Compare commits
No commits in common. "c8" and "imports/c9/dnsmasq-2.85-14.el9" have entirely different histories.
c8
...
imports/c9
@ -1 +1 @@
|
||||
d4a1af08b02b27736954ce8b2db2da7799d75812 SOURCES/dnsmasq-2.79.tar.xz
|
||||
256ec628587ab2b20bba3fc2773046dab8f2874c SOURCES/dnsmasq-2.85.tar.xz
|
||||
|
||||
2
.gitignore
vendored
2
.gitignore
vendored
@ -1 +1 @@
|
||||
SOURCES/dnsmasq-2.79.tar.xz
|
||||
SOURCES/dnsmasq-2.85.tar.xz
|
||||
|
||||
@ -1,52 +0,0 @@
|
||||
From cae343c1f3bea9d1ca2e71d3709d3f02b799f94d Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Thu, 4 Jul 2019 20:28:08 +0200
|
||||
Subject: [PATCH 1/5] Log listening on new interfaces
|
||||
|
||||
Log in debug mode listening on interfaces. They can be dynamically
|
||||
found, include interface number, since it is checked on TCP connections.
|
||||
Print also addresses found on them.
|
||||
---
|
||||
src/network.c | 12 ++++++++++++
|
||||
1 file changed, 12 insertions(+)
|
||||
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index d75f560..fd90288 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -662,6 +662,13 @@ int enumerate_interfaces(int reset)
|
||||
else
|
||||
{
|
||||
*up = l->next;
|
||||
+ if (l->iface->done)
|
||||
+ {
|
||||
+ iface = l->iface;
|
||||
+ (void)prettyprint_addr(&iface->addr, daemon->addrbuff);
|
||||
+ my_syslog(LOG_DEBUG, _("stopped listening on %s(#%d): %s"),
|
||||
+ iface->name, iface->index, daemon->addrbuff);
|
||||
+ }
|
||||
|
||||
/* In case it ever returns */
|
||||
l->iface->done = 0;
|
||||
@@ -978,6 +985,9 @@ void create_bound_listeners(int dienow)
|
||||
new->next = daemon->listeners;
|
||||
daemon->listeners = new;
|
||||
iface->done = 1;
|
||||
+ (void)prettyprint_addr(&iface->addr, daemon->addrbuff);
|
||||
+ my_syslog(LOG_DEBUG, _("listening on %s(#%d): %s"),
|
||||
+ iface->name, iface->index, daemon->addrbuff);
|
||||
}
|
||||
|
||||
/* Check for --listen-address options that haven't been used because there's
|
||||
@@ -997,6 +1007,8 @@ void create_bound_listeners(int dienow)
|
||||
{
|
||||
new->next = daemon->listeners;
|
||||
daemon->listeners = new;
|
||||
+ (void)prettyprint_addr(&if_tmp->addr, daemon->addrbuff);
|
||||
+ my_syslog(LOG_DEBUG, _("listening on %s"), daemon->addrbuff);
|
||||
}
|
||||
}
|
||||
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,74 +0,0 @@
|
||||
From 527029312cbe37c0285240943ad02352d64d403d Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Tue, 9 Jul 2019 14:05:59 +0200
|
||||
Subject: [PATCH 3/5] Cleanup interfaces no longer available
|
||||
|
||||
Clean addresses and interfaces not found after enumerate. Free unused
|
||||
records to speed up checking active interfaces and reduce used memory.
|
||||
---
|
||||
src/network.c | 32 ++++++++++++++++++++++++++++++--
|
||||
1 file changed, 30 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index f247811..d6d4b01 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -553,7 +553,30 @@ static int iface_allowed_v4(struct in_addr local, int if_index, char *label,
|
||||
|
||||
return iface_allowed((struct iface_param *)vparam, if_index, label, &addr, netmask, prefix, 0);
|
||||
}
|
||||
-
|
||||
+
|
||||
+/*
|
||||
+ * Clean old interfaces no longer found.
|
||||
+ */
|
||||
+static void clean_interfaces()
|
||||
+{
|
||||
+ struct irec *iface;
|
||||
+ struct irec **up = &daemon->interfaces;
|
||||
+
|
||||
+ for (iface = *up; iface; iface = *up)
|
||||
+ {
|
||||
+ if (!iface->found && !iface->done)
|
||||
+ {
|
||||
+ *up = iface->next;
|
||||
+ free(iface->name);
|
||||
+ free(iface);
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ up = &iface->next;
|
||||
+ }
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
int enumerate_interfaces(int reset)
|
||||
{
|
||||
static struct addrlist *spare = NULL;
|
||||
@@ -653,6 +676,7 @@ int enumerate_interfaces(int reset)
|
||||
in OPT_CLEVERBIND mode, that at listener will just disappear after
|
||||
a call to enumerate_interfaces, this is checked OK on all calls. */
|
||||
struct listener *l, *tmp, **up;
|
||||
+ int freed = 0;
|
||||
|
||||
for (up = &daemon->listeners, l = daemon->listeners; l; l = tmp)
|
||||
{
|
||||
@@ -682,10 +706,14 @@ int enumerate_interfaces(int reset)
|
||||
close(l->tftpfd);
|
||||
|
||||
free(l);
|
||||
+ freed = 1;
|
||||
}
|
||||
}
|
||||
+
|
||||
+ if (freed)
|
||||
+ clean_interfaces();
|
||||
}
|
||||
-
|
||||
+
|
||||
errno = errsave;
|
||||
spare = param.spare;
|
||||
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,75 +0,0 @@
|
||||
From 3d27384fc5f2a437b7bce128c8ba62e8d6e12df7 Mon Sep 17 00:00:00 2001
|
||||
From: Brian Haley <haleyb.dev@gmail.com>
|
||||
Date: Wed, 28 Aug 2019 16:13:23 -0400
|
||||
Subject: [PATCH] Change dhcp_release to use default address when no IP subnet
|
||||
matches
|
||||
|
||||
Currently, dhcp_release will only send a 'fake' release
|
||||
when the address given is in the same subnet as an IP
|
||||
on the interface that was given.
|
||||
|
||||
This doesn't work in an environment where dnsmasq is
|
||||
managing leases for remote subnets via a DHCP relay, as
|
||||
running dhcp_release locally will just cause it to
|
||||
silently exit without doing anything, leaving the lease
|
||||
in the database.
|
||||
|
||||
Change it to use the default IP on the interface, as the
|
||||
dnsmasq source code at src/dhcp.c does, if no matching subnet
|
||||
IP is found, as a fall-back. This fixes an issue we are
|
||||
seeing in certain Openstack deployments where we are using
|
||||
dnsmasq to provision baremetal systems in a datacenter.
|
||||
|
||||
While using Dbus might have seemed like an obvious solution,
|
||||
because of our extensive use of network namespaces (which
|
||||
Dbus doesn't support), this seemed like a better solution
|
||||
than creating system.d policy files for each dnsmasq we
|
||||
might spawn and using --enable-dbus=$id in order to isolate
|
||||
messages to specific dnsmasq instances.
|
||||
|
||||
Signed-off-by: Brian Haley <haleyb.dev@gmail.com>
|
||||
(cherry picked from commit d9f882bea2806799bf3d1f73937f5e72d0bfc650)
|
||||
---
|
||||
contrib/lease-tools/dhcp_release.c | 12 +++++++++---
|
||||
1 file changed, 9 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/contrib/lease-tools/dhcp_release.c b/contrib/lease-tools/dhcp_release.c
|
||||
index a51f04b..1dd8d32 100644
|
||||
--- a/contrib/lease-tools/dhcp_release.c
|
||||
+++ b/contrib/lease-tools/dhcp_release.c
|
||||
@@ -178,7 +178,7 @@ static int is_same_net(struct in_addr a, struct in_addr b, struct in_addr mask)
|
||||
return (a.s_addr & mask.s_addr) == (b.s_addr & mask.s_addr);
|
||||
}
|
||||
|
||||
-static struct in_addr find_interface(struct in_addr client, int fd, unsigned int index)
|
||||
+static struct in_addr find_interface(struct in_addr client, int fd, unsigned int index, int ifrfd, struct ifreq *ifr)
|
||||
{
|
||||
struct sockaddr_nl addr;
|
||||
struct nlmsghdr *h;
|
||||
@@ -218,7 +218,13 @@ static struct in_addr find_interface(struct in_addr client, int fd, unsigned int
|
||||
|
||||
for (h = (struct nlmsghdr *)iov.iov_base; NLMSG_OK(h, (size_t)len); h = NLMSG_NEXT(h, len))
|
||||
if (h->nlmsg_type == NLMSG_DONE)
|
||||
- exit(0);
|
||||
+ {
|
||||
+ /* No match found, return first address as src/dhcp.c code does */
|
||||
+ ifr->ifr_addr.sa_family = AF_INET;
|
||||
+ if (ioctl(ifrfd, SIOCGIFADDR, ifr) != -1)
|
||||
+ return ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr;
|
||||
+ exit(0);
|
||||
+ }
|
||||
else if (h->nlmsg_type == RTM_NEWADDR)
|
||||
{
|
||||
struct ifaddrmsg *ifa = NLMSG_DATA(h);
|
||||
@@ -284,7 +290,7 @@ int main(int argc, char **argv)
|
||||
}
|
||||
|
||||
lease.s_addr = inet_addr(argv[2]);
|
||||
- server = find_interface(lease, nl, if_nametoindex(argv[1]));
|
||||
+ server = find_interface(lease, nl, if_nametoindex(argv[1]), fd, &ifr);
|
||||
|
||||
memset(&packet, 0, sizeof(packet));
|
||||
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From c82a594d95431e8615126621397ea595eb037a6b Mon Sep 17 00:00:00 2001
|
||||
From 684bede049a006a0a47ce88f017ada9f73bf4430 Mon Sep 17 00:00:00 2001
|
||||
From: Doran Moppert <dmoppert@redhat.com>
|
||||
Date: Tue, 26 Sep 2017 14:48:20 +0930
|
||||
Subject: [PATCH] google patch hand-applied
|
||||
@ -6,11 +6,11 @@ Subject: [PATCH] google patch hand-applied
|
||||
---
|
||||
src/edns0.c | 10 +++++-----
|
||||
src/forward.c | 4 ++++
|
||||
src/rfc1035.c | 2 ++
|
||||
3 files changed, 11 insertions(+), 5 deletions(-)
|
||||
src/rfc1035.c | 3 +++
|
||||
3 files changed, 12 insertions(+), 5 deletions(-)
|
||||
|
||||
diff --git a/src/edns0.c b/src/edns0.c
|
||||
index af33877..ba6ff0c 100644
|
||||
index d75d3cc..7d8cf7f 100644
|
||||
--- a/src/edns0.c
|
||||
+++ b/src/edns0.c
|
||||
@@ -212,11 +212,11 @@ size_t add_pseudoheader(struct dns_header *header, size_t plen, unsigned char *l
|
||||
@ -31,10 +31,10 @@ index af33877..ba6ff0c 100644
|
||||
free(buff);
|
||||
p += rdlen;
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index cdd11d3..3078f64 100644
|
||||
index ed9c8f6..77059ed 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -1438,6 +1438,10 @@ void receive_query(struct listener *listen, time_t now)
|
||||
@@ -1542,6 +1542,10 @@ void receive_query(struct listener *listen, time_t now)
|
||||
udp_size = PACKETSZ; /* Sanity check - can't reduce below default. RFC 6891 6.2.3 */
|
||||
}
|
||||
|
||||
@ -46,18 +46,19 @@ index cdd11d3..3078f64 100644
|
||||
if (auth_dns)
|
||||
{
|
||||
diff --git a/src/rfc1035.c b/src/rfc1035.c
|
||||
index b078b59..777911b 100644
|
||||
index f1edc45..15041cc 100644
|
||||
--- a/src/rfc1035.c
|
||||
+++ b/src/rfc1035.c
|
||||
@@ -1281,6 +1281,8 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
int nxdomain = 0, auth = 1, trunc = 0, sec_data = 1;
|
||||
struct mx_srv_record *rec;
|
||||
@@ -1326,6 +1326,9 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
size_t len;
|
||||
int rd_bit = (header->hb3 & HB3_RD);
|
||||
|
||||
+ // Make sure we do not underflow here too.
|
||||
+ if (qlen > (limit - ((char *)header))) return 0;
|
||||
|
||||
+
|
||||
/* never answer queries with RD unset, to avoid cache snooping. */
|
||||
if (ntohs(header->ancount) != 0 ||
|
||||
ntohs(header->nscount) != 0 ||
|
||||
--
|
||||
2.14.3
|
||||
2.21.1
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From 89f57e39b69f92beacb6bad9c68d61f9c4fb0e77 Mon Sep 17 00:00:00 2001
|
||||
From 7b1cce1d0bdb61c09946978d4bdeb05a3cd4202a Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Fri, 2 Mar 2018 13:17:04 +0100
|
||||
Subject: [PATCH] Print warning on FIPS machine with dnssec enabled. Dnsmasq
|
||||
@ -9,7 +9,7 @@ Subject: [PATCH] Print warning on FIPS machine with dnssec enabled. Dnsmasq
|
||||
1 file changed, 5 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/dnsmasq.c b/src/dnsmasq.c
|
||||
index ce44809..9f6c020 100644
|
||||
index 480c5f9..5fd229e 100644
|
||||
--- a/src/dnsmasq.c
|
||||
+++ b/src/dnsmasq.c
|
||||
@@ -187,6 +187,7 @@ int main (int argc, char **argv)
|
||||
@ -20,9 +20,9 @@ index ce44809..9f6c020 100644
|
||||
#else
|
||||
die(_("DNSSEC not available: set HAVE_DNSSEC in src/config.h"), NULL, EC_BADCONF);
|
||||
#endif
|
||||
@@ -769,7 +770,10 @@ int main (int argc, char **argv)
|
||||
}
|
||||
|
||||
@@ -786,7 +787,10 @@ int main (int argc, char **argv)
|
||||
my_syslog(LOG_INFO, _("DNSSEC validation enabled but all unsigned answers are trusted"));
|
||||
else
|
||||
my_syslog(LOG_INFO, _("DNSSEC validation enabled"));
|
||||
-
|
||||
+
|
||||
|
||||
@ -1,364 +0,0 @@
|
||||
From 6689e336042d2ca0b075f8db1fe30ed6b47c7d4c Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Wed, 11 Nov 2020 23:25:04 +0000
|
||||
Subject: [PATCH 1/4] Fix remote buffer overflow CERT VU#434904
|
||||
|
||||
The problem is in the sort_rrset() function and allows a remote
|
||||
attacker to overwrite memory. Any dnsmasq instance with DNSSEC
|
||||
enabled is vulnerable.
|
||||
---
|
||||
src/dnssec.c | 273 ++++++++++++++++++++++++++++-----------------------
|
||||
1 file changed, 152 insertions(+), 121 deletions(-)
|
||||
|
||||
diff --git a/src/dnssec.c b/src/dnssec.c
|
||||
index 8143185..0c703ac 100644
|
||||
--- a/src/dnssec.c
|
||||
+++ b/src/dnssec.c
|
||||
@@ -222,138 +222,147 @@ static int check_date_range(u32 date_start, u32 date_end)
|
||||
&& serial_compare_32(curtime, date_end) == SERIAL_LT;
|
||||
}
|
||||
|
||||
-/* Return bytes of canonicalised rdata, when the return value is zero, the remaining
|
||||
- data, pointed to by *p, should be used raw. */
|
||||
-static int get_rdata(struct dns_header *header, size_t plen, unsigned char *end, char *buff, int bufflen,
|
||||
- unsigned char **p, u16 **desc)
|
||||
+/* Return bytes of canonicalised rrdata one by one.
|
||||
+ Init state->ip with the RR, and state->end with the end of same.
|
||||
+ Init state->op to NULL.
|
||||
+ Init state->desc to RR descriptor.
|
||||
+ Init state->buff with a MAXDNAME * 2 buffer.
|
||||
+
|
||||
+ After each call which returns 1, state->op points to the next byte of data.
|
||||
+ On returning 0, the end has been reached.
|
||||
+*/
|
||||
+struct rdata_state {
|
||||
+ u16 *desc;
|
||||
+ size_t c;
|
||||
+ unsigned char *end, *ip, *op;
|
||||
+ char *buff;
|
||||
+};
|
||||
+
|
||||
+static int get_rdata(struct dns_header *header, size_t plen, struct rdata_state *state)
|
||||
{
|
||||
- int d = **desc;
|
||||
+ int d;
|
||||
|
||||
- /* No more data needs mangling */
|
||||
- if (d == (u16)-1)
|
||||
+ if (state->op && state->c != 1)
|
||||
{
|
||||
- /* If there's more data than we have space for, just return what fits,
|
||||
- we'll get called again for more chunks */
|
||||
- if (end - *p > bufflen)
|
||||
- {
|
||||
- memcpy(buff, *p, bufflen);
|
||||
- *p += bufflen;
|
||||
- return bufflen;
|
||||
- }
|
||||
-
|
||||
- return 0;
|
||||
+ state->op++;
|
||||
+ state->c--;
|
||||
+ return 1;
|
||||
}
|
||||
-
|
||||
- (*desc)++;
|
||||
-
|
||||
- if (d == 0 && extract_name(header, plen, p, buff, 1, 0))
|
||||
- /* domain-name, canonicalise */
|
||||
- return to_wire(buff);
|
||||
- else
|
||||
- {
|
||||
- /* plain data preceding a domain-name, don't run off the end of the data */
|
||||
- if ((end - *p) < d)
|
||||
- d = end - *p;
|
||||
+
|
||||
+ while (1)
|
||||
+ {
|
||||
+ d = *(state->desc);
|
||||
|
||||
- if (d != 0)
|
||||
+ if (d == (u16)-1)
|
||||
{
|
||||
- memcpy(buff, *p, d);
|
||||
- *p += d;
|
||||
+ /* all the bytes to the end. */
|
||||
+ if ((state->c = state->end - state->ip) != 0)
|
||||
+ {
|
||||
+ state->op = state->ip;
|
||||
+ state->ip = state->end;;
|
||||
+ }
|
||||
+ else
|
||||
+ return 0;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ state->desc++;
|
||||
+
|
||||
+ if (d == (u16)0)
|
||||
+ {
|
||||
+ /* domain-name, canonicalise */
|
||||
+ int len;
|
||||
+
|
||||
+ if (!extract_name(header, plen, &state->ip, state->buff, 1, 0) ||
|
||||
+ (len = to_wire(state->buff)) == 0)
|
||||
+ continue;
|
||||
+
|
||||
+ state->c = len;
|
||||
+ state->op = (unsigned char *)state->buff;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ /* plain data preceding a domain-name, don't run off the end of the data */
|
||||
+ if ((state->end - state->ip) < d)
|
||||
+ d = state->end - state->ip;
|
||||
+
|
||||
+ if (d == 0)
|
||||
+ continue;
|
||||
+
|
||||
+ state->op = state->ip;
|
||||
+ state->c = d;
|
||||
+ state->ip += d;
|
||||
+ }
|
||||
}
|
||||
|
||||
- return d;
|
||||
+ return 1;
|
||||
}
|
||||
}
|
||||
|
||||
-/* Bubble sort the RRset into the canonical order.
|
||||
- Note that the byte-streams from two RRs may get unsynced: consider
|
||||
- RRs which have two domain-names at the start and then other data.
|
||||
- The domain-names may have different lengths in each RR, but sort equal
|
||||
-
|
||||
- ------------
|
||||
- |abcde|fghi|
|
||||
- ------------
|
||||
- |abcd|efghi|
|
||||
- ------------
|
||||
-
|
||||
- leaving the following bytes as deciding the order. Hence the nasty left1 and left2 variables.
|
||||
-*/
|
||||
+/* Bubble sort the RRset into the canonical order. */
|
||||
|
||||
static int sort_rrset(struct dns_header *header, size_t plen, u16 *rr_desc, int rrsetidx,
|
||||
unsigned char **rrset, char *buff1, char *buff2)
|
||||
{
|
||||
- int swap, quit, i, j;
|
||||
+ int swap, i, j;
|
||||
|
||||
do
|
||||
{
|
||||
for (swap = 0, i = 0; i < rrsetidx-1; i++)
|
||||
{
|
||||
- int rdlen1, rdlen2, left1, left2, len1, len2, len, rc;
|
||||
- u16 *dp1, *dp2;
|
||||
- unsigned char *end1, *end2;
|
||||
+ int rdlen1, rdlen2;
|
||||
+ struct rdata_state state1, state2;
|
||||
+
|
||||
/* Note that these have been determined to be OK previously,
|
||||
so we don't need to check for NULL return here. */
|
||||
- unsigned char *p1 = skip_name(rrset[i], header, plen, 10);
|
||||
- unsigned char *p2 = skip_name(rrset[i+1], header, plen, 10);
|
||||
-
|
||||
- p1 += 8; /* skip class, type, ttl */
|
||||
- GETSHORT(rdlen1, p1);
|
||||
- end1 = p1 + rdlen1;
|
||||
-
|
||||
- p2 += 8; /* skip class, type, ttl */
|
||||
- GETSHORT(rdlen2, p2);
|
||||
- end2 = p2 + rdlen2;
|
||||
+ state1.ip = skip_name(rrset[i], header, plen, 10);
|
||||
+ state2.ip = skip_name(rrset[i+1], header, plen, 10);
|
||||
+ state1.op = state2.op = NULL;
|
||||
+ state1.buff = buff1;
|
||||
+ state2.buff = buff2;
|
||||
+ state1.desc = state2.desc = rr_desc;
|
||||
|
||||
- dp1 = dp2 = rr_desc;
|
||||
+ state1.ip += 8; /* skip class, type, ttl */
|
||||
+ GETSHORT(rdlen1, state1.ip);
|
||||
+ if (!CHECK_LEN(header, state1.ip, plen, rdlen1))
|
||||
+ return rrsetidx; /* short packet */
|
||||
+ state1.end = state1.ip + rdlen1;
|
||||
|
||||
- for (quit = 0, left1 = 0, left2 = 0, len1 = 0, len2 = 0; !quit;)
|
||||
+ state2.ip += 8; /* skip class, type, ttl */
|
||||
+ GETSHORT(rdlen2, state2.ip);
|
||||
+ if (!CHECK_LEN(header, state2.ip, plen, rdlen2))
|
||||
+ return rrsetidx; /* short packet */
|
||||
+ state2.end = state2.ip + rdlen2;
|
||||
+
|
||||
+ while (1)
|
||||
{
|
||||
- if (left1 != 0)
|
||||
- memmove(buff1, buff1 + len1 - left1, left1);
|
||||
+ int ok1, ok2;
|
||||
|
||||
- if ((len1 = get_rdata(header, plen, end1, buff1 + left1, (MAXDNAME * 2) - left1, &p1, &dp1)) == 0)
|
||||
- {
|
||||
- quit = 1;
|
||||
- len1 = end1 - p1;
|
||||
- memcpy(buff1 + left1, p1, len1);
|
||||
- }
|
||||
- len1 += left1;
|
||||
-
|
||||
- if (left2 != 0)
|
||||
- memmove(buff2, buff2 + len2 - left2, left2);
|
||||
-
|
||||
- if ((len2 = get_rdata(header, plen, end2, buff2 + left2, (MAXDNAME *2) - left2, &p2, &dp2)) == 0)
|
||||
- {
|
||||
- quit = 1;
|
||||
- len2 = end2 - p2;
|
||||
- memcpy(buff2 + left2, p2, len2);
|
||||
- }
|
||||
- len2 += left2;
|
||||
-
|
||||
- if (len1 > len2)
|
||||
- left1 = len1 - len2, left2 = 0, len = len2;
|
||||
- else
|
||||
- left2 = len2 - len1, left1 = 0, len = len1;
|
||||
-
|
||||
- rc = (len == 0) ? 0 : memcmp(buff1, buff2, len);
|
||||
-
|
||||
- if (rc > 0 || (rc == 0 && quit && len1 > len2))
|
||||
- {
|
||||
- unsigned char *tmp = rrset[i+1];
|
||||
- rrset[i+1] = rrset[i];
|
||||
- rrset[i] = tmp;
|
||||
- swap = quit = 1;
|
||||
- }
|
||||
- else if (rc == 0 && quit && len1 == len2)
|
||||
+ ok1 = get_rdata(header, plen, &state1);
|
||||
+ ok2 = get_rdata(header, plen, &state2);
|
||||
+
|
||||
+ if (!ok1 && !ok2)
|
||||
{
|
||||
/* Two RRs are equal, remove one copy. RFC 4034, para 6.3 */
|
||||
for (j = i+1; j < rrsetidx-1; j++)
|
||||
rrset[j] = rrset[j+1];
|
||||
rrsetidx--;
|
||||
i--;
|
||||
+ break;
|
||||
+ }
|
||||
+ else if (ok1 && (!ok2 || *state1.op > *state2.op))
|
||||
+ {
|
||||
+ unsigned char *tmp = rrset[i+1];
|
||||
+ rrset[i+1] = rrset[i];
|
||||
+ rrset[i] = tmp;
|
||||
+ swap = 1;
|
||||
+ break;
|
||||
}
|
||||
- else if (rc < 0)
|
||||
- quit = 1;
|
||||
+ else if (ok2 && (!ok1 || *state2.op > *state1.op))
|
||||
+ break;
|
||||
+
|
||||
+ /* arrive here when bytes are equal, go round the loop again
|
||||
+ and compare the next ones. */
|
||||
}
|
||||
}
|
||||
} while (swap);
|
||||
@@ -549,15 +558,18 @@ static int validate_rrset(time_t now, struct dns_header *header, size_t plen, in
|
||||
wire_len = to_wire(keyname);
|
||||
hash->update(ctx, (unsigned int)wire_len, (unsigned char*)keyname);
|
||||
from_wire(keyname);
|
||||
+
|
||||
+#define RRBUFLEN 300 /* Most RRs are smaller than this. */
|
||||
|
||||
for (i = 0; i < rrsetidx; ++i)
|
||||
{
|
||||
- int seg;
|
||||
- unsigned char *end, *cp;
|
||||
- u16 len, *dp;
|
||||
+ int j;
|
||||
+ struct rdata_state state;
|
||||
+ u16 len;
|
||||
+ unsigned char rrbuf[RRBUFLEN];
|
||||
|
||||
p = rrset[i];
|
||||
-
|
||||
+
|
||||
if (!extract_name(header, plen, &p, name, 1, 10))
|
||||
return STAT_BOGUS;
|
||||
|
||||
@@ -566,12 +578,11 @@ static int validate_rrset(time_t now, struct dns_header *header, size_t plen, in
|
||||
/* if more labels than in RRsig name, hash *.<no labels in rrsig labels field> 4035 5.3.2 */
|
||||
if (labels < name_labels)
|
||||
{
|
||||
- int k;
|
||||
- for (k = name_labels - labels; k != 0; k--)
|
||||
+ for (j = name_labels - labels; j != 0; j--)
|
||||
{
|
||||
while (*name_start != '.' && *name_start != 0)
|
||||
name_start++;
|
||||
- if (k != 1 && *name_start == '.')
|
||||
+ if (j != 1 && *name_start == '.')
|
||||
name_start++;
|
||||
}
|
||||
|
||||
@@ -592,24 +603,44 @@ static int validate_rrset(time_t now, struct dns_header *header, size_t plen, in
|
||||
if (!CHECK_LEN(header, p, plen, rdlen))
|
||||
return STAT_BOGUS;
|
||||
|
||||
- end = p + rdlen;
|
||||
+ /* canonicalise rdata and calculate length of same, use
|
||||
+ name buffer as workspace for get_rdata. */
|
||||
+ state.ip = p;
|
||||
+ state.op = NULL;
|
||||
+ state.desc = rr_desc;
|
||||
+ state.buff = name;
|
||||
+ state.end = p + rdlen;
|
||||
|
||||
- /* canonicalise rdata and calculate length of same, use name buffer as workspace.
|
||||
- Note that name buffer is twice MAXDNAME long in DNSSEC mode. */
|
||||
- cp = p;
|
||||
- dp = rr_desc;
|
||||
- for (len = 0; (seg = get_rdata(header, plen, end, name, MAXDNAME * 2, &cp, &dp)) != 0; len += seg);
|
||||
- len += end - cp;
|
||||
- len = htons(len);
|
||||
+ for (j = 0; get_rdata(header, plen, &state); j++)
|
||||
+ if (j < RRBUFLEN)
|
||||
+ rrbuf[j] = *state.op;
|
||||
+
|
||||
+ len = htons((u16)j);
|
||||
hash->update(ctx, 2, (unsigned char *)&len);
|
||||
+
|
||||
+ /* If the RR is shorter than RRBUFLEN (most of them, in practice)
|
||||
+ then we can just digest it now. If it exceeds RRBUFLEN we have to
|
||||
+ go back to the start and do it in chunks. */
|
||||
+ if (j >= RRBUFLEN)
|
||||
+ {
|
||||
+ state.ip = p;
|
||||
+ state.op = NULL;
|
||||
+ state.desc = rr_desc;
|
||||
+
|
||||
+ for (j = 0; get_rdata(header, plen, &state); j++)
|
||||
+ {
|
||||
+ rrbuf[j] = *state.op;
|
||||
+
|
||||
+ if (j == RRBUFLEN - 1)
|
||||
+ {
|
||||
+ hash->update(ctx, RRBUFLEN, rrbuf);
|
||||
+ j = -1;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
|
||||
- /* Now canonicalise again and digest. */
|
||||
- cp = p;
|
||||
- dp = rr_desc;
|
||||
- while ((seg = get_rdata(header, plen, end, name, MAXDNAME * 2, &cp, &dp)))
|
||||
- hash->update(ctx, seg, (unsigned char *)name);
|
||||
- if (cp != end)
|
||||
- hash->update(ctx, end - cp, cp);
|
||||
+ if (j != 0)
|
||||
+ hash->update(ctx, j, rrbuf);
|
||||
}
|
||||
|
||||
hash->digest(ctx, hash->digest_size, digest);
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,94 +0,0 @@
|
||||
From 04ef96f428beebd07b457b51b5d2f26d3099f1a5 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Thu, 12 Nov 2020 18:49:23 +0000
|
||||
Subject: [PATCH 2/4] Check destination of DNS UDP query replies.
|
||||
|
||||
At any time, dnsmasq will have a set of sockets open, bound to
|
||||
random ports, on which it sends queries to upstream nameservers.
|
||||
This patch fixes the existing problem that a reply for ANY in-flight
|
||||
query would be accepted via ANY open port, which increases the
|
||||
chances of an attacker flooding answers "in the blind" in an
|
||||
attempt to poison the DNS cache. CERT VU#434904 refers.
|
||||
---
|
||||
src/forward.c | 37 ++++++++++++++++++++++++++++---------
|
||||
1 file changed, 28 insertions(+), 9 deletions(-)
|
||||
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index cdd11d3..85eab27 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -16,7 +16,7 @@
|
||||
|
||||
#include "dnsmasq.h"
|
||||
|
||||
-static struct frec *lookup_frec(unsigned short id, void *hash);
|
||||
+static struct frec *lookup_frec(unsigned short id, int fd, int family, void *hash);
|
||||
static struct frec *lookup_frec_by_sender(unsigned short id,
|
||||
union mysockaddr *addr,
|
||||
void *hash);
|
||||
@@ -780,7 +780,7 @@ void reply_query(int fd, int family, time_t now)
|
||||
crc = questions_crc(header, n, daemon->namebuff);
|
||||
#endif
|
||||
|
||||
- if (!(forward = lookup_frec(ntohs(header->id), hash)))
|
||||
+ if (!(forward = lookup_frec(ntohs(header->id), fd, family, hash)))
|
||||
return;
|
||||
|
||||
/* log_query gets called indirectly all over the place, so
|
||||
@@ -2195,14 +2195,25 @@ struct frec *get_new_frec(time_t now, int *wait, int force)
|
||||
}
|
||||
|
||||
/* crc is all-ones if not known. */
|
||||
-static struct frec *lookup_frec(unsigned short id, void *hash)
|
||||
+static struct frec *lookup_frec(unsigned short id, int fd, int family, void *hash)
|
||||
{
|
||||
struct frec *f;
|
||||
|
||||
for(f = daemon->frec_list; f; f = f->next)
|
||||
if (f->sentto && f->new_id == id &&
|
||||
(!hash || memcmp(hash, f->hash, HASH_SIZE) == 0))
|
||||
- return f;
|
||||
+ {
|
||||
+ /* sent from random port */
|
||||
+ if (family == AF_INET && f->rfd4 && f->rfd4->fd == fd)
|
||||
+ return f;
|
||||
+
|
||||
+ if (family == AF_INET6 && f->rfd6 && f->rfd6->fd == fd)
|
||||
+ return f;
|
||||
+
|
||||
+ /* sent to upstream from bound socket. */
|
||||
+ if (f->sentto->sfd && f->sentto->sfd->fd == fd)
|
||||
+ return f;
|
||||
+ }
|
||||
|
||||
return NULL;
|
||||
}
|
||||
@@ -2263,12 +2274,20 @@ void server_gone(struct server *server)
|
||||
static unsigned short get_id(void)
|
||||
{
|
||||
unsigned short ret = 0;
|
||||
+ struct frec *f;
|
||||
|
||||
- do
|
||||
- ret = rand16();
|
||||
- while (lookup_frec(ret, NULL));
|
||||
-
|
||||
- return ret;
|
||||
+ while (1)
|
||||
+ {
|
||||
+ ret = rand16();
|
||||
+
|
||||
+ /* ensure id is unique. */
|
||||
+ for (f = daemon->frec_list; f; f = f->next)
|
||||
+ if (f->sentto && f->new_id == ret)
|
||||
+ break;
|
||||
+
|
||||
+ if (!f)
|
||||
+ return ret;
|
||||
+ }
|
||||
}
|
||||
|
||||
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,586 +0,0 @@
|
||||
From 6cbbae54c9232f182cc76f05962a07244d748b75 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Thu, 12 Nov 2020 22:06:07 +0000
|
||||
Subject: [PATCH 3/4] Use SHA-256 to provide security against DNS cache
|
||||
poisoning.
|
||||
|
||||
Use the SHA-256 hash function to verify that DNS answers
|
||||
received are for the questions originally asked. This replaces
|
||||
the slightly insecure SHA-1 (when compiled with DNSSEC) or
|
||||
the very insecure CRC32 (otherwise). Refer: CERT VU#434904.
|
||||
---
|
||||
Makefile | 3 +-
|
||||
bld/Android.mk | 3 +-
|
||||
src/dnsmasq.h | 11 +-
|
||||
src/dnssec.c | 31 -----
|
||||
src/forward.c | 43 ++-----
|
||||
src/hash_questions.c | 281 +++++++++++++++++++++++++++++++++++++++++++
|
||||
src/rfc1035.c | 49 --------
|
||||
7 files changed, 297 insertions(+), 124 deletions(-)
|
||||
create mode 100644 src/hash_questions.c
|
||||
|
||||
diff --git a/Makefile b/Makefile
|
||||
index 98ec760..cbbe5d7 100644
|
||||
--- a/Makefile
|
||||
+++ b/Makefile
|
||||
@@ -76,7 +76,8 @@ objs = cache.o rfc1035.o util.o option.o forward.o network.o \
|
||||
helper.o tftp.o log.o conntrack.o dhcp6.o rfc3315.o \
|
||||
dhcp-common.o outpacket.o radv.o slaac.o auth.o ipset.o \
|
||||
domain.o dnssec.o blockdata.o tables.o loop.o inotify.o \
|
||||
- poll.o rrfilter.o edns0.o arp.o crypto.o
|
||||
+ poll.o rrfilter.o edns0.o arp.o crypto.o \
|
||||
+ hash_questions.o
|
||||
|
||||
hdrs = dnsmasq.h config.h dhcp-protocol.h dhcp6-protocol.h \
|
||||
dns-protocol.h radv-protocol.h ip6addr.h
|
||||
diff --git a/bld/Android.mk b/bld/Android.mk
|
||||
index 80ec842..2db29c1 100644
|
||||
--- a/bld/Android.mk
|
||||
+++ b/bld/Android.mk
|
||||
@@ -10,7 +10,8 @@ LOCAL_SRC_FILES := bpf.c cache.c dbus.c dhcp.c dnsmasq.c \
|
||||
dhcp6.c rfc3315.c dhcp-common.c outpacket.c \
|
||||
radv.c slaac.c auth.c ipset.c domain.c \
|
||||
dnssec.c dnssec-openssl.c blockdata.c tables.c \
|
||||
- loop.c inotify.c poll.c rrfilter.c edns0.c arp.c crypto.c
|
||||
+ loop.c inotify.c poll.c rrfilter.c edns0.c arp.c \
|
||||
+ crypto.c hash_questions.c
|
||||
|
||||
LOCAL_MODULE := dnsmasq
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 6773b69..f31503d 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -615,11 +615,7 @@ struct hostsfile {
|
||||
#define FREC_TEST_PKTSZ 256
|
||||
#define FREC_HAS_EXTRADATA 512
|
||||
|
||||
-#ifdef HAVE_DNSSEC
|
||||
-#define HASH_SIZE 20 /* SHA-1 digest size */
|
||||
-#else
|
||||
-#define HASH_SIZE sizeof(int)
|
||||
-#endif
|
||||
+#define HASH_SIZE 32 /* SHA-256 digest size */
|
||||
|
||||
struct frec {
|
||||
union mysockaddr source;
|
||||
@@ -1156,7 +1152,6 @@ int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name,
|
||||
struct bogus_addr *baddr, time_t now);
|
||||
int check_for_ignored_address(struct dns_header *header, size_t qlen, struct bogus_addr *baddr);
|
||||
int check_for_local_domain(char *name, time_t now);
|
||||
-unsigned int questions_crc(struct dns_header *header, size_t plen, char *name);
|
||||
size_t resize_packet(struct dns_header *header, size_t plen,
|
||||
unsigned char *pheader, size_t hlen);
|
||||
int add_resource_record(struct dns_header *header, char *limit, int *truncp,
|
||||
@@ -1184,9 +1179,11 @@ int dnssec_validate_reply(time_t now, struct dns_header *header, size_t plen, ch
|
||||
int check_unsigned, int *neganswer, int *nons);
|
||||
int dnskey_keytag(int alg, int flags, unsigned char *key, int keylen);
|
||||
size_t filter_rrsigs(struct dns_header *header, size_t plen);
|
||||
-unsigned char* hash_questions(struct dns_header *header, size_t plen, char *name);
|
||||
int setup_timestamp(void);
|
||||
|
||||
+/* hash_questions.c */
|
||||
+unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name);
|
||||
+
|
||||
/* crypto.c */
|
||||
const struct nettle_hash *hash_find(char *name);
|
||||
int hash_init(const struct nettle_hash *hash, void **ctxp, unsigned char **digestp);
|
||||
diff --git a/src/dnssec.c b/src/dnssec.c
|
||||
index 0c703ac..b2dda1b 100644
|
||||
--- a/src/dnssec.c
|
||||
+++ b/src/dnssec.c
|
||||
@@ -2095,35 +2095,4 @@ size_t dnssec_generate_query(struct dns_header *header, unsigned char *end, char
|
||||
return ret;
|
||||
}
|
||||
|
||||
-unsigned char* hash_questions(struct dns_header *header, size_t plen, char *name)
|
||||
-{
|
||||
- int q;
|
||||
- unsigned int len;
|
||||
- unsigned char *p = (unsigned char *)(header+1);
|
||||
- const struct nettle_hash *hash;
|
||||
- void *ctx;
|
||||
- unsigned char *digest;
|
||||
-
|
||||
- if (!(hash = hash_find("sha1")) || !hash_init(hash, &ctx, &digest))
|
||||
- return NULL;
|
||||
-
|
||||
- for (q = ntohs(header->qdcount); q != 0; q--)
|
||||
- {
|
||||
- if (!extract_name(header, plen, &p, name, 1, 4))
|
||||
- break; /* bad packet */
|
||||
-
|
||||
- len = to_wire(name);
|
||||
- hash->update(ctx, len, (unsigned char *)name);
|
||||
- /* CRC the class and type as well */
|
||||
- hash->update(ctx, 4, p);
|
||||
-
|
||||
- p += 4;
|
||||
- if (!CHECK_LEN(header, p, plen, 0))
|
||||
- break; /* bad packet */
|
||||
- }
|
||||
-
|
||||
- hash->digest(ctx, hash->digest_size, digest);
|
||||
- return digest;
|
||||
-}
|
||||
-
|
||||
#endif /* HAVE_DNSSEC */
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 85eab27..7ffcaf7 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -239,19 +239,16 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
struct all_addr *addrp = NULL;
|
||||
unsigned int flags = 0;
|
||||
struct server *start = NULL;
|
||||
-#ifdef HAVE_DNSSEC
|
||||
void *hash = hash_questions(header, plen, daemon->namebuff);
|
||||
+#ifdef HAVE_DNSSEC
|
||||
int do_dnssec = 0;
|
||||
-#else
|
||||
- unsigned int crc = questions_crc(header, plen, daemon->namebuff);
|
||||
- void *hash = &crc;
|
||||
#endif
|
||||
unsigned int gotname = extract_request(header, plen, daemon->namebuff, NULL);
|
||||
|
||||
(void)do_bit;
|
||||
|
||||
/* may be no servers available. */
|
||||
- if (forward || (hash && (forward = lookup_frec_by_sender(ntohs(header->id), udpaddr, hash))))
|
||||
+ if (forward || (forward = lookup_frec_by_sender(ntohs(header->id), udpaddr, hash)))
|
||||
{
|
||||
/* If we didn't get an answer advertising a maximal packet in EDNS,
|
||||
fall back to 1280, which should work everywhere on IPv6.
|
||||
@@ -741,9 +738,6 @@ void reply_query(int fd, int family, time_t now)
|
||||
size_t nn;
|
||||
struct server *server;
|
||||
void *hash;
|
||||
-#ifndef HAVE_DNSSEC
|
||||
- unsigned int crc;
|
||||
-#endif
|
||||
|
||||
/* packet buffer overwritten */
|
||||
daemon->srv_save = NULL;
|
||||
@@ -773,12 +767,7 @@ void reply_query(int fd, int family, time_t now)
|
||||
if (difftime(now, server->pktsz_reduced) > UDP_TEST_TIME)
|
||||
server->edns_pktsz = daemon->edns_pktsz;
|
||||
|
||||
-#ifdef HAVE_DNSSEC
|
||||
hash = hash_questions(header, n, daemon->namebuff);
|
||||
-#else
|
||||
- hash = &crc;
|
||||
- crc = questions_crc(header, n, daemon->namebuff);
|
||||
-#endif
|
||||
|
||||
if (!(forward = lookup_frec(ntohs(header->id), fd, family, hash)))
|
||||
return;
|
||||
@@ -1006,8 +995,7 @@ void reply_query(int fd, int family, time_t now)
|
||||
nn = dnssec_generate_query(header,((unsigned char *) header) + server->edns_pktsz,
|
||||
daemon->keyname, forward->class, T_DS, &server->addr, server->edns_pktsz);
|
||||
}
|
||||
- if ((hash = hash_questions(header, nn, daemon->namebuff)))
|
||||
- memcpy(new->hash, hash, HASH_SIZE);
|
||||
+ memcpy(new->hash, hash_questions(header, nn, daemon->namebuff), HASH_SIZE);
|
||||
new->new_id = get_id();
|
||||
header->id = htons(new->new_id);
|
||||
/* Save query for retransmission */
|
||||
@@ -1840,15 +1828,9 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
if (!flags && last_server)
|
||||
{
|
||||
struct server *firstsendto = NULL;
|
||||
-#ifdef HAVE_DNSSEC
|
||||
- unsigned char *newhash, hash[HASH_SIZE];
|
||||
- if ((newhash = hash_questions(header, (unsigned int)size, daemon->namebuff)))
|
||||
- memcpy(hash, newhash, HASH_SIZE);
|
||||
- else
|
||||
- memset(hash, 0, HASH_SIZE);
|
||||
-#else
|
||||
- unsigned int crc = questions_crc(header, (unsigned int)size, daemon->namebuff);
|
||||
-#endif
|
||||
+ unsigned char hash[HASH_SIZE];
|
||||
+ memcpy(hash, hash_questions(header, (unsigned int)size, daemon->namebuff), HASH_SIZE);
|
||||
+
|
||||
/* Loop round available servers until we succeed in connecting to one.
|
||||
Note that this code subtly ensures that consecutive queries on this connection
|
||||
which can go to the same server, do so. */
|
||||
@@ -1973,20 +1955,11 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
/* If the crc of the question section doesn't match the crc we sent, then
|
||||
someone might be attempting to insert bogus values into the cache by
|
||||
sending replies containing questions and bogus answers. */
|
||||
-#ifdef HAVE_DNSSEC
|
||||
- newhash = hash_questions(header, (unsigned int)m, daemon->namebuff);
|
||||
- if (!newhash || memcmp(hash, newhash, HASH_SIZE) != 0)
|
||||
+ if (memcmp(hash, hash_questions(header, (unsigned int)m, daemon->namebuff), HASH_SIZE) != 0)
|
||||
{
|
||||
m = 0;
|
||||
break;
|
||||
}
|
||||
-#else
|
||||
- if (crc != questions_crc(header, (unsigned int)m, daemon->namebuff))
|
||||
- {
|
||||
- m = 0;
|
||||
- break;
|
||||
- }
|
||||
-#endif
|
||||
|
||||
m = process_reply(header, now, last_server, (unsigned int)m,
|
||||
option_bool(OPT_NO_REBIND) && !norebind, no_cache_dnssec, cache_secure, bogusanswer,
|
||||
@@ -2201,7 +2174,7 @@ static struct frec *lookup_frec(unsigned short id, int fd, int family, void *has
|
||||
|
||||
for(f = daemon->frec_list; f; f = f->next)
|
||||
if (f->sentto && f->new_id == id &&
|
||||
- (!hash || memcmp(hash, f->hash, HASH_SIZE) == 0))
|
||||
+ (memcmp(hash, f->hash, HASH_SIZE) == 0))
|
||||
{
|
||||
/* sent from random port */
|
||||
if (family == AF_INET && f->rfd4 && f->rfd4->fd == fd)
|
||||
diff --git a/src/hash_questions.c b/src/hash_questions.c
|
||||
new file mode 100644
|
||||
index 0000000..ae112ac
|
||||
--- /dev/null
|
||||
+++ b/src/hash_questions.c
|
||||
@@ -0,0 +1,281 @@
|
||||
+/* Copyright (c) 2012-2020 Simon Kelley
|
||||
+
|
||||
+ This program is free software; you can redistribute it and/or modify
|
||||
+ it under the terms of the GNU General Public License as published by
|
||||
+ the Free Software Foundation; version 2 dated June, 1991, or
|
||||
+ (at your option) version 3 dated 29 June, 2007.
|
||||
+
|
||||
+ This program is distributed in the hope that it will be useful,
|
||||
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
+ GNU General Public License for more details.
|
||||
+
|
||||
+ You should have received a copy of the GNU General Public License
|
||||
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
+*/
|
||||
+
|
||||
+
|
||||
+/* Hash the question section. This is used to safely detect query
|
||||
+ retransmission and to detect answers to questions we didn't ask, which
|
||||
+ might be poisoning attacks. Note that we decode the name rather
|
||||
+ than CRC the raw bytes, since replies might be compressed differently.
|
||||
+ We ignore case in the names for the same reason.
|
||||
+
|
||||
+ The hash used is SHA-256. If we're building with DNSSEC support,
|
||||
+ we use the Nettle cypto library. If not, we prefer not to
|
||||
+ add a dependency on Nettle, and use a stand-alone implementaion.
|
||||
+*/
|
||||
+
|
||||
+#include "dnsmasq.h"
|
||||
+
|
||||
+#ifdef HAVE_DNSSEC
|
||||
+unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name)
|
||||
+{
|
||||
+ int q;
|
||||
+ unsigned char *p = (unsigned char *)(header+1);
|
||||
+ const struct nettle_hash *hash;
|
||||
+ void *ctx;
|
||||
+ unsigned char *digest;
|
||||
+
|
||||
+ if (!(hash = hash_find("sha256")) || !hash_init(hash, &ctx, &digest))
|
||||
+ {
|
||||
+ /* don't think this can ever happen. */
|
||||
+ static unsigned char dummy[HASH_SIZE];
|
||||
+ static int warned = 0;
|
||||
+
|
||||
+ if (warned)
|
||||
+ my_syslog(LOG_ERR, _("Failed to create SHA-256 hash object"));
|
||||
+ warned = 1;
|
||||
+
|
||||
+ return dummy;
|
||||
+ }
|
||||
+
|
||||
+ for (q = ntohs(header->qdcount); q != 0; q--)
|
||||
+ {
|
||||
+ char *cp, c;
|
||||
+
|
||||
+ if (!extract_name(header, plen, &p, name, 1, 4))
|
||||
+ break; /* bad packet */
|
||||
+
|
||||
+ for (cp = name; (c = *cp); cp++)
|
||||
+ if (c >= 'A' && c <= 'Z')
|
||||
+ *cp += 'a' - 'A';
|
||||
+
|
||||
+ hash->update(ctx, cp - name, (unsigned char *)name);
|
||||
+ /* CRC the class and type as well */
|
||||
+ hash->update(ctx, 4, p);
|
||||
+
|
||||
+ p += 4;
|
||||
+ if (!CHECK_LEN(header, p, plen, 0))
|
||||
+ break; /* bad packet */
|
||||
+ }
|
||||
+
|
||||
+ hash->digest(ctx, hash->digest_size, digest);
|
||||
+ return digest;
|
||||
+}
|
||||
+
|
||||
+#else /* HAVE_DNSSEC */
|
||||
+
|
||||
+#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
|
||||
+typedef unsigned char BYTE; // 8-bit byte
|
||||
+typedef unsigned int WORD; // 32-bit word, change to "long" for 16-bit machines
|
||||
+
|
||||
+typedef struct {
|
||||
+ BYTE data[64];
|
||||
+ WORD datalen;
|
||||
+ unsigned long long bitlen;
|
||||
+ WORD state[8];
|
||||
+} SHA256_CTX;
|
||||
+
|
||||
+static void sha256_init(SHA256_CTX *ctx);
|
||||
+static void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len);
|
||||
+static void sha256_final(SHA256_CTX *ctx, BYTE hash[]);
|
||||
+
|
||||
+
|
||||
+unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name)
|
||||
+{
|
||||
+ int q;
|
||||
+ unsigned char *p = (unsigned char *)(header+1);
|
||||
+ SHA256_CTX ctx;
|
||||
+ static BYTE digest[SHA256_BLOCK_SIZE];
|
||||
+
|
||||
+ sha256_init(&ctx);
|
||||
+
|
||||
+ for (q = ntohs(header->qdcount); q != 0; q--)
|
||||
+ {
|
||||
+ char *cp, c;
|
||||
+
|
||||
+ if (!extract_name(header, plen, &p, name, 1, 4))
|
||||
+ break; /* bad packet */
|
||||
+
|
||||
+ for (cp = name; (c = *cp); cp++)
|
||||
+ if (c >= 'A' && c <= 'Z')
|
||||
+ *cp += 'a' - 'A';
|
||||
+
|
||||
+ sha256_update(&ctx, (BYTE *)name, cp - name);
|
||||
+ /* CRC the class and type as well */
|
||||
+ sha256_update(&ctx, (BYTE *)p, 4);
|
||||
+
|
||||
+ p += 4;
|
||||
+ if (!CHECK_LEN(header, p, plen, 0))
|
||||
+ break; /* bad packet */
|
||||
+ }
|
||||
+
|
||||
+ sha256_final(&ctx, digest);
|
||||
+ return (unsigned char *)digest;
|
||||
+}
|
||||
+
|
||||
+/* Code from here onwards comes from https://github.com/B-Con/crypto-algorithms
|
||||
+ and was written by Brad Conte (brad@bradconte.com), to whom all credit is given.
|
||||
+
|
||||
+ This code is in the public domain, and the copyright notice at the head of this
|
||||
+ file does not apply to it.
|
||||
+*/
|
||||
+
|
||||
+
|
||||
+/****************************** MACROS ******************************/
|
||||
+#define ROTLEFT(a,b) (((a) << (b)) | ((a) >> (32-(b))))
|
||||
+#define ROTRIGHT(a,b) (((a) >> (b)) | ((a) << (32-(b))))
|
||||
+
|
||||
+#define CH(x,y,z) (((x) & (y)) ^ (~(x) & (z)))
|
||||
+#define MAJ(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
|
||||
+#define EP0(x) (ROTRIGHT(x,2) ^ ROTRIGHT(x,13) ^ ROTRIGHT(x,22))
|
||||
+#define EP1(x) (ROTRIGHT(x,6) ^ ROTRIGHT(x,11) ^ ROTRIGHT(x,25))
|
||||
+#define SIG0(x) (ROTRIGHT(x,7) ^ ROTRIGHT(x,18) ^ ((x) >> 3))
|
||||
+#define SIG1(x) (ROTRIGHT(x,17) ^ ROTRIGHT(x,19) ^ ((x) >> 10))
|
||||
+
|
||||
+/**************************** VARIABLES *****************************/
|
||||
+static const WORD k[64] = {
|
||||
+ 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,
|
||||
+ 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,
|
||||
+ 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,
|
||||
+ 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,
|
||||
+ 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,
|
||||
+ 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,0xd192e819,0xd6990624,0xf40e3585,0x106aa070,
|
||||
+ 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,
|
||||
+ 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
||||
+};
|
||||
+
|
||||
+/*********************** FUNCTION DEFINITIONS ***********************/
|
||||
+static void sha256_transform(SHA256_CTX *ctx, const BYTE data[])
|
||||
+{
|
||||
+ WORD a, b, c, d, e, f, g, h, i, j, t1, t2, m[64];
|
||||
+
|
||||
+ for (i = 0, j = 0; i < 16; ++i, j += 4)
|
||||
+ m[i] = (data[j] << 24) | (data[j + 1] << 16) | (data[j + 2] << 8) | (data[j + 3]);
|
||||
+ for ( ; i < 64; ++i)
|
||||
+ m[i] = SIG1(m[i - 2]) + m[i - 7] + SIG0(m[i - 15]) + m[i - 16];
|
||||
+
|
||||
+ a = ctx->state[0];
|
||||
+ b = ctx->state[1];
|
||||
+ c = ctx->state[2];
|
||||
+ d = ctx->state[3];
|
||||
+ e = ctx->state[4];
|
||||
+ f = ctx->state[5];
|
||||
+ g = ctx->state[6];
|
||||
+ h = ctx->state[7];
|
||||
+
|
||||
+ for (i = 0; i < 64; ++i)
|
||||
+ {
|
||||
+ t1 = h + EP1(e) + CH(e,f,g) + k[i] + m[i];
|
||||
+ t2 = EP0(a) + MAJ(a,b,c);
|
||||
+ h = g;
|
||||
+ g = f;
|
||||
+ f = e;
|
||||
+ e = d + t1;
|
||||
+ d = c;
|
||||
+ c = b;
|
||||
+ b = a;
|
||||
+ a = t1 + t2;
|
||||
+ }
|
||||
+
|
||||
+ ctx->state[0] += a;
|
||||
+ ctx->state[1] += b;
|
||||
+ ctx->state[2] += c;
|
||||
+ ctx->state[3] += d;
|
||||
+ ctx->state[4] += e;
|
||||
+ ctx->state[5] += f;
|
||||
+ ctx->state[6] += g;
|
||||
+ ctx->state[7] += h;
|
||||
+}
|
||||
+
|
||||
+static void sha256_init(SHA256_CTX *ctx)
|
||||
+{
|
||||
+ ctx->datalen = 0;
|
||||
+ ctx->bitlen = 0;
|
||||
+ ctx->state[0] = 0x6a09e667;
|
||||
+ ctx->state[1] = 0xbb67ae85;
|
||||
+ ctx->state[2] = 0x3c6ef372;
|
||||
+ ctx->state[3] = 0xa54ff53a;
|
||||
+ ctx->state[4] = 0x510e527f;
|
||||
+ ctx->state[5] = 0x9b05688c;
|
||||
+ ctx->state[6] = 0x1f83d9ab;
|
||||
+ ctx->state[7] = 0x5be0cd19;
|
||||
+}
|
||||
+
|
||||
+static void sha256_update(SHA256_CTX *ctx, const BYTE data[], size_t len)
|
||||
+{
|
||||
+ WORD i;
|
||||
+
|
||||
+ for (i = 0; i < len; ++i)
|
||||
+ {
|
||||
+ ctx->data[ctx->datalen] = data[i];
|
||||
+ ctx->datalen++;
|
||||
+ if (ctx->datalen == 64) {
|
||||
+ sha256_transform(ctx, ctx->data);
|
||||
+ ctx->bitlen += 512;
|
||||
+ ctx->datalen = 0;
|
||||
+ }
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+static void sha256_final(SHA256_CTX *ctx, BYTE hash[])
|
||||
+{
|
||||
+ WORD i;
|
||||
+
|
||||
+ i = ctx->datalen;
|
||||
+
|
||||
+ // Pad whatever data is left in the buffer.
|
||||
+ if (ctx->datalen < 56)
|
||||
+ {
|
||||
+ ctx->data[i++] = 0x80;
|
||||
+ while (i < 56)
|
||||
+ ctx->data[i++] = 0x00;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ ctx->data[i++] = 0x80;
|
||||
+ while (i < 64)
|
||||
+ ctx->data[i++] = 0x00;
|
||||
+ sha256_transform(ctx, ctx->data);
|
||||
+ memset(ctx->data, 0, 56);
|
||||
+ }
|
||||
+
|
||||
+ // Append to the padding the total message's length in bits and transform.
|
||||
+ ctx->bitlen += ctx->datalen * 8;
|
||||
+ ctx->data[63] = ctx->bitlen;
|
||||
+ ctx->data[62] = ctx->bitlen >> 8;
|
||||
+ ctx->data[61] = ctx->bitlen >> 16;
|
||||
+ ctx->data[60] = ctx->bitlen >> 24;
|
||||
+ ctx->data[59] = ctx->bitlen >> 32;
|
||||
+ ctx->data[58] = ctx->bitlen >> 40;
|
||||
+ ctx->data[57] = ctx->bitlen >> 48;
|
||||
+ ctx->data[56] = ctx->bitlen >> 56;
|
||||
+ sha256_transform(ctx, ctx->data);
|
||||
+
|
||||
+ // Since this implementation uses little endian byte ordering and SHA uses big endian,
|
||||
+ // reverse all the bytes when copying the final state to the output hash.
|
||||
+ for (i = 0; i < 4; ++i)
|
||||
+ {
|
||||
+ hash[i] = (ctx->state[0] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 4] = (ctx->state[1] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 8] = (ctx->state[2] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 12] = (ctx->state[3] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 16] = (ctx->state[4] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 20] = (ctx->state[5] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 24] = (ctx->state[6] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ hash[i + 28] = (ctx->state[7] >> (24 - i * 8)) & 0x000000ff;
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+#endif
|
||||
diff --git a/src/rfc1035.c b/src/rfc1035.c
|
||||
index b078b59..d413f58 100644
|
||||
--- a/src/rfc1035.c
|
||||
+++ b/src/rfc1035.c
|
||||
@@ -335,55 +335,6 @@ unsigned char *skip_section(unsigned char *ansp, int count, struct dns_header *h
|
||||
return ansp;
|
||||
}
|
||||
|
||||
-/* CRC the question section. This is used to safely detect query
|
||||
- retransmission and to detect answers to questions we didn't ask, which
|
||||
- might be poisoning attacks. Note that we decode the name rather
|
||||
- than CRC the raw bytes, since replies might be compressed differently.
|
||||
- We ignore case in the names for the same reason. Return all-ones
|
||||
- if there is not question section. */
|
||||
-#ifndef HAVE_DNSSEC
|
||||
-unsigned int questions_crc(struct dns_header *header, size_t plen, char *name)
|
||||
-{
|
||||
- int q;
|
||||
- unsigned int crc = 0xffffffff;
|
||||
- unsigned char *p1, *p = (unsigned char *)(header+1);
|
||||
-
|
||||
- for (q = ntohs(header->qdcount); q != 0; q--)
|
||||
- {
|
||||
- if (!extract_name(header, plen, &p, name, 1, 4))
|
||||
- return crc; /* bad packet */
|
||||
-
|
||||
- for (p1 = (unsigned char *)name; *p1; p1++)
|
||||
- {
|
||||
- int i = 8;
|
||||
- char c = *p1;
|
||||
-
|
||||
- if (c >= 'A' && c <= 'Z')
|
||||
- c += 'a' - 'A';
|
||||
-
|
||||
- crc ^= c << 24;
|
||||
- while (i--)
|
||||
- crc = crc & 0x80000000 ? (crc << 1) ^ 0x04c11db7 : crc << 1;
|
||||
- }
|
||||
-
|
||||
- /* CRC the class and type as well */
|
||||
- for (p1 = p; p1 < p+4; p1++)
|
||||
- {
|
||||
- int i = 8;
|
||||
- crc ^= *p1 << 24;
|
||||
- while (i--)
|
||||
- crc = crc & 0x80000000 ? (crc << 1) ^ 0x04c11db7 : crc << 1;
|
||||
- }
|
||||
-
|
||||
- p += 4;
|
||||
- if (!CHECK_LEN(header, p, plen, 0))
|
||||
- return crc; /* bad packet */
|
||||
- }
|
||||
-
|
||||
- return crc;
|
||||
-}
|
||||
-#endif
|
||||
-
|
||||
size_t resize_packet(struct dns_header *header, size_t plen, unsigned char *pheader, size_t hlen)
|
||||
{
|
||||
unsigned char *ansp = skip_questions(header, plen);
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,61 +0,0 @@
|
||||
From e9db3fdf55cdf3175d96db90313c33f848985960 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Fri, 4 Dec 2020 18:35:11 +0000
|
||||
Subject: [PATCH] Small cleanups in frec_src datastucture handling.
|
||||
|
||||
---
|
||||
src/forward.c | 22 +++++++++++++---------
|
||||
1 file changed, 13 insertions(+), 9 deletions(-)
|
||||
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 25ad8b1..c496f86 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -364,7 +364,10 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
if (!daemon->free_frec_src &&
|
||||
daemon->frec_src_count < daemon->ftabsize &&
|
||||
(daemon->free_frec_src = whine_malloc(sizeof(struct frec_src))))
|
||||
- daemon->frec_src_count++;
|
||||
+ {
|
||||
+ daemon->frec_src_count++;
|
||||
+ daemon->free_frec_src->next = NULL;
|
||||
+ }
|
||||
|
||||
/* If we've been spammed with many duplicates, just drop the query. */
|
||||
if (daemon->free_frec_src)
|
||||
@@ -401,6 +404,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
forward->frec_src.orig_id = ntohs(header->id);
|
||||
forward->frec_src.dest = *dst_addr;
|
||||
forward->frec_src.iface = dst_iface;
|
||||
+ forward->frec_src.next = NULL;
|
||||
forward->new_id = get_id();
|
||||
forward->fd = udpfd;
|
||||
memcpy(forward->hash, hash, HASH_SIZE);
|
||||
@@ -2262,16 +2266,16 @@ void free_rfd(struct randfd *rfd)
|
||||
|
||||
static void free_frec(struct frec *f)
|
||||
{
|
||||
- struct frec_src *src, *tmp;
|
||||
-
|
||||
- /* add back to freelist of not the record builtin to every frec. */
|
||||
- for (src = f->frec_src.next; src; src = tmp)
|
||||
+ struct frec_src *last;
|
||||
+
|
||||
+ /* add back to freelist if not the record builtin to every frec. */
|
||||
+ for (last = f->frec_src.next; last && last->next; last = last->next) ;
|
||||
+ if (last)
|
||||
{
|
||||
- tmp = src->next;
|
||||
- src->next = daemon->free_frec_src;
|
||||
- daemon->free_frec_src = src;
|
||||
+ last->next = daemon->free_frec_src;
|
||||
+ daemon->free_frec_src = f->frec_src.next;
|
||||
}
|
||||
-
|
||||
+
|
||||
f->frec_src.next = NULL;
|
||||
free_rfd(f->rfd4);
|
||||
f->rfd4 = NULL;
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,327 +0,0 @@
|
||||
From 7d98347aeeb575a022ffae630ee02da215b6f37b Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Wed, 18 Nov 2020 18:34:55 +0000
|
||||
Subject: [PATCH 4/4] Handle multiple identical near simultaneous DNS queries
|
||||
better.
|
||||
|
||||
Previously, such queries would all be forwarded
|
||||
independently. This is, in theory, inefficent but in practise
|
||||
not a problem, _except_ that is means that an answer for any
|
||||
of the forwarded queries will be accepted and cached.
|
||||
An attacker can send a query multiple times, and for each repeat,
|
||||
another {port, ID} becomes capable of accepting the answer he is
|
||||
sending in the blind, to random IDs and ports. The chance of a
|
||||
succesful attack is therefore multiplied by the number of repeats
|
||||
of the query. The new behaviour detects repeated queries and
|
||||
merely stores the clients sending repeats so that when the
|
||||
first query completes, the answer can be sent to all the
|
||||
clients who asked. Refer: CERT VU#434904.
|
||||
---
|
||||
src/dnsmasq.h | 19 ++++---
|
||||
src/forward.c | 141 ++++++++++++++++++++++++++++++++++++++++++--------
|
||||
2 files changed, 132 insertions(+), 28 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index f31503d..6744e2b 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -613,21 +613,26 @@ struct hostsfile {
|
||||
#define FREC_DO_QUESTION 64
|
||||
#define FREC_ADDED_PHEADER 128
|
||||
#define FREC_TEST_PKTSZ 256
|
||||
-#define FREC_HAS_EXTRADATA 512
|
||||
+#define FREC_HAS_EXTRADATA 512
|
||||
+#define FREC_HAS_PHEADER 1024
|
||||
|
||||
#define HASH_SIZE 32 /* SHA-256 digest size */
|
||||
|
||||
struct frec {
|
||||
- union mysockaddr source;
|
||||
- struct all_addr dest;
|
||||
+ struct frec_src {
|
||||
+ union mysockaddr source;
|
||||
+ struct all_addr dest;
|
||||
+ unsigned int iface, log_id;
|
||||
+ unsigned short orig_id;
|
||||
+ struct frec_src *next;
|
||||
+ } frec_src;
|
||||
struct server *sentto; /* NULL means free */
|
||||
struct randfd *rfd4;
|
||||
#ifdef HAVE_IPV6
|
||||
struct randfd *rfd6;
|
||||
#endif
|
||||
- unsigned int iface;
|
||||
- unsigned short orig_id, new_id;
|
||||
- int log_id, fd, forwardall, flags;
|
||||
+ unsigned short new_id;
|
||||
+ int fd, forwardall, flags;
|
||||
time_t time;
|
||||
unsigned char *hash[HASH_SIZE];
|
||||
#ifdef HAVE_DNSSEC
|
||||
@@ -1033,6 +1038,8 @@ extern struct daemon {
|
||||
#endif
|
||||
unsigned int local_answer, queries_forwarded, auth_answer;
|
||||
struct frec *frec_list;
|
||||
+ struct frec_src *free_frec_src;
|
||||
+ int frec_src_count;
|
||||
struct serverfd *sfds;
|
||||
struct irec *interfaces;
|
||||
struct listener *listeners;
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 7ffcaf7..db378a5 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -20,6 +20,8 @@ static struct frec *lookup_frec(unsigned short id, int fd, int family, void *has
|
||||
static struct frec *lookup_frec_by_sender(unsigned short id,
|
||||
union mysockaddr *addr,
|
||||
void *hash);
|
||||
+static struct frec *lookup_frec_by_query(void *hash, unsigned int flags);
|
||||
+
|
||||
static unsigned short get_id(void);
|
||||
static void free_frec(struct frec *f);
|
||||
|
||||
@@ -238,15 +240,28 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
int type = SERV_DO_DNSSEC, norebind = 0;
|
||||
struct all_addr *addrp = NULL;
|
||||
unsigned int flags = 0;
|
||||
+ unsigned int fwd_flags = 0;
|
||||
struct server *start = NULL;
|
||||
void *hash = hash_questions(header, plen, daemon->namebuff);
|
||||
#ifdef HAVE_DNSSEC
|
||||
int do_dnssec = 0;
|
||||
#endif
|
||||
- unsigned int gotname = extract_request(header, plen, daemon->namebuff, NULL);
|
||||
+ unsigned int gotname = extract_request(header, plen, daemon->namebuff, NULL);
|
||||
+ unsigned char *oph = find_pseudoheader(header, plen, NULL, NULL, NULL, NULL);
|
||||
|
||||
(void)do_bit;
|
||||
-
|
||||
+
|
||||
+ if (header->hb4 & HB4_CD)
|
||||
+ fwd_flags |= FREC_CHECKING_DISABLED;
|
||||
+ if (ad_reqd)
|
||||
+ fwd_flags |= FREC_AD_QUESTION;
|
||||
+ if (oph)
|
||||
+ fwd_flags |= FREC_HAS_PHEADER;
|
||||
+#ifdef HAVE_DNSSEC
|
||||
+ if (do_bit)
|
||||
+ fwd_flags |= FREC_DO_QUESTION;
|
||||
+#endif
|
||||
+
|
||||
/* may be no servers available. */
|
||||
if (forward || (forward = lookup_frec_by_sender(ntohs(header->id), udpaddr, hash)))
|
||||
{
|
||||
@@ -322,6 +337,39 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
}
|
||||
else
|
||||
{
|
||||
+ /* Query from new source, but the same query may be in progress
|
||||
+ from another source. If so, just add this client to the
|
||||
+ list that will get the reply.
|
||||
+
|
||||
+ Note that is the EDNS client subnet option is in use, we can't do this,
|
||||
+ as the clients (and therefore query EDNS options) will be different
|
||||
+ for each query. The EDNS subnet code has checks to avoid
|
||||
+ attacks in this case. */
|
||||
+ if (!option_bool(OPT_CLIENT_SUBNET) && (forward = lookup_frec_by_query(hash, fwd_flags)))
|
||||
+ {
|
||||
+ /* Note whine_malloc() zeros memory. */
|
||||
+ if (!daemon->free_frec_src &&
|
||||
+ daemon->frec_src_count < daemon->ftabsize &&
|
||||
+ (daemon->free_frec_src = whine_malloc(sizeof(struct frec_src))))
|
||||
+ daemon->frec_src_count++;
|
||||
+
|
||||
+ /* If we've been spammed with many duplicates, just drop the query. */
|
||||
+ if (daemon->free_frec_src)
|
||||
+ {
|
||||
+ struct frec_src *new = daemon->free_frec_src;
|
||||
+ daemon->free_frec_src = new->next;
|
||||
+ new->next = forward->frec_src.next;
|
||||
+ forward->frec_src.next = new;
|
||||
+ new->orig_id = ntohs(header->id);
|
||||
+ new->source = *udpaddr;
|
||||
+ new->dest = *dst_addr;
|
||||
+ new->log_id = daemon->log_id;
|
||||
+ new->iface = dst_iface;
|
||||
+ }
|
||||
+
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
if (gotname)
|
||||
flags = search_servers(now, &addrp, gotname, daemon->namebuff, &type, &domain, &norebind);
|
||||
|
||||
@@ -329,22 +377,22 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
do_dnssec = type & SERV_DO_DNSSEC;
|
||||
#endif
|
||||
type &= ~SERV_DO_DNSSEC;
|
||||
-
|
||||
+
|
||||
if (daemon->servers && !flags)
|
||||
forward = get_new_frec(now, NULL, 0);
|
||||
/* table full - flags == 0, return REFUSED */
|
||||
|
||||
if (forward)
|
||||
{
|
||||
- forward->source = *udpaddr;
|
||||
- forward->dest = *dst_addr;
|
||||
- forward->iface = dst_iface;
|
||||
- forward->orig_id = ntohs(header->id);
|
||||
+ forward->frec_src.source = *udpaddr;
|
||||
+ forward->frec_src.orig_id = ntohs(header->id);
|
||||
+ forward->frec_src.dest = *dst_addr;
|
||||
+ forward->frec_src.iface = dst_iface;
|
||||
forward->new_id = get_id();
|
||||
forward->fd = udpfd;
|
||||
memcpy(forward->hash, hash, HASH_SIZE);
|
||||
forward->forwardall = 0;
|
||||
- forward->flags = 0;
|
||||
+ forward->flags = fwd_flags;
|
||||
if (norebind)
|
||||
forward->flags |= FREC_NOREBIND;
|
||||
if (header->hb4 & HB4_CD)
|
||||
@@ -400,9 +448,9 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
unsigned char *pheader;
|
||||
|
||||
/* If a query is retried, use the log_id for the retry when logging the answer. */
|
||||
- forward->log_id = daemon->log_id;
|
||||
+ forward->frec_src.log_id = daemon->log_id;
|
||||
|
||||
- plen = add_edns0_config(header, plen, ((unsigned char *)header) + PACKETSZ, &forward->source, now, &subnet);
|
||||
+ plen = add_edns0_config(header, plen, ((unsigned char *)header) + PACKETSZ, &forward->frec_src.source, now, &subnet);
|
||||
|
||||
if (subnet)
|
||||
forward->flags |= FREC_HAS_SUBNET;
|
||||
@@ -539,7 +587,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
return 1;
|
||||
|
||||
/* could not send on, prepare to return */
|
||||
- header->id = htons(forward->orig_id);
|
||||
+ header->id = htons(forward->frec_src.orig_id);
|
||||
free_frec(forward); /* cancel */
|
||||
}
|
||||
|
||||
@@ -774,8 +822,8 @@ void reply_query(int fd, int family, time_t now)
|
||||
|
||||
/* log_query gets called indirectly all over the place, so
|
||||
pass these in global variables - sorry. */
|
||||
- daemon->log_display_id = forward->log_id;
|
||||
- daemon->log_source_addr = &forward->source;
|
||||
+ daemon->log_display_id = forward->frec_src.log_id;
|
||||
+ daemon->log_source_addr = &forward->frec_src.source;
|
||||
|
||||
if (daemon->ignore_addr && RCODE(header) == NOERROR &&
|
||||
check_for_ignored_address(header, n, daemon->ignore_addr))
|
||||
@@ -978,6 +1026,7 @@ void reply_query(int fd, int family, time_t now)
|
||||
#ifdef HAVE_IPV6
|
||||
new->rfd6 = NULL;
|
||||
#endif
|
||||
+ new->frec_src.next = NULL;
|
||||
new->flags &= ~(FREC_DNSKEY_QUERY | FREC_DS_QUERY);
|
||||
|
||||
new->dependent = forward; /* to find query awaiting new one. */
|
||||
@@ -1099,9 +1148,11 @@ void reply_query(int fd, int family, time_t now)
|
||||
|
||||
if ((nn = process_reply(header, now, forward->sentto, (size_t)n, check_rebind, no_cache_dnssec, cache_secure, bogusanswer,
|
||||
forward->flags & FREC_AD_QUESTION, forward->flags & FREC_DO_QUESTION,
|
||||
- forward->flags & FREC_ADDED_PHEADER, forward->flags & FREC_HAS_SUBNET, &forward->source)))
|
||||
+ forward->flags & FREC_ADDED_PHEADER, forward->flags & FREC_HAS_SUBNET, &forward->frec_src.source)))
|
||||
{
|
||||
- header->id = htons(forward->orig_id);
|
||||
+ struct frec_src *src;
|
||||
+
|
||||
+ header->id = htons(forward->frec_src.orig_id);
|
||||
header->hb4 |= HB4_RA; /* recursion if available */
|
||||
#ifdef HAVE_DNSSEC
|
||||
/* We added an EDNSO header for the purpose of getting DNSSEC RRs, and set the value of the UDP payload size
|
||||
@@ -1116,9 +1167,22 @@ void reply_query(int fd, int family, time_t now)
|
||||
nn = resize_packet(header, nn, NULL, 0);
|
||||
}
|
||||
#endif
|
||||
- send_from(forward->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
|
||||
- &forward->source, &forward->dest, forward->iface);
|
||||
+ for (src = &forward->frec_src; src; src = src->next)
|
||||
+ {
|
||||
+ header->id = htons(src->orig_id);
|
||||
+
|
||||
+ send_from(forward->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
|
||||
+ &src->source, &src->dest, src->iface);
|
||||
+
|
||||
+ if (option_bool(OPT_EXTRALOG) && src != &forward->frec_src)
|
||||
+ {
|
||||
+ daemon->log_display_id = src->log_id;
|
||||
+ daemon->log_source_addr = &src->source;
|
||||
+ log_query(F_UPSTREAM, "query", NULL, "duplicate");
|
||||
+ }
|
||||
+ }
|
||||
}
|
||||
+
|
||||
free_frec(forward); /* cancel */
|
||||
}
|
||||
}
|
||||
@@ -2053,6 +2117,17 @@ void free_rfd(struct randfd *rfd)
|
||||
|
||||
static void free_frec(struct frec *f)
|
||||
{
|
||||
+ struct frec_src *src, *tmp;
|
||||
+
|
||||
+ /* add back to freelist of not the record builtin to every frec. */
|
||||
+ for (src = f->frec_src.next; src; src = tmp)
|
||||
+ {
|
||||
+ tmp = src->next;
|
||||
+ src->next = daemon->free_frec_src;
|
||||
+ daemon->free_frec_src = src;
|
||||
+ }
|
||||
+
|
||||
+ f->frec_src.next = NULL;
|
||||
free_rfd(f->rfd4);
|
||||
f->rfd4 = NULL;
|
||||
f->sentto = NULL;
|
||||
@@ -2196,17 +2271,39 @@ static struct frec *lookup_frec_by_sender(unsigned short id,
|
||||
void *hash)
|
||||
{
|
||||
struct frec *f;
|
||||
+ struct frec_src *src;
|
||||
+
|
||||
+ for (f = daemon->frec_list; f; f = f->next)
|
||||
+ if (f->sentto &&
|
||||
+ !(f->flags & (FREC_DNSKEY_QUERY | FREC_DS_QUERY)) &&
|
||||
+ memcmp(hash, f->hash, HASH_SIZE) == 0)
|
||||
+ for (src = &f->frec_src; src; src = src->next)
|
||||
+ if (src->orig_id == id &&
|
||||
+ sockaddr_isequal(&src->source, addr))
|
||||
+ return f;
|
||||
+
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+static struct frec *lookup_frec_by_query(void *hash, unsigned int flags)
|
||||
+{
|
||||
+ struct frec *f;
|
||||
+
|
||||
+ /* FREC_DNSKEY and FREC_DS_QUERY are never set in flags, so the test below
|
||||
+ ensures that no frec created for internal DNSSEC query can be returned here. */
|
||||
+
|
||||
+#define FLAGMASK (FREC_CHECKING_DISABLED | FREC_AD_QUESTION | FREC_DO_QUESTION \
|
||||
+ | FREC_HAS_PHEADER | FREC_DNSKEY_QUERY | FREC_DS_QUERY)
|
||||
|
||||
for(f = daemon->frec_list; f; f = f->next)
|
||||
if (f->sentto &&
|
||||
- f->orig_id == id &&
|
||||
- memcmp(hash, f->hash, HASH_SIZE) == 0 &&
|
||||
- sockaddr_isequal(&f->source, addr))
|
||||
+ (f->flags & FLAGMASK) == flags &&
|
||||
+ memcmp(hash, f->hash, HASH_SIZE) == 0)
|
||||
return f;
|
||||
-
|
||||
+
|
||||
return NULL;
|
||||
}
|
||||
-
|
||||
+
|
||||
/* Send query packet again, if we can. */
|
||||
void resend_query()
|
||||
{
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,79 +0,0 @@
|
||||
From 4348c43be45d20aba87ee5564ecdde10aff7e5e7 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Fri, 22 Jan 2021 16:49:12 +0000
|
||||
Subject: [PATCH] Move fd into frec_src, fixes
|
||||
15b60ddf935a531269bb8c68198de012a4967156
|
||||
|
||||
If identical queries from IPv4 and IPv6 sources are combined by the
|
||||
new code added in 15b60ddf935a531269bb8c68198de012a4967156 then replies
|
||||
can end up being sent via the wrong family of socket. The ->fd
|
||||
should be per query, not per-question.
|
||||
|
||||
In bind-interfaces mode, this could also result in replies being sent
|
||||
via the wrong socket even when IPv4/IPV6 issues are not in play.
|
||||
|
||||
(cherry picked from commit 04490bf622ac84891aad6f2dd2edf83725decdee)
|
||||
|
||||
Fix for 12af2b171de0d678d98583e2190789e544440e02
|
||||
|
||||
(cherry picked from commit 3f535da79e7a42104543ef5c7b5fa2bed819a78b)
|
||||
---
|
||||
src/dnsmasq.h | 3 ++-
|
||||
src/forward.c | 5 +++--
|
||||
2 files changed, 5 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index f3bbb4e..e7e1693 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -632,6 +632,7 @@ struct frec {
|
||||
union mysockaddr source;
|
||||
struct all_addr dest;
|
||||
unsigned int iface, log_id;
|
||||
+ int fd;
|
||||
unsigned short orig_id;
|
||||
struct frec_src *next;
|
||||
} frec_src;
|
||||
@@ -641,7 +642,7 @@ struct frec {
|
||||
struct randfd *rfd6;
|
||||
#endif
|
||||
unsigned short new_id;
|
||||
- int fd, forwardall, flags;
|
||||
+ int forwardall, flags;
|
||||
time_t time;
|
||||
unsigned char *hash[HASH_SIZE];
|
||||
#ifdef HAVE_DNSSEC
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 9d249c0..82dd850 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -368,6 +368,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
new->dest = *dst_addr;
|
||||
new->log_id = daemon->log_id;
|
||||
new->iface = dst_iface;
|
||||
+ new->fd = udpfd;
|
||||
}
|
||||
|
||||
return 1;
|
||||
@@ -392,8 +393,8 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
forward->frec_src.dest = *dst_addr;
|
||||
forward->frec_src.iface = dst_iface;
|
||||
forward->frec_src.next = NULL;
|
||||
+ forward->frec_src.fd = udpfd;
|
||||
forward->new_id = get_id();
|
||||
- forward->fd = udpfd;
|
||||
memcpy(forward->hash, hash, HASH_SIZE);
|
||||
forward->forwardall = 0;
|
||||
forward->flags = fwd_flags;
|
||||
@@ -1175,7 +1176,7 @@ void reply_query(int fd, int family, time_t now)
|
||||
{
|
||||
header->id = htons(src->orig_id);
|
||||
|
||||
- send_from(forward->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
|
||||
+ send_from(src->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
|
||||
&src->source, &src->dest, src->iface);
|
||||
|
||||
if (option_bool(OPT_EXTRALOG) && src != &forward->frec_src)
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,49 +0,0 @@
|
||||
From dcb4fa04548ab2364f662b735be86e275bd50745 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Fri, 19 Jul 2019 14:00:08 +0200
|
||||
Subject: [PATCH] Remove warnings in coverity
|
||||
|
||||
Change in dnsmasq should never occur, because ent_pw would not change.
|
||||
But keep Coverity happy and prevent logic error. Second change avoids
|
||||
warning from compiler.
|
||||
---
|
||||
src/dnsmasq.c | 9 ++++++++-
|
||||
src/option.c | 2 +-
|
||||
2 files changed, 9 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.c b/src/dnsmasq.c
|
||||
index ce44809..2984f55 100644
|
||||
--- a/src/dnsmasq.c
|
||||
+++ b/src/dnsmasq.c
|
||||
@@ -608,7 +608,14 @@ int main (int argc, char **argv)
|
||||
|
||||
if (ent_pw && ent_pw->pw_uid != 0)
|
||||
{
|
||||
-#if defined(HAVE_LINUX_NETWORK)
|
||||
+#if defined(HAVE_LINUX_NETWORK)
|
||||
+ if (!hdr || !data)
|
||||
+ {
|
||||
+ /* Just failsafe for logic errors */
|
||||
+ send_event(err_pipe[1], EVENT_CAP_ERR, ENOMEM, NULL);
|
||||
+ _exit(0);
|
||||
+ }
|
||||
+
|
||||
/* On linux, we keep CAP_NETADMIN (for ARP-injection) and
|
||||
CAP_NET_RAW (for icmp) if we're doing dhcp. If we have yet to bind
|
||||
ports because of DAD, or we're doing it dynamically,
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index 9768efb..b12183b 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -4255,7 +4255,7 @@ err:
|
||||
struct name_list *nl;
|
||||
if (!canon)
|
||||
{
|
||||
- struct name_list *tmp = new->names, *next;
|
||||
+ struct name_list *tmp, *next;
|
||||
for (tmp = new->names; tmp; tmp = next)
|
||||
{
|
||||
next = tmp->next;
|
||||
--
|
||||
2.20.1
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,95 +0,0 @@
|
||||
From 10642f9fb350e118d88e995b8dfa2badc7be1c30 Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Wed, 11 Dec 2019 13:41:57 +0100
|
||||
Subject: [PATCH] Restore ability to answer non-recursive requests
|
||||
|
||||
Instead, check only local configured entries are answered without
|
||||
rdbit set. All cached replies are still denied, but locally configured
|
||||
names are available with both recursion and without it.
|
||||
---
|
||||
src/rfc1035.c | 27 ++++++++++++++-------------
|
||||
1 file changed, 14 insertions(+), 13 deletions(-)
|
||||
|
||||
diff --git a/src/rfc1035.c b/src/rfc1035.c
|
||||
index 6b3bb27..6a7c154 100644
|
||||
--- a/src/rfc1035.c
|
||||
+++ b/src/rfc1035.c
|
||||
@@ -1262,7 +1262,11 @@ static unsigned long crec_ttl(struct crec *crecp, time_t now)
|
||||
else
|
||||
return daemon->max_ttl;
|
||||
}
|
||||
-
|
||||
+
|
||||
+static int cache_validated(const struct crec *crecp)
|
||||
+{
|
||||
+ return (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK));
|
||||
+}
|
||||
|
||||
/* return zero if we can't answer from cache, or packet size if we can */
|
||||
size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
@@ -1281,6 +1285,7 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
int nxdomain = 0, auth = 1, trunc = 0, sec_data = 1;
|
||||
struct mx_srv_record *rec;
|
||||
size_t len;
|
||||
+ int rd_bit;
|
||||
// Make sure we do not underflow here too.
|
||||
if (qlen > (limit - ((char *)header))) return 0;
|
||||
|
||||
@@ -1290,10 +1295,8 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
OPCODE(header) != QUERY )
|
||||
return 0;
|
||||
|
||||
- /* always servfail queries with RD unset, to avoid cache snooping. */
|
||||
- if (!(header->hb3 & HB3_RD))
|
||||
- return setup_reply(header, qlen, NULL, F_SERVFAIL, 0);
|
||||
-
|
||||
+ rd_bit = (header->hb3 & HB3_RD);
|
||||
+
|
||||
/* Don't return AD set if checking disabled. */
|
||||
if (header->hb4 & HB4_CD)
|
||||
sec_data = 0;
|
||||
@@ -1458,9 +1461,8 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
/* Don't use cache when DNSSEC data required, unless we know that
|
||||
the zone is unsigned, which implies that we're doing
|
||||
validation. */
|
||||
- if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) ||
|
||||
- !do_bit ||
|
||||
- (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK)))
|
||||
+ if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) ||
|
||||
+ (rd_bit && (!do_bit || cache_validated(crecp)) ))
|
||||
{
|
||||
do
|
||||
{
|
||||
@@ -1657,8 +1659,7 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
|
||||
/* If the client asked for DNSSEC don't use cached data. */
|
||||
if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) ||
|
||||
- !do_bit ||
|
||||
- (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK)))
|
||||
+ (rd_bit && (!do_bit || cache_validated(crecp)) ))
|
||||
do
|
||||
{
|
||||
/* don't answer wildcard queries with data not from /etc/hosts
|
||||
@@ -1741,8 +1742,8 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
if (qtype == T_CNAME || qtype == T_ANY)
|
||||
{
|
||||
if ((crecp = cache_find_by_name(NULL, name, now, F_CNAME | (dryrun ? F_NO_RR : 0))) &&
|
||||
- (qtype == T_CNAME || (crecp->flags & F_CONFIG)) &&
|
||||
- ((crecp->flags & F_CONFIG) || !do_bit || (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK))))
|
||||
+ ((qtype == T_CNAME && rd_bit) || (crecp->flags & F_CONFIG)) &&
|
||||
+ ((crecp->flags & F_CONFIG) || (!do_bit || cache_validated(crecp))))
|
||||
{
|
||||
if (!(crecp->flags & F_DNSSECOK))
|
||||
sec_data = 0;
|
||||
@@ -1780,7 +1781,7 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
}
|
||||
}
|
||||
|
||||
- if (!found && (option_bool(OPT_SELFMX) || option_bool(OPT_LOCALMX)) &&
|
||||
+ if (!found && (option_bool(OPT_SELFMX) || option_bool(OPT_LOCALMX)) &&
|
||||
cache_find_by_name(NULL, name, now, F_HOSTS | F_DHCP | F_NO_RR))
|
||||
{
|
||||
ans = 1;
|
||||
--
|
||||
2.21.0
|
||||
|
||||
@ -1,48 +0,0 @@
|
||||
From 7e3250d52921b5f75bdbe0b794514bb78a209969 Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Wed, 3 Jul 2019 17:02:16 +0200
|
||||
Subject: [PATCH 2/5] Compare address and interface index for allowed interface
|
||||
|
||||
If interface is recreated with the same address but different index, it
|
||||
would not change any other parameter.
|
||||
|
||||
Test also address family on incoming TCP queries.
|
||||
---
|
||||
src/dnsmasq.c | 3 ++-
|
||||
src/network.c | 3 ++-
|
||||
2 files changed, 4 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.c b/src/dnsmasq.c
|
||||
index f3d2671..7812be8 100644
|
||||
--- a/src/dnsmasq.c
|
||||
+++ b/src/dnsmasq.c
|
||||
@@ -1667,7 +1667,8 @@ static void check_dns_listeners(time_t now)
|
||||
#endif
|
||||
|
||||
for (iface = daemon->interfaces; iface; iface = iface->next)
|
||||
- if (iface->index == if_index)
|
||||
+ if (iface->index == if_index &&
|
||||
+ iface->addr.sa.sa_family == tcp_addr.sa.sa_family)
|
||||
break;
|
||||
|
||||
if (!iface && !loopback_exception(listener->tcpfd, tcp_addr.sa.sa_family, &addr, intr_name))
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index fd90288..f247811 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -404,10 +404,11 @@ static int iface_allowed(struct iface_param *param, int if_index, char *label,
|
||||
/* check whether the interface IP has been added already
|
||||
we call this routine multiple times. */
|
||||
for (iface = daemon->interfaces; iface; iface = iface->next)
|
||||
- if (sockaddr_isequal(&iface->addr, addr))
|
||||
+ if (sockaddr_isequal(&iface->addr, addr) && iface->index == if_index)
|
||||
{
|
||||
iface->dad = !!(iface_flags & IFACE_TENTATIVE);
|
||||
iface->found = 1; /* for garbage collection */
|
||||
+ iface->netmask = netmask;
|
||||
return 1;
|
||||
}
|
||||
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,188 +0,0 @@
|
||||
From 11ab42e63f9089c4c14a391f30175d4c2d071e99 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Mon, 15 Jul 2019 17:13:12 +0200
|
||||
Subject: [PATCH 4/5] Handle listening on duplicate addresses
|
||||
|
||||
Save listening address into listener. Use it to find existing listeners
|
||||
before creating new one. If it exist, increase just used counter.
|
||||
Release only listeners not already used.
|
||||
|
||||
Duplicates family in listener.
|
||||
---
|
||||
src/dnsmasq.h | 3 +-
|
||||
src/network.c | 115 ++++++++++++++++++++++++++++++++++++--------------
|
||||
2 files changed, 85 insertions(+), 33 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 89d138a..3b3f6ef 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -552,7 +552,8 @@ struct irec {
|
||||
};
|
||||
|
||||
struct listener {
|
||||
- int fd, tcpfd, tftpfd, family;
|
||||
+ int fd, tcpfd, tftpfd, family, used;
|
||||
+ union mysockaddr addr;
|
||||
struct irec *iface; /* only sometimes valid for non-wildcard */
|
||||
struct listener *next;
|
||||
};
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index d6d4b01..4bbd810 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -577,6 +577,56 @@ static void clean_interfaces()
|
||||
}
|
||||
}
|
||||
|
||||
+/** Release listener if no other interface needs it.
|
||||
+ *
|
||||
+ * @return 1 if released, 0 if still required
|
||||
+ */
|
||||
+static int release_listener(struct listener *l)
|
||||
+{
|
||||
+ if (l->used > 1)
|
||||
+ {
|
||||
+ struct irec *iface;
|
||||
+ for (iface = daemon->interfaces; iface; iface = iface->next)
|
||||
+ if (iface->done && sockaddr_isequal(&l->addr, &iface->addr))
|
||||
+ {
|
||||
+ if (iface->found)
|
||||
+ {
|
||||
+ /* update listener to point to active interface instead */
|
||||
+ if (!l->iface->found)
|
||||
+ l->iface = iface;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ l->used--;
|
||||
+ iface->done = 0;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ /* Someone is still using this listener, skip its deletion */
|
||||
+ if (l->used > 0)
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
+ if (l->iface->done)
|
||||
+ {
|
||||
+ (void)prettyprint_addr(&l->iface->addr, daemon->addrbuff);
|
||||
+ my_syslog(LOG_DEBUG, _("stopped listening on %s(#%d): %s"),
|
||||
+ l->iface->name, l->iface->index, daemon->addrbuff);
|
||||
+ /* In case it ever returns */
|
||||
+ l->iface->done = 0;
|
||||
+ }
|
||||
+
|
||||
+ if (l->fd != -1)
|
||||
+ close(l->fd);
|
||||
+ if (l->tcpfd != -1)
|
||||
+ close(l->tcpfd);
|
||||
+ if (l->tftpfd != -1)
|
||||
+ close(l->tftpfd);
|
||||
+
|
||||
+ free(l);
|
||||
+ return 1;
|
||||
+}
|
||||
+
|
||||
int enumerate_interfaces(int reset)
|
||||
{
|
||||
static struct addrlist *spare = NULL;
|
||||
@@ -684,29 +734,10 @@ int enumerate_interfaces(int reset)
|
||||
|
||||
if (!l->iface || l->iface->found)
|
||||
up = &l->next;
|
||||
- else
|
||||
+ else if (release_listener(l))
|
||||
{
|
||||
- *up = l->next;
|
||||
- if (l->iface->done)
|
||||
- {
|
||||
- iface = l->iface;
|
||||
- (void)prettyprint_addr(&iface->addr, daemon->addrbuff);
|
||||
- my_syslog(LOG_DEBUG, _("stopped listening on %s(#%d): %s"),
|
||||
- iface->name, iface->index, daemon->addrbuff);
|
||||
- }
|
||||
-
|
||||
- /* In case it ever returns */
|
||||
- l->iface->done = 0;
|
||||
-
|
||||
- if (l->fd != -1)
|
||||
- close(l->fd);
|
||||
- if (l->tcpfd != -1)
|
||||
- close(l->tcpfd);
|
||||
- if (l->tftpfd != -1)
|
||||
- close(l->tftpfd);
|
||||
-
|
||||
- free(l);
|
||||
- freed = 1;
|
||||
+ *up = tmp;
|
||||
+ freed = 1;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -959,7 +990,9 @@ static struct listener *create_listeners(union mysockaddr *addr, int do_tftp, in
|
||||
l->family = addr->sa.sa_family;
|
||||
l->fd = fd;
|
||||
l->tcpfd = tcpfd;
|
||||
- l->tftpfd = tftpfd;
|
||||
+ l->tftpfd = tftpfd;
|
||||
+ l->addr = *addr;
|
||||
+ l->used = 1;
|
||||
l->iface = NULL;
|
||||
}
|
||||
|
||||
@@ -1000,23 +1033,41 @@ void create_wildcard_listeners(void)
|
||||
daemon->listeners = l;
|
||||
}
|
||||
|
||||
+static struct listener *find_listener(union mysockaddr *addr)
|
||||
+{
|
||||
+ struct listener *l;
|
||||
+ for (l = daemon->listeners; l; l = l->next)
|
||||
+ if (sockaddr_isequal(&l->addr, addr))
|
||||
+ return l;
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
void create_bound_listeners(int dienow)
|
||||
{
|
||||
struct listener *new;
|
||||
struct irec *iface;
|
||||
struct iname *if_tmp;
|
||||
+ struct listener *existing;
|
||||
|
||||
for (iface = daemon->interfaces; iface; iface = iface->next)
|
||||
- if (!iface->done && !iface->dad && iface->found &&
|
||||
- (new = create_listeners(&iface->addr, iface->tftp_ok, dienow)))
|
||||
+ if (!iface->done && !iface->dad && iface->found)
|
||||
{
|
||||
- new->iface = iface;
|
||||
- new->next = daemon->listeners;
|
||||
- daemon->listeners = new;
|
||||
- iface->done = 1;
|
||||
- (void)prettyprint_addr(&iface->addr, daemon->addrbuff);
|
||||
- my_syslog(LOG_DEBUG, _("listening on %s(#%d): %s"),
|
||||
- iface->name, iface->index, daemon->addrbuff);
|
||||
+ existing = find_listener(&iface->addr);
|
||||
+ if (existing)
|
||||
+ {
|
||||
+ iface->done = 1;
|
||||
+ existing->used++; /* increase usage counter */
|
||||
+ }
|
||||
+ else if ((new = create_listeners(&iface->addr, iface->tftp_ok, dienow)))
|
||||
+ {
|
||||
+ new->iface = iface;
|
||||
+ new->next = daemon->listeners;
|
||||
+ daemon->listeners = new;
|
||||
+ iface->done = 1;
|
||||
+ (void)prettyprint_addr(&iface->addr, daemon->addrbuff);
|
||||
+ my_syslog(LOG_DEBUG, _("listening on %s(#%d): %s"),
|
||||
+ iface->name, iface->index, daemon->addrbuff);
|
||||
+ }
|
||||
}
|
||||
|
||||
/* Check for --listen-address options that haven't been used because there's
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,22 +0,0 @@
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Wed, 14 Aug 2019 20:52:50 +0000 (+0100)
|
||||
Subject: Fix breakage of dhcp_lease_time utility.
|
||||
X-Git-Url: http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff_plain;h=225accd235a09413ca253e710d7d691a3475c523
|
||||
|
||||
Fix breakage of dhcp_lease_time utility.
|
||||
---
|
||||
|
||||
diff --git a/contrib/lease-tools/dhcp_lease_time.c b/contrib/lease-tools/dhcp_lease_time.c
|
||||
index 697d627..91edbfa 100644
|
||||
--- a/contrib/lease-tools/dhcp_lease_time.c
|
||||
+++ b/contrib/lease-tools/dhcp_lease_time.c
|
||||
@@ -83,7 +83,7 @@ static unsigned char *option_find1(unsigned char *p, unsigned char *end, int opt
|
||||
if (p >= end - 2)
|
||||
return NULL; /* malformed packet */
|
||||
opt_len = option_len(p);
|
||||
- if (end - p >= (2 + opt_len))
|
||||
+ if (end - p < (2 + opt_len))
|
||||
return NULL; /* malformed packet */
|
||||
if (*p == opt && opt_len >= minsize)
|
||||
return p;
|
||||
|
||||
@ -1,34 +0,0 @@
|
||||
From 8fda4b4620ca2b23152ca805d14c7cde1083fe31 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Tue, 1 Oct 2019 16:08:28 +0200
|
||||
Subject: [PATCH] Report error on dhcp_release
|
||||
|
||||
If no IPv4 address is present on given interface, the tool would not
|
||||
send any request. It would not report any error at the same time. Report
|
||||
error if request send failed.
|
||||
|
||||
Signed-off-by: Petr Mensik <pemensik@redhat.com>
|
||||
---
|
||||
contrib/lease-tools/dhcp_release.c | 6 +++++-
|
||||
1 file changed, 5 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/contrib/lease-tools/dhcp_release.c b/contrib/lease-tools/dhcp_release.c
|
||||
index c866cd9..30e77c6 100644
|
||||
--- a/contrib/lease-tools/dhcp_release.c
|
||||
+++ b/contrib/lease-tools/dhcp_release.c
|
||||
@@ -223,7 +223,11 @@ static struct in_addr find_interface(struct in_addr client, int fd, unsigned int
|
||||
ifr->ifr_addr.sa_family = AF_INET;
|
||||
if (ioctl(ifrfd, SIOCGIFADDR, ifr) != -1)
|
||||
return ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr;
|
||||
- exit(0);
|
||||
+ else
|
||||
+ {
|
||||
+ fprintf(stderr, "error: local IPv4 address not found\n");
|
||||
+ exit(1);
|
||||
+ }
|
||||
}
|
||||
else if (h->nlmsg_type == RTM_NEWADDR)
|
||||
{
|
||||
--
|
||||
2.20.1
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From 4c5cbdfb82e668268a5f3713fe119fb077667c8e Mon Sep 17 00:00:00 2001
|
||||
From b027daaa8ef168122a712e5e4ec71642964d8f4d Mon Sep 17 00:00:00 2001
|
||||
From: rpm-build <rpm-build>
|
||||
Date: Mon, 22 Aug 2022 21:59:42 +0200
|
||||
Subject: [PATCH] Ensure also server_domains_cleanup is called always
|
||||
@ -17,10 +17,10 @@ Caused unending loop in forward_query function, rhbz#2106361.
|
||||
1 file changed, 25 insertions(+), 24 deletions(-)
|
||||
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index 4d140bb..96668fb 100644
|
||||
index 1fa81ff..cf2f2e2 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -1402,10 +1402,35 @@ void mark_servers(int flag)
|
||||
@@ -1511,10 +1511,35 @@ void mark_servers(int flag)
|
||||
}
|
||||
}
|
||||
|
||||
@ -56,11 +56,11 @@ index 4d140bb..96668fb 100644
|
||||
/* unlink and free anything still marked. */
|
||||
for (serv = daemon->servers, up = &daemon->servers; serv; serv = tmp)
|
||||
{
|
||||
@@ -1428,29 +1453,6 @@ void cleanup_servers(void)
|
||||
@@ -1537,29 +1562,6 @@ void cleanup_servers(void)
|
||||
#endif
|
||||
}
|
||||
|
||||
-void server_domains_cleanup(void)
|
||||
-static void server_domains_cleanup(void)
|
||||
-{
|
||||
- struct server_domain *sd, *tmp, **up;
|
||||
-
|
||||
@ -86,7 +86,7 @@ index 4d140bb..96668fb 100644
|
||||
void add_update_server(int flags,
|
||||
union mysockaddr *addr,
|
||||
union mysockaddr *source_addr,
|
||||
@@ -1739,7 +1741,6 @@ void check_servers(void)
|
||||
@@ -1849,7 +1851,6 @@ void check_servers(void)
|
||||
up = &sfd->next;
|
||||
}
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From b15c92e5d793c9767591dbf8910bf3466aba92ee Mon Sep 17 00:00:00 2001
|
||||
From 5747d7b3dffdcd45d4410bb380e466818734cb27 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Mon, 19 Apr 2021 13:56:23 +0200
|
||||
Subject: [PATCH] Use load-balancing also for --server=/domains/
|
||||
@ -16,16 +16,16 @@ Set pointer to domain record when struct server is created. When
|
||||
searching for domain pointer, use this pointer to make it quick.
|
||||
---
|
||||
src/dnsmasq.h | 18 +++++++--
|
||||
src/forward.c | 54 ++++++++++++++++-----------
|
||||
src/forward.c | 52 ++++++++++++++++----------
|
||||
src/network.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++----
|
||||
src/option.c | 5 +++
|
||||
4 files changed, 147 insertions(+), 31 deletions(-)
|
||||
4 files changed, 146 insertions(+), 30 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 4beef35..27ff86a 100644
|
||||
index 1e21005..b6dcc50 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -531,6 +531,17 @@ struct randfd_list {
|
||||
@@ -559,6 +559,17 @@ struct randfd_list {
|
||||
struct randfd_list *next;
|
||||
};
|
||||
|
||||
@ -43,7 +43,7 @@ index 4beef35..27ff86a 100644
|
||||
struct server {
|
||||
union mysockaddr addr, source_addr;
|
||||
char interface[IF_NAMESIZE+1];
|
||||
@@ -543,6 +554,7 @@ struct server {
|
||||
@@ -571,6 +582,7 @@ struct server {
|
||||
#ifdef HAVE_LOOP
|
||||
u32 uid;
|
||||
#endif
|
||||
@ -51,7 +51,7 @@ index 4beef35..27ff86a 100644
|
||||
struct server *next;
|
||||
};
|
||||
|
||||
@@ -995,6 +1007,7 @@ extern struct daemon {
|
||||
@@ -1053,6 +1065,7 @@ extern struct daemon {
|
||||
struct iname *if_names, *if_addrs, *if_except, *dhcp_except, *auth_peers, *tftp_interfaces;
|
||||
struct bogus_addr *bogus_addr, *ignore_addr;
|
||||
struct server *servers;
|
||||
@ -59,7 +59,7 @@ index 4beef35..27ff86a 100644
|
||||
struct ipsets *ipsets;
|
||||
int log_fac; /* log facility */
|
||||
char *log_file; /* optional log file */
|
||||
@@ -1061,9 +1074,6 @@ extern struct daemon {
|
||||
@@ -1121,9 +1134,6 @@ extern struct daemon {
|
||||
struct serverfd *sfds;
|
||||
struct irec *interfaces;
|
||||
struct listener *listeners;
|
||||
@ -69,32 +69,32 @@ index 4beef35..27ff86a 100644
|
||||
struct server *srv_save; /* Used for resend on DoD */
|
||||
size_t packet_len; /* " " */
|
||||
int fd_save; /* " " */
|
||||
@@ -1319,6 +1329,8 @@ int loopback_exception(int fd, int family, struct all_addr *addr, char *name);
|
||||
int label_exception(int index, int family, struct all_addr *addr);
|
||||
@@ -1394,6 +1404,8 @@ int label_exception(int index, int family, union all_addr *addr);
|
||||
int fix_fd(int fd);
|
||||
int tcp_interface(int fd, int af);
|
||||
int set_ipv6pktinfo(int fd);
|
||||
+struct server_domain *server_domain_find_domain(const char *domain);
|
||||
+struct server_domain *server_domain_new(struct server *serv);
|
||||
#ifdef HAVE_IPV6
|
||||
int set_ipv6pktinfo(int fd);
|
||||
#ifdef HAVE_DHCP6
|
||||
void join_multicast(int dienow);
|
||||
#endif
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 11e0310..d8e845a 100644
|
||||
index 9322b6a..b09dc96 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -109,7 +109,8 @@ int send_from(int fd, int nowild, char *packet, size_t len,
|
||||
@@ -107,7 +107,8 @@ int send_from(int fd, int nowild, char *packet, size_t len,
|
||||
}
|
||||
|
||||
static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigned int qtype,
|
||||
static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned int qtype,
|
||||
- char *qdomain, int *type, char **domain, int *norebind)
|
||||
+ char *qdomain, int *type, char **domain, int *norebind,
|
||||
+ struct server_domain **serv_domain)
|
||||
|
||||
{
|
||||
/* If the query ends in the domain in one of our servers, set
|
||||
@@ -121,6 +122,9 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigne
|
||||
struct server *serv;
|
||||
@@ -120,6 +121,9 @@ static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned
|
||||
unsigned int flags = 0;
|
||||
static union all_addr zero;
|
||||
|
||||
+ if (serv_domain)
|
||||
+ *serv_domain = NULL;
|
||||
@ -102,7 +102,7 @@ index 11e0310..d8e845a 100644
|
||||
for (serv = daemon->servers; serv; serv=serv->next)
|
||||
if (qtype == F_DNSSECOK && !(serv->flags & SERV_DO_DNSSEC))
|
||||
continue;
|
||||
@@ -181,6 +185,8 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigne
|
||||
@@ -187,6 +191,8 @@ static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned
|
||||
{
|
||||
*type = serv->flags & (SERV_HAS_DOMAIN | SERV_USE_RESOLV | SERV_NO_REBIND | SERV_DO_DNSSEC);
|
||||
*domain = serv->domain;
|
||||
@ -111,7 +111,7 @@ index 11e0310..d8e845a 100644
|
||||
matchlen = domainlen;
|
||||
if (serv->flags & SERV_NO_ADDR)
|
||||
flags = F_NXDOMAIN;
|
||||
@@ -228,6 +234,8 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigne
|
||||
@@ -243,6 +249,8 @@ static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned
|
||||
*type = 0; /* use normal servers for this domain */
|
||||
*domain = NULL;
|
||||
}
|
||||
@ -120,7 +120,7 @@ index 11e0310..d8e845a 100644
|
||||
return flags;
|
||||
}
|
||||
|
||||
@@ -242,6 +250,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
@@ -304,6 +312,7 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
unsigned int flags = 0;
|
||||
unsigned int fwd_flags = 0;
|
||||
struct server *start = NULL;
|
||||
@ -128,9 +128,9 @@ index 11e0310..d8e845a 100644
|
||||
void *hash = hash_questions(header, plen, daemon->namebuff);
|
||||
#ifdef HAVE_DNSSEC
|
||||
int do_dnssec = 0;
|
||||
@@ -313,8 +322,10 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
@@ -422,8 +431,10 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
forward->sentto->failed_queries++;
|
||||
if (!option_bool(OPT_ORDER))
|
||||
if (!option_bool(OPT_ORDER) && old_src)
|
||||
{
|
||||
+ sd = forward->sentto->serv_domain;
|
||||
forward->forwardall = 1;
|
||||
@ -140,12 +140,9 @@ index 11e0310..d8e845a 100644
|
||||
}
|
||||
type = forward->sentto->flags & SERV_TYPE;
|
||||
#ifdef HAVE_DNSSEC
|
||||
@@ -363,10 +374,10 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
@@ -439,8 +450,8 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
/* new query */
|
||||
|
||||
return 1;
|
||||
}
|
||||
-
|
||||
+
|
||||
if (gotname)
|
||||
- flags = search_servers(now, &addrp, gotname, daemon->namebuff, &type, &domain, &norebind);
|
||||
-
|
||||
@ -154,7 +151,7 @@ index 11e0310..d8e845a 100644
|
||||
#ifdef HAVE_DNSSEC
|
||||
do_dnssec = type & SERV_DO_DNSSEC;
|
||||
#endif
|
||||
@@ -407,18 +418,18 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
@@ -482,18 +493,18 @@ static int forward_query(int udpfd, union mysockaddr *udpaddr,
|
||||
always try all the available servers,
|
||||
otherwise, use the one last known to work. */
|
||||
|
||||
@ -179,7 +176,7 @@ index 11e0310..d8e845a 100644
|
||||
}
|
||||
}
|
||||
else
|
||||
@@ -758,6 +769,7 @@ void reply_query(int fd, time_t now)
|
||||
@@ -844,6 +855,7 @@ void reply_query(int fd, time_t now)
|
||||
size_t nn;
|
||||
struct server *server;
|
||||
void *hash;
|
||||
@ -187,7 +184,7 @@ index 11e0310..d8e845a 100644
|
||||
|
||||
/* packet buffer overwritten */
|
||||
daemon->srv_save = NULL;
|
||||
@@ -845,7 +857,8 @@ void reply_query(int fd, time_t now)
|
||||
@@ -968,7 +980,8 @@ void reply_query(int fd, time_t now)
|
||||
}
|
||||
|
||||
server = forward->sentto;
|
||||
@ -197,7 +194,7 @@ index 11e0310..d8e845a 100644
|
||||
{
|
||||
if (RCODE(header) == REFUSED)
|
||||
server = NULL;
|
||||
@@ -863,7 +876,7 @@ void reply_query(int fd, time_t now)
|
||||
@@ -986,7 +999,7 @@ void reply_query(int fd, time_t now)
|
||||
}
|
||||
}
|
||||
if (!option_bool(OPT_ALL_SERVERS))
|
||||
@ -206,16 +203,16 @@ index 11e0310..d8e845a 100644
|
||||
}
|
||||
|
||||
/* We tried resending to this server with a smaller maximum size and got an answer.
|
||||
@@ -964,7 +977,7 @@ void reply_query(int fd, time_t now)
|
||||
@@ -1093,7 +1106,7 @@ void reply_query(int fd, time_t now)
|
||||
/* Find server to forward to. This will normally be the
|
||||
same as for the original query, but may be another if
|
||||
servers for domains are involved. */
|
||||
- if (search_servers(now, NULL, F_DNSSECOK, daemon->keyname, &type, &domain, NULL) == 0)
|
||||
+ if (search_servers(now, NULL, F_DNSSECOK, daemon->keyname, &type, &domain, NULL, &sd) == 0)
|
||||
{
|
||||
struct server *start = server, *new_server = NULL;
|
||||
|
||||
@@ -1541,7 +1554,7 @@ static int tcp_key_recurse(time_t now, int status, struct dns_header *header, si
|
||||
struct server *start, *new_server = NULL;
|
||||
start = server = forward->sentto;
|
||||
@@ -1664,7 +1677,7 @@ static int tcp_key_recurse(time_t now, int status, struct dns_header *header, si
|
||||
/* Find server to forward to. This will normally be the
|
||||
same as for the original query, but may be another if
|
||||
servers for domains are involved. */
|
||||
@ -224,13 +221,14 @@ index 11e0310..d8e845a 100644
|
||||
{
|
||||
new_status = STAT_ABANDONED;
|
||||
break;
|
||||
@@ -1814,11 +1827,12 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
@@ -1944,12 +1957,13 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
union all_addr *addrp = NULL;
|
||||
int type = SERV_DO_DNSSEC;
|
||||
char *domain = NULL;
|
||||
unsigned char *oph = find_pseudoheader(header, size, NULL, NULL, NULL, NULL);
|
||||
+ struct server_domain *sd = NULL;
|
||||
unsigned char *oph = find_pseudoheader(header, size, NULL, NULL, NULL, NULL);
|
||||
|
||||
size = add_edns0_config(header, size, ((unsigned char *) header) + 65536, &peer_addr, now, &check_subnet);
|
||||
size = add_edns0_config(header, size, ((unsigned char *) header) + 65536, &peer_addr, now, &check_subnet, &cacheable);
|
||||
|
||||
if (gotname)
|
||||
- flags = search_servers(now, &addrp, gotname, daemon->namebuff, &type, &domain, &norebind);
|
||||
@ -238,7 +236,7 @@ index 11e0310..d8e845a 100644
|
||||
|
||||
#ifdef HAVE_DNSSEC
|
||||
if (option_bool(OPT_DNSSEC_VALID) && (type & SERV_DO_DNSSEC))
|
||||
@@ -1839,10 +1853,10 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
@@ -1970,10 +1984,10 @@ unsigned char *tcp_request(int confd, time_t now,
|
||||
|
||||
type &= ~SERV_DO_DNSSEC;
|
||||
|
||||
@ -251,26 +249,26 @@ index 11e0310..d8e845a 100644
|
||||
|
||||
if (!flags && last_server)
|
||||
{
|
||||
@@ -2439,9 +2453,7 @@ void server_gone(struct server *server)
|
||||
@@ -2567,9 +2581,7 @@ void server_gone(struct server *server)
|
||||
if (daemon->randomsocks[i].refcount != 0 && daemon->randomsocks[i].serv == server)
|
||||
daemon->randomsocks[i].serv = NULL;
|
||||
|
||||
- if (daemon->last_server == server)
|
||||
- daemon->last_server = NULL;
|
||||
-
|
||||
+ /* last_server cleared by server_domain_cleanup */
|
||||
+ /* last_server cleared by server_domains_cleanup */
|
||||
if (daemon->srv_save == server)
|
||||
daemon->srv_save = NULL;
|
||||
}
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index 4eda1fd..4d140bb 100644
|
||||
index 3600250..1fa81ff 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -1428,6 +1428,29 @@ void cleanup_servers(void)
|
||||
@@ -1537,6 +1537,29 @@ void cleanup_servers(void)
|
||||
#endif
|
||||
}
|
||||
|
||||
+void server_domains_cleanup(void)
|
||||
+static void server_domains_cleanup(void)
|
||||
+{
|
||||
+ struct server_domain *sd, *tmp, **up;
|
||||
+
|
||||
@ -296,7 +294,7 @@ index 4eda1fd..4d140bb 100644
|
||||
void add_update_server(int flags,
|
||||
union mysockaddr *addr,
|
||||
union mysockaddr *source_addr,
|
||||
@@ -1507,10 +1530,72 @@ void add_update_server(int flags,
|
||||
@@ -1616,10 +1639,72 @@ void add_update_server(int flags,
|
||||
}
|
||||
}
|
||||
|
||||
@ -369,9 +367,9 @@ index 4eda1fd..4d140bb 100644
|
||||
struct serverfd *sfd, *tmp, **up;
|
||||
int port = 0, count;
|
||||
int locals = 0;
|
||||
@@ -1522,10 +1607,14 @@ void check_servers(void)
|
||||
@@ -1632,10 +1717,14 @@ void check_servers(void)
|
||||
for (sfd = daemon->sfds; sfd; sfd = sfd->next)
|
||||
sfd->used = 0;
|
||||
sfd->used = sfd->preallocated;
|
||||
|
||||
+ for (sd = daemon->server_domains; sd; sd = sd->next)
|
||||
+ sd->flags |= SERV_MARK;
|
||||
@ -384,7 +382,7 @@ index 4eda1fd..4d140bb 100644
|
||||
/* Init edns_pktsz for newly created server records. */
|
||||
if (serv->edns_pktsz == 0)
|
||||
serv->edns_pktsz = daemon->edns_pktsz;
|
||||
@@ -1541,12 +1630,8 @@ void check_servers(void)
|
||||
@@ -1651,12 +1740,8 @@ void check_servers(void)
|
||||
if (serv->flags & SERV_HAS_DOMAIN)
|
||||
{
|
||||
struct ds_config *ds;
|
||||
@ -399,7 +397,7 @@ index 4eda1fd..4d140bb 100644
|
||||
for (ds = daemon->ds; ds; ds = ds->next)
|
||||
if (ds->name[0] != 0 && hostname_isequal(domain, ds->name))
|
||||
break;
|
||||
@@ -1556,7 +1641,6 @@ void check_servers(void)
|
||||
@@ -1666,7 +1751,6 @@ void check_servers(void)
|
||||
}
|
||||
}
|
||||
#endif
|
||||
@ -407,7 +405,7 @@ index 4eda1fd..4d140bb 100644
|
||||
port = prettyprint_addr(&serv->addr, daemon->namebuff);
|
||||
|
||||
/* 0.0.0.0 is nothing, the stack treats it like 127.0.0.1 */
|
||||
@@ -1591,6 +1675,8 @@ void check_servers(void)
|
||||
@@ -1701,6 +1785,8 @@ void check_servers(void)
|
||||
|
||||
if (serv->sfd)
|
||||
serv->sfd->used = 1;
|
||||
@ -416,7 +414,7 @@ index 4eda1fd..4d140bb 100644
|
||||
}
|
||||
|
||||
if (!(serv->flags & SERV_NO_REBIND) && !(serv->flags & SERV_LITERAL_ADDRESS))
|
||||
@@ -1653,6 +1739,7 @@ void check_servers(void)
|
||||
@@ -1763,6 +1849,7 @@ void check_servers(void)
|
||||
up = &sfd->next;
|
||||
}
|
||||
|
||||
@ -425,10 +423,10 @@ index 4eda1fd..4d140bb 100644
|
||||
}
|
||||
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index abc5a48..6fa7bbd 100644
|
||||
index 6de5914..e4e3182 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -906,6 +906,7 @@ static struct server *add_rev4(struct in_addr addr, int msize)
|
||||
@@ -928,6 +928,7 @@ static struct server *add_rev4(struct in_addr addr, int msize)
|
||||
p += sprintf(p, "in-addr.arpa");
|
||||
|
||||
serv->flags = SERV_HAS_DOMAIN;
|
||||
@ -436,7 +434,7 @@ index abc5a48..6fa7bbd 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
|
||||
@@ -930,6 +931,7 @@ static struct server *add_rev6(struct in6_addr *addr, int msize)
|
||||
@@ -952,6 +953,7 @@ static struct server *add_rev6(struct in6_addr *addr, int msize)
|
||||
p += sprintf(p, "ip6.arpa");
|
||||
|
||||
serv->flags = SERV_HAS_DOMAIN;
|
||||
@ -444,7 +442,7 @@ index abc5a48..6fa7bbd 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
|
||||
@@ -2231,6 +2233,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2292,6 +2294,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
memset(serv, 0, sizeof(struct server));
|
||||
serv->domain = d;
|
||||
serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
|
||||
@ -452,7 +450,7 @@ index abc5a48..6fa7bbd 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
}
|
||||
@@ -2275,6 +2278,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2335,6 +2338,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
memset(serv, 0, sizeof(struct server));
|
||||
serv->domain = d;
|
||||
serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
|
||||
@ -460,7 +458,7 @@ index abc5a48..6fa7bbd 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
}
|
||||
@@ -2525,6 +2529,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2587,6 +2591,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
newlist = serv;
|
||||
serv->domain = domain;
|
||||
serv->flags = domain ? SERV_HAS_DOMAIN : SERV_FOR_NODOTS;
|
||||
|
||||
@ -1,73 +0,0 @@
|
||||
From a997ca0da044719a0ce8a232d14da8b30022592b Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Fri, 29 Jun 2018 14:39:41 +0100
|
||||
Subject: [PATCH] Fix sometimes missing DNSSEC RRs when DNSSEC validation not
|
||||
enabled.
|
||||
|
||||
Dnsmasq does pass on the do-bit, and return DNSSEC RRs, irrespective
|
||||
of of having DNSSEC validation compiled in or enabled.
|
||||
|
||||
The thing to understand here is that the cache does not store all the
|
||||
DNSSEC RRs, and dnsmasq doesn't have the (very complex) logic required
|
||||
to determine the set of DNSSEC RRs required in an answer. Therefore if
|
||||
the client wants the DNSSEC RRs, the query can not be answered from
|
||||
the cache. When DNSSEC validation is enabled, any query with the
|
||||
do-bit set is never answered from the cache, unless the domain is
|
||||
known not to be signed: the query is always forwarded. This ensures
|
||||
that the DNSEC RRs are included.
|
||||
|
||||
The same thing should be true when DNSSEC validation is not enabled,
|
||||
but there's a bug in the logic.
|
||||
|
||||
line 1666 of src/rfc1035.c looks like this
|
||||
|
||||
if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) || !do_bit || !(crecp->flags & F_DNSSECOK))
|
||||
|
||||
{ ...answer from cache ... }
|
||||
|
||||
So local stuff (hosts, DHCP, ) get answered. If the do_bit is not set
|
||||
then the query is answered, and if the domain is known not to be
|
||||
signed, the query is answered.
|
||||
|
||||
Unfortunately, if DNSSEC validation is not turned on then the
|
||||
F_DNSSECOK bit is not valid, and it's always zero, so the question
|
||||
always gets answered from the cache, even when the do-bit is set.
|
||||
|
||||
This code should look like that at line 1468, dealing with PTR queries
|
||||
|
||||
if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) ||
|
||||
!do_bit ||
|
||||
(option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK)))
|
||||
|
||||
where the F_DNSSECOK bit is only used when validation is enabled.
|
||||
---
|
||||
src/rfc1035.c | 6 ++++--
|
||||
1 file changed, 4 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/rfc1035.c b/src/rfc1035.c
|
||||
index ebb1f36..580f5ef 100644
|
||||
--- a/src/rfc1035.c
|
||||
+++ b/src/rfc1035.c
|
||||
@@ -1663,7 +1663,9 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
}
|
||||
|
||||
/* If the client asked for DNSSEC don't use cached data. */
|
||||
- if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) || !do_bit || !(crecp->flags & F_DNSSECOK))
|
||||
+ if ((crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) ||
|
||||
+ !do_bit ||
|
||||
+ (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK)))
|
||||
do
|
||||
{
|
||||
/* don't answer wildcard queries with data not from /etc/hosts
|
||||
@@ -1747,7 +1749,7 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
{
|
||||
if ((crecp = cache_find_by_name(NULL, name, now, F_CNAME | (dryrun ? F_NO_RR : 0))) &&
|
||||
(qtype == T_CNAME || (crecp->flags & F_CONFIG)) &&
|
||||
- ((crecp->flags & F_CONFIG) || !do_bit || !(crecp->flags & F_DNSSECOK)))
|
||||
+ ((crecp->flags & F_CONFIG) || !do_bit || (option_bool(OPT_DNSSEC_VALID) && !(crecp->flags & F_DNSSECOK))))
|
||||
{
|
||||
if (!(crecp->flags & F_DNSSECOK))
|
||||
sec_data = 0;
|
||||
--
|
||||
2.14.4
|
||||
|
||||
@ -1,25 +0,0 @@
|
||||
From 03212e533b1e07aba30d2f4112009dc3af867ea5 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Tue, 4 Sep 2018 17:52:28 +0100
|
||||
Subject: [PATCH] Manpage typo.
|
||||
|
||||
---
|
||||
man/dnsmasq.8 | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/man/dnsmasq.8 b/man/dnsmasq.8
|
||||
index ebfadba..a62860e 100644
|
||||
--- a/man/dnsmasq.8
|
||||
+++ b/man/dnsmasq.8
|
||||
@@ -27,7 +27,7 @@ TFTP server to allow net/PXE boot of DHCP hosts and also supports BOOTP. The PXE
|
||||
.PP
|
||||
The dnsmasq DHCPv6 server provides the same set of features as the
|
||||
DHCPv4 server, and in addition, it includes router advertisements and
|
||||
-a neat feature which allows nameing for clients which use DHCPv4 and
|
||||
+a neat feature which allows naming for clients which use DHCPv4 and
|
||||
stateless autoconfiguration only for IPv6 configuration. There is support for doing address allocation (both DHCPv6 and RA) from subnets which are dynamically delegated via DHCPv6 prefix delegation.
|
||||
.PP
|
||||
Dnsmasq is coded with small embedded systems in mind. It aims for the smallest possible memory footprint compatible with the supported functions, and allows unneeded functions to be omitted from the compiled binary.
|
||||
--
|
||||
2.31.1
|
||||
|
||||
@ -1,47 +0,0 @@
|
||||
From 69bc94779c2f035a9fffdb5327a54c3aeca73ed5 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Wed, 14 Aug 2019 20:44:50 +0100
|
||||
Subject: [PATCH] Fix memory leak in helper.c
|
||||
|
||||
Thanks to Xu Mingjie <xumingjie1995@outlook.com> for spotting this.
|
||||
---
|
||||
src/helper.c | 12 +++++++++---
|
||||
1 file changed, 9 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/helper.c b/src/helper.c
|
||||
index 33ba120..c392eec 100644
|
||||
--- a/src/helper.c
|
||||
+++ b/src/helper.c
|
||||
@@ -80,7 +80,8 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
|
||||
pid_t pid;
|
||||
int i, pipefd[2];
|
||||
struct sigaction sigact;
|
||||
-
|
||||
+ unsigned char *alloc_buff = NULL;
|
||||
+
|
||||
/* create the pipe through which the main program sends us commands,
|
||||
then fork our process. */
|
||||
if (pipe(pipefd) == -1 || !fix_fd(pipefd[1]) || (pid = fork()) == -1)
|
||||
@@ -186,11 +187,16 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
|
||||
struct script_data data;
|
||||
char *p, *action_str, *hostname = NULL, *domain = NULL;
|
||||
unsigned char *buf = (unsigned char *)daemon->namebuff;
|
||||
- unsigned char *end, *extradata, *alloc_buff = NULL;
|
||||
+ unsigned char *end, *extradata;
|
||||
int is6, err = 0;
|
||||
int pipeout[2];
|
||||
|
||||
- free(alloc_buff);
|
||||
+ /* Free rarely-allocated memory from previous iteration. */
|
||||
+ if (alloc_buff)
|
||||
+ {
|
||||
+ free(alloc_buff);
|
||||
+ alloc_buff = NULL;
|
||||
+ }
|
||||
|
||||
/* we read zero bytes when pipe closed: this is our signal to exit */
|
||||
if (!read_write(pipefd[0], (unsigned char *)&data, sizeof(data), 1))
|
||||
--
|
||||
1.7.10.4
|
||||
|
||||
|
||||
@ -1,28 +0,0 @@
|
||||
From 0a970b2a19c9fe5166e846d8a0c8b4f4fa5f1b4f Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Mon, 30 Jul 2018 14:55:39 +0100
|
||||
Subject: [PATCH] Fix crash parsing a --synth-domain with no prefix. Problem
|
||||
introduced in 2.79/6b2b564ac34cb3c862f168e6b1457f9f0b9ca69c
|
||||
|
||||
---
|
||||
src/option.c | 4 +++-
|
||||
1 file changed, 3 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index b22fc90..4e54afb 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -2347,7 +2347,9 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
char *star;
|
||||
new->next = daemon->synth_domains;
|
||||
daemon->synth_domains = new;
|
||||
- if ((star = strrchr(new->prefix, '*')) && *(star+1) == 0)
|
||||
+ if (new->prefix &&
|
||||
+ (star = strrchr(new->prefix, '*'))
|
||||
+ && *(star+1) == 0)
|
||||
{
|
||||
*star = 0;
|
||||
new->indexed = 1;
|
||||
--
|
||||
2.41.0
|
||||
|
||||
@ -1,317 +0,0 @@
|
||||
From 653481c6ebf46dcadb5a017085325d956dd04a28 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Tue, 21 Aug 2018 22:06:36 +0100
|
||||
Subject: [PATCH] Properly deal with unaligned addresses in DHCPv6 packets.
|
||||
|
||||
Thanks to Vladislav Grishenko for spotting this.
|
||||
|
||||
(cherry picked from commit 97f876b64c22b2b18412e2e3d8506ee33e42db7c)
|
||||
|
||||
Conflicts:
|
||||
src/rfc3315.c
|
||||
---
|
||||
src/rfc1035.c | 2 +-
|
||||
src/rfc3315.c | 101 ++++++++++++++++++++++++++++++++++------------------------
|
||||
2 files changed, 61 insertions(+), 42 deletions(-)
|
||||
|
||||
diff --git a/src/rfc1035.c b/src/rfc1035.c
|
||||
index 6b3bb27..ee5f7a0 100644
|
||||
--- a/src/rfc1035.c
|
||||
+++ b/src/rfc1035.c
|
||||
@@ -1376,7 +1376,7 @@ size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
|
||||
if (add_resource_record(header, limit, &trunc, nameoffset, &ansp,
|
||||
daemon->local_ttl, NULL,
|
||||
t->class, C_IN, "t", t->len, t->txt))
|
||||
- anscount ++;
|
||||
+ anscount++;
|
||||
}
|
||||
}
|
||||
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index 21fcd9b..ee1cf17 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -639,9 +639,8 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
int plain_range = 1;
|
||||
u32 lease_time;
|
||||
struct dhcp_lease *ltmp;
|
||||
- struct in6_addr *req_addr;
|
||||
- struct in6_addr addr;
|
||||
-
|
||||
+ struct in6_addr req_addr, addr;
|
||||
+
|
||||
if (!check_ia(state, opt, &ia_end, &ia_option))
|
||||
continue;
|
||||
|
||||
@@ -709,9 +708,10 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
|
||||
for (ia_counter = 0; ia_option; ia_counter++, ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
- req_addr = opt6_ptr(ia_option, 0);
|
||||
+ /* worry about alignment here. */
|
||||
+ memcpy(&req_addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
|
||||
- if ((c = address6_valid(state->context, req_addr, solicit_tags, plain_range)))
|
||||
+ if ((c = address6_valid(state->context, &req_addr, solicit_tags, plain_range)))
|
||||
{
|
||||
lease_time = c->lease_time;
|
||||
/* If the client asks for an address on the same network as a configured address,
|
||||
@@ -719,14 +719,14 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
addresses automatic. */
|
||||
if (!(c->flags & CONTEXT_CONF_USED) && config_valid(config, c, &addr) && check_address(state, &addr))
|
||||
{
|
||||
- req_addr = &addr;
|
||||
+ req_addr = addr;
|
||||
mark_config_used(c, &addr);
|
||||
if (have_config(config, CONFIG_TIME))
|
||||
lease_time = config->lease_time;
|
||||
}
|
||||
- else if (!(c = address6_available(state->context, req_addr, solicit_tags, plain_range)))
|
||||
+ else if (!(c = address6_available(state->context, &req_addr, solicit_tags, plain_range)))
|
||||
continue; /* not an address we're allowed */
|
||||
- else if (!check_address(state, req_addr))
|
||||
+ else if (!check_address(state, &req_addr))
|
||||
continue; /* address leased elsewhere */
|
||||
|
||||
/* add address to output packet */
|
||||
@@ -734,8 +734,8 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
if (dump_all_prefix_classes && state->ia_type == OPTION6_IA_NA)
|
||||
state->send_prefix_class = prefix_class_from_context(c);
|
||||
#endif
|
||||
- add_address(state, c, lease_time, ia_option, &min_time, req_addr, now);
|
||||
- mark_context_used(state, req_addr);
|
||||
+ add_address(state, c, lease_time, ia_option, &min_time, &req_addr, now);
|
||||
+ mark_context_used(state, &req_addr);
|
||||
get_context_tag(state, c);
|
||||
address_assigned = 1;
|
||||
}
|
||||
@@ -768,15 +768,15 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
ltmp = NULL;
|
||||
while ((ltmp = lease6_find_by_client(ltmp, state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA, state->clid, state->clid_len, state->iaid)))
|
||||
{
|
||||
- req_addr = <mp->addr6;
|
||||
- if ((c = address6_available(state->context, req_addr, solicit_tags, plain_range)))
|
||||
+ req_addr = ltmp->addr6;
|
||||
+ if ((c = address6_available(state->context, &req_addr, solicit_tags, plain_range)))
|
||||
{
|
||||
#ifdef OPTION6_PREFIX_CLASS
|
||||
if (dump_all_prefix_classes && state->ia_type == OPTION6_IA_NA)
|
||||
state->send_prefix_class = prefix_class_from_context(c);
|
||||
#endif
|
||||
- add_address(state, c, c->lease_time, NULL, &min_time, req_addr, now);
|
||||
- mark_context_used(state, req_addr);
|
||||
+ add_address(state, c, c->lease_time, NULL, &min_time, &req_addr, now);
|
||||
+ mark_context_used(state, &req_addr);
|
||||
get_context_tag(state, c);
|
||||
address_assigned = 1;
|
||||
}
|
||||
@@ -892,16 +892,19 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
|
||||
for (; ia_option; ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
- struct in6_addr *req_addr = opt6_ptr(ia_option, 0);
|
||||
+ struct in6_addr req_addr;
|
||||
struct dhcp_context *dynamic, *c;
|
||||
unsigned int lease_time;
|
||||
struct in6_addr addr;
|
||||
int config_ok = 0;
|
||||
+
|
||||
+ /* align. */
|
||||
+ memcpy(&req_addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
|
||||
- if ((c = address6_valid(state->context, req_addr, tagif, 1)))
|
||||
- config_ok = config_valid(config, c, &addr) && IN6_ARE_ADDR_EQUAL(&addr, req_addr);
|
||||
+ if ((c = address6_valid(state->context, &req_addr, tagif, 1)))
|
||||
+ config_ok = config_valid(config, c, &addr) && IN6_ARE_ADDR_EQUAL(&addr, &req_addr);
|
||||
|
||||
- if ((dynamic = address6_available(state->context, req_addr, tagif, 1)) || c)
|
||||
+ if ((dynamic = address6_available(state->context, &req_addr, tagif, 1)) || c)
|
||||
{
|
||||
if (!dynamic && !config_ok)
|
||||
{
|
||||
@@ -911,7 +914,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
put_opt6_string(_("address unavailable"));
|
||||
end_opt6(o1);
|
||||
}
|
||||
- else if (!check_address(state, req_addr))
|
||||
+ else if (!check_address(state, &req_addr))
|
||||
{
|
||||
/* Address leased to another DUID/IAID */
|
||||
o1 = new_opt6(OPTION6_STATUS_CODE);
|
||||
@@ -933,7 +936,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
if (dump_all_prefix_classes && state->ia_type == OPTION6_IA_NA)
|
||||
state->send_prefix_class = prefix_class_from_context(c);
|
||||
#endif
|
||||
- add_address(state, dynamic, lease_time, ia_option, &min_time, req_addr, now);
|
||||
+ add_address(state, dynamic, lease_time, ia_option, &min_time, &req_addr, now);
|
||||
get_context_tag(state, dynamic);
|
||||
address_assigned = 1;
|
||||
}
|
||||
@@ -996,15 +999,17 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
for (; ia_option; ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
struct dhcp_lease *lease = NULL;
|
||||
- struct in6_addr *req_addr = opt6_ptr(ia_option, 0);
|
||||
+ struct in6_addr req_addr;
|
||||
unsigned int preferred_time = opt6_uint(ia_option, 16, 4);
|
||||
unsigned int valid_time = opt6_uint(ia_option, 20, 4);
|
||||
char *message = NULL;
|
||||
struct dhcp_context *this_context;
|
||||
+
|
||||
+ memcpy(&req_addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
|
||||
if (!(lease = lease6_find(state->clid, state->clid_len,
|
||||
state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA,
|
||||
- state->iaid, req_addr)))
|
||||
+ state->iaid, &req_addr)))
|
||||
{
|
||||
/* If the server cannot find a client entry for the IA the server
|
||||
returns the IA containing no addresses with a Status Code option set
|
||||
@@ -1012,7 +1017,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
save_counter(iacntr);
|
||||
t1cntr = 0;
|
||||
|
||||
- log6_packet(state, "DHCPREPLY", req_addr, _("lease not found"));
|
||||
+ log6_packet(state, "DHCPREPLY", &req_addr, _("lease not found"));
|
||||
|
||||
o1 = new_opt6(OPTION6_STATUS_CODE);
|
||||
put_opt6_short(DHCP6NOBINDING);
|
||||
@@ -1024,15 +1029,15 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
}
|
||||
|
||||
|
||||
- if ((this_context = address6_available(state->context, req_addr, tagif, 1)) ||
|
||||
- (this_context = address6_valid(state->context, req_addr, tagif, 1)))
|
||||
+ if ((this_context = address6_available(state->context, &req_addr, tagif, 1)) ||
|
||||
+ (this_context = address6_valid(state->context, &req_addr, tagif, 1)))
|
||||
{
|
||||
struct in6_addr addr;
|
||||
unsigned int lease_time;
|
||||
|
||||
get_context_tag(state, this_context);
|
||||
|
||||
- if (config_valid(config, this_context, &addr) && IN6_ARE_ADDR_EQUAL(&addr, req_addr) && have_config(config, CONFIG_TIME))
|
||||
+ if (config_valid(config, this_context, &addr) && IN6_ARE_ADDR_EQUAL(&addr, &req_addr) && have_config(config, CONFIG_TIME))
|
||||
lease_time = config->lease_time;
|
||||
else
|
||||
lease_time = this_context->lease_time;
|
||||
@@ -1045,7 +1050,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
lease_set_hwaddr(lease, state->mac, state->clid, state->mac_len, state->mac_type, state->clid_len, now, 0);
|
||||
if (state->ia_type == OPTION6_IA_NA && state->hostname)
|
||||
{
|
||||
- char *addr_domain = get_domain6(req_addr);
|
||||
+ char *addr_domain = get_domain6(&req_addr);
|
||||
if (!state->send_domain)
|
||||
state->send_domain = addr_domain;
|
||||
lease_set_hostname(lease, state->hostname, state->hostname_auth, addr_domain, state->domain);
|
||||
@@ -1063,12 +1068,12 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
}
|
||||
|
||||
if (message && (message != state->hostname))
|
||||
- log6_packet(state, "DHCPREPLY", req_addr, message);
|
||||
+ log6_packet(state, "DHCPREPLY", &req_addr, message);
|
||||
else
|
||||
- log6_quiet(state, "DHCPREPLY", req_addr, message);
|
||||
+ log6_quiet(state, "DHCPREPLY", &req_addr, message);
|
||||
|
||||
o1 = new_opt6(OPTION6_IAADDR);
|
||||
- put_opt6(req_addr, sizeof(*req_addr));
|
||||
+ put_opt6(&req_addr, sizeof(req_addr));
|
||||
put_opt6_long(preferred_time);
|
||||
put_opt6_long(valid_time);
|
||||
end_opt6(o1);
|
||||
@@ -1100,19 +1105,23 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
ia_option;
|
||||
ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
- struct in6_addr *req_addr = opt6_ptr(ia_option, 0);
|
||||
+ struct in6_addr req_addr;
|
||||
+
|
||||
+ /* alignment */
|
||||
+ memcpy(&req_addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
|
||||
- if (!address6_valid(state->context, req_addr, tagif, 1))
|
||||
+ if (!address6_valid(state->context, &req_addr, tagif, 1))
|
||||
{
|
||||
o1 = new_opt6(OPTION6_STATUS_CODE);
|
||||
put_opt6_short(DHCP6NOTONLINK);
|
||||
put_opt6_string(_("confirm failed"));
|
||||
end_opt6(o1);
|
||||
+ log6_quiet(state, "DHCPREPLY", &req_addr, _("confirm failed"));
|
||||
return 1;
|
||||
}
|
||||
|
||||
good_addr = 1;
|
||||
- log6_quiet(state, "DHCPREPLY", req_addr, state->hostname);
|
||||
+ log6_quiet(state, "DHCPREPLY", &req_addr, state->hostname);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1171,9 +1180,12 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
struct dhcp_lease *lease;
|
||||
-
|
||||
+ struct in6_addr addr;
|
||||
+
|
||||
+ /* align */
|
||||
+ memcpy(&addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
if ((lease = lease6_find(state->clid, state->clid_len, state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA,
|
||||
- state->iaid, opt6_ptr(ia_option, 0))))
|
||||
+ state->iaid, &addr)))
|
||||
lease_prune(lease, now);
|
||||
else
|
||||
{
|
||||
@@ -1233,12 +1245,15 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
ia_option = opt6_find(opt6_next(ia_option, ia_end), ia_end, OPTION6_IAADDR, 24))
|
||||
{
|
||||
struct dhcp_lease *lease;
|
||||
- struct in6_addr *addrp = opt6_ptr(ia_option, 0);
|
||||
+ struct in6_addr addr;
|
||||
|
||||
- if (have_config(config, CONFIG_ADDR6) && IN6_ARE_ADDR_EQUAL(&config->addr6, addrp))
|
||||
+ /* align */
|
||||
+ memcpy(&addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
+
|
||||
+ if (have_config(config, CONFIG_ADDR6) && IN6_ARE_ADDR_EQUAL(&config->addr6, &addr))
|
||||
{
|
||||
prettyprint_time(daemon->dhcp_buff3, DECLINE_BACKOFF);
|
||||
- inet_ntop(AF_INET6, addrp, daemon->addrbuff, ADDRSTRLEN);
|
||||
+ inet_ntop(AF_INET6, &addr, daemon->addrbuff, ADDRSTRLEN);
|
||||
my_syslog(MS_DHCP | LOG_WARNING, _("disabling DHCP static address %s for %s"),
|
||||
daemon->addrbuff, daemon->dhcp_buff3);
|
||||
config->flags |= CONFIG_DECLINED;
|
||||
@@ -1250,7 +1265,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
context_tmp->addr_epoch++;
|
||||
|
||||
if ((lease = lease6_find(state->clid, state->clid_len, state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA,
|
||||
- state->iaid, opt6_ptr(ia_option, 0))))
|
||||
+ state->iaid, &addr)))
|
||||
lease_prune(lease, now);
|
||||
else
|
||||
{
|
||||
@@ -1267,7 +1282,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
}
|
||||
|
||||
o1 = new_opt6(OPTION6_IAADDR);
|
||||
- put_opt6(opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
+ put_opt6(&addr, IN6ADDRSZ);
|
||||
put_opt6_long(0);
|
||||
put_opt6_long(0);
|
||||
end_opt6(o1);
|
||||
@@ -1935,7 +1950,11 @@ static void log6_opts(int nest, unsigned int xid, void *start_opts, void *end_op
|
||||
}
|
||||
else if (type == OPTION6_IAADDR)
|
||||
{
|
||||
- inet_ntop(AF_INET6, opt6_ptr(opt, 0), daemon->addrbuff, ADDRSTRLEN);
|
||||
+ struct in6_addr addr;
|
||||
+
|
||||
+ /* align */
|
||||
+ memcpy(&addr, opt6_ptr(opt, 0), IN6ADDRSZ);
|
||||
+ inet_ntop(AF_INET6, &addr, daemon->addrbuff, ADDRSTRLEN);
|
||||
sprintf(daemon->namebuff, "%s PL=%u VL=%u",
|
||||
daemon->addrbuff, opt6_uint(opt, 16, 4), opt6_uint(opt, 20, 4));
|
||||
optname = "iaaddr";
|
||||
--
|
||||
1.8.3.1
|
||||
|
||||
92
SOURCES/dnsmasq-2.81-configuration.patch
Normal file
92
SOURCES/dnsmasq-2.81-configuration.patch
Normal file
@ -0,0 +1,92 @@
|
||||
From 3a593d133f91c5126105efd03246b3f61f103dd4 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Tue, 30 Jun 2020 18:06:29 +0200
|
||||
Subject: [PATCH] Modify upstream configuration to safe defaults
|
||||
|
||||
Most important change would be to listen only on localhost. Default
|
||||
configuration should not listen to request from remote hosts. Match also
|
||||
user and paths to directories shipped in Fedora.
|
||||
---
|
||||
dnsmasq.conf.example | 24 +++++++++++++++++++-----
|
||||
1 file changed, 19 insertions(+), 5 deletions(-)
|
||||
|
||||
diff --git a/dnsmasq.conf.example b/dnsmasq.conf.example
|
||||
index bf19424..36fba33 100644
|
||||
--- a/dnsmasq.conf.example
|
||||
+++ b/dnsmasq.conf.example
|
||||
@@ -22,7 +22,7 @@
|
||||
|
||||
# Uncomment these to enable DNSSEC validation and caching:
|
||||
# (Requires dnsmasq to be built with DNSSEC option.)
|
||||
-#conf-file=%%PREFIX%%/share/dnsmasq/trust-anchors.conf
|
||||
+#conf-file=/usr/share/dnsmasq/trust-anchors.conf
|
||||
#dnssec
|
||||
|
||||
# Replies which are not DNSSEC signed may be legitimate, because the domain
|
||||
@@ -96,14 +96,16 @@
|
||||
|
||||
# If you want dnsmasq to change uid and gid to something other
|
||||
# than the default, edit the following lines.
|
||||
-#user=
|
||||
-#group=
|
||||
+user=dnsmasq
|
||||
+group=dnsmasq
|
||||
|
||||
# If you want dnsmasq to listen for DHCP and DNS requests only on
|
||||
# specified interfaces (and the loopback) give the name of the
|
||||
# interface (eg eth0) here.
|
||||
# Repeat the line for more than one interface.
|
||||
#interface=
|
||||
+# Listen only on localhost by default
|
||||
+interface=lo
|
||||
# Or you can specify which interface _not_ to listen on
|
||||
#except-interface=
|
||||
# Or which to listen on by address (remember to include 127.0.0.1 if
|
||||
@@ -114,6 +116,10 @@
|
||||
# disable DHCP and TFTP on it.
|
||||
#no-dhcp-interface=
|
||||
|
||||
+# Serve DNS and DHCP only to networks directly connected to this machine.
|
||||
+# Any interface= line will override it.
|
||||
+#local-service
|
||||
+
|
||||
# On systems which support it, dnsmasq binds the wildcard address,
|
||||
# even when it is listening on only some interfaces. It then discards
|
||||
# requests that it shouldn't reply to. This has the advantage of
|
||||
@@ -121,7 +127,11 @@
|
||||
# want dnsmasq to really bind only the interfaces it is listening on,
|
||||
# uncomment this option. About the only time you may need this is when
|
||||
# running another nameserver on the same machine.
|
||||
-#bind-interfaces
|
||||
+#
|
||||
+# To listen only on localhost and do not receive packets on other
|
||||
+# interfaces, bind only to lo device. Comment out to bind on single
|
||||
+# wildcard socket.
|
||||
+bind-interfaces
|
||||
|
||||
# If you don't want dnsmasq to read /etc/hosts, uncomment the
|
||||
# following line.
|
||||
@@ -535,7 +545,7 @@
|
||||
# The DHCP server needs somewhere on disk to keep its lease database.
|
||||
# This defaults to a sane location, but if you want to change it, use
|
||||
# the line below.
|
||||
-#dhcp-leasefile=/var/lib/misc/dnsmasq.leases
|
||||
+#dhcp-leasefile=/var/lib/dnsmasq/dnsmasq.leases
|
||||
|
||||
# Set the DHCP server to authoritative mode. In this mode it will barge in
|
||||
# and take over the lease for any client which broadcasts on the network,
|
||||
@@ -673,7 +683,11 @@
|
||||
# Include all files in a directory which end in .conf
|
||||
#conf-dir=/etc/dnsmasq.d/,*.conf
|
||||
|
||||
+# Include all files in /etc/dnsmasq.d except RPM backup files
|
||||
+conf-dir=/etc/dnsmasq.d,.rpmnew,.rpmsave,.rpmorig
|
||||
+
|
||||
# If a DHCP client claims that its name is "wpad", ignore that.
|
||||
# This fixes a security hole. see CERT Vulnerability VU#598349
|
||||
#dhcp-name-match=set:wpad-ignore,wpad
|
||||
#dhcp-ignore-names=tag:wpad-ignore
|
||||
+
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,44 +0,0 @@
|
||||
From 6307208c806f9b968eca178931b3d77c4ed83c54 Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Fri, 6 Mar 2020 15:37:23 +0100
|
||||
Subject: [PATCH] Correct range check of dhcp-host prefix
|
||||
|
||||
It incorrectly works with 32 bit integer only when counting number of
|
||||
addresses in range. It works correctly only between prefixlen 96 and
|
||||
128. Use 64bit shift to work with well with numbers higher than 64.
|
||||
|
||||
Fixes commit 79aba0f10ad0157fb4f48afbbcb03f094caff97a error.
|
||||
---
|
||||
src/option.c | 2 +-
|
||||
src/rfc3315.c | 2 +-
|
||||
2 files changed, 2 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index 88cd2ab..79122df 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -3247,7 +3247,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
|
||||
if (!atoi_check(pref, &new_addr->prefixlen) ||
|
||||
new_addr->prefixlen > 128 ||
|
||||
- (((1<<(128-new_addr->prefixlen))-1) & addrpart) != 0)
|
||||
+ ((((u64)1<<(128-new_addr->prefixlen))-1) & addrpart) != 0)
|
||||
{
|
||||
dhcp_config_free(new);
|
||||
ret_err(_("bad IPv6 prefix"));
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index a0067e9..f59aedc 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -1798,7 +1798,7 @@ static int config_valid(struct dhcp_config *config, struct dhcp_context *context
|
||||
addresses = 1;
|
||||
|
||||
if (addr_list->flags & ADDRLIST_PREFIX)
|
||||
- addresses = 1<<(128-addr_list->prefixlen);
|
||||
+ addresses = (u64)1<<(128-addr_list->prefixlen);
|
||||
|
||||
if ((addr_list->flags & ADDRLIST_WILDCARD))
|
||||
{
|
||||
--
|
||||
2.21.1
|
||||
|
||||
@ -1,56 +0,0 @@
|
||||
From f8c77edbdffb8ada7753ea9fa104f0f6da70cfe3 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Thu, 10 Jan 2019 21:58:18 +0000
|
||||
Subject: [PATCH] Fix removal of DHCP_CLIENT_MAC options from DHCPv6 relay
|
||||
replies.
|
||||
|
||||
---
|
||||
src/rfc3315.c | 30 +++++++++++++++++-------------
|
||||
1 file changed, 17 insertions(+), 13 deletions(-)
|
||||
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index d3c1722..79b2a86 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -219,21 +219,25 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
|
||||
if (opt6_ptr(opt, 0) + opt6_len(opt) > end)
|
||||
return 0;
|
||||
|
||||
- int o = new_opt6(opt6_type(opt));
|
||||
- if (opt6_type(opt) == OPTION6_RELAY_MSG)
|
||||
+ /* Don't copy MAC address into reply. */
|
||||
+ if (opt6_type(opt) != OPTION6_CLIENT_MAC)
|
||||
{
|
||||
- struct in6_addr align;
|
||||
- /* the packet data is unaligned, copy to aligned storage */
|
||||
- memcpy(&align, inbuff + 2, IN6ADDRSZ);
|
||||
- state->link_address = &align;
|
||||
- /* zero is_unicast since that is now known to refer to the
|
||||
- relayed packet, not the original sent by the client */
|
||||
- if (!dhcp6_maybe_relay(state, opt6_ptr(opt, 0), opt6_len(opt), client_addr, 0, now))
|
||||
- return 0;
|
||||
+ int o = new_opt6(opt6_type(opt));
|
||||
+ if (opt6_type(opt) == OPTION6_RELAY_MSG)
|
||||
+ {
|
||||
+ struct in6_addr align;
|
||||
+ /* the packet data is unaligned, copy to aligned storage */
|
||||
+ memcpy(&align, inbuff + 2, IN6ADDRSZ);
|
||||
+ state->link_address = &align;
|
||||
+ /* zero is_unicast since that is now known to refer to the
|
||||
+ relayed packet, not the original sent by the client */
|
||||
+ if (!dhcp6_maybe_relay(state, opt6_ptr(opt, 0), opt6_len(opt), client_addr, 0, now))
|
||||
+ return 0;
|
||||
+ }
|
||||
+ else
|
||||
+ put_opt6(opt6_ptr(opt, 0), opt6_len(opt));
|
||||
+ end_opt6(o);
|
||||
}
|
||||
- else if (opt6_type(opt) != OPTION6_CLIENT_MAC)
|
||||
- put_opt6(opt6_ptr(opt, 0), opt6_len(opt));
|
||||
- end_opt6(o);
|
||||
}
|
||||
|
||||
return 1;
|
||||
--
|
||||
2.39.1
|
||||
|
||||
@ -1,25 +0,0 @@
|
||||
From 3052ce208acf602f0163166dcefb7330d537cedb Mon Sep 17 00:00:00 2001
|
||||
From: Jiri Slaby <jslaby@suse.cz>
|
||||
Date: Wed, 24 Jul 2019 17:34:48 +0100
|
||||
Subject: [PATCH] Fix build after y2038 changes in glib.
|
||||
|
||||
SIOCGSTAMP is defined in linux/sockios.h, not asm/sockios.h now.
|
||||
---
|
||||
src/dnsmasq.h | 1 +
|
||||
1 file changed, 1 insertion(+)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index ff3204a..3ef04ad 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -137,6 +137,7 @@ typedef unsigned long long u64;
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_LINUX_NETWORK)
|
||||
+#include <linux/sockios.h>
|
||||
#include <linux/capability.h>
|
||||
/* There doesn't seem to be a universally-available
|
||||
userspace header for these. */
|
||||
--
|
||||
2.36.1
|
||||
|
||||
@ -1,45 +0,0 @@
|
||||
From 595b2e2e87f152c4ade7e2d66cb78915096f60c2 Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <donaldsharp72@gmail.com>
|
||||
Date: Mon, 2 Mar 2020 11:23:36 -0500
|
||||
Subject: [PATCH] Ignore routes in non-main tables
|
||||
|
||||
Route lookup in Linux is bounded by `ip rules` as well
|
||||
as the contents of specific routing tables. With the
|
||||
advent of vrf's(l3mdev's) non-default tables are regularly being
|
||||
used for routing purposes.
|
||||
|
||||
dnsmasq listens to all route changes on the box and responds
|
||||
to each one with an event. This is *expensive* when a full
|
||||
BGP routing table is placed into the linux kernel, moreso
|
||||
when dnsmasq is responding to events in tables that it will
|
||||
never actually need to respond to, since dnsmasq at this
|
||||
point in time has no concept of vrf's and would need
|
||||
to be programmed to understand them. Help alleviate this load
|
||||
by reducing the set of data that dnsmasq pays attention to
|
||||
when we know there are events that are not useful at this
|
||||
point in time.
|
||||
|
||||
Signed-off-by: Donald Sharp <donaldsharp72@gmail.com>
|
||||
(cherry picked from commit b2ed691eb3ca6488a8878f5f3dd950a07b14a9db)
|
||||
---
|
||||
src/netlink.c | 4 +++-
|
||||
1 file changed, 3 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/src/netlink.c b/src/netlink.c
|
||||
index 8cd51af..0a3da3e 100644
|
||||
--- a/src/netlink.c
|
||||
+++ b/src/netlink.c
|
||||
@@ -363,7 +363,9 @@ static void nl_async(struct nlmsghdr *h)
|
||||
failing. */
|
||||
struct rtmsg *rtm = NLMSG_DATA(h);
|
||||
|
||||
- if (rtm->rtm_type == RTN_UNICAST && rtm->rtm_scope == RT_SCOPE_LINK)
|
||||
+ if (rtm->rtm_type == RTN_UNICAST && rtm->rtm_scope == RT_SCOPE_LINK &&
|
||||
+ (rtm->rtm_table == RT_TABLE_MAIN ||
|
||||
+ rtm->rtm_table == RT_TABLE_LOCAL))
|
||||
queue_event(EVENT_NEWROUTE);
|
||||
}
|
||||
else if (h->nlmsg_type == RTM_NEWADDR || h->nlmsg_type == RTM_DELADDR)
|
||||
--
|
||||
2.26.2
|
||||
|
||||
@ -1,132 +0,0 @@
|
||||
commit 98c6998116e33f9f34b798682e0695f4166bd86d
|
||||
Author: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Mon Mar 2 17:10:25 2020 +0000
|
||||
|
||||
Optimise closing file descriptors.
|
||||
|
||||
Dnsmasq needs to close all the file descriptors it inherits, for security
|
||||
reasons. This is traditionally done by calling close() on every possible
|
||||
file descriptor (most of which won't be open.) On big servers where
|
||||
"every possible file descriptor" is a rather large set, this gets
|
||||
rather slow, so we use the /proc/<pid>/fd directory to get a list
|
||||
of the fds which are acually open.
|
||||
|
||||
This only works on Linux. On other platforms, and on Linux systems
|
||||
without a /proc filesystem, we fall back to the old way.
|
||||
|
||||
diff --git a/src/dnsmasq.c b/src/dnsmasq.c
|
||||
index 573aac0..10f19ea 100644
|
||||
--- a/src/dnsmasq.c
|
||||
+++ b/src/dnsmasq.c
|
||||
@@ -138,20 +138,18 @@ int main (int argc, char **argv)
|
||||
}
|
||||
#endif
|
||||
|
||||
- /* Close any file descriptors we inherited apart from std{in|out|err}
|
||||
-
|
||||
- Ensure that at least stdin, stdout and stderr (fd 0, 1, 2) exist,
|
||||
+ /* Ensure that at least stdin, stdout and stderr (fd 0, 1, 2) exist,
|
||||
otherwise file descriptors we create can end up being 0, 1, or 2
|
||||
and then get accidentally closed later when we make 0, 1, and 2
|
||||
open to /dev/null. Normally we'll be started with 0, 1 and 2 open,
|
||||
but it's not guaranteed. By opening /dev/null three times, we
|
||||
ensure that we're not using those fds for real stuff. */
|
||||
- for (i = 0; i < max_fd; i++)
|
||||
- if (i != STDOUT_FILENO && i != STDERR_FILENO && i != STDIN_FILENO)
|
||||
- close(i);
|
||||
- else
|
||||
- open("/dev/null", O_RDWR);
|
||||
-
|
||||
+ for (i = 0; i < 3; i++)
|
||||
+ open("/dev/null", O_RDWR);
|
||||
+
|
||||
+ /* Close any file descriptors we inherited apart from std{in|out|err} */
|
||||
+ close_fds(max_fd, -1, -1, -1);
|
||||
+
|
||||
#ifndef HAVE_LINUX_NETWORK
|
||||
# if !(defined(IP_RECVDSTADDR) && defined(IP_RECVIF) && defined(IP_SENDSRCADDR))
|
||||
if (!option_bool(OPT_NOWILD))
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 6103eb5..c46bfeb 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -1283,7 +1283,7 @@ int memcmp_masked(unsigned char *a, unsigned char *b, int len,
|
||||
int expand_buf(struct iovec *iov, size_t size);
|
||||
char *print_mac(char *buff, unsigned char *mac, int len);
|
||||
int read_write(int fd, unsigned char *packet, int size, int rw);
|
||||
-
|
||||
+void close_fds(long max_fd, int spare1, int spare2, int spare3);
|
||||
int wildcard_match(const char* wildcard, const char* match);
|
||||
int wildcard_matchn(const char* wildcard, const char* match, int num);
|
||||
|
||||
diff --git a/src/helper.c b/src/helper.c
|
||||
index 1b260a1..7072cf4 100644
|
||||
--- a/src/helper.c
|
||||
+++ b/src/helper.c
|
||||
@@ -131,12 +131,8 @@ int create_helper(int event_fd, int err_fd, uid_t uid, gid_t gid, long max_fd)
|
||||
Don't close err_fd, in case the lua-init fails.
|
||||
Note that we have to do this before lua init
|
||||
so we don't close any lua fds. */
|
||||
- for (max_fd--; max_fd >= 0; max_fd--)
|
||||
- if (max_fd != STDOUT_FILENO && max_fd != STDERR_FILENO &&
|
||||
- max_fd != STDIN_FILENO && max_fd != pipefd[0] &&
|
||||
- max_fd != event_fd && max_fd != err_fd)
|
||||
- close(max_fd);
|
||||
-
|
||||
+ close_fds(max_fd, pipefd[0], event_fd, err_fd);
|
||||
+
|
||||
#ifdef HAVE_LUASCRIPT
|
||||
if (daemon->luascript)
|
||||
{
|
||||
diff --git a/src/util.c b/src/util.c
|
||||
index 73bf62a..f058c92 100644
|
||||
--- a/src/util.c
|
||||
+++ b/src/util.c
|
||||
@@ -705,6 +705,47 @@ int read_write(int fd, unsigned char *packet, int size, int rw)
|
||||
return 1;
|
||||
}
|
||||
|
||||
+/* close all fds except STDIN, STDOUT and STDERR, spare1, spare2 and spare3 */
|
||||
+void close_fds(long max_fd, int spare1, int spare2, int spare3)
|
||||
+{
|
||||
+ /* On Linux, use the /proc/ filesystem to find which files
|
||||
+ are actually open, rather than iterate over the whole space,
|
||||
+ for efficiency reasons. If this fails we drop back to the dumb code. */
|
||||
+#ifdef HAVE_LINUX_NETWORK
|
||||
+ DIR *d;
|
||||
+
|
||||
+ if ((d = opendir("/proc/self/fd")))
|
||||
+ {
|
||||
+ struct dirent *de;
|
||||
+
|
||||
+ while ((de = readdir(d)))
|
||||
+ {
|
||||
+ long fd;
|
||||
+ char *e = NULL;
|
||||
+
|
||||
+ errno = 0;
|
||||
+ fd = strtol(de->d_name, &e, 10);
|
||||
+
|
||||
+ if (errno != 0 || !e || *e || fd == dirfd(d) ||
|
||||
+ fd == STDOUT_FILENO || fd == STDERR_FILENO || fd == STDIN_FILENO ||
|
||||
+ fd == spare1 || fd == spare2 || fd == spare3)
|
||||
+ continue;
|
||||
+
|
||||
+ close(fd);
|
||||
+ }
|
||||
+
|
||||
+ closedir(d);
|
||||
+ return;
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
+ /* fallback, dumb code. */
|
||||
+ for (max_fd--; max_fd >= 0; max_fd--)
|
||||
+ if (max_fd != STDOUT_FILENO && max_fd != STDERR_FILENO && max_fd != STDIN_FILENO &&
|
||||
+ max_fd != spare1 && max_fd != spare2 && max_fd != spare3)
|
||||
+ close(max_fd);
|
||||
+}
|
||||
+
|
||||
/* Basically match a string value against a wildcard pattern. */
|
||||
int wildcard_match(const char* wildcard, const char* match)
|
||||
{
|
||||
@ -1,161 +0,0 @@
|
||||
From 03936d309782da038a2982b08fce7be85d884f0e Mon Sep 17 00:00:00 2001
|
||||
From: Vladislav Grishenko <themiron@mail.ru>
|
||||
Date: Sun, 8 Mar 2020 15:34:34 +0000
|
||||
Subject: [PATCH] Add DHCPv6 ntp-server (56) option handling.
|
||||
|
||||
There was discussion in the past regarding DHCPv6 NTP server option
|
||||
which needs special subclassing per RFC5908.
|
||||
|
||||
Patch adds support for unicast, multicast IPv6 address and for FQDN string,
|
||||
preserving possibly used (as suggested earlier) hex value.
|
||||
|
||||
Unfortunately it's still not fully free from limitations - only address list or
|
||||
only fqdn value list is possible, not mixed due current
|
||||
state option parsing & flagging.
|
||||
|
||||
(cherry picked from commit dded78b2338147daf69064d6d48c16b12744e441)
|
||||
---
|
||||
src/dhcp-common.c | 2 +-
|
||||
src/dhcp6-protocol.h | 4 ++++
|
||||
src/option.c | 19 ++++++++++++++++---
|
||||
src/rfc3315.c | 24 ++++++++++++++++++++----
|
||||
4 files changed, 41 insertions(+), 8 deletions(-)
|
||||
|
||||
diff --git a/src/dhcp-common.c b/src/dhcp-common.c
|
||||
index 368d686..242a5a1 100644
|
||||
--- a/src/dhcp-common.c
|
||||
+++ b/src/dhcp-common.c
|
||||
@@ -642,7 +642,7 @@ static const struct opttab_t opttab6[] = {
|
||||
{ "sntp-server", 31, OT_ADDR_LIST },
|
||||
{ "information-refresh-time", 32, OT_TIME },
|
||||
{ "FQDN", 39, OT_INTERNAL | OT_RFC1035_NAME },
|
||||
- { "ntp-server", 56, 0 },
|
||||
+ { "ntp-server", 56, 0 /* OT_ADDR_LIST | OT_RFC1035_NAME */ },
|
||||
{ "bootfile-url", 59, OT_NAME },
|
||||
{ "bootfile-param", 60, OT_CSTRING },
|
||||
{ "client-arch", 61, 2 | OT_DEC }, /* RFC 5970 */
|
||||
diff --git a/src/dhcp6-protocol.h b/src/dhcp6-protocol.h
|
||||
index fee5d28..05560e8 100644
|
||||
--- a/src/dhcp6-protocol.h
|
||||
+++ b/src/dhcp6-protocol.h
|
||||
@@ -59,12 +59,16 @@
|
||||
#define OPTION6_REMOTE_ID 37
|
||||
#define OPTION6_SUBSCRIBER_ID 38
|
||||
#define OPTION6_FQDN 39
|
||||
+#define OPTION6_NTP_SERVER 56
|
||||
#define OPTION6_CLIENT_MAC 79
|
||||
|
||||
/* replace this with the real number when allocated.
|
||||
defining this also enables the relevant code. */
|
||||
/* #define OPTION6_PREFIX_CLASS 99 */
|
||||
|
||||
+#define NTP_SUBOPTION_SRV_ADDR 1
|
||||
+#define NTP_SUBOPTION_MC_ADDR 2
|
||||
+#define NTP_SUBOPTION_SRV_FQDN 3
|
||||
|
||||
#define DHCP6SUCCESS 0
|
||||
#define DHCP6UNSPEC 1
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index 6fa7bbd..1382c55 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -1245,6 +1245,12 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
|
||||
if (!found_dig)
|
||||
is_dec = is_addr = 0;
|
||||
|
||||
+#ifdef HAVE_DHCP6
|
||||
+ /* NTP server option takes hex, addresses or FQDN */
|
||||
+ if (is6 && new->opt == OPTION6_NTP_SERVER && !is_hex)
|
||||
+ opt_len |= is_addr6 ? OT_ADDR_LIST : OT_RFC1035_NAME;
|
||||
+#endif
|
||||
+
|
||||
/* We know that some options take addresses */
|
||||
if (opt_len & OT_ADDR_LIST)
|
||||
{
|
||||
@@ -1505,8 +1511,9 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
|
||||
}
|
||||
else if (comma && (opt_len & OT_RFC1035_NAME))
|
||||
{
|
||||
- unsigned char *p = NULL, *newp, *end;
|
||||
+ unsigned char *p = NULL, *q, *newp, *end;
|
||||
int len = 0;
|
||||
+ int header_size = (is6 && new->opt == OPTION6_NTP_SERVER) ? 4 : 0;
|
||||
arg = comma;
|
||||
comma = split(arg);
|
||||
|
||||
@@ -1516,7 +1523,7 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
|
||||
if (!dom)
|
||||
goto_err(_("bad domain in dhcp-option"));
|
||||
|
||||
- newp = opt_malloc(len + strlen(dom) + 2);
|
||||
+ newp = opt_malloc(len + header_size + strlen(dom) + 2);
|
||||
|
||||
if (p)
|
||||
{
|
||||
@@ -1525,8 +1532,14 @@ static int parse_dhcp_opt(char *errstr, char *arg, int flags)
|
||||
}
|
||||
|
||||
p = newp;
|
||||
- end = do_rfc1035_name(p + len, dom, NULL);
|
||||
+ q = p + len;
|
||||
+ end = do_rfc1035_name(q + header_size, dom, NULL);
|
||||
*end++ = 0;
|
||||
+ if (is6 && new->opt == OPTION6_NTP_SERVER)
|
||||
+ {
|
||||
+ PUTSHORT(NTP_SUBOPTION_SRV_FQDN, q);
|
||||
+ PUTSHORT(end - q - 2, q);
|
||||
+ }
|
||||
len = end - p;
|
||||
free(dom);
|
||||
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index 1f1aad8..0fa12ad 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -1380,23 +1380,39 @@ static struct dhcp_netid *add_options(struct state *state, int do_refresh)
|
||||
|
||||
for (a = (struct in6_addr *)opt_cfg->val, j = 0; j < opt_cfg->len; j+=IN6ADDRSZ, a++)
|
||||
{
|
||||
+ struct in6_addr *p = NULL;
|
||||
+
|
||||
if (IN6_IS_ADDR_UNSPECIFIED(a))
|
||||
{
|
||||
if (!add_local_addrs(state->context))
|
||||
- put_opt6(state->fallback, IN6ADDRSZ);
|
||||
+ p = state->fallback;
|
||||
}
|
||||
else if (IN6_IS_ADDR_ULA_ZERO(a))
|
||||
{
|
||||
if (!IN6_IS_ADDR_UNSPECIFIED(state->ula_addr))
|
||||
- put_opt6(state->ula_addr, IN6ADDRSZ);
|
||||
+ p = state->ula_addr;
|
||||
}
|
||||
else if (IN6_IS_ADDR_LINK_LOCAL_ZERO(a))
|
||||
{
|
||||
if (!IN6_IS_ADDR_UNSPECIFIED(state->ll_addr))
|
||||
- put_opt6(state->ll_addr, IN6ADDRSZ);
|
||||
+ p = state->ll_addr;
|
||||
+ }
|
||||
+ else
|
||||
+ p = a;
|
||||
+
|
||||
+ if (!p)
|
||||
+ continue;
|
||||
+ else if (opt_cfg->opt == OPTION6_NTP_SERVER)
|
||||
+ {
|
||||
+ if (IN6_IS_ADDR_MULTICAST(p))
|
||||
+ o1 = new_opt6(NTP_SUBOPTION_MC_ADDR);
|
||||
+ else
|
||||
+ o1 = new_opt6(NTP_SUBOPTION_SRV_ADDR);
|
||||
+ put_opt6(p, IN6ADDRSZ);
|
||||
+ end_opt6(o1);
|
||||
}
|
||||
else
|
||||
- put_opt6(a, IN6ADDRSZ);
|
||||
+ put_opt6(p, IN6ADDRSZ);
|
||||
}
|
||||
|
||||
end_opt6(o);
|
||||
--
|
||||
2.36.1
|
||||
|
||||
@ -1,895 +0,0 @@
|
||||
From 9b200103342c0909def9f8d9b97cfd889be6bfd8 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Mon, 3 Feb 2020 23:58:45 +0000
|
||||
Subject: [PATCH] Support prefixed ranges of ipv6 addresses in dhcp-host.
|
||||
|
||||
When a request matching the clid or mac address is
|
||||
recieved the server will iterate over all candidate
|
||||
addresses until it find's one that is not already
|
||||
leased to a different clid/iaid and advertise
|
||||
this address.
|
||||
|
||||
Using multiple reservations for a single host makes it
|
||||
possible to maintain a static leases only configuration
|
||||
which support network booting systems with UEFI firmware
|
||||
that request a new address (a new SOLICIT with a new IA_NA
|
||||
option using a new IAID) for different boot modes, for
|
||||
instance 'PXE over IPv6', and 'HTTP-Boot over IPv6'. Open
|
||||
Virtual Machine Firmware (OVMF) and most UEFI firmware
|
||||
build on the EDK2 code base exhibit this behaviour.
|
||||
|
||||
(cherry picked from commit 79aba0f10ad0157fb4f48afbbcb03f094caff97a)
|
||||
|
||||
Conflicts:
|
||||
CHANGELOG
|
||||
src/dhcp-common.c
|
||||
src/dnsmasq.h
|
||||
src/dhcp6.c
|
||||
|
||||
Extend 79aba0f10ad0157fb4f48afbbcb03f094caff97a for multiple IPv6 addresses.
|
||||
|
||||
(cherry picked from commit 137286e9baecf6a3ba97722ef1b49c851b531810)
|
||||
|
||||
Conflicts:
|
||||
man/dnsmasq.8
|
||||
src/dhcp-common.c
|
||||
src/dhcp6.c
|
||||
src/rfc3315.c
|
||||
src/option.c
|
||||
|
||||
Fix bug with prefixed wildcard addresses in 137286e9baecf6a3ba97722ef1b49c851b531810
|
||||
|
||||
(cherry picked from commit f064188032a829efdcf3988b24ac795ff52785ec)
|
||||
|
||||
Conflicts:
|
||||
src/rfc3315.c
|
||||
---
|
||||
man/dnsmasq.8 | 13 +-
|
||||
src/dhcp-common.c | 56 +++++---
|
||||
src/dhcp6.c | 51 +++----
|
||||
src/dnsmasq.h | 17 +--
|
||||
src/option.c | 402 ++++++++++++++++++++++++++++++------------------------
|
||||
src/rfc3315.c | 83 ++++++++++-
|
||||
6 files changed, 370 insertions(+), 252 deletions(-)
|
||||
|
||||
diff --git a/man/dnsmasq.8 b/man/dnsmasq.8
|
||||
index f52762f..2c9d9f6 100644
|
||||
--- a/man/dnsmasq.8
|
||||
+++ b/man/dnsmasq.8
|
||||
@@ -985,13 +985,20 @@ allowed to specify the client ID as text, like this:
|
||||
.B --dhcp-host=id:clientidastext,.....
|
||||
|
||||
A single
|
||||
-.B dhcp-host
|
||||
-may contain an IPv4 address or an IPv6 address, or both. IPv6 addresses must be bracketed by square brackets thus:
|
||||
+.B --dhcp-host
|
||||
+may contain an IPv4 address or one or more IPv6 addresses, or both. IPv6 addresses must be bracketed by square brackets thus:
|
||||
.B --dhcp-host=laptop,[1234::56]
|
||||
IPv6 addresses may contain only the host-identifier part:
|
||||
.B --dhcp-host=laptop,[::56]
|
||||
in which case they act as wildcards in constructed dhcp ranges, with
|
||||
-the appropriate network part inserted.
|
||||
+the appropriate network part inserted. For IPv6, an address may include a prefix length:
|
||||
+.B --dhcp-host=laptop,[1234:50/126]
|
||||
+which (in this case) specifies four addresses, 1234::50 to 1234::53. This (an the ability
|
||||
+to specify multiple addresses) is useful
|
||||
+when a host presents either a consistent name or hardware-ID, but varying DUIDs, since it allows
|
||||
+dnsmasq to honour the static address allocation but assign a different adddress for each DUID. This
|
||||
+typically occurs when chain netbooting, as each stage of the chain gets in turn allocates an address.
|
||||
+
|
||||
Note that in IPv6 DHCP, the hardware address may not be
|
||||
available, though it normally is for direct-connected clients, or
|
||||
clients using DHCP relays which support RFC 6939.
|
||||
diff --git a/src/dhcp-common.c b/src/dhcp-common.c
|
||||
index d9719d1..5d437dd 100644
|
||||
--- a/src/dhcp-common.c
|
||||
+++ b/src/dhcp-common.c
|
||||
@@ -271,26 +271,35 @@ static int is_config_in_context(struct dhcp_context *context, struct dhcp_config
|
||||
{
|
||||
if (!context) /* called via find_config() from lease_update_from_configs() */
|
||||
return 1;
|
||||
-
|
||||
- if (!(config->flags & (CONFIG_ADDR | CONFIG_ADDR6)))
|
||||
- return 1;
|
||||
|
||||
#ifdef HAVE_DHCP6
|
||||
- if ((context->flags & CONTEXT_V6) && (config->flags & CONFIG_WILDCARD))
|
||||
- return 1;
|
||||
-#endif
|
||||
+ if (context->flags & CONTEXT_V6)
|
||||
+ {
|
||||
+ struct addrlist *addr_list;
|
||||
|
||||
- for (; context; context = context->current)
|
||||
-#ifdef HAVE_DHCP6
|
||||
- if (context->flags & CONTEXT_V6)
|
||||
- {
|
||||
- if ((config->flags & CONFIG_ADDR6) && is_same_net6(&config->addr6, &context->start6, context->prefix))
|
||||
- return 1;
|
||||
- }
|
||||
- else
|
||||
+ if (!(config->flags & CONFIG_ADDR6))
|
||||
+ return 1;
|
||||
+
|
||||
+ for (; context; context = context->current)
|
||||
+ for (addr_list = config->addr6; addr_list; addr_list = addr_list->next)
|
||||
+ {
|
||||
+ if ((addr_list->flags & ADDRLIST_WILDCARD) && context->prefix == 64)
|
||||
+ return 1;
|
||||
+
|
||||
+ if (is_same_net6(&addr_list->addr.addr.addr6, &context->start6, context->prefix))
|
||||
+ return 1;
|
||||
+ }
|
||||
+ }
|
||||
+ else
|
||||
#endif
|
||||
- if ((config->flags & CONFIG_ADDR) && is_same_net(config->addr, context->start, context->netmask))
|
||||
+ {
|
||||
+ if (!(config->flags & CONFIG_ADDR))
|
||||
return 1;
|
||||
+
|
||||
+ for (; context; context = context->current)
|
||||
+ if ((config->flags & CONFIG_ADDR) && is_same_net(config->addr, context->start, context->netmask))
|
||||
+ return 1;
|
||||
+ }
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -418,10 +427,21 @@ void dhcp_update_configs(struct dhcp_config *configs)
|
||||
|
||||
#ifdef HAVE_DHCP6
|
||||
if (prot == AF_INET6 &&
|
||||
- (!(conf_tmp = config_find_by_address6(configs, &crec->addr.addr.addr.addr6, 128, 0)) || conf_tmp == config))
|
||||
+ (!(conf_tmp = config_find_by_address6(configs, NULL, 0, &crec->addr.addr.addr.addr6)) || conf_tmp == config))
|
||||
{
|
||||
- memcpy(&config->addr6, &crec->addr.addr.addr.addr6, IN6ADDRSZ);
|
||||
- config->flags |= CONFIG_ADDR6 | CONFIG_ADDR_HOSTS;
|
||||
+ /* host must have exactly one address if comming from /etc/hosts. */
|
||||
+ if (!config->addr6 && (config->addr6 = whine_malloc(sizeof(struct addrlist))))
|
||||
+ {
|
||||
+ config->addr6->next = NULL;
|
||||
+ config->addr6->flags = 0;
|
||||
+ }
|
||||
+
|
||||
+ if (config->addr6 && !config->addr6->next && !(config->addr6->flags & (ADDRLIST_WILDCARD|ADDRLIST_PREFIX)))
|
||||
+ {
|
||||
+ memcpy(&config->addr6->addr.addr.addr6, &crec->addr.addr.addr.addr6, IN6ADDRSZ);
|
||||
+ config->flags |= CONFIG_ADDR6 | CONFIG_ADDR6_HOSTS;
|
||||
+ }
|
||||
+
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
diff --git a/src/dhcp6.c b/src/dhcp6.c
|
||||
index 0853664..6f1f54e 100644
|
||||
--- a/src/dhcp6.c
|
||||
+++ b/src/dhcp6.c
|
||||
@@ -384,21 +384,26 @@ static int complete_context6(struct in6_addr *local, int prefix,
|
||||
return 1;
|
||||
}
|
||||
|
||||
-struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net, int prefix, u64 addr)
|
||||
+struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net, int prefix, struct in6_addr *addr)
|
||||
{
|
||||
struct dhcp_config *config;
|
||||
|
||||
for (config = configs; config; config = config->next)
|
||||
- if ((config->flags & CONFIG_ADDR6) &&
|
||||
- is_same_net6(&config->addr6, net, prefix) &&
|
||||
- (prefix == 128 || addr6part(&config->addr6) == addr))
|
||||
- return config;
|
||||
+ if (config->flags & CONFIG_ADDR6)
|
||||
+ {
|
||||
+ struct addrlist *addr_list;
|
||||
+
|
||||
+ for (addr_list = config->addr6; addr_list; addr_list = addr_list->next)
|
||||
+ if ((!net || is_same_net6(&addr_list->addr.addr.addr6, net, prefix) || ((addr_list->flags & ADDRLIST_WILDCARD) && prefix == 64)) &&
|
||||
+ is_same_net6(&addr_list->addr.addr.addr6, addr, (addr_list->flags & ADDRLIST_PREFIX) ? addr_list->prefixlen : 128))
|
||||
+ return config;
|
||||
+ }
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len, int temp_addr,
|
||||
- int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans)
|
||||
+ unsigned int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans)
|
||||
{
|
||||
/* Find a free address: exclude anything in use and anything allocated to
|
||||
a particular hwaddr/clientid/hostname in our configuration.
|
||||
@@ -453,16 +458,15 @@ struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned c
|
||||
for (d = context; d; d = d->current)
|
||||
if (addr == addr6part(&d->local6))
|
||||
break;
|
||||
+
|
||||
+ *ans = c->start6;
|
||||
+ setaddr6part (ans, addr);
|
||||
|
||||
if (!d &&
|
||||
!lease6_find_by_addr(&c->start6, c->prefix, addr) &&
|
||||
- !config_find_by_address6(daemon->dhcp_conf, &c->start6, c->prefix, addr))
|
||||
- {
|
||||
- *ans = c->start6;
|
||||
- setaddr6part (ans, addr);
|
||||
- return c;
|
||||
- }
|
||||
-
|
||||
+ !config_find_by_address6(daemon->dhcp_conf, &c->start6, c->prefix, ans))
|
||||
+ return c;
|
||||
+
|
||||
addr++;
|
||||
|
||||
if (addr == addr6part(&c->end6) + 1)
|
||||
@@ -516,27 +520,6 @@ struct dhcp_context *address6_valid(struct dhcp_context *context,
|
||||
return NULL;
|
||||
}
|
||||
|
||||
-int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr)
|
||||
-{
|
||||
- if (!config || !(config->flags & CONFIG_ADDR6))
|
||||
- return 0;
|
||||
-
|
||||
- if ((config->flags & CONFIG_WILDCARD) && context->prefix == 64)
|
||||
- {
|
||||
- *addr = context->start6;
|
||||
- setaddr6part(addr, addr6part(&config->addr6));
|
||||
- return 1;
|
||||
- }
|
||||
-
|
||||
- if (is_same_net6(&context->start6, &config->addr6, context->prefix))
|
||||
- {
|
||||
- *addr = config->addr6;
|
||||
- return 1;
|
||||
- }
|
||||
-
|
||||
- return 0;
|
||||
-}
|
||||
-
|
||||
void make_duid(time_t now)
|
||||
{
|
||||
(void)now;
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 6b18bb7..9437226 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -343,9 +343,11 @@ struct ds_config {
|
||||
struct ds_config *next;
|
||||
};
|
||||
|
||||
-#define ADDRLIST_LITERAL 1
|
||||
-#define ADDRLIST_IPV6 2
|
||||
-#define ADDRLIST_REVONLY 4
|
||||
+#define ADDRLIST_LITERAL 1
|
||||
+#define ADDRLIST_IPV6 2
|
||||
+#define ADDRLIST_REVONLY 4
|
||||
+#define ADDRLIST_PREFIX 8
|
||||
+#define ADDRLIST_WILDCARD 16
|
||||
|
||||
struct addrlist {
|
||||
struct all_addr addr;
|
||||
@@ -748,7 +750,7 @@ struct dhcp_config {
|
||||
char *hostname, *domain;
|
||||
struct dhcp_netid_list *netid;
|
||||
#ifdef HAVE_DHCP6
|
||||
- struct in6_addr addr6;
|
||||
+ struct addrlist *addr6;
|
||||
#endif
|
||||
struct in_addr addr;
|
||||
time_t decline_time;
|
||||
@@ -770,7 +772,7 @@ struct dhcp_config {
|
||||
#define CONFIG_DECLINED 1024 /* address declined by client */
|
||||
#define CONFIG_BANK 2048 /* from dhcp hosts file */
|
||||
#define CONFIG_ADDR6 4096
|
||||
-#define CONFIG_WILDCARD 8192
|
||||
+#define CONFIG_ADDR6_HOSTS 16384 /* address added by from /etc/hosts */
|
||||
|
||||
struct dhcp_opt {
|
||||
int opt, len, flags;
|
||||
@@ -1463,8 +1465,7 @@ int get_incoming_mark(union mysockaddr *peer_addr, struct all_addr *local_addr,
|
||||
void dhcp6_init(void);
|
||||
void dhcp6_packet(time_t now);
|
||||
struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len, int temp_addr,
|
||||
- int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans);
|
||||
-int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr);
|
||||
+ unsigned int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans);
|
||||
struct dhcp_context *address6_available(struct dhcp_context *context,
|
||||
struct in6_addr *taddr,
|
||||
struct dhcp_netid *netids,
|
||||
@@ -1474,7 +1475,7 @@ struct dhcp_context *address6_valid(struct dhcp_context *context,
|
||||
struct dhcp_netid *netids,
|
||||
int plain_range);
|
||||
struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct in6_addr *net,
|
||||
- int prefix, u64 addr);
|
||||
+ int prefix, struct in6_addr *addr);
|
||||
void make_duid(time_t now);
|
||||
void dhcp_construct_contexts(time_t now);
|
||||
void get_client_mac(struct in6_addr *client, int iface, unsigned char *mac,
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index b12183b..ea70ee3 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -1010,15 +1010,30 @@ static void dhcp_config_free(struct dhcp_config *config)
|
||||
if (config)
|
||||
{
|
||||
struct hwaddr_config *hwaddr = config->hwaddr;
|
||||
+
|
||||
while (hwaddr)
|
||||
{
|
||||
struct hwaddr_config *tmp = hwaddr;
|
||||
hwaddr = hwaddr->next;
|
||||
free(tmp);
|
||||
}
|
||||
+
|
||||
dhcp_netid_list_free(config->netid);
|
||||
+
|
||||
if (config->flags & CONFIG_CLID)
|
||||
free(config->clid);
|
||||
+
|
||||
+ if (config->flags & CONFIG_ADDR6)
|
||||
+ {
|
||||
+ struct addrlist *addr, *tmp;
|
||||
+
|
||||
+ for (addr = config->addr6; addr; addr = tmp)
|
||||
+ {
|
||||
+ tmp = addr->next;
|
||||
+ free(addr);
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
free(config);
|
||||
}
|
||||
}
|
||||
@@ -3143,8 +3158,6 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
case LOPT_BANK:
|
||||
case 'G': /* --dhcp-host */
|
||||
{
|
||||
- int j, k = 0;
|
||||
- char *a[7] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL };
|
||||
struct dhcp_config *new;
|
||||
struct in_addr in;
|
||||
|
||||
@@ -3155,197 +3168,222 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
new->hwaddr = NULL;
|
||||
new->netid = NULL;
|
||||
new->clid = NULL;
|
||||
+ new->addr6 = NULL;
|
||||
|
||||
- if ((a[0] = arg))
|
||||
- for (k = 1; k < 7; k++)
|
||||
- if (!(a[k] = split(a[k-1])))
|
||||
- break;
|
||||
-
|
||||
- for (j = 0; j < k; j++)
|
||||
- if (strchr(a[j], ':')) /* ethernet address, netid or binary CLID */
|
||||
- {
|
||||
- char *arg = a[j];
|
||||
-
|
||||
- if ((arg[0] == 'i' || arg[0] == 'I') &&
|
||||
- (arg[1] == 'd' || arg[1] == 'D') &&
|
||||
- arg[2] == ':')
|
||||
- {
|
||||
- if (arg[3] == '*')
|
||||
- new->flags |= CONFIG_NOCLID;
|
||||
- else
|
||||
- {
|
||||
- int len;
|
||||
- arg += 3; /* dump id: */
|
||||
- if (strchr(arg, ':'))
|
||||
- len = parse_hex(arg, (unsigned char *)arg, -1, NULL, NULL);
|
||||
- else
|
||||
- {
|
||||
- unhide_metas(arg);
|
||||
- len = (int) strlen(arg);
|
||||
- }
|
||||
-
|
||||
- if (len == -1)
|
||||
- {
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("bad hex constant"));
|
||||
- }
|
||||
- else if ((new->clid = opt_malloc(len)))
|
||||
- {
|
||||
- new->flags |= CONFIG_CLID;
|
||||
- new->clid_len = len;
|
||||
- memcpy(new->clid, arg, len);
|
||||
- }
|
||||
- }
|
||||
- }
|
||||
- /* dhcp-host has strange backwards-compat needs. */
|
||||
- else if (strstr(arg, "net:") == arg || strstr(arg, "set:") == arg)
|
||||
- {
|
||||
- struct dhcp_netid_list *newlist = opt_malloc(sizeof(struct dhcp_netid_list));
|
||||
- newlist->next = new->netid;
|
||||
- new->netid = newlist;
|
||||
- newlist->list = dhcp_netid_create(arg+4, NULL);
|
||||
- }
|
||||
- else if (strstr(arg, "tag:") == arg)
|
||||
- {
|
||||
-
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("cannot match tags in --dhcp-host"));
|
||||
- }
|
||||
+ while (arg)
|
||||
+ {
|
||||
+ comma = split(arg);
|
||||
+ if (strchr(arg, ':')) /* ethernet address, netid or binary CLID */
|
||||
+ {
|
||||
+ if ((arg[0] == 'i' || arg[0] == 'I') &&
|
||||
+ (arg[1] == 'd' || arg[1] == 'D') &&
|
||||
+ arg[2] == ':')
|
||||
+ {
|
||||
+ if (arg[3] == '*')
|
||||
+ new->flags |= CONFIG_NOCLID;
|
||||
+ else
|
||||
+ {
|
||||
+ int len;
|
||||
+ arg += 3; /* dump id: */
|
||||
+ if (strchr(arg, ':'))
|
||||
+ len = parse_hex(arg, (unsigned char *)arg, -1, NULL, NULL);
|
||||
+ else
|
||||
+ {
|
||||
+ unhide_metas(arg);
|
||||
+ len = (int) strlen(arg);
|
||||
+ }
|
||||
+
|
||||
+ if (len == -1)
|
||||
+ {
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("bad hex constant"));
|
||||
+ }
|
||||
+ else if ((new->clid = opt_malloc(len)))
|
||||
+ {
|
||||
+ new->flags |= CONFIG_CLID;
|
||||
+ new->clid_len = len;
|
||||
+ memcpy(new->clid, arg, len);
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+ /* dhcp-host has strange backwards-compat needs. */
|
||||
+ else if (strstr(arg, "net:") == arg || strstr(arg, "set:") == arg)
|
||||
+ {
|
||||
+ struct dhcp_netid_list *newlist = opt_malloc(sizeof(struct dhcp_netid_list));
|
||||
+ newlist->next = new->netid;
|
||||
+ new->netid = newlist;
|
||||
+ newlist->list = dhcp_netid_create(arg+4, NULL);
|
||||
+ }
|
||||
+ else if (strstr(arg, "tag:") == arg)
|
||||
+ {
|
||||
+
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("cannot match tags in --dhcp-host"));
|
||||
+ }
|
||||
#ifdef HAVE_DHCP6
|
||||
- else if (arg[0] == '[' && arg[strlen(arg)-1] == ']')
|
||||
- {
|
||||
- arg[strlen(arg)-1] = 0;
|
||||
- arg++;
|
||||
-
|
||||
- if (!inet_pton(AF_INET6, arg, &new->addr6))
|
||||
- {
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("bad IPv6 address"));
|
||||
- }
|
||||
-
|
||||
- for (i= 0; i < 8; i++)
|
||||
- if (new->addr6.s6_addr[i] != 0)
|
||||
- break;
|
||||
+ else if (arg[0] == '[' && arg[strlen(arg)-1] == ']')
|
||||
+ {
|
||||
+ char *pref;
|
||||
+ struct in6_addr in6;
|
||||
+ struct addrlist *new_addr;
|
||||
+
|
||||
+ arg[strlen(arg)-1] = 0;
|
||||
+ arg++;
|
||||
+ pref = split_chr(arg, '/');
|
||||
+
|
||||
+ if (!inet_pton(AF_INET6, arg, &in6))
|
||||
+ {
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("bad IPv6 address"));
|
||||
+ }
|
||||
|
||||
- /* set WILDCARD if network part all zeros */
|
||||
- if (i == 8)
|
||||
- new->flags |= CONFIG_WILDCARD;
|
||||
+ new_addr = opt_malloc(sizeof(struct addrlist));
|
||||
+ new_addr->next = new->addr6;
|
||||
+ new_addr->flags = 0;
|
||||
+ new_addr->addr.addr.addr6 = in6;
|
||||
+ new->addr6 = new_addr;
|
||||
+
|
||||
+ if (pref)
|
||||
+ {
|
||||
+ u64 addrpart = addr6part(&in6);
|
||||
+
|
||||
+ if (!atoi_check(pref, &new_addr->prefixlen) ||
|
||||
+ new_addr->prefixlen > 128 ||
|
||||
+ (((1<<(128-new_addr->prefixlen))-1) & addrpart) != 0)
|
||||
+ {
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("bad IPv6 prefix"));
|
||||
+ }
|
||||
+
|
||||
+ new_addr->flags |= ADDRLIST_PREFIX;
|
||||
+ }
|
||||
|
||||
- new->flags |= CONFIG_ADDR6;
|
||||
- }
|
||||
+ for (i= 0; i < 8; i++)
|
||||
+ if (in6.s6_addr[i] != 0)
|
||||
+ break;
|
||||
+
|
||||
+ /* set WILDCARD if network part all zeros */
|
||||
+ if (i == 8)
|
||||
+ new_addr->flags |= ADDRLIST_WILDCARD;
|
||||
+
|
||||
+ new->flags |= CONFIG_ADDR6;
|
||||
+ }
|
||||
#endif
|
||||
- else
|
||||
- {
|
||||
- struct hwaddr_config *newhw = opt_malloc(sizeof(struct hwaddr_config));
|
||||
- if ((newhw->hwaddr_len = parse_hex(a[j], newhw->hwaddr, DHCP_CHADDR_MAX,
|
||||
- &newhw->wildcard_mask, &newhw->hwaddr_type)) == -1)
|
||||
- {
|
||||
- free(newhw);
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("bad hex constant"));
|
||||
- }
|
||||
- else
|
||||
- {
|
||||
- newhw->next = new->hwaddr;
|
||||
- new->hwaddr = newhw;
|
||||
- }
|
||||
- }
|
||||
- }
|
||||
- else if (strchr(a[j], '.') && (inet_pton(AF_INET, a[j], &in) > 0))
|
||||
- {
|
||||
- struct dhcp_config *configs;
|
||||
-
|
||||
- new->addr = in;
|
||||
- new->flags |= CONFIG_ADDR;
|
||||
-
|
||||
- /* If the same IP appears in more than one host config, then DISCOVER
|
||||
- for one of the hosts will get the address, but REQUEST will be NAKed,
|
||||
- since the address is reserved by the other one -> protocol loop. */
|
||||
- for (configs = daemon->dhcp_conf; configs; configs = configs->next)
|
||||
- if ((configs->flags & CONFIG_ADDR) && configs->addr.s_addr == in.s_addr)
|
||||
+ else
|
||||
{
|
||||
- sprintf(errstr, _("duplicate dhcp-host IP address %s"), inet_ntoa(in));
|
||||
- return 0;
|
||||
- }
|
||||
- }
|
||||
- else
|
||||
- {
|
||||
- char *cp, *lastp = NULL, last = 0;
|
||||
- int fac = 1, isdig = 0;
|
||||
-
|
||||
- if (strlen(a[j]) > 1)
|
||||
- {
|
||||
- lastp = a[j] + strlen(a[j]) - 1;
|
||||
- last = *lastp;
|
||||
- switch (last)
|
||||
+ struct hwaddr_config *newhw = opt_malloc(sizeof(struct hwaddr_config));
|
||||
+ if ((newhw->hwaddr_len = parse_hex(arg, newhw->hwaddr, DHCP_CHADDR_MAX,
|
||||
+ &newhw->wildcard_mask, &newhw->hwaddr_type)) == -1)
|
||||
+ {
|
||||
+ free(newhw);
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("bad hex constant"));
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ newhw->next = new->hwaddr;
|
||||
+ new->hwaddr = newhw;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+ else if (strchr(arg, '.') && (inet_pton(AF_INET, arg, &in) > 0))
|
||||
+ {
|
||||
+ struct dhcp_config *configs;
|
||||
+
|
||||
+ new->addr = in;
|
||||
+ new->flags |= CONFIG_ADDR;
|
||||
+
|
||||
+ /* If the same IP appears in more than one host config, then DISCOVER
|
||||
+ for one of the hosts will get the address, but REQUEST will be NAKed,
|
||||
+ since the address is reserved by the other one -> protocol loop. */
|
||||
+ for (configs = daemon->dhcp_conf; configs; configs = configs->next)
|
||||
+ if ((configs->flags & CONFIG_ADDR) && configs->addr.s_addr == in.s_addr)
|
||||
{
|
||||
- case 'w':
|
||||
- case 'W':
|
||||
- fac *= 7;
|
||||
- /* fall through */
|
||||
- case 'd':
|
||||
- case 'D':
|
||||
- fac *= 24;
|
||||
- /* fall through */
|
||||
- case 'h':
|
||||
- case 'H':
|
||||
- fac *= 60;
|
||||
- /* fall through */
|
||||
- case 'm':
|
||||
- case 'M':
|
||||
- fac *= 60;
|
||||
- /* fall through */
|
||||
- case 's':
|
||||
- case 'S':
|
||||
- *lastp = 0;
|
||||
- }
|
||||
- }
|
||||
-
|
||||
- for (cp = a[j]; *cp; cp++)
|
||||
- if (isdigit((unsigned char)*cp))
|
||||
- isdig = 1;
|
||||
- else if (*cp != ' ')
|
||||
- break;
|
||||
+ sprintf(errstr, _("duplicate dhcp-host IP address %s"), inet_ntoa(in));
|
||||
+ return 0;
|
||||
+ }
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ char *cp, *lastp = NULL, last = 0;
|
||||
+ int fac = 1, isdig = 0;
|
||||
+
|
||||
+ if (strlen(arg) > 1)
|
||||
+ {
|
||||
+ lastp = arg + strlen(arg) - 1;
|
||||
+ last = *lastp;
|
||||
+ switch (last)
|
||||
+ {
|
||||
+ case 'w':
|
||||
+ case 'W':
|
||||
+ fac *= 7;
|
||||
+ /* fall through */
|
||||
+ case 'd':
|
||||
+ case 'D':
|
||||
+ fac *= 24;
|
||||
+ /* fall through */
|
||||
+ case 'h':
|
||||
+ case 'H':
|
||||
+ fac *= 60;
|
||||
+ /* fall through */
|
||||
+ case 'm':
|
||||
+ case 'M':
|
||||
+ fac *= 60;
|
||||
+ /* fall through */
|
||||
+ case 's':
|
||||
+ case 'S':
|
||||
+ *lastp = 0;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ for (cp = arg; *cp; cp++)
|
||||
+ if (isdigit((unsigned char)*cp))
|
||||
+ isdig = 1;
|
||||
+ else if (*cp != ' ')
|
||||
+ break;
|
||||
+
|
||||
+ if (*cp)
|
||||
+ {
|
||||
+ if (lastp)
|
||||
+ *lastp = last;
|
||||
+ if (strcmp(arg, "infinite") == 0)
|
||||
+ {
|
||||
+ new->lease_time = 0xffffffff;
|
||||
+ new->flags |= CONFIG_TIME;
|
||||
+ }
|
||||
+ else if (strcmp(arg, "ignore") == 0)
|
||||
+ new->flags |= CONFIG_DISABLE;
|
||||
+ else
|
||||
+ {
|
||||
+ if (!(new->hostname = canonicalise_opt(arg)) ||
|
||||
+ !legal_hostname(new->hostname))
|
||||
+ {
|
||||
+ dhcp_config_free(new);
|
||||
+ ret_err(_("bad DHCP host name"));
|
||||
+ }
|
||||
+
|
||||
+ new->flags |= CONFIG_NAME;
|
||||
+ new->domain = strip_hostname(new->hostname);
|
||||
+ }
|
||||
+ }
|
||||
+ else if (isdig)
|
||||
+ {
|
||||
+ new->lease_time = atoi(arg) * fac;
|
||||
+ /* Leases of a minute or less confuse
|
||||
+ some clients, notably Apple's */
|
||||
+ if (new->lease_time < 120)
|
||||
+ new->lease_time = 120;
|
||||
+ new->flags |= CONFIG_TIME;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ arg = comma;
|
||||
+ }
|
||||
|
||||
- if (*cp)
|
||||
- {
|
||||
- if (lastp)
|
||||
- *lastp = last;
|
||||
- if (strcmp(a[j], "infinite") == 0)
|
||||
- {
|
||||
- new->lease_time = 0xffffffff;
|
||||
- new->flags |= CONFIG_TIME;
|
||||
- }
|
||||
- else if (strcmp(a[j], "ignore") == 0)
|
||||
- new->flags |= CONFIG_DISABLE;
|
||||
- else
|
||||
- {
|
||||
- if (!(new->hostname = canonicalise_opt(a[j])) ||
|
||||
- !legal_hostname(new->hostname))
|
||||
- {
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("bad DHCP host name"));
|
||||
- }
|
||||
-
|
||||
- new->flags |= CONFIG_NAME;
|
||||
- new->domain = strip_hostname(new->hostname);
|
||||
- }
|
||||
- }
|
||||
- else if (isdig)
|
||||
- {
|
||||
- new->lease_time = atoi(a[j]) * fac;
|
||||
- /* Leases of a minute or less confuse
|
||||
- some clients, notably Apple's */
|
||||
- if (new->lease_time < 120)
|
||||
- new->lease_time = 120;
|
||||
- new->flags |= CONFIG_TIME;
|
||||
- }
|
||||
- }
|
||||
-
|
||||
daemon->dhcp_conf = new;
|
||||
break;
|
||||
}
|
||||
-
|
||||
+
|
||||
case LOPT_TAG_IF: /* --tag-if */
|
||||
{
|
||||
struct tag_if *new = opt_malloc(sizeof(struct tag_if));
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index ee1cf17..ee58b57 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -55,6 +55,8 @@ static struct prefix_class *prefix_class_from_context(struct dhcp_context *conte
|
||||
static void mark_context_used(struct state *state, struct in6_addr *addr);
|
||||
static void mark_config_used(struct dhcp_context *context, struct in6_addr *addr);
|
||||
static int check_address(struct state *state, struct in6_addr *addr);
|
||||
+static int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr, struct state *state);
|
||||
+static int config_implies(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr);
|
||||
static void add_address(struct state *state, struct dhcp_context *context, unsigned int lease_time, void *ia_option,
|
||||
unsigned int *min_time, struct in6_addr *addr, time_t now);
|
||||
static void update_leases(struct state *state, struct dhcp_context *context, struct in6_addr *addr, unsigned int lease_time, time_t now);
|
||||
@@ -717,7 +719,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
/* If the client asks for an address on the same network as a configured address,
|
||||
offer the configured address instead, to make moving to newly-configured
|
||||
addresses automatic. */
|
||||
- if (!(c->flags & CONTEXT_CONF_USED) && config_valid(config, c, &addr) && check_address(state, &addr))
|
||||
+ if (!(c->flags & CONTEXT_CONF_USED) && config_valid(config, c, &addr, state))
|
||||
{
|
||||
req_addr = addr;
|
||||
mark_config_used(c, &addr);
|
||||
@@ -745,8 +747,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
for (c = state->context; c; c = c->current)
|
||||
if (!(c->flags & CONTEXT_CONF_USED) &&
|
||||
match_netid(c->filter, solicit_tags, plain_range) &&
|
||||
- config_valid(config, c, &addr) &&
|
||||
- check_address(state, &addr))
|
||||
+ config_valid(config, c, &addr, state))
|
||||
{
|
||||
mark_config_used(state->context, &addr);
|
||||
if (have_config(config, CONFIG_TIME))
|
||||
@@ -895,14 +896,13 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
struct in6_addr req_addr;
|
||||
struct dhcp_context *dynamic, *c;
|
||||
unsigned int lease_time;
|
||||
- struct in6_addr addr;
|
||||
int config_ok = 0;
|
||||
|
||||
/* align. */
|
||||
memcpy(&req_addr, opt6_ptr(ia_option, 0), IN6ADDRSZ);
|
||||
|
||||
if ((c = address6_valid(state->context, &req_addr, tagif, 1)))
|
||||
- config_ok = config_valid(config, c, &addr) && IN6_ARE_ADDR_EQUAL(&addr, &req_addr);
|
||||
+ config_ok = config_implies(config, c, &req_addr);
|
||||
|
||||
if ((dynamic = address6_available(state->context, &req_addr, tagif, 1)) || c)
|
||||
{
|
||||
@@ -1032,12 +1032,11 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
if ((this_context = address6_available(state->context, &req_addr, tagif, 1)) ||
|
||||
(this_context = address6_valid(state->context, &req_addr, tagif, 1)))
|
||||
{
|
||||
- struct in6_addr addr;
|
||||
unsigned int lease_time;
|
||||
|
||||
get_context_tag(state, this_context);
|
||||
|
||||
- if (config_valid(config, this_context, &addr) && IN6_ARE_ADDR_EQUAL(&addr, &req_addr) && have_config(config, CONFIG_TIME))
|
||||
+ if (config_implies(config, this_context, &req_addr) && have_config(config, CONFIG_TIME))
|
||||
lease_time = config->lease_time;
|
||||
else
|
||||
lease_time = this_context->lease_time;
|
||||
@@ -1760,6 +1759,76 @@ static int check_address(struct state *state, struct in6_addr *addr)
|
||||
}
|
||||
|
||||
|
||||
+/* return true of *addr could have been generated from config. */
|
||||
+static int config_implies(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr)
|
||||
+{
|
||||
+ int prefix;
|
||||
+ struct in6_addr wild_addr;
|
||||
+ struct addrlist *addr_list;
|
||||
+
|
||||
+ if (!config || !(config->flags & CONFIG_ADDR6))
|
||||
+ return 0;
|
||||
+
|
||||
+ for (addr_list = config->addr6; addr_list; addr_list = addr_list->next)
|
||||
+ {
|
||||
+ prefix = (addr_list->flags & ADDRLIST_PREFIX) ? addr_list->prefixlen : 128;
|
||||
+ wild_addr = addr_list->addr.addr.addr6;
|
||||
+
|
||||
+ if ((addr_list->flags & ADDRLIST_WILDCARD) && context->prefix == 64)
|
||||
+ {
|
||||
+ wild_addr = context->start6;
|
||||
+ setaddr6part(&wild_addr, addr6part(&addr_list->addr.addr.addr6));
|
||||
+ }
|
||||
+ else if (!is_same_net6(&context->start6, addr, context->prefix))
|
||||
+ continue;
|
||||
+
|
||||
+ if (is_same_net6(&wild_addr, addr, prefix))
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int config_valid(struct dhcp_config *config, struct dhcp_context *context, struct in6_addr *addr, struct state *state)
|
||||
+{
|
||||
+ u64 addrpart, i, addresses;
|
||||
+ struct addrlist *addr_list;
|
||||
+
|
||||
+ if (!config || !(config->flags & CONFIG_ADDR6))
|
||||
+ return 0;
|
||||
+
|
||||
+ for (addr_list = config->addr6; addr_list; addr_list = addr_list->next)
|
||||
+ {
|
||||
+ addrpart = addr6part(&addr_list->addr.addr.addr6);
|
||||
+ addresses = 1;
|
||||
+
|
||||
+ if (addr_list->flags & ADDRLIST_PREFIX)
|
||||
+ addresses = 1<<(128-addr_list->prefixlen);
|
||||
+
|
||||
+ if ((addr_list->flags & ADDRLIST_WILDCARD))
|
||||
+ {
|
||||
+ if (context->prefix != 64)
|
||||
+ continue;
|
||||
+
|
||||
+ *addr = context->start6;
|
||||
+ }
|
||||
+ else if (is_same_net6(&context->start6, &addr_list->addr.addr.addr6, context->prefix))
|
||||
+ *addr = addr_list->addr.addr.addr6;
|
||||
+ else
|
||||
+ continue;
|
||||
+
|
||||
+ for (i = 0 ; i < addresses; i++)
|
||||
+ {
|
||||
+ setaddr6part(addr, addrpart+i);
|
||||
+
|
||||
+ if (check_address(state, addr))
|
||||
+ return 1;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
/* Calculate valid and preferred times to send in leases/renewals.
|
||||
|
||||
Inputs are:
|
||||
--
|
||||
1.8.3.1
|
||||
|
||||
@ -1,62 +0,0 @@
|
||||
From 3d113137fd64cd0723cbecab6a36a75d3ecfb0a6 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Harald=20Jens=C3=A5s?= <hjensas@redhat.com>
|
||||
Date: Thu, 7 May 2020 00:33:54 +0200
|
||||
Subject: [PATCH 1/1] Fix regression in s_config_in_context() method
|
||||
|
||||
Prior to commit 137286e9baecf6a3ba97722ef1b49c851b531810
|
||||
a config would not be considered in context if:
|
||||
a) it has no address family flags set
|
||||
b) it has the address family flag of current context set
|
||||
|
||||
Since above commit config is considered in context if the
|
||||
address family is the opposite of current context.
|
||||
|
||||
The result is that a config with two dhcp-host records,
|
||||
one for IPv6 and another for IPv4 no longer works, for
|
||||
example with the below config the config with the IPv6
|
||||
address would be considered in context for a DHCP(v4)
|
||||
request.
|
||||
dhcp-host=52:54:00:bc:c3:fd,172.20.0.11,host2
|
||||
dhcp-host=52:54:00:bc:c3:fd,[fd12:3456:789a:1::aadd],host2
|
||||
|
||||
This commit restores the previous behavior.
|
||||
---
|
||||
src/dhcp-common.c | 10 +++++++---
|
||||
1 file changed, 7 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/dhcp-common.c b/src/dhcp-common.c
|
||||
index eae9886..ffc78ca 100644
|
||||
--- a/src/dhcp-common.c
|
||||
+++ b/src/dhcp-common.c
|
||||
@@ -280,14 +280,18 @@ static int is_config_in_context(struct dhcp_context *context, struct dhcp_config
|
||||
{
|
||||
if (!context) /* called via find_config() from lease_update_from_configs() */
|
||||
return 1;
|
||||
-
|
||||
+
|
||||
+ /* No address present in config == in context */
|
||||
+ if (!(config->flags & (CONFIG_ADDR | CONFIG_ADDR6)))
|
||||
+ return 1;
|
||||
+
|
||||
#ifdef HAVE_DHCP6
|
||||
if (context->flags & CONTEXT_V6)
|
||||
{
|
||||
struct addrlist *addr_list;
|
||||
|
||||
if (!(config->flags & CONFIG_ADDR6))
|
||||
- return 1;
|
||||
+ return 0;
|
||||
|
||||
for (; context; context = context->current)
|
||||
for (addr_list = config->addr6; addr_list; addr_list = addr_list->next)
|
||||
@@ -303,7 +307,7 @@ static int is_config_in_context(struct dhcp_context *context, struct dhcp_config
|
||||
#endif
|
||||
{
|
||||
if (!(config->flags & CONFIG_ADDR))
|
||||
- return 1;
|
||||
+ return 0;
|
||||
|
||||
for (; context; context = context->current)
|
||||
if ((config->flags & CONFIG_ADDR) && is_same_net(config->addr, context->start, context->netmask))
|
||||
--
|
||||
2.25.4
|
||||
@ -1,322 +0,0 @@
|
||||
From dd04a0d90d2fca66b5f91952ae7286c5de1714f1 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Fri, 7 Feb 2020 21:05:54 +0000
|
||||
Subject: [PATCH] Add tag filtering of dhcp-host directives.
|
||||
|
||||
(cherry picked from commit 52ec7836139e7a11374971905e5ac0d2d02e32c0)
|
||||
|
||||
Conflicts:
|
||||
CHANGELOG
|
||||
src/rfc3315.c
|
||||
---
|
||||
man/dnsmasq.8 | 5 ++++-
|
||||
src/dhcp-common.c | 42 ++++++++++++++++++++++++++++++++----------
|
||||
src/dnsmasq.h | 4 +++-
|
||||
src/lease.c | 2 +-
|
||||
src/option.c | 14 ++++++--------
|
||||
src/rfc2131.c | 6 +++---
|
||||
src/rfc3315.c | 49 ++++++++++++++++++++++---------------------------
|
||||
7 files changed, 71 insertions(+), 51 deletions(-)
|
||||
|
||||
diff --git a/man/dnsmasq.8 b/man/dnsmasq.8
|
||||
index 2c9d9f6..a59b06f 100644
|
||||
--- a/man/dnsmasq.8
|
||||
+++ b/man/dnsmasq.8
|
||||
@@ -953,7 +953,7 @@ is also included, as described in RFC-3775 section 7.3.
|
||||
tells dnsmasq to advertise the prefix without the on-link (aka L) bit set.
|
||||
|
||||
.TP
|
||||
-.B \-G, --dhcp-host=[<hwaddr>][,id:<client_id>|*][,set:<tag>][,<ipaddr>][,<hostname>][,<lease_time>][,ignore]
|
||||
+.B \-G, --dhcp-host=[<hwaddr>][,id:<client_id>|*][,set:<tag>][tag:<tag>][,<ipaddr>][,<hostname>][,<lease_time>][,ignore]
|
||||
Specify per host parameters for the DHCP server. This allows a machine
|
||||
with a particular hardware address to be always allocated the same
|
||||
hostname, IP address and lease time. A hostname specified like this
|
||||
@@ -1038,6 +1038,9 @@ ignore requests from unknown machines using
|
||||
.B --dhcp-ignore=tag:!known
|
||||
If the host matches only a dhcp-host directive which cannot
|
||||
be used because it specifies an address on different subnet, the tag "known-othernet" is set.
|
||||
+
|
||||
+The tag:<tag> construct filters which dhcp-host directives are used. Tagged directives are used in preference to untagged ones.
|
||||
+
|
||||
Ethernet addresses (but not client-ids) may have
|
||||
wildcard bytes, so for example
|
||||
.B --dhcp-host=00:20:e0:3b:13:*,ignore
|
||||
diff --git a/src/dhcp-common.c b/src/dhcp-common.c
|
||||
index 5d437dd..71e9e5b 100644
|
||||
--- a/src/dhcp-common.c
|
||||
+++ b/src/dhcp-common.c
|
||||
@@ -304,11 +304,12 @@ static int is_config_in_context(struct dhcp_context *context, struct dhcp_config
|
||||
return 0;
|
||||
}
|
||||
|
||||
-struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
- struct dhcp_context *context,
|
||||
- unsigned char *clid, int clid_len,
|
||||
- unsigned char *hwaddr, int hw_len,
|
||||
- int hw_type, char *hostname)
|
||||
+static struct dhcp_config *find_config_match(struct dhcp_config *configs,
|
||||
+ struct dhcp_context *context,
|
||||
+ unsigned char *clid, int clid_len,
|
||||
+ unsigned char *hwaddr, int hw_len,
|
||||
+ int hw_type, char *hostname,
|
||||
+ struct dhcp_netid *tags, int tag_not_needed)
|
||||
{
|
||||
int count, new;
|
||||
struct dhcp_config *config, *candidate;
|
||||
@@ -320,7 +321,9 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
{
|
||||
if (config->clid_len == clid_len &&
|
||||
memcmp(config->clid, clid, clid_len) == 0 &&
|
||||
- is_config_in_context(context, config))
|
||||
+ is_config_in_context(context, config) &&
|
||||
+ match_netid(config->filter, tags, tag_not_needed))
|
||||
+
|
||||
return config;
|
||||
|
||||
/* dhcpcd prefixes ASCII client IDs by zero which is wrong, but we try and
|
||||
@@ -328,7 +331,8 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
see lease_update_from_configs() */
|
||||
if ((!context || !(context->flags & CONTEXT_V6)) && *clid == 0 && config->clid_len == clid_len-1 &&
|
||||
memcmp(config->clid, clid+1, clid_len-1) == 0 &&
|
||||
- is_config_in_context(context, config))
|
||||
+ is_config_in_context(context, config) &&
|
||||
+ match_netid(config->filter, tags, tag_not_needed))
|
||||
return config;
|
||||
}
|
||||
|
||||
@@ -336,14 +340,16 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
if (hwaddr)
|
||||
for (config = configs; config; config = config->next)
|
||||
if (config_has_mac(config, hwaddr, hw_len, hw_type) &&
|
||||
- is_config_in_context(context, config))
|
||||
+ is_config_in_context(context, config) &&
|
||||
+ match_netid(config->filter, tags, tag_not_needed))
|
||||
return config;
|
||||
|
||||
if (hostname && context)
|
||||
for (config = configs; config; config = config->next)
|
||||
if ((config->flags & CONFIG_NAME) &&
|
||||
hostname_isequal(config->hostname, hostname) &&
|
||||
- is_config_in_context(context, config))
|
||||
+ is_config_in_context(context, config) &&
|
||||
+ match_netid(config->filter, tags, tag_not_needed))
|
||||
return config;
|
||||
|
||||
|
||||
@@ -352,7 +358,8 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
|
||||
/* use match with fewest wildcard octets */
|
||||
for (candidate = NULL, count = 0, config = configs; config; config = config->next)
|
||||
- if (is_config_in_context(context, config))
|
||||
+ if (is_config_in_context(context, config) &&
|
||||
+ match_netid(config->filter, tags, tag_not_needed))
|
||||
for (conf_addr = config->hwaddr; conf_addr; conf_addr = conf_addr->next)
|
||||
if (conf_addr->wildcard_mask != 0 &&
|
||||
conf_addr->hwaddr_len == hw_len &&
|
||||
@@ -366,6 +373,21 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
return candidate;
|
||||
}
|
||||
|
||||
+/* Find tagged configs first. */
|
||||
+struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
+ struct dhcp_context *context,
|
||||
+ unsigned char *clid, int clid_len,
|
||||
+ unsigned char *hwaddr, int hw_len,
|
||||
+ int hw_type, char *hostname, struct dhcp_netid *tags)
|
||||
+{
|
||||
+ struct dhcp_config *ret = find_config_match(configs, context, clid, clid_len, hwaddr, hw_len, hw_type, hostname, tags, 0);
|
||||
+
|
||||
+ if (!ret)
|
||||
+ ret = find_config_match(configs, context, clid, clid_len, hwaddr, hw_len, hw_type, hostname, tags, 1);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
void dhcp_update_configs(struct dhcp_config *configs)
|
||||
{
|
||||
/* Some people like to keep all static IP addresses in /etc/hosts.
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index 9437226..055a0d1 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -749,6 +749,7 @@ struct dhcp_config {
|
||||
unsigned char *clid; /* clientid */
|
||||
char *hostname, *domain;
|
||||
struct dhcp_netid_list *netid;
|
||||
+ struct dhcp_netid *filter;
|
||||
#ifdef HAVE_DHCP6
|
||||
struct addrlist *addr6;
|
||||
#endif
|
||||
@@ -1514,7 +1515,8 @@ struct dhcp_config *find_config(struct dhcp_config *configs,
|
||||
struct dhcp_context *context,
|
||||
unsigned char *clid, int clid_len,
|
||||
unsigned char *hwaddr, int hw_len,
|
||||
- int hw_type, char *hostname);
|
||||
+ int hw_type, char *hostname,
|
||||
+ struct dhcp_netid *filter);
|
||||
int config_has_mac(struct dhcp_config *config, unsigned char *hwaddr, int len, int type);
|
||||
#ifdef HAVE_LINUX_NETWORK
|
||||
char *whichdevice(void);
|
||||
diff --git a/src/lease.c b/src/lease.c
|
||||
index 5c33df7..00c82f6 100644
|
||||
--- a/src/lease.c
|
||||
+++ b/src/lease.c
|
||||
@@ -222,7 +222,7 @@ void lease_update_from_configs(void)
|
||||
if (lease->flags & (LEASE_TA | LEASE_NA))
|
||||
continue;
|
||||
else if ((config = find_config(daemon->dhcp_conf, NULL, lease->clid, lease->clid_len,
|
||||
- lease->hwaddr, lease->hwaddr_len, lease->hwaddr_type, NULL)) &&
|
||||
+ lease->hwaddr, lease->hwaddr_len, lease->hwaddr_type, NULL, NULL)) &&
|
||||
(config->flags & CONFIG_NAME) &&
|
||||
(!(config->flags & CONFIG_ADDR) || config->addr.s_addr == lease->addr.s_addr))
|
||||
lease_set_hostname(lease, config->hostname, 1, get_domain(lease->addr), NULL);
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index ea70ee3..88cd2ab 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -953,8 +953,7 @@ static char *set_prefix(char *arg)
|
||||
return arg;
|
||||
}
|
||||
|
||||
-static struct dhcp_netid *
|
||||
-dhcp_netid_create(const char *net, struct dhcp_netid *next)
|
||||
+static struct dhcp_netid *dhcp_netid_create(const char *net, struct dhcp_netid *next)
|
||||
{
|
||||
struct dhcp_netid *tt;
|
||||
tt = opt_malloc(sizeof (struct dhcp_netid));
|
||||
@@ -1019,7 +1018,8 @@ static void dhcp_config_free(struct dhcp_config *config)
|
||||
}
|
||||
|
||||
dhcp_netid_list_free(config->netid);
|
||||
-
|
||||
+ dhcp_netid_free(config->filter);
|
||||
+
|
||||
if (config->flags & CONFIG_CLID)
|
||||
free(config->clid);
|
||||
|
||||
@@ -3167,6 +3167,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
new->flags = (option == LOPT_BANK) ? CONFIG_BANK : 0;
|
||||
new->hwaddr = NULL;
|
||||
new->netid = NULL;
|
||||
+ new->filter = NULL;
|
||||
new->clid = NULL;
|
||||
new->addr6 = NULL;
|
||||
|
||||
@@ -3215,11 +3216,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
newlist->list = dhcp_netid_create(arg+4, NULL);
|
||||
}
|
||||
else if (strstr(arg, "tag:") == arg)
|
||||
- {
|
||||
-
|
||||
- dhcp_config_free(new);
|
||||
- ret_err(_("cannot match tags in --dhcp-host"));
|
||||
- }
|
||||
+ new->filter = dhcp_netid_create(arg+4, new->filter);
|
||||
+
|
||||
#ifdef HAVE_DHCP6
|
||||
else if (arg[0] == '[' && arg[strlen(arg)-1] == ']')
|
||||
{
|
||||
diff --git a/src/rfc2131.c b/src/rfc2131.c
|
||||
index 997575a..a741f9f 100644
|
||||
--- a/src/rfc2131.c
|
||||
+++ b/src/rfc2131.c
|
||||
@@ -479,7 +479,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
|
||||
mess->op = BOOTREPLY;
|
||||
|
||||
config = find_config(daemon->dhcp_conf, context, clid, clid_len,
|
||||
- mess->chaddr, mess->hlen, mess->htype, NULL);
|
||||
+ mess->chaddr, mess->hlen, mess->htype, NULL, run_tag_if(netid));
|
||||
|
||||
/* set "known" tag for known hosts */
|
||||
if (config)
|
||||
@@ -489,7 +489,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
|
||||
netid = &known_id;
|
||||
}
|
||||
else if (find_config(daemon->dhcp_conf, NULL, clid, clid_len,
|
||||
- mess->chaddr, mess->hlen, mess->htype, NULL))
|
||||
+ mess->chaddr, mess->hlen, mess->htype, NULL, run_tag_if(netid)))
|
||||
{
|
||||
known_id.net = "known-othernet";
|
||||
known_id.next = netid;
|
||||
@@ -725,7 +725,7 @@ size_t dhcp_reply(struct dhcp_context *context, char *iface_name, int int_index,
|
||||
to avoid impersonation by name. */
|
||||
struct dhcp_config *new = find_config(daemon->dhcp_conf, context, NULL, 0,
|
||||
mess->chaddr, mess->hlen,
|
||||
- mess->htype, hostname);
|
||||
+ mess->htype, hostname, run_tag_if(netid));
|
||||
if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
|
||||
{
|
||||
config = new;
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index ee58b57..a0067e9 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -486,35 +486,29 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
}
|
||||
}
|
||||
|
||||
- if (state->clid)
|
||||
+ if (state->clid &&
|
||||
+ (config = find_config(daemon->dhcp_conf, state->context, state->clid, state->clid_len,
|
||||
+ state->mac, state->mac_len, state->mac_type, NULL, run_tag_if(state->tags))) &&
|
||||
+ have_config(config, CONFIG_NAME))
|
||||
{
|
||||
- config = find_config(daemon->dhcp_conf, state->context, state->clid, state->clid_len, state->mac, state->mac_len, state->mac_type, NULL);
|
||||
-
|
||||
- if (have_config(config, CONFIG_NAME))
|
||||
- {
|
||||
- state->hostname = config->hostname;
|
||||
- state->domain = config->domain;
|
||||
- state->hostname_auth = 1;
|
||||
- }
|
||||
- else if (state->client_hostname)
|
||||
- {
|
||||
- state->domain = strip_hostname(state->client_hostname);
|
||||
+ state->hostname = config->hostname;
|
||||
+ state->domain = config->domain;
|
||||
+ state->hostname_auth = 1;
|
||||
+ }
|
||||
+ else if (state->client_hostname)
|
||||
+ {
|
||||
+ state->domain = strip_hostname(state->client_hostname);
|
||||
|
||||
- if (strlen(state->client_hostname) != 0)
|
||||
- {
|
||||
- state->hostname = state->client_hostname;
|
||||
- if (!config)
|
||||
- {
|
||||
- /* Search again now we have a hostname.
|
||||
- Only accept configs without CLID here, (it won't match)
|
||||
- to avoid impersonation by name. */
|
||||
- struct dhcp_config *new = find_config(daemon->dhcp_conf, state->context, NULL, 0, NULL, 0, 0, state->hostname);
|
||||
- if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
|
||||
- config = new;
|
||||
- }
|
||||
- }
|
||||
+ if (strlen(state->client_hostname) != 0)
|
||||
+ {
|
||||
+ /* Search again now we have a hostname.
|
||||
+ Only accept configs without CLID here, (it won't match)
|
||||
+ to avoid impersonation by name. */
|
||||
+ struct dhcp_config *new = find_config(daemon->dhcp_conf, state->context, NULL, 0, NULL, 0, 0, state->hostname, run_tag_if(state->tags));
|
||||
+ if (new && !have_config(new, CONFIG_CLID) && !new->hwaddr)
|
||||
+ config = new;
|
||||
}
|
||||
- }
|
||||
+ }
|
||||
|
||||
if (config)
|
||||
{
|
||||
@@ -535,7 +529,8 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
ignore = 1;
|
||||
}
|
||||
else if (state->clid &&
|
||||
- find_config(daemon->dhcp_conf, NULL, state->clid, state->clid_len, state->mac, state->mac_len, state->mac_type, NULL))
|
||||
+ find_config(daemon->dhcp_conf, NULL, state->clid, state->clid_len,
|
||||
+ state->mac, state->mac_len, state->mac_type, NULL, run_tag_if(state->tags)))
|
||||
{
|
||||
known_id.net = "known-othernet";
|
||||
known_id.next = state->tags;
|
||||
--
|
||||
1.8.3.1
|
||||
|
||||
@ -1,237 +0,0 @@
|
||||
From 5010c42c47b7b5a3d68d83369d6c17ed0bc11cff Mon Sep 17 00:00:00 2001
|
||||
From: Petr Mensik <pemensik@redhat.com>
|
||||
Date: Wed, 17 Feb 2021 11:47:28 +0100
|
||||
Subject: [PATCH] Correct occasional --bind-dynamic synchronization break
|
||||
|
||||
Request only one re-read of addresses and/or routes
|
||||
|
||||
Previous implementation re-reads systemd addresses exactly the same
|
||||
number of time equal number of notifications received.
|
||||
This is not necessary, we need just notification of change, then re-read
|
||||
the current state and adapt listeners. Repeated re-reading slows netlink
|
||||
processing and highers CPU usage on mass interface changes.
|
||||
|
||||
Continue reading multicast events from netlink, even when ENOBUFS
|
||||
arrive. Broadcasts are not trusted anyway and refresh would be done in
|
||||
iface_enumerate. Save queued events sent again.
|
||||
|
||||
Remove sleeping on netlink ENOBUFS
|
||||
|
||||
With reduced number of written events netlink should receive ENOBUFS
|
||||
rarely. It does not make sense to wait if it is received. It is just a
|
||||
signal some packets got missing. Fast reading all pending packets is required,
|
||||
seq checking ensures it already. Finishes changes by
|
||||
commit 1d07667ac77c55b9de56b1b2c385167e0e0ec27a.
|
||||
|
||||
Move restart from iface_enumerate to enumerate_interfaces
|
||||
|
||||
When ENOBUFS is received, restart of reading addresses is done. But
|
||||
previously found addresses might not have been found this time. In order
|
||||
to catch this, restart both IPv4 and IPv6 enumeration with clearing
|
||||
found interfaces first. It should deliver up-to-date state also after
|
||||
ENOBUFS.
|
||||
|
||||
Read all netlink messages before netlink restart
|
||||
|
||||
Before writing again into netlink socket, try fetching all pending
|
||||
messages. They would be ignored, only might trigger new address
|
||||
synchronization. Should ensure new try has better chance to succeed.
|
||||
|
||||
Request sending ENOBUFS again
|
||||
|
||||
ENOBUFS error handling was improved. Netlink is correctly drained before
|
||||
sending a new request again. It seems ENOBUFS supression is no longer
|
||||
necessary or wanted. Let kernel tell us when it failed and handle it a
|
||||
good way.
|
||||
---
|
||||
src/netlink.c | 67 ++++++++++++++++++++++++++++++++++++---------------
|
||||
src/network.c | 11 +++++++--
|
||||
2 files changed, 57 insertions(+), 21 deletions(-)
|
||||
|
||||
diff --git a/src/netlink.c b/src/netlink.c
|
||||
index ac1a1c5..f95f3e8 100644
|
||||
--- a/src/netlink.c
|
||||
+++ b/src/netlink.c
|
||||
@@ -32,13 +32,21 @@
|
||||
|
||||
#ifndef NDA_RTA
|
||||
# define NDA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
|
||||
-#endif
|
||||
+#endif
|
||||
+
|
||||
+/* Used to request refresh of addresses or routes just once,
|
||||
+ * when multiple changes might be announced. */
|
||||
+enum async_states {
|
||||
+ STATE_NEWADDR = (1 << 0),
|
||||
+ STATE_NEWROUTE = (1 << 1),
|
||||
+};
|
||||
|
||||
|
||||
static struct iovec iov;
|
||||
static u32 netlink_pid;
|
||||
|
||||
-static void nl_async(struct nlmsghdr *h);
|
||||
+static unsigned nl_async(struct nlmsghdr *h, unsigned state);
|
||||
+static void nl_multicast_state(unsigned state);
|
||||
|
||||
void netlink_init(void)
|
||||
{
|
||||
@@ -135,7 +143,9 @@ static ssize_t netlink_recv(void)
|
||||
|
||||
|
||||
/* family = AF_UNSPEC finds ARP table entries.
|
||||
- family = AF_LOCAL finds MAC addresses. */
|
||||
+ family = AF_LOCAL finds MAC addresses.
|
||||
+ returns 0 on failure, 1 on success, -1 when restart is required
|
||||
+*/
|
||||
int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
{
|
||||
struct sockaddr_nl addr;
|
||||
@@ -143,6 +153,7 @@ int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
ssize_t len;
|
||||
static unsigned int seq = 0;
|
||||
int callback_ok = 1;
|
||||
+ unsigned state = 0;
|
||||
|
||||
struct {
|
||||
struct nlmsghdr nlh;
|
||||
@@ -154,7 +165,6 @@ int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
addr.nl_groups = 0;
|
||||
addr.nl_pid = 0; /* address to kernel */
|
||||
|
||||
- again:
|
||||
if (family == AF_UNSPEC)
|
||||
req.nlh.nlmsg_type = RTM_GETNEIGH;
|
||||
else if (family == AF_LOCAL)
|
||||
@@ -181,8 +191,8 @@ int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
{
|
||||
if (errno == ENOBUFS)
|
||||
{
|
||||
- sleep(1);
|
||||
- goto again;
|
||||
+ nl_multicast_state(state);
|
||||
+ return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@@ -191,7 +201,7 @@ int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
if (h->nlmsg_pid != netlink_pid || h->nlmsg_type == NLMSG_ERROR)
|
||||
{
|
||||
/* May be multicast arriving async */
|
||||
- nl_async(h);
|
||||
+ state = nl_async(h, state);
|
||||
}
|
||||
else if (h->nlmsg_seq != seq)
|
||||
{
|
||||
@@ -327,26 +337,36 @@ int iface_enumerate(int family, void *parm, int (*callback)())
|
||||
}
|
||||
}
|
||||
|
||||
-void netlink_multicast(void)
|
||||
+static void nl_multicast_state(unsigned state)
|
||||
{
|
||||
ssize_t len;
|
||||
struct nlmsghdr *h;
|
||||
int flags;
|
||||
-
|
||||
- /* don't risk blocking reading netlink messages here. */
|
||||
+
|
||||
if ((flags = fcntl(daemon->netlinkfd, F_GETFL)) == -1 ||
|
||||
fcntl(daemon->netlinkfd, F_SETFL, flags | O_NONBLOCK) == -1)
|
||||
return;
|
||||
+
|
||||
+ do {
|
||||
+ /* don't risk blocking reading netlink messages here. */
|
||||
+ while ((len = netlink_recv()) != -1)
|
||||
|
||||
- if ((len = netlink_recv()) != -1)
|
||||
- for (h = (struct nlmsghdr *)iov.iov_base; NLMSG_OK(h, (size_t)len); h = NLMSG_NEXT(h, len))
|
||||
- nl_async(h);
|
||||
-
|
||||
+ for (h = (struct nlmsghdr *)iov.iov_base; NLMSG_OK(h, (size_t)len); h = NLMSG_NEXT(h, len))
|
||||
+ state = nl_async(h, state);
|
||||
+ } while (errno == ENOBUFS);
|
||||
+
|
||||
/* restore non-blocking status */
|
||||
fcntl(daemon->netlinkfd, F_SETFL, flags);
|
||||
}
|
||||
|
||||
-static void nl_async(struct nlmsghdr *h)
|
||||
+void netlink_multicast(void)
|
||||
+{
|
||||
+ unsigned state = 0;
|
||||
+ nl_multicast_state(state);
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static unsigned nl_async(struct nlmsghdr *h, unsigned state)
|
||||
{
|
||||
if (h->nlmsg_type == NLMSG_ERROR)
|
||||
{
|
||||
@@ -354,7 +374,8 @@ static void nl_async(struct nlmsghdr *h)
|
||||
if (err->error != 0)
|
||||
my_syslog(LOG_ERR, _("netlink returns error: %s"), strerror(-(err->error)));
|
||||
}
|
||||
- else if (h->nlmsg_pid == 0 && h->nlmsg_type == RTM_NEWROUTE)
|
||||
+ else if (h->nlmsg_pid == 0 && h->nlmsg_type == RTM_NEWROUTE &&
|
||||
+ (state & STATE_NEWROUTE)==0)
|
||||
{
|
||||
/* We arrange to receive netlink multicast messages whenever the network route is added.
|
||||
If this happens and we still have a DNS packet in the buffer, we re-send it.
|
||||
@@ -366,10 +387,18 @@ static void nl_async(struct nlmsghdr *h)
|
||||
if (rtm->rtm_type == RTN_UNICAST && rtm->rtm_scope == RT_SCOPE_LINK &&
|
||||
(rtm->rtm_table == RT_TABLE_MAIN ||
|
||||
rtm->rtm_table == RT_TABLE_LOCAL))
|
||||
- queue_event(EVENT_NEWROUTE);
|
||||
+ {
|
||||
+ queue_event(EVENT_NEWROUTE);
|
||||
+ state |= STATE_NEWROUTE;
|
||||
+ }
|
||||
+ }
|
||||
+ else if ((h->nlmsg_type == RTM_NEWADDR || h->nlmsg_type == RTM_DELADDR) &&
|
||||
+ (state & STATE_NEWADDR)==0)
|
||||
+ {
|
||||
+ queue_event(EVENT_NEWADDR);
|
||||
+ state |= STATE_NEWADDR;
|
||||
}
|
||||
- else if (h->nlmsg_type == RTM_NEWADDR || h->nlmsg_type == RTM_DELADDR)
|
||||
- queue_event(EVENT_NEWADDR);
|
||||
+ return state;
|
||||
}
|
||||
#endif
|
||||
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index c6e7d89..47caf38 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -656,7 +656,8 @@ int enumerate_interfaces(int reset)
|
||||
|
||||
if ((param.fd = socket(PF_INET, SOCK_DGRAM, 0)) == -1)
|
||||
return 0;
|
||||
-
|
||||
+
|
||||
+again:
|
||||
/* Mark interfaces for garbage collection */
|
||||
for (iface = daemon->interfaces; iface; iface = iface->next)
|
||||
iface->found = 0;
|
||||
@@ -709,10 +710,16 @@ int enumerate_interfaces(int reset)
|
||||
|
||||
#ifdef HAVE_IPV6
|
||||
ret = iface_enumerate(AF_INET6, ¶m, iface_allowed_v6);
|
||||
+ if (ret < 0)
|
||||
+ goto again;
|
||||
#endif
|
||||
|
||||
if (ret)
|
||||
- ret = iface_enumerate(AF_INET, ¶m, iface_allowed_v4);
|
||||
+ {
|
||||
+ ret = iface_enumerate(AF_INET, ¶m, iface_allowed_v4);
|
||||
+ if (ret < 0)
|
||||
+ goto again;
|
||||
+ }
|
||||
|
||||
errsave = errno;
|
||||
close(param.fd);
|
||||
--
|
||||
2.26.2
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,4 +1,4 @@
|
||||
From 4cab3d930f9236408b838adfdaaeb6508a928bbf Mon Sep 17 00:00:00 2001
|
||||
From e046f32d882b6acf2090cbe8830c2dea6279aa8e Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Fri, 9 Jun 2023 22:11:01 +0200
|
||||
Subject: [PATCH] Use serv_domain only for regular servers
|
||||
@ -16,30 +16,28 @@ only domains of servers are tested.
|
||||
|
||||
Resolves: rhbz#2209031
|
||||
---
|
||||
src/forward.c | 4 ++--
|
||||
src/option.c | 13 ++++++++-----
|
||||
src/forward.c | 2 +-
|
||||
src/option.c | 15 +++++++++------
|
||||
2 files changed, 10 insertions(+), 7 deletions(-)
|
||||
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index d8e845a..989fb61 100644
|
||||
index fffab7a..3d1227b 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -234,8 +234,8 @@ static unsigned int search_servers(time_t now, struct all_addr **addrpp, unsigne
|
||||
@@ -249,7 +249,7 @@ static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned
|
||||
*type = 0; /* use normal servers for this domain */
|
||||
*domain = NULL;
|
||||
}
|
||||
- if (serv_domain && !*serv_domain)
|
||||
- *serv_domain = server_domain_find_domain(*domain);
|
||||
+ if (serv_domain && !*serv_domain && (*type & SERV_HAS_DOMAIN)==0)
|
||||
+ *serv_domain = server_domain_find_domain(NULL);
|
||||
*serv_domain = server_domain_find_domain(NULL);
|
||||
return flags;
|
||||
}
|
||||
|
||||
diff --git a/src/option.c b/src/option.c
|
||||
index 1382c55..b22fc90 100644
|
||||
index e4e3182..25680c0 100644
|
||||
--- a/src/option.c
|
||||
+++ b/src/option.c
|
||||
@@ -906,7 +906,7 @@ static struct server *add_rev4(struct in_addr addr, int msize)
|
||||
@@ -928,7 +928,7 @@ static struct server *add_rev4(struct in_addr addr, int msize)
|
||||
p += sprintf(p, "in-addr.arpa");
|
||||
|
||||
serv->flags = SERV_HAS_DOMAIN;
|
||||
@ -48,7 +46,7 @@ index 1382c55..b22fc90 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
|
||||
@@ -931,7 +931,7 @@ static struct server *add_rev6(struct in6_addr *addr, int msize)
|
||||
@@ -953,7 +953,7 @@ static struct server *add_rev6(struct in6_addr *addr, int msize)
|
||||
p += sprintf(p, "ip6.arpa");
|
||||
|
||||
serv->flags = SERV_HAS_DOMAIN;
|
||||
@ -57,7 +55,7 @@ index 1382c55..b22fc90 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
|
||||
@@ -2246,7 +2246,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2294,7 +2294,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
memset(serv, 0, sizeof(struct server));
|
||||
serv->domain = d;
|
||||
serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
|
||||
@ -66,7 +64,7 @@ index 1382c55..b22fc90 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
}
|
||||
@@ -2291,7 +2291,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2338,7 +2338,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
memset(serv, 0, sizeof(struct server));
|
||||
serv->domain = d;
|
||||
serv->flags = SERV_HAS_DOMAIN | SERV_NO_ADDR;
|
||||
@ -75,7 +73,7 @@ index 1382c55..b22fc90 100644
|
||||
serv->next = daemon->servers;
|
||||
daemon->servers = serv;
|
||||
}
|
||||
@@ -2542,7 +2542,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2591,7 +2591,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
newlist = serv;
|
||||
serv->domain = domain;
|
||||
serv->flags = domain ? SERV_HAS_DOMAIN : SERV_FOR_NODOTS;
|
||||
@ -84,7 +82,7 @@ index 1382c55..b22fc90 100644
|
||||
arg = end;
|
||||
if (rebind)
|
||||
break;
|
||||
@@ -2594,6 +2594,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2639,6 +2639,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
server_list_free(newlist);
|
||||
ret_err(err);
|
||||
}
|
||||
@ -93,14 +91,16 @@ index 1382c55..b22fc90 100644
|
||||
}
|
||||
|
||||
serv = newlist;
|
||||
@@ -2637,6 +2639,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
@@ -2682,7 +2684,8 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
|
||||
serv = add_rev6(&addr6, size);
|
||||
else
|
||||
ret_err(gen_err);
|
||||
|
||||
-
|
||||
+
|
||||
+ server_domain_new(serv);
|
||||
string = parse_server(comma, &serv->addr, &serv->source_addr, serv->interface, &serv->flags);
|
||||
|
||||
if (string)
|
||||
--
|
||||
2.41.0
|
||||
2.40.1
|
||||
|
||||
|
||||
50
SOURCES/dnsmasq-2.85-search_servers-rhbz2182342.patch
Normal file
50
SOURCES/dnsmasq-2.85-search_servers-rhbz2182342.patch
Normal file
@ -0,0 +1,50 @@
|
||||
From d75a9691edaa2b2efd8b51f2de492c62cb57c629 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Fri, 5 May 2023 17:51:56 +0200
|
||||
Subject: [PATCH] Ensure search_servers domain is set on dnssec
|
||||
|
||||
When dnssec validation is enabled the domain variable used when fetching
|
||||
dnssec key or domain were not properly initialized always. It were read
|
||||
anyway inside search_servers. Because it is changed only sometime, do
|
||||
not use its value on the end of function. domain can be NULL only at
|
||||
that point, use that value right away.
|
||||
|
||||
Include also TCP.
|
||||
---
|
||||
src/forward.c | 6 +++---
|
||||
1 file changed, 3 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index b09dc96..fffab7a 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -250,7 +250,7 @@ static unsigned int search_servers(time_t now, union all_addr **addrpp, unsigned
|
||||
*domain = NULL;
|
||||
}
|
||||
if (serv_domain && !*serv_domain)
|
||||
- *serv_domain = server_domain_find_domain(*domain);
|
||||
+ *serv_domain = server_domain_find_domain(NULL);
|
||||
return flags;
|
||||
}
|
||||
|
||||
@@ -1097,7 +1097,7 @@ void reply_query(int fd, time_t now)
|
||||
{
|
||||
int querytype, fd, type = SERV_DO_DNSSEC;
|
||||
struct frec *next = new->next;
|
||||
- char *domain;
|
||||
+ char *domain = NULL;
|
||||
|
||||
*new = *forward; /* copy everything, then overwrite */
|
||||
new->next = next;
|
||||
@@ -1633,7 +1633,7 @@ static int tcp_key_recurse(time_t now, int status, struct dns_header *header, si
|
||||
while (1)
|
||||
{
|
||||
int type = SERV_DO_DNSSEC;
|
||||
- char *domain;
|
||||
+ char *domain = NULL;
|
||||
size_t m;
|
||||
unsigned char c1, c2;
|
||||
struct server *firstsendto = NULL;
|
||||
--
|
||||
2.40.1
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From 312e9f812a6b2f5ca2c2db866ffed3a0b289b945 Mon Sep 17 00:00:00 2001
|
||||
From 4650d0aef20db4b7e129895ffcb93ca4609e6347 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Wed, 10 May 2023 12:57:17 +0200
|
||||
Subject: [PATCH] fixup! Correct releasing of serv_domain
|
||||
@ -9,23 +9,23 @@ Subject: [PATCH] fixup! Correct releasing of serv_domain
|
||||
2 files changed, 12 insertions(+), 10 deletions(-)
|
||||
|
||||
diff --git a/src/dnsmasq.h b/src/dnsmasq.h
|
||||
index e8a1320..711ffd3 100644
|
||||
index b6dcc50..c62c3d0 100644
|
||||
--- a/src/dnsmasq.h
|
||||
+++ b/src/dnsmasq.h
|
||||
@@ -1331,7 +1331,7 @@ int label_exception(int index, int family, struct all_addr *addr);
|
||||
int fix_fd(int fd);
|
||||
@@ -1405,7 +1405,7 @@ int fix_fd(int fd);
|
||||
int tcp_interface(int fd, int af);
|
||||
int set_ipv6pktinfo(int fd);
|
||||
struct server_domain *server_domain_find_domain(const char *domain);
|
||||
-struct server_domain *server_domain_new(struct server *serv);
|
||||
+void server_domain_new(struct server *serv);
|
||||
#ifdef HAVE_IPV6
|
||||
int set_ipv6pktinfo(int fd);
|
||||
#ifdef HAVE_DHCP6
|
||||
void join_multicast(int dienow);
|
||||
#endif
|
||||
diff --git a/src/network.c b/src/network.c
|
||||
index b8d77fe..6faaad4 100644
|
||||
index 8152cac..e42220c 100644
|
||||
--- a/src/network.c
|
||||
+++ b/src/network.c
|
||||
@@ -1544,6 +1544,7 @@ void add_update_server(int flags,
|
||||
@@ -1653,6 +1653,7 @@ void add_update_server(int flags,
|
||||
serv->addr = *addr;
|
||||
if (source_addr)
|
||||
serv->source_addr = *source_addr;
|
||||
@ -33,7 +33,7 @@ index b8d77fe..6faaad4 100644
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1571,14 +1572,20 @@ struct server_domain *server_domain_find_domain(const char *domain)
|
||||
@@ -1680,14 +1681,20 @@ struct server_domain *server_domain_find_domain(const char *domain)
|
||||
/**< Test structure has already set domain pointer.
|
||||
*
|
||||
* If not, create a new record. */
|
||||
@ -57,7 +57,7 @@ index b8d77fe..6faaad4 100644
|
||||
/* Ensure all serv->domain values have own record in server_domain.
|
||||
* Add a new record. */
|
||||
if (domain)
|
||||
@@ -1592,7 +1599,6 @@ struct server_domain *server_domain_new(struct server *serv)
|
||||
@@ -1701,7 +1708,6 @@ struct server_domain *server_domain_new(struct server *serv)
|
||||
serv->serv_domain = sd;
|
||||
daemon->server_domains = sd;
|
||||
}
|
||||
@ -65,7 +65,7 @@ index b8d77fe..6faaad4 100644
|
||||
}
|
||||
|
||||
/**< Test structure has already set domain pointer.
|
||||
@@ -1605,11 +1611,7 @@ static void server_domain_check(struct server *serv)
|
||||
@@ -1714,11 +1720,7 @@ static void server_domain_check(struct server *serv)
|
||||
if (sd)
|
||||
sd->flags &= (~SERV_MARK); /* found domain, mark active */
|
||||
else
|
||||
|
||||
16
SOURCES/dnsmasq-2.85.tar.xz.asc
Normal file
16
SOURCES/dnsmasq-2.85.tar.xz.asc
Normal file
@ -0,0 +1,16 @@
|
||||
-----BEGIN PGP SIGNATURE-----
|
||||
|
||||
iQIzBAABCAAdFiEE1urL1u5GuDQkjRESFc3aauGRNaIFAmBuGPsACgkQFc3aauGR
|
||||
NaIg6A//Xfcu62aItiHf/jTeFHUSqHrdqanDqLRWSpgdeKO2adk+s66p5CqVHC8K
|
||||
JfxPo6eTUj8uX53Idy5oiwUz4d40iiOjfxHs4Nme0ozyIAHGw/Tfwx7/+NV882vi
|
||||
+rtqhjF83dRsnqIR95FD17tVI+cR0sq6XKzwBtPicjmPt79sQ2UtkBo7I+IS9B5g
|
||||
o+i21gGYm34EgY6EavveWfGkKgJLz+cF59h4i16lc1eRGNsy5clURDxiJ65Zz0zb
|
||||
ZARLudEclbFNdoUu/4idmOUhZCGWrqf9o+rQDYW3vN85saxCPbTChqqy1VC6OBnX
|
||||
VLN3cAJlk1hS5X0HzewhXkOqulzjg81KWRQ8EYATdOQP7u6apv4q87hnmr+uL9E8
|
||||
0VZ3ECyhH7n6qNXfqNS2Fp3Yp0sm1hgRy+6bu/IgVTPs/Ro22HqTiw5YXZQkPMbe
|
||||
A4acAep59nIV9dEB5DYF1N0S0P6OcVtUsZAFlGS1cD0owFuI44W/lg8w9xA9gyJv
|
||||
uqZvZqkQDM8bi9zJ2d7fjf65pjS+7S9ISxDoPHp34lLMB7D/rAuW8GVBkL1KxMWb
|
||||
sRHIBDKM01CXZeRBlbxAYHlH7s2QehRk/t57ksTmPtT3IAVMSajEG0+1YElUGg8s
|
||||
2gqLtCLdmB6Lwl4RFripSERvPzYOAsd8DiqDL9wYOECBStUGuEw=
|
||||
=W3WM
|
||||
-----END PGP SIGNATURE-----
|
||||
@ -1,4 +1,4 @@
|
||||
From 9e2b6474f2074511c3911b2f777e8e8704782670 Mon Sep 17 00:00:00 2001
|
||||
From 4272580bb586180e596e5ed30b68455826acc8c1 Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Wed, 22 Sep 2021 14:54:01 +0200
|
||||
Subject: [PATCH] Add support for option6 names of RFC 5970
|
||||
@ -11,11 +11,11 @@ types.
|
||||
1 file changed, 2 insertions(+)
|
||||
|
||||
diff --git a/src/dhcp-common.c b/src/dhcp-common.c
|
||||
index 224c4d6..368d686 100644
|
||||
index 36bc38a..528e8e7 100644
|
||||
--- a/src/dhcp-common.c
|
||||
+++ b/src/dhcp-common.c
|
||||
@@ -645,6 +645,8 @@ static const struct opttab_t opttab6[] = {
|
||||
{ "ntp-server", 56, 0 },
|
||||
@@ -659,6 +659,8 @@ static const struct opttab_t opttab6[] = {
|
||||
{ "ntp-server", 56, 0 /* OT_ADDR_LIST | OT_RFC1035_NAME */ },
|
||||
{ "bootfile-url", 59, OT_NAME },
|
||||
{ "bootfile-param", 60, OT_CSTRING },
|
||||
+ { "client-arch", 61, 2 | OT_DEC }, /* RFC 5970 */
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
From 471cd540e755d2a5e92b4e8cd2ab2027beaba449 Mon Sep 17 00:00:00 2001
|
||||
From 5d1b75b542f128f757606668a44ce60ebb3c47f0 Mon Sep 17 00:00:00 2001
|
||||
From: Simon Kelley <simon@thekelleys.org.uk>
|
||||
Date: Thu, 31 Mar 2022 21:35:20 +0100
|
||||
Subject: [PATCH] Fix write-after-free error in DHCPv6 code. CVE-2022-0934
|
||||
@ -9,11 +9,11 @@ Subject: [PATCH] Fix write-after-free error in DHCPv6 code. CVE-2022-0934
|
||||
1 file changed, 27 insertions(+), 21 deletions(-)
|
||||
|
||||
diff --git a/src/rfc3315.c b/src/rfc3315.c
|
||||
index 554b1fe..bc77fbf 100644
|
||||
index fbb6876..d2ebf15 100644
|
||||
--- a/src/rfc3315.c
|
||||
+++ b/src/rfc3315.c
|
||||
@@ -36,9 +36,9 @@ struct state {
|
||||
#endif
|
||||
@@ -33,9 +33,9 @@ struct state {
|
||||
unsigned int mac_len, mac_type;
|
||||
};
|
||||
|
||||
-static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
|
||||
@ -24,7 +24,7 @@ index 554b1fe..bc77fbf 100644
|
||||
static void log6_opts(int nest, unsigned int xid, void *start_opts, void *end_opts);
|
||||
static void log6_packet(struct state *state, char *type, struct in6_addr *addr, char *string);
|
||||
static void log6_quiet(struct state *state, char *type, struct in6_addr *addr, char *string);
|
||||
@@ -110,12 +110,12 @@ unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *if
|
||||
@@ -104,12 +104,12 @@ unsigned short dhcp6_reply(struct dhcp_context *context, int interface, char *if
|
||||
}
|
||||
|
||||
/* This cost me blood to write, it will probably cost you blood to understand - srk. */
|
||||
@ -39,7 +39,7 @@ index 554b1fe..bc77fbf 100644
|
||||
unsigned char *outmsgtypep;
|
||||
void *opt;
|
||||
struct dhcp_vendor *vendor;
|
||||
@@ -241,15 +241,15 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
|
||||
@@ -259,15 +259,15 @@ static int dhcp6_maybe_relay(struct state *state, void *inbuff, size_t sz,
|
||||
return 1;
|
||||
}
|
||||
|
||||
@ -58,7 +58,7 @@ index 554b1fe..bc77fbf 100644
|
||||
struct dhcp_vendor *vendor;
|
||||
struct dhcp_context *context_tmp;
|
||||
struct dhcp_mac *mac_opt;
|
||||
@@ -285,12 +285,13 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -296,12 +296,13 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
v6_id.next = state->tags;
|
||||
state->tags = &v6_id;
|
||||
|
||||
@ -76,7 +76,7 @@ index 554b1fe..bc77fbf 100644
|
||||
/* We're going to be linking tags from all context we use.
|
||||
mark them as unused so we don't link one twice and break the list */
|
||||
for (context_tmp = state->context; context_tmp; context_tmp = context_tmp->current)
|
||||
@@ -336,7 +337,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -347,7 +348,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
(msg_type == DHCP6REQUEST || msg_type == DHCP6RENEW || msg_type == DHCP6RELEASE || msg_type == DHCP6DECLINE))
|
||||
|
||||
{
|
||||
@ -85,7 +85,7 @@ index 554b1fe..bc77fbf 100644
|
||||
o1 = new_opt6(OPTION6_STATUS_CODE);
|
||||
put_opt6_short(DHCP6USEMULTI);
|
||||
put_opt6_string("Use multicast");
|
||||
@@ -600,11 +601,11 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -619,11 +620,11 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
struct dhcp_netid *solicit_tags;
|
||||
struct dhcp_context *c;
|
||||
|
||||
@ -99,7 +99,7 @@ index 554b1fe..bc77fbf 100644
|
||||
state->lease_allocate = 1;
|
||||
o = new_opt6(OPTION6_RAPID_COMMIT);
|
||||
end_opt6(o);
|
||||
@@ -876,7 +877,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -826,7 +827,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
int start = save_counter(-1);
|
||||
|
||||
/* set reply message type */
|
||||
@ -108,7 +108,7 @@ index 554b1fe..bc77fbf 100644
|
||||
state->lease_allocate = 1;
|
||||
|
||||
log6_quiet(state, "DHCPREQUEST", NULL, ignore ? _("ignored") : NULL);
|
||||
@@ -992,7 +993,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -938,7 +939,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
case DHCP6RENEW:
|
||||
{
|
||||
/* set reply message type */
|
||||
@ -117,7 +117,7 @@ index 554b1fe..bc77fbf 100644
|
||||
|
||||
log6_quiet(state, "DHCPRENEW", NULL, NULL);
|
||||
|
||||
@@ -1104,7 +1105,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -1050,7 +1051,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
int good_addr = 0;
|
||||
|
||||
/* set reply message type */
|
||||
@ -126,7 +126,7 @@ index 554b1fe..bc77fbf 100644
|
||||
|
||||
log6_quiet(state, "DHCPCONFIRM", NULL, NULL);
|
||||
|
||||
@@ -1168,7 +1169,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -1114,7 +1115,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
log6_quiet(state, "DHCPINFORMATION-REQUEST", NULL, ignore ? _("ignored") : state->hostname);
|
||||
if (ignore)
|
||||
return 0;
|
||||
@ -135,7 +135,7 @@ index 554b1fe..bc77fbf 100644
|
||||
tagif = add_options(state, 1);
|
||||
break;
|
||||
}
|
||||
@@ -1177,7 +1178,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -1123,7 +1124,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
case DHCP6RELEASE:
|
||||
{
|
||||
/* set reply message type */
|
||||
@ -144,7 +144,7 @@ index 554b1fe..bc77fbf 100644
|
||||
|
||||
log6_quiet(state, "DHCPRELEASE", NULL, NULL);
|
||||
|
||||
@@ -1242,7 +1243,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -1188,7 +1189,7 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
case DHCP6DECLINE:
|
||||
{
|
||||
/* set reply message type */
|
||||
@ -153,7 +153,7 @@ index 554b1fe..bc77fbf 100644
|
||||
|
||||
log6_quiet(state, "DHCPDECLINE", NULL, NULL);
|
||||
|
||||
@@ -1321,7 +1322,12 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
@@ -1268,7 +1269,12 @@ static int dhcp6_no_relay(struct state *state, int msg_type, void *inbuff, size_
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
77
SOURCES/dnsmasq-2.87-coverity-forward-cache.patch
Normal file
77
SOURCES/dnsmasq-2.87-coverity-forward-cache.patch
Normal file
@ -0,0 +1,77 @@
|
||||
From 2f45670951d2159ebf588e1e4943c0bc9e1cd20b Mon Sep 17 00:00:00 2001
|
||||
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
|
||||
Date: Wed, 18 Aug 2021 14:59:23 +0200
|
||||
Subject: [PATCH] Add safety checks to places pointed by Coverity
|
||||
|
||||
GCC Analyzer (experimental)
|
||||
|
||||
1. dnsmasq-2.85/src/forward.c:0: scope_hint: In function 'allocate_rfd.part.0'
|
||||
2. dnsmasq-2.85/src/forward.c:2321:18: warning[-Wanalyzer-null-dereference]: dereference of NULL 'rfd'
|
||||
# 2319| *fdlp = rfl;
|
||||
# 2320|
|
||||
# 2321|-> return rfl->rfd->fd;
|
||||
# 2322| }
|
||||
# 2323|
|
||||
|
||||
1. dnsmasq-2.85/src/cache.c:0: scope_hint: In function 'log_query'
|
||||
2. dnsmasq-2.85/src/cache.c:1969:20: warning[-Wanalyzer-null-dereference]: dereference of NULL 'name'
|
||||
# 1967| source = "cached";
|
||||
# 1968|
|
||||
# 1969|-> if (strlen(name) == 0)
|
||||
# 1970| name = ".";
|
||||
# 1971|
|
||||
|
||||
1. dnsmasq-2.85/src/cache.c:0: scope_hint: In function 'cache_scan_free'
|
||||
2. dnsmasq-2.85/src/cache.c:436:20: warning[-Wanalyzer-null-argument]: use of NULL 'addr' where non-null expected
|
||||
40. /usr/include/sys/un.h:37: included_from: Included from here.
|
||||
41. dnsmasq-2.85/src/dnsmasq.h:101: included_from: Included from here.
|
||||
42. dnsmasq-2.85/src/cache.c:17: included_from: Included from here.
|
||||
43. /usr/include/string.h:64:12: note: argument 2 of 'memcmp' must be non-null
|
||||
# 434| (flags & crecp->flags & F_REVERSE) &&
|
||||
# 435| (flags & crecp->flags & (F_IPV4 | F_IPV6)) &&
|
||||
# 436|-> memcmp(&crecp->addr, addr, addrlen) == 0)
|
||||
# 437| {
|
||||
# 438| *up = crecp->hash_next;
|
||||
---
|
||||
src/cache.c | 4 ++--
|
||||
src/forward.c | 2 +-
|
||||
2 files changed, 3 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/src/cache.c b/src/cache.c
|
||||
index b3b3c7c..8f97947 100644
|
||||
--- a/src/cache.c
|
||||
+++ b/src/cache.c
|
||||
@@ -483,7 +483,7 @@ static struct crec *cache_scan_free(char *name, union all_addr *addr, unsigned s
|
||||
else if (!(crecp->flags & (F_HOSTS | F_DHCP | F_CONFIG)) &&
|
||||
(flags & crecp->flags & F_REVERSE) &&
|
||||
(flags & crecp->flags & (F_IPV4 | F_IPV6)) &&
|
||||
- memcmp(&crecp->addr, addr, addrlen) == 0)
|
||||
+ addr && memcmp(&crecp->addr, addr, addrlen) == 0)
|
||||
{
|
||||
*up = crecp->hash_next;
|
||||
cache_unlink(crecp);
|
||||
@@ -2067,7 +2067,7 @@ void log_query(unsigned int flags, char *name, union all_addr *addr, char *arg,
|
||||
else
|
||||
source = "cached";
|
||||
|
||||
- if (strlen(name) == 0)
|
||||
+ if (name && !name[0])
|
||||
name = ".";
|
||||
|
||||
if (option_bool(OPT_EXTRALOG))
|
||||
diff --git a/src/forward.c b/src/forward.c
|
||||
index 434ba77..f3c38d7 100644
|
||||
--- a/src/forward.c
|
||||
+++ b/src/forward.c
|
||||
@@ -2274,7 +2274,7 @@ int allocate_rfd(struct randfd_list **fdlp, struct server *serv)
|
||||
}
|
||||
}
|
||||
|
||||
- if (j == daemon->numrrand)
|
||||
+ if (!rfd) /* should be when j == daemon->numrrand */
|
||||
{
|
||||
struct randfd_list *rfl_poll;
|
||||
|
||||
--
|
||||
2.41.0
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@ -3,7 +3,9 @@ Description=DNS caching server.
|
||||
After=network.target
|
||||
|
||||
[Service]
|
||||
ExecStart=/usr/sbin/dnsmasq -k
|
||||
ExecStart=/usr/sbin/dnsmasq
|
||||
Type=forking
|
||||
PIDFile=/run/dnsmasq.pid
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
|
||||
117
SOURCES/srkgpg.txt
Normal file
117
SOURCES/srkgpg.txt
Normal file
@ -0,0 +1,117 @@
|
||||
-----BEGIN PGP PUBLIC KEY BLOCK-----
|
||||
Version: GnuPG v2.0.22 (GNU/Linux)
|
||||
|
||||
mQINBFMbjUMBEACsU1Xk8+uu/EsGVJTh9Tn31C2e0ycd0voBVT7cTdtXpzeiNR+o
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
u1g3/IoIGNnadETzEmAd02FJncUlUo05yDAcVg/IqwgM8atJQqEWLYE0QHrcqOWi
|
||||
eaCCJ9+fx2KhxKnRqpKAXSov+M0KYDkIV9OQE+KioGzxdlrN2ZFmbfIKLLYMwH0s
|
||||
xMkgJjbbhP8KhfxDIUoSky9gUTwwyrpJVjKkXZ6yNFpSo+Mtn8OHL12nLqzyQONT
|
||||
waerx4hGBBARCAAGBQJTL0SDAAoJEBbi9PX8geFZBbUAnR3I/MdzG4kBtCecwePz
|
||||
MvKdKS1SAJ9CyGUhzb8coURtMzbIlH9F7jm6L4kCHAQQAQgABgUCUy9EpAAKCRBj
|
||||
ziC6xJxBSLhYD/9qBBxVex2nxavrMV4Vd0AhYJa5iI148NbqD7EZLnuCDWwi+wrq
|
||||
nfMi0ToUHlh1Lp36vXd06W8JySHIiAxL0zDpq6tdT65f6iOTRZ6W6xuebxKgqC3k
|
||||
ZsxcEzceYR1dOCKlRhQAsZ7Q9BJP/ZafSD/NOm2sxdPOneYm8IA4QXwWDVOayrV8
|
||||
FOIDBkBLmPhm1BGNErdhCBCYsvqYSN7gFJBNszXciNMJtBmXWNyTsHtNAeKIQuzE
|
||||
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|
||||
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|
||||
j7oPQbA353oyUCCAukd4UiNYtULNCbZzfKdKCFCajnIfIY8IqNGuWvmujKViDAk2
|
||||
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|
||||
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|
||||
ygYqfU8dnk2umV20gIm8q/SQYiyhMM+PZCkKXeHyoeU/SbO72DWKw/ZtZI/1b9xX
|
||||
ruc1HBKJ/UXNPJRyoHIi4dZ/ARQ/zk839beBMnGm0AsB1y1+leTlrNZM5rQdU2lt
|
||||
b24gS2VsbGV5IDxzcmtAZGViaWFuLm9yZz6JAjcEEwEIACEFAlMgw3QCGwMFCwkI
|
||||
BwMFFQoJCAsFFgIDAQACHgECF4AACgkQFc3aauGRNaKhRg//S5G2RYoHNY22ecyG
|
||||
5hpBr354lqdZiYRHKYCjX29jDIrtZSlC3HCL31ciGOVg666aD5xy54WAPTlx3MFQ
|
||||
AxgWsqFTkICHj6zFdFduLmI1IffvcxkcEKwi6NK5f5dOxih9EtXcQ1HsoSUWGRmB
|
||||
Kltvt1wyaiG37A80pjzQso1b6kr5JLdGMrjWx9PnFRKCdUNh5nxIb4HeC5R2Q8oT
|
||||
FaipSppZwmvA5ocCvhMsyYCyiE6o8QTtzTqj5mGZafIqy18hwB9bA2n2gcEY1fXD
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
AKC2OnBT8TZ5cnTQwleYshUsxJddkQCgpecrsb8ysVtau7lXBgrA/X/Wef2JAhwE
|
||||
EAEIAAYFAlMh6fIACgkQAtAgRQj7DvcWsQ//SF+g3zMRYeZ+qNC3m7slibJNCPdM
|
||||
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|
||||
m+0KXYKnDjHv1297sSALFoYKlm4K4lnE7T/qJknc/mGlLWfWm5Y5jV/QfV9Zwxvy
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
eqyP2tQOjTdf65OMSIOCIrfpWHPDscJfsP3fjbHojFfx81iJnFmOdxx9aqB9KD15
|
||||
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|
||||
0c8FnCK1Ts6D1peRiIiMq+gjGccdVJyim/yZI3WqzHvul//WmdEFzwgXqh03wbx3
|
||||
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|
||||
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|
||||
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|
||||
PEwJxAORMBf3JEPlz2brGRgcSbacJG5RE4Qw2hfKJTOQTiNk4DpLwYrChLK8Ctmn
|
||||
RS7jAZth3U2W7Fqc7OFfKs3zuo/2RRRCG3fjOVX7aIOp4Cnobvk0NxXDhEtUpMeP
|
||||
0o7qPW8OdxrFyQ3YCoxu94ix1S6da3m143OujdmlM0Gs7Acyeq4bN3FokLzrMxci
|
||||
oO6swXzgh9RGCzMkRrBztWgEpXQf8PbcBliF+sDV2aYerGBN9qmbN9FX30IKGaWn
|
||||
QsK5Ag0EUyDDoQEQAMfQfa2tw3+OJFGMQEzLJSoXYN8/HnZEgKNlcMuYzhheQLgu
|
||||
/MfcQJ7mnCIdn6xdPaalfLmYx63tM47/NGEM1+MSEvovPiRG0OLxzSgwei9DiGeN
|
||||
EgsPTLXSZ5EVSXCM1+e9mT1ExT9aGLNnpCd6kIyWIcKCVMot+XC70R9prWLeyKSh
|
||||
0FAZ0Pwv9i23osJVGOtJjND+WZ0uCeN29ocfN0b64yF4nPRc9IbcmYIDgNU3RybK
|
||||
2Z/dupbthTisRjHRI3iX3/tiymXF3J0sSvsCluWIJWmyltS3Xyk/wfKVJz6OouiJ
|
||||
jTj5utXVnCGptCDw+DCcj89vx1N0+0Dhm1cQcNZvXjMbVDTsuU+eVpJbxU6y8N+n
|
||||
XpAXjEw4jMi3zNpqKtkyv2YpoqY5HhGLybgrY0zwSQOyMNf9lZ5J7znq5gEmiMXn
|
||||
G9OPEw7PPSvm6QfbHPY/jAOgxsu7Fme7k303D5KkyGkkbzQiYyEtMZvbOMH/uECi
|
||||
2uHGB72qiGpEYjMtHhihaRCBl+0bY8sH83He690qNQHSdStjaKXcecduE/v5iO0m
|
||||
OYIHdsEHhKlWsE1GXXVLofBr68UBhYV6/AGXko4Pr+dXLzauN4kALDx6WltFu3qU
|
||||
voD+uEoLq7IXULMo5Pyd7bO4qGQMKykaXTb5o6dqdu4GzWIUw1fr9kLEmo29ABEB
|
||||
AAGJAh8EGAEIAAkFAlMgw6ECGwwACgkQFc3aauGRNaIjqA/+PXuaM6JHuudLycmB
|
||||
0iKAwyB5csOFGpF3b9FgMR68TC4jzi5J5hJZASl0cO/e0ytQsrDUBbH74y+WaA4l
|
||||
dwBVYr0j/2hqzIjrnGMtgWeHFPLV3sKw8DGuNx1/cOoljJXzi1WWSHIwDvaj3uZ9
|
||||
CwHt+4/abR7kdvMcnFhQVA4zuzZWFqpp+CDkkJNVwB9zxtAQwGTGF4cQ0IvTkhCo
|
||||
6DQhZZVTeyn+nBKxzzWijniWc0LyRsum03MxZ6E7UVIInCTjdXTalnO8wColwIx5
|
||||
FV4nTMxdsKKgnIXmLexBdd03bW9TkowWf2C2XfDN+pDS8X3MzO6zAyogqJhAiBFj
|
||||
nRzkOw0cw1VTL00o8uiWdMeu7OKOKeQbUilMAn4MweKB57mc582kjeGmwdZgWFA4
|
||||
BJ2eiH7HwjxiynwMdZwQEBdOTNLbggHk3/mScF8U1KcJhjAFf7Ne+Z0feG/8GgKl
|
||||
5aj3ucl821+dfpzB79lLo+kmd1qkDyDiUR5yN6P8l8k6IAUJz2KUe0BjtO6VFFw0
|
||||
xni05dkrXdfo7IO79ictHmEn+g3QO8ZLUGRwdtZ1cMhTkm7FhH8Bdby0y4Soqluv
|
||||
Hbri++cC91i1I3a92kHi/8O45rnLhVt+sOfxY1QnSIYh5OFwGMqMCNDTEL7ESiFa
|
||||
FhSXkmzzVntlyvOBMlgz3IGh2hA=
|
||||
=TM0e
|
||||
-----END PGP PUBLIC KEY BLOCK-----
|
||||
@ -10,96 +10,65 @@
|
||||
%endif
|
||||
|
||||
%define _hardened_build 1
|
||||
# path to upstream git repository
|
||||
%global git_upstream git://thekelleys.org.uk/dnsmasq.git
|
||||
# tag of selected version
|
||||
%global gittag v%{version}%{?extraversion}
|
||||
|
||||
# Attempt to prepare source-git with downstream repos
|
||||
%bcond_with sourcegit
|
||||
|
||||
Name: dnsmasq
|
||||
Version: 2.79
|
||||
Release: 33%{?extraversion:.%{extraversion}}%{?dist}
|
||||
Version: 2.85
|
||||
Release: 14%{?extraversion:.%{extraversion}}%{?dist}
|
||||
Summary: A lightweight DHCP/caching DNS server
|
||||
|
||||
License: GPLv2 or GPLv3
|
||||
URL: http://www.thekelleys.org.uk/dnsmasq/
|
||||
Source0: http://www.thekelleys.org.uk/dnsmasq/%{?extrapath}%{name}-%{version}%{?extraversion}.tar.xz
|
||||
Source0: %{url}%{?extrapath}%{name}-%{version}%{?extraversion}.tar.xz
|
||||
Source1: %{name}.service
|
||||
Source2: dnsmasq-systemd-sysusers.conf
|
||||
Source3: %{url}%{?extrapath}%{name}-%{version}%{?extraversion}.tar.xz.asc
|
||||
# GPG public key
|
||||
%if 0%{?testrelease} || 0%{?releasecandidate}
|
||||
Source4: %{url}%{?extrapath}test-release-public-key
|
||||
%else
|
||||
Source4: http://www.thekelleys.org.uk/srkgpg.txt
|
||||
%endif
|
||||
|
||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1495409
|
||||
Patch1: dnsmasq-2.77-underflow.patch
|
||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1852373
|
||||
Patch2: dnsmasq-2.81-configuration.patch
|
||||
Patch3: dnsmasq-2.78-fips.patch
|
||||
Patch4: dnsmasq-2.80-dnssec.patch
|
||||
Patch5: dnsmasq-2.79-rh1602477.patch
|
||||
# Few changes not yet in upstream
|
||||
Patch6: dnsmasq-2.79-rh1602477-2.patch
|
||||
# commit 60ac10d8d86e6f95ab0f06abe6c42596adcedcb8
|
||||
Patch7: dnsmasq-2.76-rh1752569.patch
|
||||
# Report failure when no release would be sent
|
||||
Patch8: dnsmasq-2.79-rh1749092-fail.patch
|
||||
Patch9: dnsmasq-2.76-rh1728698-1.patch
|
||||
Patch10: dnsmasq-2.79-rh1728698-2.patch
|
||||
Patch11: dnsmasq-2.76-rh1728698-3.patch
|
||||
Patch12: dnsmasq-2.79-rh1728698-4.patch
|
||||
Patch13: dnsmasq-2.79-rh1746411.patch
|
||||
Patch14: dnsmasq-2.79-rh1700916.patch
|
||||
Patch15: dnsmasq-2.80-rh1795370.patch
|
||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1779187
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=97f876b64c22b2b18412e2e3d8506ee33e42db7c
|
||||
Patch16: dnsmasq-2.80-unaligned-addresses-in-DHCPv6-packet.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=f064188032a829efdcf3988b24ac795ff52785ec
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=137286e9baecf6a3ba97722ef1b49c851b531810
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=79aba0f10ad0157fb4f48afbbcb03f094caff97a
|
||||
Patch17: dnsmasq-2.81-prefix-ranges-or-list-of-ipv6-addresses.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=52ec7836139e7a11374971905e5ac0d2d02e32c0
|
||||
Patch18: dnsmasq-2.81-tag-filtering-of-dhcp-host-directives.patch
|
||||
Patch19: dnsmasq-2.81-correct-range-check-of-dhcp-host-prefix.patch
|
||||
Patch20: dnsmasq-2.81-optimize-fds-close.patch
|
||||
Patch21: dnsmasq-2.81-rh1829448.patch
|
||||
Patch22: dnsmasq-2.79-CVE-2020-25681.patch
|
||||
Patch23: dnsmasq-2.79-CVE-2020-25684.patch
|
||||
Patch24: dnsmasq-2.79-CVE-2020-25685.patch
|
||||
Patch25: dnsmasq-2.79-CVE-2020-25686.patch
|
||||
Patch26: dnsmasq-2.79-CVE-2020-25686-2.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=3f535da79e7a42104543ef5c7b5fa2bed819a78b
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=04490bf622ac84891aad6f2dd2edf83725decdee
|
||||
Patch27: dnsmasq-2.79-mixed-family-failed.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=b2ed691eb3ca6488a8878f5f3dd950a07b14a9db
|
||||
Patch28: dnsmasq-2.81-netlink-table.patch
|
||||
Patch29: dnsmasq-2.84-bind-dynamic-netlink.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=74d4fcd756a85bc1823232ea74334f7ccfb9d5d2
|
||||
Patch30: dnsmasq-2.85-CVE-2021-3448.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=03212e533b1e07aba30d2f4112009dc3af867ea5
|
||||
Patch31: dnsmasq-2.80-man-nameing.patch
|
||||
Patch32: dnsmasq-2.79-alternative-lease.patch
|
||||
Patch33: dnsmasq-2.86-dhcpv6-client-arch.patch
|
||||
# Downstream only patch; https://bugzilla.redhat.com/show_bug.cgi?id=1919894
|
||||
# Similar functionality is implemented since 2.86 in upstream, but introduced
|
||||
# several regressions. This implements just limited change in different way.
|
||||
Patch34: dnsmasq-2.79-server-domain-rh1919894.patch
|
||||
Patch4: dnsmasq-2.79-server-domain-rh1919894.patch
|
||||
# https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2021q3/015640.html
|
||||
Patch5: dnsmasq-2.86-alternative-lease.patch
|
||||
Patch6: dnsmasq-2.86-dhcpv6-client-arch.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=03345ecefeb0d82e3c3a4c28f27c3554f0611b39
|
||||
Patch35: dnsmasq-2.87-CVE-2022-0934.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=dded78b2338147daf69064d6d48c16b12744e441
|
||||
Patch36: dnsmasq-2.81-option6-ntp-server-suboption.patch
|
||||
# https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;h=3052ce208acf602f0163166dcefb7330d537cedb
|
||||
Patch37: dnsmasq-2.81-linux-SIOCGSTAMP.patch
|
||||
# Downstream only patch; fixes Patch34 change
|
||||
Patch38: dnsmasq-2.79-server-domain-fixup.patch
|
||||
# https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;h=f8c77edbdffb8ada7753ea9fa104f0f6da70cfe3
|
||||
Patch39: dnsmasq-2.81-dhcpv6-relay-link-address.patch
|
||||
Patch7: dnsmasq-2.87-CVE-2022-0934.patch
|
||||
# Downstream only patch; fixes Patch4 change
|
||||
Patch8: dnsmasq-2.79-server-domain-fixup.patch
|
||||
# https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;h=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5
|
||||
Patch40: dnsmasq-2.89-edns0-size.patch
|
||||
Patch9: dnsmasq-2.89-edns0-size.patch
|
||||
# Downstream only patch; https://bugzilla.redhat.com/show_bug.cgi?id=2186481
|
||||
# Fixes issue in Patch4
|
||||
Patch41: dnsmasq-2.85-serv_domain-rh2186481.patch
|
||||
Patch10: dnsmasq-2.85-serv_domain-rh2186481.patch
|
||||
# Downstream only patch; https://bugzilla.redhat.com/show_bug.cgi?id=2182342
|
||||
# Another issue in Patch4
|
||||
Patch11: dnsmasq-2.85-search_servers-rhbz2182342.patch
|
||||
# Downstream only patch; https://bugzilla.redhat.com/show_bug.cgi?id=2186481
|
||||
# complements patch10
|
||||
Patch42: dnsmasq-2.85-serv_domain-rh2186481-2.patch
|
||||
Patch12: dnsmasq-2.85-serv_domain-rh2186481-2.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=1f8f78a49b8fd6b2862a3882053b1c6e6e111e5c
|
||||
Patch43: dnsmasq-2.87-log-root-writeable.patch
|
||||
Patch13: dnsmasq-2.87-log-root-writeable.patch
|
||||
# Downstream only patch; https://bugzilla.redhat.com/show_bug.cgi?id=2209031
|
||||
# complements patch42
|
||||
Patch44: dnsmasq-2.85-domain-blocklist-speedup.patch
|
||||
# http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=dd33e98da09c487a58b6cb6693b8628c0b234a3b
|
||||
Patch45: dnsmasq-2.80-synth-domain-RHEL-15216.patch
|
||||
# https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=214a046f47b9f7dd56f5eef3a8678ccbd6e973b7
|
||||
Patch46: dnsmasq-2.90-CVE-2023-50387-CVE-2023-50868.patch
|
||||
# complements patch12
|
||||
Patch14: dnsmasq-2.85-domain-blocklist-speedup.patch
|
||||
# https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;h=9bbf098a970c9e5fa251939208e25fb21064d1be
|
||||
Patch15: dnsmasq-2.87-coverity-forward-cache.patch
|
||||
|
||||
# This is workaround to nettle bug #1549190
|
||||
# https://bugzilla.redhat.com/show_bug.cgi?id=1549190
|
||||
@ -110,9 +79,15 @@ BuildRequires: pkgconfig
|
||||
BuildRequires: libidn2-devel
|
||||
BuildRequires: nettle-devel
|
||||
Buildrequires: gcc
|
||||
BuildRequires: gnupg2
|
||||
|
||||
BuildRequires: systemd
|
||||
BuildRequires: systemd-rpm-macros
|
||||
%{?systemd_requires}
|
||||
%if %{with sourcegit}
|
||||
BuildRequires: git-core
|
||||
%endif
|
||||
BuildRequires: make
|
||||
|
||||
%description
|
||||
Dnsmasq is lightweight, easy to configure DNS forwarder and DHCP server.
|
||||
@ -133,79 +108,39 @@ server's leases.
|
||||
|
||||
|
||||
%prep
|
||||
%setup -q -n %{name}-%{version}%{?extraversion}
|
||||
%patch1 -p1 -b .underflow
|
||||
%patch3 -p1 -b .fips
|
||||
%patch4 -p1 -b .dnssec
|
||||
%patch5 -p1 -b .rh1602477
|
||||
%patch6 -p1 -b .rh1602477-2
|
||||
%patch7 -p1 -b .rh1752569
|
||||
%patch8 -p1 -b .rh1752569
|
||||
%patch9 -p1 -b .rh1728698-1
|
||||
%patch10 -p1 -b .rh1728698-2
|
||||
%patch11 -p1 -b .rh1728698-3
|
||||
%patch12 -p1 -b .rh1728698-4
|
||||
%patch13 -p1 -b .rh1746411
|
||||
%patch14 -p1 -b .rh1700916
|
||||
%patch15 -p1 -b .rh1795370
|
||||
%patch16 -p1 -b .rh1779187-1
|
||||
%patch17 -p1 -b .rh1779187-2
|
||||
%patch18 -p1 -b .rh1779187-3
|
||||
%patch19 -p1 -b .rh1779187-4
|
||||
%patch20 -p1 -b .rh1816613
|
||||
%patch21 -p1 -b .rh1829448
|
||||
%patch22 -p1 -b .CVE-2020-25681
|
||||
%patch23 -p1 -b .CVE-2020-25684
|
||||
%patch24 -p1 -b .CVE-2020-25685
|
||||
%patch25 -p1 -b .CVE-2020-25686
|
||||
%patch26 -p1 -b .CVE-2020-25686-2
|
||||
%patch27 -p1 -b .rh1921153
|
||||
%patch28 -p1 -b .rh1887649-table
|
||||
%patch29 -p1 -b .rh1887649
|
||||
%patch30 -p1 -b .CVE-2021-3448
|
||||
%patch31 -p1 -b .rh1947039
|
||||
%patch32 -p1 -b .rh1998448
|
||||
%patch33 -p1 -b .dhcpv6-client-arch
|
||||
%patch34 -p1 -b .rh1919894
|
||||
%patch35 -p1 -b .CVE-2022-0934
|
||||
%patch36 -p1 -b .rh2049691
|
||||
%patch37 -p1 -b .SIOCGSTAMP
|
||||
%patch38 -p1 -b .rh2120357
|
||||
%patch39 -p1 -b .rh2169355
|
||||
%patch40 -p1 -b .CVE-2023-28450
|
||||
%patch41 -p1 -b .rh2186481
|
||||
%patch42 -p1 -b .rh2186481-2
|
||||
%patch43 -p1 -b .rh2156789
|
||||
%patch44 -p1 -b .rh2209031
|
||||
%patch45 -p1 -b .RHEL-15216
|
||||
%patch46 -p1 -b .CVE-2023-50387-CVE-2023-50868
|
||||
%if 0%{?fedora}
|
||||
%gpgverify -k 4 -s 3 -d 0
|
||||
%endif
|
||||
%if %{with sourcegit}
|
||||
%autosetup -n %{name}-%{version}%{?extraversion} -N -S git_am
|
||||
# If preparing with sourcegit, drop again source directory
|
||||
# and clone git repository
|
||||
# FIXME: deleting just unpacked sources is dangerous
|
||||
# But using %%setup changes used directories in %%build and %%install
|
||||
rm -rf %{_builddir}/%{name}-%{version}%{?extraversion}
|
||||
cd %{_builddir}
|
||||
git clone -b %{gittag} %{git_upstream} %{name}-%{version}%{?extraversion}
|
||||
cd %{name}-%{version}%{?extraversion}
|
||||
git checkout -b rpmbuild
|
||||
%else
|
||||
%autosetup -n %{name}-%{version}%{?extraversion} -N
|
||||
%endif
|
||||
# Apply patches on top
|
||||
%autopatch -p1
|
||||
|
||||
# use /var/lib/dnsmasq instead of /var/lib/misc
|
||||
for file in dnsmasq.conf.example man/dnsmasq.8 man/es/dnsmasq.8 src/config.h; do
|
||||
sed -i 's|/var/lib/misc/dnsmasq.leases|/var/lib/dnsmasq/dnsmasq.leases|g' "$file"
|
||||
done
|
||||
|
||||
# fix the path to the trust anchor
|
||||
sed -i 's|%%%%PREFIX%%%%|%{_prefix}|' dnsmasq.conf.example
|
||||
|
||||
#set dnsmasq user / group
|
||||
sed -i 's|#user=|user=dnsmasq|' dnsmasq.conf.example
|
||||
sed -i 's|#group=|group=dnsmasq|' dnsmasq.conf.example
|
||||
#set default user /group in src/config.h
|
||||
sed -i 's|#define CHUSER "nobody"|#define CHUSER "dnsmasq"|' src/config.h
|
||||
sed -i 's|#define CHGRP "dip"|#define CHGRP "dnsmasq"|' src/config.h
|
||||
sed -i "s|\(#\s*define RUNFILE\) \"/var/run/dnsmasq.pid\"|\1 \"%{_rundir}/dnsmasq.pid\"|" src/config.h
|
||||
|
||||
# optional parts
|
||||
sed -i 's|^COPTS[[:space:]]*=|\0 -DHAVE_DBUS -DHAVE_LIBIDN2 -DHAVE_DNSSEC|' Makefile
|
||||
|
||||
#enable /etc/dnsmasq.d fix bz 526703, ignore RPM backup files
|
||||
cat << EOF >> dnsmasq.conf.example
|
||||
|
||||
# Include all files in /etc/dnsmasq.d except RPM backup files
|
||||
conf-dir=/etc/dnsmasq.d,.rpmnew,.rpmsave,.rpmorig
|
||||
EOF
|
||||
|
||||
|
||||
%build
|
||||
%make_build CFLAGS="$RPM_OPT_FLAGS" LDFLAGS="$RPM_LD_FLAGS"
|
||||
%make_build -C contrib/lease-tools CFLAGS="$RPM_OPT_FLAGS" LDFLAGS="$RPM_LD_FLAGS"
|
||||
@ -240,14 +175,13 @@ install -m644 %{SOURCE1} %{buildroot}%{_unitdir}
|
||||
rm -rf %{buildroot}%{_initrddir}
|
||||
|
||||
#install systemd sysuser file
|
||||
install -Dpm 644 %{SOURCE2} %{buildroot}%{_sysusersdir}/dnsmasq.conf
|
||||
install -Dpm 644 %{SOURCE2} %{buildroot}%{_sysusersdir}/%{name}.conf
|
||||
|
||||
%pre
|
||||
#precreate users so that rpm can install files owned by that user
|
||||
%sysusers_create_package %{name} %{SOURCE2}
|
||||
%sysusers_create_compat %{SOURCE2}
|
||||
|
||||
%post
|
||||
#https://fedoraproject.org/wiki/Changes/SystemdSysusers
|
||||
%systemd_post dnsmasq.service
|
||||
|
||||
%preun
|
||||
@ -278,100 +212,146 @@ install -Dpm 644 %{SOURCE2} %{buildroot}%{_sysusersdir}/dnsmasq.conf
|
||||
%{_mandir}/man1/dhcp_*
|
||||
|
||||
%changelog
|
||||
* Mon Mar 18 2024 Tomas Korbar <tkorbar@redhat.com> - 2.79-33
|
||||
- Fix CVE 2023-50387 and CVE 2023-50868
|
||||
- Resolves: RHEL-25667
|
||||
- Resolves: RHEL-25629
|
||||
* Fri Jul 28 2023 Petr Menšík <pemensik@redhat.com> - 2.85-14
|
||||
- Backport Coverity fix to hide detected issue (#2156789)
|
||||
|
||||
* Wed Nov 01 2023 Petr Menšík <pemensik@redhat.com> - 2.79-32
|
||||
- Do not crash on invalid domain in --synth-domain option (RHEL-15216)
|
||||
* Thu Jul 20 2023 Petr Menšík <pemensik@redhat.com> - 2.85-13
|
||||
- Rebuild with modified gating settings
|
||||
|
||||
* Wed Jun 14 2023 Petr Menšík <pemensik@redhat.com> - 2.79-31
|
||||
- Do not create and search --local and --address=/x/# domains (#2233542)
|
||||
|
||||
* Wed Jun 14 2023 Petr Menšík <pemensik@redhat.com> - 2.79-30
|
||||
* Wed Jun 14 2023 Petr Menšík <pemensik@redhat.com> - 2.85-12
|
||||
- Make create logfile writeable by root (#2156789)
|
||||
|
||||
* Wed May 10 2023 Petr Menšík <pemensik@redhat.com> - 2.79-29
|
||||
* Fri Jun 09 2023 Petr Menšík <pemensik@redhat.com> - 2.85-11
|
||||
- Do not create and search --local and --address=/x/# domains (#2209031)
|
||||
|
||||
* Wed May 10 2023 Petr Menšík <pemensik@redhat.com> - 2.85-10
|
||||
- Fix also dynamically set resolvers over dbus (#2186481)
|
||||
|
||||
* Fri Apr 21 2023 Petr Menšík <pemensik@redhat.com> - 2.79-28
|
||||
- Correct possible crashes when server=/example.net/# is used (#2186481)
|
||||
* Fri May 05 2023 Petr Menšík <pemensik@redhat.com> - 2.85-9
|
||||
- Properly initialize domain parameter in dnssec mode (#2182342)
|
||||
|
||||
* Mon Apr 03 2023 Petr Menšík <pemensik@redhat.com> - 2.79-27
|
||||
- Limit offered EDNS0 size to 1232 (CVE-2023-28450)
|
||||
* Fri Apr 21 2023 Petr Menšík <pemensik@redhat.com> - 2.85-8
|
||||
- Correct possible crashes when server=/example.net/# is used (#2188712)
|
||||
|
||||
* Wed Feb 15 2023 Petr Menšík <pemensik@redhat.com> - 2.79-26
|
||||
- Avoid DHCPv6 relayed replies with Client Link-Layer Address (#2169355)
|
||||
* Mon Apr 03 2023 Petr Menšík <pemensik@redhat.com> - 2.85-7
|
||||
- Limit offered EDNS0 size 1232 (CVE-2023-28450)
|
||||
|
||||
* Thu Jan 26 2023 Petr Menšík <pemensik@redhat.com> - 2.79-25
|
||||
- Use upstream change for CVE-2022-0934 (#2164859)
|
||||
* Thu Jan 26 2023 Petr Menšík <pemensik@redhat.com> - 2.85-6
|
||||
- Use upstream change for CVE-2022-0934 (#2126586)
|
||||
|
||||
* Mon Aug 22 2022 Petr Menšík <pemensik@redhat.com> - 2.79-24
|
||||
- Prevent endless loop in forward_query (#2120357)
|
||||
* Mon Aug 22 2022 Petr Menšík <pemensik@redhat.com> - 2.85-5
|
||||
- Prevent endless loop in forward_query (#2120711)
|
||||
|
||||
* Thu May 12 2022 Petr Menšík <pemensik@redhat.com> - 2.79-23
|
||||
- Add IPv6 ntp-server suboptions support (#2049691)
|
||||
|
||||
* Fri Mar 25 2022 Petr Menšík <pemensik@redhat.com> - 2.79-22
|
||||
* Fri Mar 25 2022 Petr Menšík <pemensik@redhat.com> - 2.85-4
|
||||
- Prevent use after free in dhcp6_no_relay (CVE-2022-0934)
|
||||
|
||||
* Thu Jan 27 2022 Petr Menšík <pemensik@redhat.com> - 2.79-21
|
||||
- Send queries only to best domain-specific server (#1919894)
|
||||
|
||||
* Mon Sep 20 2021 Petr Menšík <pemensik@redhat.com> - 2.79-20
|
||||
* Thu Jan 27 2022 Petr Menšík <pemensik@redhat.com> - 2.85-3
|
||||
- Send queries only to best domain-specific server (#2047510)
|
||||
- Offer alternate DHCPv6 address if requested is already leased (#1998448)
|
||||
|
||||
* Tue Jun 29 2021 Petr Menšík <pemensik@redhat.com> - 2.79-19
|
||||
- Correct typo in man page (#1947039)
|
||||
* Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 2.85-2
|
||||
- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
|
||||
Related: rhbz#1991688
|
||||
|
||||
* Thu Mar 18 2021 Petr Menšík <pemensik@redhat.com> - 2.79-18
|
||||
- Properly randomize outgoing ports also with bound interface (CVE-2021-3448)
|
||||
* Thu Apr 15 2021 Petr Menšík <pemensik@redhat.com> - 2.85-1
|
||||
- Update to 2.85 (#1978728)
|
||||
- Switch systemd unit to forking, reports error on startup (#1774028)
|
||||
|
||||
* Fri Feb 12 2021 Petr Menšík <pemensik@redhat.com> - 2.79-17
|
||||
- Fix sporadic bind-dynamic failures (#1887649)
|
||||
* Thu Apr 15 2021 Mohan Boddu <mboddu@redhat.com> - 2.84-2
|
||||
- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937
|
||||
|
||||
* Wed Jan 27 2021 Petr Menšík <pemensik@redhat.com> - 2.79-16
|
||||
- Fix network errors on queries both from ipv4 and ipv6 (#1921153)
|
||||
* Tue Jan 26 2021 Petr Menšík <pemensik@redhat.com> - 2.84-1
|
||||
- Update to 2.84
|
||||
|
||||
* Wed Nov 25 2020 Petr Menšík <pemensik@redhat.com> - 2.79-15
|
||||
- Fix various issues in dnssec validation (CVE-2020-25681)
|
||||
- Accept responses only on correct sockets (CVE-2020-25684)
|
||||
- Use strong verification on queries (CVE-2020-25685)
|
||||
* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.83-2
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
|
||||
|
||||
* Wed Aug 26 2020 Tomas Korbar <tkorbar@redhat.com> - 2.79-14
|
||||
- Honor sysusers.d during installation (#1819684)
|
||||
* Tue Jan 19 2021 Petr Menšík <pemensik@redhat.com> - 2.83-1
|
||||
- Update to 2.83, fix CVE-2020-25681-7
|
||||
|
||||
* Tue May 05 2020 Petr Menšík <pemensik@redhat.com> - 2.79-13
|
||||
- Fix mixed address family reservations on DHCP (#1829448)
|
||||
* Fri Oct 09 2020 Petr Menšík <pemensik@redhat.com> - 2.82-4
|
||||
- Remove uninitialized condition from downstream patch
|
||||
|
||||
* Mon Mar 30 2020 Tomas Korbar <tkorbar@redhat.com> - 2.79-12
|
||||
- Minimize count of close syscalls on startup (#1816613)
|
||||
* Wed Sep 30 2020 Petr Menšík <pemensik@redhat.com> - 2.82-3
|
||||
- Listen only on localhost interface, return port unreachable on all others
|
||||
(#1852373)
|
||||
|
||||
* Mon Mar 02 2020 Petr Menšík <pemensik@redhat.com> - 2.79-11
|
||||
- Support multiple static leases for single mac on IPv6 (#1779187)
|
||||
* Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.82-2
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
|
||||
|
||||
* Mon Feb 17 2020 Tomas Korbar <tkorbar@redhat.com> - 2.79-10
|
||||
- Fix memory leak in helper.c (#1795370)
|
||||
* Mon Jul 20 2020 Petr Menšík <pemensik@redhat.com> - 2.82-1
|
||||
- Update to 2.82
|
||||
|
||||
* Tue Dec 10 2019 Tomas Korbar <tkorbar@redhat.com> - 2.79-9
|
||||
- Fix replies to non-recursive queries (#1700916)
|
||||
* Tue Jun 30 2020 Petr Menšík <pemensik@redhat.com> - 2.81-4
|
||||
- Accept queries only from localhost (CVE-2020-14312)
|
||||
|
||||
* Mon Dec 09 2019 Tomas Korbar <tkorbar@redhat.com> - 2.79-8
|
||||
- Fix dhcp_lease_time (#1746411)
|
||||
* Mon May 11 2020 Petr Menšík <pemensik@redhat.com> - 2.81-3
|
||||
- Correct multiple entries with the same mac address (#1834454)
|
||||
|
||||
* Mon Dec 09 2019 Tomas Korbar <tkorbar@redhat.com> - 2.79-7
|
||||
- Fix TCP queries after interface recreation (#1728698)
|
||||
* Thu Apr 16 2020 Petr Menšík <pemensik@redhat.com> - 2.81-2
|
||||
- Update to 2.81 (#1823139)
|
||||
|
||||
* Mon Sep 30 2019 Petr Menšík <pemensik@redhat.com> - 2.79-6
|
||||
- Send dhcp_release even for addresses not on local network (#1749092)
|
||||
* Mon Mar 23 2020 Petr Menšík <pemensik@redhat.com> - 2.81-1.rc3
|
||||
- Update to 2.81rc3
|
||||
|
||||
* Thu Jul 18 2019 Petr Menšík <pemensik@redhat.com> - 2.79-5
|
||||
- Fix Coverity detected issues (#1602477)
|
||||
* Mon Mar 23 2020 Petr Menšík <pemensik@redhat.com> - 2.80-14
|
||||
- Fix last build breakage of DNS (#1814468)
|
||||
|
||||
* Thu Jul 26 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 2.79-4
|
||||
* Tue Mar 10 2020 Petr Menšík <pemensik@redhat.com> - 2.80-13
|
||||
- Respond to any local name also withou rd bit set (#1647464)
|
||||
|
||||
* Wed Mar 04 2020 Petr Menšík <pemensik@redhat.com> - 2.80-12
|
||||
- Support multiple static leases for single mac on IPv6 (#1810172)
|
||||
|
||||
* Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.80-11
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
|
||||
|
||||
* Wed Aug 28 2019 Petr Menšík <pemensik@redhat.com> - 2.80-10
|
||||
- Fix CPU intensive RA flood (#1739797)
|
||||
|
||||
* Fri Aug 09 2019 Petr Menšík <pemensik@redhat.com> - 2.80-9
|
||||
- Remove SO_TIMESTAMP support, DHCP was broken (#1739081)
|
||||
|
||||
* Wed Jul 31 2019 Petr Menšík <pemensik@redhat.com> - 2.80-8
|
||||
- Compile with nettle 3.5
|
||||
- Support missing SIOCGSTAMP ioctl
|
||||
|
||||
* Wed Jul 31 2019 Petr Menšík <pemensik@redhat.com> - 2.80-7
|
||||
- Fix TCP listener after interface recreated (#1728701)
|
||||
|
||||
* Wed Jul 24 2019 Petr Menšík <pemensik@redhat.com> - 2.80-6
|
||||
- Do not return NXDOMAIN on empty non-terminals (#1674067)
|
||||
|
||||
* Wed Jul 24 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.80-5
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
|
||||
|
||||
* Mon Apr 08 2019 Petr Menšík <pemensik@redhat.com> - 2.80-4
|
||||
- Use more recent macro to create dnsmasq user
|
||||
|
||||
* Fri Feb 15 2019 Petr Menšík <pemensik@redhat.com> - 2.80-3
|
||||
- Apply patches by autosetup
|
||||
|
||||
* Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.80-2
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
|
||||
|
||||
* Mon Aug 20 2018 Petr Menšík <pemensik@redhat.com> - 2.80-1
|
||||
- Update to 2.80
|
||||
|
||||
* Thu Aug 09 2018 Petr Menšík <pemensik@redhat.com> - 2.79-8
|
||||
- Better randomize ports
|
||||
|
||||
* Tue Jul 31 2018 Florian Weimer <fweimer@redhat.com> - 2.79-7
|
||||
- Rebuild with fixed binutils
|
||||
|
||||
* Fri Jul 27 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 2.79-6
|
||||
- Rebuild for new binutils
|
||||
|
||||
* Thu Jul 26 2018 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 2.79-5
|
||||
- Fix %%pre scriptlet (#1548050)
|
||||
|
||||
* Thu Jul 12 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.79-4
|
||||
- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
|
||||
|
||||
* Mon Jul 02 2018 Petr Menšík <pemensik@redhat.com> - 2.79-3
|
||||
- Make dnsmasq leases writeable by root again (#1554390)
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user