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ib.patch: added fall-back method ioctl_get_ll() (#626514-c#63, #840601).

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This commit is contained in:
Jiri Popelka 2012-07-23 13:39:43 +02:00
parent 6e8741e2ed
commit cd552e5d99
3 changed files with 61 additions and 55 deletions
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2
dhcp-4.2.2-gpxe-cid.patch
View File

@ -74,7 +74,7 @@ diff -up dhcp-4.2.2/common/lpf.c.gpxe-cid dhcp-4.2.2/common/lpf.c
--- dhcp-4.2.2/common/lpf.c.gpxe-cid 2011-09-16 18:23:20.183453996 +0200
+++ dhcp-4.2.2/common/lpf.c 2011-09-16 18:25:28.235804421 +0200
@@ -591,6 +591,37 @@ void maybe_setup_fallback ()
return NULL;
return sll;
}
+static unsigned char * get_ib_hw_addr(char * name)

108
dhcp-4.2.4-lpf-ib.patch
View File

@ -1,6 +1,6 @@
diff -up dhcp-4.2.4/client/dhclient.c.lpf-ib dhcp-4.2.4/client/dhclient.c
--- dhcp-4.2.4/client/dhclient.c.lpf-ib 2012-07-18 16:41:17.958560314 +0200
+++ dhcp-4.2.4/client/dhclient.c 2012-07-18 16:41:17.971560135 +0200
--- dhcp-4.2.4/client/dhclient.c.lpf-ib 2012-07-18 21:08:48.100835005 +0200
+++ dhcp-4.2.4/client/dhclient.c 2012-07-18 21:08:48.111834856 +0200
@@ -113,6 +113,8 @@ static int check_domain_name_list(const
static int check_option_values(struct universe *universe, unsigned int opt,
const char *ptr, size_t len);
@ -56,8 +56,8 @@ diff -up dhcp-4.2.4/client/dhclient.c.lpf-ib dhcp-4.2.4/client/dhclient.c
*
* Each routine is called from the dhclient_state_machine() in one of
diff -up dhcp-4.2.4/common/bpf.c.lpf-ib dhcp-4.2.4/common/bpf.c
--- dhcp-4.2.4/common/bpf.c.lpf-ib 2012-07-18 16:41:17.959560300 +0200
+++ dhcp-4.2.4/common/bpf.c 2012-07-18 16:41:17.972560121 +0200
--- dhcp-4.2.4/common/bpf.c.lpf-ib 2012-07-18 21:08:48.101834991 +0200
+++ dhcp-4.2.4/common/bpf.c 2012-07-18 21:08:48.111834856 +0200
@@ -198,11 +198,44 @@ struct bpf_insn dhcp_bpf_filter [] = {
BPF_STMT(BPF_RET+BPF_K, 0),
};
@ -104,8 +104,8 @@ diff -up dhcp-4.2.4/common/bpf.c.lpf-ib dhcp-4.2.4/common/bpf.c
struct bpf_insn dhcp_bpf_tr_filter [] = {
/* accept all token ring packets due to variable length header */
diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
--- dhcp-4.2.4/common/lpf.c.lpf-ib 2012-07-18 16:41:17.960560286 +0200
+++ dhcp-4.2.4/common/lpf.c 2012-07-18 16:41:35.004325607 +0200
--- dhcp-4.2.4/common/lpf.c.lpf-ib 2012-07-18 21:08:48.101834991 +0200
+++ dhcp-4.2.4/common/lpf.c 2012-07-18 21:10:47.367210799 +0200
@@ -42,6 +42,7 @@
#include "includes/netinet/udp.h"
#include "includes/netinet/if_ether.h"
@ -358,45 +358,61 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
length = recvmsg (interface -> rfdesc, &msg, 0);
if (length <= 0)
return length;
@@ -461,34 +591,63 @@ void maybe_setup_fallback ()
@@ -461,11 +591,32 @@ void maybe_setup_fallback ()
}
}
-void
-get_hw_addr(const char *name, struct hardware *hw) {
- int sock;
- struct ifreq tmp;
- struct sockaddr *sa;
+struct sockaddr_ll *
+get_ll (struct ifaddrs *ifaddrs, struct ifaddrs **ifa, char *name)
+{
+ for (*ifa = ifaddrs; *ifa != NULL; *ifa = (*ifa)->ifa_next) {
+ if ((*ifa)->ifa_addr == NULL)
+ continue;
- if (strlen(name) >= sizeof(tmp.ifr_name)) {
- log_fatal("Device name too long: \"%s\"", name);
- }
+
+ if ((*ifa)->ifa_addr->sa_family != AF_PACKET)
+ continue;
+
+ if ((*ifa)->ifa_flags & IFF_LOOPBACK)
+ continue;
- sock = socket(AF_INET, SOCK_DGRAM, 0);
- if (sock < 0) {
- log_fatal("Can't create socket for \"%s\": %m", name);
+
+ if (strcmp((*ifa)->ifa_name, name) == 0)
+ return (struct sockaddr_ll **)(*ifa)->ifa_addr;
}
+ return (struct sockaddr_ll *)(*ifa)->ifa_addr;
+ }
+ return NULL;
+}
+
+struct sockaddr_ll *
+ioctl_get_ll(char *name)
+{
int sock;
struct ifreq tmp;
- struct sockaddr *sa;
+ struct sockaddr *sa = NULL;
+ struct sockaddr_ll *sll = NULL;
- memset(&tmp, 0, sizeof(tmp));
- strcpy(tmp.ifr_name, name);
- if (ioctl(sock, SIOCGIFHWADDR, &tmp) < 0) {
if (strlen(name) >= sizeof(tmp.ifr_name)) {
log_fatal("Device name too long: \"%s\"", name);
@@ -479,16 +630,44 @@ get_hw_addr(const char *name, struct har
memset(&tmp, 0, sizeof(tmp));
strcpy(tmp.ifr_name, name);
if (ioctl(sock, SIOCGIFHWADDR, &tmp) < 0) {
- log_fatal("Error getting hardware address for \"%s\": %m",
- name);
+ log_fatal("Error getting hardware address for \"%s\": %m",
name);
}
sa = &tmp.ifr_hwaddr;
- switch (sa->sa_family) {
+ sll = dmalloc (sizeof (struct sockaddr_ll), MDL);
+ if (!sll)
+ log_fatal("Unable to allocate memory for link layer address");
+ memcpy(&sll->sll_hatype, &sa->sa_family, sizeof (sll->sll_hatype));
+ memcpy(sll->sll_addr, sa->sa_data, sizeof (sll->sll_addr));
+ return sll;
+}
+
+void
+get_hw_addr(struct interface_info *info)
+{
@ -410,28 +426,13 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
+ log_fatal("Failed to get interfaces");
+
+ if ((sll = get_ll(ifaddrs, &ifa, name)) == NULL) {
+ char *tmp = NULL;
+ char *real_name = strdup (name);
+ /*
+ * We were unable to get link-layer address for name.
+ * Reason could be RHBZ#840601.
+ * Fall back to ioctl(SIOCGIFHWADDR).
+ */
+ if ((tmp = strrchr (real_name, ':')) != NULL) {
+ *tmp = '\0';
+ log_debug("Failed to get HW address for %s. Seems to be an alias, trying %s instead.\n", name, real_name);
+ if ((sll = get_ll(ifaddrs, &ifa, real_name)) == NULL) {
+ freeifaddrs(ifaddrs);
+ log_fatal("Failed to get HW address for %s\n", name);
+ }
+ } else {
+ freeifaddrs(ifaddrs);
+ log_fatal("Failed to get HW address for %s\n", name);
+ }
+ free (real_name);
}
- sa = &tmp.ifr_hwaddr;
- switch (sa->sa_family) {
+ sll = ioctl_get_ll(name);
+ }
+
+ switch (sll->sll_hatype) {
case ARPHRD_ETHER:
hw->hlen = 7;
@ -441,7 +442,7 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
break;
case ARPHRD_IEEE802:
#ifdef ARPHRD_IEEE802_TR
@@ -496,18 +655,35 @@ get_hw_addr(const char *name, struct har
@@ -496,18 +675,35 @@ get_hw_addr(const char *name, struct har
#endif /* ARPHRD_IEEE802_TR */
hw->hlen = 7;
hw->hbuf[0] = HTYPE_IEEE802;
@ -476,19 +477,20 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
if (local_family != AF_INET6)
- log_fatal("Unsupported device type %d for \"%s\"",
- sa->sa_family, name);
+ log_fatal("Unsupported device type %ld for \"%s\"",
+ (long int)sll->sll_family, name);
+ log_fatal("local_family != AF_INET6 for \"%s\"",
+ name);
hw->hlen = 0;
hw->hbuf[0] = HTYPE_RESERVED;
/* 0xdeadbeef should never occur on the wire,
@@ -520,10 +696,11 @@ get_hw_addr(const char *name, struct har
@@ -520,10 +716,11 @@ get_hw_addr(const char *name, struct har
break;
#endif
default:
+ freeifaddrs(ifaddrs);
log_fatal("Unsupported device type %ld for \"%s\"",
- log_fatal("Unsupported device type %ld for \"%s\"",
- (long int)sa->sa_family, name);
+ (long int)sll->sll_family, name);
+ freeifaddrs(ifaddrs);
+ log_fatal("Unsupported device type %h for \"%s\"",
+ sll->sll_hatype, name);
}
- close(sock);
@ -497,7 +499,7 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
#endif
diff -up dhcp-4.2.4/common/socket.c.lpf-ib dhcp-4.2.4/common/socket.c
--- dhcp-4.2.4/common/socket.c.lpf-ib 2012-03-09 12:28:11.000000000 +0100
+++ dhcp-4.2.4/common/socket.c 2012-07-18 16:41:17.973560107 +0200
+++ dhcp-4.2.4/common/socket.c 2012-07-18 21:08:48.112834843 +0200
@@ -325,7 +325,7 @@ void if_register_send (info)
info->wfdesc = if_register_socket(info, AF_INET, 0);
/* If this is a normal IPv4 address, get the hardware address. */
@ -526,8 +528,8 @@ diff -up dhcp-4.2.4/common/socket.c.lpf-ib dhcp-4.2.4/common/socket.c
if (!quiet_interface_discovery) {
if (info->shared_network != NULL) {
diff -up dhcp-4.2.4/includes/dhcpd.h.lpf-ib dhcp-4.2.4/includes/dhcpd.h
--- dhcp-4.2.4/includes/dhcpd.h.lpf-ib 2012-07-18 16:41:17.961560272 +0200
+++ dhcp-4.2.4/includes/dhcpd.h 2012-07-18 16:41:17.975560079 +0200
--- dhcp-4.2.4/includes/dhcpd.h.lpf-ib 2012-07-18 21:08:48.102834978 +0200
+++ dhcp-4.2.4/includes/dhcpd.h 2012-07-18 21:08:48.114834815 +0200
@@ -1243,6 +1243,7 @@ struct interface_info {
struct shared_network *shared_network;
/* Networks connected to this interface. */

6
dhcp.spec
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@ -18,7 +18,7 @@
Summary: Dynamic host configuration protocol software
Name: dhcp
Version: 4.2.4
Release: 5%{?dist}
Release: 6%{?dist}
# NEVER CHANGE THE EPOCH on this package. The previous maintainer (prior to
# dcantrell maintaining the package) made incorrect use of the epoch and
# that's why it is at 12 now. It should have never been used, but it was.
@ -571,6 +571,10 @@ fi
%changelog
* Mon Jul 23 2012 Jiri Popelka <jpopelka@redhat.com> - 12:4.2.4-6
- ib.patch: added fall-back method (using ioctl(SIOCGIFHWADDR)) when getting
of HW address with getifaddrs() fails (#626514-c#63, #840601).
* Mon Jul 23 2012 Tomas Hozza <thozza@redhat.com> - 12:4.2.4-5
- Dhcpd does not correctly follow DhcpFailOverPeerDN (#838400)