gpxe-cid.patch: don't get hw address twice

This commit is contained in:
Jiri Popelka 2012-08-24 12:04:42 +02:00
parent c0272c7d8a
commit 47fd457046
2 changed files with 3 additions and 52 deletions

View File

@ -73,60 +73,11 @@ diff -up dhcp-4.2.2/client/dhclient.c.gpxe-cid dhcp-4.2.2/client/dhclient.c
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 sll;
}
+static unsigned char * get_ib_hw_addr(char * name)
+{
+ struct ifaddrs *ifaddrs = NULL;
+ struct ifaddrs *ifa = NULL;
+ struct sockaddr_ll *sll = NULL;
+ static unsigned char hw_addr[8];
+
+ if (getifaddrs(&ifaddrs) == -1)
+ return NULL;
+
+ for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr == NULL)
+ continue;
+ if (ifa->ifa_addr->sa_family != AF_PACKET)
+ continue;
+ if (ifa->ifa_flags & IFF_LOOPBACK)
+ continue;
+ if (strcmp(ifa->ifa_name, name) == 0) {
+ sll = (struct sockaddr_ll *)(void *)ifa->ifa_addr;
+ break;
+ }
+ }
+ if (sll == NULL) {
+ freeifaddrs(ifaddrs);
+ return NULL;
+ }
+ memcpy(hw_addr, &sll->sll_addr[sll->sll_halen - 8], 8);
+ freeifaddrs(ifaddrs);
+ return (unsigned char *)&hw_addr;
+}
+
void
get_hw_addr(struct interface_info *info)
{
@@ -599,6 +630,7 @@ get_hw_addr(struct interface_info *info)
struct ifaddrs *ifaddrs = NULL;
struct ifaddrs *ifa = NULL;
struct sockaddr_ll *sll = NULL;
+ unsigned char *hw_addr;
if (getifaddrs(&ifaddrs) == -1)
log_fatal("Failed to get interfaces");
@@ -660,6 +692,10 @@ get_hw_addr(struct interface_info *info)
@@ -698,6 +698,7 @@ get_hw_addr(struct interface_info *info)
hw->hlen = 1;
hw->hbuf[0] = HTYPE_INFINIBAND;
+ hw_addr = get_ib_hw_addr(name);
+ if (!hw_addr)
+ log_fatal("Failed getting %s hw addr", name);
+ memcpy (&hw->hbuf [1], hw_addr, 8);
+ memcpy(&hw->hbuf[1], &sll->sll_addr[sll->sll_halen - 8], 8);
break;
#if defined(ARPHRD_PPP)
case ARPHRD_PPP:

View File

@ -378,7 +378,7 @@ diff -up dhcp-4.2.4/common/lpf.c.lpf-ib dhcp-4.2.4/common/lpf.c
+ continue;
+
+ if (strcmp((*ifa)->ifa_name, name) == 0)
+ return (struct sockaddr_ll *)(*ifa)->ifa_addr;
+ return (struct sockaddr_ll *)(void *)(*ifa)->ifa_addr;
+ }
+ return NULL;
+}