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Reset path before ping

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This commit is contained in:
angt
2016-04-30 14:40:38 +00:00
parent 549fc058ad
commit 0c7390bf8f
1 changed files with 32 additions and 22 deletions
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50
mud.c
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@@ -361,6 +361,8 @@ void mud_set_path (struct path *path, unsigned index,
MUD_ASSERT(sizeof(index)==sizeof(((struct in_pktinfo *)0)->ipi_ifindex)); MUD_ASSERT(sizeof(index)==sizeof(((struct in_pktinfo *)0)->ipi_ifindex));
path->index = index; path->index = index;
if (addr != (struct sockaddr *)&path->addr)
memcpy(&path->addr, addr, sizeof(struct sockaddr_in)); memcpy(&path->addr, addr, sizeof(struct sockaddr_in));
cmsg->cmsg_level = IPPROTO_IP; cmsg->cmsg_level = IPPROTO_IP;
@@ -381,6 +383,8 @@ void mud_set_path (struct path *path, unsigned index,
MUD_ASSERT(sizeof(index)==sizeof(((struct in6_pktinfo *)0)->ipi6_ifindex)); MUD_ASSERT(sizeof(index)==sizeof(((struct in6_pktinfo *)0)->ipi6_ifindex));
path->index = index; path->index = index;
if (addr != (struct sockaddr *)&path->addr)
memcpy(&path->addr, addr, sizeof(struct sockaddr_in6)); memcpy(&path->addr, addr, sizeof(struct sockaddr_in6));
cmsg->cmsg_level = IPPROTO_IPV6; cmsg->cmsg_level = IPPROTO_IPV6;
@@ -399,29 +403,17 @@ void mud_set_path (struct path *path, unsigned index,
} }
static static
struct path *mud_new_path (struct mud *mud, unsigned index, struct sockaddr *addr) void mud_reset_path (struct path *path, unsigned index, struct sockaddr *addr)
{ {
struct path *path = mud_get_path(mud, index, addr); char name[IF_NAMESIZE];
if (path) if (if_indextoname(index, name) != name)
return path; return;
struct iface *iface = mud_get_iface(mud, index); struct ifaddrs *ifaddrs = NULL;
if (!iface) if ((getifaddrs(&ifaddrs) == -1) || !ifaddrs)
return NULL; return;
path = calloc(1, sizeof(struct path));
if (!path)
return NULL;
struct ifaddrs *ifaddrs;
if (getifaddrs(&ifaddrs) == -1) {
free(path);
return NULL;
}
for (struct ifaddrs *ifa = ifaddrs; ifa; ifa = ifa->ifa_next) { for (struct ifaddrs *ifa = ifaddrs; ifa; ifa = ifa->ifa_next) {
struct sockaddr *ifa_addr = ifa->ifa_addr; struct sockaddr *ifa_addr = ifa->ifa_addr;
@@ -432,14 +424,31 @@ struct path *mud_new_path (struct mud *mud, unsigned index, struct sockaddr *add
if (ifa_addr->sa_family != addr->sa_family) if (ifa_addr->sa_family != addr->sa_family)
continue; continue;
if (strncmp(iface->name, ifa->ifa_name, sizeof(iface->name))) if (strncmp(name, ifa->ifa_name, sizeof(name)))
continue; continue;
mud_set_path(path, index, addr, ifa_addr); mud_set_path(path, index, addr, ifa_addr);
break; break;
} }
freeifaddrs(ifaddrs); freeifaddrs(ifaddrs);
}
static
struct path *mud_new_path (struct mud *mud, unsigned index, struct sockaddr *addr)
{
struct path *path = mud_get_path(mud, index, addr);
if (path)
return path;
path = calloc(1, sizeof(struct path));
if (!path)
return NULL;
mud_reset_path(path, index, addr);
if (!path->index) { if (!path->index) {
free(path); free(path);
@@ -1123,6 +1132,7 @@ int mud_push (struct mud *mud)
(now-path->send.time) < mud->send_timeout) (now-path->send.time) < mud->send_timeout)
continue; continue;
mud_reset_path(path, path->index, (struct sockaddr *)&path->addr);
mud_ping_path(mud, path, now); mud_ping_path(mud, path, now);
} }