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modules: make and use pw_net_is_multicast

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This commit is contained in:
Wim Taymans 2026-05-12 13:02:21 +02:00
parent 6d998a9193
commit b54bac1862
6 changed files with 20 additions and 72 deletions
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15
src/modules/module-netjack2-manager.c
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@ -810,19 +810,6 @@ static int create_filters(struct follower *follower)
return res;
}
static bool is_multicast(struct sockaddr *sa, socklen_t salen)
{
if (sa->sa_family == AF_INET) {
static const uint32_t ipv4_mcast_mask = 0xe0000000;
struct sockaddr_in *sa4 = (struct sockaddr_in*)sa;
return (ntohl(sa4->sin_addr.s_addr) & ipv4_mcast_mask) == ipv4_mcast_mask;
} else if (sa->sa_family == AF_INET6) {
struct sockaddr_in6 *sa6 = (struct sockaddr_in6*)sa;
return sa6->sin6_addr.s6_addr[0] == 0xff;
}
return false;
}
static int make_data_socket(struct sockaddr_storage *sa, socklen_t salen,
bool loop, int ttl, int dscp, const char *ifname)
{
@ -857,7 +844,7 @@ static int make_data_socket(struct sockaddr_storage *sa, socklen_t salen,
if (setsockopt(fd, IPPROTO_IP, IP_TOS, &val, sizeof(val)) < 0)
pw_log_warn("setsockopt(IP_TOS) failed: %m");
}
if (is_multicast((struct sockaddr*)sa, salen)) {
if (pw_net_is_multicast(sa)) {
val = loop;
if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, &val, sizeof(val)) < 0)
pw_log_warn("setsockopt(IP_MULTICAST_LOOP) failed: %m");