diff options
| author | Alexander Chernikov <melifaro@FreeBSD.org> | 2022-12-16 19:35:02 +0100 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2022-12-16 19:37:26 +0100 |
| commit | 6825f94570b05f933f09ae1bd7e520954d903e6a (patch) | |
| tree | fe77555625f3f95df634112691ab748d7aaa2ad9 | |
| parent | 176fc68aed32a5675aa643e3b7c6f65ff9ad13d0 (diff) | |
FreeBSD: use interface index instead of IP address when specifying multicast interface
Minor changes from committer.
| -rw-r--r-- | sysdep/bsd/sysio.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sysdep/bsd/sysio.h b/sysdep/bsd/sysio.h index f1887fb4..9fc58486 100644 --- a/sysdep/bsd/sysio.h +++ b/sysdep/bsd/sysio.h @@ -15,6 +15,7 @@ #ifdef __FreeBSD__ /* Should be defined in sysdep/cf/bsd.h, but it is flavor-specific */ #define CONFIG_DONTROUTE_UNICAST +#define CONFIG_USE_IP_MREQN #endif #ifdef __NetBSD__ @@ -45,13 +46,21 @@ #define INIT_MREQ4(maddr,ifa) \ { .imr_multiaddr = ipa_to_in4(maddr), .imr_interface = ip4_to_in4(ifa->sysdep) } +#define INIT_MREQN4(maddr,ifa) \ + { .imr_multiaddr = ipa_to_in4(maddr), .imr_ifindex = ifa->index } + static inline int sk_setup_multicast4(sock *s) { - struct in_addr ifa = ip4_to_in4(s->iface->sysdep); u8 ttl = s->ttl; u8 n = 0; +#ifdef CONFIG_USE_IP_MREQN + struct ip_mreqn ifa = { .imr_ifindex = s->iface->index }; +#else + struct in_addr ifa = ip4_to_in4(s->iface->sysdep); +#endif + /* This defines where should we send _outgoing_ multicasts */ if (setsockopt(s->fd, IPPROTO_IP, IP_MULTICAST_IF, &ifa, sizeof(ifa)) < 0) ERR("IP_MULTICAST_IF"); @@ -68,7 +77,11 @@ sk_setup_multicast4(sock *s) static inline int sk_join_group4(sock *s, ip_addr maddr) { +#ifdef CONFIG_USE_IP_MREQN + struct ip_mreqn mr = INIT_MREQN4(maddr, s->iface); +#else struct ip_mreq mr = INIT_MREQ4(maddr, s->iface); +#endif if (setsockopt(s->fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mr, sizeof(mr)) < 0) ERR("IP_ADD_MEMBERSHIP"); @@ -79,7 +92,11 @@ sk_join_group4(sock *s, ip_addr maddr) static inline int sk_leave_group4(sock *s, ip_addr maddr) { +#ifdef CONFIG_USE_IP_MREQN + struct ip_mreqn mr = INIT_MREQN4(maddr, s->iface); +#else struct ip_mreq mr = INIT_MREQ4(maddr, s->iface); +#endif if (setsockopt(s->fd, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mr, sizeof(mr)) < 0) ERR("IP_ADD_MEMBERSHIP"); |