diff options
Diffstat (limited to 'src/libsystemd-network/src/icmp6-util.c')
| -rw-r--r-- | src/libsystemd-network/src/icmp6-util.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/libsystemd-network/src/icmp6-util.c b/src/libsystemd-network/src/icmp6-util.c index 0e78e58444..39f9f5785f 100644 --- a/src/libsystemd-network/src/icmp6-util.c +++ b/src/libsystemd-network/src/icmp6-util.c @@ -18,6 +18,7 @@ ***/ #include <errno.h> +#include <net/if.h> #include <netinet/icmp6.h> #include <netinet/in.h> #include <netinet/ip6.h> @@ -48,7 +49,9 @@ int icmp6_bind_router_solicitation(int index) { .ipv6mr_interface = index, }; _cleanup_close_ int s = -1; - int r, zero = 0, one = 1, hops = 255; + char ifname[IF_NAMESIZE] = ""; + static const int zero = 0, one = 1, hops = 255; + int r; s = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC | SOCK_NONBLOCK, IPPROTO_ICMPV6); if (s < 0) @@ -84,6 +87,17 @@ int icmp6_bind_router_solicitation(int index) { if (r < 0) return -errno; + r = setsockopt(s, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)); + if (r < 0) + return -errno; + + if (if_indextoname(index, ifname) == 0) + return -errno; + + r = setsockopt(s, SOL_SOCKET, SO_BINDTODEVICE, ifname, strlen(ifname)); + if (r < 0) + return -errno; + r = s; s = -1; return r; |