diff options
Diffstat (limited to 'net/ipv4/ip_sockglue.c')
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 21d2ffa919e9..cf377377b52d 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -894,7 +894,7 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname, { struct inet_sock *inet = inet_sk(sk); struct net *net = sock_net(sk); - int val = 0, err; + int val = 0, err, retv; bool needs_rtnl = setsockopt_needs_rtnl(optname); switch (optname) { @@ -938,8 +938,12 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname, /* If optlen==0, it is equivalent to val == 0 */ - if (optname == IP_ROUTER_ALERT) - return ip_ra_control(sk, val ? 1 : 0, NULL); + if (optname == IP_ROUTER_ALERT) { + retv = ip_ra_control(sk, val ? 1 : 0, NULL); + if (retv == 0) + inet_assign_bit(RTALERT, sk, val); + return retv; + } if (ip_mroute_opt(optname)) return ip_mroute_setsockopt(sk, optname, optval, optlen); @@ -1575,6 +1579,9 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname, case IP_BIND_ADDRESS_NO_PORT: val = inet_test_bit(BIND_ADDRESS_NO_PORT, sk); goto copyval; + case IP_ROUTER_ALERT: + val = inet_test_bit(RTALERT, sk); + goto copyval; case IP_TTL: val = READ_ONCE(inet->uc_ttl); if (val < 0) |