diff options
| -rw-r--r-- | include/linux/in.h | 1 | ||||
| -rw-r--r-- | include/net/inet_sock.h | 3 | ||||
| -rw-r--r-- | net/ipv4/af_inet.c | 1 | ||||
| -rw-r--r-- | net/ipv4/igmp.c | 2 | ||||
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 11 |
5 files changed, 16 insertions, 2 deletions
diff --git a/include/linux/in.h b/include/linux/in.h index d60122a..cf196da 100644 --- a/include/linux/in.h +++ b/include/linux/in.h @@ -107,6 +107,7 @@ struct in_addr { #define MCAST_JOIN_SOURCE_GROUP 46 #define MCAST_LEAVE_SOURCE_GROUP 47 #define MCAST_MSFILTER 48 +#define IP_MULTICAST_ALL 49 #define MCAST_EXCLUDE 0 #define MCAST_INCLUDE 1 diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index de0ecc7..20a6957 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -130,7 +130,8 @@ struct inet_sock { freebind:1, hdrincl:1, mc_loop:1, - transparent:1; + transparent:1, + mc_all:1; int mc_index; __be32 mc_addr; struct ip_mc_socklist *mc_list; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 5abee4c..d873621 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -375,6 +375,7 @@ lookup_protocol: inet->uc_ttl = -1; inet->mc_loop = 1; inet->mc_ttl = 1; + inet->mc_all = 1; inet->mc_index = 0; inet->mc_list = NULL; diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 9eb6219..e6058a5 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -2196,7 +2196,7 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif) break; } if (!pmc) - return 1; + return inet->mc_all; psl = pmc->sflist; if (!psl) return pmc->sfmode == MCAST_EXCLUDE; diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 21b0187..cb49936 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -453,6 +453,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) | (1<<IP_PASSSEC) | (1<<IP_TRANSPARENT))) || optname == IP_MULTICAST_TTL || + optname == IP_MULTICAST_ALL || optname == IP_MULTICAST_LOOP || optname == IP_RECVORIGDSTADDR) { if (optlen >= sizeof(int)) { @@ -898,6 +899,13 @@ mc_msf_out: kfree(gsf); break; } + case IP_MULTICAST_ALL: + if (optlen < 1) + goto e_inval; + if (val != 0 && val != 1) + goto e_inval; + inet->mc_all = val; + break; case IP_ROUTER_ALERT: err = ip_ra_control(sk, val ? 1 : 0, NULL); break; @@ -1151,6 +1159,9 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname, release_sock(sk); return err; } + case IP_MULTICAST_ALL: + val = inet->mc_all; + break; case IP_PKTOPTIONS: { struct msghdr msg; |