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authorDavid L Stevens <dlstevens@us.ibm.com>2005-07-08 17:47:28 -0700
committerDavid S. Miller <davem@davemloft.net>2005-07-08 17:47:28 -0700
commit9951f036fe8a4e6b21962559c64ff13b290ff01a (patch)
tree3d4d557102bf8d8a96d5276de7183b57c9808711 /net/ipv6/mcast.c
parent917f2f105ea4bbba8604e3ed55233eebda7afe6a (diff)
downloadlinux-9951f036fe8a4e6b21962559c64ff13b290ff01a.tar.bz2
[IPV4]: (INCLUDE,empty)/leave-group equivalence for full-state MSF APIs & errno fix
1) Adds (INCLUDE, empty)/leave-group equivalence to the full-state multicast source filter APIs (IPv4 and IPv6) 2) Fixes an incorrect errno in the IPv6 leave-group (ENOENT should be EADDRNOTAVAIL) Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/mcast.c')
-rw-r--r--net/ipv6/mcast.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 9db4581d0d79..398c982625f8 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -281,7 +281,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
}
write_unlock_bh(&ipv6_sk_mc_lock);
- return -ENOENT;
+ return -EADDRNOTAVAIL;
}
static struct inet6_dev *ip6_mc_find_dev(struct in6_addr *group, int ifindex)
@@ -492,6 +492,7 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
struct inet6_dev *idev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
struct ip6_sf_socklist *newpsl, *psl;
+ int leavegroup = 0;
int i, err;
group = &((struct sockaddr_in6 *)&gsf->gf_group)->sin6_addr;
@@ -508,6 +509,11 @@ int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
return -ENODEV;
dev = idev->dev;
+ if (gsf->gf_fmode == MCAST_INCLUDE && gsf->gf_numsrc == 0) {
+ leavegroup = 1;
+ goto done;
+ }
+
for (pmc=inet6->ipv6_mc_list; pmc; pmc=pmc->next) {
if (pmc->ifindex != gsf->gf_interface)
continue;
@@ -554,6 +560,8 @@ done:
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
dev_put(dev);
+ if (leavegroup)
+ err = ipv6_sock_mc_drop(sk, gsf->gf_interface, group);
return err;
}