goto drop;
switch (skb->ip_summed) {
- case CHECKSUM_HW:
+ case CHECKSUM_COMPLETE:
if (!(u16)csum_fold(skb->csum))
break;
/* fall through */
/*
* Join a socket to a group
*/
-int sysctl_igmp_max_memberships = IP_MAX_MEMBERSHIPS;
-int sysctl_igmp_max_msf = IP_MAX_MSF;
+int sysctl_igmp_max_memberships __read_mostly = IP_MAX_MEMBERSHIPS;
+int sysctl_igmp_max_msf __read_mostly = IP_MAX_MSF;
static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
struct in_device *in_dev;
u32 group = imr->imr_multiaddr.s_addr;
u32 ifindex;
+ int ret = -EADDRNOTAVAIL;
rtnl_lock();
in_dev = ip_mc_find_dev(imr);
- if (!in_dev) {
- rtnl_unlock();
- return -ENODEV;
- }
ifindex = imr->imr_ifindex;
for (imlp = &inet->mc_list; (iml = *imlp) != NULL; imlp = &iml->next) {
- if (iml->multi.imr_multiaddr.s_addr == group &&
- iml->multi.imr_ifindex == ifindex) {
- (void) ip_mc_leave_src(sk, iml, in_dev);
+ if (iml->multi.imr_multiaddr.s_addr != group)
+ continue;
+ if (ifindex) {
+ if (iml->multi.imr_ifindex != ifindex)
+ continue;
+ } else if (imr->imr_address.s_addr && imr->imr_address.s_addr !=
+ iml->multi.imr_address.s_addr)
+ continue;
+
+ (void) ip_mc_leave_src(sk, iml, in_dev);
- *imlp = iml->next;
+ *imlp = iml->next;
+ if (in_dev)
ip_mc_dec_group(in_dev, group);
- rtnl_unlock();
- sock_kfree_s(sk, iml, sizeof(*iml));
- return 0;
- }
+ rtnl_unlock();
+ sock_kfree_s(sk, iml, sizeof(*iml));
+ return 0;
}
+ if (!in_dev)
+ ret = -ENODEV;
rtnl_unlock();
- return -EADDRNOTAVAIL;
+ return ret;
}
int ip_mc_source(int add, int omode, struct sock *sk, struct
struct in_device *in_dev;
inet->mc_list = iml->next;
- if ((in_dev = inetdev_by_index(iml->multi.imr_ifindex)) != NULL) {
- (void) ip_mc_leave_src(sk, iml, in_dev);
+ in_dev = inetdev_by_index(iml->multi.imr_ifindex);
+ (void) ip_mc_leave_src(sk, iml, in_dev);
+ if (in_dev != NULL) {
ip_mc_dec_group(in_dev, iml->multi.imr_multiaddr.s_addr);
in_dev_put(in_dev);
}
sock_kfree_s(sk, iml, sizeof(*iml));
-
}
rtnl_unlock();
}