diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/bind_addr.c | 26 | ||||
| -rw-r--r-- | net/sctp/socket.c | 18 |
2 files changed, 34 insertions, 10 deletions
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c index cae95af9a8c..6a7d01091f0 100644 --- a/net/sctp/bind_addr.c +++ b/net/sctp/bind_addr.c @@ -105,6 +105,32 @@ out: return error; } +/* Exactly duplicate the address lists. This is necessary when doing + * peer-offs and accepts. We don't want to put all the current system + * addresses into the endpoint. That's useless. But we do want duplicat + * the list of bound addresses that the older endpoint used. + */ +int sctp_bind_addr_dup(struct sctp_bind_addr *dest, + const struct sctp_bind_addr *src, + gfp_t gfp) +{ + struct sctp_sockaddr_entry *addr; + struct list_head *pos; + int error = 0; + + /* All addresses share the same port. */ + dest->port = src->port; + + list_for_each(pos, &src->address_list) { + addr = list_entry(pos, struct sctp_sockaddr_entry, list); + error = sctp_add_bind_addr(dest, &addr->a, 1, gfp); + if (error < 0) + break; + } + + return error; +} + /* Initialize the SCTP_bind_addr structure for either an endpoint or * an association. */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index ff8bc95670e..ea9649ca0b2 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -6325,7 +6325,7 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, struct sctp_endpoint *newep = newsp->ep; struct sk_buff *skb, *tmp; struct sctp_ulpevent *event; - int flags = 0; + struct sctp_bind_hashbucket *head; /* Migrate socket buffer sizes and all the socket level options to the * new socket. @@ -6342,23 +6342,21 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk, newsp->hmac = NULL; /* Hook this new socket in to the bind_hash list. */ + head = &sctp_port_hashtable[sctp_phashfn(inet_sk(oldsk)->num)]; + sctp_local_bh_disable(); + sctp_spin_lock(&head->lock); pp = sctp_sk(oldsk)->bind_hash; sk_add_bind_node(newsk, &pp->owner); sctp_sk(newsk)->bind_hash = pp; inet_sk(newsk)->num = inet_sk(oldsk)->num; + sctp_spin_unlock(&head->lock); + sctp_local_bh_enable(); /* Copy the bind_addr list from the original endpoint to the new * endpoint so that we can handle restarts properly */ - if (PF_INET6 == assoc->base.sk->sk_family) - flags = SCTP_ADDR6_ALLOWED; - if (assoc->peer.ipv4_address) - flags |= SCTP_ADDR4_PEERSUPP; - if (assoc->peer.ipv6_address) - flags |= SCTP_ADDR6_PEERSUPP; - sctp_bind_addr_copy(&newsp->ep->base.bind_addr, - &oldsp->ep->base.bind_addr, - SCTP_SCOPE_GLOBAL, GFP_KERNEL, flags); + sctp_bind_addr_dup(&newsp->ep->base.bind_addr, + &oldsp->ep->base.bind_addr, GFP_KERNEL); /* Move any messages in the old socket's receive queue that are for the * peeled off association to the new socket's receive queue. |