]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - net/sctp/socket.c
[IrDA]: Memory allocations cleanups
[linux-2.6-omap-h63xx.git] / net / sctp / socket.c
index 0a2c71d0d8aad858eb3408591c1af594d1d51587..79c3e072cf282027f3988c17d90bbc2c6c2143b8 100644 (file)
@@ -369,7 +369,7 @@ SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 
        /* Use GFP_ATOMIC since BHs are disabled.  */
        addr->v4.sin_port = ntohs(addr->v4.sin_port);
-       ret = sctp_add_bind_addr(bp, addr, GFP_ATOMIC);
+       ret = sctp_add_bind_addr(bp, addr, 1, GFP_ATOMIC);
        addr->v4.sin_port = htons(addr->v4.sin_port);
        sctp_write_unlock(&ep->base.addr_lock);
        sctp_local_bh_enable();
@@ -491,6 +491,7 @@ static int sctp_send_asconf_add_ip(struct sock              *sk,
        struct sctp_chunk               *chunk;
        struct sctp_sockaddr_entry      *laddr;
        union sctp_addr                 *addr;
+       union sctp_addr                 saveaddr;
        void                            *addr_buf;
        struct sctp_af                  *af;
        struct list_head                *pos;
@@ -558,14 +559,26 @@ static int sctp_send_asconf_add_ip(struct sock            *sk,
                }
 
                retval = sctp_send_asconf(asoc, chunk);
+               if (retval)
+                       goto out;
 
-               /* FIXME: After sending the add address ASCONF chunk, we
-                * cannot append the address to the association's binding
-                * address list, because the new address may be used as the
-                * source of a message sent to the peer before the ASCONF
-                * chunk is received by the peer.  So we should wait until
-                * ASCONF_ACK is received.
+               /* Add the new addresses to the bind address list with
+                * use_as_src set to 0.
                 */
+               sctp_local_bh_disable();
+               sctp_write_lock(&asoc->base.addr_lock);
+               addr_buf = addrs;
+               for (i = 0; i < addrcnt; i++) {
+                       addr = (union sctp_addr *)addr_buf;
+                       af = sctp_get_af_specific(addr->v4.sin_family);
+                       memcpy(&saveaddr, addr, af->sockaddr_len);
+                       saveaddr.v4.sin_port = ntohs(saveaddr.v4.sin_port);
+                       retval = sctp_add_bind_addr(bp, &saveaddr, 0,
+                                                   GFP_ATOMIC);
+                       addr_buf += af->sockaddr_len;
+               }
+               sctp_write_unlock(&asoc->base.addr_lock);
+               sctp_local_bh_enable();
        }
 
 out:
@@ -676,12 +689,15 @@ static int sctp_send_asconf_del_ip(struct sock            *sk,
        struct sctp_sock        *sp;
        struct sctp_endpoint    *ep;
        struct sctp_association *asoc;
+       struct sctp_transport   *transport;
        struct sctp_bind_addr   *bp;
        struct sctp_chunk       *chunk;
        union sctp_addr         *laddr;
+       union sctp_addr         saveaddr;
        void                    *addr_buf;
        struct sctp_af          *af;
-       struct list_head        *pos;
+       struct list_head        *pos, *pos1;
+       struct sctp_sockaddr_entry *saddr;
        int                     i;
        int                     retval = 0;
 
@@ -748,14 +764,42 @@ static int sctp_send_asconf_del_ip(struct sock            *sk,
                        goto out;
                }
 
-               retval = sctp_send_asconf(asoc, chunk);
+               /* Reset use_as_src flag for the addresses in the bind address
+                * list that are to be deleted.
+                */
+               sctp_local_bh_disable();
+               sctp_write_lock(&asoc->base.addr_lock);
+               addr_buf = addrs;
+               for (i = 0; i < addrcnt; i++) {
+                       laddr = (union sctp_addr *)addr_buf;
+                       af = sctp_get_af_specific(laddr->v4.sin_family);
+                       memcpy(&saveaddr, laddr, af->sockaddr_len);
+                       saveaddr.v4.sin_port = ntohs(saveaddr.v4.sin_port);
+                       list_for_each(pos1, &bp->address_list) {
+                               saddr = list_entry(pos1,
+                                                  struct sctp_sockaddr_entry,
+                                                  list);
+                               if (sctp_cmp_addr_exact(&saddr->a, &saveaddr))
+                                       saddr->use_as_src = 0;
+                       }
+                       addr_buf += af->sockaddr_len;
+               }
+               sctp_write_unlock(&asoc->base.addr_lock);
+               sctp_local_bh_enable();
 
-               /* FIXME: After sending the delete address ASCONF chunk, we
-                * cannot remove the addresses from the association's bind
-                * address list, because there maybe some packet send to
-                * the delete addresses, so we should wait until ASCONF_ACK
-                * packet is received.
+               /* Update the route and saddr entries for all the transports
+                * as some of the addresses in the bind address list are
+                * about to be deleted and cannot be used as source addresses.
                 */
+               list_for_each(pos1, &asoc->peer.transport_addr_list) {
+                       transport = list_entry(pos1, struct sctp_transport,
+                                              transports);
+                       dst_release(transport->dst);
+                       sctp_transport_route(transport, NULL,
+                                            sctp_sk(asoc->base.sk));
+               }
+
+               retval = sctp_send_asconf(asoc, chunk);
        }
 out:
        return retval;
@@ -1245,9 +1289,13 @@ SCTP_STATIC void sctp_close(struct sock *sk, long timeout)
                        }
                }
 
-               if (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime)
-                       sctp_primitive_ABORT(asoc, NULL);
-               else
+               if (sock_flag(sk, SOCK_LINGER) && !sk->sk_lingertime) {
+                       struct sctp_chunk *chunk;
+
+                       chunk = sctp_make_abort_user(asoc, NULL, 0);
+                       if (chunk)
+                               sctp_primitive_ABORT(asoc, chunk);
+               } else
                        sctp_primitive_SHUTDOWN(asoc, NULL);
        }
 
@@ -1476,8 +1524,16 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
                        goto out_unlock;
                }
                if (sinfo_flags & SCTP_ABORT) {
+                       struct sctp_chunk *chunk;
+
+                       chunk = sctp_make_abort_user(asoc, msg, msg_len);
+                       if (!chunk) {
+                               err = -ENOMEM;
+                               goto out_unlock;
+                       }
+
                        SCTP_DEBUG_PRINTK("Aborting association: %p\n", asoc);
-                       sctp_primitive_ABORT(asoc, msg);
+                       sctp_primitive_ABORT(asoc, chunk);
                        err = 0;
                        goto out_unlock;
                }
@@ -2025,13 +2081,13 @@ static int sctp_setsockopt_autoclose(struct sock *sk, char __user *optval,
  *                     SPP_SACKDELAY_ENABLE, setting both will have undefined
  *                     results.
  */
-int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
-                               struct sctp_transport   *trans,
-                               struct sctp_association *asoc,
-                               struct sctp_sock        *sp,
-                               int                      hb_change,
-                               int                      pmtud_change,
-                               int                      sackdelay_change)
+static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
+                                      struct sctp_transport   *trans,
+                                      struct sctp_association *asoc,
+                                      struct sctp_sock        *sp,
+                                      int                      hb_change,
+                                      int                      pmtud_change,
+                                      int                      sackdelay_change)
 {
        int error;
 
@@ -2914,7 +2970,7 @@ SCTP_STATIC struct sock *sctp_accept(struct sock *sk, int flags, int *err)
                goto out;
        }
 
-       timeo = sock_rcvtimeo(sk, sk->sk_socket->file->f_flags & O_NONBLOCK);
+       timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
 
        error = sctp_wait_for_accept(sk, timeo);
        if (error)
@@ -2989,14 +3045,14 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
        sp->initmsg.sinit_num_ostreams   = sctp_max_outstreams;
        sp->initmsg.sinit_max_instreams  = sctp_max_instreams;
        sp->initmsg.sinit_max_attempts   = sctp_max_retrans_init;
-       sp->initmsg.sinit_max_init_timeo = jiffies_to_msecs(sctp_rto_max);
+       sp->initmsg.sinit_max_init_timeo = sctp_rto_max;
 
        /* Initialize default RTO related parameters.  These parameters can
         * be modified for with the SCTP_RTOINFO socket option.
         */
-       sp->rtoinfo.srto_initial = jiffies_to_msecs(sctp_rto_initial);
-       sp->rtoinfo.srto_max     = jiffies_to_msecs(sctp_rto_max);
-       sp->rtoinfo.srto_min     = jiffies_to_msecs(sctp_rto_min);
+       sp->rtoinfo.srto_initial = sctp_rto_initial;
+       sp->rtoinfo.srto_max     = sctp_rto_max;
+       sp->rtoinfo.srto_min     = sctp_rto_min;
 
        /* Initialize default association related parameters. These parameters
         * can be modified with the SCTP_ASSOCINFO socket option.
@@ -3005,8 +3061,7 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
        sp->assocparams.sasoc_number_peer_destinations = 0;
        sp->assocparams.sasoc_peer_rwnd = 0;
        sp->assocparams.sasoc_local_rwnd = 0;
-       sp->assocparams.sasoc_cookie_life = 
-               jiffies_to_msecs(sctp_valid_cookie_life);
+       sp->assocparams.sasoc_cookie_life = sctp_valid_cookie_life;
 
        /* Initialize default event subscriptions. By default, all the
         * options are off. 
@@ -3016,10 +3071,10 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
        /* Default Peer Address Parameters.  These defaults can
         * be modified via SCTP_PEER_ADDR_PARAMS
         */
-       sp->hbinterval  = jiffies_to_msecs(sctp_hb_interval);
+       sp->hbinterval  = sctp_hb_interval;
        sp->pathmaxrxt  = sctp_max_retrans_path;
        sp->pathmtu     = 0; // allow default discovery
-       sp->sackdelay   = jiffies_to_msecs(sctp_sack_timeout);
+       sp->sackdelay   = sctp_sack_timeout;
        sp->param_flags = SPP_HB_ENABLE |
                          SPP_PMTUD_ENABLE |
                          SPP_SACKDELAY_ENABLE;
@@ -4842,7 +4897,7 @@ SCTP_STATIC int sctp_stream_listen(struct sock *sk, int backlog)
 int sctp_inet_listen(struct socket *sock, int backlog)
 {
        struct sock *sk = sock->sk;
-       struct crypto_tfm *tfm=NULL;
+       struct crypto_hash *tfm = NULL;
        int err = -EINVAL;
 
        if (unlikely(backlog < 0))
@@ -4855,7 +4910,7 @@ int sctp_inet_listen(struct socket *sock, int backlog)
 
        /* Allocate HMAC for generating cookie. */
        if (sctp_hmac_alg) {
-               tfm = sctp_crypto_alloc_tfm(sctp_hmac_alg, 0);
+               tfm = crypto_alloc_hash(sctp_hmac_alg, 0, CRYPTO_ALG_ASYNC);
                if (!tfm) {
                        err = -ENOSYS;
                        goto out;
@@ -4881,7 +4936,7 @@ out:
        sctp_release_sock(sk);
        return err;
 cleanup:
-       sctp_crypto_free_tfm(tfm);
+       crypto_free_hash(tfm);
        goto out;
 }
 
@@ -4977,7 +5032,7 @@ static struct sctp_bind_bucket *sctp_bucket_create(
 /* Caller must hold hashbucket lock for this tb with local BH disabled */
 static void sctp_bucket_destroy(struct sctp_bind_bucket *pp)
 {
-       if (hlist_empty(&pp->owner)) {
+       if (pp && hlist_empty(&pp->owner)) {
                if (pp->next)
                        pp->next->pprev = pp->pprev;
                *(pp->pprev) = pp->next;
@@ -5563,6 +5618,8 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
        /* 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)