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2.6 & 2.4 SCTP updates
Dave, Please do a bk pull http://linux-lksctp.bkbits.net/lksctp-2.5.work & bk pull http://linux-lksctp.bkbits.net/lksctp-2.4.work to get the following SCTP updates to 2.6 and 2.4. Thanks Sridhar # This is a BitKeeper generated diff -Nru style patch. # # ChangeSet # 2004/10/21 15:38:41-07:00 sri@us.ibm.com # [SCTP] Fix HEARTBEAT_ACKs being sent to wrong dest. ip address in a # multi-homing scenario after a failback. # # Signed-off-by: Jorge Hernandez-Herrero <jhh@lucent.com> # Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> # # net/sctp/outqueue.c # # ChangeSet # 2004/10/21 15:32:54-07:00 sri@us.ibm.com # [SCTP] When an address is deleted, update any transports that are caching it as a source adddress. # # Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> # # net/sctp/sm_make_chunk.c # # ChangeSet # 2004/10/21 15:28:41-07:00 sri@us.ibm.com # [SCTP] Update cwnd/ssthresh as per the sctpimpguide modifications. # # Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> # # net/sctp/transport.c # net/sctp/associola.c # # ChangeSet # 2004/10/21 15:21:31-07:00 sri@us.ibm.com # [SCTP] Adaption layer indication support. # # Add support for SCTP_ADAPTION_INDICATION notification, SCTP_ADAPTION_LAYER # socket option and SCTP_PARAM_ADAPTION_LAYER_IND parameter. # # Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> # # net/sctp/ulpevent.c # net/sctp/socket.c # net/sctp/sm_statefuns.c # net/sctp/sm_make_chunk.c # include/net/sctp/ulpevent.h # include/net/sctp/structs.h # include/linux/sctp.h # # ChangeSet # 2004/10/21 15:18:18-07:00 sri@us.ibm.com # [SCTP] Change sctp_assoc_t to a sized type(s32). # # Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> # # net/sctp/socket.c # net/sctp/associola.c # include/net/sctp/user.h # include/net/sctp/sctp.h # diff -Nru a/include/linux/sctp.h b/include/linux/sctp.h --- a/include/linux/sctp.h 2004-10-22 12:06:24 -07:00 +++ b/include/linux/sctp.h 2004-10-22 12:06:24 -07:00 @@ -281,7 +281,11 @@ sctp_paramhdr_t param_hdr; } __attribute__((packed)) sctp_ecn_capable_param_t; - +/* ADDIP Section 3.2.6 Adaption Layer Indication */ +typedef struct sctp_adaption_ind_param { + struct sctp_paramhdr param_hdr; + __u32 adaption_ind; +} __attribute__((packed)) sctp_adaption_ind_param_t; /* RFC 2960. Section 3.3.3 Initiation Acknowledgement (INIT ACK) (2): * The INIT ACK chunk is used to acknowledge the initiation of an SCTP diff -Nru a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h --- a/include/net/sctp/sctp.h 2004-10-22 12:06:24 -07:00 +++ b/include/net/sctp/sctp.h 2004-10-22 12:06:24 -07:00 @@ -335,7 +335,7 @@ /* Map an association to an assoc_id. */ static inline sctp_assoc_t sctp_assoc2id(const struct sctp_association *asoc) { - return (asoc?asoc->assoc_id:NULL); + return (asoc?asoc->assoc_id:0); } /* Look up the association by its id. */ diff -Nru a/include/net/sctp/structs.h b/include/net/sctp/structs.h --- a/include/net/sctp/structs.h 2004-10-22 12:06:24 -07:00 +++ b/include/net/sctp/structs.h 2004-10-22 12:06:24 -07:00 @@ -266,6 +266,7 @@ __u8 disable_fragments; __u8 pd_mode; __u8 v4mapped; + __u32 adaption_ind; /* Receive to here while partial delivery is in effect. */ struct sk_buff_head pd_lobby; @@ -323,6 +324,8 @@ __u8 prsctp_capable; + __u32 adaption_ind; + /* This is a shim for my peer's INIT packet, followed by * a copy of the raw address list of the association. * The length of the raw address list is saved in the @@ -362,6 +365,7 @@ struct sctp_ipv4addr_param *v4; struct sctp_ipv6addr_param *v6; union sctp_addr_param *addr; + struct sctp_adaption_ind_param *aind; }; /* RFC 2960. Section 3.3.5 Heartbeat. @@ -1394,6 +1398,8 @@ __u8 hostname_address;/* Peer understands DNS addresses? */ __u8 asconf_capable; /* Does peer support ADDIP? */ __u8 prsctp_capable; /* Can peer do PR-SCTP? */ + + __u32 adaption_ind; /* Adaption Code point. */ /* This mask is used to disable sending the ASCONF chunk * with specified parameter to peer. diff -Nru a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h --- a/include/net/sctp/ulpevent.h 2004-10-22 12:06:24 -07:00 +++ b/include/net/sctp/ulpevent.h 2004-10-22 12:06:24 -07:00 @@ -121,6 +121,9 @@ const struct sctp_association *asoc, __u32 indication, int gfp); +struct sctp_ulpevent *sctp_ulpevent_make_adaption_indication( + const struct sctp_association *asoc, int gfp); + struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc, struct sctp_chunk *chunk, int gfp); diff -Nru a/include/net/sctp/user.h b/include/net/sctp/user.h --- a/include/net/sctp/user.h 2004-10-22 12:06:24 -07:00 +++ b/include/net/sctp/user.h 2004-10-22 12:06:24 -07:00 @@ -55,7 +55,7 @@ #include <linux/types.h> #include <linux/socket.h> -typedef void * sctp_assoc_t; +typedef __s32 sctp_assoc_t; /* The following symbols come from the Sockets API Extensions for * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. diff -Nru a/net/sctp/associola.c b/net/sctp/associola.c --- a/net/sctp/associola.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/associola.c 2004-10-22 12:06:24 -07:00 @@ -271,7 +271,7 @@ asoc->need_ecne = 0; - asoc->assoc_id = (sctp_assoc_t)-1L; + asoc->assoc_id = 0; /* Assume that peer would support both address types unless we are * told otherwise. @@ -374,9 +374,9 @@ sctp_endpoint_put(asoc->ep); sock_put(asoc->base.sk); - if ((long)asoc->assoc_id != -1L) { + if (asoc->assoc_id != 0) { spin_lock_bh(&sctp_assocs_id_lock); - idr_remove(&sctp_assocs_id, (long)asoc->assoc_id); + idr_remove(&sctp_assocs_id, asoc->assoc_id); spin_unlock_bh(&sctp_assocs_id_lock); } @@ -482,14 +482,15 @@ /* 7.2.1 Slow-Start * - * o The initial cwnd before data transmission or after a - * sufficiently long idle period MUST be <= 2*MTU. + * o The initial cwnd before DATA transmission or after a sufficiently + * long idle period MUST be set to + * min(4*MTU, max(2*MTU, 4380 bytes)) * * o The initial value of ssthresh MAY be arbitrarily high * (for example, implementations MAY use the size of the * receiver advertised window). */ - peer->cwnd = asoc->pmtu * 2; + peer->cwnd = min(4*asoc->pmtu, max_t(__u32, 2*asoc->pmtu, 4380)); /* At this point, we may not have the receiver's advertised window, * so initialize ssthresh to the default value and it will be set diff -Nru a/net/sctp/outqueue.c b/net/sctp/outqueue.c --- a/net/sctp/outqueue.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/outqueue.c 2004-10-22 12:06:24 -07:00 @@ -706,10 +706,19 @@ if (!new_transport) { new_transport = asoc->peer.active_path; } else if (!new_transport->active) { - /* If the chunk is Heartbeat, send it to - * chunk->transport, even it's inactive. + /* If the chunk is Heartbeat or Heartbeat Ack, + * send it to chunk->transport, even if it's + * inactive. + * + * 3.3.6 Heartbeat Acknowledgement: + * ... + * A HEARTBEAT ACK is always sent to the source IP + * address of the IP datagram containing the + * HEARTBEAT chunk to which this ack is responding. + * ... */ - if (chunk->chunk_hdr->type != SCTP_CID_HEARTBEAT) + if (chunk->chunk_hdr->type != SCTP_CID_HEARTBEAT && + chunk->chunk_hdr->type != SCTP_CID_HEARTBEAT_ACK) new_transport = asoc->peer.active_path; } diff -Nru a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c --- a/net/sctp/sm_make_chunk.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/sm_make_chunk.c 2004-10-22 12:06:24 -07:00 @@ -171,6 +171,7 @@ struct sctp_opt *sp; sctp_supported_addrs_param_t sat; __u16 types[2]; + sctp_adaption_ind_param_t aiparam; /* RFC 2960 3.3.2 Initiation (INIT) (1) * @@ -196,6 +197,7 @@ chunksize += sizeof(ecap_param); if (sctp_prsctp_enable) chunksize += sizeof(prsctp_param); + chunksize += sizeof(aiparam); chunksize += vparam_len; /* RFC 2960 3.3.2 Initiation (INIT) (1) @@ -234,6 +236,10 @@ sctp_addto_chunk(retval, sizeof(ecap_param), &ecap_param); if (sctp_prsctp_enable) sctp_addto_chunk(retval, sizeof(prsctp_param), &prsctp_param); + aiparam.param_hdr.type = SCTP_PARAM_ADAPTION_LAYER_IND; + aiparam.param_hdr.length = htons(sizeof(aiparam)); + aiparam.adaption_ind = htonl(sp->adaption_ind); + sctp_addto_chunk(retval, sizeof(aiparam), &aiparam); nodata: if (addrs.v) kfree(addrs.v); @@ -251,6 +257,7 @@ sctp_cookie_param_t *cookie; int cookie_len; size_t chunksize; + sctp_adaption_ind_param_t aiparam; retval = NULL; @@ -284,6 +291,8 @@ if (asoc->peer.prsctp_capable) chunksize += sizeof(prsctp_param); + chunksize += sizeof(aiparam); + /* Now allocate and fill out the chunk. */ retval = sctp_make_chunk(asoc, SCTP_CID_INIT_ACK, 0, chunksize); if (!retval) @@ -302,6 +311,11 @@ if (asoc->peer.prsctp_capable) sctp_addto_chunk(retval, sizeof(prsctp_param), &prsctp_param); + aiparam.param_hdr.type = SCTP_PARAM_ADAPTION_LAYER_IND; + aiparam.param_hdr.length = htons(sizeof(aiparam)); + aiparam.adaption_ind = htonl(sctp_sk(asoc->base.sk)->adaption_ind); + sctp_addto_chunk(retval, sizeof(aiparam), &aiparam); + /* We need to remove the const qualifier at this point. */ retval->asoc = (struct sctp_association *) asoc; @@ -1297,6 +1311,9 @@ /* Remember PR-SCTP capability. */ cookie->c.prsctp_capable = asoc->peer.prsctp_capable; + /* Save adaption indication in the cookie. */ + cookie->c.adaption_ind = asoc->peer.adaption_ind; + /* Set an expiration time for the cookie. */ do_gettimeofday(&cookie->c.expiration); TIMEVAL_ADD(asoc->cookie_life, cookie->c.expiration); @@ -1455,6 +1472,7 @@ retval->addip_serial = retval->c.initial_tsn; retval->adv_peer_ack_point = retval->ctsn_ack_point; retval->peer.prsctp_capable = retval->c.prsctp_capable; + retval->peer.adaption_ind = retval->c.adaption_ind; /* The INIT stuff will be done by the side effects. */ return retval; @@ -1661,6 +1679,7 @@ case SCTP_PARAM_HEARTBEAT_INFO: case SCTP_PARAM_UNRECOGNIZED_PARAMETERS: case SCTP_PARAM_ECN_CAPABLE: + case SCTP_PARAM_ADAPTION_LAYER_IND: break; case SCTP_PARAM_HOST_NAME_ADDRESS: @@ -1989,6 +2008,10 @@ asoc->peer.ecn_capable = 1; break; + case SCTP_PARAM_ADAPTION_LAYER_IND: + asoc->peer.adaption_ind = param.aind->adaption_ind; + break; + case SCTP_PARAM_FWD_TSN_SUPPORT: if (sctp_prsctp_enable) { asoc->peer.prsctp_capable = 1; @@ -2459,6 +2482,8 @@ union sctp_addr addr; struct sctp_bind_addr *bp = &asoc->base.bind_addr; union sctp_addr_param *addr_param; + struct list_head *pos; + struct sctp_transport *transport; int retval = 0; addr_param = (union sctp_addr_param *) @@ -2482,6 +2507,12 @@ retval = sctp_del_bind_addr(bp, &addr); sctp_write_unlock(&asoc->base.addr_lock); sctp_local_bh_enable(); + list_for_each(pos, &asoc->peer.transport_addr_list) { + transport = list_entry(pos, struct sctp_transport, + transports); + sctp_transport_route(transport, NULL, + sctp_sk(asoc->base.sk)); + } break; default: break; diff -Nru a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c --- a/net/sctp/sm_statefuns.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/sm_statefuns.c 2004-10-22 12:06:24 -07:00 @@ -629,6 +629,21 @@ sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); + /* Sockets API Draft Section 5.3.1.6 + * When a peer sends a Adaption Layer Indication parameter , SCTP + * delivers this notification to inform the application that of the + * peers requested adaption layer. + */ + if (new_asoc->peer.adaption_ind) { + ev = sctp_ulpevent_make_adaption_indication(new_asoc, + GFP_ATOMIC); + if (!ev) + goto nomem_ev; + + sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, + SCTP_ULPEVENT(ev)); + } + return SCTP_DISPOSITION_CONSUME; nomem_ev: @@ -713,6 +728,20 @@ sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); + /* Sockets API Draft Section 5.3.1.6 + * When a peer sends a Adaption Layer Indication parameter , SCTP + * delivers this notification to inform the application that of the + * peers requested adaption layer. + */ + if (asoc->peer.adaption_ind) { + ev = sctp_ulpevent_make_adaption_indication(asoc, GFP_ATOMIC); + if (!ev) + goto nomem; + + sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, + SCTP_ULPEVENT(ev)); + } + return SCTP_DISPOSITION_CONSUME; nomem: return SCTP_DISPOSITION_NOMEM; @@ -1532,6 +1561,21 @@ goto nomem_ev; sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); + + /* Sockets API Draft Section 5.3.1.6 + * When a peer sends a Adaption Layer Indication parameter , SCTP + * delivers this notification to inform the application that of the + * peers requested adaption layer. + */ + if (asoc->peer.adaption_ind) { + ev = sctp_ulpevent_make_adaption_indication(asoc, GFP_ATOMIC); + if (!ev) + goto nomem_ev; + + sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, + SCTP_ULPEVENT(ev)); + } + return SCTP_DISPOSITION_CONSUME; nomem_ev: @@ -1612,6 +1656,21 @@ goto nomem; sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, SCTP_ULPEVENT(ev)); + + /* Sockets API Draft Section 5.3.1.6 + * When a peer sends a Adaption Layer Indication parameter, + * SCTP delivers this notification to inform the application + * that of the peers requested adaption layer. + */ + if (new_asoc->peer.adaption_ind) { + ev = sctp_ulpevent_make_adaption_indication(new_asoc, + GFP_ATOMIC); + if (!ev) + goto nomem; + + sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP, + SCTP_ULPEVENT(ev)); + } } sctp_add_cmd_sf(commands, SCTP_CMD_TRANSMIT, SCTP_NULL()); diff -Nru a/net/sctp/socket.c b/net/sctp/socket.c --- a/net/sctp/socket.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/socket.c 2004-10-22 12:06:24 -07:00 @@ -1063,7 +1063,7 @@ struct sctp_sndrcvinfo default_sinfo = { 0 }; struct sctp_sndrcvinfo *sinfo; struct sctp_initmsg *sinit; - sctp_assoc_t associd = NULL; + sctp_assoc_t associd = 0; sctp_cmsgs_t cmsgs = { NULL }; int err; sctp_scope_t scope; @@ -2120,6 +2120,20 @@ return err; } +static int sctp_setsockopt_adaption_layer(struct sock *sk, char __user *optval, + int optlen) +{ + __u32 val; + + if (optlen < sizeof(__u32)) + return -EINVAL; + if (copy_from_user(&val, optval, sizeof(__u32))) + return -EFAULT; + + sctp_sk(sk)->adaption_ind = val; + + return 0; +} /* API 6.2 setsockopt(), getsockopt() * @@ -2219,6 +2233,10 @@ case SCTP_MAXSEG: retval = sctp_setsockopt_maxseg(sk, optval, optlen); break; + case SCTP_ADAPTION_LAYER: + retval = sctp_setsockopt_adaption_layer(sk, optval, optlen); + break; + default: retval = -ENOPROTOOPT; break; @@ -2518,6 +2536,8 @@ /* User specified fragmentation limit. */ sp->user_frag = 0; + sp->adaption_ind = 0; + sp->pf = sctp_get_pf_specific(sk->sk_family); /* Control variables for partial data delivery. */ @@ -3160,6 +3180,29 @@ } /* + * 7.1.11 Set Adaption Layer Indicator (SCTP_ADAPTION_LAYER) + * + * Requests that the local endpoint set the specified Adaption Layer + * Indication parameter for all future INIT and INIT-ACK exchanges. + */ +static int sctp_getsockopt_adaption_layer(struct sock *sk, int len, + char __user *optval, int __user *optlen) +{ + __u32 val; + + if (len < sizeof(__u32)) + return -EINVAL; + + len = sizeof(__u32); + val = sctp_sk(sk)->adaption_ind; + if (put_user(len, optlen)) + return -EFAULT; + if (copy_to_user(optval, &val, len)) + return -EFAULT; + return 0; +} + +/* * * 7.1.14 Set default send parameters (SCTP_DEFAULT_SEND_PARAM) * @@ -3513,6 +3556,10 @@ break; case SCTP_GET_PEER_ADDR_INFO: retval = sctp_getsockopt_peer_addr_info(sk, len, optval, + optlen); + break; + case SCTP_ADAPTION_LAYER: + retval = sctp_getsockopt_adaption_layer(sk, len, optval, optlen); break; default: diff -Nru a/net/sctp/transport.c b/net/sctp/transport.c --- a/net/sctp/transport.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/transport.c 2004-10-22 12:06:24 -07:00 @@ -421,15 +421,15 @@ { switch (reason) { case SCTP_LOWER_CWND_T3_RTX: - /* RFC 2960 Section 7.2.3, sctpimpguide-05 Section 2.9.2 + /* RFC 2960 Section 7.2.3, sctpimpguide * When the T3-rtx timer expires on an address, SCTP should * perform slow start by: - * ssthresh = max(cwnd/2, 2*MTU) + * ssthresh = max(cwnd/2, 4*MTU) * cwnd = 1*MTU * partial_bytes_acked = 0 */ transport->ssthresh = max(transport->cwnd/2, - 2*transport->asoc->pmtu); + 4*transport->asoc->pmtu); transport->cwnd = transport->asoc->pmtu; break; @@ -439,15 +439,15 @@ * were last sent, according to the formula described in * Section 7.2.3. * - * RFC 2960 7.2.3, sctpimpguide-05 2.9.2 Upon detection of - * packet losses from SACK (see Section 7.2.4), An endpoint + * RFC 2960 7.2.3, sctpimpguide Upon detection of packet + * losses from SACK (see Section 7.2.4), An endpoint * should do the following: - * ssthresh = max(cwnd/2, 2*MTU) + * ssthresh = max(cwnd/2, 4*MTU) * cwnd = ssthresh * partial_bytes_acked = 0 */ transport->ssthresh = max(transport->cwnd/2, - 2*transport->asoc->pmtu); + 4*transport->asoc->pmtu); transport->cwnd = transport->ssthresh; break; @@ -467,23 +467,24 @@ if ((jiffies - transport->last_time_ecne_reduced) > transport->rtt) { transport->ssthresh = max(transport->cwnd/2, - 2*transport->asoc->pmtu); + 4*transport->asoc->pmtu); transport->cwnd = transport->ssthresh; transport->last_time_ecne_reduced = jiffies; } break; case SCTP_LOWER_CWND_INACTIVE: - /* RFC 2960 Section 7.2.1, sctpimpguide-05 Section 2.14.2 - * When the association does not transmit data on a given - * transport address within an RTO, the cwnd of the transport - * address should be adjusted to 2*MTU. + /* RFC 2960 Section 7.2.1, sctpimpguide + * When the endpoint does not transmit data on a given + * transport address, the cwnd of the transport address + * should be adjusted to max(cwnd/2, 4*MTU) per RTO. * NOTE: Although the draft recommends that this check needs * to be done every RTO interval, we do it every hearbeat * interval. */ if ((jiffies - transport->last_time_used) > transport->rto) - transport->cwnd = 2*transport->asoc->pmtu; + transport->cwnd = max(transport->cwnd/2, + 4*transport->asoc->pmtu); break; }; diff -Nru a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c --- a/net/sctp/ulpevent.c 2004-10-22 12:06:24 -07:00 +++ b/net/sctp/ulpevent.c 2004-10-22 12:06:24 -07:00 @@ -562,7 +562,7 @@ struct sctp_shutdown_event *sse; struct sk_buff *skb; - event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change), + event = sctp_ulpevent_new(sizeof(struct sctp_shutdown_event), MSG_NOTIFICATION, gfp); if (!event) goto fail; @@ -613,6 +613,40 @@ return NULL; } +/* Create and initialize a SCTP_ADAPTION_INDICATION notification. + * + * Socket Extensions for SCTP + * 5.3.1.6 SCTP_ADAPTION_INDICATION + */ +struct sctp_ulpevent *sctp_ulpevent_make_adaption_indication( + const struct sctp_association *asoc, int gfp) +{ + struct sctp_ulpevent *event; + struct sctp_adaption_event *sai; + struct sk_buff *skb; + + event = sctp_ulpevent_new(sizeof(struct sctp_adaption_event), + MSG_NOTIFICATION, gfp); + if (!event) + goto fail; + + skb = sctp_event2skb(event); + sai = (struct sctp_adaption_event *) + skb_put(skb, sizeof(struct sctp_adaption_event)); + + sai->sai_type = SCTP_ADAPTION_INDICATION; + sai->sai_flags = 0; + sai->sai_length = sizeof(struct sctp_adaption_event); + sai->sai_adaption_ind = asoc->peer.adaption_ind; + sctp_ulpevent_set_owner(event, asoc); + sai->sai_assoc_id = sctp_assoc2id(asoc); + + return event; + +fail: + return NULL; +} + /* A message has been received. Package this message as a notification * to pass it to the upper layers. Go ahead and calculate the sndrcvinfo * even if filtered out later. @@ -689,7 +723,7 @@ struct sctp_pdapi_event *pd; struct sk_buff *skb; - event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change), + event = sctp_ulpevent_new(sizeof(struct sctp_pdapi_event), MSG_NOTIFICATION, gfp); if (!event) goto fail; |
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