sctp: Push struct net down into all of the state machine functions

There are a handle of state machine functions primarily those dealing
with processing INIT packets where there is neither a valid endpoint nor
a valid assoication from which to derive a struct net.  Therefore add
struct net * to the parameter list of sctp_state_fn_t and update all of
the state machine functions.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 338 insertions, 281 deletions

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index ff2530c848b..19f3bff8419 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -66,7 +66,8 @@
 #include <net/sctp/sm.h>
 #include <net/sctp/structs.h>
 
-static struct sctp_packet *sctp_abort_pkt_new(const struct sctp_endpoint *ep,
+static struct sctp_packet *sctp_abort_pkt_new(struct net *net,
+				  const struct sctp_endpoint *ep,
 				  const struct sctp_association *asoc,
 				  struct sctp_chunk *chunk,
 				  const void *payload,
@@ -77,34 +78,40 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 static struct sctp_packet *sctp_ootb_pkt_new(struct net *net,
 					     const struct sctp_association *asoc,
 					     const struct sctp_chunk *chunk);
-static void sctp_send_stale_cookie_err(const struct sctp_endpoint *ep,
+static void sctp_send_stale_cookie_err(struct net *net,
+				       const struct sctp_endpoint *ep,
 				       const struct sctp_association *asoc,
 				       const struct sctp_chunk *chunk,
 				       sctp_cmd_seq_t *commands,
 				       struct sctp_chunk *err_chunk);
-static sctp_disposition_t sctp_sf_do_5_2_6_stale(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_5_2_6_stale(struct net *net,
+						 const struct sctp_endpoint *ep,
 						 const struct sctp_association *asoc,
 						 const sctp_subtype_t type,
 						 void *arg,
 						 sctp_cmd_seq_t *commands);
-static sctp_disposition_t sctp_sf_shut_8_4_5(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_shut_8_4_5(struct net *net,
+					     const struct sctp_endpoint *ep,
 					     const struct sctp_association *asoc,
 					     const sctp_subtype_t type,
 					     void *arg,
 					     sctp_cmd_seq_t *commands);
-static sctp_disposition_t sctp_sf_tabort_8_4_8(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_tabort_8_4_8(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
 					sctp_cmd_seq_t *commands);
 static struct sctp_sackhdr *sctp_sm_pull_sack(struct sctp_chunk *chunk);
 
-static sctp_disposition_t sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
+static sctp_disposition_t sctp_stop_t1_and_abort(struct net *net,
+					   sctp_cmd_seq_t *commands,
 					   __be16 error, int sk_err,
 					   const struct sctp_association *asoc,
 					   struct sctp_transport *transport);
 
 static sctp_disposition_t sctp_sf_abort_violation(
+				     struct net *net,
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     void *arg,
@@ -113,6 +120,7 @@ static sctp_disposition_t sctp_sf_abort_violation(
 				     const size_t paylen);
 
 static sctp_disposition_t sctp_sf_violation_chunklen(
+				     struct net *net,
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
@@ -120,6 +128,7 @@ static sctp_disposition_t sctp_sf_violation_chunklen(
 				     sctp_cmd_seq_t *commands);
 
 static sctp_disposition_t sctp_sf_violation_paramlen(
+				     struct net *net,
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
@@ -127,6 +136,7 @@ static sctp_disposition_t sctp_sf_violation_paramlen(
 				     sctp_cmd_seq_t *commands);
 
 static sctp_disposition_t sctp_sf_violation_ctsn(
+				     struct net *net,
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
@@ -134,18 +144,21 @@ static sctp_disposition_t sctp_sf_violation_ctsn(
 				     sctp_cmd_seq_t *commands);
 
 static sctp_disposition_t sctp_sf_violation_chunk(
+				     struct net *net,
 				     const struct sctp_endpoint *ep,
 				     const struct sctp_association *asoc,
 				     const sctp_subtype_t type,
 				     void *arg,
 				     sctp_cmd_seq_t *commands);
 
-static sctp_ierror_t sctp_sf_authenticate(const struct sctp_endpoint *ep,
+static sctp_ierror_t sctp_sf_authenticate(struct net *net,
+				    const struct sctp_endpoint *ep,
 				    const struct sctp_association *asoc,
 				    const sctp_subtype_t type,
 				    struct sctp_chunk *chunk);
 
-static sctp_disposition_t __sctp_sf_do_9_1_abort(const struct sctp_endpoint *ep,
+static sctp_disposition_t __sctp_sf_do_9_1_abort(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -205,7 +218,8 @@ sctp_chunk_length_valid(struct sctp_chunk *chunk,
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_4_C(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_4_C(struct net *net,
+				  const struct sctp_endpoint *ep,
 				  const struct sctp_association *asoc,
 				  const sctp_subtype_t type,
 				  void *arg,
@@ -213,10 +227,9 @@ sctp_disposition_t sctp_sf_do_4_C(const struct sctp_endpoint *ep,
 {
 	struct sctp_chunk *chunk = arg;
 	struct sctp_ulpevent *ev;
-	struct net *net;
 
 	if (!sctp_vtag_verify_either(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* RFC 2960 6.10 Bundling
 	 *
@@ -224,11 +237,11 @@ sctp_disposition_t sctp_sf_do_4_C(const struct sctp_endpoint *ep,
 	 * SHUTDOWN COMPLETE with any other chunks.
 	 */
 	if (!chunk->singleton)
-		return sctp_sf_violation_chunk(ep, asoc, type, arg, commands);
+		return sctp_sf_violation_chunk(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the SHUTDOWN_COMPLETE chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	/* RFC 2960 10.2 SCTP-to-ULP
@@ -261,7 +274,6 @@ sctp_disposition_t sctp_sf_do_4_C(const struct sctp_endpoint *ep,
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_CLOSED));
 
-	net = sock_net(asoc->base.sk);
 	SCTP_INC_STATS(net, SCTP_MIB_SHUTDOWNS);
 	SCTP_DEC_STATS(net, SCTP_MIB_CURRESTAB);
 
@@ -292,7 +304,8 @@ sctp_disposition_t sctp_sf_do_4_C(const struct sctp_endpoint *ep,
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_1B_init(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -304,7 +317,6 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 	struct sctp_chunk *err_chunk;
 	struct sctp_packet *packet;
 	sctp_unrecognized_param_t *unk_param;
-	struct net *net;
 	int len;
 
 	/* 6.10 Bundling
@@ -317,22 +329,21 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 	 * with an INIT chunk that is bundled with other chunks.
 	 */
 	if (!chunk->singleton)
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
-	net = sock_net(ep->base.sk);
 	if (ep == sctp_sk(net->sctp.ctl_sock)->ep) {
 		SCTP_INC_STATS(net, SCTP_MIB_OUTOFBLUES);
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 	}
 
 	/* 3.1 A packet containing an INIT chunk MUST have a zero Verification
 	 * Tag.
 	 */
 	if (chunk->sctp_hdr->vtag != 0)
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the INIT chunk has a valid length.
 	 * Normally, this would cause an ABORT with a Protocol Violation
@@ -340,7 +351,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 	 * just discard the packet.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_init_chunk_t)))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* If the INIT is coming toward a closing socket, we'll send back
 	 * and ABORT.  Essentially, this catches the race of INIT being
@@ -349,7 +360,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 	 * can treat this OOTB
 	 */
 	if (sctp_sstate(ep->base.sk, CLOSING))
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
 	/* Verify the INIT chunk before processing it. */
 	err_chunk = NULL;
@@ -360,7 +371,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 		 * Send an ABORT, with causes if there is any.
 		 */
 		if (err_chunk) {
-			packet = sctp_abort_pkt_new(ep, asoc, arg,
+			packet = sctp_abort_pkt_new(net, ep, asoc, arg,
 					(__u8 *)(err_chunk->chunk_hdr) +
 					sizeof(sctp_chunkhdr_t),
 					ntohs(err_chunk->chunk_hdr->length) -
@@ -377,7 +388,7 @@ sctp_disposition_t sctp_sf_do_5_1B_init(const struct sctp_endpoint *ep,
 				return SCTP_DISPOSITION_NOMEM;
 			}
 		} else {
-			return sctp_sf_tabort_8_4_8(ep, asoc, type, arg,
+			return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg,
 						    commands);
 		}
 	}
@@ -489,7 +500,8 @@ nomem:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_1C_ack(struct net *net,
+				       const struct sctp_endpoint *ep,
 				       const struct sctp_association *asoc,
 				       const sctp_subtype_t type,
 				       void *arg,
@@ -501,18 +513,18 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
 	struct sctp_packet *packet;
 
 	if (!sctp_vtag_verify(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* 6.10 Bundling
 	 * An endpoint MUST NOT bundle INIT, INIT ACK or
 	 * SHUTDOWN COMPLETE with any other chunks.
 	 */
 	if (!chunk->singleton)
-		return sctp_sf_violation_chunk(ep, asoc, type, arg, commands);
+		return sctp_sf_violation_chunk(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the INIT-ACK chunk has a valid length */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_initack_chunk_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 	/* Grab the INIT header.  */
 	chunk->subh.init_hdr = (sctp_inithdr_t *) chunk->skb->data;
@@ -531,7 +543,7 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
 		 * the association.
 		 */
 		if (err_chunk) {
-			packet = sctp_abort_pkt_new(ep, asoc, arg,
+			packet = sctp_abort_pkt_new(net, ep, asoc, arg,
 					(__u8 *)(err_chunk->chunk_hdr) +
 					sizeof(sctp_chunkhdr_t),
 					ntohs(err_chunk->chunk_hdr->length) -
@@ -542,7 +554,7 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
 			if (packet) {
 				sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
 						SCTP_PACKET(packet));
-				SCTP_INC_STATS(sock_net(ep->base.sk), SCTP_MIB_OUTCTRLCHUNKS);
+				SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 				error = SCTP_ERROR_INV_PARAM;
 			}
 		}
@@ -559,10 +571,10 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
 		 * was malformed.
 		 */
 		if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
-		SCTP_INC_STATS(sock_net(ep->base.sk), SCTP_MIB_ABORTEDS);
-		return sctp_stop_t1_and_abort(commands, error, ECONNREFUSED,
+		SCTP_INC_STATS(net, SCTP_MIB_ABORTEDS);
+		return sctp_stop_t1_and_abort(net, commands, error, ECONNREFUSED,
 						asoc, chunk->transport);
 	}
 
@@ -638,7 +650,8 @@ sctp_disposition_t sctp_sf_do_5_1C_ack(const struct sctp_endpoint *ep,
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_1D_ce(struct net *net,
+				      const struct sctp_endpoint *ep,
 				      const struct sctp_association *asoc,
 				      const sctp_subtype_t type, void *arg,
 				      sctp_cmd_seq_t *commands)
@@ -651,15 +664,13 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
 	int error = 0;
 	struct sctp_chunk *err_chk_p;
 	struct sock *sk;
-	struct net *net;
 
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
-	net = sock_net(ep->base.sk);
 	if (ep == sctp_sk(net->sctp.ctl_sock)->ep) {
 		SCTP_INC_STATS(net, SCTP_MIB_OUTOFBLUES);
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 	}
 
 	/* Make sure that the COOKIE_ECHO chunk has a valid length.
@@ -668,7 +679,7 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
 	 * in sctp_unpack_cookie().
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* If the endpoint is not listening or if the number of associations
 	 * on the TCP-style socket exceed the max backlog, respond with an
@@ -677,7 +688,7 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
 	sk = ep->base.sk;
 	if (!sctp_sstate(sk, LISTENING) ||
 	    (sctp_style(sk, TCP) && sk_acceptq_is_full(sk)))
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
 	/* "Decode" the chunk.  We have no optional parameters so we
 	 * are in good shape.
@@ -710,13 +721,13 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
 			goto nomem;
 
 		case -SCTP_IERROR_STALE_COOKIE:
-			sctp_send_stale_cookie_err(ep, asoc, chunk, commands,
+			sctp_send_stale_cookie_err(net, ep, asoc, chunk, commands,
 						   err_chk_p);
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 		case -SCTP_IERROR_BAD_SIG:
 		default:
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 		}
 	}
 
@@ -763,14 +774,14 @@ sctp_disposition_t sctp_sf_do_5_1D_ce(const struct sctp_endpoint *ep,
 		skb_pull(chunk->auth_chunk, sizeof(sctp_chunkhdr_t));
 		auth.transport = chunk->transport;
 
-		ret = sctp_sf_authenticate(ep, new_asoc, type, &auth);
+		ret = sctp_sf_authenticate(net, ep, new_asoc, type, &auth);
 
 		/* We can now safely free the auth_chunk clone */
 		kfree_skb(chunk->auth_chunk);
 
 		if (ret != SCTP_IERROR_NO_ERROR) {
 			sctp_association_free(new_asoc);
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 		}
 	}
 
@@ -863,23 +874,23 @@ nomem:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_1E_ca(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_1E_ca(struct net *net,
+				      const struct sctp_endpoint *ep,
 				      const struct sctp_association *asoc,
 				      const sctp_subtype_t type, void *arg,
 				      sctp_cmd_seq_t *commands)
 {
 	struct sctp_chunk *chunk = arg;
 	struct sctp_ulpevent *ev;
-	struct net *net;
 
 	if (!sctp_vtag_verify(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Verify that the chunk length for the COOKIE-ACK is OK.
 	 * If we don't do this, any bundled chunks may be junked.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	/* Reset init error count upon receipt of COOKIE-ACK,
@@ -900,7 +911,6 @@ sctp_disposition_t sctp_sf_do_5_1E_ca(const struct sctp_endpoint *ep,
 			SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_ESTABLISHED));
-	net = sock_net(ep->base.sk);
 	SCTP_INC_STATS(net, SCTP_MIB_CURRESTAB);
 	SCTP_INC_STATS(net, SCTP_MIB_ACTIVEESTABS);
 	sctp_add_cmd_sf(commands, SCTP_CMD_HB_TIMERS_START, SCTP_NULL());
@@ -967,7 +977,8 @@ static sctp_disposition_t sctp_sf_heartbeat(const struct sctp_endpoint *ep,
 }
 
 /* Generate a HEARTBEAT packet on the given transport.  */
-sctp_disposition_t sctp_sf_sendbeat_8_3(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_sendbeat_8_3(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -976,13 +987,11 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const struct sctp_endpoint *ep,
 	struct sctp_transport *transport = (struct sctp_transport *) arg;
 
 	if (asoc->overall_error_count >= asoc->max_retrans) {
-		struct net *net;
 		sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
 				SCTP_ERROR(ETIMEDOUT));
 		/* CMD_ASSOC_FAILED calls CMD_DELETE_TCB. */
 		sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
 				SCTP_PERR(SCTP_ERROR_NO_ERROR));
-		net = sock_net(ep->base.sk);
 		SCTP_INC_STATS(net, SCTP_MIB_ABORTEDS);
 		SCTP_DEC_STATS(net, SCTP_MIB_CURRESTAB);
 		return SCTP_DISPOSITION_DELETE_TCB;
@@ -1039,7 +1048,8 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const struct sctp_endpoint *ep,
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_beat_8_3(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_beat_8_3(struct net *net,
+				    const struct sctp_endpoint *ep,
 				    const struct sctp_association *asoc,
 				    const sctp_subtype_t type,
 				    void *arg,
@@ -1050,11 +1060,11 @@ sctp_disposition_t sctp_sf_beat_8_3(const struct sctp_endpoint *ep,
 	size_t paylen = 0;
 
 	if (!sctp_vtag_verify(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the HEARTBEAT chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_heartbeat_chunk_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	/* 8.3 The receiver of the HEARTBEAT should immediately
@@ -1106,7 +1116,8 @@ nomem:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_backbeat_8_3(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_backbeat_8_3(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -1119,12 +1130,12 @@ sctp_disposition_t sctp_sf_backbeat_8_3(const struct sctp_endpoint *ep,
 	unsigned long max_interval;
 
 	if (!sctp_vtag_verify(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the HEARTBEAT-ACK chunk has a valid length.  */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t) +
 					    sizeof(sctp_sender_hb_info_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	hbinfo = (sctp_sender_hb_info_t *) chunk->skb->data;
@@ -1213,7 +1224,7 @@ static int sctp_sf_send_restart_abort(struct net *net, union sctp_addr *ssa,
 	/* Association is NULL since this may be a restart attack and we
 	 * want to send back the attacker's vtag.
 	 */
-	pkt = sctp_abort_pkt_new(ep, NULL, init, errhdr, len);
+	pkt = sctp_abort_pkt_new(net, ep, NULL, init, errhdr, len);
 
 	if (!pkt)
 		goto out;
@@ -1370,6 +1381,7 @@ static char sctp_tietags_compare(struct sctp_association *new_asoc,
  * chunk handling.
  */
 static sctp_disposition_t sctp_sf_do_unexpected_init(
+	struct net *net,
 	const struct sctp_endpoint *ep,
 	const struct sctp_association *asoc,
 	const sctp_subtype_t type,
@@ -1394,20 +1406,20 @@ static sctp_disposition_t sctp_sf_do_unexpected_init(
 	 * with an INIT chunk that is bundled with other chunks.
 	 */
 	if (!chunk->singleton)
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* 3.1 A packet containing an INIT chunk MUST have a zero Verification
 	 * Tag.
 	 */
 	if (chunk->sctp_hdr->vtag != 0)
-		return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the INIT chunk has a valid length.
 	 * In this case, we generate a protocol violation since we have
 	 * an association established.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_init_chunk_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 	/* Grab the INIT header.  */
 	chunk->subh.init_hdr = (sctp_inithdr_t *) chunk->skb->data;
@@ -1424,7 +1436,7 @@ static sctp_disposition_t sctp_sf_do_unexpected_init(
 		 * Send an ABORT, with causes if there is any.
 		 */
 		if (err_chunk) {
-			packet = sctp_abort_pkt_new(ep, asoc, arg,
+			packet = sctp_abort_pkt_new(net, ep, asoc, arg,
 					(__u8 *)(err_chunk->chunk_hdr) +
 					sizeof(sctp_chunkhdr_t),
 					ntohs(err_chunk->chunk_hdr->length) -
@@ -1433,14 +1445,14 @@ static sctp_disposition_t sctp_sf_do_unexpected_init(
 			if (packet) {
 				sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
 						SCTP_PACKET(packet));
-				SCTP_INC_STATS(sock_net(ep->base.sk), SCTP_MIB_OUTCTRLCHUNKS);
+				SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 				retval = SCTP_DISPOSITION_CONSUME;
 			} else {
 				retval = SCTP_DISPOSITION_NOMEM;
 			}
 			goto cleanup;
 		} else {
-			return sctp_sf_tabort_8_4_8(ep, asoc, type, arg,
+			return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg,
 						    commands);
 		}
 	}
@@ -1582,7 +1594,8 @@ cleanup:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_2_1_siminit(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_2_1_siminit(struct net *net,
+				    const struct sctp_endpoint *ep,
 				    const struct sctp_association *asoc,
 				    const sctp_subtype_t type,
 				    void *arg,
@@ -1591,7 +1604,7 @@ sctp_disposition_t sctp_sf_do_5_2_1_siminit(const struct sctp_endpoint *ep,
 	/* Call helper to do the real work for both simulataneous and
 	 * duplicate INIT chunk handling.
 	 */
-	return sctp_sf_do_unexpected_init(ep, asoc, type, arg, commands);
+	return sctp_sf_do_unexpected_init(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -1635,7 +1648,8 @@ sctp_disposition_t sctp_sf_do_5_2_1_siminit(const struct sctp_endpoint *ep,
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_2_2_dupinit(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_2_2_dupinit(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -1644,7 +1658,7 @@ sctp_disposition_t sctp_sf_do_5_2_2_dupinit(const struct sctp_endpoint *ep,
 	/* Call helper to do the real work for both simulataneous and
 	 * duplicate INIT chunk handling.
 	 */
-	return sctp_sf_do_unexpected_init(ep, asoc, type, arg, commands);
+	return sctp_sf_do_unexpected_init(net, ep, asoc, type, arg, commands);
 }
 
 
@@ -1657,19 +1671,19 @@ sctp_disposition_t sctp_sf_do_5_2_2_dupinit(const struct sctp_endpoint *ep,
  * An unexpected INIT ACK usually indicates the processing of an old or
  * duplicated INIT chunk.
 */
-sctp_disposition_t sctp_sf_do_5_2_3_initack(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_2_3_initack(struct net *net,
+					    const struct sctp_endpoint *ep,
 					    const struct sctp_association *asoc,
 					    const sctp_subtype_t type,
 					    void *arg, sctp_cmd_seq_t *commands)
 {
-	struct net *net = sock_net(ep->base.sk);
 	/* Per the above section, we'll discard the chunk if we have an
 	 * endpoint.  If this is an OOTB INIT-ACK, treat it as such.
 	 */
 	if (ep == sctp_sk(net->sctp.ctl_sock)->ep)
-		return sctp_sf_ootb(ep, asoc, type, arg, commands);
+		return sctp_sf_ootb(net, ep, asoc, type, arg, commands);
 	else
-		return sctp_sf_discard_chunk(ep, asoc, type, arg, commands);
+		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 }
 
 /* Unexpected COOKIE-ECHO handler for peer restart (Table 2, action 'A')
@@ -1677,7 +1691,8 @@ sctp_disposition_t sctp_sf_do_5_2_3_initack(const struct sctp_endpoint *ep,
  * Section 5.2.4
  *  A)  In this case, the peer may have restarted.
  */
-static sctp_disposition_t sctp_sf_do_dupcook_a(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_dupcook_a(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					struct sctp_chunk *chunk,
 					sctp_cmd_seq_t *commands,
@@ -1713,7 +1728,7 @@ static sctp_disposition_t sctp_sf_do_dupcook_a(const struct sctp_endpoint *ep,
 	 * its peer.
 	*/
 	if (sctp_state(asoc, SHUTDOWN_ACK_SENT)) {
-		disposition = sctp_sf_do_9_2_reshutack(ep, asoc,
+		disposition = sctp_sf_do_9_2_reshutack(net, ep, asoc,
 				SCTP_ST_CHUNK(chunk->chunk_hdr->type),
 				chunk, commands);
 		if (SCTP_DISPOSITION_NOMEM == disposition)
@@ -1776,7 +1791,8 @@ nomem:
  *      after responding to the local endpoint's INIT
  */
 /* This case represents an initialization collision.  */
-static sctp_disposition_t sctp_sf_do_dupcook_b(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_dupcook_b(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					struct sctp_chunk *chunk,
 					sctp_cmd_seq_t *commands,
@@ -1797,7 +1813,7 @@ static sctp_disposition_t sctp_sf_do_dupcook_b(const struct sctp_endpoint *ep,
 	sctp_add_cmd_sf(commands, SCTP_CMD_UPDATE_ASSOC, SCTP_ASOC(new_asoc));
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_ESTABLISHED));
-	SCTP_INC_STATS(sock_net(new_asoc->base.sk), SCTP_MIB_CURRESTAB);
+	SCTP_INC_STATS(net, SCTP_MIB_CURRESTAB);
 	sctp_add_cmd_sf(commands, SCTP_CMD_HB_TIMERS_START, SCTP_NULL());
 
 	repl = sctp_make_cookie_ack(new_asoc, chunk);
@@ -1846,7 +1862,8 @@ nomem:
  *     but a new tag of its own.
  */
 /* This case represents an initialization collision.  */
-static sctp_disposition_t sctp_sf_do_dupcook_c(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_dupcook_c(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					struct sctp_chunk *chunk,
 					sctp_cmd_seq_t *commands,
@@ -1867,7 +1884,8 @@ static sctp_disposition_t sctp_sf_do_dupcook_c(const struct sctp_endpoint *ep,
  *    enter the ESTABLISHED state, if it has not already done so.
  */
 /* This case represents an initialization collision.  */
-static sctp_disposition_t sctp_sf_do_dupcook_d(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_dupcook_d(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					struct sctp_chunk *chunk,
 					sctp_cmd_seq_t *commands,
@@ -1889,7 +1907,7 @@ static sctp_disposition_t sctp_sf_do_dupcook_d(const struct sctp_endpoint *ep,
 				SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
 		sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 				SCTP_STATE(SCTP_STATE_ESTABLISHED));
-		SCTP_INC_STATS(sock_net(asoc->base.sk), SCTP_MIB_CURRESTAB);
+		SCTP_INC_STATS(net, SCTP_MIB_CURRESTAB);
 		sctp_add_cmd_sf(commands, SCTP_CMD_HB_TIMERS_START,
 				SCTP_NULL());
 
@@ -1961,7 +1979,8 @@ nomem:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_5_2_4_dupcook(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_5_2_4_dupcook(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -1980,7 +1999,7 @@ sctp_disposition_t sctp_sf_do_5_2_4_dupcook(const struct sctp_endpoint *ep,
 	 * done later.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	/* "Decode" the chunk.  We have no optional parameters so we
@@ -2014,12 +2033,12 @@ sctp_disposition_t sctp_sf_do_5_2_4_dupcook(const struct sctp_endpoint *ep,
 			goto nomem;
 
 		case -SCTP_IERROR_STALE_COOKIE:
-			sctp_send_stale_cookie_err(ep, asoc, chunk, commands,
+			sctp_send_stale_cookie_err(net, ep, asoc, chunk, commands,
 						   err_chk_p);
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 		case -SCTP_IERROR_BAD_SIG:
 		default:
-			return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 		}
 	}
 
@@ -2030,27 +2049,27 @@ sctp_disposition_t sctp_sf_do_5_2_4_dupcook(const struct sctp_endpoint *ep,
 
 	switch (action) {
 	case 'A': /* Association restart. */
-		retval = sctp_sf_do_dupcook_a(ep, asoc, chunk, commands,
+		retval = sctp_sf_do_dupcook_a(net, ep, asoc, chunk, commands,
 					      new_asoc);
 		break;
 
 	case 'B': /* Collision case B. */
-		retval = sctp_sf_do_dupcook_b(ep, asoc, chunk, commands,
+		retval = sctp_sf_do_dupcook_b(net, ep, asoc, chunk, commands,
 					      new_asoc);
 		break;
 
 	case 'C': /* Collision case C. */
-		retval = sctp_sf_do_dupcook_c(ep, asoc, chunk, commands,
+		retval = sctp_sf_do_dupcook_c(net, ep, asoc, chunk, commands,
 					      new_asoc);
 		break;
 
 	case 'D': /* Collision case D. */
-		retval = sctp_sf_do_dupcook_d(ep, asoc, chunk, commands,
+		retval = sctp_sf_do_dupcook_d(net, ep, asoc, chunk, commands,
 					      new_asoc);
 		break;
 
 	default: /* Discard packet for all others. */
-		retval = sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		retval = sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 		break;
 	}
 
@@ -2076,6 +2095,7 @@ nomem:
  * See sctp_sf_do_9_1_abort().
  */
 sctp_disposition_t sctp_sf_shutdown_pending_abort(
+	struct net *net,
 	const struct sctp_endpoint *ep,
 	const struct sctp_association *asoc,
 	const sctp_subtype_t type,
@@ -2085,7 +2105,7 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
 	struct sctp_chunk *chunk = arg;
 
 	if (!sctp_vtag_verify_either(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the ABORT chunk has a valid length.
 	 * Since this is an ABORT chunk, we have to discard it
@@ -2098,7 +2118,7 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
 	 * packet.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_abort_chunk_t)))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* ADD-IP: Special case for ABORT chunks
 	 * F4)  One special consideration is that ABORT Chunks arriving
@@ -2107,9 +2127,9 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(ep, asoc, type, arg, commands);
+		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 
-	return __sctp_sf_do_9_1_abort(ep, asoc, type, arg, commands);
+	return __sctp_sf_do_9_1_abort(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -2117,7 +2137,8 @@ sctp_disposition_t sctp_sf_shutdown_pending_abort(
  *
  * See sctp_sf_do_9_1_abort().
  */
-sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_shutdown_sent_abort(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -2126,7 +2147,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
 	struct sctp_chunk *chunk = arg;
 
 	if (!sctp_vtag_verify_either(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the ABORT chunk has a valid length.
 	 * Since this is an ABORT chunk, we have to discard it
@@ -2139,7 +2160,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
 	 * packet.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_abort_chunk_t)))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* ADD-IP: Special case for ABORT chunks
 	 * F4)  One special consideration is that ABORT Chunks arriving
@@ -2148,7 +2169,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(ep, asoc, type, arg, commands);
+		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
 
 	/* Stop the T2-shutdown timer. */
 	sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
@@ -2158,7 +2179,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
 	sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
 			SCTP_TO(SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD));
 
-	return __sctp_sf_do_9_1_abort(ep, asoc, type, arg, commands);
+	return __sctp_sf_do_9_1_abort(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -2167,6 +2188,7 @@ sctp_disposition_t sctp_sf_shutdown_sent_abort(const struct sctp_endpoint *ep,
  * See sctp_sf_do_9_1_abort().
  */
 sctp_disposition_t sctp_sf_shutdown_ack_sent_abort(
+	struct net *net,
 	const struct sctp_endpoint *ep,
 	const struct sctp_association *asoc,
 	const sctp_subtype_t type,
@@ -2176,7 +2198,7 @@ sctp_disposition_t sctp_sf_shutdown_ack_sent_abort(
 	/* The same T2 timer, so we should be able to use
 	 * common function with the SHUTDOWN-SENT state.
 	 */
-	return sctp_sf_shutdown_sent_abort(ep, asoc, type, arg, commands);
+	return sctp_sf_shutdown_sent_abort(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -2193,7 +2215,8 @@ sctp_disposition_t sctp_sf_shutdown_ack_sent_abort(
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_cookie_echoed_err(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_cookie_echoed_err(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -2203,13 +2226,13 @@ sctp_disposition_t sctp_sf_cookie_echoed_err(const struct sctp_endpoint *ep,
 	sctp_errhdr_t *err;
 
 	if (!sctp_vtag_verify(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the ERROR chunk has a valid length.
 	 * The parameter walking depends on this as well.
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_operr_chunk_t)))
-		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
 	/* Process the error here */
@@ -2219,7 +2242,7 @@ sctp_disposition_t sctp_sf_cookie_echoed_err(const struct sctp_endpoint *ep,
 	 */
 	sctp_walk_errors(err, chunk->chunk_hdr) {
 		if (SCTP_ERROR_STALE_COOKIE == err->cause)
-			return sctp_sf_do_5_2_6_stale(ep, asoc, type,
+			return sctp_sf_do_5_2_6_stale(net, ep, asoc, type,
 							arg, commands);
 	}
 
@@ -2228,7 +2251,7 @@ sctp_disposition_t sctp_sf_cookie_echoed_err(const struct sctp_endpoint *ep,
 	 * we are discarding the packet, there should be no adverse
 	 * affects.
 	 */
-	return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+	return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -2256,7 +2279,8 @@ sctp_disposition_t sctp_sf_cookie_echoed_err(const struct sctp_endpoint *ep,
  *
  * The return value is the disposition of the chunk.
  */
-static sctp_disposition_t sctp_sf_do_5_2_6_stale(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_do_5_2_6_stale(struct net *net,
+						 const struct sctp_endpoint *ep,
 						 const struct sctp_association *asoc,
 						 const sctp_subtype_t type,
 						 void *arg,
@@ -2378,7 +2402,8 @@ nomem:
  *
  * The return value is the disposition of the chunk.
  */
-sctp_disposition_t sctp_sf_do_9_1_abort(const struct sctp_endpoint *ep,
+sctp_disposition_t sctp_sf_do_9_1_abort(struct net *net,
+					const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const sctp_subtype_t type,
 					void *arg,
@@ -2387,7 +2412,7 @@ sctp_disposition_t sctp_sf_do_9_1_abort(const struct sctp_endpoint *ep,
 	struct sctp_chunk *chunk = arg;
 
 	if (!sctp_vtag_verify_either(chunk, asoc))
-		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the ABORT chunk has a valid length.
 	 * Since this is an ABORT chunk, we have to discard it
@@ -2400,7 +2425,7 @@ sctp_disposition_t sctp_sf_do_9_1_abort(const struct sctp_endpoint *ep,
 	 * packet.
 	 */
 	if (!sctp_chunk_length_valid(ch