Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini
      Varadhan.

   2) Simplify classifier state on sk_buff in order to shrink it a bit.
      From Willem de Bruijn.

   3) Introduce SIPHASH and it's usage for secure sequence numbers and
      syncookies. From Jason A. Donenfeld.

   4) Reduce CPU usage for ICMP replies we are going to limit or
      suppress, from Jesper Dangaard Brouer.

   5) Introduce Shared Memory Communications socket layer, from Ursula
      Braun.

   6) Add RACK loss detection and allow it to actually trigger fast
      recovery instead of just assisting after other algorithms have
      triggered it. From Yuchung Cheng.

   7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot.

   8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert.

   9) Export MPLS packet stats via netlink, from Robert Shearman.

  10) Significantly improve inet port bind conflict handling, especially
      when an application is restarted and changes it's setting of
      reuseport. From Josef Bacik.

  11) Implement TX batching in vhost_net, from Jason Wang.

  12) Extend the dummy device so that VF (virtual function) features,
      such as configuration, can be more easily tested. From Phil
      Sutter.

  13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric
      Dumazet.

  14) Add new bpf MAP, implementing a longest prefix match trie. From
      Daniel Mack.

  15) Packet sample offloading support in mlxsw driver, from Yotam Gigi.

  16) Add new aquantia driver, from David VomLehn.

  17) Add bpf tracepoints, from Daniel Borkmann.

  18) Add support for port mirroring to b53 and bcm_sf2 drivers, from
      Florian Fainelli.

  19) Remove custom busy polling in many drivers, it is done in the core
      networking since 4.5 times. From Eric Dumazet.

  20) Support XDP adjust_head in virtio_net, from John Fastabend.

  21) Fix several major holes in neighbour entry confirmation, from
      Julian Anastasov.

  22) Add XDP support to bnxt_en driver, from Michael Chan.

  23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan.

  24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi.

  25) Support GRO in IPSEC protocols, from Steffen Klassert"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits)
  Revert "ath10k: Search SMBIOS for OEM board file extension"
  net: socket: fix recvmmsg not returning error from sock_error
  bnxt_en: use eth_hw_addr_random()
  bpf: fix unlocking of jited image when module ronx not set
  arch: add ARCH_HAS_SET_MEMORY config
  net: napi_watchdog() can use napi_schedule_irqoff()
  tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"
  net/hsr: use eth_hw_addr_random()
  net: mvpp2: enable building on 64-bit platforms
  net: mvpp2: switch to build_skb() in the RX path
  net: mvpp2: simplify MVPP2_PRS_RI_* definitions
  net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT
  net: mvpp2: remove unused register definitions
  net: mvpp2: simplify mvpp2_bm_bufs_add()
  net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
  net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
  net: mvpp2: release reference to txq_cpu[] entry after unmapping
  net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
  net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
  net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
  ...

1 files changed, 161 insertions, 65 deletions

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 8ec20a64a3f8..e03bb1aab4d0 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -160,23 +160,22 @@ static sctp_disposition_t __sctp_sf_do_9_1_abort(struct net *net,
 /* Small helper function that checks if the chunk length
  * is of the appropriate length.  The 'required_length' argument
  * is set to be the size of a specific chunk we are testing.
- * Return Values:  1 = Valid length
- * 		   0 = Invalid length
+ * Return Values:  true  = Valid length
+ * 		   false = Invalid length
  *
  */
-static inline int
-sctp_chunk_length_valid(struct sctp_chunk *chunk,
-			   __u16 required_length)
+static inline bool
+sctp_chunk_length_valid(struct sctp_chunk *chunk, __u16 required_length)
 {
 	__u16 chunk_length = ntohs(chunk->chunk_hdr->length);
 
 	/* Previously already marked? */
 	if (unlikely(chunk->pdiscard))
-		return 0;
+		return false;
 	if (unlikely(chunk_length < required_length))
-		return 0;
+		return false;
 
-	return 1;
+	return true;
 }
 
 /**********************************************************
@@ -1022,6 +1021,34 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(struct net *net,
 	return SCTP_DISPOSITION_CONSUME;
 }
 
+/* resend asoc strreset_chunk.  */
+sctp_disposition_t sctp_sf_send_reconf(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_transport *transport = arg;
+
+	if (asoc->overall_error_count >= asoc->max_retrans) {
+		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));
+		SCTP_INC_STATS(net, SCTP_MIB_ABORTEDS);
+		SCTP_DEC_STATS(net, SCTP_MIB_CURRESTAB);
+		return SCTP_DISPOSITION_DELETE_TCB;
+	}
+
+	sctp_chunk_hold(asoc->strreset_chunk);
+	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
+			SCTP_CHUNK(asoc->strreset_chunk));
+	sctp_add_cmd_sf(commands, SCTP_CMD_STRIKE, SCTP_TRANSPORT(transport));
+
+	return SCTP_DISPOSITION_CONSUME;
+}
+
 /*
  * Process an heartbeat request.
  *
@@ -3237,36 +3264,34 @@ static sctp_disposition_t sctp_sf_tabort_8_4_8(struct net *net,
 	struct sctp_chunk *abort;
 
 	packet = sctp_ootb_pkt_new(net, asoc, chunk);
+	if (!packet)
+		return SCTP_DISPOSITION_NOMEM;
 
-	if (packet) {
-		/* Make an ABORT. The T bit will be set if the asoc
-		 * is NULL.
-		 */
-		abort = sctp_make_abort(asoc, chunk, 0);
-		if (!abort) {
-			sctp_ootb_pkt_free(packet);
-			return SCTP_DISPOSITION_NOMEM;
-		}
-
-		/* Reflect vtag if T-Bit is set */
-		if (sctp_test_T_bit(abort))
-			packet->vtag = ntohl(chunk->sctp_hdr->vtag);
+	/* Make an ABORT. The T bit will be set if the asoc
+	 * is NULL.
+	 */
+	abort = sctp_make_abort(asoc, chunk, 0);
+	if (!abort) {
+		sctp_ootb_pkt_free(packet);
+		return SCTP_DISPOSITION_NOMEM;
+	}
 
-		/* Set the skb to the belonging sock for accounting.  */
-		abort->skb->sk = ep->base.sk;
+	/* Reflect vtag if T-Bit is set */
+	if (sctp_test_T_bit(abort))
+		packet->vtag = ntohl(chunk->sctp_hdr->vtag);
 
-		sctp_packet_append_chunk(packet, abort);
+	/* Set the skb to the belonging sock for accounting.  */
+	abort->skb->sk = ep->base.sk;
 
-		sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
-				SCTP_PACKET(packet));
+	sctp_packet_append_chunk(packet, abort);
 
-		SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
+	sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
+			SCTP_PACKET(packet));
 
-		sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
-		return SCTP_DISPOSITION_CONSUME;
-	}
+	SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 
-	return SCTP_DISPOSITION_NOMEM;
+	sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+	return SCTP_DISPOSITION_CONSUME;
 }
 
 /*
@@ -3503,45 +3528,43 @@ static sctp_disposition_t sctp_sf_shut_8_4_5(struct net *net,
 	struct sctp_chunk *shut;
 
 	packet = sctp_ootb_pkt_new(net, asoc, chunk);
+	if (!packet)
+		return SCTP_DISPOSITION_NOMEM;
 
-	if (packet) {
-		/* Make an SHUTDOWN_COMPLETE.
-		 * The T bit will be set if the asoc is NULL.
-		 */
-		shut = sctp_make_shutdown_complete(asoc, chunk);
-		if (!shut) {
-			sctp_ootb_pkt_free(packet);
-			return SCTP_DISPOSITION_NOMEM;
-		}
-
-		/* Reflect vtag if T-Bit is set */
-		if (sctp_test_T_bit(shut))
-			packet->vtag = ntohl(chunk->sctp_hdr->vtag);
+	/* Make an SHUTDOWN_COMPLETE.
+	 * The T bit will be set if the asoc is NULL.
+	 */
+	shut = sctp_make_shutdown_complete(asoc, chunk);
+	if (!shut) {
+		sctp_ootb_pkt_free(packet);
+		return SCTP_DISPOSITION_NOMEM;
+	}
 
-		/* Set the skb to the belonging sock for accounting.  */
-		shut->skb->sk = ep->base.sk;
+	/* Reflect vtag if T-Bit is set */
+	if (sctp_test_T_bit(shut))
+		packet->vtag = ntohl(chunk->sctp_hdr->vtag);
 
-		sctp_packet_append_chunk(packet, shut);
+	/* Set the skb to the belonging sock for accounting.  */
+	shut->skb->sk = ep->base.sk;
 
-		sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
-				SCTP_PACKET(packet));
+	sctp_packet_append_chunk(packet, shut);
 
-		SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
+	sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
+			SCTP_PACKET(packet));
 
-		/* If the chunk length is invalid, we don't want to process
-		 * the reset of the packet.
-		 */
-		if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
-			return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+	SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 
-		/* We need to discard the rest of the packet to prevent
-		 * potential bomming attacks from additional bundled chunks.
-		 * This is documented in SCTP Threats ID.
-		 */
+	/* If the chunk length is invalid, we don't want to process
+	 * the reset of the packet.
+	 */
+	if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
-	}
 
-	return SCTP_DISPOSITION_NOMEM;
+	/* We need to discard the rest of the packet to prevent
+	 * potential bomming attacks from additional bundled chunks.
+	 * This is documented in SCTP Threats ID.
+	 */
+	return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 }
 
 /*
@@ -3811,6 +3834,60 @@ sctp_disposition_t sctp_sf_do_asconf_ack(struct net *net,
 	return SCTP_DISPOSITION_DISCARD;
 }
 
+/* RE-CONFIG Section 5.2 Upon reception of an RECONF Chunk. */
+sctp_disposition_t sctp_sf_do_reconf(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_paramhdr *err_param = NULL;
+	struct sctp_chunk *chunk = arg;
+	struct sctp_reconf_chunk *hdr;
+	union sctp_params param;
+
+	if (!sctp_vtag_verify(chunk, asoc)) {
+		sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_BAD_TAG,
+				SCTP_NULL());
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+	}
+
+	/* Make sure that the RECONF chunk has a valid length.  */
+	if (!sctp_chunk_length_valid(chunk, sizeof(*hdr)))
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
+
+	if (!sctp_verify_reconf(asoc, chunk, &err_param))
+		return sctp_sf_violation_paramlen(net, ep, asoc, type, arg,
+						  (void *)err_param, commands);
+
+	hdr = (struct sctp_reconf_chunk *)chunk->chunk_hdr;
+	sctp_walk_params(param, hdr, params) {
+		struct sctp_chunk *reply = NULL;
+		struct sctp_ulpevent *ev = NULL;
+
+		if (param.p->type == SCTP_PARAM_RESET_OUT_REQUEST)
+			reply = sctp_process_strreset_outreq(
+				(struct sctp_association *)asoc, param, &ev);
+		else if (param.p->type == SCTP_PARAM_RESET_IN_REQUEST)
+			reply = sctp_process_strreset_inreq(
+				(struct sctp_association *)asoc, param, &ev);
+		/* More handles for other types will be added here, by now it
+		 * just ignores other types.
+		 */
+
+		if (ev)
+			sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
+					SCTP_ULPEVENT(ev));
+
+		if (reply)
+			sctp_add_cmd_sf(commands, SCTP_CMD_REPLY,
+					SCTP_CHUNK(reply));
+	}
+
+	return SCTP_DISPOSITION_CONSUME;
+}
+
 /*
  * PR-SCTP Section 3.6 Receiver Side Implementation of PR-SCTP
  *
@@ -3844,6 +3921,9 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn(struct net *net,
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	if (!asoc->peer.prsctp_capable)
+		return sctp_sf_unk_chunk(net, ep, asoc, type, arg, commands);
+
 	/* Make sure that the FORWARD_TSN chunk has valid length.  */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_fwdtsn_chunk)))
 		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
@@ -3912,6 +3992,9 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn_fast(
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	if (!asoc->peer.prsctp_capable)
+		return sctp_sf_unk_chunk(net, ep, asoc, type, arg, commands);
+
 	/* Make sure that the FORWARD_TSN chunk has a valid length.  */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_fwdtsn_chunk)))
 		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
@@ -5162,6 +5245,19 @@ sctp_disposition_t sctp_sf_do_prm_asconf(struct net *net,
 	return SCTP_DISPOSITION_CONSUME;
 }
 
+/* RE-CONFIG Section 5.1 RECONF Chunk Procedures */
+sctp_disposition_t sctp_sf_do_prm_reconf(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;
+
+	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(chunk));
+	return SCTP_DISPOSITION_CONSUME;
+}
+
 /*
  * Ignore the primitive event
  *
@@ -6036,8 +6132,9 @@ static struct sctp_packet *sctp_ootb_pkt_new(struct net *net,
 	sctp_transport_route(transport, (union sctp_addr *)&chunk->dest,
 			     sctp_sk(net->sctp.ctl_sock));
 
-	packet = sctp_packet_init(&transport->packet, transport, sport, dport);
-	packet = sctp_packet_config(packet, vtag, 0);
+	packet = &transport->packet;
+	sctp_packet_init(packet, transport, sport, dport);
+	sctp_packet_config(packet, vtag, 0);
 
 	return packet;
 
@@ -6278,9 +6375,8 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	 * and is invalid.
 	 */
 	ssn = ntohs(data_hdr->ssn);
-	if (ordered && SSN_lt(ssn, sctp_ssn_peek(&asoc->ssnmap->in, sid))) {
+	if (ordered && SSN_lt(ssn, sctp_ssn_peek(asoc->stream, in, sid)))
 		return SCTP_IERROR_PROTO_VIOLATION;
-	}
 
 	/* Send the data up to the user.  Note:  Schedule  the
 	 * SCTP_CMD_CHUNK_ULP cmd before the SCTP_CMD_GEN_SACK, as the SACK