Merge http://linux-lksctp.bkbits.net/lksctp-2.5

into nuts.ninka.net:/disk1/davem/BK/net-2.5

include/linux/sctp.h

@@ -524,113 +524,4 @@ typedef struct sctp_addip_chunk {
 	sctp_addiphdr_t addip_hdr;
 } sctp_addip_chunk_t __attribute__((packed));
 
-/* FIXME:  Cleanup needs to continue below this line. */
-
-
-/* ADDIP Section 3.1.1
- *
- * ASCONF-Request Correlation ID: 32 bits (unsigned integer)
- *
- * This is an opaque integer assigned by the sender to identify each
- * request parameter. It is in host byte order and is only meaningful
- * to the sender. The receiver of the ASCONF Chunk will copy this 32
- * bit value into the ASCONF Correlation ID field of the
- * ASCONF-ACK. The sender of the ASCONF can use this same value in the
- * ASCONF-ACK to find which request the response is for.
- *
- * ASCONF Parameter: TLV format
- *
- * Each Address configuration change is represented by a TLV parameter
- * as defined in Section 3.2. One or more requests may be present in
- * an ASCONF Chunk.
- */
-typedef struct {
-	__u32	correlation;
-	sctp_paramhdr_t p;
-	__u8		payload[0];
-} sctpAsconfReq_t;
-
-/* ADDIP
- * 3.1.1  Address/Stream Configuration Change Chunk (ASCONF)
- *
- * This chunk is used to communicate to the remote endpoint one of the
- * configuration change requests that MUST be acknowledged.  The
- * information carried in the ASCONF Chunk uses the form of a
- * Tag-Length-Value (TLV), as described in "3.2.1
- * Optional/Variable-length Parameter Format" in [RFC2960], for all
- * variable parameters.
- */
-typedef struct {
-	__u32	serial;
-	__u8	reserved[3];
-	__u8	addr_type;
-	__u32	addr[4];
-	sctpAsconfReq_t requests[0];
-} sctpAsconf_t;
-
-/* ADDIP
- * 3.1.2 Address/Stream Configuration Acknowledgment Chunk (ASCONF-ACK)
- *
- * ASCONF-Request Correlation ID: 32 bits (unsigned integer)
- *
- * This value is copied from the ASCONF Correlation ID received in the
- * ASCONF Chunk. It is used by the receiver of the ASCONF-ACK to identify
- * which ASCONF parameter this response is associated with.
- *
- * ASCONF Parameter Response : TLV format
- *
- * The ASCONF Parameter Response is used in the ASCONF-ACK to report
- * status of ASCONF processing. By default, if a responding endpoint
- * does not include any Error Cause, a success is indicated. Thus a
- * sender of an ASCONF-ACK MAY indicate complete success of all TLVs in
- * an ASCONF by returning only the Chunk Type, Chunk Flags, Chunk Length
- * (set to 8) and the Serial Number.
- */
-typedef union {
-	struct {
-		__u32		correlation;
-		sctp_paramhdr_t header;	/* success report */
-	} success;
-	struct {
-		__u32		correlation;
-		sctp_paramhdr_t header;	/* error cause indication */
-		sctp_paramhdr_t errcause;
-		uint8_t request[0];	/* original request from ASCONF */
-	} error;
-#define __correlation	success.correlation
-#define __header	success.header
-#define __cause		error.errcause
-#define __request	error.request
-}  sctpAsconfAckRsp_t;
-
-/* ADDIP
- * 3.1.2 Address/Stream Configuration Acknowledgment Chunk (ASCONF-ACK)
- *
- * This chunk is used by the receiver of an ASCONF Chunk to
- * acknowledge the reception. It carries zero or more results for any
- * ASCONF Parameters that were processed by the receiver.
- */
-typedef struct {
-	__u32	serial;
-	sctpAsconfAckRsp_t responses[0];
-} sctpAsconfAck_t;
-
-/*********************************************************************
- * Internal structures
- *
- * These are data structures which never go out on the wire.
- *********************************************************************/
-
-/* What is this data structure for?  The TLV isn't one--it is just a
- * value.  Perhaps this data structure ought to have a type--otherwise
- * it is not unambigiously parseable.  --piggy
- */
-typedef struct {
-	struct list_head hook;
-	int length;	/* length of the TLV */
-
-	/* the actually TLV to be copied into ASCONF_ACK */
-	sctpAsconfAckRsp_t TLV;
-} sctpAsconfAckRspNode_t;
-
 #endif /* __LINUX_SCTP_H__ */

include/net/sctp/command.h

-/* SCTP kernel reference Implementation Copyright (C) 1999-2001
- * Cisco, Motorola, and IBM
+/* SCTP kernel reference Implementation
+ * (C) Copyright IBM Corp. 2001, 2003
+ * Copyright (C) 1999-2001 Cisco, Motorola
  *
  * This file is part of the SCTP kernel reference Implementation
  *
@@ -88,6 +89,7 @@ typedef enum {
 	SCTP_CMD_PART_DELIVER,	 /* Partial data delivery considerations. */
 	SCTP_CMD_RENEGE,         /* Renege data on an association. */
 	SCTP_CMD_SETUP_T4,	 /* ADDIP, setup T4 RTO timer parms. */
+	SCTP_CMD_PROCESS_OPERR,  /* Process an ERROR chunk. */
 	SCTP_CMD_LAST
 } sctp_verb_t;
 

include/net/sctp/sctp.h

@@ -116,6 +116,9 @@
 #define SCTP_STATIC static
 #endif
 
+#define MSECS_TO_JIFFIES(msec) (msec * HZ / 1000)
+#define JIFFIES_TO_MSECS(jiff) (jiff * 1000 / HZ)
+
 /*
  * Function declarations.
  */
@@ -495,22 +498,19 @@ for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
 #define tv_lt(s, t) \
    (s.tv_sec < t.tv_sec || (s.tv_sec == t.tv_sec && s.tv_usec < t.tv_usec))
 
-/* Stolen from net/profile.h.  Using it from there is more grief than
- * it is worth.
- */
-static inline void tv_add(const struct timeval *entered, struct timeval *leaved)
-{
-	time_t usecs = leaved->tv_usec + entered->tv_usec;
-	time_t secs = leaved->tv_sec + entered->tv_sec;
-
-	if (usecs >= 1000000) {
-		usecs -= 1000000;
-		secs++;
-	}
-	leaved->tv_sec = secs;
-	leaved->tv_usec = usecs;
-}
-
+/* Add tv1 to tv2. */
+#define TIMEVAL_ADD(tv1, tv2) \
+({ \
+        suseconds_t usecs = (tv2).tv_usec + (tv1).tv_usec; \
+        time_t secs = (tv2).tv_sec + (tv1).tv_sec; \
+\
+        if (usecs >= 1000000) { \
+                usecs -= 1000000; \
+                secs++; \
+        } \
+        (tv2).tv_sec = secs; \
+        (tv2).tv_usec = usecs; \
+})
 
 /* External references. */
 

include/net/sctp/sm.h

@@ -265,13 +265,19 @@ struct sctp_chunk *sctp_make_op_error(const struct sctp_association *,
 struct sctp_chunk *sctp_make_asconf(struct sctp_association *asoc,
 				    union sctp_addr *addr,
 				    int vparam_len);
+struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *,
+					      union sctp_addr *,
+					      struct sockaddr *,
+					      int, int);
+struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
+					     union sctp_addr *addr);
+struct sctp_chunk *sctp_make_asconf_ack(struct sctp_association *asoc,
+					int serial, int vparam_len);
+
 struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
 				       struct sctp_chunk *asconf,
 				       int vparam_len);
 
-struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
-					     union sctp_addr *addr);
-
 void sctp_chunk_assign_tsn(struct sctp_chunk *);
 void sctp_chunk_assign_ssn(struct sctp_chunk *);
 

include/net/sctp/structs.h

@@ -1085,6 +1085,10 @@ int sctp_add_bind_addr(struct sctp_bind_addr *, union sctp_addr *,
 int sctp_del_bind_addr(struct sctp_bind_addr *, union sctp_addr *);
 int sctp_bind_addr_match(struct sctp_bind_addr *, const union sctp_addr *,
 			 struct sctp_opt *);
+union sctp_addr *sctp_find_unmatch_addr(struct sctp_bind_addr	*bp,
+					const union sctp_addr	*addrs,
+					int			addrcnt,
+					struct sctp_opt		*opt);
 union sctp_params sctp_bind_addrs_to_raw(const struct sctp_bind_addr *bp,
 					 int *addrs_len, int gfp);
 int sctp_raw_to_bind_addrs(struct sctp_bind_addr *bp, __u8 *raw, int len,
@@ -1389,6 +1393,10 @@ struct sctp_association {
 		__u8	ipv4_address;	 /* Peer understands IPv4 addresses? */
 		__u8	ipv6_address;	 /* Peer understands IPv6 addresses? */
 		__u8	hostname_address;/* Peer understands DNS addresses? */
+
+		/* Does peer support ADDIP? */
+		__u8    asconf_capable;
+
 		struct sctp_inithdr i;
 		int cookie_len;
 		void *cookie;

net/sctp/associola.c

@@ -141,9 +141,9 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
 	 * socket values.
 	 */
 	asoc->max_retrans = sp->assocparams.sasoc_asocmaxrxt;
-	asoc->rto_initial = sp->rtoinfo.srto_initial * HZ / 1000;
-	asoc->rto_max = sp->rtoinfo.srto_max * HZ / 1000;
-	asoc->rto_min = sp->rtoinfo.srto_min * HZ / 1000;
+	asoc->rto_initial = MSECS_TO_JIFFIES(sp->rtoinfo.srto_initial);
+	asoc->rto_max = MSECS_TO_JIFFIES(sp->rtoinfo.srto_max);
+	asoc->rto_min = MSECS_TO_JIFFIES(sp->rtoinfo.srto_min);
 
 	asoc->overall_error_count = 0;
 
@@ -168,7 +168,8 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
 	asoc->c.sinit_num_ostreams  = sp->initmsg.sinit_num_ostreams;
 	asoc->max_init_attempts	= sp->initmsg.sinit_max_attempts;
 
-	asoc->max_init_timeo    = sp->initmsg.sinit_max_init_timeo * HZ / 1000;
+	asoc->max_init_timeo =
+		 MSECS_TO_JIFFIES(sp->initmsg.sinit_max_init_timeo);
 
 	/* Allocate storage for the ssnmap after the inbound and outbound
 	 * streams have been negotiated during Init.
@@ -246,6 +247,11 @@ struct sctp_association *sctp_association_init(struct sctp_association *asoc,
 	 */
 	asoc->peer.sack_needed = 1;
 
+	/* Assume that the peer recongizes ASCONF until reported otherwise
+	 * via an ERROR chunk.
+	 */
+	asoc->peer.asconf_capable = 1;
+
 	/* Create an input queue.  */
 	sctp_inq_init(&asoc->base.inqueue);
 	sctp_inq_set_th_handler(&asoc->base.inqueue,
@@ -495,7 +501,7 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 	/* Initialize the peer's heartbeat interval based on the
 	 * sock configured value.
 	 */
-	peer->hb_interval = sp->paddrparam.spp_hbinterval * HZ;
+	peer->hb_interval = MSECS_TO_JIFFIES(sp->paddrparam.spp_hbinterval);
 
 	/* Set the path max_retrans.  */
 	peer->max_retrans = asoc->max_retrans;

net/sctp/bind_addr.c

@@ -324,6 +324,43 @@ int sctp_bind_addr_match(struct sctp_bind_addr *bp,
 	return 0;
 }
 
+/* Find the first address in the bind address list that is not present in
+ * the addrs packed array.
+ */
+union sctp_addr *sctp_find_unmatch_addr(struct sctp_bind_addr	*bp,
+					const union sctp_addr	*addrs,
+					int			addrcnt,
+					struct sctp_opt		*opt)
+{
+	struct sctp_sockaddr_entry	*laddr;
+	union sctp_addr			*addr;
+	void 				*addr_buf;
+	struct sctp_af			*af;
+	struct list_head		*pos;
+	int				i;
+
+	list_for_each(pos, &bp->address_list) {
+		laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
+		
+		addr_buf = (union sctp_addr *)addrs;
+		for (i = 0; i < addrcnt; i++) {
+			addr = (union sctp_addr *)addr_buf;
+			af = sctp_get_af_specific(addr->v4.sin_family);
+			if (!af) 
+				return NULL;
+
+			if (opt->pf->cmp_addr(&laddr->a, addr, opt))
+				break;
+
+			addr_buf += af->sockaddr_len;
+		}
+		if (i == addrcnt)
+			return &laddr->a;
+	}
+
+	return NULL;
+}
+
 /* Copy out addresses from the global local address list. */
 static int sctp_copy_one_addr(struct sctp_bind_addr *dest, 
 			      union sctp_addr *addr,

net/sctp/endpointola.c

@@ -129,7 +129,7 @@ struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
 	ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
 		SCTP_DEFAULT_TIMEOUT_T1_INIT;
 	ep->timeouts[SCTP_EVENT_TIMEOUT_T2_SHUTDOWN] =
-		sp->rtoinfo.srto_initial * HZ / 1000;
+		MSECS_TO_JIFFIES(sp->rtoinfo.srto_initial);
 	ep->timeouts[SCTP_EVENT_TIMEOUT_T3_RTX] = 0;
 	ep->timeouts[SCTP_EVENT_TIMEOUT_T4_RTO] = 0;
 
@@ -138,7 +138,7 @@ struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep,
 	 * recommended value of 5 times 'RTO.Max'.
 	 */
         ep->timeouts[SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD]
-		= 5 * (sp->rtoinfo.srto_max * HZ / 1000);
+		= 5 * MSECS_TO_JIFFIES(sp->rtoinfo.srto_max);
 
 	ep->timeouts[SCTP_EVENT_TIMEOUT_HEARTBEAT] =
 		SCTP_DEFAULT_TIMEOUT_HEARTBEAT;

net/sctp/sm_make_chunk.c

 /* SCTP kernel reference Implementation
- * Copyright (C) IBM Corp. 2001, 2003
+ * (C) Copyright IBM Corp. 2001, 2003
  * Copyright (c) 1999-2000 Cisco, Inc.
  * Copyright (c) 1999-2001 Motorola, Inc.
  * Copyright (c) 2001-2002 Intel Corp.
@@ -1288,7 +1288,7 @@ sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 
 	/* Set an expiration time for the cookie.  */
 	do_gettimeofday(&cookie->c.expiration);
-	tv_add(&asoc->cookie_life, &cookie->c.expiration);
+	TIMEVAL_ADD(asoc->cookie_life, cookie->c.expiration);
 
 	/* Copy the peer's init packet.  */
 	memcpy(&cookie->c.peer_init[0], init_chunk->chunk_hdr,
@@ -2021,11 +2021,11 @@ struct sctp_chunk *sctp_make_asconf(struct sctp_association *asoc,
 	sctp_addiphdr_t asconf;
 	struct sctp_chunk *retval;
 	int length = sizeof(asconf) + vparam_len;
-	union sctp_params addrparam;
+	union sctp_addr_param addrparam;
 	int addrlen;
 	struct sctp_af *af = sctp_get_af_specific(addr->v4.sin_family);
 
-	addrlen = af->to_addr_param(addr, (union sctp_addr_param *)&addrparam);
+	addrlen = af->to_addr_param(addr, &addrparam);
 	if (!addrlen)
 		return NULL;
 	length += addrlen;
@@ -2045,6 +2045,83 @@ struct sctp_chunk *sctp_make_asconf(struct sctp_association *asoc,
 	return retval;
 }
 
+/* ADDIP
+ * 3.2.1 Add IP Address
+ * 	0                   1                   2                   3
+ * 	0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |        Type = 0xC001          |    Length = Variable          |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |               ASCONF-Request Correlation ID                   |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                       Address Parameter                       |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ * 3.2.2 Delete IP Address
+ * 	0                   1                   2                   3
+ * 	0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |        Type = 0xC002          |    Length = Variable          |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |               ASCONF-Request Correlation ID                   |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                       Address Parameter                       |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ */
+struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *asoc,
+					      union sctp_addr	      *laddr,
+					      struct sockaddr	      *addrs,
+					      int		      addrcnt,
+					      int		      flags)
+{
+	sctp_addip_param_t	param;
+	struct sctp_chunk	*retval;
+	union sctp_addr_param	addr_param;
+	union sctp_addr		*addr;
+	void			*addr_buf;
+	struct sctp_af		*af;
+	int			paramlen = sizeof(param);
+	int			addr_param_len = 0;
+	int 			totallen = 0;
+	int 			i;
+
+	/* Get total length of all the address parameters. */
+	addr_buf = addrs;
+	for (i = 0; i < addrcnt; i++) {
+		addr = (union sctp_addr *)addr_buf;
+		af = sctp_get_af_specific(addr->v4.sin_family);
+		addr_param_len = af->to_addr_param(addr, &addr_param);
+
+		totallen += paramlen;
+		totallen += addr_param_len;
+
+		addr_buf += af->sockaddr_len;
+	}
+
+	/* Create an asconf chunk with the required length. */
+	retval = sctp_make_asconf(asoc, laddr, totallen);
+	if (!retval)
+		return NULL;
+
+	/* Add the address parameters to the asconf chunk. */
+	addr_buf = addrs;
+	for (i = 0; i < addrcnt; i++) {
+		addr = (union sctp_addr *)addr_buf;
+		af = sctp_get_af_specific(addr->v4.sin_family);
+		addr_param_len = af->to_addr_param(addr, &addr_param);
+		param.param_hdr.type = flags;
+		param.param_hdr.length = htons(paramlen + addr_param_len);
+		param.crr_id = htonl(i);
+
+		sctp_addto_chunk(retval, paramlen, &param);
+		sctp_addto_chunk(retval, addr_param_len, &addr_param);
+
+		addr_buf += af->sockaddr_len;
+	}
+	return retval;
+}
+
 /* ADDIP
  * 3.2.4 Set Primary IP Address
  *	0                   1                   2                   3
@@ -2065,11 +2142,11 @@ struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
 	sctp_addip_param_t	param;
 	struct sctp_chunk 	*retval;
 	int 			len = sizeof(param);
-	union sctp_params	addrparam;
+	union sctp_addr_param	addrparam;
 	int			addrlen;
 	struct sctp_af		*af = sctp_get_af_specific(addr->v4.sin_family);
 
-	addrlen = af->to_addr_param(addr, (union sctp_addr_param *)&addrparam);
+	addrlen = af->to_addr_param(addr, &addrparam);
 	if (!addrlen)
 		return NULL;
 	len += addrlen;
@@ -2089,11 +2166,7 @@ struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
 	return retval;
 }
 
-/*
- * Unpack the parameters in an ASCONF chunk into an association and
- * generate ASCONF-ACK chunk.
- *
- * ADDIP 3.1.2 Address Configuration Acknowledgement Chunk (ASCONF-ACK)
+/* ADDIP 3.1.2 Address Configuration Acknowledgement Chunk (ASCONF-ACK)
  *      0                   1                   2                   3
  *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@@ -2110,8 +2183,28 @@ struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
  *     |                 ASCONF Parameter Response#N                   |
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *
- * All the parameter respoinces will be added in this function.
+ * Create an ASCONF_ACK chunk with enough space for the parameter responses. 
  */
+struct sctp_chunk *sctp_make_asconf_ack(struct sctp_association	*asoc,
+					int serial, int vparam_len)
+{
+	sctp_addiphdr_t		asconf;
+	struct sctp_chunk	*retval;
+	int			length = sizeof(asconf) + vparam_len;
+
+	/* Create the chunk.  */
+	retval = sctp_make_chunk(asoc, SCTP_CID_ASCONF_ACK, 0, length);
+	if (!retval)
+		return NULL;
+
+	asconf.serial = serial;
+
+	retval->subh.addip_hdr =
+		sctp_addto_chunk(retval, sizeof(asconf), &asconf);
+
+	return retval;
+}
+
 struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
 					struct sctp_chunk *asconf,
 					int vparam_len)

net/sctp/sm_sideeffect.c

 /* SCTP kernel reference Implementation
+ * (C) Copyright IBM Corp. 2001, 2003
  * Copyright (c) 1999 Cisco, Inc.
  * Copyright (c) 1999-2001 Motorola, Inc.
- * Copyright (c) 2001-2002 International Business Machines Corp.
  *
  * This file is part of the SCTP kernel reference Implementation
  *
@@ -690,6 +690,44 @@ static void sctp_cmd_setup_t4(sctp_cmd_seq_t *cmds,
 	chunk->transport = t;
 }
 
+/* Process an incoming Operation Error Chunk. */ 
+static void sctp_cmd_process_operr(sctp_cmd_seq_t *cmds,
+				   struct sctp_association *asoc,
+				   struct sctp_chunk *chunk)
+{
+	struct sctp_operr_chunk *operr_chunk;
+	struct sctp_errhdr *err_hdr;
+
+	operr_chunk = (struct sctp_operr_chunk *)chunk->chunk_hdr;
+	err_hdr = &operr_chunk->err_hdr;
+
+	switch (err_hdr->cause) {
+	case SCTP_ERROR_UNKNOWN_CHUNK:
+	{
+		struct sctp_chunkhdr *unk_chunk_hdr;
+
+		unk_chunk_hdr = (struct sctp_chunkhdr *)err_hdr->variable;
+		switch (unk_chunk_hdr->type) {
+		/* ADDIP 4.1 A9) If the peer responds to an ASCONF with an
+		 * ERROR chunk reporting that it did not recognized the ASCONF
+		 * chunk type, the sender of the ASCONF MUST NOT send any
+		 * further ASCONF chunks and MUST stop its T-4 timer.
+		 */
+		case SCTP_CID_ASCONF:
+			asoc->peer.asconf_capable = 0;
+			sctp_add_cmd_sf(cmds, SCTP_CMD_TIMER_STOP,
+					SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
+			break;
+		default:
+			break;
+		}
+		break;
+	}
+	default:
+		break;
+	}
+}
+
 /* These three macros allow us to pull the debugging code out of the
  * main flow of sctp_do_sm() to keep attention focused on the real
  * functionality there.
@@ -1205,6 +1243,9 @@ int sctp_cmd_interpreter(sctp_event_t event_type, sctp_subtype_t subtype,
 			sctp_cmd_setup_t4(commands, asoc, cmd->obj.ptr);
 			break;
 
+		case SCTP_CMD_PROCESS_OPERR:
+			sctp_cmd_process_operr(commands, asoc, chunk);
+			break;
 		default:
 			printk(KERN_WARNING "Impossible command: %u, %p\n",
 			       cmd->verb, cmd->obj.ptr);

net/sctp/sm_statefuns.c

 /* SCTP kernel reference Implementation
+ * (C) Copyright IBM Corp. 2001, 2003
  * Copyright (c) 1999-2000 Cisco, Inc.
  * Copyright (c) 1999-2001 Motorola, Inc.
- * Copyright (c) 2001-2002 International Business Machines, Corp.
  * Copyright (c) 2001-2002 Intel Corp.
  * Copyright (c) 2002      Nokia Corp.
  *
@@ -2864,6 +2864,9 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
 			sctp_ulpevent_free(ev);
 			goto nomem;
 		}
+
+		sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
+				SCTP_CHUNK(chunk));	
 	}
 	return SCTP_DISPOSITION_CONSUME;
 

net/sctp/sysctl.c

@@ -44,7 +44,7 @@
 #include <linux/sysctl.h>
 
 static ctl_handler sctp_sysctl_jiffies_ms;
-static long rto_timer_min = 0;
+static long rto_timer_min = 1;
 static long rto_timer_max = 86400000; /* One day */
 
 static ctl_table sctp_table[] = {