Merged revisions 353321 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/10

................
  r353321 | alecdavis | 2012-01-31 11:16:22 +1300 (Tue, 31 Jan 2012) | 25 lines
  
  Merged revisions 353320 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.8
  
  ........
    r353320 | alecdavis | 2012-01-31 10:57:49 +1300 (Tue, 31 Jan 2012) | 18 lines
    
    RFC3261 Section 8.1.1.5. The sequence number value MUST be expressible as a 32-bit unsigned integer
    
    * fix: use %u instead of %d when dealing with CSeq numbers - to remove possibility of -ve numbers.
    
    * fix: change all uses of seqno and friends (ocseq icseq) from 'int' or 'unsigned int' to uint32_t.
    
    Summary of CSeq numbers.
    An initial CSeq number must be less than 2^31
    A CSeq number can increase in value up to 2^32-1
    An incrementing CSeq number must not wrap around to 0.
    
    Tested with Asterisk 1.8.8.2 with Grandstream phones.
     
    alecdavis (license 585)
    Tested by: alecdavis
     
    Review: https://reviewboard.asterisk.org/r/1699/
  ........
................


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@353347 65c4cc65-6c06-0410-ace0-fbb531ad65f3

3 files changed, 75 insertions, 75 deletions

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index d57acdc60..41a167657 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -1253,7 +1253,7 @@ static int get_address_family_filter(const struct ast_sockaddr *addr);
 /*--- Transmitting responses and requests */
 static int sipsock_read(int *id, int fd, short events, void *ignore);
 static int __sip_xmit(struct sip_pvt *p, struct ast_str *data);
-static int __sip_reliable_xmit(struct sip_pvt *p, int seqno, int resp, struct ast_str *data, int fatal, int sipmethod);
+static int __sip_reliable_xmit(struct sip_pvt *p, uint32_t seqno, int resp, struct ast_str *data, int fatal, int sipmethod);
 static void add_cc_call_info_to_response(struct sip_pvt *p, struct sip_request *resp);
 static int __transmit_response(struct sip_pvt *p, const char *msg, const struct sip_request *req, enum xmittype reliable);
 static int retrans_pkt(const void *data);
@@ -1267,8 +1267,8 @@ static int transmit_response_with_auth(struct sip_pvt *p, const char *msg, const
 static int transmit_provisional_response(struct sip_pvt *p, const char *msg, const struct sip_request *req, int with_sdp);
 static int transmit_response_with_allow(struct sip_pvt *p, const char *msg, const struct sip_request *req, enum xmittype reliable);
 static void transmit_fake_auth_response(struct sip_pvt *p, int sipmethod, struct sip_request *req, enum xmittype reliable);
-static int transmit_request(struct sip_pvt *p, int sipmethod, int inc, enum xmittype reliable, int newbranch);
-static int transmit_request_with_auth(struct sip_pvt *p, int sipmethod, int seqno, enum xmittype reliable, int newbranch);
+static int transmit_request(struct sip_pvt *p, int sipmethod, uint32_t seqno, enum xmittype reliable, int newbranch);
+static int transmit_request_with_auth(struct sip_pvt *p, int sipmethod, uint32_t seqno, enum xmittype reliable, int newbranch);
 static int transmit_publish(struct sip_epa_entry *epa_entry, enum sip_publish_type publish_type, const char * const explicit_uri);
 static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init, const char * const explicit_uri);
 static int transmit_reinvite_with_sdp(struct sip_pvt *p, int t38version, int oldsdp);
@@ -1281,8 +1281,8 @@ static int transmit_notify_with_mwi(struct sip_pvt *p, int newmsgs, int oldmsgs,
 static int transmit_notify_with_sipfrag(struct sip_pvt *p, int cseq, char *message, int terminate);
 static int transmit_cc_notify(struct ast_cc_agent *agent, struct sip_pvt *subscription, enum sip_cc_notify_state state);
 static int transmit_register(struct sip_registry *r, int sipmethod, const char *auth, const char *authheader);
-static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno);
-static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno);
+static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, uint32_t seqno);
+static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, uint32_t seqno);
 static void copy_request(struct sip_request *dst, const struct sip_request *src);
 static void receive_message(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, const char *e);
 static void parse_moved_contact(struct sip_pvt *p, struct sip_request *req, char **name, char **number, int set_call_forward);
@@ -1302,7 +1302,7 @@ static enum check_auth_result register_verify(struct sip_pvt *p, struct ast_sock
 static struct sip_pvt *get_sip_pvt_byid_locked(const char *callid, const char *totag, const char *fromtag);
 static void check_pendings(struct sip_pvt *p);
 static void *sip_park_thread(void *stuff);
-static int sip_park(struct ast_channel *chan1, struct ast_channel *chan2, struct sip_request *req, int seqno, const char *park_exten, const char *park_context);
+static int sip_park(struct ast_channel *chan1, struct ast_channel *chan2, struct sip_request *req, uint32_t seqno, const char *park_exten, const char *park_context);
 
 static void *sip_pickup_thread(void *stuff);
 static int sip_pickup(struct ast_channel *chan);
@@ -1517,7 +1517,7 @@ static void *sip_tcp_worker_fn(void *);
 static void initialize_initreq(struct sip_pvt *p, struct sip_request *req);
 static int init_req(struct sip_request *req, int sipmethod, const char *recip);
 static void deinit_req(struct sip_request *req);
-static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, int seqno, int newbranch);
+static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, uint32_t seqno, int newbranch);
 static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, const char * const explicit_uri);
 static int init_resp(struct sip_request *resp, const char *msg);
 static inline int resp_needs_contact(const char *msg, enum sipmethod method);
@@ -1551,27 +1551,27 @@ static void build_contact(struct sip_pvt *p);
 /*------Request handling functions */
 static int handle_incoming(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int *recount, int *nounlock);
 static int handle_request_update(struct sip_pvt *p, struct sip_request *req);
-static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, struct ast_sockaddr *addr, int *recount, const char *e, int *nounlock);
-static int handle_request_refer(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, int *nounlock);
+static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, struct ast_sockaddr *addr, int *recount, const char *e, int *nounlock);
+static int handle_request_refer(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, int *nounlock);
 static int handle_request_bye(struct sip_pvt *p, struct sip_request *req);
 static int handle_request_register(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *sin, const char *e);
 static int handle_request_cancel(struct sip_pvt *p, struct sip_request *req);
 static int handle_request_message(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, const char *e);
-static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int seqno, const char *e);
+static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, uint32_t seqno, const char *e);
 static void handle_request_info(struct sip_pvt *p, struct sip_request *req);
 static int handle_request_options(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, const char *e);
-static int handle_invite_replaces(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, struct ast_sockaddr *addr, int *nounlock);
-static int handle_request_notify(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int seqno, const char *e);
-static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *current, struct sip_request *req, int seqno, int *nounlock);
+static int handle_invite_replaces(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, struct ast_sockaddr *addr, int *nounlock);
+static int handle_request_notify(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, uint32_t seqno, const char *e);
+static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *current, struct sip_request *req, uint32_t seqno, int *nounlock);
 
 /*------Response handling functions */
-static void handle_response_publish(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static void handle_response_notify(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static void handle_response_refer(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static void handle_response_subscribe(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static int handle_response_register(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
-static void handle_response(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno);
+static void handle_response_publish(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static void handle_response_notify(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static void handle_response_refer(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static void handle_response_subscribe(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static int handle_response_register(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
+static void handle_response(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno);
 
 /*------ SRTP Support -------- */
 static int setup_srtp(struct sip_srtp **srtp);
@@ -3658,7 +3658,7 @@ static int retrans_pkt(const void *data)
 
 	if (pkt->owner && pkt->method != SIP_OPTIONS && xmitres == 0) {
 		if (pkt->is_fatal || sipdebug) { /* Tell us if it's critical or if we're debugging */
-			ast_log(LOG_WARNING, "Retransmission timeout reached on transmission %s for seqno %d (%s %s) -- See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions\n"
+			ast_log(LOG_WARNING, "Retransmission timeout reached on transmission %s for seqno %u (%s %s) -- See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions\n"
 				"Packet timed out after %dms with no response\n",
 				pkt->owner->callid,
 				pkt->seqno,
@@ -3758,7 +3758,7 @@ static int retrans_pkt(const void *data)
  * \brief Transmit packet with retransmits
  * \return 0 on success, -1 on failure to allocate packet
  */
-static enum sip_result __sip_reliable_xmit(struct sip_pvt *p, int seqno, int resp, struct ast_str *data, int fatal, int sipmethod)
+static enum sip_result __sip_reliable_xmit(struct sip_pvt *p, uint32_t seqno, int resp, struct ast_str *data, int fatal, int sipmethod)
 {
 	struct sip_pkt *pkt = NULL;
 	int siptimer_a = DEFAULT_RETRANS;
@@ -3985,7 +3985,7 @@ int sip_cancel_destroy(struct sip_pvt *p)
 
 /*! \brief Acknowledges receipt of a packet and stops retransmission
  * called with p locked*/
-int __sip_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod)
+int __sip_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod)
 {
 	struct sip_pkt *cur, *prev = NULL;
 	const char *msg = "Not Found";	/* used only for debugging */
@@ -4045,7 +4045,7 @@ int __sip_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod)
 			break;
 		}
 	}
-	ast_debug(1, "Stopping retransmission on '%s' of %s %d: Match %s\n",
+	ast_debug(1, "Stopping retransmission on '%s' of %s %u: Match %s\n",
 		p->callid, resp ? "Response" : "Request", seqno, msg);
 	return res;
 }
@@ -4069,7 +4069,7 @@ void __sip_pretend_ack(struct sip_pvt *p)
 }
 
 /*! \brief Acks receipt of packet, keep it around (used for provisional responses) */
-int __sip_semi_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod)
+int __sip_semi_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod)
 {
 	struct sip_pkt *cur;
 	int res = FALSE;
@@ -4087,7 +4087,7 @@ int __sip_semi_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod)
 			break;
 		}
 	}
-	ast_debug(1, "(Provisional) Stopping retransmission (but retaining packet) on '%s' %s %d: %s\n", p->callid, resp ? "Response" : "Request", seqno, res == -1 ? "Not Found" : "Found");
+	ast_debug(1, "(Provisional) Stopping retransmission (but retaining packet) on '%s' %s %u: %s\n", p->callid, resp ? "Response" : "Request", seqno, res == -1 ? "Not Found" : "Found");
 	return res;
 }
 
@@ -4180,7 +4180,7 @@ static void update_provisional_keepalive(struct sip_pvt *pvt, int with_sdp)
 }
 
 /*! \brief Transmit response on SIP request*/
-static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno)
+static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, uint32_t seqno)
 {
 	int res;
 
@@ -4222,7 +4222,7 @@ static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmitty
  * \brief Send SIP Request to the other part of the dialogue
  * \return see \ref __sip_xmit
  */
-static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno)
+static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, uint32_t seqno)
 {
 	int res;
 
@@ -7772,7 +7772,7 @@ struct sip_pvt *sip_alloc(ast_string_field callid, struct ast_sockaddr *addr,
 	if (req) {
 		struct sip_via *via;
 		const char *cseq = sip_get_header(req, "Cseq");
-		unsigned int seqno;
+		uint32_t seqno;
 
 		/* get branch parameter from initial Request that started this dialog */
 		via = parse_via(sip_get_header(req, "Via"));
@@ -7932,7 +7932,7 @@ struct match_req_args {
 	const char *callid;
 	const char *totag;
 	const char *fromtag;
-	unsigned int seqno;
+	uint32_t seqno;
 
 	/* Set if this method is a Response */
 	int respid;
@@ -8222,7 +8222,7 @@ static struct sip_pvt *find_call(struct sip_request *req, struct ast_sockaddr *a
 	const char *to = sip_get_header(req, "To");
 	const char *cseq = sip_get_header(req, "Cseq");
 	struct sip_pvt *sip_pvt_ptr;
-	unsigned int seqno;
+	uint32_t seqno;
 	/* Call-ID, to, from and Cseq are required by RFC 3261. (Max-forwards and via too - ignored now) */
 	/* sip_get_header always returns non-NULL so we must use ast_strlen_zero() */
 	if (ast_strlen_zero(callid) || ast_strlen_zero(to) ||
@@ -10533,7 +10533,7 @@ static int respprep(struct sip_request *resp, struct sip_pvt *p, const char *msg
 }
 
 /*! \brief Initialize a SIP request message (not the initial one in a dialog) */
-static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, int seqno, int newbranch)
+static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, uint32_t seqno, int newbranch)
 {
 	struct sip_request *orig = &p->initreq;
 	char stripped[80];
@@ -10596,7 +10596,7 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
 	}	
 	init_req(req, sipmethod, c);
 
-	snprintf(tmp, sizeof(tmp), "%d %s", seqno, sip_methods[sipmethod].text);
+	snprintf(tmp, sizeof(tmp), "%u %s", seqno, sip_methods[sipmethod].text);
 
 	add_header(req, "Via", p->via);
 	if (p->route) {
@@ -10668,9 +10668,9 @@ static int reqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod, in
 static int __transmit_response(struct sip_pvt *p, const char *msg, const struct sip_request *req, enum xmittype reliable)
 {
 	struct sip_request resp;
-	int seqno = 0;
+	uint32_t seqno = 0;
 
-	if (reliable && (sscanf(sip_get_header(req, "CSeq"), "%30d ", &seqno) != 1)) {
+	if (reliable && (sscanf(sip_get_header(req, "CSeq"), "%30u ", &seqno) != 1)) {
 		ast_log(LOG_WARNING, "Unable to determine sequence number from '%s'\n", sip_get_header(req, "CSeq"));
 		return -1;
 	}
@@ -10902,9 +10902,9 @@ static int transmit_response_with_auth(struct sip_pvt *p, const char *msg, const
 {
 	struct sip_request resp;
 	char tmp[512];
-	int seqno = 0;
+	uint32_t seqno = 0;
 
-	if (reliable && (sscanf(sip_get_header(req, "CSeq"), "%30d ", &seqno) != 1)) {
+	if (reliable && (sscanf(sip_get_header(req, "CSeq"), "%30u ", &seqno) != 1)) {
 		ast_log(LOG_WARNING, "Unable to determine sequence number from '%s'\n", sip_get_header(req, "CSeq"));
 		return -1;
 	}
@@ -12014,9 +12014,9 @@ add_sdp_cleanup:
 static int transmit_response_with_t38_sdp(struct sip_pvt *p, char *msg, struct sip_request *req, int retrans)
 {
 	struct sip_request resp;
-	int seqno;
+	uint32_t seqno;
 
-	if (sscanf(sip_get_header(req, "CSeq"), "%30d ", &seqno) != 1) {
+	if (sscanf(sip_get_header(req, "CSeq"), "%30u ", &seqno) != 1) {
 		ast_log(LOG_WARNING, "Unable to get seqno from '%s'\n", sip_get_header(req, "CSeq"));
 		return -1;
 	}
@@ -12096,8 +12096,8 @@ static void add_cc_call_info_to_response(struct sip_pvt *p, struct sip_request *
 static int transmit_response_with_sdp(struct sip_pvt *p, const char *msg, const struct sip_request *req, enum xmittype reliable, int oldsdp, int rpid)
 {
 	struct sip_request resp;
-	int seqno;
-	if (sscanf(sip_get_header(req, "CSeq"), "%30d ", &seqno) != 1) {
+	uint32_t seqno;
+	if (sscanf(sip_get_header(req, "CSeq"), "%30u ", &seqno) != 1) {
 		ast_log(LOG_WARNING, "Unable to get seqno from '%s'\n", sip_get_header(req, "CSeq"));
 		return -1;
 	}
@@ -12431,7 +12431,7 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
 
 	init_req(req, sipmethod, p->uri);
 	/* now tmp_n is available so reuse it to build the CSeq */
-	snprintf(tmp_n, sizeof(tmp_n), "%d %s", ++p->ocseq, sip_methods[sipmethod].text);
+	snprintf(tmp_n, sizeof(tmp_n), "%u %s", ++p->ocseq, sip_methods[sipmethod].text);
 
 	add_header(req, "Via", p->via);
 	add_header_max_forwards(p, req);
@@ -13912,7 +13912,7 @@ static int transmit_info_with_vidupdate(struct sip_pvt *p)
 /*! \brief Transmit generic SIP request
 	returns XMIT_ERROR if transmit failed with a critical error (don't retry)
 */
-static int transmit_request(struct sip_pvt *p, int sipmethod, int seqno, enum xmittype reliable, int newbranch)
+static int transmit_request(struct sip_pvt *p, int sipmethod, uint32_t seqno, enum xmittype reliable, int newbranch)
 {
 	struct sip_request resp;
 	
@@ -13944,7 +13944,7 @@ void sip_auth_headers(enum sip_auth_type code, char **header, char **respheader)
 }
 
 /*! \brief Transmit SIP request, auth added */
-static int transmit_request_with_auth(struct sip_pvt *p, int sipmethod, int seqno, enum xmittype reliable, int newbranch)
+static int transmit_request_with_auth(struct sip_pvt *p, int sipmethod, uint32_t seqno, enum xmittype reliable, int newbranch)
 {
 	struct sip_request resp;
 	
@@ -20418,7 +20418,7 @@ static int sip_reinvite_retry(const void *data)
  *
  * This function is only called upon the receipt of a 401/407 response to an UPDATE.
  */
-static void handle_response_update(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_update(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	if (p->options) {
 		p->options->auth_type = (resp == 401 ? WWW_AUTH : PROXY_AUTH);
@@ -20478,7 +20478,7 @@ static void cc_handle_publish_error(struct sip_pvt *pvt, const int resp, struct
 	ao2_ref(monitor_instance, -1);
 }
 
-static void handle_response_publish(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_publish(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	struct sip_epa_entry *epa_entry = p->epa_entry;
 	const char *etag = sip_get_header(req, "Sip-ETag");
@@ -20529,7 +20529,7 @@ static void handle_response_publish(struct sip_pvt *p, int resp, const char *res
 }
 
 /*! \brief Handle SIP response to INVITE dialogue */
-static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	int outgoing = ast_test_flag(&p->flags[0], SIP_OUTGOING);
 	int res = 0;
@@ -21005,7 +21005,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest
 /* \brief Handle SIP response in NOTIFY transaction
        We've sent a NOTIFY, now handle responses to it
   */
-static void handle_response_notify(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_notify(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	switch (resp) {
 	case 200:   /* Notify accepted */
@@ -21050,7 +21050,7 @@ static void handle_response_notify(struct sip_pvt *p, int resp, const char *rest
 }
 
 /* \brief Handle SIP response in SUBSCRIBE transaction */
-static void handle_response_subscribe(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_subscribe(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	if (p->subscribed == CALL_COMPLETION) {
 		struct sip_monitor_instance *monitor_instance;
@@ -21133,7 +21133,7 @@ static void handle_response_subscribe(struct sip_pvt *p, int resp, const char *r
 /* \brief Handle SIP response in REFER transaction
 	We've sent a REFER, now handle responses to it
   */
-static void handle_response_refer(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_refer(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	enum ast_control_transfer message = AST_TRANSFER_FAILED;
 
@@ -21233,7 +21233,7 @@ static void handle_response_refer(struct sip_pvt *p, int resp, const char *rest,
 }
 
 /*! \brief Handle responses on REGISTER to services */
-static int handle_response_register(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static int handle_response_register(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	int expires, expires_ms;
 	struct sip_registry *r;
@@ -21444,7 +21444,7 @@ static void handle_response_peerpoke(struct sip_pvt *p, int resp, struct sip_req
  * \note The INFO method MUST NOT change the state of calls or
  * related sessions (RFC 2976).
  */
-static void handle_response_info(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_info(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	int sipmethod = SIP_INFO;
 
@@ -21477,7 +21477,7 @@ static void handle_response_info(struct sip_pvt *p, int resp, const char *rest,
  * \brief Handle auth requests to a MESSAGE request
  * \return TRUE if authentication failed.
  */
-static int do_message_auth(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static int do_message_auth(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	char *header;
 	char *respheader;
@@ -21518,7 +21518,7 @@ static int do_message_auth(struct sip_pvt *p, int resp, const char *rest, struct
  * or related sessions if associated with a dialog. (Implied by
  * RFC 3428 Section 2).
  */
-static void handle_response_message(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response_message(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	int sipmethod = SIP_MESSAGE;
 	int in_dialog = ast_test_flag(&p->flags[1], SIP_PAGE2_DIALOG_ESTABLISHED);
@@ -21578,7 +21578,7 @@ static void stop_media_flows(struct sip_pvt *p)
 
 /*! \brief Handle SIP response in dialogue
 	\note only called by handle_incoming */
-static void handle_response(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, int seqno)
+static void handle_response(struct sip_pvt *p, int resp, const char *rest, struct sip_request *req, uint32_t seqno)
 {
 	struct ast_channel *owner;
 	int sipmethod;
@@ -22078,7 +22078,7 @@ static void *sip_park_thread(void *stuff)
 }
 
 /*! DO NOT hold any locks while calling sip_park */
-static int sip_park(struct ast_channel *chan1, struct ast_channel *chan2, struct sip_request *req, int seqno, const char *park_exten, const char *park_context)
+static int sip_park(struct ast_channel *chan1, struct ast_channel *chan2, struct sip_request *req, uint32_t seqno, const char *park_exten, const char *park_context)
 {
 	struct sip_dual *d;
 	struct ast_channel *transferee, *transferer;
@@ -22375,7 +22375,7 @@ static int handle_cc_notify(struct sip_pvt *pvt, struct sip_request *req)
 }
 
 /*! \brief Handle incoming notifications */
-static int handle_request_notify(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int seqno, const char *e)
+static int handle_request_notify(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, uint32_t seqno, const char *e)
 {
 	/* This is mostly a skeleton for future improvements */
 	/* Mostly created to return proper answers on notifications on outbound REFER's */
@@ -22632,7 +22632,7 @@ static int handle_request_options(struct sip_pvt *p, struct sip_request *req, st
 	handle_request_do(), we unlock p->owner before the masq.  By setting nounlock
 	we are indicating to handle_request_do() that we have already unlocked the owner.
  */
-static int handle_invite_replaces(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, struct ast_sockaddr *addr, int *nounlock)
+static int handle_invite_replaces(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, struct ast_sockaddr *addr, int *nounlock)
 {
 	int earlyreplace = 0;
 	int oneleggedreplace = 0;		/* Call with no bridge, propably IVR or voice message */
@@ -22848,7 +22848,7 @@ static int handle_request_update(struct sip_pvt *p, struct sip_request *req)
  *	plan but try to find the active call and masquerade
  *	into it
  */
-static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, struct ast_sockaddr *addr, int *recount, const char *e, int *nounlock)
+static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, struct ast_sockaddr *addr, int *recount, const char *e, int *nounlock)
 {
 	int res = INV_REQ_SUCCESS;
 	int gotdest;
@@ -23725,7 +23725,7 @@ request_invite_cleanup:
  *	If this function is successful, only the transferer pvt lock will remain on return.  Setting nounlock indicates
  *	to handle_request_do() that the pvt's owner it locked does not require an unlock.
  */
-static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *current, struct sip_request *req, int seqno, int *nounlock)
+static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *current, struct sip_request *req, uint32_t seqno, int *nounlock)
 {
 	struct sip_dual target;		/* Chan 1: Call from tranferer to Asterisk */
 					/* Chan 2: Call from Asterisk to target */
@@ -23978,7 +23978,7 @@ static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *
 	We can't destroy dialogs, since we want the call to continue.
 	
 	*/
-static int handle_request_refer(struct sip_pvt *p, struct sip_request *req, int debug, int seqno, int *nounlock)
+static int handle_request_refer(struct sip_pvt *p, struct sip_request *req, int debug, uint32_t seqno, int *nounlock)
 {
 	/*!
 	 * Chan1: Call between asterisk and transferer
@@ -25175,7 +25175,7 @@ static int handle_sip_publish_remove(struct sip_pvt *p, struct sip_request *req,
 	return res;
 }
 
-static int handle_request_publish(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, const int seqno, const char *uri)
+static int handle_request_publish(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, const uint32_t seqno, const char *uri)
 {
 	const char *etag = sip_get_header(req, "SIP-If-Match");
 	const char *event = sip_get_header(req, "Event");
@@ -25342,7 +25342,7 @@ static int handle_cc_subscribe(struct sip_pvt *p, struct sip_request *req)
 }
 
 /*! \brief  Handle incoming SUBSCRIBE request */
-static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int seqno, const char *e)
+static int handle_request_subscribe(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, uint32_t seqno, const char *e)
 {
 	int gotdest = 0;
 	int res = 0;
@@ -25813,7 +25813,7 @@ static int handle_incoming(struct sip_pvt *p, struct sip_request *req, struct as
 	const char *via;
 	const char *callid;
 	int via_pos = 0;
-	int seqno;
+	uint32_t seqno;
 	int len;
 	int respid;
 	int res = 0;
@@ -25838,7 +25838,7 @@ static int handle_incoming(struct sip_pvt *p, struct sip_request *req, struct as
 		ast_log(LOG_ERROR, "Dropping this SIP message with Call-ID '%s', it's incomplete.\n", callid);
 		error = 1;
 	}
-	if (!error && sscanf(cseq, "%30d%n", &seqno, &len) != 1) {
+	if (!error && sscanf(cseq, "%30u%n", &seqno, &len) != 1) {
 		ast_log(LOG_ERROR, "No seqno in '%s'. Dropping incomplete message.\n", cmd);
 		error = 1;
 	}
diff --git a/channels/sip/include/dialog.h b/channels/sip/include/dialog.h
index dc60f9753..92834b230 100644
--- a/channels/sip/include/dialog.h
+++ b/channels/sip/include/dialog.h
@@ -67,13 +67,13 @@ void dialog_unlink_all(struct sip_pvt *dialog);
 
 /*! \brief Acknowledges receipt of a packet and stops retransmission
  * called with p locked*/
-int __sip_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod);
+int __sip_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod);
 
 /*! \brief Pretend to ack all packets
  * called with p locked */
 void __sip_pretend_ack(struct sip_pvt *p);
 
 /*! \brief Acks receipt of packet, keep it around (used for provisional responses) */
-int __sip_semi_ack(struct sip_pvt *p, int seqno, int resp, int sipmethod);
+int __sip_semi_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod);
 
 #endif /* defined(_SIP_DIALOG_H) */
diff --git a/channels/sip/include/sip.h b/channels/sip/include/sip.h
index 524374386..c9862bc84 100644
--- a/channels/sip/include/sip.h
+++ b/channels/sip/include/sip.h
@@ -821,7 +821,7 @@ struct sip_dual {
 	struct ast_channel *chan1;   /*!< First channel involved */
 	struct ast_channel *chan2;   /*!< Second channel involved */
 	struct sip_request req;      /*!< Request that caused the transfer (REFER) */
-	int seqno;                   /*!< Sequence number */
+	uint32_t seqno;              /*!< Sequence number */
 	char *park_exten;
 	char *park_context;
 };
@@ -1037,9 +1037,9 @@ struct sip_pvt {
 	char via[128];                          /*!< Via: header */
 	int maxforwards;                        /*!< SIP Loop prevention */
 	struct sip_socket socket;               /*!< The socket used for this dialog */
-	unsigned int ocseq;                     /*!< Current outgoing seqno */
-	unsigned int icseq;                     /*!< Current incoming seqno */
-	unsigned int init_icseq;                /*!< Initial incoming seqno from first request */
+	uint32_t ocseq;                         /*!< Current outgoing seqno */
+	uint32_t icseq;                         /*!< Current incoming seqno */
+	uint32_t init_icseq;                    /*!< Initial incoming seqno from first request */
 	ast_group_t callgroup;                  /*!< Call group */
 	ast_group_t pickupgroup;                /*!< Pickup group */
 	int lastinvite;                         /*!< Last Cseq of invite */
@@ -1115,8 +1115,8 @@ struct sip_pvt {
 	unsigned int stalenonce:1;          /*!< Marks the current nonce as responded too */
 	char lastmsg[256];                  /*!< Last Message sent/received */
 	int amaflags;                       /*!< AMA Flags */
-	int pendinginvite;    /*!< Any pending INVITE or state NOTIFY (in subscribe pvt's) ? (seqno of this) */
-	int glareinvite;      /*!< A invite received while a pending invite is already present is stored here.  Its seqno is the
+	uint32_t pendinginvite; /*!< Any pending INVITE or state NOTIFY (in subscribe pvt's) ? (seqno of this) */
+	uint32_t glareinvite;      /*!< A invite received while a pending invite is already present is stored here.  Its seqno is the
 	                           value. Since this glare invite's seqno is not the same as the pending invite's, it must be
 	                           held in order to properly process acknowledgements for our 491 response. */
 	struct sip_request initreq;         /*!< Latest request that opened a new transaction
@@ -1197,7 +1197,7 @@ struct sip_pkt {
 	struct sip_pkt *next;     /*!< Next packet in linked list */
 	int retrans;              /*!< Retransmission number */
 	int method;               /*!< SIP method for this packet */
-	int seqno;                /*!< Sequence number */
+	uint32_t seqno;           /*!< Sequence number */
 	char is_resp;             /*!< 1 if this is a response packet (e.g. 200 OK), 0 if it is a request */
 	char is_fatal;            /*!< non-zero if there is a fatal error */
 	int response_code;        /*!< If this is a response, the response code */
@@ -1375,7 +1375,7 @@ struct sip_registry {
 	enum sipregistrystate regstate; /*!< Registration state (see above) */
 	struct timeval regtime;         /*!< Last successful registration time */
 	int callid_valid;       /*!< 0 means we haven't chosen callid for this registry yet. */
-	unsigned int ocseq;     /*!< Sequence number we got to for REGISTERs for this registry */
+	uint32_t ocseq;         /*!< Sequence number we got to for REGISTERs for this registry */
 	struct ast_dnsmgr_entry *dnsmgr;  /*!<  DNS refresh manager for register */
 	struct ast_sockaddr us;  /*!< Who the server thinks we are */
 	int noncecount;         /*!< Nonce-count */