net/netfilter/nf_conntrack_sip.c

238 			 const char *dptr, unsigned int datalen,
242 	const char *start = dptr, *limit = dptr + datalen, *end;
368 		      unsigned int dataoff, unsigned int datalen,
373 	const char *start = dptr, *limit = dptr + datalen;
436 			      unsigned int dataoff, unsigned int datalen,
441 	const char *start = dptr, *limit = dptr + datalen;
466 			       unsigned int dataoff, unsigned int datalen,
474 			ret = ct_sip_next_header(ct, dptr, dataoff, datalen,
486 		ret = ct_sip_get_header(ct, dptr, dataoff, datalen,
502  * headers can be parsed by handing in a non-NULL datalen and in_header
506 			    unsigned int *dataoff, unsigned int datalen,
511 	const char *c, *limit = dptr + datalen;
515 	ret = ct_sip_walk_headers(ct, dptr, dataoff ? *dataoff : 0, datalen,
539 			      unsigned int dataoff, unsigned int datalen,
543 	const char *limit = dptr + datalen;
549 		limit = dptr + datalen;
567 			       unsigned int dataoff, unsigned int datalen,
572 	const char *limit = dptr + datalen;
577 		limit = dptr + datalen;
594 				 unsigned int dataoff, unsigned int datalen,
599 	const char *limit = dptr + datalen;
605 		limit = dptr + datalen;
624 				  unsigned int dataoff, unsigned int datalen,
629 	if (ct_sip_parse_param(ct, dptr, dataoff, datalen, "transport=",
728 			  unsigned int dataoff, unsigned int datalen,
734 	const char *start = dptr, *limit = dptr + datalen;
782 				 unsigned int dataoff, unsigned int datalen,
790 	ret = ct_sip_get_sdp_header(ct, dptr, dataoff, datalen, type, term,
848 				 const char **dptr, unsigned int *datalen,
951 		    !hooks->sdp_port(skb, protoff, dataoff, dptr, datalen,
974 				       datalen, rtp_exp, rtcp_exp,
1028 		       const char **dptr, unsigned int *datalen,
1047 	if (ct_sip_get_sdp_header(ct, *dptr, 0, *datalen,
1057 	if (ct_sip_parse_sdp_addr(ct, *dptr, sdpoff, *datalen,
1064 		if (ct_sip_get_sdp_header(ct, *dptr, mediaoff, *datalen,
1089 		if (ct_sip_parse_sdp_addr(ct, *dptr, mediaoff, *datalen,
1102 					    dptr, datalen,
1114 					      dptr, datalen, mediaoff,
1130 					 dptr, datalen, sdpoff,
1137 				   const char **dptr, unsigned int *datalen,
1146 		return process_sdp(skb, protoff, dataoff, dptr, datalen, cseq);
1154 				   const char **dptr, unsigned int *datalen,
1163 		return process_sdp(skb, protoff, dataoff, dptr, datalen, cseq);
1171 				  const char **dptr, unsigned int *datalen,
1180 		return process_sdp(skb, protoff, dataoff, dptr, datalen, cseq);
1188 				  const char **dptr, unsigned int *datalen,
1197 	ret = process_sdp(skb, protoff, dataoff, dptr, datalen, cseq);
1205 			       const char **dptr, unsigned int *datalen,
1221 				    const char **dptr, unsigned int *datalen,
1250 	if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_EXPIRES,
1254 	ret = ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen,
1267 	if (ct_sip_parse_transport(ct, *dptr, matchoff + matchlen, *datalen,
1272 					 matchoff + matchlen, *datalen,
1305 		ret = hooks->expect(skb, protoff, dataoff, dptr, datalen,
1324 				     const char **dptr, unsigned int *datalen,
1354 	if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_EXPIRES,
1361 		ret = ct_sip_parse_header_uri(ct, *dptr, &coff, *datalen,
1376 					   *datalen, &proto) == 0)
1381 						   *datalen, "expires=",
1410 				const char **dptr, unsigned int *datalen)
1417 	if (*datalen < strlen("SIP/2.0 200"))
1425 	if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_CSEQ,
1443 		if (*datalen < matchend + handler->len ||
1446 		return handler->response(skb, protoff, dataoff, dptr, datalen,
1454 			       const char **dptr, unsigned int *datalen)
1471 	if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen,
1484 		if (*datalen < handler->len + 2 ||
1491 		if (ct_sip_get_header(ct, *dptr, 0, *datalen, SIP_HDR_CSEQ,
1502 		return handler->request(skb, protoff, dataoff, dptr, datalen,
1510 			   const char **dptr, unsigned int *datalen)
1516 		ret = process_sip_request(skb, protoff, dataoff, dptr, datalen);
1518 		ret = process_sip_response(skb, protoff, dataoff, dptr, datalen);
1523 					 dptr, datalen)) {
1536 	unsigned int dataoff, datalen;
1562 	datalen = skb->len - dataoff;
1563 	if (datalen < strlen("SIP/2.0 200"))
1567 		if (ct_sip_get_header(ct, dptr, 0, datalen,
1577 		for (; end + strlen("\r\n\r\n") <= dptr + datalen; end++) {
1589 		if (msglen > datalen)
1602 		datalen  = datalen + diff - msglen;
1619 	unsigned int dataoff, datalen;
1633 	datalen = skb->len - dataoff;
1634 	if (datalen < strlen("SIP/2.0 200"))
1637 	return process_sip_msg(skb, ct, protoff, dataoff, &dptr, &datalen);