Use ast_str_append() instead of ast_build_string() to construct
the sdp messages. Overall the code is slightly more readable (because the string is fully described by a single pointer), and more efficient (because the length is stored explicitly so you don't need to do strlen()). (I have been using this code for almost a year now.) I wish we had infix string operators to do this sort of things! Nothing to backport from this change. git-svn-id: http://svn.digium.com/svn/asterisk/trunk@76229 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
rizzo
parent
f48cf7b8c2
commit
e89d2140cf
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@ -1401,10 +1401,10 @@ static const char *get_sdp(struct sip_request *req, const char *name);
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static int find_sdp(struct sip_request *req);
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static int process_sdp(struct sip_pvt *p, struct sip_request *req);
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static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug, int *min_packet_size);
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static void add_noncodec_to_sdp(const struct sip_pvt *p, int format, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug);
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static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p);
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static void do_setnat(struct sip_pvt *p, int natflags);
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@ -6503,7 +6503,7 @@ static int add_vidupdate(struct sip_request *req)
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/*! \brief Add codec offer to SDP offer/answer body in INVITE or 200 OK */
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static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug, int *min_packet_size)
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{
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int rtp_code;
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@ -6520,20 +6520,20 @@ static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate
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fmt = ast_codec_pref_getsize(pref, codec);
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} else /* I dont see how you couldn't have p->rtp, but good to check for and error out if not there like earlier code */
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return;
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ast_build_string(m_buf, m_size, " %d", rtp_code);
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ast_build_string(a_buf, a_size, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_str_append(m_buf, 0, " %d", rtp_code);
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ast_str_append(a_buf, 0, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_rtp_lookup_mime_subtype(1, codec,
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ast_test_flag(&p->flags[0], SIP_G726_NONSTANDARD) ? AST_RTP_OPT_G726_NONSTANDARD : 0),
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sample_rate);
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if (codec == AST_FORMAT_G729A) {
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/* Indicate that we don't support VAD (G.729 annex B) */
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ast_build_string(a_buf, a_size, "a=fmtp:%d annexb=no\r\n", rtp_code);
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ast_str_append(a_buf, 0, "a=fmtp:%d annexb=no\r\n", rtp_code);
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} else if (codec == AST_FORMAT_G723_1) {
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/* Indicate that we don't support VAD (G.723.1 annex A) */
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ast_build_string(a_buf, a_size, "a=fmtp:%d annexa=no\r\n", rtp_code);
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ast_str_append(a_buf, 0, "a=fmtp:%d annexa=no\r\n", rtp_code);
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} else if (codec == AST_FORMAT_ILBC) {
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/* Add information about us using only 20/30 ms packetization */
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ast_build_string(a_buf, a_size, "a=fmtp:%d mode=%d\r\n", rtp_code, fmt.cur_ms);
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ast_str_append(a_buf, 0, "a=fmtp:%d mode=%d\r\n", rtp_code, fmt.cur_ms);
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}
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if (fmt.cur_ms && (fmt.cur_ms < *min_packet_size))
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@ -6547,7 +6547,7 @@ static void add_codec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate
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/*! \brief Add video codec offer to SDP offer/answer body in INVITE or 200 OK */
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/* This is different to the audio one now so we can add more caps later */
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static void add_vcodec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug, int *min_packet_size)
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{
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int rtp_code;
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@ -6561,15 +6561,15 @@ static void add_vcodec_to_sdp(const struct sip_pvt *p, int codec, int sample_rat
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if ((rtp_code = ast_rtp_lookup_code(p->vrtp, 1, codec)) == -1)
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return;
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ast_build_string(m_buf, m_size, " %d", rtp_code);
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ast_build_string(a_buf, a_size, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_str_append(m_buf, 0, " %d", rtp_code);
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ast_str_append(a_buf, 0, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_rtp_lookup_mime_subtype(1, codec, 0), sample_rate);
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/* Add fmtp code here */
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}
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/*! \brief Add text codec offer to SDP offer/answer body in INVITE or 200 OK */
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static void add_tcodec_to_sdp(const struct sip_pvt *p, int codec, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug, int *min_packet_size)
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{
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int rtp_code;
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@ -6583,8 +6583,8 @@ static void add_tcodec_to_sdp(const struct sip_pvt *p, int codec, int sample_rat
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if ((rtp_code = ast_rtp_lookup_code(p->trtp, 1, codec)) == -1)
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return;
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ast_build_string(m_buf, m_size, " %d", rtp_code);
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ast_build_string(a_buf, a_size, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_str_append(m_buf, 0, " %d", rtp_code);
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ast_str_append(a_buf, 0, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_rtp_lookup_mime_subtype(1, codec, 0), sample_rate);
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/* Add fmtp code here */
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}
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@ -6625,17 +6625,8 @@ static int add_t38_sdp(struct sip_request *resp, struct sip_pvt *p)
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int len = 0;
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int x = 0;
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struct sockaddr_in udptlsin;
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char v[256] = "";
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char s[256] = "";
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char o[256] = "";
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char c[256] = "";
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char t[256] = "";
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char m_modem[256];
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char a_modem[1024];
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char *m_modem_next = m_modem;
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size_t m_modem_left = sizeof(m_modem);
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char *a_modem_next = a_modem;
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size_t a_modem_left = sizeof(a_modem);
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struct ast_str *m_modem = ast_str_alloca(1024);
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struct ast_str *a_modem = ast_str_alloca(1024);
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struct sockaddr_in udptldest = { 0, };
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int debug;
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@ -6676,39 +6667,34 @@ static int add_t38_sdp(struct sip_request *resp, struct sip_pvt *p)
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p->t38.peercapability,
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p->t38.jointcapability);
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}
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snprintf(v, sizeof(v), "v=0\r\n");
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snprintf(o, sizeof(o), "o=root %d %d IN IP4 %s\r\n", p->sessionid, p->sessionversion, ast_inet_ntoa(udptldest.sin_addr));
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snprintf(s, sizeof(s), "s=session\r\n");
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snprintf(c, sizeof(c), "c=IN IP4 %s\r\n", ast_inet_ntoa(udptldest.sin_addr));
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snprintf(t, sizeof(t), "t=0 0\r\n");
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ast_build_string(&m_modem_next, &m_modem_left, "m=image %d udptl t38\r\n", ntohs(udptldest.sin_port));
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ast_str_append(&m_modem, 0, "v=0\r\n");
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ast_str_append(&m_modem, 0, "o=root %d %d IN IP4 %s\r\n", p->sessionid, p->sessionversion, ast_inet_ntoa(udptldest.sin_addr));
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ast_str_append(&m_modem, 0, "s=session\r\n");
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ast_str_append(&m_modem, 0, "c=IN IP4 %s\r\n", ast_inet_ntoa(udptldest.sin_addr));
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ast_str_append(&m_modem, 0, "t=0 0\r\n");
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ast_str_append(&m_modem, 0, "m=image %d udptl t38\r\n", ntohs(udptldest.sin_port));
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if ((p->t38.jointcapability & T38FAX_VERSION) == T38FAX_VERSION_0)
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxVersion:0\r\n");
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ast_str_append(&a_modem, 0, "a=T38FaxVersion:0\r\n");
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if ((p->t38.jointcapability & T38FAX_VERSION) == T38FAX_VERSION_1)
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxVersion:1\r\n");
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ast_str_append(&a_modem, 0, "a=T38FaxVersion:1\r\n");
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if ((x = t38_get_rate(p->t38.jointcapability)))
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38MaxBitRate:%d\r\n",x);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxFillBitRemoval:%d\r\n", (p->t38.jointcapability & T38FAX_FILL_BIT_REMOVAL) ? 1 : 0);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxTranscodingMMR:%d\r\n", (p->t38.jointcapability & T38FAX_TRANSCODING_MMR) ? 1 : 0);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxTranscodingJBIG:%d\r\n", (p->t38.jointcapability & T38FAX_TRANSCODING_JBIG) ? 1 : 0);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxRateManagement:%s\r\n", (p->t38.jointcapability & T38FAX_RATE_MANAGEMENT_LOCAL_TCF) ? "localTCF" : "transferredTCF");
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ast_str_append(&a_modem, 0, "a=T38MaxBitRate:%d\r\n",x);
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ast_str_append(&a_modem, 0, "a=T38FaxFillBitRemoval:%d\r\n", (p->t38.jointcapability & T38FAX_FILL_BIT_REMOVAL) ? 1 : 0);
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ast_str_append(&a_modem, 0, "a=T38FaxTranscodingMMR:%d\r\n", (p->t38.jointcapability & T38FAX_TRANSCODING_MMR) ? 1 : 0);
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ast_str_append(&a_modem, 0, "a=T38FaxTranscodingJBIG:%d\r\n", (p->t38.jointcapability & T38FAX_TRANSCODING_JBIG) ? 1 : 0);
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ast_str_append(&a_modem, 0, "a=T38FaxRateManagement:%s\r\n", (p->t38.jointcapability & T38FAX_RATE_MANAGEMENT_LOCAL_TCF) ? "localTCF" : "transferredTCF");
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x = ast_udptl_get_local_max_datagram(p->udptl);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxMaxBuffer:%d\r\n",x);
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxMaxDatagram:%d\r\n",x);
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ast_str_append(&a_modem, 0, "a=T38FaxMaxBuffer:%d\r\n",x);
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ast_str_append(&a_modem, 0, "a=T38FaxMaxDatagram:%d\r\n",x);
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if (p->t38.jointcapability != T38FAX_UDP_EC_NONE)
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ast_build_string(&a_modem_next, &a_modem_left, "a=T38FaxUdpEC:%s\r\n", (p->t38.jointcapability & T38FAX_UDP_EC_REDUNDANCY) ? "t38UDPRedundancy" : "t38UDPFEC");
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len = strlen(v) + strlen(s) + strlen(o) + strlen(c) + strlen(t) + strlen(m_modem) + strlen(a_modem);
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ast_str_append(&a_modem, 0, "a=T38FaxUdpEC:%s\r\n", (p->t38.jointcapability & T38FAX_UDP_EC_REDUNDANCY) ? "t38UDPRedundancy" : "t38UDPFEC");
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len = m_modem->used + a_modem->used;
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add_header(resp, "Content-Type", "application/sdp");
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add_header_contentLength(resp, len);
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add_line(resp, v);
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add_line(resp, o);
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add_line(resp, s);
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add_line(resp, c);
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add_line(resp, t);
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add_line(resp, m_modem);
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add_line(resp, a_modem);
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add_line(resp, m_modem->str);
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add_line(resp, a_modem->str);
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/* Update lastrtprx when we send our SDP */
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p->lastrtprx = p->lastrtptx = time(NULL);
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@ -6718,7 +6704,7 @@ static int add_t38_sdp(struct sip_request *resp, struct sip_pvt *p)
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/*! \brief Add RFC 2833 DTMF offer to SDP */
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static void add_noncodec_to_sdp(const struct sip_pvt *p, int format, int sample_rate,
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char **m_buf, size_t *m_size, char **a_buf, size_t *a_size,
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struct ast_str **m_buf, struct ast_str **a_buf,
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int debug)
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{
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int rtp_code;
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@ -6728,19 +6714,20 @@ static void add_noncodec_to_sdp(const struct sip_pvt *p, int format, int sample_
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if ((rtp_code = ast_rtp_lookup_code(p->rtp, 0, format)) == -1)
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return;
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ast_build_string(m_buf, m_size, " %d", rtp_code);
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ast_build_string(a_buf, a_size, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_str_append(m_buf, 0, " %d", rtp_code);
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ast_str_append(a_buf, 0, "a=rtpmap:%d %s/%d\r\n", rtp_code,
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ast_rtp_lookup_mime_subtype(0, format, 0),
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sample_rate);
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if (format == AST_RTP_DTMF)
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/* Indicate we support DTMF and FLASH... */
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ast_build_string(a_buf, a_size, "a=fmtp:%d 0-16\r\n", rtp_code);
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if (format == AST_RTP_DTMF) /* Indicate we support DTMF and FLASH... */
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ast_str_append(a_buf, 0, "a=fmtp:%d 0-16\r\n", rtp_code);
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}
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/*! \brief Set all IP media addresses for this call
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\note called from add_sdp()
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*/
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static void get_our_media_address(struct sip_pvt *p, int needvideo, struct sockaddr_in *sin, struct sockaddr_in *vsin, struct sockaddr_in *tsin, struct sockaddr_in *dest, struct sockaddr_in *vdest)
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static void get_our_media_address(struct sip_pvt *p, int needvideo,
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struct sockaddr_in *sin, struct sockaddr_in *vsin, struct sockaddr_in *tsin,
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struct sockaddr_in *dest, struct sockaddr_in *vdest)
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{
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/* First, get our address */
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ast_rtp_get_us(p->rtp, sin);
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@ -6794,24 +6781,12 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
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char *stime = "t=0 0\r\n"; /* Time the session is active */
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char bandwidth[256] = ""; /* Max bitrate */
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char *hold;
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char m_audio[256]; /* Media declaration line for audio */
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char m_video[256]; /* Media declaration line for video */
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char m_text[256]; /* Media declaration line for text */
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char a_audio[1024]; /* Attributes for audio */
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char a_video[1024]; /* Attributes for video */
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char a_text[1024]; /* Attributes for text */
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char *m_audio_next = m_audio;
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char *m_video_next = m_video;
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char *m_text_next = m_text;
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size_t m_audio_left = sizeof(m_audio);
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size_t m_video_left = sizeof(m_video);
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size_t m_text_left = sizeof(m_text);
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char *a_audio_next = a_audio;
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char *a_video_next = a_video;
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char *a_text_next = a_text;
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size_t a_audio_left = sizeof(a_audio);
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size_t a_video_left = sizeof(a_video);
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size_t a_text_left = sizeof(a_text);
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struct ast_str *m_audio = ast_str_alloca(256); /* Media declaration line for audio */
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struct ast_str *m_video = ast_str_alloca(256); /* Media declaration line for video */
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struct ast_str *m_text = ast_str_alloca(256); /* Media declaration line for text */
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struct ast_str *a_audio = ast_str_alloca(1024); /* Attributes for audio */
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struct ast_str *a_video = ast_str_alloca(1024); /* Attributes for video */
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struct ast_str *a_text = ast_str_alloca(1024); /* Attributes for text */
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int x;
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int capability;
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@ -6825,9 +6800,6 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
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char codecbuf[BUFSIZ];
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char buf[BUFSIZ];
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m_video[0] = '\0'; /* Reset the video media string if it's not needed */
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m_text[0] = '\0'; /* Reset the video media string if it's not needed */
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if (!p->rtp) {
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ast_log(LOG_WARNING, "No way to add SDP without an RTP structure\n");
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return AST_FAILURE;
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@ -6850,8 +6822,8 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
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#ifdef WHEN_WE_HAVE_T38_FOR_OTHER_TRANSPORTS
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if (ast_test_flag(&p->t38.t38support, SIP_PAGE2_T38SUPPORT_RTP)) {
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ast_build_string(&m_audio_next, &m_audio_left, " %d", 191);
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ast_build_string(&a_audio_next, &a_audio_left, "a=rtpmap:%d %s/%d\r\n", 191, "t38", 8000);
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ast_str_append(&m_audio, 0, " %d", 191);
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ast_str_append(&a_audio, 0, "a=rtpmap:%d %s/%d\r\n", 191, "t38", 8000);
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}
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#endif
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@ -6873,7 +6845,7 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
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/* Ok, we need video. Let's add what we need for video and set codecs.
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Video is handled differently than audio since we can not transcode. */
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if (needvideo) {
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ast_build_string(&m_video_next, &m_video_left, "m=video %d RTP/AVP", ntohs(vdest.sin_port));
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ast_str_append(&m_video, 0, "m=video %d RTP/AVP", ntohs(vdest.sin_port));
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/* Build max bitrate string */
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if (p->maxcallbitrate)
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@ -6884,9 +6856,11 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
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/* Check if we need text in this call */
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if((capability & AST_FORMAT_TEXT_MASK) && !ast_test_flag(&p->flags[1], SIP_PAGE2_NOTEXT)) {
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if (sipdebug_text) ast_verbose("We think we can do text\n");
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if (sipdebug_text)
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ast_verbose("We think we can do text\n");
|
||||
if (p->trtp) {
|
||||
if (sipdebug_text) ast_verbose("And we have a text rtp object\n");
|
||||
if (sipdebug_text)
|
||||
ast_verbose("And we have a text rtp object\n");
|
||||
needtext = TRUE;
|
||||
ast_debug(2, "This call needs text offers! \n");
|
||||
} else
|
||||
|
|
@ -6896,7 +6870,8 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
/* Ok, we need text. Let's add what we need for text and set codecs.
|
||||
Text is handled differently than audio since we can not transcode. */
|
||||
if (needtext) {
|
||||
if (sipdebug_text) ast_verbose("Lets set up the text sdp\n");
|
||||
if (sipdebug_text)
|
||||
ast_verbose("Lets set up the text sdp\n");
|
||||
/* Determine text destination */
|
||||
if (p->tredirip.sin_addr.s_addr) {
|
||||
tdest.sin_addr = p->tredirip.sin_addr;
|
||||
|
|
@ -6905,7 +6880,7 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
tdest.sin_addr = p->ourip.sin_addr;
|
||||
tdest.sin_port = tsin.sin_port;
|
||||
}
|
||||
ast_build_string(&m_text_next, &m_text_left, "m=text %d RTP/AVP", ntohs(tdest.sin_port));
|
||||
ast_str_append(&m_text, 0, "m=text %d RTP/AVP", ntohs(tdest.sin_port));
|
||||
|
||||
if (debug) /* XXX should I use tdest below ? */
|
||||
ast_verbose("Text is at %s port %d\n", ast_inet_ntoa(p->ourip.sin_addr), ntohs(tsin.sin_port));
|
||||
|
|
@ -6919,7 +6894,7 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
|
||||
snprintf(owner, sizeof(owner), "o=root %d %d IN IP4 %s\r\n", p->sessionid, p->sessionversion, ast_inet_ntoa(dest.sin_addr));
|
||||
snprintf(connection, sizeof(connection), "c=IN IP4 %s\r\n", ast_inet_ntoa(dest.sin_addr));
|
||||
ast_build_string(&m_audio_next, &m_audio_left, "m=audio %d RTP/AVP", ntohs(dest.sin_port));
|
||||
ast_str_append(&m_audio, 0, "m=audio %d RTP/AVP", ntohs(dest.sin_port));
|
||||
|
||||
if (ast_test_flag(&p->flags[1], SIP_PAGE2_CALL_ONHOLD) == SIP_PAGE2_CALL_ONHOLD_ONEDIR)
|
||||
hold = "a=recvonly\r\n";
|
||||
|
|
@ -6941,8 +6916,7 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
int codec = p->prefcodec & AST_FORMAT_AUDIO_MASK;
|
||||
|
||||
add_codec_to_sdp(p, codec, SDP_SAMPLE_RATE(codec),
|
||||
&m_audio_next, &m_audio_left,
|
||||
&a_audio_next, &a_audio_left,
|
||||
&m_audio, &a_audio,
|
||||
debug, &min_audio_packet_size);
|
||||
alreadysent |= codec;
|
||||
}
|
||||
|
|
@ -6961,8 +6935,7 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
continue;
|
||||
|
||||
add_codec_to_sdp(p, codec, SDP_SAMPLE_RATE(codec),
|
||||
&m_audio_next, &m_audio_left,
|
||||
&a_audio_next, &a_audio_left,
|
||||
&m_audio, &a_audio,
|
||||
debug, &min_audio_packet_size);
|
||||
alreadysent |= codec;
|
||||
}
|
||||
|
|
@ -6977,19 +6950,13 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
|
||||
if (x <= AST_FORMAT_MAX_AUDIO)
|
||||
add_codec_to_sdp(p, x, SDP_SAMPLE_RATE(x),
|
||||
&m_audio_next, &m_audio_left,
|
||||
&a_audio_next, &a_audio_left,
|
||||
debug, &min_audio_packet_size);
|
||||
&m_audio, &a_audio, debug, &min_audio_packet_size);
|
||||
else if (x <= AST_FORMAT_MAX_VIDEO)
|
||||
add_vcodec_to_sdp(p, x, 90000,
|
||||
&m_video_next, &m_video_left,
|
||||
&a_video_next, &a_video_left,
|
||||
debug, &min_video_packet_size);
|
||||
&m_video, &a_video, debug, &min_video_packet_size);
|
||||
else if (x <= AST_FORMAT_MAX_TEXT)
|
||||
add_tcodec_to_sdp(p, x, 1000,
|
||||
&m_text_next, &m_text_left,
|
||||
&a_text_next, &a_text_left,
|
||||
debug, &min_text_packet_size);
|
||||
&m_text, &a_text, debug, &min_text_packet_size);
|
||||
}
|
||||
|
||||
/* Now add DTMF RFC2833 telephony-event as a codec */
|
||||
|
|
@ -6997,43 +6964,42 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
if (!(p->jointnoncodeccapability & x))
|
||||
continue;
|
||||
|
||||
add_noncodec_to_sdp(p, x, 8000,
|
||||
&m_audio_next, &m_audio_left,
|
||||
&a_audio_next, &a_audio_left,
|
||||
debug);
|
||||
add_noncodec_to_sdp(p, x, 8000, &m_audio, &a_audio, debug);
|
||||
}
|
||||
|
||||
ast_debug(3, "-- Done with adding codecs to SDP\n");
|
||||
|
||||
if (!p->owner || !ast_internal_timing_enabled(p->owner))
|
||||
ast_build_string(&a_audio_next, &a_audio_left, "a=silenceSupp:off - - - -\r\n");
|
||||
ast_str_append(&a_audio, 0, "a=silenceSupp:off - - - -\r\n");
|
||||
|
||||
if (min_audio_packet_size)
|
||||
ast_build_string(&a_audio_next, &a_audio_left, "a=ptime:%d\r\n", min_audio_packet_size);
|
||||
ast_str_append(&a_audio, 0, "a=ptime:%d\r\n", min_audio_packet_size);
|
||||
|
||||
/* XXX don't think you can have ptime for video */
|
||||
if (min_video_packet_size)
|
||||
ast_build_string(&a_video_next, &a_video_left, "a=ptime:%d\r\n", min_video_packet_size);
|
||||
ast_str_append(&a_video, 0, "a=ptime:%d\r\n", min_video_packet_size);
|
||||
|
||||
/* XXX don't think you can have ptime for text */
|
||||
if (min_text_packet_size)
|
||||
ast_build_string(&a_text_next, &a_text_left, "a=ptime:%d\r\n", min_text_packet_size);
|
||||
ast_str_append(&a_text, 0, "a=ptime:%d\r\n", min_text_packet_size);
|
||||
|
||||
if ((m_audio_left < 2) || (m_video_left < 2) || (m_text_left < 2) ||
|
||||
(a_audio_left == 0) || (a_video_left == 0) || (a_text_left == 0))
|
||||
if (m_audio->len - m_audio->used < 2 || m_video->len - m_video->used < 2 ||
|
||||
m_text->len - m_text->used < 2 || a_text->len - a_text->used < 2 ||
|
||||
a_audio->len - a_audio->used < 2 || a_video->len - a_video->used < 2)
|
||||
ast_log(LOG_WARNING, "SIP SDP may be truncated due to undersized buffer!!\n");
|
||||
|
||||
ast_build_string(&m_audio_next, &m_audio_left, "\r\n");
|
||||
ast_str_append(&m_audio, 0, "\r\n");
|
||||
if (needvideo)
|
||||
ast_build_string(&m_video_next, &m_video_left, "\r\n");
|
||||
ast_str_append(&m_video, 0, "\r\n");
|
||||
if (needtext)
|
||||
ast_build_string(&m_text_next, &m_text_left, "\r\n");
|
||||
ast_str_append(&m_text, 0, "\r\n");
|
||||
|
||||
len = strlen(version) + strlen(subject) + strlen(owner) + strlen(connection) + strlen(stime) + strlen(m_audio) + strlen(a_audio) + strlen(hold);
|
||||
len = strlen(version) + strlen(subject) + strlen(owner) +
|
||||
strlen(connection) + strlen(stime) + m_audio->used + a_audio->used + strlen(hold);
|
||||
if (needvideo) /* only if video response is appropriate */
|
||||
len += strlen(m_video) + strlen(a_video) + strlen(bandwidth) + strlen(hold);
|
||||
len += m_video->used + a_video->used + strlen(bandwidth) + strlen(hold);
|
||||
if (needtext) /* only if text response is appropriate */
|
||||
len += strlen(m_text) + strlen(a_text) + strlen(hold);
|
||||
len += m_text->used + a_text->used + strlen(hold);
|
||||
|
||||
add_header(resp, "Content-Type", "application/sdp");
|
||||
add_header_contentLength(resp, len);
|
||||
|
|
@ -7044,17 +7010,17 @@ static enum sip_result add_sdp(struct sip_request *resp, struct sip_pvt *p)
|
|||
if (needvideo) /* only if video response is appropriate */
|
||||
add_line(resp, bandwidth);
|
||||
add_line(resp, stime);
|
||||
add_line(resp, m_audio);
|
||||
add_line(resp, a_audio);
|
||||
add_line(resp, m_audio->str);
|
||||
add_line(resp, a_audio->str);
|
||||
add_line(resp, hold);
|
||||
if (needvideo) { /* only if video response is appropriate */
|
||||
add_line(resp, m_video);
|
||||
add_line(resp, a_video);
|
||||
add_line(resp, m_video->str);
|
||||
add_line(resp, a_video->str);
|
||||
add_line(resp, hold); /* Repeat hold for the video stream */
|
||||
}
|
||||
if (needtext) { /* only if text response is appropriate */
|
||||
add_line(resp, m_text);
|
||||
add_line(resp, a_text);
|
||||
add_line(resp, m_text->str);
|
||||
add_line(resp, a_text->str);
|
||||
add_line(resp, hold); /* Repeat hold for the text stream */
|
||||
}
|
||||
|
||||
|
|
@ -7323,14 +7289,13 @@ static void build_rpid(struct sip_pvt *p)
|
|||
/*! \brief Initiate new SIP request to peer/user */
|
||||
static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmethod)
|
||||
{
|
||||
char invite_buf[256] = "";
|
||||
char *invite = invite_buf;
|
||||
size_t invite_max = sizeof(invite_buf);
|
||||
struct ast_str *invite = ast_str_alloca(256);
|
||||
char from[256];
|
||||
char to[256];
|
||||
char tmp[BUFSIZ/2];
|
||||
char tmp2[BUFSIZ/2];
|
||||
const char *l = NULL, *n = NULL;
|
||||
char tmp_n[BUFSIZ/2]; /* build a local copy of 'n' if needed */
|
||||
char tmp_l[BUFSIZ/2]; /* build a local copy of 'l' if needed */
|
||||
const char *l = NULL; /* XXX what is this, exactly ? */
|
||||
const char *n = NULL; /* XXX what is this, exactly ? */
|
||||
const char *urioptions = "";
|
||||
|
||||
if (ast_test_flag(&p->flags[0], SIP_USEREQPHONE)) {
|
||||
|
|
@ -7382,10 +7347,10 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
|
|||
ast_string_field_set(p, fromname, n);
|
||||
|
||||
if (pedanticsipchecking) {
|
||||
ast_uri_encode(n, tmp, sizeof(tmp), 0);
|
||||
n = tmp;
|
||||
ast_uri_encode(l, tmp2, sizeof(tmp2), 0);
|
||||
l = tmp2;
|
||||
ast_uri_encode(n, tmp_n, sizeof(tmp_n), 0);
|
||||
n = tmp_n;
|
||||
ast_uri_encode(l, tmp_l, sizeof(tmp_l), 0);
|
||||
l = tmp_l;
|
||||
}
|
||||
|
||||
if (ntohs(p->ourip.sin_port) != STANDARD_SIP_PORT && ast_strlen_zero(p->fromdomain))
|
||||
|
|
@ -7396,29 +7361,29 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
|
|||
/* If we're calling a registered SIP peer, use the fullcontact to dial to the peer */
|
||||
if (!ast_strlen_zero(p->fullcontact)) {
|
||||
/* If we have full contact, trust it */
|
||||
ast_build_string(&invite, &invite_max, "%s", p->fullcontact);
|
||||
ast_str_append(&invite, 0, "%s", p->fullcontact);
|
||||
} else {
|
||||
/* Otherwise, use the username while waiting for registration */
|
||||
ast_build_string(&invite, &invite_max, "sip:");
|
||||
ast_str_append(&invite, 0, "sip:");
|
||||
if (!ast_strlen_zero(p->username)) {
|
||||
n = p->username;
|
||||
if (pedanticsipchecking) {
|
||||
ast_uri_encode(n, tmp, sizeof(tmp), 0);
|
||||
n = tmp;
|
||||
ast_uri_encode(n, tmp_n, sizeof(tmp_n), 0);
|
||||
n = tmp_n;
|
||||
}
|
||||
ast_build_string(&invite, &invite_max, "%s@", n);
|
||||
ast_str_append(&invite, 0, "%s@", n);
|
||||
}
|
||||
ast_build_string(&invite, &invite_max, "%s", p->tohost);
|
||||
ast_str_append(&invite, 0, "%s", p->tohost);
|
||||
if (ntohs(p->sa.sin_port) != STANDARD_SIP_PORT)
|
||||
ast_build_string(&invite, &invite_max, ":%d", ntohs(p->sa.sin_port));
|
||||
ast_build_string(&invite, &invite_max, "%s", urioptions);
|
||||
ast_str_append(&invite, 0, ":%d", ntohs(p->sa.sin_port));
|
||||
ast_str_append(&invite, 0, "%s", urioptions);
|
||||
}
|
||||
|
||||
/* If custom URI options have been provided, append them */
|
||||
if (p->options && p->options->uri_options)
|
||||
ast_build_string(&invite, &invite_max, ";%s", p->options->uri_options);
|
||||
ast_str_append(&invite, 0, ";%s", p->options->uri_options);
|
||||
|
||||
ast_string_field_set(p, uri, invite_buf);
|
||||
ast_string_field_set(p, uri, invite->str);
|
||||
|
||||
if (sipmethod == SIP_NOTIFY && !ast_strlen_zero(p->theirtag)) {
|
||||
/* If this is a NOTIFY, use the From: tag in the subscribe (RFC 3265) */
|
||||
|
|
@ -7430,7 +7395,8 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
|
|||
snprintf(to, sizeof(to), "<%s>", p->uri);
|
||||
|
||||
init_req(req, sipmethod, p->uri);
|
||||
snprintf(tmp, sizeof(tmp), "%d %s", ++p->ocseq, sip_methods[sipmethod].text);
|
||||
/* 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);
|
||||
|
||||
add_header(req, "Via", p->via);
|
||||
add_header(req, "Max-Forwards", DEFAULT_MAX_FORWARDS);
|
||||
|
|
@ -7447,7 +7413,7 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
|
|||
build_contact(p);
|
||||
add_header(req, "Contact", p->our_contact);
|
||||
add_header(req, "Call-ID", p->callid);
|
||||
add_header(req, "CSeq", tmp);
|
||||
add_header(req, "CSeq", tmp_n);
|
||||
if (!ast_strlen_zero(global_useragent))
|
||||
add_header(req, "User-Agent", global_useragent);
|
||||
if (!ast_strlen_zero(p->rpid))
|
||||
|
|
@ -7552,9 +7518,9 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init)
|
|||
/*! \brief Used in the SUBSCRIBE notification subsystem */
|
||||
static int transmit_state_notify(struct sip_pvt *p, int state, int full, int timeout)
|
||||
{
|
||||
char tmp[4000], from[256], to[256];
|
||||
char *t = tmp, *c, *mfrom, *mto;
|
||||
size_t maxbytes = sizeof(tmp);
|
||||
struct ast_str *tmp = ast_str_alloca(4000);
|
||||
char from[256], to[256];
|
||||
char *c, *mfrom, *mto;
|
||||
struct sip_request req;
|
||||
char hint[AST_MAX_EXTENSION];
|
||||
char *statestring = "terminated";
|
||||
|
|
@ -7668,57 +7634,56 @@ static int transmit_state_notify(struct sip_pvt *p, int state, int full, int tim
|
|||
switch (p->subscribed) {
|
||||
case XPIDF_XML:
|
||||
case CPIM_PIDF_XML:
|
||||
ast_build_string(&t, &maxbytes, "<?xml version=\"1.0\"?>\n");
|
||||
ast_build_string(&t, &maxbytes, "<!DOCTYPE presence PUBLIC \"-//IETF//DTD RFCxxxx XPIDF 1.0//EN\" \"xpidf.dtd\">\n");
|
||||
ast_build_string(&t, &maxbytes, "<presence>\n");
|
||||
ast_build_string(&t, &maxbytes, "<presentity uri=\"%s;method=SUBSCRIBE\" />\n", mfrom);
|
||||
ast_build_string(&t, &maxbytes, "<atom id=\"%s\">\n", p->exten);
|
||||
ast_build_string(&t, &maxbytes, "<address uri=\"%s;user=ip\" priority=\"0.800000\">\n", mto);
|
||||
ast_build_string(&t, &maxbytes, "<status status=\"%s\" />\n", (local_state == NOTIFY_OPEN) ? "open" : (local_state == NOTIFY_INUSE) ? "inuse" : "closed");
|
||||
ast_build_string(&t, &maxbytes, "<msnsubstatus substatus=\"%s\" />\n", (local_state == NOTIFY_OPEN) ? "online" : (local_state == NOTIFY_INUSE) ? "onthephone" : "offline");
|
||||
ast_build_string(&t, &maxbytes, "</address>\n</atom>\n</presence>\n");
|
||||
ast_str_append(&tmp, 0,
|
||||
"<?xml version=\"1.0\"?>\n"
|
||||
"<!DOCTYPE presence PUBLIC \"-//IETF//DTD RFCxxxx XPIDF 1.0//EN\" \"xpidf.dtd\">\n"
|
||||
"<presence>\n");
|
||||
ast_str_append(&tmp, 0, "<presentity uri=\"%s;method=SUBSCRIBE\" />\n", mfrom);
|
||||
ast_str_append(&tmp, 0, "<atom id=\"%s\">\n", p->exten);
|
||||
ast_str_append(&tmp, 0, "<address uri=\"%s;user=ip\" priority=\"0.800000\">\n", mto);
|
||||
ast_str_append(&tmp, 0, "<status status=\"%s\" />\n", (local_state == NOTIFY_OPEN) ? "open" : (local_state == NOTIFY_INUSE) ? "inuse" : "closed");
|
||||
ast_str_append(&tmp, 0, "<msnsubstatus substatus=\"%s\" />\n", (local_state == NOTIFY_OPEN) ? "online" : (local_state == NOTIFY_INUSE) ? "onthephone" : "offline");
|
||||
ast_str_append(&tmp, 0, "</address>\n</atom>\n</presence>\n");
|
||||
break;
|
||||
case PIDF_XML: /* Eyebeam supports this format */
|
||||
ast_build_string(&t, &maxbytes, "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
|
||||
ast_build_string(&t, &maxbytes, "<presence xmlns=\"urn:ietf:params:xml:ns:pidf\" \nxmlns:pp=\"urn:ietf:params:xml:ns:pidf:person\"\nxmlns:es=\"urn:ietf:params:xml:ns:pidf:rpid:status:rpid-status\"\nxmlns:ep=\"urn:ietf:params:xml:ns:pidf:rpid:rpid-person\"\nentity=\"%s\">\n", mfrom);
|
||||
ast_build_string(&t, &maxbytes, "<pp:person><status>\n");
|
||||
ast_str_append(&tmp, 0,
|
||||
"<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
|
||||
"<presence xmlns=\"urn:ietf:params:xml:ns:pidf\" \nxmlns:pp=\"urn:ietf:params:xml:ns:pidf:person\"\nxmlns:es=\"urn:ietf:params:xml:ns:pidf:rpid:status:rpid-status\"\nxmlns:ep=\"urn:ietf:params:xml:ns:pidf:rpid:rpid-person\"\nentity=\"%s\">\n", mfrom);
|
||||
ast_str_append(&tmp, 0, "<pp:person><status>\n");
|
||||
if (pidfstate[0] != '-')
|
||||
ast_build_string(&t, &maxbytes, "<ep:activities><ep:%s/></ep:activities>\n", pidfstate);
|
||||
ast_build_string(&t, &maxbytes, "</status></pp:person>\n");
|
||||
ast_build_string(&t, &maxbytes, "<note>%s</note>\n", pidfnote); /* Note */
|
||||
ast_build_string(&t, &maxbytes, "<tuple id=\"%s\">\n", p->exten); /* Tuple start */
|
||||
ast_build_string(&t, &maxbytes, "<contact priority=\"1\">%s</contact>\n", mto);
|
||||
ast_str_append(&tmp, 0, "<ep:activities><ep:%s/></ep:activities>\n", pidfstate);
|
||||
ast_str_append(&tmp, 0, "</status></pp:person>\n");
|
||||
ast_str_append(&tmp, 0, "<note>%s</note>\n", pidfnote); /* Note */
|
||||
ast_str_append(&tmp, 0, "<tuple id=\"%s\">\n", p->exten); /* Tuple start */
|
||||
ast_str_append(&tmp, 0, "<contact priority=\"1\">%s</contact>\n", mto);
|
||||
if (pidfstate[0] == 'b') /* Busy? Still open ... */
|
||||
ast_build_string(&t, &maxbytes, "<status><basic>open</basic></status>\n");
|
||||
ast_str_append(&tmp, 0, "<status><basic>open</basic></status>\n");
|
||||
else
|
||||
ast_build_string(&t, &maxbytes, "<status><basic>%s</basic></status>\n", (local_state != NOTIFY_CLOSED) ? "open" : "closed");
|
||||
ast_build_string(&t, &maxbytes, "</tuple>\n</presence>\n");
|
||||
ast_str_append(&tmp, 0, "<status><basic>%s</basic></status>\n", (local_state != NOTIFY_CLOSED) ? "open" : "closed");
|
||||
ast_str_append(&tmp, 0, "</tuple>\n</presence>\n");
|
||||
break;
|
||||
case DIALOG_INFO_XML: /* SNOM subscribes in this format */
|
||||
ast_build_string(&t, &maxbytes, "<?xml version=\"1.0\"?>\n");
|
||||
ast_build_string(&t, &maxbytes, "<dialog-info xmlns=\"urn:ietf:params:xml:ns:dialog-info\" version=\"%d\" state=\"%s\" entity=\"%s\">\n", p->dialogver++, full ? "full":"partial", mto);
|
||||
ast_str_append(&tmp, 0, "<?xml version=\"1.0\"?>\n");
|
||||
ast_str_append(&tmp, 0, "<dialog-info xmlns=\"urn:ietf:params:xml:ns:dialog-info\" version=\"%d\" state=\"%s\" entity=\"%s\">\n", p->dialogver++, full ? "full":"partial", mto);
|
||||
if ((state & AST_EXTENSION_RINGING) && global_notifyringing)
|
||||
ast_build_string(&t, &maxbytes, "<dialog id=\"%s\" direction=\"recipient\">\n", p->exten);
|
||||
ast_str_append(&tmp, 0, "<dialog id=\"%s\" direction=\"recipient\">\n", p->exten);
|
||||
else
|
||||
ast_build_string(&t, &maxbytes, "<dialog id=\"%s\">\n", p->exten);
|
||||
ast_build_string(&t, &maxbytes, "<state>%s</state>\n", statestring);
|
||||
ast_str_append(&tmp, 0, "<dialog id=\"%s\">\n", p->exten);
|
||||
ast_str_append(&tmp, 0, "<state>%s</state>\n", statestring);
|
||||
if (state == AST_EXTENSION_ONHOLD) {
|
||||
ast_build_string(&t, &maxbytes, "<local>\n<target uri=\"%s\">\n"
|
||||
ast_str_append(&tmp, 0, "<local>\n<target uri=\"%s\">\n"
|
||||
"<param pname=\"+sip.rendering\" pvalue=\"no\">\n"
|
||||
"</target>\n</local>\n", mto);
|
||||
}
|
||||
ast_build_string(&t, &maxbytes, "</dialog>\n</dialog-info>\n");
|
||||
ast_str_append(&tmp, 0, "</dialog>\n</dialog-info>\n");
|
||||
break;
|
||||
case NONE:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (t > tmp + sizeof(tmp))
|
||||
ast_log(LOG_WARNING, "Buffer overflow detected!! (Please file a bug report)\n");
|
||||
|
||||
add_header_contentLength(&req, strlen(tmp));
|
||||
add_line(&req, tmp);
|
||||
add_header_contentLength(&req, tmp->used);
|
||||
add_line(&req, tmp->str);
|
||||
|
||||
return send_request(p, &req, XMIT_RELIABLE, p->ocseq);
|
||||
}
|
||||
|
|
@ -7732,21 +7697,20 @@ static int transmit_state_notify(struct sip_pvt *p, int state, int full, int tim
|
|||
static int transmit_notify_with_mwi(struct sip_pvt *p, int newmsgs, int oldmsgs, char *vmexten)
|
||||
{
|
||||
struct sip_request req;
|
||||
char tmp[500];
|
||||
char *t = tmp;
|
||||
size_t maxbytes = sizeof(tmp);
|
||||
struct ast_str *out = ast_str_alloca(500);
|
||||
|
||||
initreqprep(&req, p, SIP_NOTIFY);
|
||||
add_header(&req, "Event", "message-summary");
|
||||
add_header(&req, "Content-Type", default_notifymime);
|
||||
|
||||
ast_build_string(&t, &maxbytes, "Messages-Waiting: %s\r\n", newmsgs ? "yes" : "no");
|
||||
ast_build_string(&t, &maxbytes, "Message-Account: sip:%s@%s\r\n",
|
||||
ast_str_append(&out, 0, "Messages-Waiting: %s\r\n", newmsgs ? "yes" : "no");
|
||||
ast_str_append(&out, 0, "Message-Account: sip:%s@%s\r\n",
|
||||
S_OR(vmexten, default_vmexten), S_OR(p->fromdomain, ast_inet_ntoa(p->ourip.sin_addr)));
|
||||
/* Cisco has a bug in the SIP stack where it can't accept the
|
||||
(0/0) notification. This can temporarily be disabled in
|
||||
sip.conf with the "buggymwi" option */
|
||||
ast_build_string(&t, &maxbytes, "Voice-Message: %d/%d%s\r\n", newmsgs, oldmsgs, (ast_test_flag(&p->flags[1], SIP_PAGE2_BUGGY_MWI) ? "" : " (0/0)"));
|
||||
ast_str_append(&out, 0, "Voice-Message: %d/%d%s\r\n",
|
||||
newmsgs, oldmsgs, (ast_test_flag(&p->flags[1], SIP_PAGE2_BUGGY_MWI) ? "" : " (0/0)"));
|
||||
|
||||
if (p->subscribed) {
|
||||
if (p->expiry)
|
||||
|
|
@ -7755,11 +7719,8 @@ static int transmit_notify_with_mwi(struct sip_pvt *p, int newmsgs, int oldmsgs,
|
|||
add_header(&req, "Subscription-State", "terminated;reason=timeout");
|
||||
}
|
||||
|
||||
if (t > tmp + sizeof(tmp))
|
||||
ast_log(LOG_WARNING, "Buffer overflow detected!! (Please file a bug report)\n");
|
||||
|
||||
add_header_contentLength(&req, strlen(tmp));
|
||||
add_line(&req, tmp);
|
||||
add_header_contentLength(&req, out->used);
|
||||
add_line(&req, out->str);
|
||||
|
||||
if (!p->initreq.headers)
|
||||
initialize_initreq(p, &req);
|
||||
|
|
|
|||
Reference in New Issue