--- /dev/null
+From 0ed41eb5fd0e4192e1b7dc374f819d17aef3e805 Mon Sep 17 00:00:00 2001
+From: George Joseph <gtjoseph@users.noreply.github.com>
+Date: Tue, 21 Dec 2021 19:32:22 -0700
+Subject: [PATCH] sip_inv: Additional multipart support (#2919) (#2920)
+
+---
+ pjsip/include/pjsip-ua/sip_inv.h | 108 ++++++++++-
+ pjsip/src/pjsip-ua/sip_inv.c | 240 ++++++++++++++++++++-----
+ pjsip/src/test/inv_offer_answer_test.c | 103 ++++++++++-
+ 3 files changed, 394 insertions(+), 57 deletions(-)
+
+--- a/pjsip/include/pjsip-ua/sip_inv.h
++++ b/pjsip/include/pjsip-ua/sip_inv.h
+@@ -451,11 +451,11 @@ struct pjsip_inv_session
+
+
+ /**
+- * This structure represents SDP information in a pjsip_rx_data. Application
+- * retrieve this information by calling #pjsip_rdata_get_sdp_info(). This
++ * This structure represents SDP information in a pjsip_(rx|tx)_data. Application
++ * retrieve this information by calling #pjsip_get_sdp_info(). This
+ * mechanism supports multipart message body.
+ */
+-typedef struct pjsip_rdata_sdp_info
++typedef struct pjsip_sdp_info
+ {
+ /**
+ * Pointer and length of the text body in the incoming message. If
+@@ -475,7 +475,15 @@ typedef struct pjsip_rdata_sdp_info
+ */
+ pjmedia_sdp_session *sdp;
+
+-} pjsip_rdata_sdp_info;
++} pjsip_sdp_info;
++
++/**
++ * For backwards compatibility and completeness,
++ * pjsip_rdata_sdp_info and pjsip_tdata_sdp_info
++ * are typedef'd to pjsip_sdp_info.
++ */
++typedef pjsip_sdp_info pjsip_rdata_sdp_info;
++typedef pjsip_sdp_info pjsip_tdata_sdp_info;
+
+
+ /**
+@@ -1046,6 +1054,44 @@ PJ_DECL(pj_status_t) pjsip_create_sdp_bo
+ pjsip_msg_body **p_body);
+
+ /**
++ * This is a utility function to create a multipart body with the
++ * SIP body as the first part.
++ *
++ * @param pool Pool to allocate memory.
++ * @param sdp SDP session to be put in the SIP message body.
++ * @param p_body Pointer to receive SIP message body containing
++ * the SDP session.
++ *
++ * @return PJ_SUCCESS on success.
++ */
++PJ_DECL(pj_status_t) pjsip_create_multipart_sdp_body( pj_pool_t *pool,
++ pjmedia_sdp_session *sdp,
++ pjsip_msg_body **p_body);
++
++/**
++ * Retrieve SDP information from a message body. Application should
++ * prefer to use this function rather than parsing the SDP manually since
++ * this function supports multipart message body.
++ *
++ * This function will only parse the SDP once, the first time it is called
++ * on the same message. Subsequent call on the same message will just pick
++ * up the already parsed SDP from the message.
++ *
++ * @param pool Pool to allocate memory.
++ * @param body The message body.
++ * @param msg_media_type From the rdata or tdata Content-Type header, if available.
++ * If NULL, the content_type from the body will be used.
++ * @param search_media_type The media type to search for.
++ * If NULL, "application/sdp" will be used.
++ *
++ * @return The SDP info.
++ */
++PJ_DECL(pjsip_sdp_info*) pjsip_get_sdp_info(pj_pool_t *pool,
++ pjsip_msg_body *body,
++ pjsip_media_type *msg_media_type,
++ const pjsip_media_type *search_media_type);
++
++/**
+ * Retrieve SDP information from an incoming message. Application should
+ * prefer to use this function rather than parsing the SDP manually since
+ * this function supports multipart message body.
+@@ -1061,6 +1107,60 @@ PJ_DECL(pj_status_t) pjsip_create_sdp_bo
+ PJ_DECL(pjsip_rdata_sdp_info*) pjsip_rdata_get_sdp_info(pjsip_rx_data *rdata);
+
+
++/**
++ * Retrieve SDP information from an incoming message. Application should
++ * prefer to use this function rather than parsing the SDP manually since
++ * this function supports multipart message body.
++ *
++ * This function will only parse the SDP once, the first time it is called
++ * on the same message. Subsequent call on the same message will just pick
++ * up the already parsed SDP from the message.
++ *
++ * @param rdata The incoming message.
++ * @param search_media_type The SDP media type to search for.
++ * If NULL, "application/sdp" will be used.
++ *
++ * @return The SDP info.
++ */
++PJ_DECL(pjsip_rdata_sdp_info*) pjsip_rdata_get_sdp_info2(
++ pjsip_rx_data *rdata,
++ const pjsip_media_type *search_media_type);
++
++/**
++ * Retrieve SDP information from an outgoing message. Application should
++ * prefer to use this function rather than parsing the SDP manually since
++ * this function supports multipart message body.
++ *
++ * This function will only parse the SDP once, the first time it is called
++ * on the same message. Subsequent call on the same message will just pick
++ * up the already parsed SDP from the message.
++ *
++ * @param tdata The outgoing message.
++ *
++ * @return The SDP info.
++ */
++PJ_DECL(pjsip_tdata_sdp_info*) pjsip_tdata_get_sdp_info(pjsip_tx_data *tdata);
++
++/**
++ * Retrieve SDP information from an outgoing message. Application should
++ * prefer to use this function rather than parsing the SDP manually since
++ * this function supports multipart message body.
++ *
++ * This function will only parse the SDP once, the first time it is called
++ * on the same message. Subsequent call on the same message will just pick
++ * up the already parsed SDP from the message.
++ *
++ * @param tdata The outgoing message.
++ * @param search_media_type The SDP media type to search for.
++ * If NULL, "application/sdp" will be used.
++ *
++ * @return The SDP info.
++ */
++PJ_DECL(pjsip_tdata_sdp_info*) pjsip_tdata_get_sdp_info2(
++ pjsip_tx_data *tdata,
++ const pjsip_media_type *search_media_type);
++
++
+ PJ_END_DECL
+
+ /**
+--- a/pjsip/src/pjsip-ua/sip_inv.c
++++ b/pjsip/src/pjsip-ua/sip_inv.c
+@@ -118,6 +118,8 @@ static pj_status_t handle_timer_response
+ static pj_bool_t inv_check_secure_dlg(pjsip_inv_session *inv,
+ pjsip_event *e);
+
++static int print_sdp(pjsip_msg_body *body, char *buf, pj_size_t len);
++
+ static void (*inv_state_handler[])( pjsip_inv_session *inv, pjsip_event *e) =
+ {
+ &inv_on_state_null,
+@@ -956,66 +958,170 @@ PJ_DEF(pj_status_t) pjsip_inv_create_uac
+ return PJ_SUCCESS;
+ }
+
+-PJ_DEF(pjsip_rdata_sdp_info*) pjsip_rdata_get_sdp_info(pjsip_rx_data *rdata)
+-{
+- pjsip_rdata_sdp_info *sdp_info;
+- pjsip_msg_body *body = rdata->msg_info.msg->body;
+- pjsip_ctype_hdr *ctype_hdr = rdata->msg_info.ctype;
+- pjsip_media_type app_sdp;
++PJ_DEF(pjsip_sdp_info*) pjsip_get_sdp_info(pj_pool_t *pool,
++ pjsip_msg_body *body,
++ pjsip_media_type *msg_media_type,
++ const pjsip_media_type *search_media_type)
++{
++ pjsip_sdp_info *sdp_info;
++ pjsip_media_type search_type;
++ pjsip_media_type multipart_mixed;
++ pjsip_media_type multipart_alternative;
++ pjsip_media_type *msg_type;
++ pj_status_t status;
+
+- sdp_info = (pjsip_rdata_sdp_info*)
+- rdata->endpt_info.mod_data[mod_inv.mod.id];
+- if (sdp_info)
+- return sdp_info;
++ sdp_info = PJ_POOL_ZALLOC_T(pool,
++ pjsip_sdp_info);
+
+- sdp_info = PJ_POOL_ZALLOC_T(rdata->tp_info.pool,
+- pjsip_rdata_sdp_info);
+ PJ_ASSERT_RETURN(mod_inv.mod.id >= 0, sdp_info);
+- rdata->endpt_info.mod_data[mod_inv.mod.id] = sdp_info;
+
+- pjsip_media_type_init2(&app_sdp, "application", "sdp");
++ if (!body) {
++ return sdp_info;
++ }
+
+- if (body && ctype_hdr &&
+- pj_stricmp(&ctype_hdr->media.type, &app_sdp.type)==0 &&
+- pj_stricmp(&ctype_hdr->media.subtype, &app_sdp.subtype)==0)
++ if (msg_media_type) {
++ msg_type = msg_media_type;
++ } else {
++ if (body->content_type.type.slen == 0) {
++ return sdp_info;
++ }
++ msg_type = &body->content_type;
++ }
++
++ if (!search_media_type) {
++ pjsip_media_type_init2(&search_type, "application", "sdp");
++ } else {
++ pj_memcpy(&search_type, search_media_type, sizeof(search_type));
++ }
++
++ pjsip_media_type_init2(&multipart_mixed, "multipart", "mixed");
++ pjsip_media_type_init2(&multipart_alternative, "multipart", "alternative");
++
++ if (pjsip_media_type_cmp(msg_type, &search_type, PJ_FALSE) == 0)
+ {
+- sdp_info->body.ptr = (char*)body->data;
+- sdp_info->body.slen = body->len;
+- } else if (body && ctype_hdr &&
+- pj_stricmp2(&ctype_hdr->media.type, "multipart")==0 &&
+- (pj_stricmp2(&ctype_hdr->media.subtype, "mixed")==0 ||
+- pj_stricmp2(&ctype_hdr->media.subtype, "alternative")==0))
++ /*
++ * If the print_body function is print_sdp, we know that
++ * body->data is a pjmedia_sdp_session object and came from
++ * a tx_data. If not, it's the text representation of the
++ * sdp from an rx_data.
++ */
++ if (body->print_body == print_sdp) {
++ sdp_info->sdp = body->data;
++ } else {
++ sdp_info->body.ptr = (char*)body->data;
++ sdp_info->body.slen = body->len;
++ }
++ } else if (pjsip_media_type_cmp(&multipart_mixed, msg_type, PJ_FALSE) == 0 ||
++ pjsip_media_type_cmp(&multipart_alternative, msg_type, PJ_FALSE) == 0)
+ {
+- pjsip_multipart_part *part;
++ pjsip_multipart_part *part;
++ part = pjsip_multipart_find_part(body, &search_type, NULL);
++ if (part) {
++ if (part->body->print_body == print_sdp) {
++ sdp_info->sdp = part->body->data;
++ } else {
++ sdp_info->body.ptr = (char*)part->body->data;
++ sdp_info->body.slen = part->body->len;
++ }
++ }
++ }
+
+- part = pjsip_multipart_find_part(body, &app_sdp, NULL);
+- if (part) {
+- sdp_info->body.ptr = (char*)part->body->data;
+- sdp_info->body.slen = part->body->len;
+- }
++ /*
++ * If the body was already a pjmedia_sdp_session, we can just
++ * return it. If not and there wasn't a text representation
++ * of the sdp either, we can also just return.
++ */
++ if (sdp_info->sdp || !sdp_info->body.ptr) {
++ return sdp_info;
+ }
+
+- if (sdp_info->body.ptr) {
+- pj_status_t status;
+- status = pjmedia_sdp_parse(rdata->tp_info.pool,
+- sdp_info->body.ptr,
+- sdp_info->body.slen,
+- &sdp_info->sdp);
+- if (status == PJ_SUCCESS)
+- status = pjmedia_sdp_validate2(sdp_info->sdp, PJ_FALSE);
++ /*
++ * If the body was the text representation of teh SDP, we need
++ * to parse it to create a pjmedia_sdp_session object.
++ */
++ status = pjmedia_sdp_parse(pool,
++ sdp_info->body.ptr,
++ sdp_info->body.slen,
++ &sdp_info->sdp);
++ if (status == PJ_SUCCESS)
++ status = pjmedia_sdp_validate2(sdp_info->sdp, PJ_FALSE);
+
+- if (status != PJ_SUCCESS) {
+- sdp_info->sdp = NULL;
+- PJ_PERROR(1,(THIS_FILE, status,
+- "Error parsing/validating SDP body"));
+- }
++ if (status != PJ_SUCCESS) {
++ sdp_info->sdp = NULL;
++ PJ_PERROR(1, (THIS_FILE, status,
++ "Error parsing/validating SDP body"));
++ }
++
++ sdp_info->sdp_err = status;
++
++ return sdp_info;
++}
++
++PJ_DEF(pjsip_rdata_sdp_info*) pjsip_rdata_get_sdp_info2(
++ pjsip_rx_data *rdata,
++ const pjsip_media_type *search_media_type)
++{
++ pjsip_media_type *msg_media_type = NULL;
++ pjsip_rdata_sdp_info *sdp_info;
+
+- sdp_info->sdp_err = status;
++ if (rdata->endpt_info.mod_data[mod_inv.mod.id]) {
++ return (pjsip_rdata_sdp_info *)rdata->endpt_info.mod_data[mod_inv.mod.id];
++ }
++
++ /*
++ * rdata should have a Content-Type header at this point but we'll
++ * make sure.
++ */
++ if (rdata->msg_info.ctype) {
++ msg_media_type = &rdata->msg_info.ctype->media;
+ }
++ sdp_info = pjsip_get_sdp_info(rdata->tp_info.pool,
++ rdata->msg_info.msg->body,
++ msg_media_type,
++ search_media_type);
++ rdata->endpt_info.mod_data[mod_inv.mod.id] = sdp_info;
+
+ return sdp_info;
+ }
+
++PJ_DEF(pjsip_rdata_sdp_info*) pjsip_rdata_get_sdp_info(pjsip_rx_data *rdata)
++{
++ return pjsip_rdata_get_sdp_info2(rdata, NULL);
++}
++
++PJ_DEF(pjsip_tdata_sdp_info*) pjsip_tdata_get_sdp_info2(
++ pjsip_tx_data *tdata,
++ const pjsip_media_type *search_media_type)
++{
++ pjsip_ctype_hdr *ctype_hdr = NULL;
++ pjsip_media_type *msg_media_type = NULL;
++ pjsip_tdata_sdp_info *sdp_info;
++
++ if (tdata->mod_data[mod_inv.mod.id]) {
++ return (pjsip_tdata_sdp_info *)tdata->mod_data[mod_inv.mod.id];
++ }
++ /*
++ * tdata won't usually have a Content-Type header at this point
++ * but we'll check just the same,
++ */
++ ctype_hdr = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_CONTENT_TYPE, NULL);
++ if (ctype_hdr) {
++ msg_media_type = &ctype_hdr->media;
++ }
++
++ sdp_info = pjsip_get_sdp_info(tdata->pool,
++ tdata->msg->body,
++ msg_media_type,
++ search_media_type);
++ tdata->mod_data[mod_inv.mod.id] = sdp_info;
++
++ return sdp_info;
++}
++
++PJ_DEF(pjsip_tdata_sdp_info*) pjsip_tdata_get_sdp_info(pjsip_tx_data *tdata)
++{
++ return pjsip_tdata_get_sdp_info2(tdata, NULL);
++}
+
+ /*
+ * Verify incoming INVITE request.
+@@ -1740,13 +1846,55 @@ PJ_DEF(pj_status_t) pjsip_create_sdp_bod
+ return PJ_SUCCESS;
+ }
+
++static pjsip_multipart_part* create_sdp_part(pj_pool_t *pool, pjmedia_sdp_session *sdp)
++{
++ pjsip_multipart_part *sdp_part;
++ pjsip_media_type media_type;
++
++ pjsip_media_type_init2(&media_type, "application", "sdp");
++
++ sdp_part = pjsip_multipart_create_part(pool);
++ PJ_ASSERT_RETURN(sdp_part != NULL, NULL);
++
++ sdp_part->body = PJ_POOL_ZALLOC_T(pool, pjsip_msg_body);
++ PJ_ASSERT_RETURN(sdp_part->body != NULL, NULL);
++
++ pjsip_media_type_cp(pool, &sdp_part->body->content_type, &media_type);
++
++ sdp_part->body->data = sdp;
++ sdp_part->body->clone_data = clone_sdp;
++ sdp_part->body->print_body = print_sdp;
++
++ return sdp_part;
++}
++
++PJ_DEF(pj_status_t) pjsip_create_multipart_sdp_body(pj_pool_t *pool,
++ pjmedia_sdp_session *sdp,
++ pjsip_msg_body **p_body)
++{
++ pjsip_media_type media_type;
++ pjsip_msg_body *multipart;
++ pjsip_multipart_part *sdp_part;
++
++ pjsip_media_type_init2(&media_type, "multipart", "mixed");
++ multipart = pjsip_multipart_create(pool, &media_type, NULL);
++ PJ_ASSERT_RETURN(multipart != NULL, PJ_ENOMEM);
++
++ sdp_part = create_sdp_part(pool, sdp);
++ PJ_ASSERT_RETURN(sdp_part != NULL, PJ_ENOMEM);
++ pjsip_multipart_add_part(pool, multipart, sdp_part);
++ *p_body = multipart;
++
++ return PJ_SUCCESS;
++}
++
+ static pjsip_msg_body *create_sdp_body(pj_pool_t *pool,
+ const pjmedia_sdp_session *c_sdp)
+ {
+ pjsip_msg_body *body;
+ pj_status_t status;
+
+- status = pjsip_create_sdp_body(pool,
++ status = pjsip_create_sdp_body(pool,
+ pjmedia_sdp_session_clone(pool, c_sdp),
+ &body);
+
+@@ -2069,6 +2217,7 @@ static pj_status_t inv_check_sdp_in_inco
+ )
+ )
+ {
++ pjsip_sdp_info *tdata_sdp_info;
+ const pjmedia_sdp_session *reoffer_sdp = NULL;
+
+ PJ_LOG(4,(inv->obj_name, "Received %s response "
+@@ -2077,14 +2226,15 @@ static pj_status_t inv_check_sdp_in_inco
+ (st_code/10==18? "early" : "final" )));
+
+ /* Retrieve original SDP offer from INVITE request */
+- reoffer_sdp = (const pjmedia_sdp_session*)
+- tsx->last_tx->msg->body->data;
++ tdata_sdp_info = pjsip_tdata_get_sdp_info(tsx->last_tx);
++ reoffer_sdp = tdata_sdp_info->sdp;
+
+ /* Feed the original offer to negotiator */
+ status = pjmedia_sdp_neg_modify_local_offer2(inv->pool_prov,
+ inv->neg,
+ inv->sdp_neg_flags,
+ reoffer_sdp);
++
+ if (status != PJ_SUCCESS) {
+ PJ_LOG(1,(inv->obj_name, "Error updating local offer for "
+ "forked 2xx/18x response (err=%d)", status));
+--- a/pjsip/src/test/inv_offer_answer_test.c
++++ b/pjsip/src/test/inv_offer_answer_test.c
+@@ -137,6 +137,7 @@ typedef struct inv_test_param_t
+ pj_bool_t need_established;
+ unsigned count;
+ oa_t oa[4];
++ pj_bool_t multipart_body;
+ } inv_test_param_t;
+
+ typedef struct inv_test_t
+@@ -257,6 +258,17 @@ static void on_media_update(pjsip_inv_se
+ }
+ }
+
++ /* Special handling for standard offer/answer */
++ if (inv_test.param.count == 1 &&
++ inv_test.param.oa[0] == OFFERER_UAC &&
++ inv_test.param.need_established)
++ {
++ jobs[job_cnt].type = ESTABLISH_CALL;
++ jobs[job_cnt].who = PJSIP_ROLE_UAS;
++ job_cnt++;
++ TRACE_((THIS_FILE, " C+++"));
++ }
++
+ pj_assert(job_cnt <= PJ_ARRAY_SIZE(jobs));
+ }
+ }
+@@ -333,6 +345,15 @@ static pj_bool_t on_rx_request(pjsip_rx_
+ NULL, &tdata);
+ pj_assert(status == PJ_SUCCESS);
+
++ /* Use multipart body, if configured */
++ if (sdp && inv_test.param.multipart_body) {
++ status = pjsip_create_multipart_sdp_body(
++ tdata->pool,
++ pjmedia_sdp_session_clone(tdata->pool, sdp),
++ &tdata->msg->body);
++ }
++ pj_assert(status == PJ_SUCCESS);
++
+ status = pjsip_inv_send_msg(inv_test.uas, tdata);
+ pj_assert(status == PJ_SUCCESS);
+
+@@ -426,6 +447,7 @@ static int perform_test(inv_test_param_t
+ sdp = NULL;
+
+ status = pjsip_inv_create_uac(dlg, sdp, inv_test.param.inv_option, &inv_test.uac);
++ //inv_test.uac->create_multipart = param->multipart_body;
+ PJ_ASSERT_RETURN(status==PJ_SUCCESS, -20);
+
+ TRACE_((THIS_FILE, " Sending INVITE %s offer", (sdp ? "with" : "without")));
+@@ -436,8 +458,17 @@ static int perform_test(inv_test_param_t
+ status = pjsip_inv_invite(inv_test.uac, &tdata);
+ PJ_ASSERT_RETURN(status==PJ_SUCCESS, -30);
+
++ /* Use multipart body, if configured */
++ if (sdp && param->multipart_body) {
++ status = pjsip_create_multipart_sdp_body(
++ tdata->pool,
++ pjmedia_sdp_session_clone(tdata->pool, sdp),
++ &tdata->msg->body);
++ }
++ PJ_ASSERT_RETURN(status==PJ_SUCCESS, -40);
++
+ status = pjsip_inv_send_msg(inv_test.uac, tdata);
+- PJ_ASSERT_RETURN(status==PJ_SUCCESS, -30);
++ PJ_ASSERT_RETURN(status==PJ_SUCCESS, -50);
+
+ /*
+ * Wait until test completes
+@@ -525,13 +556,14 @@ static inv_test_param_t test_params[] =
+ 200/INVITE (answer) <--
+ ACK -->
+ */
+-#if 0
++#if 1
+ {
+ "Standard INVITE with offer",
+ 0,
+ PJ_TRUE,
+ 1,
+- { OFFERER_UAC }
++ { OFFERER_UAC },
++ PJ_FALSE
+ },
+
+ {
+@@ -539,7 +571,25 @@ static inv_test_param_t test_params[] =
+ PJSIP_INV_REQUIRE_100REL,
+ PJ_TRUE,
+ 1,
+- { OFFERER_UAC }
++ { OFFERER_UAC },
++ PJ_FALSE
++ },
++ {
++ "Standard INVITE with offer, with Multipart",
++ 0,
++ PJ_TRUE,
++ 1,
++ { OFFERER_UAC },
++ PJ_TRUE
++ },
++
++ {
++ "Standard INVITE with offer, with 100rel, with Multipart",
++ PJSIP_INV_REQUIRE_100REL,
++ PJ_TRUE,
++ 1,
++ { OFFERER_UAC },
++ PJ_TRUE
+ },
+ #endif
+
+@@ -555,7 +605,8 @@ static inv_test_param_t test_params[] =
+ 0,
+ PJ_TRUE,
+ 1,
+- { OFFERER_UAS }
++ { OFFERER_UAS },
++ PJ_FALSE
+ },
+
+ {
+@@ -563,7 +614,25 @@ static inv_test_param_t test_params[] =
+ PJSIP_INV_REQUIRE_100REL,
+ PJ_TRUE,
+ 1,
+- { OFFERER_UAS }
++ { OFFERER_UAS },
++ PJ_FALSE
++ },
++ {
++ "INVITE with no offer, with Multipart",
++ 0,
++ PJ_TRUE,
++ 1,
++ { OFFERER_UAS },
++ PJ_TRUE
++ },
++
++ {
++ "INVITE with no offer, with 100rel, with Multipart",
++ PJSIP_INV_REQUIRE_100REL,
++ PJ_TRUE,
++ 1,
++ { OFFERER_UAS },
++ PJ_TRUE
+ },
+ #endif
+
+@@ -584,14 +653,24 @@ static inv_test_param_t test_params[] =
+ 0,
+ PJ_TRUE,
+ 2,
+- { OFFERER_UAC, OFFERER_UAC }
++ { OFFERER_UAC, OFFERER_UAC },
++ PJ_FALSE
++ },
++ {
++ "INVITE and UPDATE by UAC, with Multipart",
++ 0,
++ PJ_TRUE,
++ 2,
++ { OFFERER_UAC, OFFERER_UAC },
++ PJ_TRUE
+ },
+ {
+ "INVITE and UPDATE by UAC, with 100rel",
+ PJSIP_INV_REQUIRE_100REL,
+ PJ_TRUE,
+ 2,
+- { OFFERER_UAC, OFFERER_UAC }
++ { OFFERER_UAC, OFFERER_UAC },
++ PJ_FALSE
+ },
+ #endif
+
+@@ -617,6 +696,14 @@ static inv_test_param_t test_params[] =
+ 4,
+ { OFFERER_UAC, OFFERER_UAS, OFFERER_UAC, OFFERER_UAS }
+ },
++ {
++ "INVITE and many UPDATE by UAC and UAS, with Multipart",
++ 0,
++ PJ_TRUE,
++ 4,
++ { OFFERER_UAC, OFFERER_UAS, OFFERER_UAC, OFFERER_UAS },
++ PJ_TRUE
++ },
+
+ };
+
--- /dev/null
+From 3faf1d2b4da553bbaee04f9a13a5d084b381e5fb Mon Sep 17 00:00:00 2001
+From: sauwming <ming@teluu.com>
+Date: Tue, 4 Jan 2022 15:28:49 +0800
+Subject: [PATCH] Fix incorrect unescaping of tokens during parsing (#2933)
+
+---
+ pjsip/src/pjsip/sip_parser.c | 29 +++++++++++++++++++++++++----
+ pjsip/src/test/msg_test.c | 6 +++---
+ 2 files changed, 28 insertions(+), 7 deletions(-)
+
+--- a/pjsip/src/pjsip/sip_parser.c
++++ b/pjsip/src/pjsip/sip_parser.c
+@@ -378,17 +378,23 @@ static pj_status_t init_parser()
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+ pj_cis_add_str( &pconst.pjsip_TOKEN_SPEC, TOKEN);
+
++ /* Token is allowed to have '%' so we do not need this. */
++ /*
+ status = pj_cis_dup(&pconst.pjsip_TOKEN_SPEC_ESC, &pconst.pjsip_TOKEN_SPEC);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+ pj_cis_del_str(&pconst.pjsip_TOKEN_SPEC_ESC, "%");
++ */
+
+ status = pj_cis_dup(&pconst.pjsip_VIA_PARAM_SPEC, &pconst.pjsip_TOKEN_SPEC);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+ pj_cis_add_str(&pconst.pjsip_VIA_PARAM_SPEC, "[:]");
+
++ /* Token is allowed to have '%' */
++ /*
+ status = pj_cis_dup(&pconst.pjsip_VIA_PARAM_SPEC_ESC, &pconst.pjsip_TOKEN_SPEC_ESC);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+ pj_cis_add_str(&pconst.pjsip_VIA_PARAM_SPEC_ESC, "[:]");
++ */
+
+ status = pj_cis_dup(&pconst.pjsip_HOST_SPEC, &pconst.pjsip_ALNUM_SPEC);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+@@ -1210,7 +1216,11 @@ static void parse_param_imp( pj_scanner
+ unsigned option)
+ {
+ /* pname */
+- parser_get_and_unescape(scanner, pool, spec, esc_spec, pname);
++ if (!esc_spec) {
++ pj_scan_get(scanner, spec, pname);
++ } else {
++ parser_get_and_unescape(scanner, pool, spec, esc_spec, pname);
++ }
+
+ /* init pvalue */
+ pvalue->ptr = NULL;
+@@ -1240,7 +1250,12 @@ static void parse_param_imp( pj_scanner
+ // pj_scan_get_until_ch(scanner, ']', pvalue);
+ // pj_scan_get_char(scanner);
+ } else if(pj_cis_match(spec, *scanner->curptr)) {
+- parser_get_and_unescape(scanner, pool, spec, esc_spec, pvalue);
++ if (!esc_spec) {
++ pj_scan_get(scanner, spec, pvalue);
++ } else {
++ parser_get_and_unescape(scanner, pool, spec, esc_spec,
++ pvalue);
++ }
+ }
+ }
+ }
+@@ -1252,7 +1267,10 @@ PJ_DEF(void) pjsip_parse_param_imp(pj_sc
+ unsigned option)
+ {
+ parse_param_imp(scanner, pool, pname, pvalue, &pconst.pjsip_TOKEN_SPEC,
+- &pconst.pjsip_TOKEN_SPEC_ESC, option);
++ // Token does not need to be unescaped.
++ // Refer to PR #2933.
++ // &pconst.pjsip_TOKEN_SPEC_ESC,
++ NULL, option);
+ }
+
+
+@@ -2168,7 +2186,10 @@ static void int_parse_via_param( pjsip_v
+ pj_scan_get_char(scanner);
+ parse_param_imp(scanner, pool, &pname, &pvalue,
+ &pconst.pjsip_VIA_PARAM_SPEC,
+- &pconst.pjsip_VIA_PARAM_SPEC_ESC,
++ // Token does not need to be unescaped.
++ // Refer to PR #2933.
++ // &pconst.pjsip_VIA_PARAM_SPEC_ESC,
++ NULL,
+ 0);
+
+ if (!parser_stricmp(pname, pconst.pjsip_BRANCH_STR) && pvalue.slen) {
+--- a/pjsip/src/test/msg_test.c
++++ b/pjsip/src/test/msg_test.c
+@@ -953,7 +953,7 @@ static int hdr_test_subject_utf(pjsip_hd
+
+
+ #define GENERIC_PARAM "p0=a;p1=\"ab:;cd\";p2=ab%3acd;p3"
+-#define GENERIC_PARAM_PARSED "p0=a;p1=\"ab:;cd\";p2=ab:cd;p3"
++#define GENERIC_PARAM_PARSED "p0=a;p1=\"ab:;cd\";p2=ab%3acd;p3"
+ #define PARAM_CHAR "][/:&+$"
+ #define SIMPLE_ADDR_SPEC "sip:host"
+ #define ADDR_SPEC SIMPLE_ADDR_SPEC ";"PARAM_CHAR"="PARAM_CHAR ";p1=\";\""
+@@ -1401,7 +1401,7 @@ static int generic_param_test(pjsip_para
+ param = param->next;
+ if (pj_strcmp2(¶m->name, "p2"))
+ return -956;
+- if (pj_strcmp2(¶m->value, "ab:cd"))
++ if (pj_strcmp2(¶m->value, "ab%3acd"))
+ return -957;
+
+ param = param->next;
+@@ -1621,7 +1621,7 @@ static int hdr_test_content_type(pjsip_h
+ prm = prm->next;
+ if (prm == &hdr->media.param) return -1960;
+ if (pj_strcmp2(&prm->name, "p2")) return -1961;
+- if (pj_strcmp2(&prm->value, "ab:cd")) return -1962;
++ if (pj_strcmp2(&prm->value, "ab%3acd")) return -1962;
+
+ prm = prm->next;
+ if (prm == &hdr->media.param) return -1970;
--- /dev/null
+From 7e3dfd8a15fd0f98dbf0e04d2d7a5bded90ee401 Mon Sep 17 00:00:00 2001
+From: George Joseph <gjoseph@sangoma.com>
+Date: Tue, 11 Jan 2022 09:27:23 -0700
+Subject: [PATCH] Create generic pjsip_hdr_find functions
+
+pjsip_msg_find_hdr(), pjsip_msg_find_hdr_by_name(), and
+pjsip_msg_find_hdr_by_names() require a pjsip_msg to be passed in
+so if you need to search a header list that's not in a pjsip_msg,
+you have to do it yourself. This commit adds generic versions of
+those 3 functions that take in the actual header list head instead
+of a pjsip_msg so if you need to search a list of headers in
+something like a pjsip_multipart_part, you can do so easily.
+---
+ pjsip/include/pjsip/sip_msg.h | 53 +++++++++++++++++++++++++++++++++++
+ pjsip/src/pjsip/sip_msg.c | 51 +++++++++++++++++++++++----------
+ 2 files changed, 89 insertions(+), 15 deletions(-)
+
+--- a/pjsip/include/pjsip/sip_msg.h
++++ b/pjsip/include/pjsip/sip_msg.h
+@@ -363,6 +363,59 @@ PJ_DECL(void*) pjsip_hdr_shallow_clone(
+ PJ_DECL(int) pjsip_hdr_print_on( void *hdr, char *buf, pj_size_t len);
+
+ /**
++ * Find a header in a header list by the header type.
++ *
++ * @param hdr_list The "head" of the header list.
++ * @param type The header type to find.
++ * @param start The first header field where the search should begin.
++ * If NULL is specified, then the search will begin from the
++ * first header, otherwise the search will begin at the
++ * specified header.
++ *
++ * @return The header field, or NULL if no header with the specified
++ * type is found.
++ */
++PJ_DECL(void*) pjsip_hdr_find( const void *hdr_list,
++ pjsip_hdr_e type,
++ const void *start);
++
++/**
++ * Find a header in a header list by its name.
++ *
++ * @param hdr_list The "head" of the header list.
++ * @param name The header name to find.
++ * @param start The first header field where the search should begin.
++ * If NULL is specified, then the search will begin from the
++ * first header, otherwise the search will begin at the
++ * specified header.
++ *
++ * @return The header field, or NULL if no header with the specified
++ * type is found.
++ */
++PJ_DECL(void*) pjsip_hdr_find_by_name( const void *hdr_list,
++ const pj_str_t *name,
++ const void *start);
++
++/**
++ * Find a header in a header list by its name and short name version.
++ *
++ * @param hdr_list The "head" of the header list.
++ * @param name The header name to find.
++ * @param sname The short name version of the header name.
++ * @param start The first header field where the search should begin.
++ * If NULL is specified, then the search will begin from the
++ * first header, otherwise the search will begin at the
++ * specified header.
++ *
++ * @return The header field, or NULL if no header with the specified
++ * type is found.
++ */
++PJ_DECL(void*) pjsip_hdr_find_by_names( const void *hdr_list,
++ const pj_str_t *name,
++ const pj_str_t *sname,
++ const void *start);
++
++/**
+ * @}
+ */
+
+--- a/pjsip/src/pjsip/sip_msg.c
++++ b/pjsip/src/pjsip/sip_msg.c
+@@ -334,13 +334,13 @@ PJ_DEF(pjsip_msg*) pjsip_msg_clone( pj_p
+ return dst;
+ }
+
+-PJ_DEF(void*) pjsip_msg_find_hdr( const pjsip_msg *msg,
+- pjsip_hdr_e hdr_type, const void *start)
++PJ_DEF(void*) pjsip_hdr_find( const void *hdr_list,
++ pjsip_hdr_e hdr_type, const void *start)
+ {
+- const pjsip_hdr *hdr=(const pjsip_hdr*) start, *end=&msg->hdr;
++ const pjsip_hdr *hdr=(const pjsip_hdr*) start, *end=hdr_list;
+
+ if (hdr == NULL) {
+- hdr = msg->hdr.next;
++ hdr = end->next;
+ }
+ for (; hdr!=end; hdr = hdr->next) {
+ if (hdr->type == hdr_type)
+@@ -349,14 +349,14 @@ PJ_DEF(void*) pjsip_msg_find_hdr( const
+ return NULL;
+ }
+
+-PJ_DEF(void*) pjsip_msg_find_hdr_by_name( const pjsip_msg *msg,
+- const pj_str_t *name,
+- const void *start)
++PJ_DEF(void*) pjsip_hdr_find_by_name( const void *hdr_list,
++ const pj_str_t *name,
++ const void *start)
+ {
+- const pjsip_hdr *hdr=(const pjsip_hdr*)start, *end=&msg->hdr;
++ const pjsip_hdr *hdr=(const pjsip_hdr*) start, *end=hdr_list;
+
+ if (hdr == NULL) {
+- hdr = msg->hdr.next;
++ hdr = end->next;
+ }
+ for (; hdr!=end; hdr = hdr->next) {
+ if (pj_stricmp(&hdr->name, name) == 0)
+@@ -365,15 +365,15 @@ PJ_DEF(void*) pjsip_msg_find_hdr_by_nam
+ return NULL;
+ }
+
+-PJ_DEF(void*) pjsip_msg_find_hdr_by_names( const pjsip_msg *msg,
+- const pj_str_t *name,
+- const pj_str_t *sname,
+- const void *start)
++PJ_DEF(void*) pjsip_hdr_find_by_names( const void *hdr_list,
++ const pj_str_t *name,
++ const pj_str_t *sname,
++ const void *start)
+ {
+- const pjsip_hdr *hdr=(const pjsip_hdr*)start, *end=&msg->hdr;
++ const pjsip_hdr *hdr=(const pjsip_hdr*) start, *end=hdr_list;
+
+ if (hdr == NULL) {
+- hdr = msg->hdr.next;
++ hdr = end->next;
+ }
+ for (; hdr!=end; hdr = hdr->next) {
+ if (pj_stricmp(&hdr->name, name) == 0)
+@@ -384,6 +384,27 @@ PJ_DEF(void*) pjsip_msg_find_hdr_by_nam
+ return NULL;
+ }
+
++PJ_DEF(void*) pjsip_msg_find_hdr( const pjsip_msg *msg,
++ pjsip_hdr_e hdr_type, const void *start)
++{
++ return pjsip_hdr_find(&msg->hdr, hdr_type, start);
++}
++
++PJ_DEF(void*) pjsip_msg_find_hdr_by_name( const pjsip_msg *msg,
++ const pj_str_t *name,
++ const void *start)
++{
++ return pjsip_hdr_find_by_name(&msg->hdr, name, start);
++}
++
++PJ_DEF(void*) pjsip_msg_find_hdr_by_names( const pjsip_msg *msg,
++ const pj_str_t *name,
++ const pj_str_t *sname,
++ const void *start)
++{
++ return pjsip_hdr_find_by_names(&msg->hdr, name, sname, start);
++}
++
+ PJ_DEF(void*) pjsip_msg_find_remove_hdr( pjsip_msg *msg,
+ pjsip_hdr_e hdr_type, void *start)
+ {
--- /dev/null
+From b7ecff22e77887626fd8e8608c4dd73bc7b7366f Mon Sep 17 00:00:00 2001
+From: George Joseph <gjoseph@sangoma.com>
+Date: Tue, 18 Jan 2022 06:14:31 -0700
+Subject: [PATCH] Additional multipart improvements
+
+Added the following APIs:
+pjsip_multipart_find_part_by_header()
+pjsip_multipart_find_part_by_header_str()
+pjsip_multipart_find_part_by_cid_str()
+pjsip_multipart_find_part_by_cid_uri()
+---
+ pjsip/include/pjsip/sip_multipart.h | 83 ++++++++++
+ pjsip/src/pjsip/sip_multipart.c | 223 +++++++++++++++++++++++++++
+ pjsip/src/test/multipart_test.c | 225 +++++++++++++++++++++++++++-
+ 3 files changed, 530 insertions(+), 1 deletion(-)
+
+--- a/pjsip/include/pjsip/sip_multipart.h
++++ b/pjsip/include/pjsip/sip_multipart.h
+@@ -154,6 +154,89 @@ pjsip_multipart_find_part( const pjsip_m
+ const pjsip_multipart_part *start);
+
+ /**
++ * Find a body inside multipart bodies which has a header matching the
++ * supplied one. Most useful for finding a part with a specific Content-ID.
++ *
++ * @param pool Memory pool to use for temp space.
++ * @param mp The multipart body.
++ * @param search_hdr Header to search for.
++ * @param start If specified, the search will begin at
++ * start->next part. Otherwise it will begin at
++ * the first part in the multipart bodies.
++ *
++ * @return The first part which has a header matching the
++ * specified one, or NULL if not found.
++ */
++PJ_DECL(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_header(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ void *search_hdr,
++ const pjsip_multipart_part *start);
++
++/**
++ * Find a body inside multipart bodies which has a header matching the
++ * supplied name and value. Most useful for finding a part with a specific
++ * Content-ID.
++ *
++ * @param pool Memory pool to use for temp space.
++ * @param mp The multipart body.
++ * @param hdr_name Header name to search for.
++ * @param hdr_value Header value search for.
++ * @param start If specified, the search will begin at
++ * start->next part. Otherwise it will begin at
++ * the first part in the multipart bodies.
++ *
++ * @return The first part which has a header matching the
++ * specified one, or NULL if not found.
++ */
++PJ_DECL(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_header_str(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ const pj_str_t *hdr_name,
++ const pj_str_t *hdr_value,
++ const pjsip_multipart_part *start);
++
++
++
++/**
++ * Find a body inside multipart bodies which has a Content-ID value matching the
++ * supplied "cid" URI in pj_str form. The "cid:" scheme will be assumed if the
++ * URL doesn't start with it. Enclosing angle brackets will also be handled
++ * correctly if they exist.
++ *
++ * @see RFC2392 Content-ID and Message-ID Uniform Resource Locators
++ *
++ * @param pool Memory pool to use for temp space.
++ * @param mp The multipart body.
++ * @param cid The "cid" URI to search for in pj_str form.
++ *
++ * @return The first part which has a Content-ID header matching the
++ * specified "cid" URI. or NULL if not found.
++ */
++PJ_DECL(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_cid_str(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ pj_str_t *cid);
++
++/**
++ * Find a body inside multipart bodies which has a Content-ID value matching the
++ * supplied "cid" URI.
++ *
++ * @see RFC2392 Content-ID and Message-ID Uniform Resource Locators
++ *
++ * @param pool Memory pool to use for temp space.
++ * @param mp The multipart body.
++ * @param cid The "cid" URI to search for.
++ *
++ * @return The first part which had a Content-ID header matching the
++ * specified "cid" URI. or NULL if not found.
++ */
++PJ_DECL(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_cid_uri(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ pjsip_other_uri *cid_uri);
++
++/**
+ * Parse multipart message.
+ *
+ * @param pool Memory pool.
+--- a/pjsip/src/pjsip/sip_multipart.c
++++ b/pjsip/src/pjsip/sip_multipart.c
+@@ -19,6 +19,7 @@
+ #include <pjsip/sip_multipart.h>
+ #include <pjsip/sip_parser.h>
+ #include <pjlib-util/scanner.h>
++#include <pjlib-util/string.h>
+ #include <pj/assert.h>
+ #include <pj/ctype.h>
+ #include <pj/errno.h>
+@@ -416,6 +417,220 @@ pjsip_multipart_find_part( const pjsip_m
+ return NULL;
+ }
+
++/*
++ * Find a body inside multipart bodies which has the header and value.
++ */
++PJ_DEF(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_header_str(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ const pj_str_t *hdr_name,
++ const pj_str_t *hdr_value,
++ const pjsip_multipart_part *start)
++{
++ struct multipart_data *m_data;
++ pjsip_multipart_part *part;
++ pjsip_hdr *found_hdr;
++ pj_str_t found_hdr_str;
++ pj_str_t found_hdr_value;
++ pj_size_t expected_hdr_slen;
++ pj_size_t buf_size;
++ int hdr_name_len;
++#define REASONABLE_PADDING 32
++#define SEPARATOR_LEN 2
++ /* Must specify mandatory params */
++ PJ_ASSERT_RETURN(mp && hdr_name && hdr_value, NULL);
++
++ /* mp must really point to an actual multipart msg body */
++ PJ_ASSERT_RETURN(mp->print_body==&multipart_print_body, NULL);
++
++ /*
++ * We'll need to "print" each header we find to test it but
++ * allocating a buffer of PJSIP_MAX_URL_SIZE is overkill.
++ * Instead, we'll allocate one large enough to hold the search
++ * header name, the ": " separator, the search hdr value, and
++ * the NULL terminator. If we can't print the found header
++ * into that buffer then it can't be a match.
++ *
++ * Some header print functions such as generic_int require enough
++ * space to print the maximum possible header length so we'll
++ * add a reasonable amount to the print buffer size.
++ */
++ expected_hdr_slen = hdr_name->slen + SEPARATOR_LEN + hdr_value->slen;
++ buf_size = expected_hdr_slen + REASONABLE_PADDING;
++ found_hdr_str.ptr = pj_pool_alloc(pool, buf_size);
++ found_hdr_str.slen = 0;
++ hdr_name_len = hdr_name->slen + SEPARATOR_LEN;
++
++ m_data = (struct multipart_data*)mp->data;
++
++ if (start)
++ part = start->next;
++ else
++ part = m_data->part_head.next;
++
++ while (part != &m_data->part_head) {
++ found_hdr = NULL;
++ while ((found_hdr = pjsip_hdr_find_by_name(&part->hdr, hdr_name,
++ (found_hdr ? found_hdr->next : NULL))) != NULL) {
++
++ found_hdr_str.slen = pjsip_hdr_print_on((void*) found_hdr, found_hdr_str.ptr, buf_size);
++ /*
++ * If the buffer was too small (slen = -1) or the result wasn't
++ * the same length as the search header, it can't be a match.
++ */
++ if (found_hdr_str.slen != expected_hdr_slen) {
++ continue;
++ }
++ /*
++ * Set the value overlay to start at the found header value...
++ */
++ found_hdr_value.ptr = found_hdr_str.ptr + hdr_name_len;
++ found_hdr_value.slen = found_hdr_str.slen - hdr_name_len;
++ /* ...and compare it to the supplied header value. */
++ if (pj_strcmp(hdr_value, &found_hdr_value) == 0) {
++ return part;
++ }
++ }
++ part = part->next;
++ }
++ return NULL;
++#undef SEPARATOR_LEN
++#undef REASONABLE_PADDING
++}
++
++PJ_DEF(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_header(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ void *search_for,
++ const pjsip_multipart_part *start)
++{
++ struct multipart_data *m_data;
++ pjsip_hdr *search_hdr = search_for;
++ pj_str_t search_buf;
++
++ /* Must specify mandatory params */
++ PJ_ASSERT_RETURN(mp && search_hdr, NULL);
++
++ /* mp must really point to an actual multipart msg body */
++ PJ_ASSERT_RETURN(mp->print_body==&multipart_print_body, NULL);
++
++ /*
++ * Unfortunately, there isn't enough information to determine
++ * the maximum printed size of search_hdr at this point so we
++ * have to allocate a reasonable max.
++ */
++ search_buf.ptr = pj_pool_alloc(pool, PJSIP_MAX_URL_SIZE);
++ search_buf.slen = pjsip_hdr_print_on(search_hdr, search_buf.ptr, PJSIP_MAX_URL_SIZE - 1);
++ if (search_buf.slen <= 0) {
++ return NULL;
++ }
++ /*
++ * Set the header value to start after the header name plus the ":", then
++ * strip leading and trailing whitespace.
++ */
++ search_buf.ptr += (search_hdr->name.slen + 1);
++ search_buf.slen -= (search_hdr->name.slen + 1);
++ pj_strtrim(&search_buf);
++
++ return pjsip_multipart_find_part_by_header_str(pool, mp, &search_hdr->name, &search_buf, start);
++}
++
++/*
++ * Convert a Content-ID URI to it's corresponding header value.
++ * RFC2392 says...
++ * A "cid" URL is converted to the corresponding Content-ID message
++ * header by removing the "cid:" prefix, converting the % encoded
++ * character(s) to their equivalent US-ASCII characters, and enclosing
++ * the remaining parts with an angle bracket pair, "<" and ">".
++ *
++ * This implementation will accept URIs with or without the "cid:"
++ * scheme and optional angle brackets.
++ */
++static pj_str_t cid_uri_to_hdr_value(pj_pool_t *pool, pj_str_t *cid_uri)
++{
++ pj_size_t cid_len = pj_strlen(cid_uri);
++ pj_size_t alloc_len = cid_len + 2 /* for the leading and trailing angle brackets */;
++ pj_str_t uri_overlay;
++ pj_str_t cid_hdr;
++ pj_str_t hdr_overlay;
++
++ pj_strassign(&uri_overlay, cid_uri);
++ /* If the URI is already enclosed in angle brackets, remove them. */
++ if (uri_overlay.ptr[0] == '<') {
++ uri_overlay.ptr++;
++ uri_overlay.slen -= 2;
++ }
++ /* If the URI starts with the "cid:" scheme, skip over it. */
++ if (pj_strncmp2(&uri_overlay, "cid:", 4) == 0) {
++ uri_overlay.ptr += 4;
++ uri_overlay.slen -= 4;
++ }
++ /* Start building */
++ cid_hdr.ptr = pj_pool_alloc(pool, alloc_len);
++ cid_hdr.ptr[0] = '<';
++ cid_hdr.slen = 1;
++ hdr_overlay.ptr = cid_hdr.ptr + 1;
++ hdr_overlay.slen = 0;
++ pj_strcpy_unescape(&hdr_overlay, &uri_overlay);
++ cid_hdr.slen += hdr_overlay.slen;
++ cid_hdr.ptr[cid_hdr.slen] = '>';
++ cid_hdr.slen++;
++
++ return cid_hdr;
++}
++
++PJ_DEF(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_cid_str(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ pj_str_t *cid)
++{
++ struct multipart_data *m_data;
++ pjsip_multipart_part *part;
++ pjsip_generic_string_hdr *found_hdr;
++ pj_str_t found_hdr_value;
++ static pj_str_t hdr_name = { "Content-ID", 10};
++ pj_str_t hdr_value;
++
++ PJ_ASSERT_RETURN(pool && mp && cid && (pj_strlen(cid) > 0), NULL);
++
++ hdr_value = cid_uri_to_hdr_value(pool, cid);
++ if (pj_strlen(&hdr_value) == 0) {
++ return NULL;
++ }
++
++ m_data = (struct multipart_data*)mp->data;
++ part = m_data->part_head.next;
++
++ while (part != &m_data->part_head) {
++ found_hdr = NULL;
++ while ((found_hdr = pjsip_hdr_find_by_name(&part->hdr, &hdr_name,
++ (found_hdr ? found_hdr->next : NULL))) != NULL) {
++ if (pj_strcmp(&hdr_value, &found_hdr->hvalue) == 0) {
++ return part;
++ }
++ }
++ part = part->next;
++ }
++ return NULL;
++}
++
++PJ_DEF(pjsip_multipart_part*)
++pjsip_multipart_find_part_by_cid_uri(pj_pool_t *pool,
++ const pjsip_msg_body *mp,
++ pjsip_other_uri *cid_uri)
++{
++ PJ_ASSERT_RETURN(pool && mp && cid_uri, NULL);
++
++ if (pj_strcmp2(&cid_uri->scheme, "cid") != 0) {
++ return NULL;
++ }
++ /*
++ * We only need to pass the URI content so we
++ * can do that directly.
++ */
++ return pjsip_multipart_find_part_by_cid_str(pool, mp, &cid_uri->content);
++}
++
+ /* Parse a multipart part. "pct" is parent content-type */
+ static pjsip_multipart_part *parse_multipart_part(pj_pool_t *pool,
+ char *start,
+@@ -584,6 +799,7 @@ PJ_DEF(pjsip_msg_body*) pjsip_multipart_
+ (int)boundary.slen, boundary.ptr));
+ }
+
++
+ /* Build the delimiter:
+ * delimiter = "--" boundary
+ */
+@@ -630,6 +846,8 @@ PJ_DEF(pjsip_msg_body*) pjsip_multipart_
+ if (*curptr=='\r') ++curptr;
+ if (*curptr!='\n') {
+ /* Expecting a newline here */
++ PJ_LOG(2, (THIS_FILE, "Failed to find newline"));
++
+ return NULL;
+ }
+ ++curptr;
+@@ -645,6 +863,7 @@ PJ_DEF(pjsip_msg_body*) pjsip_multipart_
+ curptr = pj_strstr(&subbody, &delim);
+ if (!curptr) {
+ /* We're really expecting end delimiter to be found. */
++ PJ_LOG(2, (THIS_FILE, "Failed to find end-delimiter"));
+ return NULL;
+ }
+ }
+@@ -670,9 +889,13 @@ PJ_DEF(pjsip_msg_body*) pjsip_multipart_
+ part = parse_multipart_part(pool, start_body, end_body - start_body,
+ ctype);
+ if (part) {
++ TRACE_((THIS_FILE, "Adding part"));
+ pjsip_multipart_add_part(pool, body, part);
++ } else {
++ PJ_LOG(2, (THIS_FILE, "Failed to add part"));
+ }
+ }
++ TRACE_((THIS_FILE, "pjsip_multipart_parse finished: %p", body));
+
+ return body;
+ }
+--- a/pjsip/src/test/multipart_test.c
++++ b/pjsip/src/test/multipart_test.c
+@@ -28,6 +28,7 @@
+ typedef pj_status_t (*verify_ptr)(pj_pool_t*,pjsip_msg_body*);
+
+ static pj_status_t verify1(pj_pool_t *pool, pjsip_msg_body *body);
++static pj_status_t verify2(pj_pool_t *pool, pjsip_msg_body *body);
+
+ static struct test_t
+ {
+@@ -68,7 +69,41 @@ static struct test_t
+ "This is epilogue, which should be ignored too",
+
+ &verify1
++ },
++ {
++ /* Content-type */
++ "multipart", "mixed", "12345",
++
++ /* Body: */
++ "This is the prolog, which should be ignored.\r\n"
++ "--12345\r\n"
++ "Content-Type: text/plain\r\n"
++ "Content-ID: <header1@example.org>\r\n"
++ "Content-ID: <\"header1\"@example.org>\r\n"
++ "Content-Length: 13\r\n"
++ "\r\n"
++ "has header1\r\n"
++ "--12345 \t\r\n"
++ "Content-Type: application/pidf+xml\r\n"
++ "Content-ID: <my header2@example.org>\r\n"
++ "Content-ID: <my\xffheader2@example.org>\r\n"
++ "Content-Length: 13\r\n"
++ "\r\n"
++ "has header2\r\n"
++ "--12345\r\n"
++ "Content-Type: text/plain\r\n"
++ "Content-ID: <my header3@example.org>\r\n"
++ "Content-ID: <header1@example.org>\r\n"
++ "Content-ID: <my header4@example.org>\r\n"
++ "Content-Length: 13\r\n"
++ "\r\n"
++ "has header4\r\n"
++ "--12345--\r\n"
++ "This is epilogue, which should be ignored too",
++
++ &verify2
+ }
++
+ };
+
+ static void init_media_type(pjsip_media_type *mt,
+@@ -87,6 +122,192 @@ static void init_media_type(pjsip_media_
+ }
+ }
+
++static int verify_hdr(pj_pool_t *pool, pjsip_msg_body *multipart_body,
++ void *hdr, char *part_body)
++{
++ pjsip_media_type mt;
++ pjsip_multipart_part *part;
++ pj_str_t the_body;
++
++
++ part = pjsip_multipart_find_part_by_header(pool, multipart_body, hdr, NULL);
++ if (!part) {
++ return -1;
++ }
++
++ the_body.ptr = (char*)part->body->data;
++ the_body.slen = part->body->len;
++
++ if (pj_strcmp2(&the_body, part_body) != 0) {
++ return -2;
++ }
++
++ return 0;
++}
++
++static int verify_cid_str(pj_pool_t *pool, pjsip_msg_body *multipart_body,
++ pj_str_t cid_url, char *part_body)
++{
++ pjsip_media_type mt;
++ pjsip_multipart_part *part;
++ pj_str_t the_body;
++
++ part = pjsip_multipart_find_part_by_cid_str(pool, multipart_body, &cid_url);
++ if (!part) {
++ return -3;
++ }
++
++ the_body.ptr = (char*)part->body->data;
++ the_body.slen = part->body->len;
++
++ if (pj_strcmp2(&the_body, part_body) != 0) {
++ return -4;
++ }
++
++ return 0;
++}
++
++static int verify_cid_uri(pj_pool_t *pool, pjsip_msg_body *multipart_body,
++ pjsip_other_uri *cid_uri, char *part_body)
++{
++ pjsip_media_type mt;
++ pjsip_multipart_part *part;
++ pj_str_t the_body;
++
++ part = pjsip_multipart_find_part_by_cid_uri(pool, multipart_body, cid_uri);
++ if (!part) {
++ return -5;
++ }
++
++ the_body.ptr = (char*)part->body->data;
++ the_body.slen = part->body->len;
++
++ if (pj_strcmp2(&the_body, part_body) != 0) {
++ return -6;
++ }
++
++ return 0;
++}
++
++static pj_status_t verify2(pj_pool_t *pool, pjsip_msg_body *body)
++{
++ int rc = 0;
++ int rcbase = 300;
++ pjsip_other_uri *cid_uri;
++ pjsip_ctype_hdr *ctype_hdr = pjsip_ctype_hdr_create(pool);
++
++ ctype_hdr->media.type = pj_str("application");
++ ctype_hdr->media.subtype = pj_str("pidf+xml");
++
++ rc = verify_hdr(pool, body, ctype_hdr, "has header2");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("cid:header1@example.org"), "has header1");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("%22header1%22@example.org"), "has header1");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ cid_uri = pjsip_uri_get_uri(pjsip_parse_uri(pool, "<cid:%22header1%22@example.org>",
++ strlen("<cid:%22header1%22@example.org>"), 0));
++ rcbase += 10;
++ rc = verify_cid_uri(pool, body, cid_uri, "has header1");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("<cid:my%20header2@example.org>"), "has header2");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("cid:my%ffheader2@example.org"), "has header2");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ cid_uri = pjsip_uri_get_uri(pjsip_parse_uri(pool, "<cid:my%ffheader2@example.org>",
++ strlen("<cid:my%ffheader2@example.org>"), 0));
++ rcbase += 10;
++ rc = verify_cid_uri(pool, body, cid_uri, "has header2");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("cid:my%20header3@example.org"), "has header4");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("<cid:my%20header4@example.org>"), "has header4");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ cid_uri = pjsip_uri_get_uri(pjsip_parse_uri(pool, "<cid:my%20header4@example.org>",
++ strlen("<cid:my%20header4@example.org>"), 0));
++ rcbase += 10;
++ rc = verify_cid_uri(pool, body, cid_uri, "has header4");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("<my%20header3@example.org>"), "has header4");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ /* These should all fail for malformed or missing URI */
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("cid:"), "has header4");
++ if (!rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str(""), "has header4");
++ if (!rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("<>"), "has header4");
++ if (!rc) {
++ return (rc - rcbase);
++ }
++
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("<cid>"), "has header4");
++ if (!rc) {
++ return (rc - rcbase);
++ }
++
++ /*
++ * This is going to pass but the ' ' in the uri is un-encoded which is invalid
++ * so we should never see it.
++ */
++ rcbase += 10;
++ rc = verify_cid_str(pool, body, pj_str("cid:my header3@example.org"), "has header4");
++ if (rc) {
++ return (rc - rcbase);
++ }
++
++ return 0;
++}
++
+ static int verify_part(pjsip_multipart_part *part,
+ char *h_content_type,
+ char *h_content_subtype,
+@@ -236,8 +457,10 @@ static int parse_test(void)
+
+ pj_strdup2_with_null(pool, &str, p_tests[i].msg);
+ body = pjsip_multipart_parse(pool, str.ptr, str.slen, &ctype, 0);
+- if (!body)
++ if (!body) {
++ pj_pool_release(pool);
+ return -100;
++ }
+
+ if (p_tests[i].verify) {
+ rc = p_tests[i].verify(pool, body);
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