[sr-dev] git:4.4:f6697740: topos: restore stripped headers when receiving a dlg request

Module: kamailio Branch: 4.4 Commit: f6697740e7d55f8eca2039c235feaff91f5aa14f URL: https://github.com/kamailio/kamailio/commit/f6697740e7d55f8eca2039c235feaff… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2016-03-30T14:33:10+02:00 topos: restore stripped headers when receiving a dlg request (cherry picked from commit 2cb59f1716931e58b00ba7c0c177b0609c796b17) --- Modified: modules/topos/tps_msg.c --- Diff: https://github.com/kamailio/kamailio/commit/f6697740e7d55f8eca2039c235feaff… Patch: https://github.com/kamailio/kamailio/commit/f6697740e7d55f8eca2039c235feaff… --- diff --git a/modules/topos/tps_msg.c b/modules/topos/tps_msg.c index f35eeaf..7b3805a 100644 --- a/modules/topos/tps_msg.c +++ b/modules/topos/tps_msg.c @@ -33,6 +33,7 @@ #include "../../data_lump.h" #include "../../forward.h" #include "../../trim.h" +#include "../../dset.h" #include "../../msg_translator.h" #include "../../parser/parse_rr.h" #include "../../parser/parse_uri.h" @@ -258,6 +259,33 @@ int tps_skip_msg(sip_msg_t *msg) /** * */ +int tps_dlg_message_update(sip_msg_t *msg, tps_data_t *ptsd) +{ + if(parse_sip_msg_uri(msg)<0) { + LM_ERR("failed to parse r-uri\n"); + return -1; + } + if(msg->parsed_uri.user.len<10) { + LM_DBG("not an expected user format\n"); + return 1; + } + if(memcmp(msg->parsed_uri.user.s, "atpsh-", 6)==0) { + ptsd->a_uuid = msg->parsed_uri.user; + return 0; + } + if(memcmp(msg->parsed_uri.user.s, "btpsh-", 6)==0) { + ptsd->a_uuid = msg->parsed_uri.user; + ptsd->b_uuid = msg->parsed_uri.user; + return 0; + } + LM_DBG("not an expected user prefix\n"); + + return 1; +} + +/** + * + */ int tps_pack_message(sip_msg_t *msg, tps_data_t *ptsd) { hdr_field_t *hdr; @@ -537,13 +565,110 @@ int tps_reappend_rr(sip_msg_t *msg, tps_data_t *ptsd, str *hbody) /** * */ +int tps_reappend_route(sip_msg_t *msg, tps_data_t *ptsd, str *hbody, int rev) +{ + str hname = str_init("Route"); + + if(tps_add_headers(msg, &hname, hbody, 0)<0) { + return -1; + } + + return 0; +} + +/** + * + */ int tps_request_received(sip_msg_t *msg, int dialog) { + tps_data_t mtsd; + tps_data_t stsd; + str lkey; + str ftag; + str nuri; + uint32_t direction = TPS_DIR_DOWNSTREAM; + int ret; + if(dialog==0) { /* nothing to do for initial request */ return 0; } + + memset(&mtsd, 0, sizeof(tps_data_t)); + memset(&stsd, 0, sizeof(tps_data_t)); + + if(tps_pack_message(msg, &mtsd)<0) { + LM_ERR("failed to extract and pack the headers\n"); + return -1; + } + + ret = tps_dlg_message_update(msg, &mtsd); + if(ret<0) { + LM_ERR("failed to update on dlg message\n"); + return -1; + } + + lkey = msg->callid->body; + + tps_storage_lock_get(&lkey); + + if(tps_storage_load_dialog(msg, &mtsd, &stsd)<0) { + goto error; + } + + /* detect direction - get from-tag */ + if(parse_from_header(msg)<0 || msg->from==NULL) { + LM_ERR("failed getting 'from' header!\n"); + goto error; + } + ftag = get_from(msg)->tag_value; + + if(stsd.a_tag.len!=ftag.len) { + direction = TPS_DIR_UPSTREAM; + } else { + if(memcpy(stsd.a_tag.s, ftag.s, ftag.len)==0) { + direction = TPS_DIR_DOWNSTREAM; + } else { + direction = TPS_DIR_UPSTREAM; + } + } + mtsd.direction = direction; + + tps_storage_lock_release(&lkey); + + if(direction == TPS_DIR_UPSTREAM) { + nuri = stsd.a_contact; + } else { + nuri = stsd.b_contact; + } + if(nuri.len>0) { + if(rewrite_uri(msg, &nuri)<0) { + LM_ERR("failed to update r-uri\n"); + return -1; + } + } + + if(tps_reappend_route(msg, &stsd, &stsd.s_rr, + (direction==TPS_DIR_UPSTREAM)?0:1)<0) { + LM_ERR("failed to reappend s-route\n"); + return -1; + } + if(direction == TPS_DIR_UPSTREAM) { + if(tps_reappend_route(msg, &stsd, &stsd.a_rr, 0)<0) { + LM_ERR("failed to reappend a-route\n"); + return -1; + } + } else { + if(tps_reappend_route(msg, &stsd, &stsd.b_rr, 0)<0) { + LM_ERR("failed to reappend b-route\n"); + return -1; + } + } return 0; + +error: + tps_storage_lock_release(&lkey); + return -1; } /**