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Fix race condition where duplicated requests may be handled by multiple threads.

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This is the Asterisk 13 version of the patch. The main difference is in the pubsub
code since it was completely refactored between Asterisk 12 and 13.

Review: https://reviewboard.asterisk.org/r/4175



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@427841 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2014-11-14 14:24:02 +00:00
parent 721ae89155
commit 77c57f2b1a
4 changed files with 29 additions and 14 deletions
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7
res/res_pjsip_session.c
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@@ -1416,6 +1416,7 @@ static pjsip_inv_session *pre_session_setup(pjsip_rx_data *rdata, const struct a
pjsip_dialog *dlg;
pjsip_inv_session *inv_session;
unsigned int options = endpoint->extensions.flags;
pj_status_t dlg_status;
if (pjsip_inv_verify_request(rdata, &options, NULL, NULL, ast_sip_get_pjsip_endpoint(), &tdata) != PJ_SUCCESS) {
if (tdata) {
@@ -1425,9 +1426,11 @@ static pjsip_inv_session *pre_session_setup(pjsip_rx_data *rdata, const struct a
}
return NULL;
}
dlg = ast_sip_create_dialog_uas(endpoint, rdata);
dlg = ast_sip_create_dialog_uas(endpoint, rdata, &dlg_status);
if (!dlg) {
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 500, NULL, NULL, NULL);
if (dlg_status != PJ_EEXISTS) {
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 500, NULL, NULL, NULL);
}
return NULL;
}
if (pjsip_inv_create_uas(dlg, rdata, NULL, options, &inv_session) != PJ_SUCCESS) {