[sr-dev] git:5.4:0bde3ca5: dialog: dlg_cell, always check for a to-tag match

Module: kamailio Branch: 5.4 Commit: 0bde3ca506467008cf3d8345afa731617b095c8c URL: https://github.com/kamailio/kamailio/commit/0bde3ca506467008cf3d8345afa7316… Author: Julien Chavanton <jchavanton(a)gmail.com> Committer: Julien Chavanton <jchavanton(a)gmail.com> Date: 2020-09-29T08:58:58-07:00 dialog: dlg_cell, always check for a to-tag match --- Modified: src/modules/dialog/dlg_hash.c --- Diff: https://github.com/kamailio/kamailio/commit/0bde3ca506467008cf3d8345afa7316… Patch: https://github.com/kamailio/kamailio/commit/0bde3ca506467008cf3d8345afa7316… --- diff --git a/src/modules/dialog/dlg_hash.c b/src/modules/dialog/dlg_hash.c index 5557e87574..93d35f553b 100644 --- a/src/modules/dialog/dlg_hash.c +++ b/src/modules/dialog/dlg_hash.c @@ -865,6 +865,7 @@ static inline struct dlg_cell* internal_get_dlg(unsigned int h_entry, unsigned int *dir, int mode) { struct dlg_cell *dlg; + struct dlg_cell *dlg_no_totag=NULL; struct dlg_entry *d_entry; d_entry = &(d_table->entries[h_entry]); @@ -876,13 +877,24 @@ static inline struct dlg_cell* internal_get_dlg(unsigned int h_entry, if (match_dialog( dlg, callid, ftag, ttag, dir)==1) { ref_dlg_unsafe(dlg, 1); if(likely(mode==0)) dlg_unlock( d_table, d_entry); - LM_DBG("dialog callid='%.*s' found on entry %u, dir=%d\n", - callid->len, callid->s,h_entry,*dir); + + /* If to-tag is empty continue to search in case another dialog is found with a matching to-tag. */ + if (dlg->tag[1].len == 0) { + dlg_no_totag=dlg; + LM_DBG("dialog callid='%.*s' found on entry %u, dir=%d\n", + callid->len, callid->s,h_entry,*dir); + continue; + } + LM_DBG("dialog callid='%.*s' found on entry %u, dir=%d to-tag='%.*s'\n", + callid->len, callid->s,h_entry,*dir, dlg->tag[1].len, dlg->tag[1].s); + return dlg; } } if(likely(mode==0)) dlg_unlock( d_table, d_entry); + if (dlg_no_totag) return dlg_no_totag; + LM_DBG("no dialog callid='%.*s' found\n", callid->len, callid->s); return 0; }