Module: kamailio Branch: master Commit: 3de068a8897917d088993923f3028ca98aadc765 URL: https://github.com/kamailio/kamailio/commit/3de068a8897917d088993923f3028ca… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2017-12-06T16:50:39+01:00 tm: t_check_status exported to kemi framework --- Modified: src/modules/tm/tm.c --- Diff: https://github.com/kamailio/kamailio/commit/3de068a8897917d088993923f3028ca… Patch: https://github.com/kamailio/kamailio/commit/3de068a8897917d088993923f3028ca… --- diff --git a/src/modules/tm/tm.c b/src/modules/tm/tm.c index 9bc1695a0f..7d7145393b 100644 --- a/src/modules/tm/tm.c +++ b/src/modules/tm/tm.c @@ -852,7 +852,6 @@ static int child_init(int rank) } - /**************************** wrapper functions ***************************/ static int t_check_status(struct sip_msg* msg, char *p1, char *foo) { @@ -984,6 +983,98 @@ static int t_check_status(struct sip_msg* msg, char *p1, char *foo) return -1; } +static int ki_t_check_status(sip_msg_t* msg, str *sexp) +{ + regmatch_t pmatch; + struct cell *t; + char *status, *s = NULL; + char backup; + int lowest_status, n, ret; + regex_t re; + + /* first get the transaction */ + if (t_check(msg, 0 ) == -1) return -1; + + if ((t = get_t()) == 0) { + LM_ERR("cannot check status for a reply" + " which has no T-state established\n"); + goto error0; + } + + memset(&re, 0, sizeof(regex_t)); + if (regcomp(&re, sexp->s, REG_EXTENDED|REG_ICASE|REG_NEWLINE)) { + LM_ERR("Bad regular expression '%s'\n", s); + goto error0; + } + + switch(get_route_type()) { + case REQUEST_ROUTE: + /* use the status of the last sent reply */ + status = int2str( t->uas.status, 0); + break; + + case TM_ONREPLY_ROUTE: + case CORE_ONREPLY_ROUTE: + /* use the status of the current reply */ + status = msg->first_line.u.reply.status.s; + backup = status[msg->first_line.u.reply.status.len]; + status[msg->first_line.u.reply.status.len] = 0; + break; + + case FAILURE_ROUTE: + /* use the status of the winning reply */ + ret = t_pick_branch( -1, 0, t, &lowest_status); + if (ret == -1) { + /* t_pick_branch() retuns error also when there are only + * blind UACs. Let us give it another chance including the + * blind branches. */ + LM_DBG("t_pick_branch returned error," + " trying t_pick_branch_blind\n"); + ret = t_pick_branch_blind(t, &lowest_status); + } + if (ret < 0) { + LM_CRIT("BUG: t_pick_branch failed to get" + " a final response in FAILURE_ROUTE\n"); + goto error; + } + status = int2str( lowest_status , 0); + break; + case BRANCH_FAILURE_ROUTE: + status = int2str(t->uac[get_t_branch()].last_received, 0); + break; + default: + LM_ERR("unsupported route type %d\n", + get_route_type()); + goto error; + } + + LM_DBG("checked status is <%s>\n",status); + /* do the checking */ + n = regexec(&re, status, 1, &pmatch, 0); + + regfree(&re); + + if (unlikely(t && is_route_type(CORE_ONREPLY_ROUTE))){ + /* t_check() above has the side effect of setting T and + * REFerencing T => we must unref and unset it. */ + UNREF( t ); + set_t(T_UNDEFINED, T_BR_UNDEFINED); + } + if (n!=0) return -1; + return 1; + +error: + regfree(&re); +error0: + if (unlikely(t && is_route_type(CORE_ONREPLY_ROUTE))){ + /* t_check() above has the side effect of setting T and + * REFerencing T => we must unref and unset it. */ + UNREF( t ); + set_t(T_UNDEFINED, T_BR_UNDEFINED); + } + + return -1; +} inline static int w_t_check(struct sip_msg* msg, char* str, char* str2) { @@ -2818,6 +2909,11 @@ static sr_kemi_t tm_kemi_exports[] = { { SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE } }, + { str_init("tm"), str_init("t_check_status"), + SR_KEMIP_INT, ki_t_check_status, + { SR_KEMIP_STR, SR_KEMIP_NONE, SR_KEMIP_NONE, + SR_KEMIP_NONE, SR_KEMIP_NONE, SR_KEMIP_NONE } + }, { str_init("tm"), str_init("t_grep_status"), SR_KEMIP_INT, t_grep_status, { SR_KEMIP_INT, SR_KEMIP_NONE, SR_KEMIP_NONE, @@ -2883,4 +2979,4 @@ int mod_register(char *path, int *dlflags, void *p1, void *p2) { sr_kemi_modules_add(tm_kemi_exports); return 0; -} +} \ No newline at end of file