/** * replicates the remote deletion of a dialog locally * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_delete(void) { str call_id, from_tag, to_tag; unsigned int dir, dst_leg; struct dlg_cell *dlg; int old_state, new_state, unref, ret; bin_pop_str(&call_id); bin_pop_str(&from_tag); bin_pop_str(&to_tag); LM_DBG("Deleting dialog with callid: %.*s\n", call_id.len, call_id.s); dlg = get_dlg(&call_id, &from_tag, &to_tag, &dir, &dst_leg); if (!dlg) { LM_ERR("dialog not found (callid: |%.*s| ftag: |%.*s|\n", call_id.len, call_id.s, from_tag.len, from_tag.s); return -1; } destroy_linkers(dlg->profile_links); dlg->profile_links = NULL; next_state_dlg(dlg, DLG_EVENT_REQBYE, &old_state, &new_state, &unref); if (old_state == new_state) { LM_ERR("duplicate dialog delete request (callid: |%.*s|" "ftag: |%.*s|\n", call_id.len, call_id.s, from_tag.len, from_tag.s); return -1; } ret = remove_dlg_timer(&dlg->tl); if (ret < 0) { LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else if (ret > 0) { LM_DBG("dlg expired (not in timer list) on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else { /* dialog sucessfully removed from timer -> unref */ unref++; } unref_dlg(dlg, 1 + unref); if_update_stat(dlg_enable_stats, active_dlgs, -1); return 0; }
static int w_dlg_get(struct sip_msg *msg, char *ci, char *ft, char *tt) { dlg_cell_t *dlg = NULL; str sc = {0,0}; str sf = {0,0}; str st = {0,0}; unsigned int dir = 0; if(ci==0 || ft==0 || tt==0) { LM_ERR("invalid parameters\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ci, &sc)!=0) { LM_ERR("unable to get Call-ID\n"); return -1; } if(sc.s==NULL || sc.len == 0) { LM_ERR("invalid Call-ID parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ft, &sf)!=0) { LM_ERR("unable to get From tag\n"); return -1; } if(sf.s==NULL || sf.len == 0) { LM_ERR("invalid From tag parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)tt, &st)!=0) { LM_ERR("unable to get To Tag\n"); return -1; } if(st.s==NULL || st.len == 0) { LM_ERR("invalid To tag parameter\n"); return -1; } dlg = get_dlg(&sc, &sf, &st, &dir); if(dlg==NULL) return -1; /* set shorcut to dialog internal unique id */ _dlg_ctx.iuid.h_entry = dlg->h_entry; _dlg_ctx.iuid.h_id = dlg->h_id; _dlg_ctx.dir = dir; dlg_release(dlg); return 1; }
static int w_dlg_get(struct sip_msg *msg, char *ci, char *ft, char *tt) { struct dlg_cell *dlg = NULL; str sc = {0,0}; str sf = {0,0}; str st = {0,0}; unsigned int dir = 0; if(ci==0 || ft==0 || tt==0) { LM_ERR("invalid parameters\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ci, &sc)!=0) { LM_ERR("unable to get Call-ID\n"); return -1; } if(sc.s==NULL || sc.len == 0) { LM_ERR("invalid Call-ID parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ft, &sf)!=0) { LM_ERR("unable to get From tag\n"); return -1; } if(sf.s==NULL || sf.len == 0) { LM_ERR("invalid From tag parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)tt, &st)!=0) { LM_ERR("unable to get To Tag\n"); return -1; } if(st.s==NULL || st.len == 0) { LM_ERR("invalid To tag parameter\n"); return -1; } dlg = get_dlg(&sc, &sf, &st, &dir); if(dlg==NULL) return -1; unref_dlg(dlg, 1); set_current_dialog(msg, dlg); _dlg_ctx.dlg = dlg; _dlg_ctx.dir = dir; return 1; }
str * api_get_dlg_variable(str *callid, str *ftag, str *ttag, str *key) { struct dlg_cell *dlg; unsigned int dir = DLG_DIR_NONE; dlg = get_dlg(callid, ftag, ttag, &dir); //increments ref count! if (!dlg) { LM_ERR("Asked to tear down non existent dialog\n"); return NULL; } unref_dlg(dlg, 1); return get_dlg_variable(dlg, key); }
/* Wrapper for terminating dialog from API - from other modules */ int w_api_terminate_dlg(str *callid, str *ftag, str *ttag, str *hdrs, str* reason) { struct dlg_cell *dlg; unsigned int dir = DLG_DIR_NONE; dlg = get_dlg(callid, ftag, ttag, &dir); //increments ref count! if (!dlg) { LM_ERR("Asked to tear down non existent dialog\n"); return -1; } unref_dlg(dlg, 1); return dlg_terminate(dlg, NULL, NULL/*reason*/, 2, hdrs); }
/*! * */ dlg_cell_t *dlg_lookup_msg_dialog(sip_msg_t *msg, unsigned int *dir) { dlg_cell_t *dlg = NULL; str callid; str ftag; str ttag; unsigned int vdir; /* Retrieve the current dialog */ dlg = dlg_get_ctx_dialog(); if(dlg!=NULL) { if(dir) { if (pre_match_parse(msg, &callid, &ftag, &ttag, 0)<0) { dlg_release(dlg); return NULL; } if (dlg->tag[DLG_CALLER_LEG].len == ftag.len && strncmp(dlg->tag[DLG_CALLER_LEG].s, ftag.s, ftag.len)==0 && strncmp(dlg->callid.s, callid.s, callid.len)==0) { *dir = DLG_DIR_DOWNSTREAM; } else { if (ttag.len>0 && dlg->tag[DLG_CALLER_LEG].len == ttag.len && strncmp(dlg->tag[DLG_CALLER_LEG].s, ttag.s, ttag.len)==0 && strncmp(dlg->callid.s, callid.s, callid.len)==0) { *dir = DLG_DIR_UPSTREAM; } } } return dlg; } if (pre_match_parse(msg, &callid, &ftag, &ttag, 0)<0) return NULL; vdir = DLG_DIR_NONE; dlg = get_dlg(&callid, &ftag, &ttag, &vdir); if (dlg==NULL){ LM_DBG("dlg with callid '%.*s' not found\n", msg->callid->body.len, msg->callid->body.s); return NULL; } if(dir) *dir = vdir; return dlg; }
int register_dlgcb_nodlg(str *callid, str *ftag, str *ttag, int types, dialog_cb f, void *param, param_free_cb ff ) { struct dlg_cell *dlg; unsigned int dir = DLG_DIR_NONE; dlg = get_dlg(callid, ftag, ttag, &dir); //increments ref count! if (!dlg) { LM_ERR("Can't find dialog to register callback\n"); return -1; } int ret = register_dlgcb(dlg, types, f, param, ff); unref_dlg(dlg, 1); return ret; }
struct dlg_cell *dlg_get_msg_dialog(sip_msg_t *msg) { struct dlg_cell *dlg = NULL; str callid; str ftag; str ttag; unsigned int dir; /* Retrieve the current dialog */ dlg = dlg_get_ctx_dialog(); if (dlg != NULL ) return dlg; if (pre_match_parse(msg, &callid, &ftag, &ttag, 0) < 0) return NULL ; dir = DLG_DIR_NONE; dlg = get_dlg(&callid, &ftag, &ttag, &dir); if (dlg == NULL ) { LM_DBG("dlg with callid '%.*s' not found\n", msg->callid->body.len, msg->callid->body.s); return NULL ; } return dlg; }
/*! * \brief Function that is registered as RR callback for dialog tracking * * Function that is registered as RR callback for dialog tracking. It * sets the appropriate events after the SIP method and run the state * machine to update the dialog state. It updates then the saved * dialogs and also the statistics. * \param req SIP request * \param route_params record-route parameter * \param param unused */ void dlg_onroute(struct sip_msg* req, str *route_params, void *param) { dlg_cell_t *dlg; dlg_iuid_t *iuid; str val, callid, ftag, ttag; int h_entry, h_id, new_state, old_state, unref, event, timeout, reset; unsigned int dir; int ret = 0; dlg = dlg_get_ctx_dialog(); if (dlg!=NULL) { dlg_release(dlg); return; } /* skip initial requests - they may end up here because of the * preloaded route */ if ( (!req->to && parse_headers(req, HDR_TO_F,0)<0) || !req->to ) { LM_ERR("bad request or missing TO hdr :-/\n"); return; } if ( get_to(req)->tag_value.len==0 ) return; dlg = 0; dir = DLG_DIR_NONE; if ( seq_match_mode!=SEQ_MATCH_NO_ID ) { if( d_rrb.get_route_param( req, &rr_param, &val)!=0) { LM_DBG("Route param '%.*s' not found\n", rr_param.len,rr_param.s); if (seq_match_mode==SEQ_MATCH_STRICT_ID ) return; } else { LM_DBG("route param is '%.*s' (len=%d)\n",val.len,val.s,val.len); if ( parse_dlg_rr_param( val.s, val.s+val.len, &h_entry, &h_id)<0 ) return; dlg = dlg_lookup(h_entry, h_id); if (dlg==0) { LM_WARN("unable to find dialog for %.*s " "with route param '%.*s' [%u:%u]\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, val.len,val.s, h_entry, h_id); if (seq_match_mode==SEQ_MATCH_STRICT_ID ) return; } else { if (pre_match_parse( req, &callid, &ftag, &ttag, 1)<0) { // lookup_dlg has incremented the ref count by 1 dlg_release(dlg); return; } if (match_dialog( dlg, &callid, &ftag, &ttag, &dir )==0) { LM_WARN("tight matching failed for %.*s with callid='%.*s'/%d, " "ftag='%.*s'/%d, ttag='%.*s'/%d and direction=%d\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, callid.len, callid.s, callid.len, ftag.len, ftag.s, ftag.len, ttag.len, ttag.s, ttag.len, dir); LM_WARN("dialog identification elements are callid='%.*s'/%d, " "caller tag='%.*s'/%d, callee tag='%.*s'/%d\n", dlg->callid.len, dlg->callid.s, dlg->callid.len, dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLER_LEG].s, dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLEE_LEG].len, dlg->tag[DLG_CALLEE_LEG].s, dlg->tag[DLG_CALLEE_LEG].len); // lookup_dlg has incremented the ref count by 1 dlg_release(dlg); // Reset variables in order to do a lookup based on SIP-Elements. dlg = 0; dir = DLG_DIR_NONE; if (seq_match_mode==SEQ_MATCH_STRICT_ID ) return; } } } } if (dlg==0) { if (pre_match_parse( req, &callid, &ftag, &ttag, 1)<0) return; /* TODO - try to use the RR dir detection to speed up here the * search -bogdan */ dlg = get_dlg(&callid, &ftag, &ttag, &dir); if (dlg==0){ LM_DBG("Callid '%.*s' not found\n", req->callid->body.len, req->callid->body.s); return; } } /* set current dialog - re-use ref increment from dlg_get() above */ set_current_dialog( req, dlg); _dlg_ctx.iuid.h_entry = dlg->h_entry; _dlg_ctx.iuid.h_id = dlg->h_id; if (req->first_line.u.request.method_value != METHOD_ACK) { iuid = dlg_get_iuid_shm_clone(dlg); if(iuid!=NULL) { /* register callback for the replies of this request */ if ( d_tmb.register_tmcb( req, 0, TMCB_RESPONSE_IN|TMCB_ON_FAILURE, dlg_onreply, (void*)iuid, dlg_iuid_sfree)<0 ) { LM_ERR("failed to register TMCB (3)\n"); shm_free(iuid); } iuid = NULL; } } /* run state machine */ switch ( req->first_line.u.request.method_value ) { case METHOD_PRACK: event = DLG_EVENT_REQPRACK; break; case METHOD_ACK: event = DLG_EVENT_REQACK; break; case METHOD_BYE: event = DLG_EVENT_REQBYE; break; default: event = DLG_EVENT_REQ; } next_state_dlg( dlg, event, &old_state, &new_state, &unref); CURR_DLG_ID = req->id; CURR_DLG_LIFETIME = (unsigned int)(time(0))-dlg->start_ts; CURR_DLG_STATUS = new_state; dlg_run_event_route(dlg, req, old_state, new_state); /* delay deletion of dialog until transaction has died off in order * to absorb in-air messages */ if (new_state==DLG_STATE_DELETED && old_state!=DLG_STATE_DELETED) { iuid = dlg_get_iuid_shm_clone(dlg); if(iuid!=NULL) { if ( d_tmb.register_tmcb(req, NULL, TMCB_DESTROY, unref_dlg_from_cb, (void*)iuid, dlg_iuid_sfree)<0 ) { LM_ERR("failed to register deletion delay function\n"); shm_free(iuid); } else { dlg_ref(dlg, 1); } } } if (new_state==DLG_STATE_CONFIRMED && old_state!=DLG_STATE_CONFIRMED) dlg_ka_add(dlg); /* run actions for the transition */ if (event==DLG_EVENT_REQBYE && new_state==DLG_STATE_DELETED && old_state!=DLG_STATE_DELETED) { LM_DBG("BYE successfully processed\n"); /* remove from timer */ ret = remove_dialog_timer(&dlg->tl); if (ret < 0) { LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLER_LEG].s, dlg->tag[DLG_CALLEE_LEG].len, dlg->tag[DLG_CALLEE_LEG].s); } else if (ret > 0) { LM_WARN("inconsitent dlg timer data on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLER_LEG].s, dlg->tag[DLG_CALLEE_LEG].len, dlg->tag[DLG_CALLEE_LEG].s); } else { /* one extra unref due to removal from timer list */ unref++; } /* dialog terminated (BYE) */ dlg_terminated( req, dlg, dir); dlg_unref(dlg, unref); _dlg_ctx.cpid = my_pid(); _dlg_ctx.expect_t = 1; dlg_set_ctx_iuid(dlg); if_update_stat( dlg_enable_stats, active_dlgs, -1); goto done; } if ( (event==DLG_EVENT_REQ || event==DLG_EVENT_REQACK) && (new_state==DLG_STATE_CONFIRMED || new_state==DLG_STATE_EARLY)) { timeout = get_dlg_timeout(req); if (timeout!=default_timeout) { dlg->lifetime = timeout; } reset = !((dlg->iflags & DLG_IFLAG_TIMER_NORESET) || dlg_timeout_noreset); if ((new_state!=DLG_STATE_EARLY) && (old_state!=DLG_STATE_CONFIRMED || reset)) { if (update_dlg_timer( &dlg->tl, dlg->lifetime )==-1) { LM_ERR("failed to update dialog lifetime\n"); } else { dlg->dflags |= DLG_FLAG_CHANGED; } } if(event != DLG_EVENT_REQACK) { if(dlg_refresh_contacts(dlg, req, dir)!=0) { LM_ERR("contacts update failed\n"); } else { dlg->dflags |= DLG_FLAG_CHANGED; } if(update_cseqs(dlg, req, dir)!=0) { LM_ERR("cseqs update failed\n"); } else { dlg->dflags |= DLG_FLAG_CHANGED; } } if(dlg_db_mode==DB_MODE_REALTIME && (dlg->dflags&DLG_FLAG_CHANGED)) { update_dialog_dbinfo(dlg); } if (old_state==DLG_STATE_CONFIRMED_NA) { LM_DBG("confirming ACK successfully processed\n"); /* confirming ACK request */ run_dlg_callbacks( DLGCB_CONFIRMED, dlg, req, NULL, dir, 0); } else { LM_DBG("sequential request successfully processed\n"); /* within dialog request */ run_dlg_callbacks( DLGCB_REQ_WITHIN, dlg, req, NULL, dir, 0); if ( (event!=DLG_EVENT_REQACK) && (dlg->cbs.types)&DLGCB_RESPONSE_WITHIN ) { iuid = dlg_get_iuid_shm_clone(dlg); if(iuid!=NULL) { /* register callback for the replies of this request */ if ( d_tmb.register_tmcb( req, 0, TMCB_RESPONSE_FWDED, (dir==DLG_DIR_UPSTREAM)?dlg_seq_down_onreply: dlg_seq_up_onreply, (void*)iuid, dlg_iuid_sfree)<0 ) { LM_ERR("failed to register TMCB (2)\n"); shm_free(iuid); } } } } } if(new_state==DLG_STATE_CONFIRMED && old_state==DLG_STATE_CONFIRMED_NA){ dlg->dflags |= DLG_FLAG_CHANGED; if(dlg_db_mode == DB_MODE_REALTIME) update_dialog_dbinfo(dlg); } done: dlg_release(dlg); return; }
/** * replicates a confirmed dialog from another OpenSIPS instance * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_create(struct dlg_cell *cell, str *ftag, str *ttag, int safe) { int next_id, h_entry; unsigned int dir, dst_leg; str callid, from_uri, to_uri, from_tag, to_tag; str cseq1,cseq2,contact1,contact2,rroute1,rroute2,mangled_fu,mangled_tu; str sock, vars, profiles; struct dlg_cell *dlg = NULL; struct socket_info *caller_sock, *callee_sock; struct dlg_entry *d_entry; if_update_stat(dlg_enable_stats, processed_dlgs, 1); LM_DBG("Received replicated dialog!\n"); if (!cell) { bin_pop_str(&callid); bin_pop_str(&from_tag); bin_pop_str(&to_tag); bin_pop_str(&from_uri); bin_pop_str(&to_uri); dlg = get_dlg(&callid, &from_tag, &to_tag, &dir, &dst_leg); h_entry = dlg_hash(&callid); d_entry = &d_table->entries[h_entry]; if (safe) dlg_lock(d_table, d_entry); if (dlg) { LM_DBG("Dialog with ci '%.*s' is already created\n", callid.len, callid.s); unref_dlg_unsafe(dlg, 1, d_entry); dlg_unlock(d_table, d_entry); return 0; } dlg = build_new_dlg(&callid, &from_uri, &to_uri, &from_tag); if (!dlg) { LM_ERR("Failed to create replicated dialog!\n"); goto pre_linking_error; } } else { h_entry = dlg_hash(&cell->callid); d_entry = &d_table->entries[h_entry]; if (safe) dlg_lock(d_table, d_entry); from_tag = *ftag; to_tag = *ttag; dlg = cell; } bin_pop_int(&dlg->h_id); bin_pop_int(&dlg->start_ts); bin_pop_int(&dlg->state); next_id = d_table->entries[dlg->h_entry].next_id; d_table->entries[dlg->h_entry].next_id = (next_id <= dlg->h_id) ? (dlg->h_id + 1) : next_id; if (bin_pop_str(&sock)) goto pre_linking_error; caller_sock = fetch_socket_info(&sock); if (bin_pop_str(&sock)) goto pre_linking_error; callee_sock = fetch_socket_info(&sock); if (!caller_sock || !callee_sock) { LM_ERR("Dialog in DB doesn't match any listening sockets\n"); goto pre_linking_error; } bin_pop_str(&cseq1); bin_pop_str(&cseq2); bin_pop_str(&rroute1); bin_pop_str(&rroute2); bin_pop_str(&contact1); bin_pop_str(&contact2); bin_pop_str(&mangled_fu); bin_pop_str(&mangled_tu); /* add the 2 legs */ if (dlg_add_leg_info(dlg, &from_tag, &rroute1, &contact1, &cseq1, caller_sock, 0, 0) != 0 || dlg_add_leg_info(dlg, &to_tag, &rroute2, &contact2, &cseq2, callee_sock, &mangled_fu, &mangled_tu) != 0) { LM_ERR("dlg_set_leg_info failed\n"); goto pre_linking_error; } dlg->legs_no[DLG_LEG_200OK] = DLG_FIRST_CALLEE_LEG; /* link the dialog into the hash */ dlg->h_id = d_entry->next_id++; if (!d_entry->first) d_entry->first = d_entry->last = dlg; else { d_entry->last->next = dlg; dlg->prev = d_entry->last; d_entry->last = dlg; } dlg->ref++; d_entry->cnt++; bin_pop_str(&vars); bin_pop_str(&profiles); bin_pop_int(&dlg->user_flags); bin_pop_int(&dlg->flags); bin_pop_int((void *)&dlg->tl.timeout); bin_pop_int(&dlg->legs[DLG_CALLER_LEG].last_gen_cseq); bin_pop_int(&dlg->legs[callee_idx(dlg)].last_gen_cseq); if (dlg->tl.timeout <= (unsigned int)time(0)) dlg->tl.timeout = 0; else dlg->tl.timeout -= (unsigned int)time(0); /* restore the timer values */ if (insert_dlg_timer(&dlg->tl, (int)dlg->tl.timeout) != 0) { LM_CRIT("Unable to insert dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); goto error; } if (dlg->state == DLG_STATE_CONFIRMED_NA || dlg->state == DLG_STATE_CONFIRMED) active_dlgs_cnt++; /* reference the dialog as kept in the timer list */ ref_dlg_unsafe(dlg, 1); LM_DBG("Received initial timeout of %d for dialog %.*s, safe = %d\n",dlg->tl.timeout,callid.len,callid.s,safe); dlg->lifetime = 0; /* Do not replicate the pinging - we might terminate dialogs badly when running as backup if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { if (insert_ping_timer(dlg) != 0) LM_CRIT("Unable to insert dlg %p into ping timer\n",dlg); else { ref_dlg_unsafe(dlg, 1); } } */ if (dlg_db_mode == DB_MODE_DELAYED) { /* to be later removed by timer */ ref_dlg_unsafe(dlg, 1); } if (vars.s && vars.len != 0) read_dialog_vars(vars.s, vars.len, dlg); dlg_unlock(d_table, d_entry); if (profiles.s && profiles.len != 0) read_dialog_profiles(profiles.s, profiles.len, dlg, 0, 1); if_update_stat(dlg_enable_stats, active_dlgs, 1); run_load_callback_per_dlg(dlg); return 0; pre_linking_error: dlg_unlock(d_table, d_entry); if (dlg) destroy_dlg(dlg); return -1; error: dlg_unlock(d_table, d_entry); if (dlg) unref_dlg(dlg, 1); return -1; }
/** * replicates the remote update of an ongoing dialog locally * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_update(void) { struct dlg_cell *dlg; str call_id, from_tag, to_tag, from_uri, to_uri, vars, profiles; unsigned int dir, dst_leg; int timeout, h_entry; str st; struct dlg_entry *d_entry; bin_pop_str(&call_id); bin_pop_str(&from_tag); bin_pop_str(&to_tag); bin_pop_str(&from_uri); bin_pop_str(&to_uri); LM_DBG("replicated update for ['%.*s' '%.*s' '%.*s' '%.*s' '%.*s']\n", call_id.len, call_id.s, from_tag.len, from_tag.s, to_tag.len, to_tag.s, from_uri.len, from_uri.s, to_uri.len, to_uri.s); dlg = get_dlg(&call_id, &from_tag, &to_tag, &dir, &dst_leg); h_entry = dlg_hash(&call_id); d_entry = &d_table->entries[h_entry]; dlg_lock(d_table, d_entry); if (!dlg) { /* TODO: change to LM_DBG */ LM_ERR("dialog not found, building new\n"); dlg = build_new_dlg(&call_id, &from_uri, &to_uri, &from_tag); if (!dlg) { LM_ERR("Failed to create replicated dialog!\n"); goto error; } return dlg_replicated_create(dlg, &from_tag, &to_tag, 0); } bin_skip_int(2); bin_pop_int(&dlg->state); bin_skip_str(2); bin_pop_str(&st); if (dlg_update_cseq(dlg, DLG_CALLER_LEG, &st, 0) != 0) { LM_ERR("failed to update caller cseq\n"); goto error; } bin_pop_str(&st); if (dlg_update_cseq(dlg, callee_idx(dlg), &st, 0) != 0) { LM_ERR("failed to update callee cseq\n"); goto error; } bin_skip_str(6); bin_pop_str(&vars); bin_pop_str(&profiles); bin_pop_int(&dlg->user_flags); bin_pop_int(&dlg->flags); bin_pop_int(&timeout); bin_skip_int(2); timeout -= time(0); LM_DBG("Received updated timeout of %d for dialog %.*s\n",timeout,call_id.len,call_id.s); if (dlg->lifetime != timeout) { dlg->lifetime = timeout; if (update_dlg_timer(&dlg->tl, dlg->lifetime) == -1) LM_ERR("failed to update dialog lifetime!\n"); } unref_dlg_unsafe(dlg, 1, d_entry); if (vars.s && vars.len != 0) read_dialog_vars(vars.s, vars.len, dlg); dlg_unlock(d_table, d_entry); if (profiles.s && profiles.len != 0) read_dialog_profiles(profiles.s, profiles.len, dlg, 1, 1); return 0; error: dlg_unlock(d_table, d_entry); return -1; }
/** * replicates a confirmed dialog from another OpenSIPS instance * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_create(bin_packet_t *packet, struct dlg_cell *cell, str *ftag, str *ttag, int safe) { int h_entry; unsigned int dir, dst_leg; str callid = { NULL, 0 }, from_uri, to_uri, from_tag, to_tag; str cseq1, cseq2, contact1, contact2, rroute1, rroute2, mangled_fu, mangled_tu; str sock, vars, profiles; struct dlg_cell *dlg = NULL; struct socket_info *caller_sock, *callee_sock; struct dlg_entry *d_entry; LM_DBG("Received replicated dialog!\n"); if (!cell) { DLG_BIN_POP(str, packet, callid, malformed); DLG_BIN_POP(str, packet, from_tag, malformed); DLG_BIN_POP(str, packet, to_tag, malformed); DLG_BIN_POP(str, packet, from_uri, malformed); DLG_BIN_POP(str, packet, to_uri, malformed); dlg = get_dlg(&callid, &from_tag, &to_tag, &dir, &dst_leg); h_entry = dlg_hash(&callid); d_entry = &d_table->entries[h_entry]; if (safe) dlg_lock(d_table, d_entry); if (dlg) { LM_DBG("Dialog with ci '%.*s' is already created\n", callid.len, callid.s); unref_dlg_unsafe(dlg, 1, d_entry); /* unmark dlg as loaded from DB (otherwise it would have been * dropped later when syncing from cluster is done) */ dlg->flags &= ~DLG_FLAG_FROM_DB; dlg_unlock(d_table, d_entry); return 0; } dlg = build_new_dlg(&callid, &from_uri, &to_uri, &from_tag); if (!dlg) { LM_ERR("Failed to create replicated dialog!\n"); goto pre_linking_error; } } else { h_entry = dlg_hash(&cell->callid); d_entry = &d_table->entries[h_entry]; if (safe) dlg_lock(d_table, d_entry); from_tag = *ftag; to_tag = *ttag; dlg = cell; } if_update_stat(dlg_enable_stats, processed_dlgs, 1); DLG_BIN_POP(int, packet, dlg->h_id, pre_linking_error); DLG_BIN_POP(int, packet, dlg->start_ts, pre_linking_error); DLG_BIN_POP(int, packet, dlg->state, pre_linking_error); /* next_id follows the max value of all replicated ids */ if (d_table->entries[dlg->h_entry].next_id <= dlg->h_id) d_table->entries[dlg->h_entry].next_id = dlg->h_id + 1; DLG_BIN_POP(str, packet, sock, pre_linking_error); caller_sock = fetch_socket_info(&sock); DLG_BIN_POP(str, packet, sock, pre_linking_error); callee_sock = fetch_socket_info(&sock); if (!caller_sock || !callee_sock) { LM_ERR("Replicated dialog doesn't match any listening sockets\n"); goto pre_linking_error; } DLG_BIN_POP(str, packet, cseq1, pre_linking_error); DLG_BIN_POP(str, packet, cseq2, pre_linking_error); DLG_BIN_POP(str, packet, rroute1, pre_linking_error); DLG_BIN_POP(str, packet, rroute2, pre_linking_error); DLG_BIN_POP(str, packet, contact1, pre_linking_error); DLG_BIN_POP(str, packet, contact2, pre_linking_error); DLG_BIN_POP(str, packet, mangled_fu, pre_linking_error); DLG_BIN_POP(str, packet, mangled_tu, pre_linking_error); /* add the 2 legs */ /* TODO - sdp here */ if (dlg_update_leg_info(0, dlg, &from_tag, &rroute1, &contact1, &cseq1, caller_sock, 0, 0,0) != 0 || dlg_update_leg_info(1, dlg, &to_tag, &rroute2, &contact2, &cseq2, callee_sock, &mangled_fu, &mangled_tu,0) != 0) { LM_ERR("dlg_set_leg_info failed\n"); goto pre_linking_error; } dlg->legs_no[DLG_LEG_200OK] = DLG_FIRST_CALLEE_LEG; /* link the dialog into the hash */ if (!d_entry->first) d_entry->first = d_entry->last = dlg; else { d_entry->last->next = dlg; dlg->prev = d_entry->last; d_entry->last = dlg; } dlg->ref++; d_entry->cnt++; DLG_BIN_POP(str, packet, vars, pre_linking_error); DLG_BIN_POP(str, packet, profiles, pre_linking_error); DLG_BIN_POP(int, packet, dlg->user_flags, pre_linking_error); DLG_BIN_POP(int, packet, dlg->mod_flags, pre_linking_error); DLG_BIN_POP(int, packet, dlg->flags, pre_linking_error); /* also save the dialog into the DB on this instance */ dlg->flags |= DLG_FLAG_NEW; DLG_BIN_POP(int, packet, dlg->tl.timeout, pre_linking_error); DLG_BIN_POP(int, packet, dlg->legs[DLG_CALLER_LEG].last_gen_cseq, pre_linking_error); DLG_BIN_POP(int, packet, dlg->legs[callee_idx(dlg)].last_gen_cseq, pre_linking_error); if (dlg->tl.timeout <= (unsigned int) time(0)) dlg->tl.timeout = 0; else dlg->tl.timeout -= (unsigned int) time(0); /* restore the timer values */ if (insert_dlg_timer(&dlg->tl, (int) dlg->tl.timeout) != 0) { LM_CRIT("Unable to insert dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); goto error; } if (dlg->state == DLG_STATE_CONFIRMED_NA || dlg->state == DLG_STATE_CONFIRMED) active_dlgs_cnt++; /* reference the dialog as kept in the timer list */ ref_dlg_unsafe(dlg, 1); LM_DBG("Received initial timeout of %d for dialog %.*s, safe = %d\n", dlg->tl.timeout, callid.len, callid.s, safe); dlg->lifetime = 0; if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { if (insert_ping_timer(dlg) != 0) LM_CRIT("Unable to insert dlg %p into ping timer\n",dlg); else { ref_dlg_unsafe(dlg, 1); } } if (dlg_db_mode == DB_MODE_DELAYED) { /* to be later removed by timer */ ref_dlg_unsafe(dlg, 1); } if (vars.s && vars.len != 0) read_dialog_vars(vars.s, vars.len, dlg); dlg_unlock(d_table, d_entry); if (profiles.s && profiles.len != 0) read_dialog_profiles(profiles.s, profiles.len, dlg, 0, 1); if_update_stat(dlg_enable_stats, active_dlgs, 1); run_load_callback_per_dlg(dlg); return 0; pre_linking_error: dlg_unlock(d_table, d_entry); if (dlg) destroy_dlg(dlg); return -1; error: dlg_unlock(d_table, d_entry); if (dlg) unref_dlg(dlg, 1); malformed: return -1; }
/** * replicates the remote deletion of a dialog locally * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_delete(bin_packet_t *packet) { str call_id, from_tag, to_tag; unsigned int dir, dst_leg; struct dlg_cell *dlg; int old_state, new_state, unref, ret; DLG_BIN_POP(str, packet, call_id, malformed); DLG_BIN_POP(str, packet, from_tag, malformed); DLG_BIN_POP(str, packet, to_tag, malformed); LM_DBG("Deleting dialog with callid: %.*s\n", call_id.len, call_id.s); dlg = get_dlg(&call_id, &from_tag, &to_tag, &dir, &dst_leg); if (!dlg) { /* may be already deleted due to timeout */ LM_DBG("dialog not found (callid: |%.*s| ftag: |%.*s|\n", call_id.len, call_id.s, from_tag.len, from_tag.s); return 0; } dlg_lock_dlg(dlg); destroy_linkers(dlg->profile_links, 1); dlg->profile_links = NULL; dlg_unlock_dlg(dlg); /* simulate BYE received from caller */ next_state_dlg(dlg, DLG_EVENT_REQBYE, DLG_DIR_DOWNSTREAM, &old_state, &new_state, &unref, dlg->legs_no[DLG_LEG_200OK], 0); if (old_state == new_state) { LM_ERR("duplicate dialog delete request (callid: |%.*s|" "ftag: |%.*s|\n", call_id.len, call_id.s, from_tag.len, from_tag.s); return -1; } ret = remove_dlg_timer(&dlg->tl); if (ret < 0) { LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else if (ret > 0) { LM_DBG("dlg expired (not in timer list) on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else { /* dialog successfully removed from timer -> unref */ unref++; } unref_dlg(dlg, 1 + unref); if_update_stat(dlg_enable_stats, active_dlgs, -1); return 0; malformed: return -1; }
/** * replicates the remote update of an ongoing dialog locally * by reading the relevant information using the Binary Packet Interface */ int dlg_replicated_update(bin_packet_t *packet) { struct dlg_cell *dlg; str call_id, from_tag, to_tag, from_uri, to_uri, vars, profiles; unsigned int dir, dst_leg; int timeout, h_entry; str st; struct dlg_entry *d_entry; int rcv_flags, save_new_flag; bin_pop_str(packet, &call_id); bin_pop_str(packet, &from_tag); bin_pop_str(packet, &to_tag); bin_pop_str(packet, &from_uri); bin_pop_str(packet, &to_uri); LM_DBG("replicated update for ['%.*s' '%.*s' '%.*s' '%.*s' '%.*s']\n", call_id.len, call_id.s, from_tag.len, from_tag.s, to_tag.len, to_tag.s, from_uri.len, from_uri.s, to_uri.len, to_uri.s); dlg = get_dlg(&call_id, &from_tag, &to_tag, &dir, &dst_leg); h_entry = dlg_hash(&call_id); d_entry = &d_table->entries[h_entry]; dlg_lock(d_table, d_entry); if (!dlg) { LM_DBG("dialog not found, building new\n"); dlg = build_new_dlg(&call_id, &from_uri, &to_uri, &from_tag); if (!dlg) { LM_ERR("Failed to create replicated dialog!\n"); goto error; } return dlg_replicated_create(packet ,dlg, &from_tag, &to_tag, 0); } bin_skip_int(packet, 2); bin_pop_int(packet, &dlg->state); bin_skip_str(packet, 2); bin_pop_str(packet, &st); if (dlg_update_cseq(dlg, DLG_CALLER_LEG, &st, 0) != 0) { LM_ERR("failed to update caller cseq\n"); goto error; } bin_pop_str(packet, &st); if (dlg_update_cseq(dlg, callee_idx(dlg), &st, 0) != 0) { LM_ERR("failed to update callee cseq\n"); goto error; } bin_skip_str(packet, 6); bin_pop_str(packet, &vars); bin_pop_str(packet, &profiles); bin_pop_int(packet, &dlg->user_flags); bin_pop_int(packet, &dlg->mod_flags); bin_pop_int(packet, &rcv_flags); /* make sure an update received immediately after a create can't * incorrectly erase the DLG_FLAG_NEW before locally writing to DB */ save_new_flag = dlg->flags & DLG_FLAG_NEW; dlg->flags = rcv_flags; dlg->flags |= ((save_new_flag ? DLG_FLAG_NEW : 0) | DLG_FLAG_CHANGED); bin_pop_int(packet, &timeout); bin_skip_int(packet, 2); timeout -= time(0); LM_DBG("Received updated timeout of %d for dialog %.*s\n", timeout, call_id.len, call_id.s); if (dlg->lifetime != timeout) { dlg->lifetime = timeout; switch (update_dlg_timer(&dlg->tl, dlg->lifetime) ) { case -1: LM_ERR("failed to update dialog lifetime!\n"); /* continue */ case 0: /* timeout value was updated */ break; case 1: /* dlg inserted in timer list with new expire (reference it)*/ ref_dlg(dlg,1); } } unref_dlg_unsafe(dlg, 1, d_entry); if (vars.s && vars.len != 0) read_dialog_vars(vars.s, vars.len, dlg); dlg->flags |= DLG_FLAG_VP_CHANGED; dlg_unlock(d_table, d_entry); if (profiles.s && profiles.len != 0) read_dialog_profiles(profiles.s, profiles.len, dlg, 1, 1); return 0; error: dlg_unlock(d_table, d_entry); return -1; }
static int w_dlg_get(struct sip_msg *msg, char *ci, char *ft, char *tt) { struct dlg_cell *dlg = NULL; str sc = {0,0}; str sf = {0,0}; str st = {0,0}; unsigned int dir = 0; if(ci==0 || ft==0 || tt==0) { LM_ERR("invalid parameters\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ci, &sc)!=0) { LM_ERR("unable to get Call-ID\n"); return -1; } if(sc.s==NULL || sc.len == 0) { LM_ERR("invalid Call-ID parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)ft, &sf)!=0) { LM_ERR("unable to get From tag\n"); return -1; } if(sf.s==NULL || sf.len == 0) { LM_ERR("invalid From tag parameter\n"); return -1; } if(fixup_get_svalue(msg, (gparam_p)tt, &st)!=0) { LM_ERR("unable to get To Tag\n"); return -1; } if(st.s==NULL || st.len == 0) { LM_ERR("invalid To tag parameter\n"); return -1; } dlg = get_dlg(&sc, &sf, &st, &dir); if(dlg==NULL) return -1; /* note: we should unref the dlg here (from get_dlg). BUT, because we are setting the current dialog we can ignore the unref... instead of unreffing and reffing again for the set_current_dialog. NB. this function is generally called from the cfg file. If used via API, remember to unref the dlg afterwards */ set_current_dialog(msg, dlg); _dlg_ctx.dlg = dlg; _dlg_ctx.dir = dir; return 1; }
void PluginCheckBoxBinding::save_() const { intptr_t Selected = psi().SendDlgMessage(get_dlg(), DM_GETCHECK, get_index(), 0); *Value = Selected; LogDebug(L"dlg: %p, index: %Id, value: %Id\n", get_dlg(), get_index(), *Value); }
void dlg_onroute(struct sip_msg* req, str *route_params, void *param) { struct dlg_cell *dlg; str val = {0,0}; str callid; str ftag; str ttag; int h_entry; int h_id; int new_state; int old_state; int unref; int event; int timeout; unsigned int update_val; unsigned int dir,dst_leg,src_leg; int ret = 0,ok = 1; struct dlg_entry *d_entry; str *msg_cseq; char *final_cseq; /* as this callback is triggered from loose_route, which can be accidentaly called more than once from script, we need to be sure we do this only once !*/ if (current_dlg_pointer) return; /* skip initial requests - they may end up here because of the * preloaded route */ if ( (!req->to && parse_headers(req, HDR_TO_F,0)<0) || !req->to ) { LM_ERR("bad request or missing TO hdr :-/\n"); return; } if ( get_to(req)->tag_value.len==0 ) return; dlg = 0; dir = DLG_DIR_NONE; dst_leg = -1; /* From RR callback, param will be NULL * From match_dialog, param might have a value, if we * are in the topology hiding case & we were able to extract the * DID from the R-URI */ if (param) val = *((str *)param); if ( seq_match_mode!=SEQ_MATCH_NO_ID ) { if( val.s == NULL && d_rrb.get_route_param( req, &rr_param, &val)!=0) { LM_DBG("Route param '%.*s' not found\n", rr_param.len,rr_param.s); if (seq_match_mode==SEQ_MATCH_STRICT_ID ) return; } else { LM_DBG("route param is '%.*s' (len=%d)\n",val.len,val.s,val.len); if ( parse_dlg_rr_param( val.s, val.s+val.len, &h_entry, &h_id)<0 ) return; dlg = lookup_dlg( h_entry, h_id); if (dlg==0) { LM_DBG("unable to find dialog for %.*s " "with route param '%.*s'\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, val.len,val.s); } else { /* lookup_dlg has incremented the ref count by 1 */ if (pre_match_parse( req, &callid, &ftag, &ttag)<0) { unref_dlg(dlg, 1); return; } if (match_dialog(dlg,&callid,&ftag,&ttag,&dir, &dst_leg )==0){ LM_WARN("tight matching failed for %.*s with " "callid='%.*s'/%d," " ftag='%.*s'/%d, ttag='%.*s'/%d and direction=%d\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, callid.len, callid.s, callid.len, ftag.len, ftag.s, ftag.len, ttag.len, ttag.s, ttag.len, dir); LM_WARN("dialog identification elements are " "callid='%.*s'/%d, " "caller tag='%.*s'/%d, callee tag='%.*s'/%d\n", dlg->callid.len, dlg->callid.s, dlg->callid.len, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s), dlg->legs[callee_idx(dlg)].tag.len); unref_dlg(dlg, 1); dlg = NULL; } } if (dlg==NULL && seq_match_mode==SEQ_MATCH_STRICT_ID ) return; } } if (dlg==0) { if (pre_match_parse( req, &callid, &ftag, &ttag)<0) return; /* TODO - try to use the RR dir detection to speed up here the * search -bogdan */ dlg = get_dlg(&callid, &ftag, &ttag, &dir, &dst_leg); if (!dlg){ LM_DBG("Callid '%.*s' not found\n", req->callid->body.len, req->callid->body.s); return; } } /* run state machine */ switch ( req->first_line.u.request.method_value ) { case METHOD_PRACK: event = DLG_EVENT_REQPRACK; break; case METHOD_ACK: event = DLG_EVENT_REQACK; break; case METHOD_BYE: event = DLG_EVENT_REQBYE; break; default: event = DLG_EVENT_REQ; } /* save last_dst_leg before running state machine * helpful for logging various bogus cases according to the RFC */ last_dst_leg = dst_leg; next_state_dlg( dlg, event, &old_state, &new_state, &unref); /* set current dialog - it will keep a ref! */ set_current_dialog(dlg); log_bogus_dst_leg(dlg); d_entry = &(d_table->entries[dlg->h_entry]); if(dlg->flags & DLG_FLAG_TOPHIDING) { dlg_th_onroute(dlg, req, dir); } /* run actions for the transition */ if (event==DLG_EVENT_REQBYE && new_state==DLG_STATE_DELETED && old_state!=DLG_STATE_DELETED) { /*destroy linkers */ destroy_linkers(dlg->profile_links); dlg->profile_links = NULL; if (!dlg->terminate_reason.s) { if (last_dst_leg == 0) init_dlg_term_reason(dlg,"Upstream BYE",sizeof("Upstream BYE")-1); else init_dlg_term_reason(dlg,"Downstream BYE",sizeof("Downstream BYE")-1); } LM_DBG("BYE successfully processed - dst_leg = %d\n",last_dst_leg); if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { dlg_lock (d_table,d_entry); if (dlg->legs[dst_leg].last_gen_cseq) { update_val = ++(dlg->legs[dst_leg].last_gen_cseq); dlg_unlock (d_table,d_entry); if (update_msg_cseq(req,0,update_val) != 0) LM_ERR("failed to update BYE msg cseq\n"); msg_cseq = &((struct cseq_body *)req->cseq->parsed)->number; final_cseq = shm_malloc(msg_cseq->len + 1); if (final_cseq == 0) { LM_ERR("no more shm mem\n"); goto after_unlock5; } memcpy(final_cseq,msg_cseq->s,msg_cseq->len); final_cseq[msg_cseq->len] = 0; if ( d_tmb.register_tmcb( req, 0, TMCB_RESPONSE_FWDED, fix_final_cseq, (void*)final_cseq, 0)<0 ) { LM_ERR("failed to register TMCB (2)\n"); } } else dlg_unlock (d_table,d_entry); } after_unlock5: /* remove from timer */ ret = remove_dlg_timer(&dlg->tl); if (ret < 0) { LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else if (ret > 0) { LM_DBG("dlg expired (not in timer list) on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->legs[DLG_CALLER_LEG].tag.len, dlg->legs[DLG_CALLER_LEG].tag.s, dlg->legs[callee_idx(dlg)].tag.len, ZSW(dlg->legs[callee_idx(dlg)].tag.s)); } else { /* dialog sucessfully removed from timer -> unref */ unref++; } /* dialog terminated (BYE) */ run_dlg_callbacks( DLGCB_TERMINATED, dlg, req, dir, 0); /* delete the dialog from DB */ if (should_remove_dlg_db()) remove_dialog_from_db(dlg); /* destroy dialog */ unref_dlg(dlg, unref); if_update_stat( dlg_enable_stats, active_dlgs, -1); return; } if ( (event==DLG_EVENT_REQ || event==DLG_EVENT_REQACK) && new_state==DLG_STATE_CONFIRMED) { LM_DBG("sequential request successfully processed (dst_leg=%d)\n", dst_leg); /* within dialog request */ run_dlg_callbacks( DLGCB_REQ_WITHIN, dlg, req, dir, 0); timeout = get_dlg_timeout_update(req); /* update timer during sequential request? */ if (timeout != 0) { dlg->lifetime = timeout; if (update_dlg_timer( &dlg->tl, dlg->lifetime )==-1) LM_ERR("failed to update dialog lifetime\n"); } if ( event!=DLG_EVENT_REQACK ) { if (dst_leg==-1 || switch_cseqs(dlg, dst_leg) != 0 || update_cseqs(dlg,req,dst_leg,0)) { ok = 0; LM_ERR("cseqs update failed on leg=%d\n",dst_leg); } if (req->first_line.u.request.method_value == METHOD_INVITE) { if (dst_leg == DLG_CALLER_LEG) src_leg = callee_idx(dlg); else src_leg = DLG_CALLER_LEG; if (update_cseqs(dlg,req,src_leg,1) != 0) { ok=0; LM_ERR("failed to update inv cseq on leg %d\n",src_leg); } } if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { dlg_lock (d_table, d_entry); if (dlg->legs[dst_leg].last_gen_cseq) { update_val = ++(dlg->legs[dst_leg].last_gen_cseq); dlg_unlock( d_table, d_entry ); if (update_msg_cseq(req,0,update_val) != 0) { LM_ERR("failed to update sequential request msg cseq\n"); ok = 0; } } else dlg_unlock( d_table, d_entry ); } if (ok) { dlg->flags |= DLG_FLAG_CHANGED; if ( dlg_db_mode==DB_MODE_REALTIME ) update_dialog_dbinfo(dlg); if (replication_dests) replicate_dialog_updated(dlg); } } else { if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { dlg_lock (d_table, d_entry); if (dlg->legs[dst_leg].last_gen_cseq) { update_val = dlg->legs[dst_leg].last_gen_cseq; dlg_unlock( d_table, d_entry ); if (update_msg_cseq(req,0,update_val) != 0) { LM_ERR("failed to update ACK msg cseq\n"); } } else dlg_unlock( d_table, d_entry ); } } if ( event!=DLG_EVENT_REQACK) { /* register callback for the replies of this request */ if (dlg->flags & DLG_FLAG_PING_CALLER || dlg->flags & DLG_FLAG_PING_CALLEE) { dlg_lock( d_table, d_entry); if (dlg->legs[dst_leg].last_gen_cseq) { /* ref the dialog as registered into the transaction callback. * unref will be done when the callback will be destroyed */ ref_dlg_unsafe( dlg, 1); dlg_unlock( d_table,d_entry); if(parse_headers(req, HDR_CSEQ_F, 0) <0 ) { LM_ERR("failed to parse cseq header \n"); unref_dlg(dlg,1); goto early_check; } msg_cseq = &((struct cseq_body *)req->cseq->parsed)->number; dlg_cseq_wrapper *wrap = shm_malloc(sizeof(dlg_cseq_wrapper) + msg_cseq->len); if (wrap == 0){ LM_ERR("No more shm mem\n"); unref_dlg(dlg, 1); goto early_check; } wrap->dlg = dlg; wrap->cseq.s = (char *)(wrap + 1); wrap->cseq.len = msg_cseq->len; memcpy(wrap->cseq.s,msg_cseq->s,msg_cseq->len); if ( d_tmb.register_tmcb( req, 0, TMCB_RESPONSE_FWDED, (dir==DLG_DIR_UPSTREAM)?dlg_seq_down_onreply_mod_cseq:dlg_seq_up_onreply_mod_cseq, (void*)wrap, unreference_dialog_cseq)<0 ) { LM_ERR("failed to register TMCB (2)\n"); unref_dlg( dlg , 1); shm_free(wrap); } } else { /* dialog is in ping timer list * but no pings have been generated yet */ dlg_unlock ( d_table, d_entry ); goto regular_indlg_req; } } else { regular_indlg_req: if (dlg->cbs.types & DLGCB_RESPONSE_WITHIN) { ref_dlg( dlg , 1); if ( d_tmb.register_tmcb( req, 0, TMCB_RESPONSE_FWDED, (dir==DLG_DIR_UPSTREAM)?dlg_seq_down_onreply:dlg_seq_up_onreply, (void*)dlg, unreference_dialog)<0 ) { LM_ERR("failed to register TMCB (2)\n"); unref_dlg( dlg , 1); } } } } } early_check: if ( (event==DLG_EVENT_REQPRACK || event == DLG_EVENT_REQ) && new_state==DLG_STATE_EARLY) { /* within dialog request */ run_dlg_callbacks( DLGCB_REQ_WITHIN, dlg, req, dir, 0); LM_DBG("EARLY event %d successfully processed (dst_leg=%d)\n",event,dst_leg); if (dst_leg==-1 || switch_cseqs(dlg, dst_leg) != 0 || update_cseqs(dlg,req,dst_leg,0)) LM_ERR("cseqs update failed on leg=%d\n",dst_leg); } if(new_state==DLG_STATE_CONFIRMED && old_state==DLG_STATE_CONFIRMED_NA){ dlg->flags |= DLG_FLAG_CHANGED; if(dlg_db_mode == DB_MODE_REALTIME) update_dialog_dbinfo(dlg); if (replication_dests) replicate_dialog_updated(dlg); } return; }
void PluginRadioButtonBinding::save_() const { if (psi().SendDlgMessage(get_dlg(), DM_GETCHECK, get_index(), nullptr)) { *Value = m_rg_index; } }
/*! * \brief Function that is registered as RR callback for dialog tracking * * Function that is registered as RR callback for dialog tracking. It * sets the appropriate events after the SIP method and run the state * machine to update the dialog state. It updates then the saved * dialogs and also the statistics. * \param req SIP request * \param route_params record-route parameter * \param param unused */ void dlg_onroute(struct sip_msg* req, str *route_params, void *param) { struct dlg_cell *dlg; str val, callid, ftag, ttag; int h_entry, h_id, new_state, old_state, unref, event, timeout; unsigned int dir; int ret = 0; if (current_dlg_pointer != NULL) return; /* skip initial requests - they may end up here because of the * preloaded route */ if ((!req->to && parse_headers(req, HDR_TO_F, 0) < 0) || !req->to) { LM_ERR("bad request or missing TO hdr :-/\n"); return; } if (get_to(req)->tag_value.len == 0) return; dlg = 0; dir = DLG_DIR_NONE; if (seq_match_mode != SEQ_MATCH_NO_ID) { if (d_rrb.get_route_param(req, &rr_param, &val) != 0) { LM_DBG("Route param '%.*s' not found\n", rr_param.len, rr_param.s); if (seq_match_mode == SEQ_MATCH_STRICT_ID) return; } else { LM_DBG("route param is '%.*s' (len=%d)\n", val.len, val.s, val.len); if (parse_dlg_rr_param(val.s, val.s + val.len, &h_entry, &h_id) < 0) return; dlg = lookup_dlg(h_entry, h_id); if (dlg == 0) { LM_WARN("unable to find dialog for %.*s " "with route param '%.*s' [%u:%u]\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, val.len, val.s, h_entry, h_id); if (seq_match_mode == SEQ_MATCH_STRICT_ID) return; } else { if (pre_match_parse(req, &callid, &ftag, &ttag, 1) < 0) { // lookup_dlg has incremented the ref count by 1 unref_dlg(dlg, 1); return; } if (match_dialog(dlg, &callid, &ftag, &ttag, &dir) == 0) { LM_WARN("tight matching failed for %.*s with callid='%.*s'/%d, " "ftag='%.*s'/%d, ttag='%.*s'/%d and direction=%d\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s, callid.len, callid.s, callid.len, ftag.len, ftag.s, ftag.len, ttag.len, ttag.s, ttag.len, dir); LM_WARN("dialog identification elements are callid='%.*s'/%d, " "caller tag='%.*s'/%d\n", dlg->callid.len, dlg->callid.s, dlg->callid.len, dlg->from_tag.len, dlg->from_tag.s, dlg->from_tag.len); // lookup_dlg has incremented the ref count by 1 unref_dlg(dlg, 1); // Reset variables in order to do a lookup based on SIP-Elements. dlg = 0; dir = DLG_DIR_NONE; if (seq_match_mode == SEQ_MATCH_STRICT_ID) return; } } } } if (dlg == 0) { if (pre_match_parse(req, &callid, &ftag, &ttag, 1) < 0) return; /* TODO - try to use the RR dir detection to speed up here the * search -bogdan */ dlg = get_dlg(&callid, &ftag, &ttag, &dir); if (!dlg) { LM_DBG("Callid '%.*s' not found\n", req->callid->body.len, req->callid->body.s); return; } } /* set current dialog - re-use ref increment from dlg_get() above */ set_current_dialog(req, dlg); _dlg_ctx.dlg = dlg; if (d_tmb.register_tmcb(req, NULL, TMCB_REQUEST_FWDED, store_dlg_in_tm_cb, (void*) dlg, NULL) < 0) { LM_ERR("failed to store dialog in transaction during dialog creation for later reference\n"); } /* run state machine */ switch (req->first_line.u.request.method_value) { case METHOD_PRACK: event = DLG_EVENT_REQPRACK; break; case METHOD_ACK: event = DLG_EVENT_REQACK; break; case METHOD_BYE: event = DLG_EVENT_REQBYE; break; default: event = DLG_EVENT_REQ; } next_state_dlg(dlg, event, &old_state, &new_state, &unref, 0); LM_DBG("unref after next state is %i\n", unref); CURR_DLG_ID = req->id; CURR_DLG_LIFETIME = (unsigned int) (time(0)) - dlg->start_ts; CURR_DLG_STATUS = new_state; /* run actions for the transition */ if (event == DLG_EVENT_REQBYE && new_state == DLG_STATE_DELETED && old_state != DLG_STATE_DELETED) { LM_DBG("BYE successfully processed\n"); /* remove from timer */ ret = remove_dialog_timer(&dlg->tl); if (ret < 0) { LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s'\n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->from_tag.len, dlg->from_tag.s); } else if (ret > 0) { LM_WARN("inconsitent dlg timer data on dlg %p [%u:%u] " "with clid '%.*s' and tags '%.*s' \n", dlg, dlg->h_entry, dlg->h_id, dlg->callid.len, dlg->callid.s, dlg->from_tag.len, dlg->from_tag.s); } else { unref++; } /* dialog terminated (BYE) */ dlg_terminated(req, dlg, dir); unref_dlg(dlg, unref); return; } if ((event == DLG_EVENT_REQ || event == DLG_EVENT_REQACK) && new_state == DLG_STATE_CONFIRMED) { timeout = get_dlg_timeout(req); if (timeout != default_timeout) { dlg->lifetime = timeout; } if (update_dlg_timer(&dlg->tl, dlg->lifetime) == -1) { LM_ERR("failed to update dialog lifetime\n"); } if (update_cseqs(dlg, req, dir, &ttag) != 0) { LM_ERR("cseqs update failed\n"); } else { dlg->dflags |= DLG_FLAG_CHANGED; } if (old_state != DLG_STATE_CONFIRMED) { LM_DBG("confirming ACK successfully processed\n"); /* confirming ACK request */ run_dlg_callbacks(DLGCB_CONFIRMED, dlg, req, NULL, dir, 0); } else { LM_DBG("sequential request successfully processed\n"); /* within dialog request */ run_dlg_callbacks(DLGCB_REQ_WITHIN, dlg, req, NULL, dir, 0); if ((event != DLG_EVENT_REQACK) && (dlg->cbs.types) & DLGCB_RESPONSE_WITHIN) { /* ref the dialog as registered into the transaction callback. * unref will be done when the callback will be destroyed */ ref_dlg(dlg, 1); /* register callback for the replies of this request */ if (d_tmb.register_tmcb(req, 0, TMCB_RESPONSE_FWDED, (dir == DLG_DIR_UPSTREAM) ? dlg_seq_down_onreply : dlg_seq_up_onreply, (void*) dlg, unreference_dialog) < 0) { LM_ERR("failed to register TMCB (2)\n"); unref_dlg(dlg, 1); } } } } if (new_state == DLG_STATE_CONFIRMED && old_state != DLG_STATE_CONFIRMED) { dlg->dflags |= DLG_FLAG_CHANGED; } return; }
/* TODO: add reason parameter to mi interface */ struct mi_root * mi_terminate_dlg(struct mi_root *cmd_tree, void *param) { struct mi_node* node; struct dlg_cell * dlg = NULL; str mi_extra_hdrs = {NULL, 0}; int status, msg_len; char *msg; str callid = {NULL, 0}; str ftag = {NULL, 0}; str ttag = {NULL, 0}; if (d_table == NULL) goto end; node = cmd_tree->node.kids; if (node == NULL || node->next == NULL || node->next->next == NULL) return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN); if (!node->value.s || !node->value.len) { goto error; } else { callid = node->value; } node = node->next; if (!node->value.s || !node->value.len) { goto error; } else { ftag = node->value; } node = node->next; if (!node->value.s || !node->value.len) { goto error; } else { ttag = node->value; } if (node->next) { node = node->next; if (node->value.len && node->value.s) mi_extra_hdrs = node->value; } unsigned int dir = DLG_DIR_NONE; LM_DBG("Looking for callid [%.*s]\n", callid.len, callid.s); dlg = get_dlg(&callid, &ftag, &ttag, &dir); //increments ref count! if (dlg) { LM_DBG("Found dialog to terminate and it is in state [%i]\n", dlg->state); if (dlg_terminate(dlg, 0, NULL/*reson*/, /* all sides of a dialog*/ 2, &mi_extra_hdrs) < 0) { status = 500; msg = MI_DLG_OPERATION_ERR; msg_len = MI_DLG_OPERATION_ERR_LEN; } else { status = 200; msg = MI_OK_S; msg_len = MI_OK_LEN; } unref_dlg(dlg, 1); return init_mi_tree(status, msg, msg_len); } end: return init_mi_tree(404, MI_DIALOG_NOT_FOUND, MI_DIALOG_NOT_FOUND_LEN); error: return init_mi_tree(400, MI_BAD_PARM_S, MI_BAD_PARM_LEN); }
/*! * \brief Create a new dialog from a sip message * * Create a new dialog from a SIP message, register a callback * to keep track of the dialog with help of the tm module. * This function is either called from the request callback, or * from the dlg_manage function in the configuration script. * \see dlg_onreq * \see w_dlg_manage * \param msg SIP message * \param t transaction * \return 0 on success, -1 on failure */ int dlg_new_dialog(struct sip_msg *req, struct cell *t, const int run_initial_cbs) { struct dlg_cell *dlg; str s; str callid; str ftag; str ttag; str req_uri; unsigned int dir; LM_DBG("starting dlg_new_dialog and method is [%.*s]\n", req->first_line.u.request.method.len, req->first_line.u.request.method.s); if (current_dlg_pointer != NULL) return -1; if (req->first_line.u.request.method_value == METHOD_CANCEL) return -1; if (pre_match_parse(req, &callid, &ftag, &ttag, 0) < 0) { LM_WARN("pre-matching failed\n"); return -1; } if (ttag.s != 0 && ttag.len != 0) return -1; if (pv_printf_s(req, ruri_param_model, &req_uri) < 0) { LM_ERR("error - cannot print the r-uri format\n"); return -1; } trim(&req_uri); if (detect_spirals) { if (spiral_detected == 1) return 0; dir = DLG_DIR_NONE; dlg = get_dlg(&callid, &ftag, &ttag, &dir); if (dlg) { LM_DBG("Callid '%.*s' found, must be a spiraled request\n", callid.len, callid.s); spiral_detected = 1; if (run_initial_cbs) run_dlg_callbacks(DLGCB_SPIRALED, dlg, req, NULL, DLG_DIR_DOWNSTREAM, 0); //Add did to rr header for all spiralled requested INVITEs if (req->first_line.u.request.method_value == METHOD_INVITE) { if (add_dlg_rr_param(dlg, req, dlg->h_entry, dlg->h_id) < 0) { LM_ERR("failed to add RR param\n"); } } // get_dlg has incremented the ref count by 1 unref_dlg(dlg, 1); goto finish; } } spiral_detected = 0; LM_DBG("Building new Dialog for call-id %.*s\n", callid.len, callid.s); LM_DBG("SIP Method: %.*s \n", req->first_line.u.request.method.len, req->first_line.u.request.method.s); dlg = build_new_dlg(&callid /*callid*/, &(get_from(req)->uri) /*from uri*/, &ftag/*from_tag*/, &req_uri /*r-uri*/); if (dlg == 0) { LM_ERR("failed to create new dialog\n"); return -1; } /* save caller's tag, cseq, contact and record route*/ if (populate_leg_info(dlg, req, t, DLG_CALLER_LEG, &(get_from(req)->tag_value)) != 0) { LM_ERR("could not add further info to the dialog\n"); lock_destroy(dlg->dlg_out_entries_lock); lock_dealloc(dlg->dlg_out_entries_lock); shm_free(dlg); return -1; } dlg->transaction = t; /* Populate initial varlist: */ dlg->vars = get_local_varlist_pointer(req, 1); link_dlg(dlg, 0); if (run_initial_cbs) run_create_callbacks(dlg, req); //Dialog will *always* use DID cookie so no need for match mode anymore if (add_dlg_rr_param(dlg, req, dlg->h_entry, dlg->h_id) < 0) { LM_ERR("failed to add RR param\n"); goto error; } if (d_tmb.register_tmcb(req, t, TMCB_RESPONSE_READY | TMCB_RESPONSE_FWDED | TMCB_RESPONSE_OUT, dlg_onreply, (void*) dlg, unref_new_dialog) < 0) { LM_ERR("failed to register TMCB\n"); goto error; } // increase reference counter because of registered callback ref_dlg(dlg, 1); dlg->lifetime = get_dlg_timeout(req); s.s = _dlg_ctx.to_route_name; s.len = strlen(s.s); dlg_set_toroute(dlg, &s); dlg->sflags |= _dlg_ctx.flags; if (_dlg_ctx.to_bye != 0) dlg->dflags |= DLG_FLAG_TOBYE; finish: if (t) { // transaction exists ==> keep ref counter large enough to // avoid premature cleanup and ensure proper dialog referencing if (store_dlg_in_tm(req, t, dlg) < 0) { LM_ERR("failed to store dialog in transaction\n"); goto error; } } else { // no transaction exists ==> postpone work until we see the // request being forwarded statefully if (d_tmb.register_tmcb(req, NULL, TMCB_REQUEST_FWDED, store_dlg_in_tm_cb, (void*) dlg, NULL) < 0) { LM_ERR("failed to register callback for storing dialog in transaction\n"); goto error; } } LM_DBG("Setting current dialog\n"); set_current_dialog(req, dlg); _dlg_ctx.dlg = dlg; ref_dlg(dlg, 1); return 0; error: LM_DBG("Error in build_new_dlg"); if (!spiral_detected) unref_dlg(dlg, 1); // undo ref regarding linking return -1; }
/*! * \brief Create a new dialog from a sip message * * Create a new dialog from a SIP message, register a callback * to keep track of the dialog with help of the tm module. * This function is either called from the request callback, or * from the dlg_manage function in the configuration script. * \see dlg_onreq * \see w_dlg_manage * \param req SIP message * \param t transaction * \param run_initial_cbs if set zero, initial callbacks are not executed * \return 0 on success, -1 on failure */ int dlg_new_dialog(sip_msg_t *req, struct cell *t, const int run_initial_cbs) { dlg_cell_t *dlg; str s; str callid; str ftag; str ttag; str req_uri; unsigned int dir; dlg = dlg_get_ctx_dialog(); if(dlg != NULL) { dlg_release(dlg); return -1; } if(req->first_line.u.request.method_value != METHOD_INVITE) return -1; if(pre_match_parse( req, &callid, &ftag, &ttag, 0)<0) { LM_WARN("pre-matching failed\n"); return -1; } if(ttag.s!=0 && ttag.len!=0) return -1; if(pv_printf_s(req, ruri_param_model, &req_uri)<0) { LM_ERR("error - cannot print the r-uri format\n"); return -1; } trim(&req_uri); if (detect_spirals) { if (spiral_detected == 1) return 0; dir = DLG_DIR_NONE; dlg = get_dlg(&callid, &ftag, &ttag, &dir); if (dlg) { if ( dlg->state != DLG_STATE_DELETED ) { LM_DBG("Callid '%.*s' found, must be a spiraled request\n", callid.len, callid.s); spiral_detected = 1; if (run_initial_cbs) run_dlg_callbacks( DLGCB_SPIRALED, dlg, req, NULL, DLG_DIR_DOWNSTREAM, 0); /* get_dlg() has incremented the ref count by 1 * - it's ok, dlg will be unref at the end of function */ goto finish; } dlg_release(dlg); } } spiral_detected = 0; dlg = build_new_dlg (&callid /*callid*/, &(get_from(req)->uri) /*from uri*/, &(get_to(req)->uri) /*to uri*/, &ftag/*from_tag*/, &req_uri /*r-uri*/ ); if (dlg==0) { LM_ERR("failed to create new dialog\n"); return -1; } /* save caller's tag, cseq, contact and record route*/ if (populate_leg_info(dlg, req, t, DLG_CALLER_LEG, &(get_from(req)->tag_value)) !=0) { LM_ERR("could not add further info to the dialog\n"); shm_free(dlg); return -1; } /* Populate initial varlist: */ dlg->vars = get_local_varlist_pointer(req, 1); link_dlg(dlg, 0); dlg->lifetime = get_dlg_timeout(req); s.s = _dlg_ctx.to_route_name; s.len = strlen(s.s); dlg_set_toroute(dlg, &s); dlg->sflags |= _dlg_ctx.flags; dlg->iflags |= _dlg_ctx.iflags; if (dlg_send_bye!=0 || _dlg_ctx.to_bye!=0) dlg->iflags |= DLG_IFLAG_TIMEOUTBYE; if (run_initial_cbs) run_create_callbacks( dlg, req); /* first INVITE seen (dialog created, unconfirmed) */ if ( seq_match_mode!=SEQ_MATCH_NO_ID && add_dlg_rr_param( req, dlg->h_entry, dlg->h_id)<0 ) { LM_ERR("failed to add RR param\n"); goto error; } /* new dlg - reference it once more for current dialog iuid shortcut */ dlg_ref(dlg, 1); if_update_stat( dlg_enable_stats, processed_dlgs, 1); finish: _dlg_ctx.iuid.h_entry = dlg->h_entry; _dlg_ctx.iuid.h_id = dlg->h_id; set_current_dialog(req, dlg); dlg_release(dlg); return 0; error: if (!spiral_detected) dlg_unref(dlg, 1); // undo ref regarding linking return -1; }