static int loopback_exec(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) { int found; LOOPBACK_COMMON; res = ast_spawn_extension(chan, newcontext, newexten, newpriority, callerid, &found, 0); return res; }
static int loopback_exec(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data) { LOOPBACK_COMMON; res = ast_spawn_extension(chan, newcontext, newexten, newpriority, callerid); /* XXX hmmm... res is overridden ? */ if (newpattern && !ast_extension_match(newpattern, exten)) res = -1; return res; }
static int macro_exec(struct ast_channel *chan, void *data) { char *tmp; char *cur, *rest; char *macro; char fullmacro[80]; char varname[80]; char *oldargs[MAX_ARGS + 1] = { NULL, }; int argc, x; int res=0; char oldexten[256]=""; int oldpriority; char pc[80], depthc[12]; char oldcontext[AST_MAX_CONTEXT] = ""; char *offsets; int offset, depth; int setmacrocontext=0; int autoloopflag; char *save_macro_exten; char *save_macro_context; char *save_macro_priority; char *save_macro_offset; struct localuser *u; if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "Macro() requires arguments. See \"show application macro\" for help.\n"); return -1; } LOCAL_USER_ADD(u); /* Count how many levels deep the rabbit hole goes */ tmp = pbx_builtin_getvar_helper(chan, "MACRO_DEPTH"); if (tmp) { sscanf(tmp, "%d", &depth); } else { depth = 0; } if (depth >= 7) { ast_log(LOG_ERROR, "Macro(): possible infinite loop detected. Returning early.\n"); LOCAL_USER_REMOVE(u); return 0; } snprintf(depthc, sizeof(depthc), "%d", depth + 1); pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); tmp = ast_strdupa(data); rest = tmp; macro = strsep(&rest, "|"); if (ast_strlen_zero(macro)) { ast_log(LOG_WARNING, "Invalid macro name specified\n"); LOCAL_USER_REMOVE(u); return 0; } snprintf(fullmacro, sizeof(fullmacro), "macro-%s", macro); if (!ast_exists_extension(chan, fullmacro, "s", 1, chan->cid.cid_num)) { if (!ast_context_find(fullmacro)) ast_log(LOG_WARNING, "No such context '%s' for macro '%s'\n", fullmacro, macro); else ast_log(LOG_WARNING, "Context '%s' for macro '%s' lacks 's' extension, priority 1\n", fullmacro, macro); LOCAL_USER_REMOVE(u); return 0; } /* Save old info */ oldpriority = chan->priority; ast_copy_string(oldexten, chan->exten, sizeof(oldexten)); ast_copy_string(oldcontext, chan->context, sizeof(oldcontext)); if (ast_strlen_zero(chan->macrocontext)) { ast_copy_string(chan->macrocontext, chan->context, sizeof(chan->macrocontext)); ast_copy_string(chan->macroexten, chan->exten, sizeof(chan->macroexten)); chan->macropriority = chan->priority; setmacrocontext=1; } argc = 1; /* Save old macro variables */ save_macro_exten = pbx_builtin_getvar_helper(chan, "MACRO_EXTEN"); if (save_macro_exten) save_macro_exten = strdup(save_macro_exten); pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", oldexten); save_macro_context = pbx_builtin_getvar_helper(chan, "MACRO_CONTEXT"); if (save_macro_context) save_macro_context = strdup(save_macro_context); pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", oldcontext); save_macro_priority = pbx_builtin_getvar_helper(chan, "MACRO_PRIORITY"); if (save_macro_priority) save_macro_priority = strdup(save_macro_priority); snprintf(pc, sizeof(pc), "%d", oldpriority); pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", pc); save_macro_offset = pbx_builtin_getvar_helper(chan, "MACRO_OFFSET"); if (save_macro_offset) save_macro_offset = strdup(save_macro_offset); pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", NULL); /* Setup environment for new run */ chan->exten[0] = 's'; chan->exten[1] = '\0'; ast_copy_string(chan->context, fullmacro, sizeof(chan->context)); chan->priority = 1; while((cur = strsep(&rest, "|")) && (argc < MAX_ARGS)) { /* Save copy of old arguments if we're overwriting some, otherwise let them pass through to the other macro */ snprintf(varname, sizeof(varname), "ARG%d", argc); oldargs[argc] = pbx_builtin_getvar_helper(chan, varname); if (oldargs[argc]) oldargs[argc] = strdup(oldargs[argc]); pbx_builtin_setvar_helper(chan, varname, cur); argc++; } autoloopflag = ast_test_flag(chan, AST_FLAG_IN_AUTOLOOP); ast_set_flag(chan, AST_FLAG_IN_AUTOLOOP); while(ast_exists_extension(chan, chan->context, chan->exten, chan->priority, chan->cid.cid_num)) { /* Reset the macro depth, if it was changed in the last iteration */ pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); if ((res = ast_spawn_extension(chan, chan->context, chan->exten, chan->priority, chan->cid.cid_num))) { /* Something bad happened, or a hangup has been requested. */ if (((res >= '0') && (res <= '9')) || ((res >= 'A') && (res <= 'F')) || (res == '*') || (res == '#')) { /* Just return result as to the previous application as if it had been dialed */ ast_log(LOG_DEBUG, "Oooh, got something to jump out with ('%c')!\n", res); break; } switch(res) { case MACRO_EXIT_RESULT: res = 0; goto out; case AST_PBX_KEEPALIVE: if (option_debug) ast_log(LOG_DEBUG, "Spawn extension (%s,%s,%d) exited KEEPALIVE in macro %s on '%s'\n", chan->context, chan->exten, chan->priority, macro, chan->name); else if (option_verbose > 1) ast_verbose( VERBOSE_PREFIX_2 "Spawn extension (%s, %s, %d) exited KEEPALIVE in macro '%s' on '%s'\n", chan->context, chan->exten, chan->priority, macro, chan->name); goto out; break; default: if (option_debug) ast_log(LOG_DEBUG, "Spawn extension (%s,%s,%d) exited non-zero on '%s' in macro '%s'\n", chan->context, chan->exten, chan->priority, chan->name, macro); else if (option_verbose > 1) ast_verbose( VERBOSE_PREFIX_2 "Spawn extension (%s, %s, %d) exited non-zero on '%s' in macro '%s'\n", chan->context, chan->exten, chan->priority, chan->name, macro); goto out; } } if (strcasecmp(chan->context, fullmacro)) { if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "Channel '%s' jumping out of macro '%s'\n", chan->name, macro); break; } /* don't stop executing extensions when we're in "h" */ if (chan->_softhangup && strcasecmp(oldexten,"h")) { ast_log(LOG_DEBUG, "Extension %s, priority %d returned normally even though call was hung up\n", chan->exten, chan->priority); goto out; } chan->priority++; } out: /* Reset the depth back to what it was when the routine was entered (like if we called Macro recursively) */ snprintf(depthc, sizeof(depthc), "%d", depth); pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); ast_set2_flag(chan, autoloopflag, AST_FLAG_IN_AUTOLOOP); for (x=1; x<argc; x++) { /* Restore old arguments and delete ours */ snprintf(varname, sizeof(varname), "ARG%d", x); if (oldargs[x]) { pbx_builtin_setvar_helper(chan, varname, oldargs[x]); free(oldargs[x]); } else { pbx_builtin_setvar_helper(chan, varname, NULL); } } /* Restore macro variables */ pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", save_macro_exten); if (save_macro_exten) free(save_macro_exten); pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", save_macro_context); if (save_macro_context) free(save_macro_context); pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", save_macro_priority); if (save_macro_priority) free(save_macro_priority); if (setmacrocontext) { chan->macrocontext[0] = '\0'; chan->macroexten[0] = '\0'; chan->macropriority = 0; } if (!strcasecmp(chan->context, fullmacro)) { /* If we're leaving the macro normally, restore original information */ chan->priority = oldpriority; ast_copy_string(chan->context, oldcontext, sizeof(chan->context)); if (!(chan->_softhangup & AST_SOFTHANGUP_ASYNCGOTO)) { /* Copy the extension, so long as we're not in softhangup, where we could be given an asyncgoto */ ast_copy_string(chan->exten, oldexten, sizeof(chan->exten)); if ((offsets = pbx_builtin_getvar_helper(chan, "MACRO_OFFSET"))) { /* Handle macro offset if it's set by checking the availability of step n + offset + 1, otherwise continue normally if there is any problem */ if (sscanf(offsets, "%d", &offset) == 1) { if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + offset + 1, chan->cid.cid_num)) { chan->priority += offset; } } } } } pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", save_macro_offset); if (save_macro_offset) free(save_macro_offset); LOCAL_USER_REMOVE(u); return res; }
static int _macro_exec(struct ast_channel *chan, const char *data, int exclusive) { const char *s; char *tmp; char *cur, *rest; char *macro; char fullmacro[80]; char varname[80]; char runningapp[80], runningdata[1024]; char *oldargs[MAX_ARGS + 1] = { NULL, }; int argc, x; int res=0; char oldexten[256]=""; int oldpriority, gosub_level = 0; char pc[80], depthc[12]; char oldcontext[AST_MAX_CONTEXT] = ""; const char *inhangupc; int offset, depth = 0, maxdepth = 7; int setmacrocontext=0; int autoloopflag, inhangup = 0; struct ast_str *tmp_subst = NULL; char *save_macro_exten; char *save_macro_context; char *save_macro_priority; char *save_macro_offset; struct ast_datastore *macro_store = ast_channel_datastore_find(chan, ¯o_ds_info, NULL); if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "Macro() requires arguments. See \"core show application macro\" for help.\n"); return -1; } do { if (macro_store) { break; } if (!(macro_store = ast_datastore_alloc(¯o_ds_info, NULL))) { ast_log(LOG_WARNING, "Unable to allocate new datastore.\n"); break; } /* Just the existence of this datastore is enough. */ macro_store->inheritance = DATASTORE_INHERIT_FOREVER; ast_channel_datastore_add(chan, macro_store); } while (0); /* does the user want a deeper rabbit hole? */ ast_channel_lock(chan); if ((s = pbx_builtin_getvar_helper(chan, "MACRO_RECURSION"))) { sscanf(s, "%30d", &maxdepth); } /* Count how many levels deep the rabbit hole goes */ if ((s = pbx_builtin_getvar_helper(chan, "MACRO_DEPTH"))) { sscanf(s, "%30d", &depth); } /* Used for detecting whether to return when a Macro is called from another Macro after hangup */ if (strcmp(ast_channel_exten(chan), "h") == 0) pbx_builtin_setvar_helper(chan, "MACRO_IN_HANGUP", "1"); if ((inhangupc = pbx_builtin_getvar_helper(chan, "MACRO_IN_HANGUP"))) { sscanf(inhangupc, "%30d", &inhangup); } ast_channel_unlock(chan); if (depth >= maxdepth) { ast_log(LOG_ERROR, "Macro(): possible infinite loop detected. Returning early.\n"); return 0; } snprintf(depthc, sizeof(depthc), "%d", depth + 1); tmp = ast_strdupa(data); rest = tmp; macro = strsep(&rest, ","); if (ast_strlen_zero(macro)) { ast_log(LOG_WARNING, "Invalid macro name specified\n"); return 0; } snprintf(fullmacro, sizeof(fullmacro), "macro-%s", macro); if (!ast_exists_extension(chan, fullmacro, "s", 1, S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) { if (!ast_context_find(fullmacro)) ast_log(LOG_WARNING, "No such context '%s' for macro '%s'. Was called by %s@%s\n", fullmacro, macro, ast_channel_exten(chan), ast_channel_context(chan)); else ast_log(LOG_WARNING, "Context '%s' for macro '%s' lacks 's' extension, priority 1\n", fullmacro, macro); return 0; } /* If we are to run the macro exclusively, take the mutex */ if (exclusive) { ast_debug(1, "Locking macrolock for '%s'\n", fullmacro); ast_autoservice_start(chan); if (ast_context_lockmacro(fullmacro)) { ast_log(LOG_WARNING, "Failed to lock macro '%s' as in-use\n", fullmacro); ast_autoservice_stop(chan); return 0; } ast_autoservice_stop(chan); } if (!(tmp_subst = ast_str_create(16))) { return -1; } /* Save old info */ oldpriority = ast_channel_priority(chan); ast_copy_string(oldexten, ast_channel_exten(chan), sizeof(oldexten)); ast_copy_string(oldcontext, ast_channel_context(chan), sizeof(oldcontext)); if (ast_strlen_zero(ast_channel_macrocontext(chan))) { ast_channel_macrocontext_set(chan, ast_channel_context(chan)); ast_channel_macroexten_set(chan, ast_channel_exten(chan)); ast_channel_macropriority_set(chan, ast_channel_priority(chan)); setmacrocontext=1; } argc = 1; /* Save old macro variables */ save_macro_exten = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_EXTEN")); pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", oldexten); save_macro_context = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_CONTEXT")); pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", oldcontext); save_macro_priority = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_PRIORITY")); snprintf(pc, sizeof(pc), "%d", oldpriority); pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", pc); save_macro_offset = ast_strdup(pbx_builtin_getvar_helper(chan, "MACRO_OFFSET")); pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", NULL); pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); /* Setup environment for new run */ ast_channel_exten_set(chan, "s"); ast_channel_context_set(chan, fullmacro); ast_channel_priority_set(chan, 1); ast_channel_lock(chan); while((cur = strsep(&rest, ",")) && (argc < MAX_ARGS)) { const char *argp; /* Save copy of old arguments if we're overwriting some, otherwise let them pass through to the other macro */ snprintf(varname, sizeof(varname), "ARG%d", argc); if ((argp = pbx_builtin_getvar_helper(chan, varname))) { oldargs[argc] = ast_strdup(argp); } pbx_builtin_setvar_helper(chan, varname, cur); argc++; } ast_channel_unlock(chan); autoloopflag = ast_test_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP); ast_set_flag(ast_channel_flags(chan), AST_FLAG_IN_AUTOLOOP); while (ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) { struct ast_context *c; struct ast_exten *e; int foundx; runningapp[0] = '\0'; runningdata[0] = '\0'; /* What application will execute? */ if (ast_rdlock_contexts()) { ast_log(LOG_WARNING, "Failed to lock contexts list\n"); } else { for (c = ast_walk_contexts(NULL), e = NULL; c; c = ast_walk_contexts(c)) { if (!strcmp(ast_get_context_name(c), ast_channel_context(chan))) { if (ast_rdlock_context(c)) { ast_log(LOG_WARNING, "Unable to lock context?\n"); } else { e = find_matching_priority(c, ast_channel_exten(chan), ast_channel_priority(chan), S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL)); if (e) { /* This will only be undefined for pbx_realtime, which is majorly broken. */ ast_copy_string(runningapp, ast_get_extension_app(e), sizeof(runningapp)); ast_copy_string(runningdata, ast_get_extension_app_data(e), sizeof(runningdata)); } ast_unlock_context(c); } break; } } } ast_unlock_contexts(); /* Reset the macro depth, if it was changed in the last iteration */ pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); res = ast_spawn_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL), &foundx, 1); if (res) { /* Something bad happened, or a hangup has been requested. */ if (((res >= '0') && (res <= '9')) || ((res >= 'A') && (res <= 'F')) || (res == '*') || (res == '#')) { /* Just return result as to the previous application as if it had been dialed */ ast_debug(1, "Oooh, got something to jump out with ('%c')!\n", res); break; } switch(res) { case MACRO_EXIT_RESULT: res = 0; goto out; default: ast_debug(2, "Spawn extension (%s,%s,%d) exited non-zero on '%s' in macro '%s'\n", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), ast_channel_name(chan), macro); ast_verb(2, "Spawn extension (%s, %s, %d) exited non-zero on '%s' in macro '%s'\n", ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan), ast_channel_name(chan), macro); goto out; } } ast_debug(1, "Executed application: %s\n", runningapp); if (!strcasecmp(runningapp, "GOSUB")) { gosub_level++; ast_debug(1, "Incrementing gosub_level\n"); } else if (!strcasecmp(runningapp, "GOSUBIF")) { char *cond, *app_arg; char *app2; ast_str_substitute_variables(&tmp_subst, 0, chan, runningdata); app2 = ast_str_buffer(tmp_subst); cond = strsep(&app2, "?"); app_arg = strsep(&app2, ":"); if (pbx_checkcondition(cond)) { if (!ast_strlen_zero(app_arg)) { gosub_level++; ast_debug(1, "Incrementing gosub_level\n"); } } else { if (!ast_strlen_zero(app2)) { gosub_level++; ast_debug(1, "Incrementing gosub_level\n"); } } } else if (!strcasecmp(runningapp, "RETURN")) { gosub_level--; ast_debug(1, "Decrementing gosub_level\n"); } else if (!strcasecmp(runningapp, "STACKPOP")) { gosub_level--; ast_debug(1, "Decrementing gosub_level\n"); } else if (!strncasecmp(runningapp, "EXEC", 4)) { /* Must evaluate args to find actual app */ char *tmp2, *tmp3 = NULL; ast_str_substitute_variables(&tmp_subst, 0, chan, runningdata); tmp2 = ast_str_buffer(tmp_subst); if (!strcasecmp(runningapp, "EXECIF")) { if ((tmp3 = strchr(tmp2, '|'))) { *tmp3++ = '\0'; } if (!pbx_checkcondition(tmp2)) { tmp3 = NULL; } } else { tmp3 = tmp2; } if (tmp3) { ast_debug(1, "Last app: %s\n", tmp3); } if (tmp3 && !strncasecmp(tmp3, "GOSUB", 5)) { gosub_level++; ast_debug(1, "Incrementing gosub_level\n"); } else if (tmp3 && !strncasecmp(tmp3, "RETURN", 6)) { gosub_level--; ast_debug(1, "Decrementing gosub_level\n"); } else if (tmp3 && !strncasecmp(tmp3, "STACKPOP", 8)) { gosub_level--; ast_debug(1, "Decrementing gosub_level\n"); } } if (gosub_level == 0 && strcasecmp(ast_channel_context(chan), fullmacro)) { ast_verb(2, "Channel '%s' jumping out of macro '%s'\n", ast_channel_name(chan), macro); break; } /* don't stop executing extensions when we're in "h" */ if (ast_check_hangup(chan) && !inhangup) { ast_debug(1, "Extension %s, macroexten %s, priority %d returned normally even though call was hung up\n", ast_channel_exten(chan), ast_channel_macroexten(chan), ast_channel_priority(chan)); goto out; } ast_channel_priority_set(chan, ast_channel_priority(chan) + 1); } out: /* Don't let the channel change now. */ ast_channel_lock(chan); /* Reset the depth back to what it was when the routine was entered (like if we called Macro recursively) */ snprintf(depthc, sizeof(depthc), "%d", depth); pbx_builtin_setvar_helper(chan, "MACRO_DEPTH", depthc); ast_set2_flag(ast_channel_flags(chan), autoloopflag, AST_FLAG_IN_AUTOLOOP); for (x = 1; x < argc; x++) { /* Restore old arguments and delete ours */ snprintf(varname, sizeof(varname), "ARG%d", x); if (oldargs[x]) { pbx_builtin_setvar_helper(chan, varname, oldargs[x]); ast_free(oldargs[x]); } else { pbx_builtin_setvar_helper(chan, varname, NULL); } } /* Restore macro variables */ pbx_builtin_setvar_helper(chan, "MACRO_EXTEN", save_macro_exten); pbx_builtin_setvar_helper(chan, "MACRO_CONTEXT", save_macro_context); pbx_builtin_setvar_helper(chan, "MACRO_PRIORITY", save_macro_priority); if (save_macro_exten) ast_free(save_macro_exten); if (save_macro_context) ast_free(save_macro_context); if (save_macro_priority) ast_free(save_macro_priority); if (setmacrocontext) { ast_channel_macrocontext_set(chan, ""); ast_channel_macroexten_set(chan, ""); ast_channel_macropriority_set(chan, 0); } if (!strcasecmp(ast_channel_context(chan), fullmacro)) { const char *offsets; /* If we're leaving the macro normally, restore original information */ ast_channel_priority_set(chan, oldpriority); ast_channel_context_set(chan, oldcontext); ast_channel_exten_set(chan, oldexten); if ((offsets = pbx_builtin_getvar_helper(chan, "MACRO_OFFSET"))) { /* Handle macro offset if it's set by checking the availability of step n + offset + 1, otherwise continue normally if there is any problem */ if (sscanf(offsets, "%30d", &offset) == 1) { if (ast_exists_extension(chan, ast_channel_context(chan), ast_channel_exten(chan), ast_channel_priority(chan) + offset + 1, S_COR(ast_channel_caller(chan)->id.number.valid, ast_channel_caller(chan)->id.number.str, NULL))) { ast_channel_priority_set(chan, ast_channel_priority(chan) + offset); } } } } pbx_builtin_setvar_helper(chan, "MACRO_OFFSET", save_macro_offset); if (save_macro_offset) ast_free(save_macro_offset); /* Unlock the macro */ if (exclusive) { ast_debug(1, "Unlocking macrolock for '%s'\n", fullmacro); if (ast_context_unlockmacro(fullmacro)) { ast_log(LOG_ERROR, "Failed to unlock macro '%s' - that isn't good\n", fullmacro); res = 0; } } ast_channel_unlock(chan); ast_free(tmp_subst); return res; }