Also prevents other potential crashes when using aco API with uninitialized aco_info structs. (closes issue ASTERISK-20305) reported by Noah Engelberth Tested by Noah Engelberth Review: https://reviewboard.asterisk.org/r/2086 ........ Merged revisions 372135 from http://svn.asterisk.org/svn/asterisk/branches/11 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@372136 65c4cc65-6c06-0410-ace0-fbb531ad65f3
877 lines
26 KiB
C
877 lines
26 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2012, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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* \brief Configuration Option-handling
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* \author Terry Wilson <twilson@digium.com>
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <regex.h>
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#include "asterisk/config.h"
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#include "asterisk/config_options.h"
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#include "asterisk/stringfields.h"
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#include "asterisk/acl.h"
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#include "asterisk/frame.h"
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#ifdef LOW_MEMORY
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#define CONFIG_OPT_BUCKETS 5
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#else
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#define CONFIG_OPT_BUCKETS 53
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#endif /* LOW_MEMORY */
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/*! \brief Bits of aco_info that shouldn't be assigned outside this file
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* \internal
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*/
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struct aco_info_internal {
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void *pending; /*!< The user-defined config object awaiting application */
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};
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struct aco_type_internal {
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regex_t *regex;
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struct ao2_container *opts; /*!< The container of options registered to the aco_info */
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};
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struct aco_option {
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const char *name;
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const char *aliased_to;
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const char *default_val;
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enum aco_matchtype match_type;
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regex_t *name_regex;
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struct aco_type **obj;
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enum aco_option_type type;
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aco_option_handler handler;
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unsigned int flags;
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unsigned char deprecated:1;
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size_t argc;
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intptr_t args[0];
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};
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void *aco_pending_config(struct aco_info *info)
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{
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if (!(info && info->internal)) {
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ast_log(LOG_ERROR, "This may not be called without an initialized aco_info!\n");
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return NULL;
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}
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return info->internal->pending;
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}
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static void config_option_destroy(void *obj)
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{
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struct aco_option *opt = obj;
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if (opt->match_type == ACO_REGEX && opt->name_regex) {
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regfree(opt->name_regex);
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ast_free(opt->name_regex);
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}
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}
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static int int_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int uint_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int double_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int sockaddr_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int stringfield_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int bool_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int boolflag_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int acl_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int codec_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int noop_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static int chararray_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj);
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static aco_option_handler ast_config_option_default_handler(enum aco_option_type type)
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{
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switch(type) {
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case OPT_ACL_T: return acl_handler_fn;
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case OPT_BOOL_T: return bool_handler_fn;
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case OPT_BOOLFLAG_T: return boolflag_handler_fn;
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case OPT_CHAR_ARRAY_T: return chararray_handler_fn;
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case OPT_CODEC_T: return codec_handler_fn;
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case OPT_DOUBLE_T: return double_handler_fn;
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case OPT_INT_T: return int_handler_fn;
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case OPT_NOOP_T: return noop_handler_fn;
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case OPT_SOCKADDR_T: return sockaddr_handler_fn;
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case OPT_STRINGFIELD_T: return stringfield_handler_fn;
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case OPT_UINT_T: return uint_handler_fn;
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case OPT_CUSTOM_T: return NULL;
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}
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return NULL;
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}
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static regex_t *build_regex(const char *text)
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{
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int res;
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regex_t *regex;
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if (!(regex = ast_malloc(sizeof(*regex)))) {
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return NULL;
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}
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if ((res = regcomp(regex, text, REG_EXTENDED | REG_ICASE | REG_NOSUB))) {
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size_t len = regerror(res, regex, NULL, 0);
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char buf[len];
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regerror(res, regex, buf, len);
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ast_log(LOG_ERROR, "Could not compile regex '%s': %s\n", text, buf);
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ast_free(regex);
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return NULL;
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}
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return regex;
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}
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static int link_option_to_types(struct aco_type **types, struct aco_option *opt)
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{
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size_t idx = 0;
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struct aco_type *type;
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while ((type = types[idx++])) {
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if (!type->internal) {
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ast_log(LOG_ERROR, "Attempting to register option using uninitialized type\n");
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return -1;
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}
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if (!ao2_link(type->internal->opts, opt)) {
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while (--idx) {
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ao2_unlink(types[idx]->internal->opts, opt);
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}
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return -1;
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}
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}
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return 0;
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}
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int aco_option_register_deprecated(struct aco_info *info, const char *name, struct aco_type **types, const char *aliased_to)
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{
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struct aco_option *opt;
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if (!info || ast_strlen_zero(name) || ast_strlen_zero(aliased_to)) {
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return -1;
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}
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if (!(opt = ao2_alloc(sizeof(*opt), config_option_destroy))) {
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return -1;
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}
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opt->name = name;
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opt->aliased_to = aliased_to;
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opt->deprecated = 1;
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opt->match_type = ACO_EXACT;
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if (link_option_to_types(types, opt)) {
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ao2_ref(opt, -1);
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return -1;
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}
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return 0;
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}
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int __aco_option_register(struct aco_info *info, const char *name, enum aco_matchtype matchtype, struct aco_type **types,
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const char *default_val, enum aco_option_type kind, aco_option_handler handler, unsigned int flags, size_t argc, ...)
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{
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struct aco_option *opt;
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va_list ap;
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int tmp;
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/* Custom option types require a handler */
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if (!handler && kind == OPT_CUSTOM_T) {
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return -1;
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}
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if (!(types && types[0])) {
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return -1;
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}
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if (!(opt = ao2_alloc(sizeof(*opt) + argc * sizeof(opt->args[0]), config_option_destroy))) {
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return -1;
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}
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if (matchtype == ACO_REGEX && !(opt->name_regex = build_regex(name))) {
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ao2_ref(opt, -1);
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return -1;
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}
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va_start(ap, argc);
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for (tmp = 0; tmp < argc; tmp++) {
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opt->args[tmp] = va_arg(ap, size_t);
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}
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va_end(ap);
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opt->name = name;
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opt->match_type = matchtype;
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opt->default_val = default_val;
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opt->type = kind;
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opt->handler = handler;
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opt->flags = flags;
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opt->argc = argc;
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if (!opt->handler && !(opt->handler = ast_config_option_default_handler(opt->type))) {
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/* This should never happen */
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ast_log(LOG_ERROR, "No handler provided, and no default handler exists for type %d\n", opt->type);
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ao2_ref(opt, -1);
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return -1;
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};
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if (link_option_to_types(types, opt)) {
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ao2_ref(opt, -1);
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return -1;
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}
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return 0;
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}
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static int config_opt_hash(const void *obj, const int flags)
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{
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const struct aco_option *opt = obj;
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const char *name = (flags & OBJ_KEY) ? obj : opt->name;
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return ast_str_case_hash(name);
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}
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static int config_opt_cmp(void *obj, void *arg, int flags)
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{
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struct aco_option *opt1 = obj, *opt2 = arg;
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const char *name = (flags & OBJ_KEY) ? arg : opt2->name;
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return strcasecmp(opt1->name, name) ? 0 : CMP_MATCH | CMP_STOP;
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}
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static int find_option_cb(void *obj, void *arg, int flags)
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{
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struct aco_option *match = obj;
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const char *name = arg;
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switch (match->match_type) {
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case ACO_EXACT:
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return strcasecmp(name, match->name) ? 0 : CMP_MATCH | CMP_STOP;
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case ACO_REGEX:
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return regexec(match->name_regex, name, 0, NULL, 0) ? 0 : CMP_MATCH | CMP_STOP;
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}
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ast_log(LOG_ERROR, "Unknown match type. This should not be possible.\n");
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return CMP_STOP;
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}
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static struct aco_option *aco_option_find(struct aco_type *type, const char *name)
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{
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struct aco_option *opt;
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if (!type || !type->internal || !type->internal->opts) {
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ast_log(LOG_NOTICE, "Attempting to use NULL or unitialized config type\n");
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return NULL;
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}
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/* Try an exact match with OBJ_KEY for the common/fast case, then iterate through
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* all options for the regex cases */
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if (!(opt = ao2_callback(type->internal->opts, OBJ_KEY, find_option_cb, (void *) name))) {
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opt = ao2_callback(type->internal->opts, 0, find_option_cb, (void *) name);
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}
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return opt;
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}
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struct ao2_container *aco_option_container_alloc(void)
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{
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return ao2_container_alloc(CONFIG_OPT_BUCKETS, config_opt_hash, config_opt_cmp);
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}
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static struct aco_type *internal_aco_type_find(struct aco_file *file, struct ast_config *cfg, const char *category)
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{
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size_t x;
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struct aco_type *match;
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const char *val;
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for (x = 0, match = file->types[x]; match; match = file->types[++x]) {
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/* First make sure we are an object that can service this category */
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if (!regexec(match->internal->regex, category, 0, NULL, 0) == !match->category_match) {
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continue;
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}
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/* Then, see if we need to match a particular field */
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if (!ast_strlen_zero(match->matchfield) && (!ast_strlen_zero(match->matchvalue) || match->matchfunc)) {
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if (!(val = ast_variable_retrieve(cfg, category, match->matchfield))) {
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ast_log(LOG_ERROR, "Required match field '%s' not found\n", match->matchfield);
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return NULL;
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}
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if (match->matchfunc) {
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if (!match->matchfunc(val)) {
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continue;
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}
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} else if (strcasecmp(val, match->matchvalue)) {
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continue;
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}
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}
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/* If we get this far, we're a match */
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break;
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}
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return match;
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}
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static int is_preload(struct aco_file *file, const char *cat)
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{
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int i;
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if (!file->preload) {
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return 0;
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}
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for (i = 0; !ast_strlen_zero(file->preload[i]); i++) {
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if (!strcasecmp(cat, file->preload[i])) {
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return 1;
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}
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}
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return 0;
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}
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static int process_category(struct ast_config *cfg, struct aco_info *info, struct aco_file *file, const char *cat, int preload) {
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RAII_VAR(void *, new_item, NULL, ao2_cleanup);
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struct aco_type *type;
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/* For global types, field is the global option struct. For non-global, it is the container for items.
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* We do not grab a reference to these objects, as the info already holds references to them. This
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* pointer is just a convenience. Do not actually store it somewhere. */
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void **field;
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/* Skip preloaded categories if we aren't preloading */
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if (!preload && is_preload(file, cat)) {
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return 0;
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}
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/* Find aco_type by category, if not found it is an error */
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if (!(type = internal_aco_type_find(file, cfg, cat))) {
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ast_log(LOG_ERROR, "Could not find config type for category '%s' in '%s'\n", cat, file->filename);
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return -1;
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}
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field = info->internal->pending + type->item_offset;
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if (!*field) {
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ast_log(LOG_ERROR, "No object to update!\n");
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return -1;
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}
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if (type->type == ACO_GLOBAL && *field) {
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if (aco_set_defaults(type, cat, *field)) {
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ast_log(LOG_ERROR, "In %s: Setting defaults for %s failed\n", file->filename, cat);
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return -1;
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}
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if (aco_process_category_options(type, cfg, cat, *field)) {
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ast_log(LOG_ERROR, "In %s: Processing options for %s failed\n", file->filename, cat);
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return -1;
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}
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} else if (type->type == ACO_ITEM) {
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int new = 0;
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/* If we have multiple definitions of a category in a file, or can set the values from multiple
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* files, look up the entry if we've already added it so we can merge the values together.
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* Otherwise, alloc a new item. */
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if (*field) {
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if (!(new_item = type->item_find(*field, cat))) {
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if (!(new_item = type->item_alloc(cat))) {
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ast_log(LOG_ERROR, "In %s: Could not create item for %s\n", file->filename, cat);
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return -1;
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}
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if (aco_set_defaults(type, cat, new_item)) {
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ast_log(LOG_ERROR, "In %s: Setting defaults for %s failed\n", file->filename, cat);
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return -1;
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}
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new = 1;
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}
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}
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if (type->item_pre_process && type->item_pre_process(new_item)) {
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ast_log(LOG_ERROR, "In %s: Preprocess callback for %s failed\n", file->filename, cat);
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return -1;
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}
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if (aco_process_category_options(type, cfg, cat, new_item)) {
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ast_log(LOG_ERROR, "In %s: Processing options for %s failed\n", file->filename, cat);
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return -1;
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}
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if (type->item_prelink && type->item_prelink(new_item)) {
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ast_log(LOG_ERROR, "In %s: Pre-link callback for %s failed\n", file->filename, cat);
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return -1;
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}
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if (new && !ao2_link(*field, new_item)) {
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ast_log(LOG_ERROR, "In %s: Linking config for %s failed\n", file->filename, cat);
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return -1;
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}
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}
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return 0;
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}
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static int apply_config(struct aco_info *info)
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{
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ao2_global_obj_replace_unref(*info->global_obj, info->internal->pending);
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return 0;
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}
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static enum aco_process_status internal_process_ast_config(struct aco_info *info, struct aco_file *file, struct ast_config *cfg)
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{
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const char *cat = NULL;
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if (file->preload) {
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int i;
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for (i = 0; !ast_strlen_zero(file->preload[i]); i++) {
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if (process_category(cfg, info, file, file->preload[i], 1)) {
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return ACO_PROCESS_ERROR;
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}
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}
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}
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while ((cat = ast_category_browse(cfg, cat))) {
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if (process_category(cfg, info, file, cat, 0)) {
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return ACO_PROCESS_ERROR;
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}
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}
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return ACO_PROCESS_OK;
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}
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enum aco_process_status aco_process_ast_config(struct aco_info *info, struct aco_file *file, struct ast_config *cfg)
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{
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if (!info->internal) {
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ast_log(LOG_ERROR, "Attempt to process %s with uninitialized aco_info\n", file->filename);
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goto error;
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}
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if (!(info->internal->pending = info->snapshot_alloc())) {
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ast_log(LOG_ERROR, "In %s: Could not allocate temporary objects\n", file->filename);
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goto error;
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}
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if (internal_process_ast_config(info, file, cfg)) {
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goto error;
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}
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if (info->pre_apply_config && info->pre_apply_config()) {
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goto error;
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}
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if (apply_config(info)) {
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goto error;
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};
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ao2_cleanup(info->internal->pending);
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return ACO_PROCESS_OK;
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error:
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ao2_cleanup(info->internal->pending);
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return ACO_PROCESS_ERROR;
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}
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enum aco_process_status aco_process_config(struct aco_info *info, int reload)
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{
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struct ast_config *cfg;
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struct ast_flags cfg_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0, };
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int res = ACO_PROCESS_OK, x = 0;
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struct aco_file *file;
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if (!(info->files[0])) {
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ast_log(LOG_ERROR, "No filename given, cannot proceed!\n");
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return ACO_PROCESS_ERROR;
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}
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|
if (!info->internal) {
|
|
ast_log(LOG_ERROR, "Attempting to process uninitialized aco_info\n");
|
|
return ACO_PROCESS_ERROR;
|
|
}
|
|
|
|
if (!(info->internal->pending = info->snapshot_alloc())) {
|
|
ast_log(LOG_ERROR, "In %s: Could not allocate temporary objects\n", info->module);
|
|
return ACO_PROCESS_ERROR;
|
|
}
|
|
|
|
while (res != ACO_PROCESS_ERROR && (file = info->files[x++])) {
|
|
const char *filename = file->filename;
|
|
try_alias:
|
|
if (!(cfg = ast_config_load(filename, cfg_flags))) {
|
|
if (file->alias && strcmp(file->alias, filename)) {
|
|
filename = file->alias;
|
|
goto try_alias;
|
|
}
|
|
ast_log(LOG_ERROR, "Unable to load config file '%s'\n", file->filename);
|
|
res = ACO_PROCESS_ERROR;
|
|
break;
|
|
} else if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
|
|
ast_debug(1, "%s was unchanged\n", file->filename);
|
|
res = ACO_PROCESS_UNCHANGED;
|
|
continue;
|
|
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
|
|
ast_log(LOG_ERROR, "Contents of %s are invalid and cannot be parsed\n", file->filename);
|
|
res = ACO_PROCESS_ERROR;
|
|
break;
|
|
} else if (cfg == CONFIG_STATUS_FILEMISSING) {
|
|
if (file->alias && strcmp(file->alias, filename)) {
|
|
filename = file->alias;
|
|
goto try_alias;
|
|
}
|
|
ast_log(LOG_ERROR, "%s is missing! Cannot load %s\n", file->filename, info->module);
|
|
res = ACO_PROCESS_ERROR;
|
|
break;
|
|
}
|
|
|
|
res = internal_process_ast_config(info, file, cfg);
|
|
ast_config_destroy(cfg);
|
|
}
|
|
|
|
if (res != ACO_PROCESS_OK) {
|
|
goto end;
|
|
}
|
|
|
|
if (info->pre_apply_config && (info->pre_apply_config())) {
|
|
res = ACO_PROCESS_ERROR;
|
|
goto end;
|
|
}
|
|
|
|
if (apply_config(info)) {
|
|
res = ACO_PROCESS_ERROR;
|
|
goto end;
|
|
}
|
|
|
|
if (info->post_apply_config) {
|
|
info->post_apply_config();
|
|
}
|
|
|
|
end:
|
|
ao2_cleanup(info->internal->pending);
|
|
return res;
|
|
}
|
|
int aco_process_var(struct aco_type *type, const char *cat, struct ast_variable *var, void *obj)
|
|
{
|
|
RAII_VAR(struct aco_option *, opt, aco_option_find(type, var->name), ao2_cleanup);
|
|
if (opt && opt->deprecated && !ast_strlen_zero(opt->aliased_to)) {
|
|
const char *alias = ast_strdupa(opt->aliased_to);
|
|
ast_log(LOG_WARNING, "At line %d of %s option '%s' is deprecated. Use '%s' instead\n", var->lineno, var->file, var->name, alias);
|
|
ao2_ref(opt, -1);
|
|
opt = aco_option_find(type, alias);
|
|
}
|
|
|
|
if (!opt) {
|
|
ast_log(LOG_ERROR, "Could not find option suitable for category '%s' named '%s' at line %d of %s\n", cat, var->name, var->lineno, var->file);
|
|
return -1;
|
|
}
|
|
|
|
if (!opt->handler) {
|
|
/* It should be impossible for an option to not have a handler */
|
|
ast_log(LOG_ERROR, "BUG! Somehow a config option for %s/%s was created with no handler!\n", cat, var->name);
|
|
return -1;
|
|
}
|
|
if (opt->handler(opt, var, obj)) {
|
|
ast_log(LOG_ERROR, "Error parsing %s=%s at line %d of %s\n", var->name, var->value, var->lineno, var->file);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int aco_process_category_options(struct aco_type *type, struct ast_config *cfg, const char *cat, void *obj)
|
|
{
|
|
struct ast_variable *var;
|
|
|
|
for (var = ast_variable_browse(cfg, cat); var; var = var->next) {
|
|
if (aco_process_var(type, cat, var, obj)) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void internal_type_destroy(struct aco_type *type)
|
|
{
|
|
/* If we've already had all our internal data cleared out,
|
|
* then there's no need to proceed further
|
|
*/
|
|
if (!type->internal) {
|
|
return;
|
|
}
|
|
|
|
if (type->internal->regex) {
|
|
regfree(type->internal->regex);
|
|
ast_free(type->internal->regex);
|
|
}
|
|
ao2_cleanup(type->internal->opts);
|
|
type->internal->opts = NULL;
|
|
ast_free(type->internal);
|
|
type->internal = NULL;
|
|
}
|
|
|
|
static void internal_file_types_destroy(struct aco_file *file)
|
|
{
|
|
size_t x;
|
|
struct aco_type *t;
|
|
|
|
for (x = 0, t = file->types[x]; t; t = file->types[++x]) {
|
|
internal_type_destroy(t);
|
|
t = NULL;
|
|
}
|
|
}
|
|
|
|
static int internal_type_init(struct aco_type *type)
|
|
{
|
|
if (!(type->internal = ast_calloc(1, sizeof(*type->internal)))) {
|
|
return -1;
|
|
}
|
|
|
|
if (!(type->internal->regex = build_regex(type->category))) {
|
|
internal_type_destroy(type);
|
|
return -1;
|
|
}
|
|
|
|
if (!(type->internal->opts = aco_option_container_alloc())) {
|
|
internal_type_destroy(type);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int aco_info_init(struct aco_info *info)
|
|
{
|
|
size_t x, y;
|
|
|
|
if (!(info->internal = ast_calloc(1, sizeof(*info->internal)))) {
|
|
return -1;
|
|
}
|
|
|
|
for (x = 0; info->files[x]; x++) {
|
|
for (y = 0; info->files[x]->types[y]; y++) {
|
|
if (internal_type_init(info->files[x]->types[y])) {
|
|
goto error;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
error:
|
|
aco_info_destroy(info);
|
|
return -1;
|
|
}
|
|
|
|
void aco_info_destroy(struct aco_info *info)
|
|
{
|
|
int x;
|
|
/* It shouldn't be possible for internal->pending to be in use when this is called because
|
|
* of the locks in loader.c around reloads and unloads and the fact that internal->pending
|
|
* only exists while those locks are held */
|
|
ast_free(info->internal);
|
|
info->internal = NULL;
|
|
|
|
for (x = 0; info->files[x]; x++) {
|
|
internal_file_types_destroy(info->files[x]);
|
|
}
|
|
}
|
|
|
|
int aco_set_defaults(struct aco_type *type, const char *category, void *obj)
|
|
{
|
|
struct aco_option *opt;
|
|
struct ao2_iterator iter;
|
|
|
|
iter = ao2_iterator_init(type->internal->opts, 0);
|
|
|
|
while ((opt = ao2_iterator_next(&iter))) {
|
|
RAII_VAR(struct ast_variable *, var, NULL, ast_variables_destroy);
|
|
|
|
if (ast_strlen_zero(opt->default_val)) {
|
|
ao2_ref(opt, -1);
|
|
continue;
|
|
}
|
|
if (!(var = ast_variable_new(opt->name, opt->default_val, ""))) {
|
|
ao2_ref(opt, -1);
|
|
ao2_iterator_destroy(&iter);
|
|
return -1;
|
|
}
|
|
if (opt->handler(opt, var, obj)) {
|
|
ast_log(LOG_ERROR, "Unable to set default for %s, %s=%s\n", category, var->name, var->value);
|
|
ao2_ref(opt, -1);
|
|
ao2_iterator_destroy(&iter);
|
|
return -1;
|
|
}
|
|
ao2_ref(opt, -1);
|
|
}
|
|
ao2_iterator_destroy(&iter);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Default config option handlers */
|
|
|
|
/*! \brief Default option handler for signed integers
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int int_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj) {
|
|
int *field = (int *)(obj + opt->args[0]);
|
|
unsigned int flags = PARSE_INT32 | opt->flags;
|
|
int res = 0;
|
|
if (opt->flags & PARSE_IN_RANGE) {
|
|
res = opt->flags & PARSE_DEFAULT ?
|
|
ast_parse_arg(var->value, flags, field, (int) opt->args[1], (int) opt->args[2], opt->args[3]) :
|
|
ast_parse_arg(var->value, flags, field, (int) opt->args[1], (int) opt->args[2]);
|
|
if (res) {
|
|
if (opt->flags & PARSE_RANGE_DEFAULTS) {
|
|
ast_log(LOG_WARNING, "Failed to set %s=%s. Set to %d instead due to range limit (%d, %d)\n", var->name, var->value, *field, (int) opt->args[1], (int) opt->args[2]);
|
|
res = 0;
|
|
} else if (opt->flags & PARSE_DEFAULT) {
|
|
ast_log(LOG_WARNING, "Failed to set %s=%s, Set to default value %d instead.\n", var->name, var->value, *field);
|
|
res = 0;
|
|
}
|
|
}
|
|
} else if ((opt->flags & PARSE_DEFAULT) && ast_parse_arg(var->value, flags, field, (int) opt->args[1])) {
|
|
ast_log(LOG_WARNING, "Attempted to set %s=%s, but set it to %d instead due to default)\n", var->name, var->value, *field);
|
|
} else {
|
|
res = ast_parse_arg(var->value, flags, field);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*! \brief Default option handler for unsigned integers
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int uint_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj) {
|
|
unsigned int *field = (unsigned int *)(obj + opt->args[0]);
|
|
unsigned int flags = PARSE_INT32 | opt->flags;
|
|
int res = 0;
|
|
if (opt->flags & PARSE_IN_RANGE) {
|
|
res = opt->flags & PARSE_DEFAULT ?
|
|
ast_parse_arg(var->value, flags, field, (unsigned int) opt->args[1], (unsigned int) opt->args[2], opt->args[3]) :
|
|
ast_parse_arg(var->value, flags, field, (unsigned int) opt->args[1], (unsigned int) opt->args[2]);
|
|
if (res) {
|
|
if (opt->flags & PARSE_RANGE_DEFAULTS) {
|
|
ast_log(LOG_WARNING, "Failed to set %s=%s. Set to %d instead due to range limit (%d, %d)\n", var->name, var->value, *field, (int) opt->args[1], (int) opt->args[2]);
|
|
res = 0;
|
|
} else if (opt->flags & PARSE_DEFAULT) {
|
|
ast_log(LOG_WARNING, "Failed to set %s=%s, Set to default value %d instead.\n", var->name, var->value, *field);
|
|
res = 0;
|
|
}
|
|
}
|
|
} else if ((opt->flags & PARSE_DEFAULT) && ast_parse_arg(var->value, flags, field, (unsigned int) opt->args[1])) {
|
|
ast_log(LOG_WARNING, "Attempted to set %s=%s, but set it to %u instead due to default)\n", var->name, var->value, *field);
|
|
} else {
|
|
res = ast_parse_arg(var->value, flags, field);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*! \brief Default option handler for doubles
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int double_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj) {
|
|
double *field = (double *)(obj + opt->args[0]);
|
|
return ast_parse_arg(var->value, PARSE_DOUBLE | opt->flags, field);
|
|
}
|
|
|
|
/*! \brief Default handler for ACLs
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int acl_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj) {
|
|
struct ast_ha **ha = (struct ast_ha **)(obj + opt->args[0]);
|
|
int error = 0;
|
|
*ha = ast_append_ha(opt->flags ? "permit" : "deny", var->value, *ha, &error);
|
|
return error;
|
|
}
|
|
|
|
/*! \brief Default option handler for codec preferences/capabilities
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int codec_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj) {
|
|
struct ast_codec_pref *pref = (struct ast_codec_pref *)(obj + opt->args[0]);
|
|
struct ast_format_cap **cap = (struct ast_format_cap **)(obj + opt->args[1]);
|
|
return ast_parse_allow_disallow(pref, *cap, var->value, opt->flags);
|
|
}
|
|
|
|
/*! \brief Default option handler for stringfields
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int stringfield_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
ast_string_field *field = (const char **)(obj + opt->args[0]);
|
|
struct ast_string_field_pool **pool = (struct ast_string_field_pool **)(obj + opt->args[1]);
|
|
struct ast_string_field_mgr *mgr = (struct ast_string_field_mgr *)(obj + opt->args[2]);
|
|
ast_string_field_ptr_set_by_fields(*pool, *mgr, field, var->value);
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Default option handler for bools (ast_true/ast_false)
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int bool_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
unsigned int *field = (unsigned int *)(obj + opt->args[0]);
|
|
*field = opt->flags ? ast_true(var->value) : ast_false(var->value);
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Default option handler for bools (ast_true/ast_false) that are stored as flags
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int boolflag_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
unsigned int *flags_field = (unsigned int *)(obj + opt->args[0]);
|
|
unsigned int val = opt->flags ? ast_true(var->value) : ast_false(var->value);
|
|
unsigned int flag = opt->args[1];
|
|
if (val) {
|
|
*flags_field |= flag;
|
|
} else {
|
|
*flags_field &= ~flag;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Default handler for ast_sockaddrs
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int sockaddr_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
struct ast_sockaddr *field = (struct ast_sockaddr *)(obj + opt->args[0]);
|
|
return ast_parse_arg(var->value, PARSE_ADDR | opt->flags, field);
|
|
}
|
|
|
|
/*! \brief Default handler for doing noithing
|
|
*/
|
|
static int noop_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Default handler for character arrays
|
|
* \note For a description of the opt->flags and opt->args values, see the documentation for
|
|
* enum aco_option_type in config_options.h
|
|
*/
|
|
static int chararray_handler_fn(const struct aco_option *opt, struct ast_variable *var, void *obj)
|
|
{
|
|
char *field = (char *)(obj + opt->args[0]);
|
|
size_t len = opt->args[1];
|
|
|
|
ast_copy_string(field, var->value, len);
|
|
return 0;
|
|
}
|