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Add new option to asterisk.conf (lockconfdir) to protect conf dir during reloads

Browse Source 
(closes issue #16358)
Reported by: raarts
Patches: 
      lockconfdir.diff uploaded by raarts (license 937)
      modified by me


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@243551 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Jeff Peeler
2010-01-27 18:29:49 +00:00
parent 630b8027c3
commit a170cd28e0
5 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
CHANGES
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@@ -389,6 +389,8 @@ Miscellaneous
* An 'X' option has been added to the asterisk application which enables #exec support.
This allows #exec to be used in asterisk.conf.
* jabber.conf supports a new option auth_policy that toggles auto user registration.
* A new lockconfdir option has been added to asterisk.conf to protect the
AST_CONFIG_DIR during reloads.
------------------------------------------------------------------------------
--- Functionality changes from Asterisk 1.6.1 to Asterisk 1.6.2 -------------

1
Makefile
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@@ -743,6 +743,7 @@ samples: adsi
echo ";lightbackground = yes ; If your terminal is set for a light-colored background" ; \
echo "documentation_language = en_US ; Set the Language you want Documentation displayed in. Value is in the same format as locale names" ; \
echo ";hideconnect = yes ; Hide messages displayed when a remote console connects and disconnects" ; \
echo ";lockconfdir = no ; Protect the directory containing the configuration files (/etc/asterisk) with a lock" ; \
echo "" ; \
echo "; Changing the following lines may compromise your security." ; \
echo ";[files]" ; \

3
include/asterisk/options.h
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@@ -90,6 +90,8 @@ enum ast_option_flags {
AST_OPT_FLAG_FORCE_BLACK_BACKGROUND = (1 << 27),
/*! Hide remote console connect messages on console */
AST_OPT_FLAG_HIDE_CONSOLE_CONNECT = (1 << 28),
/*! Protect the configuration file path with a lock */
AST_OPT_FLAG_LOCK_CONFIG_DIR = (1 << 29),
};
/*! These are the options that set by default when Asterisk starts */
@@ -122,6 +124,7 @@ enum ast_option_flags {
#define ast_opt_light_background ast_test_flag(&ast_options, AST_OPT_FLAG_LIGHT_BACKGROUND)
#define ast_opt_force_black_background ast_test_flag(&ast_options, AST_OPT_FLAG_FORCE_BLACK_BACKGROUND)
#define ast_opt_hide_connect ast_test_flag(&ast_options, AST_OPT_FLAG_HIDE_CONSOLE_CONNECT)
#define ast_opt_lock_confdir ast_test_flag(&ast_options, AST_OPT_FLAG_LOCK_CONFIG_DIR)
extern struct ast_flags ast_options;

2
main/asterisk.c
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@@ -2997,6 +2997,8 @@ static void ast_readconfig(void)
ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_FORCE_BLACK_BACKGROUND);
} else if (!strcasecmp(v->name, "hideconnect")) {
ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_HIDE_CONSOLE_CONNECT);
} else if (!strcasecmp(v->name, "lockconfdir")) {
ast_set2_flag(&ast_options, ast_true(v->value), AST_OPT_FLAG_LOCK_CONFIG_DIR);
}
}
for (v = ast_variable_browse(cfg, "compat"); v; v = v->next) {

23
main/loader.c
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@@ -49,6 +49,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/dsp.h"
#include "asterisk/udptl.h"
#include "asterisk/heap.h"
#include "asterisk/app.h"
#include <dlfcn.h>
@@ -652,6 +653,22 @@ int ast_module_reload(const char *name)
}
ast_lastreloadtime = ast_tvnow();
if (ast_opt_lock_confdir) {
int try;
int res;
for (try = 1, res = AST_LOCK_TIMEOUT; try < 6 && (res == AST_LOCK_TIMEOUT); try++) {
res = ast_lock_path(ast_config_AST_CONFIG_DIR);
if (res == AST_LOCK_TIMEOUT) {
ast_log(LOG_WARNING, "Failed to grab lock on %s, try %d\n", ast_config_AST_CONFIG_DIR, try);
}
}
if (res != AST_LOCK_SUCCESS) {
ast_verbose("Cannot grab lock on %s\n", ast_config_AST_CONFIG_DIR);
ast_mutex_unlock(&reloadlock);
return -1;
}
}
/* Call "predefined" reload here first */
for (i = 0; reload_classes[i].name; i++) {
if (!name || !strcasecmp(name, reload_classes[i].name)) {
@@ -661,6 +678,9 @@ int ast_module_reload(const char *name)
}
if (name && res) {
if (ast_opt_lock_confdir) {
ast_unlock_path(ast_config_AST_CONFIG_DIR);
}
ast_mutex_unlock(&reloadlock);
return res;
}
@@ -695,6 +715,9 @@ int ast_module_reload(const char *name)
}
AST_LIST_UNLOCK(&module_list);
if (ast_opt_lock_confdir) {
ast_unlock_path(ast_config_AST_CONFIG_DIR);
}
ast_mutex_unlock(&reloadlock);
return res;