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Version 0.1.7 from FTP

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@235 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2001-03-07 00:52:22 +00:00
parent 40780b1559
commit 22318b627d
15 changed files with 138 additions and 0 deletions
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62
loader.c
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@@ -21,20 +21,65 @@
#include <asterisk/config.h>
#include <asterisk/logger.h>
#include <dlfcn.h>
#include <asterisk/md5.h>
#define __USE_GNU
#include <pthread.h>
#include "asterisk.h"
static char expected_key[] =
{ 0x8e, 0x93, 0x22, 0x83, 0xf5, 0xc3, 0xc0, 0x75,
0xff, 0x8b, 0xa9, 0xbe, 0x7c, 0x43, 0x74, 0x63 };
struct module {
int (*load_module)(void);
int (*unload_module)(void);
int (*usecount)(void);
char *(*description)(void);
char *(*key)(void);
int (*reload)(void);
void *lib;
char resource[256];
struct module *next;
};
static int printdigest(unsigned char *d)
{
int x;
char buf[256];
char buf2[16];
snprintf(buf, sizeof(buf), "Unexpected signature:");
for (x=0;x<16;x++) {
snprintf(buf2, sizeof(buf2), " %02x", *(d++));
strcat(buf, buf2);
}
strcat(buf, "\n");
ast_log(LOG_DEBUG, buf);
return 0;
}
static int key_matches(char *key1, char *key2)
{
int match = 1;
int x;
for (x=0;x<16;x++) {
match &= (key1[x] == key2[x]);
}
return match;
}
static int verify_key(char *key)
{
struct MD5Context c;
char digest[16];
MD5Init(&c);
MD5Update(&c, key, strlen(key));
MD5Final(digest, &c);
if (key_matches(expected_key, digest))
return 0;
printdigest(digest);
return -1;
}
static struct loadupdate {
int (*updater)(void);
struct loadupdate *next;
@@ -94,6 +139,7 @@ int ast_load_resource(char *resource_name)
struct module *m;
int flags=0;
char *val;
char *key;
int o;
struct ast_config *cfg;
/* Keep the module file parsing silent */
@@ -158,6 +204,21 @@ int ast_load_resource(char *resource_name)
ast_log(LOG_WARNING, "No description in module %s\n", fn);
errors++;
}
m->key = dlsym(m->lib, "key");
if (!m->key) {
ast_log(LOG_WARNING, "No key routine in module %s\n", fn);
errors++;
}
m->reload = dlsym(m->lib, "reload");
if (m->key && !(key = m->key())) {
ast_log(LOG_WARNING, "Key routine returned NULL in module %s\n", fn);
errors++;
} else
key = NULL;
if (key && verify_key(key)) {
ast_log(LOG_WARNING, "Unexpected key returned by module %s\n", fn);
errors++;
}
if (errors) {
ast_log(LOG_WARNING, "%d error(s) loading module %s, aborted\n", errors, fn);
dlclose(m->lib);
@@ -175,6 +236,7 @@ int ast_load_resource(char *resource_name)
ast_verbose(VERBOSE_PREFIX_1 "Loaded %s => (%s)\n", fn, m->description());
}
m->next = module_list;
module_list = m;
pthread_mutex_unlock(&modlock);
if ((res = m->load_module())) {