/** Check if the application linking to the library has the correct magic number
*
* @param magic number as defined by RADIUSD_MAGIC_NUMBER
* @returns
* - 0 on success.
* - -1 on prefix mismatch.
* - -2 on version mismatch.
* - -3 on commit mismatch.
*/
int fr_check_lib_magic(uint64_t magic)
{
if (MAGIC_PREFIX(magic) != MAGIC_PREFIX(libmagic)) {
fr_strerror_printf("Application and libfreeradius-util magic number (prefix) mismatch."
" application: %x library: %x",
MAGIC_PREFIX(magic), MAGIC_PREFIX(libmagic));
return -1;
}
if (MAGIC_VERSION(magic) != MAGIC_VERSION(libmagic)) {
fr_strerror_printf("Application and libfreeradius-util magic number (version) mismatch."
" application: %lx library: %lx",
(unsigned long) MAGIC_VERSION(magic), (unsigned long) MAGIC_VERSION(libmagic));
return -2;
}
if (MAGIC_COMMIT(magic) != MAGIC_COMMIT(libmagic)) {
fr_strerror_printf("Application and libfreeradius-util magic number (commit) mismatch."
" application: %lx library: %lx",
(unsigned long) MAGIC_COMMIT(magic), (unsigned long) MAGIC_COMMIT(libmagic));
return -3;
}
return 0;
}
/** Check if the magic number in the module matches the one in the library
*
* This is used to detect potential ABI issues caused by running with modules which
* were built for a different version of the server.
*
* @param cs being parsed.
* @param module being loaded.
* @returns 0 on success, -1 if prefix mismatch, -2 if version mismatch, -3 if commit mismatch.
*/
static int check_module_magic(CONF_SECTION *cs, module_t const *module)
{
if (MAGIC_PREFIX(module->magic) != MAGIC_PREFIX(RADIUSD_MAGIC_NUMBER)) {
cf_log_err_cs(cs, "Application and rlm_%s magic number (prefix) mismatch."
" application: %x module: %x", module->name,
MAGIC_PREFIX(RADIUSD_MAGIC_NUMBER),
MAGIC_PREFIX(module->magic));
return -1;
}
if (MAGIC_VERSION(module->magic) != MAGIC_VERSION(RADIUSD_MAGIC_NUMBER)) {
cf_log_err_cs(cs, "Application and rlm_%s magic number (version) mismatch."
" application: %lx module: %lx", module->name,
(unsigned long) MAGIC_VERSION(RADIUSD_MAGIC_NUMBER),
(unsigned long) MAGIC_VERSION(module->magic));
return -2;
}
if (MAGIC_COMMIT(module->magic) != MAGIC_COMMIT(RADIUSD_MAGIC_NUMBER)) {
cf_log_err_cs(cs, "Application and rlm_%s magic number (commit) mismatch."
" application: %lx module: %lx", module->name,
(unsigned long) MAGIC_COMMIT(RADIUSD_MAGIC_NUMBER),
(unsigned long) MAGIC_COMMIT(module->magic));
return -3;
}
return 0;
}
/** Check if the magic number in the module matches the one in the library
*
* This is used to detect potential ABI issues caused by running with modules which
* were built for a different version of the server.
*
* @param cs being parsed.
* @param module being loaded.
* @returns
* - 0 on success.
* - -1 if prefix mismatch.
* - -2 if version mismatch.
* - -3 if commit mismatch.
*/
static int check_module_magic(CONF_SECTION *cs, module_t const *module)
{
#ifdef HAVE_DLADDR
Dl_info dl_info;
dladdr(module, &dl_info);
#endif
if (MAGIC_PREFIX(module->magic) != MAGIC_PREFIX(RADIUSD_MAGIC_NUMBER)) {
#ifdef HAVE_DLADDR
cf_log_err_cs(cs, "Failed loading module rlm_%s from file %s", module->name, dl_info.dli_fname);
#endif
cf_log_err_cs(cs, "Application and rlm_%s magic number (prefix) mismatch."
" application: %x module: %x", module->name,
MAGIC_PREFIX(RADIUSD_MAGIC_NUMBER),
MAGIC_PREFIX(module->magic));
return -1;
}
if (MAGIC_VERSION(module->magic) != MAGIC_VERSION(RADIUSD_MAGIC_NUMBER)) {
#ifdef HAVE_DLADDR
cf_log_err_cs(cs, "Failed loading module rlm_%s from file %s", module->name, dl_info.dli_fname);
#endif
cf_log_err_cs(cs, "Application and rlm_%s magic number (version) mismatch."
" application: %lx module: %lx", module->name,
(unsigned long) MAGIC_VERSION(RADIUSD_MAGIC_NUMBER),
(unsigned long) MAGIC_VERSION(module->magic));
return -2;
}
if (MAGIC_COMMIT(module->magic) != MAGIC_COMMIT(RADIUSD_MAGIC_NUMBER)) {
#ifdef HAVE_DLADDR
cf_log_err_cs(cs, "Failed loading module rlm_%s from file %s", module->name, dl_info.dli_fname);
#endif
cf_log_err_cs(cs, "Application and rlm_%s magic number (commit) mismatch."
" application: %lx module: %lx", module->name,
(unsigned long) MAGIC_COMMIT(RADIUSD_MAGIC_NUMBER),
(unsigned long) MAGIC_COMMIT(module->magic));
return -3;
}
return 0;
}
