static int
virStorageDriverLoadBackendModule(const char *name,
const char *regfunc,
bool forceload)
{
char *modfile = NULL;
int ret;
if (!(modfile = virFileFindResourceFull(name,
"libvirt_storage_backend_",
".so",
abs_topbuilddir "/src/.libs",
STORAGE_BACKEND_MODULE_DIR,
"LIBVIRT_STORAGE_BACKEND_DIR")))
return 1;
if ((ret = virDriverLoadModuleFull(modfile, regfunc, NULL)) != 0) {
if (forceload) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to load storage backend module '%s'"),
name);
ret = -1;
}
}
VIR_FREE(modfile);
return ret;
}
static virNetClientPtr
virLogManagerConnect(bool privileged,
virNetClientProgramPtr *prog)
{
virNetClientPtr client = NULL;
char *logdpath;
char *daemonPath = NULL;
*prog = NULL;
if (!(logdpath = virLogManagerDaemonPath(privileged)))
goto error;
if (!privileged &&
!(daemonPath = virFileFindResourceFull("virtlogd",
NULL, NULL,
abs_topbuilddir "/src",
SBINDIR,
"VIRTLOGD_PATH")))
goto error;
if (!(client = virNetClientNewUNIX(logdpath,
daemonPath != NULL,
daemonPath)))
goto error;
if (!(*prog = virNetClientProgramNew(VIR_LOG_MANAGER_PROTOCOL_PROGRAM,
VIR_LOG_MANAGER_PROTOCOL_PROGRAM_VERSION,
NULL,
0,
NULL)))
goto error;
if (virNetClientAddProgram(client, *prog) < 0)
goto error;
VIR_FREE(daemonPath);
VIR_FREE(logdpath);
return client;
error:
VIR_FREE(daemonPath);
VIR_FREE(logdpath);
virNetClientClose(client);
virObjectUnref(client);
virObjectUnref(*prog);
return NULL;
}
static int
virStorageDriverLoadBackendModule(const char *name,
const char *regfunc,
bool forceload)
{
VIR_AUTOFREE(char *) modfile = NULL;
if (!(modfile = virFileFindResourceFull(name,
"libvirt_storage_backend_",
".so",
abs_top_builddir "/src/.libs",
STORAGE_BACKEND_MODULE_DIR,
"LIBVIRT_STORAGE_BACKEND_DIR")))
return -1;
return virModuleLoad(modfile, regfunc, forceload);
}
static int
virStorageFileLoadBackendModule(const char *name,
const char *regfunc,
bool forceload)
{
char *modfile = NULL;
int ret;
if (!(modfile = virFileFindResourceFull(name,
"libvirt_storage_file_",
".so",
abs_topbuilddir "/src/.libs",
STORAGE_FILE_MODULE_DIR,
"LIBVIRT_STORAGE_FILE_DIR")))
return -1;
ret = virModuleLoad(modfile, regfunc, forceload);
VIR_FREE(modfile);
return ret;
}
int
virDriverLoadModule(const char *name,
const char *regfunc)
{
char *modfile = NULL;
int ret;
VIR_DEBUG("Module load %s", name);
if (!(modfile = virFileFindResourceFull(name,
"libvirt_driver_",
".so",
abs_topbuilddir "/src/.libs",
DEFAULT_DRIVER_DIR,
"LIBVIRT_DRIVER_DIR")))
return 1;
ret = virDriverLoadModuleFull(modfile, regfunc, NULL);
VIR_FREE(modfile);
return ret;
}
virLockManagerPluginPtr virLockManagerPluginNew(const char *name,
const char *driverName,
const char *configDir,
unsigned int flags)
{
void *handle = NULL;
virLockDriverPtr driver;
virLockManagerPluginPtr plugin = NULL;
char *modfile = NULL;
char *configFile = NULL;
VIR_DEBUG("name=%s driverName=%s configDir=%s flags=0x%x",
name, driverName, configDir, flags);
if (virAsprintf(&configFile, "%s/%s-%s.conf",
configDir, driverName, name) < 0)
return NULL;
if (STREQ(name, "nop")) {
driver = &virLockDriverNop;
} else {
if (!(modfile = virFileFindResourceFull(name,
NULL,
".so",
abs_top_builddir "/src/.libs",
LIBDIR "/libvirt/lock-driver",
"LIBVIRT_LOCK_MANAGER_PLUGIN_DIR")))
goto cleanup;
VIR_DEBUG("Module load %s from %s", name, modfile);
if (access(modfile, R_OK) < 0) {
virReportSystemError(errno,
_("Plugin %s not accessible"),
modfile);
goto cleanup;
}
handle = dlopen(modfile, RTLD_NOW | RTLD_LOCAL);
if (!handle) {
virReportError(VIR_ERR_SYSTEM_ERROR,
_("Failed to load plugin %s: %s"),
modfile, dlerror());
goto cleanup;
}
if (!(driver = dlsym(handle, "virLockDriverImpl"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Missing plugin initialization symbol 'virLockDriverImpl'"));
goto cleanup;
}
}
if (driver->drvInit(VIR_LOCK_MANAGER_VERSION, configFile, flags) < 0)
goto cleanup;
if (VIR_ALLOC(plugin) < 0)
goto cleanup;
plugin->driver = driver;
plugin->handle = handle;
plugin->refs = 1;
if (VIR_STRDUP(plugin->name, name) < 0)
goto cleanup;
VIR_FREE(configFile);
VIR_FREE(modfile);
return plugin;
cleanup:
VIR_FREE(configFile);
VIR_FREE(plugin);
VIR_FREE(modfile);
if (handle)
dlclose(handle);
return NULL;
}
void *
virDriverLoadModule(const char *name)
{
char *modfile = NULL, *regfunc = NULL, *fixedname = NULL;
char *tmp;
void *handle = NULL;
int (*regsym)(void);
VIR_DEBUG("Module load %s", name);
if (!(modfile = virFileFindResourceFull(name,
"libvirt_driver_",
".so",
abs_topbuilddir "/src/.libs",
DEFAULT_DRIVER_DIR,
"LIBVIRT_DRIVER_DIR")))
return NULL;
if (access(modfile, R_OK) < 0) {
VIR_INFO("Module %s not accessible", modfile);
goto cleanup;
}
virUpdateSelfLastChanged(modfile);
handle = dlopen(modfile, RTLD_NOW | RTLD_GLOBAL);
if (!handle) {
VIR_ERROR(_("failed to load module %s %s"), modfile, dlerror());
goto cleanup;
}
if (VIR_STRDUP_QUIET(fixedname, name) < 0) {
VIR_ERROR(_("out of memory"));
goto cleanup;
}
/* convert something_like_this into somethingLikeThis */
while ((tmp = strchr(fixedname, '_'))) {
memmove(tmp, tmp + 1, strlen(tmp));
*tmp = c_toupper(*tmp);
}
if (virAsprintfQuiet(®func, "%sRegister", fixedname) < 0)
goto cleanup;
regsym = dlsym(handle, regfunc);
if (!regsym) {
VIR_ERROR(_("Missing module registration symbol %s"), regfunc);
goto cleanup;
}
if ((*regsym)() < 0) {
VIR_ERROR(_("Failed module registration %s"), regfunc);
goto cleanup;
}
VIR_FREE(modfile);
VIR_FREE(regfunc);
VIR_FREE(fixedname);
return handle;
cleanup:
VIR_FREE(modfile);
VIR_FREE(regfunc);
VIR_FREE(fixedname);
if (handle)
dlclose(handle);
return NULL;
}
