ret = fcntl(fd, F_OFD_GETLK, &lk);
if (ret < 0 && errno == EINVAL)
ret = flock(fd, LOCK_EX | LOCK_NB);
+
close(fd);
- if (ret == 0 && lk.l_pid != -1) {
+
+ if (ret == 0 && lk.l_pid != -1)
/* create is still ongoing */
return 1;
- }
/* Create completed but partial is still there. */
return 2;
char *path;
close(fd);
+
/* $lxcpath + '/' + $name + '/partial' + \0 */
len = strlen(c->config_path) + strlen(c->name) + 10;
path = alloca(len);
* decrement numthreads under privlock, then if it hits 0 you can delete.
* Do not ever use a lxccontainer whose numthreads you did not bump.
*/
-
static void lxc_container_free(struct lxc_container *c)
{
if (!c)
}
container_mem_unlock(c);
-
return 0;
}
on_error:
container_mem_unlock(c);
-
return ret;
}
return false;
c->lxc_conf->name = c->name;
-
return true;
}
return false;
fname = c->configfile;
+
if (alt_file)
fname = alt_file;
+
if (!fname)
return false;
len = strlen(incmd) + 1;
copy = alloca(len);
retlen = strlcpy(copy, incmd, len);
- if (retlen >= len) {
+ if (retlen >= len)
return NULL;
- }
do {
argv = malloc(sizeof(char *));
static int lxc_rcv_status(int state_socket)
{
- int ret;
- int state = -1;
+ int ret;
+ int state = -1;
again:
- /* Receive container state. */
- ret = lxc_abstract_unix_rcv_credential(state_socket, &state,
- sizeof(int));
- if (ret <= 0) {
+ /* Receive container state. */
+ ret = lxc_abstract_unix_rcv_credential(state_socket, &state, sizeof(int));
+ if (ret <= 0) {
if (errno != EINTR)
return -1;
+
TRACE("Caught EINTR; retrying");
goto again;
}
- return state;
+ return state;
}
static bool wait_on_daemonized_start(struct lxc_handler *handler, int pid)
{
- int ret, state;
+ int ret, state;
- /* Close write end of the socket pair. */
- close(handler->state_socket_pair[1]);
- handler->state_socket_pair[1] = -1;
+ /* Close write end of the socket pair. */
+ close(handler->state_socket_pair[1]);
+ handler->state_socket_pair[1] = -1;
- state = lxc_rcv_status(handler->state_socket_pair[0]);
+ state = lxc_rcv_status(handler->state_socket_pair[0]);
- /* Close read end of the socket pair. */
- close(handler->state_socket_pair[0]);
- handler->state_socket_pair[0] = -1;
+ /* Close read end of the socket pair. */
+ close(handler->state_socket_pair[0]);
+ handler->state_socket_pair[0] = -1;
- /* The first child is going to fork() again and then exits. So we reap
- * the first child here.
- */
+ /* The first child is going to fork() again and then exits. So we reap
+ * the first child here.
+ */
ret = wait_for_pid(pid);
if (ret < 0)
- DEBUG("Failed waiting on first child %d", pid);
+ DEBUG("Failed waiting on first child %d", pid);
else
- DEBUG("First child %d exited", pid);
+ DEBUG("First child %d exited", pid);
- if (state < 0) {
- SYSERROR("Failed to receive the container state");
- return false;
- }
+ if (state < 0) {
+ SYSERROR("Failed to receive the container state");
+ return false;
+ }
- /* If we receive anything else then running we know that the container
- * failed to start.
- */
- if (state != RUNNING) {
- ERROR("Received container state \"%s\" instead of \"RUNNING\"",
- lxc_state2str(state));
- return false;
- }
+ /* If we receive anything else then running we know that the container
+ * failed to start.
+ */
+ if (state != RUNNING) {
+ ERROR("Received container state \"%s\" instead of \"RUNNING\"",
+ lxc_state2str(state));
+ return false;
+ }
- TRACE("Container is in \"RUNNING\" state");
- return true;
+ TRACE("Container is in \"RUNNING\" state");
+ return true;
}
static bool do_lxcapi_start(struct lxc_container *c, int useinit, char * const argv[])
on_error:
if (inargs) {
char **arg;
+
for (arg = inargs; *arg; arg++)
free(*arg);
free(inargs);
* args.
*/
if (argv)
- for (nargs = 0; argv[nargs]; nargs++) {
+ for (nargs = 0; argv[nargs]; nargs++)
;
- }
+
/* template, path, rootfs and name args */
nargs += 4;
patharg = malloc(len);
if (!patharg)
_exit(EXIT_FAILURE);
+
ret = snprintf(patharg, len, "--path=%s/%s", c->config_path, c->name);
if (ret < 0 || ret >= len)
_exit(EXIT_FAILURE);
namearg = malloc(len);
if (!namearg)
_exit(EXIT_FAILURE);
+
ret = snprintf(namearg, len, "--name=%s", c->name);
if (ret < 0 || ret >= len)
_exit(EXIT_FAILURE);
rootfsarg = malloc(len);
if (!rootfsarg)
_exit(EXIT_FAILURE);
+
ret = snprintf(rootfsarg, len, "--rootfs=%s", bdev->dest);
if (ret < 0 || ret >= len)
_exit(EXIT_FAILURE);
newargv[0] = tpath;
tpath = "lxc-usernsexec";
n2[0] = "lxc-usernsexec";
+
lxc_list_for_each(it, &conf->id_map) {
map = it->elem;
n2args += 2;
hostuid_mapped = mapped_hostid(geteuid(), conf, ID_TYPE_UID);
extraargs = hostuid_mapped >= 0 ? 1 : 3;
+
n2 = realloc(n2, (nargs + n2args + extraargs) * sizeof(char *));
if (!n2)
_exit(EXIT_FAILURE);
SYSERROR("out of memory");
_exit(EXIT_FAILURE);
}
+
ret = snprintf(n2[n2args - 1], 200, "u:%d:%d:1",
hostuid_mapped, geteuid());
if (ret < 0 || ret >= 200)
hostgid_mapped = mapped_hostid(getegid(), conf, ID_TYPE_GID);
extraargs = hostgid_mapped >= 0 ? 1 : 3;
+
n2 = realloc(n2, (nargs + n2args + extraargs) * sizeof(char *));
if (!n2)
_exit(EXIT_FAILURE);
if (ret < 0 || ret >= 200)
_exit(EXIT_FAILURE);
}
+
n2[n2args++] = "--";
+
for (i = 0; i < nargs; i++)
n2[i + n2args] = newargv[i];
n2args += nargs;
goto out_free_contents;
contents[flen] = '\0';
+
ret = fclose(f);
f = NULL;
if (ret < 0)
}
fprintf(f, "\n");
}
+
#if HAVE_LIBGNUTLS
fprintf(f, "# Template script checksum (SHA-1): ");
for (i=0; i<SHA_DIGEST_LENGTH; i++)
* existing container. Return an error, but do NOT delete the container.
*/
if (do_lxcapi_is_defined(c) && c->lxc_conf && c->lxc_conf->rootfs.path &&
- access(c->lxc_conf->rootfs.path, F_OK) == 0 && tpath) {
+ access(c->lxc_conf->rootfs.path, F_OK) == 0 && tpath) {
ERROR("Container \"%s\" already exists in \"%s\"", c->name,
c->config_path);
goto free_tpath;
*/
if (!c->save_config(c, NULL))
ERROR("Failed to save initial config for \"%s\"", c->name);
+
ret = true;
goto out;
}
bdev->ops->destroy(bdev);
_exit(EXIT_FAILURE);
}
+
_exit(EXIT_SUCCESS);
}
+
if (wait_for_pid(pid) != 0)
goto out_unlock;
/* Reload config to get the rootfs. */
lxc_conf_free(c->lxc_conf);
c->lxc_conf = NULL;
+
if (!load_config_locked(c, c->configfile))
goto out_unlock;
goto out_unlock;
}
}
+
ret = load_config_locked(c, c->configfile);
out_unlock:
umask(mask);
if (partial_fd >= 0)
remove_partial(c, partial_fd);
+
out:
if (!ret)
container_destroy(c, NULL);
+
free_tpath:
free(tpath);
return ret;
int flags, char *const argv[])
{
bool ret;
+
current_config = c ? c->lxc_conf : NULL;
+
ret = do_lxcapi_create(c, t, bdevtype, specs, flags, argv);
current_config = NULL;
return ret;
if (killret < 0) {
if (state_client_fd >= 0)
close(state_client_fd);
+
WARN("Failed to send signal %d to pid %d", rebootsignal, pid);
return false;
}
if (killret < 0) {
if (state_client_fd >= 0)
close(state_client_fd);
+
WARN("Failed to send signal %d to pid %d", haltsignal, pid);
return false;
}
*/
if (config && config->clr)
ret = config->clr(key, c->lxc_conf, NULL);
+
if (!ret)
do_clear_unexp_config_line(c->lxc_conf, key);
{
pid_t pid = do_lxcapi_init_pid(c);
- if ((geteuid() != 0 || (c->lxc_conf && !lxc_list_empty(&c->lxc_conf->id_map))) && access("/proc/self/ns/user", F_OK) == 0) {
+ if ((geteuid() != 0 || (c->lxc_conf && !lxc_list_empty(&c->lxc_conf->id_map))) &&
+ (access("/proc/self/ns/user", F_OK) == 0))
if (!switch_to_ns(pid, "user"))
return false;
- }
+
return switch_to_ns(pid, "net");
}
return (char **)bsearch(&cname, *names, size, sizeof(char *), (int (*)(const void *, const void *))string_cmp);
}
-
-static bool array_contains(char ***names, char *cname, int size) {
+static bool array_contains(char ***names, char *cname, int size)
+{
if(get_from_array(names, cname, size) != NULL)
return true;
+
return false;
}
free(result);
return true;
}
+
return false;
}
}
count++;
}
+
ret = 0;
out:
if (wait_for_pid(pid) != 0) {
for(i=0;i<count;i++)
free(interfaces[i]);
+
free(interfaces);
interfaces = NULL;
}
address);
goto out;
}
+
count++;
}
+
ret = 0;
out:
if (!c || !c->lxc_conf)
return NULL;
+
if (container_mem_lock(c))
return NULL;
+
ret = lxc_cmd_get_config_item(c->name, key, do_lxcapi_get_config_path(c));
container_mem_unlock(c);
return ret;
if (!alt_file)
alt_file = c->configfile;
+
if (!alt_file)
return false;
ret = snprintf(path, MAXPATHLEN, "%s/%s/lxc_snapshots", c0->config_path, c0->name);
if (ret < 0 || ret > MAXPATHLEN)
goto out;
+
ret = snprintf(newpath, MAXPATHLEN, "%s\n%s\n", c->config_path, c->name);
if (ret < 0 || ret > MAXPATHLEN)
goto out;
goto out;
}
}
+
close(fd);
}
ERROR("Path name too long");
return;
}
+
f = fopen(path, "r");
if (f == NULL)
return;
+
while (getline(&lxcpath, &pathlen, f) != -1) {
if (getline(&lxcname, &namelen, f) == -1) {
ERROR("badly formatted file %s", path);
lxcpath, lxcname);
continue;
}
+
if (!mod_rdep(p, c, inc))
ERROR("Failed to update snapshots file for %s:%s",
lxcpath, lxcname);
+
lxc_container_put(p);
}
+
out:
free(lxcpath);
free(lxcname);
c->name);
if (ret < 0 || ret > MAXPATHLEN)
goto out;
+
/* If the file doesn't exist there are no snapshots. */
if (stat(path, &fbuf) < 0)
goto out;
+
v = fbuf.st_size;
if (v != 0) {
f = fopen(path, "r");
if (!f)
goto out;
+
ret = fscanf(f, "%d", &v);
fclose(f);
/* TODO: Figure out what to do with the return value of fscanf. */
if (ret != 1)
INFO("Container uses new lxc-snapshots format %s", path);
}
+
bret = v != 0;
out:
if (!get_snappath_dir(c, path))
return false;
+
dir = opendir(path);
if (!dir)
return false;
+
while ((direntp = readdir(dir))) {
if (!strcmp(direntp->d_name, "."))
continue;
count++;
break;
}
+
closedir(dir);
return count > 0;
}
if (current_config && conf == current_config) {
current_config = NULL;
+
if (conf->logfd != -1) {
close(conf->logfd);
conf->logfd = -1;
ret = snprintf(path, len, "%s/%s", p1, c->name);
if (ret < 0 || (size_t)ret >= len)
goto out;
+
if (am_guest_unpriv())
ret = userns_exec_full(conf, lxc_rmdir_onedev_wrapper, path,
"lxc_rmdir_onedev_wrapper");
out:
if (path)
free(path);
+
container_disk_unlock(c);
return bret;
}
{
if (!c || !lxcapi_is_defined(c))
return false;
+
if (!lxcapi_snapshot_destroy_all(c)) {
ERROR("Error deleting all snapshots");
return false;
}
+
return lxcapi_destroy(c);
}
{
if (!c || !c->configfile)
return NULL;
+
return strdup(c->configfile);
}
{
if (!c || !c->config_path)
return NULL;
+
return (const char *)(c->config_path);
}
c->config_path = oldpath;
oldpath = NULL;
}
+
err:
free(oldpath);
container_mem_unlock(c);
ERROR("copy destination %s exists", new);
return -1;
}
+
ret = stat(old, &sbuf);
if (ret < 0) {
INFO("Error stat'ing %s", old);
SYSERROR("Error opening original file %s", old);
return -1;
}
+
out = open(new, O_CREAT | O_EXCL | O_WRONLY, 0644);
if (out < 0) {
SYSERROR("Error opening new file %s", new);
SYSERROR("Error reading old file %s", old);
goto err;
}
+
if (len == 0)
break;
+
ret = write(out, buf, len);
if (ret < len) { /* should we retry? */
SYSERROR("Error: write to new file %s was interrupted", new);
goto err;
}
}
+
close(in);
close(out);
char tmppath[MAXPATHLEN];
if (!fname) /* relative path - we don't support, but maybe we should */
return 0;
+
if (strncmp(hookname, cpath, len - 1) != 0) {
/* this hook is public - ignore */
continue;
}
+
/* copy the script, and change the entry in confile */
ret = snprintf(tmppath, MAXPATHLEN, "%s/%s/%s",
c->config_path, c->name, fname+1);
if (ret < 0 || ret >= MAXPATHLEN)
return -1;
+
ret = copy_file(it->elem, tmppath);
if (ret < 0)
return -1;
+
free(it->elem);
+
it->elem = strdup(tmppath);
if (!it->elem) {
ERROR("out of memory copying hook path");
ERROR("Error saving new hooks in clone");
return -1;
}
+
do_lxcapi_save_config(c, NULL);
return 0;
}
char *p = strrchr(oldpath, '/');
if (!p)
return -1;
+
ret = snprintf(newpath, MAXPATHLEN, "%s/%s%s",
c->config_path, c->name, p);
if (ret < 0 || ret >= MAXPATHLEN) {
ERROR("error printing new path for %s", oldpath);
return -1;
}
+
if (file_exists(newpath)) {
ERROR("error: fstab file %s exists", newpath);
return -1;
ERROR("error: copying %s to %s", oldpath, newpath);
return -1;
}
+
free(c->lxc_conf->fstab);
+
c->lxc_conf->fstab = strdup(newpath);
if (!c->lxc_conf->fstab) {
ERROR("error: allocating pathname");
return -1;
}
+
if (!do_append_unexp_config_line(c->lxc_conf, "lxc.mount.fstab", newpath)) {
ERROR("error saving new lxctab");
return -1;
WARN("Error copying reverse dependencies");
return;
}
+
ret = snprintf(path1, MAXPATHLEN, "%s/%s/lxc_rdepends", c->config_path,
c->name);
if (ret < 0 || ret >= MAXPATHLEN) {
WARN("Error copying reverse dependencies");
return;
}
+
if (copy_file(path0, path1) < 0) {
INFO("Error copying reverse dependencies");
return;
c->name);
if (ret < 0 || ret >= MAXPATHLEN)
return false;
+
f = fopen(path, "a");
if (!f)
return false;
+
bret = true;
+
/* If anything goes wrong, just return an error. */
if (fprintf(f, "%s\n%s\n", c0->config_path, c0->name) < 0)
bret = false;
+
if (fclose(f) != 0)
bret = false;
+
return bret;
}
if (flags & LXC_CLONE_SNAPSHOT)
copy_rdepends(c, c0);
+
if (need_rdep) {
if (!add_rdepends(c, c0))
WARN("Error adding reverse dependency from %s to %s",
ERROR("Failed to setgid to 0");
return -1;
}
+
if (setuid(0) < 0) {
ERROR("Failed to setuid to 0");
return -1;
}
+
if (setgroups(0, NULL) < 0)
WARN("Failed to clear groups");
if (unshare(CLONE_NEWNS) < 0)
return -1;
+
bdev = storage_init(c->lxc_conf);
if (!bdev)
return -1;
+
if (strcmp(bdev->type, "dir") != 0) {
if (unshare(CLONE_NEWNS) < 0) {
ERROR("error unsharing mounts");
storage_put(bdev);
return -1;
}
+
if (detect_shared_rootfs()) {
if (mount(NULL, "/", NULL, MS_SLAVE|MS_REC, NULL)) {
SYSERROR("Failed to make / rslave");
ERROR("Continuing...");
}
}
+
if (bdev->ops->mount(bdev) < 0) {
storage_put(bdev);
return -1;
if (!lxc_list_empty(&conf->hooks[LXCHOOK_CLONE])) {
/* Start of environment variable setup for hooks */
- if (c0->name && setenv("LXC_SRC_NAME", c0->name, 1)) {
+ if (c0->name && setenv("LXC_SRC_NAME", c0->name, 1))
SYSERROR("failed to set environment variable for source container name");
- }
- if (setenv("LXC_NAME", c->name, 1)) {
+
+ if (setenv("LXC_NAME", c->name, 1))
SYSERROR("failed to set environment variable for container name");
- }
- if (conf->rcfile && setenv("LXC_CONFIG_FILE", conf->rcfile, 1)) {
+
+ if (conf->rcfile && setenv("LXC_CONFIG_FILE", conf->rcfile, 1))
SYSERROR("failed to set environment variable for config path");
- }
- if (bdev->dest && setenv("LXC_ROOTFS_MOUNT", bdev->dest, 1)) {
+
+ if (bdev->dest && setenv("LXC_ROOTFS_MOUNT", bdev->dest, 1))
SYSERROR("failed to set environment variable for rootfs mount");
- }
- if (conf->rootfs.path && setenv("LXC_ROOTFS_PATH", conf->rootfs.path, 1)) {
+
+ if (conf->rootfs.path && setenv("LXC_ROOTFS_PATH", conf->rootfs.path, 1))
SYSERROR("failed to set environment variable for rootfs mount");
- }
if (run_lxc_hooks(c->name, "clone", conf, hookargs)) {
ERROR("Error executing clone hook for %s", c->name);
if (ret < 0 || ret >= MAXPATHLEN)
return -1;
+
if (!file_exists(path))
return 0;
+
if (!(fout = fopen(path, "w"))) {
SYSERROR("unable to open %s: ignoring", path);
return 0;
}
+
if (fprintf(fout, "%s", c->name) < 0) {
fclose(fout);
return -1;
}
+
if (fclose(fout) < 0)
return -1;
} else {
if (!p)
return -1;
+
*p = '\0';
ret = do_create_container_dir(path, conf);
*p = '/';
+
return ret;
}
/* Make sure the container doesn't yet exist. */
if (!newname)
newname = c->name;
+
if (!lxcpath)
lxcpath = do_lxcapi_get_config_path(c);
+
ret = snprintf(newpath, MAXPATHLEN, "%s/%s/config", lxcpath, newname);
if (ret < 0 || ret >= MAXPATHLEN) {
SYSERROR("clone: failed making config pathname");
clear_unexp_config_line(c->lxc_conf, "lxc.rootfs.path", false);
write_config(fd, c->lxc_conf);
close(fd);
+
c->lxc_conf->rootfs.path = origroot;
+
free(c->lxc_conf->unexpanded_config);
c->lxc_conf->unexpanded_config = saved_unexp_conf;
saved_unexp_conf = NULL;
if (ret < 0)
goto out;
-
/* update utsname */
if (!(flags & LXC_CLONE_KEEPNAME)) {
clear_unexp_config_line(c2->lxc_conf, "lxc.utsname", false);
SYSERROR("fork");
goto out;
}
+
if (pid > 0) {
ret = wait_for_pid(pid);
if (ret)
goto out;
+
container_mem_unlock(c);
return c2;
}
+
data.c0 = c;
data.c1 = c2;
data.flags = flags;
data.hookargs = hookargs;
+
if (am_guest_unpriv())
ret = userns_exec_full(c->lxc_conf, clone_update_rootfs_wrapper,
&data, "clone_update_rootfs_wrapper");
if (c2) {
if (!storage_copied)
c2->lxc_conf->rootfs.path = NULL;
+
c2->destroy(c2);
lxc_container_put(c2);
}
char **hookargs)
{
struct lxc_container * ret;
+
current_config = c ? c->lxc_conf : NULL;
ret = do_lxcapi_clone(c, newname, lxcpath, flags, bdevtype, bdevdata, newsize, hookargs);
current_config = NULL;
+
return ret;
}
ERROR("Renaming a container with snapshots is not supported");
return false;
}
+
bdev = storage_init(c->lxc_conf);
if (!bdev) {
ERROR("Failed to find original backing store type");
ERROR("Could not destroy existing container %s", c->name);
return false;
}
+
return true;
}
command.program = (char*)program;
command.argv = (char**)argv;
+
r = lxc_attach(c->name, c->config_path, lxc_attach_run_command, &command, options, &pid);
if (r < 0) {
ERROR("ups");
return r;
}
+
return lxc_wait_for_pid_status(pid);
}
static int lxcapi_attach_run_wait(struct lxc_container *c, lxc_attach_options_t *options, const char *program, const char * const argv[])
{
int ret;
+
current_config = c ? c->lxc_conf : NULL;
ret = do_lxcapi_attach_run_wait(c, options, program, argv);
current_config = NULL;
+
return ret;
}
int i = 0, ret;
fname = alloca(strlen(lxcpath) + 20);
+
while (1) {
sprintf(fname, "%s/snap%d", lxcpath, i);
+
ret = stat(fname, &sb);
if (ret != 0)
return i;
+
i++;
}
}
static bool get_snappath_dir(struct lxc_container *c, char *snappath)
{
int ret;
+
/*
* If the old style snapshot path exists, use it
* /var/lib/lxc -> /var/lib/lxcsnaps
ret = snprintf(snappath, MAXPATHLEN, "%ssnaps", c->config_path);
if (ret < 0 || ret >= MAXPATHLEN)
return false;
+
if (dir_exists(snappath)) {
ret = snprintf(snappath, MAXPATHLEN, "%ssnaps/%s", c->config_path, c->name);
if (ret < 0 || ret >= MAXPATHLEN)
return false;
+
return true;
}
ret = snprintf(snappath, MAXPATHLEN, "%s/%s/snaps", c->config_path, c->name);
if (ret < 0 || ret >= MAXPATHLEN)
return false;
+
return true;
}
ERROR("and keep the original container pristine.");
flags &= ~LXC_CLONE_SNAPSHOT | LXC_CLONE_MAYBE_SNAPSHOT;
}
+
c2 = do_lxcapi_clone(c, newname, snappath, flags, NULL, NULL, 0, NULL);
if (!c2) {
ERROR("clone of %s:%s failed", c->config_path, c->name);
ERROR("Failed to open %s", dfnam);
return -1;
}
+
if (fprintf(f, "%s", buffer) < 0) {
SYSERROR("Writing timestamp");
fclose(f);
return -1;
}
+
ret = fclose(f);
if (ret != 0) {
SYSERROR("Writing timestamp");
/* $p / $name / comment \0 */
int len = strlen(snappath) + strlen(newname) + 10;
char *path = alloca(len);
+
sprintf(path, "%s/%s/comment", snappath, newname);
return copy_file(commentfile, path) < 0 ? -1 : i;
}
s = NULL;
}
}
+
return s;
}
ret = snprintf(path, MAXPATHLEN, "%s/%s/ts", snappath, name);
if (ret < 0 || ret >= MAXPATHLEN)
return NULL;
+
fin = fopen(path, "r");
if (!fin)
return NULL;
+
(void) fseek(fin, 0, SEEK_END);
len = ftell(fin);
(void) fseek(fin, 0, SEEK_SET);
}
}
}
+
fclose(fin);
return s;
}
ERROR("path name too long");
return -1;
}
+
dir = opendir(snappath);
if (!dir) {
- INFO("failed to open %s - assuming no snapshots", snappath);
+ INFO("Failed to open %s - assuming no snapshots", snappath);
return 0;
}
ERROR("pathname too long");
goto out_free;
}
+
if (!file_exists(path2))
continue;
+
nsnaps = realloc(snaps, (count + 1)*sizeof(*snaps));
if (!nsnaps) {
SYSERROR("Out of memory");
goto out_free;
}
+
snaps = nsnaps;
snaps[count].free = lxcsnap_free;
snaps[count].name = strdup(direntp->d_name);
if (!snaps[count].name)
goto out_free;
+
snaps[count].lxcpath = strdup(snappath);
if (!snaps[count].lxcpath) {
free(snaps[count].name);
goto out_free;
}
+
snaps[count].comment_pathname = get_snapcomment_path(snappath, direntp->d_name);
snaps[count].timestamp = get_timestamp(snappath, direntp->d_name);
count++;
}
if (closedir(dir))
- WARN("failed to close directory");
+ WARN("Failed to close directory");
*ret_snaps = snaps;
return count;
out_free:
if (snaps) {
int i;
+
for (i=0; i<count; i++)
lxcsnap_free(&snaps[i]);
+
free(snaps);
}
+
if (closedir(dir))
- WARN("failed to close directory");
+ WARN("Failed to close directory");
+
return -1;
}
snap = lxc_container_new(snapname, clonelxcpath);
if (!snap || !lxcapi_is_defined(snap)) {
ERROR("Could not open snapshot %s", snapname);
+
if (snap)
lxc_container_put(snap);
+
storage_put(bdev);
return false;
}
if (!strcmp(bdev->type, "overlay") || !strcmp(bdev->type, "overlayfs"))
flags |= LXC_STORAGE_INTERNAL_OVERLAY_RESTORE;
+
rest = lxcapi_clone(snap, newname, c->config_path, flags, bdev->type,
NULL, 0, NULL);
storage_put(bdev);
if (rest && lxcapi_is_defined(rest))
b = true;
+
if (rest)
lxc_container_put(rest);
ERROR("Could not destroy snapshot %s", snapname);
goto err;
}
+
bret = true;
err:
if (snap)
lxc_container_put(snap);
+
return bret;
}
SYSERROR("opendir on snapshot path %s", path);
return false;
}
+
while ((direntp = readdir(dir))) {
if (!strcmp(direntp->d_name, "."))
continue;
+
if (!strcmp(direntp->d_name, ".."))
continue;
+
if (!do_snapshot_destroy(direntp->d_name, path)) {
bret = false;
continue;
ERROR(LXC_UNPRIV_EOPNOTSUPP, __FUNCTION__);
return false;
}
+
return add_remove_device_node(c, src_path, dest_path, true);
}
ERROR(LXC_UNPRIV_EOPNOTSUPP, __FUNCTION__);
return false;
}
+
return add_remove_device_node(c, src_path, dest_path, false);
}
ERROR("Network device \"%s\" not found", ifname);
else
ERROR("Failed to remove network device \"%s\"", ifname);
+
_exit(EXIT_FAILURE);
}
addr = (void *)opts + sizeof(*opts);
end = (void *)opts + size;
- for (; addr < end; addr++) {
- if (*addr) {
+
+ for (; addr < end; addr++)
+ if (*addr)
return -E2BIG;
- }
- }
}
/* If the caller has a smaller struct, let's zero out the end for them
ERROR("container is not running");
goto on_error;
}
+
ret = !__criu_pre_dump(c, valid_opts);
break;
case MIGRATE_DUMP:
ERROR("container is not running");
goto on_error;
}
+
ret = !__criu_dump(c, valid_opts);
break;
case MIGRATE_RESTORE:
ERROR("container is already running");
goto on_error;
}
+
ret = !__criu_restore(c, valid_opts);
break;
case MIGRATE_FEATURE_CHECK:
ret = do_lxcapi_attach_run_wait(c, options, program, (const char * const *)argv);
free((void*)argv);
+
out:
current_config = NULL;
return ret;
c->config_path = strdup(configpath);
else
c->config_path = strdup(lxc_global_config_value("lxc.lxcpath"));
-
if (!c->config_path) {
fprintf(stderr, "Failed to allocate memory for %s\n", name);
goto err;
container_destroy(c, NULL);
lxcapi_clear_config(c);
}
+
c->daemonize = true;
c->pidfile = NULL;
if (states)
for (i=0; i<MAX_STATE; i++)
states[i] = lxc_state2str(i);
+
return MAX_STATE;
}
if (cret)
*cret = NULL;
+
if (names)
*names = NULL;
if (!config_file_exists(lxcpath, direntp->d_name))
continue;
- if (names) {
+ if (names)
if (!add_to_array(names, direntp->d_name, cfound))
goto free_bad;
- }
+
cfound++;
if (!cret) {
if (!c) {
INFO("Container %s:%s has a config but could not be loaded",
lxcpath, direntp->d_name);
+
if (names)
if(!remove_from_array(names, direntp->d_name, cfound--))
goto free_bad;
+
continue;
}
+
if (!do_lxcapi_is_defined(c)) {
INFO("Container %s:%s has a config but is not defined",
lxcpath, direntp->d_name);
+
if (names)
if(!remove_from_array(names, direntp->d_name, cfound--))
goto free_bad;
+
lxc_container_put(c);
continue;
}
lxc_container_put(c);
goto free_bad;
}
+
nfound++;
}
free((*names)[i]);
free(*names);
}
+
if (cret && *cret) {
for (i=0; i<nfound; i++)
lxc_container_put((*cret)[i]);
free(*cret);
}
+
closedir(dir);
return -1;
}
if (cret)
*cret = NULL;
+
if (nret)
*nret = NULL;
return -1;
while (getline(&line, &len, f) != -1) {
-
char *p = strrchr(line, ' '), *p2;
if (!p)
continue;
p++;
+
if (*p != 0x40)
continue;
p++;
is_hashed = false;
+
if (strncmp(p, lxcpath, lxcpath_len) == 0) {
p += lxcpath_len;
} else if (strncmp(p, "lxc/", 4) == 0) {
char *recvpath = lxc_cmd_get_lxcpath(p);
if (!recvpath)
continue;
+
if (strncmp(lxcpath, recvpath, lxcpath_len) != 0) {
free(recvpath);
continue;
}
free(recvpath);
+
p = lxc_cmd_get_name(p);
if (!p)
continue;
if (!c) {
INFO("Container %s:%s is running but could not be loaded",
lxcpath, p);
+
remove_from_array(&ct_name, p, ct_name_cnt--);
if (is_hashed)
free(p);
+
continue;
}
lxc_container_put(c);
goto free_cret_list;
}
+
cret_cnt++;
}
*nret = ct_name;
else
goto free_ct_name;
+
goto out;
free_cret_list:
out:
free(line);
-
fclose(f);
return ret;
}
ret = -1;
goto free_active_name;
}
+
ct_cnt++;
}
+
free(active_name[i]);
active_name[i] = NULL;
}
+
free(active_name);
active_name = NULL;
active_cnt = 0;
ret = -1;
goto free_ct_list;
}
+
ct_list_cnt++;
}
if (cret)
*cret = ct_list;
- if (nret)
+ if (nret) {
*nret = ct_name;
- else {
+ } else {
ret = ct_cnt;
goto free_ct_name;
}
+
return ct_cnt;
free_ct_list:
projects / thirdparty / lxc.git / commitdiff
