Add new command line option: --cgroup-yard

Instead of creating cgroup yard in CRIU, now we can create it externally
and pass it to CRIU. Useful if somebody doesn't want to grant
CAP_SYS_ADMIN to CRIU.

Signed-off-by: Michał Cłapiński <mclapinski@google.com>

2 files changed, 14 insertions, 0 deletions

diff --git a/lib/c/criu.c b/lib/c/criu.c
index 17d5c3983..14ddff26d 100644
--- a/lib/c/criu.c
+++ b/lib/c/criu.c
@@ -987,6 +987,19 @@ int criu_local_add_cg_dump_controller(criu_opts *opts, const char *name)
 	return 0;
 }
 
+int criu_local_add_cg_yard(criu_opts *opts, const char *path)
+{
+	char *new;
+
+	new = strdup(path);
+	if (!new)
+		return -ENOMEM;
+
+	free(opts->rpc->cgroup_yard);
+	opts->rpc->cgroup_yard = new;
+	return 0;
+}
+
 int criu_add_skip_mnt(const char *mnt)
 {
 	return criu_local_add_skip_mnt(global_opts, mnt);
diff --git a/lib/c/criu.h b/lib/c/criu.h
index 76f3547fc..cb37c5291 100644
--- a/lib/c/criu.h
+++ b/lib/c/criu.h
@@ -207,6 +207,7 @@ int criu_local_add_irmap_path(criu_opts *opts, const char *path);
 int criu_local_add_cg_props(criu_opts *opts, const char *stream);
 int criu_local_add_cg_props_file(criu_opts *opts, const char *path);
 int criu_local_add_cg_dump_controller(criu_opts *opts, const char *name);
+int criu_local_add_cg_yard(criu_opts *opts, const char *path);
 int criu_local_add_inherit_fd(criu_opts *opts, int fd, const char *key);
 int criu_local_add_external(criu_opts *opts, const char *key);
 int criu_local_set_page_server_address_port(criu_opts *opts, const char *address, int port);