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libcriu: enable setting of RPC config file

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Container runtimes that use libcriu (e.g., crun) need to specify a CRIU
configuration file that allows to overwrite default options set via RPC.
This is particularly useful to set options such as `--tcp-established`
via `/etc/criu/runc.conf` in Kubernetes.

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
This commit is contained in:
Radostin Stoyanov 2025-10-07 16:31:17 +01:00 • committed by Andrei Vagin
parent 07ad2473f2
commit 2878faa74c
2 changed files with 21 additions and 0 deletions
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19
lib/c/criu.c
View file

@ -2041,3 +2041,22 @@ void criu_set_empty_ns(int namespaces)
{
criu_local_set_empty_ns(global_opts, namespaces);
}
int criu_local_set_config_file(criu_opts *opts, const char *path)
{
char *new;
new = strdup(path);
if (!new)
return -ENOMEM;
free(opts->rpc->config_file);
opts->rpc->config_file = new;
return 0;
}
int criu_set_config_file(const char *path)
{
return criu_local_set_config_file(global_opts, path);
}

2
lib/c/criu.h
View file

@ -116,6 +116,7 @@ void criu_set_pidfd_store_sk(int sk);
int criu_set_network_lock(enum criu_network_lock_method method);
int criu_join_ns_add(const char *ns, const char *ns_file, const char *extra_opt);
void criu_set_mntns_compat_mode(bool val);
int criu_set_config_file(const char *path);
/*
* The criu_notify_arg_t na argument is an opaque
@ -281,6 +282,7 @@ void criu_local_set_pidfd_store_sk(criu_opts *opts, int sk);
int criu_local_set_network_lock(criu_opts *opts, enum criu_network_lock_method method);
int criu_local_join_ns_add(criu_opts *opts, const char *ns, const char *ns_file, const char *extra_opt);
void criu_local_set_mntns_compat_mode(criu_opts *opts, bool val);
int criu_local_set_config_file(criu_opts *opts, const char *path);
void criu_local_set_notify_cb(criu_opts *opts, int (*cb)(char *action, criu_notify_arg_t na));