[CRIU] [PATCH 7/7] test: zdtm -- Add proc-self test
Andrew Vagin
avagin at parallels.com
Wed May 8 09:35:19 EDT 2013
On Wed, May 08, 2013 at 05:00:41PM +0400, Cyrill Gorcunov wrote:
> Just open /proc/self/ns/net and check if
> it remains the same on restore.
>
> Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
> ---
> test/zdtm/live/static/Makefile | 1 +
> test/zdtm/live/static/proc-self.c | 73 +++++++++++++++++++++++++++++++++++++++
> 2 files changed, 74 insertions(+)
> create mode 100644 test/zdtm/live/static/proc-self.c
>
> diff --git a/test/zdtm/live/static/Makefile b/test/zdtm/live/static/Makefile
> index 0750b6a..a2e5cd4 100644
> --- a/test/zdtm/live/static/Makefile
> +++ b/test/zdtm/live/static/Makefile
> @@ -66,6 +66,7 @@ TST_NOFILE = \
> xids00 \
> groups \
> file_fown \
> + proc-self \
> eventfs00 \
> signalfd00 \
> inotify00 \
> diff --git a/test/zdtm/live/static/proc-self.c b/test/zdtm/live/static/proc-self.c
> new file mode 100644
> index 0000000..feefc44
> --- /dev/null
> +++ b/test/zdtm/live/static/proc-self.c
> @@ -0,0 +1,73 @@
> +#define _GNU_SOURCE /* See feature_test_macros(7) */
> +#include <unistd.h>
> +
> +#include <errno.h>
> +#include <fcntl.h>
> +#include <stdlib.h>
> +#include <signal.h>
> +#include <string.h>
> +#include <utime.h>
> +
> +#include <sys/stat.h>
> +#include <sys/types.h>
> +
> +#include "zdtmtst.h"
> +
> +const char *test_doc = "Check for /proc/self/ns path restore";
> +const char *test_author = "Cyrill Gorcunov <gorcunov at openvz.org>";
> +
> +const char nspath[] = "/proc/self/ns/net";
> +
> +int read_fd_link(int lfd, char *buf, size_t size)
> +{
> + ssize_t ret;
> + char t[32];
> +
> + snprintf(t, sizeof(t), "/proc/self/fd/%d", lfd);
> + ret = readlink(t, buf, size);
size - 1 and the last byte for EOL
> + if (ret < 0) {
> + err("Can't read link of fd %d", lfd);
> + return -1;
> + }
> + buf[ret] = 0;
> +
> + return 0;
> +}
> +
> +int main(int argc, char *argv[])
> +{
> + char path_orig[64], path_new[64];
> + int fd_self;
> +
> + test_init(argc, argv);
> +
> + memset(path_orig, 0, sizeof(path_orig));
> + memset(path_new, 0, sizeof(path_new));
> +
> + fd_self = open(nspath, O_RDONLY);
> + if (fd_self < 0) {
> + err("Can't open %s", nspath);
> + return -1;
> + }
> +
> + if (read_fd_link(fd_self, path_orig, sizeof(path_orig))) {
> + err("Can't fill original path");
> + return -1;
> + }
> +
> + test_daemon();
> + test_waitsig();
> +
> + if (read_fd_link(fd_self, path_new, sizeof(path_new))) {
> + err("Can't fill new path");
> + return -1;
> + }
> +
> + if (memcmp(path_orig, path_new, sizeof(path_orig))) {
> + fail("Paths mismatch %s %s\n", path_orig, path_new);
> + return -1;
> + }
> +
> + pass();
> + return 0;
> +}
> --
> 1.8.1.4
>
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