mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-21 01:06:58 +00:00
118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
#include <sched.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <linux/limits.h>
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#include "zdtmtst.h"
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const char *test_doc = "Check multiple non-common root external mounts with same external master";
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const char *test_author = "Pavel Tikhomirov <ptikhomirov@virtuozzo.com>";
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char *dirname = "mnt_ext_multiple.test";
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char *source = "zdtm_ext_multiple";
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char *ext_source = "zdtm_ext_multiple.ext";
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TEST_OPTION(dirname, string, "directory name", 1);
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int main(int argc, char **argv)
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{
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char *root, testdir[PATH_MAX];
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char dst_a[PATH_MAX], dst_b[PATH_MAX];
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char src[PATH_MAX], src_a[PATH_MAX], src_b[PATH_MAX];
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char nsdst_a[PATH_MAX], nsdst_b[PATH_MAX];
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char *tmp = "/tmp/zdtm_ext_multiple.tmp";
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char *zdtm_newns = getenv("ZDTM_NEWNS");
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root = getenv("ZDTM_ROOT");
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if (root == NULL) {
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pr_perror("root");
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return 1;
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}
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if (!zdtm_newns) {
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pr_perror("ZDTM_NEWNS is not set");
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return 1;
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} else if (strcmp(zdtm_newns, "1")) {
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goto test;
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}
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/* Prepare directories in test root */
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sprintf(testdir, "%s/%s", root, dirname);
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mkdir(testdir, 0755);
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sprintf(dst_a, "%s/%s/dst_a", root, dirname);
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mkdir(dst_a, 0755);
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sprintf(dst_b, "%s/%s/dst_b", root, dirname);
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mkdir(dst_b, 0755);
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/* Prepare directories in criu root */
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mkdir(tmp, 0755);
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if (mount(source, tmp, "tmpfs", 0, NULL)) {
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pr_perror("mount tmpfs");
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return 1;
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}
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if (mount(NULL, tmp, NULL, MS_PRIVATE, NULL)) {
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pr_perror("make private");
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return 1;
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}
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sprintf(src, "%s/src", tmp);
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mkdir(src, 0755);
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/* Create a shared mount in criu mntns */
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if (mount(ext_source, src, "tmpfs", 0, NULL)) {
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pr_perror("mount tmpfs");
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return 1;
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}
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if (mount(NULL, src, NULL, MS_PRIVATE, NULL)) {
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pr_perror("make private");
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return 1;
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}
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if (mount(NULL, src, NULL, MS_SHARED, NULL)) {
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pr_perror("make shared");
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return 1;
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}
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/*
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* Create temporary mntns, next mounts will not show up in criu mntns
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*/
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if (unshare(CLONE_NEWNS)) {
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pr_perror("unshare");
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return 1;
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}
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/*
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* Populate to the tests root subdirectories of the src mount
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*/
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sprintf(src_a, "%s/src/a", tmp);
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mkdir(src_a, 0755);
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if (mount(src_a, dst_a, NULL, MS_BIND, NULL)) {
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pr_perror("bind");
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return 1;
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}
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sprintf(src_b, "%s/src/b", tmp);
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mkdir(src_b, 0755);
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if (mount(src_b, dst_b, NULL, MS_BIND, NULL)) {
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pr_perror("bind");
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return 1;
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}
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test:
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test_init(argc, argv);
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/* Make "external" mounts to have external master */
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sprintf(nsdst_a, "/%s/dst_a", dirname);
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if (mount(NULL, nsdst_a, NULL, MS_SLAVE, NULL)) {
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pr_perror("make slave");
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return 1;
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}
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sprintf(nsdst_b, "/%s/dst_b", dirname);
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if (mount(NULL, nsdst_b, NULL, MS_SLAVE, NULL)) {
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pr_perror("make slave");
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return 1;
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}
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test_daemon();
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test_waitsig();
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pass();
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return 0;
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}
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