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authorKay Sievers <kay@vrfy.org>2012-07-15 22:10:46 +0200
committerKay Sievers <kay@vrfy.org>2012-07-15 22:10:46 +0200
commit4cb72937d3c10948e4904388ea27efae75775f08 (patch)
treebf7feaedf35aece23c30365747e75204b762ba60 /src/test/test-udev.c
parentcf3fb69acba245356022ccc087da640a6093584d (diff)
udev: get rid of TEST_PREFIX and use unshare() to fake /sys, /dev, /run
Diffstat (limited to 'src/test/test-udev.c')
-rw-r--r--src/test/test-udev.c44
1 files changed, 42 insertions, 2 deletions
diff --git a/src/test/test-udev.c b/src/test/test-udev.c
index 414eabc7b8..89827c02cb 100644
--- a/src/test/test-udev.c
+++ b/src/test/test-udev.c
@@ -26,6 +26,8 @@
#include <unistd.h>
#include <syslog.h>
#include <grp.h>
+#include <sched.h>
+#include <sys/mount.h>
#include <sys/signalfd.h>
#include "udev.h"
@@ -34,6 +36,40 @@ void udev_main_log(struct udev *udev, int priority,
const char *file, int line, const char *fn,
const char *format, va_list args) {}
+static int fake_filesystems(void) {
+ static const struct fakefs {
+ const char *src;
+ const char *target;
+ const char *error;
+ } fakefss[] = {
+ { "test/sys", "/sys", "failed to mount test /sys" },
+ { "test/dev", "/dev", "failed to mount test /dev" },
+ { "test/run", "/run", "failed to mount test /run" },
+ { "test/run", "/etc/udev/rules.d", "failed to mount empty /etc/udev/rules.d" },
+ { "test/run", "/usr/lib/udev/rules.d", "failed to mount empty /usr/lib/udev/rules.d" },
+ };
+ unsigned int i;
+ int err;
+
+ err = unshare(CLONE_NEWNS);
+ if (err < 0) {
+ err = -errno;
+ fprintf(stderr, "failed to call unshare() %m\n");
+ return err;
+ }
+
+ for (i = 0; i < ELEMENTSOF(fakefss); i++) {
+ err = mount(fakefss[i].src, fakefss[i].target, NULL, MS_BIND, NULL);
+ if (err < 0) {
+ err = -errno;
+ fprintf(stderr, "%s %m", fakefss[i].error);
+ return err;
+ }
+ }
+ return err;
+}
+
+
int main(int argc, char *argv[])
{
struct udev *udev;
@@ -44,7 +80,11 @@ int main(int argc, char *argv[])
const char *devpath;
const char *action;
sigset_t mask, sigmask_orig;
- int err = -EINVAL;
+ int err;
+
+ err = fake_filesystems();
+ if (err < 0)
+ return EXIT_FAILURE;
udev = udev_new();
if (udev == NULL)
@@ -68,7 +108,7 @@ int main(int argc, char *argv[])
rules = udev_rules_new(udev, 1);
- util_strscpyl(syspath, sizeof(syspath), TEST_PREFIX "/sys", devpath, NULL);
+ util_strscpyl(syspath, sizeof(syspath), "/sys", devpath, NULL);
dev = udev_device_new_from_syspath(udev, syspath);
if (dev == NULL) {
log_debug("unknown device '%s'\n", devpath);