X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fbasic%2Fvirt.c;h=9ea18e63f466a1251eb647f4cdc1bc32e4c85274;hb=e7082c89f1eac3ee251e659ee004f4d29fc284a6;hp=276df83526cb93db3e35c19898ba023aa36ea2e1;hpb=897fa0c6abbc3ca06bbde9ec9f53f07ae24d8eba;p=elogind.git diff --git a/src/basic/virt.c b/src/basic/virt.c index 276df8352..9ea18e63f 100644 --- a/src/basic/virt.c +++ b/src/basic/virt.c @@ -572,32 +572,18 @@ int running_in_userns(void) { #endif // 0 int running_in_chroot(void) { - _cleanup_free_ char *self_mnt = NULL, *pid1_mnt = NULL; - int r; - - /* Try to detect whether we are running in a chroot() environment. Specifically, check whether we have a - * different root directory than PID 1, even though we live in the same mount namespace as it. */ + int ret; #if 0 /// elogind does not allow to ignore chroots, we are never init! if (getenv_bool("SYSTEMD_IGNORE_CHROOT") > 0) return 0; #endif // 0 - r = files_same("/proc/1/root", "/"); - if (r < 0) - return r; - if (r > 0) - return 0; - - r = readlink_malloc("/proc/self/ns/mnt", &self_mnt); - if (r < 0) - return r; - - r = readlink_malloc("/proc/1/ns/mnt", &pid1_mnt); - if (r < 0) - return r; + ret = files_same("/proc/1/root", "/"); + if (ret < 0) + return ret; - return streq(self_mnt, pid1_mnt); /* Only if we live in the same namespace! */ + return ret == 0; } static const char *const virtualization_table[_VIRTUALIZATION_MAX] = {