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| author | Lennart Poettering <lennart@poettering.net> | 2016-04-26 14:57:04 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-04-26 14:57:04 +0200 |
| commit | d7fe83bbc23d9976433fddaf6509cc6bebc0ecdd (patch) | |
| tree | e5748844e740c3e7452040154fd3035b304eaee8 /src/basic/user-util.h | |
| parent | 6e3930c40f3379b7123e505a71ba4cd6db6c372f (diff) | |
| parent | 4aeb20f5aaec25ef969989b64d37377913b2a1ef (diff) | |
Merge pull request #3093 from poettering/nspawn-userns-magic
nspawn automatic user namespaces
Diffstat (limited to 'src/basic/user-util.h')
| -rw-r--r-- | src/basic/user-util.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/basic/user-util.h b/src/basic/user-util.h index c23f1d485d..8026eca3f4 100644 --- a/src/basic/user-util.h +++ b/src/basic/user-util.h @@ -21,6 +21,7 @@ #include <stdbool.h> #include <sys/types.h> +#include <unistd.h> bool uid_is_valid(uid_t uid); @@ -63,3 +64,7 @@ int take_etc_passwd_lock(const char *root); #define PTR_TO_GID(p) ((gid_t) (((uintptr_t) (p))-1)) #define GID_TO_PTR(u) ((void*) (((uintptr_t) (u))+1)) + +static inline bool userns_supported(void) { + return access("/proc/self/uid_map", F_OK) >= 0; +} |