diff options
| author | Sargun Dhillon <sargun@sargun.me> | 2020-01-07 20:59:27 +0300 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2020-01-13 23:49:54 +0300 |
| commit | 873dfd7881d1d8840bf69c8c164f5323db7417fa (patch) | |
| tree | 681e1f79da80c11111ec39e28d87d8362c276e15 /tools/testing/selftests/pidfd/pidfd.h | |
| parent | 9a2cef09c801de54feecd912303ace5c27237f12 (diff) | |
| download | linux-873dfd7881d1d8840bf69c8c164f5323db7417fa.tar.xz | |
test: Add test for pidfd getfd
The following tests:
* Fetch FD, and then compare via kcmp
* Make sure getfd can be blocked by blocking ptrace_may_access
* Making sure fetching bad FDs fails
* Make sure trying to set flags to non-zero results in an EINVAL
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20200107175927.4558-5-sargun@sargun.me
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'tools/testing/selftests/pidfd/pidfd.h')
| -rw-r--r-- | tools/testing/selftests/pidfd/pidfd.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h index c6bc68329f4b..d482515604db 100644 --- a/tools/testing/selftests/pidfd/pidfd.h +++ b/tools/testing/selftests/pidfd/pidfd.h @@ -36,6 +36,10 @@ #define __NR_clone3 -1 #endif +#ifndef __NR_pidfd_getfd +#define __NR_pidfd_getfd -1 +#endif + /* * The kernel reserves 300 pids via RESERVED_PIDS in kernel/pid.c * That means, when it wraps around any pid < 300 will be skipped. @@ -84,4 +88,9 @@ static inline int sys_pidfd_send_signal(int pidfd, int sig, siginfo_t *info, return syscall(__NR_pidfd_send_signal, pidfd, sig, info, flags); } +static inline int sys_pidfd_getfd(int pidfd, int fd, int flags) +{ + return syscall(__NR_pidfd_getfd, pidfd, fd, flags); +} + #endif /* __PIDFD_H */ |