Files
linux/tools/testing/selftests/capabilities/validate_cap.c
Bala-Vignesh-Reddy e6fbd1759c selftests: complete kselftest include centralization
This follow-up patch completes centralization of kselftest.h and
ksefltest_harness.h includes in remaining seltests files, replacing all
relative paths with a non-relative paths using shared -I include path in
lib.mk

Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on
riscv, arm64, x86_64 and powerpc arch.

[reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h]
  Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com
Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com
Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Günther Noack <gnoack@google.com>
Cc: Jakub Kacinski <kuba@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mickael Salaun <mic@digikod.net>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-11-27 14:24:31 -08:00

78 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <cap-ng.h>
#include <linux/capability.h>
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <sys/prctl.h>
#include <sys/auxv.h>
#include "kselftest.h"
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19)
# define HAVE_GETAUXVAL
#endif
static bool bool_arg(char **argv, int i)
{
if (!strcmp(argv[i], "0"))
return false;
else if (!strcmp(argv[i], "1"))
return true;
else {
ksft_exit_fail_msg("wrong argv[%d]\n", i);
return false;
}
}
int main(int argc, char **argv)
{
const char *atsec = "";
int ret;
/*
* Be careful just in case a setgid or setcapped copy of this
* helper gets out.
*/
if (argc != 5)
ksft_exit_fail_msg("wrong argc\n");
#ifdef HAVE_GETAUXVAL
if (getauxval(AT_SECURE))
atsec = " (AT_SECURE is set)";
else
atsec = " (AT_SECURE is not set)";
#endif
ret = capng_get_caps_process();
if (ret == -1) {
ksft_print_msg("capng_get_caps_process failed\n");
return 1;
}
if (capng_have_capability(CAPNG_EFFECTIVE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 1)) {
ksft_print_msg("Wrong effective state%s\n", atsec);
return 1;
}
if (capng_have_capability(CAPNG_PERMITTED, CAP_NET_BIND_SERVICE) != bool_arg(argv, 2)) {
ksft_print_msg("Wrong permitted state%s\n", atsec);
return 1;
}
if (capng_have_capability(CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 3)) {
ksft_print_msg("Wrong inheritable state%s\n", atsec);
return 1;
}
if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != bool_arg(argv, 4)) {
ksft_print_msg("Wrong ambient state%s\n", atsec);
return 1;
}
ksft_print_msg("%s: Capabilities after execve were correct\n",
"validate_cap:");
return 0;
}