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selftests: openat2: add RESOLVE_ conflict test 

Now that we reject conflicting RESOLVE_ flags, add a selftest to avoid
regressions.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Link: https://lore.kernel.org/r/20201027235044.5240-3-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Aleksa Sarai 2020-10-28 10:50:44 +11:00 committed by Christian Brauner
parent 398840f8bb
commit 4e62d55d77
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1 changed files with 7 additions and 1 deletions
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8
tools/testing/selftests/openat2/openat2_test.c
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@ -155,7 +155,7 @@ struct flag_test {
int err; int err;
}; };
#define NUM_OPENAT2_FLAG_TESTS 23 #define NUM_OPENAT2_FLAG_TESTS 24
void test_openat2_flags(void) void test_openat2_flags(void)
{ {
@ -210,6 +210,12 @@ void test_openat2_flags(void)
.how.flags = O_TMPFILE | O_RDWR, .how.flags = O_TMPFILE | O_RDWR,
.how.mode = 0x0000A00000000000ULL, .err = -EINVAL }, .how.mode = 0x0000A00000000000ULL, .err = -EINVAL },
/* ->resolve flags must not conflict. */
{ .name = "incompatible resolve flags (BENEATH | IN_ROOT)",
.how.flags = O_RDONLY,
.how.resolve = RESOLVE_BENEATH | RESOLVE_IN_ROOT,
.err = -EINVAL },
/* ->resolve must only contain RESOLVE_* flags. */ /* ->resolve must only contain RESOLVE_* flags. */
{ .name = "invalid how.resolve and O_RDONLY", { .name = "invalid how.resolve and O_RDONLY",
.how.flags = O_RDONLY, .how.flags = O_RDONLY,