diff options
Diffstat (limited to 'testcases/kernel/syscalls/ipc/shmget/shmget02.c')
| -rw-r--r-- | testcases/kernel/syscalls/ipc/shmget/shmget02.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/testcases/kernel/syscalls/ipc/shmget/shmget02.c b/testcases/kernel/syscalls/ipc/shmget/shmget02.c index 3788e711f..8168803a5 100644 --- a/testcases/kernel/syscalls/ipc/shmget/shmget02.c +++ b/testcases/kernel/syscalls/ipc/shmget/shmget02.c @@ -11,17 +11,17 @@ * * Test for ENOENT, EEXIST, EINVAL, EACCES, EPERM errors. * - * ENOENT - No segment exists for the given key and IPC_CREAT was not specified. - * EEXIST - the segment exists and IPC_CREAT | IPC_EXCL is given. - * EINVAL - A new segment was to be created and size is less than SHMMIN or - * greater than SHMMAX. Or a segment for the given key exists, but size is - * gran eater than the size of that segment. - * EACCES - The user does not have permission to access the shared memory segment. - * EPERM - The SHM_HUGETLB flag was specified, but the caller was not privileged - * (did not have the CAP_IPC_LOCK capability) and is not a member of the - * sysctl_hugetlb_shm_group group. - * ENOMEM - The SHM_HUGETLB flag was specified, the caller was privileged but not - * have enough hugepage memory space. + * - ENOENT - No segment exists for the given key and IPC_CREAT was not specified. + * - EEXIST - the segment exists and IPC_CREAT | IPC_EXCL is given. + * - EINVAL - A new segment was to be created and size is less than SHMMIN or + * greater than SHMMAX. Or a segment for the given key exists, but size is + * gran eater than the size of that segment. + * - EACCES - The user does not have permission to access the shared memory segment. + * - EPERM - The SHM_HUGETLB flag was specified, but the caller was not + * privileged (did not have the CAP_IPC_LOCK capability) and is not a member + * of the sysctl_hugetlb_shm_group group. + * - ENOMEM - The SHM_HUGETLB flag was specified, the caller was privileged but + * not have enough hugepage memory space. */ #include <errno.h> @@ -56,7 +56,7 @@ static struct tcase { {&shmkey1, SHM_SIZE, IPC_EXCL, 0, 0, ENOENT}, {&shmkey, SHM_SIZE, IPC_CREAT | IPC_EXCL, 0, 0, EEXIST}, {&shmkey1, SHMMIN - 1, IPC_CREAT | IPC_EXCL, 0, 0, EINVAL}, - {&shmkey1, SHMMAX + 1, IPC_CREAT | IPC_EXCL, 0, 0, EINVAL}, + {&shmkey1, 8192 + 1, IPC_CREAT | IPC_EXCL, 0, 0, EINVAL}, {&shmkey, SHM_SIZE * 2, IPC_EXCL, 0, 0, EINVAL}, {&shmkey, SHM_SIZE, SHM_RD, 1, 0, EACCES}, {&shmkey1, SHM_SIZE, IPC_CREAT | SHM_HUGETLB, 0, 1, EPERM}, @@ -149,4 +149,8 @@ static struct tst_test test = { .test = do_test, .tcnt = ARRAY_SIZE(tcases), .hugepages = {TST_NO_HUGEPAGES}, + .save_restore = (const struct tst_path_val[]) { + {"/proc/sys/kernel/shmmax", "8192", TST_SR_TCONF_MISSING | TST_SR_TBROK_RO}, + {} + }, }; |