114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* HISTORY
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* 03/2001 - Written by Wayne Boyer
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*/
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/*\
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* [Description]
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*
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* Test for semctl() EINVAL and EFAULT errors
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*/
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#include "tst_safe_sysv_ipc.h"
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#include "tst_test.h"
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#include "lapi/sem.h"
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#include "libnewipc.h"
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#include "lapi/syscalls.h"
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static int sem_id = -1;
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static int bad_id = -1;
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static struct semid_ds sem_ds;
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static union semun sem_un = {.buf = &sem_ds};
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static void *semds_ptr = &sem_un;
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static void *bad_ptr;
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static union semun arg = {0};
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static int libc_semctl(int semid, int semnum, int cmd, ...)
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{
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va_list ap;
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va_start(ap, cmd);
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arg = va_arg(ap, union semun);
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va_end(ap);
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return semctl(semid, semnum, cmd, arg);
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}
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static int sys_semctl(int semid, int semnum, int cmd, ...)
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{
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va_list ap;
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va_start(ap, cmd);
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arg = va_arg(ap, union semun);
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va_end(ap);
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return tst_syscall(__NR_semctl, semid, semnum, cmd, arg);
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}
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static struct tcases {
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int *sem_id;
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int ipc_cmd;
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void **buf;
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int error;
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char *message;
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} tests[] = {
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{&sem_id, -1, &semds_ptr, EINVAL, "invalid IPC command"},
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{&bad_id, IPC_STAT, &semds_ptr, EINVAL, "invalid sem id"},
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{&sem_id, GETALL, &bad_ptr, EFAULT, "invalid union arg"},
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{&sem_id, IPC_SET, &bad_ptr, EFAULT, "invalid union arg"}
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};
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static struct test_variants
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{
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int (*semctl)(int semid, int semnum, int cmd, ...);
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char *desc;
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} variants[] = {
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{ .semctl = libc_semctl, .desc = "libc semctl()"},
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#if (__NR_sys_semctl != __LTP__NR_INVALID_SYSCALL)
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{ .semctl = sys_semctl, .desc = "__NR_semctl syscall"},
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#endif
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};
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static void verify_semctl(unsigned int n)
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{
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struct tcases *tc = &tests[n];
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struct test_variants *tv = &variants[tst_variant];
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if (tc->error == EFAULT && tv->semctl == libc_semctl) {
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tst_res(TCONF, "EFAULT is skipped for libc variant");
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return;
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}
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TST_EXP_FAIL(tv->semctl(*(tc->sem_id), 0, tc->ipc_cmd, *(tc->buf)),
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tc->error, "semctl() with %s", tc->message);
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}
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static void setup(void)
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{
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static key_t semkey;
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struct test_variants *tv = &variants[tst_variant];
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tst_res(TINFO, "Testing variant: %s", tv->desc);
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semkey = GETIPCKEY();
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sem_id = SAFE_SEMGET(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA);
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bad_ptr = tst_get_bad_addr(NULL);
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}
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static void cleanup(void)
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{
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if (sem_id != -1)
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SAFE_SEMCTL(sem_id, 0, IPC_RMID);
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}
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static struct tst_test test = {
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_semctl,
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.tcnt = ARRAY_SIZE(tests),
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.test_variants = ARRAY_SIZE(variants),
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};
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