106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
// 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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* 03/2001 - Written by Wayne Boyer
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* 12/03/2008 Matthieu Fertré (Matthieu.Fertre@irisa.fr)
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* Copyright (c) 2018 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*
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* Test for EACCES, EFAULT and EINVAL errors using a variety of incorrect
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* calls.
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*/
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#include <errno.h>
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#include <pwd.h>
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#include "tst_test.h"
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#include "tst_safe_sysv_ipc.h"
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#include "libnewipc.h"
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static int msg_id1 = -1;
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static int msg_id2 = -1;
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static int msg_id3 = -1;
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static int bad_q = -1;
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struct msqid_ds q_buf;
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struct tcase {
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int *msg_id;
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int cmd;
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struct msqid_ds *buf;
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int error;
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} tc[] = {
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/* EACCES - there is no read permission for the queue */
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{&msg_id1, IPC_STAT, &q_buf, EACCES},
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/* EFAULT - the structure address is invalid - IPC_STAT */
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{&msg_id2, IPC_STAT, (struct msqid_ds *)-1, EFAULT},
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/* EFAULT - the structure address is invalid - IPC_SET */
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{&msg_id2, IPC_SET, (struct msqid_ds *)-1, EFAULT},
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/* EINVAL - the command (-1) is invalid */
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{&msg_id2, -1, &q_buf, EINVAL},
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/* EINVAL - the queue id is invalid - IPC_STAT */
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{&bad_q, IPC_STAT, &q_buf, EINVAL},
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/* EINVAL - the queue id is invalid - IPC_SET */
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{&bad_q, IPC_SET, &q_buf, EINVAL},
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/* EPERM - cannot delete root owned queue */
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{&msg_id3, IPC_RMID, NULL, EPERM},
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};
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static void verify_msgctl(unsigned int i)
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{
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TEST(msgctl(*(tc[i].msg_id), tc[i].cmd, tc[i].buf));
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if (TST_RET != -1) {
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tst_res(TFAIL, "msgctl() returned %li", TST_RET);
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return;
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}
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if (TST_ERR == tc[i].error) {
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tst_res(TPASS | TTERRNO, "msgctl(%i, %i, %p)",
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*tc[i].msg_id, tc[i].cmd, tc[i].buf);
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return;
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}
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tst_res(TFAIL | TTERRNO, "msgctl(%i, %i, %p) expected %s",
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*tc[i].msg_id, tc[i].cmd, tc[i].buf, tst_strerrno(tc[i].error));
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}
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static void setup(void)
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{
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key_t msgkey1, msgkey2;
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struct passwd *ltpuser;
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msg_id3 = SAFE_MSGGET(IPC_PRIVATE, IPC_CREAT | MSG_RW);
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ltpuser = SAFE_GETPWNAM("nobody");
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SAFE_SETEUID(ltpuser->pw_uid);
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msgkey1 = GETIPCKEY();
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msgkey2 = GETIPCKEY();
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msg_id1 = SAFE_MSGGET(msgkey1, IPC_CREAT | IPC_EXCL);
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msg_id2 = SAFE_MSGGET(msgkey2, IPC_CREAT | IPC_EXCL | MSG_RD | MSG_WR);
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}
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static void cleanup(void)
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{
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if (msg_id1 >= 0)
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SAFE_MSGCTL(msg_id1, IPC_RMID, NULL);
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if (msg_id2 >= 0)
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SAFE_MSGCTL(msg_id2, IPC_RMID, NULL);
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if (msg_id3 >= 0) {
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SAFE_SETEUID(0);
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SAFE_MSGCTL(msg_id3, IPC_RMID, NULL);
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}
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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_msgctl,
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.tcnt = ARRAY_SIZE(tc),
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.needs_tmpdir = 1,
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.needs_root = 1,
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};
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