1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright(c) 2016 Fujitsu Ltd.
4 * Author: Xiao Yang <[email protected]>
5 */
6
7 /*
8 * Test Name: sendto02
9 *
10 * Description:
11 * When sctp protocol is selected in socket(2) and buffer is invalid,
12 * sendto(2) should fail and set errno to EFAULT, but it sets errno
13 * to ENOMEM.
14 *
15 * This is a regression test and has been fixed by kernel commit:
16 * 6e51fe7572590d8d86e93b547fab6693d305fd0d (sctp: fix -ENOMEM result
17 * with invalid user space pointer in sendto() syscall)
18 */
19
20 #include <errno.h>
21 #include <string.h>
22 #include <unistd.h>
23 #include <sys/types.h>
24 #include <sys/socket.h>
25 #include <netinet/in.h>
26
27 #include "tst_test.h"
28
29 #ifndef IPPROTO_SCTP
30 # define IPPROTO_SCTP 132
31 #endif
32
33 static int sockfd;
34 static struct sockaddr_in sa;
35
setup(void)36 static void setup(void)
37 {
38 sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
39 if (sockfd == -1) {
40 if (errno == EPROTONOSUPPORT)
41 tst_brk(TCONF, "sctp protocol was not supported");
42 else
43 tst_brk(TBROK | TERRNO, "socket() failed with sctp");
44 }
45
46 memset(&sa, 0, sizeof(sa));
47 sa.sin_family = AF_INET;
48 sa.sin_addr.s_addr = inet_addr("127.0.0.1");
49 sa.sin_port = htons(11111);
50 }
51
cleanup(void)52 static void cleanup(void)
53 {
54 if (sockfd > 0)
55 SAFE_CLOSE(sockfd);
56 }
57
verify_sendto(void)58 static void verify_sendto(void)
59 {
60 TEST(sendto(sockfd, NULL, 1, 0, (struct sockaddr *) &sa, sizeof(sa)));
61 if (TST_RET != -1) {
62 tst_res(TFAIL, "sendto(fd, NULL, ...) succeeded unexpectedly");
63 return;
64 }
65
66 if (TST_ERR == EFAULT) {
67 tst_res(TPASS | TTERRNO,
68 "sendto(fd, NULL, ...) failed expectedly");
69 return;
70 }
71
72 tst_res(TFAIL | TTERRNO,
73 "sendto(fd, NULL, ...) failed unexpectedly, expected EFAULT");
74 }
75
76 static struct tst_test test = {
77 .setup = setup,
78 .cleanup = cleanup,
79 .test_all = verify_sendto,
80 .tags = (const struct tst_tag[]) {
81 {"linux-git", "6e51fe757259"},
82 {}
83 }
84 };
85