1 /*
2 * Copyright(c) 2016 Fujitsu Ltd.
3 * Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * You should have received a copy of the GNU General Public License
14 * alone with this program.
15 */
16
17 /*
18 * Test Name: sendto02
19 *
20 * Description:
21 * When sctp protocol is selected in socket(2) and buffer is invalid,
22 * sendto(2) should fail and set errno to EFAULT, but it sets errno
23 * to ENOMEM.
24 *
25 * This is a regression test and has been fixed by kernel commit:
26 * 6e51fe7572590d8d86e93b547fab6693d305fd0d (sctp: fix -ENOMEM result
27 * with invalid user space pointer in sendto() syscall)
28 */
29
30 #include <errno.h>
31 #include <string.h>
32 #include <unistd.h>
33 #include <sys/types.h>
34 #include <sys/socket.h>
35 #include <netinet/in.h>
36
37 #include "tst_test.h"
38
39 #ifndef IPPROTO_SCTP
40 # define IPPROTO_SCTP 132
41 #endif
42
43 static int sockfd;
44 static struct sockaddr_in sa;
45
setup(void)46 static void setup(void)
47 {
48 sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
49 if (sockfd == -1) {
50 if (errno == EPROTONOSUPPORT)
51 tst_brk(TCONF, "sctp protocol was not supported");
52 else
53 tst_brk(TBROK | TERRNO, "socket() failed with sctp");
54 }
55
56 memset(&sa, 0, sizeof(sa));
57 sa.sin_family = AF_INET;
58 sa.sin_addr.s_addr = inet_addr("127.0.0.1");
59 sa.sin_port = htons(11111);
60 }
61
cleanup(void)62 static void cleanup(void)
63 {
64 if (sockfd > 0)
65 SAFE_CLOSE(sockfd);
66 }
67
verify_sendto(void)68 static void verify_sendto(void)
69 {
70 TEST(sendto(sockfd, NULL, 1, 0, (struct sockaddr *) &sa, sizeof(sa)));
71 if (TST_RET != -1) {
72 tst_res(TFAIL, "sendto(fd, NULL, ...) succeeded unexpectedly");
73 return;
74 }
75
76 if (TST_ERR == EFAULT) {
77 tst_res(TPASS | TTERRNO,
78 "sendto(fd, NULL, ...) failed expectedly");
79 return;
80 }
81
82 tst_res(TFAIL | TTERRNO,
83 "sendto(fd, NULL, ...) failed unexpectedly, expected EFAULT");
84 }
85
86 static struct tst_test test = {
87 .setup = setup,
88 .cleanup = cleanup,
89 .test_all = verify_sendto,
90 };
91