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// SPDX-License-Identifier: GPL-2.0-or-later
/* SCTP kernel Implementation
* Copyright (c) 2003 Hewlett-Packard Development Company, L.P
* (C) Copyright IBM Corp. 2004
* Copyright (c) 2019 Martin Doucha <mdoucha@suse.cz>
*
* When init timeout is set to zero, a connect () crashed the system. This case
* tests the fix for the same.
*/
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h> /* for sockaddr_in */
#include <arpa/inet.h>
#include <netinet/sctp.h>
#include "tst_test.h"
#include "tst_net.h"
#ifdef PROT_SOCK
#define SCTP_TESTPORT_1 PROT_SOCK
#else
#define SCTP_TESTPORT_1 1024
#endif
#define SCTP_IP_LOOPBACK htonl(0x7f000001)
static const struct test_case {
__u16 streams;
int accept_err;
} testcase_list[] = {
{10, 0},
{65535, ENOMEM}
};
static void test_sctp(unsigned int n)
{
int sk1, sk2, sk3, msglen;
socklen_t len;
struct sockaddr_in lstn_addr, acpt_addr;
char *buffer_rcv;
struct sctp_initmsg sinmsg;
const char *message = "Hello World!\n";
const struct test_case *tc = testcase_list + n;
tst_res(TINFO, "Running test with %u streams", tc->streams);
sk1 = SAFE_SOCKET(PF_INET, SOCK_STREAM, IPPROTO_SCTP);
sk3 = SAFE_SOCKET(PF_INET, SOCK_STREAM, IPPROTO_SCTP);
lstn_addr.sin_family = AF_INET;
lstn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK;
lstn_addr.sin_port = htons(SCTP_TESTPORT_1);
SAFE_BIND(sk3, (struct sockaddr *) &lstn_addr, sizeof(lstn_addr));
len = sizeof(struct sctp_initmsg);
sinmsg.sinit_num_ostreams = tc->streams;
sinmsg.sinit_max_instreams = 10;
sinmsg.sinit_max_attempts = 1;
sinmsg.sinit_max_init_timeo = 0;
SAFE_SETSOCKOPT(sk1, SOL_SCTP, SCTP_INITMSG, &sinmsg, len);
sinmsg.sinit_num_ostreams = 10;
sinmsg.sinit_max_instreams = tc->streams;
SAFE_SETSOCKOPT(sk3, SOL_SCTP, SCTP_INITMSG, &sinmsg, len);
SAFE_LISTEN(sk3, 1);
len = sizeof(struct sockaddr_in);
TEST(connect(sk1, (struct sockaddr *) &lstn_addr, len));
if (TST_RET == -1 && tc->accept_err && TST_ERR == tc->accept_err) {
tst_res(TPASS, "connect() failed in an acceptable way");
SAFE_CLOSE(sk1);
SAFE_CLOSE(sk3);
return;
} else if (TST_RET < 0) {
tst_brk(TBROK | TTERRNO, "connect() failed");
}
sk2 = SAFE_ACCEPT(sk3, (struct sockaddr *) &acpt_addr, &len);
msglen = strlen(message) + 1;
TEST(sctp_sendmsg(sk1, message, msglen, (struct sockaddr *)&lstn_addr,
len, 0, 0, tc->streams - 1, 0, 0));
if (TST_RET != msglen) {
tst_brk(TBROK | TTERRNO, "sctp_sendmsg() failed");
}
buffer_rcv = malloc(msglen);
TEST(recv(sk2, buffer_rcv, msglen, MSG_NOSIGNAL));
if (TST_RET != msglen || strncmp(buffer_rcv, message, msglen)) {
tst_res(TFAIL | TTERRNO, "recv() failed");
} else {
tst_res(TPASS, "connect() with init timeout set to 0");
}
free(buffer_rcv);
SAFE_CLOSE(sk1);
SAFE_CLOSE(sk2);
SAFE_CLOSE(sk3);
}
static struct tst_test test = {
.test = test_sctp,
.tcnt = ARRAY_SIZE(testcase_list),
.needs_drivers = (const char *[]) {
"sctp",
NULL
},
};
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