157 lines
3.4 KiB
C
157 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright(c) 2016 Fujitsu Ltd.
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* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
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*/
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/*
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* Test Name: recvmsg03
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*
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* This test needs that rds socket is supported by system.
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* If the size of address for receiving data is set larger than
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* actaul size, recvmsg() will set msg_namelen incorrectly.
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*
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* Description:
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* This is a regression test and has been fixed by kernel commit:
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* 06b6a1cf6e776426766298d055bb3991957d90a7 (rds: set correct msg_namelen)
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*/
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#include <errno.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include "tst_safe_net.h"
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#include "tst_test.h"
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#ifndef AF_RDS
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# define AF_RDS 21
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#endif
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static void setup(void)
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{
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int res;
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res = socket(AF_RDS, SOCK_SEQPACKET, 0);
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if (res == -1) {
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if (errno == EAFNOSUPPORT)
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tst_brk(TCONF, "rds was not supported");
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else
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tst_brk(TBROK | TERRNO, "socket() failed with rds");
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}
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SAFE_CLOSE(res);
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}
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static void client(void)
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{
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int sock_fd1;
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char send_buf[128] = "hello world";
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struct sockaddr_in server_addr;
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struct sockaddr_in to_addr;
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struct msghdr msg;
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struct iovec iov;
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sock_fd1 = SAFE_SOCKET(AF_RDS, SOCK_SEQPACKET, 0);
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memset(&server_addr, 0, sizeof(server_addr));
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server_addr.sin_family = AF_INET;
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server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
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server_addr.sin_port = htons(4001);
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SAFE_BIND(sock_fd1, (struct sockaddr *) &server_addr, sizeof(server_addr));
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memset(&to_addr, 0, sizeof(to_addr));
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to_addr.sin_family = AF_INET;
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to_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
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to_addr.sin_port = htons(4000);
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msg.msg_name = &to_addr;
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msg.msg_namelen = sizeof(to_addr);
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_iov->iov_base = send_buf;
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msg.msg_iov->iov_len = strlen(send_buf) + 1;
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msg.msg_control = 0;
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msg.msg_controllen = 0;
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msg.msg_flags = 0;
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if (sendmsg(sock_fd1, &msg, 0) == -1) {
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tst_brk(TBROK | TERRNO,
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"sendmsg() failed to send data to server");
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}
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TST_CHECKPOINT_WAIT(1);
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SAFE_CLOSE(sock_fd1);
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}
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static void server(void)
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{
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int sock_fd2;
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static char recv_buf[128];
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struct sockaddr_in server_addr;
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struct sockaddr_in from_addr;
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struct msghdr msg;
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struct iovec iov;
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sock_fd2 = SAFE_SOCKET(AF_RDS, SOCK_SEQPACKET, 0);
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memset(&server_addr, 0, sizeof(server_addr));
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server_addr.sin_family = AF_INET;
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server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
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server_addr.sin_port = htons(4000);
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SAFE_BIND(sock_fd2, (struct sockaddr *) &server_addr, sizeof(server_addr));
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msg.msg_name = &from_addr;
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msg.msg_namelen = sizeof(from_addr) + 16;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_iov->iov_base = recv_buf;
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msg.msg_iov->iov_len = 128;
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msg.msg_control = 0;
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msg.msg_controllen = 0;
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msg.msg_flags = 0;
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TST_CHECKPOINT_WAKE(0);
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SAFE_RECVMSG(0, sock_fd2, &msg, 0);
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if (msg.msg_namelen != sizeof(from_addr)) {
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tst_res(TFAIL, "msg_namelen was set to %u incorrectly, "
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"expected %lu", msg.msg_namelen, sizeof(from_addr));
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} else {
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tst_res(TPASS, "msg_namelen was set to %u correctly",
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msg.msg_namelen);
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}
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TST_CHECKPOINT_WAKE(1);
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SAFE_CLOSE(sock_fd2);
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}
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static void verify_recvmsg(void)
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{
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pid_t pid;
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pid = SAFE_FORK();
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if (pid == 0) {
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TST_CHECKPOINT_WAIT(0);
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client();
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} else {
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server();
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tst_reap_children();
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}
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}
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static struct tst_test test = {
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.forks_child = 1,
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.needs_checkpoints = 1,
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.setup = setup,
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.test_all = verify_recvmsg,
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.tags = (const struct tst_tag[]) {
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{"linux-git", "06b6a1cf6e77"},
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{}
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}
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};
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