- Fix for possible unset uid/gid in toproto - Fix for default mtree style - Update libelf - Importing libexecinfo - Resynchronize GCC, mpc, gmp, mpfr - build.sh: Replace params with show-params. This has been done as the make target has been renamed in the same way, while a new target named params has been added. This new target generates a file containing all the parameters, instead of printing it on the console. - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org) get getservbyport() out of the inner loop Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
195 lines
4.9 KiB
C
195 lines
4.9 KiB
C
/* $NetBSD: t_pktinfo.c,v 1.2 2013/10/19 17:45:01 christos Exp $ */
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/*-
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_pktinfo.c,v 1.2 2013/10/19 17:45:01 christos Exp $");
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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static const char traffic[] = "foo";
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#ifdef TEST
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#include <err.h>
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#define ERR(msg) err(EXIT_FAILURE, msg)
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#define ERRX(msg, a) errx(EXIT_FAILURE, msg, a)
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#define ERRX2(msg, a1, a2) errx(EXIT_FAILURE, msg, a1, a2)
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#else
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#include <atf-c.h>
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#define ERR(msg) ATF_REQUIRE_MSG(0, "%s: %s", msg, strerror(errno))
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#define ERRX(msg, a) ATF_REQUIRE_MSG(0, msg, a)
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#define ERRX2(msg, a1, a2) ATF_REQUIRE_MSG(0, msg, a1, a2)
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#endif
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static int
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server(struct sockaddr_in *sin) {
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int s, one;
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socklen_t len = sizeof(*sin);
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if ((s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
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ERR("socket");
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memset(sin, 0, len);
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sin->sin_family = AF_INET;
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sin->sin_len = len;
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sin->sin_port = 0;
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sin->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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if (bind(s, (const struct sockaddr *)sin, len) == -1)
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ERR("bind");
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if (getsockname(s, (struct sockaddr *)sin, &len) == -1)
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ERR("getsockname");
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one = 1;
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if (setsockopt(s, IPPROTO_IP, IP_PKTINFO, &one, sizeof(one)) == -1)
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ERR("setsockopt");
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if (setsockopt(s, IPPROTO_IP, IP_RECVPKTINFO, &one, sizeof(one)) == -1)
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ERR("setsockopt");
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return s;
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}
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static int
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client(struct sockaddr_in *sin) {
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int s;
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if ((s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
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ERR("socket");
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if (sendto(s, traffic, sizeof(traffic), 0,
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(const struct sockaddr *)sin, sizeof(*sin)) == -1)
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ERR("sendto");
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return s;
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}
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static void
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receive(int s) {
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struct msghdr msg;
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struct cmsghdr *cmsg;
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struct iovec iov;
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char buf[sizeof(traffic)];
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struct in_pktinfo *ipi;
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char control[CMSG_SPACE(sizeof(*ipi)) * 2];
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memset(&msg, 0, sizeof(msg));
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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msg.msg_iov = &iov;
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memset(&iov, 0, sizeof(iov));
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iov.iov_base = buf;
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iov.iov_len = sizeof(buf);
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msg.msg_iovlen = 1;
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msg.msg_control = control;
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msg.msg_controllen = sizeof(control);
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msg.msg_flags = 0;
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if (recvmsg(s, &msg, 0) == -1)
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ERR("recvmsg");
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for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
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cmsg = CMSG_NXTHDR(&msg, cmsg)) {
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if (cmsg->cmsg_level != IPPROTO_IP)
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ERRX("bad level %d", cmsg->cmsg_level);
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const char *m;
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switch (cmsg->cmsg_type) {
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case IP_PKTINFO:
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m = "pktinfo";
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break;
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case IP_RECVPKTINFO:
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m = "recvpktinfo";
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break;
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default:
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m = NULL;
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ERRX("bad type %d", cmsg->cmsg_type);
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}
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ipi = (void *)CMSG_DATA(cmsg);
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#ifdef TEST
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printf("%s message received on address %s at interface %d\n",
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m, inet_ntoa(ipi->ipi_addr), ipi->ipi_ifindex);
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#else
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__USE(m);
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ATF_REQUIRE_MSG(ipi->ipi_addr.s_addr == htonl(INADDR_LOOPBACK),
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"address 0x%x != 0x%x", ipi->ipi_addr.s_addr,
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htonl(INADDR_LOOPBACK));
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#endif
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}
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if (strcmp(traffic, buf) != 0)
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ERRX2("Bad message '%s' != '%s'", buf, traffic);
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}
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static void
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doit(void)
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{
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struct sockaddr_in sin;
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int s, c;
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s = server(&sin);
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c = client(&sin);
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receive(s);
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close(s);
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close(c);
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}
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#ifndef TEST
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ATF_TC(pktinfo);
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ATF_TC_HEAD(pktinfo, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Check that IP_PKTINFO and "
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"IP_RECVPKTINFO work");
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}
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ATF_TC_BODY(pktinfo, tc)
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{
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doit();
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, pktinfo);
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return atf_no_error();
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}
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#else
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int
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main(int argc, char *argv[]) {
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doit();
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return 0;
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}
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#endif
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