add fdpass tests
This commit is contained in:
christos
parent
f7dfa50e40
commit
e3b23739ec
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@ -1,10 +1,10 @@
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# $NetBSD: Makefile,v 1.10 2012/08/08 13:57:06 christos Exp $
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# $NetBSD: Makefile,v 1.11 2012/08/13 11:15:05 christos Exp $
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.include <bsd.own.mk>
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TESTSDIR= ${TESTSBASE}/net
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TESTS_SUBDIRS= route sys
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TESTS_SUBDIRS= fdpass route sys
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.if (${MKRUMP} != "no")
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TESTS_SUBDIRS+= bpf carp icmp if if_loop net
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.endif
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@ -0,0 +1,22 @@
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# $NetBSD: Makefile,v 1.1 2012/08/13 11:15:05 christos Exp $
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#
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.include <bsd.own.mk>
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TESTSDIR= ${TESTSBASE}/net/fdpass
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TESTS_SH= t_fdpass
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PROGS= fdpass64 fdpass32
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SRCS.fdpass64= fdpass.c
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MAN.fdpass64= # empty
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BINDIR.fdpass64= ${TESTSDIR}
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.if ${MACHINE} == "sparc64" || ${MACHINE} == "amd64"
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CFLAGS.fdpass32= -m32
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.endif
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SRCS.fdpass32= fdpass.c
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MAN.fdpass32= # empty
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BINDIR.fdpass32= ${TESTSDIR}
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.include <bsd.test.mk>
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@ -0,0 +1,231 @@
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/* $NetBSD: fdpass.c,v 1.1 2012/08/13 11:15:05 christos Exp $ */
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/* $OpenBSD: monitor_fdpass.c,v 1.19 2010/01/12 00:58:25 djm Exp $ */
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/*
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* Copyright 2001 Niels Provos <provos@citi.umich.edu>
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* All rights reserved.
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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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: fdpass.c,v 1.1 2012/08/13 11:15:05 christos Exp $");
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <sys/wait.h>
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#include <stdio.h>
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#include <errno.h>
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#include <err.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <string.h>
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static int debug;
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static int
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send_fd(int sock, int fd)
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{
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struct msghdr msg;
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union {
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struct cmsghdr hdr;
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char buf[1024];
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} cmsgbuf;
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struct cmsghdr *cmsg;
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struct iovec vec;
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char ch = '\0';
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ssize_t n;
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struct pollfd pfd;
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if (sizeof(cmsgbuf.buf) < CMSG_SPACE(sizeof(int)))
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errx(1, "%s: %zu < %zu, recompile", __func__,
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sizeof(cmsgbuf.buf), CMSG_SPACE(sizeof(int)));
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memset(&msg, 0, sizeof(msg));
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msg.msg_control = &cmsgbuf.buf;
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msg.msg_controllen = CMSG_SPACE(sizeof(int));
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cmsg = CMSG_FIRSTHDR(&msg);
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cmsg->cmsg_len = CMSG_LEN(sizeof(int));
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cmsg->cmsg_level = SOL_SOCKET;
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cmsg->cmsg_type = SCM_RIGHTS;
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*(int *)CMSG_DATA(cmsg) = fd;
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msg.msg_controllen = cmsg->cmsg_len;
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vec.iov_base = &ch;
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vec.iov_len = 1;
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msg.msg_iov = &vec;
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msg.msg_iovlen = 1;
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pfd.fd = sock;
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pfd.events = POLLOUT;
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while ((n = sendmsg(sock, &msg, 0)) == -1 &&
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(errno == EAGAIN || errno == EINTR)) {
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(void)poll(&pfd, 1, -1);
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}
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switch (n) {
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case -1:
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err(1, "%s: sendmsg(%d)", __func__, fd);
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case 1:
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if (debug)
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fprintf(stderr, "%d: send fd %d\n", getpid(), fd);
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return 0;
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default:
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errx(1, "%s: sendmsg: expected sent 1 got %ld",
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__func__, (long)n);
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}
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}
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static int
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recv_fd(int sock)
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{
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struct msghdr msg;
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union {
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struct cmsghdr hdr;
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char buf[1024];
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} cmsgbuf;
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struct cmsghdr *cmsg;
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struct iovec vec;
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ssize_t n;
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char ch;
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int fd;
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struct pollfd pfd;
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if (sizeof(cmsgbuf.buf) < CMSG_SPACE(sizeof(int)))
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errx(1, "%s: %zu < %zu, recompile", __func__,
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sizeof(cmsgbuf.buf), CMSG_SPACE(sizeof(int)));
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memset(&msg, 0, sizeof(msg));
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vec.iov_base = &ch;
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vec.iov_len = 1;
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msg.msg_iov = &vec;
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msg.msg_iovlen = 1;
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msg.msg_control = &cmsgbuf.buf;
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msg.msg_controllen = CMSG_SPACE(sizeof(int));
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pfd.fd = sock;
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pfd.events = POLLIN;
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while ((n = recvmsg(sock, &msg, 0)) == -1 &&
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(errno == EAGAIN || errno == EINTR)) {
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(void)poll(&pfd, 1, -1);
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}
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switch (n) {
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case -1:
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err(1, "%s: recvmsg", __func__);
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case 1:
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break;
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default:
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errx(1, "%s: recvmsg: expected received 1 got %ld",
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__func__, (long)n);
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}
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cmsg = CMSG_FIRSTHDR(&msg);
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if (cmsg == NULL)
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errx(1, "%s: no message header", __func__);
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if (cmsg->cmsg_type != SCM_RIGHTS)
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err(1, "%s: expected type %d got %d", __func__,
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SCM_RIGHTS, cmsg->cmsg_type);
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fd = (*(int *)CMSG_DATA(cmsg));
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if (debug)
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fprintf(stderr, "%d: recv fd %d\n", getpid(), fd);
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return fd;
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}
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static void usage(void) __attribute__((__noreturn__));
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static void
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usage(void)
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{
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fprintf(stderr, "Usage: %s [-vd] -i <input> -o <output>\n"
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"\t %s [-v] -p <progname>\n", getprogname(), getprogname());
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exit(EXIT_FAILURE);
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}
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int
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main(int argc, char *argv[])
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{
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int s[2], fd, status, c, verbose;
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char buf[1024], *prog;
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prog = NULL;
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s[0] = s[1] = -1;
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verbose = 0;
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while ((c = getopt(argc, argv, "di:o:p:")) != -1)
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switch (c) {
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case 'd':
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debug++;
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break;
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case 'i':
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s[0] = atoi(optarg);
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break;
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case 'o':
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s[1] = atoi(optarg);
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break;
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case 'p':
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prog = optarg;
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break;
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default:
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usage();
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}
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if ((s[0] == -1 && s[1] != -1) || (s[0] != -1 && s[1] == -1))
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usage();
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if (s[0] == -1) {
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if (socketpair(AF_LOCAL, SOCK_DGRAM, 0, s) == -1)
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err(1, "socketpair");
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} else
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goto recv;
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switch (fork()) {
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case -1:
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err(1, "fork");
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default:
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fd = open("foo", O_RDWR|O_CREAT|O_TRUNC, 0666);
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if (fd == -1)
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err(1, "open");
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send_fd(s[0], fd);
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wait(&status);
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return 0;
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case 0:
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if (prog != NULL) {
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char i[64], o[64];
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snprintf(i, sizeof(i), "%d", s[0]);
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snprintf(o, sizeof(o), "%d", s[1]);
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execlp(prog, prog, "-i", i, "-o", o, NULL);
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err(1, "execlp");
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}
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recv:
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fd = recv_fd(s[1]);
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if (verbose) {
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snprintf(buf, sizeof(buf), "ls -l /proc/%d/fd",
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getpid());
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system(buf);
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}
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if (write(fd, "foo\n", 4) == -1)
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err(1, "write");
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close(fd);
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return 0;
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}
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}
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@ -0,0 +1,99 @@
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# $NetBSD: t_fdpass.sh,v 1.1 2012/08/13 11:15:06 christos Exp $
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#
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# Copyright (c) 2012 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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have32() {
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local src="$(atf_get_srcdir)"
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if cmp "${src}/fdpass64" "${src}/fdpass32" > /dev/null
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then
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echo "no -m32 support"
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return 1
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else
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return 0
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fi
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}
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atf_test_case fdpass_normal
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fdpass_normal_head() {
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atf_set "descr" "Test file descriptor passing (default)"
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}
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fdpass_normal_body() {
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local src="$(atf_get_srcdir)"
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atf_check "${src}/fdpass64"
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}
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atf_test_case fdpass_compat
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fdpass_compat_head() {
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atf_set "descr" "Test file descriptor passing (compat)"
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}
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fdpass_compat_body() {
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local src="$(atf_get_srcdir)"
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have32 && atf_check "${src}/fdpass32"
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}
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atf_test_case fdpass_normal_compat
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fdpass_normal_compat_head() {
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atf_set "descr" "Test file descriptor passing (normal->compat)"
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}
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fdpass_normal_compat_body() {
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local src="$(atf_get_srcdir)"
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have32 && atf_check "${src}/fdpass64" -p "${src}/fdpass32"
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}
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atf_test_case fdpass_compat_normal
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fdpass_compat_normal_head() {
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atf_set "descr" "Test file descriptor passing (normal->compat)"
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}
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fdpass_compat_normal_body() {
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local src="$(atf_get_srcdir)"
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have32 && atf_check "${src}/fdpass32" -p "${src}/fdpass64"
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}
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atf_init_test_cases()
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{
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atf_add_test_case fdpass_normal
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if have32
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then
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atf_add_test_case fdpass_compat
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atf_add_test_case fdpass_compat_normal
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atf_add_test_case fdpass_normal_compat
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fi
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}
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