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/*-
* Copyright (c) 2004 Robert N. M. Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define ACCF_NAME "dataready"
/*
* A number of small tests to confirm that attaching ACCF_DATA accept filters
* to inet4 ports works as expected. We test:
*
* - That no accept filter is attached on a newly created socket.
* - That bind() has no affect on the accept filter state.
* - That we can't attach an accept filter to a socket that isn't in the
* listen state.
* - That after we fail to attach the filter, querying the kernel shows no
* filter attached.
* - That we can attach an accept filter to a socket that is in the listen
* state.
* - That once an accept filter is attached, we can query to make sure it is
* attached.
* - That once an accept filter is attached, we can remove it and query to
* make sure it is removed.
*/
int
main(int argc, char *argv[])
{
struct accept_filter_arg afa;
struct sockaddr_in sin;
socklen_t len;
int lso, ret;
printf("1..11\n");
/*
* Step 0. Open socket().
*/
lso = socket(PF_INET, SOCK_STREAM, 0);
if (lso == -1)
errx(-1, "not ok 1 - socket: %s", strerror(errno));
printf("ok 1 - socket\n");
/*
* Step 1. After socket(). Should return EINVAL, since no accept
* filter should be attached.
*/
bzero(&afa, sizeof(afa));
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret != -1)
errx(-1, "not ok 2 - getsockopt() after socket() succeeded");
if (errno != EINVAL)
errx(-1, "not ok 2 - getsockopt() after socket() failed with "
"%d (%s)", errno, strerror(errno));
printf("ok 2 - getsockopt\n");
/*
* Step 2. Bind(). Ideally this will succeed.
*/
bzero(&sin, sizeof(sin));
sin.sin_len = sizeof(sin);
sin.sin_family = AF_INET;
sin.sin_port = htons(8080);
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(lso, (struct sockaddr *)&sin, sizeof(sin)) < 0)
errx(-1, "not ok 3 - bind %s", strerror(errno));
printf("ok 3 - bind\n");
/*
* Step 3: After bind(). getsockopt() should return EINVAL, since no
* accept filter should be attached.
*/
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret != -1)
errx(-1, "not ok 4 - getsockopt() after bind() succeeded");
if (errno != EINVAL)
errx(-1, "not ok 4 - getsockopt() after bind() failed with %d (%s)",
errno, strerror(errno));
printf("ok 4 - getsockopt\n");
/*
* Step 4: Setsockopt() before listen(). Should fail, since it's not
* yet a listen() socket.
*/
bzero(&afa, sizeof(afa));
strcpy(afa.af_name, ACCF_NAME);
ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));
if (ret == 0)
errx(-1, "not ok 5 - setsockopt() before listen() succeeded");
printf("ok 5 - setsockopt\n");
/*
* Step 5: Getsockopt() after pre-listen() setsockopt(). Should
* fail with EINVAL, since setsockopt() should have failed.
*/
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret == 0)
errx(-1, "not ok 6 - getsockopt() after pre-listen() setsockopt() "
"succeeded");
if (errno != EINVAL)
errx(-1, "not ok 6 - pre-listen() getsockopt() failed with %d (%s)",
errno, strerror(errno));
printf("ok 6 - getsockopt\n");
/*
* Step 6: listen().
*/
if (listen(lso, -1) < 0)
errx(-1, "not ok 7 - listen: %s", strerror(errno));
printf("ok 7 - listen\n");
/*
* Step 7: Getsockopt() after listen(). Should fail with EINVAL,
* since we have not installed accept filter yet.
*/
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret == 0)
errx(-1, "not ok 8 - getsockopt() after listen() but before "
"setsockopt() succeeded");
if (errno != EINVAL)
errx(-1, "not ok 8 - getsockopt() after listen() but before "
"setsockopt() failed with %d (%s)", errno, strerror(errno));
printf("ok 8 - getsockopt\n");
/*
* Step 8: After listen(). This call to setsockopt() should succeed.
*/
bzero(&afa, sizeof(afa));
strcpy(afa.af_name, ACCF_NAME);
ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));
if (ret != 0)
errx(-1, "not ok 9 - setsockopt() after listen() failed with %d "
"(%s)", errno, strerror(errno));
printf("ok 9 - setsockopt\n");
/*
* Step 9: After setsockopt(). Should succeed and identify
* ACCF_NAME.
*/
bzero(&afa, sizeof(afa));
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret != 0)
errx(-1, "not ok 10 - getsockopt() after listen() setsockopt() "
"failed with %d (%s)", errno, strerror(errno));
if (len != sizeof(afa))
errx(-1, "not ok 10 - getsockopt() after setsockopet() after "
"listen() returned wrong size (got %d expected %zd)", len,
sizeof(afa));
if (strcmp(afa.af_name, ACCF_NAME) != 0)
errx(-1, "not ok 10 - getsockopt() after setsockopt() after "
"listen() mismatch (got %s expected %s)", afa.af_name,
ACCF_NAME);
printf("ok 10 - getsockopt\n");
/*
* Step 10: Remove accept filter. After removing the accept filter
* getsockopt() should fail with EINVAL.
*/
ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0);
if (ret != 0)
errx(-1, "not ok 11 - setsockopt() after listen() "
"failed with %d (%s)", errno, strerror(errno));
bzero(&afa, sizeof(afa));
len = sizeof(afa);
ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
if (ret == 0)
errx(-1, "not ok 11 - getsockopt() after removing "
"the accept filter returns valid accept filter %s",
afa.af_name);
if (errno != EINVAL)
errx(-1, "not ok 11 - getsockopt() after removing the accept"
"filter failed with %d (%s)", errno, strerror(errno));
printf("ok 11 - setsockopt\n");
close(lso);
return (0);
}
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