273 lines
9.0 KiB
C
273 lines
9.0 KiB
C
/*-
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* Copyright (c) 2004 Robert N. M. Watson
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define ACCF_NAME "dataready"
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/*
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* A number of small tests to confirm that attaching ACCF_DATA accept filters
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* to inet4 ports works as expected. We test:
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*
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* - That no accept filter is attached on a newly created socket.
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* - That bind() has no affect on the accept filter state.
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* - That we can't attach an accept filter to a socket that isn't in the
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* listen state.
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* - That after we fail to attach the filter, querying the kernel shows no
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* filter attached.
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* - That we can attach an accept filter to a socket that is in the listen
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* state.
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* - That once an accept filter is attached, we can query to make sure it is
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* attached.
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* - That once an accept filter is attached, we can remove it and query to
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* make sure it is removed.
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*/
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int
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main(void)
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{
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struct accept_filter_arg afa;
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struct sockaddr_in sin;
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socklen_t len;
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int lso, so, i, ret;
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/* XXX: PLAIN_TEST_REQUIRE_MODULE "backport" for stable/9 */
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const char *_mod_name = "accf_data";
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if (modfind(_mod_name) == -1) {
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printf("1..0 # SKIP - module %s could not be resolved: %s\n",
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_mod_name, strerror(errno));
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_exit(0);
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}
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/* XXX: PLAIN_TEST_REQUIRE_MODULE for stable/9 */
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printf("1..12\n");
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/*
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* Step 0. Open socket().
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*/
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lso = socket(PF_INET, SOCK_STREAM, 0);
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if (lso == -1)
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errx(-1, "not ok 1 - socket: %s", strerror(errno));
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printf("ok 1 - socket\n");
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/*
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* Step 1. After socket(). Should return EINVAL, since no accept
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* filter should be attached.
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*/
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bzero(&afa, sizeof(afa));
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret != -1)
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errx(-1, "not ok 2 - getsockopt() after socket() succeeded");
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if (errno != EINVAL)
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errx(-1, "not ok 2 - getsockopt() after socket() failed with "
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"%d (%s)", errno, strerror(errno));
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printf("ok 2 - getsockopt\n");
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/*
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* Step 2. Bind(). Ideally this will succeed.
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*/
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setsockopt(lso, SOL_SOCKET, SO_REUSEADDR, &lso, sizeof(lso));
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bzero(&sin, sizeof(sin));
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sin.sin_len = sizeof(sin);
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sin.sin_family = AF_INET;
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sin.sin_port = htons(8080);
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sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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if (bind(lso, (struct sockaddr *)&sin, sizeof(sin)) < 0)
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errx(-1, "not ok 3 - bind %s", strerror(errno));
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printf("ok 3 - bind\n");
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/*
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* Step 3: After bind(). getsockopt() should return EINVAL, since no
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* accept filter should be attached.
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*/
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret != -1)
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errx(-1, "not ok 4 - getsockopt() after bind() succeeded");
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if (errno != EINVAL)
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errx(-1, "not ok 4 - getsockopt() after bind() failed with %d (%s)",
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errno, strerror(errno));
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printf("ok 4 - getsockopt\n");
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/*
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* Step 4: Setsockopt() before listen(). Should fail, since it's not
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* yet a listen() socket.
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*/
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bzero(&afa, sizeof(afa));
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strncpy(afa.af_name, ACCF_NAME, sizeof(afa.af_name));
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ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));
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if (ret == 0)
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errx(-1, "not ok 5 - setsockopt() before listen() succeeded");
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printf("ok 5 - setsockopt\n");
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/*
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* Step 5: Getsockopt() after pre-listen() setsockopt(). Should
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* fail with EINVAL, since setsockopt() should have failed.
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*/
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret == 0)
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errx(-1, "not ok 6 - getsockopt() after pre-listen() setsockopt() "
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"succeeded");
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if (errno != EINVAL)
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errx(-1, "not ok 6 - pre-listen() getsockopt() failed with %d (%s)",
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errno, strerror(errno));
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printf("ok 6 - getsockopt\n");
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/*
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* Step 6: listen().
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*/
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if (listen(lso, -1) < 0)
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errx(-1, "not ok 7 - listen: %s", strerror(errno));
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printf("ok 7 - listen\n");
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/*
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* Step 7: Getsockopt() after listen(). Should fail with EINVAL,
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* since we have not installed accept filter yet.
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*/
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret == 0)
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errx(-1, "not ok 8 - getsockopt() after listen() but before "
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"setsockopt() succeeded");
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if (errno != EINVAL)
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errx(-1, "not ok 8 - getsockopt() after listen() but before "
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"setsockopt() failed with %d (%s)", errno, strerror(errno));
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printf("ok 8 - getsockopt\n");
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/*
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* Step 8: After listen(). This call to setsockopt() should succeed.
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*/
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bzero(&afa, sizeof(afa));
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strncpy(afa.af_name, ACCF_NAME, sizeof(afa.af_name));
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ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));
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if (ret != 0)
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errx(-1, "not ok 9 - setsockopt() after listen() failed with %d "
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"(%s)", errno, strerror(errno));
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printf("ok 9 - setsockopt\n");
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/*
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* Step 9: After setsockopt(). Should succeed and identify
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* ACCF_NAME.
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*/
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bzero(&afa, sizeof(afa));
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret != 0)
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errx(-1, "not ok 10 - getsockopt() after listen() setsockopt() "
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"failed with %d (%s)", errno, strerror(errno));
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if (len != sizeof(afa))
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errx(-1, "not ok 10 - getsockopt() after setsockopet() after "
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"listen() returned wrong size (got %d expected %zd)", len,
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sizeof(afa));
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if (strcmp(afa.af_name, ACCF_NAME) != 0)
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errx(-1, "not ok 10 - getsockopt() after setsockopt() after "
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"listen() mismatch (got %s expected %s)", afa.af_name,
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ACCF_NAME);
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printf("ok 10 - getsockopt\n");
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/*
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* Step 10: Set listening socket to non blocking mode. Open
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* connection to our listening socket and try to accept. Should
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* no succeed. Write a byte of data and try again. Should accept.
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*/
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i = fcntl(lso, F_GETFL);
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if (i < 0)
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errx(-1, "not ok 11 - ioctl(F_GETFL): %s", strerror(errno));
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i |= O_NONBLOCK;
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if (fcntl(lso, F_SETFL, i) != 0)
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errx(-1, "not ok 11 - ioctl(F_SETFL): %s", strerror(errno));
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so = socket(PF_INET, SOCK_STREAM, 0);
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if (so == -1)
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errx(-1, "not ok 11 - socket: %s", strerror(errno));
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if (connect(so, (struct sockaddr *)&sin, sizeof(sin)) < 0)
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errx(-1, "not ok 11 - connect %s", strerror(errno));
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if (accept(lso, NULL, 0) != -1 && errno != EWOULDBLOCK)
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errx(-1, "not ok 11 - accept #1 %s", strerror(errno));
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if (write(so, "0", 1) != 1)
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errx(-1, "not ok 11 - write %s", strerror(errno));
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/*
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* XXXGL: ugly, but we need to make sure that our write reaches
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* remote side of the socket.
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*/
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usleep(10000);
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if (accept(lso, NULL, 0) < 1)
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errx(-1, "not ok 11 - accept #2 %s", strerror(errno));
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printf("ok 11 - accept\n");
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#if 1
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/*
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* XXXGL: this doesn't belong to the test itself, but is known
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* to examine rarely examined paths in the kernel. Intentionally
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* leave a socket on the incomplete queue, before the program
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* exits.
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*/
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so = socket(PF_INET, SOCK_STREAM, 0);
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if (so == -1)
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errx(-1, "not ok 12 - socket: %s", strerror(errno));
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if (connect(so, (struct sockaddr *)&sin, sizeof(sin)) < 0)
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errx(-1, "not ok 12 - connect %s", strerror(errno));
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#endif
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/*
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* Step 11: Remove accept filter. After removing the accept filter
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* getsockopt() should fail with EINVAL.
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*/
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ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0);
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if (ret != 0)
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errx(-1, "not ok 12 - setsockopt() after listen() "
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"failed with %d (%s)", errno, strerror(errno));
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bzero(&afa, sizeof(afa));
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len = sizeof(afa);
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ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len);
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if (ret == 0)
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errx(-1, "not ok 12 - getsockopt() after removing "
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"the accept filter returns valid accept filter %s",
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afa.af_name);
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if (errno != EINVAL)
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errx(-1, "not ok 12 - getsockopt() after removing the accept"
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"filter failed with %d (%s)", errno, strerror(errno));
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printf("ok 12 - setsockopt\n");
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close(lso);
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return (0);
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}
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