106 lines
3.6 KiB
C
106 lines
3.6 KiB
C
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/*
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* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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* Copyright (c) 2017-2018 The strace developers.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 "tests.h"
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#include <stdio.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netinet/tcp.h>
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#include "test_nlattr.h"
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#include <linux/inet_diag.h>
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#include <linux/rtnetlink.h>
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#include <linux/sock_diag.h>
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static const char address[] = "10.11.12.13";
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static void
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init_inet_diag_req(struct nlmsghdr *const nlh, const unsigned int msg_len)
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{
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SET_STRUCT(struct nlmsghdr, nlh,
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.nlmsg_len = msg_len,
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.nlmsg_type = TCPDIAG_GETSOCK,
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.nlmsg_flags = NLM_F_REQUEST
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);
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struct inet_diag_req *const req = NLMSG_DATA(nlh);
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SET_STRUCT(struct inet_diag_req, req,
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.idiag_family = AF_INET,
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.idiag_ext = 1 << (INET_DIAG_TOS - 1),
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.idiag_states = 1 << TCP_LAST_ACK,
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.id.idiag_if = ifindex_lo()
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);
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if (!inet_pton(AF_INET, address, req->id.idiag_src) ||
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!inet_pton(AF_INET, address, req->id.idiag_dst))
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perror_msg_and_skip("inet_pton");
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}
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static void
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print_inet_diag_req(const unsigned int msg_len)
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{
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printf("{len=%u, type=TCPDIAG_GETSOCK, flags=NLM_F_REQUEST"
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", seq=0, pid=0}, {idiag_family=AF_INET"
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", idiag_src_len=0, idiag_dst_len=0"
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", idiag_ext=1<<(INET_DIAG_TOS-1)"
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", id={idiag_sport=htons(0), idiag_dport=htons(0)"
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", idiag_src=inet_addr(\"%s\")"
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", idiag_dst=inet_addr(\"%s\")"
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", idiag_if=" IFINDEX_LO_STR
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", idiag_cookie=[0, 0]}"
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", idiag_states=1<<TCP_LAST_ACK, idiag_dbs=0}",
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msg_len, address, address);
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}
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int
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main(void)
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{
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skip_if_unavailable("/proc/self/fd/");
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int fd = create_nl_socket(NETLINK_SOCK_DIAG);
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const unsigned int hdrlen = sizeof(struct inet_diag_req);
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void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 4);
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static char pattern[4096];
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fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
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char nla_type_str[256];
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sprintf(nla_type_str, "%#x /* INET_DIAG_REQ_??? */",
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INET_DIAG_REQ_BYTECODE + 1);
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TEST_NLATTR_(fd, nlh0, hdrlen,
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init_inet_diag_req, print_inet_diag_req,
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INET_DIAG_REQ_BYTECODE + 1, nla_type_str,
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4, pattern, 4,
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print_quoted_hex(pattern, 4));
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puts("+++ exited with 0 +++");
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return 0;
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}
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