428 lines
13 KiB
C
428 lines
13 KiB
C
/*
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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 const unsigned int hdrlen = sizeof(struct inet_diag_req_v2);
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static void *nlh0;
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static char pattern[4096];
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static void
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init_inet_diag_req_v2(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 = SOCK_DIAG_BY_FAMILY,
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.nlmsg_flags = NLM_F_REQUEST
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);
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struct inet_diag_req_v2 *const req = NLMSG_DATA(nlh);
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SET_STRUCT(struct inet_diag_req_v2, req,
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.sdiag_family = AF_INET,
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.idiag_ext = 1 << (INET_DIAG_CONG - 1),
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.sdiag_protocol = IPPROTO_TCP,
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.idiag_states = 1 << TCP_CLOSE,
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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_v2(const unsigned int msg_len)
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{
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printf("{len=%u, type=SOCK_DIAG_BY_FAMILY"
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", flags=NLM_F_REQUEST, seq=0, pid=0}"
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", {sdiag_family=AF_INET, sdiag_protocol=IPPROTO_TCP"
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", idiag_ext=1<<(INET_DIAG_CONG-1)"
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", idiag_states=1<<TCP_CLOSE"
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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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msg_len, address, address);
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}
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static void
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test_inet_diag_bc_op(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_S_COND,
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.yes = 0xaf,
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.no = 0xafcd
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};
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE, pattern, op,
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printf("{code=INET_DIAG_BC_S_COND");
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PRINT_FIELD_U(", ", op, yes);
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PRINT_FIELD_U(", ", op, no);
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printf("}"));
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}
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static void
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print_inet_diag_bc_op(const char *const code)
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{
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printf("{{code=%s, yes=0, no=0}, ", code);
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}
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static void
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test_inet_diag_bc_s_cond(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_S_COND,
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};
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static const struct inet_diag_hostcond cond = {
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.family = AF_UNSPEC,
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.prefix_len = 0xad,
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.port = 0xadfa
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};
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char buf[sizeof(op) + sizeof(cond)];
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memcpy(buf, &op, sizeof(op));
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const unsigned int plen = sizeof(cond) - 1 > DEFAULT_STRLEN ?
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sizeof(op) + DEFAULT_STRLEN : sizeof(buf) - 1;
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memcpy(buf + sizeof(op), &pattern, sizeof(cond));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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plen, buf, plen,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
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printf("}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));
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memcpy(buf + sizeof(op), &cond, sizeof(cond));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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printf("{family=AF_UNSPEC");
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PRINT_FIELD_U(", ", cond, prefix_len);
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PRINT_FIELD_U(", ", cond, port);
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printf("}}"));
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}
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static void
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print_inet_diag_hostcond(const char *const family)
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{
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printf("{family=%s, prefix_len=0, port=0, ", family);
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}
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static void
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test_in_addr(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_S_COND,
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};
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static const struct inet_diag_hostcond cond = {
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.family = AF_INET,
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};
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struct in_addr addr;
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if (!inet_pton(AF_INET, address, &addr))
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perror_msg_and_skip("inet_pton");
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char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
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memcpy(buf, &op, sizeof(op));
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memcpy(buf + sizeof(op), &cond, sizeof(cond));
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const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
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sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
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memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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plen, buf, plen,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET");
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printf("addr=");
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print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
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printf("}}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET");
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printf("addr=%p}}",
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RTA_DATA(TEST_NLATTR_nla)
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+ sizeof(op) + sizeof(cond)));
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memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET");
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printf("addr=inet_addr(\"%s\")}}", address));
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}
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static void
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test_in6_addr(const int fd)
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{
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const char address6[] = "12:34:56:78:90:ab:cd:ef";
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_S_COND,
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};
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static const struct inet_diag_hostcond cond = {
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.family = AF_INET6,
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};
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struct in6_addr addr;
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if (!inet_pton(AF_INET6, address6, &addr))
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perror_msg_and_skip("inet_pton");
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char buf[sizeof(op) + sizeof(cond) + sizeof(addr)];
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memcpy(buf, &op, sizeof(op));
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memcpy(buf + sizeof(op), &cond, sizeof(cond));
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const unsigned int plen = sizeof(addr) - 1 > DEFAULT_STRLEN ?
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sizeof(cond) + sizeof(cond) + DEFAULT_STRLEN : sizeof(buf) - 1;
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memcpy(buf + sizeof(op) + sizeof(cond), &pattern, sizeof(addr));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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plen, buf, plen,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET6");
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printf("addr=");
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print_quoted_hex(pattern, plen - sizeof(op) - sizeof(cond));
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printf("}}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET6");
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printf("addr=%p}}",
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RTA_DATA(TEST_NLATTR_nla)
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+ sizeof(op) + sizeof(cond)));
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memcpy(buf + sizeof(op) + sizeof(cond), &addr, sizeof(addr));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_S_COND");
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print_inet_diag_hostcond("AF_INET6");
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printf("inet_pton(AF_INET6, \"%s\", &addr)}}", address6));
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}
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static void
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test_inet_diag_bc_dev_cond(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_DEV_COND,
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};
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const uint32_t ifindex = ifindex_lo();
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char buf[sizeof(op) + sizeof(ifindex)];
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memcpy(buf, &op, sizeof(op));
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memcpy(buf + sizeof(op), pattern, sizeof(ifindex));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf) - 1, buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
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print_quoted_hex(pattern, sizeof(ifindex) - 1);
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printf("}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
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printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));
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memcpy(buf + sizeof(op), &ifindex, sizeof(ifindex));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_DEV_COND");
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printf(IFINDEX_LO_STR "}"));
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}
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static void
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test_inet_diag_bc_s_le(const int fd)
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{
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static const struct inet_diag_bc_op op[] = {
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{
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.code = INET_DIAG_BC_S_LE,
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},
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{
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.code = INET_DIAG_BC_DEV_COND,
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.yes = 0xaf,
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.no = 0xafcd
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}
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};
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char buf[sizeof(op)];
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memcpy(buf, op, sizeof(op[0]));
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memcpy(buf + sizeof(op[0]), pattern, sizeof(op[1]));
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const unsigned int plen = sizeof(op[1]) - 1 > DEFAULT_STRLEN ?
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sizeof(op[0]) + DEFAULT_STRLEN : sizeof(buf) - 1;
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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plen, buf, plen,
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print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
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print_quoted_hex(buf + sizeof(op[0]), plen - sizeof(op[0]));
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printf("}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
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printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op[0])));
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memcpy(buf + sizeof(op[0]), &op[1], sizeof(op[1]));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_S_LE");
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printf("{code=INET_DIAG_BC_DEV_COND");
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PRINT_FIELD_U(", ", op[1], yes);
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PRINT_FIELD_U(", ", op[1], no);
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printf("}}"));
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};
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static void
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test_inet_diag_bc_mark_cond(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_MARK_COND,
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};
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static const struct inet_diag_markcond markcond = {
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.mark = 0xafbcafcd,
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.mask = 0xbafaacda
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};
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char buf[sizeof(op) + sizeof(markcond)];
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memcpy(buf, &op, sizeof(op));
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memcpy(buf + sizeof(op), pattern, sizeof(markcond));
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const unsigned int plen = sizeof(markcond) - 1 > DEFAULT_STRLEN ?
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sizeof(markcond) + DEFAULT_STRLEN : sizeof(buf) - 1;
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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plen, buf, plen,
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print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
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print_quoted_hex(buf + sizeof(op), plen - sizeof(op));
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printf("}"));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf) - 1,
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print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
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printf("%p}", RTA_DATA(TEST_NLATTR_nla) + sizeof(op)));
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memcpy(buf + sizeof(op), &markcond, sizeof(markcond));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_MARK_COND");
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PRINT_FIELD_U("{", markcond, mark);
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PRINT_FIELD_U(", ", markcond, mask);
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printf("}}"));
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}
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static void
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test_inet_diag_bc_nop(const int fd)
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{
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static const struct inet_diag_bc_op op = {
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.code = INET_DIAG_BC_AUTO,
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};
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char buf[sizeof(op) + 4];
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memcpy(buf, &op, sizeof(op));
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memcpy(buf + sizeof(op), pattern, 4);
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_req_v2, print_inet_diag_req_v2,
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INET_DIAG_REQ_BYTECODE,
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sizeof(buf), buf, sizeof(buf),
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print_inet_diag_bc_op("INET_DIAG_BC_AUTO");
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print_quoted_hex(buf + sizeof(op),
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sizeof(buf) - sizeof(op));
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printf("}"));
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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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nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN +
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sizeof(struct inet_diag_bc_op) +
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sizeof(struct inet_diag_hostcond) +
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sizeof(struct in6_addr) + DEFAULT_STRLEN);
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fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
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test_inet_diag_bc_op(fd);
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test_inet_diag_bc_s_cond(fd);
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test_in_addr(fd);
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test_in6_addr(fd);
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test_inet_diag_bc_dev_cond(fd);
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test_inet_diag_bc_s_le(fd);
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test_inet_diag_bc_mark_cond(fd);
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test_inet_diag_bc_nop(fd);
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printf("+++ exited with 0 +++\n");
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return 0;
|
|
}
|