226 lines
7.3 KiB
C
226 lines
7.3 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 <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/sock_diag.h>
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static const char * const sk_meminfo_strs[] = {
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"SK_MEMINFO_RMEM_ALLOC",
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"SK_MEMINFO_RCVBUF",
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"SK_MEMINFO_WMEM_ALLOC",
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"SK_MEMINFO_SNDBUF",
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"SK_MEMINFO_FWD_ALLOC",
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"SK_MEMINFO_WMEM_QUEUED",
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"SK_MEMINFO_OPTMEM",
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"SK_MEMINFO_BACKLOG",
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"SK_MEMINFO_DROPS",
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};
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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_msg(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_DUMP
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);
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struct inet_diag_msg *const msg = NLMSG_DATA(nlh);
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SET_STRUCT(struct inet_diag_msg, msg,
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.idiag_family = AF_INET,
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.idiag_state = TCP_LISTEN,
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.id.idiag_if = ifindex_lo()
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);
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if (!inet_pton(AF_INET, address, msg->id.idiag_src) ||
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!inet_pton(AF_INET, address, msg->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_msg(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_DUMP, seq=0, pid=0}, {idiag_family=AF_INET"
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", idiag_state=TCP_LISTEN, idiag_timer=0, idiag_retrans=0"
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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_expires=0, idiag_rqueue=0, idiag_wqueue=0"
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", idiag_uid=0, idiag_inode=0}",
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msg_len, address, address);
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}
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static void
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print_uint(const unsigned int *p, size_t i)
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{
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if (i >= ARRAY_SIZE(sk_meminfo_strs))
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printf("[%zu /* SK_MEMINFO_??? */", i);
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else
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printf("[%s", sk_meminfo_strs[i]);
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printf("] = %u", *p);
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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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static const struct inet_diag_meminfo minfo = {
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.idiag_rmem = 0xfadcacdb,
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.idiag_wmem = 0xbdabcada,
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.idiag_fmem = 0xbadbfafb,
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.idiag_tmem = 0xfdacdadf
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};
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static const struct tcpvegas_info vegas = {
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.tcpv_enabled = 0xfadcacdb,
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.tcpv_rttcnt = 0xbdabcada,
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.tcpv_rtt = 0xbadbfafb,
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.tcpv_minrtt = 0xfdacdadf
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};
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static const struct tcp_dctcp_info dctcp = {
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.dctcp_enabled = 0xfdac,
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.dctcp_ce_state = 0xfadc,
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.dctcp_alpha = 0xbdabcada,
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.dctcp_ab_ecn = 0xbadbfafb,
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.dctcp_ab_tot = 0xfdacdadf
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};
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static const struct tcp_bbr_info bbr = {
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.bbr_bw_lo = 0xfdacdadf,
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.bbr_bw_hi = 0xfadcacdb,
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.bbr_min_rtt = 0xbdabcada,
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.bbr_pacing_gain = 0xbadbfafb,
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.bbr_cwnd_gain = 0xfdacdadf
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};
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static const uint32_t mem[] = { 0xaffacbad, 0xffadbcab };
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static uint32_t bigmem[SK_MEMINFO_VARS + 1];
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static const uint32_t mark = 0xabdfadca;
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static const uint8_t shutdown = 0xcd;
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const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
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const unsigned int hdrlen = sizeof(struct inet_diag_msg);
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void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
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NLA_HDRLEN +
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MAX(sizeof(bigmem), DEFAULT_STRLEN));
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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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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_MEMINFO, pattern, minfo,
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PRINT_FIELD_U("{", minfo, idiag_rmem);
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PRINT_FIELD_U(", ", minfo, idiag_wmem);
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PRINT_FIELD_U(", ", minfo, idiag_fmem);
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PRINT_FIELD_U(", ", minfo, idiag_tmem);
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printf("}"));
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_VEGASINFO, pattern, vegas,
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PRINT_FIELD_U("{", vegas, tcpv_enabled);
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PRINT_FIELD_U(", ", vegas, tcpv_rttcnt);
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PRINT_FIELD_U(", ", vegas, tcpv_rtt);
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PRINT_FIELD_U(", ", vegas, tcpv_minrtt);
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printf("}"));
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_DCTCPINFO, pattern, dctcp,
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PRINT_FIELD_U("{", dctcp, dctcp_enabled);
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PRINT_FIELD_U(", ", dctcp, dctcp_ce_state);
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PRINT_FIELD_U(", ", dctcp, dctcp_alpha);
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PRINT_FIELD_U(", ", dctcp, dctcp_ab_ecn);
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PRINT_FIELD_U(", ", dctcp, dctcp_ab_tot);
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printf("}"));
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_BBRINFO, pattern, bbr,
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PRINT_FIELD_X("{", bbr, bbr_bw_lo);
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PRINT_FIELD_X(", ", bbr, bbr_bw_hi);
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PRINT_FIELD_U(", ", bbr, bbr_min_rtt);
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PRINT_FIELD_U(", ", bbr, bbr_pacing_gain);
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PRINT_FIELD_U(", ", bbr, bbr_cwnd_gain);
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printf("}"));
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TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_SKMEMINFO, pattern, mem, print_uint);
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memcpy(bigmem, pattern, sizeof(bigmem));
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TEST_NLATTR_ARRAY(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_SKMEMINFO, pattern, bigmem, print_uint);
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_MARK, pattern, mark,
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printf("%u", mark));
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg,
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INET_DIAG_CLASS_ID, pattern, mark,
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printf("%u", mark));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_SHUTDOWN,
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sizeof(shutdown), &shutdown, sizeof(shutdown),
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printf("%u", shutdown));
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char *const str = tail_alloc(DEFAULT_STRLEN);
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fill_memory_ex(str, DEFAULT_STRLEN, '0', 10);
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
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DEFAULT_STRLEN, str, DEFAULT_STRLEN,
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printf("\"%.*s\"...", DEFAULT_STRLEN, str));
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str[DEFAULT_STRLEN - 1] = '\0';
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_inet_diag_msg, print_inet_diag_msg, INET_DIAG_CONG,
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DEFAULT_STRLEN, str, DEFAULT_STRLEN,
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printf("\"%s\"", str));
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puts("+++ exited with 0 +++");
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return 0;
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}
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