Dmitry V. Levin
c95b9cb23b
The attribute of FRA_TABLE is not just a 32-bit integer, some constants have well-known symbolic names like RT_TABLE_DEFAULT. * rtnl_rule.c (fib_rule_hdr_nla_decoders) <FRA_TABLE>: Use decode_nla_rt_class. * tests/nlattr_fib_rule_hdr.c (FRA_TABLE): New macro. (main): Check FRA_TABLE decoding.
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
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* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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* Copyright (c) 2017 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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#ifdef HAVE_LINUX_FIB_RULES_H
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# include <stdio.h>
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# include <inttypes.h>
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# include "test_nlattr.h"
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# include <linux/fib_rules.h>
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# include <linux/ip.h>
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# include <linux/rtnetlink.h>
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#define FRA_TUN_ID 12
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#define FRA_TABLE 15
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#define FRA_UID_RANGE 20
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static void
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init_rtmsg(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 = RTM_GETRULE,
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.nlmsg_flags = NLM_F_DUMP
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);
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struct rtmsg *const msg = NLMSG_DATA(nlh);
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SET_STRUCT(struct rtmsg, msg,
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.rtm_family = AF_UNIX,
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.rtm_tos = IPTOS_LOWDELAY,
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.rtm_table = RT_TABLE_UNSPEC,
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.rtm_type = FR_ACT_TO_TBL,
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.rtm_flags = FIB_RULE_INVERT
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);
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}
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static void
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print_rtmsg(const unsigned int msg_len)
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{
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printf("{len=%u, type=RTM_GETRULE, flags=NLM_F_DUMP"
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", seq=0, pid=0}, {family=AF_UNIX"
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", dst_len=0, src_len=0"
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", tos=IPTOS_LOWDELAY"
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", table=RT_TABLE_UNSPEC"
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", action=FR_ACT_TO_TBL"
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", flags=FIB_RULE_INVERT}",
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msg_len);
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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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const int fd = create_nl_socket(NETLINK_ROUTE);
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const unsigned int hdrlen = sizeof(struct rtmsg);
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void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
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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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const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
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char nla_type_str[256];
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sprintf(nla_type_str, "%#x /* FRA_??? */", nla_type);
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TEST_NLATTR_(fd, nlh0, hdrlen,
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init_rtmsg, print_rtmsg,
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nla_type, nla_type_str,
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4, pattern, 4,
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print_quoted_hex(pattern, 4));
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TEST_NLATTR(fd, nlh0, hdrlen,
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init_rtmsg, print_rtmsg,
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FRA_DST, 4, pattern, 4,
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print_quoted_hex(pattern, 4));
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const uint32_t table_id = RT_TABLE_DEFAULT;
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_rtmsg, print_rtmsg,
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FRA_TABLE, pattern, table_id,
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printf("RT_TABLE_DEFAULT"));
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#ifdef HAVE_STRUCT_FIB_RULE_UID_RANGE
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static const struct fib_rule_uid_range range = {
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.start = 0xabcdedad,
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.end = 0xbcdeadba
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};
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_rtmsg, print_rtmsg,
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FRA_UID_RANGE, pattern, range,
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PRINT_FIELD_U("{", range, start);
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PRINT_FIELD_U(", ", range, end);
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printf("}"));
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#endif
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#if defined HAVE_BE64TOH || defined be64toh
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const uint64_t tun_id = 0xabcdcdbeedabadef;
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TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
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init_rtmsg, print_rtmsg,
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FRA_TUN_ID, pattern, tun_id,
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printf("htobe64(%" PRIu64 ")", be64toh(tun_id)));
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#endif
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("HAVE_LINUX_FIB_RULES_H")
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#endif
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