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/*
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* Copyright (c) 2017-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include <inttypes.h>
#include "test_nlattr.h"
#include <linux/fib_rules.h>
#include <linux/in.h>
#include <linux/ip.h>
static void
init_rtmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_len,
.nlmsg_type = RTM_GETRULE,
.nlmsg_flags = NLM_F_DUMP
);
struct rtmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct rtmsg, msg,
.rtm_family = AF_UNIX,
.rtm_tos = IPTOS_LOWDELAY,
.rtm_table = RT_TABLE_UNSPEC,
.rtm_type = FR_ACT_TO_TBL,
.rtm_flags = FIB_RULE_INVERT
);
}
static void
print_rtmsg(const unsigned int msg_len)
{
printf("{nlmsg_len=%u, nlmsg_type=RTM_GETRULE, nlmsg_flags=NLM_F_DUMP"
", nlmsg_seq=0, nlmsg_pid=0}, {family=AF_UNIX"
", dst_len=0, src_len=0"
", tos=IPTOS_LOWDELAY"
", table=RT_TABLE_UNSPEC"
", action=FR_ACT_TO_TBL"
", flags=FIB_RULE_INVERT}",
msg_len);
}
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const int fd = create_nl_socket(NETLINK_ROUTE);
const unsigned int hdrlen = sizeof(struct rtmsg);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 8);
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
char nla_type_str[256];
sprintf(nla_type_str, "%#x /* FRA_??? */", nla_type);
TEST_NLATTR_(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
nla_type, nla_type_str,
4, pattern, 4,
print_quoted_hex(pattern, 4));
TEST_NLATTR(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_DST, 4, pattern, 4,
print_quoted_hex(pattern, 4));
const uint32_t table_id = RT_TABLE_DEFAULT;
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_TABLE, pattern, table_id,
printf("RT_TABLE_DEFAULT"));
static const struct fib_rule_uid_range range = {
.start = 0xabcdedad,
.end = 0xbcdeadba
};
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_UID_RANGE, pattern, range,
printf("{");
PRINT_FIELD_U(range, start);
printf(", ");
PRINT_FIELD_U(range, end);
printf("}"));
#if defined HAVE_BE64TOH || defined be64toh
const uint64_t tun_id = 0xabcdcdbeedabadef;
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_TUN_ID, pattern, tun_id,
printf("htobe64(%" PRIu64 ")", be64toh(tun_id)));
#endif
uint8_t proto;
static const struct {
uint8_t arg;
const char *str;
} proto_args[] = {
{ ARG_STR(RTPROT_UNSPEC) },
{ 5, "0x5 /* RTPROT_??? */" },
{ 17, "RTPROT_MROUTED" },
{ 42, "RTPROT_BABEL" },
{ 43, "0x2b /* RTPROT_??? */" },
{ ARG_STR(0xde) " /* RTPROT_??? */" },
};
for (unsigned i = 0; i < ARRAY_SIZE(proto_args); i++) {
proto = proto_args[i].arg;
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_PROTOCOL, pattern, proto,
printf("%s", proto_args[i].str));
}
static const struct {
uint8_t arg;
const char *str;
} ipproto_args[] = {
{ ARG_STR(IPPROTO_TCP) },
{ 254, "0xfe /* IPPROTO_??? */" },
{ ARG_STR(IPPROTO_RAW) },
};
for (unsigned i = 0; i < ARRAY_SIZE(ipproto_args); i++) {
proto = ipproto_args[i].arg;
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_IP_PROTO, pattern, proto,
printf("%s", ipproto_args[i].str));
}
static const struct fib_rule_port_range prange = {
.start = 0xabcd,
.end = 0xfeed,
};
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_SPORT_RANGE, pattern, prange,
printf("{");
PRINT_FIELD_U(prange, start);
printf(", ");
PRINT_FIELD_U(prange, end);
printf("}"));
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_rtmsg, print_rtmsg,
FRA_DPORT_RANGE, pattern, prange,
printf("{");
PRINT_FIELD_U(prange, start);
printf(", ");
PRINT_FIELD_U(prange, end);
printf("}"));
puts("+++ exited with 0 +++");
return 0;
}
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