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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 <arpa/inet.h>
#include "test_nlattr.h"
#include <linux/if_addr.h>
#include <linux/rtnetlink.h>
#define SET_IFA_FAMILY(af) \
do { \
ifa_family = af; \
ifa_family_str = #af; \
} \
while (0)
uint8_t ifa_family;
const char *ifa_family_str;
static void
init_ifaddrmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_len,
.nlmsg_type = RTM_GETADDR,
.nlmsg_flags = NLM_F_DUMP
);
struct ifaddrmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct ifaddrmsg, msg,
.ifa_family = ifa_family,
.ifa_flags = IFA_F_SECONDARY,
.ifa_scope = RT_SCOPE_UNIVERSE,
.ifa_index = ifindex_lo()
);
}
static void
print_ifaddrmsg(const unsigned int msg_len)
{
printf("{nlmsg_len=%u, nlmsg_type=RTM_GETADDR, nlmsg_flags=NLM_F_DUMP"
", nlmsg_seq=0, nlmsg_pid=0}, {ifa_family=%s"
", ifa_prefixlen=0"
", ifa_flags=IFA_F_SECONDARY"
", ifa_scope=RT_SCOPE_UNIVERSE"
", ifa_index=" IFINDEX_LO_STR "}",
msg_len, ifa_family_str);
}
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
static const char address4[] = "12.34.56.78";
static const char address6[] = "12:34:56:78:90:ab:cd:ef";
static const struct ifa_cacheinfo ci = {
.ifa_prefered = 0xabcdefac,
.ifa_valid = 0xbcdadbca,
.cstamp = 0xcdabedba,
.tstamp = 0xdebabdac
};
struct in_addr a4;
struct in6_addr a6;
const uint32_t ifa_flags = IFA_F_SECONDARY | IFA_F_PERMANENT;
const int fd = create_nl_socket(NETLINK_ROUTE);
const unsigned int hdrlen = sizeof(struct ifaddrmsg);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
NLA_HDRLEN + MAX(sizeof(ci), sizeof(a6)));
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
SET_IFA_FAMILY(AF_UNSPEC);
const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
char nla_type_str[256];
sprintf(nla_type_str, "%#x /* IFA_??? */", nla_type);
TEST_NLATTR_(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
nla_type, nla_type_str,
4, pattern, 4,
print_quoted_hex(pattern, 4));
TEST_NLATTR(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_ADDRESS, 4, pattern, 4,
print_quoted_hex(pattern, 4));
SET_IFA_FAMILY(AF_INET);
if (!inet_pton(AF_INET, address4, &a4))
perror_msg_and_skip("inet_pton");
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_ADDRESS, pattern, a4,
printf("inet_addr(\"%s\")", address4));
SET_IFA_FAMILY(AF_INET6);
if (!inet_pton(AF_INET6, address6, &a6))
perror_msg_and_skip("inet_pton");
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_ADDRESS, pattern, a6,
printf("inet_pton(AF_INET6, \"%s\")", address6));
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_CACHEINFO, pattern, ci,
printf("{");
PRINT_FIELD_U(ci, ifa_prefered);
printf(", ");
PRINT_FIELD_U(ci, ifa_valid);
printf(", ");
PRINT_FIELD_U(ci, cstamp);
printf(", ");
PRINT_FIELD_U(ci, tstamp);
printf("}"));
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_FLAGS, pattern, ifa_flags,
printf("IFA_F_SECONDARY|IFA_F_PERMANENT"));
puts("+++ exited with 0 +++");
return 0;
}
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