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tests: check decoding of ifaddrmsg netlink attributes

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* tests/nlattr_ifaddrmsg.c: Include <arpa/inet.h>.
(IFA_FLAGS, SET_IFA_FAMILY): New macros.
(init_ifaddrmsg): Set ifaddrmsg.ifa_family field from ifa_family.
(print_ifaddrmsg): Print ifaddrmsg.ifa_family field using ifa_family_str.
(main): Check decoding of IFA_ADDRESS, IFA_CACHEINFO, and IFA_FLAGS.
This commit is contained in:
JingPiao Chen 2017-08-22 14:45:49 +08:00 committed by Dmitry V. Levin
parent f076c78667
commit bc9fd5ffb9
1 changed files with 67 additions and 3 deletions
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70
tests/nlattr_ifaddrmsg.c
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@ -29,12 +29,25 @@
#include "tests.h"
#include <stdio.h>
#include <arpa/inet.h>
#include "test_nlattr.h"
#ifdef HAVE_LINUX_IF_ADDR_H
# include <linux/if_addr.h>
#endif
#include <linux/rtnetlink.h>
#define IFA_FLAGS 8
#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)
{
@ -46,7 +59,7 @@ init_ifaddrmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
struct ifaddrmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct ifaddrmsg, msg,
.ifa_family = AF_UNIX,
.ifa_family = ifa_family,
.ifa_flags = IFA_F_SECONDARY,
.ifa_scope = RT_SCOPE_UNIVERSE,
.ifa_index = ifindex_lo()
@ -57,12 +70,12 @@ static void
print_ifaddrmsg(const unsigned int msg_len)
{
printf("{len=%u, type=RTM_GETADDR, flags=NLM_F_DUMP"
", seq=0, pid=0}, {ifa_family=AF_UNIX"
", seq=0, 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);
msg_len, ifa_family_str);
}
int
@ -77,6 +90,7 @@ main(void)
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);
@ -86,6 +100,56 @@ main(void)
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);
static const char address4[] = "12.34.56.78";
struct in_addr a4;
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("%s", address4));
SET_IFA_FAMILY(AF_INET6);
static const char address6[] = "12:34:56:78:90:ab:cd:ef";
struct in6_addr a6;
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("%s", address6));
static const struct ifa_cacheinfo ci = {
.ifa_prefered = 0xabcdefac,
.ifa_valid = 0xbcdadbca,
.cstamp = 0xcdabedba,
.tstamp = 0xdebabdac
};
TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_ifaddrmsg, print_ifaddrmsg,
IFA_CACHEINFO, pattern, ci,
PRINT_FIELD_U("{", ci, ifa_prefered);
PRINT_FIELD_U(", ", ci, ifa_valid);
PRINT_FIELD_U(", ", ci, cstamp);
PRINT_FIELD_U(", ", ci, tstamp);
printf("}"));
const uint32_t ifa_flags = IFA_F_SECONDARY | IFA_F_PERMANENT;
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;
}