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tests: check decoding of rtnetlink link messages

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* tests/netlink_route.c: Include <linux/if_arp.h>.
(TEST_NL_ROUTE): New macro.
(test_rtnl_link): New function.
(main): Use it.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
This commit is contained in:
JingPiao Chen 2017-06-19 15:02:59 +08:00 committed by Dmitry V. Levin
parent b955f683f4
commit fc15305b9f
1 changed files with 57 additions and 0 deletions
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57
tests/netlink_route.c
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@ -32,8 +32,43 @@
#include <unistd.h>
#include <sys/socket.h>
#include "test_netlink.h"
#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#ifdef HAVE_IF_INDEXTONAME
/* <linux/if.h> used to conflict with <net/if.h> */
extern unsigned int if_nametoindex(const char *);
# define IFINDEX_LO (if_nametoindex("lo"))
#else
# define IFINDEX_LO 1
#endif
#define TEST_NL_ROUTE(fd_, nlh0_, type_, obj_, print_family_, ...) \
do { \
/* family and string */ \
TEST_NETLINK((fd_), (nlh0_), \
type_, NLM_F_REQUEST, \
sizeof(obj_) - 1, \
&(obj_), sizeof(obj_) - 1, \
(print_family_); \
printf(", ...}")); \
\
/* sizeof(obj_) */ \
TEST_NETLINK((fd_), (nlh0_), \
type_, NLM_F_REQUEST, \
sizeof(obj_), &(obj_), sizeof(obj_), \
(print_family_); \
__VA_ARGS__); \
\
/* short read of sizeof(obj_) */ \
TEST_NETLINK((fd_), (nlh0_), \
type_, NLM_F_REQUEST, \
sizeof(obj_), &(obj_), sizeof(obj_) - 1, \
(print_family_); \
printf(", %p}", \
NLMSG_DATA(TEST_NETLINK_nlh) + 1)); \
} while (0)
static void
test_nlmsg_type(const int fd)
{
@ -143,6 +178,27 @@ test_rtnl_unspec(const int fd)
", \"\\x31\\x32\\x33\\x34\"}", family));
}
static void
test_rtnl_link(const int fd)
{
void *const nlh0 = tail_alloc(NLMSG_HDRLEN);
const struct ifinfomsg ifinfo = {
.ifi_family = AF_UNIX,
.ifi_type = ARPHRD_LOOPBACK,
.ifi_index = IFINDEX_LO,
.ifi_flags = IFF_UP,
.ifi_change = 0xfabcdeba
};
TEST_NL_ROUTE(fd, nlh0, RTM_GETLINK, ifinfo,
printf("{ifi_family=AF_UNIX"),
printf(", ifi_type=ARPHRD_LOOPBACK"
", ifi_index=if_nametoindex(\"lo\")"
", ifi_flags=IFF_UP");
PRINT_FIELD_X(", ", ifinfo, ifi_change);
printf("}"));
}
int main(void)
{
skip_if_unavailable("/proc/self/fd/");
@ -152,6 +208,7 @@ int main(void)
test_nlmsg_type(fd);
test_nlmsg_flags(fd);
test_rtnl_unspec(fd);
test_rtnl_link(fd);
printf("+++ exited with 0 +++\n");