[PATCH v2 2/2] tests: check decoding of ifinfomsg netlink attributes
JingPiao Chen
chenjingpiao at gmail.com
Sat Aug 19 01:50:11 UTC 2017
* gen_tests.in (nlattr_ifinfomsg): Replace netlink_sock_diag.test
with netlink_sock_diag-v.sh, using verbose to check decoding of array.
* tests/nlattr_ifinfomsg.c: Include <stddef.h>, <arpa/inet.h>,
<linux/if_link.h> and <linux/netdevice.h>.
(SET_IFI_TYPE, IFLA_PHYS_PORT_ID, IFLA_LINK_NETNSID): New macros.
(init_ifinfomsg): Set ifinfomsg.ifi_type field.
(print_ifinfomsg): Print ifinfomsg.ifi_type field use %s format.
(main): Check decoding of IFLA_LINK_NETNSID, IFLA_STATS,
IFLA_MAP, IFLA_STATS64, IFLA_PHYS_PORT_ID and IFLA_ADDRESS.
---
tests/gen_tests.in | 2 +-
tests/nlattr_ifinfomsg.c | 254 ++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 252 insertions(+), 4 deletions(-)
diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index ba156c3..e7c4620 100644
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -203,7 +203,7 @@ nlattr_dcbmsg +netlink_sock_diag.test
nlattr_fib_rule_hdr +netlink_sock_diag.test
nlattr_ifaddrlblmsg +netlink_sock_diag.test
nlattr_ifaddrmsg +netlink_sock_diag.test
-nlattr_ifinfomsg +netlink_sock_diag.test
+nlattr_ifinfomsg +netlink_sock_diag-v.sh
nlattr_inet_diag_msg +netlink_sock_diag.test
nlattr_inet_diag_req_compat +netlink_sock_diag.test
nlattr_inet_diag_req_v2 +netlink_sock_diag.test
diff --git a/tests/nlattr_ifinfomsg.c b/tests/nlattr_ifinfomsg.c
index 7e42ed1..3c08e8b 100644
--- a/tests/nlattr_ifinfomsg.c
+++ b/tests/nlattr_ifinfomsg.c
@@ -29,12 +29,30 @@
#include "tests.h"
#include <stdio.h>
+#include <stddef.h>
#include "test_nlattr.h"
+#include <arpa/inet.h>
#include <linux/if.h>
#include <linux/if_arp.h>
+#ifdef HAVE_LINUX_IF_LINK_H
+# include <linux/if_link.h>
+#endif
+#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
+#define IFLA_PHYS_PORT_ID 34
+#define IFLA_LINK_NETNSID 37
+#define SET_IFI_TYPE(type) \
+ do { \
+ ifi_type = type; \
+ ifi_type_str = #type; \
+ } \
+ while (0)
+
+unsigned short ifi_type = ARPHRD_LOOPBACK;
+const char *ifi_type_str = "ARPHRD_LOOPBACK";
+
static void
init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
@@ -47,7 +65,7 @@ init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
struct ifinfomsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct ifinfomsg, msg,
.ifi_family = AF_UNIX,
- .ifi_type = ARPHRD_LOOPBACK,
+ .ifi_type = ifi_type,
.ifi_index = ifindex_lo(),
.ifi_flags = IFF_UP,
);
@@ -58,10 +76,10 @@ print_ifinfomsg(const unsigned int msg_len)
{
printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP"
", seq=0, pid=0}, {ifi_family=AF_UNIX"
- ", ifi_type=ARPHRD_LOOPBACK"
+ ", ifi_type=%s"
", ifi_index=" IFINDEX_LO_STR
", ifi_flags=IFF_UP, ifi_change=0}",
- msg_len);
+ msg_len, ifi_type_str);
}
int
@@ -85,6 +103,236 @@ main(void)
4, pattern, 4,
print_quoted_hex(pattern, 4));
+ const int32_t netnsid = 0xacbdabda;
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_LINK_NETNSID, pattern, netnsid,
+ printf("%d", netnsid));
+
+ static const struct rtnl_link_stats st = {
+ .rx_packets = 0xabcdefac,
+ .tx_packets = 0xbcdacdab,
+ .rx_bytes = 0xcdbafaab,
+ .tx_bytes = 0xdafabadb,
+ .rx_errors = 0xeabcdaeb,
+ .tx_errors = 0xfefabeab,
+ .rx_dropped = 0xadbafafb,
+ .tx_dropped = 0xbdffabda,
+ .multicast = 0xcdabdfea,
+ .collisions = 0xefadbaeb,
+ .rx_length_errors = 0xfabffabd,
+ .rx_over_errors = 0xafbafabc,
+ .rx_crc_errors = 0xbfdabdad,
+ .rx_frame_errors = 0xcfdabfad,
+ .rx_fifo_errors = 0xddfdebad,
+ .rx_missed_errors = 0xefabdcba,
+ .tx_aborted_errors = 0xefdadbfa,
+ .tx_carrier_errors = 0xfaefbada,
+ .tx_fifo_errors = 0xaebdffab,
+ .tx_heartbeat_errors = 0xbadebaaf,
+ .tx_window_errors = 0xcdafbada,
+ .rx_compressed = 0xdeffadbd,
+ .tx_compressed = 0xefdadfab
+ };
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_STATS, pattern, st,
+ PRINT_FIELD_U("{", st, rx_packets);
+ PRINT_FIELD_U(", ", st, tx_packets);
+ PRINT_FIELD_U(", ", st, rx_bytes);
+ PRINT_FIELD_U(", ", st, tx_bytes);
+ PRINT_FIELD_U(", ", st, rx_errors);
+ PRINT_FIELD_U(", ", st, tx_errors);
+ PRINT_FIELD_U(", ", st, rx_dropped);
+ PRINT_FIELD_U(", ", st, tx_dropped);
+ PRINT_FIELD_U(", ", st, multicast);
+ PRINT_FIELD_U(", ", st, collisions);
+ PRINT_FIELD_U(", ", st, rx_length_errors);
+ PRINT_FIELD_U(", ", st, rx_over_errors);
+ PRINT_FIELD_U(", ", st, rx_crc_errors);
+ PRINT_FIELD_U(", ", st, rx_frame_errors);
+ PRINT_FIELD_U(", ", st, rx_fifo_errors);
+ PRINT_FIELD_U(", ", st, rx_missed_errors);
+ PRINT_FIELD_U(", ", st, tx_aborted_errors);
+ PRINT_FIELD_U(", ", st, tx_carrier_errors);
+ PRINT_FIELD_U(", ", st, tx_fifo_errors);
+ PRINT_FIELD_U(", ", st, tx_heartbeat_errors);
+ PRINT_FIELD_U(", ", st, tx_window_errors);
+ PRINT_FIELD_U(", ", st, rx_compressed);
+ PRINT_FIELD_U(", ", st, tx_compressed);
+#ifdef HAVE_STRUCT_RTNL_LINK_STATS_RX_NOHANDLER
+ PRINT_FIELD_U(", ", st, rx_nohandler);
+#endif
+ printf("}"));
+
+ static const struct rtnl_link_ifmap map = {
+ .mem_start = 0xadcbefedefbcdedb,
+ .mem_end = 0xefcbeabdecdcdefa,
+ .base_addr = 0xaddbeabdfaacdbae,
+ .irq = 0xefaf,
+ .dma = 0xab,
+ .port = 0xcd
+ };
+ const unsigned int sizeof_ifmap =
+ offsetofend(struct rtnl_link_ifmap, port);
+ const unsigned int plen = sizeof_ifmap - 1 > DEFAULT_STRLEN
+ ? DEFAULT_STRLEN
+ : (int) sizeof_ifmap - 1;
+ /* len < sizeof(map) */
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_MAP, plen, pattern, plen,
+ print_quoted_hex(pattern, plen));
+
+ /* short read of sizeof(obj_) */
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_MAP, sizeof_ifmap, &map, sizeof_ifmap - 1,
+ printf("%p", RTA_DATA(TEST_NLATTR_nla)));
+
+ /* sizeof(map) */
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_MAP, sizeof_ifmap, &map, sizeof_ifmap,
+ PRINT_FIELD_X("{", map, mem_start);
+ PRINT_FIELD_X(", ", map, mem_end);
+ PRINT_FIELD_X(", ", map, base_addr);
+ PRINT_FIELD_U(", ", map, irq);
+ PRINT_FIELD_U(", ", map, dma);
+ PRINT_FIELD_U(", ", map, port);
+ printf("}"));
+
+#ifdef HAVE_STRUCT_RTNL_LINK_STATS64
+ static const struct rtnl_link_stats64 st64 = {
+ .rx_packets = 0xadcbefedefbcdedb,
+ .tx_packets = 0xbdabdedabdcdeabd,
+ .rx_bytes = 0xcdbaefbaeadfabec,
+ .tx_bytes = 0xdbaedbafabbeacdb,
+ .rx_errors = 0xefabfdaefabaefab,
+ .tx_errors = 0xfaebfabfabbaeabf,
+ .rx_dropped = 0xacdbaedbadbabeba,
+ .tx_dropped = 0xbcdeffebdabeadbe,
+ .multicast = 0xeeffbaeabaeffabe,
+ .collisions = 0xffbaefcefbafacef,
+ .rx_length_errors = 0xaabbdeabceffdecb,
+ .rx_over_errors = 0xbbdcdadebadeaeed,
+ .rx_crc_errors= 0xccdeabecefaedbef,
+ .rx_frame_errors = 0xddbedaedebcedaef,
+ .rx_fifo_errors = 0xeffbadefafdaeaab,
+ .rx_missed_errors = 0xfefaebccceadeecd,
+ .tx_aborted_errors = 0xabcdadefcdadef,
+ .tx_carrier_errors = 0xbccdafaeeaaefe,
+ .tx_fifo_errors = 0xcddefdbedeadce,
+ .tx_heartbeat_errors = 0xedaededdadcdea,
+ .tx_window_errors = 0xfdacdeaccedcda,
+ .rx_compressed = 0xacdbbcacdbccef,
+ .tx_compressed = 0xbcdadefcdedfea
+ };
+ TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_STATS64, pattern, st64,
+ PRINT_FIELD_U("{", st64, rx_packets);
+ PRINT_FIELD_U(", ", st64, tx_packets);
+ PRINT_FIELD_U(", ", st64, rx_bytes);
+ PRINT_FIELD_U(", ", st64, tx_bytes);
+ PRINT_FIELD_U(", ", st64, rx_errors);
+ PRINT_FIELD_U(", ", st64, tx_errors);
+ PRINT_FIELD_U(", ", st64, rx_dropped);
+ PRINT_FIELD_U(", ", st64, tx_dropped);
+ PRINT_FIELD_U(", ", st64, multicast);
+ PRINT_FIELD_U(", ", st64, collisions);
+ PRINT_FIELD_U(", ", st64, rx_length_errors);
+ PRINT_FIELD_U(", ", st64, rx_over_errors);
+ PRINT_FIELD_U(", ", st64, rx_crc_errors);
+ PRINT_FIELD_U(", ", st64, rx_frame_errors);
+ PRINT_FIELD_U(", ", st64, rx_fifo_errors);
+ PRINT_FIELD_U(", ", st64, rx_missed_errors);
+ PRINT_FIELD_U(", ", st64, tx_aborted_errors);
+ PRINT_FIELD_U(", ", st64, tx_carrier_errors);
+ PRINT_FIELD_U(", ", st64, tx_fifo_errors);
+ PRINT_FIELD_U(", ", st64, tx_heartbeat_errors);
+ PRINT_FIELD_U(", ", st64, tx_window_errors);
+ PRINT_FIELD_U(", ", st64, rx_compressed);
+ PRINT_FIELD_U(", ", st64, tx_compressed);
+#ifdef HAVE_STRUCT_RTNL_LINK_STATS64_RX_NOHANDLER
+ PRINT_FIELD_U(", ", st64, rx_nohandler);
+#endif
+ printf("}"));
+#endif
+
+ static const uint8_t id[] = { 0xcd, 0xef };
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_PHYS_PORT_ID, sizeof(id), id, sizeof(id),
+ printf("[%u, %u]", id[0], id[1]));
+
+ static uint8_t bigid[33];
+ memcpy(bigid, pattern, sizeof(bigid));
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_PHYS_PORT_ID, sizeof(bigid), bigid, sizeof(bigid),
+ size_t i;
+ for (i = 0; i < 32; ++i) {
+ printf(i ? ", " : "[");
+ printf("%u", bigid[i]);
+ }
+ printf(", ...]"));
+
+ static uint8_t addr[] = { 0xeb, 0xfe };
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(addr), addr, sizeof(addr),
+ printf("%02x:%02x", addr[0], addr[1]));
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(addr), addr, sizeof(addr) - 1,
+ printf("%02x: ...", addr[0]));
+
+ static uint8_t long_addr[MAX_ADDR_LEN + 1];
+ memcpy(long_addr, pattern, sizeof(long_addr));
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS,
+ sizeof(long_addr), long_addr, sizeof(long_addr),
+ size_t i;
+ for (i = 0; i < MAX_ADDR_LEN; ++i) {
+ printf(i ? ":" : "");
+ printf("%02x", long_addr[i]);
+ }
+ printf(": ..."));
+
+ const char address[] = "12.34.56.78";
+ struct in_addr a4;
+ SET_IFI_TYPE(ARPHRD_TUNNEL);
+
+ if (!inet_pton(AF_INET, address, &a4))
+ perror_msg_and_skip("inet_pton");
+
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(a4), &a4, sizeof(a4) - 1,
+ printf("%p", RTA_DATA(TEST_NLATTR_nla)));
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(a4), &a4, sizeof(a4),
+ printf("%s", address));
+
+ const char address6[] = "12:34:56:78:90:ab:cd:ef";
+ struct in6_addr a6;
+ SET_IFI_TYPE(ARPHRD_TUNNEL6);
+
+ if (!inet_pton(AF_INET6, address6, &a6))
+ perror_msg_and_skip("inet_pton");
+
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(a6), &a6, sizeof(a6) - 1,
+ printf("%p", RTA_DATA(TEST_NLATTR_nla)));
+ TEST_NLATTR(fd, nlh0, hdrlen,
+ init_ifinfomsg, print_ifinfomsg,
+ IFLA_ADDRESS, sizeof(a6), &a6, sizeof(a6),
+ printf("%s", address6));
+
puts("+++ exited with 0 +++");
return 0;
}
--
2.7.4
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