tests: check decoding of rtmsg netlink attributes

* tests/nlattr_rtmsg.c: Include <netinet/in.h> and <arpa/inet.h>.
(LWTUNNEL_ENCAP_NONE, RTA_ENCAP_TYPE): New macros.
(main): Check decoding of RTA_DST, RTA_OIF, RTA_METRICS, RTA_MULTIPATH,
RTA_CACHEINFO, RTA_MFC_STATS, RTA_VIA, and RTA_ENCAP_TYPE.

Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>

diff --git a/tests/nlattr_rtmsg.c b/tests/nlattr_rtmsg.c
index fd0ccde0e9af9ff445399dedf21cf476aa691c88..1e628c2689da5ef1655e8af1b263e0f16136075a 100644 (file)
--- a/tests/nlattr_rtmsg.c
+++ b/tests/nlattr_rtmsg.c
@@ -29,10 +29,15 @@
 #include "tests.h"
 
 #include <stdio.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
 #include "test_nlattr.h"
 #include <linux/ip.h>
 #include <linux/rtnetlink.h>
 
+#define RTA_ENCAP_TYPE 21
+#define LWTUNNEL_ENCAP_NONE 0
+
 static void
 init_rtmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
 {
@@ -90,6 +95,122 @@ main(void)
                     4, pattern, 4,
                     print_quoted_hex(pattern, 4));
 
+       TEST_NLATTR(fd, nlh0, hdrlen,
+                   init_rtmsg, print_rtmsg,
+                   RTA_DST, 4, pattern, 4,
+                   print_quoted_hex(pattern, 4));
+
+       const uint32_t ifindex = ifindex_lo();
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_OIF, pattern, ifindex,
+                          printf(IFINDEX_LO_STR));
+
+       struct nlattr nla = {
+               .nla_type = RTAX_LOCK,
+               .nla_len = sizeof(nla)
+       };
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_METRICS, pattern, nla,
+                          printf("{nla_len=%u, nla_type=RTAX_LOCK}",
+                                 nla.nla_len));
+       struct rtnexthop nh = {
+               .rtnh_len = sizeof(nh) - 1,
+               .rtnh_flags = RTNH_F_DEAD,
+               .rtnh_hops = 0xab,
+               .rtnh_ifindex = ifindex_lo()
+       };
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_MULTIPATH, pattern, nh,
+                          printf("{rtnh_len=%u, rtnh_flags=RTNH_F_DEAD"
+                                 ", rtnh_hops=%u"
+                                 ", rtnh_ifindex=" IFINDEX_LO_STR "}",
+                                 nh.rtnh_len, nh.rtnh_hops));
+
+       char buf[RTNH_ALIGN(sizeof(nh)) + sizeof(nla)];
+       nh.rtnh_len = sizeof(buf);
+       nla.nla_type = RTA_DST;
+       memcpy(buf, &nh, sizeof(nh));
+       memcpy(buf + RTNH_ALIGN(sizeof(nh)), &nla, sizeof(nla));
+       TEST_NLATTR(fd, nlh0, hdrlen,
+                   init_rtmsg, print_rtmsg,
+                   RTA_MULTIPATH, sizeof(buf), buf, sizeof(buf),
+                   printf("{rtnh_len=%u, rtnh_flags=RTNH_F_DEAD"
+                          ", rtnh_hops=%u, rtnh_ifindex=" IFINDEX_LO_STR "}"
+                          ", {nla_len=%u, nla_type=RTA_DST}",
+                          nh.rtnh_len, nh.rtnh_hops, nla.nla_len));
+
+       static const struct rta_cacheinfo ci = {
+               .rta_clntref = 0xabcdefab,
+               .rta_lastuse = 0xbdadaedc,
+               .rta_expires = 0xcdadebad,
+               .rta_error = 0xdaedadeb,
+               .rta_used = 0xedfabdad,
+               .rta_id = 0xfeadbcda,
+               .rta_ts = 0xacdbaded,
+               .rta_tsage = 0xbadeadef
+       };
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_CACHEINFO, pattern, ci,
+                          PRINT_FIELD_U("{", ci, rta_clntref);
+                          PRINT_FIELD_U(", ", ci, rta_lastuse);
+                          PRINT_FIELD_U(", ", ci, rta_expires);
+                          PRINT_FIELD_U(", ", ci, rta_error);
+                          PRINT_FIELD_U(", ", ci, rta_used);
+                          PRINT_FIELD_X(", ", ci, rta_id);
+                          PRINT_FIELD_U(", ", ci, rta_ts);
+                          PRINT_FIELD_U(", ", ci, rta_tsage);
+                          printf("}"));
+
+#ifdef HAVE_STRUCT_RTA_MFC_STATS
+       static const struct rta_mfc_stats mfcs = {
+               .mfcs_packets = 0xadcdedfdadefadcd,
+               .mfcs_bytes = 0xbaedadedcdedadbd,
+               .mfcs_wrong_if = 0xcddeabeedaedabfa
+       };
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_MFC_STATS, pattern, mfcs,
+                          PRINT_FIELD_U("{", mfcs, mfcs_packets);
+                          PRINT_FIELD_U(", ", mfcs, mfcs_bytes);
+                          PRINT_FIELD_U(", ", mfcs, mfcs_wrong_if);
+                          printf("}"));
+#endif
+
+#ifdef HAVE_STRUCT_RTVIA
+       static const struct rtvia via = {
+               .rtvia_family = AF_INET
+       };
+
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_VIA, pattern, via,
+                          printf("{rtvia_family=AF_INET}"));
+
+       static const char address4[] = "12.34.56.78";
+       struct in_addr a4 = {
+               .s_addr = inet_addr(address4)
+       };
+       char rtviabuf[sizeof(via) + sizeof(a4)];
+       memcpy(rtviabuf, &via, sizeof(via));
+       memcpy(rtviabuf + sizeof(via), &a4, sizeof(a4));
+
+       TEST_NLATTR(fd, nlh0, hdrlen,
+                   init_rtmsg, print_rtmsg,
+                   RTA_VIA, sizeof(rtviabuf), rtviabuf, sizeof(rtviabuf),
+                   printf("{rtvia_family=AF_INET"
+                          ", rtvia_addr=inet_addr(\"%s\")}", address4));
+#endif
+
+       const uint16_t encap_type = LWTUNNEL_ENCAP_NONE;
+       TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                          init_rtmsg, print_rtmsg,
+                          RTA_ENCAP_TYPE, pattern, encap_type,
+                          printf("LWTUNNEL_ENCAP_NONE"));
+
        puts("+++ exited with 0 +++");
        return 0;
 }