: rtnl_link support

index 2920e8a..58a48d7 100644
@@ -76,6 +76,8 @@ enum
 #define IFLA_WEIGHT IFLA_WEIGHT
 	IFLA_OPERSTATE,
 	IFLA_LINKMODE,
+	IFLA_LINKINFO,
+#define IFLA_LINKINFO IFLA_LINKINFO
 	__IFLA_MAX
 };
 

@@ -137,4 +139,15 @@ struct ifla_cacheinfo
 	__u32	retrans_time;
 };
 
+enum
+{
+	IFLA_INFO_UNSPEC,
+	IFLA_INFO_KIND,
+	IFLA_INFO_DATA,
+	IFLA_INFO_XSTATS,
+	__IFLA_INFO_MAX,
+};
+
+#define IFLA_INFO_MAX	(__IFLA_INFO_MAX - 1)
+
 #endif /* _LINUX_IF_LINK_H */

index c084292..4bdb83b 100644
@@ -30,6 +30,7 @@
 
 int preferred_family = AF_UNSPEC;
 int show_stats = 0;
+int show_details = 0;
 int resolve_hosts = 0;
 int oneline = 0;
 int timestamp = 0;

@@ -47,7 +48,7 @@ static void usage(void)
 "       ip [ -force ] [-batch filename\n"
 "where  OBJECT := { link | addr | route | rule | neigh | ntable | tunnel |\n"
 "                   maddr | mroute | monitor | xfrm }\n"
-"       OPTIONS := { -V[ersion] | -s[tatistics] | -r[esolve] |\n"
+"       OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
 "                    -f[amily] { inet | inet6 | ipx | dnet | link } |\n"
 "                    -o[neline] | -t[imestamp] }\n");
 	exit(-1);

@@ -188,6 +189,8 @@ int main(int argc, char **argv)
 		} else if (matches(opt, "-stats") == 0 ||
 			   matches(opt, "-statistics") == 0) {
 			++show_stats;
+		} else if (matches(opt, "-details") == 0) {
+			++show_details;
 		} else if (matches(opt, "-resolve") == 0) {
 			++resolve_hosts;
 		} else if (matches(opt, "-oneline") == 0) {

index 5bfd9b9..39f2507 100644
@@ -45,6 +45,21 @@ static inline int rtm_get_table(struct rtmsg *r, struct rtattr **tb)
 
 extern struct rtnl_handle rth;
 
+struct link_util
+{
+	struct link_util	*next;
+	const char		*id;
+	int			maxattr;
+	int			(*parse_opt)(struct link_util *, int, char **,
+					     struct nlmsghdr *);
+	void			(*print_opt)(struct link_util *, FILE *,
+					     struct rtattr *[]);
+	void			(*print_xstats)(struct link_util *, FILE *,
+					     struct rtattr *);
+};
+
+struct link_util *get_link_kind(const char *kind);
+
 #ifndef	INFINITY_LIFE_TIME
 #define     INFINITY_LIFE_TIME      0xFFFFFFFFU
 #endif

index 98effa3..da6b270 100644
@@ -134,6 +134,41 @@ void print_queuelen(char *name)
 		printf("qlen %d", ifr.ifr_qlen);
 }
 
+static void print_linktype(FILE *fp, struct rtattr *tb)
+{
+	struct rtattr *linkinfo[IFLA_INFO_MAX+1];
+	struct link_util *lu;
+	char *kind;
+
+	parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
+
+	if (!linkinfo[IFLA_INFO_KIND])
+		return;
+	kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
+
+	fprintf(fp, "%s", _SL_);
+	fprintf(fp, "    %s ", kind);
+
+	lu = get_link_kind(kind);
+	if (!lu || !lu->print_opt)
+		return;
+
+	if (1) {
+		struct rtattr *attr[lu->maxattr+1], **data = NULL;
+
+		if (linkinfo[IFLA_INFO_DATA]) {
+			parse_rtattr_nested(attr, lu->maxattr,
+					    linkinfo[IFLA_INFO_DATA]);
+			data = attr;
+		}
+		lu->print_opt(lu, fp, data);
+
+		if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
+		    lu->print_xstats)
+			lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
+	}
+}
+
 int print_linkinfo(const struct sockaddr_nl *who,
 		   struct nlmsghdr *n, void *arg)
 {

@@ -221,6 +256,10 @@ int print_linkinfo(const struct sockaddr_nl *who,
 						      b1, sizeof(b1)));
 		}
 	}
+
+	if (do_link && tb[IFLA_LINKINFO] && show_details)
+		print_linktype(fp, tb[IFLA_LINKINFO]);
+
 	if (do_link && tb[IFLA_STATS] && show_stats) {
 		struct rtnl_link_stats slocal;
 		struct rtnl_link_stats *s = RTA_DATA(tb[IFLA_STATS]);

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index 58a48d7..7e6d15d 100644
@@ -150,4 +150,38 @@ enum
 
 #define IFLA_INFO_MAX	(__IFLA_INFO_MAX - 1)
 
+/* VLAN section */
+
+enum
+{
+	IFLA_VLAN_UNSPEC,
+	IFLA_VLAN_ID,
+	IFLA_VLAN_FLAGS,
+	IFLA_VLAN_EGRESS_QOS,
+	IFLA_VLAN_INGRESS_QOS,
+	__IFLA_VLAN_MAX,
+};
+
+#define IFLA_VLAN_MAX	(__IFLA_VLAN_MAX - 1)
+
+struct ifla_vlan_flags {
+	__u32	flags;
+	__u32	mask;
+};
+
+enum
+{
+	IFLA_VLAN_QOS_UNSPEC,
+	IFLA_VLAN_QOS_MAPPING,
+	__IFLA_VLAN_QOS_MAX
+};
+
+#define IFLA_VLAN_QOS_MAX	(__IFLA_VLAN_QOS_MAX - 1)
+
+struct ifla_vlan_qos_mapping
+{
+	__u32 from;
+	__u32 to;
+};
+
 #endif /* _LINUX_IF_LINK_H */

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