iplink: print out addrgenmode attribute

addrgenmode is currently write only by ip. So display this information
if provided by kernel as well.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>

diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 28dfe8cedfbdcbb9e921d682432d4a4ba0716e74..d8bda302f3e2378c0c50b454cde1f83bedc32ced 100644 (file)
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -255,6 +255,29 @@ static void print_linktype(FILE *fp, struct rtattr *tb)
        }
 }
 
+static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr)
+{
+       struct rtattr *inet6_attr;
+       struct rtattr *tb[IFLA_INET6_MAX + 1];
+
+       inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr);
+       if (!inet6_attr)
+               return;
+
+       parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr);
+
+       if (tb[IFLA_INET6_ADDR_GEN_MODE]) {
+               switch (rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE])) {
+               case IN6_ADDR_GEN_MODE_EUI64:
+                       fprintf(fp, "addrgenmode eui64 ");
+                       break;
+               case IN6_ADDR_GEN_MODE_NONE:
+                       fprintf(fp, "addrgenmode none ");
+                       break;
+               }
+       }
+}
+
 static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
 {
        struct ifla_vf_mac *vf_mac;
@@ -658,6 +681,9 @@ int print_linkinfo(const struct sockaddr_nl *who,
        if (tb[IFLA_LINKINFO] && show_details)
                print_linktype(fp, tb[IFLA_LINKINFO]);
 
+       if (do_link && tb[IFLA_AF_SPEC] && show_details)
+               print_af_spec(fp, tb[IFLA_AF_SPEC]);
+
        if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
                fprintf(fp, "%s    alias %s", _SL_,
                        rta_getattr_str(tb[IFLA_IFALIAS]));