net-netlink: Add a new attribute to expose TCLASS values via netlink

commit 3ceca749668a52bd795585e0f71c6f0b04814f7b added a TOS attribute.

Unfortunately TOS and TCLASS are both present in a dual-stack v6 socket,
furthermore they can have different values.  As such one cannot in a
sane way expose both through a single attribute.

Signed-off-by: Maciej Żenczyowski <maze@google.com>
CC: Murali Raja <muralira@google.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index 80b480c..abf5028 100644 (file)
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -98,9 +98,10 @@ enum {
        INET_DIAG_VEGASINFO,
        INET_DIAG_CONG,
        INET_DIAG_TOS,
+       INET_DIAG_TCLASS,
 };
 
-#define INET_DIAG_MAX INET_DIAG_TOS
+#define INET_DIAG_MAX INET_DIAG_TCLASS
 
 
 /* INET_DIAG_MEM */

diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index f5e2bda..68e8ac5 100644 (file)
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -133,8 +133,8 @@ static int inet_csk_diag_fill(struct sock *sk,
                               &np->rcv_saddr);
                ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
                               &np->daddr);
-               if (ext & (1 << (INET_DIAG_TOS - 1)))
-                       RTA_PUT_U8(skb, INET_DIAG_TOS, np->tclass);
+               if (ext & (1 << (INET_DIAG_TCLASS - 1)))
+                       RTA_PUT_U8(skb, INET_DIAG_TCLASS, np->tclass);
        }
 #endif