From 3ceca749668a52bd795585e0f71c6f0b04814f7b Mon Sep 17 00:00:00 2001 From: Murali Raja Date: Wed, 12 Oct 2011 09:00:35 +0000 Subject: [PATCH] net-netlink: Add a new attribute to expose TOS values via netlink This patch exposes the tos value for the TCP sockets when the TOS flag is requested in the ext_flags for the inet_diag request. This would mainly be used to expose TOS values for both for TCP and UDP sockets. Currently it is supported for TCP. When netlink support for UDP would be added the support to expose the TOS values would alse be done. For IPV4 tos value is exposed and for IPV6 tclass value is exposed. Signed-off-by: Murali Raja Acked-by: Stephen Hemminger Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/inet_diag.h | 3 ++- net/ipv4/inet_diag.c | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h index bc8c49022084..80b480c97532 100644 --- a/include/linux/inet_diag.h +++ b/include/linux/inet_diag.h @@ -97,9 +97,10 @@ enum { INET_DIAG_INFO, INET_DIAG_VEGASINFO, INET_DIAG_CONG, + INET_DIAG_TOS, }; -#define INET_DIAG_MAX INET_DIAG_CONG +#define INET_DIAG_MAX INET_DIAG_TOS /* INET_DIAG_MEM */ diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index 389a2e6a17fd..f5e2bdaef949 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -108,6 +108,9 @@ static int inet_csk_diag_fill(struct sock *sk, icsk->icsk_ca_ops->name); } + if ((ext & (1 << (INET_DIAG_TOS - 1))) && (sk->sk_family != AF_INET6)) + RTA_PUT_U8(skb, INET_DIAG_TOS, inet->tos); + r->idiag_family = sk->sk_family; r->idiag_state = sk->sk_state; r->idiag_timer = 0; @@ -130,6 +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); } #endif -- 2.30.2