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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 <muralira@google.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Murali Raja 2011-10-12 09:00:35 +00:00 committed by David S. Miller
parent 5675592410
commit 3ceca74966
2 changed files with 7 additions and 1 deletions
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3
include/linux/inet_diag.h
View File

@ -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 */

5
net/ipv4/inet_diag.c
View File

@ -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