net-netlink: Add a new attribute to expose TOS values via netlink (3ceca749) · Commits · 戴 / test

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>

include/linux/inet_diag.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 */

net/ipv4/inet_diag.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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

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