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inet_diag: Introduce socket family checks

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The new API will specify family to work with. Teach the existing
socket walking code to bypass not interesting ones.

To preserve compatibility with existing behavior the _compat code
sets interesting family to AF_UNSPEC to dump them all.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2011-12-06 07:59:15 +00:00 committed by David S. Miller
parent 25c4cd2b6d
commit d23deaa07b
1 changed files with 11 additions and 1 deletions
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12
net/ipv4/inet_diag.c
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@ -743,6 +743,10 @@ static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
continue;
}
if (r->sdiag_family != AF_UNSPEC &&
sk->sk_family != r->sdiag_family)
goto next_listen;
if (r->id.idiag_sport != inet->inet_sport &&
r->id.idiag_sport)
goto next_listen;
@ -808,6 +812,9 @@ static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
goto next_normal;
if (!(r->idiag_states & (1 << sk->sk_state)))
goto next_normal;
if (r->sdiag_family != AF_UNSPEC &&
sk->sk_family != r->sdiag_family)
goto next_normal;
if (r->id.idiag_sport != inet->inet_sport &&
r->id.idiag_sport)
goto next_normal;
@ -830,6 +837,9 @@ static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
if (num < s_num)
goto next_dying;
if (r->sdiag_family != AF_UNSPEC &&
tw->tw_family != r->sdiag_family)
goto next_dying;
if (r->id.idiag_sport != tw->tw_sport &&
r->id.idiag_sport)
goto next_dying;
@ -873,7 +883,7 @@ static int inet_diag_dump_compat(struct sk_buff *skb, struct netlink_callback *c
struct nlattr *bc = NULL;
int hdrlen = sizeof(struct inet_diag_req_compat);
req.sdiag_family = rc->idiag_family;
req.sdiag_family = AF_UNSPEC; /* compatibility */
req.sdiag_protocol = inet_diag_type2proto(cb->nlh->nlmsg_type);
req.idiag_ext = rc->idiag_ext;
req.idiag_states = rc->idiag_states;