netdev - Re: [PATCH iproute2 REGRESSION] ss: Dont show netlink and packet sockets by default

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Date:	Sun, 14 Dec 2014 19:15:08 +0200
From:	vadim4j@...il.com
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Vadim Kochan <vadim4j@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 REGRESSION] ss: Dont show netlink and packet
 sockets by default

On Sun, Dec 14, 2014 at 05:26:45PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 12/14/2014 12:36 PM, Vadim Kochan wrote:
> 
> >From: Vadim Kochan <vadim4j@...il.com>
> 
> >Checking by SS_CLOSE state was remowed in:
> 
> >     (45a4770bc0) ss: Remove checking SS_CLOSE state for packet and netlink
> 
> >which is not really correct because now by default all sockets are seen
> >when do 'ss'.
> 
> >Here is most correct fix which considers specified family.
> 
> >To see netlink sockets:
> >     ss -A netlink
> 
> >To see packet sockets:
> >     ss -A packet
> 
> >And ss by default will show only connected/established sockets as it
> >was before all the time.
> >
> >Signed-off-by: Vadim Kochan <vadim4j@...il.com>
> >---
> >  misc/ss.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> 
> >diff --git a/misc/ss.c b/misc/ss.c
> >index e9927a5..6050ab6 100644
> >--- a/misc/ss.c
> >+++ b/misc/ss.c
> >@@ -2801,6 +2801,9 @@ static int packet_show(struct filter *f)
> >  	int ino;
> >  	unsigned long long sk;
> >
> >+	if (preferred_family != AF_PACKET && !(f->states & (1<<SS_CLOSE)))
> 
>   Please surround << with spaces, to be consistent with other operators and
> general kernel coding style.
> 
> >+		return 0;
> >+
> >  	if (packet_show_netlink(f, NULL) == 0)
> >  		return 0;
> >
> >@@ -3028,6 +3031,9 @@ static int netlink_show(struct filter *f)
> >  	int rq, wq, rc;
> >  	unsigned long long sk, cb;
> >
> >+	if (preferred_family != AF_NETLINK && !(f->states & (1<<SS_CLOSE)))
> 
>    Likewise.
> 
> >+		return 0;
> >+
> [...]
> 
> WBR, Sergei
> 
OK, I just returned removed code, but I agree to correct it, thanks.
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