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From: Simon Horman <horms@verge.net.au>
To: lvs-devel@vger.kernel.org, netdev@vger.kernel.org,
	netfilter@vger.kernel.org, netfilter-devel@vger.kernel.org
Cc: Jan Engelhardt <jengelh@medozas.de>,
	Stephen Hemminger <shemminger@vyatta.com>,
	Wensong Zhang <wensong@linux-vs.org>,
	Julian Anastasov <ja@ssi.bg>, Patrick McHardy <kaber@trash.net>
Subject: [patch v1 08/12] IPVS: Add persistence engine data to /proc/net/ip_vs_conn
Date: Sun, 22 Aug 2010 21:45:05 +0900	[thread overview]
Message-ID: <20100822124859.438564128@vergenet.net> (raw)
In-Reply-To: 20100822124457.339517323@vergenet.net

[-- Attachment #1: pe-proc.patch --]
[-- Type: text/plain, Size: 2870 bytes --]

This shouldn't break compatibility with userspace as the new data
is at the end of the line. 

I have confirmed that this doesn't break ipvsadm, the main (only?)
user-space user of this data.

Signed-off-by: Simon Horman <horms@verge.net.au>

* Jan Engelhardt suggested using netlink to do this, but it seems like
  overkill to me. I'm willing to be convinced otherwise.

Index: nf-next-2.6/include/net/ip_vs.h
===================================================================
--- nf-next-2.6.orig/include/net/ip_vs.h	2010-07-26 07:51:10.000000000 +0900
+++ nf-next-2.6/include/net/ip_vs.h	2010-07-26 16:39:42.000000000 +0900
@@ -569,6 +569,7 @@ struct ip_vs_pe {
 	bool (*ct_match)(const struct ip_vs_conn_param *p,
 			 struct ip_vs_conn *ct);
 	u32 (*hashkey_raw)(const struct ip_vs_conn_param *p, u32 initval);
+	int (*show_pe_data)(const struct ip_vs_conn *cp, char *buf);
 };
 
 /*
Index: nf-next-2.6/net/netfilter/ipvs/ip_vs_conn.c
===================================================================
--- nf-next-2.6.orig/net/netfilter/ipvs/ip_vs_conn.c	2010-07-26 07:51:10.000000000 +0900
+++ nf-next-2.6/net/netfilter/ipvs/ip_vs_conn.c	2010-07-26 16:39:38.000000000 +0900
@@ -921,30 +921,44 @@ static int ip_vs_conn_seq_show(struct se
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,
-   "Pro FromIP   FPrt ToIP     TPrt DestIP   DPrt State       Expires\n");
+   "Pro FromIP   FPrt ToIP     TPrt DestIP   DPrt State       Expires PEName PEData\n");
 	else {
 		const struct ip_vs_conn *cp = v;
+		char pe_data[IP_VS_PENAME_MAXLEN + IP_VS_PEDATA_MAXLEN + 3];
+		size_t len = 0;
+
+		if (cp->dest->svc->pe && cp->dest->svc->pe->show_pe_data) {
+			pe_data[0] = ' ';
+			len = strlen(cp->dest->svc->pe->name);
+			memcpy(pe_data + 1, cp->dest->svc->pe->name, len);
+			pe_data[len + 1] = ' ';
+			len += 2;
+			len += cp->dest->svc->pe->show_pe_data(cp,
+							       pe_data + len);
+		}
+		pe_data[len] = '\0';
 
 #ifdef CONFIG_IP_VS_IPV6
 		if (cp->af == AF_INET6)
-			seq_printf(seq, "%-3s %pI6 %04X %pI6 %04X %pI6 %04X %-11s %7lu\n",
+			seq_printf(seq, "%-3s %pI6 %04X %pI6 %04X "
+				"%pI6 %04X %-11s %7lu%s\n",
 				ip_vs_proto_name(cp->protocol),
 				&cp->caddr.in6, ntohs(cp->cport),
 				&cp->vaddr.in6, ntohs(cp->vport),
 				&cp->daddr.in6, ntohs(cp->dport),
 				ip_vs_state_name(cp->protocol, cp->state),
-				(cp->timer.expires-jiffies)/HZ);
+				(cp->timer.expires-jiffies)/HZ, pe_data);
 		else
 #endif
 			seq_printf(seq,
 				"%-3s %08X %04X %08X %04X"
-				" %08X %04X %-11s %7lu\n",
+				" %08X %04X %-11s %7lu%s\n",
 				ip_vs_proto_name(cp->protocol),
 				ntohl(cp->caddr.ip), ntohs(cp->cport),
 				ntohl(cp->vaddr.ip), ntohs(cp->vport),
 				ntohl(cp->daddr.ip), ntohs(cp->dport),
 				ip_vs_state_name(cp->protocol, cp->state),
-				(cp->timer.expires-jiffies)/HZ);
+				(cp->timer.expires-jiffies)/HZ, pe_data);
 	}
 	return 0;
 }


  parent reply	other threads:[~2010-08-22 12:45 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-22 12:44 [patch v1 00/12] IPVS: SIP Persistence Engine Simon Horman
2010-08-22 12:44 ` [patch v1 01/12] netfilter: nf_conntrack_sip: Allow ct_sip_get_header() to be called with a null ct argument Simon Horman
2010-08-22 12:44 ` [patch v1 02/12] netfilter: nf_conntrack_sip: Add callid parser Simon Horman
2010-08-22 12:45 ` [patch v1 03/12] IPVS: compact ip_vs_sched_persist() Simon Horman
2010-08-22 12:45 ` [patch v1 04/12] IPVS: Add struct ip_vs_conn_param Simon Horman
2010-08-22 12:45 ` [patch v1 05/12] IPVS: Allow null argument to ip_vs_scheduler_put() Simon Horman
2010-08-22 12:45 ` [patch v1 06/12] IPVS: ip_vs_{un,}bind_scheduler NULL arguments Simon Horman
2010-08-22 12:45 ` [patch v1 07/12] IPVS: Add struct ip_vs_pe Simon Horman
2010-08-22 12:45 ` Simon Horman [this message]
2010-08-22 12:45 ` [patch v1 09/12] IPVS: management of persistence engine modules Simon Horman
2010-08-22 12:45 ` [patch v1 10/12] IPVS: Allow configuration of persistence engines Simon Horman
2010-08-22 12:45 ` [patch v1 11/12] IPVS: Fallback if persistence engine fails Simon Horman
2010-08-22 12:45 ` [patch v1 12/12] IPVS: sip persistence engine Simon Horman
2010-08-22 12:57 ` [patch v1 00/12] IPVS: SIP Persistence Engine Simon Horman
2010-09-16  8:12 ` Patrick McHardy
2010-09-17  2:52   ` Simon Horman
2010-09-17 11:53     ` Patrick McHardy
2010-09-18 12:52       ` Simon Horman

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