From patchwork Fri Jul 6 11:17:02 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 169434 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id BBF602C0083 for ; Fri, 6 Jul 2012 21:20:21 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030234Ab2GFLTG (ORCPT ); Fri, 6 Jul 2012 07:19:06 -0400 Received: from mail.us.es ([193.147.175.20]:43484 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933544Ab2GFLTF (ORCPT ); Fri, 6 Jul 2012 07:19:05 -0400 Received: (qmail 1435 invoked from network); 6 Jul 2012 13:19:04 +0200 Received: from unknown (HELO us.es) (192.168.2.12) by us.es with SMTP; 6 Jul 2012 13:19:04 +0200 Received: (qmail 21443 invoked by uid 507); 6 Jul 2012 11:19:03 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on antivirus2 X-Spam-Level: X-Spam-Status: No, score=-97.2 required=7.5 tests=BAYES_50, RCVD_IN_BRBL_LASTEXT, RCVD_IN_PBL, RCVD_IN_SORBS_DUL, USER_IN_WHITELIST autolearn=disabled version=3.3.1 Received: from 127.0.0.1 by antivirus2 (envelope-from , uid 501) with qmail-scanner-2.08 (clamdscan: 0.97.5/15114. Clear:RC:1(127.0.0.1):. Processed in 0.02578 secs); 06 Jul 2012 11:19:03 -0000 Received: from unknown (HELO antivirus2) (127.0.0.1) by us.es with SMTP; 6 Jul 2012 11:19:03 -0000 Received: from 192.168.1.13 (192.168.1.13) by antivirus2 (F-Secure/fsigk_smtp/407/antivirus2); Fri, 06 Jul 2012 13:19:03 +0200 (CEST) X-Virus-Status: clean(F-Secure/fsigk_smtp/407/antivirus2) Received: (qmail 9877 invoked from network); 6 Jul 2012 13:19:03 +0200 Received: from f052137010.adsl.alicedsl.de (HELO localhost.localdomain) (pneira@us.es@78.52.137.10) by us.es with SMTP; 6 Jul 2012 13:19:03 +0200 From: pablo@netfilter.org To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org Subject: [PATCH 12/18] netfilter: nf_ct_dccp: add dccp_kmemdup_sysctl_table function Date: Fri, 6 Jul 2012 13:17:02 +0200 Message-Id: <1341573428-3204-13-git-send-email-pablo@netfilter.org> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1341573428-3204-1-git-send-email-pablo@netfilter.org> References: <1341573428-3204-1-git-send-email-pablo@netfilter.org> Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Gao feng This patch is a cleanup. It adds dccp_kmemdup_sysctl_table to split code into smaller chunks. Yet it prepares introduction of nf_conntrack_proto_*_sysctl.c. Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto_dccp.c | 54 +++++++++++++++++-------------- 1 file changed, 30 insertions(+), 24 deletions(-) diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index 52da8f0..6535326 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -387,7 +387,7 @@ dccp_state_table[CT_DCCP_ROLE_MAX + 1][DCCP_PKT_SYNCACK + 1][CT_DCCP_MAX + 1] = /* this module per-net specifics */ static int dccp_net_id __read_mostly; struct dccp_net { - struct nf_proto_net np; + struct nf_proto_net pn; int dccp_loose; unsigned int dccp_timeout[CT_DCCP_MAX + 1]; }; @@ -815,16 +815,37 @@ static struct ctl_table dccp_sysctl_table[] = { }; #endif /* CONFIG_SYSCTL */ +static int dccp_kmemdup_sysctl_table(struct nf_proto_net *pn, + struct dccp_net *dn) +{ +#ifdef CONFIG_SYSCTL + if (pn->ctl_table) + return 0; + + pn->ctl_table = kmemdup(dccp_sysctl_table, + sizeof(dccp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + + pn->ctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST]; + pn->ctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND]; + pn->ctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN]; + pn->ctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN]; + pn->ctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ]; + pn->ctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING]; + pn->ctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT]; + pn->ctl_table[7].data = &dn->dccp_loose; +#endif + return 0; +} + static int dccp_init_net(struct net *net, u_int16_t proto) { struct dccp_net *dn = dccp_pernet(net); - struct nf_proto_net *pn = (struct nf_proto_net *)dn; + struct nf_proto_net *pn = &dn->pn; -#ifdef CONFIG_SYSCTL - if (!pn->ctl_table) { -#else - if (!pn->users++) { -#endif + if (!pn->users) { /* default values */ dn->dccp_loose = 1; dn->dccp_timeout[CT_DCCP_REQUEST] = 2 * DCCP_MSL; @@ -834,24 +855,9 @@ static int dccp_init_net(struct net *net, u_int16_t proto) dn->dccp_timeout[CT_DCCP_CLOSEREQ] = 64 * HZ; dn->dccp_timeout[CT_DCCP_CLOSING] = 64 * HZ; dn->dccp_timeout[CT_DCCP_TIMEWAIT] = 2 * DCCP_MSL; -#ifdef CONFIG_SYSCTL - pn->ctl_table = kmemdup(dccp_sysctl_table, - sizeof(dccp_sysctl_table), - GFP_KERNEL); - if (!pn->ctl_table) - return -ENOMEM; - - pn->ctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST]; - pn->ctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND]; - pn->ctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN]; - pn->ctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN]; - pn->ctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ]; - pn->ctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING]; - pn->ctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT]; - pn->ctl_table[7].data = &dn->dccp_loose; -#endif } - return 0; + + return dccp_kmemdup_sysctl_table(pn, dn); } static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {