From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Schillstrom Subject: [PATCH 1/1] IPVS : bug in ip_vs_ftp, same list heaad used in all netns. Date: Tue, 24 May 2011 14:11:05 +0200 Message-ID: <1306239065-17271-1-git-send-email-hans.schillstrom@ericsson.com> Mime-Version: 1.0 Content-Type: text/plain Cc: hans@schillstrom.com, Hans Schillstrom To: horms@verge.net.au, ja@ssi.bg, wensong@linux-vs.org, lvs-devel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org Return-path: Sender: lvs-devel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org When ip_vs was adapted to netns the ftp application was not adapted in a correct way. However this is a fix to avoid kernel errors. In the long term another solution might be chosen. I.e the ports that the ftp appl, uses should be per netns. Signed-off-by: Hans Schillstrom --- include/net/ip_vs.h | 3 ++- net/netfilter/ipvs/ip_vs_ftp.c | 27 +++++++++++++++++++-------- 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 4fff432..481f856 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -797,7 +797,8 @@ struct netns_ipvs { struct list_head rs_table[IP_VS_RTAB_SIZE]; /* ip_vs_app */ struct list_head app_list; - + /* ip_vs_ftp */ + struct ip_vs_app *ftp_app; /* ip_vs_proto */ #define IP_VS_PROTO_TAB_SIZE 32 /* must be power of 2 */ struct ip_vs_proto_data *proto_data_table[IP_VS_PROTO_TAB_SIZE]; diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index 6b5dd6d..af63553 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -411,25 +411,35 @@ static struct ip_vs_app ip_vs_ftp = { static int __net_init __ip_vs_ftp_init(struct net *net) { int i, ret; - struct ip_vs_app *app = &ip_vs_ftp; + struct ip_vs_app *app; + struct netns_ipvs *ipvs = net_ipvs(net); + + app = kmemdup(&ip_vs_ftp, sizeof(struct ip_vs_app), GFP_KERNEL); + if (!app) + return -ENOMEM; + INIT_LIST_HEAD(&app->a_list); + INIT_LIST_HEAD(&app->incs_list); + ipvs->ftp_app = app; ret = register_ip_vs_app(net, app); if (ret) - return ret; + goto err_exit; for (i=0; iprotocol, ports[i]); if (ret) - break; + goto err_unreg; pr_info("%s: loaded support on port[%d] = %d\n", app->name, i, ports[i]); } + return 0; - if (ret) - unregister_ip_vs_app(net, app);