From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: [patch 03/11][NETNS][IPV6] ip6_fib - make fib6_clean_all per namespace Date: Fri, 25 Jan 2008 17:50:11 +0100 Message-ID: <20080125170807.119080534@localhost.localdomain> References: <20080125165008.317745745@localhost.localdomain> Cc: benjamin.thery@bull.net, netdev@vger.kernel.org, den@openvz.org To: davem@davemloft.net Return-path: Received: from mtagate1.uk.ibm.com ([195.212.29.134]:12819 "EHLO mtagate1.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757050AbYAYRL3 (ORCPT ); Fri, 25 Jan 2008 12:11:29 -0500 Received: from d06nrmr1407.portsmouth.uk.ibm.com (d06nrmr1407.portsmouth.uk.ibm.com [9.149.38.185]) by mtagate1.uk.ibm.com (8.13.8/8.13.8) with ESMTP id m0PHBSXp182812 for ; Fri, 25 Jan 2008 17:11:28 GMT Received: from d06av01.portsmouth.uk.ibm.com (d06av01.portsmouth.uk.ibm.com [9.149.37.212]) by d06nrmr1407.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m0PHBSCo1097738 for ; Fri, 25 Jan 2008 17:11:28 GMT Received: from d06av01.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av01.portsmouth.uk.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m0PHBOim015130 for ; Fri, 25 Jan 2008 17:11:24 GMT Content-Disposition: inline; filename=ip6-fib-make-fib6_clean_all-per-namespace.patch Sender: netdev-owner@vger.kernel.org List-ID: The function fib6_clean_all takes the network namespace as parameter. That allows to flush the routes related to a specific network namespace. Signed-off-by: Daniel Lezcano Signed-off-by: Benjamin Thery --- include/net/ip6_fib.h | 3 ++- include/net/ip6_route.h | 2 +- net/ipv6/addrconf.c | 3 ++- net/ipv6/ip6_fib.c | 7 ++++--- net/ipv6/route.c | 28 ++++++++++++++++++++-------- 5 files changed, 29 insertions(+), 14 deletions(-) Index: net-2.6.25/include/net/ip6_fib.h =================================================================== --- net-2.6.25.orig/include/net/ip6_fib.h +++ net-2.6.25/include/net/ip6_fib.h @@ -208,7 +208,8 @@ struct fib6_node *fib6_locate(struct fi struct in6_addr *daddr, int dst_len, struct in6_addr *saddr, int src_len); -extern void fib6_clean_all(int (*func)(struct rt6_info *, void *arg), +extern void fib6_clean_all(struct net *net, + int (*func)(struct rt6_info *, void *arg), int prune, void *arg); extern int fib6_add(struct fib6_node *root, Index: net-2.6.25/net/ipv6/ip6_fib.c =================================================================== --- net-2.6.25.orig/net/ipv6/ip6_fib.c +++ net-2.6.25/net/ipv6/ip6_fib.c @@ -1350,7 +1350,7 @@ static void fib6_clean_tree(struct fib6_ fib6_walk(&c.w); } -void fib6_clean_all(int (*func)(struct rt6_info *, void *arg), +void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg), int prune, void *arg) { struct fib6_table *table; @@ -1360,7 +1360,7 @@ void fib6_clean_all(int (*func)(struct r rcu_read_lock(); for (h = 0; h < FIB_TABLE_HASHSZ; h++) { - head = &init_net.ipv6.fib_table_hash[h]; + head = &net->ipv6.fib_table_hash[h]; hlist_for_each_entry_rcu(table, node, head, tb6_hlist) { write_lock_bh(&table->tb6_lock); fib6_clean_tree(&table->tb6_root, func, prune, arg); @@ -1450,7 +1450,8 @@ void fib6_run_gc(unsigned long dummy) gc_args.more = 0; ndisc_dst_gc(&gc_args.more); - fib6_clean_all(fib6_age, 0, NULL); + + fib6_clean_all(&init_net, fib6_age, 0, NULL); if (gc_args.more) mod_timer(&ip6_fib_timer, jiffies + Index: net-2.6.25/net/ipv6/route.c =================================================================== --- net-2.6.25.orig/net/ipv6/route.c +++ net-2.6.25/net/ipv6/route.c @@ -1867,9 +1867,9 @@ static int fib6_ifdown(struct rt6_info * return 0; } -void rt6_ifdown(struct net_device *dev) +void rt6_ifdown(struct net *net, struct net_device *dev) { - fib6_clean_all(fib6_ifdown, 0, dev); + fib6_clean_all(net, fib6_ifdown, 0, dev); } struct rt6_mtu_change_arg @@ -1925,7 +1925,7 @@ void rt6_mtu_change(struct net_device *d .mtu = mtu, }; - fib6_clean_all(rt6_mtu_change_route, 0, &arg); + fib6_clean_all(dev->nd_net, rt6_mtu_change_route, 0, &arg); } static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = { @@ -2313,13 +2313,25 @@ static int rt6_info_route(struct rt6_inf static int ipv6_route_show(struct seq_file *m, void *v) { - fib6_clean_all(rt6_info_route, 0, m); + struct net *net = (struct net *)m->private; + fib6_clean_all(net, rt6_info_route, 0, m); return 0; } static int ipv6_route_open(struct inode *inode, struct file *file) { - return single_open(file, ipv6_route_show, NULL); + struct net *net = get_proc_net(inode); + if (!net) + return -ENXIO; + return single_open(file, ipv6_route_show, net); +} + +static int ipv6_route_release(struct inode *inode, struct file *file) +{ + struct seq_file *seq = file->private_data; + struct net *net = seq->private; + put_net(net); + return single_release(inode, file); } static const struct file_operations ipv6_route_proc_fops = { @@ -2327,7 +2339,7 @@ static const struct file_operations ipv6 .open = ipv6_route_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = ipv6_route_release, }; static int rt6_stats_seq_show(struct seq_file *seq, void *v) @@ -2551,7 +2563,7 @@ xfrm6_init: out_proc_init: ipv6_route_proc_fini(&init_net); out_fib6_init: - rt6_ifdown(NULL); + rt6_ifdown(&init_net, NULL); fib6_gc_cleanup(); out_kmem_cache: kmem_cache_destroy(ip6_dst_ops.kmem_cachep); @@ -2563,7 +2575,7 @@ void ip6_route_cleanup(void) fib6_rules_cleanup(); ipv6_route_proc_fini(&init_net); xfrm6_fini(); - rt6_ifdown(NULL); + rt6_ifdown(&init_net, NULL); fib6_gc_cleanup(); kmem_cache_destroy(ip6_dst_ops.kmem_cachep); } Index: net-2.6.25/include/net/ip6_route.h =================================================================== --- net-2.6.25.orig/include/net/ip6_route.h +++ net-2.6.25/include/net/ip6_route.h @@ -123,7 +123,7 @@ struct rt6_rtnl_dump_arg }; extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); -extern void rt6_ifdown(struct net_device *dev); +extern void rt6_ifdown(struct net *net, struct net_device *dev); extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); extern rwlock_t rt6_lock; Index: net-2.6.25/net/ipv6/addrconf.c =================================================================== --- net-2.6.25.orig/net/ipv6/addrconf.c +++ net-2.6.25/net/ipv6/addrconf.c @@ -2430,6 +2430,7 @@ static int addrconf_ifdown(struct net_de { struct inet6_dev *idev; struct inet6_ifaddr *ifa, **bifa; + struct net *net = dev->nd_net; int i; ASSERT_RTNL(); @@ -2437,7 +2438,7 @@ static int addrconf_ifdown(struct net_de if (dev == init_net.loopback_dev && how == 1) how = 0; - rt6_ifdown(dev); + rt6_ifdown(net, dev); neigh_ifdown(&nd_tbl, dev); idev = __in6_dev_get(dev); --