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[NETNS][IPV6] rt6_info - move rt6_info structure inside the namespace

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The rt6_info structures are moved inside the network namespace
structure. All references to these structures are now relative to the
initial network namespace.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Lezcano
2008-03-04 13:48:30 -08:00
committed by David S. Miller
parent bdb3289f73
commit 8ed6778967
6 changed files with 171 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
net/ipv6/ip6_fib.c
View File

@ -79,8 +79,8 @@ static DEFINE_RWLOCK(fib6_walker_lock);
static void fib6_prune_clones(struct net *net, struct fib6_node *fn,
struct rt6_info *rt);
static struct rt6_info * fib6_find_prefix(struct fib6_node *fn);
static struct fib6_node * fib6_repair_tree(struct fib6_node *fn);
static struct rt6_info *fib6_find_prefix(struct net *net, struct fib6_node *fn);
static struct fib6_node *fib6_repair_tree(struct net *net, struct fib6_node *fn);
static int fib6_walk(struct fib6_walker_t *w);
static int fib6_walk_continue(struct fib6_walker_t *w);
@ -193,14 +193,14 @@ static void fib6_link_table(struct net *net, struct fib6_table *tb)
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
static struct fib6_table *fib6_alloc_table(u32 id)
static struct fib6_table *fib6_alloc_table(struct net *net, u32 id)
{
struct fib6_table *table;
table = kzalloc(sizeof(*table), GFP_ATOMIC);
if (table != NULL) {
table->tb6_id = id;
table->tb6_root.leaf = ip6_null_entry;
table->tb6_root.leaf = net->ipv6.ip6_null_entry;
table->tb6_root.fn_flags = RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO;
}
@ -217,7 +217,7 @@ struct fib6_table *fib6_new_table(struct net *net, u32 id)
if (tb)
return tb;
tb = fib6_alloc_table(id);
tb = fib6_alloc_table(net, id);
if (tb != NULL)
fib6_link_table(net, tb);
@ -267,7 +267,7 @@ struct fib6_table *fib6_get_table(struct net *net, u32 id)
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi *fl,
int flags, pol_lookup_t lookup)
{
return (struct dst_entry *) lookup(net->ipv6.fib6_main_tbl, fl, flags);
return (struct dst_entry *) lookup(net, net->ipv6.fib6_main_tbl, fl, flags);
}
static void fib6_tables_init(struct net *net)
@ -717,8 +717,8 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
if (sfn == NULL)
goto st_failure;
sfn->leaf = ip6_null_entry;
atomic_inc(&ip6_null_entry->rt6i_ref);
sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
atomic_inc(&info->nl_net->ipv6.ip6_null_entry->rt6i_ref);
sfn->fn_flags = RTN_ROOT;
sfn->fn_sernum = fib6_new_sernum();
@ -773,11 +773,11 @@ out:
* super-tree leaf node we have to find a new one for it.
*/
if (pn != fn && !pn->leaf && !(pn->fn_flags & RTN_RTINFO)) {
pn->leaf = fib6_find_prefix(pn);
pn->leaf = fib6_find_prefix(info->nl_net, pn);
#if RT6_DEBUG >= 2
if (!pn->leaf) {
BUG_TRAP(pn->leaf != NULL);
pn->leaf = ip6_null_entry;
pn->leaf = info->nl_net->ipv6.ip6_null_entry;
}
#endif
atomic_inc(&pn->leaf->rt6i_ref);
@ -793,7 +793,7 @@ out:
*/
st_failure:
if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)))
fib6_repair_tree(fn);
fib6_repair_tree(info->nl_net, fn);
dst_free(&rt->u.dst);
return err;
#endif
@ -959,10 +959,10 @@ struct fib6_node * fib6_locate(struct fib6_node *root,
*
*/
static struct rt6_info * fib6_find_prefix(struct fib6_node *fn)
static struct rt6_info *fib6_find_prefix(struct net *net, struct fib6_node *fn)
{
if (fn->fn_flags&RTN_ROOT)
return ip6_null_entry;
return net->ipv6.ip6_null_entry;
while(fn) {
if(fn->left)
@ -981,7 +981,8 @@ static struct rt6_info * fib6_find_prefix(struct fib6_node *fn)
* is the node we want to try and remove.
*/
static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
static struct fib6_node *fib6_repair_tree(struct net *net,
struct fib6_node *fn)
{
int children;
int nstate;
@ -1008,11 +1009,11 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
|| (children && fn->fn_flags&RTN_ROOT)
#endif
) {
fn->leaf = fib6_find_prefix(fn);
fn->leaf = fib6_find_prefix(net, fn);
#if RT6_DEBUG >= 2
if (fn->leaf==NULL) {
BUG_TRAP(fn->leaf);
fn->leaf = ip6_null_entry;
fn->leaf = net->ipv6.ip6_null_entry;
}
#endif
atomic_inc(&fn->leaf->rt6i_ref);
@ -1117,7 +1118,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
if (fn->leaf == NULL) {
fn->fn_flags &= ~RTN_RTINFO;
net->ipv6.rt6_stats->fib_route_nodes--;
fn = fib6_repair_tree(fn);
fn = fib6_repair_tree(net, fn);
}
if (atomic_read(&rt->rt6i_ref) != 1) {
@ -1129,7 +1130,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
*/
while (fn) {
if (!(fn->fn_flags&RTN_RTINFO) && fn->leaf == rt) {
fn->leaf = fib6_find_prefix(fn);
fn->leaf = fib6_find_prefix(net, fn);
atomic_inc(&fn->leaf->rt6i_ref);
rt6_release(rt);
}
@ -1145,6 +1146,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
int fib6_del(struct rt6_info *rt, struct nl_info *info)
{
struct net *net = info->nl_net;
struct fib6_node *fn = rt->rt6i_node;
struct rt6_info **rtp;
@ -1154,7 +1156,7 @@ int fib6_del(struct rt6_info *rt, struct nl_info *info)
return -ENOENT;
}
#endif
if (fn == NULL || rt == ip6_null_entry)
if (fn == NULL || rt == net->ipv6.ip6_null_entry)
return -ENOENT;
BUG_TRAP(fn->fn_flags&RTN_RTINFO);
@ -1501,7 +1503,7 @@ static int fib6_net_init(struct net *net)
goto out_fib_table_hash;
net->ipv6.fib6_main_tbl->tb6_id = RT6_TABLE_MAIN;
net->ipv6.fib6_main_tbl->tb6_root.leaf = ip6_null_entry;
net->ipv6.fib6_main_tbl->tb6_root.leaf = net->ipv6.ip6_null_entry;
net->ipv6.fib6_main_tbl->tb6_root.fn_flags =
RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO;
@ -1511,7 +1513,7 @@ static int fib6_net_init(struct net *net)
if (!net->ipv6.fib6_local_tbl)
goto out_fib6_main_tbl;
net->ipv6.fib6_local_tbl->tb6_id = RT6_TABLE_LOCAL;
net->ipv6.fib6_local_tbl->tb6_root.leaf = ip6_null_entry;
net->ipv6.fib6_local_tbl->tb6_root.leaf = net->ipv6.ip6_null_entry;
net->ipv6.fib6_local_tbl->tb6_root.fn_flags =
RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO;
#endif
@ -1536,6 +1538,7 @@ out_timer:
static void fib6_net_exit(struct net *net)
{
rt6_ifdown(net, NULL);
del_timer(net->ipv6.ip6_fib_timer);
kfree(net->ipv6.ip6_fib_timer);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES