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[NETFILTER]: x_tables: per-netns xt_tables

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In fact all we want is per-netns set of rules, however doing that will
unnecessary complicate routines such as ipt_hook()/ipt_do_table, so
make full xt_table array per-netns.

Every user stubbed with init_net for a while.

Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: Patrick McHardy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Alexey Dobriyan 2008-01-31 04:02:13 -08:00 • committed by David S. Miller
commit 8d87005207
7 changed files with 60 additions and 30 deletions
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12
net/ipv6/netfilter/ip6_tables.c
View file

@ -1138,7 +1138,7 @@ static int get_info(void __user *user, int *len, int compat)
if (compat)
xt_compat_lock(AF_INET6);
#endif
t = try_then_request_module(xt_find_table_lock(AF_INET6, name),
t = try_then_request_module(xt_find_table_lock(&init_net, AF_INET6, name),
"ip6table_%s", name);
if (t && !IS_ERR(t)) {
struct ip6t_getinfo info;
@ -1196,7 +1196,7 @@ get_entries(struct ip6t_get_entries __user *uptr, int *len)
return -EINVAL;
}
t = xt_find_table_lock(AF_INET6, get.name);
t = xt_find_table_lock(&init_net, AF_INET6, get.name);
if (t && !IS_ERR(t)) {
struct xt_table_info *private = t->private;
duprintf("t->private->number = %u\n", private->number);
@ -1235,7 +1235,7 @@ __do_replace(const char *name, unsigned int valid_hooks,
goto out;
}
t = try_then_request_module(xt_find_table_lock(AF_INET6, name),
t = try_then_request_module(xt_find_table_lock(&init_net, AF_INET6, name),
"ip6table_%s", name);
if (!t || IS_ERR(t)) {
ret = t ? PTR_ERR(t) : -ENOENT;
@ -1410,7 +1410,7 @@ do_add_counters(void __user *user, unsigned int len, int compat)
goto free;
}
t = xt_find_table_lock(AF_INET6, name);
t = xt_find_table_lock(&init_net, AF_INET6, name);
if (!t || IS_ERR(t)) {
ret = t ? PTR_ERR(t) : -ENOENT;
goto free;
@ -1950,7 +1950,7 @@ compat_get_entries(struct compat_ip6t_get_entries __user *uptr, int *len)
}
xt_compat_lock(AF_INET6);
t = xt_find_table_lock(AF_INET6, get.name);
t = xt_find_table_lock(&init_net, AF_INET6, get.name);
if (t && !IS_ERR(t)) {
struct xt_table_info *private = t->private;
struct xt_table_info info;
@ -2101,7 +2101,7 @@ int ip6t_register_table(struct xt_table *table, const struct ip6t_replace *repl)
return ret;
}
new_table = xt_register_table(table, &bootstrap, newinfo);
new_table = xt_register_table(&init_net, table, &bootstrap, newinfo);
if (IS_ERR(new_table)) {
xt_free_table_info(newinfo);
return PTR_ERR(new_table);