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netfilter: xtables: add struct xt_mtdtor_param::net 

Add ->net to match destructor list like ->net in constructor list.

Make sure it's set in ebtables/iptables/ip6tables, this requires to
propagate netns up to *_unregister_table().

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Alexey Dobriyan 2010-01-18 08:25:47 +01:00 committed by Patrick McHardy
parent a83d8e8d09
commit f54e9367f8
19 changed files with 59 additions and 53 deletions
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1
include/linux/netfilter/x_tables.h
View File

@ -216,6 +216,7 @@ struct xt_mtchk_param {
/* Match destructor parameters */
struct xt_mtdtor_param {
struct net *net;
const struct xt_match *match;
void *matchinfo;
u_int8_t family;

2
include/linux/netfilter_bridge/ebtables.h
View File

@ -289,7 +289,7 @@ struct ebt_table {
~(__alignof__(struct ebt_replace)-1))
extern struct ebt_table *ebt_register_table(struct net *net,
const struct ebt_table *table);
extern void ebt_unregister_table(struct ebt_table *table);
extern void ebt_unregister_table(struct net *net, struct ebt_table *table);
extern unsigned int ebt_do_table(unsigned int hook, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
struct ebt_table *table);

2
include/linux/netfilter_ipv4/ip_tables.h
View File

@ -242,7 +242,7 @@ extern void ipt_init(void) __init;
extern struct xt_table *ipt_register_table(struct net *net,
const struct xt_table *table,
const struct ipt_replace *repl);
extern void ipt_unregister_table(struct xt_table *table);
extern void ipt_unregister_table(struct net *net, struct xt_table *table);
/* Standard entry. */
struct ipt_standard {

2
include/linux/netfilter_ipv6/ip6_tables.h
View File

@ -300,7 +300,7 @@ extern void ip6t_init(void) __init;
extern struct xt_table *ip6t_register_table(struct net *net,
const struct xt_table *table,
const struct ip6t_replace *repl);
extern void ip6t_unregister_table(struct xt_table *table);
extern void ip6t_unregister_table(struct net *net, struct xt_table *table);
extern unsigned int ip6t_do_table(struct sk_buff *skb,
unsigned int hook,
const struct net_device *in,

2
net/bridge/netfilter/ebtable_broute.c
View File

@ -71,7 +71,7 @@ static int __net_init broute_net_init(struct net *net)
static void __net_exit broute_net_exit(struct net *net)
{
ebt_unregister_table(net->xt.broute_table);
ebt_unregister_table(net, net->xt.broute_table);
}
static struct pernet_operations broute_net_ops = {

2
net/bridge/netfilter/ebtable_filter.c
View File

@ -107,7 +107,7 @@ static int __net_init frame_filter_net_init(struct net *net)
static void __net_exit frame_filter_net_exit(struct net *net)
{
ebt_unregister_table(net->xt.frame_filter);
ebt_unregister_table(net, net->xt.frame_filter);
}
static struct pernet_operations frame_filter_net_ops = {

2
net/bridge/netfilter/ebtable_nat.c
View File

@ -107,7 +107,7 @@ static int __net_init frame_nat_net_init(struct net *net)
static void __net_exit frame_nat_net_exit(struct net *net)
{
ebt_unregister_table(net->xt.frame_nat);
ebt_unregister_table(net, net->xt.frame_nat);
}
static struct pernet_operations frame_nat_net_ops = {

19
net/bridge/netfilter/ebtables.c
View File

@ -561,13 +561,14 @@ ebt_get_udc_positions(struct ebt_entry *e, struct ebt_table_info *newinfo,
}
static inline int
ebt_cleanup_match(struct ebt_entry_match *m, unsigned int *i)
ebt_cleanup_match(struct ebt_entry_match *m, struct net *net, unsigned int *i)
{
struct xt_mtdtor_param par;
if (i && (*i)-- == 0)
return 1;
par.net = net;
par.match = m->u.match;
par.matchinfo = m->data;
par.family = NFPROTO_BRIDGE;
@ -595,7 +596,7 @@ ebt_cleanup_watcher(struct ebt_entry_watcher *w, unsigned int *i)
}
static inline int
ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
ebt_cleanup_entry(struct ebt_entry *e, struct net *net, unsigned int *cnt)
{
struct xt_tgdtor_param par;
struct ebt_entry_target *t;
@ -606,7 +607,7 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
if (cnt && (*cnt)-- == 0)
return 1;
EBT_WATCHER_ITERATE(e, ebt_cleanup_watcher, NULL);
EBT_MATCH_ITERATE(e, ebt_cleanup_match, NULL);
EBT_MATCH_ITERATE(e, ebt_cleanup_match, net, NULL);
t = (struct ebt_entry_target *)(((char *)e) + e->target_offset);
par.target = t->u.target;
@ -731,7 +732,7 @@ ebt_check_entry(struct ebt_entry *e,
cleanup_watchers:
EBT_WATCHER_ITERATE(e, ebt_cleanup_watcher, &j);
cleanup_matches:
EBT_MATCH_ITERATE(e, ebt_cleanup_match, &i);
EBT_MATCH_ITERATE(e, ebt_cleanup_match, net, &i);
return ret;
}
@ -924,7 +925,7 @@ static int translate_table(struct net *net, char *name,
ebt_check_entry, net, newinfo, name, &i, cl_s, udc_cnt);
if (ret != 0) {
EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
ebt_cleanup_entry, &i);
ebt_cleanup_entry, net, &i);
}
vfree(cl_s);
return ret;
@ -1074,7 +1075,7 @@ static int do_replace(struct net *net, void __user *user, unsigned int len)
/* decrease module count and free resources */
EBT_ENTRY_ITERATE(table->entries, table->entries_size,
ebt_cleanup_entry, NULL);
ebt_cleanup_entry, net, NULL);
vfree(table->entries);
if (table->chainstack) {
@ -1091,7 +1092,7 @@ free_unlock:
mutex_unlock(&ebt_mutex);
free_iterate:
EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
ebt_cleanup_entry, NULL);
ebt_cleanup_entry, net, NULL);
free_counterstmp:
vfree(counterstmp);
/* can be initialized in translate_table() */
@ -1208,7 +1209,7 @@ out:
return ERR_PTR(ret);
}
void ebt_unregister_table(struct ebt_table *table)
void ebt_unregister_table(struct net *net, struct ebt_table *table)
{
int i;
@ -1220,7 +1221,7 @@ void ebt_unregister_table(struct ebt_table *table)
list_del(&table->list);
mutex_unlock(&ebt_mutex);
EBT_ENTRY_ITERATE(table->private->entries, table->private->entries_size,
ebt_cleanup_entry, NULL);
ebt_cleanup_entry, net, NULL);
if (table->private->nentries)
module_put(table->me);
vfree(table->private->entries);

25
net/ipv4/netfilter/ip_tables.c
View File

@ -553,13 +553,14 @@ mark_source_chains(struct xt_table_info *newinfo,
}
static int
cleanup_match(struct ipt_entry_match *m, unsigned int *i)
cleanup_match(struct ipt_entry_match *m, struct net *net, unsigned int *i)
{
struct xt_mtdtor_param par;
if (i && (*i)-- == 0)
return 1;
par.net = net;
par.match = m->u.kernel.match;
par.matchinfo = m->data;
par.family = NFPROTO_IPV4;
@ -705,7 +706,7 @@ find_check_entry(struct ipt_entry *e, struct net *net, const char *name,
err:
module_put(t->u.kernel.target->me);
cleanup_matches:
IPT_MATCH_ITERATE(e, cleanup_match, &j);
IPT_MATCH_ITERATE(e, cleanup_match, net, &j);
return ret;
}
@ -775,7 +776,7 @@ check_entry_size_and_hooks(struct ipt_entry *e,
}
static int
cleanup_entry(struct ipt_entry *e, unsigned int *i)
cleanup_entry(struct ipt_entry *e, struct net *net, unsigned int *i)
{
struct xt_tgdtor_param par;
struct ipt_entry_target *t;
@ -784,7 +785,7 @@ cleanup_entry(struct ipt_entry *e, unsigned int *i)
return 1;
/* Cleanup all matches */
IPT_MATCH_ITERATE(e, cleanup_match, NULL);
IPT_MATCH_ITERATE(e, cleanup_match, net, NULL);
t = ipt_get_target(e);
par.target = t->u.kernel.target;
@ -866,7 +867,7 @@ translate_table(struct net *net,
if (ret != 0) {
IPT_ENTRY_ITERATE(entry0, newinfo->size,
cleanup_entry, &i);
cleanup_entry, net, &i);
return ret;
}
@ -1260,7 +1261,7 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks,
/* Decrease module usage counts and free resource */
loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
IPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,
NULL);
net, NULL);
xt_free_table_info(oldinfo);
if (copy_to_user(counters_ptr, counters,
sizeof(struct xt_counters) * num_counters) != 0)
@ -1320,7 +1321,7 @@ do_replace(struct net *net, void __user *user, unsigned int len)
return 0;
free_newinfo_untrans:
IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
free_newinfo:
xt_free_table_info(newinfo);
return ret;
@ -1682,7 +1683,7 @@ compat_check_entry(struct ipt_entry *e, struct net *net, const char *name,
return 0;
cleanup_matches:
IPT_MATCH_ITERATE(e, cleanup_match, &j);
IPT_MATCH_ITERATE(e, cleanup_match, net, &j);
return ret;
}
@ -1782,7 +1783,7 @@ translate_compat_table(struct net *net,
j -= i;
COMPAT_IPT_ENTRY_ITERATE_CONTINUE(entry0, newinfo->size, i,
compat_release_entry, &j);
IPT_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, &i);
IPT_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, net, &i);
xt_free_table_info(newinfo);
return ret;
}
@ -1853,7 +1854,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
return 0;
free_newinfo_untrans:
IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
free_newinfo:
xt_free_table_info(newinfo);
return ret;
@ -2112,7 +2113,7 @@ out:
return ERR_PTR(ret);
}
void ipt_unregister_table(struct xt_table *table)
void ipt_unregister_table(struct net *net, struct xt_table *table)
{
struct xt_table_info *private;
void *loc_cpu_entry;
@ -2122,7 +2123,7 @@ void ipt_unregister_table(struct xt_table *table)
/* Decrease module usage counts and free resources */
loc_cpu_entry = private->entries[raw_smp_processor_id()];
IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL);
IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, net, NULL);
if (private->number > private->initial_entries)
module_put(table_owner);
xt_free_table_info(private);

2
net/ipv4/netfilter/iptable_filter.c
View File

@ -138,7 +138,7 @@ static int __net_init iptable_filter_net_init(struct net *net)
static void __net_exit iptable_filter_net_exit(struct net *net)
{
ipt_unregister_table(net->ipv4.iptable_filter);
ipt_unregister_table(net, net->ipv4.iptable_filter);
}
static struct pernet_operations iptable_filter_net_ops = {

2
net/ipv4/netfilter/iptable_mangle.c
View File

@ -208,7 +208,7 @@ static int __net_init iptable_mangle_net_init(struct net *net)
static void __net_exit iptable_mangle_net_exit(struct net *net)
{
ipt_unregister_table(net->ipv4.iptable_mangle);
ipt_unregister_table(net, net->ipv4.iptable_mangle);
}
static struct pernet_operations iptable_mangle_net_ops = {

2
net/ipv4/netfilter/iptable_raw.c
View File

@ -100,7 +100,7 @@ static int __net_init iptable_raw_net_init(struct net *net)
static void __net_exit iptable_raw_net_exit(struct net *net)
{
ipt_unregister_table(net->ipv4.iptable_raw);
ipt_unregister_table(net, net->ipv4.iptable_raw);
}
static struct pernet_operations iptable_raw_net_ops = {

2
net/ipv4/netfilter/iptable_security.c
View File

@ -138,7 +138,7 @@ static int __net_init iptable_security_net_init(struct net *net)
static void __net_exit iptable_security_net_exit(struct net *net)
{
ipt_unregister_table(net->ipv4.iptable_security);
ipt_unregister_table(net, net->ipv4.iptable_security);
}
static struct pernet_operations iptable_security_net_ops = {

2
net/ipv4/netfilter/nf_nat_rule.c
View File

@ -195,7 +195,7 @@ static int __net_init nf_nat_rule_net_init(struct net *net)
static void __net_exit nf_nat_rule_net_exit(struct net *net)
{
ipt_unregister_table(net->ipv4.nat_table);
ipt_unregister_table(net, net->ipv4.nat_table);
}
static struct pernet_operations nf_nat_rule_net_ops = {

37
net/ipv6/netfilter/ip6_tables.c
View File

@ -585,13 +585,14 @@ mark_source_chains(struct xt_table_info *newinfo,
}
static int
cleanup_match(struct ip6t_entry_match *m, unsigned int *i)
cleanup_match(struct ip6t_entry_match *m, struct net *net, unsigned int *i)
{
struct xt_mtdtor_param par;
if (i && (*i)-- == 0)
return 1;
par.net = net;
par.match = m->u.kernel.match;
par.matchinfo = m->data;
par.family = NFPROTO_IPV6;
@ -737,7 +738,7 @@ find_check_entry(struct ip6t_entry *e, struct net *net, const char *name,
err:
module_put(t->u.kernel.target->me);
cleanup_matches:
IP6T_MATCH_ITERATE(e, cleanup_match, &j);
IP6T_MATCH_ITERATE(e, cleanup_match, net, &j);
return ret;
}
@ -807,7 +808,7 @@ check_entry_size_and_hooks(struct ip6t_entry *e,
}
static int
cleanup_entry(struct ip6t_entry *e, unsigned int *i)
cleanup_entry(struct ip6t_entry *e, struct net *net, unsigned int *i)
{
struct xt_tgdtor_param par;
struct ip6t_entry_target *t;
@ -816,7 +817,7 @@ cleanup_entry(struct ip6t_entry *e, unsigned int *i)
return 1;
/* Cleanup all matches */
IP6T_MATCH_ITERATE(e, cleanup_match, NULL);
IP6T_MATCH_ITERATE(e, cleanup_match, net, NULL);
t = ip6t_get_target(e);
par.target = t->u.kernel.target;
@ -898,7 +899,7 @@ translate_table(struct net *net,
if (ret != 0) {
IP6T_ENTRY_ITERATE(entry0, newinfo->size,
cleanup_entry, &i);
cleanup_entry, net, &i);
return ret;
}
@ -1293,7 +1294,7 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks,
/* Decrease module usage counts and free resource */
loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
IP6T_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,
NULL);
net, NULL);
xt_free_table_info(oldinfo);
if (copy_to_user(counters_ptr, counters,
sizeof(struct xt_counters) * num_counters) != 0)
@ -1353,7 +1354,7 @@ do_replace(struct net *net, void __user *user, unsigned int len)
return 0;
free_newinfo_untrans:
IP6T_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
IP6T_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
free_newinfo:
xt_free_table_info(newinfo);
return ret;
@ -1692,14 +1693,15 @@ compat_copy_entry_from_user(struct compat_ip6t_entry *e, void **dstptr,
return ret;
}
static int compat_check_entry(struct ip6t_entry *e, const char *name,
unsigned int *i)
static int compat_check_entry(struct ip6t_entry *e, struct net *net,
const char *name, unsigned int *i)
{
unsigned int j;
int ret;
struct xt_mtchk_param mtpar;
j = 0;
mtpar.net = net;
mtpar.table = name;
mtpar.entryinfo = &e->ipv6;
mtpar.hook_mask = e->comefrom;
@ -1716,12 +1718,13 @@ static int compat_check_entry(struct ip6t_entry *e, const char *name,
return 0;
cleanup_matches:
IP6T_MATCH_ITERATE(e, cleanup_match, &j);
IP6T_MATCH_ITERATE(e, cleanup_match, net, &j);
return ret;
}
static int
translate_compat_table(const char *name,
translate_compat_table(struct net *net,
const char *name,
unsigned int valid_hooks,
struct xt_table_info **pinfo,
void **pentry0,
@ -1810,12 +1813,12 @@ translate_compat_table(const char *name,
i = 0;
ret = IP6T_ENTRY_ITERATE(entry1, newinfo->size, compat_check_entry,
name, &i);
net, name, &i);
if (ret) {
j -= i;
COMPAT_IP6T_ENTRY_ITERATE_CONTINUE(entry0, newinfo->size, i,
compat_release_entry, &j);
IP6T_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, &i);
IP6T_ENTRY_ITERATE(entry1, newinfo->size, cleanup_entry, net, &i);
xt_free_table_info(newinfo);
return ret;
}
@ -1870,7 +1873,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
goto free_newinfo;
}
ret = translate_compat_table(tmp.name, tmp.valid_hooks,
ret = translate_compat_table(net, tmp.name, tmp.valid_hooks,
&newinfo, &loc_cpu_entry, tmp.size,
tmp.num_entries, tmp.hook_entry,
tmp.underflow);
@ -1886,7 +1889,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
return 0;
free_newinfo_untrans:
IP6T_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
IP6T_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, net, NULL);
free_newinfo:
xt_free_table_info(newinfo);
return ret;
@ -2144,7 +2147,7 @@ out:
return ERR_PTR(ret);
}
void ip6t_unregister_table(struct xt_table *table)
void ip6t_unregister_table(struct net *net, struct xt_table *table)
{
struct xt_table_info *private;
void *loc_cpu_entry;
@ -2154,7 +2157,7 @@ void ip6t_unregister_table(struct xt_table *table)
/* Decrease module usage counts and free resources */
loc_cpu_entry = private->entries[raw_smp_processor_id()];
IP6T_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL);
IP6T_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, net, NULL);
if (private->number > private->initial_entries)
module_put(table_owner);
xt_free_table_info(private);

2
net/ipv6/netfilter/ip6table_filter.c
View File

@ -131,7 +131,7 @@ static int __net_init ip6table_filter_net_init(struct net *net)
static void __net_exit ip6table_filter_net_exit(struct net *net)
{
ip6t_unregister_table(net->ipv6.ip6table_filter);
ip6t_unregister_table(net, net->ipv6.ip6table_filter);
}
static struct pernet_operations ip6table_filter_net_ops = {

2
net/ipv6/netfilter/ip6table_mangle.c
View File

@ -182,7 +182,7 @@ static int __net_init ip6table_mangle_net_init(struct net *net)
static void __net_exit ip6table_mangle_net_exit(struct net *net)
{
ip6t_unregister_table(net->ipv6.ip6table_mangle);
ip6t_unregister_table(net, net->ipv6.ip6table_mangle);
}
static struct pernet_operations ip6table_mangle_net_ops = {

2
net/ipv6/netfilter/ip6table_raw.c
View File

@ -94,7 +94,7 @@ static int __net_init ip6table_raw_net_init(struct net *net)
static void __net_exit ip6table_raw_net_exit(struct net *net)
{
ip6t_unregister_table(net->ipv6.ip6table_raw);
ip6t_unregister_table(net, net->ipv6.ip6table_raw);
}
static struct pernet_operations ip6table_raw_net_ops = {

2
net/ipv6/netfilter/ip6table_security.c
View File

@ -134,7 +134,7 @@ static int __net_init ip6table_security_net_init(struct net *net)
static void __net_exit ip6table_security_net_exit(struct net *net)
{
ip6t_unregister_table(net->ipv6.ip6table_security);
ip6t_unregister_table(net, net->ipv6.ip6table_security);
}
static struct pernet_operations ip6table_security_net_ops = {