microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

[NETFILTER]: Kill lockhelp.h 

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-06-21 14:01:30 -07:00 коммит произвёл David S. Miller
Родитель c9e3e8b695
Коммит e45b1be8bc
23 изменённых файлов: 160 добавлений и 302 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

3
include/linux/netfilter_ipv4/ip_conntrack_core.h
Просмотреть файл

@ -1,7 +1,6 @@
#ifndef _IP_CONNTRACK_CORE_H
#define _IP_CONNTRACK_CORE_H
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4/lockhelp.h>
/* This header is used to share core functionality between the
standalone connection tracking module, and the compatibility layer's use
@ -47,6 +46,6 @@ static inline int ip_conntrack_confirm(struct sk_buff **pskb)
extern struct list_head *ip_conntrack_hash;
extern struct list_head ip_conntrack_expect_list;
DECLARE_RWLOCK_EXTERN(ip_conntrack_lock);
extern rwlock_t ip_conntrack_lock;
#endif /* _IP_CONNTRACK_CORE_H */

3
include/linux/netfilter_ipv4/ip_nat.h
Просмотреть файл

@ -50,10 +50,9 @@ struct ip_nat_multi_range_compat
#ifdef __KERNEL__
#include <linux/list.h>
#include <linux/netfilter_ipv4/lockhelp.h>
/* Protects NAT hash tables, and NAT-private part of conntracks. */
DECLARE_RWLOCK_EXTERN(ip_nat_lock);
extern rwlock_t ip_nat_lock;
/* The structure embedded in the conntrack structure. */
struct ip_nat_info

1
include/linux/netfilter_ipv4/listhelp.h
Просмотреть файл

@ -2,7 +2,6 @@
#define _LISTHELP_H
#include <linux/config.h>
#include <linux/list.h>
#include <linux/netfilter_ipv4/lockhelp.h>
/* Header to do more comprehensive job than linux/list.h; assume list
is first entry in structure. */

129
include/linux/netfilter_ipv4/lockhelp.h
Просмотреть файл

@ -1,129 +0,0 @@
#ifndef _LOCKHELP_H
#define _LOCKHELP_H
#include <linux/config.h>
#include <linux/spinlock.h>
#include <asm/atomic.h>
#include <linux/interrupt.h>
#include <linux/smp.h>
/* Header to do help in lock debugging. */
#ifdef CONFIG_NETFILTER_DEBUG
struct spinlock_debug
{
spinlock_t l;
atomic_t locked_by;
};
struct rwlock_debug
{
rwlock_t l;
long read_locked_map;
long write_locked_map;
};
#define DECLARE_LOCK(l) \
struct spinlock_debug l = { SPIN_LOCK_UNLOCKED, ATOMIC_INIT(-1) }
#define DECLARE_LOCK_EXTERN(l) \
extern struct spinlock_debug l
#define DECLARE_RWLOCK(l) \
struct rwlock_debug l = { RW_LOCK_UNLOCKED, 0, 0 }
#define DECLARE_RWLOCK_EXTERN(l) \
extern struct rwlock_debug l
#define MUST_BE_LOCKED(l) \
do { if (atomic_read(&(l)->locked_by) != smp_processor_id()) \
printk("ASSERT %s:%u %s unlocked\n", __FILE__, __LINE__, #l); \
} while(0)
#define MUST_BE_UNLOCKED(l) \
do { if (atomic_read(&(l)->locked_by) == smp_processor_id()) \
printk("ASSERT %s:%u %s locked\n", __FILE__, __LINE__, #l); \
} while(0)
/* Write locked OK as well. */
#define MUST_BE_READ_LOCKED(l) \
do { if (!((l)->read_locked_map & (1UL << smp_processor_id())) \
&& !((l)->write_locked_map & (1UL << smp_processor_id()))) \
printk("ASSERT %s:%u %s not readlocked\n", __FILE__, __LINE__, #l); \
} while(0)
#define MUST_BE_WRITE_LOCKED(l) \
do { if (!((l)->write_locked_map & (1UL << smp_processor_id()))) \
printk("ASSERT %s:%u %s not writelocked\n", __FILE__, __LINE__, #l); \
} while(0)
#define MUST_BE_READ_WRITE_UNLOCKED(l) \
do { if ((l)->read_locked_map & (1UL << smp_processor_id())) \
printk("ASSERT %s:%u %s readlocked\n", __FILE__, __LINE__, #l); \
else if ((l)->write_locked_map & (1UL << smp_processor_id())) \
printk("ASSERT %s:%u %s writelocked\n", __FILE__, __LINE__, #l); \
} while(0)
#define LOCK_BH(lk) \
do { \
MUST_BE_UNLOCKED(lk); \
spin_lock_bh(&(lk)->l); \
atomic_set(&(lk)->locked_by, smp_processor_id()); \
} while(0)
#define UNLOCK_BH(lk) \
do { \
MUST_BE_LOCKED(lk); \
atomic_set(&(lk)->locked_by, -1); \
spin_unlock_bh(&(lk)->l); \
} while(0)
#define READ_LOCK(lk) \
do { \
MUST_BE_READ_WRITE_UNLOCKED(lk); \
read_lock_bh(&(lk)->l); \
set_bit(smp_processor_id(), &(lk)->read_locked_map); \
} while(0)
#define WRITE_LOCK(lk) \
do { \
MUST_BE_READ_WRITE_UNLOCKED(lk); \
write_lock_bh(&(lk)->l); \
set_bit(smp_processor_id(), &(lk)->write_locked_map); \
} while(0)
#define READ_UNLOCK(lk) \
do { \
if (!((lk)->read_locked_map & (1UL << smp_processor_id()))) \
printk("ASSERT: %s:%u %s not readlocked\n", \
__FILE__, __LINE__, #lk); \
clear_bit(smp_processor_id(), &(lk)->read_locked_map); \
read_unlock_bh(&(lk)->l); \
} while(0)
#define WRITE_UNLOCK(lk) \
do { \
MUST_BE_WRITE_LOCKED(lk); \
clear_bit(smp_processor_id(), &(lk)->write_locked_map); \
write_unlock_bh(&(lk)->l); \
} while(0)
#else
#define DECLARE_LOCK(l) spinlock_t l = SPIN_LOCK_UNLOCKED
#define DECLARE_LOCK_EXTERN(l) extern spinlock_t l
#define DECLARE_RWLOCK(l) rwlock_t l = RW_LOCK_UNLOCKED
#define DECLARE_RWLOCK_EXTERN(l) extern rwlock_t l
#define MUST_BE_LOCKED(l)
#define MUST_BE_UNLOCKED(l)
#define MUST_BE_READ_LOCKED(l)
#define MUST_BE_WRITE_LOCKED(l)
#define MUST_BE_READ_WRITE_UNLOCKED(l)
#define LOCK_BH(l) spin_lock_bh(l)
#define UNLOCK_BH(l) spin_unlock_bh(l)
#define READ_LOCK(l) read_lock_bh(l)
#define WRITE_LOCK(l) write_lock_bh(l)
#define READ_UNLOCK(l) read_unlock_bh(l)
#define WRITE_UNLOCK(l) write_unlock_bh(l)
#endif /*CONFIG_NETFILTER_DEBUG*/
#endif /* _LOCKHELP_H */

1
net/ipv4/netfilter/arp_tables.c
Просмотреть файл

@ -60,7 +60,6 @@ static DECLARE_MUTEX(arpt_mutex);
#define ASSERT_READ_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
#define ASSERT_WRITE_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/listhelp.h>
struct arpt_table_info {

7
net/ipv4/netfilter/ip_conntrack_amanda.c
Просмотреть файл

@ -26,7 +26,6 @@
#include <net/checksum.h>
#include <net/udp.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
#include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
@ -42,7 +41,7 @@ static char *conns[] = { "DATA ", "MESG ", "INDEX " };
/* This is slow, but it's simple. --RR */
static char amanda_buffer[65536];
static DECLARE_LOCK(amanda_buffer_lock);
static DEFINE_SPINLOCK(amanda_buffer_lock);
unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
enum ip_conntrack_info ctinfo,
@ -76,7 +75,7 @@ static int help(struct sk_buff **pskb,
return NF_ACCEPT;
}
LOCK_BH(&amanda_buffer_lock);
spin_lock_bh(&amanda_buffer_lock);
skb_copy_bits(*pskb, dataoff, amanda_buffer, (*pskb)->len - dataoff);
data = amanda_buffer;
data_limit = amanda_buffer + (*pskb)->len - dataoff;
@ -134,7 +133,7 @@ static int help(struct sk_buff **pskb,
}
out:
UNLOCK_BH(&amanda_buffer_lock);
spin_unlock_bh(&amanda_buffer_lock);
return ret;
}

84
net/ipv4/netfilter/ip_conntrack_core.c
Просмотреть файл

@ -38,10 +38,10 @@
#include <linux/percpu.h>
#include <linux/moduleparam.h>
/* This rwlock protects the main hash table, protocol/helper/expected
/* ip_conntrack_lock protects the main hash table, protocol/helper/expected
registrations, conntrack timers*/
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@ -57,7 +57,7 @@
#define DEBUGP(format, args...)
#endif
DECLARE_RWLOCK(ip_conntrack_lock);
DEFINE_RWLOCK(ip_conntrack_lock);
/* ip_conntrack_standalone needs this */
atomic_t ip_conntrack_count = ATOMIC_INIT(0);
@ -147,7 +147,7 @@ static void destroy_expect(struct ip_conntrack_expect *exp)
static void unlink_expect(struct ip_conntrack_expect *exp)
{
MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
ASSERT_WRITE_LOCK(&ip_conntrack_lock);
list_del(&exp->list);
/* Logically in destroy_expect, but we hold the lock here. */
exp->master->expecting--;
@ -157,9 +157,9 @@ static void expectation_timed_out(unsigned long ul_expect)
{
struct ip_conntrack_expect *exp = (void *)ul_expect;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
unlink_expect(exp);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
destroy_expect(exp);
}
@ -209,7 +209,7 @@ clean_from_lists(struct ip_conntrack *ct)
unsigned int ho, hr;
DEBUGP("clean_from_lists(%p)\n", ct);
MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
ASSERT_WRITE_LOCK(&ip_conntrack_lock);
ho = hash_conntrack(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
hr = hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
@ -240,7 +240,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
if (ip_conntrack_destroyed)
ip_conntrack_destroyed(ct);
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* Expectations will have been removed in clean_from_lists,
* except TFTP can create an expectation on the first packet,
* before connection is in the list, so we need to clean here,
@ -254,7 +254,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
}
CONNTRACK_STAT_INC(delete);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
if (ct->master)
ip_conntrack_put(ct->master);
@ -268,12 +268,12 @@ static void death_by_timeout(unsigned long ul_conntrack)
{
struct ip_conntrack *ct = (void *)ul_conntrack;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* Inside lock so preempt is disabled on module removal path.
* Otherwise we can get spurious warnings. */
CONNTRACK_STAT_INC(delete_list);
clean_from_lists(ct);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
ip_conntrack_put(ct);
}
@ -282,7 +282,7 @@ conntrack_tuple_cmp(const struct ip_conntrack_tuple_hash *i,
const struct ip_conntrack_tuple *tuple,
const struct ip_conntrack *ignored_conntrack)
{
MUST_BE_READ_LOCKED(&ip_conntrack_lock);
ASSERT_READ_LOCK(&ip_conntrack_lock);
return tuplehash_to_ctrack(i) != ignored_conntrack
&& ip_ct_tuple_equal(tuple, &i->tuple);
}
@ -294,7 +294,7 @@ __ip_conntrack_find(const struct ip_conntrack_tuple *tuple,
struct ip_conntrack_tuple_hash *h;
unsigned int hash = hash_conntrack(tuple);
MUST_BE_READ_LOCKED(&ip_conntrack_lock);
ASSERT_READ_LOCK(&ip_conntrack_lock);
list_for_each_entry(h, &ip_conntrack_hash[hash], list) {
if (conntrack_tuple_cmp(h, tuple, ignored_conntrack)) {
CONNTRACK_STAT_INC(found);
@ -313,11 +313,11 @@ ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
{
struct ip_conntrack_tuple_hash *h;
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
h = __ip_conntrack_find(tuple, ignored_conntrack);
if (h)
atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
return h;
}
@ -352,7 +352,7 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
IP_NF_ASSERT(!is_confirmed(ct));
DEBUGP("Confirming conntrack %p\n", ct);
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* See if there's one in the list already, including reverse:
NAT could have grabbed it without realizing, since we're
@ -380,12 +380,12 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
atomic_inc(&ct->ct_general.use);
set_bit(IPS_CONFIRMED_BIT, &ct->status);
CONNTRACK_STAT_INC(insert);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return NF_ACCEPT;
}
CONNTRACK_STAT_INC(insert_failed);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return NF_DROP;
}
@ -398,9 +398,9 @@ ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
{
struct ip_conntrack_tuple_hash *h;
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
h = __ip_conntrack_find(tuple, ignored_conntrack);
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
return h != NULL;
}
@ -419,13 +419,13 @@ static int early_drop(struct list_head *chain)
struct ip_conntrack *ct = NULL;
int dropped = 0;
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
h = LIST_FIND_B(chain, unreplied, struct ip_conntrack_tuple_hash *);
if (h) {
ct = tuplehash_to_ctrack(h);
atomic_inc(&ct->ct_general.use);
}
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
if (!ct)
return dropped;
@ -508,7 +508,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
conntrack->timeout.data = (unsigned long)conntrack;
conntrack->timeout.function = death_by_timeout;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
exp = find_expectation(tuple);
if (exp) {
@ -532,7 +532,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
atomic_inc(&ip_conntrack_count);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
if (exp) {
if (exp->expectfn)
@ -723,17 +723,17 @@ void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp)
{
struct ip_conntrack_expect *i;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* choose the the oldest expectation to evict */
list_for_each_entry_reverse(i, &ip_conntrack_expect_list, list) {
if (expect_matches(i, exp) && del_timer(&i->timeout)) {
unlink_expect(i);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
destroy_expect(i);
return;
}
}
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
}
struct ip_conntrack_expect *ip_conntrack_expect_alloc(void)
@ -808,7 +808,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
DEBUGP("mask: "); DUMP_TUPLE(&expect->mask);
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
list_for_each_entry(i, &ip_conntrack_expect_list, list) {
if (expect_matches(i, expect)) {
/* Refresh timer: if it's dying, ignore.. */
@ -832,7 +832,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
ip_conntrack_expect_insert(expect);
ret = 0;
out:
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return ret;
}
@ -841,7 +841,7 @@ out:
void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
const struct ip_conntrack_tuple *newreply)
{
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* Should be unconfirmed, so not in hash table yet */
IP_NF_ASSERT(!is_confirmed(conntrack));
@ -851,15 +851,15 @@ void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *newreply;
if (!conntrack->master && conntrack->expecting == 0)
conntrack->helper = ip_ct_find_helper(newreply);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
}
int ip_conntrack_helper_register(struct ip_conntrack_helper *me)
{
BUG_ON(me->timeout == 0);
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
list_prepend(&helpers, me);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return 0;
}
@ -878,7 +878,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
struct ip_conntrack_expect *exp, *tmp;
/* Need write lock here, to delete helper. */
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
LIST_DELETE(&helpers, me);
/* Get rid of expectations */
@ -893,7 +893,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
for (i = 0; i < ip_conntrack_htable_size; i++)
LIST_FIND_W(&ip_conntrack_hash[i], unhelp,
struct ip_conntrack_tuple_hash *, me);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
/* Someone could be still looking at the helper in a bh. */
synchronize_net();
@ -925,14 +925,14 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
ct->timeout.expires = extra_jiffies;
ct_add_counters(ct, ctinfo, skb);
} else {
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
/* Need del_timer for race avoidance (may already be dying). */
if (del_timer(&ct->timeout)) {
ct->timeout.expires = jiffies + extra_jiffies;
add_timer(&ct->timeout);
}
ct_add_counters(ct, ctinfo, skb);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
}
}
@ -997,7 +997,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
{
struct ip_conntrack_tuple_hash *h = NULL;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
for (; *bucket < ip_conntrack_htable_size; (*bucket)++) {
h = LIST_FIND_W(&ip_conntrack_hash[*bucket], do_iter,
struct ip_conntrack_tuple_hash *, iter, data);
@ -1009,7 +1009,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
struct ip_conntrack_tuple_hash *, iter, data);
if (h)
atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return h;
}
@ -1201,14 +1201,14 @@ int __init ip_conntrack_init(void)
}
/* Don't NEED lock here, but good form anyway. */
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
for (i = 0; i < MAX_IP_CT_PROTO; i++)
ip_ct_protos[i] = &ip_conntrack_generic_protocol;
/* Sew in builtin protocols. */
ip_ct_protos[IPPROTO_TCP] = &ip_conntrack_protocol_tcp;
ip_ct_protos[IPPROTO_UDP] = &ip_conntrack_protocol_udp;
ip_ct_protos[IPPROTO_ICMP] = &ip_conntrack_protocol_icmp;
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
for (i = 0; i < ip_conntrack_htable_size; i++)
INIT_LIST_HEAD(&ip_conntrack_hash[i]);

7
net/ipv4/netfilter/ip_conntrack_ftp.c
Просмотреть файл

@ -16,7 +16,6 @@
#include <net/checksum.h>
#include <net/tcp.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
#include <linux/moduleparam.h>
@ -28,7 +27,7 @@ MODULE_DESCRIPTION("ftp connection tracking helper");
/* This is slow, but it's simple. --RR */
static char ftp_buffer[65536];
static DECLARE_LOCK(ip_ftp_lock);
static DEFINE_SPINLOCK(ip_ftp_lock);
#define MAX_PORTS 8
static int ports[MAX_PORTS];
@ -319,7 +318,7 @@ static int help(struct sk_buff **pskb,
}
datalen = (*pskb)->len - dataoff;
LOCK_BH(&ip_ftp_lock);
spin_lock_bh(&ip_ftp_lock);
fb_ptr = skb_header_pointer(*pskb, dataoff,
(*pskb)->len - dataoff, ftp_buffer);
BUG_ON(fb_ptr == NULL);
@ -442,7 +441,7 @@ out_update_nl:
if (ends_in_nl)
update_nl_seq(seq, ct_ftp_info,dir);
out:
UNLOCK_BH(&ip_ftp_lock);
spin_unlock_bh(&ip_ftp_lock);
return ret;
}

7
net/ipv4/netfilter/ip_conntrack_irc.c
Просмотреть файл

@ -29,7 +29,6 @@
#include <net/checksum.h>
#include <net/tcp.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
#include <linux/moduleparam.h>
@ -41,7 +40,7 @@ static int max_dcc_channels = 8;
static unsigned int dcc_timeout = 300;
/* This is slow, but it's simple. --RR */
static char irc_buffer[65536];
static DECLARE_LOCK(irc_buffer_lock);
static DEFINE_SPINLOCK(irc_buffer_lock);
unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
enum ip_conntrack_info ctinfo,
@ -141,7 +140,7 @@ static int help(struct sk_buff **pskb,
if (dataoff >= (*pskb)->len)
return NF_ACCEPT;
LOCK_BH(&irc_buffer_lock);
spin_lock_bh(&irc_buffer_lock);
ib_ptr = skb_header_pointer(*pskb, dataoff,
(*pskb)->len - dataoff, irc_buffer);
BUG_ON(ib_ptr == NULL);
@ -237,7 +236,7 @@ static int help(struct sk_buff **pskb,
} /* while data < ... */
out:
UNLOCK_BH(&irc_buffer_lock);
spin_unlock_bh(&irc_buffer_lock);
return ret;
}

23
net/ipv4/netfilter/ip_conntrack_proto_sctp.c
Просмотреть файл

@ -26,7 +26,6 @@
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#if 0
#define DEBUGP(format, ...) printk(format, ## __VA_ARGS__)
@ -35,7 +34,7 @@
#endif
/* Protects conntrack->proto.sctp */
static DECLARE_RWLOCK(sctp_lock);
static DEFINE_RWLOCK(sctp_lock);
/* FIXME: Examine ipfilter's timeouts and conntrack transitions more
closely. They're more complex. --RR
@ -199,9 +198,9 @@ static int sctp_print_conntrack(struct seq_file *s,
DEBUGP(__FUNCTION__);
DEBUGP("\n");
READ_LOCK(&sctp_lock);
read_lock_bh(&sctp_lock);
state = conntrack->proto.sctp.state;
READ_UNLOCK(&sctp_lock);
read_unlock_bh(&sctp_lock);
return seq_printf(s, "%s ", sctp_conntrack_names[state]);
}
@ -343,13 +342,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
oldsctpstate = newconntrack = SCTP_CONNTRACK_MAX;
for_each_sctp_chunk (skb, sch, _sch, offset, count) {
WRITE_LOCK(&sctp_lock);
write_lock_bh(&sctp_lock);
/* Special cases of Verification tag check (Sec 8.5.1) */
if (sch->type == SCTP_CID_INIT) {
/* Sec 8.5.1 (A) */
if (sh->vtag != 0) {
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
} else if (sch->type == SCTP_CID_ABORT) {
@ -357,7 +356,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])
&& !(sh->vtag == conntrack->proto.sctp.vtag
[1 - CTINFO2DIR(ctinfo)])) {
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
} else if (sch->type == SCTP_CID_SHUTDOWN_COMPLETE) {
@ -366,13 +365,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
&& !(sh->vtag == conntrack->proto.sctp.vtag
[1 - CTINFO2DIR(ctinfo)]
&& (sch->flags & 1))) {
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
} else if (sch->type == SCTP_CID_COOKIE_ECHO) {
/* Sec 8.5.1 (D) */
if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])) {
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
}
@ -384,7 +383,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
if (newconntrack == SCTP_CONNTRACK_MAX) {
DEBUGP("ip_conntrack_sctp: Invalid dir=%i ctype=%u conntrack=%u\n",
CTINFO2DIR(ctinfo), sch->type, oldsctpstate);
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
@ -396,7 +395,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
sizeof(_inithdr), &_inithdr);
if (ih == NULL) {
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
return -1;
}
DEBUGP("Setting vtag %x for dir %d\n",
@ -405,7 +404,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
}
conntrack->proto.sctp.state = newconntrack;
WRITE_UNLOCK(&sctp_lock);
write_unlock_bh(&sctp_lock);
}
ip_ct_refresh_acct(conntrack, ctinfo, skb, *sctp_timeouts[newconntrack]);

27
net/ipv4/netfilter/ip_conntrack_proto_tcp.c
Просмотреть файл

@ -36,7 +36,6 @@
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#if 0
#define DEBUGP printk
@ -46,7 +45,7 @@
#endif
/* Protects conntrack->proto.tcp */
static DECLARE_RWLOCK(tcp_lock);
static DEFINE_RWLOCK(tcp_lock);
/* "Be conservative in what you do,
be liberal in what you accept from others."
@ -330,9 +329,9 @@ static int tcp_print_conntrack(struct seq_file *s,
{
enum tcp_conntrack state;
READ_LOCK(&tcp_lock);
read_lock_bh(&tcp_lock);
state = conntrack->proto.tcp.state;
READ_UNLOCK(&tcp_lock);
read_unlock_bh(&tcp_lock);
return seq_printf(s, "%s ", tcp_conntrack_names[state]);
}
@ -738,14 +737,14 @@ void ip_conntrack_tcp_update(struct sk_buff *skb,
end = segment_seq_plus_len(ntohl(tcph->seq), skb->len, iph, tcph);
WRITE_LOCK(&tcp_lock);
write_lock_bh(&tcp_lock);
/*
* We have to worry for the ack in the reply packet only...
*/
if (after(end, conntrack->proto.tcp.seen[dir].td_end))
conntrack->proto.tcp.seen[dir].td_end = end;
conntrack->proto.tcp.last_end = end;
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
DEBUGP("tcp_update: sender end=%u maxend=%u maxwin=%u scale=%i "
"receiver end=%u maxend=%u maxwin=%u scale=%i\n",
sender->td_end, sender->td_maxend, sender->td_maxwin,
@ -857,7 +856,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
sizeof(_tcph), &_tcph);
BUG_ON(th == NULL);
WRITE_LOCK(&tcp_lock);
write_lock_bh(&tcp_lock);
old_state = conntrack->proto.tcp.state;
dir = CTINFO2DIR(ctinfo);
index = get_conntrack_index(th);
@ -879,7 +878,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
* that the client cannot but retransmit its SYN and
* thus initiate a clean new session.
*/
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(PF_INET, 0, skb, NULL, NULL,
"ip_ct_tcp: killing out of sync session ");
@ -894,7 +893,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
conntrack->proto.tcp.last_end =
segment_seq_plus_len(ntohl(th->seq), skb->len, iph, th);
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(PF_INET, 0, skb, NULL, NULL,
"ip_ct_tcp: invalid packet ignored ");
@ -904,7 +903,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
DEBUGP("ip_ct_tcp: Invalid dir=%i index=%u ostate=%u\n",
dir, get_conntrack_index(th),
old_state);
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(PF_INET, 0, skb, NULL, NULL,
"ip_ct_tcp: invalid state ");
@ -918,13 +917,13 @@ static int tcp_packet(struct ip_conntrack *conntrack,
conntrack->proto.tcp.seen[dir].td_end)) {
/* Attempt to reopen a closed connection.
* Delete this connection and look up again. */
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (del_timer(&conntrack->timeout))
conntrack->timeout.function((unsigned long)
conntrack);
return -NF_REPEAT;
} else {
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(PF_INET, 0, skb, NULL, NULL,
"ip_ct_tcp: invalid SYN");
@ -949,7 +948,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
if (!tcp_in_window(&conntrack->proto.tcp, dir, index,
skb, iph, th)) {
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
return -NF_ACCEPT;
}
in_window:
@ -972,7 +971,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
timeout = conntrack->proto.tcp.retrans >= ip_ct_tcp_max_retrans
&& *tcp_timeouts[new_state] > ip_ct_tcp_timeout_max_retrans
? ip_ct_tcp_timeout_max_retrans : *tcp_timeouts[new_state];
WRITE_UNLOCK(&tcp_lock);
write_unlock_bh(&tcp_lock);
if (!test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
/* If only reply is a RST, we can consider ourselves not to

22
net/ipv4/netfilter/ip_conntrack_standalone.c
Просмотреть файл

@ -28,8 +28,8 @@
#include <net/checksum.h>
#include <net/ip.h>
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@ -119,7 +119,7 @@ static struct list_head *ct_get_idx(struct seq_file *seq, loff_t pos)
static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
{
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
return ct_get_idx(seq, *pos);
}
@ -131,7 +131,7 @@ static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
static void ct_seq_stop(struct seq_file *s, void *v)
{
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
}
static int ct_seq_show(struct seq_file *s, void *v)
@ -140,7 +140,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
const struct ip_conntrack *conntrack = tuplehash_to_ctrack(hash);
struct ip_conntrack_protocol *proto;
MUST_BE_READ_LOCKED(&ip_conntrack_lock);
ASSERT_READ_LOCK(&ip_conntrack_lock);
IP_NF_ASSERT(conntrack);
/* we only want to print DIR_ORIGINAL */
@ -239,7 +239,7 @@ static void *exp_seq_start(struct seq_file *s, loff_t *pos)
/* strange seq_file api calls stop even if we fail,
* thus we need to grab lock since stop unlocks */
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
if (list_empty(e))
return NULL;
@ -267,7 +267,7 @@ static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
static void exp_seq_stop(struct seq_file *s, void *v)
{
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
}
static int exp_seq_show(struct seq_file *s, void *v)
@ -921,22 +921,22 @@ int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
{
int ret = 0;
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
ret = -EBUSY;
goto out;
}
ip_ct_protos[proto->proto] = proto;
out:
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
return ret;
}
void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
{
WRITE_LOCK(&ip_conntrack_lock);
write_lock_bh(&ip_conntrack_lock);
ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
WRITE_UNLOCK(&ip_conntrack_lock);
write_unlock_bh(&ip_conntrack_lock);
/* Somebody could be still looking at the proto in bh. */
synchronize_net();

32
net/ipv4/netfilter/ip_nat_core.c
Просмотреть файл

@ -22,8 +22,8 @@
#include <linux/udp.h>
#include <linux/jhash.h>
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_core.h>
@ -41,7 +41,7 @@
#define DEBUGP(format, args...)
#endif
DECLARE_RWLOCK(ip_nat_lock);
DEFINE_RWLOCK(ip_nat_lock);
/* Calculated at init based on memory size */
static unsigned int ip_nat_htable_size;
@ -65,9 +65,9 @@ static void ip_nat_cleanup_conntrack(struct ip_conntrack *conn)
if (!(conn->status & IPS_NAT_DONE_MASK))
return;
WRITE_LOCK(&ip_nat_lock);
write_lock_bh(&ip_nat_lock);
list_del(&conn->nat.info.bysource);
WRITE_UNLOCK(&ip_nat_lock);
write_unlock_bh(&ip_nat_lock);
}
/* We do checksum mangling, so if they were wrong before they're still
@ -142,7 +142,7 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
unsigned int h = hash_by_src(tuple);
struct ip_conntrack *ct;
READ_LOCK(&ip_nat_lock);
read_lock_bh(&ip_nat_lock);
list_for_each_entry(ct, &bysource[h], nat.info.bysource) {
if (same_src(ct, tuple)) {
/* Copy source part from reply tuple. */
@ -151,12 +151,12 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
result->dst = tuple->dst;
if (in_range(result, range)) {
READ_UNLOCK(&ip_nat_lock);
read_unlock_bh(&ip_nat_lock);
return 1;
}
}
}
READ_UNLOCK(&ip_nat_lock);
read_unlock_bh(&ip_nat_lock);
return 0;
}
@ -297,9 +297,9 @@ ip_nat_setup_info(struct ip_conntrack *conntrack,
unsigned int srchash
= hash_by_src(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
.tuple);
WRITE_LOCK(&ip_nat_lock);
write_lock_bh(&ip_nat_lock);
list_add(&info->bysource, &bysource[srchash]);
WRITE_UNLOCK(&ip_nat_lock);
write_unlock_bh(&ip_nat_lock);
}
/* It's done. */
@ -474,23 +474,23 @@ int ip_nat_protocol_register(struct ip_nat_protocol *proto)
{
int ret = 0;
WRITE_LOCK(&ip_nat_lock);
write_lock_bh(&ip_nat_lock);
if (ip_nat_protos[proto->protonum] != &ip_nat_unknown_protocol) {
ret = -EBUSY;
goto out;
}
ip_nat_protos[proto->protonum] = proto;
out:
WRITE_UNLOCK(&ip_nat_lock);
write_unlock_bh(&ip_nat_lock);
return ret;
}
/* Noone stores the protocol anywhere; simply delete it. */
void ip_nat_protocol_unregister(struct ip_nat_protocol *proto)
{
WRITE_LOCK(&ip_nat_lock);
write_lock_bh(&ip_nat_lock);
ip_nat_protos[proto->protonum] = &ip_nat_unknown_protocol;
WRITE_UNLOCK(&ip_nat_lock);
write_unlock_bh(&ip_nat_lock);
/* Someone could be still looking at the proto in a bh. */
synchronize_net();
@ -509,13 +509,13 @@ int __init ip_nat_init(void)
return -ENOMEM;
/* Sew in builtin protocols. */
WRITE_LOCK(&ip_nat_lock);
write_lock_bh(&ip_nat_lock);
for (i = 0; i < MAX_IP_NAT_PROTO; i++)
ip_nat_protos[i] = &ip_nat_unknown_protocol;
ip_nat_protos[IPPROTO_TCP] = &ip_nat_protocol_tcp;
ip_nat_protos[IPPROTO_UDP] = &ip_nat_protocol_udp;
ip_nat_protos[IPPROTO_ICMP] = &ip_nat_protocol_icmp;
WRITE_UNLOCK(&ip_nat_lock);
write_unlock_bh(&ip_nat_lock);
for (i = 0; i < ip_nat_htable_size; i++) {
INIT_LIST_HEAD(&bysource[i]);

10
net/ipv4/netfilter/ip_nat_helper.c
Просмотреть файл

@ -28,8 +28,8 @@
#include <net/tcp.h>
#include <net/udp.h>
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
@ -47,7 +47,7 @@
#define DUMP_OFFSET(x)
#endif
static DECLARE_LOCK(ip_nat_seqofs_lock);
static DEFINE_SPINLOCK(ip_nat_seqofs_lock);
/* Setup TCP sequence correction given this change at this sequence */
static inline void
@ -70,7 +70,7 @@ adjust_tcp_sequence(u32 seq,
DEBUGP("ip_nat_resize_packet: Seq_offset before: ");
DUMP_OFFSET(this_way);
LOCK_BH(&ip_nat_seqofs_lock);
spin_lock_bh(&ip_nat_seqofs_lock);
/* SYN adjust. If it's uninitialized, or this is after last
* correction, record it: we don't handle more than one
@ -82,7 +82,7 @@ adjust_tcp_sequence(u32 seq,
this_way->offset_before = this_way->offset_after;
this_way->offset_after += sizediff;
}
UNLOCK_BH(&ip_nat_seqofs_lock);
spin_unlock_bh(&ip_nat_seqofs_lock);
DEBUGP("ip_nat_resize_packet: Seq_offset after: ");
DUMP_OFFSET(this_way);

4
net/ipv4/netfilter/ip_nat_rule.c
Просмотреть файл

@ -19,8 +19,8 @@
#include <net/route.h>
#include <linux/bitops.h>
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ip_nat.h>

5
net/ipv4/netfilter/ip_nat_standalone.c
Просмотреть файл

@ -31,8 +31,8 @@
#include <net/checksum.h>
#include <linux/spinlock.h>
#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/ip_nat.h>
#include <linux/netfilter_ipv4/ip_nat_rule.h>
@ -373,7 +373,6 @@ static int init_or_cleanup(int init)
cleanup_rule_init:
ip_nat_rule_cleanup();
cleanup_nothing:
MUST_BE_READ_WRITE_UNLOCKED(&ip_nat_lock);
return ret;
}

1
net/ipv4/netfilter/ip_tables.c
Просмотреть файл

@ -67,7 +67,6 @@ static DECLARE_MUTEX(ipt_mutex);
/* Must have mutex */
#define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
#define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/listhelp.h>
#if 0

49
net/ipv4/netfilter/ipt_CLUSTERIP.c
Просмотреть файл

@ -29,7 +29,6 @@
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#define CLUSTERIP_VERSION "0.6"
@ -41,6 +40,8 @@
#define DEBUGP
#endif
#define ASSERT_READ_LOCK(x)
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("iptables target for CLUSTERIP");
@ -67,7 +68,7 @@ static LIST_HEAD(clusterip_configs);
/* clusterip_lock protects the clusterip_configs list _AND_ the configurable
* data within all structurses (num_local_nodes, local_nodes[]) */
static DECLARE_RWLOCK(clusterip_lock);
static DEFINE_RWLOCK(clusterip_lock);
#ifdef CONFIG_PROC_FS
static struct file_operations clusterip_proc_fops;
@ -82,9 +83,9 @@ clusterip_config_get(struct clusterip_config *c) {
static inline void
clusterip_config_put(struct clusterip_config *c) {
if (atomic_dec_and_test(&c->refcount)) {
WRITE_LOCK(&clusterip_lock);
write_lock_bh(&clusterip_lock);
list_del(&c->list);
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
dev_mc_delete(c->dev, c->clustermac, ETH_ALEN, 0);
dev_put(c->dev);
kfree(c);
@ -97,7 +98,7 @@ __clusterip_config_find(u_int32_t clusterip)
{
struct list_head *pos;
MUST_BE_READ_LOCKED(&clusterip_lock);
ASSERT_READ_LOCK(&clusterip_lock);
list_for_each(pos, &clusterip_configs) {
struct clusterip_config *c = list_entry(pos,
struct clusterip_config, list);
@ -114,14 +115,14 @@ clusterip_config_find_get(u_int32_t clusterip)
{
struct clusterip_config *c;
READ_LOCK(&clusterip_lock);
read_lock_bh(&clusterip_lock);
c = __clusterip_config_find(clusterip);
if (!c) {
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
return NULL;
}
atomic_inc(&c->refcount);
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
return c;
}
@ -160,9 +161,9 @@ clusterip_config_init(struct ipt_clusterip_tgt_info *i, u_int32_t ip,
c->pde->data = c;
#endif
WRITE_LOCK(&clusterip_lock);
write_lock_bh(&clusterip_lock);
list_add(&c->list, &clusterip_configs);
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return c;
}
@ -172,25 +173,25 @@ clusterip_add_node(struct clusterip_config *c, u_int16_t nodenum)
{
int i;
WRITE_LOCK(&clusterip_lock);
write_lock_bh(&clusterip_lock);
if (c->num_local_nodes >= CLUSTERIP_MAX_NODES
|| nodenum > CLUSTERIP_MAX_NODES) {
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 1;
}
/* check if we alrady have this number in our array */
for (i = 0; i < c->num_local_nodes; i++) {
if (c->local_nodes[i] == nodenum) {
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 1;
}
}
c->local_nodes[c->num_local_nodes++] = nodenum;
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 0;
}
@ -199,10 +200,10 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
{
int i;
WRITE_LOCK(&clusterip_lock);
write_lock_bh(&clusterip_lock);
if (c->num_local_nodes <= 1 || nodenum > CLUSTERIP_MAX_NODES) {
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 1;
}
@ -211,12 +212,12 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
int size = sizeof(u_int16_t)*(c->num_local_nodes-(i+1));
memmove(&c->local_nodes[i], &c->local_nodes[i+1], size);
c->num_local_nodes--;
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 0;
}
}
WRITE_UNLOCK(&clusterip_lock);
write_unlock_bh(&clusterip_lock);
return 1;
}
@ -286,21 +287,21 @@ clusterip_responsible(struct clusterip_config *config, u_int32_t hash)
{
int i;
READ_LOCK(&clusterip_lock);
read_lock_bh(&clusterip_lock);
if (config->num_local_nodes == 0) {
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
return 0;
}
for (i = 0; i < config->num_local_nodes; i++) {
if (config->local_nodes[i] == hash) {
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
return 1;
}
}
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
return 0;
}
@ -578,7 +579,7 @@ static void *clusterip_seq_start(struct seq_file *s, loff_t *pos)
struct clusterip_config *c = pde->data;
unsigned int *nodeidx;
READ_LOCK(&clusterip_lock);
read_lock_bh(&clusterip_lock);
if (*pos >= c->num_local_nodes)
return NULL;
@ -608,7 +609,7 @@ static void clusterip_seq_stop(struct seq_file *s, void *v)
{
kfree(v);
READ_UNLOCK(&clusterip_lock);
read_unlock_bh(&clusterip_lock);
}
static int clusterip_seq_show(struct seq_file *s, void *v)

10
net/ipv4/netfilter/ipt_MASQUERADE.c
Просмотреть файл

@ -33,7 +33,7 @@ MODULE_DESCRIPTION("iptables MASQUERADE target module");
#endif
/* Lock protects masq region inside conntrack */
static DECLARE_RWLOCK(masq_lock);
static DEFINE_RWLOCK(masq_lock);
/* FIXME: Multiple targets. --RR */
static int
@ -103,9 +103,9 @@ masquerade_target(struct sk_buff **pskb,
return NF_DROP;
}
WRITE_LOCK(&masq_lock);
write_lock_bh(&masq_lock);
ct->nat.masq_index = out->ifindex;
WRITE_UNLOCK(&masq_lock);
write_unlock_bh(&masq_lock);
/* Transfer from original range. */
newrange = ((struct ip_nat_range)
@ -122,9 +122,9 @@ device_cmp(struct ip_conntrack *i, void *ifindex)
{
int ret;
READ_LOCK(&masq_lock);
read_lock_bh(&masq_lock);
ret = (i->nat.masq_index == (int)(long)ifindex);
READ_UNLOCK(&masq_lock);
read_unlock_bh(&masq_lock);
return ret;
}

15
net/ipv4/netfilter/ipt_ULOG.c
Просмотреть файл

@ -56,7 +56,6 @@
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ipt_ULOG.h>
#include <linux/netfilter_ipv4/lockhelp.h>
#include <net/sock.h>
#include <linux/bitops.h>
@ -99,8 +98,8 @@ typedef struct {
static ulog_buff_t ulog_buffers[ULOG_MAXNLGROUPS]; /* array of buffers */
static struct sock *nflognl; /* our socket */
static DECLARE_LOCK(ulog_lock); /* spinlock */
static struct sock *nflognl; /* our socket */
static DEFINE_SPINLOCK(ulog_lock); /* spinlock */
/* send one ulog_buff_t to userspace */
static void ulog_send(unsigned int nlgroupnum)
@ -135,9 +134,9 @@ static void ulog_timer(unsigned long data)
/* lock to protect against somebody modifying our structure
* from ipt_ulog_target at the same time */
LOCK_BH(&ulog_lock);
spin_lock_bh(&ulog_lock);
ulog_send(data);
UNLOCK_BH(&ulog_lock);
spin_unlock_bh(&ulog_lock);
}
static struct sk_buff *ulog_alloc_skb(unsigned int size)
@ -193,7 +192,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
ub = &ulog_buffers[groupnum];
LOCK_BH(&ulog_lock);
spin_lock_bh(&ulog_lock);
if (!ub->skb) {
if (!(ub->skb = ulog_alloc_skb(size)))
@ -278,7 +277,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
ulog_send(groupnum);
}
UNLOCK_BH(&ulog_lock);
spin_unlock_bh(&ulog_lock);
return;
@ -288,7 +287,7 @@ nlmsg_failure:
alloc_failure:
PRINTR("ipt_ULOG: Error building netlink message\n");
UNLOCK_BH(&ulog_lock);
spin_unlock_bh(&ulog_lock);
}
static unsigned int ipt_ulog_target(struct sk_buff **pskb,

17
net/ipv4/netfilter/ipt_hashlimit.c
Просмотреть файл

@ -37,7 +37,6 @@
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ipt_hashlimit.h>
#include <linux/netfilter_ipv4/lockhelp.h>
/* FIXME: this is just for IP_NF_ASSERRT */
#include <linux/netfilter_ipv4/ip_conntrack.h>
@ -92,7 +91,7 @@ struct ipt_hashlimit_htable {
struct hlist_head hash[0]; /* hashtable itself */
};
static DECLARE_LOCK(hashlimit_lock); /* protects htables list */
static DEFINE_SPINLOCK(hashlimit_lock); /* protects htables list */
static DECLARE_MUTEX(hlimit_mutex); /* additional checkentry protection */
static HLIST_HEAD(hashlimit_htables);
static kmem_cache_t *hashlimit_cachep;
@ -233,9 +232,9 @@ static int htable_create(struct ipt_hashlimit_info *minfo)
hinfo->timer.function = htable_gc;
add_timer(&hinfo->timer);
LOCK_BH(&hashlimit_lock);
spin_lock_bh(&hashlimit_lock);
hlist_add_head(&hinfo->node, &hashlimit_htables);
UNLOCK_BH(&hashlimit_lock);
spin_unlock_bh(&hashlimit_lock);
return 0;
}
@ -301,15 +300,15 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
struct ipt_hashlimit_htable *hinfo;
struct hlist_node *pos;
LOCK_BH(&hashlimit_lock);
spin_lock_bh(&hashlimit_lock);
hlist_for_each_entry(hinfo, pos, &hashlimit_htables, node) {
if (!strcmp(name, hinfo->pde->name)) {
atomic_inc(&hinfo->use);
UNLOCK_BH(&hashlimit_lock);
spin_unlock_bh(&hashlimit_lock);
return hinfo;
}
}
UNLOCK_BH(&hashlimit_lock);
spin_unlock_bh(&hashlimit_lock);
return NULL;
}
@ -317,9 +316,9 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
static void htable_put(struct ipt_hashlimit_htable *hinfo)
{
if (atomic_dec_and_test(&hinfo->use)) {
LOCK_BH(&hashlimit_lock);
spin_lock_bh(&hashlimit_lock);
hlist_del(&hinfo->node);
UNLOCK_BH(&hashlimit_lock);
spin_unlock_bh(&hashlimit_lock);
htable_destroy(hinfo);
}
}

4
net/ipv4/netfilter/ipt_helper.c
Просмотреть файл

@ -53,7 +53,7 @@ match(const struct sk_buff *skb,
return ret;
}
READ_LOCK(&ip_conntrack_lock);
read_lock_bh(&ip_conntrack_lock);
if (!ct->master->helper) {
DEBUGP("ipt_helper: master ct %p has no helper\n",
exp->expectant);
@ -69,7 +69,7 @@ match(const struct sk_buff *skb,
ret ^= !strncmp(ct->master->helper->name, info->name,
strlen(ct->master->helper->name));
out_unlock:
READ_UNLOCK(&ip_conntrack_lock);
read_unlock_bh(&ip_conntrack_lock);
return ret;
}

1
net/ipv6/netfilter/ip6_tables.c
Просмотреть файл

@ -71,7 +71,6 @@ static DECLARE_MUTEX(ip6t_mutex);
/* Must have mutex */
#define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
#define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
#include <linux/netfilter_ipv4/lockhelp.h>
#include <linux/netfilter_ipv4/listhelp.h>
#if 0