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Commit f5bda5bc authored by David S. Miller's avatar David S. Miller
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Merge nuts.ninka.net:/home/davem/src/BK/network-2.5 

into nuts.ninka.net:/home/davem/src/BK/net-2.5
parents d62a3dd4 cb52a86c
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Showing with 1747 additions and 981 deletions
crypto/Kconfig
View file @ f5bda5bc
......@@ -6,14 +6,16 @@ menu "Cryptographic options"
config CRYPTO
bool "Cryptographic API"
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m || INET6_AH=y || INET6_AH=m || \
INET6_ESP=y || INET6_ESP=m
help
This option provides the core Cryptographic API.
config CRYPTO_HMAC
bool "HMAC support"
depends on CRYPTO
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m || INET6_AH=y || INET6_AH=m || \
INET6_ESP=y || INET6_ESP=m
help
HMAC: Keyed-Hashing for Message Authentication (RFC2104).
This is required for IPSec.
......@@ -33,14 +35,16 @@ config CRYPTO_MD4
config CRYPTO_MD5
tristate "MD5 digest algorithm"
depends on CRYPTO
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m || INET6_AH=y || INET6_AH=m || \
INET6_ESP=y || INET6_ESP=m
help
MD5 message digest algorithm (RFC1321).
config CRYPTO_SHA1
tristate "SHA1 digest algorithm"
depends on CRYPTO
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m || INET6_AH=y || INET6_AH=m || \
INET6_ESP=y || INET6_ESP=m
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
......@@ -68,7 +72,7 @@ config CRYPTO_SHA512
config CRYPTO_DES
tristate "DES and Triple DES EDE cipher algorithms"
depends on CRYPTO
default y if INET_AH=y || INET_AH=m || INET_ESP=y || INET_ESP=m
default y if INET_ESP=y || INET_ESP=m || INET6_ESP=y || INET6_ESP=m
help
DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
......
include/asm-sparc/hardirq.h
View file @ f5bda5bc
......@@ -9,7 +9,6 @@
#include <linux/config.h>
#include <linux/threads.h>
#include <linux/brlock.h>
#include <linux/spinlock.h>
#include <linux/cache.h>
......
include/asm-sparc64/hardirq.h
View file @ f5bda5bc
......@@ -8,7 +8,6 @@
#include <linux/config.h>
#include <linux/threads.h>
#include <linux/brlock.h>
#include <linux/spinlock.h>
#include <linux/cache.h>
......
include/linux/brlock.h deleted 100644 → 0
View file @ d62a3dd4
#ifndef __LINUX_BRLOCK_H
#define __LINUX_BRLOCK_H
/*
* 'Big Reader' read-write spinlocks.
*
* super-fast read/write locks, with write-side penalty. The point
* is to have a per-CPU read/write lock. Readers lock their CPU-local
* readlock, writers must lock all locks to get write access. These
* CPU-read-write locks are semantically identical to normal rwlocks.
* Memory usage is higher as well. (NR_CPUS*L1_CACHE_BYTES bytes)
*
* The most important feature is that these spinlocks do not cause
* cacheline ping-pong in the 'most readonly data' case.
*
* Copyright 2000, Ingo Molnar <mingo@redhat.com>
*
* Registry idea and naming [ crutial! :-) ] by:
*
* David S. Miller <davem@redhat.com>
*
* David has an implementation that doesn't use atomic operations in
* the read branch via memory ordering tricks - i guess we need to
* split this up into a per-arch thing? The atomicity issue is a
* secondary item in profiles, at least on x86 platforms.
*
* The atomic op version overhead is indeed a big deal on
* load-locked/store-conditional cpus (ALPHA/MIPS/PPC) and
* compare-and-swap cpus (Sparc64). So we control which
* implementation to use with a __BRLOCK_USE_ATOMICS define. -DaveM
*
*/
/* Register bigreader lock indices here. */
enum brlock_indices {
BR_NETPROTO_LOCK,
__BR_END
};
#include <linux/config.h>
#ifdef CONFIG_SMP
#include <linux/cache.h>
#include <linux/spinlock.h>
#if defined(__i386__) || defined(__ia64__) || defined(__x86_64__)
#define __BRLOCK_USE_ATOMICS
#else
#undef __BRLOCK_USE_ATOMICS
#endif
#ifdef __BRLOCK_USE_ATOMICS
typedef rwlock_t brlock_read_lock_t;
#else
typedef unsigned int brlock_read_lock_t;
#endif
/*
* align last allocated index to the next cacheline:
*/
#define __BR_IDX_MAX \
(((sizeof(brlock_read_lock_t)*__BR_END + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1)) / sizeof(brlock_read_lock_t))
extern brlock_read_lock_t __brlock_array[NR_CPUS][__BR_IDX_MAX];
#ifndef __BRLOCK_USE_ATOMICS
struct br_wrlock {
spinlock_t lock;
} __attribute__ ((__aligned__(SMP_CACHE_BYTES)));
extern struct br_wrlock __br_write_locks[__BR_IDX_MAX];
#endif
extern void __br_lock_usage_bug (void);
#ifdef __BRLOCK_USE_ATOMICS
static inline void br_read_lock (enum brlock_indices idx)
{
/*
* This causes a link-time bug message if an
* invalid index is used:
*/
if (idx >= __BR_END)
__br_lock_usage_bug();
preempt_disable();
_raw_read_lock(&__brlock_array[smp_processor_id()][idx]);
}
static inline void br_read_unlock (enum brlock_indices idx)
{
if (idx >= __BR_END)
__br_lock_usage_bug();
read_unlock(&__brlock_array[smp_processor_id()][idx]);
}
#else /* ! __BRLOCK_USE_ATOMICS */
static inline void br_read_lock (enum brlock_indices idx)
{
unsigned int *ctr;
spinlock_t *lock;
/*
* This causes a link-time bug message if an
* invalid index is used:
*/
if (idx >= __BR_END)
__br_lock_usage_bug();
preempt_disable();
ctr = &__brlock_array[smp_processor_id()][idx];
lock = &__br_write_locks[idx].lock;
again:
(*ctr)++;
mb();
if (spin_is_locked(lock)) {
(*ctr)--;
wmb(); /*
* The release of the ctr must become visible
* to the other cpus eventually thus wmb(),
* we don't care if spin_is_locked is reordered
* before the releasing of the ctr.
* However IMHO this wmb() is superflous even in theory.
* It would not be superflous only if on the
* other CPUs doing a ldl_l instead of an ldl
* would make a difference and I don't think this is
* the case.
* I'd like to clarify this issue further
* but for now this is a slow path so adding the
* wmb() will keep us on the safe side.
*/
while (spin_is_locked(lock))
barrier();
goto again;
}
}
static inline void br_read_unlock (enum brlock_indices idx)
{
unsigned int *ctr;
if (idx >= __BR_END)
__br_lock_usage_bug();
ctr = &__brlock_array[smp_processor_id()][idx];
wmb();
(*ctr)--;
preempt_enable();
}
#endif /* __BRLOCK_USE_ATOMICS */
/* write path not inlined - it's rare and larger */
extern void FASTCALL(__br_write_lock (enum brlock_indices idx));
extern void FASTCALL(__br_write_unlock (enum brlock_indices idx));
static inline void br_write_lock (enum brlock_indices idx)
{
if (idx >= __BR_END)
__br_lock_usage_bug();
__br_write_lock(idx);
}
static inline void br_write_unlock (enum brlock_indices idx)
{
if (idx >= __BR_END)
__br_lock_usage_bug();
__br_write_unlock(idx);
}
#else
# define br_read_lock(idx) ({ (void)(idx); preempt_disable(); })
# define br_read_unlock(idx) ({ (void)(idx); preempt_enable(); })
# define br_write_lock(idx) ({ (void)(idx); preempt_disable(); })
# define br_write_unlock(idx) ({ (void)(idx); preempt_enable(); })
#endif /* CONFIG_SMP */
/*
* Now enumerate all of the possible sw/hw IRQ protected
* versions of the interfaces.
*/
#define br_read_lock_irqsave(idx, flags) \
do { local_irq_save(flags); br_read_lock(idx); } while (0)
#define br_read_lock_irq(idx) \
do { local_irq_disable(); br_read_lock(idx); } while (0)
#define br_read_lock_bh(idx) \
do { local_bh_disable(); br_read_lock(idx); } while (0)
#define br_write_lock_irqsave(idx, flags) \
do { local_irq_save(flags); br_write_lock(idx); } while (0)
#define br_write_lock_irq(idx) \
do { local_irq_disable(); br_write_lock(idx); } while (0)
#define br_write_lock_bh(idx) \
do { local_bh_disable(); br_write_lock(idx); } while (0)
#define br_read_unlock_irqrestore(idx, flags) \
do { br_read_unlock(irx); local_irq_restore(flags); } while (0)
#define br_read_unlock_irq(idx) \
do { br_read_unlock(idx); local_irq_enable(); } while (0)
#define br_read_unlock_bh(idx) \
do { br_read_unlock(idx); local_bh_enable(); } while (0)
#define br_write_unlock_irqrestore(idx, flags) \
do { br_write_unlock(irx); local_irq_restore(flags); } while (0)
#define br_write_unlock_irq(idx) \
do { br_write_unlock(idx); local_irq_enable(); } while (0)
#define br_write_unlock_bh(idx) \
do { br_write_unlock(idx); local_bh_enable(); } while (0)
#endif /* __LINUX_BRLOCK_H */
include/linux/ipv6.h
View file @ f5bda5bc
......@@ -121,6 +121,7 @@ struct ipv6hdr {
#include <linux/icmpv6.h>
#include <net/if_inet6.h> /* struct ipv6_mc_socklist */
#include <linux/tcp.h>
#include <linux/udp.h>
/*
This structure contains results of exthdrs parsing
......@@ -178,6 +179,11 @@ struct ipv6_pinfo {
struct ipv6_txoptions *opt;
struct sk_buff *pktoptions;
struct {
struct ipv6_txoptions *opt;
struct rt6_info *rt;
struct flowi *fl;
} cork;
};
struct raw6_opt {
......@@ -200,6 +206,7 @@ struct udp6_sock {
struct sock sk;
struct ipv6_pinfo *pinet6;
struct inet_opt inet;
struct udp_opt udp;
struct ipv6_pinfo inet6;
};
......
include/linux/netdevice.h
View file @ f5bda5bc
......@@ -456,7 +456,7 @@ struct packet_type
int (*func) (struct sk_buff *, struct net_device *,
struct packet_type *);
void *data; /* Private to the packet type */
struct packet_type *next;
struct list_head list;
};
......@@ -472,6 +472,7 @@ extern int netdev_boot_setup_check(struct net_device *dev);
extern struct net_device *dev_getbyhwaddr(unsigned short type, char *hwaddr);
extern void dev_add_pack(struct packet_type *pt);
extern void dev_remove_pack(struct packet_type *pt);
extern void __dev_remove_pack(struct packet_type *pt);
extern int dev_get(const char *name);
extern struct net_device *dev_get_by_flags(unsigned short flags,
unsigned short mask);
......
include/linux/skbuff.h
View file @ f5bda5bc
......@@ -792,6 +792,15 @@ static inline int skb_pagelen(const struct sk_buff *skb)
return len + skb_headlen(skb);
}
static inline void skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page, int off, int size)
{
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
frag->page = page;
frag->page_offset = off;
frag->size = size;
skb_shinfo(skb)->nr_frags = i+1;
}
#define SKB_PAGE_ASSERT(skb) do { if (skb_shinfo(skb)->nr_frags) \
BUG(); } while (0)
#define SKB_FRAG_ASSERT(skb) do { if (skb_shinfo(skb)->frag_list) \
......
include/net/ipv6.h
View file @ f5bda5bc
......@@ -316,6 +316,26 @@ extern int ip6_build_xmit(struct sock *sk,
struct ipv6_txoptions *opt,
int hlimit, int flags);
extern int ip6_append_data(struct sock *sk,
int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
void *from,
int length,
int transhdrlen,
int hlimit,
struct ipv6_txoptions *opt,
struct flowi *fl,
struct rt6_info *rt,
unsigned int flags);
extern int ip6_push_pending_frames(struct sock *sk);
extern void ip6_flush_pending_frames(struct sock *sk);
extern int ip6_dst_lookup(struct sock *sk,
struct dst_entry **dst,
struct flowi *fl,
struct in6_addr **saddr);
/*
* skb processing functions
*/
......
include/net/xfrm.h
View file @ f5bda5bc
......@@ -123,6 +123,12 @@ struct xfrm_state
/* Data for encapsulator */
struct xfrm_encap_tmpl *encap;
/* IPComp needs an IPIP tunnel for handling uncompressed packets */
struct xfrm_state *tunnel;
/* If a tunnel, number of users + 1 */
atomic_t tunnel_users;
/* State for replay detection */
struct xfrm_replay_state replay;
......@@ -196,6 +202,8 @@ extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
extern struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned short family);
extern void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
extern void xfrm_state_delete_tunnel(struct xfrm_state *x);
struct xfrm_decap_state;
struct xfrm_type
{
......@@ -699,6 +707,11 @@ xfrm_state_addr_check(struct xfrm_state *x,
return 0;
}
static inline int xfrm_state_kern(struct xfrm_state *x)
{
return atomic_read(&x->tunnel_users);
}
/*
* xfrm algorithm information
*/
......
kernel/ksyms.c
View file @ f5bda5bc
......@@ -40,7 +40,6 @@
#include <linux/mm.h>
#include <linux/capability.h>
#include <linux/highuid.h>
#include <linux/brlock.h>
#include <linux/fs.h>
#include <linux/uio.h>
#include <linux/tty.h>
......@@ -429,17 +428,6 @@ EXPORT_SYMBOL(del_timer_sync);
#endif
EXPORT_SYMBOL(mod_timer);
#ifdef CONFIG_SMP
/* Big-Reader lock implementation */
EXPORT_SYMBOL(__brlock_array);
#ifndef __BRLOCK_USE_ATOMICS
EXPORT_SYMBOL(__br_write_locks);
#endif
EXPORT_SYMBOL(__br_write_lock);
EXPORT_SYMBOL(__br_write_unlock);
#endif
#ifdef HAVE_DISABLE_HLT
EXPORT_SYMBOL(disable_hlt);
EXPORT_SYMBOL(enable_hlt);
......
lib/Makefile
View file @ f5bda5bc
......@@ -8,7 +8,7 @@
L_TARGET := lib.a
obj-y := errno.o ctype.o string.o vsprintf.o brlock.o cmdline.o \
obj-y := errno.o ctype.o string.o vsprintf.o cmdline.o \
bust_spinlocks.o rbtree.o radix-tree.o dump_stack.o \
kobject.o idr.o
......
lib/brlock.c deleted 100644 → 0
View file @ d62a3dd4
/*
*
* linux/lib/brlock.c
*
* 'Big Reader' read-write spinlocks. See linux/brlock.h for details.
*
* Copyright 2000, Ingo Molnar <mingo@redhat.com>
* Copyright 2000, David S. Miller <davem@redhat.com>
*/
#include <linux/config.h>
#ifdef CONFIG_SMP
#include <linux/sched.h>
#include <linux/brlock.h>
#ifdef __BRLOCK_USE_ATOMICS
brlock_read_lock_t __brlock_array[NR_CPUS][__BR_IDX_MAX] =
{ [0 ... NR_CPUS-1] = { [0 ... __BR_IDX_MAX-1] = RW_LOCK_UNLOCKED } };
void __br_write_lock (enum brlock_indices idx)
{
int i;
preempt_disable();
for (i = 0; i < NR_CPUS; i++)
_raw_write_lock(&__brlock_array[i][idx]);
}
void __br_write_unlock (enum brlock_indices idx)
{
int i;
for (i = 0; i < NR_CPUS; i++)
_raw_write_unlock(&__brlock_array[i][idx]);
preempt_enable();
}
#else /* ! __BRLOCK_USE_ATOMICS */
brlock_read_lock_t __brlock_array[NR_CPUS][__BR_IDX_MAX] =
{ [0 ... NR_CPUS-1] = { [0 ... __BR_IDX_MAX-1] = 0 } };
struct br_wrlock __br_write_locks[__BR_IDX_MAX] =
{ [0 ... __BR_IDX_MAX-1] = { SPIN_LOCK_UNLOCKED } };
void __br_write_lock (enum brlock_indices idx)
{
int i;
preempt_disable();
again:
_raw_spin_lock(&__br_write_locks[idx].lock);
for (i = 0; i < NR_CPUS; i++)
if (__brlock_array[i][idx] != 0) {
_raw_spin_unlock(&__br_write_locks[idx].lock);
barrier();
cpu_relax();
goto again;
}
}
void __br_write_unlock (enum brlock_indices idx)
{
spin_unlock(&__br_write_locks[idx].lock);
}
#endif /* __BRLOCK_USE_ATOMICS */
#endif /* CONFIG_SMP */
net/bridge/br_fdb.c
View file @ f5bda5bc
......@@ -20,25 +20,19 @@
#include <asm/uaccess.h>
#include "br_private.h"
static __inline__ unsigned long __timeout(struct net_bridge *br)
/* if topology_changing then use forward_delay (default 15 sec)
* otherwise keep longer (default 5 minutes)
*/
static __inline__ unsigned long hold_time(const struct net_bridge *br)
{
unsigned long timeout;
timeout = jiffies - br->ageing_time;
if (br->topology_change)
timeout = jiffies - br->forward_delay;
return timeout;
return br->topology_change ? br->forward_delay : br->ageing_time;
}
static __inline__ int has_expired(struct net_bridge *br,
struct net_bridge_fdb_entry *fdb)
static __inline__ int has_expired(const struct net_bridge *br,
const struct net_bridge_fdb_entry *fdb)
{
if (!fdb->is_static &&
time_before_eq(fdb->ageing_timer, __timeout(br)))
return 1;
return 0;
return !fdb->is_static
&& time_before_eq(fdb->ageing_timer + hold_time(br), jiffies);
}
static __inline__ void copy_fdb(struct __fdb_entry *ent,
......@@ -52,7 +46,7 @@ static __inline__ void copy_fdb(struct __fdb_entry *ent,
: ((jiffies - f->ageing_timer) * USER_HZ) / HZ;
}
static __inline__ int br_mac_hash(unsigned char *mac)
static __inline__ int br_mac_hash(const unsigned char *mac)
{
unsigned long x;
......@@ -68,7 +62,14 @@ static __inline__ int br_mac_hash(unsigned char *mac)
return x & (BR_HASH_SIZE - 1);
}
void br_fdb_changeaddr(struct net_bridge_port *p, unsigned char *newaddr)
static __inline__ void fdb_delete(struct net_bridge_fdb_entry *f)
{
hlist_del(&f->hlist);
list_del(&f->age_list);
br_fdb_put(f);
}
void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr)
{
struct net_bridge *br;
int i;
......@@ -98,25 +99,29 @@ void br_fdb_changeaddr(struct net_bridge_port *p, unsigned char *newaddr)
write_unlock_bh(&br->hash_lock);
}
void br_fdb_cleanup(struct net_bridge *br)
void br_fdb_cleanup(unsigned long _data)
{
int i;
unsigned long timeout;
timeout = __timeout(br);
struct net_bridge *br = (struct net_bridge *)_data;
struct list_head *l, *n;
unsigned long delay;
write_lock_bh(&br->hash_lock);
for (i=0;i<BR_HASH_SIZE;i++) {
struct hlist_node *h, *g;
hlist_for_each_safe(h, g, &br->hash[i]) {
struct net_bridge_fdb_entry *f
= hlist_entry(h, struct net_bridge_fdb_entry, hlist);
if (!f->is_static &&
time_before_eq(f->ageing_timer, timeout)) {
hlist_del(&f->hlist);
br_fdb_put(f);
delay = hold_time(br);
list_for_each_safe(l, n, &br->age_list) {
struct net_bridge_fdb_entry *f
= list_entry(l, struct net_bridge_fdb_entry, age_list);
unsigned long expires = f->ageing_timer + delay;
if (time_before_eq(expires, jiffies)) {
if (!f->is_static) {
pr_debug("expire age %lu jiffies %lu\n",
f->ageing_timer, jiffies);
fdb_delete(f);
}
} else {
mod_timer(&br->gc_timer, expires);
break;
}
}
write_unlock_bh(&br->hash_lock);
......@@ -134,8 +139,7 @@ void br_fdb_delete_by_port(struct net_bridge *br, struct net_bridge_port *p)
struct net_bridge_fdb_entry *f
= hlist_entry(h, struct net_bridge_fdb_entry, hlist);
if (f->dst == p) {
hlist_del(&f->hlist);
br_fdb_put(f);
fdb_delete(f);
}
}
}
......@@ -237,55 +241,46 @@ int br_fdb_get_entries(struct net_bridge *br,
return num;
}
static __inline__ void __fdb_possibly_replace(struct net_bridge_fdb_entry *fdb,
struct net_bridge_port *source,
int is_local)
{
if (!fdb->is_static || is_local) {
fdb->dst = source;
fdb->is_local = is_local;
fdb->is_static = is_local;
fdb->ageing_timer = jiffies;
}
}
void br_fdb_insert(struct net_bridge *br,
struct net_bridge_port *source,
unsigned char *addr,
int is_local)
void br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
const unsigned char *addr, int is_local)
{
struct hlist_node *h;
struct net_bridge_fdb_entry *fdb;
int hash;
hash = br_mac_hash(addr);
int hash = br_mac_hash(addr);
write_lock_bh(&br->hash_lock);
hlist_for_each(h, &br->hash[hash]) {
fdb = hlist_entry(h, struct net_bridge_fdb_entry, hlist);
if (!fdb->is_local &&
!memcmp(fdb->addr.addr, addr, ETH_ALEN)) {
__fdb_possibly_replace(fdb, source, is_local);
write_unlock_bh(&br->hash_lock);
return;
if (likely(!fdb->is_static || is_local)) {
/* move to end of age list */
list_del(&fdb->age_list);
goto update;
}
goto out;
}
}
fdb = kmalloc(sizeof(*fdb), GFP_ATOMIC);
if (fdb == NULL) {
write_unlock_bh(&br->hash_lock);
return;
}
if (fdb == NULL)
goto out;
memcpy(fdb->addr.addr, addr, ETH_ALEN);
atomic_set(&fdb->use_count, 1);
hlist_add_head(&fdb->hlist, &br->hash[hash]);
if (!timer_pending(&br->gc_timer)) {
br->gc_timer.expires = jiffies + hold_time(br);
add_timer(&br->gc_timer);
}
update:
fdb->dst = source;
fdb->is_local = is_local;
fdb->is_static = is_local;
fdb->ageing_timer = jiffies;
hlist_add_head(&fdb->hlist, &br->hash[hash]);
list_add_tail(&fdb->age_list, &br->age_list);
out:
write_unlock_bh(&br->hash_lock);
}
net/bridge/br_if.c
View file @ f5bda5bc
......@@ -84,8 +84,6 @@ static struct net_bridge *new_nb(const char *name)
memset(br, 0, sizeof(*br));
dev = &br->dev;
init_timer(&br->tick);
strncpy(dev->name, name, IFNAMSIZ);
dev->priv = br;
dev->priv_flags = IFF_EBRIDGE;
......@@ -109,12 +107,10 @@ static struct net_bridge *new_nb(const char *name)
br->bridge_forward_delay = br->forward_delay = 15 * HZ;
br->topology_change = 0;
br->topology_change_detected = 0;
br_timer_clear(&br->hello_timer);
br_timer_clear(&br->tcn_timer);
br_timer_clear(&br->topology_change_timer);
br->ageing_time = 300 * HZ;
br->gc_interval = 4 * HZ;
INIT_LIST_HEAD(&br->age_list);
br_stp_timer_init(br);
return br;
}
......
net/bridge/br_ioctl.c
View file @ f5bda5bc
......@@ -32,9 +32,10 @@ static inline unsigned long ticks_to_user(unsigned long tick)
}
/* Report time remaining in user HZ */
static unsigned long timer_residue(const struct br_timer *timer)
static unsigned long timer_residue(const struct timer_list *timer)
{
return ticks_to_user(timer->running ? (jiffies - timer->expires) : 0);
return ticks_to_user(timer_pending(timer)
? (timer->expires - jiffies) : 0);
}
static int br_ioctl_device(struct net_bridge *br,
......@@ -87,7 +88,6 @@ static int br_ioctl_device(struct net_bridge *br,
b.root_port = br->root_port;
b.stp_enabled = br->stp_enabled;
b.ageing_time = ticks_to_user(br->ageing_time);
b.gc_interval = ticks_to_user(br->gc_interval);
b.hello_timer_value = timer_residue(&br->hello_timer);
b.tcn_timer_value = timer_residue(&br->tcn_timer);
b.topology_change_timer_value = timer_residue(&br->topology_change_timer);
......@@ -146,8 +146,7 @@ static int br_ioctl_device(struct net_bridge *br,
br->ageing_time = user_to_ticks(arg0);
return 0;
case BRCTL_SET_GC_INTERVAL:
br->gc_interval = user_to_ticks(arg0);
case BRCTL_SET_GC_INTERVAL: /* no longer used */
return 0;
case BRCTL_GET_PORT_INFO:
......
net/bridge/br_private.h
View file @ f5bda5bc
......@@ -18,7 +18,6 @@
#include <linux/netdevice.h>
#include <linux/miscdevice.h>
#include <linux/if_bridge.h>
#include "br_private_timer.h"
#define BR_HASH_BITS 8
#define BR_HASH_SIZE (1 << BR_HASH_BITS)
......@@ -44,10 +43,11 @@ struct mac_addr
struct net_bridge_fdb_entry
{
struct hlist_node hlist;
atomic_t use_count;
mac_addr addr;
struct net_bridge_port *dst;
struct list_head age_list;
atomic_t use_count;
unsigned long ageing_timer;
mac_addr addr;
unsigned is_local:1;
unsigned is_static:1;
};
......@@ -71,10 +71,9 @@ struct net_bridge_port
unsigned config_pending:1;
int priority;
struct br_timer forward_delay_timer;
struct br_timer hold_timer;
struct br_timer message_age_timer;
struct timer_list forward_delay_timer;
struct timer_list hold_timer;
struct timer_list message_age_timer;
struct rcu_head rcu;
};
......@@ -86,7 +85,7 @@ struct net_bridge
struct net_device_stats statistics;
rwlock_t hash_lock;
struct hlist_head hash[BR_HASH_SIZE];
struct timer_list tick;
struct list_head age_list;
/* STP */
bridge_id designated_root;
......@@ -103,13 +102,12 @@ struct net_bridge
unsigned topology_change:1;
unsigned topology_change_detected:1;
struct br_timer hello_timer;
struct br_timer tcn_timer;
struct br_timer topology_change_timer;
struct br_timer gc_timer;
struct timer_list hello_timer;
struct timer_list tcn_timer;
struct timer_list topology_change_timer;
struct timer_list gc_timer;
int ageing_time;
int gc_interval;
};
extern struct notifier_block br_device_notifier;
......@@ -128,8 +126,8 @@ extern int br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
/* br_fdb.c */
extern void br_fdb_changeaddr(struct net_bridge_port *p,
unsigned char *newaddr);
extern void br_fdb_cleanup(struct net_bridge *br);
const unsigned char *newaddr);
extern void br_fdb_cleanup(unsigned long arg);
extern void br_fdb_delete_by_port(struct net_bridge *br,
struct net_bridge_port *p);
extern struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
......@@ -140,9 +138,9 @@ extern int br_fdb_get_entries(struct net_bridge *br,
int maxnum,
int offset);
extern void br_fdb_insert(struct net_bridge *br,
struct net_bridge_port *source,
unsigned char *addr,
int is_local);
struct net_bridge_port *source,
const unsigned char *addr,
int is_local);
/* br_forward.c */
extern void br_deliver(const struct net_bridge_port *to,
......@@ -188,10 +186,10 @@ extern int br_netfilter_init(void);
extern void br_netfilter_fini(void);
/* br_stp.c */
extern void br_log_state(const struct net_bridge_port *p);
extern struct net_bridge_port *br_get_port(struct net_bridge *br,
int port_no);
extern void br_init_port(struct net_bridge_port *p);
extern port_id br_make_port_id(struct net_bridge_port *p);
extern void br_become_designated_port(struct net_bridge_port *p);
/* br_stp_if.c */
......@@ -210,4 +208,8 @@ extern void br_stp_set_path_cost(struct net_bridge_port *p,
/* br_stp_bpdu.c */
extern void br_stp_handle_bpdu(struct sk_buff *skb);
/* br_stp_timer.c */
extern void br_stp_timer_init(struct net_bridge *br);
extern void br_stp_port_timer_init(struct net_bridge_port *p);
#endif
net/bridge/br_private_stp.h
View file @ f5bda5bc
......@@ -47,7 +47,6 @@ extern void br_configuration_update(struct net_bridge *);
extern void br_port_state_selection(struct net_bridge *);
extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
extern void br_received_tcn_bpdu(struct net_bridge_port *p);
extern void br_tick(unsigned long __data);
extern void br_transmit_config(struct net_bridge_port *p);
extern void br_transmit_tcn(struct net_bridge *br);
extern void br_topology_change_detection(struct net_bridge *br);
......
net/bridge/br_private_timer.h deleted 100644 → 0
View file @ d62a3dd4
/*
* Linux ethernet bridge
*
* Authors:
* Lennert Buytenhek <buytenh@gnu.org>
*
* $Id: br_private_timer.h,v 1.1 2000/02/18 16:47:13 davem Exp $
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _BR_PRIVATE_TIMER_H
#define _BR_PRIVATE_TIMER_H
struct br_timer
{
int running;
unsigned long expires;
};
extern __inline__ void br_timer_clear(struct br_timer *t)
{
t->running = 0;
}
extern __inline__ unsigned long br_timer_get_residue(struct br_timer *t)
{
if (t->running)
return jiffies - t->expires;
return 0;
}
extern __inline__ void br_timer_set(struct br_timer *t, unsigned long x)
{
t->expires = x;
t->running = 1;
}
extern __inline__ int br_timer_is_running(struct br_timer *t)
{
return t->running;
}
extern __inline__ int br_timer_has_expired(struct br_timer *t, unsigned long to)
{
return t->running && time_after_eq(jiffies, t->expires + to);
}
#endif
net/bridge/br_stp.c
View file @ f5bda5bc
......@@ -12,7 +12,6 @@
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/if_bridge.h>
#include <linux/smp_lock.h>
......@@ -20,6 +19,18 @@
#include "br_private.h"
#include "br_private_stp.h"
static const char *br_port_state_names[] = {
"disabled", "learning", "forwarding", "blocking",
};
void br_log_state(const struct net_bridge_port *p)
{
pr_info("%s: port %d(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name,
br_port_state_names[p->state]);
}
/* called under bridge lock */
struct net_bridge_port *br_get_port(struct net_bridge *br, int port_no)
{
......@@ -34,7 +45,8 @@ struct net_bridge_port *br_get_port(struct net_bridge *br, int port_no)
}
/* called under bridge lock */
static int br_should_become_root_port(struct net_bridge_port *p, int root_port)
static int br_should_become_root_port(const struct net_bridge_port *p,
int root_port)
{
struct net_bridge *br;
struct net_bridge_port *rp;
......@@ -116,9 +128,12 @@ void br_become_root_bridge(struct net_bridge *br)
br->hello_time = br->bridge_hello_time;
br->forward_delay = br->bridge_forward_delay;
br_topology_change_detection(br);
br_timer_clear(&br->tcn_timer);
br_config_bpdu_generation(br);
br_timer_set(&br->hello_timer, jiffies);
del_timer(&br->tcn_timer);
if (br->dev.flags & IFF_UP) {
br_config_bpdu_generation(br);
mod_timer(&br->hello_timer, jiffies + br->hello_time);
}
}
/* called under bridge lock */
......@@ -127,7 +142,8 @@ void br_transmit_config(struct net_bridge_port *p)
struct br_config_bpdu bpdu;
struct net_bridge *br;
if (br_timer_is_running(&p->hold_timer)) {
if (timer_pending(&p->hold_timer)) {
p->config_pending = 1;
return;
}
......@@ -142,12 +158,11 @@ void br_transmit_config(struct net_bridge_port *p)
bpdu.port_id = p->port_id;
bpdu.message_age = 0;
if (!br_is_root_bridge(br)) {
struct net_bridge_port *root;
unsigned long age;
struct net_bridge_port *root
= br_get_port(br, br->root_port);
bpdu.max_age = root->message_age_timer.expires - jiffies;
root = br_get_port(br, br->root_port);
age = br_timer_get_residue(&root->message_age_timer) + 1;
bpdu.message_age = age;
if (bpdu.max_age <= 0) bpdu.max_age = 1;
}
bpdu.max_age = br->max_age;
bpdu.hello_time = br->hello_time;
......@@ -157,22 +172,26 @@ void br_transmit_config(struct net_bridge_port *p)
p->topology_change_ack = 0;
p->config_pending = 0;
br_timer_set(&p->hold_timer, jiffies);
mod_timer(&p->hold_timer, jiffies + BR_HOLD_TIME);
}
/* called under bridge lock */
static void br_record_config_information(struct net_bridge_port *p, struct br_config_bpdu *bpdu)
static inline void br_record_config_information(struct net_bridge_port *p,
const struct br_config_bpdu *bpdu)
{
p->designated_root = bpdu->root;
p->designated_cost = bpdu->root_path_cost;
p->designated_bridge = bpdu->bridge_id;
p->designated_port = bpdu->port_id;
br_timer_set(&p->message_age_timer, jiffies - bpdu->message_age);
mod_timer(&p->message_age_timer, jiffies
+ (p->br->max_age - bpdu->message_age));
}
/* called under bridge lock */
static void br_record_config_timeout_values(struct net_bridge *br, struct br_config_bpdu *bpdu)
static inline void br_record_config_timeout_values(struct net_bridge *br,
const struct br_config_bpdu *bpdu)
{
br->max_age = bpdu->max_age;
br->hello_time = bpdu->hello_time;
......@@ -187,7 +206,7 @@ void br_transmit_tcn(struct net_bridge *br)
}
/* called under bridge lock */
static int br_should_become_designated_port(struct net_bridge_port *p)
static int br_should_become_designated_port(const struct net_bridge_port *p)
{
struct net_bridge *br;
int t;
......@@ -261,25 +280,28 @@ static int br_supersedes_port_info(struct net_bridge_port *p, struct br_config_b
}
/* called under bridge lock */
static void br_topology_change_acknowledged(struct net_bridge *br)
static inline void br_topology_change_acknowledged(struct net_bridge *br)
{
br->topology_change_detected = 0;
br_timer_clear(&br->tcn_timer);
del_timer(&br->tcn_timer);
}
/* called under bridge lock */
void br_topology_change_detection(struct net_bridge *br)
{
printk(KERN_INFO "%s: topology change detected", br->dev.name);
if (!(br->dev.flags & IFF_UP))
return;
pr_info("%s: topology change detected", br->dev.name);
if (br_is_root_bridge(br)) {
printk(", propagating");
br->topology_change = 1;
br_timer_set(&br->topology_change_timer, jiffies);
mod_timer(&br->topology_change_timer, jiffies
+ br->bridge_forward_delay + br->bridge_max_age);
} else if (!br->topology_change_detected) {
printk(", sending tcn bpdu");
br_transmit_tcn(br);
br_timer_set(&br->tcn_timer, jiffies);
mod_timer(&br->tcn_timer, jiffies + br->bridge_hello_time);
}
printk("\n");
......@@ -299,7 +321,7 @@ void br_config_bpdu_generation(struct net_bridge *br)
}
/* called under bridge lock */
static void br_reply(struct net_bridge_port *p)
static inline void br_reply(struct net_bridge_port *p)
{
br_transmit_config(p);
}
......@@ -323,6 +345,7 @@ void br_become_designated_port(struct net_bridge_port *p)
p->designated_port = p->port_id;
}
/* called under bridge lock */
static void br_make_blocking(struct net_bridge_port *p)
{
......@@ -332,11 +355,9 @@ static void br_make_blocking(struct net_bridge_port *p)
p->state == BR_STATE_LEARNING)
br_topology_change_detection(p->br);
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name, "blocking");
p->state = BR_STATE_BLOCKING;
br_timer_clear(&p->forward_delay_timer);
br_log_state(p);
del_timer(&p->forward_delay_timer);
}
}
......@@ -345,20 +366,12 @@ static void br_make_forwarding(struct net_bridge_port *p)
{
if (p->state == BR_STATE_BLOCKING) {
if (p->br->stp_enabled) {
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name,
"listening");
p->state = BR_STATE_LISTENING;
} else {
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name,
"learning");
p->state = BR_STATE_LEARNING;
}
br_timer_set(&p->forward_delay_timer, jiffies);
}
br_log_state(p);
mod_timer(&p->forward_delay_timer, jiffies + p->br->forward_delay); }
}
/* called under bridge lock */
......@@ -373,7 +386,7 @@ void br_port_state_selection(struct net_bridge *br)
p->topology_change_ack = 0;
br_make_forwarding(p);
} else if (br_is_designated_port(p)) {
br_timer_clear(&p->message_age_timer);
del_timer(&p->message_age_timer);
br_make_forwarding(p);
} else {
p->config_pending = 0;
......@@ -381,11 +394,12 @@ void br_port_state_selection(struct net_bridge *br)
br_make_blocking(p);
}
}
}
}
/* called under bridge lock */
static void br_topology_change_acknowledge(struct net_bridge_port *p)
static inline void br_topology_change_acknowledge(struct net_bridge_port *p)
{
p->topology_change_ack = 1;
br_transmit_config(p);
......@@ -396,20 +410,23 @@ void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *b
{
struct net_bridge *br;
int was_root;
br = p->br;
was_root = br_is_root_bridge(br);
if (br_supersedes_port_info(p, bpdu)) {
br_record_config_information(p, bpdu);
br_configuration_update(br);
br_port_state_selection(br);
if (!br_is_root_bridge(br) && was_root) {
br_timer_clear(&br->hello_timer);
del_timer(&br->hello_timer);
if (br->topology_change_detected) {
br_timer_clear(&br->topology_change_timer);
del_timer(&br->topology_change_timer);
br_transmit_tcn(br);
br_timer_set(&br->tcn_timer, jiffies);
mod_timer(&br->tcn_timer,
jiffies + br->bridge_hello_time);
}
}
......@@ -428,7 +445,7 @@ void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *b
void br_received_tcn_bpdu(struct net_bridge_port *p)
{
if (br_is_designated_port(p)) {
printk(KERN_INFO "%s: received tcn bpdu on port %i(%s)\n",
pr_info("%s: received tcn bpdu on port %i(%s)\n",
p->br->dev.name, p->port_no, p->dev->name);
br_topology_change_detection(p->br);
......
net/bridge/br_stp_if.c
View file @ f5bda5bc
......@@ -20,7 +20,7 @@
#include "br_private.h"
#include "br_private_stp.h"
__u16 br_make_port_id(struct net_bridge_port *p)
static inline __u16 br_make_port_id(const struct net_bridge_port *p)
{
return (p->priority << 8) | p->port_no;
}
......@@ -33,33 +33,25 @@ void br_init_port(struct net_bridge_port *p)
p->state = BR_STATE_BLOCKING;
p->topology_change_ack = 0;
p->config_pending = 0;
br_timer_clear(&p->message_age_timer);
br_timer_clear(&p->forward_delay_timer);
br_timer_clear(&p->hold_timer);
br_stp_port_timer_init(p);
}
/* called under bridge lock */
void br_stp_enable_bridge(struct net_bridge *br)
{
struct net_bridge_port *p;
struct timer_list *timer = &br->tick;
spin_lock_bh(&br->lock);
init_timer(timer);
timer->data = (unsigned long) br;
timer->function = br_tick;
timer->expires = jiffies + 1;
add_timer(timer);
br_timer_set(&br->hello_timer, jiffies);
br->hello_timer.expires = jiffies + br->hello_time;
add_timer(&br->hello_timer);
br_config_bpdu_generation(br);
list_for_each_entry(p, &br->port_list, list) {
if (p->dev->flags & IFF_UP)
br_stp_enable_port(p);
}
br_timer_set(&br->gc_timer, jiffies);
}
spin_unlock_bh(&br->lock);
}
......@@ -68,22 +60,22 @@ void br_stp_disable_bridge(struct net_bridge *br)
{
struct net_bridge_port *p;
spin_lock_bh(&br->lock);
br->topology_change = 0;
br->topology_change_detected = 0;
br_timer_clear(&br->hello_timer);
br_timer_clear(&br->topology_change_timer);
br_timer_clear(&br->tcn_timer);
br_timer_clear(&br->gc_timer);
br_fdb_cleanup(br);
spin_lock(&br->lock);
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED)
br_stp_disable_port(p);
}
spin_unlock_bh(&br->lock);
del_timer_sync(&br->tick);
br->topology_change = 0;
br->topology_change_detected = 0;
spin_unlock(&br->lock);
del_timer_sync(&br->hello_timer);
del_timer_sync(&br->topology_change_timer);
del_timer_sync(&br->tcn_timer);
del_timer_sync(&br->gc_timer);
}
/* called under bridge lock */
......@@ -108,10 +100,13 @@ void br_stp_disable_port(struct net_bridge_port *p)
p->state = BR_STATE_DISABLED;
p->topology_change_ack = 0;
p->config_pending = 0;
br_timer_clear(&p->message_age_timer);
br_timer_clear(&p->forward_delay_timer);
br_timer_clear(&p->hold_timer);
del_timer(&p->message_age_timer);
del_timer(&p->forward_delay_timer);
del_timer(&p->hold_timer);
br_configuration_update(br);
br_port_state_selection(br);
if (br_is_root_bridge(br) && !wasroot)
......
net/bridge/br_stp_timer.c
View file @ f5bda5bc
......@@ -20,51 +20,59 @@
#include "br_private.h"
#include "br_private_stp.h"
static void dump_bridge_id(bridge_id *id)
{
printk("%.2x%.2x.%.2x:%.2x:%.2x:%.2x:%.2x:%.2x", id->prio[0],
id->prio[1], id->addr[0], id->addr[1], id->addr[2], id->addr[3],
id->addr[4], id->addr[5]);
}
/* called under bridge lock */
static int br_is_designated_for_some_port(struct net_bridge *br)
static int br_is_designated_for_some_port(const struct net_bridge *br)
{
struct net_bridge_port *p;
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED &&
!memcmp(&p->designated_bridge, &br->bridge_id, 8))
!memcmp(&p->designated_bridge, &br->bridge_id, 8))
return 1;
}
return 0;
}
/* called under bridge lock */
static void br_hello_timer_expired(struct net_bridge *br)
static void br_hello_timer_expired(unsigned long arg)
{
br_config_bpdu_generation(br);
br_timer_set(&br->hello_timer, jiffies);
struct net_bridge *br = (struct net_bridge *)arg;
pr_debug("%s: hello timer expired\n", br->dev.name);
spin_lock_bh(&br->lock);
if (br->dev.flags & IFF_UP) {
br_config_bpdu_generation(br);
br->hello_timer.expires = jiffies + br->hello_time;
add_timer(&br->hello_timer);
}
spin_unlock_bh(&br->lock);
}
/* called under bridge lock */
static void br_message_age_timer_expired(struct net_bridge_port *p)
static void br_message_age_timer_expired(unsigned long arg)
{
struct net_bridge *br;
struct net_bridge_port *p = (struct net_bridge_port *) arg;
struct net_bridge *br = p->br;
const bridge_id *id = &p->designated_bridge;
int was_root;
br = p->br;
printk(KERN_INFO "%s: ", br->dev.name);
printk("neighbour ");
dump_bridge_id(&p->designated_bridge);
printk(" lost on port %i(%s)\n", p->port_no, p->dev->name);
if (p->state == BR_STATE_DISABLED)
return;
pr_info("%s: neighbor %.2x%.2x.%.2x:%.2x:%.2x:%.2x:%.2x:%.2x lost on port %d(%s)\n",
br->dev.name,
id->prio[0], id->prio[1],
id->addr[0], id->addr[1], id->addr[2],
id->addr[3], id->addr[4], id->addr[5],
p->port_no, p->dev->name);
/*
* According to the spec, the message age timer cannot be
* running when we are the root bridge. So.. this was_root
* check is redundant. I'm leaving it in for now, though.
*/
spin_lock_bh(&br->lock);
was_root = br_is_root_bridge(br);
br_become_designated_port(p);
......@@ -72,107 +80,101 @@ static void br_message_age_timer_expired(struct net_bridge_port *p)
br_port_state_selection(br);
if (br_is_root_bridge(br) && !was_root)
br_become_root_bridge(br);
spin_unlock_bh(&br->lock);
}
/* called under bridge lock */
static void br_forward_delay_timer_expired(struct net_bridge_port *p)
static void br_forward_delay_timer_expired(unsigned long arg)
{
if (p->state == BR_STATE_LISTENING) {
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name, "learning");
struct net_bridge_port *p = (struct net_bridge_port *) arg;
struct net_bridge *br = p->br;
pr_debug("%s: %d(%s) forward delay timer\n",
br->dev.name, p->port_no, p->dev->name);
spin_lock_bh(&br->lock);
if (p->state == BR_STATE_LISTENING) {
p->state = BR_STATE_LEARNING;
br_timer_set(&p->forward_delay_timer, jiffies);
p->forward_delay_timer.expires = jiffies + br->forward_delay;
add_timer(&p->forward_delay_timer);
} else if (p->state == BR_STATE_LEARNING) {
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
p->br->dev.name, p->port_no, p->dev->name, "forwarding");
p->state = BR_STATE_FORWARDING;
if (br_is_designated_for_some_port(p->br))
br_topology_change_detection(p->br);
if (br_is_designated_for_some_port(br))
br_topology_change_detection(br);
}
br_log_state(p);
spin_unlock_bh(&br->lock);
}
/* called under bridge lock */
static void br_tcn_timer_expired(struct net_bridge *br)
static void br_tcn_timer_expired(unsigned long arg)
{
printk(KERN_INFO "%s: retransmitting tcn bpdu\n", br->dev.name);
br_transmit_tcn(br);
br_timer_set(&br->tcn_timer, jiffies);
struct net_bridge *br = (struct net_bridge *) arg;
pr_debug("%s: tcn timer expired\n", br->dev.name);
spin_lock_bh(&br->lock);
if (br->dev.flags & IFF_UP) {
br_transmit_tcn(br);
br->tcn_timer.expires = jiffies + br->bridge_hello_time;
add_timer(&br->tcn_timer);
}
spin_unlock_bh(&br->lock);
}
/* called under bridge lock */
static void br_topology_change_timer_expired(struct net_bridge *br)
static void br_topology_change_timer_expired(unsigned long arg)
{
struct net_bridge *br = (struct net_bridge *) arg;
pr_debug("%s: topo change timer expired\n", br->dev.name);
spin_lock_bh(&br->lock);
br->topology_change_detected = 0;
br->topology_change = 0;
spin_unlock_bh(&br->lock);
}
/* called under bridge lock */
static void br_hold_timer_expired(struct net_bridge_port *p)
static void br_hold_timer_expired(unsigned long arg)
{
struct net_bridge_port *p = (struct net_bridge_port *) arg;
pr_debug("%s: %d(%s) hold timer expired\n",
p->br->dev.name, p->port_no, p->dev->name);
spin_lock_bh(&p->br->lock);
if (p->config_pending)
br_transmit_config(p);
spin_unlock_bh(&p->br->lock);
}
/* called under bridge lock */
static void br_check_port_timers(struct net_bridge_port *p)
static inline void br_timer_init(struct timer_list *timer,
void (*_function)(unsigned long),
unsigned long _data)
{
if (br_timer_has_expired(&p->message_age_timer, p->br->max_age)) {
br_timer_clear(&p->message_age_timer);
br_message_age_timer_expired(p);
}
if (br_timer_has_expired(&p->forward_delay_timer, p->br->forward_delay)) {
br_timer_clear(&p->forward_delay_timer);
br_forward_delay_timer_expired(p);
}
if (br_timer_has_expired(&p->hold_timer, BR_HOLD_TIME)) {
br_timer_clear(&p->hold_timer);
br_hold_timer_expired(p);
}
init_timer(timer);
timer->function = _function;
timer->data = _data;
}
/* called under bridge lock */
static void br_check_timers(struct net_bridge *br)
void br_stp_timer_init(struct net_bridge *br)
{
struct net_bridge_port *p;
if (br_timer_has_expired(&br->gc_timer, br->gc_interval)) {
br_timer_set(&br->gc_timer, jiffies);
br_fdb_cleanup(br);
}
br_timer_init(&br->hello_timer, br_hello_timer_expired,
(unsigned long) br);
if (br_timer_has_expired(&br->hello_timer, br->hello_time)) {
br_timer_clear(&br->hello_timer);
br_hello_timer_expired(br);
}
br_timer_init(&br->tcn_timer, br_tcn_timer_expired,
(unsigned long) br);
if (br_timer_has_expired(&br->tcn_timer, br->bridge_hello_time)) {
br_timer_clear(&br->tcn_timer);
br_tcn_timer_expired(br);
}
br_timer_init(&br->topology_change_timer,
br_topology_change_timer_expired,
(unsigned long) br);
if (br_timer_has_expired(&br->topology_change_timer, br->bridge_forward_delay + br->bridge_max_age)) {
br_timer_clear(&br->topology_change_timer);
br_topology_change_timer_expired(br);
}
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED)
br_check_port_timers(p);
}
br_timer_init(&br->gc_timer, br_fdb_cleanup, (unsigned long) br);
}
void br_tick(unsigned long __data)
void br_stp_port_timer_init(struct net_bridge_port *p)
{
struct net_bridge *br = (struct net_bridge *)__data;
if (spin_trylock_bh(&br->lock)) {
br_check_timers(br);
spin_unlock_bh(&br->lock);
}
br->tick.expires = jiffies + 1;
add_timer(&br->tick);
}
br_timer_init(&p->message_age_timer, br_message_age_timer_expired,
(unsigned long) p);
br_timer_init(&p->forward_delay_timer, br_forward_delay_timer_expired,
(unsigned long) p);
br_timer_init(&p->hold_timer, br_hold_timer_expired,
(unsigned long) p);
}
net/core/dev.c
View file @ f5bda5bc
......@@ -90,7 +90,6 @@
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <linux/skbuff.h>
#include <linux/brlock.h>
#include <net/sock.h>
#include <linux/rtnetlink.h>
#include <linux/proc_fs.h>
......@@ -170,8 +169,9 @@ const char *if_port_text[] = {
* 86DD IPv6
*/
static struct packet_type *ptype_base[16]; /* 16 way hashed list */
static struct packet_type *ptype_all; /* Taps */
static spinlock_t ptype_lock = SPIN_LOCK_UNLOCKED;
static struct list_head ptype_base[16]; /* 16 way hashed list */
static struct list_head ptype_all; /* Taps */
#ifdef OFFLINE_SAMPLE
static void sample_queue(unsigned long dummy);
......@@ -239,14 +239,17 @@ int netdev_nit;
* Add a protocol handler to the networking stack. The passed &packet_type
* is linked into kernel lists and may not be freed until it has been
* removed from the kernel lists.
*
* This call does not sleep therefore it can not
* guarantee all CPU's that are in middle of receiving packets
* will see the new packet type (until the next received packet).
*/
void dev_add_pack(struct packet_type *pt)
{
int hash;
br_write_lock_bh(BR_NETPROTO_LOCK);
spin_lock_bh(&ptype_lock);
#ifdef CONFIG_NET_FASTROUTE
/* Hack to detect packet socket */
if (pt->data && (long)(pt->data) != 1) {
......@@ -256,52 +259,76 @@ void dev_add_pack(struct packet_type *pt)
#endif
if (pt->type == htons(ETH_P_ALL)) {
netdev_nit++;
pt->next = ptype_all;
ptype_all = pt;
list_add_rcu(&pt->list, &ptype_all);
} else {
hash = ntohs(pt->type) & 15;
pt->next = ptype_base[hash];
ptype_base[hash] = pt;
list_add_rcu(&pt->list, &ptype_base[hash]);
}
br_write_unlock_bh(BR_NETPROTO_LOCK);
spin_unlock_bh(&ptype_lock);
}
extern void linkwatch_run_queue(void);
/**
* dev_remove_pack - remove packet handler
* __dev_remove_pack - remove packet handler
* @pt: packet type declaration
*
* Remove a protocol handler that was previously added to the kernel
* protocol handlers by dev_add_pack(). The passed &packet_type is removed
* from the kernel lists and can be freed or reused once this function
* returns.
* returns.
*
* The packet type might still be in use by receivers
* and must not be freed until after all the CPU's have gone
* through a quiescent state.
*/
void dev_remove_pack(struct packet_type *pt)
void __dev_remove_pack(struct packet_type *pt)
{
struct packet_type **pt1;
struct list_head *head;
struct packet_type *pt1;
br_write_lock_bh(BR_NETPROTO_LOCK);
spin_lock_bh(&ptype_lock);
if (pt->type == htons(ETH_P_ALL)) {
netdev_nit--;
pt1 = &ptype_all;
head = &ptype_all;
} else
pt1 = &ptype_base[ntohs(pt->type) & 15];
head = &ptype_base[ntohs(pt->type) & 15];
for (; *pt1; pt1 = &((*pt1)->next)) {
if (pt == *pt1) {
*pt1 = pt->next;
list_for_each_entry(pt1, head, list) {
if (pt == pt1) {
#ifdef CONFIG_NET_FASTROUTE
if (pt->data)
netdev_fastroute_obstacles--;
#endif
list_del_rcu(&pt->list);
goto out;
}
}
printk(KERN_WARNING "dev_remove_pack: %p not found.\n", pt);
out:
br_write_unlock_bh(BR_NETPROTO_LOCK);
spin_unlock_bh(&ptype_lock);
}
/**
* dev_remove_pack - remove packet handler
* @pt: packet type declaration
*
* Remove a protocol handler that was previously added to the kernel
* protocol handlers by dev_add_pack(). The passed &packet_type is removed
* from the kernel lists and can be freed or reused once this function
* returns.
*
* This call sleeps to guarantee that no CPU is looking at the packet
* type after return.
*/
void dev_remove_pack(struct packet_type *pt)
{
__dev_remove_pack(pt);
synchronize_net();
}
/******************************************************************************
......@@ -943,8 +970,8 @@ void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
struct packet_type *ptype;
do_gettimeofday(&skb->stamp);
br_read_lock(BR_NETPROTO_LOCK);
for (ptype = ptype_all; ptype; ptype = ptype->next) {
rcu_read_lock();
list_for_each_entry_rcu(ptype, &ptype_all, list) {
/* Never send packets back to the socket
* they originated from - MvS (miquels@drinkel.ow.org)
*/
......@@ -974,7 +1001,7 @@ void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
ptype->func(skb2, skb->dev, ptype);
}
}
br_read_unlock(BR_NETPROTO_LOCK);
rcu_read_unlock();
}
/* Calculate csum in the case, when packet is misrouted.
......@@ -1488,7 +1515,8 @@ int netif_receive_skb(struct sk_buff *skb)
skb->h.raw = skb->nh.raw = skb->data;
pt_prev = NULL;
for (ptype = ptype_all; ptype; ptype = ptype->next) {
rcu_read_lock();
list_for_each_entry_rcu(ptype, &ptype_all, list) {
if (!ptype->dev || ptype->dev == skb->dev) {
if (pt_prev) {
if (!pt_prev->data) {
......@@ -1511,17 +1539,15 @@ int netif_receive_skb(struct sk_buff *skb)
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
if (skb->dev->br_port) {
int ret;
ret = handle_bridge(skb, pt_prev);
if (br_handle_frame_hook(skb) == 0)
return ret;
goto out;
pt_prev = NULL;
}
#endif
for (ptype = ptype_base[ntohs(type) & 15]; ptype; ptype = ptype->next) {
list_for_each_entry_rcu(ptype, &ptype_base[ntohs(type)&15], list) {
if (ptype->type == type &&
(!ptype->dev || ptype->dev == skb->dev)) {
if (pt_prev) {
......@@ -1552,6 +1578,8 @@ int netif_receive_skb(struct sk_buff *skb)
ret = NET_RX_DROP;
}
out:
rcu_read_unlock();
return ret;
}
......@@ -1625,7 +1653,8 @@ static void net_rx_action(struct softirq_action *h)
unsigned long start_time = jiffies;
int budget = netdev_max_backlog;
br_read_lock(BR_NETPROTO_LOCK);
preempt_disable();
local_irq_disable();
while (!list_empty(&queue->poll_list)) {
......@@ -1654,7 +1683,7 @@ static void net_rx_action(struct softirq_action *h)
}
out:
local_irq_enable();
br_read_unlock(BR_NETPROTO_LOCK);
preempt_enable();
return;
softnet_break:
......@@ -1997,9 +2026,9 @@ int netdev_set_master(struct net_device *slave, struct net_device *master)
dev_hold(master);
}
br_write_lock_bh(BR_NETPROTO_LOCK);
slave->master = master;
br_write_unlock_bh(BR_NETPROTO_LOCK);
synchronize_net();
if (old)
dev_put(old);
......@@ -2663,8 +2692,8 @@ int netdev_finish_unregister(struct net_device *dev)
/* Synchronize with packet receive processing. */
void synchronize_net(void)
{
br_write_lock_bh(BR_NETPROTO_LOCK);
br_write_unlock_bh(BR_NETPROTO_LOCK);
might_sleep();
synchronize_kernel();
}
/**
......@@ -2848,6 +2877,10 @@ static int __init net_dev_init(void)
subsystem_register(&net_subsys);
INIT_LIST_HEAD(&ptype_all);
for (i = 0; i < 16; i++)
INIT_LIST_HEAD(&ptype_base[i]);
#ifdef CONFIG_NET_DIVERT
dv_init();
#endif /* CONFIG_NET_DIVERT */
......
net/core/wireless.c
View file @ f5bda5bc
......@@ -53,6 +53,7 @@
/***************************** INCLUDES *****************************/
#include <linux/config.h> /* Not needed ??? */
#include <linux/module.h>
#include <linux/types.h> /* off_t */
#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */
#include <linux/proc_fs.h>
......
net/ipv4/af_inet.c
View file @ f5bda5bc
......@@ -1013,7 +1013,7 @@ void inet_register_protosw(struct inet_protosw *p)
out:
spin_unlock_bh(&inetsw_lock);
synchronize_kernel();
synchronize_net();
return;
......@@ -1040,7 +1040,7 @@ void inet_unregister_protosw(struct inet_protosw *p)
list_del_rcu(&p->list);
spin_unlock_bh(&inetsw_lock);
synchronize_kernel();
synchronize_net();
}
}
......
net/ipv4/ip_output.c
View file @ f5bda5bc
......@@ -685,16 +685,6 @@ skb_can_coalesce(struct sk_buff *skb, int i, struct page *page, int off)
return 0;
}
static void
skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page, int off, int size)
{
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
frag->page = page;
frag->page_offset = off;
frag->size = size;
skb_shinfo(skb)->nr_frags = i+1;
}
static inline unsigned int
csum_page(struct page *page, int offset, int copy)
{
......
net/ipv4/ipcomp.c
View file @ f5bda5bc
......@@ -269,6 +269,67 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
xfrm_state_put(x);
}
/* We always hold one tunnel user reference to indicate a tunnel */
static struct xfrm_state *ipcomp_tunnel_create(struct xfrm_state *x)
{
struct xfrm_state *t;
t = xfrm_state_alloc();
if (t == NULL)
goto out;
t->id.proto = IPPROTO_IPIP;
t->id.spi = x->props.saddr.a4;
t->id.daddr.a4 = x->id.daddr.a4;
memcpy(&t->sel, &x->sel, sizeof(t->sel));
t->props.family = AF_INET;
t->props.mode = 1;
t->props.saddr.a4 = x->props.saddr.a4;
t->type = xfrm_get_type(IPPROTO_IPIP, t->props.family);
if (t->type == NULL)
goto error;
if (t->type->init_state(t, NULL))
goto error;
t->km.state = XFRM_STATE_VALID;
atomic_set(&t->tunnel_users, 1);
out:
return t;
error:
xfrm_state_put(t);
t = NULL;
goto out;
}
/*
* Must be protected by xfrm_cfg_sem. State and tunnel user references are
* always incremented on success.
*/
static int ipcomp_tunnel_attach(struct xfrm_state *x)
{
int err = 0;
struct xfrm_state *t;
t = xfrm_state_lookup((xfrm_address_t *)&x->id.daddr.a4,
x->props.saddr.a4, IPPROTO_IPIP, AF_INET);
if (!t) {
t = ipcomp_tunnel_create(x);
if (!t) {
err = -EINVAL;
goto out;
}
xfrm_state_insert(t);
xfrm_state_hold(t);
}
x->tunnel = t;
atomic_inc(&t->tunnel_users);
out:
return err;
}
static void ipcomp_free_data(struct ipcomp_data *ipcd)
{
if (ipcd->tfm)
......@@ -308,6 +369,12 @@ static int ipcomp_init_state(struct xfrm_state *x, void *args)
if (!ipcd->tfm)
goto error;
if (x->props.mode) {
err = ipcomp_tunnel_attach(x);
if (err)
goto error;
}
calg_desc = xfrm_calg_get_byname(x->calg->alg_name);
BUG_ON(!calg_desc);
ipcd->threshold = calg_desc->uinfo.comp.threshold;
......
net/ipv4/netfilter/ip_conntrack_core.c
View file @ f5bda5bc
......@@ -1188,12 +1188,9 @@ ip_ct_gather_frags(struct sk_buff *skb)
local_bh_enable();
if (!skb) {
if (sk) sock_put(sk);
if (sk)
sock_put(sk);
return skb;
} else if (skb_is_nonlinear(skb) && skb_linearize(skb, GFP_ATOMIC) != 0) {
kfree_skb(skb);
if (sk) sock_put(sk);
return NULL;
}
if (sk) {
......
net/ipv4/netfilter/ip_fw_compat.c
View file @ f5bda5bc
......@@ -15,34 +15,10 @@ struct notifier_block;
#include <linux/netfilter_ipv4/compat_firewall.h>
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_core.h>
#include "ip_fw_compat.h"
static struct firewall_ops *fwops;
/* From ip_fw_compat_redir.c */
extern unsigned int
do_redirect(struct sk_buff *skb,
const struct net_device *dev,
u_int16_t redirpt);
extern void
check_for_redirect(struct sk_buff *skb);
extern void
check_for_unredirect(struct sk_buff *skb);
/* From ip_fw_compat_masq.c */
extern unsigned int
do_masquerade(struct sk_buff **pskb, const struct net_device *dev);
extern unsigned int
check_for_masq_error(struct sk_buff **pskb);
extern unsigned int
check_for_demasq(struct sk_buff **pskb);
extern int __init masq_init(void);
extern void masq_cleanup(void);
/* They call these; we do what they want. */
int register_firewall(int pf, struct firewall_ops *fw)
{
......
net/ipv4/netfilter/ip_fw_compat.h 0 → 100644
View file @ f5bda5bc
#ifndef _LINUX_IP_FW_COMPAT_H
#define _LINUX_IP_FW_COMPAT_H
/* From ip_fw_compat_redir.c */
extern unsigned int
do_redirect(struct sk_buff *skb,
const struct net_device *dev,
u_int16_t redirpt);
extern void
check_for_redirect(struct sk_buff *skb);
extern void
check_for_unredirect(struct sk_buff *skb);
/* From ip_fw_compat_masq.c */
extern unsigned int
do_masquerade(struct sk_buff **pskb, const struct net_device *dev);
extern void check_for_masq_error(struct sk_buff **pskb);
extern unsigned int
check_for_demasq(struct sk_buff **pskb);
extern int __init masq_init(void);
extern void masq_cleanup(void);
#endif /* _LINUX_IP_FW_COMPAT_H */
net/ipv4/netfilter/ip_fw_compat_masq.c
View file @ f5bda5bc
......@@ -25,6 +25,7 @@
#include <linux/netfilter_ipv4/ip_nat.h>
#include <linux/netfilter_ipv4/ip_nat_core.h>
#include <linux/netfilter_ipv4/listhelp.h>
#include "ip_fw_compat.h"
#if 0
#define DEBUGP printk
......
net/ipv4/netfilter/ip_fw_compat_redir.c
View file @ f5bda5bc
......@@ -28,6 +28,7 @@ static DECLARE_LOCK(redir_lock);
#define ASSERT_WRITE_LOCK(x) MUST_BE_LOCKED(&redir_lock)
#include <linux/netfilter_ipv4/listhelp.h>
#include "ip_fw_compat.h"
#if 0
#define DEBUGP printk
......
net/ipv4/xfrm4_tunnel.c
View file @ f5bda5bc
......@@ -163,36 +163,32 @@ static int ipip_rcv(struct sk_buff *skb)
skb->nh.iph->saddr,
IPPROTO_IPIP, AF_INET);
if (x) {
spin_lock(&x->lock);
if (!x)
goto drop;
if (unlikely(x->km.state != XFRM_STATE_VALID))
goto drop_unlock;
}
spin_lock(&x->lock);
if (unlikely(x->km.state != XFRM_STATE_VALID))
goto drop_unlock;
err = ipip_xfrm_rcv(x, NULL, skb);
if (err)
goto drop_unlock;
if (x) {
x->curlft.bytes += skb->len;
x->curlft.packets++;
spin_unlock(&x->lock);
xfrm_state_put(x);
}
return 0;
x->curlft.bytes += skb->len;
x->curlft.packets++;
spin_unlock(&x->lock);
xfrm_state_put(x);
out:
return err;
drop_unlock:
if (x) {
spin_unlock(&x->lock);
xfrm_state_put(x);
}
spin_unlock(&x->lock);
xfrm_state_put(x);
drop:
err = NET_RX_DROP;
kfree_skb(skb);
out:
return 0;
goto out;
}
static void ipip_err(struct sk_buff *skb, u32 info)
......
net/ipv6/af_inet6.c
View file @ f5bda5bc
......@@ -637,7 +637,7 @@ inet6_unregister_protosw(struct inet_protosw *p)
list_del_rcu(&p->list);
spin_unlock_bh(&inetsw6_lock);
synchronize_kernel();
synchronize_net();
}
}
......
net/ipv6/icmp.c
View file @ f5bda5bc
......@@ -28,6 +28,7 @@
* YOSHIFUJI Hideaki @USAGI: added sysctl for icmp rate limit.
* Randy Dunlap and
* YOSHIFUJI Hideaki @USAGI: Per-interface statistics support
* Kazunori MIYAZAWA @USAGI: change output process to use ip6_append_data
*/
#include <linux/module.h>
......@@ -104,42 +105,6 @@ static __inline__ void icmpv6_xmit_unlock(void)
spin_unlock_bh(&icmpv6_socket->sk->lock.slock);
}
/*
* getfrag callback
*/
static int icmpv6_getfrag(const void *data, struct in6_addr *saddr,
char *buff, unsigned int offset, unsigned int len)
{
struct icmpv6_msg *msg = (struct icmpv6_msg *) data;
struct icmp6hdr *icmph;
__u32 csum;
if (offset) {
csum = skb_copy_and_csum_bits(msg->skb, msg->offset +
(offset - sizeof(struct icmp6hdr)),
buff, len, msg->csum);
msg->csum = csum;
return 0;
}
csum = csum_partial_copy_nocheck((void *) &msg->icmph, buff,
sizeof(struct icmp6hdr), msg->csum);
csum = skb_copy_and_csum_bits(msg->skb, msg->offset,
buff + sizeof(struct icmp6hdr),
len - sizeof(struct icmp6hdr), csum);
icmph = (struct icmp6hdr *) buff;
icmph->icmp6_cksum = csum_ipv6_magic(saddr, msg->daddr, msg->len,
IPPROTO_ICMPV6, csum);
return 0;
}
/*
* Slightly more convenient version of icmpv6_send.
*/
......@@ -242,22 +207,74 @@ static __inline__ int opt_unrec(struct sk_buff *skb, __u32 offset)
return (optval&0xC0) == 0x80;
}
int icmpv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct icmp6hdr *thdr, int len)
{
struct sk_buff *skb;
struct icmp6hdr *icmp6h;
int err = 0;
if ((skb = skb_peek(&sk->write_queue)) == NULL)
goto out;
icmp6h = (struct icmp6hdr*) skb->h.raw;
memcpy(icmp6h, thdr, sizeof(struct icmp6hdr));
icmp6h->icmp6_cksum = 0;
if (skb_queue_len(&sk->write_queue) == 1) {
skb->csum = csum_partial((char *)icmp6h,
sizeof(struct icmp6hdr), skb->csum);
icmp6h->icmp6_cksum = csum_ipv6_magic(fl->fl6_src,
fl->fl6_dst,
len, fl->proto, skb->csum);
} else {
u32 tmp_csum = 0;
skb_queue_walk(&sk->write_queue, skb) {
tmp_csum = csum_add(tmp_csum, skb->csum);
}
tmp_csum = csum_partial((char *)icmp6h,
sizeof(struct icmp6hdr), tmp_csum);
tmp_csum = csum_ipv6_magic(fl->fl6_src,
fl->fl6_dst,
len, fl->proto, tmp_csum);
icmp6h->icmp6_cksum = tmp_csum;
}
if (icmp6h->icmp6_cksum == 0)
icmp6h->icmp6_cksum = -1;
ip6_push_pending_frames(sk);
out:
return err;
}
static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb)
{
struct sk_buff *org_skb = (struct sk_buff *)from;
__u32 csum = 0;
csum = skb_copy_and_csum_bits(org_skb, offset, to, len, csum);
skb->csum = csum_block_add(skb->csum, csum, odd);
return 0;
}
/*
* Send an ICMP message in response to a packet in error
*/
void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
struct net_device *dev)
{
struct inet6_dev *idev;
struct ipv6hdr *hdr = skb->nh.ipv6h;
struct sock *sk = icmpv6_socket->sk;
struct in6_addr *saddr = NULL;
int iif = 0;
struct icmpv6_msg msg;
struct ipv6_pinfo *np = inet6_sk(sk);
struct in6_addr *saddr = NULL, *tmp_saddr = NULL;
struct dst_entry *dst;
struct icmp6hdr tmp_hdr;
struct flowi fl;
int iif = 0;
int addr_type = 0;
int len;
int len, plen;
int hlimit = -1;
int err = 0;
if ((u8*)hdr < skb->head || (u8*)(hdr+1) > skb->tail)
return;
......@@ -328,36 +345,48 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
if (!icmpv6_xrlim_allow(sk, type, &fl))
goto out;
/*
* ok. kick it. checksum will be provided by the
* getfrag_t callback.
*/
tmp_hdr.icmp6_type = type;
tmp_hdr.icmp6_code = code;
tmp_hdr.icmp6_cksum = 0;
tmp_hdr.icmp6_pointer = htonl(info);
msg.icmph.icmp6_type = type;
msg.icmph.icmp6_code = code;
msg.icmph.icmp6_cksum = 0;
msg.icmph.icmp6_pointer = htonl(info);
if (!fl.oif && ipv6_addr_is_multicast(fl.fl6_dst))
fl.oif = np->mcast_oif;
msg.skb = skb;
msg.offset = skb->nh.raw - skb->data;
msg.csum = 0;
msg.daddr = &hdr->saddr;
err = ip6_dst_lookup(sk, &dst, &fl, &tmp_saddr);
if (err) goto out;
len = skb->len - msg.offset + sizeof(struct icmp6hdr);
len = min_t(unsigned int, len, IPV6_MIN_MTU - sizeof(struct ipv6hdr));
if (hlimit < 0) {
if (ipv6_addr_is_multicast(fl.fl6_dst))
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
if (hlimit < 0)
hlimit = ((struct rt6_info*)dst)->rt6i_hoplimit;
}
plen = skb->nh.raw - skb->data;
__skb_pull(skb, plen);
len = skb->len;
len = min_t(unsigned int, len, IPV6_MIN_MTU - sizeof(struct ipv6hdr) -sizeof(struct icmp6hdr));
if (len < 0) {
if (net_ratelimit())
printk(KERN_DEBUG "icmp: len problem\n");
__skb_push(skb, plen);
goto out;
}
msg.len = len;
idev = in6_dev_get(skb->dev);
ip6_build_xmit(sk, icmpv6_getfrag, &msg, &fl, len, NULL, -1,
MSG_DONTWAIT);
err = ip6_append_data(sk, icmpv6_getfrag, skb, len + sizeof(struct icmp6hdr), sizeof(struct icmp6hdr),
hlimit, NULL, &fl, (struct rt6_info*)dst, MSG_DONTWAIT);
if (err) {
ip6_flush_pending_frames(sk);
goto out;
}
err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, len + sizeof(struct icmp6hdr));
__skb_push(skb, plen);
if (type >= ICMPV6_DEST_UNREACH && type <= ICMPV6_PARAMPROB)
ICMP6_INC_STATS_OFFSET_BH(idev, Icmp6OutDestUnreachs, type - ICMPV6_DEST_UNREACH);
ICMP6_INC_STATS_BH(idev, Icmp6OutMsgs);
......@@ -365,6 +394,7 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
if (likely(idev != NULL))
in6_dev_put(idev);
out:
if (tmp_saddr) kfree(tmp_saddr);
icmpv6_xmit_unlock();
}
......@@ -372,10 +402,14 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
{
struct sock *sk = icmpv6_socket->sk;
struct inet6_dev *idev;
struct ipv6_pinfo *np = inet6_sk(sk);
struct in6_addr *saddr = NULL, *tmp_saddr = NULL;
struct icmp6hdr *icmph = (struct icmp6hdr *) skb->h.raw;
struct in6_addr *saddr;
struct icmpv6_msg msg;
struct icmp6hdr tmp_hdr;
struct flowi fl;
struct dst_entry *dst;
int err = 0;
int hlimit = -1;
saddr = &skb->nh.ipv6h->daddr;
......@@ -383,39 +417,55 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
ipv6_chk_acast_addr(0, saddr))
saddr = NULL;
msg.icmph.icmp6_type = ICMPV6_ECHO_REPLY;
msg.icmph.icmp6_code = 0;
msg.icmph.icmp6_cksum = 0;
msg.icmph.icmp6_identifier = icmph->icmp6_identifier;
msg.icmph.icmp6_sequence = icmph->icmp6_sequence;
msg.skb = skb;
msg.offset = 0;
msg.csum = 0;
msg.len = skb->len + sizeof(struct icmp6hdr);
msg.daddr = &skb->nh.ipv6h->saddr;
memcpy(&tmp_hdr, icmph, sizeof(tmp_hdr));
tmp_hdr.icmp6_type = ICMPV6_ECHO_REPLY;
fl.proto = IPPROTO_ICMPV6;
fl.fl6_dst = msg.daddr;
fl.fl6_dst = &skb->nh.ipv6h->saddr;
fl.fl6_src = saddr;
fl.oif = skb->dev->ifindex;
fl.fl6_flowlabel = 0;
fl.fl_icmp_type = ICMPV6_ECHO_REPLY;
fl.fl_icmp_code = 0;
icmpv6_xmit_lock();
if (!fl.oif && ipv6_addr_is_multicast(fl.nl_u.ip6_u.daddr))
fl.oif = np->mcast_oif;
err = ip6_dst_lookup(sk, &dst, &fl, &tmp_saddr);
if (err) goto out;
if (hlimit < 0) {
if (ipv6_addr_is_multicast(fl.fl6_dst))
hlimit = np->mcast_hops;
else
hlimit = np->hop_limit;
if (hlimit < 0)
hlimit = ((struct rt6_info*)dst)->rt6i_hoplimit;
}
idev = in6_dev_get(skb->dev);
icmpv6_xmit_lock();
err = ip6_append_data(sk, icmpv6_getfrag, skb, skb->len + sizeof(struct icmp6hdr),
sizeof(struct icmp6hdr), hlimit, NULL, &fl,
(struct rt6_info*)dst, MSG_DONTWAIT);
ip6_build_xmit(sk, icmpv6_getfrag, &msg, &fl, msg.len, NULL, -1,
MSG_DONTWAIT);
ICMP6_INC_STATS_BH(idev, Icmp6OutEchoReplies);
ICMP6_INC_STATS_BH(idev, Icmp6OutMsgs);
if (err) {
ip6_flush_pending_frames(sk);
goto out;
}
err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, skb->len + sizeof(struct icmp6hdr));
icmpv6_xmit_unlock();
ICMP6_INC_STATS_BH(idev, Icmp6OutEchoReplies);
ICMP6_INC_STATS_BH(idev, Icmp6OutMsgs);
if (likely(idev != NULL))
in6_dev_put(idev);
out:
if (tmp_saddr) kfree(tmp_saddr);
icmpv6_xmit_unlock();
}
static void icmpv6_notify(struct sk_buff *skb, int type, int code, u32 info)
......
net/ipv6/ip6_output.c
View file @ f5bda5bc
This diff is collapsed.
net/ipv6/raw.c
View file @ f5bda5bc
......@@ -12,6 +12,7 @@
* Fixes:
* Hideaki YOSHIFUJI : sin6_scope_id support
* YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance)
* Kazunori MIYAZAWA @USAGI: change process style to use ip6_append_data
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
......@@ -29,6 +30,8 @@
#include <linux/netdevice.h>
#include <linux/if_arp.h>
#include <linux/icmpv6.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
#include <asm/uaccess.h>
#include <asm/ioctls.h>
......@@ -438,87 +441,115 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg
goto out_free;
}
/*
* Sending...
*/
static int rawv6_push_pending_frames(struct sock *sk, struct flowi *fl, struct raw6_opt *opt, int len)
{
struct sk_buff *skb;
int err = 0;
u16 *csum;
struct rawv6_fakehdr {
struct iovec *iov;
struct sock *sk;
__u32 len;
__u32 cksum;
__u32 proto;
struct in6_addr *daddr;
};
if ((skb = skb_peek(&sk->write_queue)) == NULL)
goto out;
static int rawv6_getfrag(const void *data, struct in6_addr *saddr,
char *buff, unsigned int offset, unsigned int len)
{
struct iovec *iov = (struct iovec *) data;
if (opt->offset + 1 < len)
csum = (u16 *)(skb->h.raw + opt->offset);
else {
err = -EINVAL;
goto out;
}
if (skb_queue_len(&sk->write_queue) == 1) {
/*
* Only one fragment on the socket.
*/
/* should be check HW csum miyazawa */
*csum = csum_ipv6_magic(fl->fl6_src,
fl->fl6_dst,
len, fl->proto, skb->csum);
} else {
u32 tmp_csum = 0;
skb_queue_walk(&sk->write_queue, skb) {
tmp_csum = csum_add(tmp_csum, skb->csum);
}
return memcpy_fromiovecend(buff, iov, offset, len);
tmp_csum = csum_ipv6_magic(fl->fl6_src,
fl->fl6_dst,
len, fl->proto, tmp_csum);
*csum = tmp_csum;
}
if (*csum == 0)
*csum = -1;
ip6_push_pending_frames(sk);
out:
return err;
}
static int rawv6_frag_cksum(const void *data, struct in6_addr *addr,
char *buff, unsigned int offset,
unsigned int len)
static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
struct flowi *fl, struct rt6_info *rt,
unsigned int flags)
{
struct rawv6_fakehdr *hdr = (struct rawv6_fakehdr *) data;
if (csum_partial_copy_fromiovecend(buff, hdr->iov, offset,
len, &hdr->cksum))
return -EFAULT;
if (offset == 0) {
struct sock *sk;
struct raw6_opt *opt;
struct in6_addr *daddr;
sk = hdr->sk;
opt = raw6_sk(sk);
struct inet_opt *inet = inet_sk(sk);
struct ipv6hdr *iph;
struct sk_buff *skb;
unsigned int hh_len;
int err;
if (hdr->daddr)
daddr = hdr->daddr;
else
daddr = addr + 1;
hdr->cksum = csum_ipv6_magic(addr, daddr, hdr->len,
hdr->proto, hdr->cksum);
if (opt->offset + 1 < len) {
__u16 *csum;
csum = (__u16 *) (buff + opt->offset);
if (*csum) {
/* in case cksum was not initialized */
__u32 sum = hdr->cksum;
sum += *csum;
*csum = hdr->cksum = (sum + (sum>>16));
} else {
*csum = hdr->cksum;
}
} else {
if (net_ratelimit())
printk(KERN_DEBUG "icmp: cksum offset too big\n");
return -EINVAL;
}
}
return 0;
}
if (length > rt->u.dst.dev->mtu) {
ipv6_local_error(sk, EMSGSIZE, fl, rt->u.dst.dev->mtu);
return -EMSGSIZE;
}
if (flags&MSG_PROBE)
goto out;
hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
skb = sock_alloc_send_skb(sk, length+hh_len+15,
flags&MSG_DONTWAIT, &err);
if (skb == NULL)
goto error;
skb_reserve(skb, hh_len);
skb->priority = sk->priority;
skb->dst = dst_clone(&rt->u.dst);
skb->nh.ipv6h = iph = (struct ipv6hdr *)skb_put(skb, length);
skb->ip_summed = CHECKSUM_NONE;
skb->h.raw = skb->nh.raw;
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
dst_output);
if (err > 0)
err = inet->recverr ? net_xmit_errno(err) : 0;
if (err)
goto error;
out:
return 0;
error_fault:
err = -EFAULT;
kfree_skb(skb);
error:
IP6_INC_STATS(Ip6OutDiscards);
return err;
}
static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, int len)
{
struct ipv6_txoptions opt_space;
struct sockaddr_in6 * sin6 = (struct sockaddr_in6 *) msg->msg_name;
struct in6_addr *daddr, *saddr = NULL;
struct inet_opt *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct raw6_opt *raw_opt = raw6_sk(sk);
struct ipv6_txoptions *opt = NULL;
struct ip6_flowlabel *flowlabel = NULL;
struct dst_entry *dst = NULL;
struct flowi fl;
int addr_len = msg->msg_namelen;
struct in6_addr *daddr;
struct raw6_opt *raw_opt;
int hlimit = -1;
u16 proto;
int err;
......@@ -552,6 +583,8 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg
if (!proto)
proto = inet->num;
else if (proto != inet->num)
return(-EINVAL);
if (proto > 255)
return(-EINVAL);
......@@ -590,6 +623,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg
* unspecfied destination address
* treated as error... is this correct ?
*/
fl6_sock_release(flowlabel);
return(-EINVAL);
}
......@@ -619,39 +653,71 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg
if (flowlabel)
opt = fl6_merge_options(&opt_space, flowlabel, opt);
raw_opt = raw6_sk(sk);
fl.proto = proto;
fl.fl6_dst = daddr;
if (fl.fl6_src == NULL && !ipv6_addr_any(&np->saddr))
fl.fl6_src = &np->saddr;
fl.fl_icmp_type = 0;
fl.fl_icmp_code = 0;
if (raw_opt->checksum) {
struct rawv6_fakehdr hdr;
hdr.iov = msg->msg_iov;
hdr.sk = sk;
hdr.len = len;
hdr.cksum = 0;
hdr.proto = proto;
if (opt && opt->srcrt)
hdr.daddr = daddr;
/* merge ip6_build_xmit from ip6_output */
if (opt && opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
fl.fl6_dst = rt0->addr;
}
if (!fl.oif && ipv6_addr_is_multicast(fl.nl_u.ip6_u.daddr))
fl.oif = np->mcast_oif;
err = ip6_dst_lookup(sk, &dst, &fl, &saddr);
if (err) goto out;
if (hlimit < 0) {
if (ipv6_addr_is_multicast(fl.fl6_dst))
hlimit = np->mcast_hops;
else
hdr.daddr = NULL;
hlimit = np->hop_limit;
if (hlimit < 0)
hlimit = ((struct rt6_info*)dst)->rt6i_hoplimit;
}
err = ip6_build_xmit(sk, rawv6_frag_cksum, &hdr, &fl, len,
opt, hlimit, msg->msg_flags);
if (msg->msg_flags&MSG_CONFIRM)
goto do_confirm;
back_from_confirm:
if (inet->hdrincl) {
err = rawv6_send_hdrinc(sk, msg->msg_iov, len, &fl, (struct rt6_info*)dst, msg->msg_flags);
} else {
err = ip6_build_xmit(sk, rawv6_getfrag, msg->msg_iov, &fl, len,
opt, hlimit, msg->msg_flags);
lock_sock(sk);
err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, len, 0,
hlimit, opt, &fl, (struct rt6_info*)dst, msg->msg_flags);
if (err)
ip6_flush_pending_frames(sk);
else if (!(msg->msg_flags & MSG_MORE)) {
if (raw_opt->checksum) {
err = rawv6_push_pending_frames(sk, &fl, raw_opt, len);
} else {
err = ip6_push_pending_frames(sk);
}
}
}
done:
ip6_dst_store(sk, dst, fl.nl_u.ip6_u.daddr == &np->daddr ? &np->daddr : NULL);
if (err > 0)
err = np->recverr ? net_xmit_errno(err) : 0;
release_sock(sk);
out:
fl6_sock_release(flowlabel);
if (saddr) kfree(saddr);
return err<0?err:len;
do_confirm:
dst_confirm(dst);
if (!(msg->msg_flags & MSG_PROBE) || len)
goto back_from_confirm;
err = 0;
goto done;
}
static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
......
net/ipv6/udp.c
View file @ f5bda5bc
This diff is collapsed.
net/key/af_key.c
View file @ f5bda5bc
......@@ -1241,7 +1241,8 @@ static int pfkey_add(struct sock *sk, struct sk_buff *skb, struct sadb_msg *hdr,
}
}
if (x1 && x1->id.spi && hdr->sadb_msg_type == SADB_ADD) {
if (x1 && ((x1->id.spi && hdr->sadb_msg_type == SADB_ADD) ||
(hdr->sadb_msg_type == SADB_UPDATE && xfrm_state_kern(x1)))) {
x->km.state = XFRM_STATE_DEAD;
xfrm_state_put(x);
xfrm_state_put(x1);
......@@ -1286,6 +1287,11 @@ static int pfkey_delete(struct sock *sk, struct sk_buff *skb, struct sadb_msg *h
if (x == NULL)
return -ESRCH;
if (xfrm_state_kern(x)) {
xfrm_state_put(x);
return -EPERM;
}
xfrm_state_delete(x);
xfrm_state_put(x);
......
net/netsyms.c
View file @ f5bda5bc
......@@ -304,6 +304,7 @@ EXPORT_SYMBOL(xfrm_state_register_afinfo);
EXPORT_SYMBOL(xfrm_state_unregister_afinfo);
EXPORT_SYMBOL(xfrm_state_get_afinfo);
EXPORT_SYMBOL(xfrm_state_put_afinfo);
EXPORT_SYMBOL(xfrm_state_delete_tunnel);
EXPORT_SYMBOL(xfrm_replay_check);
EXPORT_SYMBOL(xfrm_replay_advance);
EXPORT_SYMBOL(xfrm_check_selectors);
......@@ -466,6 +467,8 @@ EXPORT_SYMBOL(sysctl_tcp_tw_recycle);
EXPORT_SYMBOL(sysctl_max_syn_backlog);
#endif
EXPORT_SYMBOL(ip_generic_getfrag);
#endif
EXPORT_SYMBOL(tcp_read_sock);
......@@ -570,6 +573,7 @@ EXPORT_SYMBOL(netif_rx);
EXPORT_SYMBOL(netif_receive_skb);
EXPORT_SYMBOL(dev_add_pack);
EXPORT_SYMBOL(dev_remove_pack);
EXPORT_SYMBOL(__dev_remove_pack);
EXPORT_SYMBOL(dev_get);
EXPORT_SYMBOL(dev_alloc);
EXPORT_SYMBOL(dev_alloc_name);
......
net/packet/af_packet.c
View file @ f5bda5bc
......@@ -774,6 +774,7 @@ static int packet_release(struct socket *sock)
*/
dev_remove_pack(&po->prot_hook);
po->running = 0;
po->num = 0;
__sock_put(sk);
}
......@@ -819,9 +820,12 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, int protocol)
spin_lock(&po->bind_lock);
if (po->running) {
dev_remove_pack(&po->prot_hook);
__sock_put(sk);
po->running = 0;
po->num = 0;
spin_unlock(&po->bind_lock);
dev_remove_pack(&po->prot_hook);
spin_lock(&po->bind_lock);
}
po->num = protocol;
......@@ -1374,7 +1378,7 @@ static int packet_notifier(struct notifier_block *this, unsigned long msg, void
if (dev->ifindex == po->ifindex) {
spin_lock(&po->bind_lock);
if (po->running) {
dev_remove_pack(&po->prot_hook);
__dev_remove_pack(&po->prot_hook);
__sock_put(sk);
po->running = 0;
sk->err = ENETDOWN;
......@@ -1618,9 +1622,14 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req, int closing
/* Detach socket from network */
spin_lock(&po->bind_lock);
if (po->running)
dev_remove_pack(&po->prot_hook);
if (po->running) {
__dev_remove_pack(&po->prot_hook);
po->num = 0;
po->running = 0;
}
spin_unlock(&po->bind_lock);
synchronize_net();
err = -EBUSY;
if (closing || atomic_read(&po->mapped) == 0) {
......
net/sched/sch_ingress.c
View file @ f5bda5bc
......@@ -222,11 +222,6 @@ used on the egress (might slow things for an iota)
*/
if (dev->qdisc_ingress) {
/* FIXME: Push down to ->enqueue functions --RR */
if (skb_is_nonlinear(*pskb)
&& skb_linearize(*pskb, GFP_ATOMIC) != 0)
return NF_DROP;
spin_lock(&dev->queue_lock);
if ((q = dev->qdisc_ingress) != NULL)
fwres = q->enqueue(skb, q);
......
net/xfrm/xfrm_state.c
View file @ f5bda5bc
......@@ -172,6 +172,7 @@ struct xfrm_state *xfrm_state_alloc(void)
if (x) {
memset(x, 0, sizeof(struct xfrm_state));
atomic_set(&x->refcnt, 1);
atomic_set(&x->tunnel_users, 0);
INIT_LIST_HEAD(&x->bydst);
INIT_LIST_HEAD(&x->byspi);
init_timer(&x->timer);
......@@ -234,6 +235,7 @@ static void __xfrm_state_delete(struct xfrm_state *x)
void xfrm_state_delete(struct xfrm_state *x)
{
xfrm_state_delete_tunnel(x);
spin_lock_bh(&x->lock);
__xfrm_state_delete(x);
spin_unlock_bh(&x->lock);
......@@ -248,7 +250,8 @@ void xfrm_state_flush(u8 proto)
for (i = 0; i < XFRM_DST_HSIZE; i++) {
restart:
list_for_each_entry(x, xfrm_state_bydst+i, bydst) {
if (proto == IPSEC_PROTO_ANY || x->id.proto == proto) {
if (!xfrm_state_kern(x) &&
(proto == IPSEC_PROTO_ANY || x->id.proto == proto)) {
xfrm_state_hold(x);
spin_unlock_bh(&xfrm_state_lock);
......@@ -790,6 +793,20 @@ void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo)
read_unlock(&afinfo->lock);
}
/* Temporarily located here until net/xfrm/xfrm_tunnel.c is created */
void xfrm_state_delete_tunnel(struct xfrm_state *x)
{
if (x->tunnel) {
struct xfrm_state *t = x->tunnel;
if (atomic_read(&t->tunnel_users) == 2)
xfrm_state_delete(t);
atomic_dec(&t->tunnel_users);
xfrm_state_put(t);
x->tunnel = NULL;
}
}
void __init xfrm_state_init(void)
{
int i;
......
net/xfrm/xfrm_user.c
View file @ f5bda5bc
......@@ -281,6 +281,11 @@ static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
if (x == NULL)
return -ESRCH;
if (xfrm_state_kern(x)) {
xfrm_state_put(x);
return -EPERM;
}
xfrm_state_delete(x);
xfrm_state_put(x);
......
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