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Diffstat (limited to 'net/ax25')
-rw-r--r--net/ax25/af_ax25.c65
-rw-r--r--net/ax25/ax25_dev.c4
-rw-r--r--net/ax25/ax25_ds_timer.c4
-rw-r--r--net/ax25/ax25_ip.c3
-rw-r--r--net/ax25/ax25_out.c22
-rw-r--r--net/ax25/ax25_route.c72
-rw-r--r--net/ax25/ax25_subr.c10
-rw-r--r--net/ax25/ax25_timer.c24
8 files changed, 73 insertions, 131 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index d6f9fae06a9d..6ef8b2a57a9b 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -287,7 +287,7 @@ void ax25_destroy_socket(ax25_cb *);
*/
static void ax25_destroy_timer(struct timer_list *t)
{
- ax25_cb *ax25 = from_timer(ax25, t, dtimer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, dtimer);
struct sock *sk;
sk=ax25->sk;
@@ -467,7 +467,7 @@ einval_put:
goto out_put;
}
-static void ax25_fillin_cb_from_dev(ax25_cb *ax25, ax25_dev *ax25_dev)
+static void ax25_fillin_cb_from_dev(ax25_cb *ax25, const ax25_dev *ax25_dev)
{
ax25->rtt = msecs_to_jiffies(ax25_dev->values[AX25_VALUES_T1]) / 2;
ax25->t1 = msecs_to_jiffies(ax25_dev->values[AX25_VALUES_T1]);
@@ -677,22 +677,33 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
break;
}
- rtnl_lock();
- dev = __dev_get_by_name(&init_net, devname);
+ rcu_read_lock();
+ dev = dev_get_by_name_rcu(&init_net, devname);
if (!dev) {
- rtnl_unlock();
+ rcu_read_unlock();
res = -ENODEV;
break;
}
+ if (ax25->ax25_dev) {
+ if (dev == ax25->ax25_dev->dev) {
+ rcu_read_unlock();
+ break;
+ }
+ netdev_put(ax25->ax25_dev->dev, &ax25->dev_tracker);
+ ax25_dev_put(ax25->ax25_dev);
+ }
+
ax25->ax25_dev = ax25_dev_ax25dev(dev);
if (!ax25->ax25_dev) {
- rtnl_unlock();
+ rcu_read_unlock();
res = -ENODEV;
break;
}
ax25_fillin_cb(ax25, ax25->ax25_dev);
- rtnl_unlock();
+ netdev_hold(dev, &ax25->dev_tracker, GFP_ATOMIC);
+ ax25_dev_hold(ax25->ax25_dev);
+ rcu_read_unlock();
break;
default:
@@ -1060,11 +1071,11 @@ static int ax25_release(struct socket *sock)
}
if (ax25_dev) {
if (!ax25_dev->device_up) {
- del_timer_sync(&ax25->timer);
- del_timer_sync(&ax25->t1timer);
- del_timer_sync(&ax25->t2timer);
- del_timer_sync(&ax25->t3timer);
- del_timer_sync(&ax25->idletimer);
+ timer_delete_sync(&ax25->timer);
+ timer_delete_sync(&ax25->t1timer);
+ timer_delete_sync(&ax25->t2timer);
+ timer_delete_sync(&ax25->t3timer);
+ timer_delete_sync(&ax25->idletimer);
}
netdev_put(ax25_dev->dev, &ax25->dev_tracker);
ax25_dev_put(ax25_dev);
@@ -1259,28 +1270,18 @@ static int __must_check ax25_connect(struct socket *sock,
}
}
- /*
- * Must bind first - autobinding in this may or may not work. If
- * the socket is already bound, check to see if the device has
- * been filled in, error if it hasn't.
- */
+ /* Must bind first - autobinding does not work. */
if (sock_flag(sk, SOCK_ZAPPED)) {
- /* check if we can remove this feature. It is broken. */
- printk(KERN_WARNING "ax25_connect(): %s uses autobind, please contact jreuter@yaina.de\n",
- current->comm);
- if ((err = ax25_rt_autobind(ax25, &fsa->fsa_ax25.sax25_call)) < 0) {
- kfree(digi);
- goto out_release;
- }
+ kfree(digi);
+ err = -EINVAL;
+ goto out_release;
+ }
- ax25_fillin_cb(ax25, ax25->ax25_dev);
- ax25_cb_add(ax25);
- } else {
- if (ax25->ax25_dev == NULL) {
- kfree(digi);
- err = -EHOSTUNREACH;
- goto out_release;
- }
+ /* Check to see if the device has been filled in, error if it hasn't. */
+ if (ax25->ax25_dev == NULL) {
+ kfree(digi);
+ err = -EHOSTUNREACH;
+ goto out_release;
}
if (sk->sk_type == SOCK_SEQPACKET &&
diff --git a/net/ax25/ax25_dev.c b/net/ax25/ax25_dev.c
index 9efd6690b344..3733c0254a50 100644
--- a/net/ax25/ax25_dev.c
+++ b/net/ax25/ax25_dev.c
@@ -90,7 +90,7 @@ void ax25_dev_device_up(struct net_device *dev)
spin_lock_bh(&ax25_dev_lock);
list_add(&ax25_dev->list, &ax25_dev_list);
- dev->ax25_ptr = ax25_dev;
+ rcu_assign_pointer(dev->ax25_ptr, ax25_dev);
spin_unlock_bh(&ax25_dev_lock);
ax25_register_dev_sysctl(ax25_dev);
@@ -125,7 +125,7 @@ void ax25_dev_device_down(struct net_device *dev)
}
}
- dev->ax25_ptr = NULL;
+ RCU_INIT_POINTER(dev->ax25_ptr, NULL);
spin_unlock_bh(&ax25_dev_lock);
netdev_put(dev, &ax25_dev->dev_tracker);
ax25_dev_put(ax25_dev);
diff --git a/net/ax25/ax25_ds_timer.c b/net/ax25/ax25_ds_timer.c
index c4f8adbf8144..0c9e7775aa54 100644
--- a/net/ax25/ax25_ds_timer.c
+++ b/net/ax25/ax25_ds_timer.c
@@ -44,7 +44,7 @@ void ax25_ds_setup_timer(ax25_dev *ax25_dev)
void ax25_ds_del_timer(ax25_dev *ax25_dev)
{
if (ax25_dev)
- del_timer(&ax25_dev->dama.slave_timer);
+ timer_delete(&ax25_dev->dama.slave_timer);
}
void ax25_ds_set_timer(ax25_dev *ax25_dev)
@@ -64,7 +64,7 @@ void ax25_ds_set_timer(ax25_dev *ax25_dev)
static void ax25_ds_timeout(struct timer_list *t)
{
- ax25_dev *ax25_dev = from_timer(ax25_dev, t, dama.slave_timer);
+ ax25_dev *ax25_dev = timer_container_of(ax25_dev, t, dama.slave_timer);
ax25_cb *ax25;
if (ax25_dev == NULL || !ax25_dev->dama.slave)
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index 36249776c021..215d4ccf12b9 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -122,6 +122,7 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb)
if (dev == NULL)
dev = skb->dev;
+ rcu_read_lock();
if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL) {
kfree_skb(skb);
goto put;
@@ -202,7 +203,7 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb)
ax25_queue_xmit(skb, dev);
put:
-
+ rcu_read_unlock();
ax25_route_lock_unuse();
return NETDEV_TX_OK;
}
diff --git a/net/ax25/ax25_out.c b/net/ax25/ax25_out.c
index 3db76d2470e9..8bca2ace98e5 100644
--- a/net/ax25/ax25_out.c
+++ b/net/ax25/ax25_out.c
@@ -39,10 +39,14 @@ ax25_cb *ax25_send_frame(struct sk_buff *skb, int paclen, const ax25_address *sr
* specified.
*/
if (paclen == 0) {
- if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
+ rcu_read_lock();
+ ax25_dev = ax25_dev_ax25dev(dev);
+ if (!ax25_dev) {
+ rcu_read_unlock();
return NULL;
-
+ }
paclen = ax25_dev->values[AX25_VALUES_PACLEN];
+ rcu_read_unlock();
}
/*
@@ -53,13 +57,19 @@ ax25_cb *ax25_send_frame(struct sk_buff *skb, int paclen, const ax25_address *sr
return ax25; /* It already existed */
}
- if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
+ rcu_read_lock();
+ ax25_dev = ax25_dev_ax25dev(dev);
+ if (!ax25_dev) {
+ rcu_read_unlock();
return NULL;
+ }
- if ((ax25 = ax25_create_cb()) == NULL)
+ if ((ax25 = ax25_create_cb()) == NULL) {
+ rcu_read_unlock();
return NULL;
-
+ }
ax25_fillin_cb(ax25, ax25_dev);
+ rcu_read_unlock();
ax25->source_addr = *src;
ax25->dest_addr = *dest;
@@ -358,7 +368,9 @@ void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev)
{
unsigned char *ptr;
+ rcu_read_lock();
skb->protocol = ax25_type_trans(skb, ax25_fwd_dev(dev));
+ rcu_read_unlock();
ptr = skb_push(skb, 1);
*ptr = 0x00; /* KISS */
diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index b7c4d656a94b..10577434f40b 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -373,78 +373,6 @@ ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
return ax25_rt;
}
-/*
- * Adjust path: If you specify a default route and want to connect
- * a target on the digipeater path but w/o having a special route
- * set before, the path has to be truncated from your target on.
- */
-static inline void ax25_adjust_path(ax25_address *addr, ax25_digi *digipeat)
-{
- int k;
-
- for (k = 0; k < digipeat->ndigi; k++) {
- if (ax25cmp(addr, &digipeat->calls[k]) == 0)
- break;
- }
-
- digipeat->ndigi = k;
-}
-
-
-/*
- * Find which interface to use.
- */
-int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
-{
- ax25_uid_assoc *user;
- ax25_route *ax25_rt;
- int err = 0;
-
- ax25_route_lock_use();
- ax25_rt = ax25_get_route(addr, NULL);
- if (!ax25_rt) {
- ax25_route_lock_unuse();
- return -EHOSTUNREACH;
- }
- if ((ax25->ax25_dev = ax25_dev_ax25dev(ax25_rt->dev)) == NULL) {
- err = -EHOSTUNREACH;
- goto put;
- }
-
- user = ax25_findbyuid(current_euid());
- if (user) {
- ax25->source_addr = user->call;
- ax25_uid_put(user);
- } else {
- if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) {
- err = -EPERM;
- goto put;
- }
- ax25->source_addr = *(ax25_address *)ax25->ax25_dev->dev->dev_addr;
- }
-
- if (ax25_rt->digipeat != NULL) {
- ax25->digipeat = kmemdup(ax25_rt->digipeat, sizeof(ax25_digi),
- GFP_ATOMIC);
- if (ax25->digipeat == NULL) {
- err = -ENOMEM;
- goto put;
- }
- ax25_adjust_path(addr, ax25->digipeat);
- }
-
- if (ax25->sk != NULL) {
- local_bh_disable();
- bh_lock_sock(ax25->sk);
- sock_reset_flag(ax25->sk, SOCK_ZAPPED);
- bh_unlock_sock(ax25->sk);
- local_bh_enable();
- }
-
-put:
- ax25_route_lock_unuse();
- return err;
-}
struct sk_buff *ax25_rt_build_path(struct sk_buff *skb, ax25_address *src,
ax25_address *dest, ax25_digi *digi)
diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
index 9ff98f46dc6b..bff4b203a893 100644
--- a/net/ax25/ax25_subr.c
+++ b/net/ax25/ax25_subr.c
@@ -262,11 +262,11 @@ void ax25_disconnect(ax25_cb *ax25, int reason)
ax25_clear_queues(ax25);
if (reason == ENETUNREACH) {
- del_timer_sync(&ax25->timer);
- del_timer_sync(&ax25->t1timer);
- del_timer_sync(&ax25->t2timer);
- del_timer_sync(&ax25->t3timer);
- del_timer_sync(&ax25->idletimer);
+ timer_delete_sync(&ax25->timer);
+ timer_delete_sync(&ax25->t1timer);
+ timer_delete_sync(&ax25->t2timer);
+ timer_delete_sync(&ax25->t3timer);
+ timer_delete_sync(&ax25->idletimer);
} else {
if (ax25->sk && !sock_flag(ax25->sk, SOCK_DESTROY))
ax25_stop_heartbeat(ax25);
diff --git a/net/ax25/ax25_timer.c b/net/ax25/ax25_timer.c
index 9f7cb0a7c73f..a69bfbc8b679 100644
--- a/net/ax25/ax25_timer.c
+++ b/net/ax25/ax25_timer.c
@@ -65,7 +65,7 @@ void ax25_start_t3timer(ax25_cb *ax25)
if (ax25->t3 > 0)
mod_timer(&ax25->t3timer, jiffies + ax25->t3);
else
- del_timer(&ax25->t3timer);
+ timer_delete(&ax25->t3timer);
}
void ax25_start_idletimer(ax25_cb *ax25)
@@ -73,32 +73,32 @@ void ax25_start_idletimer(ax25_cb *ax25)
if (ax25->idle > 0)
mod_timer(&ax25->idletimer, jiffies + ax25->idle);
else
- del_timer(&ax25->idletimer);
+ timer_delete(&ax25->idletimer);
}
void ax25_stop_heartbeat(ax25_cb *ax25)
{
- del_timer(&ax25->timer);
+ timer_delete(&ax25->timer);
}
void ax25_stop_t1timer(ax25_cb *ax25)
{
- del_timer(&ax25->t1timer);
+ timer_delete(&ax25->t1timer);
}
void ax25_stop_t2timer(ax25_cb *ax25)
{
- del_timer(&ax25->t2timer);
+ timer_delete(&ax25->t2timer);
}
void ax25_stop_t3timer(ax25_cb *ax25)
{
- del_timer(&ax25->t3timer);
+ timer_delete(&ax25->t3timer);
}
void ax25_stop_idletimer(ax25_cb *ax25)
{
- del_timer(&ax25->idletimer);
+ timer_delete(&ax25->idletimer);
}
int ax25_t1timer_running(ax25_cb *ax25)
@@ -121,7 +121,7 @@ EXPORT_SYMBOL(ax25_display_timer);
static void ax25_heartbeat_expiry(struct timer_list *t)
{
int proto = AX25_PROTO_STD_SIMPLEX;
- ax25_cb *ax25 = from_timer(ax25, t, timer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, timer);
if (ax25->ax25_dev)
proto = ax25->ax25_dev->values[AX25_VALUES_PROTOCOL];
@@ -145,7 +145,7 @@ static void ax25_heartbeat_expiry(struct timer_list *t)
static void ax25_t1timer_expiry(struct timer_list *t)
{
- ax25_cb *ax25 = from_timer(ax25, t, t1timer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, t1timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
@@ -164,7 +164,7 @@ static void ax25_t1timer_expiry(struct timer_list *t)
static void ax25_t2timer_expiry(struct timer_list *t)
{
- ax25_cb *ax25 = from_timer(ax25, t, t2timer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, t2timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
@@ -183,7 +183,7 @@ static void ax25_t2timer_expiry(struct timer_list *t)
static void ax25_t3timer_expiry(struct timer_list *t)
{
- ax25_cb *ax25 = from_timer(ax25, t, t3timer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, t3timer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
@@ -204,7 +204,7 @@ static void ax25_t3timer_expiry(struct timer_list *t)
static void ax25_idletimer_expiry(struct timer_list *t)
{
- ax25_cb *ax25 = from_timer(ax25, t, idletimer);
+ ax25_cb *ax25 = timer_container_of(ax25, t, idletimer);
switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {
case AX25_PROTO_STD_SIMPLEX:
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-29 15:28:25 +0300