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Diffstat (limited to 'net/atm')
-rw-r--r--net/atm/resources.c390
1 files changed, 192 insertions, 198 deletions
diff --git a/net/atm/resources.c b/net/atm/resources.c
index 0d4c0ee090db..447ed89205d8 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -71,7 +71,7 @@ struct atm_dev *atm_dev_lookup(int number)
mutex_unlock(&atm_dev_mutex);
return dev;
}
-
+EXPORT_SYMBOL(atm_dev_lookup);
struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
int number, unsigned long *flags)
@@ -85,7 +85,8 @@ struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
}
mutex_lock(&atm_dev_mutex);
if (number != -1) {
- if ((inuse = __atm_dev_lookup(number))) {
+ inuse = __atm_dev_lookup(number);
+ if (inuse) {
atm_dev_put(inuse);
mutex_unlock(&atm_dev_mutex);
kfree(dev);
@@ -130,7 +131,7 @@ out_fail:
dev = NULL;
goto out;
}
-
+EXPORT_SYMBOL(atm_dev_register);
void atm_dev_deregister(struct atm_dev *dev)
{
@@ -152,7 +153,7 @@ void atm_dev_deregister(struct atm_dev *dev)
atm_dev_put(dev);
}
-
+EXPORT_SYMBOL(atm_dev_deregister);
static void copy_aal_stats(struct k_atm_aal_stats *from,
struct atm_aal_stats *to)
@@ -162,7 +163,6 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
#undef __HANDLE_ITEM
}
-
static void subtract_aal_stats(struct k_atm_aal_stats *from,
struct atm_aal_stats *to)
{
@@ -171,8 +171,8 @@ static void subtract_aal_stats(struct k_atm_aal_stats *from,
#undef __HANDLE_ITEM
}
-
-static int fetch_stats(struct atm_dev *dev, struct atm_dev_stats __user *arg, int zero)
+static int fetch_stats(struct atm_dev *dev, struct atm_dev_stats __user *arg,
+ int zero)
{
struct atm_dev_stats tmp;
int error = 0;
@@ -190,7 +190,6 @@ static int fetch_stats(struct atm_dev *dev, struct atm_dev_stats __user *arg, in
return error ? -EFAULT : 0;
}
-
int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat)
{
void __user *buf;
@@ -206,50 +205,49 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat)
#endif
switch (cmd) {
- case ATM_GETNAMES:
-
- if (compat) {
+ case ATM_GETNAMES:
+ if (compat) {
#ifdef CONFIG_COMPAT
- struct compat_atm_iobuf __user *ciobuf = arg;
- compat_uptr_t cbuf;
- iobuf_len = &ciobuf->length;
- if (get_user(cbuf, &ciobuf->buffer))
- return -EFAULT;
- buf = compat_ptr(cbuf);
+ struct compat_atm_iobuf __user *ciobuf = arg;
+ compat_uptr_t cbuf;
+ iobuf_len = &ciobuf->length;
+ if (get_user(cbuf, &ciobuf->buffer))
+ return -EFAULT;
+ buf = compat_ptr(cbuf);
#endif
- } else {
- struct atm_iobuf __user *iobuf = arg;
- iobuf_len = &iobuf->length;
- if (get_user(buf, &iobuf->buffer))
- return -EFAULT;
- }
- if (get_user(len, iobuf_len))
+ } else {
+ struct atm_iobuf __user *iobuf = arg;
+ iobuf_len = &iobuf->length;
+ if (get_user(buf, &iobuf->buffer))
return -EFAULT;
- mutex_lock(&atm_dev_mutex);
- list_for_each(p, &atm_devs)
- size += sizeof(int);
- if (size > len) {
- mutex_unlock(&atm_dev_mutex);
- return -E2BIG;
- }
- tmp_buf = kmalloc(size, GFP_ATOMIC);
- if (!tmp_buf) {
- mutex_unlock(&atm_dev_mutex);
- return -ENOMEM;
- }
- tmp_p = tmp_buf;
- list_for_each(p, &atm_devs) {
- dev = list_entry(p, struct atm_dev, dev_list);
- *tmp_p++ = dev->number;
- }
+ }
+ if (get_user(len, iobuf_len))
+ return -EFAULT;
+ mutex_lock(&atm_dev_mutex);
+ list_for_each(p, &atm_devs)
+ size += sizeof(int);
+ if (size > len) {
mutex_unlock(&atm_dev_mutex);
- error = ((copy_to_user(buf, tmp_buf, size)) ||
- put_user(size, iobuf_len))
- ? -EFAULT : 0;
- kfree(tmp_buf);
- return error;
- default:
- break;
+ return -E2BIG;
+ }
+ tmp_buf = kmalloc(size, GFP_ATOMIC);
+ if (!tmp_buf) {
+ mutex_unlock(&atm_dev_mutex);
+ return -ENOMEM;
+ }
+ tmp_p = tmp_buf;
+ list_for_each(p, &atm_devs) {
+ dev = list_entry(p, struct atm_dev, dev_list);
+ *tmp_p++ = dev->number;
+ }
+ mutex_unlock(&atm_dev_mutex);
+ error = ((copy_to_user(buf, tmp_buf, size)) ||
+ put_user(size, iobuf_len))
+ ? -EFAULT : 0;
+ kfree(tmp_buf);
+ return error;
+ default:
+ break;
}
if (compat) {
@@ -278,166 +276,167 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat)
if (get_user(number, &sioc->number))
return -EFAULT;
}
- if (!(dev = try_then_request_module(atm_dev_lookup(number),
- "atm-device-%d", number)))
+
+ dev = try_then_request_module(atm_dev_lookup(number), "atm-device-%d",
+ number);
+ if (!dev)
return -ENODEV;
switch (cmd) {
- case ATM_GETTYPE:
- size = strlen(dev->type) + 1;
- if (copy_to_user(buf, dev->type, size)) {
- error = -EFAULT;
- goto done;
- }
- break;
- case ATM_GETESI:
- size = ESI_LEN;
- if (copy_to_user(buf, dev->esi, size)) {
- error = -EFAULT;
- goto done;
- }
- break;
- case ATM_SETESI:
- {
- int i;
-
- for (i = 0; i < ESI_LEN; i++)
- if (dev->esi[i]) {
- error = -EEXIST;
- goto done;
- }
- }
- /* fall through */
- case ATM_SETESIF:
- {
- unsigned char esi[ESI_LEN];
-
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- if (copy_from_user(esi, buf, ESI_LEN)) {
- error = -EFAULT;
- goto done;
- }
- memcpy(dev->esi, esi, ESI_LEN);
- error = ESI_LEN;
- goto done;
- }
- case ATM_GETSTATZ:
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- /* fall through */
- case ATM_GETSTAT:
- size = sizeof(struct atm_dev_stats);
- error = fetch_stats(dev, buf, cmd == ATM_GETSTATZ);
- if (error)
- goto done;
- break;
- case ATM_GETCIRANGE:
- size = sizeof(struct atm_cirange);
- if (copy_to_user(buf, &dev->ci_range, size)) {
- error = -EFAULT;
- goto done;
- }
- break;
- case ATM_GETLINKRATE:
- size = sizeof(int);
- if (copy_to_user(buf, &dev->link_rate, size)) {
- error = -EFAULT;
- goto done;
- }
- break;
- case ATM_RSTADDR:
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- atm_reset_addr(dev, ATM_ADDR_LOCAL);
- break;
- case ATM_ADDADDR:
- case ATM_DELADDR:
- case ATM_ADDLECSADDR:
- case ATM_DELLECSADDR:
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- {
- struct sockaddr_atmsvc addr;
-
- if (copy_from_user(&addr, buf, sizeof(addr))) {
- error = -EFAULT;
- goto done;
- }
- if (cmd == ATM_ADDADDR || cmd == ATM_ADDLECSADDR)
- error = atm_add_addr(dev, &addr,
- (cmd == ATM_ADDADDR ?
- ATM_ADDR_LOCAL : ATM_ADDR_LECS));
- else
- error = atm_del_addr(dev, &addr,
- (cmd == ATM_DELADDR ?
- ATM_ADDR_LOCAL : ATM_ADDR_LECS));
+ case ATM_GETTYPE:
+ size = strlen(dev->type) + 1;
+ if (copy_to_user(buf, dev->type, size)) {
+ error = -EFAULT;
+ goto done;
+ }
+ break;
+ case ATM_GETESI:
+ size = ESI_LEN;
+ if (copy_to_user(buf, dev->esi, size)) {
+ error = -EFAULT;
+ goto done;
+ }
+ break;
+ case ATM_SETESI:
+ {
+ int i;
+
+ for (i = 0; i < ESI_LEN; i++)
+ if (dev->esi[i]) {
+ error = -EEXIST;
goto done;
}
- case ATM_GETADDR:
- case ATM_GETLECSADDR:
- error = atm_get_addr(dev, buf, len,
- (cmd == ATM_GETADDR ?
+ }
+ /* fall through */
+ case ATM_SETESIF:
+ {
+ unsigned char esi[ESI_LEN];
+
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
+ goto done;
+ }
+ if (copy_from_user(esi, buf, ESI_LEN)) {
+ error = -EFAULT;
+ goto done;
+ }
+ memcpy(dev->esi, esi, ESI_LEN);
+ error = ESI_LEN;
+ goto done;
+ }
+ case ATM_GETSTATZ:
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
+ goto done;
+ }
+ /* fall through */
+ case ATM_GETSTAT:
+ size = sizeof(struct atm_dev_stats);
+ error = fetch_stats(dev, buf, cmd == ATM_GETSTATZ);
+ if (error)
+ goto done;
+ break;
+ case ATM_GETCIRANGE:
+ size = sizeof(struct atm_cirange);
+ if (copy_to_user(buf, &dev->ci_range, size)) {
+ error = -EFAULT;
+ goto done;
+ }
+ break;
+ case ATM_GETLINKRATE:
+ size = sizeof(int);
+ if (copy_to_user(buf, &dev->link_rate, size)) {
+ error = -EFAULT;
+ goto done;
+ }
+ break;
+ case ATM_RSTADDR:
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
+ goto done;
+ }
+ atm_reset_addr(dev, ATM_ADDR_LOCAL);
+ break;
+ case ATM_ADDADDR:
+ case ATM_DELADDR:
+ case ATM_ADDLECSADDR:
+ case ATM_DELLECSADDR:
+ {
+ struct sockaddr_atmsvc addr;
+
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
+ goto done;
+ }
+
+ if (copy_from_user(&addr, buf, sizeof(addr))) {
+ error = -EFAULT;
+ goto done;
+ }
+ if (cmd == ATM_ADDADDR || cmd == ATM_ADDLECSADDR)
+ error = atm_add_addr(dev, &addr,
+ (cmd == ATM_ADDADDR ?
ATM_ADDR_LOCAL : ATM_ADDR_LECS));
- if (error < 0)
- goto done;
- size = error;
- /* may return 0, but later on size == 0 means "don't
- write the length" */
- error = put_user(size, sioc_len)
- ? -EFAULT : 0;
+ else
+ error = atm_del_addr(dev, &addr,
+ (cmd == ATM_DELADDR ?
+ ATM_ADDR_LOCAL : ATM_ADDR_LECS));
+ goto done;
+ }
+ case ATM_GETADDR:
+ case ATM_GETLECSADDR:
+ error = atm_get_addr(dev, buf, len,
+ (cmd == ATM_GETADDR ?
+ ATM_ADDR_LOCAL : ATM_ADDR_LECS));
+ if (error < 0)
+ goto done;
+ size = error;
+ /* may return 0, but later on size == 0 means "don't
+ write the length" */
+ error = put_user(size, sioc_len) ? -EFAULT : 0;
+ goto done;
+ case ATM_SETLOOP:
+ if (__ATM_LM_XTRMT((int) (unsigned long) buf) &&
+ __ATM_LM_XTLOC((int) (unsigned long) buf) >
+ __ATM_LM_XTRMT((int) (unsigned long) buf)) {
+ error = -EINVAL;
goto done;
- case ATM_SETLOOP:
- if (__ATM_LM_XTRMT((int) (unsigned long) buf) &&
- __ATM_LM_XTLOC((int) (unsigned long) buf) >
- __ATM_LM_XTRMT((int) (unsigned long) buf)) {
+ }
+ /* fall through */
+ case ATM_SETCIRANGE:
+ case SONET_GETSTATZ:
+ case SONET_SETDIAG:
+ case SONET_CLRDIAG:
+ case SONET_SETFRAMING:
+ if (!capable(CAP_NET_ADMIN)) {
+ error = -EPERM;
+ goto done;
+ }
+ /* fall through */
+ default:
+ if (compat) {
+#ifdef CONFIG_COMPAT
+ if (!dev->ops->compat_ioctl) {
error = -EINVAL;
goto done;
}
- /* fall through */
- case ATM_SETCIRANGE:
- case SONET_GETSTATZ:
- case SONET_SETDIAG:
- case SONET_CLRDIAG:
- case SONET_SETFRAMING:
- if (!capable(CAP_NET_ADMIN)) {
- error = -EPERM;
- goto done;
- }
- /* fall through */
- default:
- if (compat) {
-#ifdef CONFIG_COMPAT
- if (!dev->ops->compat_ioctl) {
- error = -EINVAL;
- goto done;
- }
- size = dev->ops->compat_ioctl(dev, cmd, buf);
+ size = dev->ops->compat_ioctl(dev, cmd, buf);
#endif
- } else {
- if (!dev->ops->ioctl) {
- error = -EINVAL;
- goto done;
- }
- size = dev->ops->ioctl(dev, cmd, buf);
- }
- if (size < 0) {
- error = (size == -ENOIOCTLCMD ? -EINVAL : size);
+ } else {
+ if (!dev->ops->ioctl) {
+ error = -EINVAL;
goto done;
}
+ size = dev->ops->ioctl(dev, cmd, buf);
+ }
+ if (size < 0) {
+ error = (size == -ENOIOCTLCMD ? -EINVAL : size);
+ goto done;
+ }
}
if (size)
- error = put_user(size, sioc_len)
- ? -EFAULT : 0;
+ error = put_user(size, sioc_len) ? -EFAULT : 0;
else
error = 0;
done:
@@ -445,7 +444,7 @@ done:
return error;
}
-static __inline__ void *dev_get_idx(loff_t left)
+static inline void *dev_get_idx(loff_t left)
{
struct list_head *p;
@@ -474,8 +473,3 @@ void *atm_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
? atm_devs.next : ((struct list_head *)v)->next;
return (v == &atm_devs) ? NULL : v;
}
-
-
-EXPORT_SYMBOL(atm_dev_register);
-EXPORT_SYMBOL(atm_dev_deregister);
-EXPORT_SYMBOL(atm_dev_lookup);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 07:33:28 +0000