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author | David S. Miller <davem@davemloft.net> | 2008-04-14 05:30:23 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-04-14 05:30:23 -0400 |
commit | df39e8ba56a788733d369068c7319e04b1da3cd5 (patch) | |
tree | 1e9be853bdb455e341cdbf957656f342cfa2eb9e /drivers/net/tun.c | |
parent | f5572855ec492334d8c3ec0e0e86c31865d5cf07 (diff) | |
parent | 159d83363b629c91d020734207c1bc788b96af5a (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/ehea/ehea_main.c
drivers/net/wireless/iwlwifi/Kconfig
drivers/net/wireless/rt2x00/rt61pci.c
net/ipv4/inet_timewait_sock.c
net/ipv6/raw.c
net/mac80211/ieee80211_sta.c
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r-- | drivers/net/tun.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 7b816a032957..5b5d87585d91 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c | |||
@@ -67,9 +67,42 @@ | |||
67 | #include <asm/system.h> | 67 | #include <asm/system.h> |
68 | #include <asm/uaccess.h> | 68 | #include <asm/uaccess.h> |
69 | 69 | ||
70 | /* Uncomment to enable debugging */ | ||
71 | /* #define TUN_DEBUG 1 */ | ||
72 | |||
70 | #ifdef TUN_DEBUG | 73 | #ifdef TUN_DEBUG |
71 | static int debug; | 74 | static int debug; |
75 | |||
76 | #define DBG if(tun->debug)printk | ||
77 | #define DBG1 if(debug==2)printk | ||
78 | #else | ||
79 | #define DBG( a... ) | ||
80 | #define DBG1( a... ) | ||
81 | #endif | ||
82 | |||
83 | struct tun_struct { | ||
84 | struct list_head list; | ||
85 | unsigned long flags; | ||
86 | int attached; | ||
87 | uid_t owner; | ||
88 | gid_t group; | ||
89 | |||
90 | wait_queue_head_t read_wait; | ||
91 | struct sk_buff_head readq; | ||
92 | |||
93 | struct net_device *dev; | ||
94 | |||
95 | struct fasync_struct *fasync; | ||
96 | |||
97 | unsigned long if_flags; | ||
98 | u8 dev_addr[ETH_ALEN]; | ||
99 | u32 chr_filter[2]; | ||
100 | u32 net_filter[2]; | ||
101 | |||
102 | #ifdef TUN_DEBUG | ||
103 | int debug; | ||
72 | #endif | 104 | #endif |
105 | }; | ||
73 | 106 | ||
74 | /* Network device part of the driver */ | 107 | /* Network device part of the driver */ |
75 | 108 | ||
@@ -253,8 +286,11 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, | |||
253 | return -EFAULT; | 286 | return -EFAULT; |
254 | } | 287 | } |
255 | 288 | ||
256 | if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) | 289 | if ((tun->flags & TUN_TYPE_MASK) == TUN_TAP_DEV) { |
257 | align = NET_IP_ALIGN; | 290 | align = NET_IP_ALIGN; |
291 | if (unlikely(len < ETH_HLEN)) | ||
292 | return -EINVAL; | ||
293 | } | ||
258 | 294 | ||
259 | if (!(skb = alloc_skb(len + align, GFP_KERNEL))) { | 295 | if (!(skb = alloc_skb(len + align, GFP_KERNEL))) { |
260 | tun->dev->stats.rx_dropped++; | 296 | tun->dev->stats.rx_dropped++; |