]> nv-tegra.nvidia Code Review - linux-2.6.git/blobdiff - include/linux/netdevice.h
net: Potential null skb->dev dereference
[linux-2.6.git] / include / linux / netdevice.h
index cdf53a8d9ff5685b588619164fe18db8b16787b6..fa8b47637997cd4eef3f0e791ce8bf5b48b34a85 100644 (file)
@@ -28,6 +28,7 @@
 #include <linux/if.h>
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>
+#include <linux/if_link.h>
 
 #ifdef __KERNEL__
 #include <linux/timer.h>
@@ -136,7 +137,7 @@ static inline bool dev_xmit_complete(int rc)
  *     used.
  */
 
-#if defined(CONFIG_WLAN_80211) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+#if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
 # if defined(CONFIG_MAC80211_MESH)
 #  define LL_MAX_HEADER 128
 # else
@@ -621,6 +622,13 @@ struct netdev_queue {
  *     this function is called when a VLAN id is unregistered.
  *
  * void (*ndo_poll_controller)(struct net_device *dev);
+ *
+ *     SR-IOV management functions.
+ * int (*ndo_set_vf_mac)(struct net_device *dev, int vf, u8* mac);
+ * int (*ndo_set_vf_vlan)(struct net_device *dev, int vf, u16 vlan, u8 qos);
+ * int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);
+ * int (*ndo_get_vf_config)(struct net_device *dev,
+ *                         int vf, struct ifla_vf_info *ivf);
  */
 #define HAVE_NET_DEVICE_OPS
 struct net_device_ops {
@@ -660,6 +668,15 @@ struct net_device_ops {
 #ifdef CONFIG_NET_POLL_CONTROLLER
        void                    (*ndo_poll_controller)(struct net_device *dev);
 #endif
+       int                     (*ndo_set_vf_mac)(struct net_device *dev,
+                                                 int queue, u8 *mac);
+       int                     (*ndo_set_vf_vlan)(struct net_device *dev,
+                                                  int queue, u16 vlan, u8 qos);
+       int                     (*ndo_set_vf_tx_rate)(struct net_device *dev,
+                                                     int vf, int rate);
+       int                     (*ndo_get_vf_config)(struct net_device *dev,
+                                                    int vf,
+                                                    struct ifla_vf_info *ivf);
 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
        int                     (*ndo_fcoe_enable)(struct net_device *dev);
        int                     (*ndo_fcoe_disable)(struct net_device *dev);
@@ -907,7 +924,12 @@ struct net_device {
               NETREG_UNREGISTERED,     /* completed unregister todo */
               NETREG_RELEASED,         /* called free_netdev */
               NETREG_DUMMY,            /* dummy device for NAPI poll */
-       } reg_state;
+       } reg_state:16;
+
+       enum {
+               RTNL_LINK_INITIALIZED,
+               RTNL_LINK_INITIALIZING,
+       } rtnl_link_state:16;
 
        /* Called from unregister, can be used to call free_netdev */
        void (*destructor)(struct net_device *dev);
@@ -1565,7 +1587,9 @@ extern int                dev_valid_name(const char *name);
 extern int             dev_ioctl(struct net *net, unsigned int cmd, void __user *);
 extern int             dev_ethtool(struct net *net, struct ifreq *);
 extern unsigned                dev_get_flags(const struct net_device *);
+extern int             __dev_change_flags(struct net_device *, unsigned int flags);
 extern int             dev_change_flags(struct net_device *, unsigned);
+extern void            __dev_notify_flags(struct net_device *, unsigned int old_flags);
 extern int             dev_change_name(struct net_device *, const char *);
 extern int             dev_set_alias(struct net_device *, const char *, size_t);
 extern int             dev_change_net_namespace(struct net_device *,
@@ -2035,12 +2059,12 @@ static inline void skb_bond_set_mac_by_master(struct sk_buff *skb,
  * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and
  * ARP on active-backup slaves with arp_validate enabled.
  */
-static inline int skb_bond_should_drop(struct sk_buff *skb)
+static inline int skb_bond_should_drop(struct sk_buff *skb,
+                                      struct net_device *master)
 {
-       struct net_device *dev = skb->dev;
-       struct net_device *master = dev->master;
-
        if (master) {
+               struct net_device *dev = skb->dev;
+
                if (master->priv_flags & IFF_MASTER_ARPMON)
                        dev->last_rx = jiffies;
 
@@ -2095,6 +2119,130 @@ static inline u32 dev_ethtool_get_flags(struct net_device *dev)
                return 0;
        return dev->ethtool_ops->get_flags(dev);
 }
+
+/* Logging, debugging and troubleshooting/diagnostic helpers. */
+
+/* netdev_printk helpers, similar to dev_printk */
+
+static inline const char *netdev_name(const struct net_device *dev)
+{
+       if (dev->reg_state != NETREG_REGISTERED)
+               return "(unregistered net_device)";
+       return dev->name;
+}
+
+#define netdev_printk(level, netdev, format, args...)          \
+       dev_printk(level, (netdev)->dev.parent,                 \
+                  "%s: " format,                               \
+                  netdev_name(netdev), ##args)
+
+#define netdev_emerg(dev, format, args...)                     \
+       netdev_printk(KERN_EMERG, dev, format, ##args)
+#define netdev_alert(dev, format, args...)                     \
+       netdev_printk(KERN_ALERT, dev, format, ##args)
+#define netdev_crit(dev, format, args...)                      \
+       netdev_printk(KERN_CRIT, dev, format, ##args)
+#define netdev_err(dev, format, args...)                       \
+       netdev_printk(KERN_ERR, dev, format, ##args)
+#define netdev_warn(dev, format, args...)                      \
+       netdev_printk(KERN_WARNING, dev, format, ##args)
+#define netdev_notice(dev, format, args...)                    \
+       netdev_printk(KERN_NOTICE, dev, format, ##args)
+#define netdev_info(dev, format, args...)                      \
+       netdev_printk(KERN_INFO, dev, format, ##args)
+
+#if defined(DEBUG)
+#define netdev_dbg(__dev, format, args...)                     \
+       netdev_printk(KERN_DEBUG, __dev, format, ##args)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
+#define netdev_dbg(__dev, format, args...)                     \
+do {                                                           \
+       dynamic_dev_dbg((__dev)->dev.parent, "%s: " format,     \
+                       netdev_name(__dev), ##args);            \
+} while (0)
+#else
+#define netdev_dbg(__dev, format, args...)                     \
+({                                                             \
+       if (0)                                                  \
+               netdev_printk(KERN_DEBUG, __dev, format, ##args); \
+       0;                                                      \
+})
+#endif
+
+#if defined(VERBOSE_DEBUG)
+#define netdev_vdbg    netdev_dbg
+#else
+
+#define netdev_vdbg(dev, format, args...)                      \
+({                                                             \
+       if (0)                                                  \
+               netdev_printk(KERN_DEBUG, dev, format, ##args); \
+       0;                                                      \
+})
+#endif
+
+/*
+ * netdev_WARN() acts like dev_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define netdev_WARN(dev, format, args...)                      \
+       WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args);
+
+/* netif printk helpers, similar to netdev_printk */
+
+#define netif_printk(priv, type, level, dev, fmt, args...)     \
+do {                                                           \
+       if (netif_msg_##type(priv))                             \
+               netdev_printk(level, (dev), fmt, ##args);       \
+} while (0)
+
+#define netif_emerg(priv, type, dev, fmt, args...)             \
+       netif_printk(priv, type, KERN_EMERG, dev, fmt, ##args)
+#define netif_alert(priv, type, dev, fmt, args...)             \
+       netif_printk(priv, type, KERN_ALERT, dev, fmt, ##args)
+#define netif_crit(priv, type, dev, fmt, args...)              \
+       netif_printk(priv, type, KERN_CRIT, dev, fmt, ##args)
+#define netif_err(priv, type, dev, fmt, args...)               \
+       netif_printk(priv, type, KERN_ERR, dev, fmt, ##args)
+#define netif_warn(priv, type, dev, fmt, args...)              \
+       netif_printk(priv, type, KERN_WARNING, dev, fmt, ##args)
+#define netif_notice(priv, type, dev, fmt, args...)            \
+       netif_printk(priv, type, KERN_NOTICE, dev, fmt, ##args)
+#define netif_info(priv, type, dev, fmt, args...)              \
+       netif_printk(priv, type, KERN_INFO, (dev), fmt, ##args)
+
+#if defined(DEBUG)
+#define netif_dbg(priv, type, dev, format, args...)            \
+       netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
+#define netif_dbg(priv, type, netdev, format, args...)         \
+do {                                                           \
+       if (netif_msg_##type(priv))                             \
+               dynamic_dev_dbg((netdev)->dev.parent,           \
+                               "%s: " format,                  \
+                               netdev_name(netdev), ##args);   \
+} while (0)
+#else
+#define netif_dbg(priv, type, dev, format, args...)                    \
+({                                                                     \
+       if (0)                                                          \
+               netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
+       0;                                                              \
+})
+#endif
+
+#if defined(VERBOSE_DEBUG)
+#define netif_vdbg     netdev_dbg
+#else
+#define netif_vdbg(priv, type, dev, format, args...)           \
+({                                                             \
+       if (0)                                                  \
+               netif_printk(KERN_DEBUG, dev, format, ##args);  \
+       0;                                                      \
+})
+#endif
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_NETDEVICE_H */