#ifdef __KERNEL__
/* externally defined structs */
-struct vlan_group;
-struct net_device;
-struct packet_type;
-struct vlan_collection;
-struct vlan_dev_info;
struct hlist_node;
-#include <linux/proc_fs.h> /* for proc_dir_entry */
#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
#define VLAN_HLEN 4 /* The additional bytes (on top of the Ethernet header)
* that VLAN requires.
#define VLAN_ETH_DATA_LEN 1500 /* Max. octets in payload */
#define VLAN_ETH_FRAME_LEN 1518 /* Max. octets in frame sans FCS */
+/*
+ * struct vlan_hdr - vlan header
+ * @h_vlan_TCI: priority and VLAN ID
+ * @h_vlan_encapsulated_proto: packet type ID or len
+ */
+struct vlan_hdr {
+ __be16 h_vlan_TCI;
+ __be16 h_vlan_encapsulated_proto;
+};
+
+/**
+ * struct vlan_ethhdr - vlan ethernet header (ethhdr + vlan_hdr)
+ * @h_dest: destination ethernet address
+ * @h_source: source ethernet address
+ * @h_vlan_proto: ethernet protocol (always 0x8100)
+ * @h_vlan_TCI: priority and VLAN ID
+ * @h_vlan_encapsulated_proto: packet type ID or len
+ */
struct vlan_ethhdr {
- unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
- unsigned char h_source[ETH_ALEN]; /* source ether addr */
- __be16 h_vlan_proto; /* Should always be 0x8100 */
- __be16 h_vlan_TCI; /* Encapsulates priority and VLAN ID */
- unsigned short h_vlan_encapsulated_proto; /* packet type ID field (or len) */
+ unsigned char h_dest[ETH_ALEN];
+ unsigned char h_source[ETH_ALEN];
+ __be16 h_vlan_proto;
+ __be16 h_vlan_TCI;
+ __be16 h_vlan_encapsulated_proto;
};
#include <linux/skbuff.h>
static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb)
{
- return (struct vlan_ethhdr *)skb->mac.raw;
+ return (struct vlan_ethhdr *)skb_mac_header(skb);
}
-struct vlan_hdr {
- __be16 h_vlan_TCI; /* Encapsulates priority and VLAN ID */
- __be16 h_vlan_encapsulated_proto; /* packet type ID field (or len) */
-};
-
#define VLAN_VID_MASK 0xfff
/* found in socket.c */
-extern void vlan_ioctl_set(int (*hook)(void __user *));
-
-#define VLAN_NAME "vlan"
+extern void vlan_ioctl_set(int (*hook)(struct net *, void __user *));
/* if this changes, algorithm will have to be reworked because this
* depends on completely exhausting the VLAN identifier space. Thus
* it gives constant time look-up, but in many cases it wastes memory.
*/
-#define VLAN_GROUP_ARRAY_LEN 4096
+#define VLAN_GROUP_ARRAY_LEN 4096
+#define VLAN_GROUP_ARRAY_SPLIT_PARTS 8
+#define VLAN_GROUP_ARRAY_PART_LEN (VLAN_GROUP_ARRAY_LEN/VLAN_GROUP_ARRAY_SPLIT_PARTS)
struct vlan_group {
int real_dev_ifindex; /* The ifindex of the ethernet(like) device the vlan is attached to. */
+ unsigned int nr_vlans;
struct hlist_node hlist; /* linked list */
- struct net_device *vlan_devices[VLAN_GROUP_ARRAY_LEN];
+ struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS];
struct rcu_head rcu;
};
+static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
+ unsigned int vlan_id)
+{
+ struct net_device **array;
+ array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
+ return array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN];
+}
+
+static inline void vlan_group_set_device(struct vlan_group *vg,
+ unsigned int vlan_id,
+ struct net_device *dev)
+{
+ struct net_device **array;
+ if (!vg)
+ return;
+ array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
+ array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev;
+}
+
struct vlan_priority_tci_mapping {
- unsigned long priority;
+ u32 priority;
unsigned short vlan_qos; /* This should be shifted when first set, so we only do it
* at provisioning time.
* ((skb->priority << 13) & 0xE000)
/** This will be the mapping that correlates skb->priority to
* 3 bits of VLAN QOS tags...
*/
- unsigned long ingress_priority_map[8];
+ unsigned int nr_ingress_mappings;
+ u32 ingress_priority_map[8];
+
+ unsigned int nr_egress_mappings;
struct vlan_priority_tci_mapping *egress_priority_map[16]; /* hash table */
unsigned short vlan_id; /* The VLAN Identifier for this interface. */
* like DHCP that use packet-filtering and don't understand
* 802.1Q
*/
- struct dev_mc_list *old_mc_list; /* old multi-cast list for the VLAN interface..
- * we save this so we can tell what changes were
- * made, in order to feed the right changes down
- * to the real hardware...
- */
- int old_allmulti; /* similar to above. */
- int old_promiscuity; /* similar to above. */
struct net_device *real_dev; /* the underlying device/interface */
+ unsigned char real_dev_addr[ETH_ALEN];
struct proc_dir_entry *dent; /* Holds the proc data */
unsigned long cnt_inc_headroom_on_tx; /* How many times did we have to grow the skb on TX. */
unsigned long cnt_encap_on_xmit; /* How many times did we have to encapsulate the skb on TX. */
- struct net_device_stats dev_stats; /* Device stats (rx-bytes, tx-pkts, etc...) */
};
-#define VLAN_DEV_INFO(x) ((struct vlan_dev_info *)(x->priv))
-
-/* inline functions */
-
-static inline struct net_device_stats *vlan_dev_get_stats(struct net_device *dev)
+static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
{
- return &(VLAN_DEV_INFO(dev)->dev_stats);
+ return netdev_priv(dev);
}
+/* inline functions */
static inline __u32 vlan_get_ingress_priority(struct net_device *dev,
unsigned short vlan_tag)
{
- struct vlan_dev_info *vip = VLAN_DEV_INFO(dev);
+ struct vlan_dev_info *vip = vlan_dev_info(dev);
return vip->ingress_priority_map[(vlan_tag >> 13) & 0x7];
}
{
struct net_device_stats *stats;
- skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK];
+ if (skb_bond_should_drop(skb)) {
+ dev_kfree_skb_any(skb);
+ return NET_RX_DROP;
+ }
+
+ skb->dev = vlan_group_get_device(grp, vlan_tag & VLAN_VID_MASK);
if (skb->dev == NULL) {
dev_kfree_skb_any(skb);
skb->dev->last_rx = jiffies;
- stats = vlan_dev_get_stats(skb->dev);
+ stats = &skb->dev->stats;
stats->rx_packets++;
stats->rx_bytes += skb->len;
* This allows the VLAN to have a different MAC than the underlying
* device, and still route correctly.
*/
- if (!memcmp(eth_hdr(skb)->h_dest, skb->dev->dev_addr, ETH_ALEN))
+ if (!compare_ether_addr(eth_hdr(skb)->h_dest,
+ skb->dev->dev_addr))
skb->pkt_type = PACKET_HOST;
break;
};
memmove(skb->data, skb->data + VLAN_HLEN, 2 * VLAN_ETH_ALEN);
/* first, the ethernet type */
- veth->h_vlan_proto = __constant_htons(ETH_P_8021Q);
+ veth->h_vlan_proto = htons(ETH_P_8021Q);
/* now, the tag */
veth->h_vlan_TCI = htons(tag);
- skb->protocol = __constant_htons(ETH_P_8021Q);
- skb->mac.raw -= VLAN_HLEN;
- skb->nh.raw -= VLAN_HLEN;
+ skb->protocol = htons(ETH_P_8021Q);
+ skb->mac_header -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
return skb;
}
*
* Returns error if the skb is not of VLAN type
*/
-static inline int __vlan_get_tag(struct sk_buff *skb, unsigned short *tag)
+static inline int __vlan_get_tag(const struct sk_buff *skb, unsigned short *tag)
{
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb->data;
- if (veth->h_vlan_proto != __constant_htons(ETH_P_8021Q)) {
+ if (veth->h_vlan_proto != htons(ETH_P_8021Q)) {
return -EINVAL;
}
*
* Returns error if @skb->cb[] is not set correctly
*/
-static inline int __vlan_hwaccel_get_tag(struct sk_buff *skb, unsigned short *tag)
+static inline int __vlan_hwaccel_get_tag(const struct sk_buff *skb,
+ unsigned short *tag)
{
struct vlan_skb_tx_cookie *cookie;
*
* Returns error if the skb is not VLAN tagged
*/
-static inline int vlan_get_tag(struct sk_buff *skb, unsigned short *tag)
+static inline int vlan_get_tag(const struct sk_buff *skb, unsigned short *tag)
{
if (skb->dev->features & NETIF_F_HW_VLAN_TX) {
return __vlan_hwaccel_get_tag(skb, tag);
GET_VLAN_VID_CMD /* Get the VID of this VLAN (specified by name) */
};
+enum vlan_flags {
+ VLAN_FLAG_REORDER_HDR = 0x1,
+};
+
enum vlan_name_types {
VLAN_NAME_TYPE_PLUS_VID, /* Name will look like: vlan0005 */
VLAN_NAME_TYPE_RAW_PLUS_VID, /* name will look like: eth1.0005 */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff