diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/if_vlan.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/if_vlan.h | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/ANDROID_3.4.5/include/linux/if_vlan.h b/ANDROID_3.4.5/include/linux/if_vlan.h deleted file mode 100644 index a810987c..00000000 --- a/ANDROID_3.4.5/include/linux/if_vlan.h +++ /dev/null @@ -1,407 +0,0 @@ -/* - * VLAN An implementation of 802.1Q VLAN tagging. - * - * Authors: Ben Greear <greearb@candelatech.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -#ifndef _LINUX_IF_VLAN_H_ -#define _LINUX_IF_VLAN_H_ - -#ifdef __KERNEL__ -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/rtnetlink.h> -#include <linux/bug.h> - -#define VLAN_HLEN 4 /* The additional bytes required by VLAN - * (in addition to the Ethernet header) - */ -#define VLAN_ETH_HLEN 18 /* Total octets in header. */ -#define VLAN_ETH_ZLEN 64 /* Min. octets in frame sans FCS */ - -/* - * According to 802.3ac, the packet can be 4 bytes longer. --Klika Jan - */ -#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]; - 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_header(skb); -} - -#define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */ -#define VLAN_PRIO_SHIFT 13 -#define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */ -#define VLAN_TAG_PRESENT VLAN_CFI_MASK -#define VLAN_VID_MASK 0x0fff /* VLAN Identifier */ -#define VLAN_N_VID 4096 - -/* found in socket.c */ -extern void vlan_ioctl_set(int (*hook)(struct net *, void __user *)); - -struct vlan_info; - -static inline int is_vlan_dev(struct net_device *dev) -{ - return dev->priv_flags & IFF_802_1Q_VLAN; -} - -#define vlan_tx_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) -#define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) - -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) - -extern struct net_device *__vlan_find_dev_deep(struct net_device *real_dev, - u16 vlan_id); -extern struct net_device *vlan_dev_real_dev(const struct net_device *dev); -extern u16 vlan_dev_vlan_id(const struct net_device *dev); - -extern bool vlan_do_receive(struct sk_buff **skb, bool last_handler); -extern struct sk_buff *vlan_untag(struct sk_buff *skb); - -extern int vlan_vid_add(struct net_device *dev, unsigned short vid); -extern void vlan_vid_del(struct net_device *dev, unsigned short vid); - -extern int vlan_vids_add_by_dev(struct net_device *dev, - const struct net_device *by_dev); -extern void vlan_vids_del_by_dev(struct net_device *dev, - const struct net_device *by_dev); -#else -static inline struct net_device * -__vlan_find_dev_deep(struct net_device *real_dev, u16 vlan_id) -{ - return NULL; -} - -static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev) -{ - BUG(); - return NULL; -} - -static inline u16 vlan_dev_vlan_id(const struct net_device *dev) -{ - BUG(); - return 0; -} - -static inline bool vlan_do_receive(struct sk_buff **skb, bool last_handler) -{ - if (((*skb)->vlan_tci & VLAN_VID_MASK) && last_handler) - (*skb)->pkt_type = PACKET_OTHERHOST; - return false; -} - -static inline struct sk_buff *vlan_untag(struct sk_buff *skb) -{ - return skb; -} - -static inline int vlan_vid_add(struct net_device *dev, unsigned short vid) -{ - return 0; -} - -static inline void vlan_vid_del(struct net_device *dev, unsigned short vid) -{ -} - -static inline int vlan_vids_add_by_dev(struct net_device *dev, - const struct net_device *by_dev) -{ - return 0; -} - -static inline void vlan_vids_del_by_dev(struct net_device *dev, - const struct net_device *by_dev) -{ -} -#endif - -/** - * vlan_insert_tag - regular VLAN tag inserting - * @skb: skbuff to tag - * @vlan_tci: VLAN TCI to insert - * - * Inserts the VLAN tag into @skb as part of the payload - * Returns a VLAN tagged skb. If a new skb is created, @skb is freed. - * - * Following the skb_unshare() example, in case of error, the calling function - * doesn't have to worry about freeing the original skb. - * - * Does not change skb->protocol so this function can be used during receive. - */ -static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb, u16 vlan_tci) -{ - struct vlan_ethhdr *veth; - - if (skb_cow_head(skb, VLAN_HLEN) < 0) { - kfree_skb(skb); - return NULL; - } - veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN); - - /* Move the mac addresses to the beginning of the new header. */ - memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN); - skb->mac_header -= VLAN_HLEN; - - /* first, the ethernet type */ - veth->h_vlan_proto = htons(ETH_P_8021Q); - - /* now, the TCI */ - veth->h_vlan_TCI = htons(vlan_tci); - - return skb; -} - -/** - * __vlan_put_tag - regular VLAN tag inserting - * @skb: skbuff to tag - * @vlan_tci: VLAN TCI to insert - * - * Inserts the VLAN tag into @skb as part of the payload - * Returns a VLAN tagged skb. If a new skb is created, @skb is freed. - * - * Following the skb_unshare() example, in case of error, the calling function - * doesn't have to worry about freeing the original skb. - */ -static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci) -{ - skb = vlan_insert_tag(skb, vlan_tci); - if (skb) - skb->protocol = htons(ETH_P_8021Q); - return skb; -} - -/** - * __vlan_hwaccel_put_tag - hardware accelerated VLAN inserting - * @skb: skbuff to tag - * @vlan_tci: VLAN TCI to insert - * - * Puts the VLAN TCI in @skb->vlan_tci and lets the device do the rest - */ -static inline struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb, - u16 vlan_tci) -{ - skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci; - return skb; -} - -#define HAVE_VLAN_PUT_TAG - -/** - * vlan_put_tag - inserts VLAN tag according to device features - * @skb: skbuff to tag - * @vlan_tci: VLAN TCI to insert - * - * Assumes skb->dev is the target that will xmit this frame. - * Returns a VLAN tagged skb. - */ -static inline struct sk_buff *vlan_put_tag(struct sk_buff *skb, u16 vlan_tci) -{ - if (skb->dev->features & NETIF_F_HW_VLAN_TX) { - return __vlan_hwaccel_put_tag(skb, vlan_tci); - } else { - return __vlan_put_tag(skb, vlan_tci); - } -} - -/** - * __vlan_get_tag - get the VLAN ID that is part of the payload - * @skb: skbuff to query - * @vlan_tci: buffer to store vlaue - * - * Returns error if the skb is not of VLAN type - */ -static inline int __vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci) -{ - struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb->data; - - if (veth->h_vlan_proto != htons(ETH_P_8021Q)) { - return -EINVAL; - } - - *vlan_tci = ntohs(veth->h_vlan_TCI); - return 0; -} - -/** - * __vlan_hwaccel_get_tag - get the VLAN ID that is in @skb->cb[] - * @skb: skbuff to query - * @vlan_tci: buffer to store vlaue - * - * Returns error if @skb->vlan_tci is not set correctly - */ -static inline int __vlan_hwaccel_get_tag(const struct sk_buff *skb, - u16 *vlan_tci) -{ - if (vlan_tx_tag_present(skb)) { - *vlan_tci = vlan_tx_tag_get(skb); - return 0; - } else { - *vlan_tci = 0; - return -EINVAL; - } -} - -#define HAVE_VLAN_GET_TAG - -/** - * vlan_get_tag - get the VLAN ID from the skb - * @skb: skbuff to query - * @vlan_tci: buffer to store vlaue - * - * Returns error if the skb is not VLAN tagged - */ -static inline int vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci) -{ - if (skb->dev->features & NETIF_F_HW_VLAN_TX) { - return __vlan_hwaccel_get_tag(skb, vlan_tci); - } else { - return __vlan_get_tag(skb, vlan_tci); - } -} - -/** - * vlan_get_protocol - get protocol EtherType. - * @skb: skbuff to query - * - * Returns the EtherType of the packet, regardless of whether it is - * vlan encapsulated (normal or hardware accelerated) or not. - */ -static inline __be16 vlan_get_protocol(const struct sk_buff *skb) -{ - __be16 protocol = 0; - - if (vlan_tx_tag_present(skb) || - skb->protocol != cpu_to_be16(ETH_P_8021Q)) - protocol = skb->protocol; - else { - __be16 proto, *protop; - protop = skb_header_pointer(skb, offsetof(struct vlan_ethhdr, - h_vlan_encapsulated_proto), - sizeof(proto), &proto); - if (likely(protop)) - protocol = *protop; - } - - return protocol; -} - -static inline void vlan_set_encap_proto(struct sk_buff *skb, - struct vlan_hdr *vhdr) -{ - __be16 proto; - unsigned char *rawp; - - /* - * Was a VLAN packet, grab the encapsulated protocol, which the layer - * three protocols care about. - */ - - proto = vhdr->h_vlan_encapsulated_proto; - if (ntohs(proto) >= 1536) { - skb->protocol = proto; - return; - } - - rawp = skb->data; - if (*(unsigned short *) rawp == 0xFFFF) - /* - * This is a magic hack to spot IPX packets. Older Novell - * breaks the protocol design and runs IPX over 802.3 without - * an 802.2 LLC layer. We look for FFFF which isn't a used - * 802.2 SSAP/DSAP. This won't work for fault tolerant netware - * but does for the rest. - */ - skb->protocol = htons(ETH_P_802_3); - else - /* - * Real 802.2 LLC - */ - skb->protocol = htons(ETH_P_802_2); -} -#endif /* __KERNEL__ */ - -/* VLAN IOCTLs are found in sockios.h */ - -/* Passed in vlan_ioctl_args structure to determine behaviour. */ -enum vlan_ioctl_cmds { - ADD_VLAN_CMD, - DEL_VLAN_CMD, - SET_VLAN_INGRESS_PRIORITY_CMD, - SET_VLAN_EGRESS_PRIORITY_CMD, - GET_VLAN_INGRESS_PRIORITY_CMD, - GET_VLAN_EGRESS_PRIORITY_CMD, - SET_VLAN_NAME_TYPE_CMD, - SET_VLAN_FLAG_CMD, - GET_VLAN_REALDEV_NAME_CMD, /* If this works, you know it's a VLAN device, btw */ - GET_VLAN_VID_CMD /* Get the VID of this VLAN (specified by name) */ -}; - -enum vlan_flags { - VLAN_FLAG_REORDER_HDR = 0x1, - VLAN_FLAG_GVRP = 0x2, - VLAN_FLAG_LOOSE_BINDING = 0x4, -}; - -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 */ - VLAN_NAME_TYPE_PLUS_VID_NO_PAD, /* Name will look like: vlan5 */ - VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD, /* Name will look like: eth0.5 */ - VLAN_NAME_TYPE_HIGHEST -}; - -struct vlan_ioctl_args { - int cmd; /* Should be one of the vlan_ioctl_cmds enum above. */ - char device1[24]; - - union { - char device2[24]; - int VID; - unsigned int skb_priority; - unsigned int name_type; - unsigned int bind_type; - unsigned int flag; /* Matches vlan_dev_priv flags */ - } u; - - short vlan_qos; -}; - -#endif /* !(_LINUX_IF_VLAN_H_) */ |