include/linux/if_vlan.h

3  * VLAN		An implementation of 802.1Q VLAN tagging.
16 #define VLAN_HLEN	4		/* The additional bytes required by VLAN
28 #define VLAN_MAX_DEPTH	8		/* Max. number of nested VLAN tags parsed */
31  * 	struct vlan_hdr - vlan header
32  * 	@h_vlan_TCI: priority and VLAN ID
41  *	struct vlan_ethhdr - vlan ethernet header (ethhdr + vlan_hdr)
45  *	@h_vlan_TCI: priority and VLAN ID
76 #define VLAN_VID_MASK		0x0fff /* VLAN Identifier */
118  *	struct vlan_pcpu_stats - VLAN percpu rx/tx stats
151  *	struct vlan_priority_tci_mapping - vlan egress priority mappings
153  *	@vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
166  *	struct vlan_dev_priv - VLAN private device data
171  *	@vlan_proto: VLAN encapsulation protocol
172  *	@vlan_id: VLAN identifier
219 					      * VLAN's TCI */  in vlan_dev_get_egress_qos_mask()
310  * eth_type_vlan - check for valid vlan ether type.
313  * Returns true if the ether type is a vlan ether type.
337  * __vlan_insert_inner_tag - inner VLAN tag inserting
339  * @vlan_proto: VLAN encapsulation protocol
340  * @vlan_tci: VLAN TCI to insert
341  * @mac_len: MAC header length including outer vlan headers
343  * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
387  * __vlan_insert_tag - regular VLAN tag inserting
389  * @vlan_proto: VLAN encapsulation protocol
390  * @vlan_tci: VLAN TCI to insert
392  * Inserts the VLAN tag into @skb as part of the payload
404  * vlan_insert_inner_tag - inner VLAN tag inserting
406  * @vlan_proto: VLAN encapsulation protocol
407  * @vlan_tci: VLAN TCI to insert
408  * @mac_len: MAC header length including outer vlan headers
410  * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
411  * Returns a VLAN tagged skb. This might change skb->head.
434  * vlan_insert_tag - regular VLAN tag inserting
436  * @vlan_proto: VLAN encapsulation protocol
437  * @vlan_tci: VLAN TCI to insert
439  * Inserts the VLAN tag into @skb as part of the payload
440  * Returns a VLAN tagged skb. This might change skb->head.
454  * vlan_insert_tag_set_proto - regular VLAN tag inserting
456  * @vlan_proto: VLAN encapsulation protocol
457  * @vlan_tci: VLAN TCI to insert
459  * Inserts the VLAN tag into @skb as part of the payload
460  * Returns a VLAN tagged skb. This might change skb->head.
476  * __vlan_hwaccel_clear_tag - clear hardware accelerated VLAN info
479  * Clears the VLAN information from @skb
487  * __vlan_hwaccel_copy_tag - copy hardware accelerated VLAN info from another skb
491  * Copies VLAN information from @src to @dst (for branchless code)
499  * __vlan_hwaccel_push_inside - pushes vlan tag to the payload
502  * Pushes the VLAN tag from @skb->vlan_tci inside to the payload.
517  * __vlan_hwaccel_put_tag - hardware accelerated VLAN inserting
519  * @vlan_proto: VLAN encapsulation protocol
520  * @vlan_tci: VLAN TCI to insert
522  * Puts the VLAN TCI in @skb->vlan_tci and lets the device do the rest
532  * __vlan_get_tag - get the VLAN ID that is part of the payload
536  * Returns error if the skb is not of VLAN type
550  * __vlan_hwaccel_get_tag - get the VLAN ID that is in @skb->cb[]
569  * vlan_get_tag - get the VLAN ID from the skb
573  * Returns error if the skb is not VLAN tagged
587  * @type: first vlan protocol
588  * @depth: buffer to store length of eth and vlan tags in bytes
591  * vlan encapsulated (normal or hardware accelerated) or not.
633  * vlan encapsulated (normal or hardware accelerated) or not.
657 /* A getter for the SKB protocol field which will handle VLAN tags consistently
658  * whether VLAN acceleration is enabled or not.
663 		/* VLAN acceleration strips the VLAN header from the skb and  in skb_protocol()
678 	 * Was a VLAN packet, grab the encapsulated protocol, which the layer  in vlan_set_encap_proto()
706  * vlan_remove_tag - remove outer VLAN tag from payload
710  * Expects the skb to contain a VLAN tag in the payload, and to have skb->data
727  * skb_vlan_tagged - check if skb is vlan tagged.
743  * skb_vlan_tagged_multi - check if skb is vlan tagged with multiple headers.
746  * Returns true if the skb is tagged with multiple vlan headers, regardless
797  * compare_vlan_header - Compare two vlan headers
798  * @h1: Pointer to vlan header
799  * @h2: Pointer to vlan header
801  * Compare two vlan headers, returns 0 if equal.