Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _NET_ESP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _NET_ESP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define ESP_SKB_FRAG_MAXSIZE (PAGE_SIZE << SKB_FRAG_PAGE_ORDER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) struct ip_esp_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	return (struct ip_esp_hdr *)skb_transport_header(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static inline void esp_output_fill_trailer(u8 *tail, int tfclen, int plen, __u8 proto)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	/* Fill padding... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	if (tfclen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		memset(tail, 0, tfclen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		tail += tfclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		for (i = 0; i < plen - 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			tail[i] = i + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	} while (0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	tail[plen - 2] = plen - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	tail[plen - 1] = proto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct esp_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct	ip_esp_hdr *esph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	__be64	seqno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	int	tfclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	int	tailen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	int	plen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	int	clen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	int 	len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	int 	nfrags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	__u8	proto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	bool	inplace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) int esp_input_done2(struct sk_buff *skb, int err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int esp6_input_done2(struct sk_buff *skb, int err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #endif