^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2015 Tom Herbert <tom@herbertland.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef __ILA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define __ILA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <net/checksum.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <net/genetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <net/protocol.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <uapi/linux/ila.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct ila_locator {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) __u8 v8[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) __be16 v16[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) __be32 v32[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) __be64 v64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct ila_identifier {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #if defined(__LITTLE_ENDIAN_BITFIELD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) u8 __space:4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u8 csum_neutral:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) u8 type:3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #elif defined(__BIG_ENDIAN_BITFIELD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) u8 type:3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) u8 csum_neutral:1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u8 __space:4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #error "Adjust your <asm/byteorder.h> defines"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u8 __space2[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) __u8 v8[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) __be16 v16[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) __be32 v32[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) __be64 v64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define CSUM_NEUTRAL_FLAG htonl(0x10000000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct ila_addr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct in6_addr addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct ila_locator loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct ila_identifier ident;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static inline struct ila_addr *ila_a2i(struct in6_addr *addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return (struct ila_addr *)addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct ila_params {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct ila_locator locator;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct ila_locator locator_match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) __wsum csum_diff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) u8 csum_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) u8 ident_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) __be32 diff[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) ~from[0], ~from[1], to[0], to[1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return csum_partial(diff, sizeof(diff), 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static inline bool ila_csum_neutral_set(struct ila_identifier ident)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return !!(ident.csum_neutral);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) bool set_csum_neutral);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) void ila_init_saved_csum(struct ila_params *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct ila_net {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct rhashtable rhash_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) spinlock_t *locks; /* Bucket locks for entry manipulation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) unsigned int locks_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) bool hooks_registered;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) } xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int ila_lwt_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) void ila_lwt_fini(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) int ila_xlat_init_net(struct net *net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) void ila_xlat_exit_net(struct net *net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int ila_xlat_nl_cmd_add_mapping(struct sk_buff *skb, struct genl_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) int ila_xlat_nl_cmd_del_mapping(struct sk_buff *skb, struct genl_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) int ila_xlat_nl_cmd_get_mapping(struct sk_buff *skb, struct genl_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int ila_xlat_nl_cmd_flush(struct sk_buff *skb, struct genl_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) int ila_xlat_nl_dump_start(struct netlink_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int ila_xlat_nl_dump_done(struct netlink_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) int ila_xlat_nl_dump(struct sk_buff *skb, struct netlink_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) extern unsigned int ila_net_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) extern struct genl_family ila_nl_family;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #endif /* __ILA_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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