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125 lines
2.7 KiB
125 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (c) 2015 Tom Herbert <[email protected]> |
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*/ |
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#ifndef __ILA_H |
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#define __ILA_H |
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#include <linux/errno.h> |
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#include <linux/ip.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/socket.h> |
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#include <linux/skbuff.h> |
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#include <linux/types.h> |
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#include <net/checksum.h> |
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#include <net/genetlink.h> |
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#include <net/ip.h> |
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#include <net/protocol.h> |
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#include <uapi/linux/ila.h> |
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struct ila_locator { |
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union { |
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__u8 v8[8]; |
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__be16 v16[4]; |
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__be32 v32[2]; |
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__be64 v64; |
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}; |
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}; |
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struct ila_identifier { |
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union { |
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struct { |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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u8 __space:4; |
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u8 csum_neutral:1; |
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u8 type:3; |
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#elif defined(__BIG_ENDIAN_BITFIELD) |
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u8 type:3; |
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u8 csum_neutral:1; |
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u8 __space:4; |
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#else |
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#error "Adjust your <asm/byteorder.h> defines" |
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#endif |
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u8 __space2[7]; |
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}; |
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__u8 v8[8]; |
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__be16 v16[4]; |
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__be32 v32[2]; |
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__be64 v64; |
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}; |
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}; |
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#define CSUM_NEUTRAL_FLAG htonl(0x10000000) |
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struct ila_addr { |
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union { |
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struct in6_addr addr; |
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struct { |
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struct ila_locator loc; |
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struct ila_identifier ident; |
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}; |
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}; |
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}; |
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static inline struct ila_addr *ila_a2i(struct in6_addr *addr) |
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{ |
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return (struct ila_addr *)addr; |
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} |
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struct ila_params { |
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struct ila_locator locator; |
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struct ila_locator locator_match; |
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__wsum csum_diff; |
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u8 csum_mode; |
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u8 ident_type; |
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}; |
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static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to) |
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{ |
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__be32 diff[] = { |
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~from[0], ~from[1], to[0], to[1], |
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}; |
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return csum_partial(diff, sizeof(diff), 0); |
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} |
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static inline bool ila_csum_neutral_set(struct ila_identifier ident) |
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{ |
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return !!(ident.csum_neutral); |
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} |
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void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p, |
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bool set_csum_neutral); |
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void ila_init_saved_csum(struct ila_params *p); |
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struct ila_net { |
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struct { |
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struct rhashtable rhash_table; |
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spinlock_t *locks; /* Bucket locks for entry manipulation */ |
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unsigned int locks_mask; |
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bool hooks_registered; |
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} xlat; |
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}; |
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int ila_lwt_init(void); |
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void ila_lwt_fini(void); |
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int ila_xlat_init_net(struct net *net); |
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void ila_xlat_exit_net(struct net *net); |
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int ila_xlat_nl_cmd_add_mapping(struct sk_buff *skb, struct genl_info *info); |
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int ila_xlat_nl_cmd_del_mapping(struct sk_buff *skb, struct genl_info *info); |
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int ila_xlat_nl_cmd_get_mapping(struct sk_buff *skb, struct genl_info *info); |
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int ila_xlat_nl_cmd_flush(struct sk_buff *skb, struct genl_info *info); |
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int ila_xlat_nl_dump_start(struct netlink_callback *cb); |
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int ila_xlat_nl_dump_done(struct netlink_callback *cb); |
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int ila_xlat_nl_dump(struct sk_buff *skb, struct netlink_callback *cb); |
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extern unsigned int ila_net_id; |
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extern struct genl_family ila_nl_family; |
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#endif /* __ILA_H */
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