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https://github.com/brain-hackers/linux-brain.git
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2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2015 Tom Herbert <tom@herbertland.com>
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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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static inline bool ila_addr_is_ila(struct ila_addr *iaddr)
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{
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return (iaddr->ident.type != ILA_ATYPE_IID);
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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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