2 * Copyright (c) 2015 Tom Herbert <tom@herbertland.com>
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
14 #include <linux/errno.h>
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/socket.h>
19 #include <linux/skbuff.h>
20 #include <linux/types.h>
21 #include <net/checksum.h>
22 #include <net/genetlink.h>
24 #include <net/protocol.h>
25 #include <uapi/linux/ila.h>
36 struct ila_identifier {
39 #if defined(__LITTLE_ENDIAN_BITFIELD)
43 #elif defined(__BIG_ENDIAN_BITFIELD)
48 #error "Adjust your <asm/byteorder.h> defines"
59 #define CSUM_NEUTRAL_FLAG htonl(0x10000000)
65 struct ila_locator loc;
66 struct ila_identifier ident;
71 static inline struct ila_addr *ila_a2i(struct in6_addr *addr)
73 return (struct ila_addr *)addr;
76 static inline bool ila_addr_is_ila(struct ila_addr *iaddr)
78 return (iaddr->ident.type != ILA_ATYPE_IID);
82 struct ila_locator locator;
83 struct ila_locator locator_match;
89 static inline __wsum compute_csum_diff8(const __be32 *from, const __be32 *to)
92 ~from[0], ~from[1], to[0], to[1],
95 return csum_partial(diff, sizeof(diff), 0);
98 static inline bool ila_csum_neutral_set(struct ila_identifier ident)
100 return !!(ident.csum_neutral);
103 void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p,
104 bool set_csum_neutral);
106 void ila_init_saved_csum(struct ila_params *p);
110 struct rhashtable rhash_table;
111 spinlock_t *locks; /* Bucket locks for entry manipulation */
112 unsigned int locks_mask;
113 bool hooks_registered;
117 int ila_lwt_init(void);
118 void ila_lwt_fini(void);
120 int ila_xlat_init_net(struct net *net);
121 void ila_xlat_exit_net(struct net *net);
123 int ila_xlat_nl_cmd_add_mapping(struct sk_buff *skb, struct genl_info *info);
124 int ila_xlat_nl_cmd_del_mapping(struct sk_buff *skb, struct genl_info *info);
125 int ila_xlat_nl_cmd_get_mapping(struct sk_buff *skb, struct genl_info *info);
126 int ila_xlat_nl_cmd_flush(struct sk_buff *skb, struct genl_info *info);
127 int ila_xlat_nl_dump_start(struct netlink_callback *cb);
128 int ila_xlat_nl_dump_done(struct netlink_callback *cb);
129 int ila_xlat_nl_dump(struct sk_buff *skb, struct netlink_callback *cb);
131 extern unsigned int ila_net_id;
133 extern struct genl_family ila_nl_family;