ip/xfrm.h

   1 /* $USAGI: $ */
   2
   3 /*
   4  * Copyright (C)2004 USAGI/WIDE Project
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses>.
  18  */
  19 /*
  20  * Authors:
  21  *      Masahide NAKAMURA @USAGI
  22  */
  23
  24 #ifndef __XFRM_H__
  25 #define __XFRM_H__ 1
  26
  27 #include <stdio.h>
  28 #include <sys/socket.h>
  29 #include <linux/in.h>
  30 #include <linux/xfrm.h>
  31 #include <linux/ipsec.h>
  32
  33 #ifndef IPPROTO_MH
  34 #define IPPROTO_MH              135
  35 #endif
  36
  37 #define XFRMS_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_usersa_info))))
  38 #define XFRMS_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_usersa_info))
  39
  40 #define XFRMP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_info))))
  41 #define XFRMP_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_userpoilcy_info))
  42
  43 #define XFRMSID_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_usersa_id))))
  44 #define XFRMSID_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_usersa_id))
  45
  46 #define XFRMPID_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))))
  47 #define XFRMPID_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_userpoilcy_id))
  48
  49 #define XFRMACQ_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_acquire))))
  50 #define XFRMEXP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_expire))))
  51 #define XFRMPEXP_RTA(x) ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire))))
  52
  53 #define XFRMREP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_report))))
  54
  55 #define XFRMSAPD_RTA(x) ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(__u32))))
  56 #define XFRM_FLAG_PRINT(fp, flags, f, s) \
  57         do { \
  58                 if (flags & f) { \
  59                         flags &= ~f; \
  60                         fprintf(fp, s "%s", (flags ? " " : "")); \
  61                 } \
  62         } while(0)
  63
  64 struct xfrm_buffer {
  65         char *buf;
  66         int size;
  67         int offset;
  68
  69         int nlmsg_count;
  70         struct rtnl_handle *rth;
  71 };
  72
  73 struct xfrm_filter {
  74         int use;
  75
  76         struct xfrm_usersa_info xsinfo;
  77         __u8 id_src_mask;
  78         __u8 id_dst_mask;
  79         __u8 id_proto_mask;
  80         __u32 id_spi_mask;
  81         __u8 mode_mask;
  82         __u32 reqid_mask;
  83         __u8 state_flags_mask;
  84
  85         struct xfrm_userpolicy_info xpinfo;
  86         __u8 dir_mask;
  87         __u8 sel_src_mask;
  88         __u8 sel_dst_mask;
  89         __u32 sel_dev_mask;
  90         __u8 upspec_proto_mask;
  91         __u16 upspec_sport_mask;
  92         __u16 upspec_dport_mask;
  93         __u32 index_mask;
  94         __u8 action_mask;
  95         __u32 priority_mask;
  96         __u8 policy_flags_mask;
  97         __u8 filter_socket;
  98
  99         __u8 ptype;
 100         __u8 ptype_mask;
 101
 102 };
 103 #define XFRM_FILTER_MASK_FULL (~0)
 104
 105 extern struct xfrm_filter filter;
 106
 107 int xfrm_state_print(struct nlmsghdr *n, void *arg);
 108 int xfrm_policy_print(struct nlmsghdr *n, void *arg);
 109 int do_xfrm_state(int argc, char **argv);
 110 int do_xfrm_policy(int argc, char **argv);
 111 int do_xfrm_monitor(int argc, char **argv);
 112
 113 int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits);
 114 int xfrm_xfrmproto_is_ipsec(__u8 proto);
 115 int xfrm_xfrmproto_is_ro(__u8 proto);
 116 int xfrm_xfrmproto_getbyname(char *name);
 117 int xfrm_algotype_getbyname(char *name);
 118 int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp);
 119 const char *strxf_xfrmproto(__u8 proto);
 120 const char *strxf_algotype(int type);
 121 const char *strxf_mask32(__u32 mask);
 122 const char *strxf_proto(__u8 proto);
 123 const char *strxf_ptype(__u8 ptype);
 124 void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
 125                          FILE *fp, const char *prefix);
 126 void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
 127                       FILE *fp, const char *prefix);
 128 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
 129                             struct rtattr *tb[], FILE *fp, const char *prefix,
 130                            const char *title);
 131 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
 132                             struct rtattr *tb[], FILE *fp, const char *prefix,
 133                             const char *title);
 134 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
 135                   int loose, int *argcp, char ***argvp);
 136 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp);
 137 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp);
 138 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp);
 139 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp);
 140 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
 141                             int *argcp, char ***argvp);
 142 int xfrm_sctx_parse(char *ctxstr, char *context,
 143                     struct xfrm_user_sec_ctx *sctx);
 144 #endif