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, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 /*
  21  * Authors:
  22  *      Masahide NAKAMURA @USAGI
  23  */
  24
  25 #ifndef __XFRM_H__
  26 #define __XFRM_H__ 1
  27
  28 #include <stdio.h>
  29 #include <sys/socket.h>
  30 #include <linux/xfrm.h>
  31
  32 #ifndef IPPROTO_SCTP
  33 # define IPPROTO_SCTP   132
  34 #endif
  35 #ifndef IPPPROTO_DCCP
  36 # define IPPROTO_DCCP   33
  37 #endif
  38 #ifndef IPPROTO_MH
  39 # define IPPROTO_MH     135
  40 #endif
  41
  42 #define XFRMS_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_usersa_info))))
  43 #define XFRMS_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_usersa_info))
  44
  45 #define XFRMP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_info))))
  46 #define XFRMP_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_userpoilcy_info))
  47
  48 #define XFRMSID_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_usersa_id))))
  49 #define XFRMSID_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_usersa_id))
  50
  51 #define XFRMPID_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))))
  52 #define XFRMPID_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct xfrm_userpoilcy_id))
  53
  54 #define XFRMACQ_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_acquire))))
  55 #define XFRMEXP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_expire))))
  56 #define XFRMPEXP_RTA(x) ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire))))
  57
  58 #define XFRMREP_RTA(x)  ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(struct xfrm_user_report))))
  59
  60 #define XFRMSAPD_RTA(x) ((struct rtattr*)(((char*)(x)) + NLMSG_ALIGN(sizeof(__u32))))
  61 #define XFRM_FLAG_PRINT(fp, flags, f, s) \
  62         do { \
  63                 if (flags & f) { \
  64                         flags &= ~f; \
  65                         fprintf(fp, s "%s", (flags ? " " : "")); \
  66                 } \
  67         } while(0)
  68
  69 struct xfrm_buffer {
  70         char *buf;
  71         int size;
  72         int offset;
  73
  74         int nlmsg_count;
  75         struct rtnl_handle *rth;
  76 };
  77
  78 struct xfrm_filter {
  79         int use;
  80
  81         struct xfrm_usersa_info xsinfo;
  82         __u8 id_src_mask;
  83         __u8 id_dst_mask;
  84         __u8 id_proto_mask;
  85         __u32 id_spi_mask;
  86         __u8 mode_mask;
  87         __u32 reqid_mask;
  88         __u8 state_flags_mask;
  89
  90         struct xfrm_userpolicy_info xpinfo;
  91         __u8 dir_mask;
  92         __u8 sel_src_mask;
  93         __u8 sel_dst_mask;
  94         __u32 sel_dev_mask;
  95         __u8 upspec_proto_mask;
  96         __u16 upspec_sport_mask;
  97         __u16 upspec_dport_mask;
  98         __u32 index_mask;
  99         __u8 action_mask;
 100         __u32 priority_mask;
 101         __u8 policy_flags_mask;
 102
 103         __u8 ptype;
 104         __u8 ptype_mask;
 105
 106 };
 107 #define XFRM_FILTER_MASK_FULL (~0)
 108
 109 extern struct xfrm_filter filter;
 110
 111 int xfrm_state_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
 112                      void *arg);
 113 int xfrm_policy_print(const struct sockaddr_nl *who, struct nlmsghdr *n,
 114                       void *arg);
 115 int do_xfrm_state(int argc, char **argv);
 116 int do_xfrm_policy(int argc, char **argv);
 117 int do_xfrm_monitor(int argc, char **argv);
 118
 119 int xfrm_addr_match(xfrm_address_t *x1, xfrm_address_t *x2, int bits);
 120 int xfrm_xfrmproto_is_ipsec(__u8 proto);
 121 int xfrm_xfrmproto_is_ro(__u8 proto);
 122 int xfrm_xfrmproto_getbyname(char *name);
 123 int xfrm_algotype_getbyname(char *name);
 124 const char *strxf_xfrmproto(__u8 proto);
 125 const char *strxf_algotype(int type);
 126 const char *strxf_mask8(__u8 mask);
 127 const char *strxf_mask32(__u32 mask);
 128 const char *strxf_share(__u8 share);
 129 const char *strxf_proto(__u8 proto);
 130 const char *strxf_ptype(__u8 ptype);
 131 void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
 132                         __u8 mode, __u32 reqid, __u16 family, int force_spi,
 133                         FILE *fp, const char *prefix, const char *title);
 134 void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix);
 135 void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
 136                          struct xfrm_lifetime_cur *cur,
 137                          FILE *fp, const char *prefix);
 138 void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
 139                          FILE *fp, const char *prefix);
 140 void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
 141                       FILE *fp, const char *prefix);
 142 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
 143                             struct rtattr *tb[], FILE *fp, const char *prefix,
 144                            const char *title);
 145 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
 146                             struct rtattr *tb[], FILE *fp, const char *prefix,
 147                             const char *title);
 148 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
 149                   int loose, int *argcp, char ***argvp);
 150 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp);
 151 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp);
 152 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp);
 153 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp);
 154 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
 155                             int *argcp, char ***argvp);
 156
 157 #endif