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 IPPROTO_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 int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp);
125 const char *strxf_xfrmproto(__u8 proto);
126 const char *strxf_algotype(int type);
127 const char *strxf_mask8(__u8 mask);
128 const char *strxf_mask32(__u32 mask);
129 const char *strxf_share(__u8 share);
130 const char *strxf_proto(__u8 proto);
131 const char *strxf_ptype(__u8 ptype);
132 void xfrm_id_info_print(xfrm_address_t *saddr, struct xfrm_id *id,
133 			__u8 mode, __u32 reqid, __u16 family, int force_spi,
134 			FILE *fp, const char *prefix, const char *title);
135 void xfrm_stats_print(struct xfrm_stats *s, FILE *fp, const char *prefix);
136 void xfrm_lifetime_print(struct xfrm_lifetime_cfg *cfg,
137 			 struct xfrm_lifetime_cur *cur,
138 			 FILE *fp, const char *prefix);
139 void xfrm_selector_print(struct xfrm_selector *sel, __u16 family,
140 			 FILE *fp, const char *prefix);
141 void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
142 		      FILE *fp, const char *prefix);
143 void xfrm_state_info_print(struct xfrm_usersa_info *xsinfo,
144 			    struct rtattr *tb[], FILE *fp, const char *prefix,
145 			   const char *title);
146 void xfrm_policy_info_print(struct xfrm_userpolicy_info *xpinfo,
147 			    struct rtattr *tb[], FILE *fp, const char *prefix,
148 			    const char *title);
149 int xfrm_id_parse(xfrm_address_t *saddr, struct xfrm_id *id, __u16 *family,
150 		  int loose, int *argcp, char ***argvp);
151 int xfrm_mode_parse(__u8 *mode, int *argcp, char ***argvp);
152 int xfrm_encap_type_parse(__u16 *type, int *argcp, char ***argvp);
153 int xfrm_reqid_parse(__u32 *reqid, int *argcp, char ***argvp);
154 int xfrm_selector_parse(struct xfrm_selector *sel, int *argcp, char ***argvp);
155 int xfrm_lifetime_cfg_parse(struct xfrm_lifetime_cfg *lft,
156 			    int *argcp, char ***argvp);
157 int xfrm_sctx_parse(char *ctxstr, char *context,
158 		    struct xfrm_user_sec_ctx *sctx);
159 #endif
160