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ipsec_dump_policy.c (55505) ipsec_dump_policy.c (62583)
1/* $FreeBSD: head/lib/libipsec/ipsec_dump_policy.c 62583 2000-07-04 16:22:05Z itojun $ */
2/* $KAME: ipsec_dump_policy.c,v 1.11 2000/05/07 05:29:47 itojun Exp $ */
3
1/*
2 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
4/*
5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/lib/libipsec/ipsec_dump_policy.c 55505 2000-01-06 12:40:54Z shin $
30 */
31
32#include <sys/types.h>
33#include <sys/param.h>
34#include <sys/socket.h>
35
36#include <netkey/key_var.h>
37#include <netinet/in.h>
38#include <netinet6/ipsec.h>
39
40#include <arpa/inet.h>
41
31 */
32
33#include <sys/types.h>
34#include <sys/param.h>
35#include <sys/socket.h>
36
37#include <netkey/key_var.h>
38#include <netinet/in.h>
39#include <netinet6/ipsec.h>
40
41#include <arpa/inet.h>
42
43#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44#include <netdb.h>
45
46#include "ipsec_strerror.h"
47
48static const char *ipsp_dir_strs[] = {
49 "any", "in", "out",
50};
51
52static const char *ipsp_policy_strs[] = {
53 "discard", "none", "ipsec", "entrust", "bypass",
54};
55
44#include <stdlib.h>
45#include <string.h>
46#include <netdb.h>
47
48#include "ipsec_strerror.h"
49
50static const char *ipsp_dir_strs[] = {
51 "any", "in", "out",
52};
53
54static const char *ipsp_policy_strs[] = {
55 "discard", "none", "ipsec", "entrust", "bypass",
56};
57
56static int set_addresses __P((char *buf, caddr_t ptr));
58static char *ipsec_dump_ipsecrequest __P((char *, size_t,
59 struct sadb_x_ipsecrequest *, size_t));
60static int set_addresses __P((char *, size_t, struct sockaddr *,
61 struct sockaddr *));
62static char *set_address __P((char *, size_t, struct sockaddr *));
57
58/*
59 * policy is sadb_x_policy buffer.
60 * Must call free() later.
61 * When delimiter == NULL, alternatively ' '(space) is applied.
62 */
63char *
64ipsec_dump_policy(policy, delimiter)
65 caddr_t policy;
66 char *delimiter;
67{
68 struct sadb_x_policy *xpl = (struct sadb_x_policy *)policy;
69 struct sadb_x_ipsecrequest *xisr;
63
64/*
65 * policy is sadb_x_policy buffer.
66 * Must call free() later.
67 * When delimiter == NULL, alternatively ' '(space) is applied.
68 */
69char *
70ipsec_dump_policy(policy, delimiter)
71 caddr_t policy;
72 char *delimiter;
73{
74 struct sadb_x_policy *xpl = (struct sadb_x_policy *)policy;
75 struct sadb_x_ipsecrequest *xisr;
70 int xtlen, buflen;
76 size_t off, buflen;
71 char *buf;
77 char *buf;
72 int error;
78 char isrbuf[1024];
79 char *newbuf;
73
74 /* sanity check */
75 if (policy == NULL)
76 return NULL;
77 if (xpl->sadb_x_policy_exttype != SADB_X_EXT_POLICY) {
80
81 /* sanity check */
82 if (policy == NULL)
83 return NULL;
84 if (xpl->sadb_x_policy_exttype != SADB_X_EXT_POLICY) {
78 ipsec_errcode = EIPSEC_INVAL_EXTTYPE;
85 __ipsec_errcode = EIPSEC_INVAL_EXTTYPE;
79 return NULL;
80 }
81
82 /* set delimiter */
83 if (delimiter == NULL)
84 delimiter = " ";
85
86 switch (xpl->sadb_x_policy_dir) {
87 case IPSEC_DIR_ANY:
88 case IPSEC_DIR_INBOUND:
89 case IPSEC_DIR_OUTBOUND:
90 break;
91 default:
86 return NULL;
87 }
88
89 /* set delimiter */
90 if (delimiter == NULL)
91 delimiter = " ";
92
93 switch (xpl->sadb_x_policy_dir) {
94 case IPSEC_DIR_ANY:
95 case IPSEC_DIR_INBOUND:
96 case IPSEC_DIR_OUTBOUND:
97 break;
98 default:
92 ipsec_errcode = EIPSEC_INVAL_DIR;
99 __ipsec_errcode = EIPSEC_INVAL_DIR;
93 return NULL;
94 }
95
96 switch (xpl->sadb_x_policy_type) {
97 case IPSEC_POLICY_DISCARD:
98 case IPSEC_POLICY_NONE:
99 case IPSEC_POLICY_IPSEC:
100 case IPSEC_POLICY_BYPASS:
101 case IPSEC_POLICY_ENTRUST:
102 break;
103 default:
100 return NULL;
101 }
102
103 switch (xpl->sadb_x_policy_type) {
104 case IPSEC_POLICY_DISCARD:
105 case IPSEC_POLICY_NONE:
106 case IPSEC_POLICY_IPSEC:
107 case IPSEC_POLICY_BYPASS:
108 case IPSEC_POLICY_ENTRUST:
109 break;
110 default:
104 ipsec_errcode = EIPSEC_INVAL_POLICY;
111 __ipsec_errcode = EIPSEC_INVAL_POLICY;
105 return NULL;
106 }
107
108 buflen = strlen(ipsp_dir_strs[xpl->sadb_x_policy_dir])
109 + 1 /* space */
110 + strlen(ipsp_policy_strs[xpl->sadb_x_policy_type])
111 + 1; /* NUL */
112
113 if ((buf = malloc(buflen)) == NULL) {
112 return NULL;
113 }
114
115 buflen = strlen(ipsp_dir_strs[xpl->sadb_x_policy_dir])
116 + 1 /* space */
117 + strlen(ipsp_policy_strs[xpl->sadb_x_policy_type])
118 + 1; /* NUL */
119
120 if ((buf = malloc(buflen)) == NULL) {
114 ipsec_errcode = EIPSEC_NO_BUFS;
121 __ipsec_errcode = EIPSEC_NO_BUFS;
115 return NULL;
116 }
122 return NULL;
123 }
117 strcpy(buf, ipsp_dir_strs[xpl->sadb_x_policy_dir]);
118 strcat(buf, " ");
119 strcat(buf, ipsp_policy_strs[xpl->sadb_x_policy_type]);
124 snprintf(buf, buflen, "%s %s", ipsp_dir_strs[xpl->sadb_x_policy_dir],
125 ipsp_policy_strs[xpl->sadb_x_policy_type]);
120
121 if (xpl->sadb_x_policy_type != IPSEC_POLICY_IPSEC) {
126
127 if (xpl->sadb_x_policy_type != IPSEC_POLICY_IPSEC) {
122 ipsec_errcode = EIPSEC_NO_ERROR;
128 __ipsec_errcode = EIPSEC_NO_ERROR;
123 return buf;
124 }
125
129 return buf;
130 }
131
126 xtlen = PFKEY_EXTLEN(xpl) - sizeof(*xpl);
127 xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);
128
129 /* count length of buffer for use */
132 /* count length of buffer for use */
130 /* XXX non-seriously */
131 while (xtlen > 0) {
132 buflen += 20;
133 if (xisr->sadb_x_ipsecrequest_mode ==IPSEC_MODE_TUNNEL)
134 buflen += 50;
135 xtlen -= xisr->sadb_x_ipsecrequest_len;
136 xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
137 + xisr->sadb_x_ipsecrequest_len);
133 off = sizeof(*xpl);
134 while (off < PFKEY_EXTLEN(xpl)) {
135 xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xpl + off);
136 off += xisr->sadb_x_ipsecrequest_len;
138 }
139
140 /* validity check */
137 }
138
139 /* validity check */
141 if (xtlen < 0) {
142 ipsec_errcode = EIPSEC_INVAL_SADBMSG;
140 if (off != PFKEY_EXTLEN(xpl)) {
141 __ipsec_errcode = EIPSEC_INVAL_SADBMSG;
143 free(buf);
144 return NULL;
145 }
146
142 free(buf);
143 return NULL;
144 }
145
147 if ((buf = realloc(buf, buflen)) == NULL) {
148 ipsec_errcode = EIPSEC_NO_BUFS;
149 return NULL;
150 }
146 off = sizeof(*xpl);
147 while (off < PFKEY_EXTLEN(xpl)) {
148 xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xpl + off);
151
149
152 xtlen = PFKEY_EXTLEN(xpl) - sizeof(*xpl);
153 xisr = (struct sadb_x_ipsecrequest *)(xpl + 1);
154
155 while (xtlen > 0) {
156 strcat(buf, delimiter);
157
158 switch (xisr->sadb_x_ipsecrequest_proto) {
159 case IPPROTO_ESP:
160 strcat(buf, "esp");
161 break;
162 case IPPROTO_AH:
163 strcat(buf, "ah");
164 break;
165 case IPPROTO_IPCOMP:
166 strcat(buf, "ipcomp");
167 break;
168 default:
169 ipsec_errcode = EIPSEC_INVAL_PROTO;
150 if (ipsec_dump_ipsecrequest(isrbuf, sizeof(isrbuf), xisr,
151 PFKEY_EXTLEN(xpl) - off) == NULL) {
170 free(buf);
171 return NULL;
172 }
173
152 free(buf);
153 return NULL;
154 }
155
174 strcat(buf, "/");
175
176 switch (xisr->sadb_x_ipsecrequest_mode) {
177 case IPSEC_MODE_ANY:
178 strcat(buf, "any");
179 break;
180 case IPSEC_MODE_TRANSPORT:
181 strcat(buf, "transport");
182 break;
183 case IPSEC_MODE_TUNNEL:
184 strcat(buf, "tunnel");
185 break;
186 default:
187 ipsec_errcode = EIPSEC_INVAL_MODE;
156 buflen = strlen(buf) + strlen(delimiter) + strlen(isrbuf) + 1;
157 newbuf = (char *)realloc(buf, buflen);
158 if (newbuf == NULL) {
159 __ipsec_errcode = EIPSEC_NO_BUFS;
188 free(buf);
189 return NULL;
190 }
160 free(buf);
161 return NULL;
162 }
163 buf = newbuf;
164 snprintf(buf, buflen, "%s%s%s", buf, delimiter, isrbuf);
191
165
192 strcat(buf, "/");
166 off += xisr->sadb_x_ipsecrequest_len;
167 }
193
168
194 if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
195 error = set_addresses(buf, (caddr_t)(xisr + 1));
196 if (error) {
197 ipsec_errcode = EIPSEC_INVAL_MODE;
198 free(buf);
199 return NULL;
200 }
201 }
169 __ipsec_errcode = EIPSEC_NO_ERROR;
170 return buf;
171}
202
172
203 switch (xisr->sadb_x_ipsecrequest_level) {
204 case IPSEC_LEVEL_DEFAULT:
205 strcat(buf, "/default");
206 break;
207 case IPSEC_LEVEL_USE:
208 strcat(buf, "/use");
209 break;
210 case IPSEC_LEVEL_REQUIRE:
211 strcat(buf, "/require");
212 break;
213 case IPSEC_LEVEL_UNIQUE:
214 strcat(buf, "/unique");
215 break;
216 default:
217 ipsec_errcode = EIPSEC_INVAL_LEVEL;
218 free(buf);
173static char *
174ipsec_dump_ipsecrequest(buf, len, xisr, bound)
175 char *buf;
176 size_t len;
177 struct sadb_x_ipsecrequest *xisr;
178 size_t bound; /* boundary */
179{
180 const char *proto, *mode, *level;
181 char abuf[NI_MAXHOST * 2 + 2];
182
183 if (xisr->sadb_x_ipsecrequest_len > bound) {
184 __ipsec_errcode = EIPSEC_INVAL_PROTO;
185 return NULL;
186 }
187
188 switch (xisr->sadb_x_ipsecrequest_proto) {
189 case IPPROTO_ESP:
190 proto = "esp";
191 break;
192 case IPPROTO_AH:
193 proto = "ah";
194 break;
195 case IPPROTO_IPCOMP:
196 proto = "ipcomp";
197 break;
198 default:
199 __ipsec_errcode = EIPSEC_INVAL_PROTO;
200 return NULL;
201 }
202
203 switch (xisr->sadb_x_ipsecrequest_mode) {
204 case IPSEC_MODE_ANY:
205 mode = "any";
206 break;
207 case IPSEC_MODE_TRANSPORT:
208 mode = "transport";
209 break;
210 case IPSEC_MODE_TUNNEL:
211 mode = "tunnel";
212 break;
213 default:
214 __ipsec_errcode = EIPSEC_INVAL_MODE;
215 return NULL;
216 }
217
218 abuf[0] = '\0';
219 if (xisr->sadb_x_ipsecrequest_len > sizeof(*xisr)) {
220 struct sockaddr *sa1, *sa2;
221 caddr_t p;
222
223 p = (caddr_t)(xisr + 1);
224 sa1 = (struct sockaddr *)p;
225 sa2 = (struct sockaddr *)(p + sa1->sa_len);
226 if (sizeof(*xisr) + sa1->sa_len + sa2->sa_len !=
227 xisr->sadb_x_ipsecrequest_len) {
228 __ipsec_errcode = EIPSEC_INVAL_ADDRESS;
219 return NULL;
220 }
229 return NULL;
230 }
231 if (set_addresses(abuf, sizeof(abuf), sa1, sa2) != 0) {
232 __ipsec_errcode = EIPSEC_INVAL_ADDRESS;
233 return NULL;
234 }
235 }
221
236
222 xtlen -= xisr->sadb_x_ipsecrequest_len;
223 xisr = (struct sadb_x_ipsecrequest *)((caddr_t)xisr
224 + xisr->sadb_x_ipsecrequest_len);
237 switch (xisr->sadb_x_ipsecrequest_level) {
238 case IPSEC_LEVEL_DEFAULT:
239 level = "default";
240 break;
241 case IPSEC_LEVEL_USE:
242 level = "use";
243 break;
244 case IPSEC_LEVEL_REQUIRE:
245 level = "require";
246 break;
247 case IPSEC_LEVEL_UNIQUE:
248 level = "unique";
249 break;
250 default:
251 __ipsec_errcode = EIPSEC_INVAL_LEVEL;
252 return NULL;
225 }
226
253 }
254
227 ipsec_errcode = EIPSEC_NO_ERROR;
255 if (xisr->sadb_x_ipsecrequest_reqid == 0)
256 snprintf(buf, len, "%s/%s/%s/%s", proto, mode, abuf, level);
257 else {
258 int ch;
259
260 if (xisr->sadb_x_ipsecrequest_reqid > IPSEC_MANUAL_REQID_MAX)
261 ch = '#';
262 else
263 ch = ':';
264 snprintf(buf, len, "%s/%s/%s/%s%c%d", proto, mode, abuf, level,
265 ch, xisr->sadb_x_ipsecrequest_reqid);
266 }
267
228 return buf;
229}
230
231static int
268 return buf;
269}
270
271static int
232set_addresses(buf, ptr)
272set_addresses(buf, len, sa1, sa2)
233 char *buf;
273 char *buf;
234 caddr_t ptr;
274 size_t len;
275 struct sockaddr *sa1;
276 struct sockaddr *sa2;
235{
277{
236 char tmp[100]; /* XXX */
237 struct sockaddr *saddr = (struct sockaddr *)ptr;
278 char tmp1[NI_MAXHOST], tmp2[NI_MAXHOST];
238
279
239 getnameinfo(saddr, saddr->sa_len, tmp, sizeof(tmp),
240 NULL, 0, NI_NUMERICHOST);
280 if (set_address(tmp1, sizeof(tmp1), sa1) == NULL ||
281 set_address(tmp2, sizeof(tmp2), sa2) == NULL)
282 return -1;
283 if (strlen(tmp1) + 1 + strlen(tmp2) + 1 > len)
284 return -1;
285 snprintf(buf, len, "%s-%s", tmp1, tmp2);
286 return 0;
287}
241
288
242 strcat(buf, tmp);
289static char *
290set_address(buf, len, sa)
291 char *buf;
292 size_t len;
293 struct sockaddr *sa;
294{
295#ifdef NI_WITHSCOPEID
296 const int niflags = NI_NUMERICHOST | NI_WITHSCOPEID;
297#else
298 const int niflags = NI_NUMERICHOST;
299#endif
243
300
244 strcat(buf, "-");
245
246 saddr = (struct sockaddr *)((caddr_t)saddr + saddr->sa_len);
247 getnameinfo(saddr, saddr->sa_len, tmp, sizeof(tmp),
248 NULL, 0, NI_NUMERICHOST);
249
250 strcat(buf, tmp);
251
252 return 0;
301 if (len < 1)
302 return NULL;
303 buf[0] = '\0';
304 if (getnameinfo(sa, sa->sa_len, buf, len, NULL, 0, niflags) != 0)
305 return NULL;
306 return buf;
253}
307}