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sdiff udiff text old ( 139255 ) new ( 145522 )
full compact
ip_proxy.c (139255) ip_proxy.c (145522)
1/* $FreeBSD: head/sys/contrib/ipfilter/netinet/ip_proxy.c 145522 2005-04-25 18:43:14Z darrenr $ */
2
1/*
3/*
2 * Copyright (C) 1997-2002 by Darren Reed.
4 * Copyright (C) 1997-2003 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 */
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 */
6
7#if defined(__FreeBSD__) && defined(KERNEL) && !defined(_KERNEL)
8# define _KERNEL
8#if defined(KERNEL) || defined(_KERNEL)
9# undef KERNEL
10# undef _KERNEL
11# define KERNEL 1
12# define _KERNEL 1
9#endif
13#endif
10
11#if defined(__sgi) && (IRIX > 602)
12# include <sys/ptimers.h>
13#endif
14#include <sys/errno.h>
15#include <sys/types.h>
16#include <sys/param.h>
17#include <sys/time.h>
18#include <sys/file.h>
14#include <sys/errno.h>
15#include <sys/types.h>
16#include <sys/param.h>
17#include <sys/time.h>
18#include <sys/file.h>
19#if !defined(__FreeBSD_version)
20# include <sys/ioctl.h>
21#endif
22#include <sys/fcntl.h>
19#include <sys/fcntl.h>
23#if !defined(_KERNEL) && !defined(KERNEL)
20#if !defined(_KERNEL) && !defined(__KERNEL__)
24# include <stdio.h>
25# include <string.h>
26# include <stdlib.h>
21# include <stdio.h>
22# include <string.h>
23# include <stdlib.h>
24# include <ctype.h>
25# define _KERNEL
26# ifdef __OpenBSD__
27struct file;
28# endif
29# include <sys/uio.h>
30# undef _KERNEL
27#endif
31#endif
28#ifndef linux
32#if !defined(linux)
29# include <sys/protosw.h>
30#endif
31#include <sys/socket.h>
32#if defined(_KERNEL)
33# include <sys/protosw.h>
34#endif
35#include <sys/socket.h>
36#if defined(_KERNEL)
33# if !defined(linux)
34# include <sys/systm.h>
35# else
36# include <linux/string.h>
37# if !defined(__NetBSD__) && !defined(sun) && !defined(__osf__) && \
38 !defined(__OpenBSD__) && !defined(__hpux) && !defined(__sgi)
39# include <sys/ctype.h>
37# endif
40# endif
38#endif
39#if !defined(__SVR4) && !defined(__svr4__)
40# ifndef linux
41# include <sys/systm.h>
42# if !defined(__SVR4) && !defined(__svr4__)
41# include <sys/mbuf.h>
42# endif
43# include <sys/mbuf.h>
44# endif
45#endif
46#if defined(_KERNEL) && (__FreeBSD_version >= 220000)
47# include <sys/filio.h>
48# include <sys/fcntl.h>
49# if (__FreeBSD_version >= 300000) && !defined(IPFILTER_LKM)
50# include "opt_ipfilter.h"
51# endif
43#else
52#else
53# include <sys/ioctl.h>
54#endif
55#if defined(__SVR4) || defined(__svr4__)
44# include <sys/byteorder.h>
45# ifdef _KERNEL
46# include <sys/dditypes.h>
47# endif
48# include <sys/stream.h>
49# include <sys/kmem.h>
50#endif
51#if __FreeBSD__ > 2

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

70#include "netinet/ip_fil.h"
71#include "netinet/ip_nat.h"
72#include "netinet/ip_state.h"
73#include "netinet/ip_proxy.h"
74#if (__FreeBSD_version >= 300000)
75# include <sys/malloc.h>
76#endif
77
56# include <sys/byteorder.h>
57# ifdef _KERNEL
58# include <sys/dditypes.h>
59# endif
60# include <sys/stream.h>
61# include <sys/kmem.h>
62#endif
63#if __FreeBSD__ > 2

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

82#include "netinet/ip_fil.h"
83#include "netinet/ip_nat.h"
84#include "netinet/ip_state.h"
85#include "netinet/ip_proxy.h"
86#if (__FreeBSD_version >= 300000)
87# include <sys/malloc.h>
88#endif
89
78#if !defined(lint)
79/* static const char rcsid[] = "@(#)$Id: ip_proxy.c,v 2.9.2.6 2001/07/15 22:06:15 darrenr Exp $"; */
80static const char rcsid[] = "@(#)$FreeBSD: head/sys/contrib/ipfilter/netinet/ip_proxy.c 139255 2004-12-24 09:14:26Z darrenr $";
90#include "netinet/ip_ftp_pxy.c"
91#include "netinet/ip_rcmd_pxy.c"
92# include "netinet/ip_pptp_pxy.c"
93#if defined(_KERNEL)
94# include "netinet/ip_irc_pxy.c"
95# include "netinet/ip_raudio_pxy.c"
96# include "netinet/ip_h323_pxy.c"
97# ifdef IPFILTER_PRO
98# include "netinet/ip_msnrpc_pxy.c"
99# endif
100# include "netinet/ip_netbios_pxy.c"
81#endif
101#endif
102#include "netinet/ip_ipsec_pxy.c"
103#include "netinet/ip_rpcb_pxy.c"
82
104
83#ifdef USE_MUTEX
84extern KRWLOCK_T ipf_nat, ipf_state;
105/* END OF INCLUDES */
106
107#if !defined(lint)
108static const char rcsid[] = "@(#)Id: ip_proxy.c,v 2.62.2.12 2005/03/03 14:28:24 darrenr Exp";
85#endif
86
87static int appr_fixseqack __P((fr_info_t *, ip_t *, ap_session_t *, int ));
88
109#endif
110
111static int appr_fixseqack __P((fr_info_t *, ip_t *, ap_session_t *, int ));
112
89
90#define PROXY_DEBUG 0
91
92#define AP_SESS_SIZE 53
93
113#define AP_SESS_SIZE 53
114
94#include "netinet/ip_ftp_pxy.c"
95#if defined(_KERNEL)
115#if defined(_KERNEL)
96#include "netinet/ip_rcmd_pxy.c"
97#include "netinet/ip_raudio_pxy.c"
98#include "netinet/ip_netbios_pxy.c"
99#include "netinet/ip_ipsec_pxy.c"
116int ipf_proxy_debug = 0;
117#else
118int ipf_proxy_debug = 2;
100#endif
119#endif
101
102ap_session_t *ap_sess_tab[AP_SESS_SIZE];
103ap_session_t *ap_sess_list = NULL;
104aproxy_t *ap_proxylist = NULL;
105aproxy_t ap_proxies[] = {
106#ifdef IPF_FTP_PROXY
120ap_session_t *ap_sess_tab[AP_SESS_SIZE];
121ap_session_t *ap_sess_list = NULL;
122aproxy_t *ap_proxylist = NULL;
123aproxy_t ap_proxies[] = {
124#ifdef IPF_FTP_PROXY
107 { NULL, "ftp", (char)IPPROTO_TCP, 0, 0, ippr_ftp_init, NULL,
125 { NULL, "ftp", (char)IPPROTO_TCP, 0, 0, ippr_ftp_init, ippr_ftp_fini,
108 ippr_ftp_new, NULL, ippr_ftp_in, ippr_ftp_out, NULL },
109#endif
126 ippr_ftp_new, NULL, ippr_ftp_in, ippr_ftp_out, NULL },
127#endif
128#ifdef IPF_IRC_PROXY
129 { NULL, "irc", (char)IPPROTO_TCP, 0, 0, ippr_irc_init, ippr_irc_fini,
130 ippr_irc_new, NULL, NULL, ippr_irc_out, NULL, NULL },
131#endif
110#ifdef IPF_RCMD_PROXY
132#ifdef IPF_RCMD_PROXY
111 { NULL, "rcmd", (char)IPPROTO_TCP, 0, 0, ippr_rcmd_init, NULL,
112 ippr_rcmd_new, NULL, NULL, ippr_rcmd_out, NULL },
133 { NULL, "rcmd", (char)IPPROTO_TCP, 0, 0, ippr_rcmd_init, ippr_rcmd_fini,
134 ippr_rcmd_new, NULL, ippr_rcmd_in, ippr_rcmd_out, NULL, NULL },
113#endif
114#ifdef IPF_RAUDIO_PROXY
135#endif
136#ifdef IPF_RAUDIO_PROXY
115 { NULL, "raudio", (char)IPPROTO_TCP, 0, 0, ippr_raudio_init, NULL,
116 ippr_raudio_new, NULL, ippr_raudio_in, ippr_raudio_out, NULL },
137 { NULL, "raudio", (char)IPPROTO_TCP, 0, 0, ippr_raudio_init, ippr_raudio_fini,
138 ippr_raudio_new, NULL, ippr_raudio_in, ippr_raudio_out, NULL, NULL },
117#endif
139#endif
118#ifdef IPF_IPSEC_PROXY
119 { NULL, "ipsec", (char)IPPROTO_UDP, 0, 0, ippr_ipsec_init, NULL,
120 ippr_ipsec_new, ippr_ipsec_del, NULL, ippr_ipsec_out,
121 ippr_ipsec_match },
140#ifdef IPF_MSNRPC_PROXY
141 { NULL, "msnrpc", (char)IPPROTO_TCP, 0, 0, ippr_msnrpc_init, ippr_msnrpc_fini,
142 ippr_msnrpc_new, NULL, ippr_msnrpc_in, ippr_msnrpc_out, NULL, NULL },
122#endif
123#ifdef IPF_NETBIOS_PROXY
143#endif
144#ifdef IPF_NETBIOS_PROXY
124 { NULL, "netbios", (char)IPPROTO_UDP, 0, 0, ippr_netbios_init, NULL,
125 NULL, NULL, NULL, ippr_netbios_out, NULL },
145 { NULL, "netbios", (char)IPPROTO_UDP, 0, 0, ippr_netbios_init, ippr_netbios_fini,
146 NULL, NULL, NULL, ippr_netbios_out, NULL, NULL },
126#endif
147#endif
148#ifdef IPF_IPSEC_PROXY
149 { NULL, "ipsec", (char)IPPROTO_UDP, 0, 0,
150 ippr_ipsec_init, ippr_ipsec_fini, ippr_ipsec_new, ippr_ipsec_del,
151 ippr_ipsec_inout, ippr_ipsec_inout, ippr_ipsec_match, NULL },
152#endif
153#ifdef IPF_PPTP_PROXY
154 { NULL, "pptp", (char)IPPROTO_TCP, 0, 0,
155 ippr_pptp_init, ippr_pptp_fini, ippr_pptp_new, ippr_pptp_del,
156 ippr_pptp_inout, ippr_pptp_inout, NULL, NULL },
157#endif
127#ifdef IPF_H323_PROXY
158#ifdef IPF_H323_PROXY
128 { NULL, "h323", (char)IPPROTO_TCP, 0, 0, ippr_h323_init, NULL,
129 ippr_h323_new, ippr_h323_del, ippr_h323_in, ippr_h323_out, NULL },
130 { NULL, "h245", (char)IPPROTO_TCP, 0, 0, ippr_h245_init, NULL,
131 ippr_h245_new, NULL, NULL, ippr_h245_out, NULL },
132#endif
133 { NULL, "", '\0', 0, 0, NULL, NULL, NULL }
159 { NULL, "h323", (char)IPPROTO_TCP, 0, 0, ippr_h323_init, ippr_h323_fini,
160 ippr_h323_new, ippr_h323_del, ippr_h323_in, NULL, NULL },
161 { NULL, "h245", (char)IPPROTO_TCP, 0, 0, NULL, NULL,
162 ippr_h245_new, NULL, NULL, ippr_h245_out, NULL },
163#endif
164#ifdef IPF_RPCB_PROXY
165# if 0
166 { NULL, "rpcbt", (char)IPPROTO_TCP, 0, 0,
167 ippr_rpcb_init, ippr_rpcb_fini, ippr_rpcb_new, ippr_rpcb_del,
168 ippr_rpcb_in, ippr_rpcb_out, NULL, NULL },
169# endif
170 { NULL, "rpcbu", (char)IPPROTO_UDP, 0, 0,
171 ippr_rpcb_init, ippr_rpcb_fini, ippr_rpcb_new, ippr_rpcb_del,
172 ippr_rpcb_in, ippr_rpcb_out, NULL, NULL },
173#endif
174 { NULL, "", '\0', 0, 0, NULL, NULL, NULL, NULL }
134};
135
175};
176
136
137/*
138 * Dynamically add a new kernel proxy. Ensure that it is unique in the
139 * collection compiled in and dynamically added.
140 */
141int appr_add(ap)
142aproxy_t *ap;
143{
144 aproxy_t *a;
145
146 for (a = ap_proxies; a->apr_p; a++)
147 if ((a->apr_p == ap->apr_p) &&
148 !strncmp(a->apr_label, ap->apr_label,
177/*
178 * Dynamically add a new kernel proxy. Ensure that it is unique in the
179 * collection compiled in and dynamically added.
180 */
181int appr_add(ap)
182aproxy_t *ap;
183{
184 aproxy_t *a;
185
186 for (a = ap_proxies; a->apr_p; a++)
187 if ((a->apr_p == ap->apr_p) &&
188 !strncmp(a->apr_label, ap->apr_label,
149 sizeof(ap->apr_label)))
189 sizeof(ap->apr_label))) {
190 if (ipf_proxy_debug > 1)
191 printf("appr_add: %s/%d already present (B)\n",
192 a->apr_label, a->apr_p);
150 return -1;
193 return -1;
194 }
151
195
152 for (a = ap_proxylist; a && a->apr_p; a = a->apr_next)
196 for (a = ap_proxylist; a->apr_p; a = a->apr_next)
153 if ((a->apr_p == ap->apr_p) &&
154 !strncmp(a->apr_label, ap->apr_label,
197 if ((a->apr_p == ap->apr_p) &&
198 !strncmp(a->apr_label, ap->apr_label,
155 sizeof(ap->apr_label)))
199 sizeof(ap->apr_label))) {
200 if (ipf_proxy_debug > 1)
201 printf("appr_add: %s/%d already present (D)\n",
202 a->apr_label, a->apr_p);
156 return -1;
203 return -1;
204 }
157 ap->apr_next = ap_proxylist;
158 ap_proxylist = ap;
205 ap->apr_next = ap_proxylist;
206 ap_proxylist = ap;
159 return (*ap->apr_init)();
207 if (ap->apr_init != NULL)
208 return (*ap->apr_init)();
209 return 0;
160}
161
162
163/*
210}
211
212
213/*
214 * Check to see if the proxy this control request has come through for
215 * exists, and if it does and it has a control function then invoke that
216 * control function.
217 */
218int appr_ctl(ctl)
219ap_ctl_t *ctl;
220{
221 aproxy_t *a;
222 int error;
223
224 a = appr_lookup(ctl->apc_p, ctl->apc_label);
225 if (a == NULL) {
226 if (ipf_proxy_debug > 1)
227 printf("appr_ctl: can't find %s/%d\n",
228 ctl->apc_label, ctl->apc_p);
229 error = ESRCH;
230 } else if (a->apr_ctl == NULL) {
231 if (ipf_proxy_debug > 1)
232 printf("appr_ctl: no ctl function for %s/%d\n",
233 ctl->apc_label, ctl->apc_p);
234 error = ENXIO;
235 } else {
236 error = (*a->apr_ctl)(a, ctl);
237 if ((error != 0) && (ipf_proxy_debug > 1))
238 printf("appr_ctl: %s/%d ctl error %d\n",
239 a->apr_label, a->apr_p, error);
240 }
241 return error;
242}
243
244
245/*
164 * Delete a proxy that has been added dynamically from those available.
165 * If it is in use, return 1 (do not destroy NOW), not in use 0 or -1
166 * if it cannot be matched.
167 */
168int appr_del(ap)
169aproxy_t *ap;
170{
171 aproxy_t *a, **app;
172
246 * Delete a proxy that has been added dynamically from those available.
247 * If it is in use, return 1 (do not destroy NOW), not in use 0 or -1
248 * if it cannot be matched.
249 */
250int appr_del(ap)
251aproxy_t *ap;
252{
253 aproxy_t *a, **app;
254
173 for (app = &ap_proxylist; (a = *app); app = &a->apr_next)
255 for (app = &ap_proxylist; ((a = *app) != NULL); app = &a->apr_next)
174 if (a == ap) {
175 a->apr_flags |= APR_DELETE;
176 *app = a->apr_next;
256 if (a == ap) {
257 a->apr_flags |= APR_DELETE;
258 *app = a->apr_next;
177 if (ap->apr_ref != 0)
259 if (ap->apr_ref != 0) {
260 if (ipf_proxy_debug > 2)
261 printf("appr_del: orphaning %s/%d\n",
262 ap->apr_label, ap->apr_p);
178 return 1;
263 return 1;
264 }
179 return 0;
180 }
265 return 0;
266 }
267 if (ipf_proxy_debug > 1)
268 printf("appr_del: proxy %lx not found\n", (u_long)ap);
181 return -1;
182}
183
184
185/*
186 * Return 1 if the packet is a good match against a proxy, else 0.
187 */
269 return -1;
270}
271
272
273/*
274 * Return 1 if the packet is a good match against a proxy, else 0.
275 */
188int appr_ok(ip, tcp, nat)
189ip_t *ip;
276int appr_ok(fin, tcp, nat)
277fr_info_t *fin;
190tcphdr_t *tcp;
191ipnat_t *nat;
192{
193 aproxy_t *apr = nat->in_apr;
194 u_short dport = nat->in_dport;
195
196 if ((apr == NULL) || (apr->apr_flags & APR_DELETE) ||
278tcphdr_t *tcp;
279ipnat_t *nat;
280{
281 aproxy_t *apr = nat->in_apr;
282 u_short dport = nat->in_dport;
283
284 if ((apr == NULL) || (apr->apr_flags & APR_DELETE) ||
197 (ip->ip_p != apr->apr_p))
285 (fin->fin_p != apr->apr_p))
198 return 0;
286 return 0;
199 if (((tcp != NULL) && (tcp->th_dport != dport)) || (!tcp && dport))
287 if ((tcp == NULL) && dport)
200 return 0;
201 return 1;
202}
203
204
288 return 0;
289 return 1;
290}
291
292
293int appr_ioctl(data, cmd, mode)
294caddr_t data;
295ioctlcmd_t cmd;
296int mode;
297{
298 ap_ctl_t ctl;
299 caddr_t ptr;
300 int error;
301
302 mode = mode; /* LINT */
303
304 switch (cmd)
305 {
306 case SIOCPROXY :
307 BCOPYIN(data, &ctl, sizeof(ctl));
308 ptr = NULL;
309
310 if (ctl.apc_dsize > 0) {
311 KMALLOCS(ptr, caddr_t, ctl.apc_dsize);
312 if (ptr == NULL)
313 error = ENOMEM;
314 else {
315 error = copyinptr(ctl.apc_data, ptr,
316 ctl.apc_dsize);
317 if (error == 0)
318 ctl.apc_data = ptr;
319 }
320 } else {
321 ctl.apc_data = NULL;
322 error = 0;
323 }
324
325 if (error == 0)
326 error = appr_ctl(&ctl);
327
328 if ((ctl.apc_dsize > 0) && (ptr != NULL) &&
329 (ctl.apc_data == ptr)) {
330 KFREES(ptr, ctl.apc_dsize);
331 }
332 break;
333
334 default :
335 error = EINVAL;
336 }
337 return error;
338}
339
340
205/*
206 * If a proxy has a match function, call that to do extended packet
207 * matching.
208 */
209int appr_match(fin, nat)
210fr_info_t *fin;
211nat_t *nat;
212{
213 aproxy_t *apr;
214 ipnat_t *ipn;
341/*
342 * If a proxy has a match function, call that to do extended packet
343 * matching.
344 */
345int appr_match(fin, nat)
346fr_info_t *fin;
347nat_t *nat;
348{
349 aproxy_t *apr;
350 ipnat_t *ipn;
351 int result;
215
216 ipn = nat->nat_ptr;
352
353 ipn = nat->nat_ptr;
217 if (ipn == NULL)
354 if (ipf_proxy_debug > 8)
355 printf("appr_match(%lx,%lx) aps %lx ptr %lx\n",
356 (u_long)fin, (u_long)nat, (u_long)nat->nat_aps,
357 (u_long)ipn);
358
359 if ((fin->fin_flx & (FI_SHORT|FI_BAD)) != 0) {
360 if (ipf_proxy_debug > 0)
361 printf("appr_match: flx 0x%x (BAD|SHORT)\n",
362 fin->fin_flx);
218 return -1;
363 return -1;
364 }
365
219 apr = ipn->in_apr;
366 apr = ipn->in_apr;
220 if ((apr == NULL) || (apr->apr_flags & APR_DELETE) ||
221 (nat->nat_aps == NULL))
367 if ((apr == NULL) || (apr->apr_flags & APR_DELETE)) {
368 if (ipf_proxy_debug > 0)
369 printf("appr_match:apr %lx apr_flags 0x%x\n",
370 (u_long)apr, apr ? apr->apr_flags : 0);
222 return -1;
371 return -1;
223 if (apr->apr_match != NULL)
224 if ((*apr->apr_match)(fin, nat->nat_aps, nat) != 0)
372 }
373
374 if (apr->apr_match != NULL) {
375 result = (*apr->apr_match)(fin, nat->nat_aps, nat);
376 if (result != 0) {
377 if (ipf_proxy_debug > 4)
378 printf("appr_match: result %d\n", result);
225 return -1;
379 return -1;
380 }
381 }
226 return 0;
227}
228
229
230/*
231 * Allocate a new application proxy structure and fill it in with the
232 * relevant details. call the init function once complete, prior to
233 * returning.
234 */
382 return 0;
383}
384
385
386/*
387 * Allocate a new application proxy structure and fill it in with the
388 * relevant details. call the init function once complete, prior to
389 * returning.
390 */
235int appr_new(fin, ip, nat)
391int appr_new(fin, nat)
236fr_info_t *fin;
392fr_info_t *fin;
237ip_t *ip;
238nat_t *nat;
239{
240 register ap_session_t *aps;
241 aproxy_t *apr;
242
393nat_t *nat;
394{
395 register ap_session_t *aps;
396 aproxy_t *apr;
397
243 if ((nat->nat_ptr == NULL) || (nat->nat_aps != NULL))
398 if (ipf_proxy_debug > 8)
399 printf("appr_new(%lx,%lx) \n", (u_long)fin, (u_long)nat);
400
401 if ((nat->nat_ptr == NULL) || (nat->nat_aps != NULL)) {
402 if (ipf_proxy_debug > 0)
403 printf("appr_new: nat_ptr %lx nat_aps %lx\n",
404 (u_long)nat->nat_ptr, (u_long)nat->nat_aps);
244 return -1;
405 return -1;
406 }
245
246 apr = nat->nat_ptr->in_apr;
247
407
408 apr = nat->nat_ptr->in_apr;
409
248 if (!apr || (apr->apr_flags & APR_DELETE) || (ip->ip_p != apr->apr_p))
410 if ((apr->apr_flags & APR_DELETE) ||
411 (fin->fin_p != apr->apr_p)) {
412 if (ipf_proxy_debug > 2)
413 printf("appr_new: apr_flags 0x%x p %d/%d\n",
414 apr->apr_flags, fin->fin_p, apr->apr_p);
249 return -1;
415 return -1;
416 }
250
251 KMALLOC(aps, ap_session_t *);
417
418 KMALLOC(aps, ap_session_t *);
252 if (!aps)
419 if (!aps) {
420 if (ipf_proxy_debug > 0)
421 printf("appr_new: malloc failed (%lu)\n",
422 (u_long)sizeof(ap_session_t));
253 return -1;
423 return -1;
424 }
425
254 bzero((char *)aps, sizeof(*aps));
426 bzero((char *)aps, sizeof(*aps));
255 aps->aps_p = ip->ip_p;
427 aps->aps_p = fin->fin_p;
256 aps->aps_data = NULL;
257 aps->aps_apr = apr;
258 aps->aps_psiz = 0;
259 if (apr->apr_new != NULL)
428 aps->aps_data = NULL;
429 aps->aps_apr = apr;
430 aps->aps_psiz = 0;
431 if (apr->apr_new != NULL)
260 if ((*apr->apr_new)(fin, ip, aps, nat) == -1) {
432 if ((*apr->apr_new)(fin, aps, nat) == -1) {
261 if ((aps->aps_data != NULL) && (aps->aps_psiz != 0)) {
262 KFREES(aps->aps_data, aps->aps_psiz);
263 }
264 KFREE(aps);
433 if ((aps->aps_data != NULL) && (aps->aps_psiz != 0)) {
434 KFREES(aps->aps_data, aps->aps_psiz);
435 }
436 KFREE(aps);
437 if (ipf_proxy_debug > 2)
438 printf("appr_new: new(%lx) failed\n",
439 (u_long)apr->apr_new);
265 return -1;
266 }
267 aps->aps_nat = nat;
268 aps->aps_next = ap_sess_list;
269 ap_sess_list = aps;
270 nat->nat_aps = aps;
271
272 return 0;
273}
274
275
276/*
440 return -1;
441 }
442 aps->aps_nat = nat;
443 aps->aps_next = ap_sess_list;
444 ap_sess_list = aps;
445 nat->nat_aps = aps;
446
447 return 0;
448}
449
450
451/*
277 * check to see if a packet should be passed through an active proxy routine
278 * if one has been setup for it.
452 * Check to see if a packet should be passed through an active proxy routine
453 * if one has been setup for it. We don't need to check the checksum here if
454 * IPFILTER_CKSUM is defined because if it is, a failed check causes FI_BAD
455 * to be set.
279 */
456 */
280int appr_check(ip, fin, nat)
281ip_t *ip;
457int appr_check(fin, nat)
282fr_info_t *fin;
283nat_t *nat;
284{
285#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
458fr_info_t *fin;
459nat_t *nat;
460{
461#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
286 mb_t *m = fin->fin_qfm;
462# if defined(ICK_VALID)
463 mb_t *m;
464# endif
287 int dosum = 1;
288#endif
289 tcphdr_t *tcp = NULL;
465 int dosum = 1;
466#endif
467 tcphdr_t *tcp = NULL;
468 udphdr_t *udp = NULL;
290 ap_session_t *aps;
291 aproxy_t *apr;
469 ap_session_t *aps;
470 aproxy_t *apr;
292 u_32_t sum;
471 ip_t *ip;
293 short rv;
294 int err;
472 short rv;
473 int err;
474#if !defined(_KERNEL) || defined(MENTAT) || defined(__sgi)
475 u_32_t s1, s2, sd;
476#endif
295
477
296 aps = nat->nat_aps;
297 if ((aps != NULL) && (aps->aps_p == ip->ip_p)) {
298 if (ip->ip_p == IPPROTO_TCP) {
299 tcp = (tcphdr_t *)fin->fin_dp;
300 /*
301 * verify that the checksum is correct. If not, then
302 * don't do anything with this packet.
303 */
304#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
305 if (dohwcksum && (m->b_ick_flag == ICK_VALID)) {
306 sum = tcp->th_sum;
307 dosum = 0;
308 }
309 if (dosum)
310 sum = fr_tcpsum(fin->fin_qfm, ip, tcp);
311#else
312 sum = fr_tcpsum(*(mb_t **)fin->fin_mp, ip, tcp);
478 if (fin->fin_flx & FI_BAD) {
479 if (ipf_proxy_debug > 0)
480 printf("appr_check: flx 0x%x (BAD)\n", fin->fin_flx);
481 return -1;
482 }
483
484#ifndef IPFILTER_CKSUM
485 if ((fin->fin_out == 0) && (fr_checkl4sum(fin) == -1)) {
486 if (ipf_proxy_debug > 0)
487 printf("appr_check: l4 checksum failure %d\n",
488 fin->fin_p);
489 if (fin->fin_p == IPPROTO_TCP)
490 frstats[fin->fin_out].fr_tcpbad++;
491 return -1;
492 }
313#endif
493#endif
314 if (sum != tcp->th_sum) {
315#if PROXY_DEBUG || (!defined(_KERNEL) && !defined(KERNEL))
316 printf("proxy tcp checksum failure\n");
317#endif
318 frstats[fin->fin_out].fr_tcpbad++;
494
495 aps = nat->nat_aps;
496 if ((aps != NULL) && (aps->aps_p == fin->fin_p)) {
497 /*
498 * If there is data in this packet to be proxied then try and
499 * get it all into the one buffer, else drop it.
500 */
501#if defined(MENTAT) || defined(HAVE_M_PULLDOWN)
502 if ((fin->fin_dlen > 0) && !(fin->fin_flx & FI_COALESCE))
503 if (fr_coalesce(fin) == -1) {
504 if (ipf_proxy_debug > 0)
505 printf("appr_check: fr_coalesce failed %x\n", fin->fin_flx);
319 return -1;
320 }
506 return -1;
507 }
508#endif
509 ip = fin->fin_ip;
321
510
511 switch (fin->fin_p)
512 {
513 case IPPROTO_TCP :
514 tcp = (tcphdr_t *)fin->fin_dp;
515
516#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6) && defined(ICK_VALID)
517 m = fin->fin_qfm;
518 if (dohwcksum && (m->b_ick_flag == ICK_VALID))
519 dosum = 0;
520#endif
322 /*
323 * Don't bother the proxy with these...or in fact,
324 * should we free up proxy stuff when seen?
325 */
521 /*
522 * Don't bother the proxy with these...or in fact,
523 * should we free up proxy stuff when seen?
524 */
326 if ((tcp->th_flags & TH_RST) != 0)
327 return 0;
525 if ((fin->fin_tcpf & TH_RST) != 0)
526 break;
527 /*FALLTHROUGH*/
528 case IPPROTO_UDP :
529 udp = (udphdr_t *)fin->fin_dp;
530 break;
531 default :
532 break;
328 }
329
330 apr = aps->aps_apr;
331 err = 0;
332 if (fin->fin_out != 0) {
333 if (apr->apr_outpkt != NULL)
533 }
534
535 apr = aps->aps_apr;
536 err = 0;
537 if (fin->fin_out != 0) {
538 if (apr->apr_outpkt != NULL)
334 err = (*apr->apr_outpkt)(fin, ip, aps, nat);
539 err = (*apr->apr_outpkt)(fin, aps, nat);
335 } else {
336 if (apr->apr_inpkt != NULL)
540 } else {
541 if (apr->apr_inpkt != NULL)
337 err = (*apr->apr_inpkt)(fin, ip, aps, nat);
542 err = (*apr->apr_inpkt)(fin, aps, nat);
338 }
339
340 rv = APR_EXIT(err);
543 }
544
545 rv = APR_EXIT(err);
341 if (rv == 1) {
342#if PROXY_DEBUG || (!defined(_KERNEL) && !defined(KERNEL))
343 printf("proxy says bad packet received\n");
344#endif
546 if (((ipf_proxy_debug > 0) && (rv != 0)) ||
547 (ipf_proxy_debug > 8))
548 printf("appr_check: out %d err %x rv %d\n",
549 fin->fin_out, err, rv);
550 if (rv == 1)
345 return -1;
551 return -1;
346 }
552
347 if (rv == 2) {
553 if (rv == 2) {
348#if PROXY_DEBUG || (!defined(_KERNEL) && !defined(KERNEL))
349 printf("proxy says free app proxy data\n");
350#endif
351 appr_free(apr);
352 nat->nat_aps = NULL;
353 return -1;
354 }
355
554 appr_free(apr);
555 nat->nat_aps = NULL;
556 return -1;
557 }
558
559 /*
560 * If err != 0 then the data size of the packet has changed
561 * so we need to recalculate the header checksums for the
562 * packet.
563 */
564#if !defined(_KERNEL) || defined(MENTAT) || defined(__sgi)
565 if (err != 0) {
566 short adjlen = err & 0xffff;
567
568 s1 = LONG_SUM(ip->ip_len - adjlen);
569 s2 = LONG_SUM(ip->ip_len);
570 CALC_SUMD(s1, s2, sd);
571 fix_outcksum(fin, &ip->ip_sum, sd);
572 }
573#endif
574
575 /*
576 * For TCP packets, we may need to adjust the sequence and
577 * acknowledgement numbers to reflect changes in size of the
578 * data stream.
579 *
580 * For both TCP and UDP, recalculate the layer 4 checksum,
581 * regardless, as we can't tell (here) if data has been
582 * changed or not.
583 */
356 if (tcp != NULL) {
357 err = appr_fixseqack(fin, ip, aps, APR_INC(err));
358#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
359 if (dosum)
584 if (tcp != NULL) {
585 err = appr_fixseqack(fin, ip, aps, APR_INC(err));
586#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
587 if (dosum)
360 tcp->th_sum = fr_tcpsum(fin->fin_qfm, ip, tcp);
588 tcp->th_sum = fr_cksum(fin->fin_qfm, ip,
589 IPPROTO_TCP, tcp);
361#else
590#else
362 tcp->th_sum = fr_tcpsum(*(mb_t **)fin->fin_mp, ip, tcp);
591 tcp->th_sum = fr_cksum(fin->fin_m, ip,
592 IPPROTO_TCP, tcp);
363#endif
593#endif
594 } else if ((udp != NULL) && (udp->uh_sum != 0)) {
595#if SOLARIS && defined(_KERNEL) && (SOLARIS2 >= 6)
596 if (dosum)
597 udp->uh_sum = fr_cksum(fin->fin_qfm, ip,
598 IPPROTO_UDP, udp);
599#else
600 udp->uh_sum = fr_cksum(fin->fin_m, ip,
601 IPPROTO_UDP, udp);
602#endif
364 }
603 }
365 aps->aps_bytes += ip->ip_len;
604 aps->aps_bytes += fin->fin_plen;
366 aps->aps_pkts++;
367 return 1;
368 }
369 return 0;
370}
371
372
373/*
374 * Search for an proxy by the protocol it is being used with and its name.
375 */
376aproxy_t *appr_lookup(pr, name)
377u_int pr;
378char *name;
379{
380 aproxy_t *ap;
381
605 aps->aps_pkts++;
606 return 1;
607 }
608 return 0;
609}
610
611
612/*
613 * Search for an proxy by the protocol it is being used with and its name.
614 */
615aproxy_t *appr_lookup(pr, name)
616u_int pr;
617char *name;
618{
619 aproxy_t *ap;
620
621 if (ipf_proxy_debug > 8)
622 printf("appr_lookup(%d,%s)\n", pr, name);
623
382 for (ap = ap_proxies; ap->apr_p; ap++)
383 if ((ap->apr_p == pr) &&
384 !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
385 ap->apr_ref++;
386 return ap;
387 }
388
389 for (ap = ap_proxylist; ap; ap = ap->apr_next)
390 if ((ap->apr_p == pr) &&
391 !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
392 ap->apr_ref++;
393 return ap;
394 }
624 for (ap = ap_proxies; ap->apr_p; ap++)
625 if ((ap->apr_p == pr) &&
626 !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
627 ap->apr_ref++;
628 return ap;
629 }
630
631 for (ap = ap_proxylist; ap; ap = ap->apr_next)
632 if ((ap->apr_p == pr) &&
633 !strncmp(name, ap->apr_label, sizeof(ap->apr_label))) {
634 ap->apr_ref++;
635 return ap;
636 }
637 if (ipf_proxy_debug > 2)
638 printf("appr_lookup: failed for %d/%s\n", pr, name);
395 return NULL;
396}
397
398
399void appr_free(ap)
400aproxy_t *ap;
401{
402 ap->apr_ref--;

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

407ap_session_t *aps;
408{
409 ap_session_t *a, **ap;
410 aproxy_t *apr;
411
412 if (!aps)
413 return;
414
639 return NULL;
640}
641
642
643void appr_free(ap)
644aproxy_t *ap;
645{
646 ap->apr_ref--;

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

651ap_session_t *aps;
652{
653 ap_session_t *a, **ap;
654 aproxy_t *apr;
655
656 if (!aps)
657 return;
658
415 for (ap = &ap_sess_list; (a = *ap); ap = &a->aps_next)
659 for (ap = &ap_sess_list; ((a = *ap) != NULL); ap = &a->aps_next)
416 if (a == aps) {
417 *ap = a->aps_next;
418 break;
419 }
420
421 apr = aps->aps_apr;
422 if ((apr != NULL) && (apr->apr_del != NULL))
423 (*apr->apr_del)(aps);

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

443 short inc2;
444
445 tcp = (tcphdr_t *)fin->fin_dp;
446 out = fin->fin_out;
447 /*
448 * ip_len has already been adjusted by 'inc'.
449 */
450 nlen = ip->ip_len;
660 if (a == aps) {
661 *ap = a->aps_next;
662 break;
663 }
664
665 apr = aps->aps_apr;
666 if ((apr != NULL) && (apr->apr_del != NULL))
667 (*apr->apr_del)(aps);

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

687 short inc2;
688
689 tcp = (tcphdr_t *)fin->fin_dp;
690 out = fin->fin_out;
691 /*
692 * ip_len has already been adjusted by 'inc'.
693 */
694 nlen = ip->ip_len;
451 nlen -= (ip->ip_hl << 2) + (tcp->th_off << 2);
695 nlen -= (IP_HL(ip) << 2) + (TCP_OFF(tcp) << 2);
452
453 inc2 = inc;
454 inc = (int)inc2;
455
456 if (out != 0) {
457 seq1 = (u_32_t)ntohl(tcp->th_seq);
458 sel = aps->aps_sel[out];
459
460 /* switch to other set ? */
461 if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
462 (seq1 > aps->aps_seqmin[!sel])) {
696
697 inc2 = inc;
698 inc = (int)inc2;
699
700 if (out != 0) {
701 seq1 = (u_32_t)ntohl(tcp->th_seq);
702 sel = aps->aps_sel[out];
703
704 /* switch to other set ? */
705 if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
706 (seq1 > aps->aps_seqmin[!sel])) {
463#if PROXY_DEBUG
464 printf("proxy out switch set seq %d -> %d %x > %x\n",
465 sel, !sel, seq1, aps->aps_seqmin[!sel]);
466#endif
707 if (ipf_proxy_debug > 7)
708 printf("proxy out switch set seq %d -> %d %x > %x\n",
709 sel, !sel, seq1,
710 aps->aps_seqmin[!sel]);
467 sel = aps->aps_sel[out] = !sel;
468 }
469
470 if (aps->aps_seqoff[sel]) {
471 seq2 = aps->aps_seqmin[sel] - aps->aps_seqoff[sel];
472 if (seq1 > seq2) {
473 seq2 = aps->aps_seqoff[sel];
474 seq1 += seq2;
475 tcp->th_seq = htonl(seq1);
476 ch = 1;
477 }
478 }
479
480 if (inc && (seq1 > aps->aps_seqmin[!sel])) {
481 aps->aps_seqmin[sel] = seq1 + nlen - 1;
482 aps->aps_seqoff[sel] = aps->aps_seqoff[sel] + inc;
711 sel = aps->aps_sel[out] = !sel;
712 }
713
714 if (aps->aps_seqoff[sel]) {
715 seq2 = aps->aps_seqmin[sel] - aps->aps_seqoff[sel];
716 if (seq1 > seq2) {
717 seq2 = aps->aps_seqoff[sel];
718 seq1 += seq2;
719 tcp->th_seq = htonl(seq1);
720 ch = 1;
721 }
722 }
723
724 if (inc && (seq1 > aps->aps_seqmin[!sel])) {
725 aps->aps_seqmin[sel] = seq1 + nlen - 1;
726 aps->aps_seqoff[sel] = aps->aps_seqoff[sel] + inc;
483#if PROXY_DEBUG
484 printf("proxy seq set %d at %x to %d + %d\n", sel,
485 aps->aps_seqmin[sel], aps->aps_seqoff[sel],
486 inc);
487#endif
727 if (ipf_proxy_debug > 7)
728 printf("proxy seq set %d at %x to %d + %d\n",
729 sel, aps->aps_seqmin[sel],
730 aps->aps_seqoff[sel], inc);
488 }
489
490 /***/
491
492 seq1 = ntohl(tcp->th_ack);
493 sel = aps->aps_sel[1 - out];
494
495 /* switch to other set ? */
496 if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
497 (seq1 > aps->aps_ackmin[!sel])) {
731 }
732
733 /***/
734
735 seq1 = ntohl(tcp->th_ack);
736 sel = aps->aps_sel[1 - out];
737
738 /* switch to other set ? */
739 if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
740 (seq1 > aps->aps_ackmin[!sel])) {
498#if PROXY_DEBUG
499 printf("proxy out switch set ack %d -> %d %x > %x\n",
500 sel, !sel, seq1, aps->aps_ackmin[!sel]);
501#endif
741 if (ipf_proxy_debug > 7)
742 printf("proxy out switch set ack %d -> %d %x > %x\n",
743 sel, !sel, seq1,
744 aps->aps_ackmin[!sel]);
502 sel = aps->aps_sel[1 - out] = !sel;
503 }
504
505 if (aps->aps_ackoff[sel] && (seq1 > aps->aps_ackmin[sel])) {
506 seq2 = aps->aps_ackoff[sel];
507 tcp->th_ack = htonl(seq1 - seq2);
508 ch = 1;
509 }
510 } else {
511 seq1 = ntohl(tcp->th_seq);
512 sel = aps->aps_sel[out];
513
514 /* switch to other set ? */
515 if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
516 (seq1 > aps->aps_ackmin[!sel])) {
745 sel = aps->aps_sel[1 - out] = !sel;
746 }
747
748 if (aps->aps_ackoff[sel] && (seq1 > aps->aps_ackmin[sel])) {
749 seq2 = aps->aps_ackoff[sel];
750 tcp->th_ack = htonl(seq1 - seq2);
751 ch = 1;
752 }
753 } else {
754 seq1 = ntohl(tcp->th_seq);
755 sel = aps->aps_sel[out];
756
757 /* switch to other set ? */
758 if ((aps->aps_ackmin[!sel] > aps->aps_ackmin[sel]) &&
759 (seq1 > aps->aps_ackmin[!sel])) {
517#if PROXY_DEBUG
518 printf("proxy in switch set ack %d -> %d %x > %x\n",
519 sel, !sel, seq1, aps->aps_ackmin[!sel]);
520#endif
760 if (ipf_proxy_debug > 7)
761 printf("proxy in switch set ack %d -> %d %x > %x\n",
762 sel, !sel, seq1, aps->aps_ackmin[!sel]);
521 sel = aps->aps_sel[out] = !sel;
522 }
523
524 if (aps->aps_ackoff[sel]) {
525 seq2 = aps->aps_ackmin[sel] - aps->aps_ackoff[sel];
526 if (seq1 > seq2) {
527 seq2 = aps->aps_ackoff[sel];
528 seq1 += seq2;
529 tcp->th_seq = htonl(seq1);
530 ch = 1;
531 }
532 }
533
534 if (inc && (seq1 > aps->aps_ackmin[!sel])) {
535 aps->aps_ackmin[!sel] = seq1 + nlen - 1;
536 aps->aps_ackoff[!sel] = aps->aps_ackoff[sel] + inc;
763 sel = aps->aps_sel[out] = !sel;
764 }
765
766 if (aps->aps_ackoff[sel]) {
767 seq2 = aps->aps_ackmin[sel] - aps->aps_ackoff[sel];
768 if (seq1 > seq2) {
769 seq2 = aps->aps_ackoff[sel];
770 seq1 += seq2;
771 tcp->th_seq = htonl(seq1);
772 ch = 1;
773 }
774 }
775
776 if (inc && (seq1 > aps->aps_ackmin[!sel])) {
777 aps->aps_ackmin[!sel] = seq1 + nlen - 1;
778 aps->aps_ackoff[!sel] = aps->aps_ackoff[sel] + inc;
537#if PROXY_DEBUG
538 printf("proxy ack set %d at %x to %d + %d\n", !sel,
539 aps->aps_seqmin[!sel], aps->aps_seqoff[sel],
540 inc);
541#endif
779
780 if (ipf_proxy_debug > 7)
781 printf("proxy ack set %d at %x to %d + %d\n",
782 !sel, aps->aps_seqmin[!sel],
783 aps->aps_seqoff[sel], inc);
542 }
543
544 /***/
545
546 seq1 = ntohl(tcp->th_ack);
547 sel = aps->aps_sel[1 - out];
548
549 /* switch to other set ? */
550 if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
551 (seq1 > aps->aps_seqmin[!sel])) {
784 }
785
786 /***/
787
788 seq1 = ntohl(tcp->th_ack);
789 sel = aps->aps_sel[1 - out];
790
791 /* switch to other set ? */
792 if ((aps->aps_seqmin[!sel] > aps->aps_seqmin[sel]) &&
793 (seq1 > aps->aps_seqmin[!sel])) {
552#if PROXY_DEBUG
553 printf("proxy in switch set seq %d -> %d %x > %x\n",
554 sel, !sel, seq1, aps->aps_seqmin[!sel]);
555#endif
794 if (ipf_proxy_debug > 7)
795 printf("proxy in switch set seq %d -> %d %x > %x\n",
796 sel, !sel, seq1, aps->aps_seqmin[!sel]);
556 sel = aps->aps_sel[1 - out] = !sel;
557 }
558
559 if (aps->aps_seqoff[sel] != 0) {
797 sel = aps->aps_sel[1 - out] = !sel;
798 }
799
800 if (aps->aps_seqoff[sel] != 0) {
560#if PROXY_DEBUG
561 printf("sel %d seqoff %d seq1 %x seqmin %x\n", sel,
562 aps->aps_seqoff[sel], seq1,
563 aps->aps_seqmin[sel]);
564#endif
801 if (ipf_proxy_debug > 7)
802 printf("sel %d seqoff %d seq1 %x seqmin %x\n",
803 sel, aps->aps_seqoff[sel], seq1,
804 aps->aps_seqmin[sel]);
565 if (seq1 > aps->aps_seqmin[sel]) {
566 seq2 = aps->aps_seqoff[sel];
567 tcp->th_ack = htonl(seq1 - seq2);
568 ch = 1;
569 }
570 }
571 }
805 if (seq1 > aps->aps_seqmin[sel]) {
806 seq2 = aps->aps_seqoff[sel];
807 tcp->th_ack = htonl(seq1 - seq2);
808 ch = 1;
809 }
810 }
811 }
572#if PROXY_DEBUG
573 printf("appr_fixseqack: seq %x ack %x\n", ntohl(tcp->th_seq),
574 ntohl(tcp->th_ack));
575#endif
812
813 if (ipf_proxy_debug > 8)
814 printf("appr_fixseqack: seq %x ack %x\n",
815 ntohl(tcp->th_seq), ntohl(tcp->th_ack));
576 return ch ? 2 : 0;
577}
578
579
580/*
581 * Initialise hook for kernel application proxies.
582 * Call the initialise routine for all the compiled in kernel proxies.
583 */
584int appr_init()
585{
586 aproxy_t *ap;
587 int err = 0;
588
589 for (ap = ap_proxies; ap->apr_p; ap++) {
816 return ch ? 2 : 0;
817}
818
819
820/*
821 * Initialise hook for kernel application proxies.
822 * Call the initialise routine for all the compiled in kernel proxies.
823 */
824int appr_init()
825{
826 aproxy_t *ap;
827 int err = 0;
828
829 for (ap = ap_proxies; ap->apr_p; ap++) {
590 err = (*ap->apr_init)();
591 if (err != 0)
592 break;
830 if (ap->apr_init != NULL) {
831 err = (*ap->apr_init)();
832 if (err != 0)
833 break;
834 }
593 }
594 return err;
595}
596
597
598/*
599 * Unload hook for kernel application proxies.
600 * Call the finialise routine for all the compiled in kernel proxies.
601 */
602void appr_unload()
603{
604 aproxy_t *ap;
605
606 for (ap = ap_proxies; ap->apr_p; ap++)
835 }
836 return err;
837}
838
839
840/*
841 * Unload hook for kernel application proxies.
842 * Call the finialise routine for all the compiled in kernel proxies.
843 */
844void appr_unload()
845{
846 aproxy_t *ap;
847
848 for (ap = ap_proxies; ap->apr_p; ap++)
607 if (ap->apr_fini)
849 if (ap->apr_fini != NULL)
608 (*ap->apr_fini)();
609 for (ap = ap_proxylist; ap; ap = ap->apr_next)
850 (*ap->apr_fini)();
851 for (ap = ap_proxylist; ap; ap = ap->apr_next)
610 if (ap->apr_fini)
852 if (ap->apr_fini != NULL)
611 (*ap->apr_fini)();
612}
853 (*ap->apr_fini)();
854}