]> git.ipfire.org Git - thirdparty/squid.git/blame - src/wccp2.cc
projects / thirdparty / squid.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Bug 2038: check reply_body_max_size before ICAP
[thirdparty/squid.git] / src / wccp2.cc
CommitLineData
0b0cfcf2 1
2/*
2adffc6f 3 * $Id: wccp2.cc,v 1.22 2008/02/05 22:39:42 amosjeffries Exp $
0b0cfcf2 4 *
5 * DEBUG: section 80 WCCP Support
47c151e0 6 * AUTHOR: Steven Wilton
0b0cfcf2 7 *
8 * SQUID Web Proxy Cache http://www.squid-cache.org/
9 * ----------------------------------------------------------
10 *
11 * Squid is the result of efforts by numerous individuals from
12 * the Internet community; see the CONTRIBUTORS file for full
13 * details. Many organizations have provided support for Squid's
14 * development; see the SPONSORS file for full details. Squid is
15 * Copyrighted (C) 2001 by the Regents of the University of
16 * California; see the COPYRIGHT file for full details. Squid
17 * incorporates software developed and/or copyrighted by other
18 * sources; see the CREDITS file for full details.
19 *
20 * This program is free software; you can redistribute it and/or modify
21 * it under the terms of the GNU General Public License as published by
22 * the Free Software Foundation; either version 2 of the License, or
23 * (at your option) any later version.
24 *
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
29 *
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
33 *
34 */
bf8fe701 35
0b0cfcf2 36#include "squid.h"
37#include "comm.h"
a553a5a3 38#include "event.h"
0b0cfcf2 39#include "Parsing.h"
a553a5a3 40#include "Store.h"
bef81ea5 41#include "SwapDir.h"
cc192b50 42#include "IPAddress.h"
0b0cfcf2 43
44#if USE_WCCPv2
45#include <netdb.h>
46
47#define WCCP_PORT 2048
0b0cfcf2 48#define WCCP_RESPONSE_SIZE 12448
0b0cfcf2 49#define WCCP_BUCKETS 256
50
0b0cfcf2 51static int theWccp2Connection = -1;
52static int wccp2_connected = 0;
53
54static PF wccp2HandleUdp;
55static EVH wccp2HereIam;
56static EVH wccp2AssignBuckets;
57
58/* KDW WCCP V2 */
59#define WCCP2_HERE_I_AM 10
60#define WCCP2_I_SEE_YOU 11
61#define WCCP2_REDIRECT_ASSIGN 12
62#define WCCP2_REMOVAL_QUERY 13
c1f55201 63
0b0cfcf2 64#define WCCP2_VERSION 0x200
65
66#define WCCP2_SECURITY_INFO 0
67#define WCCP2_NO_SECURITY 0
68#define WCCP2_MD5_SECURITY 1
69
70#define WCCP2_SERVICE_INFO 1
71#define WCCP2_SERVICE_STANDARD 0
72#define WCCP2_SERVICE_DYNAMIC 1
73#define WCCP2_SERVICE_ID_HTTP 0x00
74
75#define WCCP2_SERVICE_SRC_IP_HASH 0x1
76#define WCCP2_SERVICE_DST_IP_HASH 0x2
b7d249f9 77#define WCCP2_SERVICE_SRC_PORT_HASH 0x4
0b0cfcf2 78#define WCCP2_SERVICE_DST_PORT_HASH 0x8
79#define WCCP2_SERVICE_PORTS_DEFINED 0x10
80#define WCCP2_SERVICE_PORTS_SOURCE 0x20
81#define WCCP2_SERVICE_SRC_IP_ALT_HASH 0x100
82#define WCCP2_SERVICE_DST_IP_ALT_HASH 0x200
83#define WCCP2_SERVICE_SRC_PORT_ALT_HASH 0x400
84#define WCCP2_SERVICE_DST_PORT_ALT_HASH 0x800
85
86#define WCCP2_ROUTER_ID_INFO 2
87
88#define WCCP2_WC_ID_INFO 3
89
90#define WCCP2_RTR_VIEW_INFO 4
91
92#define WCCP2_WC_VIEW_INFO 5
93
94#define WCCP2_REDIRECT_ASSIGNMENT 6
95
96#define WCCP2_QUERY_INFO 7
97
98#define WCCP2_CAPABILITY_INFO 8
99
b7d249f9 100#define WCCP2_ALT_ASSIGNMENT 13
101
102#define WCCP2_ASSIGN_MAP 14
103
104#define WCCP2_COMMAND_EXTENSION 15
105
0b0cfcf2 106#define WCCP2_CAPABILITY_FORWARDING_METHOD 0x01
107#define WCCP2_CAPABILITY_ASSIGNMENT_METHOD 0x02
108#define WCCP2_CAPABILITY_RETURN_METHOD 0x03
109
c1f55201 110#define WCCP2_FORWARDING_METHOD_GRE 0x00000001
111#define WCCP2_FORWARDING_METHOD_L2 0x00000002
112
113#define WCCP2_ASSIGNMENT_METHOD_HASH 0x00000001
114#define WCCP2_ASSIGNMENT_METHOD_MASK 0x00000002
115
116#define WCCP2_PACKET_RETURN_METHOD_GRE 0x00000001
117#define WCCP2_PACKET_RETURN_METHOD_L2 0x00000002
0b0cfcf2 118
b7d249f9 119#define WCCP2_HASH_ASSIGNMENT 0x00
120#define WCCP2_MASK_ASSIGNMENT 0x01
121
0b0cfcf2 122#define WCCP2_NONE_SECURITY_LEN 0
123#define WCCP2_MD5_SECURITY_LEN 16
124
125/* Useful defines */
126#define WCCP2_NUMPORTS 8
127#define WCCP2_PASSWORD_LEN 8
128
129/* WCCP v2 packet header */
130
cc192b50 131/// \interface WCCPv2 Protocol
0b0cfcf2 132struct wccp2_here_i_am_header_t
133{
134 uint32_t type;
135 uint16_t version;
136 uint16_t length;
137};
138
139static struct wccp2_here_i_am_header_t wccp2_here_i_am_header;
140
141/* Security struct for the "no security" option */
142
143struct wccp2_security_none_t
144{
145 uint16_t security_type;
146 uint16_t security_length;
147 uint32_t security_option;
148};
149
cc192b50 150/// \interface WCCPv2 Protocol
0b0cfcf2 151struct wccp2_security_md5_t
152{
153 uint16_t security_type;
154 uint16_t security_length;
155 uint32_t security_option;
156 uint8_t security_implementation[WCCP2_MD5_SECURITY_LEN];
157};
158
159/* Service info struct */
160
cc192b50 161/// \interface WCCPv2 Protocol
0b0cfcf2 162struct wccp2_service_info_t
163{
164 uint16_t service_type;
165 uint16_t service_length;
166 uint8_t service;
167 uint8_t service_id;
168 uint8_t service_priority;
169 uint8_t service_protocol;
170 uint32_t service_flags;
171 uint16_t port0;
172 uint16_t port1;
173 uint16_t port2;
174 uint16_t port3;
175 uint16_t port4;
176 uint16_t port5;
177 uint16_t port6;
178 uint16_t port7;
179};
180
cc192b50 181/// \interface WCCPv2 Protocol
0b0cfcf2 182struct wccp2_cache_identity_info_t
183{
cc192b50 184 struct in_addr addr;
0b0cfcf2 185 uint16_t hash_revision;
186 char bits[2];
187 char buckets[32];
188 uint16_t weight;
189 uint16_t status;
190};
191
192/* Web Cache identity info */
193
cc192b50 194/// \interface WCCPv2 Protocol
0b0cfcf2 195struct wccp2_identity_info_t
196{
197 uint16_t cache_identity_type;
198 uint16_t cache_identity_length;
199
200 struct wccp2_cache_identity_info_t cache_identity;
201};
202
203static struct wccp2_identity_info_t wccp2_identity_info;
204
cc192b50 205/// \interface WCCPv2 Protocol
b7d249f9 206struct wccp2_cache_mask_identity_info_t
207{
cc192b50 208 struct in_addr addr;
b7d249f9 209 uint32_t num1;
210 uint32_t num2;
211 uint32_t source_ip_mask;
212 uint32_t dest_ip_mask;
213 uint16_t source_port_mask;
214 uint16_t dest_port_mask;
215 uint32_t num3;
216 uint32_t num4;
217};
218
219/* Web Cache identity info */
220
cc192b50 221/// \interface WCCPv2 Protocol
b7d249f9 222struct wccp2_mask_identity_info_t
223{
224 uint16_t cache_identity_type;
225 uint16_t cache_identity_length;
226
227 struct wccp2_cache_mask_identity_info_t cache_identity;
228};
229
230static struct wccp2_mask_identity_info_t wccp2_mask_identity_info;
231
0b0cfcf2 232/* View header */
233
cc192b50 234/// \interface WCCPv2 Protocol
0b0cfcf2 235struct wccp2_cache_view_header_t
236{
237 uint16_t cache_view_type;
238 uint16_t cache_view_length;
239 uint32_t cache_view_version;
240};
241
242static struct wccp2_cache_view_header_t wccp2_cache_view_header;
243
244/* View info */
245
cc192b50 246/// \interface WCCPv2 Protocol
0b0cfcf2 247struct wccp2_cache_view_info_t
248{
249 uint32_t num_routers;
250 uint32_t num_caches;
251};
252
253static struct wccp2_cache_view_info_t wccp2_cache_view_info;
254
255/* Router ID element */
256
cc192b50 257/// \interface WCCPv2 Protocol
0b0cfcf2 258struct wccp2_router_id_element_t
259{
cc192b50 260 struct in_addr router_address;
0b0cfcf2 261 uint32_t received_id;
262};
263
264static struct wccp2_router_id_element_t wccp2_router_id_element;
265
266/* Capability info header */
267
cc192b50 268/// \interface WCCpv2 Protocol
0b0cfcf2 269struct wccp2_capability_info_header_t
270{
271 uint16_t capability_info_type;
272 uint16_t capability_info_length;
273};
274
275static struct wccp2_capability_info_header_t wccp2_capability_info_header;
276
c1f55201 277/* Capability element header */
278
cc192b50 279/// \interface WCCPv2 Protocol
c1f55201 280struct wccp2_capability_element_header_t
281{
282 uint16_t capability_type;
283 uint16_t capability_length;
284};
285
0b0cfcf2 286/* Capability element */
287
cc192b50 288/// \interface WCCPv2 Protocol
0b0cfcf2 289struct wccp2_capability_element_t
290{
291 uint16_t capability_type;
292 uint16_t capability_length;
293 uint32_t capability_value;
294};
295
296static struct wccp2_capability_element_t wccp2_capability_element;
297
b7d249f9 298/* Mask Element */
299
cc192b50 300/// \interface WCCPv2 Protocol
b7d249f9 301struct wccp2_mask_element_t
302{
303 uint32_t source_ip_mask;
304 uint32_t dest_ip_mask;
305 uint16_t source_port_mask;
306 uint16_t dest_port_mask;
307 uint32_t number_values;
308};
309
310/* Value Element */
311
cc192b50 312/// \interface WCCPv2 Protocol
b7d249f9 313struct wccp2_value_element_t
314{
315 uint32_t source_ip_value;
316 uint32_t dest_ip_value;
317 uint16_t source_port_value;
318 uint16_t dest_port_value;
319
cc192b50 320 struct in_addr cache_ip;
b7d249f9 321};
0b0cfcf2 322
323/* RECEIVED PACKET STRUCTURE */
324
cc192b50 325/// \interface WCCPv2 Protocol
0b0cfcf2 326struct wccp2_i_see_you_t
327{
328 uint32_t type;
329 uint16_t version;
330 uint16_t length;
331 char data[WCCP_RESPONSE_SIZE];
332};
333
334static struct wccp2_i_see_you_t wccp2_i_see_you;
335
336/* Router ID element */
337
cc192b50 338/// \interface WCCPv2 Protocol
0b0cfcf2 339struct wccp2_router_assign_element_t
340{
cc192b50 341 struct in_addr router_address;
0b0cfcf2 342 uint32_t received_id;
343 uint32_t change_number;
344};
345
346/* Generic header struct */
347
cc192b50 348/// \interface WCCPv2 Protocol
0b0cfcf2 349struct wccp2_item_header_t
350{
351 uint16_t type;
352 uint16_t length;
353};
354
355/* Router identity struct */
356
cc192b50 357/// \interface WCCPv2 Protocol
0b0cfcf2 358struct router_identity_info_t
359{
360
361 struct wccp2_item_header_t header;
362
363 struct wccp2_router_id_element_t router_id_element;
364
2adffc6f 365 struct in_addr router_address;
0b0cfcf2 366 uint32_t number_caches;
367};
368
b7d249f9 369/* The received packet for a mask assignment is unusual */
370
cc192b50 371/// \interface WCCPv2 Protocol
b7d249f9 372struct cache_mask_info_t
373{
cc192b50 374 struct in_addr addr;
b7d249f9 375 uint32_t num1;
376 uint32_t num2;
377 uint32_t num3;
378};
379
0b0cfcf2 380/* assigment key */
381
cc192b50 382/// \interface WCCPv2 Protocol
0b0cfcf2 383struct assignment_key_t
384{
cc192b50 385 struct in_addr master_ip;
0b0cfcf2 386 uint32_t master_number;
387};
388
389/* Router view of WCCP */
390
cc192b50 391/// \interface WCCPv2 Protocol
0b0cfcf2 392struct router_view_t
393{
394
395 struct wccp2_item_header_t header;
396 uint32_t change_number;
397
398 struct assignment_key_t assignment_key;
399};
400
0b0cfcf2 401/* Lists used to keep track of caches, routers and services */
402
cc192b50 403/// \interface WCCPv2 Protocol
0b0cfcf2 404struct wccp2_cache_list_t
405{
406
cc192b50 407 struct in_addr cache_ip;
0b0cfcf2 408
f16fbc82 409 int weight;
410
0b0cfcf2 411 struct wccp2_cache_list_t *next;
412};
413
cc192b50 414/// \interface WCCPv2 Protocol
0b0cfcf2 415struct wccp2_router_list_t
416{
417
418 struct wccp2_router_id_element_t *info;
419
cc192b50 420 struct in_addr local_ip;
0b0cfcf2 421
cc192b50 422 struct in_addr router_sendto_address;
0b0cfcf2 423 uint32_t member_change;
424 uint32_t num_caches;
425
426 struct wccp2_cache_list_t cache_list_head;
427
428 struct wccp2_router_list_t *next;
429};
430
431static int wccp2_numrouters;
432
cc192b50 433/// \interface WCCPv2 Protocol
0b0cfcf2 434struct wccp2_service_list_t
435{
436
437 struct wccp2_service_info_t info;
438 uint32_t num_routers;
439
440 struct wccp2_router_list_t router_list_head;
441 int lowest_ip;
442 uint32_t change_num;
443
b7d249f9 444 char *wccp2_identity_info_ptr;
445 ;
0b0cfcf2 446
447 struct wccp2_security_md5_t *security_info;
448
449 struct wccp2_service_info_t *service_info;
450 char wccp_packet[WCCP_RESPONSE_SIZE];
451 size_t wccp_packet_size;
452
453 struct wccp2_service_list_t *next;
454 char wccp_password[WCCP2_PASSWORD_LEN + 1]; /* hold the trailing C-string NUL */
455 uint32_t wccp2_security_type;
456};
457
458static struct wccp2_service_list_t *wccp2_service_list_head = NULL;
459
460int empty_portlist[WCCP2_NUMPORTS] =
461 {0, 0, 0, 0, 0, 0, 0, 0};
462
463/* END WCCP V2 */
464void wccp2_add_service_list(int service, int service_id, int service_priority,
465 int service_proto, int service_flags, int ports[], int security_type, char *password);
466
467/*
468 * The functions used during startup:
469 * wccp2Init
470 * wccp2ConnectionOpen
471 * wccp2ConnectionClose
472 */
473
474static void
475wccp2InitServices(void)
476{
bf8fe701 477 debugs(80, 5, "wccp2InitServices: called");
0b0cfcf2 478}
479
480static void
481
482wccp2_update_service(struct wccp2_service_list_t *srv, int service,
483 int service_id, int service_priority, int service_proto, int service_flags,
484 int ports[])
485{
486 /* XXX check what needs to be wrapped in htons()! */
487 srv->info.service = service;
488 srv->info.service_id = service_id;
489 srv->info.service_priority = service_priority;
490 srv->info.service_protocol = service_proto;
491 srv->info.service_flags = htonl(service_flags);
492 srv->info.port0 = htons(ports[0]);
493 srv->info.port1 = htons(ports[1]);
494 srv->info.port2 = htons(ports[2]);
495 srv->info.port3 = htons(ports[3]);
496 srv->info.port4 = htons(ports[4]);
497 srv->info.port5 = htons(ports[5]);
498 srv->info.port6 = htons(ports[6]);
499 srv->info.port7 = htons(ports[7]);
500}
501
502void
503wccp2_add_service_list(int service, int service_id, int service_priority,
504 int service_proto, int service_flags, int ports[], int security_type,
505 char *password)
506{
507
508 struct wccp2_service_list_t *wccp2_service_list_ptr;
509
510 wccp2_service_list_ptr = (wccp2_service_list_t *) xcalloc(1, sizeof(struct wccp2_service_list_t));
511
bf8fe701 512 debugs(80, 5, "wccp2_add_service_list: added service id " << service_id);
0b0cfcf2 513
514 /* XXX check what needs to be wrapped in htons()! */
515 wccp2_service_list_ptr->info.service_type = htons(WCCP2_SERVICE_INFO);
516
517 wccp2_service_list_ptr->info.service_length = htons(sizeof(struct wccp2_service_info_t) - 4);
518 wccp2_service_list_ptr->change_num = 0;
519 wccp2_update_service(wccp2_service_list_ptr, service, service_id,
520 service_priority, service_proto, service_flags, ports);
521 wccp2_service_list_ptr->wccp2_security_type = security_type;
a302ad3c 522 memset(wccp2_service_list_ptr->wccp_password, 0, WCCP2_PASSWORD_LEN + 1);
0b0cfcf2 523 strncpy(wccp2_service_list_ptr->wccp_password, password, WCCP2_PASSWORD_LEN);
524 /* add to linked list - XXX this should use the Squid dlink* routines! */
525 wccp2_service_list_ptr->next = wccp2_service_list_head;
526 wccp2_service_list_head = wccp2_service_list_ptr;
527}
528
529static struct wccp2_service_list_t *
530 wccp2_get_service_by_id(int service, int service_id)
531{
532
533 struct wccp2_service_list_t *p;
534
535 p = wccp2_service_list_head;
536
537 while (p != NULL)
538 {
539 if (p->info.service == service && p->info.service_id == service_id) {
540 return p;
541 }
542
543 p = p->next;
544 }
545
546 return NULL;
547}
548
549/*
550 * Update the md5 security header, if possible
551 *
552 * Returns: 1 if we set it, 0 if not (eg, no security section, or non-md5)
553 */
554static char
555wccp2_update_md5_security(char *password, char *ptr, char *packet, int len)
556{
557 u_int8_t md5_digest[16];
558 char pwd[WCCP2_PASSWORD_LEN];
c3031d67 559 SquidMD5_CTX M;
0b0cfcf2 560
561 struct wccp2_security_md5_t *ws;
562
bf8fe701 563 debugs(80, 5, "wccp2_update_md5_security: called");
0b0cfcf2 564
565 /* The password field, for the MD5 hash, needs to be 8 bytes and NUL padded. */
a302ad3c 566 memset(pwd, 0, sizeof(pwd));
0b0cfcf2 567 strncpy(pwd, password, sizeof(pwd));
568
569 ws = (struct wccp2_security_md5_t *) ptr;
570 assert(ntohs(ws->security_type) == WCCP2_SECURITY_INFO);
571 /* Its the security part */
572
573 if (ntohl(ws->security_option) != WCCP2_MD5_SECURITY) {
bf8fe701 574 debugs(80, 5, "wccp2_update_md5_security: this service ain't md5'ing, abort");
0b0cfcf2 575 return 0;
576 }
577
578 /* And now its the MD5 section! */
579 /* According to the draft, the MD5 security hash is the combination of
580 * the 8-octet password (padded w/ NUL bytes) and the entire WCCP packet,
581 * including the WCCP message header. The WCCP security implementation
582 * area should be zero'ed before calculating the MD5 hash.
583 */
584 /* XXX eventually we should be able to kill md5_digest and blit it directly in */
a302ad3c 585 memset(ws->security_implementation, 0, sizeof(ws->security_implementation));
0b0cfcf2 586
c3031d67 587 SquidMD5Init(&M);
0b0cfcf2 588
c3031d67 589 SquidMD5Update(&M, pwd, 8);
0b0cfcf2 590
c3031d67 591 SquidMD5Update(&M, packet, len);
0b0cfcf2 592
c3031d67 593 SquidMD5Final(md5_digest, &M);
0b0cfcf2 594
595 memcpy(ws->security_implementation, md5_digest, sizeof(md5_digest));
596
597 /* Finished! */
598 return 1;
599}
600
601
602/*
603 * Check the given WCCP2 packet against the given password.
604 */
605static char
606
607wccp2_check_security(struct wccp2_service_list_t *srv, char *security, char *packet, int len)
608{
609
610 struct wccp2_security_md5_t *ws = (struct wccp2_security_md5_t *) security;
611 u_int8_t md5_digest[16], md5_challenge[16];
612 char pwd[WCCP2_PASSWORD_LEN];
c3031d67 613 SquidMD5_CTX M;
0b0cfcf2 614
615 /* Make sure the security type matches what we expect */
616
617 if (ntohl(ws->security_option) != srv->wccp2_security_type)
618 {
bf8fe701 619 debugs(80, 1, "wccp2_check_security: received packet has the wrong security option");
0b0cfcf2 620 return 0;
621 }
622
623 if (srv->wccp2_security_type == WCCP2_NO_SECURITY)
624 {
625 return 1;
626 }
627
628 if (srv->wccp2_security_type != WCCP2_MD5_SECURITY)
629 {
bf8fe701 630 debugs(80, 1, "wccp2_check_security: invalid security option");
0b0cfcf2 631 return 0;
632 }
633
634 /* If execution makes it here then we have an MD5 security */
635
636 /* The password field, for the MD5 hash, needs to be 8 bytes and NUL padded. */
a302ad3c 637 memset(pwd, 0, sizeof(pwd));
0b0cfcf2 638
639 strncpy(pwd, srv->wccp_password, sizeof(pwd));
640
641 /* Take a copy of the challenge: we need to NUL it before comparing */
642 memcpy(md5_challenge, ws->security_implementation, 16);
643
a302ad3c 644 memset(ws->security_implementation, 0, sizeof(ws->security_implementation));
0b0cfcf2 645
c3031d67 646 SquidMD5Init(&M);
0b0cfcf2 647
c3031d67 648 SquidMD5Update(&M, pwd, 8);
0b0cfcf2 649
c3031d67 650 SquidMD5Update(&M, packet, len);
0b0cfcf2 651
c3031d67 652 SquidMD5Final(md5_digest, &M);
0b0cfcf2 653
654 return (memcmp(md5_digest, md5_challenge, 16) == 0);
655}
656
657
658void
659wccp2Init(void)
660{
cc192b50 661 IPAddress_list *s;
0b0cfcf2 662 char *ptr;
b7d249f9 663 uint32_t service_flags;
0b0cfcf2 664
665 struct wccp2_service_list_t *service_list_ptr;
666
667 struct wccp2_router_list_t *router_list_ptr;
668
669 struct wccp2_security_md5_t wccp2_security_md5;
670
bf8fe701 671 debugs(80, 5, "wccp2Init: Called");
0b0cfcf2 672
673 if (wccp2_connected == 1)
674 return;
675
676 wccp2_numrouters = 0;
677
678 /* Calculate the number of routers configured in the config file */
679 for (s = Config.Wccp2.router; s; s = s->next) {
cc192b50 680 if (!s->s.IsAnyAddr()) {
0b0cfcf2 681 /* Increment the counter */
682 wccp2_numrouters++;
683 }
684 }
685
686 if (wccp2_numrouters == 0) {
687 return;
688 }
689
690 /* Initialise the list of services */
691 wccp2InitServices();
692
693 service_list_ptr = wccp2_service_list_head;
694
695 while (service_list_ptr != NULL) {
696 /* Set up our list pointers */
697 router_list_ptr = &service_list_ptr->router_list_head;
698
699 /* start the wccp header */
700 wccp2_here_i_am_header.type = htonl(WCCP2_HERE_I_AM);
701 wccp2_here_i_am_header.version = htons(WCCP2_VERSION);
702 wccp2_here_i_am_header.length = 0;
703 ptr = service_list_ptr->wccp_packet + sizeof(wccp2_here_i_am_header);
704
705 /* add the security section */
706 /* XXX this is ugly */
707
708 if (service_list_ptr->wccp2_security_type == WCCP2_MD5_SECURITY) {
709 wccp2_security_md5.security_option = htonl(WCCP2_MD5_SECURITY);
710
711 wccp2_security_md5.security_length = htons(sizeof(struct wccp2_security_md5_t) - 4);
712 } else if (service_list_ptr->wccp2_security_type == WCCP2_NO_SECURITY) {
713 wccp2_security_md5.security_option = htonl(WCCP2_NO_SECURITY);
714 /* XXX I hate magic length numbers! */
715 wccp2_security_md5.security_length = htons(4);
716 } else {
717 fatalf("Bad WCCP2 security type\n");
718 }
719
720 wccp2_here_i_am_header.length += ntohs(wccp2_security_md5.security_length) + 4;
721 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
722 wccp2_security_md5.security_type = htons(WCCP2_SECURITY_INFO);
723
724 service_list_ptr->security_info = (struct wccp2_security_md5_t *) ptr;
725
726 if (service_list_ptr->wccp2_security_type == WCCP2_MD5_SECURITY) {
727
728 xmemcpy(ptr, &wccp2_security_md5, sizeof(struct wccp2_security_md5_t));
729
730 ptr += sizeof(struct wccp2_security_md5_t);
731 } else {
732 /* assume NONE, and XXX I hate magic length numbers */
733 xmemcpy(ptr, &wccp2_security_md5, 8);
734 ptr += 8;
735 }
736
737 /* Add the service info section */
738
739 wccp2_here_i_am_header.length += sizeof(struct wccp2_service_info_t);
740
741 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
742
743 xmemcpy(ptr, &service_list_ptr->info, sizeof(struct wccp2_service_info_t));
744
745 service_list_ptr->service_info = (struct wccp2_service_info_t *) ptr;
746
747 ptr += sizeof(struct wccp2_service_info_t);
748
749 /* Add the cache identity section */
750
b7d249f9 751 switch (Config.Wccp2.assignment_method) {
0b0cfcf2 752
b7d249f9 753 case WCCP2_ASSIGNMENT_METHOD_HASH:
0b0cfcf2 754
b7d249f9 755 wccp2_here_i_am_header.length += sizeof(struct wccp2_identity_info_t);
756 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
757 wccp2_identity_info.cache_identity_type = htons(WCCP2_WC_ID_INFO);
758 wccp2_identity_info.cache_identity_length = htons(sizeof(wccp2_identity_info.cache_identity));
cc192b50 759 memset(&wccp2_identity_info.cache_identity.addr, '\0', sizeof(struct in_addr));
b7d249f9 760 memset(&wccp2_identity_info.cache_identity.hash_revision, '\0', sizeof(wccp2_identity_info.cache_identity.hash_revision));
761 memset(&wccp2_identity_info.cache_identity.bits, '\0', sizeof(wccp2_identity_info.cache_identity.bits));
762 memset(&wccp2_identity_info.cache_identity.buckets, '\0', sizeof(wccp2_identity_info.cache_identity.buckets));
763 wccp2_identity_info.cache_identity.weight = htons(Config.Wccp2.weight);
764 memset(&wccp2_identity_info.cache_identity.status, '\0', sizeof(wccp2_identity_info.cache_identity.status));
0b0cfcf2 765
b7d249f9 766 xmemcpy(ptr, &wccp2_identity_info, sizeof(struct wccp2_identity_info_t));
767 service_list_ptr->wccp2_identity_info_ptr = ptr;
0b0cfcf2 768
b7d249f9 769 ptr += sizeof(struct wccp2_identity_info_t);
770 break;
0b0cfcf2 771
b7d249f9 772 case WCCP2_ASSIGNMENT_METHOD_MASK:
773
774 wccp2_here_i_am_header.length += sizeof(struct wccp2_mask_identity_info_t);
775 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
776 wccp2_mask_identity_info.cache_identity_type = htons(WCCP2_WC_ID_INFO);
777 wccp2_mask_identity_info.cache_identity_length = htons(sizeof(wccp2_mask_identity_info.cache_identity));
cc192b50 778 memset(&wccp2_mask_identity_info.cache_identity.addr, '\0', sizeof(struct in_addr));
b7d249f9 779 wccp2_mask_identity_info.cache_identity.num1 = htonl(2);
780 wccp2_mask_identity_info.cache_identity.num2 = htonl(1);
781 service_flags = ntohl(service_list_ptr->service_info->service_flags);
782
783 if ((service_flags & WCCP2_SERVICE_SRC_IP_HASH) || (service_flags & WCCP2_SERVICE_SRC_IP_ALT_HASH)) {
784 wccp2_mask_identity_info.cache_identity.source_ip_mask = htonl(0x00001741);
785 wccp2_mask_identity_info.cache_identity.dest_ip_mask = 0;
786 wccp2_mask_identity_info.cache_identity.source_port_mask = 0;
787 wccp2_mask_identity_info.cache_identity.dest_port_mask = 0;
788 } else if ((service_list_ptr->info.service == WCCP2_SERVICE_STANDARD) || (service_flags & WCCP2_SERVICE_DST_IP_HASH) || (service_flags & WCCP2_SERVICE_DST_IP_ALT_HASH)) {
789 wccp2_mask_identity_info.cache_identity.source_ip_mask = 0;
790 wccp2_mask_identity_info.cache_identity.dest_ip_mask = htonl(0x00001741);
791 wccp2_mask_identity_info.cache_identity.source_port_mask = 0;
792 wccp2_mask_identity_info.cache_identity.dest_port_mask = 0;
793 } else if ((service_flags & WCCP2_SERVICE_SRC_PORT_HASH) || (service_flags & WCCP2_SERVICE_SRC_PORT_ALT_HASH)) {
794 wccp2_mask_identity_info.cache_identity.source_ip_mask = 0;
795 wccp2_mask_identity_info.cache_identity.dest_ip_mask = 0;
796 wccp2_mask_identity_info.cache_identity.source_port_mask = htons(0x1741);
797 wccp2_mask_identity_info.cache_identity.dest_port_mask = 0;
798 } else if ((service_flags & WCCP2_SERVICE_DST_PORT_HASH) || (service_flags & WCCP2_SERVICE_DST_PORT_ALT_HASH)) {
799 wccp2_mask_identity_info.cache_identity.source_ip_mask = 0;
800 wccp2_mask_identity_info.cache_identity.dest_ip_mask = 0;
801 wccp2_mask_identity_info.cache_identity.source_port_mask = 0;
802 wccp2_mask_identity_info.cache_identity.dest_port_mask = htons(0x1741);
803 } else {
804 fatalf("Unknown service hash method\n");
805 }
0b0cfcf2 806
b7d249f9 807 wccp2_mask_identity_info.cache_identity.num3 = 0;
808 wccp2_mask_identity_info.cache_identity.num4 = 0;
0b0cfcf2 809
b7d249f9 810 xmemcpy(ptr, &wccp2_mask_identity_info, sizeof(struct wccp2_mask_identity_info_t));
811 service_list_ptr->wccp2_identity_info_ptr = ptr;
0b0cfcf2 812
b7d249f9 813 ptr += sizeof(struct wccp2_mask_identity_info_t);
814 break;
0b0cfcf2 815
b7d249f9 816 default:
817 fatalf("Unknown Wccp2 assignment method\n");
818 }
0b0cfcf2 819
820 /* Add the cache view section */
821 wccp2_here_i_am_header.length += sizeof(wccp2_cache_view_header);
822
823 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
824
825 wccp2_cache_view_header.cache_view_type = htons(WCCP2_WC_VIEW_INFO);
826
827 wccp2_cache_view_header.cache_view_length = htons(sizeof(wccp2_cache_view_header) - 4 +
828 sizeof(wccp2_cache_view_info) + (wccp2_numrouters * sizeof(wccp2_router_id_element)));
829
830 wccp2_cache_view_header.cache_view_version = htonl(1);
831
832 xmemcpy(ptr, &wccp2_cache_view_header, sizeof(wccp2_cache_view_header));
833
834 ptr += sizeof(wccp2_cache_view_header);
835
836 /* Add the number of routers to the packet */
837 wccp2_here_i_am_header.length += sizeof(service_list_ptr->num_routers);
838
839 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
840
841 service_list_ptr->num_routers = htonl(wccp2_numrouters);
842
843 xmemcpy(ptr, &service_list_ptr->num_routers, sizeof(service_list_ptr->num_routers));
844
845 ptr += sizeof(service_list_ptr->num_routers);
846
847 /* Add each router. Keep this functionality here to make sure the received_id can be updated in the packet */
848 for (s = Config.Wccp2.router; s; s = s->next) {
cc192b50 849 if (!s->s.IsAnyAddr()) {
0b0cfcf2 850
851 wccp2_here_i_am_header.length += sizeof(struct wccp2_router_id_element_t);
852 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
853
854 /* Add a pointer to the router list for this router */
855
856 router_list_ptr->info = (struct wccp2_router_id_element_t *) ptr;
cc192b50 857 s->s.GetInAddr(router_list_ptr->info->router_address);
0b0cfcf2 858 router_list_ptr->info->received_id = htonl(0);
cc192b50 859 s->s.GetInAddr(router_list_ptr->router_sendto_address);
0b0cfcf2 860 router_list_ptr->member_change = htonl(0);
861
862 /* Build the next struct */
863
864 router_list_ptr->next = (wccp2_router_list_t*) xcalloc(1, sizeof(struct wccp2_router_list_t));
865
866 /* update the pointer */
867 router_list_ptr = router_list_ptr->next;
868 router_list_ptr->next = NULL;
869
870 /* no need to copy memory - we've just set the values directly in the packet above */
871
872 ptr += sizeof(struct wccp2_router_id_element_t);
873 }
874 }
875
876 /* Add the number of caches (0) */
877 wccp2_here_i_am_header.length += sizeof(wccp2_cache_view_info.num_caches);
878
879 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
880
881 wccp2_cache_view_info.num_caches = htonl(0);
882
883 xmemcpy(ptr, &wccp2_cache_view_info.num_caches, sizeof(wccp2_cache_view_info.num_caches));
884
885 ptr += sizeof(wccp2_cache_view_info.num_caches);
886
887 /* Add the extra capability header */
888 wccp2_here_i_am_header.length += sizeof(wccp2_capability_info_header);
889
890 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
891
892 wccp2_capability_info_header.capability_info_type = htons(WCCP2_CAPABILITY_INFO);
893
c1f55201 894 wccp2_capability_info_header.capability_info_length = htons(3 * sizeof(wccp2_capability_element));
0b0cfcf2 895
896 xmemcpy(ptr, &wccp2_capability_info_header, sizeof(wccp2_capability_info_header));
897
898 ptr += sizeof(wccp2_capability_info_header);
899
900 /* Add the forwarding method */
901 wccp2_here_i_am_header.length += sizeof(wccp2_capability_element);
902
903 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
904
905 wccp2_capability_element.capability_type = htons(WCCP2_CAPABILITY_FORWARDING_METHOD);
906
907 wccp2_capability_element.capability_length = htons(sizeof(wccp2_capability_element.capability_value));
908
909 wccp2_capability_element.capability_value = htonl(Config.Wccp2.forwarding_method);
910
911 xmemcpy(ptr, &wccp2_capability_element, sizeof(wccp2_capability_element));
912
913 ptr += sizeof(wccp2_capability_element);
914
c1f55201 915 /* Add the assignment method */
916 wccp2_here_i_am_header.length += sizeof(wccp2_capability_element);
917
918 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
919
920 wccp2_capability_element.capability_type = htons(WCCP2_CAPABILITY_ASSIGNMENT_METHOD);
921
922 wccp2_capability_element.capability_length = htons(sizeof(wccp2_capability_element.capability_value));
923
b7d249f9 924 wccp2_capability_element.capability_value = htonl(Config.Wccp2.assignment_method);
c1f55201 925
926 xmemcpy(ptr, &wccp2_capability_element, sizeof(wccp2_capability_element));
927
928 ptr += sizeof(wccp2_capability_element);
929
0b0cfcf2 930 /* Add the return method */
931 wccp2_here_i_am_header.length += sizeof(wccp2_capability_element);
932
933 assert(wccp2_here_i_am_header.length <= WCCP_RESPONSE_SIZE);
934
935 wccp2_capability_element.capability_type = htons(WCCP2_CAPABILITY_RETURN_METHOD);
936
937 wccp2_capability_element.capability_length = htons(sizeof(wccp2_capability_element.capability_value));
938
939 wccp2_capability_element.capability_value = htonl(Config.Wccp2.return_method);
940
941 xmemcpy(ptr, &wccp2_capability_element, sizeof(wccp2_capability_element));
942
943 ptr += sizeof(wccp2_capability_element);
944
945 /* Finally, fix the total length to network order, and copy to the appropriate memory blob */
946 wccp2_here_i_am_header.length = htons(wccp2_here_i_am_header.length);
947
948 memcpy(&service_list_ptr->wccp_packet, &wccp2_here_i_am_header, sizeof(wccp2_here_i_am_header));
949
950 service_list_ptr->wccp_packet_size = ntohs(wccp2_here_i_am_header.length) + sizeof(wccp2_here_i_am_header);
951
952 /* Add the event if everything initialised correctly */
953 if (wccp2_numrouters) {
954 if (!eventFind(wccp2HereIam, NULL)) {
955 eventAdd("wccp2HereIam", wccp2HereIam, NULL, 1, 1);
956 }
957 }
958
959 service_list_ptr = service_list_ptr->next;
960 }
961}
962
963void
964wccp2ConnectionOpen(void)
965{
c1f55201 966 struct sockaddr_in router, local, null;
0b0cfcf2 967 socklen_t local_len, router_len;
968
969 struct wccp2_service_list_t *service_list_ptr;
970
971 struct wccp2_router_list_t *router_list_ptr;
972
bf8fe701 973 debugs(80, 5, "wccp2ConnectionOpen: Called");
0b0cfcf2 974
975 if (wccp2_numrouters == 0 || !wccp2_service_list_head) {
bf8fe701 976 debugs(80, 2, "WCCPv2 Disabled.");
0b0cfcf2 977 return;
978 }
979
cc192b50 980 if( !Config.Wccp2.address.SetIPv4() ) {
981 debugs(80, 0, "WCCPv2 Disabled. " << Config.Wccp2.address << " is not an IPv4 address.");
982 return;
983 }
984
985 Config.Wccp2.address.SetPort(WCCP_PORT);
0b0cfcf2 986 theWccp2Connection = comm_open(SOCK_DGRAM,
987 0,
988 Config.Wccp2.address,
0b0cfcf2 989 COMM_NONBLOCKING,
990 "WCCPv2 Socket");
991
992 if (theWccp2Connection < 0)
993 fatal("Cannot open WCCP Port");
994
85d25b95 995#if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT)
996 {
997 int i = IP_PMTUDISC_DONT;
998 setsockopt(theWccp2Connection, SOL_IP, IP_MTU_DISCOVER, &i, sizeof i);
999 }
1000
1001#endif
0b0cfcf2 1002 commSetSelect(theWccp2Connection,
1003 COMM_SELECT_READ,
1004 wccp2HandleUdp,
1005 NULL,
1006 0);
1007
cc192b50 1008 debugs(80, 1, "Accepting WCCPv2 messages on port " << WCCP_PORT << ", FD " << theWccp2Connection << ".");
bf8fe701 1009 debugs(80, 1, "Initialising all WCCPv2 lists");
0b0cfcf2 1010
1011 /* Initialise all routers on all services */
c1f55201 1012 memset(&null, 0, sizeof(null));
1013
1014 null.sin_family = AF_UNSPEC;
1015
0b0cfcf2 1016 service_list_ptr = wccp2_service_list_head;
1017
1018 while (service_list_ptr != NULL) {
1019 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr->next != NULL; router_list_ptr = router_list_ptr->next) {
1020 router_len = sizeof(router);
1021 memset(&router, '\0', router_len);
1022 router.sin_family = AF_INET;
cc192b50 1023 router.sin_port = htons(WCCP_PORT);
0b0cfcf2 1024 router.sin_addr = router_list_ptr->router_sendto_address;
1025
1026 if (connect(theWccp2Connection, (struct sockaddr *) &router, router_len))
1027 fatal("Unable to connect WCCP out socket");
1028
1029 local_len = sizeof(local);
1030
1031 memset(&local, '\0', local_len);
1032
1033 if (getsockname(theWccp2Connection, (struct sockaddr *) &local, &local_len))
1034 fatal("Unable to getsockname on WCCP out socket");
1035
1036 router_list_ptr->local_ip = local.sin_addr;
1037
c1f55201 1038 /* Disconnect the sending socket. Note: FreeBSD returns error
1039 * but disconnects anyway so we have to just assume it worked
1040 */
1041 if (wccp2_numrouters > 1)
c1f55201 1042 connect(theWccp2Connection, (struct sockaddr *) &null, router_len);
0b0cfcf2 1043 }
1044
1045 service_list_ptr = service_list_ptr->next;
1046 }
1047
0b0cfcf2 1048 wccp2_connected = 1;
1049}
1050
1051void
1052wccp2ConnectionClose(void)
1053{
1054
1055 struct wccp2_service_list_t *service_list_ptr;
1056
1057 struct wccp2_service_list_t *service_list_ptr_next;
1058
1059 struct wccp2_router_list_t *router_list_ptr;
1060
1061 struct wccp2_router_list_t *router_list_next;
1062
1063 struct wccp2_cache_list_t *cache_list_ptr;
1064
1065 struct wccp2_cache_list_t *cache_list_ptr_next;
1066
1067 if (wccp2_connected == 0) {
1068 return;
1069 }
1070
1071 if (theWccp2Connection > -1) {
76dc4ca3 1072 debugs(80, 1, "FD " << theWccp2Connection << " Closing WCCPv2 socket");
0b0cfcf2 1073 comm_close(theWccp2Connection);
1074 theWccp2Connection = -1;
1075 }
1076
1077 /* for each router on each service send a packet */
1078 service_list_ptr = wccp2_service_list_head;
1079
1080 while (service_list_ptr != NULL) {
1081 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr != NULL; router_list_ptr = router_list_next) {
1082 for (cache_list_ptr = &router_list_ptr->cache_list_head; cache_list_ptr; cache_list_ptr = cache_list_ptr_next) {
1083 cache_list_ptr_next = cache_list_ptr->next;
1084
1085 if (cache_list_ptr != &router_list_ptr->cache_list_head) {
1086 xfree(cache_list_ptr);
1087 } else {
1088
1089 memset(cache_list_ptr, '\0', sizeof(struct wccp2_cache_list_t));
1090 }
1091 }
1092
1093 router_list_next = router_list_ptr->next;
1094
1095 if (router_list_ptr != &service_list_ptr->router_list_head) {
1096 xfree(router_list_ptr);
1097 } else {
1098
1099 memset(router_list_ptr, '\0', sizeof(struct wccp2_router_list_t));
1100 }
1101 }
1102
1103 service_list_ptr_next = service_list_ptr->next;
1104 xfree(service_list_ptr);
1105 service_list_ptr = service_list_ptr_next;
1106 }
1107
1108 wccp2_service_list_head = NULL;
1109 eventDelete(wccp2HereIam, NULL);
1110 eventDelete(wccp2AssignBuckets, NULL);
1111 eventDelete(wccp2HereIam, NULL);
1112 wccp2_connected = 0;
1113}
1114
1115/*
1116 * Functions for handling the requests.
1117 */
1118
1119/*
1120 * Accept the UDP packet
1121 */
1122static void
1123wccp2HandleUdp(int sock, void *not_used)
1124{
1125
1126 struct wccp2_service_list_t *service_list_ptr;
1127
1128 struct wccp2_router_list_t *router_list_ptr;
1129
1130 struct wccp2_cache_list_t *cache_list_ptr;
1131
1132 struct wccp2_cache_list_t *cache_list_ptr_next;
1133
1134 /* These structs form the parts of the packet */
1135
1136 struct wccp2_item_header_t *header = NULL;
1137
1138 struct wccp2_security_none_t *security_info = NULL;
1139
1140 struct wccp2_service_info_t *service_info = NULL;
1141
1142 struct router_identity_info_t *router_identity_info = NULL;
1143
1144 struct router_view_t *router_view_header = NULL;
1145
b7d249f9 1146 struct wccp2_cache_mask_identity_info_t *cache_mask_identity = NULL;
1147
1148 struct cache_mask_info_t *cache_mask_info = NULL;
1149
0b0cfcf2 1150 struct wccp2_cache_identity_info_t *cache_identity = NULL;
1151
1152 struct wccp2_capability_info_header_t *router_capability_header = NULL;
1153
1154 struct wccp2_capability_element_t *router_capability_element;
1155
1156 struct sockaddr_in from;
1157
2adffc6f 1158 struct in_addr cache_address;
0b0cfcf2 1159 int len, found;
1160 short int data_length, offset;
1161 uint32_t tmp;
1162 char *ptr;
1163 int num_caches;
0b0cfcf2 1164
bf8fe701 1165 debugs(80, 6, "wccp2HandleUdp: Called.");
0b0cfcf2 1166
1167 commSetSelect(sock, COMM_SELECT_READ, wccp2HandleUdp, NULL, 0);
1168
cc192b50 1169/* FIXME INET6 : drop conversion boundary */ IPAddress from_tmp;
0b0cfcf2 1170
1171 len = comm_udp_recvfrom(sock,
1172 &wccp2_i_see_you,
1173 WCCP_RESPONSE_SIZE,
1174 0,
cc192b50 1175 from_tmp);
1176/* FIXME INET6 : drop conversion boundary */ from_tmp.GetSockAddr(from);
0b0cfcf2 1177
1178 if (len < 0)
1179 return;
1180
1181 if (ntohs(wccp2_i_see_you.version) != WCCP2_VERSION)
1182 return;
1183
1184 if (ntohl(wccp2_i_see_you.type) != WCCP2_I_SEE_YOU)
1185 return;
1186
bf8fe701 1187 debugs(80, 3, "Incoming WCCPv2 I_SEE_YOU length " << ntohs(wccp2_i_see_you.length) << ".");
0b0cfcf2 1188
1189 /* Record the total data length */
1190 data_length = ntohs(wccp2_i_see_you.length);
1191
1192 offset = 0;
1193
1194 if (data_length > len) {
bf8fe701 1195 debugs(80, 1, "ERROR: Malformed WCCPv2 packet claiming it's bigger than received data");
0b0cfcf2 1196 return;
1197 }
1198
1199 /* Go through the data structure */
1200 while (data_length > offset) {
1201
1202 header = (struct wccp2_item_header_t *) &wccp2_i_see_you.data[offset];
1203
1204 switch (ntohs(header->type)) {
1205
1206 case WCCP2_SECURITY_INFO:
1207
1208 if (security_info != NULL) {
bf8fe701 1209 debugs(80, 1, "Duplicate security definition");
0b0cfcf2 1210 return;
1211 }
1212
1213 security_info = (struct wccp2_security_none_t *) &wccp2_i_see_you.data[offset];
1214 break;
1215
1216 case WCCP2_SERVICE_INFO:
1217
1218 if (service_info != NULL) {
bf8fe701 1219 debugs(80, 1, "Duplicate service_info definition");
0b0cfcf2 1220 return;
1221 }
1222
1223 service_info = (struct wccp2_service_info_t *) &wccp2_i_see_you.data[offset];
1224 break;
1225
1226 case WCCP2_ROUTER_ID_INFO:
1227
1228 if (router_identity_info != NULL) {
bf8fe701 1229 debugs(80, 1, "Duplicate router_identity_info definition");
0b0cfcf2 1230 return;
1231 }
1232
1233 router_identity_info = (struct router_identity_info_t *) &wccp2_i_see_you.data[offset];
1234 break;
1235
1236 case WCCP2_RTR_VIEW_INFO:
1237
1238 if (router_view_header != NULL) {
bf8fe701 1239 debugs(80, 1, "Duplicate router_view definition");
0b0cfcf2 1240 return;
1241 }
1242
1243 router_view_header = (struct router_view_t *) &wccp2_i_see_you.data[offset];
1244 break;
1245
1246 case WCCP2_CAPABILITY_INFO:
1247
1248 if (router_capability_header != NULL) {
bf8fe701 1249 debugs(80, 1, "Duplicate router_capability definition");
0b0cfcf2 1250 return;
1251 }
1252
1253 router_capability_header = (struct wccp2_capability_info_header_t *) &wccp2_i_see_you.data[offset];
c1f55201 1254 break;
0b0cfcf2 1255
b7d249f9 1256 /* Nothing to do for the types below */
1257
1258 case WCCP2_ASSIGN_MAP:
1259 break;
1260
0b0cfcf2 1261 default:
bf8fe701 1262 debugs(80, 1, "Unknown record type in WCCPv2 Packet (" << ntohs(header->type) << ").");
0b0cfcf2 1263 }
1264
1265 offset += sizeof(struct wccp2_item_header_t);
1266 offset += ntohs(header->length);
1267
1268 if (offset > data_length) {
bf8fe701 1269 debugs(80, 1, "Error: WCCPv2 packet tried to tell us there is data beyond the end of the packet");
0b0cfcf2 1270 return;
1271 }
1272 }
1273
1274 if ((security_info == NULL) || (service_info == NULL) || (router_identity_info == NULL) || (router_view_header == NULL)) {
bf8fe701 1275 debugs(80, 1, "Incomplete WCCPv2 Packet");
0b0cfcf2 1276 return;
1277 }
1278
bf8fe701 1279 debugs(80, 5, "Complete packet received");
0b0cfcf2 1280
1281 /* Check that the service in the packet is configured on this router */
1282 service_list_ptr = wccp2_service_list_head;
1283
1284 while (service_list_ptr != NULL) {
1285 if (service_info->service_id == service_list_ptr->service_info->service_id) {
1286 break;
1287 }
1288
1289 service_list_ptr = service_list_ptr->next;
1290 }
1291
1292 if (service_list_ptr == NULL) {
bf8fe701 1293 debugs(80, 1, "WCCPv2 Unknown service received from router (" << service_info->service_id << ")");
0b0cfcf2 1294 return;
1295 }
1296
1297 if (ntohl(security_info->security_option) != ntohl(service_list_ptr->security_info->security_option)) {
6013702c 1298 debugs(80, 1, "Invalid security option in WCCPv2 Packet (" << ntohl(security_info->security_option) << " vs " << ntohl(service_list_ptr->security_info->security_option) << ").");
0b0cfcf2 1299 return;
1300 }
1301
1302 if (!wccp2_check_security(service_list_ptr, (char *) security_info, (char *) &wccp2_i_see_you, len)) {
bf8fe701 1303 debugs(80, 1, "Received WCCPv2 Packet failed authentication");
0b0cfcf2 1304 return;
1305 }
1306
1307 /* Check that the router address is configured on this router */
1308 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr->next != NULL; router_list_ptr = router_list_ptr->next) {
1309 if (router_list_ptr->router_sendto_address.s_addr == from.sin_addr.s_addr)
1310 break;
1311 }
1312
1313 if (router_list_ptr->next == NULL) {
bf8fe701 1314 debugs(80, 1, "WCCPv2 Packet received from unknown router");
0b0cfcf2 1315 return;
1316 }
1317
1318 /* Set the router id */
1319 router_list_ptr->info->router_address = router_identity_info->router_id_element.router_address;
1320
1321 /* Increment the received id in the packet */
1322 if (ntohl(router_list_ptr->info->received_id) != ntohl(router_identity_info->router_id_element.received_id)) {
6013702c 1323 debugs(80, 3, "Incoming WCCP2_I_SEE_YOU Received ID old=" << ntohl(router_list_ptr->info->received_id) << " new=" << ntohl(router_identity_info->router_id_element.received_id) << ".");
0b0cfcf2 1324 router_list_ptr->info->received_id = router_identity_info->router_id_element.received_id;
1325 }
1326
1327 /* TODO: check return/forwarding methods */
1328 if (router_capability_header == NULL) {
c1f55201 1329 if ((Config.Wccp2.return_method != WCCP2_PACKET_RETURN_METHOD_GRE) || (Config.Wccp2.forwarding_method != WCCP2_FORWARDING_METHOD_GRE)) {
bf8fe701 1330 debugs(80, 1, "wccp2HandleUdp: fatal error - A WCCP router does not support the forwarding method specified, only GRE supported");
0b0cfcf2 1331 wccp2ConnectionClose();
1332 return;
1333 }
1334 } else {
0b0cfcf2 1335
c1f55201 1336 char *end = ((char *) router_capability_header) + sizeof(*router_capability_header) + ntohs(router_capability_header->capability_info_length) - sizeof(struct wccp2_capability_info_header_t);
1337
1338 router_capability_element = (struct wccp2_capability_element_t *) (((char *) router_capability_header) + sizeof(*router_capability_header));
0b0cfcf2 1339
c1f55201 1340 while ((char *) router_capability_element <= end) {
0b0cfcf2 1341
1342 switch (ntohs(router_capability_element->capability_type)) {
1343
1344 case WCCP2_CAPABILITY_FORWARDING_METHOD:
1345
c1f55201 1346 if (!(ntohl(router_capability_element->capability_value) & Config.Wccp2.forwarding_method)) {
6013702c 1347 debugs(80, 1, "wccp2HandleUdp: fatal error - A WCCP router has specified a different forwarding method " << ntohl(router_capability_element->capability_value) << ", expected " << Config.Wccp2.forwarding_method);
0b0cfcf2 1348 wccp2ConnectionClose();
1349 return;
1350 }
1351
1352 break;
1353
1354 case WCCP2_CAPABILITY_ASSIGNMENT_METHOD:
c1f55201 1355
b7d249f9 1356 if (!(ntohl(router_capability_element->capability_value) & Config.Wccp2.assignment_method)) {
1357 debugs(80, 1, "wccp2HandleUdp: fatal error - A WCCP router has specified a different assignment method " << ntohl(router_capability_element->capability_value) << ", expected "<< Config.Wccp2.assignment_method);
c1f55201 1358 wccp2ConnectionClose();
1359 return;
1360 }
1361
0b0cfcf2 1362 break;
1363
1364 case WCCP2_CAPABILITY_RETURN_METHOD:
1365
c1f55201 1366 if (!(ntohl(router_capability_element->capability_value) & Config.Wccp2.return_method)) {
6013702c 1367 debugs(80, 1, "wccp2HandleUdp: fatal error - A WCCP router has specified a different return method " << ntohl(router_capability_element->capability_value) << ", expected " << Config.Wccp2.return_method);
0b0cfcf2 1368 wccp2ConnectionClose();
1369 return;
1370 }
1371
1372 break;
1373
1374 default:
bf8fe701 1375 debugs(80, 1, "Unknown capability type in WCCPv2 Packet (" << ntohs(router_capability_element->capability_type) << ").");
0b0cfcf2 1376 }
c1f55201 1377
1378 router_capability_element = (struct wccp2_capability_element_t *) (((char *) router_capability_element) + sizeof(struct wccp2_capability_element_header_t) + ntohs(router_capability_element->capability_length));
0b0cfcf2 1379 }
1380 }
1381
bf8fe701 1382 debugs(80, 5, "Cleaning out cache list");
0b0cfcf2 1383 /* clean out the old cache list */
1384
1385 for (cache_list_ptr = &router_list_ptr->cache_list_head; cache_list_ptr; cache_list_ptr = cache_list_ptr_next) {
1386 cache_list_ptr_next = cache_list_ptr->next;
1387
1388 if (cache_list_ptr != &router_list_ptr->cache_list_head) {
1389 xfree(cache_list_ptr);
1390 }
1391 }
1392
1393 router_list_ptr->num_caches = htonl(0);
1394 num_caches = 0;
1395
1396 /* Check to see if we're the master cache and update the cache list */
1397 found = 0;
1398 service_list_ptr->lowest_ip = 1;
1399 cache_list_ptr = &router_list_ptr->cache_list_head;
1400
1401 /* to find the list of caches, we start at the end of the router view header */
1402
1403 ptr = (char *) (router_view_header) + sizeof(struct router_view_t);
1404
1405 /* Then we read the number of routers */
1406 memcpy(&tmp, ptr, sizeof(tmp));
1407
1408 /* skip the number plus all the ip's */
1409
2adffc6f 1410 ptr += sizeof(tmp) + (ntohl(tmp) * sizeof(struct in_addr));
0b0cfcf2 1411
1412 /* Then read the number of caches */
1413 memcpy(&tmp, ptr, sizeof(tmp));
1414 ptr += sizeof(tmp);
1415
1416 if (ntohl(tmp) != 0) {
1417 /* search through the list of received-from ip addresses */
1418
1419 for (num_caches = 0; num_caches < (int) ntohl(tmp); num_caches++) {
1420 /* Get a copy of the ip */
1421
b7d249f9 1422 switch (Config.Wccp2.assignment_method) {
1423
1424 case WCCP2_ASSIGNMENT_METHOD_HASH:
1425
1426 cache_identity = (struct wccp2_cache_identity_info_t *) ptr;
1427
1428 ptr += sizeof(struct wccp2_cache_identity_info_t);
1429
2adffc6f 1430 memcpy(&cache_address, &cache_identity->addr, sizeof(struct in_addr));
b7d249f9 1431
1432 cache_list_ptr->weight = ntohs(cache_identity->weight);
1433 break;
1434
1435 case WCCP2_ASSIGNMENT_METHOD_MASK:
1436
1437 cache_mask_info = (struct cache_mask_info_t *) ptr;
1438
1439 /* The mask assignment has an undocumented variable length entry here */
1440
1441 if (ntohl(cache_mask_info->num1) == 3) {
1442
1443 cache_mask_identity = (struct wccp2_cache_mask_identity_info_t *) ptr;
1444
1445 ptr += sizeof(struct wccp2_cache_mask_identity_info_t);
0b0cfcf2 1446
2adffc6f 1447 memcpy(&cache_address, &cache_mask_identity->addr, sizeof(struct in_addr));
b7d249f9 1448 } else {
1449
1450 ptr += sizeof(struct cache_mask_info_t);
1451
2adffc6f 1452 memcpy(&cache_address, &cache_mask_info->addr, sizeof(struct in_addr));
b7d249f9 1453 }
0b0cfcf2 1454
b7d249f9 1455 cache_list_ptr->weight = 0;
1456 break;
1457
1458 default:
1459 fatalf("Unknown Wccp2 assignment method\n");
1460 }
0b0cfcf2 1461
1462 /* Update the cache list */
1463 cache_list_ptr->cache_ip = cache_address;
b7d249f9 1464
0b0cfcf2 1465 cache_list_ptr->next = (wccp2_cache_list_t*) xcalloc(1, sizeof(struct wccp2_cache_list_t));
b7d249f9 1466
0b0cfcf2 1467 cache_list_ptr = cache_list_ptr->next;
b7d249f9 1468
0b0cfcf2 1469 cache_list_ptr->next = NULL;
1470
bf8fe701 1471 debugs (80, 5, "checking cache list: (" << std::hex << cache_address.s_addr << ":" << router_list_ptr->local_ip.s_addr << ")");
b7d249f9 1472
0b0cfcf2 1473 /* Check to see if it's the master, or us */
1474
1475 if (cache_address.s_addr == router_list_ptr->local_ip.s_addr) {
1476 found = 1;
1477 }
1478
1479 if (cache_address.s_addr < router_list_ptr->local_ip.s_addr) {
1480 service_list_ptr->lowest_ip = 0;
1481 }
1482 }
1483 } else {
bf8fe701 1484 debugs(80, 5, "Adding ourselves as the only cache");
0b0cfcf2 1485
1486 /* Update the cache list */
1487 cache_list_ptr->cache_ip = router_list_ptr->local_ip;
1488
1489 cache_list_ptr->next = (wccp2_cache_list_t*) xcalloc(1, sizeof(struct wccp2_cache_list_t));
1490 cache_list_ptr = cache_list_ptr->next;
1491 cache_list_ptr->next = NULL;
1492
b7d249f9 1493 service_list_ptr->lowest_ip = 1;
0b0cfcf2 1494 found = 1;
1495 num_caches = 1;
1496 }
1497
1498 router_list_ptr->num_caches = htonl(num_caches);
1499
1500 if ((found == 1) && (service_list_ptr->lowest_ip == 1)) {
1501 if (ntohl(router_view_header->change_number) != router_list_ptr->member_change) {
bf8fe701 1502 debugs(80, 4, "Change detected - queueing up new assignment");
0b0cfcf2 1503 router_list_ptr->member_change = ntohl(router_view_header->change_number);
c1f55201 1504 eventDelete(wccp2AssignBuckets, NULL);
1505 eventAdd("wccp2AssignBuckets", wccp2AssignBuckets, NULL, 15.0, 1);
b7d249f9 1506 } else {
4a7a3d56 1507 debugs(80, 5, "Change not detected (" << ntohl(router_view_header->change_number) << " = " << router_list_ptr->member_change << ")");
0b0cfcf2 1508 }
1509 } else {
b7d249f9 1510 eventDelete(wccp2AssignBuckets, NULL);
bf8fe701 1511 debugs(80, 5, "I am not the lowest ip cache - not assigning buckets");
0b0cfcf2 1512 }
1513}
1514
1515static void
1516wccp2HereIam(void *voidnotused)
1517{
1518
1519 struct wccp2_service_list_t *service_list_ptr;
1520
1521 struct wccp2_router_list_t *router_list_ptr;
1522
b7d249f9 1523 struct wccp2_identity_info_t *wccp2_identity_info_ptr;
1524
1525 struct wccp2_mask_identity_info_t *wccp2_mask_identity_info_ptr;
1526
cc192b50 1527 IPAddress router;
0b0cfcf2 1528
bf8fe701 1529 debugs(80, 6, "wccp2HereIam: Called");
0b0cfcf2 1530
1531 if (wccp2_connected == 0) {
bf8fe701 1532 debugs(80, 1, "wccp2HereIam: wccp2 socket closed. Shutting down WCCP2");
0b0cfcf2 1533 return;
1534 }
1535
bef81ea5 1536 /* Wait if store dirs are rebuilding */
1537 if (StoreController::store_dirs_rebuilding && Config.Wccp2.rebuildwait) {
f67332d3 1538 eventAdd("wccp2HereIam", wccp2HereIam, NULL, 1.0, 1);
1539 return;
1540 }
1541
cc192b50 1542 router.SetPort(WCCP_PORT);
0b0cfcf2 1543
1544 /* for each router on each service send a packet */
1545 service_list_ptr = wccp2_service_list_head;
1546
1547 while (service_list_ptr != NULL) {
bf8fe701 1548 debugs(80, 5, "wccp2HereIam: sending to service id " << service_list_ptr->info.service_id);
0b0cfcf2 1549
1550 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr->next != NULL; router_list_ptr = router_list_ptr->next) {
cc192b50 1551 router = router_list_ptr->router_sendto_address;
0b0cfcf2 1552
1553 /* Set the cache id (ip) */
b7d249f9 1554
1555 switch (Config.Wccp2.assignment_method) {
1556
1557 case WCCP2_ASSIGNMENT_METHOD_HASH:
1558
1559 wccp2_identity_info_ptr = (struct wccp2_identity_info_t *) service_list_ptr->wccp2_identity_info_ptr;
1560 wccp2_identity_info_ptr->cache_identity.addr = router_list_ptr->local_ip;
1561 break;
1562
1563 case WCCP2_ASSIGNMENT_METHOD_MASK:
1564
1565 wccp2_mask_identity_info_ptr = (struct wccp2_mask_identity_info_t *) service_list_ptr->wccp2_identity_info_ptr;
1566 wccp2_mask_identity_info_ptr->cache_identity.addr = router_list_ptr->local_ip;
1567 break;
1568
1569 default:
1570 fatalf("Unknown Wccp2 assignment method\n");
1571 }
1572
0b0cfcf2 1573 /* Security update, if needed */
1574
1575 if (service_list_ptr->wccp2_security_type == WCCP2_MD5_SECURITY) {
1576 wccp2_update_md5_security(service_list_ptr->wccp_password, (char *) service_list_ptr->security_info, service_list_ptr->wccp_packet, service_list_ptr->wccp_packet_size);
1577 }
1578
4a7a3d56 1579 debugs(80, 3, "Sending HereIam packet size " << service_list_ptr->wccp_packet_size);
0b0cfcf2 1580 /* Send the packet */
0b0cfcf2 1581
c1f55201 1582 if (wccp2_numrouters > 1) {
1583 comm_udp_sendto(theWccp2Connection,
cc192b50 1584 router,
c1f55201 1585 &service_list_ptr->wccp_packet,
1586 service_list_ptr->wccp_packet_size);
1587 } else {
1588 send(theWccp2Connection,
1589 &service_list_ptr->wccp_packet,
1590 service_list_ptr->wccp_packet_size,
1591 0);
1592 }
0b0cfcf2 1593 }
1594
1595 service_list_ptr = service_list_ptr->next;
1596 }
1597
f67332d3 1598 eventAdd("wccp2HereIam", wccp2HereIam, NULL, 10.0, 1);
0b0cfcf2 1599}
1600
1601static void
1602wccp2AssignBuckets(void *voidnotused)
1603{
1604
1605 struct wccp2_service_list_t *service_list_ptr;
1606
1607 struct wccp2_router_list_t *router_list_ptr;
1608
1609 struct wccp2_cache_list_t *cache_list_ptr;
1610 char wccp_packet[WCCP_RESPONSE_SIZE];
b7d249f9 1611 short int offset, saved_offset, assignment_offset, alt_assignment_offset;
0b0cfcf2 1612
1613 struct sockaddr_in router;
1614 int router_len;
1615 int bucket_counter;
b7d249f9 1616 uint32_t service_flags;
0b0cfcf2 1617 u_short port = WCCP_PORT;
1618
1619 /* Packet segments */
1620
1621 struct wccp2_here_i_am_header_t *main_header;
1622
1623 struct wccp2_security_md5_t *security = NULL;
1624 /* service from service struct */
1625
1626 struct wccp2_item_header_t *assignment_header;
1627
b7d249f9 1628 struct wccp2_item_header_t *alt_assignment_type_header = NULL;
1629
0b0cfcf2 1630 struct assignment_key_t *assignment_key;
1631 /* number of routers */
1632
1633 struct wccp2_router_assign_element_t *router_assign;
1634 /* number of caches */
1635
2adffc6f 1636 struct in_addr *cache_address;
b7d249f9 1637 /* Alternative assignement mask/values */
1638 int num_maskval;
1639
1640 struct wccp2_mask_element_t *mask_element;
1641
1642 struct wccp2_value_element_t *value_element;
1643 int valuecounter, value;
0b0cfcf2 1644 char *buckets;
1645
b7d249f9 1646 assignment_offset = alt_assignment_offset = 0;
1647
0b0cfcf2 1648 router_len = sizeof(router);
1649 memset(&router, '\0', router_len);
1650 router.sin_family = AF_INET;
1651 router.sin_port = htons(port);
1652
1653 /* Start main header - fill in length later */
1654 offset = 0;
1655
1656 main_header = (struct wccp2_here_i_am_header_t *) &wccp_packet[offset];
1657 main_header->type = htonl(WCCP2_REDIRECT_ASSIGN);
1658 main_header->version = htons(WCCP2_VERSION);
1659
bf8fe701 1660 debugs(80, 2, "Running wccp2AssignBuckets");
0b0cfcf2 1661 service_list_ptr = wccp2_service_list_head;
1662
1663 while (service_list_ptr != NULL) {
1664 /* If we're not the lowest, we don't need to worry */
1665
1666 if (service_list_ptr->lowest_ip == 0) {
1667 /* XXX eww */
1668 service_list_ptr = service_list_ptr->next;
1669 continue;
1670 }
1671
1672 /* reset the offset */
1673
1674 offset = sizeof(struct wccp2_here_i_am_header_t);
1675
1676 /* build packet header from hereIam packet */
1677 /* Security info */
1678 /* XXX this should be made more generic! */
1679 /* XXX and I hate magic numbers! */
1680 switch (service_list_ptr->wccp2_security_type) {
1681
1682 case WCCP2_NO_SECURITY:
1683
1684 security = (struct wccp2_security_md5_t *) &wccp_packet[offset];
1685 memcpy(security, service_list_ptr->security_info, 8);
1686 offset += 8;
1687 break;
1688
1689 case WCCP2_MD5_SECURITY:
1690
1691 security = (struct wccp2_security_md5_t *) &wccp_packet[offset];
1692
1693 memcpy(security, service_list_ptr->security_info, sizeof(struct wccp2_security_md5_t));
1694
1695 offset += sizeof(struct wccp2_security_md5_t);
1696 break;
1697
1698 default:
1699 fatalf("Unknown Wccp2 security type\n");
1700 }
1701
1702 /* Service info */
1703
1704 memcpy(&wccp_packet[offset], service_list_ptr->service_info, sizeof(struct wccp2_service_info_t));
1705
1706 offset += sizeof(struct wccp2_service_info_t);
1707
1708 /* assignment header - fill in length later */
1709
1710 assignment_header = (struct wccp2_item_header_t *) &wccp_packet[offset];
1711
b7d249f9 1712 switch (Config.Wccp2.assignment_method) {
0b0cfcf2 1713
b7d249f9 1714 case WCCP2_ASSIGNMENT_METHOD_HASH:
1715 assignment_header->type = htons(WCCP2_REDIRECT_ASSIGNMENT);
1716
1717 offset += sizeof(struct wccp2_item_header_t);
1718 assignment_offset = offset;
1719 break;
1720
1721 case WCCP2_ASSIGNMENT_METHOD_MASK:
1722 assignment_header->type = htons(WCCP2_ALT_ASSIGNMENT);
1723
1724 offset += sizeof(struct wccp2_item_header_t);
1725 assignment_offset = offset;
1726
1727 /* The alternative assignment has an extra header, fill in length later */
1728
1729 alt_assignment_type_header = (struct wccp2_item_header_t *) &wccp_packet[offset];
1730 alt_assignment_type_header->type = htons(WCCP2_MASK_ASSIGNMENT);
1731
1732 offset += sizeof(struct wccp2_item_header_t);
1733 alt_assignment_offset = offset;
1734
1735 break;
1736
1737 default:
1738 fatalf("Unknown Wccp2 assignment method\n");
1739 }
0b0cfcf2 1740
1741 /* Assignment key - fill in master ip later */
1742
1743 assignment_key = (struct assignment_key_t *) &wccp_packet[offset];
1744
1745 assignment_key->master_number = htonl(++service_list_ptr->change_num);
1746
1747 offset += sizeof(struct assignment_key_t);
1748
1749 /* Number of routers */
1750 xmemcpy(&wccp_packet[offset], &service_list_ptr->num_routers, sizeof(service_list_ptr->num_routers));
1751
1752 offset += sizeof(service_list_ptr->num_routers);
1753
1754 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr->next != NULL; router_list_ptr = router_list_ptr->next) {
1755
1756 /* Add routers */
1757
1758 router_assign = (struct wccp2_router_assign_element_t *) &wccp_packet[offset];
1759 router_assign->router_address = router_list_ptr->info->router_address;
1760 router_assign->received_id = router_list_ptr->info->received_id;
1761 router_assign->change_number = htonl(router_list_ptr->member_change);
1762
1763 offset += sizeof(struct wccp2_router_assign_element_t);
1764 }
1765
1766 saved_offset = offset;
1767
1768 for (router_list_ptr = &service_list_ptr->router_list_head; router_list_ptr->next != NULL; router_list_ptr = router_list_ptr->next) {
b7d249f9 1769 unsigned long *weight = (unsigned long *)xcalloc(sizeof(*weight), ntohl(router_list_ptr->num_caches));
1770 unsigned long total_weight = 0;
1771 int num_caches = ntohl(router_list_ptr->num_caches);
f16fbc82 1772
0b0cfcf2 1773 offset = saved_offset;
1774
b7d249f9 1775 switch (Config.Wccp2.assignment_method) {
1776
1777 case WCCP2_ASSIGNMENT_METHOD_HASH:
1778 /* Number of caches */
1779 xmemcpy(&wccp_packet[offset], &router_list_ptr->num_caches, sizeof(router_list_ptr->num_caches));
1780 offset += sizeof(router_list_ptr->num_caches);
1781
1782 if (num_caches) {
1783 int cache;
1784
1785 for (cache = 0, cache_list_ptr = &router_list_ptr->cache_list_head; cache_list_ptr->next; cache_list_ptr = cache_list_ptr->next, cache++) {
1786 /* add caches */
0b0cfcf2 1787
2adffc6f 1788 cache_address = (struct in_addr *) &wccp_packet[offset];
0b0cfcf2 1789
2adffc6f 1790 xmemcpy(cache_address, &cache_list_ptr->cache_ip, sizeof(struct in_addr));
b7d249f9 1791 total_weight += cache_list_ptr->weight << 12;
1792 weight[cache] = cache_list_ptr->weight << 12;
0b0cfcf2 1793
2adffc6f 1794 offset += sizeof(struct in_addr);
b7d249f9 1795 }
0b0cfcf2 1796 }
0b0cfcf2 1797
b7d249f9 1798 /* Add buckets */
1799 buckets = (char *) &wccp_packet[offset];
1800
1801 memset(buckets, '\0', WCCP_BUCKETS);
1802
1803 if (num_caches != 0) {
1804 if (total_weight == 0) {
1805 for (bucket_counter = 0; bucket_counter < WCCP_BUCKETS; bucket_counter++) {
1806 buckets[bucket_counter] = (char) (bucket_counter % num_caches);
1807 }
1808 } else {
1809 unsigned long *assigned = (unsigned long *)xcalloc(sizeof(*assigned), num_caches);
1810 unsigned long done = 0;
1811 int cache = -1;
1812 unsigned long per_bucket = total_weight / WCCP_BUCKETS;
1813
1814 for (bucket_counter = 0; bucket_counter < WCCP_BUCKETS; bucket_counter++) {
1815 int n;
1816 unsigned long step;
1817
1818 for (n = num_caches; n; n--) {
1819 cache++;
1820
1821 if (cache >= num_caches)
1822 cache = 0;
1823
1824 if (!weight[cache]) {
1825 n++;
1826 continue;
1827 }
1828
1829 if (assigned[cache] <= done)
1830 break;
1831 }
1832
1833 buckets[bucket_counter] = (char) cache;
1834 step = per_bucket * total_weight / weight[cache];
1835 assigned[cache] += step;
1836 done += per_bucket;
1837 }
1838
1839 safe_free(assigned);
1840 }
1841 }
0b0cfcf2 1842
b7d249f9 1843 offset += (WCCP_BUCKETS * sizeof(char));
1844 safe_free(weight);
1845 break;
0b0cfcf2 1846
b7d249f9 1847 case WCCP2_ASSIGNMENT_METHOD_MASK:
1848 num_maskval = htonl(1);
1849 xmemcpy(&wccp_packet[offset], &num_maskval, sizeof(int));
1850 offset += sizeof(int);
1851
1852 mask_element = (struct wccp2_mask_element_t *) &wccp_packet[offset];
1853 service_flags = ntohl(service_list_ptr->service_info->service_flags);
1854
1855 if ((service_flags & WCCP2_SERVICE_SRC_IP_HASH) || (service_flags & WCCP2_SERVICE_SRC_IP_ALT_HASH)) {
1856 mask_element->source_ip_mask = htonl(0x00001741);
1857 mask_element->dest_ip_mask = 0;
1858 mask_element->source_port_mask = 0;
1859 mask_element->dest_port_mask = 0;
1860 } else if ((service_list_ptr->info.service == WCCP2_SERVICE_STANDARD) || (service_flags & WCCP2_SERVICE_DST_IP_HASH) || (service_flags & WCCP2_SERVICE_DST_IP_ALT_HASH)) {
1861 mask_element->source_ip_mask = 0;
1862 mask_element->dest_ip_mask = htonl(0x00001741);
1863 mask_element->source_port_mask = 0;
1864 mask_element->dest_port_mask = 0;
1865 } else if ((service_flags & WCCP2_SERVICE_SRC_PORT_HASH) || (service_flags & WCCP2_SERVICE_SRC_PORT_ALT_HASH)) {
1866 mask_element->source_ip_mask = 0;
1867 mask_element->dest_ip_mask = 0;
1868 mask_element->source_port_mask = htons(0x1741);
1869 mask_element->dest_port_mask = 0;
1870 } else if ((service_flags & WCCP2_SERVICE_DST_PORT_HASH) || (service_flags & WCCP2_SERVICE_DST_PORT_ALT_HASH)) {
1871 mask_element->source_ip_mask = 0;
1872 mask_element->dest_ip_mask = 0;
1873 mask_element->source_port_mask = 0;
1874 mask_element->dest_port_mask = htons(0x1741);
1875 } else {
1876 fatalf("Unknown service hash method\n");
1877 }
1878
1879 mask_element->number_values = htonl(64);
1880
1881 offset += sizeof(struct wccp2_mask_element_t);
1882
1883 cache_list_ptr = &router_list_ptr->cache_list_head;
1884 value = 0;
1885
1886 for (valuecounter = 0; valuecounter < 64; valuecounter++) {
1887
1888 value_element = (struct wccp2_value_element_t *) &wccp_packet[offset];
1889
25e26086 1890 /* Update the value according the the "correct" formula */
1891
9366bab7 1892 for (; (value & 0x1741) != value; value++) {
25e26086 1893 assert(value <= 0x1741);
1894 }
1895
b7d249f9 1896 if ((service_flags & WCCP2_SERVICE_SRC_IP_HASH) || (service_flags & WCCP2_SERVICE_SRC_IP_ALT_HASH)) {
1897 value_element->source_ip_value = htonl(value);
1898 value_element->dest_ip_value = 0;
1899 value_element->source_port_value = 0;
1900 value_element->dest_port_value = 0;
1901 } else if ((service_list_ptr->info.service == WCCP2_SERVICE_STANDARD) || (service_flags & WCCP2_SERVICE_DST_IP_HASH) || (service_flags & WCCP2_SERVICE_DST_IP_ALT_HASH)) {
1902 value_element->source_ip_value = 0;
1903 value_element->dest_ip_value = htonl(value);
1904 value_element->source_port_value = 0;
1905 value_element->dest_port_value = 0;
1906 } else if ((service_flags & WCCP2_SERVICE_SRC_PORT_HASH) || (service_flags & WCCP2_SERVICE_SRC_PORT_ALT_HASH)) {
1907 value_element->source_ip_value = 0;
1908 value_element->dest_ip_value = 0;
1909 value_element->source_port_value = htons(value);
1910 value_element->dest_port_value = 0;
1911 } else if ((service_flags & WCCP2_SERVICE_DST_PORT_HASH) || (service_flags & WCCP2_SERVICE_DST_PORT_ALT_HASH)) {
1912 value_element->source_ip_value = 0;
1913 value_element->dest_ip_value = 0;
1914 value_element->source_port_value = 0;
1915 value_element->dest_port_value = htons(value);
1916 } else {
1917 fatalf("Unknown service hash method\n");
1918 }
1919
1920 value_element->cache_ip = cache_list_ptr->cache_ip;
1921
1922 offset += sizeof(struct wccp2_value_element_t);
25e26086 1923 value++;
b7d249f9 1924
1925 /* Assign the next value to the next cache */
25e26086 1926
b7d249f9 1927 if ((cache_list_ptr->next) && (cache_list_ptr->next->next))
1928 cache_list_ptr = cache_list_ptr->next;
1929 else
1930 cache_list_ptr = &router_list_ptr->cache_list_head;
1931 }
0b0cfcf2 1932
b7d249f9 1933 /* Fill in length */
1934 alt_assignment_type_header->length = htons(offset - alt_assignment_offset);
1935
1936 break;
1937
1938 default:
1939 fatalf("Unknown Wccp2 assignment method\n");
1940 }
1941
1942 /* Fill in length */
0b0cfcf2 1943
b7d249f9 1944 assignment_header->length = htons(offset - assignment_offset);
0b0cfcf2 1945
1946 /* Fill in assignment key */
1947 assignment_key->master_ip = router_list_ptr->local_ip;
1948
1949 /* finish length */
1950
1951 main_header->length = htons(offset - sizeof(struct wccp2_here_i_am_header_t));
1952
1953 /* set the destination address */
1954 router.sin_addr = router_list_ptr->router_sendto_address;
1955
1956 /* Security update, if needed */
1957
1958 if (service_list_ptr->wccp2_security_type == WCCP2_MD5_SECURITY) {
1959 wccp2_update_md5_security(service_list_ptr->wccp_password, (char *) security, wccp_packet, offset);
1960 }
1961
1962 if (ntohl(router_list_ptr->num_caches)) {
1963 /* send packet */
c1f55201 1964
1965 if (wccp2_numrouters > 1) {
cc192b50 1966/* FIXME INET6 : drop temp conversion */ IPAddress tmp_rtr(router);
c1f55201 1967 comm_udp_sendto(theWccp2Connection,
cc192b50 1968 tmp_rtr,
c1f55201 1969 &wccp_packet,
1970 offset);
1971 } else {
1972 send(theWccp2Connection,
1973 &wccp_packet,
1974 offset,
1975 0);
1976 }
0b0cfcf2 1977 }
1978 }
1979
1980 service_list_ptr = service_list_ptr->next;
1981 }
1982}
1983
1984
1985/*
1986 * Configuration option parsing code
1987 */
1988
1989/*
1990 * Format:
1991 *
1992 * wccp2_service {standard|dynamic} {id} (password=password)
1993 */
1994void
1995parse_wccp2_service(void *v)
1996{
1997 char *t;
1998 int service = 0;
1999 int service_id = 0;
2000 int security_type = WCCP2_NO_SECURITY;
2001 char wccp_password[WCCP2_PASSWORD_LEN + 1];
2002
2003 if (wccp2_connected == 1) {
bf8fe701 2004 debugs(80, 1, "WCCPv2: Somehow reparsing the configuration without having shut down WCCP! Try reloading squid again.");
0b0cfcf2 2005 return;
2006 }
2007
2008 /* Snarf the type */
2009 if ((t = strtok(NULL, w_space)) == NULL) {
bf8fe701 2010 debugs(80, 0, "wccp2ParseServiceInfo: missing service info type (standard|dynamic)");
0b0cfcf2 2011 self_destruct();
2012 }
2013
2014 if (strcmp(t, "standard") == 0) {
2015 service = WCCP2_SERVICE_STANDARD;
2016 } else if (strcmp(t, "dynamic") == 0) {
2017 service = WCCP2_SERVICE_DYNAMIC;
2018 } else {
bf8fe701 2019 debugs(80, 0, "wccp2ParseServiceInfo: bad service info type (expected standard|dynamic, got " << t << ")");
0b0cfcf2 2020 self_destruct();
2021 }
2022
2023 /* Snarf the ID */
2024 service_id = GetInteger();
2025
2026 if (service_id < 0 || service_id > 255) {
bf8fe701 2027 debugs(80, 0, "wccp2ParseServiceInfo: service info id " << service_id << " is out of range (0..255)");
0b0cfcf2 2028 self_destruct();
2029 }
2030
2031 memset(wccp_password, 0, sizeof(wccp_password));
2032 /* Handle password, if any */
2033
2034 if ((t = strtok(NULL, w_space)) != NULL) {
2035 if (strncmp(t, "password=", 9) == 0) {
2036 security_type = WCCP2_MD5_SECURITY;
2037 strncpy(wccp_password, t + 9, WCCP2_PASSWORD_LEN);
2038 }
2039 }
2040
2041 /* Create a placeholder service record */
2042 wccp2_add_service_list(service, service_id, 0, 0, 0, empty_portlist, security_type, wccp_password);
2043}
2044
2045void
2046dump_wccp2_service(StoreEntry * e, const char *label, void *v)
2047{
2048
2049 struct wccp2_service_list_t *srv;
2050 srv = wccp2_service_list_head;
2051
2052 while (srv != NULL) {
bf8fe701 2053 debugs(80, 3, "dump_wccp2_service: id " << srv->info.service_id << ", type " << srv->info.service);
0b0cfcf2 2054 storeAppendPrintf(e, "%s %s %d", label,
2055 (srv->info.service == WCCP2_SERVICE_DYNAMIC) ? "dynamic" : "standard",
2056 srv->info.service_id);
2057
2058 if (srv->wccp2_security_type == WCCP2_MD5_SECURITY) {
2059 storeAppendPrintf(e, " %s", srv->wccp_password);
2060 }
2061
c208fd0e 2062 storeAppendPrintf(e, "\n");
2063
0b0cfcf2 2064 srv = srv->next;
2065 }
2066}
2067
2068void
2069free_wccp2_service(void *v)
2070{}
2071
2072int
2073check_null_wccp2_service(void *v)
2074{
2075 return !wccp2_service_list_head;
2076}
2077
2078/*
2079 * Format:
2080 *
2081 * wccp2_service_info {id} stuff..
2082 *
2083 * Where stuff is:
2084 *
2085 * + flags=flag,flag,flag..
2086 * + proto=protocol (tcp|udp)
2087 * + ports=port,port,port (up to a max of 8)
2088 * + priority=priority (0->255)
2089 *
2090 * The flags here are:
2091 * src_ip_hash, dst_ip_hash, source_port_hash, dst_port_hash, ports_defined,
2092 * ports_source, src_ip_alt_hash, dst_ip_alt_hash, src_port_alt_hash, dst_port_alt_hash
2093 */
2094static int
2095parse_wccp2_service_flags(char *flags)
2096{
2097 char *tmp, *tmp2;
2098 char *flag;
2099 int retflag = 0;
2100
2101 if (!flags) {
2102 return 0;
2103 }
2104
2105 tmp = xstrdup(flags);
2106 tmp2 = tmp;
2107
2108 flag = strsep(&tmp2, ",");
2109
2110 while (flag) {
2111 if (strcmp(flag, "src_ip_hash") == 0) {
2112 retflag |= WCCP2_SERVICE_SRC_IP_HASH;
2113 } else if (strcmp(flag, "dst_ip_hash") == 0) {
2114 retflag |= WCCP2_SERVICE_DST_IP_HASH;
2115 } else if (strcmp(flag, "source_port_hash") == 0) {
b7d249f9 2116 retflag |= WCCP2_SERVICE_SRC_PORT_HASH;
0b0cfcf2 2117 } else if (strcmp(flag, "dst_port_hash") == 0) {
2118 retflag |= WCCP2_SERVICE_DST_PORT_HASH;
2119 } else if (strcmp(flag, "ports_source") == 0) {
2120 retflag |= WCCP2_SERVICE_PORTS_SOURCE;
2121 } else if (strcmp(flag, "src_ip_alt_hash") == 0) {
2122 retflag |= WCCP2_SERVICE_SRC_IP_ALT_HASH;
2123 } else if (strcmp(flag, "dst_ip_alt_hash") == 0) {
2124 retflag |= WCCP2_SERVICE_DST_IP_ALT_HASH;
2125 } else if (strcmp(flag, "src_port_alt_hash") == 0) {
2126 retflag |= WCCP2_SERVICE_SRC_PORT_ALT_HASH;
2127 } else if (strcmp(flag, "dst_port_alt_hash") == 0) {
2128 retflag |= WCCP2_SERVICE_DST_PORT_ALT_HASH;
2129 } else {
2130 fatalf("Unknown wccp2 service flag: %s\n", flag);
2131 }
2132
2133 flag = strsep(&tmp2, ",");
2134 }
2135
2136 xfree(tmp);
2137 return retflag;
2138}
2139
2140static void
2141parse_wccp2_service_ports(char *options, int portlist[])
2142{
2143 int i = 0;
2144 int p;
2145 char *tmp, *tmp2, *port, *end;
2146
2147 if (!options) {
2148 return;
2149 }
2150
2151 tmp = xstrdup(options);
2152 tmp2 = tmp;
2153
2154 port = strsep(&tmp2, ",");
2155
2156 while (port && i < WCCP2_NUMPORTS) {
2157 p = strtol(port, &end, 0);
2158
2159 if (p < 1 || p > 65535) {
2160 fatalf("parse_wccp2_service_ports: port value '%s' isn't valid (1..65535)\n", port);
2161 }
2162
2163 portlist[i] = p;
2164 i++;
2165 port = strsep(&tmp2, ",");
2166 }
2167
2168 if (i == 8) {
2169 fatalf("parse_wccp2_service_ports: too many ports (maximum: 8) in list '%s'\n", options);
2170 }
2171
2172 xfree(tmp);
2173}
2174
2175void
2176parse_wccp2_service_info(void *v)
2177{
2178 char *t, *end;
2179 int service_id = 0;
2180 int flags = 0;
2181 int portlist[WCCP2_NUMPORTS];
2182 int protocol = -1; /* IPPROTO_TCP | IPPROTO_UDP */
2183
2184 struct wccp2_service_list_t *srv;
2185 int priority = -1;
2186
2187 if (wccp2_connected == 1) {
bf8fe701 2188 debugs(80, 1, "WCCPv2: Somehow reparsing the configuration without having shut down WCCP! Try reloading squid again.");
0b0cfcf2 2189 return;
2190 }
2191
bf8fe701 2192 debugs(80, 5, "parse_wccp2_service_info: called");
a302ad3c 2193 memset(portlist, 0, sizeof(portlist));
0b0cfcf2 2194 /* First argument: id */
2195 service_id = GetInteger();
2196
2197 if (service_id < 0 || service_id > 255) {
bf8fe701 2198 debugs(80, 1, "parse_wccp2_service_info: invalid service id " << service_id << " (must be between 0 .. 255)");
0b0cfcf2 2199 self_destruct();
2200 }
2201
2202 /* Next: find the (hopefully!) existing service */
2203 srv = wccp2_get_service_by_id(WCCP2_SERVICE_DYNAMIC, service_id);
2204
2205 if (srv == NULL) {
2206 fatalf("parse_wccp2_service_info: unknown dynamic service id %d: you need to define it using wccp2_service (and make sure you wish to configure it as a dynamic service.)\n", service_id);
2207 }
2208
2209 /* Next: loop until we don't have any more tokens */
2210 while ((t = strtok(NULL, w_space)) != NULL) {
2211 if (strncmp(t, "flags=", 6) == 0) {
2212 /* XXX eww, string pointer math */
2213 flags = parse_wccp2_service_flags(t + 6);
2214 } else if (strncmp(t, "ports=", 6) == 0) {
2215 parse_wccp2_service_ports(t + 6, portlist);
2216 flags |= WCCP2_SERVICE_PORTS_DEFINED;
2217 } else if (strncmp(t, "protocol=tcp", 12) == 0) {
2218 protocol = IPPROTO_TCP;
2219 } else if (strncmp(t, "protocol=udp", 12) == 0) {
2220 protocol = IPPROTO_UDP;
2221 } else if (strncmp(t, "protocol=", 9) == 0) {
2222 fatalf("parse_wccp2_service_info: id %d: unknown protocol (%s) - must be tcp or udp!\n", service_id, t);
2223 } else if (strncmp(t, "priority=", 9) == 0) {
2224 priority = strtol(t + 9, &end, 0);
2225
2226 if (priority < 0 || priority > 255) {
2227 fatalf("parse_wccp2_service_info: id %d: %s out of range (0..255)!\n", service_id, t);
2228 }
2229 } else {
2230 fatalf("parse_wccp2_service_info: id %d: unknown option '%s'\n", service_id, t);
2231 }
2232 }
2233
2234 /* Check everything is set */
2235 if (priority == -1) {
2236 fatalf("parse_wccp2_service_info: service %d: no priority defined (valid: 0..255)!\n", service_id);
2237 }
2238
2239 if (protocol == -1) {
2240 fatalf("parse_wccp2_service_info: service %d: no protocol defined (valid: tcp or udp)!\n", service_id);
2241 }
2242
2243 if (!(flags & WCCP2_SERVICE_PORTS_DEFINED)) {
2244 fatalf("parse_wccp2_service_info: service %d: no ports defined!\n", service_id);
2245 }
2246
2247 /* rightio! now we can update */
2248 wccp2_update_service(srv, WCCP2_SERVICE_DYNAMIC, service_id, priority,
2249 protocol, flags, portlist);
2250
2251 /* Done! */
2252}
2253
2254void
2255dump_wccp2_service_info(StoreEntry * e, const char *label, void *v)
2256{
2257 char comma;
2258
2259 struct wccp2_service_list_t *srv;
2260 int flags;
2261 srv = wccp2_service_list_head;
2262
2263 while (srv != NULL) {
bf8fe701 2264 debugs(80, 3, "dump_wccp2_service_info: id " << srv->info.service_id << " (type " << srv->info.service << ")");
0b0cfcf2 2265
2266 /* We don't need to spit out information for standard services */
2267
2268 if (srv->info.service == WCCP2_SERVICE_STANDARD) {
bf8fe701 2269 debugs(80, 3, "dump_wccp2_service_info: id " << srv->info.service_id << ": standard service, not dumping info");
2270
0b0cfcf2 2271 /* XXX eww */
2272 srv = srv->next;
2273 continue;
2274 }
2275
2276 storeAppendPrintf(e, "%s %d", label, srv->info.service_id);
2277
2278 /* priority */
2279 storeAppendPrintf(e, " priority=%d", srv->info.service_priority);
2280
2281 /* flags */
2282 flags = ntohl(srv->info.service_flags);
2283
2284 if (flags != 0) {
2285 comma = 0;
2286 storeAppendPrintf(e, " flags=");
2287
2288 if (flags & WCCP2_SERVICE_SRC_IP_HASH) {
2289 storeAppendPrintf(e, "%ssrc_ip_hash", comma ? "," : "");
2290 comma = 1;
2291 }
2292
2293 if (flags & WCCP2_SERVICE_DST_IP_HASH) {
2294 storeAppendPrintf(e, "%sdst_ip_hash", comma ? "," : "");
2295 comma = 1;
2296 }
2297
b7d249f9 2298 if (flags & WCCP2_SERVICE_SRC_PORT_HASH) {
0b0cfcf2 2299 storeAppendPrintf(e, "%ssource_port_hash", comma ? "," : "");
2300 comma = 1;
2301 }
2302
2303 if (flags & WCCP2_SERVICE_DST_PORT_HASH) {
2304 storeAppendPrintf(e, "%sdst_port_hash", comma ? "," : "");
2305 comma = 1;
2306 }
2307
2308 if (flags & WCCP2_SERVICE_PORTS_DEFINED) {
2309 storeAppendPrintf(e, "%sports_defined", comma ? "," : "");
2310 comma = 1;
2311 }
2312
2313 if (flags & WCCP2_SERVICE_PORTS_SOURCE) {
2314 storeAppendPrintf(e, "%sports_source", comma ? "," : "");
2315 comma = 1;
2316 }
2317
2318 if (flags & WCCP2_SERVICE_SRC_IP_ALT_HASH) {
2319 storeAppendPrintf(e, "%ssrc_ip_alt_hash", comma ? "," : "");
2320 comma = 1;
2321 }
2322
2323 if (flags & WCCP2_SERVICE_DST_IP_ALT_HASH) {
2324 storeAppendPrintf(e, "%ssrc_ip_alt_hash", comma ? "," : "");
2325 comma = 1;
2326 }
2327
2328 if (flags & WCCP2_SERVICE_SRC_PORT_ALT_HASH) {
2329 storeAppendPrintf(e, "%ssrc_port_alt_hash", comma ? "," : "");
2330 comma = 1;
2331 }
2332
2333 if (flags & WCCP2_SERVICE_DST_PORT_ALT_HASH) {
2334 storeAppendPrintf(e, "%sdst_port_alt_hash", comma ? "," : "");
2335 comma = 1;
2336 }
2337 }
2338
2339 /* ports */
2340 comma = 0;
2341
2342 if (srv->info.port0 != 0) {
2343 storeAppendPrintf(e, "%s%d", comma ? "," : " ports=", ntohs(srv->info.port0));
2344 comma = 1;
2345 }
2346
2347 if (srv->info.port1 != 0) {
2348 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port1));
2349 comma = 1;
2350 }
2351
2352 if (srv->info.port2 != 0) {
2353 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port2));
2354 comma = 1;
2355 }
2356
2357 if (srv->info.port3 != 0) {
2358 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port3));
2359 comma = 1;
2360 }
2361
2362 if (srv->info.port4 != 0) {
2363 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port4));
2364 comma = 1;
2365 }
2366
2367 if (srv->info.port5 != 0) {
2368 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port5));
2369 comma = 1;
2370 }
2371
2372 if (srv->info.port6 != 0) {
2373 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port6));
2374 comma = 1;
2375 }
2376
2377 if (srv->info.port7 != 0) {
2378 storeAppendPrintf(e, "%s%d", comma ? "," : "ports=", ntohs(srv->info.port7));
2379 comma = 1;
2380 }
2381
2382 /* protocol */
2383 storeAppendPrintf(e, " protocol=%s", (srv->info.service_protocol == IPPROTO_TCP) ? "tcp" : "udp");
2384
2385 storeAppendPrintf(e, "\n");
2386
2387 srv = srv->next;
2388 }
2389}
2390
2391void
2392free_wccp2_service_info(void *v)
2393{}
2394
2395#endif /* USE_WCCPv2 */
Mirror of https://github.com/squid-cache/squid.git