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mod_proxy.h
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1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2  * contributor license agreements. See the NOTICE file distributed with
3  * this work for additional information regarding copyright ownership.
4  * The ASF licenses this file to You under the Apache License, Version 2.0
5  * (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef MOD_PROXY_H
18 #define MOD_PROXY_H
19 
29 #include "apr_hooks.h"
30 #include "apr_optional.h"
31 #include "apr.h"
32 #include "apr_lib.h"
33 #include "apr_strings.h"
34 #include "apr_buckets.h"
35 #include "apr_md5.h"
36 #include "apr_network_io.h"
37 #include "apr_pools.h"
38 #include "apr_strings.h"
39 #include "apr_uri.h"
40 #include "apr_date.h"
41 #include "apr_strmatch.h"
42 #include "apr_fnmatch.h"
43 #include "apr_reslist.h"
44 #define APR_WANT_STRFUNC
45 #include "apr_want.h"
46 #include "apr_uuid.h"
47 #include "util_mutex.h"
48 #include "apr_global_mutex.h"
49 #include "apr_thread_mutex.h"
50 
51 #include "httpd.h"
52 #include "http_config.h"
53 #include "ap_config.h"
54 #include "http_core.h"
55 #include "http_protocol.h"
56 #include "http_request.h"
57 #include "http_vhost.h"
58 #include "http_main.h"
59 #include "http_log.h"
60 #include "http_connection.h"
61 #include "util_filter.h"
62 #include "util_ebcdic.h"
63 #include "ap_provider.h"
64 #include "ap_slotmem.h"
65 
66 #if APR_HAVE_NETINET_IN_H
67 #include <netinet/in.h>
68 #endif
69 #if APR_HAVE_ARPA_INET_H
70 #include <arpa/inet.h>
71 #endif
72 
73 /* for proxy_canonenc() */
74 enum enctype {
76 };
77 
78 typedef enum {
80 } hcmethod_t;
81 
82 typedef struct {
84  char *name;
87 
88 typedef struct {
89  unsigned int bit;
90  char flag;
91  const char *name;
93 
94 #define BALANCER_PREFIX "balancer://"
95 
96 #if APR_CHARSET_EBCDIC
97 #define CRLF "\r\n"
98 #else /*APR_CHARSET_EBCDIC*/
99 #define CRLF "\015\012"
100 #endif /*APR_CHARSET_EBCDIC*/
101 
102 /* default Max-Forwards header setting */
103 /* Set this to -1, which complies with RFC2616 by not setting
104  * max-forwards if the client didn't send it to us.
105  */
106 #define DEFAULT_MAX_FORWARDS -1
107 
109 typedef struct proxy_worker proxy_worker;
112 
113 /* static information about a remote proxy */
114 struct proxy_remote {
115  const char *scheme; /* the schemes handled by this proxy, or '*' */
116  const char *protocol; /* the scheme used to talk to this proxy */
117  const char *hostname; /* the hostname of this proxy */
118  ap_regex_t *regexp; /* compiled regex (if any) for the remote */
119  int use_regex; /* simple boolean. True if we have a regex pattern */
120  apr_port_t port; /* the port for this proxy */
121 };
122 
123 #define PROXYPASS_NOCANON 0x01
124 #define PROXYPASS_INTERPOLATE 0x02
125 #define PROXYPASS_NOQUERY 0x04
126 struct proxy_alias {
127  const char *real;
128  const char *fake;
130  unsigned int flags;
131  proxy_balancer *balancer; /* only valid for reverse-proxys */
132 };
133 
135  char *name;
136  struct in_addr addr, mask;
138  int (*matcher) (struct dirconn_entry * This, request_rec *r);
139 };
140 
142  const char *name;
144 };
145 
146 typedef struct {
152  apr_array_header_t *workers; /* non-balancer workers, eg ProxyPass http://example.com */
153  apr_array_header_t *balancers; /* list of balancers @ config time */
154  proxy_worker *forward; /* forward proxy worker */
155  proxy_worker *reverse; /* reverse "module-driven" proxy worker */
156  const char *domain; /* domain name to use in absence of a domain name in the request */
157  const char *id;
158  apr_pool_t *pool; /* Pool used for allocating this struct's elements */
159  int req; /* true if proxy requests are enabled */
160  int max_balancers; /* maximum number of allowed balancers */
161  int bgrowth; /* number of post-config balancers can added */
162  enum {
166  via_full
167  } viaopt; /* how to deal with proxy Via: headers */
170  long maxfwd;
172  enum {
175  bad_body
176  } badopt; /* how to deal with bad headers */
177  enum {
180  status_full
181  } proxy_status; /* Status display options */
183  apr_global_mutex_t *mutex; /* global lock - not used */
184  ap_slotmem_instance_t *bslot; /* balancers shm data - runtime */
186 
187  unsigned int req_set:1;
188  unsigned int viaopt_set:1;
189  unsigned int recv_buffer_size_set:1;
190  unsigned int io_buffer_size_set:1;
191  unsigned int maxfwd_set:1;
192  unsigned int timeout_set:1;
193  unsigned int badopt_set:1;
194  unsigned int proxy_status_set:1;
195  unsigned int source_address_set:1;
196  unsigned int bgrowth_set:1;
197  unsigned int bal_persist:1;
198  unsigned int inherit:1;
199  unsigned int inherit_set:1;
200  unsigned int ppinherit:1;
201  unsigned int ppinherit_set:1;
203 
204 
205 typedef struct {
206  const char *p; /* The path */
207  ap_regex_t *r; /* Is this a regex? */
208 
209 /* FIXME
210  * ProxyPassReverse and friends are documented as working inside
211  * <Location>. But in fact they never have done in the case of
212  * more than one <Location>, because the server_conf can't see it.
213  * We need to move them to the per-dir config.
214  * Discussed in February 2005:
215  * http://marc.theaimsgroup.com/?l=apache-httpd-dev&m=110726027118798&w=2
216  */
220  signed char p_is_fnmatch; /* Is the path an fnmatch candidate? */
221  signed char interpolate_env;
223 
232  unsigned int error_override:1;
233  unsigned int preserve_host:1;
234  unsigned int preserve_host_set:1;
235  unsigned int error_override_set:1;
236  unsigned int alias_set:1;
237  unsigned int add_forwarded_headers:1;
238  unsigned int add_forwarded_headers_set:1;
239 
242 
243  unsigned int forward_100_continue:1;
244  unsigned int forward_100_continue_set:1;
246 
247 /* if we interpolate env vars per-request, we'll need a per-request
248  * copy of the reverse proxy config
249  */
250 typedef struct {
255 
256 typedef struct {
258  request_rec *r; /* Request record of the backend request
259  * that is used over the backend connection. */
260  proxy_worker *worker; /* Connection pool this connection belongs to */
261  apr_pool_t *pool; /* Subpool for hostname and addr data */
262  const char *hostname;
263  apr_sockaddr_t *addr; /* Preparsed remote address info */
264  apr_pool_t *scpool; /* Subpool used for socket and connection data */
265  apr_socket_t *sock; /* Connection socket */
266  void *data; /* per scheme connection data */
267  void *forward; /* opaque forward proxy data */
268  apr_uint32_t flags; /* Connection flags */
270  unsigned int is_ssl:1;
271  unsigned int close:1; /* Close 'this' connection */
272  unsigned int need_flush:1; /* Flag to decide whether we need to flush the
273  * filter chain or not */
274  unsigned int inreslist:1; /* connection in apr_reslist? */
275  const char *uds_path; /* Unix domain socket path */
276  const char *ssl_hostname;/* Hostname (SNI) in use by SSL connection */
277  apr_bucket_brigade *tmp_bb;/* Temporary brigade created with the connection
278  * and its scpool/bucket_alloc (NULL before),
279  * must be left cleaned when used (locally).
280  */
282 
283 typedef struct {
284  float cache_completion; /* completion percentage */
285  int content_length; /* length of the content */
287 
288 /* Connection pool */
290  apr_pool_t *pool; /* The pool used in constructor and destructor calls */
291  apr_sockaddr_t *addr; /* Preparsed remote address info */
292  apr_reslist_t *res; /* Connection resource list */
293  proxy_conn_rec *conn; /* Single connection for prefork mpm */
294 };
295 
296 /* worker status bits */
297 /*
298  * NOTE: Keep up-to-date w/ proxy_wstat_tbl[]
299  * in mod_proxy.c !
300  */
301 #define PROXY_WORKER_INITIALIZED 0x0001
302 #define PROXY_WORKER_IGNORE_ERRORS 0x0002
303 #define PROXY_WORKER_DRAIN 0x0004
304 #define PROXY_WORKER_GENERIC 0x0008
305 #define PROXY_WORKER_IN_SHUTDOWN 0x0010
306 #define PROXY_WORKER_DISABLED 0x0020
307 #define PROXY_WORKER_STOPPED 0x0040
308 #define PROXY_WORKER_IN_ERROR 0x0080
309 #define PROXY_WORKER_HOT_STANDBY 0x0100
310 #define PROXY_WORKER_FREE 0x0200
311 #define PROXY_WORKER_HC_FAIL 0x0400
312 #define PROXY_WORKER_HOT_SPARE 0x0800
313 
314 /* worker status flags */
315 #define PROXY_WORKER_INITIALIZED_FLAG 'O'
316 #define PROXY_WORKER_IGNORE_ERRORS_FLAG 'I'
317 #define PROXY_WORKER_DRAIN_FLAG 'N'
318 #define PROXY_WORKER_GENERIC_FLAG 'G'
319 #define PROXY_WORKER_IN_SHUTDOWN_FLAG 'U'
320 #define PROXY_WORKER_DISABLED_FLAG 'D'
321 #define PROXY_WORKER_STOPPED_FLAG 'S'
322 #define PROXY_WORKER_IN_ERROR_FLAG 'E'
323 #define PROXY_WORKER_HOT_STANDBY_FLAG 'H'
324 #define PROXY_WORKER_FREE_FLAG 'F'
325 #define PROXY_WORKER_HC_FAIL_FLAG 'C'
326 #define PROXY_WORKER_HOT_SPARE_FLAG 'R'
327 
328 #define PROXY_WORKER_NOT_USABLE_BITMAP ( PROXY_WORKER_IN_SHUTDOWN | \
329 PROXY_WORKER_DISABLED | PROXY_WORKER_STOPPED | PROXY_WORKER_IN_ERROR | \
330 PROXY_WORKER_HC_FAIL )
331 
332 /* NOTE: these check the shared status */
333 #define PROXY_WORKER_IS_INITIALIZED(f) ( (f)->s->status & PROXY_WORKER_INITIALIZED )
334 
335 #define PROXY_WORKER_IS_STANDBY(f) ( (f)->s->status & PROXY_WORKER_HOT_STANDBY )
336 
337 #define PROXY_WORKER_IS_SPARE(f) ( (f)->s->status & PROXY_WORKER_HOT_SPARE )
338 
339 #define PROXY_WORKER_IS_USABLE(f) ( ( !( (f)->s->status & PROXY_WORKER_NOT_USABLE_BITMAP) ) && \
340  PROXY_WORKER_IS_INITIALIZED(f) )
341 
342 #define PROXY_WORKER_IS_DRAINING(f) ( (f)->s->status & PROXY_WORKER_DRAIN )
343 
344 #define PROXY_WORKER_IS_GENERIC(f) ( (f)->s->status & PROXY_WORKER_GENERIC )
345 
346 #define PROXY_WORKER_IS_HCFAILED(f) ( (f)->s->status & PROXY_WORKER_HC_FAIL )
347 
348 #define PROXY_WORKER_IS(f, b) ( (f)->s->status & (b) )
349 
350 /* default worker retry timeout in seconds */
351 #define PROXY_WORKER_DEFAULT_RETRY 60
352 
353 /* Some max char string sizes, for shm fields */
354 #define PROXY_WORKER_MAX_SCHEME_SIZE 16
355 #define PROXY_WORKER_MAX_ROUTE_SIZE 96
356 #define PROXY_BALANCER_MAX_ROUTE_SIZE 64
357 #define PROXY_WORKER_MAX_NAME_SIZE 256
358 #define PROXY_BALANCER_MAX_NAME_SIZE 64
359 #define PROXY_WORKER_MAX_HOSTNAME_SIZE 96
360 #define PROXY_BALANCER_MAX_HOSTNAME_SIZE 64
361 #define PROXY_BALANCER_MAX_STICKY_SIZE 64
362 #define PROXY_WORKER_MAX_SECRET_SIZE 64
363 
364 #define PROXY_RFC1035_HOSTNAME_SIZE 256
365 
366 /* RFC-1035 mentions limits of 255 for host-names and 253 for domain-names,
367  * dotted together(?) this would fit the below size (+ trailing NUL).
368  */
369 #define PROXY_WORKER_RFC1035_NAME_SIZE 512
370 
371 #define PROXY_MAX_PROVIDER_NAME_SIZE 16
372 
373 #define PROXY_STRNCPY(dst, src) ap_proxy_strncpy((dst), (src), (sizeof(dst)))
374 
375 #define PROXY_COPY_CONF_PARAMS(w, c) \
376 do { \
377 (w)->s->timeout = (c)->timeout; \
378 (w)->s->timeout_set = (c)->timeout_set; \
379 (w)->s->recv_buffer_size = (c)->recv_buffer_size; \
380 (w)->s->recv_buffer_size_set = (c)->recv_buffer_size_set; \
381 (w)->s->io_buffer_size = (c)->io_buffer_size; \
382 (w)->s->io_buffer_size_set = (c)->io_buffer_size_set; \
383 } while (0)
384 
385 #define PROXY_DO_100_CONTINUE(w, r) \
386 ((w)->s->ping_timeout_set \
387  && (PROXYREQ_REVERSE == (r)->proxyreq) \
388  && !(apr_table_get((r)->subprocess_env, "force-proxy-request-1.0")) \
389  && ap_request_has_body((r)))
390 
391 /* use 2 hashes */
392 typedef struct {
393  unsigned int def;
394  unsigned int fnv;
395 } proxy_hashes ;
396 
397 /* Runtime worker status information. Shared in scoreboard */
398 typedef struct {
400  char scheme[PROXY_WORKER_MAX_SCHEME_SIZE]; /* scheme to use ajp|http|https */
401  char hostname[PROXY_WORKER_MAX_HOSTNAME_SIZE]; /* remote backend address (deprecated, use hostname_ex below) */
402  char route[PROXY_WORKER_MAX_ROUTE_SIZE]; /* balancing route */
403  char redirect[PROXY_WORKER_MAX_ROUTE_SIZE]; /* temporary balancing redirection route */
404  char flusher[PROXY_WORKER_MAX_SCHEME_SIZE]; /* flush provider used by mod_proxy_fdpass */
405  char uds_path[PROXY_WORKER_MAX_NAME_SIZE]; /* path to worker's unix domain socket if applicable */
406  char hcuri[PROXY_WORKER_MAX_ROUTE_SIZE]; /* health check uri */
407  char hcexpr[PROXY_WORKER_MAX_SCHEME_SIZE]; /* name of condition expr for health check */
408  char secret[PROXY_WORKER_MAX_SECRET_SIZE]; /* authentication secret (e.g. AJP13) */
409  char upgrade[PROXY_WORKER_MAX_SCHEME_SIZE];/* upgrade protocol used by mod_proxy_wstunnel */
410  char hostname_ex[PROXY_RFC1035_HOSTNAME_SIZE]; /* RFC1035 compliant version of the remote backend address */
411  int lbset; /* load balancer cluster set */
412  int retries; /* number of retries on this worker */
413  int lbstatus; /* Current lbstatus */
414  int lbfactor; /* dynamic lbfactor */
415  int min; /* Desired minimum number of available connections */
416  int smax; /* Soft maximum on the total number of connections */
417  int hmax; /* Hard maximum on the total number of connections */
418  int flush_wait; /* poll wait time in microseconds if flush_auto */
419  int index; /* shm array index */
420  int passes; /* number of successes for check to pass */
421  int pcount; /* current count of passes */
422  int fails; /* number of failures for check to fail */
423  int fcount; /* current count of failures */
424  proxy_hashes hash; /* hash of worker name */
425  unsigned int status; /* worker status bitfield */
426  enum {
429  flush_auto
430  } flush_packets; /* control AJP flushing */
431  hcmethod_t method; /* method to use for health check */
432  apr_time_t updated; /* timestamp of last update for dynamic workers, or queue-time of HC workers */
433  apr_time_t error_time; /* time of the last error */
434  apr_interval_time_t ttl; /* maximum amount of time in seconds a connection
435  * may be available while exceeding the soft limit */
436  apr_interval_time_t retry; /* retry interval */
437  apr_interval_time_t timeout; /* connection timeout */
438  apr_interval_time_t acquire; /* acquire timeout when the maximum number of connections is exceeded */
444  apr_size_t elected; /* Number of times the worker was elected */
445  apr_size_t busy; /* busyness factor */
446  apr_size_t response_field_size; /* Size of proxy response buffer in bytes. */
448  apr_off_t transferred;/* Number of bytes transferred to remote */
449  apr_off_t read; /* Number of bytes read from remote */
450  void *context; /* general purpose storage */
451  unsigned int keepalive:1;
452  unsigned int disablereuse:1;
453  unsigned int is_address_reusable:1;
454  unsigned int retry_set:1;
455  unsigned int timeout_set:1;
456  unsigned int acquire_set:1;
457  unsigned int ping_timeout_set:1;
458  unsigned int conn_timeout_set:1;
459  unsigned int recv_buffer_size_set:1;
460  unsigned int io_buffer_size_set:1;
461  unsigned int keepalive_set:1;
462  unsigned int disablereuse_set:1;
463  unsigned int was_malloced:1;
464  unsigned int is_name_matchable:1;
465  unsigned int response_field_size_set:1;
467 
468 #define ALIGNED_PROXY_WORKER_SHARED_SIZE (APR_ALIGN_DEFAULT(sizeof(proxy_worker_shared)))
469 
470 /* Worker configuration */
471 struct proxy_worker {
472  proxy_hashes hash; /* hash of worker name */
473  unsigned int local_status; /* status of per-process worker */
474  proxy_conn_pool *cp; /* Connection pool to use */
475  proxy_worker_shared *s; /* Shared data */
476  proxy_balancer *balancer; /* which balancer am I in? */
477 #if APR_HAS_THREADS
478  apr_thread_mutex_t *tmutex; /* Thread lock for updating address cache */
479 #endif
480  void *context; /* general purpose storage */
481  ap_conf_vector_t *section_config; /* <Proxy>-section wherein defined */
482 };
483 
484 /* default to health check every 30 seconds */
485 #define HCHECK_WATHCHDOG_DEFAULT_INTERVAL (30)
486 
487 /*
488  * Time to wait (in microseconds) to find out if more data is currently
489  * available at the backend.
490  */
491 #define PROXY_FLUSH_WAIT 10000
492 
493 typedef struct {
494  char sticky_path[PROXY_BALANCER_MAX_STICKY_SIZE]; /* URL sticky session identifier */
495  char sticky[PROXY_BALANCER_MAX_STICKY_SIZE]; /* sticky session identifier */
496  char lbpname[PROXY_MAX_PROVIDER_NAME_SIZE]; /* lbmethod provider name */
497  char nonce[APR_UUID_FORMATTED_LENGTH + 1];
502  apr_interval_time_t timeout; /* Timeout for waiting on free connection */
503  apr_time_t wupdated; /* timestamp of last change to workers list */
504  int max_attempts; /* Number of attempts before failing */
505  int index; /* shm array index */
507  unsigned int sticky_force:1; /* Disable failover for sticky sessions */
508  unsigned int scolonsep:1; /* true if ';' seps sticky session paths */
509  unsigned int max_attempts_set:1;
510  unsigned int was_malloced:1;
511  unsigned int need_reset:1;
512  unsigned int vhosted:1;
513  unsigned int inactive:1;
514  unsigned int forcerecovery:1;
515  char sticky_separator; /* separator for sessionid/route */
516  unsigned int forcerecovery_set:1;
517  unsigned int scolonsep_set:1;
518  unsigned int sticky_force_set:1;
519  unsigned int nonce_set:1;
520  unsigned int sticky_separator_set:1;
522 
523 #define ALIGNED_PROXY_BALANCER_SHARED_SIZE (APR_ALIGN_DEFAULT(sizeof(proxy_balancer_shared)))
524 
526  apr_array_header_t *workers; /* initially configured workers */
527  apr_array_header_t *errstatuses; /* statuses to force members into error */
528  ap_slotmem_instance_t *wslot; /* worker shm data - runtime */
530  int growth; /* number of post-config workers can added */
531  int max_workers; /* maximum number of allowed workers */
533  apr_time_t wupdated; /* timestamp of last change to workers list */
535 #if APR_HAS_THREADS
536  apr_global_mutex_t *gmutex; /* global lock for updating list of workers */
537  apr_thread_mutex_t *tmutex; /* Thread lock for updating shm */
538 #endif
540  void *context; /* general purpose storage */
541  proxy_balancer_shared *s; /* Shared data */
542  int failontimeout; /* Whether to mark a member in Err if IO timeout occurs */
543  unsigned int failontimeout_set:1;
544  unsigned int growth_set:1;
545  unsigned int lbmethod_set:1;
546  ap_conf_vector_t *section_config; /* <Proxy>-section wherein defined */
547 };
548 
550  const char *name; /* name of the load balancer method*/
551  proxy_worker *(*finder)(proxy_balancer *balancer,
552  request_rec *r);
553  void *context; /* general purpose storage */
557 };
558 
559 #define PROXY_THREAD_LOCK(x) ( (x) && (x)->tmutex ? apr_thread_mutex_lock((x)->tmutex) : APR_SUCCESS)
560 #define PROXY_THREAD_UNLOCK(x) ( (x) && (x)->tmutex ? apr_thread_mutex_unlock((x)->tmutex) : APR_SUCCESS)
561 
562 #define PROXY_GLOBAL_LOCK(x) ( (x) && (x)->gmutex ? apr_global_mutex_lock((x)->gmutex) : APR_SUCCESS)
563 #define PROXY_GLOBAL_UNLOCK(x) ( (x) && (x)->gmutex ? apr_global_mutex_unlock((x)->gmutex) : APR_SUCCESS)
564 
565 /* hooks */
566 
567 /* Create a set of PROXY_DECLARE(type), PROXY_DECLARE_NONSTD(type) and
568  * PROXY_DECLARE_DATA with appropriate export and import tags for the platform
569  */
570 #if !defined(WIN32)
571 #define PROXY_DECLARE(type) type
572 #define PROXY_DECLARE_NONSTD(type) type
573 #define PROXY_DECLARE_DATA
574 #elif defined(PROXY_DECLARE_STATIC)
575 #define PROXY_DECLARE(type) type __stdcall
576 #define PROXY_DECLARE_NONSTD(type) type
577 #define PROXY_DECLARE_DATA
578 #elif defined(PROXY_DECLARE_EXPORT)
579 #define PROXY_DECLARE(type) __declspec(dllexport) type __stdcall
580 #define PROXY_DECLARE_NONSTD(type) __declspec(dllexport) type
581 #define PROXY_DECLARE_DATA __declspec(dllexport)
582 #else
583 #define PROXY_DECLARE(type) __declspec(dllimport) type __stdcall
584 #define PROXY_DECLARE_NONSTD(type) __declspec(dllimport) type
585 #define PROXY_DECLARE_DATA __declspec(dllimport)
586 #endif
587 
588 /* Using PROXY_DECLARE_OPTIONAL_HOOK instead of
589  * APR_DECLARE_EXTERNAL_HOOK allows build/make_nw_export.awk
590  * to distinguish between hooks that implement
591  * proxy_hook_xx and proxy_hook_get_xx in mod_proxy.c and
592  * those which don't.
593  */
594 #define PROXY_DECLARE_OPTIONAL_HOOK APR_DECLARE_EXTERNAL_HOOK
595 
596 
597 /* These 2 are in mod_proxy.c */
600 
601 /* Following 4 from health check */
603 APR_DECLARE_OPTIONAL_FN(void, hc_select_exprs, (request_rec *, const char *));
604 APR_DECLARE_OPTIONAL_FN(int, hc_valid_expr, (request_rec *, const char *));
607  const char *, const char *, void *));
608 
609 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, section_post_config,
610  (apr_pool_t *p, apr_pool_t *plog,
611  apr_pool_t *ptemp, server_rec *s,
612  ap_conf_vector_t *section_config))
613 
614 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, scheme_handler,
616  proxy_server_conf *conf, char *url,
618 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, canon_handler,
619  (request_rec *r, char *url))
620 
621 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, create_req,
622  (request_rec *r, request_rec *pr))
624 
625 
626 
633  (request_rec *r, proxy_conn_rec *backend))
634 
643 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, pre_request,
644  (proxy_worker **worker, proxy_balancer **balancer,
645  request_rec *r, proxy_server_conf *conf, char **url))
650 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, post_request,
651  (proxy_worker *worker, proxy_balancer *balancer,
652  request_rec *r, proxy_server_conf *conf))
653 
659 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, request_status,
660  (int *status, request_rec *r))
661 
662 /* proxy_util.c */
663 
664 PROXY_DECLARE(apr_status_t) ap_proxy_strncpy(char *dst, const char *src,
665  apr_size_t dlen);
666 PROXY_DECLARE(int) ap_proxy_hex2c(const char *x);
667 PROXY_DECLARE(void) ap_proxy_c2hex(int ch, char *x);
668 PROXY_DECLARE(char *)ap_proxy_canonenc(apr_pool_t *p, const char *x, int len, enum enctype t,
669  int forcedec, int proxyreq);
670 PROXY_DECLARE(char *)ap_proxy_canon_netloc(apr_pool_t *p, char **const urlp, char **userp,
671  char **passwordp, char **hostp, apr_port_t *port);
672 PROXY_DECLARE(int) ap_proxyerror(request_rec *r, int statuscode, const char *message);
673 
683  const char *hostname, apr_sockaddr_t *addr);
684 
685 
687 /* DEPRECATED (will be replaced with ap_proxy_connect_backend */
689 /* DEPRECATED (will be replaced with ap_proxy_check_connection */
691  request_rec *r);
695  ap_conf_vector_t *per_dir_config,
696  int enable);
698 PROXY_DECLARE(const char *) ap_proxy_ssl_val(apr_pool_t *p, server_rec *s, conn_rec *c, request_rec *r, const char *var);
699 
700 /* Header mapping functions, and a typedef of their signature */
701 PROXY_DECLARE(const char *) ap_proxy_location_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *url);
702 PROXY_DECLARE(const char *) ap_proxy_cookie_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *str);
703 
704 #if !defined(WIN32)
705 typedef const char *(*ap_proxy_header_reverse_map_fn)(request_rec *,
706  proxy_dir_conf *, const char *);
707 #elif defined(PROXY_DECLARE_STATIC)
708 typedef const char *(__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
709  proxy_dir_conf *, const char *);
710 #elif defined(PROXY_DECLARE_EXPORT)
711 typedef __declspec(dllexport) const char *
712  (__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
713  proxy_dir_conf *, const char *);
714 #else
715 typedef __declspec(dllimport) const char *
716  (__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
717  proxy_dir_conf *, const char *);
718 #endif
719 
720 
721 /* Connection pool API */
730  proxy_worker *worker);
731 
741  proxy_balancer *balancer,
742  proxy_server_conf *conf,
743  const char *url);
755  proxy_worker **worker,
756  proxy_balancer *balancer,
757  proxy_server_conf *conf,
758  const char *url,
759  int do_malloc);
760 
773  proxy_worker **worker,
774  proxy_balancer *balancer,
775  proxy_server_conf *conf,
776  const char *url,
777  int do_malloc);
778 
787  proxy_worker_shared *shm,
788  int i);
789 
798  server_rec *s,
799  apr_pool_t *p);
800 
808 
809 
819  proxy_server_conf *conf,
820  const char *url,
821  int careactive);
822 
831  proxy_balancer *balancer,
832  const char *url);
833 
845  proxy_balancer **balancer,
846  proxy_server_conf *conf,
847  const char *url,
848  const char *alias,
849  int do_malloc);
850 
860  int i);
861 
870  server_rec *s,
871  apr_pool_t *p);
872 
873 typedef int (proxy_is_best_callback_fn_t)(proxy_worker *current, proxy_worker *prev_best, void *baton);
874 
886  request_rec *r,
888  void *baton);
889 /*
890  * Needed by the lb modules.
891  */
893  (proxy_balancer *balancer,
894  request_rec *r,
896  void *baton));
897 
907  ap_slotmem_instance_t *slot,
908  proxy_worker *worker,
909  unsigned int *index);
910 
920  ap_slotmem_instance_t *slot,
921  proxy_balancer *balancer,
922  unsigned int *index);
923 
935 PROXY_DECLARE(int) ap_proxy_pre_request(proxy_worker **worker,
936  proxy_balancer **balancer,
937  request_rec *r,
938  proxy_server_conf *conf,
939  char **url);
950 PROXY_DECLARE(int) ap_proxy_post_request(proxy_worker *worker,
951  proxy_balancer *balancer,
952  request_rec *r,
953  proxy_server_conf *conf);
954 
972  proxy_server_conf *conf,
973  proxy_worker *worker,
974  proxy_conn_rec *conn,
975  apr_uri_t *uri,
976  char **url,
977  const char *proxyname,
979  char *server_portstr,
980  int server_portstr_size);
981 
992  (const char *proxy_function, proxy_worker *worker, server_rec *s));
993 
1005 PROXY_DECLARE(int) ap_proxy_acquire_connection(const char *proxy_function,
1006  proxy_conn_rec **conn,
1007  proxy_worker *worker,
1008  server_rec *s);
1017 PROXY_DECLARE(int) ap_proxy_release_connection(const char *proxy_function,
1018  proxy_conn_rec *conn,
1019  server_rec *s);
1020 
1021 #define PROXY_CHECK_CONN_EMPTY (1 << 0)
1022 
1037  proxy_conn_rec *conn,
1038  server_rec *server,
1039  unsigned max_blank_lines,
1040  int flags);
1041 
1052 PROXY_DECLARE(int) ap_proxy_connect_backend(const char *proxy_function,
1053  proxy_conn_rec *conn,
1054  proxy_worker *worker,
1055  server_rec *s);
1056 
1064 PROXY_DECLARE(apr_status_t) ap_proxy_connect_uds(apr_socket_t *sock,
1065  const char *uds_path,
1066  apr_pool_t *p);
1077 PROXY_DECLARE(int) ap_proxy_connection_create(const char *proxy_function,
1078  proxy_conn_rec *conn,
1079  conn_rec *c, server_rec *s);
1080 
1090 PROXY_DECLARE(int) ap_proxy_connection_create_ex(const char *proxy_function,
1091  proxy_conn_rec *conn,
1092  request_rec *r);
1102 
1111 PROXY_DECLARE(void) ap_proxy_backend_broke(request_rec *r,
1112  apr_bucket_brigade *brigade);
1113 
1122 
1123 PROXY_DECLARE(unsigned int) ap_proxy_hashfunc(const char *str, proxy_hash_t method);
1124 
1125 
1133 PROXY_DECLARE(apr_status_t) ap_proxy_set_wstatus(char c, int set, proxy_worker *w);
1134 
1135 
1142 PROXY_DECLARE(char *) ap_proxy_parse_wstatus(apr_pool_t *p, proxy_worker *w);
1143 
1144 
1153  server_rec *s,
1154  proxy_server_conf *conf);
1155 
1156 
1164 PROXY_DECLARE(int) ap_proxy_trans_match(request_rec *r,
1165  struct proxy_alias *ent,
1166  proxy_dir_conf *dconf);
1167 
1184  apr_bucket_brigade *header_brigade,
1185  request_rec *r,
1186  proxy_conn_rec *p_conn,
1187  proxy_worker *worker,
1188  proxy_server_conf *conf,
1189  apr_uri_t *uri,
1190  char *url, char *server_portstr,
1191  char **old_cl_val,
1192  char **old_te_val);
1193 
1204  request_rec *r, proxy_conn_rec *p_conn,
1205  conn_rec *origin, apr_bucket_brigade *bb,
1206  int flush);
1207 
1216  (request_rec *r, apr_table_t *headers));
1217 
1218 
1224 
1225 #define PROXY_LBMETHOD "proxylbmethod"
1226 
1227 /* The number of dynamic workers that can be added when reconfiguring.
1228  * If this limit is reached you must stop and restart the server.
1229  */
1230 #define PROXY_DYNAMIC_BALANCER_LIMIT 16
1231 
1236 int ap_proxy_lb_workers(void);
1237 
1243 PROXY_DECLARE(apr_port_t) ap_proxy_port_of_scheme(const char *scheme);
1244 
1250 PROXY_DECLARE (const char *) ap_proxy_show_hcmethod(hcmethod_t method);
1251 
1258 PROXY_DECLARE(const char *) ap_proxy_de_socketfy(apr_pool_t *p, const char *url);
1259 
1260 /*
1261  * Transform buckets from one bucket allocator to another one by creating a
1262  * transient bucket for each data bucket and let it use the data read from
1263  * the old bucket. Metabuckets are transformed by just recreating them.
1264  * Attention: Currently only the following bucket types are handled:
1265  *
1266  * All data buckets
1267  * FLUSH
1268  * EOS
1269  *
1270  * If an other bucket type is found its type is logged as a debug message
1271  * and APR_EGENERAL is returned.
1272  *
1273  * @param r request_rec of the actual request. Used for logging purposes
1274  * @param from the bucket brigade to take the buckets from
1275  * @param to the bucket brigade to store the transformed buckets
1276  * @return apr_status_t of the operation. Either APR_SUCCESS or
1277  * APR_EGENERAL
1278  */
1280  apr_bucket_brigade *from,
1281  apr_bucket_brigade *to);
1282 
1283 /*
1284  * Sends all data that can be read non blocking from the input filter chain of
1285  * c_i and send it down the output filter chain of c_o. For reading it uses
1286  * the bucket brigade bb_i which should be created from the bucket allocator
1287  * associated with c_i. For sending through the output filter chain it uses
1288  * the bucket brigade bb_o which should be created from the bucket allocator
1289  * associated with c_o. In order to get the buckets from bb_i to bb_o
1290  * ap_proxy_buckets_lifetime_transform is used.
1291  *
1292  * @param r request_rec of the actual request. Used for logging purposes
1293  * @param c_i inbound connection conn_rec
1294  * @param c_o outbound connection conn_rec
1295  * @param bb_i bucket brigade for pulling data from the inbound connection
1296  * @param bb_o bucket brigade for sending data through the outbound connection
1297  * @param name string for logging from where data was pulled
1298  * @param sent if not NULL will be set to 1 if data was sent through c_o
1299  * @param bsize maximum amount of data pulled in one iteration from c_i
1300  * @param after if set flush data on c_o only once after the loop
1301  * @return apr_status_t of the operation. Could be any error returned from
1302  * either the input filter chain of c_i or the output filter chain
1303  * of c_o. APR_EPIPE if the outgoing connection was aborted.
1304  */
1306  request_rec *r,
1307  conn_rec *c_i,
1308  conn_rec *c_o,
1309  apr_bucket_brigade *bb_i,
1310  apr_bucket_brigade *bb_o,
1311  const char *name,
1312  int *sent,
1313  apr_off_t bsize,
1314  int after);
1315 
1317 
1318 #endif /*MOD_PROXY_H*/
1319 
#define socket
Definition: apr_arch_os2calls.h:41
int ap_proxy_trans_match(request_rec *r, struct proxy_alias *ent, proxy_dir_conf *dconf)
int ap_proxy_connect_to_backend(apr_socket_t **, const char *, apr_sockaddr_t *, const char *, proxy_server_conf *, request_rec *)
proxy_worker_shared * s
Definition: mod_proxy.h:475
unsigned int fnv
Definition: mod_proxy.h:394
size_t apr_size_t
Definition: apr.h:375
int ap_proxy_retry_worker(const char *proxy_function, proxy_worker *worker, server_rec *s)
apr_pool_t * pool
Definition: mod_proxy.h:261
proxy_balancer * ap_proxy_get_balancer(apr_pool_t *p, proxy_server_conf *conf, const char *url, int careactive)
int min
Definition: mod_proxy.h:415
proxy_worker proxy_server_conf char const char apr_port_t proxyport
Definition: mod_proxy.h:617
unsigned int growth_set
Definition: mod_proxy.h:544
int hmax
Definition: mod_proxy.h:417
apr_sockaddr_t * addr
Definition: mod_proxy.h:263
int ap_proxy_pass_brigade(apr_bucket_alloc_t *bucket_alloc, request_rec *r, proxy_conn_rec *p_conn, conn_rec *origin, apr_bucket_brigade *bb, int flush)
int ap_proxy_ssl_enable(conn_rec *c)
void hc_show_exprs(request_rec *)
APR Network library.
APR UUID library.
apr_size_t recv_buffer_size
Definition: mod_proxy.h:168
struct ap_slotmem_instance_t ap_slotmem_instance_t
Definition: ap_slotmem.h:75
void hc_select_exprs(request_rec *, const char *)
Apache Configuration.
ap_regex_t * regex
Definition: mod_proxy.h:129
int ap_proxy_checkproxyblock(request_rec *r, proxy_server_conf *conf, const char *hostname, apr_sockaddr_t *addr)
ap_regex_t * regexp
Definition: mod_proxy.h:118
char * ap_proxy_worker_name(apr_pool_t *p, proxy_worker *worker)
Definition: apr_arch_thread_mutex.h:28
apr_port_t ap_proxy_port_of_scheme(const char *scheme)
const char * protocol
Definition: mod_proxy.h:116
Definition: apr_tables.h:62
const char * name
Definition: mod_proxy.h:142
Definition: mod_proxy.h:79
proxy_worker * worker
Definition: mod_proxy.h:260
int lbfactor
Definition: mod_proxy.h:414
Definition: mod_proxy.h:82
char flag
Definition: mod_proxy.h:90
apr_port_t port
Definition: mod_proxy.h:269
struct apr_reslist_t apr_reslist_t
Definition: apr_reslist.h:42
ap_conf_vector_t * section_config
Definition: mod_proxy.h:546
int ap_proxy_connection_create(const char *proxy_function, proxy_conn_rec *conn, conn_rec *c, server_rec *s)
Definition: mod_proxy.h:178
Definition: mod_proxy.h:283
Definition: mod_proxy.h:141
apr_time_t wupdated
Definition: mod_proxy.h:503
float cache_completion
Definition: mod_proxy.h:284
int bgrowth
Definition: mod_proxy.h:161
proxy_balancer_shared * ap_proxy_find_balancershm(ap_slotmem_provider_t *storage, ap_slotmem_instance_t *slot, proxy_balancer *balancer, unsigned int *index)
struct apr_bucket_alloc_t apr_bucket_alloc_t
Definition: apr_buckets.h:123
request_rec * r
Definition: mod_proxy.h:632
proxy_conn_pool * cp
Definition: mod_proxy.h:474
const char * ssl_hostname
Definition: mod_proxy.h:276
const char * name
Definition: mod_proxy.h:550
struct apr_sockaddr_t * hostaddr
Definition: mod_proxy.h:137
Apache Provider API.
apr_interval_time_t interval
Definition: mod_proxy.h:441
const char * uds_path
Definition: mod_proxy.h:275
proxy_hashes hash
Definition: mod_proxy.h:424
apr_status_t ap_proxy_transfer_between_connections(request_rec *r, conn_rec *c_i, conn_rec *c_o, apr_bucket_brigade *bb_i, apr_bucket_brigade *bb_o, const char *name, int *sent, apr_off_t bsize, int after)
Definition: mod_proxy.h:75
proxy_balancer * balancer
Definition: mod_proxy.h:131
ap_slotmem_provider_t * storage
Definition: mod_proxy.h:185
apr_array_header_t * cookie_domains
Definition: mod_proxy.h:253
proxy_server_conf * sconf
Definition: mod_proxy.h:539
int ap_proxy_post_request(proxy_worker *worker, proxy_balancer *balancer, request_rec *r, proxy_server_conf *conf)
apr_sockaddr_t * addr
Definition: mod_proxy.h:291
int index
Definition: mod_proxy.h:505
Definition: mod_proxy.h:493
unsigned int ap_proxy_hashfunc(const char *str, proxy_hash_t method)
proxy_worker * reverse
Definition: mod_proxy.h:155
apr_array_header_t * cookie_paths
Definition: mod_proxy.h:252
Definition: mod_proxy.h:428
const char * domain
Definition: mod_proxy.h:156
apr_uint32_t flags
Definition: mod_proxy.h:268
Definition: mod_proxy.h:250
apr_status_t ap_proxy_initialize_worker(proxy_worker *worker, server_rec *s, apr_pool_t *p)
proxy_hash_t
Definition: mod_proxy.h:1121
int ap_proxy_connect_backend(const char *proxy_function, proxy_conn_rec *conn, proxy_worker *worker, server_rec *s)
Definition: mod_proxy.h:392
proxy_worker * ap_proxy_balancer_get_best_worker(proxy_balancer *balancer, request_rec *r, proxy_is_best_callback_fn_t *is_best, void *baton)
const char * real
Definition: mod_proxy.h:127
APR Standard Headers Support.
apr_status_t ap_proxy_connect_uds(apr_socket_t *sock, const char *uds_path, apr_pool_t *p)
apr_size_t busy
Definition: mod_proxy.h:445
void * context
Definition: mod_proxy.h:450
apr_interval_time_t timeout
Definition: mod_proxy.h:502
apr_size_t io_buffer_size
Definition: mod_proxy.h:443
CORE HTTP Daemon.
int fails
Definition: mod_proxy.h:422
apr_array_header_t * errstatuses
Definition: mod_proxy.h:527
char * name
Definition: mod_proxy.h:135
char * ap_proxy_define_match_worker(apr_pool_t *p, proxy_worker **worker, proxy_balancer *balancer, proxy_server_conf *conf, const char *url, int do_malloc)
int ap_proxy_is_socket_connected(apr_socket_t *socket)
Apache connection library.
int ap_proxy_connection_create_ex(const char *proxy_function, proxy_conn_rec *conn, request_rec *r)
Utilities for EBCDIC conversion.
int ap_proxy_ssl_disable(conn_rec *c)
proxy_balancer_method * lbmethod
Definition: mod_proxy.h:534
PROXY_DECLARE_DATA proxy_hcmethods_t proxy_hcmethods[]
int use_regex
Definition: mod_proxy.h:119
char * ap_proxy_canonenc(apr_pool_t *p, const char *x, int len, enum enctype t, int forcedec, int proxyreq)
const char const char * uri
Definition: mod_dav.h:614
detach_backend
Definition: mod_proxy.h:632
#define PROXY_WORKER_MAX_ROUTE_SIZE
Definition: mod_proxy.h:355
Definition: apr_buckets.h:258
const char apr_size_t dlen
Definition: mod_proxy.h:664
APR Thread Mutex Routines.
void * context
Definition: mod_proxy.h:553
Definition: mod_proxy.h:114
Definition: mod_proxy.h:79
module PROXY_DECLARE_DATA proxy_module
apr_int64_t apr_interval_time_t
Definition: apr_time.h:55
apr_time_t updated
Definition: mod_proxy.h:432
Definition: mod_proxy.h:75
Structure to store things which are per connection.
Definition: httpd.h:1124
int flush_wait
Definition: mod_proxy.h:418
APR-UTIL Resource List Routines.
#define APR_UUID_FORMATTED_LENGTH
Definition: apr_uuid.h:46
int( proxy_is_best_callback_fn_t)(proxy_worker *current, proxy_worker *prev_best, void *baton)
Definition: mod_proxy.h:873
Definition: mod_proxy.h:174
apr_status_t(* updatelbstatus)(proxy_balancer *balancer, proxy_worker *elected, server_rec *s)
Definition: mod_proxy.h:556
Virtual Host package.
APR-UTIL registration of functions exported by modules.
int fixups(request_rec *r)
apr_size_t response_field_size
Definition: mod_proxy.h:446
Symbol export macros and hook functions.
#define PROXY_MAX_PROVIDER_NAME_SIZE
Definition: mod_proxy.h:371
apr_status_t(* reset)(proxy_balancer *balancer, server_rec *s)
Definition: mod_proxy.h:554
#define PROXY_DECLARE_OPTIONAL_HOOK
Definition: mod_proxy.h:594
char * ap_proxy_parse_wstatus(apr_pool_t *p, proxy_worker *w)
apr_array_header_t * cookie_domains
Definition: mod_proxy.h:219
apr_interval_time_t timeout
Definition: mod_proxy.h:171
const char * set_worker_hc_param(apr_pool_t *, server_rec *, proxy_worker *, const char *, const char *, void *)
Definition: mod_proxy.h:146
apr_array_header_t * aliases
Definition: mod_proxy.h:149
#define PROXY_DECLARE_DATA
Definition: mod_proxy.h:573
apr_pool_t * pool
Definition: mod_proxy.h:158
Definition: mod_proxy.h:75
Definition: apr_arch_global_mutex.h:23
signed char interpolate_env
Definition: mod_proxy.h:221
int ap_proxy_conn_is_https(conn_rec *c)
apr_time_t wupdated
Definition: mod_proxy.h:533
const char *(* ap_proxy_header_reverse_map_fn)(request_rec *, proxy_dir_conf *, const char *)
Definition: mod_proxy.h:705
int req
Definition: mod_proxy.h:159
Apache Logging library.
apr_array_header_t * sec_proxy
Definition: mod_proxy.h:148
unsigned int local_status
Definition: mod_proxy.h:473
char * ap_proxy_define_balancer(apr_pool_t *p, proxy_balancer **balancer, proxy_server_conf *conf, const char *url, const char *alias, int do_malloc)
const char * hostname
Definition: mod_proxy.h:117
unsigned int status
Definition: mod_proxy.h:425
apr_int64_t apr_time_t
Definition: apr_time.h:45
Definition: mod_proxy.h:165
void * forward
Definition: mod_proxy.h:267
#define PROXY_RFC1035_HOSTNAME_SIZE
Definition: mod_proxy.h:364
Command line options.
APR-UTIL date routines.
int ap_proxy_lb_workers(void)
Definition: ap_slotmem.h:86
APR memory allocation.
APR Global Locking Routines.
int ap_proxy_pre_http_request(conn_rec *c, request_rec *r)
apr_bucket_brigade * bb
Definition: mod_dav.h:552
apr_size_t io_buffer_size
Definition: mod_proxy.h:169
const char * ap_proxy_show_hcmethod(hcmethod_t method)
Definition: mod_proxy.h:134
HTTP Daemon routines.
int ap_proxy_acquire_connection(const char *proxy_function, proxy_conn_rec **conn, proxy_worker *worker, server_rec *s)
proxy_hashes hash
Definition: mod_proxy.h:472
Apache hook functions.
Definition: mod_proxy.h:1121
#define PROXY_BALANCER_MAX_ROUTE_SIZE
Definition: mod_proxy.h:356
unsigned int flags
Definition: mod_proxy.h:130
A structure to store information for each virtual server.
Definition: httpd.h:1311
Definition: mod_proxy.h:164
void * context
Definition: mod_proxy.h:480
apr_global_mutex_t * mutex
Definition: mod_proxy.h:183
apr_time_t error_time
Definition: mod_proxy.h:433
Definition: mod_proxy.h:75
const char * p
Definition: mod_proxy.h:206
int growth
Definition: mod_proxy.h:530
int
Definition: mod_proxy.h:632
int smax
Definition: mod_proxy.h:416
apr_array_header_t * raliases
Definition: mod_proxy.h:251
Definition: mod_proxy.h:256
Definition: mod_proxy.h:398
int max_attempts
Definition: mod_proxy.h:504
apr_off_t read
Definition: mod_proxy.h:449
#define APR_DECLARE_EXTERNAL_HOOK(ns, link, ret, name, args)
Definition: apr_hooks.h:118
Definition: apr_arch_networkio.h:37
int ap_proxy_clear_connection(request_rec *r, apr_table_t *headers)
int hc_valid_expr(request_rec *, const char *)
int max_balancers
Definition: mod_proxy.h:160
const char * ap_proxy_de_socketfy(apr_pool_t *p, const char *url)
struct in_addr addr mask
Definition: mod_proxy.h:136
apr_interval_time_t ttl
Definition: mod_proxy.h:434
proxy_balancer_shared * s
Definition: mod_proxy.h:541
#define PROXY_WORKER_MAX_NAME_SIZE
Definition: mod_proxy.h:357
Definition: mod_proxy.h:525
const char * ap_proxy_ssl_val(apr_pool_t *p, server_rec *s, conn_rec *c, request_rec *r, const char *var)
Definition: ap_regex.h:107
apr_socket_t * sock
Definition: mod_proxy.h:265
apr_reslist_t * res
Definition: mod_proxy.h:292
request_rec * r
Definition: mod_proxy.h:258
const char * name
Definition: mod_proxy.h:91
APR-UTIL Buckets/Bucket Brigades.
long maxfwd
Definition: mod_proxy.h:170
Definition: mod_proxy.h:126
proxy_worker proxy_server_conf char * url
Definition: mod_proxy.h:617
APR FNMatch Functions.
proxy_worker_shared * ap_proxy_find_workershm(ap_slotmem_provider_t *storage, ap_slotmem_instance_t *slot, proxy_worker *worker, unsigned int *index)
#define PROXY_WORKER_MAX_SECRET_SIZE
Definition: mod_proxy.h:362
unsigned int apr_uint32_t
Definition: apr.h:334
hcmethod_t
Definition: mod_proxy.h:78
APR Platform Definitions.
apr_array_header_t * cookie_paths
Definition: mod_proxy.h:218
apr_port_t port
Definition: mod_proxy.h:447
APR MD5 Routines.
APR general purpose library routines.
#define PROXY_WORKER_MAX_HOSTNAME_SIZE
Definition: mod_proxy.h:359
APR-UTIL string matching routines.
#define PROXY_BALANCER_MAX_STICKY_SIZE
Definition: mod_proxy.h:361
int ap_proxyerror(request_rec *r, int statuscode, const char *message)
void * context
Definition: mod_proxy.h:540
const char * ap_proxy_location_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *url)
apr_status_t ap_proxy_buckets_lifetime_transform(request_rec *r, apr_bucket_brigade *from, apr_bucket_brigade *to)
struct apr_sockaddr_t * addr
Definition: mod_proxy.h:143
int ap_proxy_release_connection(const char *proxy_function, proxy_conn_rec *conn, server_rec *s)
void ap_proxy_backend_broke(request_rec *r, apr_bucket_brigade *brigade)
apr_interval_time_t timeout
Definition: mod_proxy.h:437
Definition: mod_proxy.h:75
void ap_proxy_c2hex(int ch, char *x)
HTTP protocol handling.
int pcount
Definition: mod_proxy.h:421
Definition: apr_uri.h:85
apr_array_header_t * workers
Definition: mod_proxy.h:152
apr_pool_t * p
#define PROXY_BALANCER_MAX_NAME_SIZE
Definition: mod_proxy.h:358
ap_slotmem_provider_t * storage
Definition: mod_proxy.h:529
proxy_conn_rec * conn
Definition: mod_proxy.h:293
int ap_proxy_ssl_engine(conn_rec *c, ap_conf_vector_t *per_dir_config, int enable)
Apache Mutex support library.
char * ap_proxy_canon_netloc(apr_pool_t *p, char **const urlp, char **userp, char **passwordp, char **hostp, apr_port_t *port)
int content_length
Definition: mod_proxy.h:285
apr_array_header_t * workers
Definition: mod_proxy.h:526
int implemented
Definition: mod_proxy.h:85
apr_interval_time_t acquire
Definition: mod_proxy.h:438
apr_global_mutex_t * gmutex
Definition: mod_proxy.h:536
apr_off_t transferred
Definition: mod_proxy.h:448
Definition: mod_proxy.h:1121
apr_sockaddr_t * source_address
Definition: mod_proxy.h:182
apr_pool_t * scpool
Definition: mod_proxy.h:264
struct proxy_alias * alias
Definition: mod_proxy.h:222
Apache Request library.
apr_status_t ap_proxy_sync_balancer(proxy_balancer *b, server_rec *s, proxy_server_conf *conf)
A structure that represents the current request.
Definition: httpd.h:811
Definition: mod_proxy.h:163
int retries
Definition: mod_proxy.h:412
int fcount
Definition: mod_proxy.h:423
Apache filter library.
const char * hostname
Definition: mod_proxy.h:262
APR Strings library.
proxy_worker * forward
Definition: mod_proxy.h:154
enctype
Definition: mod_proxy.h:74
apr_port_t port
Definition: mod_proxy.h:120
int passes
Definition: mod_proxy.h:420
int lbset
Definition: mod_proxy.h:411
dav_buffer const char * str
Definition: mod_dav.h:461
Definition: mod_proxy.h:179
apr_interval_time_t retry
Definition: mod_proxy.h:436
const char * id
Definition: mod_proxy.h:157
int status
Definition: mod_dav.h:141
#define PROXY_DECLARE(type)
Definition: mod_proxy.h:571
int ap_proxy_connection_reusable(proxy_conn_rec *conn)
Definition: mod_proxy.h:173
char * name
Definition: mod_proxy.h:84
apr_interval_time_t ping_timeout
Definition: mod_proxy.h:439
struct apr_table_t apr_table_t
Definition: apr_tables.h:56
unsigned int bit
Definition: mod_proxy.h:89
#define PROXY_BALANCER_MAX_HOSTNAME_SIZE
Definition: mod_proxy.h:360
int(* matcher)(struct dirconn_entry *This, request_rec *r)
Definition: mod_proxy.h:138
const char * name
Definition: mod_dav.h:726
int ap_proxy_hex2c(const char *x)
int ap_proxy_create_hdrbrgd(apr_pool_t *p, apr_bucket_brigade *header_brigade, request_rec *r, proxy_conn_rec *p_conn, proxy_worker *worker, proxy_server_conf *conf, apr_uri_t *uri, char *url, char *server_portstr, char **old_cl_val, char **old_te_val)
const char * scheme
Definition: mod_proxy.h:115
apr_thread_mutex_t * tmutex
Definition: mod_proxy.h:537
Definition: mod_proxy.h:289
apr_status_t(* age)(proxy_balancer *balancer, server_rec *s)
Definition: mod_proxy.h:555
ap_slotmem_instance_t * bslot
Definition: mod_proxy.h:184
int index
Definition: mod_proxy.h:419
apr_bucket_brigade * tmp_bb
Definition: mod_proxy.h:277
struct apr_pool_t apr_pool_t
Definition: apr_pools.h:60
Definition: mod_proxy.h:79
conn_rec * connection
Definition: mod_proxy.h:257
int ap_proxy_pre_request(proxy_worker **worker, proxy_balancer **balancer, request_rec *r, proxy_server_conf *conf, char **url)
unsigned int lbmethod_set
Definition: mod_proxy.h:545
Definition: http_config.h:355
const char * ap_proxy_cookie_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *str)
hcmethod_t method
Definition: mod_proxy.h:83
int apr_status_t
Definition: apr_errno.h:44
Definition: mod_proxy.h:79
#define APR_DECLARE_OPTIONAL_FN(ret, name, args)
Definition: apr_optional.h:50
proxy_hashes hash
Definition: mod_proxy.h:506
Definition: mod_proxy.h:79
Definition: mod_proxy.h:471
apr_status_t ap_proxy_initialize_balancer(proxy_balancer *balancer, server_rec *s, apr_pool_t *p)
int failontimeout
Definition: mod_proxy.h:542
apr_pool_t * pool
Definition: mod_proxy.h:290
int ap_proxy_determine_connection(apr_pool_t *p, request_rec *r, proxy_server_conf *conf, proxy_worker *worker, proxy_conn_rec *conn, apr_uri_t *uri, char **url, const char *proxyname, apr_port_t proxyport, char *server_portstr, int server_portstr_size)
#define PROXY_WORKER_MAX_SCHEME_SIZE
Definition: mod_proxy.h:354
const char * fake
Definition: mod_proxy.h:128
APR-UTIL URI Routines.
apr_uint16_t apr_port_t
Definition: apr_network_io.h:257
ap_conf_vector_t * section_config
Definition: mod_proxy.h:481
Definition: mod_proxy.h:88
void * data
Definition: mod_proxy.h:266
apr_thread_mutex_t * tmutex
Definition: mod_proxy.h:478
int lbstatus
Definition: mod_proxy.h:413
apr_array_header_t * balancers
Definition: mod_proxy.h:153
Definition: mod_proxy.h:79
proxy_worker proxy_server_conf * conf
Definition: mod_proxy.h:617
apr_size_t recv_buffer_size
Definition: mod_proxy.h:442
Definition: mod_proxy.h:79
Definition: mod_proxy.h:205
unsigned int def
Definition: mod_proxy.h:393
struct ap_conf_vector_t ap_conf_vector_t
Definition: http_config.h:519
hcmethod_t method
Definition: mod_proxy.h:431
apr_interval_time_t conn_timeout
Definition: mod_proxy.h:440
proxy_worker * worker
Definition: mod_proxy.h:617
apr_status_t ap_proxy_ssl_connection_cleanup(proxy_conn_rec *conn, request_rec *r)
apr_array_header_t * raliases
Definition: mod_proxy.h:217
apr_array_header_t * proxies
Definition: mod_proxy.h:147
dav_resource int dav_locktoken dav_response int flags
Definition: mod_dav.h:1346
apr_array_header_t * refs
Definition: mod_proxy.h:241
proxy_balancer * balancer
Definition: mod_proxy.h:476
char * ap_proxy_update_balancer(apr_pool_t *p, proxy_balancer *balancer, const char *url)
ap_regex_t * r
Definition: mod_proxy.h:207
int max_workers
Definition: mod_proxy.h:531
Definition: mod_proxy.h:1121
apr_status_t ap_proxy_share_worker(proxy_worker *worker, proxy_worker_shared *shm, int i)
PROXY
Definition: mod_proxy.h:632
apr_status_t ap_proxy_set_wstatus(char c, int set, proxy_worker *w)
char * ap_proxy_define_worker(apr_pool_t *p, proxy_worker **worker, proxy_balancer *balancer, proxy_server_conf *conf, const char *url, int do_malloc)
apr_status_t ap_proxy_share_balancer(proxy_balancer *balancer, proxy_balancer_shared *shm, int i)
int ap_proxy_valid_balancer_name(char *name, int i)
Definition: mod_proxy.h:549
unsigned int failontimeout_set
Definition: mod_proxy.h:543
proxy_worker * proxy_balancer_get_best_worker(proxy_balancer *balancer, request_rec *r, proxy_is_best_callback_fn_t *is_best, void *baton)
apr_array_header_t * noproxies
Definition: mod_proxy.h:150
Definition: mod_proxy.h:427
off_t apr_off_t
Definition: apr.h:377
Memory Slot Extension Storage Module for Apache.
proxy_hashes hash
Definition: mod_proxy.h:532
proxy_worker * ap_proxy_get_worker(apr_pool_t *p, proxy_balancer *balancer, proxy_server_conf *conf, const char *url)
ap_slotmem_instance_t * wslot
Definition: mod_proxy.h:528
proxy_worker proxy_server_conf char const char * proxyhost
Definition: mod_proxy.h:617
Definition: apr_network_io.h:266
apr_array_header_t * dirconn
Definition: mod_proxy.h:151
signed char p_is_fnmatch
Definition: mod_proxy.h:220
Definition: mod_proxy.h:79
char sticky_separator
Definition: mod_proxy.h:515
PROXY_DECLARE_DATA proxy_wstat_t proxy_wstat_tbl[]
apr_status_t ap_proxy_check_connection(const char *scheme, proxy_conn_rec *conn, server_rec *server, unsigned max_blank_lines, int flags)
const char * src
Definition: mod_proxy.h:664
apr_size_t elected
Definition: mod_proxy.h:444