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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 
244 
245 /* if we interpolate env vars per-request, we'll need a per-request
246  * copy of the reverse proxy config
247  */
248 typedef struct {
253 
254 typedef struct {
256  request_rec *r; /* Request record of the backend request
257  * that is used over the backend connection. */
258  proxy_worker *worker; /* Connection pool this connection belongs to */
259  apr_pool_t *pool; /* Subpool for hostname and addr data */
260  const char *hostname;
261  apr_sockaddr_t *addr; /* Preparsed remote address info */
262  apr_pool_t *scpool; /* Subpool used for socket and connection data */
263  apr_socket_t *sock; /* Connection socket */
264  void *data; /* per scheme connection data */
265  void *forward; /* opaque forward proxy data */
266  apr_uint32_t flags; /* Connection flags */
268  unsigned int is_ssl:1;
269  unsigned int close:1; /* Close 'this' connection */
270  unsigned int need_flush:1; /* Flag to decide whether we need to flush the
271  * filter chain or not */
272  unsigned int inreslist:1; /* connection in apr_reslist? */
273  const char *uds_path; /* Unix domain socket path */
274  const char *ssl_hostname;/* Hostname (SNI) in use by SSL connection */
275  apr_bucket_brigade *tmp_bb;/* Temporary brigade created with the connection
276  * and its scpool/bucket_alloc (NULL before),
277  * must be left cleaned when used (locally).
278  */
280 
281 typedef struct {
282  float cache_completion; /* completion percentage */
283  int content_length; /* length of the content */
285 
286 /* Connection pool */
288  apr_pool_t *pool; /* The pool used in constructor and destructor calls */
289  apr_sockaddr_t *addr; /* Preparsed remote address info */
290  apr_reslist_t *res; /* Connection resource list */
291  proxy_conn_rec *conn; /* Single connection for prefork mpm */
292 };
293 
294 /* worker status bits */
295 /*
296  * NOTE: Keep up-to-date w/ proxy_wstat_tbl[]
297  * in mod_proxy.c !
298  */
299 #define PROXY_WORKER_INITIALIZED 0x0001
300 #define PROXY_WORKER_IGNORE_ERRORS 0x0002
301 #define PROXY_WORKER_DRAIN 0x0004
302 #define PROXY_WORKER_GENERIC 0x0008
303 #define PROXY_WORKER_IN_SHUTDOWN 0x0010
304 #define PROXY_WORKER_DISABLED 0x0020
305 #define PROXY_WORKER_STOPPED 0x0040
306 #define PROXY_WORKER_IN_ERROR 0x0080
307 #define PROXY_WORKER_HOT_STANDBY 0x0100
308 #define PROXY_WORKER_FREE 0x0200
309 #define PROXY_WORKER_HC_FAIL 0x0400
310 #define PROXY_WORKER_HOT_SPARE 0x0800
311 
312 /* worker status flags */
313 #define PROXY_WORKER_INITIALIZED_FLAG 'O'
314 #define PROXY_WORKER_IGNORE_ERRORS_FLAG 'I'
315 #define PROXY_WORKER_DRAIN_FLAG 'N'
316 #define PROXY_WORKER_GENERIC_FLAG 'G'
317 #define PROXY_WORKER_IN_SHUTDOWN_FLAG 'U'
318 #define PROXY_WORKER_DISABLED_FLAG 'D'
319 #define PROXY_WORKER_STOPPED_FLAG 'S'
320 #define PROXY_WORKER_IN_ERROR_FLAG 'E'
321 #define PROXY_WORKER_HOT_STANDBY_FLAG 'H'
322 #define PROXY_WORKER_FREE_FLAG 'F'
323 #define PROXY_WORKER_HC_FAIL_FLAG 'C'
324 #define PROXY_WORKER_HOT_SPARE_FLAG 'R'
325 
326 #define PROXY_WORKER_NOT_USABLE_BITMAP ( PROXY_WORKER_IN_SHUTDOWN | \
327 PROXY_WORKER_DISABLED | PROXY_WORKER_STOPPED | PROXY_WORKER_IN_ERROR | \
328 PROXY_WORKER_HC_FAIL )
329 
330 /* NOTE: these check the shared status */
331 #define PROXY_WORKER_IS_INITIALIZED(f) ( (f)->s->status & PROXY_WORKER_INITIALIZED )
332 
333 #define PROXY_WORKER_IS_STANDBY(f) ( (f)->s->status & PROXY_WORKER_HOT_STANDBY )
334 
335 #define PROXY_WORKER_IS_SPARE(f) ( (f)->s->status & PROXY_WORKER_HOT_SPARE )
336 
337 #define PROXY_WORKER_IS_USABLE(f) ( ( !( (f)->s->status & PROXY_WORKER_NOT_USABLE_BITMAP) ) && \
338  PROXY_WORKER_IS_INITIALIZED(f) )
339 
340 #define PROXY_WORKER_IS_DRAINING(f) ( (f)->s->status & PROXY_WORKER_DRAIN )
341 
342 #define PROXY_WORKER_IS_GENERIC(f) ( (f)->s->status & PROXY_WORKER_GENERIC )
343 
344 #define PROXY_WORKER_IS_HCFAILED(f) ( (f)->s->status & PROXY_WORKER_HC_FAIL )
345 
346 #define PROXY_WORKER_IS(f, b) ( (f)->s->status & (b) )
347 
348 /* default worker retry timeout in seconds */
349 #define PROXY_WORKER_DEFAULT_RETRY 60
350 
351 /* Some max char string sizes, for shm fields */
352 #define PROXY_WORKER_MAX_SCHEME_SIZE 16
353 #define PROXY_WORKER_MAX_ROUTE_SIZE 96
354 #define PROXY_BALANCER_MAX_ROUTE_SIZE 64
355 #define PROXY_WORKER_MAX_NAME_SIZE 256
356 #define PROXY_BALANCER_MAX_NAME_SIZE 64
357 #define PROXY_WORKER_MAX_HOSTNAME_SIZE 96
358 #define PROXY_BALANCER_MAX_HOSTNAME_SIZE 64
359 #define PROXY_BALANCER_MAX_STICKY_SIZE 64
360 #define PROXY_WORKER_MAX_SECRET_SIZE 64
361 
362 #define PROXY_RFC1035_HOSTNAME_SIZE 256
363 
364 /* RFC-1035 mentions limits of 255 for host-names and 253 for domain-names,
365  * dotted together(?) this would fit the below size (+ trailing NUL).
366  */
367 #define PROXY_WORKER_RFC1035_NAME_SIZE 512
368 
369 #define PROXY_MAX_PROVIDER_NAME_SIZE 16
370 
371 #define PROXY_STRNCPY(dst, src) ap_proxy_strncpy((dst), (src), (sizeof(dst)))
372 
373 #define PROXY_COPY_CONF_PARAMS(w, c) \
374 do { \
375 (w)->s->timeout = (c)->timeout; \
376 (w)->s->timeout_set = (c)->timeout_set; \
377 (w)->s->recv_buffer_size = (c)->recv_buffer_size; \
378 (w)->s->recv_buffer_size_set = (c)->recv_buffer_size_set; \
379 (w)->s->io_buffer_size = (c)->io_buffer_size; \
380 (w)->s->io_buffer_size_set = (c)->io_buffer_size_set; \
381 } while (0)
382 
383 #define PROXY_DO_100_CONTINUE(w, r) \
384 ((w)->s->ping_timeout_set \
385  && (PROXYREQ_REVERSE == (r)->proxyreq) \
386  && !(apr_table_get((r)->subprocess_env, "force-proxy-request-1.0")) \
387  && ap_request_has_body((r)))
388 
389 /* use 2 hashes */
390 typedef struct {
391  unsigned int def;
392  unsigned int fnv;
393 } proxy_hashes ;
394 
395 /* Runtime worker status information. Shared in scoreboard */
396 typedef struct {
398  char scheme[PROXY_WORKER_MAX_SCHEME_SIZE]; /* scheme to use ajp|http|https */
399  char hostname[PROXY_WORKER_MAX_HOSTNAME_SIZE]; /* remote backend address (deprecated, use hostname_ex below) */
400  char route[PROXY_WORKER_MAX_ROUTE_SIZE]; /* balancing route */
401  char redirect[PROXY_WORKER_MAX_ROUTE_SIZE]; /* temporary balancing redirection route */
402  char flusher[PROXY_WORKER_MAX_SCHEME_SIZE]; /* flush provider used by mod_proxy_fdpass */
403  char uds_path[PROXY_WORKER_MAX_NAME_SIZE]; /* path to worker's unix domain socket if applicable */
404  char hcuri[PROXY_WORKER_MAX_ROUTE_SIZE]; /* health check uri */
405  char hcexpr[PROXY_WORKER_MAX_SCHEME_SIZE]; /* name of condition expr for health check */
406  int lbset; /* load balancer cluster set */
407  int retries; /* number of retries on this worker */
408  int lbstatus; /* Current lbstatus */
409  int lbfactor; /* dynamic lbfactor */
410  int min; /* Desired minimum number of available connections */
411  int smax; /* Soft maximum on the total number of connections */
412  int hmax; /* Hard maximum on the total number of connections */
413  int flush_wait; /* poll wait time in microseconds if flush_auto */
414  int index; /* shm array index */
415  int passes; /* number of successes for check to pass */
416  int pcount; /* current count of passes */
417  int fails; /* number of failures for check to fail */
418  int fcount; /* current count of failures */
419  proxy_hashes hash; /* hash of worker name */
420  unsigned int status; /* worker status bitfield */
421  enum {
424  flush_auto
425  } flush_packets; /* control AJP flushing */
426  hcmethod_t method; /* method to use for health check */
427  apr_time_t updated; /* timestamp of last update */
428  apr_time_t error_time; /* time of the last error */
429  apr_interval_time_t ttl; /* maximum amount of time in seconds a connection
430  * may be available while exceeding the soft limit */
431  apr_interval_time_t retry; /* retry interval */
432  apr_interval_time_t timeout; /* connection timeout */
433  apr_interval_time_t acquire; /* acquire timeout when the maximum number of connections is exceeded */
439  apr_size_t elected; /* Number of times the worker was elected */
440  apr_size_t busy; /* busyness factor */
442  apr_off_t transferred;/* Number of bytes transferred to remote */
443  apr_off_t read; /* Number of bytes read from remote */
444  void *context; /* general purpose storage */
445  unsigned int keepalive:1;
446  unsigned int disablereuse:1;
447  unsigned int is_address_reusable:1;
448  unsigned int retry_set:1;
449  unsigned int timeout_set:1;
450  unsigned int acquire_set:1;
451  unsigned int ping_timeout_set:1;
452  unsigned int conn_timeout_set:1;
453  unsigned int recv_buffer_size_set:1;
454  unsigned int io_buffer_size_set:1;
455  unsigned int keepalive_set:1;
456  unsigned int disablereuse_set:1;
457  unsigned int was_malloced:1;
458  unsigned int is_name_matchable:1;
459  char secret[PROXY_WORKER_MAX_SECRET_SIZE]; /* authentication secret (e.g. AJP13) */
460  char upgrade[PROXY_WORKER_MAX_SCHEME_SIZE];/* upgrade protocol used by mod_proxy_wstunnel */
461  char hostname_ex[PROXY_RFC1035_HOSTNAME_SIZE]; /* RFC1035 compliant version of the remote backend address */
462  apr_size_t response_field_size; /* Size of proxy response buffer in bytes. */
463  unsigned int response_field_size_set:1;
465 
466 #define ALIGNED_PROXY_WORKER_SHARED_SIZE (APR_ALIGN_DEFAULT(sizeof(proxy_worker_shared)))
467 
468 /* Worker configuration */
469 struct proxy_worker {
470  proxy_hashes hash; /* hash of worker name */
471  unsigned int local_status; /* status of per-process worker */
472  proxy_conn_pool *cp; /* Connection pool to use */
473  proxy_worker_shared *s; /* Shared data */
474  proxy_balancer *balancer; /* which balancer am I in? */
475  apr_thread_mutex_t *tmutex; /* Thread lock for updating address cache */
476  void *context; /* general purpose storage */
477  ap_conf_vector_t *section_config; /* <Proxy>-section wherein defined */
478 };
479 
480 /* default to health check every 30 seconds */
481 #define HCHECK_WATHCHDOG_DEFAULT_INTERVAL (30)
482 
483 /*
484  * Time to wait (in microseconds) to find out if more data is currently
485  * available at the backend.
486  */
487 #define PROXY_FLUSH_WAIT 10000
488 
489 typedef struct {
490  char sticky_path[PROXY_BALANCER_MAX_STICKY_SIZE]; /* URL sticky session identifier */
491  char sticky[PROXY_BALANCER_MAX_STICKY_SIZE]; /* sticky session identifier */
492  char lbpname[PROXY_MAX_PROVIDER_NAME_SIZE]; /* lbmethod provider name */
493  char nonce[APR_UUID_FORMATTED_LENGTH + 1];
498  apr_interval_time_t timeout; /* Timeout for waiting on free connection */
499  apr_time_t wupdated; /* timestamp of last change to workers list */
500  int max_attempts; /* Number of attempts before failing */
501  int index; /* shm array index */
503  unsigned int sticky_force:1; /* Disable failover for sticky sessions */
504  unsigned int scolonsep:1; /* true if ';' seps sticky session paths */
505  unsigned int max_attempts_set:1;
506  unsigned int was_malloced:1;
507  unsigned int need_reset:1;
508  unsigned int vhosted:1;
509  unsigned int inactive:1;
510  unsigned int forcerecovery:1;
511  char sticky_separator; /* separator for sessionid/route */
512  unsigned int forcerecovery_set:1;
513  unsigned int scolonsep_set:1;
514  unsigned int sticky_force_set:1;
515  unsigned int nonce_set:1;
516  unsigned int sticky_separator_set:1;
518 
519 #define ALIGNED_PROXY_BALANCER_SHARED_SIZE (APR_ALIGN_DEFAULT(sizeof(proxy_balancer_shared)))
520 
522  apr_array_header_t *workers; /* initially configured workers */
523  apr_array_header_t *errstatuses; /* statuses to force members into error */
524  ap_slotmem_instance_t *wslot; /* worker shm data - runtime */
526  int growth; /* number of post-config workers can added */
527  int max_workers; /* maximum number of allowed workers */
529  apr_time_t wupdated; /* timestamp of last change to workers list */
531  apr_global_mutex_t *gmutex; /* global lock for updating list of workers */
532  apr_thread_mutex_t *tmutex; /* Thread lock for updating shm */
534  void *context; /* general purpose storage */
535  proxy_balancer_shared *s; /* Shared data */
536  int failontimeout; /* Whether to mark a member in Err if IO timeout occurs */
537  unsigned int failontimeout_set:1;
538  unsigned int growth_set:1;
539  unsigned int lbmethod_set:1;
540  ap_conf_vector_t *section_config; /* <Proxy>-section wherein defined */
541 };
542 
544  const char *name; /* name of the load balancer method*/
545  proxy_worker *(*finder)(proxy_balancer *balancer,
546  request_rec *r);
547  void *context; /* general purpose storage */
551 };
552 
553 #define PROXY_THREAD_LOCK(x) ( (x) && (x)->tmutex ? apr_thread_mutex_lock((x)->tmutex) : APR_SUCCESS)
554 #define PROXY_THREAD_UNLOCK(x) ( (x) && (x)->tmutex ? apr_thread_mutex_unlock((x)->tmutex) : APR_SUCCESS)
555 
556 #define PROXY_GLOBAL_LOCK(x) ( (x) && (x)->gmutex ? apr_global_mutex_lock((x)->gmutex) : APR_SUCCESS)
557 #define PROXY_GLOBAL_UNLOCK(x) ( (x) && (x)->gmutex ? apr_global_mutex_unlock((x)->gmutex) : APR_SUCCESS)
558 
559 /* hooks */
560 
561 /* Create a set of PROXY_DECLARE(type), PROXY_DECLARE_NONSTD(type) and
562  * PROXY_DECLARE_DATA with appropriate export and import tags for the platform
563  */
564 #if !defined(WIN32)
565 #define PROXY_DECLARE(type) type
566 #define PROXY_DECLARE_NONSTD(type) type
567 #define PROXY_DECLARE_DATA
568 #elif defined(PROXY_DECLARE_STATIC)
569 #define PROXY_DECLARE(type) type __stdcall
570 #define PROXY_DECLARE_NONSTD(type) type
571 #define PROXY_DECLARE_DATA
572 #elif defined(PROXY_DECLARE_EXPORT)
573 #define PROXY_DECLARE(type) __declspec(dllexport) type __stdcall
574 #define PROXY_DECLARE_NONSTD(type) __declspec(dllexport) type
575 #define PROXY_DECLARE_DATA __declspec(dllexport)
576 #else
577 #define PROXY_DECLARE(type) __declspec(dllimport) type __stdcall
578 #define PROXY_DECLARE_NONSTD(type) __declspec(dllimport) type
579 #define PROXY_DECLARE_DATA __declspec(dllimport)
580 #endif
581 
582 /* Using PROXY_DECLARE_OPTIONAL_HOOK instead of
583  * APR_DECLARE_EXTERNAL_HOOK allows build/make_nw_export.awk
584  * to distinguish between hooks that implement
585  * proxy_hook_xx and proxy_hook_get_xx in mod_proxy.c and
586  * those which don't.
587  */
588 #define PROXY_DECLARE_OPTIONAL_HOOK APR_DECLARE_EXTERNAL_HOOK
589 
590 
591 /* These 2 are in mod_proxy.c */
594 
595 /* Following 4 from health check */
597 APR_DECLARE_OPTIONAL_FN(void, hc_select_exprs, (request_rec *, const char *));
598 APR_DECLARE_OPTIONAL_FN(int, hc_valid_expr, (request_rec *, const char *));
601  const char *, const char *, void *));
602 
603 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, section_post_config,
604  (apr_pool_t *p, apr_pool_t *plog,
605  apr_pool_t *ptemp, server_rec *s,
606  ap_conf_vector_t *section_config))
607 
608 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, scheme_handler,
610  proxy_server_conf *conf, char *url,
612 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, canon_handler,
613  (request_rec *r, char *url))
614 
615 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, create_req,
616  (request_rec *r, request_rec *pr))
618 
619 
620 
627  (request_rec *r, proxy_conn_rec *backend))
628 
637 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, pre_request,
638  (proxy_worker **worker, proxy_balancer **balancer,
639  request_rec *r, proxy_server_conf *conf, char **url))
644 APR_DECLARE_EXTERNAL_HOOK(proxy, PROXY, int, post_request,
645  (proxy_worker *worker, proxy_balancer *balancer,
646  request_rec *r, proxy_server_conf *conf))
647 
653 PROXY_DECLARE_OPTIONAL_HOOK(proxy, PROXY, int, request_status,
654  (int *status, request_rec *r))
655 
656 /* proxy_util.c */
657 
658 PROXY_DECLARE(apr_status_t) ap_proxy_strncpy(char *dst, const char *src,
659  apr_size_t dlen);
660 PROXY_DECLARE(int) ap_proxy_hex2c(const char *x);
661 PROXY_DECLARE(void) ap_proxy_c2hex(int ch, char *x);
662 PROXY_DECLARE(char *)ap_proxy_canonenc(apr_pool_t *p, const char *x, int len, enum enctype t,
663  int forcedec, int proxyreq);
664 PROXY_DECLARE(char *)ap_proxy_canon_netloc(apr_pool_t *p, char **const urlp, char **userp,
665  char **passwordp, char **hostp, apr_port_t *port);
666 PROXY_DECLARE(int) ap_proxyerror(request_rec *r, int statuscode, const char *message);
667 
677  const char *hostname, apr_sockaddr_t *addr);
678 
679 
681 /* DEPRECATED (will be replaced with ap_proxy_connect_backend */
683 /* DEPRECATED (will be replaced with ap_proxy_check_connection */
685  request_rec *r);
689  ap_conf_vector_t *per_dir_config,
690  int enable);
692 PROXY_DECLARE(const char *) ap_proxy_ssl_val(apr_pool_t *p, server_rec *s, conn_rec *c, request_rec *r, const char *var);
693 
694 /* Header mapping functions, and a typedef of their signature */
695 PROXY_DECLARE(const char *) ap_proxy_location_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *url);
696 PROXY_DECLARE(const char *) ap_proxy_cookie_reverse_map(request_rec *r, proxy_dir_conf *conf, const char *str);
697 
698 #if !defined(WIN32)
699 typedef const char *(*ap_proxy_header_reverse_map_fn)(request_rec *,
700  proxy_dir_conf *, const char *);
701 #elif defined(PROXY_DECLARE_STATIC)
702 typedef const char *(__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
703  proxy_dir_conf *, const char *);
704 #elif defined(PROXY_DECLARE_EXPORT)
705 typedef __declspec(dllexport) const char *
706  (__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
707  proxy_dir_conf *, const char *);
708 #else
709 typedef __declspec(dllimport) const char *
710  (__stdcall *ap_proxy_header_reverse_map_fn)(request_rec *,
711  proxy_dir_conf *, const char *);
712 #endif
713 
714 
715 /* Connection pool API */
724  proxy_worker *worker);
725 
735  proxy_balancer *balancer,
736  proxy_server_conf *conf,
737  const char *url);
749  proxy_worker **worker,
750  proxy_balancer *balancer,
751  proxy_server_conf *conf,
752  const char *url,
753  int do_malloc);
754 
767  proxy_worker **worker,
768  proxy_balancer *balancer,
769  proxy_server_conf *conf,
770  const char *url,
771  int do_malloc);
772 
781  proxy_worker_shared *shm,
782  int i);
783 
792  server_rec *s,
793  apr_pool_t *p);
794 
802 
803 
813  proxy_server_conf *conf,
814  const char *url,
815  int careactive);
816 
825  proxy_balancer *balancer,
826  const char *url);
827 
839  proxy_balancer **balancer,
840  proxy_server_conf *conf,
841  const char *url,
842  const char *alias,
843  int do_malloc);
844 
854  int i);
855 
864  server_rec *s,
865  apr_pool_t *p);
866 
867 typedef int (proxy_is_best_callback_fn_t)(proxy_worker *current, proxy_worker *prev_best, void *baton);
868 
880  request_rec *r,
882  void *baton);
883 
893  ap_slotmem_instance_t *slot,
894  proxy_worker *worker,
895  unsigned int *index);
896 
906  ap_slotmem_instance_t *slot,
907  proxy_balancer *balancer,
908  unsigned int *index);
909 
922  proxy_balancer **balancer,
923  request_rec *r,
924  proxy_server_conf *conf,
925  char **url);
937  proxy_balancer *balancer,
938  request_rec *r,
939  proxy_server_conf *conf);
940 
958  proxy_server_conf *conf,
959  proxy_worker *worker,
960  proxy_conn_rec *conn,
961  apr_uri_t *uri,
962  char **url,
963  const char *proxyname,
965  char *server_portstr,
966  int server_portstr_size);
967 
978  (const char *proxy_function, proxy_worker *worker, server_rec *s));
979 
991 PROXY_DECLARE(int) ap_proxy_acquire_connection(const char *proxy_function,
992  proxy_conn_rec **conn,
993  proxy_worker *worker,
994  server_rec *s);
1003 PROXY_DECLARE(int) ap_proxy_release_connection(const char *proxy_function,
1004  proxy_conn_rec *conn,
1005  server_rec *s);
1006 
1007 #define PROXY_CHECK_CONN_EMPTY (1 << 0)
1008 
1023  proxy_conn_rec *conn,
1024  server_rec *server,
1025  unsigned max_blank_lines,
1026  int flags);
1027 
1038 PROXY_DECLARE(int) ap_proxy_connect_backend(const char *proxy_function,
1039  proxy_conn_rec *conn,
1040  proxy_worker *worker,
1041  server_rec *s);
1042 
1050 PROXY_DECLARE(apr_status_t) ap_proxy_connect_uds(apr_socket_t *sock,
1051  const char *uds_path,
1052  apr_pool_t *p);
1063 PROXY_DECLARE(int) ap_proxy_connection_create(const char *proxy_function,
1064  proxy_conn_rec *conn,
1065  conn_rec *c, server_rec *s);
1066 
1076 PROXY_DECLARE(int) ap_proxy_connection_create_ex(const char *proxy_function,
1077  proxy_conn_rec *conn,
1078  request_rec *r);
1088 
1097 PROXY_DECLARE(void) ap_proxy_backend_broke(request_rec *r,
1098  apr_bucket_brigade *brigade);
1099 
1108 
1109 PROXY_DECLARE(unsigned int) ap_proxy_hashfunc(const char *str, proxy_hash_t method);
1110 
1111 
1120 
1121 
1129 
1130 
1139  server_rec *s,
1140  proxy_server_conf *conf);
1141 
1142 
1150 PROXY_DECLARE(int) ap_proxy_trans_match(request_rec *r,
1151  struct proxy_alias *ent,
1152  proxy_dir_conf *dconf);
1153 
1170  apr_bucket_brigade *header_brigade,
1171  request_rec *r,
1172  proxy_conn_rec *p_conn,
1173  proxy_worker *worker,
1174  proxy_server_conf *conf,
1175  apr_uri_t *uri,
1176  char *url, char *server_portstr,
1177  char **old_cl_val,
1178  char **old_te_val);
1179 
1190  request_rec *r, proxy_conn_rec *p_conn,
1191  conn_rec *origin, apr_bucket_brigade *bb,
1192  int flush);
1193 
1202  (request_rec *r, apr_table_t *headers));
1203 
1204 
1210 
1211 #define PROXY_LBMETHOD "proxylbmethod"
1212 
1213 /* The number of dynamic workers that can be added when reconfiguring.
1214  * If this limit is reached you must stop and restart the server.
1215  */
1216 #define PROXY_DYNAMIC_BALANCER_LIMIT 16
1217 
1222 int ap_proxy_lb_workers(void);
1223 
1229 PROXY_DECLARE(apr_port_t) ap_proxy_port_of_scheme(const char *scheme);
1230 
1236 PROXY_DECLARE (const char *) ap_proxy_show_hcmethod(hcmethod_t method);
1237 
1244 PROXY_DECLARE(const char *) ap_proxy_de_socketfy(apr_pool_t *p, const char *url);
1245 
1246 /*
1247  * Transform buckets from one bucket allocator to another one by creating a
1248  * transient bucket for each data bucket and let it use the data read from
1249  * the old bucket. Metabuckets are transformed by just recreating them.
1250  * Attention: Currently only the following bucket types are handled:
1251  *
1252  * All data buckets
1253  * FLUSH
1254  * EOS
1255  *
1256  * If an other bucket type is found its type is logged as a debug message
1257  * and APR_EGENERAL is returned.
1258  *
1259  * @param r request_rec of the actual request. Used for logging purposes
1260  * @param from the bucket brigade to take the buckets from
1261  * @param to the bucket brigade to store the transformed buckets
1262  * @return apr_status_t of the operation. Either APR_SUCCESS or
1263  * APR_EGENERAL
1264  */
1266  apr_bucket_brigade *from,
1267  apr_bucket_brigade *to);
1268 
1269 /*
1270  * Sends all data that can be read non blocking from the input filter chain of
1271  * c_i and send it down the output filter chain of c_o. For reading it uses
1272  * the bucket brigade bb_i which should be created from the bucket allocator
1273  * associated with c_i. For sending through the output filter chain it uses
1274  * the bucket brigade bb_o which should be created from the bucket allocator
1275  * associated with c_o. In order to get the buckets from bb_i to bb_o
1276  * ap_proxy_buckets_lifetime_transform is used.
1277  *
1278  * @param r request_rec of the actual request. Used for logging purposes
1279  * @param c_i inbound connection conn_rec
1280  * @param c_o outbound connection conn_rec
1281  * @param bb_i bucket brigade for pulling data from the inbound connection
1282  * @param bb_o bucket brigade for sending data through the outbound connection
1283  * @param name string for logging from where data was pulled
1284  * @param sent if not NULL will be set to 1 if data was sent through c_o
1285  * @param bsize maximum amount of data pulled in one iteration from c_i
1286  * @param after if set flush data on c_o only once after the loop
1287  * @return apr_status_t of the operation. Could be any error returned from
1288  * either the input filter chain of c_i or the output filter chain
1289  * of c_o. APR_EPIPE if the outgoing connection was aborted.
1290  */
1292  request_rec *r,
1293  conn_rec *c_i,
1294  conn_rec *c_o,
1295  apr_bucket_brigade *bb_i,
1296  apr_bucket_brigade *bb_o,
1297  const char *name,
1298  int *sent,
1299  apr_off_t bsize,
1300  int after);
1301 
1303 
1304 #endif /*MOD_PROXY_H*/
1305 
#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:473
unsigned int fnv
Definition: mod_proxy.h:392
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:259
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:410
proxy_worker proxy_server_conf char const char apr_port_t proxyport
Definition: mod_proxy.h:611
unsigned int growth_set
Definition: mod_proxy.h:538
int hmax
Definition: mod_proxy.h:412
apr_sockaddr_t * addr
Definition: mod_proxy.h:261
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:258
int lbfactor
Definition: mod_proxy.h:409
Definition: mod_proxy.h:82
char flag
Definition: mod_proxy.h:90
apr_port_t port
Definition: mod_proxy.h:267
struct apr_reslist_t apr_reslist_t
Definition: apr_reslist.h:42
ap_conf_vector_t * section_config
Definition: mod_proxy.h:540
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:281
Definition: mod_proxy.h:141
apr_time_t wupdated
Definition: mod_proxy.h:499
float cache_completion
Definition: mod_proxy.h:282
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:626
proxy_conn_pool * cp
Definition: mod_proxy.h:472
const char * ssl_hostname
Definition: mod_proxy.h:274
const char * name
Definition: mod_proxy.h:544
struct apr_sockaddr_t * hostaddr
Definition: mod_proxy.h:137
Apache Provider API.
apr_interval_time_t interval
Definition: mod_proxy.h:436
const char * uds_path
Definition: mod_proxy.h:273
proxy_hashes hash
Definition: mod_proxy.h:419
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:251
proxy_server_conf * sconf
Definition: mod_proxy.h:533
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:289
int index
Definition: mod_proxy.h:501
Definition: mod_proxy.h:489
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:250
Definition: mod_proxy.h:423
const char * domain
Definition: mod_proxy.h:156
apr_uint32_t flags
Definition: mod_proxy.h:266
Definition: mod_proxy.h:248
apr_status_t ap_proxy_initialize_worker(proxy_worker *worker, server_rec *s, apr_pool_t *p)
proxy_hash_t
Definition: mod_proxy.h:1107
int ap_proxy_connect_backend(const char *proxy_function, proxy_conn_rec *conn, proxy_worker *worker, server_rec *s)
Definition: mod_proxy.h:390
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:440
void * context
Definition: mod_proxy.h:444
apr_interval_time_t timeout
Definition: mod_proxy.h:498
apr_size_t io_buffer_size
Definition: mod_proxy.h:438
CORE HTTP Daemon.
int fails
Definition: mod_proxy.h:417
apr_array_header_t * errstatuses
Definition: mod_proxy.h:523
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:530
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:626
#define PROXY_WORKER_MAX_ROUTE_SIZE
Definition: mod_proxy.h:353
Definition: apr_buckets.h:258
const char apr_size_t dlen
Definition: mod_proxy.h:658
APR Thread Mutex Routines.
void * context
Definition: mod_proxy.h:547
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:427
Definition: mod_proxy.h:75
Structure to store things which are per connection.
Definition: httpd.h:1116
int flush_wait
Definition: mod_proxy.h:413
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:867
Definition: mod_proxy.h:174
apr_status_t(* updatelbstatus)(proxy_balancer *balancer, proxy_worker *elected, server_rec *s)
Definition: mod_proxy.h:550
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:462
Symbol export macros and hook functions.
#define PROXY_MAX_PROVIDER_NAME_SIZE
Definition: mod_proxy.h:369
apr_status_t(* reset)(proxy_balancer *balancer, server_rec *s)
Definition: mod_proxy.h:548
#define PROXY_DECLARE_OPTIONAL_HOOK
Definition: mod_proxy.h:588
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:567
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:529
const char *(* ap_proxy_header_reverse_map_fn)(request_rec *, proxy_dir_conf *, const char *)
Definition: mod_proxy.h:699
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:471
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:420
apr_int64_t apr_time_t
Definition: apr_time.h:45
Definition: mod_proxy.h:165
void * forward
Definition: mod_proxy.h:265
#define PROXY_RFC1035_HOSTNAME_SIZE
Definition: mod_proxy.h:362
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:470
Apache hook functions.
Definition: mod_proxy.h:1107
#define PROXY_BALANCER_MAX_ROUTE_SIZE
Definition: mod_proxy.h:354
unsigned int flags
Definition: mod_proxy.h:130
A structure to store information for each virtual server.
Definition: httpd.h:1310
Definition: mod_proxy.h:164
void * context
Definition: mod_proxy.h:476
apr_global_mutex_t * mutex
Definition: mod_proxy.h:183
apr_time_t error_time
Definition: mod_proxy.h:428
Definition: mod_proxy.h:75
const char * p
Definition: mod_proxy.h:206
int growth
Definition: mod_proxy.h:526
int
Definition: mod_proxy.h:626
int smax
Definition: mod_proxy.h:411
apr_array_header_t * raliases
Definition: mod_proxy.h:249
Definition: mod_proxy.h:254
Definition: mod_proxy.h:396
int max_attempts
Definition: mod_proxy.h:500
apr_off_t read
Definition: mod_proxy.h:443
#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:429
proxy_balancer_shared * s
Definition: mod_proxy.h:535
#define PROXY_WORKER_MAX_NAME_SIZE
Definition: mod_proxy.h:355
Definition: mod_proxy.h:521
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:263
apr_reslist_t * res
Definition: mod_proxy.h:290
request_rec * r
Definition: mod_proxy.h:256
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:611
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:360
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:441
APR MD5 Routines.
APR general purpose library routines.
#define PROXY_WORKER_MAX_HOSTNAME_SIZE
Definition: mod_proxy.h:357
APR-UTIL string matching routines.
#define PROXY_BALANCER_MAX_STICKY_SIZE
Definition: mod_proxy.h:359
int ap_proxyerror(request_rec *r, int statuscode, const char *message)
void * context
Definition: mod_proxy.h:534
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:432
Definition: mod_proxy.h:75
void ap_proxy_c2hex(int ch, char *x)
HTTP protocol handling.
int pcount
Definition: mod_proxy.h:416
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:356
ap_slotmem_provider_t * storage
Definition: mod_proxy.h:525
proxy_conn_rec * conn
Definition: mod_proxy.h:291
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:283
apr_array_header_t * workers
Definition: mod_proxy.h:522
int implemented
Definition: mod_proxy.h:85
apr_interval_time_t acquire
Definition: mod_proxy.h:433
apr_global_mutex_t * gmutex
Definition: mod_proxy.h:531
apr_off_t transferred
Definition: mod_proxy.h:442
Definition: mod_proxy.h:1107
apr_sockaddr_t * source_address
Definition: mod_proxy.h:182
apr_pool_t * scpool
Definition: mod_proxy.h:262
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:806
Definition: mod_proxy.h:163
int retries
Definition: mod_proxy.h:407
int fcount
Definition: mod_proxy.h:418
Apache filter library.
const char * hostname
Definition: mod_proxy.h:260
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:415
int lbset
Definition: mod_proxy.h:406
dav_buffer const char * str
Definition: mod_dav.h:461
Definition: mod_proxy.h:179
apr_interval_time_t retry
Definition: mod_proxy.h:431
const char * id
Definition: mod_proxy.h:157
int status
Definition: mod_dav.h:141
#define PROXY_DECLARE(type)
Definition: mod_proxy.h:565
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:434
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:358
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:532
Definition: mod_proxy.h:287
apr_status_t(* age)(proxy_balancer *balancer, server_rec *s)
Definition: mod_proxy.h:549
ap_slotmem_instance_t * bslot
Definition: mod_proxy.h:184
int index
Definition: mod_proxy.h:414
apr_bucket_brigade * tmp_bb
Definition: mod_proxy.h:275
struct apr_pool_t apr_pool_t
Definition: apr_pools.h:60
Definition: mod_proxy.h:79
conn_rec * connection
Definition: mod_proxy.h:255
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:539
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:502
Definition: mod_proxy.h:79
Definition: mod_proxy.h:469
apr_status_t ap_proxy_initialize_balancer(proxy_balancer *balancer, server_rec *s, apr_pool_t *p)
int failontimeout
Definition: mod_proxy.h:536
apr_pool_t * pool
Definition: mod_proxy.h:288
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:352
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:477
Definition: mod_proxy.h:88
void * data
Definition: mod_proxy.h:264
apr_thread_mutex_t * tmutex
Definition: mod_proxy.h:475
int lbstatus
Definition: mod_proxy.h:408
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:611
apr_size_t recv_buffer_size
Definition: mod_proxy.h:437
Definition: mod_proxy.h:79
Definition: mod_proxy.h:205
unsigned int def
Definition: mod_proxy.h:391
struct ap_conf_vector_t ap_conf_vector_t
Definition: http_config.h:519
hcmethod_t method
Definition: mod_proxy.h:426
apr_interval_time_t conn_timeout
Definition: mod_proxy.h:435
proxy_worker * worker
Definition: mod_proxy.h:611
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:474
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:527
Definition: mod_proxy.h:1107
apr_status_t ap_proxy_share_worker(proxy_worker *worker, proxy_worker_shared *shm, int i)
PROXY
Definition: mod_proxy.h:626
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:543
unsigned int failontimeout_set
Definition: mod_proxy.h:537
apr_array_header_t * noproxies
Definition: mod_proxy.h:150
Definition: mod_proxy.h:422
off_t apr_off_t
Definition: apr.h:377
Memory Slot Extension Storage Module for Apache.
proxy_hashes hash
Definition: mod_proxy.h:528
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:524
proxy_worker proxy_server_conf char const char * proxyhost
Definition: mod_proxy.h:611
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:511
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:658
apr_size_t elected
Definition: mod_proxy.h:439