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54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
59 #ifndef APACHE_HTTP_CONFIG_H
60 #define APACHE_HTTP_CONFIG_H
62 #include "apr_hooks.h"
63 #include "util_cfgtree.h"
71 * @brief Apache Configuration
75 * The central data structures around here...
78 /* Command dispatch structures... */
81 * How the directives arguments should be parsed.
82 * @remark Note that for all of these except RAW_ARGS, the config routine is
83 * passed a freshly allocated string which can be modified or stored
87 RAW_ARGS, /**< cmd_func parses command line itself */
88 TAKE1, /**< one argument only */
89 TAKE2, /**< two arguments only */
90 ITERATE, /**< one argument, occuring multiple times
93 ITERATE2, /**< two arguments, 2nd occurs multiple times
96 FLAG, /**< One of 'On' or 'Off' */
97 NO_ARGS, /**< No args at all, e.g. </Directory> */
98 TAKE12, /**< one or two arguments */
99 TAKE3, /**< three arguments only */
100 TAKE23, /**< two or three arguments */
101 TAKE123, /**< one, two or three arguments */
102 TAKE13 /**< one or three arguments */
105 * This structure is passed to a command which is being invoked,
106 * to carry a large variety of miscellaneous data which is all of
107 * use to *somebody*...
109 typedef struct cmd_parms_struct cmd_parms;
111 #if defined(AP_HAVE_DESIGNATED_INITIALIZER) || defined(DOXYGEN)
114 * All the types of functions that can be used in directives
118 /** function to call for a no-args */
119 const char *(*no_args) (cmd_parms *parms, void *mconfig);
120 /** function to call for a raw-args */
121 const char *(*raw_args) (cmd_parms *parms, void *mconfig,
123 /** function to call for a take1 */
124 const char *(*take1) (cmd_parms *parms, void *mconfig, const char *w);
125 /** function to call for a take2 */
126 const char *(*take2) (cmd_parms *parms, void *mconfig, const char *w,
128 /** function to call for a take3 */
129 const char *(*take3) (cmd_parms *parms, void *mconfig, const char *w,
130 const char *w2, const char *w3);
131 /** function to call for a flag */
132 const char *(*flag) (cmd_parms *parms, void *mconfig, int on);
135 /** This configuration directive does not take any arguments */
136 # define AP_NO_ARGS func.no_args
137 /** This configuration directive will handle it's own parsing of arguments*/
138 # define AP_RAW_ARGS func.raw_args
139 /** This configuration directive takes 1 argument*/
140 # define AP_TAKE1 func.take1
141 /** This configuration directive takes 2 arguments */
142 # define AP_TAKE2 func.take2
143 /** This configuration directive takes 3 arguments */
144 # define AP_TAKE3 func.take3
145 /** This configuration directive takes a flag (on/off) as a argument*/
146 # define AP_FLAG func.flag
148 /** method of declaring a directive with no arguments */
149 # define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \
150 { directive, { .no_args=func }, mconfig, where, RAW_ARGS, help }
151 /** method of declaring a directive with raw argument parsing */
152 # define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \
153 { directive, { .raw_args=func }, mconfig, where, RAW_ARGS, help }
154 /** method of declaring a directive which takes 1 argument */
155 # define AP_INIT_TAKE1(directive, func, mconfig, where, help) \
156 { directive, { .take1=func }, mconfig, where, TAKE1, help }
157 /** method of declaring a directive which takes multiple arguments */
158 # define AP_INIT_ITERATE(directive, func, mconfig, where, help) \
159 { directive, { .take1=func }, mconfig, where, ITERATE, help }
160 /** method of declaring a directive which takes 2 arguments */
161 # define AP_INIT_TAKE2(directive, func, mconfig, where, help) \
162 { directive, { .take2=func }, mconfig, where, TAKE2, help }
163 /** method of declaring a directive which takes 1 or 2 arguments */
164 # define AP_INIT_TAKE12(directive, func, mconfig, where, help) \
165 { directive, { .take2=func }, mconfig, where, TAKE12, help }
166 /** method of declaring a directive which takes multiple 2 arguments */
167 # define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \
168 { directive, { .take2=func }, mconfig, where, ITERATE2, help }
169 /** method of declaring a directive which takes 1 or 3 arguments */
170 # define AP_INIT_TAKE13(directive, func, mconfig, where, help) \
171 { directive, { .take3=func }, mconfig, where, TAKE13, help }
172 /** method of declaring a directive which takes 2 or 3 arguments */
173 # define AP_INIT_TAKE23(directive, func, mconfig, where, help) \
174 { directive, { .take3=func }, mconfig, where, TAKE23, help }
175 /** method of declaring a directive which takes 1 to 3 arguments */
176 # define AP_INIT_TAKE123(directive, func, mconfig, where, help) \
177 { directive, { .take3=func }, mconfig, where, TAKE123, help }
178 /** method of declaring a directive which takes 3 arguments */
179 # define AP_INIT_TAKE3(directive, func, mconfig, where, help) \
180 { directive, { .take3=func }, mconfig, where, TAKE3, help }
181 /** method of declaring a directive which takes a flag (on/off) as a argument*/
182 # define AP_INIT_FLAG(directive, func, mconfig, where, help) \
183 { directive, { .flag=func }, mconfig, where, FLAG, help }
185 #else /* AP_HAVE_DESIGNATED_INITIALIZER */
187 typedef const char *(*cmd_func) ();
189 # define AP_NO_ARGS func
190 # define AP_RAW_ARGS func
191 # define AP_TAKE1 func
192 # define AP_TAKE2 func
193 # define AP_TAKE3 func
194 # define AP_FLAG func
196 # define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \
197 { directive, func, mconfig, where, RAW_ARGS, help }
198 # define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \
199 { directive, func, mconfig, where, RAW_ARGS, help }
200 # define AP_INIT_TAKE1(directive, func, mconfig, where, help) \
201 { directive, func, mconfig, where, TAKE1, help }
202 # define AP_INIT_ITERATE(directive, func, mconfig, where, help) \
203 { directive, func, mconfig, where, ITERATE, help }
204 # define AP_INIT_TAKE2(directive, func, mconfig, where, help) \
205 { directive, func, mconfig, where, TAKE2, help }
206 # define AP_INIT_TAKE12(directive, func, mconfig, where, help) \
207 { directive, func, mconfig, where, TAKE12, help }
208 # define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \
209 { directive, func, mconfig, where, ITERATE2, help }
210 # define AP_INIT_TAKE13(directive, func, mconfig, where, help) \
211 { directive, func, mconfig, where, TAKE13, help }
212 # define AP_INIT_TAKE23(directive, func, mconfig, where, help) \
213 { directive, func, mconfig, where, TAKE23, help }
214 # define AP_INIT_TAKE123(directive, func, mconfig, where, help) \
215 { directive, func, mconfig, where, TAKE123, help }
216 # define AP_INIT_TAKE3(directive, func, mconfig, where, help) \
217 { directive, func, mconfig, where, TAKE3, help }
218 # define AP_INIT_FLAG(directive, func, mconfig, where, help) \
219 { directive, func, mconfig, where, FLAG, help }
221 #endif /* AP_HAVE_DESIGNATED_INITIALIZER */
224 * The command record structure. Each modules can define a table of these
225 * to define the directives it will implement.
227 typedef struct command_struct command_rec;
228 struct command_struct {
229 /** Name of this command */
231 /** The function to be called when this directive is parsed */
233 /** Extra data, for functions which implement multiple commands... */
235 /** What overrides need to be allowed to enable this command. */
237 /** What the command expects as arguments
238 * @defvar cmd_how args_how*/
239 enum cmd_how args_how;
241 /** 'usage' message, in case of syntax errors */
246 * @defgroup ConfigDirectives Allowed locations for configuration directives.
248 * The allowed locations for a configuration directive are the union of
249 * those indicated by each set bit in the req_override mask.
253 #define OR_NONE 0 /**< *.conf is not available anywhere in this override */
254 #define OR_LIMIT 1 /**< *.conf inside <Directory> or <Location>
255 and .htaccess when AllowOverride Limit */
256 #define OR_OPTIONS 2 /**< *.conf anywhere
257 and .htaccess when AllowOverride Options */
258 #define OR_FILEINFO 4 /**< *.conf anywhere
259 and .htaccess when AllowOverride FileInfo */
260 #define OR_AUTHCFG 8 /**< *.conf inside <Directory> or <Location>
261 and .htaccess when AllowOverride AuthConfig */
262 #define OR_INDEXES 16 /**< *.conf anywhere
263 and .htaccess when AllowOverride Indexes */
264 #define OR_UNSET 32 /**< unset a directive (in Allow) */
265 #define ACCESS_CONF 64 /**< *.conf inside <Directory> or <Location> */
266 #define RSRC_CONF 128 /**< *.conf outside <Directory> or <Location> */
267 #define EXEC_ON_READ 256 /**< force directive to execute a command
268 which would modify the configuration (like including another
270 /** this directive can be placed anywhere */
271 #define OR_ALL (OR_LIMIT|OR_OPTIONS|OR_FILEINFO|OR_AUTHCFG|OR_INDEXES)
276 * This can be returned by a function if they don't wish to handle
277 * a command. Make it something not likely someone will actually use
280 #define DECLINE_CMD "\a\b"
282 /** Common structure for reading of config files / passwd files etc. */
283 typedef struct ap_configfile_t ap_configfile_t;
284 struct ap_configfile_t {
285 int (*getch) (void *param); /**< a getc()-like function */
286 void *(*getstr) (void *buf, size_t bufsiz, void *param);
287 /**< a fgets()-like function */
288 int (*close) (void *param); /**< a close handler function */
289 void *param; /**< the argument passed to getch/getstr/close */
290 const char *name; /**< the filename / description */
291 unsigned line_number; /**< current line number, starting at 1 */
295 * This structure is passed to a command which is being invoked,
296 * to carry a large variety of miscellaneous data which is all of
297 * use to *somebody*...
299 struct cmd_parms_struct {
300 /** Argument to command from cmd_table */
302 /** Which allow-override bits are set */
304 /** Which methods are <Limit>ed */
306 /** methods which are limited */
307 apr_array_header_t *limited_xmethods;
308 /** methods which are xlimited */
309 ap_method_list_t *xlimited;
311 /** Config file structure. */
312 ap_configfile_t *config_file;
313 /** the directive specifying this command */
314 ap_directive_t *directive;
316 /** Pool to allocate new storage in */
318 /** Pool for scratch memory; persists during configuration, but
319 * wiped before the first request is served... */
320 apr_pool_t *temp_pool;
321 /** Server_rec being configured for */
323 /** If configuring for a directory, pathname of that directory.
324 * NOPE! That's what it meant previous to the existance of <Files>,
325 * <Location> and regex matching. Now the only usefulness that can be
326 * derived from this field is whether a command is being called in a
327 * server context (path == NULL) or being called in a dir context
330 /** configuration command */
331 const command_rec *cmd;
333 /** per_dir_config vector passed to handle_command */
334 struct ap_conf_vector_t *context;
335 /** directive with syntax error */
336 const ap_directive_t *err_directive;
340 * Module structures. Just about everything is dispatched through
341 * these, directly or indirectly (through the command and handler
344 typedef struct module_struct module;
345 struct module_struct {
346 /** API version, *not* module version; check that module is
347 * compatible with this version of the server.
350 /** API minor version. Provides API feature milestones. Not checked
351 * during module init */
353 /** Index to this modules structures in config vectors. */
356 /** The name of the module's C file */
358 /** The handle for the DSO. Internal use only */
359 void *dynamic_load_handle;
361 /** A pointer to the next module in the list
362 * @defvar module_struct *next */
363 struct module_struct *next;
365 /** Magic Cookie to identify a module structure; It's mainly
366 * important for the DSO facility (see also mod_so). */
369 /** Function to allow MPMs to re-write command line arguments. This
370 * hook is only available to MPMs.
371 * @param The process that the server is running in.
373 void (*rewrite_args) (process_rec *process);
374 /** Function to allow all modules to create per directory configuration
376 * @param p The pool to use for all allocations.
377 * @param dir The directory currently being processed.
378 * @return The per-directory structure created
380 void *(*create_dir_config) (apr_pool_t *p, char *dir);
381 /** Function to allow all modules to merge the per directory configuration
382 * structures for two directories.
383 * @param p The pool to use for all allocations.
384 * @param base_conf The directory structure created for the parent directory.
385 * @param new_conf The directory structure currently being processed.
386 * @return The new per-directory structure created
388 void *(*merge_dir_config) (apr_pool_t *p, void *base_conf, void *new_conf);
389 /** Function to allow all modules to create per server configuration
391 * @param p The pool to use for all allocations.
392 * @param s The server currently being processed.
393 * @return The per-server structure created
395 void *(*create_server_config) (apr_pool_t *p, server_rec *s);
396 /** Function to allow all modules to merge the per server configuration
397 * structures for two servers.
398 * @param p The pool to use for all allocations.
399 * @param base_conf The directory structure created for the parent directory.
400 * @param new_conf The directory structure currently being processed.
401 * @return The new per-directory structure created
403 void *(*merge_server_config) (apr_pool_t *p, void *base_conf, void *new_conf);
405 /** A command_rec table that describes all of the directives this module
407 const command_rec *cmds;
409 /** A hook to allow modules to hook other points in the request processing.
410 * In this function, modules should call the ap_hook_*() functions to
411 * register an interest in a specific step in processing the current
413 * @param p the pool to use for all allocations
415 void (*register_hooks) (apr_pool_t *p);
419 * @defgroup ModuleInit Module structure initializers
421 * Initializer for the first few module slots, which are only
422 * really set up once we start running. Note that the first two slots
423 * provide a version check; this should allow us to deal with changes to
424 * the API. The major number should reflect changes to the API handler table
425 * itself or removal of functionality. The minor number should reflect
426 * additions of functionality to the existing API. (the server can detect
427 * an old-format module, and either handle it back-compatibly, or at least
428 * signal an error). See src/include/ap_mmn.h for MMN version history.
432 /** The one used in Apache 1.3, which will deliberately cause an error */
433 #define STANDARD_MODULE_STUFF this_module_needs_to_be_ported_to_apache_2_0
435 /** Use this in all standard modules */
436 #define STANDARD20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \
437 MODULE_MAGIC_NUMBER_MINOR, \
442 MODULE_MAGIC_COOKIE, \
443 NULL /* rewrite args spot */
445 /** Use this only in MPMs */
446 #define MPM20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \
447 MODULE_MAGIC_NUMBER_MINOR, \
456 /* CONFIGURATION VECTOR FUNCTIONS */
458 /** configuration vector structure */
459 typedef struct ap_conf_vector_t ap_conf_vector_t;
461 #if defined(AP_DEBUG) || defined(DOXYGEN)
463 * Generic accessors for other modules to get at their own module-specific
465 * @param conf_vector The vector in which the modules configuration is stored.
466 * usually r->per_dir_config or s->module_config
467 * @param m The module to get the data for.
468 * @return The module-specific data
470 AP_DECLARE(void *) ap_get_module_config(const ap_conf_vector_t *cv,
474 * Generic accessors for other modules to set at their own module-specific
476 * @param conf_vector The vector in which the modules configuration is stored.
477 * usually r->per_dir_config or s->module_config
478 * @param m The module to set the data for.
479 * @param val The module-specific data to set
481 AP_DECLARE(void) ap_set_module_config(ap_conf_vector_t *cv, const module *m,
486 #define ap_get_module_config(v,m) \
487 (((void **)(v))[(m)->module_index])
488 #define ap_set_module_config(v,m,val) \
489 ((((void **)(v))[(m)->module_index]) = (val))
491 #endif /* AP_DEBUG */
495 * Generic command handling function for strings
496 * @param cmd The command parameters for this directive
497 * @param struct_ptr pointer into a given type
498 * @param arg The argument to the directive
499 * @return An error string or NULL on success
501 AP_DECLARE_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd, void *struct_ptr,
505 * Generic command handling function for integers
506 * @param cmd The command parameters for this directive
507 * @param struct_ptr pointer into a given type
508 * @param arg The argument to the directive
509 * @return An error string or NULL on success
511 AP_DECLARE_NONSTD(const char *) ap_set_int_slot(cmd_parms *cmd,
516 * Return true if the specified method is limited by being listed in
517 * a <Limit> container, or by *not* being listed in a <LimiteExcept>
520 * @param method Pointer to a string specifying the method to check.
521 * @param cmd Pointer to the cmd_parms structure passed to the
523 * @return 0 if the method is not limited in the current scope
525 AP_DECLARE(int) ap_method_is_limited(cmd_parms *cmd, const char *method);
528 * Generic command handling function for strings, always sets the value
529 * to a lowercase string
530 * @param cmd The command parameters for this directive
531 * @param struct_ptr pointer into a given type
532 * @param arg The argument to the directive
533 * @return An error string or NULL on success
535 AP_DECLARE_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd,
536 void *struct_ptr, const char *arg);
538 * Generic command handling function for flags
539 * @param cmd The command parameters for this directive
540 * @param struct_ptr pointer into a given type
541 * @param arg The argument to the directive (either 1 or 0)
542 * @return An error string or NULL on success
544 AP_DECLARE_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd, void *struct_ptr, int arg);
546 * Generic command handling function for files
547 * @param cmd The command parameters for this directive
548 * @param struct_ptr pointer into a given type
549 * @param arg The argument to the directive
550 * @return An error string or NULL on success
552 AP_DECLARE_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd, void *struct_ptr, const char *arg);
554 * Generic command handling function to respond with cmd->help as an error
555 * @param cmd The command parameters for this directive
556 * @param struct_ptr pointer into a given type
557 * @param arg The argument to the directive
558 * @return The cmd->help value as the error string
559 * @tip This allows simple declarations such as;
561 * AP_INIT_RAW_ARGS("Foo", ap_set_deprecated, NULL, OR_ALL,
562 * "The Foo directive is no longer supported, use Bar"),
565 AP_DECLARE_NONSTD(const char *) ap_set_deprecated(cmd_parms *cmd, void *struct_ptr, const char *arg);
567 * For modules which need to read config files, open logs, etc. this returns
568 * the canonical form of fname made absolute to ap_server_root.
569 * @param p pool to allocate data from
570 * @param fname The file name
572 AP_DECLARE(char *) ap_server_root_relative(apr_pool_t *p, const char *fname);
574 /* Finally, the hook for dynamically loading modules in... */
577 * Add a module to the server
578 * @param m The module structure of the module to add
579 * @param p The pool of the same lifetime as the module
581 AP_DECLARE(void) ap_add_module(module *m, apr_pool_t *p);
584 * Remove a module from the server. There are some caveats:
585 * when the module is removed, its slot is lost so all the current
586 * per-dir and per-server configurations are invalid. So we should
587 * only ever call this function when you are invalidating almost
588 * all our current data. I.e. when doing a restart.
589 * @param m the module structure of the module to remove
591 AP_DECLARE(void) ap_remove_module(module *m);
593 * Add a module to the chained modules list and the list of loaded modules
594 * @param m The module structure of the module to add
595 * @param p The pool with the same lifetime as the module
597 AP_DECLARE(void) ap_add_loaded_module(module *mod, apr_pool_t *p);
599 * Remove a module fromthe chained modules list and the list of loaded modules
600 * @param m the module structure of the module to remove
602 AP_DECLARE(void) ap_remove_loaded_module(module *mod);
604 * Add a module to the list of loaded module based on the name of the
606 * @param name The name of the module
607 * @param p The pool valid for the lifetime of the module
608 * @return 1 on success, 0 on failure
610 AP_DECLARE(int) ap_add_named_module(const char *name, apr_pool_t *p);
612 * Find the name of the specified module
613 * @param m The module to get the name for
614 * @return the name of the module
616 AP_DECLARE(const char *) ap_find_module_name(module *m);
618 * Find a module based on the name of the module
619 * @param name the name of the module
620 * @return the module structure if found, NULL otherwise
622 AP_DECLARE(module *) ap_find_linked_module(const char *name);
625 * Open a ap_configfile_t as apr_file_t
626 * @param ret_cfg open ap_configfile_t struct pointer
627 * @param p The pool to allocate the structure from
628 * @param name the name of the file to open
630 AP_DECLARE(apr_status_t) ap_pcfg_openfile(ap_configfile_t **ret_cfg, apr_pool_t *p, const char *name);
633 * Allocate a ap_configfile_t handle with user defined functions and params
634 * @param p The pool to allocate from
635 * @param descr The name of the file
636 * @param param The argument passed to getch/getstr/close
637 * @param getc_func The getch function
638 * @param gets_func The getstr function
639 * @param close_func The close function
641 AP_DECLARE(ap_configfile_t *) ap_pcfg_open_custom(apr_pool_t *p, const char *descr,
643 int(*getc_func)(void*),
644 void *(*gets_func) (void *buf, size_t bufsiz, void *param),
645 int(*close_func)(void *param));
648 * Read one line from open ap_configfile_t, strip LF, increase line number
649 * @param buf place to store the line read
650 * @param bufsize size of the buffer
651 * @param cfp File to read from
652 * @return 1 on success, 0 on failure
654 AP_DECLARE(int) ap_cfg_getline(char *buf, size_t bufsize, ap_configfile_t *cfp);
657 * Read one char from open configfile_t, increase line number upon LF
658 * @param cfp The file to read from
659 * @return the character read
661 AP_DECLARE(int) ap_cfg_getc(ap_configfile_t *cfp);
664 * Detach from open ap_configfile_t, calling the close handler
665 * @param cfp The file to close
666 * @return 1 on sucess, 0 on failure
668 AP_DECLARE(int) ap_cfg_closefile(ap_configfile_t *cfp);
671 * Read all data between the current <foo> and the matching </foo>. All
672 * of this data is forgotten immediately.
673 * @param cmd The cmd_parms to pass to the directives inside the container
674 * @param directive The directive name to read until
675 * @return Error string on failure, NULL on success
677 AP_DECLARE(const char *) ap_soak_end_container(cmd_parms *cmd, char *directive);
680 * Read all data between the current <foo> and the matching </foo> and build
681 * a config tree from it
682 * @param p pool to allocate from
683 * @param temp_pool Temporary pool to allocate from
684 * @param parms The cmd_parms to pass to all directives read
685 * @param current The current node in the tree
686 * @param curr_parent The current parent node
687 * @param orig_directive The directive to read until hit.
688 * @return Error string on failure, NULL on success
690 AP_DECLARE(const char *) ap_build_cont_config(apr_pool_t *p,
691 apr_pool_t *temp_pool,
693 ap_directive_t **current,
694 ap_directive_t **curr_parent,
695 char *orig_directive);
698 * Build a config tree from a config file
699 * @param parms The cmd_parms to pass to all of the directives in the file
700 * @param conf_pool The pconf pool
701 * @param temp_pool The temporary pool
702 * @param conftree Place to store the root node of the config tree
703 * @return Error string on erro, NULL otherwise
705 AP_DECLARE(const char *) ap_build_config(cmd_parms *parms,
706 apr_pool_t *conf_pool,
707 apr_pool_t *temp_pool,
708 ap_directive_t **conftree);
711 * Walk a config tree and setup the server's internal structures
712 * @param conftree The config tree to walk
713 * @param parms The cmd_parms to pass to all functions
714 * @param section_vector The per-section config vector.
715 * @return Error string on error, NULL otherwise
717 AP_DECLARE(const char *) ap_walk_config(ap_directive_t *conftree,
719 ap_conf_vector_t *section_vector);
722 * @defgroup ap_check_cmd_context ap_check_cmd_context
726 * Check the context a command is used in.
727 * @param cmd The command to check
728 * @param forbidden Where the command is forbidden.
729 * @return Error string on error, NULL on success
731 AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd, unsigned forbidden);
733 #define NOT_IN_VIRTUALHOST 0x01 /**< Forbidden in <Virtualhost> */
734 #define NOT_IN_LIMIT 0x02 /**< Forbidden in <Limit> */
735 #define NOT_IN_DIRECTORY 0x04 /**< Forbidden in <Directory> */
736 #define NOT_IN_LOCATION 0x08 /**< Forbidden in <Location> */
737 #define NOT_IN_FILES 0x10 /**< Forbidden in <Files> */
738 /** Forbidden in <Directory>/<Location>/<Files>*/
739 #define NOT_IN_DIR_LOC_FILE (NOT_IN_DIRECTORY|NOT_IN_LOCATION|NOT_IN_FILES)
740 /** Forbidden in <VirtualHost>/<Limit>/Directory>/<Location>/<Files> */
741 #define GLOBAL_ONLY (NOT_IN_VIRTUALHOST|NOT_IN_LIMIT|NOT_IN_DIR_LOC_FILE)
748 * The topmost module in the list
749 * @defvar module *ap_top_module
751 AP_DECLARE_DATA extern module *ap_top_module;
754 * Array of all statically linked modules
755 * @defvar module *ap_prelinked_modules[]
757 AP_DECLARE_DATA extern module *ap_prelinked_modules[];
759 * Array of all preloaded modules
760 * @defvar module *ap_preloaded_modules[]
762 AP_DECLARE_DATA extern module *ap_preloaded_modules[];
764 * Array of all loaded modules
765 * @defvar module **ap_loaded_modules
767 AP_DECLARE_DATA extern module **ap_loaded_modules;
769 /* For mod_so.c... */
770 /** Run a single module's two create_config hooks
771 * @param p the pool to allocate from
772 * @param s The server to configure for.
773 * @param m The module to configure
775 AP_DECLARE(void) ap_single_module_configure(apr_pool_t *p, server_rec *s,
778 /* For http_main.c... */
780 * Add all of the prelinked modules into the loaded module list
781 * @param process The process that is currently running the server
783 AP_DECLARE(void) ap_setup_prelinked_modules(process_rec *process);
786 * Show the preloaded configuration directives, the help string explaining
787 * the directive arguments, in what module they are handled, and in
788 * what parts of the configuration they are allowed. Used for httpd -h.
790 AP_DECLARE(void) ap_show_directives(void);
793 * Show the preloaded module names. Used for httpd -l.
795 AP_DECLARE(void) ap_show_modules(void);
798 * Show the MPM name. Used in reporting modules such as mod_info to
799 * provide extra information to the user
801 AP_DECLARE(const char *) ap_show_mpm(void);
804 * Read all config files and setup the server
805 * @param process The process running the server
806 * @param temp_pool A pool to allocate temporary data from.
807 * @param config_name The name of the config file
808 * @param conftree Place to store the root of the config tree
809 * @return The setup server_rec list.
811 AP_DECLARE(server_rec *) ap_read_config(process_rec *process, apr_pool_t *temp_pool, const char *config_name, ap_directive_t **conftree);
814 * Run all rewrite args hooks for loaded modules
815 * @param process The process currently running the server
817 AP_DECLARE(void) ap_run_rewrite_args(process_rec *process);
820 * Run the register hooks function for a specified module
821 * @param m The module to run the register hooks function fo
822 * @param p The pool valid for the lifetime of the module
824 AP_DECLARE(void) ap_register_hooks(module *m, apr_pool_t *p);
827 * Setup all virtual hosts
828 * @param p The pool to allocate from
829 * @param main_server The head of the server_rec list
831 AP_DECLARE(void) ap_fixup_virtual_hosts(apr_pool_t *p, server_rec *main_server);
833 /* For http_request.c... */
836 * Setup the config vector for a request_rec
837 * @param p The pool to allocate the config vector from
838 * @return The config vector
840 AP_CORE_DECLARE(ap_conf_vector_t*) ap_create_request_config(apr_pool_t *p);
843 * Setup the config vector for per dir module configs
844 * @param p The pool to allocate the config vector from
845 * @return The config vector
847 AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_per_dir_config(apr_pool_t *p);
850 * Run all of the modules merge per dir config functions
851 * @param p The pool to pass to the merge functions
852 * @param base The base directory config structure
853 * @param new_conf The new directory config structure
855 AP_CORE_DECLARE(ap_conf_vector_t*) ap_merge_per_dir_configs(apr_pool_t *p,
856 ap_conf_vector_t *base,
857 ap_conf_vector_t *new_conf);
859 /* For http_connection.c... */
861 * Setup the config vector for a connection_rec
862 * @param p The pool to allocate the config vector from
863 * @return The config vector
865 AP_CORE_DECLARE(ap_conf_vector_t*) ap_create_conn_config(apr_pool_t *p);
867 /* For http_core.c... (<Directory> command and virtual hosts) */
870 * parse an htaccess file
871 * @param resulting htaccess_result
872 * @param r The request currently being served
873 * @param override Which overrides are active
874 * @param path The path to the htaccess file
875 * @param access_name The list of possible names for .htaccess files
876 * int The status of the current request
878 AP_CORE_DECLARE(int) ap_parse_htaccess(ap_conf_vector_t **result,
879 request_rec *r, int override,
880 const char *path, const char *access_name);
883 * Setup a virtual host
884 * @param p The pool to allocate all memory from
885 * @param hostname The hostname of the virtual hsot
886 * @param main_server The main server for this Apache configuration
887 * @param ps Place to store the new server_rec
888 * return Error string on error, NULL on success
890 AP_CORE_DECLARE(const char *) ap_init_virtual_host(apr_pool_t *p, const char *hostname,
891 server_rec *main_server, server_rec **);
894 * Process the config file for Apache
895 * @param s The server rec to use for the command parms
896 * @param fname The name of the config file
897 * @param conftree The root node of the created config tree
898 * @param p Pool for general allocation
899 * @param ptem Pool for temporary allocation
901 AP_DECLARE(void) ap_process_resource_config(server_rec *s, const char *fname,
902 ap_directive_t **conftree, apr_pool_t *p, apr_pool_t *ptemp);
905 * Process all directives in the config tree
906 * @param s The server rec to use in the command parms
907 * @param conftree The config tree to process
908 * @param p The pool for general allocation
909 * @param ptemp The pool for temporary allocations
911 AP_DECLARE(void) ap_process_config_tree(server_rec *s, ap_directive_t *conftree,
912 apr_pool_t *p, apr_pool_t *ptemp);
914 /* Module-method dispatchers, also for http_request.c */
916 * Run the handler phase of each module until a module accepts the
917 * responsibility of serving the request
918 * @param r The current request
919 * @return The status of the current request
921 AP_CORE_DECLARE(int) ap_invoke_handler(request_rec *r);
926 * Find a given directive in a command_rec table
927 * @param name The directive to search for
928 * @param cmds The table to search
929 * @return The directive definition of the specified directive
931 AP_CORE_DECLARE(const command_rec *) ap_find_command(const char *name, const command_rec *cmds);
934 * Find a given directive in a list module
935 * @param cmd_name The directive to search for
936 * @param mod The module list to search
937 * @return The directive definition of the specified directive
939 AP_CORE_DECLARE(const command_rec *) ap_find_command_in_modules(const char *cmd_name, module **mod);
942 * Ask a module to create per-server and per-section (dir/loc/file) configs
943 * (if it hasn't happened already). The results are stored in the server's
944 * config, and the specified per-section config vector.
945 * @param server The server to operate upon.
946 * @param section_vector The per-section config vector.
947 * @param section Which section to create a config for.
948 * @param mod The module which is defining the config data.
949 * @param pconf A pool for all configuration allocations.
950 * @return The (new) per-section config data.
952 AP_CORE_DECLARE(void *) ap_set_config_vectors(server_rec *server,
953 ap_conf_vector_t *section_vector,
955 module *mod, apr_pool_t *pconf);
962 * Run the header parser functions for each module
963 * @param r The current request
964 * @return OK or DECLINED
966 AP_DECLARE_HOOK(int,header_parser,(request_rec *r))
969 * Run the pre_config function for each module
970 * @param pconf The config pool
971 * @param plog The logging streams pool
972 * @param ptemp The temporary pool
974 AP_DECLARE_HOOK(void,pre_config,(apr_pool_t *pconf,apr_pool_t *plog,apr_pool_t *ptemp))
977 * Run the post_config function for each module
978 * @param pconf The config pool
979 * @param plog The logging streams pool
980 * @param ptemp The temporary pool
981 * @param s The list of server_recs
984 AP_DECLARE_HOOK(int,post_config,(apr_pool_t *pconf,apr_pool_t *plog,apr_pool_t *ptemp,server_rec *s))
987 * Run the open_logs functions for each module
988 * @param pconf The config pool
989 * @param plog The logging streams pool
990 * @param ptemp The temporary pool
991 * @param s The list of server_recs
993 AP_DECLARE_HOOK(void,open_logs,(apr_pool_t *pconf,apr_pool_t *plog,apr_pool_t *ptemp,server_rec *s))
996 * Run the child_init functions for each module
997 * @param pchild The child pool
998 * @param s The list of server_recs in this server
1000 AP_DECLARE_HOOK(void,child_init,(apr_pool_t *pchild, server_rec *s))
1003 * Run the handler functions for each module
1004 * @param r The request_rec
1005 * @remark non-wildcard handlers should HOOK_MIDDLE, wildcard HOOK_LAST
1007 AP_DECLARE_HOOK(int,handler,(request_rec *r))
1010 * Run the quick handler functions for each module. The quick_handler
1011 * is run before any other requests hooks are called (location_walk,
1012 * directory_walk, access checking, et. al.). This hook was added
1013 * to provide a quick way to serve content from a URI keyed cache.
1014 * @param r The request_rec
1016 AP_DECLARE_HOOK(int,quick_handler,(request_rec *r))
1019 * Retrieve the optional functions for each module.
1020 * This is run immediately before the server starts. Optional functions should
1021 * be registered during the hook registration phase.
1023 AP_DECLARE_HOOK(void,optional_fn_retrieve,(void))
1029 #endif /* !APACHE_HTTP_CONFIG_H */