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http_config.h
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/* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file http_config.h * @brief Apache Configuration * * @defgroup APACHE_CORE_CONFIG Configuration * @ingroup APACHE_CORE * @{ */ #ifndef APACHE_HTTP_CONFIG_H #define APACHE_HTTP_CONFIG_H #include "util_cfgtree.h" #include "ap_config.h" #include "apr_tables.h" #ifdef __cplusplus extern "C" { #endif /* * The central data structures around here... */ /* Command dispatch structures... */ /** * How the directives arguments should be parsed. * @remark Note that for all of these except RAW_ARGS, the config routine is * passed a freshly allocated string which can be modified or stored * or whatever... */ enum cmd_how { RAW_ARGS, /**< cmd_func parses command line itself */ TAKE1, /**< one argument only */ TAKE2, /**< two arguments only */ ITERATE, /**< one argument, occurring multiple times * (e.g., IndexIgnore) */ ITERATE2, /**< two arguments, 2nd occurs multiple times * (e.g., AddIcon) */ FLAG, /**< One of 'On' or 'Off' */ NO_ARGS, /**< No args at all, e.g. </Directory> */ TAKE12, /**< one or two arguments */ TAKE3, /**< three arguments only */ TAKE23, /**< two or three arguments */ TAKE123, /**< one, two or three arguments */ TAKE13, /**< one or three arguments */ TAKE_ARGV /**< an argc and argv are passed */ }; /** * This structure is passed to a command which is being invoked, * to carry a large variety of miscellaneous data which is all of * use to *somebody*... */ typedef struct cmd_parms_struct cmd_parms; #if defined(AP_HAVE_DESIGNATED_INITIALIZER) || defined(DOXYGEN) /** * All the types of functions that can be used in directives * @internal */ typedef union { /** function to call for a no-args */ const char *(*no_args) (cmd_parms *parms, void *mconfig); /** function to call for a raw-args */ const char *(*raw_args) (cmd_parms *parms, void *mconfig, const char *args); /** function to call for a argv/argc */ const char *(*take_argv) (cmd_parms *parms, void *mconfig, int argc, char *const argv[]); /** function to call for a take1 */ const char *(*take1) (cmd_parms *parms, void *mconfig, const char *w); /** function to call for a take2 */ const char *(*take2) (cmd_parms *parms, void *mconfig, const char *w, const char *w2); /** function to call for a take3 */ const char *(*take3) (cmd_parms *parms, void *mconfig, const char *w, const char *w2, const char *w3); /** function to call for a flag */ const char *(*flag) (cmd_parms *parms, void *mconfig, int on); } cmd_func; /** This configuration directive does not take any arguments */ # define AP_NO_ARGS func.no_args /** This configuration directive will handle its own parsing of arguments*/ # define AP_RAW_ARGS func.raw_args /** This configuration directive will handle its own parsing of arguments*/ # define AP_TAKE_ARGV func.take_argv /** This configuration directive takes 1 argument*/ # define AP_TAKE1 func.take1 /** This configuration directive takes 2 arguments */ # define AP_TAKE2 func.take2 /** This configuration directive takes 3 arguments */ # define AP_TAKE3 func.take3 /** This configuration directive takes a flag (on/off) as a argument*/ # define AP_FLAG func.flag /** mechanism for declaring a directive with no arguments */ # define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \ { directive, { .no_args=func }, mconfig, where, RAW_ARGS, help } /** mechanism for declaring a directive with raw argument parsing */ # define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \ { directive, { .raw_args=func }, mconfig, where, RAW_ARGS, help } /** mechanism for declaring a directive with raw argument parsing */ # define AP_INIT_TAKE_ARGV(directive, func, mconfig, where, help) \ { directive, { .take_argv=func }, mconfig, where, TAKE_ARGV, help } /** mechanism for declaring a directive which takes 1 argument */ # define AP_INIT_TAKE1(directive, func, mconfig, where, help) \ { directive, { .take1=func }, mconfig, where, TAKE1, help } /** mechanism for declaring a directive which takes multiple arguments */ # define AP_INIT_ITERATE(directive, func, mconfig, where, help) \ { directive, { .take1=func }, mconfig, where, ITERATE, help } /** mechanism for declaring a directive which takes 2 arguments */ # define AP_INIT_TAKE2(directive, func, mconfig, where, help) \ { directive, { .take2=func }, mconfig, where, TAKE2, help } /** mechanism for declaring a directive which takes 1 or 2 arguments */ # define AP_INIT_TAKE12(directive, func, mconfig, where, help) \ { directive, { .take2=func }, mconfig, where, TAKE12, help } /** mechanism for declaring a directive which takes multiple 2 arguments */ # define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \ { directive, { .take2=func }, mconfig, where, ITERATE2, help } /** mechanism for declaring a directive which takes 1 or 3 arguments */ # define AP_INIT_TAKE13(directive, func, mconfig, where, help) \ { directive, { .take3=func }, mconfig, where, TAKE13, help } /** mechanism for declaring a directive which takes 2 or 3 arguments */ # define AP_INIT_TAKE23(directive, func, mconfig, where, help) \ { directive, { .take3=func }, mconfig, where, TAKE23, help } /** mechanism for declaring a directive which takes 1 to 3 arguments */ # define AP_INIT_TAKE123(directive, func, mconfig, where, help) \ { directive, { .take3=func }, mconfig, where, TAKE123, help } /** mechanism for declaring a directive which takes 3 arguments */ # define AP_INIT_TAKE3(directive, func, mconfig, where, help) \ { directive, { .take3=func }, mconfig, where, TAKE3, help } /** mechanism for declaring a directive which takes a flag (on/off) argument */ # define AP_INIT_FLAG(directive, func, mconfig, where, help) \ { directive, { .flag=func }, mconfig, where, FLAG, help } #else /* AP_HAVE_DESIGNATED_INITIALIZER */ typedef const char *(*cmd_func) (); # define AP_NO_ARGS func # define AP_RAW_ARGS func # define AP_TAKE_ARGV func # define AP_TAKE1 func # define AP_TAKE2 func # define AP_TAKE3 func # define AP_FLAG func # define AP_INIT_NO_ARGS(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, RAW_ARGS, help } # define AP_INIT_RAW_ARGS(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, RAW_ARGS, help } # define AP_INIT_TAKE_ARGV(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE_ARGV, help } # define AP_INIT_TAKE1(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE1, help } # define AP_INIT_ITERATE(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, ITERATE, help } # define AP_INIT_TAKE2(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE2, help } # define AP_INIT_TAKE12(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE12, help } # define AP_INIT_ITERATE2(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, ITERATE2, help } # define AP_INIT_TAKE13(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE13, help } # define AP_INIT_TAKE23(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE23, help } # define AP_INIT_TAKE123(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE123, help } # define AP_INIT_TAKE3(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, TAKE3, help } # define AP_INIT_FLAG(directive, func, mconfig, where, help) \ { directive, func, mconfig, where, FLAG, help } #endif /* AP_HAVE_DESIGNATED_INITIALIZER */ /** * The command record structure. Modules can define a table of these * to define the directives it will implement. */ typedef struct command_struct command_rec; struct command_struct { /** Name of this command */ const char *name; /** The function to be called when this directive is parsed */ cmd_func func; /** Extra data, for functions which implement multiple commands... */ void *cmd_data; /** What overrides need to be allowed to enable this command. */ int req_override; /** What the command expects as arguments */ enum cmd_how args_how; /** 'usage' message, in case of syntax errors */ const char *errmsg; }; /** * @defgroup ConfigDirectives Allowed locations for configuration directives. * * The allowed locations for a configuration directive are the union of * those indicated by each set bit in the req_override mask. * * @{ */ #define OR_NONE 0 /**< *.conf is not available anywhere in this override */ #define OR_LIMIT 1 /**< *.conf inside <Directory> or <Location> and .htaccess when AllowOverride Limit */ #define OR_OPTIONS 2 /**< *.conf anywhere and .htaccess when AllowOverride Options */ #define OR_FILEINFO 4 /**< *.conf anywhere and .htaccess when AllowOverride FileInfo */ #define OR_AUTHCFG 8 /**< *.conf inside <Directory> or <Location> and .htaccess when AllowOverride AuthConfig */ #define OR_INDEXES 16 /**< *.conf anywhere and .htaccess when AllowOverride Indexes */ #define OR_UNSET 32 /**< bit to indicate that AllowOverride has not been set */ #define ACCESS_CONF 64 /**< *.conf inside <Directory> or <Location> */ #define RSRC_CONF 128 /**< *.conf outside <Directory> or <Location> */ #define EXEC_ON_READ 256 /**< force directive to execute a command which would modify the configuration (like including another file, or IFModule */ /* Flags to determine whether syntax errors in .htaccess should be * treated as nonfatal (log and ignore errors) */ #define NONFATAL_OVERRIDE 512 /* Violation of AllowOverride rule */ #define NONFATAL_UNKNOWN 1024 /* Unrecognised directive */ #define NONFATAL_ALL (NONFATAL_OVERRIDE|NONFATAL_UNKNOWN) #define PROXY_CONF 2048 /**< *.conf inside <Proxy> only */ /** this directive can be placed anywhere */ #define OR_ALL (OR_LIMIT|OR_OPTIONS|OR_FILEINFO|OR_AUTHCFG|OR_INDEXES) /** @} */ /** * This can be returned by a function if they don't wish to handle * a command. Make it something not likely someone will actually use * as an error code. */ #define DECLINE_CMD "\a\b" /** Common structure for reading of config files / passwd files etc. */ typedef struct ap_configfile_t ap_configfile_t; struct ap_configfile_t { /**< an apr_file_getc()-like function */ apr_status_t (*getch) (char *ch, void *param); /**< an apr_file_gets()-like function */ apr_status_t (*getstr) (void *buf, apr_size_t bufsiz, void *param); /**< a close handler function */ apr_status_t (*close) (void *param); /**< the argument passed to getch/getstr/close */ void *param; /**< the filename / description */ const char *name; /**< current line number, starting at 1 */ unsigned line_number; }; /** * This structure is passed to a command which is being invoked, * to carry a large variety of miscellaneous data which is all of * use to *somebody*... */ struct cmd_parms_struct { /** Argument to command from cmd_table */ void *info; /** Which allow-override bits are set */ int override; /** Which allow-override-opts bits are set */ int override_opts; /** Table of directives allowed per AllowOverrideList */ apr_table_t *override_list; /** Which methods are <Limit>ed */ apr_int64_t limited; /** methods which are limited */ apr_array_header_t *limited_xmethods; /** methods which are xlimited */ ap_method_list_t *xlimited; /** Config file structure. */ ap_configfile_t *config_file; /** the directive specifying this command */ ap_directive_t *directive; /** Pool to allocate new storage in */ apr_pool_t *pool; /** Pool for scratch memory; persists during configuration, but * wiped before the first request is served... */ apr_pool_t *temp_pool; /** Server_rec being configured for */ server_rec *server; /** If configuring for a directory, pathname of that directory. * NOPE! That's what it meant previous to the existence of <Files>, * <Location> and regex matching. Now the only usefulness that can be * derived from this field is whether a command is being called in a * server context (path == NULL) or being called in a dir context * (path != NULL). */ char *path; /** configuration command */ const command_rec *cmd; /** per_dir_config vector passed to handle_command */ struct ap_conf_vector_t *context; /** directive with syntax error */ const ap_directive_t *err_directive; }; /** * Flags associated with a module. */ #define AP_MODULE_FLAG_NONE (0) #define AP_MODULE_FLAG_ALWAYS_MERGE (1 << 0) /** * Module structures. Just about everything is dispatched through * these, directly or indirectly (through the command and handler * tables). */ typedef struct module_struct module; struct module_struct { /** API version, *not* module version; check that module is * compatible with this version of the server. */ int version; /** API minor version. Provides API feature milestones. Not checked * during module init */ int minor_version; /** Index to this modules structures in config vectors. */ int module_index; /** The name of the module's C file */ const char *name; /** The handle for the DSO. Internal use only */ void *dynamic_load_handle; /** A pointer to the next module in the list * @var module_struct *next */ struct module_struct *next; /** Magic Cookie to identify a module structure; It's mainly * important for the DSO facility (see also mod_so). */ unsigned long magic; /** Function to allow MPMs to re-write command line arguments. This * hook is only available to MPMs. * @param The process that the server is running in. */ void (*rewrite_args) (process_rec *process); /** Function to allow all modules to create per directory configuration * structures. * @param p The pool to use for all allocations. * @param dir The directory currently being processed. * @return The per-directory structure created */ void *(*create_dir_config) (apr_pool_t *p, char *dir); /** Function to allow all modules to merge the per directory configuration * structures for two directories. * @param p The pool to use for all allocations. * @param base_conf The directory structure created for the parent directory. * @param new_conf The directory structure currently being processed. * @return The new per-directory structure created */ void *(*merge_dir_config) (apr_pool_t *p, void *base_conf, void *new_conf); /** Function to allow all modules to create per server configuration * structures. * @param p The pool to use for all allocations. * @param s The server currently being processed. * @return The per-server structure created */ void *(*create_server_config) (apr_pool_t *p, server_rec *s); /** Function to allow all modules to merge the per server configuration * structures for two servers. * @param p The pool to use for all allocations. * @param base_conf The directory structure created for the parent directory. * @param new_conf The directory structure currently being processed. * @return The new per-directory structure created */ void *(*merge_server_config) (apr_pool_t *p, void *base_conf, void *new_conf); /** A command_rec table that describes all of the directives this module * defines. */ const command_rec *cmds; /** A hook to allow modules to hook other points in the request processing. * In this function, modules should call the ap_hook_*() functions to * register an interest in a specific step in processing the current * request. * @param p the pool to use for all allocations */ void (*register_hooks) (apr_pool_t *p); /** A bitmask of AP_MODULE_FLAG_* */ int flags; }; /** * The AP_MAYBE_UNUSED macro is used for variable declarations that * might potentially exhibit "unused var" warnings on some compilers if * left untreated. * Since static intializers are not part of the C language (C89), making * (void) usage is not possible. However many compiler have proprietary * mechanism to suppress those warnings. */ #ifdef AP_MAYBE_UNUSED #elif defined(__GNUC__) # define AP_MAYBE_UNUSED(x) x __attribute__((unused)) #elif defined(__LCLINT__) # define AP_MAYBE_UNUSED(x) /*@unused@*/ x #else # define AP_MAYBE_UNUSED(x) x #endif /** * The APLOG_USE_MODULE macro is used choose which module a file belongs to. * This is necessary to allow per-module loglevel configuration. * * APLOG_USE_MODULE indirectly sets APLOG_MODULE_INDEX and APLOG_MARK. * * If a module should be backward compatible with versions before 2.3.6, * APLOG_USE_MODULE needs to be enclosed in a ifdef APLOG_USE_MODULE block. * * @param foo name of the module symbol of the current module, without the * trailing "_module" part * @see APLOG_MARK */ #define APLOG_USE_MODULE(foo) \ extern module AP_MODULE_DECLARE_DATA foo##_module; \ AP_MAYBE_UNUSED(static int * const aplog_module_index) = &(foo##_module.module_index) /** * AP_DECLARE_MODULE is a convenience macro that combines a call of * APLOG_USE_MODULE with the definition of the module symbol. * * If a module should be backward compatible with versions before 2.3.6, * APLOG_USE_MODULE should be used explicitly instead of AP_DECLARE_MODULE. */ #define AP_DECLARE_MODULE(foo) \ APLOG_USE_MODULE(foo); \ module AP_MODULE_DECLARE_DATA foo##_module /** * @defgroup ModuleInit Module structure initializers * * Initializer for the first few module slots, which are only * really set up once we start running. Note that the first two slots * provide a version check; this should allow us to deal with changes to * the API. The major number should reflect changes to the API handler table * itself or removal of functionality. The minor number should reflect * additions of functionality to the existing API. (the server can detect * an old-format module, and either handle it back-compatibly, or at least * signal an error). See src/include/ap_mmn.h for MMN version history. * @{ */ /** The one used in Apache 1.3, which will deliberately cause an error */ #define STANDARD_MODULE_STUFF this_module_needs_to_be_ported_to_apache_2_0 /** Use this in all standard modules */ #define STANDARD20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \ MODULE_MAGIC_NUMBER_MINOR, \ -1, \ __FILE__, \ NULL, \ NULL, \ MODULE_MAGIC_COOKIE, \ NULL /* rewrite args spot */ /** Use this only in MPMs */ #define MPM20_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \ MODULE_MAGIC_NUMBER_MINOR, \ -1, \ __FILE__, \ NULL, \ NULL, \ MODULE_MAGIC_COOKIE /** @} */ /* CONFIGURATION VECTOR FUNCTIONS */ /** configuration vector structure */ typedef struct ap_conf_vector_t ap_conf_vector_t; /** * Generic accessors for other modules to get at their own module-specific * data * @param cv The vector in which the modules configuration is stored. * usually r->per_dir_config or s->module_config * @param m The module to get the data for. * @return The module-specific data */ AP_DECLARE(void *) ap_get_module_config(const ap_conf_vector_t *cv, const module *m); /** * Generic accessors for other modules to set their own module-specific * data * @param cv The vector in which the modules configuration is stored. * usually r->per_dir_config or s->module_config * @param m The module to set the data for. * @param val The module-specific data to set */ AP_DECLARE(void) ap_set_module_config(ap_conf_vector_t *cv, const module *m, void *val); /** * When module flags have been introduced, and a way to check this. */ #define AP_MODULE_FLAGS_MMN_MAJOR 20120211 #define AP_MODULE_FLAGS_MMN_MINOR 70 #define AP_MODULE_HAS_FLAGS(m) \ AP_MODULE_MAGIC_AT_LEAST(AP_MODULE_FLAGS_MMN_MAJOR, \ AP_MODULE_FLAGS_MMN_MINOR) /** * Generic accessor for the module's flags * @param m The module to get the flags from. * @return The module-specific flags */ AP_DECLARE(int) ap_get_module_flags(const module *m); #if !defined(AP_DEBUG) #define ap_get_module_config(v,m) \ (((void **)(v))[(m)->module_index]) #define ap_set_module_config(v,m,val) \ ((((void **)(v))[(m)->module_index]) = (val)) #endif /* AP_DEBUG */ /** * Generic accessor for modules to get the module-specific loglevel * @param s The server from which to get the loglevel. * @param index The module_index of the module to get the loglevel for. * @return The module-specific loglevel */ AP_DECLARE(int) ap_get_server_module_loglevel(const server_rec *s, int index); /** * Generic accessor for modules the module-specific loglevel * @param c The connection from which to get the loglevel. * @param index The module_index of the module to get the loglevel for. * @return The module-specific loglevel */ AP_DECLARE(int) ap_get_conn_module_loglevel(const conn_rec *c, int index); /** * Generic accessor for modules the module-specific loglevel * @param c The connection from which to get the loglevel. * @param s The server from which to get the loglevel if c does not have a * specific loglevel configuration. * @param index The module_index of the module to get the loglevel for. * @return The module-specific loglevel */ AP_DECLARE(int) ap_get_conn_server_module_loglevel(const conn_rec *c, const server_rec *s, int index); /** * Generic accessor for modules to get the module-specific loglevel * @param r The request from which to get the loglevel. * @param index The module_index of the module to get the loglevel for. * @return The module-specific loglevel */ AP_DECLARE(int) ap_get_request_module_loglevel(const request_rec *r, int index); /** * Accessor to set module-specific loglevel * @param p A pool * @param l The ap_logconf struct to modify. * @param index The module_index of the module to set the loglevel for. * @param level The new log level */ AP_DECLARE(void) ap_set_module_loglevel(apr_pool_t *p, struct ap_logconf *l, int index, int level); #if !defined(AP_DEBUG) #define ap_get_conn_logconf(c) \ ((c)->log ? (c)->log : \ &(c)->base_server->log) #define ap_get_conn_server_logconf(c,s) \ ( ( (c)->log != &(c)->base_server->log && (c)->log != NULL ) ? \ (c)->log : \ &(s)->log ) #define ap_get_request_logconf(r) \ ((r)->log ? (r)->log : \ (r)->connection->log ? (r)->connection->log : \ &(r)->server->log) #define ap_get_module_loglevel(l,i) \ (((i) < 0 || (l)->module_levels == NULL || (l)->module_levels[i] < 0) ? \ (l)->level : \ (l)->module_levels[i]) #define ap_get_server_module_loglevel(s,i) \ (ap_get_module_loglevel(&(s)->log,i)) #define ap_get_conn_module_loglevel(c,i) \ (ap_get_module_loglevel(ap_get_conn_logconf(c),i)) #define ap_get_conn_server_module_loglevel(c,s,i) \ (ap_get_module_loglevel(ap_get_conn_server_logconf(c,s),i)) #define ap_get_request_module_loglevel(r,i) \ (ap_get_module_loglevel(ap_get_request_logconf(r),i)) #endif /* AP_DEBUG */ /** * Set all module-specific loglevels to val * @param l The log config for which to set the loglevels. * @param val the value to set all loglevels to */ AP_DECLARE(void) ap_reset_module_loglevels(struct ap_logconf *l, int val); /** * Generic command handling function for strings * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd, void *struct_ptr, const char *arg); /** * Generic command handling function for integers * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_int_slot(cmd_parms *cmd, void *struct_ptr, const char *arg); /** * Parsing function for log level * @param str The string to parse * @param val The parsed log level * @return An error string or NULL on success */ AP_DECLARE(const char *) ap_parse_log_level(const char *str, int *val); /** * Return true if the specified method is limited by being listed in * a <Limit> container, or by *not* being listed in a <LimitExcept> * container. * * @param method Pointer to a string specifying the method to check. * @param cmd Pointer to the cmd_parms structure passed to the * directive handler. * @return 0 if the method is not limited in the current scope */ AP_DECLARE(int) ap_method_is_limited(cmd_parms *cmd, const char *method); /** * Generic command handling function for strings, always sets the value * to a lowercase string * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd, void *struct_ptr, const char *arg); /** * Generic command handling function for flags stored in an int * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive (either 1 or 0) * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd, void *struct_ptr, int arg); /** * Generic command handling function for flags stored in a char * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive (either 1 or 0) * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_flag_slot_char(cmd_parms *cmd, void *struct_ptr, int arg); /** * Generic command handling function for files * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive * @return An error string or NULL on success */ AP_DECLARE_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd, void *struct_ptr, const char *arg); /** * Generic command handling function to respond with cmd->help as an error * @param cmd The command parameters for this directive * @param struct_ptr pointer into a given type * @param arg The argument to the directive * @return The cmd->help value as the error string * @note This allows simple declarations such as: * @code * AP_INIT_RAW_ARGS("Foo", ap_set_deprecated, NULL, OR_ALL, * "The Foo directive is no longer supported, use Bar"), * @endcode */ AP_DECLARE_NONSTD(const char *) ap_set_deprecated(cmd_parms *cmd, void *struct_ptr, const char *arg); /** * For modules which need to read config files, open logs, etc. this returns * the canonical form of fname made absolute to ap_server_root. * @param p pool to allocate data from * @param fname The file name */ AP_DECLARE(char *) ap_server_root_relative(apr_pool_t *p, const char *fname); /** * Compute the name of a run-time file (e.g., shared memory "file") relative * to the appropriate run-time directory. Absolute paths are returned as-is. * The run-time directory is configured via the DefaultRuntimeDir directive or * at build time. */ AP_DECLARE(char *) ap_runtime_dir_relative(apr_pool_t *p, const char *fname); /* Finally, the hook for dynamically loading modules in... */ /** * Add a module to the server * @param m The module structure of the module to add * @param p The pool of the same lifetime as the module * @param s The module's symbol name (used for logging) */ AP_DECLARE(const char *) ap_add_module(module *m, apr_pool_t *p, const char *s); /** * Remove a module from the server. There are some caveats: * when the module is removed, its slot is lost so all the current * per-dir and per-server configurations are invalid. So we should * only ever call this function when you are invalidating almost * all our current data. I.e. when doing a restart. * @param m the module structure of the module to remove */ AP_DECLARE(void) ap_remove_module(module *m); /** * Add a module to the chained modules list and the list of loaded modules * @param mod The module structure of the module to add * @param p The pool with the same lifetime as the module * @param s The module's symbol name (used for logging) */ AP_DECLARE(const char *) ap_add_loaded_module(module *mod, apr_pool_t *p, const char *s); /** * Remove a module from the chained modules list and the list of loaded modules * @param mod the module structure of the module to remove */ AP_DECLARE(void) ap_remove_loaded_module(module *mod); /** * Find the name of the specified module * @param m The module to get the name for * @return the name of the module */ AP_DECLARE(const char *) ap_find_module_name(module *m); /** * Find the short name of the module identified by the specified module index * @param module_index The module index to get the name for * @return the name of the module, NULL if not found */ AP_DECLARE(const char *) ap_find_module_short_name(int module_index); /** * Find a module based on the name of the module * @param name the name of the module * @return the module structure if found, NULL otherwise */ AP_DECLARE(module *) ap_find_linked_module(const char *name); /** * Open a ap_configfile_t as apr_file_t * @param ret_cfg open ap_configfile_t struct pointer * @param p The pool to allocate the structure from * @param name the name of the file to open */ AP_DECLARE(apr_status_t) ap_pcfg_openfile(ap_configfile_t **ret_cfg, apr_pool_t *p, const char *name); /** * Allocate a ap_configfile_t handle with user defined functions and params * @param p The pool to allocate from * @param descr The name of the file * @param param The argument passed to getch/getstr/close * @param getc_func The getch function * @param gets_func The getstr function * @param close_func The close function */ AP_DECLARE(ap_configfile_t *) ap_pcfg_open_custom(apr_pool_t *p, const char *descr, void *param, apr_status_t (*getc_func) (char *ch, void *param), apr_status_t (*gets_func) (void *buf, apr_size_t bufsiz, void *param), apr_status_t (*close_func) (void *param)); /** * Read one line from open ap_configfile_t, strip leading and trailing * whitespace, increase line number * @param buf place to store the line read * @param bufsize size of the buffer * @param cfp File to read from * @return error status, APR_ENOSPC if bufsize is too small for the line */ AP_DECLARE(apr_status_t) ap_cfg_getline(char *buf, apr_size_t bufsize, ap_configfile_t *cfp); /** * Read one char from open configfile_t, increase line number upon LF * @param ch place to store the char read * @param cfp The file to read from * @return error status */ AP_DECLARE(apr_status_t) ap_cfg_getc(char *ch, ap_configfile_t *cfp); /** * Detach from open ap_configfile_t, calling the close handler * @param cfp The file to close * @return 1 on success, 0 on failure */ AP_DECLARE(int) ap_cfg_closefile(ap_configfile_t *cfp); /** * Convert a return value from ap_cfg_getline or ap_cfg_getc to a user friendly * string. * @param p The pool to allocate the string from * @param cfp The config file * @param rc The return value to convert * @return The error string, NULL if rc == APR_SUCCESS */ AP_DECLARE(const char *) ap_pcfg_strerror(apr_pool_t *p, ap_configfile_t *cfp, apr_status_t rc); /** * Read all data between the current <foo> and the matching </foo>. All * of this data is forgotten immediately. * @param cmd The cmd_parms to pass to the directives inside the container * @param directive The directive name to read until * @return Error string on failure, NULL on success * @note If cmd->pool == cmd->temp_pool, ap_soak_end_container() will assume * .htaccess context and use a lower maximum line length. */ AP_DECLARE(const char *) ap_soak_end_container(cmd_parms *cmd, char *directive); /** * Read all data between the current <foo> and the matching </foo> and build * a config tree from it * @param p pool to allocate from * @param temp_pool Temporary pool to allocate from * @param parms The cmd_parms to pass to all directives read * @param current The current node in the tree * @param curr_parent The current parent node * @param orig_directive The directive to read until hit. * @return Error string on failure, NULL on success * @note If p == temp_pool, ap_build_cont_config() will assume .htaccess * context and use a lower maximum line length. */ AP_DECLARE(const char *) ap_build_cont_config(apr_pool_t *p, apr_pool_t *temp_pool, cmd_parms *parms, ap_directive_t **current, ap_directive_t **curr_parent, char *orig_directive); /** * Build a config tree from a config file * @param parms The cmd_parms to pass to all of the directives in the file * @param conf_pool The pconf pool * @param temp_pool The temporary pool * @param conftree Place to store the root node of the config tree * @return Error string on error, NULL otherwise * @note If conf_pool == temp_pool, ap_build_config() will assume .htaccess * context and use a lower maximum line length. */ AP_DECLARE(const char *) ap_build_config(cmd_parms *parms, apr_pool_t *conf_pool, apr_pool_t *temp_pool, ap_directive_t **conftree); /** * Walk a config tree and setup the server's internal structures * @param conftree The config tree to walk * @param parms The cmd_parms to pass to all functions * @param section_vector The per-section config vector. * @return Error string on error, NULL otherwise */ AP_DECLARE(const char *) ap_walk_config(ap_directive_t *conftree, cmd_parms *parms, ap_conf_vector_t *section_vector); /** * Convenience function to create a ap_dir_match_t structure from a cmd_parms. * * @param cmd The command. * @param flags Flags to indicate whether optional or recursive. * @param cb Callback for each file found that matches the wildcard. Return NULL on * success, an error string on error. * @param ctx Context for the callback. * @return Structure ap_dir_match_t with fields populated, allocated from the * cmd->temp_pool. */ AP_DECLARE(ap_dir_match_t *)ap_dir_cfgmatch(cmd_parms *cmd, int flags, const char *(*cb)(ap_dir_match_t *w, const char *fname), void *ctx) __attribute__((nonnull(1,3))); /** * @defgroup ap_check_cmd_context Check command context * @{ */ /** * Check the context a command is used in. * @param cmd The command to check * @param forbidden Where the command is forbidden. * @return Error string on error, NULL on success */ AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd, unsigned forbidden); #define NOT_IN_VIRTUALHOST 0x01 /**< Forbidden in <VirtualHost> */ #define NOT_IN_LIMIT 0x02 /**< Forbidden in <Limit> */ #define NOT_IN_DIRECTORY 0x04 /**< Forbidden in <Directory> */ #define NOT_IN_LOCATION 0x08 /**< Forbidden in <Location> */ #define NOT_IN_FILES 0x10 /**< Forbidden in <Files> or <If>*/ #define NOT_IN_HTACCESS 0x20 /**< Forbidden in .htaccess files */ #define NOT_IN_PROXY 0x40 /**< Forbidden in <Proxy> */ /** Forbidden in <Directory>/<Location>/<Files><If>*/ #define NOT_IN_DIR_LOC_FILE (NOT_IN_DIRECTORY|NOT_IN_LOCATION|NOT_IN_FILES) /** Forbidden in <Directory>/<Location>/<Files><If><Proxy>*/ #define NOT_IN_DIR_CONTEXT (NOT_IN_LIMIT|NOT_IN_DIR_LOC_FILE|NOT_IN_PROXY) /** Forbidden in <VirtualHost>/<Limit>/<Directory>/<Location>/<Files>/<If><Proxy>*/ #define GLOBAL_ONLY (NOT_IN_VIRTUALHOST|NOT_IN_DIR_CONTEXT) /** @} */ /** * @brief This structure is used to assign symbol names to module pointers */ typedef struct { const char *name; module *modp; } ap_module_symbol_t; /** * The topmost module in the list * @var module *ap_top_module */ AP_DECLARE_DATA extern module *ap_top_module; /** * Array of all statically linked modules * @var module *ap_prelinked_modules[] */ AP_DECLARE_DATA extern module *ap_prelinked_modules[]; /** * Array of all statically linked modulenames (symbols) * @var ap_module_symbol_t ap_prelinked_module_symbols[] */ AP_DECLARE_DATA extern ap_module_symbol_t ap_prelinked_module_symbols[]; /** * Array of all preloaded modules * @var module *ap_preloaded_modules[] */ AP_DECLARE_DATA extern module *ap_preloaded_modules[]; /** * Array of all loaded modules * @var module **ap_loaded_modules */ AP_DECLARE_DATA extern module **ap_loaded_modules; /* For mod_so.c... */ /** Run a single module's two create_config hooks * @param p the pool to allocate from * @param s The server to configure for. * @param m The module to configure */ AP_DECLARE(void) ap_single_module_configure(apr_pool_t *p, server_rec *s, module *m); /* For http_main.c... */ /** * Add all of the prelinked modules into the loaded module list * @param process The process that is currently running the server */ AP_DECLARE(const char *) ap_setup_prelinked_modules(process_rec *process); /** * Show the preloaded configuration directives, the help string explaining * the directive arguments, in what module they are handled, and in * what parts of the configuration they are allowed. Used for httpd -h. */ AP_DECLARE(void) ap_show_directives(void); /** * Returns non-zero if a configuration directive of the given name has * been registered by a module at the time of calling. * @param p Pool for temporary allocations * @param name Directive name */ AP_DECLARE(int) ap_exists_directive(apr_pool_t *p, const char *name); /** * Show the preloaded module names. Used for httpd -l. */ AP_DECLARE(void) ap_show_modules(void); /** * Show the MPM name. Used in reporting modules such as mod_info to * provide extra information to the user */ AP_DECLARE(const char *) ap_show_mpm(void); /** * Read all config files and setup the server * @param process The process running the server * @param temp_pool A pool to allocate temporary data from. * @param config_name The name of the config file * @param conftree Place to store the root of the config tree * @return The setup server_rec list. */ AP_DECLARE(server_rec *) ap_read_config(process_rec *process, apr_pool_t *temp_pool, const char *config_name, ap_directive_t **conftree); /** * Run all rewrite args hooks for loaded modules * @param process The process currently running the server */ AP_DECLARE(void) ap_run_rewrite_args(process_rec *process); /** * Run the register hooks function for a specified module * @param m The module to run the register hooks function from * @param p The pool valid for the lifetime of the module */ AP_DECLARE(void) ap_register_hooks(module *m, apr_pool_t *p); /** * Setup all virtual hosts * @param p The pool to allocate from * @param main_server The head of the server_rec list */ AP_DECLARE(void) ap_fixup_virtual_hosts(apr_pool_t *p, server_rec *main_server); /** * Reserve some modules slots for modules loaded by other means than * EXEC_ON_READ directives. * Relevant modules should call this in the pre_config stage. * @param count The number of slots to reserve. */ AP_DECLARE(void) ap_reserve_module_slots(int count); /** * Reserve some modules slots for modules loaded by a specific * non-EXEC_ON_READ config directive. * This counts how often the given directive is used in the config and calls * ap_reserve_module_slots() accordingly. * @param directive The name of the directive */ AP_DECLARE(void) ap_reserve_module_slots_directive(const char *directive); /* For http_request.c... */ /** * Setup the config vector for a request_rec * @param p The pool to allocate the config vector from * @return The config vector */ AP_DECLARE(ap_conf_vector_t*) ap_create_request_config(apr_pool_t *p); /** * Setup the config vector for per dir module configs * @param p The pool to allocate the config vector from * @return The config vector */ AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_per_dir_config(apr_pool_t *p); /** * Run all of the modules merge per dir config functions * @param p The pool to pass to the merge functions * @param base The base directory config structure * @param new_conf The new directory config structure */ AP_CORE_DECLARE(ap_conf_vector_t*) ap_merge_per_dir_configs(apr_pool_t *p, ap_conf_vector_t *base, ap_conf_vector_t *new_conf); /** * Allocate new ap_logconf and make (deep) copy of old ap_logconf * @param p The pool to alloc from * @param old The ap_logconf to copy (may be NULL) * @return The new ap_logconf struct */ AP_DECLARE(struct ap_logconf *) ap_new_log_config(apr_pool_t *p, const struct ap_logconf *old); /** * Merge old ap_logconf into new ap_logconf. * old and new must have the same life time. * @param old_conf The ap_logconf to merge from * @param new_conf The ap_logconf to merge into */ AP_DECLARE(void) ap_merge_log_config(const struct ap_logconf *old_conf, struct ap_logconf *new_conf); /* For http_connection.c... */ /** * Setup the config vector for a connection_rec * @param p The pool to allocate the config vector from * @return The config vector */ AP_CORE_DECLARE(ap_conf_vector_t*) ap_create_conn_config(apr_pool_t *p); /* For http_core.c... (<Directory> command and virtual hosts) */ /** * parse an htaccess file * @param result htaccess_result * @param r The request currently being served * @param override Which overrides are active * @param override_opts Which allow-override-opts bits are set * @param override_list Table of directives allowed for override * @param path The path to the htaccess file * @param access_name The list of possible names for .htaccess files * int The status of the current request */ AP_CORE_DECLARE(int) ap_parse_htaccess(ap_conf_vector_t **result, request_rec *r, int override, int override_opts, apr_table_t *override_list, const char *path, const char *access_name); /** * Setup a virtual host * @param p The pool to allocate all memory from * @param hostname The hostname of the virtual hsot * @param main_server The main server for this Apache configuration * @param ps Place to store the new server_rec * return Error string on error, NULL on success */ AP_CORE_DECLARE(const char *) ap_init_virtual_host(apr_pool_t *p, const char *hostname, server_rec *main_server, server_rec **ps); /** * Process a config file for Apache * @param s The server rec to use for the command parms * @param fname The name of the config file * @param conftree The root node of the created config tree * @param p Pool for general allocation * @param ptemp Pool for temporary allocation */ AP_DECLARE(const char *) ap_process_resource_config(server_rec *s, const char *fname, ap_directive_t **conftree, apr_pool_t *p, apr_pool_t *ptemp); /** * Process all matching files as Apache configs * @param s The server rec to use for the command parms * @param fname The filename pattern of the config file * @param conftree The root node of the created config tree * @param p Pool for general allocation * @param ptemp Pool for temporary allocation * @param optional Whether a no-match wildcard is allowed * @see apr_fnmatch for pattern handling */ AP_DECLARE(const char *) ap_process_fnmatch_configs(server_rec *s, const char *fname, ap_directive_t **conftree, apr_pool_t *p, apr_pool_t *ptemp, int optional); /** * Process all directives in the config tree * @param s The server rec to use in the command parms * @param conftree The config tree to process * @param p The pool for general allocation * @param ptemp The pool for temporary allocations * @return OK if no problems */ AP_DECLARE(int) ap_process_config_tree(server_rec *s, ap_directive_t *conftree, apr_pool_t *p, apr_pool_t *ptemp); /** * Store data which will be retained across unload/load of modules * @param key The unique key associated with this module's retained data * @param size in bytes of the retained data (to be allocated) * @return Address of new retained data structure, initially cleared */ AP_DECLARE(void *) ap_retained_data_create(const char *key, apr_size_t size); /** * Retrieve data which was stored by ap_retained_data_create() * @param key The unique key associated with this module's retained data * @return Address of previously retained data structure, or NULL if not yet saved */ AP_DECLARE(void *) ap_retained_data_get(const char *key); /* Module-method dispatchers, also for http_request.c */ /** * Run the handler phase of each module until a module accepts the * responsibility of serving the request * @param r The current request * @return The status of the current request */ AP_CORE_DECLARE(int) ap_invoke_handler(request_rec *r); /* for mod_perl */ /** * Find a given directive in a command_rec table * @param name The directive to search for * @param cmds The table to search * @return The directive definition of the specified directive */ AP_CORE_DECLARE(const command_rec *) ap_find_command(const char *name, const command_rec *cmds); /** * Find a given directive in a list of modules. * @param cmd_name The directive to search for * @param mod Pointer to the first module in the linked list; will be set to * the module providing cmd_name * @return The directive definition of the specified directive. * *mod will be changed to point to the module containing the * directive. */ AP_CORE_DECLARE(const command_rec *) ap_find_command_in_modules(const char *cmd_name, module **mod); /** * Ask a module to create per-server and per-section (dir/loc/file) configs * (if it hasn't happened already). The results are stored in the server's * config, and the specified per-section config vector. * @param server The server to operate upon. * @param section_vector The per-section config vector. * @param section Which section to create a config for. * @param mod The module which is defining the config data. * @param pconf A pool for all configuration allocations. * @return The (new) per-section config data. */ AP_CORE_DECLARE(void *) ap_set_config_vectors(server_rec *server, ap_conf_vector_t *section_vector, const char *section, module *mod, apr_pool_t *pconf); /* Hooks */ /** * Run the header parser functions for each module * @param r The current request * @return OK or DECLINED * @ingroup hooks */ AP_DECLARE_HOOK(int,header_parser,(request_rec *r)) /** * Run the pre_config function for each module * @param pconf The config pool * @param plog The logging streams pool * @param ptemp The temporary pool * @return OK or DECLINED on success anything else is a error * @ingroup hooks */ AP_DECLARE_HOOK(int,pre_config,(apr_pool_t *pconf,apr_pool_t *plog, apr_pool_t *ptemp)) /** * Run the check_config function for each module * @param pconf The config pool * @param plog The logging streams pool * @param ptemp The temporary pool * @param s the server to operate upon * @return OK or DECLINED on success anything else is a error * @ingroup hooks */ AP_DECLARE_HOOK(int,check_config,(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)) /** * Run the test_config function for each module; this hook is run * only if the server was invoked to test the configuration syntax. * @param pconf The config pool * @param s The list of server_recs * @note To avoid reordering problems due to different buffering, hook * functions should only apr_file_*() to print to stdout/stderr and * not simple printf()/fprintf(). * @ingroup hooks */ AP_DECLARE_HOOK(void,test_config,(apr_pool_t *pconf, server_rec *s)) /** * Run the post_config function for each module * * The function might be called multiple times. @a pconf, @a plog, and * @a ptemp may be cleared and/or destroyed between calls. * * The function will be called zero or one times with the server's state being * #AP_SQ_MS_CREATE_PRE_CONFIG, and will be called one or more times with * the server's state being #AP_SQ_MS_CREATE_CONFIG. * * @see ap_state_query(), #AP_SQ_MAIN_STATE * * @param pconf The config pool * @param plog The logging streams pool * @param ptemp The temporary pool * @param s The list of server_recs * @return OK or DECLINED on success anything else is a error * @ingroup hooks */ AP_DECLARE_HOOK(int,post_config,(apr_pool_t *pconf,apr_pool_t *plog, apr_pool_t *ptemp,server_rec *s)) /** * Run the open_logs functions for each module * @param pconf The config pool * @param plog The logging streams pool * @param ptemp The temporary pool * @param s The list of server_recs * @return OK or DECLINED on success anything else is a error * @ingroup hooks */ AP_DECLARE_HOOK(int,open_logs,(apr_pool_t *pconf,apr_pool_t *plog, apr_pool_t *ptemp,server_rec *s)) /** * Run the child_init functions for each module * @param pchild The child pool * @param s The list of server_recs in this server * @ingroup hooks */ AP_DECLARE_HOOK(void,child_init,(apr_pool_t *pchild, server_rec *s)) /** * Run the handler functions for each module * @param r The request_rec * @remark non-wildcard handlers should HOOK_MIDDLE, wildcard HOOK_LAST * @ingroup hooks */ AP_DECLARE_HOOK(int,handler,(request_rec *r)) /** * Run the quick handler functions for each module. The quick_handler * is run before any other requests hooks are called (location_walk, * directory_walk, access checking, et. al.). This hook was added * to provide a quick way to serve content from a URI keyed cache. * * @param r The request_rec * @param lookup_uri Controls whether the caller actually wants content or not. * lookup is set when the quick_handler is called out of * ap_sub_req_lookup_uri() * @ingroup hooks */ AP_DECLARE_HOOK(int,quick_handler,(request_rec *r, int lookup_uri)) /** * Retrieve the optional functions for each module. * This is run immediately before the server starts. Optional functions should * be registered during the hook registration phase. * @ingroup hooks */ AP_DECLARE_HOOK(void,optional_fn_retrieve,(void)) /** * Allow modules to open htaccess files or perform operations before doing so * @param r The current request * @param dir_name The directory for which the htaccess file should be opened * @param access_name The filename for which the htaccess file should be opened * @param conffile Where the pointer to the opened ap_configfile_t must be * stored * @param full_name Where the full file name of the htaccess file must be * stored. * @return APR_SUCCESS on success, * APR_ENOENT or APR_ENOTDIR if no htaccess file exists, * AP_DECLINED to let later modules do the opening, * any other error code on error. * @ingroup hooks */ AP_DECLARE_HOOK(apr_status_t,open_htaccess, (request_rec *r, const char *dir_name, const char *access_name, ap_configfile_t **conffile, const char **full_name)) /** * Core internal function, use ap_run_open_htaccess() instead. */ apr_status_t ap_open_htaccess(request_rec *r, const char *dir_name, const char *access_name, ap_configfile_t **conffile, const char **full_name); /** * A generic pool cleanup that will reset a pointer to NULL. For use with * apr_pool_cleanup_register. * @param data The address of the pointer * @return APR_SUCCESS */ AP_DECLARE_NONSTD(apr_status_t) ap_pool_cleanup_set_null(void *data); #ifdef __cplusplus } #endif #endif /* !APACHE_HTTP_CONFIG_H */ /** @} */
/home/sudancam/../../usr/include/fontconfig/../apache2/http_config.h