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Diffstat (limited to 'modules/md/md_reg.h')
| -rw-r--r-- | modules/md/md_reg.h | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/modules/md/md_reg.h b/modules/md/md_reg.h new file mode 100644 index 0000000..58ee16a --- /dev/null +++ b/modules/md/md_reg.h @@ -0,0 +1,313 @@ +/* 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. + */ + +#ifndef mod_md_md_reg_h +#define mod_md_md_reg_h + +struct apr_hash_t; +struct apr_array_header_t; +struct md_pkey_t; +struct md_cert_t; +struct md_result_t; +struct md_pkey_spec_t; + +#include "md_store.h" + +/** + * A registry for managed domains with a md_store_t as persistence. + * + */ +typedef struct md_reg_t md_reg_t; + +/** + * Create the MD registry, using the pool and store. + * @param preg on APR_SUCCESS, the create md_reg_t + * @param pm memory pool to use for creation + * @param store the store to base on + * @param proxy_url optional URL of a proxy to use for requests + * @param ca_file optioinal CA trust anchor file to use + * @param min_delay minimum delay between renewal attempts for a domain + * @param retry_failover numer of failed renewals attempt to fail over to alternate ACME ca + */ +apr_status_t md_reg_create(md_reg_t **preg, apr_pool_t *pm, md_store_t *store, + const char *proxy_url, const char *ca_file, + apr_time_t min_delay, int retry_failover, + int use_store_locks, apr_time_t lock_wait_timeout); + +md_store_t *md_reg_store_get(md_reg_t *reg); + +apr_status_t md_reg_set_props(md_reg_t *reg, apr_pool_t *p, int can_http, int can_https); + +/** + * Add a new md to the registry. This will check the name for uniqueness and + * that domain names do not overlap with already existing mds. + */ +apr_status_t md_reg_add(md_reg_t *reg, md_t *md, apr_pool_t *p); + +/** + * Find the md, if any, that contains the given domain name. + * NULL if none found. + */ +md_t *md_reg_find(md_reg_t *reg, const char *domain, apr_pool_t *p); + +/** + * Find one md, which domain names overlap with the given md and that has a different + * name. There may be more than one existing md that overlaps. It is not defined + * which one will be returned. + */ +md_t *md_reg_find_overlap(md_reg_t *reg, const md_t *md, const char **pdomain, apr_pool_t *p); + +/** + * Get the md with the given unique name. NULL if it does not exist. + * Will update the md->state. + */ +md_t *md_reg_get(md_reg_t *reg, const char *name, apr_pool_t *p); + +/** + * Callback invoked for every md in the registry. If 0 is returned, iteration stops. + */ +typedef int md_reg_do_cb(void *baton, md_reg_t *reg, md_t *md); + +/** + * Invoke callback for all mds in this registry. Order is not guaranteed. + * If the callback returns 0, iteration stops. Returns 0 if iteration was + * aborted. + */ +int md_reg_do(md_reg_do_cb *cb, void *baton, md_reg_t *reg, apr_pool_t *p); + +/** + * Bitmask for fields that are updated. + */ +#define MD_UPD_DOMAINS 0x00001 +#define MD_UPD_CA_URL 0x00002 +#define MD_UPD_CA_PROTO 0x00004 +#define MD_UPD_CA_ACCOUNT 0x00008 +#define MD_UPD_CONTACTS 0x00010 +#define MD_UPD_AGREEMENT 0x00020 +#define MD_UPD_DRIVE_MODE 0x00080 +#define MD_UPD_RENEW_WINDOW 0x00100 +#define MD_UPD_CA_CHALLENGES 0x00200 +#define MD_UPD_PKEY_SPEC 0x00400 +#define MD_UPD_REQUIRE_HTTPS 0x00800 +#define MD_UPD_TRANSITIVE 0x01000 +#define MD_UPD_MUST_STAPLE 0x02000 +#define MD_UPD_PROTO 0x04000 +#define MD_UPD_WARN_WINDOW 0x08000 +#define MD_UPD_STAPLING 0x10000 +#define MD_UPD_ALL 0x7FFFFFFF + +/** + * Update the given fields for the managed domain. Take the new + * values from the given md, all other values remain unchanged. + */ +apr_status_t md_reg_update(md_reg_t *reg, apr_pool_t *p, + const char *name, const md_t *md, + int fields, int check_consistency); + +/** + * Get the chain of public certificates of the managed domain md, starting with the cert + * of the domain and going up the issuers. Returns APR_ENOENT when not available. + */ +apr_status_t md_reg_get_pubcert(const md_pubcert_t **ppubcert, md_reg_t *reg, + const md_t *md, int i, apr_pool_t *p); + +/** + * Get the filenames of private key and pubcert of the MD - if they exist. + * @return APR_ENOENT if one or both do not exist. + */ +apr_status_t md_reg_get_cred_files(const char **pkeyfile, const char **pcertfile, + md_reg_t *reg, md_store_group_t group, + const md_t *md, struct md_pkey_spec_t *spec, apr_pool_t *p); + +/** + * Synchronize the given master mds with the store. + */ +apr_status_t md_reg_sync_start(md_reg_t *reg, apr_array_header_t *master_mds, apr_pool_t *p); + +/** + * Re-compute the state of the MD, given current store contents. + */ +apr_status_t md_reg_sync_finish(md_reg_t *reg, md_t *md, apr_pool_t *p, apr_pool_t *ptemp); + + +apr_status_t md_reg_remove(md_reg_t *reg, apr_pool_t *p, const char *name, int archive); + +/** + * Delete the account from the local store. + */ +apr_status_t md_reg_delete_acct(md_reg_t *reg, apr_pool_t *p, const char *acct_id); + + +/** + * Cleanup any challenges that are no longer in use. + * + * @param reg the registry + * @param p pool for permanent storage + * @param ptemp pool for temporary storage + * @param mds the list of configured MDs + */ +apr_status_t md_reg_cleanup_challenges(md_reg_t *reg, apr_pool_t *p, apr_pool_t *ptemp, + apr_array_header_t *mds); + +/** + * Mark all information from group MD_SG_DOMAINS as readonly, deny future modifications + * (MD_SG_STAGING and MD_SG_CHALLENGES remain writeable). For the given MDs, cache + * the public information (MDs themselves and their pubcerts or lack of). + */ +apr_status_t md_reg_freeze_domains(md_reg_t *reg, apr_array_header_t *mds); + +/** + * Return if the certificate of the MD should be renewed. This includes reaching + * the renewal window of an otherwise valid certificate. It return also !0 iff + * no certificate has been obtained yet. + */ +int md_reg_should_renew(md_reg_t *reg, const md_t *md, apr_pool_t *p); + +/** + * Return the timestamp when the certificate should be renewed. A value of 0 + * indicates that that renewal is not configured (see renew_mode). + */ +apr_time_t md_reg_renew_at(md_reg_t *reg, const md_t *md, apr_pool_t *p); + +/** + * Return the timestamp up to which *all* certificates for the MD can be used. + * A value of 0 indicates that there is no certificate. + */ +apr_time_t md_reg_valid_until(md_reg_t *reg, const md_t *md, apr_pool_t *p); + +/** + * Return if a warning should be issued about the certificate expiration. + * This applies the configured warn window to the remaining lifetime of the + * current certiciate. If no certificate is present, this returns 0. + */ +int md_reg_should_warn(md_reg_t *reg, const md_t *md, apr_pool_t *p); + +/**************************************************************************************************/ +/* protocol drivers */ + +typedef struct md_proto_t md_proto_t; + +typedef struct md_proto_driver_t md_proto_driver_t; + +/** + * Operating environment for a protocol driver. This is valid only for the + * duration of one run (init + renew, init + preload). + */ +struct md_proto_driver_t { + const md_proto_t *proto; + apr_pool_t *p; + void *baton; + struct apr_table_t *env; + + md_reg_t *reg; + md_store_t *store; + const char *proxy_url; + const char *ca_file; + const md_t *md; + + int can_http; + int can_https; + int reset; + int attempt; + int retry_failover; + apr_interval_time_t activation_delay; +}; + +typedef apr_status_t md_proto_init_cb(md_proto_driver_t *driver, struct md_result_t *result); +typedef apr_status_t md_proto_renew_cb(md_proto_driver_t *driver, struct md_result_t *result); +typedef apr_status_t md_proto_init_preload_cb(md_proto_driver_t *driver, struct md_result_t *result); +typedef apr_status_t md_proto_preload_cb(md_proto_driver_t *driver, + md_store_group_t group, struct md_result_t *result); +typedef apr_status_t md_proto_complete_md_cb(md_t *md, apr_pool_t *p); + +struct md_proto_t { + const char *protocol; + md_proto_init_cb *init; + md_proto_renew_cb *renew; + md_proto_init_preload_cb *init_preload; + md_proto_preload_cb *preload; + md_proto_complete_md_cb *complete_md; +}; + +/** + * Run a test initialization of the renew protocol for the given MD. This verifies + * basic parameter settings and is expected to return a description of encountered + * problems in <pmessage> when != APR_SUCCESS. + * A message return is allocated fromt the given pool. + */ +apr_status_t md_reg_test_init(md_reg_t *reg, const md_t *md, struct apr_table_t *env, + struct md_result_t *result, apr_pool_t *p); + +/** + * Obtain new credentials for the given managed domain in STAGING. + * @param reg the registry instance + * @param md the mdomain to renew + * @param env global environment of settings + * @param reset != 0 if any previous, partial information should be wiped + * @param attempt the number of attempts made this far (for this md) + * @param result for reporting results of the renewal + * @param p the memory pool to use + * @return APR_SUCCESS if new credentials have been staged successfully + */ +apr_status_t md_reg_renew(md_reg_t *reg, const md_t *md, + struct apr_table_t *env, int reset, int attempt, + struct md_result_t *result, apr_pool_t *p); + +/** + * Load a new set of credentials for the managed domain from STAGING - if it exists. + * This will archive any existing credential data and make the staged set the new one + * in DOMAINS. + * If staging is incomplete or missing, the load will fail and all credentials remain + * as they are. + * + * @return APR_SUCCESS on loading new data, APR_ENOENT when nothing is staged, error otherwise. + */ +apr_status_t md_reg_load_staging(md_reg_t *reg, const md_t *md, struct apr_table_t *env, + struct md_result_t *result, apr_pool_t *p); + +/** + * Check given MDomains for new data in staging areas and, if it exists, load + * the new credentials. On encountering errors, leave the credentails as + * they are. + */ +apr_status_t md_reg_load_stagings(md_reg_t *reg, apr_array_header_t *mds, + apr_table_t *env, apr_pool_t *p); + +void md_reg_set_renew_window_default(md_reg_t *reg, md_timeslice_t *renew_window); +void md_reg_set_warn_window_default(md_reg_t *reg, md_timeslice_t *warn_window); + +struct md_job_t *md_reg_job_make(md_reg_t *reg, const char *mdomain, apr_pool_t *p); + +/** + * Acquire a cooperative, global lock on registry modifications. Will + * do nothing if locking is not configured. + * + * This will only prevent other children/processes/cluster nodes from + * doing the same and does not protect individual store functions from + * being called without it. + * @param reg the registy + * @param p memory pool to use + * @param max_wait maximum time to wait in order to acquire + * @return APR_SUCCESS when lock was obtained + */ +apr_status_t md_reg_lock_global(md_reg_t *reg, apr_pool_t *p); + +/** + * Realease the global registry lock. Will do nothing if there is no lock. + */ +void md_reg_unlock_global(md_reg_t *reg, apr_pool_t *p); + +#endif /* mod_md_md_reg_h */ |