ssl_private.h revision 681d773821cf3ac791ea88ffd07c0d7ea42864f2
/* 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 SSL_PRIVATE_H
#define SSL_PRIVATE_H
/**
* @file ssl_private.h
* @brief Internal interfaces private to mod_ssl.
*
* @defgroup MOD_SSL_PRIVATE Private
* @ingroup MOD_SSL
* @{
*/
/** Apache headers */
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_log.h"
#include "http_main.h"
#include "http_connection.h"
#include "http_request.h"
#include "http_protocol.h"
#include "http_vhost.h"
#include "util_script.h"
#include "util_filter.h"
#include "util_ebcdic.h"
#include "apr.h"
#include "apr_strings.h"
#define APR_WANT_STRFUNC
#include "apr_want.h"
#include "apr_tables.h"
#include "apr_lib.h"
#include "apr_fnmatch.h"
#include "apr_strings.h"
#include "apr_global_mutex.h"
#include "apr_optional.h"
#include "ap_socache.h"
#define MOD_SSL_VERSION AP_SERVER_BASEREVISION
/** mod_ssl headers */
#include "ssl_toolkit_compat.h"
#include "ssl_expr.h"
#include "ssl_util_ssl.h"
/** The #ifdef macros are only defined AFTER including the above
* therefore we cannot include these system files at the top :-(
*/
#if APR_HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#if APR_HAVE_UNISTD_H
#include <unistd.h> /** needed for STDIN_FILENO et.al., at least on FreeBSD */
#endif
/**
* Provide reasonable default for some defines
*/
#ifndef FALSE
#define FALSE (0)
#endif
#ifndef TRUE
#define TRUE (!FALSE)
#endif
#ifndef PFALSE
#define PFALSE ((void *)FALSE)
#endif
#ifndef PTRUE
#define PTRUE ((void *)TRUE)
#endif
#ifndef UNSET
#define UNSET (-1)
#endif
#ifndef NUL
#define NUL '\0'
#endif
#ifndef RAND_MAX
#include <limits.h>
#define RAND_MAX INT_MAX
#endif
/**
* Provide reasonable defines for some types
*/
#ifndef BOOL
#define BOOL unsigned int
#endif
#ifndef UCHAR
#define UCHAR unsigned char
#endif
/**
* Provide useful shorthands
*/
#define strEQ(s1,s2) (strcmp(s1,s2) == 0)
#define strNE(s1,s2) (strcmp(s1,s2) != 0)
#define strEQn(s1,s2,n) (strncmp(s1,s2,n) == 0)
#define strNEn(s1,s2,n) (strncmp(s1,s2,n) != 0)
#define strcEQ(s1,s2) (strcasecmp(s1,s2) == 0)
#define strcNE(s1,s2) (strcasecmp(s1,s2) != 0)
#define strcEQn(s1,s2,n) (strncasecmp(s1,s2,n) == 0)
#define strcNEn(s1,s2,n) (strncasecmp(s1,s2,n) != 0)
#define strIsEmpty(s) (s == NULL || s[0] == NUL)
#define myConnConfig(c) \
(SSLConnRec *)ap_get_module_config(c->conn_config, &ssl_module)
#define myCtxConfig(sslconn, sc) (sslconn->is_proxy ? sc->proxy : sc->server)
#define myConnConfigSet(c, val) \
ap_set_module_config(c->conn_config, &ssl_module, val)
#define mySrvConfig(srv) (SSLSrvConfigRec *)ap_get_module_config(srv->module_config, &ssl_module)
#define myDirConfig(req) (SSLDirConfigRec *)ap_get_module_config(req->per_dir_config, &ssl_module)
#define myModConfig(srv) (mySrvConfig((srv)))->mc
#define mySrvFromConn(c) (myConnConfig(c))->server
#define mySrvConfigFromConn(c) mySrvConfig(mySrvFromConn(c))
#define myModConfigFromConn(c) myModConfig(mySrvFromConn(c))
#define myCtxVarSet(mc,num,val) mc->rCtx.pV##num = val
#define myCtxVarGet(mc,num,type) (type)(mc->rCtx.pV##num)
/**
* Defaults for the configuration
*/
#ifndef SSL_SESSION_CACHE_TIMEOUT
#define SSL_SESSION_CACHE_TIMEOUT 300
#endif
/* Default setting for per-dir reneg buffer. */
#ifndef DEFAULT_RENEG_BUFFER_SIZE
#define DEFAULT_RENEG_BUFFER_SIZE (128 * 1024)
#endif
/**
* Define the per-server SSLLogLevel constants which provide
* finer-than-debug resolution to decide if logs are to be
* assulted with tens of thousands of characters per request.
*/
typedef enum {
SSL_LOG_UNSET = UNSET,
SSL_LOG_NONE = 0,
SSL_LOG_IO = 6,
SSL_LOG_BYTES = 7
} ssl_log_level_e;
/**
* Support for MM library
*/
#define SSL_MM_FILE_MODE ( APR_UREAD | APR_UWRITE | APR_GREAD | APR_WREAD )
/**
* Define the certificate algorithm types
*/
typedef int ssl_algo_t;
#define SSL_ALGO_UNKNOWN (0)
#define SSL_ALGO_RSA (1<<0)
#define SSL_ALGO_DSA (1<<1)
#define SSL_ALGO_ALL (SSL_ALGO_RSA|SSL_ALGO_DSA)
#define SSL_AIDX_RSA (0)
#define SSL_AIDX_DSA (1)
#define SSL_AIDX_MAX (2)
/**
* Define IDs for the temporary RSA keys and DH params
*/
#define SSL_TMP_KEY_RSA_512 (0)
#define SSL_TMP_KEY_RSA_1024 (1)
#define SSL_TMP_KEY_DH_512 (2)
#define SSL_TMP_KEY_DH_1024 (3)
#define SSL_TMP_KEY_MAX (4)
/**
* Define the SSL options
*/
#define SSL_OPT_NONE (0)
#define SSL_OPT_RELSET (1<<0)
#define SSL_OPT_STDENVVARS (1<<1)
#define SSL_OPT_EXPORTCERTDATA (1<<3)
#define SSL_OPT_FAKEBASICAUTH (1<<4)
#define SSL_OPT_STRICTREQUIRE (1<<5)
#define SSL_OPT_OPTRENEGOTIATE (1<<6)
#define SSL_OPT_ALL (SSL_OPT_STDENVVARS|SSL_OPT_EXPORTCERTDATA|SSL_OPT_FAKEBASICAUTH|SSL_OPT_STRICTREQUIRE|SSL_OPT_OPTRENEGOTIATE)
typedef int ssl_opt_t;
/**
* Define the SSL Protocol options
*/
#define SSL_PROTOCOL_NONE (0)
#define SSL_PROTOCOL_SSLV2 (1<<0)
#define SSL_PROTOCOL_SSLV3 (1<<1)
#define SSL_PROTOCOL_TLSV1 (1<<2)
#define SSL_PROTOCOL_ALL (SSL_PROTOCOL_SSLV2|SSL_PROTOCOL_SSLV3|SSL_PROTOCOL_TLSV1)
typedef int ssl_proto_t;
/**
* Define the SSL verify levels
*/
typedef enum {
SSL_CVERIFY_UNSET = UNSET,
SSL_CVERIFY_NONE = 0,
SSL_CVERIFY_OPTIONAL = 1,
SSL_CVERIFY_REQUIRE = 2,
SSL_CVERIFY_OPTIONAL_NO_CA = 3
} ssl_verify_t;
#define SSL_VERIFY_PEER_STRICT \
(SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT)
#ifndef X509_V_ERR_CERT_UNTRUSTED
#define X509_V_ERR_CERT_UNTRUSTED 27
#endif
#define ssl_verify_error_is_optional(errnum) \
((errnum == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) \
|| (errnum == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN) \
|| (errnum == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY) \
|| (errnum == X509_V_ERR_CERT_UNTRUSTED) \
|| (errnum == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE))
/**
* Define the SSL pass phrase dialog types
*/
typedef enum {
SSL_PPTYPE_UNSET = UNSET,
SSL_PPTYPE_BUILTIN = 0,
SSL_PPTYPE_FILTER = 1,
SSL_PPTYPE_PIPE = 2
} ssl_pphrase_t;
/**
* Define the Path Checking modes
*/
#define SSL_PCM_EXISTS 1
#define SSL_PCM_ISREG 2
#define SSL_PCM_ISDIR 4
#define SSL_PCM_ISNONZERO 8
typedef unsigned int ssl_pathcheck_t;
/**
* Define the SSL mutex modes
*/
typedef enum {
SSL_MUTEXMODE_UNSET = UNSET,
SSL_MUTEXMODE_NONE = 0,
SSL_MUTEXMODE_USED = 1
} ssl_mutexmode_t;
/**
* Define the SSL enabled state
*/
typedef enum {
SSL_ENABLED_UNSET = UNSET,
SSL_ENABLED_FALSE = 0,
SSL_ENABLED_TRUE = 1,
SSL_ENABLED_OPTIONAL = 3
} ssl_enabled_t;
/**
* Define the SSL requirement structure
*/
typedef struct {
char *cpExpr;
ssl_expr *mpExpr;
} ssl_require_t;
/**
* Define the SSL random number generator seeding source
*/
typedef enum {
SSL_RSCTX_STARTUP = 1,
SSL_RSCTX_CONNECT = 2
} ssl_rsctx_t;
typedef enum {
SSL_RSSRC_BUILTIN = 1,
SSL_RSSRC_FILE = 2,
SSL_RSSRC_EXEC = 3,
SSL_RSSRC_EGD = 4
} ssl_rssrc_t;
typedef struct {
ssl_rsctx_t nCtx;
ssl_rssrc_t nSrc;
char *cpPath;
int nBytes;
} ssl_randseed_t;
/**
* Define the structure of an ASN.1 anything
*/
typedef struct {
long int nData;
unsigned char *cpData;
apr_time_t source_mtime;
} ssl_asn1_t;
/**
* Define the mod_ssl per-module configuration structure
* (i.e. the global configuration for each httpd process)
*/
typedef enum {
SSL_SHUTDOWN_TYPE_UNSET,
SSL_SHUTDOWN_TYPE_STANDARD,
SSL_SHUTDOWN_TYPE_UNCLEAN,
SSL_SHUTDOWN_TYPE_ACCURATE
} ssl_shutdown_type_e;
typedef struct {
SSL *ssl;
const char *client_dn;
X509 *client_cert;
ssl_shutdown_type_e shutdown_type;
const char *verify_info;
const char *verify_error;
int verify_depth;
int is_proxy;
int disabled;
int non_ssl_request;
server_rec *server;
} SSLConnRec;
/* BIG FAT WARNING: SSLModConfigRec has unusual memory lifetime: it is
* allocated out of the "process" pool and only a single such
* structure is created and used for the lifetime of the process.
* (The process pool is s->process->pool and is stored in the .pPool
* field.) Most members of this structure are likewise allocated out
* of the process pool, but notably sesscache and sesscache_context
* are not.
*
* The structure is treated as mostly immutable after a single config
* parse has completed; the post_config hook (ssl_init_Module) flips
* the bFixed flag to true and subsequent invocations of the config
* callbacks hence do nothing.
*
* This odd lifetime strategy is used so that encrypted private keys
* can be decrypted once at startup and continue to be used across
* subsequent server reloads where the interactive password prompt is
* not possible.
* It is really an ABI nightmare waiting to happen since DSOs are
* reloaded across restarts, and nothing prevents the struct type
* changing across such reloads, yet the cached structure will be
* assumed to match regardless.
*
* This should really be fixed using a smaller structure which only
* stores that which is absolutely necessary (the private keys, maybe
* the random seed), and have that structure be strictly ABI-versioned
* for safety.
*/
typedef struct {
pid_t pid;
apr_pool_t *pPool;
BOOL bFixed;
/* OpenSSL SSL_SESS_CACHE_* flags: */
long sesscache_mode;
/* The configured provider, and associated private data
* structure. */
const ap_socache_provider_t *sesscache;
ap_socache_instance_t *sesscache_context;
ssl_mutexmode_t nMutexMode;
apr_lockmech_e nMutexMech;
const char *szMutexFile;
apr_global_mutex_t *pMutex;
apr_array_header_t *aRandSeed;
apr_hash_t *tVHostKeys;
void *pTmpKeys[SSL_TMP_KEY_MAX];
apr_hash_t *tPublicCert;
apr_hash_t *tPrivateKey;
#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_INIT)
const char *szCryptoDevice;
#endif
struct {
void *pV1, *pV2, *pV3, *pV4, *pV5, *pV6, *pV7, *pV8, *pV9, *pV10;
} rCtx;
} SSLModConfigRec;
/** public cert/private key */
typedef struct {
/**
* server only has 1-2 certs/keys
* 1 RSA and/or 1 DSA
*/
const char *cert_files[SSL_AIDX_MAX];
const char *key_files[SSL_AIDX_MAX];
X509 *certs[SSL_AIDX_MAX];
EVP_PKEY *keys[SSL_AIDX_MAX];
/** Certificates which specify the set of CA names which should be
* sent in the CertificateRequest message: */
const char *ca_name_path;
const char *ca_name_file;
} modssl_pk_server_t;
typedef struct {
/** proxy can have any number of cert/key pairs */
const char *cert_file;
const char *cert_path;
STACK_OF(X509_INFO) *certs;
} modssl_pk_proxy_t;
/** stuff related to authentication that can also be per-dir */
typedef struct {
/** known/trusted CAs */
const char *ca_cert_path;
const char *ca_cert_file;
const char *cipher_suite;
/** for client or downstream server authentication */
int verify_depth;
ssl_verify_t verify_mode;
} modssl_auth_ctx_t;
typedef struct SSLSrvConfigRec SSLSrvConfigRec;
typedef struct {
SSLSrvConfigRec *sc; /** pointer back to server config */
SSL_CTX *ssl_ctx;
/** we are one or the other */
modssl_pk_server_t *pks;
modssl_pk_proxy_t *pkp;
ssl_proto_t protocol;
/** config for handling encrypted keys */
ssl_pphrase_t pphrase_dialog_type;
const char *pphrase_dialog_path;
const char *cert_chain;
const char *pkcs7;
/** certificate revocation list */
const char *crl_path;
const char *crl_file;
X509_STORE *crl;
modssl_auth_ctx_t auth;
BOOL ocsp_enabled; /* true if OCSP verification enabled */
BOOL ocsp_force_default; /* true if the default responder URL is
* used regardless of per-cert URL */
const char *ocsp_responder; /* default responder URL */
} modssl_ctx_t;
struct SSLSrvConfigRec {
SSLModConfigRec *mc;
ssl_enabled_t enabled;
BOOL proxy_enabled;
const char *vhost_id;
int vhost_id_len;
int session_cache_timeout;
BOOL cipher_server_pref;
modssl_ctx_t *server;
modssl_ctx_t *proxy;
ssl_log_level_e ssl_log_level;
ssl_enabled_t proxy_ssl_check_peer_expire;
ssl_enabled_t proxy_ssl_check_peer_cn;
#ifndef OPENSSL_NO_TLSEXT
ssl_enabled_t strict_sni_vhost_check;
#endif
};
/**
* Define the mod_ssl per-directory configuration structure
* (i.e. the local configuration for all <Directory>
* and .htaccess contexts)
*/
typedef struct {
BOOL bSSLRequired;
apr_array_header_t *aRequirement;
ssl_opt_t nOptions;
ssl_opt_t nOptionsAdd;
ssl_opt_t nOptionsDel;
const char *szCipherSuite;
ssl_verify_t nVerifyClient;
int nVerifyDepth;
const char *szCACertificatePath;
const char *szCACertificateFile;
const char *szUserName;
apr_size_t nRenegBufferSize;
} SSLDirConfigRec;
/**
* function prototypes
*/
/** API glue structures */
extern module AP_MODULE_DECLARE_DATA ssl_module;
/** configuration handling */
SSLModConfigRec *ssl_config_global_create(server_rec *);
void ssl_config_global_fix(SSLModConfigRec *);
BOOL ssl_config_global_isfixed(SSLModConfigRec *);
void *ssl_config_server_create(apr_pool_t *, server_rec *);
void *ssl_config_server_merge(apr_pool_t *, void *, void *);
void *ssl_config_perdir_create(apr_pool_t *, char *);
void *ssl_config_perdir_merge(apr_pool_t *, void *, void *);
const char *ssl_cmd_SSLMutex(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLPassPhraseDialog(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCryptoDevice(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLRandomSeed(cmd_parms *, void *, const char *, const char *, const char *);
const char *ssl_cmd_SSLEngine(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCipherSuite(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCertificateFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCertificateKeyFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCertificateChainFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLPKCS7CertificateFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCACertificatePath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCACertificateFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCADNRequestPath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCADNRequestFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCARevocationPath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLCARevocationFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLVerifyClient(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLVerifyDepth(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLSessionCache(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLSessionCacheTimeout(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProtocol(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLOptions(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLRequireSSL(cmd_parms *, void *);
const char *ssl_cmd_SSLRequire(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLUserName(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLLogLevelDebugDump(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLRenegBufferSize(cmd_parms *cmd, void *dcfg, const char *arg);
const char *ssl_cmd_SSLStrictSNIVHostCheck(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLProxyEngine(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLProxyProtocol(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCipherSuite(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyVerify(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyVerifyDepth(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCACertificatePath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCACertificateFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCARevocationPath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCARevocationFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyMachineCertificatePath(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyMachineCertificateFile(cmd_parms *, void *, const char *);
const char *ssl_cmd_SSLProxyCheckPeerExpire(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLProxyCheckPeerCN(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLOCSPOverrideResponder(cmd_parms *cmd, void *dcfg, int flag);
const char *ssl_cmd_SSLOCSPDefaultResponder(cmd_parms *cmd, void *dcfg, const char *arg);
const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, int flag);
/** module initialization */
int ssl_init_Module(apr_pool_t *, apr_pool_t *, apr_pool_t *, server_rec *);
void ssl_init_Engine(server_rec *, apr_pool_t *);
void ssl_init_ConfigureServer(server_rec *, apr_pool_t *, apr_pool_t *, SSLSrvConfigRec *);
void ssl_init_CheckServers(server_rec *, apr_pool_t *);
STACK_OF(X509_NAME)
*ssl_init_FindCAList(server_rec *, apr_pool_t *, const char *, const char *);
void ssl_init_Child(apr_pool_t *, server_rec *);
apr_status_t ssl_init_ModuleKill(void *data);
/** Apache API hooks */
int ssl_hook_Auth(request_rec *);
int ssl_hook_UserCheck(request_rec *);
int ssl_hook_Access(request_rec *);
int ssl_hook_Fixup(request_rec *);
int ssl_hook_ReadReq(request_rec *);
int ssl_hook_Upgrade(request_rec *);
void ssl_hook_ConfigTest(apr_pool_t *pconf, server_rec *s);
/** OpenSSL callbacks */
RSA *ssl_callback_TmpRSA(SSL *, int, int);
DH *ssl_callback_TmpDH(SSL *, int, int);
int ssl_callback_SSLVerify(int, X509_STORE_CTX *);
int ssl_callback_SSLVerify_CRL(int, X509_STORE_CTX *, conn_rec *);
int ssl_callback_proxy_cert(SSL *ssl, MODSSL_CLIENT_CERT_CB_ARG_TYPE **x509, EVP_PKEY **pkey);
int ssl_callback_NewSessionCacheEntry(SSL *, SSL_SESSION *);
SSL_SESSION *ssl_callback_GetSessionCacheEntry(SSL *, unsigned char *, int, int *);
void ssl_callback_DelSessionCacheEntry(SSL_CTX *, SSL_SESSION *);
void ssl_callback_LogTracingState(MODSSL_INFO_CB_ARG_TYPE, int, int);
#ifndef OPENSSL_NO_TLSEXT
int ssl_callback_ServerNameIndication(SSL *, int *, modssl_ctx_t *);
#endif
/** Session Cache Support */
void ssl_scache_init(server_rec *, apr_pool_t *);
void ssl_scache_status_register(apr_pool_t *p);
void ssl_scache_kill(server_rec *);
BOOL ssl_scache_store(server_rec *, UCHAR *, int,
time_t, SSL_SESSION *, apr_pool_t *);
SSL_SESSION *ssl_scache_retrieve(server_rec *, UCHAR *, int, apr_pool_t *);
void ssl_scache_remove(server_rec *, UCHAR *, int,
apr_pool_t *);
/** Proxy Support */
int ssl_proxy_enable(conn_rec *c);
int ssl_engine_disable(conn_rec *c);
/** I/O */
void ssl_io_filter_init(conn_rec *, request_rec *r, SSL *);
void ssl_io_filter_register(apr_pool_t *);
long ssl_io_data_cb(BIO *, int, MODSSL_BIO_CB_ARG_TYPE *, int, long, long);
/* ssl_io_buffer_fill fills the setaside buffering of the HTTP request
* to allow an SSL renegotiation to take place. */
int ssl_io_buffer_fill(request_rec *r, apr_size_t maxlen);
/** PRNG */
int ssl_rand_seed(server_rec *, apr_pool_t *, ssl_rsctx_t, char *);
/** Utility Functions */
char *ssl_util_vhostid(apr_pool_t *, server_rec *);
apr_file_t *ssl_util_ppopen(server_rec *, apr_pool_t *, const char *,
const char * const *);
void ssl_util_ppclose(server_rec *, apr_pool_t *, apr_file_t *);
char *ssl_util_readfilter(server_rec *, apr_pool_t *, const char *,
const char * const *);
BOOL ssl_util_path_check(ssl_pathcheck_t, const char *, apr_pool_t *);
ssl_algo_t ssl_util_algotypeof(X509 *, EVP_PKEY *);
char *ssl_util_algotypestr(ssl_algo_t);
void ssl_util_thread_setup(apr_pool_t *);
int ssl_init_ssl_connection(conn_rec *c, request_rec *r);
/** Pass Phrase Support */
void ssl_pphrase_Handle(server_rec *, apr_pool_t *);
/** Diffie-Hellman Parameter Support */
DH *ssl_dh_GetTmpParam(int);
DH *ssl_dh_GetParamFromFile(char *);
unsigned char *ssl_asn1_table_set(apr_hash_t *table,
const char *key,
long int length);
ssl_asn1_t *ssl_asn1_table_get(apr_hash_t *table,
const char *key);
void ssl_asn1_table_unset(apr_hash_t *table,
const char *key);
const char *ssl_asn1_keystr(int keytype);
const char *ssl_asn1_table_keyfmt(apr_pool_t *p,
const char *id,
int keytype);
STACK_OF(X509) *ssl_read_pkcs7(server_rec *s, const char *pkcs7);
/** Mutex Support */
int ssl_mutex_init(server_rec *, apr_pool_t *);
int ssl_mutex_reinit(server_rec *, apr_pool_t *);
int ssl_mutex_on(server_rec *);
int ssl_mutex_off(server_rec *);
/** Logfile Support */
void ssl_die(void);
void ssl_log_ssl_error(const char *, int, int, server_rec *);
/* ssl_log_cxerror is a wrapper for ap_log_cerror which takes a
* certificate as an additional argument and appends details of that
* cert to the log message. All other arguments interpreted exactly
* as ap_log_cerror. */
void ssl_log_cxerror(const char *file, int line, int level,
apr_status_t rv, conn_rec *c, X509 *cert,
const char *format, ...)
__attribute__((format(printf,7,8)));
/** Variables */
/* Register variables for the lifetime of the process pool 'p'. */
void ssl_var_register(apr_pool_t *p);
char *ssl_var_lookup(apr_pool_t *, server_rec *, conn_rec *, request_rec *, char *);
apr_array_header_t *ssl_ext_list(apr_pool_t *p, conn_rec *c, int peer, const char *extension);
void ssl_var_log_config_register(apr_pool_t *p);
/* Extract SSL_*_DN_* variables into table 't' from SSL object 'ssl',
* allocating from 'p': */
void modssl_var_extract_dns(apr_table_t *t, SSL *ssl, apr_pool_t *p);
#ifdef HAVE_OCSP
/* Perform OCSP validation of the current cert in the given context.
* Returns non-zero on success or zero on failure. On failure, the
* context error code is set. */
int modssl_verify_ocsp(X509_STORE_CTX *ctx, SSLSrvConfigRec *sc,
server_rec *s, conn_rec *c, apr_pool_t *pool);
/* OCSP helper interface; dispatches the given OCSP request to the
* responder at the given URI. Returns the decoded OCSP response
* object, or NULL on error (in which case, errors will have been
* logged). Pool 'p' is used for temporary allocations. */
OCSP_RESPONSE *modssl_dispatch_ocsp_request(const apr_uri_t *uri,
OCSP_REQUEST *request,
conn_rec *c, apr_pool_t *p);
#endif
#endif /* SSL_PRIVATE_H */
/** @} */