diff options
Diffstat (limited to 'openssl/crypto/engine/engine.h')
| -rw-r--r-- | openssl/crypto/engine/engine.h | 1162 |
1 files changed, 640 insertions, 522 deletions
diff --git a/openssl/crypto/engine/engine.h b/openssl/crypto/engine/engine.h index f8be49772..bd7b59144 100644 --- a/openssl/crypto/engine/engine.h +++ b/openssl/crypto/engine/engine.h @@ -1,6 +1,7 @@ /* openssl/engine.h */ -/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL - * project 2000. +/* + * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project + * 2000. */ /* ==================================================================== * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved. @@ -10,7 +11,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -57,241 +58,294 @@ */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * ECDH support in OpenSSL originally developed by + * ECDH support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ #ifndef HEADER_ENGINE_H -#define HEADER_ENGINE_H - -#include <openssl/opensslconf.h> - -#ifdef OPENSSL_NO_ENGINE -#error ENGINE is disabled. -#endif - -#ifndef OPENSSL_NO_DEPRECATED -#include <openssl/bn.h> -#ifndef OPENSSL_NO_RSA -#include <openssl/rsa.h> -#endif -#ifndef OPENSSL_NO_DSA -#include <openssl/dsa.h> -#endif -#ifndef OPENSSL_NO_DH -#include <openssl/dh.h> -#endif -#ifndef OPENSSL_NO_ECDH -#include <openssl/ecdh.h> -#endif -#ifndef OPENSSL_NO_ECDSA -#include <openssl/ecdsa.h> -#endif -#include <openssl/rand.h> -#include <openssl/ui.h> -#include <openssl/err.h> -#endif - -#include <openssl/ossl_typ.h> -#include <openssl/symhacks.h> - -#include <openssl/x509.h> +# define HEADER_ENGINE_H + +# include <openssl/opensslconf.h> + +# ifdef OPENSSL_NO_ENGINE +# error ENGINE is disabled. +# endif + +# ifndef OPENSSL_NO_DEPRECATED +# include <openssl/bn.h> +# ifndef OPENSSL_NO_RSA +# include <openssl/rsa.h> +# endif +# ifndef OPENSSL_NO_DSA +# include <openssl/dsa.h> +# endif +# ifndef OPENSSL_NO_DH +# include <openssl/dh.h> +# endif +# ifndef OPENSSL_NO_ECDH +# include <openssl/ecdh.h> +# endif +# ifndef OPENSSL_NO_ECDSA +# include <openssl/ecdsa.h> +# endif +# include <openssl/rand.h> +# include <openssl/ui.h> +# include <openssl/err.h> +# endif + +# include <openssl/ossl_typ.h> +# include <openssl/symhacks.h> + +# include <openssl/x509.h> #ifdef __cplusplus extern "C" { #endif -/* These flags are used to control combinations of algorithm (methods) - * by bitwise "OR"ing. */ -#define ENGINE_METHOD_RSA (unsigned int)0x0001 -#define ENGINE_METHOD_DSA (unsigned int)0x0002 -#define ENGINE_METHOD_DH (unsigned int)0x0004 -#define ENGINE_METHOD_RAND (unsigned int)0x0008 -#define ENGINE_METHOD_ECDH (unsigned int)0x0010 -#define ENGINE_METHOD_ECDSA (unsigned int)0x0020 -#define ENGINE_METHOD_CIPHERS (unsigned int)0x0040 -#define ENGINE_METHOD_DIGESTS (unsigned int)0x0080 -#define ENGINE_METHOD_STORE (unsigned int)0x0100 -#define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200 -#define ENGINE_METHOD_PKEY_ASN1_METHS (unsigned int)0x0400 +/* + * These flags are used to control combinations of algorithm (methods) by + * bitwise "OR"ing. + */ +# define ENGINE_METHOD_RSA (unsigned int)0x0001 +# define ENGINE_METHOD_DSA (unsigned int)0x0002 +# define ENGINE_METHOD_DH (unsigned int)0x0004 +# define ENGINE_METHOD_RAND (unsigned int)0x0008 +# define ENGINE_METHOD_ECDH (unsigned int)0x0010 +# define ENGINE_METHOD_ECDSA (unsigned int)0x0020 +# define ENGINE_METHOD_CIPHERS (unsigned int)0x0040 +# define ENGINE_METHOD_DIGESTS (unsigned int)0x0080 +# define ENGINE_METHOD_STORE (unsigned int)0x0100 +# define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200 +# define ENGINE_METHOD_PKEY_ASN1_METHS (unsigned int)0x0400 /* Obvious all-or-nothing cases. */ -#define ENGINE_METHOD_ALL (unsigned int)0xFFFF -#define ENGINE_METHOD_NONE (unsigned int)0x0000 - -/* This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used - * internally to control registration of ENGINE implementations, and can be set - * by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to - * initialise registered ENGINEs if they are not already initialised. */ -#define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001 +# define ENGINE_METHOD_ALL (unsigned int)0xFFFF +# define ENGINE_METHOD_NONE (unsigned int)0x0000 + +/* + * This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used + * internally to control registration of ENGINE implementations, and can be + * set by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to + * initialise registered ENGINEs if they are not already initialised. + */ +# define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001 /* ENGINE flags that can be set by ENGINE_set_flags(). */ -/* #define ENGINE_FLAGS_MALLOCED 0x0001 */ /* Not used */ - -/* This flag is for ENGINEs that wish to handle the various 'CMD'-related - * control commands on their own. Without this flag, ENGINE_ctrl() handles these - * control commands on behalf of the ENGINE using their "cmd_defns" data. */ -#define ENGINE_FLAGS_MANUAL_CMD_CTRL (int)0x0002 - -/* This flag is for ENGINEs who return new duplicate structures when found via - * "ENGINE_by_id()". When an ENGINE must store state (eg. if ENGINE_ctrl() - * commands are called in sequence as part of some stateful process like - * key-generation setup and execution), it can set this flag - then each attempt - * to obtain the ENGINE will result in it being copied into a new structure. - * Normally, ENGINEs don't declare this flag so ENGINE_by_id() just increments - * the existing ENGINE's structural reference count. */ -#define ENGINE_FLAGS_BY_ID_COPY (int)0x0004 - -/* This flag if for an ENGINE that does not want its methods registered as - * part of ENGINE_register_all_complete() for example if the methods are - * not usable as default methods. - */ - -#define ENGINE_FLAGS_NO_REGISTER_ALL (int)0x0008 - -/* ENGINEs can support their own command types, and these flags are used in - * ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input each - * command expects. Currently only numeric and string input is supported. If a - * control command supports none of the _NUMERIC, _STRING, or _NO_INPUT options, - * then it is regarded as an "internal" control command - and not for use in - * config setting situations. As such, they're not available to the - * ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl() access. Changes to - * this list of 'command types' should be reflected carefully in - * ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string(). */ +/* Not used */ +/* #define ENGINE_FLAGS_MALLOCED 0x0001 */ + +/* + * This flag is for ENGINEs that wish to handle the various 'CMD'-related + * control commands on their own. Without this flag, ENGINE_ctrl() handles + * these control commands on behalf of the ENGINE using their "cmd_defns" + * data. + */ +# define ENGINE_FLAGS_MANUAL_CMD_CTRL (int)0x0002 + +/* + * This flag is for ENGINEs who return new duplicate structures when found + * via "ENGINE_by_id()". When an ENGINE must store state (eg. if + * ENGINE_ctrl() commands are called in sequence as part of some stateful + * process like key-generation setup and execution), it can set this flag - + * then each attempt to obtain the ENGINE will result in it being copied into + * a new structure. Normally, ENGINEs don't declare this flag so + * ENGINE_by_id() just increments the existing ENGINE's structural reference + * count. + */ +# define ENGINE_FLAGS_BY_ID_COPY (int)0x0004 + +/* + * This flag if for an ENGINE that does not want its methods registered as + * part of ENGINE_register_all_complete() for example if the methods are not + * usable as default methods. + */ + +# define ENGINE_FLAGS_NO_REGISTER_ALL (int)0x0008 + +/* + * ENGINEs can support their own command types, and these flags are used in + * ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input + * each command expects. Currently only numeric and string input is + * supported. If a control command supports none of the _NUMERIC, _STRING, or + * _NO_INPUT options, then it is regarded as an "internal" control command - + * and not for use in config setting situations. As such, they're not + * available to the ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl() + * access. Changes to this list of 'command types' should be reflected + * carefully in ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string(). + */ /* accepts a 'long' input value (3rd parameter to ENGINE_ctrl) */ -#define ENGINE_CMD_FLAG_NUMERIC (unsigned int)0x0001 -/* accepts string input (cast from 'void*' to 'const char *', 4th parameter to - * ENGINE_ctrl) */ -#define ENGINE_CMD_FLAG_STRING (unsigned int)0x0002 -/* Indicates that the control command takes *no* input. Ie. the control command - * is unparameterised. */ -#define ENGINE_CMD_FLAG_NO_INPUT (unsigned int)0x0004 -/* Indicates that the control command is internal. This control command won't +# define ENGINE_CMD_FLAG_NUMERIC (unsigned int)0x0001 +/* + * accepts string input (cast from 'void*' to 'const char *', 4th parameter + * to ENGINE_ctrl) + */ +# define ENGINE_CMD_FLAG_STRING (unsigned int)0x0002 +/* + * Indicates that the control command takes *no* input. Ie. the control + * command is unparameterised. + */ +# define ENGINE_CMD_FLAG_NO_INPUT (unsigned int)0x0004 +/* + * Indicates that the control command is internal. This control command won't * be shown in any output, and is only usable through the ENGINE_ctrl_cmd() - * function. */ -#define ENGINE_CMD_FLAG_INTERNAL (unsigned int)0x0008 - -/* NB: These 3 control commands are deprecated and should not be used. ENGINEs - * relying on these commands should compile conditional support for - * compatibility (eg. if these symbols are defined) but should also migrate the - * same functionality to their own ENGINE-specific control functions that can be - * "discovered" by calling applications. The fact these control commands - * wouldn't be "executable" (ie. usable by text-based config) doesn't change the - * fact that application code can find and use them without requiring per-ENGINE - * hacking. */ - -/* These flags are used to tell the ctrl function what should be done. - * All command numbers are shared between all engines, even if some don't - * make sense to some engines. In such a case, they do nothing but return - * the error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED. */ -#define ENGINE_CTRL_SET_LOGSTREAM 1 -#define ENGINE_CTRL_SET_PASSWORD_CALLBACK 2 -#define ENGINE_CTRL_HUP 3 /* Close and reinitialise any - handles/connections etc. */ -#define ENGINE_CTRL_SET_USER_INTERFACE 4 /* Alternative to callback */ -#define ENGINE_CTRL_SET_CALLBACK_DATA 5 /* User-specific data, used - when calling the password - callback and the user - interface */ -#define ENGINE_CTRL_LOAD_CONFIGURATION 6 /* Load a configuration, given - a string that represents a - file name or so */ -#define ENGINE_CTRL_LOAD_SECTION 7 /* Load data from a given - section in the already loaded - configuration */ - -/* These control commands allow an application to deal with an arbitrary engine - * in a dynamic way. Warn: Negative return values indicate errors FOR THESE - * COMMANDS because zero is used to indicate 'end-of-list'. Other commands, - * including ENGINE-specific command types, return zero for an error. - * - * An ENGINE can choose to implement these ctrl functions, and can internally - * manage things however it chooses - it does so by setting the - * ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise the - * ENGINE_ctrl() code handles this on the ENGINE's behalf using the cmd_defns - * data (set using ENGINE_set_cmd_defns()). This means an ENGINE's ctrl() - * handler need only implement its own commands - the above "meta" commands will - * be taken care of. */ - -/* Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not", then - * all the remaining control commands will return failure, so it is worth - * checking this first if the caller is trying to "discover" the engine's - * capabilities and doesn't want errors generated unnecessarily. */ -#define ENGINE_CTRL_HAS_CTRL_FUNCTION 10 -/* Returns a positive command number for the first command supported by the - * engine. Returns zero if no ctrl commands are supported. */ -#define ENGINE_CTRL_GET_FIRST_CMD_TYPE 11 -/* The 'long' argument specifies a command implemented by the engine, and the - * return value is the next command supported, or zero if there are no more. */ -#define ENGINE_CTRL_GET_NEXT_CMD_TYPE 12 -/* The 'void*' argument is a command name (cast from 'const char *'), and the - * return value is the command that corresponds to it. */ -#define ENGINE_CTRL_GET_CMD_FROM_NAME 13 -/* The next two allow a command to be converted into its corresponding string - * form. In each case, the 'long' argument supplies the command. In the NAME_LEN - * case, the return value is the length of the command name (not counting a - * trailing EOL). In the NAME case, the 'void*' argument must be a string buffer - * large enough, and it will be populated with the name of the command (WITH a - * trailing EOL). */ -#define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD 14 -#define ENGINE_CTRL_GET_NAME_FROM_CMD 15 + * function. + */ +# define ENGINE_CMD_FLAG_INTERNAL (unsigned int)0x0008 + +/* + * NB: These 3 control commands are deprecated and should not be used. + * ENGINEs relying on these commands should compile conditional support for + * compatibility (eg. if these symbols are defined) but should also migrate + * the same functionality to their own ENGINE-specific control functions that + * can be "discovered" by calling applications. The fact these control + * commands wouldn't be "executable" (ie. usable by text-based config) + * doesn't change the fact that application code can find and use them + * without requiring per-ENGINE hacking. + */ + +/* + * These flags are used to tell the ctrl function what should be done. All + * command numbers are shared between all engines, even if some don't make + * sense to some engines. In such a case, they do nothing but return the + * error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED. + */ +# define ENGINE_CTRL_SET_LOGSTREAM 1 +# define ENGINE_CTRL_SET_PASSWORD_CALLBACK 2 +# define ENGINE_CTRL_HUP 3/* Close and reinitialise + * any handles/connections + * etc. */ +# define ENGINE_CTRL_SET_USER_INTERFACE 4/* Alternative to callback */ +# define ENGINE_CTRL_SET_CALLBACK_DATA 5/* User-specific data, used + * when calling the password + * callback and the user + * interface */ +# define ENGINE_CTRL_LOAD_CONFIGURATION 6/* Load a configuration, + * given a string that + * represents a file name + * or so */ +# define ENGINE_CTRL_LOAD_SECTION 7/* Load data from a given + * section in the already + * loaded configuration */ + +/* + * These control commands allow an application to deal with an arbitrary + * engine in a dynamic way. Warn: Negative return values indicate errors FOR + * THESE COMMANDS because zero is used to indicate 'end-of-list'. Other + * commands, including ENGINE-specific command types, return zero for an + * error. An ENGINE can choose to implement these ctrl functions, and can + * internally manage things however it chooses - it does so by setting the + * ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise + * the ENGINE_ctrl() code handles this on the ENGINE's behalf using the + * cmd_defns data (set using ENGINE_set_cmd_defns()). This means an ENGINE's + * ctrl() handler need only implement its own commands - the above "meta" + * commands will be taken care of. + */ + +/* + * Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not", + * then all the remaining control commands will return failure, so it is + * worth checking this first if the caller is trying to "discover" the + * engine's capabilities and doesn't want errors generated unnecessarily. + */ +# define ENGINE_CTRL_HAS_CTRL_FUNCTION 10 +/* + * Returns a positive command number for the first command supported by the + * engine. Returns zero if no ctrl commands are supported. + */ +# define ENGINE_CTRL_GET_FIRST_CMD_TYPE 11 +/* + * The 'long' argument specifies a command implemented by the engine, and the + * return value is the next command supported, or zero if there are no more. + */ +# define ENGINE_CTRL_GET_NEXT_CMD_TYPE 12 +/* + * The 'void*' argument is a command name (cast from 'const char *'), and the + * return value is the command that corresponds to it. + */ +# define ENGINE_CTRL_GET_CMD_FROM_NAME 13 +/* + * The next two allow a command to be converted into its corresponding string + * form. In each case, the 'long' argument supplies the command. In the + * NAME_LEN case, the return value is the length of the command name (not + * counting a trailing EOL). In the NAME case, the 'void*' argument must be a + * string buffer large enough, and it will be populated with the name of the + * command (WITH a trailing EOL). + */ +# define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD 14 +# define ENGINE_CTRL_GET_NAME_FROM_CMD 15 /* The next two are similar but give a "short description" of a command. */ -#define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD 16 -#define ENGINE_CTRL_GET_DESC_FROM_CMD 17 -/* With this command, the return value is the OR'd combination of +# define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD 16 +# define ENGINE_CTRL_GET_DESC_FROM_CMD 17 +/* + * With this command, the return value is the OR'd combination of * ENGINE_CMD_FLAG_*** values that indicate what kind of input a given - * engine-specific ctrl command expects. */ -#define ENGINE_CTRL_GET_CMD_FLAGS 18 + * engine-specific ctrl command expects. + */ +# define ENGINE_CTRL_GET_CMD_FLAGS 18 -/* ENGINE implementations should start the numbering of their own control - * commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc). */ -#define ENGINE_CMD_BASE 200 +/* + * ENGINE implementations should start the numbering of their own control + * commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc). + */ +# define ENGINE_CMD_BASE 200 -/* NB: These 2 nCipher "chil" control commands are deprecated, and their +/* + * NB: These 2 nCipher "chil" control commands are deprecated, and their * functionality is now available through ENGINE-specific control commands * (exposed through the above-mentioned 'CMD'-handling). Code using these 2 - * commands should be migrated to the more general command handling before these - * are removed. */ + * commands should be migrated to the more general command handling before + * these are removed. + */ /* Flags specific to the nCipher "chil" engine */ -#define ENGINE_CTRL_CHIL_SET_FORKCHECK 100 - /* Depending on the value of the (long)i argument, this sets or - * unsets the SimpleForkCheck flag in the CHIL API to enable or - * disable checking and workarounds for applications that fork(). - */ -#define ENGINE_CTRL_CHIL_NO_LOCKING 101 - /* This prevents the initialisation function from providing mutex - * callbacks to the nCipher library. */ - -/* If an ENGINE supports its own specific control commands and wishes the - * framework to handle the above 'ENGINE_CMD_***'-manipulation commands on its - * behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN entries - * to ENGINE_set_cmd_defns(). It should also implement a ctrl() handler that - * supports the stated commands (ie. the "cmd_num" entries as described by the - * array). NB: The array must be ordered in increasing order of cmd_num. - * "null-terminated" means that the last ENGINE_CMD_DEFN element has cmd_num set - * to zero and/or cmd_name set to NULL. */ -typedef struct ENGINE_CMD_DEFN_st - { - unsigned int cmd_num; /* The command number */ - const char *cmd_name; /* The command name itself */ - const char *cmd_desc; /* A short description of the command */ - unsigned int cmd_flags; /* The input the command expects */ - } ENGINE_CMD_DEFN; +# define ENGINE_CTRL_CHIL_SET_FORKCHECK 100 + /* + * Depending on the value of the (long)i argument, this sets or + * unsets the SimpleForkCheck flag in the CHIL API to enable or + * disable checking and workarounds for applications that fork(). + */ +# define ENGINE_CTRL_CHIL_NO_LOCKING 101 + /* + * This prevents the initialisation function from providing mutex + * callbacks to the nCipher library. + */ + +/* + * If an ENGINE supports its own specific control commands and wishes the + * framework to handle the above 'ENGINE_CMD_***'-manipulation commands on + * its behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN + * entries to ENGINE_set_cmd_defns(). It should also implement a ctrl() + * handler that supports the stated commands (ie. the "cmd_num" entries as + * described by the array). NB: The array must be ordered in increasing order + * of cmd_num. "null-terminated" means that the last ENGINE_CMD_DEFN element + * has cmd_num set to zero and/or cmd_name set to NULL. + */ +typedef struct ENGINE_CMD_DEFN_st { + unsigned int cmd_num; /* The command number */ + const char *cmd_name; /* The command name itself */ + const char *cmd_desc; /* A short description of the command */ + unsigned int cmd_flags; /* The input the command expects */ +} ENGINE_CMD_DEFN; /* Generic function pointer */ -typedef int (*ENGINE_GEN_FUNC_PTR)(void); +typedef int (*ENGINE_GEN_FUNC_PTR) (void); /* Generic function pointer taking no arguments */ -typedef int (*ENGINE_GEN_INT_FUNC_PTR)(ENGINE *); +typedef int (*ENGINE_GEN_INT_FUNC_PTR) (ENGINE *); /* Specific control function pointer */ -typedef int (*ENGINE_CTRL_FUNC_PTR)(ENGINE *, int, long, void *, void (*f)(void)); +typedef int (*ENGINE_CTRL_FUNC_PTR) (ENGINE *, int, long, void *, + void (*f) (void)); /* Generic load_key function pointer */ -typedef EVP_PKEY * (*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *, - UI_METHOD *ui_method, void *callback_data); -typedef int (*ENGINE_SSL_CLIENT_CERT_PTR)(ENGINE *, SSL *ssl, - STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey, - STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data); -/* These callback types are for an ENGINE's handler for cipher and digest logic. +typedef EVP_PKEY *(*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *, + UI_METHOD *ui_method, + void *callback_data); +typedef int (*ENGINE_SSL_CLIENT_CERT_PTR) (ENGINE *, SSL *ssl, + STACK_OF(X509_NAME) *ca_dn, + X509 **pcert, EVP_PKEY **pkey, + STACK_OF(X509) **pother, + UI_METHOD *ui_method, + void *callback_data); +/*- + * These callback types are for an ENGINE's handler for cipher and digest logic. * These handlers have these prototypes; * int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid); * int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid); @@ -301,21 +355,29 @@ typedef int (*ENGINE_SSL_CLIENT_CERT_PTR)(ENGINE *, SSL *ssl, * If the framework wants a list of supported 'nid's, it will call; * foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error) */ -/* Returns to a pointer to the array of supported cipher 'nid's. If the second - * parameter is non-NULL it is set to the size of the returned array. */ -typedef int (*ENGINE_CIPHERS_PTR)(ENGINE *, const EVP_CIPHER **, const int **, int); -typedef int (*ENGINE_DIGESTS_PTR)(ENGINE *, const EVP_MD **, const int **, int); -typedef int (*ENGINE_PKEY_METHS_PTR)(ENGINE *, EVP_PKEY_METHOD **, const int **, int); -typedef int (*ENGINE_PKEY_ASN1_METHS_PTR)(ENGINE *, EVP_PKEY_ASN1_METHOD **, const int **, int); -/* STRUCTURE functions ... all of these functions deal with pointers to ENGINE - * structures where the pointers have a "structural reference". This means that - * their reference is to allowed access to the structure but it does not imply - * that the structure is functional. To simply increment or decrement the - * structural reference count, use ENGINE_by_id and ENGINE_free. NB: This is not - * required when iterating using ENGINE_get_next as it will automatically - * decrement the structural reference count of the "current" ENGINE and - * increment the structural reference count of the ENGINE it returns (unless it - * is NULL). */ +/* + * Returns to a pointer to the array of supported cipher 'nid's. If the + * second parameter is non-NULL it is set to the size of the returned array. + */ +typedef int (*ENGINE_CIPHERS_PTR) (ENGINE *, const EVP_CIPHER **, + const int **, int); +typedef int (*ENGINE_DIGESTS_PTR) (ENGINE *, const EVP_MD **, const int **, + int); +typedef int (*ENGINE_PKEY_METHS_PTR) (ENGINE *, EVP_PKEY_METHOD **, + const int **, int); +typedef int (*ENGINE_PKEY_ASN1_METHS_PTR) (ENGINE *, EVP_PKEY_ASN1_METHOD **, + const int **, int); +/* + * STRUCTURE functions ... all of these functions deal with pointers to + * ENGINE structures where the pointers have a "structural reference". This + * means that their reference is to allowed access to the structure but it + * does not imply that the structure is functional. To simply increment or + * decrement the structural reference count, use ENGINE_by_id and + * ENGINE_free. NB: This is not required when iterating using ENGINE_get_next + * as it will automatically decrement the structural reference count of the + * "current" ENGINE and increment the structural reference count of the + * ENGINE it returns (unless it is NULL). + */ /* Get the first/last "ENGINE" type available. */ ENGINE *ENGINE_get_first(void); @@ -332,7 +394,7 @@ ENGINE *ENGINE_by_id(const char *id); /* Add all the built-in engines. */ void ENGINE_load_openssl(void); void ENGINE_load_dynamic(void); -#ifndef OPENSSL_NO_STATIC_ENGINE +# ifndef OPENSSL_NO_STATIC_ENGINE void ENGINE_load_4758cca(void); void ENGINE_load_aep(void); void ENGINE_load_atalla(void); @@ -343,30 +405,32 @@ void ENGINE_load_sureware(void); void ENGINE_load_ubsec(void); void ENGINE_load_padlock(void); void ENGINE_load_capi(void); -#ifndef OPENSSL_NO_GMP +# ifndef OPENSSL_NO_GMP void ENGINE_load_gmp(void); -#endif -#ifndef OPENSSL_NO_GOST +# endif +# ifndef OPENSSL_NO_GOST void ENGINE_load_gost(void); -#endif -#endif +# endif +# endif void ENGINE_load_cryptodev(void); -void ENGINE_load_rsax(void); void ENGINE_load_rdrand(void); void ENGINE_load_builtin_engines(void); -/* Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation - * "registry" handling. */ +/* + * Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation + * "registry" handling. + */ unsigned int ENGINE_get_table_flags(void); void ENGINE_set_table_flags(unsigned int flags); -/* Manage registration of ENGINEs per "table". For each type, there are 3 +/*- Manage registration of ENGINEs per "table". For each type, there are 3 * functions; * ENGINE_register_***(e) - registers the implementation from 'e' (if it has one) * ENGINE_unregister_***(e) - unregister the implementation from 'e' * ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list * Cleanup is automatically registered from each table when required, so - * ENGINE_cleanup() will reverse any "register" operations. */ + * ENGINE_cleanup() will reverse any "register" operations. + */ int ENGINE_register_RSA(ENGINE *e); void ENGINE_unregister_RSA(ENGINE *e); @@ -412,63 +476,77 @@ int ENGINE_register_pkey_asn1_meths(ENGINE *e); void ENGINE_unregister_pkey_asn1_meths(ENGINE *e); void ENGINE_register_all_pkey_asn1_meths(void); -/* These functions register all support from the above categories. Note, use of - * these functions can result in static linkage of code your application may not - * need. If you only need a subset of functionality, consider using more - * selective initialisation. */ +/* + * These functions register all support from the above categories. Note, use + * of these functions can result in static linkage of code your application + * may not need. If you only need a subset of functionality, consider using + * more selective initialisation. + */ int ENGINE_register_complete(ENGINE *e); int ENGINE_register_all_complete(void); -/* Send parametrised control commands to the engine. The possibilities to send - * down an integer, a pointer to data or a function pointer are provided. Any of - * the parameters may or may not be NULL, depending on the command number. In - * actuality, this function only requires a structural (rather than functional) - * reference to an engine, but many control commands may require the engine be - * functional. The caller should be aware of trying commands that require an - * operational ENGINE, and only use functional references in such situations. */ -int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)); - -/* This function tests if an ENGINE-specific command is usable as a "setting". - * Eg. in an application's config file that gets processed through +/* + * Send parametrised control commands to the engine. The possibilities to + * send down an integer, a pointer to data or a function pointer are + * provided. Any of the parameters may or may not be NULL, depending on the + * command number. In actuality, this function only requires a structural + * (rather than functional) reference to an engine, but many control commands + * may require the engine be functional. The caller should be aware of trying + * commands that require an operational ENGINE, and only use functional + * references in such situations. + */ +int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)); + +/* + * This function tests if an ENGINE-specific command is usable as a + * "setting". Eg. in an application's config file that gets processed through * ENGINE_ctrl_cmd_string(). If this returns zero, it is not available to - * ENGINE_ctrl_cmd_string(), only ENGINE_ctrl(). */ + * ENGINE_ctrl_cmd_string(), only ENGINE_ctrl(). + */ int ENGINE_cmd_is_executable(ENGINE *e, int cmd); -/* This function works like ENGINE_ctrl() with the exception of taking a - * command name instead of a command number, and can handle optional commands. - * See the comment on ENGINE_ctrl_cmd_string() for an explanation on how to - * use the cmd_name and cmd_optional. */ +/* + * This function works like ENGINE_ctrl() with the exception of taking a + * command name instead of a command number, and can handle optional + * commands. See the comment on ENGINE_ctrl_cmd_string() for an explanation + * on how to use the cmd_name and cmd_optional. + */ int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name, - long i, void *p, void (*f)(void), int cmd_optional); - -/* This function passes a command-name and argument to an ENGINE. The cmd_name - * is converted to a command number and the control command is called using - * 'arg' as an argument (unless the ENGINE doesn't support such a command, in - * which case no control command is called). The command is checked for input - * flags, and if necessary the argument will be converted to a numeric value. If - * cmd_optional is non-zero, then if the ENGINE doesn't support the given - * cmd_name the return value will be success anyway. This function is intended - * for applications to use so that users (or config files) can supply - * engine-specific config data to the ENGINE at run-time to control behaviour of - * specific engines. As such, it shouldn't be used for calling ENGINE_ctrl() - * functions that return data, deal with binary data, or that are otherwise - * supposed to be used directly through ENGINE_ctrl() in application code. Any - * "return" data from an ENGINE_ctrl() operation in this function will be lost - - * the return value is interpreted as failure if the return value is zero, - * success otherwise, and this function returns a boolean value as a result. In - * other words, vendors of 'ENGINE'-enabled devices should write ENGINE - * implementations with parameterisations that work in this scheme, so that - * compliant ENGINE-based applications can work consistently with the same - * configuration for the same ENGINE-enabled devices, across applications. */ + long i, void *p, void (*f) (void), int cmd_optional); + +/* + * This function passes a command-name and argument to an ENGINE. The + * cmd_name is converted to a command number and the control command is + * called using 'arg' as an argument (unless the ENGINE doesn't support such + * a command, in which case no control command is called). The command is + * checked for input flags, and if necessary the argument will be converted + * to a numeric value. If cmd_optional is non-zero, then if the ENGINE + * doesn't support the given cmd_name the return value will be success + * anyway. This function is intended for applications to use so that users + * (or config files) can supply engine-specific config data to the ENGINE at + * run-time to control behaviour of specific engines. As such, it shouldn't + * be used for calling ENGINE_ctrl() functions that return data, deal with + * binary data, or that are otherwise supposed to be used directly through + * ENGINE_ctrl() in application code. Any "return" data from an ENGINE_ctrl() + * operation in this function will be lost - the return value is interpreted + * as failure if the return value is zero, success otherwise, and this + * function returns a boolean value as a result. In other words, vendors of + * 'ENGINE'-enabled devices should write ENGINE implementations with + * parameterisations that work in this scheme, so that compliant ENGINE-based + * applications can work consistently with the same configuration for the + * same ENGINE-enabled devices, across applications. + */ int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg, - int cmd_optional); - -/* These functions are useful for manufacturing new ENGINE structures. They - * don't address reference counting at all - one uses them to populate an ENGINE - * structure with personalised implementations of things prior to using it - * directly or adding it to the builtin ENGINE list in OpenSSL. These are also - * here so that the ENGINE structure doesn't have to be exposed and break binary - * compatibility! */ + int cmd_optional); + +/* + * These functions are useful for manufacturing new ENGINE structures. They + * don't address reference counting at all - one uses them to populate an + * ENGINE structure with personalised implementations of things prior to + * using it directly or adding it to the builtin ENGINE list in OpenSSL. + * These are also here so that the ENGINE structure doesn't have to be + * exposed and break binary compatibility! + */ ENGINE *ENGINE_new(void); int ENGINE_free(ENGINE *e); int ENGINE_up_ref(ENGINE *e); @@ -485,10 +563,12 @@ int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f); int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f); int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f); int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f); -int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f); +int ENGINE_set_load_privkey_function(ENGINE *e, + ENGINE_LOAD_KEY_PTR loadpriv_f); int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f); int ENGINE_set_load_ssl_client_cert_function(ENGINE *e, - ENGINE_SSL_CLIENT_CERT_PTR loadssl_f); + ENGINE_SSL_CLIENT_CERT_PTR + loadssl_f); int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f); int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f); int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f); @@ -497,20 +577,25 @@ int ENGINE_set_flags(ENGINE *e, int flags); int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns); /* These functions allow control over any per-structure ENGINE data. */ int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, - CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); + CRYPTO_EX_dup *dup_func, + CRYPTO_EX_free *free_func); int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg); void *ENGINE_get_ex_data(const ENGINE *e, int idx); -/* This function cleans up anything that needs it. Eg. the ENGINE_add() function - * automatically ensures the list cleanup function is registered to be called - * from ENGINE_cleanup(). Similarly, all ENGINE_register_*** functions ensure - * ENGINE_cleanup() will clean up after them. */ +/* + * This function cleans up anything that needs it. Eg. the ENGINE_add() + * function automatically ensures the list cleanup function is registered to + * be called from ENGINE_cleanup(). Similarly, all ENGINE_register_*** + * functions ensure ENGINE_cleanup() will clean up after them. + */ void ENGINE_cleanup(void); -/* These return values from within the ENGINE structure. These can be useful +/* + * These return values from within the ENGINE structure. These can be useful * with functional references as well as structural references - it depends * which you obtained. Using the result for functional purposes if you only - * obtained a structural reference may be problematic! */ + * obtained a structural reference may be problematic! + */ const char *ENGINE_get_id(const ENGINE *e); const char *ENGINE_get_name(const ENGINE *e); const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e); @@ -526,7 +611,8 @@ ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e); ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e); ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e); ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e); -ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE *e); +ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE + *e); ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e); ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e); ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e); @@ -536,49 +622,60 @@ const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid); const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid); const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid); const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e, - const char *str, int len); + const char *str, + int len); const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe, - const char *str, int len); + const char *str, + int len); const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e); int ENGINE_get_flags(const ENGINE *e); -/* FUNCTIONAL functions. These functions deal with ENGINE structures - * that have (or will) be initialised for use. Broadly speaking, the - * structural functions are useful for iterating the list of available - * engine types, creating new engine types, and other "list" operations. - * These functions actually deal with ENGINEs that are to be used. As - * such these functions can fail (if applicable) when particular - * engines are unavailable - eg. if a hardware accelerator is not - * attached or not functioning correctly. Each ENGINE has 2 reference - * counts; structural and functional. Every time a functional reference - * is obtained or released, a corresponding structural reference is - * automatically obtained or released too. */ - -/* Initialise a engine type for use (or up its reference count if it's - * already in use). This will fail if the engine is not currently - * operational and cannot initialise. */ +/* + * FUNCTIONAL functions. These functions deal with ENGINE structures that + * have (or will) be initialised for use. Broadly speaking, the structural + * functions are useful for iterating the list of available engine types, + * creating new engine types, and other "list" operations. These functions + * actually deal with ENGINEs that are to be used. As such these functions + * can fail (if applicable) when particular engines are unavailable - eg. if + * a hardware accelerator is not attached or not functioning correctly. Each + * ENGINE has 2 reference counts; structural and functional. Every time a + * functional reference is obtained or released, a corresponding structural + * reference is automatically obtained or released too. + */ + +/* + * Initialise a engine type for use (or up its reference count if it's + * already in use). This will fail if the engine is not currently operational + * and cannot initialise. + */ int ENGINE_init(ENGINE *e); -/* Free a functional reference to a engine type. This does not require - * a corresponding call to ENGINE_free as it also releases a structural - * reference. */ +/* + * Free a functional reference to a engine type. This does not require a + * corresponding call to ENGINE_free as it also releases a structural + * reference. + */ int ENGINE_finish(ENGINE *e); -/* The following functions handle keys that are stored in some secondary +/* + * The following functions handle keys that are stored in some secondary * location, handled by the engine. The storage may be on a card or - * whatever. */ + * whatever. + */ EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id, - UI_METHOD *ui_method, void *callback_data); + UI_METHOD *ui_method, void *callback_data); EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id, - UI_METHOD *ui_method, void *callback_data); + UI_METHOD *ui_method, void *callback_data); int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s, - STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **ppkey, - STACK_OF(X509) **pother, - UI_METHOD *ui_method, void *callback_data); - -/* This returns a pointer for the current ENGINE structure that - * is (by default) performing any RSA operations. The value returned - * is an incremented reference, so it should be free'd (ENGINE_finish) - * before it is discarded. */ + STACK_OF(X509_NAME) *ca_dn, X509 **pcert, + EVP_PKEY **ppkey, STACK_OF(X509) **pother, + UI_METHOD *ui_method, void *callback_data); + +/* + * This returns a pointer for the current ENGINE structure that is (by + * default) performing any RSA operations. The value returned is an + * incremented reference, so it should be free'd (ENGINE_finish) before it is + * discarded. + */ ENGINE *ENGINE_get_default_RSA(void); /* Same for the other "methods" */ ENGINE *ENGINE_get_default_DSA(void); @@ -586,17 +683,21 @@ ENGINE *ENGINE_get_default_ECDH(void); ENGINE *ENGINE_get_default_ECDSA(void); ENGINE *ENGINE_get_default_DH(void); ENGINE *ENGINE_get_default_RAND(void); -/* These functions can be used to get a functional reference to perform - * ciphering or digesting corresponding to "nid". */ +/* + * These functions can be used to get a functional reference to perform + * ciphering or digesting corresponding to "nid". + */ ENGINE *ENGINE_get_cipher_engine(int nid); ENGINE *ENGINE_get_digest_engine(int nid); ENGINE *ENGINE_get_pkey_meth_engine(int nid); ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid); -/* This sets a new default ENGINE structure for performing RSA - * operations. If the result is non-zero (success) then the ENGINE - * structure will have had its reference count up'd so the caller - * should still free their own reference 'e'. */ +/* + * This sets a new default ENGINE structure for performing RSA operations. If + * the result is non-zero (success) then the ENGINE structure will have had + * its reference count up'd so the caller should still free their own + * reference 'e'. + */ int ENGINE_set_default_RSA(ENGINE *e); int ENGINE_set_default_string(ENGINE *e, const char *def_list); /* Same for the other "methods" */ @@ -610,11 +711,13 @@ int ENGINE_set_default_digests(ENGINE *e); int ENGINE_set_default_pkey_meths(ENGINE *e); int ENGINE_set_default_pkey_asn1_meths(ENGINE *e); -/* The combination "set" - the flags are bitwise "OR"d from the +/* + * The combination "set" - the flags are bitwise "OR"d from the * ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()" * function, this function can result in unnecessary static linkage. If your * application requires only specific functionality, consider using more - * selective functions. */ + * selective functions. + */ int ENGINE_set_default(ENGINE *e, unsigned int flags); void ENGINE_add_conf_module(void); @@ -627,125 +730,140 @@ void ENGINE_add_conf_module(void); /**************************/ /* Binary/behaviour compatibility levels */ -#define OSSL_DYNAMIC_VERSION (unsigned long)0x00020000 -/* Binary versions older than this are too old for us (whether we're a loader or - * a loadee) */ -#define OSSL_DYNAMIC_OLDEST (unsigned long)0x00020000 - -/* When compiling an ENGINE entirely as an external shared library, loadable by - * the "dynamic" ENGINE, these types are needed. The 'dynamic_fns' structure - * type provides the calling application's (or library's) error functionality - * and memory management function pointers to the loaded library. These should - * be used/set in the loaded library code so that the loading application's - * 'state' will be used/changed in all operations. The 'static_state' pointer - * allows the loaded library to know if it shares the same static data as the - * calling application (or library), and thus whether these callbacks need to be - * set or not. */ -typedef void *(*dyn_MEM_malloc_cb)(size_t); -typedef void *(*dyn_MEM_realloc_cb)(void *, size_t); -typedef void (*dyn_MEM_free_cb)(void *); +# define OSSL_DYNAMIC_VERSION (unsigned long)0x00020000 +/* + * Binary versions older than this are too old for us (whether we're a loader + * or a loadee) + */ +# define OSSL_DYNAMIC_OLDEST (unsigned long)0x00020000 + +/* + * When compiling an ENGINE entirely as an external shared library, loadable + * by the "dynamic" ENGINE, these types are needed. The 'dynamic_fns' + * structure type provides the calling application's (or library's) error + * functionality and memory management function pointers to the loaded + * library. These should be used/set in the loaded library code so that the + * loading application's 'state' will be used/changed in all operations. The + * 'static_state' pointer allows the loaded library to know if it shares the + * same static data as the calling application (or library), and thus whether + * these callbacks need to be set or not. + */ +typedef void *(*dyn_MEM_malloc_cb) (size_t); +typedef void *(*dyn_MEM_realloc_cb) (void *, size_t); +typedef void (*dyn_MEM_free_cb) (void *); typedef struct st_dynamic_MEM_fns { - dyn_MEM_malloc_cb malloc_cb; - dyn_MEM_realloc_cb realloc_cb; - dyn_MEM_free_cb free_cb; - } dynamic_MEM_fns; -/* FIXME: Perhaps the memory and locking code (crypto.h) should declare and use - * these types so we (and any other dependant code) can simplify a bit?? */ -typedef void (*dyn_lock_locking_cb)(int,int,const char *,int); -typedef int (*dyn_lock_add_lock_cb)(int*,int,int,const char *,int); -typedef struct CRYPTO_dynlock_value *(*dyn_dynlock_create_cb)( - const char *,int); -typedef void (*dyn_dynlock_lock_cb)(int,struct CRYPTO_dynlock_value *, - const char *,int); -typedef void (*dyn_dynlock_destroy_cb)(struct CRYPTO_dynlock_value *, - const char *,int); + dyn_MEM_malloc_cb malloc_cb; + dyn_MEM_realloc_cb realloc_cb; + dyn_MEM_free_cb free_cb; +} dynamic_MEM_fns; +/* + * FIXME: Perhaps the memory and locking code (crypto.h) should declare and + * use these types so we (and any other dependant code) can simplify a bit?? + */ +typedef void (*dyn_lock_locking_cb) (int, int, const char *, int); +typedef int (*dyn_lock_add_lock_cb) (int *, int, int, const char *, int); +typedef struct CRYPTO_dynlock_value *(*dyn_dynlock_create_cb) (const char *, + int); +typedef void (*dyn_dynlock_lock_cb) (int, struct CRYPTO_dynlock_value *, + const char *, int); +typedef void (*dyn_dynlock_destroy_cb) (struct CRYPTO_dynlock_value *, + const char *, int); typedef struct st_dynamic_LOCK_fns { - dyn_lock_locking_cb lock_locking_cb; - dyn_lock_add_lock_cb lock_add_lock_cb; - dyn_dynlock_create_cb dynlock_create_cb; - dyn_dynlock_lock_cb dynlock_lock_cb; - dyn_dynlock_destroy_cb dynlock_destroy_cb; - } dynamic_LOCK_fns; + dyn_lock_locking_cb lock_locking_cb; + dyn_lock_add_lock_cb lock_add_lock_cb; + dyn_dynlock_create_cb dynlock_create_cb; + dyn_dynlock_lock_cb dynlock_lock_cb; + dyn_dynlock_destroy_cb dynlock_destroy_cb; +} dynamic_LOCK_fns; /* The top-level structure */ typedef struct st_dynamic_fns { - void *static_state; - const ERR_FNS *err_fns; - const CRYPTO_EX_DATA_IMPL *ex_data_fns; - dynamic_MEM_fns mem_fns; - dynamic_LOCK_fns lock_fns; - } dynamic_fns; - -/* The version checking function should be of this prototype. NB: The - * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading code. - * If this function returns zero, it indicates a (potential) version + void *static_state; + const ERR_FNS *err_fns; + const CRYPTO_EX_DATA_IMPL *ex_data_fns; + dynamic_MEM_fns mem_fns; + dynamic_LOCK_fns lock_fns; +} dynamic_fns; + +/* + * The version checking function should be of this prototype. NB: The + * ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading + * code. If this function returns zero, it indicates a (potential) version * incompatibility and the loaded library doesn't believe it can proceed. * Otherwise, the returned value is the (latest) version supported by the - * loading library. The loader may still decide that the loaded code's version - * is unsatisfactory and could veto the load. The function is expected to - * be implemented with the symbol name "v_check", and a default implementation - * can be fully instantiated with IMPLEMENT_DYNAMIC_CHECK_FN(). */ -typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version); -#define IMPLEMENT_DYNAMIC_CHECK_FN() \ - OPENSSL_EXPORT unsigned long v_check(unsigned long v); \ - OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \ - if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \ - return 0; } - -/* This function is passed the ENGINE structure to initialise with its own + * loading library. The loader may still decide that the loaded code's + * version is unsatisfactory and could veto the load. The function is + * expected to be implemented with the symbol name "v_check", and a default + * implementation can be fully instantiated with + * IMPLEMENT_DYNAMIC_CHECK_FN(). + */ +typedef unsigned long (*dynamic_v_check_fn) (unsigned long ossl_version); +# define IMPLEMENT_DYNAMIC_CHECK_FN() \ + OPENSSL_EXPORT unsigned long v_check(unsigned long v); \ + OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \ + if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \ + return 0; } + +/* + * This function is passed the ENGINE structure to initialise with its own * function and command settings. It should not adjust the structural or - * functional reference counts. If this function returns zero, (a) the load will - * be aborted, (b) the previous ENGINE state will be memcpy'd back onto the - * structure, and (c) the shared library will be unloaded. So implementations - * should do their own internal cleanup in failure circumstances otherwise they - * could leak. The 'id' parameter, if non-NULL, represents the ENGINE id that - * the loader is looking for. If this is NULL, the shared library can choose to - * return failure or to initialise a 'default' ENGINE. If non-NULL, the shared - * library must initialise only an ENGINE matching the passed 'id'. The function - * is expected to be implemented with the symbol name "bind_engine". A standard - * implementation can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where - * the parameter 'fn' is a callback function that populates the ENGINE structure - * and returns an int value (zero for failure). 'fn' should have prototype; - * [static] int fn(ENGINE *e, const char *id); */ -typedef int (*dynamic_bind_engine)(ENGINE *e, const char *id, - const dynamic_fns *fns); -#define IMPLEMENT_DYNAMIC_BIND_FN(fn) \ - OPENSSL_EXPORT \ - int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \ - OPENSSL_EXPORT \ - int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \ - if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \ - if(!CRYPTO_set_mem_functions(fns->mem_fns.malloc_cb, \ - fns->mem_fns.realloc_cb, fns->mem_fns.free_cb)) \ - return 0; \ - CRYPTO_set_locking_callback(fns->lock_fns.lock_locking_cb); \ - CRYPTO_set_add_lock_callback(fns->lock_fns.lock_add_lock_cb); \ - CRYPTO_set_dynlock_create_callback(fns->lock_fns.dynlock_create_cb); \ - CRYPTO_set_dynlock_lock_callback(fns->lock_fns.dynlock_lock_cb); \ - CRYPTO_set_dynlock_destroy_callback(fns->lock_fns.dynlock_destroy_cb); \ - if(!CRYPTO_set_ex_data_implementation(fns->ex_data_fns)) \ - return 0; \ - if(!ERR_set_implementation(fns->err_fns)) return 0; \ - skip_cbs: \ - if(!fn(e,id)) return 0; \ - return 1; } - -/* If the loading application (or library) and the loaded ENGINE library share - * the same static data (eg. they're both dynamically linked to the same - * libcrypto.so) we need a way to avoid trying to set system callbacks - this - * would fail, and for the same reason that it's unnecessary to try. If the - * loaded ENGINE has (or gets from through the loader) its own copy of the - * libcrypto static data, we will need to set the callbacks. The easiest way to - * detect this is to have a function that returns a pointer to some static data - * and let the loading application and loaded ENGINE compare their respective - * values. */ + * functional reference counts. If this function returns zero, (a) the load + * will be aborted, (b) the previous ENGINE state will be memcpy'd back onto + * the structure, and (c) the shared library will be unloaded. So + * implementations should do their own internal cleanup in failure + * circumstances otherwise they could leak. The 'id' parameter, if non-NULL, + * represents the ENGINE id that the loader is looking for. If this is NULL, + * the shared library can choose to return failure or to initialise a + * 'default' ENGINE. If non-NULL, the shared library must initialise only an + * ENGINE matching the passed 'id'. The function is expected to be + * implemented with the symbol name "bind_engine". A standard implementation + * can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where the parameter + * 'fn' is a callback function that populates the ENGINE structure and + * returns an int value (zero for failure). 'fn' should have prototype; + * [static] int fn(ENGINE *e, const char *id); + */ +typedef int (*dynamic_bind_engine) (ENGINE *e, const char *id, + const dynamic_fns *fns); +# define IMPLEMENT_DYNAMIC_BIND_FN(fn) \ + OPENSSL_EXPORT \ + int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \ + OPENSSL_EXPORT \ + int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \ + if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \ + if(!CRYPTO_set_mem_functions(fns->mem_fns.malloc_cb, \ + fns->mem_fns.realloc_cb, fns->mem_fns.free_cb)) \ + return 0; \ + CRYPTO_set_locking_callback(fns->lock_fns.lock_locking_cb); \ + CRYPTO_set_add_lock_callback(fns->lock_fns.lock_add_lock_cb); \ + CRYPTO_set_dynlock_create_callback(fns->lock_fns.dynlock_create_cb); \ + CRYPTO_set_dynlock_lock_callback(fns->lock_fns.dynlock_lock_cb); \ + CRYPTO_set_dynlock_destroy_callback(fns->lock_fns.dynlock_destroy_cb); \ + if(!CRYPTO_set_ex_data_implementation(fns->ex_data_fns)) \ + return 0; \ + if(!ERR_set_implementation(fns->err_fns)) return 0; \ + skip_cbs: \ + if(!fn(e,id)) return 0; \ + return 1; } + +/* + * If the loading application (or library) and the loaded ENGINE library + * share the same static data (eg. they're both dynamically linked to the + * same libcrypto.so) we need a way to avoid trying to set system callbacks - + * this would fail, and for the same reason that it's unnecessary to try. If + * the loaded ENGINE has (or gets from through the loader) its own copy of + * the libcrypto static data, we will need to set the callbacks. The easiest + * way to detect this is to have a function that returns a pointer to some + * static data and let the loading application and loaded ENGINE compare + * their respective values. + */ void *ENGINE_get_static_state(void); -#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV) +# if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV) void ENGINE_setup_bsd_cryptodev(void); -#endif +# endif /* BEGIN ERROR CODES */ -/* The following lines are auto generated by the script mkerr.pl. Any changes +/* + * The following lines are auto generated by the script mkerr.pl. Any changes * made after this point may be overwritten when the script is next run. */ void ERR_load_ENGINE_strings(void); @@ -753,88 +871,88 @@ void ERR_load_ENGINE_strings(void); /* Error codes for the ENGINE functions. */ /* Function codes. */ -#define ENGINE_F_DYNAMIC_CTRL 180 -#define ENGINE_F_DYNAMIC_GET_DATA_CTX 181 -#define ENGINE_F_DYNAMIC_LOAD 182 -#define ENGINE_F_DYNAMIC_SET_DATA_CTX 183 -#define ENGINE_F_ENGINE_ADD 105 -#define ENGINE_F_ENGINE_BY_ID 106 -#define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE 170 -#define ENGINE_F_ENGINE_CTRL 142 -#define ENGINE_F_ENGINE_CTRL_CMD 178 -#define ENGINE_F_ENGINE_CTRL_CMD_STRING 171 -#define ENGINE_F_ENGINE_FINISH 107 -#define ENGINE_F_ENGINE_FREE_UTIL 108 -#define ENGINE_F_ENGINE_GET_CIPHER 185 -#define ENGINE_F_ENGINE_GET_DEFAULT_TYPE 177 -#define ENGINE_F_ENGINE_GET_DIGEST 186 -#define ENGINE_F_ENGINE_GET_NEXT 115 -#define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH 193 -#define ENGINE_F_ENGINE_GET_PKEY_METH 192 -#define ENGINE_F_ENGINE_GET_PREV 116 -#define ENGINE_F_ENGINE_INIT 119 -#define ENGINE_F_ENGINE_LIST_ADD 120 -#define ENGINE_F_ENGINE_LIST_REMOVE 121 -#define ENGINE_F_ENGINE_LOAD_PRIVATE_KEY 150 -#define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY 151 -#define ENGINE_F_ENGINE_LOAD_SSL_CLIENT_CERT 194 -#define ENGINE_F_ENGINE_NEW 122 -#define ENGINE_F_ENGINE_REMOVE 123 -#define ENGINE_F_ENGINE_SET_DEFAULT_STRING 189 -#define ENGINE_F_ENGINE_SET_DEFAULT_TYPE 126 -#define ENGINE_F_ENGINE_SET_ID 129 -#define ENGINE_F_ENGINE_SET_NAME 130 -#define ENGINE_F_ENGINE_TABLE_REGISTER 184 -#define ENGINE_F_ENGINE_UNLOAD_KEY 152 -#define ENGINE_F_ENGINE_UNLOCKED_FINISH 191 -#define ENGINE_F_ENGINE_UP_REF 190 -#define ENGINE_F_INT_CTRL_HELPER 172 -#define ENGINE_F_INT_ENGINE_CONFIGURE 188 -#define ENGINE_F_INT_ENGINE_MODULE_INIT 187 -#define ENGINE_F_LOG_MESSAGE 141 +# define ENGINE_F_DYNAMIC_CTRL 180 +# define ENGINE_F_DYNAMIC_GET_DATA_CTX 181 +# define ENGINE_F_DYNAMIC_LOAD 182 +# define ENGINE_F_DYNAMIC_SET_DATA_CTX 183 +# define ENGINE_F_ENGINE_ADD 105 +# define ENGINE_F_ENGINE_BY_ID 106 +# define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE 170 +# define ENGINE_F_ENGINE_CTRL 142 +# define ENGINE_F_ENGINE_CTRL_CMD 178 +# define ENGINE_F_ENGINE_CTRL_CMD_STRING 171 +# define ENGINE_F_ENGINE_FINISH 107 +# define ENGINE_F_ENGINE_FREE_UTIL 108 +# define ENGINE_F_ENGINE_GET_CIPHER 185 +# define ENGINE_F_ENGINE_GET_DEFAULT_TYPE 177 +# define ENGINE_F_ENGINE_GET_DIGEST 186 +# define ENGINE_F_ENGINE_GET_NEXT 115 +# define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH 193 +# define ENGINE_F_ENGINE_GET_PKEY_METH 192 +# define ENGINE_F_ENGINE_GET_PREV 116 +# define ENGINE_F_ENGINE_INIT 119 +# define ENGINE_F_ENGINE_LIST_ADD 120 +# define ENGINE_F_ENGINE_LIST_REMOVE 121 +# define ENGINE_F_ENGINE_LOAD_PRIVATE_KEY 150 +# define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY 151 +# define ENGINE_F_ENGINE_LOAD_SSL_CLIENT_CERT 194 +# define ENGINE_F_ENGINE_NEW 122 +# define ENGINE_F_ENGINE_REMOVE 123 +# define ENGINE_F_ENGINE_SET_DEFAULT_STRING 189 +# define ENGINE_F_ENGINE_SET_DEFAULT_TYPE 126 +# define ENGINE_F_ENGINE_SET_ID 129 +# define ENGINE_F_ENGINE_SET_NAME 130 +# define ENGINE_F_ENGINE_TABLE_REGISTER 184 +# define ENGINE_F_ENGINE_UNLOAD_KEY 152 +# define ENGINE_F_ENGINE_UNLOCKED_FINISH 191 +# define ENGINE_F_ENGINE_UP_REF 190 +# define ENGINE_F_INT_CTRL_HELPER 172 +# define ENGINE_F_INT_ENGINE_CONFIGURE 188 +# define ENGINE_F_INT_ENGINE_MODULE_INIT 187 +# define ENGINE_F_LOG_MESSAGE 141 /* Reason codes. */ -#define ENGINE_R_ALREADY_LOADED 100 -#define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER 133 -#define ENGINE_R_CMD_NOT_EXECUTABLE 134 -#define ENGINE_R_COMMAND_TAKES_INPUT 135 -#define ENGINE_R_COMMAND_TAKES_NO_INPUT 136 -#define ENGINE_R_CONFLICTING_ENGINE_ID 103 -#define ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED 119 -#define ENGINE_R_DH_NOT_IMPLEMENTED 139 -#define ENGINE_R_DSA_NOT_IMPLEMENTED 140 -#define ENGINE_R_DSO_FAILURE 104 -#define ENGINE_R_DSO_NOT_FOUND 132 -#define ENGINE_R_ENGINES_SECTION_ERROR 148 -#define ENGINE_R_ENGINE_CONFIGURATION_ERROR 102 -#define ENGINE_R_ENGINE_IS_NOT_IN_LIST 105 -#define ENGINE_R_ENGINE_SECTION_ERROR 149 -#define ENGINE_R_FAILED_LOADING_PRIVATE_KEY 128 -#define ENGINE_R_FAILED_LOADING_PUBLIC_KEY 129 -#define ENGINE_R_FINISH_FAILED 106 -#define ENGINE_R_GET_HANDLE_FAILED 107 -#define ENGINE_R_ID_OR_NAME_MISSING 108 -#define ENGINE_R_INIT_FAILED 109 -#define ENGINE_R_INTERNAL_LIST_ERROR 110 -#define ENGINE_R_INVALID_ARGUMENT 143 -#define ENGINE_R_INVALID_CMD_NAME 137 -#define ENGINE_R_INVALID_CMD_NUMBER 138 -#define ENGINE_R_INVALID_INIT_VALUE 151 -#define ENGINE_R_INVALID_STRING 150 -#define ENGINE_R_NOT_INITIALISED 117 -#define ENGINE_R_NOT_LOADED 112 -#define ENGINE_R_NO_CONTROL_FUNCTION 120 -#define ENGINE_R_NO_INDEX 144 -#define ENGINE_R_NO_LOAD_FUNCTION 125 -#define ENGINE_R_NO_REFERENCE 130 -#define ENGINE_R_NO_SUCH_ENGINE 116 -#define ENGINE_R_NO_UNLOAD_FUNCTION 126 -#define ENGINE_R_PROVIDE_PARAMETERS 113 -#define ENGINE_R_RSA_NOT_IMPLEMENTED 141 -#define ENGINE_R_UNIMPLEMENTED_CIPHER 146 -#define ENGINE_R_UNIMPLEMENTED_DIGEST 147 -#define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD 101 -#define ENGINE_R_VERSION_INCOMPATIBILITY 145 +# define ENGINE_R_ALREADY_LOADED 100 +# define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER 133 +# define ENGINE_R_CMD_NOT_EXECUTABLE 134 +# define ENGINE_R_COMMAND_TAKES_INPUT 135 +# define ENGINE_R_COMMAND_TAKES_NO_INPUT 136 +# define ENGINE_R_CONFLICTING_ENGINE_ID 103 +# define ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED 119 +# define ENGINE_R_DH_NOT_IMPLEMENTED 139 +# define ENGINE_R_DSA_NOT_IMPLEMENTED 140 +# define ENGINE_R_DSO_FAILURE 104 +# define ENGINE_R_DSO_NOT_FOUND 132 +# define ENGINE_R_ENGINES_SECTION_ERROR 148 +# define ENGINE_R_ENGINE_CONFIGURATION_ERROR 102 +# define ENGINE_R_ENGINE_IS_NOT_IN_LIST 105 +# define ENGINE_R_ENGINE_SECTION_ERROR 149 +# define ENGINE_R_FAILED_LOADING_PRIVATE_KEY 128 +# define ENGINE_R_FAILED_LOADING_PUBLIC_KEY 129 +# define ENGINE_R_FINISH_FAILED 106 +# define ENGINE_R_GET_HANDLE_FAILED 107 +# define ENGINE_R_ID_OR_NAME_MISSING 108 +# define ENGINE_R_INIT_FAILED 109 +# define ENGINE_R_INTERNAL_LIST_ERROR 110 +# define ENGINE_R_INVALID_ARGUMENT 143 +# define ENGINE_R_INVALID_CMD_NAME 137 +# define ENGINE_R_INVALID_CMD_NUMBER 138 +# define ENGINE_R_INVALID_INIT_VALUE 151 +# define ENGINE_R_INVALID_STRING 150 +# define ENGINE_R_NOT_INITIALISED 117 +# define ENGINE_R_NOT_LOADED 112 +# define ENGINE_R_NO_CONTROL_FUNCTION 120 +# define ENGINE_R_NO_INDEX 144 +# define ENGINE_R_NO_LOAD_FUNCTION 125 +# define ENGINE_R_NO_REFERENCE 130 +# define ENGINE_R_NO_SUCH_ENGINE 116 +# define ENGINE_R_NO_UNLOAD_FUNCTION 126 +# define ENGINE_R_PROVIDE_PARAMETERS 113 +# define ENGINE_R_RSA_NOT_IMPLEMENTED 141 +# define ENGINE_R_UNIMPLEMENTED_CIPHER 146 +# define ENGINE_R_UNIMPLEMENTED_DIGEST 147 +# define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD 101 +# define ENGINE_R_VERSION_INCOMPATIBILITY 145 #ifdef __cplusplus } |