1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/engine/eng_dyn.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * project 2001. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "eng_int.h" 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/dso.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Shared libraries implementing ENGINEs for use by the "dynamic" ENGINE loader 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * should implement the hook-up functions with the following prototypes. */ 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Our ENGINE handlers */ 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_init(ENGINE *e); 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_finish(ENGINE *e); 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)); 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Predeclare our context type */ 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecttypedef struct st_dynamic_data_ctx dynamic_data_ctx; 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* The implementation for the important control command */ 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx); 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_SO_PATH ENGINE_CMD_BASE 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_NO_VCHECK (ENGINE_CMD_BASE + 1) 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_ID (ENGINE_CMD_BASE + 2) 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_LIST_ADD (ENGINE_CMD_BASE + 3) 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_DIR_LOAD (ENGINE_CMD_BASE + 4) 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_DIR_ADD (ENGINE_CMD_BASE + 5) 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DYNAMIC_CMD_LOAD (ENGINE_CMD_BASE + 6) 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* The constants used when creating the ENGINE */ 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const char *engine_dynamic_id = "dynamic"; 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const char *engine_dynamic_name = "Dynamic engine loading support"; 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const ENGINE_CMD_DEFN dynamic_cmd_defns[] = { 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_SO_PATH, 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "SO_PATH", 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Specifies the path to the new ENGINE shared library", 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_STRING}, 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_NO_VCHECK, 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "NO_VCHECK", 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Specifies to continue even if version checking fails (boolean)", 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_NUMERIC}, 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_ID, 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "ID", 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Specifies an ENGINE id name for loading", 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_STRING}, 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_LIST_ADD, 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "LIST_ADD", 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)", 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_NUMERIC}, 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_DIR_LOAD, 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "DIR_LOAD", 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)", 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_NUMERIC}, 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_DIR_ADD, 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "DIR_ADD", 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Adds a directory from which ENGINEs can be loaded", 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_STRING}, 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {DYNAMIC_CMD_LOAD, 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "LOAD", 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project "Load up the ENGINE specified by other settings", 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_CMD_FLAG_NO_INPUT}, 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {0, NULL, NULL, 0} 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic const ENGINE_CMD_DEFN dynamic_cmd_defns_empty[] = { 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project {0, NULL, NULL, 0} 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Loading code stores state inside the ENGINE structure via the "ex_data" 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * element. We load all our state into a single structure and use that as a 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * single context in the "ex_data" stack. */ 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstruct st_dynamic_data_ctx 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The DSO object we load that supplies the ENGINE code */ 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO *dynamic_dso; 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The function pointer to the version checking shared library function */ 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_v_check_fn v_check; 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The function pointer to the engine-binding shared library function */ 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_bind_engine bind_engine; 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The default name/path for loading the shared library */ 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const char *DYNAMIC_LIBNAME; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Whether to continue loading on a version check failure */ 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int no_vcheck; 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If non-NULL, stipulates the 'id' of the ENGINE to be loaded */ 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const char *engine_id; 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If non-zero, a successfully loaded ENGINE should be added to the internal 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ENGINE list. If 2, the add must succeed or the entire load should fail. */ 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int list_add_value; 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The symbol name for the version checking function */ 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const char *DYNAMIC_F1; 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* The symbol name for the "initialise ENGINE structure" function */ 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const char *DYNAMIC_F2; 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Whether to never use 'dirs', use 'dirs' as a fallback, or only use 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 'dirs' for loading. Default is to use 'dirs' as a fallback. */ 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int dir_load; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* A stack of directories from which ENGINEs could be loaded */ 149221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom STACK_OF(OPENSSL_STRING) *dirs; 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* This is the "ex_data" index we obtain and reserve for use with our context 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * structure. */ 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_ex_data_idx = -1; 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 156221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstromstatic void int_free_str(char *s) { OPENSSL_free(s); } 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Because our ex_data element may or may not get allocated depending on whether 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * a "first-use" occurs before the ENGINE is freed, we have a memory leak 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * problem to solve. We can't declare a "new" handler for the ex_data as we 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * don't want a dynamic_data_ctx in *all* ENGINE structures of all types (this 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * is a bug in the design of CRYPTO_EX_DATA). As such, we just declare a "free" 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * handler and that will get called if an ENGINE is being destroyed and there 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * was an ex_data element corresponding to our context type. */ 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic void dynamic_data_ctx_free_func(void *parent, void *ptr, 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_EX_DATA *ad, int idx, long argl, void *argp) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ptr) 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_data_ctx *ctx = (dynamic_data_ctx *)ptr; 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->dynamic_dso) 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_free(ctx->dynamic_dso); 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->DYNAMIC_LIBNAME) 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free((void*)ctx->DYNAMIC_LIBNAME); 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->engine_id) 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free((void*)ctx->engine_id); 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->dirs) 177221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom sk_OPENSSL_STRING_pop_free(ctx->dirs, int_free_str); 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(ctx); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Construct the per-ENGINE context. We create it blindly and then use a lock to 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * check for a race - if so, all but one of the threads "racing" will have 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * wasted their time. The alternative involves creating everything inside the 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lock which is far worse. */ 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_set_data_ctx(ENGINE *e, dynamic_data_ctx **ctx) 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_data_ctx *c; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c = OPENSSL_malloc(sizeof(dynamic_data_ctx)); 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!c) 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX,ERR_R_MALLOC_FAILURE); 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memset(c, 0, sizeof(dynamic_data_ctx)); 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->dynamic_dso = NULL; 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->v_check = NULL; 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->bind_engine = NULL; 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->DYNAMIC_LIBNAME = NULL; 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->no_vcheck = 0; 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->engine_id = NULL; 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->list_add_value = 0; 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->DYNAMIC_F1 = "v_check"; 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->DYNAMIC_F2 = "bind_engine"; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c->dir_load = 1; 206221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom c->dirs = sk_OPENSSL_STRING_new_null(); 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!c->dirs) 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_SET_DATA_CTX,ERR_R_MALLOC_FAILURE); 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(c); 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((*ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e, 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_ex_data_idx)) == NULL) 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Good, we're the first */ 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_set_ex_data(e, dynamic_ex_data_idx, c); 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *ctx = c; 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c = NULL; 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If we lost the race to set the context, c is non-NULL and *ctx is the 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * context of the thread that won. */ 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(c) 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(c); 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* This function retrieves the context structure from an ENGINE's "ex_data", or 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * if it doesn't exist yet, sets it up. */ 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic dynamic_data_ctx *dynamic_get_data_ctx(ENGINE *e) 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_data_ctx *ctx; 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(dynamic_ex_data_idx < 0) 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Create and register the ENGINE ex_data, and associate our 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "free" function with it to ensure any allocated contexts get 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * freed when an ENGINE goes underground. */ 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int new_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_data_ctx_free_func); 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(new_idx == -1) 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_GET_DATA_CTX,ENGINE_R_NO_INDEX); 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Avoid a race by checking again inside this lock */ 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(dynamic_ex_data_idx < 0) 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Good, someone didn't beat us to it */ 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_ex_data_idx = new_idx; 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project new_idx = -1; 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* In theory we could "give back" the index here if 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (new_idx>-1), but it's not possible and wouldn't gain us much 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * if it were. */ 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx = (dynamic_data_ctx *)ENGINE_get_ex_data(e, dynamic_ex_data_idx); 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check if the context needs to be created */ 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((ctx == NULL) && !dynamic_set_data_ctx(e, &ctx)) 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* "set_data" will set errors if necessary */ 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ctx; 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic ENGINE *engine_dynamic(void) 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE *ret = ENGINE_new(); 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ret) 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ENGINE_set_id(ret, engine_dynamic_id) || 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_name(ret, engine_dynamic_name) || 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_init_function(ret, dynamic_init) || 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_finish_function(ret, dynamic_finish) || 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_ctrl_function(ret, dynamic_ctrl) || 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_flags(ret, ENGINE_FLAGS_BY_ID_COPY) || 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project !ENGINE_set_cmd_defns(ret, dynamic_cmd_defns)) 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_free(ret); 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ret; 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid ENGINE_load_dynamic(void) 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE *toadd = engine_dynamic(); 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!toadd) return; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_add(toadd); 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the "add" worked, it gets a structural reference. So either way, 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * we release our just-created reference. */ 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_free(toadd); 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If the "add" didn't work, it was probably a conflict because it was 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * already added (eg. someone calling ENGINE_load_blah then calling 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ENGINE_load_builtin_engines() perhaps). */ 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_clear_error(); 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_init(ENGINE *e) 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We always return failure - the "dyanamic" engine itself can't be used 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for anything. */ 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_finish(ENGINE *e) 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* This should never be called on account of "dynamic_init" always 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * failing. */ 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)) 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_data_ctx *ctx = dynamic_get_data_ctx(e); 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int initialised; 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx) 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL,ENGINE_R_NOT_LOADED); 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project initialised = ((ctx->dynamic_dso == NULL) ? 0 : 1); 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* All our control commands require the ENGINE to be uninitialised */ 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(initialised) 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL, 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_ALREADY_LOADED); 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch(cmd) 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_SO_PATH: 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* a NULL 'p' or a string of zero-length is the same thing */ 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(p && (strlen((const char *)p) < 1)) 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = NULL; 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->DYNAMIC_LIBNAME) 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free((void*)ctx->DYNAMIC_LIBNAME); 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(p) 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->DYNAMIC_LIBNAME = BUF_strdup(p); 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->DYNAMIC_LIBNAME = NULL; 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return (ctx->DYNAMIC_LIBNAME ? 1 : 0); 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_NO_VCHECK: 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->no_vcheck = ((i == 0) ? 0 : 1); 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_ID: 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* a NULL 'p' or a string of zero-length is the same thing */ 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(p && (strlen((const char *)p) < 1)) 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p = NULL; 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->engine_id) 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free((void*)ctx->engine_id); 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(p) 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->engine_id = BUF_strdup(p); 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->engine_id = NULL; 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return (ctx->engine_id ? 1 : 0); 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_LIST_ADD: 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((i < 0) || (i > 2)) 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL, 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_ARGUMENT); 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->list_add_value = (int)i; 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_LOAD: 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return dynamic_load(e, ctx); 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_DIR_LOAD: 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((i < 0) || (i > 2)) 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL, 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_ARGUMENT); 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dir_load = (int)i; 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case DYNAMIC_CMD_DIR_ADD: 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* a NULL 'p' or a string of zero-length is the same thing */ 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!p || (strlen((const char *)p) < 1)) 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL, 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_INVALID_ARGUMENT); 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *tmp_str = BUF_strdup(p); 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!tmp_str) 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL, 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_R_MALLOC_FAILURE); 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 396221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom sk_OPENSSL_STRING_insert(ctx->dirs, tmp_str, -1); 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_CTRL,ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED); 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int int_load(dynamic_data_ctx *ctx) 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int num, loop; 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Unless told not to, try a direct load */ 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if((ctx->dir_load != 2) && (DSO_load(ctx->dynamic_dso, 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->DYNAMIC_LIBNAME, NULL, 0)) != NULL) 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* If we're not allowed to use 'dirs' or we have none, fail */ 414221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if(!ctx->dir_load || (num = sk_OPENSSL_STRING_num(ctx->dirs)) < 1) 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for(loop = 0; loop < num; loop++) 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 418221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom const char *s = sk_OPENSSL_STRING_value(ctx->dirs, loop); 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char *merge = DSO_merge(ctx->dynamic_dso, ctx->DYNAMIC_LIBNAME, s); 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!merge) 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(DSO_load(ctx->dynamic_dso, merge, NULL, 0)) 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Found what we're looking for */ 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(merge); 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(merge); 429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int dynamic_load(ENGINE *e, dynamic_data_ctx *ctx) 434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE cpy; 436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dynamic_fns fns; 437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx->dynamic_dso) 439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso = DSO_new(); 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx->DYNAMIC_LIBNAME) 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx->engine_id) 443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->DYNAMIC_LIBNAME = 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_convert_filename(ctx->dynamic_dso, ctx->engine_id); 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!int_load(ctx)) 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_LOAD, 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_DSO_NOT_FOUND); 451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_free(ctx->dynamic_dso); 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso = NULL; 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We have to find a bind function otherwise it'll always end badly */ 456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!(ctx->bind_engine = (dynamic_bind_engine)DSO_bind_func( 457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso, ctx->DYNAMIC_F2))) 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->bind_engine = NULL; 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_free(ctx->dynamic_dso); 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso = NULL; 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_LOAD, 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_DSO_FAILURE); 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do we perform version checking? */ 467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx->no_vcheck) 468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long vcheck_res = 0; 470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Now we try to find a version checking function and decide how 471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * to cope with failure if/when it fails. */ 472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->v_check = (dynamic_v_check_fn)DSO_bind_func( 473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso, ctx->DYNAMIC_F1); 474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->v_check) 475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project vcheck_res = ctx->v_check(OSSL_DYNAMIC_VERSION); 476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* We fail if the version checker veto'd the load *or* if it is 477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * deferring to us (by returning its version) and we think it is 478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * too old. */ 479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(vcheck_res < OSSL_DYNAMIC_OLDEST) 480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Fail */ 482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->bind_engine = NULL; 483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->v_check = NULL; 484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_free(ctx->dynamic_dso); 485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso = NULL; 486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_LOAD, 487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_VERSION_INCOMPATIBILITY); 488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* First binary copy the ENGINE structure so that we can roll back if 492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the hand-over fails */ 493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(&cpy, e, sizeof(ENGINE)); 494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Provide the ERR, "ex_data", memory, and locking callbacks so the 495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * loaded library uses our state rather than its own. FIXME: As noted in 496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * engine.h, much of this would be simplified if each area of code 497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * provided its own "summary" structure of all related callbacks. It 498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * would also increase opaqueness. */ 499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.static_state = ENGINE_get_static_state(); 500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.err_fns = ERR_get_implementation(); 501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.ex_data_fns = CRYPTO_get_ex_data_implementation(); 502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project CRYPTO_get_mem_functions(&fns.mem_fns.malloc_cb, 503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &fns.mem_fns.realloc_cb, 504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &fns.mem_fns.free_cb); 505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.lock_fns.lock_locking_cb = CRYPTO_get_locking_callback(); 506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.lock_fns.lock_add_lock_cb = CRYPTO_get_add_lock_callback(); 507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.lock_fns.dynlock_create_cb = CRYPTO_get_dynlock_create_callback(); 508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.lock_fns.dynlock_lock_cb = CRYPTO_get_dynlock_lock_callback(); 509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fns.lock_fns.dynlock_destroy_cb = CRYPTO_get_dynlock_destroy_callback(); 510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Now that we've loaded the dynamic engine, make sure no "dynamic" 511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ENGINE elements will show through. */ 512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project engine_set_all_null(e); 513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Try to bind the ENGINE onto our own ENGINE structure */ 515656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ctx->bind_engine(e, ctx->engine_id, &fns)) 516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->bind_engine = NULL; 518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->v_check = NULL; 519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project DSO_free(ctx->dynamic_dso); 520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->dynamic_dso = NULL; 521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_LOAD,ENGINE_R_INIT_FAILED); 522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Copy the original ENGINE structure back */ 523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(e, &cpy, sizeof(ENGINE)); 524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do we try to add this ENGINE to the internal list too? */ 527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->list_add_value > 0) 528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(!ENGINE_add(e)) 530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Do we tolerate this or fail? */ 532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->list_add_value > 1) 533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Fail - NB: By this time, it's too late to 535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * rollback, and trying to do so allows the 536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * bind_engine() code to have created leaks. We 537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * just have to fail where we are, after the 538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ENGINE has changed. */ 539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINEerr(ENGINE_F_DYNAMIC_LOAD, 540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ENGINE_R_CONFLICTING_ENGINE_ID); 541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Tolerate */ 544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ERR_clear_error(); 545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 549