1109998Smarkm/* conf_mod.c */ 2296341Sdelphij/* 3296341Sdelphij * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project 4296341Sdelphij * 2001. 5109998Smarkm */ 6109998Smarkm/* ==================================================================== 7109998Smarkm * Copyright (c) 2001 The OpenSSL Project. All rights reserved. 8109998Smarkm * 9109998Smarkm * Redistribution and use in source and binary forms, with or without 10109998Smarkm * modification, are permitted provided that the following conditions 11109998Smarkm * are met: 12109998Smarkm * 13109998Smarkm * 1. Redistributions of source code must retain the above copyright 14296341Sdelphij * notice, this list of conditions and the following disclaimer. 15109998Smarkm * 16109998Smarkm * 2. Redistributions in binary form must reproduce the above copyright 17109998Smarkm * notice, this list of conditions and the following disclaimer in 18109998Smarkm * the documentation and/or other materials provided with the 19109998Smarkm * distribution. 20109998Smarkm * 21109998Smarkm * 3. All advertising materials mentioning features or use of this 22109998Smarkm * software must display the following acknowledgment: 23109998Smarkm * "This product includes software developed by the OpenSSL Project 24109998Smarkm * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25109998Smarkm * 26109998Smarkm * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27109998Smarkm * endorse or promote products derived from this software without 28109998Smarkm * prior written permission. For written permission, please contact 29109998Smarkm * licensing@OpenSSL.org. 30109998Smarkm * 31109998Smarkm * 5. Products derived from this software may not be called "OpenSSL" 32109998Smarkm * nor may "OpenSSL" appear in their names without prior written 33109998Smarkm * permission of the OpenSSL Project. 34109998Smarkm * 35109998Smarkm * 6. Redistributions of any form whatsoever must retain the following 36109998Smarkm * acknowledgment: 37109998Smarkm * "This product includes software developed by the OpenSSL Project 38109998Smarkm * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39109998Smarkm * 40109998Smarkm * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41109998Smarkm * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43109998Smarkm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44109998Smarkm * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45109998Smarkm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46109998Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47109998Smarkm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49109998Smarkm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50109998Smarkm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51109998Smarkm * OF THE POSSIBILITY OF SUCH DAMAGE. 52109998Smarkm * ==================================================================== 53109998Smarkm * 54109998Smarkm * This product includes cryptographic software written by Eric Young 55109998Smarkm * (eay@cryptsoft.com). This product includes software written by Tim 56109998Smarkm * Hudson (tjh@cryptsoft.com). 57109998Smarkm * 58109998Smarkm */ 59109998Smarkm 60109998Smarkm#include <stdio.h> 61109998Smarkm#include <ctype.h> 62109998Smarkm#include <openssl/crypto.h> 63109998Smarkm#include "cryptlib.h" 64109998Smarkm#include <openssl/conf.h> 65109998Smarkm#include <openssl/dso.h> 66109998Smarkm#include <openssl/x509.h> 67109998Smarkm 68109998Smarkm#define DSO_mod_init_name "OPENSSL_init" 69109998Smarkm#define DSO_mod_finish_name "OPENSSL_finish" 70109998Smarkm 71296341Sdelphij/* 72296341Sdelphij * This structure contains a data about supported modules. entries in this 73296341Sdelphij * table correspond to either dynamic or static modules. 74109998Smarkm */ 75109998Smarkm 76296341Sdelphijstruct conf_module_st { 77296341Sdelphij /* DSO of this module or NULL if static */ 78296341Sdelphij DSO *dso; 79296341Sdelphij /* Name of the module */ 80296341Sdelphij char *name; 81296341Sdelphij /* Init function */ 82296341Sdelphij conf_init_func *init; 83296341Sdelphij /* Finish function */ 84296341Sdelphij conf_finish_func *finish; 85296341Sdelphij /* Number of successfully initialized modules */ 86296341Sdelphij int links; 87296341Sdelphij void *usr_data; 88296341Sdelphij}; 89109998Smarkm 90296341Sdelphij/* 91296341Sdelphij * This structure contains information about modules that have been 92296341Sdelphij * successfully initialized. There may be more than one entry for a given 93296341Sdelphij * module. 94109998Smarkm */ 95109998Smarkm 96296341Sdelphijstruct conf_imodule_st { 97296341Sdelphij CONF_MODULE *pmod; 98296341Sdelphij char *name; 99296341Sdelphij char *value; 100296341Sdelphij unsigned long flags; 101296341Sdelphij void *usr_data; 102296341Sdelphij}; 103109998Smarkm 104109998Smarkmstatic STACK_OF(CONF_MODULE) *supported_modules = NULL; 105109998Smarkmstatic STACK_OF(CONF_IMODULE) *initialized_modules = NULL; 106109998Smarkm 107109998Smarkmstatic void module_free(CONF_MODULE *md); 108109998Smarkmstatic void module_finish(CONF_IMODULE *imod); 109109998Smarkmstatic int module_run(const CONF *cnf, char *name, char *value, 110296341Sdelphij unsigned long flags); 111109998Smarkmstatic CONF_MODULE *module_add(DSO *dso, const char *name, 112296341Sdelphij conf_init_func *ifunc, 113296341Sdelphij conf_finish_func *ffunc); 114109998Smarkmstatic CONF_MODULE *module_find(char *name); 115109998Smarkmstatic int module_init(CONF_MODULE *pmod, char *name, char *value, 116296341Sdelphij const CONF *cnf); 117109998Smarkmstatic CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value, 118296341Sdelphij unsigned long flags); 119109998Smarkm 120109998Smarkm/* Main function: load modules from a CONF structure */ 121109998Smarkm 122109998Smarkmint CONF_modules_load(const CONF *cnf, const char *appname, 123296341Sdelphij unsigned long flags) 124296341Sdelphij{ 125296341Sdelphij STACK_OF(CONF_VALUE) *values; 126296341Sdelphij CONF_VALUE *vl; 127296341Sdelphij char *vsection = NULL; 128109998Smarkm 129296341Sdelphij int ret, i; 130109998Smarkm 131296341Sdelphij if (!cnf) 132296341Sdelphij return 1; 133109998Smarkm 134296341Sdelphij if (appname) 135296341Sdelphij vsection = NCONF_get_string(cnf, NULL, appname); 136109998Smarkm 137296341Sdelphij if (!appname || (!vsection && (flags & CONF_MFLAGS_DEFAULT_SECTION))) 138296341Sdelphij vsection = NCONF_get_string(cnf, NULL, "openssl_conf"); 139109998Smarkm 140296341Sdelphij if (!vsection) { 141296341Sdelphij ERR_clear_error(); 142296341Sdelphij return 1; 143296341Sdelphij } 144109998Smarkm 145296341Sdelphij values = NCONF_get_section(cnf, vsection); 146109998Smarkm 147296341Sdelphij if (!values) 148296341Sdelphij return 0; 149109998Smarkm 150296341Sdelphij for (i = 0; i < sk_CONF_VALUE_num(values); i++) { 151296341Sdelphij vl = sk_CONF_VALUE_value(values, i); 152296341Sdelphij ret = module_run(cnf, vl->name, vl->value, flags); 153296341Sdelphij if (ret <= 0) 154296341Sdelphij if (!(flags & CONF_MFLAGS_IGNORE_ERRORS)) 155296341Sdelphij return ret; 156296341Sdelphij } 157109998Smarkm 158296341Sdelphij return 1; 159109998Smarkm 160296341Sdelphij} 161109998Smarkm 162109998Smarkmint CONF_modules_load_file(const char *filename, const char *appname, 163296341Sdelphij unsigned long flags) 164296341Sdelphij{ 165296341Sdelphij char *file = NULL; 166296341Sdelphij CONF *conf = NULL; 167296341Sdelphij int ret = 0; 168296341Sdelphij conf = NCONF_new(NULL); 169296341Sdelphij if (!conf) 170296341Sdelphij goto err; 171109998Smarkm 172296341Sdelphij if (filename == NULL) { 173296341Sdelphij file = CONF_get1_default_config_file(); 174296341Sdelphij if (!file) 175296341Sdelphij goto err; 176296341Sdelphij } else 177296341Sdelphij file = (char *)filename; 178109998Smarkm 179296341Sdelphij if (NCONF_load(conf, file, NULL) <= 0) { 180296341Sdelphij if ((flags & CONF_MFLAGS_IGNORE_MISSING_FILE) && 181296341Sdelphij (ERR_GET_REASON(ERR_peek_last_error()) == CONF_R_NO_SUCH_FILE)) { 182296341Sdelphij ERR_clear_error(); 183296341Sdelphij ret = 1; 184296341Sdelphij } 185296341Sdelphij goto err; 186296341Sdelphij } 187109998Smarkm 188296341Sdelphij ret = CONF_modules_load(conf, appname, flags); 189109998Smarkm 190296341Sdelphij err: 191296341Sdelphij if (filename == NULL) 192296341Sdelphij OPENSSL_free(file); 193296341Sdelphij NCONF_free(conf); 194109998Smarkm 195296341Sdelphij return ret; 196296341Sdelphij} 197109998Smarkm 198109998Smarkmstatic int module_run(const CONF *cnf, char *name, char *value, 199296341Sdelphij unsigned long flags) 200296341Sdelphij{ 201296341Sdelphij CONF_MODULE *md; 202296341Sdelphij int ret; 203109998Smarkm 204296341Sdelphij md = module_find(name); 205109998Smarkm 206296341Sdelphij /* Module not found: try to load DSO */ 207296341Sdelphij if (!md && !(flags & CONF_MFLAGS_NO_DSO)) 208296341Sdelphij md = module_load_dso(cnf, name, value, flags); 209109998Smarkm 210296341Sdelphij if (!md) { 211296341Sdelphij if (!(flags & CONF_MFLAGS_SILENT)) { 212296341Sdelphij CONFerr(CONF_F_MODULE_RUN, CONF_R_UNKNOWN_MODULE_NAME); 213296341Sdelphij ERR_add_error_data(2, "module=", name); 214296341Sdelphij } 215296341Sdelphij return -1; 216296341Sdelphij } 217109998Smarkm 218296341Sdelphij ret = module_init(md, name, value, cnf); 219109998Smarkm 220296341Sdelphij if (ret <= 0) { 221296341Sdelphij if (!(flags & CONF_MFLAGS_SILENT)) { 222296341Sdelphij char rcode[DECIMAL_SIZE(ret) + 1]; 223296341Sdelphij CONFerr(CONF_F_MODULE_RUN, CONF_R_MODULE_INITIALIZATION_ERROR); 224296341Sdelphij BIO_snprintf(rcode, sizeof rcode, "%-8d", ret); 225296341Sdelphij ERR_add_error_data(6, "module=", name, ", value=", value, 226296341Sdelphij ", retcode=", rcode); 227296341Sdelphij } 228296341Sdelphij } 229109998Smarkm 230296341Sdelphij return ret; 231296341Sdelphij} 232109998Smarkm 233109998Smarkm/* Load a module from a DSO */ 234109998Smarkmstatic CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value, 235296341Sdelphij unsigned long flags) 236296341Sdelphij{ 237296341Sdelphij DSO *dso = NULL; 238296341Sdelphij conf_init_func *ifunc; 239296341Sdelphij conf_finish_func *ffunc; 240296341Sdelphij char *path = NULL; 241296341Sdelphij int errcode = 0; 242296341Sdelphij CONF_MODULE *md; 243296341Sdelphij /* Look for alternative path in module section */ 244296341Sdelphij path = NCONF_get_string(cnf, value, "path"); 245296341Sdelphij if (!path) { 246296341Sdelphij ERR_clear_error(); 247296341Sdelphij path = name; 248296341Sdelphij } 249296341Sdelphij dso = DSO_load(NULL, path, NULL, 0); 250296341Sdelphij if (!dso) { 251296341Sdelphij errcode = CONF_R_ERROR_LOADING_DSO; 252296341Sdelphij goto err; 253296341Sdelphij } 254296341Sdelphij ifunc = (conf_init_func *)DSO_bind_func(dso, DSO_mod_init_name); 255296341Sdelphij if (!ifunc) { 256296341Sdelphij errcode = CONF_R_MISSING_INIT_FUNCTION; 257296341Sdelphij goto err; 258296341Sdelphij } 259296341Sdelphij ffunc = (conf_finish_func *)DSO_bind_func(dso, DSO_mod_finish_name); 260296341Sdelphij /* All OK, add module */ 261296341Sdelphij md = module_add(dso, name, ifunc, ffunc); 262109998Smarkm 263296341Sdelphij if (!md) 264296341Sdelphij goto err; 265109998Smarkm 266296341Sdelphij return md; 267109998Smarkm 268296341Sdelphij err: 269296341Sdelphij if (dso) 270296341Sdelphij DSO_free(dso); 271296341Sdelphij CONFerr(CONF_F_MODULE_LOAD_DSO, errcode); 272296341Sdelphij ERR_add_error_data(4, "module=", name, ", path=", path); 273296341Sdelphij return NULL; 274296341Sdelphij} 275109998Smarkm 276109998Smarkm/* add module to list */ 277109998Smarkmstatic CONF_MODULE *module_add(DSO *dso, const char *name, 278296341Sdelphij conf_init_func *ifunc, conf_finish_func *ffunc) 279296341Sdelphij{ 280296341Sdelphij CONF_MODULE *tmod = NULL; 281296341Sdelphij if (supported_modules == NULL) 282296341Sdelphij supported_modules = sk_CONF_MODULE_new_null(); 283296341Sdelphij if (supported_modules == NULL) 284296341Sdelphij return NULL; 285296341Sdelphij tmod = OPENSSL_malloc(sizeof(CONF_MODULE)); 286296341Sdelphij if (tmod == NULL) 287296341Sdelphij return NULL; 288109998Smarkm 289296341Sdelphij tmod->dso = dso; 290296341Sdelphij tmod->name = BUF_strdup(name); 291296341Sdelphij tmod->init = ifunc; 292296341Sdelphij tmod->finish = ffunc; 293296341Sdelphij tmod->links = 0; 294109998Smarkm 295296341Sdelphij if (!sk_CONF_MODULE_push(supported_modules, tmod)) { 296296341Sdelphij OPENSSL_free(tmod); 297296341Sdelphij return NULL; 298296341Sdelphij } 299109998Smarkm 300296341Sdelphij return tmod; 301296341Sdelphij} 302109998Smarkm 303296341Sdelphij/* 304296341Sdelphij * Find a module from the list. We allow module names of the form 305296341Sdelphij * modname.XXXX to just search for modname to allow the same module to be 306296341Sdelphij * initialized more than once. 307109998Smarkm */ 308109998Smarkm 309109998Smarkmstatic CONF_MODULE *module_find(char *name) 310296341Sdelphij{ 311296341Sdelphij CONF_MODULE *tmod; 312296341Sdelphij int i, nchar; 313296341Sdelphij char *p; 314296341Sdelphij p = strrchr(name, '.'); 315109998Smarkm 316296341Sdelphij if (p) 317296341Sdelphij nchar = p - name; 318296341Sdelphij else 319296341Sdelphij nchar = strlen(name); 320109998Smarkm 321296341Sdelphij for (i = 0; i < sk_CONF_MODULE_num(supported_modules); i++) { 322296341Sdelphij tmod = sk_CONF_MODULE_value(supported_modules, i); 323296341Sdelphij if (!strncmp(tmod->name, name, nchar)) 324296341Sdelphij return tmod; 325296341Sdelphij } 326109998Smarkm 327296341Sdelphij return NULL; 328109998Smarkm 329296341Sdelphij} 330109998Smarkm 331109998Smarkm/* initialize a module */ 332109998Smarkmstatic int module_init(CONF_MODULE *pmod, char *name, char *value, 333296341Sdelphij const CONF *cnf) 334296341Sdelphij{ 335296341Sdelphij int ret = 1; 336296341Sdelphij int init_called = 0; 337296341Sdelphij CONF_IMODULE *imod = NULL; 338109998Smarkm 339296341Sdelphij /* Otherwise add initialized module to list */ 340296341Sdelphij imod = OPENSSL_malloc(sizeof(CONF_IMODULE)); 341296341Sdelphij if (!imod) 342296341Sdelphij goto err; 343109998Smarkm 344296341Sdelphij imod->pmod = pmod; 345296341Sdelphij imod->name = BUF_strdup(name); 346296341Sdelphij imod->value = BUF_strdup(value); 347296341Sdelphij imod->usr_data = NULL; 348109998Smarkm 349296341Sdelphij if (!imod->name || !imod->value) 350296341Sdelphij goto memerr; 351109998Smarkm 352296341Sdelphij /* Try to initialize module */ 353296341Sdelphij if (pmod->init) { 354296341Sdelphij ret = pmod->init(imod, cnf); 355296341Sdelphij init_called = 1; 356296341Sdelphij /* Error occurred, exit */ 357296341Sdelphij if (ret <= 0) 358296341Sdelphij goto err; 359296341Sdelphij } 360109998Smarkm 361296341Sdelphij if (initialized_modules == NULL) { 362296341Sdelphij initialized_modules = sk_CONF_IMODULE_new_null(); 363296341Sdelphij if (!initialized_modules) { 364296341Sdelphij CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); 365296341Sdelphij goto err; 366296341Sdelphij } 367296341Sdelphij } 368109998Smarkm 369296341Sdelphij if (!sk_CONF_IMODULE_push(initialized_modules, imod)) { 370296341Sdelphij CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); 371296341Sdelphij goto err; 372296341Sdelphij } 373109998Smarkm 374296341Sdelphij pmod->links++; 375109998Smarkm 376296341Sdelphij return ret; 377109998Smarkm 378296341Sdelphij err: 379109998Smarkm 380296341Sdelphij /* We've started the module so we'd better finish it */ 381296341Sdelphij if (pmod->finish && init_called) 382296341Sdelphij pmod->finish(imod); 383109998Smarkm 384296341Sdelphij memerr: 385296341Sdelphij if (imod) { 386296341Sdelphij if (imod->name) 387296341Sdelphij OPENSSL_free(imod->name); 388296341Sdelphij if (imod->value) 389296341Sdelphij OPENSSL_free(imod->value); 390296341Sdelphij OPENSSL_free(imod); 391296341Sdelphij } 392109998Smarkm 393296341Sdelphij return -1; 394109998Smarkm 395296341Sdelphij} 396109998Smarkm 397296341Sdelphij/* 398296341Sdelphij * Unload any dynamic modules that have a link count of zero: i.e. have no 399296341Sdelphij * active initialized modules. If 'all' is set then all modules are unloaded 400296341Sdelphij * including static ones. 401109998Smarkm */ 402109998Smarkm 403109998Smarkmvoid CONF_modules_unload(int all) 404296341Sdelphij{ 405296341Sdelphij int i; 406296341Sdelphij CONF_MODULE *md; 407296341Sdelphij CONF_modules_finish(); 408296341Sdelphij /* unload modules in reverse order */ 409296341Sdelphij for (i = sk_CONF_MODULE_num(supported_modules) - 1; i >= 0; i--) { 410296341Sdelphij md = sk_CONF_MODULE_value(supported_modules, i); 411296341Sdelphij /* If static or in use and 'all' not set ignore it */ 412296341Sdelphij if (((md->links > 0) || !md->dso) && !all) 413296341Sdelphij continue; 414296341Sdelphij /* Since we're working in reverse this is OK */ 415296341Sdelphij (void)sk_CONF_MODULE_delete(supported_modules, i); 416296341Sdelphij module_free(md); 417296341Sdelphij } 418296341Sdelphij if (sk_CONF_MODULE_num(supported_modules) == 0) { 419296341Sdelphij sk_CONF_MODULE_free(supported_modules); 420296341Sdelphij supported_modules = NULL; 421296341Sdelphij } 422296341Sdelphij} 423109998Smarkm 424109998Smarkm/* unload a single module */ 425109998Smarkmstatic void module_free(CONF_MODULE *md) 426296341Sdelphij{ 427296341Sdelphij if (md->dso) 428296341Sdelphij DSO_free(md->dso); 429296341Sdelphij OPENSSL_free(md->name); 430296341Sdelphij OPENSSL_free(md); 431296341Sdelphij} 432109998Smarkm 433109998Smarkm/* finish and free up all modules instances */ 434109998Smarkm 435109998Smarkmvoid CONF_modules_finish(void) 436296341Sdelphij{ 437296341Sdelphij CONF_IMODULE *imod; 438296341Sdelphij while (sk_CONF_IMODULE_num(initialized_modules) > 0) { 439296341Sdelphij imod = sk_CONF_IMODULE_pop(initialized_modules); 440296341Sdelphij module_finish(imod); 441296341Sdelphij } 442296341Sdelphij sk_CONF_IMODULE_free(initialized_modules); 443296341Sdelphij initialized_modules = NULL; 444296341Sdelphij} 445109998Smarkm 446109998Smarkm/* finish a module instance */ 447109998Smarkm 448109998Smarkmstatic void module_finish(CONF_IMODULE *imod) 449296341Sdelphij{ 450296341Sdelphij if (imod->pmod->finish) 451296341Sdelphij imod->pmod->finish(imod); 452296341Sdelphij imod->pmod->links--; 453296341Sdelphij OPENSSL_free(imod->name); 454296341Sdelphij OPENSSL_free(imod->value); 455296341Sdelphij OPENSSL_free(imod); 456296341Sdelphij} 457109998Smarkm 458109998Smarkm/* Add a static module to OpenSSL */ 459109998Smarkm 460296341Sdelphijint CONF_module_add(const char *name, conf_init_func *ifunc, 461296341Sdelphij conf_finish_func *ffunc) 462296341Sdelphij{ 463296341Sdelphij if (module_add(NULL, name, ifunc, ffunc)) 464296341Sdelphij return 1; 465296341Sdelphij else 466296341Sdelphij return 0; 467296341Sdelphij} 468109998Smarkm 469109998Smarkmvoid CONF_modules_free(void) 470296341Sdelphij{ 471296341Sdelphij CONF_modules_finish(); 472296341Sdelphij CONF_modules_unload(1); 473296341Sdelphij} 474109998Smarkm 475109998Smarkm/* Utility functions */ 476109998Smarkm 477109998Smarkmconst char *CONF_imodule_get_name(const CONF_IMODULE *md) 478296341Sdelphij{ 479296341Sdelphij return md->name; 480296341Sdelphij} 481109998Smarkm 482109998Smarkmconst char *CONF_imodule_get_value(const CONF_IMODULE *md) 483296341Sdelphij{ 484296341Sdelphij return md->value; 485296341Sdelphij} 486109998Smarkm 487109998Smarkmvoid *CONF_imodule_get_usr_data(const CONF_IMODULE *md) 488296341Sdelphij{ 489296341Sdelphij return md->usr_data; 490296341Sdelphij} 491109998Smarkm 492109998Smarkmvoid CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data) 493296341Sdelphij{ 494296341Sdelphij md->usr_data = usr_data; 495296341Sdelphij} 496109998Smarkm 497109998SmarkmCONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md) 498296341Sdelphij{ 499296341Sdelphij return md->pmod; 500296341Sdelphij} 501109998Smarkm 502109998Smarkmunsigned long CONF_imodule_get_flags(const CONF_IMODULE *md) 503296341Sdelphij{ 504296341Sdelphij return md->flags; 505296341Sdelphij} 506109998Smarkm 507109998Smarkmvoid CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags) 508296341Sdelphij{ 509296341Sdelphij md->flags = flags; 510296341Sdelphij} 511109998Smarkm 512109998Smarkmvoid *CONF_module_get_usr_data(CONF_MODULE *pmod) 513296341Sdelphij{ 514296341Sdelphij return pmod->usr_data; 515296341Sdelphij} 516109998Smarkm 517109998Smarkmvoid CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data) 518296341Sdelphij{ 519296341Sdelphij pmod->usr_data = usr_data; 520296341Sdelphij} 521109998Smarkm 522109998Smarkm/* Return default config file name */ 523109998Smarkm 524109998Smarkmchar *CONF_get1_default_config_file(void) 525296341Sdelphij{ 526296341Sdelphij char *file; 527296341Sdelphij int len; 528109998Smarkm 529296341Sdelphij file = getenv("OPENSSL_CONF"); 530296341Sdelphij if (file) 531296341Sdelphij return BUF_strdup(file); 532109998Smarkm 533296341Sdelphij len = strlen(X509_get_default_cert_area()); 534109998Smarkm#ifndef OPENSSL_SYS_VMS 535296341Sdelphij len++; 536109998Smarkm#endif 537296341Sdelphij len += strlen(OPENSSL_CONF); 538109998Smarkm 539296341Sdelphij file = OPENSSL_malloc(len + 1); 540109998Smarkm 541296341Sdelphij if (!file) 542296341Sdelphij return NULL; 543296341Sdelphij BUF_strlcpy(file, X509_get_default_cert_area(), len + 1); 544109998Smarkm#ifndef OPENSSL_SYS_VMS 545296341Sdelphij BUF_strlcat(file, "/", len + 1); 546109998Smarkm#endif 547296341Sdelphij BUF_strlcat(file, OPENSSL_CONF, len + 1); 548109998Smarkm 549296341Sdelphij return file; 550296341Sdelphij} 551109998Smarkm 552296341Sdelphij/* 553296341Sdelphij * This function takes a list separated by 'sep' and calls the callback 554296341Sdelphij * function giving the start and length of each member optionally stripping 555296341Sdelphij * leading and trailing whitespace. This can be used to parse comma separated 556296341Sdelphij * lists for example. 557109998Smarkm */ 558109998Smarkm 559127128Snectarint CONF_parse_list(const char *list_, int sep, int nospc, 560296341Sdelphij int (*list_cb) (const char *elem, int len, void *usr), 561296341Sdelphij void *arg) 562296341Sdelphij{ 563296341Sdelphij int ret; 564296341Sdelphij const char *lstart, *tmpend, *p; 565238405Sjkim 566296341Sdelphij if (list_ == NULL) { 567296341Sdelphij CONFerr(CONF_F_CONF_PARSE_LIST, CONF_R_LIST_CANNOT_BE_NULL); 568296341Sdelphij return 0; 569296341Sdelphij } 570238405Sjkim 571296341Sdelphij lstart = list_; 572296341Sdelphij for (;;) { 573296341Sdelphij if (nospc) { 574296341Sdelphij while (*lstart && isspace((unsigned char)*lstart)) 575296341Sdelphij lstart++; 576296341Sdelphij } 577296341Sdelphij p = strchr(lstart, sep); 578296341Sdelphij if (p == lstart || !*lstart) 579296341Sdelphij ret = list_cb(NULL, 0, arg); 580296341Sdelphij else { 581296341Sdelphij if (p) 582296341Sdelphij tmpend = p - 1; 583296341Sdelphij else 584296341Sdelphij tmpend = lstart + strlen(lstart) - 1; 585296341Sdelphij if (nospc) { 586296341Sdelphij while (isspace((unsigned char)*tmpend)) 587296341Sdelphij tmpend--; 588296341Sdelphij } 589296341Sdelphij ret = list_cb(lstart, tmpend - lstart + 1, arg); 590296341Sdelphij } 591296341Sdelphij if (ret <= 0) 592296341Sdelphij return ret; 593296341Sdelphij if (p == NULL) 594296341Sdelphij return 1; 595296341Sdelphij lstart = p + 1; 596296341Sdelphij } 597296341Sdelphij} 598