1109998Smarkm/* conf_mod.c */ 2296465Sdelphij/* 3296465Sdelphij * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project 4296465Sdelphij * 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 14296465Sdelphij * 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 71296465Sdelphij/* 72296465Sdelphij * This structure contains a data about supported modules. entries in this 73296465Sdelphij * table correspond to either dynamic or static modules. 74109998Smarkm */ 75109998Smarkm 76296465Sdelphijstruct conf_module_st { 77296465Sdelphij /* DSO of this module or NULL if static */ 78296465Sdelphij DSO *dso; 79296465Sdelphij /* Name of the module */ 80296465Sdelphij char *name; 81296465Sdelphij /* Init function */ 82296465Sdelphij conf_init_func *init; 83296465Sdelphij /* Finish function */ 84296465Sdelphij conf_finish_func *finish; 85296465Sdelphij /* Number of successfully initialized modules */ 86296465Sdelphij int links; 87296465Sdelphij void *usr_data; 88296465Sdelphij}; 89109998Smarkm 90296465Sdelphij/* 91296465Sdelphij * This structure contains information about modules that have been 92296465Sdelphij * successfully initialized. There may be more than one entry for a given 93296465Sdelphij * module. 94109998Smarkm */ 95109998Smarkm 96296465Sdelphijstruct conf_imodule_st { 97296465Sdelphij CONF_MODULE *pmod; 98296465Sdelphij char *name; 99296465Sdelphij char *value; 100296465Sdelphij unsigned long flags; 101296465Sdelphij void *usr_data; 102296465Sdelphij}; 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, 110296465Sdelphij unsigned long flags); 111109998Smarkmstatic CONF_MODULE *module_add(DSO *dso, const char *name, 112296465Sdelphij conf_init_func *ifunc, 113296465Sdelphij conf_finish_func *ffunc); 114109998Smarkmstatic CONF_MODULE *module_find(char *name); 115109998Smarkmstatic int module_init(CONF_MODULE *pmod, char *name, char *value, 116296465Sdelphij const CONF *cnf); 117109998Smarkmstatic CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value, 118296465Sdelphij unsigned long flags); 119109998Smarkm 120109998Smarkm/* Main function: load modules from a CONF structure */ 121109998Smarkm 122109998Smarkmint CONF_modules_load(const CONF *cnf, const char *appname, 123296465Sdelphij unsigned long flags) 124296465Sdelphij{ 125296465Sdelphij STACK_OF(CONF_VALUE) *values; 126296465Sdelphij CONF_VALUE *vl; 127296465Sdelphij char *vsection = NULL; 128109998Smarkm 129296465Sdelphij int ret, i; 130109998Smarkm 131296465Sdelphij if (!cnf) 132296465Sdelphij return 1; 133109998Smarkm 134296465Sdelphij if (appname) 135296465Sdelphij vsection = NCONF_get_string(cnf, NULL, appname); 136109998Smarkm 137296465Sdelphij if (!appname || (!vsection && (flags & CONF_MFLAGS_DEFAULT_SECTION))) 138296465Sdelphij vsection = NCONF_get_string(cnf, NULL, "openssl_conf"); 139109998Smarkm 140296465Sdelphij if (!vsection) { 141296465Sdelphij ERR_clear_error(); 142296465Sdelphij return 1; 143296465Sdelphij } 144109998Smarkm 145296465Sdelphij values = NCONF_get_section(cnf, vsection); 146109998Smarkm 147296465Sdelphij if (!values) 148296465Sdelphij return 0; 149109998Smarkm 150296465Sdelphij for (i = 0; i < sk_CONF_VALUE_num(values); i++) { 151296465Sdelphij vl = sk_CONF_VALUE_value(values, i); 152296465Sdelphij ret = module_run(cnf, vl->name, vl->value, flags); 153296465Sdelphij if (ret <= 0) 154296465Sdelphij if (!(flags & CONF_MFLAGS_IGNORE_ERRORS)) 155296465Sdelphij return ret; 156296465Sdelphij } 157109998Smarkm 158296465Sdelphij return 1; 159109998Smarkm 160296465Sdelphij} 161109998Smarkm 162109998Smarkmint CONF_modules_load_file(const char *filename, const char *appname, 163296465Sdelphij unsigned long flags) 164296465Sdelphij{ 165296465Sdelphij char *file = NULL; 166296465Sdelphij CONF *conf = NULL; 167296465Sdelphij int ret = 0; 168296465Sdelphij conf = NCONF_new(NULL); 169296465Sdelphij if (!conf) 170296465Sdelphij goto err; 171109998Smarkm 172296465Sdelphij if (filename == NULL) { 173296465Sdelphij file = CONF_get1_default_config_file(); 174296465Sdelphij if (!file) 175296465Sdelphij goto err; 176296465Sdelphij } else 177296465Sdelphij file = (char *)filename; 178109998Smarkm 179296465Sdelphij if (NCONF_load(conf, file, NULL) <= 0) { 180296465Sdelphij if ((flags & CONF_MFLAGS_IGNORE_MISSING_FILE) && 181296465Sdelphij (ERR_GET_REASON(ERR_peek_last_error()) == CONF_R_NO_SUCH_FILE)) { 182296465Sdelphij ERR_clear_error(); 183296465Sdelphij ret = 1; 184296465Sdelphij } 185296465Sdelphij goto err; 186296465Sdelphij } 187109998Smarkm 188296465Sdelphij ret = CONF_modules_load(conf, appname, flags); 189109998Smarkm 190296465Sdelphij err: 191296465Sdelphij if (filename == NULL) 192296465Sdelphij OPENSSL_free(file); 193296465Sdelphij NCONF_free(conf); 194109998Smarkm 195296465Sdelphij return ret; 196296465Sdelphij} 197109998Smarkm 198109998Smarkmstatic int module_run(const CONF *cnf, char *name, char *value, 199296465Sdelphij unsigned long flags) 200296465Sdelphij{ 201296465Sdelphij CONF_MODULE *md; 202296465Sdelphij int ret; 203109998Smarkm 204296465Sdelphij md = module_find(name); 205109998Smarkm 206296465Sdelphij /* Module not found: try to load DSO */ 207296465Sdelphij if (!md && !(flags & CONF_MFLAGS_NO_DSO)) 208296465Sdelphij md = module_load_dso(cnf, name, value, flags); 209109998Smarkm 210296465Sdelphij if (!md) { 211296465Sdelphij if (!(flags & CONF_MFLAGS_SILENT)) { 212296465Sdelphij CONFerr(CONF_F_MODULE_RUN, CONF_R_UNKNOWN_MODULE_NAME); 213296465Sdelphij ERR_add_error_data(2, "module=", name); 214296465Sdelphij } 215296465Sdelphij return -1; 216296465Sdelphij } 217109998Smarkm 218296465Sdelphij ret = module_init(md, name, value, cnf); 219109998Smarkm 220296465Sdelphij if (ret <= 0) { 221296465Sdelphij if (!(flags & CONF_MFLAGS_SILENT)) { 222296465Sdelphij char rcode[DECIMAL_SIZE(ret) + 1]; 223296465Sdelphij CONFerr(CONF_F_MODULE_RUN, CONF_R_MODULE_INITIALIZATION_ERROR); 224296465Sdelphij BIO_snprintf(rcode, sizeof rcode, "%-8d", ret); 225296465Sdelphij ERR_add_error_data(6, "module=", name, ", value=", value, 226296465Sdelphij ", retcode=", rcode); 227296465Sdelphij } 228296465Sdelphij } 229109998Smarkm 230296465Sdelphij return ret; 231296465Sdelphij} 232109998Smarkm 233109998Smarkm/* Load a module from a DSO */ 234109998Smarkmstatic CONF_MODULE *module_load_dso(const CONF *cnf, char *name, char *value, 235296465Sdelphij unsigned long flags) 236296465Sdelphij{ 237296465Sdelphij DSO *dso = NULL; 238296465Sdelphij conf_init_func *ifunc; 239296465Sdelphij conf_finish_func *ffunc; 240296465Sdelphij char *path = NULL; 241296465Sdelphij int errcode = 0; 242296465Sdelphij CONF_MODULE *md; 243296465Sdelphij /* Look for alternative path in module section */ 244296465Sdelphij path = NCONF_get_string(cnf, value, "path"); 245296465Sdelphij if (!path) { 246296465Sdelphij ERR_clear_error(); 247296465Sdelphij path = name; 248296465Sdelphij } 249296465Sdelphij dso = DSO_load(NULL, path, NULL, 0); 250296465Sdelphij if (!dso) { 251296465Sdelphij errcode = CONF_R_ERROR_LOADING_DSO; 252296465Sdelphij goto err; 253296465Sdelphij } 254296465Sdelphij ifunc = (conf_init_func *)DSO_bind_func(dso, DSO_mod_init_name); 255296465Sdelphij if (!ifunc) { 256296465Sdelphij errcode = CONF_R_MISSING_INIT_FUNCTION; 257296465Sdelphij goto err; 258296465Sdelphij } 259296465Sdelphij ffunc = (conf_finish_func *)DSO_bind_func(dso, DSO_mod_finish_name); 260296465Sdelphij /* All OK, add module */ 261296465Sdelphij md = module_add(dso, name, ifunc, ffunc); 262109998Smarkm 263296465Sdelphij if (!md) 264296465Sdelphij goto err; 265109998Smarkm 266296465Sdelphij return md; 267109998Smarkm 268296465Sdelphij err: 269296465Sdelphij if (dso) 270296465Sdelphij DSO_free(dso); 271296465Sdelphij CONFerr(CONF_F_MODULE_LOAD_DSO, errcode); 272296465Sdelphij ERR_add_error_data(4, "module=", name, ", path=", path); 273296465Sdelphij return NULL; 274296465Sdelphij} 275109998Smarkm 276109998Smarkm/* add module to list */ 277109998Smarkmstatic CONF_MODULE *module_add(DSO *dso, const char *name, 278296465Sdelphij conf_init_func *ifunc, conf_finish_func *ffunc) 279296465Sdelphij{ 280296465Sdelphij CONF_MODULE *tmod = NULL; 281296465Sdelphij if (supported_modules == NULL) 282296465Sdelphij supported_modules = sk_CONF_MODULE_new_null(); 283296465Sdelphij if (supported_modules == NULL) 284296465Sdelphij return NULL; 285296465Sdelphij tmod = OPENSSL_malloc(sizeof(CONF_MODULE)); 286296465Sdelphij if (tmod == NULL) 287296465Sdelphij return NULL; 288109998Smarkm 289296465Sdelphij tmod->dso = dso; 290296465Sdelphij tmod->name = BUF_strdup(name); 291296465Sdelphij tmod->init = ifunc; 292296465Sdelphij tmod->finish = ffunc; 293296465Sdelphij tmod->links = 0; 294109998Smarkm 295296465Sdelphij if (!sk_CONF_MODULE_push(supported_modules, tmod)) { 296296465Sdelphij OPENSSL_free(tmod); 297296465Sdelphij return NULL; 298296465Sdelphij } 299109998Smarkm 300296465Sdelphij return tmod; 301296465Sdelphij} 302109998Smarkm 303296465Sdelphij/* 304296465Sdelphij * Find a module from the list. We allow module names of the form 305296465Sdelphij * modname.XXXX to just search for modname to allow the same module to be 306296465Sdelphij * initialized more than once. 307109998Smarkm */ 308109998Smarkm 309109998Smarkmstatic CONF_MODULE *module_find(char *name) 310296465Sdelphij{ 311296465Sdelphij CONF_MODULE *tmod; 312296465Sdelphij int i, nchar; 313296465Sdelphij char *p; 314296465Sdelphij p = strrchr(name, '.'); 315109998Smarkm 316296465Sdelphij if (p) 317296465Sdelphij nchar = p - name; 318296465Sdelphij else 319296465Sdelphij nchar = strlen(name); 320109998Smarkm 321296465Sdelphij for (i = 0; i < sk_CONF_MODULE_num(supported_modules); i++) { 322296465Sdelphij tmod = sk_CONF_MODULE_value(supported_modules, i); 323296465Sdelphij if (!strncmp(tmod->name, name, nchar)) 324296465Sdelphij return tmod; 325296465Sdelphij } 326109998Smarkm 327296465Sdelphij return NULL; 328109998Smarkm 329296465Sdelphij} 330109998Smarkm 331109998Smarkm/* initialize a module */ 332109998Smarkmstatic int module_init(CONF_MODULE *pmod, char *name, char *value, 333296465Sdelphij const CONF *cnf) 334296465Sdelphij{ 335296465Sdelphij int ret = 1; 336296465Sdelphij int init_called = 0; 337296465Sdelphij CONF_IMODULE *imod = NULL; 338109998Smarkm 339296465Sdelphij /* Otherwise add initialized module to list */ 340296465Sdelphij imod = OPENSSL_malloc(sizeof(CONF_IMODULE)); 341296465Sdelphij if (!imod) 342296465Sdelphij goto err; 343109998Smarkm 344296465Sdelphij imod->pmod = pmod; 345296465Sdelphij imod->name = BUF_strdup(name); 346296465Sdelphij imod->value = BUF_strdup(value); 347296465Sdelphij imod->usr_data = NULL; 348109998Smarkm 349296465Sdelphij if (!imod->name || !imod->value) 350296465Sdelphij goto memerr; 351109998Smarkm 352296465Sdelphij /* Try to initialize module */ 353296465Sdelphij if (pmod->init) { 354296465Sdelphij ret = pmod->init(imod, cnf); 355296465Sdelphij init_called = 1; 356296465Sdelphij /* Error occurred, exit */ 357296465Sdelphij if (ret <= 0) 358296465Sdelphij goto err; 359296465Sdelphij } 360109998Smarkm 361296465Sdelphij if (initialized_modules == NULL) { 362296465Sdelphij initialized_modules = sk_CONF_IMODULE_new_null(); 363296465Sdelphij if (!initialized_modules) { 364296465Sdelphij CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); 365296465Sdelphij goto err; 366296465Sdelphij } 367296465Sdelphij } 368109998Smarkm 369296465Sdelphij if (!sk_CONF_IMODULE_push(initialized_modules, imod)) { 370296465Sdelphij CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); 371296465Sdelphij goto err; 372296465Sdelphij } 373109998Smarkm 374296465Sdelphij pmod->links++; 375109998Smarkm 376296465Sdelphij return ret; 377109998Smarkm 378296465Sdelphij err: 379109998Smarkm 380296465Sdelphij /* We've started the module so we'd better finish it */ 381296465Sdelphij if (pmod->finish && init_called) 382296465Sdelphij pmod->finish(imod); 383109998Smarkm 384296465Sdelphij memerr: 385296465Sdelphij if (imod) { 386296465Sdelphij if (imod->name) 387296465Sdelphij OPENSSL_free(imod->name); 388296465Sdelphij if (imod->value) 389296465Sdelphij OPENSSL_free(imod->value); 390296465Sdelphij OPENSSL_free(imod); 391296465Sdelphij } 392109998Smarkm 393296465Sdelphij return -1; 394109998Smarkm 395296465Sdelphij} 396109998Smarkm 397296465Sdelphij/* 398296465Sdelphij * Unload any dynamic modules that have a link count of zero: i.e. have no 399296465Sdelphij * active initialized modules. If 'all' is set then all modules are unloaded 400296465Sdelphij * including static ones. 401109998Smarkm */ 402109998Smarkm 403109998Smarkmvoid CONF_modules_unload(int all) 404296465Sdelphij{ 405296465Sdelphij int i; 406296465Sdelphij CONF_MODULE *md; 407296465Sdelphij CONF_modules_finish(); 408296465Sdelphij /* unload modules in reverse order */ 409296465Sdelphij for (i = sk_CONF_MODULE_num(supported_modules) - 1; i >= 0; i--) { 410296465Sdelphij md = sk_CONF_MODULE_value(supported_modules, i); 411296465Sdelphij /* If static or in use and 'all' not set ignore it */ 412296465Sdelphij if (((md->links > 0) || !md->dso) && !all) 413296465Sdelphij continue; 414296465Sdelphij /* Since we're working in reverse this is OK */ 415296465Sdelphij (void)sk_CONF_MODULE_delete(supported_modules, i); 416296465Sdelphij module_free(md); 417296465Sdelphij } 418296465Sdelphij if (sk_CONF_MODULE_num(supported_modules) == 0) { 419296465Sdelphij sk_CONF_MODULE_free(supported_modules); 420296465Sdelphij supported_modules = NULL; 421296465Sdelphij } 422296465Sdelphij} 423109998Smarkm 424109998Smarkm/* unload a single module */ 425109998Smarkmstatic void module_free(CONF_MODULE *md) 426296465Sdelphij{ 427296465Sdelphij if (md->dso) 428296465Sdelphij DSO_free(md->dso); 429296465Sdelphij OPENSSL_free(md->name); 430296465Sdelphij OPENSSL_free(md); 431296465Sdelphij} 432109998Smarkm 433109998Smarkm/* finish and free up all modules instances */ 434109998Smarkm 435109998Smarkmvoid CONF_modules_finish(void) 436296465Sdelphij{ 437296465Sdelphij CONF_IMODULE *imod; 438296465Sdelphij while (sk_CONF_IMODULE_num(initialized_modules) > 0) { 439296465Sdelphij imod = sk_CONF_IMODULE_pop(initialized_modules); 440296465Sdelphij module_finish(imod); 441296465Sdelphij } 442296465Sdelphij sk_CONF_IMODULE_free(initialized_modules); 443296465Sdelphij initialized_modules = NULL; 444296465Sdelphij} 445109998Smarkm 446109998Smarkm/* finish a module instance */ 447109998Smarkm 448109998Smarkmstatic void module_finish(CONF_IMODULE *imod) 449296465Sdelphij{ 450296465Sdelphij if (imod->pmod->finish) 451296465Sdelphij imod->pmod->finish(imod); 452296465Sdelphij imod->pmod->links--; 453296465Sdelphij OPENSSL_free(imod->name); 454296465Sdelphij OPENSSL_free(imod->value); 455296465Sdelphij OPENSSL_free(imod); 456296465Sdelphij} 457109998Smarkm 458109998Smarkm/* Add a static module to OpenSSL */ 459109998Smarkm 460296465Sdelphijint CONF_module_add(const char *name, conf_init_func *ifunc, 461296465Sdelphij conf_finish_func *ffunc) 462296465Sdelphij{ 463296465Sdelphij if (module_add(NULL, name, ifunc, ffunc)) 464296465Sdelphij return 1; 465296465Sdelphij else 466296465Sdelphij return 0; 467296465Sdelphij} 468109998Smarkm 469109998Smarkmvoid CONF_modules_free(void) 470296465Sdelphij{ 471296465Sdelphij CONF_modules_finish(); 472296465Sdelphij CONF_modules_unload(1); 473296465Sdelphij} 474109998Smarkm 475109998Smarkm/* Utility functions */ 476109998Smarkm 477109998Smarkmconst char *CONF_imodule_get_name(const CONF_IMODULE *md) 478296465Sdelphij{ 479296465Sdelphij return md->name; 480296465Sdelphij} 481109998Smarkm 482109998Smarkmconst char *CONF_imodule_get_value(const CONF_IMODULE *md) 483296465Sdelphij{ 484296465Sdelphij return md->value; 485296465Sdelphij} 486109998Smarkm 487109998Smarkmvoid *CONF_imodule_get_usr_data(const CONF_IMODULE *md) 488296465Sdelphij{ 489296465Sdelphij return md->usr_data; 490296465Sdelphij} 491109998Smarkm 492109998Smarkmvoid CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data) 493296465Sdelphij{ 494296465Sdelphij md->usr_data = usr_data; 495296465Sdelphij} 496109998Smarkm 497109998SmarkmCONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md) 498296465Sdelphij{ 499296465Sdelphij return md->pmod; 500296465Sdelphij} 501109998Smarkm 502109998Smarkmunsigned long CONF_imodule_get_flags(const CONF_IMODULE *md) 503296465Sdelphij{ 504296465Sdelphij return md->flags; 505296465Sdelphij} 506109998Smarkm 507109998Smarkmvoid CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags) 508296465Sdelphij{ 509296465Sdelphij md->flags = flags; 510296465Sdelphij} 511109998Smarkm 512109998Smarkmvoid *CONF_module_get_usr_data(CONF_MODULE *pmod) 513296465Sdelphij{ 514296465Sdelphij return pmod->usr_data; 515296465Sdelphij} 516109998Smarkm 517109998Smarkmvoid CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data) 518296465Sdelphij{ 519296465Sdelphij pmod->usr_data = usr_data; 520296465Sdelphij} 521109998Smarkm 522109998Smarkm/* Return default config file name */ 523109998Smarkm 524109998Smarkmchar *CONF_get1_default_config_file(void) 525296465Sdelphij{ 526296465Sdelphij char *file; 527296465Sdelphij int len; 528109998Smarkm 529296465Sdelphij file = getenv("OPENSSL_CONF"); 530296465Sdelphij if (file) 531296465Sdelphij return BUF_strdup(file); 532109998Smarkm 533296465Sdelphij len = strlen(X509_get_default_cert_area()); 534109998Smarkm#ifndef OPENSSL_SYS_VMS 535296465Sdelphij len++; 536109998Smarkm#endif 537296465Sdelphij len += strlen(OPENSSL_CONF); 538109998Smarkm 539296465Sdelphij file = OPENSSL_malloc(len + 1); 540109998Smarkm 541296465Sdelphij if (!file) 542296465Sdelphij return NULL; 543296465Sdelphij BUF_strlcpy(file, X509_get_default_cert_area(), len + 1); 544109998Smarkm#ifndef OPENSSL_SYS_VMS 545296465Sdelphij BUF_strlcat(file, "/", len + 1); 546109998Smarkm#endif 547296465Sdelphij BUF_strlcat(file, OPENSSL_CONF, len + 1); 548109998Smarkm 549296465Sdelphij return file; 550296465Sdelphij} 551109998Smarkm 552296465Sdelphij/* 553296465Sdelphij * This function takes a list separated by 'sep' and calls the callback 554296465Sdelphij * function giving the start and length of each member optionally stripping 555296465Sdelphij * leading and trailing whitespace. This can be used to parse comma separated 556296465Sdelphij * lists for example. 557109998Smarkm */ 558109998Smarkm 559127128Snectarint CONF_parse_list(const char *list_, int sep, int nospc, 560296465Sdelphij int (*list_cb) (const char *elem, int len, void *usr), 561296465Sdelphij void *arg) 562296465Sdelphij{ 563296465Sdelphij int ret; 564296465Sdelphij const char *lstart, *tmpend, *p; 565296465Sdelphij lstart = list_; 566109998Smarkm 567296465Sdelphij for (;;) { 568296465Sdelphij if (nospc) { 569296465Sdelphij while (*lstart && isspace((unsigned char)*lstart)) 570296465Sdelphij lstart++; 571296465Sdelphij } 572296465Sdelphij p = strchr(lstart, sep); 573296465Sdelphij if (p == lstart || !*lstart) 574296465Sdelphij ret = list_cb(NULL, 0, arg); 575296465Sdelphij else { 576296465Sdelphij if (p) 577296465Sdelphij tmpend = p - 1; 578296465Sdelphij else 579296465Sdelphij tmpend = lstart + strlen(lstart) - 1; 580296465Sdelphij if (nospc) { 581296465Sdelphij while (isspace((unsigned char)*tmpend)) 582296465Sdelphij tmpend--; 583296465Sdelphij } 584296465Sdelphij ret = list_cb(lstart, tmpend - lstart + 1, arg); 585296465Sdelphij } 586296465Sdelphij if (ret <= 0) 587296465Sdelphij return ret; 588296465Sdelphij if (p == NULL) 589296465Sdelphij return 1; 590296465Sdelphij lstart = p + 1; 591296465Sdelphij } 592296465Sdelphij} 593