X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Finit.c;h=e9c290c4d90dfa1bac9c51ed24ba0288211986e7;hb=966616b274d24c45b1f3a71ff35ddd502153b4a1;hp=1074bf96bea81fab351001ceb4d5017305eafad0;hpb=8333a03346539c0e4fc4c7c7df723c541fb14d03;p=openldap diff --git a/libraries/libldap/init.c b/libraries/libldap/init.c index 1074bf96be..e9c290c4d9 100644 --- a/libraries/libldap/init.c +++ b/libraries/libldap/init.c @@ -1,23 +1,492 @@ +/* $OpenLDAP$ */ +/* + * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved. + * COPYING RESTRICTIONS APPLY, see COPYRIGHT file + */ #include "portable.h" #include -#include +#include #include #include +#include #include +#include + #include "ldap-int.h" +#include "ldap_defaults.h" + +struct ldapoptions ldap_int_global_options = + { LDAP_UNINITIALIZED, LDAP_DEBUG_NONE }; + +#define ATTR_NONE 0 +#define ATTR_BOOL 1 +#define ATTR_INT 2 +#define ATTR_KV 3 +#define ATTR_STRING 4 +#define ATTR_OPTION 5 + +#define ATTR_SASL 6 +#define ATTR_TLS 7 + +struct ol_keyvalue { + const char * key; + int value; +}; + +static const struct ol_keyvalue deref_kv[] = { + {"never", LDAP_DEREF_NEVER}, + {"searching", LDAP_DEREF_SEARCHING}, + {"finding", LDAP_DEREF_FINDING}, + {"always", LDAP_DEREF_ALWAYS}, + {NULL, 0} +}; + +static const struct ol_attribute { + int useronly; + int type; + const char * name; + const void * data; + size_t offset; +} attrs[] = { + {0, ATTR_KV, "DEREF", deref_kv, /* or &deref_kv[0] */ + offsetof(struct ldapoptions, ldo_deref)}, + {0, ATTR_INT, "SIZELIMIT", NULL, + offsetof(struct ldapoptions, ldo_sizelimit)}, + {0, ATTR_INT, "TIMELIMIT", NULL, + offsetof(struct ldapoptions, ldo_timelimit)}, + {1, ATTR_STRING, "BINDDN", NULL, + offsetof(struct ldapoptions, ldo_defbinddn)}, + {0, ATTR_STRING, "BASE", NULL, + offsetof(struct ldapoptions, ldo_defbase)}, + {0, ATTR_INT, "PORT", NULL, /* deprecated */ + offsetof(struct ldapoptions, ldo_defport)}, + {0, ATTR_OPTION, "HOST", NULL, LDAP_OPT_HOST_NAME}, /* deprecated */ + {0, ATTR_OPTION, "URI", NULL, LDAP_OPT_URI}, /* replaces HOST/PORT */ + {0, ATTR_BOOL, "REFERRALS", NULL, LDAP_BOOL_REFERRALS}, + {0, ATTR_BOOL, "RESTART", NULL, LDAP_BOOL_RESTART}, + +#ifdef HAVE_CYRUS_SASL + {1, ATTR_STRING, "SASL_MECH", NULL, + offsetof(struct ldapoptions, ldo_def_sasl_mech)}, + {1, ATTR_STRING, "SASL_REALM", NULL, + offsetof(struct ldapoptions, ldo_def_sasl_realm)}, + {1, ATTR_STRING, "SASL_AUTHCID", NULL, + offsetof(struct ldapoptions, ldo_def_sasl_authcid)}, + {1, ATTR_STRING, "SASL_AUTHZID", NULL, + offsetof(struct ldapoptions, ldo_def_sasl_authzid)}, + {0, ATTR_SASL, "SASL_SECPROPS", NULL, LDAP_OPT_X_SASL_SECPROPS}, +#endif + +#ifdef HAVE_TLS + {0, ATTR_TLS, "TLS", NULL, LDAP_OPT_X_TLS}, + {1, ATTR_TLS, "TLS_CERT", NULL, LDAP_OPT_X_TLS_CERTFILE}, + {1, ATTR_TLS, "TLS_KEY", NULL, LDAP_OPT_X_TLS_KEYFILE}, + {0, ATTR_TLS, "TLS_CACERT", NULL, LDAP_OPT_X_TLS_CACERTFILE}, + {0, ATTR_TLS, "TLS_CACERTDIR",NULL, LDAP_OPT_X_TLS_CACERTDIR}, + {0, ATTR_TLS, "TLS_REQCERT", NULL, LDAP_OPT_X_TLS_REQUIRE_CERT}, + {0, ATTR_TLS, "TLS_RANDFILE", NULL, LDAP_OPT_X_TLS_RANDOM_FILE}, +#endif + + {0, ATTR_NONE, NULL, NULL, 0} +}; + +#define MAX_LDAP_ATTR_LEN sizeof("TLS_CACERTDIR") +#define MAX_LDAP_ENV_PREFIX_LEN 8 + +static void openldap_ldap_init_w_conf( + const char *file, int userconf ) +{ + char linebuf[128]; + FILE *fp; + int i; + char *cmd, *opt; + char *start, *end; + struct ldapoptions *gopts; + + if ((gopts = LDAP_INT_GLOBAL_OPT()) == NULL) { + return; /* Could not allocate mem for global options */ + } + + if (file == NULL) { + /* no file name */ + return; + } + + Debug(LDAP_DEBUG_TRACE, "ldap_init: trying %s\n", file, 0, 0); + + fp = fopen(file, "r"); + if(fp == NULL) { + /* could not open file */ + return; + } + + Debug(LDAP_DEBUG_TRACE, "ldap_init: using %s\n", file, 0, 0); + + while((start = fgets(linebuf, sizeof(linebuf), fp)) != NULL) { + /* skip lines starting with '#' */ + if(*start == '#') continue; + + /* trim leading white space */ + while((*start != '\0') && isspace((unsigned char) *start)) + start++; + + /* anything left? */ + if(*start == '\0') continue; + + /* trim trailing white space */ + end = &start[strlen(start)-1]; + while(isspace((unsigned char)*end)) end--; + end[1] = '\0'; + + /* anything left? */ + if(*start == '\0') continue; + -struct ldap openldap_ld_globals; + /* parse the command */ + cmd=start; + while((*start != '\0') && !isspace((unsigned char)*start)) { + start++; + } + if(*start == '\0') { + /* command has no argument */ + continue; + } -int openldap_ldap_initialized = 0; + *start++ = '\0'; -void openldap_ldap_initialize( void ) + /* we must have some whitespace to skip */ + while(isspace((unsigned char)*start)) start++; + opt = start; + + for(i=0; attrs[i].type != ATTR_NONE; i++) { + void *p; + + if( !userconf && attrs[i].useronly ) { + continue; + } + + if(strcasecmp(cmd, attrs[i].name) != 0) { + continue; + } + + switch(attrs[i].type) { + case ATTR_BOOL: + if((strcasecmp(opt, "on") == 0) + || (strcasecmp(opt, "yes") == 0) + || (strcasecmp(opt, "true") == 0)) + { + LDAP_BOOL_SET(gopts, attrs[i].offset); + + } else { + LDAP_BOOL_CLR(gopts, attrs[i].offset); + } + + break; + + case ATTR_INT: + p = &((char *) gopts)[attrs[i].offset]; + * (int*) p = atoi(opt); + break; + + case ATTR_KV: { + const struct ol_keyvalue *kv; + + for(kv = attrs[i].data; + kv->key != NULL; + kv++) { + + if(strcasecmp(opt, kv->key) == 0) { + p = &((char *) gopts)[attrs[i].offset]; + * (int*) p = kv->value; + break; + } + } + } break; + + case ATTR_STRING: + p = &((char *) gopts)[attrs[i].offset]; + if (* (char**) p != NULL) LDAP_FREE(* (char**) p); + * (char**) p = LDAP_STRDUP(opt); + break; + case ATTR_OPTION: + ldap_set_option( NULL, attrs[i].offset, opt ); + break; + case ATTR_SASL: +#ifdef HAVE_CYRUS_SASL + ldap_int_sasl_config( gopts, attrs[i].offset, opt ); +#endif + break; + case ATTR_TLS: +#ifdef HAVE_TLS + ldap_int_tls_config( NULL, attrs[i].offset, opt ); +#endif + break; + } + + break; + } + } + + fclose(fp); +} + +static void openldap_ldap_init_w_sysconf(const char *file) { - if ( openldap_ldap_initialized ) { + openldap_ldap_init_w_conf( file, 0 ); +} + +static void openldap_ldap_init_w_userconf(const char *file) +{ + char *home; + char *path = NULL; + + if (file == NULL) { + /* no file name */ return; } - openldap_ldap_initialized = 1; + home = getenv("HOME"); + + if (home != NULL) { + Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is %s\n", + home, 0, 0); + path = LDAP_MALLOC(strlen(home) + strlen(file) + 3); + } else { + Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n", + 0, 0, 0); + } + + if(home != NULL && path != NULL) { + /* we assume UNIX path syntax is used... */ + + /* try ~/file */ + sprintf(path, "%s/%s", home, file); + openldap_ldap_init_w_conf(path, 1); + + /* try ~/.file */ + sprintf(path, "%s/.%s", home, file); + openldap_ldap_init_w_conf(path, 1); + } + + if(path != NULL) { + LDAP_FREE(path); + } + + /* try file */ + openldap_ldap_init_w_conf(file, 1); +} + +static void openldap_ldap_init_w_env( + struct ldapoptions *gopts, + const char *prefix) +{ + char buf[MAX_LDAP_ATTR_LEN+MAX_LDAP_ENV_PREFIX_LEN]; + int len; + int i; + void *p; + char *value; + + if (prefix == NULL) { + prefix = LDAP_ENV_PREFIX; + } + + strncpy(buf, prefix, MAX_LDAP_ENV_PREFIX_LEN); + buf[MAX_LDAP_ENV_PREFIX_LEN] = '\0'; + len = strlen(buf); + + for(i=0; attrs[i].type != ATTR_NONE; i++) { + strcpy(&buf[len], attrs[i].name); + value = getenv(buf); + + if(value == NULL) { + continue; + } + + switch(attrs[i].type) { + case ATTR_BOOL: + if((strcasecmp(value, "on") == 0) + || (strcasecmp(value, "yes") == 0) + || (strcasecmp(value, "true") == 0)) + { + LDAP_BOOL_SET(gopts, attrs[i].offset); + + } else { + LDAP_BOOL_CLR(gopts, attrs[i].offset); + } + break; + + case ATTR_INT: + p = &((char *) gopts)[attrs[i].offset]; + * (int*) p = atoi(value); + break; + + case ATTR_KV: { + const struct ol_keyvalue *kv; + + for(kv = attrs[i].data; + kv->key != NULL; + kv++) { + + if(strcasecmp(value, kv->key) == 0) { + p = &((char *) gopts)[attrs[i].offset]; + * (int*) p = kv->value; + break; + } + } + } break; + + case ATTR_STRING: + p = &((char *) gopts)[attrs[i].offset]; + if (* (char**) p != NULL) LDAP_FREE(* (char**) p); + if (*value == '\0') { + * (char**) p = NULL; + } else { + * (char**) p = LDAP_STRDUP(value); + } + break; + case ATTR_OPTION: + ldap_set_option( NULL, attrs[i].offset, value ); + break; + case ATTR_SASL: +#ifdef HAVE_CYRUS_SASL + ldap_int_sasl_config( gopts, attrs[i].offset, value ); +#endif + break; + case ATTR_TLS: +#ifdef HAVE_TLS + ldap_int_tls_config( NULL, attrs[i].offset, value ); +#endif + break; + } + } +} + +/* + * Initialize the global options structure with default values. + */ +void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl ) +{ + if (dbglvl) + gopts->ldo_debug = *dbglvl; + else + gopts->ldo_debug = 0; + + gopts->ldo_version = LDAP_VERSION2; + gopts->ldo_deref = LDAP_DEREF_NEVER; + gopts->ldo_timelimit = LDAP_NO_LIMIT; + gopts->ldo_sizelimit = LDAP_NO_LIMIT; + + gopts->ldo_tm_api = (struct timeval *)NULL; + gopts->ldo_tm_net = (struct timeval *)NULL; + + /* ldo_defludp is leaked, we should have an at_exit() handler + * to free this and whatever else needs to cleaned up. + */ + ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/"); + gopts->ldo_defport = LDAP_PORT; + + gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT; + gopts->ldo_rebind_proc = NULL; + gopts->ldo_rebind_params = NULL; + + LDAP_BOOL_ZERO(gopts); + + LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS); + +#ifdef HAVE_CYRUS_SASL + gopts->ldo_def_sasl_mech = NULL; + gopts->ldo_def_sasl_realm = NULL; + gopts->ldo_def_sasl_authcid = NULL; + gopts->ldo_def_sasl_authzid = NULL; + + memset( &gopts->ldo_sasl_secprops, + '\0', sizeof(gopts->ldo_sasl_secprops) ); + + gopts->ldo_sasl_secprops.max_ssf = INT_MAX; + gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE; + gopts->ldo_sasl_secprops.security_flags = + SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS; +#endif + + gopts->ldo_valid = LDAP_INITIALIZED; + return; +} + +#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \ + || defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) +char * ldap_int_hostname = NULL; +#endif + +void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl ) +{ + if ( gopts->ldo_valid == LDAP_INITIALIZED ) { + return; + } + +#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \ + || defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) + ldap_int_hostname = ldap_pvt_get_fqdn( ldap_int_hostname ); +#endif + + ldap_int_utils_init(); + + if ( ldap_int_tblsize == 0 ) + ldap_int_ip_init(); + + ldap_int_initialize_global_options(gopts, NULL); + + if( getenv("LDAPNOINIT") != NULL ) { + return; + } + +#ifdef HAVE_CYRUS_SASL + { + /* set authentication identity to current user name */ + char *user = getenv("USER"); + + if( user == NULL ) user = getenv("USERNAME"); + if( user == NULL ) user = getenv("LOGNAME"); + + if( user != NULL ) { + /* this value is leaked, need at_exit() handler */ + gopts->ldo_def_sasl_authcid = LDAP_STRDUP( user ); + } + } +#endif + + openldap_ldap_init_w_sysconf(LDAP_CONF_FILE); + openldap_ldap_init_w_userconf(LDAP_USERRC_FILE); + + { + char *altfile = getenv(LDAP_ENV_PREFIX "CONF"); + + if( altfile != NULL ) { + Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n", + LDAP_ENV_PREFIX "CONF", altfile, 0); + openldap_ldap_init_w_sysconf( altfile ); + } + else + Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n", + LDAP_ENV_PREFIX "CONF", 0, 0); + } + + { + char *altfile = getenv(LDAP_ENV_PREFIX "RC"); + + if( altfile != NULL ) { + Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is %s\n", + LDAP_ENV_PREFIX "RC", altfile, 0); + openldap_ldap_init_w_userconf( altfile ); + } + else + Debug(LDAP_DEBUG_TRACE, "ldap_init: %s env is NULL\n", + LDAP_ENV_PREFIX "RC", 0, 0); + } + + openldap_ldap_init_w_env(gopts, NULL); + + ldap_int_sasl_init(); }