X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Finit.c;h=0057978a05d79ad9147a686997b2b44e72614c72;hb=d9a60db75ea1dbbc06d90d15e6f6969d8c075ee7;hp=164761b6edfa4254a540a7cc4ecc5bb863b8da05;hpb=95eea5acccaffb85ee2ac4ffcf4cd45dbb0fc4a0;p=openldap diff --git a/libraries/libldap/init.c b/libraries/libldap/init.c index 164761b6ed..0057978a05 100644 --- a/libraries/libldap/init.c +++ b/libraries/libldap/init.c @@ -1,36 +1,58 @@ /* $OpenLDAP$ */ -/* - * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved. - * COPYING RESTRICTIONS APPLY, see COPYRIGHT file +/* This work is part of OpenLDAP Software . + * + * Copyright 1998-2011 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * . */ + #include "portable.h" #include #include +#ifdef HAVE_GETEUID +#include +#endif + #include #include #include #include +#ifdef HAVE_LIMITS_H #include +#endif #include "ldap-int.h" #include "ldap_defaults.h" +#include "lutil.h" struct ldapoptions ldap_int_global_options = - { LDAP_UNINITIALIZED, LDAP_DEBUG_NONE }; + { LDAP_UNINITIALIZED, LDAP_DEBUG_NONE LDAP_LDO_MUTEX_NULLARG }; #define ATTR_NONE 0 #define ATTR_BOOL 1 #define ATTR_INT 2 #define ATTR_KV 3 #define ATTR_STRING 4 -#define ATTR_URIS 5 +#define ATTR_OPTION 5 #define ATTR_SASL 6 #define ATTR_TLS 7 +#define ATTR_OPT_TV 8 +#define ATTR_OPT_INT 9 + +#define ATTR_GSSAPI 10 + struct ol_keyvalue { const char * key; int value; @@ -51,6 +73,9 @@ static const struct ol_attribute { const void * data; size_t offset; } attrs[] = { + {0, ATTR_OPT_TV, "TIMEOUT", NULL, LDAP_OPT_TIMEOUT}, + {0, ATTR_OPT_TV, "NETWORK_TIMEOUT", NULL, LDAP_OPT_NETWORK_TIMEOUT}, + {0, ATTR_OPT_INT, "VERSION", NULL, LDAP_OPT_PROTOCOL_VERSION}, {0, ATTR_KV, "DEREF", deref_kv, /* or &deref_kv[0] */ offsetof(struct ldapoptions, ldo_deref)}, {0, ATTR_INT, "SIZELIMIT", NULL, @@ -63,43 +88,62 @@ static const struct ol_attribute { offsetof(struct ldapoptions, ldo_defbase)}, {0, ATTR_INT, "PORT", NULL, /* deprecated */ offsetof(struct ldapoptions, ldo_defport)}, - {0, ATTR_URIS, "HOST", NULL, 1}, /* deprecated */ - {0, ATTR_URIS, "URI", NULL, 0}, /* replaces HOST/URI */ + {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}, +#if 0 + /* This should only be allowed via ldap_set_option(3) */ {0, ATTR_BOOL, "RESTART", NULL, LDAP_BOOL_RESTART}, +#endif #ifdef HAVE_CYRUS_SASL - {1, ATTR_STRING, "SASL_MECH", NULL, + {0, ATTR_STRING, "SASL_MECH", NULL, offsetof(struct ldapoptions, ldo_def_sasl_mech)}, - {1, ATTR_STRING, "SASL_REALM", NULL, + {0, 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}, + {0, ATTR_BOOL, "SASL_NOCANON", NULL, LDAP_BOOL_SASL_NOCANON}, +#endif + +#ifdef HAVE_GSSAPI + {0, ATTR_GSSAPI,"GSSAPI_SIGN", NULL, LDAP_OPT_SIGN}, + {0, ATTR_GSSAPI,"GSSAPI_ENCRYPT", NULL, LDAP_OPT_ENCRYPT}, + {0, ATTR_GSSAPI,"GSSAPI_ALLOW_REMOTE_PRINCIPAL",NULL, LDAP_OPT_X_GSSAPI_ALLOW_REMOTE_PRINCIPAL}, #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}, - {1, ATTR_TLS, "TLS_REQCERT", NULL, LDAP_OPT_X_TLS_REQUIRE_CERT}, - {1, ATTR_TLS, "TLS_RANDFILE", NULL, LDAP_OPT_X_TLS_RANDOM_FILE}, + {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}, + {0, ATTR_TLS, "TLS_CIPHER_SUITE", NULL, LDAP_OPT_X_TLS_CIPHER_SUITE}, + {0, ATTR_TLS, "TLS_PROTOCOL_MIN", NULL, LDAP_OPT_X_TLS_PROTOCOL_MIN}, + +#ifdef HAVE_OPENSSL_CRL + {0, ATTR_TLS, "TLS_CRLCHECK", NULL, LDAP_OPT_X_TLS_CRLCHECK}, +#endif +#ifdef HAVE_GNUTLS + {0, ATTR_TLS, "TLS_CRLFILE", NULL, LDAP_OPT_X_TLS_CRLFILE}, +#endif + #endif {0, ATTR_NONE, NULL, NULL, 0} }; -#define MAX_LDAP_ATTR_LEN sizeof("TLS_CACERTDIR") +#define MAX_LDAP_ATTR_LEN sizeof("GSSAPI_ALLOW_REMOTE_PRINCIPAL") #define MAX_LDAP_ENV_PREFIX_LEN 8 static void openldap_ldap_init_w_conf( const char *file, int userconf ) { - char linebuf[128]; + char linebuf[ AC_LINE_MAX ]; FILE *fp; int i; char *cmd, *opt; @@ -186,10 +230,15 @@ static void openldap_ldap_init_w_conf( break; - case ATTR_INT: + case ATTR_INT: { + char *next; + long l; p = &((char *) gopts)[attrs[i].offset]; - * (int*) p = atoi(opt); - break; + l = strtol( opt, &next, 10 ); + if ( next != opt && next[ 0 ] == '\0' ) { + * (int*) p = l; + } + } break; case ATTR_KV: { const struct ol_keyvalue *kv; @@ -211,23 +260,42 @@ static void openldap_ldap_init_w_conf( if (* (char**) p != NULL) LDAP_FREE(* (char**) p); * (char**) p = LDAP_STRDUP(opt); break; - case ATTR_URIS: - if (attrs[i].offset == 0) { - ldap_set_option( NULL, LDAP_OPT_URI, opt ); - } else { - ldap_set_option( NULL, LDAP_OPT_HOST_NAME, opt ); - } + 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_GSSAPI: +#ifdef HAVE_GSSAPI + ldap_int_gssapi_config( gopts, attrs[i].offset, opt ); #endif break; case ATTR_TLS: #ifdef HAVE_TLS - ldap_int_tls_config( gopts, attrs[i].offset, opt ); + ldap_pvt_tls_config( NULL, attrs[i].offset, opt ); #endif break; + case ATTR_OPT_TV: { + struct timeval tv; + char *next; + tv.tv_usec = 0; + tv.tv_sec = strtol( opt, &next, 10 ); + if ( next != opt && next[ 0 ] == '\0' && tv.tv_sec > 0 ) { + (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv ); + } + } break; + case ATTR_OPT_INT: { + long l; + char *next; + l = strtol( opt, &next, 10 ); + if ( next != opt && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) { + int v = (int)l; + (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v ); + } + } break; } break; @@ -257,7 +325,7 @@ static void openldap_ldap_init_w_userconf(const char *file) 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); + path = LDAP_MALLOC(strlen(home) + strlen(file) + sizeof( LDAP_DIRSEP ".")); } else { Debug(LDAP_DEBUG_TRACE, "ldap_init: HOME env is NULL\n", 0, 0, 0); @@ -267,11 +335,11 @@ static void openldap_ldap_init_w_userconf(const char *file) /* we assume UNIX path syntax is used... */ /* try ~/file */ - sprintf(path, "%s/%s", home, file); + sprintf(path, "%s" LDAP_DIRSEP "%s", home, file); openldap_ldap_init_w_conf(path, 1); /* try ~/.file */ - sprintf(path, "%s/.%s", home, file); + sprintf(path, "%s" LDAP_DIRSEP ".%s", home, file); openldap_ldap_init_w_conf(path, 1); } @@ -351,32 +419,106 @@ static void openldap_ldap_init_w_env( * (char**) p = LDAP_STRDUP(value); } break; - case ATTR_URIS: - if (attrs[i].offset == 0) { - ldap_set_option( NULL, LDAP_OPT_URI, value ); - } else { - ldap_set_option( NULL, LDAP_OPT_HOST_NAME, value ); - } + 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_GSSAPI: +#ifdef HAVE_GSSAPI + ldap_int_gssapi_config( gopts, attrs[i].offset, value ); +#endif + break; case ATTR_TLS: #ifdef HAVE_TLS - ldap_int_tls_config( gopts, attrs[i].offset, value ); + ldap_pvt_tls_config( NULL, attrs[i].offset, value ); #endif break; + case ATTR_OPT_TV: { + struct timeval tv; + char *next; + tv.tv_usec = 0; + tv.tv_sec = strtol( value, &next, 10 ); + if ( next != value && next[ 0 ] == '\0' && tv.tv_sec > 0 ) { + (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&tv ); + } + } break; + case ATTR_OPT_INT: { + long l; + char *next; + l = strtol( value, &next, 10 ); + if ( next != value && next[ 0 ] == '\0' && l > 0 && (long)((int)l) == l ) { + int v = (int)l; + (void)ldap_set_option( NULL, attrs[i].offset, (const void *)&v ); + } + } break; } } } +#if defined(__GNUC__) +/* Declare this function as a destructor so that it will automatically be + * invoked either at program exit (if libldap is a static library) or + * at unload time (if libldap is a dynamic library). + * + * Sorry, don't know how to handle this for non-GCC environments. + */ +static void ldap_int_destroy_global_options(void) + __attribute__ ((destructor)); +#endif + +static void +ldap_int_destroy_global_options(void) +{ + struct ldapoptions *gopts = LDAP_INT_GLOBAL_OPT(); + + if ( gopts == NULL ) + return; + + gopts->ldo_valid = LDAP_UNINITIALIZED; + + if ( gopts->ldo_defludp ) { + ldap_free_urllist( gopts->ldo_defludp ); + gopts->ldo_defludp = NULL; + } +#if defined(HAVE_WINSOCK) || defined(HAVE_WINSOCK2) + WSACleanup( ); +#endif + +#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) + if ( ldap_int_hostname ) { + LDAP_FREE( ldap_int_hostname ); + ldap_int_hostname = NULL; + } +#endif +#ifdef HAVE_CYRUS_SASL + if ( gopts->ldo_def_sasl_authcid ) { + LDAP_FREE( gopts->ldo_def_sasl_authcid ); + gopts->ldo_def_sasl_authcid = NULL; + } +#endif +#ifdef HAVE_TLS + ldap_int_tls_destroy( gopts ); +#endif +} + /* * Initialize the global options structure with default values. */ void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl ) { +#ifdef LDAP_R_COMPILE + LDAP_PVT_MUTEX_FIRSTCREATE(gopts->ldo_mutex); +#endif + LDAP_MUTEX_LOCK( &gopts->ldo_mutex ); + if (gopts->ldo_valid == LDAP_INITIALIZED) { + /* someone else got here first */ + LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex ); + return; + } if (dbglvl) gopts->ldo_debug = *dbglvl; else @@ -387,47 +529,65 @@ void ldap_int_initialize_global_options( struct ldapoptions *gopts, int *dbglvl 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; + gopts->ldo_tm_api.tv_sec = -1; + gopts->ldo_tm_net.tv_sec = -1; - /* ldo_defludp is leaked, we should have an at_exit() handler - * to free this and whatever else needs to cleaned up. + /* ldo_defludp will be freed by the termination handler */ ldap_url_parselist(&gopts->ldo_defludp, "ldap://localhost/"); gopts->ldo_defport = LDAP_PORT; +#if !defined(__GNUC__) && !defined(PIC) + /* Do this only for a static library, and only if we can't + * arrange for it to be executed as a library destructor + */ + atexit(ldap_int_destroy_global_options); +#endif gopts->ldo_refhoplimit = LDAP_DEFAULT_REFHOPLIMIT; - gopts->ldo_rebindproc = NULL; + gopts->ldo_rebind_proc = NULL; + gopts->ldo_rebind_params = NULL; LDAP_BOOL_ZERO(gopts); LDAP_BOOL_SET(gopts, LDAP_BOOL_REFERRALS); +#ifdef LDAP_CONNECTIONLESS + gopts->ldo_peer = NULL; + gopts->ldo_cldapdn = NULL; + gopts->ldo_is_udp = 0; +#endif + #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) ); + memset( &gopts->ldo_sasl_secprops, + '\0', sizeof(gopts->ldo_sasl_secprops) ); gopts->ldo_sasl_secprops.max_ssf = INT_MAX; - gopts->ldo_sasl_secprops.maxbufsize = 65536; - gopts->ldo_sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS; + gopts->ldo_sasl_secprops.maxbufsize = SASL_MAX_BUFF_SIZE; + gopts->ldo_sasl_secprops.security_flags = + SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS; #endif #ifdef HAVE_TLS - gopts->ldo_tls_ctx = NULL; + gopts->ldo_tls_connect_cb = NULL; + gopts->ldo_tls_connect_arg = NULL; + gopts->ldo_tls_require_cert = LDAP_OPT_X_TLS_DEMAND; #endif + gopts->ldo_keepalive_probes = 0; + gopts->ldo_keepalive_interval = 0; + gopts->ldo_keepalive_idle = 0; gopts->ldo_valid = LDAP_INITIALIZED; - + LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex ); return; } -#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \ - || defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) -char * ldap_int_hostname = "localhost"; +#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) +char * ldap_int_hostname = NULL; #endif void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl ) @@ -436,27 +596,59 @@ void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl ) return; } -#if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) \ - || defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) + ldap_int_error_init(); + + ldap_int_utils_init(); + +#ifdef HAVE_WINSOCK2 +{ WORD wVersionRequested; + WSADATA wsaData; + + wVersionRequested = MAKEWORD( 2, 0 ); + if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) { + /* Tell the user that we couldn't find a usable */ + /* WinSock DLL. */ + return; + } + + /* Confirm that the WinSock DLL supports 2.0.*/ + /* Note that if the DLL supports versions greater */ + /* than 2.0 in addition to 2.0, it will still return */ + /* 2.0 in wVersion since that is the version we */ + /* requested. */ + + if ( LOBYTE( wsaData.wVersion ) != 2 || + HIBYTE( wsaData.wVersion ) != 0 ) { - char hostbuf[MAXHOSTNAMELEN+1]; - if( gethostname( hostbuf, MAXHOSTNAMELEN ) == 0 ) { - hostbuf[MAXHOSTNAMELEN] = '\0'; - ldap_int_hostname = hostbuf; - } + /* Tell the user that we couldn't find a usable */ + /* WinSock DLL. */ + WSACleanup( ); + return; } +} /* The WinSock DLL is acceptable. Proceed. */ +#elif defined(HAVE_WINSOCK) +{ WSADATA wsaData; + if ( WSAStartup( 0x0101, &wsaData ) != 0 ) { + return; + } +} #endif - ldap_int_utils_init(); +#if defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL) + { + char *name = ldap_int_hostname; -#ifdef HAVE_TLS - ldap_pvt_tls_init(); -#endif + ldap_int_hostname = ldap_pvt_get_fqdn( name ); - ldap_int_sasl_init(); + if ( name != NULL && name != ldap_int_hostname ) { + LDAP_FREE( name ); + } + } +#endif - if ( ldap_int_tblsize == 0 ) - ldap_int_ip_init(); +#ifndef HAVE_POLL + if ( ldap_int_tblsize == 0 ) ldap_int_ip_init(); +#endif ldap_int_initialize_global_options(gopts, NULL); @@ -473,13 +665,18 @@ void ldap_int_initialize( struct ldapoptions *gopts, int *dbglvl ) 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); + +#ifdef HAVE_GETEUID + if ( geteuid() != getuid() ) + return; +#endif + openldap_ldap_init_w_userconf(LDAP_USERRC_FILE); {