int
ldap_open_internal_connection( LDAP **ldp, ber_socket_t *fdp )
{
int rc;
LDAPConn *c;
LDAPRequest *lr;
LDAP *ld;
rc = ldap_create( &ld );
if( rc != LDAP_SUCCESS ) {
*ldp = NULL;
return( rc );
}
/* Make it appear that a search request, msgid 0, was sent */
lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ));
if( lr == NULL ) {
ldap_unbind_ext( ld, NULL, NULL );
*ldp = NULL;
return( LDAP_NO_MEMORY );
}
memset(lr, 0, sizeof( LDAPRequest ));
lr->lr_msgid = 0;
lr->lr_status = LDAP_REQST_INPROGRESS;
lr->lr_res_errno = LDAP_SUCCESS;
/* no mutex lock needed, we just created this ld here */
ld->ld_requests = lr;
LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
/* Attach the passed socket as the *LDAP's connection */
c = ldap_new_connection( ld, NULL, 1, 0, NULL, 0, 0 );
if( c == NULL ) {
ldap_unbind_ext( ld, NULL, NULL );
*ldp = NULL;
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
return( LDAP_NO_MEMORY );
}
ber_sockbuf_ctrl( c->lconn_sb, LBER_SB_OPT_SET_FD, fdp );
#ifdef LDAP_DEBUG
ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_debug,
LBER_SBIOD_LEVEL_PROVIDER, (void *)"int_" );
#endif
ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_tcp,
LBER_SBIOD_LEVEL_PROVIDER, NULL );
ld->ld_defconn = c;
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
/* Add the connection to the *LDAP's select pool */
ldap_mark_select_read( ld, c->lconn_sb );
ldap_mark_select_write( ld, c->lconn_sb );
/* Make this connection an LDAP V3 protocol connection */
rc = LDAP_VERSION3;
ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &rc );
*ldp = ld;
++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
return( LDAP_SUCCESS );
}
static stkalign_t * ldap_int_thread_get_stack( int *stacknop )
{
int i;
if ( stacks == NULL ) {
stacks = (struct stackinfo *) LDAP_CALLOC( 1, MAX_THREADS *
sizeof(struct stackinfo) );
if( stacks == NULL ) {
Debug( LDAP_DEBUG_ANY, "stacks allocation failed",
0, 0, 0 );
return NULL;
}
}
for ( i = 0; i < MAX_THREADS; i++ ) {
if ( stacks[i].stk_inuse == 0 ) {
break;
}
}
if ( i == MAX_THREADS ) {
Debug( LDAP_DEBUG_ANY,
"no more stacks (max %d) - increase MAX_THREADS for more",
MAX_THREADS, 0, 0 );
return( NULL );
}
if ( stacks[i].stk_stack == NULL ) {
stacks[i].stk_stack = (stkalign_t *) LDAP_MALLOC(
(MAX_STACK / sizeof(stkalign_t) + 1 )
* sizeof(stkalign_t) );
if( stacks[i].stk_stack == NULL ) {
Debug( LDAP_DEBUG_ANY, "stack allocation failed",
0, 0, 0 );
return( NULL );
}
}
*stacknop = i;
stacks[i].stk_inuse = 1;
return( stacks[i].stk_stack + MAX_STACK / sizeof(stkalign_t) );
}
int
ldap_pvt_thread_rmutex_init( ldap_pvt_thread_rmutex_t *rmutex )
{
struct ldap_int_thread_rmutex_s *rm;
assert( rmutex != NULL );
rm = (struct ldap_int_thread_rmutex_s *) LDAP_CALLOC( 1,
sizeof( struct ldap_int_thread_rmutex_s ) );
if ( !rm )
return LDAP_NO_MEMORY;
/* we should check return results */
ldap_pvt_thread_mutex_init( &rm->ltrm_mutex );
ldap_pvt_thread_cond_init( &rm->ltrm_cond );
rm->ltrm_valid = LDAP_PVT_THREAD_RMUTEX_VALID;
*rmutex = rm;
return 0;
}
LDAP *
ldap_dup( LDAP *old )
{
LDAP *ld;
if ( old == NULL ) {
return( NULL );
}
Debug( LDAP_DEBUG_TRACE, "ldap_dup\n", 0, 0, 0 );
if ( (ld = (LDAP *) LDAP_CALLOC( 1, sizeof(LDAP) )) == NULL ) {
return( NULL );
}
LDAP_MUTEX_LOCK( &old->ld_ldcmutex );
ld->ldc = old->ldc;
old->ld_ldcrefcnt++;
LDAP_MUTEX_UNLOCK( &old->ld_ldcmutex );
return ( ld );
}
int
ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rwlock )
{
struct ldap_int_thread_rdwr_s *rw;
assert( rwlock != NULL );
rw = (struct ldap_int_thread_rdwr_s *) LDAP_CALLOC( 1,
sizeof( struct ldap_int_thread_rdwr_s ) );
if ( !rw )
return LDAP_NO_MEMORY;
/* we should check return results */
ldap_pvt_thread_mutex_init( &rw->ltrw_mutex );
ldap_pvt_thread_cond_init( &rw->ltrw_read );
ldap_pvt_thread_cond_init( &rw->ltrw_write );
rw->ltrw_valid = LDAP_PVT_THREAD_RDWR_VALID;
*rwlock = rw;
return 0;
}
/*
* always protected by conn_mutex
* optionally protected by req_mutex and res_mutex
*/
LDAPConn *
ldap_new_connection( LDAP *ld, LDAPURLDesc **srvlist, int use_ldsb,
int connect, LDAPreqinfo *bind, int m_req, int m_res )
{
LDAPConn *lc;
int async = 0;
LDAP_ASSERT_MUTEX_OWNER( &ld->ld_conn_mutex );
Debug( LDAP_DEBUG_TRACE, "ldap_new_connection %d %d %d\n",
use_ldsb, connect, (bind != NULL) );
/*
* make a new LDAP server connection
* XXX open connection synchronously for now
*/
lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ) );
if ( lc == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return( NULL );
}
if ( use_ldsb ) {
assert( ld->ld_sb != NULL );
lc->lconn_sb = ld->ld_sb;
} else {
lc->lconn_sb = ber_sockbuf_alloc();
if ( lc->lconn_sb == NULL ) {
LDAP_FREE( (char *)lc );
ld->ld_errno = LDAP_NO_MEMORY;
return( NULL );
}
}
if ( connect ) {
LDAPURLDesc **srvp, *srv = NULL;
async = LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_CONNECT_ASYNC );
for ( srvp = srvlist; *srvp != NULL; srvp = &(*srvp)->lud_next ) {
int rc;
rc = ldap_int_open_connection( ld, lc, *srvp, async );
if ( rc != -1 ) {
srv = *srvp;
if ( ld->ld_urllist_proc && ( !async || rc != -2 ) ) {
ld->ld_urllist_proc( ld, srvlist, srvp, ld->ld_urllist_params );
}
break;
}
}
if ( srv == NULL ) {
if ( !use_ldsb ) {
ber_sockbuf_free( lc->lconn_sb );
}
LDAP_FREE( (char *)lc );
ld->ld_errno = LDAP_SERVER_DOWN;
return( NULL );
}
lc->lconn_server = ldap_url_dup( srv );
}
lc->lconn_status = async ? LDAP_CONNST_CONNECTING : LDAP_CONNST_CONNECTED;
lc->lconn_next = ld->ld_conns;
ld->ld_conns = lc;
if ( connect ) {
#ifdef HAVE_TLS
if ( lc->lconn_server->lud_exts ) {
int rc, ext = find_tls_ext( lc->lconn_server );
if ( ext ) {
LDAPConn *savedefconn;
savedefconn = ld->ld_defconn;
++lc->lconn_refcnt; /* avoid premature free */
ld->ld_defconn = lc;
LDAP_REQ_UNLOCK_IF(m_req);
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
LDAP_RES_UNLOCK_IF(m_res);
rc = ldap_start_tls_s( ld, NULL, NULL );
LDAP_RES_LOCK_IF(m_res);
LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
LDAP_REQ_LOCK_IF(m_req);
ld->ld_defconn = savedefconn;
--lc->lconn_refcnt;
if ( rc != LDAP_SUCCESS && ext == 2 ) {
ldap_free_connection( ld, lc, 1, 0 );
return NULL;
}
}
}
#endif
}
if ( bind != NULL ) {
int err = 0;
LDAPConn *savedefconn;
/* Set flag to prevent additional referrals
* from being processed on this
* connection until the bind has completed
*/
lc->lconn_rebind_inprogress = 1;
/* V3 rebind function */
if ( ld->ld_rebind_proc != NULL) {
LDAPURLDesc *srvfunc;
srvfunc = ldap_url_dup( *srvlist );
if ( srvfunc == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
err = -1;
} else {
savedefconn = ld->ld_defconn;
++lc->lconn_refcnt; /* avoid premature free */
ld->ld_defconn = lc;
Debug( LDAP_DEBUG_TRACE, "Call application rebind_proc\n", 0, 0, 0);
LDAP_REQ_UNLOCK_IF(m_req);
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
LDAP_RES_UNLOCK_IF(m_res);
err = (*ld->ld_rebind_proc)( ld,
bind->ri_url, bind->ri_request, bind->ri_msgid,
ld->ld_rebind_params );
LDAP_RES_LOCK_IF(m_res);
LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
LDAP_REQ_LOCK_IF(m_req);
ld->ld_defconn = savedefconn;
--lc->lconn_refcnt;
if ( err != 0 ) {
err = -1;
ldap_free_connection( ld, lc, 1, 0 );
lc = NULL;
}
ldap_free_urldesc( srvfunc );
}
} else {
int msgid, rc;
struct berval passwd = BER_BVNULL;
savedefconn = ld->ld_defconn;
++lc->lconn_refcnt; /* avoid premature free */
ld->ld_defconn = lc;
Debug( LDAP_DEBUG_TRACE,
"anonymous rebind via ldap_sasl_bind(\"\")\n",
0, 0, 0);
LDAP_REQ_UNLOCK_IF(m_req);
LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
LDAP_RES_UNLOCK_IF(m_res);
rc = ldap_sasl_bind( ld, "", LDAP_SASL_SIMPLE, &passwd,
NULL, NULL, &msgid );
if ( rc != LDAP_SUCCESS ) {
err = -1;
} else {
for ( err = 1; err > 0; ) {
struct timeval tv = { 0, 100000 };
LDAPMessage *res = NULL;
switch ( ldap_result( ld, msgid, LDAP_MSG_ALL, &tv, &res ) ) {
case -1:
err = -1;
break;
case 0:
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_yield();
#endif
break;
case LDAP_RES_BIND:
rc = ldap_parse_result( ld, res, &err, NULL, NULL, NULL, NULL, 1 );
if ( rc != LDAP_SUCCESS ) {
err = -1;
} else if ( err != LDAP_SUCCESS ) {
err = -1;
}
/* else err == LDAP_SUCCESS == 0 */
break;
default:
Debug( LDAP_DEBUG_TRACE,
"ldap_new_connection %p: "
"unexpected response %d "
"from BIND request id=%d\n",
(void *) ld, ldap_msgtype( res ), msgid );
err = -1;
break;
}
}
}
LDAP_RES_LOCK_IF(m_res);
LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
LDAP_REQ_LOCK_IF(m_req);
ld->ld_defconn = savedefconn;
--lc->lconn_refcnt;
if ( err != 0 ) {
ldap_free_connection( ld, lc, 1, 0 );
lc = NULL;
}
}
if ( lc != NULL )
lc->lconn_rebind_inprogress = 0;
}
return( lc );
}
int
ldap_send_server_request(
LDAP *ld,
BerElement *ber,
ber_int_t msgid,
LDAPRequest *parentreq,
LDAPURLDesc **srvlist,
LDAPConn *lc,
LDAPreqinfo *bind,
int m_noconn,
int m_res )
{
LDAPRequest *lr;
int incparent, rc;
LDAP_ASSERT_MUTEX_OWNER( &ld->ld_req_mutex );
Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
incparent = 0;
ld->ld_errno = LDAP_SUCCESS; /* optimistic */
LDAP_CONN_LOCK_IF(m_noconn);
if ( lc == NULL ) {
if ( srvlist == NULL ) {
lc = ld->ld_defconn;
} else {
lc = find_connection( ld, *srvlist, 1 );
if ( lc == NULL ) {
if ( (bind != NULL) && (parentreq != NULL) ) {
/* Remember the bind in the parent */
incparent = 1;
++parentreq->lr_outrefcnt;
}
lc = ldap_new_connection( ld, srvlist, 0,
1, bind, 1, m_res );
}
}
}
/* async connect... */
if ( lc != NULL && lc->lconn_status == LDAP_CONNST_CONNECTING ) {
ber_socket_t sd = AC_SOCKET_ERROR;
struct timeval tv = { 0 };
ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_GET_FD, &sd );
/* poll ... */
switch ( ldap_int_poll( ld, sd, &tv, 1 ) ) {
case 0:
/* go on! */
lc->lconn_status = LDAP_CONNST_CONNECTED;
break;
case -2:
/* async only occurs if a network timeout is set */
/* honor network timeout */
LDAP_MUTEX_LOCK( &ld->ld_options.ldo_mutex );
if ( time( NULL ) - lc->lconn_created <= ld->ld_options.ldo_tm_net.tv_sec )
{
/* caller will have to call again */
ld->ld_errno = LDAP_X_CONNECTING;
}
LDAP_MUTEX_UNLOCK( &ld->ld_options.ldo_mutex );
/* fallthru */
default:
/* error */
break;
}
}
if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
if ( ld->ld_errno == LDAP_SUCCESS ) {
ld->ld_errno = LDAP_SERVER_DOWN;
}
ber_free( ber, 1 );
if ( incparent ) {
/* Forget about the bind */
--parentreq->lr_outrefcnt;
}
LDAP_CONN_UNLOCK_IF(m_noconn);
return( -1 );
}
use_connection( ld, lc );
#ifdef LDAP_CONNECTIONLESS
if ( LDAP_IS_UDP( ld )) {
BerElement tmpber = *ber;
ber_rewind( &tmpber );
LDAP_MUTEX_LOCK( &ld->ld_options.ldo_mutex );
rc = ber_write( &tmpber, ld->ld_options.ldo_peer,
sizeof( struct sockaddr_storage ), 0 );
LDAP_MUTEX_UNLOCK( &ld->ld_options.ldo_mutex );
if ( rc == -1 ) {
ld->ld_errno = LDAP_ENCODING_ERROR;
LDAP_CONN_UNLOCK_IF(m_noconn);
return rc;
}
}
#endif
/* If we still have an incomplete write, try to finish it before
* dealing with the new request. If we don't finish here, return
* LDAP_BUSY and let the caller retry later. We only allow a single
* request to be in WRITING state.
*/
rc = 0;
if ( ld->ld_requests &&
ld->ld_requests->lr_status == LDAP_REQST_WRITING &&
ldap_int_flush_request( ld, ld->ld_requests ) < 0 )
{
rc = -1;
}
if ( rc ) {
LDAP_CONN_UNLOCK_IF(m_noconn);
return rc;
}
lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ) );
if ( lr == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
ldap_free_connection( ld, lc, 0, 0 );
ber_free( ber, 1 );
if ( incparent ) {
/* Forget about the bind */
--parentreq->lr_outrefcnt;
}
LDAP_CONN_UNLOCK_IF(m_noconn);
return( -1 );
}
lr->lr_msgid = msgid;
lr->lr_status = LDAP_REQST_INPROGRESS;
lr->lr_res_errno = LDAP_SUCCESS; /* optimistic */
lr->lr_ber = ber;
lr->lr_conn = lc;
if ( parentreq != NULL ) { /* sub-request */
if ( !incparent ) {
/* Increment if we didn't do it before the bind */
++parentreq->lr_outrefcnt;
}
lr->lr_origid = parentreq->lr_origid;
lr->lr_parentcnt = ++parentreq->lr_parentcnt;
lr->lr_parent = parentreq;
lr->lr_refnext = parentreq->lr_child;
parentreq->lr_child = lr;
} else { /* original request */
lr->lr_origid = lr->lr_msgid;
}
/* Extract requestDN for future reference */
#ifdef LDAP_CONNECTIONLESS
if ( !LDAP_IS_UDP(ld) )
#endif
{
BerElement tmpber = *ber;
ber_int_t bint;
ber_tag_t tag, rtag;
ber_reset( &tmpber, 1 );
rtag = ber_scanf( &tmpber, "{it", /*}*/ &bint, &tag );
switch ( tag ) {
case LDAP_REQ_BIND:
rtag = ber_scanf( &tmpber, "{i" /*}*/, &bint );
break;
case LDAP_REQ_DELETE:
break;
default:
rtag = ber_scanf( &tmpber, "{" /*}*/ );
case LDAP_REQ_ABANDON:
break;
}
if ( tag != LDAP_REQ_ABANDON ) {
ber_skip_tag( &tmpber, &lr->lr_dn.bv_len );
lr->lr_dn.bv_val = tmpber.ber_ptr;
}
}
lr->lr_prev = NULL;
lr->lr_next = ld->ld_requests;
if ( lr->lr_next != NULL ) {
lr->lr_next->lr_prev = lr;
}
ld->ld_requests = lr;
ld->ld_errno = LDAP_SUCCESS;
if ( ldap_int_flush_request( ld, lr ) == -1 ) {
msgid = -1;
}
LDAP_CONN_UNLOCK_IF(m_noconn);
return( msgid );
}
int
ldap_create( LDAP **ldp )
{
LDAP *ld;
struct ldapoptions *gopts;
*ldp = NULL;
/* Get pointer to global option structure */
if ( (gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
return LDAP_NO_MEMORY;
}
/* Initialize the global options, if not already done. */
if( gopts->ldo_valid != LDAP_INITIALIZED ) {
ldap_int_initialize(gopts, NULL);
if ( gopts->ldo_valid != LDAP_INITIALIZED )
return LDAP_LOCAL_ERROR;
}
Debug( LDAP_DEBUG_TRACE, "ldap_create\n", 0, 0, 0 );
if ( (ld = (LDAP *) LDAP_CALLOC( 1, sizeof(LDAP) )) == NULL ) {
return( LDAP_NO_MEMORY );
}
/* copy the global options */
AC_MEMCPY(&ld->ld_options, gopts, sizeof(ld->ld_options));
ld->ld_valid = LDAP_VALID_SESSION;
/* but not pointers to malloc'ed items */
ld->ld_options.ldo_sctrls = NULL;
ld->ld_options.ldo_cctrls = NULL;
ld->ld_options.ldo_defludp = NULL;
#ifdef HAVE_CYRUS_SASL
ld->ld_options.ldo_def_sasl_mech = gopts->ldo_def_sasl_mech
? LDAP_STRDUP( gopts->ldo_def_sasl_mech ) : NULL;
ld->ld_options.ldo_def_sasl_realm = gopts->ldo_def_sasl_realm
? LDAP_STRDUP( gopts->ldo_def_sasl_realm ) : NULL;
ld->ld_options.ldo_def_sasl_authcid = gopts->ldo_def_sasl_authcid
? LDAP_STRDUP( gopts->ldo_def_sasl_authcid ) : NULL;
ld->ld_options.ldo_def_sasl_authzid = gopts->ldo_def_sasl_authzid
? LDAP_STRDUP( gopts->ldo_def_sasl_authzid ) : NULL;
#endif
#ifdef HAVE_TLS
/* We explicitly inherit the SSL_CTX, don't need the names/paths. Leave
* them empty to allow new SSL_CTX's to be created from scratch.
*/
memset( &ld->ld_options.ldo_tls_info, 0,
sizeof( ld->ld_options.ldo_tls_info ));
ld->ld_options.ldo_tls_ctx = NULL;
#endif
if ( gopts->ldo_defludp ) {
ld->ld_options.ldo_defludp = ldap_url_duplist(gopts->ldo_defludp);
if ( ld->ld_options.ldo_defludp == NULL ) goto nomem;
}
if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) goto nomem;
ld->ld_lberoptions = LBER_USE_DER;
ld->ld_sb = ber_sockbuf_alloc( );
if ( ld->ld_sb == NULL ) goto nomem;
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_init( &ld->ld_req_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_res_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_conn_mutex );
#endif
*ldp = ld;
return LDAP_SUCCESS;
nomem:
ldap_free_select_info( ld->ld_selectinfo );
ldap_free_urllist( ld->ld_options.ldo_defludp );
#ifdef HAVE_CYRUS_SASL
LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
#endif
LDAP_FREE( (char *)ld );
return LDAP_NO_MEMORY;
}
void *
ldap_memcalloc( ber_len_t n, ber_len_t s )
{
return LDAP_CALLOC( n, s );
}
int ldap_pvt_get_controls(
BerElement *ber,
LDAPControl ***ctrls )
{
int nctrls;
ber_tag_t tag;
ber_len_t len;
char *opaque;
assert( ber != NULL );
if( ctrls == NULL ) {
return LDAP_SUCCESS;
}
*ctrls = NULL;
len = ber_pvt_ber_remaining( ber );
if( len == 0) {
/* no controls */
return LDAP_SUCCESS;
}
if(( tag = ber_peek_tag( ber, &len )) != LDAP_TAG_CONTROLS ) {
if( tag == LBER_ERROR ) {
/* decoding error */
return LDAP_DECODING_ERROR;
}
/* ignore unexpected input */
return LDAP_SUCCESS;
}
/* set through each element */
nctrls = 0;
*ctrls = LDAP_MALLOC( 1 * sizeof(LDAPControl *) );
if( *ctrls == NULL ) {
return LDAP_NO_MEMORY;
}
*ctrls[nctrls] = NULL;
for( tag = ber_first_element( ber, &len, &opaque );
tag != LBER_ERROR;
tag = ber_next_element( ber, &len, opaque ) )
{
LDAPControl *tctrl;
LDAPControl **tctrls;
tctrl = LDAP_CALLOC( 1, sizeof(LDAPControl) );
/* allocate pointer space for current controls (nctrls)
* + this control + extra NULL
*/
tctrls = (tctrl == NULL) ? NULL :
LDAP_REALLOC(*ctrls, (nctrls+2) * sizeof(LDAPControl *));
if( tctrls == NULL ) {
/* one of the above allocation failed */
if( tctrl != NULL ) {
LDAP_FREE( tctrl );
}
ldap_controls_free(*ctrls);
*ctrls = NULL;
return LDAP_NO_MEMORY;
}
tctrls[nctrls++] = tctrl;
tctrls[nctrls] = NULL;
tag = ber_scanf( ber, "{a" /*}*/, &tctrl->ldctl_oid );
if( tag == LBER_ERROR ) {
*ctrls = NULL;
ldap_controls_free( tctrls );
return LDAP_DECODING_ERROR;
}
tag = ber_peek_tag( ber, &len );
if( tag == LBER_BOOLEAN ) {
ber_int_t crit;
tag = ber_scanf( ber, "b", &crit );
tctrl->ldctl_iscritical = crit ? (char) 0 : (char) ~0;
tag = ber_peek_tag( ber, &len );
}
if( tag == LBER_OCTETSTRING ) {
tag = ber_scanf( ber, "o", &tctrl->ldctl_value );
} else {
BER_BVZERO( &tctrl->ldctl_value );
}
*ctrls = tctrls;
}
return LDAP_SUCCESS;
}
int ldap_parse_verify_credentials(
LDAP *ld,
LDAPMessage *res,
int * code,
char ** diagmsg,
struct berval **cookie,
struct berval **screds,
LDAPControl ***ctrls)
{
int rc;
char *retoid = NULL;
struct berval *retdata = NULL;
assert(ld != NULL);
assert(LDAP_VALID(ld));
assert(res != NULL);
assert(code != NULL);
assert(diagmsg != NULL);
rc = ldap_parse_extended_result(ld, res, &retoid, &retdata, 0);
if( rc != LDAP_SUCCESS ) {
ldap_perror(ld, "ldap_parse_verify_credentials");
return rc;
}
if (retdata) {
ber_tag_t tag;
ber_len_t len;
ber_int_t i;
BerElement * ber = ber_init(retdata);
struct berval diagmsg_bv = BER_BVNULL;
if (!ber) {
rc = ld->ld_errno = LDAP_NO_MEMORY;
goto done;
}
ber_scanf(ber, "{im" /*"}"*/, &i, &diagmsg_bv);
if ( diagmsg != NULL ) {
*diagmsg = LDAP_MALLOC( diagmsg_bv.bv_len + 1 );
AC_MEMCPY( *diagmsg, diagmsg_bv.bv_val, diagmsg_bv.bv_len );
(*diagmsg)[diagmsg_bv.bv_len] = '\0';
}
*code = i;
tag = ber_peek_tag(ber, &len);
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_COOKIE) {
ber_scanf(ber, "O", cookie);
tag = ber_peek_tag(ber, &len);
}
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_SCREDS) {
ber_scanf(ber, "O", screds);
tag = ber_peek_tag(ber, &len);
}
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_CONTROLS) {
int nctrls = 0;
char * opaque;
*ctrls = LDAP_MALLOC(1 * sizeof(LDAPControl *));
if (!*ctrls) {
rc = LDAP_NO_MEMORY;
goto done;
}
*ctrls[nctrls] = NULL;
for(tag = ber_first_element(ber, &len, &opaque);
tag != LBER_ERROR;
tag = ber_next_element(ber, &len, opaque))
{
LDAPControl *tctrl;
LDAPControl **tctrls;
tctrl = LDAP_CALLOC(1, sizeof(LDAPControl));
/* allocate pointer space for current controls (nctrls)
* + this control + extra NULL
*/
tctrls = !tctrl ? NULL : LDAP_REALLOC(*ctrls, (nctrls+2) * sizeof(LDAPControl *));
if (!tctrls) {
/* allocation failure */
if (tctrl) LDAP_FREE(tctrl);
ldap_controls_free(*ctrls);
*ctrls = NULL;
rc = LDAP_NO_MEMORY;
goto done;
}
tctrls[nctrls++] = tctrl;
tctrls[nctrls] = NULL;
tag = ber_scanf(ber, "{a" /*"}"*/, &tctrl->ldctl_oid);
if (tag == LBER_ERROR) {
*ctrls = NULL;
ldap_controls_free(tctrls);
rc = LDAP_DECODING_ERROR;
goto done;
}
tag = ber_peek_tag(ber, &len);
if (tag == LBER_BOOLEAN) {
ber_int_t crit;
tag = ber_scanf(ber, "b", &crit);
tctrl->ldctl_iscritical = crit ? (char) 0 : (char) ~0;
tag = ber_peek_tag(ber, &len);
}
if (tag == LBER_OCTETSTRING) {
tag = ber_scanf( ber, "o", &tctrl->ldctl_value );
} else {
BER_BVZERO( &tctrl->ldctl_value );
}
*ctrls = tctrls;
}
}
ber_free(ber, 1);
}
done:
ber_bvfree(retdata);
ber_memfree(retoid);
return rc;
}
static ber_tag_t
try_read1msg(
LDAP *ld,
ber_int_t msgid,
int all,
LDAPConn **lcp,
LDAPMessage **result )
{
BerElement *ber;
LDAPMessage *newmsg, *l, *prev;
ber_int_t id;
int idx;
ber_tag_t tag;
ber_len_t len;
int foundit = 0;
LDAPRequest *lr, *tmplr, dummy_lr = { 0 };
LDAPConn *lc;
BerElement tmpber;
int rc, refer_cnt, hadref, simple_request;
ber_int_t lderr;
#ifdef LDAP_CONNECTIONLESS
LDAPMessage *tmp = NULL, *chain_head = NULL;
int moremsgs = 0, isv2 = 0;
#endif
assert( ld != NULL );
assert( lcp != NULL );
assert( *lcp != NULL );
#ifdef LDAP_R_COMPILE
LDAP_PVT_THREAD_ASSERT_MUTEX_OWNER( &ld->ld_res_mutex );
#endif
Debug( LDAP_DEBUG_TRACE, "read1msg: ld %p msgid %d all %d\n",
(void *)ld, msgid, all );
lc = *lcp;
retry:
if ( lc->lconn_ber == NULL ) {
lc->lconn_ber = ldap_alloc_ber_with_options( ld );
if ( lc->lconn_ber == NULL ) {
return -1;
}
}
ber = lc->lconn_ber;
assert( LBER_VALID (ber) );
/* get the next message */
sock_errset(0);
#ifdef LDAP_CONNECTIONLESS
if ( LDAP_IS_UDP(ld) ) {
struct sockaddr from;
ber_int_sb_read( lc->lconn_sb, &from, sizeof(struct sockaddr) );
if ( ld->ld_options.ldo_version == LDAP_VERSION2 ) isv2 = 1;
}
nextresp3:
#endif
tag = ber_get_next( lc->lconn_sb, &len, ber );
switch ( tag ) {
case LDAP_TAG_MESSAGE:
/*
* We read a complete message.
* The connection should no longer need this ber.
*/
lc->lconn_ber = NULL;
break;
case LBER_DEFAULT:
#ifdef LDAP_DEBUG
Debug( LDAP_DEBUG_CONNS,
"ber_get_next failed.\n", 0, 0, 0 );
#endif
#ifdef EWOULDBLOCK
if ( sock_errno() == EWOULDBLOCK ) return LDAP_MSG_X_KEEP_LOOKING;
#endif
#ifdef EAGAIN
if ( sock_errno() == EAGAIN ) return LDAP_MSG_X_KEEP_LOOKING;
#endif
ld->ld_errno = LDAP_SERVER_DOWN;
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
#endif
ldap_free_connection( ld, lc, 1, 0 );
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
#endif
lc = *lcp = NULL;
return -1;
default:
ld->ld_errno = LDAP_LOCAL_ERROR;
return -1;
}
/* message id */
if ( ber_get_int( ber, &id ) == LBER_ERROR ) {
ber_free( ber, 1 );
ld->ld_errno = LDAP_DECODING_ERROR;
return( -1 );
}
/* id == 0 iff unsolicited notification message (RFC 4511) */
/* if it's been abandoned, toss it */
if ( id > 0 ) {
if ( ldap_abandoned( ld, id, &idx ) ) {
/* the message type */
tag = ber_peek_tag( ber, &len );
switch ( tag ) {
case LDAP_RES_SEARCH_ENTRY:
case LDAP_RES_SEARCH_REFERENCE:
case LDAP_RES_INTERMEDIATE:
case LBER_ERROR:
break;
default:
/* there's no need to keep the id
* in the abandoned list any longer */
ldap_mark_abandoned( ld, id, idx );
break;
}
Debug( LDAP_DEBUG_ANY,
"abandoned/discarded ld %p msgid %ld message type %s\n",
(void *)ld, (long)id, ldap_int_msgtype2str( tag ) );
retry_ber:
ber_free( ber, 1 );
if ( ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
goto retry;
}
return( LDAP_MSG_X_KEEP_LOOKING ); /* continue looking */
}
lr = ldap_find_request_by_msgid( ld, id );
if ( lr == NULL ) {
const char *msg = "unknown";
/* the message type */
tag = ber_peek_tag( ber, &len );
switch ( tag ) {
case LBER_ERROR:
break;
default:
msg = ldap_int_msgtype2str( tag );
break;
}
Debug( LDAP_DEBUG_ANY,
"no request for response on ld %p msgid %ld message type %s (tossing)\n",
(void *)ld, (long)id, msg );
goto retry_ber;
}
#ifdef LDAP_CONNECTIONLESS
if ( LDAP_IS_UDP(ld) && isv2 ) {
ber_scanf(ber, "x{");
}
nextresp2:
#endif
}
/* the message type */
tag = ber_peek_tag( ber, &len );
if ( tag == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( -1 );
}
Debug( LDAP_DEBUG_TRACE,
"read1msg: ld %p msgid %ld message type %s\n",
(void *)ld, (long)lr->lr_msgid, ldap_int_msgtype2str( tag ) );
if ( id == 0 ) {
/* unsolicited notification message (RFC 4511) */
if ( tag != LDAP_RES_EXTENDED ) {
/* toss it */
goto retry_ber;
/* strictly speaking, it's an error; from RFC 4511:
4.4. Unsolicited Notification
An unsolicited notification is an LDAPMessage sent from the server to
the client that is not in response to any LDAPMessage received by the
server. It is used to signal an extraordinary condition in the
server or in the LDAP session between the client and the server. The
notification is of an advisory nature, and the server will not expect
any response to be returned from the client.
The unsolicited notification is structured as an LDAPMessage in which
the messageID is zero and protocolOp is set to the extendedResp
choice using the ExtendedResponse type (See Section 4.12). The
responseName field of the ExtendedResponse always contains an LDAPOID
that is unique for this notification.
* however, since unsolicited responses
* are of advisory nature, better
* toss it, right now
*/
#if 0
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( -1 );
#endif
}
lr = &dummy_lr;
}
id = lr->lr_origid;
refer_cnt = 0;
hadref = simple_request = 0;
rc = LDAP_MSG_X_KEEP_LOOKING; /* default is to keep looking (no response found) */
lr->lr_res_msgtype = tag;
/*
* Check for V3 search reference
*/
if ( tag == LDAP_RES_SEARCH_REFERENCE ) {
if ( ld->ld_version > LDAP_VERSION2 ) {
/* This is a V3 search reference */
if ( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ||
lr->lr_parent != NULL )
{
char **refs = NULL;
tmpber = *ber;
/* Get the referral list */
if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) {
rc = LDAP_DECODING_ERROR;
} else {
/* Note: refs array is freed by ldap_chase_v3referrals */
refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
1, &lr->lr_res_error, &hadref );
if ( refer_cnt > 0 ) {
/* successfully chased reference */
/* If haven't got end search, set chasing referrals */
if ( lr->lr_status != LDAP_REQST_COMPLETED ) {
lr->lr_status = LDAP_REQST_CHASINGREFS;
Debug( LDAP_DEBUG_TRACE,
"read1msg: search ref chased, "
"mark request chasing refs, "
"id = %d\n",
lr->lr_msgid, 0, 0 );
}
}
}
}
}
} else if ( tag != LDAP_RES_SEARCH_ENTRY && tag != LDAP_RES_INTERMEDIATE ) {
/* All results that just return a status, i.e. don't return data
* go through the following code. This code also chases V2 referrals
* and checks if all referrals have been chased.
*/
char *lr_res_error = NULL;
tmpber = *ber; /* struct copy */
if ( ber_scanf( &tmpber, "{eAA", &lderr,
&lr->lr_res_matched, &lr_res_error )
!= LBER_ERROR )
{
if ( lr_res_error != NULL ) {
if ( lr->lr_res_error != NULL ) {
(void)ldap_append_referral( ld, &lr->lr_res_error, lr_res_error );
LDAP_FREE( (char *)lr_res_error );
} else {
lr->lr_res_error = lr_res_error;
}
lr_res_error = NULL;
}
/* Do we need to check for referrals? */
if ( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ||
lr->lr_parent != NULL )
{
char **refs = NULL;
ber_len_t len;
/* Check if V3 referral */
if ( ber_peek_tag( &tmpber, &len ) == LDAP_TAG_REFERRAL ) {
if ( ld->ld_version > LDAP_VERSION2 ) {
/* Get the referral list */
if ( ber_scanf( &tmpber, "{v}", &refs) == LBER_ERROR) {
rc = LDAP_DECODING_ERROR;
lr->lr_status = LDAP_REQST_COMPLETED;
Debug( LDAP_DEBUG_TRACE,
"read1msg: referral decode error, "
"mark request completed, ld %p msgid %d\n",
(void *)ld, lr->lr_msgid, 0 );
} else {
/* Chase the referral
* refs array is freed by ldap_chase_v3referrals
*/
refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
0, &lr->lr_res_error, &hadref );
lr->lr_status = LDAP_REQST_COMPLETED;
Debug( LDAP_DEBUG_TRACE,
"read1msg: referral %s chased, "
"mark request completed, ld %p msgid %d\n",
refer_cnt > 0 ? "" : "not",
(void *)ld, lr->lr_msgid);
if ( refer_cnt < 0 ) {
refer_cnt = 0;
}
}
}
} else {
switch ( lderr ) {
case LDAP_SUCCESS:
case LDAP_COMPARE_TRUE:
case LDAP_COMPARE_FALSE:
break;
default:
if ( lr->lr_res_error == NULL ) {
break;
}
/* pedantic, should never happen */
if ( lr->lr_res_error[ 0 ] == '\0' ) {
LDAP_FREE( lr->lr_res_error );
lr->lr_res_error = NULL;
break;
}
/* V2 referrals are in error string */
refer_cnt = ldap_chase_referrals( ld, lr,
&lr->lr_res_error, -1, &hadref );
lr->lr_status = LDAP_REQST_COMPLETED;
Debug( LDAP_DEBUG_TRACE,
"read1msg: V2 referral chased, "
"mark request completed, id = %d\n",
lr->lr_msgid, 0, 0 );
break;
}
}
}
/* save errno, message, and matched string */
if ( !hadref || lr->lr_res_error == NULL ) {
lr->lr_res_errno =
lderr == LDAP_PARTIAL_RESULTS
? LDAP_SUCCESS : lderr;
} else if ( ld->ld_errno != LDAP_SUCCESS ) {
lr->lr_res_errno = ld->ld_errno;
} else {
lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
}
}
/* in any case, don't leave any lr_res_error 'round */
if ( lr_res_error ) {
LDAP_FREE( lr_res_error );
}
Debug( LDAP_DEBUG_TRACE,
"read1msg: ld %p %d new referrals\n",
(void *)ld, refer_cnt, 0 );
if ( refer_cnt != 0 ) { /* chasing referrals */
ber_free( ber, 1 );
ber = NULL;
if ( refer_cnt < 0 ) {
ldap_return_request( ld, lr, 0 );
return( -1 ); /* fatal error */
}
lr->lr_res_errno = LDAP_SUCCESS; /* sucessfully chased referral */
} else {
if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
/* request without any referrals */
simple_request = ( hadref ? 0 : 1 );
} else {
/* request with referrals or child request */
ber_free( ber, 1 );
ber = NULL;
}
lr->lr_status = LDAP_REQST_COMPLETED; /* declare this request done */
Debug( LDAP_DEBUG_TRACE,
"read1msg: mark request completed, ld %p msgid %d\n",
(void *)ld, lr->lr_msgid, 0);
while ( lr->lr_parent != NULL ) {
merge_error_info( ld, lr->lr_parent, lr );
lr = lr->lr_parent;
if ( --lr->lr_outrefcnt > 0 ) {
break; /* not completely done yet */
}
}
/* Check if all requests are finished, lr is now parent */
tmplr = lr;
if ( tmplr->lr_status == LDAP_REQST_COMPLETED ) {
for ( tmplr = lr->lr_child;
tmplr != NULL;
tmplr = tmplr->lr_refnext )
{
if ( tmplr->lr_status != LDAP_REQST_COMPLETED ) break;
}
}
/* This is the parent request if the request has referrals */
if ( lr->lr_outrefcnt <= 0 &&
lr->lr_parent == NULL &&
tmplr == NULL )
{
id = lr->lr_msgid;
tag = lr->lr_res_msgtype;
Debug( LDAP_DEBUG_TRACE, "request done: ld %p msgid %ld\n",
(void *)ld, (long) id, 0 );
Debug( LDAP_DEBUG_TRACE,
"res_errno: %d, res_error: <%s>, "
"res_matched: <%s>\n",
lr->lr_res_errno,
lr->lr_res_error ? lr->lr_res_error : "",
lr->lr_res_matched ? lr->lr_res_matched : "" );
if ( !simple_request ) {
ber_free( ber, 1 );
ber = NULL;
if ( build_result_ber( ld, &ber, lr )
== LBER_ERROR )
{
rc = -1; /* fatal error */
}
}
if ( lr != &dummy_lr ) {
ldap_return_request( ld, lr, 1 );
}
lr = NULL;
}
/*
* RF 4511 unsolicited (id == 0) responses
* shouldn't necessarily end the connection
*/
if ( lc != NULL && id != 0 ) {
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
#endif
ldap_free_connection( ld, lc, 0, 1 );
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
#endif
lc = *lcp = NULL;
}
}
}
if ( lr != NULL ) {
if ( lr != &dummy_lr ) {
ldap_return_request( ld, lr, 0 );
}
lr = NULL;
}
if ( ber == NULL ) {
return( rc );
}
/* try to handle unsolicited responses as appropriate */
if ( id == 0 && msgid > LDAP_RES_UNSOLICITED ) {
int is_nod = 0;
tag = ber_peek_tag( &tmpber, &len );
/* we have a res oid */
if ( tag == LDAP_TAG_EXOP_RES_OID ) {
static struct berval bv_nod = BER_BVC( LDAP_NOTICE_OF_DISCONNECTION );
struct berval resoid = BER_BVNULL;
if ( ber_scanf( &tmpber, "m", &resoid ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return -1;
}
assert( !BER_BVISEMPTY( &resoid ) );
is_nod = ber_bvcmp( &resoid, &bv_nod ) == 0;
tag = ber_peek_tag( &tmpber, &len );
}
#if 0 /* don't need right now */
/* we have res data */
if ( tag == LDAP_TAG_EXOP_RES_VALUE ) {
struct berval resdata;
if ( ber_scanf( &tmpber, "m", &resdata ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 0 );
return ld->ld_errno;
}
/* use it... */
}
#endif
/* handle RFC 4511 "Notice of Disconnection" locally */
if ( is_nod ) {
if ( tag == LDAP_TAG_EXOP_RES_VALUE ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return -1;
}
/* get rid of the connection... */
if ( lc != NULL ) {
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
#endif
ldap_free_connection( ld, lc, 0, 1 );
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
#endif
lc = *lcp = NULL;
}
/* need to return -1, because otherwise
* a valid result is expected */
return -1;
}
}
/* make a new ldap message */
newmsg = (LDAPMessage *) LDAP_CALLOC( 1, sizeof(LDAPMessage) );
if ( newmsg == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return( -1 );
}
newmsg->lm_msgid = (int)id;
newmsg->lm_msgtype = tag;
newmsg->lm_ber = ber;
newmsg->lm_chain_tail = newmsg;
#ifdef LDAP_CONNECTIONLESS
/* CLDAP replies all fit in a single datagram. In LDAPv2 RFC1798
* the responses are all a sequence wrapped in one message. In
* LDAPv3 each response is in its own message. The datagram must
* end with a SearchResult. We can't just parse each response in
* separate calls to try_read1msg because the header info is only
* present at the beginning of the datagram, not at the beginning
* of each response. So parse all the responses at once and queue
* them up, then pull off the first response to return to the
* caller when all parsing is complete.
*/
if ( LDAP_IS_UDP(ld) ) {
/* If not a result, look for more */
if ( tag != LDAP_RES_SEARCH_RESULT ) {
int ok = 0;
moremsgs = 1;
if (isv2) {
/* LDAPv2: dup the current ber, skip past the current
* response, and see if there are any more after it.
*/
ber = ber_dup( ber );
ber_scanf( ber, "x" );
if ( ber_peek_tag( ber, &len ) != LBER_DEFAULT ) {
/* There's more - dup the ber buffer so they can all be
* individually freed by ldap_msgfree.
*/
struct berval bv;
ber_get_option( ber, LBER_OPT_BER_REMAINING_BYTES, &len );
bv.bv_val = LDAP_MALLOC( len );
if ( bv.bv_val ) {
ok = 1;
ber_read( ber, bv.bv_val, len );
bv.bv_len = len;
ber_init2( ber, &bv, ld->ld_lberoptions );
}
}
} else {
/* LDAPv3: Just allocate a new ber. Since this is a buffered
* datagram, if the sockbuf is readable we still have data
* to parse.
*/
ber = ldap_alloc_ber_with_options( ld );
if ( ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) ok = 1;
}
/* set up response chain */
if ( tmp == NULL ) {
newmsg->lm_next = ld->ld_responses;
ld->ld_responses = newmsg;
chain_head = newmsg;
} else {
tmp->lm_chain = newmsg;
}
chain_head->lm_chain_tail = newmsg;
tmp = newmsg;
/* "ok" means there's more to parse */
if ( ok ) {
if ( isv2 ) {
goto nextresp2;
} else {
goto nextresp3;
}
} else {
/* got to end of datagram without a SearchResult. Free
* our dup'd ber, but leave any buffer alone. For v2 case,
* the previous response is still using this buffer. For v3,
* the new ber has no buffer to free yet.
*/
ber_free( ber, 0 );
return -1;
}
} else if ( moremsgs ) {
/* got search result, and we had multiple responses in 1 datagram.
* stick the result onto the end of the chain, and then pull the
* first response off the head of the chain.
*/
tmp->lm_chain = newmsg;
chain_head->lm_chain_tail = newmsg;
*result = chkResponseList( ld, msgid, all );
ld->ld_errno = LDAP_SUCCESS;
return( (*result)->lm_msgtype );
}
}
#endif /* LDAP_CONNECTIONLESS */
/* is this the one we're looking for? */
if ( msgid == LDAP_RES_ANY || id == msgid ) {
if ( all == LDAP_MSG_ONE
|| ( newmsg->lm_msgtype != LDAP_RES_SEARCH_RESULT
&& newmsg->lm_msgtype != LDAP_RES_SEARCH_ENTRY
&& newmsg->lm_msgtype != LDAP_RES_SEARCH_REFERENCE ) )
{
*result = newmsg;
ld->ld_errno = LDAP_SUCCESS;
return( tag );
} else if ( newmsg->lm_msgtype == LDAP_RES_SEARCH_RESULT) {
foundit = 1; /* return the chain later */
}
}
/*
* if not, we must add it to the list of responses. if
* the msgid is already there, it must be part of an existing
* search response.
*/
prev = NULL;
for ( l = ld->ld_responses; l != NULL; l = l->lm_next ) {
if ( l->lm_msgid == newmsg->lm_msgid ) {
break;
}
prev = l;
}
/* not part of an existing search response */
if ( l == NULL ) {
if ( foundit ) {
*result = newmsg;
goto exit;
}
newmsg->lm_next = ld->ld_responses;
ld->ld_responses = newmsg;
goto exit;
}
Debug( LDAP_DEBUG_TRACE, "adding response ld %p msgid %ld type %ld:\n",
(void *)ld, (long) newmsg->lm_msgid, (long) newmsg->lm_msgtype );
/* part of a search response - add to end of list of entries */
l->lm_chain_tail->lm_chain = newmsg;
l->lm_chain_tail = newmsg;
/* return the whole chain if that's what we were looking for */
if ( foundit ) {
if ( prev == NULL ) {
ld->ld_responses = l->lm_next;
} else {
prev->lm_next = l->lm_next;
}
*result = l;
}
exit:
if ( foundit ) {
ld->ld_errno = LDAP_SUCCESS;
return( tag );
}
if ( lc && ber_sockbuf_ctrl( lc->lconn_sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
goto retry;
}
return( LDAP_MSG_X_KEEP_LOOKING ); /* continue looking */
}
static ber_tag_t
build_result_ber( LDAP *ld, BerElement **bp, LDAPRequest *lr )
{
ber_len_t len;
ber_tag_t tag;
ber_int_t along;
BerElement *ber;
*bp = NULL;
ber = ldap_alloc_ber_with_options( ld );
if( ber == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return LBER_ERROR;
}
if ( ber_printf( ber, "{it{ess}}", lr->lr_msgid,
lr->lr_res_msgtype, lr->lr_res_errno,
lr->lr_res_matched ? lr->lr_res_matched : "",
lr->lr_res_error ? lr->lr_res_error : "" ) == -1 )
{
ld->ld_errno = LDAP_ENCODING_ERROR;
ber_free( ber, 1 );
return( LBER_ERROR );
}
ber_reset( ber, 1 );
if ( ber_skip_tag( ber, &len ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( LBER_ERROR );
}
if ( ber_get_enum( ber, &along ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( LBER_ERROR );
}
tag = ber_peek_tag( ber, &len );
if ( tag == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( LBER_ERROR );
}
*bp = ber;
return tag;
}
int
ldap_create( LDAP **ldp )
{
LDAP *ld;
struct ldapoptions *gopts;
#if defined(__APPLE__) && defined(LDAP_R_COMPILE)
/* Init the global options in a nice thread-safe manner. */
dispatch_once_f(&ldap_global_opts_initialized, NULL, ldap_int_init_global_opts);
#endif
*ldp = NULL;
/* Get pointer to global option structure */
if ( (gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
return LDAP_NO_MEMORY;
}
#if defined(__APPLE__) && defined(LDAP_R_COMPILE)
/* Global options should have been initialized by pthread_once() */
if( gopts->ldo_valid != LDAP_INITIALIZED ) {
return LDAP_LOCAL_ERROR;
}
#else
/* Initialize the global options, if not already done. */
if( gopts->ldo_valid != LDAP_INITIALIZED ) {
ldap_int_initialize(gopts, NULL);
if ( gopts->ldo_valid != LDAP_INITIALIZED )
return LDAP_LOCAL_ERROR;
}
#endif
Debug( LDAP_DEBUG_TRACE, "ldap_create\n", 0, 0, 0 );
if ( (ld = (LDAP *) LDAP_CALLOC( 1, sizeof(LDAP) )) == NULL ) {
return( LDAP_NO_MEMORY );
}
if ( (ld->ldc = (struct ldap_common *) LDAP_CALLOC( 1,
sizeof(struct ldap_common) )) == NULL ) {
LDAP_FREE( (char *)ld );
return( LDAP_NO_MEMORY );
}
/* copy the global options */
LDAP_MUTEX_LOCK( &gopts->ldo_mutex );
AC_MEMCPY(&ld->ld_options, gopts, sizeof(ld->ld_options));
#ifdef LDAP_R_COMPILE
/* Properly initialize the structs mutex */
ldap_pvt_thread_mutex_init( &(ld->ld_ldopts_mutex) );
#endif
LDAP_MUTEX_UNLOCK( &gopts->ldo_mutex );
ld->ld_valid = LDAP_VALID_SESSION;
/* but not pointers to malloc'ed items */
ld->ld_options.ldo_sctrls = NULL;
ld->ld_options.ldo_cctrls = NULL;
ld->ld_options.ldo_defludp = NULL;
ld->ld_options.ldo_conn_cbs = NULL;
ld->ld_options.ldo_noaddr_option = 0;
ld->ld_options.ldo_sasl_fqdn = NULL;
#ifdef HAVE_CYRUS_SASL
ld->ld_options.ldo_def_sasl_mech = gopts->ldo_def_sasl_mech
? LDAP_STRDUP( gopts->ldo_def_sasl_mech ) : NULL;
ld->ld_options.ldo_def_sasl_realm = gopts->ldo_def_sasl_realm
? LDAP_STRDUP( gopts->ldo_def_sasl_realm ) : NULL;
ld->ld_options.ldo_def_sasl_authcid = gopts->ldo_def_sasl_authcid
? LDAP_STRDUP( gopts->ldo_def_sasl_authcid ) : NULL;
ld->ld_options.ldo_def_sasl_authzid = gopts->ldo_def_sasl_authzid
? LDAP_STRDUP( gopts->ldo_def_sasl_authzid ) : NULL;
#endif
#ifdef HAVE_TLS
/* We explicitly inherit the SSL_CTX, don't need the names/paths. Leave
* them empty to allow new SSL_CTX's to be created from scratch.
*/
memset( &ld->ld_options.ldo_tls_info, 0,
sizeof( ld->ld_options.ldo_tls_info ));
ld->ld_options.ldo_tls_ctx = NULL;
#endif
if ( gopts->ldo_defludp ) {
ld->ld_options.ldo_defludp = ldap_url_duplist(gopts->ldo_defludp);
if ( ld->ld_options.ldo_defludp == NULL ) goto nomem;
}
if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) goto nomem;
ld->ld_lberoptions = LBER_USE_DER;
ld->ld_sb = ber_sockbuf_alloc( );
if ( ld->ld_sb == NULL ) goto nomem;
#ifdef LDAP_RESPONSE_RB_TREE
ldap_resp_rbt_create( ld );
if ( ld->ld_rbt_responses == NULL ) {
goto nomem;
}
#endif
#ifdef LDAP_R_COMPILE
ldap_pvt_thread_mutex_init( &ld->ld_msgid_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_conn_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_req_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_res_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_abandon_mutex );
ldap_pvt_thread_mutex_init( &ld->ld_ldcmutex );
#endif
ld->ld_ldcrefcnt = 1;
*ldp = ld;
return LDAP_SUCCESS;
nomem:
ldap_free_select_info( ld->ld_selectinfo );
ldap_free_urllist( ld->ld_options.ldo_defludp );
#ifdef HAVE_CYRUS_SASL
LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
#endif
LDAP_FREE( (char *)ld );
return LDAP_NO_MEMORY;
}
int
ldap_parse_derefresponse_control(
LDAP *ld,
LDAPControl *ctrl,
LDAPDerefRes **drp2 )
{
BerElement *ber;
ber_tag_t tag;
ber_len_t len;
char *last;
LDAPDerefRes *drhead = NULL, **drp;
if ( ld == NULL || ctrl == NULL || drp2 == NULL ) {
if ( ld )
ld->ld_errno = LDAP_PARAM_ERROR;
return LDAP_PARAM_ERROR;
}
/* Create a BerElement from the berval returned in the control. */
ber = ber_init( &ctrl->ldctl_value );
if ( ber == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return ld->ld_errno;
}
/* Extract the count and cookie from the control. */
drp = &drhead;
for ( tag = ber_first_element( ber, &len, &last );
tag != LBER_DEFAULT;
tag = ber_next_element( ber, &len, last ) )
{
LDAPDerefRes *dr;
LDAPDerefVal **dvp;
char *last2;
dr = LDAP_CALLOC( 1, sizeof(LDAPDerefRes) );
dvp = &dr->attrVals;
tag = ber_scanf( ber, "{ao", &dr->derefAttr, &dr->derefVal );
if ( tag == LBER_ERROR ) {
goto done;
}
tag = ber_peek_tag( ber, &len );
if ( tag == (LBER_CONSTRUCTED|LBER_CLASS_CONTEXT) ) {
for ( tag = ber_first_element( ber, &len, &last2 );
tag != LBER_DEFAULT;
tag = ber_next_element( ber, &len, last2 ) )
{
LDAPDerefVal *dv;
dv = LDAP_CALLOC( 1, sizeof(LDAPDerefVal) );
tag = ber_scanf( ber, "{a[W]}", &dv->type, &dv->vals );
if ( tag == LBER_ERROR ) {
goto done;
}
*dvp = dv;
dvp = &dv->next;
}
}
tag = ber_scanf( ber, "}" );
if ( tag == LBER_ERROR ) {
goto done;
}
*drp = dr;
drp = &dr->next;
}
tag = 0;
done:;
ber_free( ber, 1 );
if ( tag == LBER_ERROR ) {
if ( drhead != NULL ) {
ldap_derefresponse_free( drhead );
}
*drp2 = NULL;
ld->ld_errno = LDAP_DECODING_ERROR;
} else {
*drp2 = drhead;
ld->ld_errno = LDAP_SUCCESS;
}
return ld->ld_errno;
}