]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/extended.c
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[openldap] / servers / slapd / extended.c
index 23923fc82686eae077bb650af27b04be13c5855d..2d315f36ce1a5b12dbb01bc6952ecf4afb1bed53 100644 (file)
@@ -1,6 +1,6 @@
 /* $OpenLDAP$ */
 /* 
- * Copyright 1999-2000 The OpenLDAP Foundation.
+ * Copyright 1999-2002 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms are permitted only
 /*
  * LDAPv3 Extended Operation Request
  *     ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
- *             requestName      [0] LDAPOID,
- *             requestValue     [1] OCTET STRING OPTIONAL
+ *             requestName      [0] LDAPOID,
+ *             requestValue     [1] OCTET STRING OPTIONAL
  *     }
  *
  * LDAPv3 Extended Operation Response
  *     ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
  *             COMPONENTS OF LDAPResult,
- *             responseName     [10] LDAPOID OPTIONAL,
- *             response         [11] OCTET STRING OPTIONAL
+ *             responseName     [10] LDAPOID OPTIONAL,
+ *             response         [11] OCTET STRING OPTIONAL
  *     }
  *
  */
 
 #include <stdio.h>
 #include <ac/socket.h>
+#include <ac/string.h>
 
 #include "slap.h"
+#include "lber_pvt.h"
 
-#define MAX_OID_LENGTH 128
+static struct extop_list {
+       struct extop_list *next;
+       struct berval oid;
+       SLAP_EXTOP_MAIN_FN *ext_main;
+} *supp_ext_list = NULL;
 
-typedef struct extop_list_t {
-       struct extop_list_t *next;
-       char *oid;
-       SLAP_EXTOP_MAIN_FN ext_main;
-} extop_list_t;
+static SLAP_EXTOP_MAIN_FN whoami_extop;
 
-extop_list_t *supp_ext_list = NULL;
+/* BerVal Constant initializer */
+
+#define        BVC(x)  {sizeof(x)-1, x}
 
 /* this list of built-in extops is for extops that are not part
- * of backends or in external modules.  essentially, this is
+ * of backends or in external modules. essentially, this is
  * just a way to get built-in extops onto the extop list without
  * having a separate init routine for each built-in extop.
  */
-struct {
-       char *oid;
-       SLAP_EXTOP_MAIN_FN ext_main;
+static struct {
+       struct berval oid;
+       SLAP_EXTOP_MAIN_FN *ext_main;
 } builtin_extops[] = {
 #ifdef HAVE_TLS
-               { LDAP_EXOP_START_TLS, starttls_extop },
+       { BVC(LDAP_EXOP_START_TLS), starttls_extop },
 #endif
-               { LDAP_EXOP_X_MODIFY_PASSWD, passwd_extop },
-               { NULL, NULL }
-       };
-
+       { BVC(LDAP_EXOP_MODIFY_PASSWD), passwd_extop },
+       { BVC(LDAP_EXOP_X_WHO_AM_I), whoami_extop },
+       { {0,NULL}, NULL }
+};
 
-static extop_list_t *find_extop( extop_list_t *list, char *oid );
 
-static int extop_callback(
-       Connection *conn, Operation *op,
-       int msg, int arg, void *argp);
+static struct extop_list *find_extop(
+       struct extop_list *list, struct berval *oid );
 
-char *
+struct berval *
 get_supported_extop (int index)
 {
-       extop_list_t *ext;
+       struct extop_list *ext;
 
        /* linear scan is slow, but this way doesn't force a
         * big change on root_dse.c, where this routine is used.
         */
-       for (ext = supp_ext_list; ext != NULL && --index >= 0; ext = ext->next) ;
-       if (ext == NULL)
-               return(NULL);
-       return(ext->oid);
+       for (ext = supp_ext_list; ext != NULL && --index >= 0; ext = ext->next) {
+               ; /* empty */
+       }
+
+       if (ext == NULL) return NULL;
+
+       return &ext->oid ;
 }
 
 int
@@ -86,42 +91,60 @@ do_extended(
 )
 {
        int rc = LDAP_SUCCESS;
-       char* reqoid;
-       struct berval *reqdata;
+       struct berval reqoid = {0, NULL};
+       struct berval reqdata = {0, NULL};
        ber_tag_t tag;
        ber_len_t len;
-       extop_list_t *ext;
+       struct extop_list *ext;
        const char *text;
-       struct berval **refs;
+       BerVarray refs;
        char *rspoid;
        struct berval *rspdata;
        LDAPControl **rspctrls;
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( OPERATION, ENTRY, "do_extended: conn %d\n", conn->c_connid, 0, 0 );
+#else
        Debug( LDAP_DEBUG_TRACE, "do_extended\n", 0, 0, 0 );
-
-       reqoid = NULL;
-       reqdata = NULL;
+#endif
 
        if( op->o_protocol < LDAP_VERSION3 ) {
-               Debug( LDAP_DEBUG_ANY, "do_extended: protocol version (%d) too low\n",
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, 
+                       "do_extended: protocol version (%d) too low.\n", op->o_protocol, 0, 0 );
+#else
+               Debug( LDAP_DEBUG_ANY,
+                       "do_extended: protocol version (%d) too low\n",
                        op->o_protocol, 0 ,0 );
+#endif
                send_ldap_disconnect( conn, op,
                        LDAP_PROTOCOL_ERROR, "requires LDAPv3" );
                rc = -1;
                goto done;
        }
 
-       if ( ber_scanf( op->o_ber, "{a" /*}*/, &reqoid ) == LBER_ERROR ) {
+       if ( ber_scanf( op->o_ber, "{m" /*}*/, &reqoid ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, "do_extended: conn %d  ber_scanf failed\n", 
+                       conn->c_connid, 0, 0 );
+#else
                Debug( LDAP_DEBUG_ANY, "do_extended: ber_scanf failed\n", 0, 0 ,0 );
+#endif
                send_ldap_disconnect( conn, op,
                        LDAP_PROTOCOL_ERROR, "decoding error" );
                rc = -1;
                goto done;
        }
 
-       if( !(ext = find_extop(supp_ext_list, reqoid)) ) {
+       if( !(ext = find_extop(supp_ext_list, &reqoid)) ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, 
+                       "do_extended: conn %d  unsupported operation \"%s\"\n",
+                       conn->c_connid, reqoid.bv_val, 0 );
+#else
                Debug( LDAP_DEBUG_ANY, "do_extended: unsupported operation \"%s\"\n",
-                       reqoid, 0 ,0 );
+                       reqoid.bv_val, 0 ,0 );
+#endif
                send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
                        NULL, "unsupported extended operation", NULL, NULL );
                goto done;
@@ -130,8 +153,14 @@ do_extended(
        tag = ber_peek_tag( op->o_ber, &len );
        
        if( ber_peek_tag( op->o_ber, &len ) == LDAP_TAG_EXOP_REQ_VALUE ) {
-               if( ber_scanf( op->o_ber, "O", &reqdata ) == LBER_ERROR ) {
+               if( ber_scanf( op->o_ber, "m", &reqdata ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( OPERATION, ERR, 
+                               "do_extended: conn %d  ber_scanf failed\n", 
+                               conn->c_connid, 0, 0 );
+#else
                        Debug( LDAP_DEBUG_ANY, "do_extended: ber_scanf failed\n", 0, 0 ,0 );
+#endif
                        send_ldap_disconnect( conn, op,
                                LDAP_PROTOCOL_ERROR, "decoding error" );
                        rc = -1;
@@ -140,11 +169,30 @@ do_extended(
        }
 
        if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( OPERATION, ERR, 
+                       "do_extended: conn %d  get_ctrls failed\n", conn->c_connid, 0, 0 );
+#else
                Debug( LDAP_DEBUG_ANY, "do_extended: get_ctrls failed\n", 0, 0 ,0 );
+#endif
                return rc;
        } 
 
-       Debug( LDAP_DEBUG_ARGS, "do_extended: oid=%s\n", reqoid, 0 ,0 );
+       /* check for controls inappropriate for all extended operations */
+       if( get_manageDSAit( op ) == SLAP_CRITICAL_CONTROL ) {
+               send_ldap_result( conn, op,
+                       rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION,
+                       NULL, "manageDSAit control inappropriate",
+                       NULL, NULL );
+               goto done;
+       }
+
+#ifdef NEW_LOGGING
+       LDAP_LOG( OPERATION, DETAIL1, 
+               "do_extended: conn %d  oid=%d\n.", conn->c_connid, reqoid.bv_val, 0 );
+#else
+       Debug( LDAP_DEBUG_ARGS, "do_extended: oid=%s\n", reqoid.bv_val, 0 ,0 );
+#endif
 
        rspoid = NULL;
        rspdata = NULL;
@@ -152,53 +200,50 @@ do_extended(
        text = NULL;
        refs = NULL;
 
-       rc = (ext->ext_main)( extop_callback, conn, op,
-               reqoid, reqdata,
+       rc = (ext->ext_main)( conn, op,
+               reqoid.bv_val, reqdata.bv_val ? &reqdata : NULL,
                &rspoid, &rspdata, &rspctrls, &text, &refs );
 
        if( rc != SLAPD_ABANDON ) {
-               if (rc == LDAP_REFERRAL) {
-                       refs = default_referral;
+               if ( rc == LDAP_REFERRAL && refs == NULL ) {
+                       refs = referral_rewrite( default_referral,
+                               NULL, NULL, LDAP_SCOPE_DEFAULT );
                }
 
                send_ldap_extended( conn, op, rc, NULL, text, refs,
                        rspoid, rspdata, rspctrls );
+
+               ber_bvarray_free( refs );
        }
 
        if ( rspoid != NULL ) {
                free( rspoid );
        }
 
-       if ( rspdata != NULL )
+       if ( rspdata != NULL ) {
                ber_bvfree( rspdata );
-
-done:
-       if ( reqdata != NULL ) {
-               ber_bvfree( reqdata );
-       }
-       if ( reqoid != NULL ) {
-               free( reqoid );
        }
 
+done:
        return rc;
 }
 
 int
 load_extop(
        const char *ext_oid,
-       SLAP_EXTOP_MAIN_FN ext_main )
+       SLAP_EXTOP_MAIN_FN *ext_main )
 {
-       extop_list_t *ext;
+       struct extop_list *ext;
 
        if( ext_oid == NULL || *ext_oid == '\0' ) return -1; 
        if(!ext_main) return -1; 
 
-       ext = ch_calloc(1, sizeof(extop_list_t));
+       ext = ch_calloc(1, sizeof(struct extop_list));
        if (ext == NULL)
                return(-1);
 
-       ext->oid = ch_strdup( ext_oid );
-       if (ext->oid == NULL) {
+       ber_str2bv( ext_oid, 0, 1, &ext->oid );
+       if (ext->oid.bv_val == NULL) {
                free(ext);
                return(-1);
        }
@@ -216,8 +261,8 @@ extops_init (void)
 {
        int i;
 
-       for (i = 0; builtin_extops[i].oid != NULL; i++) {
-               load_extop(builtin_extops[i].oid, builtin_extops[i].ext_main);
+       for (i = 0; builtin_extops[i].oid.bv_val != NULL; i++) {
+               load_extop(builtin_extops[i].oid.bv_val, builtin_extops[i].ext_main);
        }
        return(0);
 }
@@ -225,68 +270,75 @@ extops_init (void)
 int
 extops_kill (void)
 {
-       extop_list_t *ext;
+       struct extop_list *ext;
 
        /* we allocated the memory, so we have to free it, too. */
        while ((ext = supp_ext_list) != NULL) {
                supp_ext_list = ext->next;
-               if (ext->oid != NULL)
-                       ch_free(ext->oid);
+               if (ext->oid.bv_val != NULL)
+                       ch_free(ext->oid.bv_val);
                ch_free(ext);
        }
        return(0);
 }
 
-static extop_list_t *
-find_extop( extop_list_t *list, char *oid )
+static struct extop_list *
+find_extop( struct extop_list *list, struct berval *oid )
 {
-       extop_list_t *ext;
+       struct extop_list *ext;
 
        for (ext = list; ext; ext = ext->next) {
-               if (strcmp(ext->oid, oid) == 0)
+               if (ber_bvcmp(&ext->oid, oid) == 0)
                        return(ext);
        }
        return(NULL);
 }
 
-int
-extop_callback(
-       Connection *conn, Operation *op,
-       int msg, int arg, void *argp)
+
+static int
+whoami_extop (
+       Connection *conn,
+       Operation *op,
+       const char * reqoid,
+       struct berval * reqdata,
+       char ** rspoid,
+       struct berval ** rspdata,
+       LDAPControl ***rspctrls,
+       const char ** text,
+       BerVarray * refs )
 {
-       if (argp == NULL)
-               return(-1);
+       struct berval *bv;
 
-       switch (msg) {
-       case SLAPD_EXTOP_GETVERSION:
-               *(int *)argp = 1;
-               return(0);
+       if ( reqdata != NULL ) {
+               /* no request data should be provided */
+               *text = "no request data expected";
+               return LDAP_PROTOCOL_ERROR;
+       }
 
-       case SLAPD_EXTOP_GETPROTO:
-               *(int *)argp = op->o_protocol;
-               return(0);
-       
-       case SLAPD_EXTOP_GETAUTH:
-               *(int *)argp = op->o_authtype;
-               return(0);
-       
-       case SLAPD_EXTOP_GETDN:
-               *(char **)argp = op->o_dn;
-               return(0);
-       
-       case SLAPD_EXTOP_GETCLIENT:
-               if (conn->c_peer_domain != NULL && *conn->c_peer_domain != 0) {
-                       *(char **)argp = conn->c_peer_domain;
-                       return(0);
-               }
-               if (conn->c_peer_name != NULL && *conn->c_peer_name != 0) {
-                       *(char **)argp = conn->c_peer_name;
-                       return(0);
-               }
-               break;
-       
-       default:
-               break;
+       {
+               int rc;
+               struct berval whoami = BER_BVC( LDAP_EXOP_X_WHO_AM_I );
+
+               rc = backend_check_restrictions( conn->c_authz_backend,
+                       conn, op, &whoami, text );
+
+               if( rc != LDAP_SUCCESS ) return rc;
+       }
+
+       bv = (struct berval *) ch_malloc( sizeof(struct berval) );
+       if( op->o_dn.bv_len ) {
+               bv->bv_len = op->o_dn.bv_len + sizeof("dn:")-1;
+               bv->bv_val = ch_malloc( bv->bv_len + 1 );
+               AC_MEMCPY( bv->bv_val, "dn:", sizeof("dn:")-1 );
+               AC_MEMCPY( &bv->bv_val[sizeof("dn:")-1], op->o_dn.bv_val,
+                       op->o_dn.bv_len );
+               bv->bv_val[bv->bv_len] = '\0';
+
+       } else {
+               bv->bv_len = 0;
+               bv->bv_val = NULL;
        }
-       return(-1);
+
+       *rspdata = bv;
+       return LDAP_SUCCESS;
 }