r25446: Merge some changes I made on the way home from SFO:
[kai/samba.git] / source4 / ldap_server / ldap_backend.c
index bbb16a2e9040b8e7a8fabc7d430ea17e996fadd3..25d19a5a588f6df70fb33455e5b6c18811c12801 100644 (file)
@@ -5,7 +5,7 @@
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
 #include "lib/ldb/include/ldb.h"
 #include "lib/ldb/include/ldb_errors.h"
 #include "lib/db_wrap.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "param/param.h"
 
 #define VALID_DN_SYNTAX(dn,i) do {\
        if (!(dn)) {\
                return NT_STATUS_NO_MEMORY;\
-       } else if ((dn)->comp_num < (i)) {\
+       } else if ( ! ldb_dn_validate(dn)) {\
+               result = LDAP_INVALID_DN_SYNTAX;\
+               errstr = "Invalid DN format";\
+               goto reply;\
+       } else if (ldb_dn_get_comp_num(dn) < (i)) {\
                result = LDAP_INVALID_DN_SYNTAX;\
                errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
                goto reply;\
@@ -49,15 +55,39 @@ static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstrin
 */
 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn) 
 {
-       conn->ldb = ldb_wrap_connect(conn, lp_sam_url(), conn->session_info,
+       conn->ldb = ldb_wrap_connect(conn, 
+                                    global_loadparm,
+                                    lp_sam_url(global_loadparm), conn->session_info,
                                     NULL, conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
        if (conn->ldb == NULL) {
                return NT_STATUS_INTERNAL_DB_CORRUPTION;
        }
-       ldb_set_opaque(conn->ldb, "server_credentials", conn->server_credentials);
 
-       if (conn->global_catalog) {
-               ldb_set_opaque(conn->ldb, "global_catalog", (void *)(-1));
+       if (conn->server_credentials) {
+               char **sasl_mechs = NULL;
+               struct gensec_security_ops **backends = gensec_security_all();
+               struct gensec_security_ops **ops
+                       = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
+               int i, j = 0;
+               for (i = 0; ops && ops[i]; i++) {
+                       if (ops[i]->sasl_name && ops[i]->server_start) {
+                               char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
+
+                               if (!sasl_name) {
+                                       return NT_STATUS_NO_MEMORY;
+                               }
+                               sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
+                               if (!sasl_mechs) {
+                                       return NT_STATUS_NO_MEMORY;
+                               }
+                               sasl_mechs[j] = sasl_name;
+                               talloc_steal(sasl_mechs, sasl_name);
+                               sasl_mechs[j+1] = NULL;
+                               j++;
+                       }
+               }
+               talloc_free(ops);
+               ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
        }
 
        return NT_STATUS_OK;
@@ -89,7 +119,7 @@ void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
        DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
 }
 
-NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
+static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 {
        struct ldapsrv_reply *reply;
        struct ldap_ExtendedResponse *r;
@@ -113,65 +143,6 @@ NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
        return NT_STATUS_OK;
 }
 
-static int ldapsrv_SearchCallback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
-{
-       struct ldb_result *res;
-       int n;
-       
-       if (!context || !ares) {
-               DEBUG(3, ("NULL Context or Ares in ldapsrv_SearchCallback"));
-               return LDB_ERR_OPERATIONS_ERROR;
-       }       
-
-       res = talloc_get_type(context, struct ldb_result);
-
-       if (ares->type == LDB_REPLY_ENTRY) {
-               res->msgs = talloc_realloc(res, res->msgs, struct ldb_message *, res->count + 2);
-               if (! res->msgs) {
-                       goto error;
-               }
-
-               res->msgs[res->count + 1] = NULL;
-
-               res->msgs[res->count] = talloc_steal(res->msgs, ares->message);
-               if (! res->msgs[res->count]) {
-                       goto error;
-               }
-
-               res->count++;
-       }
-
-       if (ares->type == LDB_REPLY_REFERRAL) {
-               if (res->refs) {
-                       for (n = 0; res->refs[n]; n++) /*noop*/ ;
-               } else {
-                       n = 0;
-               }
-
-               res->refs = talloc_realloc(res, res->refs, char *, n + 2);
-               if (! res->refs) {
-                       goto error;
-               }
-
-               res->refs[n] = talloc_steal(res->refs, ares->referral);
-               res->refs[n + 1] = NULL;
-       }
-
-       if (ares->controls) {
-               res->controls = talloc_steal(res, ares->controls);
-               if (! res->controls) {
-                       goto error;
-               }
-       }
-
-       talloc_free(ares);
-       return LDB_SUCCESS;
-
-error:
-       talloc_free(ares);
-       return LDB_ERR_OPERATIONS_ERROR;
-}
-
 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 {
        struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
@@ -185,7 +156,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        struct ldb_request *lreq;
        enum ldb_scope scope = LDB_SCOPE_DEFAULT;
        const char **attrs = NULL;
-       const char *errstr = NULL;
+       const char *scope_str, *errstr = NULL;
        int success_limit = 1;
        int result = -1;
        int ldb_ret = -1;
@@ -198,7 +169,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
        local_ctx = talloc_new(call);
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       basedn = ldb_dn_explode(local_ctx, req->basedn);
+       basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
        VALID_DN_SYNTAX(basedn, 0);
 
        DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
@@ -206,24 +177,29 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 
        switch (req->scope) {
                case LDAP_SEARCH_SCOPE_BASE:
-                       DEBUG(10,("SearchRequest: scope: [BASE]\n"));
+                       scope_str = "BASE";
                        scope = LDB_SCOPE_BASE;
                        success_limit = 0;
                        break;
                case LDAP_SEARCH_SCOPE_SINGLE:
-                       DEBUG(10,("SearchRequest: scope: [ONE]\n"));
+                       scope_str = "ONE";
                        scope = LDB_SCOPE_ONELEVEL;
                        success_limit = 0;
                        break;
                case LDAP_SEARCH_SCOPE_SUB:
-                       DEBUG(10,("SearchRequest: scope: [SUB]\n"));
+                       scope_str = "SUB";
                        scope = LDB_SCOPE_SUBTREE;
                        success_limit = 0;
                        break;
+               default:
+                       result = LDAP_PROTOCOL_ERROR;
+                       errstr = "Invalid scope";
+                       goto reply;
        }
+       DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
 
        if (req->num_attributes >= 1) {
-               attrs = talloc_array(samdb, const char *, req->num_attributes+1);
+               attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
                NT_STATUS_HAVE_NO_MEMORY(attrs);
 
                for (i=0; i < req->num_attributes; i++) {
@@ -233,8 +209,8 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                attrs[i] = NULL;
        }
 
-       DEBUG(5,("ldb_request dn=%s filter=%s\n", 
-                req->basedn, ldb_filter_from_tree(call, req->tree)));
+       DEBUG(5,("ldb_request %s dn=%s filter=%s\n", 
+                scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
 
        lreq = talloc(local_ctx, struct ldb_request);
        NT_STATUS_HAVE_NO_MEMORY(lreq);
@@ -250,8 +226,23 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 
        lreq->controls = call->request->controls;
 
+       if (call->conn->global_catalog) {
+               struct ldb_control *search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
+               
+               struct ldb_search_options_control *search_options = NULL;
+               if (search_control) {
+                       search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
+                       search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
+               } else {
+                       search_options = talloc(lreq, struct ldb_search_options_control);
+                       NT_STATUS_HAVE_NO_MEMORY(search_options);
+                       search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
+                       ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
+               }
+       }
+
        lreq->context = res;
-       lreq->callback = ldapsrv_SearchCallback;
+       lreq->callback = ldb_search_default_callback;
 
        /* Copy the timeout from the incoming call */
        ldb_set_timeout(samdb, lreq, req->timelimit);
@@ -270,7 +261,7 @@ static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
                        NT_STATUS_HAVE_NO_MEMORY(ent_r);
 
                        ent = &ent_r->msg->r.SearchResultEntry;
-                       ent->dn = ldb_dn_linearize(ent_r, res->msgs[i]->dn);
+                       ent->dn = ldb_dn_alloc_linearized(ent_r, res->msgs[i]->dn);
                        ent->num_attributes = 0;
                        ent->attributes = NULL;
                        if (res->msgs[i]->num_elements == 0) {
@@ -352,7 +343,7 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
        local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       dn = ldb_dn_explode(local_ctx, req->dn);
+       dn = ldb_dn_new(local_ctx, samdb, req->dn);
        VALID_DN_SYNTAX(dn, 1);
 
        DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
@@ -361,7 +352,6 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
        NT_STATUS_HAVE_NO_MEMORY(msg);
 
        msg->dn = dn;
-       msg->private_data = NULL;
        msg->num_elements = 0;
        msg->elements = NULL;
 
@@ -393,7 +383,8 @@ static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 
                        msg->elements[i].num_values = req->mods[i].attrib.num_values;
                        if (msg->elements[i].num_values > 0) {
-                               msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
+                               msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
+                                                                      msg->elements[i].num_values);
                                NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 
                                for (j=0; j < msg->elements[i].num_values; j++) {
@@ -455,7 +446,7 @@ static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
        local_ctx = talloc_named(call, 0, "AddRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       dn = ldb_dn_explode(local_ctx, req->dn);
+       dn = ldb_dn_new(local_ctx, samdb, req->dn);
        VALID_DN_SYNTAX(dn,1);
 
        DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
@@ -464,7 +455,6 @@ static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
        NT_STATUS_HAVE_NO_MEMORY(msg);
 
        msg->dn = dn;
-       msg->private_data = NULL;
        msg->num_elements = 0;
        msg->elements = NULL;
 
@@ -481,7 +471,8 @@ static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
                        
                        if (req->attributes[i].num_values > 0) {
                                msg->elements[i].num_values = req->attributes[i].num_values;
-                               msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
+                               msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
+                                                                      msg->elements[i].num_values);
                                NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 
                                for (j=0; j < msg->elements[i].num_values; j++) {
@@ -545,7 +536,7 @@ static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
        local_ctx = talloc_named(call, 0, "DelRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       dn = ldb_dn_explode(local_ctx, req->dn);
+       dn = ldb_dn_new(local_ctx, samdb, req->dn);
        VALID_DN_SYNTAX(dn,1);
 
        DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
@@ -578,7 +569,7 @@ static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
        struct ldapsrv_reply *modifydn_r;
        void *local_ctx;
        struct ldb_context *samdb = call->conn->ldb;
-       struct ldb_dn *olddn, *newdn, *newrdn;
+       struct ldb_dn *olddn, *newdn=NULL, *newrdn;
        struct ldb_dn *parentdn = NULL;
        const char *errstr = NULL;
        int result = LDAP_SUCCESS;
@@ -591,10 +582,10 @@ static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
        local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       olddn = ldb_dn_explode(local_ctx, req->dn);
+       olddn = ldb_dn_new(local_ctx, samdb, req->dn);
        VALID_DN_SYNTAX(olddn, 2);
 
-       newrdn = ldb_dn_explode(local_ctx, req->newrdn);
+       newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
        VALID_DN_SYNTAX(newrdn, 1);
 
        DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
@@ -607,18 +598,12 @@ static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
                goto reply;
        }
 
-       if (newrdn->comp_num > 1) {
-               result = LDAP_NAMING_VIOLATION;
-               errstr = "Error new RDN invalid";
-               goto reply;
-       }
-
        if (req->newsuperior) {
-               parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
+               parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
                VALID_DN_SYNTAX(parentdn, 0);
                DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
                
-               if (parentdn->comp_num < 1) {
+               if (ldb_dn_get_comp_num(parentdn) < 1) {
                        result = LDAP_AFFECTS_MULTIPLE_DSAS;
                        errstr = "Error new Superior DN invalid";
                        goto reply;
@@ -630,8 +615,14 @@ static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
                NT_STATUS_HAVE_NO_MEMORY(parentdn);
        }
 
-       newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
-       NT_STATUS_HAVE_NO_MEMORY(newdn);
+       if ( ! ldb_dn_add_child_fmt(parentdn,
+                               "%s=%s",
+                               ldb_dn_get_rdn_name(newrdn),
+                               (char *)ldb_dn_get_rdn_val(newrdn)->data)) {
+               result = LDAP_OTHER;
+               goto reply;
+       }
+       newdn = parentdn;
 
 reply:
        modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
@@ -675,7 +666,7 @@ static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
        local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
        NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 
-       dn = ldb_dn_explode(local_ctx, req->dn);
+       dn = ldb_dn_new(local_ctx, samdb, req->dn);
        VALID_DN_SYNTAX(dn, 1);
 
        DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
@@ -693,7 +684,7 @@ reply:
 
        if (result == LDAP_SUCCESS) {
                ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
-               talloc_steal(samdb, res);
+               talloc_steal(local_ctx, res);
                if (ldb_ret != LDB_SUCCESS) {
                        result = map_ldb_error(samdb, ldb_ret, &errstr);
                        DEBUG(10,("CompareRequest: error: %s\n", errstr));