Large set of changes to add UNIX account/group management
[samba.git] / source3 / nsswitch / wb_client.c
index 47f1520efa667b4ced17acb0611e7b4bbf0b4d5c..26a0e58191f4357cd3745686da25c8e0de162a21 100644 (file)
@@ -1,6 +1,5 @@
 /* 
-   Unix SMB/Netbios implementation.
-   Version 2.0
+   Unix SMB/CIFS implementation.
 
    winbind client code
 
 */
 
 #include "includes.h"
+#include "nsswitch/winbind_nss.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+extern DOM_SID global_sid_NULL;                        /* NULL sid */
+
+NSS_STATUS winbindd_request(int req_type,
+                                 struct winbindd_request *request,
+                                 struct winbindd_response *response);
 
 /* Call winbindd to convert a name to a sid */
 
-BOOL winbind_lookup_name(char *name, DOM_SID *sid, uint8 *name_type)
+BOOL winbind_lookup_name(const char *dom_name, const char *name, DOM_SID *sid, 
+                         enum SID_NAME_USE *name_type)
 {
        struct winbindd_request request;
        struct winbindd_response response;
-       enum nss_status result;
+       NSS_STATUS result;
        
        if (!sid || !name_type)
                return False;
@@ -41,11 +51,14 @@ BOOL winbind_lookup_name(char *name, DOM_SID *sid, uint8 *name_type)
        ZERO_STRUCT(request);
        ZERO_STRUCT(response);
 
-       fstrcpy(request.data.name, name);
+       fstrcpy(request.data.name.dom_name, dom_name);
+       fstrcpy(request.data.name.name, name);
+
        if ((result = winbindd_request(WINBINDD_LOOKUPNAME, &request, 
                                       &response)) == NSS_STATUS_SUCCESS) {
-               string_to_sid(sid, response.data.sid.sid);
-               *name_type = response.data.sid.type;
+               if (!string_to_sid(sid, response.data.sid.sid))
+                       return False;
+               *name_type = (enum SID_NAME_USE)response.data.sid.type;
        }
 
        return result == NSS_STATUS_SUCCESS;
@@ -53,33 +66,53 @@ BOOL winbind_lookup_name(char *name, DOM_SID *sid, uint8 *name_type)
 
 /* Call winbindd to convert sid to name */
 
-BOOL winbind_lookup_sid(DOM_SID *sid, fstring dom_name, fstring name, 
-                       uint8 *name_type)
+BOOL winbind_lookup_sid(const DOM_SID *sid, 
+                       fstring dom_name, fstring name, 
+                        enum SID_NAME_USE *name_type)
 {
        struct winbindd_request request;
        struct winbindd_response response;
-       enum nss_status result;
-       DOM_SID tmp_sid;
-       uint32 rid;
+       NSS_STATUS result;
        fstring sid_str;
        
-       if (!name_type)
-               return False;
+       /* Initialise request */
+
+       ZERO_STRUCT(request);
+       ZERO_STRUCT(response);
+
+       sid_to_string(sid_str, sid);
+       fstrcpy(request.data.sid, sid_str);
+       
+       /* Make request */
 
-       /* Check if this is our own sid.  This should perhaps be done by
-          winbind?  For the moment handle it here. */
+       result = winbindd_request(WINBINDD_LOOKUPSID, &request, &response);
 
-       if (sid->num_auths == 5) {
-               sid_copy(&tmp_sid, sid);
-               sid_split_rid(&tmp_sid, &rid);
+       /* Copy out result */
 
-               if (sid_equal(&global_sam_sid, &tmp_sid)) {
+       if (result == NSS_STATUS_SUCCESS) {
+               fstrcpy(dom_name, response.data.name.dom_name);
+               fstrcpy(name, response.data.name.name);
+               *name_type = (enum SID_NAME_USE)response.data.name.type;
 
-               return map_domain_sid_to_name(&tmp_sid, dom_name) &&
-                       local_lookup_rid(rid, name, name_type);
-               }
+               DEBUG(10, ("winbind_lookup_sid: SUCCESS: SID %s -> %s %s\n", 
+                           sid_str, dom_name, name));
        }
 
+       return (result == NSS_STATUS_SUCCESS);
+}
+
+/* Call winbindd to convert SID to uid */
+
+BOOL winbind_sid_to_uid(uid_t *puid, const DOM_SID *sid)
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       int result;
+       fstring sid_str;
+
+       if (!puid)
+               return False;
+
        /* Initialise request */
 
        ZERO_STRUCT(request);
@@ -90,13 +123,12 @@ BOOL winbind_lookup_sid(DOM_SID *sid, fstring dom_name, fstring name,
        
        /* Make request */
 
-       result = winbindd_request(WINBINDD_LOOKUPSID, &request, &response);
+       result = winbindd_request(WINBINDD_SID_TO_UID, &request, &response);
 
        /* Copy out result */
 
        if (result == NSS_STATUS_SUCCESS) {
-               parse_domain_user(response.data.name.name, dom_name, name);
-               *name_type = response.data.name.type;
+               *puid = response.data.uid;
        }
 
        return (result == NSS_STATUS_SUCCESS);
@@ -127,7 +159,8 @@ BOOL winbind_uid_to_sid(DOM_SID *sid, uid_t uid)
        /* Copy out result */
 
        if (result == NSS_STATUS_SUCCESS) {
-               string_to_sid(sid, response.data.sid.sid);
+               if (!string_to_sid(sid, response.data.sid.sid))
+                       return False;
        } else {
                sid_copy(sid, &global_sid_NULL);
        }
@@ -135,7 +168,110 @@ BOOL winbind_uid_to_sid(DOM_SID *sid, uid_t uid)
        return (result == NSS_STATUS_SUCCESS);
 }
 
-/* Call winbindd to convert uid to sid */
+/* Call winbindd to convert SID to uid. Do not allocate */
+
+BOOL winbind_sid_to_uid_query(uid_t *puid, const DOM_SID *sid)
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       int result;
+       fstring sid_str;
+
+       if (!puid)
+               return False;
+
+       /* Initialise request */
+
+       ZERO_STRUCT(request);
+       ZERO_STRUCT(response);
+
+       sid_to_string(sid_str, sid);
+       fstrcpy(request.data.sid, sid_str);
+
+       request.flags = WBFLAG_QUERY_ONLY;
+       
+       /* Make request */
+
+       result = winbindd_request(WINBINDD_SID_TO_UID, &request, &response);
+
+       /* Copy out result */
+
+       if (result == NSS_STATUS_SUCCESS) {
+               *puid = response.data.uid;
+       }
+
+       return (result == NSS_STATUS_SUCCESS);
+}
+
+/* Call winbindd to convert SID to gid */
+
+BOOL winbind_sid_to_gid(gid_t *pgid, const DOM_SID *sid)
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       int result;
+       fstring sid_str;
+
+       if (!pgid)
+               return False;
+
+       /* Initialise request */
+
+       ZERO_STRUCT(request);
+       ZERO_STRUCT(response);
+
+       sid_to_string(sid_str, sid);
+       fstrcpy(request.data.sid, sid_str);
+       
+       /* Make request */
+
+       result = winbindd_request(WINBINDD_SID_TO_GID, &request, &response);
+
+       /* Copy out result */
+
+       if (result == NSS_STATUS_SUCCESS) {
+               *pgid = response.data.gid;
+       }
+
+       return (result == NSS_STATUS_SUCCESS);
+}
+
+/* Call winbindd to convert SID to gid.  Do not allocate */
+
+BOOL winbind_sid_to_gid_query(gid_t *pgid, const DOM_SID *sid)
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       int result;
+       fstring sid_str;
+
+       if (!pgid)
+               return False;
+
+       /* Initialise request */
+
+       ZERO_STRUCT(request);
+       ZERO_STRUCT(response);
+
+       sid_to_string(sid_str, sid);
+       fstrcpy(request.data.sid, sid_str);
+       
+       request.flags = WBFLAG_QUERY_ONLY;
+
+       /* Make request */
+
+       result = winbindd_request(WINBINDD_SID_TO_GID, &request, &response);
+
+       /* Copy out result */
+
+       if (result == NSS_STATUS_SUCCESS) {
+               *pgid = response.data.gid;
+       }
+
+       return (result == NSS_STATUS_SUCCESS);
+}
+
+/* Call winbindd to convert gid to sid */
 
 BOOL winbind_gid_to_sid(DOM_SID *sid, gid_t gid)
 {
@@ -160,7 +296,8 @@ BOOL winbind_gid_to_sid(DOM_SID *sid, gid_t gid)
        /* Copy out result */
 
        if (result == NSS_STATUS_SUCCESS) {
-               string_to_sid(sid, response.data.sid.sid);
+               if (!string_to_sid(sid, response.data.sid.sid))
+                       return False;
        } else {
                sid_copy(sid, &global_sid_NULL);
        }
@@ -168,78 +305,209 @@ BOOL winbind_gid_to_sid(DOM_SID *sid, gid_t gid)
        return (result == NSS_STATUS_SUCCESS);
 }
 
+/* Fetch the list of groups a user is a member of from winbindd.  This is
+   used by winbind_getgroups. */
 
+static int wb_getgroups(const char *user, gid_t **groups)
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       int result;
 
-/*****************************************************************
- *THE CANNONICAL* convert name to SID function.
- Tries winbind first - then uses local lookup.
-*****************************************************************/  
+       /* Call winbindd */
 
-BOOL lookup_name(char *name, DOM_SID *psid, uint8 *name_type)
-{
-       extern pstring global_myname;
+       fstrcpy(request.data.username, user);
+
+       ZERO_STRUCT(response);
 
-       if (!winbind_lookup_name(name, psid, name_type)) {
+       result = winbindd_request(WINBINDD_GETGROUPS, &request, &response);
 
-               DEBUG(10,("lookup_name: winbind lookup for %s failed - trying local\n", name ));
+       if (result == NSS_STATUS_SUCCESS) {
+               
+               /* Return group list.  Don't forget to free the group list
+                  when finished. */
 
-               return local_lookup_name(global_myname, name, psid, name_type);
+               *groups = (gid_t *)response.extra_data;
+               return response.data.num_entries;
        }
-       return True;
+
+       return -1;
 }
 
-/*****************************************************************
- *THE CANNONICAL* convert SID to name function.
- Tries winbind first - then uses local lookup.
-*****************************************************************/  
+/* Return a list of groups the user is a member of.  This function is
+   useful for large systems where inverting the group database would be too
+   time consuming.  If size is zero, list is not modified and the total
+   number of groups for the user is returned. */
 
-BOOL lookup_sid(DOM_SID *sid, fstring dom_name, fstring name, uint8 *name_type)
+int winbind_getgroups(const char *user, gid_t **list)
 {
-       if (!winbind_lookup_sid(sid, dom_name, name, name_type)) {
-               fstring sid_str;
-               DOM_SID tmp_sid;
-               uint32 rid;
+       /*
+        * Don't do the lookup if the name has no separator _and_ we are not in
+        * 'winbind use default domain' mode.
+        */
 
-               DEBUG(10,("lookup_sid: winbind lookup for SID %s failed - trying local.\n", sid_to_string(sid_str, sid) ));
+       if (!(strchr(user, *lp_winbind_separator()) || lp_winbind_use_default_domain()))
+               return -1;
 
-               sid_copy(&tmp_sid, sid);
-               sid_split_rid(&tmp_sid, &rid);
-               return map_domain_sid_to_name(&tmp_sid, dom_name) &&
-                               lookup_known_rid(&tmp_sid, rid, name, name_type);
-       }
-       return True;
+       /* Fetch list of groups */
+
+       return wb_getgroups(user, list);
 }
 
-/*****************************************************************
- *THE CANNONICAL* convert uid_t to SID function.
- Tries winbind first - then uses local lookup.
- Returns SID pointer.
-*****************************************************************/  
+/**********************************************************************
+ simple wrapper function to see if winbindd is alive
+**********************************************************************/
 
-DOM_SID *uid_to_sid(DOM_SID *psid, uid_t uid)
+BOOL winbind_ping( void )
 {
-       if (!winbind_uid_to_sid(psid, uid)) {
-               DEBUG(10,("uid_to_sid: winbind lookup for uid %u failed - trying local.\n", (unsigned int)uid ));
+       NSS_STATUS result;
 
-               return local_uid_to_sid(psid, uid);
-       }
+       result = winbindd_request(WINBINDD_PING, NULL, NULL);
 
-       return psid;
+       return result == NSS_STATUS_SUCCESS;
 }
 
-/*****************************************************************
- *THE CANNONICAL* convert gid_t to SID function.
- Tries winbind first - then uses local lookup.
- Returns SID pointer.
-*****************************************************************/  
+/**********************************************************************
+ Ask winbindd to create a local user
+**********************************************************************/
 
-DOM_SID *gid_to_sid(DOM_SID *psid, gid_t gid)
+BOOL winbind_create_user( const char *name )
 {
-       if (!winbind_gid_to_sid(psid, gid)) {
-               DEBUG(10,("gid_to_sid: winbind lookup for gid %u failed - trying local.\n", (unsigned int)gid ));
+       struct winbindd_request request;
+       struct winbindd_response response;
+       NSS_STATUS result;
+       
+       if ( !lp_winbind_enable_local_accounts() )
+               return False;
+       
+       if ( !name )
+               return False;
+               
+       DEBUG(10,("winbind_create_user: %s\n", name));
 
-               return local_gid_to_sid(psid, gid);
-       }
+       fstrcpy( request.data.acct_mgt.username, name );
+       fstrcpy( request.data.acct_mgt.groupname, "" );
+       
+       ZERO_STRUCT(response);
+       
+       result = winbindd_request( WINBINDD_CREATE_USER, &request, &response);
+       
+       return result == NSS_STATUS_SUCCESS;
+}
+
+/**********************************************************************
+ Ask winbindd to create a local group
+**********************************************************************/
+
+BOOL winbind_create_group( const char *name )
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       NSS_STATUS result;
+       
+       if ( !lp_winbind_enable_local_accounts() )
+               return False;
+               
+       if ( !name )
+               return False;
+               
+       DEBUG(10,("winbind_create_group: %s\n", name));
 
-       return psid;
+       fstrcpy( request.data.acct_mgt.groupname, name );
+       
+       ZERO_STRUCT(response);
+       
+       result = winbindd_request( WINBINDD_CREATE_GROUP, &request, &response);
+       
+       return result == NSS_STATUS_SUCCESS;
+}
+
+/**********************************************************************
+ Ask winbindd to add a user to a local group
+**********************************************************************/
+
+BOOL winbind_add_user_to_group( const char *user, const char *group )
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       NSS_STATUS result;
+       
+       if ( !lp_winbind_enable_local_accounts() )
+               return False;
+               
+       if ( !user || !group )
+               return False;
+               
+       DEBUG(10,("winbind_add_user_to_group: user(%s), group(%s) \n", 
+               user, group));
+               
+       fstrcpy( request.data.acct_mgt.username, user );
+       fstrcpy( request.data.acct_mgt.groupname, group );
+       
+       ZERO_STRUCT(response);
+       
+       result = winbindd_request( WINBINDD_ADD_USER_TO_GROUP, &request, &response);
+       
+       return result == NSS_STATUS_SUCCESS;
+}
+
+/**********************************************************************
+ Ask winbindd to remove a user to a local group
+**********************************************************************/
+
+BOOL winbind_remove_user_from_group( const char *user, const char *group )
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       NSS_STATUS result;
+       
+       if ( !lp_winbind_enable_local_accounts() )
+               return False;
+               
+       if ( !user || !group )
+               return False;
+               
+       DEBUG(10,("winbind_remove_user_from_group: user(%s), group(%s) \n", 
+               user, group));
+               
+       fstrcpy( request.data.acct_mgt.username, user );
+       fstrcpy( request.data.acct_mgt.groupname, group );
+       
+       ZERO_STRUCT(response);
+       
+       result = winbindd_request( WINBINDD_REMOVE_USER_FROM_GROUP, &request, &response);
+       
+       return result == NSS_STATUS_SUCCESS;
 }
+
+/**********************************************************************
+ Ask winbindd to set the primary group for a user local user
+**********************************************************************/
+
+BOOL winbind_set_user_primary_group( const char *user, const char *group )
+{
+       struct winbindd_request request;
+       struct winbindd_response response;
+       NSS_STATUS result;
+       
+       if ( !lp_winbind_enable_local_accounts() )
+               return False;
+               
+       if ( !user || !group )
+               return False;
+               
+       DEBUG(10,("winbind_set_user_primary_group: user(%s), group(%s) \n", 
+               user, group));
+
+       fstrcpy( request.data.acct_mgt.username, user );
+       fstrcpy( request.data.acct_mgt.groupname, group );
+       
+       ZERO_STRUCT(response);
+       
+       result = winbindd_request( WINBINDD_SET_USER_PRIMARY_GROUP, &request, &response);
+       
+       return result == NSS_STATUS_SUCCESS;
+}
+
+
+