Rev 5345: auth/auth_util2.c renamed to auth/token_util.c in
Volker's checkin in
http://samba.sernet.de/ma/bzr/SAMBA_3_0-registry.bzr/
Michael Adam
ma at sernet.de
Tue Apr 10 10:50:09 GMT 2007
At http://samba.sernet.de/ma/bzr/SAMBA_3_0-registry.bzr/
------------------------------------------------------------
revno: 5345
revision-id: ma at sernet.de-20070410105002-8ca543eecefafbc4
parent: ma at sernet.de-20070410103722-a2ae212eac5cc568
committer: Michael Adam <ma at sernet.de>
branch nick: SAMBA_3_0-registry.bzr
timestamp: Tue 2007-04-10 12:50:02 +0200
message:
auth/auth_util2.c renamed to auth/token_util.c in Volker's checkin
removed:
source/auth/auth_util2.c auth_util2.c-20070228112535-wzq0qzh7l78m6o3o-1
=== removed file 'source/auth/auth_util2.c'
--- a/source/auth/auth_util2.c 2007-02-28 11:58:58 +0000
+++ b/source/auth/auth_util2.c 1970-01-01 00:00:00 +0000
@@ -1,459 +0,0 @@
-/*
- * Unix SMB/CIFS implementation.
- * Authentication utility functions
- * Copyright (C) Andrew Tridgell 1992-1998
- * Copyright (C) Andrew Bartlett 2001
- * Copyright (C) Jeremy Allison 2000-2001
- * Copyright (C) Rafal Szczesniak 2002
- * Copyright (C) Volker Lendecke 2006
- * Copyright (C) Michael Adam 2007
- *
- * 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
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * 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.
- */
-
-/* functions moved from auth/auth_util.c to minimize linker deps */
-
-#include "includes.h"
-
-/****************************************************************************
- Duplicate a SID token.
-****************************************************************************/
-
-NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, const NT_USER_TOKEN *ptoken)
-{
- NT_USER_TOKEN *token;
-
- if (!ptoken)
- return NULL;
-
- token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
- if (token == NULL) {
- DEBUG(0, ("talloc failed\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(token);
-
- if (ptoken->user_sids && ptoken->num_sids) {
- token->user_sids = (DOM_SID *)talloc_memdup(
- token, ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
-
- if (token->user_sids == NULL) {
- DEBUG(0, ("talloc_memdup failed\n"));
- TALLOC_FREE(token);
- return NULL;
- }
- token->num_sids = ptoken->num_sids;
- }
-
- /* copy the privileges; don't consider failure to be critical here */
-
- if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
- DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. "
- "Continuing with 0 privileges assigned.\n"));
- }
-
- return token;
-}
-
-/****************************************************************************
- Check for a SID in an NT_USER_TOKEN
-****************************************************************************/
-
-BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
-{
- int i;
-
- if ( !sid || !token )
- return False;
-
- for ( i=0; i<token->num_sids; i++ ) {
- if ( sid_equal( sid, &token->user_sids[i] ) )
- return True;
- }
-
- return False;
-}
-
-BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
-{
- DOM_SID domain_sid;
-
- /* if we are a domain member, the get the domain SID, else for
- a DC or standalone server, use our own SID */
-
- if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
- if ( !secrets_fetch_domain_sid( lp_workgroup(),
- &domain_sid ) ) {
- DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
- "SID for domain [%s]\n", lp_workgroup()));
- return False;
- }
- }
- else
- sid_copy( &domain_sid, get_global_sam_sid() );
-
- sid_append_rid( &domain_sid, rid );
-
- return nt_token_check_sid( &domain_sid, token );\
-}
-
-/******************************************************************************
- Create a token for the root user to be used internally by smbd.
- This is similar to running under the context of the LOCAL_SYSTEM account
- in Windows. This is a read-only token. Do not modify it or free() it.
- Create a copy if your need to change it.
-******************************************************************************/
-
-NT_USER_TOKEN *get_root_nt_token( void )
-{
- static NT_USER_TOKEN *token = NULL;
- DOM_SID u_sid, g_sid;
- struct passwd *pw;
-
- if ( token )
- return token;
-
- if ( !(pw = sys_getpwnam( "root" )) ) {
- DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
- return NULL;
- }
-
- /* get the user and primary group SIDs; although the
- BUILTIN\Administrators SId is really the one that matters here */
-
- uid_to_sid(&u_sid, pw->pw_uid);
- gid_to_sid(&g_sid, pw->pw_gid);
-
- token = create_local_nt_token(NULL, &u_sid, False,
- 1, &global_sid_Builtin_Administrators);
- return token;
-}
-
-
-/*
- * Add alias SIDs from memberships within the partially created token SID list
- */
-
-static NTSTATUS add_aliases(const DOM_SID *domain_sid,
- struct nt_user_token *token)
-{
- uint32 *aliases;
- size_t i, num_aliases;
- NTSTATUS status;
- TALLOC_CTX *tmp_ctx;
-
- if (!(tmp_ctx = talloc_init("add_aliases"))) {
- return NT_STATUS_NO_MEMORY;
- }
-
- aliases = NULL;
- num_aliases = 0;
-
- status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
- token->user_sids,
- token->num_sids,
- &aliases, &num_aliases);
-
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
- nt_errstr(status)));
- TALLOC_FREE(tmp_ctx);
- return status;
- }
-
- for (i=0; i<num_aliases; i++) {
- DOM_SID alias_sid;
- sid_compose(&alias_sid, domain_sid, aliases[i]);
- if (!add_sid_to_array_unique(token, &alias_sid,
- &token->user_sids,
- &token->num_sids)) {
- DEBUG(0, ("add_sid_to_array failed\n"));
- TALLOC_FREE(tmp_ctx);
- return NT_STATUS_NO_MEMORY;
- }
- }
-
- TALLOC_FREE(tmp_ctx);
- return NT_STATUS_OK;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS add_builtin_administrators( struct nt_user_token *token )
-{
- DOM_SID domadm;
-
- /* nothing to do if we aren't in a domain */
-
- if ( !(IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER) ) {
- return NT_STATUS_OK;
- }
-
- /* Find the Domain Admins SID */
-
- if ( IS_DC ) {
- sid_copy( &domadm, get_global_sam_sid() );
- } else {
- if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
- return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
- }
- sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
-
- /* Add Administrators if the user beloongs to Domain Admins */
-
- if ( nt_token_check_sid( &domadm, token ) ) {
- if (!add_sid_to_array(token, &global_sid_Builtin_Administrators,
- &token->user_sids, &token->num_sids)) {
- return NT_STATUS_NO_MEMORY;
- }
- }
-
- return NT_STATUS_OK;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS create_builtin_users( void )
-{
- NTSTATUS status;
- DOM_SID dom_users;
-
- status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(0,("create_builtin_users: Failed to create Users\n"));
- return status;
- }
-
- /* add domain users */
- if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
- && secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
- {
- sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
- status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(0,("create_builtin_administrators: Failed to add Domain Users to"
- " Users\n"));
- return status;
- }
- }
-
- return NT_STATUS_OK;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-static NTSTATUS create_builtin_administrators( void )
-{
- NTSTATUS status;
- DOM_SID dom_admins, root_sid;
- fstring root_name;
- enum lsa_SidType type;
- TALLOC_CTX *ctx;
- BOOL ret;
-
- status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
- return status;
- }
-
- /* add domain admins */
- if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
- && secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
- {
- sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
- status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
- " Administrators\n"));
- return status;
- }
- }
-
- /* add root */
- if ( (ctx = talloc_init("create_builtin_administrators")) == NULL ) {
- return NT_STATUS_NO_MEMORY;
- }
- fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
- ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
- TALLOC_FREE( ctx );
-
- if ( ret ) {
- status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(0,("create_builtin_administrators: Failed to add root"
- " Administrators\n"));
- return status;
- }
- }
-
- return NT_STATUS_OK;
-}
-
-
-/*******************************************************************
- Create a NT token for the user, expanding local aliases
-*******************************************************************/
-
-/* static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx, */
-struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
- const DOM_SID *user_sid,
- BOOL is_guest,
- int num_groupsids,
- const DOM_SID *groupsids)
-{
- struct nt_user_token *result = NULL;
- int i;
- NTSTATUS status;
- gid_t gid;
-
- DEBUG(10, ("Create local NT token for %s\n", sid_string_static(user_sid)));
-
- if (!(result = TALLOC_ZERO_P(mem_ctx, NT_USER_TOKEN))) {
- DEBUG(0, ("talloc failed\n"));
- return NULL;
- }
-
- /* Add the user and primary group sid */
-
- if (!add_sid_to_array(result, user_sid,
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
-
- /* For guest, num_groupsids may be zero. */
- if (num_groupsids) {
- if (!add_sid_to_array(result, &groupsids[0],
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
- }
-
- /* Add in BUILTIN sids */
-
- if (!add_sid_to_array(result, &global_sid_World,
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
- if (!add_sid_to_array(result, &global_sid_Network,
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
-
- if (is_guest) {
- if (!add_sid_to_array(result, &global_sid_Builtin_Guests,
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
- } else {
- if (!add_sid_to_array(result, &global_sid_Authenticated_Users,
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
- }
-
- /* Now the SIDs we got from authentication. These are the ones from
- * the info3 struct or from the pdb_enum_group_memberships, depending
- * on who authenticated the user.
- * Note that we start the for loop at "1" here, we already added the
- * first group sid as primary above. */
-
- for (i=1; i<num_groupsids; i++) {
- if (!add_sid_to_array_unique(result, &groupsids[i],
- &result->user_sids, &result->num_sids)) {
- return NULL;
- }
- }
-
- /* Deal with the BUILTIN\Administrators group. If the SID can
- be resolved then assume that the add_aliasmem( S-1-5-32 )
- handled it. */
-
- if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
- /* We can only create a mapping if winbind is running
- and the nested group functionality has been enabled */
-
- if ( lp_winbind_nested_groups() && winbind_ping() ) {
- become_root();
- status = create_builtin_administrators( );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
- /* don't fail, just log the message */
- }
- unbecome_root();
- }
- else {
- status = add_builtin_administrators( result );
- if ( !NT_STATUS_IS_OK(status) ) {
- /* just log a complaint but do not fail */
- DEBUG(3,("create_local_nt_token: failed to check for local Administrators"
- " membership (%s)\n", nt_errstr(status)));
- }
- }
- }
-
- /* Deal with the BUILTIN\Users group. If the SID can
- be resolved then assume that the add_aliasmem( S-1-5-32 )
- handled it. */
-
- if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
- /* We can only create a mapping if winbind is running
- and the nested group functionality has been enabled */
-
- if ( lp_winbind_nested_groups() && winbind_ping() ) {
- become_root();
- status = create_builtin_users( );
- if ( !NT_STATUS_IS_OK(status) ) {
- DEBUG(2,("create_local_nt_token: Failed to create BUILTIN\\Users group!\n"));
- /* don't fail, just log the message */
- }
- unbecome_root();
- }
- }
-
- /* Deal with local groups */
-
- if (lp_winbind_nested_groups()) {
-
- /* Now add the aliases. First the one from our local SAM */
-
- status = add_aliases(get_global_sam_sid(), result);
-
- if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(result);
- return NULL;
- }
-
- /* Finally the builtin ones */
-
- status = add_aliases(&global_sid_Builtin, result);
-
- if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(result);
- return NULL;
- }
- }
-
-
- get_privileges_for_sids(&result->privileges, result->user_sids,
- result->num_sids);
- return result;
-}
-
-/* END */
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