Copyright (C) Simo Sorce 2002-2003
Copyright (C) Gerald (Jerry) Carter 2005
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 3 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, see <http://www.gnu.org/licenses/>.
*/
-
+
#include "includes.h"
+#include "lib/privileges.h"
+#include "dbwrap/dbwrap.h"
+#include "libcli/security/privileges_private.h"
+#include "../libcli/security/security.h"
+#include "passdb.h"
#define PRIVPREFIX "PRIV_"
typedef struct {
- size_t count;
- DOM_SID *list;
+ uint32_t count;
+ struct dom_sid *list;
} SID_LIST;
typedef struct {
TALLOC_CTX *mem_ctx;
- SE_PRIV privilege;
+ uint64_t privilege;
SID_LIST sids;
} PRIV_SID_LIST;
+/*
+ interpret an old style SE_PRIV structure
+ */
+static uint64_t map_old_SE_PRIV(unsigned char *dptr)
+{
+ uint32_t *old_masks = (uint32_t *)dptr;
+ /*
+ * the old privileges code only ever used up to 0x800, except
+ * for a special case of 'SE_ALL_PRIVS' which was 0xFFFFFFFF
+ */
+ if (old_masks[0] == 0xFFFFFFFF) {
+ /* they set all privileges */
+ return SE_ALL_PRIVS;
+ }
-static bool get_privileges( const DOM_SID *sid, SE_PRIV *mask )
+ /* the old code used the machine byte order, but we don't know
+ * the byte order of the machine that wrote it. However we can
+ * tell what byte order it was by taking advantage of the fact
+ * that it only ever use up to 0x800
+ */
+ if (dptr[0] || dptr[1]) {
+ /* it was little endian */
+ return IVAL(dptr, 0);
+ }
+
+ /* it was either zero or big-endian */
+ return RIVAL(dptr, 0);
+}
+
+
+static bool get_privileges( const struct dom_sid *sid, uint64_t *mask )
{
- TDB_CONTEXT *tdb = get_account_pol_tdb();
- fstring keystr;
+ struct db_context *db = get_account_pol_db();
+ fstring tmp, keystr;
TDB_DATA data;
+ NTSTATUS status;
/* Fail if the admin has not enable privileges */
-
+
if ( !lp_enable_privileges() ) {
return False;
}
-
- if ( !tdb )
+
+ if ( db == NULL )
return False;
/* PRIV_<SID> (NULL terminated) as the key */
-
- fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
-
- data = tdb_fetch_bystring( tdb, keystr );
-
- if ( !data.dptr ) {
- DEBUG(3,("get_privileges: No privileges assigned to SID [%s]\n",
- sid_string_static(sid)));
+
+ fstr_sprintf(keystr, "%s%s", PRIVPREFIX, sid_to_fstring(tmp, sid));
+
+ status = dbwrap_fetch_bystring(db, talloc_tos(), keystr, &data);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(4, ("get_privileges: No privileges assigned to SID "
+ "[%s]\n", sid_string_dbg(sid)));
return False;
}
-
- SMB_ASSERT( data.dsize == sizeof( SE_PRIV ) );
-
- se_priv_copy( mask, (SE_PRIV*)data.dptr );
- SAFE_FREE(data.dptr);
+
+ if (data.dsize == 4*4) {
+ /* it's an old style SE_PRIV structure. */
+ *mask = map_old_SE_PRIV(data.dptr);
+ } else {
+ if (data.dsize != sizeof( uint64_t ) ) {
+ DEBUG(3, ("get_privileges: Invalid privileges record assigned to SID "
+ "[%s]\n", sid_string_dbg(sid)));
+ return False;
+ }
+
+ *mask = BVAL(data.dptr, 0);
+ }
+
+ TALLOC_FREE(data.dptr);
return True;
}
Store the privilege mask (set) for a given SID
****************************************************************************/
-static bool set_privileges( const DOM_SID *sid, SE_PRIV *mask )
+static bool set_privileges( const struct dom_sid *sid, uint64_t mask )
{
- TDB_CONTEXT *tdb = get_account_pol_tdb();
- fstring keystr;
+ struct db_context *db = get_account_pol_db();
+ uint8_t privbuf[8];
+ fstring tmp, keystr;
TDB_DATA data;
-
+
if ( !lp_enable_privileges() )
return False;
- if ( !tdb )
+ if ( db == NULL )
return False;
if ( !sid || (sid->num_auths == 0) ) {
}
/* PRIV_<SID> (NULL terminated) as the key */
-
- fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
-
- /* no packing. static size structure, just write it out */
-
- data.dptr = (uint8 *)mask;
- data.dsize = sizeof(SE_PRIV);
-
- return ( tdb_store_bystring(tdb, keystr, data, TDB_REPLACE) != -1 );
+
+ fstr_sprintf(keystr, "%s%s", PRIVPREFIX, sid_to_fstring(tmp, sid));
+
+ /* This writes the 64 bit bitmask out in little endian format */
+ SBVAL(privbuf,0,mask);
+
+ data.dptr = privbuf;
+ data.dsize = sizeof(privbuf);
+
+ return NT_STATUS_IS_OK(dbwrap_store_bystring(db, keystr, data,
+ TDB_REPLACE));
}
/*********************************************************************
get a list of all privileges for all sids in the list
*********************************************************************/
-bool get_privileges_for_sids(SE_PRIV *privileges, DOM_SID *slist, int scount)
+bool get_privileges_for_sids(uint64_t *privileges, struct dom_sid *slist, int scount)
{
- SE_PRIV mask;
+ uint64_t mask;
int i;
bool found = False;
- se_priv_copy( privileges, &se_priv_none );
-
+ *privileges = 0;
+
for ( i=0; i<scount; i++ ) {
/* don't add unless we actually have a privilege assigned */
if ( !get_privileges( &slist[i], &mask ) )
continue;
- DEBUG(5,("get_privileges_for_sids: sid = %s\nPrivilege set:\n",
- sid_string_static(&slist[i])));
- dump_se_priv( DBGC_ALL, 5, &mask );
-
- se_priv_add( privileges, &mask );
+ DEBUG(5,("get_privileges_for_sids: sid = %s\nPrivilege "
+ "set: 0x%llx\n", sid_string_dbg(&slist[i]),
+ (unsigned long long)mask));
+
+ *privileges |= mask;
found = True;
}
return found;
}
+NTSTATUS get_privileges_for_sid_as_set(TALLOC_CTX *mem_ctx, PRIVILEGE_SET **privileges, struct dom_sid *sid)
+{
+ uint64_t mask;
+ if (!get_privileges(sid, &mask)) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ *privileges = talloc_zero(mem_ctx, PRIVILEGE_SET);
+ if (!*privileges) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!se_priv_to_privilege_set(*privileges, mask)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+}
/*********************************************************************
- travseral functions for privilege_enumerate_accounts
+ traversal functions for privilege_enumerate_accounts
*********************************************************************/
-static int priv_traverse_fn(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void *state)
+static int priv_traverse_fn(struct db_record *rec, void *state)
{
PRIV_SID_LIST *priv = (PRIV_SID_LIST *)state;
int prefixlen = strlen(PRIVPREFIX);
- DOM_SID sid;
+ struct dom_sid sid;
fstring sid_string;
-
- /* easy check first */
-
- if ( data.dsize != sizeof(SE_PRIV) )
- return 0;
+ TDB_DATA key;
+
+ key = dbwrap_record_get_key(rec);
/* check we have a PRIV_+SID entry */
- if ( strncmp((const char *)key.dptr, PRIVPREFIX, prefixlen) != 0)
+ if (strncmp((char *)key.dptr, PRIVPREFIX, prefixlen) != 0)
return 0;
-
+
/* check to see if we are looking for a particular privilege */
- if ( !se_priv_equal(&priv->privilege, &se_priv_none) ) {
- SE_PRIV mask;
-
- se_priv_copy( &mask, (SE_PRIV*)data.dptr );
-
- /* if the SID does not have the specified privilege
+ fstrcpy( sid_string, (char *)&(key.dptr[strlen(PRIVPREFIX)]) );
+
+ if (priv->privilege != 0) {
+ uint64_t mask;
+ TDB_DATA value;
+
+ value = dbwrap_record_get_value(rec);
+
+ if (value.dsize == 4*4) {
+ mask = map_old_SE_PRIV(value.dptr);
+ } else {
+ if (value.dsize != sizeof( uint64_t ) ) {
+ DEBUG(3, ("get_privileges: Invalid privileges record assigned to SID "
+ "[%s]\n", sid_string));
+ return 0;
+ }
+ mask = BVAL(value.dptr, 0);
+ }
+
+ /* if the SID does not have the specified privilege
then just return */
-
- if ( !is_privilege_assigned( &mask, &priv->privilege) )
+
+ if ((mask & priv->privilege) == 0) {
return 0;
+ }
}
-
- fstrcpy( sid_string, (const char *)&key.dptr[strlen(PRIVPREFIX)] );
/* this is a last ditch safety check to preventing returning
and invalid SID (i've somehow run into this on development branches) */
return 0;
}
- if (!add_sid_to_array( priv->mem_ctx, &sid, &priv->sids.list,
- &priv->sids.count )) {
+ if (!NT_STATUS_IS_OK(add_sid_to_array(priv->mem_ctx, &sid,
+ &priv->sids.list,
+ &priv->sids.count)))
+ {
return 0;
}
-
+
return 0;
}
Retreive list of privileged SIDs (for _lsa_enumerate_accounts()
*********************************************************************/
-NTSTATUS privilege_enumerate_accounts(DOM_SID **sids, int *num_sids)
+NTSTATUS privilege_enumerate_accounts(struct dom_sid **sids, int *num_sids)
{
- TDB_CONTEXT *tdb = get_account_pol_tdb();
+ struct db_context *db = get_account_pol_db();
PRIV_SID_LIST priv;
-
- if (!tdb) {
+ NTSTATUS status;
+
+ if (db == NULL) {
return NT_STATUS_ACCESS_DENIED;
}
ZERO_STRUCT(priv);
- se_priv_copy( &priv.privilege, &se_priv_none );
-
- tdb_traverse( tdb, priv_traverse_fn, &priv);
+ status = dbwrap_traverse_read(db, priv_traverse_fn, &priv, NULL);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
/* give the memory away; caller will free */
-
+
*sids = priv.sids.list;
*num_sids = priv.sids.count;
Retrieve list of SIDs granted a particular privilege
*********************************************************************/
-NTSTATUS privilege_enum_sids(const SE_PRIV *mask, TALLOC_CTX *mem_ctx,
- DOM_SID **sids, int *num_sids)
+NTSTATUS privilege_enum_sids(enum sec_privilege privilege, TALLOC_CTX *mem_ctx,
+ struct dom_sid **sids, int *num_sids)
{
- TDB_CONTEXT *tdb = get_account_pol_tdb();
+ struct db_context *db = get_account_pol_db();
PRIV_SID_LIST priv;
+ NTSTATUS status;
- if (!tdb) {
+ if (db == NULL) {
return NT_STATUS_ACCESS_DENIED;
}
ZERO_STRUCT(priv);
- se_priv_copy(&priv.privilege, mask);
+ priv.privilege = sec_privilege_mask(privilege);
priv.mem_ctx = mem_ctx;
- tdb_traverse( tdb, priv_traverse_fn, &priv);
+ status = dbwrap_traverse_read(db, priv_traverse_fn, &priv, NULL);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
/* give the memory away; caller will free */
Add privilege to sid
****************************************************************************/
-bool grant_privilege(const DOM_SID *sid, const SE_PRIV *priv_mask)
+static bool grant_privilege_bitmap(const struct dom_sid *sid, const uint64_t priv_mask)
{
- SE_PRIV old_mask, new_mask;
-
+ uint64_t old_mask, new_mask;
+
ZERO_STRUCT( old_mask );
ZERO_STRUCT( new_mask );
if ( get_privileges( sid, &old_mask ) )
- se_priv_copy( &new_mask, &old_mask );
+ new_mask = old_mask;
else
- se_priv_copy( &new_mask, &se_priv_none );
-
- se_priv_add( &new_mask, priv_mask );
-
- DEBUG(10,("grant_privilege: %s\n", sid_string_static(sid)));
-
- DEBUGADD( 10, ("original privilege mask:\n"));
- dump_se_priv( DBGC_ALL, 10, &old_mask );
-
- DEBUGADD( 10, ("new privilege mask:\n"));
- dump_se_priv( DBGC_ALL, 10, &new_mask );
-
- return set_privileges( sid, &new_mask );
+ new_mask = 0;
+
+ new_mask |= priv_mask;
+
+ DEBUG(10,("grant_privilege: %s\n", sid_string_dbg(sid)));
+
+ DEBUGADD( 10, ("original privilege mask: 0x%llx\n", (unsigned long long)new_mask));
+
+ DEBUGADD( 10, ("new privilege mask: 0x%llx\n", (unsigned long long)new_mask));
+
+ return set_privileges( sid, new_mask );
}
/*********************************************************************
Add a privilege based on its name
*********************************************************************/
-bool grant_privilege_by_name(DOM_SID *sid, const char *name)
+bool grant_privilege_by_name(const struct dom_sid *sid, const char *name)
{
- SE_PRIV mask;
+ uint64_t mask;
if (! se_priv_from_name(name, &mask)) {
DEBUG(3, ("grant_privilege_by_name: "
return False;
}
- return grant_privilege( sid, &mask );
+ return grant_privilege_bitmap( sid, mask );
+}
+
+/***************************************************************************
+ Grant a privilege set (list of LUID values) from a sid
+****************************************************************************/
+
+bool grant_privilege_set(const struct dom_sid *sid, struct lsa_PrivilegeSet *set)
+{
+ uint64_t privilege_mask;
+ if (!privilege_set_to_se_priv(&privilege_mask, set)) {
+ return false;
+ }
+ return grant_privilege_bitmap(sid, privilege_mask);
}
/***************************************************************************
Remove privilege from sid
****************************************************************************/
-bool revoke_privilege(const DOM_SID *sid, const SE_PRIV *priv_mask)
+static bool revoke_privilege_bitmap(const struct dom_sid *sid, const uint64_t priv_mask)
{
- SE_PRIV mask;
-
+ uint64_t mask;
+
/* if the user has no privileges, then we can't revoke any */
-
+
if ( !get_privileges( sid, &mask ) )
return True;
-
- DEBUG(10,("revoke_privilege: %s\n", sid_string_static(sid)));
-
- DEBUGADD( 10, ("original privilege mask:\n"));
- dump_se_priv( DBGC_ALL, 10, &mask );
-
- se_priv_remove( &mask, priv_mask );
-
- DEBUGADD( 10, ("new privilege mask:\n"));
- dump_se_priv( DBGC_ALL, 10, &mask );
-
- return set_privileges( sid, &mask );
+
+ DEBUG(10,("revoke_privilege: %s\n", sid_string_dbg(sid)));
+
+ DEBUGADD( 10, ("original privilege mask: 0x%llx\n", (unsigned long long)mask));
+
+ mask &= ~priv_mask;
+
+ DEBUGADD( 10, ("new privilege mask: 0x%llx\n", (unsigned long long)mask));
+
+ return set_privileges( sid, mask );
+}
+
+/***************************************************************************
+ Remove a privilege set (list of LUID values) from a sid
+****************************************************************************/
+
+bool revoke_privilege_set(const struct dom_sid *sid, struct lsa_PrivilegeSet *set)
+{
+ uint64_t privilege_mask;
+ if (!privilege_set_to_se_priv(&privilege_mask, set)) {
+ return false;
+ }
+ return revoke_privilege_bitmap(sid, privilege_mask);
}
/*********************************************************************
Revoke all privileges
*********************************************************************/
-bool revoke_all_privileges( DOM_SID *sid )
+bool revoke_all_privileges( const struct dom_sid *sid )
{
- return revoke_privilege( sid, &se_priv_all );
+ return revoke_privilege_bitmap( sid, SE_ALL_PRIVS);
}
/*********************************************************************
Add a privilege based on its name
*********************************************************************/
-bool revoke_privilege_by_name(DOM_SID *sid, const char *name)
+bool revoke_privilege_by_name(const struct dom_sid *sid, const char *name)
{
- SE_PRIV mask;
+ uint64_t mask;
if (! se_priv_from_name(name, &mask)) {
DEBUG(3, ("revoke_privilege_by_name: "
return False;
}
- return revoke_privilege(sid, &mask);
+ return revoke_privilege_bitmap(sid, mask);
}
Retrieve the SIDs assigned to a given privilege
****************************************************************************/
-NTSTATUS privilege_create_account(const DOM_SID *sid )
-{
- return ( grant_privilege(sid, &se_priv_none) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL);
-}
-
-/****************************************************************************
- initialise a privilege list and set the talloc context
- ****************************************************************************/
-
-NTSTATUS privilege_set_init(PRIVILEGE_SET *priv_set)
-{
- TALLOC_CTX *mem_ctx;
-
- ZERO_STRUCTP( priv_set );
-
- mem_ctx = talloc_init("privilege set");
- if ( !mem_ctx ) {
- DEBUG(0,("privilege_set_init: failed to initialize talloc ctx!\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- priv_set->mem_ctx = mem_ctx;
-
- return NT_STATUS_OK;
-}
-
-/****************************************************************************
- initialise a privilege list and with someone else's talloc context
-****************************************************************************/
-
-NTSTATUS privilege_set_init_by_ctx(TALLOC_CTX *mem_ctx, PRIVILEGE_SET *priv_set)
+NTSTATUS privilege_create_account(const struct dom_sid *sid )
{
- ZERO_STRUCTP( priv_set );
-
- priv_set->mem_ctx = mem_ctx;
- priv_set->ext_ctx = True;
-
- return NT_STATUS_OK;
+ return ( grant_privilege_bitmap(sid, 0) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL);
}
-/****************************************************************************
- Free all memory used by a PRIVILEGE_SET
+/***************************************************************************
+ Delete a privileged account
****************************************************************************/
-void privilege_set_free(PRIVILEGE_SET *priv_set)
-{
- if ( !priv_set )
- return;
-
- if ( !( priv_set->ext_ctx ) )
- talloc_destroy( priv_set->mem_ctx );
-
- ZERO_STRUCTP( priv_set );
-}
-
-/****************************************************************************
- duplicate alloc luid_attr
- ****************************************************************************/
-
-NTSTATUS dup_luid_attr(TALLOC_CTX *mem_ctx, LUID_ATTR **new_la, LUID_ATTR *old_la, int count)
+NTSTATUS privilege_delete_account(const struct dom_sid *sid)
{
- int i;
+ struct db_context *db = get_account_pol_db();
+ fstring tmp, keystr;
- if ( !old_la )
+ if (!lp_enable_privileges()) {
return NT_STATUS_OK;
+ }
- if (count) {
- *new_la = TALLOC_ARRAY(mem_ctx, LUID_ATTR, count);
- if ( !*new_la ) {
- DEBUG(0,("dup_luid_attr: failed to alloc new LUID_ATTR array [%d]\n", count));
- return NT_STATUS_NO_MEMORY;
- }
- } else {
- *new_la = NULL;
+ if (!db) {
+ return NT_STATUS_INVALID_HANDLE;
}
- for (i=0; i<count; i++) {
- (*new_la)[i].luid.high = old_la[i].luid.high;
- (*new_la)[i].luid.low = old_la[i].luid.low;
- (*new_la)[i].attr = old_la[i].attr;
+ if (!sid || (sid->num_auths == 0)) {
+ return NT_STATUS_INVALID_SID;
}
-
- return NT_STATUS_OK;
+
+ /* PRIV_<SID> (NULL terminated) as the key */
+
+ fstr_sprintf(keystr, "%s%s", PRIVPREFIX, sid_to_fstring(tmp, sid));
+
+ return dbwrap_delete_bystring(db, keystr);
}
/*******************************************************************
*******************************************************************/
-bool is_privileged_sid( const DOM_SID *sid )
+bool is_privileged_sid( const struct dom_sid *sid )
{
- SE_PRIV mask;
-
+ uint64_t mask;
+
return get_privileges( sid, &mask );
}
/*******************************************************************
*******************************************************************/
-bool grant_all_privileges( const DOM_SID *sid )
+bool grant_all_privileges( const struct dom_sid *sid )
{
- SE_PRIV mask;
+ uint64_t mask;
- if (!se_priv_put_all_privileges(&mask)) {
- return False;
- }
-
- return grant_privilege( sid, &mask );
+ se_priv_put_all_privileges(&mask);
+
+ return grant_privilege_bitmap( sid, mask );
}
git.samba.org / nivanova / samba-autobuild / .git / blobdiff