Privileges handling functions
Copyright (C) Jean François Micouleau 1998-2001
Copyright (C) Simo Sorce 2002-2003
+ Copyright (C) Gerald (Jerry) Carter 2004
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
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+
#include "includes.h"
-/* defines */
+#define PRIVPREFIX "PRIV_"
-#define ALLOC_CHECK(ptr, err, label, str) do { if ((ptr) == NULL) { DEBUG(0, ("%s: out of memory!\n", str)); err = NT_STATUS_NO_MEMORY; goto label; } } while(0)
-#define NTSTATUS_CHECK(err, label, str1, str2) do { if (!NT_STATUS_IS_OK(err)) { DEBUG(0, ("%s: %s failed!\n", str1, str2)); } } while(0)
+#define GENERATE_LUID_LOW(x) (x)+1;
-/****************************************************************************
- Check if a user is a mapped group.
-
- This function will check if the group SID is mapped onto a
- system managed gid or onto a winbind manged sid.
- In the first case it will be threated like a mapped group
- and the backend should take the member list with a getgrgid
- and ignore any user that have been possibly set into the group
- object.
-
- In the second case, the group is a fully SAM managed group
- served back to the system through winbind. In this case the
- members of a Local group are "unrolled" to cope with the fact
- that unix cannot contain groups inside groups.
- The backend MUST never call any getgr* / getpw* function or
- loops with winbind may happen.
- ****************************************************************************/
+static SE_PRIV se_priv_all = SE_ALL_PRIVS;
+static SE_PRIV se_priv_end = SE_END;
+static SE_PRIV se_priv_none = SE_NONE;
-#if 0
-NTSTATUS is_mapped_group(BOOL *mapped, const DOM_SID *sid)
-{
- NTSTATUS result;
- gid_t id;
-
- /* look if mapping exist, do not make idmap alloc an uid if SID is not found */
- result = idmap_get_gid_from_sid(&id, sid, False);
- if (NT_STATUS_IS_OK(result)) {
- *mapped = gid_is_in_winbind_range(id);
- } else {
- *mapped = False;
- }
- return result;
-}
-#endif
+#define ALLOC_CHECK(ptr, err, label, str) do { if ((ptr) == NULL) \
+ { DEBUG(0, ("%s: out of memory!\n", str)); err = NT_STATUS_NO_MEMORY; goto label; } } while(0)
+
+PRIVS privs[] = {
+ {SE_NETWORK_LOGON, "SeNetworkLogonRight", "Access this computer from the network"},
+ {SE_INTERACTIVE_LOGON, "SeInteractiveLogonRight", "Log on locally"},
+ {SE_BATCH_LOGON, "SeBatchLogonRight", "Log on as a batch job"},
+ {SE_SERVICE_LOGON, "SeServiceLogonRight", "Log on as a service"},
+
+ {SE_MACHINE_ACCOUNT, "SeMachineAccountPrivilege", "Add machines to domain"},
+ {SE_PRINT_OPERATOR, "SePrintOperatorPrivilege", "Printer Admin"},
+ {SE_ADD_USERS, "SeAddUsersPrivilege", "Add users and groups to the domain"},
+
+ {SE_END, "", ""}
+};
+
-/****************************************************************************
- duplicate alloc luid_attr
- ****************************************************************************/
-NTSTATUS dupalloc_luid_attr(TALLOC_CTX *mem_ctx, LUID_ATTR **new_la, LUID_ATTR *old_la)
-{
- NTSTATUS ret;
+#if 0 /* not needed currently */
+PRIVS privs[] = {
+ {SE_ASSIGN_PRIMARY_TOKEN, "SeAssignPrimaryTokenPrivilege", "Assign Primary Token"},
+ {SE_CREATE_TOKEN, "SeCreateTokenPrivilege", "Create Token"},
+ {SE_LOCK_MEMORY, "SeLockMemoryPrivilege", "Lock Memory"},
+ {SE_INCREASE_QUOTA, "SeIncreaseQuotaPrivilege", "Increase Quota"},
+ {SE_UNSOLICITED_INPUT, "SeUnsolicitedInputPrivilege", "Unsolicited Input"},
+ {SE_MACHINE_ACCOUNT, "SeMachineAccountPrivilege", "Can add Machine Accounts to the Domain"},
+ {SE_TCB, "SeTcbPrivilege", "Act as part of the operating system"},
+ {SE_SECURITY, "SeSecurityPrivilege", "Security Privilege"},
+ {SE_TAKE_OWNERSHIP, "SeTakeOwnershipPrivilege", "Take Ownership Privilege"},
+ {SE_LOAD_DRIVER, "SeLocalDriverPrivilege", "Local Driver Privilege"},
+ {SE_SYSTEM_PROFILE, "SeSystemProfilePrivilege", "System Profile Privilege"},
+ {SE_SYSTEM_TIME, "SeSystemtimePrivilege", "System Time"},
+ {SE_PROF_SINGLE_PROCESS, "SeProfileSingleProcessPrivilege", "Profile Single Process Privilege"},
+ {SE_INC_BASE_PRIORITY, "SeIncreaseBasePriorityPrivilege", "Increase Base Priority Privilege"},
+ {SE_CREATE_PAGEFILE, "SeCreatePagefilePrivilege", "Create Pagefile Privilege"},
+ {SE_CREATE_PERMANENT, "SeCreatePermanentPrivilege", "Create Permanent"},
+ {SE_BACKUP, "SeBackupPrivilege", "Backup Privilege"},
+ {SE_RESTORE, "SeRestorePrivilege", "Restore Privilege"},
+ {SE_SHUTDOWN, "SeShutdownPrivilege", "Shutdown Privilege"},
+ {SE_DEBUG, "SeDebugPrivilege", "Debug Privilege"},
+ {SE_AUDIT, "SeAuditPrivilege", "Audit"},
+ {SE_SYSTEM_ENVIRONMENT, "SeSystemEnvironmentPrivilege", "System Environment Privilege"},
+ {SE_CHANGE_NOTIFY, "SeChangeNotifyPrivilege", "Change Notify"},
+ {SE_REMOTE_SHUTDOWN, "SeRemoteShutdownPrivilege", "Remote Shutdown Privilege"},
+ {SE_UNDOCK, "SeUndockPrivilege", "Undock"},
+ {SE_SYNC_AGENT, "SeSynchronizationAgentPrivilege", "Synchronization Agent"},
+ {SE_ENABLE_DELEGATION, "SeEnableDelegationPrivilege", "Enable Delegation"},
+ {SE_PRINT_OPERATOR, "SePrintOperatorPrivilege", "Printer Operator"},
+ {SE_ADD_USERS, "SeAddUsersPrivilege", "Add Users"},
+ {SE_ALL_PRIVS, "SeAllPrivileges", "All Privileges"}
+ {SE_END, "", ""}
+};
+#endif
- /* don't crash if the source pointer is NULL (since we don't
- do priviledges now anyways) */
+typedef struct priv_sid_list {
+ SE_PRIV privilege;
+ SID_LIST sids;
+} PRIV_SID_LIST;
- if ( !old_la )
- return NT_STATUS_OK;
- *new_la = (LUID_ATTR *)talloc(mem_ctx, sizeof(LUID_ATTR));
- ALLOC_CHECK(new_la, ret, done, "dupalloc_luid_attr");
+/***************************************************************************
+ copy an SE_PRIV structure
+****************************************************************************/
- (*new_la)->luid.high = old_la->luid.high;
- (*new_la)->luid.low = old_la->luid.low;
- (*new_la)->attr = old_la->attr;
+BOOL se_priv_copy( SE_PRIV *dst, SE_PRIV *src )
+{
+ if ( !dst || !src )
+ return False;
+
+ memcpy( dst, src, sizeof(SE_PRIV) );
- ret = NT_STATUS_OK;
-
-done:
- return ret;
+ return True;
}
-/****************************************************************************
- initialise a privilege list
- ****************************************************************************/
-NTSTATUS init_privilege(PRIVILEGE_SET **priv_set)
+/***************************************************************************
+ combine 2 SE_PRIV structures and store the resulting set in mew_mask
+****************************************************************************/
+
+static void se_priv_add( SE_PRIV *mask, SE_PRIV *addpriv )
{
- NTSTATUS ret;
- TALLOC_CTX *mem_ctx = talloc_init("privilege set");
- ALLOC_CHECK(mem_ctx, ret, done, "init_privilege");
+ int i;
- *priv_set = talloc_zero(mem_ctx, sizeof(PRIVILEGE_SET));
- ALLOC_CHECK(*priv_set, ret, done, "init_privilege");
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ mask->mask[i] |= addpriv->mask[i];
+ }
+}
- (*priv_set)->mem_ctx = mem_ctx;
+/***************************************************************************
+ remove one SE_PRIV sytucture from another and store the resulting set
+ in mew_mask
+****************************************************************************/
- ret = NT_STATUS_OK;
+static void se_priv_remove( SE_PRIV *mask, SE_PRIV *removepriv )
+{
+ int i;
-done:
- return ret;
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ mask->mask[i] &= ~removepriv->mask[i];
+ }
+}
+
+/***************************************************************************
+ invert a given SE_PRIV and store the set in new_mask
+****************************************************************************/
+
+static void se_priv_invert( SE_PRIV *new_mask, SE_PRIV *mask )
+{
+ SE_PRIV allprivs;
+
+ se_priv_copy( &allprivs, &se_priv_all );
+ se_priv_remove( &allprivs, mask );
+ se_priv_copy( new_mask, &allprivs );
}
-NTSTATUS init_priv_with_ctx(TALLOC_CTX *mem_ctx, PRIVILEGE_SET **priv_set)
+/***************************************************************************
+ check if 2 SE_PRIV structure are equal
+****************************************************************************/
+
+static BOOL se_priv_equal( SE_PRIV *mask1, SE_PRIV *mask2 )
+{
+ return ( memcmp(mask1, mask2, sizeof(SE_PRIV)) == 0 );
+}
+
+
+/***************************************************************************
+ dump an SE_PRIV structure to the log files
+****************************************************************************/
+
+void dump_se_priv( int dbg_cl, int dbg_lvl, SE_PRIV *mask )
{
- NTSTATUS ret;
+ int i;
+
+ DEBUGADDC( dbg_cl, dbg_lvl,("SE_PRIV "));
+
+ for ( i=0; i<SE_PRIV_MASKSIZE; i++ ) {
+ DEBUGADDC( dbg_cl, dbg_lvl,(" 0x%x", mask->mask[i] ));
+ }
+
+ DEBUGADDC( dbg_cl, dbg_lvl, ("\n"));
+}
- *priv_set = talloc_zero(mem_ctx, sizeof(PRIVILEGE_SET));
- ALLOC_CHECK(*priv_set, ret, done, "init_privilege");
+/***************************************************************************
+ Retrieve the privilege mask (set) for a given SID
+****************************************************************************/
- (*priv_set)->mem_ctx = mem_ctx;
- (*priv_set)->ext_ctx = True;
+static BOOL get_privileges( const DOM_SID *sid, SE_PRIV *mask )
+{
+ TDB_CONTEXT *tdb = get_account_pol_tdb();
+ fstring keystr;
+ TDB_DATA key, data;
+
+ if ( !tdb )
+ return False;
- ret = NT_STATUS_OK;
+ /* PRIV_<SID> (NULL terminated) as the key */
+
+ fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
+ key.dptr = keystr;
+ key.dsize = strlen(keystr) + 1;
-done:
- return ret;
+ data = tdb_fetch( tdb, key );
+
+ if ( !data.dptr ) {
+ DEBUG(3,("get_privileges: No privileges assigned to SID [%s]\n",
+ sid_string_static(sid)));
+ return False;
+ }
+
+ SMB_ASSERT( data.dsize == sizeof( SE_PRIV ) );
+
+ se_priv_copy( mask, (SE_PRIV*)data.dptr );
+
+ return True;
}
-void reset_privilege(PRIVILEGE_SET *priv_set)
+/***************************************************************************
+ Store the privilege mask (set) for a given SID
+****************************************************************************/
+
+static BOOL set_privileges( const DOM_SID *sid, SE_PRIV *mask )
{
- priv_set->count = 0;
- priv_set->control = 0;
- priv_set->set = NULL;
+ TDB_CONTEXT *tdb = get_account_pol_tdb();
+ fstring keystr;
+ TDB_DATA key, data;
+
+ if ( !tdb )
+ return False;
+
+ /* PRIV_<SID> (NULL terminated) as the key */
+
+ fstr_sprintf( keystr, "%s%s", PRIVPREFIX, sid_string_static(sid) );
+ key.dptr = keystr;
+ key.dsize = strlen(keystr) + 1;
+
+ /* no packing. static size structure, just write it out */
+
+ data.dptr = (char*)mask;
+ data.dsize = sizeof(SE_PRIV);
+
+ return ( tdb_store(tdb, key, data, TDB_REPLACE) != -1 );
}
-void destroy_privilege(PRIVILEGE_SET **priv_set)
+/****************************************************************************
+ check if the privilege is in the privilege list
+****************************************************************************/
+
+static BOOL is_privilege_assigned( SE_PRIV *privileges, SE_PRIV *check )
{
- reset_privilege(*priv_set);
- if (!((*priv_set)->ext_ctx))
- /* mem_ctx is local, destroy it */
- talloc_destroy((*priv_set)->mem_ctx);
- *priv_set = NULL;
+ SE_PRIV p1, p2;
+
+ if ( !privileges || !check )
+ return False;
+
+ se_priv_copy( &p1, check );
+
+ /* invert the SE_PRIV we want to check for and remove that from the
+ original set. If we are left with the SE_PRIV we are checking
+ for then return True */
+
+ se_priv_invert( &p1, check );
+ se_priv_copy( &p2, privileges );
+ se_priv_remove( &p2, &p1 );
+
+ return se_priv_equal( &p2, check );
}
/****************************************************************************
add a privilege to a privilege array
****************************************************************************/
-NTSTATUS add_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
+
+static BOOL privilege_set_add(PRIVILEGE_SET *priv_set, LUID_ATTR set)
{
- NTSTATUS ret;
LUID_ATTR *new_set;
- /* check if the privilege is not already in the list */
- if (NT_STATUS_IS_OK(check_priv_in_privilege(priv_set, set)))
- return NT_STATUS_UNSUCCESSFUL;
-
/* we can allocate memory to add the new privilege */
- new_set = (LUID_ATTR *)talloc_realloc(priv_set->mem_ctx, priv_set->set, (priv_set->count + 1) * (sizeof(LUID_ATTR)));
- ALLOC_CHECK(new_set, ret, done, "add_privilege");
+ new_set = TALLOC_REALLOC_ARRAY(priv_set->mem_ctx, priv_set->set, LUID_ATTR, priv_set->count + 1);
+ if ( !new_set ) {
+ DEBUG(0,("privilege_set_add: failed to allocate memory!\n"));
+ return False;
+ }
new_set[priv_set->count].luid.high = set.luid.high;
new_set[priv_set->count].luid.low = set.luid.low;
priv_set->count++;
priv_set->set = new_set;
- ret = NT_STATUS_OK;
-
-done:
- return ret;
+ return True;
}
-/****************************************************************************
- add all the privileges to a privilege array
- ****************************************************************************/
-NTSTATUS add_all_privilege(PRIVILEGE_SET *priv_set)
+/*********************************************************************
+ Generate the LUID_ATTR structure based on a bitmask
+*********************************************************************/
+
+LUID_ATTR get_privilege_luid( SE_PRIV *mask )
{
- NTSTATUS result = NT_STATUS_OK;
- LUID_ATTR set;
+ LUID_ATTR priv_luid;
+ int i;
- set.attr = 0;
- set.luid.high = 0;
+ priv_luid.attr = 0;
+ priv_luid.luid.high = 0;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+
+ /* just use the index+1 (so its non-zero) into the
+ array as the lower portion of the LUID */
+
+ if ( se_priv_equal( &privs[i].se_priv, mask ) ) {
+ priv_luid.luid.low = GENERATE_LUID_LOW(i);
+ }
+ }
- /* TODO: set a proper list of privileges */
- set.luid.low = SE_PRIV_ADD_USERS;
- result = add_privilege(priv_set, set);
- NTSTATUS_CHECK(result, done, "add_all_privilege", "add_privilege");
+ return priv_luid;
+}
- set.luid.low = SE_PRIV_ADD_MACHINES;
- result = add_privilege(priv_set, set);
- NTSTATUS_CHECK(result, done, "add_all_privilege", "add_privilege");
+/*********************************************************************
+ Generate the LUID_ATTR structure based on a bitmask
+*********************************************************************/
- set.luid.low = SE_PRIV_PRINT_OPERATOR;
- result = add_privilege(priv_set, set);
- NTSTATUS_CHECK(result, done, "add_all_privilege", "add_privilege");
+const char* get_privilege_dispname( const char *name )
+{
+ int i;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+
+ if ( strequal( privs[i].name, name ) ) {
+ return privs[i].description;
+ }
+ }
- return result;
+ return NULL;
}
-/****************************************************************************
- check if the privilege list is empty
- ****************************************************************************/
-NTSTATUS check_empty_privilege(PRIVILEGE_SET *priv_set)
+/*********************************************************************
+ get a list of all privleges for all sids the in list
+*********************************************************************/
+
+BOOL get_privileges_for_sids(SE_PRIV *privileges, DOM_SID *slist, int scount)
{
- if (!priv_set)
- return NT_STATUS_INVALID_PARAMETER;
+ SE_PRIV mask;
+ int i;
+ BOOL found = False;
- if (priv_set->count == 0)
- return NT_STATUS_OK;
+ se_priv_copy( privileges, &se_priv_none );
+
+ 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 );
+ found = True;
+ }
- return NT_STATUS_UNSUCCESSFUL;
+ return found;
}
-/****************************************************************************
- check if the privilege is in the privilege list
- ****************************************************************************/
-NTSTATUS check_priv_in_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
+
+/*********************************************************************
+ travseral functions for privilege_enumerate_accounts
+*********************************************************************/
+
+static int priv_traverse_fn(TDB_CONTEXT *t, TDB_DATA key, TDB_DATA data, void *state)
{
- int i;
+ PRIV_SID_LIST *priv = state;
+ int prefixlen = strlen(PRIVPREFIX);
+ DOM_SID sid;
+ fstring sid_string;
+
+ /* easy check first */
+
+ if ( data.dsize != sizeof(SE_PRIV) )
+ return 0;
- if (!priv_set)
- return NT_STATUS_INVALID_PARAMETER;
+ /* check we have a PRIV_+SID entry */
- /* if the list is empty, obviously we can't have it */
- if (NT_STATUS_IS_OK(check_empty_privilege(priv_set)))
- return NT_STATUS_UNSUCCESSFUL;
+ if ( strncmp(key.dptr, PRIVPREFIX, prefixlen) != 0)
+ return 0;
+
+ /* check to see if we are looking for a particular privilege */
- for (i = 0; i < priv_set->count; i++) {
- LUID_ATTR *cur_set;
+ 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
+ then just return */
+
+ if ( !is_privilege_assigned( &mask, &priv->privilege) )
+ return 0;
+ }
+
+ fstrcpy( sid_string, &key.dptr[strlen(PRIVPREFIX)] );
- cur_set = &priv_set->set[i];
- /* check only the low and high part. Checking the attr field has no meaning */
- if ( (cur_set->luid.low == set.luid.low) &&
- (cur_set->luid.high == set.luid.high) ) {
- return NT_STATUS_OK;
- }
+ if ( !string_to_sid(&sid, sid_string) ) {
+ DEBUG(0,("travsersal_fn_enum__acct: Could not convert SID [%s]\n",
+ sid_string));
+ return 0;
}
- return NT_STATUS_UNSUCCESSFUL;
+ add_sid_to_array( &sid, &priv->sids.list, &priv->sids.count );
+
+ return 0;
}
-/****************************************************************************
- remove a privilege from a privilege array
- ****************************************************************************/
-NTSTATUS remove_privilege(PRIVILEGE_SET *priv_set, LUID_ATTR set)
+/*********************************************************************
+ Retreive list of privileged SIDs (for _lsa_enumerate_accounts()
+*********************************************************************/
+
+NTSTATUS privilege_enumerate_accounts(DOM_SID **sids, int *num_sids)
{
- NTSTATUS ret;
- LUID_ATTR *new_set;
- LUID_ATTR *old_set;
- int i,j;
+ TDB_CONTEXT *tdb = get_account_pol_tdb();
+ PRIV_SID_LIST priv;
+
+ ZERO_STRUCT(priv);
- if (!priv_set)
- return NT_STATUS_INVALID_PARAMETER;
+ se_priv_copy( &priv.privilege, &se_priv_none );
- /* check if the privilege is in the list */
- if (!NT_STATUS_IS_OK(check_priv_in_privilege(priv_set, set)))
- return NT_STATUS_UNSUCCESSFUL;
+ tdb_traverse( tdb, priv_traverse_fn, &priv);
- /* special case if it's the only privilege in the list */
- if (priv_set->count == 1) {
- reset_privilege(priv_set);
- return NT_STATUS_OK;
- }
+ /* give the memory away; caller will free */
+
+ *sids = priv.sids.list;
+ *num_sids = priv.sids.count;
- /*
- * the privilege is there, create a new list,
- * and copy the other privileges
- */
+ return NT_STATUS_OK;
+}
- old_set = priv_set->set;
+#if 0 /* JERRY - not used */
+/***************************************************************************
+ Retrieve the SIDs assigned to a given privilege
+****************************************************************************/
- new_set = (LUID_ATTR *)talloc(priv_set->mem_ctx, (priv_set->count - 1) * (sizeof(LUID_ATTR)));
- ALLOC_CHECK(new_set, ret, done, "remove_privilege");
+ NTSTATUS priv_get_sids(const char *privname, DOM_SID **sids, int *num_sids)
+{
+ TDB_CONTEXT *tdb = get_account_pol_tdb();
+ PRIV_SID_LIST priv;
+
+ ZERO_STRUCT(priv);
- for (i=0, j=0; i < priv_set->count; i++) {
- if ( (old_set[i].luid.low == set.luid.low) &&
- (old_set[i].luid.high == set.luid.high) ) {
- continue;
- }
-
- new_set[j].luid.low = old_set[i].luid.low;
- new_set[j].luid.high = old_set[i].luid.high;
- new_set[j].attr = old_set[i].attr;
+ tdb_traverse( tdb, priv_traverse_fn, &priv);
- j++;
- }
+ /* give the memory away; caller will free */
- if (j != priv_set->count - 1) {
- DEBUG(0,("remove_privilege: mismatch ! difference is not -1\n"));
- DEBUGADD(0,("old count:%d, new count:%d\n", priv_set->count, j));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- /* ok everything is fine */
+ *sids = priv.sids.list;
+ *num_sids = priv.sids.count;
+
+ return NT_STATUS_OK;
+}
+#endif
+
+/***************************************************************************
+ Add privilege to sid
+****************************************************************************/
+
+BOOL grant_privilege(const DOM_SID *sid, SE_PRIV *priv_mask)
+{
+ SE_PRIV old_mask, new_mask;
- priv_set->count--;
- priv_set->set = new_set;
+ if ( get_privileges( sid, &old_mask ) )
+ se_priv_copy( &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 );
+}
+
+/*********************************************************************
+ Add a privilege based on its name
+*********************************************************************/
+
+BOOL grant_privilege_by_name(DOM_SID *sid, const char *name)
+{
+ int i;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( strequal(privs[i].name, name) ) {
+ return grant_privilege( sid, &privs[i].se_priv );
+ }
+ }
+
+ DEBUG(3, ("grant_privilege_by_name: No Such Privilege Found (%s)\n", name));
+
+ return False;
+}
+
+/***************************************************************************
+ Remove privilege from sid
+****************************************************************************/
+
+BOOL revoke_privilege(const DOM_SID *sid, SE_PRIV *priv_mask)
+{
+ SE_PRIV 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 );
+}
+
+/*********************************************************************
+ Revoke all privileges
+*********************************************************************/
+
+BOOL revoke_all_privileges( DOM_SID *sid )
+{
+ return revoke_privilege( sid, &se_priv_all );
+}
+
+/*********************************************************************
+ Add a privilege based on its name
+*********************************************************************/
+
+BOOL revoke_privilege_by_name(DOM_SID *sid, const char *name)
+{
+ int i;
+
+ for ( i=0; !se_priv_equal(&privs[i].se_priv, &se_priv_end); i++ ) {
+ if ( strequal(privs[i].name, name) ) {
+ return revoke_privilege( sid, &privs[i].se_priv );
+ }
+ }
+
+ DEBUG(3, ("revoke_privilege_by_name: No Such Privilege Found (%s)\n", name));
+
+ return False;
+}
+
+/***************************************************************************
+ 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)
+{
+ NTSTATUS ret;
+ TALLOC_CTX *mem_ctx;
+
+ ZERO_STRUCTP( priv_set );
+
+ mem_ctx = talloc_init("privilege set");
+ ALLOC_CHECK(mem_ctx, ret, done, "init_privilege");
+
+ priv_set->mem_ctx = mem_ctx;
+
ret = NT_STATUS_OK;
done:
}
/****************************************************************************
- duplicates a privilege array
- the new privilege set must be passed inited
- (use init_privilege or init_priv_with_ctx)
+ 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)
+{
+ ZERO_STRUCTP( priv_set );
+
+ priv_set->mem_ctx = mem_ctx;
+ priv_set->ext_ctx = True;
+
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Free all memory used by a PRIVILEGE_SET
+****************************************************************************/
+
+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_priv_set(PRIVILEGE_SET *new_priv_set, PRIVILEGE_SET *priv_set)
+
+NTSTATUS dup_luid_attr(TALLOC_CTX *mem_ctx, LUID_ATTR **new_la, LUID_ATTR *old_la, int count)
{
NTSTATUS ret;
- LUID_ATTR *new_set;
- LUID_ATTR *old_set;
int i;
- if (!new_priv_set || !priv_set)
- return NT_STATUS_INVALID_PARAMETER;
+ /* don't crash if the source pointer is NULL (since we don't
+ do priviledges now anyways) */
- /* special case if there are no privileges in the list */
- if (priv_set->count == 0) {
+ if ( !old_la )
return NT_STATUS_OK;
+
+ *new_la = TALLOC_ARRAY(mem_ctx, LUID_ATTR, count);
+ ALLOC_CHECK(new_la, ret, done, "dupalloc_luid_attr");
+
+ 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;
}
+
+ ret = NT_STATUS_OK;
+
+done:
+ return ret;
+}
+
+#if 0 /* not used */
+/****************************************************************************
+ Performa deep copy of a PRIVILEGE_SET structure. Assumes an initialized
+ destination structure.
+*****************************************************************************/
+
+ BOOL dup_privilege_set( PRIVILEGE_SET *dest, PRIVILEGE_SET *src )
+{
+ NTSTATUS result;
+
+ if ( !dest || !src )
+ return False;
+
+ result = dup_luid_attr( dest->mem_ctx, &dest->set, src->set, src->count );
+ if ( !NT_STATUS_IS_OK(result) ) {
+ DEBUG(0,("dup_privilege_set: Failed to dup LUID_ATTR array [%s]\n",
+ nt_errstr(result) ));
+ return False;
+ }
+
+ dest->control = src->control;
+ dest->count = src->count;
+
+ return True;
+}
+#endif
+
+/****************************************************************************
+ Does the user have the specified privilege ? We only deal with one privilege
+ at a time here.
+*****************************************************************************/
+
+BOOL user_has_privileges(NT_USER_TOKEN *token, SE_PRIV *privilege)
+{
+ return is_privilege_assigned( &token->privileges, privilege );
+}
+
+/****************************************************************************
+ Convert a LUID to a named string
+****************************************************************************/
+
+char* luid_to_privilege_name(const LUID *set)
+{
+ static fstring name;
+ int max = count_all_privileges();
+
+ if (set->high != 0)
+ return NULL;
+
+ if ( set->low > max )
+ return NULL;
+
+ fstrcpy( name, privs[set->low - 1].name );
+
+ return name;
+}
+
+/****************************************************************************
+ Convert an LUID to a 32-bit mask
+****************************************************************************/
+
+SE_PRIV* luid_to_privilege_mask(const LUID *set)
+{
+ static SE_PRIV mask;
+ int max = count_all_privileges();
+
+ if (set->high != 0)
+ return NULL;
- /*
- * create a new list,
- * and copy the other privileges
- */
+ if ( set->low > max )
+ return NULL;
- old_set = priv_set->set;
+ se_priv_copy( &mask, &privs[set->low - 1].se_priv );
- new_set = (LUID_ATTR *)talloc(new_priv_set->mem_ctx, (priv_set->count - 1) * (sizeof(LUID_ATTR)));
- ALLOC_CHECK(new_set, ret, done, "dup_priv_set");
+ return &mask;
+}
+
+/*******************************************************************
+ return the number of elements in the privlege array
+*******************************************************************/
+
+int count_all_privileges( void )
+{
+ static int count;
+
+ if ( count )
+ return count;
- for (i=0; i < priv_set->count; i++) {
+ /* loop over the array and count it */
+ for ( count=0; !se_priv_equal(&privs[count].se_priv, &se_priv_end); count++ ) ;
+
+ return count;
+}
+
+#if 0 /* not used */
+/*******************************************************************
+ return True is the SID has an entry in the account_pol.tdb
+*******************************************************************/
+
+ BOOL is_privileged_sid( DOM_SID *sid )
+{
+ SE_PRIV mask;
+
+ /* check if the lookup succeeds */
+
+ return get_privileges( sid, &mask );
+}
+#endif
+
+/*******************************************************************
+*******************************************************************/
+
+BOOL se_priv_to_privilege_set( PRIVILEGE_SET *set, SE_PRIV *mask )
+{
+ int i;
+ uint32 num_privs = count_all_privileges();
+ LUID_ATTR luid;
+
+ luid.attr = 0;
+ luid.luid.high = 0;
+
+ for ( i=0; i<num_privs; i++ ) {
+ if ( !is_privilege_assigned(mask, &privs[i].se_priv) )
+ continue;
+
+ luid.luid.low = GENERATE_LUID_LOW(i);
- new_set[i].luid.low = old_set[i].luid.low;
- new_set[i].luid.high = old_set[i].luid.high;
- new_set[i].attr = old_set[i].attr;
+ if ( !privilege_set_add( set, luid ) )
+ return False;
}
-
- new_priv_set->count = priv_set->count;
- new_priv_set->control = priv_set->control;
- new_priv_set->set = new_set;
+
+ return True;
+}
+
+/*******************************************************************
+*******************************************************************/
+
+BOOL privilege_set_to_se_priv( SE_PRIV *mask, PRIVILEGE_SET *privset )
+{
+ int i;
+ uint32 num_privs = count_all_privileges();
- ret = NT_STATUS_OK;
+ ZERO_STRUCTP( mask );
+
+ for ( i=0; i<privset->count; i++ ) {
+ SE_PRIV r;
+
+ /* sanity check for invalid privilege. we really
+ only care about the low 32 bits */
+
+ if ( privset->set[i].luid.high != 0 )
+ return False;
+
+ /* make sure :LUID.low is in range */
+ if ( privset->set[i].luid.low == 0 || privset->set[i].luid.low > num_privs )
+ return False;
+
+ r = privs[privset->set[i].luid.low - 1].se_priv;
+ se_priv_add( mask, &r );
+ }
-done:
- return ret;
+ return True;
}
+
git.samba.org / samba.git / blobdiff