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authorGünther Deschner <gd@samba.org>2005-01-22 03:37:09 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 10:55:08 -0500
commitb4afdc08d5336e4a337e453443d7af1d8655a31a (patch)
tree3d2e3351c4e767cbd05006b349006bb427ed3ec1 /source3/lib
parent686ceda3c3d3510f873d44c7bbb89d9134e0cf88 (diff)
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r4925: Migrate Account Policies to passdb (esp. replicating ldapsam).
Does automated migration from account_policy.tdb v1 and v2 and offers a pdbedit-Migration interface. Jerry, please feel free to revert that if you have other plans. Guenther (This used to be commit 75af83dfcd8ef365b4b1180453060ae5176389f5)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/account_pol.c424
-rw-r--r--source3/lib/smbldap.c88
2 files changed, 412 insertions, 100 deletions
diff --git a/source3/lib/account_pol.c b/source3/lib/account_pol.c
index 5997d9180a..b81a9fe34d 100644
--- a/source3/lib/account_pol.c
+++ b/source3/lib/account_pol.c
@@ -3,6 +3,7 @@
* account policy storage
* Copyright (C) Jean François Micouleau 1998-2001.
* Copyright (C) Andrew Bartlett 2002
+ * Copyright (C) Guenther Deschner 2004-2005
*
* 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
@@ -22,7 +23,14 @@
#include "includes.h"
static TDB_CONTEXT *tdb;
-#define DATABASE_VERSION 2
+/* cache all entries for 60 seconds for to save ldap-queries (cache is updated
+ * after this period if admins do not use pdbedit or usermanager but manipulate
+ * ldap directly) - gd */
+
+#define DATABASE_VERSION 3
+#define AP_LASTSET "LAST_CACHE_UPDATE"
+#define AP_MIGRATED "ACCOUNT POLICIES WERE MIGRATED TO PASSDB"
+#define AP_TTL 60
extern DOM_SID global_sid_World;
extern DOM_SID global_sid_Builtin_Administrators;
@@ -32,100 +40,35 @@ extern DOM_SID global_sid_Builtin_Print_Operators;
extern DOM_SID global_sid_Builtin_Backup_Operators;
-/****************************************************************************
- Set default for a field if it is empty
-****************************************************************************/
-
-static void set_default_on_empty(int field, uint32 value)
-{
- if (account_policy_get(field, NULL))
- return;
- account_policy_set(field, value);
- return;
-}
-
-/****************************************************************************
- Open the account policy tdb.
-****************************************************************************/
-
-BOOL init_account_policy(void)
-{
- const char *vstring = "INFO/version";
- uint32 version;
-
- if (tdb)
- return True;
- tdb = tdb_open_log(lock_path("account_policy.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
- if (!tdb) {
- DEBUG(0,("Failed to open account policy database\n"));
- return False;
- }
-
- /* handle a Samba upgrade */
- tdb_lock_bystring(tdb, vstring,0);
- if (!tdb_fetch_uint32(tdb, vstring, &version) || version != DATABASE_VERSION) {
- tdb_store_uint32(tdb, vstring, DATABASE_VERSION);
-
- set_default_on_empty(
- AP_MIN_PASSWORD_LEN,
- MINPASSWDLENGTH);/* 5 chars minimum */
- set_default_on_empty(
- AP_PASSWORD_HISTORY,
- 0); /* don't keep any old password */
- set_default_on_empty(
- AP_USER_MUST_LOGON_TO_CHG_PASS,
- 0); /* don't force user to logon */
- set_default_on_empty(
- AP_MAX_PASSWORD_AGE,
- (uint32)-1); /* don't expire */
- set_default_on_empty(
- AP_MIN_PASSWORD_AGE,
- 0); /* 0 days */
- set_default_on_empty(
- AP_LOCK_ACCOUNT_DURATION,
- 30); /* lockout for 30 minutes */
- set_default_on_empty(
- AP_RESET_COUNT_TIME,
- 30); /* reset after 30 minutes */
- set_default_on_empty(
- AP_BAD_ATTEMPT_LOCKOUT,
- 0); /* don't lockout */
- set_default_on_empty(
- AP_TIME_TO_LOGOUT,
- -1); /* don't force logout */
- set_default_on_empty(
- AP_REFUSE_MACHINE_PW_CHANGE,
- 0); /* allow machine pw changes */
- }
- tdb_unlock_bystring(tdb, vstring);
-
- /* These exist by default on NT4 in [HKLM\SECURITY\Policy\Accounts] */
-
- privilege_create_account( &global_sid_World );
- privilege_create_account( &global_sid_Builtin_Administrators );
- privilege_create_account( &global_sid_Builtin_Account_Operators );
- privilege_create_account( &global_sid_Builtin_Server_Operators );
- privilege_create_account( &global_sid_Builtin_Print_Operators );
- privilege_create_account( &global_sid_Builtin_Backup_Operators );
-
- return True;
-}
-
-static const struct {
+struct ap_table {
int field;
const char *string;
-} account_policy_names[] = {
- {AP_MIN_PASSWORD_LEN, "min password length"},
- {AP_PASSWORD_HISTORY, "password history"},
- {AP_USER_MUST_LOGON_TO_CHG_PASS, "user must logon to change password"},
- {AP_MAX_PASSWORD_AGE, "maximum password age (seconds since 1970)"},
- {AP_MIN_PASSWORD_AGE,"minimum password age (seconds since 1970)"},
- {AP_LOCK_ACCOUNT_DURATION, "lockout duration"},
- {AP_RESET_COUNT_TIME, "reset count minutes"},
- {AP_BAD_ATTEMPT_LOCKOUT, "bad lockout attempt"},
- {AP_TIME_TO_LOGOUT, "disconnect time"},
- {AP_REFUSE_MACHINE_PW_CHANGE, "refuse machine password change"},
- {0, NULL}
+ uint32 default_val;
+ const char *comment;
+};
+
+static const struct ap_table account_policy_names[] = {
+ {AP_MIN_PASSWORD_LEN, "min password length", MINPASSWDLENGTH,
+ "Minimal password length (default: 5)"},
+ {AP_PASSWORD_HISTORY, "password history", 0,
+ "Length of Password History Entries (default: 0 => off)" },
+ {AP_USER_MUST_LOGON_TO_CHG_PASS, "user must logon to change password", 0,
+ "Force Users to logon for password change (default: 0 => off, 2 => on)"},
+ {AP_MAX_PASSWORD_AGE, "maximum password age", (uint32)-1,
+ "Maximum password age, in seconds (default: -1 => never expire passwords)"},
+ {AP_MIN_PASSWORD_AGE,"minimum password age", 0,
+ "Minimal password age, in seconds (default: 0 => allow immediate password change)"},
+ {AP_LOCK_ACCOUNT_DURATION, "lockout duration", 30,
+ "Lockout duration in minutes (default: 30, -1 => forever)"},
+ {AP_RESET_COUNT_TIME, "reset count minutes", 30,
+ "Reset time after lockout in minutes (default: 30)"},
+ {AP_BAD_ATTEMPT_LOCKOUT, "bad lockout attempt", 0,
+ "Lockout users after bad logon attempts (default: 0 => off)"},
+ {AP_TIME_TO_LOGOUT, "disconnect time", -1,
+ "Disconnect Users outside logon hours (default: -1 => off, 0 => on)"},
+ {AP_REFUSE_MACHINE_PW_CHANGE, "refuse machine password change", 0,
+ "Allow Machine Password changes (default: 0 => off)"},
+ {0, NULL, 0, ""}
};
char *account_policy_names_list(void)
@@ -156,7 +99,7 @@ char *account_policy_names_list(void)
Get the account policy name as a string from its #define'ed number
****************************************************************************/
-static const char *decode_account_policy_name(int field)
+const char *decode_account_policy_name(int field)
{
int i;
for (i=0; account_policy_names[i].string; i++) {
@@ -168,6 +111,21 @@ static const char *decode_account_policy_name(int field)
}
/****************************************************************************
+Get the account policy comment as a string from its #define'ed number
+****************************************************************************/
+
+const char *account_policy_get_comment(int field)
+{
+ int i;
+ for (i=0; account_policy_names[i].string; i++) {
+ if (field == account_policy_names[i].field)
+ return account_policy_names[i].comment;
+ }
+ return NULL;
+
+}
+
+/****************************************************************************
Get the account policy name as a string from its #define'ed number
****************************************************************************/
@@ -182,15 +140,222 @@ int account_policy_name_to_fieldnum(const char *name)
}
-/****************************************************************************
-****************************************************************************/
+/*****************************************************************************
+Update LAST-Set counter inside the cache
+*****************************************************************************/
+
+static BOOL account_policy_cache_timestamp(uint32 *value, BOOL update)
+{
+ pstring key;
+ uint32 val = 0;
+ time_t now;
+
+ slprintf(key, sizeof(key)-1, "%s", AP_LASTSET);
+
+ if (!init_account_policy())
+ return False;
+
+ if (!tdb_fetch_uint32(tdb, key, &val) && !update) {
+ DEBUG(10,("failed to get last set timestamp of cache\n"));
+ return False;
+ }
+
+ *value = val;
+
+ DEBUG(10, ("account policy cache lastset was: %s\n", http_timestring(val)));
+
+ if (update) {
+
+ now = time(NULL);
+
+ if (!tdb_store_uint32(tdb, key, (uint32)now)) {
+ DEBUG(1, ("tdb_store_uint32 failed for %s\n", key));
+ return False;
+ }
+ DEBUG(10, ("account policy cache lastset now: %s\n", http_timestring(now)));
+ *value = now;
+ }
+
+ return True;
+}
+
+/*****************************************************************************
+Get default value for account policy
+*****************************************************************************/
+
+BOOL account_policy_get_default(int account_policy, uint32 *val)
+{
+ int i;
+ for (i=0; account_policy_names[i].field; i++) {
+ if (account_policy_names[i].field == account_policy) {
+ *val = account_policy_names[i].default_val;
+ return True;
+ }
+ }
+ DEBUG(0,("no default for account_policy index %d found. This should never happen\n",
+ account_policy));
+ return False;
+}
+
+/*****************************************************************************
+ Set default for a field if it is empty
+*****************************************************************************/
+
+static BOOL account_policy_set_default_on_empty(int account_policy)
+{
+
+ uint32 value;
+
+ if (!account_policy_get(account_policy, &value) &&
+ !account_policy_get_default(account_policy, &value)) {
+ return False;
+ }
+
+ return account_policy_set(account_policy, value);
+}
+
+/*****************************************************************************
+Check migration success, set marker if required
+*****************************************************************************/
+
+static BOOL already_migrated_account_policies(BOOL store_migration_success)
+{
+ pstring key;
+ uint32 value;
+
+ slprintf(key, sizeof(key)-1, "%s", AP_MIGRATED);
+
+ if (tdb_fetch_uint32(tdb, key, &value)) {
+ return True;
+ }
+
+ if (store_migration_success) {
+
+ if (!tdb_store_uint32(tdb, key, 1)) {
+ DEBUG(1, ("tdb_store_uint32 failed for %s\n", key));
+ return False;
+ }
+ return True;
+ }
+
+ return False;
+}
+
+/*****************************************************************************
+Migrate account policies to passdb
+*****************************************************************************/
+
+static BOOL migrate_account_policy_names_to_passdb(void)
+{
+ int i, tmp_val;
+ BOOL got_pol;
+
+ if (already_migrated_account_policies(False)) {
+ return True;
+ }
+
+ DEBUG(1,("start migrating account policies into passdb\n"));
+
+ for (i=1; decode_account_policy_name(i) != NULL; i++) {
+
+ got_pol = False;
+
+ if (pdb_get_account_policy(i, &tmp_val)) {
+ DEBUG(10,("account policy already in passdb\n"));
+ got_pol = True;
+ }
+
+ if (!got_pol && !account_policy_get(i, &tmp_val)) {
+ DEBUG(0,("very weird: could not get value for account policy\n"));
+ return False;
+ }
+
+ DEBUGADD(1,("\tmigrating account policy (#%d: %s with value: %d) to passdb\n",
+ i, (char *)decode_account_policy_name(i), tmp_val));
+
+ /* set policy via new passdb api */
+ if (!pdb_set_account_policy(i, tmp_val)) {
+ DEBUG(0,("failed to set account_policy\n"));
+ return False;
+ }
+
+ }
+
+ if (!already_migrated_account_policies(True)) {
+ DEBUG(0,("could not store marker for account policy migration in the tdb\n"));
+ return False;
+ }
+
+ DEBUGADD(1,("succesfully migrated account policies into passdb\n"));
+
+ return True;
+}
+
+/*****************************************************************************
+ Open the account policy tdb.
+***`*************************************************************************/
+
+BOOL init_account_policy(void)
+{
+
+ const char *vstring = "INFO/version";
+ uint32 version;
+ int i;
+
+ if (tdb)
+ return True;
+
+ tdb = tdb_open_log(lock_path("account_policy.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
+ if (!tdb) {
+ DEBUG(0,("Failed to open account policy database\n"));
+ return False;
+ }
+
+ /* handle a Samba upgrade */
+ tdb_lock_bystring(tdb, vstring,0);
+ if (!tdb_fetch_uint32(tdb, vstring, &version) || version != DATABASE_VERSION) {
+
+ tdb_store_uint32(tdb, vstring, DATABASE_VERSION);
+
+ for (i=0; account_policy_names[i].field; i++) {
+
+ if (!account_policy_set_default_on_empty(account_policy_names[i].field)) {
+ DEBUG(0,("failed to set default value in account policy tdb\n"));
+ return False;
+ }
+ }
+ }
+
+ if (!migrate_account_policy_names_to_passdb()) {
+ DEBUG(0,("Could not migrate account policy tdb to passdb.\n"));
+ return False;
+ }
+
+ tdb_unlock_bystring(tdb, vstring);
+
+ /* These exist by default on NT4 in [HKLM\SECURITY\Policy\Accounts] */
+
+ privilege_create_account( &global_sid_World );
+ privilege_create_account( &global_sid_Builtin_Administrators );
+ privilege_create_account( &global_sid_Builtin_Account_Operators );
+ privilege_create_account( &global_sid_Builtin_Server_Operators );
+ privilege_create_account( &global_sid_Builtin_Print_Operators );
+ privilege_create_account( &global_sid_Builtin_Backup_Operators );
+
+ return True;
+}
+
+/*****************************************************************************
+Internal function
+*****************************************************************************/
BOOL account_policy_get(int field, uint32 *value)
{
fstring name;
uint32 regval;
- if(!init_account_policy())return False;
+ if (!init_account_policy())
+ return False;
if (value)
*value = 0;
@@ -213,12 +378,15 @@ BOOL account_policy_get(int field, uint32 *value)
/****************************************************************************
+Get an account policy from a (migrated tdb)
****************************************************************************/
+
BOOL account_policy_set(int field, uint32 value)
{
fstring name;
- if(!init_account_policy())return False;
+ if (!init_account_policy())
+ return False;
fstrcpy(name, decode_account_policy_name(field));
if (!*name) {
@@ -227,7 +395,7 @@ BOOL account_policy_set(int field, uint32 value)
}
if (!tdb_store_uint32(tdb, name, value)) {
- DEBUG(1, ("tdb_store_uint32 failed for field %d (%s) on value %u", field, name, value));
+ DEBUG(1, ("tdb_store_uint32 failed for field %d (%s) on value %u\n", field, name, value));
return False;
}
@@ -237,6 +405,64 @@ BOOL account_policy_set(int field, uint32 value)
}
/****************************************************************************
+Set an account policy in the cache
+****************************************************************************/
+
+BOOL cache_account_policy_set(int field, uint32 value)
+{
+ uint32 lastset, i;
+
+ for (i=0; account_policy_names[i].field; i++) {
+
+ if (account_policy_names[i].field == field) {
+
+ DEBUG(10,("cache_account_policy_set: updating account pol cache\n"));
+
+ if (!account_policy_set(field, value)) {
+ return False;
+ }
+
+ if (!account_policy_cache_timestamp(&lastset, True)) {
+ DEBUG(10,("cache_account_policy_set: failed to get lastest cache update timestamp\n"));
+ return False;
+ }
+
+ DEBUG(10,("cache_account_policy_set: cache valid until: %s\n", http_timestring(lastset+AP_TTL)));
+ }
+ }
+
+ return True;
+}
+
+/*****************************************************************************
+Get an account policy from the cache
+*****************************************************************************/
+
+BOOL cache_account_policy_get(int field, uint32 *value)
+{
+ uint32 lastset, i;
+
+ if (!account_policy_cache_timestamp(&lastset, False)) {
+ DEBUG(10,("cache_account_policy_get: failed to get latest cache update timestamp\n"));
+ return False;
+ }
+
+ if ((lastset + AP_TTL) < (uint32)time(NULL) ) {
+ DEBUG(10,("cache_account_policy_get: no valid cache entry (cache expired)\n"));
+ return False;
+ }
+
+ for (i=0; account_policy_names[i].field; i++) {
+ if (account_policy_names[i].field == field) {
+ return account_policy_get(field, value);
+ }
+ }
+
+ return False;
+}
+
+
+/****************************************************************************
****************************************************************************/
TDB_CONTEXT *get_account_pol_tdb( void )
diff --git a/source3/lib/smbldap.c b/source3/lib/smbldap.c
index 7908bc254d..e242a6c3b1 100644
--- a/source3/lib/smbldap.c
+++ b/source3/lib/smbldap.c
@@ -208,6 +208,15 @@ ATTRIB_MAP_ENTRY sidmap_attr_list[] = {
{ LDAP_ATTR_LIST_END, NULL }
};
+/* attributes used for account policies */
+
+ATTRIB_MAP_ENTRY acctpol_attr_list[] = {
+ { LDAP_ATTR_OBJCLASS, "objectClass" },
+ { LDAP_ATTR_ACCOUNT_POLICY_NAME,"sambaAccountPolicyName" },
+ { LDAP_ATTR_ACCOUNT_POLICY_VAL, "sambaAccountPolicyValue" },
+ { LDAP_ATTR_LIST_END, NULL },
+};
+
/**********************************************************************
perform a simple table lookup and return the attribute name
**********************************************************************/
@@ -1244,6 +1253,82 @@ NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, const char *location, struct smbldap_
}
/**********************************************************************
+ Add the account-policies below the sambaDomain object to LDAP,
+*********************************************************************/
+static NTSTATUS add_new_domain_account_policies(struct smbldap_state *ldap_state,
+ const char *domain_name)
+{
+ NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
+ int i, ldap_op, policy_default, rc;
+ const char *policy_string = NULL;
+ const char *policy_comment = NULL;
+ pstring dn;
+ fstring policy_default_str;
+
+ DEBUG(3,("Adding new account policies for domain\n"));
+ ldap_op = LDAP_MOD_ADD;
+
+ for (i=1; decode_account_policy_name(i) != NULL; i++) {
+ LDAPMod **mods = NULL;
+
+ policy_string = decode_account_policy_name(i);
+ if (!policy_string) {
+ DEBUG(0,("add_new_domain_account_policies: ops. no policy!\n"));
+ return ntstatus;
+ }
+
+ policy_comment = account_policy_get_comment(i);
+ if (!policy_comment) {
+ DEBUG(0,("add_new_domain_account_policies: no description for policy found\n"));
+ return ntstatus;
+ }
+
+ if (!account_policy_get_default(i, &policy_default)) {
+ DEBUG(0,("add_new_domain_account_policies: failed to get default account policy\n"));
+ return ntstatus;
+ }
+
+ slprintf(policy_default_str, sizeof(policy_default_str) - 1, "%i", policy_default);
+
+ pstr_sprintf(dn, "%s=%s,%s=%s,%s",
+ get_attr_key2string(acctpol_attr_list, LDAP_ATTR_ACCOUNT_POLICY_NAME), policy_string,
+ get_attr_key2string(dominfo_attr_list, LDAP_ATTR_DOMAIN), get_global_sam_name(),
+ lp_ldap_suffix());
+
+ smbldap_set_mod( &mods, ldap_op, "objectClass", LDAP_OBJ_ACCOUNT_POLICY );
+
+ smbldap_set_mod( &mods, ldap_op,
+ get_attr_key2string(acctpol_attr_list, LDAP_ATTR_ACCOUNT_POLICY_NAME),
+ policy_string);
+
+ smbldap_set_mod( &mods, ldap_op,
+ get_attr_key2string(acctpol_attr_list, LDAP_ATTR_ACCOUNT_POLICY_VAL),
+ policy_default_str);
+
+ smbldap_set_mod( &mods, ldap_op, "description", policy_comment);
+
+ rc = smbldap_add(ldap_state, dn, mods);
+
+ if (rc!=LDAP_SUCCESS) {
+ char *ld_error = NULL;
+ ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error);
+ DEBUG(1,("failed to add account policy dn= %s with: %s\n\t%s\n",
+ dn, ldap_err2string(rc),
+ ld_error?ld_error:"unknown"));
+ SAFE_FREE(ld_error);
+
+ ldap_mods_free(mods, True);
+ return ntstatus;
+ }
+
+ DEBUG(2,("added: domain account policy = [%s] in the LDAP database\n", policy_string));
+ ldap_mods_free(mods, True);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/**********************************************************************
Add the sambaDomain to LDAP, so we don't have to search for this stuff
again. This is a once-add operation for now.
@@ -1397,7 +1482,8 @@ NTSTATUS smbldap_search_domain_info(struct smbldap_state *ldap_state,
DEBUG(3, ("Got no domain info entries for domain\n"));
ldap_msgfree(*result);
*result = NULL;
- if (try_add && NT_STATUS_IS_OK(ret = add_new_domain_info(ldap_state, domain_name))) {
+ if (try_add && NT_STATUS_IS_OK(ret = add_new_domain_info(ldap_state, domain_name))
+ && NT_STATUS_IS_OK(ret = add_new_domain_account_policies(ldap_state, domain_name))) {
return smbldap_search_domain_info(ldap_state, result, domain_name, False);
}
else {