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samba-mirror/source3/passdb/pdb_get_set.c

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/*
Unix SMB/CIFS implementation.
struct samu access routines
Copyright (C) Jeremy Allison 1996-2001
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
Copyright (C) Gerald (Jerry) Carter 2000-2006
Copyright (C) Andrew Bartlett 2001-2002
Copyright (C) Stefan (metze) Metzmacher 2002
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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.
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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.
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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 "../libcli/auth/libcli_auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
/**
* @todo Redefine this to NULL, but this changes the API because
* much of samba assumes that the pdb_get...() funtions
* return strings. (ie not null-pointers).
* See also pdb_fill_default_sam().
*/
#define PDB_NOT_QUITE_NULL ""
/*********************************************************************
Collection of get...() functions for struct samu.
********************************************************************/
uint32 pdb_get_acct_ctrl(const struct samu *sampass)
{
return sampass->acct_ctrl;
}
time_t pdb_get_logon_time(const struct samu *sampass)
{
return sampass->logon_time;
}
time_t pdb_get_logoff_time(const struct samu *sampass)
{
return sampass->logoff_time;
}
time_t pdb_get_kickoff_time(const struct samu *sampass)
{
return sampass->kickoff_time;
}
time_t pdb_get_bad_password_time(const struct samu *sampass)
{
return sampass->bad_password_time;
}
time_t pdb_get_pass_last_set_time(const struct samu *sampass)
{
return sampass->pass_last_set_time;
}
time_t pdb_get_pass_can_change_time(const struct samu *sampass)
{
uint32 allow;
/* if the last set time is zero, it means the user cannot
change their password, and this time must be zero. jmcd
*/
if (sampass->pass_last_set_time == 0)
return (time_t) 0;
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/* if the time is max, and the field has been changed,
we're trying to update this real value from the sampass
to indicate that the user cannot change their password. jmcd
*/
if (sampass->pass_can_change_time == get_time_t_max() &&
pdb_get_init_flags(sampass, PDB_CANCHANGETIME) == PDB_CHANGED)
return sampass->pass_can_change_time;
if (!pdb_get_account_policy(PDB_POLICY_MIN_PASSWORD_AGE, &allow))
allow = 0;
/* in normal cases, just calculate it from policy */
return sampass->pass_last_set_time + allow;
}
/* we need this for loading from the backend, so that we don't overwrite
non-changed max times, otherwise the pass_can_change checking won't work */
time_t pdb_get_pass_can_change_time_noncalc(const struct samu *sampass)
{
return sampass->pass_can_change_time;
}
time_t pdb_get_pass_must_change_time(const struct samu *sampass)
{
uint32 expire;
if (sampass->pass_last_set_time == 0)
return (time_t) 0;
if (sampass->acct_ctrl & ACB_PWNOEXP)
return get_time_t_max();
if (!pdb_get_account_policy(PDB_POLICY_MAX_PASSWORD_AGE, &expire)
|| expire == (uint32)-1 || expire == 0)
return get_time_t_max();
return sampass->pass_last_set_time + expire;
}
bool pdb_get_pass_can_change(const struct samu *sampass)
{
if (sampass->pass_can_change_time == get_time_t_max() &&
sampass->pass_last_set_time != 0)
return False;
return True;
}
uint16 pdb_get_logon_divs(const struct samu *sampass)
{
return sampass->logon_divs;
}
uint32 pdb_get_hours_len(const struct samu *sampass)
{
return sampass->hours_len;
}
const uint8 *pdb_get_hours(const struct samu *sampass)
{
return (sampass->hours);
}
const uint8 *pdb_get_nt_passwd(const struct samu *sampass)
{
SMB_ASSERT((!sampass->nt_pw.data)
|| sampass->nt_pw.length == NT_HASH_LEN);
return (uint8 *)sampass->nt_pw.data;
}
const uint8 *pdb_get_lanman_passwd(const struct samu *sampass)
{
SMB_ASSERT((!sampass->lm_pw.data)
|| sampass->lm_pw.length == LM_HASH_LEN);
return (uint8 *)sampass->lm_pw.data;
}
const uint8 *pdb_get_pw_history(const struct samu *sampass, uint32 *current_hist_len)
{
SMB_ASSERT((!sampass->nt_pw_his.data)
|| ((sampass->nt_pw_his.length % PW_HISTORY_ENTRY_LEN) == 0));
*current_hist_len = sampass->nt_pw_his.length / PW_HISTORY_ENTRY_LEN;
return (uint8 *)sampass->nt_pw_his.data;
}
/* Return the plaintext password if known. Most of the time
it isn't, so don't assume anything magic about this function.
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Used to pass the plaintext to passdb backends that might
want to store more than just the NTLM hashes.
*/
const char *pdb_get_plaintext_passwd(const struct samu *sampass)
{
return sampass->plaintext_pw;
}
const DOM_SID *pdb_get_user_sid(const struct samu *sampass)
{
return &sampass->user_sid;
}
const DOM_SID *pdb_get_group_sid(struct samu *sampass)
{
DOM_SID *gsid;
struct passwd *pwd;
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/* Return the cached group SID if we have that */
if ( sampass->group_sid ) {
return sampass->group_sid;
}
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/* generate the group SID from the user's primary Unix group */
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if ( !(gsid = TALLOC_P( sampass, DOM_SID )) ) {
return NULL;
}
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/* No algorithmic mapping, meaning that we have to figure out the
primary group SID according to group mapping and the user SID must
be a newly allocated one. We rely on the user's Unix primary gid.
We have no choice but to fail if we can't find it. */
if ( sampass->unix_pw ) {
pwd = sampass->unix_pw;
} else {
pwd = Get_Pwnam_alloc( sampass, pdb_get_username(sampass) );
}
if ( !pwd ) {
DEBUG(0,("pdb_get_group_sid: Failed to find Unix account for %s\n", pdb_get_username(sampass) ));
return NULL;
}
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if ( pdb_gid_to_sid(pwd->pw_gid, gsid) ) {
enum lsa_SidType type = SID_NAME_UNKNOWN;
TALLOC_CTX *mem_ctx = talloc_init("pdb_get_group_sid");
bool lookup_ret;
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if (!mem_ctx) {
return NULL;
}
/* Now check that it's actually a domain group and not something else */
lookup_ret = lookup_sid(mem_ctx, gsid, NULL, NULL, &type);
TALLOC_FREE( mem_ctx );
if ( lookup_ret && (type == SID_NAME_DOM_GRP) ) {
sampass->group_sid = gsid;
return sampass->group_sid;
}
DEBUG(3, ("Primary group for user %s is a %s and not a domain group\n",
pwd->pw_name, sid_type_lookup(type)));
}
/* Just set it to the 'Domain Users' RID of 512 which will
always resolve to a name */
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sid_copy( gsid, get_global_sam_sid() );
sid_append_rid( gsid, DOMAIN_GROUP_RID_USERS );
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sampass->group_sid = gsid;
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return sampass->group_sid;
}
/**
* Get flags showing what is initalised in the struct samu
* @param sampass the struct samu in question
* @return the flags indicating the members initialised in the struct.
**/
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enum pdb_value_state pdb_get_init_flags(const struct samu *sampass, enum pdb_elements element)
{
enum pdb_value_state ret = PDB_DEFAULT;
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if (!sampass->change_flags || !sampass->set_flags)
return ret;
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if (bitmap_query(sampass->set_flags, element)) {
DEBUG(11, ("element %d: SET\n", element));
ret = PDB_SET;
}
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if (bitmap_query(sampass->change_flags, element)) {
DEBUG(11, ("element %d: CHANGED\n", element));
ret = PDB_CHANGED;
}
if (ret == PDB_DEFAULT) {
DEBUG(11, ("element %d: DEFAULT\n", element));
}
return ret;
}
const char *pdb_get_username(const struct samu *sampass)
{
return sampass->username;
}
const char *pdb_get_domain(const struct samu *sampass)
{
return sampass->domain;
}
const char *pdb_get_nt_username(const struct samu *sampass)
{
return sampass->nt_username;
}
const char *pdb_get_fullname(const struct samu *sampass)
{
return sampass->full_name;
}
const char *pdb_get_homedir(const struct samu *sampass)
{
return sampass->home_dir;
}
const char *pdb_get_dir_drive(const struct samu *sampass)
{
return sampass->dir_drive;
}
const char *pdb_get_logon_script(const struct samu *sampass)
{
return sampass->logon_script;
}
const char *pdb_get_profile_path(const struct samu *sampass)
{
return sampass->profile_path;
}
const char *pdb_get_acct_desc(const struct samu *sampass)
{
return sampass->acct_desc;
}
const char *pdb_get_workstations(const struct samu *sampass)
{
return sampass->workstations;
}
const char *pdb_get_comment(const struct samu *sampass)
{
return sampass->comment;
}
const char *pdb_get_munged_dial(const struct samu *sampass)
{
return sampass->munged_dial;
}
uint16 pdb_get_bad_password_count(const struct samu *sampass)
{
return sampass->bad_password_count;
}
uint16 pdb_get_logon_count(const struct samu *sampass)
{
return sampass->logon_count;
}
uint32 pdb_get_unknown_6(const struct samu *sampass)
{
return sampass->unknown_6;
}
void *pdb_get_backend_private_data(const struct samu *sampass, const struct pdb_methods *my_methods)
{
if (my_methods == sampass->backend_private_methods) {
return sampass->backend_private_data;
} else {
return NULL;
}
}
/*********************************************************************
Collection of set...() functions for struct samu.
********************************************************************/
bool pdb_set_acct_ctrl(struct samu *sampass, uint32 acct_ctrl, enum pdb_value_state flag)
{
sampass->acct_ctrl = acct_ctrl;
return pdb_set_init_flags(sampass, PDB_ACCTCTRL, flag);
}
bool pdb_set_logon_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->logon_time = mytime;
return pdb_set_init_flags(sampass, PDB_LOGONTIME, flag);
}
bool pdb_set_logoff_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->logoff_time = mytime;
return pdb_set_init_flags(sampass, PDB_LOGOFFTIME, flag);
}
bool pdb_set_kickoff_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->kickoff_time = mytime;
return pdb_set_init_flags(sampass, PDB_KICKOFFTIME, flag);
}
bool pdb_set_bad_password_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->bad_password_time = mytime;
return pdb_set_init_flags(sampass, PDB_BAD_PASSWORD_TIME, flag);
}
bool pdb_set_pass_can_change_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->pass_can_change_time = mytime;
return pdb_set_init_flags(sampass, PDB_CANCHANGETIME, flag);
}
bool pdb_set_pass_must_change_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->pass_must_change_time = mytime;
return pdb_set_init_flags(sampass, PDB_MUSTCHANGETIME, flag);
}
bool pdb_set_pass_last_set_time(struct samu *sampass, time_t mytime, enum pdb_value_state flag)
{
sampass->pass_last_set_time = mytime;
return pdb_set_init_flags(sampass, PDB_PASSLASTSET, flag);
}
bool pdb_set_hours_len(struct samu *sampass, uint32 len, enum pdb_value_state flag)
{
sampass->hours_len = len;
return pdb_set_init_flags(sampass, PDB_HOURSLEN, flag);
}
bool pdb_set_logon_divs(struct samu *sampass, uint16 hours, enum pdb_value_state flag)
{
sampass->logon_divs = hours;
return pdb_set_init_flags(sampass, PDB_LOGONDIVS, flag);
}
/**
* Set flags showing what is initalised in the struct samu
* @param sampass the struct samu in question
* @param flag The *new* flag to be set. Old flags preserved
* this flag is only added.
**/
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bool pdb_set_init_flags(struct samu *sampass, enum pdb_elements element, enum pdb_value_state value_flag)
{
if (!sampass->set_flags) {
if ((sampass->set_flags =
bitmap_talloc(sampass,
PDB_COUNT))==NULL) {
DEBUG(0,("bitmap_talloc failed\n"));
return False;
}
}
if (!sampass->change_flags) {
if ((sampass->change_flags =
bitmap_talloc(sampass,
PDB_COUNT))==NULL) {
DEBUG(0,("bitmap_talloc failed\n"));
return False;
}
}
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switch(value_flag) {
case PDB_CHANGED:
if (!bitmap_set(sampass->change_flags, element)) {
DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
return False;
}
if (!bitmap_set(sampass->set_flags, element)) {
DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
return False;
}
DEBUG(11, ("element %d -> now CHANGED\n", element));
break;
case PDB_SET:
if (!bitmap_clear(sampass->change_flags, element)) {
DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
return False;
}
if (!bitmap_set(sampass->set_flags, element)) {
DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
return False;
}
DEBUG(11, ("element %d -> now SET\n", element));
break;
case PDB_DEFAULT:
default:
if (!bitmap_clear(sampass->change_flags, element)) {
DEBUG(0,("Can't set flag: %d in change_flags.\n",element));
return False;
}
if (!bitmap_clear(sampass->set_flags, element)) {
DEBUG(0,("Can't set flag: %d in set_flags.\n",element));
return False;
}
DEBUG(11, ("element %d -> now DEFAULT\n", element));
break;
}
return True;
}
bool pdb_set_user_sid(struct samu *sampass, const DOM_SID *u_sid, enum pdb_value_state flag)
{
if (!u_sid)
return False;
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sid_copy(&sampass->user_sid, u_sid);
DEBUG(10, ("pdb_set_user_sid: setting user sid %s\n",
sid_string_dbg(&sampass->user_sid)));
return pdb_set_init_flags(sampass, PDB_USERSID, flag);
}
bool pdb_set_user_sid_from_string(struct samu *sampass, fstring u_sid, enum pdb_value_state flag)
{
DOM_SID new_sid;
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if (!u_sid)
return False;
DEBUG(10, ("pdb_set_user_sid_from_string: setting user sid %s\n",
u_sid));
if (!string_to_sid(&new_sid, u_sid)) {
DEBUG(1, ("pdb_set_user_sid_from_string: %s isn't a valid SID!\n", u_sid));
return False;
}
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if (!pdb_set_user_sid(sampass, &new_sid, flag)) {
DEBUG(1, ("pdb_set_user_sid_from_string: could not set sid %s on struct samu!\n", u_sid));
return False;
}
return True;
}
/********************************************************************
We never fill this in from a passdb backend but rather set is
based on the user's primary group membership. However, the
struct samu* is overloaded and reused in domain memship code
as well and built from the netr_SamInfo3 or PAC so we
have to allow the explicitly setting of a group SID here.
********************************************************************/
bool pdb_set_group_sid(struct samu *sampass, const DOM_SID *g_sid, enum pdb_value_state flag)
{
gid_t gid;
if (!g_sid)
return False;
if ( !(sampass->group_sid = TALLOC_P( sampass, DOM_SID )) ) {
return False;
}
/* if we cannot resolve the SID to gid, then just ignore it and
store DOMAIN_USERS as the primary groupSID */
if ( sid_to_gid( g_sid, &gid ) ) {
sid_copy(sampass->group_sid, g_sid);
} else {
sid_copy( sampass->group_sid, get_global_sam_sid() );
sid_append_rid( sampass->group_sid, DOMAIN_GROUP_RID_USERS );
}
DEBUG(10, ("pdb_set_group_sid: setting group sid %s\n",
sid_string_dbg(sampass->group_sid)));
return pdb_set_init_flags(sampass, PDB_GROUPSID, flag);
}
/*********************************************************************
Set the user's UNIX name.
********************************************************************/
bool pdb_set_username(struct samu *sampass, const char *username, enum pdb_value_state flag)
{
if (username) {
DEBUG(10, ("pdb_set_username: setting username %s, was %s\n", username,
(sampass->username)?(sampass->username):"NULL"));
sampass->username = talloc_strdup(sampass, username);
if (!sampass->username) {
DEBUG(0, ("pdb_set_username: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->username = PDB_NOT_QUITE_NULL;
}
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return pdb_set_init_flags(sampass, PDB_USERNAME, flag);
}
/*********************************************************************
Set the domain name.
********************************************************************/
bool pdb_set_domain(struct samu *sampass, const char *domain, enum pdb_value_state flag)
{
if (domain) {
DEBUG(10, ("pdb_set_domain: setting domain %s, was %s\n", domain,
(sampass->domain)?(sampass->domain):"NULL"));
sampass->domain = talloc_strdup(sampass, domain);
if (!sampass->domain) {
DEBUG(0, ("pdb_set_domain: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->domain = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_DOMAIN, flag);
}
/*********************************************************************
Set the user's NT name.
********************************************************************/
bool pdb_set_nt_username(struct samu *sampass, const char *nt_username, enum pdb_value_state flag)
{
if (nt_username) {
DEBUG(10, ("pdb_set_nt_username: setting nt username %s, was %s\n", nt_username,
(sampass->nt_username)?(sampass->nt_username):"NULL"));
sampass->nt_username = talloc_strdup(sampass, nt_username);
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if (!sampass->nt_username) {
DEBUG(0, ("pdb_set_nt_username: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->nt_username = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_NTUSERNAME, flag);
}
/*********************************************************************
Set the user's full name.
********************************************************************/
bool pdb_set_fullname(struct samu *sampass, const char *full_name, enum pdb_value_state flag)
{
if (full_name) {
DEBUG(10, ("pdb_set_full_name: setting full name %s, was %s\n", full_name,
(sampass->full_name)?(sampass->full_name):"NULL"));
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sampass->full_name = talloc_strdup(sampass, full_name);
if (!sampass->full_name) {
DEBUG(0, ("pdb_set_fullname: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->full_name = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_FULLNAME, flag);
}
/*********************************************************************
Set the user's logon script.
********************************************************************/
bool pdb_set_logon_script(struct samu *sampass, const char *logon_script, enum pdb_value_state flag)
{
if (logon_script) {
DEBUG(10, ("pdb_set_logon_script: setting logon script %s, was %s\n", logon_script,
(sampass->logon_script)?(sampass->logon_script):"NULL"));
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sampass->logon_script = talloc_strdup(sampass, logon_script);
if (!sampass->logon_script) {
DEBUG(0, ("pdb_set_logon_script: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->logon_script = PDB_NOT_QUITE_NULL;
}
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return pdb_set_init_flags(sampass, PDB_LOGONSCRIPT, flag);
}
/*********************************************************************
Set the user's profile path.
********************************************************************/
bool pdb_set_profile_path(struct samu *sampass, const char *profile_path, enum pdb_value_state flag)
{
if (profile_path) {
DEBUG(10, ("pdb_set_profile_path: setting profile path %s, was %s\n", profile_path,
(sampass->profile_path)?(sampass->profile_path):"NULL"));
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sampass->profile_path = talloc_strdup(sampass, profile_path);
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if (!sampass->profile_path) {
DEBUG(0, ("pdb_set_profile_path: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->profile_path = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_PROFILE, flag);
}
/*********************************************************************
Set the user's directory drive.
********************************************************************/
bool pdb_set_dir_drive(struct samu *sampass, const char *dir_drive, enum pdb_value_state flag)
{
if (dir_drive) {
DEBUG(10, ("pdb_set_dir_drive: setting dir drive %s, was %s\n", dir_drive,
(sampass->dir_drive)?(sampass->dir_drive):"NULL"));
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sampass->dir_drive = talloc_strdup(sampass, dir_drive);
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if (!sampass->dir_drive) {
DEBUG(0, ("pdb_set_dir_drive: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->dir_drive = PDB_NOT_QUITE_NULL;
}
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return pdb_set_init_flags(sampass, PDB_DRIVE, flag);
}
/*********************************************************************
Set the user's home directory.
********************************************************************/
bool pdb_set_homedir(struct samu *sampass, const char *home_dir, enum pdb_value_state flag)
{
if (home_dir) {
DEBUG(10, ("pdb_set_homedir: setting home dir %s, was %s\n", home_dir,
(sampass->home_dir)?(sampass->home_dir):"NULL"));
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sampass->home_dir = talloc_strdup(sampass, home_dir);
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if (!sampass->home_dir) {
DEBUG(0, ("pdb_set_home_dir: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->home_dir = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_SMBHOME, flag);
}
/*********************************************************************
Set the user's account description.
********************************************************************/
bool pdb_set_acct_desc(struct samu *sampass, const char *acct_desc, enum pdb_value_state flag)
{
if (acct_desc) {
sampass->acct_desc = talloc_strdup(sampass, acct_desc);
if (!sampass->acct_desc) {
DEBUG(0, ("pdb_set_acct_desc: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->acct_desc = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_ACCTDESC, flag);
}
/*********************************************************************
Set the user's workstation allowed list.
********************************************************************/
bool pdb_set_workstations(struct samu *sampass, const char *workstations, enum pdb_value_state flag)
{
if (workstations) {
DEBUG(10, ("pdb_set_workstations: setting workstations %s, was %s\n", workstations,
(sampass->workstations)?(sampass->workstations):"NULL"));
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sampass->workstations = talloc_strdup(sampass, workstations);
if (!sampass->workstations) {
DEBUG(0, ("pdb_set_workstations: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->workstations = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_WORKSTATIONS, flag);
}
/*********************************************************************
********************************************************************/
bool pdb_set_comment(struct samu *sampass, const char *comment, enum pdb_value_state flag)
{
if (comment) {
sampass->comment = talloc_strdup(sampass, comment);
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if (!sampass->comment) {
DEBUG(0, ("pdb_set_comment: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->comment = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_COMMENT, flag);
}
/*********************************************************************
Set the user's dial string.
********************************************************************/
bool pdb_set_munged_dial(struct samu *sampass, const char *munged_dial, enum pdb_value_state flag)
{
if (munged_dial) {
sampass->munged_dial = talloc_strdup(sampass, munged_dial);
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if (!sampass->munged_dial) {
DEBUG(0, ("pdb_set_munged_dial: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->munged_dial = PDB_NOT_QUITE_NULL;
}
return pdb_set_init_flags(sampass, PDB_MUNGEDDIAL, flag);
}
/*********************************************************************
Set the user's NT hash.
********************************************************************/
bool pdb_set_nt_passwd(struct samu *sampass, const uint8 pwd[NT_HASH_LEN], enum pdb_value_state flag)
{
data_blob_clear_free(&sampass->nt_pw);
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if (pwd) {
sampass->nt_pw =
data_blob_talloc(sampass, pwd, NT_HASH_LEN);
} else {
sampass->nt_pw = data_blob_null;
}
return pdb_set_init_flags(sampass, PDB_NTPASSWD, flag);
}
/*********************************************************************
Set the user's LM hash.
********************************************************************/
bool pdb_set_lanman_passwd(struct samu *sampass, const uint8 pwd[LM_HASH_LEN], enum pdb_value_state flag)
{
data_blob_clear_free(&sampass->lm_pw);
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/* on keep the password if we are allowing LANMAN authentication */
if (pwd && lp_lanman_auth() ) {
sampass->lm_pw = data_blob_talloc(sampass, pwd, LM_HASH_LEN);
} else {
sampass->lm_pw = data_blob_null;
}
return pdb_set_init_flags(sampass, PDB_LMPASSWD, flag);
}
/*********************************************************************
Set the user's password history hash. historyLen is the number of
PW_HISTORY_SALT_LEN+SALTED_MD5_HASH_LEN length
entries to store in the history - this must match the size of the uint8 array
in pwd.
********************************************************************/
bool pdb_set_pw_history(struct samu *sampass, const uint8 *pwd, uint32 historyLen, enum pdb_value_state flag)
{
if (historyLen && pwd){
data_blob_free(&(sampass->nt_pw_his));
sampass->nt_pw_his = data_blob_talloc(sampass,
pwd, historyLen*PW_HISTORY_ENTRY_LEN);
if (!sampass->nt_pw_his.length) {
DEBUG(0, ("pdb_set_pw_history: data_blob_talloc() failed!\n"));
return False;
}
} else {
sampass->nt_pw_his = data_blob_talloc(sampass, NULL, 0);
}
return pdb_set_init_flags(sampass, PDB_PWHISTORY, flag);
}
/*********************************************************************
Set the user's plaintext password only (base procedure, see helper
below)
********************************************************************/
bool pdb_set_plaintext_pw_only(struct samu *sampass, const char *password, enum pdb_value_state flag)
{
if (password) {
if (sampass->plaintext_pw!=NULL)
memset(sampass->plaintext_pw,'\0',strlen(sampass->plaintext_pw)+1);
sampass->plaintext_pw = talloc_strdup(sampass, password);
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if (!sampass->plaintext_pw) {
DEBUG(0, ("pdb_set_unknown_str: talloc_strdup() failed!\n"));
return False;
}
} else {
sampass->plaintext_pw = NULL;
}
return pdb_set_init_flags(sampass, PDB_PLAINTEXT_PW, flag);
}
bool pdb_set_bad_password_count(struct samu *sampass, uint16 bad_password_count, enum pdb_value_state flag)
{
sampass->bad_password_count = bad_password_count;
return pdb_set_init_flags(sampass, PDB_BAD_PASSWORD_COUNT, flag);
}
bool pdb_set_logon_count(struct samu *sampass, uint16 logon_count, enum pdb_value_state flag)
{
sampass->logon_count = logon_count;
return pdb_set_init_flags(sampass, PDB_LOGON_COUNT, flag);
}
bool pdb_set_unknown_6(struct samu *sampass, uint32 unkn, enum pdb_value_state flag)
{
sampass->unknown_6 = unkn;
return pdb_set_init_flags(sampass, PDB_UNKNOWN6, flag);
}
bool pdb_set_hours(struct samu *sampass, const uint8 *hours, enum pdb_value_state flag)
{
if (!hours) {
memset ((char *)sampass->hours, 0, MAX_HOURS_LEN);
} else {
memcpy (sampass->hours, hours, MAX_HOURS_LEN);
}
return pdb_set_init_flags(sampass, PDB_HOURS, flag);
}
bool pdb_set_backend_private_data(struct samu *sampass, void *private_data,
void (*free_fn)(void **),
const struct pdb_methods *my_methods,
enum pdb_value_state flag)
{
if (sampass->backend_private_data &&
sampass->backend_private_data_free_fn) {
sampass->backend_private_data_free_fn(
&sampass->backend_private_data);
}
sampass->backend_private_data = private_data;
sampass->backend_private_data_free_fn = free_fn;
sampass->backend_private_methods = my_methods;
return pdb_set_init_flags(sampass, PDB_BACKEND_PRIVATE_DATA, flag);
}
/* Helpful interfaces to the above */
bool pdb_set_pass_can_change(struct samu *sampass, bool canchange)
{
return pdb_set_pass_can_change_time(sampass,
canchange ? 0 : get_time_t_max(),
PDB_CHANGED);
}
/*********************************************************************
Set the user's PLAINTEXT password. Used as an interface to the above.
Also sets the last change time to NOW.
********************************************************************/
bool pdb_set_plaintext_passwd(struct samu *sampass, const char *plaintext)
{
uchar new_lanman_p16[LM_HASH_LEN];
uchar new_nt_p16[NT_HASH_LEN];
uchar *pwhistory;
uint32 pwHistLen;
uint32 current_history_len;
if (!plaintext)
return False;
/* Calculate the MD4 hash (NT compatible) of the password */
E_md4hash(plaintext, new_nt_p16);
if (!pdb_set_nt_passwd (sampass, new_nt_p16, PDB_CHANGED))
return False;
if (!E_deshash(plaintext, new_lanman_p16)) {
/* E_deshash returns false for 'long' passwords (> 14
DOS chars). This allows us to match Win2k, which
does not store a LM hash for these passwords (which
would reduce the effective password length to 14 */
if (!pdb_set_lanman_passwd (sampass, NULL, PDB_CHANGED))
return False;
} else {
if (!pdb_set_lanman_passwd (sampass, new_lanman_p16, PDB_CHANGED))
return False;
}
if (!pdb_set_plaintext_pw_only (sampass, plaintext, PDB_CHANGED))
return False;
if (!pdb_set_pass_last_set_time (sampass, time(NULL), PDB_CHANGED))
return False;
if ((pdb_get_acct_ctrl(sampass) & ACB_NORMAL) == 0) {
/*
* No password history for non-user accounts
*/
return true;
}
pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
if (pwHistLen == 0) {
/* Set the history length to zero. */
pdb_set_pw_history(sampass, NULL, 0, PDB_CHANGED);
return true;
}
/*
* We need to make sure we don't have a race condition here -
* the account policy history length can change between when
* the pw_history was first loaded into the struct samu struct
* and now.... JRA.
*/
pwhistory = (uchar *)pdb_get_pw_history(sampass, &current_history_len);
if (current_history_len != pwHistLen) {
/*
* After closing and reopening struct samu the history
* values will sync up. We can't do this here.
*/
/*
* current_history_len > pwHistLen is not a problem -
* we have more history than we need.
*/
if (current_history_len < pwHistLen) {
/*
* Ensure we have space for the needed history.
*/
uchar *new_history = talloc_array(
sampass, uchar,
pwHistLen*PW_HISTORY_ENTRY_LEN);
if (!new_history) {
return False;
}
/* And copy it into the new buffer. */
if (current_history_len) {
memcpy(new_history, pwhistory,
current_history_len*PW_HISTORY_ENTRY_LEN);
}
/* Clearing out any extra space. */
memset(&new_history[current_history_len*PW_HISTORY_ENTRY_LEN],
'\0', (pwHistLen-current_history_len)*PW_HISTORY_ENTRY_LEN);
/* Finally replace it. */
pwhistory = new_history;
}
}
if (pwhistory && pwHistLen) {
/*
* Make room for the new password in the history list.
*/
if (pwHistLen > 1) {
memmove(&pwhistory[PW_HISTORY_ENTRY_LEN], pwhistory,
(pwHistLen-1)*PW_HISTORY_ENTRY_LEN );
}
/*
* Create the new salt as the first part of the
* history entry.
*/
generate_random_buffer(pwhistory, PW_HISTORY_SALT_LEN);
/*
* Generate the md5 hash of the salt+new password as
* the second part of the history entry.
*/
E_md5hash(pwhistory, new_nt_p16,
&pwhistory[PW_HISTORY_SALT_LEN]);
pdb_set_pw_history(sampass, pwhistory, pwHistLen, PDB_CHANGED);
} else {
DEBUG (10,("pdb_get_set.c: pdb_set_plaintext_passwd: "
"pwhistory was NULL!\n"));
}
return True;
}
/* check for any PDB_SET/CHANGED field and fill the appropriate mask bit */
uint32 pdb_build_fields_present(struct samu *sampass)
{
/* value set to all for testing */
return 0x00ffffff;
}