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a3ddfa5069
- Try better to add the appropriate mapping between UID and SIDs, based
on Get_Pwnam()
- Look for previous users (lookup by SID) and correctly modify the existing
entry in that case
- Map the root user to the Admin SID as a 'well known user'
- Save the LDAPMessage result on the SAM_ACCOUNT for use in the next 'update'
call on that user. This means that VL's very nice work on atomic LDAP
updates now really gets used properly!
- This also means that we know the right DN to update, without the extra
round-trips to the server.
Andrew Bartlett
(This used to be commit c7118cb31d
)
1043 lines
30 KiB
C
1043 lines
30 KiB
C
/*
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Unix SMB/CIFS implementation.
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Password and authentication handling
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Copyright (C) Jeremy Allison 1996-2001
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Copyright (C) Luke Kenneth Casson Leighton 1996-1998
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Copyright (C) Gerald (Jerry) Carter 2000-2001
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Copyright (C) Andrew Bartlett 2001-2002
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Copyright (C) Simo Sorce 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_PASSDB
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/******************************************************************
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get the default domain/netbios name to be used when
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testing authentication. For example, if you connect
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to a Windows member server using a bogus domain name, the
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Windows box will map the BOGUS\user to DOMAIN\user. A
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standalone box will map to WKS\user.
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******************************************************************/
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const char *get_default_sam_name(void)
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{
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/* standalone servers can only use the local netbios name */
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if ( lp_server_role() == ROLE_STANDALONE )
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return global_myname();
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/* Windows domain members default to the DOMAIN
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name when not specified */
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return lp_workgroup();
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}
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/******************************************************************
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get the default domain/netbios name to be used when dealing
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with our passdb list of accounts
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******************************************************************/
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const char *get_global_sam_name(void)
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{
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if ((lp_server_role() == ROLE_DOMAIN_PDC) || (lp_server_role() == ROLE_DOMAIN_BDC)) {
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return lp_workgroup();
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}
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return global_myname();
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}
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/************************************************************
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Fill the SAM_ACCOUNT with default values.
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***********************************************************/
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void pdb_fill_default_sam(SAM_ACCOUNT *user)
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{
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ZERO_STRUCT(user->private); /* Don't touch the talloc context */
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/* no initial methods */
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user->methods = NULL;
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/* Don't change these timestamp settings without a good reason.
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They are important for NT member server compatibility. */
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user->private.logon_time = (time_t)0;
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user->private.pass_last_set_time = (time_t)0;
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user->private.pass_can_change_time = (time_t)0;
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user->private.logoff_time =
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user->private.kickoff_time =
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user->private.pass_must_change_time = get_time_t_max();
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user->private.unknown_3 = 0x00ffffff; /* don't know */
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user->private.logon_divs = 168; /* hours per week */
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user->private.hours_len = 21; /* 21 times 8 bits = 168 */
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memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
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user->private.unknown_5 = 0x00000000; /* don't know */
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user->private.unknown_6 = 0x000004ec; /* don't know */
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/* Some parts of samba strlen their pdb_get...() returns,
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so this keeps the interface unchanged for now. */
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user->private.username = "";
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user->private.domain = "";
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user->private.nt_username = "";
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user->private.full_name = "";
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user->private.home_dir = "";
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user->private.logon_script = "";
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user->private.profile_path = "";
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user->private.acct_desc = "";
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user->private.workstations = "";
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user->private.unknown_str = "";
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user->private.munged_dial = "";
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user->private.plaintext_pw = NULL;
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}
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static void destroy_pdb_talloc(SAM_ACCOUNT **user)
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{
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if (*user) {
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data_blob_clear_free(&((*user)->private.lm_pw));
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data_blob_clear_free(&((*user)->private.nt_pw));
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if((*user)->private.plaintext_pw!=NULL)
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memset((*user)->private.plaintext_pw,'\0',strlen((*user)->private.plaintext_pw));
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talloc_destroy((*user)->mem_ctx);
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*user = NULL;
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}
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}
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/**********************************************************************
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Alloc memory and initialises a struct sam_passwd on supplied mem_ctx.
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***********************************************************************/
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NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
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{
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if (*user != NULL) {
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DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
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#if 0
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smb_panic("non-NULL pointer passed to pdb_init_sam\n");
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#endif
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return NT_STATUS_UNSUCCESSFUL;
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}
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if (!mem_ctx) {
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DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
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return NT_STATUS_UNSUCCESSFUL;
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}
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*user=(SAM_ACCOUNT *)talloc(mem_ctx, sizeof(SAM_ACCOUNT));
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if (*user==NULL) {
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DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
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return NT_STATUS_NO_MEMORY;
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}
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(*user)->mem_ctx = mem_ctx;
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(*user)->free_fn = NULL;
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pdb_fill_default_sam(*user);
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return NT_STATUS_OK;
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}
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/*************************************************************
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Alloc memory and initialises a struct sam_passwd.
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************************************************************/
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NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
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{
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TALLOC_CTX *mem_ctx;
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NTSTATUS nt_status;
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mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
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if (!mem_ctx) {
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DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
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return NT_STATUS_NO_MEMORY;
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}
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if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
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talloc_destroy(mem_ctx);
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return nt_status;
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}
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(*user)->free_fn = destroy_pdb_talloc;
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return NT_STATUS_OK;
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}
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/*************************************************************
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Initialises a struct sam_passwd with sane values.
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************************************************************/
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NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
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{
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NTSTATUS ret;
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if (!pwd) {
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return NT_STATUS_UNSUCCESSFUL;
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}
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pdb_fill_default_sam(sam_account);
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pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
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pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
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pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
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pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
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/* When we get a proper uid -> SID and SID -> uid allocation
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mechinism, we should call it here.
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We can't just set this to 0 or allow it only to be filled
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in when added to the backend, because the user's SID
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may already be in security descriptors etc.
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-- abartlet 11-May-02
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*/
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ret = pdb_set_sam_sids(sam_account, pwd);
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if (!NT_STATUS_IS_OK(ret)) return ret;
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/* check if this is a user account or a machine account */
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if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
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{
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pdb_set_profile_path(sam_account,
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talloc_sub_specified((sam_account)->mem_ctx,
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lp_logon_path(),
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pwd->pw_name, global_myname(),
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pwd->pw_uid, pwd->pw_gid),
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PDB_DEFAULT);
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pdb_set_homedir(sam_account,
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talloc_sub_specified((sam_account)->mem_ctx,
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lp_logon_home(),
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pwd->pw_name, global_myname(),
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pwd->pw_uid, pwd->pw_gid),
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PDB_DEFAULT);
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pdb_set_dir_drive(sam_account,
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talloc_sub_specified((sam_account)->mem_ctx,
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lp_logon_drive(),
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pwd->pw_name, global_myname(),
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pwd->pw_uid, pwd->pw_gid),
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PDB_DEFAULT);
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pdb_set_logon_script(sam_account,
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talloc_sub_specified((sam_account)->mem_ctx,
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lp_logon_script(),
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pwd->pw_name, global_myname(),
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pwd->pw_uid, pwd->pw_gid),
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PDB_DEFAULT);
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if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
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DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
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return NT_STATUS_UNSUCCESSFUL;
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}
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} else {
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if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
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DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
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return NT_STATUS_UNSUCCESSFUL;
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}
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}
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return NT_STATUS_OK;
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}
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/*************************************************************
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Initialises a struct sam_passwd with sane values.
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************************************************************/
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NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
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{
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NTSTATUS nt_status;
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if (!pwd) {
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new_sam_acct = NULL;
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
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new_sam_acct = NULL;
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return nt_status;
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}
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if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
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pdb_free_sam(new_sam_acct);
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new_sam_acct = NULL;
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return nt_status;
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}
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return NT_STATUS_OK;
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}
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/*************************************************************
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Initialises a SAM_ACCOUNT ready to add a new account, based
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on the unix user if possible.
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************************************************************/
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NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username)
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{
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NTSTATUS nt_status = NT_STATUS_NO_MEMORY;
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struct passwd *pwd;
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pwd = Get_Pwnam(username);
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if (pwd) {
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if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
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*new_sam_acct = NULL;
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return nt_status;
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}
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} else {
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DOM_SID g_sid;
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if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
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*new_sam_acct = NULL;
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return nt_status;
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}
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if (!pdb_set_username(*new_sam_acct, username, PDB_SET)) {
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pdb_free_sam(new_sam_acct);
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return nt_status;
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}
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pdb_set_domain (*new_sam_acct, get_global_sam_name(), PDB_DEFAULT);
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/* set Domain Users by default ! */
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sid_copy(&g_sid, get_global_sam_sid());
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sid_append_rid(&g_sid, DOMAIN_GROUP_RID_USERS);
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pdb_set_group_sid(*new_sam_acct, &g_sid, PDB_SET);
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}
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return NT_STATUS_OK;
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}
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/**
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* Free the contets of the SAM_ACCOUNT, but not the structure.
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*
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* Also wipes the LM and NT hashes and plaintext password from
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* memory.
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*
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* @param user SAM_ACCOUNT to free members of.
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**/
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static void pdb_free_sam_contents(SAM_ACCOUNT *user)
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{
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/* Kill off sensitive data. Free()ed by the
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talloc mechinism */
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data_blob_clear_free(&(user->private.lm_pw));
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data_blob_clear_free(&(user->private.nt_pw));
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if (user->private.plaintext_pw!=NULL)
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memset(user->private.plaintext_pw,'\0',strlen(user->private.plaintext_pw));
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if (user->private.backend_private_data && user->private.backend_private_data_free_fn) {
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user->private.backend_private_data_free_fn(&user->private.backend_private_data);
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}
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}
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/************************************************************
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Reset the SAM_ACCOUNT and free the NT/LM hashes.
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***********************************************************/
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NTSTATUS pdb_reset_sam(SAM_ACCOUNT *user)
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{
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if (user == NULL) {
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DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
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#if 0
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smb_panic("NULL pointer passed to pdb_free_sam\n");
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#endif
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return NT_STATUS_UNSUCCESSFUL;
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}
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pdb_free_sam_contents(user);
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pdb_fill_default_sam(user);
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return NT_STATUS_OK;
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}
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/************************************************************
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Free the SAM_ACCOUNT and the member pointers.
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***********************************************************/
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NTSTATUS pdb_free_sam(SAM_ACCOUNT **user)
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{
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if (*user == NULL) {
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DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
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#if 0
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smb_panic("NULL pointer passed to pdb_free_sam\n");
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#endif
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return NT_STATUS_UNSUCCESSFUL;
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}
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pdb_free_sam_contents(*user);
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if ((*user)->free_fn) {
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(*user)->free_fn(user);
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}
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return NT_STATUS_OK;
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}
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/**************************************************************************
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* This function will take care of all the steps needed to correctly
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* allocate and set the user SID, please do use this function to create new
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* users, messing with SIDs is not good.
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*
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* account_data must be provided initialized, pwd may be null.
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* SSS
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***************************************************************************/
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NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
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{
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const char *guest_account = lp_guestaccount();
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GROUP_MAP map;
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if (!account_data || !pwd) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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/* this is a hack this thing should not be set
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this way --SSS */
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if (!(guest_account && *guest_account)) {
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DEBUG(1, ("NULL guest account!?!?\n"));
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return NT_STATUS_UNSUCCESSFUL;
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} else {
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/* Ensure this *must* be set right */
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if (strcmp(pwd->pw_name, guest_account) == 0) {
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if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
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return NT_STATUS_UNSUCCESSFUL;
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}
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if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
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return NT_STATUS_UNSUCCESSFUL;
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}
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return NT_STATUS_OK;
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}
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}
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if (!pdb_set_user_sid_from_rid(account_data, fallback_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
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DEBUG(0,("Can't set User SID from RID!\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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/* call the mapping code here */
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if(pdb_getgrgid(&map, pwd->pw_gid)) {
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if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
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DEBUG(0,("Can't set Group SID!\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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}
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else {
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if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
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DEBUG(0,("Can't set Group SID\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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}
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return NT_STATUS_OK;
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}
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/**********************************************************
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Encode the account control bits into a string.
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length = length of string to encode into (including terminating
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null). length *MUST BE MORE THAN 2* !
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**********************************************************/
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char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
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{
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static fstring acct_str;
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size_t i = 0;
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acct_str[i++] = '[';
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if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
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if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
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if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
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if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
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if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
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if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
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if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
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if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
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if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
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if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
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if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
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for ( ; i < length - 2 ; i++ )
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acct_str[i] = ' ';
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i = length - 2;
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acct_str[i++] = ']';
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acct_str[i++] = '\0';
|
|
|
|
return acct_str;
|
|
}
|
|
|
|
/**********************************************************
|
|
Decode the account control bits from a string.
|
|
**********************************************************/
|
|
|
|
uint16 pdb_decode_acct_ctrl(const char *p)
|
|
{
|
|
uint16 acct_ctrl = 0;
|
|
BOOL finished = False;
|
|
|
|
/*
|
|
* Check if the account type bits have been encoded after the
|
|
* NT password (in the form [NDHTUWSLXI]).
|
|
*/
|
|
|
|
if (*p != '[')
|
|
return 0;
|
|
|
|
for (p++; *p && !finished; p++) {
|
|
switch (*p) {
|
|
case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
|
|
case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
|
|
case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
|
|
case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
|
|
case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
|
|
case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
|
|
case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
|
|
case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
|
|
case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
|
|
case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
|
|
case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
|
|
case ' ': { break; }
|
|
case ':':
|
|
case '\n':
|
|
case '\0':
|
|
case ']':
|
|
default: { finished = True; }
|
|
}
|
|
}
|
|
|
|
return acct_ctrl;
|
|
}
|
|
|
|
/*************************************************************
|
|
Routine to set 32 hex password characters from a 16 byte array.
|
|
**************************************************************/
|
|
|
|
void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
|
|
{
|
|
if (pwd != NULL) {
|
|
int i;
|
|
for (i = 0; i < 16; i++)
|
|
slprintf(&p[i*2], 3, "%02X", pwd[i]);
|
|
} else {
|
|
if (acct_ctrl & ACB_PWNOTREQ)
|
|
safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
|
|
else
|
|
safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
|
|
}
|
|
}
|
|
|
|
/*************************************************************
|
|
Routine to get the 32 hex characters and turn them
|
|
into a 16 byte array.
|
|
**************************************************************/
|
|
|
|
BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
|
|
{
|
|
int i;
|
|
unsigned char lonybble, hinybble;
|
|
const char *hexchars = "0123456789ABCDEF";
|
|
char *p1, *p2;
|
|
|
|
if (!p)
|
|
return (False);
|
|
|
|
for (i = 0; i < 32; i += 2) {
|
|
hinybble = toupper(p[i]);
|
|
lonybble = toupper(p[i + 1]);
|
|
|
|
p1 = strchr(hexchars, hinybble);
|
|
p2 = strchr(hexchars, lonybble);
|
|
|
|
if (!p1 || !p2)
|
|
return (False);
|
|
|
|
hinybble = PTR_DIFF(p1, hexchars);
|
|
lonybble = PTR_DIFF(p2, hexchars);
|
|
|
|
pwd[i / 2] = (hinybble << 4) | lonybble;
|
|
}
|
|
return (True);
|
|
}
|
|
|
|
int algorithmic_rid_base(void)
|
|
{
|
|
static int rid_offset = 0;
|
|
|
|
if (rid_offset != 0)
|
|
return rid_offset;
|
|
|
|
rid_offset = lp_algorithmic_rid_base();
|
|
|
|
if (rid_offset < BASE_RID) {
|
|
/* Try to prevent admin foot-shooting, we can't put algorithmic
|
|
rids below 1000, that's the 'well known RIDs' on NT */
|
|
DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
|
|
rid_offset = BASE_RID;
|
|
}
|
|
if (rid_offset & 1) {
|
|
DEBUG(0, ("algorithmic rid base must be even\n"));
|
|
rid_offset += 1;
|
|
}
|
|
return rid_offset;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Converts NT user RID to a UNIX uid.
|
|
********************************************************************/
|
|
|
|
uid_t fallback_pdb_user_rid_to_uid(uint32 user_rid)
|
|
{
|
|
int rid_offset = algorithmic_rid_base();
|
|
return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
|
|
}
|
|
|
|
/*******************************************************************
|
|
converts UNIX uid to an NT User RID.
|
|
********************************************************************/
|
|
|
|
uint32 fallback_pdb_uid_to_user_rid(uid_t uid)
|
|
{
|
|
int rid_offset = algorithmic_rid_base();
|
|
return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Converts NT group RID to a UNIX gid.
|
|
********************************************************************/
|
|
|
|
gid_t pdb_group_rid_to_gid(uint32 group_rid)
|
|
{
|
|
int rid_offset = algorithmic_rid_base();
|
|
return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
|
|
}
|
|
|
|
/*******************************************************************
|
|
converts NT Group RID to a UNIX uid.
|
|
|
|
warning: you must not call that function only
|
|
you must do a call to the group mapping first.
|
|
there is not anymore a direct link between the gid and the rid.
|
|
********************************************************************/
|
|
|
|
uint32 pdb_gid_to_group_rid(gid_t gid)
|
|
{
|
|
int rid_offset = algorithmic_rid_base();
|
|
return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Decides if a RID is a well known RID.
|
|
********************************************************************/
|
|
|
|
static BOOL pdb_rid_is_well_known(uint32 rid)
|
|
{
|
|
/* Not using rid_offset here, because this is the actual
|
|
NT fixed value (1000) */
|
|
|
|
return (rid < BASE_RID);
|
|
}
|
|
|
|
/*******************************************************************
|
|
Decides if a RID is a user or group RID.
|
|
********************************************************************/
|
|
|
|
BOOL fallback_pdb_rid_is_user(uint32 rid)
|
|
{
|
|
/* lkcl i understand that NT attaches an enumeration to a RID
|
|
* such that it can be identified as either a user, group etc
|
|
* type. there are 5 such categories, and they are documented.
|
|
*/
|
|
/* However, they are not in the RID, just somthing you can query
|
|
seperatly. Sorry luke :-) */
|
|
|
|
if(pdb_rid_is_well_known(rid)) {
|
|
/*
|
|
* The only well known user RIDs are DOMAIN_USER_RID_ADMIN
|
|
* and DOMAIN_USER_RID_GUEST.
|
|
*/
|
|
if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
|
|
return True;
|
|
} else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
|
|
return True;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a rid into a name. Used in the lookup SID rpc.
|
|
********************************************************************/
|
|
|
|
BOOL local_lookup_sid(DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
|
|
{
|
|
uint32 rid;
|
|
SAM_ACCOUNT *sam_account = NULL;
|
|
GROUP_MAP map;
|
|
|
|
if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)){
|
|
DEBUG(0,("local_lookup_sid: sid_peek_check_rid return False! SID: %s\n",
|
|
sid_string_static(&map.sid)));
|
|
return False;
|
|
}
|
|
*psid_name_use = SID_NAME_UNKNOWN;
|
|
|
|
DEBUG(5,("local_lookup_sid: looking up RID %u.\n", (unsigned int)rid));
|
|
|
|
if (rid == DOMAIN_USER_RID_ADMIN) {
|
|
const char **admin_list = lp_admin_users(-1);
|
|
*psid_name_use = SID_NAME_USER;
|
|
if (admin_list) {
|
|
const char *p = *admin_list;
|
|
if(!next_token(&p, name, NULL, sizeof(fstring)))
|
|
fstrcpy(name, "Administrator");
|
|
} else {
|
|
fstrcpy(name, "Administrator");
|
|
}
|
|
return True;
|
|
}
|
|
|
|
/*
|
|
* Don't try to convert the rid to a name if
|
|
* running in appliance mode
|
|
*/
|
|
|
|
if (lp_hide_local_users())
|
|
return False;
|
|
|
|
if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
|
|
return False;
|
|
}
|
|
|
|
/* see if the passdb can help us with the name of the user */
|
|
if (pdb_getsampwsid(sam_account, sid)) {
|
|
fstrcpy(name, pdb_get_username(sam_account));
|
|
*psid_name_use = SID_NAME_USER;
|
|
|
|
pdb_free_sam(&sam_account);
|
|
|
|
return True;
|
|
}
|
|
|
|
pdb_free_sam(&sam_account);
|
|
|
|
if (pdb_getgrsid(&map, *sid)) {
|
|
if (map.gid!=(gid_t)-1) {
|
|
DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
|
|
} else {
|
|
DEBUG(5,("local_lookup_sid: mapped group %s to no unix gid. Returning name.\n", map.nt_name));
|
|
}
|
|
|
|
fstrcpy(name, map.nt_name);
|
|
*psid_name_use = map.sid_name_use;
|
|
return True;
|
|
}
|
|
|
|
if (fallback_pdb_rid_is_user(rid)) {
|
|
uid_t uid;
|
|
|
|
DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
|
|
|
|
uid = fallback_pdb_user_rid_to_uid(rid);
|
|
slprintf(name, sizeof(fstring)-1, "unix_user.%u", (unsigned int)uid);
|
|
|
|
return False; /* Indicates that this user was 'not mapped' */
|
|
} else {
|
|
gid_t gid;
|
|
struct group *gr;
|
|
|
|
DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
|
|
|
|
gid = pdb_group_rid_to_gid(rid);
|
|
gr = getgrgid(gid);
|
|
|
|
*psid_name_use = SID_NAME_ALIAS;
|
|
|
|
DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
|
|
gr ? "succeeded" : "failed" ));
|
|
|
|
if(!gr) {
|
|
slprintf(name, sizeof(fstring)-1, "unix_group.%u", (unsigned int)gid);
|
|
return False; /* Indicates that this group was 'not mapped' */
|
|
}
|
|
|
|
fstrcpy( name, gr->gr_name);
|
|
|
|
DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
|
|
(unsigned int)rid ));
|
|
return True;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Convert a name into a SID. Used in the lookup name rpc.
|
|
********************************************************************/
|
|
|
|
BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
|
|
{
|
|
extern DOM_SID global_sid_World_Domain;
|
|
DOM_SID local_sid;
|
|
fstring user;
|
|
SAM_ACCOUNT *sam_account = NULL;
|
|
struct group *grp;
|
|
GROUP_MAP map;
|
|
|
|
*psid_name_use = SID_NAME_UNKNOWN;
|
|
|
|
/*
|
|
* user may be quoted a const string, and map_username and
|
|
* friends can modify it. Make a modifiable copy. JRA.
|
|
*/
|
|
|
|
fstrcpy(user, c_user);
|
|
|
|
sid_copy(&local_sid, get_global_sam_sid());
|
|
|
|
/*
|
|
* Special case for MACHINE\Everyone. Map to the world_sid.
|
|
*/
|
|
|
|
if(strequal(user, "Everyone")) {
|
|
sid_copy( psid, &global_sid_World_Domain);
|
|
sid_append_rid(psid, 0);
|
|
*psid_name_use = SID_NAME_ALIAS;
|
|
return True;
|
|
}
|
|
|
|
/*
|
|
* Don't lookup local unix users if running in appliance mode
|
|
*/
|
|
if (lp_hide_local_users())
|
|
return False;
|
|
|
|
(void)map_username(user);
|
|
|
|
if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
|
|
return False;
|
|
}
|
|
|
|
if (pdb_getsampwnam(sam_account, user)) {
|
|
sid_copy(psid, pdb_get_user_sid(sam_account));
|
|
*psid_name_use = SID_NAME_USER;
|
|
|
|
pdb_free_sam(&sam_account);
|
|
return True;
|
|
}
|
|
|
|
pdb_free_sam(&sam_account);
|
|
|
|
/*
|
|
* Maybe it was a group ?
|
|
*/
|
|
|
|
/* check if it's a mapped group */
|
|
if (pdb_getgrnam(&map, user)) {
|
|
/* yes it's a mapped group */
|
|
sid_copy(&local_sid, &map.sid);
|
|
*psid_name_use = map.sid_name_use;
|
|
} else {
|
|
/* it's not a mapped group */
|
|
grp = getgrnam(user);
|
|
if(!grp)
|
|
return False;
|
|
|
|
/*
|
|
*check if it's mapped, if it is reply it doesn't exist
|
|
*
|
|
* that's to prevent this case:
|
|
*
|
|
* unix group ug is mapped to nt group ng
|
|
* someone does a lookup on ug
|
|
* we must not reply as it doesn't "exist" anymore
|
|
* for NT. For NT only ng exists.
|
|
* JFM, 30/11/2001
|
|
*/
|
|
|
|
if (pdb_getgrgid(&map, grp->gr_gid)){
|
|
return False;
|
|
}
|
|
|
|
sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
|
|
*psid_name_use = SID_NAME_ALIAS;
|
|
}
|
|
|
|
sid_copy( psid, &local_sid);
|
|
|
|
return True;
|
|
}
|
|
|
|
/*************************************************************
|
|
Change a password entry in the local smbpasswd file.
|
|
|
|
It is currently being called by SWAT and by smbpasswd.
|
|
|
|
--jerry
|
|
*************************************************************/
|
|
|
|
BOOL local_password_change(const char *user_name, int local_flags,
|
|
const char *new_passwd,
|
|
char *err_str, size_t err_str_len,
|
|
char *msg_str, size_t msg_str_len)
|
|
{
|
|
SAM_ACCOUNT *sam_pass=NULL;
|
|
uint16 other_acb;
|
|
|
|
*err_str = '\0';
|
|
*msg_str = '\0';
|
|
|
|
/* Get the smb passwd entry for this user */
|
|
pdb_init_sam(&sam_pass);
|
|
if(!pdb_getsampwnam(sam_pass, user_name)) {
|
|
pdb_free_sam(&sam_pass);
|
|
|
|
if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
|
|
/* Might not exist in /etc/passwd */
|
|
if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name))) {
|
|
slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
|
|
return False;
|
|
}
|
|
} else {
|
|
slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
|
|
return False;
|
|
}
|
|
} else {
|
|
/* the entry already existed */
|
|
local_flags &= ~LOCAL_ADD_USER;
|
|
}
|
|
|
|
/* the 'other' acb bits not being changed here */
|
|
other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
|
|
if (local_flags & LOCAL_TRUST_ACCOUNT) {
|
|
if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
|
|
slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
} else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
|
|
if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST | other_acb, PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
} else {
|
|
if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL | other_acb, PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We are root - just write the new password
|
|
* and the valid last change time.
|
|
*/
|
|
|
|
if (local_flags & LOCAL_DISABLE_USER) {
|
|
if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED, PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
} else if (local_flags & LOCAL_ENABLE_USER) {
|
|
if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
}
|
|
|
|
if (local_flags & LOCAL_SET_NO_PASSWORD) {
|
|
if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
} else if (local_flags & LOCAL_SET_PASSWORD) {
|
|
/*
|
|
* If we're dealing with setting a completely empty user account
|
|
* ie. One with a password of 'XXXX', but not set disabled (like
|
|
* an account created from scratch) then if the old password was
|
|
* 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
|
|
* We remove that as we're giving this user their first password
|
|
* and the decision hasn't really been made to disable them (ie.
|
|
* don't create them disabled). JRA.
|
|
*/
|
|
if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
|
|
if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
}
|
|
if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
|
|
if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
}
|
|
|
|
if (local_flags & LOCAL_ADD_USER) {
|
|
if (pdb_add_sam_account(sam_pass)) {
|
|
slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return True;
|
|
} else {
|
|
slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
} else if (local_flags & LOCAL_DELETE_USER) {
|
|
if (!pdb_delete_sam_account(sam_pass)) {
|
|
slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
|
|
} else {
|
|
if(!pdb_update_sam_account(sam_pass)) {
|
|
slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
|
|
pdb_free_sam(&sam_pass);
|
|
return False;
|
|
}
|
|
if(local_flags & LOCAL_DISABLE_USER)
|
|
slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
|
|
else if (local_flags & LOCAL_ENABLE_USER)
|
|
slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
|
|
else if (local_flags & LOCAL_SET_NO_PASSWORD)
|
|
slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
|
|
}
|
|
|
|
pdb_free_sam(&sam_pass);
|
|
return True;
|
|
}
|