mirror of
https://github.com/samba-team/samba.git
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acb81fe408
Zero out some of the plaintext passwords for paranoia
Fix up some of the other passdb backends with the change to *uid_t rather than
uid_t.
Make some of the code in srv_netlog_nt.c clearer, is passing an array around,
so pass its lenght in is definition, not as a seperate paramater.
Use sizeof() rather than magic numbers, it makes things easier to read.
Cope with a PAM authenticated user who is not in /etc/passwd - currently by
saying NO_SUCH_USER, but this can change in future.
Andrew Bartlett
(This used to be commit 514c91b16b)
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 2.2
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Password and authentication handling
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Copyright (C) Andrew Bartlett 2001
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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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/****************************************************************************
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update the encrypted smbpasswd file from the plaintext username and password
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this ugly hack needs to die, but not quite yet...
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*****************************************************************************/
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static BOOL update_smbpassword_file(char *user, char *password)
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{
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SAM_ACCOUNT *sampass = NULL;
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BOOL ret;
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pdb_init_sam(&sampass);
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become_root();
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ret = pdb_getsampwnam(sampass, user);
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unbecome_root();
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if(ret == False) {
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DEBUG(0,("pdb_getsampwnam returned NULL\n"));
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pdb_free_sam(&sampass);
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return False;
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}
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/*
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* Remove the account disabled flag - we are updating the
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* users password from a login.
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*/
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if (!pdb_set_acct_ctrl(sampass, pdb_get_acct_ctrl(sampass) & ~ACB_DISABLED)) {
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pdb_free_sam(&sampass);
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return False;
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}
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if (!pdb_set_plaintext_passwd (sampass, password)) {
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pdb_free_sam(&sampass);
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return False;
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}
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/* Now write it into the file. */
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become_root();
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/* Here, the override flag is True, because we want to ignore the
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XXXXXXX'd out password */
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ret = pdb_update_sam_account (sampass, True);
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unbecome_root();
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if (ret) {
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DEBUG(3,("pdb_update_sam_account returned %d\n",ret));
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}
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memset(password, '\0', strlen(password));
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pdb_free_sam(&sampass);
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return ret;
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}
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/****************************************************************************
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check if a username/password is OK assuming the password
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in PLAIN TEXT
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****************************************************************************/
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NTSTATUS check_unix_security(const auth_usersupplied_info *user_info, auth_serversupplied_info **server_info)
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{
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NTSTATUS nt_status;
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struct passwd *pass = NULL;
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become_root();
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pass = Get_Pwnam(user_info->internal_username.str);
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nt_status = pass_check(pass,
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pass ? pass->pw_name : user_info->internal_username.str,
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(char *)user_info->plaintext_password.data,
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user_info->plaintext_password.length-1,
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lp_update_encrypted() ?
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update_smbpassword_file : NULL,
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True);
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unbecome_root();
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if NT_STATUS_IS_OK(nt_status) {
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if (pass) {
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make_server_info_pw(server_info, pass);
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} else {
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nt_status = NT_STATUS_NO_SUCH_USER;
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}
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}
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return nt_status;
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}
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