/*
- Unix SMB/Netbios implementation.
- Version 2.2
+ Unix SMB/CIFS implementation.
Password and authentication handling
Copyright (C) Andrew Bartlett 2001
-
+
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 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
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.
-
+
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-/****************************************************************************
-update the encrypted smbpasswd file from the plaintext username and password
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
-this ugly hack needs to die, but not quite yet...
-*****************************************************************************/
-static BOOL update_smbpassword_file(char *user, char *password)
+/**
+ * update the encrypted smbpasswd file from the plaintext username and password
+ *
+ * this ugly hack needs to die, but not quite yet, I think people still use it...
+ **/
+static bool update_smbpassword_file(const char *user, const char *password)
{
- SAM_ACCOUNT *sampass = NULL;
- BOOL ret;
-
- pdb_init_sam(&sampass);
-
+ struct samu *sampass;
+ bool ret;
+
+ if ( !(sampass = samu_new( NULL )) ) {
+ return False;
+ }
+
become_root();
ret = pdb_getsampwnam(sampass, user);
unbecome_root();
if(ret == False) {
DEBUG(0,("pdb_getsampwnam returned NULL\n"));
- pdb_free_sam(&sampass);
+ TALLOC_FREE(sampass);
return False;
}
* Remove the account disabled flag - we are updating the
* users password from a login.
*/
- if (!pdb_set_acct_ctrl(sampass, pdb_get_acct_ctrl(sampass) & ~ACB_DISABLED)) {
- pdb_free_sam(&sampass);
+ if (!pdb_set_acct_ctrl(sampass, pdb_get_acct_ctrl(sampass) & ~ACB_DISABLED, PDB_CHANGED)) {
+ TALLOC_FREE(sampass);
return False;
}
if (!pdb_set_plaintext_passwd (sampass, password)) {
- pdb_free_sam(&sampass);
+ TALLOC_FREE(sampass);
return False;
}
/* Now write it into the file. */
become_root();
- /* Here, the override flag is True, because we want to ignore the
- XXXXXXX'd out password */
- ret = pdb_update_sam_account (sampass, True);
+ ret = NT_STATUS_IS_OK(pdb_update_sam_account (sampass));
unbecome_root();
DEBUG(3,("pdb_update_sam_account returned %d\n",ret));
}
- memset(password, '\0', strlen(password));
-
- pdb_free_sam(&sampass);
+ TALLOC_FREE(sampass);
return ret;
}
-/****************************************************************************
-check if a username/password is OK assuming the password
-in PLAIN TEXT
-****************************************************************************/
+/** Check a plaintext username/password
+ *
+ * Cannot deal with an encrupted password in any manner whatsoever,
+ * unless the account has a null password.
+ **/
-NTSTATUS check_unix_security(const auth_usersupplied_info *user_info, auth_serversupplied_info *server_info)
+static NTSTATUS check_unix_security(const struct auth_context *auth_context,
+ void *my_private_data,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
{
NTSTATUS nt_status;
struct passwd *pass = NULL;
+ DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
become_root();
-
- pass = Get_Pwnam(user_info->unix_username.str, False);
+ pass = Get_Pwnam_alloc(talloc_tos(), user_info->mapped.account_name);
+ /** @todo This call assumes a ASCII password, no charset transformation is
+ done. We may need to revisit this **/
nt_status = pass_check(pass,
- pass ? pass->pw_name : user_info->unix_username.str,
- user_info->plaintext_password.str,
- user_info->plaintext_password.len,
+ pass ? pass->pw_name : user_info->mapped.account_name,
+ user_info->password.plaintext,
lp_update_encrypted() ?
update_smbpassword_file : NULL,
True);
unbecome_root();
+ if (NT_STATUS_IS_OK(nt_status)) {
+ if (pass) {
+ /* if a real user check pam account restrictions */
+ /* only really perfomed if "obey pam restriction" is true */
+ nt_status = smb_pam_accountcheck(pass->pw_name);
+ if ( !NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(1, ("PAM account restriction prevents user login\n"));
+ } else {
+ make_server_info_pw(server_info, pass->pw_name, pass);
+ }
+ } else {
+ /* we need to do somthing more useful here */
+ nt_status = NT_STATUS_NO_SUCH_USER;
+ }
+ }
+
+ TALLOC_FREE(pass);
return nt_status;
}
+
+/* module initialisation */
+static NTSTATUS auth_init_unix(struct auth_context *auth_context, const char* param, auth_methods **auth_method)
+{
+ struct auth_methods *result;
+
+ result = TALLOC_ZERO_P(auth_context, struct auth_methods);
+ if (result == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ result->name = "unix";
+ result->auth = check_unix_security;
+
+ *auth_method = result;
+ return NT_STATUS_OK;
+}
+
+NTSTATUS auth_unix_init(void)
+{
+ return smb_register_auth(AUTH_INTERFACE_VERSION, "unix", auth_init_unix);
+}
git.samba.org / abartlet / samba.git / .git / blobdiff