mirror of
https://github.com/samba-team/samba.git
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5eee23cc64
- Fill in the 'backup' idea of a domain, if the DC didn't supply one. This
doesn't seem to occour in reality, hence why we missed the typo.
lib/charcnv.c:
lib/smbldap.c:
libads/ldap.c:
libsmb/libsmbclient.c:
printing/nt_printing.c:
- all the callers to pull_utf8_allocate() pass a char ** as the first
parammeter, so don't make them all cast it to a void **
nsswitch/winbind_util.c:
- Allow for a more 'correct' view of when usernames should be qualified
in winbindd. If we are a PDC, or have 'winbind trusted domains only',
then for the authentication returns stip the domain portion.
- Fix valgrind warning about use of free()ed name when looking up our
local domain. lp_workgroup() is maniplated inside a procedure that
uses it's former value. Instead, use the fact that our local domain is
always the first in the list.
Andrew Bartlett
(This used to be commit 494781f628
)
1459 lines
43 KiB
C
1459 lines
43 KiB
C
/*
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Unix SMB/CIFS implementation.
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Authentication utility functions
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Andrew Bartlett 2001
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Copyright (C) Jeremy Allison 2000-2001
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Copyright (C) Rafal Szczesniak 2002
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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_AUTH
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extern DOM_SID global_sid_World;
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extern DOM_SID global_sid_Network;
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extern DOM_SID global_sid_Builtin_Guests;
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extern DOM_SID global_sid_Authenticated_Users;
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/****************************************************************************
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Create a UNIX user on demand.
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****************************************************************************/
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static int smb_create_user(const char *domain, const char *unix_username, const char *homedir)
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{
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pstring add_script;
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int ret;
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pstrcpy(add_script, lp_adduser_script());
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if (! *add_script)
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return -1;
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all_string_sub(add_script, "%u", unix_username, sizeof(pstring));
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if (domain)
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all_string_sub(add_script, "%D", domain, sizeof(pstring));
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if (homedir)
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all_string_sub(add_script, "%H", homedir, sizeof(pstring));
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ret = smbrun(add_script,NULL);
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DEBUG(3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
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return ret;
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}
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/****************************************************************************
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Add and Delete UNIX users on demand, based on NTSTATUS codes.
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We don't care about RID's here so ignore.
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****************************************************************************/
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void auth_add_user_script(const char *domain, const char *username)
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{
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uint32 rid;
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/*
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* User validated ok against Domain controller.
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* If the admin wants us to try and create a UNIX
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* user on the fly, do so.
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*/
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if ( *lp_adduser_script() )
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smb_create_user(domain, username, NULL);
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else {
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DEBUG(10,("auth_add_user_script: no 'add user script'. Asking winbindd\n"));
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/* should never get here is we a re a domain member running winbindd
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However, a host set for 'security = server' might run winbindd for
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account allocation */
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if ( !winbind_create_user(username, NULL) ) {
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DEBUG(5,("auth_add_user_script: winbindd_create_user() failed\n"));
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rid = 0;
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}
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}
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}
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/****************************************************************************
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Create a SAM_ACCOUNT - either by looking in the pdb, or by faking it up from
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unix info.
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****************************************************************************/
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NTSTATUS auth_get_sam_account(const char *user, SAM_ACCOUNT **account)
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{
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BOOL pdb_ret;
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NTSTATUS nt_status;
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if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(account))) {
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return nt_status;
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}
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become_root();
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pdb_ret = pdb_getsampwnam(*account, user);
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unbecome_root();
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if (!pdb_ret) {
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struct passwd *pass = Get_Pwnam(user);
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if (!pass)
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return NT_STATUS_NO_SUCH_USER;
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if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*account, pass))) {
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return nt_status;
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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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Create an auth_usersupplied_data structure
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****************************************************************************/
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static NTSTATUS make_user_info(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *internal_username,
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const char *client_domain,
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const char *domain,
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const char *wksta_name,
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DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
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DATA_BLOB plaintext,
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uint32 auth_flags, BOOL encrypted)
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{
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DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
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*user_info = malloc(sizeof(**user_info));
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if (!user_info) {
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DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
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return NT_STATUS_NO_MEMORY;
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}
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ZERO_STRUCTP(*user_info);
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DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
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(*user_info)->smb_name.str = strdup(smb_name);
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if ((*user_info)->smb_name.str) {
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(*user_info)->smb_name.len = strlen(smb_name);
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} else {
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free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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}
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(*user_info)->internal_username.str = strdup(internal_username);
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if ((*user_info)->internal_username.str) {
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(*user_info)->internal_username.len = strlen(internal_username);
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} else {
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free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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}
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(*user_info)->domain.str = strdup(domain);
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if ((*user_info)->domain.str) {
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(*user_info)->domain.len = strlen(domain);
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} else {
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free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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}
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(*user_info)->client_domain.str = strdup(client_domain);
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if ((*user_info)->client_domain.str) {
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(*user_info)->client_domain.len = strlen(client_domain);
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} else {
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free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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}
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(*user_info)->wksta_name.str = strdup(wksta_name);
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if ((*user_info)->wksta_name.str) {
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(*user_info)->wksta_name.len = strlen(wksta_name);
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} else {
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free_user_info(user_info);
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return NT_STATUS_NO_MEMORY;
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}
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DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
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(*user_info)->lm_resp = data_blob(lm_pwd.data, lm_pwd.length);
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(*user_info)->nt_resp = data_blob(nt_pwd.data, nt_pwd.length);
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(*user_info)->plaintext_password = data_blob(plaintext.data, plaintext.length);
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(*user_info)->encrypted = encrypted;
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(*user_info)->auth_flags = auth_flags;
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DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
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return NT_STATUS_OK;
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}
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/****************************************************************************
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Create an auth_usersupplied_data structure after appropriate mapping.
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****************************************************************************/
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NTSTATUS make_user_info_map(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *client_domain,
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const char *wksta_name,
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DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
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DATA_BLOB plaintext,
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uint32 ntlmssp_flags, BOOL encrypted)
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{
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const char *domain;
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fstring internal_username;
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fstrcpy(internal_username, smb_name);
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map_username(internal_username);
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DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
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client_domain, smb_name, wksta_name));
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/* don't allow "" as a domain, fixes a Win9X bug
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where it doens't supply a domain for logon script
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'net use' commands. */
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if ( *client_domain )
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domain = client_domain;
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else
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domain = lp_workgroup();
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/* do what win2k does. Always map unknown domains to our own
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and let the "passdb backend" handle unknown users. */
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if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
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domain = get_default_sam_name();
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/* we know that it is a trusted domain (and we are allowing them) or it is our domain */
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return make_user_info(user_info, smb_name, internal_username,
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client_domain, domain, wksta_name, lm_pwd, nt_pwd,
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plaintext, ntlmssp_flags, encrypted);
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}
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/****************************************************************************
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Create an auth_usersupplied_data, making the DATA_BLOBs here.
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Decrypt and encrypt the passwords.
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****************************************************************************/
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BOOL make_user_info_netlogon_network(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *client_domain,
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const char *wksta_name,
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const uchar *lm_network_pwd, int lm_pwd_len,
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const uchar *nt_network_pwd, int nt_pwd_len)
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{
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BOOL ret;
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NTSTATUS nt_status;
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DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
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DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
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DATA_BLOB plaintext_blob = data_blob(NULL, 0);
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uint32 auth_flags = AUTH_FLAG_NONE;
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if (lm_pwd_len)
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auth_flags |= AUTH_FLAG_LM_RESP;
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if (nt_pwd_len == 24) {
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auth_flags |= AUTH_FLAG_NTLM_RESP;
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} else if (nt_pwd_len != 0) {
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auth_flags |= AUTH_FLAG_NTLMv2_RESP;
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}
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nt_status = make_user_info_map(user_info,
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smb_name, client_domain,
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wksta_name,
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lm_blob, nt_blob,
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plaintext_blob,
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auth_flags, True);
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ret = NT_STATUS_IS_OK(nt_status) ? True : False;
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data_blob_free(&lm_blob);
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data_blob_free(&nt_blob);
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return ret;
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}
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/****************************************************************************
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Create an auth_usersupplied_data, making the DATA_BLOBs here.
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Decrypt and encrypt the passwords.
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****************************************************************************/
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BOOL make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *client_domain,
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const char *wksta_name,
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const uchar chal[8],
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const uchar lm_interactive_pwd[16],
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const uchar nt_interactive_pwd[16],
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const uchar *dc_sess_key)
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{
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char lm_pwd[16];
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char nt_pwd[16];
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unsigned char local_lm_response[24];
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unsigned char local_nt_response[24];
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unsigned char key[16];
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uint32 auth_flags = AUTH_FLAG_NONE;
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ZERO_STRUCT(key);
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memcpy(key, dc_sess_key, 8);
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if (lm_interactive_pwd) memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
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if (nt_interactive_pwd) memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
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#ifdef DEBUG_PASSWORD
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DEBUG(100,("key:"));
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dump_data(100, (char *)key, sizeof(key));
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DEBUG(100,("lm owf password:"));
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dump_data(100, lm_pwd, sizeof(lm_pwd));
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DEBUG(100,("nt owf password:"));
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dump_data(100, nt_pwd, sizeof(nt_pwd));
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#endif
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SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
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SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
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#ifdef DEBUG_PASSWORD
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DEBUG(100,("decrypt of lm owf password:"));
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dump_data(100, lm_pwd, sizeof(lm_pwd));
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DEBUG(100,("decrypt of nt owf password:"));
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dump_data(100, nt_pwd, sizeof(nt_pwd));
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#endif
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SMBOWFencrypt((const unsigned char *)lm_pwd, chal, local_lm_response);
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SMBOWFencrypt((const unsigned char *)nt_pwd, chal, local_nt_response);
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/* Password info paranoia */
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ZERO_STRUCT(lm_pwd);
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ZERO_STRUCT(nt_pwd);
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ZERO_STRUCT(key);
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{
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BOOL ret;
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NTSTATUS nt_status;
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DATA_BLOB local_lm_blob = data_blob(local_lm_response, sizeof(local_lm_response));
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DATA_BLOB local_nt_blob = data_blob(local_nt_response, sizeof(local_nt_response));
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DATA_BLOB plaintext_blob = data_blob(NULL, 0);
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if (lm_interactive_pwd)
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auth_flags |= AUTH_FLAG_LM_RESP;
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if (nt_interactive_pwd)
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auth_flags |= AUTH_FLAG_NTLM_RESP;
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nt_status = make_user_info_map(user_info,
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smb_name, client_domain,
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wksta_name,
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local_lm_blob,
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local_nt_blob,
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plaintext_blob,
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auth_flags, True);
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ret = NT_STATUS_IS_OK(nt_status) ? True : False;
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data_blob_free(&local_lm_blob);
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data_blob_free(&local_nt_blob);
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return ret;
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}
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}
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/****************************************************************************
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Create an auth_usersupplied_data structure
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****************************************************************************/
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BOOL make_user_info_for_reply(auth_usersupplied_info **user_info,
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const char *smb_name,
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const char *client_domain,
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const uint8 chal[8],
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DATA_BLOB plaintext_password)
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{
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DATA_BLOB local_lm_blob;
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DATA_BLOB local_nt_blob;
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NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
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uint32 auth_flags = AUTH_FLAG_NONE;
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/*
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* Not encrypted - do so.
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*/
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DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted format.\n"));
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if (plaintext_password.data) {
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unsigned char local_lm_response[24];
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#ifdef DEBUG_PASSWORD
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DEBUG(10,("Unencrypted password (len %d):\n",plaintext_password.length));
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dump_data(100, plaintext_password.data, plaintext_password.length);
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#endif
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SMBencrypt( (const char *)plaintext_password.data, (const uchar*)chal, local_lm_response);
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local_lm_blob = data_blob(local_lm_response, 24);
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/* We can't do an NT hash here, as the password needs to be
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case insensitive */
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local_nt_blob = data_blob(NULL, 0);
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auth_flags = (AUTH_FLAG_PLAINTEXT | AUTH_FLAG_LM_RESP);
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} else {
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local_lm_blob = data_blob(NULL, 0);
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local_nt_blob = data_blob(NULL, 0);
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}
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ret = make_user_info_map(user_info, smb_name,
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client_domain,
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get_remote_machine_name(),
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local_lm_blob,
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local_nt_blob,
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plaintext_password,
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auth_flags, False);
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|
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data_blob_free(&local_lm_blob);
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return NT_STATUS_IS_OK(ret) ? True : False;
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}
|
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|
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/****************************************************************************
|
|
Create an auth_usersupplied_data structure
|
|
****************************************************************************/
|
|
|
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NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
|
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const char *smb_name,
|
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const char *client_domain,
|
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DATA_BLOB lm_resp, DATA_BLOB nt_resp)
|
|
{
|
|
uint32 auth_flags = AUTH_FLAG_NONE;
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|
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DATA_BLOB no_plaintext_blob = data_blob(NULL, 0);
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|
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if (lm_resp.length == 24) {
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auth_flags |= AUTH_FLAG_LM_RESP;
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}
|
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if (nt_resp.length == 0) {
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} else if (nt_resp.length == 24) {
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auth_flags |= AUTH_FLAG_NTLM_RESP;
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} else {
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auth_flags |= AUTH_FLAG_NTLMv2_RESP;
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|
}
|
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|
|
return make_user_info_map(user_info, smb_name,
|
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client_domain,
|
|
get_remote_machine_name(),
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|
lm_resp,
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nt_resp,
|
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no_plaintext_blob,
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|
auth_flags, True);
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}
|
|
|
|
/****************************************************************************
|
|
Create a guest user_info blob, for anonymous authenticaion.
|
|
****************************************************************************/
|
|
|
|
BOOL make_user_info_guest(auth_usersupplied_info **user_info)
|
|
{
|
|
DATA_BLOB lm_blob = data_blob(NULL, 0);
|
|
DATA_BLOB nt_blob = data_blob(NULL, 0);
|
|
DATA_BLOB plaintext_blob = data_blob(NULL, 0);
|
|
uint32 auth_flags = AUTH_FLAG_NONE;
|
|
NTSTATUS nt_status;
|
|
|
|
nt_status = make_user_info(user_info,
|
|
"","",
|
|
"","",
|
|
"",
|
|
nt_blob, lm_blob,
|
|
plaintext_blob,
|
|
auth_flags, True);
|
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|
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return NT_STATUS_IS_OK(nt_status) ? True : False;
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}
|
|
|
|
/****************************************************************************
|
|
prints a NT_USER_TOKEN to debug output.
|
|
****************************************************************************/
|
|
|
|
void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
|
|
{
|
|
fstring sid_str;
|
|
size_t i;
|
|
|
|
if (!token) {
|
|
DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
|
|
return;
|
|
}
|
|
|
|
DEBUGC(dbg_class, dbg_lev, ("NT user token of user %s\n",
|
|
sid_to_string(sid_str, &token->user_sids[0]) ));
|
|
DEBUGADDC(dbg_class, dbg_lev, ("contains %lu SIDs\n", (unsigned long)token->num_sids));
|
|
for (i = 0; i < token->num_sids; i++)
|
|
DEBUGADDC(dbg_class, dbg_lev, ("SID[%3lu]: %s\n", (unsigned long)i,
|
|
sid_to_string(sid_str, &token->user_sids[i])));
|
|
}
|
|
|
|
/****************************************************************************
|
|
prints a UNIX 'token' to debug output.
|
|
****************************************************************************/
|
|
|
|
void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid, int n_groups, gid_t *groups)
|
|
{
|
|
int i;
|
|
DEBUGC(dbg_class, dbg_lev, ("UNIX token of user %ld\n", (long int)uid));
|
|
|
|
DEBUGADDC(dbg_class, dbg_lev, ("Primary group is %ld and contains %i supplementary groups\n", (long int)gid, n_groups));
|
|
for (i = 0; i < n_groups; i++)
|
|
DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
|
|
(long int)groups[i]));
|
|
}
|
|
|
|
/****************************************************************************
|
|
Create the SID list for this user.
|
|
****************************************************************************/
|
|
|
|
static NTSTATUS create_nt_user_token(const DOM_SID *user_sid, const DOM_SID *group_sid,
|
|
int n_groupSIDs, DOM_SID *groupSIDs,
|
|
BOOL is_guest, NT_USER_TOKEN **token)
|
|
{
|
|
NTSTATUS nt_status = NT_STATUS_OK;
|
|
NT_USER_TOKEN *ptoken;
|
|
int i;
|
|
int sid_ndx;
|
|
|
|
if ((ptoken = malloc( sizeof(NT_USER_TOKEN) ) ) == NULL) {
|
|
DEBUG(0, ("create_nt_token: Out of memory allocating token\n"));
|
|
nt_status = NT_STATUS_NO_MEMORY;
|
|
return nt_status;
|
|
}
|
|
|
|
ZERO_STRUCTP(ptoken);
|
|
|
|
ptoken->num_sids = n_groupSIDs + 5;
|
|
|
|
if ((ptoken->user_sids = (DOM_SID *)malloc( sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
|
|
DEBUG(0, ("create_nt_token: Out of memory allocating SIDs\n"));
|
|
nt_status = NT_STATUS_NO_MEMORY;
|
|
return nt_status;
|
|
}
|
|
|
|
memset((char*)ptoken->user_sids,0,sizeof(DOM_SID) * ptoken->num_sids);
|
|
|
|
/*
|
|
* Note - user SID *MUST* be first in token !
|
|
* se_access_check depends on this.
|
|
*
|
|
* Primary group SID is second in token. Convention.
|
|
*/
|
|
|
|
sid_copy(&ptoken->user_sids[PRIMARY_USER_SID_INDEX], user_sid);
|
|
if (group_sid)
|
|
sid_copy(&ptoken->user_sids[PRIMARY_GROUP_SID_INDEX], group_sid);
|
|
|
|
/*
|
|
* Finally add the "standard" SIDs.
|
|
* The only difference between guest and "anonymous" (which we
|
|
* don't really support) is the addition of Authenticated_Users.
|
|
*/
|
|
|
|
sid_copy(&ptoken->user_sids[2], &global_sid_World);
|
|
sid_copy(&ptoken->user_sids[3], &global_sid_Network);
|
|
|
|
if (is_guest)
|
|
sid_copy(&ptoken->user_sids[4], &global_sid_Builtin_Guests);
|
|
else
|
|
sid_copy(&ptoken->user_sids[4], &global_sid_Authenticated_Users);
|
|
|
|
sid_ndx = 5; /* next available spot */
|
|
|
|
for (i = 0; i < n_groupSIDs; i++) {
|
|
size_t check_sid_idx;
|
|
for (check_sid_idx = 1; check_sid_idx < ptoken->num_sids; check_sid_idx++) {
|
|
if (sid_equal(&ptoken->user_sids[check_sid_idx],
|
|
&groupSIDs[i])) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (check_sid_idx >= ptoken->num_sids) /* Not found already */ {
|
|
sid_copy(&ptoken->user_sids[sid_ndx++], &groupSIDs[i]);
|
|
} else {
|
|
ptoken->num_sids--;
|
|
}
|
|
}
|
|
|
|
debug_nt_user_token(DBGC_AUTH, 10, ptoken);
|
|
|
|
*token = ptoken;
|
|
|
|
return nt_status;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Create the SID list for this user.
|
|
****************************************************************************/
|
|
|
|
NT_USER_TOKEN *create_nt_token(uid_t uid, gid_t gid, int ngroups, gid_t *groups, BOOL is_guest)
|
|
{
|
|
DOM_SID user_sid;
|
|
DOM_SID group_sid;
|
|
DOM_SID *group_sids;
|
|
NT_USER_TOKEN *token;
|
|
int i;
|
|
|
|
if (!NT_STATUS_IS_OK(uid_to_sid(&user_sid, uid))) {
|
|
return NULL;
|
|
}
|
|
if (!NT_STATUS_IS_OK(gid_to_sid(&group_sid, gid))) {
|
|
return NULL;
|
|
}
|
|
|
|
group_sids = malloc(sizeof(DOM_SID) * ngroups);
|
|
if (!group_sids) {
|
|
DEBUG(0, ("create_nt_token: malloc() failed for DOM_SID list!\n"));
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < ngroups; i++) {
|
|
if (!NT_STATUS_IS_OK(gid_to_sid(&(group_sids)[i], (groups)[i]))) {
|
|
DEBUG(1, ("create_nt_token: failed to convert gid %ld to a sid!\n", (long int)groups[i]));
|
|
SAFE_FREE(group_sids);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (!NT_STATUS_IS_OK(create_nt_user_token(&user_sid, &group_sid,
|
|
ngroups, group_sids, is_guest, &token))) {
|
|
SAFE_FREE(group_sids);
|
|
return NULL;
|
|
}
|
|
|
|
SAFE_FREE(group_sids);
|
|
|
|
return token;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* this function returns the groups (SIDs) of the local SAM the user is in.
|
|
* If this samba server is a DC of the domain the user belongs to, it returns
|
|
* both domain groups and local / builtin groups. If the user is in a trusted
|
|
* domain, or samba is a member server of a domain, then this function returns
|
|
* local and builtin groups the user is a member of.
|
|
*
|
|
* currently this is a hack, as there is no sam implementation that is capable
|
|
* of groups.
|
|
*
|
|
* NOTE!! This function will fail if you pass in a winbind user without
|
|
* the domain --jerry
|
|
******************************************************************************/
|
|
|
|
static NTSTATUS get_user_groups(const char *username, uid_t uid, gid_t gid,
|
|
int *n_groups, DOM_SID **groups, gid_t **unix_groups)
|
|
{
|
|
int n_unix_groups;
|
|
int i;
|
|
|
|
*n_groups = 0;
|
|
*groups = NULL;
|
|
|
|
/* Try winbind first */
|
|
|
|
if ( strchr(username, *lp_winbind_separator()) ) {
|
|
n_unix_groups = winbind_getgroups( username, unix_groups );
|
|
|
|
DEBUG(10,("get_user_groups: winbind_getgroups(%s): result = %s\n", username,
|
|
n_unix_groups == -1 ? "FAIL" : "SUCCESS"));
|
|
|
|
if ( n_unix_groups == -1 )
|
|
return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
|
|
}
|
|
else {
|
|
/* fallback to getgrouplist() */
|
|
|
|
n_unix_groups = groups_max();
|
|
|
|
if ((*unix_groups = malloc( sizeof(gid_t) * n_unix_groups ) ) == NULL) {
|
|
DEBUG(0, ("get_user_groups: Out of memory allocating unix group list\n"));
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
|
|
|
|
gid_t *groups_tmp;
|
|
|
|
groups_tmp = Realloc(*unix_groups, sizeof(gid_t) * n_unix_groups);
|
|
|
|
if (!groups_tmp) {
|
|
SAFE_FREE(*unix_groups);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
*unix_groups = groups_tmp;
|
|
|
|
if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
|
|
DEBUG(0, ("get_user_groups: failed to get the unix group list\n"));
|
|
SAFE_FREE(*unix_groups);
|
|
return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
|
|
}
|
|
}
|
|
}
|
|
|
|
debug_unix_user_token(DBGC_CLASS, 5, uid, gid, n_unix_groups, *unix_groups);
|
|
|
|
/* now setup the space for storing the SIDS */
|
|
|
|
if (n_unix_groups > 0) {
|
|
|
|
*groups = malloc(sizeof(DOM_SID) * n_unix_groups);
|
|
|
|
if (!*groups) {
|
|
DEBUG(0, ("get_user_group: malloc() failed for DOM_SID list!\n"));
|
|
SAFE_FREE(*unix_groups);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
}
|
|
|
|
*n_groups = n_unix_groups;
|
|
|
|
for (i = 0; i < *n_groups; i++) {
|
|
if (!NT_STATUS_IS_OK(gid_to_sid(&(*groups)[i], (*unix_groups)[i]))) {
|
|
DEBUG(1, ("get_user_groups: failed to convert gid %ld to a sid!\n",
|
|
(long int)(*unix_groups)[i+1]));
|
|
SAFE_FREE(*groups);
|
|
SAFE_FREE(*unix_groups);
|
|
return NT_STATUS_NO_SUCH_USER;
|
|
}
|
|
}
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make a user_info struct
|
|
***************************************************************************/
|
|
|
|
static NTSTATUS make_server_info(auth_serversupplied_info **server_info)
|
|
{
|
|
*server_info = malloc(sizeof(**server_info));
|
|
if (!*server_info) {
|
|
DEBUG(0,("make_server_info: malloc failed!\n"));
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
ZERO_STRUCTP(*server_info);
|
|
|
|
/* Initialise the uid and gid values to something non-zero
|
|
which may save us from giving away root access if there
|
|
is a bug in allocating these fields. */
|
|
|
|
(*server_info)->uid = -1;
|
|
(*server_info)->gid = -1;
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Fill a server_info struct from a SAM_ACCOUNT with their groups
|
|
***************************************************************************/
|
|
|
|
static NTSTATUS add_user_groups(auth_serversupplied_info **server_info,
|
|
SAM_ACCOUNT *sampass,
|
|
uid_t uid, gid_t gid)
|
|
{
|
|
NTSTATUS nt_status;
|
|
const DOM_SID *user_sid = pdb_get_user_sid(sampass);
|
|
const DOM_SID *group_sid = pdb_get_group_sid(sampass);
|
|
int n_groupSIDs = 0;
|
|
DOM_SID *groupSIDs = NULL;
|
|
gid_t *unix_groups = NULL;
|
|
NT_USER_TOKEN *token;
|
|
BOOL is_guest;
|
|
uint32 rid;
|
|
|
|
nt_status = get_user_groups(pdb_get_username(sampass), uid, gid,
|
|
&n_groupSIDs, &groupSIDs, &unix_groups);
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status)) {
|
|
DEBUG(4,("get_user_groups_from_local_sam failed\n"));
|
|
free_server_info(server_info);
|
|
return nt_status;
|
|
}
|
|
|
|
is_guest = (sid_peek_rid(user_sid, &rid) && rid == DOMAIN_USER_RID_GUEST);
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = create_nt_user_token(user_sid, group_sid,
|
|
n_groupSIDs, groupSIDs, is_guest,
|
|
&token)))
|
|
{
|
|
DEBUG(4,("create_nt_user_token failed\n"));
|
|
SAFE_FREE(groupSIDs);
|
|
SAFE_FREE(unix_groups);
|
|
free_server_info(server_info);
|
|
return nt_status;
|
|
}
|
|
|
|
SAFE_FREE(groupSIDs);
|
|
|
|
(*server_info)->n_groups = n_groupSIDs;
|
|
(*server_info)->groups = unix_groups;
|
|
(*server_info)->ptok = token;
|
|
|
|
return nt_status;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make (and fill) a user_info struct from a SAM_ACCOUNT
|
|
***************************************************************************/
|
|
|
|
NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
|
|
SAM_ACCOUNT *sampass)
|
|
{
|
|
NTSTATUS nt_status;
|
|
struct passwd *pwd;
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info)))
|
|
return nt_status;
|
|
|
|
(*server_info)->sam_account = sampass;
|
|
|
|
if ( !(pwd = getpwnam_alloc(pdb_get_username(sampass))) ) {
|
|
DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
|
|
pdb_get_username(sampass)));
|
|
free_server_info(server_info);
|
|
return NT_STATUS_NO_SUCH_USER;
|
|
}
|
|
(*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
|
|
(*server_info)->gid = pwd->pw_gid;
|
|
(*server_info)->uid = pwd->pw_uid;
|
|
|
|
passwd_free(&pwd);
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, sampass,
|
|
(*server_info)->uid,
|
|
(*server_info)->gid))) {
|
|
free_server_info(server_info);
|
|
return nt_status;
|
|
}
|
|
|
|
(*server_info)->sam_fill_level = SAM_FILL_ALL;
|
|
DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
|
|
pdb_get_username(sampass),
|
|
(*server_info)->unix_name));
|
|
|
|
return nt_status;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make (and fill) a user_info struct from a 'struct passwd' by conversion
|
|
to a SAM_ACCOUNT
|
|
***************************************************************************/
|
|
|
|
NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info, const struct passwd *pwd)
|
|
{
|
|
NTSTATUS nt_status;
|
|
SAM_ACCOUNT *sampass = NULL;
|
|
if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
|
|
return nt_status;
|
|
}
|
|
if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
|
|
return nt_status;
|
|
}
|
|
|
|
(*server_info)->sam_account = sampass;
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, sampass, pwd->pw_uid, pwd->pw_gid))) {
|
|
return nt_status;
|
|
}
|
|
|
|
(*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
|
|
|
|
(*server_info)->sam_fill_level = SAM_FILL_ALL;
|
|
(*server_info)->uid = pwd->pw_uid;
|
|
(*server_info)->gid = pwd->pw_gid;
|
|
return nt_status;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make (and fill) a user_info struct for a guest login.
|
|
***************************************************************************/
|
|
|
|
NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
|
|
{
|
|
NTSTATUS nt_status;
|
|
SAM_ACCOUNT *sampass = NULL;
|
|
DOM_SID guest_sid;
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
|
|
return nt_status;
|
|
}
|
|
|
|
sid_copy(&guest_sid, get_global_sam_sid());
|
|
sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
|
|
|
|
become_root();
|
|
if (!pdb_getsampwsid(sampass, &guest_sid)) {
|
|
unbecome_root();
|
|
return NT_STATUS_NO_SUCH_USER;
|
|
}
|
|
unbecome_root();
|
|
|
|
nt_status = make_server_info_sam(server_info, sampass);
|
|
|
|
if (NT_STATUS_IS_OK(nt_status)) {
|
|
static const char zeros[16];
|
|
(*server_info)->guest = True;
|
|
|
|
/* annoying, but the Guest really does have a session key,
|
|
and it is all zeros! */
|
|
(*server_info)->nt_session_key = data_blob(zeros, sizeof(zeros));
|
|
(*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
|
|
}
|
|
|
|
return nt_status;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Purely internal function for make_server_info_info3
|
|
Fill the sam account from getpwnam
|
|
***************************************************************************/
|
|
static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
|
|
const char *domain,
|
|
const char *username,
|
|
char **found_username,
|
|
uid_t *uid, gid_t *gid,
|
|
SAM_ACCOUNT **sam_account)
|
|
{
|
|
fstring dom_user;
|
|
struct passwd *passwd;
|
|
|
|
fstr_sprintf(dom_user, "%s%s%s", domain, lp_winbind_separator(),
|
|
username);
|
|
|
|
passwd = Get_Pwnam(dom_user);
|
|
|
|
if ( passwd ) {
|
|
char *p;
|
|
|
|
/* make sure we get the case of the username correct */
|
|
/* work around 'winbind use default domain = yes' */
|
|
|
|
p = strchr( passwd->pw_name, *lp_winbind_separator() );
|
|
if ( !p )
|
|
fstr_sprintf(dom_user, "%s%s%s", domain,
|
|
lp_winbind_separator(), passwd->pw_name);
|
|
else
|
|
fstrcpy( dom_user, passwd->pw_name );
|
|
}
|
|
else {
|
|
/* if the lookup for DOMAIN\username failed, try again
|
|
with just 'username'. This is need for accessing the server
|
|
as a trust user that actually maps to a local account */
|
|
|
|
fstrcpy( dom_user, username );
|
|
passwd = Get_Pwnam( dom_user );
|
|
|
|
/* make sure we get the case of the username correct */
|
|
if ( passwd )
|
|
fstrcpy( dom_user, passwd->pw_name );
|
|
}
|
|
|
|
if ( !passwd )
|
|
return NT_STATUS_NO_SUCH_USER;
|
|
|
|
*uid = passwd->pw_uid;
|
|
*gid = passwd->pw_gid;
|
|
|
|
/* This is pointless -- there is no suport for differeing
|
|
unix and windows names. Make sure to always store the
|
|
one we actually looked up and succeeded. Have I mentioned
|
|
why I hate the 'winbind use default domain' parameter?
|
|
--jerry */
|
|
|
|
*found_username = talloc_strdup(mem_ctx, dom_user);
|
|
|
|
DEBUG(5,("fill_sam_account: located username was [%s]\n",
|
|
*found_username));
|
|
|
|
return pdb_init_sam_pw(sam_account, passwd);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Wrapper to allow the getpwnam() call to strip the domain name and
|
|
try again in case a local UNIX user is already there. Also run through
|
|
the username if we fallback to the username only.
|
|
****************************************************************************/
|
|
|
|
struct passwd *smb_getpwnam( char *domuser )
|
|
{
|
|
struct passwd *pw = NULL;
|
|
char *p;
|
|
fstring mapped_username;
|
|
|
|
pw = Get_Pwnam( domuser );
|
|
if ( pw )
|
|
return pw;
|
|
|
|
/* fallback to looking up just the username */
|
|
|
|
p = strchr( domuser, *lp_winbind_separator() );
|
|
|
|
if ( p ) {
|
|
p += 1;
|
|
fstrcpy( mapped_username, p );
|
|
map_username( mapped_username );
|
|
pw = Get_Pwnam(mapped_username);
|
|
if (!pw) {
|
|
/* Don't add a machine account. */
|
|
if (mapped_username[strlen(mapped_username)-1] == '$')
|
|
return NULL;
|
|
|
|
/* Create local user if requested. */
|
|
p = strchr( mapped_username, *lp_winbind_separator() );
|
|
if (p)
|
|
p += 1;
|
|
else
|
|
p = mapped_username;
|
|
auth_add_user_script(NULL, p);
|
|
return Get_Pwnam(p);
|
|
}
|
|
}
|
|
|
|
return pw;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make a server_info struct from the info3 returned by a domain logon
|
|
***************************************************************************/
|
|
|
|
NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
|
|
const char *internal_username,
|
|
const char *sent_nt_username,
|
|
const char *domain,
|
|
auth_serversupplied_info **server_info,
|
|
NET_USER_INFO_3 *info3)
|
|
{
|
|
static const char zeros[16];
|
|
|
|
NTSTATUS nt_status = NT_STATUS_OK;
|
|
char *found_username;
|
|
const char *nt_domain;
|
|
const char *nt_username;
|
|
|
|
SAM_ACCOUNT *sam_account = NULL;
|
|
DOM_SID user_sid;
|
|
DOM_SID group_sid;
|
|
|
|
uid_t uid;
|
|
gid_t gid;
|
|
|
|
int n_lgroupSIDs;
|
|
DOM_SID *lgroupSIDs = NULL;
|
|
|
|
gid_t *unix_groups = NULL;
|
|
NT_USER_TOKEN *token;
|
|
|
|
DOM_SID *all_group_SIDs;
|
|
size_t i;
|
|
|
|
/*
|
|
Here is where we should check the list of
|
|
trusted domains, and verify that the SID
|
|
matches.
|
|
*/
|
|
|
|
sid_copy(&user_sid, &info3->dom_sid.sid);
|
|
if (!sid_append_rid(&user_sid, info3->user_rid)) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
sid_copy(&group_sid, &info3->dom_sid.sid);
|
|
if (!sid_append_rid(&group_sid, info3->group_rid)) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
|
|
/* If the server didn't give us one, just use the one we sent them */
|
|
nt_username = sent_nt_username;
|
|
}
|
|
|
|
if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
|
|
/* If the server didn't give us one, just use the one we sent them */
|
|
nt_domain = domain;
|
|
}
|
|
|
|
/* try to fill the SAM account.. If getpwnam() fails, then try the
|
|
add user script (2.2.x behavior) */
|
|
|
|
nt_status = fill_sam_account(mem_ctx, nt_domain, internal_username,
|
|
&found_username, &uid, &gid, &sam_account);
|
|
|
|
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
|
|
DEBUG(3,("User %s does not exist, trying to add it\n",
|
|
internal_username));
|
|
auth_add_user_script(nt_domain, internal_username);
|
|
nt_status = fill_sam_account(mem_ctx, nt_domain,
|
|
internal_username, &found_username,
|
|
&uid, &gid, &sam_account);
|
|
}
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status)) {
|
|
DEBUG(0, ("make_server_info_info3: pdb_init_sam failed!\n"));
|
|
return nt_status;
|
|
}
|
|
|
|
if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
if (!pdb_set_fullname(sam_account, unistr2_static(&(info3->uni_full_name)),
|
|
PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_logon_script(sam_account, unistr2_static(&(info3->uni_logon_script)), PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_profile_path(sam_account, unistr2_static(&(info3->uni_profile_path)), PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_homedir(sam_account, unistr2_static(&(info3->uni_home_dir)), PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!pdb_set_dir_drive(sam_account, unistr2_static(&(info3->uni_dir_drive)), PDB_CHANGED)) {
|
|
pdb_free_sam(&sam_account);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
|
|
DEBUG(4, ("make_server_info failed!\n"));
|
|
pdb_free_sam(&sam_account);
|
|
return nt_status;
|
|
}
|
|
|
|
/* save this here to _net_sam_logon() doesn't fail (it assumes a
|
|
valid SAM_ACCOUNT) */
|
|
|
|
(*server_info)->sam_account = sam_account;
|
|
|
|
(*server_info)->unix_name = smb_xstrdup(found_username);
|
|
|
|
/* Fill in the unix info we found on the way */
|
|
|
|
(*server_info)->sam_fill_level = SAM_FILL_ALL;
|
|
(*server_info)->uid = uid;
|
|
(*server_info)->gid = gid;
|
|
|
|
/* Store the user group information in the server_info
|
|
returned to the caller. */
|
|
|
|
nt_status = get_user_groups((*server_info)->unix_name,
|
|
uid, gid, &n_lgroupSIDs, &lgroupSIDs, &unix_groups);
|
|
|
|
if ( !NT_STATUS_IS_OK(nt_status) ) {
|
|
DEBUG(4,("get_user_groups failed\n"));
|
|
return nt_status;
|
|
}
|
|
|
|
(*server_info)->groups = unix_groups;
|
|
(*server_info)->n_groups = n_lgroupSIDs;
|
|
|
|
/* Create a 'combined' list of all SIDs we might want in the SD */
|
|
|
|
all_group_SIDs = malloc(sizeof(DOM_SID) * (info3->num_groups2 +info3->num_other_sids));
|
|
|
|
if (!all_group_SIDs) {
|
|
DEBUG(0, ("malloc() failed for DOM_SID list!\n"));
|
|
SAFE_FREE(lgroupSIDs);
|
|
free_server_info(server_info);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
#if 0 /* JERRY -- no such thing as local groups in current code */
|
|
/* Copy the 'local' sids */
|
|
memcpy(all_group_SIDs, lgroupSIDs, sizeof(DOM_SID) * n_lgroupSIDs);
|
|
SAFE_FREE(lgroupSIDs);
|
|
#endif
|
|
|
|
/* and create (by appending rids) the 'domain' sids */
|
|
|
|
for (i = 0; i < info3->num_groups2; i++) {
|
|
|
|
sid_copy(&all_group_SIDs[i], &(info3->dom_sid.sid));
|
|
|
|
if (!sid_append_rid(&all_group_SIDs[i], info3->gids[i].g_rid)) {
|
|
|
|
nt_status = NT_STATUS_INVALID_PARAMETER;
|
|
|
|
DEBUG(3,("could not append additional group rid 0x%x\n",
|
|
info3->gids[i].g_rid));
|
|
|
|
SAFE_FREE(lgroupSIDs);
|
|
free_server_info(server_info);
|
|
|
|
return nt_status;
|
|
|
|
}
|
|
}
|
|
|
|
/* Copy 'other' sids. We need to do sid filtering here to
|
|
prevent possible elevation of privileges. See:
|
|
|
|
http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
|
|
*/
|
|
|
|
for (i = 0; i < info3->num_other_sids; i++) {
|
|
sid_copy(&all_group_SIDs[info3->num_groups2 + i],
|
|
&info3->other_sids[i].sid);
|
|
}
|
|
|
|
/* Where are the 'global' sids... */
|
|
|
|
/* can the user be guest? if yes, where is it stored? */
|
|
|
|
nt_status = create_nt_user_token(&user_sid, &group_sid,
|
|
info3->num_groups2 + info3->num_other_sids,
|
|
all_group_SIDs, False, &token);
|
|
|
|
if ( !NT_STATUS_IS_OK(nt_status) ) {
|
|
DEBUG(4,("create_nt_user_token failed\n"));
|
|
SAFE_FREE(all_group_SIDs);
|
|
free_server_info(server_info);
|
|
return nt_status;
|
|
}
|
|
|
|
(*server_info)->ptok = token;
|
|
|
|
SAFE_FREE(all_group_SIDs);
|
|
|
|
/* ensure we are never given NULL session keys */
|
|
|
|
if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
|
|
(*server_info)->nt_session_key = data_blob(NULL, 0);
|
|
} else {
|
|
(*server_info)->nt_session_key = data_blob(info3->user_sess_key, sizeof(info3->user_sess_key));
|
|
}
|
|
|
|
if (memcmp(info3->padding, zeros, sizeof(zeros)) == 0) {
|
|
(*server_info)->lm_session_key = data_blob(NULL, 0);
|
|
} else {
|
|
(*server_info)->lm_session_key = data_blob(info3->padding, 16);
|
|
}
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/***************************************************************************
|
|
Free a user_info struct
|
|
***************************************************************************/
|
|
|
|
void free_user_info(auth_usersupplied_info **user_info)
|
|
{
|
|
DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
|
|
if (*user_info != NULL) {
|
|
if ((*user_info)->smb_name.str) {
|
|
DEBUG(10,("structure was created for %s\n", (*user_info)->smb_name.str));
|
|
}
|
|
SAFE_FREE((*user_info)->smb_name.str);
|
|
SAFE_FREE((*user_info)->internal_username.str);
|
|
SAFE_FREE((*user_info)->client_domain.str);
|
|
SAFE_FREE((*user_info)->domain.str);
|
|
SAFE_FREE((*user_info)->wksta_name.str);
|
|
data_blob_free(&(*user_info)->lm_resp);
|
|
data_blob_free(&(*user_info)->nt_resp);
|
|
SAFE_FREE((*user_info)->interactive_password);
|
|
data_blob_clear_free(&(*user_info)->plaintext_password);
|
|
ZERO_STRUCT(**user_info);
|
|
}
|
|
SAFE_FREE(*user_info);
|
|
}
|
|
|
|
/***************************************************************************
|
|
Clear out a server_info struct that has been allocated
|
|
***************************************************************************/
|
|
|
|
void free_server_info(auth_serversupplied_info **server_info)
|
|
{
|
|
DEBUG(5,("attempting to free (and zero) a server_info structure\n"));
|
|
if (*server_info != NULL) {
|
|
pdb_free_sam(&(*server_info)->sam_account);
|
|
|
|
/* call pam_end here, unless we know we are keeping it */
|
|
delete_nt_token( &(*server_info)->ptok );
|
|
SAFE_FREE((*server_info)->groups);
|
|
SAFE_FREE((*server_info)->unix_name);
|
|
data_blob_free(&(*server_info)->lm_session_key);
|
|
data_blob_free(&(*server_info)->nt_session_key);
|
|
ZERO_STRUCT(**server_info);
|
|
}
|
|
SAFE_FREE(*server_info);
|
|
}
|
|
|
|
/***************************************************************************
|
|
Make an auth_methods struct
|
|
***************************************************************************/
|
|
|
|
BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
|
|
{
|
|
if (!auth_context) {
|
|
smb_panic("no auth_context supplied to make_auth_methods()!\n");
|
|
}
|
|
|
|
if (!auth_method) {
|
|
smb_panic("make_auth_methods: pointer to auth_method pointer is NULL!\n");
|
|
}
|
|
|
|
*auth_method = talloc(auth_context->mem_ctx, sizeof(**auth_method));
|
|
if (!*auth_method) {
|
|
DEBUG(0,("make_auth_method: malloc failed!\n"));
|
|
return False;
|
|
}
|
|
ZERO_STRUCTP(*auth_method);
|
|
|
|
return True;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Delete a SID token.
|
|
****************************************************************************/
|
|
|
|
void delete_nt_token(NT_USER_TOKEN **pptoken)
|
|
{
|
|
if (*pptoken) {
|
|
NT_USER_TOKEN *ptoken = *pptoken;
|
|
SAFE_FREE( ptoken->user_sids );
|
|
ZERO_STRUCTP(ptoken);
|
|
}
|
|
SAFE_FREE(*pptoken);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Duplicate a SID token.
|
|
****************************************************************************/
|
|
|
|
NT_USER_TOKEN *dup_nt_token(NT_USER_TOKEN *ptoken)
|
|
{
|
|
NT_USER_TOKEN *token;
|
|
|
|
if (!ptoken)
|
|
return NULL;
|
|
|
|
if ((token = (NT_USER_TOKEN *)malloc( sizeof(NT_USER_TOKEN) ) ) == NULL)
|
|
return NULL;
|
|
|
|
ZERO_STRUCTP(token);
|
|
|
|
if ((token->user_sids = (DOM_SID *)memdup( ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
|
|
SAFE_FREE(token);
|
|
return NULL;
|
|
}
|
|
|
|
token->num_sids = ptoken->num_sids;
|
|
|
|
return token;
|
|
}
|
|
|
|
/**
|
|
* Squash an NT_STATUS in line with security requirements.
|
|
* In an attempt to avoid giving the whole game away when users
|
|
* are authenticating, NT replaces both NT_STATUS_NO_SUCH_USER and
|
|
* NT_STATUS_WRONG_PASSWORD with NT_STATUS_LOGON_FAILURE in certain situations
|
|
* (session setups in particular).
|
|
*
|
|
* @param nt_status NTSTATUS input for squashing.
|
|
* @return the 'squashed' nt_status
|
|
**/
|
|
|
|
NTSTATUS nt_status_squash(NTSTATUS nt_status)
|
|
{
|
|
if NT_STATUS_IS_OK(nt_status) {
|
|
return nt_status;
|
|
} else if NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER) {
|
|
/* Match WinXP and don't give the game away */
|
|
return NT_STATUS_LOGON_FAILURE;
|
|
|
|
} else if NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD) {
|
|
/* Match WinXP and don't give the game away */
|
|
return NT_STATUS_LOGON_FAILURE;
|
|
} else {
|
|
return nt_status;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Verify whether or not given domain is trusted.
|
|
*
|
|
* @param domain_name name of the domain to be verified
|
|
* @return true if domain is one of the trusted once or
|
|
* false if otherwise
|
|
**/
|
|
|
|
BOOL is_trusted_domain(const char* dom_name)
|
|
{
|
|
DOM_SID trustdom_sid;
|
|
char *pass = NULL;
|
|
time_t lct;
|
|
BOOL ret;
|
|
|
|
/* no trusted domains for a standalone server */
|
|
|
|
if ( lp_server_role() == ROLE_STANDALONE )
|
|
return False;
|
|
|
|
/* if we are a DC, then check for a direct trust relationships */
|
|
|
|
if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
|
|
become_root();
|
|
ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
|
|
unbecome_root();
|
|
SAFE_FREE(pass);
|
|
if (ret)
|
|
return True;
|
|
}
|
|
else {
|
|
/* if winbindd is not up and we are a domain member) then we need to update the
|
|
trustdom_cache ourselves */
|
|
|
|
if ( !winbind_ping() )
|
|
update_trustdom_cache();
|
|
}
|
|
|
|
/* now the trustdom cache should be available a DC could still
|
|
* have a transitive trust so fall back to the cache of trusted
|
|
* domains (like a domain member would use */
|
|
|
|
if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {
|
|
return True;
|
|
}
|
|
|
|
return False;
|
|
}
|
|
|