Copyright (C) Luke Kenneth Casson Leighton 1996-2000
Copyright (C) Andrew Bartlett 2001-2003
Copyright (C) Gerald Carter 2003
-
+
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"
+#include "auth.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
-/****************************************************************************
- Do a specific test for an smb password being correct, given a smb_password and
- the lanman and NT responses.
-****************************************************************************/
-
-static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
- TALLOC_CTX *mem_ctx,
- struct samu *sampass,
- const auth_usersupplied_info *user_info,
- DATA_BLOB *user_sess_key,
- DATA_BLOB *lm_sess_key)
-{
- uint32 acct_ctrl;
- const uint8 *lm_pw, *nt_pw;
- const char *username = pdb_get_username(sampass);
-
- acct_ctrl = pdb_get_acct_ctrl(sampass);
- if (acct_ctrl & ACB_PWNOTREQ) {
- if (lp_null_passwords()) {
- DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n", username));
- return NT_STATUS_OK;
- } else {
- DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n", username));
- return NT_STATUS_LOGON_FAILURE;
- }
- }
-
- lm_pw = pdb_get_lanman_passwd(sampass);
- nt_pw = pdb_get_nt_passwd(sampass);
-
- return ntlm_password_check(mem_ctx, &auth_context->challenge,
- &user_info->lm_resp, &user_info->nt_resp,
- &user_info->lm_interactive_pwd, &user_info->nt_interactive_pwd,
- username,
- user_info->smb_name,
- user_info->client_domain,
- lm_pw, nt_pw, user_sess_key, lm_sess_key);
-}
-
-/****************************************************************************
- Check if a user is allowed to logon at this time. Note this is the
- servers local time, as logon hours are just specified as a weekly
- bitmask.
-****************************************************************************/
-
-static BOOL logon_hours_ok(struct samu *sampass)
-{
- /* In logon hours first bit is Sunday from 12AM to 1AM */
- const uint8 *hours;
- struct tm *utctime;
- time_t lasttime;
- const char *asct;
- uint8 bitmask, bitpos;
-
- hours = pdb_get_hours(sampass);
- if (!hours) {
- DEBUG(5,("logon_hours_ok: No hours restrictions for user %s\n",pdb_get_username(sampass)));
- return True;
- }
-
- lasttime = time(NULL);
- utctime = gmtime(&lasttime);
- if (!utctime) {
- DEBUG(1, ("logon_hours_ok: failed to get gmtime. Failing logon for user %s\n",
- pdb_get_username(sampass) ));
- return False;
- }
-
- /* find the corresponding byte and bit */
- bitpos = (utctime->tm_wday * 24 + utctime->tm_hour) % 168;
- bitmask = 1 << (bitpos % 8);
-
- if (! (hours[bitpos/8] & bitmask)) {
- struct tm *t = localtime(&lasttime);
- if (!t) {
- asct = "INVALID TIME";
- } else {
- asct = asctime(t);
- if (!asct) {
- asct = "INVALID TIME";
- }
- }
-
- DEBUG(1, ("logon_hours_ok: Account for user %s not allowed to "
- "logon at this time (%s).\n",
- pdb_get_username(sampass), asct ));
- return False;
- }
-
- asct = asctime(utctime);
- DEBUG(5,("logon_hours_ok: user %s allowed to logon at this time (%s)\n",
- pdb_get_username(sampass), asct ? asct : "UNKNOWN TIME" ));
-
- return True;
-}
-
-/****************************************************************************
- Do a specific test for a struct samu being vaild for this connection
- (ie not disabled, expired and the like).
-****************************************************************************/
-
-static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
- struct samu *sampass,
- const auth_usersupplied_info *user_info)
-{
- uint32 acct_ctrl = pdb_get_acct_ctrl(sampass);
- char *workstation_list;
- time_t kickoff_time;
-
- DEBUG(4,("sam_account_ok: Checking SMB password for user %s\n",pdb_get_username(sampass)));
-
- /* Quit if the account was disabled. */
- if (acct_ctrl & ACB_DISABLED) {
- DEBUG(1,("sam_account_ok: Account for user '%s' was disabled.\n", pdb_get_username(sampass)));
- return NT_STATUS_ACCOUNT_DISABLED;
- }
-
- /* Quit if the account was locked out. */
- if (acct_ctrl & ACB_AUTOLOCK) {
- DEBUG(1,("sam_account_ok: Account for user %s was locked out.\n", pdb_get_username(sampass)));
- return NT_STATUS_ACCOUNT_LOCKED_OUT;
- }
-
- /* Quit if the account is not allowed to logon at this time. */
- if (! logon_hours_ok(sampass)) {
- return NT_STATUS_INVALID_LOGON_HOURS;
- }
-
- /* Test account expire time */
-
- kickoff_time = pdb_get_kickoff_time(sampass);
- if (kickoff_time != 0 && time(NULL) > kickoff_time) {
- DEBUG(1,("sam_account_ok: Account for user '%s' has expired.\n", pdb_get_username(sampass)));
- DEBUG(3,("sam_account_ok: Account expired at '%ld' unix time.\n", (long)kickoff_time));
- return NT_STATUS_ACCOUNT_EXPIRED;
- }
-
- if (!(pdb_get_acct_ctrl(sampass) & ACB_PWNOEXP) && !(pdb_get_acct_ctrl(sampass) & ACB_PWNOTREQ)) {
- time_t must_change_time = pdb_get_pass_must_change_time(sampass);
- time_t last_set_time = pdb_get_pass_last_set_time(sampass);
-
- /* check for immediate expiry "must change at next logon" */
- if (last_set_time == 0) {
- DEBUG(1,("sam_account_ok: Account for user '%s' password must change!.\n", pdb_get_username(sampass)));
- return NT_STATUS_PASSWORD_MUST_CHANGE;
- }
-
- /* check for expired password */
- if (must_change_time < time(NULL) && must_change_time != 0) {
- DEBUG(1,("sam_account_ok: Account for user '%s' password expired!.\n", pdb_get_username(sampass)));
- DEBUG(1,("sam_account_ok: Password expired at '%s' (%ld) unix time.\n", http_timestring(must_change_time), (long)must_change_time));
- return NT_STATUS_PASSWORD_EXPIRED;
- }
- }
-
- /* Test workstation. Workstation list is comma separated. */
-
- workstation_list = talloc_strdup(mem_ctx, pdb_get_workstations(sampass));
- if (!workstation_list)
- return NT_STATUS_NO_MEMORY;
-
- if (*workstation_list) {
- BOOL invalid_ws = True;
- fstring tok;
- const char *s = workstation_list;
-
- const char *machine_name = talloc_asprintf(mem_ctx, "%s$", user_info->wksta_name);
- if (machine_name == NULL)
- return NT_STATUS_NO_MEMORY;
-
-
- while (next_token(&s, tok, ",", sizeof(tok))) {
- DEBUG(10,("sam_account_ok: checking for workstation match %s and %s\n",
- tok, user_info->wksta_name));
- if(strequal(tok, user_info->wksta_name)) {
- invalid_ws = False;
- break;
- }
- if (tok[0] == '+') {
- DEBUG(10,("sam_account_ok: checking for workstation %s in group: %s\n",
- machine_name, tok + 1));
- if (user_in_group(machine_name, tok + 1)) {
- invalid_ws = False;
- break;
- }
- }
- }
-
- if (invalid_ws)
- return NT_STATUS_INVALID_WORKSTATION;
- }
-
- if (acct_ctrl & ACB_DOMTRUST) {
- DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", pdb_get_username(sampass)));
- return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
- }
-
- if (acct_ctrl & ACB_SVRTRUST) {
- if (!(user_info->logon_parameters & MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT)) {
- DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", pdb_get_username(sampass)));
- return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
- }
- }
-
- if (acct_ctrl & ACB_WSTRUST) {
- if (!(user_info->logon_parameters & MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT)) {
- DEBUG(2,("sam_account_ok: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
- return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
- }
- }
- return NT_STATUS_OK;
-}
-
-/****************************************************************************
-check if a username/password is OK assuming the password is a 24 byte
-SMB hash supplied in the user_info structure
-return an NT_STATUS constant.
-****************************************************************************/
-
-static NTSTATUS check_sam_security(const struct auth_context *auth_context,
- void *my_private_data,
- TALLOC_CTX *mem_ctx,
- const auth_usersupplied_info *user_info,
- auth_serversupplied_info **server_info)
+static NTSTATUS auth_sam_ignoredomain_auth(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)
{
- struct samu *sampass=NULL;
- BOOL ret;
- NTSTATUS nt_status;
- NTSTATUS update_login_attempts_status;
- DATA_BLOB user_sess_key = data_blob_null;
- DATA_BLOB lm_sess_key = data_blob_null;
- BOOL updated_autolock = False, updated_badpw = False;
-
if (!user_info || !auth_context) {
return NT_STATUS_UNSUCCESSFUL;
}
-
- /* the returned struct gets kept on the server_info, by means
- of a steal further down */
-
- if ( !(sampass = samu_new( mem_ctx )) ) {
- return NT_STATUS_NO_MEMORY;
- }
-
- /* get the account information */
-
- become_root();
- ret = pdb_getsampwnam(sampass, user_info->internal_username);
- unbecome_root();
-
- if (ret == False) {
- DEBUG(3,("check_sam_security: Couldn't find user '%s' in "
- "passdb.\n", user_info->internal_username));
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_SUCH_USER;
- }
-
- /* see if autolock flag needs to be updated */
- if (pdb_get_acct_ctrl(sampass) & ACB_NORMAL)
- pdb_update_autolock_flag(sampass, &updated_autolock);
- /* Quit if the account was locked out. */
- if (pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK) {
- DEBUG(3,("check_sam_security: Account for user %s was locked out.\n", pdb_get_username(sampass)));
- return NT_STATUS_ACCOUNT_LOCKED_OUT;
- }
-
- nt_status = sam_password_ok(auth_context, mem_ctx, sampass,
- user_info, &user_sess_key, &lm_sess_key);
-
- /* Notify passdb backend of login success/failure. If not NT_STATUS_OK the backend doesn't like the login */
- update_login_attempts_status = pdb_update_login_attempts(sampass, NT_STATUS_IS_OK(nt_status));
- if (!NT_STATUS_IS_OK(update_login_attempts_status))
- nt_status = update_login_attempts_status;
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- if (NT_STATUS_EQUAL(nt_status,NT_STATUS_WRONG_PASSWORD) &&
- pdb_get_acct_ctrl(sampass) &ACB_NORMAL) {
- pdb_increment_bad_password_count(sampass);
- updated_badpw = True;
- } else {
- pdb_update_bad_password_count(sampass,
- &updated_badpw);
- }
- if (updated_autolock || updated_badpw){
- become_root();
- if(!NT_STATUS_IS_OK(pdb_update_sam_account(sampass)))
- DEBUG(1, ("Failed to modify entry.\n"));
- unbecome_root();
- }
- data_blob_free(&user_sess_key);
- data_blob_free(&lm_sess_key);
- TALLOC_FREE(sampass);
- return nt_status;
- }
-
- if ((pdb_get_acct_ctrl(sampass) & ACB_NORMAL) &&
- (pdb_get_bad_password_count(sampass) > 0)){
- pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
- pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
- updated_badpw = True;
- }
-
- if (updated_autolock || updated_badpw){
- become_root();
- if(!NT_STATUS_IS_OK(pdb_update_sam_account(sampass)))
- DEBUG(1, ("Failed to modify entry.\n"));
- unbecome_root();
- }
-
- nt_status = sam_account_ok(mem_ctx, sampass, user_info);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- TALLOC_FREE(sampass);
- data_blob_free(&user_sess_key);
- data_blob_free(&lm_sess_key);
- return nt_status;
- }
-
- become_root();
- nt_status = make_server_info_sam(server_info, sampass);
- unbecome_root();
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(0,("check_sam_security: make_server_info_sam() failed with '%s'\n", nt_errstr(nt_status)));
- TALLOC_FREE(sampass);
- data_blob_free(&user_sess_key);
- data_blob_free(&lm_sess_key);
- return nt_status;
- }
-
- (*server_info)->user_session_key =
- data_blob_talloc(*server_info, user_sess_key.data,
- user_sess_key.length);
- data_blob_free(&user_sess_key);
-
- (*server_info)->lm_session_key =
- data_blob_talloc(*server_info, lm_sess_key.data,
- lm_sess_key.length);
- data_blob_free(&lm_sess_key);
-
- (*server_info)->was_mapped |= user_info->was_mapped;
-
- return nt_status;
+ return check_sam_security(&auth_context->challenge, mem_ctx,
+ user_info, server_info);
}
/* module initialisation */
static NTSTATUS auth_init_sam_ignoredomain(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
{
- if (!make_auth_methods(auth_context, auth_method)) {
+ struct auth_methods *result;
+
+ result = talloc_zero(auth_context, struct auth_methods);
+ if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
+ result->auth = auth_sam_ignoredomain_auth;
+ result->name = "sam_ignoredomain";
- (*auth_method)->auth = check_sam_security;
- (*auth_method)->name = "sam_ignoredomain";
+ *auth_method = result;
return NT_STATUS_OK;
}
Check SAM security (above) but with a few extra checks.
****************************************************************************/
-static NTSTATUS check_samstrict_security(const struct auth_context *auth_context,
- void *my_private_data,
- TALLOC_CTX *mem_ctx,
- const auth_usersupplied_info *user_info,
- auth_serversupplied_info **server_info)
+static NTSTATUS auth_samstrict_auth(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)
{
- BOOL is_local_name, is_my_domain;
+ bool is_local_name, is_my_domain;
if (!user_info || !auth_context) {
return NT_STATUS_LOGON_FAILURE;
}
- is_local_name = is_myname(user_info->domain);
- is_my_domain = strequal(user_info->domain, lp_workgroup());
+ DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
+ is_local_name = is_myname(user_info->mapped.domain_name);
+ is_my_domain = strequal(user_info->mapped.domain_name, lp_workgroup());
/* check whether or not we service this domain/workgroup name */
-
+
switch ( lp_server_role() ) {
case ROLE_STANDALONE:
case ROLE_DOMAIN_MEMBER:
if ( !is_local_name ) {
DEBUG(6,("check_samstrict_security: %s is not one of my local names (%s)\n",
- user_info->domain, (lp_server_role() == ROLE_DOMAIN_MEMBER
+ user_info->mapped.domain_name, (lp_server_role() == ROLE_DOMAIN_MEMBER
? "ROLE_DOMAIN_MEMBER" : "ROLE_STANDALONE") ));
return NT_STATUS_NOT_IMPLEMENTED;
}
case ROLE_DOMAIN_BDC:
if ( !is_local_name && !is_my_domain ) {
DEBUG(6,("check_samstrict_security: %s is not one of my local names or domain name (DC)\n",
- user_info->domain));
+ user_info->mapped.domain_name));
return NT_STATUS_NOT_IMPLEMENTED;
}
default: /* name is ok */
break;
}
-
- return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
+
+ return check_sam_security(&auth_context->challenge, mem_ctx,
+ user_info, server_info);
}
/* module initialisation */
static NTSTATUS auth_init_sam(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
{
- if (!make_auth_methods(auth_context, auth_method)) {
+ struct auth_methods *result;
+
+ if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
+ && !lp_parm_bool(-1, "server role check", "inhibit", false)) {
+ DEBUG(0, ("server role = 'active directory domain controller' not compatible with running the auth_sam module. \n"));
+ DEBUGADD(0, ("You should not set 'auth methods' when running the AD DC.\n"));
+ exit(1);
+ }
+
+ result = talloc_zero(auth_context, struct auth_methods);
+ if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
+ result->auth = auth_samstrict_auth;
+ result->name = "sam";
- (*auth_method)->auth = check_samstrict_security;
- (*auth_method)->name = "sam";
+ *auth_method = result;
return NT_STATUS_OK;
}
git.samba.org / obnox / samba / samba-obnox.git / blobdiff