core of smb password checking routine.
****************************************************************************/
static BOOL smb_pwd_check_ntlmv1(DATA_BLOB nt_response,
- const uchar *part_passwd,
- DATA_BLOB sec_blob,
- uint8 user_sess_key[16])
+ const uchar *part_passwd,
+ DATA_BLOB sec_blob,
+ uint8 user_sess_key[16])
{
/* Finish the encryption of part_passwd. */
uchar p24[24];
}
if (sec_blob.length != 8) {
- DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challange size (%d)\n", sec_blob.length));
+ DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challenge size (%d)\n", sec_blob.length));
return False;
}
core of smb password checking routine.
****************************************************************************/
static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB ntv2_response,
- const uchar *part_passwd,
- const DATA_BLOB sec_blob,
- const char *user, const char *domain,
- uint8 user_sess_key[16])
+ const uchar *part_passwd,
+ const DATA_BLOB sec_blob,
+ const char *user, const char *domain,
+ uint8 user_sess_key[16])
{
/* Finish the encryption of part_passwd. */
uchar kr[16];
if (ntv2_response.length < 16) {
/* We MUST have more than 16 bytes, or the stuff below will go
crazy... */
- DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect password length (%d)\n",
+ DEBUG(0, ("smb_pwd_check_ntlmv2: incorrect password length (%d)\n",
ntv2_response.length));
return False;
}
client_key_data = data_blob(ntv2_response.data+16, ntv2_response.length-16);
- memcpy(client_response, ntv2_response.data, ntv2_response.length);
-
- if (!client_key_data.data) {
- return False;
- }
+ memcpy(client_response, ntv2_response.data, sizeof(client_response));
ntv2_owf_gen(part_passwd, user, domain, kr);
SMBOWFencrypt_ntv2(kr, sec_blob, client_key_data, (char *)value_from_encryption);
DEBUG(100,("Password from client was |"));
dump_data(100, ntv2_response.data, ntv2_response.length);
DEBUG(100,("Variable data from client was |"));
- dump_data(100, ntv2_response.data, ntv2_response.length);
+ dump_data(100, client_key_data.data, client_key_data.length);
DEBUG(100,("Given challenge was |"));
dump_data(100, sec_blob.data, sec_blob.length);
DEBUG(100,("Value from encryption was |"));
Do a specific test for an smb password being correct, given a smb_password and
the lanman and NT responses.
****************************************************************************/
-NTSTATUS sam_password_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_info *user_info, uint8 user_sess_key[16])
+static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
+ TALLOC_CTX *mem_ctx,
+ SAM_ACCOUNT *sampass,
+ const auth_usersupplied_info *user_info,
+ uint8 user_sess_key[16])
{
+ uint16 acct_ctrl;
const uint8 *nt_pw, *lm_pw;
- uint16 acct_ctrl = pdb_get_acct_ctrl(sampass);
- uint32 ntlmssp_flags;
-
- if (!user_info || !sampass)
- return NT_STATUS_LOGON_FAILURE;
+ uint32 auth_flags;
+ acct_ctrl = pdb_get_acct_ctrl(sampass);
if (acct_ctrl & ACB_PWNOTREQ)
{
if (lp_null_passwords())
nt_pw = pdb_get_nt_passwd(sampass);
lm_pw = pdb_get_lanman_passwd(sampass);
- ntlmssp_flags = user_info->ntlmssp_flags;
+ auth_flags = user_info->auth_flags;
if (nt_pw == NULL) {
- DEBUG(3,("smb_password_ok: NO NT password stored for user %s.\n",
+ DEBUG(3,("sam_password_ok: NO NT password stored for user %s.\n",
pdb_get_username(sampass)));
/* No return, we want to check the LM hash below in this case */
- ntlmssp_flags &= (~(NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_NTLM2));
+ auth_flags &= (~(AUTH_FLAG_NTLMv2_RESP | AUTH_FLAG_NTLM_RESP));
}
-
- if (ntlmssp_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+
+ if (auth_flags & AUTH_FLAG_NTLMv2_RESP) {
+ /* We have the NT MD4 hash challenge available - see if we can
+ use it (ie. does it exist in the smbpasswd file).
+ */
+ DEBUG(4,("sam_password_ok: Checking NTLMv2 password\n"));
+ if (smb_pwd_check_ntlmv2( user_info->nt_resp,
+ nt_pw, auth_context->challenge,
+ user_info->smb_name.str,
+ user_info->client_domain.str,
+ user_sess_key))
+ {
+ return NT_STATUS_OK;
+ } else {
+ DEBUG(3,("sam_password_ok: NTLMv2 password check failed\n"));
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+ } else if (auth_flags & AUTH_FLAG_NTLM_RESP) {
+ if (lp_ntlm_auth()) {
/* We have the NT MD4 hash challenge available - see if we can
use it (ie. does it exist in the smbpasswd file).
*/
- DEBUG(4,("smb_password_ok: Checking NTLMv2 password\n"));
- if (smb_pwd_check_ntlmv2( user_info->nt_resp,
- nt_pw,
- user_info->sec_blob, user_info->smb_name.str,
- user_info->client_domain.str,
- user_sess_key))
+ DEBUG(4,("sam_password_ok: Checking NT MD4 password\n"));
+ if (smb_pwd_check_ntlmv1(user_info->nt_resp,
+ nt_pw, auth_context->challenge,
+ user_sess_key))
{
return NT_STATUS_OK;
} else {
- DEBUG(3,("smb_password_ok: NTLMv2 password check failed\n"));
+ DEBUG(3,("sam_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
return NT_STATUS_WRONG_PASSWORD;
}
- } else if (ntlmssp_flags & NTLMSSP_NEGOTIATE_NTLM) {
- if (lp_ntlm_auth()) {
- /* We have the NT MD4 hash challenge available - see if we can
- use it (ie. does it exist in the smbpasswd file).
- */
- DEBUG(4,("smb_password_ok: Checking NT MD4 password\n"));
- if (smb_pwd_check_ntlmv1(user_info->nt_resp,
- nt_pw, user_info->sec_blob,
- user_sess_key))
- {
- return NT_STATUS_OK;
- } else {
- DEBUG(3,("smb_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
- }
- } else {
- DEBUG(2,("smb_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
+ } else {
+ DEBUG(2,("sam_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
/* No return, we want to check the LM hash below in this case */
- }
- }
-
+ }
+ }
+
if (lm_pw == NULL) {
- DEBUG(3,("smb_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
- ntlmssp_flags &= (~NTLMSSP_NEGOTIATE_OEM);
+ DEBUG(3,("sam_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
+ auth_flags &= (~AUTH_FLAG_LM_RESP);
}
- if (ntlmssp_flags & NTLMSSP_NEGOTIATE_OEM) {
+ if (auth_flags & AUTH_FLAG_LM_RESP) {
if (user_info->lm_resp.length != 24) {
- DEBUG(2,("smb_password_ok: invalid LanMan password length (%d) for user %s\n",
+ DEBUG(2,("sam_password_ok: invalid LanMan password length (%d) for user %s\n",
user_info->nt_resp.length, pdb_get_username(sampass)));
}
if (!lp_lanman_auth()) {
- DEBUG(3,("smb_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
+ DEBUG(3,("sam_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
return NT_STATUS_LOGON_FAILURE;
}
- DEBUG(4,("smb_password_ok: Checking LM password\n"));
+ DEBUG(4,("sam_password_ok: Checking LM password\n"));
if (smb_pwd_check_ntlmv1(user_info->lm_resp,
- lm_pw, user_info->sec_blob,
+ lm_pw, auth_context->challenge,
user_sess_key))
{
return NT_STATUS_OK;
} else {
- DEBUG(4,("smb_password_ok: LM password check failed for user %s\n",pdb_get_username(sampass)));
+ DEBUG(4,("sam_password_ok: LM password check failed for user %s\n",pdb_get_username(sampass)));
return NT_STATUS_WRONG_PASSWORD;
}
}
/* Should not be reached, but if they send nothing... */
- DEBUG(3,("smb_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
+ DEBUG(3,("sam_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
return NT_STATUS_WRONG_PASSWORD;
}
Do a specific test for a SAM_ACCOUNT being vaild for this connection
(ie not disabled, expired and the like).
****************************************************************************/
-NTSTATUS sam_account_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_info *user_info)
+static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
+ SAM_ACCOUNT *sampass,
+ const auth_usersupplied_info *user_info)
{
uint16 acct_ctrl = pdb_get_acct_ctrl(sampass);
char *workstation_list;
time_t kickoff_time;
- if (!user_info || !sampass)
- return NT_STATUS_LOGON_FAILURE;
-
- DEBUG(4,("smb_password_ok: Checking SMB password for user %s\n",pdb_get_username(sampass)));
+ 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) {
return NT_STATUS_ACCOUNT_EXPIRED;
}
+ if (!(pdb_get_acct_ctrl(sampass) & ACB_PWNOEXP)) {
+ 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 (must_change_time == 0 && last_set_time != 0) {
+ DEBUG(1,("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,("Account for user '%s' password expired!.\n", pdb_get_username(sampass)));
+ DEBUG(1,("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 = strdup(pdb_get_workstations(sampass));
+ workstation_list = talloc_strdup(mem_ctx, pdb_get_workstations(sampass));
if (!workstation_list) return NT_STATUS_NO_MEMORY;
}
}
- SAFE_FREE(workstation_list);
if (invalid_ws)
return NT_STATUS_INVALID_WORKSTATION;
- } else {
- SAFE_FREE(workstation_list);
- }
-
- if (!(pdb_get_acct_ctrl(sampass) & ACB_PWNOEXP)) {
- 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 (must_change_time == 0 && last_set_time != 0) {
- DEBUG(1,("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,("Account for user '%s' password expired!.\n", pdb_get_username(sampass)));
- DEBUG(1,("Password expired at '%s' (%ld) unix time.\n", http_timestring(must_change_time), (long)must_change_time));
- return NT_STATUS_PASSWORD_EXPIRED;
- }
}
if (acct_ctrl & ACB_DOMTRUST) {
- DEBUG(2,("session_trust_account: Domain trust account %s denied by server\n", pdb_get_username(sampass)));
+ 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) {
- DEBUG(2,("session_trust_account: Server trust account %s denied by server\n", pdb_get_username(sampass)));
+ 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) {
- DEBUG(4,("session_trust_account: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
+ DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
}
return an NT_STATUS constant.
****************************************************************************/
-NTSTATUS check_smbpasswd_security(const auth_usersupplied_info *user_info, auth_serversupplied_info **server_info)
+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)
{
SAM_ACCOUNT *sampass=NULL;
BOOL ret;
uint8 user_sess_key[16];
const uint8* lm_hash;
- pdb_init_sam(&sampass);
+ if (!user_info || !auth_context) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (!pdb_init_sam(&sampass)) {
+ return NT_STATUS_NO_MEMORY;
+ }
/* get the account information */
return NT_STATUS_NO_SUCH_USER;
}
- nt_status = sam_password_ok(sampass, user_info, user_sess_key);
+ nt_status = sam_password_ok(auth_context, mem_ctx, sampass, user_info, user_sess_key);
if (!NT_STATUS_IS_OK(nt_status)) {
pdb_free_sam(&sampass);
return nt_status;
}
- nt_status = sam_account_ok(sampass, user_info);
+ nt_status = sam_account_ok(mem_ctx, sampass, user_info);
if (!NT_STATUS_IS_OK(nt_status)) {
pdb_free_sam(&sampass);
return nt_status;
}
+/* module initialisation */
+BOOL auth_init_sam(struct auth_context *auth_context, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method)) {
+ return False;
+ }
+ (*auth_method)->auth = check_sam_security;
+ return True;
+}
+
+
+/****************************************************************************
+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)
+{
+
+ if (!user_info || !auth_context) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
+ /* If we are a domain member, we must not
+ attempt to check the password locally,
+ unless it is one of our aliases. */
+
+ if (!is_netbios_alias_or_name(user_info->domain.str)) {
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
+}
+
+/* module initialisation */
+BOOL auth_init_samstrict(struct auth_context *auth_context, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method)) {
+ return False;
+ }
+
+ (*auth_method)->auth = check_samstrict_security;
+ return True;
+}