diff options
Diffstat (limited to 'source3/smbd/auth_smbpasswd.c')
| -rw-r--r-- | source3/smbd/auth_smbpasswd.c | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/source3/smbd/auth_smbpasswd.c b/source3/smbd/auth_smbpasswd.c deleted file mode 100644 index 24a4d4e4e4..0000000000 --- a/source3/smbd/auth_smbpasswd.c +++ /dev/null @@ -1,412 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 1.9. - Password and authentication handling - Copyright (C) Andrew Tridgell 1992-2000 - Copyright (C) Luke Kenneth Casson Leighton 1996-2000 - Copyright (C) Andrew Bartlett 2001 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (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. -*/ - -#include "includes.h" - -/**************************************************************************** -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]) -{ - /* Finish the encryption of part_passwd. */ - uchar p24[24]; - - if (part_passwd == NULL) { - DEBUG(10,("No password set - DISALLOWING access\n")); - /* No password set - always false ! */ - return False; - } - - if (sec_blob.length != 8) { - DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challange size (%d)\n", sec_blob.length)); - return False; - } - - if (nt_response.length != 24) { - DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect password length (%d)\n", nt_response.length)); - return False; - } - - SMBOWFencrypt(part_passwd, sec_blob.data, p24); - if (user_sess_key != NULL) - { - SMBsesskeygen_ntv1(part_passwd, NULL, user_sess_key); - } - - - -#if DEBUG_PASSWORD - DEBUG(100,("Part password (P16) was |")); - dump_data(100, part_passwd, 16); - DEBUG(100,("Password from client was |")); - dump_data(100, nt_response.data, nt_response.length); - DEBUG(100,("Given challenge was |")); - dump_data(100, sec_blob.data, sec_blob.length); - DEBUG(100,("Value from encryption was |")); - dump_data(100, p24, 24); -#endif - return (memcmp(p24, nt_response.data, 24) == 0); -} - -/**************************************************************************** -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]) -{ - /* Finish the encryption of part_passwd. */ - uchar kr[16]; - uchar value_from_encryption[16]; - uchar client_response[16]; - DATA_BLOB client_key_data; - - if (part_passwd == NULL) - { - DEBUG(10,("No password set - DISALLOWING access\n")); - /* No password set - always False */ - return False; - } - - if (ntv2_response.length < 16) { - /* We MUST have more than 16 bytes, or the stuff below will go - crazy... */ - 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, sizeof(client_response)); - - ntv2_owf_gen(part_passwd, user, domain, kr); - SMBOWFencrypt_ntv2(kr, sec_blob, client_key_data, (char *)value_from_encryption); - if (user_sess_key != NULL) - { - SMBsesskeygen_ntv2(kr, value_from_encryption, user_sess_key); - } - -#if DEBUG_PASSWORD - DEBUG(100,("Part password (P16) was |")); - dump_data(100, part_passwd, 16); - 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, 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 |")); - dump_data(100, value_from_encryption, 16); -#endif - data_blob_clear_free(&client_key_data); - return (memcmp(value_from_encryption, client_response, 16) == 0); -} - - -/**************************************************************************** - 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(SAM_ACCOUNT *sampass, - const auth_usersupplied_info *user_info, - const auth_authsupplied_info *auth_info, - uint8 user_sess_key[16]) -{ - uint16 acct_ctrl; - const uint8 *nt_pw, *lm_pw; - uint32 ntlmssp_flags; - - 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", pdb_get_username(sampass))); - return(NT_STATUS_OK); - } - else - { - DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n", pdb_get_username(sampass))); - return(NT_STATUS_LOGON_FAILURE); - } - } - - nt_pw = pdb_get_nt_passwd(sampass); - lm_pw = pdb_get_lanman_passwd(sampass); - - ntlmssp_flags = user_info->ntlmssp_flags; - - if (nt_pw == NULL) { - DEBUG(3,("smb_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)); - } - - if (ntlmssp_flags & NTLMSSP_NEGOTIATE_NTLM2) { - /* 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, auth_info->challange, - user_info->smb_name.str, - user_info->client_domain.str, - user_sess_key)) - { - return NT_STATUS_OK; - } else { - DEBUG(3,("smb_password_ok: NTLMv2 password check failed\n")); - 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, auth_info->challange, - 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))); - /* 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); - } - - if (ntlmssp_flags & NTLMSSP_NEGOTIATE_OEM) { - - if (user_info->lm_resp.length != 24) { - DEBUG(2,("smb_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))); - return NT_STATUS_LOGON_FAILURE; - } - - DEBUG(4,("smb_password_ok: Checking LM password\n")); - if (smb_pwd_check_ntlmv1(user_info->lm_resp, - lm_pw, auth_info->challange, - 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))); - 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))); - 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). -****************************************************************************/ -static NTSTATUS sam_account_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_info *user_info) -{ - uint16 acct_ctrl = pdb_get_acct_ctrl(sampass); - char *workstation_list; - time_t kickoff_time; - - DEBUG(4,("smb_password_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,("Account for user '%s' was disabled.\n", pdb_get_username(sampass))); - return NT_STATUS_ACCOUNT_DISABLED; - } - - /* Test account expire time */ - - kickoff_time = pdb_get_kickoff_time(sampass); - if (kickoff_time != 0 && time(NULL) > kickoff_time) { - DEBUG(1,("Account for user '%s' has expried.\n", pdb_get_username(sampass))); - DEBUG(3,("Account expired at '%ld' unix time.\n", (long)kickoff_time)); - 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)); - - if (!workstation_list) return NT_STATUS_NO_MEMORY; - - if (*workstation_list) { - BOOL invalid_ws = True; - char *s = workstation_list; - - fstring tok; - - while (next_token(&s, tok, ",", sizeof(tok))) { - DEBUG(10,("checking for workstation match %s and %s (len=%d)\n", - tok, user_info->wksta_name.str, user_info->wksta_name.len)); - if(strequal(tok, user_info->wksta_name.str)) { - invalid_ws = False; - break; - } - } - - SAFE_FREE(workstation_list); - if (invalid_ws) - return NT_STATUS_INVALID_WORKSTATION; - } else { - SAFE_FREE(workstation_list); - } - - if (acct_ctrl & ACB_DOMTRUST) { - DEBUG(2,("session_trust_account: 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))); - 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))); - 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. -****************************************************************************/ - -NTSTATUS check_sam_security(void *my_private_dat, - const auth_usersupplied_info *user_info, - const auth_authsupplied_info *auth_info, - auth_serversupplied_info **server_info) -{ - SAM_ACCOUNT *sampass=NULL; - BOOL ret; - NTSTATUS nt_status; - uint8 user_sess_key[16]; - const uint8* lm_hash; - - if (!user_info || !auth_info) { - return NT_STATUS_LOGON_FAILURE; - } - - if (!pdb_init_sam(&sampass)) { - return NT_STATUS_NO_MEMORY; - } - - /* get the account information */ - - become_root(); - ret = pdb_getsampwnam(sampass, user_info->internal_username.str); - unbecome_root(); - - if (ret == False) - { - DEBUG(1,("Couldn't find user '%s' in passdb file.\n", user_info->internal_username.str)); - pdb_free_sam(&sampass); - return NT_STATUS_NO_SUCH_USER; - } - - nt_status = sam_password_ok(sampass, user_info, auth_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); - - if (!NT_STATUS_IS_OK(nt_status)) { - pdb_free_sam(&sampass); - return nt_status; - } - - if (!make_server_info_sam(server_info, sampass)) { - DEBUG(0,("failed to malloc memory for server_info\n")); - return NT_STATUS_NO_MEMORY; - } - - lm_hash = pdb_get_lanman_passwd((*server_info)->sam_account); - if (lm_hash) { - memcpy((*server_info)->first_8_lm_hash, lm_hash, 8); - } - - memcpy((*server_info)->session_key, user_sess_key, sizeof(user_sess_key)); - - return nt_status; -} - -BOOL auth_init_sam(auth_methods **auth_method) -{ - if (!make_auth_methods(auth_method)) { - return False; - } - - (*auth_method)->auth = check_sam_security; - return True; -} - - - |