/*
Unix SMB/CIFS implementation.
Password and authentication handling
- Copyright (C) Andrew Tridgell 1992-2000
- Copyright (C) Luke Kenneth Casson Leighton 1996-2000
- Copyright (C) Andrew Bartlett 2001
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2004
+ Copyright (C) Gerald Carter 2003
+ Copyright (C) Stefan Metzmacher 2005
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
*/
#include "includes.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_AUTH
-
-/****************************************************************************
-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 challenge 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. (NTLMv2, LMv2)
-
-Note: The same code works with both NTLMv2 and LMv2.
-****************************************************************************/
-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);
- /*
- todo: should we be checking this for anything? We can't for LMv2,
- but for NTLMv2 it is meant to contain the current time etc.
- */
-
- memcpy(client_response, ntv2_response.data, sizeof(client_response));
-
- if (!ntv2_owf_gen(part_passwd, user, domain, kr)) {
- return False;
- }
-
- SMBOWFencrypt_ntv2(kr, sec_blob, client_key_data, 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);
-}
-
+#include "librpc/gen_ndr/ndr_samr.h"
+#include "system/time.h"
+#include "auth/auth.h"
+#include "lib/ldb/include/ldb.h"
+#include "pstring.h"
/****************************************************************************
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,
- SAM_ACCOUNT *sampass,
- const auth_usersupplied_info *user_info,
- uint8 user_sess_key[16])
+static NTSTATUS authsam_password_ok(const struct auth_context *auth_context,
+ TALLOC_CTX *mem_ctx,
+ uint16_t acct_flags,
+ const struct samr_Password *lm_pwd,
+ const struct samr_Password *nt_pwd,
+ const struct auth_usersupplied_info *user_info,
+ DATA_BLOB *user_sess_key,
+ DATA_BLOB *lm_sess_key)
{
- uint16 acct_ctrl;
- const uint8 *nt_pw, *lm_pw;
- uint32 auth_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);
- }
- }
-
- auth_flags = user_info->auth_flags;
+ NTSTATUS status;
- if (IS_SAM_DEFAULT(sampass, PDB_NTPASSWD)) {
- 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 */
- auth_flags &= (~(AUTH_FLAG_NTLMv2_RESP | AUTH_FLAG_NTLM_RESP));
- }
-
- if (auth_flags & AUTH_FLAG_NTLMv2_RESP) {
- nt_pw = pdb_get_nt_passwd(sampass);
- /* 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 with domain [%s]\n", user_info->client_domain.str));
- 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))
- {
+ if (acct_flags & ACB_PWNOTREQ) {
+ if (lp_null_passwords()) {
+ DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n",
+ user_info->account_name));
return NT_STATUS_OK;
- }
-
- DEBUG(4,("sam_password_ok: Checking NTLMv2 password without a domain\n"));
- if (smb_pwd_check_ntlmv2( user_info->nt_resp,
- nt_pw, auth_context->challenge,
- user_info->smb_name.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()) {
- nt_pw = pdb_get_nt_passwd(sampass);
- /* 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 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,("sam_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
- }
} else {
- DEBUG(2,("sam_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
- /* no return, becouse we might pick up LMv2 in the LM feild */
- }
+ DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n",
+ user_info->account_name));
+ return NT_STATUS_LOGON_FAILURE;
+ }
}
-
- if (auth_flags & AUTH_FLAG_LM_RESP) {
- if (user_info->lm_resp.length != 24) {
- 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,("sam_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));
- } else if (IS_SAM_DEFAULT(sampass, PDB_LMPASSWD)) {
- DEBUG(3,("sam_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
- } else {
- lm_pw = pdb_get_lanman_passwd(sampass);
-
- DEBUG(4,("sam_password_ok: Checking LM password\n"));
- if (smb_pwd_check_ntlmv1(user_info->lm_resp,
- lm_pw, auth_context->challenge,
- user_sess_key))
- {
- return NT_STATUS_OK;
- }
- }
- if (IS_SAM_DEFAULT(sampass, PDB_NTPASSWD)) {
- DEBUG(4,("sam_password_ok: LM password check failed for user, no NT password %s\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
- }
-
- nt_pw = pdb_get_nt_passwd(sampass);
-
- /* This is for 'LMv2' authentication. almost NTLMv2 but limited to 24 bytes.
- - related to Win9X, legacy NAS pass-though authentication
- */
- DEBUG(4,("sam_password_ok: Checking LMv2 password with domain %s\n", user_info->client_domain.str));
- if (smb_pwd_check_ntlmv2( user_info->lm_resp,
- nt_pw, auth_context->challenge,
- user_info->smb_name.str,
- user_info->client_domain.str,
- user_sess_key))
- {
- return NT_STATUS_OK;
- }
+ status = ntlm_password_check(mem_ctx, &auth_context->challenge.data,
+ &user_info->lm_resp, &user_info->nt_resp,
+ &user_info->lm_interactive_password,
+ &user_info->nt_interactive_password,
+ user_info->account_name,
+ user_info->client.account_name,
+ user_info->client.domain_name,
+ lm_pwd->hash, nt_pwd->hash,
+ user_sess_key, lm_sess_key);
+ NT_STATUS_NOT_OK_RETURN(status);
- DEBUG(4,("sam_password_ok: Checking LMv2 password without a domain\n"));
- if (smb_pwd_check_ntlmv2( user_info->lm_resp,
- nt_pw, auth_context->challenge,
- user_info->smb_name.str,
- "",
- user_sess_key))
- {
- return NT_STATUS_OK;
- }
-
- /* Apparently NT accepts NT responses in the LM field
- - I think this is related to Win9X pass-though authentication
- */
- DEBUG(4,("sam_password_ok: Checking NT MD4 password in LM field\n"));
- if (lp_ntlm_auth())
- {
- if (smb_pwd_check_ntlmv1(user_info->lm_resp,
- nt_pw, auth_context->challenge,
- user_sess_key))
- {
- return NT_STATUS_OK;
- }
- DEBUG(3,("sam_password_ok: LM password, NT MD4 password in LM field and LMv2 failed for user %s\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
- } else {
- DEBUG(3,("sam_password_ok: LM password and LMv2 failed for user %s, and NT MD4 password in LM field not permitted\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
- }
-
+ if (user_sess_key && user_sess_key->data) {
+ talloc_steal(auth_context, user_sess_key->data);
}
-
- /* Should not be reached, but if they send nothing... */
- DEBUG(3,("sam_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
- return NT_STATUS_WRONG_PASSWORD;
+ if (lm_sess_key && lm_sess_key->data) {
+ talloc_steal(auth_context, lm_sess_key->data);
+ }
+
+ return NT_STATUS_OK;
}
+
/****************************************************************************
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(TALLOC_CTX *mem_ctx,
- SAM_ACCOUNT *sampass,
- const auth_usersupplied_info *user_info)
+static NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
+ uint16_t acct_flags,
+ NTTIME acct_expiry,
+ NTTIME must_change_time,
+ NTTIME last_set_time,
+ const char *workstation_list,
+ const struct auth_usersupplied_info *user_info)
{
- uint16 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)));
+ DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", user_info->account_name));
/* Quit if the account was disabled. */
- if (acct_ctrl & ACB_DISABLED) {
- DEBUG(1,("Account for user '%s' was disabled.\n", pdb_get_username(sampass)));
+ if (acct_flags & ACB_DISABLED) {
+ DEBUG(1,("authsam_account_ok: Account for user '%s' was disabled.\n", user_info->account_name));
return NT_STATUS_ACCOUNT_DISABLED;
}
+ /* Quit if the account was locked out. */
+ if (acct_flags & ACB_AUTOLOCK) {
+ DEBUG(1,("authsam_account_ok: Account for user %s was locked out.\n", user_info->account_name));
+ return NT_STATUS_ACCOUNT_LOCKED_OUT;
+ }
+
/* 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));
+ if ((acct_expiry) != -1 && time(NULL) > nt_time_to_unix(acct_expiry)) {
+ DEBUG(1,("authsam_account_ok: Account for user '%s' has expired.\n", user_info->account_name));
+ DEBUG(3,("authsam_account_ok: Account expired at '%s'.\n",
+ nt_time_string(mem_ctx, acct_expiry)));
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);
-
+ if (!(acct_flags & ACB_PWNOEXP)) {
/* 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)));
+ DEBUG(1,("sam_account_ok: Account for user '%s' password must change!.\n",
+ user_info->account_name));
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(mem_ctx, must_change_time), (long)must_change_time));
+ if ((must_change_time) != 0 && nt_time_to_unix(must_change_time) < time(NULL)) {
+ DEBUG(1,("sam_account_ok: Account for user '%s' password expired!.\n",
+ user_info->account_name));
+ DEBUG(1,("sam_account_ok: Password expired at '%s' unix time.\n",
+ nt_time_string(mem_ctx, 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) {
+ if (workstation_list && *workstation_list) {
BOOL invalid_ws = True;
const 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)) {
+ DEBUG(10,("sam_account_ok: checking for workstation match '%s' and '%s'\n",
+ tok, user_info->workstation_name));
+
+ if (strequal(tok, user_info->workstation_name)) {
invalid_ws = False;
+
break;
}
}
-
- if (invalid_ws)
+
+ 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)));
+ if (acct_flags & ACB_DOMTRUST) {
+ DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", user_info->account_name));
return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
}
-
- if (acct_ctrl & ACB_SVRTRUST) {
- DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", pdb_get_username(sampass)));
+
+ if (acct_flags & ACB_SVRTRUST) {
+ DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", user_info->account_name));
return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
}
-
- if (acct_ctrl & ACB_WSTRUST) {
- DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
+
+ if (acct_flags & ACB_WSTRUST) {
+ DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", user_info->account_name));
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.
+ Look for the specified user in the sam, return ldb result structures
****************************************************************************/
-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 authsam_search_account(TALLOC_CTX *mem_ctx, void *sam_ctx,
+ const char *account_name,
+ const char *domain_name,
+ struct ldb_message ***ret_msgs,
+ struct ldb_message ***ret_msgs_domain)
{
- SAM_ACCOUNT *sampass=NULL;
- BOOL ret;
- NTSTATUS nt_status;
- uint8 user_sess_key[16];
- const uint8* lm_hash;
+ struct ldb_message **msgs;
+ struct ldb_message **msgs_domain;
+
+ int ret;
+ int ret_domain;
+
+ const char *domain_dn = NULL;
+
+ const char *attrs[] = {"unicodePwd", "lmPwdHash", "ntPwdHash",
+ "userAccountControl",
+ "pwdLastSet",
+ "accountExpires",
+ "objectSid",
+ "userWorkstations",
+
+ /* required for server_info, not access control: */
+ "sAMAccountName",
+ "displayName",
+ "scriptPath",
+ "profilePath",
+ "homeDirectory",
+ "homeDrive",
+ "lastLogon",
+ "lastLogoff",
+ "accountExpires",
+ "badPwdCount",
+ "logonCount",
+ "primaryGroupID",
+ NULL,
+ };
+
+ const char *domain_attrs[] = {"flatname", "objectSid"};
+
+ if (domain_name) {
+ /* find the domain's DN */
+ ret_domain = gendb_search(sam_ctx, mem_ctx, NULL, &msgs_domain, domain_attrs,
+ "(|(&(dnsDomain=%s)(objectClass=domainDNS))(&(flatname=%s)(objectclass=domain)))",
+ domain_name, domain_name);
+ if (ret_domain == -1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
- if (!user_info || !auth_context) {
- return NT_STATUS_UNSUCCESSFUL;
- }
+ if (ret_domain == 0) {
+ DEBUG(3,("sam_search_user: Couldn't find domain [%s] in samdb.\n",
+ domain_name));
+ return NT_STATUS_NO_SUCH_USER;
+ }
- /* Can't use the talloc version here, becouse the returned struct gets
- kept on the server_info */
- if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
- return nt_status;
- }
+ if (ret_domain > 1) {
+ DEBUG(0,("Found %d records matching domain [%s]\n",
+ ret_domain, domain_name));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
- /* get the account information */
+ domain_dn = msgs_domain[0]->dn;
+ }
- become_root();
- ret = pdb_getsampwnam(sampass, user_info->internal_username.str);
- unbecome_root();
+ /* pull the user attributes */
+ ret = gendb_search(sam_ctx, mem_ctx, domain_dn, &msgs, attrs,
+ "(&(sAMAccountName=%s)(objectclass=user))",
+ account_name);
+ if (ret == -1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
- if (ret == False)
- {
- DEBUG(3,("Couldn't find user '%s' in passdb file.\n", user_info->internal_username.str));
- pdb_free_sam(&sampass);
+ if (ret == 0) {
+ DEBUG(3,("sam_search_user: Couldn't find user [%s] in samdb.\n",
+ account_name));
return NT_STATUS_NO_SUCH_USER;
}
- nt_status = sam_account_ok(mem_ctx, sampass, user_info);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- pdb_free_sam(&sampass);
- return nt_status;
+ if (ret > 1) {
+ DEBUG(0,("Found %d records matching user [%s]\n", ret, account_name));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
- nt_status = sam_password_ok(auth_context, mem_ctx, sampass, user_info, user_sess_key);
+ if (!domain_name) {
+ const char *domain_sid;
- if (!NT_STATUS_IS_OK(nt_status)) {
- pdb_free_sam(&sampass);
- return nt_status;
- }
+ domain_sid = samdb_result_sid_prefix(mem_ctx, msgs[0], "objectSid");
+ if (!domain_sid) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
- if (!NT_STATUS_IS_OK(nt_status = make_server_info_sam(server_info, sampass))) {
- DEBUG(0,("check_sam_security: make_server_info_sam() failed with '%s'\n", nt_errstr(nt_status)));
- return nt_status;
+ /* find the domain's DN */
+ ret_domain = gendb_search(sam_ctx, mem_ctx, NULL, &msgs_domain, domain_attrs,
+ "(&(objectSid=%s)(objectclass=domain))",
+ domain_sid);
+ if (ret_domain == -1) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ if (ret_domain == 0) {
+ DEBUG(3,("check_sam_security: Couldn't find domain [%s] in passdb file.\n",
+ domain_sid));
+ return NT_STATUS_NO_SUCH_USER;
+ }
+
+ if (ret_domain > 1) {
+ DEBUG(0,("Found %d records matching domain [%s]\n",
+ ret_domain, domain_sid));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
}
- lm_hash = pdb_get_lanman_passwd((*server_info)->sam_account);
- if (lm_hash) {
- memcpy((*server_info)->first_8_lm_hash, lm_hash, 8);
- }
+ *ret_msgs = msgs;
+ *ret_msgs_domain = msgs_domain;
- memcpy((*server_info)->session_key, user_sess_key, sizeof(user_sess_key));
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS authsam_authenticate(const struct auth_context *auth_context,
+ TALLOC_CTX *mem_ctx, void *sam_ctx,
+ struct ldb_message **msgs,
+ struct ldb_message **msgs_domain,
+ const struct auth_usersupplied_info *user_info,
+ DATA_BLOB *user_sess_key, DATA_BLOB *lm_sess_key)
+{
+ uint16_t acct_flags;
+ const char *workstation_list;
+ NTTIME acct_expiry;
+ NTTIME must_change_time;
+ NTTIME last_set_time;
+ struct samr_Password *lm_pwd, *nt_pwd;
+ NTSTATUS nt_status;
+ const char *domain_dn = msgs_domain[0]->dn;
+
+ acct_flags = samdb_result_acct_flags(msgs[0], "sAMAcctFlags");
+
+ /* Quit if the account was locked out. */
+ if (acct_flags & ACB_AUTOLOCK) {
+ DEBUG(3,("check_sam_security: Account for user %s was locked out.\n",
+ user_info->account_name));
+ return NT_STATUS_ACCOUNT_LOCKED_OUT;
+ }
+
+ nt_status = samdb_result_passwords(mem_ctx, msgs[0], &lm_pwd, &nt_pwd);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ nt_status = authsam_password_ok(auth_context, mem_ctx,
+ acct_flags, lm_pwd, nt_pwd,
+ user_info, user_sess_key, lm_sess_key);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ acct_expiry = samdb_result_nttime(msgs[0], "accountExpires", 0);
+ must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx,
+ domain_dn, msgs[0],
+ "pwdLastSet");
+ last_set_time = samdb_result_nttime(msgs[0], "pwdLastSet", 0);
+
+ workstation_list = samdb_result_string(msgs[0], "userWorkstations", NULL);
+
+ nt_status = authsam_account_ok(mem_ctx, acct_flags,
+ acct_expiry,
+ must_change_time,
+ last_set_time,
+ workstation_list,
+ user_info);
return nt_status;
}
-/* module initialisation */
-NTSTATUS auth_init_sam(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+static NTSTATUS authsam_make_server_info(TALLOC_CTX *mem_ctx, void *sam_ctx,
+ struct ldb_message **msgs,
+ struct ldb_message **msgs_domain,
+ DATA_BLOB user_sess_key, DATA_BLOB lm_sess_key,
+ struct auth_serversupplied_info **_server_info)
{
- if (!make_auth_methods(auth_context, auth_method)) {
- return NT_STATUS_NO_MEMORY;
+ struct auth_serversupplied_info *server_info;
+ struct ldb_message **group_msgs;
+ int group_ret;
+ const char *group_attrs[3] = { "sAMAccountType", "objectSid", NULL };
+ /* find list of sids */
+ struct dom_sid **groupSIDs = NULL;
+ struct dom_sid *account_sid;
+ struct dom_sid *primary_group_sid;
+ const char *str;
+ int i;
+ uint_t rid;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+
+ group_ret = gendb_search(sam_ctx,
+ tmp_ctx, NULL, &group_msgs, group_attrs,
+ "(&(member=%s)(sAMAccountType=*))",
+ msgs[0]->dn);
+ if (group_ret == -1) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ server_info = talloc(mem_ctx, struct auth_serversupplied_info);
+ NT_STATUS_HAVE_NO_MEMORY(server_info);
+
+ if (group_ret > 0) {
+ groupSIDs = talloc_array(server_info, struct dom_sid *, group_ret);
+ NT_STATUS_HAVE_NO_MEMORY(groupSIDs);
}
- (*auth_method)->auth = check_sam_security;
- (*auth_method)->name = "sam";
- return NT_STATUS_OK;
-}
+ /* Need to unroll some nested groups, but not aliases */
+ for (i = 0; i < group_ret; i++) {
+ str = ldb_msg_find_string(group_msgs[i], "objectSid", NULL);
+ groupSIDs[i] = dom_sid_parse_talloc(groupSIDs, str);
+ NT_STATUS_HAVE_NO_MEMORY(groupSIDs[i]);
+ }
+ talloc_free(tmp_ctx);
-/****************************************************************************
-Check SAM security (above) but with a few extra checks.
-****************************************************************************/
+ str = ldb_msg_find_string(msgs[0], "objectSid", NULL);
+ account_sid = dom_sid_parse_talloc(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(account_sid);
-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)
-{
+ primary_group_sid = dom_sid_dup(server_info, account_sid);
+ NT_STATUS_HAVE_NO_MEMORY(primary_group_sid);
- if (!user_info || !auth_context) {
- return NT_STATUS_LOGON_FAILURE;
+ rid = samdb_result_uint(msgs[0], "primaryGroupID", ~0);
+ if (rid == ~0) {
+ if (group_ret > 0) {
+ primary_group_sid = groupSIDs[0];
+ } else {
+ primary_group_sid = NULL;
+ }
+ } else {
+ primary_group_sid->sub_auths[primary_group_sid->num_auths-1] = rid;
}
- /* If we are a domain member, we must not
- attempt to check the password locally,
- unless it is one of our aliases. */
+ server_info->account_sid = account_sid;
+ server_info->primary_group_sid = primary_group_sid;
- if (!is_myname(user_info->domain.str)) {
- DEBUG(7,("The requested user domain is not the local server name. [%s]\\[%s]\n",
- user_info->domain.str,user_info->internal_username.str));
- return NT_STATUS_NO_SUCH_USER;
+ server_info->n_domain_groups = group_ret;
+ server_info->domain_groups = groupSIDs;
+
+ server_info->account_name = talloc_reference(server_info, samdb_result_string(msgs[0], "sAMAccountName", NULL));
+
+ server_info->domain_name = talloc_reference(server_info, samdb_result_string(msgs_domain[0], "flatname", NULL));
+
+ str = samdb_result_string(msgs[0], "displayName", "");
+ server_info->full_name = talloc_strdup(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(server_info->full_name);
+
+ str = samdb_result_string(msgs[0], "scriptPath", "");
+ server_info->logon_script = talloc_strdup(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(server_info->logon_script);
+
+ str = samdb_result_string(msgs[0], "profilePath", "");
+ server_info->profile_path = talloc_strdup(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(server_info->profile_path);
+
+ str = samdb_result_string(msgs[0], "homeDirectory", "");
+ server_info->home_directory = talloc_strdup(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(server_info->home_directory);
+
+ str = samdb_result_string(msgs[0], "homeDrive", "");
+ server_info->home_drive = talloc_strdup(server_info, str);
+ NT_STATUS_HAVE_NO_MEMORY(server_info->home_drive);
+
+ server_info->last_logon = samdb_result_nttime(msgs[0], "lastLogon", 0);
+ server_info->last_logoff = samdb_result_nttime(msgs[0], "lastLogoff", 0);
+ server_info->acct_expiry = samdb_result_nttime(msgs[0], "accountExpires", 0);
+ server_info->last_password_change = samdb_result_nttime(msgs[0], "pwdLastSet", 0);
+
+ server_info->allow_password_change = samdb_result_allow_password_change(sam_ctx, mem_ctx,
+ msgs_domain[0]->dn, msgs[0], "pwdLastSet");
+ server_info->force_password_change = samdb_result_force_password_change(sam_ctx, mem_ctx,
+ msgs_domain[0]->dn, msgs[0], "pwdLastSet");
+
+ server_info->logon_count = samdb_result_uint(msgs[0], "logonCount", 0);
+ server_info->bad_password_count = samdb_result_uint(msgs[0], "badPwdCount", 0);
+
+ server_info->acct_flags = samdb_result_acct_flags(msgs[0], "userAccountControl");
+
+ server_info->user_session_key = user_sess_key;
+ server_info->lm_session_key = lm_sess_key;
+
+ server_info->authenticated = True;
+
+ *_server_info = server_info;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS sam_get_server_info(TALLOC_CTX *mem_ctx, const char *account_name, const char *domain_name,
+ DATA_BLOB user_sess_key, DATA_BLOB lm_sess_key,
+ struct auth_serversupplied_info **server_info)
+{
+ NTSTATUS nt_status;
+
+ struct ldb_message **msgs;
+ struct ldb_message **domain_msgs;
+ void *sam_ctx;
+
+ sam_ctx = samdb_connect(mem_ctx);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
-
- return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
+
+ nt_status = authsam_search_account(mem_ctx, sam_ctx, account_name, domain_name, &msgs, &domain_msgs);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ nt_status = authsam_make_server_info(mem_ctx, sam_ctx, msgs, domain_msgs,
+ user_sess_key, lm_sess_key,
+ server_info);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ talloc_free(msgs);
+ talloc_free(domain_msgs);
+
+ return NT_STATUS_OK;
}
-/* module initialisation */
-NTSTATUS auth_init_samstrict(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+static NTSTATUS authsam_check_password_internals(struct auth_method_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *domain,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
{
- if (!make_auth_methods(auth_context, auth_method)) {
- return NT_STATUS_NO_MEMORY;
+ NTSTATUS nt_status;
+ const char *account_name = user_info->account_name;
+ struct ldb_message **msgs;
+ struct ldb_message **domain_msgs;
+ void *sam_ctx;
+ DATA_BLOB user_sess_key, lm_sess_key;
+
+ if (!account_name || !*account_name) {
+ /* 'not for me' */
+ return NT_STATUS_NOT_IMPLEMENTED;
}
- (*auth_method)->auth = check_samstrict_security;
- (*auth_method)->name = "samstrict";
+ sam_ctx = samdb_connect(mem_ctx);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
+ }
+
+ nt_status = authsam_search_account(mem_ctx, sam_ctx, account_name, domain, &msgs, &domain_msgs);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ nt_status = authsam_authenticate(ctx->auth_ctx, mem_ctx, sam_ctx, msgs, domain_msgs, user_info,
+ &user_sess_key, &lm_sess_key);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ nt_status = authsam_make_server_info(mem_ctx, sam_ctx, msgs, domain_msgs,
+ user_sess_key, lm_sess_key,
+ server_info);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ talloc_free(msgs);
+ talloc_free(domain_msgs);
+
return NT_STATUS_OK;
}
+static NTSTATUS authsam_ignoredomain_check_password(struct auth_method_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
+{
+ return authsam_check_password_internals(ctx, mem_ctx, NULL, user_info, server_info);
+}
+
/****************************************************************************
-Check SAM security (above) but with a few extra checks if we're a DC.
+Check SAM security (above) but with a few extra checks.
****************************************************************************/
-
-static NTSTATUS check_samstrict_dc_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 authsam_check_password(struct auth_method_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
{
-
- if (!user_info || !auth_context) {
- return NT_STATUS_LOGON_FAILURE;
+ const char *domain;
+ BOOL is_local_name, is_my_domain;
+
+ is_local_name = is_myname(user_info->domain_name);
+ is_my_domain = strequal(user_info->domain_name, lp_workgroup());
+
+ /* check whether or not we service this domain/workgroup name */
+ switch (lp_server_role()) {
+ case ROLE_STANDALONE:
+ domain = lp_netbios_name();
+ break;
+ case ROLE_DOMAIN_MEMBER:
+ if (!is_local_name) {
+ DEBUG(6,("authsam_check_password: %s is not one of my local names (%s)\n",
+ user_info->domain_name, (lp_server_role() == ROLE_DOMAIN_MEMBER
+ ? "ROLE_DOMAIN_MEMBER" : "ROLE_STANDALONE") ));
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+ domain = lp_netbios_name();
+ break;
+ case ROLE_DOMAIN_PDC:
+ case ROLE_DOMAIN_BDC:
+ if (!is_local_name && !is_my_domain) {
+ DEBUG(6,("authsam_check_password: %s is not one of my local names or domain name (DC)\n",
+ user_info->domain_name));
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+ domain = lp_workgroup();
+ break;
+ default:
+ DEBUG(6,("authsam_check_password: lp_server_role() has an undefined value\n"));
+ return NT_STATUS_NOT_IMPLEMENTED;
}
- /* If we are a domain member, we must not
- attempt to check the password locally,
- unless it is one of our aliases, empty
- or our domain if we are a logon server.*/
-
+ return authsam_check_password_internals(ctx, mem_ctx, domain, user_info, server_info);
+}
- if ((strcasecmp(lp_workgroup(), user_info->domain.str) != 0) &&
- (!is_myname(user_info->domain.str))) {
- DEBUG(7,("The requested user domain is not the local server name or our domain. [%s]\\[%s]\n",
- user_info->domain.str,user_info->internal_username.str));
- return NT_STATUS_NO_SUCH_USER;
- }
+static const struct auth_operations sam_ignoredomain_ops = {
+ .name = "sam_ignoredomain",
+ .get_challenge = auth_get_challenge_not_implemented,
+ .check_password = authsam_ignoredomain_check_password
+};
- return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
-}
+static const struct auth_operations sam_ops = {
+ .name = "sam",
+ .get_challenge = auth_get_challenge_not_implemented,
+ .check_password = authsam_check_password
+};
-/* module initialisation */
-NTSTATUS auth_init_samstrict_dc(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+NTSTATUS auth_sam_init(void)
{
- if (!make_auth_methods(auth_context, auth_method)) {
- return NT_STATUS_NO_MEMORY;
+ NTSTATUS ret;
+
+ ret = auth_register(&sam_ops);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0,("Failed to register 'sam' auth backend!\n"));
+ return ret;
}
- (*auth_method)->auth = check_samstrict_dc_security;
- (*auth_method)->name = "samstrict_dc";
- return NT_STATUS_OK;
+ ret = auth_register(&sam_ignoredomain_ops);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0,("Failed to register 'sam_ignoredomain' auth backend!\n"));
+ return ret;
+ }
+
+ return ret;
}
git.samba.org / samba.git / blobdiff