r6793: Move auth_sam to use the dnsDomain rather than the
[samba.git] / source / auth / auth_sam.c
index 1c33b26528688659a171b44c0a57b4ce6218cd15..947de1ef8c441c1ea133d12d827372c45728d00a 100644 (file)
@@ -3,6 +3,7 @@
    Password and authentication handling
    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
+#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,
-                               const char *username,
-                               uint16 acct_flags,
-                               const uint8 lm_pw[16], const uint8 nt_pw[16],
-                               const auth_usersupplied_info *user_info, 
-                               DATA_BLOB *user_sess_key, 
-                               DATA_BLOB *lm_sess_key)
+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)
 {
+       NTSTATUS status;
+
        if (acct_flags & ACB_PWNOTREQ) {
                if (lp_null_passwords()) {
                        DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n", 
-                                username));
+                                user_info->account_name));
                        return NT_STATUS_OK;
                } else {
                        DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n", 
-                                username));
+                                user_info->account_name));
                        return NT_STATUS_LOGON_FAILURE;
                }               
        }
 
-       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.str, 
-                                  user_info->client_domain.str, 
-                                  lm_pw, nt_pw, user_sess_key, lm_sess_key);
+       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);
+
+       if (user_sess_key && user_sess_key->data) {
+               talloc_steal(auth_context, user_sess_key->data);
+       }
+       if (lm_sess_key && lm_sess_key->data) {
+               talloc_steal(auth_context, lm_sess_key->data);
+       }
+
+       return NT_STATUS_OK;
 }
 
 
@@ -65,52 +80,48 @@ static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
  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,
-                              const char *username,
-                              uint16 acct_flags,
-                              NTTIME *acct_expiry,
-                              NTTIME *must_change_time,
-                              NTTIME *last_set_time,
-                              const char *workstation_list,
-                              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)
 {
-       DEBUG(4,("sam_account_ok: Checking SMB password for user %s\n", username));
+       DEBUG(4,("authsam_account_ok: Checking SMB password for user %s\n", user_info->account_name));
 
        /* Quit if the account was disabled. */
        if (acct_flags & ACB_DISABLED) {
-               DEBUG(1,("sam_account_ok: Account for user '%s' was disabled.\n", username));
+               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,("sam_account_ok: Account for user %s was locked out.\n", username));
+               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 */
-       
-       if (!nt_time_is_zero(acct_expiry) && time(NULL) > nt_time_to_unix(acct_expiry)) {
-               DEBUG(1,("sam_account_ok: Account for user '%s' has expired.\n", username));
-               DEBUG(3,("sam_account_ok: Account expired at '%s'.\n", 
+       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 (!(acct_flags & ACB_PWNOEXP)) {
-
                /* check for immediate expiry "must change at next logon" */
-               if (nt_time_is_zero(must_change_time) && !nt_time_is_zero(last_set_time)) {
+               if (must_change_time == 0 && last_set_time != 0) {
                        DEBUG(1,("sam_account_ok: Account for user '%s' password must change!.\n", 
-                                username));
+                                user_info->account_name));
                        return NT_STATUS_PASSWORD_MUST_CHANGE;
                }
 
                /* check for expired password */
-               if (!nt_time_is_zero(must_change_time) && nt_time_to_unix(must_change_time) < time(NULL)) {
+               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", 
-                                username));
+                                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;
@@ -118,7 +129,6 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
        }
 
        /* Test workstation. Workstation list is comma separated. */
-
        if (workstation_list && *workstation_list) {
                BOOL invalid_ws = True;
                const char *s = workstation_list;
@@ -126,312 +136,477 @@ static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
                fstring tok;
                        
                while (next_token(&s, tok, ",", sizeof(tok))) {
-                       DEBUG(10,("sam_account_ok: 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_flags & ACB_DOMTRUST) {
-               DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", username));
+               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_flags & ACB_SVRTRUST) {
-               DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", username));
+               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_flags & ACB_WSTRUST) {
-               DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", username));
+               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)
 {
        struct ldb_message **msgs;
        struct ldb_message **msgs_domain;
-       void *sam_ctx;
-       char *username = user_info->internal_username.str;
-       uint16 acct_flags;
-       const char *workstation_list;
-       NTTIME acct_expiry;
-       NTTIME must_change_time;
-       NTTIME last_set_time;
-
-       uint_t ret;
-       uint_t ret_domain;
 
-       const char *domain_dn;
-       const char *domain_sid;
+       int ret;
+       int ret_domain;
 
-       NTSTATUS nt_status;
-       DATA_BLOB user_sess_key = data_blob(NULL, 0);
-       DATA_BLOB lm_sess_key = data_blob(NULL, 0);
-       uint8 *lm_pwd, *nt_pwd;
+       const char *domain_dn = NULL;
 
-       const char *attrs[] = {"unicodePwd", "lmPwdHash", "ntPwdHash", 
+       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[] =  {"name"};
+       const char *domain_attrs[] =  {"flatname", "objectSid"};
 
-       if (!user_info || !auth_context) {
-               return NT_STATUS_UNSUCCESSFUL;
-       }
-       
-       sam_ctx = samdb_connect();
-       if (sam_ctx == NULL) {
-               return NT_STATUS_INVALID_SYSTEM_SERVICE;
+       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 (ret_domain == 0) {
+                       DEBUG(3,("sam_search_user: Couldn't find domain [%s] in samdb.\n", 
+                                domain_name));
+                       return NT_STATUS_NO_SUCH_USER;
+               }
+
+               if (ret_domain > 1) {
+                       DEBUG(0,("Found %d records matching domain [%s]\n", 
+                                ret_domain, domain_name));
+                       return NT_STATUS_INTERNAL_DB_CORRUPTION;
+               }
+
+               domain_dn = msgs_domain[0]->dn;
        }
+
        /* pull the user attributes */
-       ret = samdb_search(sam_ctx, mem_ctx, NULL, &msgs, attrs,
+       ret = gendb_search(sam_ctx, mem_ctx, domain_dn, &msgs, attrs,
                           "(&(sAMAccountName=%s)(objectclass=user))", 
-                          username);
+                          account_name);
+       if (ret == -1) {
+               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+       }
 
        if (ret == 0) {
-               DEBUG(3,("check_sam_security: Couldn't find user [%s] in passdb file.\n", 
-                        username));
-               samdb_close(sam_ctx);
+               DEBUG(3,("sam_search_user: Couldn't find user [%s] in samdb.\n", 
+                        account_name));
                return NT_STATUS_NO_SUCH_USER;
        }
 
        if (ret > 1) {
-               DEBUG(1,("Found %d records matching user [%s]\n", ret, username));
-               samdb_close(sam_ctx);
-               return NT_STATUS_INTERNAL_DB_CORRUPTION;
-       }
-       
-       domain_sid = samdb_result_sid_prefix(mem_ctx, msgs[0], "objectSid");
-       if (!domain_sid) {
-               samdb_close(sam_ctx);
+               DEBUG(0,("Found %d records matching user [%s]\n", ret, account_name));
                return NT_STATUS_INTERNAL_DB_CORRUPTION;
        }
 
-       /* find the domain's DN */
-       ret_domain = samdb_search(sam_ctx, mem_ctx, NULL, &msgs_domain, domain_attrs,
-                          "(&(objectSid=%s)(objectclass=domain))", 
-                          domain_sid);
+       if (!domain_name) {
+               const char *domain_sid;
 
-       if (ret_domain == 0) {
-               DEBUG(3,("check_sam_security: Couldn't find domain [%s] in passdb file.\n", 
-                        domain_sid));
-               samdb_close(sam_ctx);
-               return NT_STATUS_NO_SUCH_USER;
-       }
+               domain_sid = samdb_result_sid_prefix(mem_ctx, msgs[0], "objectSid");
+               if (!domain_sid) {
+                       return NT_STATUS_INTERNAL_DB_CORRUPTION;
+               }
 
-       if (ret_domain > 1) {
-               DEBUG(1,("Found %d records matching domain [%s]\n", 
-                        ret_domain, domain_sid));
-               samdb_close(sam_ctx);
-               return NT_STATUS_INTERNAL_DB_CORRUPTION;
+               /* 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;
+               }
        }
 
-       domain_dn = msgs_domain[0]->dn;
+       *ret_msgs = msgs;
+       *ret_msgs_domain = msgs_domain;
        
+       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", 
-                        username));
-               samdb_close(sam_ctx);
+                        user_info->account_name));
                return NT_STATUS_ACCOUNT_LOCKED_OUT;
        }
 
-       if (!NT_STATUS_IS_OK(nt_status = samdb_result_passwords(mem_ctx, msgs[0], 
-                                                               &lm_pwd, &nt_pwd))) {
-               return nt_status;
-       }
+       nt_status = samdb_result_passwords(mem_ctx, msgs[0], &lm_pwd, &nt_pwd);
+       NT_STATUS_NOT_OK_RETURN(nt_status);
 
-       nt_status = sam_password_ok(auth_context, mem_ctx, 
-                                   username, acct_flags, 
-                                   lm_pwd, nt_pwd,
-                                   user_info, &user_sess_key, &lm_sess_key);
-       
-       if (!NT_STATUS_IS_OK(nt_status)) {
-               samdb_close(sam_ctx);
-               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_pwd_change(sam_ctx, mem_ctx, 
-                                                        domain_dn, msgs[0], "pwdLastSet");
+       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 = sam_account_ok(mem_ctx, username, acct_flags, 
-                                  &acct_expiry, 
-                                  &must_change_time, 
-                                  &last_set_time, 
-                                  workstation_list,
-                                  user_info);
+       nt_status = authsam_account_ok(mem_ctx, acct_flags, 
+                                      acct_expiry, 
+                                      must_change_time, 
+                                      last_set_time, 
+                                      workstation_list,
+                                      user_info);
+
+       return nt_status;
+}
 
-       if (!NT_STATUS_IS_OK(nt_status)) {
-               samdb_close(sam_ctx);
-               return nt_status;
+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)
+{
+       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;
        }
 
-       if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info, username))) {            
-               DEBUG(0,("check_sam_security: make_server_info_sam() failed with '%s'\n", nt_errstr(nt_status)));
-               samdb_close(sam_ctx);
-               return nt_status;
+       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);
        }
 
-       {
-               struct ldb_message **group_msgs;
-               char *dn = msgs[0]->dn;
-               int group_ret;
-               const char *group_attrs[3] = { "sAMAccountType", "objectSid", NULL }; 
-               /* find list of sids */
-               struct dom_sid **groupSIDs = NULL;
-               struct dom_sid *user_sid;
-               struct dom_sid *group_sid;
-               const char *sidstr;
-               int i;
-
-               group_ret = samdb_search(sam_ctx,
-                                        mem_ctx, NULL, &group_msgs, group_attrs,
-                                        "(&(member=%s)(sAMAccountType=*))", 
-                                        dn);
-               
-               if (!(groupSIDs = talloc_realloc_p((*server_info)->mem_ctx, groupSIDs, 
-                                                  struct dom_sid *, group_ret))) {
-                       talloc_destroy((*server_info)->mem_ctx);
-                       samdb_close(sam_ctx);
-                       return NT_STATUS_NO_MEMORY;
-               }
+       /* 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]);
+       }
 
-               /* Need to unroll some nested groups, but not aliases */
-               for (i = 0; i < group_ret; i++) {
-                       sidstr = ldb_msg_find_string(group_msgs[i], "objectSid", NULL);
-                       groupSIDs[i] = dom_sid_parse_talloc((*server_info)->mem_ctx, sidstr);
-               }
-               
-               sidstr = ldb_msg_find_string(msgs[0], "objectSid", NULL);
-               user_sid = dom_sid_parse_talloc((*server_info)->mem_ctx, sidstr);
-               group_sid = dom_sid_parse_talloc((*server_info)->mem_ctx, sidstr);
-               group_sid->sub_auths[group_sid->num_auths-1] 
-                       = samdb_result_uint(msgs[0], "primaryGroupID", 0);
-
-               if (!NT_STATUS_IS_OK(nt_status = create_nt_user_token((*server_info)->mem_ctx, 
-                                                                    user_sid, group_sid, 
-                                                                    group_ret, groupSIDs, 
-                                                                    False, &(*server_info)->ptok))) {
-                       DEBUG(1,("check_sam_security: create_nt_user_token failed with '%s'\n", nt_errstr(nt_status)));
-                       free_server_info(server_info);
-                       samdb_close(sam_ctx);
-                       return nt_status;
+       talloc_free(tmp_ctx);
+
+       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);
+
+       primary_group_sid = dom_sid_dup(server_info, account_sid);
+       NT_STATUS_HAVE_NO_MEMORY(primary_group_sid);
+
+       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;
        }
 
-       (*server_info)->guest = False;
+       server_info->account_sid = account_sid;
+       server_info->primary_group_sid = primary_group_sid;
+       
+       server_info->n_domain_groups = group_ret;
+       server_info->domain_groups = groupSIDs;
 
-       (*server_info)->user_session_key = user_sess_key;
-       (*server_info)->lm_session_key = lm_sess_key;
+       server_info->account_name = talloc_reference(server_info, samdb_result_string(msgs[0], "sAMAccountName", NULL));
 
-       return nt_status;
+       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;
 }
 
-/* module initialisation */
-static NTSTATUS auth_init_sam_ignoredomain(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
+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)
 {
-       if (!make_auth_methods(auth_context, auth_method)) {
-               return NT_STATUS_NO_MEMORY;
+       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;
        }
 
-       (*auth_method)->auth = check_sam_security;      
-       (*auth_method)->name = "sam_ignoredomain";
-       return NT_STATUS_OK;
-}
+       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);
 
-/****************************************************************************
-Check SAM security (above) but with a few extra checks.
-****************************************************************************/
+       talloc_free(msgs);
+       talloc_free(domain_msgs);
+
+       return NT_STATUS_OK;
+}
 
-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 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)
 {
+       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 (!user_info || !auth_context) {
-               return NT_STATUS_LOGON_FAILURE;
+       if (!account_name || !*account_name) {
+               /* 'not for me' */
+               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. */
-       
-       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;
+       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, &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;
 }
 
-/* module initialisation */
-static NTSTATUS auth_init_sam(struct auth_context *auth_context, const char *param, auth_methods **auth_method) 
+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)
 {
-       if (!make_auth_methods(auth_context, auth_method)) {
-               return NT_STATUS_NO_MEMORY;
+       return authsam_check_password_internals(ctx, mem_ctx, NULL, user_info, server_info);
+}
+
+/****************************************************************************
+Check SAM security (above) but with a few extra checks.
+****************************************************************************/
+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)
+{
+       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;
        }
 
-       (*auth_method)->auth = check_samstrict_security;
-       (*auth_method)->name = "sam";
-       return NT_STATUS_OK;
+       return authsam_check_password_internals(ctx, mem_ctx, domain, user_info, server_info);
 }
 
+static const struct auth_operations sam_ignoredomain_ops = {
+       .name           = "sam_ignoredomain",
+       .get_challenge  = auth_get_challenge_not_implemented,
+       .check_password = authsam_ignoredomain_check_password
+};
+
+static const struct auth_operations sam_ops = {
+       .name           = "sam",
+       .get_challenge  = auth_get_challenge_not_implemented,
+       .check_password = authsam_check_password
+};
+
 NTSTATUS auth_sam_init(void)
 {
        NTSTATUS ret;
-       struct auth_operations ops;
 
-       ops.name = "sam";
-       ops.init = auth_init_sam;
-       ret = register_backend("auth", &ops);
+       ret = auth_register(&sam_ops);
        if (!NT_STATUS_IS_OK(ret)) {
-               DEBUG(0,("Failed to register '%s' auth backend!\n",
-                       ops.name));
+               DEBUG(0,("Failed to register 'sam' auth backend!\n"));
                return ret;
        }
 
-       ops.name = "sam_ignoredomain";
-       ops.init = auth_init_sam_ignoredomain;
-       ret = register_backend("auth", &ops);
+       ret = auth_register(&sam_ignoredomain_ops);
        if (!NT_STATUS_IS_OK(ret)) {
-               DEBUG(0,("Failed to register '%s' auth backend!\n",
-                       ops.name));
+               DEBUG(0,("Failed to register 'sam_ignoredomain' auth backend!\n"));
                return ret;
        }