--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Generic authentication types
+ Copyright (C) Andrew Bartlett 2001-2002
+ Copyright (C) Jelmer Vernooij 2002
+
+ 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"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+/**
+ * Return a guest logon for guest users (username = "")
+ *
+ * Typically used as the first module in the auth chain, this allows
+ * guest logons to be dealt with in one place. Non-guest logons 'fail'
+ * and pass onto the next module.
+ **/
+
+static NTSTATUS check_guest_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)
+{
+ /* mark this as 'not for me' */
+ NTSTATUS nt_status = NT_STATUS_NOT_IMPLEMENTED;
+
+ if (!(user_info->internal_username.str
+ && *user_info->internal_username.str)) {
+ nt_status = make_server_info_guest(server_info);
+ }
+
+ return nt_status;
+}
+
+/* Guest modules initialisation */
+
+static NTSTATUS auth_init_guest(struct auth_context *auth_context, const char *options, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method))
+ return NT_STATUS_NO_MEMORY;
+
+ (*auth_method)->auth = check_guest_security;
+ (*auth_method)->name = "guest";
+ return NT_STATUS_OK;
+}
+
+#ifdef DEVELOPER
+/**
+ * Return an error based on username
+ *
+ * This function allows the testing of obsure errors, as well as the generation
+ * of NT_STATUS -> DOS error mapping tables.
+ *
+ * This module is of no value to end-users.
+ *
+ * The password is ignored.
+ *
+ * @return An NTSTATUS value based on the username
+ **/
+
+static NTSTATUS check_name_to_ntstatus_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)
+{
+ NTSTATUS nt_status;
+ fstring user;
+ long error_num;
+ fstrcpy(user, user_info->smb_name.str);
+
+ if (strnequal("NT_STATUS", user, strlen("NT_STATUS"))) {
+ strupper_m(user);
+ return nt_status_string_to_code(user);
+ }
+
+ strlower_m(user);
+ error_num = strtoul(user, NULL, 16);
+
+ DEBUG(5,("check_name_to_ntstatus_security: Error for user %s was %lx\n", user, error_num));
+
+ nt_status = NT_STATUS(error_num);
+
+ return nt_status;
+}
+
+/** Module initialisation function */
+
+static NTSTATUS auth_init_name_to_ntstatus(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method))
+ return NT_STATUS_NO_MEMORY;
+
+ (*auth_method)->auth = check_name_to_ntstatus_security;
+ (*auth_method)->name = "name_to_ntstatus";
+ return NT_STATUS_OK;
+}
+
+/**
+ * Return a 'fixed' challenge instead of a variable one.
+ *
+ * The idea of this function is to make packet snifs consistant
+ * with a fixed challenge, so as to aid debugging.
+ *
+ * This module is of no value to end-users.
+ *
+ * This module does not actually authenticate the user, but
+ * just pretenteds to need a specified challenge.
+ * This module removes *all* security from the challenge-response system
+ *
+ * @return NT_STATUS_UNSUCCESSFUL
+ **/
+
+static NTSTATUS check_fixed_challenge_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)
+{
+ return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/****************************************************************************
+ Get the challenge out of a password server.
+****************************************************************************/
+
+static DATA_BLOB auth_get_fixed_challenge(const struct auth_context *auth_context,
+ void **my_private_data,
+ TALLOC_CTX *mem_ctx)
+{
+ const char *challenge = "I am a teapot";
+ return data_blob(challenge, 8);
+}
+
+
+/** Module initailisation function */
+
+static NTSTATUS auth_init_fixed_challenge(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+{
+ if (!make_auth_methods(auth_context, auth_method))
+ return NT_STATUS_NO_MEMORY;
+
+ (*auth_method)->auth = check_fixed_challenge_security;
+ (*auth_method)->get_chal = auth_get_fixed_challenge;
+ (*auth_method)->name = "fixed_challenge";
+ return NT_STATUS_OK;
+}
+#endif /* DEVELOPER */
+
+NTSTATUS auth_builtin_init(void)
+{
+ smb_register_auth(AUTH_INTERFACE_VERSION, "guest", auth_init_guest);
+#ifdef DEVELOPER
+ smb_register_auth(AUTH_INTERFACE_VERSION, "fixed_challenge", auth_init_fixed_challenge);
+ smb_register_auth(AUTH_INTERFACE_VERSION, "name_to_ntstatus", auth_init_name_to_ntstatus);
+#endif
+ return NT_STATUS_OK;
+}
projects / samba / blobdiff