Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/source3/auth/auth_builtin.c b/source3/auth/auth_builtin.c
new file mode 100644
index 0000000..646fbea
--- /dev/null
+++ b/source3/auth/auth_builtin.c
@@ -0,0 +1,184 @@
+/* 
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "auth.h"
+#include "lib/util/string_wrappers.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+/**
+ * Return a guest logon for anonymous 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_anonymous_security(const struct auth_context *auth_context,
+				void *my_private_data,
+				TALLOC_CTX *mem_ctx,
+				const struct auth_usersupplied_info *user_info,
+				struct auth_serversupplied_info **server_info)
+{
+	DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
+	if (user_info->mapped.account_name && *user_info->mapped.account_name) {
+		/* mark this as 'not for me' */
+		return NT_STATUS_NOT_IMPLEMENTED;
+	}
+
+	switch (user_info->password_state) {
+	case AUTH_PASSWORD_PLAIN:
+		if (user_info->password.plaintext != NULL &&
+		    strlen(user_info->password.plaintext) > 0)
+		{
+			/* mark this as 'not for me' */
+			return NT_STATUS_NOT_IMPLEMENTED;
+		}
+		break;
+	case AUTH_PASSWORD_HASH:
+		if (user_info->password.hash.lanman != NULL) {
+			/* mark this as 'not for me' */
+			return NT_STATUS_NOT_IMPLEMENTED;
+		}
+		if (user_info->password.hash.nt != NULL) {
+			/* mark this as 'not for me' */
+			return NT_STATUS_NOT_IMPLEMENTED;
+		}
+		break;
+	case AUTH_PASSWORD_RESPONSE:
+		if (user_info->password.response.lanman.length == 1) {
+			if (user_info->password.response.lanman.data[0] != '\0') {
+				/* mark this as 'not for me' */
+				return NT_STATUS_NOT_IMPLEMENTED;
+			}
+		} else if (user_info->password.response.lanman.length > 1) {
+			/* mark this as 'not for me' */
+			return NT_STATUS_NOT_IMPLEMENTED;
+		}
+		if (user_info->password.response.nt.length > 0) {
+			/* mark this as 'not for me' */
+			return NT_STATUS_NOT_IMPLEMENTED;
+		}
+		break;
+	}
+
+	return make_server_info_anonymous(NULL, server_info);
+}
+
+/* Guest modules initialisation */
+
+static NTSTATUS auth_init_anonymous(
+	struct auth_context *auth_context,
+	const char *options,
+	struct auth_methods **auth_method)
+{
+	struct auth_methods *result;
+
+	result = talloc_zero(auth_context, struct auth_methods);
+	if (result == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	result->auth = check_anonymous_security;
+	result->name = "anonymous";
+
+        *auth_method = result;
+	return NT_STATUS_OK;
+}
+
+#ifdef DEVELOPER
+/** 
+ * Return an error based on username
+ *
+ * This function allows the testing of obscure 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 struct auth_usersupplied_info *user_info,
+						struct auth_serversupplied_info **server_info)
+{
+	NTSTATUS nt_status;
+	fstring user;
+	long error_num;
+
+	DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
+	fstrcpy(user, user_info->client.account_name);
+
+	if (strnequal("NT_STATUS", user, strlen("NT_STATUS"))) {
+		if (!strupper_m(user)) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		return nt_status_string_to_code(user);
+	}
+
+	if (!strlower_m(user)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+	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,
+	struct auth_methods **auth_method)
+{
+	struct auth_methods *result;
+
+	result = talloc_zero(auth_context, struct auth_methods);
+	if (result == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	result->auth = check_name_to_ntstatus_security;
+	result->name = "name_to_ntstatus";
+
+        *auth_method = result;
+	return NT_STATUS_OK;
+}
+
+#endif /* DEVELOPER */
+
+NTSTATUS auth_builtin_init(TALLOC_CTX *mem_ctx)
+{
+	smb_register_auth(AUTH_INTERFACE_VERSION, "anonymous", auth_init_anonymous);
+#ifdef DEVELOPER
+	smb_register_auth(AUTH_INTERFACE_VERSION, "name_to_ntstatus", auth_init_name_to_ntstatus);
+#endif
+	return NT_STATUS_OK;
+}