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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:20:00 +0000
commit8daa83a594a2e98f39d764422bfbdbc62c9efd44 (patch)
tree4099e8021376c7d8c05bdf8503093d80e9c7bad0 /source3/auth/auth_builtin.c
parentInitial commit. (diff)
downloadsamba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.tar.xz
samba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.zip
Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source3/auth/auth_builtin.c')
-rw-r--r--source3/auth/auth_builtin.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/source3/auth/auth_builtin.c b/source3/auth/auth_builtin.c
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+/*
+ 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;
+}