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Diffstat (limited to '')
| -rw-r--r-- | source3/auth/auth_builtin.c | 184 |
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; +} |