summaryrefslogtreecommitdiffstats
path: root/source/auth/auth.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/auth/auth.c')
-rw-r--r--source/auth/auth.c458
1 files changed, 0 insertions, 458 deletions
diff --git a/source/auth/auth.c b/source/auth/auth.c
deleted file mode 100644
index d43afc71e14..00000000000
--- a/source/auth/auth.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- Password and authentication handling
- Copyright (C) Andrew Bartlett 2001-2002
-
- 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
-
-/** List of various built-in authentication modules */
-
-const struct auth_init_function_entry builtin_auth_init_functions[] = {
- { "guest", auth_init_guest },
- { "rhosts", auth_init_rhosts },
- { "hostsequiv", auth_init_hostsequiv },
- { "sam", auth_init_sam },
- { "samstrict", auth_init_samstrict },
- { "unix", auth_init_unix },
- { "smbserver", auth_init_smbserver },
- { "ntdomain", auth_init_ntdomain },
- { "trustdomain", auth_init_trustdomain },
- { "winbind", auth_init_winbind },
-#ifdef DEVELOPER
- { "name_to_ntstatus", auth_init_name_to_ntstatus },
- { "fixed_challenge", auth_init_fixed_challenge },
-#endif
- { "plugin", auth_init_plugin },
- { NULL, NULL}
-};
-
-/****************************************************************************
- Try to get a challenge out of the various authentication modules.
- Returns a const char of length 8 bytes.
-****************************************************************************/
-
-static const uint8 *get_ntlm_challenge(struct auth_context *auth_context)
-{
- DATA_BLOB challenge = data_blob(NULL, 0);
- char *challenge_set_by = NULL;
- auth_methods *auth_method;
- TALLOC_CTX *mem_ctx;
-
- if (auth_context->challenge.length) {
- DEBUG(5, ("get_ntlm_challenge (auth subsystem): returning previous challenge (normal)\n"));
- return auth_context->challenge.data;
- }
-
- for (auth_method = auth_context->auth_method_list; auth_method; auth_method = auth_method->next)
- {
- if (auth_method->get_chal == NULL) {
- DEBUG(5, ("auth_get_challenge: module %s did not want to specify a challenge\n", auth_method->name));
- continue;
- }
-
- DEBUG(5, ("auth_get_challenge: getting challenge from module %s\n", auth_method->name));
- if (challenge_set_by != NULL) {
- DEBUG(1, ("auth_get_challenge: CONFIGURATION ERROR: authentication method %s has already specified a challenge. Challenge by %s ignored.\n",
- challenge_set_by, auth_method->name));
- continue;
- }
-
- mem_ctx = talloc_init_named("auth_get_challenge for module %s", auth_method->name);
- if (!mem_ctx) {
- smb_panic("talloc_init_named() failed!");
- }
-
- challenge = auth_method->get_chal(auth_context, &auth_method->private_data, mem_ctx);
- if (!challenge.length) {
- DEBUG(3, ("auth_get_challenge: getting challenge from authentication method %s FAILED.\n",
- auth_method->name));
- } else {
- DEBUG(5, ("auth_get_challenge: sucessfully got challenge from module %s\n", auth_method->name));
- auth_context->challenge = challenge;
- challenge_set_by = auth_method->name;
- auth_context->challenge_set_method = auth_method;
- }
- talloc_destroy(mem_ctx);
- }
-
- if (!challenge_set_by) {
- uchar chal[8];
-
- generate_random_buffer(chal, sizeof(chal), False);
- auth_context->challenge = data_blob_talloc(auth_context->mem_ctx,
- chal, sizeof(chal));
-
- challenge_set_by = "random";
- }
-
- DEBUG(5, ("auth_context challenge created by %s\n", challenge_set_by));
- DEBUG(5, ("challenge is: \n"));
- dump_data(5, auth_context->challenge.data, auth_context->challenge.length);
-
- SMB_ASSERT(auth_context->challenge.length == 8);
-
- auth_context->challenge_set_by=challenge_set_by;
-
- return auth_context->challenge.data;
-}
-
-
-/**
- * Check user is in correct domain (if required)
- *
- * @param user Only used to fill in the debug message
- *
- * @param domain The domain to be verified
- *
- * @return True if the user can connect with that domain,
- * False otherwise.
-**/
-
-static BOOL check_domain_match(const char *user, const char *domain)
-{
- /*
- * If we aren't serving to trusted domains, we must make sure that
- * the validation request comes from an account in the same domain
- * as the Samba server
- */
-
- if (!lp_allow_trusted_domains() &&
- !(strequal("", domain) ||
- strequal(lp_workgroup(), domain) ||
- is_netbios_alias_or_name(domain))) {
- DEBUG(1, ("check_domain_match: Attempt to connect as user %s from domain %s denied.\n", user, domain));
- return False;
- } else {
- return True;
- }
-}
-
-/**
- * Check a user's Plaintext, LM or NTLM password.
- *
- * Check a user's password, as given in the user_info struct and return various
- * interesting details in the server_info struct.
- *
- * This function does NOT need to be in a become_root()/unbecome_root() pair
- * as it makes the calls itself when needed.
- *
- * The return value takes precedence over the contents of the server_info
- * struct. When the return is other than NT_STATUS_OK the contents
- * of that structure is undefined.
- *
- * @param user_info Contains the user supplied components, including the passwords.
- * Must be created with make_user_info() or one of its wrappers.
- *
- * @param auth_info Supplies the challenges and some other data.
- * Must be created with make_auth_info(), and the challenges should be
- * filled in, either at creation or by calling the challenge geneation
- * function auth_get_challenge().
- *
- * @param server_info If successful, contains information about the authentication,
- * including a SAM_ACCOUNT struct describing the user.
- *
- * @return An NTSTATUS with NT_STATUS_OK or an appropriate error.
- *
- **/
-
-static NTSTATUS check_ntlm_password(const struct auth_context *auth_context,
- const struct auth_usersupplied_info *user_info,
- struct auth_serversupplied_info **server_info)
-{
-
- NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
- const char *pdb_username;
- auth_methods *auth_method;
- TALLOC_CTX *mem_ctx;
-
- if (!user_info || !auth_context || !server_info) {
- return NT_STATUS_LOGON_FAILURE;
- }
-
- DEBUG(3, ("check_password: Checking password for unmapped user [%s]\\[%s]@[%s] with the new password interface\n",
- user_info->client_domain.str, user_info->smb_name.str, user_info->wksta_name.str));
-
- DEBUG(3, ("check_password: mapped user is: [%s]\\[%s]@[%s]\n",
- user_info->domain.str, user_info->internal_username.str, user_info->wksta_name.str));
- if (auth_context->challenge_set_by) {
- DEBUG(10, ("auth_context challenge created by %s\n", auth_context->challenge_set_by));
- }
- DEBUG(10, ("challenge is: \n"));
- dump_data(5, auth_context->challenge.data, auth_context->challenge.length);
-
-#ifdef DEBUG_PASSWORD
- DEBUG(100, ("user_info has passwords of length %d and %d\n",
- user_info->lm_resp.length, user_info->nt_resp.length));
- DEBUG(100, ("lm:\n"));
- dump_data(100, user_info->lm_resp.data, user_info->lm_resp.length);
- DEBUG(100, ("nt:\n"));
- dump_data(100, user_info->nt_resp.data, user_info->nt_resp.length);
-#endif
-
- /* This needs to be sorted: If it doesn't match, what should we do? */
- if (!check_domain_match(user_info->smb_name.str, user_info->domain.str)) {
- return NT_STATUS_LOGON_FAILURE;
- }
-
- for (auth_method = auth_context->auth_method_list;auth_method; auth_method = auth_method->next)
- {
- mem_ctx = talloc_init_named("%s authentication for user %s\\%s", auth_method->name,
- user_info->domain.str, user_info->smb_name.str);
-
- nt_status = auth_method->auth(auth_context, auth_method->private_data, mem_ctx, user_info, server_info);
- if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG(3, ("check_password: %s authentication for user [%s] suceeded\n",
- auth_method->name, user_info->smb_name.str));
- } else {
- DEBUG(5, ("check_password: %s authentication for user [%s] FAILED with error %s\n",
- auth_method->name, user_info->smb_name.str, nt_errstr(nt_status)));
- }
-
- talloc_destroy(mem_ctx);
-
- if (NT_STATUS_IS_OK(nt_status)) {
- break;
- }
- }
-
- /* This is one of the few places the *relies* (rather than just sets defaults
- on the value of lp_security(). This needs to change. A new paramater
- perhaps? */
- if (lp_security() >= SEC_SERVER) {
- smb_user_control(user_info, *server_info, nt_status);
- }
-
- if (NT_STATUS_IS_OK(nt_status)) {
- pdb_username = pdb_get_username((*server_info)->sam_account);
- if (!(*server_info)->guest) {
- /* We might not be root if we are an RPC call */
- become_root();
- nt_status = smb_pam_accountcheck(pdb_username);
- unbecome_root();
-
- if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG(5, ("check_password: PAM Account for user [%s] suceeded\n",
- pdb_username));
- } else {
- DEBUG(3, ("check_password: PAM Account for user [%s] FAILED with error %s\n",
- pdb_username, nt_errstr(nt_status)));
- }
- }
-
- if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG((*server_info)->guest ? 5 : 2,
- ("check_password: %sauthentication for user [%s] -> [%s] -> [%s] suceeded\n",
- (*server_info)->guest ? "guest " : "",
- user_info->smb_name.str,
- user_info->internal_username.str,
- pdb_username));
- }
- }
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(2, ("check_password: Authentication for user [%s] -> [%s] FAILED with error %s\n",
- user_info->smb_name.str, user_info->internal_username.str,
- nt_errstr(nt_status)));
- ZERO_STRUCTP(server_info);
- }
- return nt_status;
-}
-
-/***************************************************************************
- Clear out a auth_context, and destroy the attached TALLOC_CTX
-***************************************************************************/
-
-static void free_auth_context(struct auth_context **auth_context)
-{
- if (*auth_context != NULL) {
- talloc_destroy((*auth_context)->mem_ctx);
- }
- *auth_context = NULL;
-}
-
-/***************************************************************************
- Make a auth_info struct
-***************************************************************************/
-
-static NTSTATUS make_auth_context(struct auth_context **auth_context)
-{
- TALLOC_CTX *mem_ctx;
-
- mem_ctx = talloc_init_named("authentication context");
-
- *auth_context = talloc(mem_ctx, sizeof(**auth_context));
- if (!*auth_context) {
- DEBUG(0,("make_auth_context: talloc failed!\n"));
- talloc_destroy(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
- ZERO_STRUCTP(*auth_context);
-
- (*auth_context)->mem_ctx = mem_ctx;
- (*auth_context)->check_ntlm_password = check_ntlm_password;
- (*auth_context)->get_ntlm_challenge = get_ntlm_challenge;
- (*auth_context)->free = free_auth_context;
-
- return NT_STATUS_OK;
-}
-
-/***************************************************************************
- Make a auth_info struct for the auth subsystem
-***************************************************************************/
-
-static NTSTATUS make_auth_context_text_list(struct auth_context **auth_context, char **text_list)
-{
- auth_methods *list = NULL;
- auth_methods *t = NULL;
- auth_methods *tmp;
- int i;
- NTSTATUS nt_status;
-
- if (!text_list) {
- DEBUG(2,("No auth method list!?\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context(auth_context))) {
- return nt_status;
- }
-
- for (;*text_list; text_list++)
- {
- DEBUG(5,("Attempting to find an auth method to match %s\n", *text_list));
- for (i = 0; builtin_auth_init_functions[i].name; i++)
- {
- if (strequal(builtin_auth_init_functions[i].name, *text_list))
- {
-
- char *module_name = smb_xstrdup(*text_list);
- char *module_params = NULL;
- char *p;
-
- p = strchr(module_name, ':');
-
- if (p) {
- *p = 0;
-
- module_params = p+1;
-
- trim_string(module_params, " ", " ");
- }
-
- trim_string(module_name, " ", " ");
-
- DEBUG(5,("Found auth method %s (at pos %d)\n", *text_list, i));
- if (NT_STATUS_IS_OK(builtin_auth_init_functions[i].init(*auth_context, module_params, &t))) {
- DEBUG(5,("auth method %s has a valid init\n", *text_list));
- DLIST_ADD_END(list, t, tmp);
- } else {
- DEBUG(0,("auth method %s did not correctly init\n", *text_list));
- }
- SAFE_FREE(module_name);
- break;
- }
- }
- }
-
- (*auth_context)->auth_method_list = list;
-
- return nt_status;
-}
-
-/***************************************************************************
- Make a auth_context struct for the auth subsystem
-***************************************************************************/
-
-NTSTATUS make_auth_context_subsystem(struct auth_context **auth_context)
-{
- char **auth_method_list = NULL;
- NTSTATUS nt_status;
-
- if (lp_auth_methods() && !str_list_copy(&auth_method_list, lp_auth_methods())) {
- return NT_STATUS_NO_MEMORY;
- }
-
- if (auth_method_list == NULL) {
- switch (lp_security())
- {
- case SEC_DOMAIN:
- DEBUG(5,("Making default auth method list for security=domain\n"));
- auth_method_list = str_list_make("guest sam winbind ntdomain", NULL);
- break;
- case SEC_SERVER:
- DEBUG(5,("Making default auth method list for security=server\n"));
- auth_method_list = str_list_make("guest sam smbserver", NULL);
- break;
- case SEC_USER:
- if (lp_encrypted_passwords()) {
- DEBUG(5,("Making default auth method list for security=user, encrypt passwords = yes\n"));
- auth_method_list = str_list_make("guest sam", NULL);
- } else {
- DEBUG(5,("Making default auth method list for security=user, encrypt passwords = no\n"));
- auth_method_list = str_list_make("guest unix", NULL);
- }
- break;
- case SEC_SHARE:
- if (lp_encrypted_passwords()) {
- DEBUG(5,("Making default auth method list for security=share, encrypt passwords = yes\n"));
- auth_method_list = str_list_make("guest sam", NULL);
- } else {
- DEBUG(5,("Making default auth method list for security=share, encrypt passwords = no\n"));
- auth_method_list = str_list_make("guest unix", NULL);
- }
- break;
- case SEC_ADS:
- DEBUG(5,("Making default auth method list for security=ADS\n"));
- auth_method_list = str_list_make("guest sam ads winbind ntdomain", NULL);
- break;
- default:
- DEBUG(5,("Unknown auth method!\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
- } else {
- DEBUG(5,("Using specified auth order\n"));
- }
-
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context_text_list(auth_context, auth_method_list))) {
- str_list_free(&auth_method_list);
- return nt_status;
- }
-
- str_list_free(&auth_method_list);
- return nt_status;
-}
-
-/***************************************************************************
- Make a auth_info struct with a fixed challenge
-***************************************************************************/
-
-NTSTATUS make_auth_context_fixed(struct auth_context **auth_context, uchar chal[8])
-{
- NTSTATUS nt_status;
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(auth_context))) {
- return nt_status;
- }
-
- (*auth_context)->challenge = data_blob(chal, 8);
- return nt_status;
-}
-
-
generated by cgit (git 2.34.1) at 2024-06-19 21:20:42 +0000