/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
Authenticate to a remote server
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Andrew Bartlett 2001
#include "includes.h"
-extern pstring global_myname;
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
extern userdom_struct current_user_info;
/****************************************************************************
struct cli_state *cli = NULL;
fstring desthost;
struct in_addr dest_ip;
- char *p, *pserver;
+ const char *p;
+ char *pserver;
BOOL connected_ok = False;
- if (!(cli = cli_initialise(cli)))
+ if (!(cli = cli_initialise()))
return NULL;
/* security = server just can't function with spnego */
p = pserver;
while(next_token( &p, desthost, LIST_SEP, sizeof(desthost))) {
- standard_sub_basic(current_user_info.smb_name, desthost);
- strupper(desthost);
+ standard_sub_basic(current_user_info.smb_name, current_user_info.domain,
+ desthost, sizeof(desthost));
+ strupper_m(desthost);
if(!resolve_name( desthost, &dest_ip, 0x20)) {
DEBUG(1,("server_cryptkey: Can't resolve address for %s\n",desthost));
continue;
}
+ /* we use a mutex to prevent two connections at once - when a
+ Win2k PDC get two connections where one hasn't completed a
+ session setup yet it will send a TCP reset to the first
+ connection (tridge) */
+
+ if (!grab_server_mutex(desthost)) {
+ return NULL;
+ }
+
if (cli_connect(cli, desthost, &dest_ip)) {
DEBUG(3,("connected to password server %s\n",desthost));
connected_ok = True;
}
if (!connected_ok) {
+ release_server_mutex();
DEBUG(0,("password server not available\n"));
cli_shutdown(cli);
return NULL;
}
-
- if (!attempt_netbios_session_request(cli, global_myname, desthost, &dest_ip))
+
+ if (!attempt_netbios_session_request(&cli, global_myname(),
+ desthost, &dest_ip)) {
+ release_server_mutex();
+ DEBUG(1,("password server fails session request\n"));
+ cli_shutdown(cli);
return NULL;
+ }
if (strequal(desthost,myhostname())) {
exit_server("Password server loop!");
if (!cli_negprot(cli)) {
DEBUG(1,("%s rejected the negprot\n",desthost));
+ release_server_mutex();
cli_shutdown(cli);
return NULL;
}
if (cli->protocol < PROTOCOL_LANMAN2 ||
- !(cli->sec_mode & 1)) {
+ !(cli->sec_mode & NEGOTIATE_SECURITY_USER_LEVEL)) {
DEBUG(1,("%s isn't in user level security mode\n",desthost));
+ release_server_mutex();
cli_shutdown(cli);
return NULL;
}
- DEBUG(3,("password server OK\n"));
+ /* Get the first session setup done quickly, to avoid silly
+ Win2k bugs. (The next connection to the server will kill
+ this one...
+ */
+
+ if (!NT_STATUS_IS_OK(cli_session_setup(cli, "", "", 0, "", 0,
+ ""))) {
+ DEBUG(0,("%s rejected the initial session setup (%s)\n",
+ desthost, cli_errstr(cli)));
+ release_server_mutex();
+ cli_shutdown(cli);
+ return NULL;
+ }
+
+ release_server_mutex();
+ DEBUG(3,("password server OK\n"));
+
return cli;
}
{
struct cli_state **cli = (struct cli_state **)private_data_pointer;
if (*cli && (*cli)->initialised) {
+ DEBUG(10, ("Shutting down smbserver connection\n"));
cli_shutdown(*cli);
}
+ *private_data_pointer = NULL;
}
/****************************************************************************
static void send_server_keepalive(void **private_data_pointer)
{
- struct cli_state **cli = (struct cli_state **)private_data_pointer;
-
/* also send a keepalive to the password server if its still
connected */
- if (cli && *cli && (*cli)->initialised) {
- if (!send_keepalive((*cli)->fd)) {
- DEBUG( 2, ( "password server keepalive failed.\n"));
- cli_shutdown(*cli);
+ if (private_data_pointer) {
+ struct cli_state *cli = (struct cli_state *)(*private_data_pointer);
+ if (cli && cli->initialised) {
+ if (!send_keepalive(cli->fd)) {
+ DEBUG( 2, ( "send_server_keepalive: password server keepalive failed.\n"));
+ cli_shutdown(cli);
+ *private_data_pointer = NULL;
+ }
}
}
}
Get the challenge out of a password server.
****************************************************************************/
-static DATA_BLOB auth_get_challenge_server(void **my_private_data,
- TALLOC_CTX *mem_ctx,
- const struct authsupplied_info *auth_info)
+static DATA_BLOB auth_get_challenge_server(const struct auth_context *auth_context,
+ void **my_private_data,
+ TALLOC_CTX *mem_ctx)
{
struct cli_state *cli = server_cryptkey(mem_ctx);
if (cli) {
DEBUG(3,("using password server validation\n"));
- if ((cli->sec_mode & 2) == 0) {
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
/* We can't work with unencrypted password servers
unless 'encrypt passwords = no' */
DEBUG(5,("make_auth_info_server: Server is unencrypted, no challenge available..\n"));
}
*my_private_data = (void *)cli;
-
- return data_blob(cli->secblob.data,8);
+
+ /* The return must be allocated on the caller's mem_ctx, as our own will be
+ destoyed just after the call. */
+ return data_blob_talloc(auth_context->mem_ctx, cli->secblob.data,8);
} else {
return data_blob(NULL, 0);
}
- Validate a password with the password server.
****************************************************************************/
-static NTSTATUS check_smbserver_security(void *my_private_data,
+static NTSTATUS check_smbserver_security(const struct auth_context *auth_context,
+ void *my_private_data,
TALLOC_CTX *mem_ctx,
const auth_usersupplied_info *user_info,
- const auth_authsupplied_info *auth_info,
auth_serversupplied_info **server_info)
{
struct cli_state *cli;
static fstring baduser;
static BOOL tested_password_server = False;
static BOOL bad_password_server = False;
- NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
+ NTSTATUS nt_status = NT_STATUS_NOT_IMPLEMENTED;
BOOL locally_made_cli = False;
/*
* password file.
*/
- if(is_netbios_alias_or_name(user_info->domain.str)) {
+ if(is_myname(user_info->domain)) {
DEBUG(3,("check_smbserver_security: Requested domain was for this machine.\n"));
- return NT_STATUS_LOGON_FAILURE;
+ return nt_status;
}
- cli = my_private_data;
+ cli = (struct cli_state *)my_private_data;
if (cli) {
} else {
return NT_STATUS_LOGON_FAILURE;
}
- if ((cli->sec_mode & 2) == 0) {
+ if ((cli->sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) == 0) {
if (user_info->encrypted) {
DEBUG(1,("password server %s is plaintext, but we are encrypted. This just can't work :-(\n", cli->desthost));
return NT_STATUS_LOGON_FAILURE;
}
} else {
- if (memcmp(cli->secblob.data, auth_info->challenge.data, 8) != 0) {
+ if (memcmp(cli->secblob.data, auth_context->challenge.data, 8) != 0) {
DEBUG(1,("the challenge that the password server (%s) supplied us is not the one we gave our client. This just can't work :-(\n", cli->desthost));
return NT_STATUS_LOGON_FAILURE;
}
if(baduser[0] == 0) {
fstrcpy(baduser, INVALID_USER_PREFIX);
- fstrcat(baduser, global_myname);
+ fstrcat(baduser, global_myname());
}
/*
* need to detect this as some versions of NT4.x are broken. JRA.
*/
- /* I sure as hell hope that there arn't servers out there that take
+ /* I sure as hell hope that there aren't servers out there that take
* NTLMv2 and have this bug, as we don't test for that...
* - abartlet@samba.org
*/
if ((!tested_password_server) && (lp_paranoid_server_security())) {
- if (cli_session_setup(cli, baduser, (char *)badpass, sizeof(badpass),
- (char *)badpass, sizeof(badpass), user_info->domain.str)) {
+ if (NT_STATUS_IS_OK(cli_session_setup(cli, baduser,
+ (char *)badpass,
+ sizeof(badpass),
+ (char *)badpass,
+ sizeof(badpass),
+ user_info->domain))) {
/*
* We connected to the password server so we
if (!user_info->encrypted) {
/* Plaintext available */
- if (!cli_session_setup(cli, user_info->smb_name.str,
- (char *)user_info->plaintext_password.data,
- user_info->plaintext_password.length,
- NULL, 0,
- user_info->domain.str)) {
- DEBUG(1,("password server %s rejected the password\n", cli->desthost));
- /* Make this cli_nt_error() when the conversion is in */
- nt_status = cli_nt_error(cli);
- } else {
- nt_status = NT_STATUS_OK;
- }
+ nt_status = cli_session_setup(
+ cli, user_info->smb_name,
+ (char *)user_info->plaintext_password.data,
+ user_info->plaintext_password.length,
+ NULL, 0, user_info->domain);
+
} else {
- if (!cli_session_setup(cli, user_info->smb_name.str,
- (char *)user_info->lm_resp.data,
- user_info->lm_resp.length,
- (char *)user_info->nt_resp.data,
- user_info->nt_resp.length,
- user_info->domain.str)) {
- DEBUG(1,("password server %s rejected the password\n", cli->desthost));
- /* Make this cli_nt_error() when the conversion is in */
- nt_status = cli_nt_error(cli);
- } else {
- nt_status = NT_STATUS_OK;
- }
+ nt_status = cli_session_setup(
+ cli, user_info->smb_name,
+ (char *)user_info->lm_resp.data,
+ user_info->lm_resp.length,
+ (char *)user_info->nt_resp.data,
+ user_info->nt_resp.length,
+ user_info->domain);
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(1,("password server %s rejected the password: %s\n",
+ cli->desthost, nt_errstr(nt_status)));
}
/* if logged in as guest then reject */
cli_ulogoff(cli);
- if NT_STATUS_IS_OK(nt_status) {
- struct passwd *pass = Get_Pwnam(user_info->internal_username.str);
- if (pass) {
- if (!make_server_info_pw(server_info, pass)) {
- nt_status = NT_STATUS_NO_MEMORY;
- }
- } else {
+ if (NT_STATUS_IS_OK(nt_status)) {
+ fstring real_username;
+ struct passwd *pass;
+
+ if ( (pass = smb_getpwnam( NULL, user_info->internal_username,
+ real_username, True )) != NULL )
+ {
+ nt_status = make_server_info_pw(server_info, pass->pw_name, pass);
+ TALLOC_FREE(pass);
+ }
+ else
+ {
nt_status = NT_STATUS_NO_SUCH_USER;
}
}
return(nt_status);
}
-BOOL auth_init_smbserver(auth_methods **auth_method)
+static NTSTATUS auth_init_smbserver(struct auth_context *auth_context, const char* param, auth_methods **auth_method)
{
- if (!make_auth_methods(auth_method)) {
- return False;
+ if (!make_auth_methods(auth_context, auth_method)) {
+ return NT_STATUS_NO_MEMORY;
}
+ (*auth_method)->name = "smbserver";
(*auth_method)->auth = check_smbserver_security;
(*auth_method)->get_chal = auth_get_challenge_server;
(*auth_method)->send_keepalive = send_server_keepalive;
(*auth_method)->free_private_data = free_server_private_data;
- return True;
+ return NT_STATUS_OK;
+}
+
+NTSTATUS auth_server_init(void)
+{
+ return smb_register_auth(AUTH_INTERFACE_VERSION, "smbserver", auth_init_smbserver);
}
git.samba.org / tprouty / samba.git / blobdiff