/*
Fill in the auth_user_info_unix and auth_unix_token elements in a struct session_info
*/
NTSTATUS auth_session_info_fill_unix( struct wbc_context *wbc_ctx,
struct loadparm_context *lp_ctx,
struct auth_session_info *session_info)
{
char *su;
size_t len;
NTSTATUS status = security_token_to_unix_token(session_info, wbc_ctx,
session_info->security_token,
&session_info->unix_token);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
session_info->unix_info = talloc_zero(session_info, struct auth_user_info_unix);
NT_STATUS_HAVE_NO_MEMORY(session_info->unix_info);
session_info->unix_info->system = security_token_is_system(session_info->security_token);
session_info->unix_info->unix_name = talloc_asprintf(session_info->unix_info,
"%s%s%s", session_info->info->domain_name,
lpcfg_winbind_separator(lp_ctx),
session_info->info->account_name);
NT_STATUS_HAVE_NO_MEMORY(session_info->unix_info->unix_name);
len = strlen(session_info->info->account_name) + 1;
session_info->unix_info->sanitized_username = su = talloc_array(session_info->unix_info, char, len);
NT_STATUS_HAVE_NO_MEMORY(su);
alpha_strcpy(su, session_info->info->account_name,
". _-$", len);
return NT_STATUS_OK;
}
static bool torture_winbind_struct_info(struct torture_context *torture)
{
struct winbindd_response rep;
const char *separator;
ZERO_STRUCT(rep);
torture_comment(torture, "Running WINBINDD_INFO (struct based)\n");
DO_STRUCT_REQ_REP(WINBINDD_INFO, NULL, &rep);
separator = torture_setting_string(torture,
"winbindd_separator",
lpcfg_winbind_separator(torture->lp_ctx));
torture_assert_int_equal(torture,
rep.data.info.winbind_separator,
*separator,
"winbind separator doesn't match");
torture_comment(torture, "Samba Version '%s'\n",
rep.data.info.samba_version);
return true;
}
bool wb_samba3_split_username(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx,
const char *domuser,
char **domain, char **user)
{
char *p = strchr(domuser, *lpcfg_winbind_separator(lp_ctx));
if (p == NULL) {
*domain = talloc_strdup(mem_ctx, lpcfg_workgroup(lp_ctx));
} else {
*domain = talloc_strndup(mem_ctx, domuser,
PTR_DIFF(p, domuser));
domuser = p+1;
}
*user = talloc_strdup(mem_ctx, domuser);
return ((*domain != NULL) && (*user != NULL));
}
static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
struct loadparm_context *lp_ctx,
char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
char *request, *parameter;
static DATA_BLOB challenge;
static DATA_BLOB lm_response;
static DATA_BLOB nt_response;
static char *full_username;
static char *username;
static char *domain;
static char *plaintext_password;
static bool ntlm_server_1_user_session_key;
static bool ntlm_server_1_lm_session_key;
if (strequal(buf, ".")) {
if (!full_username && !username) {
mux_printf(mux_id, "Error: No username supplied!\n");
} else if (plaintext_password) {
/* handle this request as plaintext */
if (!full_username) {
if (asprintf(&full_username, "%s%c%s", domain, *lpcfg_winbind_separator(lp_ctx), username) < 0) {
mux_printf(mux_id, "Error: Out of memory in asprintf!\n.\n");
return;
}
}
if (check_plaintext_auth(full_username, plaintext_password, false)) {
mux_printf(mux_id, "Authenticated: Yes\n");
} else {
mux_printf(mux_id, "Authenticated: No\n");
}
} else if (!lm_response.data && !nt_response.data) {
mux_printf(mux_id, "Error: No password supplied!\n");
} else if (!challenge.data) {
mux_printf(mux_id, "Error: No lanman-challenge supplied!\n");
} else {
char *error_string = NULL;
DATA_BLOB lm_key;
DATA_BLOB user_session_key;
uint32_t flags = 0;
if (full_username && !username) {
SAFE_FREE(username);
SAFE_FREE(domain);
if (!parse_ntlm_auth_domain_user(full_username, &username,
&domain,
*lpcfg_winbind_separator(lp_ctx))) {
/* username might be 'tainted', don't print into our new-line deleimianted stream */
mux_printf(mux_id, "Error: Could not parse into domain and username\n");
}
}
if (!domain) {
domain = smb_xstrdup(lpcfg_workgroup(lp_ctx));
}
if (ntlm_server_1_lm_session_key)
flags |= NTLM_AUTH_FLAG_LMKEY;
if (ntlm_server_1_user_session_key)
flags |= NTLM_AUTH_FLAG_USER_SESSION_KEY;
if (!NT_STATUS_IS_OK(
local_pw_check_specified(lp_ctx,
username,
domain,
lpcfg_netbios_name(lp_ctx),
&challenge,
&lm_response,
&nt_response,
flags,
&lm_key,
&user_session_key,
&error_string,
NULL))) {
mux_printf(mux_id, "Authenticated: No\n");
mux_printf(mux_id, "Authentication-Error: %s\n.\n", error_string);
SAFE_FREE(error_string);
} else {
static char zeros[16];
char *hex_lm_key;
char *hex_user_session_key;
mux_printf(mux_id, "Authenticated: Yes\n");
if (ntlm_server_1_lm_session_key
&& lm_key.length
&& (memcmp(zeros, lm_key.data,
lm_key.length) != 0)) {
hex_encode(lm_key.data,
lm_key.length,
&hex_lm_key);
mux_printf(mux_id, "LANMAN-Session-Key: %s\n", hex_lm_key);
SAFE_FREE(hex_lm_key);
}
if (ntlm_server_1_user_session_key
&& user_session_key.length
&& (memcmp(zeros, user_session_key.data,
user_session_key.length) != 0)) {
hex_encode(user_session_key.data,
user_session_key.length,
&hex_user_session_key);
mux_printf(mux_id, "User-Session-Key: %s\n", hex_user_session_key);
SAFE_FREE(hex_user_session_key);
}
}
}
/* clear out the state */
challenge = data_blob(NULL, 0);
nt_response = data_blob(NULL, 0);
lm_response = data_blob(NULL, 0);
SAFE_FREE(full_username);
SAFE_FREE(username);
SAFE_FREE(domain);
SAFE_FREE(plaintext_password);
ntlm_server_1_user_session_key = false;
ntlm_server_1_lm_session_key = false;
mux_printf(mux_id, ".\n");
return;
}
request = buf;
/* Indicates a base64 encoded structure */
parameter = strstr(request, ":: ");
if (!parameter) {
parameter = strstr(request, ": ");
if (!parameter) {
DEBUG(0, ("Parameter not found!\n"));
mux_printf(mux_id, "Error: Parameter not found!\n.\n");
return;
}
parameter[0] ='\0';
parameter++;
parameter[0] ='\0';
parameter++;
} else {
parameter[0] ='\0';
parameter++;
parameter[0] ='\0';
parameter++;
parameter[0] ='\0';
parameter++;
base64_decode_inplace(parameter);
}
if (strequal(request, "LANMAN-Challenge")) {
challenge = strhex_to_data_blob(NULL, parameter);
if (challenge.length != 8) {
mux_printf(mux_id, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
parameter,
(int)challenge.length);
challenge = data_blob(NULL, 0);
}
} else if (strequal(request, "NT-Response")) {
nt_response = strhex_to_data_blob(NULL, parameter);
if (nt_response.length < 24) {
mux_printf(mux_id, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
parameter,
(int)nt_response.length);
nt_response = data_blob(NULL, 0);
}
} else if (strequal(request, "LANMAN-Response")) {
lm_response = strhex_to_data_blob(NULL, parameter);
if (lm_response.length != 24) {
mux_printf(mux_id, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
parameter,
(int)lm_response.length);
lm_response = data_blob(NULL, 0);
}
} else if (strequal(request, "Password")) {
plaintext_password = smb_xstrdup(parameter);
} else if (strequal(request, "NT-Domain")) {
domain = smb_xstrdup(parameter);
} else if (strequal(request, "Username")) {
username = smb_xstrdup(parameter);
} else if (strequal(request, "Full-Username")) {
full_username = smb_xstrdup(parameter);
} else if (strequal(request, "Request-User-Session-Key")) {
ntlm_server_1_user_session_key = strequal(parameter, "Yes");
} else if (strequal(request, "Request-LanMan-Session-Key")) {
ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
} else {
mux_printf(mux_id, "Error: Unknown request %s\n.\n", request);
}
}
static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
struct loadparm_context *lp_ctx,
char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
DATA_BLOB in;
DATA_BLOB out = data_blob(NULL, 0);
char *out_base64 = NULL;
const char *reply_arg = NULL;
struct gensec_ntlm_state {
struct gensec_security *gensec_state;
const char *set_password;
};
struct gensec_ntlm_state *state;
struct tevent_context *ev;
struct imessaging_context *msg;
NTSTATUS nt_status;
bool first = false;
const char *reply_code;
struct cli_credentials *creds;
static char *want_feature_list = NULL;
static DATA_BLOB session_key;
TALLOC_CTX *mem_ctx;
if (*private1) {
state = (struct gensec_ntlm_state *)*private1;
} else {
state = talloc_zero(NULL, struct gensec_ntlm_state);
if (!state) {
mux_printf(mux_id, "BH No Memory\n");
exit(1);
}
*private1 = state;
if (opt_password) {
state->set_password = opt_password;
}
}
if (strlen(buf) < 2) {
DEBUG(1, ("query [%s] invalid", buf));
mux_printf(mux_id, "BH Query invalid\n");
return;
}
if (strlen(buf) > 3) {
if(strncmp(buf, "SF ", 3) == 0) {
DEBUG(10, ("Setting flags to negotiate\n"));
talloc_free(want_feature_list);
want_feature_list = talloc_strndup(state, buf+3, strlen(buf)-3);
mux_printf(mux_id, "OK\n");
return;
}
in = base64_decode_data_blob(buf + 3);
} else {
in = data_blob(NULL, 0);
}
if (strncmp(buf, "YR", 2) == 0) {
if (state->gensec_state) {
talloc_free(state->gensec_state);
state->gensec_state = NULL;
}
} else if ( (strncmp(buf, "OK", 2) == 0)) {
/* Just return BH, like ntlm_auth from Samba 3 does. */
mux_printf(mux_id, "BH Command expected\n");
data_blob_free(&in);
return;
} else if ( (strncmp(buf, "TT ", 3) != 0) &&
(strncmp(buf, "KK ", 3) != 0) &&
(strncmp(buf, "AF ", 3) != 0) &&
(strncmp(buf, "NA ", 3) != 0) &&
(strncmp(buf, "UG", 2) != 0) &&
(strncmp(buf, "PW ", 3) != 0) &&
(strncmp(buf, "GK", 2) != 0) &&
(strncmp(buf, "GF", 2) != 0)) {
DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
mux_printf(mux_id, "BH SPNEGO request invalid\n");
data_blob_free(&in);
return;
}
ev = s4_event_context_init(state);
if (!ev) {
exit(1);
}
mem_ctx = talloc_named(NULL, 0, "manage_gensec_request internal mem_ctx");
/* setup gensec */
if (!(state->gensec_state)) {
switch (stdio_helper_mode) {
case GSS_SPNEGO_CLIENT:
case NTLMSSP_CLIENT_1:
/* setup the client side */
nt_status = gensec_client_start(NULL, &state->gensec_state, ev,
lpcfg_gensec_settings(NULL, lp_ctx));
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
exit(1);
}
break;
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
{
const char *winbind_method[] = { "winbind", NULL };
struct auth4_context *auth_context;
msg = imessaging_client_init(state, lpcfg_imessaging_path(state, lp_ctx), ev);
if (!msg) {
talloc_free(mem_ctx);
exit(1);
}
nt_status = auth_context_create_methods(mem_ctx,
winbind_method,
ev,
msg,
lp_ctx,
NULL,
&auth_context);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
exit(1);
}
if (!NT_STATUS_IS_OK(gensec_server_start(state, ev,
lpcfg_gensec_settings(state, lp_ctx),
auth_context, &state->gensec_state))) {
talloc_free(mem_ctx);
exit(1);
}
break;
}
default:
talloc_free(mem_ctx);
abort();
}
creds = cli_credentials_init(state->gensec_state);
cli_credentials_set_conf(creds, lp_ctx);
if (opt_username) {
cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED);
}
if (opt_domain) {
cli_credentials_set_domain(creds, opt_domain, CRED_SPECIFIED);
}
if (state->set_password) {
cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED);
} else {
cli_credentials_set_password_callback(creds, get_password);
creds->priv_data = (void*)(uintptr_t)mux_id;
}
if (opt_workstation) {
cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED);
}
switch (stdio_helper_mode) {
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
cli_credentials_set_machine_account(creds, lp_ctx);
break;
default:
break;
}
gensec_set_credentials(state->gensec_state, creds);
gensec_want_feature_list(state->gensec_state, want_feature_list);
switch (stdio_helper_mode) {
case GSS_SPNEGO_CLIENT:
case GSS_SPNEGO_SERVER:
nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO);
if (!in.length) {
first = true;
}
break;
case NTLMSSP_CLIENT_1:
if (!in.length) {
first = true;
}
/* fall through */
case SQUID_2_5_NTLMSSP:
nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_NTLMSSP);
break;
default:
talloc_free(mem_ctx);
abort();
}
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH GENSEC mech failed to start\n");
talloc_free(mem_ctx);
return;
}
}
/* update */
if (strncmp(buf, "PW ", 3) == 0) {
state->set_password = talloc_strndup(state,
(const char *)in.data,
in.length);
cli_credentials_set_password(gensec_get_credentials(state->gensec_state),
state->set_password,
CRED_SPECIFIED);
mux_printf(mux_id, "OK\n");
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "UG", 2) == 0) {
int i;
char *grouplist = NULL;
struct auth_session_info *session_info;
nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("gensec_session_info failed: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH %s\n", nt_errstr(nt_status));
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
/* get the string onto the context */
grouplist = talloc_strdup(mem_ctx, "");
for (i=0; i<session_info->security_token->num_sids; i++) {
struct security_token *token = session_info->security_token;
const char *sidstr = dom_sid_string(session_info,
&token->sids[i]);
grouplist = talloc_asprintf_append_buffer(grouplist, "%s,", sidstr);
}
mux_printf(mux_id, "GL %s\n", grouplist);
talloc_free(session_info);
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "GK", 2) == 0) {
char *base64_key;
DEBUG(10, ("Requested session key\n"));
nt_status = gensec_session_key(state->gensec_state, mem_ctx, &session_key);
if(!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("gensec_session_key failed: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH No session key\n");
talloc_free(mem_ctx);
return;
} else {
base64_key = base64_encode_data_blob(state, session_key);
mux_printf(mux_id, "GK %s\n", base64_key);
talloc_free(base64_key);
}
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "GF", 2) == 0) {
struct ntlmssp_state *ntlmssp_state;
uint32_t neg_flags;
ntlmssp_state = talloc_get_type(state->gensec_state->private_data,
struct ntlmssp_state);
neg_flags = ntlmssp_state->neg_flags;
DEBUG(10, ("Requested negotiated feature flags\n"));
mux_printf(mux_id, "GF 0x%08x\n", neg_flags);
return;
}
nt_status = gensec_update(state->gensec_state, mem_ctx, in, &out);
/* don't leak 'bad password'/'no such user' info to the network client */
nt_status = nt_status_squash(nt_status);
if (out.length) {
out_base64 = base64_encode_data_blob(mem_ctx, out);
} else {
out_base64 = NULL;
}
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
reply_arg = "*";
if (first) {
reply_code = "YR";
} else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
reply_code = "KK";
} else if (state->gensec_state->gensec_role == GENSEC_SERVER) {
reply_code = "TT";
} else {
abort();
}
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
reply_code = "BH NT_STATUS_ACCESS_DENIED";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
reply_code = "BH NT_STATUS_UNSUCCESSFUL";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (!NT_STATUS_IS_OK(nt_status)) {
reply_code = "NA";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if /* OK */ (state->gensec_state->gensec_role == GENSEC_SERVER) {
struct auth_session_info *session_info;
nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
reply_code = "BH Failed to retrive session info";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC failed to retrieve the session info: %s\n", nt_errstr(nt_status)));
} else {
reply_code = "AF";
reply_arg = talloc_asprintf(state->gensec_state,
"%s%s%s", session_info->info->domain_name,
lpcfg_winbind_separator(lp_ctx), session_info->info->account_name);
talloc_free(session_info);
}
} else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
reply_code = "AF";
reply_arg = out_base64;
} else {
abort();
}
switch (stdio_helper_mode) {
case GSS_SPNEGO_SERVER:
mux_printf(mux_id, "%s %s %s\n", reply_code,
out_base64 ? out_base64 : "*",
reply_arg ? reply_arg : "*");
break;
default:
if (out_base64) {
mux_printf(mux_id, "%s %s\n", reply_code, out_base64);
} else if (reply_arg) {
mux_printf(mux_id, "%s %s\n", reply_code, reply_arg);
} else {
mux_printf(mux_id, "%s\n", reply_code);
}
}
talloc_free(mem_ctx);
return;
}
static NTSTATUS local_pw_check_specified(struct loadparm_context *lp_ctx,
const char *username,
const char *domain,
const char *workstation,
const DATA_BLOB *challenge,
const DATA_BLOB *lm_response,
const DATA_BLOB *nt_response,
uint32_t flags,
DATA_BLOB *lm_session_key,
DATA_BLOB *user_session_key,
char **error_string,
char **unix_name)
{
NTSTATUS nt_status;
struct samr_Password lm_pw, nt_pw;
struct samr_Password *lm_pwd, *nt_pwd;
TALLOC_CTX *mem_ctx = talloc_init("local_pw_check_specified");
if (!mem_ctx) {
nt_status = NT_STATUS_NO_MEMORY;
} else {
E_md4hash(opt_password, nt_pw.hash);
if (E_deshash(opt_password, lm_pw.hash)) {
lm_pwd = &lm_pw;
} else {
lm_pwd = NULL;
}
nt_pwd = &nt_pw;
nt_status = ntlm_password_check(mem_ctx,
lpcfg_lanman_auth(lp_ctx),
lpcfg_ntlm_auth(lp_ctx),
MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT |
MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT,
challenge,
lm_response,
nt_response,
username,
username,
domain,
lm_pwd, nt_pwd, user_session_key, lm_session_key);
if (NT_STATUS_IS_OK(nt_status)) {
if (unix_name) {
if (asprintf(unix_name, "%s%c%s", domain,
*lpcfg_winbind_separator(lp_ctx),
username) < 0) {
nt_status = NT_STATUS_NO_MEMORY;
}
}
} else {
DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
domain, username, workstation,
nt_errstr(nt_status)));
}
talloc_free(mem_ctx);
}
if (error_string) {
*error_string = strdup(nt_errstr(nt_status));
}
return nt_status;
}