/**
* Decode a base64 string in-place - wrapper for the above
**/
_PUBLIC_ void base64_decode_inplace(char *s)
{
DATA_BLOB decoded = base64_decode_data_blob(s);
if ( decoded.length != 0 ) {
memcpy(s, decoded.data, decoded.length);
/* null terminate */
s[decoded.length] = '\0';
} else {
*s = '\0';
}
data_blob_free(&decoded);
}
static void manage_gensec_get_pw_request(enum stdio_helper_mode stdio_helper_mode,
struct loadparm_context *lp_ctx,
char *buf, int length, void **private1,
unsigned int mux_id, void **password)
{
DATA_BLOB in;
if (strlen(buf) < 2) {
DEBUG(1, ("query [%s] invalid", buf));
mux_printf(mux_id, "BH Query invalid\n");
return;
}
if (strlen(buf) > 3) {
in = base64_decode_data_blob(buf + 3);
} else {
in = data_blob(NULL, 0);
}
if (strncmp(buf, "PW ", 3) == 0) {
*password = talloc_strndup(*private1 /* hopefully the right gensec context, useful to use for talloc */,
(const char *)in.data, in.length);
if (*password == NULL) {
DEBUG(1, ("Out of memory\n"));
mux_printf(mux_id, "BH Out of memory\n");
data_blob_free(&in);
return;
}
mux_printf(mux_id, "OK\n");
data_blob_free(&in);
return;
}
DEBUG(1, ("Asked for (and expected) a password\n"));
mux_printf(mux_id, "BH Expected a password\n");
data_blob_free(&in);
}
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 void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
char *buf, int length)
{
static NTLMSSP_STATE *ntlmssp_state = NULL;
SPNEGO_DATA request, response;
DATA_BLOB token;
NTSTATUS status;
ssize_t len;
char *user = NULL;
char *domain = NULL;
const char *reply_code;
char *reply_base64;
pstring reply_argument;
if (strlen(buf) < 2) {
DEBUG(1, ("SPENGO query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (strncmp(buf, "YR", 2) == 0) {
if (ntlmssp_state)
ntlmssp_end(&ntlmssp_state);
} else if (strncmp(buf, "KK", 2) == 0) {
} else {
DEBUG(1, ("SPENGO query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if ( (strlen(buf) == 2)) {
/* no client data, get the negTokenInit offering
mechanisms */
offer_gss_spnego_mechs();
return;
}
/* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
if (strlen(buf) <= 3) {
DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
token = base64_decode_data_blob(buf + 3);
len = read_spnego_data(token, &request);
data_blob_free(&token);
if (len == -1) {
DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (request.type == SPNEGO_NEG_TOKEN_INIT) {
/* Second request from Client. This is where the
client offers its mechanism to use. */
if ( (request.negTokenInit.mechTypes == NULL) ||
(request.negTokenInit.mechTypes[0] == NULL) ) {
DEBUG(1, ("Client did not offer any mechanism"));
x_fprintf(x_stdout, "BH\n");
return;
}
status = NT_STATUS_UNSUCCESSFUL;
if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
if ( request.negTokenInit.mechToken.data == NULL ) {
DEBUG(1, ("Client did not provide NTLMSSP data\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
if ( ntlmssp_state != NULL ) {
DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
"already got one\n"));
x_fprintf(x_stdout, "BH\n");
ntlmssp_end(&ntlmssp_state);
return;
}
if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
return;
}
DEBUG(10, ("got NTLMSSP packet:\n"));
dump_data(10, (const char *)request.negTokenInit.mechToken.data,
request.negTokenInit.mechToken.length);
response.type = SPNEGO_NEG_TOKEN_TARG;
response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
status = ntlmssp_update(ntlmssp_state,
request.negTokenInit.mechToken,
&response.negTokenTarg.responseToken);
}
#ifdef HAVE_KRB5
if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
char *principal;
DATA_BLOB ap_rep;
DATA_BLOB session_key;
if ( request.negTokenInit.mechToken.data == NULL ) {
DEBUG(1, ("Client did not provide Kerberos data\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
response.type = SPNEGO_NEG_TOKEN_TARG;
response.negTokenTarg.supportedMech = SMB_STRDUP(OID_KERBEROS5_OLD);
response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
response.negTokenTarg.responseToken = data_blob(NULL, 0);
status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
&request.negTokenInit.mechToken,
&principal, NULL, &ap_rep,
&session_key);
talloc_destroy(mem_ctx);
/* Now in "principal" we have the name we are
authenticated as. */
if (NT_STATUS_IS_OK(status)) {
domain = strchr_m(principal, '@');
if (domain == NULL) {
DEBUG(1, ("Did not get a valid principal "
"from ads_verify_ticket\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
*domain++ = '\0';
domain = SMB_STRDUP(domain);
user = SMB_STRDUP(principal);
data_blob_free(&ap_rep);
SAFE_FREE(principal);
}
}
#endif
} else {
if ( (request.negTokenTarg.supportedMech == NULL) ||
( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
/* Kerberos should never send a negTokenTarg, OID_NTLMSSP
is the only one we support that sends this stuff */
DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
request.negTokenTarg.supportedMech));
x_fprintf(x_stdout, "BH\n");
return;
}
if (request.negTokenTarg.responseToken.data == NULL) {
DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
status = ntlmssp_update(ntlmssp_state,
request.negTokenTarg.responseToken,
&response.negTokenTarg.responseToken);
response.type = SPNEGO_NEG_TOKEN_TARG;
response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
if (NT_STATUS_IS_OK(status)) {
user = SMB_STRDUP(ntlmssp_state->user);
domain = SMB_STRDUP(ntlmssp_state->domain);
ntlmssp_end(&ntlmssp_state);
}
}
free_spnego_data(&request);
if (NT_STATUS_IS_OK(status)) {
response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
reply_code = "AF";
pstr_sprintf(reply_argument, "%s\\%s", domain, user);
} else if (NT_STATUS_EQUAL(status,
NT_STATUS_MORE_PROCESSING_REQUIRED)) {
response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
reply_code = "TT";
pstr_sprintf(reply_argument, "*");
} else {
response.negTokenTarg.negResult = SPNEGO_REJECT;
reply_code = "NA";
pstrcpy(reply_argument, nt_errstr(status));
}
SAFE_FREE(user);
SAFE_FREE(domain);
len = write_spnego_data(&token, &response);
free_spnego_data(&response);
if (len == -1) {
DEBUG(1, ("Could not write SPNEGO data blob\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
reply_base64 = base64_encode_data_blob(token);
x_fprintf(x_stdout, "%s %s %s\n",
reply_code, reply_base64, reply_argument);
SAFE_FREE(reply_base64);
data_blob_free(&token);
return;
}
static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
char *buf, int length)
{
static NTLMSSP_STATE *ntlmssp_state = NULL;
DATA_BLOB request, reply;
NTSTATUS nt_status;
BOOL first = False;
if (strlen(buf) < 2) {
DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (strlen(buf) > 3) {
request = base64_decode_data_blob(buf + 3);
} else {
request = data_blob(NULL, 0);
}
if (strncmp(buf, "PW ", 3) == 0) {
/* We asked for a password and obviously got it :-) */
opt_password = SMB_STRNDUP((const char *)request.data, request.length);
if (opt_password == NULL) {
DEBUG(1, ("Out of memory\n"));
x_fprintf(x_stdout, "BH\n");
data_blob_free(&request);
return;
}
x_fprintf(x_stdout, "OK\n");
data_blob_free(&request);
return;
}
if (opt_password == NULL) {
/* Request a password from the calling process. After
sending it, the calling process should retry asking for the negotiate. */
DEBUG(10, ("Requesting password\n"));
x_fprintf(x_stdout, "PW\n");
return;
}
if (strncmp(buf, "YR", 2) == 0) {
if (ntlmssp_state)
ntlmssp_end(&ntlmssp_state);
} else if (strncmp(buf, "TT", 2) == 0) {
} else {
DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (!ntlmssp_state) {
if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_client(&ntlmssp_state))) {
x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
return;
}
first = True;
}
DEBUG(10, ("got NTLMSSP packet:\n"));
dump_data(10, (const char *)request.data, request.length);
nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
char *reply_base64 = base64_encode_data_blob(reply);
if (first) {
x_fprintf(x_stdout, "YR %s\n", reply_base64);
} else {
x_fprintf(x_stdout, "KK %s\n", reply_base64);
}
SAFE_FREE(reply_base64);
data_blob_free(&reply);
DEBUG(10, ("NTLMSSP challenge\n"));
} else if (NT_STATUS_IS_OK(nt_status)) {
char *reply_base64 = base64_encode_data_blob(reply);
x_fprintf(x_stdout, "AF %s\n", reply_base64);
SAFE_FREE(reply_base64);
DEBUG(10, ("NTLMSSP OK!\n"));
if (ntlmssp_state)
ntlmssp_end(&ntlmssp_state);
} else {
x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
if (ntlmssp_state)
ntlmssp_end(&ntlmssp_state);
}
data_blob_free(&request);
}
static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
char *buf, int length)
{
static NTLMSSP_STATE *ntlmssp_state = NULL;
DATA_BLOB request, reply;
NTSTATUS nt_status;
if (strlen(buf) < 2) {
DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (strlen(buf) > 3) {
request = base64_decode_data_blob(buf + 3);
} else {
request = data_blob(NULL, 0);
}
if ((strncmp(buf, "PW ", 3) == 0)) {
/* The calling application wants us to use a local password (rather than winbindd) */
opt_password = SMB_STRNDUP((const char *)request.data, request.length);
if (opt_password == NULL) {
DEBUG(1, ("Out of memory\n"));
x_fprintf(x_stdout, "BH\n");
data_blob_free(&request);
return;
}
x_fprintf(x_stdout, "OK\n");
data_blob_free(&request);
return;
}
if (strncmp(buf, "YR", 2) == 0) {
if (ntlmssp_state)
ntlmssp_end(&ntlmssp_state);
} else if (strncmp(buf, "KK", 2) == 0) {
} else {
DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (!ntlmssp_state) {
if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
return;
}
}
DEBUG(10, ("got NTLMSSP packet:\n"));
dump_data(10, (const char *)request.data, request.length);
nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
char *reply_base64 = base64_encode_data_blob(reply);
x_fprintf(x_stdout, "TT %s\n", reply_base64);
SAFE_FREE(reply_base64);
data_blob_free(&reply);
DEBUG(10, ("NTLMSSP challenge\n"));
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
ntlmssp_end(&ntlmssp_state);
} else if (!NT_STATUS_IS_OK(nt_status)) {
x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
} else {
x_fprintf(x_stdout, "AF %s\n", (char *)ntlmssp_state->auth_context);
DEBUG(10, ("NTLMSSP OK!\n"));
}
data_blob_free(&request);
}
static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
char *buf, int length)
{
DATA_BLOB request;
SPNEGO_DATA spnego;
ssize_t len;
if (strlen(buf) <= 3) {
DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
request = base64_decode_data_blob(buf+3);
if (strncmp(buf, "PW ", 3) == 0) {
/* We asked for a password and obviously got it :-) */
opt_password = SMB_STRNDUP((const char *)request.data, request.length);
if (opt_password == NULL) {
DEBUG(1, ("Out of memory\n"));
x_fprintf(x_stdout, "BH\n");
data_blob_free(&request);
return;
}
x_fprintf(x_stdout, "OK\n");
data_blob_free(&request);
return;
}
if ( (strncmp(buf, "TT ", 3) != 0) &&
(strncmp(buf, "AF ", 3) != 0) &&
(strncmp(buf, "NA ", 3) != 0) ) {
DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
x_fprintf(x_stdout, "BH\n");
data_blob_free(&request);
return;
}
/* So we got a server challenge to generate a SPNEGO
client-to-server request... */
len = read_spnego_data(request, &spnego);
data_blob_free(&request);
if (len == -1) {
DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
x_fprintf(x_stdout, "BH\n");
return;
}
if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
/* The server offers a list of mechanisms */
const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
while (*mechType != NULL) {
#ifdef HAVE_KRB5
if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
(strcmp(*mechType, OID_KERBEROS5) == 0) ) {
if (manage_client_krb5_init(spnego))
goto out;
}
#endif
if (strcmp(*mechType, OID_NTLMSSP) == 0) {
if (manage_client_ntlmssp_init(spnego))
goto out;
}
mechType++;
}
DEBUG(1, ("Server offered no compatible mechanism\n"));
x_fprintf(x_stdout, "BH\n");
return;
}
if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
if (spnego.negTokenTarg.supportedMech == NULL) {
/* On accept/reject Windows does not send the
mechanism anymore. Handle that here and
shut down the mechanisms. */
switch (spnego.negTokenTarg.negResult) {
case SPNEGO_ACCEPT_COMPLETED:
x_fprintf(x_stdout, "AF\n");
break;
case SPNEGO_REJECT:
x_fprintf(x_stdout, "NA\n");
break;
default:
DEBUG(1, ("Got a negTokenTarg with no mech and an "
"unknown negResult: %d\n",
spnego.negTokenTarg.negResult));
x_fprintf(x_stdout, "BH\n");
}
ntlmssp_end(&client_ntlmssp_state);
goto out;
}
if (strcmp(spnego.negTokenTarg.supportedMech,
OID_NTLMSSP) == 0) {
manage_client_ntlmssp_targ(spnego);
goto out;
}
#if HAVE_KRB5
if (strcmp(spnego.negTokenTarg.supportedMech,
OID_KERBEROS5_OLD) == 0) {
manage_client_krb5_targ(spnego);
goto out;
}
#endif
}
DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
x_fprintf(x_stdout, "BH\n");
return;
out:
free_spnego_data(&spnego);
return;
}
static BOOL afs_decode_token(const char *string, char **cell,
DATA_BLOB *ticket, struct ClearToken *ct)
{
DATA_BLOB blob;
struct ClearToken result_ct;
char *s = strdup(string);
char *t;
if ((t = strtok(s, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
*cell = strdup(t);
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
if (sscanf(t, "%u", &result_ct.AuthHandle) != 1) {
DEBUG(10, ("sscanf AuthHandle failed\n"));
return False;
}
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
blob = base64_decode_data_blob(t);
if ( (blob.data == NULL) ||
(blob.length != sizeof(result_ct.HandShakeKey) )) {
DEBUG(10, ("invalid key: %x/%d\n", (uint32)blob.data,
blob.length));
return False;
}
memcpy(result_ct.HandShakeKey, blob.data, blob.length);
data_blob_free(&blob);
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
if (sscanf(t, "%u", &result_ct.ViceId) != 1) {
DEBUG(10, ("sscanf ViceId failed\n"));
return False;
}
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
if (sscanf(t, "%u", &result_ct.BeginTimestamp) != 1) {
DEBUG(10, ("sscanf BeginTimestamp failed\n"));
return False;
}
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
if (sscanf(t, "%u", &result_ct.EndTimestamp) != 1) {
DEBUG(10, ("sscanf EndTimestamp failed\n"));
return False;
}
if ((t = strtok(NULL, "\n")) == NULL) {
DEBUG(10, ("strtok failed\n"));
return False;
}
blob = base64_decode_data_blob(t);
if (blob.data == NULL) {
DEBUG(10, ("Could not get ticket\n"));
return False;
}
*ticket = blob;
*ct = result_ct;
return True;
}
static bool afs_decode_token(const char *string, char **cell,
DATA_BLOB *ticket, struct ClearToken *ct)
{
DATA_BLOB blob;
struct ClearToken result_ct;
char *saveptr;
char *s = SMB_STRDUP(string);
char *t;
if ((t = strtok_r(s, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
*cell = SMB_STRDUP(t);
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
if (sscanf(t, "%u", &result_ct.AuthHandle) != 1) {
DEBUG(10, ("sscanf AuthHandle failed\n"));
return false;
}
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
blob = base64_decode_data_blob(t);
if ( (blob.data == NULL) ||
(blob.length != sizeof(result_ct.HandShakeKey) )) {
DEBUG(10, ("invalid key: %x/%lu\n", (uint8_t)*blob.data,
(unsigned long) blob.length));
return false;
}
memcpy(result_ct.HandShakeKey, blob.data, blob.length);
data_blob_free(&blob);
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
if (sscanf(t, "%u", &result_ct.ViceId) != 1) {
DEBUG(10, ("sscanf ViceId failed\n"));
return false;
}
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
if (sscanf(t, "%u", &result_ct.BeginTimestamp) != 1) {
DEBUG(10, ("sscanf BeginTimestamp failed\n"));
return false;
}
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
if (sscanf(t, "%u", &result_ct.EndTimestamp) != 1) {
DEBUG(10, ("sscanf EndTimestamp failed\n"));
return false;
}
if ((t = strtok_r(NULL, "\n", &saveptr)) == NULL) {
DEBUG(10, ("strtok_r failed\n"));
return false;
}
blob = base64_decode_data_blob(t);
if (blob.data == NULL) {
DEBUG(10, ("Could not get ticket\n"));
return false;
}
*ticket = blob;
*ct = result_ct;
return true;
}
