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
+ 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,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-#include "auth/auth.h"
-#include "lib/crypto/crypto.h"
#include "auth/ntlmssp/ntlmssp.h"
+#include "auth/ntlmssp/msrpc_parse.h"
+#include "librpc/gen_ndr/ndr_dcerpc.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_proto.h"
+#include "auth/auth.h"
+#include "auth/auth_proto.h"
+#include "param/param.h"
/**
* Callbacks for NTLMSSP - for both client and server operating modes
static const struct ntlmssp_callbacks {
enum ntlmssp_role role;
- enum ntlmssp_message_type ntlmssp_command;
- NTSTATUS (*fn)(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- DATA_BLOB in, DATA_BLOB *out);
+ enum ntlmssp_message_type command;
+ NTSTATUS (*sync_fn)(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ DATA_BLOB in, DATA_BLOB *out);
} ntlmssp_callbacks[] = {
- {NTLMSSP_CLIENT, NTLMSSP_INITIAL, ntlmssp_client_initial},
- {NTLMSSP_SERVER, NTLMSSP_NEGOTIATE, ntlmssp_server_negotiate},
- {NTLMSSP_CLIENT, NTLMSSP_CHALLENGE, ntlmssp_client_challenge},
- {NTLMSSP_SERVER, NTLMSSP_AUTH, ntlmssp_server_auth},
+ {
+ .role = NTLMSSP_CLIENT,
+ .command = NTLMSSP_INITIAL,
+ .sync_fn = ntlmssp_client_initial,
+ },{
+ .role = NTLMSSP_SERVER,
+ .command = NTLMSSP_NEGOTIATE,
+ .sync_fn = ntlmssp_server_negotiate,
+ },{
+ .role = NTLMSSP_CLIENT,
+ .command = NTLMSSP_CHALLENGE,
+ .sync_fn = ntlmssp_client_challenge,
+ },{
+ .role = NTLMSSP_SERVER,
+ .command = NTLMSSP_AUTH,
+ .sync_fn = ntlmssp_server_auth,
+ }
};
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
+ if (neg_flags & NTLMSSP_NEGOTIATE_DATAGRAM_STYLE)
+ DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DATAGRAM_STYLE\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
+ if (neg_flags & NTLMSSP_CHAL_ACCEPT_RESPONSE)
+ DEBUGADD(4, (" NTLMSSP_CHAL_ACCEPT_RESPONSE\n"));
+ if (neg_flags & NTLMSSP_CHAL_NON_NT_SESSION_KEY)
+ DEBUGADD(4, (" NTLMSSP_CHAL_NON_NT_SESSION_KEY\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
if (neg_flags & NTLMSSP_CHAL_TARGET_INFO)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
+ if (neg_flags & NTLMSSP_NEGOTIATE_56)
+ DEBUGADD(4, (" NTLMSSP_NEGOTIATE_56\n"));
}
static NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
}
}
-/**
- * Next state function for the wrapped NTLMSSP state machine
- *
- * @param gensec_security GENSEC state, initialised to NTLMSSP
- * @param out_mem_ctx The TALLOC_CTX for *out to be allocated on
- * @param in The request, as a DATA_BLOB
- * @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx
- * @return Error, MORE_PROCESSING_REQUIRED if a reply is sent,
- * or NT_STATUS_OK if the user is authenticated.
- */
-
-static NTSTATUS gensec_ntlmssp_update(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- const DATA_BLOB input, DATA_BLOB *out)
+static NTSTATUS gensec_ntlmssp_update_find(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
+ const DATA_BLOB input, uint32_t *idx)
{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
- NTSTATUS status;
-
+ struct gensec_security *gensec_security = gensec_ntlmssp_state->gensec_security;
uint32_t ntlmssp_command;
- int i;
-
- *out = data_blob(NULL, 0);
+ uint32_t i;
if (gensec_ntlmssp_state->expected_state == NTLMSSP_DONE) {
/* We are strict here because other modules, which we
return NT_STATUS_INVALID_PARAMETER;
}
- if (!out_mem_ctx) {
- /* if the caller doesn't want to manage/own the memory,
- we can put it on our context */
- out_mem_ctx = gensec_ntlmssp_state;
- }
-
if (!input.length) {
switch (gensec_ntlmssp_state->role) {
case NTLMSSP_CLIENT:
}
} else {
if (!msrpc_parse(gensec_ntlmssp_state,
+ lp_iconv_convenience(gensec_security->lp_ctx),
&input, "Cd",
"NTLMSSP",
&ntlmssp_command)) {
}
for (i=0; i < ARRAY_SIZE(ntlmssp_callbacks); i++) {
- if (ntlmssp_callbacks[i].role == gensec_ntlmssp_state->role
- && ntlmssp_callbacks[i].ntlmssp_command == ntlmssp_command) {
- status = ntlmssp_callbacks[i].fn(gensec_security, out_mem_ctx, input, out);
- break;
+ if (ntlmssp_callbacks[i].role == gensec_ntlmssp_state->role &&
+ ntlmssp_callbacks[i].command == ntlmssp_command) {
+ *idx = i;
+ return NT_STATUS_OK;
}
}
- if (i == ARRAY_SIZE(ntlmssp_callbacks)) {
-
- DEBUG(1, ("failed to find NTLMSSP callback for NTLMSSP mode %u, command %u\n",
- gensec_ntlmssp_state->role, ntlmssp_command));
+ DEBUG(1, ("failed to find NTLMSSP callback for NTLMSSP mode %u, command %u\n",
+ gensec_ntlmssp_state->role, ntlmssp_command));
- return NT_STATUS_INVALID_PARAMETER;
- }
+ return NT_STATUS_INVALID_PARAMETER;
+}
+
+/**
+ * Next state function for the wrapped NTLMSSP state machine
+ *
+ * @param gensec_security GENSEC state, initialised to NTLMSSP
+ * @param out_mem_ctx The TALLOC_CTX for *out to be allocated on
+ * @param in The request, as a DATA_BLOB
+ * @param out The reply, as an talloc()ed DATA_BLOB, on *out_mem_ctx
+ * @return Error, MORE_PROCESSING_REQUIRED if a reply is sent,
+ * or NT_STATUS_OK if the user is authenticated.
+ */
+
+static NTSTATUS gensec_ntlmssp_update(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB input, DATA_BLOB *out)
+{
+ struct gensec_ntlmssp_state *gensec_ntlmssp_state = (struct gensec_ntlmssp_state *)gensec_security->private_data;
+ NTSTATUS status;
+ uint32_t i;
+
+ *out = data_blob(NULL, 0);
- if (!NT_STATUS_IS_OK(status)) {
- /* error or more processing required */
- return status;
+ if (!out_mem_ctx) {
+ /* if the caller doesn't want to manage/own the memory,
+ we can put it on our context */
+ out_mem_ctx = gensec_ntlmssp_state;
}
+
+ status = gensec_ntlmssp_update_find(gensec_ntlmssp_state, input, &i);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ status = ntlmssp_callbacks[i].sync_fn(gensec_security, out_mem_ctx, input, out);
+ NT_STATUS_NOT_OK_RETURN(status);
- return status;
+ return NT_STATUS_OK;
}
/**
NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key)
{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
+ struct gensec_ntlmssp_state *gensec_ntlmssp_state = (struct gensec_ntlmssp_state *)gensec_security->private_data;
if (!gensec_ntlmssp_state->session_key.data) {
return NT_STATUS_NO_USER_SESSION_KEY;
}
void ntlmssp_handle_neg_flags(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
- uint32_t neg_flags, BOOL allow_lm)
+ uint32_t neg_flags, bool allow_lm)
{
if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE) {
gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_UNICODE;
gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_OEM;
- gensec_ntlmssp_state->unicode = True;
+ gensec_ntlmssp_state->unicode = true;
} else {
gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_UNICODE;
gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_OEM;
- gensec_ntlmssp_state->unicode = False;
+ gensec_ntlmssp_state->unicode = false;
}
if ((neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) && allow_lm && !gensec_ntlmssp_state->use_ntlmv2) {
gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
}
- if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
+ if (!(neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) {
+ gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
}
if (!(neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
if (!(neg_flags & NTLMSSP_NEGOTIATE_128)) {
gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_128;
- if (neg_flags & NTLMSSP_NEGOTIATE_56) {
- gensec_ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_56;
- }
}
if (!(neg_flags & NTLMSSP_NEGOTIATE_56)) {
gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_KEY_EXCH;
}
+ /* Woop Woop - unknown flag for Windows compatibility...
+ What does this really do ? JRA. */
+ if (!(neg_flags & NTLMSSP_UNKNOWN_02000000)) {
+ gensec_ntlmssp_state->neg_flags &= ~NTLMSSP_UNKNOWN_02000000;
+ }
+
if ((neg_flags & NTLMSSP_REQUEST_TARGET)) {
gensec_ntlmssp_state->neg_flags |= NTLMSSP_REQUEST_TARGET;
}
by the client lanman auth/lanman auth parameters, it isn't too bad.
*/
-void ntlmssp_weaken_keys(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
+DATA_BLOB ntlmssp_weakend_key(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
+ TALLOC_CTX *mem_ctx)
{
+ DATA_BLOB weakened_key = data_blob_talloc(mem_ctx,
+ gensec_ntlmssp_state->session_key.data,
+ gensec_ntlmssp_state->session_key.length);
+ /* Nothing to weaken. We certainly don't want to 'extend' the length... */
+ if (weakened_key.length < 16) {
+ /* perhaps there was no key? */
+ return weakened_key;
+ }
+
/* Key weakening not performed on the master key for NTLM2
and does not occour for NTLM1. Therefore we only need
to do this for the LM_KEY.
*/
-
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
- if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_128) {
-
- } else if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_56) {
- gensec_ntlmssp_state->session_key.data[7] = 0xa0;
+ /* LM key doesn't support 128 bit crypto, so this is
+ * the best we can do. If you negotiate 128 bit, but
+ * not 56, you end up with 40 bit... */
+ if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_56) {
+ weakened_key.data[7] = 0xa0;
+ weakened_key.length = 8;
} else { /* forty bits */
- gensec_ntlmssp_state->session_key.data[5] = 0xe5;
- gensec_ntlmssp_state->session_key.data[6] = 0x38;
- gensec_ntlmssp_state->session_key.data[7] = 0xb0;
+ weakened_key.data[5] = 0xe5;
+ weakened_key.data[6] = 0x38;
+ weakened_key.data[7] = 0xb0;
+ weakened_key.length = 8;
}
- gensec_ntlmssp_state->session_key.length = 8;
}
+ return weakened_key;
}
-static BOOL gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
+static bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
uint32_t feature)
{
- struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
+ struct gensec_ntlmssp_state *gensec_ntlmssp_state = (struct gensec_ntlmssp_state *)gensec_security->private_data;
if (feature & GENSEC_FEATURE_SIGN) {
if (!gensec_ntlmssp_state->session_key.length) {
- return False;
+ return false;
}
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
- return True;
+ return true;
}
}
if (feature & GENSEC_FEATURE_SEAL) {
if (!gensec_ntlmssp_state->session_key.length) {
- return False;
+ return false;
}
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
- return True;
+ return true;
}
}
if (feature & GENSEC_FEATURE_SESSION_KEY) {
if (gensec_ntlmssp_state->session_key.length) {
- return True;
+ return true;
}
}
if (feature & GENSEC_FEATURE_DCE_STYLE) {
- return True;
+ return true;
}
if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- return True;
+ return true;
}
}
- return False;
+ return false;
}
NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
return NT_STATUS_NO_MEMORY;
}
+ gensec_ntlmssp_state->gensec_security = gensec_security;
gensec_ntlmssp_state->auth_context = NULL;
gensec_ntlmssp_state->server_info = NULL;
.session_key = gensec_ntlmssp_session_key,
.session_info = gensec_ntlmssp_session_info,
.have_feature = gensec_ntlmssp_have_feature,
- .enabled = True
+ .enabled = true,
+ .priority = GENSEC_NTLMSSP
};
-NTSTATUS gensec_ntlmssp_init(void)
+_PUBLIC_ NTSTATUS gensec_ntlmssp_init(void)
{
NTSTATUS ret;
+
+ auth_init();
+
ret = gensec_register(&gensec_ntlmssp_security_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' gensec backend!\n",
git.samba.org / ira / wip.git / blobdiff