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-rw-r--r--source4/librpc/rpc/dcerpc.c59
-rw-r--r--source4/librpc/rpc/dcerpc.h7
-rw-r--r--source4/librpc/rpc/dcerpc_auth.c21
3 files changed, 72 insertions, 15 deletions
diff --git a/source4/librpc/rpc/dcerpc.c b/source4/librpc/rpc/dcerpc.c
index df9c1face4..3868bfdf45 100644
--- a/source4/librpc/rpc/dcerpc.c
+++ b/source4/librpc/rpc/dcerpc.c
@@ -135,11 +135,30 @@ static NTSTATUS dcerpc_pull_request_sign(struct dcerpc_pipe *p,
return status;
}
- /* check the signature */
- status = ntlmssp_check_packet(p->ntlmssp_state,
- pkt->u.response.stub_and_verifier.data,
- pkt->u.response.stub_and_verifier.length,
- &auth.credentials);
+
+ /* check signature or unseal the packet */
+ switch (p->auth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = ntlmssp_unseal_packet(p->ntlmssp_state,
+ pkt->u.response.stub_and_verifier.data,
+ pkt->u.response.stub_and_verifier.length,
+ &auth.credentials);
+ break;
+
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = ntlmssp_check_packet(p->ntlmssp_state,
+ pkt->u.response.stub_and_verifier.data,
+ pkt->u.response.stub_and_verifier.length,
+ &auth.credentials);
+ break;
+
+ case DCERPC_AUTH_LEVEL_NONE:
+ break;
+
+ default:
+ status = NT_STATUS_INVALID_LEVEL;
+ break;
+ }
/* remove the indicated amount of paddiing */
if (pkt->u.response.stub_and_verifier.length < auth.auth_pad_length) {
@@ -221,11 +240,31 @@ static NTSTATUS dcerpc_push_request_sign(struct dcerpc_pipe *p,
p->auth_info->auth_pad_length = NDR_ALIGN(ndr, 8);
ndr_push_zero(ndr, p->auth_info->auth_pad_length);
- /* sign the packet */
- status = ntlmssp_sign_packet(p->ntlmssp_state,
- ndr->data + DCERPC_REQUEST_LENGTH,
- ndr->offset - DCERPC_REQUEST_LENGTH,
- &p->auth_info->credentials);
+ /* sign or seal the packet */
+ switch (p->auth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ status = ntlmssp_seal_packet(p->ntlmssp_state,
+ ndr->data + DCERPC_REQUEST_LENGTH,
+ ndr->offset - DCERPC_REQUEST_LENGTH,
+ &p->auth_info->credentials);
+ break;
+
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ status = ntlmssp_sign_packet(p->ntlmssp_state,
+ ndr->data + DCERPC_REQUEST_LENGTH,
+ ndr->offset - DCERPC_REQUEST_LENGTH,
+ &p->auth_info->credentials);
+ break;
+
+ case DCERPC_AUTH_LEVEL_NONE:
+ p->auth_info->credentials = data_blob(NULL, 0);
+ break;
+
+ default:
+ status = NT_STATUS_INVALID_LEVEL;
+ break;
+ }
+
if (!NT_STATUS_IS_OK(status)) {
return status;
}
diff --git a/source4/librpc/rpc/dcerpc.h b/source4/librpc/rpc/dcerpc.h
index e41b998d90..906f613593 100644
--- a/source4/librpc/rpc/dcerpc.h
+++ b/source4/librpc/rpc/dcerpc.h
@@ -51,14 +51,17 @@ struct dcerpc_pipe {
};
/* dcerpc pipe flags */
-#define DCERPC_DEBUG_PRINT_IN 1
-#define DCERPC_DEBUG_PRINT_OUT 2
+#define DCERPC_DEBUG_PRINT_IN (1<<0)
+#define DCERPC_DEBUG_PRINT_OUT (1<<1)
#define DCERPC_DEBUG_PRINT_BOTH (DCERPC_DEBUG_PRINT_IN | DCERPC_DEBUG_PRINT_OUT)
#define DCERPC_DEBUG_VALIDATE_IN 4
#define DCERPC_DEBUG_VALIDATE_OUT 8
#define DCERPC_DEBUG_VALIDATE_BOTH (DCERPC_DEBUG_VALIDATE_IN | DCERPC_DEBUG_VALIDATE_OUT)
+#define DCERPC_SIGN 16
+#define DCERPC_SEAL 32
+
/*
this is used to find pointers to calls
*/
diff --git a/source4/librpc/rpc/dcerpc_auth.c b/source4/librpc/rpc/dcerpc_auth.c
index 103a3c70d8..5850ec6979 100644
--- a/source4/librpc/rpc/dcerpc_auth.c
+++ b/source4/librpc/rpc/dcerpc_auth.c
@@ -68,7 +68,17 @@ NTSTATUS dcerpc_bind_auth_ntlm(struct dcerpc_pipe *p,
}
p->auth_info->auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
- p->auth_info->auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
+
+ if (p->flags & DCERPC_SEAL) {
+ p->auth_info->auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
+ state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN | NTLMSSP_NEGOTIATE_SEAL;
+ } else if (p->flags & DCERPC_SIGN) {
+ state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
+ p->auth_info->auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
+ } else {
+ state->neg_flags &= ~(NTLMSSP_NEGOTIATE_SIGN | NTLMSSP_NEGOTIATE_SEAL);
+ p->auth_info->auth_level = DCERPC_AUTH_LEVEL_NONE;
+ }
p->auth_info->auth_pad_length = 0;
p->auth_info->auth_reserved = 0;
p->auth_info->auth_context_id = random();
@@ -113,8 +123,13 @@ NTSTATUS dcerpc_bind_auth_ntlm(struct dcerpc_pipe *p,
p->ntlmssp_state = state;
- /* setup for signing */
- status = ntlmssp_sign_init(state);
+ switch (p->auth_info->auth_level) {
+ case DCERPC_AUTH_LEVEL_PRIVACY:
+ case DCERPC_AUTH_LEVEL_INTEGRITY:
+ /* setup for signing */
+ status = ntlmssp_sign_init(state);
+ break;
+ }
done:
talloc_destroy(mem_ctx);