+
+NTSTATUS smb2cli_session_set_channel_key(struct smbXcli_session *session,
+ const DATA_BLOB _channel_key,
+ const struct iovec *recv_iov)
+{
+ struct smbXcli_conn *conn = session->conn;
+ uint8_t channel_key[16];
+ NTSTATUS status;
+
+ if (conn == NULL) {
+ return NT_STATUS_INVALID_PARAMETER_MIX;
+ }
+
+ if (session->smb2.channel_signing_key.length != 0) {
+ return NT_STATUS_INVALID_PARAMETER_MIX;
+ }
+
+ ZERO_STRUCT(channel_key);
+ memcpy(channel_key, _channel_key.data,
+ MIN(_channel_key.length, sizeof(channel_key)));
+
+ session->smb2.channel_signing_key = data_blob_talloc(session,
+ channel_key,
+ sizeof(channel_key));
+ ZERO_STRUCT(channel_key);
+ if (session->smb2.channel_signing_key.data == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = smb2_signing_check_pdu(session->smb2.channel_signing_key,
+ recv_iov, 3);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ return NT_STATUS_OK;
+}