1 files changed, 73 insertions, 0 deletions
diff --git a/ntp_io.h b/ntp_io.h
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--- /dev/null
+++ b/ntp_io.h
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+/*
+  chronyd/chronyc - Programs for keeping computer clocks accurate.
+
+ **********************************************************************
+ * Copyright (C) Richard P. Curnow  1997-2002
+ * Copyright (C) Miroslav Lichvar  2014
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ * 
+ **********************************************************************
+
+  =======================================================================
+
+  This is the header file for the NTP socket I/O bits.
+
+  */
+
+#ifndef GOT_NTP_IO_H
+#define GOT_NTP_IO_H
+
+#include "ntp.h"
+#include "addressing.h"
+#include "socket.h"
+
+/* Function to initialise the module. */
+extern void NIO_Initialise(void);
+
+/* Function to finalise the module */
+extern void NIO_Finalise(void);
+
+/* Function to check if HW timestamping is enabled on any interface */
+extern int NIO_IsHwTsEnabled(void);
+
+/* Function to obtain a socket for sending client packets */
+extern int NIO_OpenClientSocket(NTP_Remote_Address *remote_addr);
+
+/* Function to obtain a socket for sending server/peer packets */
+extern int NIO_OpenServerSocket(NTP_Remote_Address *remote_addr);
+
+/* Function to close a socket returned by NIO_OpenClientSocket() */
+extern void NIO_CloseClientSocket(int sock_fd);
+
+/* Function to close a socket returned by NIO_OpenServerSocket() */
+extern void NIO_CloseServerSocket(int sock_fd);
+
+/* Function to check if socket is a server socket */
+extern int NIO_IsServerSocket(int sock_fd);
+
+/* Function to check if a server socket is currently open */
+extern int NIO_IsServerSocketOpen(void);
+
+/* Function to check if client packets can be sent to a server */
+extern int NIO_IsServerConnectable(NTP_Remote_Address *remote_addr);
+
+/* Function to unwrap an NTP message from non-native transport (e.g. PTP) */
+extern int NIO_UnwrapMessage(SCK_Message *message, int sock_fd, double *net_correction);
+
+/* Function to transmit a packet */
+extern int NIO_SendPacket(NTP_Packet *packet, NTP_Remote_Address *remote_addr,
+                          NTP_Local_Address *local_addr, int length, int process_tx);
+
+#endif /* GOT_NTP_IO_H */