diff options
Diffstat (limited to 'ntp_io.h')
-rw-r--r-- | ntp_io.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/ntp_io.h b/ntp_io.h new file mode 100644 index 0000000..30f4992 --- /dev/null +++ b/ntp_io.h @@ -0,0 +1,73 @@ +/* + 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 */ |