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ntp: merge broadcast code with ntp_core

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This commit is contained in:
Miroslav Lichvar
2014-10-15 12:25:56 +02:00
parent e0059bcc6b
commit a78bf0c34e
8 changed files with 61 additions and 217 deletions
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56
ntp_core.c
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@@ -29,6 +29,7 @@
#include "sysincl.h"
#include "array.h"
#include "ntp_core.h"
#include "ntp_io.h"
#include "memory.h"
@@ -166,6 +167,15 @@ struct NCR_Instance_Record {
};
typedef struct {
NTP_Remote_Address addr;
NTP_Local_Address local_addr;
int interval;
} BroadcastDestination;
/* Array of BroadcastDestination */
static ARR_Instance broadcasts;
/* ================================================== */
/* Initial delay period before first packet is transmitted (in seconds) */
#define INITIAL_DELAY 0.2
@@ -301,6 +311,7 @@ NCR_Initialise(void)
: -1;
access_auth_table = ADF_CreateTable();
broadcasts = ARR_CreateInstance(sizeof (BroadcastDestination));
}
/* ================================================== */
@@ -308,8 +319,8 @@ NCR_Initialise(void)
void
NCR_Finalise(void)
{
ARR_DestroyInstance(broadcasts);
ADF_DestroyTable(access_auth_table);
}
/* ================================================== */
@@ -1847,3 +1858,46 @@ int NCR_IsSyncPeer(NCR_Instance inst)
}
/* ================================================== */
static void
broadcast_timeout(void *arg)
{
BroadcastDestination *destination;
NTP_int64 orig_ts;
struct timeval recv_ts;
destination = ARR_GetElement(broadcasts, (long)arg);
orig_ts.hi = 0;
orig_ts.lo = 0;
recv_ts.tv_sec = 0;
recv_ts.tv_usec = 0;
transmit_packet(MODE_BROADCAST, 6 /* FIXME: should this be log2(interval)? */,
NTP_VERSION, 0, 0, &orig_ts, &recv_ts, NULL, NULL,
&destination->addr, &destination->local_addr);
/* Requeue timeout. We don't care if interval drifts gradually. */
SCH_AddTimeoutInClass(destination->interval, SAMPLING_SEPARATION, SAMPLING_RANDOMNESS,
SCH_NtpBroadcastClass, broadcast_timeout, arg);
}
/* ================================================== */
void
NCR_AddBroadcastDestination(IPAddr *addr, unsigned short port, int interval)
{
BroadcastDestination *destination;
destination = (BroadcastDestination *)ARR_GetNewElement(broadcasts);
destination->addr.ip_addr = *addr;
destination->addr.port = port;
destination->local_addr.ip_addr.family = IPADDR_UNSPEC;
destination->local_addr.sock_fd = NIO_GetServerSocket(&destination->addr);
destination->interval = interval;
SCH_AddTimeoutInClass(destination->interval, SAMPLING_SEPARATION, SAMPLING_RANDOMNESS,
SCH_NtpBroadcastClass, broadcast_timeout,
(void *)(long)(ARR_GetSize(broadcasts) - 1));
}