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ntp: update packet processing to NTPv4 (RFC 5905)

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This commit is contained in:
Miroslav Lichvar
2014-10-13 13:26:23 +02:00
parent 740e8130dd
commit 8fbfe55e92
8 changed files with 435 additions and 529 deletions
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7
broadcast.c
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@@ -68,7 +68,6 @@ timeout_handler(void *arbitrary)
Destination *d = (Destination *) arbitrary;
NTP_Packet message;
/* Parameters read from reference module */
int version;
int leap;
int are_we_synchronised, our_stratum;
NTP_Leap leap_status;
@@ -77,8 +76,6 @@ timeout_handler(void *arbitrary)
double our_root_delay, our_root_dispersion;
struct timeval local_transmit;
version = 3;
LCL_ReadCookedTime(&local_transmit, NULL);
REF_GetReferenceParams(&local_transmit,
&are_we_synchronised, &leap_status,
@@ -93,7 +90,7 @@ timeout_handler(void *arbitrary)
leap = LEAP_Unsynchronised;
}
message.lvm = ((leap << 6) &0xc0) | ((version << 3) & 0x38) | (MODE_BROADCAST & 0x07);
message.lvm = NTP_LVM(leap, NTP_VERSION, MODE_BROADCAST);
message.stratum = our_stratum;
message.poll = 6; /* FIXME: what should this be? */
message.precision = LCL_GetSysPrecisionAsLog();
@@ -115,7 +112,7 @@ timeout_handler(void *arbitrary)
ts_fuzz = UTI_GetNTPTsFuzz(message.precision);
LCL_ReadCookedTime(&local_transmit, NULL);
UTI_TimevalToInt64(&local_transmit, &message.transmit_ts, ts_fuzz);
NIO_SendNormalPacket(&message, &d->addr, &d->local_addr);
NIO_SendPacket(&message, &d->addr, &d->local_addr, NTP_NORMAL_PACKET_LENGTH);
/* Requeue timeout. Don't care if interval drifts gradually, so just do it
* at the end. */