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Add support for different authentication hashes

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Allow different hash functions to be used in the NTP and cmdmon
protocols. This breaks the cmdmon protocol compatibility. Extended key
file format is used to specify the hash functions for chronyd and new
authhash command is added to chronyc. MD5 is the default and the only
function included in the chrony source code, other functions will be
available from libraries.
This commit is contained in:
Miroslav Lichvar
2011-10-19 13:26:03 +02:00
parent 6015f99d98
commit 777303f130
20 changed files with 473 additions and 329 deletions
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27
ntp_sources.c
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@@ -346,9 +346,10 @@ NSR_RemoveSource(NTP_Remote_Address *remote_addr)
/* ================================================== */
/* This routine is called by ntp_io when a new packet arrives off the network.*/
/* This routine is called by ntp_io when a new packet arrives off the network,
possibly with an authentication tail */
void
NSR_ProcessReceive(NTP_Packet *message, struct timeval *now, double now_err, NTP_Remote_Address *remote_addr)
NSR_ProcessReceive(NTP_Packet *message, struct timeval *now, double now_err, NTP_Remote_Address *remote_addr, int length)
{
int slot, found;
@@ -362,27 +363,9 @@ NSR_ProcessReceive(NTP_Packet *message, struct timeval *now, double now_err, NTP
find_slot(remote_addr, &slot, &found);
if (found == 2) { /* Must match IP address AND port number */
NCR_ProcessKnown(message, now, now_err, records[slot].data, 0);
NCR_ProcessKnown(message, now, now_err, records[slot].data, length);
} else {
NCR_ProcessUnknown(message, now, now_err, remote_addr, 0);
}
}
/* ================================================== */
/* This routine is called by ntp_io when a new packet with an authentication tail arrives off the network */
void
NSR_ProcessAuthenticatedReceive(NTP_Packet *message, struct timeval *now, double now_err, NTP_Remote_Address *remote_addr)
{
int slot, found;
assert(initialised);
find_slot(remote_addr, &slot, &found);
if (found == 2) {
NCR_ProcessKnown(message, now, now_err, records[slot].data, 1);
} else {
NCR_ProcessUnknown(message, now, now_err, remote_addr, 1);
NCR_ProcessUnknown(message, now, now_err, remote_addr, length);
}
}