mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-14 06:12:01 +01:00
169 lines
3.6 KiB
Plaintext
169 lines
3.6 KiB
Plaintext
/* -*- Mode: Text -*- */
|
|
|
|
autogen definitions options;
|
|
|
|
#include copyright.def
|
|
#include version.def
|
|
|
|
// We want the synopsis to be "/etc/ntp.keys" but we need the prog-name
|
|
// to be ntp.keys - the latter is also how autogen produces the output
|
|
// file name.
|
|
prog-name = "ntp.keys";
|
|
file-path = "/etc/ntp.keys";
|
|
prog-title = "NTP symmetric key file format";
|
|
|
|
/* explain: Additional information whenever the usage routine is invoked */
|
|
explain = <<- _END_EXPLAIN
|
|
_END_EXPLAIN;
|
|
|
|
doc-section = {
|
|
ds-type = 'DESCRIPTION';
|
|
ds-format = 'mdoc';
|
|
ds-text = <<- _END_PROG_MDOC_DESCRIP
|
|
This document describes the format of an NTP symmetric key file.
|
|
For a description of the use of this type of file, see the
|
|
.Qq Authentication Support
|
|
section of the
|
|
.Xr ntp.conf 5
|
|
page.
|
|
.Pp
|
|
.Xr ntpd 8
|
|
reads its keys from a file specified using the
|
|
.Fl k
|
|
command line option or the
|
|
.Ic keys
|
|
statement in the configuration file.
|
|
While key number 0 is fixed by the NTP standard
|
|
(as 56 zero bits)
|
|
and may not be changed,
|
|
one or more keys numbered between 1 and 65535
|
|
may be arbitrarily set in the keys file.
|
|
.Pp
|
|
The key file uses the same comment conventions
|
|
as the configuration file.
|
|
Key entries use a fixed format of the form
|
|
.Pp
|
|
.D1 Ar keyno type key opt_IP_list
|
|
.Pp
|
|
where
|
|
.Ar keyno
|
|
is a positive integer (between 1 and 65535),
|
|
.Ar type
|
|
is the message digest algorithm,
|
|
.Ar key
|
|
is the key itself, and
|
|
.Ar opt_IP_list
|
|
is an optional comma-separated list of IPs
|
|
where the
|
|
.Ar keyno
|
|
should be trusted.
|
|
that are allowed to serve time.
|
|
Each IP in
|
|
.Ar opt_IP_list
|
|
may contain an optional
|
|
.Cm /subnetbits
|
|
specification which identifies the number of bits for
|
|
the desired subnet of trust.
|
|
If
|
|
.Ar opt_IP_list
|
|
is empty,
|
|
any properly-authenticated message will be
|
|
accepted.
|
|
.Pp
|
|
The
|
|
.Ar key
|
|
may be given in a format
|
|
controlled by the
|
|
.Ar type
|
|
field.
|
|
The
|
|
.Ar type
|
|
.Li MD5
|
|
is always supported.
|
|
If
|
|
.Li ntpd
|
|
was built with the OpenSSL library
|
|
then any digest library supported by that library may be specified.
|
|
However, if compliance with FIPS 140-2 is required the
|
|
.Ar type
|
|
must be either
|
|
.Li SHA
|
|
or
|
|
.Li SHA1 .
|
|
.Pp
|
|
What follows are some key types, and corresponding formats:
|
|
.Pp
|
|
.Bl -tag -width RMD160 -compact
|
|
.It Li MD5
|
|
The key is 1 to 16 printable characters terminated by
|
|
an EOL,
|
|
whitespace,
|
|
or
|
|
a
|
|
.Li #
|
|
(which is the "start of comment" character).
|
|
.Pp
|
|
.It Li SHA
|
|
.It Li SHA1
|
|
.It Li RMD160
|
|
The key is a hex-encoded ASCII string of 40 characters,
|
|
which is truncated as necessary.
|
|
.El
|
|
.Pp
|
|
Note that the keys used by the
|
|
.Xr ntpq 8
|
|
and
|
|
.Xr ntpdc 8
|
|
programs are checked against passwords
|
|
requested by the programs and entered by hand,
|
|
so it is generally appropriate to specify these keys in ASCII format.
|
|
_END_PROG_MDOC_DESCRIP;
|
|
};
|
|
|
|
doc-section = {
|
|
ds-type = 'FILES';
|
|
ds-format = 'mdoc';
|
|
ds-text = <<- _END_MDOC_FILES
|
|
.Bl -tag -width /etc/ntp.keys -compact
|
|
.It Pa /etc/ntp.keys
|
|
the default name of the configuration file
|
|
.El
|
|
_END_MDOC_FILES;
|
|
};
|
|
|
|
doc-section = {
|
|
ds-type = 'SEE ALSO';
|
|
ds-format = 'mdoc';
|
|
ds-text = <<- _END_MDOC_SEE_ALSO
|
|
.Xr ntp.conf 5 ,
|
|
.Xr ntpd 1ntpdmdoc ,
|
|
.Xr ntpdate 1ntpdatemdoc ,
|
|
.Xr ntpdc 1ntpdcmdoc ,
|
|
.Xr sntp 1sntpmdoc
|
|
_END_MDOC_SEE_ALSO;
|
|
};
|
|
|
|
/*
|
|
doc-section = {
|
|
ds-type = 'BUGS';
|
|
ds-format = 'mdoc';
|
|
ds-text = <<- _END_MDOC_BUGS
|
|
.Xr ntpd 8
|
|
has gotten rather fat.
|
|
While not huge, it has gotten larger than might
|
|
be desirable for an elevated-priority daemon running on a workstation,
|
|
particularly since many of the fancy features which consume the space
|
|
were designed more with a busy primary server, rather than a high
|
|
stratum workstation, in mind.
|
|
_END_MDOC_BUGS;
|
|
};
|
|
*/
|
|
|
|
doc-section = {
|
|
ds-type = 'NOTES';
|
|
ds-format = 'mdoc';
|
|
ds-text = <<- _END_MDOC_NOTES
|
|
This document was derived from FreeBSD.
|
|
_END_MDOC_NOTES;
|
|
};
|