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📄 Makefile.am(13.57 KB)
📄 Makefile.in(78.52 KB)
📄 check_y2k.c(15.73 KB)
📄 cmd_args.c(4.25 KB)
📄 complete.conf.in(3.35 KB)
📄 declcond.h(793 B)
📄 invoke-ntp.conf.menu(56 B)
📄 invoke-ntp.conf.texi(104.37 KB)
📄 invoke-ntp.keys.menu(56 B)
📄 invoke-ntp.keys.texi(3.21 KB)
📄 invoke-ntpd.menu(49 B)
📄 invoke-ntpd.texi(23.68 KB)
📄 jupiter.h(9.1 KB)
📄 keyword-gen-utd(57 B)
📄 keyword-gen.c(21.99 KB)
📄 ntp.conf.5man(115.01 KB)
📄 ntp.conf.5mdoc(101.72 KB)
📄 ntp.conf.def(100.75 KB)
📄 ntp.conf.html(126.28 KB)
📄 ntp.conf.man.in(115.01 KB)
📄 ntp.conf.mdoc.in(101.71 KB)
📄 ntp.conf.texi(1.19 KB)
📄 ntp.keys.5man(3.99 KB)
📄 ntp.keys.5mdoc(4.25 KB)
📄 ntp.keys.def(3.65 KB)
📄 ntp.keys.html(8.37 KB)
📄 ntp.keys.man.in(3.99 KB)
📄 ntp.keys.mdoc.in(4.24 KB)
📄 ntp.keys.texi(1.2 KB)
📄 ntp_config.c(117.55 KB)
📄 ntp_control.c(123.14 KB)
📄 ntp_crypto.c(117.09 KB)
📄 ntp_filegen.c(13.42 KB)
📄 ntp_io.c(112.21 KB)
📄 ntp_keyword.h(73.49 KB)
📄 ntp_leapsec.c(31.18 KB)
📄 ntp_leapsec.h(10.95 KB)
📄 ntp_loopfilter.c(40.05 KB)
📄 ntp_monitor.c(13.43 KB)
📄 ntp_parser.c(130.65 KB)
📄 ntp_parser.h(11.36 KB)
📄 ntp_peer.c(27.66 KB)
📄 ntp_prio_q.c(4.54 KB)
📄 ntp_proto.c(150.76 KB)
📄 ntp_refclock.c(43.87 KB)
📄 ntp_request.c(67.25 KB)
📄 ntp_restrict.c(19.06 KB)
📄 ntp_scanner.c(20.74 KB)
📄 ntp_scanner.h(4.43 KB)
📄 ntp_signd.c(5.24 KB)
📄 ntp_timer.c(17.69 KB)
📄 ntp_util.c(22.66 KB)
📄 ntpd-opts.c(71.91 KB)
📄 ntpd-opts.def(17.55 KB)
📄 ntpd-opts.h(14.57 KB)
📄 ntpd.1ntpdman(32.03 KB)
📄 ntpd.1ntpdmdoc(29.07 KB)
📄 ntpd.c(42.16 KB)
📄 ntpd.html(49.68 KB)
📄 ntpd.man.in(32.03 KB)
📄 ntpd.mdoc.in(29.07 KB)
📄 ntpd.texi(3.25 KB)
📄 ntpdbase-opts.def(13.21 KB)
📄 ntpsim.c(17.11 KB)
📄 ppsapi_timepps.h(497 B)
📄 psl0.conf(25 B)
📄 psl1.conf(25 B)
📄 psl2.conf(37 B)
📄 rc_cmdlength.c(800 B)
📄 refclock_acts.c(22.66 KB)
📄 refclock_arbiter.c(12.15 KB)
📄 refclock_arc.c(46.85 KB)
📄 refclock_as2201.c(11.09 KB)
📄 refclock_atom.c(6.63 KB)
📄 refclock_bancomm.c(16.11 KB)
📄 refclock_chronolog.c(7.61 KB)
📄 refclock_chu.c(45.28 KB)
📄 refclock_conf.c(7.25 KB)
📄 refclock_datum.c(22.3 KB)
📄 refclock_dumbclock.c(8.42 KB)
📄 refclock_fg.c(6.89 KB)
📄 refclock_gpsdjson.c(58 KB)
📄 refclock_gpsvme.c(7.77 KB)
📄 refclock_heath.c(12.97 KB)
📄 refclock_hopfpci.c(5.69 KB)
📄 refclock_hopfser.c(7.41 KB)
📄 refclock_hpgps.c(16.38 KB)
📄 refclock_irig.c(30.05 KB)
📄 refclock_jjy.c(144.27 KB)
📄 refclock_jupiter.c(25.66 KB)
📄 refclock_leitch.c(13.27 KB)
📄 refclock_local.c(5.72 KB)
📄 refclock_msfees.c(44.66 KB)
📄 refclock_mx4200.c(41.72 KB)
📄 refclock_neoclock4x.c(29.08 KB)
📄 refclock_nmea.c(50.6 KB)
📄 refclock_oncore.c(121.54 KB)
📄 refclock_palisade.c(35.15 KB)
📄 refclock_palisade.h(6.52 KB)
📄 refclock_parse.c(160.87 KB)
📄 refclock_pcf.c(4.79 KB)
📄 refclock_pst.c(8.09 KB)
📄 refclock_ripencc.c(118.21 KB)
📄 refclock_shm.c(16.96 KB)
📄 refclock_tpro.c(4.69 KB)
📄 refclock_true.c(25.3 KB)
📄 refclock_tsyncpci.c(28.35 KB)
📄 refclock_tt560.c(6.12 KB)
📄 refclock_ulink.c(15.64 KB)
📄 refclock_wwv.c(79.32 KB)
📄 refclock_wwvb.c(15.71 KB)
📄 refclock_zyfer.c(7.38 KB)

Editing: ntp_signd.c

/* Copyright 2008, Red Hat, Inc.
   Copyright 2008, Andrew Tridgell.
   Licenced under the same terms as NTP itself. 
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef HAVE_NTP_SIGND

#include "ntpd.h"
#include "ntp_io.h"
#include "ntp_stdlib.h"
#include "ntp_unixtime.h"
#include "ntp_control.h"
#include "ntp_string.h"

#include <stdio.h>
#include <stddef.h>
#ifdef HAVE_LIBSCF_H
#include <libscf.h>
#include <unistd.h>
#endif /* HAVE_LIBSCF_H */

#include <sys/un.h>

/* socket routines by tridge - from junkcode.samba.org */

/*
  connect to a unix domain socket
*/
static int 
ux_socket_connect(const char *name)
{
	int fd;
	struct sockaddr_un addr;
	if (!name) {
		return -1;
	}

ZERO(addr);
	addr.sun_family = AF_UNIX;
	strlcpy(addr.sun_path, name, sizeof(addr.sun_path));

fd = socket(AF_UNIX, SOCK_STREAM, 0);
	if (fd == -1) {
		return -1;
	}
	
	if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
		close(fd);
		return -1;
	}

return fd;
}

/*
  keep writing until its all sent
*/
static int 
write_all(int fd, const void *buf, size_t len)
{
	size_t total = 0;
	while (len) {
		int n = write(fd, buf, len);
		if (n <= 0) return total;
		buf = n + (const char *)buf;
		len -= n;
		total += n;
	}
	return total;
}

/*
  keep reading until its all read
*/
static int 
read_all(int fd, void *buf, size_t len)
{
	size_t total = 0;
	while (len) {
		int n = read(fd, buf, len);
		if (n <= 0) return total;
		buf = n + (char *)buf;
		len -= n;
		total += n;
	}
	return total;
}

/*
  send a packet in length prefix format
*/
static int 
send_packet(int fd, const char *buf, uint32_t len)
{
	uint32_t net_len = htonl(len);
	if (write_all(fd, &net_len, sizeof(net_len)) != sizeof(net_len)) return -1;
	if (write_all(fd, buf, len) != len) return -1;	
	return 0;
}

/*
  receive a packet in length prefix format
*/
static int 
recv_packet(int fd, char **buf, uint32_t *len)
{
	if (read_all(fd, len, sizeof(*len)) != sizeof(*len)) return -1;
	*len = ntohl(*len);
	*buf = emalloc(*len);
	if (read_all(fd, *buf, *len) != *len) {
		free(*buf);
		*buf = NULL;
		return -1;
	}
	return 0;
}

void 
send_via_ntp_signd(
	struct recvbuf *rbufp,	/* receive packet pointer */
	int	xmode,
	keyid_t	xkeyid, 
	int flags,
	struct pkt  *xpkt
	)
{
	
	/* We are here because it was detected that the client
	 * sent an all-zero signature, and we therefore know
	 * it's windows trying to talk to an AD server
	 *
	 * Because we don't want to dive into Samba's secrets
	 * database just to find the long-term kerberos key
	 * that is re-used as the NTP key, we instead hand the
	 * packet over to Samba to sign, and return to us.
	 *
	 * The signing method Samba will use is described by
	 * Microsoft in MS-SNTP, found here:
	 * http://msdn.microsoft.com/en-us/library/cc212930.aspx
	 */
	
	int fd, sendlen;
	struct samba_key_in {
		uint32_t version;
		uint32_t op;
		uint32_t packet_id;
		uint32_t key_id_le;
		struct pkt pkt;
	} samba_pkt;
	
	struct samba_key_out {
		uint32_t version;
		uint32_t op;
		uint32_t packet_id;
		struct pkt pkt;
	} samba_reply;
	
	char full_socket[256];

char *reply = NULL;
	uint32_t reply_len;
	
	ZERO(samba_pkt);
	samba_pkt.op = 0; /* Sign message */
	/* This will be echoed into the reply - a different
	 * impelementation might want multiple packets
	 * awaiting signing */

samba_pkt.packet_id = 1;

/* Swap the byte order back - it's actually little
	 * endian on the wire, but it was read above as
	 * network byte order */
	samba_pkt.key_id_le = htonl(xkeyid);
	samba_pkt.pkt = *xpkt;

snprintf(full_socket, sizeof(full_socket), "%s/socket", ntp_signd_socket);

fd = ux_socket_connect(full_socket);
	/* Only continue with this if we can talk to Samba */
	if (fd != -1) {
		/* Send old packet to Samba, expect response */
		/* Packet to Samba is quite simple: 
		   All values BIG endian except key ID as noted
		   [packet size as BE] - 4 bytes
		   [protocol version (0)] - 4 bytes
		   [packet ID] - 4 bytes
		   [operation (sign message=0)] - 4 bytes
		   [key id] - LITTLE endian (as on wire) - 4 bytes
		   [message to sign] - as marshalled, without signature
		*/
			
		if (send_packet(fd, (char *)&samba_pkt, offsetof(struct samba_key_in, pkt) + LEN_PKT_NOMAC) != 0) {
			/* Huh?  could not talk to Samba... */
			close(fd);
			return;
		}
			
		if (recv_packet(fd, &reply, &reply_len) != 0) {
			if (reply) {
				free(reply);
			}
			close(fd);
			return;
		}
		/* Return packet is also simple: 
		   [packet size] - network byte order - 4 bytes
		   [protocol version (0)] network byte order - - 4 bytes
		   [operation (signed success=3, failure=4)] network byte order - - 4 byte
		   (optional) [signed message] - as provided before, with signature appended
		*/
			
		if (reply_len <= sizeof(samba_reply)) {
			memcpy(&samba_reply, reply, reply_len);
			if (ntohl(samba_reply.op) == 3 && reply_len >  offsetof(struct samba_key_out, pkt)) {
				sendlen = reply_len - offsetof(struct samba_key_out, pkt);
				xpkt = &samba_reply.pkt;
				sendpkt(&rbufp->recv_srcadr, rbufp->dstadr, 0, xpkt, sendlen);
#ifdef DEBUG
				if (debug)
					printf(
						"transmit ntp_signd packet: at %ld %s->%s mode %d keyid %08x len %d\n",
						current_time, ntoa(&rbufp->dstadr->sin),
						ntoa(&rbufp->recv_srcadr), xmode, xkeyid, sendlen);
#endif
			}
		}
		
		if (reply) {
			free(reply);
		}
		close(fd);
		
	}
}
#endif

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Editing: ntp_signd.c

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