Whistle's Netgraph link-layer (sometimes more) networking infrastructure.

Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from:  Whistle CVS tree

1 files changed, 586 insertions, 0 deletions

diff --git a/sys/netgraph/ng_async.c b/sys/netgraph/ng_async.c
new file mode 100644
index 0000000..5dae651
--- /dev/null
+++ b/sys/netgraph/ng_async.c
@@ -0,0 +1,586 @@
+
+/*
+ * ng_async.c
+ *
+ * Copyright (c) 1996-1999 Whistle Communications, Inc.
+ * All rights reserved.
+ * 
+ * Subject to the following obligations and disclaimer of warranty, use and
+ * redistribution of this software, in source or object code forms, with or
+ * without modifications are expressly permitted by Whistle Communications;
+ * provided, however, that:
+ * 1. Any and all reproductions of the source or object code must include the
+ *    copyright notice above and the following disclaimer of warranties; and
+ * 2. No rights are granted, in any manner or form, to use Whistle
+ *    Communications, Inc. trademarks, including the mark "WHISTLE
+ *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
+ *    such appears in the above copyright notice or in the software.
+ * 
+ * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
+ * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
+ * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+ * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
+ * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
+ * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
+ * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
+ * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
+ * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Archie Cobbs <archie@whistle.com>
+ *
+ * $FreeBSD$
+ * $Whistle: ng_async.c,v 1.15 1999/01/28 23:54:52 julian Exp $
+ */
+
+/*
+ * This node type implements a PPP style sync <-> async converter.
+ * See RFC 1661 for details of how asynchronous encoding works.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/conf.h>
+#include <sys/proc.h>
+#include <sys/mbuf.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+#include <sys/file.h>
+#include <sys/tty.h>
+#include <sys/syslog.h>
+#include <sys/errno.h>
+
+#include <netgraph/ng_message.h>
+#include <netgraph/netgraph.h>
+#include <netgraph/ng_async.h>
+
+#include <net/ppp_defs.h>
+
+/* Optimize opening and closing flags into one? Set to max # seconds delay */
+#define SYNC_OPT_TIME	1	/* one second maximum */
+
+/* Async decode state */
+#define MODE_HUNT	0
+#define MODE_NORMAL	1
+#define MODE_ESC	2
+
+/* Private data structure */
+struct private {
+	node_p  	node;		/* Our node */
+	hook_p  	async;		/* Asynchronous side */
+	hook_p  	sync;		/* Synchronous side */
+	hook_p  	sync2;		/* Synchronous side, full escapes */
+	u_char  	amode;		/* Async hunt/esape mode */
+	u_int16_t	fcs;		/* Decoded async FCS (so far) */
+	u_char	       *abuf;		/* Buffer to encode sync into */
+	u_char	       *sbuf;		/* Buffer to decode async into */
+	u_int		slen;		/* Length of data in sbuf */
+#if SYNC_OPT_TIME
+	long		lasttime;	/* Time of last async packet sent */
+#endif
+	struct		ng_async_cfg	cfg;	/* Configuration */
+	struct		ng_async_stat	stats;	/* Statistics */
+};
+typedef struct private *sc_p;
+
+/* Useful macros */
+#define ASYNC_BUF_SIZE(smru)	(2 * (smru) + 10)
+#define SYNC_BUF_SIZE(amru)	((amru) + 10)
+#define ERROUT(x)		do { error = (x); goto done; } while (0)
+
+/* Netgraph methods */
+static int	nga_constructor(node_p *node);
+static int	nga_rcvdata(hook_p hook, struct mbuf *m, meta_p meta);
+static int	nga_rcvmsg(node_p node, struct ng_mesg *msg,
+		    const char *rtn, struct ng_mesg **resp);
+static int	nga_shutdown(node_p node);
+static int	nga_newhook(node_p node, hook_p hook, const char *name);
+static int	nga_disconnect(hook_p hook);
+
+/* Helper stuff */
+static int	nga_rcv_sync(const sc_p sc, struct mbuf *m, meta_p meta);
+static int	nga_rcv_async(const sc_p sc, struct mbuf *m, meta_p meta);
+
+/* Define the netgraph node type */
+static struct ng_type typestruct = {
+	NG_VERSION,
+	NG_ASYNC_NODE_TYPE,
+	NULL,
+	nga_constructor,
+	nga_rcvmsg,
+	nga_shutdown,
+	nga_newhook,
+	NULL,
+	NULL,
+	nga_rcvdata,
+	nga_rcvdata,
+	nga_disconnect
+};
+NETGRAPH_INIT(async, &typestruct);
+
+/* CRC table */
+static const u_int16_t fcstab[];
+
+/******************************************************************
+		    NETGRAPH NODE METHODS
+******************************************************************/
+
+/*
+ * Initialize a new node
+ */
+static int
+nga_constructor(node_p *nodep)
+{
+	sc_p sc;
+	int error;
+
+	if ((error = ng_make_node_common(&typestruct, nodep)))
+		return (error);
+	MALLOC(sc, sc_p, sizeof(*sc), M_NETGRAPH, M_WAITOK);
+	if (sc == NULL)
+		return (ENOMEM);
+	bzero(sc, sizeof(*sc));
+	sc->amode = MODE_HUNT;
+	sc->cfg.accm = ~0;
+	sc->cfg.amru = NG_ASYNC_DEFAULT_MRU;
+	sc->cfg.smru = NG_ASYNC_DEFAULT_MRU;
+	MALLOC(sc->abuf, u_char *,
+	    ASYNC_BUF_SIZE(sc->cfg.smru), M_NETGRAPH, M_WAITOK);
+	if (sc->abuf == NULL)
+		goto fail;
+	MALLOC(sc->sbuf, u_char *,
+	    SYNC_BUF_SIZE(sc->cfg.amru), M_NETGRAPH, M_WAITOK);
+	if (sc->sbuf == NULL) {
+		FREE(sc->abuf, M_NETGRAPH);
+fail:
+		FREE(sc, M_NETGRAPH);
+		return (ENOMEM);
+	}
+	(*nodep)->private = sc;
+	sc->node = *nodep;
+	return (0);
+}
+
+/*
+ * Reserve a hook for a pending connection
+ */
+static int
+nga_newhook(node_p node, hook_p hook, const char *name)
+{
+	const sc_p sc = node->private;
+	hook_p *hookp;
+
+	if (!strcmp(name, NG_ASYNC_HOOK_ASYNC))
+		hookp = &sc->async;
+	else if (!strcmp(name, NG_ASYNC_HOOK_SYNC))
+		hookp = &sc->sync;
+	else if (!strcmp(name, NG_ASYNC_HOOK_SYNC2))
+		hookp = &sc->sync2;
+	else
+		return (EINVAL);
+	if (*hookp)
+		return (EISCONN);
+	*hookp = hook;
+	return (0);
+}
+
+/*
+ * Receive incoming data
+ */
+static int
+nga_rcvdata(hook_p hook, struct mbuf *m, meta_p meta)
+{
+	const sc_p sc = hook->node->private;
+
+	if (hook == sc->sync)
+		return (nga_rcv_sync(sc, m, meta));
+	else if (hook == sc->sync2) {
+		const u_char acfcompSave = sc->cfg.acfcomp;
+		const u_int32_t accmSave = sc->cfg.accm;
+		int     rtn;
+
+		sc->cfg.acfcomp = 0;
+		sc->cfg.accm = ~0;
+		rtn = nga_rcv_sync(sc, m, meta);
+		sc->cfg.acfcomp = acfcompSave;
+		sc->cfg.accm = accmSave;
+		return (rtn);
+	} else if (hook == sc->async)
+		return (nga_rcv_async(sc, m, meta));
+	panic(__FUNCTION__);
+}
+
+/*
+ * Receive incoming control message
+ */
+static int
+nga_rcvmsg(node_p node, struct ng_mesg *msg,
+	const char *rtn, struct ng_mesg **rptr)
+{
+	const sc_p sc = (sc_p) node->private;
+	struct ng_mesg *resp = NULL;
+	int error = 0;
+
+	switch (msg->header.typecookie) {
+	case NGM_ASYNC_COOKIE:
+		switch (msg->header.cmd) {
+		case NGM_ASYNC_CMD_GET_STATS:
+			NG_MKRESPONSE(resp, msg, sizeof(sc->stats), M_NOWAIT);
+			if (resp == NULL)
+				ERROUT(ENOMEM);
+			*((struct ng_async_stat *) resp->data) = sc->stats;
+			break;
+		case NGM_ASYNC_CMD_CLR_STATS:
+			bzero(&sc->stats, sizeof(sc->stats));
+			break;
+		case NGM_ASYNC_CMD_SET_CONFIG:
+		    {
+			struct ng_async_cfg *const cfg =
+				(struct ng_async_cfg *) msg->data;
+			u_char *buf;
+
+			if (msg->header.arglen != sizeof(*cfg))
+				ERROUT(EINVAL);
+			if (cfg->amru < NG_ASYNC_MIN_MRU
+			    || cfg->amru > NG_ASYNC_MAX_MRU
+			    || cfg->smru < NG_ASYNC_MIN_MRU
+			    || cfg->smru > NG_ASYNC_MAX_MRU)
+				ERROUT(EINVAL);
+			cfg->enabled = !!cfg->enabled;	/* normalize */
+			cfg->acfcomp = !!cfg->acfcomp;	/* normalize */
+			if (cfg->smru > sc->cfg.smru) {	/* reallocate buffer */
+				MALLOC(buf, u_char *, ASYNC_BUF_SIZE(cfg->smru),
+				    M_NETGRAPH, M_NOWAIT);
+				if (!buf)
+					ERROUT(ENOMEM);
+				FREE(sc->abuf, M_NETGRAPH);
+				sc->abuf = buf;
+			}
+			if (cfg->amru > sc->cfg.amru) {	/* reallocate buffer */
+				MALLOC(buf, u_char *, SYNC_BUF_SIZE(cfg->amru),
+				    M_NETGRAPH, M_NOWAIT);
+				if (!buf)
+					ERROUT(ENOMEM);
+				FREE(sc->sbuf, M_NETGRAPH);
+				sc->sbuf = buf;
+				sc->amode = MODE_HUNT;
+				sc->slen = 0;
+			}
+			if (!cfg->enabled) {
+				sc->amode = MODE_HUNT;
+				sc->slen = 0;
+			}
+			sc->cfg = *cfg;
+			break;
+		    }
+		case NGM_ASYNC_CMD_GET_CONFIG:
+			NG_MKRESPONSE(resp, msg, sizeof(sc->cfg), M_NOWAIT);
+			if (!resp)
+				ERROUT(ENOMEM);
+			*((struct ng_async_cfg *) resp->data) = sc->cfg;
+			break;
+		default:
+			ERROUT(EINVAL);
+		}
+		break;
+	default:
+		ERROUT(EINVAL);
+	}
+	if (rptr)
+		*rptr = resp;
+	else if (resp)
+		FREE(resp, M_NETGRAPH);
+
+done:
+	FREE(msg, M_NETGRAPH);
+	return (error);
+}
+
+/*
+ * Shutdown this node
+ */
+static int
+nga_shutdown(node_p node)
+{
+	const sc_p sc = node->private;
+
+	ng_cutlinks(node);
+	ng_unname(node);
+	FREE(sc->abuf, M_NETGRAPH);
+	FREE(sc->sbuf, M_NETGRAPH);
+	bzero(sc, sizeof(*sc));
+	FREE(sc, M_NETGRAPH);
+	node->private = NULL;
+	ng_unref(node);
+	return (0);
+}
+
+/*
+ * Lose a hook. When both hooks go away, we disappear.
+ */
+static int
+nga_disconnect(hook_p hook)
+{
+	const sc_p sc = hook->node->private;
+	hook_p *hookp;
+
+	if (hook == sc->async)
+		hookp = &sc->async;
+	else if (hook == sc->sync)
+		hookp = &sc->sync;
+	else if (hook == sc->sync2)
+		hookp = &sc->sync2;
+	else
+		panic(__FUNCTION__);
+	if (!*hookp)
+		panic(__FUNCTION__ "2");
+	*hookp = NULL;
+	bzero(&sc->stats, sizeof(sc->stats));
+#if SYNC_OPT_TIME
+	sc->lasttime = 0;
+#endif
+	if (hook->node->numhooks == 0)
+		ng_rmnode(hook->node);
+	return (0);
+}
+
+/******************************************************************
+		    INTERNAL HELPER STUFF
+******************************************************************/
+
+/*
+ * Encode a byte into the async buffer
+ */
+static __inline__ void
+nga_async_add(const sc_p sc, u_int16_t *fcs, u_int32_t accm, int *len, u_char x)
+{
+	*fcs = PPP_FCS(*fcs, x);
+	if ((x < 32 && ((1 << x) & accm))
+	    || (x == PPP_ESCAPE)
+	    || (x == PPP_FLAG)) {
+		sc->abuf[(*len)++] = PPP_ESCAPE;
+		x ^= PPP_TRANS;
+	}
+	sc->abuf[(*len)++] = x;
+}
+
+/*
+ * Receive incoming synchronous data. Any "meta" information means
+ * for us to apply full ACCM to this frame.
+ */
+static int
+nga_rcv_sync(const sc_p sc, struct mbuf *m, meta_p meta)
+{
+	struct ifnet *const rcvif = m->m_pkthdr.rcvif;
+	u_int16_t fcs, fcs0;
+	int alen, error = 0;
+
+#define ADD_BYTE(x)	\
+  nga_async_add(sc, &fcs, meta ? ~0 : sc->cfg.accm, &alen, (x))
+
+	if (!sc->cfg.enabled) {
+		NG_SEND_DATA(error, sc->async, m, meta);
+		return (error);
+	}
+	if (m->m_pkthdr.len > sc->cfg.smru) {
+		sc->stats.syncOverflows++;
+		NG_FREE_DATA(m, meta);
+		return (EMSGSIZE);
+	}
+	sc->stats.syncFrames++;
+	sc->stats.syncOctets += m->m_pkthdr.len;
+
+	/* Initialize async encoded version of input mbuf */
+	alen = 0;
+	fcs = PPP_INITFCS;
+
+	/* Add beginning sync flag if it's been long enough to need one */
+#if SYNC_OPT_TIME
+	{
+		struct timeval time;
+
+		getmicrotime(&time);
+		if (time.tv_sec >= sc->lasttime + SYNC_OPT_TIME) {
+			sc->abuf[alen++] = PPP_FLAG;
+			sc->lasttime = time.tv_sec;
+		}
+	}
+#else
+	sc->abuf[alen++] = PPP_FLAG;
+#endif
+
+	/* Add option address and control fields, then packet payload */
+	if (!sc->cfg.acfcomp || meta) {
+		ADD_BYTE(PPP_ALLSTATIONS);
+		ADD_BYTE(PPP_UI);
+	}
+	while (m) {
+		struct mbuf *n;
+
+		while (m->m_len > 0) {
+			u_char const ch = *mtod(m, u_char *);
+
+			ADD_BYTE(ch);
+			m->m_data++;
+			m->m_len--;
+		}
+		MFREE(m, n);
+		m = n;
+	}
+
+	/* Add checksum and final sync flag */
+	fcs0 = fcs;
+	ADD_BYTE(~fcs0 & 0xff);
+	ADD_BYTE(~fcs0 >> 8);
+	sc->abuf[alen++] = PPP_FLAG;
+
+	/* Put frame in an mbuf and ship it off */
+	NG_FREE_META(meta);
+	if (!(m = m_devget(sc->abuf, alen, 0, rcvif, NULL)))
+		error = ENOBUFS;
+	else
+		NG_SEND_DATA(error, sc->async, m, meta);
+	return (error);
+}
+
+/*
+ * Receive incoming asynchronous data
+ * XXX technically, we should strip out supposedly escaped characters
+ */
+static int
+nga_rcv_async(const sc_p sc, struct mbuf * m, meta_p meta)
+{
+	struct ifnet *const rcvif = m->m_pkthdr.rcvif;
+	int error;
+
+	if (!sc->cfg.enabled) {
+		NG_SEND_DATA(error, sc->sync, m, meta);
+		return (error);
+	}
+	NG_FREE_META(meta);
+	while (m) {
+		struct mbuf *n;
+
+		for (; m->m_len > 0; m->m_data++, m->m_len--) {
+			u_char  ch = *mtod(m, u_char *);
+
+			sc->stats.asyncOctets++;
+			if (ch == PPP_FLAG) {	/* Flag overrides everything */
+				int     skip = 0;
+
+				/* Check for runts */
+				if (sc->slen < 2) {
+					if (sc->slen > 0)
+						sc->stats.asyncRunts++;
+					goto reset;
+				}
+
+				/* Verify CRC */
+				if (sc->fcs != PPP_GOODFCS) {
+					sc->stats.asyncBadCheckSums++;
+					goto reset;
+				}
+				sc->slen -= 2;
+
+				/* Strip address and control fields */
+				if (sc->slen >= 2
+				    && sc->sbuf[0] == PPP_ALLSTATIONS
+				    && sc->sbuf[1] == PPP_UI)
+					skip = 2;
+
+				/* Check for frame too big */
+				if (sc->slen - skip > sc->cfg.amru) {
+					sc->stats.asyncOverflows++;
+					goto reset;
+				}
+
+				/* OK, ship it out */
+				if ((n = m_devget(sc->sbuf + skip,
+					   sc->slen - skip, 0, rcvif, NULL)))
+					NG_SEND_DATA(error, sc->sync, n, meta);
+				sc->stats.asyncFrames++;
+reset:
+				sc->amode = MODE_NORMAL;
+				sc->fcs = PPP_INITFCS;
+				sc->slen = 0;
+				continue;
+			}
+			switch (sc->amode) {
+			case MODE_NORMAL:
+				if (ch == PPP_ESCAPE) {
+					sc->amode = MODE_ESC;
+					continue;
+				}
+				break;
+			case MODE_ESC:
+				ch ^= PPP_TRANS;
+				sc->amode = MODE_NORMAL;
+				break;
+			case MODE_HUNT:
+			default:
+				continue;
+			}
+
+			/* Add byte to frame */
+			if (sc->slen >= SYNC_BUF_SIZE(sc->cfg.amru)) {
+				sc->stats.asyncOverflows++;
+				sc->amode = MODE_HUNT;
+				sc->slen = 0;
+			} else {
+				sc->sbuf[sc->slen++] = ch;
+				sc->fcs = PPP_FCS(sc->fcs, ch);
+			}
+		}
+		MFREE(m, n);
+		m = n;
+	}
+	return (0);
+}
+
+/*
+ * CRC table
+ *
+ * Taken from RFC 1171 Appendix B
+ */
+static const u_int16_t fcstab[256] = {
+	 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
+	 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
+	 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
+	 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
+	 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
+	 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
+	 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
+	 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
+	 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
+	 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
+	 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
+	 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
+	 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
+	 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
+	 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
+	 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
+	 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
+	 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
+	 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
+	 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
+	 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
+	 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
+	 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
+	 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
+	 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
+	 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
+	 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
+	 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
+	 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
+	 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
+	 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
+	 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
+};