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authorjulian <julian@FreeBSD.org>1999-10-21 09:06:11 +0000
committerjulian <julian@FreeBSD.org>1999-10-21 09:06:11 +0000
commitc5c63975d538cf48ceb99ba48c341293676d15c0 (patch)
tree722c03ee4d750dd89ed43b028c35302fbfd03bfd /sys/netgraph/ng_async.c
parent028ec91c46f181b4be2318c3bba8d194b5583f87 (diff)
downloadFreeBSD-src-c5c63975d538cf48ceb99ba48c341293676d15c0.zip
FreeBSD-src-c5c63975d538cf48ceb99ba48c341293676d15c0.tar.gz
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
Diffstat (limited to 'sys/netgraph/ng_async.c')
-rw-r--r--sys/netgraph/ng_async.c586
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
+};
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