2 * SPDX-License-Identifier: BSD-4-Clause
5 * Hidetoshi Shimokawa. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
18 * This product includes software developed by Hidetoshi Shimokawa.
20 * 4. Neither the name of the author nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * $Id: dconschat.c,v 1.76 2003/10/23 06:21:13 simokawa Exp $
39 #include <sys/param.h>
40 #include <sys/types.h>
50 #include <dev/dcons/dcons.h>
52 #include <sys/socket.h>
53 #include <netinet/in.h>
57 #include <sys/eui64.h>
58 #include <sys/event.h>
60 #include <arpa/telnet.h>
62 #include <sys/ioccom.h>
63 #include <dev/firewire/firewire.h>
64 #include <dev/firewire/iec13213.h>
69 #include <sys/errno.h>
71 #define DCONS_POLL_HZ 100
72 #define DCONS_POLL_OFFLINE 2 /* sec */
76 #ifdef CSRVAL_VENDOR_PRIVATE
84 int poll_hz = DCONS_POLL_HZ;
85 static u_char abreak[3] = {13 /* CR */, 126 /* ~ */, 2 /* ^B */};
87 #define IS_CONSOLE(p) ((p)->port == DCONS_CON)
88 #define IS_GDB(p) ((p)->port == DCONS_GDB)
90 static struct dcons_state {
96 #define F_READY (1 << 1)
97 #define F_RD_ONLY (1 << 2)
98 #define F_ALT_BREAK (1 << 3)
99 #define F_TELNET (1 << 4)
100 #define F_USE_CROM (1 << 5)
101 #define F_ONE_SHOT (1 << 6)
102 #define F_REPLAY (1 << 7)
119 struct addrinfo *res;
123 struct timespec zero;
124 struct termios tsave;
129 static int dconschat_write_dcons(struct dcons_state *, int, char *, int);
132 dread(struct dcons_state *dc, void *buf, size_t n, off_t offset)
136 return (pread(dc->fd, buf, n, offset));
138 return (kvm_read(dc->kd, offset, buf, n));
144 dwrite(struct dcons_state *dc, void *buf, size_t n, off_t offset)
146 if ((dc->flags & F_RD_ONLY) != 0)
151 return (pwrite(dc->fd, buf, n, offset));
153 return (kvm_write(dc->kd, offset, buf, n));
159 dconschat_reset_target(struct dcons_state *dc, struct dcons_port *p)
165 snprintf(buf, PAGE_SIZE,
166 "\r\n[dconschat reset target(addr=0x%jx)...]\r\n",
167 (intmax_t)dc->reset);
168 write(p->outfd, buf, strlen(buf));
169 bzero(&buf[0], PAGE_SIZE);
170 dwrite(dc, (void *)buf, PAGE_SIZE, dc->reset);
175 dconschat_suspend(struct dcons_state *dc, struct dcons_port *p)
181 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
183 printf("\n[dconschat suspend]\n");
184 kill(getpid(), SIGTSTP);
187 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
191 dconschat_sigchld(int s)
194 struct dcons_port *p;
197 p = &sc.port[DCONS_CON];
199 snprintf(buf, 256, "\r\n[child exit]\r\n");
200 write(p->outfd, buf, strlen(buf));
203 tcsetattr(STDIN_FILENO, TCSADRAIN, &sc.traw);
205 EV_SET(&kev, p->infd, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1, (void *)p);
206 kevent(sc.kq, &kev, 1, NULL, 0, &sc.zero);
210 dconschat_fork_gdb(struct dcons_state *dc, struct dcons_port *p)
213 char buf[256], com[256];
218 snprintf(buf, 256, "\r\n[%s: fork failed]\r\n", __FUNCTION__);
219 write(p->outfd, buf, strlen(buf));
226 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
228 snprintf(com, sizeof(buf), "kgdb -r :%d kernel",
229 dc->port[DCONS_GDB].sport);
230 snprintf(buf, 256, "\n[fork %s]\n", com);
231 write(p->outfd, buf, strlen(buf));
233 execl("/bin/sh", "/bin/sh", "-c", com, NULL);
235 snprintf(buf, 256, "\n[fork failed]\n");
236 write(p->outfd, buf, strlen(buf));
239 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
243 signal(SIGCHLD, dconschat_sigchld);
244 EV_SET(&kev, p->infd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
245 kevent(sc.kq, &kev, 1, NULL, 0, &sc.zero);
251 dconschat_cleanup(int sig)
253 struct dcons_state *dc;
258 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
261 printf("\n[dconschat exiting with signal %d ...]\n", sig);
263 printf("\n[dconschat exiting...]\n");
270 dconschat_get_crom(struct dcons_state *dc)
274 u_int32_t buf, hi = 0, lo = 0, reset_hi = 0, reset_lo = 0;
277 reg = (struct csrreg *)&buf;
279 addr = (addr << 32) | 0xf0000400;
280 for (i = 20; i < 0x400; i += 4) {
281 if (dread(dc, &buf, 4, addr + i) < 0) {
283 warn("crom read failed");
288 printf("%d %02x %06x\n", state, reg->key, reg->val);
291 if (reg->key == CSRKEY_SPEC &&
292 reg->val == CSRVAL_VENDOR_PRIVATE)
296 if (reg->key == CSRKEY_VER &&
297 reg->val == DCONS_CSR_VAL_VER)
302 case DCONS_CSR_KEY_HI:
305 case DCONS_CSR_KEY_LO:
308 case DCONS_CSR_KEY_RESET_HI:
311 case DCONS_CSR_KEY_RESET_LO:
325 printf("addr: %06x %06x\n", hi, lo);
326 dc->paddr = ((off_t)hi << 24) | lo;
327 dc->reset = ((off_t)reset_hi << 24) | reset_lo;
335 dconschat_ready(struct dcons_state *dc, int ready, char *reason)
337 static char oldreason[64] = "";
340 old = (dc->flags & F_READY) ? 1 : 0;
343 dc->flags |= F_READY;
345 printf("[dcons connected]\r\n");
348 dc->flags &= ~F_READY;
349 if (strncmp(oldreason, reason, sizeof(oldreason)) != 0) {
350 printf("[dcons disconnected (%s)]\r\n", reason);
351 strlcpy(oldreason, reason, sizeof(oldreason));
357 dconschat_fetch_header(struct dcons_state *dc)
360 struct dcons_buf dbuf;
364 if (dc->paddr == 0 && (dc->flags & F_USE_CROM) != 0) {
365 if (dconschat_get_crom(dc)) {
366 dconschat_ready(dc, 0, "get crom failed");
372 if (dread(dc, &dbuf, DCONS_HEADER_SIZE, dc->paddr) < 0) {
373 dconschat_ready(dc, 0, "read header failed");
376 if (dbuf.magic != htonl(DCONS_MAGIC)) {
377 if ((dc->flags & F_USE_CROM) !=0)
379 snprintf(ebuf, sizeof(ebuf), "wrong magic 0x%08x", dbuf.magic);
380 dconschat_ready(dc, 0, ebuf);
383 if (ntohl(dbuf.version) != DCONS_VERSION) {
384 snprintf(ebuf, sizeof(ebuf),
385 "wrong version %d,%d",
386 ntohl(dbuf.version), DCONS_VERSION);
388 dconschat_ready(dc, 0, ebuf);
392 for (j = 0; j < DCONS_NPORT; j++) {
393 struct dcons_ch *o, *i;
398 newbuf = dc->paddr + ntohl(dbuf.ooffset[j]);
399 o->size = ntohl(dbuf.osize[j]);
401 if (newbuf != o->buf) {
402 /* buffer address has changes */
404 o->gen = ntohl(dbuf.optr[j]) >> DCONS_GEN_SHIFT;
405 o->pos = ntohl(dbuf.optr[j]) & DCONS_POS_MASK;
410 i->size = ntohl(dbuf.isize[j]);
411 i->gen = ntohl(dbuf.iptr[j]) >> DCONS_GEN_SHIFT;
412 i->pos = ntohl(dbuf.iptr[j]) & DCONS_POS_MASK;
413 i->buf = dc->paddr + ntohl(dbuf.ioffset[j]);
416 printf("port %d size offset gen pos\n", j);
417 printf("output: %5d %6d %5d %5d\n"
418 "input : %5d %6d %5d %5d\n",
419 o->size, ntohl(dbuf.ooffset[j]), o->gen, o->pos,
420 i->size, ntohl(dbuf.ioffset[j]), i->gen, i->pos);
423 if (IS_CONSOLE(&dc->port[j]) && new &&
424 (dc->flags & F_REPLAY) !=0) {
431 dconschat_ready(dc, 1, NULL);
436 dconschat_get_ptr (struct dcons_state *dc) {
438 u_int32_t ptr[DCONS_NPORT*2+1];
439 static int retry = RETRY;
443 dlen = dread(dc, &ptr, sizeof(ptr),
444 dc->paddr + __offsetof(struct dcons_buf, magic));
447 if (errno == ETIMEDOUT)
450 dconschat_ready(dc, 0, "get ptr failed");
453 if (ptr[0] != htonl(DCONS_MAGIC)) {
454 if ((dc->flags & F_USE_CROM) !=0)
456 snprintf(ebuf, sizeof(ebuf), "wrong magic 0x%08x", ptr[0]);
457 dconschat_ready(dc, 0, ebuf);
461 for (i = 0; i < DCONS_NPORT; i ++) {
462 dc->port[i].optr = ntohl(ptr[i + 1]);
463 dc->port[i].iptr = ntohl(ptr[DCONS_NPORT + i + 1]);
468 #define MAX_XFER 2048
470 dconschat_read_dcons(struct dcons_state *dc, int port, char *buf, int len)
473 u_int32_t ptr, pos, gen, next_gen;
474 int rlen, dlen, lost;
477 ch = &dc->port[port].o;
478 ptr = dc->port[port].optr;
479 gen = ptr >> DCONS_GEN_SHIFT;
480 pos = ptr & DCONS_POS_MASK;
481 if (gen == ch->gen && pos == ch->pos)
484 next_gen = DCONS_NEXT_GEN(ch->gen);
485 /* XXX sanity check */
486 if (gen == ch->gen) {
489 lost = ch->size * DCONS_GEN_MASK - ch->pos;
491 } else if (gen == next_gen) {
494 lost = pos - ch->pos;
497 lost = gen - ch->gen;
499 lost += DCONS_GEN_MASK;
501 printf("[genskip %d]", lost);
502 lost = lost * ch->size - ch->pos;
506 /* generation skipped !! */
509 printf("[lost %d]", lost);
512 rlen = pos - ch->pos;
514 rlen = ch->size - ch->pos;
523 printf("[%d]", rlen); fflush(stdout);
527 dlen = dread(dc, buf, rlen, ch->buf + ch->pos);
529 if (errno == ETIMEDOUT)
532 dconschat_ready(dc, 0, "read buffer failed");
536 warnx("dlen(%d) != rlen(%d)\n", dlen, rlen);
538 if (ch->pos >= ch->size) {
542 printf("read_dcons: gen=%d", ch->gen);
548 dconschat_write_dcons(struct dcons_state *dc, int port, char *buf, int blen)
555 ch = &dc->port[port].i;
556 ptr = dc->port[port].iptr;
558 /* the others may advance the pointer sync with it */
559 ch->gen = ptr >> DCONS_GEN_SHIFT;
560 ch->pos = ptr & DCONS_POS_MASK;
563 wlen = MIN(blen, ch->size - ch->pos);
564 wlen = MIN(wlen, MAX_XFER);
565 len = dwrite(dc, buf, wlen, ch->buf + ch->pos);
567 if (errno == ETIMEDOUT)
569 continue; /* try again */
570 dconschat_ready(dc, 0, "write buffer failed");
576 if (ch->pos >= ch->size) {
577 ch->gen = DCONS_NEXT_GEN(ch->gen);
580 printf("write_dcons: gen=%d", ch->gen);
585 ptr = DCONS_MAKE_PTR(ch);
586 dc->port[port].iptr = ptr;
589 printf("(iptr: 0x%x)", ptr);
591 len = dwrite(dc, &ptr, sizeof(u_int32_t),
592 dc->paddr + __offsetof(struct dcons_buf, iptr[port]));
594 if (errno == ETIMEDOUT)
597 dconschat_ready(dc, 0, "write ptr failed");
605 dconschat_write_socket(int fd, char *buf, int len)
610 printf("<- %s\n", buf);
616 dconschat_init_socket(struct dcons_state *dc, int port, char *host, int sport)
618 struct addrinfo hints, *res;
622 struct dcons_port *p;
627 p->infd = p->outfd = -1;
634 /* Use stdin and stdout */
635 p->infd = STDIN_FILENO;
636 p->outfd = STDOUT_FILENO;
639 tcgetattr(STDIN_FILENO, &dc->tsave) == 0) {
640 dc->traw = dc->tsave;
641 cfmakeraw(&dc->traw);
642 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
645 EV_SET(&kev, p->infd, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1,
647 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
651 memset(&hints, 0, sizeof(hints));
652 hints.ai_flags = AI_PASSIVE;
653 #if 1 /* gdb can talk v4 only */
654 hints.ai_family = PF_INET;
656 hints.ai_family = PF_UNSPEC;
658 hints.ai_socktype = SOCK_STREAM;
659 hints.ai_protocol = 0;
662 printf("%s:%d for port %d\n",
663 host == NULL ? "*" : host, sport, port);
664 snprintf(service, sizeof(service), "%d", sport);
665 error = getaddrinfo(host, service, &hints, &res);
667 errx(1, "tcp/%s: %s\n", service, gai_strerror(error));
669 p->s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
672 setsockopt(p->s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
674 if (bind(p->s, p->res->ai_addr, p->res->ai_addrlen) < 0) {
677 if (listen(p->s, 1) < 0)
679 EV_SET(&kev, p->s, EVFILT_READ, EV_ADD | EV_ONESHOT, 0, 0, (void *)p);
680 error = kevent(dc->kq, &kev, 1, NULL, 0, &dc->to);
686 dconschat_accept_socket(struct dcons_state *dc, struct dcons_port *p)
692 /* accept connection */
693 addrlen = p->res->ai_addrlen;
694 ns = accept(p->s, p->res->ai_addr, &addrlen);
698 printf("port%d accepted\n", p->port);
700 flags = fcntl(ns, F_GETFL, 0);
702 fcntl(ns, F_SETFL, flags);
704 if (IS_CONSOLE(p) && (dc->flags & F_TELNET) != 0) {
705 char sga[] = {IAC, WILL, TELOPT_SGA};
706 char linemode[] = {IAC, DONT, TELOPT_LINEMODE};
707 char echo[] = {IAC, WILL, TELOPT_ECHO};
708 char bin[] = {IAC, DO, TELOPT_BINARY};
710 write(ns, sga, sizeof(sga));
711 write(ns, linemode, sizeof(linemode));
712 write(ns, echo, sizeof(echo));
713 write(ns, bin, sizeof(bin));
717 /* discard backlog on GDB port */
722 while ((len = dconschat_read_dcons(dc, DCONS_GDB, &buf[0],
725 printf("discard %d chars on GDB port\n", len);
728 p->infd = p->outfd = ns;
729 EV_SET(&kev, ns, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1, (void *)p);
730 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
735 dconschat_read_filter(struct dcons_state *dc, struct dcons_port *p,
736 u_char *sp, int slen, u_char *dp, int *dlen)
744 if ((dc->flags & F_TELNET) != 0) {
745 /* XXX Telnet workarounds */
746 if (p->skip_read -- > 0) {
761 printf("(0 stripped)");
767 switch (dc->escape_state) {
769 if (*sp == dc->escape) {
771 dc->escape_state = STATE2;
773 dc->escape_state = STATE0;
776 dc->escape_state = STATE0;
779 dconschat_cleanup(0);
780 else if (*sp == CTRL('B')) {
781 bcopy(abreak, dp, 3);
785 else if (*sp == CTRL('G'))
786 dconschat_fork_gdb(dc, p);
787 else if ((*sp == CTRL('R'))
788 && (dc->reset != 0)) {
789 dc->escape_state = STATE3;
790 buf = "\r\n[Are you sure to reset target? (y/N)]";
791 write(p->outfd, buf, strlen(buf));
792 } else if (*sp == CTRL('Z'))
793 dconschat_suspend(dc, p);
801 dc->escape_state = STATE0;
804 dconschat_reset_target(dc, p);
806 write(p->outfd, sp, 1);
807 write(p->outfd, "\r\n", 2);
812 dc->escape_state = STATE1;
813 } else if (IS_GDB(p)) {
814 /* GDB: ^C -> CR+~+^B */
815 if (*sp == CTRL('C') && (dc->flags & F_ALT_BREAK) != 0) {
816 bcopy(abreak, dp, 3);
820 /* discard rest of the packet */
837 dconschat_read_socket(struct dcons_state *dc, struct dcons_port *p)
841 char rbuf[MAX_XFER], wbuf[MAX_XFER+2];
843 if ((len = read(p->infd, rbuf, sizeof(rbuf))) > 0) {
845 dconschat_read_filter(dc, p, rbuf, len, wbuf, &wlen);
846 /* XXX discard if not ready*/
847 if (wlen > 0 && (dc->flags & F_READY) != 0) {
848 dconschat_write_dcons(dc, p->port, wbuf, wlen);
851 printf("-> %s\n", wbuf);
852 } else if (verbose == 1) {
853 printf("(%d)", wlen);
860 warnx("port%d: closed", p->port);
862 warn("port%d: read", p->port);
864 EV_SET(&kev, p->infd, EVFILT_READ,
865 EV_DELETE, 0, 0, NULL);
866 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
869 /* XXX exit for pipe case XXX */
870 EV_SET(&kev, p->s, EVFILT_READ,
871 EV_ADD | EV_ONESHOT, 0, 0, (void *) p);
872 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
873 p->infd = p->outfd = -1;
879 dconschat_proc_socket(struct dcons_state *dc)
881 struct kevent elist[NEVENT], *e;
883 struct dcons_port *p;
885 n = kevent(dc->kq, NULL, 0, elist, NEVENT, &dc->to);
886 for (i = 0; i < n; i ++) {
888 p = (struct dcons_port *)e->udata;
889 if (e->ident == p->s) {
890 dconschat_accept_socket(dc, p);
892 dconschat_read_socket(dc, p);
899 dconschat_proc_dcons(struct dcons_state *dc)
903 struct dcons_port *p;
905 err = dconschat_get_ptr(dc);
907 /* XXX we should stop write operation too. */
910 for (port = 0; port < DCONS_NPORT; port ++) {
914 while ((len = dconschat_read_dcons(dc, port, buf,
916 dconschat_write_socket(p->outfd, buf, len);
917 if ((err = dconschat_get_ptr(dc)))
920 if ((dc->flags & F_ONE_SHOT) != 0 && len <= 0)
921 dconschat_cleanup(0);
927 dconschat_start_session(struct dcons_state *dc)
931 int retry_unit_init = MAX(1, poll_hz / 10);
932 int retry_unit_offline = poll_hz * DCONS_POLL_OFFLINE;
933 int retry_unit = retry_unit_init;
934 int retry_max = retry_unit_offline / retry_unit;
937 if (((dc->flags & F_READY) == 0) && ++counter > retry_unit) {
940 if (retry > retry_max)
941 retry_unit = retry_unit_offline;
943 printf("%d/%d ", retry, retry_max);
946 dconschat_fetch_header(dc);
948 if ((dc->flags & F_READY) != 0) {
951 retry_unit = retry_unit_init;
952 dconschat_proc_dcons(dc);
954 dconschat_proc_socket(dc);
963 "usage: dconschat [-brvwRT1] [-h hz] [-C port] [-G port]\n"
964 "\t\t\t[-M core] [-N system]\n"
965 "\t\t\t[-u unit] [-a address] [-t target_eui64]\n"
966 "\t-b translate ctrl-C to CR+~+ctrl-B on gdb port\n"
968 "\t-w listen on wildcard address rather than localhost\n"
969 "\t-r replay old buffer on connection\n"
971 "\t-T enable Telnet protocol workaround on console port\n"
972 "\t-1 one shot: read buffer and exit\n"
973 "\t-h polling rate\n"
974 "\t-C port number for console port\n"
975 "\t-G port number for gdb port\n"
980 "\t-u specify unit number of the bus\n"
981 "\t-t EUI64 of target host (must be specified)\n"
982 "\t-a physical address of dcons buffer on target host\n"
987 main(int argc, char **argv)
989 struct dcons_state *dc;
992 char devname[256], *core = NULL, *system = NULL;
994 int unit=0, wildcard=0;
995 int port[DCONS_NPORT];
997 bzero(&sc, sizeof(sc));
999 dc->flags |= USE_CROM ? F_USE_CROM : 0;
1002 port[0] = 0; /* stdin/out for console */
1003 port[1] = -1; /* disable gdb port */
1005 /* default escape char */
1006 dc->escape = KEY_TILDE;
1008 while ((ch = getopt(argc, argv, "a:be:h:rt:u:vwC:G:M:N:RT1")) != -1) {
1011 dc->paddr = strtoull(optarg, NULL, 0);
1012 dc->flags &= ~F_USE_CROM;
1015 dc->flags |= F_ALT_BREAK;
1018 dc->escape = optarg[0];
1021 poll_hz = strtoul(optarg, NULL, 0);
1023 poll_hz = DCONS_POLL_HZ;
1026 dc->flags |= F_REPLAY;
1029 if (eui64_hostton(optarg, &target) != 0 &&
1030 eui64_aton(optarg, &target) != 0)
1031 errx(1, "invalid target: %s", optarg);
1032 eui.hi = ntohl(*(u_int32_t*)&(target.octet[0]));
1033 eui.lo = ntohl(*(u_int32_t*)&(target.octet[4]));
1037 unit = strtol(optarg, NULL, 0);
1046 port[0] = strtol(optarg, NULL, 0);
1049 port[1] = strtol(optarg, NULL, 0);
1058 dc->flags |= F_RD_ONLY;
1061 dc->flags |= F_TELNET;
1064 dc->flags |= F_ONE_SHOT | F_REPLAY;
1070 if (dc->paddr == 0 && (dc->flags & F_USE_CROM) == 0) {
1071 warnx("no address specified");
1075 if (port[0] < 0 && port[1] < 0) {
1076 warnx("no port specified");
1080 /* set signal handler */
1081 signal(SIGHUP, dconschat_cleanup);
1082 signal(SIGINT, dconschat_cleanup);
1083 signal(SIGPIPE, dconschat_cleanup);
1084 signal(SIGTERM, dconschat_cleanup);
1090 for (i = 0; i < MAXDEV; i ++) {
1091 snprintf(devname, sizeof(devname),
1092 "/dev/fwmem%d.%d", unit, i);
1093 dc->fd = open(devname, O_RDWR);
1099 error = ioctl(dc->fd, FW_SDEUI64, &eui);
1105 struct nlist nl[] = {{"dcons_buf"}, {""}};
1108 dc->kd = kvm_open(system, core, NULL,
1109 (dc->flags & F_RD_ONLY) ? O_RDONLY : O_RDWR, "dconschat");
1111 errx(1, "kvm_open");
1113 if (kvm_nlist(dc->kd, nl) < 0)
1114 errx(1, "kvm_nlist: %s", kvm_geterr(dc->kd));
1116 if (kvm_read(dc->kd, nl[0].n_value, &dcons_buf,
1117 sizeof(void *)) < 0)
1118 errx(1, "kvm_read: %s", kvm_geterr(dc->kd));
1119 dc->paddr = (uintptr_t)dcons_buf;
1121 printf("dcons_buf: 0x%x\n", (uint)dc->paddr);
1125 dconschat_fetch_header(dc);
1134 dc->to.tv_nsec = 1000 * 1000 * 1000 / poll_hz;
1136 dc->zero.tv_sec = 0;
1137 dc->zero.tv_nsec = 0;
1138 for (i = 0; i < DCONS_NPORT; i++)
1139 dconschat_init_socket(dc, i,
1140 wildcard ? NULL : "localhost", port[i]);
1142 dconschat_start_session(dc);
1144 for (i = 0; i < DCONS_NPORT; i++) {
1145 freeaddrinfo(dc->port[i].res);