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 $
40 #include <sys/param.h>
41 #include <sys/types.h>
51 #include <dev/dcons/dcons.h>
53 #include <sys/socket.h>
54 #include <netinet/in.h>
58 #include <sys/eui64.h>
59 #include <sys/event.h>
61 #include <arpa/telnet.h>
63 #include <sys/ioccom.h>
64 #include <dev/firewire/firewire.h>
65 #include <dev/firewire/iec13213.h>
70 #include <sys/errno.h>
72 #define DCONS_POLL_HZ 100
73 #define DCONS_POLL_OFFLINE 2 /* sec */
77 #ifdef CSRVAL_VENDOR_PRIVATE
85 int poll_hz = DCONS_POLL_HZ;
86 static u_char abreak[3] = {13 /* CR */, 126 /* ~ */, 2 /* ^B */};
88 #define IS_CONSOLE(p) ((p)->port == DCONS_CON)
89 #define IS_GDB(p) ((p)->port == DCONS_GDB)
91 static struct dcons_state {
97 #define F_READY (1 << 1)
98 #define F_RD_ONLY (1 << 2)
99 #define F_ALT_BREAK (1 << 3)
100 #define F_TELNET (1 << 4)
101 #define F_USE_CROM (1 << 5)
102 #define F_ONE_SHOT (1 << 6)
103 #define F_REPLAY (1 << 7)
120 struct addrinfo *res;
124 struct timespec zero;
125 struct termios tsave;
130 static int dconschat_write_dcons(struct dcons_state *, int, char *, int);
133 dread(struct dcons_state *dc, void *buf, size_t n, off_t offset)
137 return (pread(dc->fd, buf, n, offset));
139 return (kvm_read(dc->kd, offset, buf, n));
145 dwrite(struct dcons_state *dc, void *buf, size_t n, off_t offset)
147 if ((dc->flags & F_RD_ONLY) != 0)
152 return (pwrite(dc->fd, buf, n, offset));
154 return (kvm_write(dc->kd, offset, buf, n));
160 dconschat_reset_target(struct dcons_state *dc, struct dcons_port *p)
166 snprintf(buf, PAGE_SIZE,
167 "\r\n[dconschat reset target(addr=0x%jx)...]\r\n",
168 (intmax_t)dc->reset);
169 write(p->outfd, buf, strlen(buf));
170 bzero(&buf[0], PAGE_SIZE);
171 dwrite(dc, (void *)buf, PAGE_SIZE, dc->reset);
176 dconschat_suspend(struct dcons_state *dc, struct dcons_port *p)
182 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
184 printf("\n[dconschat suspend]\n");
185 kill(getpid(), SIGTSTP);
188 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
192 dconschat_sigchld(int s)
195 struct dcons_port *p;
198 p = &sc.port[DCONS_CON];
200 snprintf(buf, 256, "\r\n[child exit]\r\n");
201 write(p->outfd, buf, strlen(buf));
204 tcsetattr(STDIN_FILENO, TCSADRAIN, &sc.traw);
206 EV_SET(&kev, p->infd, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1, (void *)p);
207 kevent(sc.kq, &kev, 1, NULL, 0, &sc.zero);
211 dconschat_fork_gdb(struct dcons_state *dc, struct dcons_port *p)
214 char buf[256], com[256];
219 snprintf(buf, 256, "\r\n[%s: fork failed]\r\n", __FUNCTION__);
220 write(p->outfd, buf, strlen(buf));
227 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
229 snprintf(com, sizeof(buf), "kgdb -r :%d kernel",
230 dc->port[DCONS_GDB].sport);
231 snprintf(buf, 256, "\n[fork %s]\n", com);
232 write(p->outfd, buf, strlen(buf));
234 execl("/bin/sh", "/bin/sh", "-c", com, NULL);
236 snprintf(buf, 256, "\n[fork failed]\n");
237 write(p->outfd, buf, strlen(buf));
240 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
244 signal(SIGCHLD, dconschat_sigchld);
245 EV_SET(&kev, p->infd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
246 kevent(sc.kq, &kev, 1, NULL, 0, &sc.zero);
252 dconschat_cleanup(int sig)
254 struct dcons_state *dc;
259 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->tsave);
262 printf("\n[dconschat exiting with signal %d ...]\n", sig);
264 printf("\n[dconschat exiting...]\n");
271 dconschat_get_crom(struct dcons_state *dc)
275 u_int32_t buf, hi = 0, lo = 0, reset_hi = 0, reset_lo = 0;
278 reg = (struct csrreg *)&buf;
280 addr = (addr << 32) | 0xf0000400;
281 for (i = 20; i < 0x400; i += 4) {
282 if (dread(dc, &buf, 4, addr + i) < 0) {
284 warn("crom read failed");
289 printf("%d %02x %06x\n", state, reg->key, reg->val);
292 if (reg->key == CSRKEY_SPEC &&
293 reg->val == CSRVAL_VENDOR_PRIVATE)
297 if (reg->key == CSRKEY_VER &&
298 reg->val == DCONS_CSR_VAL_VER)
303 case DCONS_CSR_KEY_HI:
306 case DCONS_CSR_KEY_LO:
309 case DCONS_CSR_KEY_RESET_HI:
312 case DCONS_CSR_KEY_RESET_LO:
326 printf("addr: %06x %06x\n", hi, lo);
327 dc->paddr = ((off_t)hi << 24) | lo;
328 dc->reset = ((off_t)reset_hi << 24) | reset_lo;
336 dconschat_ready(struct dcons_state *dc, int ready, char *reason)
338 static char oldreason[64] = "";
341 old = (dc->flags & F_READY) ? 1 : 0;
344 dc->flags |= F_READY;
346 printf("[dcons connected]\r\n");
349 dc->flags &= ~F_READY;
350 if (strncmp(oldreason, reason, sizeof(oldreason)) != 0) {
351 printf("[dcons disconnected (%s)]\r\n", reason);
352 strlcpy(oldreason, reason, sizeof(oldreason));
358 dconschat_fetch_header(struct dcons_state *dc)
361 struct dcons_buf dbuf;
365 if (dc->paddr == 0 && (dc->flags & F_USE_CROM) != 0) {
366 if (dconschat_get_crom(dc)) {
367 dconschat_ready(dc, 0, "get crom failed");
373 if (dread(dc, &dbuf, DCONS_HEADER_SIZE, dc->paddr) < 0) {
374 dconschat_ready(dc, 0, "read header failed");
377 if (dbuf.magic != htonl(DCONS_MAGIC)) {
378 if ((dc->flags & F_USE_CROM) !=0)
380 snprintf(ebuf, sizeof(ebuf), "wrong magic 0x%08x", dbuf.magic);
381 dconschat_ready(dc, 0, ebuf);
384 if (ntohl(dbuf.version) != DCONS_VERSION) {
385 snprintf(ebuf, sizeof(ebuf),
386 "wrong version %d,%d",
387 ntohl(dbuf.version), DCONS_VERSION);
389 dconschat_ready(dc, 0, ebuf);
393 for (j = 0; j < DCONS_NPORT; j++) {
394 struct dcons_ch *o, *i;
399 newbuf = dc->paddr + ntohl(dbuf.ooffset[j]);
400 o->size = ntohl(dbuf.osize[j]);
402 if (newbuf != o->buf) {
403 /* buffer address has changes */
405 o->gen = ntohl(dbuf.optr[j]) >> DCONS_GEN_SHIFT;
406 o->pos = ntohl(dbuf.optr[j]) & DCONS_POS_MASK;
411 i->size = ntohl(dbuf.isize[j]);
412 i->gen = ntohl(dbuf.iptr[j]) >> DCONS_GEN_SHIFT;
413 i->pos = ntohl(dbuf.iptr[j]) & DCONS_POS_MASK;
414 i->buf = dc->paddr + ntohl(dbuf.ioffset[j]);
417 printf("port %d size offset gen pos\n", j);
418 printf("output: %5d %6d %5d %5d\n"
419 "input : %5d %6d %5d %5d\n",
420 o->size, ntohl(dbuf.ooffset[j]), o->gen, o->pos,
421 i->size, ntohl(dbuf.ioffset[j]), i->gen, i->pos);
424 if (IS_CONSOLE(&dc->port[j]) && new &&
425 (dc->flags & F_REPLAY) !=0) {
432 dconschat_ready(dc, 1, NULL);
437 dconschat_get_ptr (struct dcons_state *dc) {
439 u_int32_t ptr[DCONS_NPORT*2+1];
440 static int retry = RETRY;
444 dlen = dread(dc, &ptr, sizeof(ptr),
445 dc->paddr + __offsetof(struct dcons_buf, magic));
448 if (errno == ETIMEDOUT)
451 dconschat_ready(dc, 0, "get ptr failed");
454 if (ptr[0] != htonl(DCONS_MAGIC)) {
455 if ((dc->flags & F_USE_CROM) !=0)
457 snprintf(ebuf, sizeof(ebuf), "wrong magic 0x%08x", ptr[0]);
458 dconschat_ready(dc, 0, ebuf);
462 for (i = 0; i < DCONS_NPORT; i ++) {
463 dc->port[i].optr = ntohl(ptr[i + 1]);
464 dc->port[i].iptr = ntohl(ptr[DCONS_NPORT + i + 1]);
469 #define MAX_XFER 2048
471 dconschat_read_dcons(struct dcons_state *dc, int port, char *buf, int len)
474 u_int32_t ptr, pos, gen, next_gen;
475 int rlen, dlen, lost;
478 ch = &dc->port[port].o;
479 ptr = dc->port[port].optr;
480 gen = ptr >> DCONS_GEN_SHIFT;
481 pos = ptr & DCONS_POS_MASK;
482 if (gen == ch->gen && pos == ch->pos)
485 next_gen = DCONS_NEXT_GEN(ch->gen);
486 /* XXX sanity check */
487 if (gen == ch->gen) {
490 lost = ch->size * DCONS_GEN_MASK - ch->pos;
492 } else if (gen == next_gen) {
495 lost = pos - ch->pos;
498 lost = gen - ch->gen;
500 lost += DCONS_GEN_MASK;
502 printf("[genskip %d]", lost);
503 lost = lost * ch->size - ch->pos;
507 /* generation skipped !! */
510 printf("[lost %d]", lost);
513 rlen = pos - ch->pos;
515 rlen = ch->size - ch->pos;
524 printf("[%d]", rlen); fflush(stdout);
528 dlen = dread(dc, buf, rlen, ch->buf + ch->pos);
530 if (errno == ETIMEDOUT)
533 dconschat_ready(dc, 0, "read buffer failed");
537 warnx("dlen(%d) != rlen(%d)\n", dlen, rlen);
539 if (ch->pos >= ch->size) {
543 printf("read_dcons: gen=%d", ch->gen);
549 dconschat_write_dcons(struct dcons_state *dc, int port, char *buf, int blen)
556 ch = &dc->port[port].i;
557 ptr = dc->port[port].iptr;
559 /* the others may advance the pointer sync with it */
560 ch->gen = ptr >> DCONS_GEN_SHIFT;
561 ch->pos = ptr & DCONS_POS_MASK;
564 wlen = MIN(blen, ch->size - ch->pos);
565 wlen = MIN(wlen, MAX_XFER);
566 len = dwrite(dc, buf, wlen, ch->buf + ch->pos);
568 if (errno == ETIMEDOUT)
570 continue; /* try again */
571 dconschat_ready(dc, 0, "write buffer failed");
577 if (ch->pos >= ch->size) {
578 ch->gen = DCONS_NEXT_GEN(ch->gen);
581 printf("write_dcons: gen=%d", ch->gen);
586 ptr = DCONS_MAKE_PTR(ch);
587 dc->port[port].iptr = ptr;
590 printf("(iptr: 0x%x)", ptr);
592 len = dwrite(dc, &ptr, sizeof(u_int32_t),
593 dc->paddr + __offsetof(struct dcons_buf, iptr[port]));
595 if (errno == ETIMEDOUT)
598 dconschat_ready(dc, 0, "write ptr failed");
606 dconschat_write_socket(int fd, char *buf, int len)
611 printf("<- %s\n", buf);
617 dconschat_init_socket(struct dcons_state *dc, int port, char *host, int sport)
619 struct addrinfo hints, *res;
623 struct dcons_port *p;
628 p->infd = p->outfd = -1;
635 /* Use stdin and stdout */
636 p->infd = STDIN_FILENO;
637 p->outfd = STDOUT_FILENO;
640 tcgetattr(STDIN_FILENO, &dc->tsave) == 0) {
641 dc->traw = dc->tsave;
642 cfmakeraw(&dc->traw);
643 tcsetattr(STDIN_FILENO, TCSADRAIN, &dc->traw);
646 EV_SET(&kev, p->infd, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1,
648 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
652 memset(&hints, 0, sizeof(hints));
653 hints.ai_flags = AI_PASSIVE;
654 #if 1 /* gdb can talk v4 only */
655 hints.ai_family = PF_INET;
657 hints.ai_family = PF_UNSPEC;
659 hints.ai_socktype = SOCK_STREAM;
660 hints.ai_protocol = 0;
663 printf("%s:%d for port %d\n",
664 host == NULL ? "*" : host, sport, port);
665 snprintf(service, sizeof(service), "%d", sport);
666 error = getaddrinfo(host, service, &hints, &res);
668 errx(1, "tcp/%s: %s\n", service, gai_strerror(error));
670 p->s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
673 setsockopt(p->s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
675 if (bind(p->s, p->res->ai_addr, p->res->ai_addrlen) < 0) {
678 if (listen(p->s, 1) < 0)
680 EV_SET(&kev, p->s, EVFILT_READ, EV_ADD | EV_ONESHOT, 0, 0, (void *)p);
681 error = kevent(dc->kq, &kev, 1, NULL, 0, &dc->to);
688 dconschat_accept_socket(struct dcons_state *dc, struct dcons_port *p)
694 /* accept connection */
695 addrlen = p->res->ai_addrlen;
696 ns = accept(p->s, p->res->ai_addr, &addrlen);
700 printf("port%d accepted\n", p->port);
702 flags = fcntl(ns, F_GETFL, 0);
704 fcntl(ns, F_SETFL, flags);
706 if (IS_CONSOLE(p) && (dc->flags & F_TELNET) != 0) {
707 char sga[] = {IAC, WILL, TELOPT_SGA};
708 char linemode[] = {IAC, DONT, TELOPT_LINEMODE};
709 char echo[] = {IAC, WILL, TELOPT_ECHO};
710 char bin[] = {IAC, DO, TELOPT_BINARY};
712 write(ns, sga, sizeof(sga));
713 write(ns, linemode, sizeof(linemode));
714 write(ns, echo, sizeof(echo));
715 write(ns, bin, sizeof(bin));
719 /* discard backlog on GDB port */
724 while ((len = dconschat_read_dcons(dc, DCONS_GDB, &buf[0],
727 printf("discard %d chars on GDB port\n", len);
730 p->infd = p->outfd = ns;
731 EV_SET(&kev, ns, EVFILT_READ, EV_ADD, NOTE_LOWAT, 1, (void *)p);
732 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
737 dconschat_read_filter(struct dcons_state *dc, struct dcons_port *p,
738 u_char *sp, int slen, u_char *dp, int *dlen)
746 if ((dc->flags & F_TELNET) != 0) {
747 /* XXX Telnet workarounds */
748 if (p->skip_read -- > 0) {
763 printf("(0 stripped)");
769 switch (dc->escape_state) {
771 if (*sp == dc->escape) {
773 dc->escape_state = STATE2;
775 dc->escape_state = STATE0;
778 dc->escape_state = STATE0;
781 dconschat_cleanup(0);
782 else if (*sp == CTRL('B')) {
783 bcopy(abreak, dp, 3);
787 else if (*sp == CTRL('G'))
788 dconschat_fork_gdb(dc, p);
789 else if ((*sp == CTRL('R'))
790 && (dc->reset != 0)) {
791 dc->escape_state = STATE3;
792 buf = "\r\n[Are you sure to reset target? (y/N)]";
793 write(p->outfd, buf, strlen(buf));
794 } else if (*sp == CTRL('Z'))
795 dconschat_suspend(dc, p);
803 dc->escape_state = STATE0;
806 dconschat_reset_target(dc, p);
808 write(p->outfd, sp, 1);
809 write(p->outfd, "\r\n", 2);
814 dc->escape_state = STATE1;
815 } else if (IS_GDB(p)) {
816 /* GDB: ^C -> CR+~+^B */
817 if (*sp == CTRL('C') && (dc->flags & F_ALT_BREAK) != 0) {
818 bcopy(abreak, dp, 3);
822 /* discard rest of the packet */
839 dconschat_read_socket(struct dcons_state *dc, struct dcons_port *p)
843 char rbuf[MAX_XFER], wbuf[MAX_XFER+2];
845 if ((len = read(p->infd, rbuf, sizeof(rbuf))) > 0) {
847 dconschat_read_filter(dc, p, rbuf, len, wbuf, &wlen);
848 /* XXX discard if not ready*/
849 if (wlen > 0 && (dc->flags & F_READY) != 0) {
850 dconschat_write_dcons(dc, p->port, wbuf, wlen);
853 printf("-> %s\n", wbuf);
854 } else if (verbose == 1) {
855 printf("(%d)", wlen);
862 warnx("port%d: closed", p->port);
864 warn("port%d: read", p->port);
866 EV_SET(&kev, p->infd, EVFILT_READ,
867 EV_DELETE, 0, 0, NULL);
868 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
871 /* XXX exit for pipe case XXX */
872 EV_SET(&kev, p->s, EVFILT_READ,
873 EV_ADD | EV_ONESHOT, 0, 0, (void *) p);
874 kevent(dc->kq, &kev, 1, NULL, 0, &dc->zero);
875 p->infd = p->outfd = -1;
881 dconschat_proc_socket(struct dcons_state *dc)
883 struct kevent elist[NEVENT], *e;
885 struct dcons_port *p;
887 n = kevent(dc->kq, NULL, 0, elist, NEVENT, &dc->to);
888 for (i = 0; i < n; i ++) {
890 p = (struct dcons_port *)e->udata;
891 if (e->ident == p->s) {
892 dconschat_accept_socket(dc, p);
894 dconschat_read_socket(dc, p);
901 dconschat_proc_dcons(struct dcons_state *dc)
905 struct dcons_port *p;
907 err = dconschat_get_ptr(dc);
909 /* XXX we should stop write operation too. */
912 for (port = 0; port < DCONS_NPORT; port ++) {
916 while ((len = dconschat_read_dcons(dc, port, buf,
918 dconschat_write_socket(p->outfd, buf, len);
919 if ((err = dconschat_get_ptr(dc)))
922 if ((dc->flags & F_ONE_SHOT) != 0 && len <= 0)
923 dconschat_cleanup(0);
929 dconschat_start_session(struct dcons_state *dc)
933 int retry_unit_init = MAX(1, poll_hz / 10);
934 int retry_unit_offline = poll_hz * DCONS_POLL_OFFLINE;
935 int retry_unit = retry_unit_init;
936 int retry_max = retry_unit_offline / retry_unit;
939 if (((dc->flags & F_READY) == 0) && ++counter > retry_unit) {
942 if (retry > retry_max)
943 retry_unit = retry_unit_offline;
945 printf("%d/%d ", retry, retry_max);
948 dconschat_fetch_header(dc);
950 if ((dc->flags & F_READY) != 0) {
953 retry_unit = retry_unit_init;
954 dconschat_proc_dcons(dc);
956 dconschat_proc_socket(dc);
965 "usage: dconschat [-brvwRT1] [-h hz] [-C port] [-G port]\n"
966 "\t\t\t[-M core] [-N system]\n"
967 "\t\t\t[-u unit] [-a address] [-t target_eui64]\n"
968 "\t-b translate ctrl-C to CR+~+ctrl-B on gdb port\n"
970 "\t-w listen on wildcard address rather than localhost\n"
971 "\t-r replay old buffer on connection\n"
973 "\t-T enable Telnet protocol workaround on console port\n"
974 "\t-1 one shot: read buffer and exit\n"
975 "\t-h polling rate\n"
976 "\t-C port number for console port\n"
977 "\t-G port number for gdb port\n"
982 "\t-u specify unit number of the bus\n"
983 "\t-t EUI64 of target host (must be specified)\n"
984 "\t-a physical address of dcons buffer on target host\n"
989 main(int argc, char **argv)
991 struct dcons_state *dc;
994 char devname[256], *core = NULL, *system = NULL;
996 int unit=0, wildcard=0;
997 int port[DCONS_NPORT];
999 bzero(&sc, sizeof(sc));
1001 dc->flags |= USE_CROM ? F_USE_CROM : 0;
1004 port[0] = 0; /* stdin/out for console */
1005 port[1] = -1; /* disable gdb port */
1007 /* default escape char */
1008 dc->escape = KEY_TILDE;
1010 while ((ch = getopt(argc, argv, "a:be:h:rt:u:vwC:G:M:N:RT1")) != -1) {
1013 dc->paddr = strtoull(optarg, NULL, 0);
1014 dc->flags &= ~F_USE_CROM;
1017 dc->flags |= F_ALT_BREAK;
1020 dc->escape = optarg[0];
1023 poll_hz = strtoul(optarg, NULL, 0);
1025 poll_hz = DCONS_POLL_HZ;
1028 dc->flags |= F_REPLAY;
1031 if (eui64_hostton(optarg, &target) != 0 &&
1032 eui64_aton(optarg, &target) != 0)
1033 errx(1, "invalid target: %s", optarg);
1034 eui.hi = ntohl(*(u_int32_t*)&(target.octet[0]));
1035 eui.lo = ntohl(*(u_int32_t*)&(target.octet[4]));
1039 unit = strtol(optarg, NULL, 0);
1048 port[0] = strtol(optarg, NULL, 0);
1051 port[1] = strtol(optarg, NULL, 0);
1060 dc->flags |= F_RD_ONLY;
1063 dc->flags |= F_TELNET;
1066 dc->flags |= F_ONE_SHOT | F_REPLAY;
1072 if (dc->paddr == 0 && (dc->flags & F_USE_CROM) == 0) {
1073 warnx("no address specified");
1077 if (port[0] < 0 && port[1] < 0) {
1078 warnx("no port specified");
1082 /* set signal handler */
1083 signal(SIGHUP, dconschat_cleanup);
1084 signal(SIGINT, dconschat_cleanup);
1085 signal(SIGPIPE, dconschat_cleanup);
1086 signal(SIGTERM, dconschat_cleanup);
1092 for (i = 0; i < MAXDEV; i ++) {
1093 snprintf(devname, sizeof(devname),
1094 "/dev/fwmem%d.%d", unit, i);
1095 dc->fd = open(devname, O_RDWR);
1101 error = ioctl(dc->fd, FW_SDEUI64, &eui);
1107 struct nlist nl[] = {{"dcons_buf"}, {""}};
1110 dc->kd = kvm_open(system, core, NULL,
1111 (dc->flags & F_RD_ONLY) ? O_RDONLY : O_RDWR, "dconschat");
1113 errx(1, "kvm_open");
1115 if (kvm_nlist(dc->kd, nl) < 0)
1116 errx(1, "kvm_nlist: %s", kvm_geterr(dc->kd));
1118 if (kvm_read(dc->kd, nl[0].n_value, &dcons_buf,
1119 sizeof(void *)) < 0)
1120 errx(1, "kvm_read: %s", kvm_geterr(dc->kd));
1121 dc->paddr = (uintptr_t)dcons_buf;
1123 printf("dcons_buf: 0x%x\n", (uint)dc->paddr);
1127 dconschat_fetch_header(dc);
1136 dc->to.tv_nsec = 1000 * 1000 * 1000 / poll_hz;
1138 dc->zero.tv_sec = 0;
1139 dc->zero.tv_nsec = 0;
1140 for (i = 0; i < DCONS_NPORT; i++)
1141 dconschat_init_socket(dc, i,
1142 wildcard ? NULL : "localhost", port[i]);
1144 dconschat_start_session(dc);
1146 for (i = 0; i < DCONS_NPORT; i++) {
1147 freeaddrinfo(dc->port[i].res);