1/*
2 * PPP User command processing module
3 *
4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp)
5 *
6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
7 *
8 * Redistribution and use in source and binary forms are permitted
9 * provided that the above copyright notice and this paragraph are
10 * duplicated in all such forms and that any documentation,
11 * advertising materials, and other materials related to such
12 * distribution and use acknowledge that the software was developed
13 * by the Internet Initiative Japan, Inc. The name of the
14 * IIJ may not be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 *
20 * $Id: command.c,v 1.9 1995/09/02 17:20:50 amurai Exp $
21 *
22 */
23#include <ctype.h>
24#include <termios.h>
25#include "fsm.h"
26#include "phase.h"
27#include "lcp.h"
28#include "ipcp.h"
29#include "modem.h"
30#include "command.h"
31#include "hdlc.h"
32#include "vars.h"
33#include "auth.h"
34#include <netdb.h>
35#include <sys/socket.h>
36#include <arpa/inet.h>
37#include <net/route.h>
38#include "os.h"
39#include <paths.h>
40
41extern int MakeArgs();
42extern void Cleanup(), TtyTermMode(), PacketMode();
43extern int EnableCommand(), DisableCommand(), DisplayCommand();
44extern int AcceptCommand(), DenyCommand();
45extern int LocalAuthCommand();
46extern int LoadCommand(), SaveCommand();
47extern int ChangeParity(char *);
48extern int SelectSystem();
49extern int ShowRoute();
50extern void TtyOldMode(), TtyCommandMode();
51extern struct pppvars pppVars;
52
53struct in_addr ifnetmask;
54
55static int ShowCommand(), TerminalCommand(), QuitCommand();
56static int CloseCommand(), DialCommand(), DownCommand();
57static int SetCommand(), AddCommand(), DeleteCommand();
58static int ShellCommand();
59
60static int
61HelpCommand(list, argc, argv, plist)
62struct cmdtab *list;
63int argc;
64char **argv;
65struct cmdtab *plist;
66{
67 struct cmdtab *cmd;
68 int n;
69 char c;
70
71 if (argc > 0) {
72 for (cmd = plist; cmd->name; cmd++) {
73 if (strcmp(cmd->name, *argv) == 0 && (cmd->lauth & VarLocalAuth)) {
74 printf("%s %s\n", cmd->name, cmd->syntax);
75 return(1);
76 }
77 }
78 return(1);
79 }
80 n = 0;
81 for (cmd = plist; cmd->func; cmd++) {
82 if (cmd->name && (cmd->lauth & VarLocalAuth)) {
83 c = (n & 1)? '\n' : '\t';
84 printf(" %-8s: %-20s%c", cmd->name, cmd->helpmes, c);
85 n++;
86 }
87 }
88 if (n & 1)
89 printf("\n");
90 return(1);
91}
92
93int
94IsInteractive()
95{
96 char *mes = NULL;
97
98 if (mode & MODE_AUTO)
99 mes = "Working in auto mode.";
100 else if (mode & MODE_DIRECT)
101 mes = "Working in direct mode.";
102 else if (mode & MODE_DEDICATED)
103 mes = "Working in dedicated mode.";
104 if (mes) {
105 printf("%s\n", mes);
106 return(0);
107 }
108 return(1);
109}
110
111static int
112DialCommand(cmdlist, argc, argv)
113struct cmdtab *cmdlist;
114int argc;
115char **argv;
116{
117 int tries;
118
119 if (LcpFsm.state > ST_CLOSED) {
120 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]);
121 return(1);
122 }
123 if (!IsInteractive())
124 return(1);
125 if (argc > 0) {
126 if (SelectSystem(*argv, CONFFILE) < 0) {
127 printf("%s: not found.\n", *argv);
128 return(1);
129 }
130 }
131 tries = 0;
132 do {
133 printf("Dial attempt %u\n", ++tries);
134 modem = OpenModem(mode);
135 if (modem < 0) {
136 printf("failed to open modem.\n");
137 modem = 0;
138 break;
139 }
140 if (DialModem()) {
141 sleep(1);
142 ModemTimeout();
143 PacketMode();
144 break;
145 }
146 } while (VarDialTries == 0 || tries < VarDialTries);
147 return(1);
148}
149
150static int
151ShellCommand(cmdlist, argc, argv)
152struct cmdtab *cmdlist;
153int argc;
154char **argv;
155{
156 const char *shell;
157 pid_t shpid;
158
159 if((shell = getenv("SHELL")) == 0) {
160 shell = _PATH_BSHELL;
161 }
162
163#ifndef HAVE_SHELL_CMD_WITH_ANY_MODE
164 if( mode != MODE_INTER) {
165 fprintf(stdout,
166 "Can start an shell only in interactive mode\n");
167 return(1);
168 }
169#else
170 if(argc == 0 && !(mode & MODE_INTER)) {
171 fprintf(stderr,
172 "Can start an interactive shell only in interactive mode\n");
173 return(1);
174 }
175#endif /* HAVE_SHELL_CMD_WITH_ANY_MODE */
176
177 if((shpid = fork()) == 0) {
178 int i;
179 for(i = 3; i < getdtablesize(); i++)
180 (void)close(i);
181
182 /*
183 * We are running setuid, we should change to
184 * real user for avoiding security problems.
185 */
186 setgid( getgid() );
187 setuid( getuid() );
188
189 TtyOldMode();
190 if(argc > 0)
191 execvp(argv[0], argv);
192 else
193 execl(shell, shell, NULL);
194
195 fprintf(stdout, "exec() of %s failed\n", argc > 0? argv[0]: shell);
196 exit(255);
197 }
198 if( shpid == (pid_t)-1 ) {
199 fprintf(stdout, "Fork failed\n");
200 } else {
201 int status;
202 (void)waitpid(shpid, &status, 0);
203 }
204
205 TtyCommandMode(1);
206
207 return(0);
208}
209
210static char StrOption[] = "option ..";
211static char StrRemote[] = "[remote]";
212char StrNull[] = "";
213
214struct cmdtab Commands[] = {
215 { "accept", NULL, AcceptCommand, LOCAL_AUTH,
216 "accept option request", StrOption},
217 { "add", NULL, AddCommand, LOCAL_AUTH,
218 "add route", "dest mask gateway"},
219 { "close", NULL, CloseCommand, LOCAL_AUTH,
220 "Close connection", StrNull},
221 { "delete", NULL, DeleteCommand, LOCAL_AUTH,
222 "delete route", "dest gateway"},
223 { "deny", NULL, DenyCommand, LOCAL_AUTH,
224 "Deny option request", StrOption},
225 { "dial", "call", DialCommand, LOCAL_AUTH,
226 "Dial and login", StrRemote},
227 { "disable", NULL, DisableCommand, LOCAL_AUTH,
228 "Disable option", StrOption},
229 { "display", NULL, DisplayCommand, LOCAL_AUTH,
230 "Display option configs", StrNull},
231 { "enable", NULL, EnableCommand, LOCAL_AUTH,
232 "Enable option", StrOption},
233 { "passwd", NULL, LocalAuthCommand,LOCAL_NO_AUTH,
234 "Password for manipulation", StrOption},
235 { "load", NULL, LoadCommand, LOCAL_AUTH,
236 "Load settings", StrRemote},
237 { "save", NULL, SaveCommand, LOCAL_AUTH,
238 "Save settings", StrNull},
239 { "set", "setup", SetCommand, LOCAL_AUTH,
240 "Set parameters", "var value"},
241 { "shell", "!", ShellCommand, LOCAL_AUTH,
242 "Run a subshell", "[sh command]"},
243 { "show", NULL, ShowCommand, LOCAL_AUTH,
244 "Show status and statictics", "var"},
245 { "term", NULL, TerminalCommand,LOCAL_AUTH,
246 "Enter to terminal mode", StrNull},
247 { "quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
248 "Quit PPP program", StrNull},
249 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
250 "Display this message", "[command]", (void *)Commands },
251 { NULL, "down", DownCommand, LOCAL_AUTH,
252 "Generate down event", StrNull},
253 { NULL, NULL, NULL },
254};
255
256extern int ReportCcpStatus();
257extern int ReportLcpStatus();
258extern int ReportIpcpStatus();
259extern int ReportProtStatus();
260extern int ReportCompress();
261extern int ShowModemStatus();
262extern int ReportHdlcStatus();
263extern int ShowMemMap();
264
265static char *LogLevelName[] = {
266 LM_PHASE, LM_CHAT, LM_LQM, LM_LCP,
267 LM_TCPIP, LM_HDLC, LM_ASYNC,
268};
269
270static int ShowDebugLevel()
271{
272 int i;
273
274 printf("%02x: ", loglevel);
275 for (i = LOG_PHASE; i < MAXLOGLEVEL; i++) {
276 if (loglevel & (1 << i))
277 printf("%s ", LogLevelName[i]);
278 }
279 printf("\n");
280 return(1);
281}
282
283static int ShowEscape()
284{
285 int code, bit;
286
287 if (EscMap[32]) {
288 for (code = 0; code < 32; code++) {
289 if (EscMap[code]) {
290 for (bit = 0; bit < 8; bit++) {
291 if (EscMap[code] & (1<<bit)) {
292 printf(" 0x%02x", (code << 3) + bit);
293 }
294 }
295 }
296 }
297 printf("\n");
298 }
299 return(1);
300}
301
302static int ShowTimeout()
303{
304 printf(" Idle Timer: %d secs LQR Timer: %d secs Retry Timer: %d secs\n",
305 VarIdleTimeout, VarLqrTimeout, VarRetryTimeout);
306 return(1);
307}
308
309static int ShowAuthKey()
310{
311 printf("AuthName = %s\n", VarAuthName);
312 printf("AuthKey = %s\n", VarAuthKey);
313 return(1);
314}
315
316static int ShowVersion()
317{
318 extern char *VarVersion[];
319 extern char *VarLocalVersion[];
320
321 printf("%s - %s \n", VarVersion, VarLocalVersion);
322 return(1);
323}
324
325static int ShowLogList()
326{
327 ListLog();
328 return(1);
329}
330
331static int ShowRedial()
332{
333 printf(" Redial Timer: ");
334
335 if (VarRedialTimeout >= 0) {
336 printf(" %d seconds, ", VarRedialTimeout);
337 }
338 else {
339 printf(" Random 0 - %d seconds, ", REDIAL_PERIOD);
340 }
341
342 if (VarDialTries)
343 printf("%d dial tries", VarDialTries);
344
345 printf("\n");
346
347 return(1);
348}
349
350
351extern int ShowIfilter(), ShowOfilter(), ShowDfilter(), ShowAfilter();
352
353struct cmdtab ShowCommands[] = {
354 { "afilter", NULL, ShowAfilter, LOCAL_AUTH,
355 "Show keep Alive filters", StrOption},
356 { "auth", NULL, ShowAuthKey, LOCAL_AUTH,
357 "Show auth name/key", StrNull},
358 { "ccp", NULL, ReportCcpStatus, LOCAL_AUTH,
359 "Show CCP status", StrNull},
360 { "compress", NULL, ReportCompress, LOCAL_AUTH,
361 "Show compression statictics", StrNull},
362 { "debug", NULL, ShowDebugLevel, LOCAL_AUTH,
363 "Show current debug level", StrNull},
364 { "dfilter", NULL, ShowDfilter, LOCAL_AUTH,
365 "Show Demand filters", StrOption},
366 { "escape", NULL, ShowEscape, LOCAL_AUTH,
367 "Show escape characters", StrNull},
368 { "hdlc", NULL, ReportHdlcStatus, LOCAL_AUTH,
369 "Show HDLC error summary", StrNull},
370 { "ifilter", NULL, ShowIfilter, LOCAL_AUTH,
371 "Show Input filters", StrOption},
372 { "ipcp", NULL, ReportIpcpStatus, LOCAL_AUTH,
373 "Show IPCP status", StrNull},
374 { "lcp", NULL, ReportLcpStatus, LOCAL_AUTH,
375 "Show LCP status", StrNull},
376 { "log", NULL, ShowLogList, LOCAL_AUTH,
377 "Show log records", StrNull},
378 { "mem", NULL, ShowMemMap, LOCAL_AUTH,
379 "Show memory map", StrNull},
380 { "modem", NULL, ShowModemStatus, LOCAL_AUTH,
381 "Show modem setups", StrNull},
382 { "ofilter", NULL, ShowOfilter, LOCAL_AUTH,
383 "Show Output filters", StrOption},
384 { "proto", NULL, ReportProtStatus, LOCAL_AUTH,
385 "Show protocol summary", StrNull},
386 { "route", NULL, ShowRoute, LOCAL_AUTH,
387 "Show routing table", StrNull},
388 { "timeout", NULL, ShowTimeout, LOCAL_AUTH,
389 "Show Idle timeout value", StrNull},
390 { "redial", NULL, ShowRedial, LOCAL_AUTH,
391 "Show Redial timeout value", StrNull},
392 { "version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH,
393 "Show version string", StrNull},
394 { "help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH,
395 "Display this message", StrNull, (void *)ShowCommands},
396 { NULL, NULL, NULL },
397};
398
399struct cmdtab *
400FindCommand(cmds, str, pmatch)
401struct cmdtab *cmds;
402char *str;
403int *pmatch;
404{
405 int nmatch = 0;
406 int len = strlen(str);
407 struct cmdtab *found = NULL;
408
409 while (cmds->func) {
410 if (cmds->name && strncmp(str, cmds->name, len) == 0) {
411 nmatch++;
412 found = cmds;
413 } else if (cmds->alias && strncmp(str, cmds->alias, len) == 0) {
414 nmatch++;
415 found = cmds;
416 }
417 cmds++;
418 }
419 *pmatch = nmatch;
420 return(found);
421}
422
423int
424FindExec(cmdlist, argc, argv)
425struct cmdtab *cmdlist;
426int argc;
427char **argv;
428{
429 struct cmdtab *cmd;
430 int val = 1;
431 int nmatch;
432
433 cmd = FindCommand(cmdlist, *argv, &nmatch);
434 if (nmatch > 1)
435 printf("Ambiguous.\n");
436 else if (cmd && ( cmd->lauth & VarLocalAuth ) )
437 val = (cmd->func)(cmd, --argc, ++argv, cmd->args);
438 else
439 printf("what?\n");
440 return(val);
441}
442
443void
444Prompt(flag)
445int flag;
446{
447 char *pconnect, *pauth;
448
449 if (!(mode & MODE_INTER))
450 return;
451
452 if (flag) printf("\n");
453
454 if ( VarLocalAuth == LOCAL_AUTH )
455 pauth = " ON ";
456 else
457 pauth = " on ";
458 if (IpcpFsm.state == ST_OPENED && phase == PHASE_NETWORK)
459 pconnect = "PPP";
460 else
461 pconnect = "ppp";
462 printf("%s%s%s> ", pconnect, pauth, VarShortHost);
463 fflush(stdout);
464}
465
466void
467DecodeCommand(buff, nb, prompt)
468char *buff;
469int nb;
470int prompt;
471{
472 char *vector[20];
473 char **argv;
474 int argc, val;
475 char *cp;
476
477 val = 1;
478 if (nb > 0) {
479 cp = buff + strcspn(buff, "\r\n");
480 if (cp)
481 *cp = '\0';
482 {
483 argc = MakeArgs(buff, &vector);
484 argv = vector;
485
486 if (argc > 0)
487 val = FindExec(Commands, argc, argv);
488 }
489 }
490 if (val && prompt)
491 Prompt(0);
492}
493
494static int
495ShowCommand(list, argc, argv)
496struct cmdtab *list;
497int argc;
498char **argv;
499{
500 int val = 1;
501
502 if (argc > 0)
503 val = FindExec(ShowCommands, argc, argv);
504 else
505 printf("Use ``show ?'' to get a list.\n");
506 return(val);
507}
508
509static int
510TerminalCommand()
511{
512 if (LcpFsm.state > ST_CLOSED) {
513 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]);
514 return(1);
515 }
516 if (!IsInteractive())
517 return(1);
518 modem = OpenModem(mode);
519 if (modem < 0) {
520 printf("failed to open modem.\n");
521 modem = 0;
522 return(1);
523 }
524 printf("Enter to terminal mode.\n");
525 printf("Type `~?' for help.\n");
526 TtyTermMode();
527 return(0);
528}
529
530static int
531QuitCommand(list, argc, argv)
532struct cmdtab *list;
533int argc;
534char **argv;
535{
536 if (mode & (MODE_DIRECT|MODE_DEDICATED|MODE_AUTO)) {
537 if (argc > 0 && (VarLocalAuth & LOCAL_AUTH)) {
538 Cleanup(EX_NORMAL);
539 } else {
540 VarLocalAuth = LOCAL_NO_AUTH;
541 close(netfd);
542 close(1);
543 dup2(2, 1); /* Have to have something here or the modem will be 1 */
544 netfd = -1;
545 mode &= ~MODE_INTER;
546 }
547 } else
548 Cleanup(EX_NORMAL);
549 return(1);
550}
551
552static int
553CloseCommand()
554{
555 LcpClose();
556 return(1);
557}
558
559static int
560DownCommand()
561{
562 LcpDown();
563 return(1);
564}
565
566static int SetModemSpeed(list, argc, argv)
567struct cmdtab *list;
568int argc;
569char **argv;
570{
571 int speed;
572
573 if (argc > 0) {
574 if (strcmp(*argv, "sync") == 0) {
575 VarSpeed = 0;
576 return(1);
577 }
578 speed = atoi(*argv);
579 if (IntToSpeed(speed) != B0) {
580 VarSpeed = speed;
581 return(1);
582 }
583 printf("invalid speed.\n");
584 }
585 return(1);
586}
587
588static int SetRedialTimeout(list, argc, argv)
589struct cmdtab *list;
590int argc;
591char **argv;
592{
593 int timeout;
594 int tries;
595
596 if (argc == 1 || argc == 2 ) {
597 if (strcasecmp(argv[0], "random") == 0) {
598 VarRedialTimeout = -1;
599 printf("Using random redial timeout.\n");
600 srandom(time(0));
601 }
602 else {
603 timeout = atoi(argv[0]);
604
605 if (timeout >= 0) {
606 VarRedialTimeout = timeout;
607 }
608 else {
609 printf("invalid redial timeout\n");
610 printf("Usage: %s %s\n", list->name, list->syntax);
611 }
612 }
613 if (argc == 2) {
614 tries = atoi(argv[1]);
615
616 if (tries >= 0) {
617 VarDialTries = tries;
618 }
619 else {
620 printf("invalid retry value\n");
621 printf("Usage: %s %s\n", list->name, list->syntax);
622 }
623 }
624 }
625 else {
626 printf("Usage: %s %s\n", list->name, list->syntax);
627 }
628 return(1);
629}
630
631static int SetModemParity(list, argc, argv)
632struct cmdtab *list;
633int argc;
634char **argv;
635{
636 int parity;
637
638 if (argc > 0) {
639 parity = ChangeParity(*argv);
640 if (parity < 0)
641 printf("Invalid parity.\n");
642 else
643 VarParity = parity;
644 }
645 return(1);
646}
647
648static int
649SetDebugLevel(list, argc, argv)
650struct cmdtab *list;
651int argc;
652char **argv;
653{
654 int level, w;
655
656 for (level = 0; argc-- > 0; argv++) {
657 if (isdigit(**argv)) {
658 w = atoi(*argv);
659 if (w < 0 || w >= MAXLOGLEVEL) {
660 printf("invalid log level.\n");
661 break;
662 } else
663 level |= (1 << w);
664 } else {
665 for (w = 0; w < MAXLOGLEVEL; w++) {
666 if (strcasecmp(*argv, LogLevelName[w]) == 0) {
667 level |= (1 << w);
668 continue;
669 }
670 }
671 }
672 }
673 loglevel = level;
674 return(1);
675}
676
677static int
678SetEscape(list, argc, argv)
679struct cmdtab *list;
680int argc;
681char **argv;
682{
683 int code;
684
685 for (code = 0; code < 33; code++)
686 EscMap[code] = 0;
687 while (argc-- > 0) {
688 sscanf(*argv++, "%x", &code);
689 code &= 0xff;
690 EscMap[code >> 3] |= (1 << (code&7));
691 EscMap[32] = 1;
692 }
693 return(1);
694}
695
696static int
697SetInitialMRU(list, argc, argv)
698struct cmdtab *list;
699int argc;
700char **argv;
701{
702 int mru;
703
704 if (argc > 0) {
705 mru = atoi(*argv);
706 if (mru < 100)
707 printf("given value is too small.\n");
708 else if (mru > MAX_MRU)
709 printf("given value is too big.\n");
710 else
711 VarMRU = mru;
712 }
713 return(1);
714}
715
716static int
717SetIdleTimeout(list, argc, argv)
718struct cmdtab *list;
719int argc;
720char **argv;
721{
722 if (argc-- > 0) {
723 VarIdleTimeout = atoi(*argv++);
724 if (argc-- > 0) {
725 VarLqrTimeout = atoi(*argv++);
726 if (VarLqrTimeout < 1)
727 VarLqrTimeout = 30;
728 if (argc > 0) {
729 VarRetryTimeout = atoi(*argv);
730 if (VarRetryTimeout < 1 || VarRetryTimeout > 10)
731 VarRetryTimeout = 3;
732 }
733 }
734 }
735 return(1);
736}
737
738struct in_addr
739GetIpAddr(cp)
740char *cp;
741{
742 struct hostent *hp;
743 struct in_addr ipaddr;
744
745 hp = gethostbyname(cp);
746 if (hp && hp->h_addrtype == AF_INET)
747 bcopy(hp->h_addr, &ipaddr, hp->h_length);
748 else if (inet_aton(cp, &ipaddr) == 0)
749 ipaddr.s_addr = 0;
750 return(ipaddr);
751}
752
753static int
754SetInterfaceAddr(list, argc, argv)
755struct cmdtab *list;
756int argc;
757char **argv;
758{
759 int width;
760
761 DefMyAddress.ipaddr.s_addr = DefHisAddress.ipaddr.s_addr = 0L;
762 if (argc > 0) {
763 ParseAddr(argc, argv++,
764 &DefMyAddress.ipaddr, &DefMyAddress.mask, &DefMyAddress.width);
765 if (--argc > 0) {
766 ParseAddr(argc, argv++,
767 &DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width);
768 if (--argc > 0) {
769 ifnetmask = GetIpAddr(*argv);
770 if (--argc > 0) {
771 ParseAddr(argc, argv++,
772 &DefTriggerAddress.ipaddr,
773 &DefTriggerAddress.mask,
774 &DefTriggerAddress.width);
775 }
776 }
777 }
778 }
779 /*
780 * For backwards compatibility, 0.0.0.0 means any address.
781 */
782 if (DefMyAddress.ipaddr.s_addr == 0) {
783 DefMyAddress.mask.s_addr = 0;
784 DefMyAddress.width = 0;
785 }
786 if (DefHisAddress.ipaddr.s_addr == 0) {
787 DefHisAddress.mask.s_addr = 0;
788 DefHisAddress.width = 0;
789 }
790
791 if ((mode & MODE_AUTO) ||
792 ((mode & MODE_DEDICATED) && dstsystem)) {
793 OsSetIpaddress(DefMyAddress.ipaddr, DefHisAddress.ipaddr, ifnetmask);
794 }
795 return(1);
796}
797
798
799#define VAR_AUTHKEY 0
800#define VAR_DIAL 1
801#define VAR_LOGIN 2
802#define VAR_AUTHNAME 3
803#define VAR_DEVICE 4
804#define VAR_ACCMAP 5
805#define VAR_PHONE 6
806
807static int
808SetVariable(list, argc, argv, param)
809struct cmdtab *list;
810int argc;
811char **argv;
812int param;
813{
814 u_long map;
815
816 if (argc > 0) {
817 switch (param) {
818 case VAR_AUTHKEY:
819 strncpy(VarAuthKey, *argv, sizeof(VarAuthKey)-1);
820 break;
821 case VAR_AUTHNAME:
822 strncpy(VarAuthName, *argv, sizeof(VarAuthName)-1);
823 break;
824 case VAR_DIAL:
825 strncpy(VarDialScript, *argv, sizeof(VarDialScript)-1);
826 break;
827 case VAR_LOGIN:
828 strncpy(VarLoginScript, *argv, sizeof(VarDialScript)-1);
829 break;
830 case VAR_DEVICE:
831 strncpy(VarDevice, *argv, sizeof(VarDevice)-1);
832 break;
833 case VAR_ACCMAP:
834 sscanf(*argv, "%x", &map);
835 VarAccmap = map;
836 break;
837 case VAR_PHONE:
838 strncpy(VarPhone, *argv, sizeof(VarPhone)-1);
839 break;
840 }
841 }
842 return(1);
843}
844
845static int SetOpenMode(list, argc, argv)
846struct cmdtab *list;
847int argc;
848char **argv;
849{
850 if (argc > 0) {
851 if (strcmp(*argv, "active") == 0)
852 VarOpenMode = OPEN_ACTIVE;
853 else if (strcmp(*argv, "passive") == 0)
854 VarOpenMode = OPEN_PASSIVE;
855 else
856 printf("Invalid mode.\n");
857 }
858 return(1);
859}
860
861static char StrChatStr[] = "chat-script";
862static char StrValue[] = "value";
863
864extern int SetIfilter(), SetOfilter(), SetDfilter(), SetAfilter();
865
866struct cmdtab SetCommands[] = {
867 { "accmap", NULL, SetVariable, LOCAL_AUTH,
868 "Set accmap value", "hex-value", (void *)VAR_ACCMAP},
869 { "afilter", NULL, SetAfilter, LOCAL_AUTH,
870 "Set keep Alive filter", "..."},
871 { "authkey", "key", SetVariable, LOCAL_AUTH,
872 "Set authentication key", "key", (void *)VAR_AUTHKEY},
873 { "authname", NULL, SetVariable, LOCAL_AUTH,
874 "Set authentication name", "name", (void *)VAR_AUTHNAME},
875 { "debug", NULL, SetDebugLevel, LOCAL_AUTH,
876 "Set debug level", StrValue},
877 { "device", "line", SetVariable, LOCAL_AUTH,
878 "Set modem device name", "device-name", (void *)VAR_DEVICE},
879 { "dfilter", NULL, SetDfilter, LOCAL_AUTH,
880 "Set demand filter", "..."},
881 { "dial", NULL, SetVariable, LOCAL_AUTH,
882 "Set dialing script", StrChatStr, (void *)VAR_DIAL},
883 { "escape", NULL, SetEscape, LOCAL_AUTH,
884 "Set escape characters", "hex-digit ..."},
885 { "ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH,
886 "Set destination address", "src-addr dst-addr netmask"},
887 { "ifilter", NULL, SetIfilter, LOCAL_AUTH,
888 "Set input filter", "..."},
889 { "login", NULL, SetVariable, LOCAL_AUTH,
890 "Set login script", StrChatStr, (void *)VAR_LOGIN },
891 { "mru", "mtu", SetInitialMRU, LOCAL_AUTH,
892 "Set Initial MRU value", StrValue },
893 { "ofilter", NULL, SetOfilter, LOCAL_AUTH,
894 "Set output filter", "..." },
895 { "openmode", NULL, SetOpenMode, LOCAL_AUTH,
896 "Set open mode", "[active|passive]"},
897 { "parity", NULL, SetModemParity, LOCAL_AUTH,
898 "Set modem parity", "[odd|even|none]"},
899 { "phone", NULL, SetVariable, LOCAL_AUTH,
900 "Set telephone number", "phone-number", (void *)VAR_PHONE },
901 { "speed", NULL, SetModemSpeed, LOCAL_AUTH,
902 "Set modem speed", "speed"},
903 { "timeout", NULL, SetIdleTimeout, LOCAL_AUTH,
904 "Set Idle timeout", StrValue},
905 { "redial", NULL, SetRedialTimeout, LOCAL_AUTH,
906 "Set Redial timeout", "value|random [dial_attempts]"},
907 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
908 "Display this message", StrNull, (void *)SetCommands},
909 { NULL, NULL, NULL },
910};
911
912static int
913SetCommand(list, argc, argv)
914struct cmdtab *list;
915int argc;
916char **argv;
917{
918 int val = 1;
919
920 if (argc > 0)
921 val = FindExec(SetCommands, argc, argv);
922 else
923 printf("Use ``set ?'' to get a list.\n");
924 return(val);
925}
926
927
928static int
929AddCommand(list, argc, argv)
930struct cmdtab *list;
931int argc;
932char **argv;
933{
934 struct in_addr dest, gateway, netmask;
935
936 if (argc == 3) {
937 dest = GetIpAddr(argv[0]);
938 netmask = GetIpAddr(argv[1]);
939 if (strcmp(argv[2], "HISADDR") == 0)
940 gateway = IpcpInfo.his_ipaddr;
941 else
942 gateway = GetIpAddr(argv[2]);
943 OsSetRoute(RTM_ADD, dest, gateway, netmask);
944 } else {
945 printf("Usage: %s %s\n", list->name, list->syntax);
946 }
947 return(1);
948}
949
950static int
951DeleteCommand(list, argc, argv)
952struct cmdtab *list;
953int argc;
954char **argv;
955{
956 struct in_addr dest, gateway, netmask;
957
958 if (argc >= 2) {
959 dest = GetIpAddr(argv[0]);
960 if (strcmp(argv[1], "HISADDR") == 0)
961 gateway = IpcpInfo.his_ipaddr;
962 else
963 gateway = GetIpAddr(argv[1]);
964 netmask.s_addr = 0;
965 if (argc == 3) {
966 if (inet_aton(argv[1], &netmask) == 0) {
967 printf("bad netmask value.\n");
968 return(1);
969 }
970 }
971 OsSetRoute(RTM_DELETE, dest, gateway, netmask);
972 } else if (argc == 1 && strcmp(argv[0], "ALL") == 0) {
973 DeleteIfRoutes(0);
974 } else {
975 printf("Usage: %s %s\n", list->name, list->syntax);
976 }
977 return(1);
978}
979
2 * PPP User command processing module
3 *
4 * Written by Toshiharu OHNO (tony-o@iij.ad.jp)
5 *
6 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
7 *
8 * Redistribution and use in source and binary forms are permitted
9 * provided that the above copyright notice and this paragraph are
10 * duplicated in all such forms and that any documentation,
11 * advertising materials, and other materials related to such
12 * distribution and use acknowledge that the software was developed
13 * by the Internet Initiative Japan, Inc. The name of the
14 * IIJ may not be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 *
20 * $Id: command.c,v 1.9 1995/09/02 17:20:50 amurai Exp $
21 *
22 */
23#include <ctype.h>
24#include <termios.h>
25#include "fsm.h"
26#include "phase.h"
27#include "lcp.h"
28#include "ipcp.h"
29#include "modem.h"
30#include "command.h"
31#include "hdlc.h"
32#include "vars.h"
33#include "auth.h"
34#include <netdb.h>
35#include <sys/socket.h>
36#include <arpa/inet.h>
37#include <net/route.h>
38#include "os.h"
39#include <paths.h>
40
41extern int MakeArgs();
42extern void Cleanup(), TtyTermMode(), PacketMode();
43extern int EnableCommand(), DisableCommand(), DisplayCommand();
44extern int AcceptCommand(), DenyCommand();
45extern int LocalAuthCommand();
46extern int LoadCommand(), SaveCommand();
47extern int ChangeParity(char *);
48extern int SelectSystem();
49extern int ShowRoute();
50extern void TtyOldMode(), TtyCommandMode();
51extern struct pppvars pppVars;
52
53struct in_addr ifnetmask;
54
55static int ShowCommand(), TerminalCommand(), QuitCommand();
56static int CloseCommand(), DialCommand(), DownCommand();
57static int SetCommand(), AddCommand(), DeleteCommand();
58static int ShellCommand();
59
60static int
61HelpCommand(list, argc, argv, plist)
62struct cmdtab *list;
63int argc;
64char **argv;
65struct cmdtab *plist;
66{
67 struct cmdtab *cmd;
68 int n;
69 char c;
70
71 if (argc > 0) {
72 for (cmd = plist; cmd->name; cmd++) {
73 if (strcmp(cmd->name, *argv) == 0 && (cmd->lauth & VarLocalAuth)) {
74 printf("%s %s\n", cmd->name, cmd->syntax);
75 return(1);
76 }
77 }
78 return(1);
79 }
80 n = 0;
81 for (cmd = plist; cmd->func; cmd++) {
82 if (cmd->name && (cmd->lauth & VarLocalAuth)) {
83 c = (n & 1)? '\n' : '\t';
84 printf(" %-8s: %-20s%c", cmd->name, cmd->helpmes, c);
85 n++;
86 }
87 }
88 if (n & 1)
89 printf("\n");
90 return(1);
91}
92
93int
94IsInteractive()
95{
96 char *mes = NULL;
97
98 if (mode & MODE_AUTO)
99 mes = "Working in auto mode.";
100 else if (mode & MODE_DIRECT)
101 mes = "Working in direct mode.";
102 else if (mode & MODE_DEDICATED)
103 mes = "Working in dedicated mode.";
104 if (mes) {
105 printf("%s\n", mes);
106 return(0);
107 }
108 return(1);
109}
110
111static int
112DialCommand(cmdlist, argc, argv)
113struct cmdtab *cmdlist;
114int argc;
115char **argv;
116{
117 int tries;
118
119 if (LcpFsm.state > ST_CLOSED) {
120 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]);
121 return(1);
122 }
123 if (!IsInteractive())
124 return(1);
125 if (argc > 0) {
126 if (SelectSystem(*argv, CONFFILE) < 0) {
127 printf("%s: not found.\n", *argv);
128 return(1);
129 }
130 }
131 tries = 0;
132 do {
133 printf("Dial attempt %u\n", ++tries);
134 modem = OpenModem(mode);
135 if (modem < 0) {
136 printf("failed to open modem.\n");
137 modem = 0;
138 break;
139 }
140 if (DialModem()) {
141 sleep(1);
142 ModemTimeout();
143 PacketMode();
144 break;
145 }
146 } while (VarDialTries == 0 || tries < VarDialTries);
147 return(1);
148}
149
150static int
151ShellCommand(cmdlist, argc, argv)
152struct cmdtab *cmdlist;
153int argc;
154char **argv;
155{
156 const char *shell;
157 pid_t shpid;
158
159 if((shell = getenv("SHELL")) == 0) {
160 shell = _PATH_BSHELL;
161 }
162
163#ifndef HAVE_SHELL_CMD_WITH_ANY_MODE
164 if( mode != MODE_INTER) {
165 fprintf(stdout,
166 "Can start an shell only in interactive mode\n");
167 return(1);
168 }
169#else
170 if(argc == 0 && !(mode & MODE_INTER)) {
171 fprintf(stderr,
172 "Can start an interactive shell only in interactive mode\n");
173 return(1);
174 }
175#endif /* HAVE_SHELL_CMD_WITH_ANY_MODE */
176
177 if((shpid = fork()) == 0) {
178 int i;
179 for(i = 3; i < getdtablesize(); i++)
180 (void)close(i);
181
182 /*
183 * We are running setuid, we should change to
184 * real user for avoiding security problems.
185 */
186 setgid( getgid() );
187 setuid( getuid() );
188
189 TtyOldMode();
190 if(argc > 0)
191 execvp(argv[0], argv);
192 else
193 execl(shell, shell, NULL);
194
195 fprintf(stdout, "exec() of %s failed\n", argc > 0? argv[0]: shell);
196 exit(255);
197 }
198 if( shpid == (pid_t)-1 ) {
199 fprintf(stdout, "Fork failed\n");
200 } else {
201 int status;
202 (void)waitpid(shpid, &status, 0);
203 }
204
205 TtyCommandMode(1);
206
207 return(0);
208}
209
210static char StrOption[] = "option ..";
211static char StrRemote[] = "[remote]";
212char StrNull[] = "";
213
214struct cmdtab Commands[] = {
215 { "accept", NULL, AcceptCommand, LOCAL_AUTH,
216 "accept option request", StrOption},
217 { "add", NULL, AddCommand, LOCAL_AUTH,
218 "add route", "dest mask gateway"},
219 { "close", NULL, CloseCommand, LOCAL_AUTH,
220 "Close connection", StrNull},
221 { "delete", NULL, DeleteCommand, LOCAL_AUTH,
222 "delete route", "dest gateway"},
223 { "deny", NULL, DenyCommand, LOCAL_AUTH,
224 "Deny option request", StrOption},
225 { "dial", "call", DialCommand, LOCAL_AUTH,
226 "Dial and login", StrRemote},
227 { "disable", NULL, DisableCommand, LOCAL_AUTH,
228 "Disable option", StrOption},
229 { "display", NULL, DisplayCommand, LOCAL_AUTH,
230 "Display option configs", StrNull},
231 { "enable", NULL, EnableCommand, LOCAL_AUTH,
232 "Enable option", StrOption},
233 { "passwd", NULL, LocalAuthCommand,LOCAL_NO_AUTH,
234 "Password for manipulation", StrOption},
235 { "load", NULL, LoadCommand, LOCAL_AUTH,
236 "Load settings", StrRemote},
237 { "save", NULL, SaveCommand, LOCAL_AUTH,
238 "Save settings", StrNull},
239 { "set", "setup", SetCommand, LOCAL_AUTH,
240 "Set parameters", "var value"},
241 { "shell", "!", ShellCommand, LOCAL_AUTH,
242 "Run a subshell", "[sh command]"},
243 { "show", NULL, ShowCommand, LOCAL_AUTH,
244 "Show status and statictics", "var"},
245 { "term", NULL, TerminalCommand,LOCAL_AUTH,
246 "Enter to terminal mode", StrNull},
247 { "quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
248 "Quit PPP program", StrNull},
249 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
250 "Display this message", "[command]", (void *)Commands },
251 { NULL, "down", DownCommand, LOCAL_AUTH,
252 "Generate down event", StrNull},
253 { NULL, NULL, NULL },
254};
255
256extern int ReportCcpStatus();
257extern int ReportLcpStatus();
258extern int ReportIpcpStatus();
259extern int ReportProtStatus();
260extern int ReportCompress();
261extern int ShowModemStatus();
262extern int ReportHdlcStatus();
263extern int ShowMemMap();
264
265static char *LogLevelName[] = {
266 LM_PHASE, LM_CHAT, LM_LQM, LM_LCP,
267 LM_TCPIP, LM_HDLC, LM_ASYNC,
268};
269
270static int ShowDebugLevel()
271{
272 int i;
273
274 printf("%02x: ", loglevel);
275 for (i = LOG_PHASE; i < MAXLOGLEVEL; i++) {
276 if (loglevel & (1 << i))
277 printf("%s ", LogLevelName[i]);
278 }
279 printf("\n");
280 return(1);
281}
282
283static int ShowEscape()
284{
285 int code, bit;
286
287 if (EscMap[32]) {
288 for (code = 0; code < 32; code++) {
289 if (EscMap[code]) {
290 for (bit = 0; bit < 8; bit++) {
291 if (EscMap[code] & (1<<bit)) {
292 printf(" 0x%02x", (code << 3) + bit);
293 }
294 }
295 }
296 }
297 printf("\n");
298 }
299 return(1);
300}
301
302static int ShowTimeout()
303{
304 printf(" Idle Timer: %d secs LQR Timer: %d secs Retry Timer: %d secs\n",
305 VarIdleTimeout, VarLqrTimeout, VarRetryTimeout);
306 return(1);
307}
308
309static int ShowAuthKey()
310{
311 printf("AuthName = %s\n", VarAuthName);
312 printf("AuthKey = %s\n", VarAuthKey);
313 return(1);
314}
315
316static int ShowVersion()
317{
318 extern char *VarVersion[];
319 extern char *VarLocalVersion[];
320
321 printf("%s - %s \n", VarVersion, VarLocalVersion);
322 return(1);
323}
324
325static int ShowLogList()
326{
327 ListLog();
328 return(1);
329}
330
331static int ShowRedial()
332{
333 printf(" Redial Timer: ");
334
335 if (VarRedialTimeout >= 0) {
336 printf(" %d seconds, ", VarRedialTimeout);
337 }
338 else {
339 printf(" Random 0 - %d seconds, ", REDIAL_PERIOD);
340 }
341
342 if (VarDialTries)
343 printf("%d dial tries", VarDialTries);
344
345 printf("\n");
346
347 return(1);
348}
349
350
351extern int ShowIfilter(), ShowOfilter(), ShowDfilter(), ShowAfilter();
352
353struct cmdtab ShowCommands[] = {
354 { "afilter", NULL, ShowAfilter, LOCAL_AUTH,
355 "Show keep Alive filters", StrOption},
356 { "auth", NULL, ShowAuthKey, LOCAL_AUTH,
357 "Show auth name/key", StrNull},
358 { "ccp", NULL, ReportCcpStatus, LOCAL_AUTH,
359 "Show CCP status", StrNull},
360 { "compress", NULL, ReportCompress, LOCAL_AUTH,
361 "Show compression statictics", StrNull},
362 { "debug", NULL, ShowDebugLevel, LOCAL_AUTH,
363 "Show current debug level", StrNull},
364 { "dfilter", NULL, ShowDfilter, LOCAL_AUTH,
365 "Show Demand filters", StrOption},
366 { "escape", NULL, ShowEscape, LOCAL_AUTH,
367 "Show escape characters", StrNull},
368 { "hdlc", NULL, ReportHdlcStatus, LOCAL_AUTH,
369 "Show HDLC error summary", StrNull},
370 { "ifilter", NULL, ShowIfilter, LOCAL_AUTH,
371 "Show Input filters", StrOption},
372 { "ipcp", NULL, ReportIpcpStatus, LOCAL_AUTH,
373 "Show IPCP status", StrNull},
374 { "lcp", NULL, ReportLcpStatus, LOCAL_AUTH,
375 "Show LCP status", StrNull},
376 { "log", NULL, ShowLogList, LOCAL_AUTH,
377 "Show log records", StrNull},
378 { "mem", NULL, ShowMemMap, LOCAL_AUTH,
379 "Show memory map", StrNull},
380 { "modem", NULL, ShowModemStatus, LOCAL_AUTH,
381 "Show modem setups", StrNull},
382 { "ofilter", NULL, ShowOfilter, LOCAL_AUTH,
383 "Show Output filters", StrOption},
384 { "proto", NULL, ReportProtStatus, LOCAL_AUTH,
385 "Show protocol summary", StrNull},
386 { "route", NULL, ShowRoute, LOCAL_AUTH,
387 "Show routing table", StrNull},
388 { "timeout", NULL, ShowTimeout, LOCAL_AUTH,
389 "Show Idle timeout value", StrNull},
390 { "redial", NULL, ShowRedial, LOCAL_AUTH,
391 "Show Redial timeout value", StrNull},
392 { "version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH,
393 "Show version string", StrNull},
394 { "help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH,
395 "Display this message", StrNull, (void *)ShowCommands},
396 { NULL, NULL, NULL },
397};
398
399struct cmdtab *
400FindCommand(cmds, str, pmatch)
401struct cmdtab *cmds;
402char *str;
403int *pmatch;
404{
405 int nmatch = 0;
406 int len = strlen(str);
407 struct cmdtab *found = NULL;
408
409 while (cmds->func) {
410 if (cmds->name && strncmp(str, cmds->name, len) == 0) {
411 nmatch++;
412 found = cmds;
413 } else if (cmds->alias && strncmp(str, cmds->alias, len) == 0) {
414 nmatch++;
415 found = cmds;
416 }
417 cmds++;
418 }
419 *pmatch = nmatch;
420 return(found);
421}
422
423int
424FindExec(cmdlist, argc, argv)
425struct cmdtab *cmdlist;
426int argc;
427char **argv;
428{
429 struct cmdtab *cmd;
430 int val = 1;
431 int nmatch;
432
433 cmd = FindCommand(cmdlist, *argv, &nmatch);
434 if (nmatch > 1)
435 printf("Ambiguous.\n");
436 else if (cmd && ( cmd->lauth & VarLocalAuth ) )
437 val = (cmd->func)(cmd, --argc, ++argv, cmd->args);
438 else
439 printf("what?\n");
440 return(val);
441}
442
443void
444Prompt(flag)
445int flag;
446{
447 char *pconnect, *pauth;
448
449 if (!(mode & MODE_INTER))
450 return;
451
452 if (flag) printf("\n");
453
454 if ( VarLocalAuth == LOCAL_AUTH )
455 pauth = " ON ";
456 else
457 pauth = " on ";
458 if (IpcpFsm.state == ST_OPENED && phase == PHASE_NETWORK)
459 pconnect = "PPP";
460 else
461 pconnect = "ppp";
462 printf("%s%s%s> ", pconnect, pauth, VarShortHost);
463 fflush(stdout);
464}
465
466void
467DecodeCommand(buff, nb, prompt)
468char *buff;
469int nb;
470int prompt;
471{
472 char *vector[20];
473 char **argv;
474 int argc, val;
475 char *cp;
476
477 val = 1;
478 if (nb > 0) {
479 cp = buff + strcspn(buff, "\r\n");
480 if (cp)
481 *cp = '\0';
482 {
483 argc = MakeArgs(buff, &vector);
484 argv = vector;
485
486 if (argc > 0)
487 val = FindExec(Commands, argc, argv);
488 }
489 }
490 if (val && prompt)
491 Prompt(0);
492}
493
494static int
495ShowCommand(list, argc, argv)
496struct cmdtab *list;
497int argc;
498char **argv;
499{
500 int val = 1;
501
502 if (argc > 0)
503 val = FindExec(ShowCommands, argc, argv);
504 else
505 printf("Use ``show ?'' to get a list.\n");
506 return(val);
507}
508
509static int
510TerminalCommand()
511{
512 if (LcpFsm.state > ST_CLOSED) {
513 printf("LCP state is [%s]\n", StateNames[LcpFsm.state]);
514 return(1);
515 }
516 if (!IsInteractive())
517 return(1);
518 modem = OpenModem(mode);
519 if (modem < 0) {
520 printf("failed to open modem.\n");
521 modem = 0;
522 return(1);
523 }
524 printf("Enter to terminal mode.\n");
525 printf("Type `~?' for help.\n");
526 TtyTermMode();
527 return(0);
528}
529
530static int
531QuitCommand(list, argc, argv)
532struct cmdtab *list;
533int argc;
534char **argv;
535{
536 if (mode & (MODE_DIRECT|MODE_DEDICATED|MODE_AUTO)) {
537 if (argc > 0 && (VarLocalAuth & LOCAL_AUTH)) {
538 Cleanup(EX_NORMAL);
539 } else {
540 VarLocalAuth = LOCAL_NO_AUTH;
541 close(netfd);
542 close(1);
543 dup2(2, 1); /* Have to have something here or the modem will be 1 */
544 netfd = -1;
545 mode &= ~MODE_INTER;
546 }
547 } else
548 Cleanup(EX_NORMAL);
549 return(1);
550}
551
552static int
553CloseCommand()
554{
555 LcpClose();
556 return(1);
557}
558
559static int
560DownCommand()
561{
562 LcpDown();
563 return(1);
564}
565
566static int SetModemSpeed(list, argc, argv)
567struct cmdtab *list;
568int argc;
569char **argv;
570{
571 int speed;
572
573 if (argc > 0) {
574 if (strcmp(*argv, "sync") == 0) {
575 VarSpeed = 0;
576 return(1);
577 }
578 speed = atoi(*argv);
579 if (IntToSpeed(speed) != B0) {
580 VarSpeed = speed;
581 return(1);
582 }
583 printf("invalid speed.\n");
584 }
585 return(1);
586}
587
588static int SetRedialTimeout(list, argc, argv)
589struct cmdtab *list;
590int argc;
591char **argv;
592{
593 int timeout;
594 int tries;
595
596 if (argc == 1 || argc == 2 ) {
597 if (strcasecmp(argv[0], "random") == 0) {
598 VarRedialTimeout = -1;
599 printf("Using random redial timeout.\n");
600 srandom(time(0));
601 }
602 else {
603 timeout = atoi(argv[0]);
604
605 if (timeout >= 0) {
606 VarRedialTimeout = timeout;
607 }
608 else {
609 printf("invalid redial timeout\n");
610 printf("Usage: %s %s\n", list->name, list->syntax);
611 }
612 }
613 if (argc == 2) {
614 tries = atoi(argv[1]);
615
616 if (tries >= 0) {
617 VarDialTries = tries;
618 }
619 else {
620 printf("invalid retry value\n");
621 printf("Usage: %s %s\n", list->name, list->syntax);
622 }
623 }
624 }
625 else {
626 printf("Usage: %s %s\n", list->name, list->syntax);
627 }
628 return(1);
629}
630
631static int SetModemParity(list, argc, argv)
632struct cmdtab *list;
633int argc;
634char **argv;
635{
636 int parity;
637
638 if (argc > 0) {
639 parity = ChangeParity(*argv);
640 if (parity < 0)
641 printf("Invalid parity.\n");
642 else
643 VarParity = parity;
644 }
645 return(1);
646}
647
648static int
649SetDebugLevel(list, argc, argv)
650struct cmdtab *list;
651int argc;
652char **argv;
653{
654 int level, w;
655
656 for (level = 0; argc-- > 0; argv++) {
657 if (isdigit(**argv)) {
658 w = atoi(*argv);
659 if (w < 0 || w >= MAXLOGLEVEL) {
660 printf("invalid log level.\n");
661 break;
662 } else
663 level |= (1 << w);
664 } else {
665 for (w = 0; w < MAXLOGLEVEL; w++) {
666 if (strcasecmp(*argv, LogLevelName[w]) == 0) {
667 level |= (1 << w);
668 continue;
669 }
670 }
671 }
672 }
673 loglevel = level;
674 return(1);
675}
676
677static int
678SetEscape(list, argc, argv)
679struct cmdtab *list;
680int argc;
681char **argv;
682{
683 int code;
684
685 for (code = 0; code < 33; code++)
686 EscMap[code] = 0;
687 while (argc-- > 0) {
688 sscanf(*argv++, "%x", &code);
689 code &= 0xff;
690 EscMap[code >> 3] |= (1 << (code&7));
691 EscMap[32] = 1;
692 }
693 return(1);
694}
695
696static int
697SetInitialMRU(list, argc, argv)
698struct cmdtab *list;
699int argc;
700char **argv;
701{
702 int mru;
703
704 if (argc > 0) {
705 mru = atoi(*argv);
706 if (mru < 100)
707 printf("given value is too small.\n");
708 else if (mru > MAX_MRU)
709 printf("given value is too big.\n");
710 else
711 VarMRU = mru;
712 }
713 return(1);
714}
715
716static int
717SetIdleTimeout(list, argc, argv)
718struct cmdtab *list;
719int argc;
720char **argv;
721{
722 if (argc-- > 0) {
723 VarIdleTimeout = atoi(*argv++);
724 if (argc-- > 0) {
725 VarLqrTimeout = atoi(*argv++);
726 if (VarLqrTimeout < 1)
727 VarLqrTimeout = 30;
728 if (argc > 0) {
729 VarRetryTimeout = atoi(*argv);
730 if (VarRetryTimeout < 1 || VarRetryTimeout > 10)
731 VarRetryTimeout = 3;
732 }
733 }
734 }
735 return(1);
736}
737
738struct in_addr
739GetIpAddr(cp)
740char *cp;
741{
742 struct hostent *hp;
743 struct in_addr ipaddr;
744
745 hp = gethostbyname(cp);
746 if (hp && hp->h_addrtype == AF_INET)
747 bcopy(hp->h_addr, &ipaddr, hp->h_length);
748 else if (inet_aton(cp, &ipaddr) == 0)
749 ipaddr.s_addr = 0;
750 return(ipaddr);
751}
752
753static int
754SetInterfaceAddr(list, argc, argv)
755struct cmdtab *list;
756int argc;
757char **argv;
758{
759 int width;
760
761 DefMyAddress.ipaddr.s_addr = DefHisAddress.ipaddr.s_addr = 0L;
762 if (argc > 0) {
763 ParseAddr(argc, argv++,
764 &DefMyAddress.ipaddr, &DefMyAddress.mask, &DefMyAddress.width);
765 if (--argc > 0) {
766 ParseAddr(argc, argv++,
767 &DefHisAddress.ipaddr, &DefHisAddress.mask, &DefHisAddress.width);
768 if (--argc > 0) {
769 ifnetmask = GetIpAddr(*argv);
770 if (--argc > 0) {
771 ParseAddr(argc, argv++,
772 &DefTriggerAddress.ipaddr,
773 &DefTriggerAddress.mask,
774 &DefTriggerAddress.width);
775 }
776 }
777 }
778 }
779 /*
780 * For backwards compatibility, 0.0.0.0 means any address.
781 */
782 if (DefMyAddress.ipaddr.s_addr == 0) {
783 DefMyAddress.mask.s_addr = 0;
784 DefMyAddress.width = 0;
785 }
786 if (DefHisAddress.ipaddr.s_addr == 0) {
787 DefHisAddress.mask.s_addr = 0;
788 DefHisAddress.width = 0;
789 }
790
791 if ((mode & MODE_AUTO) ||
792 ((mode & MODE_DEDICATED) && dstsystem)) {
793 OsSetIpaddress(DefMyAddress.ipaddr, DefHisAddress.ipaddr, ifnetmask);
794 }
795 return(1);
796}
797
798
799#define VAR_AUTHKEY 0
800#define VAR_DIAL 1
801#define VAR_LOGIN 2
802#define VAR_AUTHNAME 3
803#define VAR_DEVICE 4
804#define VAR_ACCMAP 5
805#define VAR_PHONE 6
806
807static int
808SetVariable(list, argc, argv, param)
809struct cmdtab *list;
810int argc;
811char **argv;
812int param;
813{
814 u_long map;
815
816 if (argc > 0) {
817 switch (param) {
818 case VAR_AUTHKEY:
819 strncpy(VarAuthKey, *argv, sizeof(VarAuthKey)-1);
820 break;
821 case VAR_AUTHNAME:
822 strncpy(VarAuthName, *argv, sizeof(VarAuthName)-1);
823 break;
824 case VAR_DIAL:
825 strncpy(VarDialScript, *argv, sizeof(VarDialScript)-1);
826 break;
827 case VAR_LOGIN:
828 strncpy(VarLoginScript, *argv, sizeof(VarDialScript)-1);
829 break;
830 case VAR_DEVICE:
831 strncpy(VarDevice, *argv, sizeof(VarDevice)-1);
832 break;
833 case VAR_ACCMAP:
834 sscanf(*argv, "%x", &map);
835 VarAccmap = map;
836 break;
837 case VAR_PHONE:
838 strncpy(VarPhone, *argv, sizeof(VarPhone)-1);
839 break;
840 }
841 }
842 return(1);
843}
844
845static int SetOpenMode(list, argc, argv)
846struct cmdtab *list;
847int argc;
848char **argv;
849{
850 if (argc > 0) {
851 if (strcmp(*argv, "active") == 0)
852 VarOpenMode = OPEN_ACTIVE;
853 else if (strcmp(*argv, "passive") == 0)
854 VarOpenMode = OPEN_PASSIVE;
855 else
856 printf("Invalid mode.\n");
857 }
858 return(1);
859}
860
861static char StrChatStr[] = "chat-script";
862static char StrValue[] = "value";
863
864extern int SetIfilter(), SetOfilter(), SetDfilter(), SetAfilter();
865
866struct cmdtab SetCommands[] = {
867 { "accmap", NULL, SetVariable, LOCAL_AUTH,
868 "Set accmap value", "hex-value", (void *)VAR_ACCMAP},
869 { "afilter", NULL, SetAfilter, LOCAL_AUTH,
870 "Set keep Alive filter", "..."},
871 { "authkey", "key", SetVariable, LOCAL_AUTH,
872 "Set authentication key", "key", (void *)VAR_AUTHKEY},
873 { "authname", NULL, SetVariable, LOCAL_AUTH,
874 "Set authentication name", "name", (void *)VAR_AUTHNAME},
875 { "debug", NULL, SetDebugLevel, LOCAL_AUTH,
876 "Set debug level", StrValue},
877 { "device", "line", SetVariable, LOCAL_AUTH,
878 "Set modem device name", "device-name", (void *)VAR_DEVICE},
879 { "dfilter", NULL, SetDfilter, LOCAL_AUTH,
880 "Set demand filter", "..."},
881 { "dial", NULL, SetVariable, LOCAL_AUTH,
882 "Set dialing script", StrChatStr, (void *)VAR_DIAL},
883 { "escape", NULL, SetEscape, LOCAL_AUTH,
884 "Set escape characters", "hex-digit ..."},
885 { "ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH,
886 "Set destination address", "src-addr dst-addr netmask"},
887 { "ifilter", NULL, SetIfilter, LOCAL_AUTH,
888 "Set input filter", "..."},
889 { "login", NULL, SetVariable, LOCAL_AUTH,
890 "Set login script", StrChatStr, (void *)VAR_LOGIN },
891 { "mru", "mtu", SetInitialMRU, LOCAL_AUTH,
892 "Set Initial MRU value", StrValue },
893 { "ofilter", NULL, SetOfilter, LOCAL_AUTH,
894 "Set output filter", "..." },
895 { "openmode", NULL, SetOpenMode, LOCAL_AUTH,
896 "Set open mode", "[active|passive]"},
897 { "parity", NULL, SetModemParity, LOCAL_AUTH,
898 "Set modem parity", "[odd|even|none]"},
899 { "phone", NULL, SetVariable, LOCAL_AUTH,
900 "Set telephone number", "phone-number", (void *)VAR_PHONE },
901 { "speed", NULL, SetModemSpeed, LOCAL_AUTH,
902 "Set modem speed", "speed"},
903 { "timeout", NULL, SetIdleTimeout, LOCAL_AUTH,
904 "Set Idle timeout", StrValue},
905 { "redial", NULL, SetRedialTimeout, LOCAL_AUTH,
906 "Set Redial timeout", "value|random [dial_attempts]"},
907 { "help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
908 "Display this message", StrNull, (void *)SetCommands},
909 { NULL, NULL, NULL },
910};
911
912static int
913SetCommand(list, argc, argv)
914struct cmdtab *list;
915int argc;
916char **argv;
917{
918 int val = 1;
919
920 if (argc > 0)
921 val = FindExec(SetCommands, argc, argv);
922 else
923 printf("Use ``set ?'' to get a list.\n");
924 return(val);
925}
926
927
928static int
929AddCommand(list, argc, argv)
930struct cmdtab *list;
931int argc;
932char **argv;
933{
934 struct in_addr dest, gateway, netmask;
935
936 if (argc == 3) {
937 dest = GetIpAddr(argv[0]);
938 netmask = GetIpAddr(argv[1]);
939 if (strcmp(argv[2], "HISADDR") == 0)
940 gateway = IpcpInfo.his_ipaddr;
941 else
942 gateway = GetIpAddr(argv[2]);
943 OsSetRoute(RTM_ADD, dest, gateway, netmask);
944 } else {
945 printf("Usage: %s %s\n", list->name, list->syntax);
946 }
947 return(1);
948}
949
950static int
951DeleteCommand(list, argc, argv)
952struct cmdtab *list;
953int argc;
954char **argv;
955{
956 struct in_addr dest, gateway, netmask;
957
958 if (argc >= 2) {
959 dest = GetIpAddr(argv[0]);
960 if (strcmp(argv[1], "HISADDR") == 0)
961 gateway = IpcpInfo.his_ipaddr;
962 else
963 gateway = GetIpAddr(argv[1]);
964 netmask.s_addr = 0;
965 if (argc == 3) {
966 if (inet_aton(argv[1], &netmask) == 0) {
967 printf("bad netmask value.\n");
968 return(1);
969 }
970 }
971 OsSetRoute(RTM_DELETE, dest, gateway, netmask);
972 } else if (argc == 1 && strcmp(argv[0], "ALL") == 0) {
973 DeleteIfRoutes(0);
974 } else {
975 printf("Usage: %s %s\n", list->name, list->syntax);
976 }
977 return(1);
978}
979