Annotation of OpenXM/src/kxx/oxmain.c, Revision 1.20
1.20 ! takayama 1: /* $OpenXM: OpenXM/src/kxx/oxmain.c,v 1.19 2004/09/17 08:46:10 takayama Exp $ */
1.1 maekawa 2: /* nullserver01 */
3: #include <stdio.h>
1.4 takayama 4: #include <fcntl.h>
1.10 takayama 5: #include <unistd.h>
1.1 maekawa 6: #include <sys/types.h>
7: #include <sys/socket.h>
8: #include <sys/time.h>
9: #include <netinet/in.h>
10: #include <netdb.h>
11: #include <signal.h>
12: #include <setjmp.h>
1.14 takayama 13: #include <stdlib.h>
1.1 maekawa 14: /* -lnsl -lsocket /usr/ucblib/libucb.a */
15: #include "ox_kan.h"
16: #include "serversm.h"
17:
1.4 takayama 18: #define SERVERNAME "ox_sm1"
1.1 maekawa 19:
1.14 takayama 20: extern char **environ;
1.1 maekawa 21: int OxCritical = 0;
22: int OxInterruptFlag = 0;
1.12 takayama 23: int OxTerminateMode = 0;
1.1 maekawa 24:
25: int SerialCurrentControl;
26:
27: int MyServerPid;
1.4 takayama 28: #define SERVERNAME_SIZE 4096
29: char ServerName[SERVERNAME_SIZE];
1.1 maekawa 30: int PacketMonitor = 0;
31: int Quiet = 0;
32:
33: int LocalMode = 1;
34: int NotifyPortnumber = 0;
1.4 takayama 35: int Do_not_use_control_stream_to_tell_no_server = 1;
36: static void errorToStartEngine(void);
37: static int findOxServer(char *server);
38: static void couldNotFind(char *s);
1.8 takayama 39: /* gcc -v -c hoge.c */
1.15 takayama 40:
41: void *sGC_malloc(int n) {
42: return (void *)malloc(n);
43: }
1.1 maekawa 44:
45: main(int argc, char *argv[]) {
46: int fd;
47: int size;
48: char sname[1024];
49: int tmp[1];
50: char *buf;
51: int i;
52: int fdControl = -1; int portControl = 1200;
53: int fdStream = -1; int portStream = 1300;
54: int reverse = 0;
55: extern int OpenedSocket;
56: char portfile[1024];
1.12 takayama 57: char *pass = NULL;
1.18 takayama 58: char *passControl = NULL;
59: char *passData = NULL;
1.4 takayama 60: int result;
1.9 takayama 61: int sleepingTime = 0;
1.12 takayama 62: extern int OxTerminateMode;
1.1 maekawa 63:
1.17 takayama 64: signal(SIGHUP,SIG_IGN); /* ignore x of xterm */
1.1 maekawa 65: strcpy(sname,"localhost");
66: strcpy(ServerName,SERVERNAME);
67: i = 1;
1.2 takayama 68: if (argc == 1) {
69: oxmainUsage();
1.12 takayama 70: exit(10);
1.2 takayama 71: }
1.1 maekawa 72: while (i<argc) {
73: if (strcmp(argv[i],"-host") == 0) {
74: i++;
75: if (i<argc) strcpy(sname,argv[i]);
76: }else if (strcmp(argv[i],"-data")==0) {
77: i++;
78: if (i<argc) sscanf(argv[i],"%d",&portStream);
79: }else if (strcmp(argv[i],"-control")==0) {
80: i++;
81: if (i<argc) sscanf(argv[i],"%d",&portControl);
82: }else if (strcmp(argv[i],"-ox") == 0) {
83: i++;
84: if (i<argc) strcpy(ServerName,argv[i]);
85: }else if (strcmp(argv[i],"-monitor") == 0) {
86: PacketMonitor = 1;
87: }else if (strcmp(argv[i],"-insecure") == 0) {
88: LocalMode = 0;
89: }else if (strcmp(argv[i],"-reverse") == 0) {
90: reverse = 1;
1.12 takayama 91: }else if (strcmp(argv[i],"-finish") == 0) {
92: OxTerminateMode = 1;
1.1 maekawa 93: }else if (strcmp(argv[i],"-portfile") == 0) {
94: i++;
95: if (i<argc) {
1.7 takayama 96: sscanf(argv[i],"%s",portfile);
97: portControl = 0;
98: portStream = 0;
99: NotifyPortnumber = 1;
1.1 maekawa 100: }
101: }else if (strcmp(argv[i],"-pass") == 0) {
102: i++;
103: if (i<argc) {
1.7 takayama 104: pass = argv[i];
1.1 maekawa 105: }
1.18 takayama 106: }else if (strcmp(argv[i],"-passData") == 0) {
107: i++;
108: if (i<argc) {
109: passData = argv[i];
110: }
111: }else if (strcmp(argv[i],"-passControl") == 0) {
112: i++;
113: if (i<argc) {
114: passControl = argv[i];
115: }
1.9 takayama 116: }else if (strcmp(argv[i],"-wait") == 0) {
117: i++;
118: if (i<argc) {
119: sscanf(argv[i],"%d",&sleepingTime);
120: }
1.1 maekawa 121: }else {
122: fprintf(stderr,"Unknown option %s.\n",argv[i]);
123: oxmainUsage(); exit(10);
124: }
125: i++;
126: }
127:
1.4 takayama 128: if (Do_not_use_control_stream_to_tell_no_server) {
1.7 takayama 129: if (findOxServer(ServerName) < 0) {
130: fprintf(stderr,"Sleeping five seconds...\n");
131: sleep(5);
132: exit(-1);
133: }
1.9 takayama 134: }
135:
136: if (sleepingTime) {
137: fprintf(stderr,"Waiting to connect for %d seconds...\n",sleepingTime);
138: sleep(sleepingTime);
139: fprintf(stderr,"\nTrying to connect\n");
1.4 takayama 140: }
141:
1.18 takayama 142: if ((pass != NULL) && (passData == NULL)) {
143: passData = pass;
144: }
145: if ((pass != NULL) && (passControl == NULL)) {
146: passControl = pass;
147: }
148:
1.19 takayama 149: /* Decrypt passControl and passData, here. Lookup cryptmethod. */
150:
1.1 maekawa 151: if (reverse) {
152: /* The order is very important. */
1.18 takayama 153: fdControl = socketConnectWithPass(sname,portControl,passControl);
154: fdStream = socketConnectWithPass(sname,portStream,passData);
1.1 maekawa 155:
156: fprintf(stderr,"Connected: control = %d, data = %d.\n",fdControl,fdStream);
1.7 takayama 157: result = 0;
1.5 takayama 158:
159:
1.20 ! takayama 160: if ((fdControl < 0) || (fdStream < 0)) {
! 161: fprintf(stderr,"Waiting for 10 seconds to show an error.\n");
! 162: sleep(10);
! 163: }
! 164:
1.1 maekawa 165: if (portControl != -1) {
166: MyServerPid = fork();
167: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 168: else result=childServerMain(fdControl,fdStream);
1.1 maekawa 169: }else{
1.4 takayama 170: result=childServerMain(fdControl,fdStream);
1.1 maekawa 171: }
1.4 takayama 172: /* This line will be never executed in case of success */
1.7 takayama 173: if (result < 0 ) {
174: errorToStartEngine();
175: }
1.1 maekawa 176: }
177:
178: /* non-reverse case. */
179: fprintf(stderr,"Hostname is %s \n",sname);
180: fprintf(stderr,"Port for data (-data) = %d \n",portStream);
181: fprintf(stderr,"Port for control message (-control) = %d \n",portControl);
182: fflush(NULL);
183:
184:
185: if (LocalMode) {
186: if (portControl != -1) {
187: fdControl = socketOpen(sname,portControl);
188: portControl = OpenedSocket;
189: if (NotifyPortnumber) {
1.7 takayama 190: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 191: }
192: fdControl = socketAcceptLocal(fdControl);
193: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
194: }
195: if (portStream != -1) {
196: fdStream = socketOpen(sname,portStream);
197: portStream = OpenedSocket;
198: if (NotifyPortnumber) {
1.7 takayama 199: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 200: }
201: fdStream = socketAcceptLocal(fdStream);
202: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
203: }
204: }else{
205: if (portControl != -1) {
206: fdControl = socketOpen(sname,portControl);
207: portControl = OpenedSocket;
208: if (NotifyPortnumber) {
1.7 takayama 209: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 210: }
211: fdControl = socketAccept(fdControl);
212: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
213: }
214: if (portStream != -1) {
215: fdStream = socketOpen(sname,portStream);
216: portStream = OpenedSocket;
217: if (NotifyPortnumber) {
1.7 takayama 218: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 219: }
220: fdStream = socketAccept(fdStream);
221: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
222: }
223: }
224:
1.19 takayama 225: if (passControl != NULL) {
226: char *s; int mm;
227: fprintf(stderr,"passControl\n");
228: mm = strlen(passControl);
229: s = (char *) malloc(mm+1);
230: if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
231: if (read(fdControl,s,mm+1) < 0) {
232: fprintf(stderr,"Read error to read passControl\n"); sleep(5); exit(1);
233: }
234: s[mm] = 0;
235: if (strcmp(s,passControl) != 0) {
236: fprintf(stderr,"s=%s and passControl=%s do not match.\n",s,passControl); sleep(5); exit(1);
237: }
238: free(s);
239: }
240: if (passData != NULL) {
241: char *s; int mm;
242: mm = strlen(passData);
243: fprintf(stderr,"passData\n");
244: s = (char *) malloc(mm+1);
245: if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
246: if (read(fdStream,s,mm+1) < 0) {
247: fprintf(stderr,"Read error to read passData\n");
248: errorToStartEngine();
249: }
250: if (strcmp(s,passData) != 0) {
251: fprintf(stderr,"s=%s and passData=%s do not match.\n",s,passData);
252: errorToStartEngine();
253: }
254: free(s);
255: }
1.1 maekawa 256:
1.20 ! takayama 257: if ((fdControl < 0) || (fdStream < 0)) {
! 258: fprintf(stderr,"Waiting for 10 seconds to show an error.\n");
! 259: sleep(10);
! 260: }
! 261:
! 262:
1.4 takayama 263: result = 0;
1.1 maekawa 264: if (portControl != -1) {
265: MyServerPid = fork();
266: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 267: else result = childServerMain(fdControl,fdStream);
1.1 maekawa 268: }else{
1.4 takayama 269: result = childServerMain(fdControl,fdStream);
1.1 maekawa 270: }
1.4 takayama 271: if (result < 0) errorToStartEngine();
272: }
1.1 maekawa 273:
1.4 takayama 274: static void errorToStartEngine(void) {
275: fprintf(stderr,"Failed to start the engine. Childing process is terminating.\n");
276: /* You have to tell to the control server that there is no engine.
1.7 takayama 277: And, the control server must tell the client that there is no
278: engine.
279: This part has not yet been implemented.
280: If you implement this, set Do_not_use_control_stream_to_tell_no_server to
281: zero.
282: */
1.20 ! takayama 283: sleep(10);
1.4 takayama 284: exit(-1);
1.1 maekawa 285: }
286:
287: oxmainUsage() {
288: fprintf(stderr,"Usage: \n");
289: fprintf(stderr," ox [-ox serverprogram -host name -data portnum -control portnum -monitor]\n");
1.18 takayama 290: fprintf(stderr," [-insecure -portfile fname -reverse -passControl xxxyyyzzz -passData pppqqqrrr]");
1.12 takayama 291: fprintf(stderr," [-finish]");
1.1 maekawa 292: fprintf(stderr,"\n");
1.2 takayama 293: fprintf(stderr,"-reverse: ox server connects to the client.\n");
1.18 takayama 294: fprintf(stderr," The client must give a one time password to ox server to connect to the client with -pass* option.\n");
1.2 takayama 295: fprintf(stderr," The one time password can be seen by ps command, so you must not use this one time password system on an untrustful host.\n");
296: fprintf(stderr," The one time password should be sent by a safe communication line like ssh and the ox server should be started by ssh. Do not use rsh\n");
1.18 takayama 297: fprintf(stderr," (The option -pass is obsolete.)\n");
1.2 takayama 298: fprintf(stderr," If -reverse is not given, the client connect to the ox server\n");
299: fprintf(stderr," See OpenXM/src/SSkan/Doc/ox.sm1, /sm1connectr\n");
300: fprintf(stderr,"-insecure : \n");
301: fprintf(stderr," If you access to the server from a localhost, you do not need one time password. However, if you access outside of the localhost, a one time password is required. To turn off this restriction, -insecure option is used.\n");
1.4 takayama 302: fprintf(stderr,"\n");
303: fprintf(stderr,"If ox fails to find the serverprogram, it tries to look for it in /usr/local/OpenXM/bin and $OpenXM_HOME/bin.\n");
304: fprintf(stderr,"\n");
1.2 takayama 305: fprintf(stderr,"Example 1:\n");
1.3 takayama 306: fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1 -host dc1.math.kobe-u.ac.jp -insecure -control 1200 -data 1300\n");
1.2 takayama 307: fprintf(stderr,"(client): sm1\n ");
308: fprintf(stderr," (ox.sm1) run ; \n");
1.1 maekawa 309: fprintf(stderr," sm1>[(dc1.math.kobe-u.ac.jp) 1300 1200] oxconnect /ox.ccc set\n");
1.2 takayama 310: fprintf(stderr,"Example 2:\n");
311: fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1\n");
312: fprintf(stderr,"(client): dc1%% sm1\n ");
313: fprintf(stderr," (ox.sm1) run ; \n");
314: fprintf(stderr," sm1>[(localhost) 1300 1200] oxconnect /ox.ccc set\n");
1.1 maekawa 315: fprintf(stderr,"\n");
316: }
317:
318: parentServerMain(int fdControl, int fdStream) {
319: int id;
320: int mtag;
321: int size;
322: int n;
323: int r;
324: int message = 1;
325: int controlByteOrder;
1.12 takayama 326: extern OxTerminateMode;
1.1 maekawa 327: extern void myServerExit();
328:
1.12 takayama 329: if (OxTerminateMode) {
330: /*
331: OxTerminateMode cannot be used if you run ox by xterm -exec ox ...
332: */
333: if (fork()) {
334: close(fdControl); close(fdStream);
335: /* Parent */
336: exit(0); /*Tell the caller that launching is successfully finished.*/
337: }
338: }
339:
1.13 takayama 340: controlByteOrder = oxTellMyByteOrder(fdControl,fdControl);
1.1 maekawa 341: /* Set the network byte order. */
342: fprintf(stderr,"controlByteOrder=%x\n",controlByteOrder);
343:
344:
345: signal(SIGINT,myServerExit);
346: while(1) {
347: mtag = oxfdGetOXheader(fdControl,&SerialCurrentControl);
348: /* get the message_tag */
349: /* message_body */
350: id = oxfdGetInt32(fdControl); /* get the function_id */
351: if (message) {printf("\n[control] control function_id is %d\n",id);}
352: switch( id ) {
353: case SM_control_kill:
354: if (message) printf("[control] control_kill\n");
355: oxSendResultOfControl(fdControl);
356: sleep(2);
357: myServerExit();
358: break;
359: case SM_control_reset_connection:
360: if (message) printf("[control] control_reset_connection.\n");
361: if (message) printf("Sending the SIGUSR1 signal to %d: ",MyServerPid);
362: r=kill(MyServerPid,SIGUSR1);
363: if (message) printf("Result = %d\n",r);
364: fflush(NULL);
1.7 takayama 365: /* oxSendResultOfControlInt32(fdControl,0); */
1.1 maekawa 366: break;
367: default:
368: fprintf(stderr,"[control] Unknown control message.\n");
369: fprintf(stderr,"Shutdown the server.");
370: myServerExit();
371: break;
372: }
373: }
374: }
375:
376: void myServerExit() {
377: printf("Sending the kill signal to the child.\n");
378: kill(MyServerPid,SIGKILL);
1.12 takayama 379: exit(0);
1.1 maekawa 380: }
381:
382: childServerMain(int fdControl, int fdStream) {
383: int i;
384: close(fdControl); /* close(0); dup(fdStream); */
385: dup2(fdStream,3);
386: dup2(fdStream,4);
1.4 takayama 387: /*close(0);
1.7 takayama 388: #include <sys/param.h>
389: for (i=5; i<NOFILE; i++) close(i);
390: */
1.4 takayama 391: if (!Do_not_use_control_stream_to_tell_no_server) {
1.7 takayama 392: if (findOxServer(ServerName) < 0) {
393: return(-1);
394: }
1.4 takayama 395: }
1.5 takayama 396: fprintf(stderr,"childServerMain: Starting the server %s\n",ServerName); fflush(NULL);
1.14 takayama 397:
398: /*
399: {
400: int i;
401: i=0;
402: while (environ[i] != NULL) {
403: fprintf(stderr,"%s ",environ[i++]);
404: }
405: fprintf(stderr,"\n");
406: }
407: */
408: /* bug: xterm of potato does not seem to pass the LD_LIBRARY_PATH.
409: So, the new gc does not work.
410: it is an workaround for OpenXM */
411: if (getenv("LD_LIBRARY_PATH") == (char *)NULL) {
412: char *s,*o;
413: fprintf(stderr,"Hmm... LD_LIBRARY_PATH does not seem to be set.\n");
414: o = getenv("OpenXM_HOME");
415: if (o == NULL) {
416: fprintf(stderr,"Giving up to set the LD_LIBRARY_PATH variable.\n");
417: }else{
418: s = (char *)malloc(strlen(o)+64);
419: sprintf(s,"LD_LIBRARY_PATH=%s/lib",o);
420: putenv(s);
421: }
422: }
423:
1.1 maekawa 424: if (PacketMonitor) {
1.14 takayama 425: if (execle(ServerName,ServerName,"-monitor",NULL,environ)) {
1.1 maekawa 426: fprintf(stderr,"%s cannot be executed with -monitor.\n",ServerName);
1.7 takayama 427: fflush(NULL);
428: return(-1);
1.1 maekawa 429: }
430: }else {
1.14 takayama 431: if (execle(ServerName,ServerName,NULL,environ)) {
1.1 maekawa 432: fprintf(stderr,"%s cannot be executed.\n",ServerName);
1.7 takayama 433: fflush(NULL);
434: return(-1);
1.1 maekawa 435: }
436: }
1.4 takayama 437: /* never reached. */
1.1 maekawa 438: }
439:
440:
441: /* These are dummy. It is defined in stackmachine.c */
442: unlockCtrlCForOx() { ; }
443: restoreLockCtrlCForOx() { ; }
444:
1.4 takayama 445: static int findOxServer(char *server) {
446: char *p;
447: char *p2;
448: if (strlen(server) == 0) return(-1);
1.10 takayama 449: /* fd = open(server,O_RDONLY); */
1.11 ohara 450: if (access(server,X_OK&R_OK) == 0) {
1.7 takayama 451: fprintf(stderr,"Starting OX server : %s\n",server);
452: return(0);
1.4 takayama 453: }
454: if (server[0] == '/') {
1.7 takayama 455: couldNotFind(server);
456: return(-1);
1.4 takayama 457: }
458: fprintf(stderr,"The server %s was not found. Trying to find it under OpenXM/bin\n",server);
459: p = getenv("OpenXM_HOME");
460: if (p == NULL) {
461: p = "/usr/local/OpenXM";
462: }
463: p2 = (char *) malloc(sizeof(char)*(strlen(p)+strlen("/bin/")+3+strlen(server)));
464: if (p2 == NULL) { fprintf(stderr,"No more memory.\n"); exit(10); }
465: strcpy(p2,p); strcat(p2,"/bin/"); strcat(p2,server);
1.10 takayama 466: /* fd = open(p2,O_RDONLY); */
1.11 ohara 467: if (access(p2,X_OK&R_OK) == 0) {
1.7 takayama 468: fprintf(stderr,"Starting OX server : %s\n",p2);
469: if (strlen(p2) < SERVERNAME_SIZE) strcpy(server,p2);
470: else {
471: couldNotFind("Too long ox server name.");
472: return(-1);
473: }
474: return(0);
1.4 takayama 475: }
476: couldNotFind(p2);
477: return(-1);
478: }
1.1 maekawa 479:
1.4 takayama 480: static void couldNotFind(char *s) {
481: fprintf(stderr,"OX server %s could not be found.\n",s);
482: }
1.1 maekawa 483:
484:
485:
486:
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