Annotation of OpenXM/src/kxx/oxmain.c, Revision 1.19
1.19 ! takayama 1: /* $OpenXM: OpenXM/src/kxx/oxmain.c,v 1.18 2004/09/17 07:27:28 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:
1.1 maekawa 160: if (portControl != -1) {
161: MyServerPid = fork();
162: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 163: else result=childServerMain(fdControl,fdStream);
1.1 maekawa 164: }else{
1.4 takayama 165: result=childServerMain(fdControl,fdStream);
1.1 maekawa 166: }
1.4 takayama 167: /* This line will be never executed in case of success */
1.7 takayama 168: if (result < 0 ) {
169: errorToStartEngine();
170: }
1.1 maekawa 171: }
172:
173: /* non-reverse case. */
174: fprintf(stderr,"Hostname is %s \n",sname);
175: fprintf(stderr,"Port for data (-data) = %d \n",portStream);
176: fprintf(stderr,"Port for control message (-control) = %d \n",portControl);
177: fflush(NULL);
178:
179:
180: if (LocalMode) {
181: if (portControl != -1) {
182: fdControl = socketOpen(sname,portControl);
183: portControl = OpenedSocket;
184: if (NotifyPortnumber) {
1.7 takayama 185: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 186: }
187: fdControl = socketAcceptLocal(fdControl);
188: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
189: }
190: if (portStream != -1) {
191: fdStream = socketOpen(sname,portStream);
192: portStream = OpenedSocket;
193: if (NotifyPortnumber) {
1.7 takayama 194: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 195: }
196: fdStream = socketAcceptLocal(fdStream);
197: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
198: }
199: }else{
200: if (portControl != -1) {
201: fdControl = socketOpen(sname,portControl);
202: portControl = OpenedSocket;
203: if (NotifyPortnumber) {
1.7 takayama 204: oxWritePortFile(0,portControl,portfile);
1.1 maekawa 205: }
206: fdControl = socketAccept(fdControl);
207: fprintf(stderr,"\n control port %d : Connected.\n",portControl);
208: }
209: if (portStream != -1) {
210: fdStream = socketOpen(sname,portStream);
211: portStream = OpenedSocket;
212: if (NotifyPortnumber) {
1.7 takayama 213: oxWritePortFile(1,portStream,portfile);
1.1 maekawa 214: }
215: fdStream = socketAccept(fdStream);
216: fprintf(stderr,"\n stream port %d : Connected.\n",portStream);
217: }
218: }
219:
1.19 ! takayama 220: if (passControl != NULL) {
! 221: char *s; int mm;
! 222: fprintf(stderr,"passControl\n");
! 223: mm = strlen(passControl);
! 224: s = (char *) malloc(mm+1);
! 225: if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
! 226: if (read(fdControl,s,mm+1) < 0) {
! 227: fprintf(stderr,"Read error to read passControl\n"); sleep(5); exit(1);
! 228: }
! 229: s[mm] = 0;
! 230: if (strcmp(s,passControl) != 0) {
! 231: fprintf(stderr,"s=%s and passControl=%s do not match.\n",s,passControl); sleep(5); exit(1);
! 232: }
! 233: free(s);
! 234: }
! 235: if (passData != NULL) {
! 236: char *s; int mm;
! 237: mm = strlen(passData);
! 238: fprintf(stderr,"passData\n");
! 239: s = (char *) malloc(mm+1);
! 240: if (s == NULL) {fprintf(stderr,"No more memory.\n"); exit(1); }
! 241: if (read(fdStream,s,mm+1) < 0) {
! 242: fprintf(stderr,"Read error to read passData\n");
! 243: errorToStartEngine();
! 244: }
! 245: if (strcmp(s,passData) != 0) {
! 246: fprintf(stderr,"s=%s and passData=%s do not match.\n",s,passData);
! 247: errorToStartEngine();
! 248: }
! 249: free(s);
! 250: }
1.1 maekawa 251:
1.4 takayama 252: result = 0;
1.1 maekawa 253: if (portControl != -1) {
254: MyServerPid = fork();
255: if (MyServerPid > 0 ) parentServerMain(fdControl,fdStream);
1.4 takayama 256: else result = childServerMain(fdControl,fdStream);
1.1 maekawa 257: }else{
1.4 takayama 258: result = childServerMain(fdControl,fdStream);
1.1 maekawa 259: }
1.4 takayama 260: if (result < 0) errorToStartEngine();
261: }
1.1 maekawa 262:
1.4 takayama 263: static void errorToStartEngine(void) {
264: fprintf(stderr,"Failed to start the engine. Childing process is terminating.\n");
265: /* You have to tell to the control server that there is no engine.
1.7 takayama 266: And, the control server must tell the client that there is no
267: engine.
268: This part has not yet been implemented.
269: If you implement this, set Do_not_use_control_stream_to_tell_no_server to
270: zero.
271: */
1.4 takayama 272: sleep(2);
273: exit(-1);
1.1 maekawa 274: }
275:
276: oxmainUsage() {
277: fprintf(stderr,"Usage: \n");
278: fprintf(stderr," ox [-ox serverprogram -host name -data portnum -control portnum -monitor]\n");
1.18 takayama 279: fprintf(stderr," [-insecure -portfile fname -reverse -passControl xxxyyyzzz -passData pppqqqrrr]");
1.12 takayama 280: fprintf(stderr," [-finish]");
1.1 maekawa 281: fprintf(stderr,"\n");
1.2 takayama 282: fprintf(stderr,"-reverse: ox server connects to the client.\n");
1.18 takayama 283: 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 284: 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");
285: 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 286: fprintf(stderr," (The option -pass is obsolete.)\n");
1.2 takayama 287: fprintf(stderr," If -reverse is not given, the client connect to the ox server\n");
288: fprintf(stderr," See OpenXM/src/SSkan/Doc/ox.sm1, /sm1connectr\n");
289: fprintf(stderr,"-insecure : \n");
290: 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 291: fprintf(stderr,"\n");
292: 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");
293: fprintf(stderr,"\n");
1.2 takayama 294: fprintf(stderr,"Example 1:\n");
1.3 takayama 295: 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 296: fprintf(stderr,"(client): sm1\n ");
297: fprintf(stderr," (ox.sm1) run ; \n");
1.1 maekawa 298: fprintf(stderr," sm1>[(dc1.math.kobe-u.ac.jp) 1300 1200] oxconnect /ox.ccc set\n");
1.2 takayama 299: fprintf(stderr,"Example 2:\n");
300: fprintf(stderr,"(Start the ox server): dc1%% ox -ox ~/OpenXM/bin/ox_sm1\n");
301: fprintf(stderr,"(client): dc1%% sm1\n ");
302: fprintf(stderr," (ox.sm1) run ; \n");
303: fprintf(stderr," sm1>[(localhost) 1300 1200] oxconnect /ox.ccc set\n");
1.1 maekawa 304: fprintf(stderr,"\n");
305: }
306:
307: parentServerMain(int fdControl, int fdStream) {
308: int id;
309: int mtag;
310: int size;
311: int n;
312: int r;
313: int message = 1;
314: int controlByteOrder;
1.12 takayama 315: extern OxTerminateMode;
1.1 maekawa 316: extern void myServerExit();
317:
1.12 takayama 318: if (OxTerminateMode) {
319: /*
320: OxTerminateMode cannot be used if you run ox by xterm -exec ox ...
321: */
322: if (fork()) {
323: close(fdControl); close(fdStream);
324: /* Parent */
325: exit(0); /*Tell the caller that launching is successfully finished.*/
326: }
327: }
328:
1.13 takayama 329: controlByteOrder = oxTellMyByteOrder(fdControl,fdControl);
1.1 maekawa 330: /* Set the network byte order. */
331: fprintf(stderr,"controlByteOrder=%x\n",controlByteOrder);
332:
333:
334: signal(SIGINT,myServerExit);
335: while(1) {
336: mtag = oxfdGetOXheader(fdControl,&SerialCurrentControl);
337: /* get the message_tag */
338: /* message_body */
339: id = oxfdGetInt32(fdControl); /* get the function_id */
340: if (message) {printf("\n[control] control function_id is %d\n",id);}
341: switch( id ) {
342: case SM_control_kill:
343: if (message) printf("[control] control_kill\n");
344: oxSendResultOfControl(fdControl);
345: sleep(2);
346: myServerExit();
347: break;
348: case SM_control_reset_connection:
349: if (message) printf("[control] control_reset_connection.\n");
350: if (message) printf("Sending the SIGUSR1 signal to %d: ",MyServerPid);
351: r=kill(MyServerPid,SIGUSR1);
352: if (message) printf("Result = %d\n",r);
353: fflush(NULL);
1.7 takayama 354: /* oxSendResultOfControlInt32(fdControl,0); */
1.1 maekawa 355: break;
356: default:
357: fprintf(stderr,"[control] Unknown control message.\n");
358: fprintf(stderr,"Shutdown the server.");
359: myServerExit();
360: break;
361: }
362: }
363: }
364:
365: void myServerExit() {
366: printf("Sending the kill signal to the child.\n");
367: kill(MyServerPid,SIGKILL);
1.12 takayama 368: exit(0);
1.1 maekawa 369: }
370:
371: childServerMain(int fdControl, int fdStream) {
372: int i;
373: close(fdControl); /* close(0); dup(fdStream); */
374: dup2(fdStream,3);
375: dup2(fdStream,4);
1.4 takayama 376: /*close(0);
1.7 takayama 377: #include <sys/param.h>
378: for (i=5; i<NOFILE; i++) close(i);
379: */
1.4 takayama 380: if (!Do_not_use_control_stream_to_tell_no_server) {
1.7 takayama 381: if (findOxServer(ServerName) < 0) {
382: return(-1);
383: }
1.4 takayama 384: }
1.5 takayama 385: fprintf(stderr,"childServerMain: Starting the server %s\n",ServerName); fflush(NULL);
1.14 takayama 386:
387: /*
388: {
389: int i;
390: i=0;
391: while (environ[i] != NULL) {
392: fprintf(stderr,"%s ",environ[i++]);
393: }
394: fprintf(stderr,"\n");
395: }
396: */
397: /* bug: xterm of potato does not seem to pass the LD_LIBRARY_PATH.
398: So, the new gc does not work.
399: it is an workaround for OpenXM */
400: if (getenv("LD_LIBRARY_PATH") == (char *)NULL) {
401: char *s,*o;
402: fprintf(stderr,"Hmm... LD_LIBRARY_PATH does not seem to be set.\n");
403: o = getenv("OpenXM_HOME");
404: if (o == NULL) {
405: fprintf(stderr,"Giving up to set the LD_LIBRARY_PATH variable.\n");
406: }else{
407: s = (char *)malloc(strlen(o)+64);
408: sprintf(s,"LD_LIBRARY_PATH=%s/lib",o);
409: putenv(s);
410: }
411: }
412:
1.1 maekawa 413: if (PacketMonitor) {
1.14 takayama 414: if (execle(ServerName,ServerName,"-monitor",NULL,environ)) {
1.1 maekawa 415: fprintf(stderr,"%s cannot be executed with -monitor.\n",ServerName);
1.7 takayama 416: fflush(NULL);
417: return(-1);
1.1 maekawa 418: }
419: }else {
1.14 takayama 420: if (execle(ServerName,ServerName,NULL,environ)) {
1.1 maekawa 421: fprintf(stderr,"%s cannot be executed.\n",ServerName);
1.7 takayama 422: fflush(NULL);
423: return(-1);
1.1 maekawa 424: }
425: }
1.4 takayama 426: /* never reached. */
1.1 maekawa 427: }
428:
429:
430: /* These are dummy. It is defined in stackmachine.c */
431: unlockCtrlCForOx() { ; }
432: restoreLockCtrlCForOx() { ; }
433:
1.4 takayama 434: static int findOxServer(char *server) {
435: char *p;
436: char *p2;
437: if (strlen(server) == 0) return(-1);
1.10 takayama 438: /* fd = open(server,O_RDONLY); */
1.11 ohara 439: if (access(server,X_OK&R_OK) == 0) {
1.7 takayama 440: fprintf(stderr,"Starting OX server : %s\n",server);
441: return(0);
1.4 takayama 442: }
443: if (server[0] == '/') {
1.7 takayama 444: couldNotFind(server);
445: return(-1);
1.4 takayama 446: }
447: fprintf(stderr,"The server %s was not found. Trying to find it under OpenXM/bin\n",server);
448: p = getenv("OpenXM_HOME");
449: if (p == NULL) {
450: p = "/usr/local/OpenXM";
451: }
452: p2 = (char *) malloc(sizeof(char)*(strlen(p)+strlen("/bin/")+3+strlen(server)));
453: if (p2 == NULL) { fprintf(stderr,"No more memory.\n"); exit(10); }
454: strcpy(p2,p); strcat(p2,"/bin/"); strcat(p2,server);
1.10 takayama 455: /* fd = open(p2,O_RDONLY); */
1.11 ohara 456: if (access(p2,X_OK&R_OK) == 0) {
1.7 takayama 457: fprintf(stderr,"Starting OX server : %s\n",p2);
458: if (strlen(p2) < SERVERNAME_SIZE) strcpy(server,p2);
459: else {
460: couldNotFind("Too long ox server name.");
461: return(-1);
462: }
463: return(0);
1.4 takayama 464: }
465: couldNotFind(p2);
466: return(-1);
467: }
1.1 maekawa 468:
1.4 takayama 469: static void couldNotFind(char *s) {
470: fprintf(stderr,"OX server %s could not be found.\n",s);
471: }
1.1 maekawa 472:
473:
474:
475:
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