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0c83d9ea | 1 | /* |
2 | * $Id$ | |
3 | * | |
4 | * bsd-cray.c | |
5 | * | |
6 | * Copyright (c) 2002, Cray Inc. (Wendy Palm <wendyp@cray.com>) | |
7 | * Significant portions provided by | |
8 | * Wayne Schroeder, SDSC <schroeder@sdsc.edu> | |
9 | * William Jones, UTexas <jones@tacc.utexas.edu> | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions and the following disclaimer. | |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in the | |
18 | * documentation and/or other materials provided with the distribution. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
21 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
22 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
23 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
24 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
25 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
29 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
30 | * | |
31 | * Created: Apr 22 16.34:00 2002 wp | |
32 | * | |
33 | * This file contains functions required for proper execution | |
34 | * on UNICOS systems. | |
35 | * | |
ca5c7d6a | 36 | */ |
ef51930f | 37 | #ifdef _UNICOS |
ca5c7d6a | 38 | |
ca5c7d6a | 39 | #include <udb.h> |
40 | #include <tmpdir.h> | |
41 | #include <unistd.h> | |
42 | #include <sys/category.h> | |
43 | #include <utmp.h> | |
44 | #include <sys/jtab.h> | |
45 | #include <signal.h> | |
1a23ac2c | 46 | #include <sys/priv.h> |
47 | #include <sys/secparm.h> | |
56b54901 | 48 | #include <sys/tfm.h> |
1a23ac2c | 49 | #include <sys/usrv.h> |
50 | #include <sys/sysv.h> | |
51 | #include <sys/sectab.h> | |
56b54901 | 52 | #include <sys/secstat.h> |
ca5c7d6a | 53 | #include <sys/stat.h> |
56b54901 | 54 | #include <sys/session.h> |
ca5c7d6a | 55 | #include <stdlib.h> |
56 | #include <pwd.h> | |
57 | #include <fcntl.h> | |
58 | #include <errno.h> | |
56b54901 | 59 | #include <ia.h> |
60 | #include <urm.h> | |
61 | #include "ssh.h" | |
c1ad5966 | 62 | |
63 | #include "includes.h" | |
64 | #include "sys/types.h" | |
65 | ||
66 | #ifndef HAVE_STRUCT_SOCKADDR_STORAGE | |
67 | # define _SS_MAXSIZE 128 /* Implementation specific max size */ | |
68 | # define _SS_PADSIZE (_SS_MAXSIZE - sizeof (struct sockaddr)) | |
69 | ||
70 | # define ss_family ss_sa.sa_family | |
71 | #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ | |
72 | ||
73 | #ifndef IN6_IS_ADDR_LOOPBACK | |
74 | # define IN6_IS_ADDR_LOOPBACK(a) \ | |
75 | (((u_int32_t *) (a))[0] == 0 && ((u_int32_t *) (a))[1] == 0 && \ | |
76 | ((u_int32_t *) (a))[2] == 0 && ((u_int32_t *) (a))[3] == htonl (1)) | |
77 | #endif /* !IN6_IS_ADDR_LOOPBACK */ | |
78 | ||
79 | #ifndef AF_INET6 | |
80 | /* Define it to something that should never appear */ | |
81 | #define AF_INET6 AF_MAX | |
82 | #endif | |
83 | ||
56b54901 | 84 | #include "log.h" |
85 | #include "servconf.h" | |
1a23ac2c | 86 | #include "bsd-cray.h" |
87 | ||
56b54901 | 88 | #define MAXACID 80 |
89 | ||
90 | extern ServerOptions options; | |
91 | ||
9901cb37 | 92 | char cray_tmpdir[TPATHSIZ + 1]; /* job TMPDIR path */ |
ca5c7d6a | 93 | |
9901cb37 | 94 | struct sysv sysv; /* system security structure */ |
95 | struct usrv usrv; /* user security structure */ | |
56b54901 | 96 | |
ca5c7d6a | 97 | /* |
98 | * Functions. | |
99 | */ | |
ca5c7d6a | 100 | void cray_retain_utmp(struct utmp *, int); |
8280a5ae | 101 | void cray_delete_tmpdir(char *, int, uid_t); |
ca5c7d6a | 102 | void cray_init_job(struct passwd *); |
103 | void cray_set_tmpdir(struct utmp *); | |
56b54901 | 104 | void cray_login_failure(char *, int); |
105 | int cray_setup(uid_t, char *, const char *); | |
106 | int cray_access_denied(char *); | |
107 | ||
108 | void | |
109 | cray_login_failure(char *username, int errcode) | |
110 | { | |
9901cb37 | 111 | struct udb *ueptr; /* UDB pointer for username */ |
112 | ia_failure_t fsent; /* ia_failure structure */ | |
56b54901 | 113 | ia_failure_ret_t fret; /* ia_failure return stuff */ |
9901cb37 | 114 | struct jtab jtab; /* job table structure */ |
115 | int jid = 0; /* job id */ | |
56b54901 | 116 | |
9901cb37 | 117 | if ((jid = getjtab(&jtab)) < 0) |
56b54901 | 118 | debug("cray_login_failure(): getjtab error"); |
9901cb37 | 119 | |
56b54901 | 120 | getsysudb(); |
9901cb37 | 121 | if ((ueptr = getudbnam(username)) == UDB_NULL) |
56b54901 | 122 | debug("cray_login_failure(): getudbname() returned NULL"); |
56b54901 | 123 | endudb(); |
9901cb37 | 124 | |
125 | memset(&fsent, '\0', sizeof(fsent)); | |
126 | fsent.revision = 0; | |
127 | fsent.uname = username; | |
5d8ca8c7 | 128 | fsent.host = (char *)get_canonical_hostname(options.use_dns); |
9901cb37 | 129 | fsent.ttyn = "sshd"; |
130 | fsent.caller = IA_SSHD; | |
131 | fsent.flags = IA_INTERACTIVE; | |
132 | fsent.ueptr = ueptr; | |
133 | fsent.jid = jid; | |
134 | fsent.errcode = errcode; | |
135 | fsent.pwdp = NULL; | |
136 | fsent.exitcode = 0; /* dont exit in ia_failure() */ | |
137 | ||
138 | fret.revision = 0; | |
139 | fret.normal = 0; | |
ca5c7d6a | 140 | |
56b54901 | 141 | /* |
142 | * Call ia_failure because of an login failure. | |
143 | */ | |
9901cb37 | 144 | ia_failure(&fsent, &fret); |
56b54901 | 145 | } |
1a23ac2c | 146 | |
68187931 | 147 | /* |
56b54901 | 148 | * Cray access denied |
149 | */ | |
150 | int | |
151 | cray_access_denied(char *username) | |
ca5c7d6a | 152 | { |
9901cb37 | 153 | struct udb *ueptr; /* UDB pointer for username */ |
154 | int errcode; /* IA errorcode */ | |
56b54901 | 155 | |
156 | errcode = 0; | |
157 | getsysudb(); | |
9901cb37 | 158 | if ((ueptr = getudbnam(username)) == UDB_NULL) |
56b54901 | 159 | debug("cray_login_failure(): getudbname() returned NULL"); |
56b54901 | 160 | endudb(); |
9901cb37 | 161 | |
162 | if (ueptr != NULL && ueptr->ue_disabled) | |
56b54901 | 163 | errcode = IA_DISABLED; |
164 | if (errcode) | |
165 | cray_login_failure(username, errcode); | |
9901cb37 | 166 | |
56b54901 | 167 | return (errcode); |
168 | } | |
169 | ||
73d9dad3 | 170 | /* |
171 | * record_failed_login: generic "login failed" interface function | |
172 | */ | |
2cd5dbba | 173 | void |
73d9dad3 | 174 | record_failed_login(const char *user, const char *ttyname) |
175 | { | |
176 | cray_login_failure((char *)user, IA_UDBERR); | |
177 | } | |
178 | ||
56b54901 | 179 | int |
180 | cray_setup (uid_t uid, char *username, const char *command) | |
181 | { | |
182 | extern struct udb *getudb(); | |
ca5c7d6a | 183 | extern char *setlimits(); |
68187931 | 184 | |
9901cb37 | 185 | int err; /* error return */ |
186 | time_t system_time; /* current system clock */ | |
187 | time_t expiration_time; /* password expiration time */ | |
188 | int maxattempts; /* maximum no. of failed login attempts */ | |
189 | int SecureSys; /* unicos security flag */ | |
190 | int minslevel = 0; /* system minimum security level */ | |
191 | int i, j; | |
192 | int valid_acct = -1; /* flag for reading valid acct */ | |
193 | char acct_name[MAXACID] = { "" }; /* used to read acct name */ | |
194 | struct jtab jtab; /* Job table struct */ | |
195 | struct udb ue; /* udb entry for logging-in user */ | |
196 | struct udb *up; /* pointer to UDB entry */ | |
197 | struct secstat secinfo; /* file security attributes */ | |
198 | struct servprov init_info; /* used for sesscntl() call */ | |
199 | int jid; /* job ID */ | |
200 | int pid; /* process ID */ | |
201 | char *sr; /* status return from setlimits() */ | |
202 | char *ttyn = NULL; /* ttyname or command name*/ | |
203 | char hostname[MAXHOSTNAMELEN]; | |
204 | /* passwd stuff for ia_user */ | |
205 | passwd_t pwdacm, pwddialup, pwdudb, pwdwal, pwddce; | |
206 | ia_user_ret_t uret; /* stuff returned from ia_user */ | |
c1ad5966 | 207 | ia_user_t usent; /* ia_user main structure */ |
9901cb37 | 208 | int ia_rcode; /* ia_user return code */ |
209 | ia_failure_t fsent; /* ia_failure structure */ | |
56b54901 | 210 | ia_failure_ret_t fret; /* ia_failure return stuff */ |
9901cb37 | 211 | ia_success_t ssent; /* ia_success structure */ |
56b54901 | 212 | ia_success_ret_t sret; /* ia_success return stuff */ |
9901cb37 | 213 | int ia_mlsrcode; /* ia_mlsuser return code */ |
214 | int secstatrc; /* [f]secstat return code */ | |
56b54901 | 215 | |
216 | if (SecureSys = (int)sysconf(_SC_CRAY_SECURE_SYS)) { | |
217 | getsysv(&sysv, sizeof(struct sysv)); | |
218 | minslevel = sysv.sy_minlvl; | |
9901cb37 | 219 | if (getusrv(&usrv) < 0) |
220 | fatal("getusrv() failed, errno = %d", errno); | |
68187931 | 221 | } |
56b54901 | 222 | hostname[0] = '\0'; |
9901cb37 | 223 | strlcpy(hostname, |
5d8ca8c7 | 224 | (char *)get_canonical_hostname(options.use_dns), |
56b54901 | 225 | MAXHOSTNAMELEN); |
9901cb37 | 226 | /* |
227 | * Fetch user's UDB entry. | |
228 | */ | |
229 | getsysudb(); | |
230 | if ((up = getudbnam(username)) == UDB_NULL) | |
231 | fatal("cannot fetch user's UDB entry"); | |
232 | ||
233 | /* | |
234 | * Prevent any possible fudging so perform a data | |
235 | * safety check and compare the supplied uid against | |
236 | * the udb's uid. | |
237 | */ | |
238 | if (up->ue_uid != uid) | |
239 | fatal("IA uid missmatch"); | |
56b54901 | 240 | endudb(); |
241 | ||
9901cb37 | 242 | if ((jid = getjtab(&jtab)) < 0) { |
56b54901 | 243 | debug("getjtab"); |
9901cb37 | 244 | return(-1); |
56b54901 | 245 | } |
246 | pid = getpid(); | |
247 | ttyn = ttyname(0); | |
248 | if (SecureSys) { | |
9901cb37 | 249 | if (ttyn != NULL) |
56b54901 | 250 | secstatrc = secstat(ttyn, &secinfo); |
9901cb37 | 251 | else |
56b54901 | 252 | secstatrc = fsecstat(1, &secinfo); |
9901cb37 | 253 | |
254 | if (secstatrc == 0) | |
56b54901 | 255 | debug("[f]secstat() successful"); |
9901cb37 | 256 | else |
257 | fatal("[f]secstat() error, rc = %d", secstatrc); | |
56b54901 | 258 | } |
259 | if ((ttyn == NULL) && ((char *)command != NULL)) | |
260 | ttyn = (char *)command; | |
9901cb37 | 261 | /* |
262 | * Initialize all structures to call ia_user | |
263 | */ | |
264 | usent.revision = 0; | |
265 | usent.uname = username; | |
266 | usent.host = hostname; | |
267 | usent.ttyn = ttyn; | |
268 | usent.caller = IA_SSHD; | |
269 | usent.pswdlist = &pwdacm; | |
270 | usent.ueptr = &ue; | |
271 | usent.flags = IA_INTERACTIVE | IA_FFLAG; | |
272 | pwdacm.atype = IA_SECURID; | |
273 | pwdacm.pwdp = NULL; | |
274 | pwdacm.next = &pwdudb; | |
275 | ||
276 | pwdudb.atype = IA_UDB; | |
277 | pwdudb.pwdp = NULL; | |
278 | pwdudb.next = &pwddce; | |
279 | ||
280 | pwddce.atype = IA_DCE; | |
281 | pwddce.pwdp = NULL; | |
282 | pwddce.next = &pwddialup; | |
283 | ||
284 | pwddialup.atype = IA_DIALUP; | |
285 | pwddialup.pwdp = NULL; | |
286 | /* pwddialup.next = &pwdwal; */ | |
287 | pwddialup.next = NULL; | |
288 | ||
289 | pwdwal.atype = IA_WAL; | |
290 | pwdwal.pwdp = NULL; | |
291 | pwdwal.next = NULL; | |
292 | ||
293 | uret.revision = 0; | |
294 | uret.pswd = NULL; | |
295 | uret.normal = 0; | |
296 | ||
297 | ia_rcode = ia_user(&usent, &uret); | |
298 | switch (ia_rcode) { | |
299 | /* | |
300 | * These are acceptable return codes from ia_user() | |
301 | */ | |
302 | case IA_UDBWEEK: /* Password Expires in 1 week */ | |
303 | expiration_time = ue.ue_pwage.time + ue.ue_pwage.maxage; | |
304 | printf ("WARNING - your current password will expire %s\n", | |
305 | ctime((const time_t *)&expiration_time)); | |
306 | break; | |
307 | case IA_UDBEXPIRED: | |
308 | if (ttyname(0) != NULL) { | |
309 | /* Force a password change */ | |
310 | printf("Your password has expired; Choose a new one.\n"); | |
311 | execl("/bin/passwd", "passwd", username, 0); | |
312 | exit(9); | |
313 | } | |
314 | break; | |
315 | case IA_NORMAL: /* Normal Return Code */ | |
316 | break; | |
317 | case IA_BACKDOOR: | |
318 | /* XXX: can we memset it to zero here so save some of this */ | |
319 | strlcpy(ue.ue_name, "root", sizeof(ue.ue_name)); | |
320 | strlcpy(ue.ue_dir, "/", sizeof(ue.ue_dir)); | |
321 | strlcpy(ue.ue_shell, "/bin/sh", sizeof(ue.ue_shell)); | |
322 | ||
323 | ue.ue_passwd[0] = '\0'; | |
324 | ue.ue_age[0] = '\0'; | |
325 | ue.ue_comment[0] = '\0'; | |
326 | ue.ue_loghost[0] = '\0'; | |
327 | ue.ue_logline[0] = '\0'; | |
328 | ||
329 | ue.ue_uid = -1; | |
330 | ue.ue_nice[UDBRC_INTER] = 0; | |
331 | ||
332 | for (i = 0; i < MAXVIDS; i++) | |
333 | ue.ue_gids[i] = 0; | |
334 | ||
335 | ue.ue_logfails = 0; | |
336 | ue.ue_minlvl = ue.ue_maxlvl = ue.ue_deflvl = minslevel; | |
337 | ue.ue_defcomps = 0; | |
338 | ue.ue_comparts = 0; | |
339 | ue.ue_permits = 0; | |
340 | ue.ue_trap = 0; | |
341 | ue.ue_disabled = 0; | |
342 | ue.ue_logtime = 0; | |
343 | break; | |
344 | case IA_CONSOLE: /* Superuser not from Console */ | |
345 | case IA_TRUSTED: /* Trusted user */ | |
346 | if (options.permit_root_login > PERMIT_NO) | |
347 | break; /* Accept root login */ | |
348 | default: | |
349 | /* | |
350 | * These are failed return codes from ia_user() | |
351 | */ | |
352 | switch (ia_rcode) | |
353 | { | |
354 | case IA_BADAUTH: | |
355 | printf("Bad authorization, access denied.\n"); | |
356 | break; | |
357 | case IA_DISABLED: | |
358 | printf("Your login has been disabled. Contact the system "); | |
359 | printf("administrator for assistance.\n"); | |
360 | break; | |
361 | case IA_GETSYSV: | |
362 | printf("getsysv() failed - errno = %d\n", errno); | |
363 | break; | |
364 | case IA_MAXLOGS: | |
365 | printf("Maximum number of failed login attempts exceeded.\n"); | |
366 | printf("Access denied.\n"); | |
367 | break; | |
368 | case IA_UDBPWDNULL: | |
369 | if (SecureSys) | |
370 | printf("NULL Password not allowed on MLS systems.\n"); | |
371 | break; | |
372 | default: | |
373 | break; | |
374 | } | |
375 | ||
376 | /* | |
377 | * Authentication failed. | |
378 | */ | |
379 | printf("sshd: Login incorrect, (0%o)\n", | |
380 | ia_rcode-IA_ERRORCODE); | |
381 | ||
382 | /* | |
383 | * Initialize structure for ia_failure | |
384 | * which will exit. | |
385 | */ | |
386 | fsent.revision = 0; | |
387 | fsent.uname = username; | |
388 | fsent.host = hostname; | |
389 | fsent.ttyn = ttyn; | |
390 | fsent.caller = IA_SSHD; | |
391 | fsent.flags = IA_INTERACTIVE; | |
392 | fsent.ueptr = &ue; | |
393 | fsent.jid = jid; | |
394 | fsent.errcode = ia_rcode; | |
395 | fsent.pwdp = uret.pswd; | |
396 | fsent.exitcode = 1; | |
397 | ||
398 | fret.revision = 0; | |
399 | fret.normal = 0; | |
400 | ||
401 | /* | |
402 | * Call ia_failure because of an IA failure. | |
403 | * There is no return because ia_failure exits. | |
404 | */ | |
405 | ia_failure(&fsent, &fret); | |
406 | ||
407 | exit(1); | |
408 | } | |
409 | ||
56b54901 | 410 | ia_mlsrcode = IA_NORMAL; |
411 | if (SecureSys) { | |
412 | debug("calling ia_mlsuser()"); | |
9901cb37 | 413 | ia_mlsrcode = ia_mlsuser(&ue, &secinfo, &usrv, NULL, 0); |
56b54901 | 414 | } |
415 | if (ia_mlsrcode != IA_NORMAL) { | |
416 | printf("sshd: Login incorrect, (0%o)\n", | |
9901cb37 | 417 | ia_mlsrcode-IA_ERRORCODE); |
56b54901 | 418 | /* |
9901cb37 | 419 | * Initialize structure for ia_failure |
420 | * which will exit. | |
421 | */ | |
56b54901 | 422 | fsent.revision = 0; |
9901cb37 | 423 | fsent.uname = username; |
424 | fsent.host = hostname; | |
425 | fsent.ttyn = ttyn; | |
426 | fsent.caller = IA_SSHD; | |
427 | fsent.flags = IA_INTERACTIVE; | |
428 | fsent.ueptr = &ue; | |
429 | fsent.jid = jid; | |
430 | fsent.errcode = ia_mlsrcode; | |
431 | fsent.pwdp = uret.pswd; | |
56b54901 | 432 | fsent.exitcode = 1; |
9901cb37 | 433 | fret.revision = 0; |
434 | fret.normal = 0; | |
56b54901 | 435 | |
436 | /* | |
9901cb37 | 437 | * Call ia_failure because of an IA failure. |
438 | * There is no return because ia_failure exits. | |
439 | */ | |
56b54901 | 440 | ia_failure(&fsent,&fret); |
441 | exit(1); | |
1a23ac2c | 442 | } |
ca5c7d6a | 443 | |
9901cb37 | 444 | /* Provide login status information */ |
445 | if (options.print_lastlog && ue.ue_logtime != 0) { | |
446 | printf("Last successful login was : %.*s ", 19, | |
447 | (char *)ctime(&ue.ue_logtime)); | |
448 | ||
449 | if (*ue.ue_loghost != '\0') { | |
450 | printf("from %.*s\n", sizeof(ue.ue_loghost), | |
451 | ue.ue_loghost); | |
452 | } else { | |
453 | printf("on %.*s\n", sizeof(ue.ue_logline), | |
454 | ue.ue_logline); | |
455 | } | |
456 | ||
457 | if (SecureSys && (ue.ue_logfails != 0)) { | |
458 | printf(" followed by %d failed attempts\n", | |
459 | ue.ue_logfails); | |
460 | } | |
461 | } | |
462 | ||
56b54901 | 463 | /* |
464 | * Call ia_success to process successful I/A. | |
465 | */ | |
466 | ssent.revision = 0; | |
467 | ssent.uname = username; | |
468 | ssent.host = hostname; | |
469 | ssent.ttyn = ttyn; | |
470 | ssent.caller = IA_SSHD; | |
471 | ssent.flags = IA_INTERACTIVE; | |
472 | ssent.ueptr = &ue; | |
473 | ssent.jid = jid; | |
474 | ssent.errcode = ia_rcode; | |
475 | ssent.us = NULL; | |
9901cb37 | 476 | ssent.time = 1; /* Set ue_logtime */ |
56b54901 | 477 | |
478 | sret.revision = 0; | |
479 | sret.normal = 0; | |
480 | ||
9901cb37 | 481 | ia_success(&ssent, &sret); |
56b54901 | 482 | |
9901cb37 | 483 | /* |
484 | * Query for account, iff > 1 valid acid & askacid permbit | |
485 | */ | |
486 | if (((ue.ue_permbits & PERMBITS_ACCTID) || | |
487 | (ue.ue_acids[0] >= 0) && (ue.ue_acids[1] >= 0)) && | |
488 | ue.ue_permbits & PERMBITS_ASKACID) { | |
56b54901 | 489 | if (ttyname(0) != NULL) { |
9901cb37 | 490 | debug("cray_setup: ttyname true case, %.100s", ttyname); |
491 | while (valid_acct == -1) { | |
492 | printf("Account (? for available accounts)" | |
493 | " [%s]: ", acid2nam(ue.ue_acids[0])); | |
494 | fgets(acct_name, MAXACID, stdin); | |
495 | switch (acct_name[0]) { | |
496 | case EOF: | |
497 | exit(0); | |
498 | break; | |
499 | case '\0': | |
500 | valid_acct = ue.ue_acids[0]; | |
501 | strlcpy(acct_name, acid2nam(valid_acct), MAXACID); | |
502 | break; | |
503 | case '?': | |
504 | /* Print the list 3 wide */ | |
505 | for (i = 0, j = 0; i < MAXVIDS; i++) { | |
506 | if (ue.ue_acids[i] == -1) { | |
507 | printf("\n"); | |
508 | break; | |
509 | } | |
510 | if (++j == 4) { | |
511 | j = 1; | |
512 | printf("\n"); | |
513 | } | |
514 | printf(" %s", | |
515 | acid2nam(ue.ue_acids[i])); | |
516 | } | |
517 | if (ue.ue_permbits & PERMBITS_ACCTID) { | |
518 | printf("\"acctid\" permbit also allows" | |
519 | " you to select any valid " | |
520 | "account name.\n"); | |
521 | } | |
522 | printf("\n"); | |
523 | break; | |
524 | default: | |
525 | valid_acct = nam2acid(acct_name); | |
c1ad5966 | 526 | if (valid_acct == -1) |
9901cb37 | 527 | printf( |
528 | "Account id not found for" | |
529 | " account name \"%s\"\n\n", | |
530 | acct_name); | |
531 | break; | |
9901cb37 | 532 | } |
9901cb37 | 533 | /* |
c1ad5966 | 534 | * If an account was given, search the user's |
535 | * acids array to verify they can use this account. | |
9901cb37 | 536 | */ |
c1ad5966 | 537 | if ((valid_acct != -1) && |
538 | !(ue.ue_permbits & PERMBITS_ACCTID)) { | |
539 | for (i = 0; i < MAXVIDS; i++) { | |
540 | if (ue.ue_acids[i] == -1) | |
541 | break; | |
542 | if (valid_acct == ue.ue_acids[i]) | |
543 | break; | |
544 | } | |
545 | if (i == MAXVIDS || | |
546 | ue.ue_acids[i] == -1) { | |
547 | fprintf(stderr, "Cannot set" | |
548 | " account name to " | |
549 | "\"%s\", permission " | |
550 | "denied\n\n", acct_name); | |
551 | valid_acct = -1; | |
552 | } | |
553 | } | |
9901cb37 | 554 | } |
56b54901 | 555 | } else { |
556 | /* | |
c1ad5966 | 557 | * The client isn't connected to a terminal and can't |
558 | * respond to an acid prompt. Use default acid. | |
56b54901 | 559 | */ |
c1ad5966 | 560 | debug("cray_setup: ttyname false case, %.100s", |
561 | ttyname); | |
56b54901 | 562 | valid_acct = ue.ue_acids[0]; |
563 | } | |
c1ad5966 | 564 | } else { |
565 | /* | |
566 | * The user doesn't have the askacid permbit set or | |
567 | * only has one valid account to use. | |
568 | */ | |
569 | valid_acct = ue.ue_acids[0]; | |
570 | } | |
571 | if (acctid(0, valid_acct) < 0) { | |
572 | printf ("Bad account id: %d\n", valid_acct); | |
573 | exit(1); | |
9901cb37 | 574 | } |
575 | ||
576 | /* | |
577 | * Now set shares, quotas, limits, including CPU time for the | |
578 | * (interactive) job and process, and set up permissions | |
579 | * (for chown etc), etc. | |
580 | */ | |
56b54901 | 581 | if (setshares(ue.ue_uid, valid_acct, printf, 0, 0)) { |
9901cb37 | 582 | printf("Unable to give %d shares to <%s>(%d/%d)\n", |
583 | ue.ue_shares, ue.ue_name, ue.ue_uid, valid_acct); | |
56b54901 | 584 | exit(1); |
9901cb37 | 585 | } |
1a23ac2c | 586 | |
68187931 | 587 | sr = setlimits(username, C_PROC, pid, UDBRC_INTER); |
56b54901 | 588 | if (sr != NULL) { |
589 | debug("%.200s", sr); | |
590 | exit(1); | |
591 | } | |
68187931 | 592 | sr = setlimits(username, C_JOB, jid, UDBRC_INTER); |
56b54901 | 593 | if (sr != NULL) { |
594 | debug("%.200s", sr); | |
595 | exit(1); | |
596 | } | |
597 | /* | |
9901cb37 | 598 | * Place the service provider information into |
56b54901 | 599 | * the session table (Unicos) or job table (Unicos/mk). |
600 | * There exist double defines for the job/session table in | |
601 | * unicos/mk (jtab.h) so no need for a compile time switch. | |
602 | */ | |
9901cb37 | 603 | memset(&init_info, '\0', sizeof(init_info)); |
604 | init_info.s_sessinit.si_id = URM_SPT_LOGIN; | |
56b54901 | 605 | init_info.s_sessinit.si_pid = getpid(); |
606 | init_info.s_sessinit.si_sid = jid; | |
56b54901 | 607 | sesscntl(0, S_SETSERVPO, (int)&init_info); |
1a23ac2c | 608 | |
56b54901 | 609 | /* |
610 | * Set user and controlling tty security attributes. | |
611 | */ | |
612 | if (SecureSys) { | |
613 | if (setusrv(&usrv) == -1) { | |
614 | debug("setusrv() failed, errno = %d",errno); | |
615 | exit(1); | |
616 | } | |
617 | } | |
618 | ||
9901cb37 | 619 | return (0); |
68187931 | 620 | } |
1a23ac2c | 621 | |
68187931 | 622 | /* |
1a23ac2c | 623 | * The rc.* and /etc/sdaemon methods of starting a program on unicos/unicosmk |
624 | * can have pal privileges that sshd can inherit which | |
625 | * could allow a user to su to root with out a password. | |
626 | * This subroutine clears all privileges. | |
627 | */ | |
628 | void | |
629 | drop_cray_privs() | |
630 | { | |
631 | #if defined(_SC_CRAY_PRIV_SU) | |
9901cb37 | 632 | priv_proc_t *privstate; |
633 | int result; | |
634 | extern int priv_set_proc(); | |
635 | extern priv_proc_t *priv_init_proc(); | |
1a23ac2c | 636 | |
637 | /* | |
638 | * If ether of theses two flags are not set | |
68187931 | 639 | * then don't allow this version of ssh to run. |
640 | */ | |
641 | if (!sysconf(_SC_CRAY_PRIV_SU)) | |
642 | fatal("Not PRIV_SU system."); | |
643 | if (!sysconf(_SC_CRAY_POSIX_PRIV)) | |
644 | fatal("Not POSIX_PRIV."); | |
1a23ac2c | 645 | |
56b54901 | 646 | debug("Setting MLS labels.");; |
647 | ||
648 | if (sysconf(_SC_CRAY_SECURE_MAC)) { | |
649 | usrv.sv_minlvl = SYSLOW; | |
650 | usrv.sv_actlvl = SYSHIGH; | |
651 | usrv.sv_maxlvl = SYSHIGH; | |
652 | } else { | |
653 | usrv.sv_minlvl = sysv.sy_minlvl; | |
654 | usrv.sv_actlvl = sysv.sy_minlvl; | |
655 | usrv.sv_maxlvl = sysv.sy_maxlvl; | |
656 | } | |
657 | usrv.sv_actcmp = 0; | |
658 | usrv.sv_valcmp = sysv.sy_valcmp; | |
659 | ||
660 | usrv.sv_intcat = TFM_SYSTEM; | |
661 | usrv.sv_valcat |= (TFM_SYSTEM | TFM_SYSFILE); | |
1a23ac2c | 662 | |
9901cb37 | 663 | if (setusrv(&usrv) < 0) { |
8280a5ae | 664 | fatal("%s(%d): setusrv(): %s", __FILE__, __LINE__, |
68187931 | 665 | strerror(errno)); |
9901cb37 | 666 | } |
ca5c7d6a | 667 | |
1a23ac2c | 668 | if ((privstate = priv_init_proc()) != NULL) { |
68187931 | 669 | result = priv_set_proc(privstate); |
9901cb37 | 670 | if (result != 0 ) { |
8280a5ae | 671 | fatal("%s(%d): priv_set_proc(): %s", |
68187931 | 672 | __FILE__, __LINE__, strerror(errno)); |
9901cb37 | 673 | } |
68187931 | 674 | priv_free_proc(privstate); |
675 | } | |
676 | debug ("Privileges should be cleared..."); | |
1a23ac2c | 677 | #else |
68187931 | 678 | /* XXX: do this differently */ |
679 | # error Cray systems must be run with _SC_CRAY_PRIV_SU on! | |
1a23ac2c | 680 | #endif |
ca5c7d6a | 681 | } |
682 | ||
683 | ||
684 | /* | |
685 | * Retain utmp/wtmp information - used by cray accounting. | |
686 | */ | |
687 | void | |
688 | cray_retain_utmp(struct utmp *ut, int pid) | |
689 | { | |
690 | int fd; | |
68187931 | 691 | struct utmp utmp; |
692 | ||
693 | if ((fd = open(UTMP_FILE, O_RDONLY)) != -1) { | |
9901cb37 | 694 | /* XXX use atomicio */ |
68187931 | 695 | while (read(fd, (char *)&utmp, sizeof(utmp)) == sizeof(utmp)) { |
696 | if (pid == utmp.ut_pid) { | |
697 | ut->ut_jid = utmp.ut_jid; | |
4809bc4c | 698 | strncpy(ut->ut_tpath, utmp.ut_tpath, sizeof(utmp.ut_tpath)); |
699 | strncpy(ut->ut_host, utmp.ut_host, sizeof(utmp.ut_host)); | |
700 | strncpy(ut->ut_name, utmp.ut_name, sizeof(utmp.ut_name)); | |
68187931 | 701 | break; |
ca5c7d6a | 702 | } |
703 | } | |
704 | close(fd); | |
9901cb37 | 705 | } else |
706 | fatal("Unable to open utmp file"); | |
ca5c7d6a | 707 | } |
708 | ||
709 | /* | |
710 | * tmpdir support. | |
711 | */ | |
712 | ||
713 | /* | |
714 | * find and delete jobs tmpdir. | |
715 | */ | |
716 | void | |
717 | cray_delete_tmpdir(char *login, int jid, uid_t uid) | |
718 | { | |
68187931 | 719 | static char jtmp[TPATHSIZ]; |
720 | struct stat statbuf; | |
9901cb37 | 721 | int child, c, wstat; |
68187931 | 722 | |
723 | for (c = 'a'; c <= 'z'; c++) { | |
724 | snprintf(jtmp, TPATHSIZ, "%s/jtmp.%06d%c", JTMPDIR, jid, c); | |
725 | if (stat(jtmp, &statbuf) == 0 && statbuf.st_uid == uid) | |
726 | break; | |
727 | } | |
ca5c7d6a | 728 | |
68187931 | 729 | if (c > 'z') |
730 | return; | |
ca5c7d6a | 731 | |
68187931 | 732 | if ((child = fork()) == 0) { |
8280a5ae | 733 | execl(CLEANTMPCMD, CLEANTMPCMD, login, jtmp, (char *)NULL); |
68187931 | 734 | fatal("cray_delete_tmpdir: execl of CLEANTMPCMD failed"); |
735 | } | |
ca5c7d6a | 736 | |
68187931 | 737 | while (waitpid(child, &wstat, 0) == -1 && errno == EINTR) |
738 | ; | |
ca5c7d6a | 739 | } |
740 | ||
741 | /* | |
742 | * Remove tmpdir on job termination. | |
743 | */ | |
744 | void | |
68187931 | 745 | cray_job_termination_handler(int sig) |
ca5c7d6a | 746 | { |
747 | int jid; | |
748 | char *login = NULL; | |
749 | struct jtab jtab; | |
750 | ||
56b54901 | 751 | debug("received signal %d",sig); |
ca5c7d6a | 752 | |
753 | if ((jid = waitjob(&jtab)) == -1 || | |
68187931 | 754 | (login = uid2nam(jtab.j_uid)) == NULL) |
755 | return; | |
ca5c7d6a | 756 | |
757 | cray_delete_tmpdir(login, jid, jtab.j_uid); | |
758 | } | |
759 | ||
ca5c7d6a | 760 | /* |
761 | * Set job id and create tmpdir directory. | |
762 | */ | |
68187931 | 763 | void |
ca5c7d6a | 764 | cray_init_job(struct passwd *pw) |
68187931 | 765 | { |
766 | int jid; | |
767 | int c; | |
768 | ||
769 | jid = setjob(pw->pw_uid, WJSIGNAL); | |
770 | if (jid < 0) | |
771 | fatal("System call setjob failure"); | |
772 | ||
773 | for (c = 'a'; c <= 'z'; c++) { | |
774 | snprintf(cray_tmpdir, TPATHSIZ, "%s/jtmp.%06d%c", JTMPDIR, jid, c); | |
775 | if (mkdir(cray_tmpdir, JTMPMODE) != 0) | |
776 | continue; | |
777 | if (chown(cray_tmpdir, pw->pw_uid, pw->pw_gid) != 0) { | |
778 | rmdir(cray_tmpdir); | |
779 | continue; | |
780 | } | |
781 | break; | |
782 | } | |
783 | ||
784 | if (c > 'z') | |
785 | cray_tmpdir[0] = '\0'; | |
786 | } | |
ca5c7d6a | 787 | |
788 | void | |
789 | cray_set_tmpdir(struct utmp *ut) | |
68187931 | 790 | { |
791 | int jid; | |
792 | struct jtab jbuf; | |
ca5c7d6a | 793 | |
68187931 | 794 | if ((jid = getjtab(&jbuf)) < 0) |
795 | return; | |
ca5c7d6a | 796 | |
797 | /* | |
798 | * Set jid and tmpdir in utmp record. | |
68187931 | 799 | */ |
ca5c7d6a | 800 | ut->ut_jid = jid; |
801 | strncpy(ut->ut_tpath, cray_tmpdir, TPATHSIZ); | |
68187931 | 802 | } |
c1ad5966 | 803 | #endif /* UNICOS */ |
804 | ||
805 | #ifdef _UNICOSMP | |
806 | #include <pwd.h> | |
807 | /* | |
808 | * Set job id and create tmpdir directory. | |
809 | */ | |
810 | void | |
811 | cray_init_job(struct passwd *pw) | |
812 | { | |
813 | initrm_silent(pw->pw_uid); | |
814 | return; | |
815 | } | |
816 | #endif /* _UNICOSMP */ |