4 * Copyright 1990,1991 by the Massachusetts Institute of Technology
5 * For distribution and copying rights, see the file "mit-copyright.h"
8 * Copyright (c) 2005, 2006
9 * The Linux Box Corporation
12 * Permission is granted to use, copy, create derivative works
13 * and redistribute this software and such derivative works
14 * for any purpose, so long as the name of the Linux Box
15 * Corporation is not used in any advertising or publicity
16 * pertaining to the use or distribution of this software
17 * without specific, written prior authorization. If the
18 * above copyright notice or any other identification of the
19 * Linux Box Corporation is included in any copy of any
20 * portion of this software, then the disclaimer below must
23 * This software is provided as is, without representation
24 * from the Linux Box Corporation as to its fitness for any
25 * purpose, and without warranty by the Linux Box Corporation
26 * of any kind, either express or implied, including
27 * without limitation the implied warranties of
28 * merchantability and fitness for a particular purpose. The
29 * regents of the Linux Box Corporation shall not be liable
30 * for any damages, including special, indirect, incidental, or
31 * consequential damages, with respect to any claim arising
32 * out of or in connection with the use of the software, even
33 * if it has been or is hereafter advised of the possibility of
37 #include <afsconfig.h>
42 #include <sys/types.h>
57 #include <sys/param.h>
58 #include <sys/errno.h>
60 #include <sys/socket.h>
61 #include <netinet/in.h>
62 #include <arpa/inet.h>
67 #if defined(HAVE_ET_COM_ERR_H)
68 #include <et/com_err.h>
73 #ifndef HAVE_KERBEROSV_HEIM_ERR_H
74 #include <afs/com_err.h>
77 #include <afs/param.h>
79 #include <sys/ioccom.h>
82 /* Prevent inclusion of des.h to avoid conflicts with des types */
83 #define NO_DES_H_INCLUDE
86 #include <afs/cellconfig.h>
88 #include <afs/venus.h>
89 #include <afs/ptserver.h>
90 #include <afs/ptuser.h>
91 #include <afs/dirpath.h>
94 #include "linked_list.h"
96 #ifdef HAVE_KRB5_CREDS_KEYBLOCK
99 #ifdef HAVE_KRB5_CREDS_SESSION
100 #define USING_HEIMDAL 1
106 #ifndef AFS_TRY_FULL_PRINC
107 #define AFS_TRY_FULL_PRINC 1
108 #endif /* AFS_TRY_FULL_PRINC */
110 #define AKLOG_TRYAGAIN -1
111 #define AKLOG_SUCCESS 0
112 #define AKLOG_USAGE 1
113 #define AKLOG_SOMETHINGSWRONG 2
115 #define AKLOG_KERBEROS 4
116 #define AKLOG_TOKEN 5
117 #define AKLOG_BADPATH 6
133 /* RedHat 4.x doesn't seem to define this */
134 #define MAXSYMLINKS 5
137 #define DIR '/' /* Character that divides directories */
138 #define DIRSTRING "/" /* String form of above */
139 #define VOLMARKER ':' /* Character separating cellname from mntpt */
140 #define VOLMARKERSTRING ":" /* String form of above */
144 char realm[REALM_SZ];
147 struct afsconf_cell ak_cellconfig; /* General information about the cell */
148 static char linkedcell[MAXCELLCHARS+1];
149 static char linkedcell2[MAXCELLCHARS+1];
150 static krb5_ccache _krb425_ccache = NULL;
153 * Why doesn't AFS provide these prototypes?
156 extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32);
162 extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *, int);
163 static int isdir(char *, unsigned char *);
164 static krb5_error_code get_credv5(krb5_context context, char *, char *,
165 char *, krb5_creds **);
166 static int get_user_realm(krb5_context, char *);
168 #define TRYAGAIN(x) (x == AKLOG_TRYAGAIN || \
169 x == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN || \
170 x == KRB5KRB_ERR_GENERIC)
172 #if defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
174 #define get_princ_str(c, p, n) krb5_princ_component(c, p, n)->data
175 #define get_princ_len(c, p, n) krb5_princ_component(c, p, n)->length
176 #define second_comp(c, p) (krb5_princ_size(c, p) > 1)
177 #define realm_data(c, p) krb5_princ_realm(c, p)->data
178 #define realm_len(c, p) krb5_princ_realm(c, p)->length
180 #elif defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING)
182 #define get_princ_str(c, p, n) krb5_principal_get_comp_string(c, p, n)
183 #define get_princ_len(c, p, n) strlen(krb5_principal_get_comp_string(c, p, n))
184 #define second_comp(c, p) (krb5_principal_get_comp_string(c, p, 1) != NULL)
185 #define realm_data(c, p) krb5_realm_data(krb5_principal_get_realm(c, p))
186 #define realm_len(c, p) krb5_realm_length(krb5_principal_get_realm(c, p))
189 #error "Must have either krb5_princ_size or krb5_principal_get_comp_string"
192 #if !defined(HAVE_KRB5_ENCRYPT_TKT_PART) && defined(HAVE_ENCODE_KRB5_ENC_TKT_PART) && defined(HAVE_KRB5_C_ENCRYPT)
193 extern krb5_error_code encode_krb5_enc_tkt_part (const krb5_enc_tkt_part *rep,
197 krb5_encrypt_tkt_part(krb5_context context,
198 const krb5_keyblock *key,
205 if ((code = encode_krb5_enc_tkt_part(ticket->enc_part2, &data)))
207 if ((code = krb5_c_encrypt_length(context, key->enctype,
208 data->length, &enclen)))
210 ticket->enc_part.ciphertext.length = enclen;
211 if (!(ticket->enc_part.ciphertext.data = malloc(enclen))) {
215 if ((code = krb5_c_encrypt(context, key, KRB5_KEYUSAGE_KDC_REP_TICKET,
216 0, data, &ticket->enc_part))) {
217 free(ticket->enc_part.ciphertext.data);
218 ticket->enc_part.ciphertext.data = 0;
230 #if defined(HAVE_KRB5_CREDS_KEYBLOCK)
232 #define get_cred_keydata(c) c->keyblock.contents
233 #define get_cred_keylen(c) c->keyblock.length
234 #define get_creds_enctype(c) c->keyblock.enctype
236 #elif defined(HAVE_KRB5_CREDS_SESSION)
238 #define get_cred_keydata(c) c->session.keyvalue.data
239 #define get_cred_keylen(c) c->session.keyvalue.length
240 #define get_creds_enctype(c) c->session.keytype
243 #error "Must have either keyblock or session member of krb5_creds"
246 #if !defined(HAVE_KRB5_524_CONVERT_CREDS) && defined(HAVE_KRB524_CONVERT_CREDS_KDC)
247 #define krb5_524_convert_creds krb524_convert_creds_kdc
248 #elif !defined(HAVE_KRB5_524_CONVERT_CREDS) && !defined(HAVE_KRB524_CONVERT_CREDS_KDC)
249 #define HAVE_NO_KRB5_524
253 #define deref_keyblock_enctype(kb) \
256 #define deref_entry_keyblock(entry) \
259 #define deref_session_key(creds) \
262 #define deref_enc_tkt_addrs(tkt) \
265 #define deref_enc_length(enc) \
266 ((enc)->cipher.length)
268 #define deref_enc_data(enc) \
271 #define krb5_free_keytab_entry_contents krb5_kt_free_entry
274 #define deref_keyblock_enctype(kb) \
277 #define deref_entry_keyblock(entry) \
280 #define deref_session_key(creds) \
283 #define deref_enc_tkt_addrs(tkt) \
286 #define deref_enc_length(enc) \
287 ((enc)->ciphertext.length)
289 #define deref_enc_data(enc) \
290 ((enc)->ciphertext.data)
294 #define deref_entry_enctype(entry) \
295 deref_keyblock_enctype(&deref_entry_keyblock(entry))
298 * Provide a replacement for strerror if we don't have it
301 #ifndef HAVE_STRERROR
302 extern char *sys_errlist[];
303 #define strerror(x) sys_errlist[x]
304 #endif /* HAVE_STRERROR */
306 static char *progname = NULL; /* Name of this program */
307 static int dflag = FALSE; /* Give debugging information */
308 static int noauth = FALSE; /* If true, don't try to get tokens */
309 static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */
310 static int hosts = FALSE; /* Are we keeping track of hosts? */
311 static int noprdb = FALSE; /* Skip resolving name to id? */
312 static int linked = FALSE; /* try for both AFS nodes */
313 static int afssetpag = FALSE; /* setpag for AFS */
314 static int force = FALSE; /* Bash identical tokens? */
315 static int do524 = FALSE; /* Should we do 524 instead of rxkad2b? */
316 static char *keytab = NULL; /* keytab for akimpersonate */
317 static char *client = NULL; /* client principal for akimpersonate */
318 static linked_list zsublist; /* List of zephyr subscriptions */
319 static linked_list hostlist; /* List of host addresses */
320 static linked_list authedcells; /* List of cells already logged to */
322 /* A com_error bodge. The idea here is that this routine lets us lookup
323 * things in the system com_err, if the AFS one just tells us the error
328 redirect_errors(const char *who, afs_int32 code, const char *fmt, va_list ap)
335 const char *str = afs_error_message(code);
336 if (strncmp(str, "unknown", strlen("unknown")) == 0) {
337 str = error_message(code);
343 vfprintf(stderr, fmt, ap);
350 copy_cellinfo(cellinfo_t *cellinfo)
352 cellinfo_t *new_cellinfo;
354 if ((new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t))))
355 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
357 return ((char *)new_cellinfo);
362 get_cellconfig(char *cell, struct afsconf_cell *cellconfig, char *local_cell,
365 int status = AKLOG_SUCCESS;
366 struct afsconf_dir *configdir;
368 memset(local_cell, 0, sizeof(local_cell));
369 memset(cellconfig, 0, sizeof(*cellconfig));
371 if (!(configdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) {
373 "%s: can't get afs configuration (afsconf_Open(%s))\n",
374 progname, AFSDIR_CLIENT_ETC_DIRPATH);
378 if (afsconf_GetLocalCell(configdir, local_cell, MAXCELLCHARS)) {
379 fprintf(stderr, "%s: can't determine local cell.\n", progname);
383 if ((cell == NULL) || (cell[0] == 0))
386 linkedcell[0] = '\0';
387 if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) {
388 fprintf(stderr, "%s: Can't get information about cell %s.\n",
393 if (cellconfig->linkedCell)
394 strncpy(linkedcell,cellconfig->linkedCell,MAXCELLCHARS);
396 afsconf_Close(configdir);
402 * Log to a cell. If the cell has already been logged to, return without
403 * doing anything. Otherwise, log to it and mark that it has been logged
407 auth_to_cell(krb5_context context, char *cell, char *realm)
409 int status = AKLOG_SUCCESS;
410 char username[BUFSIZ]; /* To hold client username structure */
411 afs_int32 viceId; /* AFS uid of user */
413 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
414 char *realm_from_princ = 0 ; /* Calculated realm data */
415 char *realm_of_cell = 0; /* Pointer to realm we're using */
416 int retry; /* round, and round we go ... */
418 char local_cell[MAXCELLCHARS+1];
419 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
420 static char confname[512] = { 0 };
421 krb5_creds *v5cred = NULL;
422 struct ktc_principal aserver;
423 struct ktc_principal aclient;
424 struct ktc_token atoken, btoken;
426 memset(realm_of_user, 0, sizeof(realm_of_user));
428 if (confname[0] == '\0') {
429 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
430 confname[sizeof(confname) - 2] = '\0';
433 /* NULL or empty cell returns information on local cell */
434 if ((status = get_cellconfig(cell, &ak_cellconfig,
435 local_cell, linkedcell)))
438 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
439 cell_to_use[MAXCELLCHARS] = 0;
441 if (ll_string(&authedcells, ll_s_check, cell_to_use)) {
443 printf("Already authenticated to %s (or tried to)\n",
446 return(AKLOG_SUCCESS);
450 * Record that we have attempted to log to this cell. We do this
451 * before we try rather than after so that we will not try
452 * and fail repeatedly for one cell.
454 ll_string(&authedcells, ll_s_add, cell_to_use);
457 * Record this cell in the list of zephyr subscriptions. We may
458 * want zephyr subscriptions even if authentication fails.
459 * If this is done after we attempt to get tokens, aklog -zsubs
460 * can return something different depending on whether or not we
461 * are in -noauth mode.
463 if (ll_string(&zsublist, ll_s_add, cell_to_use) == LL_FAILURE) {
465 "%s: failure adding cell %s to zephyr subscriptions list.\n",
466 progname, cell_to_use);
469 if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) {
471 "%s: failure adding cell %s to zephyr subscriptions list.\n",
472 progname, local_cell);
478 printf("Authenticating to cell %s (server %s).\n",
479 cell_to_use, ak_cellconfig.hostName[0]);
482 if ((status = get_user_realm(context, realm_of_user))) {
483 fprintf(stderr, "%s: Couldn't determine realm of user:)",
485 afs_com_err(progname, status, " while getting realm");
486 return(AKLOG_KERBEROS);
493 /* This code tries principals in the following, much debated,
496 * If the realm is specified on the command line we do
497 * - afs/cell@COMMAND-LINE-REALM
498 * - afs@COMMAND-LINE-REALM
501 * - afs/cell@REALM-FROM-USERS-PRINCIPAL
502 * - afs/cell@krb5_get_host_realm(db-server)
503 * Then, if krb5_get_host_realm(db-server) is non-empty
504 * - afs@ krb5_get_host_realm(db-server)
506 * - afs/cell@ upper-case-domain-of-db-server
507 * - afs@ upper-case-domain-of-db-server
509 * In all cases, the 'afs@' variant is only tried where the
510 * cell and the realm match case-insensitively.
513 /* Cell on command line - use that one */
514 if (realm && realm[0]) {
515 realm_of_cell = realm;
516 status = AKLOG_TRYAGAIN;
518 printf("We were told to authenticate to realm %s.\n",
522 /* Initially, try using afs/cell@USERREALM */
524 printf("Trying to authenticate to user's realm %s.\n",
528 realm_of_cell = realm_of_user;
529 status = get_credv5(context, AFSKEY, cell_to_use,
530 realm_of_cell, &v5cred);
532 /* If that failed, try to determine the realm from the name of
533 * one of the DB servers */
534 if (TRYAGAIN(status)) {
535 realm_of_cell = afs_realm_of_cell(context, &ak_cellconfig,
537 if (!realm_of_cell) {
539 "%s: Couldn't figure out realm for cell %s.\n",
540 progname, cell_to_use);
545 if (realm_of_cell[0])
546 printf("We've deduced that we need to authenticate"
547 " to realm %s.\n", realm_of_cell);
549 printf("We've deduced that we need to authenticate "
550 "using referrals.\n");
555 if (TRYAGAIN(status)) {
556 /* If we've got the full-princ-first option, or we're in a
557 * different realm from the cell - use the cell name as the
559 if (AFS_TRY_FULL_PRINC ||
560 strcasecmp(cell_to_use, realm_of_cell)!=0) {
561 status = get_credv5(context, AFSKEY, cell_to_use,
562 realm_of_cell, &v5cred);
564 /* If we failed & we've got an empty realm, then try
565 * calling afs_realm_for_cell again. */
566 if (TRYAGAIN(status) && !realm_of_cell[0]) {
567 /* This time, get the realm by taking the domain
568 * component of the db server and make it upper case */
569 realm_of_cell = afs_realm_of_cell(context,
570 &ak_cellconfig, TRUE);
571 if (!realm_of_cell) {
573 "%s: Couldn't figure out realm for cell "
574 "%s.\n", progname, cell_to_use);
578 printf("We've deduced that we need to authenticate"
579 " to realm %s.\n", realm_of_cell);
582 status = get_credv5(context, AFSKEY, cell_to_use,
583 realm_of_cell, &v5cred);
586 /* If the realm and cell name match, then try without an
587 * instance, but only if realm is non-empty */
589 if (TRYAGAIN(status) &&
590 strcasecmp(cell_to_use, realm_of_cell) == 0) {
591 status = get_credv5(context, AFSKEY, NULL,
592 realm_of_cell, &v5cred);
593 if (!AFS_TRY_FULL_PRINC && TRYAGAIN(status)) {
594 status = get_credv5(context, AFSKEY, cell_to_use,
595 realm_of_cell, &v5cred);
600 /* Try to find a service principal for this cell.
601 * Some broken MIT libraries return KRB5KRB_AP_ERR_MSG_TYPE upon
602 * the first attempt, so we try twice to be sure */
604 if (status == KRB5KRB_AP_ERR_MSG_TYPE && retry == 1)
612 printf("Kerberos error code returned by get_cred : %d\n",
615 fprintf(stderr, "%s: Couldn't get %s AFS tickets:\n",
616 progname, cell_to_use);
617 afs_com_err(progname, status, "while getting AFS tickets");
618 return(AKLOG_KERBEROS);
621 /* If we've got a valid ticket, and we still don't know the realm name
622 * try to figure it out from the contents of the ticket
624 #if !defined(USING_HEIMDAL) && defined(HAVE_KRB5_DECODE_TICKET)
625 if (strcmp(realm_of_cell, "") == 0) {
626 krb5_error_code code;
629 code = krb5_decode_ticket(&v5cred->ticket, &ticket);
633 "%s: Couldn't decode ticket to determine realm for "
635 progname, cell_to_use);
637 int len = realm_len(context, ticket->server);
638 /* This really shouldn't happen. */
639 if (len > REALM_SZ-1)
642 realm_from_princ = (char *) malloc(sizeof(char) * (len+1));
644 strncpy(realm_from_princ, realm_data(context, ticket->server),
646 realm_from_princ[len] = 0;
647 realm_of_cell = realm_from_princ;
649 krb5_free_ticket(context, ticket);
654 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
655 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
656 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
659 * The default is to use rxkad2b, which means we put in a full
660 * V5 ticket. If the user specifies -524, we talk to the
661 * 524 ticket converter.
665 char k4name[ANAME_SZ], k4inst[INST_SZ], k4realm[REALM_SZ];
666 #ifdef HAVE_NO_KRB5_524
672 printf("Using Kerberos V5 ticket natively\n");
674 #ifndef HAVE_NO_KRB5_524
675 status = krb5_524_conv_principal (context, v5cred->client,
680 afs_com_err(progname, status, "while converting principal "
681 "to Kerberos V4 format");
682 return(AKLOG_KERBEROS);
684 strcpy (username, k4name);
686 strcat (username, ".");
687 strcat (username, k4inst);
690 len = min(get_princ_len(context, v5cred->client, 0),
691 second_comp(context, v5cred->client) ?
692 MAXKTCNAMELEN - 2 : MAXKTCNAMELEN - 1);
693 strncpy(username, get_princ_str(context, v5cred->client, 0), len);
694 username[len] = '\0';
696 if (second_comp(context, v5cred->client)) {
697 strcat(username, ".");
698 p = username + strlen(username);
699 len = min(get_princ_len(context, v5cred->client, 1),
700 MAXKTCNAMELEN - strlen(username) - 1);
701 strncpy(p, get_princ_str(context, v5cred->client, 1), len);
706 memset(&atoken, 0, sizeof(atoken));
707 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
708 atoken.startTime = v5cred->times.starttime;;
709 atoken.endTime = v5cred->times.endtime;
710 memcpy(&atoken.sessionKey, get_cred_keydata(v5cred),
711 get_cred_keylen(v5cred));
712 atoken.ticketLen = v5cred->ticket.length;
713 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
714 #ifndef HAVE_NO_KRB5_524
719 printf("Using Kerberos 524 translator service\n");
721 status = krb5_524_convert_creds(context, v5cred, &cred);
724 afs_com_err(progname, status, "while converting tickets "
725 "to Kerberos V4 format");
726 return(AKLOG_KERBEROS);
729 strcpy (username, cred.pname);
731 strcat (username, ".");
732 strcat (username, cred.pinst);
735 atoken.kvno = cred.kvno;
736 atoken.startTime = cred.issue_date;
738 * It seems silly to go through a bunch of contortions to
739 * extract the expiration time, when the v5 credentials already
740 * has the exact time! Let's use that instead.
742 * Note that this isn't a security hole, as the expiration time
743 * is also contained in the encrypted token
745 atoken.endTime = v5cred->times.endtime;
746 memcpy(&atoken.sessionKey, cred.session, 8);
747 atoken.ticketLen = cred.ticket_st.length;
748 memcpy(atoken.ticket, cred.ticket_st.dat, atoken.ticketLen);
749 #endif /* HAVE_NO_KRB5_524 */
753 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
754 atoken.kvno == btoken.kvno &&
755 atoken.ticketLen == btoken.ticketLen &&
756 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
757 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen)) {
760 printf("Identical tokens already exist; skipping.\n");
771 printf("Not resolving name %s to id (-noprdb set)\n",
776 if (strcmp(realm_of_user, realm_of_cell)) {
777 strcat(username, "@");
778 strcat(username, realm_of_user);
782 printf("About to resolve name %s to id in cell %s.\n",
783 username, aserver.cell);
786 if (!pr_Initialize (0, confname, aserver.cell))
787 status = pr_SNameToId (username, &viceId);
791 printf("Error %d\n", status);
793 printf("Id %d\n", (int) viceId);
798 * This code is taken from cklog -- it lets people
799 * automatically register with the ptserver in foreign cells
802 #ifdef ALLOW_REGISTER
803 if ((status == 0) && (viceId == ANONYMOUSID) &&
804 (strcmp(realm_of_user, realm_of_cell) != 0)) {
806 printf("doing first-time registration of %s "
807 "at %s\n", username, cell_to_use);
810 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
811 strcpy(aclient.instance, "");
812 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
813 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, 0))) {
814 afs_com_err(progname, status,
815 "while obtaining tokens for cell %s",
817 status = AKLOG_TOKEN;
821 * In case you're wondering, we don't need to change the
822 * filename here because we're still connecting to the
823 * same cell -- we're just using a different authentication
827 if ((status = pr_Initialize(1L, confname, aserver.cell))) {
828 printf("Error %d\n", status);
831 if ((status = pr_CreateUser(username, &viceId))) {
832 fprintf(stderr, "%s: %s so unable to create remote PTS "
833 "user %s in cell %s (status: %d).\n", progname,
834 afs_error_message(status), username, cell_to_use,
836 viceId = ANONYMOUSID;
838 printf("created cross-cell entry for %s (Id %d) at %s\n",
839 username, viceId, cell_to_use);
842 #endif /* ALLOW_REGISTER */
845 * This is a crock, but it is Transarc's crock, so we have to play
846 * along in order to get the functionality. The way the afs id is
847 * stored is as a string in the username field of the token.
848 * Contrary to what you may think by looking at the code for
849 * tokens, this hack (AFS ID %d) will not work if you change %d
853 if ((status == 0) && (viceId != ANONYMOUSID)) {
854 sprintf(username, "AFS ID %d", (int) viceId);
859 fprintf(stdout, "Set username to %s\n", username);
862 /* Reset the "aclient" structure before we call ktc_SetToken.
863 * This structure was first set by the ktc_GetToken call when
864 * we were comparing whether identical tokens already existed.
866 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
867 strcpy(aclient.instance, "");
868 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
871 printf("Setting tokens. %s / %s @ %s \n",
872 aclient.name, aclient.instance, aclient.cell );
874 #ifndef AFS_AIX51_ENV
875 /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before
876 * this routine, it will not add the token. It is not clear what
877 * is going on here! So we will do the following operation.
878 * On AIX 5, it causes the parent program to die, so we won't.
880 write(2,"",0); /* dummy write */
882 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
883 afs_com_err(progname, status, "while obtaining tokens for cell %s",
885 status = AKLOG_TOKEN;
890 printf("Noauth mode; not authenticating.\n");
897 get_afs_mountpoint(char *file, char *mountpoint, int size)
900 char V ='V'; /* AFS has problem on Sun with pioctl */
902 char our_file[MAXPATHLEN + 1];
904 char *last_component;
905 struct ViceIoctl vio;
906 char cellname[BUFSIZ];
908 memset(our_file, 0, sizeof(our_file));
909 strcpy(our_file, file);
911 if ((last_component = strrchr(our_file, DIR))) {
912 *last_component++ = 0;
913 parent_dir = our_file;
916 last_component = our_file;
920 memset(cellname, 0, sizeof(cellname));
922 vio.in = last_component;
923 vio.in_size = strlen(last_component)+1;
925 vio.out = mountpoint;
927 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) {
928 if (strchr(mountpoint, VOLMARKER) == NULL) {
930 vio.in_size = strlen(file) + 1;
931 vio.out_size = sizeof(cellname);
934 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) {
935 strcat(cellname, VOLMARKERSTRING);
936 strcat(cellname, mountpoint + 1);
937 memset(mountpoint + 1, 0, size - 1);
938 strcpy(mountpoint + 1, cellname);
948 * This routine each time it is called returns the next directory
949 * down a pathname. It resolves all symbolic links. The first time
950 * it is called, it should be called with the name of the path
951 * to be descended. After that, it should be called with the arguemnt
955 next_path(char *origpath)
957 static char path[MAXPATHLEN + 1];
958 static char pathtocheck[MAXPATHLEN + 1];
960 int link = FALSE; /* Is this a symbolic link? */
961 char linkbuf[MAXPATHLEN + 1];
962 char tmpbuf[MAXPATHLEN + 1];
964 static char *last_comp; /* last component of directory name */
965 static char *elast_comp; /* End of last component */
969 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
971 /* If we are given something for origpath, we are initializing only. */
973 memset(path, 0, sizeof(path));
974 memset(pathtocheck, 0, sizeof(pathtocheck));
975 strcpy(path, origpath);
981 /* We were not given origpath; find then next path to check */
983 /* If we've gotten all the way through already, return NULL */
984 if (last_comp == NULL)
988 while (*last_comp == DIR)
989 strncat(pathtocheck, last_comp++, 1);
990 len = (elast_comp = strchr(last_comp, DIR))
991 ? elast_comp - last_comp : strlen(last_comp);
992 strncat(pathtocheck, last_comp, len);
993 memset(linkbuf, 0, sizeof(linkbuf));
994 if ((link = (readlink(pathtocheck, linkbuf,
995 sizeof(linkbuf)) > 0))) {
996 if (++symlinkcount > MAXSYMLINKS) {
997 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
1000 memset(tmpbuf, 0, sizeof(tmpbuf));
1002 strcpy(tmpbuf, elast_comp);
1003 if (linkbuf[0] == DIR) {
1005 * If this is a symbolic link to an absolute path,
1006 * replace what we have by the absolute path.
1008 memset(path, 0, strlen(path));
1009 memcpy(path, linkbuf, sizeof(linkbuf));
1010 strcat(path, tmpbuf);
1013 memset(pathtocheck, 0, sizeof(pathtocheck));
1017 * If this is a symbolic link to a relative path,
1018 * replace only the last component with the link name.
1020 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
1021 strcat(path, tmpbuf);
1023 if ((t = strrchr(pathtocheck, DIR))) {
1025 memset(t, 0, strlen(t));
1028 memset(pathtocheck, 0, sizeof(pathtocheck));
1032 last_comp = elast_comp;
1036 return(pathtocheck);
1040 add_hosts(char *file)
1043 char V = 'V'; /* AFS has problem on SunOS */
1045 struct ViceIoctl vio;
1046 char outbuf[BUFSIZ];
1052 memset(outbuf, 0, sizeof(outbuf));
1054 vio.out_size = sizeof(outbuf);
1059 printf("Getting list of hosts for %s\n", file);
1061 /* Don't worry about errors. */
1062 if (!pioctl(file, VIOCWHEREIS, &vio, 1)) {
1063 phosts = (long *) outbuf;
1066 * Lists hosts that we care about. If ALLHOSTS is defined,
1067 * then all hosts that you ever may possible go through are
1068 * included in this list. If not, then only hosts that are
1069 * the only ones appear. That is, if a volume you must use
1070 * is replaced on only one server, that server is included.
1071 * If it is replicated on many servers, then none are included.
1072 * This is not perfect, but the result is that people don't
1073 * get subscribed to a lot of instances of FILSRV that they
1074 * probably won't need which reduces the instances of
1075 * people getting messages that don't apply to them.
1078 if (phosts[1] != '\0')
1081 for (i = 0; phosts[i]; i++) {
1083 in.s_addr = phosts[i];
1085 printf("Got host %s\n", inet_ntoa(in));
1087 ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in));
1089 if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) {
1091 printf("Got host %s\n", hp->h_name);
1093 ll_string(&zsublist, ll_s_add, hp->h_name);
1100 * This routine descends through a path to a directory, logging to
1101 * every cell it encounters along the way.
1104 auth_to_path(krb5_context context, char *path)
1106 int status = AKLOG_SUCCESS;
1107 int auth_to_cell_status = AKLOG_SUCCESS;
1110 char pathtocheck[MAXPATHLEN + 1];
1111 char mountpoint[MAXPATHLEN + 1];
1120 strcpy(pathtocheck, path);
1122 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL) {
1123 fprintf(stderr, "Unable to find current working directory:\n");
1124 fprintf(stderr, "%s\n", pathtocheck);
1125 fprintf(stderr, "Try an absolute pathname.\n");
1126 exit(AKLOG_BADPATH);
1129 strcat(pathtocheck, DIRSTRING);
1130 strcat(pathtocheck, path);
1133 next_path(pathtocheck);
1135 /* Go on to the next level down the path */
1136 while ((nextpath = next_path(NULL))) {
1137 strcpy(pathtocheck, nextpath);
1139 printf("Checking directory %s\n", pathtocheck);
1142 * If this is an afs mountpoint, determine what cell from
1143 * the mountpoint name which is of the form
1144 * #cellname:volumename or %cellname:volumename.
1146 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) {
1147 /* skip over the '#' or '%' */
1148 cell = mountpoint + 1;
1149 /* Add this (cell:volumename) to the list of zsubs */
1151 ll_string(&zsublist, ll_s_add, cell);
1153 add_hosts(pathtocheck);
1154 if ((endofcell = strchr(mountpoint, VOLMARKER))) {
1156 if ((auth_to_cell_status = auth_to_cell(context, cell, NULL))) {
1157 if (status == AKLOG_SUCCESS)
1158 status = auth_to_cell_status;
1159 else if (status != auth_to_cell_status)
1160 status = AKLOG_SOMETHINGSWRONG;
1165 if (isdir(pathtocheck, &isdirectory) < 0) {
1167 * If we've logged and still can't stat, there's
1170 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1171 pathtocheck, strerror(errno));
1172 return(AKLOG_BADPATH);
1174 else if (! isdirectory) {
1175 /* Allow only directories */
1176 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1178 return(AKLOG_BADPATH);
1188 /* Print usage message and exit */
1192 fprintf(stderr, "\nUsage: %s %s%s%s\n", progname,
1193 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1194 "[[-p | -path] pathname]\n",
1195 " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
1197 #ifndef HAVE_NO_KRB5_524
1201 fprintf(stderr, " -d gives debugging information.\n");
1202 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1203 fprintf(stderr, " pathname is the name of a directory to which ");
1204 fprintf(stderr, "you wish to authenticate.\n");
1205 fprintf(stderr, " -zsubs gives zephyr subscription information.\n");
1206 fprintf(stderr, " -hosts gives host address information.\n");
1207 fprintf(stderr, " -noauth does not attempt to get tokens.\n");
1208 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1209 fprintf(stderr, " -force means replace identical tickets. \n");
1210 fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
1211 fprintf(stderr, " -setpag set the AFS process authentication group.\n");
1212 #ifndef HAVE_NO_KRB5_524
1213 fprintf(stderr, " -524 means use the 524 converter instead of V5 directly\n");
1215 fprintf(stderr, " No commandline arguments means ");
1216 fprintf(stderr, "authenticate to the local cell.\n");
1217 fprintf(stderr, "\n");
1222 main(int argc, char *argv[])
1224 krb5_context context;
1225 int status = AKLOG_SUCCESS;
1227 int somethingswrong = FALSE;
1229 cellinfo_t cellinfo;
1231 extern char *progname; /* Name of this program */
1233 extern int dflag; /* Debug mode */
1235 int cmode = FALSE; /* Cellname mode */
1236 int pmode = FALSE; /* Path name mode */
1238 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1239 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1240 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1242 linked_list cells; /* List of cells to log to */
1243 linked_list paths; /* List of paths to log to */
1246 memset(&cellinfo, 0, sizeof(cellinfo));
1248 memset(realm, 0, sizeof(realm));
1249 memset(cell, 0, sizeof(cell));
1250 memset(path, 0, sizeof(path));
1258 /* Store the program name here for error messages */
1259 if ((progname = strrchr(argv[0], DIR)))
1264 krb5_init_context(&context);
1265 initialize_ktc_error_table ();
1266 afs_set_com_err_hook(redirect_errors);
1269 * Enable DES enctypes, which are currently still required for AFS.
1270 * krb5_allow_weak_crypto is MIT Kerberos 1.8. krb5_enctype_enable is
1273 #if defined(HAVE_KRB5_ALLOW_WEAK_CRYPTO)
1274 krb5_allow_weak_crypto(context, 1);
1275 #elif defined(HAVE_KRB5_ENCTYPE_ENABLE)
1276 i = krb5_enctype_valid(context, ETYPE_DES_CBC_CRC);
1278 krb5_enctype_enable(context, ETYPE_DES_CBC_CRC);
1281 /* Initialize list of cells to which we have authenticated */
1282 ll_init(&authedcells);
1284 /* Parse commandline arguments and make list of what to do. */
1285 for (i = 1; i < argc; i++) {
1286 if (strcmp(argv[i], "-d") == 0)
1288 else if (strcmp(argv[i], "-noauth") == 0)
1290 else if (strcmp(argv[i], "-zsubs") == 0)
1292 else if (strcmp(argv[i], "-hosts") == 0)
1294 else if (strcmp(argv[i], "-noprdb") == 0)
1296 else if (strcmp(argv[i], "-linked") == 0)
1298 else if (strcmp(argv[i], "-force") == 0)
1300 #ifndef HAVE_NO_KRB5_524
1301 else if (strcmp(argv[i], "-524") == 0)
1304 else if (strcmp(argv[i], "-setpag") == 0)
1306 else if (((strcmp(argv[i], "-cell") == 0) ||
1307 (strcmp(argv[i], "-c") == 0)) && !pmode)
1310 strcpy(cell, argv[i]);
1314 else if ((strcmp(argv[i], "-keytab") == 0))
1320 else if ((strcmp(argv[i], "-principal") == 0))
1326 else if (((strcmp(argv[i], "-path") == 0) ||
1327 (strcmp(argv[i], "-p") == 0)) && !cmode)
1330 strcpy(path, argv[i]);
1335 else if (argv[i][0] == '-')
1337 else if (!pmode && !cmode) {
1338 if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) ||
1339 (strcmp(argv[i], "..") == 0)) {
1341 strcpy(path, argv[i]);
1345 strcpy(cell, argv[i]);
1352 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) {
1355 strcpy(realm, argv[i]);
1359 /* Add this cell to list of cells */
1360 strcpy(cellinfo.cell, cell);
1361 strcpy(cellinfo.realm, realm);
1362 if ((cur_node = ll_add_node(&cells, ll_tail))) {
1364 if ((new_cellinfo = copy_cellinfo(&cellinfo)))
1365 ll_add_data(cur_node, new_cellinfo);
1368 "%s: failure copying cellinfo.\n", progname);
1373 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1377 memset(&cellinfo, 0, sizeof(cellinfo));
1379 memset(cell, 0, sizeof(cell));
1380 memset(realm, 0, sizeof(realm));
1383 /* Add this path to list of paths */
1384 if ((cur_node = ll_add_node(&paths, ll_tail))) {
1386 if ((new_path = strdup(path)))
1387 ll_add_data(cur_node, new_path);
1389 fprintf(stderr, "%s: failure copying path name.\n",
1395 fprintf(stderr, "%s: failure adding path to paths list.\n",
1400 memset(path, 0, sizeof(path));
1404 /* If nothing was given, log to the local cell. */
1405 if ((cells.nelements + paths.nelements) == 0) {
1408 status = auth_to_cell(context, NULL, NULL);
1410 /* If this cell is linked to a DCE cell, and user requested -linked,
1411 * get tokens for both. This is very useful when the AFS cell is
1412 * linked to a DFS cell and this system does not also have DFS.
1415 if (!status && linked && linkedcell[0]) {
1416 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1418 printf("Linked cell: %s\n", linkedcell);
1420 status = auth_to_cell(context, linkedcell2, NULL);
1424 * Local hack - if the person has a file in their home
1425 * directory called ".xlog", read that for a list of
1426 * extra cells to authenticate to
1429 if ((pwd = getpwuid(getuid())) != NULL) {
1432 char fcell[100], xlog_path[512];
1434 strcpy(xlog_path, pwd->pw_dir);
1435 strcat(xlog_path, "/.xlog");
1437 if ((stat(xlog_path, &sbuf) == 0) &&
1438 ((f = fopen(xlog_path, "r")) != NULL)) {
1441 printf("Reading %s for cells to authenticate to.\n",
1445 while (fgets(fcell, 100, f) != NULL) {
1448 fcell[strlen(fcell) - 1] = '\0';
1451 printf("Found cell %s in %s.\n", fcell, xlog_path);
1454 auth_status = auth_to_cell(context, fcell, NULL);
1455 if (status == AKLOG_SUCCESS)
1456 status = auth_status;
1458 status = AKLOG_SOMETHINGSWRONG;
1464 /* Log to all cells in the cells list first */
1465 for (cur_node = cells.first; cur_node; cur_node = cur_node->next) {
1466 memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo));
1467 if ((status = auth_to_cell(context, cellinfo.cell, cellinfo.realm)))
1470 if (linked && linkedcell[0]) {
1471 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1473 printf("Linked cell: %s\n", linkedcell);
1475 if ((status = auth_to_cell(context,linkedcell2,
1482 /* Then, log to all paths in the paths list */
1483 for (cur_node = paths.first; cur_node; cur_node = cur_node->next) {
1484 if ((status = auth_to_path(context, cur_node->data)))
1489 * If only one thing was logged to, we'll return the status
1490 * of the single call. Otherwise, we'll return a generic
1491 * something failed status.
1493 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1494 status = AKLOG_SOMETHINGSWRONG;
1497 /* If we are keeping track of zephyr subscriptions, print them. */
1499 for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) {
1500 printf("zsub: %s\n", cur_node->data);
1503 /* If we are keeping track of host information, print it. */
1505 for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) {
1506 printf("host: %s\n", cur_node->data);
1513 isdir(char *path, unsigned char *val)
1515 struct stat statbuf;
1517 if (lstat(path, &statbuf) < 0)
1520 if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
1528 static krb5_error_code
1529 get_credv5_akimpersonate(krb5_context context,
1531 krb5_principal service_principal,
1532 krb5_principal client_principal,
1535 int *allowed_enctypes,
1537 krb5_creds** out_creds /* out */ )
1539 #if defined(USING_HEIMDAL) || (defined(HAVE_ENCODE_KRB5_ENC_TKT) && defined(HAVE_ENCODE_KRB5_TICKET) && defined(HAVE_KRB5_C_ENCRYPT))
1540 krb5_error_code code;
1542 krb5_kt_cursor cursor[1];
1543 krb5_keytab_entry entry[1];
1545 krb5_creds *creds = 0;
1546 krb5_enctype enctype;
1548 krb5_keyblock session_key[1];
1550 Ticket ticket_reply[1];
1551 EncTicketPart enc_tkt_reply[1];
1552 krb5_address address[30];
1553 krb5_addresses faddr[1];
1555 time_t temp_time[2];
1557 krb5_ticket ticket_reply[1];
1558 krb5_enc_tkt_part enc_tkt_reply[1];
1559 krb5_address address[30], *faddr[30];
1563 static int any_enctype[] = {0};
1565 if (!(creds = malloc(sizeof *creds))) {
1569 if (!allowed_enctypes)
1570 allowed_enctypes = any_enctype;
1573 enctype = 0; /* AKIMPERSONATE_IGNORE_ENCTYPE */
1574 kvno = 0; /* AKIMPERSONATE_IGNORE_VNO */
1575 memset((char*)creds, 0, sizeof *creds);
1576 memset((char*)entry, 0, sizeof *entry);
1577 memset((char*)session_key, 0, sizeof *session_key);
1578 memset((char*)ticket_reply, 0, sizeof *ticket_reply);
1579 memset((char*)enc_tkt_reply, 0, sizeof *enc_tkt_reply);
1580 code = krb5_kt_resolve(context, keytab, &kt);
1583 afs_com_err(progname, code, "while resolving keytab %s", keytab);
1585 afs_com_err(progname, code, "while resolving default keytab");
1589 if (service_principal) {
1590 for (i = 0; (enctype = allowed_enctypes[i]) || !i; ++i) {
1591 code = krb5_kt_get_entry(context,
1598 if (allowed_enctypes[i])
1599 deref_keyblock_enctype(session_key) = allowed_enctypes[i];
1604 afs_com_err(progname, code,"while scanning keytab entries");
1608 krb5_keytab_entry new[1];
1610 memset(new, 0, sizeof *new);
1611 if ((code == krb5_kt_start_seq_get(context, kt, cursor))) {
1612 afs_com_err(progname, code, "while starting keytab scan");
1615 while (!(code = krb5_kt_next_entry(context, kt, new, cursor))) {
1617 allowed_enctypes[i] && allowed_enctypes[i]
1618 != deref_entry_enctype(new); ++i)
1620 if ((!i || allowed_enctypes[i]) &&
1621 (best < 0 || best > i)) {
1622 krb5_free_keytab_entry_contents(context, entry);
1624 memset(new, 0, sizeof *new);
1625 } else krb5_free_keytab_entry_contents(context, new);
1627 if ((i = krb5_kt_end_seq_get(context, kt, cursor))) {
1628 afs_com_err(progname, i, "while ending keytab scan");
1633 afs_com_err(progname, code, "while scanning keytab");
1636 deref_keyblock_enctype(session_key) = deref_entry_enctype(entry);
1642 if ((code = krb5_generate_random_keyblock(context,
1643 deref_keyblock_enctype(session_key), session_key))) {
1644 afs_com_err(progname, code, "while making session key");
1647 enc_tkt_reply->flags.initial = 1;
1648 enc_tkt_reply->transited.tr_type = DOMAIN_X500_COMPRESS;
1649 enc_tkt_reply->cname = client_principal->name;
1650 enc_tkt_reply->crealm = client_principal->realm;
1651 enc_tkt_reply->key = *session_key;
1653 static krb5_data empty_string;
1654 enc_tkt_reply->transited.contents = empty_string;
1656 enc_tkt_reply->authtime = starttime;
1657 enc_tkt_reply->starttime = temp_time;
1658 *enc_tkt_reply->starttime = starttime;
1660 enc_tkt_reply->renew_till = temp_time + 1;
1661 *enc_tkt_reply->renew_till = endtime;
1663 enc_tkt_reply->endtime = endtime;
1665 if ((code = krb5_c_make_random_key(context,
1666 deref_keyblock_enctype(session_key), session_key))) {
1667 afs_com_err(progname, code, "while making session key");
1670 enc_tkt_reply->magic = KV5M_ENC_TKT_PART;
1671 #define DATACAST (unsigned char *)
1672 enc_tkt_reply->flags |= TKT_FLG_INITIAL;
1673 enc_tkt_reply->transited.tr_type = KRB5_DOMAIN_X500_COMPRESS;
1674 enc_tkt_reply->session = session_key;
1675 enc_tkt_reply->client = client_principal;
1677 static krb5_data empty_string;
1678 enc_tkt_reply->transited.tr_contents = empty_string;
1680 enc_tkt_reply->times.authtime = starttime;
1681 enc_tkt_reply->times.starttime = starttime; /* krb524init needs this */
1682 enc_tkt_reply->times.endtime = endtime;
1683 #endif /* USING_HEIMDAL */
1684 /* NB: We will discard address for now--ignoring caddr field
1685 in any case. MIT branch does what it always did. */
1687 if (paddress && *paddress) {
1688 deref_enc_tkt_addrs(enc_tkt_reply) = faddr;
1691 faddr->val = address;
1693 for (i = 0; paddress[i]; ++i) {
1695 address[i].addr_type = KRB5_ADDRESS_INET;
1696 address[i].address.data = (void*)(paddress+i);
1697 address[i].address.length = sizeof(paddress[i]);
1700 address[i].magic = KV5M_ADDRESS;
1701 address[i].addrtype = ADDRTYPE_INET;
1703 address[i].addrtype = AF_INET;
1705 address[i].contents = (void*)(paddress+i);
1706 address[i].length = sizeof(int);
1707 faddr[i] = address+i;
1718 ticket_reply->sname = service_principal->name;
1719 ticket_reply->realm = service_principal->realm;
1721 { /* crypto block */
1722 krb5_crypto crypto = 0;
1723 unsigned char *buf = 0;
1724 size_t buf_size, buf_len;
1727 ASN1_MALLOC_ENCODE(EncTicketPart, buf, buf_size,
1728 enc_tkt_reply, &buf_len, code);
1730 afs_com_err(progname, code, "while encoding ticket");
1734 if(buf_len != buf_size) {
1735 afs_com_err(progname, code,
1736 "%d != %d while encoding ticket (internal ASN.1 encoder error",
1740 what = "krb5_crypto_init";
1741 code = krb5_crypto_init(context,
1742 &deref_entry_keyblock(entry),
1743 deref_entry_enctype(entry),
1746 what = "krb5_encrypt";
1747 code = krb5_encrypt_EncryptedData(context, crypto, KRB5_KU_TICKET,
1748 buf, buf_len, entry->vno, &(ticket_reply->enc_part));
1751 if (crypto) krb5_crypto_destroy(context, crypto);
1753 afs_com_err(progname, code, "while %s", what);
1756 } /* crypto block */
1757 ticket_reply->enc_part.etype = deref_entry_enctype(entry);
1758 ticket_reply->enc_part.kvno = temp_vno;
1759 *ticket_reply->enc_part.kvno = entry->vno;
1760 ticket_reply->tkt_vno = 5;
1762 ticket_reply->server = service_principal;
1763 ticket_reply->enc_part2 = enc_tkt_reply;
1764 if ((code = krb5_encrypt_tkt_part(context, &deref_entry_keyblock(entry), ticket_reply))) {
1765 afs_com_err(progname, code, "while making ticket");
1768 ticket_reply->enc_part.kvno = entry->vno;
1771 /* Construct Creds */
1773 if ((code = krb5_copy_principal(context, service_principal,
1775 afs_com_err(progname, code, "while copying service principal");
1778 if ((code = krb5_copy_principal(context, client_principal,
1780 afs_com_err(progname, code, "while copying client principal");
1783 if ((code = krb5_copy_keyblock_contents(context, session_key,
1784 &deref_session_key(creds)))) {
1785 afs_com_err(progname, code, "while copying session key");
1790 creds->times.authtime = enc_tkt_reply->authtime;
1791 creds->times.starttime = *(enc_tkt_reply->starttime);
1792 creds->times.endtime = enc_tkt_reply->endtime;
1793 creds->times.renew_till = 0; /* *(enc_tkt_reply->renew_till) */
1794 creds->flags.b = enc_tkt_reply->flags;
1796 creds->times = enc_tkt_reply->times;
1797 creds->ticket_flags = enc_tkt_reply->flags;
1799 if (!deref_enc_tkt_addrs(enc_tkt_reply))
1801 else if ((code = krb5_copy_addresses(context,
1802 deref_enc_tkt_addrs(enc_tkt_reply), &creds->addresses))) {
1803 afs_com_err(progname, code, "while copying addresses");
1809 size_t creds_tkt_len;
1810 ASN1_MALLOC_ENCODE(Ticket, creds->ticket.data, creds->ticket.length,
1811 ticket_reply, &creds_tkt_len, code);
1813 afs_com_err(progname, code, "while encoding ticket");
1818 if ((code = encode_krb5_ticket(ticket_reply, &temp))) {
1819 afs_com_err(progname, code, "while encoding ticket");
1822 creds->ticket = *temp;
1829 if (deref_enc_data(&ticket_reply->enc_part))
1830 free(deref_enc_data(&ticket_reply->enc_part));
1831 krb5_free_keytab_entry_contents(context, entry);
1832 if (client_principal)
1833 krb5_free_principal(context, client_principal);
1834 if (service_principal)
1835 krb5_free_principal(context, service_principal);
1837 krb5_cc_close(context, cc);
1839 krb5_kt_close(context, kt);
1840 if (creds) krb5_free_creds(context, creds);
1841 krb5_free_keyblock_contents(context, session_key);
1850 static krb5_error_code
1851 get_credv5(krb5_context context, char *name, char *inst, char *realm,
1856 static krb5_principal client_principal = 0;
1859 printf("Getting tickets: %s%s%s@%s\n", name, (inst && inst[0])
1860 ? "/" : "", inst ? inst : "", realm);
1863 memset(&increds, 0, sizeof(increds));
1864 /* ANL - instance may be ptr to a null string. Pass null then */
1865 if ((r = krb5_build_principal(context, &increds.server,
1866 strlen(realm), realm,
1868 (inst && strlen(inst)) ? inst : (void *) NULL,
1874 if (!_krb425_ccache) {
1875 r = krb5_cc_default(context, &_krb425_ccache);
1879 if (!client_principal) {
1881 r = krb5_parse_name(context, client, &client_principal);
1883 r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1889 increds.client = client_principal;
1890 increds.times.endtime = 0;
1891 /* Ask for DES since that is what V4 understands */
1892 get_creds_enctype((&increds)) = ENCTYPE_DES_CBC_CRC;
1895 int allowed_enctypes[] = {
1896 ENCTYPE_DES_CBC_CRC, 0
1899 r = get_credv5_akimpersonate(context,
1908 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
1915 get_user_realm(krb5_context context, char *realm)
1917 static krb5_principal client_principal = 0;
1919 krb5_error_code r = 0;
1921 if (!_krb425_ccache)
1922 krb5_cc_default(context, &_krb425_ccache);
1923 if (!client_principal) {
1925 r = krb5_parse_name(context, client, &client_principal);
1927 r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1933 i = realm_len(context, client_principal);
1934 if (i > REALM_SZ-1) i = REALM_SZ-1;
1935 strncpy(realm,realm_data(context, client_principal), i);