2 * Copyright (C) 1989,2004 by the Massachusetts Institute of Technology
4 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
5 * distribute this software and its documentation for any purpose and
6 * without fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright notice and
8 * this permission notice appear in supporting documentation, and that
9 * the name of M.I.T. not be used in advertising or publicity pertaining
10 * to distribution of the software without specific, written prior
11 * permission. M.I.T. makes no representations about the suitability of
12 * this software for any purpose. It is provided "as is" without express
13 * or implied warranty.
17 * Copyright (c) 2007-2008 Secure Endpoints Inc.
19 * All rights reserved.
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
25 * * Redistributions of source code must retain the above copyright
26 * notice, this list of conditions and the following disclaimer.
27 * * Neither the name of the Secure Endpoints Inc. nor the names of its
28 * contributors may be used to endorse or promote products derived
29 * from this software without specific prior written permission.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
35 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
36 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
37 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
38 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52 #include <sys/types.h>
64 #define CREDENTIALS void
67 #include <afs/ptserver.h>
68 #include <afs/ptuser.h>
73 #include <cm_config.h>
75 #include <cellconfig.h>
76 #include <pioctl_nt.h>
77 #include <smb_iocons.h>
81 #define __S_ISTYPE(mode, mask) (((mode) & _S_IFMT) == (mask))
82 #define S_ISDIR(mode) __S_ISTYPE((mode), _S_IFDIR)
84 #define DONT_HAVE_GET_AD_TKT
85 #define MAXSYMLINKS 255
88 /* Win32 uses get_krb_err_txt_entry(status) instead of krb_err_txt[status],
89 * so we use a bit of indirection like the GNU CVS sources.
91 #define krb_err_text(status) get_krb_err_txt_entry(status)
94 #define DRIVECOLON ':' /* Drive letter separator */
95 #define BDIR '\\' /* Other character that divides directories */
98 readlink(char *path, char *buf, int buffers)
103 char * getcwd(char*, size_t);
106 get_cellconfig_callback(void *cellconfig, struct sockaddr_in *addrp, char *namep)
108 struct afsconf_cell *cc = (struct afsconf_cell *) cellconfig;
110 cc->hostAddr[cc->numServers] = *addrp;
111 strcpy(cc->hostName[cc->numServers], namep);
117 #include <sys/param.h>
119 #include <arpa/inet.h>
120 #include <sys/socket.h>
123 #include <afs/param.h>
124 #include <afs/auth.h>
125 #include <afs/cellconfig.h>
126 #include <afs/vice.h>
127 #include <afs/venus.h>
128 #include <afs/ptserver.h>
130 #define krb_err_text(status) krb_err_txt[status]
132 /* Cheesy test for determining AFS 3.5. */
133 #ifndef AFSCONF_CLIENTNAME
138 #include <afs/dirpath.h>
140 #define AFSDIR_CLIENT_ETC_DIRPATH AFSCONF_CLIENTNAME
145 #include "linked_list.h"
150 #define AKLOG_SUCCESS 0
151 #define AKLOG_USAGE 1
152 #define AKLOG_SOMETHINGSWRONG 2
154 #define AKLOG_KERBEROS 4
155 #define AKLOG_TOKEN 5
156 #define AKLOG_BADPATH 6
158 #define AKLOG_KFW_NOT_INSTALLED 8
173 #define MAXSYMLINKS 15
176 #define DIR '/' /* Character that divides directories */
177 #define DIRSTRING "/" /* String form of above */
178 #define VOLMARKER ':' /* Character separating cellname from mntpt */
179 #define VOLMARKERSTRING ":" /* String form of above */
183 char realm[REALM_SZ];
187 static char *progname = NULL; /* Name of this program */
188 static int dflag = FALSE; /* Give debugging information */
189 static int noprdb = FALSE; /* Skip resolving name to id? */
190 static int force = FALSE; /* Bash identical tokens? */
191 static linked_list authedcells; /* List of cells already logged to */
193 static int usev5 = TRUE; /* use kerberos 5? */
194 static int use524 = FALSE; /* use krb524? */
195 static krb5_context context = 0;
196 static krb5_ccache _krb425_ccache = 0;
198 void akexit(int exit_code)
201 krb5_cc_close(context, _krb425_ccache);
203 krb5_free_context(context);
207 long GetLocalCell(struct afsconf_dir **pconfigdir, char *local_cell)
209 if (!(*pconfigdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH)))
211 fprintf(stderr, "%s: can't get afs configuration (afsconf_Open(%s))\n",
212 progname, AFSDIR_CLIENT_ETC_DIRPATH);
216 return afsconf_GetLocalCell(*pconfigdir, local_cell, MAXCELLCHARS);
219 long GetCellInfo(struct afsconf_dir **pconfigdir, char* cell,
220 struct afsconf_cell **pcellconfig)
222 return afsconf_GetCellInfo(*pconfigdir, cell, NULL, *pcellconfig);
225 void CloseConf(struct afsconf_dir **pconfigdir)
227 (void) afsconf_Close(*pconfigdir);
230 #define ALLOW_REGISTER 1
231 void ViceIDToUsername(char *username, char *realm_of_user, char *realm_of_cell,
232 char * cell_to_use, CREDENTIALS *c,
234 struct ktc_principal *aclient, struct ktc_principal *aserver, struct ktc_token *atoken)
236 static char lastcell[MAXCELLCHARS+1] = { 0 };
237 static char confname[512] = { 0 };
238 char username_copy[BUFSIZ];
239 afs_int32 viceId; /* AFS uid of user */
241 if (confname[0] == '\0') {
242 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
243 confname[sizeof(confname) - 2] = '\0';
247 printf("About to resolve name %s to id\n", username);
249 strcpy(lastcell, aserver->cell);
251 if (!pr_Initialize (0, confname, aserver->cell)) {
252 char sname[PR_MAXNAMELEN], *at;
254 strncpy(sname, username, PR_MAXNAMELEN);
255 sname[PR_MAXNAMELEN-1] = '\0';
257 at = strchr(sname, '@');
258 if (at && !stricmp(at+1, realm_of_cell))
260 *status = pr_SNameToId (sname, &viceId);
266 printf("Error %d\n", *status);
268 printf("Id %d\n", viceId);
272 * This code is taken from cklog -- it lets people
273 * automatically register with the ptserver in foreign cells
276 #ifdef ALLOW_REGISTER
278 if (viceId != ANONYMOUSID) {
279 #else /* ALLOW_REGISTER */
280 if ((*status == 0) && (viceId != ANONYMOUSID))
281 #endif /* ALLOW_REGISTER */
283 #ifdef AFS_ID_TO_NAME
284 strncpy(username_copy, username, BUFSIZ);
285 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
286 #endif /* AFS_ID_TO_NAME */
288 #ifdef ALLOW_REGISTER
289 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
292 printf("doing first-time registration of %s "
293 "at %s\n", username, cell_to_use);
295 strncpy(aclient->name, username, MAXKTCNAMELEN - 1);
296 aclient->name[MAXKTCNAMELEN - 1] = '\0';
297 strcpy(aclient->instance, "");
298 strncpy(aclient->cell, cell_to_use, MAXKTCREALMLEN - 1);
299 aclient->cell[MAXKTCREALMLEN - 1] = '\0';
301 for ( i=0; aclient->cell[i]; i++ ) {
302 if ( islower(aclient->cell[i]) )
303 aclient->cell[i] = toupper(aclient->cell[i]);
306 if ((*status = ktc_SetToken(aserver, atoken, aclient, 0))) {
307 printf("%s: unable to set tokens for cell %s "
308 "(status: %d).\n", progname, cell_to_use, *status);
309 *status = AKLOG_TOKEN;
314 * In case you're wondering, we don't need to change the
315 * filename here because we're still connecting to the
316 * same cell -- we're just using a different authentication
320 if ((*status = pr_Initialize(1L, confname, aserver->cell))) {
321 printf("Error %d\n", *status);
325 /* copy the name because pr_CreateUser lowercases the realm */
326 strncpy(username_copy, username, BUFSIZ);
328 *status = pr_CreateUser(username, &viceId);
330 /* and restore the name to the original state */
331 strncpy(username, username_copy, BUFSIZ);
334 printf("%s: unable to create remote PTS "
335 "user %s in cell %s (status: %d).\n", progname,
336 username, cell_to_use, *status);
338 printf("created cross-cell entry for %s (Id %d) at %s\n",
339 username, viceId, cell_to_use);
340 #ifdef AFS_ID_TO_NAME
341 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
342 #endif /* AFS_ID_TO_NAME */
346 #endif /* ALLOW_REGISTER */
349 char *LastComponent(char *str)
351 char *ret = strrchr(str, DIR);
355 ret = strrchr(str, BDIR);
360 int FirstComponent(char *str)
369 void CopyPathColon(char *origpath, char *path, char *pathtocheck)
372 if (origpath[1] == DRIVECOLON)
374 strncpy(pathtocheck, origpath, 2);
375 strcpy(path, origpath+2);
379 strcpy(path, origpath);
382 int BeginsWithDir(char *str, int colon)
384 return (str[0] == DIR) ||
386 ((str[0] == BDIR) || (colon && str[1] == DRIVECOLON));
393 /* This is a pretty gross hack. Linking against the Transarc
394 * libraries pulls in some rxkad functions which use des. (I don't
395 * think they ever get called.) With Transarc-supplied libraries this
396 * creates a reliance on the symbol des_pcbc_init() which is only in
397 * Transarc's DES libraries (it's an exportability symbol-hiding
398 * thing), which we don't want to use because they don't work with
399 * MIT's krb4 routines. So export a des_pcbc_init() symbol here so we
400 * don't have to link against Transarc's des library.
405 return 0; /* avoid warning */
409 static int get_cred(char *name, char *inst, char *realm, CREDENTIALS *c)
413 status = krb_get_cred(name, inst, realm, c);
414 if (status != KSUCCESS)
416 #ifdef DONT_HAVE_GET_AD_TKT
418 status = krb_mk_req(&ticket, name, inst, realm, 0);
420 status = get_ad_tkt(name, inst, realm, 255);
422 if (status == KSUCCESS)
423 status = krb_get_cred(name, inst, realm, c);
430 static int get_v5cred(krb5_context context,
431 char *name, char *inst, char *realm, CREDENTIALS *c,
436 static krb5_principal client_principal = 0;
438 if (client_principal) {
439 krb5_free_principal(context, client_principal);
440 client_principal = 0;
443 memset(&increds, 0, sizeof(increds));
445 if ((r = krb5_build_principal(context, &increds.server,
446 (int)strlen(realm), realm,
448 (inst && strlen(inst)) ? inst : 0,
453 if (!_krb425_ccache) {
454 if ((r = krb5_cc_default(context, &_krb425_ccache)))
457 if (!client_principal) {
458 if ((r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal))) {
459 krb5_cc_close(context, _krb425_ccache);
464 increds.client = client_principal;
465 increds.times.endtime = 0;
466 /* Ask for DES since that is what V4 understands */
467 increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC;
469 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
473 /* This requires krb524d to be running with the KDC */
475 r = krb5_524_convert_creds(context, *creds, c);
481 /* There is no header for this function. It is supposed to be private */
482 int krb_get_admhst(char *h,char *r, int n);
484 static char *afs_realm_of_cell(struct afsconf_cell *cellconfig)
486 char krbhst[MAX_HSTNM];
487 static char krbrlm[REALM_SZ+1];
492 strcpy(krbrlm, (char *) krb_realmofhost(cellconfig->hostName[0]));
494 if (krb_get_admhst(krbhst, krbrlm, 1) != KSUCCESS)
497 char *t = cellconfig->name;
512 /* As of MIT Kerberos 1.6, krb5_get_host_realm() will return the NUL-string
513 * if there is no domain_realm mapping for the hostname's domain. This is
514 * used as a trigger indicating that referrals should be used within the
515 * krb5_get_credentials() call. However, if the KDC does not support referrals
516 * that will result in a KRB5_ERR_HOST_REALM_UNKNOWN error and we will have
517 * to manually fallback to mapping the domain of the host as a realm name.
518 * Hence, the new fallback parameter.
520 static char *afs_realm_of_cell5(krb5_context context, struct afsconf_cell *cellconfig, int fallback)
523 static char krbrlm[REALM_SZ+1];
524 krb5_error_code status;
531 p = strchr(cellconfig->hostName[0], '.');
535 strcpy(krbrlm, cellconfig->name);
538 status = krb5_get_host_realm( context, cellconfig->hostName[0], &krbrlms );
539 if (status == 0 && krbrlms && krbrlms[0]) {
540 strcpy(krbrlm, krbrlms[0]);
542 strcpy(krbrlm, cellconfig->name);
547 krb5_free_host_realm( context, krbrlms );
552 static char *copy_cellinfo(cellinfo_t *cellinfo)
554 cellinfo_t *new_cellinfo;
556 if (new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t)))
557 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
559 return ((char *)new_cellinfo);
563 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig,
566 int status = AKLOG_SUCCESS;
567 struct afsconf_dir *configdir = 0;
569 memset(local_cell, 0, sizeof(local_cell));
570 memset(cellconfig, 0, sizeof(*cellconfig));
572 if (GetLocalCell(&configdir, local_cell))
574 fprintf(stderr, "%s: can't determine local cell.\n", progname);
578 if ((cell == NULL) || (cell[0] == 0))
581 if (GetCellInfo(&configdir, cell, &cellconfig))
583 fprintf(stderr, "%s: Can't get information about cell %s.\n",
588 if (cellconfig->linkedCell)
589 cellconfig->linkedCell = strdup(cellconfig->linkedCell);
591 CloseConf(&configdir);
596 static int get_v5_user_realm(krb5_context context,char *realm)
598 static krb5_principal client_principal = 0;
599 krb5_error_code code;
602 if (!_krb425_ccache) {
603 code = krb5_cc_default(context, &_krb425_ccache);
607 if (!client_principal) {
608 code = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
612 i = krb5_princ_realm(context, client_principal)->length;
613 if (i < REALM_SZ-1) i = REALM_SZ-1;
614 strncpy(realm,krb5_princ_realm(context, client_principal)->data,i);
620 copy_realm_of_ticket(krb5_context context, char * dest, size_t destlen, krb5_creds *v5cred) {
621 krb5_error_code code;
625 code = krb5_decode_ticket(&v5cred->ticket, &ticket);
627 len = krb5_princ_realm(context, ticket->server)->length;
628 if (len > destlen - 1)
631 strncpy(dest, krb5_princ_realm(context, ticket->server)->data, len);
634 krb5_free_ticket(context, ticket);
639 * Log to a cell. If the cell has already been logged to, return without
640 * doing anything. Otherwise, log to it and mark that it has been logged
642 static int auth_to_cell(krb5_context context, char *cell, char *realm)
644 int status = AKLOG_SUCCESS;
645 char username[BUFSIZ]; /* To hold client username structure */
647 char name[ANAME_SZ]; /* Name of afs key */
648 char instance[INST_SZ]; /* Instance of afs key */
649 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
650 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
651 char local_cell[MAXCELLCHARS+1];
652 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
654 krb5_creds *v5cred = NULL;
658 struct ktc_principal aserver;
659 struct ktc_principal aclient;
660 struct ktc_token atoken, btoken;
661 struct afsconf_cell ak_cellconfig; /* General information about the cell */
663 int getLinkedCell = 0;
665 /* try to avoid an expensive call to get_cellconfig */
666 if (cell && ll_string_check(&authedcells, cell))
669 printf("Already authenticated to %s (or tried to)\n", cell);
670 return(AKLOG_SUCCESS);
673 memset(name, 0, sizeof(name));
674 memset(instance, 0, sizeof(instance));
675 memset(realm_of_user, 0, sizeof(realm_of_user));
676 memset(realm_of_cell, 0, sizeof(realm_of_cell));
677 memset(&ak_cellconfig, 0, sizeof(ak_cellconfig));
679 /* NULL or empty cell returns information on local cell */
680 if (status = get_cellconfig(cell, &ak_cellconfig, local_cell))
685 strncpy(cell_to_use, ak_cellconfig.linkedCell, MAXCELLCHARS);
687 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
688 cell_to_use[MAXCELLCHARS] = 0;
690 if (ll_string_check(&authedcells, cell_to_use))
693 printf("Already authenticated to %s (or tried to)\n", cell_to_use);
694 status = AKLOG_SUCCESS;
699 * Record that we have attempted to log to this cell. We do this
700 * before we try rather than after so that we will not try
701 * and fail repeatedly for one cell.
703 (void)ll_add_string(&authedcells, cell_to_use);
706 printf("Authenticating to cell %s.\n", cell_to_use);
708 /* We use the afs.<cellname> convention here... */
709 strcpy(name, AFSKEY);
710 strncpy(instance, cell_to_use, sizeof(instance));
711 instance[sizeof(instance)-1] = '\0';
714 * Extract the session key from the ticket file and hand-frob an
715 * afs style authenticator.
721 int realm_fallback = 0;
723 if ((status = get_v5_user_realm(context, realm_of_user)) != KSUCCESS) {
724 fprintf(stderr, "%s: Couldn't determine realm of user: %d\n",
726 status = AKLOG_KERBEROS;
730 if ( strchr(name,'.') != NULL ) {
731 fprintf(stderr, "%s: Can't support principal names including a dot.\n",
738 if (realm && realm[0]) {
740 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm);
741 status = get_v5cred(context, name, instance, realm,
748 strcpy(realm_of_cell, realm);
750 strcpy(realm_of_cell,
751 afs_realm_of_cell5(context, &ak_cellconfig, realm_fallback));
753 if (retry == 1 && realm_fallback == 0) {
754 /* Only try the realm_of_user once */
757 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_user);
758 status = get_v5cred(context, name, instance, realm_of_user,
766 /* we have determined that the client realm
767 * is a valid cell realm
769 strcpy(realm_of_cell, realm_of_user);
773 if (status != 0 && (!retry || retry && strcmp(realm_of_user,realm_of_cell))) {
775 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_cell);
776 status = get_v5cred(context, name, instance, realm_of_cell,
783 if (!status && !strlen(realm_of_cell))
784 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
788 if (!realm_fallback && status == KRB5_ERR_HOST_REALM_UNKNOWN) {
791 } else if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
792 if (!realm_fallback && !realm_of_cell[0]) {
797 printf("Getting v5 tickets: %s@%s\n", name, realm_of_cell);
798 status = get_v5cred(context, name, "", realm_of_cell,
805 if (!status && !strlen(realm_of_cell))
806 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
809 if ( status == KRB5KRB_AP_ERR_MSG_TYPE && retry ) {
818 if (realm && realm[0])
819 strcpy(realm_of_cell, realm);
821 strcpy(realm_of_cell, afs_realm_of_cell(&ak_cellconfig));
824 * Try to obtain AFS tickets. Because there are two valid service
825 * names, we will try both, but trying the more specific first.
831 printf("Getting tickets: %s.%s@%s\n", name, instance, realm_of_cell);
832 status = get_cred(name, instance, realm_of_cell, &c);
833 if (status == KDC_PR_UNKNOWN)
836 printf("Getting tickets: %s@%s\n", name, realm_of_cell);
837 status = get_cred(name, "", realm_of_cell, &c);
845 /* TODO: get k5 error text */
846 if (status != KSUCCESS)
849 printf("Kerberos error code returned by get_cred: %d\n", status);
850 fprintf(stderr, "%s: Couldn't get %s AFS tickets: %s\n",
851 progname, cell_to_use,
853 (usev5)?"":krb_err_text(status)
858 status = AKLOG_KERBEROS;
862 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
863 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
864 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
866 if (usev5 && !use524) {
867 /* This code inserts the entire K5 ticket into the token
868 * No need to perform a krb524 translation which is
869 * commented out in the code below
874 len = min(v5cred->client->data[0].length,MAXKTCNAMELEN - 1);
875 strncpy(username, v5cred->client->data[0].data, len);
876 username[len] = '\0';
878 if ( v5cred->client->length > 1 ) {
879 strcat(username, ".");
880 p = username + strlen(username);
881 len = min(v5cred->client->data[1].length,MAXKTCNAMELEN - strlen(username) - 1);
882 strncpy(p, v5cred->client->data[1].data, len);
886 memset(&atoken, '\0', sizeof(atoken));
887 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
888 atoken.startTime = v5cred->times.starttime;
889 atoken.endTime = v5cred->times.endtime;
890 memcpy(&atoken.sessionKey, v5cred->keyblock.contents, v5cred->keyblock.length);
891 atoken.ticketLen = v5cred->ticket.length;
892 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
895 strcpy (username, c.pname);
898 strcat(username, ".");
899 strcat(username, c.pinst);
902 atoken.kvno = c.kvno;
903 atoken.startTime = c.issue_date;
904 /* ticket lifetime is in five-minutes blocks. */
905 atoken.endTime = c.issue_date + ((unsigned char)c.lifetime * 5 * 60);
907 memcpy(&atoken.sessionKey, c.session, 8);
908 atoken.ticketLen = c.ticket_st.length;
909 memcpy(atoken.ticket, c.ticket_st.dat, atoken.ticketLen);
917 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
918 atoken.kvno == btoken.kvno &&
919 atoken.ticketLen == btoken.ticketLen &&
920 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
921 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen))
924 printf("Identical tokens already exist; skipping.\n");
925 status = AKLOG_SUCCESS;
932 printf("Not resolving name %s to id (-noprdb set)\n", username);
938 if ((status = krb_get_tf_realm(TKT_FILE, realm_of_user)) != KSUCCESS)
940 fprintf(stderr, "%s: Couldn't determine realm of user: %s)",
941 progname, krb_err_text(status));
942 status = AKLOG_KERBEROS;
951 /* For Network Identity Manager append the realm to the name */
952 strcat(username, "@");
953 strcat(username, realm_of_user);
955 ViceIDToUsername(username, realm_of_user, realm_of_cell, cell_to_use,
961 &status, &aclient, &aserver, &atoken);
965 printf("Set username to %s\n", username);
967 /* Reset the "aclient" structure before we call ktc_SetToken.
968 * This structure was first set by the ktc_GetToken call when
969 * we were comparing whether identical tokens already existed.
971 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
972 strcpy(aclient.instance, "");
974 if (usev5 && !use524) {
975 int len = min(v5cred->client->realm.length,MAXKTCNAMELEN - 1);
976 strncpy(aclient.cell, v5cred->client->realm.data, len);
977 aclient.cell[len] = '\0';
981 strncpy(aclient.cell, c.realm, MAXKTCREALMLEN - 1);
984 for ( i=0; aclient.cell[i]; i++ ) {
985 if ( islower(aclient.cell[i]) )
986 aclient.cell[i] = toupper(aclient.cell[i]);
990 printf("Getting tokens.\n");
991 if (status = ktc_SetToken(&aserver, &atoken, &aclient, 0))
994 "%s: unable to obtain tokens for cell %s (status: %d).\n",
995 progname, cell_to_use, status);
996 status = AKLOG_TOKEN;
1000 if (ak_cellconfig.linkedCell && !getLinkedCell) {
1008 * intentionally leak the linkedCell field because it was allocated
1009 * using a different C RTL version.
1011 if (ak_cellconfig.linkedCell)
1012 free(ak_cellconfig.linkedCell);
1017 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
1019 char our_file[MAXPATHLEN + 1];
1021 char *last_component;
1022 struct ViceIoctl vio;
1023 char cellname[BUFSIZ];
1025 memset(our_file, 0, sizeof(our_file));
1026 strcpy(our_file, file);
1028 if (last_component = LastComponent(our_file))
1030 *last_component++ = 0;
1031 parent_dir = our_file;
1035 last_component = our_file;
1039 memset(cellname, 0, sizeof(cellname));
1041 vio.in = last_component;
1042 vio.in_size = strlen(last_component)+1;
1043 vio.out_size = size;
1044 vio.out = mountpoint;
1046 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0))
1048 if (strchr(mountpoint, VOLMARKER) == NULL)
1051 vio.in_size = strlen(file) + 1;
1052 vio.out_size = sizeof(cellname);
1055 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1))
1057 strcat(cellname, VOLMARKERSTRING);
1058 strcat(cellname, mountpoint + 1);
1059 memset(mountpoint + 1, 0, size - 1);
1060 strcpy(mountpoint + 1, cellname);
1071 * This routine each time it is called returns the next directory
1072 * down a pathname. It resolves all symbolic links. The first time
1073 * it is called, it should be called with the name of the path
1074 * to be descended. After that, it should be called with the arguemnt
1077 static char *next_path(char *origpath)
1079 static char path[MAXPATHLEN + 1];
1080 static char pathtocheck[MAXPATHLEN + 1];
1082 int link = FALSE; /* Is this a symbolic link? */
1083 char linkbuf[MAXPATHLEN + 1];
1084 char tmpbuf[MAXPATHLEN + 1];
1086 static char *last_comp; /* last component of directory name */
1087 static char *elast_comp; /* End of last component */
1091 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
1093 /* If we are given something for origpath, we are initializing only. */
1096 memset(path, 0, sizeof(path));
1097 memset(pathtocheck, 0, sizeof(pathtocheck));
1098 CopyPathColon(origpath, path, pathtocheck);
1104 /* We were not given origpath; find then next path to check */
1106 /* If we've gotten all the way through already, return NULL */
1107 if (last_comp == NULL)
1112 while (BeginsWithDir(last_comp, FALSE))
1113 strncat(pathtocheck, last_comp++, 1);
1114 len = (elast_comp = LastComponent(last_comp))
1115 ? elast_comp - last_comp : strlen(last_comp);
1116 strncat(pathtocheck, last_comp, len);
1117 memset(linkbuf, 0, sizeof(linkbuf));
1118 if (link = (readlink(pathtocheck, linkbuf, sizeof(linkbuf)) > 0))
1120 if (++symlinkcount > MAXSYMLINKS)
1122 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
1123 akexit(AKLOG_BADPATH);
1125 memset(tmpbuf, 0, sizeof(tmpbuf));
1127 strcpy(tmpbuf, elast_comp);
1128 if (BeginsWithDir(linkbuf, FALSE))
1131 * If this is a symbolic link to an absolute path,
1132 * replace what we have by the absolute path.
1134 memset(path, 0, strlen(path));
1135 memcpy(path, linkbuf, sizeof(linkbuf));
1136 strcat(path, tmpbuf);
1139 memset(pathtocheck, 0, sizeof(pathtocheck));
1144 * If this is a symbolic link to a relative path,
1145 * replace only the last component with the link name.
1147 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
1148 strcat(path, tmpbuf);
1150 if (t = LastComponent(pathtocheck))
1153 memset(t, 0, strlen(t));
1156 memset(pathtocheck, 0, sizeof(pathtocheck));
1160 last_comp = elast_comp;
1164 return(pathtocheck);
1168 * This routine descends through a path to a directory, logging to
1169 * every cell it encounters along the way.
1171 static int auth_to_path(krb5_context context, char *path)
1173 int status = AKLOG_SUCCESS;
1174 int auth_to_cell_status = AKLOG_SUCCESS;
1177 char pathtocheck[MAXPATHLEN + 1];
1178 char mountpoint[MAXPATHLEN + 1];
1184 if (BeginsWithDir(path, TRUE))
1185 strcpy(pathtocheck, path);
1188 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL)
1190 fprintf(stderr, "Unable to find current working directory:\n");
1191 fprintf(stderr, "%s\n", pathtocheck);
1192 fprintf(stderr, "Try an absolute pathname.\n");
1193 akexit(AKLOG_BADPATH);
1197 /* in WIN32, if getcwd returns a root dir (eg: c:\), the returned string
1198 * will already have a trailing slash ('\'). Otherwise, the string will
1199 * end in the last directory name */
1201 if(pathtocheck[strlen(pathtocheck) - 1] != BDIR)
1203 strcat(pathtocheck, DIRSTRING);
1204 strcat(pathtocheck, path);
1207 next_path(pathtocheck);
1209 /* Go on to the next level down the path */
1210 while (nextpath = next_path(NULL))
1212 strcpy(pathtocheck, nextpath);
1214 printf("Checking directory [%s]\n", pathtocheck);
1216 * If this is an afs mountpoint, determine what cell from
1217 * the mountpoint name which is of the form
1218 * #cellname:volumename or %cellname:volumename.
1220 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint)))
1223 printf("Found mount point [%s]\n", mountpoint);
1224 /* skip over the '#' or '%' */
1225 cell = mountpoint + 1;
1226 if (endofcell = strchr(mountpoint, VOLMARKER))
1229 if (auth_to_cell_status = auth_to_cell(context, cell, NULL))
1231 if (status == AKLOG_SUCCESS)
1232 status = auth_to_cell_status;
1233 else if (status != auth_to_cell_status)
1234 status = AKLOG_SOMETHINGSWRONG;
1242 if (lstat(pathtocheck, &st) < 0)
1245 * If we've logged and still can't stat, there's
1248 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1249 pathtocheck, strerror(errno));
1250 return(AKLOG_BADPATH);
1252 else if (!S_ISDIR(st.st_mode))
1254 /* Allow only directories */
1255 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1257 return(AKLOG_BADPATH);
1265 /* Print usage message and exit */
1266 static void usage(void)
1268 fprintf(stderr, "\nUsage: %s %s%s%s%s\n", progname,
1269 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1270 "[[-p | -path] pathname]\n",
1271 " [-noprdb] [-force]\n",
1278 fprintf(stderr, " -d gives debugging information.\n");
1279 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1280 fprintf(stderr, " pathname is the name of a directory to which ");
1281 fprintf(stderr, "you wish to authenticate.\n");
1282 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1284 fprintf(stderr, " -5 or -4 selects whether to use Kerberos v5 or Kerberos v4.\n"
1285 " (default is Kerberos v5)\n");
1286 fprintf(stderr, " -m means use krb524d to convert Kerberos v5 tickets.\n");
1288 fprintf(stderr, " -5 use Kerberos v5.\n"
1289 " (only Kerberos v5 is available)\n");
1291 fprintf(stderr, " No commandline arguments means ");
1292 fprintf(stderr, "authenticate to the local cell.\n");
1293 fprintf(stderr, "\n");
1294 akexit(AKLOG_USAGE);
1298 validate_krb5_availability(void)
1301 #define KRB5LIB "krb5_32.dll"
1303 #define KRB5LIB "krb5_64.dll"
1305 HINSTANCE h = LoadLibrary(KRB5LIB);
1309 fprintf(stderr, "Kerberos for Windows library %s is not available.\n", KRB5LIB);
1310 akexit(AKLOG_KFW_NOT_INSTALLED);
1315 validate_krb4_availability(void)
1318 HINSTANCE h = LoadLibrary("krbv4w32.dll");
1322 fprintf(stderr, "Kerberos for Windows library krbv4w32.dll is not available.\n");
1323 akexit(AKLOG_KFW_NOT_INSTALLED);
1326 fprintf(stderr, "Kerberos v4 is not available in this build of aklog.\n");
1327 akexit(AKLOG_USAGE);
1331 int main(int argc, char *argv[])
1333 int status = AKLOG_SUCCESS;
1335 int somethingswrong = FALSE;
1337 cellinfo_t cellinfo;
1339 extern char *progname; /* Name of this program */
1341 extern int dflag; /* Debug mode */
1343 int cmode = FALSE; /* Cellname mode */
1344 int pmode = FALSE; /* Path name mode */
1346 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1347 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1348 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1350 linked_list cells; /* List of cells to log to */
1351 linked_list paths; /* List of paths to log to */
1354 memset(&cellinfo, 0, sizeof(cellinfo));
1356 memset(realm, 0, sizeof(realm));
1357 memset(cell, 0, sizeof(cell));
1358 memset(path, 0, sizeof(path));
1363 /* Store the program name here for error messages */
1364 if (progname = LastComponent(argv[0]))
1369 /* Initialize list of cells to which we have authenticated */
1370 (void)ll_init(&authedcells);
1372 /* Parse commandline arguments and make list of what to do. */
1373 for (i = 1; i < argc; i++)
1375 if (strcmp(argv[i], "-d") == 0)
1377 else if (strcmp(argv[i], "-5") == 0)
1380 else if (strcmp(argv[i], "-m") == 0)
1382 else if (strcmp(argv[i], "-4") == 0)
1385 else if (strcmp(argv[i], "-noprdb") == 0)
1387 else if (strcmp(argv[i], "-force") == 0)
1389 else if (((strcmp(argv[i], "-cell") == 0) ||
1390 (strcmp(argv[i], "-c") == 0)) && !pmode)
1395 strcpy(cell, argv[i]);
1400 else if (((strcmp(argv[i], "-path") == 0) ||
1401 (strcmp(argv[i], "-p") == 0)) && !cmode)
1406 strcpy(path, argv[i]);
1411 else if (argv[i][0] == '-')
1413 else if (!pmode && !cmode)
1415 if (FirstComponent(argv[i]) || (strcmp(argv[i], ".") == 0) ||
1416 (strcmp(argv[i], "..") == 0))
1419 strcpy(path, argv[i]);
1424 strcpy(cell, argv[i]);
1432 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0))
1436 strcpy(realm, argv[i]);
1440 /* Add this cell to list of cells */
1441 strcpy(cellinfo.cell, cell);
1442 strcpy(cellinfo.realm, realm);
1443 if (cur_node = ll_add_node(&cells, ll_tail))
1446 if (new_cellinfo = copy_cellinfo(&cellinfo))
1447 ll_add_data(cur_node, new_cellinfo);
1450 fprintf(stderr, "%s: failure copying cellinfo.\n", progname);
1456 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1460 memset(&cellinfo, 0, sizeof(cellinfo));
1462 memset(cell, 0, sizeof(cell));
1463 memset(realm, 0, sizeof(realm));
1467 /* Add this path to list of paths */
1468 if (cur_node = ll_add_node(&paths, ll_tail))
1471 if (new_path = strdup(path))
1472 ll_add_data(cur_node, new_path);
1475 fprintf(stderr, "%s: failure copying path name.\n",
1482 fprintf(stderr, "%s: failure adding path to paths list.\n",
1487 memset(path, 0, sizeof(path));
1492 validate_krb5_availability();
1493 if (krb5_init_context(&context))
1494 return(AKLOG_KERBEROS);
1496 validate_krb4_availability();
1499 /* If nothing was given, log to the local cell. */
1500 if ((cells.nelements + paths.nelements) == 0)
1501 status = auth_to_cell(context, NULL, NULL);
1504 /* Log to all cells in the cells list first */
1505 for (cur_node = cells.first; cur_node; cur_node = cur_node->next)
1507 memcpy(&cellinfo, cur_node->data, sizeof(cellinfo));
1508 if (status = auth_to_cell(context,
1509 cellinfo.cell, cellinfo.realm))
1513 /* Then, log to all paths in the paths list */
1514 for (cur_node = paths.first; cur_node; cur_node = cur_node->next)
1516 if (status = auth_to_path(context,
1522 * If only one thing was logged to, we'll return the status
1523 * of the single call. Otherwise, we'll return a generic
1524 * something failed status.
1526 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1527 status = AKLOG_SOMETHINGSWRONG;