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.
48 #include <afsconfig.h>
49 #include <afs/param.h>
56 #include <sys/types.h>
60 #include <afs/com_err.h>
69 #define CREDENTIALS void
72 #include <afs/ptserver.h>
73 #include <afs/ptuser.h>
74 #include <afs/pterror.h>
79 #include <afs\cm_config.h>
81 #include <afs\cellconfig.h>
82 #include <afs\pioctl_nt.h>
83 #include <afs\smb_iocons.h>
85 #define DONT_HAVE_GET_AD_TKT
86 #define MAXSYMLINKS 255
89 /* Win32 uses get_krb_err_txt_entry(status) instead of krb_err_txt[status],
90 * so we use a bit of indirection like the GNU CVS sources.
92 #define krb_err_text(status) get_krb_err_txt_entry(status)
95 #define DRIVECOLON ':' /* Drive letter separator */
96 #define BDIR '\\' /* Other character that divides directories */
99 readlink(char *path, char *buf, int buffers)
104 char * getcwd(char*, size_t);
107 get_cellconfig_callback(void *cellconfig, struct sockaddr_in *addrp, char *namep)
109 struct afsconf_cell *cc = (struct afsconf_cell *) cellconfig;
111 cc->hostAddr[cc->numServers] = *addrp;
112 strcpy(cc->hostName[cc->numServers], namep);
118 #include <sys/param.h>
120 #include <arpa/inet.h>
121 #include <sys/socket.h>
124 #include <afs/param.h>
125 #include <afs/auth.h>
126 #include <afs/cellconfig.h>
127 #include <afs/vice.h>
128 #include <afs/venus.h>
129 #include <afs/ptserver.h>
131 #define krb_err_text(status) krb_err_txt[status]
133 /* Cheesy test for determining AFS 3.5. */
134 #ifndef AFSCONF_CLIENTNAME
139 #include <afs/dirpath.h>
141 #define AFSDIR_CLIENT_ETC_DIRPATH AFSCONF_CLIENTNAME
146 #include "linked_list.h"
151 #define AKLOG_SUCCESS 0
152 #define AKLOG_USAGE 1
153 #define AKLOG_SOMETHINGSWRONG 2
155 #define AKLOG_KERBEROS 4
156 #define AKLOG_TOKEN 5
157 #define AKLOG_BADPATH 6
159 #define AKLOG_KFW_NOT_INSTALLED 8
174 #define MAXSYMLINKS 15
177 #define DIR '/' /* Character that divides directories */
178 #define DIRSTRING "/" /* String form of above */
179 #define VOLMARKER ':' /* Character separating cellname from mntpt */
180 #define VOLMARKERSTRING ":" /* String form of above */
184 char realm[REALM_SZ];
188 static char *progname = NULL; /* Name of this program */
189 static int dflag = FALSE; /* Give debugging information */
190 static int noprdb = FALSE; /* Skip resolving name to id? */
191 static int force = FALSE; /* Bash identical tokens? */
192 static linked_list authedcells; /* List of cells already logged to */
194 static int usev5 = TRUE; /* use kerberos 5? */
195 static int use524 = FALSE; /* use krb524? */
196 static krb5_context context = 0;
197 static krb5_ccache _krb425_ccache = 0;
199 static char * (KRB5_CALLCONV *pkrb5_get_error_message)(krb5_context context, krb5_error_code code)=NULL;
200 static void (KRB5_CALLCONV *pkrb5_free_error_message)(krb5_context context, char *s) = NULL;
202 void akexit(int exit_code)
205 krb5_cc_close(context, _krb425_ccache);
207 krb5_free_context(context);
211 /* A com_error bodge. The idea here is that this routine lets us lookup
212 * things in the system com_err, if the AFS one just tells us the error
217 redirect_errors(const char *who, afs_int32 code, const char *fmt, va_list ap)
225 char *str = (char *)afs_error_message(code);
226 if (strncmp(str, "unknown", strlen(str)) == 0) {
227 if (pkrb5_get_error_message) {
228 str = pkrb5_get_error_message(NULL, code);
231 str = (char *)error_message(code);
236 pkrb5_free_error_message(NULL, str);
239 vfprintf(stderr, fmt, ap);
245 long GetLocalCell(struct afsconf_dir **pconfigdir, char *local_cell)
247 if (!(*pconfigdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH)))
249 fprintf(stderr, "%s: can't get afs configuration (afsconf_Open(%s))\n",
250 progname, AFSDIR_CLIENT_ETC_DIRPATH);
254 return afsconf_GetLocalCell(*pconfigdir, local_cell, MAXCELLCHARS);
257 long GetCellInfo(struct afsconf_dir **pconfigdir, char* cell,
258 struct afsconf_cell **pcellconfig)
260 return afsconf_GetCellInfo(*pconfigdir, cell, NULL, *pcellconfig);
263 void CloseConf(struct afsconf_dir **pconfigdir)
265 (void) afsconf_Close(*pconfigdir);
268 #define ALLOW_REGISTER 1
269 void ViceIDToUsername(char *username, char *realm_of_user, char *realm_of_cell,
270 char * cell_to_use, CREDENTIALS *c,
272 struct ktc_principal *aclient, struct ktc_principal *aserver, struct ktc_token *atoken)
274 static char lastcell[MAXCELLCHARS+1] = { 0 };
275 static char confname[512] = { 0 };
276 char username_copy[BUFSIZ];
277 afs_int32 viceId; /* AFS uid of user */
279 if (confname[0] == '\0') {
280 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
281 confname[sizeof(confname) - 2] = '\0';
285 printf("About to resolve name %s to id\n", username);
287 strcpy(lastcell, aserver->cell);
289 if (!pr_Initialize (0, confname, aserver->cell)) {
290 char sname[PR_MAXNAMELEN], *at;
292 strncpy(sname, username, PR_MAXNAMELEN);
293 sname[PR_MAXNAMELEN-1] = '\0';
295 at = strchr(sname, '@');
296 if (at && !stricmp(at+1, realm_of_cell))
298 *status = pr_SNameToId (sname, &viceId);
304 printf("pr_SNameToId Error %s\n", afs_error_message(*status));
306 printf("Id %d\n", viceId);
310 * This code is taken from cklog -- it lets people
311 * automatically register with the ptserver in foreign cells
314 #ifdef ALLOW_REGISTER
316 if (viceId != ANONYMOUSID) {
317 #else /* ALLOW_REGISTER */
318 if ((*status == 0) && (viceId != ANONYMOUSID))
319 #endif /* ALLOW_REGISTER */
321 #ifdef AFS_ID_TO_NAME
322 strncpy(username_copy, username, BUFSIZ);
323 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
324 #endif /* AFS_ID_TO_NAME */
326 #ifdef ALLOW_REGISTER
327 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
330 printf("doing first-time registration of %s "
331 "at %s\n", username, cell_to_use);
333 strncpy(aclient->name, username, MAXKTCNAMELEN - 1);
334 aclient->name[MAXKTCNAMELEN - 1] = '\0';
335 strcpy(aclient->instance, "");
336 strncpy(aclient->cell, cell_to_use, MAXKTCREALMLEN - 1);
337 aclient->cell[MAXKTCREALMLEN - 1] = '\0';
339 for ( i=0; aclient->cell[i]; i++ ) {
340 if ( islower(aclient->cell[i]) )
341 aclient->cell[i] = toupper(aclient->cell[i]);
344 if ((*status = ktc_SetToken(aserver, atoken, aclient, 0))) {
345 afs_com_err(progname, *status,
346 "while obtaining tokens for cell %s\n",
348 *status = AKLOG_TOKEN;
353 * In case you're wondering, we don't need to change the
354 * filename here because we're still connecting to the
355 * same cell -- we're just using a different authentication
359 if ((*status = pr_Initialize(1L, confname, aserver->cell))) {
360 printf("pr_Initialize Error %s\n", afs_error_message(*status));
364 /* copy the name because pr_CreateUser lowercases the realm */
365 strncpy(username_copy, username, BUFSIZ);
368 *status = pr_CreateUser(username_copy, &viceId);
371 printf("%s: unable to create remote PTS "
372 "user %s in cell %s (status: %s).\n", progname,
373 username_copy, cell_to_use, afs_error_message(*status));
375 printf("created cross-cell entry for %s (Id %d) at %s\n",
376 username_copy, viceId, cell_to_use);
377 #ifdef AFS_ID_TO_NAME
378 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
379 #endif /* AFS_ID_TO_NAME */
383 #endif /* ALLOW_REGISTER */
386 char *LastComponent(char *str)
388 char *ret = strrchr(str, DIR);
392 ret = strrchr(str, BDIR);
397 int FirstComponent(char *str)
406 void CopyPathColon(char *origpath, char *path, char *pathtocheck)
409 if (origpath[1] == DRIVECOLON)
411 strncpy(pathtocheck, origpath, 2);
412 strcpy(path, origpath+2);
416 strcpy(path, origpath);
419 int BeginsWithDir(char *str, int colon)
421 return (str[0] == DIR) ||
423 ((str[0] == BDIR) || (colon && str[1] == DRIVECOLON));
430 /* This is a pretty gross hack. Linking against the Transarc
431 * libraries pulls in some rxkad functions which use des. (I don't
432 * think they ever get called.) With Transarc-supplied libraries this
433 * creates a reliance on the symbol des_pcbc_init() which is only in
434 * Transarc's DES libraries (it's an exportability symbol-hiding
435 * thing), which we don't want to use because they don't work with
436 * MIT's krb4 routines. So export a des_pcbc_init() symbol here so we
437 * don't have to link against Transarc's des library.
442 return 0; /* avoid warning */
446 static int get_cred(char *name, char *inst, char *realm, CREDENTIALS *c)
450 status = krb_get_cred(name, inst, realm, c);
451 if (status != KSUCCESS)
453 #ifdef DONT_HAVE_GET_AD_TKT
455 status = krb_mk_req(&ticket, name, inst, realm, 0);
457 status = get_ad_tkt(name, inst, realm, 255);
459 if (status == KSUCCESS)
460 status = krb_get_cred(name, inst, realm, c);
467 static int get_v5cred(krb5_context context,
468 char *name, char *inst, char *realm, CREDENTIALS *c,
473 static krb5_principal client_principal = 0;
475 if (client_principal) {
476 krb5_free_principal(context, client_principal);
477 client_principal = 0;
480 memset(&increds, 0, sizeof(increds));
482 if ((r = krb5_build_principal(context, &increds.server,
483 (int)strlen(realm), realm,
485 (inst && strlen(inst)) ? inst : 0,
490 if (!_krb425_ccache) {
491 if ((r = krb5_cc_default(context, &_krb425_ccache)))
494 if (!client_principal) {
495 if ((r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal))) {
496 krb5_cc_close(context, _krb425_ccache);
501 increds.client = client_principal;
502 increds.times.endtime = 0;
503 /* Ask for DES since that is what V4 understands */
504 increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC;
506 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
510 /* This requires krb524d to be running with the KDC */
512 r = krb5_524_convert_creds(context, *creds, c);
518 /* There is no header for this function. It is supposed to be private */
519 int krb_get_admhst(char *h,char *r, int n);
521 static char *afs_realm_of_cell(struct afsconf_cell *cellconfig)
523 char krbhst[MAX_HSTNM];
524 static char krbrlm[REALM_SZ+1];
529 strcpy(krbrlm, (char *) krb_realmofhost(cellconfig->hostName[0]));
531 if (krb_get_admhst(krbhst, krbrlm, 1) != KSUCCESS)
534 char *t = cellconfig->name;
549 /* As of MIT Kerberos 1.6, krb5_get_host_realm() will return the NUL-string
550 * if there is no domain_realm mapping for the hostname's domain. This is
551 * used as a trigger indicating that referrals should be used within the
552 * krb5_get_credentials() call. However, if the KDC does not support referrals
553 * that will result in a KRB5_ERR_HOST_REALM_UNKNOWN error and we will have
554 * to manually fallback to mapping the domain of the host as a realm name.
555 * Hence, the new fallback parameter.
557 static char *afs_realm_of_cell5(krb5_context context, struct afsconf_cell *cellconfig, int fallback)
560 static char krbrlm[REALM_SZ+1];
561 krb5_error_code status;
568 p = strchr(cellconfig->hostName[0], '.');
572 strcpy(krbrlm, cellconfig->name);
575 status = krb5_get_host_realm( context, cellconfig->hostName[0], &krbrlms );
576 if (status == 0 && krbrlms && krbrlms[0]) {
577 strcpy(krbrlm, krbrlms[0]);
579 strcpy(krbrlm, cellconfig->name);
584 krb5_free_host_realm( context, krbrlms );
589 static char *copy_cellinfo(cellinfo_t *cellinfo)
591 cellinfo_t *new_cellinfo;
593 if (new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t)))
594 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
596 return ((char *)new_cellinfo);
600 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig,
603 int status = AKLOG_SUCCESS;
604 struct afsconf_dir *configdir = 0;
606 memset(local_cell, 0, sizeof(local_cell));
607 memset(cellconfig, 0, sizeof(*cellconfig));
609 if (GetLocalCell(&configdir, local_cell))
611 fprintf(stderr, "%s: can't determine local cell.\n", progname);
615 if ((cell == NULL) || (cell[0] == 0))
618 if (GetCellInfo(&configdir, cell, &cellconfig))
620 fprintf(stderr, "%s: Can't get information about cell %s.\n",
625 if (cellconfig->linkedCell)
626 cellconfig->linkedCell = strdup(cellconfig->linkedCell);
628 CloseConf(&configdir);
633 static int get_v5_user_realm(krb5_context context,char *realm)
635 static krb5_principal client_principal = 0;
636 krb5_error_code code;
639 if (!_krb425_ccache) {
640 code = krb5_cc_default(context, &_krb425_ccache);
644 if (!client_principal) {
645 code = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
649 i = krb5_princ_realm(context, client_principal)->length;
650 if (i < REALM_SZ-1) i = REALM_SZ-1;
651 strncpy(realm,krb5_princ_realm(context, client_principal)->data,i);
657 copy_realm_of_ticket(krb5_context context, char * dest, size_t destlen, krb5_creds *v5cred) {
658 krb5_error_code code;
662 code = krb5_decode_ticket(&v5cred->ticket, &ticket);
664 len = krb5_princ_realm(context, ticket->server)->length;
665 if (len > destlen - 1)
668 strncpy(dest, krb5_princ_realm(context, ticket->server)->data, len);
671 krb5_free_ticket(context, ticket);
676 * Log to a cell. If the cell has already been logged to, return without
677 * doing anything. Otherwise, log to it and mark that it has been logged
679 static int auth_to_cell(krb5_context context, char *cell, char *realm)
681 int status = AKLOG_SUCCESS;
682 char username[BUFSIZ]; /* To hold client username structure */
684 char name[ANAME_SZ]; /* Name of afs key */
685 char instance[INST_SZ]; /* Instance of afs key */
686 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
687 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
688 char local_cell[MAXCELLCHARS+1];
689 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
691 krb5_creds *v5cred = NULL;
695 struct ktc_principal aserver;
696 struct ktc_principal aclient;
697 struct ktc_token atoken, btoken;
698 struct afsconf_cell ak_cellconfig; /* General information about the cell */
700 int getLinkedCell = 0;
702 /* try to avoid an expensive call to get_cellconfig */
703 if (cell && ll_string_check(&authedcells, cell))
706 printf("Already authenticated to %s (or tried to)\n", cell);
707 return(AKLOG_SUCCESS);
710 memset(name, 0, sizeof(name));
711 memset(instance, 0, sizeof(instance));
712 memset(realm_of_user, 0, sizeof(realm_of_user));
713 memset(realm_of_cell, 0, sizeof(realm_of_cell));
714 memset(&ak_cellconfig, 0, sizeof(ak_cellconfig));
716 /* NULL or empty cell returns information on local cell */
717 if (status = get_cellconfig(cell, &ak_cellconfig, local_cell))
722 strncpy(cell_to_use, ak_cellconfig.linkedCell, MAXCELLCHARS);
724 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
725 cell_to_use[MAXCELLCHARS] = 0;
727 if (ll_string_check(&authedcells, cell_to_use))
730 printf("Already authenticated to %s (or tried to)\n", cell_to_use);
731 status = AKLOG_SUCCESS;
736 * Record that we have attempted to log to this cell. We do this
737 * before we try rather than after so that we will not try
738 * and fail repeatedly for one cell.
740 (void)ll_add_string(&authedcells, cell_to_use);
743 printf("Authenticating to cell %s.\n", cell_to_use);
745 /* We use the afs.<cellname> convention here... */
746 strcpy(name, AFSKEY);
747 strncpy(instance, cell_to_use, sizeof(instance));
748 instance[sizeof(instance)-1] = '\0';
751 * Extract the session key from the ticket file and hand-frob an
752 * afs style authenticator.
758 int realm_fallback = 0;
760 if ((status = get_v5_user_realm(context, realm_of_user)) != KSUCCESS) {
763 if (pkrb5_get_error_message)
764 msg = pkrb5_get_error_message(context, status);
766 msg = (char *)error_message(status);
767 fprintf(stderr, "%s: Couldn't determine realm of user: %s\n",
769 if (pkrb5_free_error_message)
770 pkrb5_free_error_message(context, msg);
771 status = AKLOG_KERBEROS;
775 if ( strchr(name,'.') != NULL ) {
776 fprintf(stderr, "%s: Can't support principal names including a dot.\n",
783 if (realm && realm[0]) {
785 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm);
786 status = get_v5cred(context, name, instance, realm,
793 strcpy(realm_of_cell, realm);
795 strcpy(realm_of_cell,
796 afs_realm_of_cell5(context, &ak_cellconfig, realm_fallback));
798 if (retry == 1 && realm_fallback == 0) {
799 /* Only try the realm_of_user once */
802 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_user);
803 status = get_v5cred(context, name, instance, realm_of_user,
811 /* we have determined that the client realm
812 * is a valid cell realm
814 strcpy(realm_of_cell, realm_of_user);
818 if (status != 0 && (!retry || retry && strcmp(realm_of_user,realm_of_cell))) {
820 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_cell);
821 status = get_v5cred(context, name, instance, realm_of_cell,
828 if (!status && !strlen(realm_of_cell))
829 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
833 if (!realm_fallback && status == KRB5_ERR_HOST_REALM_UNKNOWN) {
836 } else if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
837 if (!realm_fallback && !realm_of_cell[0]) {
842 printf("Getting v5 tickets: %s@%s\n", name, realm_of_cell);
843 status = get_v5cred(context, name, "", realm_of_cell,
850 if (!status && !strlen(realm_of_cell))
851 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
854 if ( status == KRB5KRB_AP_ERR_MSG_TYPE && retry ) {
863 if (realm && realm[0])
864 strcpy(realm_of_cell, realm);
866 strcpy(realm_of_cell, afs_realm_of_cell(&ak_cellconfig));
869 * Try to obtain AFS tickets. Because there are two valid service
870 * names, we will try both, but trying the more specific first.
876 printf("Getting tickets: %s.%s@%s\n", name, instance, realm_of_cell);
877 status = get_cred(name, instance, realm_of_cell, &c);
878 if (status == KDC_PR_UNKNOWN)
881 printf("Getting tickets: %s@%s\n", name, realm_of_cell);
882 status = get_cred(name, "", realm_of_cell, &c);
890 if (status != KSUCCESS)
894 printf("Kerberos error code returned by get_cred: %d\n", status);
897 if (pkrb5_get_error_message)
898 msg = pkrb5_get_error_message(context, status);
900 msg = (char *)error_message(status);
904 msg = krb_err_text(status);
906 fprintf(stderr, "%s: Couldn't get %s AFS tickets: %s\n",
907 progname, cell_to_use, msg?msg:"(unknown error)");
908 if (usev5 && pkrb5_free_error_message)
909 pkrb5_free_error_message(context, msg);
910 status = AKLOG_KERBEROS;
914 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
915 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
916 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
918 if (usev5 && !use524) {
919 /* This code inserts the entire K5 ticket into the token
920 * No need to perform a krb524 translation which is
921 * commented out in the code below
926 len = min(v5cred->client->data[0].length,MAXKTCNAMELEN - 1);
927 strncpy(username, v5cred->client->data[0].data, len);
928 username[len] = '\0';
930 if ( v5cred->client->length > 1 ) {
931 strcat(username, ".");
932 p = username + strlen(username);
933 len = min(v5cred->client->data[1].length, (unsigned int)(MAXKTCNAMELEN - strlen(username) - 1));
934 strncpy(p, v5cred->client->data[1].data, len);
938 memset(&atoken, '\0', sizeof(atoken));
939 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
940 atoken.startTime = v5cred->times.starttime;
941 atoken.endTime = v5cred->times.endtime;
942 memcpy(&atoken.sessionKey, v5cred->keyblock.contents, v5cred->keyblock.length);
943 atoken.ticketLen = v5cred->ticket.length;
944 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
947 strcpy (username, c.pname);
950 strcat(username, ".");
951 strcat(username, c.pinst);
954 atoken.kvno = c.kvno;
955 atoken.startTime = c.issue_date;
956 /* ticket lifetime is in five-minutes blocks. */
957 atoken.endTime = c.issue_date + ((unsigned char)c.lifetime * 5 * 60);
959 memcpy(&atoken.sessionKey, c.session, 8);
960 atoken.ticketLen = c.ticket_st.length;
961 memcpy(atoken.ticket, c.ticket_st.dat, atoken.ticketLen);
969 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
970 atoken.kvno == btoken.kvno &&
971 atoken.ticketLen == btoken.ticketLen &&
972 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
973 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen))
976 printf("Identical tokens already exist; skipping.\n");
977 status = AKLOG_SUCCESS;
984 printf("Not resolving name %s to id (-noprdb set)\n", username);
990 if ((status = krb_get_tf_realm(TKT_FILE, realm_of_user)) != KSUCCESS)
992 fprintf(stderr, "%s: Couldn't determine realm of user: %s)",
993 progname, krb_err_text(status));
994 status = AKLOG_KERBEROS;
1003 /* For Network Identity Manager append the realm to the name */
1004 strcat(username, "@");
1005 strcat(username, realm_of_user);
1007 ViceIDToUsername(username, realm_of_user, realm_of_cell, cell_to_use,
1013 &status, &aclient, &aserver, &atoken);
1017 printf("Set username to %s\n", username);
1019 /* Reset the "aclient" structure before we call ktc_SetToken.
1020 * This structure was first set by the ktc_GetToken call when
1021 * we were comparing whether identical tokens already existed.
1023 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
1024 strcpy(aclient.instance, "");
1026 if (usev5 && !use524) {
1027 int len = min(v5cred->client->realm.length,MAXKTCNAMELEN - 1);
1028 strncpy(aclient.cell, v5cred->client->realm.data, len);
1029 aclient.cell[len] = '\0';
1033 strncpy(aclient.cell, c.realm, MAXKTCREALMLEN - 1);
1036 for ( i=0; aclient.cell[i]; i++ ) {
1037 if ( islower(aclient.cell[i]) )
1038 aclient.cell[i] = toupper(aclient.cell[i]);
1042 printf("Getting tokens.\n");
1043 if (status = ktc_SetToken(&aserver, &atoken, &aclient, 0))
1045 afs_com_err(progname, status,
1046 "while obtaining tokens for cell %s\n",
1048 status = AKLOG_TOKEN;
1052 if (ak_cellconfig.linkedCell && !getLinkedCell) {
1060 * intentionally leak the linkedCell field because it was allocated
1061 * using a different C RTL version.
1063 if (ak_cellconfig.linkedCell)
1064 free(ak_cellconfig.linkedCell);
1069 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
1071 char our_file[MAXPATHLEN + 1];
1073 char *last_component;
1074 struct ViceIoctl vio;
1075 char cellname[BUFSIZ];
1077 memset(our_file, 0, sizeof(our_file));
1078 strcpy(our_file, file);
1080 if (last_component = LastComponent(our_file))
1082 *last_component++ = 0;
1083 parent_dir = our_file;
1087 last_component = our_file;
1091 memset(cellname, 0, sizeof(cellname));
1093 vio.in = last_component;
1094 vio.in_size = (long)strlen(last_component)+1;
1095 vio.out_size = size;
1096 vio.out = mountpoint;
1098 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0))
1100 if (strchr(mountpoint, VOLMARKER) == NULL)
1103 vio.in_size = (long)strlen(file) + 1;
1104 vio.out_size = sizeof(cellname);
1107 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1))
1109 strcat(cellname, VOLMARKERSTRING);
1110 strcat(cellname, mountpoint + 1);
1111 memset(mountpoint + 1, 0, size - 1);
1112 strcpy(mountpoint + 1, cellname);
1123 * This routine each time it is called returns the next directory
1124 * down a pathname. It resolves all symbolic links. The first time
1125 * it is called, it should be called with the name of the path
1126 * to be descended. After that, it should be called with the arguemnt
1129 static char *next_path(char *origpath)
1131 static char path[MAXPATHLEN + 1];
1132 static char pathtocheck[MAXPATHLEN + 1];
1134 int link = FALSE; /* Is this a symbolic link? */
1135 char linkbuf[MAXPATHLEN + 1];
1136 char tmpbuf[MAXPATHLEN + 1];
1138 static char *last_comp; /* last component of directory name */
1139 static char *elast_comp; /* End of last component */
1143 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
1145 /* If we are given something for origpath, we are initializing only. */
1148 memset(path, 0, sizeof(path));
1149 memset(pathtocheck, 0, sizeof(pathtocheck));
1150 CopyPathColon(origpath, path, pathtocheck);
1156 /* We were not given origpath; find then next path to check */
1158 /* If we've gotten all the way through already, return NULL */
1159 if (last_comp == NULL)
1164 while (BeginsWithDir(last_comp, FALSE))
1165 strncat(pathtocheck, last_comp++, 1);
1166 len = (int) ((elast_comp = LastComponent(last_comp))
1167 ? elast_comp - last_comp : strlen(last_comp));
1168 strncat(pathtocheck, last_comp, len);
1169 memset(linkbuf, 0, sizeof(linkbuf));
1170 if (link = (readlink(pathtocheck, linkbuf, sizeof(linkbuf)) > 0))
1172 if (++symlinkcount > MAXSYMLINKS)
1174 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
1175 akexit(AKLOG_BADPATH);
1177 memset(tmpbuf, 0, sizeof(tmpbuf));
1179 strcpy(tmpbuf, elast_comp);
1180 if (BeginsWithDir(linkbuf, FALSE))
1183 * If this is a symbolic link to an absolute path,
1184 * replace what we have by the absolute path.
1186 memset(path, 0, strlen(path));
1187 memcpy(path, linkbuf, sizeof(linkbuf));
1188 strcat(path, tmpbuf);
1191 memset(pathtocheck, 0, sizeof(pathtocheck));
1196 * If this is a symbolic link to a relative path,
1197 * replace only the last component with the link name.
1199 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
1200 strcat(path, tmpbuf);
1202 if (t = LastComponent(pathtocheck))
1205 memset(t, 0, strlen(t));
1208 memset(pathtocheck, 0, sizeof(pathtocheck));
1212 last_comp = elast_comp;
1216 return(pathtocheck);
1220 * This routine descends through a path to a directory, logging to
1221 * every cell it encounters along the way.
1223 static int auth_to_path(krb5_context context, char *path)
1225 int status = AKLOG_SUCCESS;
1226 int auth_to_cell_status = AKLOG_SUCCESS;
1229 char pathtocheck[MAXPATHLEN + 1];
1230 char mountpoint[MAXPATHLEN + 1];
1236 if (BeginsWithDir(path, TRUE))
1237 strcpy(pathtocheck, path);
1240 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL)
1242 fprintf(stderr, "Unable to find current working directory:\n");
1243 fprintf(stderr, "%s\n", pathtocheck);
1244 fprintf(stderr, "Try an absolute pathname.\n");
1245 akexit(AKLOG_BADPATH);
1249 /* in WIN32, if getcwd returns a root dir (eg: c:\), the returned string
1250 * will already have a trailing slash ('\'). Otherwise, the string will
1251 * end in the last directory name */
1253 if(pathtocheck[strlen(pathtocheck) - 1] != BDIR)
1255 strcat(pathtocheck, DIRSTRING);
1256 strcat(pathtocheck, path);
1259 next_path(pathtocheck);
1261 /* Go on to the next level down the path */
1262 while (nextpath = next_path(NULL))
1264 strcpy(pathtocheck, nextpath);
1266 printf("Checking directory [%s]\n", pathtocheck);
1268 * If this is an afs mountpoint, determine what cell from
1269 * the mountpoint name which is of the form
1270 * #cellname:volumename or %cellname:volumename.
1272 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint)))
1275 printf("Found mount point [%s]\n", mountpoint);
1276 /* skip over the '#' or '%' */
1277 cell = mountpoint + 1;
1278 if (endofcell = strchr(mountpoint, VOLMARKER))
1281 if (auth_to_cell_status = auth_to_cell(context, cell, NULL))
1283 if (status == AKLOG_SUCCESS)
1284 status = auth_to_cell_status;
1285 else if (status != auth_to_cell_status)
1286 status = AKLOG_SOMETHINGSWRONG;
1294 if (lstat(pathtocheck, &st) < 0)
1297 * If we've logged and still can't stat, there's
1300 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1301 pathtocheck, strerror(errno));
1302 return(AKLOG_BADPATH);
1304 else if (!S_ISDIR(st.st_mode))
1306 /* Allow only directories */
1307 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1309 return(AKLOG_BADPATH);
1317 /* Print usage message and exit */
1318 static void usage(void)
1320 fprintf(stderr, "\nUsage: %s %s%s%s%s\n", progname,
1321 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1322 "[[-p | -path] pathname]\n",
1323 " [-noprdb] [-force]\n",
1330 fprintf(stderr, " -d gives debugging information.\n");
1331 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1332 fprintf(stderr, " pathname is the name of a directory to which ");
1333 fprintf(stderr, "you wish to authenticate.\n");
1334 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1336 fprintf(stderr, " -5 or -4 selects whether to use Kerberos v5 or Kerberos v4.\n"
1337 " (default is Kerberos v5)\n");
1338 fprintf(stderr, " -m means use krb524d to convert Kerberos v5 tickets.\n");
1340 fprintf(stderr, " -5 use Kerberos v5.\n"
1341 " (only Kerberos v5 is available)\n");
1343 fprintf(stderr, " No commandline arguments means ");
1344 fprintf(stderr, "authenticate to the local cell.\n");
1345 fprintf(stderr, "\n");
1346 akexit(AKLOG_USAGE);
1350 #define KRB5LIB "krb5_32.dll"
1352 #define KRB5LIB "krb5_64.dll"
1355 load_krb5_error_message_funcs(void)
1357 HINSTANCE h = LoadLibrary(KRB5LIB);
1359 (FARPROC)pkrb5_get_error_message = GetProcAddress(h, "krb5_get_error_message");
1360 (FARPROC)pkrb5_free_error_message = GetProcAddress(h, "krb5_free_error_message");
1365 validate_krb5_availability(void)
1367 HINSTANCE h = LoadLibrary(KRB5LIB);
1371 fprintf(stderr, "Kerberos for Windows library %s is not available.\n", KRB5LIB);
1372 akexit(AKLOG_KFW_NOT_INSTALLED);
1377 validate_krb4_availability(void)
1380 HINSTANCE h = LoadLibrary("krbv4w32.dll");
1384 fprintf(stderr, "Kerberos for Windows library krbv4w32.dll is not available.\n");
1385 akexit(AKLOG_KFW_NOT_INSTALLED);
1388 fprintf(stderr, "Kerberos v4 is not available in this build of aklog.\n");
1389 akexit(AKLOG_USAGE);
1393 int main(int argc, char *argv[])
1395 int status = AKLOG_SUCCESS;
1397 int somethingswrong = FALSE;
1399 cellinfo_t cellinfo;
1401 extern char *progname; /* Name of this program */
1403 extern int dflag; /* Debug mode */
1405 int cmode = FALSE; /* Cellname mode */
1406 int pmode = FALSE; /* Path name mode */
1408 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1409 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1410 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1412 linked_list cells; /* List of cells to log to */
1413 linked_list paths; /* List of paths to log to */
1416 memset(&cellinfo, 0, sizeof(cellinfo));
1418 memset(realm, 0, sizeof(realm));
1419 memset(cell, 0, sizeof(cell));
1420 memset(path, 0, sizeof(path));
1425 /* Store the program name here for error messages */
1426 if (progname = LastComponent(argv[0]))
1431 /* Initialize list of cells to which we have authenticated */
1432 (void)ll_init(&authedcells);
1434 /* Parse commandline arguments and make list of what to do. */
1435 for (i = 1; i < argc; i++)
1437 if (strcmp(argv[i], "-d") == 0)
1439 else if (strcmp(argv[i], "-5") == 0)
1442 else if (strcmp(argv[i], "-m") == 0)
1444 else if (strcmp(argv[i], "-4") == 0)
1447 else if (strcmp(argv[i], "-noprdb") == 0)
1449 else if (strcmp(argv[i], "-force") == 0)
1451 else if (((strcmp(argv[i], "-cell") == 0) ||
1452 (strcmp(argv[i], "-c") == 0)) && !pmode)
1457 strcpy(cell, argv[i]);
1462 else if (((strcmp(argv[i], "-path") == 0) ||
1463 (strcmp(argv[i], "-p") == 0)) && !cmode)
1468 strcpy(path, argv[i]);
1473 else if (argv[i][0] == '-')
1475 else if (!pmode && !cmode)
1477 if (FirstComponent(argv[i]) || (strcmp(argv[i], ".") == 0) ||
1478 (strcmp(argv[i], "..") == 0))
1481 strcpy(path, argv[i]);
1486 strcpy(cell, argv[i]);
1494 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0))
1498 strcpy(realm, argv[i]);
1502 /* Add this cell to list of cells */
1503 strcpy(cellinfo.cell, cell);
1504 strcpy(cellinfo.realm, realm);
1505 if (cur_node = ll_add_node(&cells, ll_tail))
1508 if (new_cellinfo = copy_cellinfo(&cellinfo))
1509 ll_add_data(cur_node, new_cellinfo);
1512 fprintf(stderr, "%s: failure copying cellinfo.\n", progname);
1518 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1522 memset(&cellinfo, 0, sizeof(cellinfo));
1524 memset(cell, 0, sizeof(cell));
1525 memset(realm, 0, sizeof(realm));
1529 /* Add this path to list of paths */
1530 if (cur_node = ll_add_node(&paths, ll_tail))
1533 if (new_path = strdup(path))
1534 ll_add_data(cur_node, new_path);
1537 fprintf(stderr, "%s: failure copying path name.\n",
1544 fprintf(stderr, "%s: failure adding path to paths list.\n",
1549 memset(path, 0, sizeof(path));
1554 initialize_PT_error_table();
1557 validate_krb5_availability();
1558 if (krb5_init_context(&context))
1559 return(AKLOG_KERBEROS);
1560 load_krb5_error_message_funcs();
1562 validate_krb4_availability();
1563 afs_set_com_err_hook(redirect_errors);
1565 /* If nothing was given, log to the local cell. */
1566 if ((cells.nelements + paths.nelements) == 0)
1567 status = auth_to_cell(context, NULL, NULL);
1570 /* Log to all cells in the cells list first */
1571 for (cur_node = cells.first; cur_node; cur_node = cur_node->next)
1573 memcpy(&cellinfo, cur_node->data, sizeof(cellinfo));
1574 if (status = auth_to_cell(context,
1575 cellinfo.cell, cellinfo.realm))
1579 /* Then, log to all paths in the paths list */
1580 for (cur_node = paths.first; cur_node; cur_node = cur_node->next)
1582 if (status = auth_to_path(context,
1588 * If only one thing was logged to, we'll return the status
1589 * of the single call. Otherwise, we'll return a generic
1590 * something failed status.
1592 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1593 status = AKLOG_SOMETHINGSWRONG;