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>
56 #include <afs/com_err.h>
65 #define CREDENTIALS void
68 #include <afs/ptserver.h>
69 #include <afs/ptuser.h>
70 #include <afs/pterror.h>
75 #include <cm_config.h>
77 #include <cellconfig.h>
78 #include <pioctl_nt.h>
79 #include <smb_iocons.h>
83 #define __S_ISTYPE(mode, mask) (((mode) & _S_IFMT) == (mask))
84 #define S_ISDIR(mode) __S_ISTYPE((mode), _S_IFDIR)
86 #define DONT_HAVE_GET_AD_TKT
87 #define MAXSYMLINKS 255
90 /* Win32 uses get_krb_err_txt_entry(status) instead of krb_err_txt[status],
91 * so we use a bit of indirection like the GNU CVS sources.
93 #define krb_err_text(status) get_krb_err_txt_entry(status)
96 #define DRIVECOLON ':' /* Drive letter separator */
97 #define BDIR '\\' /* Other character that divides directories */
100 readlink(char *path, char *buf, int buffers)
105 char * getcwd(char*, size_t);
108 get_cellconfig_callback(void *cellconfig, struct sockaddr_in *addrp, char *namep)
110 struct afsconf_cell *cc = (struct afsconf_cell *) cellconfig;
112 cc->hostAddr[cc->numServers] = *addrp;
113 strcpy(cc->hostName[cc->numServers], namep);
119 #include <sys/param.h>
121 #include <arpa/inet.h>
122 #include <sys/socket.h>
125 #include <afs/param.h>
126 #include <afs/auth.h>
127 #include <afs/cellconfig.h>
128 #include <afs/vice.h>
129 #include <afs/venus.h>
130 #include <afs/ptserver.h>
132 #define krb_err_text(status) krb_err_txt[status]
134 /* Cheesy test for determining AFS 3.5. */
135 #ifndef AFSCONF_CLIENTNAME
140 #include <afs/dirpath.h>
142 #define AFSDIR_CLIENT_ETC_DIRPATH AFSCONF_CLIENTNAME
147 #include "linked_list.h"
152 #define AKLOG_SUCCESS 0
153 #define AKLOG_USAGE 1
154 #define AKLOG_SOMETHINGSWRONG 2
156 #define AKLOG_KERBEROS 4
157 #define AKLOG_TOKEN 5
158 #define AKLOG_BADPATH 6
160 #define AKLOG_KFW_NOT_INSTALLED 8
175 #define MAXSYMLINKS 15
178 #define DIR '/' /* Character that divides directories */
179 #define DIRSTRING "/" /* String form of above */
180 #define VOLMARKER ':' /* Character separating cellname from mntpt */
181 #define VOLMARKERSTRING ":" /* String form of above */
185 char realm[REALM_SZ];
189 static char *progname = NULL; /* Name of this program */
190 static int dflag = FALSE; /* Give debugging information */
191 static int noprdb = FALSE; /* Skip resolving name to id? */
192 static int force = FALSE; /* Bash identical tokens? */
193 static linked_list authedcells; /* List of cells already logged to */
195 static int usev5 = TRUE; /* use kerberos 5? */
196 static int use524 = FALSE; /* use krb524? */
197 static krb5_context context = 0;
198 static krb5_ccache _krb425_ccache = 0;
200 static char * (KRB5_CALLCONV *pkrb5_get_error_message)(krb5_context context, krb5_error_code code)=NULL;
201 static void (KRB5_CALLCONV *pkrb5_free_error_message)(krb5_context context, char *s) = NULL;
203 void akexit(int exit_code)
206 krb5_cc_close(context, _krb425_ccache);
208 krb5_free_context(context);
212 /* A com_error bodge. The idea here is that this routine lets us lookup
213 * things in the system com_err, if the AFS one just tells us the error
218 redirect_errors(const char *who, afs_int32 code, const char *fmt, va_list ap)
226 char *str = (char *)afs_error_message(code);
227 if (strncmp(str, "unknown", strlen(str)) == 0) {
228 if (pkrb5_get_error_message) {
229 str = pkrb5_get_error_message(NULL, code);
232 str = (char *)error_message(code);
237 pkrb5_free_error_message(NULL, str);
240 vfprintf(stderr, fmt, ap);
246 long GetLocalCell(struct afsconf_dir **pconfigdir, char *local_cell)
248 if (!(*pconfigdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH)))
250 fprintf(stderr, "%s: can't get afs configuration (afsconf_Open(%s))\n",
251 progname, AFSDIR_CLIENT_ETC_DIRPATH);
255 return afsconf_GetLocalCell(*pconfigdir, local_cell, MAXCELLCHARS);
258 long GetCellInfo(struct afsconf_dir **pconfigdir, char* cell,
259 struct afsconf_cell **pcellconfig)
261 return afsconf_GetCellInfo(*pconfigdir, cell, NULL, *pcellconfig);
264 void CloseConf(struct afsconf_dir **pconfigdir)
266 (void) afsconf_Close(*pconfigdir);
269 #define ALLOW_REGISTER 1
270 void ViceIDToUsername(char *username, char *realm_of_user, char *realm_of_cell,
271 char * cell_to_use, CREDENTIALS *c,
273 struct ktc_principal *aclient, struct ktc_principal *aserver, struct ktc_token *atoken)
275 static char lastcell[MAXCELLCHARS+1] = { 0 };
276 static char confname[512] = { 0 };
277 char username_copy[BUFSIZ];
278 afs_int32 viceId; /* AFS uid of user */
280 if (confname[0] == '\0') {
281 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
282 confname[sizeof(confname) - 2] = '\0';
286 printf("About to resolve name %s to id\n", username);
288 strcpy(lastcell, aserver->cell);
290 if (!pr_Initialize (0, confname, aserver->cell)) {
291 char sname[PR_MAXNAMELEN], *at;
293 strncpy(sname, username, PR_MAXNAMELEN);
294 sname[PR_MAXNAMELEN-1] = '\0';
296 at = strchr(sname, '@');
297 if (at && !stricmp(at+1, realm_of_cell))
299 *status = pr_SNameToId (sname, &viceId);
305 printf("pr_SNameToId Error %s\n", afs_error_message(*status));
307 printf("Id %d\n", viceId);
311 * This code is taken from cklog -- it lets people
312 * automatically register with the ptserver in foreign cells
315 #ifdef ALLOW_REGISTER
317 if (viceId != ANONYMOUSID) {
318 #else /* ALLOW_REGISTER */
319 if ((*status == 0) && (viceId != ANONYMOUSID))
320 #endif /* ALLOW_REGISTER */
322 #ifdef AFS_ID_TO_NAME
323 strncpy(username_copy, username, BUFSIZ);
324 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
325 #endif /* AFS_ID_TO_NAME */
327 #ifdef ALLOW_REGISTER
328 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
331 printf("doing first-time registration of %s "
332 "at %s\n", username, cell_to_use);
334 strncpy(aclient->name, username, MAXKTCNAMELEN - 1);
335 aclient->name[MAXKTCNAMELEN - 1] = '\0';
336 strcpy(aclient->instance, "");
337 strncpy(aclient->cell, cell_to_use, MAXKTCREALMLEN - 1);
338 aclient->cell[MAXKTCREALMLEN - 1] = '\0';
340 for ( i=0; aclient->cell[i]; i++ ) {
341 if ( islower(aclient->cell[i]) )
342 aclient->cell[i] = toupper(aclient->cell[i]);
345 if ((*status = ktc_SetToken(aserver, atoken, aclient, 0))) {
346 afs_com_err(progname, *status,
347 "while obtaining tokens for cell %s\n",
349 *status = AKLOG_TOKEN;
354 * In case you're wondering, we don't need to change the
355 * filename here because we're still connecting to the
356 * same cell -- we're just using a different authentication
360 if ((*status = pr_Initialize(1L, confname, aserver->cell))) {
361 printf("pr_Initialize Error %s\n", afs_error_message(*status));
365 /* copy the name because pr_CreateUser lowercases the realm */
366 strncpy(username_copy, username, BUFSIZ);
369 *status = pr_CreateUser(username_copy, &viceId);
372 printf("%s: unable to create remote PTS "
373 "user %s in cell %s (status: %s).\n", progname,
374 username_copy, cell_to_use, afs_error_message(*status));
376 printf("created cross-cell entry for %s (Id %d) at %s\n",
377 username_copy, viceId, cell_to_use);
378 #ifdef AFS_ID_TO_NAME
379 snprintf (username, BUFSIZ, "%s (AFS ID %d)", username_copy, (int) viceId);
380 #endif /* AFS_ID_TO_NAME */
384 #endif /* ALLOW_REGISTER */
387 char *LastComponent(char *str)
389 char *ret = strrchr(str, DIR);
393 ret = strrchr(str, BDIR);
398 int FirstComponent(char *str)
407 void CopyPathColon(char *origpath, char *path, char *pathtocheck)
410 if (origpath[1] == DRIVECOLON)
412 strncpy(pathtocheck, origpath, 2);
413 strcpy(path, origpath+2);
417 strcpy(path, origpath);
420 int BeginsWithDir(char *str, int colon)
422 return (str[0] == DIR) ||
424 ((str[0] == BDIR) || (colon && str[1] == DRIVECOLON));
431 /* This is a pretty gross hack. Linking against the Transarc
432 * libraries pulls in some rxkad functions which use des. (I don't
433 * think they ever get called.) With Transarc-supplied libraries this
434 * creates a reliance on the symbol des_pcbc_init() which is only in
435 * Transarc's DES libraries (it's an exportability symbol-hiding
436 * thing), which we don't want to use because they don't work with
437 * MIT's krb4 routines. So export a des_pcbc_init() symbol here so we
438 * don't have to link against Transarc's des library.
443 return 0; /* avoid warning */
447 static int get_cred(char *name, char *inst, char *realm, CREDENTIALS *c)
451 status = krb_get_cred(name, inst, realm, c);
452 if (status != KSUCCESS)
454 #ifdef DONT_HAVE_GET_AD_TKT
456 status = krb_mk_req(&ticket, name, inst, realm, 0);
458 status = get_ad_tkt(name, inst, realm, 255);
460 if (status == KSUCCESS)
461 status = krb_get_cred(name, inst, realm, c);
468 static int get_v5cred(krb5_context context,
469 char *name, char *inst, char *realm, CREDENTIALS *c,
474 static krb5_principal client_principal = 0;
476 if (client_principal) {
477 krb5_free_principal(context, client_principal);
478 client_principal = 0;
481 memset(&increds, 0, sizeof(increds));
483 if ((r = krb5_build_principal(context, &increds.server,
484 (int)strlen(realm), realm,
486 (inst && strlen(inst)) ? inst : 0,
491 if (!_krb425_ccache) {
492 if ((r = krb5_cc_default(context, &_krb425_ccache)))
495 if (!client_principal) {
496 if ((r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal))) {
497 krb5_cc_close(context, _krb425_ccache);
502 increds.client = client_principal;
503 increds.times.endtime = 0;
504 /* Ask for DES since that is what V4 understands */
505 increds.keyblock.enctype = ENCTYPE_DES_CBC_CRC;
507 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
511 /* This requires krb524d to be running with the KDC */
513 r = krb5_524_convert_creds(context, *creds, c);
519 /* There is no header for this function. It is supposed to be private */
520 int krb_get_admhst(char *h,char *r, int n);
522 static char *afs_realm_of_cell(struct afsconf_cell *cellconfig)
524 char krbhst[MAX_HSTNM];
525 static char krbrlm[REALM_SZ+1];
530 strcpy(krbrlm, (char *) krb_realmofhost(cellconfig->hostName[0]));
532 if (krb_get_admhst(krbhst, krbrlm, 1) != KSUCCESS)
535 char *t = cellconfig->name;
550 /* As of MIT Kerberos 1.6, krb5_get_host_realm() will return the NUL-string
551 * if there is no domain_realm mapping for the hostname's domain. This is
552 * used as a trigger indicating that referrals should be used within the
553 * krb5_get_credentials() call. However, if the KDC does not support referrals
554 * that will result in a KRB5_ERR_HOST_REALM_UNKNOWN error and we will have
555 * to manually fallback to mapping the domain of the host as a realm name.
556 * Hence, the new fallback parameter.
558 static char *afs_realm_of_cell5(krb5_context context, struct afsconf_cell *cellconfig, int fallback)
561 static char krbrlm[REALM_SZ+1];
562 krb5_error_code status;
569 p = strchr(cellconfig->hostName[0], '.');
573 strcpy(krbrlm, cellconfig->name);
576 status = krb5_get_host_realm( context, cellconfig->hostName[0], &krbrlms );
577 if (status == 0 && krbrlms && krbrlms[0]) {
578 strcpy(krbrlm, krbrlms[0]);
580 strcpy(krbrlm, cellconfig->name);
585 krb5_free_host_realm( context, krbrlms );
590 static char *copy_cellinfo(cellinfo_t *cellinfo)
592 cellinfo_t *new_cellinfo;
594 if (new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t)))
595 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
597 return ((char *)new_cellinfo);
601 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig,
604 int status = AKLOG_SUCCESS;
605 struct afsconf_dir *configdir = 0;
607 memset(local_cell, 0, sizeof(local_cell));
608 memset(cellconfig, 0, sizeof(*cellconfig));
610 if (GetLocalCell(&configdir, local_cell))
612 fprintf(stderr, "%s: can't determine local cell.\n", progname);
616 if ((cell == NULL) || (cell[0] == 0))
619 if (GetCellInfo(&configdir, cell, &cellconfig))
621 fprintf(stderr, "%s: Can't get information about cell %s.\n",
626 if (cellconfig->linkedCell)
627 cellconfig->linkedCell = strdup(cellconfig->linkedCell);
629 CloseConf(&configdir);
634 static int get_v5_user_realm(krb5_context context,char *realm)
636 static krb5_principal client_principal = 0;
637 krb5_error_code code;
640 if (!_krb425_ccache) {
641 code = krb5_cc_default(context, &_krb425_ccache);
645 if (!client_principal) {
646 code = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
650 i = krb5_princ_realm(context, client_principal)->length;
651 if (i < REALM_SZ-1) i = REALM_SZ-1;
652 strncpy(realm,krb5_princ_realm(context, client_principal)->data,i);
658 copy_realm_of_ticket(krb5_context context, char * dest, size_t destlen, krb5_creds *v5cred) {
659 krb5_error_code code;
663 code = krb5_decode_ticket(&v5cred->ticket, &ticket);
665 len = krb5_princ_realm(context, ticket->server)->length;
666 if (len > destlen - 1)
669 strncpy(dest, krb5_princ_realm(context, ticket->server)->data, len);
672 krb5_free_ticket(context, ticket);
677 * Log to a cell. If the cell has already been logged to, return without
678 * doing anything. Otherwise, log to it and mark that it has been logged
680 static int auth_to_cell(krb5_context context, char *cell, char *realm)
682 int status = AKLOG_SUCCESS;
683 char username[BUFSIZ]; /* To hold client username structure */
685 char name[ANAME_SZ]; /* Name of afs key */
686 char instance[INST_SZ]; /* Instance of afs key */
687 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
688 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
689 char local_cell[MAXCELLCHARS+1];
690 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
692 krb5_creds *v5cred = NULL;
696 struct ktc_principal aserver;
697 struct ktc_principal aclient;
698 struct ktc_token atoken, btoken;
699 struct afsconf_cell ak_cellconfig; /* General information about the cell */
701 int getLinkedCell = 0;
703 /* try to avoid an expensive call to get_cellconfig */
704 if (cell && ll_string_check(&authedcells, cell))
707 printf("Already authenticated to %s (or tried to)\n", cell);
708 return(AKLOG_SUCCESS);
711 memset(name, 0, sizeof(name));
712 memset(instance, 0, sizeof(instance));
713 memset(realm_of_user, 0, sizeof(realm_of_user));
714 memset(realm_of_cell, 0, sizeof(realm_of_cell));
715 memset(&ak_cellconfig, 0, sizeof(ak_cellconfig));
717 /* NULL or empty cell returns information on local cell */
718 if (status = get_cellconfig(cell, &ak_cellconfig, local_cell))
723 strncpy(cell_to_use, ak_cellconfig.linkedCell, MAXCELLCHARS);
725 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
726 cell_to_use[MAXCELLCHARS] = 0;
728 if (ll_string_check(&authedcells, cell_to_use))
731 printf("Already authenticated to %s (or tried to)\n", cell_to_use);
732 status = AKLOG_SUCCESS;
737 * Record that we have attempted to log to this cell. We do this
738 * before we try rather than after so that we will not try
739 * and fail repeatedly for one cell.
741 (void)ll_add_string(&authedcells, cell_to_use);
744 printf("Authenticating to cell %s.\n", cell_to_use);
746 /* We use the afs.<cellname> convention here... */
747 strcpy(name, AFSKEY);
748 strncpy(instance, cell_to_use, sizeof(instance));
749 instance[sizeof(instance)-1] = '\0';
752 * Extract the session key from the ticket file and hand-frob an
753 * afs style authenticator.
759 int realm_fallback = 0;
761 if ((status = get_v5_user_realm(context, realm_of_user)) != KSUCCESS) {
764 if (pkrb5_get_error_message)
765 msg = pkrb5_get_error_message(context, status);
767 msg = (char *)error_message(status);
768 fprintf(stderr, "%s: Couldn't determine realm of user: %s\n",
770 if (pkrb5_free_error_message)
771 pkrb5_free_error_message(context, msg);
772 status = AKLOG_KERBEROS;
776 if ( strchr(name,'.') != NULL ) {
777 fprintf(stderr, "%s: Can't support principal names including a dot.\n",
784 if (realm && realm[0]) {
786 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm);
787 status = get_v5cred(context, name, instance, realm,
794 strcpy(realm_of_cell, realm);
796 strcpy(realm_of_cell,
797 afs_realm_of_cell5(context, &ak_cellconfig, realm_fallback));
799 if (retry == 1 && realm_fallback == 0) {
800 /* Only try the realm_of_user once */
803 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_user);
804 status = get_v5cred(context, name, instance, realm_of_user,
812 /* we have determined that the client realm
813 * is a valid cell realm
815 strcpy(realm_of_cell, realm_of_user);
819 if (status != 0 && (!retry || retry && strcmp(realm_of_user,realm_of_cell))) {
821 printf("Getting v5 tickets: %s/%s@%s\n", name, instance, realm_of_cell);
822 status = get_v5cred(context, name, instance, realm_of_cell,
829 if (!status && !strlen(realm_of_cell))
830 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
834 if (!realm_fallback && status == KRB5_ERR_HOST_REALM_UNKNOWN) {
837 } else if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
838 if (!realm_fallback && !realm_of_cell[0]) {
843 printf("Getting v5 tickets: %s@%s\n", name, realm_of_cell);
844 status = get_v5cred(context, name, "", realm_of_cell,
851 if (!status && !strlen(realm_of_cell))
852 copy_realm_of_ticket(context, realm_of_cell, sizeof(realm_of_cell), v5cred);
855 if ( status == KRB5KRB_AP_ERR_MSG_TYPE && retry ) {
864 if (realm && realm[0])
865 strcpy(realm_of_cell, realm);
867 strcpy(realm_of_cell, afs_realm_of_cell(&ak_cellconfig));
870 * Try to obtain AFS tickets. Because there are two valid service
871 * names, we will try both, but trying the more specific first.
877 printf("Getting tickets: %s.%s@%s\n", name, instance, realm_of_cell);
878 status = get_cred(name, instance, realm_of_cell, &c);
879 if (status == KDC_PR_UNKNOWN)
882 printf("Getting tickets: %s@%s\n", name, realm_of_cell);
883 status = get_cred(name, "", realm_of_cell, &c);
891 if (status != KSUCCESS)
895 printf("Kerberos error code returned by get_cred: %d\n", status);
898 if (pkrb5_get_error_message)
899 msg = pkrb5_get_error_message(context, status);
901 msg = (char *)error_message(status);
905 msg = krb_err_text(status);
907 fprintf(stderr, "%s: Couldn't get %s AFS tickets: %s\n",
908 progname, cell_to_use, msg?msg:"(unknown error)");
909 if (usev5 && pkrb5_free_error_message)
910 pkrb5_free_error_message(context, msg);
911 status = AKLOG_KERBEROS;
915 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
916 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
917 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
919 if (usev5 && !use524) {
920 /* This code inserts the entire K5 ticket into the token
921 * No need to perform a krb524 translation which is
922 * commented out in the code below
927 len = min(v5cred->client->data[0].length,MAXKTCNAMELEN - 1);
928 strncpy(username, v5cred->client->data[0].data, len);
929 username[len] = '\0';
931 if ( v5cred->client->length > 1 ) {
932 strcat(username, ".");
933 p = username + strlen(username);
934 len = min(v5cred->client->data[1].length, (unsigned int)(MAXKTCNAMELEN - strlen(username) - 1));
935 strncpy(p, v5cred->client->data[1].data, len);
939 memset(&atoken, '\0', sizeof(atoken));
940 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
941 atoken.startTime = v5cred->times.starttime;
942 atoken.endTime = v5cred->times.endtime;
943 memcpy(&atoken.sessionKey, v5cred->keyblock.contents, v5cred->keyblock.length);
944 atoken.ticketLen = v5cred->ticket.length;
945 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
948 strcpy (username, c.pname);
951 strcat(username, ".");
952 strcat(username, c.pinst);
955 atoken.kvno = c.kvno;
956 atoken.startTime = c.issue_date;
957 /* ticket lifetime is in five-minutes blocks. */
958 atoken.endTime = c.issue_date + ((unsigned char)c.lifetime * 5 * 60);
960 memcpy(&atoken.sessionKey, c.session, 8);
961 atoken.ticketLen = c.ticket_st.length;
962 memcpy(atoken.ticket, c.ticket_st.dat, atoken.ticketLen);
970 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
971 atoken.kvno == btoken.kvno &&
972 atoken.ticketLen == btoken.ticketLen &&
973 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
974 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen))
977 printf("Identical tokens already exist; skipping.\n");
978 status = AKLOG_SUCCESS;
985 printf("Not resolving name %s to id (-noprdb set)\n", username);
991 if ((status = krb_get_tf_realm(TKT_FILE, realm_of_user)) != KSUCCESS)
993 fprintf(stderr, "%s: Couldn't determine realm of user: %s)",
994 progname, krb_err_text(status));
995 status = AKLOG_KERBEROS;
1004 /* For Network Identity Manager append the realm to the name */
1005 strcat(username, "@");
1006 strcat(username, realm_of_user);
1008 ViceIDToUsername(username, realm_of_user, realm_of_cell, cell_to_use,
1014 &status, &aclient, &aserver, &atoken);
1018 printf("Set username to %s\n", username);
1020 /* Reset the "aclient" structure before we call ktc_SetToken.
1021 * This structure was first set by the ktc_GetToken call when
1022 * we were comparing whether identical tokens already existed.
1024 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
1025 strcpy(aclient.instance, "");
1027 if (usev5 && !use524) {
1028 int len = min(v5cred->client->realm.length,MAXKTCNAMELEN - 1);
1029 strncpy(aclient.cell, v5cred->client->realm.data, len);
1030 aclient.cell[len] = '\0';
1034 strncpy(aclient.cell, c.realm, MAXKTCREALMLEN - 1);
1037 for ( i=0; aclient.cell[i]; i++ ) {
1038 if ( islower(aclient.cell[i]) )
1039 aclient.cell[i] = toupper(aclient.cell[i]);
1043 printf("Getting tokens.\n");
1044 if (status = ktc_SetToken(&aserver, &atoken, &aclient, 0))
1046 afs_com_err(progname, status,
1047 "while obtaining tokens for cell %s\n",
1049 status = AKLOG_TOKEN;
1053 if (ak_cellconfig.linkedCell && !getLinkedCell) {
1061 * intentionally leak the linkedCell field because it was allocated
1062 * using a different C RTL version.
1064 if (ak_cellconfig.linkedCell)
1065 free(ak_cellconfig.linkedCell);
1070 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
1072 char our_file[MAXPATHLEN + 1];
1074 char *last_component;
1075 struct ViceIoctl vio;
1076 char cellname[BUFSIZ];
1078 memset(our_file, 0, sizeof(our_file));
1079 strcpy(our_file, file);
1081 if (last_component = LastComponent(our_file))
1083 *last_component++ = 0;
1084 parent_dir = our_file;
1088 last_component = our_file;
1092 memset(cellname, 0, sizeof(cellname));
1094 vio.in = last_component;
1095 vio.in_size = (long)strlen(last_component)+1;
1096 vio.out_size = size;
1097 vio.out = mountpoint;
1099 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0))
1101 if (strchr(mountpoint, VOLMARKER) == NULL)
1104 vio.in_size = (long)strlen(file) + 1;
1105 vio.out_size = sizeof(cellname);
1108 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1))
1110 strcat(cellname, VOLMARKERSTRING);
1111 strcat(cellname, mountpoint + 1);
1112 memset(mountpoint + 1, 0, size - 1);
1113 strcpy(mountpoint + 1, cellname);
1124 * This routine each time it is called returns the next directory
1125 * down a pathname. It resolves all symbolic links. The first time
1126 * it is called, it should be called with the name of the path
1127 * to be descended. After that, it should be called with the arguemnt
1130 static char *next_path(char *origpath)
1132 static char path[MAXPATHLEN + 1];
1133 static char pathtocheck[MAXPATHLEN + 1];
1135 int link = FALSE; /* Is this a symbolic link? */
1136 char linkbuf[MAXPATHLEN + 1];
1137 char tmpbuf[MAXPATHLEN + 1];
1139 static char *last_comp; /* last component of directory name */
1140 static char *elast_comp; /* End of last component */
1144 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
1146 /* If we are given something for origpath, we are initializing only. */
1149 memset(path, 0, sizeof(path));
1150 memset(pathtocheck, 0, sizeof(pathtocheck));
1151 CopyPathColon(origpath, path, pathtocheck);
1157 /* We were not given origpath; find then next path to check */
1159 /* If we've gotten all the way through already, return NULL */
1160 if (last_comp == NULL)
1165 while (BeginsWithDir(last_comp, FALSE))
1166 strncat(pathtocheck, last_comp++, 1);
1167 len = (int) ((elast_comp = LastComponent(last_comp))
1168 ? elast_comp - last_comp : strlen(last_comp));
1169 strncat(pathtocheck, last_comp, len);
1170 memset(linkbuf, 0, sizeof(linkbuf));
1171 if (link = (readlink(pathtocheck, linkbuf, sizeof(linkbuf)) > 0))
1173 if (++symlinkcount > MAXSYMLINKS)
1175 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
1176 akexit(AKLOG_BADPATH);
1178 memset(tmpbuf, 0, sizeof(tmpbuf));
1180 strcpy(tmpbuf, elast_comp);
1181 if (BeginsWithDir(linkbuf, FALSE))
1184 * If this is a symbolic link to an absolute path,
1185 * replace what we have by the absolute path.
1187 memset(path, 0, strlen(path));
1188 memcpy(path, linkbuf, sizeof(linkbuf));
1189 strcat(path, tmpbuf);
1192 memset(pathtocheck, 0, sizeof(pathtocheck));
1197 * If this is a symbolic link to a relative path,
1198 * replace only the last component with the link name.
1200 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
1201 strcat(path, tmpbuf);
1203 if (t = LastComponent(pathtocheck))
1206 memset(t, 0, strlen(t));
1209 memset(pathtocheck, 0, sizeof(pathtocheck));
1213 last_comp = elast_comp;
1217 return(pathtocheck);
1221 * This routine descends through a path to a directory, logging to
1222 * every cell it encounters along the way.
1224 static int auth_to_path(krb5_context context, char *path)
1226 int status = AKLOG_SUCCESS;
1227 int auth_to_cell_status = AKLOG_SUCCESS;
1230 char pathtocheck[MAXPATHLEN + 1];
1231 char mountpoint[MAXPATHLEN + 1];
1237 if (BeginsWithDir(path, TRUE))
1238 strcpy(pathtocheck, path);
1241 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL)
1243 fprintf(stderr, "Unable to find current working directory:\n");
1244 fprintf(stderr, "%s\n", pathtocheck);
1245 fprintf(stderr, "Try an absolute pathname.\n");
1246 akexit(AKLOG_BADPATH);
1250 /* in WIN32, if getcwd returns a root dir (eg: c:\), the returned string
1251 * will already have a trailing slash ('\'). Otherwise, the string will
1252 * end in the last directory name */
1254 if(pathtocheck[strlen(pathtocheck) - 1] != BDIR)
1256 strcat(pathtocheck, DIRSTRING);
1257 strcat(pathtocheck, path);
1260 next_path(pathtocheck);
1262 /* Go on to the next level down the path */
1263 while (nextpath = next_path(NULL))
1265 strcpy(pathtocheck, nextpath);
1267 printf("Checking directory [%s]\n", pathtocheck);
1269 * If this is an afs mountpoint, determine what cell from
1270 * the mountpoint name which is of the form
1271 * #cellname:volumename or %cellname:volumename.
1273 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint)))
1276 printf("Found mount point [%s]\n", mountpoint);
1277 /* skip over the '#' or '%' */
1278 cell = mountpoint + 1;
1279 if (endofcell = strchr(mountpoint, VOLMARKER))
1282 if (auth_to_cell_status = auth_to_cell(context, cell, NULL))
1284 if (status == AKLOG_SUCCESS)
1285 status = auth_to_cell_status;
1286 else if (status != auth_to_cell_status)
1287 status = AKLOG_SOMETHINGSWRONG;
1295 if (lstat(pathtocheck, &st) < 0)
1298 * If we've logged and still can't stat, there's
1301 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1302 pathtocheck, strerror(errno));
1303 return(AKLOG_BADPATH);
1305 else if (!S_ISDIR(st.st_mode))
1307 /* Allow only directories */
1308 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1310 return(AKLOG_BADPATH);
1318 /* Print usage message and exit */
1319 static void usage(void)
1321 fprintf(stderr, "\nUsage: %s %s%s%s%s\n", progname,
1322 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1323 "[[-p | -path] pathname]\n",
1324 " [-noprdb] [-force]\n",
1331 fprintf(stderr, " -d gives debugging information.\n");
1332 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1333 fprintf(stderr, " pathname is the name of a directory to which ");
1334 fprintf(stderr, "you wish to authenticate.\n");
1335 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1337 fprintf(stderr, " -5 or -4 selects whether to use Kerberos v5 or Kerberos v4.\n"
1338 " (default is Kerberos v5)\n");
1339 fprintf(stderr, " -m means use krb524d to convert Kerberos v5 tickets.\n");
1341 fprintf(stderr, " -5 use Kerberos v5.\n"
1342 " (only Kerberos v5 is available)\n");
1344 fprintf(stderr, " No commandline arguments means ");
1345 fprintf(stderr, "authenticate to the local cell.\n");
1346 fprintf(stderr, "\n");
1347 akexit(AKLOG_USAGE);
1351 #define KRB5LIB "krb5_32.dll"
1353 #define KRB5LIB "krb5_64.dll"
1356 load_krb5_error_message_funcs(void)
1358 HINSTANCE h = LoadLibrary(KRB5LIB);
1360 (FARPROC)pkrb5_get_error_message = GetProcAddress(h, "krb5_get_error_message");
1361 (FARPROC)pkrb5_free_error_message = GetProcAddress(h, "krb5_free_error_message");
1366 validate_krb5_availability(void)
1368 HINSTANCE h = LoadLibrary(KRB5LIB);
1372 fprintf(stderr, "Kerberos for Windows library %s is not available.\n", KRB5LIB);
1373 akexit(AKLOG_KFW_NOT_INSTALLED);
1378 validate_krb4_availability(void)
1381 HINSTANCE h = LoadLibrary("krbv4w32.dll");
1385 fprintf(stderr, "Kerberos for Windows library krbv4w32.dll is not available.\n");
1386 akexit(AKLOG_KFW_NOT_INSTALLED);
1389 fprintf(stderr, "Kerberos v4 is not available in this build of aklog.\n");
1390 akexit(AKLOG_USAGE);
1394 int main(int argc, char *argv[])
1396 int status = AKLOG_SUCCESS;
1398 int somethingswrong = FALSE;
1400 cellinfo_t cellinfo;
1402 extern char *progname; /* Name of this program */
1404 extern int dflag; /* Debug mode */
1406 int cmode = FALSE; /* Cellname mode */
1407 int pmode = FALSE; /* Path name mode */
1409 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1410 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1411 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1413 linked_list cells; /* List of cells to log to */
1414 linked_list paths; /* List of paths to log to */
1417 memset(&cellinfo, 0, sizeof(cellinfo));
1419 memset(realm, 0, sizeof(realm));
1420 memset(cell, 0, sizeof(cell));
1421 memset(path, 0, sizeof(path));
1426 /* Store the program name here for error messages */
1427 if (progname = LastComponent(argv[0]))
1432 /* Initialize list of cells to which we have authenticated */
1433 (void)ll_init(&authedcells);
1435 /* Parse commandline arguments and make list of what to do. */
1436 for (i = 1; i < argc; i++)
1438 if (strcmp(argv[i], "-d") == 0)
1440 else if (strcmp(argv[i], "-5") == 0)
1443 else if (strcmp(argv[i], "-m") == 0)
1445 else if (strcmp(argv[i], "-4") == 0)
1448 else if (strcmp(argv[i], "-noprdb") == 0)
1450 else if (strcmp(argv[i], "-force") == 0)
1452 else if (((strcmp(argv[i], "-cell") == 0) ||
1453 (strcmp(argv[i], "-c") == 0)) && !pmode)
1458 strcpy(cell, argv[i]);
1463 else if (((strcmp(argv[i], "-path") == 0) ||
1464 (strcmp(argv[i], "-p") == 0)) && !cmode)
1469 strcpy(path, argv[i]);
1474 else if (argv[i][0] == '-')
1476 else if (!pmode && !cmode)
1478 if (FirstComponent(argv[i]) || (strcmp(argv[i], ".") == 0) ||
1479 (strcmp(argv[i], "..") == 0))
1482 strcpy(path, argv[i]);
1487 strcpy(cell, argv[i]);
1495 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0))
1499 strcpy(realm, argv[i]);
1503 /* Add this cell to list of cells */
1504 strcpy(cellinfo.cell, cell);
1505 strcpy(cellinfo.realm, realm);
1506 if (cur_node = ll_add_node(&cells, ll_tail))
1509 if (new_cellinfo = copy_cellinfo(&cellinfo))
1510 ll_add_data(cur_node, new_cellinfo);
1513 fprintf(stderr, "%s: failure copying cellinfo.\n", progname);
1519 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1523 memset(&cellinfo, 0, sizeof(cellinfo));
1525 memset(cell, 0, sizeof(cell));
1526 memset(realm, 0, sizeof(realm));
1530 /* Add this path to list of paths */
1531 if (cur_node = ll_add_node(&paths, ll_tail))
1534 if (new_path = strdup(path))
1535 ll_add_data(cur_node, new_path);
1538 fprintf(stderr, "%s: failure copying path name.\n",
1545 fprintf(stderr, "%s: failure adding path to paths list.\n",
1550 memset(path, 0, sizeof(path));
1555 initialize_PT_error_table();
1558 validate_krb5_availability();
1559 if (krb5_init_context(&context))
1560 return(AKLOG_KERBEROS);
1561 load_krb5_error_message_funcs();
1563 validate_krb4_availability();
1564 afs_set_com_err_hook(redirect_errors);
1566 /* If nothing was given, log to the local cell. */
1567 if ((cells.nelements + paths.nelements) == 0)
1568 status = auth_to_cell(context, NULL, NULL);
1571 /* Log to all cells in the cells list first */
1572 for (cur_node = cells.first; cur_node; cur_node = cur_node->next)
1574 memcpy(&cellinfo, cur_node->data, sizeof(cellinfo));
1575 if (status = auth_to_cell(context,
1576 cellinfo.cell, cellinfo.realm))
1580 /* Then, log to all paths in the paths list */
1581 for (cur_node = paths.first; cur_node; cur_node = cur_node->next)
1583 if (status = auth_to_path(context,
1589 * If only one thing was logged to, we'll return the status
1590 * of the single call. Otherwise, we'll return a generic
1591 * something failed status.
1593 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1594 status = AKLOG_SOMETHINGSWRONG;