4 * Copyright 1990,1991 by the Massachusetts Institute of Technology
5 * For distribution and copying rights, see the file "mit-copyright.h"
8 #if !defined(lint) && !defined(SABER)
11 #endif /* lint || SABER */
13 #include <afsconfig.h>
17 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/errno.h>
36 #include <sys/socket.h>
37 #include <netinet/in.h>
38 #include <arpa/inet.h>
42 /* on AIX AFS has an unresolved reference to osi_audit. We will define
43 * it here as extern. It also trys to call the ntohl and htonl routines
44 * as routines rather then macros. We need a real routine here.
45 * We do this before the ntohl and htonl macros are defined in net/in.h
52 u_long htonl(u_long x)
55 u_long ntohl(u_long x)
59 #include <netinet/in.h>
60 /* #include <krb.h> */
70 #include <afs/dirpath.h>
73 #ifndef HAVE_KERBEROSV_HEIM_ERR_H
74 #include <afs/com_err.h>
77 #include <afs/param.h>
79 #include <sys/ioccom.h>
82 #include <afs/cellconfig.h>
84 #include <afs/venus.h>
85 #include <afs/ptserver.h>
86 #include <afs/ptuser.h>
87 #include <afs/dirpath.h>
91 #include "linked_list.h"
96 #ifndef AFS_TRY_FULL_PRINC
97 #define AFS_TRY_FULL_PRINC 1
98 #endif /* AFS_TRY_FULL_PRINC */
100 #define AKLOG_SUCCESS 0
101 #define AKLOG_USAGE 1
102 #define AKLOG_SOMETHINGSWRONG 2
104 #define AKLOG_KERBEROS 4
105 #define AKLOG_TOKEN 5
106 #define AKLOG_BADPATH 6
122 /* RedHat 4.x doesn't seem to define this */
123 #define MAXSYMLINKS 5
126 #define DIR '/' /* Character that divides directories */
127 #define DIRSTRING "/" /* String form of above */
128 #define VOLMARKER ':' /* Character separating cellname from mntpt */
129 #define VOLMARKERSTRING ":" /* String form of above */
133 char realm[REALM_SZ];
136 struct afsconf_cell ak_cellconfig; /* General information about the cell */
137 static char linkedcell[MAXCELLCHARS+1];
138 static char linkedcell2[MAXCELLCHARS+1];
139 static krb5_ccache _krb425_ccache = NULL;
144 extern long cm_GetRootCellName();
145 extern long cm_SearchCellFile();
147 static long cm_SearchCellFile_CallBack();
152 * Why doesn't AFS provide these prototypes?
155 extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32);
161 extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *);
162 static int isdir(char *, unsigned char *);
163 static krb5_error_code get_credv5(krb5_context context, char *, char *,
164 char *, krb5_creds **);
165 static int get_user_realm(krb5_context, char *);
167 #if defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
169 #define get_princ_str(c, p, n) krb5_princ_component(c, p, n)->data
170 #define get_princ_len(c, p, n) krb5_princ_component(c, p, n)->length
171 #define second_comp(c, p) (krb5_princ_size(c, p) > 1)
172 #define realm_data(c, p) krb5_princ_realm(c, p)->data
173 #define realm_len(c, p) krb5_princ_realm(c, p)->length
175 #elif defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING)
177 #define get_princ_str(c, p, n) krb5_principal_get_comp_string(c, p, n)
178 #define get_princ_len(c, p, n) strlen(krb5_principal_get_comp_string(c, p, n))
179 #define second_comp(c, p) (krb5_principal_get_comp_string(c, p, 1) != NULL)
180 #define realm_data(c, p) krb5_realm_data(krb5_principal_get_realm(c, p))
181 #define realm_len(c, p) krb5_realm_length(krb5_principal_get_realm(c, p))
184 #error "Must have either krb5_princ_size or krb5_principal_get_comp_string"
187 #if defined(HAVE_KRB5_CREDS_KEYBLOCK)
189 #define get_cred_keydata(c) c->keyblock.contents
190 #define get_cred_keylen(c) c->keyblock.length
191 #define get_creds_enctype(c) c->keyblock.enctype
193 #elif defined(HAVE_KRB5_CREDS_SESSION)
195 #define get_cred_keydata(c) c->session.keyvalue.data
196 #define get_cred_keylen(c) c->session.keyvalue.length
197 #define get_creds_enctype(c) c->session.keytype
200 #error "Must have either keyblock or session member of krb5_creds"
203 #if !defined(HAVE_KRB5_524_CONVERT_CREDS) && defined(HAVE_KRB524_CONVERT_CREDS_KDC)
204 #define krb5_524_convert_creds krb524_convert_creds_kdc
205 #elif !defined(HAVE_KRB5_524_CONVERT_CREDS) && !defined(HAVE_KRB524_CONVERT_CREDS_KDC)
206 #error "You must have one of krb5_524_convert_creds or krb524_convert_creds_kdc available"
212 * Provide a replacement for strerror if we don't have it
215 #ifndef HAVE_STRERROR
216 extern char *sys_errlist[];
217 #define strerror(x) sys_errlist[x]
218 #endif /* HAVE_STRERROR */
220 static char *progname = NULL; /* Name of this program */
221 static int dflag = FALSE; /* Give debugging information */
222 static int noauth = FALSE; /* If true, don't try to get tokens */
223 static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */
224 static int hosts = FALSE; /* Are we keeping track of hosts? */
225 static int noprdb = FALSE; /* Skip resolving name to id? */
226 static int linked = FALSE; /* try for both AFS nodes */
227 static int afssetpag = FALSE; /* setpag for AFS */
228 static int force = FALSE; /* Bash identical tokens? */
229 static int do524 = FALSE; /* Should we do 524 instead of rxkad2b? */
230 static linked_list zsublist; /* List of zephyr subscriptions */
231 static linked_list hostlist; /* List of host addresses */
232 static linked_list authedcells; /* List of cells already logged to */
234 /* ANL - CMU lifetime convert routine */
235 /* for K5.4.1 don't use this for now. Need to see if it is needed */
236 /* maybe needed in the krb524d module as well */
237 /* extern unsigned long krb_life_to_time(); */
239 static char *copy_cellinfo(cellinfo_t *cellinfo)
241 cellinfo_t *new_cellinfo;
243 if ((new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t))))
244 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
246 return ((char *)new_cellinfo);
250 static char *copy_string(char *string)
254 if ((new_string = (char *)calloc(strlen(string) + 1, sizeof(char))))
255 (void) strcpy(new_string, string);
261 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig, char *local_cell, char *linkedcell)
263 int status = AKLOG_SUCCESS;
264 struct afsconf_dir *configdir;
266 memset(local_cell, 0, sizeof(local_cell));
267 memset((char *)cellconfig, 0, sizeof(*cellconfig));
271 if (!(configdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) {
273 "%s: can't get afs configuration (afsconf_Open(%s))\n",
274 progname, AFSDIR_CLIENT_ETC_DIRPATH);
278 if (afsconf_GetLocalCell(configdir, local_cell, MAXCELLCHARS)) {
279 fprintf(stderr, "%s: can't determine local cell.\n", progname);
283 if ((cell == NULL) || (cell[0] == 0))
286 linkedcell[0] = '\0';
287 if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) {
288 fprintf(stderr, "%s: Can't get information about cell %s.\n",
292 if (cellconfig->linkedCell)
293 strncpy(linkedcell,cellconfig->linkedCell,MAXCELLCHARS);
295 (void) afsconf_Close(configdir);
299 * We'll try to mimic the GetCellInfo call here and fill in as much
300 * of the afsconf_cell structure as we can.
302 if (cm_GetRootCellName(local_cell)) {
303 fprintf(stderr, "%s: can't get local cellname\n", progname);
307 if ((cell == NULL) || (cell[0] == 0))
310 strcpy(cellconfig->name, cell);
312 /* No way of figuring this out as far as I can tell */
313 linkedcell[0] = '\0';
315 /* Initialize server info */
316 cellconfig->numServers = 0;
317 cellconfig->hostName[0][0] = "\0";
320 * Get servers of cell. cm_SearchCellFile_CallBack() gets call with
323 status = (int) cm_SearchCellFile(cell, NULL, &cm_SearchCellFile_CallBack,
324 cellconfig /* rock */);
331 fprintf(stderr, "%s: GetWindowsDirectory() failed.\n", progname);
335 fprintf(stderr, "%s: Couldn't open afsdcells.ini for reading\n",
340 fprintf(stderr, "%s: Couldn't find any servers for cell %s\n",
345 fprintf(stderr, "%s: Badly formatted line in afsdcells.ini (does not begin with a \">\" or contain \"#\"\n",
350 fprintf(stderr, "%s cm_SearchCellFile returned unknown error %d\n",
358 status = AKLOG_SUCCESS;
369 * Callback function for cm_SearchCellFile() in get_cellconfig() above.
370 * This function gets called once for each server that is found for the cell.
373 cm_SearchCellFile_CallBack(void *rock /* cellconfig */,
374 struct sockaddr_in *addr, /* Not used */
377 struct afsconf_cell *cellconfig = rock;
381 * Save server name and increment count of servers
383 strcpy(cellconfig->hostName[cellconfig->numServers++], server);
393 * Log to a cell. If the cell has already been logged to, return without
394 * doing anything. Otherwise, log to it and mark that it has been logged
397 static int auth_to_cell(krb5_context context, char *cell, char *realm)
399 int status = AKLOG_SUCCESS;
400 char username[BUFSIZ]; /* To hold client username structure */
401 afs_int32 viceId; /* AFS uid of user */
403 char name[ANAME_SZ]; /* Name of afs key */
404 char primary_instance[INST_SZ]; /* Instance of afs key */
405 char secondary_instance[INST_SZ]; /* Backup instance to try */
406 int try_secondary = 0; /* Flag to indicate if we try second */
407 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
408 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
409 char local_cell[MAXCELLCHARS+1];
410 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
411 static char lastcell[MAXCELLCHARS+1] = { 0 };
413 static char confname[512] = { 0 };
415 krb5_creds *v5cred = NULL;
416 struct ktc_principal aserver;
417 struct ktc_principal aclient;
418 struct ktc_token atoken, btoken;
420 #ifdef ALLOW_REGISTER
422 #endif /* ALLOW_REGISTER */
424 memset(name, 0, sizeof(name));
425 memset(primary_instance, 0, sizeof(primary_instance));
426 memset(secondary_instance, 0, sizeof(secondary_instance));
427 memset(realm_of_user, 0, sizeof(realm_of_user));
428 memset(realm_of_cell, 0, sizeof(realm_of_cell));
431 if (confname[0] == '\0') {
432 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
433 confname[sizeof(confname) - 2] = '\0';
437 /* NULL or empty cell returns information on local cell */
438 if ((status = get_cellconfig(cell, &ak_cellconfig,
439 local_cell, linkedcell)))
442 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
443 cell_to_use[MAXCELLCHARS] = 0;
445 if (ll_string(&authedcells, ll_s_check, cell_to_use)) {
447 printf("Already authenticated to %s (or tried to)\n",
450 return(AKLOG_SUCCESS);
454 * Record that we have attempted to log to this cell. We do this
455 * before we try rather than after so that we will not try
456 * and fail repeatedly for one cell.
458 (void)ll_string(&authedcells, ll_s_add, cell_to_use);
461 * Record this cell in the list of zephyr subscriptions. We may
462 * want zephyr subscriptions even if authentication fails.
463 * If this is done after we attempt to get tokens, aklog -zsubs
464 * can return something different depending on whether or not we
465 * are in -noauth mode.
467 if (ll_string(&zsublist, ll_s_add, cell_to_use) == LL_FAILURE) {
469 "%s: failure adding cell %s to zephyr subscriptions list.\n",
470 progname, cell_to_use);
473 if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) {
475 "%s: failure adding cell %s to zephyr subscriptions list.\n",
476 progname, local_cell);
482 printf("Authenticating to cell %s (server %s).\n",
483 cell_to_use, ak_cellconfig.hostName[0]);
487 * Find out which realm we're supposed to authenticate to. If one
488 * is not included, use the kerberos realm found in the credentials
492 if (realm && realm[0]) {
493 strcpy(realm_of_cell, realm);
495 printf("We were told to authenticate to realm %s.\n", realm);
499 char *realm = afs_realm_of_cell(context, &ak_cellconfig);
503 "%s: Couldn't figure out realm for cell %s.\n",
504 progname, cell_to_use);
508 strcpy(realm_of_cell, realm);
511 printf("We've deduced that we need to authenticate to"
512 " realm %s.\n", realm_of_cell);
516 /* We use the afs.<cellname> convention here...
518 * Doug Engert's original code had principals of the form:
522 * in the KDC, so the name wouldn't conflict with DFS. Since we're
523 * not using DFS, I changed it just to look for the following
529 * Because people are transitioning from afs@realm to afs/cell,
530 * we configure things so that if the first one isn't found, we
531 * try the second one. You can select which one you prefer with
532 * a configure option.
535 strcpy(name, AFSKEY);
537 if (AFS_TRY_FULL_PRINC || strcasecmp(cell_to_use, realm_of_cell) != 0) {
538 strncpy(primary_instance, cell_to_use, sizeof(primary_instance));
539 primary_instance[sizeof(primary_instance)-1] = '\0';
540 if (strcasecmp(cell_to_use, realm_of_cell) == 0) {
542 secondary_instance[0] = '\0';
545 primary_instance[0] = '\0';
547 strncpy(secondary_instance, cell_to_use,
548 sizeof(secondary_instance));
549 secondary_instance[sizeof(secondary_instance)-1] = '\0';
553 * Extract the session key from the ticket file and hand-frob an
554 * afs style authenticator.
558 * Try to obtain AFS tickets. Because there are two valid service
559 * names, we will try both, but trying the more specific first.
561 * afs/<cell>@<realm> i.e. allow for single name with "."
566 printf("Getting tickets: %s/%s@%s\n", name,
567 primary_instance, realm_of_cell);
570 status = get_credv5(context, name, primary_instance, realm_of_cell,
573 if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
576 printf("Principal not found, trying alternate "
577 "service name: %s/%s@%s\n", name,
578 secondary_instance, realm_of_cell);
580 status = get_credv5(context, name, secondary_instance,
581 realm_of_cell, &v5cred);
587 printf("Kerberos error code returned by get_cred: %d\n",
590 fprintf(stderr, "%s: Couldn't get %s AFS tickets:\n",
591 progname, cell_to_use);
592 com_err(progname, status, "while getting AFS tickets");
593 return(AKLOG_KERBEROS);
596 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
597 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
598 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
601 * The default is to use rxkad2b, which means we put in a full
602 * V5 ticket. If the user specifies -524, we talk to the
603 * 524 ticket converter.
611 printf("Using Kerberos V5 ticket natively\n");
613 len = min(get_princ_len(context, v5cred->client, 0),
614 second_comp(context, v5cred->client) ?
615 MAXKTCNAMELEN - 2 : MAXKTCNAMELEN - 1);
616 strncpy(username, get_princ_str(context, v5cred->client, 0), len);
617 username[len] = '\0';
619 if (second_comp(context, v5cred->client)) {
620 strcat(username, ".");
621 p = username + strlen(username);
622 len = min(get_princ_len(context, v5cred->client, 1),
623 MAXKTCNAMELEN - strlen(username) - 1);
624 strncpy(p, get_princ_str(context, v5cred->client, 1), len);
628 memset(&atoken, 0, sizeof(atoken));
629 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
630 atoken.startTime = v5cred->times.starttime;;
631 atoken.endTime = v5cred->times.endtime;
632 memcpy(&atoken.sessionKey, get_cred_keydata(v5cred),
633 get_cred_keylen(v5cred));
634 atoken.ticketLen = v5cred->ticket.length;
635 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
640 printf("Using Kerberos 524 translator service\n");
642 status = krb5_524_convert_creds(context, v5cred, &cred);
645 com_err(progname, status, "while converting tickets "
646 "to Kerberos V4 format");
647 return(AKLOG_KERBEROS);
650 strcpy (username, cred.pname);
652 strcat (username, ".");
653 strcat (username, cred.pinst);
656 atoken.kvno = cred.kvno;
657 atoken.startTime = cred.issue_date;
659 * It seems silly to go through a bunch of contortions to
660 * extract the expiration time, when the v5 credentials already
661 * has the exact time! Let's use that instead.
663 * Note that this isn't a security hole, as the expiration time
664 * is also contained in the encrypted token
666 atoken.endTime = v5cred->times.endtime;
667 memcpy(&atoken.sessionKey, cred.session, 8);
668 atoken.ticketLen = cred.ticket_st.length;
669 memcpy(atoken.ticket, cred.ticket_st.dat, atoken.ticketLen);
673 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
674 atoken.kvno == btoken.kvno &&
675 atoken.ticketLen == btoken.ticketLen &&
676 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
677 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen)) {
680 printf("Identical tokens already exist; skipping.\n");
693 printf("Not resolving name %s to id (-noprdb set)\n",
699 if ((status = get_user_realm(context, realm_of_user))) {
700 fprintf(stderr, "%s: Couldn't determine realm of user:)",
702 com_err(progname, status, " while getting realm");
703 return(AKLOG_KERBEROS);
705 if (strcmp(realm_of_user, realm_of_cell)) {
706 strcat(username, "@");
707 strcat(username, realm_of_user);
711 printf("About to resolve name %s to id in cell %s.\n",
712 username, aserver.cell);
715 strcpy(lastcell, aserver.cell);
717 if (!pr_Initialize (0, confname, aserver.cell))
718 status = pr_SNameToId (username, &viceId);
722 printf("Error %d\n", status);
724 printf("Id %d\n", (int) viceId);
728 * This is a crock, but it is Transarc's crock, so
729 * we have to play along in order to get the
730 * functionality. The way the afs id is stored is
731 * as a string in the username field of the token.
732 * Contrary to what you may think by looking at
733 * the code for tokens, this hack (AFS ID %d) will
734 * not work if you change %d to something else.
738 * This code is taken from cklog -- it lets people
739 * automatically register with the ptserver in foreign cells
742 #ifdef ALLOW_REGISTER
744 if (viceId != ANONYMOUSID) {
745 #else /* ALLOW_REGISTER */
746 if ((status == 0) && (viceId != ANONYMOUSID))
747 #endif /* ALLOW_REGISTER */
748 sprintf (username, "AFS ID %d", (int) viceId);
749 #ifdef ALLOW_REGISTER
750 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
752 printf("doing first-time registration of %s "
753 "at %s\n", username, cell_to_use);
756 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
757 strcpy(aclient.instance, "");
758 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
759 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, 0))) {
760 fprintf(stderr, "%s: unable to obtain tokens for cell %s "
761 "(status: %d).\n", progname, cell_to_use, status);
762 status = AKLOG_TOKEN;
766 * In case you're wondering, we don't need to change the
767 * filename here because we're still connecting to the
768 * same cell -- we're just using a different authentication
772 if ((status = pr_Initialize(1L, confname, aserver.cell))) {
773 printf("Error %d\n", status);
776 if ((status = pr_CreateUser(username, &id))) {
777 fprintf(stderr, "%s: %s so unable to create remote PTS "
778 "user %s in cell %s (status: %d).\n", progname,
779 error_message(status), username, cell_to_use,
782 printf("created cross-cell entry for %s at %s\n",
783 username, cell_to_use);
784 sprintf(username, "AFS ID %d", (int) id);
788 #endif /* ALLOW_REGISTER */
791 #endif /* !WINDOWS */
794 fprintf(stdout, "Set username to %s\n", username);
797 /* Reset the "aclient" structure before we call ktc_SetToken.
798 * This structure was first set by the ktc_GetToken call when
799 * we were comparing whether identical tokens already existed.
801 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
802 strcpy(aclient.instance, "");
803 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
806 printf("Setting tokens. %s / %s @ %s \n",
807 aclient.name, aclient.instance, aclient.cell );
809 /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before
810 * this routine, it will not add the token. It is not clear what
811 * is going on here! So we will do the following operation
813 write(2,"",0); /* dummy write */
815 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
817 "%s: unable to obtain tokens for cell %s (status: %d).\n",
818 progname, cell_to_use, status);
819 status = AKLOG_TOKEN;
822 /* Note switched 2nd and 3rd args */
823 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
826 fprintf(stderr, "%s: Bad ticket length", progname);
829 fprintf(stderr, "%s: Unknown error contacting AFS service",
833 fprintf(stderr, "%s: Cell name (%s) not recognized by AFS service",
834 progname, realm_of_cell);
837 fprintf(stderr, "%s: AFS service is unavailable", progname);
840 fprintf(stderr, "%s: Undocumented error (%d) contacting AFS service", progname, status);
843 status = AKLOG_TOKEN;
845 #endif /* !WINDOWS */
849 printf("Noauth mode; not authenticating.\n");
855 #ifndef WINDOWS /* struct ViceIoctl missing */
857 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
860 char V ='V'; /* AFS has problem on Sun with pioctl */
862 char our_file[MAXPATHLEN + 1];
864 char *last_component;
865 struct ViceIoctl vio;
866 char cellname[BUFSIZ];
868 memset(our_file, 0, sizeof(our_file));
869 strcpy(our_file, file);
871 if ((last_component = strrchr(our_file, DIR))) {
872 *last_component++ = 0;
873 parent_dir = our_file;
876 last_component = our_file;
880 memset(cellname, 0, sizeof(cellname));
882 vio.in = last_component;
883 vio.in_size = strlen(last_component)+1;
885 vio.out = mountpoint;
887 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) {
888 if (strchr(mountpoint, VOLMARKER) == NULL) {
890 vio.in_size = strlen(file) + 1;
891 vio.out_size = sizeof(cellname);
894 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) {
895 strcat(cellname, VOLMARKERSTRING);
896 strcat(cellname, mountpoint + 1);
897 memset(mountpoint + 1, 0, size - 1);
898 strcpy(mountpoint + 1, cellname);
908 * This routine each time it is called returns the next directory
909 * down a pathname. It resolves all symbolic links. The first time
910 * it is called, it should be called with the name of the path
911 * to be descended. After that, it should be called with the arguemnt
914 static char *next_path(char *origpath)
916 static char path[MAXPATHLEN + 1];
917 static char pathtocheck[MAXPATHLEN + 1];
919 int link = FALSE; /* Is this a symbolic link? */
920 char linkbuf[MAXPATHLEN + 1];
921 char tmpbuf[MAXPATHLEN + 1];
923 static char *last_comp; /* last component of directory name */
924 static char *elast_comp; /* End of last component */
928 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
930 /* If we are given something for origpath, we are initializing only. */
932 memset(path, 0, sizeof(path));
933 memset(pathtocheck, 0, sizeof(pathtocheck));
934 strcpy(path, origpath);
940 /* We were not given origpath; find then next path to check */
942 /* If we've gotten all the way through already, return NULL */
943 if (last_comp == NULL)
947 while (*last_comp == DIR)
948 strncat(pathtocheck, last_comp++, 1);
949 len = (elast_comp = strchr(last_comp, DIR))
950 ? elast_comp - last_comp : strlen(last_comp);
951 strncat(pathtocheck, last_comp, len);
952 memset(linkbuf, 0, sizeof(linkbuf));
953 if (link = (readlink(pathtocheck, linkbuf,
954 sizeof(linkbuf)) > 0)) {
955 if (++symlinkcount > MAXSYMLINKS) {
956 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
959 memset(tmpbuf, 0, sizeof(tmpbuf));
961 strcpy(tmpbuf, elast_comp);
962 if (linkbuf[0] == DIR) {
964 * If this is a symbolic link to an absolute path,
965 * replace what we have by the absolute path.
967 memset(path, 0, strlen(path));
968 memcpy(path, linkbuf, sizeof(linkbuf));
969 strcat(path, tmpbuf);
972 memset(pathtocheck, 0, sizeof(pathtocheck));
976 * If this is a symbolic link to a relative path,
977 * replace only the last component with the link name.
979 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
980 strcat(path, tmpbuf);
982 if ((t = strrchr(pathtocheck, DIR))) {
984 memset(t, 0, strlen(t));
987 memset(pathtocheck, 0, sizeof(pathtocheck));
991 last_comp = elast_comp;
1001 /*****************************************/
1005 char V = 'V'; /* AFS has problem on SunOS */
1007 struct ViceIoctl vio;
1008 char outbuf[BUFSIZ];
1012 memset(outbuf, 0, sizeof(outbuf));
1014 vio.out_size = sizeof(outbuf);
1015 vio.in_size = sizeof(ind);
1020 fd = open("dee.tok",O_WRONLY);
1021 while(!pioctl(0,VIOCGETTOK,&vio,0)) {
1022 write(fd,&outbuf,sizeof(outbuf));
1027 /*****************************************/
1030 #ifndef WINDOWS /* struct ViceIoctl missing */
1032 static void add_hosts(char *file)
1035 char V = 'V'; /* AFS has problem on SunOS */
1037 struct ViceIoctl vio;
1038 char outbuf[BUFSIZ];
1044 memset(outbuf, 0, sizeof(outbuf));
1046 vio.out_size = sizeof(outbuf);
1051 printf("Getting list of hosts for %s\n", file);
1053 /* Don't worry about errors. */
1054 if (!pioctl(file, VIOCWHEREIS, &vio, 1)) {
1055 phosts = (long *) outbuf;
1058 * Lists hosts that we care about. If ALLHOSTS is defined,
1059 * then all hosts that you ever may possible go through are
1060 * included in this list. If not, then only hosts that are
1061 * the only ones appear. That is, if a volume you must use
1062 * is replaced on only one server, that server is included.
1063 * If it is replicated on many servers, then none are included.
1064 * This is not perfect, but the result is that people don't
1065 * get subscribed to a lot of instances of FILSRV that they
1066 * probably won't need which reduces the instances of
1067 * people getting messages that don't apply to them.
1070 if (phosts[1] != '\0')
1073 for (i = 0; phosts[i]; i++) {
1075 in.s_addr = phosts[i];
1077 printf("Got host %s\n", inet_ntoa(in));
1079 ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in));
1081 if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) {
1083 printf("Got host %s\n", hp->h_name);
1085 ll_string(&zsublist, ll_s_add, hp->h_name);
1091 #endif /* WINDOWS */
1093 #ifndef WINDOWS /* next_path(), get_afs_mountpoint() */
1096 * This routine descends through a path to a directory, logging to
1097 * every cell it encounters along the way.
1099 static int auth_to_path(krb5_context context, char *path)
1101 int status = AKLOG_SUCCESS;
1102 int auth_to_cell_status = AKLOG_SUCCESS;
1105 char pathtocheck[MAXPATHLEN + 1];
1106 char mountpoint[MAXPATHLEN + 1];
1115 strcpy(pathtocheck, path);
1117 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL) {
1118 fprintf(stderr, "Unable to find current working directory:\n");
1119 fprintf(stderr, "%s\n", pathtocheck);
1120 fprintf(stderr, "Try an absolute pathname.\n");
1121 exit(AKLOG_BADPATH);
1124 strcat(pathtocheck, DIRSTRING);
1125 strcat(pathtocheck, path);
1128 next_path(pathtocheck);
1130 /* Go on to the next level down the path */
1131 while ((nextpath = next_path(NULL))) {
1132 strcpy(pathtocheck, nextpath);
1134 printf("Checking directory %s\n", pathtocheck);
1137 * If this is an afs mountpoint, determine what cell from
1138 * the mountpoint name which is of the form
1139 * #cellname:volumename or %cellname:volumename.
1141 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) {
1142 /* skip over the '#' or '%' */
1143 cell = mountpoint + 1;
1144 /* Add this (cell:volumename) to the list of zsubs */
1146 ll_string(&zsublist, ll_s_add, cell);
1148 add_hosts(pathtocheck);
1149 if ((endofcell = strchr(mountpoint, VOLMARKER))) {
1151 if ((auth_to_cell_status = auth_to_cell(context, cell, NULL))) {
1152 if (status == AKLOG_SUCCESS)
1153 status = auth_to_cell_status;
1154 else if (status != auth_to_cell_status)
1155 status = AKLOG_SOMETHINGSWRONG;
1160 if (isdir(pathtocheck, &isdirectory) < 0) {
1162 * If we've logged and still can't stat, there's
1165 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1166 pathtocheck, strerror(errno));
1167 return(AKLOG_BADPATH);
1169 else if (! isdirectory) {
1170 /* Allow only directories */
1171 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1173 return(AKLOG_BADPATH);
1182 #endif /* WINDOWS */
1185 /* Print usage message and exit */
1186 static void usage(void)
1188 fprintf(stderr, "\nUsage: %s %s%s%s\n", progname,
1189 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1190 "[[-p | -path] pathname]\n",
1191 " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
1192 " [-linked] [-524]\n");
1193 fprintf(stderr, " -d gives debugging information.\n");
1194 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1195 fprintf(stderr, " pathname is the name of a directory to which ");
1196 fprintf(stderr, "you wish to authenticate.\n");
1197 fprintf(stderr, " -zsubs gives zephyr subscription information.\n");
1198 fprintf(stderr, " -hosts gives host address information.\n");
1199 fprintf(stderr, " -noauth does not attempt to get tokens.\n");
1200 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1201 fprintf(stderr, " -force means replace identical tickets. \n");
1202 fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
1203 fprintf(stderr, " -setpag set the AFS process authentication group.\n");
1204 fprintf(stderr, " -524 means use the 524 converter instead of V5 directly\n");
1205 fprintf(stderr, " No commandline arguments means ");
1206 fprintf(stderr, "authenticate to the local cell.\n");
1207 fprintf(stderr, "\n");
1211 void aklog(int argc, char *argv[])
1213 krb5_context context;
1214 int status = AKLOG_SUCCESS;
1216 int somethingswrong = FALSE;
1218 cellinfo_t cellinfo;
1220 extern char *progname; /* Name of this program */
1222 extern int dflag; /* Debug mode */
1224 int cmode = FALSE; /* Cellname mode */
1225 int pmode = FALSE; /* Path name mode */
1227 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1228 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1229 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1231 linked_list cells; /* List of cells to log to */
1232 linked_list paths; /* List of paths to log to */
1235 memset(&cellinfo, 0, sizeof(cellinfo));
1237 memset(realm, 0, sizeof(realm));
1238 memset(cell, 0, sizeof(cell));
1239 memset(path, 0, sizeof(path));
1247 /* Store the program name here for error messages */
1248 if ((progname = strrchr(argv[0], DIR)))
1253 krb5_init_context(&context);
1255 initialize_ktc_error_table ();
1258 /* Initialize list of cells to which we have authenticated */
1259 (void)ll_init(&authedcells);
1261 /* Parse commandline arguments and make list of what to do. */
1262 for (i = 1; i < argc; i++) {
1263 if (strcmp(argv[i], "-d") == 0)
1265 else if (strcmp(argv[i], "-noauth") == 0)
1267 else if (strcmp(argv[i], "-zsubs") == 0)
1269 else if (strcmp(argv[i], "-hosts") == 0)
1271 else if (strcmp(argv[i], "-noprdb") == 0)
1273 else if (strcmp(argv[i], "-linked") == 0)
1275 else if (strcmp(argv[i], "-force") == 0)
1277 else if (strcmp(argv[i], "-524") == 0)
1279 else if (strcmp(argv[i], "-setpag") == 0)
1281 else if (((strcmp(argv[i], "-cell") == 0) ||
1282 (strcmp(argv[i], "-c") == 0)) && !pmode)
1285 strcpy(cell, argv[i]);
1289 else if (((strcmp(argv[i], "-path") == 0) ||
1290 (strcmp(argv[i], "-p") == 0)) && !cmode)
1294 strcpy(path, argv[i]);
1300 fprintf(stderr, "%s: path mode not supported.\n", progname);
1303 #endif /* WINDOWS */
1305 else if (argv[i][0] == '-')
1307 else if (!pmode && !cmode) {
1308 if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) ||
1309 (strcmp(argv[i], "..") == 0)) {
1312 strcpy(path, argv[i]);
1314 fprintf(stderr, "%s: path mode not supported.\n", progname);
1316 #endif /* WINDOWS */
1320 strcpy(cell, argv[i]);
1327 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) {
1330 strcpy(realm, argv[i]);
1334 /* Add this cell to list of cells */
1335 strcpy(cellinfo.cell, cell);
1336 strcpy(cellinfo.realm, realm);
1337 if ((cur_node = ll_add_node(&cells, ll_tail))) {
1339 if ((new_cellinfo = copy_cellinfo(&cellinfo)))
1340 ll_add_data(cur_node, new_cellinfo);
1343 "%s: failure copying cellinfo.\n", progname);
1348 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1352 memset(&cellinfo, 0, sizeof(cellinfo));
1354 memset(cell, 0, sizeof(cell));
1355 memset(realm, 0, sizeof(realm));
1359 /* Add this path to list of paths */
1360 if ((cur_node = ll_add_node(&paths, ll_tail))) {
1362 if ((new_path = copy_string(path)))
1363 ll_add_data(cur_node, new_path);
1365 fprintf(stderr, "%s: failure copying path name.\n",
1371 fprintf(stderr, "%s: failure adding path to paths list.\n",
1376 memset(path, 0, sizeof(path));
1378 #endif /* WINDOWS */
1382 * The code that _used_ to be here called setpag(). When you think
1383 * about this, doing this makes no sense! setpag() allocates a PAG
1384 * only for the current process, so the token installed would have
1385 * not be usable in the parent! Since ktc_SetToken() now takes a
1386 * 4th argument to control whether or not we're going to allocate
1387 * a PAG (and since when you do it _that_ way, it modifies the cred
1388 * structure of your parent)), why don't we use that instead?
1399 printf("setpag %d\n",status);
1400 j = getgroups(gidsetlen,gidset);
1401 printf("Groups(%d):",j);
1402 for (i = 0; i<j; i++) {
1403 printf("%d",gidset[i]);
1404 if((i+1)<j) printf(",");
1410 /* If nothing was given, log to the local cell. */
1411 if ((cells.nelements + paths.nelements) == 0) {
1414 status = auth_to_cell(context, NULL, NULL);
1416 /* If this cell is linked to a DCE cell, and user
1417 * requested -linked, get tokens for both
1418 * This is very usefull when the AFS cell is linked to a DFS
1419 * cell and this system does not also have DFS.
1422 if (!status && linked && linkedcell[0]) {
1423 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1425 printf("Linked cell: %s\n", linkedcell);
1427 status = auth_to_cell(context, linkedcell2, NULL);
1432 * Local hack - if the person has a file in their home
1433 * directory called ".xlog", read that for a list of
1434 * extra cells to authenticate to
1437 if ((pwd = getpwuid(getuid())) != NULL) {
1440 char fcell[100], xlog_path[512];
1442 strcpy(xlog_path, pwd->pw_dir);
1443 strcat(xlog_path, "/.xlog");
1445 if ((stat(xlog_path, &sbuf) == 0) &&
1446 ((f = fopen(xlog_path, "r")) != NULL)) {
1449 printf("Reading %s for cells to "
1450 "authenticate to.\n", xlog_path);
1453 while (fgets(fcell, 100, f) != NULL) {
1456 fcell[strlen(fcell) - 1] = '\0';
1459 printf("Found cell %s in %s.\n",
1463 auth_status = auth_to_cell(context, fcell, NULL);
1464 if (status == AKLOG_SUCCESS)
1465 status = auth_status;
1467 status = AKLOG_SOMETHINGSWRONG;
1471 #endif /* WINDOWS */
1474 /* Log to all cells in the cells list first */
1475 for (cur_node = cells.first; cur_node; cur_node = cur_node->next) {
1476 memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo));
1477 if ((status = auth_to_cell(context, cellinfo.cell, cellinfo.realm)))
1480 if (linked && linkedcell[0]) {
1481 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1483 printf("Linked cell: %s\n",
1486 if ((status = auth_to_cell(context,linkedcell2,
1494 /* Then, log to all paths in the paths list */
1495 for (cur_node = paths.first; cur_node; cur_node = cur_node->next) {
1496 if ((status = auth_to_path(context, cur_node->data)))
1499 #endif /* WINDOWS */
1502 * If only one thing was logged to, we'll return the status
1503 * of the single call. Otherwise, we'll return a generic
1504 * something failed status.
1506 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1507 status = AKLOG_SOMETHINGSWRONG;
1510 /* If we are keeping track of zephyr subscriptions, print them. */
1512 for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) {
1513 printf("zsub: %s\n", cur_node->data);
1516 /* If we are keeping track of host information, print it. */
1518 for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) {
1519 printf("host: %s\n", cur_node->data);
1525 #ifndef HAVE_ADD_TO_ERROR_TABLE
1527 #define error_table error_table_compat
1528 #include <afs/error_table.h>
1531 #ifndef HAVE_ADD_ERROR_TABLE
1532 void add_error_table (const struct error_table *);
1533 #endif /* !HAVE_ADD_ERROR_TABLE */
1536 add_to_error_table(struct et_list *new_table)
1538 add_error_table((struct error_table *) new_table->table);
1540 #endif /* HAVE_ADD_TO_ERROR_TABLE */
1542 static int isdir(char *path, unsigned char *val)
1544 struct stat statbuf;
1546 if (lstat(path, &statbuf) < 0)
1549 if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
1557 static krb5_error_code get_credv5(krb5_context context,
1558 char *name, char *inst, char *realm,
1563 static krb5_principal client_principal = 0;
1565 memset((char *)&increds, 0, sizeof(increds));
1566 /* ANL - instance may be ptr to a null string. Pass null then */
1567 if ((r = krb5_build_principal(context, &increds.server,
1568 strlen(realm), realm,
1570 (inst && strlen(inst)) ? inst : (void *) NULL,
1575 if (!_krb425_ccache) {
1576 r = krb5_cc_default(context, &_krb425_ccache);
1580 if (!client_principal) {
1581 r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1586 increds.client = client_principal;
1587 increds.times.endtime = 0;
1588 /* Ask for DES since that is what V4 understands */
1589 get_creds_enctype((&increds)) = ENCTYPE_DES_CBC_CRC;
1591 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
1597 static int get_user_realm(krb5_context context, char *realm)
1599 static krb5_principal client_principal = 0;
1602 if (!_krb425_ccache)
1603 krb5_cc_default(context, &_krb425_ccache);
1604 if (!client_principal)
1605 krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1607 i = realm_len(context, client_principal);
1608 if (i > REALM_SZ-1) i = REALM_SZ-1;
1609 strncpy(realm,realm_data(context, client_principal), i);