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 */
16 #include <sys/types.h>
32 #include <sys/param.h>
33 #include <sys/errno.h>
35 #include <sys/socket.h>
36 #include <netinet/in.h>
37 #include <arpa/inet.h>
41 /* on AIX AFS has an unresolved reference to osi_audit. We will define
42 * it here as extern. It also trys to call the ntohl and htonl routines
43 * as routines rather then macros. We need a real routine here.
44 * We do this before the ntohl and htonl macros are defined in net/in.h
51 u_long htonl(u_long x)
54 u_long ntohl(u_long x)
58 #include <netinet/in.h>
59 /* #include <krb.h> */
69 #include <afs/dirpath.h>
73 #include <afs/com_err.h>
75 #include <afs/param.h>
77 #include <sys/ioccom.h>
80 #include <afs/cellconfig.h>
82 #include <afs/venus.h>
83 #include <afs/ptserver.h>
84 #include <afs/dirpath.h>
88 #include "linked_list.h"
93 #ifndef AFS_TRY_FULL_PRINC
94 #define AFS_TRY_FULL_PRINC 1
95 #endif /* AFS_TRY_FULL_PRINC */
97 #define AKLOG_SUCCESS 0
99 #define AKLOG_SOMETHINGSWRONG 2
101 #define AKLOG_KERBEROS 4
102 #define AKLOG_TOKEN 5
103 #define AKLOG_BADPATH 6
119 /* RedHat 4.x doesn't seem to define this */
120 #define MAXSYMLINKS 5
123 #define DIR '/' /* Character that divides directories */
124 #define DIRSTRING "/" /* String form of above */
125 #define VOLMARKER ':' /* Character separating cellname from mntpt */
126 #define VOLMARKERSTRING ":" /* String form of above */
130 char realm[REALM_SZ];
133 struct afsconf_cell ak_cellconfig; /* General information about the cell */
134 static char linkedcell[MAXCELLCHARS+1];
135 static char linkedcell2[MAXCELLCHARS+1];
136 static krb5_ccache _krb425_ccache = NULL;
141 extern long cm_GetRootCellName();
142 extern long cm_SearchCellFile();
144 static long cm_SearchCellFile_CallBack();
149 * Why doesn't AFS provide these prototypes?
152 extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32);
158 extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *);
159 static int isdir(char *, unsigned char *);
160 static krb5_error_code get_credv5(krb5_context context, char *, char *,
161 char *, krb5_creds **);
162 static int get_user_realm(krb5_context, char *);
164 #if defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
166 #define get_princ_str(c, p, n) krb5_princ_component(c, p, n)->data
167 #define get_princ_len(c, p, n) krb5_princ_component(c, p, n)->length
168 #define second_comp(c, p) (krb5_princ_size(c, p) > 1)
169 #define realm_data(c, p) krb5_princ_realm(c, p)->data
170 #define realm_len(c, p) krb5_princ_realm(c, p)->length
172 #elif defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING)
174 #define get_princ_str(c, p, n) krb5_principal_get_comp_string(c, p, n)
175 #define get_princ_len(c, p, n) strlen(krb5_principal_get_comp_string(c, p, n))
176 #define second_comp(c, p) (krb5_principal_get_comp_string(c, p, 1) != NULL)
177 #define realm_data(c, p) krb5_realm_data(krb5_principal_get_realm(c, p))
178 #define realm_len(c, p) krb5_realm_length(krb5_principal_get_realm(c, p))
181 #error "Must have either krb5_princ_size or krb5_principal_get_comp_string"
184 #if defined(HAVE_KRB5_CREDS_KEYBLOCK)
186 #define get_cred_keydata(c) c->keyblock.contents
187 #define get_cred_keylen(c) c->keyblock.length
188 #define get_creds_enctype(c) c->keyblock.enctype
190 #elif defined(HAVE_KRB5_CREDS_SESSION)
192 #define get_cred_keydata(c) c->session.keyvalue.data
193 #define get_cred_keylen(c) c->session.keyvalue.length
194 #define get_creds_enctype(c) c->session.keytype
197 #error "Must have either keyblock or session member of krb5_creds"
200 #if !defined(HAVE_KRB5_524_CONVERT_CREDS) && defined(HAVE_KRB524_CONVERT_CREDS_KDC)
201 #define krb5_524_convert_creds krb524_convert_creds_kdc
202 #elif !defined(HAVE_KRB5_524_CONVERT_CREDS) && !defined(HAVE_KRB524_CONVERT_CREDS_KDC)
203 #error "You must have one of krb5_524_convert_creds or krb5_524_convert_creds_kdc available"
209 * Provide a replacement for strerror if we don't have it
212 #ifndef HAVE_STRERROR
213 extern char *sys_errlist[];
214 #define strerror(x) sys_errlist[x]
215 #endif /* HAVE_STRERROR */
217 static char *progname = NULL; /* Name of this program */
218 static int dflag = FALSE; /* Give debugging information */
219 static int noauth = FALSE; /* If true, don't try to get tokens */
220 static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */
221 static int hosts = FALSE; /* Are we keeping track of hosts? */
222 static int noprdb = FALSE; /* Skip resolving name to id? */
223 static int linked = FALSE; /* try for both AFS nodes */
224 static int afssetpag = FALSE; /* setpag for AFS */
225 static int force = FALSE; /* Bash identical tokens? */
226 static int do524 = FALSE; /* Should we do 524 instead of rxkad2b? */
227 static linked_list zsublist; /* List of zephyr subscriptions */
228 static linked_list hostlist; /* List of host addresses */
229 static linked_list authedcells; /* List of cells already logged to */
231 /* ANL - CMU lifetime convert routine */
232 /* for K5.4.1 don't use this for now. Need to see if it is needed */
233 /* maybe needed in the krb524d module as well */
234 /* extern unsigned long krb_life_to_time(); */
236 static char *copy_cellinfo(cellinfo_t *cellinfo)
238 cellinfo_t *new_cellinfo;
240 if ((new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t))))
241 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
243 return ((char *)new_cellinfo);
247 static char *copy_string(char *string)
251 if ((new_string = (char *)calloc(strlen(string) + 1, sizeof(char))))
252 (void) strcpy(new_string, string);
258 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig, char *local_cell, char *linkedcell)
260 int status = AKLOG_SUCCESS;
261 struct afsconf_dir *configdir;
264 memset(local_cell, 0, sizeof(local_cell));
265 memset((char *)cellconfig, 0, sizeof(*cellconfig));
269 if (!(configdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) {
271 "%s: can't get afs configuration (afsconf_Open(%s))\n",
272 progname, AFSDIR_CLIENT_ETC_DIRPATH);
276 if (afsconf_GetLocalCell(configdir, local_cell, MAXCELLCHARS)) {
277 fprintf(stderr, "%s: can't determine local cell.\n", progname);
281 if ((cell == NULL) || (cell[0] == 0))
284 linkedcell[0] = '\0';
285 if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) {
286 fprintf(stderr, "%s: Can't get information about cell %s.\n",
290 if (cellconfig->linkedCell)
291 strncpy(linkedcell,cellconfig->linkedCell,MAXCELLCHARS);
293 (void) afsconf_Close(configdir);
297 * We'll try to mimic the GetCellInfo call here and fill in as much
298 * of the afsconf_cell structure as we can.
300 if (cm_GetRootCellName(local_cell)) {
301 fprintf(stderr, "%s: can't get local cellname\n", progname);
305 if ((cell == NULL) || (cell[0] == 0))
308 strcpy(cellconfig->name, cell);
310 /* No way of figuring this out as far as I can tell */
311 linkedcell[0] = '\0';
313 /* Initialize server info */
314 cellconfig->numServers = 0;
315 cellconfig->hostName[0][0] = "\0";
318 * Get servers of cell. cm_SearchCellFile_CallBack() gets call with
321 status = (int) cm_SearchCellFile(cell, NULL, &cm_SearchCellFile_CallBack,
322 cellconfig /* rock */);
329 fprintf(stderr, "%s: GetWindowsDirectory() failed.\n", progname);
333 fprintf(stderr, "%s: Couldn't open afsdcells.ini for reading\n",
338 fprintf(stderr, "%s: Couldn't find any servers for cell %s\n",
343 fprintf(stderr, "%s: Badly formatted line in afsdcells.ini (does not begin with a \">\" or contain \"#\"\n",
348 fprintf(stderr, "%s cm_SearchCellFile returned unknown error %d\n",
356 status = AKLOG_SUCCESS;
367 * Callback function for cm_SearchCellFile() in get_cellconfig() above.
368 * This function gets called once for each server that is found for the cell.
371 cm_SearchCellFile_CallBack(void *rock /* cellconfig */,
372 struct sockaddr_in *addr, /* Not used */
375 struct afsconf_cell *cellconfig = rock;
379 * Save server name and increment count of servers
381 strcpy(cellconfig->hostName[cellconfig->numServers++], server);
391 * Log to a cell. If the cell has already been logged to, return without
392 * doing anything. Otherwise, log to it and mark that it has been logged
396 static int auth_to_cell(krb5_context context, char *cell, char *realm)
398 static int auth_to_cell(context, cell, realm)
400 krb5_context context;
403 #endif /* __STDC__ */
405 int status = AKLOG_SUCCESS;
406 char username[BUFSIZ]; /* To hold client username structure */
407 long viceId; /* AFS uid of user */
409 char name[ANAME_SZ]; /* Name of afs key */
410 char primary_instance[INST_SZ]; /* Instance of afs key */
411 char secondary_instance[INST_SZ]; /* Backup instance to try */
412 int try_secondary = 0; /* Flag to indicate if we try second */
413 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
414 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
415 char local_cell[MAXCELLCHARS+1];
416 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
417 static char lastcell[MAXCELLCHARS+1] = { 0 };
419 static char confname[512] = { 0 };
421 krb5_creds *v5cred = NULL;
422 struct ktc_principal aserver;
423 struct ktc_principal aclient;
424 struct ktc_token atoken, btoken;
426 #ifdef ALLOW_REGISTER
428 #endif /* ALLOW_REGISTER */
430 memset(name, 0, sizeof(name));
431 memset(primary_instance, 0, sizeof(primary_instance));
432 memset(secondary_instance, 0, sizeof(secondary_instance));
433 memset(realm_of_user, 0, sizeof(realm_of_user));
434 memset(realm_of_cell, 0, sizeof(realm_of_cell));
437 if (confname[0] == '\0') {
438 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
439 confname[sizeof(confname) - 2] = '\0';
443 /* NULL or empty cell returns information on local cell */
444 if ((status = get_cellconfig(cell, &ak_cellconfig,
445 local_cell, linkedcell)))
448 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
449 cell_to_use[MAXCELLCHARS] = 0;
451 if (ll_string(&authedcells, ll_s_check, cell_to_use)) {
453 printf("Already authenticated to %s (or tried to)\n",
456 return(AKLOG_SUCCESS);
460 * Record that we have attempted to log to this cell. We do this
461 * before we try rather than after so that we will not try
462 * and fail repeatedly for one cell.
464 (void)ll_string(&authedcells, ll_s_add, cell_to_use);
467 * Record this cell in the list of zephyr subscriptions. We may
468 * want zephyr subscriptions even if authentication fails.
469 * If this is done after we attempt to get tokens, aklog -zsubs
470 * can return something different depending on whether or not we
471 * are in -noauth mode.
473 if (ll_string(&zsublist, ll_s_add, cell_to_use) == LL_FAILURE) {
475 "%s: failure adding cell %s to zephyr subscriptions list.\n",
476 progname, cell_to_use);
479 if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) {
481 "%s: failure adding cell %s to zephyr subscriptions list.\n",
482 progname, local_cell);
488 printf("Authenticating to cell %s (server %s).\n",
489 cell_to_use, ak_cellconfig.hostName[0]);
493 * Find out which realm we're supposed to authenticate to. If one
494 * is not included, use the kerberos realm found in the credentials
498 if (realm && realm[0]) {
499 strcpy(realm_of_cell, realm);
501 printf("We were told to authenticate to realm %s.\n", realm);
505 char *realm = afs_realm_of_cell(context, &ak_cellconfig);
509 "%s: Couldn't figure out realm for cell %s.\n",
510 progname, cell_to_use);
514 strcpy(realm_of_cell, realm);
517 printf("We've deduced that we need to authenticate to"
518 " realm %s.\n", realm_of_cell);
522 /* We use the afs.<cellname> convention here...
524 * Doug Engert's original code had principals of the form:
528 * in the KDC, so the name wouldn't conflict with DFS. Since we're
529 * not using DFS, I changed it just to look for the following
535 * Because people are transitioning from afs@realm to afs/cell,
536 * we configure things so that if the first one isn't found, we
537 * try the second one. You can select which one you prefer with
538 * a configure option.
541 strcpy(name, AFSKEY);
543 if (AFS_TRY_FULL_PRINC || strcasecmp(cell_to_use, realm_of_cell) != 0) {
544 strncpy(primary_instance, cell_to_use, sizeof(primary_instance));
545 primary_instance[sizeof(primary_instance)-1] = '\0';
546 if (strcasecmp(cell_to_use, realm_of_cell) == 0) {
548 secondary_instance[0] = '\0';
551 primary_instance[0] = '\0';
553 strncpy(secondary_instance, cell_to_use,
554 sizeof(secondary_instance));
555 secondary_instance[sizeof(secondary_instance)-1] = '\0';
559 * Extract the session key from the ticket file and hand-frob an
560 * afs style authenticator.
564 * Try to obtain AFS tickets. Because there are two valid service
565 * names, we will try both, but trying the more specific first.
567 * afs/<cell>@<realm> i.e. allow for single name with "."
572 printf("Getting tickets: %s/%s@%s\n", name,
573 primary_instance, realm_of_cell);
576 status = get_credv5(context, name, primary_instance, realm_of_cell,
579 if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
582 printf("Principal not found, trying alternate "
583 "service name: %s/%s@%s\n", name,
584 secondary_instance, realm_of_cell);
586 status = get_credv5(context, name, secondary_instance,
587 realm_of_cell, &v5cred);
593 printf("Kerberos error code returned by get_cred: %d\n",
596 fprintf(stderr, "%s: Couldn't get %s AFS tickets:\n",
597 progname, cell_to_use);
598 com_err(progname, status, "while getting AFS tickets");
599 return(AKLOG_KERBEROS);
602 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
603 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
604 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
607 * The default is to use rxkad2b, which means we put in a full
608 * V5 ticket. If the user specifies -524, we talk to the
609 * 524 ticket converter.
617 printf("Using Kerberos V5 ticket natively\n");
619 len = min(get_princ_len(context, v5cred->client, 0),
620 second_comp(context, v5cred->client) ?
621 MAXKTCNAMELEN - 2 : MAXKTCNAMELEN - 1);
622 strncpy(username, get_princ_str(context, v5cred->client, 0), len);
623 username[len] = '\0';
625 if (second_comp(context, v5cred->client)) {
626 strcat(username, ".");
627 p = username + strlen(username);
628 len = min(get_princ_len(context, v5cred->client, 1),
629 MAXKTCNAMELEN - strlen(username) - 1);
630 strncpy(p, get_princ_str(context, v5cred->client, 1), len);
634 memset(&atoken, 0, sizeof(atoken));
635 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
636 atoken.startTime = v5cred->times.starttime;;
637 atoken.endTime = v5cred->times.endtime;
638 memcpy(&atoken.sessionKey, get_cred_keydata(v5cred),
639 get_cred_keylen(v5cred));
640 atoken.ticketLen = v5cred->ticket.length;
641 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
646 printf("Using Kerberos 524 translator service\n");
648 status = krb5_524_convert_creds(context, v5cred, &cred);
651 com_err(progname, status, "while converting tickets "
652 "to Kerberos V4 format");
653 return(AKLOG_KERBEROS);
656 strcpy (username, cred.pname);
658 strcat (username, ".");
659 strcat (username, cred.pinst);
662 atoken.kvno = cred.kvno;
663 atoken.startTime = cred.issue_date;
665 * It seems silly to go through a bunch of contortions to
666 * extract the expiration time, when the v5 credentials already
667 * has the exact time! Let's use that instead.
669 * Note that this isn't a security hole, as the expiration time
670 * is also contained in the encrypted token
672 atoken.endTime = v5cred->times.endtime;
673 memcpy(&atoken.sessionKey, cred.session, 8);
674 atoken.ticketLen = cred.ticket_st.length;
675 memcpy(atoken.ticket, cred.ticket_st.dat, atoken.ticketLen);
679 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
680 atoken.kvno == btoken.kvno &&
681 atoken.ticketLen == btoken.ticketLen &&
682 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
683 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen)) {
686 printf("Identical tokens already exist; skipping.\n");
699 printf("Not resolving name %s to id (-noprdb set)\n",
705 if ((status = get_user_realm(context, realm_of_user))) {
706 fprintf(stderr, "%s: Couldn't determine realm of user:)",
708 com_err(progname, status, " while getting realm");
709 return(AKLOG_KERBEROS);
711 if (strcmp(realm_of_user, realm_of_cell)) {
712 strcat(username, "@");
713 strcat(username, realm_of_user);
717 printf("About to resolve name %s to id in cell %s.\n",
718 username, aserver.cell);
721 strcpy(lastcell, aserver.cell);
723 if (!pr_Initialize (0, confname, aserver.cell, 0))
724 status = pr_SNameToId (username, &viceId);
728 printf("Error %d\n", status);
730 printf("Id %d\n", (int) viceId);
734 * This is a crock, but it is Transarc's crock, so
735 * we have to play along in order to get the
736 * functionality. The way the afs id is stored is
737 * as a string in the username field of the token.
738 * Contrary to what you may think by looking at
739 * the code for tokens, this hack (AFS ID %d) will
740 * not work if you change %d to something else.
744 * This code is taken from cklog -- it lets people
745 * automatically register with the ptserver in foreign cells
748 #ifdef ALLOW_REGISTER
750 if (viceId != ANONYMOUSID) {
751 #else /* ALLOW_REGISTER */
752 if ((status == 0) && (viceId != ANONYMOUSID))
753 #endif /* ALLOW_REGISTER */
754 sprintf (username, "AFS ID %d", (int) viceId);
755 #ifdef ALLOW_REGISTER
756 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
758 printf("doing first-time registration of %s "
759 "at %s\n", username, cell_to_use);
762 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
763 strcpy(aclient.instance, "");
764 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
765 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, 0))) {
766 fprintf(stderr, "%s: unable to obtain tokens for cell %s "
767 "(status: %d).\n", progname, cell_to_use, status);
768 status = AKLOG_TOKEN;
772 * In case you're wondering, we don't need to change the
773 * filename here because we're still connecting to the
774 * same cell -- we're just using a different authentication
778 if ((status = pr_Initialize(1L, confname, aserver.cell, 0))) {
779 printf("Error %d\n", status);
782 if ((status = pr_CreateUser(username, &id))) {
783 fprintf(stderr, "%s: %s so unable to create remote PTS "
784 "user %s in cell %s (status: %d).\n", progname,
785 error_message(status), username, cell_to_use,
788 printf("created cross-cell entry for %s at %s\n",
789 username, cell_to_use);
790 sprintf(username, "AFS ID %d", (int) id);
794 #endif /* ALLOW_REGISTER */
797 #endif /* !WINDOWS */
800 fprintf(stdout, "Set username to %s\n", username);
803 /* Reset the "aclient" structure before we call ktc_SetToken.
804 * This structure was first set by the ktc_GetToken call when
805 * we were comparing whether identical tokens already existed.
807 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
808 strcpy(aclient.instance, "");
809 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
812 printf("Setting tokens. %s / %s @ %s \n",
813 aclient.name, aclient.instance, aclient.cell );
815 /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before
816 * this routine, it will not add the token. It is not clear what
817 * is going on here! So we will do the following operation
819 write(2,"",0); /* dummy write */
821 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
823 "%s: unable to obtain tokens for cell %s (status: %d).\n",
824 progname, cell_to_use, status);
825 status = AKLOG_TOKEN;
828 /* Note switched 2nd and 3rd args */
829 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
832 fprintf(stderr, "%s: Bad ticket length", progname);
835 fprintf(stderr, "%s: Unknown error contacting AFS service",
839 fprintf(stderr, "%s: Cell name (%s) not recognized by AFS service",
840 progname, realm_of_cell);
843 fprintf(stderr, "%s: AFS service is unavailable", progname);
846 fprintf(stderr, "%s: Undocumented error (%d) contacting AFS service", progname, status);
849 status = AKLOG_TOKEN;
851 #endif /* !WINDOWS */
855 printf("Noauth mode; not authenticating.\n");
861 #ifndef WINDOWS /* struct ViceIoctl missing */
864 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
866 static int get_afs_mountpoint(file, mountpoint, size)
870 #endif /* __STDC__ */
873 char V ='V'; /* AFS has problem on Sun with pioctl */
875 char our_file[MAXPATHLEN + 1];
877 char *last_component;
878 struct ViceIoctl vio;
879 char cellname[BUFSIZ];
881 memset(our_file, 0, sizeof(our_file));
882 strcpy(our_file, file);
884 if ((last_component = strrchr(our_file, DIR))) {
885 *last_component++ = 0;
886 parent_dir = our_file;
889 last_component = our_file;
893 memset(cellname, 0, sizeof(cellname));
895 vio.in = last_component;
896 vio.in_size = strlen(last_component)+1;
898 vio.out = mountpoint;
900 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) {
901 if (strchr(mountpoint, VOLMARKER) == NULL) {
903 vio.in_size = strlen(file) + 1;
904 vio.out_size = sizeof(cellname);
907 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) {
908 strcat(cellname, VOLMARKERSTRING);
909 strcat(cellname, mountpoint + 1);
910 memset(mountpoint + 1, 0, size - 1);
911 strcpy(mountpoint + 1, cellname);
921 * This routine each time it is called returns the next directory
922 * down a pathname. It resolves all symbolic links. The first time
923 * it is called, it should be called with the name of the path
924 * to be descended. After that, it should be called with the arguemnt
928 static char *next_path(char *origpath)
930 static char *next_path(origpath)
932 #endif /* __STDC__ */
934 static char path[MAXPATHLEN + 1];
935 static char pathtocheck[MAXPATHLEN + 1];
937 int link = FALSE; /* Is this a symbolic link? */
938 char linkbuf[MAXPATHLEN + 1];
939 char tmpbuf[MAXPATHLEN + 1];
941 static char *last_comp; /* last component of directory name */
942 static char *elast_comp; /* End of last component */
946 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
948 /* If we are given something for origpath, we are initializing only. */
950 memset(path, 0, sizeof(path));
951 memset(pathtocheck, 0, sizeof(pathtocheck));
952 strcpy(path, origpath);
958 /* We were not given origpath; find then next path to check */
960 /* If we've gotten all the way through already, return NULL */
961 if (last_comp == NULL)
965 while (*last_comp == DIR)
966 strncat(pathtocheck, last_comp++, 1);
967 len = (elast_comp = strchr(last_comp, DIR))
968 ? elast_comp - last_comp : strlen(last_comp);
969 strncat(pathtocheck, last_comp, len);
970 memset(linkbuf, 0, sizeof(linkbuf));
971 if ((link = readlink(pathtocheck, linkbuf,
972 sizeof(linkbuf))) > 0) {
973 if (++symlinkcount > MAXSYMLINKS) {
974 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
977 memset(tmpbuf, 0, sizeof(tmpbuf));
979 strcpy(tmpbuf, elast_comp);
980 if (linkbuf[0] == DIR) {
982 * If this is a symbolic link to an absolute path,
983 * replace what we have by the absolute path.
985 memset(path, 0, strlen(path));
986 memcpy(path, linkbuf, sizeof(linkbuf));
987 strcat(path, tmpbuf);
990 memset(pathtocheck, 0, sizeof(pathtocheck));
994 * If this is a symbolic link to a relative path,
995 * replace only the last component with the link name.
997 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
998 strcat(path, tmpbuf);
1000 if ((t = strrchr(pathtocheck, DIR))) {
1002 memset(t, 0, strlen(t));
1005 memset(pathtocheck, 0, sizeof(pathtocheck));
1009 last_comp = elast_comp;
1013 return(pathtocheck);
1016 #endif /* WINDOWS */
1019 /*****************************************/
1023 char V = 'V'; /* AFS has problem on SunOS */
1025 struct ViceIoctl vio;
1026 char outbuf[BUFSIZ];
1030 memset(outbuf, 0, sizeof(outbuf));
1032 vio.out_size = sizeof(outbuf);
1033 vio.in_size = sizeof(ind);
1038 fd = open("dee.tok",O_WRONLY);
1039 while(!pioctl(0,VIOCGETTOK,&vio,0)) {
1040 write(fd,&outbuf,sizeof(outbuf));
1045 /*****************************************/
1048 #ifndef WINDOWS /* struct ViceIoctl missing */
1051 static void add_hosts(char *file)
1053 static void add_hosts(file)
1055 #endif /* __STDC__ */
1058 char V = 'V'; /* AFS has problem on SunOS */
1060 struct ViceIoctl vio;
1061 char outbuf[BUFSIZ];
1067 memset(outbuf, 0, sizeof(outbuf));
1069 vio.out_size = sizeof(outbuf);
1074 printf("Getting list of hosts for %s\n", file);
1076 /* Don't worry about errors. */
1077 if (!pioctl(file, VIOCWHEREIS, &vio, 1)) {
1078 phosts = (long *) outbuf;
1081 * Lists hosts that we care about. If ALLHOSTS is defined,
1082 * then all hosts that you ever may possible go through are
1083 * included in this list. If not, then only hosts that are
1084 * the only ones appear. That is, if a volume you must use
1085 * is replaced on only one server, that server is included.
1086 * If it is replicated on many servers, then none are included.
1087 * This is not perfect, but the result is that people don't
1088 * get subscribed to a lot of instances of FILSRV that they
1089 * probably won't need which reduces the instances of
1090 * people getting messages that don't apply to them.
1093 if (phosts[1] != '\0')
1096 for (i = 0; phosts[i]; i++) {
1098 in.s_addr = phosts[i];
1100 printf("Got host %s\n", inet_ntoa(in));
1102 ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in));
1104 if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) {
1106 printf("Got host %s\n", hp->h_name);
1108 ll_string(&zsublist, ll_s_add, hp->h_name);
1114 #endif /* WINDOWS */
1116 #ifndef WINDOWS /* next_path(), get_afs_mountpoint() */
1119 * This routine descends through a path to a directory, logging to
1120 * every cell it encounters along the way.
1123 static int auth_to_path(krb5_context context, char *path)
1125 static int auth_to_path(context, path)
1126 krb5_context context;
1127 char *path; /* The path to which we try to authenticate */
1128 #endif /* __STDC__ */
1130 int status = AKLOG_SUCCESS;
1131 int auth_to_cell_status = AKLOG_SUCCESS;
1134 char pathtocheck[MAXPATHLEN + 1];
1135 char mountpoint[MAXPATHLEN + 1];
1144 strcpy(pathtocheck, path);
1146 if (getwd(pathtocheck) == NULL) {
1147 fprintf(stderr, "Unable to find current working directory:\n");
1148 fprintf(stderr, "%s\n", pathtocheck);
1149 fprintf(stderr, "Try an absolute pathname.\n");
1150 exit(AKLOG_BADPATH);
1153 strcat(pathtocheck, DIRSTRING);
1154 strcat(pathtocheck, path);
1157 next_path(pathtocheck);
1159 /* Go on to the next level down the path */
1160 while ((nextpath = next_path(NULL))) {
1161 strcpy(pathtocheck, nextpath);
1163 printf("Checking directory %s\n", pathtocheck);
1166 * If this is an afs mountpoint, determine what cell from
1167 * the mountpoint name which is of the form
1168 * #cellname:volumename or %cellname:volumename.
1170 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) {
1171 /* skip over the '#' or '%' */
1172 cell = mountpoint + 1;
1173 /* Add this (cell:volumename) to the list of zsubs */
1175 ll_string(&zsublist, ll_s_add, cell);
1177 add_hosts(pathtocheck);
1178 if ((endofcell = strchr(mountpoint, VOLMARKER))) {
1180 if ((auth_to_cell_status = auth_to_cell(context, cell, NULL))) {
1181 if (status == AKLOG_SUCCESS)
1182 status = auth_to_cell_status;
1183 else if (status != auth_to_cell_status)
1184 status = AKLOG_SOMETHINGSWRONG;
1189 if (isdir(pathtocheck, &isdirectory) < 0) {
1191 * If we've logged and still can't stat, there's
1194 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1195 pathtocheck, strerror(errno));
1196 return(AKLOG_BADPATH);
1198 else if (! isdirectory) {
1199 /* Allow only directories */
1200 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1202 return(AKLOG_BADPATH);
1211 #endif /* WINDOWS */
1214 /* Print usage message and exit */
1216 static void usage(void)
1219 #endif /* __STDC__ */
1221 fprintf(stderr, "\nUsage: %s %s%s%s\n", progname,
1222 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1223 "[[-p | -path] pathname]\n",
1224 " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
1225 " [-linked] [-524]\n");
1226 fprintf(stderr, " -d gives debugging information.\n");
1227 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1228 fprintf(stderr, " pathname is the name of a directory to which ");
1229 fprintf(stderr, "you wish to authenticate.\n");
1230 fprintf(stderr, " -zsubs gives zephyr subscription information.\n");
1231 fprintf(stderr, " -hosts gives host address information.\n");
1232 fprintf(stderr, " -noauth does not attempt to get tokens.\n");
1233 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1234 fprintf(stderr, " -force means replace identical tickets. \n");
1235 fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
1236 fprintf(stderr, " -setpag set the AFS process authentication group.\n");
1237 fprintf(stderr, " -524 means use the 524 converter instead of V5 directly\n");
1238 fprintf(stderr, " No commandline arguments means ");
1239 fprintf(stderr, "authenticate to the local cell.\n");
1240 fprintf(stderr, "\n");
1244 void aklog(int argc, char *argv[])
1246 krb5_context context;
1247 int status = AKLOG_SUCCESS;
1249 int somethingswrong = FALSE;
1251 cellinfo_t cellinfo;
1253 extern char *progname; /* Name of this program */
1255 extern int dflag; /* Debug mode */
1257 int cmode = FALSE; /* Cellname mode */
1258 int pmode = FALSE; /* Path name mode */
1260 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1261 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1262 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1264 linked_list cells; /* List of cells to log to */
1265 linked_list paths; /* List of paths to log to */
1268 memset(&cellinfo, 0, sizeof(cellinfo));
1270 memset(realm, 0, sizeof(realm));
1271 memset(cell, 0, sizeof(cell));
1272 memset(path, 0, sizeof(path));
1280 /* Store the program name here for error messages */
1281 if ((progname = strrchr(argv[0], DIR)))
1286 krb5_init_context(&context);
1288 initialize_ktc_error_table ();
1291 /* Initialize list of cells to which we have authenticated */
1292 (void)ll_init(&authedcells);
1294 /* Parse commandline arguments and make list of what to do. */
1295 for (i = 1; i < argc; i++) {
1296 if (strcmp(argv[i], "-d") == 0)
1298 else if (strcmp(argv[i], "-noauth") == 0)
1300 else if (strcmp(argv[i], "-zsubs") == 0)
1302 else if (strcmp(argv[i], "-hosts") == 0)
1304 else if (strcmp(argv[i], "-noprdb") == 0)
1306 else if (strcmp(argv[i], "-linked") == 0)
1308 else if (strcmp(argv[i], "-force") == 0)
1310 else if (strcmp(argv[i], "-524") == 0)
1312 else if (strcmp(argv[i], "-setpag") == 0)
1314 else if (((strcmp(argv[i], "-cell") == 0) ||
1315 (strcmp(argv[i], "-c") == 0)) && !pmode)
1318 strcpy(cell, argv[i]);
1322 else if (((strcmp(argv[i], "-path") == 0) ||
1323 (strcmp(argv[i], "-p") == 0)) && !cmode)
1327 strcpy(path, argv[i]);
1333 fprintf(stderr, "%s: path mode not supported.\n", progname);
1336 #endif /* WINDOWS */
1338 else if (argv[i][0] == '-')
1340 else if (!pmode && !cmode) {
1341 if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) ||
1342 (strcmp(argv[i], "..") == 0)) {
1345 strcpy(path, argv[i]);
1347 fprintf(stderr, "%s: path mode not supported.\n", progname);
1349 #endif /* WINDOWS */
1353 strcpy(cell, argv[i]);
1360 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) {
1363 strcpy(realm, argv[i]);
1367 /* Add this cell to list of cells */
1368 strcpy(cellinfo.cell, cell);
1369 strcpy(cellinfo.realm, realm);
1370 if ((cur_node = ll_add_node(&cells, ll_tail))) {
1372 if ((new_cellinfo = copy_cellinfo(&cellinfo)))
1373 ll_add_data(cur_node, new_cellinfo);
1376 "%s: failure copying cellinfo.\n", progname);
1381 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1385 memset(&cellinfo, 0, sizeof(cellinfo));
1387 memset(cell, 0, sizeof(cell));
1388 memset(realm, 0, sizeof(realm));
1392 /* Add this path to list of paths */
1393 if ((cur_node = ll_add_node(&paths, ll_tail))) {
1395 if ((new_path = copy_string(path)))
1396 ll_add_data(cur_node, new_path);
1398 fprintf(stderr, "%s: failure copying path name.\n",
1404 fprintf(stderr, "%s: failure adding path to paths list.\n",
1409 memset(path, 0, sizeof(path));
1411 #endif /* WINDOWS */
1415 * The code that _used_ to be here called setpag(). When you think
1416 * about this, doing this makes no sense! setpag() allocates a PAG
1417 * only for the current process, so the token installed would have
1418 * not be usable in the parent! Since ktc_SetToken() now takes a
1419 * 4th argument to control whether or not we're going to allocate
1420 * a PAG (and since when you do it _that_ way, it modifies the cred
1421 * structure of your parent)), why don't we use that instead?
1432 printf("setpag %d\n",status);
1433 j = getgroups(gidsetlen,gidset);
1434 printf("Groups(%d):",j);
1435 for (i = 0; i<j; i++) {
1436 printf("%d",gidset[i]);
1437 if((i+1)<j) printf(",");
1443 /* If nothing was given, log to the local cell. */
1444 if ((cells.nelements + paths.nelements) == 0) {
1447 status = auth_to_cell(context, NULL, NULL);
1449 /* If this cell is linked to a DCE cell, and user
1450 * requested -linked, get tokens for both
1451 * This is very usefull when the AFS cell is linked to a DFS
1452 * cell and this system does not also have DFS.
1455 if (!status && linked && linkedcell[0]) {
1456 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1458 printf("Linked cell: %s\n", linkedcell);
1460 status = auth_to_cell(context, linkedcell2, NULL);
1465 * Local hack - if the person has a file in their home
1466 * directory called ".xlog", read that for a list of
1467 * extra cells to authenticate to
1470 if ((pwd = getpwuid(getuid())) != NULL) {
1473 char fcell[100], xlog_path[512];
1475 strcpy(xlog_path, pwd->pw_dir);
1476 strcat(xlog_path, "/.xlog");
1478 if ((stat(xlog_path, &sbuf) == 0) &&
1479 ((f = fopen(xlog_path, "r")) != NULL)) {
1482 printf("Reading %s for cells to "
1483 "authenticate to.\n", xlog_path);
1486 while (fgets(fcell, 100, f) != NULL) {
1489 fcell[strlen(fcell) - 1] = '\0';
1492 printf("Found cell %s in %s.\n",
1496 auth_status = auth_to_cell(context, fcell, NULL);
1497 if (status == AKLOG_SUCCESS)
1498 status = auth_status;
1500 status = AKLOG_SOMETHINGSWRONG;
1504 #endif /* WINDOWS */
1507 /* Log to all cells in the cells list first */
1508 for (cur_node = cells.first; cur_node; cur_node = cur_node->next) {
1509 memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo));
1510 if ((status = auth_to_cell(context, cellinfo.cell, cellinfo.realm)))
1513 if (linked && linkedcell[0]) {
1514 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1516 printf("Linked cell: %s\n",
1519 if ((status = auth_to_cell(context,linkedcell2,
1527 /* Then, log to all paths in the paths list */
1528 for (cur_node = paths.first; cur_node; cur_node = cur_node->next) {
1529 if ((status = auth_to_path(context, cur_node->data)))
1532 #endif /* WINDOWS */
1535 * If only one thing was logged to, we'll return the status
1536 * of the single call. Otherwise, we'll return a generic
1537 * something failed status.
1539 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1540 status = AKLOG_SOMETHINGSWRONG;
1543 /* If we are keeping track of zephyr subscriptions, print them. */
1545 for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) {
1546 printf("zsub: %s\n", cur_node->data);
1549 /* If we are keeping track of host information, print it. */
1551 for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) {
1552 printf("host: %s\n", cur_node->data);
1558 #ifndef HAVE_ADD_TO_ERROR_TABLE
1560 #define error_table error_table_compat
1561 #include <afs/error_table.h>
1564 #ifndef HAVE_ADD_ERROR_TABLE
1565 void add_error_table (const struct error_table *);
1566 #endif /* !HAVE_ADD_ERROR_TABLE */
1569 add_to_error_table(struct et_list *new_table)
1571 add_error_table((struct error_table *) new_table->table);
1573 #endif /* HAVE_ADD_TO_ERROR_TABLE */
1575 static int isdir(char *path, unsigned char *val)
1577 struct stat statbuf;
1579 if (lstat(path, &statbuf) < 0)
1582 if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
1590 static krb5_error_code get_credv5(krb5_context context,
1591 char *name, char *inst, char *realm,
1596 static krb5_principal client_principal = 0;
1598 memset((char *)&increds, 0, sizeof(increds));
1599 /* ANL - instance may be ptr to a null string. Pass null then */
1600 if ((r = krb5_build_principal(context, &increds.server,
1601 strlen(realm), realm,
1603 (inst && strlen(inst)) ? inst : (void *) NULL,
1608 if (!_krb425_ccache) {
1609 r = krb5_cc_default(context, &_krb425_ccache);
1613 if (!client_principal) {
1614 r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1619 increds.client = client_principal;
1620 increds.times.endtime = 0;
1621 /* Ask for DES since that is what V4 understands */
1622 get_creds_enctype((&increds)) = ENCTYPE_DES_CBC_CRC;
1624 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
1630 static int get_user_realm(krb5_context context, char *realm)
1632 static krb5_principal client_principal = 0;
1635 if (!_krb425_ccache)
1636 krb5_cc_default(context, &_krb425_ccache);
1637 if (!client_principal)
1638 krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1640 i = realm_len(context, client_principal);
1641 if (i > REALM_SZ-1) i = REALM_SZ-1;
1642 strncpy(realm,realm_data(context, client_principal), i);