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>
74 #ifndef HAVE_KERBEROSV_HEIM_ERR_H
75 #include <afs/com_err.h>
78 #include <afs/param.h>
80 #include <sys/ioccom.h>
83 #include <afs/cellconfig.h>
85 #include <afs/venus.h>
86 #include <afs/ptserver.h>
87 #include <afs/ptuser.h>
88 #include <afs/dirpath.h>
92 #include "linked_list.h"
97 #ifndef AFS_TRY_FULL_PRINC
98 #define AFS_TRY_FULL_PRINC 1
99 #endif /* AFS_TRY_FULL_PRINC */
101 #define AKLOG_SUCCESS 0
102 #define AKLOG_USAGE 1
103 #define AKLOG_SOMETHINGSWRONG 2
105 #define AKLOG_KERBEROS 4
106 #define AKLOG_TOKEN 5
107 #define AKLOG_BADPATH 6
123 /* RedHat 4.x doesn't seem to define this */
124 #define MAXSYMLINKS 5
127 #define DIR '/' /* Character that divides directories */
128 #define DIRSTRING "/" /* String form of above */
129 #define VOLMARKER ':' /* Character separating cellname from mntpt */
130 #define VOLMARKERSTRING ":" /* String form of above */
134 char realm[REALM_SZ];
137 struct afsconf_cell ak_cellconfig; /* General information about the cell */
138 static char linkedcell[MAXCELLCHARS+1];
139 static char linkedcell2[MAXCELLCHARS+1];
140 static krb5_ccache _krb425_ccache = NULL;
145 extern long cm_GetRootCellName();
146 extern long cm_SearchCellFile();
148 static long cm_SearchCellFile_CallBack();
153 * Why doesn't AFS provide these prototypes?
156 extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32);
162 extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *);
163 static int isdir(char *, unsigned char *);
164 static krb5_error_code get_credv5(krb5_context context, char *, char *,
165 char *, krb5_creds **);
166 static int get_user_realm(krb5_context, char *);
168 #if defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
170 #define get_princ_str(c, p, n) krb5_princ_component(c, p, n)->data
171 #define get_princ_len(c, p, n) krb5_princ_component(c, p, n)->length
172 #define second_comp(c, p) (krb5_princ_size(c, p) > 1)
173 #define realm_data(c, p) krb5_princ_realm(c, p)->data
174 #define realm_len(c, p) krb5_princ_realm(c, p)->length
176 #elif defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING)
178 #define get_princ_str(c, p, n) krb5_principal_get_comp_string(c, p, n)
179 #define get_princ_len(c, p, n) strlen(krb5_principal_get_comp_string(c, p, n))
180 #define second_comp(c, p) (krb5_principal_get_comp_string(c, p, 1) != NULL)
181 #define realm_data(c, p) krb5_realm_data(krb5_principal_get_realm(c, p))
182 #define realm_len(c, p) krb5_realm_length(krb5_principal_get_realm(c, p))
185 #error "Must have either krb5_princ_size or krb5_principal_get_comp_string"
188 #if defined(HAVE_KRB5_CREDS_KEYBLOCK)
190 #define get_cred_keydata(c) c->keyblock.contents
191 #define get_cred_keylen(c) c->keyblock.length
192 #define get_creds_enctype(c) c->keyblock.enctype
194 #elif defined(HAVE_KRB5_CREDS_SESSION)
196 #define get_cred_keydata(c) c->session.keyvalue.data
197 #define get_cred_keylen(c) c->session.keyvalue.length
198 #define get_creds_enctype(c) c->session.keytype
201 #error "Must have either keyblock or session member of krb5_creds"
204 #if !defined(HAVE_KRB5_524_CONVERT_CREDS) && defined(HAVE_KRB524_CONVERT_CREDS_KDC)
205 #define krb5_524_convert_creds krb524_convert_creds_kdc
206 #elif !defined(HAVE_KRB5_524_CONVERT_CREDS) && !defined(HAVE_KRB524_CONVERT_CREDS_KDC)
207 #error "You must have one of krb5_524_convert_creds or krb524_convert_creds_kdc available"
213 * Provide a replacement for strerror if we don't have it
216 #ifndef HAVE_STRERROR
217 extern char *sys_errlist[];
218 #define strerror(x) sys_errlist[x]
219 #endif /* HAVE_STRERROR */
221 static char *progname = NULL; /* Name of this program */
222 static int dflag = FALSE; /* Give debugging information */
223 static int noauth = FALSE; /* If true, don't try to get tokens */
224 static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */
225 static int hosts = FALSE; /* Are we keeping track of hosts? */
226 static int noprdb = FALSE; /* Skip resolving name to id? */
227 static int linked = FALSE; /* try for both AFS nodes */
228 static int afssetpag = FALSE; /* setpag for AFS */
229 static int force = FALSE; /* Bash identical tokens? */
230 static int do524 = FALSE; /* Should we do 524 instead of rxkad2b? */
231 static linked_list zsublist; /* List of zephyr subscriptions */
232 static linked_list hostlist; /* List of host addresses */
233 static linked_list authedcells; /* List of cells already logged to */
235 /* ANL - CMU lifetime convert routine */
236 /* for K5.4.1 don't use this for now. Need to see if it is needed */
237 /* maybe needed in the krb524d module as well */
238 /* extern unsigned long krb_life_to_time(); */
240 static char *copy_cellinfo(cellinfo_t *cellinfo)
242 cellinfo_t *new_cellinfo;
244 if ((new_cellinfo = (cellinfo_t *)malloc(sizeof(cellinfo_t))))
245 memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
247 return ((char *)new_cellinfo);
251 static char *copy_string(char *string)
255 if ((new_string = (char *)calloc(strlen(string) + 1, sizeof(char))))
256 (void) strcpy(new_string, string);
262 static int get_cellconfig(char *cell, struct afsconf_cell *cellconfig, char *local_cell, char *linkedcell)
264 int status = AKLOG_SUCCESS;
265 struct afsconf_dir *configdir;
267 memset(local_cell, 0, sizeof(local_cell));
268 memset((char *)cellconfig, 0, sizeof(*cellconfig));
272 if (!(configdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) {
274 "%s: can't get afs configuration (afsconf_Open(%s))\n",
275 progname, AFSDIR_CLIENT_ETC_DIRPATH);
279 if (afsconf_GetLocalCell(configdir, local_cell, MAXCELLCHARS)) {
280 fprintf(stderr, "%s: can't determine local cell.\n", progname);
284 if ((cell == NULL) || (cell[0] == 0))
287 linkedcell[0] = '\0';
288 if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) {
289 fprintf(stderr, "%s: Can't get information about cell %s.\n",
293 if (cellconfig->linkedCell)
294 strncpy(linkedcell,cellconfig->linkedCell,MAXCELLCHARS);
296 (void) afsconf_Close(configdir);
300 * We'll try to mimic the GetCellInfo call here and fill in as much
301 * of the afsconf_cell structure as we can.
303 if (cm_GetRootCellName(local_cell)) {
304 fprintf(stderr, "%s: can't get local cellname\n", progname);
308 if ((cell == NULL) || (cell[0] == 0))
311 strcpy(cellconfig->name, cell);
313 /* No way of figuring this out as far as I can tell */
314 linkedcell[0] = '\0';
316 /* Initialize server info */
317 cellconfig->numServers = 0;
318 cellconfig->hostName[0][0] = "\0";
321 * Get servers of cell. cm_SearchCellFile_CallBack() gets call with
324 status = (int) cm_SearchCellFile(cell, NULL, &cm_SearchCellFile_CallBack,
325 cellconfig /* rock */);
332 fprintf(stderr, "%s: GetWindowsDirectory() failed.\n", progname);
336 fprintf(stderr, "%s: Couldn't open afsdcells.ini for reading\n",
341 fprintf(stderr, "%s: Couldn't find any servers for cell %s\n",
346 fprintf(stderr, "%s: Badly formatted line in afsdcells.ini (does not begin with a \">\" or contain \"#\"\n",
351 fprintf(stderr, "%s cm_SearchCellFile returned unknown error %d\n",
359 status = AKLOG_SUCCESS;
370 * Callback function for cm_SearchCellFile() in get_cellconfig() above.
371 * This function gets called once for each server that is found for the cell.
374 cm_SearchCellFile_CallBack(void *rock /* cellconfig */,
375 struct sockaddr_in *addr, /* Not used */
378 struct afsconf_cell *cellconfig = rock;
382 * Save server name and increment count of servers
384 strcpy(cellconfig->hostName[cellconfig->numServers++], server);
394 * Log to a cell. If the cell has already been logged to, return without
395 * doing anything. Otherwise, log to it and mark that it has been logged
398 static int auth_to_cell(krb5_context context, char *cell, char *realm)
400 int status = AKLOG_SUCCESS;
401 char username[BUFSIZ]; /* To hold client username structure */
402 afs_int32 viceId; /* AFS uid of user */
404 char name[ANAME_SZ]; /* Name of afs key */
405 char primary_instance[INST_SZ]; /* Instance of afs key */
406 char secondary_instance[INST_SZ]; /* Backup instance to try */
407 int try_secondary = 0; /* Flag to indicate if we try second */
408 char realm_of_user[REALM_SZ]; /* Kerberos realm of user */
409 char realm_of_cell[REALM_SZ]; /* Kerberos realm of cell */
410 char local_cell[MAXCELLCHARS+1];
411 char cell_to_use[MAXCELLCHARS+1]; /* Cell to authenticate to */
412 static char lastcell[MAXCELLCHARS+1] = { 0 };
414 static char confname[512] = { 0 };
416 krb5_creds *v5cred = NULL;
417 struct ktc_principal aserver;
418 struct ktc_principal aclient;
419 struct ktc_token atoken, btoken;
421 #ifdef ALLOW_REGISTER
423 #endif /* ALLOW_REGISTER */
425 memset(name, 0, sizeof(name));
426 memset(primary_instance, 0, sizeof(primary_instance));
427 memset(secondary_instance, 0, sizeof(secondary_instance));
428 memset(realm_of_user, 0, sizeof(realm_of_user));
429 memset(realm_of_cell, 0, sizeof(realm_of_cell));
432 if (confname[0] == '\0') {
433 strncpy(confname, AFSDIR_CLIENT_ETC_DIRPATH, sizeof(confname));
434 confname[sizeof(confname) - 2] = '\0';
438 /* NULL or empty cell returns information on local cell */
439 if ((status = get_cellconfig(cell, &ak_cellconfig,
440 local_cell, linkedcell)))
443 strncpy(cell_to_use, ak_cellconfig.name, MAXCELLCHARS);
444 cell_to_use[MAXCELLCHARS] = 0;
446 if (ll_string(&authedcells, ll_s_check, cell_to_use)) {
448 printf("Already authenticated to %s (or tried to)\n",
451 return(AKLOG_SUCCESS);
455 * Record that we have attempted to log to this cell. We do this
456 * before we try rather than after so that we will not try
457 * and fail repeatedly for one cell.
459 (void)ll_string(&authedcells, ll_s_add, cell_to_use);
462 * Record this cell in the list of zephyr subscriptions. We may
463 * want zephyr subscriptions even if authentication fails.
464 * If this is done after we attempt to get tokens, aklog -zsubs
465 * can return something different depending on whether or not we
466 * are in -noauth mode.
468 if (ll_string(&zsublist, ll_s_add, cell_to_use) == LL_FAILURE) {
470 "%s: failure adding cell %s to zephyr subscriptions list.\n",
471 progname, cell_to_use);
474 if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) {
476 "%s: failure adding cell %s to zephyr subscriptions list.\n",
477 progname, local_cell);
483 printf("Authenticating to cell %s (server %s).\n",
484 cell_to_use, ak_cellconfig.hostName[0]);
488 * Find out which realm we're supposed to authenticate to. If one
489 * is not included, use the kerberos realm found in the credentials
493 if (realm && realm[0]) {
494 strcpy(realm_of_cell, realm);
496 printf("We were told to authenticate to realm %s.\n", realm);
500 char *realm = afs_realm_of_cell(context, &ak_cellconfig);
504 "%s: Couldn't figure out realm for cell %s.\n",
505 progname, cell_to_use);
509 strcpy(realm_of_cell, realm);
512 printf("We've deduced that we need to authenticate to"
513 " realm %s.\n", realm_of_cell);
517 /* We use the afs.<cellname> convention here...
519 * Doug Engert's original code had principals of the form:
523 * in the KDC, so the name wouldn't conflict with DFS. Since we're
524 * not using DFS, I changed it just to look for the following
530 * Because people are transitioning from afs@realm to afs/cell,
531 * we configure things so that if the first one isn't found, we
532 * try the second one. You can select which one you prefer with
533 * a configure option.
536 strcpy(name, AFSKEY);
538 if (AFS_TRY_FULL_PRINC || strcasecmp(cell_to_use, realm_of_cell) != 0) {
539 strncpy(primary_instance, cell_to_use, sizeof(primary_instance));
540 primary_instance[sizeof(primary_instance)-1] = '\0';
541 if (strcasecmp(cell_to_use, realm_of_cell) == 0) {
543 secondary_instance[0] = '\0';
546 primary_instance[0] = '\0';
548 strncpy(secondary_instance, cell_to_use,
549 sizeof(secondary_instance));
550 secondary_instance[sizeof(secondary_instance)-1] = '\0';
554 * Extract the session key from the ticket file and hand-frob an
555 * afs style authenticator.
559 * Try to obtain AFS tickets. Because there are two valid service
560 * names, we will try both, but trying the more specific first.
562 * afs/<cell>@<realm> i.e. allow for single name with "."
567 printf("Getting tickets: %s/%s@%s\n", name,
568 primary_instance, realm_of_cell);
571 status = get_credv5(context, name, primary_instance, realm_of_cell,
574 if (status == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN) {
577 printf("Principal not found, trying alternate "
578 "service name: %s/%s@%s\n", name,
579 secondary_instance, realm_of_cell);
581 status = get_credv5(context, name, secondary_instance,
582 realm_of_cell, &v5cred);
588 printf("Kerberos error code returned by get_cred: %d\n",
591 fprintf(stderr, "%s: Couldn't get %s AFS tickets:\n",
592 progname, cell_to_use);
593 com_err(progname, status, "while getting AFS tickets");
594 return(AKLOG_KERBEROS);
597 strncpy(aserver.name, AFSKEY, MAXKTCNAMELEN - 1);
598 strncpy(aserver.instance, AFSINST, MAXKTCNAMELEN - 1);
599 strncpy(aserver.cell, cell_to_use, MAXKTCREALMLEN - 1);
602 * The default is to use rxkad2b, which means we put in a full
603 * V5 ticket. If the user specifies -524, we talk to the
604 * 524 ticket converter.
612 printf("Using Kerberos V5 ticket natively\n");
614 len = min(get_princ_len(context, v5cred->client, 0),
615 second_comp(context, v5cred->client) ?
616 MAXKTCNAMELEN - 2 : MAXKTCNAMELEN - 1);
617 strncpy(username, get_princ_str(context, v5cred->client, 0), len);
618 username[len] = '\0';
620 if (second_comp(context, v5cred->client)) {
621 strcat(username, ".");
622 p = username + strlen(username);
623 len = min(get_princ_len(context, v5cred->client, 1),
624 MAXKTCNAMELEN - strlen(username) - 1);
625 strncpy(p, get_princ_str(context, v5cred->client, 1), len);
629 memset(&atoken, 0, sizeof(atoken));
630 atoken.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
631 atoken.startTime = v5cred->times.starttime;;
632 atoken.endTime = v5cred->times.endtime;
633 memcpy(&atoken.sessionKey, get_cred_keydata(v5cred),
634 get_cred_keylen(v5cred));
635 atoken.ticketLen = v5cred->ticket.length;
636 memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
641 printf("Using Kerberos 524 translator service\n");
643 status = krb5_524_convert_creds(context, v5cred, &cred);
646 com_err(progname, status, "while converting tickets "
647 "to Kerberos V4 format");
648 return(AKLOG_KERBEROS);
651 strcpy (username, cred.pname);
653 strcat (username, ".");
654 strcat (username, cred.pinst);
657 atoken.kvno = cred.kvno;
658 atoken.startTime = cred.issue_date;
660 * It seems silly to go through a bunch of contortions to
661 * extract the expiration time, when the v5 credentials already
662 * has the exact time! Let's use that instead.
664 * Note that this isn't a security hole, as the expiration time
665 * is also contained in the encrypted token
667 atoken.endTime = v5cred->times.endtime;
668 memcpy(&atoken.sessionKey, cred.session, 8);
669 atoken.ticketLen = cred.ticket_st.length;
670 memcpy(atoken.ticket, cred.ticket_st.dat, atoken.ticketLen);
674 !ktc_GetToken(&aserver, &btoken, sizeof(btoken), &aclient) &&
675 atoken.kvno == btoken.kvno &&
676 atoken.ticketLen == btoken.ticketLen &&
677 !memcmp(&atoken.sessionKey, &btoken.sessionKey, sizeof(atoken.sessionKey)) &&
678 !memcmp(atoken.ticket, btoken.ticket, atoken.ticketLen)) {
681 printf("Identical tokens already exist; skipping.\n");
694 printf("Not resolving name %s to id (-noprdb set)\n",
700 if ((status = get_user_realm(context, realm_of_user))) {
701 fprintf(stderr, "%s: Couldn't determine realm of user:)",
703 com_err(progname, status, " while getting realm");
704 return(AKLOG_KERBEROS);
706 if (strcmp(realm_of_user, realm_of_cell)) {
707 strcat(username, "@");
708 strcat(username, realm_of_user);
712 printf("About to resolve name %s to id in cell %s.\n",
713 username, aserver.cell);
716 strcpy(lastcell, aserver.cell);
718 if (!pr_Initialize (0, confname, aserver.cell))
719 status = pr_SNameToId (username, &viceId);
723 printf("Error %d\n", status);
725 printf("Id %d\n", (int) viceId);
729 * This is a crock, but it is Transarc's crock, so
730 * we have to play along in order to get the
731 * functionality. The way the afs id is stored is
732 * as a string in the username field of the token.
733 * Contrary to what you may think by looking at
734 * the code for tokens, this hack (AFS ID %d) will
735 * not work if you change %d to something else.
739 * This code is taken from cklog -- it lets people
740 * automatically register with the ptserver in foreign cells
743 #ifdef ALLOW_REGISTER
745 if (viceId != ANONYMOUSID) {
746 #else /* ALLOW_REGISTER */
747 if ((status == 0) && (viceId != ANONYMOUSID))
748 #endif /* ALLOW_REGISTER */
749 sprintf (username, "AFS ID %d", (int) viceId);
750 #ifdef ALLOW_REGISTER
751 } else if (strcmp(realm_of_user, realm_of_cell) != 0) {
753 printf("doing first-time registration of %s "
754 "at %s\n", username, cell_to_use);
757 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
758 strcpy(aclient.instance, "");
759 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
760 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, 0))) {
761 fprintf(stderr, "%s: unable to obtain tokens for cell %s "
762 "(status: %d).\n", progname, cell_to_use, status);
763 status = AKLOG_TOKEN;
767 * In case you're wondering, we don't need to change the
768 * filename here because we're still connecting to the
769 * same cell -- we're just using a different authentication
773 if ((status = pr_Initialize(1L, confname, aserver.cell))) {
774 printf("Error %d\n", status);
777 if ((status = pr_CreateUser(username, &id))) {
778 fprintf(stderr, "%s: %s so unable to create remote PTS "
779 "user %s in cell %s (status: %d).\n", progname,
780 error_message(status), username, cell_to_use,
783 printf("created cross-cell entry for %s at %s\n",
784 username, cell_to_use);
785 sprintf(username, "AFS ID %d", (int) id);
789 #endif /* ALLOW_REGISTER */
792 #endif /* !WINDOWS */
795 fprintf(stdout, "Set username to %s\n", username);
798 /* Reset the "aclient" structure before we call ktc_SetToken.
799 * This structure was first set by the ktc_GetToken call when
800 * we were comparing whether identical tokens already existed.
802 strncpy(aclient.name, username, MAXKTCNAMELEN - 1);
803 strcpy(aclient.instance, "");
804 strncpy(aclient.cell, realm_of_user, MAXKTCREALMLEN - 1);
807 printf("Setting tokens. %s / %s @ %s \n",
808 aclient.name, aclient.instance, aclient.cell );
810 /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before
811 * this routine, it will not add the token. It is not clear what
812 * is going on here! So we will do the following operation
814 write(2,"",0); /* dummy write */
816 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
818 "%s: unable to obtain tokens for cell %s (status: %d).\n",
819 progname, cell_to_use, status);
820 status = AKLOG_TOKEN;
823 /* Note switched 2nd and 3rd args */
824 if ((status = ktc_SetToken(&aserver, &atoken, &aclient, afssetpag))) {
827 fprintf(stderr, "%s: Bad ticket length", progname);
830 fprintf(stderr, "%s: Unknown error contacting AFS service",
834 fprintf(stderr, "%s: Cell name (%s) not recognized by AFS service",
835 progname, realm_of_cell);
838 fprintf(stderr, "%s: AFS service is unavailable", progname);
841 fprintf(stderr, "%s: Undocumented error (%d) contacting AFS service", progname, status);
844 status = AKLOG_TOKEN;
846 #endif /* !WINDOWS */
850 printf("Noauth mode; not authenticating.\n");
856 #ifndef WINDOWS /* struct ViceIoctl missing */
858 static int get_afs_mountpoint(char *file, char *mountpoint, int size)
861 char V ='V'; /* AFS has problem on Sun with pioctl */
863 char our_file[MAXPATHLEN + 1];
865 char *last_component;
866 struct ViceIoctl vio;
867 char cellname[BUFSIZ];
869 memset(our_file, 0, sizeof(our_file));
870 strcpy(our_file, file);
872 if ((last_component = strrchr(our_file, DIR))) {
873 *last_component++ = 0;
874 parent_dir = our_file;
877 last_component = our_file;
881 memset(cellname, 0, sizeof(cellname));
883 vio.in = last_component;
884 vio.in_size = strlen(last_component)+1;
886 vio.out = mountpoint;
888 if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) {
889 if (strchr(mountpoint, VOLMARKER) == NULL) {
891 vio.in_size = strlen(file) + 1;
892 vio.out_size = sizeof(cellname);
895 if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) {
896 strcat(cellname, VOLMARKERSTRING);
897 strcat(cellname, mountpoint + 1);
898 memset(mountpoint + 1, 0, size - 1);
899 strcpy(mountpoint + 1, cellname);
909 * This routine each time it is called returns the next directory
910 * down a pathname. It resolves all symbolic links. The first time
911 * it is called, it should be called with the name of the path
912 * to be descended. After that, it should be called with the arguemnt
915 static char *next_path(char *origpath)
917 static char path[MAXPATHLEN + 1];
918 static char pathtocheck[MAXPATHLEN + 1];
920 int link = FALSE; /* Is this a symbolic link? */
921 char linkbuf[MAXPATHLEN + 1];
922 char tmpbuf[MAXPATHLEN + 1];
924 static char *last_comp; /* last component of directory name */
925 static char *elast_comp; /* End of last component */
929 static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
931 /* If we are given something for origpath, we are initializing only. */
933 memset(path, 0, sizeof(path));
934 memset(pathtocheck, 0, sizeof(pathtocheck));
935 strcpy(path, origpath);
941 /* We were not given origpath; find then next path to check */
943 /* If we've gotten all the way through already, return NULL */
944 if (last_comp == NULL)
948 while (*last_comp == DIR)
949 strncat(pathtocheck, last_comp++, 1);
950 len = (elast_comp = strchr(last_comp, DIR))
951 ? elast_comp - last_comp : strlen(last_comp);
952 strncat(pathtocheck, last_comp, len);
953 memset(linkbuf, 0, sizeof(linkbuf));
954 if (link = (readlink(pathtocheck, linkbuf,
955 sizeof(linkbuf)) > 0)) {
956 if (++symlinkcount > MAXSYMLINKS) {
957 fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
960 memset(tmpbuf, 0, sizeof(tmpbuf));
962 strcpy(tmpbuf, elast_comp);
963 if (linkbuf[0] == DIR) {
965 * If this is a symbolic link to an absolute path,
966 * replace what we have by the absolute path.
968 memset(path, 0, strlen(path));
969 memcpy(path, linkbuf, sizeof(linkbuf));
970 strcat(path, tmpbuf);
973 memset(pathtocheck, 0, sizeof(pathtocheck));
977 * If this is a symbolic link to a relative path,
978 * replace only the last component with the link name.
980 strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
981 strcat(path, tmpbuf);
983 if ((t = strrchr(pathtocheck, DIR))) {
985 memset(t, 0, strlen(t));
988 memset(pathtocheck, 0, sizeof(pathtocheck));
992 last_comp = elast_comp;
1002 /*****************************************/
1006 char V = 'V'; /* AFS has problem on SunOS */
1008 struct ViceIoctl vio;
1009 char outbuf[BUFSIZ];
1013 memset(outbuf, 0, sizeof(outbuf));
1015 vio.out_size = sizeof(outbuf);
1016 vio.in_size = sizeof(ind);
1021 fd = open("dee.tok",O_WRONLY);
1022 while(!pioctl(0,VIOCGETTOK,&vio,0)) {
1023 write(fd,&outbuf,sizeof(outbuf));
1028 /*****************************************/
1031 #ifndef WINDOWS /* struct ViceIoctl missing */
1033 static void add_hosts(char *file)
1036 char V = 'V'; /* AFS has problem on SunOS */
1038 struct ViceIoctl vio;
1039 char outbuf[BUFSIZ];
1045 memset(outbuf, 0, sizeof(outbuf));
1047 vio.out_size = sizeof(outbuf);
1052 printf("Getting list of hosts for %s\n", file);
1054 /* Don't worry about errors. */
1055 if (!pioctl(file, VIOCWHEREIS, &vio, 1)) {
1056 phosts = (long *) outbuf;
1059 * Lists hosts that we care about. If ALLHOSTS is defined,
1060 * then all hosts that you ever may possible go through are
1061 * included in this list. If not, then only hosts that are
1062 * the only ones appear. That is, if a volume you must use
1063 * is replaced on only one server, that server is included.
1064 * If it is replicated on many servers, then none are included.
1065 * This is not perfect, but the result is that people don't
1066 * get subscribed to a lot of instances of FILSRV that they
1067 * probably won't need which reduces the instances of
1068 * people getting messages that don't apply to them.
1071 if (phosts[1] != '\0')
1074 for (i = 0; phosts[i]; i++) {
1076 in.s_addr = phosts[i];
1078 printf("Got host %s\n", inet_ntoa(in));
1080 ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in));
1082 if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) {
1084 printf("Got host %s\n", hp->h_name);
1086 ll_string(&zsublist, ll_s_add, hp->h_name);
1092 #endif /* WINDOWS */
1094 #ifndef WINDOWS /* next_path(), get_afs_mountpoint() */
1097 * This routine descends through a path to a directory, logging to
1098 * every cell it encounters along the way.
1100 static int auth_to_path(krb5_context context, char *path)
1102 int status = AKLOG_SUCCESS;
1103 int auth_to_cell_status = AKLOG_SUCCESS;
1106 char pathtocheck[MAXPATHLEN + 1];
1107 char mountpoint[MAXPATHLEN + 1];
1116 strcpy(pathtocheck, path);
1118 if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL) {
1119 fprintf(stderr, "Unable to find current working directory:\n");
1120 fprintf(stderr, "%s\n", pathtocheck);
1121 fprintf(stderr, "Try an absolute pathname.\n");
1122 exit(AKLOG_BADPATH);
1125 strcat(pathtocheck, DIRSTRING);
1126 strcat(pathtocheck, path);
1129 next_path(pathtocheck);
1131 /* Go on to the next level down the path */
1132 while ((nextpath = next_path(NULL))) {
1133 strcpy(pathtocheck, nextpath);
1135 printf("Checking directory %s\n", pathtocheck);
1138 * If this is an afs mountpoint, determine what cell from
1139 * the mountpoint name which is of the form
1140 * #cellname:volumename or %cellname:volumename.
1142 if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) {
1143 /* skip over the '#' or '%' */
1144 cell = mountpoint + 1;
1145 /* Add this (cell:volumename) to the list of zsubs */
1147 ll_string(&zsublist, ll_s_add, cell);
1149 add_hosts(pathtocheck);
1150 if ((endofcell = strchr(mountpoint, VOLMARKER))) {
1152 if ((auth_to_cell_status = auth_to_cell(context, cell, NULL))) {
1153 if (status == AKLOG_SUCCESS)
1154 status = auth_to_cell_status;
1155 else if (status != auth_to_cell_status)
1156 status = AKLOG_SOMETHINGSWRONG;
1161 if (isdir(pathtocheck, &isdirectory) < 0) {
1163 * If we've logged and still can't stat, there's
1166 fprintf(stderr, "%s: stat(%s): %s\n", progname,
1167 pathtocheck, strerror(errno));
1168 return(AKLOG_BADPATH);
1170 else if (! isdirectory) {
1171 /* Allow only directories */
1172 fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
1174 return(AKLOG_BADPATH);
1183 #endif /* WINDOWS */
1186 /* Print usage message and exit */
1187 static void usage(void)
1189 fprintf(stderr, "\nUsage: %s %s%s%s\n", progname,
1190 "[-d] [[-cell | -c] cell [-k krb_realm]] ",
1191 "[[-p | -path] pathname]\n",
1192 " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
1193 " [-linked] [-524]\n");
1194 fprintf(stderr, " -d gives debugging information.\n");
1195 fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
1196 fprintf(stderr, " pathname is the name of a directory to which ");
1197 fprintf(stderr, "you wish to authenticate.\n");
1198 fprintf(stderr, " -zsubs gives zephyr subscription information.\n");
1199 fprintf(stderr, " -hosts gives host address information.\n");
1200 fprintf(stderr, " -noauth does not attempt to get tokens.\n");
1201 fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
1202 fprintf(stderr, " -force means replace identical tickets. \n");
1203 fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
1204 fprintf(stderr, " -setpag set the AFS process authentication group.\n");
1205 fprintf(stderr, " -524 means use the 524 converter instead of V5 directly\n");
1206 fprintf(stderr, " No commandline arguments means ");
1207 fprintf(stderr, "authenticate to the local cell.\n");
1208 fprintf(stderr, "\n");
1212 void aklog(int argc, char *argv[])
1214 krb5_context context;
1215 int status = AKLOG_SUCCESS;
1217 int somethingswrong = FALSE;
1219 cellinfo_t cellinfo;
1221 extern char *progname; /* Name of this program */
1223 extern int dflag; /* Debug mode */
1225 int cmode = FALSE; /* Cellname mode */
1226 int pmode = FALSE; /* Path name mode */
1228 char realm[REALM_SZ]; /* Kerberos realm of afs server */
1229 char cell[BUFSIZ]; /* Cell to which we are authenticating */
1230 char path[MAXPATHLEN + 1]; /* Path length for path mode */
1232 linked_list cells; /* List of cells to log to */
1233 linked_list paths; /* List of paths to log to */
1236 memset(&cellinfo, 0, sizeof(cellinfo));
1238 memset(realm, 0, sizeof(realm));
1239 memset(cell, 0, sizeof(cell));
1240 memset(path, 0, sizeof(path));
1248 /* Store the program name here for error messages */
1249 if ((progname = strrchr(argv[0], DIR)))
1254 krb5_init_context(&context);
1256 initialize_ktc_error_table ();
1259 /* Initialize list of cells to which we have authenticated */
1260 (void)ll_init(&authedcells);
1262 /* Parse commandline arguments and make list of what to do. */
1263 for (i = 1; i < argc; i++) {
1264 if (strcmp(argv[i], "-d") == 0)
1266 else if (strcmp(argv[i], "-noauth") == 0)
1268 else if (strcmp(argv[i], "-zsubs") == 0)
1270 else if (strcmp(argv[i], "-hosts") == 0)
1272 else if (strcmp(argv[i], "-noprdb") == 0)
1274 else if (strcmp(argv[i], "-linked") == 0)
1276 else if (strcmp(argv[i], "-force") == 0)
1278 else if (strcmp(argv[i], "-524") == 0)
1280 else if (strcmp(argv[i], "-setpag") == 0)
1282 else if (((strcmp(argv[i], "-cell") == 0) ||
1283 (strcmp(argv[i], "-c") == 0)) && !pmode)
1286 strcpy(cell, argv[i]);
1290 else if (((strcmp(argv[i], "-path") == 0) ||
1291 (strcmp(argv[i], "-p") == 0)) && !cmode)
1295 strcpy(path, argv[i]);
1301 fprintf(stderr, "%s: path mode not supported.\n", progname);
1304 #endif /* WINDOWS */
1306 else if (argv[i][0] == '-')
1308 else if (!pmode && !cmode) {
1309 if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) ||
1310 (strcmp(argv[i], "..") == 0)) {
1313 strcpy(path, argv[i]);
1315 fprintf(stderr, "%s: path mode not supported.\n", progname);
1317 #endif /* WINDOWS */
1321 strcpy(cell, argv[i]);
1328 if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) {
1331 strcpy(realm, argv[i]);
1335 /* Add this cell to list of cells */
1336 strcpy(cellinfo.cell, cell);
1337 strcpy(cellinfo.realm, realm);
1338 if ((cur_node = ll_add_node(&cells, ll_tail))) {
1340 if ((new_cellinfo = copy_cellinfo(&cellinfo)))
1341 ll_add_data(cur_node, new_cellinfo);
1344 "%s: failure copying cellinfo.\n", progname);
1349 fprintf(stderr, "%s: failure adding cell to cells list.\n",
1353 memset(&cellinfo, 0, sizeof(cellinfo));
1355 memset(cell, 0, sizeof(cell));
1356 memset(realm, 0, sizeof(realm));
1360 /* Add this path to list of paths */
1361 if ((cur_node = ll_add_node(&paths, ll_tail))) {
1363 if ((new_path = copy_string(path)))
1364 ll_add_data(cur_node, new_path);
1366 fprintf(stderr, "%s: failure copying path name.\n",
1372 fprintf(stderr, "%s: failure adding path to paths list.\n",
1377 memset(path, 0, sizeof(path));
1379 #endif /* WINDOWS */
1383 * The code that _used_ to be here called setpag(). When you think
1384 * about this, doing this makes no sense! setpag() allocates a PAG
1385 * only for the current process, so the token installed would have
1386 * not be usable in the parent! Since ktc_SetToken() now takes a
1387 * 4th argument to control whether or not we're going to allocate
1388 * a PAG (and since when you do it _that_ way, it modifies the cred
1389 * structure of your parent)), why don't we use that instead?
1400 printf("setpag %d\n",status);
1401 j = getgroups(gidsetlen,gidset);
1402 printf("Groups(%d):",j);
1403 for (i = 0; i<j; i++) {
1404 printf("%d",gidset[i]);
1405 if((i+1)<j) printf(",");
1411 /* If nothing was given, log to the local cell. */
1412 if ((cells.nelements + paths.nelements) == 0) {
1415 status = auth_to_cell(context, NULL, NULL);
1417 /* If this cell is linked to a DCE cell, and user
1418 * requested -linked, get tokens for both
1419 * This is very usefull when the AFS cell is linked to a DFS
1420 * cell and this system does not also have DFS.
1423 if (!status && linked && linkedcell[0]) {
1424 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1426 printf("Linked cell: %s\n", linkedcell);
1428 status = auth_to_cell(context, linkedcell2, NULL);
1433 * Local hack - if the person has a file in their home
1434 * directory called ".xlog", read that for a list of
1435 * extra cells to authenticate to
1438 if ((pwd = getpwuid(getuid())) != NULL) {
1441 char fcell[100], xlog_path[512];
1443 strcpy(xlog_path, pwd->pw_dir);
1444 strcat(xlog_path, "/.xlog");
1446 if ((stat(xlog_path, &sbuf) == 0) &&
1447 ((f = fopen(xlog_path, "r")) != NULL)) {
1450 printf("Reading %s for cells to "
1451 "authenticate to.\n", xlog_path);
1454 while (fgets(fcell, 100, f) != NULL) {
1457 fcell[strlen(fcell) - 1] = '\0';
1460 printf("Found cell %s in %s.\n",
1464 auth_status = auth_to_cell(context, fcell, NULL);
1465 if (status == AKLOG_SUCCESS)
1466 status = auth_status;
1468 status = AKLOG_SOMETHINGSWRONG;
1472 #endif /* WINDOWS */
1475 /* Log to all cells in the cells list first */
1476 for (cur_node = cells.first; cur_node; cur_node = cur_node->next) {
1477 memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo));
1478 if ((status = auth_to_cell(context, cellinfo.cell, cellinfo.realm)))
1481 if (linked && linkedcell[0]) {
1482 strncpy(linkedcell2,linkedcell,MAXCELLCHARS);
1484 printf("Linked cell: %s\n",
1487 if ((status = auth_to_cell(context,linkedcell2,
1495 /* Then, log to all paths in the paths list */
1496 for (cur_node = paths.first; cur_node; cur_node = cur_node->next) {
1497 if ((status = auth_to_path(context, cur_node->data)))
1500 #endif /* WINDOWS */
1503 * If only one thing was logged to, we'll return the status
1504 * of the single call. Otherwise, we'll return a generic
1505 * something failed status.
1507 if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
1508 status = AKLOG_SOMETHINGSWRONG;
1511 /* If we are keeping track of zephyr subscriptions, print them. */
1513 for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) {
1514 printf("zsub: %s\n", cur_node->data);
1517 /* If we are keeping track of host information, print it. */
1519 for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) {
1520 printf("host: %s\n", cur_node->data);
1526 #ifndef HAVE_ADD_TO_ERROR_TABLE
1528 #define error_table error_table_compat
1529 #include <afs/error_table.h>
1532 #ifndef HAVE_ADD_ERROR_TABLE
1533 void add_error_table (const struct error_table *);
1534 #endif /* !HAVE_ADD_ERROR_TABLE */
1537 add_to_error_table(struct et_list *new_table)
1539 add_error_table((struct error_table *) new_table->table);
1541 #endif /* HAVE_ADD_TO_ERROR_TABLE */
1543 static int isdir(char *path, unsigned char *val)
1545 struct stat statbuf;
1547 if (lstat(path, &statbuf) < 0)
1550 if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
1558 static krb5_error_code get_credv5(krb5_context context,
1559 char *name, char *inst, char *realm,
1564 static krb5_principal client_principal = 0;
1566 memset((char *)&increds, 0, sizeof(increds));
1567 /* ANL - instance may be ptr to a null string. Pass null then */
1568 if ((r = krb5_build_principal(context, &increds.server,
1569 strlen(realm), realm,
1571 (inst && strlen(inst)) ? inst : (void *) NULL,
1576 if (!_krb425_ccache) {
1577 r = krb5_cc_default(context, &_krb425_ccache);
1581 if (!client_principal) {
1582 r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1587 increds.client = client_principal;
1588 increds.times.endtime = 0;
1589 /* Ask for DES since that is what V4 understands */
1590 get_creds_enctype((&increds)) = ENCTYPE_DES_CBC_CRC;
1592 r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
1598 static int get_user_realm(krb5_context context, char *realm)
1600 static krb5_principal client_principal = 0;
1603 if (!_krb425_ccache)
1604 krb5_cc_default(context, &_krb425_ccache);
1605 if (!client_principal)
1606 krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
1608 i = realm_len(context, client_principal);
1609 if (i > REALM_SZ-1) i = REALM_SZ-1;
1610 strncpy(realm,realm_data(context, client_principal), i);