-/*
+/*
* $Id$
*
* Copyright 1990,1991 by the Massachusetts Institute of Technology
* For distribution and copying rights, see the file "mit-copyright.h"
*/
+/*
+ * Copyright (c) 2005, 2006
+ * The Linux Box Corporation
+ * ALL RIGHTS RESERVED
+ *
+ * Permission is granted to use, copy, create derivative works
+ * and redistribute this software and such derivative works
+ * for any purpose, so long as the name of the Linux Box
+ * Corporation is not used in any advertising or publicity
+ * pertaining to the use or distribution of this software
+ * without specific, written prior authorization. If the
+ * above copyright notice or any other identification of the
+ * Linux Box Corporation is included in any copy of any
+ * portion of this software, then the disclaimer below must
+ * also be included.
+ *
+ * This software is provided as is, without representation
+ * from the Linux Box Corporation as to its fitness for any
+ * purpose, and without warranty by the Linux Box Corporation
+ * of any kind, either express or implied, including
+ * without limitation the implied warranties of
+ * merchantability and fitness for a particular purpose. The
+ * regents of the Linux Box Corporation shall not be liable
+ * for any damages, including special, indirect, incidental, or
+ * consequential damages, with respect to any claim arising
+ * out of or in connection with the use of the software, even
+ * if it has been or is hereafter advised of the possibility of
+ * such damages.
+ */
-#if !defined(lint) && !defined(SABER)
-static char *rcsid = "$Id$";
-#endif /* lint || SABER */
-
+#include <afsconfig.h>
+#include <afs/param.h>
#include <afs/stds.h>
+
+#include <roken.h>
+
+#include <ctype.h>
+
+#include <afs/ktc.h>
+#include <afs/token.h>
+
+#define KERBEROS_APPLE_DEPRECATED(x)
+#include <krb5.h>
+#ifdef HAVE_COM_ERR_H
+# include <com_err.h>
+#elif HAVE_ET_COM_ERR_H
+# include <et/com_err.h>
+#elif HAVE_KRB5_COM_ERR_H
+# include <krb5/com_err.h>
+#else
+# error No com_err.h? We need some kind of com_err.h
+#endif
+
+#ifndef HAVE_KERBEROSV_HEIM_ERR_H
+#include <afs/com_err.h>
+#endif
+
+#ifdef AFS_SUN5_ENV
+#include <sys/ioccom.h>
+#endif
+
+#include <afs/auth.h>
+#include <afs/cellconfig.h>
+#include <afs/vice.h>
+#include <afs/venus.h>
+#include <afs/ptserver.h>
+#include <afs/ptuser.h>
+#include <afs/pterror.h>
+#include <afs/dirpath.h>
+#include <afs/afsutil.h>
+
#include "aklog.h"
+#include "linked_list.h"
-#ifndef WINDOWS
+#ifdef HAVE_KRB5_CREDS_KEYBLOCK
+#define USING_MIT 1
+#endif
+#ifdef HAVE_KRB5_CREDS_SESSION
+#define USING_HEIMDAL 1
+#endif
-int
-main(int argc, char *argv[])
+#define AFSKEY "afs"
+#define AFSINST ""
+
+#ifndef AFS_TRY_FULL_PRINC
+#define AFS_TRY_FULL_PRINC 1
+#endif /* AFS_TRY_FULL_PRINC */
+
+#define AKLOG_TRYAGAIN -1
+#define AKLOG_SUCCESS 0
+#define AKLOG_USAGE 1
+#define AKLOG_SOMETHINGSWRONG 2
+#define AKLOG_AFS 3
+#define AKLOG_KERBEROS 4
+#define AKLOG_TOKEN 5
+#define AKLOG_BADPATH 6
+#define AKLOG_MISC 7
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef MAXSYMLINKS
+/* RedHat 4.x doesn't seem to define this */
+#define MAXSYMLINKS 5
+#endif
+
+#define DIR '/' /* Character that divides directories */
+#define DIRSTRING "/" /* String form of above */
+#define VOLMARKER ':' /* Character separating cellname from mntpt */
+#define VOLMARKERSTRING ":" /* String form of above */
+#define AKIMP_LIFETIME_MAX 720 /* Max token lifetime for akimpersonate in hours (30 days) */
+
+typedef struct {
+ char cell[BUFSIZ];
+ char realm[REALM_SZ];
+} cellinfo_t;
+
+static krb5_ccache _krb425_ccache = NULL;
+
+/*
+ * Why doesn't AFS provide these prototypes?
+ */
+
+extern int pioctl(char *, afs_int32, struct ViceIoctl *, afs_int32);
+
+/*
+ * Other prototypes
+ */
+
+extern char *afs_realm_of_cell(krb5_context, struct afsconf_cell *, int);
+static int isdir(char *, unsigned char *);
+static krb5_error_code get_credv5(krb5_context context, char *, char *,
+ char *, krb5_creds **);
+static int get_user_realm(krb5_context, char **);
+
+#define TRYAGAIN(x) (x == AKLOG_TRYAGAIN || \
+ x == KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN || \
+ x == KRB5_KT_NOTFOUND || \
+ x == KRB5KRB_ERR_GENERIC)
+
+#if defined(HAVE_KRB5_PRINC_SIZE) || defined(krb5_princ_size)
+
+#define get_princ_str(c, p, n) krb5_princ_component(c, p, n)->data
+#define get_princ_len(c, p, n) krb5_princ_component(c, p, n)->length
+#define second_comp(c, p) (krb5_princ_size(c, p) > 1)
+#define realm_data(c, p) krb5_princ_realm(c, p)->data
+#define realm_len(c, p) krb5_princ_realm(c, p)->length
+
+#elif defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING)
+
+#define get_princ_str(c, p, n) krb5_principal_get_comp_string(c, p, n)
+#define get_princ_len(c, p, n) strlen(krb5_principal_get_comp_string(c, p, n))
+#define second_comp(c, p) (krb5_principal_get_comp_string(c, p, 1) != NULL)
+#define realm_data(c, p) krb5_realm_data(krb5_principal_get_realm(c, p))
+#define realm_len(c, p) krb5_realm_length(krb5_principal_get_realm(c, p))
+
+#else
+#error "Must have either krb5_princ_size or krb5_principal_get_comp_string"
+#endif
+
+#if defined(HAVE_ENCODE_KRB5_TICKET)
+extern krb5_error_code encode_krb5_ticket (const krb5_ticket *rep,
+ krb5_data **code);
+#endif
+
+#if !defined(HAVE_KRB5_ENCRYPT_TKT_PART) && defined(HAVE_ENCODE_KRB5_ENC_TKT_PART) && defined(HAVE_KRB5_C_ENCRYPT)
+extern krb5_error_code encode_krb5_enc_tkt_part (const krb5_enc_tkt_part *rep,
+ krb5_data **code);
+
+krb5_error_code
+krb5_encrypt_tkt_part(krb5_context context,
+ const krb5_keyblock *key,
+ krb5_ticket *ticket)
+{
+ krb5_data *data = 0;
+ int code;
+ size_t enclen;
+
+ if ((code = encode_krb5_enc_tkt_part(ticket->enc_part2, &data)))
+ goto Done;
+ if ((code = krb5_c_encrypt_length(context, key->enctype,
+ data->length, &enclen)))
+ goto Done;
+ ticket->enc_part.ciphertext.length = enclen;
+ if (!(ticket->enc_part.ciphertext.data = malloc(enclen))) {
+ code = ENOMEM;
+ goto Done;
+ }
+ if ((code = krb5_c_encrypt(context, key, KRB5_KEYUSAGE_KDC_REP_TICKET,
+ 0, data, &ticket->enc_part))) {
+ free(ticket->enc_part.ciphertext.data);
+ ticket->enc_part.ciphertext.data = 0;
+ }
+Done:
+ if (data) {
+ if (data->data)
+ free(data->data);
+ free(data);
+ }
+ return code;
+}
+#endif
+
+#if defined(HAVE_KRB5_CREDS_KEYBLOCK)
+
+#define get_cred_keydata(c) c->keyblock.contents
+#define get_cred_keylen(c) c->keyblock.length
+#define get_creds_enctype(c) c->keyblock.enctype
+
+#elif defined(HAVE_KRB5_CREDS_SESSION)
+
+#define get_cred_keydata(c) c->session.keyvalue.data
+#define get_cred_keylen(c) c->session.keyvalue.length
+#define get_creds_enctype(c) c->session.keytype
+
+#else
+#error "Must have either keyblock or session member of krb5_creds"
+#endif
+
+/* MITKerberosShim logs but returns success */
+#if !defined(HAVE_KRB5_524_CONV_PRINCIPAL) || defined(AFS_DARWIN110_ENV) || (!defined(HAVE_KRB5_524_CONVERT_CREDS) && !defined(HAVE_KRB524_CONVERT_CREDS_KDC))
+#define HAVE_NO_KRB5_524
+#elif !defined(HAVE_KRB5_524_CONVERT_CREDS) && defined(HAVE_KRB524_CONVERT_CREDS_KDC)
+#define krb5_524_convert_creds krb524_convert_creds_kdc
+#endif
+
+#if USING_HEIMDAL
+#define deref_keyblock_enctype(kb) \
+ ((kb)->keytype)
+
+#define deref_entry_keyblock(entry) \
+ entry->keyblock
+
+#define deref_session_key(creds) \
+ creds->session
+
+#define deref_enc_tkt_addrs(tkt) \
+ tkt->caddr
+
+#define deref_enc_length(enc) \
+ ((enc)->cipher.length)
+
+#define deref_enc_data(enc) \
+ ((enc)->cipher.data)
+
+#define krb5_free_keytab_entry_contents krb5_kt_free_entry
+
+#else
+#define deref_keyblock_enctype(kb) \
+ ((kb)->enctype)
+
+#define deref_entry_keyblock(entry) \
+ entry->key
+
+#define deref_session_key(creds) \
+ creds->keyblock
+
+#define deref_enc_tkt_addrs(tkt) \
+ tkt->caddrs
+
+#define deref_enc_length(enc) \
+ ((enc)->ciphertext.length)
+
+#define deref_enc_data(enc) \
+ ((enc)->ciphertext.data)
+
+#endif
+
+#define deref_entry_enctype(entry) \
+ deref_keyblock_enctype(&deref_entry_keyblock(entry))
+
+/*
+ * Provide a replacement for strerror if we don't have it
+ */
+
+#ifndef HAVE_STRERROR
+extern char *sys_errlist[];
+#define strerror(x) sys_errlist[x]
+#endif /* HAVE_STRERROR */
+
+static char *progname = NULL; /* Name of this program */
+static int dflag = FALSE; /* Give debugging information */
+static int noauth = FALSE; /* If true, don't try to get tokens */
+static int zsubs = FALSE; /* Are we keeping track of zephyr subs? */
+static int hosts = FALSE; /* Are we keeping track of hosts? */
+static int noprdb = FALSE; /* Skip resolving name to id? */
+static int linked = FALSE; /* try for both AFS nodes */
+static int afssetpag = FALSE; /* setpag for AFS */
+static int force = FALSE; /* Bash identical tokens? */
+static int do524 = FALSE; /* Should we do 524 instead of rxkad2b? */
+static char *keytab = NULL; /* keytab for akimpersonate */
+static char *client = NULL; /* client principal for akimpersonate */
+static linked_list zsublist; /* List of zephyr subscriptions */
+static linked_list hostlist; /* List of host addresses */
+static linked_list authedcells; /* List of cells already logged to */
+static int akimp_lifetime = 36000; /* Lifetime for akimpersonate tokens. Default 10 hrs */
+static int akimplifetime_present = 0; /* Whether a lifetime was specified for akimpersonate */
+
+/* A com_error bodge. The idea here is that this routine lets us lookup
+ * things in the system com_err, if the AFS one just tells us the error
+ * is unknown
+ */
+
+void
+redirect_errors(const char *who, afs_int32 code, const char *fmt, va_list ap)
+{
+ if (who) {
+ fputs(who, stderr);
+ fputs(": ", stderr);
+ }
+ if (code) {
+ const char *str = afs_error_message(code);
+ if (strncmp(str, "unknown", strlen("unknown")) == 0) {
+#ifdef HAVE_KRB5_SVC_GET_MSG
+ krb5_svc_get_msg(code,&str);
+#elif defined(HAVE_KRB5_GET_ERROR_MESSAGE)
+ krb5_context context;
+ if (krb5_init_context(&context) == 0) {
+ str = krb5_get_error_message(context, code);
+ krb5_free_context(context);
+ }
+#else
+ ; /* IRIX apparently has neither: use the string we have */
+#endif
+ }
+ fputs(str, stderr);
+ fputs(" ", stderr);
+#ifdef HAVE_KRB5_SVC_GET_MSG
+ krb5_free_string(str);
+#endif
+ }
+ if (fmt) {
+ vfprintf(stderr, fmt, ap);
+ }
+ putc('\n', stderr);
+ fflush(stderr);
+}
+
+static void
+afs_dprintf(char *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (dflag)
+ vprintf(fmt, ap);
+ va_end(ap);
+}
+
+static char *
+copy_cellinfo(cellinfo_t *cellinfo)
+{
+ cellinfo_t *new_cellinfo;
+
+ if ((new_cellinfo = malloc(sizeof(cellinfo_t))))
+ memcpy(new_cellinfo, cellinfo, sizeof(cellinfo_t));
+
+ return ((char *)new_cellinfo);
+}
+
+
+static int
+get_cellconfig(const char *config, char *cell,
+ struct afsconf_cell *cellconfig, char **local_cell)
+{
+ int status = AKLOG_SUCCESS;
+ struct afsconf_dir *configdir;
+
+ memset(cellconfig, 0, sizeof(*cellconfig));
+
+ *local_cell = malloc(MAXCELLCHARS);
+ if (*local_cell == NULL) {
+ fprintf(stderr, "%s: can't allocate memory for local cell name\n",
+ progname);
+ exit(AKLOG_AFS);
+ }
+
+ if (!(configdir = afsconf_Open(config))) {
+ fprintf(stderr,
+ "%s: can't get afs configuration (afsconf_Open(%s))\n",
+ progname, config);
+ exit(AKLOG_AFS);
+ }
+
+ if (cell != NULL && cell[0] == '\0') {
+ /* Use the local cell */
+ cell = NULL;
+ }
+
+ /* XXX - This function modifies 'cell' by passing it through lcstring */
+ if (afsconf_GetCellInfo(configdir, cell, NULL, cellconfig)) {
+ if (cell != NULL) {
+ fprintf(stderr, "%s: Can't get information about cell %s.\n",
+ progname, cell);
+ } else {
+ fprintf(stderr, "%s: Can't get information about the local cell.\n",
+ progname);
+ }
+ status = AKLOG_AFS;
+ } else if (afsconf_GetLocalCell(configdir, *local_cell, MAXCELLCHARS)) {
+ fprintf(stderr, "%s: can't determine local cell.\n", progname);
+ exit(AKLOG_AFS);
+ }
+
+ afsconf_Close(configdir);
+
+ return(status);
+}
+
+static char *
+extract_realm(krb5_context context, krb5_principal princ) {
+ int len;
+ char *realm;
+
+ len = realm_len(context, princ);
+ if (len > REALM_SZ-1)
+ len = REALM_SZ-1;
+
+ realm = malloc(sizeof(char) * (len+1));
+ if (realm == NULL)
+ return NULL;
+
+ strncpy(realm, realm_data(context, princ), len);
+ realm[len] = '\0';
+
+ return realm;
+}
+
+static int
+get_realm_from_cred(krb5_context context, krb5_creds *v5cred, char **realm) {
+#if !defined(HEIMDAL) && defined(HAVE_KRB5_DECODE_TICKET)
+ krb5_error_code code;
+ krb5_ticket *ticket;
+
+ *realm = NULL;
+
+ code = krb5_decode_ticket(&v5cred->ticket, &ticket);
+ if (code)
+ return code;
+
+ *realm = extract_realm(context, ticket->server);
+ if (*realm == NULL)
+ code = ENOMEM;
+
+ krb5_free_ticket(context, ticket);
+
+ return code;
+#else
+ *realm = NULL;
+ return 0;
+#endif
+}
+
+/*!
+ * Get a Kerberos service ticket to use as the base of an rxkad token for
+ * a given AFS cell.
+ *
+ * @param[in] context
+ * An initialized Kerberos v5 context
+ * @param[in] realm
+ * The realm to look in for the service principal. If NULL, then the
+ * realm is determined from the cell name or the user's credentials
+ * (see below for the heuristics used)
+ * @param[in] cell
+ * The cell information for the cell to obtain a ticket for
+ * @param[out] v5cred
+ * A Kerberos credentials structure containing the ticket acquired
+ * for the cell. This is a dynamically allocated structure, which
+ * should be freed by using the appropriate Kerberos API function.
+ * @param[out] realmUsed
+ * The realm in which the cell's service principal was located. If
+ * unset, then the principal was located in the same realm as the
+ * current user. This is a malloc'd string which should be freed
+ * by the caller.
+ *
+ * @returns
+ * 0 on success, an error value upon failure
+ *
+ * @notes
+ * This code tries principals in the following, much debated,
+ * order:
+ *
+ * If the realm is specified on the command line we do
+ * - afs/cell@COMMAND-LINE-REALM
+ * - afs@COMMAND-LINE-REALM
+ *
+ * Otherwise, we do
+ * - afs/cell@REALM-FROM-USERS-PRINCIPAL
+ * - afs/cell@krb5_get_host_realm(db-server)
+ * Then, if krb5_get_host_realm(db-server) is non-empty
+ * - afs@ krb5_get_host_realm(db-server)
+ * Otherwise
+ * - afs/cell@ upper-case-domain-of-db-server
+ * - afs@ upper-case-domain-of-db-server
+ *
+ * In all cases, the 'afs@' variant is only tried where the
+ * cell and the realm match case-insensitively.
+ */
+
+static int
+rxkad_get_ticket(krb5_context context, char *realm,
+ struct afsconf_cell *cell,
+ krb5_creds **v5cred, char **realmUsed) {
+ char *realm_of_cell = NULL;
+ char *realm_of_user = NULL;
+ char *realm_from_princ = NULL;
+ int status;
+ int retry;
+
+ *realmUsed = NULL;
+
+ if ((status = get_user_realm(context, &realm_of_user))) {
+ fprintf(stderr, "%s: Couldn't determine realm of user:", progname);
+ afs_com_err(progname, status, " while getting realm");
+ status = AKLOG_KERBEROS;
+ goto out;
+ }
+
+ retry = 1;
+
+ while(retry) {
+ /* Cell on command line - use that one */
+ if (realm && realm[0]) {
+ realm_of_cell = realm;
+ status = AKLOG_TRYAGAIN;
+ afs_dprintf("We were told to authenticate to realm %s.\n", realm);
+ } else {
+ /* Initially, try using afs/cell@USERREALM */
+ afs_dprintf("Trying to authenticate to user's realm %s.\n",
+ realm_of_user);
+ realm_of_cell = realm_of_user;
+ status = get_credv5(context, AFSKEY, cell->name, realm_of_cell,
+ v5cred);
+
+ /* If that failed, try to determine the realm from the name of
+ * one of the DB servers */
+ if (TRYAGAIN(status)) {
+ realm_of_cell = afs_realm_of_cell(context, cell, FALSE);
+ if (!realm_of_cell) {
+ fprintf(stderr, "%s: Couldn't figure out realm for cell "
+ "%s.\n", progname, cell->name);
+ exit(AKLOG_MISC);
+ }
+
+ if (realm_of_cell[0])
+ afs_dprintf("We've deduced that we need to authenticate"
+ " to realm %s.\n", realm_of_cell);
+ else
+ afs_dprintf("We've deduced that we need to authenticate "
+ "using referrals.\n");
+ }
+ }
+
+ if (TRYAGAIN(status)) {
+ /* If we've got the full-princ-first option, or we're in a
+ * different realm from the cell - use the cell name as the
+ * instance */
+ if (AFS_TRY_FULL_PRINC ||
+ strcasecmp(cell->name, realm_of_cell)!=0) {
+ status = get_credv5(context, AFSKEY, cell->name,
+ realm_of_cell, v5cred);
+
+ /* If we failed & we've got an empty realm, then try
+ * calling afs_realm_for_cell again. */
+ if (TRYAGAIN(status) && !realm_of_cell[0]) {
+ /* This time, get the realm by taking the domain
+ * component of the db server and make it upper case */
+ realm_of_cell = afs_realm_of_cell(context, cell, TRUE);
+ if (!realm_of_cell) {
+ fprintf(stderr,
+ "%s: Couldn't figure out realm for cell %s.\n",
+ progname, cell->name);
+ exit(AKLOG_MISC);
+ }
+ afs_dprintf("We've deduced that we need to authenticate"
+ " to realm %s.\n", realm_of_cell);
+ status = get_credv5(context, AFSKEY, cell->name,
+ realm_of_cell, v5cred);
+ }
+ }
+
+ /* If the realm and cell name match, then try without an
+ * instance, but only if realm is non-empty */
+
+ if (TRYAGAIN(status) &&
+ strcasecmp(cell->name, realm_of_cell) == 0) {
+ status = get_credv5(context, AFSKEY, NULL, realm_of_cell,
+ v5cred);
+ if (!AFS_TRY_FULL_PRINC && TRYAGAIN(status)) {
+ status = get_credv5(context, AFSKEY, cell->name,
+ realm_of_cell, v5cred);
+ }
+ }
+ }
+
+ /* Try to find a service principal for this cell.
+ * Some broken MIT libraries return KRB5KRB_AP_ERR_MSG_TYPE upon
+ * the first attempt, so we try twice to be sure */
+
+ if (status == KRB5KRB_AP_ERR_MSG_TYPE && retry == 1)
+ retry++;
+ else
+ retry = 0;
+ }
+
+ if (status != 0) {
+ afs_dprintf("Kerberos error code returned by get_cred : %d\n", status);
+ fprintf(stderr, "%s: Couldn't get %s AFS tickets:\n",
+ progname, cell->name);
+ afs_com_err(progname, status, "while getting AFS tickets");
+#ifdef KRB5_CC_NOT_KTYPE
+ if (status == KRB5_CC_NOT_KTYPE) {
+ fprintf(stderr, "allow_weak_crypto may be required in the Kerberos configuration\n");
+ }
+#endif
+ status = AKLOG_KERBEROS;
+ goto out;
+ }
+
+ /* If we've got a valid ticket, and we still don't know the realm name
+ * try to figure it out from the contents of the ticket
+ */
+ if (strcmp(realm_of_cell, "") == 0) {
+ status = get_realm_from_cred(context, *v5cred, &realm_from_princ);
+ if (status) {
+ fprintf(stderr,
+ "%s: Couldn't decode ticket to determine realm for "
+ "cell %s.\n",
+ progname, cell->name);
+ } else {
+ if (realm_from_princ)
+ realm_of_cell = realm_from_princ;
+ }
+ }
+
+ /* If the realm of the user and cell differ, then we need to use the
+ * realm when we later construct the user's principal */
+ if (realm_of_cell != NULL && strcmp(realm_of_user, realm_of_cell) != 0)
+ *realmUsed = realm_of_user;
+
+out:
+ if (realm_from_princ)
+ free(realm_from_princ);
+ if (realm_of_user && *realmUsed == NULL)
+ free(realm_of_user);
+
+ return status;
+}
+
+/*!
+ * Build an rxkad token from a Kerberos ticket, using only local tools (that
+ * is, without using a 524 conversion service)
+ *
+ * @param[in] context
+ * An initialised Kerberos 5 context
+ * @param[in] v5cred
+ * A Kerberos credentials structure containing a suitable service ticket
+ * @param[out] tokenPtr
+ * An AFS token structure containing an rxkad token. This is a malloc'd
+ * structure which should be freed by the caller.
+ * @param[out[ userPtr
+ * A string containing the principal of the user to whom the token was
+ * issued. This is a malloc'd block which should be freed by the caller,
+ * if set.
+ *
+ * @returns
+ * 0 on success, an error value upon failure
+ */
+static int
+rxkad_build_native_token(krb5_context context, krb5_creds *v5cred,
+ struct ktc_tokenUnion **tokenPtr, char **userPtr) {
+ char username[BUFSIZ]="";
+ struct ktc_token token;
+ int status;
+#ifdef HAVE_NO_KRB5_524
+ char *p;
+ int len;
+#else
+ char k4name[ANAME_SZ];
+ char k4inst[INST_SZ];
+ char k4realm[REALM_SZ];
+#endif
+ void *inkey = get_cred_keydata(v5cred);
+ size_t inkey_sz = get_cred_keylen(v5cred);
+
+ afs_dprintf("Using Kerberos V5 ticket natively\n");
+
+ *tokenPtr = NULL;
+ *userPtr = NULL;
+
+#ifndef HAVE_NO_KRB5_524
+ status = krb5_524_conv_principal (context, v5cred->client,
+ (char *) &k4name,
+ (char *) &k4inst,
+ (char *) &k4realm);
+ if (status) {
+ if (!noprdb)
+ afs_com_err(progname, status,
+ "while converting principal to Kerberos V4 format");
+ } else {
+ strcpy (username, k4name);
+ if (k4inst[0]) {
+ strcat (username, ".");
+ strcat (username, k4inst);
+ }
+ }
+#else
+ len = min(get_princ_len(context, v5cred->client, 0),
+ second_comp(context, v5cred->client) ?
+ MAXKTCNAMELEN - 2 : MAXKTCNAMELEN - 1);
+ strncpy(username, get_princ_str(context, v5cred->client, 0), len);
+ username[len] = '\0';
+
+ if (second_comp(context, v5cred->client)) {
+ strcat(username, ".");
+ p = username + strlen(username);
+ len = min(get_princ_len(context, v5cred->client, 1),
+ MAXKTCNAMELEN - strlen(username) - 1);
+ strncpy(p, get_princ_str(context, v5cred->client, 1), len);
+ p[len] = '\0';
+ }
+#endif
+
+ memset(&token, 0, sizeof(struct ktc_token));
+
+ token.kvno = RXKAD_TKT_TYPE_KERBEROS_V5;
+ token.startTime = v5cred->times.starttime;;
+ token.endTime = v5cred->times.endtime;
+ if (tkt_DeriveDesKey(get_creds_enctype(v5cred), inkey, inkey_sz,
+ &token.sessionKey) != 0) {
+ return RXKADBADKEY;
+ }
+ token.ticketLen = v5cred->ticket.length;
+ memcpy(token.ticket, v5cred->ticket.data, token.ticketLen);
+
+ status = token_importRxkadViceId(tokenPtr, &token, 0);
+ if (status) {
+ return status;
+ }
+
+ if (username[0] != '\0')
+ *userPtr = strdup(username);
+
+ return 0;
+}
+
+/*!
+ * Convert a Keberos ticket to an rxkad token, using information obtained
+ * from an external Kerberos 5->4 conversion service. If the code is built
+ * with HAVE_NO_KRB5_524 then this is a stub function which will always
+ * return success without a token.
+ *
+ * @param[in] context
+ * An initialised Kerberos 5 context
+ * @param[in] v5cred
+ * A Kerberos credentials structure containing a suitable service ticket
+ * @param[out] tokenPtr
+ * An AFS token structure containing an rxkad token. This is a malloc'd
+ * structure which should be freed by the caller.
+ * @param[out[ userPtr
+ * A string containing the principal of the user to whom the token was
+ * issued. This is a malloc'd block which should be freed by the caller,
+ * if set.
+ *
+ * @returns
+ * 0 on success, an error value upon failure
+ */
+
+#ifdef HAVE_NO_KRB5_524
+static int
+rxkad_get_converted_token(krb5_context context, krb5_creds *v5cred,
+ struct ktc_tokenUnion **tokenPtr, char **userPtr) {
+ *tokenPtr = NULL;
+ *userPtr = NULL;
+
+ return 0;
+}
+#else
+static int
+rxkad_get_converted_token(krb5_context context, krb5_creds *v5cred,
+ struct ktc_tokenUnion **tokenPtr, char **userPtr) {
+ CREDENTIALS cred;
+ char username[BUFSIZ];
+ struct ktc_token token;
+ int status;
+
+ *tokenPtr = NULL;
+ *userPtr = NULL;
+
+ afs_dprintf("Using Kerberos 524 translator service\n");
+
+ status = krb5_524_convert_creds(context, v5cred, &cred);
+
+ if (status) {
+ afs_com_err(progname, status, "while converting tickets "
+ "to Kerberos V4 format");
+ return AKLOG_KERBEROS;
+ }
+
+ strcpy (username, cred.pname);
+ if (cred.pinst[0]) {
+ strcat (username, ".");
+ strcat (username, cred.pinst);
+ }
+
+ memset(&token, 0, sizeof(struct ktc_token));
+
+ token.kvno = cred.kvno;
+ token.startTime = cred.issue_date;
+ /*
+ * It seems silly to go through a bunch of contortions to
+ * extract the expiration time, when the v5 credentials already
+ * has the exact time! Let's use that instead.
+ *
+ * Note that this isn't a security hole, as the expiration time
+ * is also contained in the encrypted token
+ */
+ token.endTime = v5cred->times.endtime;
+ memcpy(&token.sessionKey, cred.session, 8);
+ token.ticketLen = cred.ticket_st.length;
+ memcpy(token.ticket, cred.ticket_st.dat, token.ticketLen);
+
+ status = token_importRxkadViceId(tokenPtr, &token, 0);
+ if (status) {
+ return status;
+ }
+
+ *userPtr = strdup(username);
+
+ return 0;
+}
+#endif
+
+/*!
+ * This function gets an rxkad token for a given cell.
+ *
+ * @param[in] context
+ * An initialized Kerberos v5 context
+ * @param[in] cell
+ * The cell information for the cell which we're obtaining a token for
+ * @param[in] realm
+ * The realm to look in for the service principal. If NULL, then the
+ * realm is determined from the cell name or the user's credentials
+ * (see the documentation for rxkad_get_ticket)
+ * @param[out] token
+ * The rxkad token produced. This is a malloc'd structure which should
+ * be freed by the caller.
+ * @parma[out] authuser
+ * A string containing the principal of the user to whom the token was
+ * issued. This is a malloc'd block which should be freed by the caller,
+ * if set.
+ * @param[out] foreign
+ * Whether the user is considered as 'foreign' to the realm of the cell.
+ *
+ * @returns
+ * 0 on success, an error value upon failuer
+ */
+static int
+rxkad_get_token(krb5_context context, struct afsconf_cell *cell, char *realm,
+ struct ktc_tokenUnion **token, char **authuser, int *foreign) {
+ krb5_creds *v5cred = NULL;
+ char *realmUsed = NULL;
+ char *username = NULL;
+ int status;
+
+ *token = NULL;
+ *authuser = NULL;
+ *foreign = 0;
+
+ status = rxkad_get_ticket(context, realm, cell, &v5cred, &realmUsed);
+ if (status)
+ goto out;
+
+ if (do524)
+ status = rxkad_get_converted_token(context, v5cred, token, &username);
+ else
+ status = rxkad_build_native_token(context, v5cred, token, &username);
+
+ if (status)
+ goto out;
+
+ /* We now have the username, plus the realm name, so stitch them together
+ * to give us the name that the ptserver will know the user by */
+ if (realmUsed == NULL || username == NULL) {
+ *authuser = username;
+ username = NULL;
+ *foreign = 0;
+ } else {
+ if (asprintf(authuser, "%s@%s", username, realmUsed) < 0) {
+ fprintf(stderr, "%s: Out of memory building PTS name\n", progname);
+ *authuser = NULL;
+ status = AKLOG_MISC;
+ goto out;
+ }
+ *foreign = 1;
+ }
+
+out:
+ if (realmUsed)
+ free(realmUsed);
+ if (username)
+ free(username);
+ if (v5cred)
+ krb5_free_creds(context, v5cred);
+
+ return status;
+}
+
+/*
+ * Log to a cell. If the cell has already been logged to, return without
+ * doing anything. Otherwise, log to it and mark that it has been logged
+ * to.
+ */
+static int
+auth_to_cell(krb5_context context, const char *config,
+ char *cell, char *realm, char **linkedcell)
{
- aklog(argc, argv);
- exit(0);
+ int status = AKLOG_SUCCESS;
+ int isForeign = 0;
+ char *username = NULL; /* To hold client username structure */
+ afs_int32 viceId; /* AFS uid of user */
+
+ char *local_cell = NULL;
+ struct ktc_tokenUnion *rxkadToken = NULL;
+ struct ktc_setTokenData *token;
+ struct ktc_setTokenData *btoken = NULL;
+ struct afsconf_cell cellconf;
+
+ /* NULL or empty cell returns information on local cell */
+ if ((status = get_cellconfig(config, cell, &cellconf, &local_cell)))
+ return(status);
+
+ if (linkedcell != NULL) {
+ if (cellconf.linkedCell != NULL) {
+ *linkedcell = strdup(cellconf.linkedCell);
+ if (*linkedcell == NULL) {
+ status = ENOMEM;
+ goto out;
+ }
+ } else {
+ *linkedcell = NULL;
+ }
+ }
+
+ if (ll_string(&authedcells, ll_s_check, cellconf.name)) {
+ afs_dprintf("Already authenticated to %s (or tried to)\n", cellconf.name);
+ status = AKLOG_SUCCESS;
+ goto out;
+ }
+
+ /*
+ * Record that we have attempted to log to this cell. We do this
+ * before we try rather than after so that we will not try
+ * and fail repeatedly for one cell.
+ */
+ ll_string(&authedcells, ll_s_add, cellconf.name);
+
+ /*
+ * Record this cell in the list of zephyr subscriptions. We may
+ * want zephyr subscriptions even if authentication fails.
+ * If this is done after we attempt to get tokens, aklog -zsubs
+ * can return something different depending on whether or not we
+ * are in -noauth mode.
+ */
+ if (ll_string(&zsublist, ll_s_add, cellconf.name) == LL_FAILURE) {
+ fprintf(stderr,
+ "%s: failure adding cell %s to zephyr subscriptions list.\n",
+ progname, cellconf.name);
+ exit(AKLOG_MISC);
+ }
+ if (ll_string(&zsublist, ll_s_add, local_cell) == LL_FAILURE) {
+ fprintf(stderr,
+ "%s: failure adding cell %s to zephyr subscriptions list.\n",
+ progname, local_cell);
+ exit(AKLOG_MISC);
+ }
+
+ if (!noauth) {
+ afs_dprintf("Authenticating to cell %s (server %s).\n", cellconf.name,
+ cellconf.hostName[0]);
+
+ token = token_buildTokenJar(cellconf.name);
+ if (token == NULL) {
+ status = ENOMEM;
+ goto out;
+ }
+
+ status = rxkad_get_token(context, &cellconf, realm, &rxkadToken,
+ &username, &isForeign);
+ if (status)
+ goto out;
+
+ /* We need to keep the token structure around so that we can stick
+ * the viceId into it (once we know it) */
+ status = token_addToken(token, rxkadToken);
+ if (status) {
+ afs_dprintf("Add Token failed with %d", status);
+ goto out;
+ }
+
+ if (!force &&
+ ktc_GetTokenEx(cellconf.name, &btoken) == 0 &&
+ token_SetsEquivalent(token, btoken)) {
+
+ token_FreeSet(&btoken);
+ afs_dprintf("Identical tokens already exist; skipping.\n");
+ status = AKLOG_SUCCESS;
+ goto out;
+ }
+
+ if (btoken)
+ token_FreeSet(&btoken);
+
+#ifdef FORCE_NOPRDB
+ noprdb = 1;
+#endif
+
+ if (username == NULL) {
+ afs_dprintf("Not resolving name to id\n");
+ }
+ else if (noprdb) {
+ afs_dprintf("Not resolving name %s to id (-noprdb set)\n", username);
+ }
+ else {
+ afs_dprintf("About to resolve name %s to id in cell %s.\n", username,
+ cellconf.name);
+
+ if (!pr_Initialize (0, AFSDIR_CLIENT_ETC_DIRPATH, cellconf.name))
+ status = pr_SNameToId (username, &viceId);
+
+ if (status)
+ afs_dprintf("Error %d\n", status);
+ else
+ afs_dprintf("Id %d\n", (int) viceId);
+
+
+ /*
+ * This code is taken from cklog -- it lets people
+ * automatically register with the ptserver in foreign cells
+ */
+
+#ifdef ALLOW_REGISTER
+ if ((status == 0) && (viceId == ANONYMOUSID) && isForeign) {
+ afs_dprintf("doing first-time registration of %s at %s\n",
+ username, cellconf.name);
+ viceId = 0;
+
+ status = ktc_SetTokenEx(token);
+ if (status) {
+ afs_com_err(progname, status,
+ "while obtaining tokens for cell %s",
+ cellconf.name);
+ status = AKLOG_TOKEN;
+ }
+
+ /*
+ * In case you're wondering, we don't need to change the
+ * filename here because we're still connecting to the
+ * same cell -- we're just using a different authenticat ion
+ * level
+ */
+
+ if ((status = pr_Initialize(1L, AFSDIR_CLIENT_ETC_DIRPATH,
+ cellconf.name))) {
+ printf("Error %d\n", status);
+ }
+
+ if ((status = pr_CreateUser(username, &viceId))) {
+ fprintf(stderr, "%s: %s so unable to create remote PTS "
+ "user %s in cell %s (status: %d).\n", progname,
+ afs_error_message(status), username, cellconf.name,
+ status);
+ viceId = ANONYMOUSID;
+ } else {
+ printf("created cross-cell entry for %s (Id %d) at %s\n",
+ username, viceId, cellconf.name);
+ }
+ }
+#endif /* ALLOW_REGISTER */
+
+ if ((status == 0) && (viceId != ANONYMOUSID)) {
+ status = token_setRxkadViceId(rxkadToken, viceId);
+ if (status) {
+ fprintf(stderr, "Error %d setting rxkad ViceId\n", status);
+ status = AKLOG_SUCCESS;
+ } else {
+ token_replaceToken(token, rxkadToken);
+ }
+ }
+ }
+
+ if (username) {
+ afs_dprintf("Setting tokens. %s @ %s\n",
+ username, cellconf.name);
+ } else {
+ afs_dprintf("Setting tokens for cell %s\n", cellconf.name);
+ }
+
+#if defined(AFS_AIX_ENV) && !defined(AFS_AIX51_ENV)
+ /* on AIX 4.1.4 with AFS 3.4a+ if a write is not done before
+ * this routine, it will not add the token. It is not clear what
+ * is going on here! So we will do the following operation.
+ * On AIX 5, it causes the parent program to die, so we won't.
+ * We don't care about the return value, but need to collect it
+ * to avoid compiler warnings.
+ */
+ if (write(2,"",0) < 0) {
+ /* dummy write, don't care */
+ }
+#endif
+ token_setPag(token, afssetpag);
+ status = ktc_SetTokenEx(token);
+ if (status) {
+ afs_com_err(progname, status, "while setting tokens for cell %s",
+ cellconf.name);
+ status = AKLOG_TOKEN;
+ }
+ }
+ else
+ afs_dprintf("Noauth mode; not authenticating.\n");
+
+out:
+ if (rxkadToken) {
+ token_freeToken(&rxkadToken);
+ }
+
+ if (local_cell)
+ free(local_cell);
+ if (username)
+ free(username);
+
+ return(status);
}
-#else /* WINDOWS */
+static int
+get_afs_mountpoint(char *file, char *mountpoint, int size)
+{
+#ifdef AFS_SUN_ENV
+ char V ='V'; /* AFS has problem on Sun with pioctl */
+#endif
+ char our_file[MAXPATHLEN + 1];
+ char *parent_dir;
+ char *last_component;
+ struct ViceIoctl vio;
+ char cellname[BUFSIZ];
+
+ strlcpy(our_file, file, sizeof(our_file));
+
+ if ((last_component = strrchr(our_file, DIR))) {
+ *last_component++ = 0;
+ parent_dir = our_file;
+ }
+ else {
+ last_component = our_file;
+ parent_dir = ".";
+ }
+
+ memset(cellname, 0, sizeof(cellname));
+
+ vio.in = last_component;
+ vio.in_size = strlen(last_component)+1;
+ vio.out_size = size;
+ vio.out = mountpoint;
+
+ if (!pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &vio, 0)) {
+ if (strchr(mountpoint, VOLMARKER) == NULL) {
+ vio.in = file;
+ vio.in_size = strlen(file) + 1;
+ vio.out_size = sizeof(cellname);
+ vio.out = cellname;
+
+ if (!pioctl(file, VIOC_FILE_CELL_NAME, &vio, 1)) {
+ strlcat(cellname, VOLMARKERSTRING, sizeof(cellname));
+ strlcat(cellname, mountpoint + 1, sizeof(cellname));
+ memset(mountpoint + 1, 0, size - 1);
+ strcpy(mountpoint + 1, cellname);
+ }
+ }
+ return(TRUE);
+ }
+ else
+ return(FALSE);
+}
+
+/*
+ * This routine each time it is called returns the next directory
+ * down a pathname. It resolves all symbolic links. The first time
+ * it is called, it should be called with the name of the path
+ * to be descended. After that, it should be called with the arguemnt
+ * NULL.
+ */
+static char *
+next_path(char *origpath)
+{
+ static char path[MAXPATHLEN + 1];
+ static char pathtocheck[MAXPATHLEN + 1];
+
+ ssize_t link; /* Return value from readlink */
+ char linkbuf[MAXPATHLEN + 1];
+ char tmpbuf[MAXPATHLEN + 1];
+
+ static char *last_comp; /* last component of directory name */
+ static char *elast_comp; /* End of last component */
+ char *t;
+ int len;
+
+ static int symlinkcount = 0; /* We can't exceed MAXSYMLINKS */
+
+ /* If we are given something for origpath, we are initializing only. */
+ if (origpath) {
+ memset(path, 0, sizeof(path));
+ memset(pathtocheck, 0, sizeof(pathtocheck));
+ strlcpy(path, origpath, sizeof(path));
+ last_comp = path;
+ symlinkcount = 0;
+ return(NULL);
+ }
-#include <windows.h>
-#include <windowsx.h>
+ /* We were not given origpath; find then next path to check */
-static void parse_cmdline();
+ /* If we've gotten all the way through already, return NULL */
+ if (last_comp == NULL)
+ return(NULL);
+ do {
+ while (*last_comp == DIR)
+ strncat(pathtocheck, last_comp++, 1);
+ len = (elast_comp = strchr(last_comp, DIR))
+ ? elast_comp - last_comp : strlen(last_comp);
+ strncat(pathtocheck, last_comp, len);
+ memset(linkbuf, 0, sizeof(linkbuf));
+ link = readlink(pathtocheck, linkbuf, sizeof(linkbuf)-1);
-int PASCAL
-WinMain(HINSTANCE hinst, HINSTANCE hprevinstance, LPSTR cmdline, int noshow)
+ if (link > 0) {
+ linkbuf[link] = '\0'; /* NUL terminate string */
+
+ if (++symlinkcount > MAXSYMLINKS) {
+ fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
+ exit(AKLOG_BADPATH);
+ }
+
+ memset(tmpbuf, 0, sizeof(tmpbuf));
+ if (elast_comp)
+ strlcpy(tmpbuf, elast_comp, sizeof(tmpbuf));
+ if (linkbuf[0] == DIR) {
+ /*
+ * If this is a symbolic link to an absolute path,
+ * replace what we have by the absolute path.
+ */
+ memset(path, 0, strlen(path));
+ memcpy(path, linkbuf, sizeof(linkbuf));
+ strcat(path, tmpbuf);
+ last_comp = path;
+ elast_comp = NULL;
+ memset(pathtocheck, 0, sizeof(pathtocheck));
+ }
+ else {
+ /*
+ * If this is a symbolic link to a relative path,
+ * replace only the last component with the link name.
+ */
+ strncpy(last_comp, linkbuf, strlen(linkbuf) + 1);
+ strcat(path, tmpbuf);
+ elast_comp = NULL;
+ if ((t = strrchr(pathtocheck, DIR))) {
+ t++;
+ memset(t, 0, strlen(t));
+ }
+ else
+ memset(pathtocheck, 0, sizeof(pathtocheck));
+ }
+ }
+ else
+ last_comp = elast_comp;
+ }
+ while(link > 0);
+
+ return(pathtocheck);
+}
+
+static void
+add_hosts(char *file)
{
- int argc = 0;
- char **argv;
+#ifdef AFS_SUN_ENV
+ char V = 'V'; /* AFS has problem on SunOS */
+#endif
+ struct ViceIoctl vio;
+ char outbuf[BUFSIZ];
+ long *phosts;
+ int i;
+ struct hostent *hp;
+ struct in_addr in;
+
+ memset(outbuf, 0, sizeof(outbuf));
- aklog_params params;
+ vio.out_size = sizeof(outbuf);
+ vio.in_size = 0;
+ vio.out = outbuf;
- parse_cmdline(cmdline, &argv, &argc);
+ afs_dprintf("Getting list of hosts for %s\n", file);
- aklog(argc, argv, ¶ms);
+ /* Don't worry about errors. */
+ if (!pioctl(file, VIOCWHEREIS, &vio, 1)) {
+ phosts = (long *) outbuf;
- return 0;
+ /*
+ * Lists hosts that we care about. If ALLHOSTS is defined,
+ * then all hosts that you ever may possible go through are
+ * included in this list. If not, then only hosts that are
+ * the only ones appear. That is, if a volume you must use
+ * is replaced on only one server, that server is included.
+ * If it is replicated on many servers, then none are included.
+ * This is not perfect, but the result is that people don't
+ * get subscribed to a lot of instances of FILSRV that they
+ * probably won't need which reduces the instances of
+ * people getting messages that don't apply to them.
+ */
+#ifndef ALLHOSTS
+ if (phosts[1] != '\0')
+ return;
+#endif
+ for (i = 0; phosts[i]; i++) {
+ if (hosts) {
+ in.s_addr = phosts[i];
+ afs_dprintf("Got host %s\n", inet_ntoa(in));
+ ll_string(&hostlist, ll_s_add, (char *)inet_ntoa(in));
+ }
+ if (zsubs && (hp=gethostbyaddr((char *) &phosts[i],sizeof(long),AF_INET))) {
+ afs_dprintf("Got host %s\n", hp->h_name);
+ ll_string(&zsublist, ll_s_add, hp->h_name);
+ }
+ }
+ }
}
/*
- * Generate agrv/argc here from command line.
- * Note that windows doesn't pass us the executible name, so
- * we need to fill that in manually.
+ * This routine descends through a path to a directory, logging to
+ * every cell it encounters along the way.
*/
+static int
+auth_to_path(krb5_context context, const char *config, char *path)
+{
+ int status = AKLOG_SUCCESS;
+ int auth_status = AKLOG_SUCCESS;
+
+ char *nextpath;
+ char pathtocheck[MAXPATHLEN + 1];
+ char mountpoint[MAXPATHLEN + 1];
+ char *cell;
+ char *endofcell;
+
+ u_char isdirectory;
+
+ /* Initialize */
+ if (path[0] == DIR)
+ strlcpy(pathtocheck, path, sizeof(pathtocheck));
+ else {
+ if (getcwd(pathtocheck, sizeof(pathtocheck)) == NULL) {
+ fprintf(stderr, "Unable to find current working directory:\n");
+ fprintf(stderr, "%s\n", pathtocheck);
+ fprintf(stderr, "Try an absolute pathname.\n");
+ exit(AKLOG_BADPATH);
+ }
+ else {
+ strlcat(pathtocheck, DIRSTRING, sizeof(pathtocheck));
+ strlcat(pathtocheck, path, sizeof(pathtocheck));
+ }
+ }
+ next_path(pathtocheck);
+
+ /* Go on to the next level down the path */
+ while ((nextpath = next_path(NULL))) {
+ strlcpy(pathtocheck, nextpath, sizeof(pathtocheck));
+ afs_dprintf("Checking directory %s\n", pathtocheck);
+ /*
+ * If this is an afs mountpoint, determine what cell from
+ * the mountpoint name which is of the form
+ * #cellname:volumename or %cellname:volumename.
+ */
+ if (get_afs_mountpoint(pathtocheck, mountpoint, sizeof(mountpoint))) {
+ /* skip over the '#' or '%' */
+ cell = mountpoint + 1;
+ /* Add this (cell:volumename) to the list of zsubs */
+ if (zsubs)
+ ll_string(&zsublist, ll_s_add, cell);
+ if (zsubs || hosts)
+ add_hosts(pathtocheck);
+ if ((endofcell = strchr(mountpoint, VOLMARKER))) {
+ *endofcell = '\0';
+ auth_status = auth_to_cell(context, config, cell, NULL, NULL);
+ if (auth_status) {
+ if (status == AKLOG_SUCCESS)
+ status = auth_status;
+ else if (status != auth_status)
+ status = AKLOG_SOMETHINGSWRONG;
+ }
+ }
+ }
+ else {
+ if (isdir(pathtocheck, &isdirectory) < 0) {
+ /*
+ * If we've logged and still can't stat, there's
+ * a problem...
+ */
+ fprintf(stderr, "%s: stat(%s): %s\n", progname,
+ pathtocheck, strerror(errno));
+ return(AKLOG_BADPATH);
+ }
+ else if (! isdirectory) {
+ /* Allow only directories */
+ fprintf(stderr, "%s: %s: %s\n", progname, pathtocheck,
+ strerror(ENOTDIR));
+ return(AKLOG_BADPATH);
+ }
+ }
+ }
+
+
+ return(status);
+}
+
+
+/* Print usage message and exit */
static void
-parse_cmdline(char *cmdline, char ***pargv, int *pargc)
+usage(void)
+{
+ fprintf(stderr, "\nUsage: %s %s%s%s\n", progname,
+ "[-d] [[-cell | -c] cell [-k krb_realm]] ",
+ "[[-p | -path] pathname]\n",
+ " [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
+ " [-linked] [-insecure_des]"
+#ifndef HAVE_NO_KRB5_524
+ " [-524]"
+#endif
+ "\n");
+ fprintf(stderr, " -d gives debugging information.\n");
+ fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
+ fprintf(stderr, " pathname is the name of a directory to which ");
+ fprintf(stderr, "you wish to authenticate.\n");
+ fprintf(stderr, " -zsubs gives zephyr subscription information.\n");
+ fprintf(stderr, " -hosts gives host address information.\n");
+ fprintf(stderr, " -noauth does not attempt to get tokens.\n");
+ fprintf(stderr, " -noprdb means don't try to determine AFS ID.\n");
+ fprintf(stderr, " -force means replace identical tickets. \n");
+ fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
+ fprintf(stderr, " -setpag set the AFS process authentication group.\n");
+#ifndef HAVE_NO_KRB5_524
+ fprintf(stderr, " -524 means use the 524 converter instead of V5 directly\n");
+#endif
+ fprintf(stderr, " -insecure_des enables insecure single-DES for krb5.\n");
+ fprintf(stderr, " No commandline arguments means ");
+ fprintf(stderr, "authenticate to the local cell.\n");
+ fprintf(stderr, "\n");
+ exit(AKLOG_USAGE);
+}
+
+int
+main(int argc, char *argv[])
{
- char **argv;
- int argc = 0;
- char *arg, *sep = " \t";
- int argv_size = 10; /* to start with */
+ krb5_context context;
+ int status = AKLOG_SUCCESS;
+ int i;
+ int somethingswrong = FALSE;
+ int insecure_des = 0;
+
+ cellinfo_t cellinfo;
+
+ extern char *progname; /* Name of this program */
+
+ int cmode = FALSE; /* Cellname mode */
+ int pmode = FALSE; /* Path name mode */
+
+ char realm[REALM_SZ]; /* Kerberos realm of afs server */
+ char cell[BUFSIZ]; /* Cell to which we are authenticating */
+ char path[MAXPATHLEN + 1]; /* Path length for path mode */
+
+ linked_list cells; /* List of cells to log to */
+ linked_list paths; /* List of paths to log to */
+ ll_node *cur_node;
+ char *linkedcell;
+ const char *config = AFSDIR_CLIENT_ETC_DIRPATH;
+ memset(&cellinfo, 0, sizeof(cellinfo));
- argv = malloc(argv_size * sizeof(char *));
+ memset(realm, 0, sizeof(realm));
+ memset(cell, 0, sizeof(cell));
+ memset(path, 0, sizeof(path));
- if (!argv) {
- MessageBox(NULL, "Fatal Error: Out of memory", AKLOG_DIALOG_NAME,
- MB_OK | MB_ICONSTOP);
- exit(1);
+ ll_init(&cells);
+ ll_init(&paths);
+
+ ll_init(&zsublist);
+ ll_init(&hostlist);
+
+ /* Store the program name here for error messages */
+ if ((progname = strrchr(argv[0], DIR)))
+ progname++;
+ else
+ progname = argv[0];
+
+#if defined(KRB5_PROG_ETYPE_NOSUPP) && !(defined(HAVE_KRB5_ENCTYPE_ENABLE) || defined(HAVE_KRB5_ALLOW_WEAK_CRYPTO))
+ {
+ char *filepath = NULL, *newpath = NULL;
+#ifndef AFS_DARWIN_ENV
+ char *defaultpath = "/etc/krb5.conf:/etc/krb5/krb5.conf";
+#else
+ char *defaultpath = "~/Library/Preferences/edu.mit.Kerberos:/Library/Preferences/edu.mit.Kerberos";
+#endif
+ filepath = getenv("KRB5_CONFIG");
+
+ /* only fiddle with KRB5_CONFIG if krb5-weak.conf actually exists */
+ if (asprintf(&newpath, "%s/krb5-weak.conf",
+ AFSDIR_CLIENT_ETC_DIRPATH) < 0)
+ newpath = NULL;
+ if (newpath != NULL && access(newpath, R_OK) == 0) {
+ free(newpath);
+ newpath = NULL;
+ if (asprintf(&newpath, "%s:%s/krb5-weak.conf",
+ filepath ? filepath : defaultpath,
+ AFSDIR_CLIENT_ETC_DIRPATH) < 0)
+ newpath = NULL;
+ else
+ setenv("KRB5_CONFIG", newpath, 1);
}
+#endif
+ krb5_init_context(&context);
- argv[argc++] = "aklog";
+#if defined(KRB5_PROG_ETYPE_NOSUPP) && !(defined(HAVE_KRB5_ENCTYPE_ENABLE) || defined(HAVE_KRB5_ALLOW_WEAK_CRYPTO))
+ if (newpath)
+ free(newpath);
+ if (filepath)
+ setenv("KRB5_CONFIG", filepath, 1);
+ else
+ unsetenv("KRB5_CONFIG");
+ }
+#endif
+ initialize_KTC_error_table ();
+ initialize_U_error_table();
+ initialize_RXK_error_table();
+ initialize_ACFG_error_table();
+ initialize_PT_error_table();
+ afs_set_com_err_hook(redirect_errors);
- arg = strtok(cmdline, sep);
+ /* Initialize list of cells to which we have authenticated */
+ ll_init(&authedcells);
- while(arg) {
- argv[argc] = strdup(arg);
+ /* Parse commandline arguments and make list of what to do. */
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-d") == 0)
+ dflag++;
+ else if (strcmp(argv[i], "-noauth") == 0)
+ noauth++;
+ else if (strcmp(argv[i], "-zsubs") == 0)
+ zsubs++;
+ else if (strcmp(argv[i], "-hosts") == 0)
+ hosts++;
+ else if (strcmp(argv[i], "-noprdb") == 0)
+ noprdb++;
+ else if (strcmp(argv[i], "-linked") == 0)
+ linked++;
+ else if (strcmp(argv[i], "-force") == 0)
+ force++;
+#ifndef HAVE_NO_KRB5_524
+ else if (strcmp(argv[i], "-524") == 0)
+ do524++;
+#endif
+ else if (strcmp(argv[i], "-setpag") == 0)
+ afssetpag++;
+ else if (((strcmp(argv[i], "-cell") == 0) ||
+ (strcmp(argv[i], "-c") == 0)) && !pmode)
+ if (++i < argc) {
+ cmode++;
+ strlcpy(cell, argv[i], sizeof(cell));
+ }
+ else
+ usage();
+ else if ((strcmp(argv[i], "-keytab") == 0))
+ if (++i < argc) {
+ keytab = argv[i];
+ }
+ else
+ usage();
+ else if ((strcmp(argv[i], "-token-lifetime") == 0))
+ if (++i < argc) {
+ status = util_GetInt32(argv[i], &akimp_lifetime);
+ if (status) {
+ fprintf(stderr,
+ "%s: invalid value specified for token-lifetime.\n",
+ progname);
+ exit(AKLOG_MISC);
+ }
- if (!argv[argc]) {
- MessageBox(NULL, "Fatal Error: Out of memory", AKLOG_DIALOG_NAME,
- MB_OK | MB_ICONSTOP);
- exit(1);
+ if (akimp_lifetime < 0 || akimp_lifetime > AKIMP_LIFETIME_MAX) {
+ fprintf(stderr,
+ "%s: token-lifetime must be within 0 and %d hrs.\n",
+ progname, AKIMP_LIFETIME_MAX);
+ exit(AKLOG_MISC);
+ }
+
+ akimp_lifetime = akimp_lifetime * 60 * 60;
+ akimplifetime_present = TRUE;
+ }
+ else
+ usage();
+ else if ((strcmp(argv[i], "-principal") == 0))
+ if (++i < argc) {
+ client = argv[i];
+ }
+ else
+ usage();
+ else if (((strcmp(argv[i], "-path") == 0) ||
+ (strcmp(argv[i], "-p") == 0)) && !cmode)
+ if (++i < argc) {
+ pmode++;
+ strlcpy(path, argv[i], sizeof(path));
+ }
+ else
+ usage();
+ else if (strcmp(argv[i], "-config") == 0)
+ if (++i < argc) {
+ config = argv[i];
+ }
+ else
+ usage();
+ else if (strcmp(argv[i], "-insecure_des") == 0)
+ insecure_des = 1;
+ else if (argv[i][0] == '-')
+ usage();
+ else if (!pmode && !cmode) {
+ if (strchr(argv[i], DIR) || (strcmp(argv[i], ".") == 0) ||
+ (strcmp(argv[i], "..") == 0)) {
+ pmode++;
+ strlcpy(path, argv[i], sizeof(path));
+ }
+ else {
+ cmode++;
+ strlcpy(cell, argv[i], sizeof(cell));
+ }
+ }
+ else
+ usage();
+
+ /*
+ * Enable DES enctypes if requested. This is not required when rxkad-k5
+ * is used, but some sites may not have updated.
+ * krb5_allow_weak_crypto is MIT Kerberos 1.8. krb5_enctype_enable is
+ * Heimdal.
+ */
+ if (insecure_des) {
+#if defined(HAVE_KRB5_ENCTYPE_ENABLE)
+ i = krb5_enctype_valid(context, ETYPE_DES_CBC_CRC);
+ if (i)
+ krb5_enctype_enable(context, ETYPE_DES_CBC_CRC);
+#elif defined(HAVE_KRB5_ALLOW_WEAK_CRYPTO)
+ krb5_allow_weak_crypto(context, 1);
+#else
+ fprintf(stderr,
+ "%s: -insecure_des is not supported by this libkrb5\n", progname);
+ exit(AKLOG_MISC);
+#endif
+ }
+
+ if (cmode) {
+ if (((i + 1) < argc) && (strcmp(argv[i + 1], "-k") == 0)) {
+ i+=2;
+ if (i < argc)
+ strlcpy(realm, argv[i], sizeof(realm));
+ else
+ usage();
+ }
+ /* Add this cell to list of cells */
+ strcpy(cellinfo.cell, cell);
+ strcpy(cellinfo.realm, realm);
+ if ((cur_node = ll_add_node(&cells, ll_tail))) {
+ char *new_cellinfo;
+ if ((new_cellinfo = copy_cellinfo(&cellinfo)))
+ ll_add_data(cur_node, new_cellinfo);
+ else {
+ fprintf(stderr,
+ "%s: failure copying cellinfo.\n", progname);
+ exit(AKLOG_MISC);
+ }
+ }
+ else {
+ fprintf(stderr, "%s: failure adding cell to cells list.\n",
+ progname);
+ exit(AKLOG_MISC);
+ }
+ memset(&cellinfo, 0, sizeof(cellinfo));
+ cmode = FALSE;
+ memset(cell, 0, sizeof(cell));
+ memset(realm, 0, sizeof(realm));
+ }
+ else if (pmode) {
+ /* Add this path to list of paths */
+ if ((cur_node = ll_add_node(&paths, ll_tail))) {
+ char *new_path;
+ if ((new_path = strdup(path)))
+ ll_add_data(cur_node, new_path);
+ else {
+ fprintf(stderr, "%s: failure copying path name.\n",
+ progname);
+ exit(AKLOG_MISC);
}
+ }
+ else {
+ fprintf(stderr, "%s: failure adding path to paths list.\n",
+ progname);
+ exit(AKLOG_MISC);
+ }
+ pmode = FALSE;
+ memset(path, 0, sizeof(path));
+ }
+ }
+
+ if (akimplifetime_present && !keytab) {
+ fprintf(stderr,
+ "%s: -token-lifetime is valid only if -keytab is specified.\n",
+ progname);
+ exit(AKLOG_MISC);
+ }
+
+ /* If nothing was given, log to the local cell. */
+ if ((cells.nelements + paths.nelements) == 0) {
+ struct passwd *pwd;
+
+ status = auth_to_cell(context, config, NULL, NULL, &linkedcell);
+
+ /* If this cell is linked to a DCE cell, and user requested -linked,
+ * get tokens for both. This is very useful when the AFS cell is
+ * linked to a DFS cell and this system does not also have DFS.
+ */
+
+ if (!status && linked && linkedcell != NULL) {
+ afs_dprintf("Linked cell: %s\n", linkedcell);
+ status = auth_to_cell(context, config, linkedcell, NULL, NULL);
+ }
+ if (linkedcell) {
+ free(linkedcell);
+ linkedcell = NULL;
+ }
+
+ /*
+ * Local hack - if the person has a file in their home
+ * directory called ".xlog", read that for a list of
+ * extra cells to authenticate to
+ */
+
+ if ((pwd = getpwuid(getuid())) != NULL) {
+ struct stat sbuf;
+ FILE *f;
+ char fcell[100], xlog_path[512];
+
+ strlcpy(xlog_path, pwd->pw_dir, sizeof(xlog_path));
+ strlcat(xlog_path, "/.xlog", sizeof(xlog_path));
- argc++;
+ if ((stat(xlog_path, &sbuf) == 0) &&
+ ((f = fopen(xlog_path, "r")) != NULL)) {
- if (argc == argv_size) {
- argv_size += 10;
- argv = realloc(argv, argv_size * sizeof(char *));
+ afs_dprintf("Reading %s for cells to authenticate to.\n",
+ xlog_path);
- if (!argv) {
- MessageBox(NULL, "Fatal Error: Out of memory",
- AKLOG_DIALOG_NAME,
- MB_OK | MB_ICONSTOP);
- exit(1);
- }
+ while (fgets(fcell, 100, f) != NULL) {
+ int auth_status;
+
+ fcell[strlen(fcell) - 1] = '\0';
+
+ afs_dprintf("Found cell %s in %s.\n", fcell, xlog_path);
+
+ auth_status = auth_to_cell(context, config, fcell, NULL, NULL);
+ if (status == AKLOG_SUCCESS)
+ status = auth_status;
+ else
+ status = AKLOG_SOMETHINGSWRONG;
+ }
+ }
+ }
+ }
+ else {
+ /* Log to all cells in the cells list first */
+ for (cur_node = cells.first; cur_node; cur_node = cur_node->next) {
+ memcpy((char *)&cellinfo, cur_node->data, sizeof(cellinfo));
+ status = auth_to_cell(context, config, cellinfo.cell,
+ cellinfo.realm, &linkedcell);
+ if (status) {
+ somethingswrong++;
+ } else {
+ if (linked && linkedcell != NULL) {
+ afs_dprintf("Linked cell: %s\n", linkedcell);
+ status = auth_to_cell(context, config, linkedcell,
+ cellinfo.realm, NULL);
+ if (status)
+ somethingswrong++;
+ }
+ if (linkedcell != NULL) {
+ free(linkedcell);
+ linkedcell = NULL;
}
+ }
+ }
+
+ /* Then, log to all paths in the paths list */
+ for (cur_node = paths.first; cur_node; cur_node = cur_node->next) {
+ status = auth_to_path(context, config, cur_node->data);
+ if (status)
+ somethingswrong++;
+ }
+
+ /*
+ * If only one thing was logged to, we'll return the status
+ * of the single call. Otherwise, we'll return a generic
+ * something failed status.
+ */
+ if (somethingswrong && ((cells.nelements + paths.nelements) > 1))
+ status = AKLOG_SOMETHINGSWRONG;
+ }
+
+ /* If we are keeping track of zephyr subscriptions, print them. */
+ if (zsubs)
+ for (cur_node = zsublist.first; cur_node; cur_node = cur_node->next) {
+ printf("zsub: %s\n", cur_node->data);
+ }
+
+ /* If we are keeping track of host information, print it. */
+ if (hosts)
+ for (cur_node = hostlist.first; cur_node; cur_node = cur_node->next) {
+ printf("host: %s\n", cur_node->data);
+ }
+
+ exit(status);
+}
+
+static int
+isdir(char *path, unsigned char *val)
+{
+ struct stat statbuf;
+
+ if (lstat(path, &statbuf) < 0)
+ return (-1);
+ else {
+ if ((statbuf.st_mode & S_IFMT) == S_IFDIR)
+ *val = TRUE;
+ else
+ *val = FALSE;
+ return (0);
+ }
+}
+
+static krb5_error_code
+get_credv5_akimpersonate(krb5_context context,
+ char* keytab,
+ krb5_principal service_principal,
+ krb5_principal client_principal,
+ time_t starttime,
+ time_t endtime,
+ int *paddress,
+ krb5_creds** out_creds /* out */ )
+{
+#if defined(USING_HEIMDAL) || (defined(HAVE_ENCODE_KRB5_ENC_TKT_PART) && defined(HAVE_ENCODE_KRB5_TICKET) && defined(HAVE_KRB5_C_ENCRYPT))
+ krb5_error_code code;
+ krb5_keytab kt = 0;
+ krb5_keytab_entry entry[1];
+ krb5_ccache cc = 0;
+ krb5_creds *creds = 0;
+ krb5_enctype enctype;
+ krb5_kvno kvno;
+ krb5_keyblock session_key[1];
+#if USING_HEIMDAL
+ Ticket ticket_reply[1];
+ EncTicketPart enc_tkt_reply[1];
+ krb5_address address[30];
+ krb5_addresses faddr[1];
+ unsigned int temp_vno[1];
+ time_t temp_time[2];
+#else
+ krb5_ticket ticket_reply[1];
+ krb5_enc_tkt_part enc_tkt_reply[1];
+ krb5_address address[30], *faddr[30];
+ krb5_data * temp;
+#endif
+ int i;
+ *out_creds = 0;
+ if (!(creds = malloc(sizeof *creds))) {
+ code = ENOMEM;
+ goto cleanup;
+ }
+
+ cc = 0;
+ enctype = 0; /* AKIMPERSONATE_IGNORE_ENCTYPE */
+ kvno = 0; /* AKIMPERSONATE_IGNORE_VNO */
+ memset((char*)creds, 0, sizeof *creds);
+ memset((char*)entry, 0, sizeof *entry);
+ memset((char*)session_key, 0, sizeof *session_key);
+ memset((char*)ticket_reply, 0, sizeof *ticket_reply);
+ memset((char*)enc_tkt_reply, 0, sizeof *enc_tkt_reply);
+ code = krb5_kt_resolve(context, keytab, &kt);
+ if (code) {
+ if (keytab)
+ afs_com_err(progname, code, "while resolving keytab %s", keytab);
+ else
+ afs_com_err(progname, code, "while resolving default keytab");
+ goto cleanup;
+ }
+
+ code = krb5_kt_get_entry(context,
+ kt,
+ service_principal,
+ kvno,
+ enctype,
+ entry);
+ if (!code)
+ deref_keyblock_enctype(session_key) = deref_entry_enctype(entry);
+ else {
+ afs_com_err(progname, code, "while scanning keytab entries");
+ goto cleanup;
+ }
+
+ /* Make Ticket */
+
+#if USING_HEIMDAL
+ if ((code = krb5_generate_random_keyblock(context,
+ deref_keyblock_enctype(session_key), session_key))) {
+ afs_com_err(progname, code, "while making session key");
+ goto cleanup;
+ }
+ enc_tkt_reply->flags.initial = 1;
+ enc_tkt_reply->transited.tr_type = DOMAIN_X500_COMPRESS;
+ enc_tkt_reply->cname = client_principal->name;
+ enc_tkt_reply->crealm = client_principal->realm;
+ enc_tkt_reply->key = *session_key;
+ {
+ static krb5_data empty_string;
+ enc_tkt_reply->transited.contents = empty_string;
+ }
+ enc_tkt_reply->authtime = starttime;
+ enc_tkt_reply->starttime = temp_time;
+ *enc_tkt_reply->starttime = starttime;
+ enc_tkt_reply->endtime = endtime;
+#else
+ if ((code = krb5_c_make_random_key(context,
+ deref_keyblock_enctype(session_key), session_key))) {
+ afs_com_err(progname, code, "while making session key");
+ goto cleanup;
+ }
+ enc_tkt_reply->magic = KV5M_ENC_TKT_PART;
+#define DATACAST (unsigned char *)
+ enc_tkt_reply->flags |= TKT_FLG_INITIAL;
+ enc_tkt_reply->transited.tr_type = KRB5_DOMAIN_X500_COMPRESS;
+ enc_tkt_reply->session = session_key;
+ enc_tkt_reply->client = client_principal;
+ {
+ static krb5_data empty_string;
+ enc_tkt_reply->transited.tr_contents = empty_string;
+ }
+ enc_tkt_reply->times.authtime = starttime;
+ enc_tkt_reply->times.starttime = starttime; /* krb524init needs this */
+ enc_tkt_reply->times.endtime = endtime;
+#endif /* USING_HEIMDAL */
+ /* NB: We will discard address for now--ignoring caddr field
+ in any case. MIT branch does what it always did. */
+
+ if (paddress && *paddress) {
+ deref_enc_tkt_addrs(enc_tkt_reply) = faddr;
+#if USING_HEIMDAL
+ faddr->len = 0;
+ faddr->val = address;
+#endif
+ for (i = 0; paddress[i]; ++i) {
+#if USING_HEIMDAL
+ address[i].addr_type = KRB5_ADDRESS_INET;
+ address[i].address.data = (void*)(paddress+i);
+ address[i].address.length = sizeof(paddress[i]);
+#else
+#if !USING_SSL
+ address[i].magic = KV5M_ADDRESS;
+ address[i].addrtype = ADDRTYPE_INET;
+#else
+ address[i].addrtype = AF_INET;
+#endif
+ address[i].contents = (void*)(paddress+i);
+ address[i].length = sizeof(int);
+ faddr[i] = address+i;
+#endif
+ }
+#if USING_HEIMDAL
+ faddr->len = i;
+#else
+ faddr[i] = 0;
+#endif
+ }
+
+#if USING_HEIMDAL
+ ticket_reply->sname = service_principal->name;
+ ticket_reply->realm = service_principal->realm;
+
+ { /* crypto block */
+ krb5_crypto crypto = 0;
+ unsigned char *buf = 0;
+ size_t buf_size, buf_len;
+ char *what;
+
+ ASN1_MALLOC_ENCODE(EncTicketPart, buf, buf_size,
+ enc_tkt_reply, &buf_len, code);
+ if(code) {
+ afs_com_err(progname, code, "while encoding ticket");
+ goto cleanup;
+ }
+
+ if(buf_len != buf_size) {
+ afs_com_err(progname, code,
+ "%u != %u while encoding ticket (internal ASN.1 encoder error",
+ (unsigned int)buf_len, (unsigned int)buf_size);
+ goto cleanup;
+ }
+ what = "krb5_crypto_init";
+ code = krb5_crypto_init(context,
+ &deref_entry_keyblock(entry),
+ deref_entry_enctype(entry),
+ &crypto);
+ if(!code) {
+ what = "krb5_encrypt";
+ code = krb5_encrypt_EncryptedData(context, crypto, KRB5_KU_TICKET,
+ buf, buf_len, entry->vno, &(ticket_reply->enc_part));
+ }
+ if (buf) free(buf);
+ if (crypto) krb5_crypto_destroy(context, crypto);
+ if(code) {
+ afs_com_err(progname, code, "while %s", what);
+ goto cleanup;
+ }
+ } /* crypto block */
+ ticket_reply->enc_part.etype = deref_entry_enctype(entry);
+ ticket_reply->enc_part.kvno = (void *)temp_vno;
+ *ticket_reply->enc_part.kvno = entry->vno;
+ ticket_reply->tkt_vno = 5;
+#else
+ ticket_reply->server = service_principal;
+ ticket_reply->enc_part2 = enc_tkt_reply;
+ if ((code = krb5_encrypt_tkt_part(context, &deref_entry_keyblock(entry), ticket_reply))) {
+ afs_com_err(progname, code, "while making ticket");
+ goto cleanup;
+ }
+ ticket_reply->enc_part.kvno = entry->vno;
+#endif
+
+ /* Construct Creds */
+
+ if ((code = krb5_copy_principal(context, service_principal,
+ &creds->server))) {
+ afs_com_err(progname, code, "while copying service principal");
+ goto cleanup;
+ }
+ if ((code = krb5_copy_principal(context, client_principal,
+ &creds->client))) {
+ afs_com_err(progname, code, "while copying client principal");
+ goto cleanup;
+ }
+ if ((code = krb5_copy_keyblock_contents(context, session_key,
+ &deref_session_key(creds)))) {
+ afs_com_err(progname, code, "while copying session key");
+ goto cleanup;
+ }
+
+#if USING_HEIMDAL
+ creds->times.authtime = enc_tkt_reply->authtime;
+ creds->times.starttime = *(enc_tkt_reply->starttime);
+ creds->times.endtime = enc_tkt_reply->endtime;
+ creds->times.renew_till = 0; /* *(enc_tkt_reply->renew_till) */
+ creds->flags.b = enc_tkt_reply->flags;
+#else
+ creds->times = enc_tkt_reply->times;
+ creds->ticket_flags = enc_tkt_reply->flags;
+#endif
+ if (!deref_enc_tkt_addrs(enc_tkt_reply))
+ ;
+ else if ((code = krb5_copy_addresses(context,
+ deref_enc_tkt_addrs(enc_tkt_reply), &creds->addresses))) {
+ afs_com_err(progname, code, "while copying addresses");
+ goto cleanup;
+ }
- arg = strtok(NULL, sep);
+#if USING_HEIMDAL
+ {
+ size_t creds_tkt_len;
+ ASN1_MALLOC_ENCODE(Ticket, creds->ticket.data, creds->ticket.length,
+ ticket_reply, &creds_tkt_len, code);
+ if(code) {
+ afs_com_err(progname, code, "while encoding ticket");
+ goto cleanup;
}
+ }
+#else
+ if ((code = encode_krb5_ticket(ticket_reply, &temp))) {
+ afs_com_err(progname, code, "while encoding ticket");
+ goto cleanup;
+ }
+ creds->ticket = *temp;
+ free(temp);
+#endif
+ /* return creds */
+ *out_creds = creds;
+ creds = 0;
+cleanup:
+ if (deref_enc_data(&ticket_reply->enc_part))
+ free(deref_enc_data(&ticket_reply->enc_part));
+ krb5_free_keytab_entry_contents(context, entry);
+ if (cc)
+ krb5_cc_close(context, cc);
+ if (kt)
+ krb5_kt_close(context, kt);
+ if (creds) krb5_free_creds(context, creds);
+ krb5_free_keyblock_contents(context, session_key);
+ return code;
+#else
+ return -1;
+#endif
+}
+
+
+static krb5_error_code
+get_credv5(krb5_context context, char *name, char *inst, char *realm,
+ krb5_creds **creds)
+{
+ krb5_creds increds;
+ krb5_error_code r;
+
+ afs_dprintf("Getting tickets: %s%s%s@%s\n", name,
+ (inst && inst[0]) ? "/" : "", inst ? inst : "", realm);
+
+ memset(&increds, 0, sizeof(increds));
+/* ANL - instance may be ptr to a null string. Pass null then */
+ if ((r = krb5_build_principal(context, &increds.server,
+ strlen(realm), realm,
+ name,
+ (inst && strlen(inst)) ? inst : NULL,
+ NULL))) {
+ goto out;
+ }
- argv[argc] = NULL;
- *pargv = argv;
- *pargc = argc;
+ if (!_krb425_ccache) {
+ r = krb5_cc_default(context, &_krb425_ccache);
+ if (r)
+ goto out;
+ }
+
+ if (client) {
+ r = krb5_parse_name(context, client, &increds.client);
+ } else {
+ r = krb5_cc_get_principal(context, _krb425_ccache, &increds.client);
+ }
+
+ if (r)
+ goto out;
+
+ increds.times.endtime = 0;
+ if (do524)
+ /* Ask for DES since that is what V4 understands */
+ get_creds_enctype((&increds)) = ENCTYPE_DES_CBC_CRC;
+
+ if (keytab) {
+ afs_int32 start, end;
+ start = time(NULL);
+
+ if (akimp_lifetime == 0) {
+ end = MAX_AFS_INT32;
+ } else {
+ end = start + akimp_lifetime;
+ }
+
+ r = get_credv5_akimpersonate(context,
+ keytab,
+ increds.server,
+ increds.client,
+ start, end,
+ 0 /* paddress */,
+ creds /* out */);
+ } else {
+ r = krb5_get_credentials(context, 0, _krb425_ccache, &increds, creds);
+ }
+
+ out:
+
+ if (increds.server) {
+ krb5_free_principal(context, increds.server);
+ }
+
+ if (increds.client) {
+ krb5_free_principal(context, increds.client);
+ }
+
+ return r;
}
-#endif /* WINDOWS */
+static int
+get_user_realm(krb5_context context, char **realm)
+{
+ static krb5_principal client_principal = 0;
+ krb5_error_code r = 0;
+ *realm = NULL;
+
+ if (!_krb425_ccache) {
+ r = krb5_cc_default(context, &_krb425_ccache);
+ if (r)
+ return r;
+ }
+ if (!client_principal) {
+ if (client) {
+ r = krb5_parse_name(context, client, &client_principal);
+ } else {
+ r = krb5_cc_get_principal(context, _krb425_ccache, &client_principal);
+ }
+ if (r)
+ return r;
+ }
+
+ *realm = extract_realm(context, client_principal);
+ if (*realm == NULL)
+ return ENOMEM;
+
+ return(r);
+}
git://git.openafs.org / openafs.git / blobdiff