ae77177087
several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509. - The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5. - Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf. - libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next. - Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well. - This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
1123 lines
27 KiB
C
1123 lines
27 KiB
C
/*
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* Copyright (c) 2004 - 2007 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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#include <krb5_ccapi.h>
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#endif
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#ifndef KCM_IS_API_CACHE
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static HEIMDAL_MUTEX acc_mutex = HEIMDAL_MUTEX_INITIALIZER;
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static cc_initialize_func init_func;
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static void (KRB5_CALLCONV *set_target_uid)(uid_t);
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static void (KRB5_CALLCONV *clear_target)(void);
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#ifdef HAVE_DLOPEN
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static void *cc_handle;
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#endif
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typedef struct krb5_acc {
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char *cache_name;
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cc_context_t context;
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cc_ccache_t ccache;
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} krb5_acc;
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static krb5_error_code KRB5_CALLCONV acc_close(krb5_context, krb5_ccache);
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#define ACACHE(X) ((krb5_acc *)(X)->data.data)
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static const struct {
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cc_int32 error;
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krb5_error_code ret;
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} cc_errors[] = {
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{ ccErrBadName, KRB5_CC_BADNAME },
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{ ccErrCredentialsNotFound, KRB5_CC_NOTFOUND },
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{ ccErrCCacheNotFound, KRB5_FCC_NOFILE },
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{ ccErrContextNotFound, KRB5_CC_NOTFOUND },
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{ ccIteratorEnd, KRB5_CC_END },
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{ ccErrNoMem, KRB5_CC_NOMEM },
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{ ccErrServerUnavailable, KRB5_CC_NOSUPP },
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{ ccErrInvalidCCache, KRB5_CC_BADNAME },
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{ ccNoError, 0 }
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};
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static krb5_error_code
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translate_cc_error(krb5_context context, cc_int32 error)
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{
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size_t i;
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krb5_clear_error_message(context);
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for(i = 0; i < sizeof(cc_errors)/sizeof(cc_errors[0]); i++)
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if (cc_errors[i].error == error)
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return cc_errors[i].ret;
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return KRB5_FCC_INTERNAL;
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}
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static krb5_error_code
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init_ccapi(krb5_context context)
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{
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const char *lib = NULL;
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HEIMDAL_MUTEX_lock(&acc_mutex);
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if (init_func) {
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HEIMDAL_MUTEX_unlock(&acc_mutex);
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if (context)
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krb5_clear_error_message(context);
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return 0;
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}
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if (context)
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lib = krb5_config_get_string(context, NULL,
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"libdefaults", "ccapi_library",
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NULL);
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if (lib == NULL) {
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#ifdef __APPLE__
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lib = "/System/Library/Frameworks/Kerberos.framework/Kerberos";
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#elif defined(KRB5_USE_PATH_TOKENS) && defined(_WIN32)
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lib = "%{LIBDIR}/libkrb5_cc.dll";
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#else
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lib = "/usr/lib/libkrb5_cc.so";
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#endif
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}
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#ifdef HAVE_DLOPEN
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#ifndef RTLD_LAZY
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#define RTLD_LAZY 0
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#endif
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#ifndef RTLD_LOCAL
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|
#define RTLD_LOCAL 0
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#endif
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|
|
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#ifdef KRB5_USE_PATH_TOKENS
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{
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char * explib = NULL;
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if (_krb5_expand_path_tokens(context, lib, &explib) == 0) {
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cc_handle = dlopen(explib, RTLD_LAZY|RTLD_LOCAL);
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free(explib);
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}
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}
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#else
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cc_handle = dlopen(lib, RTLD_LAZY|RTLD_LOCAL);
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#endif
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if (cc_handle == NULL) {
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HEIMDAL_MUTEX_unlock(&acc_mutex);
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if (context)
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krb5_set_error_message(context, KRB5_CC_NOSUPP,
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N_("Failed to load API cache module %s", "file"),
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lib);
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return KRB5_CC_NOSUPP;
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}
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init_func = (cc_initialize_func)dlsym(cc_handle, "cc_initialize");
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set_target_uid = (void (KRB5_CALLCONV *)(uid_t))
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dlsym(cc_handle, "krb5_ipc_client_set_target_uid");
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clear_target = (void (KRB5_CALLCONV *)(void))
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dlsym(cc_handle, "krb5_ipc_client_clear_target");
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HEIMDAL_MUTEX_unlock(&acc_mutex);
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if (init_func == NULL) {
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if (context)
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krb5_set_error_message(context, KRB5_CC_NOSUPP,
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N_("Failed to find cc_initialize"
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"in %s: %s", "file, error"), lib, dlerror());
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dlclose(cc_handle);
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return KRB5_CC_NOSUPP;
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}
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return 0;
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#else
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HEIMDAL_MUTEX_unlock(&acc_mutex);
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if (context)
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krb5_set_error_message(context, KRB5_CC_NOSUPP,
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N_("no support for shared object", ""));
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return KRB5_CC_NOSUPP;
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#endif
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}
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void
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_heim_krb5_ipc_client_set_target_uid(uid_t uid)
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{
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init_ccapi(NULL);
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if (set_target_uid != NULL)
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(*set_target_uid)(uid);
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}
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void
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_heim_krb5_ipc_client_clear_target(void)
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{
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init_ccapi(NULL);
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if (clear_target != NULL)
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(*clear_target)();
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}
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static krb5_error_code
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make_cred_from_ccred(krb5_context context,
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const cc_credentials_v5_t *incred,
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krb5_creds *cred)
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{
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krb5_error_code ret;
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unsigned int i;
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memset(cred, 0, sizeof(*cred));
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ret = krb5_parse_name(context, incred->client, &cred->client);
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if (ret)
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goto fail;
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ret = krb5_parse_name(context, incred->server, &cred->server);
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if (ret)
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goto fail;
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cred->session.keytype = incred->keyblock.type;
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cred->session.keyvalue.length = incred->keyblock.length;
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cred->session.keyvalue.data = malloc(incred->keyblock.length);
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if (cred->session.keyvalue.data == NULL)
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goto nomem;
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memcpy(cred->session.keyvalue.data, incred->keyblock.data,
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incred->keyblock.length);
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cred->times.authtime = incred->authtime;
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cred->times.starttime = incred->starttime;
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cred->times.endtime = incred->endtime;
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cred->times.renew_till = incred->renew_till;
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ret = krb5_data_copy(&cred->ticket,
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incred->ticket.data,
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incred->ticket.length);
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if (ret)
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goto nomem;
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ret = krb5_data_copy(&cred->second_ticket,
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incred->second_ticket.data,
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incred->second_ticket.length);
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if (ret)
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goto nomem;
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cred->authdata.val = NULL;
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cred->authdata.len = 0;
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cred->addresses.val = NULL;
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cred->addresses.len = 0;
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for (i = 0; incred->authdata && incred->authdata[i]; i++)
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;
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if (i) {
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cred->authdata.val = calloc(i, sizeof(cred->authdata.val[0]));
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if (cred->authdata.val == NULL)
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goto nomem;
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cred->authdata.len = i;
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for (i = 0; i < cred->authdata.len; i++) {
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cred->authdata.val[i].ad_type = incred->authdata[i]->type;
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ret = krb5_data_copy(&cred->authdata.val[i].ad_data,
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incred->authdata[i]->data,
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incred->authdata[i]->length);
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if (ret)
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goto nomem;
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}
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}
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for (i = 0; incred->addresses && incred->addresses[i]; i++)
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;
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if (i) {
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cred->addresses.val = calloc(i, sizeof(cred->addresses.val[0]));
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if (cred->addresses.val == NULL)
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goto nomem;
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cred->addresses.len = i;
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|
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for (i = 0; i < cred->addresses.len; i++) {
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cred->addresses.val[i].addr_type = incred->addresses[i]->type;
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ret = krb5_data_copy(&cred->addresses.val[i].address,
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incred->addresses[i]->data,
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incred->addresses[i]->length);
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if (ret)
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goto nomem;
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}
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}
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|
cred->flags.i = 0;
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if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_FORWARDABLE)
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cred->flags.b.forwardable = 1;
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if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_FORWARDED)
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cred->flags.b.forwarded = 1;
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if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_PROXIABLE)
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cred->flags.b.proxiable = 1;
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if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_PROXY)
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|
cred->flags.b.proxy = 1;
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|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_MAY_POSTDATE)
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cred->flags.b.may_postdate = 1;
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|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_POSTDATED)
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|
cred->flags.b.postdated = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_INVALID)
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|
cred->flags.b.invalid = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_RENEWABLE)
|
|
cred->flags.b.renewable = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_INITIAL)
|
|
cred->flags.b.initial = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_PRE_AUTH)
|
|
cred->flags.b.pre_authent = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_HW_AUTH)
|
|
cred->flags.b.hw_authent = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_TRANSIT_POLICY_CHECKED)
|
|
cred->flags.b.transited_policy_checked = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_OK_AS_DELEGATE)
|
|
cred->flags.b.ok_as_delegate = 1;
|
|
if (incred->ticket_flags & KRB5_CCAPI_TKT_FLG_ANONYMOUS)
|
|
cred->flags.b.anonymous = 1;
|
|
|
|
return 0;
|
|
|
|
nomem:
|
|
ret = ENOMEM;
|
|
krb5_set_error_message(context, ret, N_("malloc: out of memory", "malloc"));
|
|
|
|
fail:
|
|
krb5_free_cred_contents(context, cred);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
free_ccred(cc_credentials_v5_t *cred)
|
|
{
|
|
int i;
|
|
|
|
if (cred->addresses) {
|
|
for (i = 0; cred->addresses[i] != 0; i++) {
|
|
if (cred->addresses[i]->data)
|
|
free(cred->addresses[i]->data);
|
|
free(cred->addresses[i]);
|
|
}
|
|
free(cred->addresses);
|
|
}
|
|
if (cred->server)
|
|
free(cred->server);
|
|
if (cred->client)
|
|
free(cred->client);
|
|
memset(cred, 0, sizeof(*cred));
|
|
}
|
|
|
|
static krb5_error_code
|
|
make_ccred_from_cred(krb5_context context,
|
|
const krb5_creds *incred,
|
|
cc_credentials_v5_t *cred)
|
|
{
|
|
krb5_error_code ret;
|
|
size_t i;
|
|
|
|
memset(cred, 0, sizeof(*cred));
|
|
|
|
ret = krb5_unparse_name(context, incred->client, &cred->client);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = krb5_unparse_name(context, incred->server, &cred->server);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
cred->keyblock.type = incred->session.keytype;
|
|
cred->keyblock.length = incred->session.keyvalue.length;
|
|
cred->keyblock.data = incred->session.keyvalue.data;
|
|
|
|
cred->authtime = incred->times.authtime;
|
|
cred->starttime = incred->times.starttime;
|
|
cred->endtime = incred->times.endtime;
|
|
cred->renew_till = incred->times.renew_till;
|
|
|
|
cred->ticket.length = incred->ticket.length;
|
|
cred->ticket.data = incred->ticket.data;
|
|
|
|
cred->second_ticket.length = incred->second_ticket.length;
|
|
cred->second_ticket.data = incred->second_ticket.data;
|
|
|
|
/* XXX this one should also be filled in */
|
|
cred->authdata = NULL;
|
|
|
|
cred->addresses = calloc(incred->addresses.len + 1,
|
|
sizeof(cred->addresses[0]));
|
|
if (cred->addresses == NULL) {
|
|
|
|
ret = ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < incred->addresses.len; i++) {
|
|
cc_data *addr;
|
|
addr = malloc(sizeof(*addr));
|
|
if (addr == NULL) {
|
|
ret = ENOMEM;
|
|
goto fail;
|
|
}
|
|
addr->type = incred->addresses.val[i].addr_type;
|
|
addr->length = incred->addresses.val[i].address.length;
|
|
addr->data = malloc(addr->length);
|
|
if (addr->data == NULL) {
|
|
free(addr);
|
|
ret = ENOMEM;
|
|
goto fail;
|
|
}
|
|
memcpy(addr->data, incred->addresses.val[i].address.data,
|
|
addr->length);
|
|
cred->addresses[i] = addr;
|
|
}
|
|
cred->addresses[i] = NULL;
|
|
|
|
cred->ticket_flags = 0;
|
|
if (incred->flags.b.forwardable)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_FORWARDABLE;
|
|
if (incred->flags.b.forwarded)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_FORWARDED;
|
|
if (incred->flags.b.proxiable)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_PROXIABLE;
|
|
if (incred->flags.b.proxy)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_PROXY;
|
|
if (incred->flags.b.may_postdate)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_MAY_POSTDATE;
|
|
if (incred->flags.b.postdated)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_POSTDATED;
|
|
if (incred->flags.b.invalid)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_INVALID;
|
|
if (incred->flags.b.renewable)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_RENEWABLE;
|
|
if (incred->flags.b.initial)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_INITIAL;
|
|
if (incred->flags.b.pre_authent)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_PRE_AUTH;
|
|
if (incred->flags.b.hw_authent)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_HW_AUTH;
|
|
if (incred->flags.b.transited_policy_checked)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_TRANSIT_POLICY_CHECKED;
|
|
if (incred->flags.b.ok_as_delegate)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_OK_AS_DELEGATE;
|
|
if (incred->flags.b.anonymous)
|
|
cred->ticket_flags |= KRB5_CCAPI_TKT_FLG_ANONYMOUS;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
free_ccred(cred);
|
|
|
|
krb5_clear_error_message(context);
|
|
return ret;
|
|
}
|
|
|
|
static cc_int32
|
|
get_cc_name(krb5_acc *a)
|
|
{
|
|
cc_string_t name;
|
|
cc_int32 error;
|
|
|
|
error = (*a->ccache->func->get_name)(a->ccache, &name);
|
|
if (error)
|
|
return error;
|
|
|
|
a->cache_name = strdup(name->data);
|
|
(*name->func->release)(name);
|
|
if (a->cache_name == NULL)
|
|
return ccErrNoMem;
|
|
return ccNoError;
|
|
}
|
|
|
|
|
|
static const char* KRB5_CALLCONV
|
|
acc_get_name(krb5_context context,
|
|
krb5_ccache id)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
int32_t error;
|
|
|
|
if (a->cache_name == NULL) {
|
|
krb5_error_code ret;
|
|
krb5_principal principal;
|
|
char *name;
|
|
|
|
ret = _krb5_get_default_principal_local(context, &principal);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
ret = krb5_unparse_name(context, principal, &name);
|
|
krb5_free_principal(context, principal);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
error = (*a->context->func->create_new_ccache)(a->context,
|
|
cc_credentials_v5,
|
|
name,
|
|
&a->ccache);
|
|
krb5_xfree(name);
|
|
if (error)
|
|
return NULL;
|
|
|
|
error = get_cc_name(a);
|
|
if (error)
|
|
return NULL;
|
|
}
|
|
|
|
return a->cache_name;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_alloc(krb5_context context, krb5_ccache *id)
|
|
{
|
|
krb5_error_code ret;
|
|
cc_int32 error;
|
|
krb5_acc *a;
|
|
|
|
ret = init_ccapi(context);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = krb5_data_alloc(&(*id)->data, sizeof(*a));
|
|
if (ret) {
|
|
krb5_clear_error_message(context);
|
|
return ret;
|
|
}
|
|
|
|
a = ACACHE(*id);
|
|
|
|
error = (*init_func)(&a->context, ccapi_version_3, NULL, NULL);
|
|
if (error) {
|
|
krb5_data_free(&(*id)->data);
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
a->cache_name = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_resolve(krb5_context context, krb5_ccache *id, const char *res)
|
|
{
|
|
krb5_error_code ret;
|
|
cc_int32 error;
|
|
krb5_acc *a;
|
|
|
|
ret = acc_alloc(context, id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
a = ACACHE(*id);
|
|
|
|
error = (*a->context->func->open_ccache)(a->context, res, &a->ccache);
|
|
if (error == ccNoError) {
|
|
cc_time_t offset;
|
|
error = get_cc_name(a);
|
|
if (error != ccNoError) {
|
|
acc_close(context, *id);
|
|
*id = NULL;
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
error = (*a->ccache->func->get_kdc_time_offset)(a->ccache,
|
|
cc_credentials_v5,
|
|
&offset);
|
|
if (error == 0)
|
|
context->kdc_sec_offset = offset;
|
|
|
|
} else if (error == ccErrCCacheNotFound) {
|
|
a->ccache = NULL;
|
|
a->cache_name = NULL;
|
|
} else {
|
|
*id = NULL;
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_gen_new(krb5_context context, krb5_ccache *id)
|
|
{
|
|
krb5_error_code ret;
|
|
krb5_acc *a;
|
|
|
|
ret = acc_alloc(context, id);
|
|
if (ret)
|
|
return ret;
|
|
|
|
a = ACACHE(*id);
|
|
|
|
a->ccache = NULL;
|
|
a->cache_name = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_initialize(krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_principal primary_principal)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
krb5_error_code ret;
|
|
int32_t error;
|
|
char *name;
|
|
|
|
ret = krb5_unparse_name(context, primary_principal, &name);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (a->cache_name == NULL) {
|
|
error = (*a->context->func->create_new_ccache)(a->context,
|
|
cc_credentials_v5,
|
|
name,
|
|
&a->ccache);
|
|
free(name);
|
|
if (error == ccNoError)
|
|
error = get_cc_name(a);
|
|
} else {
|
|
cc_credentials_iterator_t iter;
|
|
cc_credentials_t ccred;
|
|
|
|
error = (*a->ccache->func->new_credentials_iterator)(a->ccache, &iter);
|
|
if (error) {
|
|
free(name);
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
while (1) {
|
|
error = (*iter->func->next)(iter, &ccred);
|
|
if (error)
|
|
break;
|
|
(*a->ccache->func->remove_credentials)(a->ccache, ccred);
|
|
(*ccred->func->release)(ccred);
|
|
}
|
|
(*iter->func->release)(iter);
|
|
|
|
error = (*a->ccache->func->set_principal)(a->ccache,
|
|
cc_credentials_v5,
|
|
name);
|
|
}
|
|
|
|
if (error == 0 && context->kdc_sec_offset)
|
|
error = (*a->ccache->func->set_kdc_time_offset)(a->ccache,
|
|
cc_credentials_v5,
|
|
context->kdc_sec_offset);
|
|
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_close(krb5_context context,
|
|
krb5_ccache id)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
|
|
if (a->ccache) {
|
|
(*a->ccache->func->release)(a->ccache);
|
|
a->ccache = NULL;
|
|
}
|
|
if (a->cache_name) {
|
|
free(a->cache_name);
|
|
a->cache_name = NULL;
|
|
}
|
|
if (a->context) {
|
|
(*a->context->func->release)(a->context);
|
|
a->context = NULL;
|
|
}
|
|
krb5_data_free(&id->data);
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_destroy(krb5_context context,
|
|
krb5_ccache id)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
cc_int32 error = 0;
|
|
|
|
if (a->ccache) {
|
|
error = (*a->ccache->func->destroy)(a->ccache);
|
|
a->ccache = NULL;
|
|
}
|
|
if (a->context) {
|
|
error = (a->context->func->release)(a->context);
|
|
a->context = NULL;
|
|
}
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_store_cred(krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_creds *creds)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
cc_credentials_union cred;
|
|
cc_credentials_v5_t v5cred;
|
|
krb5_error_code ret;
|
|
cc_int32 error;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
cred.version = cc_credentials_v5;
|
|
cred.credentials.credentials_v5 = &v5cred;
|
|
|
|
ret = make_ccred_from_cred(context,
|
|
creds,
|
|
&v5cred);
|
|
if (ret)
|
|
return ret;
|
|
|
|
error = (*a->ccache->func->store_credentials)(a->ccache, &cred);
|
|
if (error)
|
|
ret = translate_cc_error(context, error);
|
|
|
|
free_ccred(&v5cred);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_principal(krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_principal *principal)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
krb5_error_code ret;
|
|
int32_t error;
|
|
cc_string_t name;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
error = (*a->ccache->func->get_principal)(a->ccache,
|
|
cc_credentials_v5,
|
|
&name);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
ret = krb5_parse_name(context, name->data, principal);
|
|
|
|
(*name->func->release)(name);
|
|
return ret;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_first (krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_cc_cursor *cursor)
|
|
{
|
|
cc_credentials_iterator_t iter;
|
|
krb5_acc *a = ACACHE(id);
|
|
int32_t error;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
error = (*a->ccache->func->new_credentials_iterator)(a->ccache, &iter);
|
|
if (error) {
|
|
krb5_clear_error_message(context);
|
|
return ENOENT;
|
|
}
|
|
*cursor = iter;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_next (krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_cc_cursor *cursor,
|
|
krb5_creds *creds)
|
|
{
|
|
cc_credentials_iterator_t iter = *cursor;
|
|
cc_credentials_t cred;
|
|
krb5_error_code ret;
|
|
int32_t error;
|
|
|
|
while (1) {
|
|
error = (*iter->func->next)(iter, &cred);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
if (cred->data->version == cc_credentials_v5)
|
|
break;
|
|
(*cred->func->release)(cred);
|
|
}
|
|
|
|
ret = make_cred_from_ccred(context,
|
|
cred->data->credentials.credentials_v5,
|
|
creds);
|
|
(*cred->func->release)(cred);
|
|
return ret;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_end_get (krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_cc_cursor *cursor)
|
|
{
|
|
cc_credentials_iterator_t iter = *cursor;
|
|
(*iter->func->release)(iter);
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_remove_cred(krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_flags which,
|
|
krb5_creds *cred)
|
|
{
|
|
cc_credentials_iterator_t iter;
|
|
krb5_acc *a = ACACHE(id);
|
|
cc_credentials_t ccred;
|
|
krb5_error_code ret;
|
|
cc_int32 error;
|
|
char *client, *server;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
if (cred->client) {
|
|
ret = krb5_unparse_name(context, cred->client, &client);
|
|
if (ret)
|
|
return ret;
|
|
} else
|
|
client = NULL;
|
|
|
|
ret = krb5_unparse_name(context, cred->server, &server);
|
|
if (ret) {
|
|
free(client);
|
|
return ret;
|
|
}
|
|
|
|
error = (*a->ccache->func->new_credentials_iterator)(a->ccache, &iter);
|
|
if (error) {
|
|
free(server);
|
|
free(client);
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
ret = KRB5_CC_NOTFOUND;
|
|
while (1) {
|
|
cc_credentials_v5_t *v5cred;
|
|
|
|
error = (*iter->func->next)(iter, &ccred);
|
|
if (error)
|
|
break;
|
|
|
|
if (ccred->data->version != cc_credentials_v5)
|
|
goto next;
|
|
|
|
v5cred = ccred->data->credentials.credentials_v5;
|
|
|
|
if (client && strcmp(v5cred->client, client) != 0)
|
|
goto next;
|
|
|
|
if (strcmp(v5cred->server, server) != 0)
|
|
goto next;
|
|
|
|
(*a->ccache->func->remove_credentials)(a->ccache, ccred);
|
|
ret = 0;
|
|
next:
|
|
(*ccred->func->release)(ccred);
|
|
}
|
|
|
|
(*iter->func->release)(iter);
|
|
|
|
if (ret)
|
|
krb5_set_error_message(context, ret,
|
|
N_("Can't find credential %s in cache",
|
|
"principal"), server);
|
|
free(server);
|
|
free(client);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_set_flags(krb5_context context,
|
|
krb5_ccache id,
|
|
krb5_flags flags)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int KRB5_CALLCONV
|
|
acc_get_version(krb5_context context,
|
|
krb5_ccache id)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
struct cache_iter {
|
|
cc_context_t context;
|
|
cc_ccache_iterator_t iter;
|
|
};
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_cache_first(krb5_context context, krb5_cc_cursor *cursor)
|
|
{
|
|
struct cache_iter *iter;
|
|
krb5_error_code ret;
|
|
cc_int32 error;
|
|
|
|
ret = init_ccapi(context);
|
|
if (ret)
|
|
return ret;
|
|
|
|
iter = calloc(1, sizeof(*iter));
|
|
if (iter == NULL) {
|
|
krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
|
|
return ENOMEM;
|
|
}
|
|
|
|
error = (*init_func)(&iter->context, ccapi_version_3, NULL, NULL);
|
|
if (error) {
|
|
free(iter);
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
error = (*iter->context->func->new_ccache_iterator)(iter->context,
|
|
&iter->iter);
|
|
if (error) {
|
|
free(iter);
|
|
krb5_clear_error_message(context);
|
|
return ENOENT;
|
|
}
|
|
*cursor = iter;
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_cache_next(krb5_context context, krb5_cc_cursor cursor, krb5_ccache *id)
|
|
{
|
|
struct cache_iter *iter = cursor;
|
|
cc_ccache_t cache;
|
|
krb5_acc *a;
|
|
krb5_error_code ret;
|
|
int32_t error;
|
|
|
|
error = (*iter->iter->func->next)(iter->iter, &cache);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
ret = _krb5_cc_allocate(context, &krb5_acc_ops, id);
|
|
if (ret) {
|
|
(*cache->func->release)(cache);
|
|
return ret;
|
|
}
|
|
|
|
ret = acc_alloc(context, id);
|
|
if (ret) {
|
|
(*cache->func->release)(cache);
|
|
free(*id);
|
|
return ret;
|
|
}
|
|
|
|
a = ACACHE(*id);
|
|
a->ccache = cache;
|
|
|
|
error = get_cc_name(a);
|
|
if (error) {
|
|
acc_close(context, *id);
|
|
*id = NULL;
|
|
return translate_cc_error(context, error);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_end_cache_get(krb5_context context, krb5_cc_cursor cursor)
|
|
{
|
|
struct cache_iter *iter = cursor;
|
|
|
|
(*iter->iter->func->release)(iter->iter);
|
|
iter->iter = NULL;
|
|
(*iter->context->func->release)(iter->context);
|
|
iter->context = NULL;
|
|
free(iter);
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_move(krb5_context context, krb5_ccache from, krb5_ccache to)
|
|
{
|
|
krb5_acc *afrom = ACACHE(from);
|
|
krb5_acc *ato = ACACHE(to);
|
|
int32_t error;
|
|
|
|
if (ato->ccache == NULL) {
|
|
cc_string_t name;
|
|
|
|
error = (*afrom->ccache->func->get_principal)(afrom->ccache,
|
|
cc_credentials_v5,
|
|
&name);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
error = (*ato->context->func->create_new_ccache)(ato->context,
|
|
cc_credentials_v5,
|
|
name->data,
|
|
&ato->ccache);
|
|
(*name->func->release)(name);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
error = (*ato->ccache->func->move)(afrom->ccache, ato->ccache);
|
|
|
|
acc_destroy(context, from);
|
|
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_get_default_name(krb5_context context, char **str)
|
|
{
|
|
krb5_error_code ret;
|
|
cc_context_t cc;
|
|
cc_string_t name;
|
|
int32_t error;
|
|
|
|
ret = init_ccapi(context);
|
|
if (ret)
|
|
return ret;
|
|
|
|
error = (*init_func)(&cc, ccapi_version_3, NULL, NULL);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
error = (*cc->func->get_default_ccache_name)(cc, &name);
|
|
if (error) {
|
|
(*cc->func->release)(cc);
|
|
return translate_cc_error(context, error);
|
|
}
|
|
|
|
error = asprintf(str, "API:%s", name->data);
|
|
(*name->func->release)(name);
|
|
(*cc->func->release)(cc);
|
|
|
|
if (error < 0 || *str == NULL) {
|
|
krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
|
|
return ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_set_default(krb5_context context, krb5_ccache id)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
cc_int32 error;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
error = (*a->ccache->func->set_default)(a->ccache);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static krb5_error_code KRB5_CALLCONV
|
|
acc_lastchange(krb5_context context, krb5_ccache id, krb5_timestamp *mtime)
|
|
{
|
|
krb5_acc *a = ACACHE(id);
|
|
cc_int32 error;
|
|
cc_time_t t;
|
|
|
|
if (a->ccache == NULL) {
|
|
krb5_set_error_message(context, KRB5_CC_NOTFOUND,
|
|
N_("No API credential found", ""));
|
|
return KRB5_CC_NOTFOUND;
|
|
}
|
|
|
|
error = (*a->ccache->func->get_change_time)(a->ccache, &t);
|
|
if (error)
|
|
return translate_cc_error(context, error);
|
|
|
|
*mtime = t;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Variable containing the API based credential cache implemention.
|
|
*
|
|
* @ingroup krb5_ccache
|
|
*/
|
|
|
|
KRB5_LIB_VARIABLE const krb5_cc_ops krb5_acc_ops = {
|
|
KRB5_CC_OPS_VERSION,
|
|
"API",
|
|
acc_get_name,
|
|
acc_resolve,
|
|
acc_gen_new,
|
|
acc_initialize,
|
|
acc_destroy,
|
|
acc_close,
|
|
acc_store_cred,
|
|
NULL, /* acc_retrieve */
|
|
acc_get_principal,
|
|
acc_get_first,
|
|
acc_get_next,
|
|
acc_end_get,
|
|
acc_remove_cred,
|
|
acc_set_flags,
|
|
acc_get_version,
|
|
acc_get_cache_first,
|
|
acc_get_cache_next,
|
|
acc_end_cache_get,
|
|
acc_move,
|
|
acc_get_default_name,
|
|
acc_set_default,
|
|
acc_lastchange,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
#endif
|