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.
250 lines
5.6 KiB
C
250 lines
5.6 KiB
C
/*
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* Copyright (c) 2005 - 2006 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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* 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 "hx_locl.h"
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/**
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* @page page_lock Locking and unlocking certificates and encrypted data.
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*
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* See the library functions here: @ref hx509_lock
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*/
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struct hx509_lock_data {
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struct _hx509_password password;
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hx509_certs certs;
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hx509_prompter_fct prompt;
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void *prompt_data;
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};
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static struct hx509_lock_data empty_lock_data = {
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{ 0, NULL }
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};
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hx509_lock _hx509_empty_lock = &empty_lock_data;
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/*
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*
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*/
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int
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hx509_lock_init(hx509_context context, hx509_lock *lock)
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{
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hx509_lock l;
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int ret;
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*lock = NULL;
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l = calloc(1, sizeof(*l));
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if (l == NULL)
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return ENOMEM;
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ret = hx509_certs_init(context,
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"MEMORY:locks-internal",
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0,
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NULL,
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&l->certs);
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if (ret) {
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free(l);
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return ret;
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}
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*lock = l;
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return 0;
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}
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int
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hx509_lock_add_password(hx509_lock lock, const char *password)
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{
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void *d;
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char *s;
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s = strdup(password);
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if (s == NULL)
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return ENOMEM;
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d = realloc(lock->password.val,
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(lock->password.len + 1) * sizeof(lock->password.val[0]));
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if (d == NULL) {
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free(s);
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return ENOMEM;
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}
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lock->password.val = d;
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lock->password.val[lock->password.len] = s;
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lock->password.len++;
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return 0;
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}
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const struct _hx509_password *
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_hx509_lock_get_passwords(hx509_lock lock)
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{
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return &lock->password;
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}
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hx509_certs
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_hx509_lock_unlock_certs(hx509_lock lock)
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{
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return lock->certs;
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}
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void
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hx509_lock_reset_passwords(hx509_lock lock)
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{
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size_t i;
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for (i = 0; i < lock->password.len; i++)
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free(lock->password.val[i]);
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free(lock->password.val);
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lock->password.val = NULL;
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lock->password.len = 0;
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}
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int
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hx509_lock_add_cert(hx509_context context, hx509_lock lock, hx509_cert cert)
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{
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return hx509_certs_add(context, lock->certs, cert);
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}
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int
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hx509_lock_add_certs(hx509_context context, hx509_lock lock, hx509_certs certs)
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{
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return hx509_certs_merge(context, lock->certs, certs);
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}
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void
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hx509_lock_reset_certs(hx509_context context, hx509_lock lock)
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{
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hx509_certs certs = lock->certs;
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int ret;
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ret = hx509_certs_init(context,
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"MEMORY:locks-internal",
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0,
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NULL,
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&lock->certs);
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if (ret == 0)
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hx509_certs_free(&certs);
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else
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lock->certs = certs;
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}
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int
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_hx509_lock_find_cert(hx509_lock lock, const hx509_query *q, hx509_cert *c)
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{
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*c = NULL;
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return 0;
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}
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int
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hx509_lock_set_prompter(hx509_lock lock, hx509_prompter_fct prompt, void *data)
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{
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lock->prompt = prompt;
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lock->prompt_data = data;
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return 0;
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}
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void
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hx509_lock_reset_promper(hx509_lock lock)
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{
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lock->prompt = NULL;
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lock->prompt_data = NULL;
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}
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static int
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default_prompter(void *data, const hx509_prompt *prompter)
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{
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if (hx509_prompt_hidden(prompter->type)) {
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if(UI_UTIL_read_pw_string(prompter->reply.data,
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prompter->reply.length,
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prompter->prompt,
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0))
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return 1;
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} else {
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char *s = prompter->reply.data;
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fputs (prompter->prompt, stdout);
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fflush (stdout);
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if(fgets(prompter->reply.data,
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prompter->reply.length,
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stdin) == NULL)
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return 1;
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s[strcspn(s, "\n")] = '\0';
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}
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return 0;
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}
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int
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hx509_lock_prompt(hx509_lock lock, hx509_prompt *prompt)
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{
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if (lock->prompt == NULL)
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return HX509_CRYPTO_NO_PROMPTER;
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return (*lock->prompt)(lock->prompt_data, prompt);
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}
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void
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hx509_lock_free(hx509_lock lock)
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{
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if (lock) {
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hx509_certs_free(&lock->certs);
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hx509_lock_reset_passwords(lock);
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memset(lock, 0, sizeof(*lock));
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free(lock);
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}
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}
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int
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hx509_prompt_hidden(hx509_prompt_type type)
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{
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/* default to hidden if unknown */
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switch (type) {
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case HX509_PROMPT_TYPE_QUESTION:
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case HX509_PROMPT_TYPE_INFO:
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return 0;
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default:
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return 1;
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}
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}
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int
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hx509_lock_command_string(hx509_lock lock, const char *string)
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{
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if (strncasecmp(string, "PASS:", 5) == 0) {
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hx509_lock_add_password(lock, string + 5);
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} else if (strcasecmp(string, "PROMPT") == 0) {
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hx509_lock_set_prompter(lock, default_prompter, NULL);
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} else
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return HX509_UNKNOWN_LOCK_COMMAND;
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return 0;
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}
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