diff options
Diffstat (limited to 'crypto/heimdal/lib/krb5/keytab.c')
| -rw-r--r-- | crypto/heimdal/lib/krb5/keytab.c | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/crypto/heimdal/lib/krb5/keytab.c b/crypto/heimdal/lib/krb5/keytab.c deleted file mode 100644 index 36ef2f50d931b..0000000000000 --- a/crypto/heimdal/lib/krb5/keytab.c +++ /dev/null @@ -1,407 +0,0 @@ -/* - * Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "krb5_locl.h" - -RCSID("$Id: keytab.c,v 1.46 2000/02/07 03:18:05 assar Exp $"); - -/* - * Register a new keytab in `ops' - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_register(krb5_context context, - const krb5_kt_ops *ops) -{ - struct krb5_keytab_data *tmp; - - tmp = realloc(context->kt_types, - (context->num_kt_types + 1) * sizeof(*context->kt_types)); - if(tmp == NULL) - return ENOMEM; - memcpy(&tmp[context->num_kt_types], ops, - sizeof(tmp[context->num_kt_types])); - context->kt_types = tmp; - context->num_kt_types++; - return 0; -} - -/* - * Resolve the keytab name (of the form `type:residual') in `name' - * into a keytab in `id'. - * Return 0 or an error - */ - -krb5_error_code -krb5_kt_resolve(krb5_context context, - const char *name, - krb5_keytab *id) -{ - krb5_keytab k; - int i; - const char *type, *residual; - size_t type_len; - krb5_error_code ret; - - residual = strchr(name, ':'); - if(residual == NULL) { - type = "FILE"; - type_len = strlen(type); - residual = name; - } else { - type = name; - type_len = residual - name; - residual++; - } - - for(i = 0; i < context->num_kt_types; i++) { - if(strncmp(type, context->kt_types[i].prefix, type_len) == 0) - break; - } - if(i == context->num_kt_types) - return KRB5_KT_UNKNOWN_TYPE; - - k = malloc (sizeof(*k)); - if (k == NULL) - return ENOMEM; - memcpy(k, &context->kt_types[i], sizeof(*k)); - k->data = NULL; - ret = (*k->resolve)(context, residual, k); - if(ret) { - free(k); - k = NULL; - } - *id = k; - return ret; -} - -/* - * copy the name of the default keytab into `name'. - * Return 0 or KRB5_CONFIG_NOTENUFSPACE if `namesize' is too short. - */ - -krb5_error_code -krb5_kt_default_name(krb5_context context, char *name, size_t namesize) -{ - if (strlcpy (name, context->default_keytab, namesize) >= namesize) - return KRB5_CONFIG_NOTENUFSPACE; - return 0; -} - -/* - * Set `id' to the default keytab. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_default(krb5_context context, krb5_keytab *id) -{ - return krb5_kt_resolve (context, context->default_keytab, id); -} - -/* - * Read the key identified by `(principal, vno, enctype)' from the - * keytab in `keyprocarg' (the default if == NULL) into `*key'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_read_service_key(krb5_context context, - krb5_pointer keyprocarg, - krb5_principal principal, - krb5_kvno vno, - krb5_enctype enctype, - krb5_keyblock **key) -{ - krb5_keytab keytab; - krb5_keytab_entry entry; - krb5_error_code ret; - - if (keyprocarg) - ret = krb5_kt_resolve (context, keyprocarg, &keytab); - else - ret = krb5_kt_default (context, &keytab); - - if (ret) - return ret; - - ret = krb5_kt_get_entry (context, keytab, principal, vno, enctype, &entry); - krb5_kt_close (context, keytab); - if (ret) - return ret; - ret = krb5_copy_keyblock (context, &entry.keyblock, key); - krb5_kt_free_entry(context, &entry); - return ret; -} - -/* - * Retrieve the name of the keytab `keytab' into `name', `namesize' - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_get_name(krb5_context context, - krb5_keytab keytab, - char *name, - size_t namesize) -{ - return (*keytab->get_name)(context, keytab, name, namesize); -} - -/* - * Finish using the keytab in `id'. All resources will be released. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_close(krb5_context context, - krb5_keytab id) -{ - krb5_error_code ret; - - ret = (*id->close)(context, id); - if(ret == 0) - free(id); - return ret; -} - -/* - * Compare `entry' against `principal, vno, enctype'. - * Any of `principal, vno, enctype' might be 0 which acts as a wildcard. - * Return TRUE if they compare the same, FALSE otherwise. - */ - -krb5_boolean -krb5_kt_compare(krb5_context context, - krb5_keytab_entry *entry, - krb5_const_principal principal, - krb5_kvno vno, - krb5_enctype enctype) -{ - if(principal != NULL && - !krb5_principal_compare(context, entry->principal, principal)) - return FALSE; - if(vno && vno != entry->vno) - return FALSE; - if(enctype && enctype != entry->keyblock.keytype) - return FALSE; - return TRUE; -} - -/* - * Retrieve the keytab entry for `principal, kvno, enctype' into `entry' - * from the keytab `id'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_get_entry(krb5_context context, - krb5_keytab id, - krb5_const_principal principal, - krb5_kvno kvno, - krb5_enctype enctype, - krb5_keytab_entry *entry) -{ - krb5_keytab_entry tmp; - krb5_error_code ret; - krb5_kt_cursor cursor; - - if(id->get) - return (*id->get)(context, id, principal, kvno, enctype, entry); - - ret = krb5_kt_start_seq_get (context, id, &cursor); - if (ret) - return KRB5_KT_NOTFOUND; /* XXX i.e. file not found */ - - entry->vno = 0; - while (krb5_kt_next_entry(context, id, &tmp, &cursor) == 0) { - if (krb5_kt_compare(context, &tmp, principal, 0, enctype)) { - if (kvno == tmp.vno) { - krb5_kt_copy_entry_contents (context, &tmp, entry); - krb5_kt_free_entry (context, &tmp); - krb5_kt_end_seq_get(context, id, &cursor); - return 0; - } else if (kvno == 0 && tmp.vno > entry->vno) { - if (entry->vno) - krb5_kt_free_entry (context, entry); - krb5_kt_copy_entry_contents (context, &tmp, entry); - } - } - krb5_kt_free_entry(context, &tmp); - } - krb5_kt_end_seq_get (context, id, &cursor); - if (entry->vno) - return 0; - else - return KRB5_KT_NOTFOUND; -} - -/* - * Copy the contents of `in' into `out'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_copy_entry_contents(krb5_context context, - const krb5_keytab_entry *in, - krb5_keytab_entry *out) -{ - krb5_error_code ret; - - memset(out, 0, sizeof(*out)); - out->vno = in->vno; - - ret = krb5_copy_principal (context, in->principal, &out->principal); - if (ret) - goto fail; - ret = krb5_copy_keyblock_contents (context, - &in->keyblock, - &out->keyblock); - if (ret) - goto fail; - out->timestamp = in->timestamp; - return 0; -fail: - krb5_kt_free_entry (context, out); - return ret; -} - -/* - * Free the contents of `entry'. - */ - -krb5_error_code -krb5_kt_free_entry(krb5_context context, - krb5_keytab_entry *entry) -{ - krb5_free_principal (context, entry->principal); - krb5_free_keyblock_contents (context, &entry->keyblock); - return 0; -} - -#if 0 -static int -xxxlock(int fd, int write) -{ - if(flock(fd, (write ? LOCK_EX : LOCK_SH) | LOCK_NB) < 0) { - sleep(1); - if(flock(fd, (write ? LOCK_EX : LOCK_SH) | LOCK_NB) < 0) - return -1; - } - return 0; -} - -static void -xxxunlock(int fd) -{ - flock(fd, LOCK_UN); -} -#endif - -/* - * Set `cursor' to point at the beginning of `id'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_start_seq_get(krb5_context context, - krb5_keytab id, - krb5_kt_cursor *cursor) -{ - if(id->start_seq_get == NULL) - return HEIM_ERR_OPNOTSUPP; - return (*id->start_seq_get)(context, id, cursor); -} - -/* - * Get the next entry from `id' pointed to by `cursor' and advance the - * `cursor'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_next_entry(krb5_context context, - krb5_keytab id, - krb5_keytab_entry *entry, - krb5_kt_cursor *cursor) -{ - if(id->next_entry == NULL) - return HEIM_ERR_OPNOTSUPP; - return (*id->next_entry)(context, id, entry, cursor); -} - -/* - * Release all resources associated with `cursor'. - */ - -krb5_error_code -krb5_kt_end_seq_get(krb5_context context, - krb5_keytab id, - krb5_kt_cursor *cursor) -{ - if(id->end_seq_get == NULL) - return HEIM_ERR_OPNOTSUPP; - return (*id->end_seq_get)(context, id, cursor); -} - -/* - * Add the entry in `entry' to the keytab `id'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_add_entry(krb5_context context, - krb5_keytab id, - krb5_keytab_entry *entry) -{ - if(id->add == NULL) - return KRB5_KT_NOWRITE; - entry->timestamp = time(NULL); - return (*id->add)(context, id,entry); -} - -/* - * Remove the entry `entry' from the keytab `id'. - * Return 0 or an error. - */ - -krb5_error_code -krb5_kt_remove_entry(krb5_context context, - krb5_keytab id, - krb5_keytab_entry *entry) -{ - if(id->remove == NULL) - return KRB5_KT_NOWRITE; - return (*id->remove)(context, id, entry); -} |
