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-rw-r--r--crypto/heimdal/lib/krb5/keytab.c528
1 files changed, 0 insertions, 528 deletions
diff --git a/crypto/heimdal/lib/krb5/keytab.c b/crypto/heimdal/lib/krb5/keytab.c
deleted file mode 100644
index f6c7858..0000000
--- a/crypto/heimdal/lib/krb5/keytab.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- * Copyright (c) 1997 - 2005 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 20211 2007-02-09 07:11:03Z lha $");
-
-/*
- * Register a new keytab in `ops'
- * Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_register(krb5_context context,
- const krb5_kt_ops *ops)
-{
- struct krb5_keytab_data *tmp;
-
- if (strlen(ops->prefix) > KRB5_KT_PREFIX_MAX_LEN - 1) {
- krb5_set_error_string(context, "krb5_kt_register; prefix too long");
- return KRB5_KT_BADNAME;
- }
-
- tmp = realloc(context->kt_types,
- (context->num_kt_types + 1) * sizeof(*context->kt_types));
- if(tmp == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- 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_LIB_FUNCTION
-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(strncasecmp(type, context->kt_types[i].prefix, type_len) == 0)
- break;
- }
- if(i == context->num_kt_types) {
- krb5_set_error_string(context, "unknown keytab type %.*s",
- (int)type_len, type);
- return KRB5_KT_UNKNOWN_TYPE;
- }
-
- k = malloc (sizeof(*k));
- if (k == NULL) {
- krb5_set_error_string(context, "malloc: out of memory");
- 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_LIB_FUNCTION
-krb5_kt_default_name(krb5_context context, char *name, size_t namesize)
-{
- if (strlcpy (name, context->default_keytab, namesize) >= namesize) {
- krb5_clear_error_string (context);
- return KRB5_CONFIG_NOTENUFSPACE;
- }
- return 0;
-}
-
-/*
- * copy the name of the default modify keytab into `name'.
- * Return 0 or KRB5_CONFIG_NOTENUFSPACE if `namesize' is too short.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_default_modify_name(krb5_context context, char *name, size_t namesize)
-{
- const char *kt = NULL;
- if(context->default_keytab_modify == NULL) {
- if(strncasecmp(context->default_keytab, "ANY:", 4) != 0)
- kt = context->default_keytab;
- else {
- size_t len = strcspn(context->default_keytab + 4, ",");
- if(len >= namesize) {
- krb5_clear_error_string(context);
- return KRB5_CONFIG_NOTENUFSPACE;
- }
- strlcpy(name, context->default_keytab + 4, namesize);
- name[len] = '\0';
- return 0;
- }
- } else
- kt = context->default_keytab_modify;
- if (strlcpy (name, kt, namesize) >= namesize) {
- krb5_clear_error_string (context);
- return KRB5_CONFIG_NOTENUFSPACE;
- }
- return 0;
-}
-
-/*
- * Set `id' to the default keytab.
- * Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-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_LIB_FUNCTION
-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;
-}
-
-/*
- * Return the type of the `keytab' in the string `prefix of length
- * `prefixsize'.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_get_type(krb5_context context,
- krb5_keytab keytab,
- char *prefix,
- size_t prefixsize)
-{
- strlcpy(prefix, keytab->prefix, prefixsize);
- return 0;
-}
-
-/*
- * Retrieve the name of the keytab `keytab' into `name', `namesize'
- * Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_get_name(krb5_context context,
- krb5_keytab keytab,
- char *name,
- size_t namesize)
-{
- return (*keytab->get_name)(context, keytab, name, namesize);
-}
-
-/*
- * Retrieve the full name of the keytab `keytab' and store the name in
- * `str'. `str' needs to be freed by the caller using free(3).
- * Returns 0 or an error. On error, *str is set to NULL.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_get_full_name(krb5_context context,
- krb5_keytab keytab,
- char **str)
-{
- char type[KRB5_KT_PREFIX_MAX_LEN];
- char name[MAXPATHLEN];
- krb5_error_code ret;
-
- *str = NULL;
-
- ret = krb5_kt_get_type(context, keytab, type, sizeof(type));
- if (ret)
- return ret;
-
- ret = krb5_kt_get_name(context, keytab, name, sizeof(name));
- if (ret)
- return ret;
-
- if (asprintf(str, "%s:%s", type, name) == -1) {
- krb5_set_error_string(context, "malloc - out of memory");
- *str = NULL;
- return ENOMEM;
- }
-
- return 0;
-}
-
-/*
- * Finish using the keytab in `id'. All resources will be released,
- * even on errors. Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_close(krb5_context context,
- krb5_keytab id)
-{
- krb5_error_code ret;
-
- ret = (*id->close)(context, id);
- memset(id, 0, sizeof(*id));
- 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_LIB_FUNCTION
-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'.
- * kvno == 0 is a wildcard and gives the keytab with the highest vno.
- * Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-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) {
- krb5_clear_error_string(context);
- 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)) {
- /* the file keytab might only store the lower 8 bits of
- the kvno, so only compare those bits */
- if (kvno == tmp.vno
- || (tmp.vno < 256 && kvno % 256 == 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 {
- char princ[256], kvno_str[25], *kt_name;
- char *enctype_str = NULL;
-
- krb5_unparse_name_fixed (context, principal, princ, sizeof(princ));
- krb5_kt_get_full_name (context, id, &kt_name);
- krb5_enctype_to_string(context, enctype, &enctype_str);
-
- if (kvno)
- snprintf(kvno_str, sizeof(kvno_str), "(kvno %d)", kvno);
- else
- kvno_str[0] = '\0';
-
- krb5_set_error_string (context,
- "Failed to find %s%s in keytab %s (%s)",
- princ,
- kvno_str,
- kt_name ? kt_name : "unknown keytab",
- enctype_str ? enctype_str : "unknown enctype");
- free(kt_name);
- free(enctype_str);
- return KRB5_KT_NOTFOUND;
- }
-}
-
-/*
- * Copy the contents of `in' into `out'.
- * Return 0 or an error. */
-
-krb5_error_code KRB5_LIB_FUNCTION
-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_LIB_FUNCTION
-krb5_kt_free_entry(krb5_context context,
- krb5_keytab_entry *entry)
-{
- krb5_free_principal (context, entry->principal);
- krb5_free_keyblock_contents (context, &entry->keyblock);
- memset(entry, 0, sizeof(*entry));
- return 0;
-}
-
-/*
- * Set `cursor' to point at the beginning of `id'.
- * Return 0 or an error.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_start_seq_get(krb5_context context,
- krb5_keytab id,
- krb5_kt_cursor *cursor)
-{
- if(id->start_seq_get == NULL) {
- krb5_set_error_string(context,
- "start_seq_get is not supported in the %s "
- " keytab", id->prefix);
- 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_LIB_FUNCTION
-krb5_kt_next_entry(krb5_context context,
- krb5_keytab id,
- krb5_keytab_entry *entry,
- krb5_kt_cursor *cursor)
-{
- if(id->next_entry == NULL) {
- krb5_set_error_string(context,
- "next_entry is not supported in the %s "
- " keytab", id->prefix);
- return HEIM_ERR_OPNOTSUPP;
- }
- return (*id->next_entry)(context, id, entry, cursor);
-}
-
-/*
- * Release all resources associated with `cursor'.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_kt_end_seq_get(krb5_context context,
- krb5_keytab id,
- krb5_kt_cursor *cursor)
-{
- if(id->end_seq_get == NULL) {
- krb5_set_error_string(context,
- "end_seq_get is not supported in the %s "
- " keytab", id->prefix);
- 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_LIB_FUNCTION
-krb5_kt_add_entry(krb5_context context,
- krb5_keytab id,
- krb5_keytab_entry *entry)
-{
- if(id->add == NULL) {
- krb5_set_error_string(context, "Add is not supported in the %s keytab",
- id->prefix);
- 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_LIB_FUNCTION
-krb5_kt_remove_entry(krb5_context context,
- krb5_keytab id,
- krb5_keytab_entry *entry)
-{
- if(id->remove == NULL) {
- krb5_set_error_string(context,
- "Remove is not supported in the %s keytab",
- id->prefix);
- return KRB5_KT_NOWRITE;
- }
- return (*id->remove)(context, id, entry);
-}
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