diff options
Diffstat (limited to 'crypto/heimdal/lib/hdb/hdb-mitdb.c')
| -rw-r--r-- | crypto/heimdal/lib/hdb/hdb-mitdb.c | 818 |
1 files changed, 818 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/hdb/hdb-mitdb.c b/crypto/heimdal/lib/hdb/hdb-mitdb.c new file mode 100644 index 0000000..cd619b3 --- /dev/null +++ b/crypto/heimdal/lib/hdb/hdb-mitdb.c @@ -0,0 +1,818 @@ +/* + * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Portions Copyright (c) 2009 Apple Inc. 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. + */ + +#define KRB5_KDB_DISALLOW_POSTDATED 0x00000001 +#define KRB5_KDB_DISALLOW_FORWARDABLE 0x00000002 +#define KRB5_KDB_DISALLOW_TGT_BASED 0x00000004 +#define KRB5_KDB_DISALLOW_RENEWABLE 0x00000008 +#define KRB5_KDB_DISALLOW_PROXIABLE 0x00000010 +#define KRB5_KDB_DISALLOW_DUP_SKEY 0x00000020 +#define KRB5_KDB_DISALLOW_ALL_TIX 0x00000040 +#define KRB5_KDB_REQUIRES_PRE_AUTH 0x00000080 +#define KRB5_KDB_REQUIRES_HW_AUTH 0x00000100 +#define KRB5_KDB_REQUIRES_PWCHANGE 0x00000200 +#define KRB5_KDB_DISALLOW_SVR 0x00001000 +#define KRB5_KDB_PWCHANGE_SERVICE 0x00002000 +#define KRB5_KDB_SUPPORT_DESMD5 0x00004000 +#define KRB5_KDB_NEW_PRINC 0x00008000 + +/* + +key: krb5_unparse_name + NUL + + 16: baselength + 32: attributes + 32: max time + 32: max renewable time + 32: client expire + 32: passwd expire + 32: last successful passwd + 32: last failed attempt + 32: num of failed attempts + 16: num tl data + 16: num data data + 16: principal length + length: principal + for num tl data times + 16: tl data type + 16: tl data length + length: length + for num key data times + 16: version (num keyblocks) + 16: kvno + for version times: + 16: type + 16: length + length: keydata + + +key_data_contents[0] + + int16: length + read-of-data: key-encrypted, key-usage 0, master-key + +salt: + version2 = salt in key_data->key_data_contents[1] + else default salt. + +*/ + +#include "hdb_locl.h" + +#define KDB_V1_BASE_LENGTH 38 + +#if HAVE_DB1 + +#if defined(HAVE_DB_185_H) +#include <db_185.h> +#elif defined(HAVE_DB_H) +#include <db.h> +#endif + +#define CHECK(x) do { if ((x)) goto out; } while(0) + +static krb5_error_code +mdb_principal2key(krb5_context context, + krb5_const_principal principal, + krb5_data *key) +{ + krb5_error_code ret; + char *str; + + ret = krb5_unparse_name(context, principal, &str); + if (ret) + return ret; + key->data = str; + key->length = strlen(str) + 1; + return 0; +} + +#define KRB5_KDB_SALTTYPE_NORMAL 0 +#define KRB5_KDB_SALTTYPE_V4 1 +#define KRB5_KDB_SALTTYPE_NOREALM 2 +#define KRB5_KDB_SALTTYPE_ONLYREALM 3 +#define KRB5_KDB_SALTTYPE_SPECIAL 4 +#define KRB5_KDB_SALTTYPE_AFS3 5 +#define KRB5_KDB_SALTTYPE_CERTHASH 6 + +static krb5_error_code +fix_salt(krb5_context context, hdb_entry *ent, int key_num) +{ + krb5_error_code ret; + Salt *salt = ent->keys.val[key_num].salt; + /* fix salt type */ + switch((int)salt->type) { + case KRB5_KDB_SALTTYPE_NORMAL: + salt->type = KRB5_PADATA_PW_SALT; + break; + case KRB5_KDB_SALTTYPE_V4: + krb5_data_free(&salt->salt); + salt->type = KRB5_PADATA_PW_SALT; + break; + case KRB5_KDB_SALTTYPE_NOREALM: + { + size_t len; + size_t i; + char *p; + + len = 0; + for (i = 0; i < ent->principal->name.name_string.len; ++i) + len += strlen(ent->principal->name.name_string.val[i]); + ret = krb5_data_alloc (&salt->salt, len); + if (ret) + return ret; + p = salt->salt.data; + for (i = 0; i < ent->principal->name.name_string.len; ++i) { + memcpy (p, + ent->principal->name.name_string.val[i], + strlen(ent->principal->name.name_string.val[i])); + p += strlen(ent->principal->name.name_string.val[i]); + } + + salt->type = KRB5_PADATA_PW_SALT; + break; + } + case KRB5_KDB_SALTTYPE_ONLYREALM: + krb5_data_free(&salt->salt); + ret = krb5_data_copy(&salt->salt, + ent->principal->realm, + strlen(ent->principal->realm)); + if(ret) + return ret; + salt->type = KRB5_PADATA_PW_SALT; + break; + case KRB5_KDB_SALTTYPE_SPECIAL: + salt->type = KRB5_PADATA_PW_SALT; + break; + case KRB5_KDB_SALTTYPE_AFS3: + krb5_data_free(&salt->salt); + ret = krb5_data_copy(&salt->salt, + ent->principal->realm, + strlen(ent->principal->realm)); + if(ret) + return ret; + salt->type = KRB5_PADATA_AFS3_SALT; + break; + case KRB5_KDB_SALTTYPE_CERTHASH: + krb5_data_free(&salt->salt); + free(ent->keys.val[key_num].salt); + ent->keys.val[key_num].salt = NULL; + break; + default: + abort(); + } + return 0; +} + + +static krb5_error_code +mdb_value2entry(krb5_context context, krb5_data *data, krb5_kvno kvno, hdb_entry *entry) +{ + krb5_error_code ret; + krb5_storage *sp; + uint32_t u32; + uint16_t u16, num_keys, num_tl; + size_t i, j; + char *p; + + sp = krb5_storage_from_data(data); + if (sp == NULL) { + krb5_set_error_message(context, ENOMEM, "out of memory"); + return ENOMEM; + } + + krb5_storage_set_byteorder(sp, KRB5_STORAGE_BYTEORDER_LE); + + /* + * 16: baselength + * + * The story here is that these 16 bits have to be a constant: + * KDB_V1_BASE_LENGTH. Once upon a time a different value here + * would have been used to indicate the presence of "extra data" + * between the "base" contents and the {principal name, TL data, + * keys} that follow it. Nothing supports such "extra data" + * nowadays, so neither do we here. + * + * XXX But... surely we ought to log about this extra data, or skip + * it, or something, in case anyone has MIT KDBs with ancient + * entries in them... Logging would allow the admin to know which + * entries to dump with MIT krb5's kdb5_util. + */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + if (u16 != KDB_V1_BASE_LENGTH) { ret = EINVAL; goto out; } + /* 32: attributes */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + entry->flags.postdate = !(u32 & KRB5_KDB_DISALLOW_POSTDATED); + entry->flags.forwardable = !(u32 & KRB5_KDB_DISALLOW_FORWARDABLE); + entry->flags.initial = !!(u32 & KRB5_KDB_DISALLOW_TGT_BASED); + entry->flags.renewable = !(u32 & KRB5_KDB_DISALLOW_RENEWABLE); + entry->flags.proxiable = !(u32 & KRB5_KDB_DISALLOW_PROXIABLE); + /* DUP_SKEY */ + entry->flags.invalid = !!(u32 & KRB5_KDB_DISALLOW_ALL_TIX); + entry->flags.require_preauth =!!(u32 & KRB5_KDB_REQUIRES_PRE_AUTH); + entry->flags.require_hwauth =!!(u32 & KRB5_KDB_REQUIRES_HW_AUTH); + entry->flags.server = !(u32 & KRB5_KDB_DISALLOW_SVR); + entry->flags.change_pw = !!(u32 & KRB5_KDB_PWCHANGE_SERVICE); + entry->flags.client = 1; /* XXX */ + + /* 32: max time */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + if (u32) { + entry->max_life = malloc(sizeof(*entry->max_life)); + *entry->max_life = u32; + } + /* 32: max renewable time */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + if (u32) { + entry->max_renew = malloc(sizeof(*entry->max_renew)); + *entry->max_renew = u32; + } + /* 32: client expire */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + if (u32) { + entry->valid_end = malloc(sizeof(*entry->valid_end)); + *entry->valid_end = u32; + } + /* 32: passwd expire */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + if (u32) { + entry->pw_end = malloc(sizeof(*entry->pw_end)); + *entry->pw_end = u32; + } + /* 32: last successful passwd */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + /* 32: last failed attempt */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + /* 32: num of failed attempts */ + CHECK(ret = krb5_ret_uint32(sp, &u32)); + /* 16: num tl data */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + num_tl = u16; + /* 16: num key data */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + num_keys = u16; + /* 16: principal length */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + /* length: principal */ + { + /* + * Note that the principal name includes the NUL in the entry, + * but we don't want to take chances, so we add an extra NUL. + */ + p = malloc(u16 + 1); + if (p == NULL) { + ret = ENOMEM; + goto out; + } + krb5_storage_read(sp, p, u16); + p[u16] = '\0'; + CHECK(ret = krb5_parse_name(context, p, &entry->principal)); + free(p); + } + /* for num tl data times + 16: tl data type + 16: tl data length + length: length */ + for (i = 0; i < num_tl; i++) { + /* 16: TL data type */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + /* 16: TL data length */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + krb5_storage_seek(sp, u16, SEEK_CUR); + } + /* + * for num key data times + * 16: "version" + * 16: kvno + * for version times: + * 16: type + * 16: length + * length: keydata + * + * "version" here is really 1 or 2, the first meaning there's only + * keys for this kvno, the second meaning there's keys and salt[s?]. + * That's right... hold that gag reflex, you can do it. + */ + for (i = 0; i < num_keys; i++) { + int keep = 0; + uint16_t version; + void *ptr; + + CHECK(ret = krb5_ret_uint16(sp, &u16)); + version = u16; + CHECK(ret = krb5_ret_uint16(sp, &u16)); + + /* + * First time through, and until we find one matching key, + * entry->kvno == 0. + */ + if ((entry->kvno < u16) && (kvno == 0 || kvno == u16)) { + keep = 1; + entry->kvno = u16; + /* + * Found a higher kvno than earlier, so free the old highest + * kvno keys. + * + * XXX Of course, we actually want to extract the old kvnos + * as well, for some of the kadm5 APIs. We shouldn't free + * these keys, but keep them elsewhere. + */ + for (j = 0; j < entry->keys.len; j++) + free_Key(&entry->keys.val[j]); + free(entry->keys.val); + entry->keys.len = 0; + entry->keys.val = NULL; + } else if (entry->kvno == u16) + /* Accumulate keys */ + keep = 1; + + if (keep) { + Key *k; + + ptr = realloc(entry->keys.val, sizeof(entry->keys.val[0]) * (entry->keys.len + 1)); + if (ptr == NULL) { + ret = ENOMEM; + goto out; + } + entry->keys.val = ptr; + + /* k points to current Key */ + k = &entry->keys.val[entry->keys.len]; + + memset(k, 0, sizeof(*k)); + entry->keys.len += 1; + + k->mkvno = malloc(sizeof(*k->mkvno)); + if (k->mkvno == NULL) { + ret = ENOMEM; + goto out; + } + *k->mkvno = 1; + + for (j = 0; j < version; j++) { + uint16_t type; + CHECK(ret = krb5_ret_uint16(sp, &type)); + CHECK(ret = krb5_ret_uint16(sp, &u16)); + if (j == 0) { + /* This "version" means we have a key */ + k->key.keytype = type; + if (u16 < 2) { + ret = EINVAL; + goto out; + } + /* + * MIT stores keys encrypted keys as {16-bit length + * of plaintext key, {encrypted key}}. The reason + * for this is that the Kerberos cryptosystem is not + * length-preserving. Heimdal's approach is to + * truncate the plaintext to the expected length of + * the key given its enctype, so we ignore this + * 16-bit length-of-plaintext-key field. + */ + krb5_storage_seek(sp, 2, SEEK_CUR); /* skip real length */ + k->key.keyvalue.length = u16 - 2; /* adjust cipher len */ + k->key.keyvalue.data = malloc(k->key.keyvalue.length); + krb5_storage_read(sp, k->key.keyvalue.data, + k->key.keyvalue.length); + } else if (j == 1) { + /* This "version" means we have a salt */ + k->salt = calloc(1, sizeof(*k->salt)); + if (k->salt == NULL) { + ret = ENOMEM; + goto out; + } + k->salt->type = type; + if (u16 != 0) { + k->salt->salt.data = malloc(u16); + if (k->salt->salt.data == NULL) { + ret = ENOMEM; + goto out; + } + k->salt->salt.length = u16; + krb5_storage_read(sp, k->salt->salt.data, k->salt->salt.length); + } + fix_salt(context, entry, entry->keys.len - 1); + } else { + /* + * Whatever this "version" might be, we skip it + * + * XXX A krb5.conf parameter requesting that we log + * about strangeness like this, or return an error + * from here, might be nice. + */ + krb5_storage_seek(sp, u16, SEEK_CUR); + } + } + } else { + /* + * XXX For now we skip older kvnos, but we should extract + * them... + */ + for (j = 0; j < version; j++) { + /* enctype */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + /* encrypted key (or plaintext salt) */ + CHECK(ret = krb5_ret_uint16(sp, &u16)); + krb5_storage_seek(sp, u16, SEEK_CUR); + } + } + } + + if (entry->kvno == 0 && kvno != 0) { + ret = HDB_ERR_NOT_FOUND_HERE; + goto out; + } + + return 0; + out: + if (ret == HEIM_ERR_EOF) + /* Better error code than "end of file" */ + ret = HEIM_ERR_BAD_HDBENT_ENCODING; + return ret; +} + +#if 0 +static krb5_error_code +mdb_entry2value(krb5_context context, hdb_entry *entry, krb5_data *data) +{ + return EINVAL; +} +#endif + + +static krb5_error_code +mdb_close(krb5_context context, HDB *db) +{ + DB *d = (DB*)db->hdb_db; + (*d->close)(d); + return 0; +} + +static krb5_error_code +mdb_destroy(krb5_context context, HDB *db) +{ + krb5_error_code ret; + + ret = hdb_clear_master_key (context, db); + free(db->hdb_name); + free(db); + return ret; +} + +static krb5_error_code +mdb_lock(krb5_context context, HDB *db, int operation) +{ + DB *d = (DB*)db->hdb_db; + int fd = (*d->fd)(d); + if(fd < 0) { + krb5_set_error_message(context, HDB_ERR_CANT_LOCK_DB, + "Can't lock database: %s", db->hdb_name); + return HDB_ERR_CANT_LOCK_DB; + } + return hdb_lock(fd, operation); +} + +static krb5_error_code +mdb_unlock(krb5_context context, HDB *db) +{ + DB *d = (DB*)db->hdb_db; + int fd = (*d->fd)(d); + if(fd < 0) { + krb5_set_error_message(context, HDB_ERR_CANT_LOCK_DB, + "Can't unlock database: %s", db->hdb_name); + return HDB_ERR_CANT_LOCK_DB; + } + return hdb_unlock(fd); +} + + +static krb5_error_code +mdb_seq(krb5_context context, HDB *db, + unsigned flags, hdb_entry_ex *entry, int flag) +{ + DB *d = (DB*)db->hdb_db; + DBT key, value; + krb5_data key_data, data; + int code; + + code = db->hdb_lock(context, db, HDB_RLOCK); + if(code == -1) { + krb5_set_error_message(context, HDB_ERR_DB_INUSE, "Database %s in use", db->hdb_name); + return HDB_ERR_DB_INUSE; + } + code = (*d->seq)(d, &key, &value, flag); + db->hdb_unlock(context, db); /* XXX check value */ + if(code == -1) { + code = errno; + krb5_set_error_message(context, code, "Database %s seq error: %s", + db->hdb_name, strerror(code)); + return code; + } + if(code == 1) { + krb5_clear_error_message(context); + return HDB_ERR_NOENTRY; + } + + key_data.data = key.data; + key_data.length = key.size; + data.data = value.data; + data.length = value.size; + memset(entry, 0, sizeof(*entry)); + + if (mdb_value2entry(context, &data, 0, &entry->entry)) + return mdb_seq(context, db, flags, entry, R_NEXT); + + if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) { + code = hdb_unseal_keys (context, db, &entry->entry); + if (code) + hdb_free_entry (context, entry); + } + + return code; +} + + +static krb5_error_code +mdb_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry) +{ + return mdb_seq(context, db, flags, entry, R_FIRST); +} + + +static krb5_error_code +mdb_nextkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry) +{ + return mdb_seq(context, db, flags, entry, R_NEXT); +} + +static krb5_error_code +mdb_rename(krb5_context context, HDB *db, const char *new_name) +{ + int ret; + char *old, *new; + + asprintf(&old, "%s.db", db->hdb_name); + asprintf(&new, "%s.db", new_name); + ret = rename(old, new); + free(old); + free(new); + if(ret) + return errno; + + free(db->hdb_name); + db->hdb_name = strdup(new_name); + return 0; +} + +static krb5_error_code +mdb__get(krb5_context context, HDB *db, krb5_data key, krb5_data *reply) +{ + DB *d = (DB*)db->hdb_db; + DBT k, v; + int code; + + k.data = key.data; + k.size = key.length; + code = db->hdb_lock(context, db, HDB_RLOCK); + if(code) + return code; + code = (*d->get)(d, &k, &v, 0); + db->hdb_unlock(context, db); + if(code < 0) { + code = errno; + krb5_set_error_message(context, code, "Database %s get error: %s", + db->hdb_name, strerror(code)); + return code; + } + if(code == 1) { + krb5_clear_error_message(context); + return HDB_ERR_NOENTRY; + } + + krb5_data_copy(reply, v.data, v.size); + return 0; +} + +static krb5_error_code +mdb__put(krb5_context context, HDB *db, int replace, + krb5_data key, krb5_data value) +{ + DB *d = (DB*)db->hdb_db; + DBT k, v; + int code; + + k.data = key.data; + k.size = key.length; + v.data = value.data; + v.size = value.length; + code = db->hdb_lock(context, db, HDB_WLOCK); + if(code) + return code; + code = (*d->put)(d, &k, &v, replace ? 0 : R_NOOVERWRITE); + db->hdb_unlock(context, db); + if(code < 0) { + code = errno; + krb5_set_error_message(context, code, "Database %s put error: %s", + db->hdb_name, strerror(code)); + return code; + } + if(code == 1) { + krb5_clear_error_message(context); + return HDB_ERR_EXISTS; + } + return 0; +} + +static krb5_error_code +mdb__del(krb5_context context, HDB *db, krb5_data key) +{ + DB *d = (DB*)db->hdb_db; + DBT k; + krb5_error_code code; + k.data = key.data; + k.size = key.length; + code = db->hdb_lock(context, db, HDB_WLOCK); + if(code) + return code; + code = (*d->del)(d, &k, 0); + db->hdb_unlock(context, db); + if(code == 1) { + code = errno; + krb5_set_error_message(context, code, "Database %s put error: %s", + db->hdb_name, strerror(code)); + return code; + } + if(code < 0) + return errno; + return 0; +} + +static krb5_error_code +mdb_fetch_kvno(krb5_context context, HDB *db, krb5_const_principal principal, + unsigned flags, krb5_kvno kvno, hdb_entry_ex *entry) +{ + krb5_data key, value; + krb5_error_code code; + + code = mdb_principal2key(context, principal, &key); + if (code) + return code; + code = db->hdb__get(context, db, key, &value); + krb5_data_free(&key); + if(code) + return code; + code = mdb_value2entry(context, &value, kvno, &entry->entry); + krb5_data_free(&value); + if (code) + return code; + + if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) { + code = hdb_unseal_keys (context, db, &entry->entry); + if (code) + hdb_free_entry(context, entry); + } + + return 0; +} + +static krb5_error_code +mdb_store(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry) +{ + krb5_set_error_message(context, EINVAL, "can't set principal in mdb"); + return EINVAL; +} + +static krb5_error_code +mdb_remove(krb5_context context, HDB *db, krb5_const_principal principal) +{ + krb5_error_code code; + krb5_data key; + + mdb_principal2key(context, principal, &key); + code = db->hdb__del(context, db, key); + krb5_data_free(&key); + return code; +} + +static krb5_error_code +mdb_open(krb5_context context, HDB *db, int flags, mode_t mode) +{ + char *fn; + krb5_error_code ret; + + asprintf(&fn, "%s.db", db->hdb_name); + if (fn == NULL) { + krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); + return ENOMEM; + } + db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL); + free(fn); + + if (db->hdb_db == NULL) { + switch (errno) { +#ifdef EFTYPE + case EFTYPE: +#endif + case EINVAL: + db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL); + } + } + + /* try to open without .db extension */ + if(db->hdb_db == NULL && errno == ENOENT) + db->hdb_db = dbopen(db->hdb_name, flags, mode, DB_BTREE, NULL); + if(db->hdb_db == NULL) { + ret = errno; + krb5_set_error_message(context, ret, "dbopen (%s): %s", + db->hdb_name, strerror(ret)); + return ret; + } + if((flags & O_ACCMODE) == O_RDONLY) + ret = hdb_check_db_format(context, db); + else + ret = hdb_init_db(context, db); + if(ret == HDB_ERR_NOENTRY) { + krb5_clear_error_message(context); + return 0; + } + if (ret) { + mdb_close(context, db); + krb5_set_error_message(context, ret, "hdb_open: failed %s database %s", + (flags & O_ACCMODE) == O_RDONLY ? + "checking format of" : "initialize", + db->hdb_name); + } + return ret; +} + +krb5_error_code +hdb_mdb_create(krb5_context context, HDB **db, + const char *filename) +{ + *db = calloc(1, sizeof(**db)); + if (*db == NULL) { + krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); + return ENOMEM; + } + + (*db)->hdb_db = NULL; + (*db)->hdb_name = strdup(filename); + if ((*db)->hdb_name == NULL) { + free(*db); + *db = NULL; + krb5_set_error_message(context, ENOMEM, "malloc: out of memory"); + return ENOMEM; + } + (*db)->hdb_master_key_set = 0; + (*db)->hdb_openp = 0; + (*db)->hdb_capability_flags = 0; + (*db)->hdb_open = mdb_open; + (*db)->hdb_close = mdb_close; + (*db)->hdb_fetch_kvno = mdb_fetch_kvno; + (*db)->hdb_store = mdb_store; + (*db)->hdb_remove = mdb_remove; + (*db)->hdb_firstkey = mdb_firstkey; + (*db)->hdb_nextkey= mdb_nextkey; + (*db)->hdb_lock = mdb_lock; + (*db)->hdb_unlock = mdb_unlock; + (*db)->hdb_rename = mdb_rename; + (*db)->hdb__get = mdb__get; + (*db)->hdb__put = mdb__put; + (*db)->hdb__del = mdb__del; + (*db)->hdb_destroy = mdb_destroy; + return 0; +} + +#endif /* HAVE_DB1 */ |
