static isc_result_t
frombuffer(dns_name_t *name, unsigned int alg, unsigned int flags,
unsigned int protocol, dns_rdataclass_t rdclass,
isc_buffer_t *source, isc_mem_t *mctx, dst_key_t **keyp)
{
dst_key_t *key;
isc_result_t ret;
REQUIRE(dns_name_isabsolute(name));
REQUIRE(source != NULL);
REQUIRE(mctx != NULL);
REQUIRE(keyp != NULL && *keyp == NULL);
key = get_key_struct(name, alg, flags, protocol, 0, rdclass, 0, mctx);
if (key == NULL)
return (ISC_R_NOMEMORY);
if (isc_buffer_remaininglength(source) > 0) {
ret = algorithm_status(alg);
if (ret != ISC_R_SUCCESS) {
dst_key_free(&key);
return (ret);
}
if (key->func->fromdns == NULL) {
dst_key_free(&key);
return (DST_R_UNSUPPORTEDALG);
}
ret = key->func->fromdns(key, source);
if (ret != ISC_R_SUCCESS) {
dst_key_free(&key);
return (ret);
}
}
*keyp = key;
return (ISC_R_SUCCESS);
}
isc_result_t
dst_key_fromnamedfile(const char *filename, const char *dirname,
int type, isc_mem_t *mctx, dst_key_t **keyp)
{
isc_result_t result;
dst_key_t *pubkey = NULL, *key = NULL;
char *newfilename = NULL;
int newfilenamelen = 0;
isc_lex_t *lex = NULL;
REQUIRE(dst_initialized == ISC_TRUE);
REQUIRE(filename != NULL);
REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);
REQUIRE(mctx != NULL);
REQUIRE(keyp != NULL && *keyp == NULL);
/* If an absolute path is specified, don't use the key directory */
#ifndef WIN32
if (filename[0] == '/')
dirname = NULL;
#else /* WIN32 */
if (filename[0] == '/' || filename[0] == '\\')
dirname = NULL;
#endif
newfilenamelen = strlen(filename) + 5;
if (dirname != NULL)
newfilenamelen += strlen(dirname) + 1;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
return (ISC_R_NOMEMORY);
result = addsuffix(newfilename, newfilenamelen,
dirname, filename, ".key");
INSIST(result == ISC_R_SUCCESS);
result = dst_key_read_public(newfilename, type, mctx, &pubkey);
isc_mem_put(mctx, newfilename, newfilenamelen);
newfilename = NULL;
RETERR(result);
if ((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) == DST_TYPE_PUBLIC ||
(pubkey->key_flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY) {
result = computeid(pubkey);
if (result != ISC_R_SUCCESS) {
dst_key_free(&pubkey);
return (result);
}
*keyp = pubkey;
return (ISC_R_SUCCESS);
}
result = algorithm_status(pubkey->key_alg);
if (result != ISC_R_SUCCESS) {
dst_key_free(&pubkey);
return (result);
}
key = get_key_struct(pubkey->key_name, pubkey->key_alg,
pubkey->key_flags, pubkey->key_proto, 0,
pubkey->key_class, pubkey->key_ttl, mctx);
if (key == NULL) {
dst_key_free(&pubkey);
return (ISC_R_NOMEMORY);
}
if (key->func->parse == NULL)
RETERR(DST_R_UNSUPPORTEDALG);
newfilenamelen = strlen(filename) + 9;
if (dirname != NULL)
newfilenamelen += strlen(dirname) + 1;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
RETERR(ISC_R_NOMEMORY);
result = addsuffix(newfilename, newfilenamelen,
dirname, filename, ".private");
INSIST(result == ISC_R_SUCCESS);
RETERR(isc_lex_create(mctx, 1500, &lex));
RETERR(isc_lex_openfile(lex, newfilename));
isc_mem_put(mctx, newfilename, newfilenamelen);
RETERR(key->func->parse(key, lex, pubkey));
isc_lex_destroy(&lex);
RETERR(computeid(key));
if (pubkey->key_id != key->key_id)
RETERR(DST_R_INVALIDPRIVATEKEY);
dst_key_free(&pubkey);
*keyp = key;
return (ISC_R_SUCCESS);
out:
if (pubkey != NULL)
dst_key_free(&pubkey);
if (newfilename != NULL)
isc_mem_put(mctx, newfilename, newfilenamelen);
if (lex != NULL)
isc_lex_destroy(&lex);
if (key != NULL)
dst_key_free(&key);
return (result);
}
isc_result_t
dst_key_fromnamedfile(const char *filename, int type, isc_mem_t *mctx,
dst_key_t **keyp)
{
isc_result_t result;
dst_key_t *pubkey = NULL, *key = NULL;
dns_keytag_t id;
char *newfilename = NULL;
int newfilenamelen = 0;
isc_lex_t *lex = NULL;
REQUIRE(dst_initialized == ISC_TRUE);
REQUIRE(filename != NULL);
REQUIRE((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) != 0);
REQUIRE(mctx != NULL);
REQUIRE(keyp != NULL && *keyp == NULL);
newfilenamelen = strlen(filename) + 5;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
return (ISC_R_NOMEMORY);
result = addsuffix(newfilename, newfilenamelen, filename, ".key");
INSIST(result == ISC_R_SUCCESS);
result = dst_key_read_public(newfilename, type, mctx, &pubkey);
isc_mem_put(mctx, newfilename, newfilenamelen);
newfilename = NULL;
if (result != ISC_R_SUCCESS)
return (result);
if ((type & (DST_TYPE_PRIVATE | DST_TYPE_PUBLIC)) == DST_TYPE_PUBLIC ||
(pubkey->key_flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY)
{
result = computeid(pubkey);
if (result != ISC_R_SUCCESS) {
dst_key_free(&pubkey);
return (result);
}
*keyp = pubkey;
return (ISC_R_SUCCESS);
}
result = algorithm_status(pubkey->key_alg);
if (result != ISC_R_SUCCESS) {
dst_key_free(&pubkey);
return (result);
}
key = get_key_struct(pubkey->key_name, pubkey->key_alg,
pubkey->key_flags, pubkey->key_proto, 0,
pubkey->key_class, mctx);
id = pubkey->key_id;
dst_key_free(&pubkey);
if (key == NULL)
return (ISC_R_NOMEMORY);
if (key->func->parse == NULL)
RETERR(DST_R_UNSUPPORTEDALG);
newfilenamelen = strlen(filename) + 9;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
RETERR(ISC_R_NOMEMORY);
result = addsuffix(newfilename, newfilenamelen, filename, ".private");
INSIST(result == ISC_R_SUCCESS);
RETERR(isc_lex_create(mctx, 1500, &lex));
RETERR(isc_lex_openfile(lex, newfilename));
isc_mem_put(mctx, newfilename, newfilenamelen);
RETERR(key->func->parse(key, lex));
isc_lex_destroy(&lex);
RETERR(computeid(key));
if (id != key->key_id)
RETERR(DST_R_INVALIDPRIVATEKEY);
*keyp = key;
return (ISC_R_SUCCESS);
out:
if (newfilename != NULL)
isc_mem_put(mctx, newfilename, newfilenamelen);
if (lex != NULL)
isc_lex_destroy(&lex);
dst_key_free(&key);
return (result);
}