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ruby--ruby/ext/openssl/ossl_ssl.c
akr 0517b43c5b banish some warnings. 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2005-09-24 00:17:43 +00:00

933 lines
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/*
* $Id$
* 'OpenSSL for Ruby' project
* Copyright (C) 2000-2002 GOTOU Yuuzou <gotoyuzo@notwork.org>
* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
* All rights reserved.
*/
/*
* This program is licenced under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
#include <rubysig.h>
#include <rubyio.h>
#if defined(HAVE_UNISTD_H)
# include <unistd.h> /* for read(), and write() */
#endif
#define numberof(ary) (sizeof(ary)/sizeof(ary[0]))
#ifdef _WIN32
# define TO_SOCKET(s) _get_osfhandle(s)
#else
# define TO_SOCKET(s) s
#endif
VALUE mSSL;
VALUE eSSLError;
VALUE cSSLContext;
VALUE cSSLSocket;
#define ossl_sslctx_set_cert(o,v) rb_iv_set((o),"@cert",(v))
#define ossl_sslctx_set_key(o,v) rb_iv_set((o),"@key",(v))
#define ossl_sslctx_set_client_ca(o,v) rb_iv_set((o),"@client_ca",(v))
#define ossl_sslctx_set_ca_file(o,v) rb_iv_set((o),"@ca_file",(v))
#define ossl_sslctx_set_ca_path(o,v) rb_iv_set((o),"@ca_path",(v))
#define ossl_sslctx_set_timeout(o,v) rb_iv_set((o),"@timeout",(v))
#define ossl_sslctx_set_verify_mode(o,v) rb_iv_set((o),"@verify_mode",(v))
#define ossl_sslctx_set_verify_dep(o,v) rb_iv_set((o),"@verify_depth",(v))
#define ossl_sslctx_set_verify_cb(o,v) rb_iv_set((o),"@verify_callback",(v))
#define ossl_sslctx_set_options(o,v) rb_iv_set((o),"@options",(v))
#define ossl_sslctx_set_cert_store(o,v) rb_iv_set((o),"@cert_store",(v))
#define ossl_sslctx_set_extra_cert(o,v) rb_iv_set((o),"@extra_chain_cert",(v))
#define ossl_sslctx_set_client_cert_cb(o,v) rb_iv_set((o),"@client_cert_cb",(v))
#define ossl_sslctx_set_tmp_dh_cb(o,v) rb_iv_set((o),"@tmp_dh_callback",(v))
#define ossl_sslctx_set_sess_id_ctx(o, v) rb_iv_get((o),"@session_id_context"(v))
#define ossl_sslctx_get_cert(o) rb_iv_get((o),"@cert")
#define ossl_sslctx_get_key(o) rb_iv_get((o),"@key")
#define ossl_sslctx_get_client_ca(o) rb_iv_get((o),"@client_ca")
#define ossl_sslctx_get_ca_file(o) rb_iv_get((o),"@ca_file")
#define ossl_sslctx_get_ca_path(o) rb_iv_get((o),"@ca_path")
#define ossl_sslctx_get_timeout(o) rb_iv_get((o),"@timeout")
#define ossl_sslctx_get_verify_mode(o) rb_iv_get((o),"@verify_mode")
#define ossl_sslctx_get_verify_dep(o) rb_iv_get((o),"@verify_depth")
#define ossl_sslctx_get_verify_cb(o) rb_iv_get((o),"@verify_callback")
#define ossl_sslctx_get_options(o) rb_iv_get((o),"@options")
#define ossl_sslctx_get_cert_store(o) rb_iv_get((o),"@cert_store")
#define ossl_sslctx_get_extra_cert(o) rb_iv_get((o),"@extra_chain_cert")
#define ossl_sslctx_get_client_cert_cb(o) rb_iv_get((o),"@client_cert_cb")
#define ossl_sslctx_get_tmp_dh_cb(o) rb_iv_get((o),"@tmp_dh_callback")
#define ossl_sslctx_get_sess_id_ctx(o) rb_iv_get((o),"@session_id_context")
static char *ossl_sslctx_attrs[] = {
"cert", "key", "client_ca", "ca_file", "ca_path",
"timeout", "verify_mode", "verify_depth",
"verify_callback", "options", "cert_store", "extra_chain_cert",
"client_cert_cb", "tmp_dh_callback", "session_id_context",
};
#define ossl_ssl_get_io(o) rb_iv_get((o),"@io")
#define ossl_ssl_get_ctx(o) rb_iv_get((o),"@context")
#define ossl_ssl_get_sync_close(o) rb_iv_get((o),"@sync_close")
#define ossl_ssl_get_x509(o) rb_iv_get((o),"@x509")
#define ossl_ssl_get_key(o) rb_iv_get((o),"@key")
#define ossl_ssl_get_tmp_dh(o) rb_iv_get((o),"@tmp_dh")
#define ossl_ssl_set_io(o,v) rb_iv_set((o),"@io",(v))
#define ossl_ssl_set_ctx(o,v) rb_iv_set((o),"@context",(v))
#define ossl_ssl_set_sync_close(o,v) rb_iv_set((o),"@sync_close",(v))
#define ossl_ssl_set_x509(o,v) rb_iv_set((o),"@x509",(v))
#define ossl_ssl_set_key(o,v) rb_iv_set((o),"@key",(v))
#define ossl_ssl_set_tmp_dh(o,v) rb_iv_set((o),"@tmp_dh",(v))
static char *ossl_ssl_attr_readers[] = { "io", "context", };
static char *ossl_ssl_attrs[] = { "sync_close", };
/*
* SSLContext class
*/
struct {
const char *name;
SSL_METHOD *(*func)(void);
} ossl_ssl_method_tab[] = {
#define OSSL_SSL_METHOD_ENTRY(name) { #name, name##_method }
OSSL_SSL_METHOD_ENTRY(TLSv1),
OSSL_SSL_METHOD_ENTRY(TLSv1_server),
OSSL_SSL_METHOD_ENTRY(TLSv1_client),
OSSL_SSL_METHOD_ENTRY(SSLv2),
OSSL_SSL_METHOD_ENTRY(SSLv2_server),
OSSL_SSL_METHOD_ENTRY(SSLv2_client),
OSSL_SSL_METHOD_ENTRY(SSLv3),
OSSL_SSL_METHOD_ENTRY(SSLv3_server),
OSSL_SSL_METHOD_ENTRY(SSLv3_client),
OSSL_SSL_METHOD_ENTRY(SSLv23),
OSSL_SSL_METHOD_ENTRY(SSLv23_server),
OSSL_SSL_METHOD_ENTRY(SSLv23_client),
#undef OSSL_SSL_METHOD_ENTRY
};
int ossl_ssl_ex_vcb_idx;
int ossl_ssl_ex_store_p;
int ossl_ssl_ex_ptr_idx;
int ossl_ssl_ex_client_cert_cb_idx;
int ossl_ssl_ex_tmp_dh_callback_idx;
static void
ossl_sslctx_free(SSL_CTX *ctx)
{
if(ctx && SSL_CTX_get_ex_data(ctx, ossl_ssl_ex_store_p)== (void*)1)
ctx->cert_store = NULL;
SSL_CTX_free(ctx);
}
static VALUE
ossl_sslctx_s_alloc(VALUE klass)
{
SSL_CTX *ctx;
ctx = SSL_CTX_new(SSLv23_method());
if (!ctx) {
ossl_raise(eSSLError, "SSL_CTX_new:");
}
SSL_CTX_set_mode(ctx, SSL_MODE_ENABLE_PARTIAL_WRITE);
SSL_CTX_set_options(ctx, SSL_OP_ALL);
return Data_Wrap_Struct(klass, 0, ossl_sslctx_free, ctx);
}
static VALUE
ossl_sslctx_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE ssl_method;
SSL_METHOD *method = NULL;
SSL_CTX *ctx;
int i;
char *s;
for(i = 0; i < numberof(ossl_sslctx_attrs); i++){
char buf[32];
snprintf(buf, sizeof(buf), "@%s", ossl_sslctx_attrs[i]);
rb_iv_set(self, buf, Qnil);
}
if (rb_scan_args(argc, argv, "01", &ssl_method) == 0){
return self;
}
if(TYPE(ssl_method) == T_SYMBOL)
s = rb_id2name(SYM2ID(ssl_method));
else
s = StringValuePtr(ssl_method);
for (i = 0; i < numberof(ossl_ssl_method_tab); i++) {
if (strcmp(ossl_ssl_method_tab[i].name, s) == 0) {
method = ossl_ssl_method_tab[i].func();
break;
}
}
if (!method) {
ossl_raise(rb_eArgError, "unknown SSL method `%s'.", s);
}
Data_Get_Struct(self, SSL_CTX, ctx);
if (SSL_CTX_set_ssl_version(ctx, method) != 1) {
ossl_raise(eSSLError, "SSL_CTX_set_ssl_version:");
}
return self;
}
static VALUE
ossl_call_client_cert_cb(VALUE obj)
{
VALUE cb, ary, cert, key;
SSL *ssl;
Data_Get_Struct(obj, SSL, ssl);
cb = (VALUE)SSL_get_ex_data(ssl, ossl_ssl_ex_client_cert_cb_idx);
if (NIL_P(cb)) return Qfalse;
ary = rb_funcall(cb, rb_intern("call"), 1, obj);
Check_Type(ary, T_ARRAY);
GetX509CertPtr(cert = rb_ary_entry(ary, 0));
GetPKeyPtr(key = rb_ary_entry(ary, 1));
ossl_ssl_set_x509(obj, cert);
ossl_ssl_set_key(obj, key);
return Qtrue;
}
static int
ossl_client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
{
VALUE obj;
int status, success;
obj = (VALUE)SSL_get_ex_data(ssl, ossl_ssl_ex_ptr_idx);
success = rb_protect((VALUE(*)_((VALUE)))ossl_call_client_cert_cb,
obj, &status);
if (status || !success) return 0;
*x509 = DupX509CertPtr(ossl_ssl_get_x509(obj));
*pkey = DupPKeyPtr(ossl_ssl_get_key(obj));
return 1;
}
#if !defined(OPENSSL_NO_DH)
static VALUE
ossl_call_tmp_dh_callback(VALUE *args)
{
SSL *ssl;
VALUE cb, dh;
EVP_PKEY *pkey;
Data_Get_Struct(args[0], SSL, ssl);
cb = (VALUE)SSL_get_ex_data(ssl, ossl_ssl_ex_tmp_dh_callback_idx);
if (NIL_P(cb)) return Qfalse;
dh = rb_funcall(cb, rb_intern("call"), 3, args[0], args[1], args[2]);
pkey = GetPKeyPtr(dh);
if (EVP_PKEY_type(pkey->type) != EVP_PKEY_DH) return Qfalse;
ossl_ssl_set_tmp_dh(args[0], dh);
return Qtrue;
}
static DH*
ossl_tmp_dh_callback(SSL *ssl, int is_export, int keylength)
{
VALUE args[3];
int status, success;
args[0] = (VALUE)SSL_get_ex_data(ssl, ossl_ssl_ex_ptr_idx);
args[1] = INT2FIX(is_export);
args[2] = INT2FIX(keylength);
success = rb_protect((VALUE(*)_((VALUE)))ossl_call_tmp_dh_callback,
(VALUE)args, &status);
if (status || !success) return NULL;
return GetPKeyPtr(ossl_ssl_get_tmp_dh(args[0]))->pkey.dh;
}
static DH*
ossl_default_tmp_dh_callback(SSL *ssl, int is_export, int keylength)
{
switch(keylength){
case 512:
return OSSL_DEFAULT_DH_512;
case 1024:
return OSSL_DEFAULT_DH_1024;
}
return NULL;
}
#endif /* OPENSSL_NO_DH */
static int
ossl_ssl_verify_callback(int preverify_ok, X509_STORE_CTX *ctx)
{
VALUE cb;
SSL *ssl;
ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
cb = (VALUE)SSL_get_ex_data(ssl, ossl_ssl_ex_vcb_idx);
X509_STORE_CTX_set_ex_data(ctx, ossl_verify_cb_idx, (void*)cb);
return ossl_verify_cb(preverify_ok, ctx);
}
static VALUE
ossl_sslctx_add_extra_chain_cert_i(VALUE i, VALUE arg)
{
X509 *x509;
SSL_CTX *ctx;
Data_Get_Struct(arg, SSL_CTX, ctx);
x509 = DupX509CertPtr(i);
if(!SSL_CTX_add_extra_chain_cert(ctx, x509)){
ossl_raise(eSSLError, NULL);
}
return i;
}
static VALUE
ossl_sslctx_setup(VALUE self)
{
SSL_CTX *ctx;
X509 *cert = NULL, *client_ca = NULL;
X509_STORE *store;
EVP_PKEY *key = NULL;
char *ca_path = NULL, *ca_file = NULL;
int i, verify_mode;
VALUE val;
if(OBJ_FROZEN(self)) return Qnil;
Data_Get_Struct(self, SSL_CTX, ctx);
#if !defined(OPENSSL_NO_DH)
if (RTEST(ossl_sslctx_get_tmp_dh_cb(self))){
SSL_CTX_set_tmp_dh_callback(ctx, ossl_tmp_dh_callback);
}
else{
rb_warning("using default DH parameters.");
SSL_CTX_set_tmp_dh_callback(ctx, ossl_default_tmp_dh_callback);
}
#endif
val = ossl_sslctx_get_cert_store(self);
if(!NIL_P(val)){
/*
* WORKAROUND:
* X509_STORE can count references, but
* X509_STORE_free() doesn't care it.
* So we won't increment it but mark it by ex_data.
*/
store = GetX509StorePtr(val); /* NO NEED TO DUP */
SSL_CTX_set_cert_store(ctx, store);
SSL_CTX_set_ex_data(ctx, ossl_ssl_ex_store_p, (void*)1);
}
val = ossl_sslctx_get_extra_cert(self);
if(!NIL_P(val)){
rb_iterate(rb_each, val, ossl_sslctx_add_extra_chain_cert_i, self);
}
/* private key may be bundled in certificate file. */
val = ossl_sslctx_get_cert(self);
cert = NIL_P(val) ? NULL : GetX509CertPtr(val); /* NO DUP NEEDED */
val = ossl_sslctx_get_key(self);
key = NIL_P(val) ? NULL : GetPKeyPtr(val); /* NO DUP NEEDED */
if (cert && key) {
if (!SSL_CTX_use_certificate(ctx, cert)) {
/* Adds a ref => Safe to FREE */
ossl_raise(eSSLError, "SSL_CTX_use_certificate:");
}
if (!SSL_CTX_use_PrivateKey(ctx, key)) {
/* Adds a ref => Safe to FREE */
ossl_raise(eSSLError, "SSL_CTX_use_PrivateKey:");
}
if (!SSL_CTX_check_private_key(ctx)) {
ossl_raise(eSSLError, "SSL_CTX_check_private_key:");
}
}
val = ossl_sslctx_get_client_ca(self);
if(!NIL_P(val)){
if(TYPE(val) == T_ARRAY){
for(i = 0; i < RARRAY(val)->len; i++){
client_ca = GetX509CertPtr(RARRAY(val)->ptr[i]);
if (!SSL_CTX_add_client_CA(ctx, client_ca)){
/* Copies X509_NAME => FREE it. */
ossl_raise(eSSLError, "SSL_CTX_add_client_CA");
}
}
}
else{
client_ca = GetX509CertPtr(val); /* NO DUP NEEDED. */
if (!SSL_CTX_add_client_CA(ctx, client_ca)){
/* Copies X509_NAME => FREE it. */
ossl_raise(eSSLError, "SSL_CTX_add_client_CA");
}
}
}
val = ossl_sslctx_get_ca_file(self);
ca_file = NIL_P(val) ? NULL : StringValuePtr(val);
val = ossl_sslctx_get_ca_path(self);
ca_path = NIL_P(val) ? NULL : StringValuePtr(val);
if(ca_file || ca_path){
if (!SSL_CTX_load_verify_locations(ctx, ca_file, ca_path))
rb_warning("can't set verify locations");
}
val = ossl_sslctx_get_verify_mode(self);
verify_mode = NIL_P(val) ? SSL_VERIFY_NONE : NUM2INT(val);
SSL_CTX_set_verify(ctx, verify_mode, ossl_ssl_verify_callback);
if (RTEST(ossl_sslctx_get_client_cert_cb(self)))
SSL_CTX_set_client_cert_cb(ctx, ossl_client_cert_cb);
val = ossl_sslctx_get_timeout(self);
if(!NIL_P(val)) SSL_CTX_set_timeout(ctx, NUM2LONG(val));
val = ossl_sslctx_get_verify_dep(self);
if(!NIL_P(val)) SSL_CTX_set_verify_depth(ctx, NUM2LONG(val));
val = ossl_sslctx_get_options(self);
if(!NIL_P(val)) SSL_CTX_set_options(ctx, NUM2LONG(val));
rb_obj_freeze(self);
val = ossl_sslctx_get_sess_id_ctx(self);
if (!NIL_P(val)){
StringValue(val);
if (!SSL_CTX_set_session_id_context(ctx, RSTRING(val)->ptr,
RSTRING(val)->len)){
ossl_raise(eSSLError, "SSL_CTX_set_session_id_context:");
}
}
return Qtrue;
}
static VALUE
ossl_ssl_cipher_to_ary(SSL_CIPHER *cipher)
{
VALUE ary;
int bits, alg_bits;
ary = rb_ary_new2(4);
rb_ary_push(ary, rb_str_new2(SSL_CIPHER_get_name(cipher)));
rb_ary_push(ary, rb_str_new2(SSL_CIPHER_get_version(cipher)));
bits = SSL_CIPHER_get_bits(cipher, &alg_bits);
rb_ary_push(ary, INT2FIX(bits));
rb_ary_push(ary, INT2FIX(alg_bits));
return ary;
}
static VALUE
ossl_sslctx_get_ciphers(VALUE self)
{
SSL_CTX *ctx;
STACK_OF(SSL_CIPHER) *ciphers;
SSL_CIPHER *cipher;
VALUE ary;
int i, num;
Data_Get_Struct(self, SSL_CTX, ctx);
if(!ctx){
rb_warning("SSL_CTX is not initialized.");
return Qnil;
}
ciphers = ctx->cipher_list;
if (!ciphers)
return rb_ary_new();
num = sk_num((STACK*)ciphers);
ary = rb_ary_new2(num);
for(i = 0; i < num; i++){
cipher = (SSL_CIPHER*)sk_value((STACK*)ciphers, i);
rb_ary_push(ary, ossl_ssl_cipher_to_ary(cipher));
}
return ary;
}
static VALUE
ossl_sslctx_set_ciphers(VALUE self, VALUE v)
{
SSL_CTX *ctx;
VALUE str, elem;
int i;
rb_check_frozen(self);
if (NIL_P(v))
return v;
else if (TYPE(v) == T_ARRAY) {
str = rb_str_new2(NULL);
for (i = 0; i < RARRAY(v)->len; i++) {
elem = rb_ary_entry(v, i);
if (TYPE(elem) == T_ARRAY) elem = rb_ary_entry(elem, 0);
elem = rb_String(elem);
rb_str_append(str, elem);
if (i < RARRAY(v)->len-1) rb_str_cat2(str, ":");
}
} else {
str = v;
StringValue(str);
}
Data_Get_Struct(self, SSL_CTX, ctx);
if(!ctx){
ossl_raise(eSSLError, "SSL_CTX is not initialized.");
return Qnil;
}
if (!SSL_CTX_set_cipher_list(ctx, RSTRING(str)->ptr)) {
ossl_raise(eSSLError, "SSL_CTX_set_cipher_list:");
}
return v;
}
/*
* SSLSocket class
*/
static void
ossl_ssl_shutdown(SSL *ssl)
{
if (ssl) {
SSL_shutdown(ssl);
SSL_clear(ssl);
}
}
static void
ossl_ssl_free(SSL *ssl)
{
ossl_ssl_shutdown(ssl);
SSL_free(ssl);
}
static VALUE
ossl_ssl_s_alloc(VALUE klass)
{
return Data_Wrap_Struct(klass, 0, ossl_ssl_free, NULL);
}
static VALUE
ossl_ssl_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE io, ctx;
if (rb_scan_args(argc, argv, "11", &io, &ctx) == 1) {
ctx = rb_funcall(cSSLContext, rb_intern("new"), 0);
}
OSSL_Check_Kind(ctx, cSSLContext);
Check_Type(io, T_FILE);
ossl_ssl_set_io(self, io);
ossl_ssl_set_ctx(self, ctx);
ossl_ssl_set_sync_close(self, Qfalse);
ossl_sslctx_setup(ctx);
rb_call_super(0, 0);
return self;
}
static VALUE
ossl_ssl_setup(VALUE self)
{
VALUE io, v_ctx, cb;
SSL_CTX *ctx;
SSL *ssl;
OpenFile *fptr;
Data_Get_Struct(self, SSL, ssl);
if(!ssl){
v_ctx = ossl_ssl_get_ctx(self);
Data_Get_Struct(v_ctx, SSL_CTX, ctx);
ssl = SSL_new(ctx);
if (!ssl) {
ossl_raise(eSSLError, "SSL_new:");
}
DATA_PTR(self) = ssl;
io = ossl_ssl_get_io(self);
GetOpenFile(io, fptr);
rb_io_check_readable(fptr);
rb_io_check_writable(fptr);
SSL_set_fd(ssl, TO_SOCKET(fptr->fd));
SSL_set_ex_data(ssl, ossl_ssl_ex_ptr_idx, (void*)self);
cb = ossl_sslctx_get_verify_cb(v_ctx);
SSL_set_ex_data(ssl, ossl_ssl_ex_vcb_idx, (void*)cb);
cb = ossl_sslctx_get_client_cert_cb(v_ctx);
SSL_set_ex_data(ssl, ossl_ssl_ex_client_cert_cb_idx, (void*)cb);
cb = ossl_sslctx_get_tmp_dh_cb(v_ctx);
SSL_set_ex_data(ssl, ossl_ssl_ex_tmp_dh_callback_idx, (void*)cb);
}
return Qtrue;
}
#ifdef _WIN32
#define ssl_get_error(ssl, ret) (errno = WSAGetLastError(), SSL_get_error(ssl, ret))
#else
#define ssl_get_error(ssl, ret) SSL_get_error(ssl, ret)
#endif
static VALUE
ossl_start_ssl(VALUE self, int (*func)())
{
SSL *ssl;
OpenFile *fptr;
int ret;
Data_Get_Struct(self, SSL, ssl);
GetOpenFile(ossl_ssl_get_io(self), fptr);
for(;;){
if((ret = func(ssl)) > 0) break;
switch(ssl_get_error(ssl, ret)){
case SSL_ERROR_WANT_WRITE:
rb_io_wait_writable(fptr->fd);
continue;
case SSL_ERROR_WANT_READ:
rb_io_wait_readable(fptr->fd);
continue;
case SSL_ERROR_SYSCALL:
if (errno) rb_sys_fail(0);
default:
ossl_raise(eSSLError, NULL);
}
}
return self;
}
static VALUE
ossl_ssl_connect(VALUE self)
{
ossl_ssl_setup(self);
return ossl_start_ssl(self, SSL_connect);
}
static VALUE
ossl_ssl_accept(VALUE self)
{
ossl_ssl_setup(self);
return ossl_start_ssl(self, SSL_accept);
}
static VALUE
ossl_ssl_read(int argc, VALUE *argv, VALUE self)
{
SSL *ssl;
int ilen, nread = 0;
VALUE len, str;
OpenFile *fptr;
rb_scan_args(argc, argv, "11", &len, &str);
ilen = NUM2INT(len);
if(NIL_P(str)) str = rb_str_new(0, ilen);
else{
StringValue(str);
rb_str_modify(str);
rb_str_resize(str, ilen);
}
if(ilen == 0) return str;
Data_Get_Struct(self, SSL, ssl);
GetOpenFile(ossl_ssl_get_io(self), fptr);
if (ssl) {
if(SSL_pending(ssl) <= 0)
rb_thread_wait_fd(fptr->fd);
for (;;){
nread = SSL_read(ssl, RSTRING(str)->ptr, RSTRING(str)->len);
switch(ssl_get_error(ssl, nread)){
case SSL_ERROR_NONE:
goto end;
case SSL_ERROR_ZERO_RETURN:
rb_eof_error();
case SSL_ERROR_WANT_WRITE:
rb_io_wait_writable(fptr->fd);
continue;
case SSL_ERROR_WANT_READ:
rb_io_wait_readable(fptr->fd);
continue;
case SSL_ERROR_SYSCALL:
if(ERR_peek_error() == 0 && nread == 0) rb_eof_error();
rb_sys_fail(0);
default:
ossl_raise(eSSLError, "SSL_read:");
}
}
}
else {
ID id_sysread = rb_intern("sysread");
rb_warning("SSL session is not started yet.");
return rb_funcall(ossl_ssl_get_io(self), id_sysread, 2, len, str);
}
end:
RSTRING(str)->len = nread;
RSTRING(str)->ptr[nread] = 0;
OBJ_TAINT(str);
return str;
}
static VALUE
ossl_ssl_write(VALUE self, VALUE str)
{
SSL *ssl;
int nwrite = 0;
OpenFile *fptr;
StringValue(str);
Data_Get_Struct(self, SSL, ssl);
GetOpenFile(ossl_ssl_get_io(self), fptr);
if (ssl) {
for (;;){
nwrite = SSL_write(ssl, RSTRING(str)->ptr, RSTRING(str)->len);
switch(ssl_get_error(ssl, nwrite)){
case SSL_ERROR_NONE:
goto end;
case SSL_ERROR_WANT_WRITE:
rb_io_wait_writable(fptr->fd);
continue;
case SSL_ERROR_WANT_READ:
rb_io_wait_readable(fptr->fd);
continue;
case SSL_ERROR_SYSCALL:
if (errno) rb_sys_fail(0);
default:
ossl_raise(eSSLError, "SSL_write:");
}
}
}
else {
ID id_syswrite = rb_intern("syswrite");
rb_warning("SSL session is not started yet.");
return rb_funcall(ossl_ssl_get_io(self), id_syswrite, 1, str);
}
end:
return INT2NUM(nwrite);
}
static VALUE
ossl_ssl_close(VALUE self)
{
SSL *ssl;
Data_Get_Struct(self, SSL, ssl);
ossl_ssl_shutdown(ssl);
if (RTEST(ossl_ssl_get_sync_close(self)))
rb_funcall(ossl_ssl_get_io(self), rb_intern("close"), 0);
return Qnil;
}
static VALUE
ossl_ssl_get_cert(VALUE self)
{
SSL *ssl;
X509 *cert = NULL;
Data_Get_Struct(self, SSL, ssl);
if (ssl) {
rb_warning("SSL session is not started yet.");
return Qnil;
}
/*
* Is this OpenSSL bug? Should add a ref?
* TODO: Ask for.
*/
cert = SSL_get_certificate(ssl); /* NO DUPs => DON'T FREE. */
if (!cert) {
return Qnil;
}
return ossl_x509_new(cert);
}
static VALUE
ossl_ssl_get_peer_cert(VALUE self)
{
SSL *ssl;
X509 *cert = NULL;
VALUE obj;
Data_Get_Struct(self, SSL, ssl);
if (!ssl){
rb_warning("SSL session is not started yet.");
return Qnil;
}
cert = SSL_get_peer_certificate(ssl); /* Adds a ref => Safe to FREE. */
if (!cert) {
return Qnil;
}
obj = ossl_x509_new(cert);
X509_free(cert);
return obj;
}
static VALUE
ossl_ssl_get_peer_cert_chain(VALUE self)
{
SSL *ssl;
STACK_OF(X509) *chain;
X509 *cert;
VALUE ary;
int i, num;
Data_Get_Struct(self, SSL, ssl);
if(!ssl){
rb_warning("SSL session is not started yet.");
return Qnil;
}
chain = SSL_get_peer_cert_chain(ssl);
if(!chain) return Qnil;
num = sk_num(chain);
ary = rb_ary_new2(num);
for (i = 0; i < num; i++){
cert = (X509*)sk_value(chain, i);
rb_ary_push(ary, ossl_x509_new(cert));
}
return ary;
}
static VALUE
ossl_ssl_get_cipher(VALUE self)
{
SSL *ssl;
SSL_CIPHER *cipher;
Data_Get_Struct(self, SSL, ssl);
if (!ssl) {
rb_warning("SSL session is not started yet.");
return Qnil;
}
cipher = SSL_get_current_cipher(ssl);
return ossl_ssl_cipher_to_ary(cipher);
}
static VALUE
ossl_ssl_get_state(VALUE self)
{
SSL *ssl;
VALUE ret;
Data_Get_Struct(self, SSL, ssl);
if (!ssl) {
rb_warning("SSL session is not started yet.");
return Qnil;
}
ret = rb_str_new2(SSL_state_string(ssl));
if (ruby_verbose) {
rb_str_cat2(ret, ": ");
rb_str_cat2(ret, SSL_state_string_long(ssl));
}
return ret;
}
static VALUE
ossl_ssl_pending(VALUE self)
{
SSL *ssl;
Data_Get_Struct(self, SSL, ssl);
if (!ssl) {
rb_warning("SSL session is not started yet.");
return Qnil;
}
return INT2NUM(SSL_pending(ssl));
}
void
Init_ossl_ssl()
{
int i;
ossl_ssl_ex_vcb_idx = SSL_get_ex_new_index(0,"ossl_ssl_ex_vcb_idx",0,0,0);
ossl_ssl_ex_store_p = SSL_get_ex_new_index(0,"ossl_ssl_ex_store_p",0,0,0);
ossl_ssl_ex_ptr_idx = SSL_get_ex_new_index(0,"ossl_ssl_ex_ptr_idx",0,0,0);
ossl_ssl_ex_client_cert_cb_idx =
SSL_get_ex_new_index(0,"ossl_ssl_ex_client_cert_cb_idx",0,0,0);
ossl_ssl_ex_tmp_dh_callback_idx =
SSL_get_ex_new_index(0,"ossl_ssl_ex_tmp_dh_callback_idx",0,0,0);
mSSL = rb_define_module_under(mOSSL, "SSL");
eSSLError = rb_define_class_under(mSSL, "SSLError", eOSSLError);
/* class SSLContext */
cSSLContext = rb_define_class_under(mSSL, "SSLContext", rb_cObject);
rb_define_alloc_func(cSSLContext, ossl_sslctx_s_alloc);
for(i = 0; i < numberof(ossl_sslctx_attrs); i++)
rb_attr(cSSLContext, rb_intern(ossl_sslctx_attrs[i]), 1, 1, Qfalse);
rb_define_method(cSSLContext, "initialize", ossl_sslctx_initialize, -1);
rb_define_method(cSSLContext, "ciphers", ossl_sslctx_get_ciphers, 0);
rb_define_method(cSSLContext, "ciphers=", ossl_sslctx_set_ciphers, 1);
/* class SSLSocket */
cSSLSocket = rb_define_class_under(mSSL, "SSLSocket", rb_cObject);
rb_define_alloc_func(cSSLSocket, ossl_ssl_s_alloc);
for(i = 0; i < numberof(ossl_ssl_attr_readers); i++)
rb_attr(cSSLSocket, rb_intern(ossl_ssl_attr_readers[i]), 1, 0, Qfalse);
for(i = 0; i < numberof(ossl_ssl_attrs); i++)
rb_attr(cSSLSocket, rb_intern(ossl_ssl_attrs[i]), 1, 1, Qfalse);
rb_define_alias(cSSLSocket, "to_io", "io");
rb_define_method(cSSLSocket, "initialize", ossl_ssl_initialize, -1);
rb_define_method(cSSLSocket, "connect", ossl_ssl_connect, 0);
rb_define_method(cSSLSocket, "accept", ossl_ssl_accept, 0);
rb_define_method(cSSLSocket, "sysread", ossl_ssl_read, -1);
rb_define_method(cSSLSocket, "syswrite", ossl_ssl_write, 1);
rb_define_method(cSSLSocket, "sysclose", ossl_ssl_close, 0);
rb_define_method(cSSLSocket, "cert", ossl_ssl_get_cert, 0);
rb_define_method(cSSLSocket, "peer_cert", ossl_ssl_get_peer_cert, 0);
rb_define_method(cSSLSocket, "peer_cert_chain", ossl_ssl_get_peer_cert_chain, 0);
rb_define_method(cSSLSocket, "cipher", ossl_ssl_get_cipher, 0);
rb_define_method(cSSLSocket, "state", ossl_ssl_get_state, 0);
rb_define_method(cSSLSocket, "pending", ossl_ssl_pending, 0);
#define ossl_ssl_def_const(x) rb_define_const(mSSL, #x, INT2FIX(SSL_##x))
ossl_ssl_def_const(VERIFY_NONE);
ossl_ssl_def_const(VERIFY_PEER);
ossl_ssl_def_const(VERIFY_FAIL_IF_NO_PEER_CERT);
ossl_ssl_def_const(VERIFY_CLIENT_ONCE);
/* Not introduce constants included in OP_ALL such as...
* ossl_ssl_def_const(OP_MICROSOFT_SESS_ID_BUG);
* ossl_ssl_def_const(OP_NETSCAPE_CHALLENGE_BUG);
* ossl_ssl_def_const(OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG);
* ossl_ssl_def_const(OP_SSLREF2_REUSE_CERT_TYPE_BUG);
* ossl_ssl_def_const(OP_MICROSOFT_BIG_SSLV3_BUFFER);
* ossl_ssl_def_const(OP_MSIE_SSLV2_RSA_PADDING);
* ossl_ssl_def_const(OP_SSLEAY_080_CLIENT_DH_BUG);
* ossl_ssl_def_const(OP_TLS_D5_BUG);
* ossl_ssl_def_const(OP_TLS_BLOCK_PADDING_BUG);
* ossl_ssl_def_const(OP_DONT_INSERT_EMPTY_FRAGMENTS);
*/
ossl_ssl_def_const(OP_ALL);
#if defined(SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)
ossl_ssl_def_const(OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
#endif
#if defined(SSL_OP_SINGLE_ECDH_USE)
ossl_ssl_def_const(OP_SINGLE_ECDH_USE);
#endif
ossl_ssl_def_const(OP_SINGLE_DH_USE);
ossl_ssl_def_const(OP_EPHEMERAL_RSA);
#if defined(SSL_OP_CIPHER_SERVER_PREFERENCE)
ossl_ssl_def_const(OP_CIPHER_SERVER_PREFERENCE);
#endif
ossl_ssl_def_const(OP_TLS_ROLLBACK_BUG);
ossl_ssl_def_const(OP_NO_SSLv2);
ossl_ssl_def_const(OP_NO_SSLv3);
ossl_ssl_def_const(OP_NO_TLSv1);
ossl_ssl_def_const(OP_PKCS1_CHECK_1);
ossl_ssl_def_const(OP_PKCS1_CHECK_2);
ossl_ssl_def_const(OP_NETSCAPE_CA_DN_BUG);
ossl_ssl_def_const(OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
}
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