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ossl_ssl.c
1693 lines (1461 loc) · 46.4 KB
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ossl_ssl.c
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/*
* $Id: ossl_ssl.c 25189 2009-10-02 12:04:37Z akr $
* 'OpenSSL for Ruby' project
* Copyright (C) 2000-2002 GOTOU Yuuzou <gotoyuzo@notwork.org>
* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
* Copyright (C) 2001-2007 Technorama Ltd. <oss-ruby@technorama.net>
* All rights reserved.
*/
/*
* This program is licenced under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
// for rb_vm_call_super()
#include "ruby/node.h"
#include "vm.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 const 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",
"session_get_cb", "session_new_cb", "session_remove_cb",
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
"servername_cb",
#endif
};
#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 const char *ossl_ssl_attr_readers[] = { "io", "context", };
static const char *ossl_ssl_attrs[] = {
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
"hostname",
#endif
"sync_close",
};
ID ID_callback_state;
/*
* 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_set_ssl_version(VALUE self, SEL sel, VALUE ssl_method)
{
SSL_METHOD *method = NULL;
const char *s;
int i;
SSL_CTX *ctx;
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 ssl_method;
}
/*
* call-seq:
* SSLContext.new => ctx
* SSLContext.new(:TLSv1) => ctx
* SSLContext.new("SSLv23_client") => ctx
*
* You can get a list of valid methods with OpenSSL::SSL::SSLContext::METHODS
*/
static VALUE
ossl_sslctx_initialize(VALUE self, SEL sel, int argc, VALUE *argv)
{
VALUE ssl_method;
int i;
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;
}
ossl_sslctx_set_ssl_version(self, 0, ssl_method);
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)
{
rb_warning("using default DH parameters.");
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_call_session_get_cb(VALUE ary)
{
VALUE ssl_obj, sslctx_obj, cb;
Check_Type(ary, T_ARRAY);
ssl_obj = rb_ary_entry(ary, 0);
sslctx_obj = rb_iv_get(ssl_obj, "@context");
if (NIL_P(sslctx_obj)) return Qnil;
cb = rb_iv_get(sslctx_obj, "@session_get_cb");
if (NIL_P(cb)) return Qnil;
return rb_funcall(cb, rb_intern("call"), 1, ary);
}
/* this method is currently only called for servers (in OpenSSL <= 0.9.8e) */
static SSL_SESSION *
ossl_sslctx_session_get_cb(SSL *ssl, unsigned char *buf, int len, int *copy)
{
VALUE ary, ssl_obj, ret_obj;
SSL_SESSION *sess;
void *ptr;
int state = 0;
OSSL_Debug("SSL SESSION get callback entered");
if ((ptr = SSL_get_ex_data(ssl, ossl_ssl_ex_ptr_idx)) == NULL)
return NULL;
ssl_obj = (VALUE)ptr;
ary = rb_ary_new2(2);
rb_ary_push(ary, ssl_obj);
rb_ary_push(ary, rb_str_new((const char *)buf, len));
ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_session_get_cb, ary, &state);
if (state) {
rb_ivar_set(ssl_obj, ID_callback_state, INT2NUM(state));
return NULL;
}
if (!rb_obj_is_instance_of(ret_obj, cSSLSession))
return NULL;
SafeGetSSLSession(ret_obj, sess);
*copy = 1;
return sess;
}
static VALUE
ossl_call_session_new_cb(VALUE ary)
{
VALUE ssl_obj, sslctx_obj, cb;
Check_Type(ary, T_ARRAY);
ssl_obj = rb_ary_entry(ary, 0);
sslctx_obj = rb_iv_get(ssl_obj, "@context");
if (NIL_P(sslctx_obj)) return Qnil;
cb = rb_iv_get(sslctx_obj, "@session_new_cb");
if (NIL_P(cb)) return Qnil;
return rb_funcall(cb, rb_intern("call"), 1, ary);
}
/* return 1 normal. return 0 removes the session */
static int
ossl_sslctx_session_new_cb(SSL *ssl, SSL_SESSION *sess)
{
VALUE ary, ssl_obj, sess_obj, ret_obj;
void *ptr;
int state = 0;
OSSL_Debug("SSL SESSION new callback entered");
if ((ptr = SSL_get_ex_data(ssl, ossl_ssl_ex_ptr_idx)) == NULL)
return 1;
ssl_obj = (VALUE)ptr;
sess_obj = rb_obj_alloc(cSSLSession);
CRYPTO_add(&sess->references, 1, CRYPTO_LOCK_SSL_SESSION);
DATA_PTR(sess_obj) = sess;
ary = rb_ary_new2(2);
rb_ary_push(ary, ssl_obj);
rb_ary_push(ary, sess_obj);
ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_session_new_cb, ary, &state);
if (state) {
rb_ivar_set(ssl_obj, ID_callback_state, INT2NUM(state));
return 0; /* what should be returned here??? */
}
return RTEST(ret_obj) ? 1 : 0;
}
#if 0 /* unused */
static VALUE
ossl_call_session_remove_cb(VALUE ary)
{
VALUE sslctx_obj, cb;
Check_Type(ary, T_ARRAY);
sslctx_obj = rb_ary_entry(ary, 0);
cb = rb_iv_get(sslctx_obj, "@session_remove_cb");
if (NIL_P(cb)) return Qnil;
return rb_funcall(cb, rb_intern("call"), 1, ary);
}
#endif
static void
ossl_sslctx_session_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
{
VALUE ary, sslctx_obj, sess_obj, ret_obj;
void *ptr;
int state = 0;
OSSL_Debug("SSL SESSION remove callback entered");
if ((ptr = SSL_CTX_get_ex_data(ctx, ossl_ssl_ex_ptr_idx)) == NULL)
return;
sslctx_obj = (VALUE)ptr;
sess_obj = rb_obj_alloc(cSSLSession);
CRYPTO_add(&sess->references, 1, CRYPTO_LOCK_SSL_SESSION);
DATA_PTR(sess_obj) = sess;
ary = rb_ary_new2(2);
rb_ary_push(ary, sslctx_obj);
rb_ary_push(ary, sess_obj);
ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_session_new_cb, ary, &state);
if (state) {
/*
the SSL_CTX is frozen, nowhere to save state.
there is no common accessor method to check it either.
rb_ivar_set(sslctx_obj, ID_callback_state, INT2NUM(state));
*/
}
}
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);
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
static VALUE
ossl_call_servername_cb(VALUE ary)
{
VALUE ssl_obj, sslctx_obj, cb, ret_obj;
Check_Type(ary, T_ARRAY);
ssl_obj = rb_ary_entry(ary, 0);
sslctx_obj = rb_iv_get(ssl_obj, "@context");
if (NIL_P(sslctx_obj)) return Qnil;
cb = rb_iv_get(sslctx_obj, "@servername_cb");
if (NIL_P(cb)) return Qnil;
ret_obj = rb_funcall(cb, rb_intern("call"), 1, ary);
if (rb_obj_is_kind_of(ret_obj, cSSLContext)) {
SSL *ssl;
SSL_CTX *ctx2;
ossl_sslctx_setup(ret_obj);
Data_Get_Struct(ssl_obj, SSL, ssl);
Data_Get_Struct(ret_obj, SSL_CTX, ctx2);
SSL_set_SSL_CTX(ssl, ctx2);
} else if (!NIL_P(ret_obj)) {
rb_raise(rb_eArgError, "servername_cb must return an OpenSSL::SSL::SSLContext object or nil");
}
return ret_obj;
}
static int
ssl_servername_cb(SSL *ssl, int *ad, void *arg)
{
VALUE ary, ssl_obj, ret_obj;
void *ptr;
int state = 0;
const char *servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
if (!servername)
return SSL_TLSEXT_ERR_OK;
if ((ptr = SSL_get_ex_data(ssl, ossl_ssl_ex_ptr_idx)) == NULL)
return SSL_TLSEXT_ERR_ALERT_FATAL;
ssl_obj = (VALUE)ptr;
ary = rb_ary_new2(2);
rb_ary_push(ary, ssl_obj);
rb_ary_push(ary, rb_str_new2(servername));
ret_obj = rb_protect((VALUE(*)_((VALUE)))ossl_call_servername_cb, ary, &state);
if (state) {
rb_ivar_set(ssl_obj, ID_callback_state, INT2NUM(state));
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
return SSL_TLSEXT_ERR_OK;
}
#endif
/*
* call-seq:
* ctx.setup => Qtrue # first time
* ctx.setup => nil # thereafter
*
* This method is called automatically when a new SSLSocket is created.
* Normally you do not need to call this method (unless you are writing an extension in C).
*/
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{
SSL_CTX_set_tmp_dh_callback(ctx, ossl_default_tmp_dh_callback);
}
#endif
SSL_CTX_set_ex_data(ctx, ossl_ssl_ex_ptr_idx, (void*)self);
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_block_call(val, rb_intern("each"), 0, 0, 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_LEN(val); i++){
client_ca = GetX509CertPtr(RARRAY_PTR(val)[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, (unsigned char *)RSTRING_PTR(val),
RSTRING_LEN(val))){
ossl_raise(eSSLError, "SSL_CTX_set_session_id_context:");
}
}
if (RTEST(rb_iv_get(self, "@session_get_cb"))) {
SSL_CTX_sess_set_get_cb(ctx, ossl_sslctx_session_get_cb);
OSSL_Debug("SSL SESSION get callback added");
}
if (RTEST(rb_iv_get(self, "@session_new_cb"))) {
SSL_CTX_sess_set_new_cb(ctx, ossl_sslctx_session_new_cb);
OSSL_Debug("SSL SESSION new callback added");
}
if (RTEST(rb_iv_get(self, "@session_remove_cb"))) {
SSL_CTX_sess_set_remove_cb(ctx, ossl_sslctx_session_remove_cb);
OSSL_Debug("SSL SESSION remove callback added");
}
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
val = rb_iv_get(self, "@servername_cb");
if (!NIL_P(val)) {
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
OSSL_Debug("SSL TLSEXT servername callback added");
}
#endif
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;
}
/*
* call-seq:
* ctx.ciphers => [[name, version, bits, alg_bits], ...]
*/
static VALUE
ossl_sslctx_get_ciphers(VALUE self, SEL sel)
{
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;
}
/*
* call-seq:
* ctx.ciphers = "cipher1:cipher2:..."
* ctx.ciphers = [name, ...]
* ctx.ciphers = [[name, version, bits, alg_bits], ...]
*/
static VALUE
ossl_sslctx_set_ciphers(VALUE self, SEL sel, 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_new(0, 0);
for (i = 0; i < RARRAY_LEN(v); 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_LEN(v)-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_PTR(str))) {
ossl_raise(eSSLError, "SSL_CTX_set_cipher_list:");
}
return v;
}
/*
* call-seq:
* ctx.session_add(session) -> true | false
*
*/
static VALUE
ossl_sslctx_session_add(VALUE self, SEL sel, VALUE arg)
{
SSL_CTX *ctx;
SSL_SESSION *sess;
Data_Get_Struct(self, SSL_CTX, ctx);
SafeGetSSLSession(arg, sess);
return SSL_CTX_add_session(ctx, sess) == 1 ? Qtrue : Qfalse;
}
/*
* call-seq:
* ctx.session_remove(session) -> true | false
*
*/
static VALUE
ossl_sslctx_session_remove(VALUE self, SEL sel, VALUE arg)
{
SSL_CTX *ctx;
SSL_SESSION *sess;
Data_Get_Struct(self, SSL_CTX, ctx);
SafeGetSSLSession(arg, sess);
return SSL_CTX_remove_session(ctx, sess) == 1 ? Qtrue : Qfalse;
}
/*
* call-seq:
* ctx.session_cache_mode -> integer
*
*/
static VALUE
ossl_sslctx_get_session_cache_mode(VALUE self)
{
SSL_CTX *ctx;
Data_Get_Struct(self, SSL_CTX, ctx);
return LONG2NUM(SSL_CTX_get_session_cache_mode(ctx));
}
/*
* call-seq:
* ctx.session_cache_mode=(integer) -> integer
*
*/
static VALUE
ossl_sslctx_set_session_cache_mode(VALUE self, SEL sel, VALUE arg)
{
SSL_CTX *ctx;
Data_Get_Struct(self, SSL_CTX, ctx);
SSL_CTX_set_session_cache_mode(ctx, NUM2LONG(arg));
return arg;
}
/*
* call-seq:
* ctx.session_cache_size -> integer
*
*/
static VALUE
ossl_sslctx_get_session_cache_size(VALUE self)
{
SSL_CTX *ctx;
Data_Get_Struct(self, SSL_CTX, ctx);
return LONG2NUM(SSL_CTX_sess_get_cache_size(ctx));
}
/*
* call-seq:
* ctx.session_cache_size=(integer) -> integer
*
*/
static VALUE
ossl_sslctx_set_session_cache_size(VALUE self, SEL sel, VALUE arg)
{
SSL_CTX *ctx;
Data_Get_Struct(self, SSL_CTX, ctx);
SSL_CTX_sess_set_cache_size(ctx, NUM2LONG(arg));
return arg;
}
/*
* call-seq:
* ctx.session_cache_stats -> Hash
*
*/
static VALUE
ossl_sslctx_get_session_cache_stats(VALUE self)
{
SSL_CTX *ctx;
VALUE hash;
Data_Get_Struct(self, SSL_CTX, ctx);
hash = rb_hash_new();
rb_hash_aset(hash, ID2SYM(rb_intern("cache_num")), LONG2NUM(SSL_CTX_sess_number(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("connect")), LONG2NUM(SSL_CTX_sess_connect(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("connect_good")), LONG2NUM(SSL_CTX_sess_connect_good(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("connect_renegotiate")), LONG2NUM(SSL_CTX_sess_connect_renegotiate(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("accept")), LONG2NUM(SSL_CTX_sess_accept(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("accept_good")), LONG2NUM(SSL_CTX_sess_accept_good(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("accept_renegotiate")), LONG2NUM(SSL_CTX_sess_accept_renegotiate(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("cache_hits")), LONG2NUM(SSL_CTX_sess_hits(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("cb_hits")), LONG2NUM(SSL_CTX_sess_cb_hits(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("cache_misses")), LONG2NUM(SSL_CTX_sess_misses(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("cache_full")), LONG2NUM(SSL_CTX_sess_cache_full(ctx)));
rb_hash_aset(hash, ID2SYM(rb_intern("timeouts")), LONG2NUM(SSL_CTX_sess_timeouts(ctx)));
return hash;
}
/*
* call-seq:
* ctx.flush_sessions(time | nil) -> self
*
*/
static VALUE
ossl_sslctx_flush_sessions(VALUE self, SEL sel, int argc, VALUE *argv)
{
VALUE arg1;
SSL_CTX *ctx;
time_t tm = 0;
rb_scan_args(argc, argv, "01", &arg1);
Data_Get_Struct(self, SSL_CTX, ctx);
if (NIL_P(arg1)) {
tm = time(0);
} else if (rb_obj_is_instance_of(arg1, rb_cTime)) {
tm = NUM2LONG(rb_funcall(arg1, rb_intern("to_i"), 0));
} else {
rb_raise(rb_eArgError, "arg must be Time or nil");
}
SSL_CTX_flush_sessions(ctx, (long)tm);
return self;
}
/*
* 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);
}
/*
* call-seq:
* SSLSocket.new(io) => aSSLSocket
* SSLSocket.new(io, ctx) => aSSLSocket
*
* === Parameters
* * +io+ is a real ruby IO object. Not an IO like object that responds to read/write.
* * +ctx+ is an OpenSSLSSL::SSLContext.
*
* The OpenSSL::Buffering module provides additional IO methods.
*
* This method will freeze the SSLContext if one is provided;
* however, session management is still allowed in the frozen SSLContext.
*/
static VALUE
ossl_ssl_initialize(VALUE self, SEL sel, int argc, VALUE *argv)
{
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_vm_call_super(self, sel, 0, NULL);
return self;
}
static VALUE
ossl_ssl_setup(VALUE self)
{
VALUE io, v_ctx, cb;
SSL_CTX *ctx;
SSL *ssl;
rb_io_t *fptr;
Data_Get_Struct(self, SSL, ssl);
if(!ssl){
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
VALUE hostname = rb_iv_get(self, "@hostname");
#endif
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;
#ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME
if (!NIL_P(hostname)) {