This method is called automatically when a new SSLSocket is created. However, it is not thread-safe and must be called before creating SSLSocket objects in a multi-threaded program.
static VALUE
ossl_sslctx_setup(VALUE self)
{
SSL_CTX *ctx;
X509 *cert = NULL, *client_ca = NULL;
EVP_PKEY *key = NULL;
char *ca_path = NULL, *ca_file = NULL;
int verify_mode;
long i;
VALUE val;
if(OBJ_FROZEN(self)) return Qnil;
GetSSLCTX(self, ctx);
#if !defined(OPENSSL_NO_DH)
SSL_CTX_set_tmp_dh_callback(ctx, ossl_tmp_dh_callback);
#endif
#if !defined(OPENSSL_NO_EC)
/* We added SSLContext#tmp_ecdh_callback= in Ruby 2.3.0,
* but SSL_CTX_set_tmp_ecdh_callback() was removed in OpenSSL 1.1.0. */
if (RTEST(rb_attr_get(self, id_i_tmp_ecdh_callback))) {
# if defined(HAVE_SSL_CTX_SET_TMP_ECDH_CALLBACK)
rb_warn("#tmp_ecdh_callback= is deprecated; use #ecdh_curves= instead");
SSL_CTX_set_tmp_ecdh_callback(ctx, ossl_tmp_ecdh_callback);
# if defined(HAVE_SSL_CTX_SET_ECDH_AUTO)
/* tmp_ecdh_callback and ecdh_auto conflict; OpenSSL ignores
* tmp_ecdh_callback. So disable ecdh_auto. */
if (!SSL_CTX_set_ecdh_auto(ctx, 0))
ossl_raise(eSSLError, "SSL_CTX_set_ecdh_auto");
# endif
# else
ossl_raise(eSSLError, "OpenSSL does not support tmp_ecdh_callback; "
"use #ecdh_curves= instead");
# endif
}
#endif /* OPENSSL_NO_EC */
val = rb_attr_get(self, id_i_cert_store);
if (!NIL_P(val)) {
X509_STORE *store = GetX509StorePtr(val); /* NO NEED TO DUP */
SSL_CTX_set_cert_store(ctx, store);
#if !defined(HAVE_X509_STORE_UP_REF)
/*
* 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.
*/
SSL_CTX_set_ex_data(ctx, ossl_sslctx_ex_store_p, ctx);
#else /* Fixed in OpenSSL 1.0.2; bff9ce4db38b (master), 5b4b9ce976fc (1.0.2) */
X509_STORE_up_ref(store);
#endif
}
val = rb_attr_get(self, id_i_extra_chain_cert);
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 = rb_attr_get(self, id_i_cert);
cert = NIL_P(val) ? NULL : GetX509CertPtr(val); /* NO DUP NEEDED */
val = rb_attr_get(self, id_i_key);
key = NIL_P(val) ? NULL : GetPrivPKeyPtr(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 = rb_attr_get(self, id_i_client_ca);
if(!NIL_P(val)){
if (RB_TYPE_P(val, T_ARRAY)) {
for(i = 0; i < RARRAY_LEN(val); i++){
client_ca = GetX509CertPtr(RARRAY_AREF(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 = rb_attr_get(self, id_i_ca_file);
ca_file = NIL_P(val) ? NULL : StringValueCStr(val);
val = rb_attr_get(self, id_i_ca_path);
ca_path = NIL_P(val) ? NULL : StringValueCStr(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 = rb_attr_get(self, id_i_verify_mode);
verify_mode = NIL_P(val) ? SSL_VERIFY_NONE : NUM2INT(val);
SSL_CTX_set_verify(ctx, verify_mode, ossl_ssl_verify_callback);
if (RTEST(rb_attr_get(self, id_i_client_cert_cb)))
SSL_CTX_set_client_cert_cb(ctx, ossl_client_cert_cb);
val = rb_attr_get(self, id_i_timeout);
if(!NIL_P(val)) SSL_CTX_set_timeout(ctx, NUM2LONG(val));
val = rb_attr_get(self, id_i_verify_depth);
if(!NIL_P(val)) SSL_CTX_set_verify_depth(ctx, NUM2INT(val));
#ifndef OPENSSL_NO_NEXTPROTONEG
val = rb_attr_get(self, id_i_npn_protocols);
if (!NIL_P(val)) {
VALUE encoded = ssl_encode_npn_protocols(val);
rb_ivar_set(self, id_npn_protocols_encoded, encoded);
SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_npn_advertise_cb, (void *)encoded);
OSSL_Debug("SSL NPN advertise callback added");
}
if (RTEST(rb_attr_get(self, id_i_npn_select_cb))) {
SSL_CTX_set_next_proto_select_cb(ctx, ssl_npn_select_cb, (void *) self);
OSSL_Debug("SSL NPN select callback added");
}
#endif
#ifdef HAVE_SSL_CTX_SET_ALPN_SELECT_CB
val = rb_attr_get(self, id_i_alpn_protocols);
if (!NIL_P(val)) {
VALUE rprotos = ssl_encode_npn_protocols(val);
/* returns 0 on success */
if (SSL_CTX_set_alpn_protos(ctx, (unsigned char *)RSTRING_PTR(rprotos),
RSTRING_LENINT(rprotos)))
ossl_raise(eSSLError, "SSL_CTX_set_alpn_protos");
OSSL_Debug("SSL ALPN values added");
}
if (RTEST(rb_attr_get(self, id_i_alpn_select_cb))) {
SSL_CTX_set_alpn_select_cb(ctx, ssl_alpn_select_cb, (void *) self);
OSSL_Debug("SSL ALPN select callback added");
}
#endif
rb_obj_freeze(self);
val = rb_attr_get(self, id_i_session_id_context);
if (!NIL_P(val)){
StringValue(val);
if (!SSL_CTX_set_session_id_context(ctx, (unsigned char *)RSTRING_PTR(val),
RSTRING_LENINT(val))){
ossl_raise(eSSLError, "SSL_CTX_set_session_id_context");
}
}
if (RTEST(rb_attr_get(self, id_i_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_attr_get(self, id_i_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_attr_get(self, id_i_session_remove_cb))) {
SSL_CTX_sess_set_remove_cb(ctx, ossl_sslctx_session_remove_cb);
OSSL_Debug("SSL SESSION remove callback added");
}
val = rb_attr_get(self, id_i_servername_cb);
if (!NIL_P(val)) {
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
OSSL_Debug("SSL TLSEXT servername callback added");
}
return Qtrue;
}
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