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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ipc/brokerable_attachment.h"
#include "crypto/random.h"
namespace IPC {
namespace {
// In order to prevent mutually untrusted processes from stealing resources from
// one another, the nonce must be secret. This generates a 128-bit,
// cryptographicaly-strong random number.
BrokerableAttachment::AttachmentId GetRandomId() {
BrokerableAttachment::AttachmentId id;
crypto::RandBytes(id.nonce, BrokerableAttachment::kNonceSize);
return id;
}
} // namespace
BrokerableAttachment::BrokerableAttachment()
: id_(GetRandomId()), needs_brokering_(false) {}
BrokerableAttachment::BrokerableAttachment(const AttachmentId& id,
bool needs_brokering)
: id_(id), needs_brokering_(needs_brokering) {}
BrokerableAttachment::~BrokerableAttachment() {
}
BrokerableAttachment::AttachmentId BrokerableAttachment::GetIdentifier() const {
return id_;
}
bool BrokerableAttachment::NeedsBrokering() const {
return needs_brokering_;
}
void BrokerableAttachment::SetNeedsBrokering(bool needs_brokering) {
needs_brokering_ = needs_brokering;
}
BrokerableAttachment::Type BrokerableAttachment::GetType() const {
return TYPE_BROKERABLE_ATTACHMENT;
}
} // namespace IPC
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