media/mtransport/nriceresolverfake.h@97036ab72558 (annotated)
media/mtransport/nriceresolverfake.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 5 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | |
| michael@0 | 8 | // Original author: ekr@rtfm.com |
| michael@0 | 9 | |
| michael@0 | 10 | // Some of this code is cut-and-pasted from nICEr. Copyright is: |
| michael@0 | 11 | |
| michael@0 | 12 | /* |
| michael@0 | 13 | Copyright (c) 2007, Adobe Systems, Incorporated |
| michael@0 | 14 | All rights reserved. |
| michael@0 | 15 | |
| michael@0 | 16 | Redistribution and use in source and binary forms, with or without |
| michael@0 | 17 | modification, are permitted provided that the following conditions are |
| michael@0 | 18 | met: |
| michael@0 | 19 | |
| michael@0 | 20 | * Redistributions of source code must retain the above copyright |
| michael@0 | 21 | notice, this list of conditions and the following disclaimer. |
| michael@0 | 22 | |
| michael@0 | 23 | * Redistributions in binary form must reproduce the above copyright |
| michael@0 | 24 | notice, this list of conditions and the following disclaimer in the |
| michael@0 | 25 | documentation and/or other materials provided with the distribution. |
| michael@0 | 26 | |
| michael@0 | 27 | * Neither the name of Adobe Systems, Network Resonance nor the names of its |
| michael@0 | 28 | contributors may be used to endorse or promote products derived from |
| michael@0 | 29 | this software without specific prior written permission. |
| michael@0 | 30 | |
| michael@0 | 31 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 32 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 33 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 34 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 35 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 36 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 37 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 38 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 39 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 40 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 41 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 42 | */ |
| michael@0 | 43 | |
| michael@0 | 44 | #ifndef nriceresolverfake_h__ |
| michael@0 | 45 | #define nriceresolverfake_h__ |
| michael@0 | 46 | |
| michael@0 | 47 | #include <map> |
| michael@0 | 48 | #include <string> |
| michael@0 | 49 | |
| michael@0 | 50 | #include "nspr.h" |
| michael@0 | 51 | #include "prnetdb.h" |
| michael@0 | 52 | #include "mozilla/NullPtr.h" |
| michael@0 | 53 | |
| michael@0 | 54 | typedef struct nr_resolver_ nr_resolver; |
| michael@0 | 55 | typedef struct nr_resolver_vtbl_ nr_resolver_vtbl; |
| michael@0 | 56 | typedef struct nr_transport_addr_ nr_transport_addr; |
| michael@0 | 57 | typedef struct nr_resolver_resource_ nr_resolver_resource; |
| michael@0 | 58 | |
| michael@0 | 59 | namespace mozilla { |
| michael@0 | 60 | |
| michael@0 | 61 | class NrIceResolverFake { |
| michael@0 | 62 | public: |
| michael@0 | 63 | NrIceResolverFake(); |
| michael@0 | 64 | ~NrIceResolverFake(); |
| michael@0 | 65 | |
| michael@0 | 66 | void SetAddr(const std::string& hostname, const PRNetAddr& addr) { |
| michael@0 | 67 | addrs_[hostname] = addr; |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | nr_resolver *AllocateResolver(); |
| michael@0 | 71 | |
| michael@0 | 72 | void DestroyResolver(); |
| michael@0 | 73 | |
| michael@0 | 74 | private: |
| michael@0 | 75 | // Implementations of vtbl functions |
| michael@0 | 76 | static int destroy(void **objp); |
| michael@0 | 77 | static int resolve(void *obj, |
| michael@0 | 78 | nr_resolver_resource *resource, |
| michael@0 | 79 | int (*cb)(void *cb_arg, |
| michael@0 | 80 | nr_transport_addr *addr), |
| michael@0 | 81 | void *cb_arg, |
| michael@0 | 82 | void **handle); |
| michael@0 | 83 | static void resolve_cb(NR_SOCKET s, int how, void *cb_arg); |
| michael@0 | 84 | static int cancel(void *obj, void *handle); |
| michael@0 | 85 | |
| michael@0 | 86 | // Get an address. |
| michael@0 | 87 | const PRNetAddr *Resolve(const std::string& hostname) { |
| michael@0 | 88 | if (!addrs_.count(hostname)) |
| michael@0 | 89 | return nullptr; |
| michael@0 | 90 | |
| michael@0 | 91 | return &addrs_[hostname]; |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | |
| michael@0 | 95 | struct PendingResolution { |
| michael@0 | 96 | PendingResolution(NrIceResolverFake *resolver, |
| michael@0 | 97 | const std::string& hostname, |
| michael@0 | 98 | uint16_t port, |
| michael@0 | 99 | int transport, |
| michael@0 | 100 | int (*cb)(void *cb_arg, nr_transport_addr *addr), |
| michael@0 | 101 | void *cb_arg) : |
| michael@0 | 102 | resolver_(resolver), |
| michael@0 | 103 | hostname_(hostname), |
| michael@0 | 104 | port_(port), |
| michael@0 | 105 | transport_(transport), |
| michael@0 | 106 | cb_(cb), cb_arg_(cb_arg) {} |
| michael@0 | 107 | |
| michael@0 | 108 | NrIceResolverFake *resolver_; |
| michael@0 | 109 | std::string hostname_; |
| michael@0 | 110 | uint16_t port_; |
| michael@0 | 111 | int transport_; |
| michael@0 | 112 | int (*cb_)(void *cb_arg, nr_transport_addr *addr); |
| michael@0 | 113 | void *cb_arg_; |
| michael@0 | 114 | void *timer_handle_; |
| michael@0 | 115 | }; |
| michael@0 | 116 | |
| michael@0 | 117 | nr_resolver_vtbl* vtbl_; |
| michael@0 | 118 | std::map<std::string, PRNetAddr> addrs_; |
| michael@0 | 119 | uint32_t delay_ms_; |
| michael@0 | 120 | int allocated_resolvers_; |
| michael@0 | 121 | }; |
| michael@0 | 122 | |
| michael@0 | 123 | } // End of namespace mozilla |
| michael@0 | 124 | |
| michael@0 | 125 | #endif |
