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comparison: dom/bluetooth/ObexBase.cpp
dom/bluetooth/ObexBase.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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deleted
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replaced
| -1:000000000000 | 0:bbe6c5a05aa4 |
|---|---|
| 1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "ObexBase.h" | |
| 8 | |
| 9 BEGIN_BLUETOOTH_NAMESPACE | |
| 10 | |
| 11 int | |
| 12 AppendHeaderName(uint8_t* aRetBuf, int aBufferSize, const char* aName, | |
| 13 int aLength) | |
| 14 { | |
| 15 int headerLength = aLength + 3; | |
| 16 | |
| 17 aRetBuf[0] = ObexHeaderId::Name; | |
| 18 aRetBuf[1] = (headerLength & 0xFF00) >> 8; | |
| 19 aRetBuf[2] = headerLength & 0x00FF; | |
| 20 | |
| 21 memcpy(&aRetBuf[3], aName, (aLength < aBufferSize - 3)? aLength | |
| 22 : aBufferSize - 3); | |
| 23 | |
| 24 return headerLength; | |
| 25 } | |
| 26 | |
| 27 int | |
| 28 AppendHeaderBody(uint8_t* aRetBuf, int aBufferSize, const uint8_t* aData, | |
| 29 int aLength) | |
| 30 { | |
| 31 int headerLength = aLength + 3; | |
| 32 | |
| 33 aRetBuf[0] = ObexHeaderId::Body; | |
| 34 aRetBuf[1] = (headerLength & 0xFF00) >> 8; | |
| 35 aRetBuf[2] = headerLength & 0x00FF; | |
| 36 | |
| 37 memcpy(&aRetBuf[3], aData, (aLength < aBufferSize - 3)? aLength | |
| 38 : aBufferSize - 3); | |
| 39 | |
| 40 return headerLength; | |
| 41 } | |
| 42 | |
| 43 int | |
| 44 AppendHeaderEndOfBody(uint8_t* aRetBuf) | |
| 45 { | |
| 46 aRetBuf[0] = ObexHeaderId::EndOfBody; | |
| 47 aRetBuf[1] = 0x00; | |
| 48 aRetBuf[2] = 0x03; | |
| 49 | |
| 50 return 3; | |
| 51 } | |
| 52 | |
| 53 int | |
| 54 AppendHeaderLength(uint8_t* aRetBuf, int aObjectLength) | |
| 55 { | |
| 56 aRetBuf[0] = ObexHeaderId::Length; | |
| 57 aRetBuf[1] = (aObjectLength & 0xFF000000) >> 24; | |
| 58 aRetBuf[2] = (aObjectLength & 0x00FF0000) >> 16; | |
| 59 aRetBuf[3] = (aObjectLength & 0x0000FF00) >> 8; | |
| 60 aRetBuf[4] = aObjectLength & 0x000000FF; | |
| 61 | |
| 62 return 5; | |
| 63 } | |
| 64 | |
| 65 int | |
| 66 AppendHeaderConnectionId(uint8_t* aRetBuf, int aConnectionId) | |
| 67 { | |
| 68 aRetBuf[0] = ObexHeaderId::ConnectionId; | |
| 69 aRetBuf[1] = (aConnectionId & 0xFF000000) >> 24; | |
| 70 aRetBuf[2] = (aConnectionId & 0x00FF0000) >> 16; | |
| 71 aRetBuf[3] = (aConnectionId & 0x0000FF00) >> 8; | |
| 72 aRetBuf[4] = aConnectionId & 0x000000FF; | |
| 73 | |
| 74 return 5; | |
| 75 } | |
| 76 | |
| 77 void | |
| 78 SetObexPacketInfo(uint8_t* aRetBuf, uint8_t aOpcode, int aPacketLength) | |
| 79 { | |
| 80 aRetBuf[0] = aOpcode; | |
| 81 aRetBuf[1] = (aPacketLength & 0xFF00) >> 8; | |
| 82 aRetBuf[2] = aPacketLength & 0x00FF; | |
| 83 } | |
| 84 | |
| 85 bool | |
| 86 ParseHeaders(const uint8_t* aHeaderStart, | |
| 87 int aTotalLength, | |
| 88 ObexHeaderSet* aRetHandlerSet) | |
| 89 { | |
| 90 const uint8_t* ptr = aHeaderStart; | |
| 91 | |
| 92 while (ptr - aHeaderStart < aTotalLength) { | |
| 93 ObexHeaderId headerId = (ObexHeaderId)*ptr++; | |
| 94 | |
| 95 uint16_t contentLength = 0; | |
| 96 uint8_t highByte, lowByte; | |
| 97 | |
| 98 // Defined in 2.1 OBEX Headers, IrOBEX 1.2 | |
| 99 switch (headerId >> 6) | |
| 100 { | |
| 101 case 0x00: | |
| 102 // Null-terminated Unicode text, length prefixed with 2-byte | |
| 103 // unsigned integer. | |
| 104 case 0x01: | |
| 105 // byte sequence, length prefixed with 2 byte unsigned integer. | |
| 106 highByte = *ptr++; | |
| 107 lowByte = *ptr++; | |
| 108 contentLength = (((uint16_t)highByte << 8) | lowByte) - 3; | |
| 109 break; | |
| 110 | |
| 111 case 0x02: | |
| 112 // 1 byte quantity | |
| 113 contentLength = 1; | |
| 114 break; | |
| 115 | |
| 116 case 0x03: | |
| 117 // 4 byte quantity | |
| 118 contentLength = 4; | |
| 119 break; | |
| 120 } | |
| 121 | |
| 122 // Length check to prevent from memory pollusion. | |
| 123 if (ptr + contentLength > aHeaderStart + aTotalLength) { | |
| 124 // Severe error occurred. We can't even believe the received data, so | |
| 125 // clear all headers. | |
| 126 MOZ_ASSERT(false); | |
| 127 aRetHandlerSet->ClearHeaders(); | |
| 128 return false; | |
| 129 } | |
| 130 | |
| 131 aRetHandlerSet->AddHeader(new ObexHeader(headerId, contentLength, ptr)); | |
| 132 ptr += contentLength; | |
| 133 } | |
| 134 | |
| 135 return true; | |
| 136 } | |
| 137 | |
| 138 END_BLUETOOTH_NAMESPACE |
