void
nsSocketTransportService::ProbeMaxCount()
{
NS_ASSERTION(PR_GetCurrentThread() == gSocketThread, "wrong thread");
if (mProbedMaxCount)
return;
mProbedMaxCount = true;
// Allocate and test a PR_Poll up to the gMaxCount number of unconnected
// sockets. See bug 692260 - windows should be able to handle 1000 sockets
// in select() without a problem, but LSPs have been known to balk at lower
// numbers. (64 in the bug).
// Allocate
struct PRPollDesc pfd[SOCKET_LIMIT_TARGET];
uint32_t numAllocated = 0;
for (uint32_t index = 0 ; index < gMaxCount; ++index) {
pfd[index].in_flags = PR_POLL_READ | PR_POLL_WRITE | PR_POLL_EXCEPT;
pfd[index].out_flags = 0;
pfd[index].fd = PR_OpenTCPSocket(PR_AF_INET);
if (!pfd[index].fd) {
SOCKET_LOG(("Socket Limit Test index %d failed\n", index));
if (index < SOCKET_LIMIT_MIN)
gMaxCount = SOCKET_LIMIT_MIN;
else
gMaxCount = index;
break;
}
++numAllocated;
}
// Test
PR_STATIC_ASSERT(SOCKET_LIMIT_MIN >= 32U);
while (gMaxCount <= numAllocated) {
int32_t rv = PR_Poll(pfd, gMaxCount, PR_MillisecondsToInterval(0));
SOCKET_LOG(("Socket Limit Test poll() size=%d rv=%d\n",
gMaxCount, rv));
if (rv >= 0)
break;
SOCKET_LOG(("Socket Limit Test poll confirmationSize=%d rv=%d error=%d\n",
gMaxCount, rv, PR_GetError()));
gMaxCount -= 32;
if (gMaxCount <= SOCKET_LIMIT_MIN) {
gMaxCount = SOCKET_LIMIT_MIN;
break;
}
}
// Free
for (uint32_t index = 0 ; index < numAllocated; ++index)
if (pfd[index].fd)
PR_Close(pfd[index].fd);
Telemetry::Accumulate(Telemetry::NETWORK_PROBE_MAXCOUNT, gMaxCount);
SOCKET_LOG(("Socket Limit Test max was confirmed at %d\n", gMaxCount));
}
/**
* this function is called to prepare mData for writing. the given capacity
* indicates the required minimum storage size for mData, in sizeof(char_type)
* increments. this function returns true if the operation succeeds. it also
* returns the old data and old flags members if mData is newly allocated.
* the old data must be released by the caller.
*/
bool
nsTSubstring_CharT::MutatePrep( size_type capacity, char_type** oldData, uint32_t* oldFlags )
{
// initialize to no old data
*oldData = nullptr;
*oldFlags = 0;
size_type curCapacity = Capacity();
// If |capacity > kMaxCapacity|, then our doubling algorithm may not be
// able to allocate it. Just bail out in cases like that. We don't want
// to be allocating 2GB+ strings anyway.
PR_STATIC_ASSERT((sizeof(nsStringBuffer) & 0x1) == 0);
const size_type kMaxCapacity =
(size_type(-1)/2 - sizeof(nsStringBuffer)) / sizeof(char_type) - 2;
if (capacity > kMaxCapacity) {
// Also assert for |capacity| equal to |size_type(-1)|, since we used to
// use that value to flag immutability.
NS_ASSERTION(capacity != size_type(-1), "Bogus capacity");
return false;
}
// |curCapacity == 0| means that the buffer is immutable or 0-sized, so we
// need to allocate a new buffer. We cannot use the existing buffer even
// though it might be large enough.
if (curCapacity != 0)
{
if (capacity <= curCapacity) {
mFlags &= ~F_VOIDED; // mutation clears voided flag
return true;
}
// Use doubling algorithm when forced to increase available capacity.
size_type temp = curCapacity;
while (temp < capacity)
temp <<= 1;
NS_ASSERTION(XPCOM_MIN(temp, kMaxCapacity) >= capacity,
"should have hit the early return at the top");
capacity = XPCOM_MIN(temp, kMaxCapacity);
}
//
// several cases:
//
// (1) we have a shared buffer (mFlags & F_SHARED)
// (2) we have an owned buffer (mFlags & F_OWNED)
// (3) we have a fixed buffer (mFlags & F_FIXED)
// (4) we have a readonly buffer
//
// requiring that we in some cases preserve the data before creating
// a new buffer complicates things just a bit ;-)
//
size_type storageSize = (capacity + 1) * sizeof(char_type);
// case #1
if (mFlags & F_SHARED)
{
nsStringBuffer* hdr = nsStringBuffer::FromData(mData);
if (!hdr->IsReadonly())
{
nsStringBuffer *newHdr = nsStringBuffer::Realloc(hdr, storageSize);
if (!newHdr)
return false; // out-of-memory (original header left intact)
hdr = newHdr;
mData = (char_type*) hdr->Data();
mFlags &= ~F_VOIDED; // mutation clears voided flag
return true;
}
}
char_type* newData;
uint32_t newDataFlags;
// if we have a fixed buffer of sufficient size, then use it. this helps
// avoid heap allocations.
if ((mFlags & F_CLASS_FIXED) && (capacity < AsFixedString(this)->mFixedCapacity))
{
newData = AsFixedString(this)->mFixedBuf;
newDataFlags = F_TERMINATED | F_FIXED;
}
else
{
// if we reach here then, we must allocate a new buffer. we cannot
// make use of our F_OWNED or F_FIXED buffers because they are not
// large enough.
nsStringBuffer* newHdr = nsStringBuffer::Alloc(storageSize).get();
if (!newHdr)
return false; // we are still in a consistent state
newData = (char_type*) newHdr->Data();
newDataFlags = F_TERMINATED | F_SHARED;
}
// save old data and flags
*oldData = mData;
*oldFlags = mFlags;
mData = newData;
SetDataFlags(newDataFlags);
// mLength does not change
// though we are not necessarily terminated at the moment, now is probably
// still the best time to set F_TERMINATED.
return true;
}
nsresult
nsSVGTransformSMILAttr::AppendSVGTransformToSMILValue(
nsIDOMSVGTransform* aTransform, nsSMILValue& aValue)
{
NS_ASSERTION(aValue.mType == &nsSVGTransformSMILType::sSingleton,
"Unexpected type for SMIL value");
PRUint16 svgTransformType = nsIDOMSVGTransform::SVG_TRANSFORM_MATRIX;
aTransform->GetType(&svgTransformType);
nsCOMPtr<nsIDOMSVGMatrix> matrix;
nsresult rv = aTransform->GetMatrix(getter_AddRefs(matrix));
if (NS_FAILED(rv) || !matrix)
return NS_ERROR_FAILURE;
// nsSVGSMILTransform constructor should be expecting array with 3 params
PR_STATIC_ASSERT(nsSVGSMILTransform::NUM_SIMPLE_PARAMS == 3);
float params[3] = { 0.f };
nsSVGSMILTransform::TransformType transformType;
switch (svgTransformType)
{
case nsIDOMSVGTransform::SVG_TRANSFORM_TRANSLATE:
{
matrix->GetE(¶ms[0]);
matrix->GetF(¶ms[1]);
transformType = nsSVGSMILTransform::TRANSFORM_TRANSLATE;
}
break;
case nsIDOMSVGTransform::SVG_TRANSFORM_SCALE:
{
matrix->GetA(¶ms[0]);
matrix->GetD(¶ms[1]);
transformType = nsSVGSMILTransform::TRANSFORM_SCALE;
}
break;
case nsIDOMSVGTransform::SVG_TRANSFORM_ROTATE:
{
/*
* Unfortunately the SVG 1.1 DOM API for transforms doesn't allow us to
* query the center of rotation so we do some dirty casting to make up
* for it.
*/
nsSVGTransform* svgTransform = static_cast<nsSVGTransform*>(aTransform);
svgTransform->GetAngle(¶ms[0]);
svgTransform->GetRotationOrigin(params[1], params[2]);
transformType = nsSVGSMILTransform::TRANSFORM_ROTATE;
}
break;
case nsIDOMSVGTransform::SVG_TRANSFORM_SKEWX:
{
aTransform->GetAngle(¶ms[0]);
transformType = nsSVGSMILTransform::TRANSFORM_SKEWX;
}
break;
case nsIDOMSVGTransform::SVG_TRANSFORM_SKEWY:
{
aTransform->GetAngle(¶ms[0]);
transformType = nsSVGSMILTransform::TRANSFORM_SKEWY;
}
break;
case nsIDOMSVGTransform::SVG_TRANSFORM_MATRIX:
{
// nsSVGSMILTransform constructor for TRANSFORM_MATRIX type should be
// expecting array with 6 params
PR_STATIC_ASSERT(nsSVGSMILTransform::NUM_STORED_PARAMS == 6);
float mx[6];
matrix->GetA(&mx[0]);
matrix->GetB(&mx[1]);
matrix->GetC(&mx[2]);
matrix->GetD(&mx[3]);
matrix->GetE(&mx[4]);
matrix->GetF(&mx[5]);
return nsSVGTransformSMILType::AppendTransform(nsSVGSMILTransform(mx),
aValue);
}
case nsIDOMSVGTransform::SVG_TRANSFORM_UNKNOWN:
// If it's 'unknown', it's probably not initialised, so just skip it.
return NS_OK;
default:
NS_WARNING("Trying to convert unrecognised SVG transform type");
return NS_ERROR_FAILURE;
}
NS_ABORT_IF_FALSE(transformType != nsSVGSMILTransform::TRANSFORM_MATRIX,
"generalized matrix case should have returned above");
return nsSVGTransformSMILType::
AppendTransform(nsSVGSMILTransform(transformType, params), aValue);
}
bool
WaveReader::LoadFormatChunk()
{
uint32_t fmtSize, rate, channels, frameSize, sampleFormat;
char waveFormat[WAVE_FORMAT_CHUNK_SIZE];
const char* p = waveFormat;
// RIFF chunks are always word (two byte) aligned.
NS_ABORT_IF_FALSE(mDecoder->GetResource()->Tell() % 2 == 0,
"LoadFormatChunk called with unaligned resource");
// The "format" chunk may not directly follow the "riff" chunk, so skip
// over any intermediate chunks.
if (!ScanForwardUntil(FRMT_CHUNK_MAGIC, &fmtSize)) {
return false;
}
if (!ReadAll(waveFormat, sizeof(waveFormat))) {
return false;
}
PR_STATIC_ASSERT(sizeof(uint16_t) +
sizeof(uint16_t) +
sizeof(uint32_t) +
4 +
sizeof(uint16_t) +
sizeof(uint16_t) <= sizeof(waveFormat));
if (ReadUint16LE(&p) != WAVE_FORMAT_ENCODING_PCM) {
NS_WARNING("WAVE is not uncompressed PCM, compressed encodings are not supported");
return false;
}
channels = ReadUint16LE(&p);
rate = ReadUint32LE(&p);
// Skip over average bytes per second field.
p += 4;
frameSize = ReadUint16LE(&p);
sampleFormat = ReadUint16LE(&p);
// PCM encoded WAVEs are not expected to have an extended "format" chunk,
// but I have found WAVEs that have a extended "format" chunk with an
// extension size of 0 bytes. Be polite and handle this rather than
// considering the file invalid. This code skips any extension of the
// "format" chunk.
if (fmtSize > WAVE_FORMAT_CHUNK_SIZE) {
char extLength[2];
const char* p = extLength;
if (!ReadAll(extLength, sizeof(extLength))) {
return false;
}
PR_STATIC_ASSERT(sizeof(uint16_t) <= sizeof(extLength));
uint16_t extra = ReadUint16LE(&p);
if (fmtSize - (WAVE_FORMAT_CHUNK_SIZE + 2) != extra) {
NS_WARNING("Invalid extended format chunk size");
return false;
}
extra += extra % 2;
if (extra > 0) {
PR_STATIC_ASSERT(UINT16_MAX + (UINT16_MAX % 2) < UINT_MAX / sizeof(char));
nsAutoArrayPtr<char> chunkExtension(new char[extra]);
if (!ReadAll(chunkExtension.get(), extra)) {
return false;
}
}
}
// RIFF chunks are always word (two byte) aligned.
NS_ABORT_IF_FALSE(mDecoder->GetResource()->Tell() % 2 == 0,
"LoadFormatChunk left resource unaligned");
// Make sure metadata is fairly sane. The rate check is fairly arbitrary,
// but the channels check is intentionally limited to mono or stereo
// because that's what the audio backend currently supports.
unsigned int actualFrameSize = sampleFormat == 8 ? 1 : 2 * channels;
if (rate < 100 || rate > 96000 ||
channels < 1 || channels > MAX_CHANNELS ||
(frameSize != 1 && frameSize != 2 && frameSize != 4) ||
(sampleFormat != 8 && sampleFormat != 16) ||
frameSize != actualFrameSize) {
NS_WARNING("Invalid WAVE metadata");
return false;
}
ReentrantMonitorAutoEnter monitor(mDecoder->GetReentrantMonitor());
mSampleRate = rate;
mChannels = channels;
mFrameSize = frameSize;
if (sampleFormat == 8) {
mSampleFormat = FORMAT_U8;
} else {
mSampleFormat = FORMAT_S16;
}
return true;
}
/**
* Translate a "rows" or "cols" spec into an array of nsFramesetSpecs
*/
nsresult
HTMLFrameSetElement::ParseRowCol(const nsAString & aValue,
int32_t& aNumSpecs,
nsFramesetSpec** aSpecs)
{
if (aValue.IsEmpty()) {
aNumSpecs = 0;
*aSpecs = nullptr;
return NS_OK;
}
static const PRUnichar sAster('*');
static const PRUnichar sPercent('%');
static const PRUnichar sComma(',');
nsAutoString spec(aValue);
// remove whitespace (Bug 33699) and quotation marks (bug 224598)
// also remove leading/trailing commas (bug 31482)
spec.StripChars(" \n\r\t\"\'");
spec.Trim(",");
// Count the commas. Don't count more than X commas (bug 576447).
PR_STATIC_ASSERT(NS_MAX_FRAMESET_SPEC_COUNT * sizeof(nsFramesetSpec) < (1 << 30));
int32_t commaX = spec.FindChar(sComma);
int32_t count = 1;
while (commaX != kNotFound && count < NS_MAX_FRAMESET_SPEC_COUNT) {
count++;
commaX = spec.FindChar(sComma, commaX + 1);
}
nsFramesetSpec* specs = new nsFramesetSpec[count];
if (!specs) {
*aSpecs = nullptr;
aNumSpecs = 0;
return NS_ERROR_OUT_OF_MEMORY;
}
// Pre-grab the compat mode; we may need it later in the loop.
bool isInQuirks = InNavQuirksMode(OwnerDoc());
// Parse each comma separated token
int32_t start = 0;
int32_t specLen = spec.Length();
for (int32_t i = 0; i < count; i++) {
// Find our comma
commaX = spec.FindChar(sComma, start);
NS_ASSERTION(i == count - 1 || commaX != kNotFound,
"Failed to find comma, somehow");
int32_t end = (commaX == kNotFound) ? specLen : commaX;
// Note: If end == start then it means that the token has no
// data in it other than a terminating comma (or the end of the spec).
// So default to a fixed width of 0.
specs[i].mUnit = eFramesetUnit_Fixed;
specs[i].mValue = 0;
if (end > start) {
int32_t numberEnd = end;
PRUnichar ch = spec.CharAt(numberEnd - 1);
if (sAster == ch) {
specs[i].mUnit = eFramesetUnit_Relative;
numberEnd--;
} else if (sPercent == ch) {
specs[i].mUnit = eFramesetUnit_Percent;
numberEnd--;
// check for "*%"
if (numberEnd > start) {
ch = spec.CharAt(numberEnd - 1);
if (sAster == ch) {
specs[i].mUnit = eFramesetUnit_Relative;
numberEnd--;
}
}
}
// Translate value to an integer
nsAutoString token;
spec.Mid(token, start, numberEnd - start);
// Treat * as 1*
if ((eFramesetUnit_Relative == specs[i].mUnit) &&
(0 == token.Length())) {
specs[i].mValue = 1;
}
else {
// Otherwise just convert to integer.
nsresult err;
specs[i].mValue = token.ToInteger(&err);
if (NS_FAILED(err)) {
specs[i].mValue = 0;
}
}
// Treat 0* as 1* in quirks mode (bug 40383)
if (isInQuirks) {
if ((eFramesetUnit_Relative == specs[i].mUnit) &&
(0 == specs[i].mValue)) {
specs[i].mValue = 1;
}
}
// Catch zero and negative frame sizes for Nav compatibility
// Nav resized absolute and relative frames to "1" and
// percent frames to an even percentage of the width
//
//if (isInQuirks && (specs[i].mValue <= 0)) {
// if (eFramesetUnit_Percent == specs[i].mUnit) {
// specs[i].mValue = 100 / count;
// } else {
// specs[i].mValue = 1;
// }
//} else {
// In standards mode, just set negative sizes to zero
if (specs[i].mValue < 0) {
specs[i].mValue = 0;
}
start = end + 1;
}
}
aNumSpecs = count;
// Transfer ownership to caller here
*aSpecs = specs;
return NS_OK;
}
static SECStatus
rc4_wordconv(RC4Context *cx, unsigned char *output,
unsigned int *outputLen, unsigned int maxOutputLen,
const unsigned char *input, unsigned int inputLen)
{
PR_STATIC_ASSERT(sizeof(PRUword) == sizeof(ptrdiff_t));
unsigned int inOffset = (PRUword)input % WORDSIZE;
unsigned int outOffset = (PRUword)output % WORDSIZE;
register WORD streamWord;
register const WORD *pInWord;
register WORD *pOutWord;
register WORD inWord, nextInWord;
PRUint8 t;
register Stype tmpSi, tmpSj;
register PRUint8 tmpi = cx->i;
register PRUint8 tmpj = cx->j;
unsigned int bufShift, invBufShift;
unsigned int i;
const unsigned char *finalIn;
unsigned char *finalOut;
PORT_Assert(maxOutputLen >= inputLen);
if (maxOutputLen < inputLen) {
PORT_SetError(SEC_ERROR_OUTPUT_LEN);
return SECFailure;
}
if (inputLen < 2*WORDSIZE) {
/* Ignore word conversion, do byte-at-a-time */
return rc4_no_opt(cx, output, outputLen, maxOutputLen, input, inputLen);
}
*outputLen = inputLen;
pInWord = (const WORD *)(input - inOffset);
pOutWord = (WORD *)(output - outOffset);
if (inOffset <= outOffset) {
bufShift = 8*(outOffset - inOffset);
invBufShift = 8*WORDSIZE - bufShift;
} else {
invBufShift = 8*(inOffset - outOffset);
bufShift = 8*WORDSIZE - invBufShift;
}
/*****************************************************************/
/* Step 1: */
/* If the first output word is partial, consume the bytes in the */
/* first partial output word by loading one or two words of */
/* input and shifting them accordingly. Otherwise, just load */
/* in the first word of input. At the end of this block, at */
/* least one partial word of input should ALWAYS be loaded. */
/*****************************************************************/
if (outOffset) {
unsigned int byteCount = WORDSIZE - outOffset;
for (i = 0; i < byteCount; i++) {
ARCFOUR_NEXT_BYTE();
output[i] = cx->S[t] ^ input[i];
}
/* Consumed byteCount bytes of input */
inputLen -= byteCount;
pInWord++;
/* move to next word of output */
pOutWord++;
/* If buffers are relatively misaligned, shift the bytes in inWord
* to be aligned to the output buffer.
*/
if (inOffset < outOffset) {
/* The first input word (which may be partial) has more bytes
* than needed. Copy the remainder to inWord.
*/
unsigned int shift = LEFTMOST_BYTE_SHIFT;
inWord = 0;
for (i = 0; i < outOffset - inOffset; i++) {
inWord |= (WORD)input[byteCount + i] << shift;
shift = NEXT_BYTE_SHIFT(shift);
}
} else if (inOffset > outOffset) {
/* Consumed some bytes in the second input word. Copy the
* remainder to inWord.
*/
inWord = *pInWord++;
inWord = inWord LSH invBufShift;
} else {
inWord = 0;
}
} else {
/* output is word-aligned */
if (inOffset) {
/* Input is not word-aligned. The first word load of input
* will not produce a full word of input bytes, so one word
* must be pre-loaded. The main loop below will load in the
* next input word and shift some of its bytes into inWord
* in order to create a full input word. Note that the main
* loop must execute at least once because the input must
* be at least two words.
*/
unsigned int shift = LEFTMOST_BYTE_SHIFT;
inWord = 0;
for (i = 0; i < WORDSIZE - inOffset; i++) {
inWord |= (WORD)input[i] << shift;
shift = NEXT_BYTE_SHIFT(shift);
}
pInWord++;
} else {
/* Input is word-aligned. The first word load of input
* will produce a full word of input bytes, so nothing
* needs to be loaded here.
*/
inWord = 0;
}
}
/*****************************************************************/
/* Step 2: main loop */
/* At this point the output buffer is word-aligned. Any unused */
/* bytes from above will be in inWord (shifted correctly). If */
/* the input buffer is unaligned relative to the output buffer, */
/* shifting has to be done. */
/*****************************************************************/
if (bufShift) {
/* preloadedByteCount is the number of input bytes pre-loaded
* in inWord.
*/
unsigned int preloadedByteCount = bufShift/8;
for (; inputLen >= preloadedByteCount + WORDSIZE;
inputLen -= WORDSIZE) {
nextInWord = *pInWord++;
inWord |= nextInWord RSH bufShift;
nextInWord = nextInWord LSH invBufShift;
ARCFOUR_NEXT_WORD();
*pOutWord++ = inWord ^ streamWord;
inWord = nextInWord;
}
if (inputLen == 0) {
/* Nothing left to do. */
cx->i = tmpi;
cx->j = tmpj;
return SECSuccess;
}
finalIn = (const unsigned char *)pInWord - preloadedByteCount;
} else {
for (; inputLen >= WORDSIZE; inputLen -= WORDSIZE) {
inWord = *pInWord++;
ARCFOUR_NEXT_WORD();
*pOutWord++ = inWord ^ streamWord;
}
if (inputLen == 0) {
/* Nothing left to do. */
cx->i = tmpi;
cx->j = tmpj;
return SECSuccess;
}
finalIn = (const unsigned char *)pInWord;
}
/*****************************************************************/
/* Step 3: */
/* Do the remaining partial word of input one byte at a time. */
/*****************************************************************/
finalOut = (unsigned char *)pOutWord;
for (i = 0; i < inputLen; i++) {
ARCFOUR_NEXT_BYTE();
finalOut[i] = cx->S[t] ^ finalIn[i];
}
cx->i = tmpi;
cx->j = tmpj;
return SECSuccess;
}
void
nsCSSValue::AppendToString(nsCSSProperty aProperty, nsAString& aResult) const
{
// eCSSProperty_UNKNOWN gets used for some recursive calls below.
NS_ABORT_IF_FALSE((0 <= aProperty &&
aProperty <= eCSSProperty_COUNT_no_shorthands) ||
aProperty == eCSSProperty_UNKNOWN,
"property ID out of range");
nsCSSUnit unit = GetUnit();
if (unit == eCSSUnit_Null) {
return;
}
if (eCSSUnit_String <= unit && unit <= eCSSUnit_Attr) {
if (unit == eCSSUnit_Attr) {
aResult.AppendLiteral("attr(");
}
nsAutoString buffer;
GetStringValue(buffer);
if (unit == eCSSUnit_String) {
nsStyleUtil::AppendEscapedCSSString(buffer, aResult);
} else if (unit == eCSSUnit_Families) {
// XXX We really need to do *some* escaping.
aResult.Append(buffer);
} else {
nsStyleUtil::AppendEscapedCSSIdent(buffer, aResult);
}
}
else if (eCSSUnit_Array <= unit && unit <= eCSSUnit_Steps) {
switch (unit) {
case eCSSUnit_Counter: aResult.AppendLiteral("counter("); break;
case eCSSUnit_Counters: aResult.AppendLiteral("counters("); break;
case eCSSUnit_Cubic_Bezier: aResult.AppendLiteral("cubic-bezier("); break;
case eCSSUnit_Steps: aResult.AppendLiteral("steps("); break;
default: break;
}
nsCSSValue::Array *array = GetArrayValue();
bool mark = false;
for (size_t i = 0, i_end = array->Count(); i < i_end; ++i) {
if (aProperty == eCSSProperty_border_image && i >= 5) {
if (array->Item(i).GetUnit() == eCSSUnit_Null) {
continue;
}
if (i == 5) {
aResult.AppendLiteral(" /");
}
}
if (mark && array->Item(i).GetUnit() != eCSSUnit_Null) {
if (unit == eCSSUnit_Array &&
eCSSProperty_transition_timing_function != aProperty)
aResult.AppendLiteral(" ");
else
aResult.AppendLiteral(", ");
}
if (unit == eCSSUnit_Steps && i == 1) {
NS_ABORT_IF_FALSE(array->Item(i).GetUnit() == eCSSUnit_Enumerated &&
(array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START ||
array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END),
"unexpected value");
if (array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START) {
aResult.AppendLiteral("start");
} else {
aResult.AppendLiteral("end");
}
continue;
}
nsCSSProperty prop =
((eCSSUnit_Counter <= unit && unit <= eCSSUnit_Counters) &&
i == array->Count() - 1)
? eCSSProperty_list_style_type : aProperty;
if (array->Item(i).GetUnit() != eCSSUnit_Null) {
array->Item(i).AppendToString(prop, aResult);
mark = true;
}
}
if (eCSSUnit_Array == unit &&
aProperty == eCSSProperty_transition_timing_function) {
aResult.AppendLiteral(")");
}
}
/* Although Function is backed by an Array, we'll handle it separately
* because it's a bit quirky.
*/
else if (eCSSUnit_Function == unit) {
const nsCSSValue::Array* array = GetArrayValue();
NS_ABORT_IF_FALSE(array->Count() >= 1,
"Functions must have at least one element for the name.");
/* Append the function name. */
const nsCSSValue& functionName = array->Item(0);
if (functionName.GetUnit() == eCSSUnit_Enumerated) {
// We assume that the first argument is always of nsCSSKeyword type.
const nsCSSKeyword functionId =
static_cast<nsCSSKeyword>(functionName.GetIntValue());
nsStyleUtil::AppendEscapedCSSIdent(
NS_ConvertASCIItoUTF16(nsCSSKeywords::GetStringValue(functionId)),
aResult);
} else {
functionName.AppendToString(aProperty, aResult);
}
aResult.AppendLiteral("(");
/* Now, step through the function contents, writing each of them as we go. */
for (size_t index = 1; index < array->Count(); ++index) {
array->Item(index).AppendToString(aProperty, aResult);
/* If we're not at the final element, append a comma. */
if (index + 1 != array->Count())
aResult.AppendLiteral(", ");
}
/* Finally, append the closing parenthesis. */
aResult.AppendLiteral(")");
}
else if (IsCalcUnit()) {
NS_ABORT_IF_FALSE(GetUnit() == eCSSUnit_Calc, "unexpected unit");
CSSValueSerializeCalcOps ops(aProperty, aResult);
css::SerializeCalc(*this, ops);
}
else if (eCSSUnit_Integer == unit) {
aResult.AppendInt(GetIntValue(), 10);
}
else if (eCSSUnit_Enumerated == unit) {
if (eCSSProperty_text_decoration_line == aProperty) {
PRInt32 intValue = GetIntValue();
if (NS_STYLE_TEXT_DECORATION_LINE_NONE == intValue) {
AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
aResult);
} else {
// Ignore the "override all" internal value.
// (It doesn't have a string representation.)
intValue &= ~NS_STYLE_TEXT_DECORATION_LINE_OVERRIDE_ALL;
nsStyleUtil::AppendBitmaskCSSValue(
aProperty, intValue,
NS_STYLE_TEXT_DECORATION_LINE_UNDERLINE,
NS_STYLE_TEXT_DECORATION_LINE_PREF_ANCHORS,
aResult);
}
}
else if (eCSSProperty_marks == aProperty) {
PRInt32 intValue = GetIntValue();
if (intValue == NS_STYLE_PAGE_MARKS_NONE) {
AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
aResult);
} else {
nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
NS_STYLE_PAGE_MARKS_CROP,
NS_STYLE_PAGE_MARKS_REGISTER,
aResult);
}
}
else if (eCSSProperty_unicode_bidi == aProperty) {
PR_STATIC_ASSERT(NS_STYLE_UNICODE_BIDI_NORMAL == 0);
PRInt32 intValue = GetIntValue();
if (NS_STYLE_UNICODE_BIDI_NORMAL == intValue) {
AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
aResult);
} else {
nsStyleUtil::AppendBitmaskCSSValue(
aProperty, intValue,
NS_STYLE_UNICODE_BIDI_EMBED,
NS_STYLE_UNICODE_BIDI_PLAINTEXT,
aResult);
}
}
else {
const nsAFlatCString& name = nsCSSProps::LookupPropertyValue(aProperty, GetIntValue());
AppendASCIItoUTF16(name, aResult);
}
}
else if (eCSSUnit_EnumColor == unit) {
// we can lookup the property in the ColorTable and then
// get a string mapping the name
nsCAutoString str;
if (nsCSSProps::GetColorName(GetIntValue(), str)){
AppendASCIItoUTF16(str, aResult);
} else {
NS_ABORT_IF_FALSE(false, "bad color value");
}
}
else if (eCSSUnit_Color == unit) {
nscolor color = GetColorValue();
if (color == NS_RGBA(0, 0, 0, 0)) {
// Use the strictest match for 'transparent' so we do correct
// round-tripping of all other rgba() values.
aResult.AppendLiteral("transparent");
} else {
PRUint8 a = NS_GET_A(color);
if (a < 255) {
aResult.AppendLiteral("rgba(");
} else {
aResult.AppendLiteral("rgb(");
}
NS_NAMED_LITERAL_STRING(comma, ", ");
aResult.AppendInt(NS_GET_R(color), 10);
aResult.Append(comma);
aResult.AppendInt(NS_GET_G(color), 10);
aResult.Append(comma);
aResult.AppendInt(NS_GET_B(color), 10);
if (a < 255) {
aResult.Append(comma);
aResult.AppendFloat(nsStyleUtil::ColorComponentToFloat(a));
}
aResult.Append(PRUnichar(')'));
}
}
else if (eCSSUnit_URL == unit || eCSSUnit_Image == unit) {
aResult.Append(NS_LITERAL_STRING("url("));
nsStyleUtil::AppendEscapedCSSString(
nsDependentString(GetOriginalURLValue()), aResult);
aResult.Append(NS_LITERAL_STRING(")"));
}
else if (eCSSUnit_Element == unit) {
aResult.Append(NS_LITERAL_STRING("-moz-element(#"));
nsAutoString tmpStr;
GetStringValue(tmpStr);
nsStyleUtil::AppendEscapedCSSIdent(tmpStr, aResult);
aResult.Append(NS_LITERAL_STRING(")"));
}
else if (eCSSUnit_Percent == unit) {
aResult.AppendFloat(GetPercentValue() * 100.0f);
}
else if (eCSSUnit_Percent < unit) { // length unit
aResult.AppendFloat(GetFloatValue());
}
else if (eCSSUnit_Gradient == unit) {
nsCSSValueGradient* gradient = GetGradientValue();
if (gradient->mIsRepeating) {
if (gradient->mIsRadial)
aResult.AppendLiteral("-moz-repeating-radial-gradient(");
else
aResult.AppendLiteral("-moz-repeating-linear-gradient(");
} else {
if (gradient->mIsRadial)
aResult.AppendLiteral("-moz-radial-gradient(");
else
aResult.AppendLiteral("-moz-linear-gradient(");
}
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None ||
gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None ||
gradient->mAngle.GetUnit() != eCSSUnit_None) {
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None) {
gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position,
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None) {
gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position,
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
gradient->mAngle.AppendToString(aProperty, aResult);
}
aResult.AppendLiteral(", ");
}
if (gradient->mIsRadial &&
(gradient->mRadialShape.GetUnit() != eCSSUnit_None ||
gradient->mRadialSize.GetUnit() != eCSSUnit_None)) {
if (gradient->mRadialShape.GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->mRadialShape.GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient shape");
PRInt32 intValue = gradient->mRadialShape.GetIntValue();
NS_ABORT_IF_FALSE(intValue != NS_STYLE_GRADIENT_SHAPE_LINEAR,
"radial gradient with linear shape?!");
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientShapeKTable),
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->mRadialSize.GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->mRadialSize.GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient size");
PRInt32 intValue = gradient->mRadialSize.GetIntValue();
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientSizeKTable),
aResult);
}
aResult.AppendLiteral(", ");
}
for (PRUint32 i = 0 ;;) {
gradient->mStops[i].mColor.AppendToString(aProperty, aResult);
if (gradient->mStops[i].mLocation.GetUnit() != eCSSUnit_None) {
aResult.AppendLiteral(" ");
gradient->mStops[i].mLocation.AppendToString(aProperty, aResult);
}
if (++i == gradient->mStops.Length()) {
break;
}
aResult.AppendLiteral(", ");
}
aResult.AppendLiteral(")");
} else if (eCSSUnit_Pair == unit) {
GetPairValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_Triplet == unit) {
GetTripletValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_Rect == unit) {
GetRectValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_List == unit || eCSSUnit_ListDep == unit) {
GetListValue()->AppendToString(aProperty, aResult);
} else if (eCSSUnit_PairList == unit || eCSSUnit_PairListDep == unit) {
GetPairListValue()->AppendToString(aProperty, aResult);
}
switch (unit) {
case eCSSUnit_Null: break;
case eCSSUnit_Auto: aResult.AppendLiteral("auto"); break;
case eCSSUnit_Inherit: aResult.AppendLiteral("inherit"); break;
case eCSSUnit_Initial: aResult.AppendLiteral("-moz-initial"); break;
case eCSSUnit_None: aResult.AppendLiteral("none"); break;
case eCSSUnit_Normal: aResult.AppendLiteral("normal"); break;
case eCSSUnit_System_Font: aResult.AppendLiteral("-moz-use-system-font"); break;
case eCSSUnit_All: aResult.AppendLiteral("all"); break;
case eCSSUnit_Dummy:
case eCSSUnit_DummyInherit:
NS_ABORT_IF_FALSE(false, "should never serialize");
break;
case eCSSUnit_String: break;
case eCSSUnit_Ident: break;
case eCSSUnit_Families: break;
case eCSSUnit_URL: break;
case eCSSUnit_Image: break;
case eCSSUnit_Element: break;
case eCSSUnit_Array: break;
case eCSSUnit_Attr:
case eCSSUnit_Cubic_Bezier:
case eCSSUnit_Steps:
case eCSSUnit_Counter:
case eCSSUnit_Counters: aResult.Append(PRUnichar(')')); break;
case eCSSUnit_Local_Font: break;
case eCSSUnit_Font_Format: break;
case eCSSUnit_Function: break;
case eCSSUnit_Calc: break;
case eCSSUnit_Calc_Plus: break;
case eCSSUnit_Calc_Minus: break;
case eCSSUnit_Calc_Times_L: break;
case eCSSUnit_Calc_Times_R: break;
case eCSSUnit_Calc_Divided: break;
case eCSSUnit_Integer: break;
case eCSSUnit_Enumerated: break;
case eCSSUnit_EnumColor: break;
case eCSSUnit_Color: break;
case eCSSUnit_Percent: aResult.Append(PRUnichar('%')); break;
case eCSSUnit_Number: break;
case eCSSUnit_Gradient: break;
case eCSSUnit_Pair: break;
case eCSSUnit_Triplet: break;
case eCSSUnit_Rect: break;
case eCSSUnit_List: break;
case eCSSUnit_ListDep: break;
case eCSSUnit_PairList: break;
case eCSSUnit_PairListDep: break;
case eCSSUnit_Inch: aResult.AppendLiteral("in"); break;
case eCSSUnit_Millimeter: aResult.AppendLiteral("mm"); break;
case eCSSUnit_PhysicalMillimeter: aResult.AppendLiteral("mozmm"); break;
case eCSSUnit_Centimeter: aResult.AppendLiteral("cm"); break;
case eCSSUnit_Point: aResult.AppendLiteral("pt"); break;
case eCSSUnit_Pica: aResult.AppendLiteral("pc"); break;
case eCSSUnit_EM: aResult.AppendLiteral("em"); break;
case eCSSUnit_XHeight: aResult.AppendLiteral("ex"); break;
case eCSSUnit_Char: aResult.AppendLiteral("ch"); break;
case eCSSUnit_RootEM: aResult.AppendLiteral("rem"); break;
case eCSSUnit_Pixel: aResult.AppendLiteral("px"); break;
case eCSSUnit_Degree: aResult.AppendLiteral("deg"); break;
case eCSSUnit_Grad: aResult.AppendLiteral("grad"); break;
case eCSSUnit_Radian: aResult.AppendLiteral("rad"); break;
case eCSSUnit_Hertz: aResult.AppendLiteral("Hz"); break;
case eCSSUnit_Kilohertz: aResult.AppendLiteral("kHz"); break;
case eCSSUnit_Seconds: aResult.Append(PRUnichar('s')); break;
case eCSSUnit_Milliseconds: aResult.AppendLiteral("ms"); break;
}
}
nsresult
Key::EncodeJSVal(JSContext* aCx, const jsval aVal, PRUint8 aTypeOffset)
{
PR_STATIC_ASSERT(eMaxType * MaxArrayCollapse < 256);
if (JSVAL_IS_STRING(aVal)) {
nsDependentJSString str;
if (!str.init(aCx, aVal)) {
return NS_ERROR_OUT_OF_MEMORY;
}
EncodeString(str, aTypeOffset);
return NS_OK;
}
if (JSVAL_IS_INT(aVal)) {
EncodeNumber((double)JSVAL_TO_INT(aVal), eFloat + aTypeOffset);
return NS_OK;
}
if (JSVAL_IS_DOUBLE(aVal)) {
double d = JSVAL_TO_DOUBLE(aVal);
if (DOUBLE_IS_NaN(d)) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
EncodeNumber(d, eFloat + aTypeOffset);
return NS_OK;
}
if (!JSVAL_IS_PRIMITIVE(aVal)) {
JSObject* obj = JSVAL_TO_OBJECT(aVal);
if (JS_IsArrayObject(aCx, obj)) {
aTypeOffset += eMaxType;
if (aTypeOffset == eMaxType * MaxArrayCollapse) {
mBuffer.Append(aTypeOffset);
aTypeOffset = 0;
}
NS_ASSERTION((aTypeOffset % eMaxType) == 0 &&
aTypeOffset < (eMaxType * MaxArrayCollapse),
"Wrong typeoffset");
jsuint length;
if (!JS_GetArrayLength(aCx, obj, &length)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
for (jsuint index = 0; index < length; index++) {
jsval val;
if (!JS_GetElement(aCx, obj, index, &val)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsresult rv = EncodeJSVal(aCx, val, aTypeOffset);
NS_ENSURE_SUCCESS(rv, rv);
aTypeOffset = 0;
}
mBuffer.Append(eTerminator + aTypeOffset);
return NS_OK;
}
if (JS_ObjectIsDate(aCx, obj)) {
EncodeNumber(js_DateGetMsecSinceEpoch(aCx, obj), eDate + aTypeOffset);
return NS_OK;
}
}
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
bool
WaveReader::LoadAllChunks(nsAutoPtr<nsHTMLMediaElement::MetadataTags> &aTags)
{
// Chunks are always word (two byte) aligned.
NS_ABORT_IF_FALSE(mDecoder->GetResource()->Tell() % 2 == 0,
"LoadAllChunks called with unaligned resource");
bool loadFormatChunk = false;
bool findDataOffset = false;
for (;;) {
static const unsigned int CHUNK_HEADER_SIZE = 8;
char chunkHeader[CHUNK_HEADER_SIZE];
const char* p = chunkHeader;
if (!ReadAll(chunkHeader, sizeof(chunkHeader))) {
return false;
}
PR_STATIC_ASSERT(sizeof(uint32_t) * 2 <= CHUNK_HEADER_SIZE);
uint32_t magic = ReadUint32BE(&p);
uint32_t chunkSize = ReadUint32LE(&p);
int64_t chunkStart = GetPosition();
switch (magic) {
case FRMT_CHUNK_MAGIC:
loadFormatChunk = LoadFormatChunk(chunkSize);
if (!loadFormatChunk) {
return false;
}
break;
case LIST_CHUNK_MAGIC:
if (!aTags) {
LoadListChunk(chunkSize, aTags);
}
break;
case DATA_CHUNK_MAGIC:
findDataOffset = FindDataOffset(chunkSize);
return loadFormatChunk && findDataOffset;
default:
break;
}
// RIFF chunks are two-byte aligned, so round up if necessary.
chunkSize += chunkSize % 2;
// Move forward to next chunk
CheckedInt64 forward = CheckedInt64(chunkStart) + chunkSize - GetPosition();
if (!forward.isValid() || forward.value() < 0) {
return false;
}
static const int64_t MAX_CHUNK_SIZE = 1 << 16;
PR_STATIC_ASSERT(uint64_t(MAX_CHUNK_SIZE) < UINT_MAX / sizeof(char));
nsAutoArrayPtr<char> chunk(new char[MAX_CHUNK_SIZE]);
while (forward.value() > 0) {
int64_t size = NS_MIN(forward.value(), MAX_CHUNK_SIZE);
if (!ReadAll(chunk.get(), size)) {
return false;
}
forward -= size;
}
}
return false;
}
bool
WaveReader::LoadListChunk(uint32_t aChunkSize,
nsAutoPtr<nsHTMLMediaElement::MetadataTags> &aTags)
{
// List chunks are always word (two byte) aligned.
NS_ABORT_IF_FALSE(mDecoder->GetResource()->Tell() % 2 == 0,
"LoadListChunk called with unaligned resource");
static const unsigned int MAX_CHUNK_SIZE = 1 << 16;
PR_STATIC_ASSERT(MAX_CHUNK_SIZE < UINT_MAX / sizeof(char));
if (aChunkSize > MAX_CHUNK_SIZE) {
return false;
}
nsAutoArrayPtr<char> chunk(new char[aChunkSize]);
if (!ReadAll(chunk.get(), aChunkSize)) {
return false;
}
static const uint32_t INFO_LIST_MAGIC = 0x494e464f;
const char *p = chunk.get();
if (ReadUint32BE(&p) != INFO_LIST_MAGIC) {
return false;
}
const waveIdToName ID_TO_NAME[] = {
{ 0x49415254, NS_LITERAL_CSTRING("artist") }, // IART
{ 0x49434d54, NS_LITERAL_CSTRING("comments") }, // ICMT
{ 0x49474e52, NS_LITERAL_CSTRING("genre") }, // IGNR
{ 0x494e414d, NS_LITERAL_CSTRING("name") }, // INAM
};
const char* const end = chunk.get() + aChunkSize;
aTags = new nsHTMLMediaElement::MetadataTags;
aTags->Init();
while (p + 8 < end) {
uint32_t id = ReadUint32BE(&p);
// Uppercase tag id, inspired by GStreamer's Wave parser.
id &= 0xDFDFDFDF;
uint32_t length = ReadUint32LE(&p);
// Subchunk shall not exceed parent chunk.
if (p + length > end) {
break;
}
nsCString val(p, length);
if (val[length - 1] == '\0') {
val.SetLength(length - 1);
}
// Chunks in List::INFO are always word (two byte) aligned. So round up if
// necessary.
length += length % 2;
p += length;
if (!IsUTF8(val)) {
continue;
}
for (size_t i = 0; i < mozilla::ArrayLength(ID_TO_NAME); ++i) {
if (id == ID_TO_NAME[i].id) {
aTags->Put(ID_TO_NAME[i].name, val);
break;
}
}
}
return true;
}
SECStatus
PRNGTEST_RunHealthTests()
{
static const PRUint8 entropy[] = {
0x8e, 0x9c, 0x0d, 0x25, 0x75, 0x22, 0x04, 0xf9,
0xc5, 0x79, 0x10, 0x8b, 0x23, 0x79, 0x37, 0x14,
0x9f, 0x2c, 0xc7, 0x0b, 0x39, 0xf8, 0xee, 0xef,
0x95, 0x0c, 0x97, 0x59, 0xfc, 0x0a, 0x85, 0x41,
0x76, 0x9d, 0x6d, 0x67, 0x00, 0x4e, 0x19, 0x12,
0x02, 0x16, 0x53, 0xea, 0xf2, 0x73, 0xd7, 0xd6,
0x7f, 0x7e, 0xc8, 0xae, 0x9c, 0x09, 0x99, 0x7d,
0xbb, 0x9e, 0x48, 0x7f, 0xbb, 0x96, 0x46, 0xb3,
0x03, 0x75, 0xf8, 0xc8, 0x69, 0x45, 0x3f, 0x97,
0x5e, 0x2e, 0x48, 0xe1, 0x5d, 0x58, 0x97, 0x4c
};
static const PRUint8 rng_known_result[] = {
0x16, 0xe1, 0x8c, 0x57, 0x21, 0xd8, 0xf1, 0x7e,
0x5a, 0xa0, 0x16, 0x0b, 0x7e, 0xa6, 0x25, 0xb4,
0x24, 0x19, 0xdb, 0x54, 0xfa, 0x35, 0x13, 0x66,
0xbb, 0xaa, 0x2a, 0x1b, 0x22, 0x33, 0x2e, 0x4a,
0x14, 0x07, 0x9d, 0x52, 0xfc, 0x73, 0x61, 0x48,
0xac, 0xc1, 0x22, 0xfc, 0xa4, 0xfc, 0xac, 0xa4,
0xdb, 0xda, 0x5b, 0x27, 0x33, 0xc4, 0xb3
};
static const PRUint8 reseed_entropy[] = {
0xc6, 0x0b, 0x0a, 0x30, 0x67, 0x07, 0xf4, 0xe2,
0x24, 0xa7, 0x51, 0x6f, 0x5f, 0x85, 0x3e, 0x5d,
0x67, 0x97, 0xb8, 0x3b, 0x30, 0x9c, 0x7a, 0xb1,
0x52, 0xc6, 0x1b, 0xc9, 0x46, 0xa8, 0x62, 0x79
};
static const PRUint8 additional_input[] = {
0x86, 0x82, 0x28, 0x98, 0xe7, 0xcb, 0x01, 0x14,
0xae, 0x87, 0x4b, 0x1d, 0x99, 0x1b, 0xc7, 0x41,
0x33, 0xff, 0x33, 0x66, 0x40, 0x95, 0x54, 0xc6,
0x67, 0x4d, 0x40, 0x2a, 0x1f, 0xf9, 0xeb, 0x65
};
static const PRUint8 rng_reseed_result[] = {
0x02, 0x0c, 0xc6, 0x17, 0x86, 0x49, 0xba, 0xc4,
0x7b, 0x71, 0x35, 0x05, 0xf0, 0xdb, 0x4a, 0xc2,
0x2c, 0x38, 0xc1, 0xa4, 0x42, 0xe5, 0x46, 0x4a,
0x7d, 0xf0, 0xbe, 0x47, 0x88, 0xb8, 0x0e, 0xc6,
0x25, 0x2b, 0x1d, 0x13, 0xef, 0xa6, 0x87, 0x96,
0xa3, 0x7d, 0x5b, 0x80, 0xc2, 0x38, 0x76, 0x61,
0xc7, 0x80, 0x5d, 0x0f, 0x05, 0x76, 0x85
};
static const PRUint8 rng_no_reseed_result[] = {
0xc4, 0x40, 0x41, 0x8c, 0xbf, 0x2f, 0x70, 0x23,
0x88, 0xf2, 0x7b, 0x30, 0xc3, 0xca, 0x1e, 0xf3,
0xef, 0x53, 0x81, 0x5d, 0x30, 0xed, 0x4c, 0xf1,
0xff, 0x89, 0xa5, 0xee, 0x92, 0xf8, 0xc0, 0x0f,
0x88, 0x53, 0xdf, 0xb6, 0x76, 0xf0, 0xaa, 0xd3,
0x2e, 0x1d, 0x64, 0x37, 0x3e, 0xe8, 0x4a, 0x02,
0xff, 0x0a, 0x7f, 0xe5, 0xe9, 0x2b, 0x6d
};
SECStatus rng_status = SECSuccess;
PR_STATIC_ASSERT(sizeof(rng_known_result) >= sizeof(rng_reseed_result));
PRUint8 result[sizeof(rng_known_result)];
/********************************************/
/* First test instantiate error path. */
/* In this case we supply enough entropy, */
/* but not enough seed. This will trigger */
/* the code that checks for a entropy */
/* source failure. */
/********************************************/
rng_status = PRNGTEST_Instantiate(entropy, 256 / PR_BITS_PER_BYTE,
NULL, 0, NULL, 0);
if (rng_status == SECSuccess) {
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
if (PORT_GetError() != SEC_ERROR_NEED_RANDOM) {
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
/* we failed with the proper error code, we can continue */
/********************************************/
/* Generate random bytes with a known seed. */
/********************************************/
rng_status = PRNGTEST_Instantiate(entropy, sizeof entropy,
NULL, 0, NULL, 0);
if (rng_status != SECSuccess) {
/* Error set by PRNGTEST_Instantiate */
return SECFailure;
}
rng_status = PRNGTEST_Generate(result, sizeof rng_known_result, NULL, 0);
if ((rng_status != SECSuccess) ||
(PORT_Memcmp(result, rng_known_result,
sizeof rng_known_result) != 0)) {
PRNGTEST_Uninstantiate();
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
rng_status = PRNGTEST_Reseed(reseed_entropy, sizeof reseed_entropy,
additional_input, sizeof additional_input);
if (rng_status != SECSuccess) {
/* Error set by PRNG_Reseed */
PRNGTEST_Uninstantiate();
return SECFailure;
}
rng_status = PRNGTEST_Generate(result, sizeof rng_reseed_result, NULL, 0);
if ((rng_status != SECSuccess) ||
(PORT_Memcmp(result, rng_reseed_result,
sizeof rng_reseed_result) != 0)) {
PRNGTEST_Uninstantiate();
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
/* This magic forces the reseed count to it's max count, so we can see if
* PRNGTEST_Generate will actually when it reaches it's count */
rng_status = PRNGTEST_Reseed(NULL, 0, NULL, 0);
if (rng_status != SECSuccess) {
PRNGTEST_Uninstantiate();
/* Error set by PRNG_Reseed */
return SECFailure;
}
/* This generate should now reseed */
rng_status = PRNGTEST_Generate(result, sizeof rng_reseed_result, NULL, 0);
if ((rng_status != SECSuccess) ||
/* NOTE we fail if the result is equal to the no_reseed_result.
* no_reseed_result is the value we would have gotten if we didn't
* do an automatic reseed in PRNGTEST_Generate */
(PORT_Memcmp(result, rng_no_reseed_result,
sizeof rng_no_reseed_result) == 0)) {
PRNGTEST_Uninstantiate();
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
/* make sure reseed fails when we don't supply enough entropy */
rng_status = PRNGTEST_Reseed(reseed_entropy, 4, NULL, 0);
if (rng_status == SECSuccess) {
PRNGTEST_Uninstantiate();
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
if (PORT_GetError() != SEC_ERROR_NEED_RANDOM) {
PRNGTEST_Uninstantiate();
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
rng_status = PRNGTEST_Uninstantiate();
if (rng_status != SECSuccess) {
/* Error set by PRNG_Uninstantiate */
return rng_status;
}
/* make sure uninstantiate fails if the contest is not initiated (also tests
* if the context was cleared in the previous Uninstantiate) */
rng_status = PRNGTEST_Uninstantiate();
if (rng_status == SECSuccess) {
PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
return SECFailure;
}
if (PORT_GetError() != SEC_ERROR_LIBRARY_FAILURE) {
return rng_status;
}
return SECSuccess;
}
/*
** Update the global random number generator with more seeding
** material.
*/
SECStatus
RNG_RandomUpdate(const void *data, size_t bytes)
{
SECStatus rv;
/* Make sure our assumption that size_t is unsigned is true */
PR_STATIC_ASSERT(((size_t)-1) > (size_t)1);
#if defined(NS_PTR_GT_32) || (defined(NSS_USE_64) && !defined(NS_PTR_LE_32))
/*
* NIST 800-90 requires us to verify our inputs. This value can
* come from the application, so we need to make sure it's within the
* spec. The spec says it must be less than 2^32 bytes (2^35 bits).
* This can only happen if size_t is greater than 32 bits (i.e. on
* most 64 bit platforms). The 90% case (perhaps 100% case), size_t
* is less than or equal to 32 bits if the platform is not 64 bits, and
* greater than 32 bits if it is a 64 bit platform. The corner
* cases are handled with explicit defines NS_PTR_GT_32 and NS_PTR_LE_32.
*
* In general, neither NS_PTR_GT_32 nor NS_PTR_LE_32 will need to be
* defined. If you trip over the next two size ASSERTS at compile time,
* you will need to define them for your platform.
*
* if 'sizeof(size_t) > 4' is triggered it means that we were expecting
* sizeof(size_t) to be greater than 4, but it wasn't. Setting
* NS_PTR_LE_32 will correct that mistake.
*
* if 'sizeof(size_t) <= 4' is triggered, it means that we were expecting
* sizeof(size_t) to be less than or equal to 4, but it wasn't. Setting
* NS_PTR_GT_32 will correct that mistake.
*/
PR_STATIC_ASSERT(sizeof(size_t) > 4);
if (bytes > (size_t)PRNG_MAX_ADDITIONAL_BYTES) {
bytes = PRNG_MAX_ADDITIONAL_BYTES;
}
#else
PR_STATIC_ASSERT(sizeof(size_t) <= 4);
#endif
PZ_Lock(globalrng->lock);
/* if we're passed more than our additionalDataCache, simply
* call reseed with that data */
if (bytes > sizeof(globalrng->additionalDataCache)) {
rv = prng_reseed_test(globalrng, NULL, 0, data, (unsigned int)bytes);
/* if we aren't going to fill or overflow the buffer, just cache it */
} else if (bytes < ((sizeof globalrng->additionalDataCache) - globalrng->additionalAvail)) {
PORT_Memcpy(globalrng->additionalDataCache + globalrng->additionalAvail,
data, bytes);
globalrng->additionalAvail += (PRUint32)bytes;
rv = SECSuccess;
} else {
/* we are going to fill or overflow the buffer. In this case we will
* fill the entropy buffer, reseed with it, start a new buffer with the
* remainder. We know the remainder will fit in the buffer because
* we already handled the case where bytes > the size of the buffer.
*/
size_t bufRemain = (sizeof globalrng->additionalDataCache) - globalrng->additionalAvail;
/* fill the rest of the buffer */
if (bufRemain) {
PORT_Memcpy(globalrng->additionalDataCache + globalrng->additionalAvail,
data, bufRemain);
data = ((unsigned char *)data) + bufRemain;
bytes -= bufRemain;
}
/* reseed from buffer */
rv = prng_reseed_test(globalrng, NULL, 0,
globalrng->additionalDataCache,
sizeof globalrng->additionalDataCache);
/* copy the rest into the cache */
PORT_Memcpy(globalrng->additionalDataCache, data, bytes);
globalrng->additionalAvail = (PRUint32)bytes;
}
PZ_Unlock(globalrng->lock);
return rv;
}
