diff options
| -rw-r--r-- | debian/changelog | 2 | ||||
| -rw-r--r-- | debian/patches/401_nxcomp_big-requests.full+lite.patch | 453 | ||||
| -rw-r--r-- | debian/patches/series | 1 |
3 files changed, 456 insertions, 0 deletions
diff --git a/debian/changelog b/debian/changelog index 69fc02d81..85c337a74 100644 --- a/debian/changelog +++ b/debian/changelog @@ -13,6 +13,8 @@ nx-libs (2:3.5.0.28-0x2go1) UNRELEASED; urgency=medium 605_nxcomp_Types.h-dont-use-STL-internals-on-libc++.full+lite.patch. It is an nxcomp patch that needs to be applied in the nx-libs-lite _and_ the nx-libs-full tarball release. + * Add 401_nxcomp_big-requests.full+lite.patch. Support usage of the + BIG-REQUESTS X11 extension on the server-side. (See Debian bug #766299). * debian/libnx-x11.postinst: + Don't use dpkg-architecture (bin:package dpkg-dev) in postinst script. Instead prep a libnx-x11.postinst script at build time. (Fixes: diff --git a/debian/patches/401_nxcomp_big-requests.full+lite.patch b/debian/patches/401_nxcomp_big-requests.full+lite.patch new file mode 100644 index 000000000..ede490d0c --- /dev/null +++ b/debian/patches/401_nxcomp_big-requests.full+lite.patch @@ -0,0 +1,453 @@ +--- a/nxcomp/ClientChannel.cpp ++++ b/nxcomp/ClientChannel.cpp +@@ -447,6 +447,26 @@ + } + } + ++ // Get other bits of the header, so will not need to refer to them again ++ unsigned char inputDataByte = inputMessage[1]; ++ unsigned int buffer2 = GetUINT(inputMessage + 2, bigEndian_); ++ unsigned int inputDataSize = buffer2 - 1; ++ if (buffer2 == 0) ++ { ++ // BIG-REQUESTS ++ inputMessage += 4; ++ inputLength -= 4; ++ inputDataSize = GetULONG(inputMessage, bigEndian_) - 2; ++ } ++ if (inputLength != (4 * (inputDataSize + 1))) ++ { ++ #ifdef WARNING ++ *logofs << "handleRead: inputLength=" << inputLength ++ << " mismatch inputDataSize=" << inputDataSize ++ << ".\n" << logofs_flush; ++ #endif ++ } ++ + // + // Go to the message's specific encoding. + // +@@ -501,8 +521,36 @@ + encodeBuffer.encodeCachedValue(format, 8, + clientCache_ -> changePropertyFormatCache); + unsigned int dataLength = GetULONG(inputMessage + 20, bigEndian_); ++ ++ // Self-preserving sanity check (otherwise we crash and dump core): ++ // some clients do this when not getting their beloved BIG-REQUESTS. ++ unsigned int maxLength = 0; ++ if (format == 8) ++ { ++ maxLength = inputLength - 24; ++ } ++ else if (format == 32) ++ { ++ maxLength = (inputLength - 24) >> 2; ++ } ++ else if (format == 16) ++ { ++ maxLength = (inputLength - 24) >> 1; ++ } ++ if (dataLength > maxLength) ++ { ++ #ifdef WARNING ++ *logofs << "ChangeProperty bogus dataLength=" << dataLength ++ << " set to " << maxLength ++ << " when format=" << (int)format ++ << " inputLength=" << inputLength ++ << ".\n" << logofs_flush; ++ #endif ++ dataLength = maxLength; ++ } ++ + encodeBuffer.encodeValue(dataLength, 32, 6); +- encodeBuffer.encodeValue(inputMessage[1], 2); ++ encodeBuffer.encodeValue(inputDataByte, 2); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + encodeBuffer.encodeCachedValue(GetULONG(inputMessage + 8, bigEndian_), 29, +@@ -533,7 +581,7 @@ + nextSrc += 4; + } + } +- else ++ else if (format == 16) + { + for (unsigned int i = 0; i < dataLength; i++) + { +@@ -541,6 +589,13 @@ + nextSrc += 2; + } + } ++ else ++ { ++ #ifdef WARNING ++ *logofs << "ChangeProperty bogus format=" << (int)format ++ << ".\n" << logofs_flush; ++ #endif ++ } + } + break; + case X_SendEvent: +@@ -562,7 +617,7 @@ + break; + } + +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + unsigned int window = GetULONG(inputMessage + 4, bigEndian_); + + if (window == 0 || window == 1) +@@ -599,7 +654,7 @@ + break; + case X_ChangeWindowAttributes: + { +- encodeBuffer.encodeValue((inputLength - 12) >> 2, 4); ++ encodeBuffer.encodeValue(inputDataSize - 2, 4); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + unsigned int bitmask = GetULONG(inputMessage + 8, bigEndian_); +@@ -654,7 +709,7 @@ + break; + } + +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + const unsigned char *nextSrc = inputMessage + 8; +@@ -1000,12 +1055,12 @@ + { + #ifdef TARGETS + +- *logofs << "handleRead: X_CreatePixmap depth " << (unsigned) inputMessage[1] ++ *logofs << "handleRead: X_CreatePixmap depth " << (unsigned) inputDataByte + << ", pixmap id " << GetULONG(inputMessage + 4, bigEndian_) + << ", drawable " << GetULONG(inputMessage + 8, bigEndian_) + << ", width " << GetUINT(inputMessage + 12, bigEndian_) + << ", height " << GetUINT(inputMessage + 14, bigEndian_) +- << ", size " << GetUINT(inputMessage + 2, bigEndian_) << 2 ++ << ", length " << inputLength + << ".\n" << logofs_flush; + + unsigned int p_id = GetULONG(inputMessage + 4, bigEndian_); +@@ -1054,7 +1109,7 @@ + #endif + + unsigned bitmask = GetULONG(inputMessage + 28, bigEndian_); +- encodeBuffer.encodeCachedValue((unsigned int) inputMessage[1], 8, ++ encodeBuffer.encodeCachedValue((unsigned int) inputDataByte, 8, + clientCache_ -> depthCache); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 8, bigEndian_), + clientCache_ -> windowCache); +@@ -1138,7 +1193,7 @@ + break; + } + +- unsigned int numPoints = ((inputLength - 16) >> 2); ++ unsigned int numPoints = (inputDataSize - 3); + + if (control -> isProtoStep10() == 1) + { +@@ -1209,7 +1264,7 @@ + break; + case X_FreeColors: + { +- unsigned int numPixels = GetUINT(inputMessage + 2, bigEndian_) - 3; ++ unsigned int numPixels = inputDataSize - 2; + encodeBuffer.encodeValue(numPixels, 16, 4); + encodeBuffer.encodeCachedValue(GetULONG(inputMessage + 4, bigEndian_), 29, + clientCache_ -> colormapCache); +@@ -1378,7 +1433,7 @@ + break; + } + +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + unsigned int property = GetULONG(inputMessage + 8, bigEndian_); +@@ -1404,7 +1459,7 @@ + break; + case X_GrabButton: + { +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + encodeBuffer.encodeCachedValue(GetUINT(inputMessage + 8, bigEndian_), 16, +@@ -1423,7 +1478,7 @@ + break; + case X_GrabPointer: + { +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + encodeBuffer.encodeCachedValue(GetUINT(inputMessage + 8, bigEndian_), 16, +@@ -1448,7 +1503,7 @@ + break; + case X_GrabKeyboard: + { +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> windowCache); + unsigned int timestamp = GetULONG(inputMessage + 8, bigEndian_); +@@ -1673,7 +1728,7 @@ + break; + } + +- unsigned int textLength = (unsigned int) inputMessage[1]; ++ unsigned int textLength = (unsigned int) inputDataByte; + encodeBuffer.encodeCachedValue(textLength, 8, + clientCache_ -> imageTextLengthCache, 4); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, +@@ -1740,7 +1795,7 @@ + break; + } + +- unsigned int textLength = (unsigned int) inputMessage[1]; ++ unsigned int textLength = (unsigned int) inputDataByte; + encodeBuffer.encodeCachedValue(textLength, 8, + clientCache_ -> imageTextLengthCache, 4); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, +@@ -1797,7 +1852,7 @@ + + unsigned int nameLength = GetUINT(inputMessage + 4, bigEndian_); + encodeBuffer.encodeValue(nameLength, 16, 6); +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + const unsigned char *nextSrc = inputMessage + 8; + + if (control -> isProtoStep7() == 1) +@@ -2269,8 +2324,8 @@ + break; + } + +- encodeBuffer.encodeValue(GetUINT(inputMessage + 2, bigEndian_) - 3, 16, 4); +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeValue(inputDataSize - 2, 32, 4); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> drawableCache); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 8, bigEndian_), +@@ -2336,8 +2391,8 @@ + break; + } + +- encodeBuffer.encodeValue(GetUINT(inputMessage + 2, bigEndian_) - 3, 16, 4); +- encodeBuffer.encodeBoolValue((unsigned int) inputMessage[1]); ++ encodeBuffer.encodeValue(inputDataSize - 2, 32, 4); ++ encodeBuffer.encodeBoolValue((unsigned int) inputDataByte); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, + bigEndian_), clientCache_ -> drawableCache); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 8, +@@ -2370,8 +2425,7 @@ + break; + case X_PolyRectangle: + { +- encodeBuffer.encodeValue((GetUINT(inputMessage + 2, +- bigEndian_) - 3) >> 1, 16, 3); ++ encodeBuffer.encodeValue((inputDataSize - 2) >> 1, 32, 3); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, + bigEndian_), clientCache_ -> drawableCache); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 8, +@@ -2424,8 +2478,7 @@ + break; + } + +- encodeBuffer.encodeValue((GetUINT(inputMessage + 2, +- bigEndian_) - 3) >> 1, 16, 4); ++ encodeBuffer.encodeValue((inputDataSize - 2) >> 1, 32, 4); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, + bigEndian_), clientCache_ -> drawableCache); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 8, +@@ -2522,7 +2575,7 @@ + break; + case X_QueryBestSize: + { +- encodeBuffer.encodeValue((unsigned int)inputMessage[1], 2); ++ encodeBuffer.encodeValue((unsigned int)inputDataByte, 2); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, + bigEndian_), clientCache_ -> drawableCache); + encodeBuffer.encodeValue(GetUINT(inputMessage + 8, bigEndian_), 16, 8); +@@ -2538,7 +2591,7 @@ + // Differential encoding. + encodeBuffer.encodeBoolValue(1); + +- unsigned int numColors = ((inputLength - 8) >> 2); ++ unsigned int numColors = (inputDataSize - 1); + encodeBuffer.encodeValue(numColors, 16, 5); + encodeBuffer.encodeCachedValue(GetULONG(inputMessage + 4, bigEndian_), 29, + clientCache_ -> colormapCache); +@@ -2636,7 +2689,7 @@ + break; + } + +- unsigned int numRectangles = ((inputLength - 12) >> 3); ++ unsigned int numRectangles = ((inputDataSize - 2) >> 1); + + if (control -> isProtoStep9() == 1) + { +@@ -2647,7 +2700,7 @@ + encodeBuffer.encodeValue(numRectangles, 13, 4); + } + +- encodeBuffer.encodeValue((unsigned int) inputMessage[1], 2); ++ encodeBuffer.encodeValue((unsigned int) inputDataByte, 2); + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, bigEndian_), + clientCache_ -> gcCache); + encodeBuffer.encodeCachedValue(GetUINT(inputMessage + 8, bigEndian_), 16, +@@ -2802,7 +2855,7 @@ + } + + // Format. +- encodeBuffer.encodeValue((unsigned int) inputMessage[1], 2); ++ encodeBuffer.encodeValue((unsigned int) inputDataByte, 2); + // Drawable. + encodeBuffer.encodeXidValue(GetULONG(inputMessage + 4, + bigEndian_), clientCache_ -> drawableCache); +@@ -3004,7 +3057,7 @@ + << ".\n" << logofs_flush; + #endif + +- encodeBuffer.encodeCachedValue(*(inputMessage + 1), 8, ++ encodeBuffer.encodeCachedValue(inputDataByte, 8, + clientCache_ -> resourceCache); + } + else if (inputOpcode == opcodeStore_ -> freeUnpack) +@@ -3015,7 +3068,7 @@ + << ".\n" << logofs_flush; + #endif + +- encodeBuffer.encodeCachedValue(*(inputMessage + 1), 8, ++ encodeBuffer.encodeCachedValue(inputDataByte, 8, + clientCache_ -> resourceCache); + } + else if (inputOpcode == opcodeStore_ -> getControlParameters) +@@ -3198,10 +3251,10 @@ + { + if (hit) + { +- statistics -> addRenderCachedRequest(*(inputMessage + 1)); ++ statistics -> addRenderCachedRequest(inputDataByte); + } + +- statistics -> addRenderRequestBits(*(inputMessage + 1), inputLength << 3, bits); ++ statistics -> addRenderRequestBits(inputDataByte, inputLength << 3, bits); + } + + } // End if (firstRequest_)... else ... +--- a/nxcomp/ClientReadBuffer.cpp ++++ b/nxcomp/ClientReadBuffer.cpp +@@ -119,15 +119,32 @@ + + dataLength = (GetUINT(start + 2, bigEndian_) << 2); + +- if (dataLength < 4) ++ if (dataLength == 0) // or equivalently (dataLength < 4) + { +- #ifdef TEST +- *logofs << "ClientReadBuffer: WARNING! Assuming length 4 " +- << "for suspicious message of length " << dataLength +- << ".\n" << logofs_flush; +- #endif ++ // BIG-REQUESTS extension ++ if (size < 8) ++ { ++ remaining_ = 8 - size; ++ return 0; ++ } + +- dataLength = 4; ++ dataLength = (GetULONG(start + 4, bigEndian_) << 2); ++ ++ if (dataLength < 8 || dataLength > 1024*1024*1024) ++ { ++ #ifdef WARNING ++ *logofs << "BIG-REQUESTS with unacceptable dataLength=" ++ << dataLength << ", now set to 8.\n" << logofs_flush; ++ #endif ++ dataLength = 8; ++ } ++ else if (dataLength < 4*64*1024) ++ { ++ #ifdef WARNING ++ *logofs << "BIG-REQUESTS with silly dataLength=" ++ << dataLength << ".\n" << logofs_flush; ++ #endif ++ } + } + } + +--- a/nxcomp/ServerChannel.cpp ++++ b/nxcomp/ServerChannel.cpp +@@ -104,7 +104,8 @@ + // + + #define HIDE_MIT_SHM_EXTENSION +-#define HIDE_BIG_REQUESTS_EXTENSION ++// HIDE_BIG_REQUESTS_EXTENSION : No good to hide, some clients may send crap instead... ++#undef HIDE_BIG_REQUESTS_EXTENSION + #define HIDE_XFree86_Bigfont_EXTENSION + #undef HIDE_SHAPE_EXTENSION + #undef HIDE_XKEYBOARD_EXTENSION +@@ -3756,7 +3757,7 @@ + } + + unsigned int numPoints; +- decodeBuffer.decodeValue(numPoints, 16, 4); ++ decodeBuffer.decodeValue(numPoints, 32, 4); + outputLength = (numPoints << 2) + 12; + outputMessage = writeBuffer_.addMessage(outputLength); + unsigned int relativeCoordMode; +@@ -3802,7 +3803,7 @@ + } + + unsigned int numPoints; +- decodeBuffer.decodeValue(numPoints, 16, 4); ++ decodeBuffer.decodeValue(numPoints, 32, 4); + outputLength = (numPoints << 2) + 12; + outputMessage = writeBuffer_.addMessage(outputLength); + unsigned int relativeCoordMode; +@@ -3839,7 +3840,7 @@ + case X_PolyRectangle: + { + unsigned int numRectangles; +- decodeBuffer.decodeValue(numRectangles, 16, 3); ++ decodeBuffer.decodeValue(numRectangles, 32, 3); + outputLength = (numRectangles << 3) + 12; + outputMessage = writeBuffer_.addMessage(outputLength); + decodeBuffer.decodeXidValue(value, clientCache_ -> drawableCache); +@@ -3869,7 +3870,7 @@ + } + + unsigned int numSegments; +- decodeBuffer.decodeValue(numSegments, 16, 4); ++ decodeBuffer.decodeValue(numSegments, 32, 4); + outputLength = (numSegments << 3) + 12; + outputMessage = writeBuffer_.addMessage(outputLength); + decodeBuffer.decodeXidValue(value, clientCache_ -> drawableCache); +@@ -4590,7 +4591,21 @@ + + *outputMessage = (unsigned char) outputOpcode; + +- PutUINT(outputLength >> 2, outputMessage + 2, bigEndian_); ++ if (outputLength < 4*64*1024) ++ PutUINT(outputLength >> 2, outputMessage + 2, bigEndian_); ++ else ++ { ++ // Handle BIG-REQUESTS ++ PutUINT(0, outputMessage + 2, bigEndian_); ++// BUG ALERT: following write may not work well, ++// particularly with un-flushed messages. ++// But, it works well enough in my testing... ++ // Write first four bytes ++ if (transport_ -> write(write_immediate, outputMessage, 4) < 0) ++ return -1; ++ // Replace with new 4-byte length ++ PutULONG(1 + (outputLength >> 2), outputMessage, bigEndian_); ++ } + + #if defined(TEST) || defined(OPCODES) + *logofs << "handleWrite: Handled request OPCODE#" diff --git a/debian/patches/series b/debian/patches/series index cf6eaf30d..e70aa376a 100644 --- a/debian/patches/series +++ b/debian/patches/series @@ -61,6 +61,7 @@ 302_nx-X11_xkbbasedir-detection.full.patch 320_nxagent_configurable-keystrokes.full.patch 400_nxcomp-version.full+lite.patch +401_nxcomp_big-requests.full+lite.patch 600_nx-X11+nxcompext+nxcompshad_unique-libnames.full.patch 601_nx-X11_build-option-changes-to-not-use-bundled-libraries.full.patch 602_nx-X11_initgroups.full.patch |