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[process] restrict search to handles that have R or W access

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* Also fix loop overflow
This commit is contained in:
Pete Batard 2017-04-30 21:59:18 +01:00
parent d1927ac1ef
commit 0c76dbf075
9 changed files with 39 additions and 31 deletions
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4
src/.clang/rufus.vcxproj
View file

@ -208,9 +208,9 @@
<ClCompile Include="..\net.c" />
<ClCompile Include="..\parser.c" />
<ClCompile Include="..\pki.c" />
<ClCompile Include="..\process.c" />
<ClCompile Include="..\rufus.c" />
<ClCompile Include="..\checksum.c" />
<ClCompile Include="..\search.c" />
<ClCompile Include="..\smart.c" />
<ClCompile Include="..\stdfn.c" />
<ClCompile Include="..\stdio.c" />
@ -226,7 +226,7 @@
<ClInclude Include="..\format.h" />
<ClInclude Include="..\hdd_vs_ufd.h" />
<ClInclude Include="..\missing.h" />
<ClInclude Include="..\search.h" />
<ClInclude Include="..\process.h" />
<ClInclude Include="..\settings.h" />
<ClInclude Include="..\libcdio\cdio\cdio.h" />
<ClInclude Include="..\libcdio\cdio\iso9660.h" />

4
src/.clang/rufus.vcxproj.filters
View file

@ -75,7 +75,7 @@
<ClCompile Include="..\dev.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\search.c">
<ClCompile Include="..\process.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
@ -146,7 +146,7 @@
<ClInclude Include="..\db.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\search.h">
<ClInclude Include="..\process.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>

4
src/.msvc/rufus.vcxproj
View file

@ -191,9 +191,9 @@
<ClCompile Include="..\net.c" />
<ClCompile Include="..\parser.c" />
<ClCompile Include="..\pki.c" />
<ClCompile Include="..\process.c" />
<ClCompile Include="..\rufus.c" />
<ClCompile Include="..\checksum.c" />
<ClCompile Include="..\search.c" />
<ClCompile Include="..\smart.c" />
<ClCompile Include="..\stdfn.c" />
<ClCompile Include="..\stdio.c" />
@ -209,7 +209,7 @@
<ClInclude Include="..\format.h" />
<ClInclude Include="..\hdd_vs_ufd.h" />
<ClInclude Include="..\missing.h" />
<ClInclude Include="..\search.h" />
<ClInclude Include="..\process.h" />
<ClInclude Include="..\settings.h" />
<ClInclude Include="..\libcdio\cdio\cdio.h" />
<ClInclude Include="..\libcdio\cdio\iso9660.h" />

4
src/.msvc/rufus.vcxproj.filters
View file

@ -75,7 +75,7 @@
<ClCompile Include="..\dev.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\search.c">
<ClCompile Include="..\process.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
@ -146,7 +146,7 @@
<ClInclude Include="..\db.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\search.h">
<ClInclude Include="..\process.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>

2
src/Makefile.am
View file

@ -11,7 +11,7 @@ AM_V_WINDRES = $(AM_V_WINDRES_$(V))
$(AM_V_WINDRES) $(AM_RCFLAGS) -i $< -o $@
rufus_SOURCES = badblocks.c checksum.c dev.c dos.c dos_locale.c drive.c format.c icon.c iso.c localization.c \
net.c parser.c pki.c rufus.c search.c smart.c stdfn.c stdio.c stdlg.c syslinux.c vhd.c
net.c parser.c pki.c process.c rufus.c smart.c stdfn.c stdio.c stdlg.c syslinux.c vhd.c
rufus_CFLAGS = -I./ms-sys/inc -I./syslinux/libfat -I./syslinux/libinstaller -I./syslinux/win -I./libcdio $(AM_CFLAGS)
rufus_LDFLAGS = $(AM_LDFLAGS) -mwindows
rufus_LDADD = rufus_rc.o bled/libbled.a ms-sys/libmssys.a syslinux/libfat/libfat.a syslinux/libinstaller/libinstaller.a syslinux/win/libwin.a \

16
src/Makefile.in
View file

@ -93,7 +93,7 @@ am_rufus_OBJECTS = rufus-badblocks.$(OBJEXT) rufus-checksum.$(OBJEXT) \
rufus-format.$(OBJEXT) rufus-icon.$(OBJEXT) \
rufus-iso.$(OBJEXT) rufus-localization.$(OBJEXT) \
rufus-net.$(OBJEXT) rufus-parser.$(OBJEXT) rufus-pki.$(OBJEXT) \
rufus-rufus.$(OBJEXT) rufus-search.$(OBJEXT) \
rufus-process.$(OBJEXT) rufus-rufus.$(OBJEXT) \
rufus-smart.$(OBJEXT) rufus-stdfn.$(OBJEXT) \
rufus-stdio.$(OBJEXT) rufus-stdlg.$(OBJEXT) \
rufus-syslinux.$(OBJEXT) rufus-vhd.$(OBJEXT)
@ -271,7 +271,7 @@ AM_V_WINDRES_1 = $(WINDRES)
AM_V_WINDRES_ = $(AM_V_WINDRES_$(AM_DEFAULT_VERBOSITY))
AM_V_WINDRES = $(AM_V_WINDRES_$(V))
rufus_SOURCES = badblocks.c checksum.c dev.c dos.c dos_locale.c drive.c format.c icon.c iso.c localization.c \
net.c parser.c pki.c rufus.c search.c smart.c stdfn.c stdio.c stdlg.c syslinux.c vhd.c
net.c parser.c pki.c process.c rufus.c smart.c stdfn.c stdio.c stdlg.c syslinux.c vhd.c
rufus_CFLAGS = -I./ms-sys/inc -I./syslinux/libfat -I./syslinux/libinstaller -I./syslinux/win -I./libcdio $(AM_CFLAGS)
rufus_LDFLAGS = $(AM_LDFLAGS) -mwindows
@ -410,18 +410,18 @@ rufus-pki.o: pki.c
rufus-pki.obj: pki.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-pki.obj `if test -f 'pki.c'; then $(CYGPATH_W) 'pki.c'; else $(CYGPATH_W) '$(srcdir)/pki.c'; fi`
rufus-process.o: process.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-process.o `test -f 'process.c' || echo '$(srcdir)/'`process.c
rufus-process.obj: process.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-process.obj `if test -f 'process.c'; then $(CYGPATH_W) 'process.c'; else $(CYGPATH_W) '$(srcdir)/process.c'; fi`
rufus-rufus.o: rufus.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-rufus.o `test -f 'rufus.c' || echo '$(srcdir)/'`rufus.c
rufus-rufus.obj: rufus.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-rufus.obj `if test -f 'rufus.c'; then $(CYGPATH_W) 'rufus.c'; else $(CYGPATH_W) '$(srcdir)/rufus.c'; fi`
rufus-search.o: search.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-search.o `test -f 'search.c' || echo '$(srcdir)/'`search.c
rufus-search.obj: search.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-search.obj `if test -f 'search.c'; then $(CYGPATH_W) 'search.c'; else $(CYGPATH_W) '$(srcdir)/search.c'; fi`
rufus-smart.o: smart.c
$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(rufus_CFLAGS) $(CFLAGS) -c -o rufus-smart.o `test -f 'smart.c' || echo '$(srcdir)/'`smart.c

24
src/search.c → src/process.c
View file

@ -1,6 +1,6 @@
/*
* Rufus: The Reliable USB Formatting Utility
* Search functionality for handles
* Process search functionality
*
* Modified from Process Hacker:
* https://github.com/processhacker2/processhacker2/
@ -30,7 +30,7 @@
#include <windows.h>
#include "rufus.h"
#include "search.h"
#include "process.h"
#include "missing.h"
#include "msapi_utf8.h"
@ -405,7 +405,8 @@ BOOL SearchProcess(char* HandleName, BOOL bPartialMatch, BOOL bIgnoreSelf)
for (i = 0; ; i++) {
ULONG attempts = 8;
PSYSTEM_HANDLE_TABLE_ENTRY_INFO_EX handleInfo = &handles->Handles[i];
PSYSTEM_HANDLE_TABLE_ENTRY_INFO_EX handleInfo =
(i < handles->NumberOfHandles) ? &handles->Handles[i] : NULL;
if ((dupHandle != NULL) && (processHandle != NtCurrentProcess())) {
pfNtClose(dupHandle);
@ -414,12 +415,14 @@ BOOL SearchProcess(char* HandleName, BOOL bPartialMatch, BOOL bIgnoreSelf)
#ifdef USE_OBJECT_TYPES
// Only look for File objects type
if ((fileObjectTypeIndex >= 0 ) && (handleInfo->ObjectTypeIndex != (USHORT)fileObjectTypeIndex))
if ((fileObjectTypeIndex >= 0 ) && (handleInfo != NULL) &&
(handleInfo->ObjectTypeIndex != (USHORT)fileObjectTypeIndex))
continue;
#endif
// Update the current handle's process PID and compare against last
pid[cur_pid] = handleInfo->UniqueProcessId;
// Note: Be careful about not trying to overflow our list!
pid[cur_pid] = (handleInfo != NULL) ? handleInfo->UniqueProcessId : -1;
if (pid[0] != pid[1]) {
cur_pid = (cur_pid + 1) % 2;
@ -433,13 +436,17 @@ BOOL SearchProcess(char* HandleName, BOOL bPartialMatch, BOOL bIgnoreSelf)
CHECK_FOR_USER_CANCEL;
// Exit loop condition
if (i >= handles->NumberOfHandles)
break;
// Don't bother with processes we can't access
if (handleInfo->UniqueProcessId == last_access_denied_pid)
continue;
// Exit loop condition
if (i >= handles->NumberOfHandles)
break;
// Filter out handles that aren't opened with Read (bit 0) or Write (bit 1) access
if ((handleInfo->GrantedAccess & 0x3) == 0)
continue;
// Open the process to which the handle we are after belongs, if not already opened
if (pid[0] != pid[1]) {
@ -476,6 +483,7 @@ BOOL SearchProcess(char* HandleName, BOOL bPartialMatch, BOOL bIgnoreSelf)
// A loop is needed because the I/O subsystem likes to give us the wrong return lengths...
do {
ULONG returnSize;
// TODO: We might still need a timeout on ObjectName queries, as PH does...
status = pfNtQueryObject(dupHandle, ObjectNameInformation, buffer, bufferSize, &returnSize);
if (status == STATUS_BUFFER_OVERFLOW || status == STATUS_INFO_LENGTH_MISMATCH ||
status == STATUS_BUFFER_TOO_SMALL) {

2
src/search.h → src/process.h
View file

@ -1,6 +1,6 @@
/*
* Rufus: The Reliable USB Formatting Utility
* Search functionality for handles
* Process search functionality
*
* Modified from Process Hacker:
* https://github.com/processhacker2/processhacker2/

10
src/rufus.rc
View file

@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDD_DIALOG DIALOGEX 12, 12, 242, 376
STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_ACCEPTFILES
CAPTION "Rufus 2.15.1097"
CAPTION "Rufus 2.15.1098"
FONT 8, "Segoe UI Symbol", 400, 0, 0x0
BEGIN
LTEXT "Device",IDS_DEVICE_TXT,9,6,200,8
@ -334,8 +334,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 2,15,1097,0
PRODUCTVERSION 2,15,1097,0
FILEVERSION 2,15,1098,0
PRODUCTVERSION 2,15,1098,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -352,13 +352,13 @@ BEGIN
BEGIN
VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "2.15.1097"
VALUE "FileVersion", "2.15.1098"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011-2017 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
VALUE "OriginalFilename", "rufus.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "2.15.1097"
VALUE "ProductVersion", "2.15.1098"
END
END
BLOCK "VarFileInfo"