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path: root/tools/virtiofsd/fuse_lowlevel.h
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2020-02-10virtiofsd: Remove fuse_req_getgroupsDr. David Alan Gilbert
Remove fuse_req_getgroups that's unused in virtiofsd; it came in from libfuse but we don't actually use it. It was called from fuse_getgroups which we previously removed (but had left it's header in). Coverity had complained about null termination in it, but removing it is the easiest answer. Fixes: Coverity CID: 1413117 (String not null terminated) Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-23virtiofsd: print log only when priority is high enoughEryu Guan
Introduce "-o log_level=" command line option to specify current log level (priority), valid values are "debug info warn err", e.g. ./virtiofsd -o log_level=debug ... So only log priority higher than "debug" will be printed to stderr/syslog. And the default level is info. The "-o debug"/"-d" options are kept, and imply debug log level. Signed-off-by: Eryu Guan <eguan@linux.alibaba.com> dgilbert: Reworked for libfuse's log_func Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> with fix by: Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: add --syslog command-line optionStefan Hajnoczi
Sometimes collecting output from stderr is inconvenient or does not fit within the overall logging architecture. Add syslog(3) support for cases where stderr cannot be used. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> dgilbert: Reworked as a logging function Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: add --print-capabilities optionStefan Hajnoczi
Add the --print-capabilities option as per vhost-user.rst "Backend programs conventions". Currently there are no advertised features. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: Start wiring up vhost-userDr. David Alan Gilbert
Listen on our unix socket for the connection from QEMU, when we get it initialise vhost-user and dive into our own loop variant (currently dummy). Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: Remove unused enum fuse_buf_copy_flagsXiao Yang
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: remove unused notify reply supportStefan Hajnoczi
Notify reply support is unused by virtiofsd. The code would need to be updated to validate input buffer sizes. Remove this unused code since changes to it are untestable. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: remove mountpoint dummy argumentStefan Hajnoczi
Classic FUSE file system daemons take a mountpoint argument but virtiofsd exposes a vhost-user UNIX domain socket instead. The mountpoint argument is not used by virtiofsd but the user is still required to pass a dummy argument on the command-line. Remove the mountpoint argument to clean up the command-line. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: Format imported files to qemu styleDr. David Alan Gilbert
Mostly using a set like: indent -nut -i 4 -nlp -br -cs -ce --no-space-after-function-call-names file clang-format -style=file -i -- file clang-tidy -fix-errors -checks=readability-braces-around-statements file clang-format -style=file -i -- file With manual cleanups. The .clang-format used is below. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed by: Aleksandar Markovic <amarkovic@wavecomp.com> Language: Cpp AlignAfterOpenBracket: Align AlignConsecutiveAssignments: false # although we like it, it creates churn AlignConsecutiveDeclarations: false AlignEscapedNewlinesLeft: true AlignOperands: true AlignTrailingComments: false # churn AllowAllParametersOfDeclarationOnNextLine: true AllowShortBlocksOnASingleLine: false AllowShortCaseLabelsOnASingleLine: false AllowShortFunctionsOnASingleLine: None AllowShortIfStatementsOnASingleLine: false AllowShortLoopsOnASingleLine: false AlwaysBreakAfterReturnType: None # AlwaysBreakAfterDefinitionReturnType is taken into account AlwaysBreakBeforeMultilineStrings: false BinPackArguments: true BinPackParameters: true BraceWrapping: AfterControlStatement: false AfterEnum: false AfterFunction: true AfterStruct: false AfterUnion: false BeforeElse: false IndentBraces: false BreakBeforeBinaryOperators: None BreakBeforeBraces: Custom BreakBeforeTernaryOperators: false BreakStringLiterals: true ColumnLimit: 80 ContinuationIndentWidth: 4 Cpp11BracedListStyle: false DerivePointerAlignment: false DisableFormat: false ForEachMacros: [ 'CPU_FOREACH', 'CPU_FOREACH_REVERSE', 'CPU_FOREACH_SAFE', 'IOMMU_NOTIFIER_FOREACH', 'QLIST_FOREACH', 'QLIST_FOREACH_ENTRY', 'QLIST_FOREACH_RCU', 'QLIST_FOREACH_SAFE', 'QLIST_FOREACH_SAFE_RCU', 'QSIMPLEQ_FOREACH', 'QSIMPLEQ_FOREACH_SAFE', 'QSLIST_FOREACH', 'QSLIST_FOREACH_SAFE', 'QTAILQ_FOREACH', 'QTAILQ_FOREACH_REVERSE', 'QTAILQ_FOREACH_SAFE', 'QTAILQ_RAW_FOREACH', 'RAMBLOCK_FOREACH' ] IncludeCategories: - Regex: '^"qemu/osdep.h' Priority: -3 - Regex: '^"(block|chardev|crypto|disas|exec|fpu|hw|io|libdecnumber|migration|monitor|net|qapi|qemu|qom|standard-headers|sysemu|ui)/' Priority: -2 - Regex: '^"(elf.h|qemu-common.h|glib-compat.h|qemu-io.h|trace-tcg.h)' Priority: -1 - Regex: '.*' Priority: 1 IncludeIsMainRegex: '$' IndentCaseLabels: false IndentWidth: 4 IndentWrappedFunctionNames: false KeepEmptyLinesAtTheStartOfBlocks: false MacroBlockBegin: '.*_BEGIN$' # only PREC_BEGIN ? MacroBlockEnd: '.*_END$' MaxEmptyLinesToKeep: 2 PointerAlignment: Right ReflowComments: true SortIncludes: true SpaceAfterCStyleCast: false SpaceBeforeAssignmentOperators: true SpaceBeforeParens: ControlStatements SpaceInEmptyParentheses: false SpacesBeforeTrailingComments: 1 SpacesInContainerLiterals: true SpacesInParentheses: false SpacesInSquareBrackets: false Standard: Auto UseTab: Never ... Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: Trim down imported filesDr. David Alan Gilbert
There's a lot of the original fuse code we don't need; trim them down. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> with additional trimming by: Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Xiao Yang <yangx.jy@cn.fujitsu.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23virtiofsd: Pull in upstream headersDr. David Alan Gilbert
Pull in headers fromlibfuse's upstream fuse-3.8.0 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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