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path: root/runsc/fsgofer/fsgofer_test.go
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2020-08-19Move boot.Config to its own packageFabricio Voznika
Updates #3494 PiperOrigin-RevId: 327548511
2020-08-19Remove path walk from localFile.MknodFabricio Voznika
Replace mknod call with mknodat equivalent to protect against symlink attacks. Also added Mknod tests. Remove goferfs reliance on gofer to check for file existence before creating a synthetic entry. Updates #2923 PiperOrigin-RevId: 327544516
2020-08-18Return EROFS if mount is read-onlyFabricio Voznika
PiperOrigin-RevId: 327300635
2020-07-24Reduce walk and open cost in fsgoferFabricio Voznika
Implement WalkGetAttr() to reuse the stat that is already needed for Walk(). In addition, cache file QID, so it doesn't need to stat the file to compute it. open(2) time improved by 10%: Baseline: 6780 ns Change: 6083 ns Also fixed file type which was not being set in all places. PiperOrigin-RevId: 323102560
2020-07-23Fix fsgofer Open() when control file is using O_PATHFabricio Voznika
Open tries to reuse the control file to save syscalls and file descriptors when opening a file. However, when the control file was opened using O_PATH (e.g. no file permission to open readonly), Open() would not check for it. PiperOrigin-RevId: 322821729
2019-09-26Disallow opening of sockets if --fsgofer-host-uds=falseFabricio Voznika
Updates #235 PiperOrigin-RevId: 271475319
2019-08-26fsgofer_test.go: a socket file path can't be longer than UNIX_MAX_PATH (108)Andrei Vagin
PiperOrigin-RevId: 265478578
2019-08-13Fix file mode check in fsgofer AttachFabricio Voznika
PiperOrigin-RevId: 263189654
2019-06-24fsgopher: reopen files via /proc/self/fdAndrei Vagin
When we reopen file by path, we can't be sure that we will open exactly the same file. The file can be deleted and another one with the same name can be created. PiperOrigin-RevId: 254898594
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
Based on the guidelines at https://opensource.google.com/docs/releasing/authors/. 1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./' 2. Manual fixup of "Google Inc" references. 3. Add AUTHORS file. Authors may request to be added to this file. 4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS. Fixes #209 PiperOrigin-RevId: 245823212 Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-01Automated rollback of changelist 240657604Fabricio Voznika
PiperOrigin-RevId: 241434161 Change-Id: I9ec734e50cef5b39203e8bf37de2d91d24943f1e
2018-11-01Use spec with clean paths for goferFabricio Voznika
Otherwise the gofer's attach point may be different from sandbox when there symlinks in the path. PiperOrigin-RevId: 219730492 Change-Id: Ia9c4c2d16228c6a1a9e790e0cb673fd881003fe1
2018-10-31Make lazy open the mode of operation for fsgoferFabricio Voznika
With recent changes to 9P server, path walks are now safe inside open, create, rename and setattr calls. To simplify the code, remove the lazyopen=false mode that was used for bind mounts, and converge all mounts to using lazy open. PiperOrigin-RevId: 219508628 Change-Id: I073e7e1e2e9a9972d150eaf4cb29e553997a9b76
2018-10-23Track paths and provide a rename hook.Adin Scannell
This change also adds extensive testing to the p9 package via mocks. The sanity checks and type checks are moved from the gofer into the core package, where they can be more easily validated. PiperOrigin-RevId: 218296768 Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-09-07Add additional sanity checks for walk.Adin Scannell
PiperOrigin-RevId: 212058684 Change-Id: I319709b9ffcfccb3231bac98df345d2a20eca24b
2018-08-24Add option to panic gofer if writes are attempted over RO mountsFabricio Voznika
This is used when '--overlay=true' to guarantee writes are not sent to gofer. PiperOrigin-RevId: 210116288 Change-Id: I7616008c4c0e8d3668e07a205207f46e2144bf30
2018-06-04Make fsgofer attach more strictFabricio Voznika
Refuse to mount paths with "." and ".." in the path to prevent a compromised Sentry to mount "../../secrets". Only allow Attach to be called once per mount point. PiperOrigin-RevId: 199225929 Change-Id: I2a3eb7ea0b23f22eb8dde2e383e32563ec003bd5
2018-05-10Open file as read-write when mount points to a fileFabricio Voznika
This is to allow files mapped directly, like /etc/hosts, to be writable. Closes #40 PiperOrigin-RevId: 196155920 Change-Id: Id2027e421cef5f94a0951c3e18b398a77c285bbd
2018-05-04Run gofmt -s on everythingIan Gudger
PiperOrigin-RevId: 195469901 Change-Id: I66d5c7a334bbb8b47e40d266a2661291c2d91c7f
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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