Age | Commit message (Collapse) | Author |
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And deduplicate the code a little.
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The Open() and Create() paths used different inode numbers,
which broke openfiletable locking against concurred readers.
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world-readable
Make `gocryptfs.diriv` and `gocryptfs.xxx.name` files world-readable to make encrypted backups easier
when mounting via fstab.
Having the files follow chmod/chown of their parent does not seem
to be worth the hassle. The content of the diriv files is not
secret, and both diriv and name files are protected by the
perms of the parent dir.
Fixes https://github.com/rfjakob/gocryptfs/issues/539
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This option is similar to fuse(8) kernel_cache
Verified using vmtouch.
Without -kernel_cache:
$ dd if=/dev/zero of=foo bs=1M count=10 ; vmtouch -t foo ; vmtouch foo
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0,0242321 s, 433 MB/s
Files: 1
Directories: 0
Touched Pages: 2560 (10M)
Elapsed: 0.011159 seconds
Files: 1
Directories: 0
Resident Pages: 0/2560 0/10M 0%
Elapsed: 0.000993 seconds
With -kernel_cache:
$ dd if=/dev/zero of=foo bs=1M count=10 ; vmtouch -t foo ; vmtouch foo
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0,0244015 s, 430 MB/s
Files: 1
Directories: 0
Touched Pages: 2560 (10M)
Elapsed: 0.011564 seconds
Files: 1
Directories: 0
Resident Pages: 2560/2560 10M/10M 100%
Elapsed: 0.000369 seconds
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Rename the symbols and the files.
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Helpful for fsck.
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We used to always open a *File2 and letting the *File2
handle Setattr. This does not work it we cannot open the file!
Before:
$ go test
2020/07/12 20:14:57 writer: Write/Writev failed, err: 2=no such file or directory. opcode: INTERRUPT
2020/07/12 20:14:57 writer: Write/Writev failed, err: 2=no such file or directory. opcode: INTERRUPT
--- FAIL: TestLchown (0.00s)
matrix_test.go:634: lchown /tmp/gocryptfs-test-parent-1026/014500839/default-plain/symlink: too many levels of symbolic links
touch: setting times of '/tmp/gocryptfs-test-parent-1026/014500839/default-plain/utimesnano_symlink': Too many levels of symbolic links
--- FAIL: TestUtimesNanoSymlink (0.00s)
matrix_test.go:655: exit status 1
--- FAIL: TestMkfifo (0.00s)
matrix_test.go:755: file exists
--- FAIL: TestMagicNames (0.00s)
matrix_test.go:773: Testing n="gocryptfs.longname.QhUr5d9FHerwEs--muUs6_80cy6JRp89c1otLwp92Cs"
matrix_test.go:773: Testing n="gocryptfs.diriv"
matrix_test.go:815: open /tmp/gocryptfs-test-parent-1026/014500839/default-plain/linktarget: permission denied
--- FAIL: TestChmod (0.00s)
matrix_test.go:840: chmod 444 -> 000 failed: permission denied
matrix_test.go:840: chmod 444 -> 111 failed: permission denied
matrix_test.go:840: chmod 444 -> 123 failed: permission denied
matrix_test.go:840: chmod 444 -> 321 failed: permission denied
FAIL
exit status 1
FAIL github.com/rfjakob/gocryptfs/tests/matrix 0.790s
After:
$ go test
--- FAIL: TestMkfifo (0.00s)
matrix_test.go:755: file exists
--- FAIL: TestMagicNames (0.00s)
matrix_test.go:773: Testing n="gocryptfs.longname.QhUr5d9FHerwEs--muUs6_80cy6JRp89c1otLwp92Cs"
matrix_test.go:773: Testing n="gocryptfs.diriv"
matrix_test.go:815: open /tmp/gocryptfs-test-parent-1026/501766059/default-plain/linktarget: permission denied
--- FAIL: TestChmod (0.00s)
matrix_test.go:849: modeHave 0644 != modeWant 0
FAIL
exit status 1
FAIL github.com/rfjakob/gocryptfs/tests/matrix 0.787s
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We used to do this
[pid 99182] renameat2(14, "Y_4DAxKvj1QnXmJx2AkrKA", 15, ".", RENAME_NOREPLACE <unfinished ...>
which was not the intention.
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Fortunately, this just means fixing up the function
signatures.
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Instead, use the new toFuseCtx() function introduced
in an earlier commit.
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Compiles, but untested otherwise. No caching.
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Compiles and mounts but does nothing useful.
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