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Diffusion FreeBSD src repository - subversion rS339748

Implement O_BENEATH and AT_BENEATH.
rS339748
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Description

Implement O_BENEATH and AT_BENEATH.

Flags prevent open(2) and *at(2) vfs syscalls name lookup from
escaping the starting directory. Supposedly the interface is similar
to the same proposed Linux flags.

Reviewed by: jilles (code, previous version of manpages), 0mp (manpages)
Discussed with: allanjude, emaste, jonathan
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D17547

Details

Provenance
kibAuthored on
Reviewer
jilles
Differential Revision
D17547: Implement O_BENEATH and AT_BENEATH
Parents
rS339747: Minor style fixes around script execution.
Branches
Unknown
Tags
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Changes (20)

PathSize
head/
lib/
libc/
sys/
sys/
cddl/
compat/
opensolaris/
sys/
compat/
cloudabi/
linux/
kern/
sys/
ufs/
ffs/

rS339748

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head/lib/libc/sys/access.2

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head/lib/libc/sys/chflags.2

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head/lib/libc/sys/chmod.2

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head/lib/libc/sys/chown.2

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head/lib/libc/sys/link.2

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head/lib/libc/sys/open.2

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head/lib/libc/sys/stat.2

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head/lib/libc/sys/unlink.2

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head/lib/libc/sys/utimensat.2

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head/sys/cddl/compat/opensolaris/sys/vnode.h

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head/sys/compat/cloudabi/cloudabi_file.c

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head/sys/compat/linux/linux_file.c

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head/sys/kern/vfs_lookup.c

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head/sys/kern/vfs_mountroot.c

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head/sys/kern/vfs_syscalls.c

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head/sys/kern/vfs_vnops.c

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head/sys/sys/fcntl.h

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head/sys/sys/namei.h

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head/sys/sys/syscallsubr.h

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head/sys/ufs/ffs/ffs_alloc.c

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