Date: Sun, 10 Oct 2021 09:24:30 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 156db3557332 - stable/13 - readlinkat(2): allow O_PATH fd Message-ID: <202110100924.19A9OUkN003801@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=156db355733241fc1fd824fd8b1ce9f6f7f5f30a commit 156db355733241fc1fd824fd8b1ce9f6f7f5f30a Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-10-09 05:12:05 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-10-10 09:22:58 +0000 readlinkat(2): allow O_PATH fd PR: 258856 (cherry picked from commit 5fb54d2fc845464ea809e6a1a69380693943cf51) --- lib/libc/sys/open.2 | 5 +++-- sys/kern/vfs_syscalls.c | 4 ++-- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/lib/libc/sys/open.2 b/lib/libc/sys/open.2 index 5a6f161291f6..da42c238a151 100644 --- a/lib/libc/sys/open.2 +++ b/lib/libc/sys/open.2 @@ -28,7 +28,7 @@ .\" @(#)open.2 8.2 (Berkeley) 11/16/93 .\" $FreeBSD$ .\" -.Dd May 6, 2021 +.Dd October 9, 2021 .Dt OPEN 2 .Os .Sh NAME @@ -327,7 +327,7 @@ and others. The other functionality of the returned file descriptor is limited to the descriptor-level operations. It can be used for -.Bl -tag -width SCM_RIGHTS -offset indent -compact +.Bl -tag -width readlinkat(2) -offset indent -compact .It Xr fcntl 2 but advisory locking is not allowed .It Xr dup 2 @@ -346,6 +346,7 @@ message .It Xr kqueue 2 using for .Dv EVFILT_VNODE +.It Xr readlinkat 2 .El But operations like .Xr read 2 , diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 8fae55c2862d..6dc6ca43a774 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -2628,8 +2628,8 @@ kern_readlinkat(struct thread *td, int fd, const char *path, if (count > IOSIZE_MAX) return (EINVAL); - NDINIT_AT(&nd, LOOKUP, NOFOLLOW | LOCKSHARED | LOCKLEAF | AUDITVNODE1, - pathseg, path, fd, td); + NDINIT_AT(&nd, LOOKUP, NOFOLLOW | LOCKSHARED | LOCKLEAF | AUDITVNODE1 | + EMPTYPATH, pathseg, path, fd, td); if ((error = namei(&nd)) != 0) return (error);
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