153 lines
5.8 KiB
Diff
153 lines
5.8 KiB
Diff
From 3b6093fd43682ebab7a2d187e4e847068d6ce454 Mon Sep 17 00:00:00 2001
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From: Andrii Nakryiko <andrii@kernel.org>
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Date: Wed, 16 Nov 2022 10:19:07 -0800
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Subject: [PATCH] sync: start syncing include/uapi/linux/fcntl.h UAPI header
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Libbpf relies on F_DUPFD_CLOEXEC constant coming from fcntl.h UAPI
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header, so we need to sync it along other UAPI headers. Also update sync
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script to keep doing this automatically going forward.
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Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
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---
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include/uapi/linux/fcntl.h | 114 +++++++++++++++++++++++++++++++++++++
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scripts/sync-kernel.sh | 1 +
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2 files changed, 115 insertions(+)
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create mode 100644 include/uapi/linux/fcntl.h
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diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h
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new file mode 100644
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index 0000000..2f86b2a
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--- /dev/null
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+++ b/include/uapi/linux/fcntl.h
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@@ -0,0 +1,114 @@
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+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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+#ifndef _UAPI_LINUX_FCNTL_H
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+#define _UAPI_LINUX_FCNTL_H
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+
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+#include <asm/fcntl.h>
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+#include <linux/openat2.h>
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+
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+#define F_SETLEASE (F_LINUX_SPECIFIC_BASE + 0)
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+#define F_GETLEASE (F_LINUX_SPECIFIC_BASE + 1)
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+
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+/*
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+ * Cancel a blocking posix lock; internal use only until we expose an
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+ * asynchronous lock api to userspace:
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+ */
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+#define F_CANCELLK (F_LINUX_SPECIFIC_BASE + 5)
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+
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+/* Create a file descriptor with FD_CLOEXEC set. */
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+#define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
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+
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+/*
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+ * Request nofications on a directory.
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+ * See below for events that may be notified.
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+ */
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+#define F_NOTIFY (F_LINUX_SPECIFIC_BASE+2)
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+
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+/*
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+ * Set and get of pipe page size array
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+ */
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+#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
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+#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
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+
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+/*
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+ * Set/Get seals
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+ */
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+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
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+#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
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+
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+/*
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+ * Types of seals
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+ */
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+#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
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+#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
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+#define F_SEAL_GROW 0x0004 /* prevent file from growing */
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+#define F_SEAL_WRITE 0x0008 /* prevent writes */
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+#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
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+/* (1U << 31) is reserved for signed error codes */
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+
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+/*
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+ * Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
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+ * underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
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+ * the specific file.
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+ */
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+#define F_GET_RW_HINT (F_LINUX_SPECIFIC_BASE + 11)
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+#define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12)
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+#define F_GET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 13)
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+#define F_SET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 14)
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+
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+/*
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+ * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
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+ * used to clear any hints previously set.
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+ */
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+#define RWH_WRITE_LIFE_NOT_SET 0
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+#define RWH_WRITE_LIFE_NONE 1
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+#define RWH_WRITE_LIFE_SHORT 2
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+#define RWH_WRITE_LIFE_MEDIUM 3
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+#define RWH_WRITE_LIFE_LONG 4
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+#define RWH_WRITE_LIFE_EXTREME 5
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+
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+/*
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+ * The originally introduced spelling is remained from the first
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+ * versions of the patch set that introduced the feature, see commit
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+ * v4.13-rc1~212^2~51.
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+ */
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+#define RWF_WRITE_LIFE_NOT_SET RWH_WRITE_LIFE_NOT_SET
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+
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+/*
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+ * Types of directory notifications that may be requested.
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+ */
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+#define DN_ACCESS 0x00000001 /* File accessed */
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+#define DN_MODIFY 0x00000002 /* File modified */
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+#define DN_CREATE 0x00000004 /* File created */
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+#define DN_DELETE 0x00000008 /* File removed */
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+#define DN_RENAME 0x00000010 /* File renamed */
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+#define DN_ATTRIB 0x00000020 /* File changed attibutes */
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+#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */
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+
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+/*
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+ * The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EACCESS is
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+ * meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to
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+ * unlinkat. The two functions do completely different things and therefore,
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+ * the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to
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+ * faccessat would be undefined behavior and thus treating it equivalent to
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+ * AT_EACCESS is valid undefined behavior.
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+ */
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+#define AT_FDCWD -100 /* Special value used to indicate
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+ openat should use the current
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+ working directory. */
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+#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
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+#define AT_EACCESS 0x200 /* Test access permitted for
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+ effective IDs, not real IDs. */
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+#define AT_REMOVEDIR 0x200 /* Remove directory instead of
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+ unlinking file. */
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+#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
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+#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
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+#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
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+
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+#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
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+#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
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+#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
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+#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
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+
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+#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
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+
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+#endif /* _UAPI_LINUX_FCNTL_H */
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diff --git a/scripts/sync-kernel.sh b/scripts/sync-kernel.sh
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index 3468e71..b33f19f 100755
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--- a/scripts/sync-kernel.sh
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+++ b/scripts/sync-kernel.sh
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@@ -42,6 +42,7 @@ PATH_MAP=( \
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[tools/include/uapi/linux/bpf_common.h]=include/uapi/linux/bpf_common.h \
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[tools/include/uapi/linux/bpf.h]=include/uapi/linux/bpf.h \
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[tools/include/uapi/linux/btf.h]=include/uapi/linux/btf.h \
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+ [tools/include/uapi/linux/fcntl.h]=include/uapi/linux/fcntl.h \
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[tools/include/uapi/linux/if_link.h]=include/uapi/linux/if_link.h \
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[tools/include/uapi/linux/if_xdp.h]=include/uapi/linux/if_xdp.h \
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[tools/include/uapi/linux/netlink.h]=include/uapi/linux/netlink.h \
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--
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2.33.0
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