ea7caaa306
This reverts commit 2b6da462a1.
Note that this change was reworked completely after being cherry-picked
to 13-5.10, so revert this, then re-cherry-pick the version from 13-5.10
Bug: 202785178
Test: None (test with new version)
Change-Id: Idbf470e93a56e2fe5f1fda164635f6f171c2d2fb
Signed-off-by: Paul Lawrence <paullawrence@google.com>
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause WITH Linux-syscall-note */
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/* Copyright (c) 2022 Google LLC */
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#ifndef _LINUX_ANDROID_FUSE_H
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#define _LINUX_ANDROID_FUSE_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#else
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#include <stdint.h>
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#endif
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#define FUSE_ACTION_KEEP 0
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#define FUSE_ACTION_REMOVE 1
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#define FUSE_ACTION_REPLACE 2
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struct fuse_entry_bpf_out {
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uint64_t backing_action;
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uint64_t backing_fd;
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uint64_t bpf_action;
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uint64_t bpf_fd;
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};
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struct fuse_entry_bpf {
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struct fuse_entry_bpf_out out;
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struct file *backing_file;
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struct file *bpf_file;
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};
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struct fuse_read_out {
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uint64_t offset;
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uint32_t again;
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uint32_t padding;
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};
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struct fuse_in_postfilter_header {
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uint32_t len;
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uint32_t opcode;
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uint64_t unique;
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uint64_t nodeid;
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uint32_t uid;
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uint32_t gid;
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uint32_t pid;
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uint32_t error_in;
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};
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/*
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* Fuse BPF Args
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*
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* Used to communicate with bpf programs to allow checking or altering certain values.
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* The end_offset allows the bpf verifier to check boundaries statically. This reflects
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* the ends of the buffer. size shows the length that was actually used.
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*
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*/
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/** One input argument of a request */
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struct fuse_bpf_in_arg {
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uint32_t size;
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const void *value;
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const void *end_offset;
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};
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/** One output argument of a request */
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struct fuse_bpf_arg {
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uint32_t size;
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void *value;
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void *end_offset;
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};
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#define FUSE_MAX_IN_ARGS 5
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#define FUSE_MAX_OUT_ARGS 3
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#define FUSE_BPF_FORCE (1 << 0)
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#define FUSE_BPF_OUT_ARGVAR (1 << 6)
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struct fuse_bpf_args {
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uint64_t nodeid;
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uint32_t opcode;
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uint32_t error_in;
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uint32_t in_numargs;
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uint32_t out_numargs;
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uint32_t flags;
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struct fuse_bpf_in_arg in_args[FUSE_MAX_IN_ARGS];
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struct fuse_bpf_arg out_args[FUSE_MAX_OUT_ARGS];
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};
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#define FUSE_BPF_USER_FILTER 1
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#define FUSE_BPF_BACKING 2
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#define FUSE_BPF_POST_FILTER 4
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#define FUSE_OPCODE_FILTER 0x0ffff
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#define FUSE_PREFILTER 0x10000
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#define FUSE_POSTFILTER 0x20000
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struct bpf_prog *fuse_get_bpf_prog(struct file *file);
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#endif /* _LINUX_ANDROID_FUSE_H */
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