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[RFC,v3,27/37] fuse-bpf: Add fuse-bpf constants

Message ID 20230418014037.2412394-28-drosen@google.com (mailing list archive)
State Mainlined, archived
Headers show
Series FUSE BPF: A Stacked Filesystem Extension for FUSE | expand

Commit Message

Daniel Rosenberg April 18, 2023, 1:40 a.m. UTC 
This adds constants that fuse_op programs will rely on for communicating
what action fuse should take next.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 include/uapi/linux/bpf.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 4b20a7269bee..6521c40875c7 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -7155,4 +7155,16 @@  struct bpf_iter_num {
 	__u64 __opaque[1];
 } __attribute__((aligned(8)));
 
+/* Return Codes for Fuse BPF struct_op programs */
+#define BPF_FUSE_CONTINUE		0
+#define BPF_FUSE_USER			1
+#define BPF_FUSE_USER_PREFILTER		2
+#define BPF_FUSE_POSTFILTER		3
+#define BPF_FUSE_USER_POSTFILTER	4
+
+/* Op Code Filter values for BPF Programs */
+#define FUSE_OPCODE_FILTER	0x0ffff
+#define FUSE_PREFILTER		0x10000
+#define FUSE_POSTFILTER		0x20000
+
 #endif /* _UAPI__LINUX_BPF_H__ */