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-rw-r--r--include/linux/filter.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 425056c..276932d 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -688,6 +688,8 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err);
void bpf_prog_free(struct bpf_prog *fp);
+bool bpf_opcode_in_insntable(u8 code);
+
struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags);
struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
gfp_t gfp_extra_flags);
@@ -1003,10 +1005,20 @@ struct bpf_sock_ops_kern {
struct sock *sk;
u32 op;
union {
+ u32 args[4];
u32 reply;
u32 replylong[4];
};
u32 is_fullsock;
+ u64 temp; /* temp and everything after is not
+ * initialized to 0 before calling
+ * the BPF program. New fields that
+ * should be initialized to 0 should
+ * be inserted before temp.
+ * temp is scratch storage used by
+ * sock_ops_convert_ctx_access
+ * as temporary storage of a register.
+ */
};
#endif /* __LINUX_FILTER_H__ */
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