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-rw-r--r--include/linux/bpf.h36
1 files changed, 34 insertions, 2 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index d5cda067115a..4383476a0d48 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -105,7 +105,8 @@ struct bpf_verifier_ops {
*/
bool (*is_valid_access)(int off, int size, enum bpf_access_type type);
- u32 (*convert_ctx_access)(int dst_reg, int src_reg, int ctx_off,
+ u32 (*convert_ctx_access)(enum bpf_access_type type, int dst_reg,
+ int src_reg, int ctx_off,
struct bpf_insn *insn);
};
@@ -123,15 +124,41 @@ struct bpf_prog_aux {
const struct bpf_verifier_ops *ops;
struct bpf_map **used_maps;
struct bpf_prog *prog;
- struct work_struct work;
+ union {
+ struct work_struct work;
+ struct rcu_head rcu;
+ };
};
+struct bpf_array {
+ struct bpf_map map;
+ u32 elem_size;
+ /* 'ownership' of prog_array is claimed by the first program that
+ * is going to use this map or by the first program which FD is stored
+ * in the map to make sure that all callers and callees have the same
+ * prog_type and JITed flag
+ */
+ enum bpf_prog_type owner_prog_type;
+ bool owner_jited;
+ union {
+ char value[0] __aligned(8);
+ struct bpf_prog *prog[0] __aligned(8);
+ };
+};
+#define MAX_TAIL_CALL_CNT 32
+
+u64 bpf_tail_call(u64 ctx, u64 r2, u64 index, u64 r4, u64 r5);
+void bpf_prog_array_map_clear(struct bpf_map *map);
+bool bpf_prog_array_compatible(struct bpf_array *array, const struct bpf_prog *fp);
+const struct bpf_func_proto *bpf_get_trace_printk_proto(void);
+
#ifdef CONFIG_BPF_SYSCALL
void bpf_register_prog_type(struct bpf_prog_type_list *tl);
void bpf_register_map_type(struct bpf_map_type_list *tl);
struct bpf_prog *bpf_prog_get(u32 ufd);
void bpf_prog_put(struct bpf_prog *prog);
+void bpf_prog_put_rcu(struct bpf_prog *prog);
struct bpf_map *bpf_map_get(struct fd f);
void bpf_map_put(struct bpf_map *map);
@@ -160,5 +187,10 @@ extern const struct bpf_func_proto bpf_map_delete_elem_proto;
extern const struct bpf_func_proto bpf_get_prandom_u32_proto;
extern const struct bpf_func_proto bpf_get_smp_processor_id_proto;
+extern const struct bpf_func_proto bpf_tail_call_proto;
+extern const struct bpf_func_proto bpf_ktime_get_ns_proto;
+extern const struct bpf_func_proto bpf_get_current_pid_tgid_proto;
+extern const struct bpf_func_proto bpf_get_current_uid_gid_proto;
+extern const struct bpf_func_proto bpf_get_current_comm_proto;
#endif /* _LINUX_BPF_H */