1 /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ 2 /* Copyright (c) 2021 Facebook */ 3 #ifndef __BPF_GEN_INTERNAL_H 4 #define __BPF_GEN_INTERNAL_H 5 6 #include "bpf.h" 7 8 struct ksym_relo_desc { 9 const char *name; 10 int kind; 11 int insn_idx; 12 bool is_weak; 13 bool is_typeless; 14 }; 15 16 struct ksym_desc { 17 const char *name; 18 int ref; 19 int kind; 20 union { 21 /* used for kfunc */ 22 int off; 23 /* used for typeless ksym */ 24 bool typeless; 25 }; 26 int insn; 27 }; 28 29 struct bpf_gen { 30 struct gen_loader_opts *opts; 31 void *data_start; 32 void *data_cur; 33 void *insn_start; 34 void *insn_cur; 35 ssize_t cleanup_label; 36 __u32 nr_progs; 37 __u32 nr_maps; 38 int log_level; 39 int error; 40 struct ksym_relo_desc *relos; 41 int relo_cnt; 42 struct bpf_core_relo *core_relos; 43 int core_relo_cnt; 44 char attach_target[128]; 45 int attach_kind; 46 struct ksym_desc *ksyms; 47 __u32 nr_ksyms; 48 int fd_array; 49 int nr_fd_array; 50 }; 51 52 void bpf_gen__init(struct bpf_gen *gen, int log_level, int nr_progs, int nr_maps); 53 int bpf_gen__finish(struct bpf_gen *gen, int nr_progs, int nr_maps); 54 void bpf_gen__free(struct bpf_gen *gen); 55 void bpf_gen__load_btf(struct bpf_gen *gen, const void *raw_data, __u32 raw_size); 56 void bpf_gen__map_create(struct bpf_gen *gen, 57 enum bpf_map_type map_type, const char *map_name, 58 __u32 key_size, __u32 value_size, __u32 max_entries, 59 struct bpf_map_create_opts *map_attr, int map_idx); 60 void bpf_gen__prog_load(struct bpf_gen *gen, 61 enum bpf_prog_type prog_type, const char *prog_name, 62 const char *license, struct bpf_insn *insns, size_t insn_cnt, 63 struct bpf_prog_load_opts *load_attr, int prog_idx); 64 void bpf_gen__map_update_elem(struct bpf_gen *gen, int map_idx, void *value, __u32 value_size); 65 void bpf_gen__map_freeze(struct bpf_gen *gen, int map_idx); 66 void bpf_gen__record_attach_target(struct bpf_gen *gen, const char *name, enum bpf_attach_type type); 67 void bpf_gen__record_extern(struct bpf_gen *gen, const char *name, bool is_weak, 68 bool is_typeless, int kind, int insn_idx); 69 void bpf_gen__record_relo_core(struct bpf_gen *gen, const struct bpf_core_relo *core_relo); 70 void bpf_gen__populate_outer_map(struct bpf_gen *gen, int outer_map_idx, int key, int inner_map_idx); 71 72 #endif 73