diff options
Diffstat (limited to 'sys/linux')
| -rw-r--r-- | sys/linux/bpf.txt | 42 | ||||
| -rw-r--r-- | sys/linux/bpf.txt.const | 1 |
2 files changed, 43 insertions, 0 deletions
diff --git a/sys/linux/bpf.txt b/sys/linux/bpf.txt index f191d4a5d..52a6575cd 100644 --- a/sys/linux/bpf.txt +++ b/sys/linux/bpf.txt @@ -359,6 +359,7 @@ bpf_insn [ map_idx_val bpf_insn_map_idx_value btf_id bpf_insn_btf_id cb_func bpf_insn_cb_func + printk bpf_insn_trace_printk ] [varlen] bpf_insn_generic { @@ -380,6 +381,7 @@ type bpf_insn_ldst_t[CLASS_TYPE, CLASS, SZ_TYPE, SZ, MODE_TYPE, MODE, DST, SRC, } type bpf_insn_ldst bpf_insn_ldst_t[flags, bpf_ldst_insn, flags, bpf_ldst_size, flags, bpf_ldst_mode, flags[bpf_reg, int8:4], flags[bpf_reg, int8:4], flags[bpf_insn_offsets, int16], flags[bpf_insn_immediates, int32]] +type bpf_insn_st64_reg[SRC, DST, OFF] bpf_insn_ldst_t[const, BPF_STX, const, BPF_DW0, const, BPF_MEM0, const[DST, int8:4], const[SRC, int8:4], const[OFF, int16], const[0, int32]] bpf_ldst_insn = BPF_LD, BPF_LDX, BPF_ST, BPF_STX bpf_ldst_size = BPF_W0, BPF_H0, BPF_B0, BPF_DW0 @@ -407,6 +409,10 @@ type bpf_insn_alu_t[CLASS_TYPE, CLASS, SOURCE_TYPE, SOURCE, OP_TYPE, OP, DST, SR } type bpf_insn_alu bpf_insn_alu_t[flags, bpf_alu_insn, flags, bpf_alu_source, flags, bpf_alu_op, flags[bpf_reg, int8:4], flags[bpf_reg, int8:4], flags[bpf_insn_offsets, int16], flags[bpf_insn_immediates, int32]] +type bpf_insn_mov_imm[DST, IMM] bpf_insn_alu_t[const, BPF_ALU64, const, BPF_K0, const, BPF_MOV0, const[DST, int8:4], const[0, int8:4], const[0, int16], const[IMM, int32]] +type bpf_insn_mov_imm_any[DST] bpf_insn_alu_t[const, BPF_ALU64, const, BPF_K0, const, BPF_MOV0, const[DST, int8:4], const[0, int8:4], const[0, int16], int32] +type bpf_insn_mov_reg[SRC, DST] bpf_insn_alu_t[const, BPF_ALU64, const, BPF_X0, const, BPF_MOV0, const[DST, int8:4], const[SRC, int8:4], const[0, int16], const[0, int32]] +type bpf_insn_op_imm[DST, OP, IMM] bpf_insn_alu_t[const, BPF_ALU64, const, BPF_K0, const, OP, const[DST, int8:4], const[0, int8:4], const[0, int16], const[IMM, int32]] bpf_alu_source = BPF_K0, BPF_X0 bpf_alu_insn = BPF_ALU, BPF_ALU64 @@ -506,6 +512,18 @@ bpf_insn_init_r0 { imm2 int32 } +type bpf_insn_mov_imm64[DST, IMM1, IMM2] { + code const[bpf_insn_load_imm_dw, int8] + dst const[DST, int8:4] + src const[0, int8:4] + off const[0, int16] + imm const[IMM1, int32] + code2 const[0, int8] + regs2 const[0, int8] + off2 const[0, int16] + imm2 const[IMM2, int32] +} + bpf_insn_map_fd { code const[bpf_insn_load_imm_dw, int8] dst flags[bpf_reg, int8:4] @@ -588,6 +606,30 @@ bpf_insn_offsets = 0, 1, 2, 4, 6, 8, 12, 16, 24, 32, 48, 64, 80, 128, 256, -1, - bpf_insn_immediates = 0, 1, 4, 8, 16, -1, -4, -16 bpf_reg = BPF_REG_0, BPF_REG_1, BPF_REG_2, BPF_REG_3, BPF_REG_4, BPF_REG_5, BPF_REG_6, BPF_REG_7, BPF_REG_8, BPF_REG_9, BPF_REG_10, __MAX_BPF_REG +type bpf_insn_mov_printk_str_hex[DST] [ +# "%d " + integer bpf_insn_mov_imm64[DST, 0x25702020, 0x20202000] +# "%p " + pointer bpf_insn_mov_imm64[DST, 0x25642020, 0x20202000] +] + +# (18) r1 = "%d " +# (7b) *(u64 *)(r10 -8) = r1 +# (bf) r1 = r10 +# (07) r1 += -8 +# (b7) r2 = 8 +# (b7) r3 = X +# (85) call bpf_trace_printk#-108352 +bpf_insn_trace_printk { + insn1 bpf_insn_mov_printk_str_hex[BPF_REG_1] + insn2 bpf_insn_st64_reg[BPF_REG_1, BPF_REG_10, -8] + insn3 bpf_insn_mov_reg[BPF_REG_10, BPF_REG_1] + insn4 bpf_insn_op_imm[BPF_REG_1, BPF_ADD0, -8] + insn5 bpf_insn_mov_imm[BPF_REG_2, 8] + insn6 bpf_insn_mov_imm_any[BPF_REG_3] + insn7 bpf_insn_call_helper_t[const[BPF_FUNC_trace_printk, int32]] +} + define MAX_BPF_REG __MAX_BPF_REG bpf_obj_pin_map [ diff --git a/sys/linux/bpf.txt.const b/sys/linux/bpf.txt.const index c3ccf7bfe..e6eff547d 100644 --- a/sys/linux/bpf.txt.const +++ b/sys/linux/bpf.txt.const @@ -61,6 +61,7 @@ BPF_EXIST = 2 BPF_EXIT0 = 9 BPF_FLOW_DISSECTOR = 17 BPF_FUNC_INFO_SIZE = 8 +BPF_FUNC_trace_printk = 6 BPF_F_AFTER = 16 BPF_F_ALLOW_MULTI = 2 BPF_F_ALLOW_OVERRIDE = 1 |