| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jakub Kiciński | 6226 | 92.40% | 2 | 10.53% |
| Alexei Starovoitov | 287 | 4.26% | 2 | 10.53% |
| Daniel Borkmann | 126 | 1.87% | 10 | 52.63% |
| Vadim Fedorenko | 52 | 0.77% | 1 | 5.26% |
| Willem de Bruijn | 15 | 0.22% | 1 | 5.26% |
| Jiong Wang | 14 | 0.21% | 1 | 5.26% |
| Ilya Leoshkevich | 14 | 0.21% | 1 | 5.26% |
| Eric Dumazet | 4 | 0.06% | 1 | 5.26% |
| Total | 6738 | 19 |
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{ "access skb fields ok", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, len)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, mark)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, pkt_type)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, queue_mapping)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, protocol)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, vlan_present)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, vlan_tci)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, napi_id)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "access skb fields bad1", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "access skb fields bad2", .insns = { BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_LD_MAP_FD(BPF_REG_1, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, pkt_type)), BPF_EXIT_INSN(), }, .fixup_map_hash_8b = { 4 }, .errstr = "different pointers", .errstr_unpriv = "R1 pointer comparison", .result = REJECT, }, { "access skb fields bad3", .insns = { BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, pkt_type)), BPF_EXIT_INSN(), BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_LD_MAP_FD(BPF_REG_1, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_JMP_IMM(BPF_JA, 0, 0, -12), }, .fixup_map_hash_8b = { 6 }, .errstr = "different pointers", .errstr_unpriv = "R1 pointer comparison", .result = REJECT, }, { "access skb fields bad4", .insns = { BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, len)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), BPF_LD_MAP_FD(BPF_REG_1, 0), BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), BPF_JMP_IMM(BPF_JA, 0, 0, -13), }, .fixup_map_hash_8b = { 7 }, .errstr = "different pointers", .errstr_unpriv = "R1 pointer comparison", .result = REJECT, }, { "invalid access __sk_buff family", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, family)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff remote_ip4", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip4)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff local_ip4", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip4)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff remote_ip6", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip6)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff local_ip6", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip6)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff remote_port", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_port)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "invalid access __sk_buff remote_port", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_port)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "valid access __sk_buff family", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, family)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff remote_ip4", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip4)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff local_ip4", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip4)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff remote_ip6", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip6[0])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip6[1])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip6[2])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_ip6[3])), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff local_ip6", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip6[0])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip6[1])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip6[2])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_ip6[3])), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff remote_port", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, remote_port)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access __sk_buff remote_port", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, local_port)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "invalid access of tc_classid for SK_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, tc_classid)), BPF_EXIT_INSN(), }, .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_SKB, .errstr = "invalid bpf_context access", }, { "invalid access of skb->mark for SK_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, mark)), BPF_EXIT_INSN(), }, .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_SKB, .errstr = "invalid bpf_context access", }, { "check skb->mark is not writeable by SK_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, mark)), BPF_EXIT_INSN(), }, .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_SKB, .errstr = "invalid bpf_context access", }, { "check skb->tc_index is writeable by SK_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, tc_index)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "check skb->priority is writeable by SK_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, priority)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "direct packet read for SK_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct __sk_buff, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct __sk_buff, data_end)), BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "direct packet write for SK_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct __sk_buff, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct __sk_buff, data_end)), BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "overlapping checks for direct packet access SK_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct __sk_buff, data)), BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct __sk_buff, data_end)), BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "check skb->mark is not writeable by sockets", .insns = { BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, mark)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .errstr_unpriv = "R1 leaks addr", .result = REJECT, }, { "check skb->tc_index is not writeable by sockets", .insns = { BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, tc_index)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .errstr_unpriv = "R1 leaks addr", .result = REJECT, }, { "check cb access: byte", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 1), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 2), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 3), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1])), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1]) + 1), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1]) + 2), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1]) + 3), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2])), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2]) + 1), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2]) + 2), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2]) + 3), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3])), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3]) + 1), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3]) + 2), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3]) + 3), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4])), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 1), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 2), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 3), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0]) + 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0]) + 2), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0]) + 3), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1])), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1]) + 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1]) + 2), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1]) + 3), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2])), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2]) + 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2]) + 2), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2]) + 3), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3])), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3]) + 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3]) + 2), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3]) + 3), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4])), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4]) + 1), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4]) + 2), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4]) + 3), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "__sk_buff->hash, offset 0, byte store not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, hash)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "__sk_buff->tc_index, offset 3, byte store not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, tc_index) + 3), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check skb->hash byte load permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash)), #else BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 3), #endif BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check skb->hash byte load permitted 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 1), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check skb->hash byte load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 2), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check skb->hash byte load permitted 3", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 3), #else BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash)), #endif BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check cb access: byte, wrong type", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, }, { "check cb access: half", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 2), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1])), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1]) + 2), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2])), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2]) + 2), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3])), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3]) + 2), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4])), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 2), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0]) + 2), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1])), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1]) + 2), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2])), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2]) + 2), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3])), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3]) + 2), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4])), BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4]) + 2), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check cb access: half, unaligned", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 1), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check __sk_buff->hash, offset 0, half store not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, hash)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check __sk_buff->tc_index, offset 2, half store not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, tc_index) + 2), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check skb->hash half load permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash)), #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 2), #endif BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check skb->hash half load permitted 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 2), #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash)), #endif BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check skb->hash half load not permitted, unaligned 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 1), #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 3), #endif BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "check skb->hash half load not permitted, unaligned 3", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 3), #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hash) + 1), #endif BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "check cb access: half, wrong type", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, }, { "check cb access: word", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[1])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[3])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4])), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check cb access: word, unaligned 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0]) + 2), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: word, unaligned 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 1), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: word, unaligned 3", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 2), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: word, unaligned 4", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4]) + 3), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: double", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[2])), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[2])), BPF_EXIT_INSN(), }, .result = ACCEPT, }, { "check cb access: double, unaligned 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[1])), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: double, unaligned 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3])), BPF_EXIT_INSN(), }, .errstr = "misaligned context access", .result = REJECT, .flags = F_LOAD_WITH_STRICT_ALIGNMENT, }, { "check cb access: double, oob 1", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[4])), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check cb access: double, oob 2", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4])), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check __sk_buff->ifindex dw store not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, ifindex)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check __sk_buff->ifindex dw load not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, ifindex)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check cb access: double, wrong type", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[0])), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, }, { "check out of range skb->cb access", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0]) + 256), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .errstr_unpriv = "", .result = REJECT, .prog_type = BPF_PROG_TYPE_SCHED_ACT, }, { "write skb fields from socket prog", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[4])), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, mark)), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, tc_index)), BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, cb[2])), BPF_EXIT_INSN(), }, .result = ACCEPT, .errstr_unpriv = "R1 leaks addr", .result_unpriv = REJECT, }, { "write skb fields from tc_cls_act prog", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, cb[0])), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, mark)), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, tc_index)), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, tc_index)), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, cb[3])), BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, tstamp)), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, tstamp)), BPF_EXIT_INSN(), }, .errstr_unpriv = "", .result_unpriv = REJECT, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, { "check skb->data half load not permitted", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, data)), #else BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, data) + 2), #endif BPF_EXIT_INSN(), }, .result = REJECT, .errstr = "invalid bpf_context access", }, { "read gso_segs from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, gso_segs)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read gso_segs from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, gso_segs)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "write gso_segs from CGROUP_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, gso_segs)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = REJECT, .result_unpriv = REJECT, .errstr = "invalid bpf_context access off=164 size=4", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read gso_segs from CLS", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, gso_segs)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, { "read gso_size from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, gso_size)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read gso_size from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, gso_size)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "write gso_size from CGROUP_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, gso_size)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = REJECT, .result_unpriv = REJECT, .errstr = "invalid bpf_context access off=176 size=4", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read gso_size from CLS", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, gso_size)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, { "padding after gso_size is not accessible", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetofend(struct __sk_buff, gso_size)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = REJECT, .result_unpriv = REJECT, .errstr = "invalid bpf_context access off=180 size=4", .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, { "read hwtstamp from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hwtstamp)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read hwtstamp from CGROUP_SKB", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, hwtstamp)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "write hwtstamp from CGROUP_SKB", .insns = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, offsetof(struct __sk_buff, hwtstamp)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = REJECT, .result_unpriv = REJECT, .errstr = "invalid bpf_context access off=184 size=8", .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, { "read hwtstamp from CLS", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, hwtstamp)), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, { "check wire_len is not readable by sockets", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, wire_len)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, }, { "check wire_len is readable by tc classifier", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct __sk_buff, wire_len)), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .result = ACCEPT, }, { "check wire_len is not writable by tc classifier", .insns = { BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, wire_len)), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .errstr = "invalid bpf_context access", .errstr_unpriv = "R1 leaks addr", .result = REJECT, }, { "pkt > pkt_end taken check", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, // 0. r2 = *(u32 *)(r1 + data_end) offsetof(struct __sk_buff, data_end)), BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, // 1. r4 = *(u32 *)(r1 + data) offsetof(struct __sk_buff, data)), BPF_MOV64_REG(BPF_REG_3, BPF_REG_4), // 2. r3 = r4 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42), // 3. r3 += 42 BPF_MOV64_IMM(BPF_REG_1, 0), // 4. r1 = 0 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2), // 5. if r3 > r2 goto 8 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14), // 6. r4 += 14 BPF_MOV64_REG(BPF_REG_1, BPF_REG_4), // 7. r1 = r4 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 1), // 8. if r3 > r2 goto 10 BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9), // 9. r2 = *(u8 *)(r1 + 9) BPF_MOV64_IMM(BPF_REG_0, 0), // 10. r0 = 0 BPF_EXIT_INSN(), // 11. exit }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "pkt_end < pkt taken check", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, // 0. r2 = *(u32 *)(r1 + data_end) offsetof(struct __sk_buff, data_end)), BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, // 1. r4 = *(u32 *)(r1 + data) offsetof(struct __sk_buff, data)), BPF_MOV64_REG(BPF_REG_3, BPF_REG_4), // 2. r3 = r4 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42), // 3. r3 += 42 BPF_MOV64_IMM(BPF_REG_1, 0), // 4. r1 = 0 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2), // 5. if r3 > r2 goto 8 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14), // 6. r4 += 14 BPF_MOV64_REG(BPF_REG_1, BPF_REG_4), // 7. r1 = r4 BPF_JMP_REG(BPF_JLT, BPF_REG_2, BPF_REG_3, 1), // 8. if r2 < r3 goto 10 BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9), // 9. r2 = *(u8 *)(r1 + 9) BPF_MOV64_IMM(BPF_REG_0, 0), // 10. r0 = 0 BPF_EXIT_INSN(), // 11. exit }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, },
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