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Quelle  ctx_sk_lookup.c   Sprache: C

 
{
 "valid 1,2,4,8-byte reads from bpf_sk_lookup",
 .insns = {
  /* 1-byte read from family field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family) + 3),
  /* 2-byte read from family field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family) + 2),
  /* 4-byte read from family field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family)),

  /* 1-byte read from protocol field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol) + 3),
  /* 2-byte read from protocol field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol) + 2),
  /* 4-byte read from protocol field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol)),

  /* 1-byte read from remote_ip4 field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4) + 3),
  /* 2-byte read from remote_ip4 field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
  /* 4-byte read from remote_ip4 field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4)),

  /* 1-byte read from remote_ip6 field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 3),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 5),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 7),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 9),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 11),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 13),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 15),
  /* 2-byte read from remote_ip6 field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
  /* 4-byte read from remote_ip6 field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6)),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6) + 12),

  /* 1-byte read from remote_port field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port) + 3),
  /* 2-byte read from remote_port field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port) + 2),
  /* 4-byte read from remote_port field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port)),

  /* 1-byte read from local_ip4 field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4) + 3),
  /* 2-byte read from local_ip4 field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4) + 2),
  /* 4-byte read from local_ip4 field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4)),

  /* 1-byte read from local_ip6 field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 3),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 4),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 5),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 6),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 7),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 8),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 9),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 10),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 11),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 12),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 13),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 14),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 15),
  /* 2-byte read from local_ip6 field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 2),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 4),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 6),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 8),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 10),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 12),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 14),
  /* 4-byte read from local_ip6 field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6)),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 4),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 8),
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6) + 12),

  /* 1-byte read from local_port field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port) + 3),
  /* 2-byte read from local_port field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port) + 2),
  /* 4-byte read from local_port field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port)),

  /* 1-byte read from ingress_ifindex field */
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex)),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex) + 1),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex) + 3),
  /* 2-byte read from ingress_ifindex field */
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex)),
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
  /* 4-byte read from ingress_ifindex field */
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex)),

  /* 8-byte read from sk field */
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, sk)),

  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .result = ACCEPT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .runs = -1,
},
/* invalid 8-byte reads from a 4-byte fields in bpf_sk_lookup */
{
 "invalid 8-byte read from bpf_sk_lookup family field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, family)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 8-byte read from bpf_sk_lookup protocol field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, protocol)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 8-byte read from bpf_sk_lookup remote_ip4 field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip4)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 8-byte read from bpf_sk_lookup remote_ip6 field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_ip6)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 8-byte read from bpf_sk_lookup remote_port field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, remote_port)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 8-byte read from bpf_sk_lookup local_ip4 field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip4)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 8-byte read from bpf_sk_lookup local_ip6 field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_ip6)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 8-byte read from bpf_sk_lookup local_port field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, local_port)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 8-byte read from bpf_sk_lookup ingress_ifindex field",
 .insns = {
  BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, ingress_ifindex)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
/* invalid 1,2,4-byte reads from 8-byte fields in bpf_sk_lookup */
{
 "invalid 4-byte read from bpf_sk_lookup sk field",
 .insns = {
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, sk)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 2-byte read from bpf_sk_lookup sk field",
 .insns = {
  BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, sk)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 1-byte read from bpf_sk_lookup sk field",
 .insns = {
  BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
       offsetof(struct bpf_sk_lookup, sk)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
/* out of bounds and unaligned reads from bpf_sk_lookup */
{
 "invalid 4-byte read past end of bpf_sk_lookup",
 .insns = {
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
       sizeof(struct bpf_sk_lookup)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 4-byte unaligned read from bpf_sk_lookup at odd offset",
 .insns = {
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
 "invalid 4-byte unaligned read from bpf_sk_lookup at even offset",
 .insns = {
  BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 2),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
/* in-bound and out-of-bound writes to bpf_sk_lookup */
{
 "invalid 8-byte write to bpf_sk_lookup",
 .insns = {
  BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
  BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 4-byte write to bpf_sk_lookup",
 .insns = {
  BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
  BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 2-byte write to bpf_sk_lookup",
 .insns = {
  BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
  BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 0),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 1-byte write to bpf_sk_lookup",
 .insns = {
  BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
  BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},
{
 "invalid 4-byte write past end of bpf_sk_lookup",
 .insns = {
  BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
  BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
       sizeof(struct bpf_sk_lookup)),
  BPF_MOV32_IMM(BPF_REG_0, 0),
  BPF_EXIT_INSN(),
 },
 .errstr = "invalid bpf_context access",
 .result = REJECT,
 .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
 .expected_attach_type = BPF_SK_LOOKUP,
},

Messung V0.5
C=96 H=91 G=93

¤ Dauer der Verarbeitung: 0.5 Sekunden  ¤

*© Formatika GbR, Deutschland






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