{ "valid access family in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, family)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "valid access remote_ip4 in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_ip4)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "valid access local_ip4 in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_ip4)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "valid access remote_port in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_port)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "valid access local_port in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_port)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "valid access remote_ip6 in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_ip6[0])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_ip6[1])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_ip6[2])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, remote_ip6[3])), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access local_ip6 in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_ip6[0])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_ip6[1])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_ip6[2])), BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, local_ip6[3])), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_SKB, }, { "valid access size in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, offsetof(struct sk_msg_md, size)), BPF_EXIT_INSN(), }, .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "invalid 64B read of size in SK_MSG", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, size)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_MSG, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "invalid read past end of SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, size) + 4), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_MSG, }, { "invalid read offset in SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, family) + 1), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", .result = REJECT, .prog_type = BPF_PROG_TYPE_SK_MSG, .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, }, { "direct packet read for SK_MSG", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, data)), BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, offsetof(struct sk_msg_md, 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_MSG, }, { "direct packet write for SK_MSG", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, data)), BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, offsetof(struct sk_msg_md, 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_MSG, }, { "overlapping checks for direct packet access SK_MSG", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, offsetof(struct sk_msg_md, data)), BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, offsetof(struct sk_msg_md, 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_MSG, },