diff options
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/ctx_sk_msg.c')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/ctx_sk_msg.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/ctx_sk_msg.c b/tools/testing/selftests/bpf/verifier/ctx_sk_msg.c new file mode 100644 index 000000000000..b0195770da6a --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/ctx_sk_msg.c @@ -0,0 +1,180 @@ +{ + "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, +}, +{ + "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, +}, |