diff options
| -rw-r--r-- | samples/bpf/test_verifier.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/samples/bpf/test_verifier.c b/samples/bpf/test_verifier.c index 9eba8d1d9dcc..fe2fcec98c1f 100644 --- a/samples/bpf/test_verifier.c +++ b/samples/bpf/test_verifier.c @@ -1448,6 +1448,86 @@ static struct bpf_test tests[] = { .result = ACCEPT, .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, + { + "pkt: test1", + .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_SCHED_CLS, + }, + { + "pkt: test2", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, + offsetof(struct __sk_buff, data_end)), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct __sk_buff, data)), + BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), + BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), + BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), + BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), + BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), + BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, + offsetof(struct __sk_buff, data)), + BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), + BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), + BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), + BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), + BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, + offsetof(struct __sk_buff, data_end)), + BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), + BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + }, + { + "pkt: test3", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, + offsetof(struct __sk_buff, data)), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "invalid bpf_context access off=76", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, + }, + { + "pkt: test4", + .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(), + }, + .errstr = "cannot write", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + }, }; static int probe_filter_length(struct bpf_insn *fp) |