mirror of https://gitee.com/openkylin/linux.git
160 lines
3.6 KiB
C
160 lines
3.6 KiB
C
{
|
|
"dead code: start",
|
|
.insns = {
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 2),
|
|
BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 2),
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, -4),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: mid 1",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 0),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: mid 2",
|
|
.insns = {
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
|
|
BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 4),
|
|
BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 2),
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 1),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 1,
|
|
},
|
|
{
|
|
"dead code: end 1",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: end 2",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 12),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: end 3",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 1),
|
|
BPF_MOV64_IMM(BPF_REG_0, 12),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, -5),
|
|
},
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: tail of main + func",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 12),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.errstr_unpriv = "function calls to other bpf functions are allowed for",
|
|
.result_unpriv = REJECT,
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: tail of main + two functions",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 12),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.errstr_unpriv = "function calls to other bpf functions are allowed for",
|
|
.result_unpriv = REJECT,
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: function in the middle and mid of another func",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_1, 7),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 12),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 7),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 7, 1),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -5),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.errstr_unpriv = "function calls to other bpf functions are allowed for",
|
|
.result_unpriv = REJECT,
|
|
.result = ACCEPT,
|
|
.retval = 7,
|
|
},
|
|
{
|
|
"dead code: middle of main before call",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_1, 2),
|
|
BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 2, 1),
|
|
BPF_MOV64_IMM(BPF_REG_1, 5),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.errstr_unpriv = "function calls to other bpf functions are allowed for",
|
|
.result_unpriv = REJECT,
|
|
.result = ACCEPT,
|
|
.retval = 2,
|
|
},
|
|
{
|
|
"dead code: start of a function",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_1, 2),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 0),
|
|
BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.errstr_unpriv = "function calls to other bpf functions are allowed for",
|
|
.result_unpriv = REJECT,
|
|
.result = ACCEPT,
|
|
.retval = 2,
|
|
},
|