| { |
| "pkt_end - pkt_start is allowed", |
| .insns = { |
| BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| offsetof(struct __sk_buff, data_end)), |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| offsetof(struct __sk_buff, data)), |
| BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_2), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .retval = TEST_DATA_LEN, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: 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, |
| }, |
| { |
| "direct packet access: 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_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| offsetof(struct __sk_buff, len)), |
| BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49), |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49), |
| 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, |
| }, |
| { |
| "direct packet access: 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, |
| }, |
| { |
| "direct packet access: test4 (write)", |
| .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(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test5 (pkt_end >= reg, good access)", |
| .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_JGE, BPF_REG_3, BPF_REG_0, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| 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, |
| }, |
| { |
| "direct packet access: test6 (pkt_end >= reg, bad access)", |
| .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_JGE, BPF_REG_3, BPF_REG_0, 3), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .errstr = "invalid access to packet", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test7 (pkt_end >= reg, both accesses)", |
| .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_JGE, BPF_REG_3, BPF_REG_0, 3), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .errstr = "invalid access to packet", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test8 (double test, variant 1)", |
| .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_JGE, BPF_REG_3, BPF_REG_0, 4), |
| 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, 1), |
| BPF_EXIT_INSN(), |
| 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, |
| }, |
| { |
| "direct packet access: test9 (double test, variant 2)", |
| .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_JGE, BPF_REG_3, BPF_REG_0, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| 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_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, |
| }, |
| { |
| "direct packet access: test10 (write invalid)", |
| .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, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .errstr = "invalid access to packet", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test11 (shift, good access)", |
| .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, 22), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), |
| BPF_MOV64_IMM(BPF_REG_3, 144), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .retval = 1, |
| }, |
| { |
| "direct packet access: test12 (and, good access)", |
| .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, 22), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), |
| BPF_MOV64_IMM(BPF_REG_3, 144), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .retval = 1, |
| }, |
| { |
| "direct packet access: test13 (branches, good access)", |
| .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, 22), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), |
| BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| offsetof(struct __sk_buff, mark)), |
| BPF_MOV64_IMM(BPF_REG_4, 1), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), |
| BPF_MOV64_IMM(BPF_REG_3, 14), |
| BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| BPF_MOV64_IMM(BPF_REG_3, 24), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .retval = 1, |
| }, |
| { |
| "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", |
| .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, 22), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), |
| BPF_MOV64_IMM(BPF_REG_5, 12), |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), |
| BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .retval = 1, |
| }, |
| { |
| "direct packet access: test15 (spill with xadd)", |
| .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, 8), |
| BPF_MOV64_IMM(BPF_REG_5, 4096), |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), |
| BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), |
| BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_4, BPF_REG_5, 0), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), |
| BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .errstr = "R2 invalid mem access 'inv'", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test16 (arith on data_end)", |
| .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_ALU64_IMM(BPF_ADD, BPF_REG_3, 16), |
| 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 = "R3 pointer arithmetic on pkt_end", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test17 (pruning, alignment)", |
| .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_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| offsetof(struct __sk_buff, mark)), |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14), |
| BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), |
| BPF_JMP_A(-6), |
| }, |
| .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4", |
| .result = REJECT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
| }, |
| { |
| "direct packet access: test18 (imm += pkt_ptr, 1)", |
| .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_IMM(BPF_REG_0, 8), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 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_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test19 (imm += pkt_ptr, 2)", |
| .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, 3), |
| BPF_MOV64_IMM(BPF_REG_4, 4), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test20 (x += pkt_ptr, 1)", |
| .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_IMM(BPF_REG_0, 0xffffffff), |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff), |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .result = ACCEPT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test21 (x += pkt_ptr, 2)", |
| .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, 9), |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .result = ACCEPT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test22 (x += pkt_ptr, 3)", |
| .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_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), |
| BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
| BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_10, BPF_REG_4, -8), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), |
| BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), |
| BPF_MOV64_IMM(BPF_REG_2, 1), |
| BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .result = ACCEPT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test23 (x += pkt_ptr, 4)", |
| .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_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| offsetof(struct __sk_buff, mark)), |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff), |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| BPF_MOV64_IMM(BPF_REG_0, 31), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .result = REJECT, |
| .errstr = "invalid access to packet, off=0 size=8, R5(id=2,off=0,r=0)", |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test24 (x += pkt_ptr, 5)", |
| .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_IMM(BPF_REG_0, 0xffffffff), |
| BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff), |
| BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| BPF_MOV64_IMM(BPF_REG_0, 64), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), |
| BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| }, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .result = ACCEPT, |
| .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| }, |
| { |
| "direct packet access: test25 (marking on <, good access)", |
| .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_JLT, BPF_REG_0, BPF_REG_3, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test26 (marking on <, bad access)", |
| .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_JLT, BPF_REG_0, BPF_REG_3, 3), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| BPF_JMP_IMM(BPF_JA, 0, 0, -3), |
| }, |
| .result = REJECT, |
| .errstr = "invalid access to packet", |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test27 (marking on <=, good access)", |
| .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_JLE, BPF_REG_3, BPF_REG_0, 1), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| .retval = 1, |
| }, |
| { |
| "direct packet access: test28 (marking on <=, bad access)", |
| .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_JLE, BPF_REG_3, BPF_REG_0, 2), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| }, |
| .result = REJECT, |
| .errstr = "invalid access to packet", |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
| { |
| "direct packet access: test29 (reg > pkt_end in subprog)", |
| .insns = { |
| BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| offsetof(struct __sk_buff, data)), |
| BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| offsetof(struct __sk_buff, data_end)), |
| BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 8), |
| BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4), |
| BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_EXIT_INSN(), |
| BPF_MOV64_IMM(BPF_REG_0, 0), |
| BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 1), |
| BPF_MOV64_IMM(BPF_REG_0, 1), |
| BPF_EXIT_INSN(), |
| }, |
| .result = ACCEPT, |
| .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| }, |
