From: Eduard Zingerman Date: Sat, 25 Mar 2023 02:55:02 +0000 (+0200) Subject: selftests/bpf: verifier/helper_packet_access.c converted to inline assembly X-Git-Tag: v6.6.7~2736^2~129^2~60^2~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fb179fe69e6a7bf66232d72a77f53ec10c026ee7;p=platform%2Fkernel%2Flinux-starfive.git selftests/bpf: verifier/helper_packet_access.c converted to inline assembly Test verifier/helper_packet_access.c automatically converted to use inline assembly. Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20230325025524.144043-22-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov --- diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c index 22d7e15..1cd162d 100644 --- a/tools/testing/selftests/bpf/prog_tests/verifier.c +++ b/tools/testing/selftests/bpf/prog_tests/verifier.c @@ -18,6 +18,7 @@ #include "verifier_div0.skel.h" #include "verifier_div_overflow.skel.h" #include "verifier_helper_access_var_len.skel.h" +#include "verifier_helper_packet_access.skel.h" __maybe_unused static void run_tests_aux(const char *skel_name, skel_elf_bytes_fn elf_bytes_factory) @@ -58,3 +59,4 @@ void test_verifier_direct_stack_access_wraparound(void) { RUN(verifier_direct_st void test_verifier_div0(void) { RUN(verifier_div0); } void test_verifier_div_overflow(void) { RUN(verifier_div_overflow); } void test_verifier_helper_access_var_len(void) { RUN(verifier_helper_access_var_len); } +void test_verifier_helper_packet_access(void) { RUN(verifier_helper_packet_access); } diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c new file mode 100644 index 0000000..74f5f9c --- /dev/null +++ b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c @@ -0,0 +1,550 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Converted from tools/testing/selftests/bpf/verifier/helper_packet_access.c */ + +#include +#include +#include "bpf_misc.h" + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __uint(max_entries, 1); + __type(key, long long); + __type(value, long long); +} map_hash_8b SEC(".maps"); + +SEC("xdp") +__description("helper access to packet: test1, valid packet_ptr range") +__success __retval(0) +__naked void test1_valid_packet_ptr_range(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[xdp_md_data]); \ + r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ + r1 = r2; \ + r1 += 8; \ + if r1 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + r3 = r2; \ + r4 = 0; \ + call %[bpf_map_update_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_update_elem), + __imm_addr(map_hash_8b), + __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), + __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)) + : __clobber_all); +} + +SEC("xdp") +__description("helper access to packet: test2, unchecked packet_ptr") +__failure __msg("invalid access to packet") +__naked void packet_test2_unchecked_packet_ptr(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[xdp_md_data]); \ + r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ + r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(xdp_md_data, offsetof(struct xdp_md, data)) + : __clobber_all); +} + +SEC("xdp") +__description("helper access to packet: test3, variable add") +__success __retval(0) +__naked void to_packet_test3_variable_add(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[xdp_md_data]); \ + r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ + r4 = r2; \ + r4 += 8; \ + if r4 > r3 goto l0_%=; \ + r5 = *(u8*)(r2 + 0); \ + r4 = r2; \ + r4 += r5; \ + r5 = r4; \ + r5 += 8; \ + if r5 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + r2 = r4; \ + call %[bpf_map_lookup_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), + __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)) + : __clobber_all); +} + +SEC("xdp") +__description("helper access to packet: test4, packet_ptr with bad range") +__failure __msg("invalid access to packet") +__naked void packet_ptr_with_bad_range_1(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[xdp_md_data]); \ + r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ + r4 = r2; \ + r4 += 4; \ + if r4 > r3 goto l0_%=; \ + r0 = 0; \ + exit; \ +l0_%=: r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ + r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), + __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)) + : __clobber_all); +} + +SEC("xdp") +__description("helper access to packet: test5, packet_ptr with too short range") +__failure __msg("invalid access to packet") +__naked void ptr_with_too_short_range_1(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[xdp_md_data]); \ + r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ + r2 += 1; \ + r4 = r2; \ + r4 += 7; \ + if r4 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), + __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test6, cls valid packet_ptr range") +__success __retval(0) +__naked void cls_valid_packet_ptr_range(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[__sk_buff_data]); \ + r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r1 = r2; \ + r1 += 8; \ + if r1 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + r3 = r2; \ + r4 = 0; \ + call %[bpf_map_update_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_update_elem), + __imm_addr(map_hash_8b), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test7, cls unchecked packet_ptr") +__failure __msg("invalid access to packet") +__naked void test7_cls_unchecked_packet_ptr(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[__sk_buff_data]); \ + r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ + r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test8, cls variable add") +__success __retval(0) +__naked void packet_test8_cls_variable_add(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[__sk_buff_data]); \ + r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r4 = r2; \ + r4 += 8; \ + if r4 > r3 goto l0_%=; \ + r5 = *(u8*)(r2 + 0); \ + r4 = r2; \ + r4 += r5; \ + r5 = r4; \ + r5 += 8; \ + if r5 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + r2 = r4; \ + call %[bpf_map_lookup_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test9, cls packet_ptr with bad range") +__failure __msg("invalid access to packet") +__naked void packet_ptr_with_bad_range_2(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[__sk_buff_data]); \ + r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r4 = r2; \ + r4 += 4; \ + if r4 > r3 goto l0_%=; \ + r0 = 0; \ + exit; \ +l0_%=: r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ + r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test10, cls packet_ptr with too short range") +__failure __msg("invalid access to packet") +__naked void ptr_with_too_short_range_2(void) +{ + asm volatile (" \ + r2 = *(u32*)(r1 + %[__sk_buff_data]); \ + r3 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r2 += 1; \ + r4 = r2; \ + r4 += 7; \ + if r4 > r3 goto l0_%=; \ + r1 = %[map_hash_8b] ll; \ + call %[bpf_map_lookup_elem]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_map_lookup_elem), + __imm_addr(map_hash_8b), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test11, cls unsuitable helper 1") +__failure __msg("helper access to the packet") +__naked void test11_cls_unsuitable_helper_1(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r3 = r6; \ + r3 += 7; \ + if r3 > r7 goto l0_%=; \ + r2 = 0; \ + r4 = 42; \ + r5 = 0; \ + call %[bpf_skb_store_bytes]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_skb_store_bytes), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test12, cls unsuitable helper 2") +__failure __msg("helper access to the packet") +__naked void test12_cls_unsuitable_helper_2(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r3 = r6; \ + r6 += 8; \ + if r6 > r7 goto l0_%=; \ + r2 = 0; \ + r4 = 4; \ + call %[bpf_skb_load_bytes]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_skb_load_bytes), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test13, cls helper ok") +__success __retval(0) +__naked void packet_test13_cls_helper_ok(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r6; \ + r2 = 4; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test14, cls helper ok sub") +__success __retval(0) +__naked void test14_cls_helper_ok_sub(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 -= 4; \ + r2 = 4; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test15, cls helper fail sub") +__failure __msg("invalid access to packet") +__naked void test15_cls_helper_fail_sub(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 -= 12; \ + r2 = 4; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test16, cls helper fail range 1") +__failure __msg("invalid access to packet") +__naked void cls_helper_fail_range_1(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r6; \ + r2 = 8; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test17, cls helper fail range 2") +__failure __msg("R2 min value is negative") +__naked void cls_helper_fail_range_2(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r6; \ + r2 = -9; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test18, cls helper fail range 3") +__failure __msg("R2 min value is negative") +__naked void cls_helper_fail_range_3(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r6; \ + r2 = %[__imm_0]; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__imm_0, ~0), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test19, cls helper range zero") +__success __retval(0) +__naked void test19_cls_helper_range_zero(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r6; \ + r2 = 0; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test20, pkt end as input") +__failure __msg("R1 type=pkt_end expected=fp") +__naked void test20_pkt_end_as_input(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r1 = r7; \ + r2 = 4; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +SEC("tc") +__description("helper access to packet: test21, wrong reg") +__failure __msg("invalid access to packet") +__naked void to_packet_test21_wrong_reg(void) +{ + asm volatile (" \ + r6 = *(u32*)(r1 + %[__sk_buff_data]); \ + r7 = *(u32*)(r1 + %[__sk_buff_data_end]); \ + r6 += 1; \ + r1 = r6; \ + r1 += 7; \ + if r1 > r7 goto l0_%=; \ + r2 = 4; \ + r3 = 0; \ + r4 = 0; \ + r5 = 0; \ + call %[bpf_csum_diff]; \ + r0 = 0; \ +l0_%=: exit; \ +" : + : __imm(bpf_csum_diff), + __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)), + __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)) + : __clobber_all); +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/verifier/helper_packet_access.c b/tools/testing/selftests/bpf/verifier/helper_packet_access.c deleted file mode 100644 index ae54587e..0000000 --- a/tools/testing/selftests/bpf/verifier/helper_packet_access.c +++ /dev/null @@ -1,460 +0,0 @@ -{ - "helper access to packet: test1, valid packet_ptr range", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, - offsetof(struct xdp_md, data_end)), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_update_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 5 }, - .result_unpriv = ACCEPT, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_XDP, -}, -{ - "helper access to packet: test2, unchecked packet_ptr", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 1 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_XDP, -}, -{ - "helper access to packet: test3, variable add", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, - offsetof(struct xdp_md, data_end)), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), - BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), - BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 11 }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_XDP, -}, -{ - "helper access to packet: test4, packet_ptr with bad range", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, - offsetof(struct xdp_md, data_end)), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 7 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_XDP, -}, -{ - "helper access to packet: test5, packet_ptr with too short range", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, - offsetof(struct xdp_md, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 6 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_XDP, -}, -{ - "helper access to packet: test6, cls valid packet_ptr range", - .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_1, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_update_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 5 }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test7, cls unchecked packet_ptr", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 1 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test8, cls variable add", - .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_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), - BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), - BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 11 }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test9, cls packet_ptr with bad range", - .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_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 7 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test10, cls packet_ptr with too short range", - .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_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), - BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), - BPF_LD_MAP_FD(BPF_REG_1, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .fixup_map_hash_8b = { 6 }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test11, cls unsuitable helper 1", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), - BPF_MOV64_IMM(BPF_REG_2, 0), - BPF_MOV64_IMM(BPF_REG_4, 42), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_store_bytes), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "helper access to the packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test12, cls unsuitable helper 2", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, 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_6, 8), - BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), - BPF_MOV64_IMM(BPF_REG_2, 0), - BPF_MOV64_IMM(BPF_REG_4, 4), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "helper access to the packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test13, cls helper ok", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_MOV64_IMM(BPF_REG_2, 4), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test14, cls helper ok sub", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), - BPF_MOV64_IMM(BPF_REG_2, 4), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test15, cls helper fail sub", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12), - BPF_MOV64_IMM(BPF_REG_2, 4), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test16, cls helper fail range 1", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_MOV64_IMM(BPF_REG_2, 8), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test17, cls helper fail range 2", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_MOV64_IMM(BPF_REG_2, -9), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "R2 min value is negative", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test18, cls helper fail range 3", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_MOV64_IMM(BPF_REG_2, ~0), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "R2 min value is negative", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test19, cls helper range zero", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_MOV64_IMM(BPF_REG_2, 0), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = ACCEPT, - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test20, pkt end as input", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), - BPF_MOV64_IMM(BPF_REG_2, 4), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "R1 type=pkt_end expected=fp", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -}, -{ - "helper access to packet: test21, wrong reg", - .insns = { - BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, - offsetof(struct __sk_buff, data)), - BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, - offsetof(struct __sk_buff, data_end)), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), - BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), - BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), - BPF_MOV64_IMM(BPF_REG_2, 4), - BPF_MOV64_IMM(BPF_REG_3, 0), - BPF_MOV64_IMM(BPF_REG_4, 0), - BPF_MOV64_IMM(BPF_REG_5, 0), - BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_csum_diff), - BPF_MOV64_IMM(BPF_REG_0, 0), - BPF_EXIT_INSN(), - }, - .result = REJECT, - .errstr = "invalid access to packet", - .prog_type = BPF_PROG_TYPE_SCHED_CLS, -},