| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Eduard Zingerman | 2309 | 100.00% | 1 | 100.00% |
| Total | 2309 | 1 |
// SPDX-License-Identifier: GPL-2.0 /* Converted from tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c */ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include "bpf_misc.h" SEC("xdp") __description("XDP pkt read, pkt_end mangling, bad access 1") __failure __msg("R3 pointer arithmetic on pkt_end") __naked void end_mangling_bad_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ r3 += 8; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end mangling, bad access 2") __failure __msg("R3 pointer arithmetic on pkt_end") __naked void end_mangling_bad_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ r3 -= 8; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' > pkt_end, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_corner_case_good_access_1(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_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' > pkt_end, bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_1_1(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_%=; \ r0 = *(u64*)(r1 - 4); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' > pkt_end, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_2_1(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_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' > pkt_end, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 9; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 9); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end > pkt_data', good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_pkt_data_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end > pkt_data', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 6; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 6); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end > pkt_data', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end > pkt_data', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end > pkt_data', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' < pkt_end, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_pkt_end_good_access_1(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_%=; \ goto l1_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 6; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 6); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' < pkt_end, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_2_2(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_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' < pkt_end, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_corner_case_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' < pkt_end, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_3(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_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end < pkt_data', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end < pkt_data', bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_1_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 4); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end < pkt_data', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end < pkt_data', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 9; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 9); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end < pkt_data', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' >= pkt_end, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_pkt_end_good_access_2(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_%=; \ r0 = *(u32*)(r1 - 5); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_5(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 6; \ if r1 >= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 6); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' >= pkt_end, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_2_3(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_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' >= pkt_end, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_corner_case_good_access_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r1 >= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_5(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_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end >= pkt_data', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end >= pkt_data', bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_1_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 4); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end >= pkt_data', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end >= pkt_data', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_6(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 9; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 9); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_6(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' <= pkt_end, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_corner_case_good_access_4(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_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' <= pkt_end, bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_1_2(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_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 4); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' <= pkt_end, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_end_bad_access_2_4(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_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_7(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 9; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 9); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_7(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end <= pkt_data', good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void end_pkt_data_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ r0 = *(u32*)(r1 - 5); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_8(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 6; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 6); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end <= pkt_data', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end <= pkt_data', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 7; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_end <= pkt_data', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_8(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data]); \ r3 = *(u32*)(r1 + %[xdp_md_data_end]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __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("XDP pkt read, pkt_meta' > pkt_data, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_5(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' > pkt_data, bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_1_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 4); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' > pkt_data, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_5(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 > r3 goto l0_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_9(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 9; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 9); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_9(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r1 > r3 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data > pkt_meta', good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_pkt_meta_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_10(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 6; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 6); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data > pkt_meta', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_2_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data > pkt_meta', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_corner_case_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data > pkt_meta', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_10(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 > r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' < pkt_data, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_pkt_data_good_access_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_11(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 6; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 6); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' < pkt_data, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_6(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 < r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' < pkt_data, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_6(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_11(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 < r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data < pkt_meta', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_corner_case_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data < pkt_meta', bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_1_1(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 4); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data < pkt_meta', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_2_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 < r1 goto l0_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data < pkt_meta', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_12(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 9; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 9); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_12(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r3 < r1 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' >= pkt_data, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_pkt_data_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 >= r3 goto l0_%=; \ r0 = *(u32*)(r1 - 5); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_13(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 6; \ if r1 >= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 6); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' >= pkt_data, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_7(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 >= r3 goto l0_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' >= pkt_data, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_7(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r1 >= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_13(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 >= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data >= pkt_meta', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_corner_case_good_access_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data >= pkt_meta', bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_1_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 4); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data >= pkt_meta', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_2_3(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 >= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_14(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 9; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 9); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_14(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r3 >= r1 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' <= pkt_data, corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_corner_case_good_access_8(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 8); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' <= pkt_data, bad access 1") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_1_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 4); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' <= pkt_data, bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_data_bad_access_2_8(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r1 <= r3 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_15(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 9; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 9); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_15(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r1 <= r3 goto l0_%=; \ goto l1_%=; \ l0_%=: r0 = *(u64*)(r1 - 7); \ l1_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data <= pkt_meta', good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void data_pkt_meta_good_access_2(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ r0 = *(u32*)(r1 - 5); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_bad_access_16(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 6; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 6); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data <= pkt_meta', bad access 2") __failure __msg("R1 offset is outside of the packet") __flag(BPF_F_ANY_ALIGNMENT) __naked void pkt_meta_bad_access_2_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ l0_%=: r0 = *(u32*)(r1 - 5); \ r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data <= pkt_meta', corner case, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void meta_corner_case_good_access_4(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 7; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 7); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } SEC("xdp") __description("XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access") __success __retval(0) __flag(BPF_F_ANY_ALIGNMENT) __naked void corner_case_1_good_access_16(void) { asm volatile (" \ r2 = *(u32*)(r1 + %[xdp_md_data_meta]); \ r3 = *(u32*)(r1 + %[xdp_md_data]); \ r1 = r2; \ r1 += 8; \ if r3 <= r1 goto l0_%=; \ r0 = *(u64*)(r1 - 8); \ l0_%=: r0 = 0; \ exit; \ " : : __imm_const(xdp_md_data, offsetof(struct xdp_md, data)), __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta)) : __clobber_all); } char _license[] SEC("license") = "GPL";
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