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-rw-r--r--tools/testing/selftests/bpf/progs/verifier_ldsx.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_ldsx.c b/tools/testing/selftests/bpf/progs/verifier_ldsx.c
index d4427d8e1217..52edee41caf6 100644
--- a/tools/testing/selftests/bpf/progs/verifier_ldsx.c
+++ b/tools/testing/selftests/bpf/progs/verifier_ldsx.c
@@ -144,6 +144,118 @@ __naked void ldsx_s32_range(void)
: __clobber_all);
}
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_1(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[xdp_md_data]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(xdp_md_data, offsetof(struct xdp_md, data))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_2(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[xdp_md_data_end]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+ : __clobber_all);
+}
+
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data_meta")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_3(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[xdp_md_data_meta]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+ : __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_4(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[sk_buff_data]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(sk_buff_data, offsetof(struct __sk_buff, data))
+ : __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_5(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[sk_buff_data_end]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data_meta")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_6(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[sk_buff_data_meta]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(sk_buff_data_meta, offsetof(struct __sk_buff, data_meta))
+ : __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("LDSX, flow_dissector s32 __sk_buff->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_7(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[sk_buff_data]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(sk_buff_data, offsetof(struct __sk_buff, data))
+ : __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("LDSX, flow_dissector s32 __sk_buff->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_8(void)
+{
+ asm volatile (
+ "r2 = *(s32 *)(r1 + %[sk_buff_data_end]);"
+ "r0 = 0;"
+ "exit;"
+ :
+ : __imm_const(sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+ : __clobber_all);
+}
+
#else
SEC("socket")