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// SPDX-License-Identifier: GPL-2.0
/* Converted from tools/testing/selftests/bpf/verifier/xdp.c */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 1);
__type(key, int);
__type(value, __u64);
__uint(map_flags, BPF_F_RDONLY_PROG);
} map_array_ro SEC(".maps");
SEC("xdp")
__description("XDP, using ifindex from netdev")
__success __retval(1)
__naked void xdp_using_ifindex_from_netdev(void)
{
asm volatile (" \
r0 = 0; \
r2 = *(u32*)(r1 + %[xdp_md_ingress_ifindex]); \
if r2 < 1 goto l0_%=; \
r0 = 1; \
l0_%=: exit; \
" :
: __imm_const(xdp_md_ingress_ifindex, offsetof(struct xdp_md, ingress_ifindex))
: __clobber_all);
}
SEC("xdp")
__description("XDP, using xdp_store_bytes from RO map")
__success __retval(0)
__naked void xdp_store_bytes_from_ro_map(void)
{
asm volatile (" \
r6 = r1; \
r1 = 0; \
*(u64*)(r10 - 8) = r1; \
r2 = r10; \
r2 += -8; \
r1 = %[map_array_ro] ll; \
call %[bpf_map_lookup_elem]; \
if r0 == 0 goto l0_%=; \
r1 = r6; \
r2 = 0; \
r3 = r0; \
r4 = 8; \
call %[bpf_xdp_store_bytes]; \
l0_%=: exit; \
" :
: __imm(bpf_map_lookup_elem),
__imm(bpf_xdp_store_bytes),
__imm_addr(map_array_ro)
: __clobber_all);
}
char _license[] SEC("license") = "GPL";
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