| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* Converted from tools/testing/selftests/bpf/verifier/xdp.c */ |
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| 3 | |
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| 4 | #include <linux/bpf.h> |
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| 5 | #include <bpf/bpf_helpers.h> |
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| 6 | #include "bpf_misc.h" |
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| 7 | |
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| 8 | SEC("xdp" ) |
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| 9 | __description("XDP, using ifindex from netdev" ) |
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| 10 | __success __retval(1) |
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| 11 | __naked void xdp_using_ifindex_from_netdev(void) |
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| 12 | { |
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| 13 | asm volatile (" \ |
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| 14 | r0 = 0; \ |
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| 15 | r2 = *(u32*)(r1 + %[xdp_md_ingress_ifindex]); \ |
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| 16 | if r2 < 1 goto l0_%=; \ |
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| 17 | r0 = 1; \ |
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| 18 | l0_%=: exit; \ |
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| 19 | " : |
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| 20 | : __imm_const(xdp_md_ingress_ifindex, offsetof(struct xdp_md, ingress_ifindex)) |
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| 21 | : __clobber_all); |
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| 22 | } |
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| 23 | |
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| 24 | char _license[] SEC("license" ) = "GPL" ; |
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| 25 | |
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