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8f6f41f393
Similar to previous patch, just copy over necessary struct into local stack variable before checking its fields. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20211124002325.1737739-14-andrii@kernel.org
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include <network_helpers.h>
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void test_xdp(void)
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{
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struct vip key4 = {.protocol = 6, .family = AF_INET};
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struct vip key6 = {.protocol = 6, .family = AF_INET6};
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struct iptnl_info value4 = {.family = AF_INET};
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struct iptnl_info value6 = {.family = AF_INET6};
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const char *file = "./test_xdp.o";
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struct bpf_object *obj;
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char buf[128];
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struct ipv6hdr iph6;
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struct iphdr iph;
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__u32 duration, retval, size;
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int err, prog_fd, map_fd;
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err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
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if (CHECK_FAIL(err))
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return;
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map_fd = bpf_find_map(__func__, obj, "vip2tnl");
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if (map_fd < 0)
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goto out;
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bpf_map_update_elem(map_fd, &key4, &value4, 0);
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bpf_map_update_elem(map_fd, &key6, &value6, 0);
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err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
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buf, &size, &retval, &duration);
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memcpy(&iph, buf + sizeof(struct ethhdr), sizeof(iph));
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CHECK(err || retval != XDP_TX || size != 74 ||
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iph.protocol != IPPROTO_IPIP, "ipv4",
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"err %d errno %d retval %d size %d\n",
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err, errno, retval, size);
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err = bpf_prog_test_run(prog_fd, 1, &pkt_v6, sizeof(pkt_v6),
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buf, &size, &retval, &duration);
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memcpy(&iph6, buf + sizeof(struct ethhdr), sizeof(iph6));
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CHECK(err || retval != XDP_TX || size != 114 ||
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iph6.nexthdr != IPPROTO_IPV6, "ipv6",
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"err %d errno %d retval %d size %d\n",
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err, errno, retval, size);
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out:
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bpf_object__close(obj);
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}
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