1 // SPDX-License-Identifier: GPL-2.0 2 #include <test_progs.h> 3 #include <network_helpers.h> 4 5 void test_xdp(void) 6 { 7 struct vip key4 = {.protocol = 6, .family = AF_INET}; 8 struct vip key6 = {.protocol = 6, .family = AF_INET6}; 9 struct iptnl_info value4 = {.family = AF_INET}; 10 struct iptnl_info value6 = {.family = AF_INET6}; 11 const char *file = "./test_xdp.o"; 12 struct bpf_object *obj; 13 char buf[128]; 14 struct ipv6hdr *iph6 = (void *)buf + sizeof(struct ethhdr); 15 struct iphdr *iph = (void *)buf + sizeof(struct ethhdr); 16 __u32 duration, retval, size; 17 int err, prog_fd, map_fd; 18 19 err = bpf_prog_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd); 20 if (CHECK_FAIL(err)) 21 return; 22 23 map_fd = bpf_find_map(__func__, obj, "vip2tnl"); 24 if (map_fd < 0) 25 goto out; 26 bpf_map_update_elem(map_fd, &key4, &value4, 0); 27 bpf_map_update_elem(map_fd, &key6, &value6, 0); 28 29 err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4), 30 buf, &size, &retval, &duration); 31 32 CHECK(err || retval != XDP_TX || size != 74 || 33 iph->protocol != IPPROTO_IPIP, "ipv4", 34 "err %d errno %d retval %d size %d\n", 35 err, errno, retval, size); 36 37 err = bpf_prog_test_run(prog_fd, 1, &pkt_v6, sizeof(pkt_v6), 38 buf, &size, &retval, &duration); 39 CHECK(err || retval != XDP_TX || size != 114 || 40 iph6->nexthdr != IPPROTO_IPV6, "ipv6", 41 "err %d errno %d retval %d size %d\n", 42 err, errno, retval, size); 43 out: 44 bpf_object__close(obj); 45 } 46