1 // SPDX-License-Identifier: GPL-2.0 2 #include <test_progs.h> 3 #include <net/if.h> 4 #include "test_xdp.skel.h" 5 #include "test_xdp_bpf2bpf.skel.h" 6 7 void test_xdp_bpf2bpf(void) 8 { 9 __u32 duration = 0, retval, size; 10 char buf[128]; 11 int err, pkt_fd, map_fd; 12 struct iphdr *iph = (void *)buf + sizeof(struct ethhdr); 13 struct iptnl_info value4 = {.family = AF_INET}; 14 struct test_xdp *pkt_skel = NULL; 15 struct test_xdp_bpf2bpf *ftrace_skel = NULL; 16 struct vip key4 = {.protocol = 6, .family = AF_INET}; 17 DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts); 18 19 /* Load XDP program to introspect */ 20 pkt_skel = test_xdp__open_and_load(); 21 if (CHECK(!pkt_skel, "pkt_skel_load", "test_xdp skeleton failed\n")) 22 return; 23 24 pkt_fd = bpf_program__fd(pkt_skel->progs._xdp_tx_iptunnel); 25 26 map_fd = bpf_map__fd(pkt_skel->maps.vip2tnl); 27 bpf_map_update_elem(map_fd, &key4, &value4, 0); 28 29 /* Load trace program */ 30 opts.attach_prog_fd = pkt_fd, 31 ftrace_skel = test_xdp_bpf2bpf__open_opts(&opts); 32 if (CHECK(!ftrace_skel, "__open", "ftrace skeleton failed\n")) 33 goto out; 34 35 err = test_xdp_bpf2bpf__load(ftrace_skel); 36 if (CHECK(err, "__load", "ftrace skeleton failed\n")) 37 goto out; 38 39 err = test_xdp_bpf2bpf__attach(ftrace_skel); 40 if (CHECK(err, "ftrace_attach", "ftrace attach failed: %d\n", err)) 41 goto out; 42 43 /* Run test program */ 44 err = bpf_prog_test_run(pkt_fd, 1, &pkt_v4, sizeof(pkt_v4), 45 buf, &size, &retval, &duration); 46 47 if (CHECK(err || retval != XDP_TX || size != 74 || 48 iph->protocol != IPPROTO_IPIP, "ipv4", 49 "err %d errno %d retval %d size %d\n", 50 err, errno, retval, size)) 51 goto out; 52 53 /* Verify test results */ 54 if (CHECK(ftrace_skel->bss->test_result_fentry != if_nametoindex("lo"), 55 "result", "fentry failed err %llu\n", 56 ftrace_skel->bss->test_result_fentry)) 57 goto out; 58 59 CHECK(ftrace_skel->bss->test_result_fexit != XDP_TX, "result", 60 "fexit failed err %llu\n", ftrace_skel->bss->test_result_fexit); 61 62 out: 63 test_xdp__destroy(pkt_skel); 64 test_xdp_bpf2bpf__destroy(ftrace_skel); 65 } 66