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-rw-r--r--samples/bpf/xdp1_user.c167
1 files changed, 0 insertions, 167 deletions
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c
deleted file mode 100644
index c447ad9e3a1d..000000000000
--- a/samples/bpf/xdp1_user.c
+++ /dev/null
@@ -1,167 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Copyright (c) 2016 PLUMgrid
- */
-#include <linux/bpf.h>
-#include <linux/if_link.h>
-#include <assert.h>
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <libgen.h>
-#include <sys/resource.h>
-#include <net/if.h>
-
-#include "bpf_util.h"
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-static int ifindex;
-static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
-static __u32 prog_id;
-
-static void int_exit(int sig)
-{
- __u32 curr_prog_id = 0;
-
- if (bpf_get_link_xdp_id(ifindex, &curr_prog_id, xdp_flags)) {
- printf("bpf_get_link_xdp_id failed\n");
- exit(1);
- }
- if (prog_id == curr_prog_id)
- bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
- else if (!curr_prog_id)
- printf("couldn't find a prog id on a given interface\n");
- else
- printf("program on interface changed, not removing\n");
- exit(0);
-}
-
-/* simple per-protocol drop counter
- */
-static void poll_stats(int map_fd, int interval)
-{
- unsigned int nr_cpus = bpf_num_possible_cpus();
- __u64 values[nr_cpus], prev[UINT8_MAX] = { 0 };
- int i;
-
- while (1) {
- __u32 key = UINT32_MAX;
-
- sleep(interval);
-
- while (bpf_map_get_next_key(map_fd, &key, &key) != -1) {
- __u64 sum = 0;
-
- assert(bpf_map_lookup_elem(map_fd, &key, values) == 0);
- for (i = 0; i < nr_cpus; i++)
- sum += values[i];
- if (sum > prev[key])
- printf("proto %u: %10llu pkt/s\n",
- key, (sum - prev[key]) / interval);
- prev[key] = sum;
- }
- }
-}
-
-static void usage(const char *prog)
-{
- fprintf(stderr,
- "usage: %s [OPTS] IFACE\n\n"
- "OPTS:\n"
- " -S use skb-mode\n"
- " -N enforce native mode\n"
- " -F force loading prog\n",
- prog);
-}
-
-int main(int argc, char **argv)
-{
- struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
- struct bpf_prog_load_attr prog_load_attr = {
- .prog_type = BPF_PROG_TYPE_XDP,
- };
- struct bpf_prog_info info = {};
- __u32 info_len = sizeof(info);
- const char *optstr = "FSN";
- int prog_fd, map_fd, opt;
- struct bpf_object *obj;
- struct bpf_map *map;
- char filename[256];
- int err;
-
- while ((opt = getopt(argc, argv, optstr)) != -1) {
- switch (opt) {
- case 'S':
- xdp_flags |= XDP_FLAGS_SKB_MODE;
- break;
- case 'N':
- /* default, set below */
- break;
- case 'F':
- xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST;
- break;
- default:
- usage(basename(argv[0]));
- return 1;
- }
- }
-
- if (!(xdp_flags & XDP_FLAGS_SKB_MODE))
- xdp_flags |= XDP_FLAGS_DRV_MODE;
-
- if (optind == argc) {
- usage(basename(argv[0]));
- return 1;
- }
-
- if (setrlimit(RLIMIT_MEMLOCK, &r)) {
- perror("setrlimit(RLIMIT_MEMLOCK)");
- return 1;
- }
-
- ifindex = if_nametoindex(argv[optind]);
- if (!ifindex) {
- perror("if_nametoindex");
- return 1;
- }
-
- snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
- prog_load_attr.file = filename;
-
- if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
- return 1;
-
- map = bpf_map__next(NULL, obj);
- if (!map) {
- printf("finding a map in obj file failed\n");
- return 1;
- }
- map_fd = bpf_map__fd(map);
-
- if (!prog_fd) {
- printf("bpf_prog_load_xattr: %s\n", strerror(errno));
- return 1;
- }
-
- signal(SIGINT, int_exit);
- signal(SIGTERM, int_exit);
-
- if (bpf_set_link_xdp_fd(ifindex, prog_fd, xdp_flags) < 0) {
- printf("link set xdp fd failed\n");
- return 1;
- }
-
- err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
- if (err) {
- printf("can't get prog info - %s\n", strerror(errno));
- return err;
- }
- prog_id = info.id;
-
- poll_stats(map_fd, 2);
-
- return 0;
-}