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Diffstat (limited to 'src/xdp/utils/xdp_loader.c')
-rw-r--r--src/xdp/utils/xdp_loader.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/src/xdp/utils/xdp_loader.c b/src/xdp/utils/xdp_loader.c
deleted file mode 100644
index d3b05d0c0..000000000
--- a/src/xdp/utils/xdp_loader.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-static const char *__doc__ = "XDP loader\n"
- " - Allows selecting BPF section --progsec name to XDP-attach to --dev\n";
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <getopt.h>
-
-#include <locale.h>
-#include <unistd.h>
-#include <time.h>
-
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-#include <net/if.h>
-#include <linux/if_link.h> /* depend on kernel-headers installed */
-
-#include "../common/common_params.h"
-#include "../common/common_user_bpf_xdp.h"
-#include "../common/common_libbpf.h"
-
-static const char *default_filename = "xdp_prog_kern.o";
-
-static const struct option_wrapper long_options[] = {
-
- {{"help", no_argument, NULL, 'h' },
- "Show help", false},
-
- {{"dev", required_argument, NULL, 'd' },
- "Operate on device <ifname>", "<ifname>", true},
-
- {{"skb-mode", no_argument, NULL, 'S' },
- "Install XDP program in SKB (AKA generic) mode"},
-
- {{"native-mode", no_argument, NULL, 'N' },
- "Install XDP program in native mode"},
-
- {{"auto-mode", no_argument, NULL, 'A' },
- "Auto-detect SKB or native mode"},
-
- {{"force", no_argument, NULL, 'F' },
- "Force install, replacing existing program on interface"},
-
- {{"unload", no_argument, NULL, 'U' },
- "Unload XDP program instead of loading"},
-
- {{"reuse-maps", no_argument, NULL, 'M' },
- "Reuse pinned maps"},
-
- {{"quiet", no_argument, NULL, 'q' },
- "Quiet mode (no output)"},
-
- {{"filename", required_argument, NULL, 1 },
- "Load program from <file>", "<file>"},
-
- {{"progsec", required_argument, NULL, 2 },
- "Load program in <section> of the ELF file", "<section>"},
-
- {{0, 0, NULL, 0 }, NULL, false}
-};
-
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
-
-const char *pin_basedir = "/sys/fs/bpf";
-const char *map_name = "xdp_stats_map";
-
-/* Pinning maps under /sys/fs/bpf in subdir */
-int pin_maps_in_bpf_object(struct bpf_object *bpf_obj, struct config *cfg)
-{
- char map_filename[PATH_MAX];
- int err, len;
-
- len = snprintf(map_filename, PATH_MAX, "%s/%s/%s",
- pin_basedir, cfg->ifname, map_name);
- if (len < 0) {
- fprintf(stderr, "ERR: creating map_name\n");
- return EXIT_FAIL_OPTION;
- }
-
- /* Existing/previous XDP prog might not have cleaned up */
- if (access(map_filename, F_OK ) != -1 ) {
- if (verbose)
- printf(" - Unpinning (remove) prev maps in %s/\n",
- cfg->pin_dir);
-
- /* Basically calls unlink(3) on map_filename */
- err = bpf_object__unpin_maps(bpf_obj, cfg->pin_dir);
- if (err) {
- fprintf(stderr, "ERR: UNpinning maps in %s\n", cfg->pin_dir);
- return EXIT_FAIL_BPF;
- }
- }
- if (verbose)
- printf(" - Pinning maps in %s/\n", cfg->pin_dir);
-
- /* This will pin all maps in our bpf_object */
- err = bpf_object__pin_maps(bpf_obj, cfg->pin_dir);
- if (err)
- return EXIT_FAIL_BPF;
-
- return 0;
-}
-
-int main(int argc, char **argv)
-{
- struct bpf_object *bpf_obj;
- int err, len;
-
- struct config cfg = {
- .xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST | XDP_FLAGS_DRV_MODE,
- .ifindex = -1,
- .do_unload = false,
- };
- /* Set default BPF-ELF object file and BPF program name */
- strncpy(cfg.filename, default_filename, sizeof(cfg.filename));
- /* Cmdline options can change progsec */
- parse_cmdline_args(argc, argv, long_options, &cfg, __doc__);
-
- /* Required option */
- if (cfg.ifindex == -1) {
- fprintf(stderr, "ERR: required option --dev missing\n\n");
- usage(argv[0], __doc__, long_options, (argc == 1));
- return EXIT_FAIL_OPTION;
- }
- if (cfg.do_unload) {
- if (!cfg.reuse_maps) {
- /* TODO: Miss unpin of maps on unload */
- }
- return xdp_link_detach(cfg.ifindex, cfg.xdp_flags, 0);
- }
-
- len = snprintf(cfg.pin_dir, PATH_MAX, "%s/%s", pin_basedir, cfg.ifname);
- if (len < 0) {
- fprintf(stderr, "ERR: creating pin dirname\n");
- return EXIT_FAIL_OPTION;
- }
-
-
- bpf_obj = load_bpf_and_xdp_attach(&cfg);
- if (!bpf_obj)
- return EXIT_FAIL_BPF;
-
- if (verbose) {
- printf("Success: Loaded BPF-object(%s) and used section(%s)\n",
- cfg.filename, cfg.progsec);
- printf(" - XDP prog attached on device:%s(ifindex:%d)\n",
- cfg.ifname, cfg.ifindex);
- }
-
- /* Use the --dev name as subdir for exporting/pinning maps */
- if (!cfg.reuse_maps) {
- err = pin_maps_in_bpf_object(bpf_obj, &cfg);
- if (err) {
- fprintf(stderr, "ERR: pinning maps\n");
- return err;
- }
- }
-
- return EXIT_OK;
-}