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authorChristian Poessinger <christian@poessinger.com>2021-03-14 20:12:34 +0100
committerChristian Poessinger <christian@poessinger.com>2021-03-14 20:12:34 +0100
commit85ff856a32ccb5bc20604bacfb4fa5cb66375487 (patch)
tree9fa6fa4ef84c39dae14accc018187fce57fd91e2 /src/xdp/xdp_prog_user.c
parent59ad580cdea2e66e24470ee3d84f29a8619b7bf9 (diff)
downloadvyos-1x-85ff856a32ccb5bc20604bacfb4fa5cb66375487.tar.gz
vyos-1x-85ff856a32ccb5bc20604bacfb4fa5cb66375487.zip
xdp: T2666: remove entire XDP code for 1.3 LTS image
This is an extension to commit 801c5235 ("xdp: T2666: disable this highly experimental feature in 1.3 LTS") by dropping all XDP references in the equuleus codebase.
Diffstat (limited to 'src/xdp/xdp_prog_user.c')
-rw-r--r--src/xdp/xdp_prog_user.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/src/xdp/xdp_prog_user.c b/src/xdp/xdp_prog_user.c
deleted file mode 100644
index c47d2977d..000000000
--- a/src/xdp/xdp_prog_user.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-static const char *__doc__ = "XDP redirect helper\n"
- " - Allows to populate/query tx_port and redirect_params maps\n";
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <getopt.h>
-#include <stdbool.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_ether.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"
-
-#include "common/xdp_stats_kern_user.h"
-
-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},
-
- {{"redirect-dev", required_argument, NULL, 'r' },
- "Redirect to device <ifname>", "<ifname>", true},
-
- {{"src-mac", required_argument, NULL, 'L' },
- "Source MAC address of <dev>", "<mac>", true },
-
- {{"dest-mac", required_argument, NULL, 'R' },
- "Destination MAC address of <redirect-dev>", "<mac>", true },
-
- {{"quiet", no_argument, NULL, 'q' },
- "Quiet mode (no output)"},
-
- {{0, 0, NULL, 0 }, NULL, false}
-};
-
-static int parse_u8(char *str, unsigned char *x)
-{
- unsigned long z;
-
- z = strtoul(str, 0, 16);
- if (z > 0xff)
- return -1;
-
- if (x)
- *x = z;
-
- return 0;
-}
-
-static int parse_mac(char *str, unsigned char mac[ETH_ALEN])
-{
- if (parse_u8(str, &mac[0]) < 0)
- return -1;
- if (parse_u8(str + 3, &mac[1]) < 0)
- return -1;
- if (parse_u8(str + 6, &mac[2]) < 0)
- return -1;
- if (parse_u8(str + 9, &mac[3]) < 0)
- return -1;
- if (parse_u8(str + 12, &mac[4]) < 0)
- return -1;
- if (parse_u8(str + 15, &mac[5]) < 0)
- return -1;
-
- return 0;
-}
-
-static int write_iface_params(int map_fd, unsigned char *src, unsigned char *dest)
-{
- if (bpf_map_update_elem(map_fd, src, dest, 0) < 0) {
- fprintf(stderr,
- "WARN: Failed to update bpf map file: err(%d):%s\n",
- errno, strerror(errno));
- return -1;
- }
-
- printf("forward: %02x:%02x:%02x:%02x:%02x:%02x -> %02x:%02x:%02x:%02x:%02x:%02x\n",
- src[0], src[1], src[2], src[3], src[4], src[5],
- dest[0], dest[1], dest[2], dest[3], dest[4], dest[5]
- );
-
- return 0;
-}
-
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
-
-const char *pin_basedir = "/sys/fs/bpf";
-
-int main(int argc, char **argv)
-{
- int i;
- int len;
- int map_fd;
- bool redirect_map;
- char pin_dir[PATH_MAX];
- unsigned char src[ETH_ALEN];
- unsigned char dest[ETH_ALEN];
-
- struct config cfg = {
- .ifindex = -1,
- .redirect_ifindex = -1,
- };
-
- /* Cmdline options can change progsec */
- parse_cmdline_args(argc, argv, long_options, &cfg, __doc__);
-
- redirect_map = (cfg.ifindex > 0) && (cfg.redirect_ifindex > 0);
-
- if (cfg.redirect_ifindex > 0 && cfg.ifindex == -1) {
- fprintf(stderr, "ERR: required option --dev missing\n\n");
- usage(argv[0], __doc__, long_options, (argc == 1));
- return EXIT_FAIL_OPTION;
- }
-
- len = snprintf(pin_dir, PATH_MAX, "%s/%s", pin_basedir, cfg.ifname);
- if (len < 0) {
- fprintf(stderr, "ERR: creating pin dirname\n");
- return EXIT_FAIL_OPTION;
- }
-
- if (parse_mac(cfg.src_mac, src) < 0) {
- fprintf(stderr, "ERR: can't parse mac address %s\n", cfg.src_mac);
- return EXIT_FAIL_OPTION;
- }
-
- if (parse_mac(cfg.dest_mac, dest) < 0) {
- fprintf(stderr, "ERR: can't parse mac address %s\n", cfg.dest_mac);
- return EXIT_FAIL_OPTION;
- }
-
- /* Open the tx_port map corresponding to the cfg.ifname interface */
- map_fd = open_bpf_map_file(pin_dir, "tx_port", NULL);
- if (map_fd < 0) {
- return EXIT_FAIL_BPF;
- }
-
- printf("map dir: %s\n", pin_dir);
-
- if (redirect_map) {
- /* setup a virtual port for the static redirect */
- i = 0;
- bpf_map_update_elem(map_fd, &i, &cfg.redirect_ifindex, 0);
- printf("redirect from ifnum=%d to ifnum=%d\n", cfg.ifindex, cfg.redirect_ifindex);
-
- /* Open the redirect_params map */
- map_fd = open_bpf_map_file(pin_dir, "redirect_params", NULL);
- if (map_fd < 0) {
- return EXIT_FAIL_BPF;
- }
-
- /* Setup the mapping containing MAC addresses */
- if (write_iface_params(map_fd, src, dest) < 0) {
- fprintf(stderr, "can't write iface params\n");
- return 1;
- }
- } else {
- /* setup 1-1 mapping for the dynamic router */
- for (i = 1; i < 256; ++i)
- bpf_map_update_elem(map_fd, &i, &i, 0);
- }
-
- return EXIT_OK;
-}