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path: root/samples/bpf/xdp_sample_pkts_user.c
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Diffstat (limited to 'samples/bpf/xdp_sample_pkts_user.c')
-rw-r--r--samples/bpf/xdp_sample_pkts_user.c43
1 files changed, 18 insertions, 25 deletions
diff --git a/samples/bpf/xdp_sample_pkts_user.c b/samples/bpf/xdp_sample_pkts_user.c
index 991ef6f0880b..7df7163239ac 100644
--- a/samples/bpf/xdp_sample_pkts_user.c
+++ b/samples/bpf/xdp_sample_pkts_user.c
@@ -12,13 +12,11 @@
#include <signal.h>
#include <bpf/libbpf.h>
#include <bpf/bpf.h>
-#include <sys/resource.h>
#include <libgen.h>
#include <linux/if_link.h>
#include "perf-sys.h"
-#define MAX_CPUS 128
static int if_idx;
static char *if_name;
static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
@@ -31,7 +29,7 @@ static int do_attach(int idx, int fd, const char *name)
__u32 info_len = sizeof(info);
int err;
- err = bpf_set_link_xdp_fd(idx, fd, xdp_flags);
+ err = bpf_xdp_attach(idx, fd, xdp_flags, NULL);
if (err < 0) {
printf("ERROR: failed to attach program to %s\n", name);
return err;
@@ -52,13 +50,13 @@ static int do_detach(int idx, const char *name)
__u32 curr_prog_id = 0;
int err = 0;
- err = bpf_get_link_xdp_id(idx, &curr_prog_id, xdp_flags);
+ err = bpf_xdp_query_id(idx, xdp_flags, &curr_prog_id);
if (err) {
- printf("bpf_get_link_xdp_id failed\n");
+ printf("bpf_xdp_query_id failed\n");
return err;
}
if (prog_id == curr_prog_id) {
- err = bpf_set_link_xdp_fd(idx, -1, xdp_flags);
+ err = bpf_xdp_detach(idx, xdp_flags, NULL);
if (err < 0)
printf("ERROR: failed to detach prog from %s\n", name);
} else if (!curr_prog_id) {
@@ -104,19 +102,16 @@ static void usage(const char *prog)
fprintf(stderr,
"%s: %s [OPTS] <ifname|ifindex>\n\n"
"OPTS:\n"
- " -F force loading prog\n",
+ " -F force loading prog\n"
+ " -S use skb-mode\n",
__func__, 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 perf_buffer_opts pb_opts = {};
const char *optstr = "FS";
int prog_fd, map_fd, opt;
+ struct bpf_program *prog;
struct bpf_object *obj;
struct bpf_map *map;
char filename[256];
@@ -144,23 +139,22 @@ int main(int argc, char **argv)
return 1;
}
- if (setrlimit(RLIMIT_MEMLOCK, &r)) {
- perror("setrlimit(RLIMIT_MEMLOCK)");
- 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))
+ obj = bpf_object__open_file(filename, NULL);
+ if (libbpf_get_error(obj))
return 1;
- if (!prog_fd) {
- printf("bpf_prog_load_xattr: %s\n", strerror(errno));
+ prog = bpf_object__next_program(obj, NULL);
+ bpf_program__set_type(prog, BPF_PROG_TYPE_XDP);
+
+ err = bpf_object__load(obj);
+ if (err)
return 1;
- }
- map = bpf_map__next(NULL, obj);
+ prog_fd = bpf_program__fd(prog);
+
+ map = bpf_object__next_map(obj, NULL);
if (!map) {
printf("finding a map in obj file failed\n");
return 1;
@@ -187,8 +181,7 @@ int main(int argc, char **argv)
return 1;
}
- pb_opts.sample_cb = print_bpf_output;
- pb = perf_buffer__new(map_fd, 8, &pb_opts);
+ pb = perf_buffer__new(map_fd, 8, print_bpf_output, NULL, NULL, NULL);
err = libbpf_get_error(pb);
if (err) {
perror("perf_buffer setup failed");