diff options
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/Makefile | 3 | ||||
| -rw-r--r-- | samples/bpf/sock_flags.bpf.c | 47 | ||||
| -rw-r--r-- | samples/bpf/test_cgrp2_sock2.c | 95 | ||||
| -rwxr-xr-x | samples/bpf/test_cgrp2_sock2.sh | 103 |
4 files changed, 0 insertions, 248 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index f514c6fb1ae28..490833f8706a9 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -27,7 +27,6 @@ tprogs-y += map_perf_test tprogs-y += test_overhead tprogs-y += test_cgrp2_array_pin tprogs-y += test_cgrp2_attach -tprogs-y += test_cgrp2_sock2 tprogs-y += xdp_router_ipv4 tprogs-y += test_current_task_under_cgroup tprogs-y += trace_event @@ -75,7 +74,6 @@ map_perf_test-objs := map_perf_test_user.o test_overhead-objs := test_overhead_user.o test_cgrp2_array_pin-objs := test_cgrp2_array_pin.o test_cgrp2_attach-objs := test_cgrp2_attach.o -test_cgrp2_sock2-objs := test_cgrp2_sock2.o test_current_task_under_cgroup-objs := $(CGROUP_HELPERS) \ test_current_task_under_cgroup_user.o trace_event-objs := trace_event_user.o $(TRACE_HELPERS) @@ -106,7 +104,6 @@ always-y += tracex4.bpf.o always-y += tracex5.bpf.o always-y += tracex6.bpf.o always-y += tracex7.bpf.o -always-y += sock_flags.bpf.o always-y += test_probe_write_user.bpf.o always-y += trace_output.bpf.o always-y += tcbpf1_kern.o diff --git a/samples/bpf/sock_flags.bpf.c b/samples/bpf/sock_flags.bpf.c deleted file mode 100644 index 0da749f6a9e10..0000000000000 --- a/samples/bpf/sock_flags.bpf.c +++ /dev/null @@ -1,47 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include "vmlinux.h" -#include "net_shared.h" -#include <bpf/bpf_helpers.h> - -SEC("cgroup/sock") -int bpf_prog1(struct bpf_sock *sk) -{ - char fmt[] = "socket: family %d type %d protocol %d\n"; - char fmt2[] = "socket: uid %u gid %u\n"; - __u64 gid_uid = bpf_get_current_uid_gid(); - __u32 uid = gid_uid & 0xffffffff; - __u32 gid = gid_uid >> 32; - - bpf_trace_printk(fmt, sizeof(fmt), sk->family, sk->type, sk->protocol); - bpf_trace_printk(fmt2, sizeof(fmt2), uid, gid); - - /* block AF_INET6, SOCK_DGRAM, IPPROTO_ICMPV6 sockets - * ie., make ping6 fail - */ - if (sk->family == AF_INET6 && - sk->type == SOCK_DGRAM && - sk->protocol == IPPROTO_ICMPV6) - return 0; - - return 1; -} - -SEC("cgroup/sock") -int bpf_prog2(struct bpf_sock *sk) -{ - char fmt[] = "socket: family %d type %d protocol %d\n"; - - bpf_trace_printk(fmt, sizeof(fmt), sk->family, sk->type, sk->protocol); - - /* block AF_INET, SOCK_DGRAM, IPPROTO_ICMP sockets - * ie., make ping fail - */ - if (sk->family == AF_INET && - sk->type == SOCK_DGRAM && - sk->protocol == IPPROTO_ICMP) - return 0; - - return 1; -} - -char _license[] SEC("license") = "GPL"; diff --git a/samples/bpf/test_cgrp2_sock2.c b/samples/bpf/test_cgrp2_sock2.c deleted file mode 100644 index e7060aaa2f5a3..0000000000000 --- a/samples/bpf/test_cgrp2_sock2.c +++ /dev/null @@ -1,95 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* eBPF example program: - * - * - Loads eBPF program - * - * The eBPF program loads a filter from file and attaches the - * program to a cgroup using BPF_PROG_ATTACH - */ - -#define _GNU_SOURCE - -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <unistd.h> -#include <assert.h> -#include <errno.h> -#include <fcntl.h> -#include <net/if.h> -#include <linux/bpf.h> -#include <bpf/bpf.h> -#include <bpf/libbpf.h> - -#include "bpf_insn.h" - -static int usage(const char *argv0) -{ - printf("Usage: %s cg-path filter-path [filter-id]\n", argv0); - return EXIT_FAILURE; -} - -int main(int argc, char **argv) -{ - int cg_fd, err, ret = EXIT_FAILURE, filter_id = 0, prog_cnt = 0; - const char *link_pin_path = "/sys/fs/bpf/test_cgrp2_sock2"; - struct bpf_link *link = NULL; - struct bpf_program *progs[2]; - struct bpf_program *prog; - struct bpf_object *obj; - - if (argc < 3) - return usage(argv[0]); - - if (argc > 3) - filter_id = atoi(argv[3]); - - cg_fd = open(argv[1], O_DIRECTORY | O_RDONLY); - if (cg_fd < 0) { - printf("Failed to open cgroup path: '%s'\n", strerror(errno)); - return ret; - } - - obj = bpf_object__open_file(argv[2], NULL); - if (libbpf_get_error(obj)) { - printf("ERROR: opening BPF object file failed\n"); - return ret; - } - - bpf_object__for_each_program(prog, obj) { - progs[prog_cnt] = prog; - prog_cnt++; - } - - if (filter_id >= prog_cnt) { - printf("Invalid program id; program not found in file\n"); - goto cleanup; - } - - /* load BPF program */ - if (bpf_object__load(obj)) { - printf("ERROR: loading BPF object file failed\n"); - goto cleanup; - } - - link = bpf_program__attach_cgroup(progs[filter_id], cg_fd); - if (libbpf_get_error(link)) { - printf("ERROR: bpf_program__attach failed\n"); - link = NULL; - goto cleanup; - } - - err = bpf_link__pin(link, link_pin_path); - if (err < 0) { - printf("ERROR: bpf_link__pin failed: %d\n", err); - goto cleanup; - } - - ret = EXIT_SUCCESS; - -cleanup: - bpf_link__destroy(link); - bpf_object__close(obj); - return ret; -} diff --git a/samples/bpf/test_cgrp2_sock2.sh b/samples/bpf/test_cgrp2_sock2.sh deleted file mode 100755 index 82acff93d7397..0000000000000 --- a/samples/bpf/test_cgrp2_sock2.sh +++ /dev/null @@ -1,103 +0,0 @@ -#!/bin/bash -# SPDX-License-Identifier: GPL-2.0 - -BPFFS=/sys/fs/bpf -MY_DIR=$(dirname $0) -TEST=$MY_DIR/test_cgrp2_sock2 -LINK_PIN=$BPFFS/test_cgrp2_sock2 -BPF_PROG=$MY_DIR/sock_flags.bpf.o - -function config_device { - ip netns add at_ns0 - ip link add veth0 type veth peer name veth0b - ip link set veth0 netns at_ns0 - ip netns exec at_ns0 sysctl -q net.ipv6.conf.veth0.disable_ipv6=0 - ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0 - ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad - ip netns exec at_ns0 ip link set dev veth0 up - sysctl -q net.ipv6.conf.veth0b.disable_ipv6=0 - ip addr add 172.16.1.101/24 dev veth0b - ip addr add 2401:db00::2/64 dev veth0b nodad - ip link set veth0b up -} - -function config_cgroup { - rm -rf /tmp/cgroupv2 - mkdir -p /tmp/cgroupv2 - mount -t cgroup2 none /tmp/cgroupv2 - mkdir -p /tmp/cgroupv2/foo - echo $$ >> /tmp/cgroupv2/foo/cgroup.procs -} - -function config_bpffs { - if mount | grep $BPFFS > /dev/null; then - echo "bpffs already mounted" - else - echo "bpffs not mounted. Mounting..." - mount -t bpf none $BPFFS - fi -} - -function attach_bpf { - $TEST /tmp/cgroupv2/foo $BPF_PROG $1 - [ $? -ne 0 ] && exit 1 -} - -function cleanup { - rm -rf $LINK_PIN - ip link del veth0b - ip netns delete at_ns0 - umount /tmp/cgroupv2 - rm -rf /tmp/cgroupv2 -} - -cleanup 2>/dev/null - -set -e -config_device -config_cgroup -config_bpffs -set +e - -# -# Test 1 - fail ping6 -# -attach_bpf 0 -ping -c1 -w1 172.16.1.100 -if [ $? -ne 0 ]; then - echo "ping failed when it should succeed" - cleanup - exit 1 -fi - -ping6 -c1 -w1 2401:db00::1 -if [ $? -eq 0 ]; then - echo "ping6 succeeded when it should not" - cleanup - exit 1 -fi - -rm -rf $LINK_PIN -sleep 1 # Wait for link detach - -# -# Test 2 - fail ping -# -attach_bpf 1 -ping6 -c1 -w1 2401:db00::1 -if [ $? -ne 0 ]; then - echo "ping6 failed when it should succeed" - cleanup - exit 1 -fi - -ping -c1 -w1 172.16.1.100 -if [ $? -eq 0 ]; then - echo "ping succeeded when it should not" - cleanup - exit 1 -fi - -cleanup -echo -echo "*** PASS ***" |
