diff options
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/Makefile | 6 | ||||
| -rw-r--r-- | samples/bpf/fds_example.c | 10 | ||||
| -rw-r--r-- | samples/bpf/sockex1_user.c | 23 | ||||
| -rw-r--r-- | samples/bpf/sockex2_user.c | 21 |
4 files changed, 35 insertions, 25 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 4dd98100678e..0c62ac39c697 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -59,9 +59,9 @@ LIBBPF = $(TOOLS_PATH)/lib/bpf/libbpf.a CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o TRACE_HELPERS := ../../tools/testing/selftests/bpf/trace_helpers.o -fds_example-objs := bpf_load.o fds_example.o -sockex1-objs := bpf_load.o sockex1_user.o -sockex2-objs := bpf_load.o sockex2_user.o +fds_example-objs := fds_example.o +sockex1-objs := sockex1_user.o +sockex2-objs := sockex2_user.o sockex3-objs := bpf_load.o sockex3_user.o tracex1-objs := bpf_load.o tracex1_user.o tracex2-objs := bpf_load.o tracex2_user.o diff --git a/samples/bpf/fds_example.c b/samples/bpf/fds_example.c index 9854854f05d1..e51eb060244e 100644 --- a/samples/bpf/fds_example.c +++ b/samples/bpf/fds_example.c @@ -14,8 +14,8 @@ #include <bpf/bpf.h> +#include "bpf/libbpf.h" #include "bpf_insn.h" -#include "bpf_load.h" #include "sock_example.h" #define BPF_F_PIN (1 << 0) @@ -57,10 +57,14 @@ static int bpf_prog_create(const char *object) BPF_EXIT_INSN(), }; size_t insns_cnt = sizeof(insns) / sizeof(struct bpf_insn); + char bpf_log_buf[BPF_LOG_BUF_SIZE]; + struct bpf_object *obj; + int prog_fd; if (object) { - assert(!load_bpf_file((char *)object)); - return prog_fd[0]; + assert(!bpf_prog_load(object, BPF_PROG_TYPE_UNSPEC, + &obj, &prog_fd)); + return prog_fd; } else { return bpf_load_program(BPF_PROG_TYPE_SOCKET_FILTER, insns, insns_cnt, "GPL", 0, diff --git a/samples/bpf/sockex1_user.c b/samples/bpf/sockex1_user.c index be8ba5686924..7f90796ae15a 100644 --- a/samples/bpf/sockex1_user.c +++ b/samples/bpf/sockex1_user.c @@ -3,28 +3,31 @@ #include <assert.h> #include <linux/bpf.h> #include <bpf/bpf.h> -#include "bpf_load.h" +#include "bpf/libbpf.h" #include "sock_example.h" #include <unistd.h> #include <arpa/inet.h> int main(int ac, char **argv) { + struct bpf_object *obj; + int map_fd, prog_fd; char filename[256]; - FILE *f; int i, sock; + FILE *f; snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); - if (load_bpf_file(filename)) { - printf("%s", bpf_log_buf); + if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER, + &obj, &prog_fd)) return 1; - } + + map_fd = bpf_object__find_map_fd_by_name(obj, "my_map"); sock = open_raw_sock("lo"); - assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, - sizeof(prog_fd[0])) == 0); + assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, + sizeof(prog_fd)) == 0); f = popen("ping -4 -c5 localhost", "r"); (void) f; @@ -34,13 +37,13 @@ int main(int ac, char **argv) int key; key = IPPROTO_TCP; - assert(bpf_map_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0); + assert(bpf_map_lookup_elem(map_fd, &key, &tcp_cnt) == 0); key = IPPROTO_UDP; - assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0); + assert(bpf_map_lookup_elem(map_fd, &key, &udp_cnt) == 0); key = IPPROTO_ICMP; - assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0); + assert(bpf_map_lookup_elem(map_fd, &key, &icmp_cnt) == 0); printf("TCP %lld UDP %lld ICMP %lld bytes\n", tcp_cnt, udp_cnt, icmp_cnt); diff --git a/samples/bpf/sockex2_user.c b/samples/bpf/sockex2_user.c index 125ee6efc913..bc257333ad92 100644 --- a/samples/bpf/sockex2_user.c +++ b/samples/bpf/sockex2_user.c @@ -3,7 +3,7 @@ #include <assert.h> #include <linux/bpf.h> #include <bpf/bpf.h> -#include "bpf_load.h" +#include "bpf/libbpf.h" #include "sock_example.h" #include <unistd.h> #include <arpa/inet.h> @@ -17,22 +17,25 @@ struct pair { int main(int ac, char **argv) { struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; + struct bpf_object *obj; + int map_fd, prog_fd; char filename[256]; - FILE *f; int i, sock; + FILE *f; snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); setrlimit(RLIMIT_MEMLOCK, &r); - if (load_bpf_file(filename)) { - printf("%s", bpf_log_buf); + if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER, + &obj, &prog_fd)) return 1; - } + + map_fd = bpf_object__find_map_fd_by_name(obj, "hash_map"); sock = open_raw_sock("lo"); - assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, - sizeof(prog_fd[0])) == 0); + assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, + sizeof(prog_fd)) == 0); f = popen("ping -4 -c5 localhost", "r"); (void) f; @@ -41,8 +44,8 @@ int main(int ac, char **argv) int key = 0, next_key; struct pair value; - while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) { - bpf_map_lookup_elem(map_fd[0], &next_key, &value); + while (bpf_map_get_next_key(map_fd, &key, &next_key) == 0) { + bpf_map_lookup_elem(map_fd, &next_key, &value); printf("ip %s bytes %lld packets %lld\n", inet_ntoa((struct in_addr){htonl(next_key)}), value.bytes, value.packets); |