From: "Mickaël Salaün" <mic@digikod.net>
To: linux-kernel@vger.kernel.org
Cc: "Mickaël Salaün" <mic@digikod.net>,
"Alexei Starovoitov" <ast@fb.com>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"David S . Miller" <davem@davemloft.net>,
"Wang Nan" <wangnan0@huawei.com>,
netdev@vger.kernel.org, "Shuah Khan" <shuah@kernel.org>
Subject: [PATCH net-next v5 04/11] bpf: Use bpf_load_program() from the library
Date: Fri, 10 Feb 2017 00:21:38 +0100 [thread overview]
Message-ID: <20170209232145.19085-5-mic@digikod.net> (raw)
In-Reply-To: <20170209232145.19085-1-mic@digikod.net>
Replace bpf_prog_load() with bpf_load_program() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
---
tools/lib/bpf/bpf.c | 6 +++---
tools/lib/bpf/bpf.h | 4 ++--
tools/testing/selftests/bpf/Makefile | 4 +++-
tools/testing/selftests/bpf/bpf_sys.h | 21 ---------------------
tools/testing/selftests/bpf/test_tag.c | 6 ++++--
tools/testing/selftests/bpf/test_verifier.c | 8 +++++---
6 files changed, 17 insertions(+), 32 deletions(-)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 3ddb58a36d3c..58ce252073fa 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -42,7 +42,7 @@
# endif
#endif
-static __u64 ptr_to_u64(void *ptr)
+static __u64 ptr_to_u64(const void *ptr)
{
return (__u64) (unsigned long) ptr;
}
@@ -69,8 +69,8 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size,
return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}
-int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
- size_t insns_cnt, char *license,
+int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+ size_t insns_cnt, const char *license,
__u32 kern_version, char *log_buf, size_t log_buf_sz)
{
int fd;
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index a2f9853dd882..bc959a2de023 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -28,8 +28,8 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
/* Recommend log buffer size */
#define BPF_LOG_BUF_SIZE 65536
-int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
- size_t insns_cnt, char *license,
+int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+ size_t insns_cnt, const char *license,
__u32 kern_version, char *log_buf,
size_t log_buf_sz);
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index f3d65ad53494..a35f564f66a1 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -1,4 +1,4 @@
-CFLAGS += -Wall -O2 -lcap -I../../../include/uapi
+CFLAGS += -Wall -O2 -lcap -I../../../include/uapi -I../../../lib
test_objs = test_verifier test_tag test_maps test_lru_map test_lpm_map
@@ -7,6 +7,8 @@ TEST_FILES := $(test_objs)
all: $(test_objs)
+$(test_objs): ../../../lib/bpf/bpf.o
+
include ../lib.mk
clean:
diff --git a/tools/testing/selftests/bpf/bpf_sys.h b/tools/testing/selftests/bpf/bpf_sys.h
index 6b4565f2a3f2..e7bbe3e5402e 100644
--- a/tools/testing/selftests/bpf/bpf_sys.h
+++ b/tools/testing/selftests/bpf/bpf_sys.h
@@ -84,25 +84,4 @@ static inline int bpf_map_create(enum bpf_map_type type, uint32_t size_key,
return bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
}
-static inline int bpf_prog_load(enum bpf_prog_type type,
- const struct bpf_insn *insns, size_t size_insns,
- const char *license, char *log, size_t size_log)
-{
- union bpf_attr attr = {};
-
- attr.prog_type = type;
- attr.insns = bpf_ptr_to_u64(insns);
- attr.insn_cnt = size_insns / sizeof(struct bpf_insn);
- attr.license = bpf_ptr_to_u64(license);
-
- if (size_log > 0) {
- attr.log_buf = bpf_ptr_to_u64(log);
- attr.log_size = size_log;
- attr.log_level = 1;
- log[0] = 0;
- }
-
- return bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
-}
-
#endif /* __BPF_SYS__ */
diff --git a/tools/testing/selftests/bpf/test_tag.c b/tools/testing/selftests/bpf/test_tag.c
index 5f7c602f47d1..dc209721ffd5 100644
--- a/tools/testing/selftests/bpf/test_tag.c
+++ b/tools/testing/selftests/bpf/test_tag.c
@@ -16,6 +16,8 @@
#include <linux/bpf.h>
#include <linux/if_alg.h>
+#include <bpf/bpf.h>
+
#include "../../../include/linux/filter.h"
#include "bpf_sys.h"
@@ -55,8 +57,8 @@ static int bpf_try_load_prog(int insns, int fd_map,
int fd_prog;
bpf_filler(insns, fd_map);
- fd_prog = bpf_prog_load(BPF_PROG_TYPE_SCHED_CLS, prog, insns *
- sizeof(struct bpf_insn), "", NULL, 0);
+ fd_prog = bpf_load_program(BPF_PROG_TYPE_SCHED_CLS, prog, insns, "", 0,
+ NULL, 0);
assert(fd_prog > 0);
if (fd_map > 0)
bpf_filler(insns, 0);
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 878bd60da376..247830ecf68e 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -24,6 +24,8 @@
#include <linux/bpf_perf_event.h>
#include <linux/bpf.h>
+#include <bpf/bpf.h>
+
#include "../../../include/linux/filter.h"
#include "bpf_sys.h"
@@ -4535,9 +4537,9 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3);
- fd_prog = bpf_prog_load(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
- prog, prog_len * sizeof(struct bpf_insn),
- "GPL", bpf_vlog, sizeof(bpf_vlog));
+ fd_prog = bpf_load_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
+ prog, prog_len, "GPL", 0, bpf_vlog,
+ sizeof(bpf_vlog));
expected_ret = unpriv && test->result_unpriv != UNDEF ?
test->result_unpriv : test->result;
--
2.11.0
next prev parent reply other threads:[~2017-02-09 23:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-09 23:21 [PATCH net-next v5 00/11] Improve BPF selftests and use the library (net-next tree) Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 01/11] tools: Sync {,tools/}include/uapi/linux/bpf.h Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 02/11] bpf: Change the include directory for selftest Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 03/11] bpf: Always test unprivileged programs Mickaël Salaün
2017-02-09 23:21 ` Mickaël Salaün [this message]
2017-02-10 2:25 ` [PATCH net-next v5 04/11] bpf: Use bpf_load_program() from the library Wangnan (F)
2017-02-10 2:39 ` Wangnan (F)
2017-02-09 23:21 ` [PATCH net-next v5 05/11] bpf: Use bpf_map_update_elem() " Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 06/11] bpf: Use bpf_map_lookup_elem() " Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 07/11] bpf: Use bpf_map_delete_elem() " Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 08/11] bpf: Use bpf_map_get_next_key() " Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 09/11] bpf: Use bpf_create_map() " Mickaël Salaün
2017-02-09 23:21 ` [PATCH net-next v5 10/11] bpf: Remove bpf_sys.h from selftests Mickaël Salaün
2017-02-10 2:30 ` Wangnan (F)
2017-02-09 23:21 ` [PATCH net-next v5 11/11] bpf: Add test_tag to .gitignore Mickaël Salaün
2017-02-10 20:56 ` [PATCH net-next v5 00/11] Improve BPF selftests and use the library (net-next tree) David Miller
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