libbpf is nowadays widely available in all distros that enable BPF,
and it is a standalone library with a release cycle and a stable API.
Remove the old sync of bpf.c/bpf.h and check for the library via
pkg-config and use it instead.
Only a minor modification is needed to make it compile.
Signed-off-by: Luca Boccassi <bluca@xxxxxxxxxx>
---
NOTE: unfortunately I do not have IR capable hardware to use with Linux,
so I could only build-test this.
configure.ac | 3 +-
utils/keytable/Makefile.am | 5 +-
utils/keytable/bpf.c | 491 -------------------------------------
utils/keytable/bpf.h | 110 ---------
utils/keytable/bpf_load.c | 15 +-
utils/keytable/bpf_load.h | 2 -
utils/keytable/keytable.c | 2 +-
7 files changed, 14 insertions(+), 614 deletions(-)
delete mode 100644 utils/keytable/bpf.c
delete mode 100644 utils/keytable/bpf.h
diff --git a/configure.ac b/configure.ac
index c59d247e..5290fa01 100644
--- a/configure.ac
+++ b/configure.ac
@@ -556,7 +556,8 @@ AM_CONDITIONAL([WITH_V4L2_CTL_32], [test x${enable_v4l2_ctl_32} = xyes])
AM_CONDITIONAL([WITH_V4L2_COMPLIANCE], [test x$ac_cv_func_fork = xyes])
AM_CONDITIONAL([WITH_V4L2_COMPLIANCE_LIBV4L], [test x$ac_cv_func_fork = xyes -a x${enable_v4l2_compliance_libv4l} != xno])
AM_CONDITIONAL([WITH_V4L2_COMPLIANCE_32], [test x$ac_cv_func_fork = xyes -a x${enable_v4l2_compliance_32} = xyes])
-AM_CONDITIONAL([WITH_BPF], [test x$enable_bpf != xno -a x$libelf_pkgconfig = xyes -a x$CLANG = xclang])
+PKG_CHECK_MODULES([LIBBPF], [libbpf], [bpf_pc=yes], [bpf_pc=no])
+AM_CONDITIONAL([WITH_BPF], [test x$enable_bpf != xno -a x$libelf_pkgconfig = xyes -a x$CLANG = xclang -a x$bpf_pc = xyes])
# append -static to libtool compile and link command to enforce static libs
AS_IF([test x$enable_libdvbv5 = xno], [AC_SUBST([ENFORCE_LIBDVBV5_STATIC], ["-static"])])
diff --git a/utils/keytable/Makefile.am b/utils/keytable/Makefile.am
index a057eb89..c5eb414a 100644
--- a/utils/keytable/Makefile.am
+++ b/utils/keytable/Makefile.am
@@ -10,14 +10,15 @@ endif
ir_keytable_SOURCES = keytable.c parse.h ir-encode.c ir-encode.h toml.c toml.h keymap.c keymap.h
if WITH_BPF
-ir_keytable_SOURCES += bpf.c bpf_load.c bpf.h bpf_load.h
+ir_keytable_SOURCES += bpf_load.c bpf_load.h
endif
ir_keytable_LDADD = @LIBINTL@
ir_keytable_LDFLAGS = $(ARGP_LIBS)
if WITH_BPF
-ir_keytable_LDFLAGS += $(LIBELF_LIBS)
+ir_keytable_LDFLAGS += $(LIBELF_LIBS) $(LIBBPF_LIBS)
+ir_keytable_CFLAGS = $(LIBBPF_CFLAGS)
SUBDIRS = bpf_protocols
endif
diff --git a/utils/keytable/bpf.c b/utils/keytable/bpf.c
deleted file mode 100644
index 69ba190d..00000000
--- a/utils/keytable/bpf.c
+++ /dev/null
@@ -1,491 +0,0 @@
-// SPDX-License-Identifier: LGPL-2.1
-
-/*
- * common eBPF ELF operations.
- *
- * Copyright (C) 2013-2015 Alexei Starovoitov <ast@xxxxxxxxxx>
- * Copyright (C) 2015 Wang Nan <wangnan0@xxxxxxxxxx>
- * Copyright (C) 2015 Huawei Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License (not later!)
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses>
- */
-
-#include <stdlib.h>
-#include <memory.h>
-#include <unistd.h>
-#include <asm/unistd.h>
-#include <linux/bpf.h>
-#include "bpf.h"
-#include <errno.h>
-
-/*
- * When building perf, unistd.h is overridden. __NR_bpf is
- * required to be defined explicitly.
- */
-#ifndef __NR_bpf
-# if defined(__i386__)
-# define __NR_bpf 357
-# elif defined(__x86_64__)
-# define __NR_bpf 321
-# elif defined(__aarch64__)
-# define __NR_bpf 280
-# elif defined(__sparc__)
-# define __NR_bpf 349
-# elif defined(__s390__)
-# define __NR_bpf 351
-# else
-# error __NR_bpf not defined. libbpf does not support your arch.
-# endif
-#endif
-
-#ifndef min
-#define min(x, y) ((x) < (y) ? (x) : (y))
-#endif
-
-static inline __u64 ptr_to_u64(const void *ptr)
-{
- return (__u64) (unsigned long) ptr;
-}
-
-static inline int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr,
- unsigned int size)
-{
- return syscall(__NR_bpf, cmd, attr, size);
-}
-
-int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr)
-{
- __u32 name_len = create_attr->name ? strlen(create_attr->name) : 0;
- union bpf_attr attr = {};
-
- attr.map_type = create_attr->map_type;
- attr.key_size = create_attr->key_size;
- attr.value_size = create_attr->value_size;
- attr.max_entries = create_attr->max_entries;
- attr.map_flags = create_attr->map_flags;
- memcpy(attr.map_name, create_attr->name,
- min(name_len, BPF_OBJ_NAME_LEN - 1));
- attr.numa_node = create_attr->numa_node;
- attr.btf_fd = create_attr->btf_fd;
- attr.btf_key_type_id = create_attr->btf_key_type_id;
- attr.btf_value_type_id = create_attr->btf_value_type_id;
- attr.map_ifindex = create_attr->map_ifindex;
-
- return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
-}
-
-int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
- int key_size, int value_size, int max_entries,
- __u32 map_flags, int node)
-{
- struct bpf_create_map_attr map_attr = {};
-
- map_attr.name = name;
- map_attr.map_type = map_type;
- map_attr.map_flags = map_flags;
- map_attr.key_size = key_size;
- map_attr.value_size = value_size;
- map_attr.max_entries = max_entries;
- if (node >= 0) {
- map_attr.numa_node = node;
- map_attr.map_flags |= BPF_F_NUMA_NODE;
- }
-
- return bpf_create_map_xattr(&map_attr);
-}
-
-int bpf_create_map(enum bpf_map_type map_type, int key_size,
- int value_size, int max_entries, __u32 map_flags)
-{
- struct bpf_create_map_attr map_attr = {};
-
- map_attr.map_type = map_type;
- map_attr.map_flags = map_flags;
- map_attr.key_size = key_size;
- map_attr.value_size = value_size;
- map_attr.max_entries = max_entries;
-
- return bpf_create_map_xattr(&map_attr);
-}
-
-int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
- int key_size, int value_size, int max_entries,
- __u32 map_flags)
-{
- struct bpf_create_map_attr map_attr = {};
-
- map_attr.name = name;
- map_attr.map_type = map_type;
- map_attr.map_flags = map_flags;
- map_attr.key_size = key_size;
- map_attr.value_size = value_size;
- map_attr.max_entries = max_entries;
-
- return bpf_create_map_xattr(&map_attr);
-}
-
-int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
- int key_size, int inner_map_fd, int max_entries,
- __u32 map_flags, int node)
-{
- __u32 name_len = name ? strlen(name) : 0;
- union bpf_attr attr = {};
-
- attr.map_type = map_type;
- attr.key_size = key_size;
- attr.value_size = 4;
- attr.inner_map_fd = inner_map_fd;
- attr.max_entries = max_entries;
- attr.map_flags = map_flags;
- memcpy(attr.map_name, name, min(name_len, BPF_OBJ_NAME_LEN - 1));
-
- if (node >= 0) {
- attr.map_flags |= BPF_F_NUMA_NODE;
- attr.numa_node = node;
- }
-
- return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
-}
-
-int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
- int key_size, int inner_map_fd, int max_entries,
- __u32 map_flags)
-{
- return bpf_create_map_in_map_node(map_type, name, key_size,
- inner_map_fd, max_entries, map_flags,
- -1);
-}
-
-int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
- char *log_buf, size_t log_buf_sz)
-{
- union bpf_attr attr;
- __u32 name_len;
- int fd;
-
- if (!load_attr)
- return -EINVAL;
-
- name_len = load_attr->name ? strlen(load_attr->name) : 0;
-
- memset(&attr, 0, sizeof(attr));
- attr.prog_type = load_attr->prog_type;
- attr.expected_attach_type = load_attr->expected_attach_type;
- attr.insn_cnt = (__u32)load_attr->insns_cnt;
- attr.insns = ptr_to_u64(load_attr->insns);
- attr.license = ptr_to_u64(load_attr->license);
- attr.log_buf = ptr_to_u64(NULL);
- attr.log_size = 0;
- attr.log_level = 0;
- attr.kern_version = load_attr->kern_version;
- attr.prog_ifindex = load_attr->prog_ifindex;
- memcpy(attr.prog_name, load_attr->name,
- min(name_len, BPF_OBJ_NAME_LEN - 1));
-
- fd = sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
- if (fd >= 0 || !log_buf || !log_buf_sz)
- return fd;
-
- /* Try again with log */
- attr.log_buf = ptr_to_u64(log_buf);
- attr.log_size = log_buf_sz;
- attr.log_level = 1;
- log_buf[0] = 0;
- return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
-}
-
-int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
- size_t insns_cnt, const char *name, const char *license,
- __u32 kern_version, char *log_buf,
- size_t log_buf_sz)
-{
- struct bpf_load_program_attr load_attr = {};
-
- load_attr.prog_type = type;
- load_attr.expected_attach_type = 0;
- load_attr.name = name;
- load_attr.insns = insns;
- load_attr.insns_cnt = insns_cnt;
- load_attr.license = license;
- load_attr.kern_version = kern_version;
-
- return bpf_load_program_xattr(&load_attr, log_buf, log_buf_sz);
-}
-
-int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
- size_t insns_cnt, int strict_alignment,
- const char *license, __u32 kern_version,
- char *log_buf, size_t log_buf_sz, int log_level)
-{
- union bpf_attr attr = {};
-
- attr.prog_type = type;
- attr.insn_cnt = (__u32)insns_cnt;
- attr.insns = ptr_to_u64(insns);
- attr.license = ptr_to_u64(license);
- attr.log_buf = ptr_to_u64(log_buf);
- attr.log_size = log_buf_sz;
- attr.log_level = log_level;
- log_buf[0] = 0;
- attr.kern_version = kern_version;
- attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0;
-
- return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
-}
-
-int bpf_map_update_elem(int fd, const void *key, const void *value,
- __u64 flags)
-{
- union bpf_attr attr = {};
-
- attr.map_fd = fd;
- attr.key = ptr_to_u64(key);
- attr.value = ptr_to_u64(value);
- attr.flags = flags;
-
- return sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr));
-}
-
-int bpf_map_lookup_elem(int fd, const void *key, void *value)
-{
- union bpf_attr attr = {};
-
- attr.map_fd = fd;
- attr.key = ptr_to_u64(key);
- attr.value = ptr_to_u64(value);
-
- return sys_bpf(BPF_MAP_LOOKUP_ELEM, &attr, sizeof(attr));
-}
-
-int bpf_map_delete_elem(int fd, const void *key)
-{
- union bpf_attr attr = {};
-
- attr.map_fd = fd;
- attr.key = ptr_to_u64(key);
-
- return sys_bpf(BPF_MAP_DELETE_ELEM, &attr, sizeof(attr));
-}
-
-int bpf_map_get_next_key(int fd, const void *key, void *next_key)
-{
- union bpf_attr attr = {};
-
- attr.map_fd = fd;
- attr.key = ptr_to_u64(key);
- attr.next_key = ptr_to_u64(next_key);
-
- return sys_bpf(BPF_MAP_GET_NEXT_KEY, &attr, sizeof(attr));
-}
-
-int bpf_obj_pin(int fd, const char *pathname)
-{
- union bpf_attr attr = {};
-
- attr.pathname = ptr_to_u64((void *)pathname);
- attr.bpf_fd = fd;
-
- return sys_bpf(BPF_OBJ_PIN, &attr, sizeof(attr));
-}
-
-int bpf_obj_get(const char *pathname)
-{
- union bpf_attr attr = {};
-
- attr.pathname = ptr_to_u64((void *)pathname);
-
- return sys_bpf(BPF_OBJ_GET, &attr, sizeof(attr));
-}
-
-int bpf_prog_attach(int prog_fd, int target_fd, enum bpf_attach_type type,
- unsigned int flags)
-{
- union bpf_attr attr = {};
-
- attr.target_fd = target_fd;
- attr.attach_bpf_fd = prog_fd;
- attr.attach_type = type;
- attr.attach_flags = flags;
-
- return sys_bpf(BPF_PROG_ATTACH, &attr, sizeof(attr));
-}
-
-int bpf_prog_detach(int target_fd, enum bpf_attach_type type)
-{
- union bpf_attr attr = {};
-
- attr.target_fd = target_fd;
- attr.attach_type = type;
-
- return sys_bpf(BPF_PROG_DETACH, &attr, sizeof(attr));
-}
-
-int bpf_prog_detach2(int prog_fd, int target_fd, enum bpf_attach_type type)
-{
- union bpf_attr attr = {};
-
- attr.target_fd = target_fd;
- attr.attach_bpf_fd = prog_fd;
- attr.attach_type = type;
-
- return sys_bpf(BPF_PROG_DETACH, &attr, sizeof(attr));
-}
-
-int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
- __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt)
-{
- union bpf_attr attr = {};
- int ret;
-
- attr.query.target_fd = target_fd;
- attr.query.attach_type = type;
- attr.query.query_flags = query_flags;
- attr.query.prog_cnt = *prog_cnt;
- attr.query.prog_ids = ptr_to_u64(prog_ids);
-
- ret = sys_bpf(BPF_PROG_QUERY, &attr, sizeof(attr));
- if (attach_flags)
- *attach_flags = attr.query.attach_flags;
- *prog_cnt = attr.query.prog_cnt;
- return ret;
-}
-
-int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
- void *data_out, __u32 *size_out, __u32 *retval,
- __u32 *duration)
-{
- union bpf_attr attr = {};
- int ret;
-
- attr.test.prog_fd = prog_fd;
- attr.test.data_in = ptr_to_u64(data);
- attr.test.data_out = ptr_to_u64(data_out);
- attr.test.data_size_in = size;
- attr.test.repeat = repeat;
-
- ret = sys_bpf(BPF_PROG_TEST_RUN, &attr, sizeof(attr));
- if (size_out)
- *size_out = attr.test.data_size_out;
- if (retval)
- *retval = attr.test.retval;
- if (duration)
- *duration = attr.test.duration;
- return ret;
-}
-
-int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id)
-{
- union bpf_attr attr = {};
- int err;
-
- attr.start_id = start_id;
-
- err = sys_bpf(BPF_PROG_GET_NEXT_ID, &attr, sizeof(attr));
- if (!err)
- *next_id = attr.next_id;
-
- return err;
-}
-
-int bpf_map_get_next_id(__u32 start_id, __u32 *next_id)
-{
- union bpf_attr attr = {};
- int err;
-
- attr.start_id = start_id;
-
- err = sys_bpf(BPF_MAP_GET_NEXT_ID, &attr, sizeof(attr));
- if (!err)
- *next_id = attr.next_id;
-
- return err;
-}
-
-int bpf_prog_get_fd_by_id(__u32 id)
-{
- union bpf_attr attr = {};
-
- attr.prog_id = id;
-
- return sys_bpf(BPF_PROG_GET_FD_BY_ID, &attr, sizeof(attr));
-}
-
-int bpf_map_get_fd_by_id(__u32 id)
-{
- union bpf_attr attr = {};
-
- attr.map_id = id;
-
- return sys_bpf(BPF_MAP_GET_FD_BY_ID, &attr, sizeof(attr));
-}
-
-int bpf_btf_get_fd_by_id(__u32 id)
-{
- union bpf_attr attr = {};
-
- attr.btf_id = id;
-
- return sys_bpf(BPF_BTF_GET_FD_BY_ID, &attr, sizeof(attr));
-}
-
-int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len)
-{
- union bpf_attr attr = {};
- int err;
-
- attr.info.bpf_fd = prog_fd;
- attr.info.info_len = *info_len;
- attr.info.info = ptr_to_u64(info);
-
- err = sys_bpf(BPF_OBJ_GET_INFO_BY_FD, &attr, sizeof(attr));
- if (!err)
- *info_len = attr.info.info_len;
-
- return err;
-}
-
-int bpf_raw_tracepoint_open(const char *name, int prog_fd)
-{
- union bpf_attr attr = {};
-
- attr.raw_tracepoint.name = ptr_to_u64(name);
- attr.raw_tracepoint.prog_fd = prog_fd;
-
- return sys_bpf(BPF_RAW_TRACEPOINT_OPEN, &attr, sizeof(attr));
-}
-
-int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
- bool do_log)
-{
- union bpf_attr attr = {};
- int fd;
-
- attr.btf = ptr_to_u64(btf);
- attr.btf_size = btf_size;
-
-retry:
- if (do_log && log_buf && log_buf_size) {
- attr.btf_log_level = 1;
- attr.btf_log_size = log_buf_size;
- attr.btf_log_buf = ptr_to_u64(log_buf);
- }
-
- fd = sys_bpf(BPF_BTF_LOAD, &attr, sizeof(attr));
- if (fd == -1 && !do_log && log_buf && log_buf_size) {
- do_log = true;
- goto retry;
- }
-
- return fd;
-}
diff --git a/utils/keytable/bpf.h b/utils/keytable/bpf.h
deleted file mode 100644
index fb3896c9..00000000
--- a/utils/keytable/bpf.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1 */
-
-/*
- * common eBPF ELF operations.
- *
- * Copyright (C) 2013-2015 Alexei Starovoitov <ast@xxxxxxxxxx>
- * Copyright (C) 2015 Wang Nan <wangnan0@xxxxxxxxxx>
- * Copyright (C) 2015 Huawei Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License (not later!)
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see <http://www.gnu.org/licenses>
- */
-#ifndef __BPF_BPF_H
-#define __BPF_BPF_H
-
-#include <linux/bpf.h>
-#include <stdbool.h>
-#include <stddef.h>
-
-struct bpf_create_map_attr {
- const char *name;
- enum bpf_map_type map_type;
- __u32 map_flags;
- __u32 key_size;
- __u32 value_size;
- __u32 max_entries;
- __u32 numa_node;
- __u32 btf_fd;
- __u32 btf_key_type_id;
- __u32 btf_value_type_id;
- __u32 map_ifindex;
-};
-
-int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
-int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
- int key_size, int value_size, int max_entries,
- __u32 map_flags, int node);
-int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
- int key_size, int value_size, int max_entries,
- __u32 map_flags);
-int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
- int max_entries, __u32 map_flags);
-int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
- int key_size, int inner_map_fd, int max_entries,
- __u32 map_flags, int node);
-int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
- int key_size, int inner_map_fd, int max_entries,
- __u32 map_flags);
-
-struct bpf_load_program_attr {
- enum bpf_prog_type prog_type;
- enum bpf_attach_type expected_attach_type;
- const char *name;
- const struct bpf_insn *insns;
- size_t insns_cnt;
- const char *license;
- __u32 kern_version;
- __u32 prog_ifindex;
-};
-
-/* Recommend log buffer size */
-#define BPF_LOG_BUF_SIZE (256 * 1024)
-int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
- char *log_buf, size_t log_buf_sz);
-int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
- size_t insns_cnt, const char *name, const char *license,
- __u32 kern_version, char *log_buf,
- size_t log_buf_sz);
-int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
- size_t insns_cnt, int strict_alignment,
- const char *license, __u32 kern_version,
- char *log_buf, size_t log_buf_sz, int log_level);
-
-int bpf_map_update_elem(int fd, const void *key, const void *value,
- __u64 flags);
-
-int bpf_map_lookup_elem(int fd, const void *key, void *value);
-int bpf_map_delete_elem(int fd, const void *key);
-int bpf_map_get_next_key(int fd, const void *key, void *next_key);
-int bpf_obj_pin(int fd, const char *pathname);
-int bpf_obj_get(const char *pathname);
-int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
- unsigned int flags);
-int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
-int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type);
-int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
- void *data_out, __u32 *size_out, __u32 *retval,
- __u32 *duration);
-int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
-int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
-int bpf_prog_get_fd_by_id(__u32 id);
-int bpf_map_get_fd_by_id(__u32 id);
-int bpf_btf_get_fd_by_id(__u32 id);
-int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
-int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
- __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt);
-int bpf_raw_tracepoint_open(const char *name, int prog_fd);
-int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
- bool do_log);
-#endif
diff --git a/utils/keytable/bpf_load.c b/utils/keytable/bpf_load.c
index 7ae9af4a..ec6eb98e 100644
--- a/utils/keytable/bpf_load.c
+++ b/utils/keytable/bpf_load.c
@@ -12,10 +12,10 @@
#include <limits.h>
#include <stdlib.h>
#include <linux/bpf.h>
+#include <bpf/bpf.h>
#include <assert.h>
#include <argp.h>
#include "keymap.h"
-#include "bpf.h"
#include "bpf_load.h"
#ifdef ENABLE_NLS
@@ -28,6 +28,8 @@
# define _(string) string
#endif
+#define LOG_BUF_SIZE (256 * 1024)
+
// This should match the struct in the raw BPF decoder
struct raw_pattern {
unsigned int scancode;
@@ -39,7 +41,7 @@ struct raw_pattern {
int max_length;
int trail_space;
-char bpf_log_buf[BPF_LOG_BUF_SIZE];
+char bpf_log_buf[LOG_BUF_SIZE];
extern int debug;
struct bpf_file {
@@ -58,14 +60,14 @@ struct bpf_file {
struct protocol_param *param;
};
-static int load_and_attach(int lirc_fd, struct bpf_file *bpf_file, const char *name, struct bpf_insn *prog, int size)
+static int load_and_attach(int lirc_fd, struct bpf_file *bpf_file, struct bpf_insn *prog, int size)
{
size_t insns_cnt = size / sizeof(struct bpf_insn);
int fd, err;
fd = bpf_load_program(BPF_PROG_TYPE_LIRC_MODE2, prog, insns_cnt,
- name, bpf_file->license, 0,
- bpf_log_buf, BPF_LOG_BUF_SIZE);
+ bpf_file->license, 0,
+ bpf_log_buf, LOG_BUF_SIZE);
if (fd < 0) {
printf("bpf_load_program() err=%m\n%s", bpf_log_buf);
return -1;
@@ -548,8 +550,7 @@ int load_bpf_file(const char *path, int lirc_fd, struct protocol_param *param,
!(shdr.sh_flags & SHF_EXECINSTR))
continue;
- ret = load_and_attach(lirc_fd, &bpf_file, shname, data->d_buf,
- data->d_size);
+ ret = load_and_attach(lirc_fd, &bpf_file, data->d_buf, data->d_size);
break;
}
diff --git a/utils/keytable/bpf_load.h b/utils/keytable/bpf_load.h
index 47b57b25..fe0b3e58 100644
--- a/utils/keytable/bpf_load.h
+++ b/utils/keytable/bpf_load.h
@@ -2,8 +2,6 @@
#ifndef __BPF_LOAD_H
#define __BPF_LOAD_H
-#define BPF_LOG_BUF_SIZE (256 * 1024)
-
#define MAX_MAPS 32
#define MAX_PROGS 64
diff --git a/utils/keytable/keytable.c b/utils/keytable/keytable.c
index cb91f1f0..248493a9 100644
--- a/utils/keytable/keytable.c
+++ b/utils/keytable/keytable.c
@@ -37,7 +37,7 @@
#include "keymap.h"
#ifdef HAVE_BPF
-#include "bpf.h"
+#include <bpf/bpf.h>
#include "bpf_load.h"
#endif
--
2.29.2
