forked from Minki/linux
9742da0150
Add more BPF map operations to libbpf. Also add bpf_obj_{pin,get}(). They can be used on not only BPF maps but also BPF programs. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-2-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/*
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* common eBPF ELF operations.
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*
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* Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
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* Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
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* Copyright (C) 2015 Huawei Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License (not later!)
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses>
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*/
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#ifndef __BPF_BPF_H
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#define __BPF_BPF_H
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#include <linux/bpf.h>
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int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
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int max_entries);
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/* Recommend log buffer size */
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#define BPF_LOG_BUF_SIZE 65536
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int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
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size_t insns_cnt, char *license,
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u32 kern_version, char *log_buf,
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size_t log_buf_sz);
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int bpf_map_update_elem(int fd, void *key, void *value,
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u64 flags);
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int bpf_map_lookup_elem(int fd, void *key, void *value);
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int bpf_map_delete_elem(int fd, void *key);
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int bpf_map_get_next_key(int fd, void *key, void *next_key);
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int bpf_obj_pin(int fd, const char *pathname);
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int bpf_obj_get(const char *pathname);
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#endif
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