45 lines
921 B
C
45 lines
921 B
C
/*
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* Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "defs.h"
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#include DEF_MPERS_TYPE(struct_sock_fprog)
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#include <linux/filter.h>
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typedef struct sock_fprog struct_sock_fprog;
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#include MPERS_DEFS
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#include "bpf_fprog.h"
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MPERS_PRINTER_DECL(unsigned int, get_sock_fprog_size, void)
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{
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return sizeof(struct_sock_fprog);
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}
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MPERS_PRINTER_DECL(bool, fetch_bpf_fprog, struct tcb *const tcp,
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const kernel_ulong_t addr, void *const p)
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{
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struct bpf_fprog *pfp = p;
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struct_sock_fprog mfp;
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if ((sizeof(*pfp) == sizeof(mfp))
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&& (offsetof(struct bpf_fprog, filter) ==
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offsetof(struct_sock_fprog, filter)))
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return !umove_or_printaddr(tcp, addr, pfp);
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if (umove_or_printaddr(tcp, addr, &mfp))
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return false;
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pfp->len = mfp.len;
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pfp->filter =
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#ifndef IN_MPERS
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(uintptr_t)
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#endif
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mfp.filter;
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return true;
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}
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