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Quelle ppp_defs.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0-only */ /* * ppp_defs.h - PPP definitions. * * Copyright 1994-2000 Paul Mackerras. */ #ifndef _PPP_DEFS_H_ #define _PPP_DEFS_H_ #include <linux/crc-ccitt.h> #include <uapi/linux/ppp_defs.h> #define PPP_FCS(fcs, c) crc_ccitt_byte(fcs, c) /** * ppp_proto_is_valid - checks if PPP protocol is valid * @proto: PPP protocol * * Assumes proto is not compressed. * Protocol is valid if the value is odd and the least significant bit of the * most significant octet is 0 (see RFC 1661, section 2). */ static inline bool ppp_proto_is_valid(u16 proto) { return !!((proto & 0x0101) == 0x0001); } #endif /* _PPP_DEFS_H_ */
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2026-04-02