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ntp: move initial packet parsing from ntp_auth to ntp_core

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Since commit fdfcabd79b ("ntp: drop support for long NTPv4 MACs"), the
parser doesn't need to check validify of MACs in NTPv4 packets to
distinguish them from extension fields. Move the parser to ntp_core to
avoid having a separate iteration looking for non-authentication
extension fields.
This commit is contained in:
Miroslav Lichvar
2021-11-08 16:06:03 +01:00
parent a2d1569455
commit 36356ef033
9 changed files with 204 additions and 134 deletions
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5
nts_ntp.h
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@@ -27,11 +27,6 @@
#ifndef GOT_NTS_NTP_H
#define GOT_NTS_NTP_H
#define NTP_EF_NTS_UNIQUE_IDENTIFIER 0x0104
#define NTP_EF_NTS_COOKIE 0x0204
#define NTP_EF_NTS_COOKIE_PLACEHOLDER 0x0304
#define NTP_EF_NTS_AUTH_AND_EEF 0x0404
#define NTP_KOD_NTS_NAK 0x4e54534e
#define NTS_MIN_UNIQ_ID_LENGTH 32