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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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3
ntp_auth.h
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@@ -55,9 +55,6 @@ extern int NAU_PrepareRequestAuth(NAU_Instance instance);
extern int NAU_GenerateRequestAuth(NAU_Instance instance, NTP_Packet *request,
NTP_PacketInfo *info);
/* Parse a request or response to detect the authentication mode */
extern int NAU_ParsePacket(NTP_Packet *packet, NTP_PacketInfo *info);
/* Verify that a request is authentic. If it is not authentic and a non-zero
kod code is returned, a KoD response should be sent back. */
extern int NAU_CheckRequestAuth(NTP_Packet *request, NTP_PacketInfo *info, uint32_t *kod);