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ntp: update NTP-over-PTP support

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Update the support for NTP over PTP to the latest specification
(currently in the RFC editor queue). Switch the NTP TLV to the
organization-specific TLV using the IANA OUI and assigned TLV
subtype 0x1. The Network Correction extension field has been
assigned type 0x10A. The extfield option accepts F324 as an alias
for 10A to not break existing configurations. Drop the experimental
status.
This commit is contained in:
Miroslav Lichvar
2025-11-26 12:14:08 +01:00
parent 73f6657dfd
commit 007a1ae4fe
12 changed files with 94 additions and 82 deletions
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21
ntp.h
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@@ -115,11 +115,17 @@ typedef struct {
/* Non-authentication extension fields and corresponding internal flags */
#define NTP_EF_NET_CORRECTION 0x010A
#define NTP_EF_EXP_MONO_ROOT 0xF323
#define NTP_EF_EXP_NET_CORRECTION 0xF324
#define NTP_EF_FLAG_EXP_MONO_ROOT 0x1
#define NTP_EF_FLAG_EXP_NET_CORRECTION 0x2
#define NTP_EF_FLAG_NET_CORRECTION 0x1
#define NTP_EF_FLAG_EXP_MONO_ROOT 0x2
/* Network Correction extension field */
typedef struct {
NTP_int64 correction;
uint32_t pad[4];
} NTP_EFNetCorrection;
/* Pre-NTPv5 experimental extension field */
typedef struct {
@@ -132,15 +138,6 @@ typedef struct {
#define NTP_EF_EXP_MONO_ROOT_MAGIC 0xF5BEDD9AU
/* Experimental extension field to provide PTP corrections */
typedef struct {
uint32_t magic;
NTP_int64 correction;
uint32_t reserved[3];
} NTP_EFExpNetCorrection;
#define NTP_EF_EXP_NET_CORRECTION_MAGIC 0x07AC2CEBU
/* Authentication extension fields */
#define NTP_EF_NTS_UNIQUE_IDENTIFIER 0x0104