Sorry for the churn, but now I understand how the minor version is
not part of the PORT_DATA_SET or of the VERSION_NUMBER TLV. Even
though this might have been an oversight, still, as written, the
standard is crystal clear on this point.
On Mon, Mar 01, 2021 at 11:40:30AM +0800, Yangbo Lu wrote:
> diff --git a/pmc.c b/pmc.c
> index 3678800..ea2af3f 100644
> --- a/pmc.c
> +++ b/pmc.c
> @@ -413,12 +413,14 @@ static void pmc_show(struct ptp_message *msg, FILE *fp)
> IFMT "logSyncInterval %hhd"
> IFMT "delayMechanism %hhu"
> IFMT "logMinPdelayReqInterval %hhd"
> - IFMT "versionNumber %hhu",
> + IFMT "versionNumber %u.%u",
Please drop the .%u here, and ...
> pid2str(&p->portIdentity), ps_str[p->portState],
> p->logMinDelayReqInterval, p->peerMeanPathDelay >> 16,
> p->logAnnounceInterval, p->announceReceiptTimeout,
> p->logSyncInterval, p->delayMechanism,
> - p->logMinPdelayReqInterval, p->versionNumber);
> + p->logMinPdelayReqInterval,
> + p->versionNumber & MAJOR_VERSION_MASK,
keep this part, just in case some other stacks do include the minor
version in the reserved nibble.
> + p->versionNumber >> 4);
And drop this.
Please also update the code that sends PORT_DATA_SET and
VERSION_NUMBER so that it applies the mask:
p->versionNumber & MAJOR_VERSION_MASK
Thanks,
Richard
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