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Implement the NULL management message. 

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2012-11-30 20:26:22 +01:00
parent 1516be04e2
commit b26a36d493
1 changed files with 41 additions and 1 deletions
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42
port.c
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@ -392,6 +392,44 @@ static int port_ignore(struct port *p, struct ptp_message *m)
return 0;
}
static int port_management_response(struct port *target, struct port *ingress,
int id, struct ptp_message *req)
{
int datalen = 0, err, pdulen, respond = 0;
struct management_tlv *tlv;
struct ptp_message *rsp;
struct PortIdentity pid = port_identity(target);
rsp = port_management_reply(pid, ingress, req);
if (!rsp) {
return 0;
}
tlv = (struct management_tlv *) rsp->management.suffix;
tlv->type = TLV_MANAGEMENT;
tlv->id = id;
switch (id) {
case NULL_MANAGEMENT:
datalen = 0;
respond = 1;
break;
}
if (respond) {
tlv->length = sizeof(tlv->id) + datalen;
pdulen = rsp->header.messageLength + sizeof(*tlv) + datalen;
rsp->header.messageLength = pdulen;
rsp->tlv_count = 1;
err = msg_pre_send(rsp);
if (err) {
goto out;
}
err = port_forward(ingress, rsp, pdulen);
}
out:
msg_put(rsp);
return respond ? 1 : 0;
}
static void port_nrate_calculate(struct port *p, tmv_t t3, tmv_t t4, tmv_t c)
{
tmv_t origin2;
@ -1564,8 +1602,10 @@ int port_manage(struct port *p, struct port *ingress, struct ptp_message *msg)
return 0;
}
mgt = (struct management_tlv *) msg->management.suffix;
if (port_management_response(p, ingress, mgt->id, msg)) {
return 0;
}
switch (mgt->id) {
case NULL_MANAGEMENT:
case CLOCK_DESCRIPTION:
case PORT_DATA_SET:
case LOG_ANNOUNCE_INTERVAL: