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Add port logic for the 'capable' flag from 802.1AS. 

This commit only provides helper functions that will implement the effect
of a port being not capable. We let the port be always 'capable' for now,
until we actually have added the details of that flag.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2013-01-27 09:51:45 +01:00
parent 90f791d881
commit ad8a197a0b
1 changed files with 21 additions and 0 deletions
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21
port.c
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@ -312,6 +312,12 @@ static void free_foreign_masters(struct port *p)
}
}
static int incapable_ignore(struct port *p, struct ptp_message *m)
{
/* For now, we are always capable. */
return 0;
}
static int path_trace_append(struct port *p, struct ptp_message *m,
struct parent_ds *dad)
{
@ -358,6 +364,12 @@ static int path_trace_ignore(struct port *p, struct ptp_message *m)
return 0;
}
static int port_capable(struct port *p)
{
/* For now, we are always capable. */
return 1;
}
static int port_clr_tmo(int fd)
{
struct itimerspec tmo = {
@ -370,6 +382,9 @@ static int port_ignore(struct port *p, struct ptp_message *m)
{
struct ClockIdentity c1, c2;
if (incapable_ignore(p, m)) {
return 1;
}
if (path_trace_ignore(p, m)) {
return 1;
}
@ -678,6 +693,9 @@ static int port_tx_announce(struct port *p)
struct ptp_message *msg;
int cnt, err = 0, pdulen;
if (!port_capable(p)) {
return 0;
}
msg = msg_allocate();
if (!msg)
return -1;
@ -727,6 +745,9 @@ static int port_tx_sync(struct port *p)
int cnt, err = 0, pdulen;
int event = p->timestamping == TS_ONESTEP ? TRANS_ONESTEP : TRANS_EVENT;
if (!port_capable(p)) {
return 0;
}
msg = msg_allocate();
if (!msg)
return -1;