chao
/
linuxptp
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Explicitly detect and handle changes of the peer's port id by resetting asCapable and the port's nrate 

This patch also changes port_capable() to reset the port's nrate every time asCapable changes
from true to false.

Signed-off-by: Delio Brignoli <dbrignoli@audioscience.com>
master
Delio Brignoli 2013-03-18 15:11:19 +01:00 committed by Richard Cochran
parent 9650cb687d
commit d374ad6bf7
1 changed files with 44 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
port.c
View File

@ -60,6 +60,8 @@ struct port {
struct ptp_message *peer_delay_req;
struct ptp_message *peer_delay_resp;
struct ptp_message *peer_delay_fup;
int peer_portid_valid;
struct PortIdentity peer_portid;
struct {
UInteger16 announce;
UInteger16 delayreq;
@ -96,6 +98,7 @@ struct port {
static int port_capable(struct port *p);
static int port_is_ieee8021as(struct port *p);
static void port_nrate_initialize(struct port *p);
static int announce_compare(struct ptp_message *m1, struct ptp_message *m2)
{
@ -399,6 +402,13 @@ static int port_capable(struct port *p)
goto not_capable;
}
if (!p->peer_portid_valid) {
if (p->asCapable)
pr_debug("port %hu: invalid peer port id, "
"resetting asCapable", portnum(p));
goto not_capable;
}
capable:
if (!p->asCapable)
pr_debug("port %hu: setting asCapable", portnum(p));
@ -406,6 +416,8 @@ capable:
return 1;
not_capable:
if (p->asCapable)
port_nrate_initialize(p);
p->asCapable = 0;
return 0;
}
@ -698,6 +710,8 @@ static void port_nrate_initialize(struct port *p)
p->pdr_missing = ALLOWED_LOST_RESPONSES + 1;
p->asCapable = 0;
p->peer_portid_valid = 0;
p->nrate.origin1 = tmv_zero();
p->nrate.ingress1 = tmv_zero();
p->nrate.max_count = (1 << shift);
@ -1363,6 +1377,21 @@ static int process_pdelay_req(struct port *p, struct ptp_message *m)
pr_info("port %hu: peer detected, switch to P2P", portnum(p));
p->delayMechanism = DM_P2P;
}
if (p->peer_portid_valid) {
if (!pid_eq(&p->peer_portid, &m->header.sourcePortIdentity)) {
pr_err("port %hu: received pdelay_req msg with "
"unexpected peer port id %s",
portnum(p),
pid2str(&m->header.sourcePortIdentity));
p->peer_portid_valid = 0;
port_capable(p);
}
} else {
p->peer_portid_valid = 1;
p->peer_portid = m->header.sourcePortIdentity;
pr_debug("port %hu: peer port id set to %s", portnum(p),
pid2str(&p->peer_portid));
}
rsp = msg_allocate();
if (!rsp)
@ -1526,6 +1555,21 @@ static int process_pdelay_resp(struct port *p, struct ptp_message *m)
pr_err("port %hu: rogue peer delay response", portnum(p));
return -1;
}
if (p->peer_portid_valid) {
if (!pid_eq(&p->peer_portid, &m->header.sourcePortIdentity)) {
pr_err("port %hu: received pdelay_resp msg with "
"unexpected peer port id %s",
portnum(p),
pid2str(&m->header.sourcePortIdentity));
p->peer_portid_valid = 0;
port_capable(p);
}
} else {
p->peer_portid_valid = 1;
p->peer_portid = m->header.sourcePortIdentity;
pr_debug("port %hu: peer port id set to %s", portnum(p),
pid2str(&p->peer_portid));
}
if (p->peer_delay_resp) {
msg_put(p->peer_delay_resp);