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support GET CLOCK_DESCRIPTION and USER_DESCRIPTION mgmt messages 

Signed-off-by: Geoff Salmon <gsalmon@se-instruments.com>
master
Geoff Salmon 2013-02-24 18:56:37 -05:00 committed by Richard Cochran
parent e919971905
commit 36a5921e88
4 changed files with 166 additions and 0 deletions
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17
clock.c
View File

@ -159,6 +159,7 @@ static int clock_management_get_response(struct clock *c, struct port *p,
struct ptp_message *rsp;
struct time_status_np *tsn;
struct PortIdentity pid = port_identity(p);
struct PTPText *text;
rsp = port_management_reply(pid, p, req);
if (!rsp) {
@ -169,6 +170,13 @@ static int clock_management_get_response(struct clock *c, struct port *p,
tlv->id = id;
switch (id) {
case USER_DESCRIPTION:
text = (struct PTPText *) tlv->data;
text->length = c->desc.userDescription.length;
memcpy(text->text, c->desc.userDescription.text, text->length);
datalen = 1 + text->length;
respond = 1;
break;
case DEFAULT_DATA_SET:
memcpy(tlv->data, &c->dds, sizeof(c->dds));
datalen = sizeof(c->dds);
@ -209,6 +217,10 @@ static int clock_management_get_response(struct clock *c, struct port *p,
break;
}
if (respond) {
if (datalen % 2) {
tlv->data[datalen] = 0;
datalen++;
}
tlv->length = sizeof(tlv->id) + datalen;
pdulen = rsp->header.messageLength + sizeof(*tlv) + datalen;
rsp->header.messageLength = pdulen;
@ -1082,3 +1094,8 @@ struct clock_description *clock_description(struct clock *c)
{
return &c->desc;
}
int clock_num_ports(struct clock *c)
{
return c->nports;
}

7
clock.h
View File

@ -222,4 +222,11 @@ struct timePropertiesDS *clock_time_properties(struct clock *c);
*/
struct clock_description *clock_description(struct clock *c);
/**
* Obtain the number of ports a clock has, excluding the UDS port.
* @param c The clock instance.
* @return The number of ports.
*/
int clock_num_ports(struct clock *c);
#endif

77
port.c
View File

@ -438,6 +438,9 @@ static void port_management_send_error(struct port *p, struct port *ingress,
pr_err("port %hu: management error failed", portnum(p));
}
static const Octet profile_id_drr[] = {0x00, 0x1B, 0x19, 0x00, 0x01, 0x00};
static const Octet profile_id_p2p[] = {0x00, 0x1B, 0x19, 0x00, 0x02, 0x00};
static int port_management_get_response(struct port *target,
struct port *ingress, int id,
struct ptp_message *req)
@ -447,6 +450,10 @@ static int port_management_get_response(struct port *target,
struct ptp_message *rsp;
struct portDS *pds;
struct PortIdentity pid = port_identity(target);
struct clock_description *desc;
struct mgmt_clock_description *cd;
uint8_t *buf;
uint16_t u16;
rsp = port_management_reply(pid, ingress, req);
if (!rsp) {
@ -461,6 +468,72 @@ static int port_management_get_response(struct port *target,
datalen = 0;
respond = 1;
break;
case CLOCK_DESCRIPTION:
cd = &rsp->last_tlv.cd;
buf = tlv->data;
cd->clockType = (UInteger16 *) buf;
buf += sizeof(*cd->clockType);
if (clock_num_ports(target->clock) > 1) {
*cd->clockType = CLOCK_TYPE_BOUNDARY;
} else {
*cd->clockType = CLOCK_TYPE_ORDINARY;
}
cd->physicalLayerProtocol = (struct PTPText *) buf;
switch(transport_type(target->trp)) {
case TRANS_UDP_IPV4:
case TRANS_UDP_IPV6:
case TRANS_IEEE_802_3:
ptp_text_set(cd->physicalLayerProtocol, "IEEE 802.3");
break;
default:
ptp_text_set(cd->physicalLayerProtocol, NULL);
break;
}
buf += sizeof(struct PTPText) + cd->physicalLayerProtocol->length;
cd->physicalAddress = (struct PhysicalAddress *) buf;
u16 = transport_physical_addr(target->trp,
cd->physicalAddress->address);
memcpy(&cd->physicalAddress->length, &u16, 2);
buf += sizeof(struct PhysicalAddress) + u16;
cd->protocolAddress = (struct PortAddress *) buf;
u16 = transport_type(target->trp);
memcpy(&cd->protocolAddress->networkProtocol, &u16, 2);
u16 = transport_protocol_addr(target->trp,
cd->protocolAddress->address);
memcpy(&cd->protocolAddress->addressLength, &u16, 2);
buf += sizeof(struct PortAddress) + u16;
desc = clock_description(target->clock);
cd->manufacturerIdentity = buf;
memcpy(cd->manufacturerIdentity,
desc->manufacturerIdentity, OUI_LEN);
buf += OUI_LEN;
*(buf++) = 0; /* reserved */
cd->productDescription = (struct PTPText *) buf;
ptp_text_copy(cd->productDescription, &desc->productDescription);
buf += sizeof(struct PTPText) + cd->productDescription->length;
cd->revisionData = (struct PTPText *) buf;
ptp_text_copy(cd->revisionData, &desc->revisionData);
buf += sizeof(struct PTPText) + cd->revisionData->length;
cd->userDescription = (struct PTPText *) buf;
ptp_text_copy(cd->userDescription, &desc->userDescription);
buf += sizeof(struct PTPText) + cd->userDescription->length;
if (target->delayMechanism == DM_P2P) {
memcpy(buf, profile_id_p2p, PROFILE_ID_LEN);
} else {
memcpy(buf, profile_id_drr, PROFILE_ID_LEN);
}
buf += PROFILE_ID_LEN;
datalen = buf - tlv->data;
respond = 1;
break;
case PORT_DATA_SET:
pds = (struct portDS *) tlv->data;
pds->portIdentity = target->portIdentity;
@ -486,6 +559,10 @@ static int port_management_get_response(struct port *target,
break;
}
if (respond) {
if (datalen % 2) {
tlv->data[datalen] = 0;
datalen++;
}
tlv->length = sizeof(tlv->id) + datalen;
pdulen = rsp->header.messageLength + sizeof(*tlv) + datalen;
rsp->header.messageLength = pdulen;

65
tlv.c
View File

@ -42,6 +42,14 @@ static void scaled_ns_h2n(ScaledNs *sns)
sns->fractional_nanoseconds = htons(sns->fractional_nanoseconds);
}
static uint16_t flip16(uint16_t *p) {
uint16_t v;
memcpy(&v, p, sizeof(v));
v = htons(v);
memcpy(p, &v, sizeof(v));
return v;
}
static int mgt_post_recv(struct management_tlv *m, uint16_t data_len,
struct tlv_extra *extra)
{
@ -51,8 +59,55 @@ static int mgt_post_recv(struct management_tlv *m, uint16_t data_len,
struct timePropertiesDS *tp;
struct portDS *p;
struct time_status_np *tsn;
struct mgmt_clock_description *cd;
int extra_len = 0;
uint8_t *buf;
uint16_t u16;
switch (m->id) {
case CLOCK_DESCRIPTION:
cd = &extra->cd;
buf = m->data;
cd->clockType = (UInteger16 *) buf;
flip16(cd->clockType);
buf += sizeof(*cd->clockType);
cd->physicalLayerProtocol = (struct PTPText *) buf;
buf += sizeof(struct PTPText);
buf += cd->physicalLayerProtocol->length;
cd->physicalAddress = (struct PhysicalAddress *) buf;
u16 = flip16(&cd->physicalAddress->length);
if (u16 > TRANSPORT_ADDR_LEN)
goto bad_length;
buf += sizeof(struct PhysicalAddress) + u16;
cd->protocolAddress = (struct PortAddress *) buf;
flip16(&cd->protocolAddress->networkProtocol);
u16 = flip16(&cd->protocolAddress->addressLength);
if (u16 > TRANSPORT_ADDR_LEN)
goto bad_length;
buf += sizeof(struct PortAddress) + u16;
cd->manufacturerIdentity = buf;
buf += OUI_LEN + 1;
cd->productDescription = (struct PTPText *) buf;
buf += sizeof(struct PTPText) + cd->productDescription->length;
cd->revisionData = (struct PTPText *) buf;
buf += sizeof(struct PTPText) + cd->revisionData->length;
cd->userDescription = (struct PTPText *) buf;
buf += sizeof(struct PTPText) + cd->userDescription->length;
cd->profileIdentity = buf;
buf += PROFILE_ID_LEN;
extra_len = buf - m->data;
break;
case USER_DESCRIPTION:
extra->cd.userDescription = (struct PTPText *) m->data;
extra_len = sizeof(struct PTPText);
extra_len += extra->cd.userDescription->length;
break;
case DEFAULT_DATA_SET:
if (data_len != sizeof(struct defaultDS))
goto bad_length;
@ -127,7 +182,17 @@ static void mgt_pre_send(struct management_tlv *m, struct tlv_extra *extra)
struct timePropertiesDS *tp;
struct portDS *p;
struct time_status_np *tsn;
struct mgmt_clock_description *cd;
switch (m->id) {
case CLOCK_DESCRIPTION:
if (extra) {
cd = &extra->cd;
flip16(cd->clockType);
flip16(&cd->physicalAddress->length);
flip16(&cd->protocolAddress->networkProtocol);
flip16(&cd->protocolAddress->addressLength);
}
break;
case DEFAULT_DATA_SET:
dds = (struct defaultDS *) m->data;
dds->numberPorts = htons(dds->numberPorts);