[Linuxptp-devel] [PATCH v1 1/5] interface: Add an optional remote address for use by the UDS transport.

[Richard C. <ric...@gm...>]

Signed-off-by: Richard Cochran <ric...@gm...>
---
 clock.c      |  4 ++--
 config.c     |  2 +-
 interface.c  | 12 ++++++++++--
 interface.h  | 10 +++++++++-
 pmc_common.c |  2 +-
 5 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/clock.c b/clock.c
index b66dda5..6f7722c 100644
--- a/clock.c
+++ b/clock.c
@@ -1242,7 +1242,7 @@ struct clock *clock_create(enum clock_type type, struct config *config,
 	/* Configure the UDS. */
 
 	uds_ifname = config_get_string(config, NULL, "uds_address");
-	c->uds_rw_if = interface_create(uds_ifname);
+	c->uds_rw_if = interface_create(uds_ifname, NULL);
 	if (config_set_section_int(config, interface_name(c->uds_rw_if),
 				   "announceReceiptTimeout", 0)) {
 		return NULL;
@@ -1261,7 +1261,7 @@ struct clock *clock_create(enum clock_type type, struct config *config,
 	}
 
 	uds_ifname = config_get_string(config, NULL, "uds_ro_address");
-	c->uds_ro_if = interface_create(uds_ifname);
+	c->uds_ro_if = interface_create(uds_ifname, NULL);
 	if (config_set_section_int(config, interface_name(c->uds_ro_if),
 				   "announceReceiptTimeout", 0)) {
 		return NULL;
diff --git a/config.c b/config.c
index ad675c8..fe65b76 100644
--- a/config.c
+++ b/config.c
@@ -896,7 +896,7 @@ struct interface *config_create_interface(const char *name, struct config *cfg)
 			return iface;
 	}
 
-	iface = interface_create(name);
+	iface = interface_create(name, NULL);
 	if (!iface) {
 		fprintf(stderr, "cannot allocate memory for a port\n");
 		return NULL;
diff --git a/interface.c b/interface.c
index 9a83c36..e088e07 100644
--- a/interface.c
+++ b/interface.c
@@ -12,12 +12,13 @@ struct interface {
 	STAILQ_ENTRY(interface) list;
 	char name[MAX_IFNAME_SIZE + 1];
 	char ts_label[MAX_IFNAME_SIZE + 1];
+	char remote[MAX_IFNAME_SIZE + 1];
 	struct sk_ts_info ts_info;
 	struct sk_if_info if_info;
 	int vclock;
 };
 
-struct interface *interface_create(const char *name)
+struct interface *interface_create(const char *name, const char *remote)
 {
 	struct interface *iface;
 
@@ -27,6 +28,9 @@ struct interface *interface_create(const char *name)
 	}
 	strncpy(iface->name, name, MAX_IFNAME_SIZE);
 	strncpy(iface->ts_label, name, MAX_IFNAME_SIZE);
+	if (remote) {
+		strncpy(iface->remote, remote, MAX_IFNAME_SIZE);
+	}
 	iface->vclock = -1;
 
 	return iface;
@@ -57,7 +61,6 @@ bool interface_ifinfo_valid(struct interface *iface)
        return iface->if_info.valid ? true : false;
 }
 
-
 const char *interface_name(struct interface *iface)
 {
 	return iface->name;
@@ -68,6 +71,11 @@ int interface_phc_index(struct interface *iface)
 	return iface->ts_info.phc_index;
 }
 
+const char *interface_remote(struct interface *iface)
+{
+	return iface->remote;
+}
+
 void interface_set_label(struct interface *iface, const char *label)
 {
 	strncpy(iface->ts_label, label, MAX_IFNAME_SIZE);
diff --git a/interface.h b/interface.h
index 0873bba..b56adc5 100644
--- a/interface.h
+++ b/interface.h
@@ -23,9 +23,10 @@ struct interface;
 /**
  * Creates an instance of an interface.
  * @param name  The device which indentifies this interface.
+ * @param remote  For UDS interfaces, the address of the remote server, possibly NULL.
  * @return      A pointer to an interface instance on success, NULL otherwise.
  */
-struct interface *interface_create(const char *name);
+struct interface *interface_create(const char *name, const char *remote);
 
 /**
  * Destroys an instance of an interface.
@@ -70,6 +71,13 @@ const char *interface_name(struct interface *iface);
  */
 int interface_phc_index(struct interface *iface);
 
+/**
+ * Obtains the remote address from a UDS interface.
+ * @param iface  The interface of interest.
+ * @return       The device name of the network interface.
+ */
+const char *interface_remote(struct interface *iface);
+
 /**
  * Set the time stamping label of a given interface.
  * @param iface  The interface of interest.
diff --git a/pmc_common.c b/pmc_common.c
index 62e34a6..5092c09 100644
--- a/pmc_common.c
+++ b/pmc_common.c
@@ -524,7 +524,7 @@ struct pmc *pmc_create(struct config *cfg, enum transport_type transport_type,
 		goto failed;
 	}
 
-	pmc->iface = interface_create(iface_name);
+	pmc->iface = interface_create(iface_name, NULL);
 	if (!pmc->iface) {
 		pr_err("failed to create interface");
 		goto failed;
-- 
2.39.2