Signed-off-by: Hangbin Liu <[email protected]>
---
rtnl.c | 31 +++++++++++++++++++++++++++++++
rtnl.h | 8 ++++++++
2 files changed, 39 insertions(+)
diff --git a/rtnl.c b/rtnl.c
index d841245..2ac0b96 100644
--- a/rtnl.c
+++ b/rtnl.c
@@ -244,3 +244,34 @@ int rtnl_open(void)
}
return fd;
}
+
+static void rtnl_get_ts_label_callback(void *ctx, int linkup, int ts_index)
+{
+ int *dst = ctx;
+ *dst = ts_index;
+}
+
+int rtnl_get_ts_label(struct interface *iface)
+{
+ int err, fd;
+ int ts_index = -1;
+
+ fd = rtnl_open();
+ if (fd < 0)
+ return fd;
+
+ err = rtnl_link_query(fd, iface->name);
+ if (err) {
+ goto no_info;
+ }
+
+ rtnl_link_status(fd, iface->name, rtnl_get_ts_label_callback,
&ts_index);
+ if (ts_index > 0 && if_indextoname(ts_index, iface->ts_label))
+ err = 0;
+ else
+ err = -1;
+
+no_info:
+ rtnl_close(fd);
+ return err;
+}
diff --git a/rtnl.h b/rtnl.h
index 20f1491..d335c40 100644
--- a/rtnl.h
+++ b/rtnl.h
@@ -20,6 +20,8 @@
#ifndef HAVE_RTNL_H
#define HAVE_RTNL_H
+#include "config.h"
+
typedef void (*rtnl_callback)(void *ctx, int linkup, int ts_index);
/**
@@ -53,4 +55,10 @@ int rtnl_link_status(int fd, char *device, rtnl_callback cb,
void *ctx);
*/
int rtnl_open(void);
+/**
+ * Get interface ts_label information
+ * @param iface struct interface.
+ * @return Zero on success, or -1 on error.
+ */
+int rtnl_get_ts_label(struct interface *iface);
#endif
--
2.5.5
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