[PATCH v2 2/2] stemodem: Use RTNL to create network interfaces.

[Sjur Brændeland]

From: Sjur Brændeland <sjur.brandel...@stericsson.com>

---
 drivers/stemodem/gprs-context.c |   43 ++++++++++++++++++++++++++++++++++++++-
 1 files changed, 42 insertions(+), 1 deletions(-)

diff --git a/drivers/stemodem/gprs-context.c b/drivers/stemodem/gprs-context.c
index 3ccda87..3859107 100644
--- a/drivers/stemodem/gprs-context.c
+++ b/drivers/stemodem/gprs-context.c
@@ -47,6 +47,7 @@
 #include "stemodem.h"
 #include "caif_socket.h"
 #include "if_caif.h"
+#include "caif_rtnl.h"
 
 #define MAX_CAIF_DEVICES 4
 #define MAX_DNS 2
@@ -172,12 +173,38 @@ static struct conn_info *conn_info_create(unsigned int 
channel_id)
        return connection;
 }
 
+static void rtnl_callback(int ifindex, const char *ifname, void *user_data)
+{
+       struct conn_info *conn = user_data;
+
+       if (ifindex < 0) {
+               conn->created = FALSE;
+               ofono_error("Failed to create caif interface %s",
+                       conn->interface);
+               return;
+       }
+
+       strncpy(conn->interface, ifname, sizeof(conn->interface));
+       conn->ifindex = ifindex;
+       conn->created = TRUE;
+}
+
 /*
  * Creates a new IP interface for CAIF.
  */
 static gboolean caif_if_create(struct conn_info *conn)
 {
-       return FALSE;
+       int err;
+
+       err = caif_rtnl_create_interface(IFLA_CAIF_IPV4_CONNID,
+                                               conn->channel_id, FALSE,
+                                               rtnl_callback, conn);
+       if (err < 0) {
+               DBG("Failed to create IP interface for CAIF");
+               return FALSE;
+       }
+
+       return TRUE;
 }
 
 /*
@@ -185,6 +212,18 @@ static gboolean caif_if_create(struct conn_info *conn)
  */
 static void caif_if_remove(struct conn_info *conn)
 {
+       if (!conn->created)
+               return;
+
+       if (caif_rtnl_delete_interface(conn->ifindex) < 0) {
+               ofono_error("Failed to delete caif interface %s",
+                       conn->interface);
+               return;
+       }
+
+       DBG("removed CAIF interface ch:%d ifname:%s ifindex:%d\n",
+               conn->channel_id, conn->interface, conn->ifindex);
+       return;
 }
 
 static void ste_eppsd_down_cb(gboolean ok, GAtResult *result,
@@ -571,10 +610,12 @@ static struct ofono_gprs_context_driver driver = {
 
 void ste_gprs_context_init()
 {
+       caif_rtnl_init();
        ofono_gprs_context_driver_register(&driver);
 }
 
 void ste_gprs_context_exit()
 {
+       caif_rtnl_exit();
        ofono_gprs_context_driver_unregister(&driver);
 }
-- 
1.7.0.4

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