From 3d26347d0042313be3c9347f8d82c4ccea67fe68 Mon Sep 17 00:00:00 2001 From: Hans Dedecker Date: Tue, 11 Feb 2014 08:30:20 +0000 Subject: netifd: Link layer state awareness support on device level Device layer is informed by netlink events regarding the link layer status. Link layer status change results in a DEV_EVENT_LINK_UP/DEV_EVENT_LINK_DOWN broadcast event for a given device. Depends on uloop error callback patch. Solves issue reported in https://dev.openwrt.org/ticket/14590 Signed-off-by: Hans Dedecker Acked-by: Karl Vogel --- device.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) (limited to 'device.c') diff --git a/device.c b/device.c index feeb290..6a770ac 100644 --- a/device.c +++ b/device.c @@ -211,7 +211,7 @@ int device_claim(struct device_user *dep) return 0; dep->claimed = true; - D(DEVICE, "Claim %s %s, new refcount: %d\n", dev->type->name, dev->ifname, dev->active + 1); + D(DEVICE, "Claim %s %s, new active count: %d\n", dev->type->name, dev->ifname, dev->active + 1); if (++dev->active != 1) return 0; @@ -237,7 +237,7 @@ void device_release(struct device_user *dep) dep->claimed = false; dev->active--; - D(DEVICE, "Release %s %s, new refcount: %d\n", dev->type->name, dev->ifname, dev->active); + D(DEVICE, "Release %s %s, new active count: %d\n", dev->type->name, dev->ifname, dev->active); assert(dev->active >= 0); if (dev->active) @@ -394,6 +394,26 @@ void device_set_present(struct device *dev, bool state) device_refresh_present(dev); } +void device_set_link(struct device *dev, bool state) +{ + if (dev->link_active == state) + return; + + netifd_log_message(L_NOTICE, "%s '%s' link is %s\n", dev->type->name, dev->ifname, state ? "up" : "down" ); + + dev->link_active = state; + device_broadcast_event(dev, state ? DEV_EVENT_LINK_UP : DEV_EVENT_LINK_DOWN); +} + +void device_set_ifindex(struct device *dev, int ifindex) +{ + if (dev->ifindex == ifindex) + return; + + dev->ifindex = ifindex; + device_broadcast_event(dev, DEV_EVENT_UPDATE_IFINDEX); +} + static int device_refcount(struct device *dev) { struct list_head *list; @@ -435,6 +455,9 @@ void device_add_user(struct device_user *dep, struct device *dev) dep->cb(dep, DEV_EVENT_ADD); if (dev->active) dep->cb(dep, DEV_EVENT_UP); + + if (dev->link_active) + dep->cb(dep, DEV_EVENT_LINK_UP); } } @@ -667,6 +690,8 @@ device_dump_status(struct blob_buf *b, struct device *dev) return; blobmsg_add_u8(b, "up", !!dev->active); + blobmsg_add_u8(b, "carrier", !!dev->link_active); + if (dev->type->dump_info) dev->type->dump_info(dev, b); else -- cgit v1.2.3