umbim: work out the ifname instead of relying on it being in uci

Signed-off-by: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42832 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/utils/umbim/files/lib/netifd/proto/mbim.sh b/package/network/utils/umbim/files/lib/netifd/proto/mbim.sh
index a777c9b..46802f2 100755 (executable)
--- a/package/network/utils/umbim/files/lib/netifd/proto/mbim.sh
+++ b/package/network/utils/umbim/files/lib/netifd/proto/mbim.sh
@@ -7,6 +7,8 @@ init_proto "$@"
 #DBG=-v
 
 proto_mbim_init_config() {
+       available=1
+       no_device=1
        proto_config_add_string "device:device"
        proto_config_add_string apn
        proto_config_add_string pincode
@@ -36,6 +38,18 @@ proto_mbim_setup() {
                proto_block_restart "$interface"
                return 1
        }
+
+       devname="$(basename "$device")"
+       devpath="$(readlink -f /sys/class/usbmisc/$devname/device/)"
+       ifname="$( ls "$devpath"/net )"
+
+       [ -n "$ifname" ] || {
+               logger -p daemon.err -t "mbim[$$]" "Failed to find matching interface"
+               proto_notify_error "$interface" NO_IFNAME
+               proto_set_available "$interface" 0
+               return 1
+       }
+
        [ -n "$apn" ] || {
                logger -p daemon.err -t "mbim[$$]" "No APN specified"
                proto_notify_error "$interface" NO_APN
@@ -116,14 +130,14 @@ proto_mbim_setup() {
 
        json_init
        json_add_string name "${interface}_dhcp"
-       json_add_string ifname "@$interface"
+       json_add_string ifname "$ifname"
        json_add_string proto "dhcp"
        json_close_object
        ubus call network add_dynamic "$(json_dump)"
 
        json_init
        json_add_string name "${interface}_dhcpv6"
-       json_add_string ifname "@$interface"
+       json_add_string ifname "$ifname"
        json_add_string proto "dhcpv6"
        ubus call network add_dynamic "$(json_dump)"
 }