comgt-ncm: Fix NCM protocol

This patch fixes the NCM protocol by adding the missing ifname
to the netifd script and changing one unintended "send" statement to
"print" in runcommand.gcom. It also cleans up logging and makes the
manufacturer names case-insensitive. Furthermore, comgt-ncm should
not depend on the USB-serial-related kernel modules, as the cdc-wdm
control device works without them. There is also no need to depend on
kmod-huawei-cdc-ncm, since other manufacturers (like Sony-Ericsson
and Samsung) which use other kernel modules should also be supported.

I'd appreciate if someone with Samsung or Sony-Ericsson modems could
test this, I was only able to test it with Huawei E3276, E3372 and
E353.

Signed-off-by: Matti Laakso <malaakso@elisanet.fi>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44182 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/utils/comgt/Makefile b/package/network/utils/comgt/Makefile
index 9ab2f14..500365a 100644 (file)
--- a/package/network/utils/comgt/Makefile
+++ b/package/network/utils/comgt/Makefile
@@ -44,7 +44,7 @@ endef
 define Package/comgt-ncm
 $(call Package/comgt/Default)
   TITLE+=NCM 3G/4G Support
-  DEPENDS:=+comgt +kmod-usb-serial +kmod-usb-serial-option +kmod-usb-net +kmod-usb-net-cdc-ncm +kmod-usb-net-huawei-cdc-ncm
+  DEPENDS:=+comgt
 endef
 
 define Package/comgt/description

diff --git a/package/network/utils/comgt/files/ncm.json b/package/network/utils/comgt/files/ncm.json
index b9b15cd..ea4f984 100644 (file)
--- a/package/network/utils/comgt/files/ncm.json
+++ b/package/network/utils/comgt/files/ncm.json
@@ -19,7 +19,7 @@
                "connect": "AT^NDISDUP=1,1,\\\"${apn}\\\"${username:+,\\\"$username\\\"}${password:+,\\\"$password\\\"}${auth:+,$auth}",
                "disconnect": "AT^NDISDUP=1,0"
        },
-       "SAMSUNG": {
+       "samsung": {
                "initialize": [
                        "AT",
                        "AT+CGREG=2",
@@ -33,7 +33,7 @@
                "connect": "AT+CGATT=1",
                "disconnect": "AT+CGATT=0"
        },
-       "Sony": {
+       "sony": {
                "initialize": [
                        "AT+CFUN=1",
                        "AT+CGDCONT=1,\\\"IP\\\",\\\"${apn}\\\"",

diff --git a/package/network/utils/comgt/files/ncm.sh b/package/network/utils/comgt/files/ncm.sh
index 14e421f..2c2835f 100644 (file)
--- a/package/network/utils/comgt/files/ncm.sh
+++ b/package/network/utils/comgt/files/ncm.sh
@@ -1,8 +1,10 @@
 #!/bin/sh
 
-. /lib/functions.sh
-. ../netifd-proto.sh
-init_proto "$@"
+[ -n "$INCLUDE_ONLY" ] || {
+       . /lib/functions.sh
+       . ../netifd-proto.sh
+       init_proto "$@"
+}
 
 proto_ncm_init_config() {
        no_device=1
@@ -20,34 +22,52 @@ proto_ncm_init_config() {
 proto_ncm_setup() {
        local interface="$1"
 
-       local manufacturer initialize setmode connect
+       local manufacturer initialize setmode connect ifname devname devpath
 
        local device apn auth username password pincode delay mode
        json_get_vars device apn auth username password pincode delay mode
 
        [ -n "$device" ] || {
-               echo "ncm[$$]" "No control device specified"
+               echo "No control device specified"
                proto_notify_error "$interface" NO_DEVICE
                proto_set_available "$interface" 0
                return 1
        }
        [ -e "$device" ] || {
-               echo "ncm[$$]" "Control device not valid"
+               echo "Control device not valid"
                proto_set_available "$interface" 0
                return 1
        }
        [ -n "$apn" ] || {
-               echo "ncm[$$]" "No APN specified"
+               echo "No APN specified"
                proto_notify_error "$interface" NO_APN
                proto_set_available "$interface" 0
                return 1
        }
 
+       devname="$(basename "$device")"
+       case "$devname" in
+       'tty'*)
+               devpath="$(readlink -f /sys/class/tty/$devname/device)"
+               ifname="$( ls "$devpath"/../../*/net )"
+               ;;
+       *)
+               devpath="$(readlink -f /sys/class/usbmisc/$devname/device/)"
+               ifname="$( ls "$devpath"/net )"
+               ;;
+       esac
+       [ -n "$ifname" ] || {
+               echo "The interface could not be found."
+               proto_notify_error "$interface" NO_IFACE
+               proto_set_available "$interface" 0
+               return 1
+       }
+
        [ -n "$delay" ] && sleep "$delay"
 
-       manufacturer=`gcom -d "$device" -s /etc/gcom/getcardinfo.gcom | awk '/Manufacturer/ { print $2 }'`
+       manufacturer=`gcom -d "$device" -s /etc/gcom/getcardinfo.gcom | awk '/Manufacturer/ { print tolower($2) }'`
        [ $? -ne 0 ] && {
-               echo "ncm[$$]" "Failed to get modem information"
+               echo "Failed to get modem information"
                proto_notify_error "$interface" GETINFO_FAILED
                proto_set_available "$interface" 0
                return 1
@@ -56,7 +76,7 @@ proto_ncm_setup() {
        json_load "$(cat /etc/gcom/ncm.json)"
        json_select "$manufacturer"
        [ $? -ne 0 ] && {
-               echo "ncm[$$]" "Unsupported modem"
+               echo "Unsupported modem"
                proto_notify_error "$interface" UNSUPPORTED_MODEM
                proto_set_available "$interface" 0
                return 1
@@ -64,7 +84,7 @@ proto_ncm_setup() {
        json_get_values initialize initialize
        for i in $initialize; do
                eval COMMAND="$i" gcom -d "$device" -s /etc/gcom/runcommand.gcom || {
-                       echo "ncm[$$]" "Failed to initialize modem"
+                       echo "Failed to initialize modem"
                        proto_notify_error "$interface" INITIALIZE_FAILED
                        proto_set_available "$interface" 0
                        return 1
@@ -73,7 +93,7 @@ proto_ncm_setup() {
 
        [ -n "$pincode" ] && {
                PINCODE="$pincode" gcom -d "$device" -s /etc/gcom/setpin.gcom || {
-                       echo "ncm[$$]" "Unable to verify PIN"
+                       echo "Unable to verify PIN"
                        proto_notify_error "$interface" PIN_FAILED
                        proto_block_restart "$interface"
                        return 1
@@ -83,7 +103,7 @@ proto_ncm_setup() {
                json_select modes
                json_get_var setmode "$mode"
                COMMAND="$setmode" gcom -d "$device" -s /etc/gcom/runcommand.gcom || {
-                       echo "ncm[$$]" "Failed to set operating mode"
+                       echo "Failed to set operating mode"
                        proto_notify_error "$interface" SETMODE_FAILED
                        proto_set_available "$interface" 0
                        return 1
@@ -91,66 +111,66 @@ proto_ncm_setup() {
                json_select ..
        }
 
-       json_get_var connect connect
+       json_get_vars connect
        eval COMMAND="$connect" gcom -d "$device" -s /etc/gcom/runcommand.gcom || {
-               echo "ncm[$$]" "Failed to connect"
+               echo "Failed to connect"
                proto_notify_error "$interface" CONNECT_FAILED
                proto_set_available "$interface" 0
                return 1
        }
 
-       echo "ncm[$$]" "Connected, starting DHCP"
-       proto_init_update "*" 1
+       echo "Connected, starting DHCP"
+       
+       proto_init_update "$ifname" 1
        proto_send_update "$interface"
 
        json_init
        json_add_string name "${interface}_dhcp"
        json_add_string ifname "@$interface"
        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 proto "dhcpv6"
-       json_close_object
        ubus call network add_dynamic "$(json_dump)"
 }
 
 proto_ncm_teardown() {
        local interface="$1"
 
-       proto_init_update "*" 0
-       proto_send_update "$interface"
-
        local manufacturer disconnect
 
-       local device 
+       local device
        json_get_vars device
 
-       echo "ncm[$$]" "Stopping network"
+       echo "Stopping network"
 
-       manufacturer=`gcom -d "$device" -s /etc/gcom/getcardinfo.gcom | awk '/Manufacturer/ { print $2 }'`
+       manufacturer=`gcom -d "$device" -s /etc/gcom/getcardinfo.gcom | awk '/Manufacturer/ { print tolower($2) }'`
        [ $? -ne 0 ] && {
-               echo "ncm[$$]" "Failed to get modem information"
+               echo "Failed to get modem information"
                proto_notify_error "$interface" GETINFO_FAILED
                return 1
        }
 
        json_load "$(cat /etc/gcom/ncm.json)"
        json_select "$manufacturer" || {
-               echo "ncm[$$]" "Unsupported modem"
+               echo "Unsupported modem"
                proto_notify_error "$interface" UNSUPPORTED_MODEM
                return 1
        }
 
-       json_get_var disconnect disconnect
+       json_get_vars disconnect
        COMMAND="$disconnect" gcom -d "$device" -s /etc/gcom/runcommand.gcom || {
-               echo "ncm[$$]" "Failed to disconnect"
+               echo "Failed to disconnect"
                proto_notify_error "$interface" DISCONNECT_FAILED
                return 1
        }
-}
 
-add_protocol ncm
+       proto_init_update "*" 0
+       proto_send_update "$interface"
+}
+[ -n "$INCLUDE_ONLY" ] || {
+       add_protocol ncm
+}

diff --git a/package/network/utils/comgt/files/runcommand.gcom b/package/network/utils/comgt/files/runcommand.gcom
index ab24339..e99b6f9 100644 (file)
--- a/package/network/utils/comgt/files/runcommand.gcom
+++ b/package/network/utils/comgt/files/runcommand.gcom
@@ -6,14 +6,15 @@ opengt
  flash 0.1
 
 :start
- send "sending -> "
+ print "sending -> ",$env("COMMAND"),"\n"
  send $env("COMMAND")
  send "^m"
 
- waitfor 15 "OK","ERR","ERROR"
+ waitfor 15 "OK","ERR","ERROR","COMMAND NOT SUPPORT"
  if % = 0 goto continue
  if % = 1 goto error
  if % = 2 goto error
+ if % = 3 goto notsupported
 
  print "Timeout running AT-command\n"
  exit 1
@@ -22,5 +23,9 @@ opengt
  print "Error running AT-command\n"
  exit 1
 
+:notsupported
+ print "AT-command not supported\n"
+ exit 1
+
 :continue
  exit 0