[OpenWrt-Devel] [PATCH v3] uqmi: allow matching IMSI for qmi networks

Daniel Golle daniel at makrotopia.org
Sun Nov 4 18:46:00 EST 2018


Introduce 'imsi' configuration option for proto 'qmi' network
interfaces. Setting it makes sure the configuration only gets used
on the intended SIM card. In this way, one can have many configurations
for different SIM cards selected automatically when the card was either
swapped physically or in software (as possible on the APU3 board).
In order to allow multiple configurations using the same character
device, add locking in netifd protocol handler to avoid overlapping
execution of uqmi of the same device.

Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 package/network/utils/uqmi/Makefile           |  2 +-
 .../utils/uqmi/files/lib/netifd/proto/qmi.sh  | 54 ++++++++++++++++---
 2 files changed, 49 insertions(+), 7 deletions(-)

diff --git a/package/network/utils/uqmi/Makefile b/package/network/utils/uqmi/Makefile
index b2f3474400..8eaf0bff3f 100644
--- a/package/network/utils/uqmi/Makefile
+++ b/package/network/utils/uqmi/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=uqmi
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/uqmi.git
diff --git a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
index 9b2f69f009..2edbe7c28e 100755
--- a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
+++ b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh
@@ -10,6 +10,7 @@ proto_qmi_init_config() {
 	available=1
 	no_device=1
 	proto_config_add_string "device:device"
+	proto_config_add_string imsi
 	proto_config_add_string apn
 	proto_config_add_string auth
 	proto_config_add_string username
@@ -28,12 +29,12 @@ proto_qmi_init_config() {
 
 proto_qmi_setup() {
 	local interface="$1"
-	local dataformat connstat
-	local device apn auth username password pincode delay modes pdptype profile dhcpv6 autoconnect plmn timeout $PROTO_DEFAULT_OPTIONS
+	local dataformat connstat imsi_actual
+	local device imsi apn auth username password pincode delay modes pdptype profile dhcpv6 autoconnect plmn timeout $PROTO_DEFAULT_OPTIONS
 	local ip4table ip6table
 	local cid_4 pdh_4 cid_6 pdh_6
 	local ip_6 ip_prefix_length gateway_6 dns1_6 dns2_6
-	json_get_vars device apn auth username password pincode delay modes pdptype profile dhcpv6 autoconnect plmn ip4table ip6table timeout $PROTO_DEFAULT_OPTIONS
+	json_get_vars device imsi apn auth username password pincode delay modes pdptype profile dhcpv6 autoconnect plmn ip4table ip6table timeout $PROTO_DEFAULT_OPTIONS
 
 	[ "$timeout" = "" ] && timeout="10"
 
@@ -68,10 +69,16 @@ proto_qmi_setup() {
 		return 1
 	}
 
+	lockname="/var/lock/LCK..$devname"
+	lock "$lockname"
+
 	echo "Waiting for SIM initialization"
 	local uninitialized_timeout=0
 	while uqmi -s -d "$device" --get-pin-status | grep '"UIM uninitialized"' > /dev/null; do
-		[ -e "$device" ] || return 1
+		[ -e "$device" ] || {
+			lock -u "$lockname"
+			return 1
+		}
 		if [ "$uninitialized_timeout" -lt "$timeout" ]; then
 			let uninitialized_timeout++
 			sleep 1;
@@ -79,16 +86,29 @@ proto_qmi_setup() {
 			echo "SIM not initialized"
 			proto_notify_error "$interface" SIM_NOT_INITIALIZED
 			proto_block_restart "$interface"
+			lock -u "$lockname"
 			return 1
 		fi
 	done
 
+	[ -n "$imsi" ] && {
+		imsi_actual="$(uqmi -s -d "$device" --get-imsi | cut -d'"' -f2)"
+		[ "$imsi" = "$imsi_actual" ] || {
+			echo "Configured IMSI doesn't match SIM card."
+			proto_notify_error "$interface" SIM_WRONG
+			proto_set_available "$interface" 0
+			lock -u "$lockname"
+			return 1
+		}
+	}
+
 	if uqmi -s -d "$device" --get-pin-status | grep '"Not supported"' > /dev/null; then
 		[ -n "$pincode" ] && {
 			uqmi -s -d "$device" --verify-pin1 "$pincode" > /dev/null || uqmi -s -d "$device" --uim-verify-pin1 "$pincode" > /dev/null || {
 				echo "Unable to verify PIN"
 				proto_notify_error "$interface" PIN_FAILED
 				proto_block_restart "$interface"
+				lock -u "$lockname"
 				return 1
 			}
 		}
@@ -106,6 +126,7 @@ proto_qmi_setup() {
 				echo "SIM locked PUK required"
 				proto_notify_error "$interface" PUK_NEEDED
 				proto_block_restart "$interface"
+				lock -u "$lockname"
 				return 1
 				;;
 			not_verified)
@@ -113,6 +134,7 @@ proto_qmi_setup() {
 					echo "PIN verify count value is $pin1_verify_tries this is below the limit of 3"
 					proto_notify_error "$interface" PIN_TRIES_BELOW_LIMIT
 					proto_block_restart "$interface"
+					lock -u "$lockname"
 					return 1
 				}
 				if [ -n "$pincode" ]; then
@@ -120,12 +142,14 @@ proto_qmi_setup() {
 						echo "Unable to verify PIN"
 						proto_notify_error "$interface" PIN_FAILED
 						proto_block_restart "$interface"
+						lock -u "$lockname"
 						return 1
 					}
 				else
 					echo "PIN not specified but required"
 					proto_notify_error "$interface" PIN_NOT_SPECIFIED
 					proto_block_restart "$interface"
+					lock -u "$lockname"
 					return 1
 				fi
 				;;
@@ -136,6 +160,7 @@ proto_qmi_setup() {
 				echo "PIN status failed ($pin1_status)"
 				proto_notify_error "$interface" PIN_STATUS_FAILED
 				proto_block_restart "$interface"
+				lock -u "$lockname"
 				return 1
 			;;
 		esac
@@ -156,6 +181,7 @@ proto_qmi_setup() {
 			echo "Unable to set PLMN"
 			proto_notify_error "$interface" PLMN_FAILED
 			proto_block_restart "$interface"
+			lock -u "$lockname"
 			return 1
 		}
 	}
@@ -172,6 +198,7 @@ proto_qmi_setup() {
 
 		[ -f /sys/class/net/$ifname/qmi/raw_ip ] || {
 			echo "Device only supports raw-ip mode but is missing this required driver attribute: /sys/class/net/$ifname/qmi/raw_ip"
+			lock -u "$lockname"
 			return 1
 		}
 
@@ -184,7 +211,10 @@ proto_qmi_setup() {
 	echo "Waiting for network registration"
 	local registration_timeout=0
 	while uqmi -s -d "$device" --get-serving-system | grep '"searching"' > /dev/null; do
-		[ -e "$device" ] || return 1
+		[ -e "$device" ] || {
+			lock -u "$lockname"
+			return 1
+		}
 		if [ "$registration_timeout" -lt "$timeout" ]; then
 			let registration_timeout++
 			sleep 1;
@@ -192,6 +222,7 @@ proto_qmi_setup() {
 			echo "Network registration failed"
 			proto_notify_error "$interface" NETWORK_REGISTRATION_FAILED
 			proto_block_restart "$interface"
+			lock -u "$lockname"
 			return 1
 		fi
 	done
@@ -215,6 +246,7 @@ proto_qmi_setup() {
 		if ! [ "$cid_4" -eq "$cid_4" ] 2> /dev/null; then
 			echo "Unable to obtain client ID"
 			proto_notify_error "$interface" NO_CID
+			lock -u "$lockname"
 			return 1
 		fi
 
@@ -234,6 +266,7 @@ proto_qmi_setup() {
 			echo "Unable to connect IPv4"
 			uqmi -s -d "$device" --set-client-id wds,"$cid_4" --release-client-id wds > /dev/null 2>&1
 			proto_notify_error "$interface" CALL_FAILED
+			lock -u "$lockname"
 			return 1
 		fi
 
@@ -243,6 +276,7 @@ proto_qmi_setup() {
 			echo "No data link!"
 			uqmi -s -d "$device" --set-client-id wds,"$cid_4" --release-client-id wds > /dev/null 2>&1
 			proto_notify_error "$interface" CALL_FAILED
+			lock -u "$lockname"
 			return 1
 		}
 	}
@@ -252,6 +286,7 @@ proto_qmi_setup() {
 		if ! [ "$cid_6" -eq "$cid_6" ] 2> /dev/null; then
 			echo "Unable to obtain client ID"
 			proto_notify_error "$interface" NO_CID
+			lock -u "$lockname"
 			return 1
 		fi
 
@@ -271,6 +306,7 @@ proto_qmi_setup() {
 			echo "Unable to connect IPv6"
 			uqmi -s -d "$device" --set-client-id wds,"$cid_6" --release-client-id wds > /dev/null 2>&1
 			proto_notify_error "$interface" CALL_FAILED
+			lock -u "$lockname"
 			return 1
 		fi
 
@@ -280,6 +316,7 @@ proto_qmi_setup() {
 			echo "No data link!"
 			uqmi -s -d "$device" --set-client-id wds,"$cid_6" --release-client-id wds > /dev/null 2>&1
 			proto_notify_error "$interface" CALL_FAILED
+			lock -u "$lockname"
 			return 1
 		}
 	}
@@ -343,6 +380,7 @@ proto_qmi_setup() {
 		json_close_object
 		ubus call network add_dynamic "$(json_dump)"
 	}
+	lock -u "$lockname"
 }
 
 qmi_wds_stop() {
@@ -367,10 +405,12 @@ qmi_wds_stop() {
 proto_qmi_teardown() {
 	local interface="$1"
 
-	local device cid_4 pdh_4 cid_6 pdh_6
+	local device localname cid_4 pdh_4 cid_6 pdh_6
 	json_get_vars device
 
 	[ -n "$ctl_device" ] && device=$ctl_device
+	lockname="/var/lock/LCK..$(basename "$device")"
+	lock "$lockname"
 
 	echo "Stopping network $interface"
 
@@ -383,6 +423,8 @@ proto_qmi_teardown() {
 
 	proto_init_update "*" 0
 	proto_send_update "$interface"
+
+	lock -u "$lockname"
 }
 
 [ -n "$INCLUDE_ONLY" ] || {
-- 
2.19.1


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