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modemmanager: Fix Permission Denied error

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The proto_send_update function is sending a notification to netifd
during the teardown section. However, netifd filters link update
notifications executed during teardown, as indicated here:
https://git.openwrt.org/?p=project/netifd.git;a=blob;f=proto-shell.c#l515
This was leading to a Permission Denied error due to its behavior,
making proto_send_update ineffective during teardown.

To address the issue, the proto_send_update function has been removed
from the teardown section. This prevents the Permission Denied error
while ensuring proper operation during teardown.

Additionally, in the 10-report-down helper script, a check has been
implemented to determine if the interface is already down. This check
is crucial to avoid triggering a Permission Denied error, especially
in cases where netifd is already aware of a controlled ifdown operation.

Signed-off-by: Oliver Sedlbauer <osedlbauer@tdt.de>
This commit is contained in:
Oliver Sedlbauer 2023-08-16 17:24:56 +02:00
parent 4299e892de
commit ac806e9921
3 changed files with 9 additions and 17 deletions
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2
net/modemmanager/Makefile
View File

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=modemmanager
PKG_SOURCE_VERSION:=1.20.6
PKG_RELEASE:=12
PKG_RELEASE:=13
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://gitlab.freedesktop.org/mobile-broadband/ModemManager.git

11
net/modemmanager/files/10-report-down
View File

@ -29,7 +29,12 @@ MODEM_DEVICE=$(modemmanager_get_field "${MODEM_STATUS}" "modem.generic.device")
CFG=$(mm_get_modem_config "${MODEM_DEVICE}")
[ -n "${CFG}" ] || exit 3
logger -t "modemmanager" "interface ${CFG} (network device ${INTERFACE}) ${STATE}"
proto_init_update $INTERFACE 0
proto_send_update $CFG
IFUP=$(ifstatus "${CFG}" | jsonfilter -e "@.up")
[ "${IFUP}" = "true" ] && {
logger -t "modemmanager" "interface ${CFG} (network device ${INTERFACE}) ${STATE}"
proto_init_update $INTERFACE 0
proto_send_update $CFG
}
exit 0

13
net/modemmanager/files/modemmanager.proto
View File

@ -323,15 +323,6 @@ modemmanager_connected_method_static_ipv6() {
proto_send_update "${interface}"
}
modemmanager_disconnected_method_common() {
local interface="$1"
echo "running disconnection (common)"
proto_init_update "*" 0
proto_send_update "${interface}"
}
proto_modemmanager_init_config() {
available=1
no_device=1
@ -628,7 +619,6 @@ proto_modemmanager_teardown() {
# disconnection handling only requires special treatment in IPv4/PPP
[ "${bearermethod_ipv4}" = "ppp" ] && modemmanager_disconnected_method_ppp_ipv4 "${interface}"
modemmanager_disconnected_method_common "${interface}"
# disconnect
mmcli --modem="${device}" --simple-disconnect ||
@ -640,9 +630,6 @@ proto_modemmanager_teardown() {
# low power, only if requested
[ "${lowpower:-0}" -lt 1 ] ||
mmcli --modem="${device}" --set-power-state-low
proto_init_update "*" 0
proto_send_update "$interface"
}
[ -n "$INCLUDE_ONLY" ] || {