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f7413579c0
PCI paths of the WLAN devices have changed between kernel 4.4 and 4.9;
migrate config so existing wifi-iface definitions don't break.
This is implemented as a hotplug handler rather than a uci-defaults script
as the migration script must run before the 10-wifi-detect hotplug handler.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
(cherry picked from commit b452af23a8)
64 lines
1.3 KiB
Bash
64 lines
1.3 KiB
Bash
#!/bin/sh
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# This must run before 10-wifi-detect
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[ "${ACTION}" = "add" ] || return
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. /lib/functions.sh
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check_radio()
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{
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local cfg="$1" to="$2"
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config_get path "$cfg" path
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[ "$path" = "$to" ] && PATH_EXISTS=true
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}
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do_migrate_radio()
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{
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local cfg="$1" from="$2" to="$3"
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config_get path "$cfg" path
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[ "$path" = "$from" ] || return
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uci set "wireless.${cfg}.path=${to}"
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WIRELESS_CHANGED=true
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logger -t wifi-migrate "Updated path of wireless.${cfg} from '${from}' to '${to}'"
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}
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migrate_radio()
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{
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local from="$1" to="$2"
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config_load wireless
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# Check if there is already a section with the target path: In this case, the system
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# was already upgraded to a version without this migration script before; better bail out,
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# as we can't be sure we don't break more than we fix.
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PATH_EXISTS=false
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config_foreach check_radio wifi-device "$to"
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$PATH_EXISTS && return
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config_foreach do_migrate_radio wifi-device "$from" "$to"
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}
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WIRELESS_CHANGED=false
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case "$(board_name)" in
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tplink,tl-wdr4900-v1)
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migrate_radio 'ffe09000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0' 'ffe09000.pcie/pci9000:00/9000:00:00.0/9000:01:00.0'
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migrate_radio 'ffe0a000.pcie/pci0001:02/0001:02:00.0/0001:03:00.0' 'ffe0a000.pcie/pcia000:02/a000:02:00.0/a000:03:00.0'
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;;
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esac
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$WIRELESS_CHANGED && uci commit wireless
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exit 0
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