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>master
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#!/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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