Hi,

> -----Original Message-----
> From: openwrt-devel [mailto:openwrt-devel-boun...@lists.openwrt.org]
> On Behalf Of Rafal Milecki
> Sent: Dienstag, 18. Mai 2021 23:42
> To: Jo-Philipp Wich <j...@mein.io>; Hans Dedecker <dedec...@gmail.com>;
> John Crispin <j...@phrozen.org>; Felix Fietkau <n...@nbd.name>;
> openwrt-devel@lists.openwrt.org
> Cc: Rafał Miłecki <ra...@milecki.pl>
> Subject: [PATCH] base-files: migrate old UCI network sections defining
> bridges
> 
> From: Rafał Miłecki <ra...@milecki.pl>
> 
> Old "interface" sections for bridges were mixing layer 2 and layer 3.
> That syntax got deprecated and UCI section "device" is used for bridge
> configuration now.
> 
> Backward compatibility may be dropped from netifd soon now so migrate old
> configs using uci-defaults script.
> 
> Signed-off-by: Rafał Miłecki <ra...@milecki.pl>
> ---
> That "soon" is relative, I'm not planning to push this patch yet. We may give
> updated /etc/config/network few months to receive proper testing.
> ---
>  .../uci-defaults/11_network-migrate-bridges   | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/package/base-files/files/etc/uci-defaults/11_network-migrate-
> bridges b/package/base-files/files/etc/uci-defaults/11_network-migrate-
> bridges
> index 745648531f..7188c06ce3 100644
> --- a/package/base-files/files/etc/uci-defaults/11_network-migrate-bridges
> +++ b/package/base-files/files/etc/uci-defaults/11_network-migrate-bridg
> +++ es
> @@ -17,7 +17,31 @@ migrate_ports() {
>       uci delete network.$config.ifname
>  }
> 
> +migrate_bridge() {
> +     local config="$1"
> +     local type ifname
> +
> +     config_get type "$config" type
> +     [ "$type" != "bridge" ] && return
> +
> +     config_get ifname "$config" ifname
> +
> +     uci -q batch <<-EOF
> +             add network device
> +             set network.@device[-1].name='br-$config'
> +             set network.@device[-1].type='bridge'
> +     EOF
> +     for port in $ifname; do uci add_list
> +network.@device[-1].ports="$port"; done
> +
> +     uci -q batch <<-EOF
> +             delete network.$config.type
> +             set network.$config.ifname='br-$config'
> +     EOF
> +}
> +
>  config_load network
>  config_foreach migrate_ports device
> +config_foreach migrate_bridge interface uci commit network
> 
>  exit 1

Just to document it somewhere on the list as well:

I don't think putting "exit 1" here is a good solution. The uci-defaults script 
are by design meant to be run only once and then deleted.

We should either choose a "big" number for the uci-defaults file name, so the 
script is run _after_ the others and deals with custom config, or use some 
init.d/rc.d-based script instead that runs for every boot.

From a conceptual perspective, I'd prefer uci-defaults since we should be able 
to do the migration "in one step" for practical reasons and consistency.

Apart from that, thanks for taking care of this subject and trying to make 
network config more understandable.

Best

Adrian

> --
> 2.26.2
> 
> 
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