Hi, Merry Christmas!
On Wed, Dec 23, 2020 at 6:15 AM Jan Just Keijser <janj...@nikhef.nl> wrote: > On 21/12/20 18:22, Selva Nair wrote: > > > > On Mon, Dec 21, 2020 at 2:04 AM Gert Doering <g...@greenie.muc.de> wrote: > >> Hi, >> >> On Sun, Dec 20, 2020 at 07:31:42PM -0500, Selva Nair wrote: >> > I thought we already went through this when we discussed the proposed >> "echo >> > msg" in considerable detail 3 years ago. >> >> Yeah, sorry. Seems I got distracted and forgot all about the discussed >> "solution space", and just remembered the itch. >> >> I'm sure the thread is still sitting in my mailbox... will go looking for >> it today. >> > > For those who have lost the original threads: > > > https://sourceforge.net/p/openvpn/mailman/openvpn-users/thread/CAEsd45T%2Bd6FUJ9Po0KHwtHjfuL9Q2D-poG8yFtY45Qyh%2BtHjkg%40mail.gmail.com/#msg36136236 > > > https://sourceforge.net/p/openvpn/mailman/openvpn-devel/thread/CAKuzo_jPThhvXTJAtzhqVUVOLPW1VGu6h2jQhVsHicY8P2WRqA%40mail.gmail.com/#msg36141193 > > That was in Nov-Dec 2017. Actually, I was also thinking of reviving this > only the other day when intimating users about some updates came up.. > Somehow such itches re-surface at the end of the year :) > > sorry to chip on so late, but at some point we did have a way to push env > vars to the client (back in v2.2 at least): > > inside a client-connect script you can/could do > > echo "push \"setenv-safe MSG1 'hello'\"" > $1 > echo "push \"setenv-safe MSG2 'download version 2.5 please'\"" >> $1 > setenv-safe is not passed on to the UI/GUI, so not very useful for sending messages to the user. In fact we already use echo to send env variables to the UI -- OpenVPN-GUI interprets push "echo setenv foo bar" and passes it in the env to scripts run by the GUI. See https://github.com/OpenVPN/openvpn-gui/pull/200 In one of our setups we use it to pass file server names, SMB shares to map etc. Among options that already exist, "echo" is the best candidate for this purpose, and it's designed for sending "commands" (which could be messages) from server to client side UI. It's use only requires an agreement on the syntax so that all UI authors can code to interpret them consistently. I find it hard to imagine why everyone seems to be avoiding "echo" and trying to find alternatives. Selva
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