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feat: refactor du plan IP

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catvayor 2024-04-18 11:41:37 +02:00
parent 2329799c87
commit 93bf6f8baa
2 changed files with 83 additions and 4 deletions
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70
machines/vault01/k-radius/site-dhcp.nix Normal file
View file

@ -0,0 +1,70 @@
let
listen = vlan: ''
listen {
type = dhcp
ipaddr = 10.0.0.1
src_ipaddr = 10.0.0.1
port = 67
interface = vlan-user-${vlan}
broadcast = no #?
performance {
skip_duplicate_checks = no
}
# we store servIP so that latter modules can know with wich IP reply
update control {
&Client-Vlan = ${vlan}
}
}
'';
dhcpCommon = ''
update reply {
&DHCP-Domain-Name-Server = 10.0.0.1
&DHCP-Subnet-Mask = 255.255.128.0 # /17 ?????????
&DHCP-Router-Address = &control:Server-IP
&DHCP-Broadcast-Address = 10.0.127.255 # ???????
&DHCP-IP-Address-Lease-Time = 7200
&DHCP-DHCP-Server-Identifier = 10.0.0.1
}
'';
dhcpDiscover = ''
dhcp DHCP-Discover {
${dhcpCommon}
update control {
&Pool-Name := "pool-%{&control:Client-Vlan}"
}
dhcp_sqlippool
if (notfound) {
do_not_respond #TODO not silent
}
ok
}
'';
dhcpRequest = ''
dhcp DHCP-Request {
if (&request:DHCP-DHCP-Server-Identifier && \
&request:DHCP-DHCP-Server-Identifier != &control:Server-IP) {
do_not_respond
}
${dhcpCommon}
update control {
&Pool-Name := "pool-%{&control:Client-Vlan}"
}
dhcp_sqlippool_request
if (notfound) {
do_not_respond #TODO not silent
}
ok
}
'';
in
''
server dhcp {
${builtins.concatStringsSep "\n\n" (map listen [ ])}
${dhcpDiscover}
${dhcpRequest}
}
''

17
machines/vault01/networking.nix
View file

@ -38,15 +38,24 @@ let
mkUserVlan =
id:
let
vlan = 3245 + id;
prefix24nb = id / 32;
prefix29nb = (id - prefix24nb * 32) * 8;
# on alloue 10.0.0.0/17 aux thurnés, avec un /27 chacun, on garde 10.0.0.0/27 pour nous (routeur et autres)
vlan = 4094 - id;
prefix24nb = (id + 1) / 8;
prefix27nb = (id + 1 - prefix24nb * 8) * 32;
in
{
name = "vlan-user-${builtins.toString vlan}";
value = {
Id = vlan;
address = [ "10.0.${builtins.toString prefix24nb}.${builtins.toString (prefix29nb + 1)}/29" ];
extraNetwork.routes = [
{
routeConfig = {
Destination = "10.0.${builtins.toString prefix24nb}.${builtins.toString prefix27nb}/27";
Source = "10.0.0.1/17";
};
}
];
address = [ "10.0.0.1/17" ];
};
};