SDN/Tunnel status problem

M

MichiFry

Active Member
Jun 25, 2019
3
0
41
40
Hello,

my logfiles are currently flooded with this lines:
Jan 14 12:12:41 hpve1 pvestatd[3564]: sdn status update error: malformed JSON string, neither tag, array, object, number, string or atom, at character offset 0 (before "(end
of string)") at /usr/share/perl5/PVE/Network/SDN/Zones.pm line 202.
Jan 14 12:12:50 hpve1 pvestatd[3564]: sdn status update error: malformed JSON string, neither tag, array, object, number, string or atom, at character offset 0 (before "(end
of string)") at /usr/share/perl5/PVE/Network/SDN/Zones.pm line 202.
Jan 14 12:13:01 hpve1 pvestatd[3564]: sdn status update error: malformed JSON string, neither tag, array, object, number, string or atom, at character offset 0 (before "(end
of string)") at /usr/share/perl5/PVE/Network/SDN/Zones.pm line 202.
Jan 14 12:13:10 hpve1 pvestatd[3564]: sdn status update error: malformed JSON string, neither tag, array, object, number, string or atom, at character offset 0 (before "(end
of string)") at /usr/share/perl5/PVE/Network/SDN/Zones.pm line 202.
...


This line is generated because I added an gre tunnel. The tunnel and networking is working as expected, only Proxmox has a problem reading the current state.

Code: 
# ifquery -c -a -o json
error: main exception: 'IPNetwork' object has no attribute 'config'

# ifquery -c -o json gre1
error: main exception: 'IPNetwork' object has no attribute 'config'

# ifquery -c -o json vmbr0
[
  {
    "name": "vmbr0",
    "addr_method": "static",
    "addr_family": "inet",
    "auto": true,
    "config": {
      "bridge-ports": "enp7s0",
      "bridge-fd": "0",
      "bridge-stp": "no",
      "address": "x.x.x.x/x"
    },
    "config_status": {
      "bridge-ports": "pass",
      "bridge-fd": "pass",
      "bridge-stp": "pass",
      "address": "pass"
    },
    "status": "pass"
  }
]

The problem is ifquery with --check AND --json. With only one specified it is working:
Code: 
# ifquery -o json gre1
[
    {
        "name": "gre1",
        "addr_method": "tunnel",
        "addr_family": "inet",
        "auto": true,
        "config": {
            "address": "10.10.167.202/30",
            "tunnel-mode": "gre",
            "tunnel-local": "10.50.1.11",
            "tunnel-endpoint": "10.50.0.254",
            "tunnel-ttl": "255",
            "tunnel-dev": "enp7s0.4000",
            "mtu": "1375"
        }
    }
]


# ifquery -c gre1
auto gre1
iface gre1 inet tunnel                                              [pass]
        tunnel-mode gre                                             [pass]
        tunnel-local 10.50.1.11/32                                  [pass]
        tunnel-endpoint 10.50.0.254/32                              [pass]
        tunnel-ttl 255                                              [pass]
        tunnel-dev enp7s0.4000                                      [pass]
        mtu 1375                                                    [pass]
        address 10.10.167.202/30                                    [pass]

/etc/network/interfaces
Code: 
auto gre1
iface gre1 inet tunnel
        address 10.10.167.202/30
        tunnel-mode gre
        tunnel-local 10.50.1.11
        tunnel-endpoint 10.50.0.254
        tunnel-ttl 255
        tunnel-physdev enp7s0.4000
        mtu 1375

I also tried to switch it to an ipip tunnel, but the problem persists.
Latest Proxmox version with all updates installed.

What can I do?
Thank you!
 
Hi, this seems to be an issue with ifupdown2 - can you post the interfaces file that leads to this error?
 
/etc/network/interfaces
Code: 
auto lo
iface lo inet loopback

iface enp7s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address x.x.x.x/x
        gateway x.x.x.x
        bridge-ports enp7s0
        bridge-stp off
        bridge-fd 0


auto enp7s0.4000
iface enp7s0.4000 inet static
        address 10.50.1.11/24
        mtu 1400
        up ip route add 10.50.0.0/16 via 10.50.1.1 dev enp7s0.4000
        down ip route del 10.50.0.0/16 via 10.50.1.1 dev enp7s0.4000

auto gre1
iface gre1 inet tunnel
        address 10.10.167.202/30
        tunnel-mode gre
        tunnel-local 10.50.1.11
        tunnel-endpoint 10.50.0.254
        tunnel-ttl 255
        tunnel-physdev enp7s0.4000
        mtu 1375

source-directory /etc/network/interfaces.d/

/etc/network/interfaces.d/sdn
Code: 
#version:9

auto vnet10
iface vnet10
        address 10.10.161.254/24
        post-up iptables -t nat -A POSTROUTING -s '10.10.161.0/24' -o vmbr0 -j SNAT --to-source x.x.x.x
        post-down iptables -t nat -D POSTROUTING -s '10.10.161.0/24' -o vmbr0 -j SNAT --to-source x.x.x.x
        post-up iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1
        post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1
        bridge_ports none
        bridge_stp off
        bridge_fd 0
        alias mgmt
        ip-forward on

auto vnet11
iface vnet11
        address 10.10.162.254/24
        post-up iptables -t nat -A POSTROUTING -s '10.10.162.0/24' -o vmbr0 -j SNAT --to-source x.x.x.x
        post-down iptables -t nat -D POSTROUTING -s '10.10.162.0/24' -o vmbr0 -j SNAT --to-source x.x.x.x
        post-up iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1
        post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1
        bridge_ports none
        bridge_stp off
        bridge_fd 0
        alias server
        ip-forward on


I also tried it on a new install without anything else added, same problem:
Code: 
auto lo
iface lo inet loopback

auto enp7s0
iface enp7s0 inet static
        address x.x.x.x/x
        gateway x.x.x.x

auto gre1
iface gre1 inet tunnel
        address 10.10.167.202/30
        tunnel-mode gre
        tunnel-local 10.50.1.11
        tunnel-endpoint 10.50.0.254
        tunnel-ttl 255
        mtu 1375

Code: 
# ifquery -c -o json gre1
error: main exception: 'IPNetwork' object has no attribute 'config'


Also tried it without the "tunnel-" (only mode, local endpoint, ttl) and different combinations "tunnel-physdev", .. nothing helped.
But the gre tunnel always works :)
 
Yes, the issue is most likely in the ifquery tool itself, where the GRE status gets queried. Could you create a bug report on this? I'll try to look into it.
 
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