lbmap：Port information display error

[Jianlin-lv]

• Cilium version: master latest version
• Kernel version
  uname -a
  Linux jianlin 5.9.0-rc1+ Implementing REST API and respective tests #3 SMP Thu Aug 20 09:05:37 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux

The endianness of my test environment is little endian;
The port information displayed by given maps(cilium_lb4_services_v2/cilium_lb4_backends/cilium_lb4_reverse_nat) is incorrect;
The port info is stored in network byte order;

root@jianlin:/home/jianlin/code/cilium-install# lscpu |grep Endian
Byte Order:                      Little Endian
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- cilium map get cilium_lb4_services_v2
Key                    Value                    State   Error
172.16.1.236:20480     0 (1024) [FLAGS: 0x40]   sync
10.169.208.214:21630   0 (1280) [FLAGS: 0x42]   sync
0.0.0.0:21630          0 (1536) [FLAGS: 0x2]    sync
172.16.1.1:47873       0 (256) [FLAGS: 0x40]    sync
172.16.1.10:49443      0 (768) [FLAGS: 0x40]    sync
172.16.1.10:13568      0 (512) [FLAGS: 0x40]    sync
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- cilium map get cilium_lb4_backends
Key   Value                    State   Error
6     ANY://10.0.0.89:20480    sync
7     ANY://10.0.1.230:20480   sync
8     ANY://10.0.1.219:20480   sync
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- cilium map get cilium_lb4_reverse_nat
Key    Value                  State   Error
1280   10.169.208.214:21630   sync
1536   0.0.0.0:21630          sync
256    172.16.1.1:47873       sync
768    172.16.1.10:49443      sync
512    172.16.1.10:13568      sync
1024   172.16.1.236:20480     sync
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- cilium service list
ID   Frontend               Service Type   Backend
1    172.16.1.1:443         ClusterIP      1 => 10.169.208.214:6443
2    172.16.1.10:53         ClusterIP      1 => 10.0.0.85:53
                                           2 => 10.0.0.100:53
3    172.16.1.10:9153       ClusterIP      1 => 10.0.0.85:9153
                                           2 => 10.0.0.100:9153
4    172.16.1.236:80        ClusterIP      1 => 10.0.0.89:80
                                           2 => 10.0.1.230:80
                                           3 => 10.0.1.219:80
5    10.169.208.214:32340   NodePort       1 => 10.0.0.89:80
                                           2 => 10.0.1.230:80
                                           3 => 10.0.1.219:80
6    0.0.0.0:32340          NodePort       1 => 10.0.0.89:80
                                           2 => 10.0.1.230:80
                                           3 => 10.0.1.219:80

*************************************************

root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- bpftool map dump pinned /sys/fs/bpf/tc/globals/cilium_lb4_services_v2
key: 00 00 00 00 7e 54 01 00  00 00 00 00  value: 06 00 00 00 00 00 00 06  00 00 00 00
key: 00 00 00 00 7e 54 00 00  00 00 00 00  value: 00 00 00 00 03 00 00 06  02 00 00 00
key: 00 00 00 00 7e 54 03 00  00 00 00 00  value: 08 00 00 00 00 00 00 06  00 00 00 00
key: 0a a9 d0 d6 7e 54 01 00  00 00 00 00  value: 07 00 00 00 00 00 00 05  00 00 00 00
key: 00 00 00 00 7e 54 02 00  00 00 00 00  value: 07 00 00 00 00 00 00 06  00 00 00 00
key: ac 10 01 0a 00 35 00 00  00 00 00 00  value: 00 00 00 00 02 00 00 02  40 00 00 00
key: 0a a9 d0 d6 7e 54 00 00  00 00 00 00  value: 00 00 00 00 03 00 00 05  42 00 00 00
key: ac 10 01 0a 23 c1 00 00  00 00 00 00  value: 00 00 00 00 02 00 00 03  40 00 00 00
key: ac 10 01 ec 00 50 02 00  00 00 00 00  value: 07 00 00 00 00 00 00 04  00 00 00 00
key: ac 10 01 0a 23 c1 02 00  00 00 00 00  value: 05 00 00 00 00 00 00 03  00 00 00 00
key: ac 10 01 01 01 bb 00 00  00 00 00 00  value: 00 00 00 00 01 00 00 01  40 00 00 00
key: 0a a9 d0 d6 7e 54 03 00  00 00 00 00  value: 06 00 00 00 00 00 00 05  00 00 00 00
key: ac 10 01 0a 00 35 01 00  00 00 00 00  value: 02 00 00 00 00 00 00 02  00 00 00 00
key: 0a a9 d0 d6 7e 54 02 00  00 00 00 00  value: 08 00 00 00 00 00 00 05  00 00 00 00
key: ac 10 01 0a 23 c1 01 00  00 00 00 00  value: 03 00 00 00 00 00 00 03  00 00 00 00
key: ac 10 01 0a 00 35 02 00  00 00 00 00  value: 04 00 00 00 00 00 00 02  00 00 00 00
key: ac 10 01 ec 00 50 00 00  00 00 00 00  value: 00 00 00 00 03 00 00 04  40 00 00 00
key: ac 10 01 01 01 bb 01 00  00 00 00 00  value: 01 00 00 00 00 00 00 01  00 00 00 00
key: ac 10 01 ec 00 50 03 00  00 00 00 00  value: 08 00 00 00 00 00 00 04  00 00 00 00
key: ac 10 01 ec 00 50 01 00  00 00 00 00  value: 06 00 00 00 00 00 00 04  00 00 00 00
Found 20 elements
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- bpftool map dump pinned /sys/fs/bpf/tc/globals/cilium_lb4_backends
key: 02 00  value: 0a 00 00 55 00 35 00 00
key: 01 00  value: 0a a9 d0 d6 19 2b 00 00
key: 04 00  value: 0a 00 00 64 00 35 00 00
key: 08 00  value: 0a 00 01 db 00 50 00 00
key: 03 00  value: 0a 00 00 55 23 c1 00 00
key: 05 00  value: 0a 00 00 64 23 c1 00 00
key: 07 00  value: 0a 00 01 e6 00 50 00 00
key: 06 00  value: 0a 00 00 59 00 50 00 00
Found 8 elements
root@jianlin:/home/jianlin/code/cilium-install# kubectl exec -it -n kube-system cilium-5dmnz -- bpftool map dump pinned /sys/fs/bpf/tc/globals/cilium_lb4_reverse_nat
key: 00 05  value: 0a a9 d0 d6 7e 54
key: 00 01  value: ac 10 01 01 01 bb
key: 00 06  value: 00 00 00 00 7e 54
key: 00 04  value: ac 10 01 ec 00 50
key: 00 02  value: ac 10 01 0a 00 35
key: 00 03  value: ac 10 01 0a 23 c1
Found 6 elements