net: Depend on iproute2's ip instead of net-tools ifconfig or route

The net-tools package is deprecated and will eventually be dropped.  Use
"ip route", "link" or "address" instead of "ifconfig" or "route" calls.
Cloud-init can now run in an environment that no longer has net-tools.
This affects the network and route printing emitted to
cloud-config-output.log as well as the cc_disable_ec2_metadata module.

Additional changes:
 - separate readResource and resourceLocation into standalone test
   functions
 - Fix ipv4 address rows to report scopes represented by ip addr show
 - Formatted route/address ouput now handles multiple ipv4 and ipv6
   addresses on a single interface

Co-authored-by: James Hogarth <james.hogarth@gmail.com>
Co-authored-by: Robert Schweikert <rjschwei@suse.com>

9 files changed, 113 insertions, 0 deletions

diff --git a/tests/data/netinfo/netdev-formatted-output b/tests/data/netinfo/netdev-formatted-output
new file mode 100644
index 00000000..283ab4a4
--- /dev/null
+++ b/tests/data/netinfo/netdev-formatted-output
@@ -0,0 +1,10 @@
++++++++++++++++++++++++++++++++++++++++Net device info++++++++++++++++++++++++++++++++++++++++
++---------+------+------------------------------+---------------+--------+-------------------+
+|  Device |  Up  |           Address            |      Mask     | Scope  |     Hw-Address    |
++---------+------+------------------------------+---------------+--------+-------------------+
+| enp0s25 | True |         192.168.2.18         | 255.255.255.0 |   .    | 50:7b:9d:2c:af:91 |
+| enp0s25 | True | fe80::7777:2222:1111:eeee/64 |       .       | global | 50:7b:9d:2c:af:91 |
+| enp0s25 | True | fe80::8107:2b92:867e:f8a6/64 |       .       |  link  | 50:7b:9d:2c:af:91 |
+|    lo   | True |          127.0.0.1           |   255.0.0.0   |   .    |         .         |
+|    lo   | True |           ::1/128            |       .       |  host  |         .         |
++---------+------+------------------------------+---------------+--------+-------------------+
diff --git a/tests/data/netinfo/new-ifconfig-output b/tests/data/netinfo/new-ifconfig-output
new file mode 100644
index 00000000..83d4ad16
--- /dev/null
+++ b/tests/data/netinfo/new-ifconfig-output
@@ -0,0 +1,18 @@
+enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
+        inet 192.168.2.18  netmask 255.255.255.0  broadcast 192.168.2.255
+        inet6 fe80::7777:2222:1111:eeee  prefixlen 64  scopeid 0x30<global>
+        inet6 fe80::8107:2b92:867e:f8a6  prefixlen 64  scopeid 0x20<link>
+        ether 50:7b:9d:2c:af:91  txqueuelen 1000  (Ethernet)
+        RX packets 3017  bytes 10601563 (10.1 MiB)
+        RX errors 0  dropped 39  overruns 0  frame 0
+        TX packets 2627  bytes 196976 (192.3 KiB)
+        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
+
+lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
+        inet 127.0.0.1  netmask 255.0.0.0
+        inet6 ::1  prefixlen 128  scopeid 0x10<host>
+        loop  txqueuelen 1  (Local Loopback)
+        RX packets 0  bytes 0 (0.0 B)
+        RX errors 0  dropped 0  overruns 0  frame 0
+        TX packets 0  bytes 0 (0.0 B)
+        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
diff --git a/tests/data/netinfo/old-ifconfig-output b/tests/data/netinfo/old-ifconfig-output
new file mode 100644
index 00000000..e01f763e
--- /dev/null
+++ b/tests/data/netinfo/old-ifconfig-output
@@ -0,0 +1,18 @@
+enp0s25   Link encap:Ethernet  HWaddr 50:7b:9d:2c:af:91
+          inet addr:192.168.2.18  Bcast:192.168.2.255  Mask:255.255.255.0
+          inet6 addr: fe80::7777:2222:1111:eeee/64 Scope:Global
+          inet6 addr: fe80::8107:2b92:867e:f8a6/64 Scope:Link
+          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
+          RX packets:8106427 errors:55 dropped:0 overruns:0 frame:37
+          TX packets:9339739 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:1000
+          RX bytes:4953721719 (4.9 GB)  TX bytes:7731890194 (7.7 GB)
+          Interrupt:20 Memory:e1200000-e1220000
+
+lo        Link encap:Local Loopback
+          inet addr:127.0.0.1  Mask:255.0.0.0
+          inet6 addr: ::1/128 Scope:Host
+          UP LOOPBACK RUNNING  MTU:65536  Metric:1
+          RX packets:579230851 errors:0 dropped:0 overruns:0 frame:0
+          TX packets:579230851 errors:0 dropped:0 overruns:0 carrier:0
+          collisions:0 txqueuelen:1
diff --git a/tests/data/netinfo/route-formatted-output b/tests/data/netinfo/route-formatted-output
new file mode 100644
index 00000000..9d2c5dd3
--- /dev/null
+++ b/tests/data/netinfo/route-formatted-output
@@ -0,0 +1,22 @@
++++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++
++-------+-------------+-------------+---------------+-----------+-------+
+| Route | Destination |   Gateway   |    Genmask    | Interface | Flags |
++-------+-------------+-------------+---------------+-----------+-------+
+|   0   |   0.0.0.0   | 192.168.2.1 |    0.0.0.0    |  enp0s25  |   UG  |
+|   1   |   0.0.0.0   | 192.168.2.1 |    0.0.0.0    |   wlp3s0  |   UG  |
+|   2   | 192.168.2.0 |   0.0.0.0   | 255.255.255.0 |  enp0s25  |   U   |
++-------+-------------+-------------+---------------+-----------+-------+
++++++++++++++++++++++++++++++++++++Route IPv6 info+++++++++++++++++++++++++++++++++++
++-------+---------------------------+---------------------------+-----------+-------+
+| Route |        Destination        |          Gateway          | Interface | Flags |
++-------+---------------------------+---------------------------+-----------+-------+
+|   0   |  2a00:abcd:82ae:cd33::657 |             ::            |  enp0s25  |   Ue  |
+|   1   |  2a00:abcd:82ae:cd33::/64 |             ::            |  enp0s25  |   U   |
+|   2   |  2a00:abcd:82ae:cd33::/56 | fe80::32ee:54de:cd43:b4e1 |  enp0s25  |   UG  |
+|   3   |     fd81:123f:654::657    |             ::            |  enp0s25  |   U   |
+|   4   |     fd81:123f:654::/64    |             ::            |  enp0s25  |   U   |
+|   5   |     fd81:123f:654::/48    | fe80::32ee:54de:cd43:b4e1 |  enp0s25  |   UG  |
+|   6   | fe80::abcd:ef12:bc34:da21 |             ::            |  enp0s25  |   U   |
+|   7   |         fe80::/64         |             ::            |  enp0s25  |   U   |
+|   8   |            ::/0           | fe80::32ee:54de:cd43:b4e1 |  enp0s25  |   UG  |
++-------+---------------------------+---------------------------+-----------+-------+
diff --git a/tests/data/netinfo/sample-ipaddrshow-output b/tests/data/netinfo/sample-ipaddrshow-output
new file mode 100644
index 00000000..b2fa2672
--- /dev/null
+++ b/tests/data/netinfo/sample-ipaddrshow-output
@@ -0,0 +1,13 @@
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
+    inet 127.0.0.1/8 scope host lo\       valid_lft forever preferred_lft forever
+    inet6 ::1/128 scope host \       valid_lft forever preferred_lft forever
+2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
+    link/ether 50:7b:9d:2c:af:91 brd ff:ff:ff:ff:ff:ff
+    inet 192.168.2.18/24 brd 192.168.2.255 scope global dynamic enp0s25
+       valid_lft 84174sec preferred_lft 84174sec
+    inet6 fe80::7777:2222:1111:eeee/64 scope global
+       valid_lft forever preferred_lft forever
+    inet6 fe80::8107:2b92:867e:f8a6/64 scope link
+       valid_lft forever preferred_lft forever
+
diff --git a/tests/data/netinfo/sample-iproute-output-v4 b/tests/data/netinfo/sample-iproute-output-v4
new file mode 100644
index 00000000..904cb034
--- /dev/null
+++ b/tests/data/netinfo/sample-iproute-output-v4
@@ -0,0 +1,3 @@
+default via 192.168.2.1 dev enp0s25 proto static metric 100
+default via 192.168.2.1 dev wlp3s0 proto static metric 150
+192.168.2.0/24 dev enp0s25 proto kernel scope link src 192.168.2.18 metric 100
diff --git a/tests/data/netinfo/sample-iproute-output-v6 b/tests/data/netinfo/sample-iproute-output-v6
new file mode 100644
index 00000000..12bb1c12
--- /dev/null
+++ b/tests/data/netinfo/sample-iproute-output-v6
@@ -0,0 +1,11 @@
+2a00:abcd:82ae:cd33::657 dev enp0s25 proto kernel metric 256 expires 2334sec pref medium
+2a00:abcd:82ae:cd33::/64 dev enp0s25 proto ra metric 100 pref medium
+2a00:abcd:82ae:cd33::/56 via fe80::32ee:54de:cd43:b4e1 dev enp0s25 proto ra metric 100 pref medium
+fd81:123f:654::657 dev enp0s25 proto kernel metric 256 pref medium
+fd81:123f:654::/64 dev enp0s25 proto ra metric 100 pref medium
+fd81:123f:654::/48 via fe80::32ee:54de:cd43:b4e1 dev enp0s25 proto ra metric 100 pref medium
+fe80::abcd:ef12:bc34:da21 dev enp0s25 proto static metric 100 pref medium
+fe80::/64 dev enp0s25 proto kernel metric 256 pref medium
+default via fe80::32ee:54de:cd43:b4e1 dev enp0s25 proto static metric 100 pref medium
+local ::1 dev lo  table local  proto none  metric 0  pref medium
+local 2600:1f16:b80:ad00:90a:c915:bca6:5ff2 dev lo  table local  proto none  metric 0  pref medium
diff --git a/tests/data/netinfo/sample-route-output-v4 b/tests/data/netinfo/sample-route-output-v4
new file mode 100644
index 00000000..ecc31d96
--- /dev/null
+++ b/tests/data/netinfo/sample-route-output-v4
@@ -0,0 +1,5 @@
+Kernel IP routing table
+Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
+0.0.0.0         192.168.2.1     0.0.0.0         UG        100 0          0 enp0s25
+0.0.0.0         192.168.2.1     0.0.0.0         UG        150 0          0 wlp3s0
+192.168.2.0     0.0.0.0         255.255.255.0   U         100 0          0 enp0s25
diff --git a/tests/data/netinfo/sample-route-output-v6 b/tests/data/netinfo/sample-route-output-v6
new file mode 100644
index 00000000..4712b73c
--- /dev/null
+++ b/tests/data/netinfo/sample-route-output-v6
@@ -0,0 +1,13 @@
+Kernel IPv6 routing table
+Destination                     Next Hop                   Flag Met Re  Use If
+2a00:abcd:82ae:cd33::657/128    ::                         Ue   256 1     0 enp0s25
+2a00:abcd:82ae:cd33::/64        ::                         U    100 1     0 enp0s25
+2a00:abcd:82ae:cd33::/56        fe80::32ee:54de:cd43:b4e1  UG   100 1     0 enp0s25
+fd81:123f:654::657/128          ::                         U    256 1     0 enp0s25
+fd81:123f:654::/64              ::                         U    100 1     0 enp0s25
+fd81:123f:654::/48              fe80::32ee:54de:cd43:b4e1  UG   100 1     0 enp0s25
+fe80::abcd:ef12:bc34:da21/128   ::                         U    100 1     2 enp0s25
+fe80::/64                       ::                         U    256 1 16880 enp0s25
+::/0                            fe80::32ee:54de:cd43:b4e1  UG   100 1     0 enp0s25
+::/0                            ::                         !n   -1  1424956 lo
+::1/128                         ::                         Un   0   4 26289 lo