[pve-devel] [PATCH installer] auto: answer: netif pinning: transform mac addresses into lowercase

[Christoph Heiss]

Users may specify MAC addresses in the network interface pinning map in
an uppercase format, which is more common than lowercase in some
environments.

This would then cause the auto-installer to mistakenly consider these
addresses as unknown - thus just unconditionally convert all MAC
addresses to lowercase while parsing.

Reported-by: Aaron Lauterer <a.lauterer at proxmox.com>
Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
 proxmox-auto-installer/src/answer.rs          |  7 ++++-
 proxmox-auto-installer/tests/parse-answer.rs  |  1 +
 ...terface_pinning_uppercase_mac_address.json | 30 +++++++++++++++++++
 ...terface_pinning_uppercase_mac_address.toml | 22 ++++++++++++++
 4 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.json
 create mode 100644 proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.toml

diff --git a/proxmox-auto-installer/src/answer.rs b/proxmox-auto-installer/src/answer.rs
index 1e455ca..d12e088 100644
--- a/proxmox-auto-installer/src/answer.rs
+++ b/proxmox-auto-installer/src/answer.rs
@@ -225,8 +225,13 @@ impl TryFrom<NetworkInAnswer> for Network {
         let interface_name_pinning = match network.interface_name_pinning {
             Some(opts) if opts.enabled => {
                 let opts = NetworkInterfacePinningOptions {
-                    mapping: opts.mapping,
+                    mapping: opts
+                        .mapping
+                        .iter()
+                        .map(|(k, v)| (k.to_lowercase(), v.clone()))
+                        .collect(),
                 };
+
                 opts.verify()?;
                 Some(opts)
             }
diff --git a/proxmox-auto-installer/tests/parse-answer.rs b/proxmox-auto-installer/tests/parse-answer.rs
index 696fe1f..7dd4a9d 100644
--- a/proxmox-auto-installer/tests/parse-answer.rs
+++ b/proxmox-auto-installer/tests/parse-answer.rs
@@ -130,6 +130,7 @@ mod tests {
             hashed_root_password,
             minimal,
             network_interface_pinning,
+            network_interface_pinning_uppercase_mac_address,
             nic_matching,
             specific_nic,
             zfs,
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.json b/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.json
new file mode 100644
index 0000000..76723c8
--- /dev/null
+++ b/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.json
@@ -0,0 +1,30 @@
+{
+  "autoreboot": 1,
+  "cidr": "192.168.1.114/24",
+  "country": "at",
+  "dns": "192.168.1.254",
+  "domain": "testinstall",
+  "filesys": "ext4",
+  "gateway": "192.168.1.1",
+  "hdsize": 223.57088470458984,
+  "existing_storage_auto_rename": 1,
+  "hostname": "pveauto",
+  "keymap": "de",
+  "mailto": "mail at no.invalid",
+  "mngmt_nic": "mgmt",
+  "network_interface_pin_map": {
+    "1c:34:da:5c:5e:24": "nic2",
+    "1c:34:da:5c:5e:25": "nic3",
+    "24:8a:07:1e:05:bc": "lan0",
+    "24:8a:07:1e:05:bd": "lan1",
+    "5a:47:32:dd:c7:47": "nic8",
+    "a0:36:9f:0a:b3:82": "nic6",
+    "a0:36:9f:0a:b3:83": "nic7",
+    "b4:2e:99:ac:ad:b4": "mgmt",
+    "b4:2e:99:ac:ad:b5": "nic1"
+  },
+  "root_password": { "plain": "12345678" },
+  "target_hd": "/dev/sda",
+  "timezone": "Europe/Vienna",
+  "first_boot": { "enabled": 0 }
+}
diff --git a/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.toml b/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.toml
new file mode 100644
index 0000000..6681fe9
--- /dev/null
+++ b/proxmox-auto-installer/tests/resources/parse_answer/network_interface_pinning_uppercase_mac_address.toml
@@ -0,0 +1,22 @@
+[global]
+keyboard = "de"
+country = "at"
+fqdn = "pveauto.testinstall"
+mailto = "mail at no.invalid"
+timezone = "Europe/Vienna"
+root-password = "12345678"
+
+[network]
+source = "from-dhcp"
+
+[network.interface-name-pinning]
+enabled = true
+
+[network.interface-name-pinning.mapping]
+"24:8A:07:1E:05:BC" = "lan0"
+"24:8A:07:1E:05:BD" = "lan1"
+"B4:2E:99:AC:AD:B4" = "mgmt"
+
+[disk-setup]
+filesystem = "ext4"
+disk-list = ["sda"]
-- 
2.52.0