[PATCH proxmox 03/13] iproute2: add support for parsing interface flags

[Stefan Hanreich <s.hanreich@proxmox.com>]

Interface flags were not available in the parsed ip link output. The
flags are required for determining the status of some interfaces,
since WireGuard for example always sets the operating state to
UNKNOWN, even if the interface is up and working.

Signed-off-by: Stefan Hanreich <s.hanreich@proxmox.com>
---
 proxmox-iproute2/src/lib.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/proxmox-iproute2/src/lib.rs b/proxmox-iproute2/src/lib.rs
index f00d3475..1a7efd7e 100644
--- a/proxmox-iproute2/src/lib.rs
+++ b/proxmox-iproute2/src/lib.rs
@@ -64,6 +64,21 @@ pub enum Link {
     Unknown(UnknownLink),
 }
 
+#[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, serde::Deserialize)]
+#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
+pub enum LinkFlag {
+    Pointopoint,
+    Noarp,
+    Up,
+    LowerUp,
+    Broadcast,
+    Multicast,
+    Loopback,
+    Promisc,
+    #[serde(untagged)]
+    Unknown(String),
+}
+
 /// An IpLink entry, as returned by `ip -details -json link show`.
 ///
 /// For now this parses only the fields that are used throughout our stack, the fields of this
@@ -79,6 +94,8 @@ pub struct IpLink {
     link_type: Link,
     linkinfo: Option<LinkInfo>,
     operstate: String,
+    #[serde(default)]
+    flags: Vec<LinkFlag>,
 }
 
 impl IpLink {
@@ -148,6 +165,11 @@ impl IpLink {
         self.altnames.iter()
     }
 
+    /// Returns the flags of this interface
+    pub fn flags(&self) -> impl Iterator<Item = &LinkFlag> {
+        self.flags.iter()
+    }
+
     /// Returns whether the interface is currently in an UP state.
     pub fn active(&self) -> bool {
         self.operstate == "UP"
-- 
2.47.3