base: apply Red Bear patches on latest upstream/main

251 files: init, acpid, ipcd, netcfg, ihdgd, virtio-gpud, scheme-utils,
inputd, block driver, ptyd, ramfs, randd, initfs bootstrap, path deps,
version +rb0.3.1, author attribution

netstack/src/port_set.rs

@@ -47,6 +47,16 @@ impl PortSet {
         }
     }
 
+    /// Increment the reference count for an already-claimed port (SO_REUSEADDR).
+    /// Always succeeds: the caller has indicated SO_REUSEADDR is set, so
+    /// multiple sockets are allowed to bind to the same port. The actual
+    /// collision check (returning EADDRINUSE) is done by `claim_port` first.
+    /// Returns true on success.
+    pub fn claim_port_reuse(&mut self, port: u16) -> bool {
+        self.ports.entry(port).and_modify(|c| *c += 1).or_insert(1);
+        true
+    }
+
     pub fn acquire_port(&mut self, port: u16) {
         *self.ports.entry(port).or_insert(0) += 1;
     }