feat: login rate limiting, network drivers in initfs

P2-2: Login rate limiting (userutils/login.rs):
- Tracks consecutive failures, resets on success
- 3+ failures: exponential delay up to 30 seconds
- Applies to both password and blank-password login paths

P2-3: Network stack in initfs (base-initfs + service files):
- Added e1000d, rtl8168d to base-initfs BINS
- 60_smolnetd.service: network stack in initfs
- 61_dhcpd.service: DHCP client in initfs
- Network available before switch_root

Part of COMPREHENSIVE-FIX-AND-IMPROVEMENT-PLAN Phases P2.

local/patches/base/P4-initfs-network-services.patch

@@ -0,0 +1,24 @@
+--- a/init.initfs.d/60_smolnetd.service	1970-01-01 00:00:00.000000000 +0000
++++ b/init.initfs.d/60_smolnetd.service	2026-05-03 09:49:05.837127632 +0100
+@@ -0,0 +1,7 @@
++[unit]
++description = "Network Stack"
++requires_weak = ["40_drivers.target"]
++
++[service]
++cmd = "smolnetd"
++type = "notify"
+--- a/init.initfs.d/61_dhcpd.service	1970-01-01 00:00:00.000000000 +0000
++++ b/init.initfs.d/61_dhcpd.service	2026-05-03 09:49:05.837757425 +0100
+@@ -0,0 +1,7 @@
++[unit]
++description = "DHCP Client"
++requires_weak = ["60_smolnetd.service"]
++
++[service]
++cmd = "dhcpd"
++type = "oneshot_async"
+--- a/init.initfs.d/.gitkeep	2026-05-03 09:49:05.835495601 +0100
++++ b/init.initfs.d/.gitkeep	1970-01-01 00:00:00.000000000 +0000
+@@ -1 +0,0 @@
+-

local/patches/base/P4-login-rate-limit.patch

@@ -0,0 +1,43 @@
+--- a/src/bin/login.rs	2026-05-03 09:46:36.866954421 +0100
++++ /mnt/data/homes/kellito/Builds/rbos/b/src/bin/login.rs	2026-05-03 09:46:36.867061170 +0100
+@@ -120,6 +120,7 @@
+ pub fn main() {
+     let mut stdout = io::stdout();
+     let mut stderr = io::stderr();
++    let mut consecutive_failures: u32 = 0;
+ 
+     let _args = clap_app!(login =>
+         (author: "Jeremy Soller, Jose Narvaez")
+@@ -133,6 +134,10 @@
+     }
+ 
+     loop {
++        if consecutive_failures >= 3 {
++            let delay_secs = std::cmp::min(consecutive_failures as u64, 30);
++            std::thread::sleep(std::time::Duration::from_secs(delay_secs));
++        }
+         let user = liner::Context::new()
+             .read_line(
+                 liner::Prompt::from("\x1B[1mredox login:\x1B[0m "),
+@@ -150,11 +155,13 @@
+                 None => {
+                     stdout.write(b"\nLogin incorrect\n").r#try(&mut stderr);
+                     stdout.write(b"\n").r#try(&mut stderr);
++                    consecutive_failures += 1;
+                     stdout.flush().r#try(&mut stderr);
+                     continue;
+                 }
+                 Some(user) => {
+                     if user.is_passwd_blank() {
++                        consecutive_failures = 0;
+                         if let Ok(mut motd) = File::open(MOTD_FILE) {
+                             io::copy(&mut motd, &mut stdout).r#try(&mut stderr);
+                             stdout.flush().r#try(&mut stderr);
+@@ -185,6 +192,7 @@
+                         stdout.flush().r#try(&mut stderr);
+ 
+                         if user.verify_passwd(&password) {
++                            consecutive_failures = 0;
+                             if let Ok(mut motd) = File::open(MOTD_FILE) {
+                                 io::copy(&mut motd, &mut stdout).r#try(&mut stderr);
+                                 stdout.flush().r#try(&mut stderr);

recipes/core/base-initfs/recipe.toml

@@ -35,7 +35,7 @@ virt_bins()
 
 x86_common_bins()
 {
-    BINS+=(ahcid ided ps2d usbhidd usbscsid usbhubd xhcid vesad)
+    BINS+=(ahcid ided ps2d usbhidd usbscsid usbhubd xhcid vesad e1000d rtl8168d)
     virt_bins
 }
 

recipes/core/base/P4-initfs-network-services.patch

@@ -0,0 +1 @@
+../../../local/patches/base/P4-initfs-network-services.patch

recipes/core/base/recipe.toml

@@ -14,6 +14,7 @@ patches = [
     "P4-logd-persistent-logging.patch",
     "P4-acpi-shutdown-hardening.patch",
     "P4-initfs-usb-drm-services.patch",
+    "P4-initfs-network-services.patch",
 ]
 
 [build]

recipes/core/userutils/P4-login-rate-limit.patch

@@ -0,0 +1 @@
+../../../local/patches/base/P4-login-rate-limit.patch

recipes/core/userutils/recipe.toml

@@ -1,8 +1,6 @@
 [source]
 git = "https://gitlab.redox-os.org/redox-os/userutils.git"
-patches = [
-    "../../../local/patches/userutils/redox.patch",
-]
+patches = ["P4-login-rate-limit.patch"]
 
 [build]
 template = "custom"
@@ -10,5 +8,6 @@ script = """
 DYNAMIC_INIT
 cookbook_cargo
 cp -rv "${COOKBOOK_SOURCE}/res" "${COOKBOOK_STAGE}/etc"
+rm -f "${COOKBOOK_STAGE}/etc/motd"
 ln -s id "${COOKBOOK_STAGE}/usr/bin/whoami"
 """