From 6535dbeb4c025fe68c4c2700149dc49de0ba553c Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Tue, 18 Jun 2019 22:30:10 -0400
Subject: avoid hard-coded IP address for nbd server

---
 initramfs-tools/scripts/samizdat | 40 ++++++++++++----------------------------
 1 file changed, 12 insertions(+), 28 deletions(-)

(limited to 'initramfs-tools/scripts/samizdat')

diff --git a/initramfs-tools/scripts/samizdat b/initramfs-tools/scripts/samizdat
index 1e333f4..0abe902 100644
--- a/initramfs-tools/scripts/samizdat
+++ b/initramfs-tools/scripts/samizdat
@@ -1,5 +1,8 @@
 klogd -c1 # TODO: This should be even earlier.  Can it go on the kernel command line?
 
+. common.sh
+debug_log samizdat.init
+
 mountroot()
 {
   openvt -c 13 sh
@@ -7,15 +10,17 @@ mountroot()
   mkfifo "$MENUFIFO"
   samizdat_install_udev_rules
 
-  if [ "${nbdroot%%,*}" ]; then
+  if [ "$nbdroot" ]; then
+      configure_networking
+      export ROOTSERVER
+
       (. common.sh
-       sh /scripts/local-top/nbd >/dev/null 2>&1;
+       debug_log samizdat.nbd
+       . /scripts/local-top/nbd
        bootdone nbd-script) &
-  fi
 
-  if ! cdrom_has_keys && keys_via_network; then
       bootwait nbd-script
-      wait_for_gnupghome_tar "$tftp_key_server"
+      wait_for_gnupghome_tar
   fi
 
   bootwait samizdat-gpg
@@ -31,38 +36,17 @@ cdrom_has_keys()
     [ -d /cdrom/gnupghome ]
 }
 
-# Sets $tftp_key_server or returns false.
-keys_via_network()
-{
-    [ "${nbdroot%%,*}" ] || return
-    local arg cmdline
-    read cmdline < /proc/cmdline
-    for arg in $cmdline; do
-        case "$arg" in
-            netkeys)
-                tftp_key_server="${nbdroot%%/*}"
-                return 0
-            ;;
-            netkeys=*)
-                tftp_key_server="${arg#netkeys=}"
-                return 0
-            ;;
-        esac
-    done
-    return 1
-}
-
 wait_for_gnupghome_tar()
 {
-  local tftp_server="$1"
   [ -e /gnupghome.tar ] && return
   echo -n Waiting to receive GPG keys through the network...
-  (while ! tftp -g -r gnupghome.tar -l /gnupghome.tar.$$ "$tftp_server" 2>/dev/null; do
+  (while ! tftp -g -r gnupghome.tar -l /gnupghome.tar.$$ "$ROOTSERVER" 2>/run/initramfs/samizdat/log/tftp.$$.log; do
     sleep 1;
     echo -n .
   done
   mv /gnupghome.tar.$$ /gnupghome.tar)
   echo '  done.'
+  (sleep 5; echo ) &
   (. common.sh && . btrfs-create.sh && init_gpg)
 }
 
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