1 files changed, 80 insertions, 0 deletions
diff --git a/modules.d/95ssh-client/module-setup.sh b/modules.d/95ssh-client/module-setup.sh
new file mode 100755
index 0000000..75fc94f
--- /dev/null
+++ b/modules.d/95ssh-client/module-setup.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+
+# fixme: assume user is root
+
+# called by dracut
+check() {
+    [[ $mount_needs ]] && return 1
+
+    # If our prerequisites are not met, fail.
+    require_binaries ssh scp || return 1
+
+    if [[ $sshkey ]]; then
+        [[ ! -f $dracutsysrootdir$sshkey ]] && {
+            derror "ssh key: $sshkey is not found!"
+            return 1
+        }
+    fi
+
+    return 255
+}
+
+# called by dracut
+depends() {
+    # We depend on network modules being loaded
+    echo network
+}
+
+inst_sshenv() {
+    if [[ -d $dracutsysrootdir/root/.ssh ]]; then
+        inst_dir /root/.ssh
+        chmod 700 "${initdir}"/root/.ssh
+    fi
+
+    # Copy over ssh key and knowhosts if needed
+    [[ $sshkey ]] && {
+        inst_simple "$sshkey"
+        [[ -f $dracutsysrootdir/root/.ssh/known_hosts ]] && inst_simple /root/.ssh/known_hosts
+        [[ -f $dracutsysrootdir/etc/ssh/ssh_known_hosts ]] && inst_simple /etc/ssh/ssh_known_hosts
+    }
+
+    # Copy over root and system-wide ssh configs.
+    [[ -f $dracutsysrootdir/root/.ssh/config ]] && inst_simple /root/.ssh/config
+    if [[ -f $dracutsysrootdir/etc/ssh/ssh_config ]]; then
+        inst_simple /etc/ssh/ssh_config
+        sed -i -e 's/\(^[[:space:]]*\)ProxyCommand/\1# ProxyCommand/' "${initdir}"/etc/ssh/ssh_config
+        while read -r key val || [ -n "$key" ]; do
+            if [[ $key == "GlobalKnownHostsFile" ]]; then
+                inst_simple "$val"
+            # Copy customized UserKnowHostsFile
+            elif [[ $key == "UserKnownHostsFile" ]]; then
+                # Make sure that ~/foo will be copied as /root/foo in kdump's initramfs
+                # shellcheck disable=SC2088
+                if str_starts "$val" "~/"; then
+                    val="/root/${val#"~/"}"
+                fi
+                inst_simple "$val"
+            fi
+        done < "$dracutsysrootdir"/etc/ssh/ssh_config
+    fi
+
+    return 0
+}
+
+# called by dracut
+install() {
+    local _nsslibs
+
+    inst_multiple ssh scp
+    inst_sshenv
+
+    _nsslibs=$(
+        cat "$dracutsysrootdir"/{,usr/}etc/nsswitch.conf 2> /dev/null \
+            | sed -e 's/#.*//; s/^[^:]*://; s/\[[^]]*\]//' \
+            | tr -s '[:space:]' '\n' | sort -u | tr -s '[:space:]' '|'
+    )
+    _nsslibs=${_nsslibs#|}
+    _nsslibs=${_nsslibs%|}
+
+    inst_libdir_file -n "$_nsslibs" 'libnss_*.so*'
+}