Date: Tue May 16 13:23:49 2017 +0200
From: Petr Tesarik <ptesarik@suse.com>
Subject: Add KDUMP_SSH_IDENTITY config option
References: FATE#321583
Git-commit: 3e7e5f020024eed5c6d944e0ff9554772cbdb896
Git-commit: d7e6f45461bf0f899cfedf564d985cf5cd41f331
Git-commit: f0a43757c99635ece304fc9c011c0b82acd86f64
Upstream: v0.8.17

Make the SSH private file configurable.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>

---
 doc/man/kdump.5.txt.in     |   10 ++++++++++
 init/setup-kdump.functions |   39 ++++++++++++++++++++++++++++-----------
 kdumptool/define_opt.h     |    1 +
 3 files changed, 39 insertions(+), 11 deletions(-)

--- a/doc/man/kdump.5.txt.in
+++ b/doc/man/kdump.5.txt.in
@@ -643,7 +643,17 @@ Example (broken into lines for readabili
 
 Default: ""
 
+KDUMP_SSH_IDENTITY
+~~~~~~~~~~~~~~~~~~
 
+List of SSH identity files for public key authentication. If empty, kdump
+will try all standard OpenSSH identities for the 'root' user (rsa, dsa,
+ecdsa, ed25519, in this order). The path to every identity file is relative
+to +~root/.ssh+, or an absolute path can be given.
+
+Example: "/root/.ssh/id_kdump_rsa"
+
+Default: ""
 
 URL FORMAT
 ----------
--- a/init/setup-kdump.functions
+++ b/init/setup-kdump.functions
@@ -935,6 +935,29 @@ function kdump_modify_multipath()
 }									   # }}}
 
 #
+# Copy SSH identity file(s) and update the target config file
+# Parameters:
+#   1) dest: root of the temporary area
+function kdump_copy_ssh_ident()						   # {{{
+{
+    local sshdir="$1/kdump/.ssh"
+    local ssh_conf="$sshdir/config"
+    local f
+
+    shift
+    for f in "$@"; do
+	test "${f:0:1}" = "/" || f=~root/".ssh/$f"
+	test -f "$f" || continue
+
+	cp "$f" "$sshdir/"
+	test -f "${f}.pub" && cp "${f}.pub" "$sshdir/"
+	test -f "${f}-cert.pub" && cp "${f}-cert.pub" "$sshdir/"
+	f=$( basename $f )
+	echo "IdentityFile /kdump/.ssh/${f}" >> "$ssh_conf"
+    done
+}									   # }}}
+
+#
 # Copy SSH keys and create a config file in the target
 # Parameters:
 #   1) dest: root of the temporary area
@@ -952,17 +975,11 @@ function kdump_init_ssh()						   # {{{
     echo "StrictHostKeyChecking yes" >> "$ssh_conf"
     echo "UserKnownHostsFile /kdump/.ssh/known_hosts" >> "$ssh_conf"
 
-    local type
-    for type in rsa dsa ecdsa ed25519
-    do
-	if [ -f /root/.ssh/id_${type} -a -f /root/.ssh/id_${type}.pub ] ; then
-            cp /root/.ssh/id_${type}{,.pub} "${dest}/kdump/.ssh/"
-	    if [ -f /root/.ssh/id_${type}-cert.pub ] ; then
-		cp /root/.ssh/id_${type}-cert.pub "${dest}/kdump/.ssh/"
-	    fi
-	    echo "IdentityFile /kdump/.ssh/id_${type}" >> "$ssh_conf"
-	fi
-    done
+    if [ -n "$KDUMP_SSH_IDENTITY" ] ; then
+	kdump_copy_ssh_ident "$dest" $KDUMP_SSH_IDENTITY
+    else
+	kdump_copy_ssh_ident "$dest" id_{rsa,dsa,ecdsa,ed25519}
+    fi
 }									   # }}}
 
 #
--- a/kdumptool/define_opt.h
+++ b/kdumptool/define_opt.h
@@ -41,3 +41,4 @@ DEFINE_OPT(KDUMP_SMTP_PASSWORD, String,
 DEFINE_OPT(KDUMP_NOTIFICATION_TO, String, "", DUMP)
 DEFINE_OPT(KDUMP_NOTIFICATION_CC, String, "", DUMP)
 DEFINE_OPT(KDUMP_HOST_KEY, String, "", DUMP)
+DEFINE_OPT(KDUMP_SSH_IDENTITY, String, "", MKINITRD)