From a760147457f890f28bea7d1d894111d3b0db0369 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Tue, 25 Mar 2008 12:20:55 +0000
Subject: [PATCH] first implementation of kcm-move-cache

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@22777 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 kcm/protocol.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++-
 lib/krb5/kcm.c | 28 +++++++++++++++--
 lib/krb5/kcm.h |  1 +
 3 files changed, 108 insertions(+), 4 deletions(-)

diff --git a/kcm/protocol.c b/kcm/protocol.c
index e35ea6ebe..0b7181192 100644
--- a/kcm/protocol.c
+++ b/kcm/protocol.c
@@ -950,6 +950,86 @@ kcm_op_get_ticket(krb5_context context,
     return ret;
 }
 
+/*
+ * Request:
+ *	OldNameZ
+ *	NewNameZ
+ *
+ * Repsonse:
+ *
+ */
+static krb5_error_code
+kcm_op_move_cache(krb5_context context,
+		  kcm_client *client,
+		  kcm_operation opcode,
+		  krb5_storage *request,
+		  krb5_storage *response)
+{
+    krb5_error_code ret;
+    kcm_ccache oldid, newid;
+    char *oldname, *newname;
+
+    ret = krb5_ret_stringz(request, &oldname);
+    if (ret)
+	return ret;
+
+    KCM_LOG_REQUEST_NAME(context, client, opcode, oldname);
+
+    ret = krb5_ret_stringz(request, &newname);
+    if (ret) {
+	free(oldname);
+	return ret;
+    }
+
+    ret = kcm_ccache_resolve_client(context, client, opcode, oldname, &oldid);
+    if (ret) {
+	free(oldname);
+	free(newname);
+	return ret;
+    }
+ 
+    ret = kcm_ccache_resolve_client(context, client, opcode, newname, &newid);
+    free(newname);
+    if (ret) {
+	free(oldname);
+	kcm_release_ccache(context, &oldid);
+	return ret;
+    }
+
+    HEIMDAL_MUTEX_lock(&oldid->mutex);
+    HEIMDAL_MUTEX_lock(&newid->mutex);
+
+    /* move content */
+    {
+	kcm_ccache_data tmp;
+
+#define MOVE(n,o,f) { tmp.f = n->f ; n->f = o->f; o->f = tmp.f; }
+
+	MOVE(newid, oldid, flags);
+	MOVE(newid, oldid, client);
+	MOVE(newid, oldid, server);
+	MOVE(newid, oldid, creds);
+	MOVE(newid, oldid, tkt_life);
+	MOVE(newid, oldid, renew_life);
+	MOVE(newid, oldid, key);
+	MOVE(newid, oldid, key);
+#undef MOVE
+    }
+
+    HEIMDAL_MUTEX_unlock(&oldid->mutex);
+    HEIMDAL_MUTEX_unlock(&newid->mutex);
+
+    kcm_release_ccache(context, &oldid);
+    kcm_release_ccache(context, &newid);
+
+    ret = kcm_ccache_destroy_client(context, client, oldname);
+
+    free(oldname);
+
+    return ret;
+}
+
+
 static struct kcm_op kcm_ops[] = {
     { "NOOP", 			kcm_op_noop },
     { "GET_NAME",		kcm_op_get_name },
@@ -968,7 +1048,8 @@ static struct kcm_op kcm_ops[] = {
     { "CHOWN",			kcm_op_chown },
     { "CHMOD",			kcm_op_chmod },
     { "GET_INITIAL_TICKET",	kcm_op_get_initial_ticket },
-    { "GET_TICKET",		kcm_op_get_ticket }
+    { "GET_TICKET",		kcm_op_get_ticket },
+    { "MOVE_CACHE",		kcm_op_move_cache }
 };
 
 
diff --git a/lib/krb5/kcm.c b/lib/krb5/kcm.c
index e19dda896..3b6daba6a 100644
--- a/lib/krb5/kcm.c
+++ b/lib/krb5/kcm.c
@@ -832,8 +832,31 @@ kcm_get_version(krb5_context context,
 static krb5_error_code
 kcm_move(krb5_context context, krb5_ccache from, krb5_ccache to)
 {
-    krb5_set_error_string(context, "kcm_move not implemented");
-    return EINVAL;
+    krb5_error_code ret;
+    krb5_kcmcache *oldk = KCMCACHE(from);
+    krb5_kcmcache *newk = KCMCACHE(to);
+    krb5_storage *request;
+
+    ret = kcm_storage_request(context, KCM_OP_MOVE_CACHE, &request);
+    if (ret)
+	return ret;
+
+    ret = krb5_store_stringz(request, oldk->name);
+    if (ret) {
+	krb5_storage_free(request);
+	return ret;
+    }
+
+    ret = krb5_store_stringz(request, newk->name);
+    if (ret) {
+	krb5_storage_free(request);
+	return ret;
+    }
+
+    ret = kcm_call(context, k, request, NULL, NULL);
+
+    krb5_storage_free(request);
+    return ret;
 }
 
 static krb5_error_code
@@ -1118,5 +1141,4 @@ _krb5_kcm_get_ticket(krb5_context context,
     return ret;
 }
 
-
 #endif /* HAVE_KCM */
diff --git a/lib/krb5/kcm.h b/lib/krb5/kcm.h
index 10dfa440f..3588d8312 100644
--- a/lib/krb5/kcm.h
+++ b/lib/krb5/kcm.h
@@ -59,6 +59,7 @@ typedef enum kcm_operation {
     KCM_OP_CHMOD,
     KCM_OP_GET_INITIAL_TICKET,
     KCM_OP_GET_TICKET,
+    KCM_OP_MOVE_CACHE,
     KCM_OP_MAX
 } kcm_operation;