Add a new extensible GSS-API layer which can support GSS-API plugins,

similar the the Solaris implementation. Repackage the krb5 GSS mechanism
as a plugin library for the new implementation. This also includes a
comprehensive set of manpages for the GSS-API functions with text mostly
taken from the RFC.

Reviewed by: Love Hörnquist Åstrand <lha@it.su.se>, ru (build system), des (openssh parts)

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/libgssapi/gss_delete_sec_context.c b/lib/libgssapi/gss_delete_sec_context.c
new file mode 100644
index 000000000000..b1f39c24c0fd
--- /dev/null
+++ b/lib/libgssapi/gss_delete_sec_context.c
@@ -0,0 +1,62 @@
+/*-
+ * Copyright (c) 2005 Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$FreeBSD$
+ */
+
+#include <gssapi/gssapi.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "mech_switch.h"
+#include "context.h"
+
+OM_uint32
+gss_delete_sec_context(OM_uint32 *minor_status,
+    gss_ctx_id_t *context_handle,
+    gss_buffer_t output_token)
+{
+	OM_uint32 major_status;
+	struct _gss_context *ctx = (struct _gss_context *) *context_handle;
+
+	*minor_status = 0;
+	if (ctx) {
+		/*
+		 * If we have an implementation ctx, delete it,
+		 * otherwise fake an empty token.
+		 */
+		if (ctx->gc_ctx) {
+			major_status = ctx->gc_mech->gm_delete_sec_context(
+				minor_status, &ctx->gc_ctx, output_token);
+		} else if (output_token != GSS_C_NO_BUFFER) {
+			output_token->length = 0;
+			output_token->value = 0;
+		}
+		free(ctx);
+		*context_handle = 0;
+	}
+
+	return (GSS_S_COMPLETE);
+}