[PATCH RFC 2/6] qemu-xen-trad: sasl: define SASL auth API

[Simon Waterman <watermansrdev@gmail.com>]

Add the SASL auth API to hook into vnc.c.  Taken from upstream
with minor changes to remove ACL support, which isn't in
qemu-xen-traditional yet.

Signed-off-by: Simon Waterman <watermansrdev@gmail.com>
---
 vnc-auth-sasl.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 vnc-auth-sasl.h

diff --git a/vnc-auth-sasl.h b/vnc-auth-sasl.h
new file mode 100644
index 0000000..42a049f
--- /dev/null
+++ b/vnc-auth-sasl.h
@@ -0,0 +1,67 @@
+/*
+ * QEMU VNC display driver: SASL auth protocol
+ *
+ * Copyright (C) 2009 Red Hat, Inc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#ifndef __QEMU_VNC_AUTH_SASL_H__
+#define __QEMU_VNC_AUTH_SASL_H__
+
+
+#include <sasl/sasl.h>
+
+typedef struct VncStateSASL VncStateSASL;
+
+struct VncStateSASL {
+    sasl_conn_t *conn;
+    /* If we want to negotiate an SSF layer with client */
+    bool wantSSF;
+    /* If we are now running the SSF layer */
+    bool runSSF;
+    /*
+     * If this is non-zero, then wait for that many bytes
+     * to be written plain, before switching to SSF encoding
+     * This allows the VNC auth result to finish being
+     * written in plain.
+     */
+    unsigned int waitWriteSSF;
+
+    /*
+     * Buffering encoded data to allow more clear data
+     * to be stuffed onto the output buffer
+     */
+    const uint8_t *encoded;
+    unsigned int encodedLength;
+    unsigned int encodedOffset;
+    char *username;
+    char *mechlist;
+};
+
+void vnc_sasl_client_cleanup(VncState *vs);
+
+long vnc_client_read_sasl(VncState *vs);
+long vnc_client_write_sasl(VncState *vs);
+
+void start_auth_sasl(VncState *vs);
+
+#endif /* __QEMU_VNC_AUTH_SASL_H__ */
+
-- 
2.7.4


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