Add gss support from citi @ umich

[nfs-utils.git] / utils / svcgssd / svcgssd_mech2file.c

diff --git a/utils/svcgssd/svcgssd_mech2file.c b/utils/svcgssd/svcgssd_mech2file.c
new file mode 100644 (file)
index 0000000..f44f7c6
--- /dev/null
+++ b/utils/svcgssd/svcgssd_mech2file.c
@@ -0,0 +1,77 @@
+/*
+  linux_downcall.c
+
+  Copyright (c) 2000 The Regents of the University of Michigan.
+  All rights reserved.
+
+  Copyright (c) 2004 Andy Adamson <andros@UMICH.EDU>.
+  All rights reserved, all wrongs reversed.
+
+  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.
+  3. Neither the name of the University nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED ``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 REGENTS 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.
+
+*/
+
+#include "config.h"
+
+#ifdef HAVE_KRB5
+#include <gssapi/gssapi_generic.h>
+#elif HAVE_HEIMDAL
+#include <gssapi.h>
+#endif
+#include <string.h>
+
+
+#define g_OID_equal(o1,o2) \
+   (((o1)->length == (o2)->length) && \
+    (memcmp((o1)->elements,(o2)->elements,(int) (o1)->length) == 0))
+
+struct mech2file {
+       gss_OID_desc mech;
+       char         filename[8];
+};
+
+struct mech2file m2f[] = {
+       {{9, "\052\206\110\206\367\022\001\002\002"}, "krb5"},
+       {{7, "\053\006\001\005\005\001\003"}, "spkm3"},
+       {{7, "\053\006\001\005\005\001\009"}, "lipkey"},
+       {{0,0},""},
+};
+
+/*
+ * Find the Linux svcgssd downcall file name given the mechanism
+ */
+char *
+mech2file(gss_OID mech)
+{
+       struct mech2file *m2fp = m2f;
+
+       while(m2fp->mech.length != 0) {
+               if (g_OID_equal(mech,&m2fp->mech))
+                       return(m2fp->filename);
+               m2fp++;
+       }
+       return NULL;
+}