Implement draft-josefsson-gss-capsulate-01

git-svn-id: svn://anonsvn.mit.edu/krb5/users/lhoward/moonshot-mechglue-fixes@24737 dc483132-0cff-0310-8789-dd5450dbe970

6 files changed, 165 insertions, 0 deletions

diff --git a/src/lib/gssapi/generic/gssapi_ext.h b/src/lib/gssapi/generic/gssapi_ext.h
index 68a89be..1ba23a3 100644
--- a/src/lib/gssapi/generic/gssapi_ext.h
+++ b/src/lib/gssapi/generic/gssapi_ext.h
@@ -384,6 +384,27 @@ OM_uint32 KRB5_CALLCONV gss_release_any_name_mapping
     gss_any_t *		/* input */
 );
 
+/* draft-josefsson-gss-capsulate */
+OM_uint32 KRB5_CALLCONV gss_encapsulate_token
+(
+    const gss_buffer_t, /* input_token */
+    const gss_OID,      /* token_oid */
+    const gss_buffer_t  /* output_token */
+);
+
+OM_uint32 KRB5_CALLCONV gss_decapsulate_token
+(
+    const gss_buffer_t, /* input_token */
+    const gss_OID,      /* token_oid */
+    gss_buffer_t        /* output_token */
+);
+
+OM_uint32 KRB5_CALLCONV gss_oid_equal
+(
+    const gss_OID,      /* first_oid */
+    const gss_OID       /* second_oid */
+);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/lib/gssapi/libgssapi_krb5.exports b/src/lib/gssapi/libgssapi_krb5.exports
index dc75cf7..7878293 100644
--- a/src/lib/gssapi/libgssapi_krb5.exports
+++ b/src/lib/gssapi/libgssapi_krb5.exports
@@ -48,6 +48,7 @@ gss_complete_auth_token
 gss_context_time
 gss_create_empty_buffer_set
 gss_create_empty_oid_set
+gss_decapsulate_token
 gss_delete_name_attribute
 gss_delete_sec_context
 gss_display_mech_attr
@@ -55,6 +56,7 @@ gss_display_name
 gss_display_name_ext
 gss_display_status
 gss_duplicate_name
+gss_encapsulate_token
 gss_export_name
 gss_export_name_composite
 gss_export_sec_context
@@ -102,6 +104,7 @@ gss_nt_service_name
 gss_nt_service_name_v2
 gss_nt_string_uid_name
 gss_nt_user_name
+gss_oid_equal
 gss_oid_to_str
 gss_pname_to_uid
 gss_pseudo_random
diff --git a/src/lib/gssapi/mechglue/Makefile.in b/src/lib/gssapi/mechglue/Makefile.in
index 2d90138..213df60 100644
--- a/src/lib/gssapi/mechglue/Makefile.in
+++ b/src/lib/gssapi/mechglue/Makefile.in
@@ -19,12 +19,14 @@ SRCS = \
 	$(srcdir)/g_compare_name.c \
 	$(srcdir)/g_complete_auth_token.c \
 	$(srcdir)/g_context_time.c \
+	$(srcdir)/g_decapsulate_token.c \
 	$(srcdir)/g_delete_sec_context.c \
 	$(srcdir)/g_del_name_attr.c \
 	$(srcdir)/g_dsp_name.c \
 	$(srcdir)/g_dsp_name_ext.c \
 	$(srcdir)/g_dsp_status.c \
 	$(srcdir)/g_dup_name.c \
+	$(srcdir)/g_encapsulate_token.c \
 	$(srcdir)/g_exp_sec_context.c \
 	$(srcdir)/g_export_name.c \
 	$(srcdir)/g_export_name_comp.c \
@@ -79,12 +81,14 @@ OBJS = \
 	$(OUTPRE)g_compare_name.$(OBJEXT) \
 	$(OUTPRE)g_complete_auth_token.$(OBJEXT) \
 	$(OUTPRE)g_context_time.$(OBJEXT) \
+	$(OUTPRE)g_decapsulate_token.$(OBJEXT) \
 	$(OUTPRE)g_delete_sec_context.$(OBJEXT) \
 	$(OUTPRE)g_del_name_attr.$(OBJEXT) \
 	$(OUTPRE)g_dsp_name.$(OBJEXT) \
 	$(OUTPRE)g_dsp_name_ext.$(OBJEXT) \
 	$(OUTPRE)g_dsp_status.$(OBJEXT) \
 	$(OUTPRE)g_dup_name.$(OBJEXT) \
+	$(OUTPRE)g_encapsulate_token.$(OBJEXT) \
 	$(OUTPRE)g_exp_sec_context.$(OBJEXT) \
 	$(OUTPRE)g_export_name.$(OBJEXT) \
 	$(OUTPRE)g_export_name_comp.$(OBJEXT) \
@@ -139,12 +143,14 @@ STLIBOBJS = \
 	g_compare_name.o \
 	g_complete_auth_token.o \
 	g_context_time.o \
+	g_decapsulate_token.o \
 	g_delete_sec_context.o \
 	g_del_name_attr.o \
 	g_dsp_name.o \
 	g_dsp_name_ext.o \
 	g_dsp_status.o \
 	g_dup_name.o \
+	g_encapsulate_token.o \
 	g_exp_sec_context.o \
 	g_export_name.o \
 	g_export_name_comp.o \
diff --git a/src/lib/gssapi/mechglue/g_decapsulate_token.c b/src/lib/gssapi/mechglue/g_decapsulate_token.c
new file mode 100644
index 0000000..a12d8f7
--- /dev/null
+++ b/src/lib/gssapi/mechglue/g_decapsulate_token.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2011, PADL Software Pty Ltd.
+ * 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.
+ *
+ * 3. Neither the name of PADL Software 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 BY PADL SOFTWARE 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 PADL SOFTWARE 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 "mglueP.h"
+
+OM_uint32
+gss_decapsulate_token(const gss_buffer_t input_token,
+                      const gss_OID token_oid,
+                      gss_buffer_t output_token)
+{
+    OM_uint32 minor;
+    unsigned int body_size = 0;
+    unsigned char *buf_in;
+
+    if (input_token == GSS_C_NO_BUFFER || token_oid == GSS_C_NO_OID)
+        return GSS_S_CALL_INACCESSIBLE_READ;
+
+    if (output_token == GSS_C_NO_BUFFER)
+        return GSS_S_CALL_INACCESSIBLE_WRITE;
+
+    buf_in = input_token->value;
+
+    minor = g_verify_token_header(token_oid, &body_size, &buf_in,
+                                  -1, input_token->length,
+                                  G_VFY_TOKEN_HDR_WRAPPER_REQUIRED);
+    if (minor != 0)
+        return GSS_S_DEFECTIVE_TOKEN;
+
+    output_token->value = malloc(body_size);
+    if (output_token->value == NULL)
+        return GSS_S_FAILURE;
+
+    memcpy(output_token->value, buf_in, body_size);
+    output_token->length = body_size;
+
+    return GSS_S_COMPLETE;
+}
diff --git a/src/lib/gssapi/mechglue/g_encapsulate_token.c b/src/lib/gssapi/mechglue/g_encapsulate_token.c
new file mode 100644
index 0000000..1354fdf
--- /dev/null
+++ b/src/lib/gssapi/mechglue/g_encapsulate_token.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2011, PADL Software Pty Ltd.
+ * 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.
+ *
+ * 3. Neither the name of PADL Software 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 BY PADL SOFTWARE 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 PADL SOFTWARE 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 "mglueP.h"
+
+OM_uint32
+gss_encapsulate_token(const gss_buffer_t input_token,
+                      const gss_OID token_oid,
+                      gss_buffer_t output_token)
+{
+    unsigned int tokenSize;
+    unsigned char *buf;
+
+    if (input_token == GSS_C_NO_BUFFER || token_oid == GSS_C_NO_OID)
+        return GSS_S_CALL_INACCESSIBLE_READ;
+
+    if (output_token == GSS_C_NO_BUFFER)
+        return GSS_S_CALL_INACCESSIBLE_WRITE;
+
+    tokenSize = g_token_size(token_oid, input_token->length);
+
+    output_token->value = malloc(tokenSize);
+    if (output_token->value == NULL)
+        return GSS_S_FAILURE;
+
+    buf = output_token->value;
+
+    g_make_token_header(token_oid, input_token->length, &buf, -1);
+    memcpy(buf, input_token->value, input_token->length);
+
+    return GSS_S_COMPLETE;
+}
diff --git a/src/lib/gssapi/mechglue/g_oid_ops.c b/src/lib/gssapi/mechglue/g_oid_ops.c
index 9521d9a..6239c06 100644
--- a/src/lib/gssapi/mechglue/g_oid_ops.c
+++ b/src/lib/gssapi/mechglue/g_oid_ops.c
@@ -102,3 +102,11 @@ gssint_copy_oid_set(
 {
     return generic_gss_copy_oid_set(minor_status, oidset, new_oidset);
 }
+
+OM_uint32
+gss_oid_equal(
+    const gss_OID first_oid,
+    const gss_OID second_oid)
+{
+    return g_OID_equal(first_oid, second_oid);
+}