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authorDoug Rabson <dfr@FreeBSD.org>2005-12-29 14:40:22 +0000
committerDoug Rabson <dfr@FreeBSD.org>2005-12-29 14:40:22 +0000
commitc0b9f4fe659b6839541970eb5675e57f4d814969 (patch)
treef226da354a25653f837708c3ecef3468ea981824 /lib/libgssapi/gss_import_sec_context.c
parent66c6b326543894776c17486b5932438e9dd098c9 (diff)
downloadsrc-c0b9f4fe659b6839541970eb5675e57f4d814969.tar.gz
src-c0b9f4fe659b6839541970eb5675e57f4d814969.zip
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)
Notes
Notes: svn path=/head/; revision=153838
Diffstat (limited to 'lib/libgssapi/gss_import_sec_context.c')
-rw-r--r--lib/libgssapi/gss_import_sec_context.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/libgssapi/gss_import_sec_context.c b/lib/libgssapi/gss_import_sec_context.c
new file mode 100644
index 000000000000..ce3ddd10c3f3
--- /dev/null
+++ b/lib/libgssapi/gss_import_sec_context.c
@@ -0,0 +1,86 @@
+/*-
+ * 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_import_sec_context(OM_uint32 *minor_status,
+ const gss_buffer_t interprocess_token,
+ gss_ctx_id_t *context_handle)
+{
+ OM_uint32 major_status;
+ struct _gss_mech_switch *m;
+ struct _gss_context *ctx;
+ gss_OID_desc mech_oid;
+ gss_buffer_desc buf;
+ unsigned char *p;
+ size_t len;
+
+ *minor_status = 0;
+ *context_handle = 0;
+
+ /*
+ * We added an oid to the front of the token in
+ * gss_export_sec_context.
+ */
+ p = interprocess_token->value;
+ len = interprocess_token->length;
+ if (len < 2)
+ return (GSS_S_DEFECTIVE_TOKEN);
+ mech_oid.length = (p[0] << 8) | p[1];
+ if (len < mech_oid.length + 2)
+ return (GSS_S_DEFECTIVE_TOKEN);
+ mech_oid.elements = p + 2;
+ buf.length = len - 2 - mech_oid.length;
+ buf.value = p + 2 + mech_oid.length;
+
+ m = _gss_find_mech_switch(&mech_oid);
+ if (!m)
+ return (GSS_S_DEFECTIVE_TOKEN);
+
+ ctx = malloc(sizeof(struct _gss_context));
+ if (!ctx) {
+ *minor_status = ENOMEM;
+ return (GSS_S_FAILURE);
+ }
+ ctx->gc_mech = m;
+ major_status = m->gm_import_sec_context(minor_status,
+ &buf, &ctx->gc_ctx);
+ if (major_status != GSS_S_COMPLETE) {
+ free(ctx);
+ } else {
+ *context_handle = (gss_ctx_id_t) ctx;
+ }
+
+ return (major_status);
+}