--- /dev/null
+/* #ident "@(#)gss_init_sec_context.c 1.20 95/08/07 SMI" */
+
+/*
+ * Copyright 1996 by Sun Microsystems, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appears in all copies and
+ * that both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of Sun Microsystems not be used
+ * in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. Sun Microsystems makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * glue routine for gss_init_sec_context
+ */
+
+#include "mglueP.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+
+#define g_OID_equal(o1,o2) \
+ (((o1)->length == (o2)->length) && \
+ (memcmp((o1)->elements,(o2)->elements,(int) (o1)->length) == 0))
+
+OM_uint32 KRB5_CALLCONV
+gss_init_sec_context (minor_status,
+ claimant_cred_handle,
+ context_handle,
+ target_name,
+ req_mech_type,
+ req_flags,
+ time_req,
+ input_chan_bindings,
+ input_token,
+ actual_mech_type,
+ output_token,
+ ret_flags,
+ time_rec)
+
+OM_uint32 * minor_status;
+gss_cred_id_t claimant_cred_handle;
+gss_ctx_id_t * context_handle;
+gss_name_t target_name;
+gss_OID req_mech_type;
+OM_uint32 req_flags;
+OM_uint32 time_req;
+gss_channel_bindings_t input_chan_bindings;
+gss_buffer_t input_token;
+gss_OID * actual_mech_type;
+gss_buffer_t output_token;
+OM_uint32 * ret_flags;
+OM_uint32 * time_rec;
+
+{
+ OM_uint32 status, temp_status, temp_minor_status;
+ gss_union_name_t union_name;
+ gss_union_cred_t union_cred;
+ gss_name_t internal_name;
+ gss_union_ctx_id_t union_ctx_id;
+ gss_OID mech_type = (gss_OID) req_mech_type;
+ gss_mechanism mech;
+ gss_cred_id_t input_cred_handle;
+
+ gss_initialize();
+
+ if (context_handle == NULL)
+ return GSS_S_NO_CONTEXT;
+
+ union_name = (gss_union_name_t) target_name;
+
+ /*
+ * If mech_type is NULL, and the target_name is
+ * mechanism-specific, then set it to the mech_type of
+ * target_name.
+ */
+ if ((mech_type == GSS_C_NULL_OID) && union_name->mech_type)
+ mech_type = union_name->mech_type;
+
+ /*
+ * obtain the gss mechanism information for the requested
+ * mechanism. If mech_type is NULL, set it to the resultant
+ * mechanism
+ */
+ mech = __gss_get_mechanism (mech_type);
+ if (mech == NULL)
+ return (GSS_S_BAD_MECH);
+
+ if (mech_type == GSS_C_NULL_OID)
+ mech_type = &mech->mech_type;
+
+ /*
+ * If target_name is mechanism_specific, then it must match the
+ * mech_type that we're about to use. Otherwise, do an import on
+ * the external_name form of the target name.
+ */
+ if (union_name->mech_type) {
+ if (!g_OID_equal(union_name->mech_type, mech_type))
+ return (GSS_S_BAD_MECH);
+ internal_name = union_name->mech_name;
+ } else {
+ if ((temp_status = __gss_import_internal_name(minor_status, mech_type,
+ union_name,
+ &internal_name)))
+ return (GSS_S_BAD_NAME);
+ }
+
+ /*
+ * if context_handle is GSS_C_NO_CONTEXT, allocate a union context
+ * descriptor to hold the mech type information as well as the
+ * underlying mechanism context handle. Otherwise, cast the
+ * value of *context_handle to the union context variable.
+ */
+
+ if(*context_handle == GSS_C_NO_CONTEXT) {
+ union_ctx_id = (gss_union_ctx_id_t)
+ malloc(sizeof(gss_union_ctx_id_desc));
+
+ union_ctx_id->mech_type = (gss_OID)
+ malloc(sizeof(gss_OID_desc));
+
+ /* copy in the mech type information */
+
+ union_ctx_id->mech_type->elements = (void *)
+ malloc(mech_type->length);
+
+ union_ctx_id->mech_type->length = mech_type->length;
+ memcpy(union_ctx_id->mech_type->elements, mech_type->elements,
+ mech_type->length);
+
+ /* copy the supplied context handle */
+
+ union_ctx_id->internal_ctx_id = *context_handle;
+ } else
+ union_ctx_id = *context_handle;
+
+ /*
+ * get the appropriate cred handle from the union cred struct.
+ * defaults to GSS_C_NO_CREDENTIAL if there is no cred, which will
+ * use the default credential.
+ */
+ union_cred = (gss_union_cred_t) claimant_cred_handle;
+ input_cred_handle = __gss_get_mechanism_cred(union_cred, mech_type);
+
+ /*
+ * now call the approprate underlying mechanism routine
+ */
+
+ if (mech->gss_init_sec_context) {
+ status = mech->gss_init_sec_context(
+#ifdef USE_MECH_CONTEXT
+ mech->context,
+#endif
+ minor_status,
+ input_cred_handle,
+ &union_ctx_id->internal_ctx_id,
+ internal_name,
+ mech_type,
+ req_flags,
+ time_req,
+ input_chan_bindings,
+ input_token,
+ actual_mech_type,
+ output_token,
+ ret_flags,
+ time_rec);
+
+ if (*context_handle == GSS_C_NO_CONTEXT)
+ *context_handle = (gss_ctx_id_t) union_ctx_id;
+
+ } else
+ status = GSS_S_BAD_BINDINGS;
+
+ if (!union_name->mech_type) {
+ (void) __gss_release_internal_name(&temp_minor_status,
+ mech_type, &internal_name);
+ }
+
+ return(status);
+}
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