1 files changed, 251 insertions, 0 deletions
diff --git a/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c b/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c
new file mode 100644
index 0000000000..f28d2397be
--- /dev/null
+++ b/source4/heimdal/lib/gssapi/krb5/set_sec_context_option.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (c) 2004, 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.
+ */
+
+/*
+ *  glue routine for _gsskrb5_inquire_sec_context_by_oid
+ */
+
+#include "krb5/gsskrb5_locl.h"
+
+RCSID("$Id$");
+
+static OM_uint32
+get_bool(OM_uint32 *minor_status,
+	 const gss_buffer_t value,
+	 int *flag)
+{
+    if (value->value == NULL || value->length != 1) {
+	*minor_status = EINVAL;
+	return GSS_S_FAILURE;
+    }
+    *flag = *((const char *)value->value) != 0;
+    return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+get_string(OM_uint32 *minor_status,
+	   const gss_buffer_t value,
+	   char **str)
+{
+    if (value == NULL || value->length == 0) {
+	*str = NULL;
+    } else {
+	*str = malloc(value->length + 1);
+	if (*str == NULL) {
+	    *minor_status = 0;
+	    return GSS_S_UNAVAILABLE;
+	}
+	memcpy(*str, value->value, value->length);
+	(*str)[value->length] = '\0';
+    }
+    return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+get_int32(OM_uint32 *minor_status,
+	  const gss_buffer_t value,
+	  OM_uint32 *ret)
+{
+    *minor_status = 0;
+    if (value == NULL || value->length == 0)
+	*ret = 0;
+    else if (value->length == sizeof(*ret))
+	memcpy(ret, value->value, sizeof(*ret));
+    else
+	return GSS_S_UNAVAILABLE;
+
+    return GSS_S_COMPLETE;
+}
+
+static OM_uint32
+set_int32(OM_uint32 *minor_status,
+	  const gss_buffer_t value,
+	  OM_uint32 set)
+{
+    *minor_status = 0;
+    if (value->length == sizeof(set))
+	memcpy(value->value, &set, sizeof(set));
+    else
+	return GSS_S_UNAVAILABLE;
+
+    return GSS_S_COMPLETE;
+}
+
+OM_uint32
+_gsskrb5_set_sec_context_option
+           (OM_uint32 *minor_status,
+            gss_ctx_id_t *context_handle,
+            const gss_OID desired_object,
+            const gss_buffer_t value)
+{
+    krb5_context context;
+    OM_uint32 maj_stat;
+
+    GSSAPI_KRB5_INIT (&context);
+
+    if (value == GSS_C_NO_BUFFER) {
+	*minor_status = EINVAL;
+	return GSS_S_FAILURE;
+    }
+
+    if (gss_oid_equal(desired_object, GSS_KRB5_COMPAT_DES3_MIC_X)) {
+	gsskrb5_ctx ctx;
+	int flag;
+
+	if (*context_handle == GSS_C_NO_CONTEXT) {
+	    *minor_status = EINVAL;
+	    return GSS_S_NO_CONTEXT;
+	}
+
+	maj_stat = get_bool(minor_status, value, &flag);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+
+	ctx = (gsskrb5_ctx)*context_handle;
+	HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
+	if (flag)
+	    ctx->more_flags |= COMPAT_OLD_DES3;
+	else
+	    ctx->more_flags &= ~COMPAT_OLD_DES3;
+	ctx->more_flags |= COMPAT_OLD_DES3_SELECTED;
+	HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
+	return GSS_S_COMPLETE;
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DNS_CANONICALIZE_X)) {
+	int flag;
+
+	maj_stat = get_bool(minor_status, value, &flag);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+
+	krb5_set_dns_canonicalize_hostname(context, flag);
+	return GSS_S_COMPLETE;
+
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_REGISTER_ACCEPTOR_IDENTITY_X)) {
+	char *str;
+
+	maj_stat = get_string(minor_status, value, &str);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+
+	_gsskrb5_register_acceptor_identity(str);
+	free(str);
+
+	*minor_status = 0;
+	return GSS_S_COMPLETE;
+
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_DEFAULT_REALM_X)) {
+	char *str;
+
+	maj_stat = get_string(minor_status, value, &str);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+	if (str == NULL) {
+	    *minor_status = 0;
+	    return GSS_S_CALL_INACCESSIBLE_READ;
+	}
+
+	krb5_set_default_realm(context, str);
+	free(str);
+
+	*minor_status = 0;
+	return GSS_S_COMPLETE;
+
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_SEND_TO_KDC_X)) {
+
+	if (value == NULL || value->length == 0) {
+	    krb5_set_send_to_kdc_func(context, NULL, NULL);
+	} else {
+	    struct gsskrb5_send_to_kdc c;
+
+	    if (value->length != sizeof(c)) {
+		*minor_status = EINVAL;
+		return GSS_S_FAILURE;
+	    }
+	    memcpy(&c, value->value, sizeof(c));
+	    krb5_set_send_to_kdc_func(context,
+				      (krb5_send_to_kdc_func)c.func, 
+				      c.ptr);
+	}
+
+	*minor_status = 0;
+	return GSS_S_COMPLETE;
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_CCACHE_NAME_X)) {
+	char *str;
+
+	maj_stat = get_string(minor_status, value, &str);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+	if (str == NULL) {
+	    *minor_status = 0;
+	    return GSS_S_CALL_INACCESSIBLE_READ;
+	}
+
+	*minor_status = krb5_cc_set_default_name(context, str);
+	free(str);
+	if (*minor_status)
+	    return GSS_S_FAILURE;
+
+	return GSS_S_COMPLETE;
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_SET_TIME_OFFSET_X)) {
+	OM_uint32 offset;
+	time_t t;
+
+	maj_stat = get_int32(minor_status, value, &offset);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+
+	t = time(NULL) + offset;
+	
+	krb5_set_real_time(context, t, 0);
+
+	*minor_status = 0;
+	return GSS_S_COMPLETE;
+    } else if (gss_oid_equal(desired_object, GSS_KRB5_GET_TIME_OFFSET_X)) {
+	krb5_timestamp sec;
+	int32_t usec;
+	time_t t;
+
+	t = time(NULL);
+
+	krb5_us_timeofday (context, &sec, &usec);
+
+	maj_stat = set_int32(minor_status, value, sec - t);
+	if (maj_stat != GSS_S_COMPLETE)
+	    return maj_stat;
+
+	*minor_status = 0;
+	return GSS_S_COMPLETE;
+    }
+
+    *minor_status = EINVAL;
+    return GSS_S_FAILURE;
+}