[src/trunk]: src/lib/npf/ext_normalize forgot to add the c file

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/effb53f52cd1
branches:  trunk
changeset: 785366:effb53f52cd1
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Mar 10 21:49:26 2013 +0000

description:
forgot to add the c file

diffstat:

 lib/npf/ext_normalize/npfext_normalize.c |  100 +++++++++++++++++++++++++++++++
 1 files changed, 100 insertions(+), 0 deletions(-)

diffs (104 lines):

diff -r f5c267147d21 -r effb53f52cd1 lib/npf/ext_normalize/npfext_normalize.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/npf/ext_normalize/npfext_normalize.c  Sun Mar 10 21:49:26 2013 +0000
@@ -0,0 +1,100 @@
+/*     $NetBSD: npfext_normalize.c,v 1.1 2013/03/10 21:49:26 christos Exp $    */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
+__RCSID("$NetBSD: npfext_normalize.c,v 1.1 2013/03/10 21:49:26 christos Exp $");
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <npf.h>
+
+int            npfext_normalize_init(void);
+nl_ext_t *     npfext_normalize_construct(const char *);
+int            npfext_normalize_param(nl_ext_t *, const char *, const char *);
+
+int
+npfext_normalize_init(void)
+{
+       /* Nothing to initialize. */
+       return 0;
+}
+
+nl_ext_t *
+npfext_normalize_construct(const char *name)
+{
+       assert(strcmp(name, "normalize") == 0);
+       return npf_ext_construct(name);
+}
+
+int
+npfext_normalize_param(nl_ext_t *ext, const char *param, const char *val)
+{
+       enum ptype {
+               PARAM_BOOL,
+               PARAM_U32
+       };
+       static const struct param {
+               const char *    name;
+               enum ptype      type;
+               bool            reqval;
+       } params[] = {
+               { "random-id",  PARAM_BOOL,     false   },
+               { "no-df",      PARAM_BOOL,     false   },
+               { "min-ttl",    PARAM_U32,      true    },
+               { "max-mss",    PARAM_U32,      true    },
+       };
+
+       for (unsigned i = 0; i < __arraycount(params); i++) {
+               const char *name = params[i].name;
+
+               if (strcmp(name, param) != 0) {
+                       continue;
+               }
+               if (val == NULL && params[i].reqval) {
+                       return EINVAL;
+               }
+
+               switch (params[i].type) {
+               case PARAM_BOOL:
+                       npf_ext_param_bool(ext, name, true);
+                       break;
+               case PARAM_U32:
+                       npf_ext_param_u32(ext, name, atol(val));
+                       break;
+               default:
+                       assert(false);
+               }
+               return 0;
+       }
+
+       /* Invalid parameter, if not found. */
+       return EINVAL;
+}