From 005f638494e5e5c07b0252538d4566d373962f4e Mon Sep 17 00:00:00 2001
From: Bart De Schuymer <bdschuym@pandora.be>
Date: Wed, 28 Sep 2005 19:27:55 +0000
Subject: *** empty log message ***

---
 ebtables-restore.c | 135 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 ebtables-restore.c

(limited to 'ebtables-restore.c')

diff --git a/ebtables-restore.c b/ebtables-restore.c
new file mode 100644
index 0000000..ac85725
--- /dev/null
+++ b/ebtables-restore.c
@@ -0,0 +1,135 @@
+/*
+ * ebtables-restore.c, October 2005
+ *
+ * Author: Bart De Schuymer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include "include/ebtables_u.h"
+
+static struct ebt_u_replace replace[3];
+void ebt_early_init_once();
+
+#define OPT_KERNELDATA  0x800 /* Also defined in ebtables.c */
+
+static void copy_table_names()
+{
+	strcpy(replace[0].name, "filter");
+	strcpy(replace[1].name, "nat");
+	strcpy(replace[2].name, "broute");
+}
+
+int main(int argc_, char *argv_[])
+{
+	char *argv[EBTD_ARGC_MAX], cmdline[EBTD_CMDLINE_MAXLN];
+	int i, offset, quotemode = 0, argc, table_nr = -1, line = 0, whitespace;
+	char ebtables_str[] = "ebtables";
+
+	ebt_silent = 0;
+	copy_table_names();
+	ebt_early_init_once();
+	argv[0] = ebtables_str;
+
+	while (fgets(cmdline, EBTD_CMDLINE_MAXLN, stdin)) {
+		line++;
+		if (*cmdline == '#' || *cmdline == '\n')
+			continue;
+		*strchr(cmdline, '\n') = '\0';
+		if (*cmdline == '*') {
+			if (table_nr != -1) {
+				ebt_deliver_table(&replace[table_nr]);
+				ebt_deliver_counters(&replace[table_nr]);
+			}
+			for (i = 0; i < 3; i++)
+				if (!strcmp(replace[i].name, cmdline+1))
+					break;
+			if (i == 3) {
+				fprintf(stderr, "ebtables-restore: line %d: table '%s' was not recognized\n", line, cmdline+1);
+				exit(-1);
+			}
+			table_nr = i;
+			replace[table_nr].command = 11;
+			ebt_get_kernel_table(replace, 1);
+			replace[table_nr].command = 0;
+			replace[table_nr].flags = OPT_KERNELDATA; /* Prevent do_command from initialising replace */
+			continue;
+		} else if (table_nr == -1) {
+			fprintf(stderr, "ebtables-restore: line %d: no table specified\n", line);
+			exit(-1);
+		}
+		if (*cmdline == ':') {
+			int policy;
+			char *ch;
+
+			if (!(ch = strchr(cmdline, ' '))) {
+				fprintf(stderr, "ebtables-restore: line %d: no policy specified\n", line);
+				exit(-1);
+			}
+			*ch = '\0';
+			for (i = 0; i < NUM_STANDARD_TARGETS; i++)
+				if (!strcmp(ch+1, ebt_standard_targets[i])) {
+					policy = -i -1;
+					if (policy == EBT_CONTINUE)
+						i = NUM_STANDARD_TARGETS;
+					break;
+				}
+			if (i == NUM_STANDARD_TARGETS) {
+				fprintf(stderr, "ebtables-restore: line %d: invalid policy specified\n", line);
+				exit(-1);
+			}
+			if (ebt_get_chainnr(&replace[table_nr], cmdline+1) == -1) {
+				ebt_new_chain(&replace[table_nr], cmdline+1, policy);
+			}
+			continue;
+		}
+		argv[1] = cmdline;
+		offset = whitespace = 0;
+		argc = 2;
+		while (cmdline[offset] != '\0') {
+			if (cmdline[offset] == '\"') {
+				whitespace = 0;
+				quotemode ^= 1;
+				if (quotemode)
+					argv[argc++] = &cmdline[offset+1];
+				cmdline[offset] = '\0';
+			} else if (!quotemode && cmdline[offset] == ' ') {
+				whitespace = 1;
+				cmdline[offset] = '\0';
+			} else if (whitespace == 1) {
+				argv[argc++] = &cmdline[offset];
+				whitespace = 0;
+			}
+			offset++;
+		}
+		if (quotemode) {
+			fprintf(stderr, "ebtables-restore: line %d: wrong use of '\"'\n", line);
+			exit(-1);
+		}
+		optind = 0; /* Setting optind = 1 causes serious annoyances */
+		do_command(argc, argv, EXEC_STYLE_DAEMON, &replace[table_nr]);
+		ebt_reinit_extensions();
+	}
+
+	if (table_nr != -1) {
+		ebt_deliver_table(&replace[table_nr]);
+		ebt_deliver_counters(&replace[table_nr]);
+	}
+	return 0;
+}
-- 
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