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diff --git a/ebtables-restore.c b/ebtables-restore.c
new file mode 100644 (file)
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;
+}