[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/iptables/extensions/libipt_ULOG.c b/ap/app/iptables/extensions/libipt_ULOG.c
new file mode 100755
index 0000000..3fa91f2
--- /dev/null
+++ b/ap/app/iptables/extensions/libipt_ULOG.c
@@ -0,0 +1,198 @@
+/* Shared library add-on to iptables to add ULOG support.
+ * 
+ * (C) 2000 by Harald Welte <laforge@gnumonks.org>
+ *
+ * multipart netlink support based on ideas by Sebastian Zander 
+ * 						<zander@fokus.gmd.de>
+ *
+ * This software is released under the terms of GNU GPL
+ * 
+ * libipt_ULOG.c,v 1.7 2001/01/30 11:55:02 laforge Exp
+ */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <getopt.h>
+#include <xtables.h>
+/* For 64bit kernel / 32bit userspace */
+#include <linux/netfilter_ipv4/ipt_ULOG.h>
+
+
+static void print_groups(unsigned int gmask)
+{
+	int b;
+	unsigned int test;
+
+	for (b = 31; b >= 0; b--) {
+		test = (1 << b);
+		if (gmask & test)
+			printf("%d ", b + 1);
+	}
+}
+
+static void ULOG_help(void)
+{
+	printf("ULOG target options:\n"
+	       " --ulog-nlgroup nlgroup		NETLINK group used for logging\n"
+	       " --ulog-cprange size		Bytes of each packet to be passed\n"
+	       " --ulog-qthreshold		Threshold of in-kernel queue\n"
+	       " --ulog-prefix prefix		Prefix log messages with this prefix.\n");
+}
+
+static const struct option ULOG_opts[] = {
+	{"ulog-nlgroup", 1, NULL, '!'},
+	{"ulog-prefix", 1, NULL, '#'},
+	{"ulog-cprange", 1, NULL, 'A'},
+	{"ulog-qthreshold", 1, NULL, 'B'},
+	{ .name = NULL }
+};
+
+static void ULOG_init(struct xt_entry_target *t)
+{
+	struct ipt_ulog_info *loginfo = (struct ipt_ulog_info *) t->data;
+
+	loginfo->nl_group = ULOG_DEFAULT_NLGROUP;
+	loginfo->qthreshold = ULOG_DEFAULT_QTHRESHOLD;
+
+}
+
+#define IPT_LOG_OPT_NLGROUP 0x01
+#define IPT_LOG_OPT_PREFIX 0x02
+#define IPT_LOG_OPT_CPRANGE 0x04
+#define IPT_LOG_OPT_QTHRESHOLD 0x08
+
+static int ULOG_parse(int c, char **argv, int invert, unsigned int *flags,
+                      const void *entry, struct xt_entry_target **target)
+{
+	struct ipt_ulog_info *loginfo =
+	    (struct ipt_ulog_info *) (*target)->data;
+	int group_d;
+
+	switch (c) {
+	case '!':
+		if (*flags & IPT_LOG_OPT_NLGROUP)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Can't specify --ulog-nlgroup twice");
+
+		if (xtables_check_inverse(optarg, &invert, NULL, 0))
+			xtables_error(PARAMETER_PROBLEM,
+				   "Unexpected `!' after --ulog-nlgroup");
+		group_d = atoi(optarg);
+		if (group_d > 32 || group_d < 1)
+			xtables_error(PARAMETER_PROBLEM,
+				   "--ulog-nlgroup has to be between 1 and 32");
+
+		loginfo->nl_group = (1 << (group_d - 1));
+
+		*flags |= IPT_LOG_OPT_NLGROUP;
+		break;
+
+	case '#':
+		if (*flags & IPT_LOG_OPT_PREFIX)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Can't specify --ulog-prefix twice");
+
+		if (xtables_check_inverse(optarg, &invert, NULL, 0))
+			xtables_error(PARAMETER_PROBLEM,
+				   "Unexpected `!' after --ulog-prefix");
+
+		if (strlen(optarg) > sizeof(loginfo->prefix) - 1)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Maximum prefix length %u for --ulog-prefix",
+				   (unsigned int)sizeof(loginfo->prefix) - 1);
+
+		if (strlen(optarg) == 0)
+			xtables_error(PARAMETER_PROBLEM,
+				   "No prefix specified for --ulog-prefix");
+
+		if (strlen(optarg) != strlen(strtok(optarg, "\n")))
+			xtables_error(PARAMETER_PROBLEM,
+				   "Newlines not allowed in --ulog-prefix");
+
+		strcpy(loginfo->prefix, optarg);
+		*flags |= IPT_LOG_OPT_PREFIX;
+		break;
+	case 'A':
+		if (*flags & IPT_LOG_OPT_CPRANGE)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Can't specify --ulog-cprange twice");
+		if (atoi(optarg) < 0)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Negative copy range?");
+		loginfo->copy_range = atoi(optarg);
+		*flags |= IPT_LOG_OPT_CPRANGE;
+		break;
+	case 'B':
+		if (*flags & IPT_LOG_OPT_QTHRESHOLD)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Can't specify --ulog-qthreshold twice");
+		if (atoi(optarg) < 1)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Negative or zero queue threshold ?");
+		if (atoi(optarg) > ULOG_MAX_QLEN)
+			xtables_error(PARAMETER_PROBLEM,
+				   "Maximum queue length exceeded");
+		loginfo->qthreshold = atoi(optarg);
+		*flags |= IPT_LOG_OPT_QTHRESHOLD;
+		break;
+	default:
+		return 0;
+	}
+	return 1;
+}
+
+static void ULOG_save(const void *ip, const struct xt_entry_target *target)
+{
+	const struct ipt_ulog_info *loginfo
+	    = (const struct ipt_ulog_info *) target->data;
+
+	if (strcmp(loginfo->prefix, "") != 0) {
+		fputs("--ulog-prefix ", stdout);
+		xtables_save_string(loginfo->prefix);
+	}
+
+	if (loginfo->nl_group != ULOG_DEFAULT_NLGROUP) {
+		printf("--ulog-nlgroup ");
+		print_groups(loginfo->nl_group);
+	}
+	if (loginfo->copy_range)
+		printf("--ulog-cprange %u ", (unsigned int)loginfo->copy_range);
+
+	if (loginfo->qthreshold != ULOG_DEFAULT_QTHRESHOLD)
+		printf("--ulog-qthreshold %u ", (unsigned int)loginfo->qthreshold);
+}
+
+static void ULOG_print(const void *ip, const struct xt_entry_target *target,
+                       int numeric)
+{
+	const struct ipt_ulog_info *loginfo
+	    = (const struct ipt_ulog_info *) target->data;
+
+	printf("ULOG ");
+	printf("copy_range %u nlgroup ", (unsigned int)loginfo->copy_range);
+	print_groups(loginfo->nl_group);
+	if (strcmp(loginfo->prefix, "") != 0)
+		printf("prefix `%s' ", loginfo->prefix);
+	printf("queue_threshold %u ", (unsigned int)loginfo->qthreshold);
+}
+
+static struct xtables_target ulog_tg_reg = {
+	.name		= "ULOG",
+	.version	= XTABLES_VERSION,
+	.family		= NFPROTO_IPV4,
+	.size		= XT_ALIGN(sizeof(struct ipt_ulog_info)),
+	.userspacesize	= XT_ALIGN(sizeof(struct ipt_ulog_info)),
+	.help		= ULOG_help,
+	.init		= ULOG_init,
+	.parse		= ULOG_parse,
+	.print		= ULOG_print,
+	.save		= ULOG_save,
+	.extra_opts	= ULOG_opts,
+};
+
+void _init(void)
+{
+	xtables_register_target(&ulog_tg_reg);
+}