[libnftables PATCH] test: add testbench for XML

[Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>]

This patch add a testbench for XML parsing, which may be extended to also test JSON.

To use it:
 $ cd test/
 $ make nft-parsing-test
 $ ./nft-parsing-test xmlfiles/

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
---
 test/Makefile.am                 |    6 ++
 test/nft-parsing-test.c          |  125 ++++++++++++++++++++++++++++++++++++++
 test/xmlfiles/chain1.xml         |   11 +++
 test/xmlfiles/chain2.xml         |   11 +++
 test/xmlfiles/chain3.xml         |   11 +++
 test/xmlfiles/rule_bitwise.xml   |   25 ++++++++
 test/xmlfiles/rule_byteorder.xml |   13 ++++
 test/xmlfiles/rule_cmp.xml       |   16 +++++
 test/xmlfiles/rule_counter.xml   |   10 +++
 test/xmlfiles/rule_ct.xml        |   11 +++
 test/xmlfiles/rule_exthdr.xml    |   12 ++++
 test/xmlfiles/rule_immediate.xml |   31 +++++++++
 test/xmlfiles/rule_limit.xml     |   10 +++
 test/xmlfiles/rule_log.xml       |   12 ++++
 test/xmlfiles/rule_lookup.xml    |   11 +++
 test/xmlfiles/rule_match.xml     |   10 +++
 test/xmlfiles/rule_meta.xml      |   10 +++
 test/xmlfiles/rule_nat.xml       |   22 +++++++
 test/xmlfiles/rule_payload.xml   |   12 ++++
 test/xmlfiles/rule_target.xml    |   10 +++
 test/xmlfiles/table1.xml         |    6 ++
 test/xmlfiles/table2.xml         |    6 ++
 22 files changed, 391 insertions(+)
 create mode 100644 test/Makefile.am
 create mode 100644 test/nft-parsing-test.c
 create mode 100644 test/xmlfiles/chain1.xml
 create mode 100644 test/xmlfiles/chain2.xml
 create mode 100644 test/xmlfiles/chain3.xml
 create mode 100644 test/xmlfiles/rule_bitwise.xml
 create mode 100644 test/xmlfiles/rule_byteorder.xml
 create mode 100644 test/xmlfiles/rule_cmp.xml
 create mode 100644 test/xmlfiles/rule_counter.xml
 create mode 100644 test/xmlfiles/rule_ct.xml
 create mode 100644 test/xmlfiles/rule_exthdr.xml
 create mode 100644 test/xmlfiles/rule_immediate.xml
 create mode 100644 test/xmlfiles/rule_limit.xml
 create mode 100644 test/xmlfiles/rule_log.xml
 create mode 100644 test/xmlfiles/rule_lookup.xml
 create mode 100644 test/xmlfiles/rule_match.xml
 create mode 100644 test/xmlfiles/rule_meta.xml
 create mode 100644 test/xmlfiles/rule_nat.xml
 create mode 100644 test/xmlfiles/rule_payload.xml
 create mode 100644 test/xmlfiles/rule_target.xml
 create mode 100644 test/xmlfiles/table1.xml
 create mode 100644 test/xmlfiles/table2.xml

diff --git a/Makefile.am b/Makefile.am
index 6999f51..e035ea1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,8 +2,8 @@ include $(top_srcdir)/Make_global.am
 
 ACLOCAL_AMFLAGS = -I m4
 
-SUBDIRS = src include examples
-DIST_SUBDIRS = src include examples
+SUBDIRS = src include examples test
+DIST_SUBDIRS = src include examples test
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libnftables.pc
diff --git a/configure.ac b/configure.ac
index 0eec5bd..eaf3bb8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,5 +38,5 @@ regular_CFLAGS="-Wall -Waggregate-return -Wmissing-declarations \
 	-Wformat=2 -pipe"
 AC_SUBST([regular_CPPFLAGS])
 AC_SUBST([regular_CFLAGS])
-AC_CONFIG_FILES([Makefile src/Makefile include/Makefile include/libnftables/Makefile include/linux/Makefile include/linux/netfilter/Makefile examples/Makefile libnftables.pc doxygen.cfg])
+AC_CONFIG_FILES([Makefile src/Makefile include/Makefile include/libnftables/Makefile include/linux/Makefile include/linux/netfilter/Makefile examples/Makefile test/Makefile libnftables.pc doxygen.cfg])
 AC_OUTPUT
diff --git a/examples/chain.xml b/examples/chain.xml
deleted file mode 100644
index 01ccb85..0000000
--- a/examples/chain.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<chain name="test" handle="0" bytes="59" packets="1" version="0">
-	<properties>
-		<type>filter</type>
-		<table>filter</table>
-		<prio>1</prio>
-		<use>0</use>
-		<hooknum>4</hooknum>
-		<policy>1</policy>
-		<family>10</family>
-	</properties>
-</chain>
diff --git a/examples/rule.xml b/examples/rule.xml
deleted file mode 100644
index b1de25a..0000000
--- a/examples/rule.xml
+++ /dev/null
@@ -1,85 +0,0 @@
-<?xml version="1.0"?>
-<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
-  <rule_flags>0</rule_flags>
-  <flags>127</flags>
-  <compat_flags>0</compat_flags>
-  <compat_proto>0</compat_proto>
-  <expr type="meta">
-    <dreg>1</dreg>
-    <key>4</key>
-  </expr>
-  <expr type="cmp">
-    <sreg>1</sreg>
-    <op>eq</op>
-    <cmpdata>
-      <data_reg type="value">
-        <len>1</len>
-        <data0>0x04000000</data0>
-      </data_reg>
-    </cmpdata>
-  </expr>
-  <expr type="payload">
-    <dreg>1</dreg>
-    <base>1</base>
-    <offset>12</offset>
-    <len>4</len>
-  </expr>
-  <expr type="cmp">
-    <sreg>1</sreg>
-    <op>eq</op>
-    <cmpdata>
-      <data_reg type="value">
-        <len>1</len>
-        <data0>0x96d60496</data0>
-      </data_reg>
-    </cmpdata>
-  </expr>
-  <expr type="payload">
-    <dreg>1</dreg>
-    <base>1</base>
-    <offset>16</offset>
-    <len>4</len>
-  </expr>
-  <expr type="cmp">
-    <sreg>1</sreg>
-    <op>eq</op>
-    <cmpdata>
-      <data_reg type="value">
-        <len>1</len>
-        <data0>0x96d60329</data0>
-      </data_reg>
-    </cmpdata>
-  </expr>
-  <expr type="payload">
-    <dreg>1</dreg>
-    <base>1</base>
-    <offset>9</offset>
-    <len>1</len>
-  </expr>
-  <expr type="cmp">
-    <sreg>1</sreg>
-    <op>eq</op>
-    <cmpdata>
-      <data_reg type="value">
-        <len>1</len>
-        <data0>0x06000000</data0>
-      </data_reg>
-    </cmpdata>
-  </expr>
-  <expr type="match">
-    <name>state</name>
-    <rev>0</rev>
-   <info>
-    </info>
-  </expr>
-  <expr type="counter">
-    <pkts>123123</pkts>
-    <bytes>321321</bytes>
-  </expr>
-  <expr type="target">
-    <name>LOG</name>
-    <rev>0</rev>
-    <info>
-    </info>
-  </expr>
-</rule>
diff --git a/examples/table.xml b/examples/table.xml
deleted file mode 100644
index a397d52..0000000
--- a/examples/table.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<table name="filter" version="0">
-	<properties>
-		<family>2</family>
-		<table_flags>0</table_flags>
-	</properties>
-</table>
diff --git a/test/Makefile.am b/test/Makefile.am
new file mode 100644
index 0000000..6941c3c
--- /dev/null
+++ b/test/Makefile.am
@@ -0,0 +1,6 @@
+include $(top_srcdir)/Make_global.am
+
+check_PROGRAMS = nft-parsing-test
+
+nft_parsing_test_SOURCES = nft-parsing-test.c
+nft_parsing_test_LDADD = ../src/libnftables.la ${LIBMNL_LIBS} ${LIBXML_LIBS}
diff --git a/test/nft-parsing-test.c b/test/nft-parsing-test.c
new file mode 100644
index 0000000..dc0ab85
--- /dev/null
+++ b/test/nft-parsing-test.c
@@ -0,0 +1,125 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+
+#include <mxml.h>
+
+#include <libmnl/libmnl.h> /*nlmsghdr*/
+#include <libnftables/table.h>
+#include <libnftables/chain.h>
+#include <libnftables/rule.h>
+
+static int test_xml(const char *filename)
+{
+	int ret = -1;
+	struct nft_table *t = NULL;
+	struct nft_chain *c = NULL;
+	struct nft_rule *r = NULL;
+	FILE *fp;
+	mxml_node_t *tree = NULL;;
+	char *xml = NULL;
+
+	fp = fopen(filename, "r");
+	tree = mxmlLoadFile(NULL, fp, MXML_NO_CALLBACK);
+	fclose(fp);
+
+	xml = mxmlSaveAllocString(tree, MXML_NO_CALLBACK);
+	if (xml == NULL)
+		return -1;
+
+	if (tree == NULL)
+		return -1;
+
+	/* Check what parsing should be done */
+	if (strcmp(tree->value.opaque, "table") == 0) {
+		t = nft_table_alloc();
+		if (t != NULL) {
+			if (nft_table_parse(t, NFT_TABLE_PARSE_XML, xml) == 0)
+				ret = 0;
+
+			nft_table_free(t);
+		}
+	} else if (strcmp(tree->value.opaque, "chain") == 0) {
+		c = nft_chain_alloc();
+		if (c != NULL) {
+			if (nft_chain_parse(c, NFT_CHAIN_PARSE_XML, xml) == 0)
+				ret = 0;
+
+			nft_chain_free(c);
+		}
+	} else if (strcmp(tree->value.opaque, "rule") == 0) {
+		r = nft_rule_alloc();
+		if (r != NULL) {
+			if (nft_rule_parse(r, NFT_RULE_PARSE_XML, xml) == 0)
+				ret = 0;
+
+			nft_rule_free(r);
+		}
+	}
+
+	return ret;
+}
+
+static int test_json(const char *filename)
+{
+	/* XXX parse file JSON file, in case of failure return -1 */
+	return -1;
+}
+
+int main(int argc, char *argv[])
+{
+	DIR *d;
+	struct dirent *dent;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: %s <directory>\n", argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	d = opendir(argv[1]);
+	if (d == NULL) {
+		perror("opendir");
+		exit(EXIT_FAILURE);
+	}
+
+	char *path = malloc(sizeof(argv[1]));
+	char *filewpath = malloc(sizeof(path)+4096);
+	strcpy(path, argv[1]);
+
+	if (path[strlen(path)-1] != '/')
+		strcat(path, "/");
+
+
+	while ((dent = readdir(d)) != NULL) {
+		int len = strlen(dent->d_name);
+
+		if (strcmp(dent->d_name, ".") == 0 ||
+		    strcmp(dent->d_name, "..") == 0)
+			continue;
+
+		strcpy(filewpath, path);
+		strcat(filewpath, dent->d_name);
+
+		if (strcmp(&dent->d_name[len-5], ".json") == 0) {
+			printf("parsing json file %s ..\t", filewpath);
+			if (test_json(filewpath) < 0)
+				printf("FAILED\n");
+			else
+				printf("OK\n");
+		}
+
+		if (strcmp(&dent->d_name[len-4], ".xml") == 0) {
+			printf("parsing xml file %s ..\t", filewpath);
+			if (test_xml(filewpath) < 0)
+				printf("FAILED\n");
+			else
+				printf("OK\n");
+		}
+	}
+
+	free(path);
+	free(filewpath);
+	closedir(d);
+	return 0;
+}
diff --git a/test/xmlfiles/chain1.xml b/test/xmlfiles/chain1.xml
new file mode 100644
index 0000000..7b23904
--- /dev/null
+++ b/test/xmlfiles/chain1.xml
@@ -0,0 +1,11 @@
+<chain name="test" handle="0" bytes="0" packets="0" version="0">
+	<properties>
+		<type>filter</type>
+		<table>filter</table>
+		<prio>0</prio>
+		<use>0</use>
+		<hooknum>0</hooknum>
+		<policy>0</policy>
+		<family>2</family>
+	</properties>
+</chain>
diff --git a/test/xmlfiles/chain2.xml b/test/xmlfiles/chain2.xml
new file mode 100644
index 0000000..01ccb85
--- /dev/null
+++ b/test/xmlfiles/chain2.xml
@@ -0,0 +1,11 @@
+<chain name="test" handle="0" bytes="59" packets="1" version="0">
+	<properties>
+		<type>filter</type>
+		<table>filter</table>
+		<prio>1</prio>
+		<use>0</use>
+		<hooknum>4</hooknum>
+		<policy>1</policy>
+		<family>10</family>
+	</properties>
+</chain>
diff --git a/test/xmlfiles/chain3.xml b/test/xmlfiles/chain3.xml
new file mode 100644
index 0000000..31e7142
--- /dev/null
+++ b/test/xmlfiles/chain3.xml
@@ -0,0 +1,11 @@
+<chain name="foo" handle="100" bytes="59264154979" packets="2548796325" version="0">
+	<properties>
+		<type>foo</type>
+		<table>nat</table>
+		<prio>123</prio>
+		<use>321</use>
+		<hooknum>123</hooknum>
+		<policy>123</policy>
+		<family>123</family>
+	</properties>
+</chain>
diff --git a/test/xmlfiles/rule_bitwise.xml b/test/xmlfiles/rule_bitwise.xml
new file mode 100644
index 0000000..0501c6c
--- /dev/null
+++ b/test/xmlfiles/rule_bitwise.xml
@@ -0,0 +1,25 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="bitwise">
+    <sreg>1</sreg>
+    <dreg>12</dreg>
+    <mask>
+      <data_reg type="value">
+        <len>1</len>
+        <data0>0x04000000</data0>
+      </data_reg>
+    </mask>
+    <xor>
+      <data_reg type="value">
+        <len>4</len>
+        <data0>0xfaceb00c</data0>
+        <data1>0xc1cac1ca</data1>
+        <data2>0xcafecafe</data2>
+        <data3>0xdeadbeef</data3>
+      </data_reg>
+    </xor>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_byteorder.xml b/test/xmlfiles/rule_byteorder.xml
new file mode 100644
index 0000000..3b5d64d
--- /dev/null
+++ b/test/xmlfiles/rule_byteorder.xml
@@ -0,0 +1,13 @@
+<rule family="1" table="test" chain="test" handle="1000" version="0">
+  <rule_flags>123</rule_flags>
+  <flags>123</flags>
+  <compat_flags>123</compat_flags>
+  <compat_proto>123</compat_proto>
+  <expr type="byteorder">
+	<sreg>123</sreg>
+	<dreg>321</dreg>
+	<op>111</op>
+	<len>15</len>
+	<size>15</size>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_cmp.xml b/test/xmlfiles/rule_cmp.xml
new file mode 100644
index 0000000..582b127
--- /dev/null
+++ b/test/xmlfiles/rule_cmp.xml
@@ -0,0 +1,16 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="cmp">
+    <sreg>1</sreg>
+    <op>eq</op>
+    <cmpdata>
+      <data_reg type="value">
+        <len>1</len>
+        <data0>0x04000000</data0>
+      </data_reg>
+    </cmpdata>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_counter.xml b/test/xmlfiles/rule_counter.xml
new file mode 100644
index 0000000..bb71013
--- /dev/null
+++ b/test/xmlfiles/rule_counter.xml
@@ -0,0 +1,10 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="counter">
+    <pkts>123123</pkts>
+    <bytes>321321</bytes>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_ct.xml b/test/xmlfiles/rule_ct.xml
new file mode 100644
index 0000000..c993ae5
--- /dev/null
+++ b/test/xmlfiles/rule_ct.xml
@@ -0,0 +1,11 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="ct">
+    <dreg>1555555</dreg>
+    <dir>15</dir>
+    <key>15</key>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_exthdr.xml b/test/xmlfiles/rule_exthdr.xml
new file mode 100644
index 0000000..0abeb3c
--- /dev/null
+++ b/test/xmlfiles/rule_exthdr.xml
@@ -0,0 +1,12 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="exthdr">
+    <dreg>123</dreg>
+    <type>15</type>
+    <offset>123</offset>
+    <len>321</len>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_immediate.xml b/test/xmlfiles/rule_immediate.xml
new file mode 100644
index 0000000..a566ca5
--- /dev/null
+++ b/test/xmlfiles/rule_immediate.xml
@@ -0,0 +1,31 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="immediate">
+    <dreg>1</dreg>
+    <immdata>
+      <data_reg type="value">
+        <len>1</len>
+	<data0>0xaabbccdd</data0>
+      </data_reg>
+    </immdata>
+  </expr>
+  <expr type="immediate">
+    <dreg>2</dreg>
+    <immdata>
+      <data_reg type="verdict">
+        <verdict>1</verdict>
+      </data_reg>
+    </immdata>
+  </expr>
+  <expr type="immediate">
+    <dreg>3</dreg>
+    <immdata>
+      <data_reg type="chain">
+        <chain>testchain</chain>
+      </data_reg>
+    </immdata>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_limit.xml b/test/xmlfiles/rule_limit.xml
new file mode 100644
index 0000000..926aa0e
--- /dev/null
+++ b/test/xmlfiles/rule_limit.xml
@@ -0,0 +1,10 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="limit">
+    <rate>123123</rate>
+    <depth>321321</depth>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_log.xml b/test/xmlfiles/rule_log.xml
new file mode 100644
index 0000000..5471fee
--- /dev/null
+++ b/test/xmlfiles/rule_log.xml
@@ -0,0 +1,12 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="log">
+    <group>123123121</group>
+    <snaplen>4000000</snaplen>
+    <qthreshold>1222222</qthreshold>
+    <prefix>prefixtest</prefix>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_lookup.xml b/test/xmlfiles/rule_lookup.xml
new file mode 100644
index 0000000..ee47068
--- /dev/null
+++ b/test/xmlfiles/rule_lookup.xml
@@ -0,0 +1,11 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="lookup">
+    <sreg>123</sreg>
+    <dreg>123</dreg>
+    <set>set_name_test</set>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_match.xml b/test/xmlfiles/rule_match.xml
new file mode 100644
index 0000000..fdc28f5
--- /dev/null
+++ b/test/xmlfiles/rule_match.xml
@@ -0,0 +1,10 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="match">
+    <name>state</name>
+    <rev>0</rev>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_meta.xml b/test/xmlfiles/rule_meta.xml
new file mode 100644
index 0000000..3c14bad
--- /dev/null
+++ b/test/xmlfiles/rule_meta.xml
@@ -0,0 +1,10 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="meta">
+    <dreg>1</dreg>
+    <key>4</key>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_nat.xml b/test/xmlfiles/rule_nat.xml
new file mode 100644
index 0000000..868be50
--- /dev/null
+++ b/test/xmlfiles/rule_nat.xml
@@ -0,0 +1,22 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="nat">
+    <sreg_addr_min>1</sreg_addr_min>
+    <sreg_addr_max>1</sreg_addr_max>
+    <sreg_proto_min>1</sreg_proto_min>
+    <sreg_proto_max>1</sreg_proto_max>
+    <family>AF_INET6</family>
+    <type>NFT_NAT_DNAT</type>
+  </expr>
+  <expr type="nat">
+    <sreg_addr_min>1</sreg_addr_min>
+    <sreg_addr_max>1</sreg_addr_max>
+    <sreg_proto_min>1</sreg_proto_min>
+    <sreg_proto_max>1</sreg_proto_max>
+    <family>AF_INET</family>
+    <type>NFT_NAT_SNAT</type>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_payload.xml b/test/xmlfiles/rule_payload.xml
new file mode 100644
index 0000000..bbbc84f
--- /dev/null
+++ b/test/xmlfiles/rule_payload.xml
@@ -0,0 +1,12 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="payload">
+    <dreg>1</dreg>
+    <base>1</base>
+    <offset>12</offset>
+    <len>4</len>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/rule_target.xml b/test/xmlfiles/rule_target.xml
new file mode 100644
index 0000000..a41d794
--- /dev/null
+++ b/test/xmlfiles/rule_target.xml
@@ -0,0 +1,10 @@
+<rule family="2" table="filter" chain="INPUT" handle="100" version="0">
+  <rule_flags>0</rule_flags>
+  <flags>127</flags>
+  <compat_flags>0</compat_flags>
+  <compat_proto>0</compat_proto>
+  <expr type="target">
+    <name>LOG</name>
+    <rev>0</rev>
+  </expr>
+</rule>
diff --git a/test/xmlfiles/table1.xml b/test/xmlfiles/table1.xml
new file mode 100644
index 0000000..a397d52
--- /dev/null
+++ b/test/xmlfiles/table1.xml
@@ -0,0 +1,6 @@
+<table name="filter" version="0">
+	<properties>
+		<family>2</family>
+		<table_flags>0</table_flags>
+	</properties>
+</table>
diff --git a/test/xmlfiles/table2.xml b/test/xmlfiles/table2.xml
new file mode 100644
index 0000000..de8e570
--- /dev/null
+++ b/test/xmlfiles/table2.xml
@@ -0,0 +1,6 @@
+<table name="nat" version="0">
+	<properties>
+		<family>10</family>
+		<table_flags>123</table_flags>
+	</properties>
+</table>