ipanat: Add IPANT tests

The IPANAT kernel-tests suite tests IPA driver IPANAT functionality.

Change-Id: I11405f8a0efca33bd98dd1c0ff6ac2dd04f2942c
diff --git a/ipanat/test/main.c b/ipanat/test/main.c
new file mode 100644
index 0000000..c49ce3b
--- /dev/null
+++ b/ipanat/test/main.c
@@ -0,0 +1,640 @@
+/*
+ * Copyright (c) 2014, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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.
+ *  * Neither the name of The Linux Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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 <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "ipa_nat_drv.h"
+#include "ipa_nat_drvi.h"
+#include "ipa_nat_test.h"
+
+extern struct ipa_nat_cache ipv4_nat_cache;
+
+int chk_for_loop(u32 tbl_hdl)
+{
+	struct ipa_nat_rule *tbl_ptr;
+	struct ipa_nat_indx_tbl_rule *indx_tbl_ptr;
+	int cnt;
+	uint16_t cur_entry;
+
+	if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl ||
+			tbl_hdl > IPA_NAT_MAX_IP4_TBLS) {
+		IPAERR("invalid table handle passed \n");
+		return -EINVAL;
+	}
+
+	IPADBG("checking ipv4 rules:\n");
+	tbl_ptr = (struct ipa_nat_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_rules_addr;
+	for (cnt = 0;
+		cnt < ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+		cnt++) {
+		if (Read16BitFieldValue(tbl_ptr[cnt].ip_cksm_enbl,ENABLE_FIELD)) {
+			if(Read16BitFieldValue(tbl_ptr[cnt].nxt_indx_pub_port,
+							NEXT_INDEX_FIELD) == cnt)
+			{
+				IPAERR("Infinite loop detected, entry\n");
+				ipa_nati_print_rule(&tbl_ptr[cnt], cnt);
+				return -EINVAL;
+			}
+		}
+	}
+
+	/* Print ipv4 expansion rules */
+	IPADBG("checking ipv4 active expansion rules:\n");
+	tbl_ptr = (struct ipa_nat_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_expn_rules_addr;
+	for (cnt = 0;
+		cnt <= ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].expn_table_entries;
+		cnt++) {
+		if (Read16BitFieldValue(tbl_ptr[cnt].ip_cksm_enbl,
+								ENABLE_FIELD)) {
+			cur_entry =
+				cnt + ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+			if (Read16BitFieldValue(tbl_ptr[cnt].nxt_indx_pub_port,
+							NEXT_INDEX_FIELD) == cur_entry)
+			{
+				IPAERR("Infinite loop detected\n");
+				ipa_nati_print_rule(&tbl_ptr[cnt],
+					(cnt + ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries));
+				return -EINVAL;
+			}
+		}
+	}
+
+	/* Print ipv4 index rules */
+	IPADBG("checking ipv4 index active rules: \n");
+	indx_tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_addr;
+	for (cnt = 0;
+		 cnt < ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_TBL_ENTRY_FIELD)) {
+			if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_NEXT_INDEX_FILED) == cnt)
+			{
+				IPAERR("Infinite loop detected\n");
+				ipa_nati_print_index_rule(&indx_tbl_ptr[cnt], cnt, 0);
+				return -EINVAL;
+			}
+		}
+	}
+
+	/* Print ipv4 index expansion rules */
+	IPADBG("Checking ipv4 index expansion active rules: \n");
+	indx_tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_expn_addr;
+	for (cnt = 0;
+		cnt <= ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].expn_table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_TBL_ENTRY_FIELD)) {
+			cur_entry =
+				cnt + ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+			if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_NEXT_INDEX_FILED) == cur_entry)
+			{
+				IPAERR("Infinite loop detected\n");
+				ipa_nati_print_index_rule(&indx_tbl_ptr[cnt],
+					(cnt + ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries),
+				ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].index_expn_table_meta[cnt].prev_index);
+				return -EINVAL;
+			}
+		}
+	}
+	return 0;
+}
+
+uint8_t is_base_entry_valid(u32 tbl_hdl, u16 entry)
+{
+	struct ipa_nat_rule *tbl_ptr;
+
+	if (entry >
+		ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries)
+	{
+		tbl_ptr = (struct ipa_nat_rule *)
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_expn_rules_addr;
+		entry -=
+			ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+	}
+	else
+	{
+		tbl_ptr = (struct ipa_nat_rule *)
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_rules_addr;
+	}
+	return (Read16BitFieldValue(tbl_ptr[entry].ip_cksm_enbl,
+							ENABLE_FIELD));
+}
+
+uint8_t is_index_entry_valid(u32 tbl_hdl, u16 entry)
+{
+	struct ipa_nat_indx_tbl_rule *tbl_ptr;
+
+	if (entry >
+		ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries)
+	{
+		tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_expn_addr;
+		entry -=
+			ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+	}
+	else
+	{
+		tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_addr;
+	}
+	if (Read16BitFieldValue(tbl_ptr[entry].tbl_entry_nxt_indx,
+						INDX_TBL_TBL_ENTRY_FIELD)) {
+		return 1;
+	}
+	else
+	{
+		return 0;
+	}
+}
+
+int chk_for_validity(u32 tbl_hdl)
+{
+	struct ipa_nat_rule *tbl_ptr;
+	struct ipa_nat_indx_tbl_rule *indx_tbl_ptr;
+	uint16_t nxt_index, prv_index;
+	int cnt;
+
+	if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl ||
+			tbl_hdl > IPA_NAT_MAX_IP4_TBLS) {
+		IPAERR("invalid table handle passed \n");
+		return -EINVAL;
+	}
+
+	/* Validate base table next_indx and prev_indx values */
+	IPADBG("Validating ipv4 active rules: \n");
+	tbl_ptr = (struct ipa_nat_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_rules_addr;
+	for (cnt = 0;
+		cnt < ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(tbl_ptr[cnt].ip_cksm_enbl,
+						ENABLE_FIELD)) {
+			nxt_index =
+			Read16BitFieldValue(tbl_ptr[cnt].nxt_indx_pub_port,
+						NEXT_INDEX_FIELD);
+			if (!is_base_entry_valid(tbl_hdl, nxt_index)) {
+				IPAERR("Invalid next index found, entry:%d\n", cnt);
+			}
+		}
+	}
+
+	IPADBG("Validating ipv4 expansion active rules: \n");
+	tbl_ptr = (struct ipa_nat_rule *)
+			ipv4_nat_cache.ip4_tbl[tbl_hdl-1].ipv4_expn_rules_addr;
+	for (cnt = 0;
+		cnt <= ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].expn_table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(tbl_ptr[cnt].ip_cksm_enbl,
+							ENABLE_FIELD)) {
+			/* Validate next index */
+			nxt_index =
+				Read16BitFieldValue(tbl_ptr[cnt].nxt_indx_pub_port,
+									NEXT_INDEX_FIELD);
+			if (!is_base_entry_valid(tbl_hdl, nxt_index)) {
+				IPAERR("Invalid next index found, entry:%d\n", cnt);
+			}
+			/* Validate previous index */
+			prv_index =
+				Read16BitFieldValue(tbl_ptr[cnt].sw_spec_params,
+						SW_SPEC_PARAM_PREV_INDEX_FIELD);
+			if (!is_base_entry_valid(tbl_hdl, prv_index)) {
+				IPAERR("Invalid Previous index found, entry:%d\n", cnt);
+			}
+		}
+	}
+
+	IPADBG("Validating ipv4 index active rules: \n");
+	indx_tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_addr;
+	for (cnt = 0;
+		cnt < ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_TBL_ENTRY_FIELD)) {
+			nxt_index =
+				Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+							INDX_TBL_NEXT_INDEX_FILED);
+			if (!is_index_entry_valid(tbl_hdl, nxt_index)) {
+				IPAERR("Invalid next index found, entry:%d\n", cnt);
+			}
+		}
+	}
+
+	IPADBG("Validating ipv4 index expansion active rules: \n");
+	indx_tbl_ptr = (struct ipa_nat_indx_tbl_rule *)
+	ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_table_expn_addr;
+	for (cnt = 0;
+		cnt <= ipv4_nat_cache.ip4_tbl[tbl_hdl - 1].expn_table_entries;
+			 cnt++) {
+		if (Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+								INDX_TBL_TBL_ENTRY_FIELD)) {
+			/* Validate next index*/
+			nxt_index =
+				Read16BitFieldValue(indx_tbl_ptr[cnt].tbl_entry_nxt_indx,
+								INDX_TBL_NEXT_INDEX_FILED);
+			if (!is_index_entry_valid(tbl_hdl, nxt_index)) {
+				IPAERR("Invalid next index found, entry:%d\n", cnt);
+			}
+
+			/* Validate previous index*/
+			prv_index =
+				ipv4_nat_cache.ip4_tbl[tbl_hdl-1].index_expn_table_meta[cnt].prev_index;
+
+			if (!is_index_entry_valid(tbl_hdl, prv_index)) {
+				IPAERR("Invalid Previous index found, entry:%d\n", cnt);
+			}
+		}
+	}
+
+	return 0;
+}
+
+int ipa_nat_validate_ipv4_table(u32 tbl_hdl)
+{
+	int ret = 0;
+
+	ret = chk_for_loop(tbl_hdl);
+	if (ret)
+		return ret;
+	ret = chk_for_validity(tbl_hdl);
+
+	return ret;
+}
+
+int main(int argc, char* argv[])
+{
+	int exec = 0, pass = 0, ret;
+	int cnt, nt=1;
+	int total_entries = 100;
+	u8 sep = 0;
+	u32 tbl_hdl = 0;
+	u32 pub_ip_add = 0x011617c0;   /* "192.23.22.1" */
+
+	IPADBG("ipa_nat_testing user space nat driver\n");
+
+	if (argc == 4)
+	{
+		if (!strncmp(argv[1], "reg", 3))
+		{
+			nt = atoi(argv[2]);
+			total_entries = atoi(argv[3]);
+			IPADBG("Reg: %d, Nat Entries: %d\n", nt, total_entries);
+		}
+		else if (!strncmp(argv[1], "sep", 3))
+		{
+			sep = 1;
+			nt = atoi(argv[2]);
+			total_entries = atoi(argv[3]);
+		}
+	}
+	else if (argc == 3)
+	{
+		if (!strncmp(argv[1], "inotify", 7))
+		{
+			ipa_nat_test021(total_entries, atoi(argv[2]));
+			return 0;
+		}
+		else if (!strncmp(argv[1], "sep", 3))
+		{
+			sep = 1;
+			total_entries = atoi(argv[2]);
+		}
+	}
+	else if (argc == 2)
+	{
+		total_entries = atoi(argv[1]);
+		IPADBG("Nat Entries: %d\n", total_entries);
+	}
+
+
+	for (cnt=0; cnt<nt; cnt++)
+	{
+		IPADBG("%s():Executing %d time \n",__FUNCTION__, cnt);
+
+		if (!sep)
+		{
+			ret = ipa_nat_add_ipv4_tbl(pub_ip_add, total_entries, &tbl_hdl);
+			CHECK_ERR(ret);
+		}
+
+		if (sep)
+		{
+			IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+			ret = ipa_nat_test000(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test00%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+			ret = ipa_nat_test001(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test00%d Fail\n", exec);
+			}
+			exec++;
+		}
+
+		IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+		ret = ipa_nat_test002(total_entries, tbl_hdl, sep);
+		if (!ret)
+		{
+			pass++;
+		}
+		else
+		{
+			IPAERR("ipa_nat_test00%d Fail\n", exec);
+		}
+		exec++;
+
+		if (sep)
+		{
+			IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+			ret = ipa_nat_test003(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test00%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+			ret = ipa_nat_test004(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test00%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+			ret = ipa_nat_test005(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test00%d Fail\n", exec);
+			}
+			exec++;
+		}
+
+		IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+		ret = ipa_nat_test006(total_entries, tbl_hdl, sep);
+		if (!ret)
+		{
+			pass++;
+		}
+		else
+		{
+			IPAERR("ipa_nat_test00%d Fail\n", exec);
+		}
+		exec++;
+
+		IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+		ret = ipa_nat_test007(total_entries, tbl_hdl, sep);
+		if (!ret)
+		{
+			pass++;
+		}
+		else
+		{
+			IPAERR("ipa_nat_test00%d Fail\n", exec);
+		}
+		exec++;
+
+		IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+		ret = ipa_nat_test008(total_entries, tbl_hdl, sep);
+		if (!ret)
+		{
+			pass++;
+		}
+		else
+		{
+			IPAERR("ipa_nat_test00%d Fail\n", exec);
+		}
+		exec++;
+
+		IPADBG("\n\nExecuting ipa_nat_test00%d\n", exec);
+		ret = ipa_nat_test009(total_entries, tbl_hdl, sep);
+		if (!ret)
+		{
+			pass++;
+		}
+		else
+		{
+			IPAERR("ipa_nat_test00%d Fail\n", exec);
+		}
+		exec++;
+
+		if (total_entries >= IPA_NAT_TEST_PRE_COND_TE)
+		{
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test010(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test011(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test012(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test013(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test014(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test015(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test016(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test017(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test018(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test019(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test020(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+
+			IPADBG("\n\nExecuting ipa_nat_test0%d\n", exec);
+			ret = ipa_nat_test022(total_entries, tbl_hdl, sep);
+			if (!ret)
+			{
+				pass++;
+			}
+			else
+			{
+				IPAERR("ipa_nat_test0%d Fail\n", exec);
+			}
+			exec++;
+		}
+
+		if (!sep)
+		{
+			ret = ipa_nat_del_ipv4_tbl(tbl_hdl);
+			CHECK_ERR(ret);
+		}
+	}
+	/*=======  Printing Results ==========*/
+	IPADBG("Total ipa_nat Tests Run:%d, Pass:%d, Fail:%d\n",exec, pass, exec-pass);
+	return 0;
+}