Initial Commit4

data-ipa-cfg-mgr/ipanat/src/ipa_nat_drv.c

@@ -0,0 +1,175 @@
+/*
+Copyright (c) 2013, 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 "ipa_nat_drv.h"
+#include "ipa_nat_drvi.h"
+
+/**
+ * ipa_nat_add_ipv4_tbl() - create ipv4 nat table
+ * @public_ip_addr: [in] public ipv4 address
+ * @number_of_entries: [in]  number of nat entries
+ * @table_handle: [out] Handle of new ipv4 nat table
+ *
+ * To create new ipv4 nat table
+ *
+ * Returns:	0  On Success, negative on failure
+ */
+int ipa_nat_add_ipv4_tbl(uint32_t public_ip_addr,
+		uint16_t number_of_entries,
+		uint32_t *tbl_hdl)
+{
+  int ret;
+
+  if (NULL == tbl_hdl || 0 == number_of_entries) {
+    IPAERR("Invalid parameters \n");
+    return -EINVAL;
+  }
+
+  ret = ipa_nati_add_ipv4_tbl(public_ip_addr,
+								number_of_entries,
+								tbl_hdl);
+  if (ret != 0) {
+    IPAERR("unable to add table \n");
+    return -EINVAL;
+  }
+  IPADBG("Returning table handle 0x%x\n", *tbl_hdl);
+
+  return ret;
+} /* __ipa_nat_add_ipv4_tbl() */
+
+/**
+ * ipa_nat_del_ipv4_tbl() - delete ipv4 table
+ * @table_handle: [in] Handle of ipv4 nat table
+ *
+ * To delete given ipv4 nat table
+ *
+ * Returns:	0  On Success, negative on failure
+ */
+int ipa_nat_del_ipv4_tbl(uint32_t tbl_hdl)
+{
+  if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl ||
+      tbl_hdl > IPA_NAT_MAX_IP4_TBLS) {
+    IPAERR("invalid table handle passed \n");
+    return -EINVAL;
+  }
+  IPADBG("Passed Table Handle: 0x%x\n", tbl_hdl);
+
+  return ipa_nati_del_ipv4_table(tbl_hdl);
+}
+
+/**
+ * ipa_nat_add_ipv4_rule() - to insert new ipv4 rule
+ * @table_handle: [in] handle of ipv4 nat table
+ * @rule: [in]  Pointer to new rule
+ * @rule_handle: [out] Return the handle to rule
+ *
+ * To insert new ipv4 nat rule into ipv4 nat table
+ *
+ * Returns:	0  On Success, negative on failure
+ */
+int ipa_nat_add_ipv4_rule(uint32_t tbl_hdl,
+		const ipa_nat_ipv4_rule *clnt_rule,
+		uint32_t *rule_hdl)
+{
+  int result = -EINVAL;
+
+  if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl ||
+      tbl_hdl > IPA_NAT_MAX_IP4_TBLS || NULL == rule_hdl ||
+      NULL == clnt_rule) {
+    IPAERR("invalide table handle passed \n");
+    return result;
+  }
+  IPADBG("Passed Table handle: 0x%x\n", tbl_hdl);
+
+  if (ipa_nati_add_ipv4_rule(tbl_hdl, clnt_rule, rule_hdl) != 0) {
+		return result;
+	}
+
+  IPADBG("returning rule handle 0x%x\n", *rule_hdl);
+  return 0;
+}
+
+
+/**
+ * ipa_nat_del_ipv4_rule() - to delete ipv4 nat rule
+ * @table_handle: [in] handle of ipv4 nat table
+ * @rule_handle: [in] ipv4 nat rule handle
+ *
+ * To insert new ipv4 nat rule into ipv4 nat table
+ *
+ * Returns:	0  On Success, negative on failure
+ */
+int ipa_nat_del_ipv4_rule(uint32_t tbl_hdl,
+		uint32_t rule_hdl)
+{
+  int result = -EINVAL;
+
+  if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl ||
+      IPA_NAT_INVALID_NAT_ENTRY == rule_hdl) {
+    IPAERR("invalide parameters\n");
+    return result;
+  }
+  IPADBG("Passed Table: 0x%x and rule handle 0x%x\n", tbl_hdl, rule_hdl);
+
+  result = ipa_nati_del_ipv4_rule(tbl_hdl, rule_hdl);
+  if (result) {
+    IPAERR("unable to delete rule from hw \n");
+    return result;
+  }
+
+  return 0;
+}
+
+/**
+ * ipa_nat_query_timestamp() - to query timestamp
+ * @table_handle: [in] handle of ipv4 nat table
+ * @rule_handle: [in] ipv4 nat rule handle
+ * @time_stamp: [out] time stamp of rule
+ *
+ * To retrieve the timestamp that lastly the
+ * nat rule was accessed
+ *
+ * Returns:	0  On Success, negative on failure
+ */
+int ipa_nat_query_timestamp(uint32_t  tbl_hdl,
+		uint32_t  rule_hdl,
+		uint32_t  *time_stamp)
+{
+
+  if (0 == tbl_hdl || tbl_hdl > IPA_NAT_MAX_IP4_TBLS ||
+      NULL == time_stamp) {
+    IPAERR("invalid parameters passed \n");
+    return -EINVAL;
+  }
+  IPADBG("Passed Table: 0x%x and rule handle 0x%x\n", tbl_hdl, rule_hdl);
+
+  return ipa_nati_query_timestamp(tbl_hdl, rule_hdl, time_stamp);
+}
+
+