| /* |
| 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); |
| } |
| |
| |