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Diffstat (limited to 'ipanat/src/ipa_nat_drv.c')
| -rw-r--r-- | ipanat/src/ipa_nat_drv.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/ipanat/src/ipa_nat_drv.c b/ipanat/src/ipa_nat_drv.c new file mode 100644 index 0000000..68e2de8 --- /dev/null +++ b/ipanat/src/ipa_nat_drv.c @@ -0,0 +1,177 @@ +/* +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 -1; + } + + ret = ipa_nati_add_ipv4_tbl(public_ip_addr, + number_of_entries, + tbl_hdl); + if (ret != 0) + { + IPAERR("unable to add table \n"); + return -1; + } + 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 -1; + } + 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) +{ + + 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 -1; + } + IPADBG("Passed Table handle: 0x%x\n", tbl_hdl); + + *rule_hdl = ipa_nati_add_ipv4_rule(tbl_hdl, clnt_rule); + 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) +{ + + if (IPA_NAT_INVALID_NAT_ENTRY == tbl_hdl || + IPA_NAT_INVALID_NAT_ENTRY == rule_hdl) + { + IPAERR("invalide parameters\n"); + return -1; + } + IPADBG("Passed Table: 0x%x and rule handle 0x%x\n", tbl_hdl, rule_hdl); + + if (-1 == ipa_nati_del_ipv4_rule(tbl_hdl, rule_hdl)) + { + IPAERR("unable to delete rule from hw \n"); + return -1; + } + + 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 -1; + } + 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); +} + + |