451 lines
15 KiB
C
451 lines
15 KiB
C
|
/*******************************************************************************
|
||
|
|
Copyright (C) Marvell International Ltd. and its affiliates
|
||
|
|
|
||
|
|
This software file (the "File") is owned and distributed by Marvell
|
||
|
|
International Ltd. and/or its affiliates ("Marvell") under the following
|
||
|
|
alternative licensing terms. Once you have made an election to distribute the
|
||
|
|
File under one of the following license alternatives, please (i) delete this
|
||
|
|
introductory statement regarding license alternatives, (ii) delete the two
|
||
|
|
license alternatives that you have not elected to use and (iii) preserve the
|
||
|
|
Marvell copyright notice above.
|
||
|
|
|
||
|
|
********************************************************************************
|
||
|
|
Marvell Commercial License Option
|
||
|
|
|
||
|
|
If you received this File from Marvell and you have entered into a commercial
|
||
|
|
license agreement (a "Commercial License") with Marvell, the File is licensed
|
||
|
|
to you under the terms of the applicable Commercial License.
|
||
|
|
|
||
|
|
********************************************************************************
|
||
|
|
Marvell GPL License Option
|
||
|
|
|
||
|
|
If you received this File from Marvell, you may opt to use, redistribute and/or
|
||
|
|
modify this File in accordance with the terms and conditions of the General
|
||
|
|
Public License Version 2, June 1991 (the "GPL License"), a copy of which is
|
||
|
|
available along with the File in the license.txt file or by writing to the Free
|
||
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or
|
||
|
|
on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
|
||
|
|
|
||
|
|
THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
|
||
|
|
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
|
||
|
|
DISCLAIMED. The GPL License provides additional details about this warranty
|
||
|
|
disclaimer.
|
||
|
|
********************************************************************************
|
||
|
|
Marvell BSD License Option
|
||
|
|
|
||
|
|
If you received this File from Marvell, you may opt to use, redistribute and/or
|
||
|
|
modify this File under the following licensing terms.
|
||
|
|
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 Marvell 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 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.
|
||
|
|
|
||
|
|
*******************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
/* includes */
|
||
|
|
#include "mvTypes.h"
|
||
|
|
#include "mvOs.h"
|
||
|
|
#include "mvStack.h"
|
||
|
|
#include "mvDebug.h"
|
||
|
|
#include "eth/nfp/mvNfp.h"
|
||
|
|
#include "eth/mvEth.h"
|
||
|
|
|
||
|
|
|
||
|
|
struct natRuleHashBucket *natRuleDb;
|
||
|
|
MV_U32 natRuleDbSize;
|
||
|
|
|
||
|
|
MV_U32 natRuleUpdateCount = 0;
|
||
|
|
MV_U32 natRuleSetCount = 0;
|
||
|
|
MV_U32 natRuleDeleteCount = 0;
|
||
|
|
|
||
|
|
/* Initialize NFP NAT Rule Database (SNAT + DNAT table) */
|
||
|
|
MV_STATUS mvFpNatDbInit(MV_U32 dbSize)
|
||
|
|
{
|
||
|
|
natRuleDb = (struct natRuleHashBucket *)mvOsMalloc(sizeof(struct natRuleHashBucket)*dbSize);
|
||
|
|
if (natRuleDb == NULL) {
|
||
|
|
mvOsPrintf("NFP NAT Rule DB: Not Enough Memory\n");
|
||
|
|
return MV_NO_RESOURCE;
|
||
|
|
}
|
||
|
|
natRuleDbSize = dbSize;
|
||
|
|
memset(natRuleDb, 0, sizeof(struct natRuleHashBucket)*natRuleDbSize);
|
||
|
|
|
||
|
|
natRuleSetCount = natRuleDeleteCount = natRuleUpdateCount = 0;
|
||
|
|
|
||
|
|
mvOsPrintf("mvFpNatDb (%p): %d entries, %d bytes\n",
|
||
|
|
natRuleDb, natRuleDbSize, sizeof(struct natRuleHashBucket)*natRuleDbSize);
|
||
|
|
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Clear NFP NAT Rule Database (SNAT + DNAT table) */
|
||
|
|
MV_STATUS mvFpNatDbClear(void)
|
||
|
|
{
|
||
|
|
MV_U32 i = 0;
|
||
|
|
MV_FP_NAT_RULE *currRule;
|
||
|
|
MV_FP_NAT_RULE *tmpRule;
|
||
|
|
|
||
|
|
if (natRuleDb == NULL)
|
||
|
|
return MV_NOT_INITIALIZED;
|
||
|
|
|
||
|
|
for (i = 0; i < natRuleDbSize; i++) {
|
||
|
|
currRule = natRuleDb[i].natRuleChain;
|
||
|
|
while (currRule != NULL) {
|
||
|
|
tmpRule = currRule;
|
||
|
|
currRule = currRule->next;
|
||
|
|
mvOsFree(tmpRule);
|
||
|
|
}
|
||
|
|
natRuleDb[i].natRuleChain = NULL;
|
||
|
|
}
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Free NAT Database memory */
|
||
|
|
void mvFpNatDbDestroy(void)
|
||
|
|
{
|
||
|
|
if (natRuleDb != NULL)
|
||
|
|
mvOsFree(natRuleDb);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void mvFpNatRuleUpdate(MV_FP_NAT_RULE *dstRule, const MV_FP_NAT_RULE *srcRule)
|
||
|
|
{
|
||
|
|
dstRule->flags = srcRule->flags;
|
||
|
|
dstRule->newIp = srcRule->newIp;
|
||
|
|
dstRule->newPort = srcRule->newPort;
|
||
|
|
dstRule->new_count = srcRule->new_count;
|
||
|
|
dstRule->old_count = srcRule->old_count;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set a NAT rule: create a new rule or update an existing rule in the SNAT + DNAT table */
|
||
|
|
MV_STATUS mvFpNatRuleSet(MV_FP_NAT_RULE *pSetRule)
|
||
|
|
{
|
||
|
|
MV_U32 hash, hash_tr;
|
||
|
|
MV_FP_NAT_RULE *pNatRule, *pNewRule;
|
||
|
|
|
||
|
|
hash = mv_jhash_3words(pSetRule->dstIp, pSetRule->srcIp,
|
||
|
|
(MV_U32)((pSetRule->dstPort << 16) | pSetRule->srcPort),
|
||
|
|
(MV_U32)((fp_ip_jhash_iv << 8) | pSetRule->proto));
|
||
|
|
hash_tr = hash & (natRuleDbSize - 1);
|
||
|
|
pNatRule = natRuleDb[hash_tr].natRuleChain;
|
||
|
|
|
||
|
|
while(pNatRule)
|
||
|
|
{
|
||
|
|
/* look for a matching rule */
|
||
|
|
if( (pNatRule->dstIp == pSetRule->dstIp) &&
|
||
|
|
(pNatRule->srcIp == pSetRule->srcIp) &&
|
||
|
|
(pNatRule->proto == pSetRule->proto) &&
|
||
|
|
(pNatRule->dstPort == pSetRule->dstPort) &&
|
||
|
|
(pNatRule->srcPort == pSetRule->srcPort) )
|
||
|
|
{
|
||
|
|
/* update rule */
|
||
|
|
mvFpNatRuleUpdate(pNatRule, pSetRule);
|
||
|
|
natRuleUpdateCount++;
|
||
|
|
|
||
|
|
#ifdef MV_FP_DEBUG
|
||
|
|
mvOsPrintf("UpdNAT_%03u: DIP=0x%08x, SIP=0x%08x, proto=%d, DPort=%d, SPort=%d, hash=0x%04x, flags=0x%02x\n",
|
||
|
|
natRuleUpdateCount, pNatRule->dstIp, pNatRule->srcIp, pNatRule->proto,
|
||
|
|
MV_16BIT_BE(pNatRule->dstPort), MV_16BIT_BE(pNatRule->srcPort), hash_tr, pNatRule->flags);
|
||
|
|
#endif
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
pNatRule = pNatRule->next;
|
||
|
|
}
|
||
|
|
/* Allocate new entry */
|
||
|
|
pNewRule = mvOsMalloc(sizeof(MV_FP_NAT_RULE));
|
||
|
|
if(pNewRule == NULL)
|
||
|
|
{
|
||
|
|
mvOsPrintf("mvFpNatRuleSet: Can't allocate new rule\n");
|
||
|
|
return MV_FAIL;
|
||
|
|
}
|
||
|
|
|
||
|
|
memcpy(pNewRule, pSetRule, sizeof(*pNewRule));
|
||
|
|
pNewRule->next = NULL;
|
||
|
|
|
||
|
|
if(natRuleDb[hash_tr].natRuleChain == NULL)
|
||
|
|
{
|
||
|
|
natRuleDb[hash_tr].natRuleChain = pNewRule;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pNatRule = natRuleDb[hash_tr].natRuleChain;
|
||
|
|
|
||
|
|
while (pNatRule->next != NULL)
|
||
|
|
pNatRule = pNatRule->next;
|
||
|
|
|
||
|
|
pNatRule->next = pNewRule;
|
||
|
|
}
|
||
|
|
natRuleSetCount++;
|
||
|
|
|
||
|
|
#ifdef MV_FP_DEBUG
|
||
|
|
mvOsPrintf("SetNAT_%03u: DIP=0x%08x, SIP=0x%08x, proto=%d, DPort=%d, SPort=%d, hash=0x%04x, flags=0x%02x\n",
|
||
|
|
natRuleSetCount, pNewRule->dstIp, pNewRule->srcIp, pNewRule->proto,
|
||
|
|
MV_16BIT_BE(pNewRule->dstPort), MV_16BIT_BE(pNewRule->srcPort), hash_tr, pNewRule->flags);
|
||
|
|
#endif
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Delete a specified NAT rule from the SNAT + DNAT table */
|
||
|
|
MV_STATUS mvFpNatRuleDelete(MV_FP_NAT_RULE *natRule)
|
||
|
|
{
|
||
|
|
MV_U32 hash, hash_tr;
|
||
|
|
MV_FP_NAT_RULE *currRule, *prevRule;
|
||
|
|
|
||
|
|
natRuleDeleteCount++;
|
||
|
|
|
||
|
|
hash = mv_jhash_3words(natRule->dstIp, natRule->srcIp,
|
||
|
|
(MV_U32)((natRule->dstPort << 16) | natRule->srcPort),
|
||
|
|
(MV_U32)((fp_ip_jhash_iv << 8) | natRule->proto));
|
||
|
|
hash_tr = hash & (natRuleDbSize - 1);
|
||
|
|
|
||
|
|
prevRule = NULL;
|
||
|
|
for (currRule = natRuleDb[hash_tr].natRuleChain;
|
||
|
|
currRule != NULL;
|
||
|
|
prevRule = currRule, currRule = currRule->next)
|
||
|
|
{
|
||
|
|
if (currRule->srcIp == natRule->srcIp &&
|
||
|
|
currRule->dstIp == natRule->dstIp &&
|
||
|
|
currRule->srcPort == natRule->srcPort &&
|
||
|
|
currRule->dstPort == natRule->dstPort &&
|
||
|
|
currRule->proto == natRule->proto )
|
||
|
|
{
|
||
|
|
if (prevRule == NULL)
|
||
|
|
natRuleDb[hash_tr].natRuleChain = currRule->next;
|
||
|
|
else
|
||
|
|
prevRule->next = currRule->next;
|
||
|
|
|
||
|
|
#ifdef MV_FP_DEBUG
|
||
|
|
mvOsPrintf("DelNAT_%03u: DIP=0x%08x, SIP=0x%08x, proto=%d, DPort=%d, SPort=%d, hash=0x%04x\n",
|
||
|
|
natRuleDeleteCount, currRule->dstIp, currRule->srcIp, currRule->proto,
|
||
|
|
MV_16BIT_BE(currRule->dstPort), MV_16BIT_BE(currRule->srcPort), hash_tr);
|
||
|
|
#endif
|
||
|
|
mvOsFree(currRule);
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return MV_NOT_FOUND;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check that protocol supported for FP NAT and extract srcPort and dstPort
|
||
|
|
* (or their equivalents) from the packet.
|
||
|
|
*/
|
||
|
|
MV_U8 mvFpNatPortsGet(MV_IP_HEADER* pIpHdr, MV_U16* pDstPort, MV_U16* pSrcPort)
|
||
|
|
{
|
||
|
|
MV_U8 proto = pIpHdr->protocol;
|
||
|
|
MV_UDP_HEADER *pUdpHdr;
|
||
|
|
MV_TCP_HEADER *pTcpHdr;
|
||
|
|
MV_ICMP_ECHO_HEADER *pIcmpHdr;
|
||
|
|
|
||
|
|
switch(proto)
|
||
|
|
{
|
||
|
|
case MV_IP_PROTO_TCP:
|
||
|
|
pTcpHdr = (MV_TCP_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
*pDstPort = pTcpHdr->dest;
|
||
|
|
*pSrcPort = pTcpHdr->source;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_UDP:
|
||
|
|
pUdpHdr = (MV_UDP_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
*pDstPort = pUdpHdr->dest;
|
||
|
|
*pSrcPort = pUdpHdr->source;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_ICMP:
|
||
|
|
pIcmpHdr = (MV_ICMP_ECHO_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
if( (pIcmpHdr->type == MV_ICMP_ECHO) || (pIcmpHdr->type == MV_ICMP_ECHOREPLY) )
|
||
|
|
{
|
||
|
|
*pDstPort = (pIcmpHdr->code << 8) | (pIcmpHdr->type);
|
||
|
|
*pSrcPort = pIcmpHdr->id;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* Do NAT for IP + protocol only (without ports) */
|
||
|
|
*pDstPort = 0;
|
||
|
|
*pSrcPort = 0;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_ZERO_HOP:
|
||
|
|
/* Do NAT for IP + protocol only (without ports) */
|
||
|
|
*pDstPort = 0;
|
||
|
|
*pSrcPort = 0;
|
||
|
|
break;
|
||
|
|
|
||
|
|
/* Other protocols supporting NAT only without ports
|
||
|
|
* case ???????:
|
||
|
|
* case ???????:
|
||
|
|
* *pDstPort = 0;
|
||
|
|
* *pSrcPort = 0;
|
||
|
|
* break
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* Skip NAT processing at all */
|
||
|
|
proto = MV_IP_PROTO_NULL;
|
||
|
|
}
|
||
|
|
return proto;
|
||
|
|
}
|
||
|
|
|
||
|
|
int mvFpNatPktUpdate(MV_IP_HEADER* pIpHdr, MV_FP_NAT_RULE* pDnatRule, MV_FP_NAT_RULE* pSnatRule)
|
||
|
|
{
|
||
|
|
MV_UDP_HEADER *pUdpHdr;
|
||
|
|
MV_TCP_HEADER *pTcpHdr;
|
||
|
|
MV_ICMP_ECHO_HEADER *pIcmpHdr;
|
||
|
|
int hdr_size = 0;
|
||
|
|
MV_U16 *pDstPort=NULL, *pSrcPort=NULL;
|
||
|
|
|
||
|
|
switch(pIpHdr->protocol)
|
||
|
|
{
|
||
|
|
case MV_IP_PROTO_TCP:
|
||
|
|
pTcpHdr = (MV_TCP_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
pDstPort = &pTcpHdr->dest;
|
||
|
|
pSrcPort = &pTcpHdr->source;
|
||
|
|
hdr_size = sizeof(MV_TCP_HEADER);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_UDP:
|
||
|
|
pUdpHdr = (MV_UDP_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
pDstPort = &pUdpHdr->dest;
|
||
|
|
pSrcPort = &pUdpHdr->source;
|
||
|
|
hdr_size = sizeof(MV_UDP_HEADER);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_ICMP:
|
||
|
|
pIcmpHdr = (MV_ICMP_ECHO_HEADER*)((unsigned)pIpHdr + sizeof(MV_IP_HEADER));
|
||
|
|
if( (pIcmpHdr->type == MV_ICMP_ECHO) || (pIcmpHdr->type == MV_ICMP_ECHOREPLY) )
|
||
|
|
{
|
||
|
|
pDstPort = &pIcmpHdr->id;
|
||
|
|
pSrcPort = &pIcmpHdr->id;
|
||
|
|
hdr_size = sizeof(MV_ICMP_ECHO_HEADER);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
mvOsPrintf("Wrong ICMP type: 0x%x\n", pIcmpHdr->type & 0xFF);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MV_IP_PROTO_ZERO_HOP:
|
||
|
|
/* Do nothing - only IP addresses are updated for this protocol */
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
mvOsPrintf("Unexpected IP protocol: 0x%x\n",
|
||
|
|
pIpHdr->protocol);
|
||
|
|
}
|
||
|
|
if(pDnatRule != NULL)
|
||
|
|
{
|
||
|
|
if(pDnatRule->flags & MV_FP_DIP_CMD_MAP)
|
||
|
|
pIpHdr->dstIP = pDnatRule->newIp;
|
||
|
|
if( (pDnatRule->flags & MV_FP_DPORT_CMD_MAP) &&
|
||
|
|
(pDstPort != NULL) )
|
||
|
|
*pDstPort = pDnatRule->newPort;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(pSnatRule != NULL)
|
||
|
|
{
|
||
|
|
if(pSnatRule->flags & MV_FP_SIP_CMD_MAP)
|
||
|
|
pIpHdr->srcIP = pSnatRule->newIp;
|
||
|
|
|
||
|
|
if( (pSnatRule->flags & MV_FP_SPORT_CMD_MAP) &&
|
||
|
|
(pSrcPort != NULL) )
|
||
|
|
*pSrcPort = pSnatRule->newPort;
|
||
|
|
}
|
||
|
|
return hdr_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Print a NFP NAT Rule */
|
||
|
|
void mvFpNatRulePrint(const MV_FP_NAT_RULE *rule)
|
||
|
|
{
|
||
|
|
/* Note: some of the fields in the NAT rule may contain invalid values */
|
||
|
|
mvOsPrintf("Original packet: ");
|
||
|
|
mvOsPrintf("SIP=");
|
||
|
|
mvDebugPrintIpAddr(MV_32BIT_BE(rule->srcIp)),
|
||
|
|
mvOsPrintf(", DIP=");
|
||
|
|
mvDebugPrintIpAddr(MV_32BIT_BE(rule->dstIp)),
|
||
|
|
mvOsPrintf(", SPort=%d", MV_16BIT_BE(rule->srcPort));
|
||
|
|
mvOsPrintf(", DPort=%d", MV_16BIT_BE(rule->dstPort));
|
||
|
|
mvOsPrintf("\nNAT Info: ");
|
||
|
|
mvOsPrintf("count=%u, flags=0x%x", rule->new_count, rule->flags);
|
||
|
|
mvOsPrintf(", newIP=");
|
||
|
|
mvDebugPrintIpAddr(MV_32BIT_BE(rule->newIp));
|
||
|
|
mvOsPrintf(", newPort=%d", MV_16BIT_BE(rule->newPort));
|
||
|
|
mvOsPrintf("\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Print NFP NAT Rule Database (SNAT + DNAT table) */
|
||
|
|
MV_STATUS mvFpNatDbPrint(void)
|
||
|
|
{
|
||
|
|
MV_U32 count, i = 0;
|
||
|
|
MV_FP_NAT_RULE *currRule;
|
||
|
|
|
||
|
|
mvOsPrintf("\nPrinting NFP NAT Rule Database: \n");
|
||
|
|
count = 0;
|
||
|
|
for (i=0; i<natRuleDbSize; i++)
|
||
|
|
{
|
||
|
|
currRule = natRuleDb[i].natRuleChain;
|
||
|
|
|
||
|
|
if (currRule != NULL)
|
||
|
|
mvOsPrintf("\n%03u: NAT DB hash=0x%x\n", count, i);
|
||
|
|
|
||
|
|
while (currRule != NULL)
|
||
|
|
{
|
||
|
|
if( (currRule->flags != MV_FP_NULL_BINDING) || (currRule->new_count > 0) )
|
||
|
|
{
|
||
|
|
mvOsPrintf("%03u: Rule=%p, Next=%p\n", count, currRule, currRule->next);
|
||
|
|
mvFpNatRulePrint(currRule);
|
||
|
|
}
|
||
|
|
currRule = currRule->next;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return MV_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Get the count value for a NAT rule */
|
||
|
|
MV_U32 mvFpNatCountGet(MV_U32 srcIp, MV_U32 dstIp, MV_U16 srcPort, MV_U16 dstPort, MV_U8 proto)
|
||
|
|
{
|
||
|
|
MV_U32 hash, hash_tr;
|
||
|
|
MV_FP_NAT_RULE *pNatRule;
|
||
|
|
|
||
|
|
hash = mv_jhash_3words(dstIp, srcIp, (MV_U32)((dstPort << 16) | srcPort),
|
||
|
|
(MV_U32)((fp_ip_jhash_iv << 8) | proto));
|
||
|
|
hash_tr = hash & (natRuleDbSize - 1);
|
||
|
|
pNatRule = natRuleDb[hash_tr].natRuleChain;
|
||
|
|
|
||
|
|
while(pNatRule)
|
||
|
|
{
|
||
|
|
/* look for a matching rule */
|
||
|
|
if( (pNatRule->dstIp == dstIp) &&
|
||
|
|
(pNatRule->srcIp == srcIp) &&
|
||
|
|
(pNatRule->proto == proto) &&
|
||
|
|
(pNatRule->dstPort == dstPort) &&
|
||
|
|
(pNatRule->srcPort == srcPort) )
|
||
|
|
{
|
||
|
|
return pNatRule->new_count;
|
||
|
|
}
|
||
|
|
pNatRule = pNatRule->next;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|