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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <libilb.h>
#include "ilbadm.h"
/*
* For each iteration through the kernel table, ask for at most NUM_ENTRIES
* entries to be returned.
*/
#define NUM_ENTRIES 500
static void
print_nat_info(ilb_nat_info_t *info)
{
char *tmp;
ipaddr_t addr_v4;
char addr[INET6_ADDRSTRLEN];
if (info->nat_proto == IPPROTO_TCP)
tmp = "TCP";
else if (info->nat_proto == IPPROTO_UDP)
tmp = "UDP";
else
tmp = "Unknown";
(void) printf("%4s: ", tmp);
if (IN6_IS_ADDR_V4MAPPED(&info->nat_out_global)) {
IN6_V4MAPPED_TO_IPADDR(&info->nat_out_global, addr_v4);
(void) printf("%s.%d > ", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN), ntohs(info->nat_out_global_port));
IN6_V4MAPPED_TO_IPADDR(&info->nat_in_global, addr_v4);
(void) printf("%s.%d >>> ", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN), ntohs(info->nat_in_global_port));
IN6_V4MAPPED_TO_IPADDR(&info->nat_out_local, addr_v4);
(void) printf("%s.%d > ", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN), ntohs(info->nat_out_local_port));
IN6_V4MAPPED_TO_IPADDR(&info->nat_in_local, addr_v4);
(void) printf("%s.%d\n", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN), ntohs(info->nat_in_local_port));
} else {
(void) printf("%s.%d > ", inet_ntop(AF_INET6,
&info->nat_out_global, addr, INET6_ADDRSTRLEN),
ntohs(info->nat_out_global_port));
(void) printf("%s.%d >>> ", inet_ntop(AF_INET6,
&info->nat_in_global, addr, INET6_ADDRSTRLEN),
ntohs(info->nat_in_global_port));
(void) printf("%s.%d > ", inet_ntop(AF_INET6,
&info->nat_out_local, addr, INET6_ADDRSTRLEN),
ntohs(info->nat_out_local_port));
(void) printf("%s.%d\n", inet_ntop(AF_INET6,
&info->nat_in_local, addr, INET6_ADDRSTRLEN),
ntohs(info->nat_in_local_port));
}
}
static void
print_persist_info(ilb_persist_info_t *info)
{
char addr[INET6_ADDRSTRLEN];
(void) printf("%s: ", info->persist_rule_name);
if (IN6_IS_ADDR_V4MAPPED(&info->persist_req_addr)) {
ipaddr_t addr_v4;
IN6_V4MAPPED_TO_IPADDR(&info->persist_req_addr, addr_v4);
(void) printf("%s --> ", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN));
IN6_V4MAPPED_TO_IPADDR(&info->persist_srv_addr, addr_v4);
(void) printf("%s\n", inet_ntop(AF_INET, &addr_v4, addr,
INET6_ADDRSTRLEN));
} else {
(void) printf("%s --> ", inet_ntop(AF_INET6,
&info->persist_req_addr, addr, INET6_ADDRSTRLEN));
(void) printf("%s\n", inet_ntop(AF_INET6,
&info->persist_srv_addr, addr, INET6_ADDRSTRLEN));
}
}
/* Tell ilbadm_show_info() which table to show. */
enum which_tbl {
show_nat = 1,
show_persist
};
typedef union {
ilb_nat_info_t *nbuf;
ilb_persist_info_t *pbuf;
char *buf;
} show_buf_t;
static ilbadm_status_t
ilbadm_show_info(int argc, char *argv[], enum which_tbl tbl)
{
ilb_handle_t h = ILB_INVALID_HANDLE;
show_buf_t buf;
ilb_status_t rclib = ILB_STATUS_OK;
ilbadm_status_t rc = ILBADM_OK;
int32_t i, num_entries;
size_t num;
boolean_t end;
size_t entry_sz;
/*
* If the user does not specify a count, return the whole table.
* This requires setting the fourth param to ilb_show_nat/persist()
* end to B_FALSE. Otherwise, set end to B_TRUE;
*/
switch (argc) {
case 1:
num_entries = -1;
end = B_FALSE;
break;
case 2:
num_entries = atoi(argv[1]);
if (num_entries < 1) {
rc = ILBADM_EINVAL;
goto out;
}
end = B_TRUE;
break;
default:
rc = ILBADM_EINVAL;
goto out;
}
if (tbl == show_nat)
entry_sz = sizeof (ilb_nat_info_t);
else
entry_sz = sizeof (ilb_persist_info_t);
if ((buf.buf = malloc((num_entries > 0 ? num_entries : NUM_ENTRIES) *
entry_sz)) == NULL) {
rc = ILBADM_ENOMEM;
goto out;
}
rclib = ilb_open(&h);
if (rclib != ILB_STATUS_OK)
goto out;
do {
num = num_entries > 0 ? num_entries : NUM_ENTRIES;
bzero(buf.buf, num * entry_sz);
if (tbl == show_nat)
rclib = ilb_show_nat(h, buf.nbuf, &num, &end);
else
rclib = ilb_show_persist(h, buf.pbuf, &num, &end);
if (rclib != ILB_STATUS_OK)
break;
for (i = 0; i < num; i++) {
if (tbl == show_nat)
print_nat_info(&buf.nbuf[i]);
else
print_persist_info(&buf.pbuf[i]);
}
if (num_entries > 0) {
num_entries -= num;
if (num_entries <= 0)
break;
}
} while (!end);
free(buf.buf);
out:
if (h != ILB_INVALID_HANDLE)
(void) ilb_close(h);
if (rclib != ILB_STATUS_OK) {
ilbadm_err(ilb_errstr(rclib));
rc = ILBADM_LIBERR;
}
if ((rc != ILBADM_OK) && (rc != ILBADM_LIBERR))
ilbadm_err(ilbadm_errstr(rc));
return (rc);
}
ilbadm_status_t
ilbadm_show_nat(int argc, char *argv[])
{
return (ilbadm_show_info(argc, argv, show_nat));
}
ilbadm_status_t
ilbadm_show_persist(int argc, char *argv[])
{
return (ilbadm_show_info(argc, argv, show_persist));
}
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