freebsd-skq/sys/netgraph/ng_nat.h
Pedro F. Giffuni fe267a5590 sys: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:23:17 +00:00

218 lines
6.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#define NG_NAT_NODE_TYPE "nat"
#define NGM_NAT_COOKIE 1107718711
#define NG_NAT_HOOK_IN "in"
#define NG_NAT_HOOK_OUT "out"
/* Arguments for NGM_NAT_SET_MODE message */
struct ng_nat_mode {
uint32_t flags;
uint32_t mask;
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_MODE_INFO { \
{ "flags", &ng_parse_uint32_type }, \
{ "mask", &ng_parse_uint32_type }, \
{ NULL } \
}
#define NG_NAT_LOG 0x01
#define NG_NAT_DENY_INCOMING 0x02
#define NG_NAT_SAME_PORTS 0x04
#define NG_NAT_UNREGISTERED_ONLY 0x10
#define NG_NAT_RESET_ON_ADDR_CHANGE 0x20
#define NG_NAT_PROXY_ONLY 0x40
#define NG_NAT_REVERSE 0x80
#define NG_NAT_DESC_LENGTH 64
#define NG_NAT_REDIRPROTO_ADDR (IPPROTO_MAX + 3) /* LibAlias' LINK_ADDR, also unused in in.h */
/* Arguments for NGM_NAT_REDIRECT_PORT message */
struct ng_nat_redirect_port {
struct in_addr local_addr;
struct in_addr alias_addr;
struct in_addr remote_addr;
uint16_t local_port;
uint16_t alias_port;
uint16_t remote_port;
uint8_t proto;
char description[NG_NAT_DESC_LENGTH];
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_REDIRECT_PORT_TYPE_INFO(desctype) { \
{ "local_addr", &ng_parse_ipaddr_type }, \
{ "alias_addr", &ng_parse_ipaddr_type }, \
{ "remote_addr", &ng_parse_ipaddr_type }, \
{ "local_port", &ng_parse_uint16_type }, \
{ "alias_port", &ng_parse_uint16_type }, \
{ "remote_port", &ng_parse_uint16_type }, \
{ "proto", &ng_parse_uint8_type }, \
{ "description", (desctype) }, \
{ NULL } \
}
/* Arguments for NGM_NAT_REDIRECT_ADDR message */
struct ng_nat_redirect_addr {
struct in_addr local_addr;
struct in_addr alias_addr;
char description[NG_NAT_DESC_LENGTH];
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_REDIRECT_ADDR_TYPE_INFO(desctype) { \
{ "local_addr", &ng_parse_ipaddr_type }, \
{ "alias_addr", &ng_parse_ipaddr_type }, \
{ "description", (desctype) }, \
{ NULL } \
}
/* Arguments for NGM_NAT_REDIRECT_PROTO message */
struct ng_nat_redirect_proto {
struct in_addr local_addr;
struct in_addr alias_addr;
struct in_addr remote_addr;
uint8_t proto;
char description[NG_NAT_DESC_LENGTH];
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_REDIRECT_PROTO_TYPE_INFO(desctype) { \
{ "local_addr", &ng_parse_ipaddr_type }, \
{ "alias_addr", &ng_parse_ipaddr_type }, \
{ "remote_addr", &ng_parse_ipaddr_type }, \
{ "proto", &ng_parse_uint8_type }, \
{ "description", (desctype) }, \
{ NULL } \
}
/* Arguments for NGM_NAT_ADD_SERVER message */
struct ng_nat_add_server {
uint32_t id;
struct in_addr addr;
uint16_t port;
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_ADD_SERVER_TYPE_INFO { \
{ "id", &ng_parse_uint32_type }, \
{ "addr", &ng_parse_ipaddr_type }, \
{ "port", &ng_parse_uint16_type }, \
{ NULL } \
}
/* List entry of array returned in NGM_NAT_LIST_REDIRECTS message */
struct ng_nat_listrdrs_entry {
uint32_t id; /* Anything except zero */
struct in_addr local_addr;
struct in_addr alias_addr;
struct in_addr remote_addr;
uint16_t local_port;
uint16_t alias_port;
uint16_t remote_port;
uint16_t proto; /* Valid proto or NG_NAT_REDIRPROTO_ADDR */
uint16_t lsnat; /* LSNAT servers count */
char description[NG_NAT_DESC_LENGTH];
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_LISTRDRS_ENTRY_TYPE_INFO(desctype) { \
{ "id", &ng_parse_uint32_type }, \
{ "local_addr", &ng_parse_ipaddr_type }, \
{ "alias_addr", &ng_parse_ipaddr_type }, \
{ "remote_addr", &ng_parse_ipaddr_type }, \
{ "local_port", &ng_parse_uint16_type }, \
{ "alias_port", &ng_parse_uint16_type }, \
{ "remote_port", &ng_parse_uint16_type }, \
{ "proto", &ng_parse_uint16_type }, \
{ "lsnat", &ng_parse_uint16_type }, \
{ "description", (desctype) }, \
{ NULL } \
}
/* Structure returned by NGM_NAT_LIST_REDIRECTS */
struct ng_nat_list_redirects {
uint32_t total_count;
struct ng_nat_listrdrs_entry redirects[];
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_LIST_REDIRECTS_TYPE_INFO(redirtype) { \
{ "total_count", &ng_parse_uint32_type }, \
{ "redirects", (redirtype) }, \
{ NULL } \
}
/* Structure returned by NGM_NAT_LIBALIAS_INFO */
struct ng_nat_libalias_info {
uint32_t icmpLinkCount;
uint32_t udpLinkCount;
uint32_t tcpLinkCount;
uint32_t sctpLinkCount;
uint32_t pptpLinkCount;
uint32_t protoLinkCount;
uint32_t fragmentIdLinkCount;
uint32_t fragmentPtrLinkCount;
uint32_t sockCount;
};
/* Keep this in sync with the above structure definition */
#define NG_NAT_LIBALIAS_INFO { \
{ "icmpLinkCount", &ng_parse_uint32_type }, \
{ "udpLinkCount", &ng_parse_uint32_type }, \
{ "tcpLinkCount", &ng_parse_uint32_type }, \
{ "sctpLinkCount", &ng_parse_uint32_type }, \
{ "pptpLinkCount", &ng_parse_uint32_type }, \
{ "protoLinkCount", &ng_parse_uint32_type }, \
{ "fragmentIdLinkCount", &ng_parse_uint32_type }, \
{ "fragmentPtrLinkCount", &ng_parse_uint32_type }, \
{ "sockCount", &ng_parse_uint32_type }, \
{ NULL } \
}
enum {
NGM_NAT_SET_IPADDR = 1,
NGM_NAT_SET_MODE,
NGM_NAT_SET_TARGET,
NGM_NAT_REDIRECT_PORT,
NGM_NAT_REDIRECT_ADDR,
NGM_NAT_REDIRECT_PROTO,
NGM_NAT_REDIRECT_DYNAMIC,
NGM_NAT_REDIRECT_DELETE,
NGM_NAT_ADD_SERVER,
NGM_NAT_LIST_REDIRECTS,
NGM_NAT_PROXY_RULE,
NGM_NAT_LIBALIAS_INFO,
};