target/linux/lantiq/files/include/linux/svip_nat_io.h

   1 /******************************************************************************
   2
   3                                Copyright (c) 2007
   4                             Infineon Technologies AG
   5                      Am Campeon 1-12; 81726 Munich, Germany
   6
   7   THE DELIVERY OF THIS SOFTWARE AS WELL AS THE HEREBY GRANTED NON-EXCLUSIVE,
   8   WORLDWIDE LICENSE TO USE, COPY, MODIFY, DISTRIBUTE AND SUBLICENSE THIS
   9   SOFTWARE IS FREE OF CHARGE.
  10
  11   THE LICENSED SOFTWARE IS PROVIDED "AS IS" AND INFINEON EXPRESSLY DISCLAIMS
  12   ALL REPRESENTATIONS AND WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING
  13   WITHOUT LIMITATION, WARRANTIES OR REPRESENTATIONS OF WORKMANSHIP,
  14   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, DURABILITY, THAT THE
  15   OPERATING OF THE LICENSED SOFTWARE WILL BE ERROR FREE OR FREE OF ANY THIRD
  16   PARTY CLAIMS, INCLUDING WITHOUT LIMITATION CLAIMS OF THIRD PARTY INTELLECTUAL
  17   PROPERTY INFRINGEMENT.
  18
  19   EXCEPT FOR ANY LIABILITY DUE TO WILFUL ACTS OR GROSS NEGLIGENCE AND EXCEPT
  20   FOR ANY PERSONAL INJURY INFINEON SHALL IN NO EVENT BE LIABLE FOR ANY CLAIM
  21   OR DAMAGES OF ANY KIND, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23   DEALINGS IN THE SOFTWARE.
  24  *******************************************************************************/
  25 #ifndef _SVIP_NAT_IO_H_
  26 #define _SVIP_NAT_IO_H_
  27
  28 #include <asm/ioctl.h>
  29
  30 #define SVIP_NAT_DEVICE_NAME            "svip_nat"
  31 #define PATH_SVIP_NAT_DEVICE_NAME       "/dev/"SVIP_NAT_DEVICE_NAME
  32
  33 #define MAJOR_NUM_SVIP_NAT              10
  34 #define MINOR_NUM_SVIP_NAT              120
  35
  36 /** maximum SVIP devices supported on a Line card system */
  37 #define SVIP_SYS_NUM                    12
  38
  39 /** maximum voice packet channels possible per SVIP device */
  40 #define SVIP_CODEC_NUM                  16
  41
  42 /** start UDP port number of the SVIP Linecard System */
  43 #define SVIP_UDP_FROM                   50000
  44
  45 /** @defgroup SVIP_NATAPI  SVIP Custom NAT ioctl interface.
  46   An ioctl interface is provided to add a rule into the SVIP NAT table and
  47   to respectively remove the rule form it. The ioctl interface is accessible
  48   using the fd issued upon opening the special device node /dev/svip_nat.
  49   @{  */
  50
  51 /** Used to add a new rule to the SVIP Custom NAT table. If a rule already
  52   exists for the target UDP port, that rule shall be overwritten.
  53
  54   \param SVIP_NAT_IO_Rule_t* The parameter points to a
  55   \ref SVIP_NAT_IO_Rule_t structure.
  56   */
  57 #define FIO_SVIP_NAT_RULE_ADD \
  58         _IOW(MAJOR_NUM_SVIP_NAT, 1, SVIP_NAT_IO_Rule_t)
  59
  60 /** Used to remove a rule from the SVIP Custom NAT table. No check is
  61   performed whether the rule already exists or not. The remove operation is
  62   performed as long as the target UDP port is within the defined port range.
  63
  64   \param SVIP_NAT_IO_Rule_t* The parameter points to a
  65   \ref SVIP_NAT_IO_Rule_t structure.
  66   */
  67 #define FIO_SVIP_NAT_RULE_REMOVE \
  68         _IOW(MAJOR_NUM_SVIP_NAT, 2, SVIP_NAT_IO_Rule_t)
  69
  70 /** Used to list all rules in the SVIP Custom NAT table.
  71
  72   \param <none>
  73   */
  74 #define FIO_SVIP_NAT_RULE_LIST \
  75         _IO(MAJOR_NUM_SVIP_NAT, 3)
  76
  77 /** IP address in network-byte order */
  78 typedef u32 SVIP_IP_ADDR_t;
  79 /** UDP port in network-byte order */
  80 typedef u16 SVIP_UDP_PORT_t;
  81
  82 #ifndef ETH_ALEN
  83 #define ETH_ALEN                        6 /* Octets in one ethernet address */
  84 #endif
  85
  86 /** NAT parameters part of the NAT table.
  87   These paramters are configurable through the NAT API. */
  88 typedef struct SVIP_NAT_IO_Rule
  89 {
  90         /** Remote peer, IP address */
  91         SVIP_IP_ADDR_t remIP;
  92         /** Remote peer, MAC address */
  93         u8 remMAC[ETH_ALEN];
  94         /** Target SVIP, IP address (local peer) */
  95         SVIP_IP_ADDR_t locIP;
  96         /** Target SVIP, MAC address */
  97         u8 locMAC[ETH_ALEN];
  98         /** Target SVIP, UDP port number */
  99         SVIP_UDP_PORT_t locUDP;
 100 } SVIP_NAT_IO_Rule_t;
 101
 102 /** @} */
 103 #endif