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neelimap
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/*
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******************************************************************************
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* INTERPEAK API HEADER FILE
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*
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* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipnet_vrrpd.h,v $ $Revision: 1.1.2.5 $
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* $Source: /home/interpeak/CVSRoot/ipnet2/include/ipnet_vrrpd.h,v $
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* $Author: jren $ $Date: 2015-02-28 08:46:04 $
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* $State: Exp $ $Locker: $
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*
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* INTERPEAK_COPYRIGHT_STRING
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* Design and implementation by Kenneth Jonsson <kenneth@interpeak.se>
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******************************************************************************
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*/
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#ifndef IPNET_VRRPD_H
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#define IPNET_VRRPD_H
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/*
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****************************************************************************
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* 1 DESCRIPTION
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****************************************************************************
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* Implementation of RFC5798 - Virtual Router Redundancy Protocol (VRRP)
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* This file contains helper functions used within the stack.
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*/
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/*
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****************************************************************************
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* 2 CONFIGURATION
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****************************************************************************
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*/
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#include "ipnet_config.h"
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/*
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****************************************************************************
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* 3 INCLUDE FILES
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****************************************************************************
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*/
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#include <ipcom_cstyle.h>
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#include <ipcom_type.h>
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#include <ipcom_tmo2.h>
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#include <ipcom_sock.h>
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#include <ipcom_hash.h>
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#include <ipcom_pqueue.h>
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#ifdef IPCOM_USE_INET6
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#include "ipcom_sock6.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef IPNET_USE_VRRP
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/*
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****************************************************************************
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* 4 DEFINES
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****************************************************************************
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*/
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#define IPNET_VRRP_BUF_SIZE 1000
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/* Authentication mechanisms */
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#define IPNET_VRRP_AUTH_TYPE_0 0
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#define IPNET_VRRP_AUTH_TYPE_1 1 /* simple text password rfc2338#section-5.3.6 */
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#define IPNET_VRRP_AUTH_DATA_SIZE 8
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/* VRRP states */
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#define IPNET_VRRPD_STATE_UNINITIALIZED 0
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#define IPNET_VRRPD_STATE_MASTER 1
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#define IPNET_VRRPD_STATE_BACKUP 2
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/* VRRP group control cmd */
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#define IPNET_VRRPD_STOP_VRRP_GROUP 1
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#define IPNET_VRRPD_START_VRRP_GROUP 2
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#define IPNET_VRRPD_RESTART_VRRP_GROUP 3
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/*
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****************************************************************************
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* 5 TYPES
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****************************************************************************
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*/
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/* VRRP daemon info */
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typedef struct Ipnet_vrrpd_struct
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{
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struct Ipnet_vrrpd_struct *next;
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int vr;
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int ipd;
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int version;
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int sock;
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int sock6;
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int control_sock;
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Ipcom_hash *conf_head;
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Ipcom_pqueue *tmo_head;
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Ipcom_tmo2 tmo; /* tmo to handle ipc message */
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char buf[IPNET_VRRP_BUF_SIZE];
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}
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Ipnet_vrrpd_t;
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/* Forward declaration */
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struct Ipnet_vrrpd_conf_struct;
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typedef void (*Ipnet_vrrpd_get_virtual_link_addr)
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(struct Ipnet_vrrpd_conf_struct *conf, struct Ip_sockaddr_dl *dl);
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/* Configuration parameters for one interface/VRID pair */
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typedef struct Ipnet_vrrpd_conf_struct
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{
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Ipnet_vrrpd_t *v; /* The virtual router daemon this entry is part of */
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Ip_sa_family_t sa_family; /* IP_AF_INET or IP_AF_INET6 */
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int sock_index; /* sock index for this interface, used in v->sock/sock6 */
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char ifname[IP_IFNAMSIZ]; /* Interface name */
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Ip_u32 ifindex; /* ifindex of this interface */
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Ip_u8 vrid; /* VRID 1-255 */
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Ip_u8 priority; /* Priority 1-254. If this host owns the address, we will set priority to be 255
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when sending advertisement during run-time. */
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Ip_u8 num_addresses; /* Number of elements in the 'addrs' array */
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Ip_u8 state; /* The current state (one for the IPNET_VRRPD_STATE_xxx) */
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Ip_u16 adv_interval; /* Interval between advertisements when running as master in centiseconds */
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Ip_u16 master_adv_Interval; /* Interval saved by virtual routers in the Backup state in centiseconds */
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Ipcom_tmo2 tmo; /* Handle to the current running timeout */
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Ip_bool preempt; /* IP_TRUE if we should go to backup state when a higher prio is seen */
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/*Ip_bool accept; Controls whether a virtual router in Master state will accept packets addressed to
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the address owner's IPvX address as its own if it is not the IPvX address owner.
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The default is False. Deployments that rely on, for example, pinging the address
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owner's IPvX address may wish to configure Accept_Mode to be True.
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Note: IPv6 Neighbor Solicitations and Neighbor Advertisements MUST NOT be
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dropped when Accept_Mode is False. */
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Ip_bool promisc; /* Promiscuous mode has been entered due to this virtual ID */
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Ipnet_vrrpd_get_virtual_link_addr get_virtual_link_addr;
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int auth_type;
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char auth_data[IPNET_VRRP_AUTH_DATA_SIZE];
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union {
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#ifdef IPCOM_USE_INET
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struct Ip_in_addr addrs[1]; /* Array of addresses associated with this interface/VRID */
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#endif
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#ifdef IPCOM_USE_INET6
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struct Ip_in6_addr ipv6addrs[1]; /* Array of IPv6 addresses associated with this interface/VRID */
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#endif
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}virtual_addrs;
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}
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Ipnet_vrrpd_conf_t;
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#define virtual_ipv4addrs virtual_addrs.addrs
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#define virtual_ipv6addrs virtual_addrs.ipv6addrs
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/*
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****************************************************************************
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* 6 FUNCTIONS
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****************************************************************************
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*/
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/*******************************************************************************
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*
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* ipnet_vrrpd_statechange_callback - The callback routine if the state of vrrp group is changed
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*
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* The callback routine if the state of vrrp group is changed.
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*
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* Parameters:
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* \is
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* \i <conf>
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* The pointer of a virtual router conf entry.
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* \i <state>
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* The state this virtual router should enter.
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* \ie
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*
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* RETURNS:
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*
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* ERRNO:
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*/
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IP_PUBLIC void ipnet_vrrpd_statechange_callback
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(
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Ipnet_vrrpd_conf_t *conf,
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Ip_u8 state
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);
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/*******************************************************************************
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*
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* ipnet_vrrpd_show - Show current vrrp daemon status
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*
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* This function shows current vrrp daemon status.
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*
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* Parameters:
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* \is
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* \ie
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*
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* RETURNS:
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*
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* ERRNO:
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*/
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IP_PUBLIC void ipnet_vrrpd_show
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(
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void
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);
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/*******************************************************************************
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*
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* ipnet_vrrpd_reconfigure_vrrp_group - reconfigure a VRRP group
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*
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* This function is used to reconfigure a VRRP group.
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*
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* Parameters:
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* \is
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* \i <cmd>
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* The reconfigure cmd. 1 for stop vrrp group, 2 for start vrrp group
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* and 3 for restart vrrp group.
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* \i <ifname>
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* The interface name to run VRRP protocol.
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* \i <vrid>
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* The vrid number(1-255), or 0 for all possible vrid groups.
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* \i <sa_family>
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* IP_AF_INET for ipv4 vrrp group or IP_AF_INET6 for ipv6 vrrp group,
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* or 0 for both.
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* \i <vr>
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* The virtual router number.
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* \ie
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*
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* RETURNS:
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* \is
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* \i IPCOM_SUCCESS
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* Reconfiguring vrrp group was done successfully.
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* \i IPCOM_ERR_FAILED
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* Reconfiguring vrrp group was done unsuccessfully.
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* \ie
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*
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* ERRNO:
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*/
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IP_PUBLIC Ip_err ipnet_vrrpd_reconfigure_vrrp_group
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(
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Ip_u8 cmd,
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char *ifname,
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Ip_u8 vrid,
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Ip_sa_family_t sa_family,
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int vr
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);
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#endif /* IPNET_USE_VRRP */
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#ifdef __cplusplus
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}
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#endif
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#endif
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/*
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****************************************************************************
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* END OF FILE
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****************************************************************************
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*/
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