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m241Neelima/components/ip_net2-6.9/ipmip6/include/private/ipmip6_pkt.h
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/* ipmip6_pkt.h - ipmip6_pkt.h */
/*
******************************************************************************
* HEADER FILE
*
* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip6_pkt.h,v $ $Revision: 1.14.10.1 $
* $Source: /home/interpeak/CVSRoot/ipmip6/include/private/ipmip6_pkt.h,v $
* $Author: jhorteli $ $Date: 2012-02-08 16:09:27 $
* $State: Exp $ $Locker: $
*
* INTERPEAK_COPYRIGHT_STRING
* Design and implementation by Joel Hortelius <joel.hortelius@interpeak.se>
******************************************************************************
*/
#ifndef IPMIP6_PKT_H
#define IPMIP6_PKT_H
/*
****************************************************************************
* 1 DESCRIPTION
****************************************************************************
*/
/*
DESCRIPTION
Basic IPMIP6 packet handling. Allows for assigning interfaces, addresses,
ancillary packet options. It also defines the basic IPMIP6 packet loop.
EXAMPLE
These examples extends the example functions originally defined
ipmip6_context.h, and shows how should create and manage the packet
context.
.CS
IP_GLOBAL void
ipmip6_reg_recv(struct Ipmip6_my_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_pktbuf_t *pbuf,
void *arg)
{
/@ Process the registration request @/
/@ Release the packet buffer @/
ipmip_pktbuf_release(&ctx->ipmip6.ipmip, proc, &pbuf->ipmip);
}
IP_GLOBAL void
ipmip6_adv_recv(struct Ipmip6_my_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_pktbuf_t *pbuf)
{
Ipcom_icmp_header *icmph = IPMIP_BUFFER_PTR(&pbuf->ipmip.packet);
/@ Process the ICMP packet @/
/@ Release the packet buffer @/
ipmip_pktbuf_release(&data->ipmip6.ipmip, proc, &pbuf->ipmip6.ipmip);
}
IP_GLOBAL Ip_bool
ipmip6_mh_dispatch(struct Ipmip6_my_context *ctx,
Ipmip_proc_t *proc,
Ipmip6_pktbuf_t *pbuf)
{
Ipmip6_mobility_header_t *hdr = IPMIP_BUFFER_PTR(&pbuf->ipmip.packet);
unsigned mlen = (unsigned) ((hdr->mh_len << 3) + 8);
/@ Process the MH message @/
ipmip_pktbuf_free(&ctx->ipmip6.ipmip, proc, &pbuf->ipmip6.ipmip);
return IP_TRUE;
}
IP_GLOBAL Ip_bool
ipmip6_icmp_dispatch(struct Ipmip6_my_context *ctx,
Ipmip_proc_t *proc,
Ipmip6_pktbuf_t *pbuf)
{
Ipmip6_pkt_icmp6_t *icmp = IPMIP_BUFFER_PTR(&pbuf->ipmip6.ipmip.packet);
/@ Process the ICMP message @/
ipmip_pktbuf_free(&ctx->ipmip6.ipmip, proc, &pbuf->ipmip6.ipmip);
return IP_TRUE;
}
static Ipmip6_pkt_context_dispatch_t ipmip6_dispatch_table =
{
(Ipmip6_pkt_dispatch_t)ipmip6_mh_dispatch,
(Ipmip6_pkt_dispatch_t)ipmip6_icmp_dispatch
};
Ipmip6_if_event_table_t ipmip6_ifevent_table =
{
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL,
(Ipmip6_if_event_t)IP_NULL
};
IP_GLOBAL Ipmip_pktbuf_t *
ipmip6_my_pktbuf_alloc(struct Ipmip6_my_context *ctx,
Ipmip_proc_t *proc,
Ip_size_t extra)
{
Ipmip6_pktbuf_t *pbuf;
IPMIP_UNUSED_PARAMETER(ctx);
IPMIP_UNUSED_PARAMETER(proc);
pbuf = ipcom_calloc(1, sizeof(Ipmip6_pktbuf_t) + extra);
if (pbuf)
{
ipmip_buffer_init(&pbuf->mo_reply);
pbuf->ipmip.pktend = (void *) (pbuf + 1);
return &pbuf->ipmip;
}
return IP_NULL;
}
IP_GLOBAL void
ipmip6_my_pktbuf_free(struct Ipmip6_my_context *ctx,
Ipmip_proc_t *proc,
Ipmip6_pktbuf_t *pbuf)
{
ipcom_free(pbuf);
}
struct Ipmip6_my_context *my_init_func6(Ipmip_proc_t *proc)
{
/@ Allocate my context; indicate the size of my overloaded structure @/
struct Ipmip6_my_context *ctx = (struct Ipmip_my_context *)ipmip_context_alloc(proc, sizeof(*ctx), "mymip6", IPCOM_LOG_DEBUG2, 10);
/@ Initialize the MIP6 portion of the context @/
ipmip6_context_initialize(&ctx->ipmip6, proc, &ipmip6_ifevent_table);
/@ Create a packet context @/
ipmip6_pkt_context_create(&ctx->ipmip6,
proc,
&ipmip6_dispatch_table,
IPMIP6_DSMIP_UDP_PORT,
(Ipmip_pkt_buf_alloc_t)ipmip6_my_pktbuf_alloc,
(Ipmip_pkt_buf_free_t)ipmip6_my_pktbuf_free);
/@ Start the context @/
ipmip6_context_start(&ctx->ipmip6, proc);
}
.CE
*/
/*
****************************************************************************
* 2 CONFIGURATION
****************************************************************************
*/
/*
****************************************************************************
* 3 INCLUDE FILES
****************************************************************************
*/
#include <private/ipmip_pktbuf.h>
#include <private/ipmip6_address.h>
#include <private/ipmip6_mh_pkt.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
****************************************************************************
* 4 DEFINES
****************************************************************************
*/
#define IPMIP6_PKT_CLEN 128
#define IPMIP6_PKT_VLEN 512
#define IPMIP6_IPPROTO_MOBILE_HEADER 135
#define IPMIP6_IPPROTO_RTHEADER 43
#define IPMIP6_DSTOPT_HOME_ADDRESS 0xc9
/* Set address where the source and/or the destination might be on
a word boundary */
#define IPMIP6_IP6_SET_ADDR(dst, src) ipcom_memcpy(dst, src, sizeof(struct Ip_in6_addr))
#define IPMIP6_IP6_SCOPE_NODE_LOCAL 0x1 /* Node local scope */
#define IPMIP6_IP6_SCOPE_LINK_LOCAL 0x2 /* Link local scope */
#define IPMIP6_IP6_SCOPE_SITE_LOCAL 0x5 /* Site local scope */
#define IPMIP6_IP6_SCOPE_ORG_LOCAL 0x8 /* Orginazation local scope */
#define IPMIP6_IP6_SCOPE_GLOBAL 0xe /* Global scope */
#define IPMIP6_IP6_MC_SCOPE(mc_addr) (ip_ntohs((mc_addr)->in6.addr16[0]) & 0x000f)
/* Reserved address types */
#define IPMIP6_IP6_SET_SOLICITED_ADDR(dst, src) do { \
IP_SET_HTONL(&(dst)->in6.addr32[0], 0xff020000); \
IP_SET_HTONL(&(dst)->in6.addr32[1], 0x00000000); \
IP_SET_HTONL(&(dst)->in6.addr32[2], 0x00000001); \
(dst)->in6.addr8[12] = 0xff; \
(dst)->in6.addr8[13] = (src)->in6.addr8[13]; \
(dst)->in6.addr16[7] = (src)->in6.addr16[7]; \
} while(0)
#define IPMIP6_IP6_SET_ALL_NODES_ADDR(addr) do { \
IP_SET_HTONL(&(addr)->in6.addr32[0], 0xff020000); \
IP_SET_32ON16(&(addr)->in6.addr32[1], 0); \
IP_SET_32ON16(&(addr)->in6.addr32[2], 0); \
IP_SET_HTONL(&(addr)->in6.addr32[3], 0x00000001); \
} while(0)
#define IPMIP6_IP6_SET_ALL_ROUTERS_ADDR(addr) do { \
IP_SET_HTONL(&(addr)->in6.addr32[0], 0xff020000); \
IP_SET_32ON16(&(addr)->in6.addr32[1], 0); \
IP_SET_32ON16(&(addr)->in6.addr32[2], 0); \
IP_SET_HTONL(&(addr)->in6.addr32[3], 0x00000002); \
} while(0)
#define IPMIP6_IP6_IS_SCOPE_LINK_LOCAL(addr) \
(IP_IN6_IS_ADDR_LINK_LOCAL(addr) || \
(IP_IN6_IS_ADDR_MULTICAST(addr) && IPMIP6_IP6_MC_SCOPE(addr) == IPNET_IP6_SCOPE_LINK_LOCAL))
/* Unspecified address */
#define IPMIP6_IP6_IS_ADDR_UNSPECIFIED(addr) \
(IP_GET_32ON16(&(addr)->in6.addr32[3]) ==0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[2]) == 0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[1]) == 0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[0]) == 0x00000000)
/* Multicast address types */
#define IPMIP6_IP6_IS_ADDR_SOLICITED(addr) \
(IP_GET_32ON16(&(addr)->in6.addr32[0]) == ip_htonl(0xff020000) && \
IP_GET_32ON16(&(addr)->in6.addr32[1]) == 0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[2]) == ip_htonl(0x00000001) && \
(addr)->in6.addr8[12] == 0xff)
#define IPMIP6_IP6_IS_ADDR_ALL_NODES(addr) \
(IP_GET_32ON16(&(addr)->in6.addr32[3]) == ip_htonl(0x00000001) && \
IP_GET_32ON16(&(addr)->in6.addr32[2]) == 0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[1]) == 0x00000000 && \
IP_GET_32ON16(&(addr)->in6.addr32[0]) == ip_htonl(0xff020000))
/* Macro initializers for standard addresses */
#define IPMIP6_IN6ADDR_LINKLOCAL \
{{{ 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IPMIP6_IN6ADDR_SITELOCAL \
{{{ 0xfe, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IPMIP6_IN6ADDR_ALLSET \
{{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
#define IPMIP6_PKT_IN (1 << 0)
#define IPMIP6_PKT_OUT (1 << 0)
#define IPMIP6_PKT_ALL (IPMIP6_PKT_IN|IPMIP6_PKT_OUT)
/* Linklocal and sitelocal prefixes */
IP_EXTERN IP_CONST Ipmip6_address_t ipmip6_in6addr_linklocal;
IP_EXTERN IP_CONST Ipmip6_address_t ipmip6_in6addr_sitelocal;
IP_EXTERN IP_CONST Ipmip6_address_t ipmip6_in6addr_unspecified;
IP_EXTERN IP_CONST struct Ip_in6_addr ipmip6_in6addr_allmask;
/*
****************************************************************************
* 5 TYPES
****************************************************************************
*/
/* Forward declaration */
struct Ipmip6_pkt;
struct Ipmip6_if;
struct Ipmip6_if_router;
struct Ipmip6_context;
struct Ipmip_proc;
struct Ipmip6_pktbuf;
typedef Ip_bool (*Ipmip6_pkt_dispatch_t) (struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
struct Ipmip6_pktbuf *pbuf);
typedef struct Ipmip6_pkt_context_dispatch
{
Ipmip6_pkt_dispatch_t mh;
Ipmip6_pkt_dispatch_t icmp;
}
Ipmip6_pkt_context_dispatch_t;
typedef struct Ipmip6_pkt_context
{
/**/
Ip_fd fd_mh;
Ip_fd fd_icmp_in;
Ip_fd fd_icmp_out;
Ip_fd fd_udp_nat;
struct Ip_sockaddr_in6 s_udp_nat;
/* Wrappers for pktbuf */
Ipmip_pkt_buf_alloc_t bufalloc;
Ipmip_pkt_buf_free_t buffree;
Ipmip6_pkt_context_dispatch_t *dispatch;
struct Ipmip_proc *proc;
}
Ipmip6_pkt_context_t;
typedef struct Ipmip6_pktbuf_recvinfo
{
Ip_bool rthdr2;
Ip_u32 hoplimit;
struct Ip_in6_addr *home;
union Ip_sockaddr_union *encapsulation;
} Ipmip6_pktbuf_recvinfo_t;
typedef struct Ipmip6_pktbuf_sendinfo
{
struct Ip_in6_addr *rthdr2; /* Routing header type2 */
struct Ip_in6_addr *rthdr0; /* Routing header type0 */
Ip_u32 hoplimit; /* Hop limit */
Ip_u32 flags; /* Send flags */
struct Ip_in6_addr *nexthop; /* Nexthop */
struct Ip_in6_pktinfo *pktinfo; /* Addr or Index to be used */
} Ipmip6_pktbuf_sendinfo_t;
typedef void (*Ipmip6_pktbuf_finalize_t) (struct Ipmip6_context *ctx, struct Ipmip_proc *proc, struct Ipmip6_pktbuf *pbuf);
typedef struct Ipmip6_pktbuf
{
Ipmip_pktbuf_t ipmip;
Ipmip6_pktbuf_recvinfo_t recvinfo;
Ipmip6_pktbuf_sendinfo_t sendinfo;
Ipmip_buffer_t ancillary;
Ipmip_buffer_t dstopts;
Ipmip6_pktbuf_finalize_t finalize;
Ipmip6_mh_options_t mo;
}
Ipmip6_pktbuf_t;
/* Type/Length/Value configuration */
typedef struct Ipmip6_pkt_tlv_option
{
Ip_u8 type;
Ip_u8 alignment;
Ip_u8 constant;
}
Ipmip6_pkt_tlv_option_t;
#include <ipcom_align16.h>
typedef struct IP_PACKED1 Ipmip6_pkt_ext_hdr
{
/* Basic header option flags. */
Ip_u8 next_header;
Ip_u8 len;
} IP_PACKED2
Ipmip6_pkt_ext_hdr_t;
typedef struct IP_PACKED1 Ipmip6_pkt_dstopt_hdr
{
/* Basic Mobility option fields */
Ip_u8 option_type;
Ip_u8 option_length;
} IP_PACKED2
Ipmip6_pkt_dstopt_hdr_t;
typedef struct IP_PACKED1 Ipmip6_pkt_rthdr2_hdr
{
Ip_u8 rtype; /* Routing Type */
Ip_u8 segments; /* Segments left */
Ip_u32 reserved; /* Reserved */
} IP_PACKED2
Ipmip6_pkt_rthdr2_hdr_t;
typedef struct IP_PACKED1 Ipmip6_pkt_rthdr0_hdr
{
Ip_u8 rtype; /* Routing Type */
Ip_u8 segments; /* Segments left */
Ip_u32 reserved; /* Reserved */
} IP_PACKED2
Ipmip6_pkt_rthdr0_hdr_t;
typedef IP_PACKED1 struct Ipmip6_pkt_ip6_struct
{
Ip_u32 ver_class_flow; /* 4 bit version, 8 bit class, 20 bit flow. */
Ip_u16 plen; /* Payload length. */
Ip_u8 nxt; /* Next Header. */
Ip_u8 hlim; /* Hop limit. */
struct Ip_in6_addr src; /* IPv6 source address. */
struct Ip_in6_addr dst; /* IPv6 destination address. */
} IP_PACKED2
Imip6_pkt_ip6;
#include <ipcom_align16.h>
/*
****************************************************************************
* 6 FUNCTIONS
****************************************************************************
*/
/*******************************************************************************
*
* ipmip6_pkt_tlv_requirement - ipmip6_pkt_tlv_requirement
*
* Locate the correct TLV option requirement in the provided option list.
*
* Parameters:
* \is
* \i options
* Option list
* \i type
* The type we are looking for
* \ie
*
* RETURNS: The TLV requirements if found.
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip6_pkt_tlv_option_t *ipmip6_pkt_tlv_requirement
(
Ipmip6_pkt_tlv_option_t *options,
Ip_u8 type
);
/*******************************************************************************
*
* ipmip6_pkt_tlv_alignment - ipmip6_pkt_tlv_alignment
*
* Calculate alignment for a given option.
*
* Parameters:
* \is
* \i size
* The size
* \i req
* The TLV requirements
* \ie
*
* RETURNS: The alignment.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u8 ipmip6_pkt_tlv_alignment
(
Ip_u32 size,
Ipmip6_pkt_tlv_option_t *req
);
/*******************************************************************************
*
* ipmip6_pkt_dstopt_opt_add - ipmip6_pkt_dstopt_opt_add
*
* Add a destination option to the dstopt ancillary option list.
*
* Parameters:
* \is
* \i pkt
* The packet
* \i type
* The option type value
* \i len
* The option length
* \i data
* The option data
* \ie
*
* RETURNS: IP_TRUE on success.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_pkt_dstopt_opt_add
(
Ipmip6_pktbuf_t *pkt,
Ip_u8 type,
Ip_u8 len,
void* data
);
/*******************************************************************************
*
* ipmip6_pkt_nexthop_opt_add - ipmip6_pkt_nexthop_opt_add
*
* Add a nexthop ancillary data option
*
* Parameters:
* \is
* \i pkt
* The packet
* \i addr
* The nexthop
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_nexthop_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *addr
);
/*******************************************************************************
*
* ipmip6_pkt_rthdr0_opt_add - ipmip6_pkt_rthdr0_opt_add
*
* Add a routing header type 0 ancillary data option
*
* Parameters:
* \is
* \i pkt
* The packet
* \i addr
* The next hop
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_rthdr0_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *addr
);
/*******************************************************************************
*
* ipmip6_pkt_rthdr2_opt_add - ipmip6_pkt_rthdr2_opt_add
*
* Add a routing header type 2 ancillary data option
*
* Parameters:
* \is
* \i pkt
* The packet
* \i addr
* The next hop
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_rthdr2_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *addr
);
/*******************************************************************************
*
* ipmip6_pkt_pktinfo_src_opt_add - ipmip6_pkt_pktinfo_src_opt_add
*
* Specify what source address is to be used in this particular packet
*
* Parameters:
* \is
* \i pkt
* The packet
* \i addr
* The source address
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_pktinfo_src_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *addr
);
/*******************************************************************************
*
* ipmip6_pkt_pktinfo_if_opt_add - ipmip6_pkt_pktinfo_if_opt_add
*
* Specify what interface is to be used in this particular packet
*
* Parameters:
* \is
* \i pkt
* The packet
* \i ife
* The outgoing interface
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_pktinfo_if_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ipmip6_if *ife
);
/*******************************************************************************
*
* ipmip6_pkt_pktinfo_opt_add - ipmip6_pkt_pktinfo_opt_add
*
* Specify what interface and source address is to be used in this particular packet
*
* Parameters:
* \is
* \i pkt
* The packet
* \i ifp
* The outgoing interface
* \i addr
* The source address
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_pktinfo_opt_add
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *src,
struct Ipmip6_if *ifp
);
/*******************************************************************************
*
* ipmip6_pkt_route_via - ipmip6_pkt_route_via
*
* Force a packet to route via a specific router
*
* Parameters:
* \is
* \i pkt
* The packet
* \i nexthop
* The nexthop address
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_route_via
(
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *nexthop
);
/*******************************************************************************
*
* ipmip6_pkt_set_hoplimit - ipmip6_pkt_set_hoplimit
*
* Set the hoplimit for this particular packet.
*
* Parameters:
* \is
* \i pkt
* The packet
* \i value
* The hoplimit
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_set_hoplimit
(
Ipmip6_pktbuf_t *pkt,
Ip_u32 value
);
/*******************************************************************************
*
* ipmip6_pkt_set_noroute - ipmip6_pkt_set_noroute
*
* Indicate that the packet should be sent 'noroute'. That is,
* bypass the ordinary routing table.
*
* Parameters:
* \is
* \i pkt
* The packet
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_set_noroute
(
Ipmip6_pktbuf_t *pkt
);
/*******************************************************************************
*
* ipmip6_pkt_send - ipmip6_pkt_send
*
* Sends and frees the packet frame.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i fd
* The socket to send on,
* \i pkt
* The packet
* \i addr
* The destination address.
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip6_pkt_send
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ip_fd fd,
Ipmip6_pktbuf_t *pkt,
struct Ip_in6_addr *addr
);
/*******************************************************************************
*
* ipmip6_pkt_pad - ipmip6_pkt_pad
*
* Pad a packet to achieve alignment.
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer. See ipmip_buffer.h
* for more information regarding dynamic buffers and their capabilities.
* \i pads
* The number of pads
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u8 ipmip6_pkt_pad
(
Ipmip_buffer_t *buf,
Ip_u8 pads
);
/*******************************************************************************
*
* ipmip6_pkt_pad8 - ipmip6_pkt_pad8
*
* Pad a packet to achieve 8 byte alignment.
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer. See ipmip_buffer.h
* for more information regarding dynamic buffers and their capabilities.
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_pad8
(
Ipmip_buffer_t *buf
);
/*******************************************************************************
*
* ipmip6_pkt_context_create - ipmip6_pkt_context_create
*
* Create and initiate the packet context.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i dispatch
* The dispatch callback table for received frames
* \i udp_port
* The UDP port to listen to.
* \i bufalloc
* The packet buffer allocation routine.
* \i buffree
* The packet buffer free routine.
* \ie
*
* RETURNS: IP_TRUE on success.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_pkt_context_create
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_pkt_context_dispatch_t *dispatch,
Ip_u16 udp_port,
Ipmip_pkt_buf_alloc_t bufalloc,
Ipmip_pkt_buf_free_t buffree
);
/*******************************************************************************
*
* ipmip6_pkt_context_destroy - ipmip6_pkt_context_destroy
*
* Destroy the packet context.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_context_destroy
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc
);
/*******************************************************************************
*
* ipmip6_pkt_context_start - ipmip6_pkt_context_start
*
* Start the packet context.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_pkt_context_start
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc
);
/*******************************************************************************
*
* ipmip6_pkt_context_stop - ipmip6_pkt_context_stop
*
* Stop the packet context.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_pkt_context_stop
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc
);
#ifdef __cplusplus
}
#endif
#endif
/*
****************************************************************************
* END OF FILE
****************************************************************************
*/
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