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m241Neelima/components/ip_net2-6.9/ipmip/include/private/ipmip_dhcp.h
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/* ipmip_dhcp.h - ipmip_dhcp.h */
/*
******************************************************************************
* HEADER FILE
*
* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip_dhcp.h,v $ $Revision: 1.8 $
* $Source: /home/interpeak/CVSRoot/ipmip/include/private/ipmip_dhcp.h,v $
* $Author: jhorteli $ $Date: 2010-12-07 09:55:01 $
* $State: Exp $ $Locker: $
*
* INTERPEAK_COPYRIGHT_STRING
* Design and implementation by Joel Hortelius <joel.hortelius@interpeak.se>
******************************************************************************
*/
#ifndef IPMIP_DHCP_H
#define IPMIP_DHCP_H
/*
****************************************************************************
* 1 DESCRIPTION
****************************************************************************
*/
/*
DESCRIPTION
DHCP proxy and server implementation used to integrate DHCP with various
MIP DHCP requirements.These routines allow for a DHCP proxy and/or server
to create, parse and act on DHCP messages sent by a DHCP server, relay or
client. Proxy Mobility, for example, uses DHCP heavily to configure nodes
on its domains.
EXAMPLE:
This example shows a bare bone DHCP context usage, from creating the
DHCP context registering a lease and sending a reply.
.CS
static int
ipmip_my_dhcp_server(int event,
struct Ipmip_my_context *ctx,
Ipmip_proc_t *proc,
struct Ipmip_my_entities *node,
Ipmip_pktbuf_t *pbuf)
{
/@ Did it invoce correctly? @/
if (event == IPMIP_TIMER_EVENT_RUN)
{
Ipmip_dhcp_hdr_t *pkt = (Ipmip_dhcp_hdr_t *)IPMIP_BUFFER_PTR(&pbuf->packet);
if (pkt->op == IPMIP_DHCP_OP_BOOTREQUEST)
{
Ip_u8 *opt;
/@ Check the giaddr and the relay agent option @/
if (IP_GET_32ON8(&pkt->giaddr) != 0 || ipmip_dhcp_option_buffer_find(&pbuf->packet, IPMIP_DHCP_OPTCODE_RELAY_AGENT_INFO) 1= IP_NULL)
{
/@ Relay packet, dont deal with this in this example @/
goto done_out;
}
/@ Must have the message type option @/
if ((opt = ipmip_dhcp_option_buffer_find(&pbuf->packet, IPMIP_DHCP_OPTCODE_DHCP_MESSAGE_TYPE)) == IP_NULL)
goto done_out;
else
{
Ipmip_pktbuf_t *rpkt = (Ipmip_pktbuf_t*)ipmip_pktbuf_alloc(&ctx->ipmip, proc, 512);
Ipmip_buffer_t *buf = &rpkt->packet;
Ip_u8 type;
Ip_u32 tmp32;
/@ Add the header of the request to the packet @/
ipmip_buffer_append(buf, pkt, sizeof(*pkt));
/@ Verify the message type @/
switch(opt[IPMIP_DHCP_OPT_DATA])
{
case IPMIP_DHCP_MSG_DISCOVER:
type = IPMIP_DHCP_MSG_OFFER;
break;
case IPMIP_DHCP_MSG_REQUEST:
{
Ip_u32 req_addr = 0;
/@ We dont really do everything according to spec; but this is merely an example after all @/
req_addr = ipmip_dhcp_option_buffer_find_ip(&pbuf->packet,
IPMIP_DHCP_OPTCODE_DHCP_REQUESTED_ADDRESS);
if (req_addr == 0)
req_addr = IP_GET_32ON8(&pkt->ciaddr);
if (req_addr != 0)
type = IPMIP_DHCP_MSG_ACK;
else
type = IPMIP_DHCP_MSG_NAK;
}
break;
case IPMIP_DHCP_MSG_DECLINE:
goto done_out;
case IPMIP_DHCP_MSG_RELEASE:
goto done_out;
case IPMIP_DHCP_MSG_INFORM:
type = IPMIP_DHCP_MSG_NAK;
break;
default:
goto done_out;
}
/@ Add DHCP message type @/
ipmip_dhcp_option_buffer_append_u8(buf, IPMIP_DHCP_OPTCODE_DHCP_MESSAGE_TYPE, type);
if (type != IPMIP_DHCP_MSG_NAK)
{
/@ Add lease time @/
ipmip_dhcp_option_buffer_append_u32(buf, IPMIP_DHCP_OPTCODE_DHCP_LEASE_TIME, 5);
/@ Add SUBNET option - Do a 24 but mask @/
tmp32 = 0;
ipmip_util_create_mask((Ip_u8 *)&tmp32, 24);
ipmip_dhcp_option_buffer_append_ip(buf, IPMIP_DHCP_OPTCODE_SUBNET_MASK, tmp32);
}
ipmip_dhcp_option_buffer_close(buf);
/@ Retrieve the buffer pointer to the DHCP packet header @/
pkt = (Ipmip_dhcp_hdr_t *)IPMIP_BUFFER_PTR(buf);
pkt->op = IPMIP_DHCP_OP_BOOTREPLY;
pkt->hops = 0;
/@ Unless its a NAK, set the yiaddr @/
if (type != IPMIP_DHCP_MSG_NAK)
IP_SET_32ON8(&pkt->yiaddr, node->my_ip_address);
/@ Do write the message @/
ipmip_dhcp_write_to_client(&ctx->ipmip, proc, rpkt, ctx->my_dhcp_server_address, node->iff, type == IPMIP_DHCP_MSG_NAK);
}
}
else
{
/@ BOOT REPLY @/
}
}
done_out:
ipmip_pktbuf_release(&ctx->ipmip6.ipmip, proc, &pbuf->ipmip6.ipmip);
return IPMIP_TIMER_RET_DONE;
}
static int my_mip_dhcp_handle(int event,
struct Ipmip_my_context *ctx,
Ipmip_proc_t *proc,
Ipmip_dhcp_node_t *dnode,
Ipmip_pktbuf_t *pbuf)
{
/@ Successful invocation? @/
if (event == IPMIP_TIMER_EVENT_RUN)
{
/@ Get the DHCP header @/
Ipmip_dhcp_hdr_t *pkt = (Ipmip_dhcp_hdr_t *)IPMIP_BUFFER_PTR(&pbuf->packet);
struct Ip_iovec naiv;
if (pkt->op == IPMIP_DHCP_OP_BOOTREQUEST)
{
const char *nai;
struct Ip_iovec vec;
/@ Retrieve the client ID @/
if (ipmip_dhcp_retrieve_client_id(&pbuf->packet, &vec) && ((Ip_u8 *)vec.iov_base)[0] == 0)
{
/@ Get the CLIENT ID, and make certain its terminated @/
nai = ipmip_ntop_strn(proc, &((char *)vec.iov_base)[1], vec.iov_len - 1);
naiv->iov_len = ipcom_strlen(nai);
naiv->iov_base = (void *)nai;
}
else
{
/@ MAC ADDRESS, we do not bother in this example with this. Only real CLIENT ID. @/
goto done_out;
}
}
/@ This function needs to lookup a node based on NAI and invoke the server function with it.
It is not implemented here however. Usually it would be done by creating a hash table
with the nodes name as key and add the appropriate locking mechanisms to it @/
my_dhcp_find_node_by_client_id(ctx, proc, &naiv, ipmip_my_dhcp_server, pbuf);
return IPMIP_TIMER_RET_DONE;
}
done_out:
ipmip_pktbuf_release(&ctx->ipmip4.ipmip, proc, &pbuf->ipmip4.ipmip);
return IPMIP_TIMER_RET_DONE;
}
void my_init_func(struct Ipmip_my_context *ctx, Ipmip_proc_t *proc, struct Ipmip_my_iff *iff, Ip_u32 server_addr)
{
/@ Create the DHCP context - Can be done during context initialization,
or later for example depending on configuration @/
/@ This context will create the required UDP sockets for retrieving and
sending DHCP datagrams @/
ipmip_dhcp_context_create(&ctx->ipmip, proc);
/@ Setup the DHCP callback structure, specify the interface we
are interested in receiving replies from and what callback to be invoked @/
cfg->my_dhcp.ifindex = iff->ipmip.ifindex;
cfg->my_dhcp.opaque = iff;
cfg->my_dhcp.lock = ctx->my_lock;
cfg->my_dhcp.process_func = (Ipmip_timer_func_t)my_mip_dhcp_handle;
cfg->my_dhcp_server_address = server_addr;
/@ Register the DHCP callback function @/
ipmip_dhcp_register(&ctx->ipmip, proc, &ctx->my_dhcp);
}
.CE
*/
/*
****************************************************************************
* 2 CONFIGURATION
****************************************************************************
*/
/*
****************************************************************************
* 3 INCLUDE FILES
****************************************************************************
*/
#include <private/ipmip_context.h>
#include <private/ipmip_timer.h>
#include <private/ipmip_inet.h>
#include <private/ipmip_rtab.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef IPMIP_USE_INET
/*
****************************************************************************
* 4 DEFINES
****************************************************************************
*/
#define IPMIP_DHCP_OP_BOOTREQUEST 1
#define IPMIP_DHCP_OP_BOOTREPLY 2
#define IPMIP_DHCP_MSG_DISCOVER 1
#define IPMIP_DHCP_MSG_OFFER 2
#define IPMIP_DHCP_MSG_REQUEST 3
#define IPMIP_DHCP_MSG_DECLINE 4
#define IPMIP_DHCP_MSG_ACK 5
#define IPMIP_DHCP_MSG_NAK 6
#define IPMIP_DHCP_MSG_RELEASE 7
#define IPMIP_DHCP_MSG_INFORM 8
#define IPMIP_DHCP_MSG_INFORM_ACK 0x15
#define IPMIP_DHCP_OPT_CODE (0)
#define IPMIP_DHCP_OPT_LEN (1)
#define IPMIP_DHCP_OPT_DATA (2)
#define IPMIP_DHCP_OPTCODE_PAD 0
#define IPMIP_DHCP_OPTCODE_END 255
#define IPMIP_DHCP_PKT_HDR_SNAME_LEN (64)
#define IPMIP_DHCP_PKT_HDR_FILE_LEN (128)
#define IPMIP_DHCP_OPTCODE_SUBNET_MASK 1
#define IPMIP_DHCP_OPTCODE_TIME_OFFSET 2
#define IPMIP_DHCP_OPTCODE_ROUTERS 3
#define IPMIP_DHCP_OPTCODE_TIME_SERVERS 4
#define IPMIP_DHCP_OPTCODE_NAME_SERVERS 5
#define IPMIP_DHCP_OPTCODE_DOMAIN_NAME_SERVERS 6
#define IPMIP_DHCP_OPTCODE_LOG_SERVERS 7
#define IPMIP_DHCP_OPTCODE_COOKIE_SERVERS 8
#define IPMIP_DHCP_OPTCODE_LPR_SERVERS 9
#define IPMIP_DHCP_OPTCODE_IMPRESS_SERVERS 10
#define IPMIP_DHCP_OPTCODE_RESOURCE_LOCATION_SERVERS 11
#define IPMIP_DHCP_OPTCODE_HOST_NAME 12
#define IPMIP_DHCP_OPTCODE_BOOT_SIZE 13
#define IPMIP_DHCP_OPTCODE_MERIT_DUMP 14
#define IPMIP_DHCP_OPTCODE_DOMAIN_NAME 15
#define IPMIP_DHCP_OPTCODE_SWAP_SERVER 16
#define IPMIP_DHCP_OPTCODE_ROOT_PATH 17
#define IPMIP_DHCP_OPTCODE_EXTENSIONS_PATH 18
#define IPMIP_DHCP_OPTCODE_IP_FORWARDING 19
#define IPMIP_DHCP_OPTCODE_NON_LOCAL_SOURCE_ROUTING 20
#define IPMIP_DHCP_OPTCODE_POLICY_FILTER 21
#define IPMIP_DHCP_OPTCODE_MAX_DGRAM_REASSEMBLY 22
#define IPMIP_DHCP_OPTCODE_DEFAULT_IP_TTL 23
#define IPMIP_DHCP_OPTCODE_PATH_MTU_AGING_TIMEOUT 24
#define IPMIP_DHCP_OPTCODE_PATH_MTU_PLATEAU_TABLE 25
#define IPMIP_DHCP_OPTCODE_INTERFACE_MTU 26
#define IPMIP_DHCP_OPTCODE_ALL_SUBNETS_LOCAL 27
#define IPMIP_DHCP_OPTCODE_BROADCAST_ADDRESS 28
#define IPMIP_DHCP_OPTCODE_PERFORM_MASK_DISCOVERY 29
#define IPMIP_DHCP_OPTCODE_MASK_SUPPLIER 30
#define IPMIP_DHCP_OPTCODE_ROUTER_DISCOVERY 31
#define IPMIP_DHCP_OPTCODE_ROUTER_SOLICITATION_ADDRESS 32
#define IPMIP_DHCP_OPTCODE_STATIC_ROUTES 33
#define IPMIP_DHCP_OPTCODE_TRAILER_ENCAPSULATION 34
#define IPMIP_DHCP_OPTCODE_ARP_CACHE_TIMEOUT 35
#define IPMIP_DHCP_OPTCODE_IEEE802_3_ENCAPSULATION 36
#define IPMIP_DHCP_OPTCODE_DEFAULT_TCP_TTL 37
#define IPMIP_DHCP_OPTCODE_TCP_KEEPALIVE_INTERVAL 38
#define IPMIP_DHCP_OPTCODE_TCP_KEEPALIVE_GARBAGE 39
#define IPMIP_DHCP_OPTCODE_NIS_DOMAIN 40
#define IPMIP_DHCP_OPTCODE_NIS_SERVERS 41
#define IPMIP_DHCP_OPTCODE_NTP_SERVERS 42
#define IPMIP_DHCP_OPTCODE_VENDOR_ENCAPSULATED_OPTIONS 43
#define IPMIP_DHCP_OPTCODE_NETBIOS_NAME_SERVERS 44
#define IPMIP_DHCP_OPTCODE_NETBIOS_DD_SERVER 45
#define IPMIP_DHCP_OPTCODE_NETBIOS_NODE_TYPE 46
#define IPMIP_DHCP_OPTCODE_NETBIOS_SCOPE 47
#define IPMIP_DHCP_OPTCODE_FONT_SERVERS 48
#define IPMIP_DHCP_OPTCODE_X_DISPLAY_MANAGER 49
#define IPMIP_DHCP_OPTCODE_DHCP_REQUESTED_ADDRESS 50
#define IPMIP_DHCP_OPTCODE_DHCP_LEASE_TIME 51
#define IPMIP_DHCP_OPTCODE_DHCP_OPTION_OVERLOAD 52
#define IPMIP_DHCP_OPTCODE_DHCP_MESSAGE_TYPE 53
#define IPMIP_DHCP_OPTCODE_DHCP_SERVER_IDENTIFIER 54
#define IPMIP_DHCP_OPTCODE_DHCP_PARAMETER_REQUEST_LIST 55
#define IPMIP_DHCP_OPTCODE_DHCP_MESSAGE 56
#define IPMIP_DHCP_OPTCODE_DHCP_MAX_MESSAGE_SIZE 57
#define IPMIP_DHCP_OPTCODE_DHCP_RENEWAL_TIME 58
#define IPMIP_DHCP_OPTCODE_DHCP_REBINDING_TIME 59
#define IPMIP_DHCP_OPTCODE_VENDOR_CLASS_IDENTIFIER 60
#define IPMIP_DHCP_OPTCODE_VENDOR_CLASS 60
#define IPMIP_DHCP_OPTCODE_CLIENT_IDENTIFIER 61
#define IPMIP_DHCP_OPTCODE_NWIP_DOMAIN 62
#define IPMIP_DHCP_OPTCODE_NISPLUS_DOMAIN 64
#define IPMIP_DHCP_OPTCODE_NISPLUS_SERVERS 65
#define IPMIP_DHCP_OPTCODE_TFTP_SERVER_NAME 66
#define IPMIP_DHCP_OPTCODE_BOOTFILE_NAME 67
#define IPMIP_DHCP_OPTCODE_HOME_AGENTS 68
#define IPMIP_DHCP_OPTCODE_SMTP_SERVERS 69
#define IPMIP_DHCP_OPTCODE_POP3_SERVERS 70
#define IPMIP_DHCP_OPTCODE_NNTP_SERVERS 71
#define IPMIP_DHCP_OPTCODE_WWW_SERVERS 72
#define IPMIP_DHCP_OPTCODE_FINGER_SERVERS 73
#define IPMIP_DHCP_OPTCODE_IRC_SERVERS 74
#define IPMIP_DHCP_OPTCODE_STREETTALK_SERVERS 75
#define IPMIP_DHCP_OPTCODE_STDA_SERVERS 76
#define IPMIP_DHCP_OPTCODE_USER_CLASS 77
#define IPMIP_DHCP_OPTCODE_RELAY_AGENT_INFO 82
/*
*===========================================================================
* DHCP RELAY AGENT IFNO SUBOPTIONS
*===========================================================================
* DHCP sub options used with IPMIP_DHCP_OPTCODE_RELAY_AGENT_INFO (82)
*/
#define IPMIP_DHCP_SUBOPTCODE_RA_CIRCUIT_ID 1
#define IPMIP_DHCP_SUBOPTCODE_RA_REMOTE_ID 2
#define IPMIP_DHCP_SUBOPTCODE_RA_LINK_SELECTION 5 /* RFC3527 */
#define IPMIP_DHCP_SUBOPTCODE_RA_SERVER_OVERRIDE 11 /* RFC5107 */
#define IPMIP_DHCP_BROADCAST_FLAG (0x8000)
enum
{
IPMIP_DHCP_TYPE_BOOL = 0,
IPMIP_DHCP_TYPE_U32,
IPMIP_DHCP_TYPE_U16,
IPMIP_DHCP_TYPE_U8,
IPMIP_DHCP_TYPE_STRING,
IPMIP_DHCP_TYPE_IP,
IPMIP_DHCP_TYPE_IP_PAIR,
IPMIP_DHCP_TYPE_MAX
};
enum
{
IPMIP_DHCP_ALLOC_ANY,
IPMIP_DHCP_ALLOC_EXACT,
IPMIP_DHCP_ALLOC_NETWORK
};
extern const char *ipmip_dhcp_type_name[];
/*
****************************************************************************
* 5 TYPES
****************************************************************************
*/
struct Ipmip_context;
struct Ipmip_proc;
struct Ip_sockaddr_in;
struct Ipmip_buffer;
struct Ipcom_route;
struct Ipmip_dhcp_lease;
#include <ipcom_align16.h>
typedef struct IP_PACKED1 Ipmip_dhcp_hdr
{
Ip_u8 op; /* Message operation code */
Ip_u8 htype; /* Link-layer address type */
Ip_u8 hlen; /* Link-layer address length */
Ip_u8 hops; /* Number of relay agents between client and server */
Ip_u32 xid; /* Transaction ID */
Ip_u16 secs; /* Elapsed time since a client began the dhcp process */
Ip_u16 flags; /* Flags field. The least significant bit is the broadcast bit */
Ip_u32 ciaddr; /* Client IP address if client in bound,renew or rebinding. */
Ip_u32 yiaddr; /* 'your' (client) IP address. */
Ip_u32 siaddr; /* IP address of next server to use in bootstrap */
Ip_u32 giaddr; /* Relay agent IP address, used in booting via a relay agent. */
Ip_u8 chaddr[16]; /* Client hardware address. */
Ip_u8 sname[IPMIP_DHCP_PKT_HDR_SNAME_LEN]; /* Optional server host name, null terminated string. */
Ip_u8 file[IPMIP_DHCP_PKT_HDR_FILE_LEN]; /* Boot file name, null terminated string */
Ip_u32 cookie; /* DHCP/BOOTP magic cookie */
} IP_PACKED2
Ipmip_dhcp_hdr_t;
#include <ipcom_align16.h>
struct Ipmip_lladdr;
typedef struct Ipmip_dhcp_node
{
/* HASH parameters */
Ip_u32 ifindex;
Ip_u32 remote_id;
struct Ip_iovec clientid;
Ipmip_timer_lock_t *lock;
Ipmip_timer_func_t process_func;
void *opaque;
} Ipmip_dhcp_node_t;
typedef struct Ipmip_dhcp_context
{
/**/
Ipcom_mutex mutex;
Ip_fd fd_udp;
Ip_fd fd_pkt;
Ip_fd fd_raw;
Ipcom_hash *ifindex_table;
Ipcom_hash *clientid_table;
Ipcom_hash *remote_id_table;
} Ipmip_dhcp_context_t;
typedef struct Ipmip_dhcp_option
{
Ipcom_list next;
Ip_u8 type;
Ip_u8 option[1];
} Ipmip_dhcp_option_t;
typedef struct Ipmip_dhcp_option_def
{
const char *name;
Ip_u8 code;
Ip_u8 type;
} Ipmip_dhcp_option_def_t;
typedef void (*Ipmip_dhcp_lease_free_t)
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
struct Ipmip_dhcp_lease *lease
);
typedef struct Ipmip_dhcp_rtab
{
Ipmip_dhcp_lease_free_t rtab_free;
Ipcom_mutex rtab_lock;
Ipmip_rtab_t *rtab;
struct Ipmip_context *rtab_ctx;
struct Ipmip_proc *rtab_proc;
} Ipmip_dhcp_rtab_t;
typedef struct Ipmip_dhcp_pool
{
Ipcom_list next;
char *name;
Ipcom_list slices;
struct Ipmip_context *ctx;
Ipmip_dhcp_rtab_t *rtab;
Ipmip_dhcp_option_def_t *options;
} Ipmip_dhcp_pool_t;
typedef struct Ipmip_dhcp_lease
{
Ipmip_route_t ipmip;
/* Key & Mask */
Ip_u32 mask;
Ip_u32 prefix;
Ip_u8 netmask_bits;
Ip_u8 prefix_len;
void *opaque;
Ipmip_dhcp_pool_t *pool;
Ipmip_dhcp_rtab_t *rtab;
} Ipmip_dhcp_lease_t;
typedef struct Ipmip_dhcp_slice
{
Ipcom_list next;
Ip_u32 network;
Ip_u32 mask;
Ip_u32 start;
Ip_u32 end;
Ip_u8 netmask_bits;
Ip_u8 slice_size;
Ip_u32 remain;
Ip_u32 last;
} Ipmip_dhcp_slice_t;
/*
****************************************************************************
* 6 FUNCTIONS
****************************************************************************
*/
/*
****************************************************************************
* 6 FUNCTIONS
****************************************************************************
*/
/*******************************************************************************
*
* ipmip_dhcp_context_create - ipmip_dhcp_context_create
*
* Allocate the DHCP context
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_context_create
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc
);
/*******************************************************************************
*
* ipmip_dhcp_context_destroy - ipmip_dhcp_context_destroy
*
* Free an DHCP context
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_context_destroy
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc
);
/*******************************************************************************
*
* ipmip_dhcp_option_find - ipmip_dhcp_option_find
*
* Find a particular option
*
* Parameters:
* \is
* \i options
* Options array
* \i optsize
* Size of options array
* \i code
* Code we're looking for
* \ie
*
* RETURNS: The option if found, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u8 *ipmip_dhcp_option_find
(
Ip_u8 *options,
int optsize,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_find - ipmip_dhcp_option_buffer_find
*
* Find a particular option in a dhcp packet
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i code
* Code we're looking for
* \ie
*
* RETURNS: The option if found, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u8 *ipmip_dhcp_option_buffer_find
(
struct Ipmip_buffer *buf,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_find_ip - ipmip_dhcp_option_buffer_find_ip
*
* Find a particular option in a dhcp packet and return its value as a ip
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i code
* Code we're looking for
* \ie
*
* RETURNS: The ip data value of the option if found, otherwise 0
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u32 ipmip_dhcp_option_buffer_find_ip
(
struct Ipmip_buffer *buf,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_find_u32 - ipmip_dhcp_option_buffer_find_u32
*
* Find a particular option in a dhcp packet and return its value as a u32
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i code
* Code we're looking for
* \ie
*
* RETURNS: The u32 data value of the option if found, otherwise 0
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u32 ipmip_dhcp_option_buffer_find_u32
(
struct Ipmip_buffer *buf,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_option_get_next - ipmip_dhcp_option_get_next
*
* Get next option
*
* Parameters:
* \is
* \i options
* Options array
* \i optsize
* Size of options array
* \ie
*
* RETURNS: The next option, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ip_u8 *ipmip_dhcp_option_get_next
(
Ip_u8 *options,
int optsize
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_open - ipmip_dhcp_option_buffer_open
*
* Remove the END option in case it exists.
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i code
* The DHCP code to terminate at
* \ie
*
* RETURNS: IP_TRUE if the buffer was terminated
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip_dhcp_option_buffer_open
(
struct Ipmip_buffer *buf,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_close - ipmip_dhcp_option_buffer_close
*
* Add the END option
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_option_buffer_close
(
struct Ipmip_buffer *buf
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_init - ipmip_dhcp_option_buffer_init
*
* Init a new option (add opt/len)
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* The option number
* \ie
*
* RETURNS: The offset of the new option
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_option_buffer_init
(
struct Ipmip_buffer *buf,
Ip_u8 opt
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_end - ipmip_dhcp_option_buffer_end
*
* Close an option begun by using ipmip_dhcp_option_buffer_init
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt_start
* The option offset returned by init
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_option_buffer_end
(
struct Ipmip_buffer *buf,
int opt_start
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_append - ipmip_dhcp_option_buffer_append
*
* Add a new option
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* The option number
* \i opt_size
* The option size
* \i opt_data
* The option data
* \ie
*
* RETURNS: The offset of the new option
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_option_buffer_append
(
struct Ipmip_buffer *buf,
Ip_u8 opt,
Ip_u8 opt_size,
void *opt_data
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_append_u8 - ipmip_dhcp_option_buffer_append_u8
*
* Add a new u8 option
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* The option number
* \i opt_data
* The option data
* \ie
*
* RETURNS: The offset of the new option
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_option_buffer_append_u8
(
struct Ipmip_buffer *buf,
Ip_u8 opt,
Ip_u8 opt_data
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_append_u32 - ipmip_dhcp_option_buffer_append_u32
*
* Add a new u32 option
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* The option number
* \i opt_data
* The option data
* \ie
*
* RETURNS: The offset of the new option
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_option_buffer_append_u32
(
struct Ipmip_buffer *buf,
Ip_u8 opt,
Ip_u32 opt_data
);
/*******************************************************************************
*
* ipmip_dhcp_option_buffer_append_ip - ipmip_dhcp_option_buffer_append_ip
*
* Add a new ip option
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* The option number
* \i opt_data
* The option data
* \ie
*
* RETURNS: The offset of the new option
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_option_buffer_append_ip
(
struct Ipmip_buffer *buf,
Ip_u8 opt,
Ip_u32 opt_data
);
/*******************************************************************************
*
* ipmip_dhcp_register - ipmip_dhcp_register
*
* Register a forwarding structure
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 node
* Node to register
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_register
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_node_t *node
);
/*******************************************************************************
*
* ipmip_dhcp_unregister - ipmip_dhcp_unregister
*
* Unregister a forwarding structure
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 node
* Node to register
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_unregister
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_node_t *node
);
/*******************************************************************************
*
* ipmip_dhcp_process - ipmip_dhcp_process
*
* Process DHCP messages
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_process
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc
);
/*******************************************************************************
*
* ipmip_dhcp_retrieve_client_id - ipmip_dhcp_retrieve_client_id
*
* Retrieve the client id
*
* Parameters:
* \is
* \i pbuf
* Packet
* \i vec
* Vector
* \ie
*
* RETURNS: IP_TRUE if the retrieved id is a client ID.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip_dhcp_retrieve_client_id
(
struct Ipmip_buffer *pbuf,
struct Ip_iovec *vec
);
/*******************************************************************************
*
* ipmip_dhcp_relay_to_server - ipmip_dhcp_relay_to_server
*
* Forward a DHCP request to the server
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pbuf
* The DHCP request
* \i src
* Source address for this frame
* \i server
* The DHCP server to forward to
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_relay_to_server
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
struct Ipmip_pktbuf *pbuf,
Ip_u32 src,
Ip_u32 server
);
/*******************************************************************************
*
* ipmip_dhcp_write_to_client - ipmip_dhcp_write_to_client
*
* Forward a DHCP request to the client
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pbuf
* The DHCP request
* \i ifinet
* Optional source address for the forwarded message
* \i iff
* Outgoing interface
* \i broadcast
* Force broadcast
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_write_to_client
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
struct Ipmip_pktbuf *pbuf,
Ip_u32 ifinet,
struct Ipmip_if *iff,
Ip_bool broadcast
);
/*******************************************************************************
*
* ipmip_dhcp_server_reply - ipmip_dhcp_server_reply
*
* Send a server DHCP request to the client
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pbuf
* The DHCP request
* \i ifinet
* Optional source address for the forwarded message
* \i iff
* Outgoing interface
* \i broadcast
* Force broadcast
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_server_reply
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
struct Ipmip_pktbuf *pbuf,
Ip_u32 ifinet,
struct Ipmip_if *iff,
Ip_bool broadcast
);
/*******************************************************************************
*
* ipmip_dhcp_option_parse_type - ipmip_dhcp_option_parse_type
*
* Parse a DHCP option
*
* Parameters:
* \is
* \i code
* The DHCP option code
* \i value
* Value
* \i type
* Type of option
* \ie
*
* RETURNS: The option
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_option_t *ipmip_dhcp_option_parse_type
(
Ip_u8 code,
const char *value,
int type
);
/*******************************************************************************
*
* ipmip_dhcp_option_parse_name - ipmip_dhcp_option_parse_name
*
* Parse a DHCP option based on name
*
* Parameters:
* \is
* \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 name
* Name of option
* \i value
* Value
* \i endptr
* End of matching
* \ie
*
* RETURNS: The option if known, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_option_t *ipmip_dhcp_option_parse_name
(
struct Ipmip_proc *proc,
const char *name,
const char *value,
char **endptr
);
/*******************************************************************************
*
* ipmip_dhcp_option_def_name_get - ipmip_dhcp_option_def_name_get
*
* Parse a DHCP option definition based on name
*
* Parameters:
* \is
* \i name
* Name of option
* \ie
*
* RETURNS: The option definition if known, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL const Ipmip_dhcp_option_def_t *ipmip_dhcp_option_def_name_get
(
const char *name
);
/*******************************************************************************
*
* ipmip_dhcp_option_def_code_get - ipmip_dhcp_option_def_code_get
*
* Parse a DHCP option definition based on code
*
* Parameters:
* \is
* \i code
* Code of option
* \ie
*
* RETURNS: The option definition if known, otherwise IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL const Ipmip_dhcp_option_def_t *ipmip_dhcp_option_def_code_get
(
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_pool_create - ipmip_dhcp_pool_create
*
* Create a pool
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 name
* Name of pool
* \i rtab
* Routing table
* \ie
*
* RETURNS: The pool
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_pool_t *ipmip_dhcp_pool_create
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
const char *name,
Ipmip_dhcp_rtab_t *rtab
);
/*******************************************************************************
*
* ipmip_dhcp_pool_destroy - ipmip_dhcp_pool_destroy
*
* Destroy a pool
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pool
* Pool
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_pool_destroy
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_pool_t *pool
);
/*******************************************************************************
*
* ipmip_dhcp_rtab_create - ipmip_dhcp_rtab_create
*
* Create a pool rtab
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 rtab_free
* Routing table free function
* \ie
*
* RETURNS: The pool rtab
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_rtab_t *ipmip_dhcp_rtab_create
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_lease_free_t rtab_free
);
/*******************************************************************************
*
* ipmip_dhcp_rtab_destroy - ipmip_dhcp_rtab_destroy
*
* Free an pool rtab
*
* Parameters:
* \is
* \i rtab
* Rtab to free
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_rtab_destroy
(
Ipmip_dhcp_rtab_t *rtab
);
/*******************************************************************************
*
* ipmip_dhcp_pool_lease_alloc - ipmip_dhcp_pool_lease_alloc
*
* Allocate a lease. If addr is specified, that will be attempted to allocate.
* The RTAB mutex MUST be locked
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pool
* DHCP pool
* \i addr
* address
* \i prefix_len
* Prefix length
* \i alloc_rule
* Method of allocation
* \i opaque
* Opaque data to store
* \ie
*
* RETURNS: The allocated lease or IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_lease_t *ipmip_dhcp_pool_lease_alloc
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_pool_t *pool,
Ip_u32 addr,
Ip_u8 prefix_len,
int alloc_rule,
void *opaque
);
/*******************************************************************************
*
* ipmip_dhcp_lease_alloc - ipmip_dhcp_lease_alloc
*
* Allocate a specific lease. The RTAB mutex MUST be locked
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 pool
* DHCP pool. May be IP_NULL
* \i rtab
* DHCP rtab
* \i addr
* address
* \i prefix_len
* Prefix length
* \i netmask_bits
* Number of bits in the netmask associated with this address
* \i opaque
* Opaque data to store
* \ie
*
* RETURNS: The allocated lease or IP_NULL
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_lease_t *ipmip_dhcp_lease_alloc
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_pool_t *pool,
Ipmip_dhcp_rtab_t *rtab,
Ip_u32 addr,
Ip_u8 prefix_len,
Ip_u8 netmask_bits,
void *opaque
);
/*******************************************************************************
*
* ipmip_dhcp_lease_lookup - ipmip_dhcp_lease_lookup
*
* Find a specific lease. The RTAB mutex MUST be locked
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 rtab
* DHCP rtab
* \i addr
* address
* \i prefix_len
* Prefix length
* \ie
*
* RETURNS: The lease if it exists
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_lease_t *ipmip_dhcp_lease_lookup
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_rtab_t *rtab,
Ip_u32 addr,
Ip_u8 prefix_len
);
/*******************************************************************************
*
* ipmip_dhcp_lease_delete - ipmip_dhcp_lease_delete
*
* Delete a specific lease. The RTAB mutex MUST be locked
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP. 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 ipmip_context_create(). See ipmip_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 lease
* DHCP lease
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_lease_delete
(
struct Ipmip_context *ctx,
struct Ipmip_proc *proc,
Ipmip_dhcp_lease_t *lease
);
/*******************************************************************************
*
* ipmip_dhcp_pool_add_slice - ipmip_dhcp_pool_add_slice
*
* Add a slice to a pool. The RTAB mutex MUST be locked
*
* Parameters:
* \is
* \i pool
* The pool
* \i start_addr
* Start address
* \i end_addr
* End address; if not specified will be calculated based on start and plen
* \i plen
* Prefix len for this slice
* \i slice_size
* Size of slices to be allocated
* \ie
*
* RETURNS: No return value
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip_dhcp_pool_add_slice
(
Ipmip_dhcp_pool_t *pool,
Ip_u32 start_addr,
Ip_u32 end_addr,
Ip_u8 plen,
Ip_u8 slice_size
);
/*******************************************************************************
*
* ipmip_dhcp_option_print - ipmip_dhcp_option_print
*
* Print an option array based on type
*
* Parameters:
* \is
* \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 opt
* Option block
* \i type
* Type
* \ie
*
* RETURNS: The option value in human readable form
*
* ERRNO:
*
*/
IP_GLOBAL const char *ipmip_dhcp_option_print
(
struct Ipmip_proc *proc,
Ip_u8 *opt,
int type
);
/*******************************************************************************
*
* ipmip_dhcp_option_entry_find - ipmip_dhcp_option_entry_find
*
* Return a specific option in an array
*
* Parameters:
* \is
* \i opts
* Options
* \i code
* code
* \ie
*
* RETURNS: The option if found
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip_dhcp_option_t *ipmip_dhcp_option_entry_find
(
Ipcom_list *options,
Ip_u8 code
);
/*******************************************************************************
*
* ipmip_dhcp_buffer_append_option_entry - ipmip_dhcp_buffer_append_option_entry
*
* Add a specific option to a buffer, unless that code already exists.
*
* Parameters:
* \is
* \i buf
* A pointer to an initialized dynamic mobility buffer containing a DHCP frame.
* See ipmip_buffer.h for more information regarding dynamic buffers and their
* capabilities.
* \i opt
* Option
* \ie
*
* RETURNS: The option offset if added, -1 otherwise.
*
* ERRNO:
*
*/
IP_GLOBAL int ipmip_dhcp_buffer_append_option_entry
(
struct Ipmip_buffer *buf,
Ipmip_dhcp_option_t *opt
);
#endif
#ifdef __cplusplus
}
#endif
#endif
/*
****************************************************************************
* END OF FILE
****************************************************************************
*/
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