rlm_dhcpv4.c File Reference

DHCP client and relay. More...

#include <freeradius-devel/server/base.h>
#include <freeradius-devel/server/module_rlm.h>
#include <freeradius-devel/io/pair.h>
#include <freeradius-devel/util/udp_queue.h>
#include <freeradius-devel/dhcpv4/dhcpv4.h>
#include <freeradius-devel/unlang/module.h>

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Data Structures
struct	rlm_dhcpv4_delay_t
struct	rlm_dhcpv4_t
struct	rlm_dhcpv4_thread_t

Functions
static void	dhcpv4_queue_resume (bool sent, void *rctx)
static unlang_action_t	dhcpv4_resume (unlang_result_t *p_result, module_ctx_t const *mctx, UNUSED request_t *request)
static int	mod_instantiate (module_inst_ctx_t const *mctx)
	Bootstrap the module.
static unlang_action_t	mod_process (unlang_result_t *p_result, module_ctx_t const *mctx, request_t *request)
	Send packets outbound.
static int	mod_thread_instantiate (module_thread_inst_ctx_t const *mctx)
	Instantiate thread data for the submodule.

Variables
static fr_dict_attr_t const *	attr_gateway_ip_address
static fr_dict_attr_t const *	attr_message_type
static fr_dict_attr_t const *	attr_net_dst_ip
static fr_dict_attr_t const *	attr_net_dst_port
static fr_dict_attr_t const *	attr_packet_type
static fr_dict_attr_t const *	attr_transaction_id
static fr_dict_t const *	dict_dhcpv4
static fr_dict_t const *	dict_freeradius
static const conf_parser_t	module_config []
module_rlm_t	rlm_dhcpv4
fr_dict_autoload_t	rlm_dhcpv4_dict []
fr_dict_attr_autoload_t	rlm_dhcpv4_dict_attr []

Detailed Description

DHCP client and relay.

Id

2ee81949f664d948b5460c831bda11768a25ff7d

Copyright

2012-2018 The FreeRADIUS server project

Definition in file rlm_dhcpv4.c.

---

Data Structure Documentation

rlm_dhcpv4_delay_t

struct rlm_dhcpv4_delay_t

Definition at line 101 of file rlm_dhcpv4.c.

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Data Fields
request_t *	request
bool	sent

rlm_dhcpv4_t

struct rlm_dhcpv4_t

Definition at line 70 of file rlm_dhcpv4.c.

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Data Fields
fr_udp_queue_config_t	config	UDP queue config.
uint32_t	max_packet_size	Maximum packet size.

rlm_dhcpv4_thread_t

struct rlm_dhcpv4_thread_t

Definition at line 76 of file rlm_dhcpv4.c.

Collaboration diagram for rlm_dhcpv4_thread_t:

Data Fields
uint8_t *	buffer	for encoding packets
uint32_t	buffer_size	Maximum packet size.
fr_udp_queue_t *	uq	udp queue handler
uint32_t	xid	XID.

Function Documentation

dhcpv4_queue_resume()

static void dhcpv4_queue_resume ( bool  sent, void *  rctx  )

static

Definition at line 106 of file rlm_dhcpv4.c.

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dhcpv4_resume()

static unlang_action_t dhcpv4_resume ( unlang_result_t *  p_result, module_ctx_t const *  mctx, UNUSED request_t *  request  )

static

Definition at line 115 of file rlm_dhcpv4.c.

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mod_instantiate()

static int mod_instantiate ( module_inst_ctx_t const *  mctx )

static

Bootstrap the module.

Bootstrap I/O and type submodules.

Parameters

[in]

mctx

data for this module

Returns

• 0 on success.
• -1 on failure.

Definition at line 290 of file rlm_dhcpv4.c.

mod_process()

static unlang_action_t mod_process ( unlang_result_t *  p_result, module_ctx_t const *  mctx, request_t *  request  )

static

Send packets outbound.

Definition at line 131 of file rlm_dhcpv4.c.

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mod_thread_instantiate()

static int mod_thread_instantiate ( module_thread_inst_ctx_t const *  mctx )

static

Instantiate thread data for the submodule.

Definition at line 258 of file rlm_dhcpv4.c.

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Variable Documentation

attr_gateway_ip_address

fr_dict_attr_t const* attr_gateway_ip_address

static

Definition at line 49 of file rlm_dhcpv4.c.

attr_message_type

fr_dict_attr_t const* attr_message_type

static

Definition at line 45 of file rlm_dhcpv4.c.

attr_net_dst_ip

fr_dict_attr_t const* attr_net_dst_ip

static

Definition at line 47 of file rlm_dhcpv4.c.

attr_net_dst_port

fr_dict_attr_t const* attr_net_dst_port

static

Definition at line 48 of file rlm_dhcpv4.c.

attr_packet_type

fr_dict_attr_t const* attr_packet_type

static

Definition at line 46 of file rlm_dhcpv4.c.

attr_transaction_id

fr_dict_attr_t const* attr_transaction_id

static

Definition at line 44 of file rlm_dhcpv4.c.

dict_dhcpv4

fr_dict_t const* dict_dhcpv4

static

Definition at line 34 of file rlm_dhcpv4.c.

dict_freeradius

fr_dict_t const* dict_freeradius

static

Definition at line 35 of file rlm_dhcpv4.c.

module_config

const conf_parser_t module_config[]

static

Initial value:

= {
        { FR_CONF_OFFSET_TYPE_FLAGS("ipaddr", FR_TYPE_IPV4_ADDR, 0, rlm_dhcpv4_t, config.ipaddr), },
        { FR_CONF_OFFSET_TYPE_FLAGS("ipv4addr", FR_TYPE_IPV4_ADDR, 0, rlm_dhcpv4_t, config.ipaddr) },
 
        { FR_CONF_OFFSET("port", rlm_dhcpv4_t, config.port), .dflt = "68" },
 
        { FR_CONF_OFFSET("interface", rlm_dhcpv4_t, config.interface) },
 
        { FR_CONF_OFFSET_IS_SET("send_buff", FR_TYPE_UINT32, 0, rlm_dhcpv4_t, config.send_buff) },
 
        { FR_CONF_OFFSET("max_packet_size", rlm_dhcpv4_t, max_packet_size), .dflt = "576" },
        { FR_CONF_OFFSET("max_queued_packets", rlm_dhcpv4_t, config.max_queued_packets), .dflt = "65536" },
 
        { FR_CONF_OFFSET("timeout", rlm_dhcpv4_t, config.max_queued_time), .dflt = "0" },
 
        CONF_PARSER_TERMINATOR
}

Definition at line 83 of file rlm_dhcpv4.c.

rlm_dhcpv4

module_rlm_t rlm_dhcpv4

Initial value:

= {
        .common = {
                .magic                  = MODULE_MAGIC_INIT,
                .name                   = "dhcpv4",
                .inst_size              = sizeof(rlm_dhcpv4_t),
                .instantiate            = mod_instantiate,
 
                .config                 = module_config,
 
                .thread_inst_size       = sizeof(rlm_dhcpv4_thread_t),
                .thread_inst_type       = "rlm_dhcpv4_thread_t",
                .thread_instantiate     = mod_thread_instantiate
        },
        .method_group = {
                .bindings = (module_method_binding_t[]){
                        { .section = SECTION_NAME(CF_IDENT_ANY, CF_IDENT_ANY),  .method = mod_process },
                        MODULE_BINDING_TERMINATOR
                }
        }
}

Definition at line 323 of file rlm_dhcpv4.c.

rlm_dhcpv4_dict

fr_dict_autoload_t rlm_dhcpv4_dict

Initial value:

= {
        { .out = &dict_dhcpv4, .proto = "dhcpv4" },
        { .out = &dict_freeradius, .proto = "freeradius" },
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 38 of file rlm_dhcpv4.c.

rlm_dhcpv4_dict_attr

fr_dict_attr_autoload_t rlm_dhcpv4_dict_attr

Initial value:

= {
        { .out = &attr_transaction_id, .name = "Transaction-Id", .type = FR_TYPE_UINT32, .dict = &dict_dhcpv4 },
        { .out = &attr_gateway_ip_address, .name = "Gateway-IP-Address", .type = FR_TYPE_IPV4_ADDR, .dict = &dict_dhcpv4 },
        { .out = &attr_message_type, .name = "Message-Type", .type = FR_TYPE_UINT8, .dict = &dict_dhcpv4 },
        { .out = &attr_packet_type, .name = "Packet-Type", .type = FR_TYPE_UINT32, .dict = &dict_dhcpv4 },
        { .out = &attr_net_dst_ip, .name = "Net.Dst.IP", .type = FR_TYPE_COMBO_IP_ADDR, .dict = &dict_freeradius },
        { .out = &attr_net_dst_port, .name = "Net.Dst.Port", .type = FR_TYPE_UINT16, .dict = &dict_freeradius },
        DICT_AUTOLOAD_TERMINATOR
}

Definition at line 52 of file rlm_dhcpv4.c.