proto_bfd_udp.c File Reference

BFD handler for UDP. More...

#include <netdb.h>
#include <freeradius-devel/server/protocol.h>
#include <freeradius-devel/util/udp.h>
#include <freeradius-devel/util/trie.h>
#include <freeradius-devel/bfd/bfd.h>
#include <freeradius-devel/io/application.h>
#include <freeradius-devel/io/listen.h>
#include <freeradius-devel/io/schedule.h>
#include "session.h"

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Data Structures
struct	proto_bfd_udp_t
struct	proto_bfd_udp_thread_t

Functions
static fr_client_t *	mod_client_find (fr_listen_t *li, fr_ipaddr_t const *ipaddr, int ipproto)
static void	mod_event_list_set (fr_listen_t *li, fr_event_list_t *el, void *nr)
	Set the event list for a new socket. More...
static int	mod_fd_set (fr_listen_t *li, int fd)
	Set the file descriptor for this socket. More...
static int	mod_instantiate (module_inst_ctx_t const *mctx)
static char const *	mod_name (fr_listen_t *li)
static void	mod_network_get (int *ipproto, bool *dynamic_clients, fr_trie_t const **trie, void *instance)
static int	mod_open (fr_listen_t *li)
	Open a UDP listener for RADIUS. More...
static ssize_t	mod_read (fr_listen_t *li, void **packet_ctx, fr_time_t *recv_time_p, uint8_t *buffer, size_t buffer_len, size_t *leftover)
static ssize_t	mod_write (fr_listen_t *li, void *packet_ctx, UNUSED fr_time_t request_time, uint8_t *buffer, size_t buffer_len, UNUSED size_t written)

Variables
static const conf_parser_t	networks_config []
fr_app_io_t	proto_bfd_udp
static const conf_parser_t	udp_listen_config []

Detailed Description

BFD handler for UDP.

Id

2e40eb6b90eedd466c1025ff99b87ac7cf054f8c

Copyright

2023 Network RADIUS SAS (legal.nosp@m.@net.nosp@m.workr.nosp@m.adiu.nosp@m.s.com)

Definition in file proto_bfd_udp.c.

---

Data Structure Documentation

proto_bfd_udp_t

struct proto_bfd_udp_t

Definition at line 47 of file proto_bfd_udp.c.

Collaboration diagram for proto_bfd_udp_t:

Data Fields
fr_ipaddr_t *	allow	allowed networks for dynamic clients
CONF_SECTION *	cs	our configuration
fr_ipaddr_t *	deny	denied networks for dynamic clients
bool	dynamic_clients	whether we have dynamic clients
char const *	interface	Interface to bind to.
fr_ipaddr_t	ipaddr	IP address to listen on.
bool	only_state_changes	on read(), only send packets which signal a state change
fr_rb_tree_t *	peers	our peers
uint16_t	port	Port to listen on.
char const *	port_name	Name of the port for getservent().
uint32_t	recv_buff	How big the kernel's receive buffer should be.
bool	recv_buff_is_set	Whether we were provided with a recv_buff.
uint32_t	send_buff	How big the kernel's send buffer should be.
bool	send_buff_is_set	Whether we were provided with a send_buff.
char const *	server_name	virtual server name
fr_trie_t *	trie	for parsed networks
uint8_t	ttl	default ttl

proto_bfd_udp_thread_t

struct proto_bfd_udp_thread_t

Definition at line 37 of file proto_bfd_udp.c.

Collaboration diagram for proto_bfd_udp_thread_t:

Data Fields
fr_io_address_t *	connection	for connected sockets.
char const *	name	socket name
int	sockfd
fr_stats_t	stats	statistics for this socket

Function Documentation

mod_client_find()

static fr_client_t* mod_client_find ( fr_listen_t *  li, fr_ipaddr_t const *  ipaddr, int  ipproto  )

static

Definition at line 474 of file proto_bfd_udp.c.

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mod_event_list_set()

static void mod_event_list_set ( fr_listen_t *  li, fr_event_list_t *  el, void *  nr  )

static

Set the event list for a new socket.

Parameters

[in]	li	the listener
[in]	el	the event list
[in]	nr	context from the network side

Definition at line 489 of file proto_bfd_udp.c.

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mod_fd_set()

static int mod_fd_set ( fr_listen_t *  li, int  fd  )

static

Set the file descriptor for this socket.

Definition at line 333 of file proto_bfd_udp.c.

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mod_instantiate()

static int mod_instantiate ( module_inst_ctx_t const *  mctx )

static

Definition at line 356 of file proto_bfd_udp.c.

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mod_name()

static char const* mod_name ( fr_listen_t *  li )

static

Definition at line 348 of file proto_bfd_udp.c.

mod_network_get()

static void mod_network_get ( int *  ipproto, bool *  dynamic_clients, fr_trie_t const **  trie, void *  instance  )

static

Definition at line 233 of file proto_bfd_udp.c.

mod_open()

static int mod_open ( fr_listen_t *  li )

static

Open a UDP listener for RADIUS.

Definition at line 245 of file proto_bfd_udp.c.

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mod_read()

static ssize_t mod_read ( fr_listen_t *  li, void **  packet_ctx, fr_time_t *  recv_time_p, uint8_t *  buffer, size_t  buffer_len, size_t *  leftover  )

static

Definition at line 109 of file proto_bfd_udp.c.

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mod_write()

static ssize_t mod_write ( fr_listen_t *  li, void *  packet_ctx, UNUSED fr_time_t  request_time, uint8_t *  buffer, size_t  buffer_len, UNUSED size_t  written  )

static

Definition at line 194 of file proto_bfd_udp.c.

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Variable Documentation

networks_config

const conf_parser_t networks_config[]

static

Initial value:

= {
        { FR_CONF_OFFSET_TYPE_FLAGS("allow", FR_TYPE_COMBO_IP_PREFIX , CONF_FLAG_MULTI, proto_bfd_udp_t, allow) },
        { FR_CONF_OFFSET_TYPE_FLAGS("deny", FR_TYPE_COMBO_IP_PREFIX , CONF_FLAG_MULTI, proto_bfd_udp_t, deny) },
 
        CONF_PARSER_TERMINATOR
}

Definition at line 77 of file proto_bfd_udp.c.

proto_bfd_udp

fr_app_io_t proto_bfd_udp

Initial value:

= {
        .common = {
                .magic                  = MODULE_MAGIC_INIT,
                .name                   = "bfd_udp",
                .config                 = udp_listen_config,
                .inst_size              = sizeof(proto_bfd_udp_t),
                .thread_inst_size       = sizeof(proto_bfd_udp_thread_t),
                .instantiate            = mod_instantiate
        },
        .default_message_size   = FR_BFD_HEADER_LENGTH + 64, 
        .track_duplicates       = false,
 
        .open                   = mod_open,
        .read                   = mod_read,
        .write                  = mod_write,
        .fd_set                 = mod_fd_set,
        .network_get            = mod_network_get,
        .event_list_set         = mod_event_list_set,
        .client_find            = mod_client_find,
        .get_name               = mod_name,
}

Definition at line 516 of file proto_bfd_udp.c.

udp_listen_config

const conf_parser_t udp_listen_config[]

static

Initial value:

= {
        { FR_CONF_OFFSET_TYPE_FLAGS("ipaddr", FR_TYPE_COMBO_IP_ADDR, 0, proto_bfd_udp_t, ipaddr) },
        { FR_CONF_OFFSET_TYPE_FLAGS("ipv4addr", FR_TYPE_IPV4_ADDR, 0, proto_bfd_udp_t, ipaddr) },
        { FR_CONF_OFFSET_TYPE_FLAGS("ipv6addr", FR_TYPE_IPV6_ADDR, 0, proto_bfd_udp_t, ipaddr) },
 
        { FR_CONF_OFFSET("interface", proto_bfd_udp_t, interface) },
        { FR_CONF_OFFSET("port_name", proto_bfd_udp_t, port_name) },
 
        { FR_CONF_OFFSET("port", proto_bfd_udp_t, port) },
 
        { FR_CONF_OFFSET("ttl", proto_bfd_udp_t, ttl), .dflt = "255" },
 
        { FR_CONF_OFFSET("only_state_changes", proto_bfd_udp_t, only_state_changes), .dflt = "yes" },
 
        { FR_CONF_OFFSET_IS_SET("recv_buff", FR_TYPE_UINT32, 0, proto_bfd_udp_t, recv_buff) },
        { FR_CONF_OFFSET_IS_SET("send_buff", FR_TYPE_UINT32, 0, proto_bfd_udp_t, send_buff) },
 
 
        { FR_CONF_POINTER("networks", 0, CONF_FLAG_SUBSECTION, NULL), .subcs = (void const *) networks_config },
 
        CONF_PARSER_TERMINATOR
}

Definition at line 85 of file proto_bfd_udp.c.