/home/aaron/olsrd-current/olsrd/src/core/interfaces.c File Reference

#include "common/avl.h"
#include "common/string.h"
#include "defs.h"
#include "avl_olsr_comp.h"
#include "interfaces.h"
#include "olsr_timer.h"
#include "olsr_socket.h"
#include "olsr.h"
#include "parser.h"
#include "net_olsr.h"
#include "ipcalc.h"
#include "olsr_logging.h"
#include "os_net.h"
#include <assert.h>
#include <sys/time.h>
#include <sys/select.h>
#include "olsr_types.h"
#include <signal.h>
#include <unistd.h>

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Data Structures
struct	ifchgf
Defines
#define	BUFSPACE   (127*1024)
Functions
static void	check_interface_updates (void *)
bool	init_interfaces (void)
static void	remove_lost_interface_ip (struct interface_lost *lost)
static void	add_lost_interface_ip (union olsr_ip_addr *ip, uint32_t hello_timeout)
static struct interface_lost *	get_lost_interface_ip (union olsr_ip_addr *ip)
bool	is_lost_interface_ip (union olsr_ip_addr *ip)
void	destroy_interfaces (void)
struct interface *	add_interface (struct olsr_if_config *iface)
static void	check_interface_updates (void *foo __attribute__((unused)))
void	remove_interface (struct interface *ifp)
void	run_ifchg_cbs (struct interface *ifp, int flag)
struct interface *	if_ifwithaddr (const union olsr_ip_addr *addr)
struct interface *	if_ifwithsock (int fd)
struct interface *	if_ifwithname (const char *if_name)
struct interface *	if_ifwithindex (const int if_index)
const char *	if_ifwithindex_name (const int if_index)
void	lock_interface (struct interface *ifp)
void	unlock_interface (struct interface *ifp)
void	add_ifchgf (ifchg_cb_func f)
Variables
const char *	INTERFACE_MODE_NAMES []
struct list_entity	interface_head
struct avl_tree	interface_lost_tree
static struct ifchgf *	ifchgf_list = NULL
static struct olsr_memcookie_info *	interface_mem_cookie = NULL
static struct olsr_memcookie_info *	interface_lost_mem_cookie = NULL
static struct olsr_timer_info *	interface_poll_timerinfo = NULL
static struct olsr_timer_info *	hello_gen_timerinfo = NULL

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Define Documentation

#define BUFSPACE   (127*1024)

Definition at line 61 of file interfaces.c.

Referenced by add_interface().

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Function Documentation

void add_ifchgf

(

ifchg_cb_func

f

)

Add an ifchange function. These functions are called on all (non-initial) changes in the interface set.

Definition at line 525 of file interfaces.c.

References ifchgf::function, ifchgf::next, and olsr_malloc().

Referenced by olsrd_plugin_init().

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struct interface* add_interface

(

struct olsr_if_config *

iface

)

[read]

Definition at line 184 of file interfaces.c.

References all_zero, BUFSPACE, olsr_if_config::cnf, olsr_msg_params::emission_interval, olsr_socket_entry::fd, interface::hello_gen_timer, interface::hello_interval, HELLO_JITTER, olsr_if_options::hello_params, interface::hello_validity, interface::if_cfg, IFCHG_IF_ADD, interface::int_multicast, interface::int_name, interface::int_node, olsr_if_config::interf, interface_head, interface::ip_addr, olsr_config::ip_version, list_add_before(), lock_interface(), LOG_INTERFACE, olsr_if_options::mode, interface::mode, olsr_if_config::name, net_add_buffer(), olsr_change_myself_tc(), olsr_cnf, OLSR_ERROR, olsr_exit(), OLSR_INFO, olsr_input(), olsr_ip_to_string(), olsr_ipcmp(), olsr_memcookie_free(), olsr_memcookie_malloc(), olsr_config::olsr_port, interface::olsr_seqnum, interface::olsr_socket, olsr_socket_add(), OLSR_SOCKET_READ, olsr_timer_start(), os_getsocket46(), os_init_interface(), os_socket_set_olsr_options(), random(), olsr_config::router_id, run_ifchg_cbs(), interface::send_socket_fd, set_buffer_timer(), and olsr_msg_params::validity_time.

Referenced by check_interface_updates(), and init_interfaces().

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static void add_lost_interface_ip	(	union olsr_ip_addr *	ip,
		uint32_t	hello_timeout
	)			[static]

Definition at line 141 of file interfaces.c.

References avl_insert(), interface_lost_tree, LOG_INTERFACE, olsr_clock_getAbsolute(), OLSR_DEBUG, olsr_ip_to_string(), and olsr_memcookie_malloc().

Referenced by remove_interface().

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static void check_interface_updates

(

void *foo

__attribute__(unused)

)

[static]

Callback function for periodic check of interface parameters.

Definition at line 273 of file interfaces.c.

References add_interface(), olsr_if_options::autodetect_chg, chk_if_changed(), olsr_if_config::cnf, get_lost_interface_ip(), olsr_config::if_configs, olsr_if_config::interf, interface::ip_addr, LOG_INTERFACE, olsr_if_config::name, olsr_if_config::next, olsr_clock_isPast(), olsr_cnf, OLSR_DEBUG, OLSR_FOR_ALL_LOSTIF_ENTRIES, remove_lost_interface_ip(), and interface_lost::valid_until.

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static void check_interface_updates

(

void *

)

[static]

Referenced by init_interfaces().

void destroy_interfaces

(

void

)

Definition at line 170 of file interfaces.c.

References OLSR_FOR_ALL_INTERFACES, OLSR_FOR_ALL_LOSTIF_ENTRIES, remove_interface(), and remove_lost_interface_ip().

Referenced by olsr_shutdown().

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static struct interface_lost* get_lost_interface_ip

(

union olsr_ip_addr *

ip

)

[static, read]

Definition at line 157 of file interfaces.c.

References avl_find_element, interface_lost_tree, and interface_lost::node.

Referenced by check_interface_updates(), and is_lost_interface_ip().

struct interface* if_ifwithaddr

(

const union olsr_ip_addr *

addr

)

[read]

Find the local interface with a given address.

Parameters:

addr

the address to check.

Returns:

the interface struct representing the interface that matched the address.

Definition at line 392 of file interfaces.c.

References interface::ip_addr, OLSR_FOR_ALL_INTERFACES, and olsr_ipcmp().

Referenced by BmfEncapsulationPacketReceived(), CreateBmfNetworkInterfaces(), FindNeighbors(), olsr_input(), os_init_interface(), parse_challenge(), parse_cres(), parse_rres(), process_message_neighbors(), and set_loss_link_multiplier().

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struct interface* if_ifwithindex

(

const int

if_index

)

[read]

Find the interface with a given interface index.

Parameters:

iif_index

of the interface to find.

Returns:

return the interface struct representing the interface that matched the iif_index.

Definition at line 462 of file interfaces.c.

References interface::if_index, and OLSR_FOR_ALL_INTERFACES.

Referenced by if_ifwithindex_name().

const char* if_ifwithindex_name

(

const int

if_index

)

Get an interface name for a given interface index

Parameters:

iif_index

of the interface to find.

Returns:

"" or interface name.

Definition at line 481 of file interfaces.c.

References if_ifwithindex(), and interface::int_name.

Referenced by add_del_route(), and olsr_new_netlink_route().

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struct interface* if_ifwithname

(

const char *

if_name

)

[read]

Find the interface with a given label.

Parameters:

if_name

the label of the interface to find.

Returns:

return the interface struct representing the interface that matched the label.

Definition at line 440 of file interfaces.c.

References interface::int_name, and OLSR_FOR_ALL_INTERFACES.

struct interface* if_ifwithsock

(

int

fd

)

[read]

Find the interface with a given number.

Parameters:

nr

the number of the interface to find.

Returns:

return the interface struct representing the interface that matched the number.

Definition at line 415 of file interfaces.c.

References olsr_socket_entry::fd, OLSR_FOR_ALL_INTERFACES, interface::olsr_socket, and interface::send_socket_fd.

Referenced by olsr_input(), os_recvfrom(), and os_sendto().

bool init_interfaces

(

void

)

Do initialization of various data needed for network interface management. This function also tries to set up the given interfaces.

Returns:

if more than zero interfaces were configured

Definition at line 98 of file interfaces.c.

References add_interface(), avl_comp_default, avl_init(), check_interface_updates(), generate_hello(), olsr_config::if_configs, interface_head, interface_lost_tree, list_init_head(), list_is_empty(), LOG_INTERFACE, olsr_if_config::next, olsr_config::nic_chgs_pollrate, olsr_cnf, OLSR_INFO, olsr_memcookie_add(), olsr_timer_add(), and olsr_timer_start().

Referenced by main().

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bool is_lost_interface_ip

(

union olsr_ip_addr *

ip

)

Definition at line 165 of file interfaces.c.

References get_lost_interface_ip().

Referenced by deserialize_hello().

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void lock_interface

(

struct interface *

ifp

)

Lock an interface.

Definition at line 491 of file interfaces.c.

References interface::refcount.

Referenced by add_interface(), add_link_entry(), olsr_add_route(), and olsr_update_rt_path().

void remove_interface

(

struct interface *

ifp

)

Remove and cleanup a physical interface.

Definition at line 312 of file interfaces.c.

References add_lost_interface_ip(), olsr_config::allow_no_interfaces, interface::buffer_hold_timer, olsr_socket_entry::fd, interface::hello_gen_timer, interface::hello_validity, interface::if_cfg, IFCHG_IF_REMOVE, interface::int_name, interface::int_node, olsr_if_config::interf, interface_head, interface::ip_addr, list_is_empty(), list_remove(), LOG_INTERFACE, net_remove_buffer(), olsr_cnf, olsr_delete_link_entry_by_if(), OLSR_ERROR, olsr_exit(), OLSR_INFO, interface::olsr_socket, olsr_socket_remove(), olsr_timer_stop(), os_cleanup_interface(), os_close(), run_ifchg_cbs(), interface::send_socket_fd, and unlock_interface().

Referenced by chk_if_changed(), and destroy_interfaces().

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static void remove_lost_interface_ip

(

struct interface_lost *

lost

)

[static]

Definition at line 130 of file interfaces.c.

References avl_delete(), interface_lost_tree, interface_lost::ip, LOG_INTERFACE, interface_lost::node, OLSR_DEBUG, olsr_ip_to_string(), and olsr_memcookie_free().

Referenced by check_interface_updates(), and destroy_interfaces().

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void run_ifchg_cbs	(	struct interface *	ifp,
		int	flag
	)

Definition at line 376 of file interfaces.c.

References ifchgf::function, and ifchgf::next.

Referenced by add_interface(), chk_if_changed(), and remove_interface().

void unlock_interface

(

struct interface *

ifp

)

Unlock an interface and free it if the refcount went down to zero.

Definition at line 502 of file interfaces.c.

References interface::int_name, interface::int_node, list_node_added(), olsr_memcookie_free(), and interface::refcount.

Referenced by olsr_del_route(), olsr_delete_link_entry(), olsr_delete_rt_path(), olsr_update_rt_path(), and remove_interface().

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Variable Documentation

struct olsr_timer_info* hello_gen_timerinfo = NULL [static]

Definition at line 87 of file interfaces.c.

struct ifchgf* ifchgf_list = NULL [static]

Definition at line 80 of file interfaces.c.

struct list_entity interface_head

Definition at line 69 of file interfaces.c.

Referenced by add_interface(), init_interfaces(), and remove_interface().

struct olsr_memcookie_info* interface_lost_mem_cookie = NULL [static]

Definition at line 84 of file interfaces.c.

struct avl_tree interface_lost_tree

Definition at line 72 of file interfaces.c.

Referenced by add_lost_interface_ip(), get_lost_interface_ip(), init_interfaces(), and remove_lost_interface_ip().

struct olsr_memcookie_info* interface_mem_cookie = NULL [static]

Definition at line 83 of file interfaces.c.

const char* INTERFACE_MODE_NAMES[]

Initial value:

 {
  "mesh",
  "ether"
}

Definition at line 63 of file interfaces.c.

Referenced by parse_cfg_interface().

struct olsr_timer_info* interface_poll_timerinfo = NULL [static]

Definition at line 86 of file interfaces.c.