ip6_ra.c File Reference

IPv6 Router Advertisements. More...

Include dependency graph for ip6_ra.c:

Go to the source code of this file.

Data Structures
struct	ip6_radv_prefix_t
struct	ip6_ra_t_

Macros
#define	DEF_MAX_RADV_INTERVAL   200
#define	DEF_MIN_RADV_INTERVAL   .75 * DEF_MAX_RADV_INTERVAL
#define	DEF_CURR_HOP_LIMIT   64
#define	DEF_DEF_RTR_LIFETIME   3 * DEF_MAX_RADV_INTERVAL
#define	MAX_DEF_RTR_LIFETIME   9000
#define	MAX_INITIAL_RTR_ADVERT_INTERVAL   16 /* seconds */
#define	MAX_INITIAL_RTR_ADVERTISEMENTS   3 /*transmissions */
#define	MIN_DELAY_BETWEEN_RAS   3 /* seconds */
#define	MAX_DELAY_BETWEEN_RAS   1800 /* seconds */
#define	MAX_RA_DELAY_TIME   .5 /* seconds */
#define	MIN_ADV_VALID_LIFETIME   7203 /* seconds */
#define	DEF_ADV_VALID_LIFETIME   2592000
#define	DEF_ADV_PREF_LIFETIME   604800
#define	foreach_log_level

Typedefs
typedef struct ip6_ra_t_	ip6_ra_t

Enumerations
enum	log_level_t { foreach_log_level }
enum	icmp6_router_solicitation_or_advertisement_next_t { ICMP6_ROUTER_SOLICITATION_NEXT_DROP, ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW, ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX, ICMP6_ROUTER_SOLICITATION_N_NEXT }

Functions
typedef	CLIB_PACKED (struct { ip6_header_t ip;icmp6_neighbor_discovery_header_t neighbor;icmp6_neighbor_discovery_ethernet_link_layer_address_option_t link_layer_option;})
static int	ip6_ra_publish (ip6_ra_report_t *r)
void	ip6_ra_report_register (ip6_ra_report_notify_t fn)
void	ip6_ra_report_unregister (ip6_ra_report_notify_t fn)
static ip6_ra_t *	ip6_ra_get_itf (u32 sw_if_index)
static void	ip6_neighbor_syslog (vlib_main_t *vm, int priority, char *fmt,...)
static_always_inline uword	icmp6_router_solicitation (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static_always_inline uword	icmp6_router_advertisement (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static f64	random_f64_from_to (f64 from, f64 to)
static u8	get_mac_address (u32 sw_if_index, u8 *address)
static vlib_buffer_t *	create_buffer_for_rs (vlib_main_t *vm, ip6_ra_t *radv_info)
static void	stop_sending_rs (vlib_main_t *vm, ip6_ra_t *ra)
static bool	check_send_rs (vlib_main_t *vm, ip6_ra_t *radv_info, f64 current_time, f64 *due_time)
static uword	send_rs_process (vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f0)
void	icmp6_send_router_solicitation (vlib_main_t *vm, u32 sw_if_index, u8 stop, const icmp6_send_router_solicitation_params_t *params)
static const ethernet_interface_t *	ip6_ra_get_eth_itf (u32 sw_if_index)
static void	ip6_ra_link_enable (u32 sw_if_index)
	called when IP6 is enabled on an interface create and initialize router advertisement parameters with default values for this intfc More...
static void	ip6_ra_delegate_disable (index_t rai)
void	ip6_ra_update_secondary_radv_info (ip6_address_t *address, u8 prefix_len, u32 primary_sw_if_index, u32 valid_time, u32 preferred_time)
static uword	ip6_ra_process_timer_event (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static void	ip6_ra_handle_report (ip6_ra_report_t *rap)
static uword	ip6_ra_event_process (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static void	ip6_ra_signal_report (ip6_ra_report_t *r)
int	ip6_ra_config (vlib_main_t *vm, u32 sw_if_index, u8 suppress, u8 managed, u8 other, u8 ll_option, u8 send_unicast, u8 cease, u8 use_lifetime, u32 lifetime, u32 initial_count, u32 initial_interval, u32 max_interval, u32 min_interval, u8 is_no)
int	ip6_ra_prefix (vlib_main_t *vm, u32 sw_if_index, ip6_address_t *prefix_addr, u8 prefix_len, u8 use_default, u32 val_lifetime, u32 pref_lifetime, u8 no_advertise, u8 off_link, u8 no_autoconfig, u8 no_onlink, u8 is_no)
clib_error_t *	ip6_ra_cmd (vlib_main_t *vm, unformat_input_t *main_input, vlib_cli_command_t *cmd)
static u8 *	format_ip6_ra (u8 *s, va_list *args)
static clib_error_t *	ip6_ra_init (vlib_main_t *vm)

Variables
	icmp6_router_advertisement_packet_t
static ip6_link_delegate_id_t	ip6_ra_delegate_id
static ip6_ra_t *	ip6_ra_pool
static ip6_ra_report_notify_t *	ip6_ra_listeners
static char *	log_level_strings []
static int	logmask = 1 << LOG_DEBUG
static vlib_node_registration_t	ip6_icmp_router_solicitation_node
	(constructor) VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node) More...
static vlib_node_registration_t	ip6_icmp_router_advertisement_node
	(constructor) VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node) More...
vlib_node_registration_t	ip6_rs_process_node
	(constructor) VLIB_REGISTER_NODE (ip6_rs_process_node) More...
vlib_node_registration_t	ip6_ra_process_node
	(constructor) VLIB_REGISTER_NODE (ip6_ra_process_node) More...
static vlib_cli_command_t	ip6_nd_command
	(constructor) VLIB_CLI_COMMAND (ip6_nd_command) More...
const static ip6_link_delegate_vft_t	ip6_ra_delegate_vft
	VFT for registering as a delegate to an IP6 link. More...

Detailed Description

IPv6 Router Advertisements.

The files contains the API and CLI code for managing IPv6 RAs

Definition in file ip6_ra.c.

Macro Definition Documentation

DEF_ADV_PREF_LIFETIME

#define DEF_ADV_PREF_LIFETIME   604800

Definition at line 90 of file ip6_ra.c.

DEF_ADV_VALID_LIFETIME

#define DEF_ADV_VALID_LIFETIME   2592000

Definition at line 89 of file ip6_ra.c.

DEF_CURR_HOP_LIMIT

#define DEF_CURR_HOP_LIMIT   64

Definition at line 58 of file ip6_ra.c.

DEF_DEF_RTR_LIFETIME

#define DEF_DEF_RTR_LIFETIME   3 * DEF_MAX_RADV_INTERVAL

Definition at line 59 of file ip6_ra.c.

DEF_MAX_RADV_INTERVAL

#define DEF_MAX_RADV_INTERVAL   200

Definition at line 56 of file ip6_ra.c.

DEF_MIN_RADV_INTERVAL

#define DEF_MIN_RADV_INTERVAL   .75 * DEF_MAX_RADV_INTERVAL

Definition at line 57 of file ip6_ra.c.

foreach_log_level

#define foreach_log_level

Value:

  _ (DEBUG, "DEBUG")                 \
  _ (INFO, "INFORMATION")            \
  _ (NOTICE, "NOTICE")               \
  _ (WARNING, "WARNING")             \
  _ (ERR, "ERROR")                   \
  _ (CRIT, "CRITICAL")               \
  _ (ALERT, "ALERT")                 \
  _ (EMERG,  "EMERGENCY")

Definition at line 208 of file ip6_ra.c.

MAX_DEF_RTR_LIFETIME

#define MAX_DEF_RTR_LIFETIME   9000

Definition at line 60 of file ip6_ra.c.

MAX_DELAY_BETWEEN_RAS

#define MAX_DELAY_BETWEEN_RAS   1800 /* seconds */

Definition at line 65 of file ip6_ra.c.

MAX_INITIAL_RTR_ADVERT_INTERVAL

#define MAX_INITIAL_RTR_ADVERT_INTERVAL   16 /* seconds */

Definition at line 62 of file ip6_ra.c.

MAX_INITIAL_RTR_ADVERTISEMENTS

#define MAX_INITIAL_RTR_ADVERTISEMENTS   3 /*transmissions */

Definition at line 63 of file ip6_ra.c.

MAX_RA_DELAY_TIME

#define MAX_RA_DELAY_TIME   .5 /* seconds */

Definition at line 66 of file ip6_ra.c.

MIN_ADV_VALID_LIFETIME

#define MIN_ADV_VALID_LIFETIME   7203 /* seconds */

Definition at line 88 of file ip6_ra.c.

MIN_DELAY_BETWEEN_RAS

#define MIN_DELAY_BETWEEN_RAS   3 /* seconds */

Definition at line 64 of file ip6_ra.c.

Typedef Documentation

ip6_ra_t

typedef struct ip6_ra_t_ ip6_ra_t

Enumeration Type Documentation

icmp6_router_solicitation_or_advertisement_next_t

enum icmp6_router_solicitation_or_advertisement_next_t

Enumerator
ICMP6_ROUTER_SOLICITATION_NEXT_DROP
ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW
ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX
ICMP6_ROUTER_SOLICITATION_N_NEXT

Definition at line 265 of file ip6_ra.c.

log_level_t

enum log_level_t

Enumerator
foreach_log_level

Definition at line 218 of file ip6_ra.c.

Function Documentation

check_send_rs()

static bool check_send_rs ( vlib_main_t *  vm, ip6_ra_t *  radv_info, f64  current_time, f64 *  due_time  )

inlinestatic

Definition at line 1198 of file ip6_ra.c.

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CLIB_PACKED()

typedef CLIB_PACKED

(

struct { ip6_header_t ip;icmp6_neighbor_discovery_header_t neighbor;icmp6_neighbor_discovery_ethernet_link_layer_address_option_t link_layer_option;}

)

Definition at line 35 of file ip6_ra.c.

create_buffer_for_rs()

static vlib_buffer_t* create_buffer_for_rs ( vlib_main_t *  vm, ip6_ra_t *  radv_info  )

inlinestatic

Definition at line 1117 of file ip6_ra.c.

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format_ip6_ra()

static u8* format_ip6_ra ( u8 *  s, va_list *  args  )

static

Definition at line 2107 of file ip6_ra.c.

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get_mac_address()

static u8 get_mac_address ( u32  sw_if_index, u8 *  address  )

inlinestatic

Definition at line 1106 of file ip6_ra.c.

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icmp6_router_advertisement()

static_always_inline uword icmp6_router_advertisement	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 721 of file ip6_ra.c.

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icmp6_router_solicitation()

static_always_inline uword icmp6_router_solicitation	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 274 of file ip6_ra.c.

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icmp6_send_router_solicitation()

void icmp6_send_router_solicitation	(	vlib_main_t *	vm,
		u32	sw_if_index,
		u8	stop,
		const icmp6_send_router_solicitation_params_t *	params
	)

Definition at line 1307 of file ip6_ra.c.

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ip6_neighbor_syslog()

static void ip6_neighbor_syslog ( vlib_main_t *  vm, int  priority, char *  fmt,   ...  )

static

Definition at line 234 of file ip6_ra.c.

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ip6_ra_cmd()

clib_error_t* ip6_ra_cmd	(	vlib_main_t *	vm,
		unformat_input_t *	main_input,
		vlib_cli_command_t *	cmd
	)

Definition at line 1907 of file ip6_ra.c.

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ip6_ra_config()

int ip6_ra_config	(	vlib_main_t *	vm,
		u32	sw_if_index,
		u8	suppress,
		u8	managed,
		u8	other,
		u8	ll_option,
		u8	send_unicast,
		u8	cease,
		u8	use_lifetime,
		u32	lifetime,
		u32	initial_count,
		u32	initial_interval,
		u32	max_interval,
		u32	min_interval,
		u8	is_no
	)

Definition at line 1687 of file ip6_ra.c.

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ip6_ra_delegate_disable()

static void ip6_ra_delegate_disable ( index_t  rai )

static

Definition at line 1407 of file ip6_ra.c.

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ip6_ra_event_process()

static uword ip6_ra_event_process ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1618 of file ip6_ra.c.

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ip6_ra_get_eth_itf()

static const ethernet_interface_t* ip6_ra_get_eth_itf ( u32  sw_if_index )

static

Definition at line 1339 of file ip6_ra.c.

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ip6_ra_get_itf()

static ip6_ra_t* ip6_ra_get_itf ( u32  sw_if_index )

inlinestatic

Definition at line 195 of file ip6_ra.c.

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ip6_ra_handle_report()

static void ip6_ra_handle_report ( ip6_ra_report_t *  rap )

static

Definition at line 1608 of file ip6_ra.c.

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ip6_ra_init()

static clib_error_t* ip6_ra_init ( vlib_main_t *  vm )

static

Definition at line 2308 of file ip6_ra.c.

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ip6_ra_link_enable()

static void ip6_ra_link_enable ( u32  sw_if_index )

static

called when IP6 is enabled on an interface create and initialize router advertisement parameters with default values for this intfc

Definition at line 1357 of file ip6_ra.c.

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ip6_ra_prefix()

int ip6_ra_prefix	(	vlib_main_t *	vm,
		u32	sw_if_index,
		ip6_address_t *	prefix_addr,
		u8	prefix_len,
		u8	use_default,
		u32	val_lifetime,
		u32	pref_lifetime,
		u8	no_advertise,
		u8	off_link,
		u8	no_autoconfig,
		u8	no_onlink,
		u8	is_no
	)

Definition at line 1781 of file ip6_ra.c.

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ip6_ra_process_timer_event()

static uword ip6_ra_process_timer_event ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 1491 of file ip6_ra.c.

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ip6_ra_publish()

static int ip6_ra_publish ( ip6_ra_report_t *  r )

static

Definition at line 1678 of file ip6_ra.c.

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ip6_ra_report_register()

void ip6_ra_report_register

(

ip6_ra_report_notify_t

fn

)

Definition at line 167 of file ip6_ra.c.

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ip6_ra_report_unregister()

void ip6_ra_report_unregister

(

ip6_ra_report_notify_t

fn

)

Definition at line 180 of file ip6_ra.c.

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ip6_ra_signal_report()

static void ip6_ra_signal_report ( ip6_ra_report_t *  r )

static

Definition at line 1663 of file ip6_ra.c.

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ip6_ra_update_secondary_radv_info()

void ip6_ra_update_secondary_radv_info	(	ip6_address_t *	address,
		u8	prefix_len,
		u32	primary_sw_if_index,
		u32	valid_time,
		u32	preferred_time
	)

Definition at line 1430 of file ip6_ra.c.

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random_f64_from_to()

static f64 random_f64_from_to ( f64  from, f64  to  )

inlinestatic

Definition at line 1093 of file ip6_ra.c.

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send_rs_process()

static uword send_rs_process ( vlib_main_t *  vm, vlib_node_runtime_t *  rt, vlib_frame_t *  f0  )

static

Definition at line 1260 of file ip6_ra.c.

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stop_sending_rs()

static void stop_sending_rs ( vlib_main_t *  vm, ip6_ra_t *  ra  )

inlinestatic

Definition at line 1184 of file ip6_ra.c.

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Variable Documentation

icmp6_router_advertisement_packet_t

icmp6_router_advertisement_packet_t

Definition at line 53 of file ip6_ra.c.

ip6_icmp_router_advertisement_node

vlib_node_registration_t ip6_icmp_router_advertisement_node

static

Initial value:

=
{
  .function = icmp6_router_advertisement,
  .name = "icmp6-router-advertisement",
 
  .vector_size = sizeof (u32),
 
  .format_trace = format_icmp6_input_trace,
 
  .n_next_nodes = 1,
  .next_nodes = {
    [0] = "ip6-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node)

Definition at line 1076 of file ip6_ra.c.

ip6_icmp_router_solicitation_node

vlib_node_registration_t ip6_icmp_router_solicitation_node

static

Initial value:

=
{
  .function = icmp6_router_solicitation,
  .name = "icmp6-router-solicitation",
 
  .vector_size = sizeof (u32),
 
  .format_trace = format_icmp6_input_trace,
 
  .n_next_nodes = ICMP6_ROUTER_SOLICITATION_N_NEXT,
  .next_nodes = {
    [ICMP6_ROUTER_SOLICITATION_NEXT_DROP] = "ip6-drop",
    [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW] = "ip6-rewrite-mcast",
    [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX] = "interface-output",
  },
}

(constructor) VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node)

Definition at line 701 of file ip6_ra.c.

ip6_nd_command

vlib_cli_command_t ip6_nd_command

static

Initial value:

=
{
  .path = "ip6 nd",
  .short_help = "ip6 nd <interface> ...",
  .function = ip6_ra_cmd,
}

(constructor) VLIB_CLI_COMMAND (ip6_nd_command)

Definition at line 2290 of file ip6_ra.c.

ip6_ra_delegate_id

ip6_link_delegate_id_t ip6_ra_delegate_id

static

Definition at line 157 of file ip6_ra.c.

ip6_ra_delegate_vft

const static ip6_link_delegate_vft_t ip6_ra_delegate_vft

static

Initial value:

= {
  .ildv_disable = ip6_ra_delegate_disable,
  .ildv_enable = ip6_ra_link_enable,
  .ildv_format = format_ip6_ra,
}

VFT for registering as a delegate to an IP6 link.

Definition at line 2301 of file ip6_ra.c.

ip6_ra_listeners

ip6_ra_report_notify_t* ip6_ra_listeners

static

Definition at line 162 of file ip6_ra.c.

ip6_ra_pool

ip6_ra_t* ip6_ra_pool

static

Definition at line 158 of file ip6_ra.c.

ip6_ra_process_node

vlib_node_registration_t ip6_ra_process_node

Initial value:

=
{
 .function = ip6_ra_event_process,
 .name = "ip6-ra-process",
 .type = VLIB_NODE_TYPE_PROCESS,
}

(constructor) VLIB_REGISTER_NODE (ip6_ra_process_node)

Definition at line 1654 of file ip6_ra.c.

ip6_rs_process_node

vlib_node_registration_t ip6_rs_process_node

Initial value:

= {
    .function = send_rs_process,
    .type = VLIB_NODE_TYPE_PROCESS,
    .name = "ip6-rs-process",
}

(constructor) VLIB_REGISTER_NODE (ip6_rs_process_node)

Definition at line 1299 of file ip6_ra.c.

log_level_strings

char* log_level_strings[]

static

Initial value:

= {
#define _(f,s) 
  foreach_log_level
 
}

Definition at line 225 of file ip6_ra.c.

logmask

int logmask = 1 << LOG_DEBUG

static

Definition at line 231 of file ip6_ra.c.