igmp.c File Reference

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Functions
static void	igmp_send_general_query (u32 obj, void *dat)
	igmp send query (igmp_timer_function_t) More...
static void	igmp_send_state_change_group_report_v3 (u32 sw_if_index, const igmp_group_t *group)
static void	igmp_resend_state_change_group_report_v3 (u32 gi, void *data)
int	igmp_listen (vlib_main_t *vm, igmp_filter_mode_t mode, u32 sw_if_index, const ip46_address_t *saddrs, const ip46_address_t *gaddr)
	igmp listen Called by a host to request reception of multicast packets More...
static walk_rc_t	igmp_sw_if_down (vnet_main_t *vnm, u32 sw_if_index, void *ctx)
static clib_error_t *	igmp_hw_interface_link_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	igmp hardware interface link up down More...
	VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (igmp_hw_interface_link_up_down)
int	igmp_enable_disable (u32 sw_if_index, u8 enable, igmp_mode_t mode)
	IGMP interface enable/disable. More...
static clib_error_t *	igmp_init (vlib_main_t *vm)
	igmp initialization More...
	VLIB_PLUGIN_REGISTER ()

Variables
igmp_main_t	igmp_main
const static mfib_prefix_t	mpfx_general_query
const static mfib_prefix_t	mpfx_report

Function Documentation

igmp_enable_disable()

int igmp_enable_disable	(	u32	sw_if_index,
		u8	enable,
		igmp_mode_t	mode
	)

IGMP interface enable/disable.

Parameters

sw_if_index	- Interface
enable	- enable/disable
mode	- Host or router

Definition at line 340 of file igmp.c.

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igmp_hw_interface_link_up_down()

static clib_error_t* igmp_hw_interface_link_up_down ( vnet_main_t *  vnm, u32  hw_if_index, u32  flags  )

static

igmp hardware interface link up down

Parameters

vnm	- vnet main
hw_if_index	- interface hw_if_index
flags	- hw interface flags

If an interface goes down, remove its (S,G)s.

Definition at line 329 of file igmp.c.

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igmp_init()

static clib_error_t* igmp_init ( vlib_main_t *  vm )

static

igmp initialization

Parameters

vm	- vlib main

initialize igmp plugin. Initialize igmp_main, set mfib to allow igmp traffic.

Definition at line 478 of file igmp.c.

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igmp_listen()

int igmp_listen	(	vlib_main_t *	vm,
		igmp_filter_mode_t	filter,
		u32	sw_if_index,
		const ip46_address_t *	saddr,
		const ip46_address_t *	gaddr
	)

igmp listen Called by a host to request reception of multicast packets

Parameters

vm	- vlib main
filter	- Filter mode
sw_if_index	- interface sw_if_index
saddr	- source address
gaddr	- group address

Add/del (S,G) on an interface. send a status change report from the interface.

Definition at line 133 of file igmp.c.

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igmp_resend_state_change_group_report_v3()

static void igmp_resend_state_change_group_report_v3 ( u32  gi, void *  data  )

static

Definition at line 112 of file igmp.c.

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igmp_send_general_query()

static void igmp_send_general_query ( u32  obj, void *  dat  )

static

igmp send query (igmp_timer_function_t)

Send an igmp query. If the timer holds group key, send Group-Specific query, else send General query.

Definition at line 70 of file igmp.c.

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igmp_send_state_change_group_report_v3()

static void igmp_send_state_change_group_report_v3 ( u32  sw_if_index, const igmp_group_t *  group  )

static

Definition at line 97 of file igmp.c.

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igmp_sw_if_down()

static walk_rc_t igmp_sw_if_down ( vnet_main_t *  vnm, u32  sw_if_index, void *  ctx  )

static

Definition at line 307 of file igmp.c.

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VLIB_PLUGIN_REGISTER()

VLIB_PLUGIN_REGISTER

(

)

VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION()

VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION

(

igmp_hw_interface_link_up_down

)

Variable Documentation

igmp_main

igmp_main_t igmp_main

Definition at line 36 of file igmp.c.

mpfx_general_query

const static mfib_prefix_t mpfx_general_query

static

Initial value:

= {
  .fp_proto = FIB_PROTOCOL_IP4,
  .fp_len = 32,
  .fp_grp_addr = {
    .ip4 = {
      .as_u32 = IGMP_GENERAL_QUERY_ADDRESS,
    },
  },
}

Definition at line 40 of file igmp.c.

mpfx_report

const static mfib_prefix_t mpfx_report

static

Initial value:

= {
  .fp_proto = FIB_PROTOCOL_IP4,
  .fp_len = 32,
  .fp_grp_addr = {
    .ip4 = {
      .as_u32 = IGMP_MEMBERSHIP_REPORT_ADDRESS,
    },
  },
}

Definition at line 51 of file igmp.c.