sr_mpls_steering.c File Reference

Packet steering into SR-MPLS Policies. More...

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Macros
#define	SRMPLS_TE_OFFSET   50

Functions
int	sort_color_descent (const u32 *x, u32 *y)
	function to sort the colors in descending order More...
u32	find_or_create_internal_label (ip46_address_t endpoint, u32 color)
	find the corresponding label for (endpoint, color) and lock it endpoint might be NULL or ANY NULL = 0, ANY=~0 More...
static void	internal_label_lock_co (ip46_address_t endpoint, u32 color, char co_bits)
void	internal_label_lock (ip46_address_t endpoint, u32 color)
	lock the label for (NH, C) endpoint might be NULL or ANY NULL = 0, ANY=~0 More...
static void	internal_label_unlock_co (ip46_address_t endpoint, u32 color, char co_bits)
void	internal_label_unlock (ip46_address_t endpoint, u32 color)
	Release lock on label for (endpoint, color) endpoint might be NULL or ANY NULL = 0, ANY=~0. More...
void	compute_sr_te_automated_steering_fib_entry (mpls_sr_steering_policy_t *steer_pl)
	function to update the FIB More...
int	sr_mpls_steering_policy_add (mpls_label_t bsid, u32 table_id, ip46_address_t *prefix, u32 mask_width, u8 traffic_type, ip46_address_t *next_hop, u8 nh_type, u32 color, char co_bits, mpls_label_t vpn_label)
	Steer traffic L3 traffic through a given SR-MPLS policy. More...
int	sr_mpls_steering_policy_del (ip46_address_t *prefix, u32 mask_width, u8 traffic_type, u32 table_id, u32 color)
	Delete steering rule for an SR-MPLS policy. More...
static clib_error_t *	sr_mpls_steer_policy_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static clib_error_t *	show_sr_mpls_steering_policies_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
clib_error_t *	sr_mpls_steering_init (vlib_main_t *vm)

Variables
static vlib_cli_command_t	sr_mpls_steer_policy_command
	(constructor) VLIB_CLI_COMMAND (sr_mpls_steer_policy_command) More...
static vlib_cli_command_t	show_sr_mpls_steering_policies_command
	(constructor) VLIB_CLI_COMMAND (show_sr_mpls_steering_policies_command) More...

Detailed Description

Packet steering into SR-MPLS Policies.

This file is in charge of handling the FIB appropiatly to steer packets through SR Policies as defined in 'sr_mpls_policy.c'. Notice that here we are only doing steering. SR policy application is done in sr_policy_rewrite.c

Supports:

• Steering of IPv6 traffic Destination Address based through BSID
• Steering of IPv4 traffic Destination Address based through BSID
• Steering of IPv4 and IPv6 traffic through N,C (SR CP)

Definition in file sr_mpls_steering.c.

Macro Definition Documentation

SRMPLS_TE_OFFSET

#define SRMPLS_TE_OFFSET   50

Definition at line 42 of file sr_mpls_steering.c.

Function Documentation

compute_sr_te_automated_steering_fib_entry()

void compute_sr_te_automated_steering_fib_entry

(

mpls_sr_steering_policy_t *

steer_pl

)

function to update the FIB

Definition at line 225 of file sr_mpls_steering.c.

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find_or_create_internal_label()

u32 find_or_create_internal_label	(	ip46_address_t	endpoint,
		u32	color
	)

find the corresponding label for (endpoint, color) and lock it endpoint might be NULL or ANY NULL = 0, ANY=~0

Definition at line 60 of file sr_mpls_steering.c.

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internal_label_lock()

void internal_label_lock	(	ip46_address_t	endpoint,
		u32	color
	)

lock the label for (NH, C) endpoint might be NULL or ANY NULL = 0, ANY=~0

Definition at line 125 of file sr_mpls_steering.c.

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internal_label_lock_co()

static void internal_label_lock_co ( ip46_address_t  endpoint, u32  color, char  co_bits  )

inlinestatic

Definition at line 96 of file sr_mpls_steering.c.

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internal_label_unlock()

void internal_label_unlock	(	ip46_address_t	endpoint,
		u32	color
	)

Release lock on label for (endpoint, color) endpoint might be NULL or ANY NULL = 0, ANY=~0.

Definition at line 179 of file sr_mpls_steering.c.

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internal_label_unlock_co()

static void internal_label_unlock_co ( ip46_address_t  endpoint, u32  color, char  co_bits  )

inlinestatic

Definition at line 150 of file sr_mpls_steering.c.

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show_sr_mpls_steering_policies_command_fn()

static clib_error_t* show_sr_mpls_steering_policies_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 791 of file sr_mpls_steering.c.

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sort_color_descent()

int sort_color_descent	(	const u32 *	x,
		u32 *	y
	)

function to sort the colors in descending order

Definition at line 48 of file sr_mpls_steering.c.

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sr_mpls_steer_policy_command_fn()

static clib_error_t* sr_mpls_steer_policy_command_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 660 of file sr_mpls_steering.c.

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sr_mpls_steering_init()

clib_error_t* sr_mpls_steering_init

(

vlib_main_t *

vm

)

Definition at line 884 of file sr_mpls_steering.c.

sr_mpls_steering_policy_add()

int sr_mpls_steering_policy_add	(	mpls_label_t	bsid,
		u32	table_id,
		ip46_address_t *	prefix,
		u32	mask_width,
		u8	traffic_type,
		ip46_address_t *	next_hop,
		u8	nh_type,
		u32	color,
		char	co_bits,
		mpls_label_t	vpn_label
	)

Steer traffic L3 traffic through a given SR-MPLS policy.

Parameters

is_del
bsid	is the bindingSID of the SR Policy (alt to sr_policy_index)
sr_policy	is the index of the SR Policy (alt to bsid)
table_id	is the VRF where to install the FIB entry for the BSID
prefix	is the IPv4/v6 address for L3 traffic type
mask_width	is the mask for L3 traffic type
traffic_type	describes the type of traffic
next_hop	SR TE Next-Hop
nh_type	is the AF of Next-Hop
color	SR TE color
co_bits	SR TE color-only bits

Returns

0 if correct, else error

Definition at line 380 of file sr_mpls_steering.c.

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sr_mpls_steering_policy_del()

int sr_mpls_steering_policy_del	(	ip46_address_t *	prefix,
		u32	mask_width,
		u8	traffic_type,
		u32	table_id,
		u32	color
	)

Delete steering rule for an SR-MPLS policy.

Parameters

is_del
bsid	is the bindingSID of the SR Policy (alt to sr_policy_index)
sr_policy	is the index of the SR Policy (alt to bsid)
table_id	is the VRF where to install the FIB entry for the BSID
prefix	is the IPv4/v6 address for L3 traffic type
mask_width	is the mask for L3 traffic type
traffic_type	describes the type of traffic
next_hop	SR TE Next-HOP
nh_type	is the AF of Next-Hop
color	SR TE color

Returns

0 if correct, else error

Definition at line 547 of file sr_mpls_steering.c.

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Variable Documentation

show_sr_mpls_steering_policies_command

vlib_cli_command_t show_sr_mpls_steering_policies_command

static

Initial value:

=
{
  .path = "show sr mpls steering policies",
    .short_help = "show sr mpls steering policies",
    .function = show_sr_mpls_steering_policies_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_sr_mpls_steering_policies_command)

Definition at line 875 of file sr_mpls_steering.c.

sr_mpls_steer_policy_command

vlib_cli_command_t sr_mpls_steer_policy_command

static

Initial value:

=
{
  .path = "sr mpls steer",
    .short_help = "sr mpls steer (del) l3 <ip_addr/mask> "
    "via [sr policy bsid <mpls_label> || next-hop <ip46_addr> color <u32> co <0|1|2|3> ](fib-table <fib_table_index>)(vpn-label 500)",
    .long_help =
    "\tSteer L3 traffic through an existing SR policy.\n"
    "\tExamples:\n"
    "\t\tsr steer l3 2001::/64 via sr_policy bsid 29999\n"
    "\t\tsr steer del l3 2001::/64 via sr_policy bsid 29999\n"
    "\t\tsr steer l3 2001::/64 via next-hop 1.1.1.1 color 1234 co 0\n"
    "\t\tsr steer l3 2001::/64 via next-hop 2001::1 color 1234 co 2 vpn-label 500\n",
    .function = sr_mpls_steer_policy_command_fn,
}

(constructor) VLIB_CLI_COMMAND (sr_mpls_steer_policy_command)

Definition at line 774 of file sr_mpls_steering.c.