sr_mpls_policy.c File Reference

SR MPLS policy creation and application. More...

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Functions
static mpls_sr_sl_t *	create_sl (mpls_sr_policy_t *sr_policy, mpls_label_t *sl, u32 weight)
	Creates a Segment List and adds it to an SR policy. More...
int	sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t *segments, u8 behavior, u32 weight)
	Create a new SR policy. More...
int	sr_mpls_policy_del (mpls_label_t bsid)
	Delete a SR policy. More...
int	sr_mpls_policy_mod (mpls_label_t bsid, u8 operation, mpls_label_t *segments, u32 sl_index, u32 weight)
	Modify an existing SR policy. More...
static clib_error_t *	sr_mpls_policy_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	CLI for 'sr mpls policies' command family. More...
static clib_error_t *	show_sr_mpls_policies_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	CLI to display onscreen all the SR MPLS policies. More...
int	sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid, ip46_address_t *endpoint, u8 endpoint_type, u32 color)
	Update the Endpoint,Color tuple of an SR policy. More...
static clib_error_t *	cli_sr_mpls_policy_ec_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	CLI to modify the Endpoint,Color of an SR policy. More...
clib_error_t *	sr_mpls_policy_rewrite_init (vlib_main_t *vm)
	SR MPLS Policy initialization. More...

Variables
mpls_sr_main_t	sr_mpls_main
static vlib_cli_command_t	sr_mpls_policy_command
	(constructor) VLIB_CLI_COMMAND (sr_mpls_policy_command) More...
static vlib_cli_command_t	show_sr_mpls_policies_command
	(constructor) VLIB_CLI_COMMAND (show_sr_mpls_policies_command) More...
static vlib_cli_command_t	cli_sr_mpls_policy_ec_command
	(constructor) VLIB_CLI_COMMAND (cli_sr_mpls_policy_ec_command) More...

Detailed Description

SR MPLS policy creation and application.

Create an SR policy. An SR policy can be either of 'default' type or 'spray' type An SR policy has attached a list of SID lists. In case the SR policy is a default one it will load balance among them. An SR policy has associated a BindingSID. In case any packet arrives with MPLS_label == BindingSID then the SR policy associated to such bindingSID will be applied to such packet. Also, a BSID can be associated with a (Next-Hop, Color)

Definition in file sr_mpls_policy.c.

Function Documentation

cli_sr_mpls_policy_ec_command_fn()

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

static

CLI to modify the Endpoint,Color of an SR policy.

Definition at line 834 of file sr_mpls_policy.c.

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create_sl()

static mpls_sr_sl_t* create_sl ( mpls_sr_policy_t *  sr_policy, mpls_label_t *  sl, u32  weight  )

inlinestatic

Creates a Segment List and adds it to an SR policy.

Creates a Segment List and adds it to the SR policy. Notice that the SL are not necessarily unique. Hence there might be two Segment List within the same SR Policy with exactly the same segments and same weight.

Parameters

sr_policy	is the SR policy where the SL will be added
sl	is a vector of IPv6 addresses composing the Segment List
weight	is the weight of the SegmentList (for load-balancing purposes)
is_encap	represents the mode (SRH insertion vs Encapsulation)

Returns

pointer to the just created segment list

Definition at line 60 of file sr_mpls_policy.c.

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show_sr_mpls_policies_command_fn()

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

static

CLI to display onscreen all the SR MPLS policies.

Definition at line 586 of file sr_mpls_policy.c.

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sr_mpls_policy_add()

int sr_mpls_policy_add	(	mpls_label_t	bsid,
		mpls_label_t *	segments,
		u8	behavior,
		u32	weight
	)

Create a new SR policy.

Parameters

bsid	is the bindingSID of the SR Policy
segments	is a vector of MPLS labels composing the segment list
behavior	is the behavior of the SR policy. (default//spray)
fib_table	is the VRF where to install the FIB entry for the BSID
weight	is the weight of this specific SID list

Returns

0 if correct, else error

Definition at line 152 of file sr_mpls_policy.c.

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sr_mpls_policy_assign_endpoint_color()

int sr_mpls_policy_assign_endpoint_color	(	mpls_label_t	bsid,
		ip46_address_t *	endpoint,
		u8	endpoint_type,
		u32	color
	)

Update the Endpoint,Color tuple of an SR policy.

Parameters

bsid	is the bindingSID of the SR Policy
endpoint	represents the IP46 of the endpoint
color	represents the color (u32)

To reset to NULL use ~0 as parameters.

Returns

0 if correct, else error

Definition at line 671 of file sr_mpls_policy.c.

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sr_mpls_policy_command_fn()

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

static

CLI for 'sr mpls policies' command family.

Definition at line 463 of file sr_mpls_policy.c.

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sr_mpls_policy_del()

int sr_mpls_policy_del

(

mpls_label_t

bsid

)

Delete a SR policy.

Parameters

bsid	is the bindingSID of the SR Policy
index	is the index of the SR policy

Returns

0 if correct, else error

Definition at line 207 of file sr_mpls_policy.c.

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sr_mpls_policy_mod()

int sr_mpls_policy_mod	(	mpls_label_t	bsid,
		u8	operation,
		mpls_label_t *	segments,
		u32	sl_index,
		u32	weight
	)

Modify an existing SR policy.

The possible modifications are adding a new Segment List, modifying an existing Segment List (modify the weight only) and delete a given Segment List from the SR Policy.

Parameters

bsid	is the bindingSID of the SR Policy
fib_table	is the VRF where to install the FIB entry for the BSID
operation	is the operation to perform (among the top ones)
segments	is a vector of IPv6 address composing the segment list
sl_index	is the index of the Segment List to modify/delete
weight	is the weight of the sid list. optional.

Returns

0 ok, >0 index of SL, <0 error

Definition at line 299 of file sr_mpls_policy.c.

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sr_mpls_policy_rewrite_init()

clib_error_t* sr_mpls_policy_rewrite_init

(

vlib_main_t *

vm

)

SR MPLS Policy initialization.

Definition at line 905 of file sr_mpls_policy.c.

Variable Documentation

cli_sr_mpls_policy_ec_command

vlib_cli_command_t cli_sr_mpls_policy_ec_command

static

Initial value:

=
{
        .path = "sr mpls policy te",
                .short_help = "sr mpls policy te bsid xxxxx endpoint x.x.x.x color 12341234",
                .function = cli_sr_mpls_policy_ec_command_fn,
}

(constructor) VLIB_CLI_COMMAND (cli_sr_mpls_policy_ec_command)

Definition at line 892 of file sr_mpls_policy.c.

show_sr_mpls_policies_command

vlib_cli_command_t show_sr_mpls_policies_command

static

Initial value:

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

(constructor) VLIB_CLI_COMMAND (show_sr_mpls_policies_command)

Definition at line 651 of file sr_mpls_policy.c.

sr_mpls_main

mpls_sr_main_t sr_mpls_main

Definition at line 42 of file sr_mpls_policy.c.

sr_mpls_policy_command

vlib_cli_command_t sr_mpls_policy_command

static

Initial value:

=
{
        .path = "sr mpls policy",
                .short_help = "sr mpls policy [add||del||mod] bsid 2999 "
                "next 10 next 20 next 30 (weight 1) (spray)",
                .long_help = "TBD.\n",
                .function = sr_mpls_policy_command_fn,
}

(constructor) VLIB_CLI_COMMAND (sr_mpls_policy_command)

Definition at line 572 of file sr_mpls_policy.c.