sr_localsid.c File Reference

Processing of packets with a SRH. More...

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Data Structures
struct	sr_localsid_trace_t
	SR localsid node trace. More...

Macros
#define	foreach_sr_localsid_error
#define	foreach_sr_localsid_next

Enumerations
enum	sr_localsid_error_t { SR_LOCALSID_N_ERROR }
enum	sr_localsid_next_t { SR_LOCALSID_N_NEXT }

Functions
static void	sr_localsid_key_create (sr_localsid_key_t *key, ip6_address_t *addr, u16 pref_len)
int	sr_cli_localsid (char is_del, ip6_address_t *localsid_addr, u16 localsid_prefix_len, char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table, ip46_address_t *nh_addr, int usid_len, void *ls_plugin_mem)
	SR localsid add/del. More...
static clib_error_t *	sr_cli_localsid_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	SR LocalSID CLI function. More...
static clib_error_t *	show_sr_localsid_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	CLI function to 'show' all SR LocalSIDs on console. More...
static clib_error_t *	clear_sr_localsid_counters_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	Function to 'clear' ALL SR localsid counters. More...
u8 *	format_sr_localsid_trace (u8 *s, va_list *args)
	SR LocalSID graph node trace function. More...
static_always_inline void	end_srh_processing (vlib_node_runtime_t *node, vlib_buffer_t *b0, ip6_header_t *ip0, ip6_sr_header_t *sr0, ip6_sr_localsid_t *ls0, u32 *next0, u8 psp, ip6_ext_header_t *prev0)
	Function doing End processing. More...
static_always_inline void	end_un_srh_processing (vlib_node_runtime_t *node, vlib_buffer_t *b0, ip6_header_t *ip0, ip6_sr_header_t *sr0, ip6_sr_localsid_t *ls0, u32 *next0, u8 psp, ip6_ext_header_t *prev0)
	Function doing End uN processing. More...
static_always_inline void	end_un_processing (ip6_header_t *ip0, ip6_sr_localsid_t *ls0)
static_always_inline void	end_decaps_srh_processing (vlib_node_runtime_t *node, vlib_buffer_t *b0, ip6_header_t *ip0, ip6_sr_header_t *sr0, ip6_sr_localsid_t *ls0, u32 *next0)
static uword	sr_localsid_d_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	SR LocalSID graph node. More...
static uword	sr_localsid_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	SR LocalSID graph node. More...
static uword	sr_localsid_un_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
	SR LocalSID uN graph node. More...
static uword	sr_localsid_un_perf_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
static u8 *	format_sr_dpo (u8 *s, va_list *args)
int	sr_localsid_register_function (vlib_main_t *vm, u8 *fn_name, u8 *keyword_str, u8 *def_str, u8 *params_str, u8 prefix_length, dpo_type_t *dpo, format_function_t *ls_format, unformat_function_t *ls_unformat, sr_plugin_callback_t *creation_fn, sr_plugin_callback_t *removal_fn)
	SR LocalSID plugin registry. More...
static clib_error_t *	show_sr_localsid_behaviors_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
	CLI function to 'show' all available SR LocalSID behaviors. More...
clib_error_t *	sr_localsids_init (vlib_main_t *vm)
	SR LocalSID initialization. More...

Variables
static dpo_type_t	sr_localsid_dpo_type
	Dynamically added SR localsid DPO type. More...
static dpo_type_t	sr_localsid_d_dpo_type
static dpo_type_t	sr_localsid_un_dpo_type
static dpo_type_t	sr_localsid_un_perf_dpo_type
static vlib_cli_command_t	sr_localsid_command
	(constructor) VLIB_CLI_COMMAND (sr_localsid_command) More...
static vlib_cli_command_t	show_sr_localsid_command
	(constructor) VLIB_CLI_COMMAND (show_sr_localsid_command) More...
static vlib_cli_command_t	clear_sr_localsid_counters_command
	(constructor) VLIB_CLI_COMMAND (clear_sr_localsid_counters_command) More...
static char *	sr_localsid_error_strings []
vlib_node_registration_t	sr_localsid_d_node
	(constructor) VLIB_REGISTER_NODE (sr_localsid_d_node) More...
vlib_node_registration_t	sr_localsid_node
	(constructor) VLIB_REGISTER_NODE (sr_localsid_node) More...
vlib_node_registration_t	sr_localsid_un_node
	(constructor) VLIB_REGISTER_NODE (sr_localsid_un_node) More...
vlib_node_registration_t	sr_localsid_un_perf_node
	(constructor) VLIB_REGISTER_NODE (sr_localsid_un_perf_node) More...
static const dpo_vft_t	sr_loc_vft
static const char *const	sr_loc_ip6_nodes []
static const char *const *const	sr_loc_nodes [DPO_PROTO_NUM]
static const char *const	sr_loc_d_ip6_nodes []
static const char *const *const	sr_loc_d_nodes [DPO_PROTO_NUM]
static const char *const	sr_loc_un_ip6_nodes []
static const char *const *const	sr_loc_un_nodes [DPO_PROTO_NUM]
static const char *const	sr_loc_un_perf_ip6_nodes []
static const char *const *const	sr_loc_un_perf_nodes [DPO_PROTO_NUM]
static vlib_cli_command_t	show_sr_localsid_behaviors_command
	(constructor) VLIB_CLI_COMMAND (show_sr_localsid_behaviors_command) More...

Detailed Description

Processing of packets with a SRH.

CLI to define new Segment Routing End processing functions. Graph node to support such functions.

Each function associates an SRv6 segment (IPv6 address) with an specific Segment Routing function.

Definition in file sr_localsid.c.

Macro Definition Documentation

foreach_sr_localsid_error

#define foreach_sr_localsid_error

Value:

_(NO_INNER_HEADER, "(SR-Error) No inner IP header")                 \
_(NO_MORE_SEGMENTS, "(SR-Error) No more segments")                  \
_(NO_SRH, "(SR-Error) No SR header")                                \
_(NO_PSP, "(SR-Error) PSP Not available (segments left > 0)")       \
_(NOT_LS, "(SR-Error) Decaps not available (segments left > 0)")    \
_(L2, "(SR-Error) SRv6 decapsulated a L2 frame without dest")

Definition at line 724 of file sr_localsid.c.

foreach_sr_localsid_next

#define foreach_sr_localsid_next

Value:

_(ERROR, "error-drop")                  \
_(IP6_LOOKUP, "ip6-lookup")             \
_(IP4_LOOKUP, "ip4-lookup")             \
_(IP6_REWRITE, "ip6-rewrite")           \
_(IP4_REWRITE, "ip4-rewrite")           \
_(INTERFACE_OUTPUT, "interface-output")

Definition at line 746 of file sr_localsid.c.

Enumeration Type Documentation

sr_localsid_error_t

enum sr_localsid_error_t

Enumerator
SR_LOCALSID_N_ERROR

Definition at line 732 of file sr_localsid.c.

sr_localsid_next_t

enum sr_localsid_next_t

Enumerator
SR_LOCALSID_N_NEXT

Definition at line 754 of file sr_localsid.c.

Function Documentation

clear_sr_localsid_counters_command_fn()

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

static

Function to 'clear' ALL SR localsid counters.

Definition at line 691 of file sr_localsid.c.

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end_decaps_srh_processing()

static_always_inline void end_decaps_srh_processing	(	vlib_node_runtime_t *	node,
		vlib_buffer_t *	b0,
		ip6_header_t *	ip0,
		ip6_sr_header_t *	sr0,
		ip6_sr_localsid_t *	ls0,
		u32 *	next0
	)

Definition at line 1073 of file sr_localsid.c.

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end_srh_processing()

static_always_inline void end_srh_processing	(	vlib_node_runtime_t *	node,
		vlib_buffer_t *	b0,
		ip6_header_t *	ip0,
		ip6_sr_header_t *	sr0,
		ip6_sr_localsid_t *	ls0,
		u32 *	next0,
		u8	psp,
		ip6_ext_header_t *	prev0
	)

Function doing End processing.

Definition at line 835 of file sr_localsid.c.

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end_un_processing()

static_always_inline void end_un_processing	(	ip6_header_t *	ip0,
		ip6_sr_localsid_t *	ls0
	)

Definition at line 1044 of file sr_localsid.c.

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end_un_srh_processing()

static_always_inline void end_un_srh_processing	(	vlib_node_runtime_t *	node,
		vlib_buffer_t *	b0,
		ip6_header_t *	ip0,
		ip6_sr_header_t *	sr0,
		ip6_sr_localsid_t *	ls0,
		u32 *	next0,
		u8	psp,
		ip6_ext_header_t *	prev0
	)

Function doing End uN processing.

Definition at line 932 of file sr_localsid.c.

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format_sr_dpo()

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

static

Definition at line 2292 of file sr_localsid.c.

format_sr_localsid_trace()

u8* format_sr_localsid_trace	(	u8 *	s,
		va_list *	args
	)

SR LocalSID graph node trace function.

See also

sr_localsid

Definition at line 768 of file sr_localsid.c.

show_sr_localsid_behaviors_command_fn()

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

static

CLI function to 'show' all available SR LocalSID behaviors.

Definition at line 2397 of file sr_localsid.c.

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show_sr_localsid_command_fn()

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

static

CLI function to 'show' all SR LocalSIDs on console.

Definition at line 543 of file sr_localsid.c.

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sr_cli_localsid()

int sr_cli_localsid	(	char	is_del,
		ip6_address_t *	localsid_addr,
		u16	localsid_prefix_len,
		char	end_psp,
		u8	behavior,
		u32	sw_if_index,
		u32	vlan_index,
		u32	fib_table,
		ip46_address_t *	nh_addr,
		int	usid_len,
		void *	ls_plugin_mem
	)

SR localsid add/del.

Function to add or delete SR LocalSIDs.

Parameters

is_del	Boolean of whether its a delete instruction
localsid_addr	IPv6 address of the localsid
is_decap	Boolean of whether decapsulation is allowed in this function
behavior	Type of behavior (function) for this localsid
sw_if_index	Only for L2/L3 xconnect. OIF. In VRF variant the fib_table.
vlan_index	Only for L2 xconnect. Outgoing VLAN tag.
fib_table	FIB table in which we should install the localsid entry
nh_addr	Next Hop IPv4/IPv6 address. Only for L2/L3 xconnect.

Returns

0 on success, error otherwise.

Definition at line 77 of file sr_localsid.c.

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sr_cli_localsid_command_fn()

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

static

SR LocalSID CLI function.

See also

sr_cli_localsid

Definition at line 325 of file sr_localsid.c.

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sr_localsid_d_fn()

static uword sr_localsid_d_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

SR LocalSID graph node.

Supports all default SR Endpoint variants with decaps

Definition at line 1157 of file sr_localsid.c.

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sr_localsid_fn()

static uword sr_localsid_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

SR LocalSID graph node.

Supports all default SR Endpoint without decaps

Definition at line 1463 of file sr_localsid.c.

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sr_localsid_key_create()

static void sr_localsid_key_create ( sr_localsid_key_t *  key, ip6_address_t *  addr, u16  pref_len  )

static

Definition at line 52 of file sr_localsid.c.

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sr_localsid_register_function()

int sr_localsid_register_function	(	vlib_main_t *	vm,
		u8 *	fn_name,
		u8 *	keyword_str,
		u8 *	def_str,
		u8 *	params_str,
		u8	prefix_length,
		dpo_type_t *	dpo,
		format_function_t *	ls_format,
		unformat_function_t *	ls_unformat,
		sr_plugin_callback_t *	creation_fn,
		sr_plugin_callback_t *	removal_fn
	)

SR LocalSID plugin registry.

Definition at line 2347 of file sr_localsid.c.

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sr_localsid_un_fn()

static uword sr_localsid_un_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

SR LocalSID uN graph node.

Supports all default SR Endpoint without decaps

Definition at line 1773 of file sr_localsid.c.

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sr_localsid_un_perf_fn()

static uword sr_localsid_un_perf_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame  )

static

Definition at line 2080 of file sr_localsid.c.

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sr_localsids_init()

clib_error_t* sr_localsids_init

(

vlib_main_t *

vm

)

SR LocalSID initialization.

Definition at line 2454 of file sr_localsid.c.

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Variable Documentation

clear_sr_localsid_counters_command

vlib_cli_command_t clear_sr_localsid_counters_command

static

Initial value:

= {
  .path = "clear sr localsid-counters",
  .short_help = "clear sr localsid-counters",
  .function = clear_sr_localsid_counters_command_fn,
}

(constructor) VLIB_CLI_COMMAND (clear_sr_localsid_counters_command)

Definition at line 704 of file sr_localsid.c.

show_sr_localsid_behaviors_command

vlib_cli_command_t show_sr_localsid_behaviors_command

static

Initial value:

= {
  .path = "show sr localsids behaviors",
  .short_help = "show sr localsids behaviors",
  .function = show_sr_localsid_behaviors_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_sr_localsid_behaviors_command)

Definition at line 2443 of file sr_localsid.c.

show_sr_localsid_command

vlib_cli_command_t show_sr_localsid_command

static

Initial value:

= {
  .path = "show sr localsids",
  .short_help = "show sr localsids",
  .function = show_sr_localsid_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_sr_localsid_command)

Definition at line 680 of file sr_localsid.c.

sr_loc_d_ip6_nodes

const char* const sr_loc_d_ip6_nodes[]

static

Initial value:

= {
  "sr-localsid-d",
  NULL,
}

Definition at line 2315 of file sr_localsid.c.

sr_loc_d_nodes

const char* const* const sr_loc_d_nodes[DPO_PROTO_NUM]

static

Initial value:

= {
  [DPO_PROTO_IP6] = sr_loc_d_ip6_nodes,
}

Definition at line 2320 of file sr_localsid.c.

sr_loc_ip6_nodes

const char* const sr_loc_ip6_nodes[]

static

Initial value:

= {
  "sr-localsid",
  NULL,
}

Definition at line 2306 of file sr_localsid.c.

sr_loc_nodes

const char* const* const sr_loc_nodes[DPO_PROTO_NUM]

static

Initial value:

= {
  [DPO_PROTO_IP6] = sr_loc_ip6_nodes,
}

Definition at line 2311 of file sr_localsid.c.

sr_loc_un_ip6_nodes

const char* const sr_loc_un_ip6_nodes[]

static

Initial value:

= {
  "sr-localsid-un",
  NULL,
}

Definition at line 2324 of file sr_localsid.c.

sr_loc_un_nodes

const char* const* const sr_loc_un_nodes[DPO_PROTO_NUM]

static

Initial value:

= {
  [DPO_PROTO_IP6] = sr_loc_un_ip6_nodes,
}

Definition at line 2329 of file sr_localsid.c.

sr_loc_un_perf_ip6_nodes

const char* const sr_loc_un_perf_ip6_nodes[]

static

Initial value:

= {
  "sr-localsid-un-perf",
  NULL,
}

Definition at line 2333 of file sr_localsid.c.

sr_loc_un_perf_nodes

const char* const* const sr_loc_un_perf_nodes[DPO_PROTO_NUM]

static

Initial value:

= {
  [DPO_PROTO_IP6] = sr_loc_un_perf_ip6_nodes,
}

Definition at line 2338 of file sr_localsid.c.

sr_loc_vft

const dpo_vft_t sr_loc_vft

static

Initial value:

= {
  .dv_lock = sr_dpo_lock,
  .dv_unlock = sr_dpo_unlock,
  .dv_format = format_sr_dpo,
}

Definition at line 2300 of file sr_localsid.c.

sr_localsid_command

vlib_cli_command_t sr_localsid_command

static

Initial value:

= {
  .path = "sr localsid",
  .short_help = "sr localsid (del) address XX:XX::YY:YY"
      "(fib-table 8) behavior STRING",
  .long_help =
    "Create SR LocalSID and binds it to a particular behavior\n"
    "Arguments:\n"
    "\tlocalSID IPv6_addr(128b)   LocalSID IPv6 address\n"
    "\t(fib-table X)              Optional. VRF where to install SRv6 localsid\n"
    "\tbehavior STRING            Specifies the behavior\n"
    "\n\tBehaviors:\n"
    "\tEnd\t-> Endpoint.\n"
    "\tEnd.uN\t-> Endpoint with uSID.\n"
    "\tEnd.X\t-> Endpoint with decapsulation and Layer-3 cross-connect.\n"
    "\t\tParameters: '<iface> <ip6_next_hop>'\n"
    "\tEnd.DX2\t-> Endpoint with decapsulation and Layer-2 cross-connect.\n"
    "\t\tParameters: '<iface>'\n"
    "\tEnd.DX6\t-> Endpoint with decapsulation and IPv6 cross-connect.\n"
    "\t\tParameters: '<iface> <ip6_next_hop>'\n"
    "\tEnd.DX4\t-> Endpoint with decapsulation and IPv4 cross-connect.\n"
    "\t\tParameters: '<iface> <ip4_next_hop>'\n"
    "\tEnd.DT6\t-> Endpoint with decapsulation and specific IPv6 table lookup.\n"
    "\t\tParameters: '<ip6_fib_table>'\n"
    "\tEnd.DT4\t-> Endpoint with decapsulation and specific IPv4 table lookup.\n"
    "\t\tParameters: '<ip4_fib_table>'\n",
  .function = sr_cli_localsid_command_fn,
}

(constructor) VLIB_CLI_COMMAND (sr_localsid_command)

Definition at line 510 of file sr_localsid.c.

sr_localsid_d_dpo_type

dpo_type_t sr_localsid_d_dpo_type

static

Definition at line 47 of file sr_localsid.c.

sr_localsid_d_node

vlib_node_registration_t sr_localsid_d_node

Initial value:

= {
  .function = sr_localsid_d_fn,
  .name = "sr-localsid-d",
  .vector_size = sizeof (u32),
  .format_trace = format_sr_localsid_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = SR_LOCALSID_N_ERROR,
  .error_strings = sr_localsid_error_strings,
  .n_next_nodes = SR_LOCALSID_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_sr_localsid_next

  },
}

(constructor) VLIB_REGISTER_NODE (sr_localsid_d_node)

Definition at line 1442 of file sr_localsid.c.

sr_localsid_dpo_type

dpo_type_t sr_localsid_dpo_type

static

Dynamically added SR localsid DPO type.

Definition at line 46 of file sr_localsid.c.

sr_localsid_error_strings

char* sr_localsid_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_sr_localsid_error

}

Definition at line 740 of file sr_localsid.c.

sr_localsid_node

vlib_node_registration_t sr_localsid_node

Initial value:

= {
  .function = sr_localsid_fn,
  .name = "sr-localsid",
  .vector_size = sizeof (u32),
  .format_trace = format_sr_localsid_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = SR_LOCALSID_N_ERROR,
  .error_strings = sr_localsid_error_strings,
  .n_next_nodes = SR_LOCALSID_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_sr_localsid_next

  },
}

(constructor) VLIB_REGISTER_NODE (sr_localsid_node)

Definition at line 1752 of file sr_localsid.c.

sr_localsid_un_dpo_type

dpo_type_t sr_localsid_un_dpo_type

static

Definition at line 48 of file sr_localsid.c.

sr_localsid_un_node

vlib_node_registration_t sr_localsid_un_node

Initial value:

= {
  .function = sr_localsid_un_fn,
  .name = "sr-localsid-un",
  .vector_size = sizeof (u32),
  .format_trace = format_sr_localsid_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = SR_LOCALSID_N_ERROR,
  .error_strings = sr_localsid_error_strings,
  .n_next_nodes = SR_LOCALSID_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_sr_localsid_next

  },
}

(constructor) VLIB_REGISTER_NODE (sr_localsid_un_node)

Definition at line 2062 of file sr_localsid.c.

sr_localsid_un_perf_dpo_type

dpo_type_t sr_localsid_un_perf_dpo_type

static

Definition at line 49 of file sr_localsid.c.

sr_localsid_un_perf_node

vlib_node_registration_t sr_localsid_un_perf_node

Initial value:

= {
  .function = sr_localsid_un_perf_fn,
  .name = "sr-localsid-un-perf",
  .vector_size = sizeof (u32),
  .format_trace = format_sr_localsid_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = SR_LOCALSID_N_ERROR,
  .error_strings = sr_localsid_error_strings,
  .n_next_nodes = SR_LOCALSID_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_sr_localsid_next

  },
}

(constructor) VLIB_REGISTER_NODE (sr_localsid_un_perf_node)

Definition at line 2274 of file sr_localsid.c.