gtpu_decap.c File Reference

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Data Structures
struct	gtpu_rx_trace_t

Macros
#define	gtpu_error(n, s)   s,
#define	foreach_gtpu_flow_error
#define	gtpu_error(n, s)   GTPU_FLOW_ERROR_##n,
#define	gtpu_error(n, s)   s,
#define	gtpu_local_need_csum_check(_b)
#define	gtpu_local_csum_is_valid(_b)

Enumerations
enum	ip_vxan_bypass_next_t {   IP_GENEVE_BYPASS_NEXT_DROP, IP_GENEVE_BYPASS_NEXT_GENEVE, IP_GENEVE_BYPASS_N_NEXT, IP_GTPU_BYPASS_NEXT_DROP,   IP_GTPU_BYPASS_NEXT_GTPU, IP_GTPU_BYPASS_N_NEXT }
enum	gtpu_flow_error_t { GTPU_FLOW_N_ERROR }

Functions
static u8 *	format_gtpu_rx_trace (u8 *s, va_list *args)
static u32	validate_gtpu_fib (vlib_buffer_t *b, gtpu_tunnel_t *t, u32 is_ip4)
static uword	gtpu_input (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, u32 is_ip4)
VLIB_NODE_FN()	gtpu4_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	gtpu6_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
static uword	ip_gtpu_bypass_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, u32 is_ip4)
VLIB_NODE_FN()	ip4_gtpu_bypass_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
clib_error_t *	ip4_gtpu_bypass_init (vlib_main_t *vm)
VLIB_NODE_FN()	ip6_gtpu_bypass_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
clib_error_t *	ip6_gtpu_bypass_init (vlib_main_t *vm)
static_always_inline u8	gtpu_validate_udp_csum (vlib_main_t *vm, vlib_buffer_t *b)
static_always_inline u8	gtpu_check_ip (vlib_buffer_t *b, u16 payload_len)
static_always_inline u8	gtpu_check_ip_udp_len (vlib_buffer_t *b)
static_always_inline u8	gtpu_err_code (u8 ip_err0, u8 udp_err0, u8 csum_err0)
static uword	gtpu_flow_input (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	gtpu4_flow_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)

Variables
vlib_node_registration_t	gtpu4_input_node
	(constructor) VLIB_REGISTER_NODE (gtpu4_input_node) More...
vlib_node_registration_t	gtpu6_input_node
	(constructor) VLIB_REGISTER_NODE (gtpu6_input_node) More...
static char *	gtpu_error_strings []
vlib_node_registration_t	ip4_gtpu_bypass_node
	(constructor) VLIB_REGISTER_NODE (ip4_gtpu_bypass_node) More...
vlib_node_registration_t	ip6_gtpu_bypass_node
	(constructor) VLIB_REGISTER_NODE (ip6_gtpu_bypass_node) More...
static char *	gtpu_flow_error_strings []
vlib_node_registration_t	gtpu4_flow_input_node
	(constructor) VLIB_REGISTER_NODE (gtpu4_flow_input_node) More...

Macro Definition Documentation

foreach_gtpu_flow_error

#define foreach_gtpu_flow_error

Value:

  _(NONE, "no error")                                                   \
  _(PAYLOAD_ERROR, "Payload type errors")                                                       \
  _(IP_CHECKSUM_ERROR, "Rx ip checksum errors")                         \
  _(IP_HEADER_ERROR, "Rx ip header errors")                             \
  _(UDP_CHECKSUM_ERROR, "Rx udp checksum errors")                               \
  _(UDP_LENGTH_ERROR, "Rx udp length errors")

Definition at line 1226 of file gtpu_decap.c.

gtpu_error [1/3]

#define gtpu_error	(		n,
			s
	)		s,

Definition at line 1239 of file gtpu_decap.c.

gtpu_error [2/3]

#define gtpu_error	(		n,
			s
	)		GTPU_FLOW_ERROR_##n,

Definition at line 1239 of file gtpu_decap.c.

gtpu_error [3/3]

#define gtpu_error	(		n,
			s
	)		s,

Definition at line 1239 of file gtpu_decap.c.

gtpu_local_csum_is_valid

#define gtpu_local_csum_is_valid

(

_b

)

Value:

  ((_b->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT ||                          \
    (_b->flags & VNET_BUFFER_F_OFFLOAD &&                                     \
     vnet_buffer (_b)->oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)) != 0)

Definition at line 1261 of file gtpu_decap.c.

gtpu_local_need_csum_check

#define gtpu_local_need_csum_check

(

_b

)

Value:

  (!(_b->flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED ||                        \
     (_b->flags & VNET_BUFFER_F_OFFLOAD &&                                    \
      vnet_buffer (_b)->oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)))

Definition at line 1256 of file gtpu_decap.c.

Enumeration Type Documentation

gtpu_flow_error_t

enum gtpu_flow_error_t

Enumerator
GTPU_FLOW_N_ERROR

Definition at line 1234 of file gtpu_decap.c.

ip_vxan_bypass_next_t

enum ip_vxan_bypass_next_t

Enumerator
IP_GENEVE_BYPASS_NEXT_DROP
IP_GENEVE_BYPASS_NEXT_GENEVE
IP_GENEVE_BYPASS_N_NEXT
IP_GTPU_BYPASS_NEXT_DROP
IP_GTPU_BYPASS_NEXT_GTPU
IP_GTPU_BYPASS_N_NEXT

Definition at line 787 of file gtpu_decap.c.

Function Documentation

format_gtpu_rx_trace()

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

static

Definition at line 31 of file gtpu_decap.c.

gtpu4_flow_input_node()

VLIB_NODE_FN() gtpu4_flow_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1728 of file gtpu_decap.c.

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gtpu4_input_node()

VLIB_NODE_FN() gtpu4_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 726 of file gtpu_decap.c.

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gtpu6_input_node()

VLIB_NODE_FN() gtpu6_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 733 of file gtpu_decap.c.

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gtpu_check_ip()

static_always_inline u8 gtpu_check_ip	(	vlib_buffer_t *	b,
		u16	payload_len
	)

Definition at line 1284 of file gtpu_decap.c.

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gtpu_check_ip_udp_len()

static_always_inline u8 gtpu_check_ip_udp_len

(

vlib_buffer_t *

b

)

Definition at line 1294 of file gtpu_decap.c.

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gtpu_err_code()

static_always_inline u8 gtpu_err_code	(	u8	ip_err0,
		u8	udp_err0,
		u8	csum_err0
	)

Definition at line 1305 of file gtpu_decap.c.

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gtpu_flow_input()

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

inlinestatic

Definition at line 1319 of file gtpu_decap.c.

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gtpu_input()

static uword gtpu_input ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame, u32  is_ip4  )

inlinestatic

Definition at line 57 of file gtpu_decap.c.

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gtpu_validate_udp_csum()

static_always_inline u8 gtpu_validate_udp_csum	(	vlib_main_t *	vm,
		vlib_buffer_t *	b
	)

Definition at line 1267 of file gtpu_decap.c.

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ip4_gtpu_bypass_init()

clib_error_t* ip4_gtpu_bypass_init

(

vlib_main_t *

vm

)

Definition at line 1192 of file gtpu_decap.c.

ip4_gtpu_bypass_node()

VLIB_NODE_FN() ip4_gtpu_bypass_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1169 of file gtpu_decap.c.

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ip6_gtpu_bypass_init()

clib_error_t* ip6_gtpu_bypass_init

(

vlib_main_t *

vm

)

Definition at line 1221 of file gtpu_decap.c.

ip6_gtpu_bypass_node()

VLIB_NODE_FN() ip6_gtpu_bypass_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1198 of file gtpu_decap.c.

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ip_gtpu_bypass_inline()

static uword ip_gtpu_bypass_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, u32  is_ip4  )

inlinestatic

Definition at line 794 of file gtpu_decap.c.

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validate_gtpu_fib()

static u32 validate_gtpu_fib ( vlib_buffer_t *  b, gtpu_tunnel_t *  t, u32  is_ip4  )

inlinestatic

Definition at line 51 of file gtpu_decap.c.

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Variable Documentation

gtpu4_flow_input_node

vlib_node_registration_t gtpu4_flow_input_node

Initial value:

= {
  .name = "gtpu4-flow-input",
  .type = VLIB_NODE_TYPE_INTERNAL,
  .vector_size = sizeof (u32),
 
  .format_trace = format_gtpu_rx_trace,
 
  .n_errors = GTPU_FLOW_N_ERROR,
  .error_strings = gtpu_flow_error_strings,
 
  .n_next_nodes = GTPU_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_gtpu_input_next
 
 
  },
}

(constructor) VLIB_REGISTER_NODE (gtpu4_flow_input_node)

Definition at line 1738 of file gtpu_decap.c.

gtpu4_input_node

vlib_node_registration_t gtpu4_input_node

Initial value:

= {
  .name = "gtpu4-input",
  
  .vector_size = sizeof (u32),
 
  .n_errors = GTPU_N_ERROR,
  .error_strings = gtpu_error_strings,
 
  .n_next_nodes = GTPU_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_gtpu_input_next
 
  },
 
 
  .format_trace = format_gtpu_rx_trace,
  
}

(constructor) VLIB_REGISTER_NODE (gtpu4_input_node)

Definition at line 747 of file gtpu_decap.c.

gtpu6_input_node

vlib_node_registration_t gtpu6_input_node

Initial value:

= {
  .name = "gtpu6-input",
  
  .vector_size = sizeof (u32),
 
  .n_errors = GTPU_N_ERROR,
  .error_strings = gtpu_error_strings,
 
  .n_next_nodes = GTPU_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_gtpu_input_next
 
  },
 
 
  .format_trace = format_gtpu_rx_trace,
  
}

(constructor) VLIB_REGISTER_NODE (gtpu6_input_node)

Definition at line 767 of file gtpu_decap.c.

gtpu_error_strings

char* gtpu_error_strings[]

static

Initial value:

= {
#define gtpu_error(n,s) 
 
 
 
}

Definition at line 740 of file gtpu_decap.c.

gtpu_flow_error_strings

char* gtpu_flow_error_strings[]

static

Initial value:

= {
#define _(n,s) 
  foreach_gtpu_flow_error
 
#define gtpu_error(n,s) 
 
 
 
 
}

Definition at line 1245 of file gtpu_decap.c.

ip4_gtpu_bypass_node

vlib_node_registration_t ip4_gtpu_bypass_node

Initial value:

= {
  .name = "ip4-gtpu-bypass",
  .vector_size = sizeof (u32),
 
  .n_next_nodes = IP_GTPU_BYPASS_N_NEXT,
  .next_nodes = {
    [IP_GTPU_BYPASS_NEXT_DROP] = "error-drop",
    [IP_GTPU_BYPASS_NEXT_GTPU] = "gtpu4-input",
  },
 
  .format_buffer = format_ip4_header,
  .format_trace = format_ip4_forward_next_trace,
}

(constructor) VLIB_REGISTER_NODE (ip4_gtpu_bypass_node)

Definition at line 1176 of file gtpu_decap.c.

ip6_gtpu_bypass_node

vlib_node_registration_t ip6_gtpu_bypass_node

Initial value:

= {
  .name = "ip6-gtpu-bypass",
  .vector_size = sizeof (u32),
 
  .n_next_nodes = IP_GTPU_BYPASS_N_NEXT,
  .next_nodes = {
    [IP_GTPU_BYPASS_NEXT_DROP] = "error-drop",
    [IP_GTPU_BYPASS_NEXT_GTPU] = "gtpu6-input",
  },
 
  .format_buffer = format_ip6_header,
  .format_trace = format_ip6_forward_next_trace,
}

(constructor) VLIB_REGISTER_NODE (ip6_gtpu_bypass_node)

Definition at line 1205 of file gtpu_decap.c.