decap.c File Reference

Include dependency graph for decap.c:

Go to the source code of this file.

Data Structures
struct	vxlan_rx_trace_t

Macros
#define	vxlan_error(n, s)   s,
#define	foreach_vxlan_flow_input_next
#define	foreach_vxlan_flow_error

Typedefs
typedef vxlan4_tunnel_key_t	last_tunnel_cache4
typedef vxlan6_tunnel_key_t	last_tunnel_cache6

Enumerations
enum	ip_vxan_bypass_next_t {   IP_GENEVE_BYPASS_NEXT_DROP, IP_GENEVE_BYPASS_NEXT_GENEVE, IP_GENEVE_BYPASS_N_NEXT, IP_VXLAN_BYPASS_NEXT_DROP,   IP_VXLAN_BYPASS_NEXT_VXLAN, IP_VXLAN_BYPASS_N_NEXT, IP_VXLAN_BYPASS_NEXT_DROP, IP_VXLAN_BYPASS_NEXT_VXLAN,   IP_VXLAN_BYPASS_N_NEXT, IP_GTPU_BYPASS_NEXT_DROP, IP_GTPU_BYPASS_NEXT_GTPU, IP_GTPU_BYPASS_N_NEXT }
enum	vxlan_flow_input_next_t { VXLAN_FLOW_N_NEXT }
enum	vxlan_flow_error_t { VXLAN_FLOW_N_ERROR }

Functions
static u8 *	format_vxlan_rx_trace (u8 *s, va_list *args)
static u32	buf_fib_index (vlib_buffer_t *b, u32 is_ip4)
static vxlan_decap_info_t	vxlan4_find_tunnel (vxlan_main_t *vxm, last_tunnel_cache4 *cache, u32 fib_index, ip4_header_t *ip4_0, vxlan_header_t *vxlan0, u32 *stats_sw_if_index)
static vxlan_decap_info_t	vxlan6_find_tunnel (vxlan_main_t *vxm, last_tunnel_cache6 *cache, u32 fib_index, ip6_header_t *ip6_0, vxlan_header_t *vxlan0, u32 *stats_sw_if_index)
static uword	vxlan_input (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, u32 is_ip4)
VLIB_NODE_FN()	vxlan4_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	vxlan6_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
static uword	ip_vxlan_bypass_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, u32 is_ip4)
VLIB_NODE_FN()	ip4_vxlan_bypass_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static clib_error_t *	ip4_vxlan_bypass_init (vlib_main_t *vm)
VLIB_NODE_FN()	ip6_vxlan_bypass_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static clib_error_t *	ip6_vxlan_bypass_init (vlib_main_t *vm)
static_always_inline u8	vxlan_validate_udp_csum (vlib_main_t *vm, vlib_buffer_t *b)
static_always_inline u8	vxlan_check_udp_csum (vlib_main_t *vm, vlib_buffer_t *b)
static_always_inline u8	vxlan_check_ip (vlib_buffer_t *b, u16 payload_len)
static_always_inline u8	vxlan_check_ip_udp_len (vlib_buffer_t *b)
static_always_inline u8	vxlan_err_code (u8 ip_err0, u8 udp_err0, u8 csum_err0)
VLIB_NODE_FN()	vxlan4_flow_input_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *f)

Variables
vlib_node_registration_t	vxlan4_input_node
	(constructor) VLIB_REGISTER_NODE (vxlan4_input_node) More...
vlib_node_registration_t	vxlan6_input_node
	(constructor) VLIB_REGISTER_NODE (vxlan6_input_node) More...
static const vxlan_decap_info_t	decap_not_found
static const vxlan_decap_info_t	decap_bad_flags
static char *	vxlan_error_strings []
vlib_node_registration_t	ip4_vxlan_bypass_node
	(constructor) VLIB_REGISTER_NODE (ip4_vxlan_bypass_node) More...
vlib_node_registration_t	ip6_vxlan_bypass_node
	(constructor) VLIB_REGISTER_NODE (ip6_vxlan_bypass_node) More...
static char *	vxlan_flow_error_strings []
vlib_node_registration_t	vxlan4_flow_input_node
	(constructor) VLIB_REGISTER_NODE (vxlan4_flow_input_node) More...

Macro Definition Documentation

#define foreach_vxlan_flow_error

Value:

_(NONE, "no error")                                                     \
  _(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 934 of file decap.c.

#define foreach_vxlan_flow_input_next

Value:

_(DROP, "error-drop")                           \
_(L2_INPUT, "l2-input")

Definition at line 922 of file decap.c.

#define vxlan_error	(		n,
			s
	)		s,

Typedef Documentation

typedef vxlan4_tunnel_key_t last_tunnel_cache4

Definition at line 63 of file decap.c.

typedef vxlan6_tunnel_key_t last_tunnel_cache6

Definition at line 134 of file decap.c.

Enumeration Type Documentation

enum ip_vxan_bypass_next_t

Enumerator
IP_GENEVE_BYPASS_NEXT_DROP
IP_GENEVE_BYPASS_NEXT_GENEVE
IP_GENEVE_BYPASS_N_NEXT
IP_VXLAN_BYPASS_NEXT_DROP
IP_VXLAN_BYPASS_NEXT_VXLAN
IP_VXLAN_BYPASS_N_NEXT
IP_VXLAN_BYPASS_NEXT_DROP
IP_VXLAN_BYPASS_NEXT_VXLAN
IP_VXLAN_BYPASS_N_NEXT
IP_GTPU_BYPASS_NEXT_DROP
IP_GTPU_BYPASS_NEXT_GTPU
IP_GTPU_BYPASS_N_NEXT

Definition at line 455 of file decap.c.

enum vxlan_flow_error_t

Enumerator
VXLAN_FLOW_N_ERROR

Definition at line 941 of file decap.c.

enum vxlan_flow_input_next_t

Enumerator
VXLAN_FLOW_N_NEXT

Definition at line 926 of file decap.c.

Function Documentation

static u32 buf_fib_index ( vlib_buffer_t *  b, u32  is_ip4  )

inlinestatic

Definition at line 50 of file decap.c.

Here is the caller graph for this function:

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

static

Definition at line 36 of file decap.c.

Here is the call graph for this function:

static clib_error_t* ip4_vxlan_bypass_init ( vlib_main_t *  vm )

static

Definition at line 883 of file decap.c.

VLIB_NODE_FN() ip4_vxlan_bypass_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 858 of file decap.c.

Here is the call graph for this function:

static clib_error_t* ip6_vxlan_bypass_init ( vlib_main_t *  vm )

static

Definition at line 915 of file decap.c.

VLIB_NODE_FN() ip6_vxlan_bypass_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 890 of file decap.c.

Here is the call graph for this function:

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

inlinestatic

Definition at line 463 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static vxlan_decap_info_t vxlan4_find_tunnel ( vxlan_main_t *  vxm, last_tunnel_cache4 *  cache, u32  fib_index, ip4_header_t *  ip4_0, vxlan_header_t *  vxlan0, u32 *  stats_sw_if_index  )

inlinestatic

Definition at line 78 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

VLIB_NODE_FN() vxlan4_flow_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	f
	)

Definition at line 1020 of file decap.c.

Here is the call graph for this function:

VLIB_NODE_FN() vxlan4_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 403 of file decap.c.

Here is the call graph for this function:

static vxlan_decap_info_t vxlan6_find_tunnel ( vxlan_main_t *  vxm, last_tunnel_cache6 *  cache, u32  fib_index, ip6_header_t *  ip6_0, vxlan_header_t *  vxlan0, u32 *  stats_sw_if_index  )

inlinestatic

Definition at line 137 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

VLIB_NODE_FN() vxlan6_input_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 410 of file decap.c.

Here is the call graph for this function:

static_always_inline u8 vxlan_check_ip	(	vlib_buffer_t *	b,
		u16	payload_len
	)

Definition at line 989 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static_always_inline u8 vxlan_check_ip_udp_len

(

vlib_buffer_t *

b

)

Definition at line 999 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 977 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 1008 of file decap.c.

Here is the caller graph for this function:

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

inlinestatic

Definition at line 192 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 957 of file decap.c.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

const vxlan_decap_info_t decap_bad_flags

static

Initial value:

= {
  .sw_if_index = ~0,
  .next_index = VXLAN_INPUT_NEXT_DROP,
  .error = VXLAN_ERROR_BAD_FLAGS
}

Definition at line 71 of file decap.c.

const vxlan_decap_info_t decap_not_found

static

Initial value:

= {
  .sw_if_index = ~0,
  .next_index = VXLAN_INPUT_NEXT_DROP,
  .error = VXLAN_ERROR_NO_SUCH_TUNNEL
}

Definition at line 65 of file decap.c.

vlib_node_registration_t ip4_vxlan_bypass_node

Initial value:

=
{
  .name = "ip4-vxlan-bypass",
  .vector_size = sizeof (u32),
  .n_next_nodes = IP_VXLAN_BYPASS_N_NEXT,
  .next_nodes = {
          [IP_VXLAN_BYPASS_NEXT_DROP] = "error-drop",
          [IP_VXLAN_BYPASS_NEXT_VXLAN] = "vxlan4-input",
  },
  .format_buffer = format_ip4_header,
  .format_trace = format_ip4_forward_next_trace,
}

(constructor) VLIB_REGISTER_NODE (ip4_vxlan_bypass_node)

Definition at line 866 of file decap.c.

vlib_node_registration_t ip6_vxlan_bypass_node

Initial value:

=
{
  .name = "ip6-vxlan-bypass",
  .vector_size = sizeof (u32),
  .n_next_nodes = IP_VXLAN_BYPASS_N_NEXT,
  .next_nodes = {
    [IP_VXLAN_BYPASS_NEXT_DROP] = "error-drop",
    [IP_VXLAN_BYPASS_NEXT_VXLAN] = "vxlan6-input",
  },
  .format_buffer = format_ip6_header,
  .format_trace = format_ip6_forward_next_trace,
}

(constructor) VLIB_REGISTER_NODE (ip6_vxlan_bypass_node)

Definition at line 898 of file decap.c.

vlib_node_registration_t vxlan4_flow_input_node

Initial value:

= {
  .name = "vxlan-flow-input",
  .type = VLIB_NODE_TYPE_INTERNAL,
  .vector_size = sizeof (u32),

  .format_trace = format_vxlan_rx_trace,

  .n_errors = VXLAN_FLOW_N_ERROR,
  .error_strings = vxlan_flow_error_strings,

  .n_next_nodes = VXLAN_FLOW_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_vxlan_flow_input_next

  },
}

(constructor) VLIB_REGISTER_NODE (vxlan4_flow_input_node)

Definition at line 1291 of file decap.c.

vlib_node_registration_t vxlan4_input_node

Initial value:

=
{
  .name = "vxlan4-input",
  .vector_size = sizeof (u32),
  .n_errors = VXLAN_N_ERROR,
  .error_strings = vxlan_error_strings,
  .n_next_nodes = VXLAN_INPUT_N_NEXT,
  .format_trace = format_vxlan_rx_trace,
  .next_nodes = {
#define _(s,n) 
    foreach_vxlan_input_next

  },
}

(constructor) VLIB_REGISTER_NODE (vxlan4_input_node)

Definition at line 23 of file decap.c.

vlib_node_registration_t vxlan6_input_node

Initial value:

=
{
  .name = "vxlan6-input",
  .vector_size = sizeof (u32),
  .n_errors = VXLAN_N_ERROR,
  .error_strings = vxlan_error_strings,
  .n_next_nodes = VXLAN_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) 
    foreach_vxlan_input_next

  },
  .format_trace = format_vxlan_rx_trace,
}

(constructor) VLIB_REGISTER_NODE (vxlan6_input_node)

Definition at line 24 of file decap.c.

char* vxlan_error_strings[]

static

Initial value:

= {
#define vxlan_error(n,s) 


}

Definition at line 417 of file decap.c.

char* vxlan_flow_error_strings[]

static

Initial value:

= {
#define _(n,s) 
  foreach_vxlan_flow_error

}

Definition at line 949 of file decap.c.