26 #define foreach_vxlan_encap_error \ 27 _(ENCAPSULATED, "good packets encapsulated") 30 #define _(sym,string) string, 36 #define _(sym,str) VXLAN_ENCAP_ERROR_##sym, 52 #ifndef CLIB_MARCH_VARIANT 60 s =
format (s,
"VXLAN encap to vxlan_tunnel%d vni %d",
72 u32 n_left_from, next_index, * from, * to_next;
78 u32 pkts_encapsulated = 0;
80 u32 sw_if_index0 = 0, sw_if_index1 = 0;
81 u32 next0 = 0, next1 = 0;
93 u8 const underlay_hdr_len = is_ip4 ?
94 sizeof(ip4_vxlan_header_t) :
sizeof(ip6_vxlan_header_t);
96 u32 const csum_flags = is_ip4 ? VNET_BUFFER_F_OFFLOAD_IP_CKSUM |
97 VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_OFFLOAD_UDP_CKSUM :
98 VNET_BUFFER_F_IS_IP6 | VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
100 while (n_left_from > 0)
105 to_next, n_left_to_next);
107 while (n_left_from >= 4 && n_left_to_next >= 2)
123 u32 bi0 = to_next[0] = from[0];
124 u32 bi1 = to_next[1] = from[1];
152 sw_if_index1 = sw_if_index0;
155 dpoi_idx1 = dpoi_idx0;
165 dpoi_idx1 = t1->next_dpo.dpoi_index;
172 ASSERT(t0->rewrite_header.data_bytes == underlay_hdr_len);
173 ASSERT(t1->rewrite_header.data_bytes == underlay_hdr_len);
181 u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len);
182 u16 payload_l1 = clib_host_to_net_u16 (len1 - l3_len);
194 ip4_vxlan_header_t * hdr0 = underlay0;
195 ip4_vxlan_header_t * hdr1 = underlay1;
200 ip4_0->
length = clib_host_to_net_u16 (len0);
201 ip4_1->
length = clib_host_to_net_u16 (len1);
206 ip4_0->
tos = ip4_0_tos;
211 ip4_1->
tos = ip4_1_tos;
221 ip6_vxlan_header_t * hdr0 = underlay0;
222 ip6_vxlan_header_t * hdr1 = underlay1;
237 udp0->
length = payload_l0;
239 udp1->
length = payload_l1;
244 b0->
flags |= csum_flags;
247 b1->
flags |= csum_flags;
279 (vm, b0, ip6_0, &bogus);
284 (vm, b1, ip6_1, &bogus);
294 if (sw_if_index0 == sw_if_index1)
297 sw_if_index0, 2, len0 + len1);
302 sw_if_index0, 1, len0);
304 sw_if_index1, 1, len1);
306 pkts_encapsulated += 2;
325 to_next, n_left_to_next,
326 bi0, bi1, next0, next1);
329 while (n_left_from > 0 && n_left_to_next > 0)
331 u32 bi0 = to_next[0] = from[0];
353 ASSERT(t0->rewrite_header.data_bytes == underlay_hdr_len);
360 u16 payload_l0 = clib_host_to_net_u16 (len0 - l3_len);
369 ip4_vxlan_header_t * hdr = underlay0;
373 ip4_0->
length = clib_host_to_net_u16 (len0);
378 ip4_0->
tos = ip4_0_tos;
386 ip6_vxlan_header_t * hdr = underlay0;
397 udp0->
length = payload_l0;
402 b0->
flags |= csum_flags;
425 (vm, b0, ip6_0, &bogus);
435 sw_if_index0, 1, len0);
436 pkts_encapsulated ++;
446 to_next, n_left_to_next,
455 VXLAN_ENCAP_ERROR_ENCAPSULATED,
481 .name =
"vxlan4-encap",
482 .vector_size =
sizeof (
u32),
494 .name =
"vxlan6-encap",
495 .vector_size =
sizeof (
u32),
#define vnet_rewrite_one_header(rw0, p0, most_likely_size)
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
static void vlib_increment_combined_counter(vlib_combined_counter_main_t *cm, u32 thread_index, u32 index, u64 n_packets, u64 n_bytes)
Increment a combined counter.
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
vnet_interface_main_t interface_main
#define foreach_vxlan_encap_error
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
#define VLIB_NODE_FN(node)
static uword vlib_buffer_length_in_chain(vlib_main_t *vm, vlib_buffer_t *b)
Get length in bytes of the buffer chain.
vl_api_interface_index_t sw_if_index
static char * vxlan_encap_error_strings[]
vlib_combined_counter_main_t * combined_sw_if_counters
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
vl_api_fib_path_type_t type
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
u32 node_index
Node index.
#define vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next, n_left_to_next, bi0, bi1, next0, next1)
Finish enqueueing two buffers forward in the graph.
#define vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, bi0, next0)
Finish enqueueing one buffer forward in the graph.
#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left)
Get pointer to next frame vector data by (vlib_node_runtime_t, next_index).
u8 * format_vxlan_encap_trace(u8 *s, va_list *args)
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
#define VLIB_REGISTER_NODE(x,...)
static_always_inline uword vlib_get_thread_index(void)
#define CLIB_PREFETCH(addr, size, type)
void vlib_put_next_frame(vlib_main_t *vm, vlib_node_runtime_t *r, u32 next_index, u32 n_vectors_left)
Release pointer to next frame vector data.
vlib_main_t vlib_node_runtime_t * node
u16 ip6_tcp_udp_icmp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip6_header_t *ip0, int *bogus_lengthp)
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
static void vlib_buffer_advance(vlib_buffer_t *b, word l)
Advance current data pointer by the supplied (signed!) amount.
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
static uword vxlan_encap_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, u8 is_ip4, u8 csum_offload)
index_t dpoi_index
the index of objects of that type
#define INDEX_INVALID
Invalid index - used when no index is known blazoned capitals INVALID speak volumes where ~0 does not...
VLIB buffer representation.
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
#define ip_csum_update(sum, old, new, type, field)
A collection of combined counters.
vlib_node_registration_t vxlan4_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan4_encap_node)
vlib_node_registration_t vxlan6_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan6_encap_node)
u16 dpoi_next_node
The next VLIB node to follow.
#define vnet_rewrite_two_headers(rw0, rw1, p0, p1, most_likely_size)
#define CLIB_CACHE_LINE_BYTES
#define STATIC_ASSERT_SIZEOF(d, s)
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
u8 qos_bits_t
Type, er, safety for us water based entities.
static u16 ip_csum_fold(ip_csum_t c)