44 #define foreach_nat66_in2out_error \ 45 _(IN2OUT_PACKETS, "good in2out packets processed") \ 46 _(NO_TRANSLATION, "no translation") \ 51 #define _(sym,str) NAT66_IN2OUT_ERROR_##sym, 58 #define _(sym,string) string, 90 if (sw_if_index == ~0)
102 if (nat_interface_is_outside (i) && sw_if_index == i->sw_if_index)
114 u32 n_left_from, *from, *to_next;
116 u32 pkts_processed = 0;
121 n_left_from =
frame->n_vectors;
122 next_index =
node->cached_next_index;
124 while (n_left_from > 0)
130 while (n_left_from > 0 && n_left_to_next > 0)
136 u16 l4_offset0, frag_offset0;
139 u32 sw_if_index0, fib_index0;
142 icmp46_header_t *icmp0;
163 b0->
error =
node->errors[NAT66_IN2OUT_ERROR_UNKNOWN];
181 if (l4_protocol0 == IP_PROTOCOL_UDP)
186 else if (l4_protocol0 == IP_PROTOCOL_TCP)
189 checksum0 = &tcp0->checksum;
191 else if (l4_protocol0 == IP_PROTOCOL_ICMP6)
193 icmp0 = (icmp46_header_t *)
u8_ptr_add (ip60, l4_offset0);
194 checksum0 = &icmp0->checksum;
210 thread_index, sm0 - nm->
sm, 1,
216 && (b0->
flags & VLIB_BUFFER_IS_TRACED)))
228 n_left_to_next, bi0, next0);
234 NAT66_IN2OUT_ERROR_IN2OUT_PACKETS,
236 return frame->n_vectors;
241 .name =
"nat66-in2out",
242 .vector_size =
sizeof (
u32),
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
fib_protocol_t fp_proto
protocol type
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.
u32 fib_table_get_index_for_sw_if_index(fib_protocol_t proto, u32 sw_if_index)
Get the index of the FIB bound to the interface.
u16 current_length
Nbytes between current data and the end of this buffer.
#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.
struct _tcp_header tcp_header_t
#define u8_ptr_add(ptr, index)
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
vl_api_interface_index_t sw_if_index
Aggregate type for a prefix.
fib_node_index_t fib_table_lookup(u32 fib_index, const fib_prefix_t *prefix)
Perfom a longest prefix match in the non-forwarding table.
vl_api_fib_path_type_t type
vlib_error_t error
Error code for buffers to be enqueued to error handler.
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
#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).
vlib_node_registration_t nat66_in2out_node
(constructor) VLIB_REGISTER_NODE (nat66_in2out_node)
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
u32 fib_entry_get_resolving_interface(fib_node_index_t entry_index)
static u8 nat66_not_translate(u32 rx_fib_index, ip6_address_t ip6_addr)
#define VLIB_REGISTER_NODE(x,...)
snat_interface_t * interfaces
Interface pool.
u32 fib_node_index_t
A typedef of a node index.
static char * nat66_in2out_error_strings[]
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
static ip_csum_t ip_csum_sub_even(ip_csum_t c, ip_csum_t x)
IPv6 to IPv4 translation.
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
vlib_combined_counter_main_t session_counters
Session counters.
#define foreach_nat66_in2out_error
#define FIB_NODE_INDEX_INVALID
VLIB buffer representation.
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
static u8 * format_nat66_in2out_trace(u8 *s, va_list *args)
vlib_main_t vlib_node_runtime_t vlib_frame_t * frame
nat66_static_mapping_t * sm
Static mapping pool.
static_always_inline int ip6_parse(vlib_main_t *vm, vlib_buffer_t *b, const ip6_header_t *ip6, u32 buff_len, u8 *l4_protocol, u16 *l4_offset, u16 *frag_hdr_offset)
Parse some useful information from IPv6 header.
#define VLIB_NODE_FLAG_TRACE
u32 in2out_node_index
node index
NAT66 global declarations.
nat66_static_mapping_t * nat66_static_mapping_get(ip6_address_t *addr, u32 fib_index, u8 is_local)
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
static u16 ip_csum_fold(ip_csum_t c)
static ip_csum_t ip_csum_add_even(ip_csum_t c, ip_csum_t x)