18 #define MAP_ENCAP_DUAL 0 21 #include "../ip/ip_frag.h" 29 #ifdef MAP_SKIP_IP6_LOOKUP 61 return format (s,
"MAP domain index: %d L4 port: %u Status: %s",
63 t->
cached ?
"cached" :
"forwarded");
68 u32 * next,
u8 * error)
78 || clib_host_to_net_u16 (ip->
length) < 28))
87 && (clib_net_to_host_u16 (port) <
90 *error = MAP_ERROR_ENCAP_SEC_CHECK;
101 *error = MAP_ERROR_BAD_PROTOCOL;
120 u32 vtcfl = 0x6 << 28;
122 vtcfl |=
vnet_buffer (p)->ip.flow_hash & 0x000fffff;
124 return (clib_host_to_net_u32 (vtcfl));
130 #ifdef MAP_SKIP_IP6_LOOKUP 152 u32 checksum = ip->
checksum + clib_host_to_net_u16 (0x0100);
153 checksum += checksum >= 0xffff;
157 *error = ttl <= 0 ? IP4_ERROR_TIME_EXPIRED : *error;
180 ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set,
183 *error = MAP_ERROR_DF_SET;
198 u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
208 while (n_left_from > 0)
213 while (n_left_from >= 4 && n_left_to_next >= 2)
218 u8 error0 = MAP_ERROR_NONE, error1 = MAP_ERROR_NONE;
220 u16 port0 = 0, port1 = 0;
222 u32 map_domain_index0 = ~0, map_domain_index1 = ~0;
240 pi0 = to_next[0] = from[0];
241 pi1 = to_next[1] = from[1];
277 u16 dp40 = clib_net_to_host_u16 (port0);
278 u16 dp41 = clib_net_to_host_u16 (port1);
283 if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE
285 error0 = MAP_ERROR_NO_BINDING;
286 if (dal61 == 0 && dar61 == 0 && error1 == MAP_ERROR_NONE
288 error1 = MAP_ERROR_NO_BINDING;
304 ip6h0->
protocol = IP_PROTOCOL_IP_IN_IP;
305 ip6h1->
protocol = IP_PROTOCOL_IP_IN_IP;
324 sizeof (*ip6h0) > d0->
mtu)))
336 map_domain_index0, 1,
356 sizeof (*ip6h1) > d1->
mtu)))
368 map_domain_index1, 1,
396 n_left_to_next, pi0, pi1, next0,
400 while (n_left_from > 0 && n_left_to_next > 0)
405 u8 error0 = MAP_ERROR_NONE;
410 u32 map_domain_index0 = ~0;
412 pi0 = to_next[0] = from[0];
437 u16 dp40 = clib_net_to_host_u16 (port0);
440 if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE
442 error0 = MAP_ERROR_NO_BINDING;
452 ip6h0->
protocol = IP_PROTOCOL_IP_IN_IP;
467 sizeof (*ip6h0) > d0->
mtu)))
479 map_domain_index0, 1,
499 n_left_to_next, pi0, next0);
514 u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
524 u32 *fragments_to_loopback =
NULL;
526 while (n_left_from > 0)
530 while (n_left_from > 0 && n_left_to_next > 0)
535 u8 error0 = MAP_ERROR_NONE;
540 u32 map_domain_index0;
543 pi0 = to_next[0] = from[0];
564 error0 = MAP_ERROR_FRAGMENT_MEMORY;
576 error0 = MAP_ERROR_FRAGMENT_MEMORY;
587 error0 = MAP_ERROR_BAD_PROTOCOL;
597 #ifdef MAP_IP4_REASS_COUNT_BYTES 604 clib_host_to_net_u16 (ip40->
length) - 20;
622 sizeof (*ip60) > d0->
mtu)))
624 vnet_buffer (p0)->ip_frag.header_offset =
sizeof (*ip60);
648 if (error0 == MAP_ERROR_NONE)
651 map_domain_index0, 1,
658 n_left_to_next, pi0, next0);
662 if (n_left_from == 0 &&
vec_len (fragments_to_loopback))
676 fragments_to_loopback + (len -
688 &error_node->
errors[MAP_ERROR_FRAGMENT_DROPPED],
697 #define _(sym,string) string, 706 .vector_size =
sizeof(
u32),
716 #ifdef MAP_SKIP_IP6_LOOKUP 731 .name =
"ip4-map-reass",
732 .vector_size =
sizeof(
u32),
#define map_ip4_reass_lock()
u8 * format_ip4_map_reass_trace(u8 *s, va_list *args)
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_always_inline u64 map_get_pfx(map_domain_t *d, u32 addr, u16 port)
void ip_frag_set_vnet_buffer(vlib_buffer_t *b, u16 offset, u16 mtu, u8 next_index, u8 flags)
dpo_id_t dpo
The Load-balance object index to use to forward.
struct _vlib_node_registration vlib_node_registration_t
vlib_node_registration_t ip4_map_node
(constructor) VLIB_REGISTER_NODE (ip4_map_node)
vlib_error_t * errors
Vector of errors for this node.
IPv4 to IPv6 translation.
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
#define static_always_inline
vlib_combined_counter_main_t * domain_counters
static int ip4_get_fragment_offset(ip4_header_t *i)
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
static_always_inline void map_send_all_to_node(vlib_main_t *vm, u32 *pi_vector, vlib_node_runtime_t *node, vlib_error_t *error, u32 next)
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
static u16 ip4_get_port(ip4_header_t *ip, u8 sender)
Get TCP/UDP port number or ICMP id from IPv4 packet.
static u32 ip4_map_fragment(vlib_buffer_t *b, u16 mtu, bool df, u8 *error)
static uword ip4_map_reass(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
static_always_inline u64 map_get_sfx_net(map_domain_t *d, u32 addr, u16 port)
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
map_ip4_reass_t * map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id, u8 protocol, u32 **pi_to_drop)
static_always_inline u32 ip4_map_vtcfl(ip4_header_t *ip4, vlib_buffer_t *p)
static_always_inline map_domain_t * ip4_map_get_domain(u32 mdi)
#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).
vlib_error_t error
Error code for buffers to be enqueued to error handler.
vlib_node_registration_t ip4_map_reass_node
(constructor) VLIB_REGISTER_NODE (ip4_map_reass_node)
map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX]
Pre-resolvd per-protocol global next-hops.
void map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop)
static uword ip4_map(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static_always_inline bool ip4_map_ip6_lookup_bypass(vlib_buffer_t *p0, ip4_header_t *ip)
static_always_inline uword vlib_get_thread_index(void)
static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi)
#define CLIB_PREFETCH(addr, size, type)
#define vec_free(V)
Free vector's memory (no header).
void icmp4_error_set_vnet_buffer(vlib_buffer_t *b, u8 type, u8 code, u32 data)
#define VLIB_BUFFER_IS_TRACED
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
#define clib_memcpy(a, b, c)
static void ip4_map_decrement_ttl(ip4_header_t *ip, u8 *error)
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.
#define foreach_map_error
static char * map_error_strings[]
#define IP_FRAG_FLAG_IP6_HEADER
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.
#define map_ip4_reass_unlock()
u8 * format_map_trace(u8 *s, va_list *args)
static int ip4_get_fragment_more(ip4_header_t *i)
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
index_t dpoi_index
the index of objects of that type
#define FIB_NODE_INDEX_INVALID
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
A collection of combined counters.
#define VLIB_REGISTER_NODE(x,...)
#define IP4_HEADER_FLAG_DONT_FRAGMENT
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
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 vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
static u16 ip4_header_checksum(ip4_header_t *i)
static_always_inline u16 ip4_map_port_and_security_check(map_domain_t *d, ip4_header_t *ip, u32 *next, u8 *error)