#define __included_udp_h__
#include <vnet/vnet.h>
+#include <vnet/udp/udp_inlines.h>
+#include <vnet/udp/udp_local.h>
#include <vnet/udp/udp_packet.h>
#include <vnet/ip/ip.h>
#include <vnet/ip/ip4.h>
u16 mss; /**< connection mss */
} udp_connection_t;
-#define foreach_udp4_dst_port \
-_ (53, dns) \
-_ (67, dhcp_to_server) \
-_ (68, dhcp_to_client) \
-_ (500, ikev2) \
-_ (2152, GTPU) \
-_ (3784, bfd4) \
-_ (3785, bfd_echo4) \
-_ (4341, lisp_gpe) \
-_ (4342, lisp_cp) \
-_ (4500, ipsec) \
-_ (4739, ipfix) \
-_ (4789, vxlan) \
-_ (4789, vxlan6) \
-_ (48879, vxlan_gbp) \
-_ (4790, VXLAN_GPE) \
-_ (6633, vpath_3) \
-_ (6081, geneve) \
-_ (53053, dns_reply)
-
-
-#define foreach_udp6_dst_port \
-_ (53, dns6) \
-_ (547, dhcpv6_to_server) \
-_ (546, dhcpv6_to_client) \
-_ (2152, GTPU6) \
-_ (3784, bfd6) \
-_ (3785, bfd_echo6) \
-_ (4341, lisp_gpe6) \
-_ (4342, lisp_cp6) \
-_ (48879, vxlan6_gbp) \
-_ (4790, VXLAN6_GPE) \
-_ (6633, vpath6_3) \
-_ (6081, geneve6) \
-_ (8138, BIER) \
-_ (53053, dns_reply6)
-
-typedef enum
-{
-#define _(n,f) UDP_DST_PORT_##f = n,
- foreach_udp4_dst_port foreach_udp6_dst_port
-#undef _
-} udp_dst_port_t;
-
-typedef enum
-{
-#define _(n,f) UDP6_DST_PORT_##f = n,
- foreach_udp6_dst_port
-#undef _
-} udp6_dst_port_t;
-
typedef struct
{
/* Name (a c string). */
extern vlib_node_registration_t udp4_local_node;
extern vlib_node_registration_t udp6_local_node;
+void udp_add_dst_port (udp_main_t * um, udp_dst_port_t dst_port,
+ char *dst_port_name, u8 is_ip4);
+
always_inline udp_connection_t *
udp_connection_get (u32 conn_index, u32 thread_index)
{
unformat_function_t unformat_udp_header;
unformat_function_t unformat_udp_port;
-void udp_add_dst_port (udp_main_t * um, udp_dst_port_t dst_port,
- char *dst_port_name, u8 is_ip4);
-void udp_register_dst_port (vlib_main_t * vm,
- udp_dst_port_t dst_port,
- u32 node_index, u8 is_ip4);
-void udp_unregister_dst_port (vlib_main_t * vm,
- udp_dst_port_t dst_port, u8 is_ip4);
-bool udp_is_valid_dst_port (udp_dst_port_t dst_port, u8 is_ip4);
void udp_connection_share_port (u16 lcl_port, u8 is_ip4);
void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);
-always_inline void *
-vlib_buffer_push_udp (vlib_buffer_t * b, u16 sp, u16 dp, u8 offload_csum)
-{
- udp_header_t *uh;
- u16 udp_len = sizeof (udp_header_t) + b->current_length;
- if (PREDICT_FALSE (b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID))
- udp_len += b->total_length_not_including_first_buffer;
-
- uh = vlib_buffer_push_uninit (b, sizeof (udp_header_t));
- uh->src_port = sp;
- uh->dst_port = dp;
- uh->checksum = 0;
- uh->length = clib_host_to_net_u16 (udp_len);
- if (offload_csum)
- b->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
- vnet_buffer (b)->l4_hdr_offset = (u8 *) uh - b->data;
- b->flags |= VNET_BUFFER_F_L4_HDR_OFFSET_VALID;
- return uh;
-}
-
-always_inline void
-ip_udp_fixup_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 is_ip4)
-{
- u16 new_l0;
- udp_header_t *udp0;
-
- if (is_ip4)
- {
- ip4_header_t *ip0;
- ip_csum_t sum0;
- u16 old_l0 = 0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* fix the <bleep>ing outer-IP checksum */
- sum0 = ip0->checksum;
- /* old_l0 always 0, see the rewrite setup */
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
-
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */ );
- ip0->checksum = ip_csum_fold (sum0);
- ip0->length = new_l0;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- udp0->length = new_l0;
- }
- else
- {
- ip6_header_t *ip0;
- int bogus0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- ip0->payload_length = new_l0;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp0->length = new_l0;
-
- udp0->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0);
- ASSERT (bogus0 == 0);
-
- if (udp0->checksum == 0)
- udp0->checksum = 0xffff;
- }
-}
-
-always_inline void
-ip_udp_encap_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 * ec0, word ec_len,
- u8 is_ip4)
-{
- vlib_buffer_advance (b0, -ec_len);
-
- if (is_ip4)
- {
- ip4_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- ip_udp_fixup_one (vm, b0, 1);
- }
- else
- {
- ip6_header_t *ip0;
-
- ip0 = vlib_buffer_get_current (b0);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- ip_udp_fixup_one (vm, b0, 0);
- }
-}
-
-always_inline void
-ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1,
- u8 * ec0, u8 * ec1, word ec_len, u8 is_v4)
-{
- u16 new_l0, new_l1;
- udp_header_t *udp0, *udp1;
-
- ASSERT (_vec_len (ec0) == _vec_len (ec1));
-
- vlib_buffer_advance (b0, -ec_len);
- vlib_buffer_advance (b1, -ec_len);
-
- if (is_v4)
- {
- ip4_header_t *ip0, *ip1;
- ip_csum_t sum0, sum1;
- u16 old_l0 = 0, old_l1 = 0;
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b1);
-
- /* Apply the encap string */
- clib_memcpy_fast (ip0, ec0, ec_len);
- clib_memcpy_fast (ip1, ec1, ec_len);
-
- /* fix the <bleep>ing outer-IP checksum */
- sum0 = ip0->checksum;
- sum1 = ip1->checksum;
-
- /* old_l0 always 0, see the rewrite setup */
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1));
-
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */ );
- sum1 = ip_csum_update (sum1, old_l1, new_l1, ip4_header_t,
- length /* changed member */ );
-
- ip0->checksum = ip_csum_fold (sum0);
- ip1->checksum = ip_csum_fold (sum1);
-
- ip0->length = new_l0;
- ip1->length = new_l1;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp1 = (udp_header_t *) (ip1 + 1);
-
- new_l0 =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (*ip0));
- new_l1 =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) -
- sizeof (*ip1));
- udp0->length = new_l0;
- udp1->length = new_l1;
- }
- else
- {
- ip6_header_t *ip0, *ip1;
- int bogus0, bogus1;
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b1);
-
- /* Apply the encap string. */
- clib_memcpy_fast (ip0, ec0, ec_len);
- clib_memcpy_fast (ip1, ec1, ec_len);
-
- new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
- - sizeof (*ip0));
- new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1)
- - sizeof (*ip1));
- ip0->payload_length = new_l0;
- ip1->payload_length = new_l1;
-
- /* Fix UDP length */
- udp0 = (udp_header_t *) (ip0 + 1);
- udp1 = (udp_header_t *) (ip1 + 1);
-
- udp0->length = new_l0;
- udp1->length = new_l1;
-
- udp0->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0);
- udp1->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1);
- ASSERT (bogus0 == 0);
- ASSERT (bogus1 == 0);
-
- if (udp0->checksum == 0)
- udp0->checksum = 0xffff;
- if (udp1->checksum == 0)
- udp1->checksum = 0xffff;
- }
-}
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff