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/*
* ip/udp.h: udp protocol
*
* Copyright (c) 2013 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_udp_h
#define included_udp_h
#include <vnet/vnet.h>
#include <vnet/ip/udp_packet.h>
#include <vnet/ip/ip.h>
#include <vnet/ip/ip4.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/pg/pg.h>
#include <vnet/ip/format.h>
typedef enum {
#define udp_error(n,s) UDP_ERROR_##n,
#include <vnet/ip/udp_error.def>
#undef udp_error
UDP_N_ERROR,
} udp_error_t;
#define foreach_udp4_dst_port \
_ (67, dhcp_to_server) \
_ (68, dhcp_to_client) \
_ (500, ikev2) \
_ (4341, lisp_gpe) \
_ (4739, ipfix) \
_ (4789, vxlan) \
_ (4790, vxlan_gpe) \
_ (6633, vpath_3)
#define foreach_udp6_dst_port \
_ (547, dhcpv6_to_server) \
_ (546, dhcpv6_to_client) \
_ (6633, vpath6_3)
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). */
char * name;
/* GRE protocol type in host byte order. */
udp_dst_port_t dst_port;
/* Node which handles this type. */
u32 node_index;
/* Next index for this type. */
u32 next_index;
} udp_dst_port_info_t;
typedef enum {
UDP_IP6 = 0,
UDP_IP4, /* the code is full of is_ip4... */
N_UDP_AF,
} udp_af_t;
typedef struct {
udp_dst_port_info_t * dst_port_infos [N_UDP_AF];
/* Hash tables mapping name/protocol to protocol info index. */
uword * dst_port_info_by_name[N_UDP_AF];
uword * dst_port_info_by_dst_port[N_UDP_AF];
/* convenience */
vlib_main_t * vlib_main;
} udp_main_t;
always_inline udp_dst_port_info_t *
udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4)
{
uword * p = hash_get (um->dst_port_info_by_dst_port[is_ip4], dst_port);
return p ? vec_elt_at_index (um->dst_port_infos[is_ip4], p[0]) : 0;
}
format_function_t format_udp_header;
format_function_t format_udp_rx_trace;
unformat_function_t unformat_udp_header;
void udp_register_dst_port (vlib_main_t * vm,
udp_dst_port_t dst_port,
u32 node_index, u8 is_ip4);
#endif /* included_udp_h */
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