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Vector Packet Processing
format.c
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
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7  * http://www.apache.org/licenses/LICENSE-2.0
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9  * Unless required by applicable law or agreed to in writing, software
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11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
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14  */
15 /*
16  * ip/ip_format.c: ip generic (4 or 6) formatting
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
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24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
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28  * The above copyright notice and this permission notice shall be
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30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #include <vnet/ip/ip.h>
41 
42 /* Format IP protocol. */
43 u8 * format_ip_protocol (u8 * s, va_list * args)
44 {
45  ip_protocol_t protocol = va_arg (*args, ip_protocol_t);
46  ip_main_t * im = &ip_main;
47  ip_protocol_info_t * pi = ip_get_protocol_info (im, protocol);
48 
49  if (pi)
50  return format (s, "%s", pi->name);
51  else
52  return format (s, "unknown %d", protocol);
53 }
54 
55 uword unformat_ip_protocol (unformat_input_t * input, va_list * args)
56 {
57  u8 * result = va_arg (*args, u8 *);
58  ip_main_t * im = &ip_main;
59  ip_protocol_info_t * pi;
60  int i;
61 
63  im->protocol_info_by_name, &i))
64  return 0;
65 
66  pi = vec_elt_at_index (im->protocol_infos, i);
67  *result = pi->protocol;
68  return 1;
69 }
70 
71 u8 * format_tcp_udp_port (u8 * s, va_list * args)
72 {
73  int port = va_arg (*args, int);
74  ip_main_t * im = &ip_main;
76 
77  pi = ip_get_tcp_udp_port_info (im, port);
78  if (pi)
79  s = format (s, "%s", pi->name);
80  else
81  s = format (s, "%d", clib_net_to_host_u16 (port));
82 
83  return s;
84 }
85 
86 uword unformat_tcp_udp_port (unformat_input_t * input, va_list * args)
87 {
88  u16 * result = va_arg (*args, u16 *);
89  ip_main_t * im = &ip_main;
91  u32 i, port;
92 
93 
95  im->port_info_by_name, &i))
96  {
97  pi = vec_elt_at_index (im->port_infos, i);
98  port = pi->port;
99  }
100  else if (unformat_user (input, unformat_vlib_number, &port)
101  && port < (1 << 16))
102  port = clib_host_to_net_u16 (port);
103 
104  else
105  return 0;
106 
107  *result = port;
108  return 1;
109 }
uword * protocol_info_by_name
Definition: ip.h:118
uword unformat_vlib_number(unformat_input_t *input, va_list *args)
Definition: format.c:148
uword unformat_tcp_udp_port(unformat_input_t *input, va_list *args)
Definition: format.c:86
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:343
uword * port_info_by_name
Definition: ip.h:127
Definition: ip.h:109
ip_protocol_t protocol
Definition: ip.h:79
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:977
static ip_protocol_info_t * ip_get_protocol_info(ip_main_t *im, u32 protocol)
Definition: ip.h:136
enum ip_protocol ip_protocol_t
ip_protocol_info_t * protocol_infos
Definition: ip.h:111
ip_main_t ip_main
Definition: ip_init.c:42
uword unformat_vlib_number_by_name(unformat_input_t *input, va_list *args)
Definition: format.c:157
static tcp_udp_port_info_t * ip_get_tcp_udp_port_info(ip_main_t *im, u32 port)
Definition: ip.h:145
unsigned int u32
Definition: types.h:88
u8 * format(u8 *s, char *fmt,...)
Definition: format.c:418
uword unformat_ip_protocol(unformat_input_t *input, va_list *args)
Definition: format.c:55
u8 * format_ip_protocol(u8 *s, va_list *args)
Definition: format.c:43
u64 uword
Definition: types.h:112
u8 * format_tcp_udp_port(u8 *s, va_list *args)
Definition: format.c:71
unsigned short u16
Definition: types.h:57
unsigned char u8
Definition: types.h:56
u8 * name
Definition: ip.h:76
tcp_udp_port_info_t * port_infos
Definition: ip.h:121
struct _unformat_input_t unformat_input_t