1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright (c) 2015 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_ping_ping_h
#define included_ping_ping_h
#include <vnet/ip/ip.h>
#include <vnet/ip/lookup.h>
typedef enum
{
PING_RESPONSE_IP6 = 42,
PING_RESPONSE_IP4,
} ping_response_type_t;
#define foreach_ip46_ping_result \
_ (OK, "OK") \
_ (ALLOC_FAIL, "packet allocation failed") \
_ (NO_INTERFACE, "no egress interface") \
_ (NO_TABLE, "no FIB table for lookup") \
_ (NO_SRC_ADDRESS, "no source address for egress interface") \
_ (NO_BUFFERS, "could not allocate a new buffer") \
typedef enum
{
#define _(v, s) SEND_PING_##v,
foreach_ip46_ping_result
#undef _
} send_ip46_ping_result_t;
/*
* Currently running ping command.
*/
typedef struct ping_run_t
{
u16 icmp_id;
uword cli_process_id;
} ping_run_t;
typedef struct ping_main_t
{
/* API message ID base */
u16 msg_id_base;
ip6_main_t *ip6_main;
ip4_main_t *ip4_main;
/* a vector of current ping runs. */
ping_run_t *active_ping_runs;
/* a lock held while add/remove/search on active_ping_runs */
clib_spinlock_t ping_run_check_lock;
} ping_main_t;
extern ping_main_t ping_main;
#define PING_DEFAULT_DATA_LEN 60
#define PING_DEFAULT_INTERVAL 1.0
#define PING_MAXIMUM_DATA_SIZE 32768
#define PING_CLI_UNKNOWN_NODE (~0)
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
u16 id;
u16 seq;
u64 time_sent;
u8 data[0];
}) icmp46_echo_request_t;
/* *INDENT-ON* */
typedef enum
{
ICMP46_ECHO_REPLY_NEXT_DROP,
ICMP46_ECHO_REPLY_NEXT_PUNT,
ICMP46_ECHO_REPLY_N_NEXT,
} icmp46_echo_reply_next_t;
static_always_inline uword
get_cli_process_id_by_icmp_id_mt (vlib_main_t *vm, u16 icmp_id)
{
ping_main_t *pm = &ping_main;
uword cli_process_id = PING_CLI_UNKNOWN_NODE;
ping_run_t *pr;
clib_spinlock_lock_if_init (&pm->ping_run_check_lock);
vec_foreach (pr, pm->active_ping_runs)
{
if (pr->icmp_id == icmp_id)
{
cli_process_id = pr->cli_process_id;
break;
}
}
clib_spinlock_unlock_if_init (&pm->ping_run_check_lock);
return cli_process_id;
}
static_always_inline void
set_cli_process_id_by_icmp_id_mt (vlib_main_t *vm, u16 icmp_id,
uword cli_process_id)
{
ping_main_t *pm = &ping_main;
ping_run_t *pr;
clib_spinlock_lock_if_init (&pm->ping_run_check_lock);
vec_foreach (pr, pm->active_ping_runs)
{
if (pr->icmp_id == icmp_id)
{
pr->cli_process_id = cli_process_id;
goto have_found_and_set;
}
}
/* no such key yet - add a new one */
ping_run_t new_pr = { .icmp_id = icmp_id, .cli_process_id = cli_process_id };
vec_add1 (pm->active_ping_runs, new_pr);
have_found_and_set:
clib_spinlock_unlock_if_init (&pm->ping_run_check_lock);
}
static_always_inline void
clear_cli_process_id_by_icmp_id_mt (vlib_main_t *vm, u16 icmp_id)
{
ping_main_t *pm = &ping_main;
ping_run_t *pr;
clib_spinlock_lock_if_init (&pm->ping_run_check_lock);
vec_foreach (pr, pm->active_ping_runs)
{
if (pr->icmp_id == icmp_id)
{
vec_del1 (pm->active_ping_runs, pr - pm->active_ping_runs);
break;
}
}
clib_spinlock_unlock_if_init (&pm->ping_run_check_lock);
}
clib_error_t *ping_plugin_api_hookup (vlib_main_t *vm);
send_ip46_ping_result_t send_ip4_ping (vlib_main_t *vm, u32 table_id,
ip4_address_t *pa4, u32 sw_if_index,
u16 seq_host, u16 id_host, u16 data_len,
u32 burst, u8 verbose);
send_ip46_ping_result_t send_ip6_ping (vlib_main_t *vm, u32 table_id,
ip6_address_t *pa6, u32 sw_if_index,
u16 seq_host, u16 id_host, u16 data_len,
u32 burst, u8 verbose);
#endif /* included_ping_ping_h */
|
