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Vector Packet Processing
ip46_cli.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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  * ip/ip4_cli.c: ip4 commands
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
23  * without limitation the rights to use, copy, modify, merge, publish,
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:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 /**
43  * @file
44  * @brief Set IP Address.
45  *
46  * Configure an IPv4 or IPv6 address for on an interface.
47  */
48 
49 
50 int
52 {
53  return clib_net_to_host_u32 (a1->data_u32) -
54  clib_net_to_host_u32 (a2->data_u32);
55 }
56 
57 int
59 {
60  int i;
61  for (i = 0; i < ARRAY_LEN (a1->as_u16); i++)
62  {
63  int cmp =
64  clib_net_to_host_u16 (a1->as_u16[i]) -
65  clib_net_to_host_u16 (a2->as_u16[i]);
66  if (cmp != 0)
67  return cmp;
68  }
69  return 0;
70 }
71 
72 /* *INDENT-OFF* */
73 VLIB_CLI_COMMAND (set_interface_ip_command, static) = {
74  .path = "set interface ip",
75  .short_help = "IP4/IP6 commands",
76 };
77 /* *INDENT-ON* */
78 
79 void
81 {
82  ip4_main_t *im4 = &ip4_main;
83  ip4_address_t *ip4_addrs = 0;
84  u32 *ip4_masks = 0;
85  ip6_main_t *im6 = &ip6_main;
86  ip6_address_t *ip6_addrs = 0;
87  u32 *ip6_masks = 0;
89  int i;
90 
91  /* *INDENT-OFF* */
92  foreach_ip_interface_address (&im4->lookup_main, ia, sw_if_index,
93  0 /* honor unnumbered */,
94  ({
95  ip4_address_t * x = (ip4_address_t *)
96  ip_interface_address_get_address (&im4->lookup_main, ia);
97  vec_add1 (ip4_addrs, x[0]);
98  vec_add1 (ip4_masks, ia->address_length);
99  }));
100  /* *INDENT-ON* */
101 
102  /* *INDENT-OFF* */
103  foreach_ip_interface_address (&im6->lookup_main, ia, sw_if_index,
104  0 /* honor unnumbered */,
105  ({
106  ip6_address_t * x = (ip6_address_t *)
107  ip_interface_address_get_address (&im6->lookup_main, ia);
108  vec_add1 (ip6_addrs, x[0]);
109  vec_add1 (ip6_masks, ia->address_length);
110  }));
111  /* *INDENT-ON* */
112 
113  for (i = 0; i < vec_len (ip4_addrs); i++)
114  ip4_add_del_interface_address (vm, sw_if_index, &ip4_addrs[i],
115  ip4_masks[i], 1 /* is_del */ );
116  for (i = 0; i < vec_len (ip6_addrs); i++)
117  ip6_add_del_interface_address (vm, sw_if_index, &ip6_addrs[i],
118  ip6_masks[i], 1 /* is_del */ );
119 
120  vec_free (ip4_addrs);
121  vec_free (ip4_masks);
122  vec_free (ip6_addrs);
123  vec_free (ip6_masks);
124 }
125 
126 static clib_error_t *
127 ip_address_delete_cleanup (vnet_main_t * vnm, u32 hw_if_index, u32 is_create)
128 {
131 
132  if (is_create)
133  return 0;
134 
135  hw = vnet_get_hw_interface (vnm, hw_if_index);
136 
138  return 0;
139 }
140 
142 
143 static clib_error_t *
145  unformat_input_t * input, vlib_cli_command_t * cmd)
146 {
147  vnet_main_t *vnm = vnet_get_main ();
148  ip4_address_t a4;
149  ip6_address_t a6;
150  clib_error_t *error = 0;
151  u32 sw_if_index, length, is_del;
152 
153  sw_if_index = ~0;
154  is_del = 0;
155 
156  if (unformat (input, "del"))
157  is_del = 1;
158 
159  if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
160  {
161  error = clib_error_return (0, "unknown interface `%U'",
162  format_unformat_error, input);
163  goto done;
164  }
165 
166  if (is_del && unformat (input, "all"))
167  ip_del_all_interface_addresses (vm, sw_if_index);
168  else if (unformat (input, "%U/%d", unformat_ip4_address, &a4, &length))
169  error = ip4_add_del_interface_address (vm, sw_if_index, &a4, length,
170  is_del);
171  else if (unformat (input, "%U/%d", unformat_ip6_address, &a6, &length))
172  error = ip6_add_del_interface_address (vm, sw_if_index, &a6, length,
173  is_del);
174  else
175  {
176  error = clib_error_return (0, "expected IP4/IP6 address/length `%U'",
177  format_unformat_error, input);
178  goto done;
179  }
180 
181 
182 done:
183  return error;
184 }
185 
186 /*?
187  * Add an IP Address to an interface or remove and IP Address from an interface.
188  * The IP Address can be an IPv4 or an IPv6 address. Interfaces may have multiple
189  * IPv4 and IPv6 addresses. There is no concept of primary vs. secondary
190  * interface addresses; they're just addresses.
191  *
192  * To display the addresses associated with a given interface, use the command
193  * '<em>show interface address <interface></em>'.
194  *
195  * Note that the debug CLI does not enforce classful mask-width / addressing
196  * constraints.
197  *
198  * @cliexpar
199  * @parblock
200  * An example of how to add an IPv4 address to an interface:
201  * @cliexcmd{set interface ip address GigabitEthernet2/0/0 172.16.2.12/24}
202  *
203  * An example of how to add an IPv6 address to an interface:
204  * @cliexcmd{set interface ip address GigabitEthernet2/0/0 @::a:1:1:0:7/126}
205  *
206  * To delete a specific interface ip address:
207  * @cliexcmd{set interface ip address GigabitEthernet2/0/0 172.16.2.12/24 del}
208  *
209  * To delete all interfaces addresses (IPv4 and IPv6):
210  * @cliexcmd{set interface ip address GigabitEthernet2/0/0 del all}
211  * @endparblock
212  ?*/
213 /* *INDENT-OFF* */
214 VLIB_CLI_COMMAND (set_interface_ip_address_command, static) = {
215  .path = "set interface ip address",
216  .function = add_del_ip_address,
217  .short_help = "set interface ip address [del] <interface> <ip-addr>/<mask> | [all]",
218 };
219 /* *INDENT-ON* */
220 
221 /* Dummy init function to get us linked in. */
222 static clib_error_t *
224 {
225  return 0;
226 }
227 
229 
230 /*
231  * fd.io coding-style-patch-verification: ON
232  *
233  * Local Variables:
234  * eval: (c-set-style "gnu")
235  * End:
236  */
#define foreach_ip_interface_address(lm, a, sw_if_index, loop, body)
Definition: lookup.h:179
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:337
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
void ip_del_all_interface_addresses(vlib_main_t *vm, u32 sw_if_index)
Definition: ip46_cli.c:80
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
ip_lookup_main_t lookup_main
Definition: ip4.h:97
unformat_function_t unformat_vnet_sw_interface
static clib_error_t * ip4_cli_init(vlib_main_t *vm)
Definition: ip46_cli.c:223
unformat_function_t unformat_ip4_address
Definition: format.h:76
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
#define clib_error_return(e, args...)
Definition: error.h:99
VNET_HW_INTERFACE_ADD_DEL_FUNCTION(ip_address_delete_cleanup)
clib_error_t * ip4_add_del_interface_address(vlib_main_t *vm, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 is_del)
Definition: ip4_forward.c:988
static clib_error_t * ip_address_delete_cleanup(vnet_main_t *vnm, u32 hw_if_index, u32 is_create)
Definition: ip46_cli.c:127
struct _unformat_input_t unformat_input_t
int ip6_address_compare(ip6_address_t *a1, ip6_address_t *a2)
Definition: ip46_cli.c:58
unformat_function_t unformat_ip6_address
Definition: format.h:94
vlib_main_t * vm
Definition: buffer.c:283
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:336
static clib_error_t * add_del_ip_address(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: ip46_cli.c:144
#define ARRAY_LEN(x)
Definition: clib.h:59
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
unsigned int u32
Definition: types.h:88
ip6_main_t ip6_main
Definition: ip6_forward.c:3009
ip_lookup_main_t lookup_main
Definition: ip6.h:158
IPv4 main type.
Definition: ip4.h:95
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
int ip4_address_compare(ip4_address_t *a1, ip4_address_t *a2)
Definition: ip46_cli.c:51
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:1181
u16 as_u16[8]
Definition: ip6_packet.h:49
clib_error_t * ip6_add_del_interface_address(vlib_main_t *vm, u32 sw_if_index, ip6_address_t *address, u32 address_length, u32 is_del)
Definition: ip6_forward.c:467
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972