1 /*
2 * Copyright (c) 2016 Intel Corporation
3 * Copyright (c) 2023 Nordic Semiconductor ASA
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8 /* Dynamic shell command completion for network interface.
9 * This is be used by multiple commands.
10 */
11
12 #define MAX_IFACE_HELP_STR_LEN sizeof("longbearername (0xabcd0123)")
13 #define MAX_IFACE_STR_LEN sizeof("xxx")
14
15 static char iface_help_buffer[MAX_IFACE_COUNT][MAX_IFACE_HELP_STR_LEN];
16 static char iface_index_buffer[MAX_IFACE_COUNT][MAX_IFACE_STR_LEN];
17
18 static void iface_index_get(size_t idx, struct shell_static_entry *entry);
19
20 SHELL_DYNAMIC_CMD_CREATE(iface_index, iface_index_get);
21
set_iface_index_buffer(size_t idx)22 static char *set_iface_index_buffer(size_t idx)
23 {
24 struct net_if *iface = net_if_get_by_index(idx);
25
26 /* Network interfaces start at 1 */
27 if (idx == 0) {
28 return "";
29 }
30
31 if (!iface) {
32 return NULL;
33 }
34
35 snprintk(iface_index_buffer[idx - 1], MAX_IFACE_STR_LEN, "%d", (uint8_t)idx);
36
37 return iface_index_buffer[idx - 1];
38 }
39
set_iface_index_help(size_t idx)40 static char *set_iface_index_help(size_t idx)
41 {
42 struct net_if *iface = net_if_get_by_index(idx);
43
44 /* Network interfaces start at 1 */
45 if (idx == 0) {
46 return "";
47 }
48
49 if (!iface) {
50 return NULL;
51 }
52
53 #if defined(CONFIG_NET_INTERFACE_NAME)
54 char name[CONFIG_NET_INTERFACE_NAME_LEN + 1];
55
56 net_if_get_name(iface, name, CONFIG_NET_INTERFACE_NAME_LEN);
57 name[CONFIG_NET_INTERFACE_NAME_LEN] = '\0';
58
59 snprintk(iface_help_buffer[idx - 1], MAX_IFACE_HELP_STR_LEN,
60 "%s [%s] (%p)", name, iface2str(iface, NULL), iface);
61 #else
62 snprintk(iface_help_buffer[idx - 1], MAX_IFACE_HELP_STR_LEN,
63 "[%s] (%p)", iface2str(iface, NULL), iface);
64 #endif
65
66 return iface_help_buffer[idx - 1];
67 }
68
iface_index_get(size_t idx,struct shell_static_entry * entry)69 static void iface_index_get(size_t idx, struct shell_static_entry *entry)
70 {
71 entry->handler = NULL;
72 entry->help = set_iface_index_help(idx);
73 entry->subcmd = &iface_index;
74 entry->syntax = set_iface_index_buffer(idx);
75 }
76
