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 size_t array_idx;
26
27 /* Network interfaces start at 1 */
28 if (idx == 0) {
29 return "";
30 }
31
32 if (!iface) {
33 return NULL;
34 }
35
36 array_idx = idx - 1;
37 if (array_idx >= ARRAY_SIZE(iface_index_buffer)) {
38 return NULL;
39 }
40
41 snprintk(iface_index_buffer[array_idx], MAX_IFACE_STR_LEN, "%d", (uint8_t)idx);
42
43 return iface_index_buffer[array_idx];
44 }
45
set_iface_index_help(size_t idx)46 static char *set_iface_index_help(size_t idx)
47 {
48 struct net_if *iface = net_if_get_by_index(idx);
49 size_t array_idx;
50
51 /* Network interfaces start at 1 */
52 if (idx == 0) {
53 return "";
54 }
55
56 if (!iface) {
57 return NULL;
58 }
59
60 array_idx = idx - 1;
61 if (array_idx >= ARRAY_SIZE(iface_help_buffer)) {
62 return NULL;
63 }
64
65 #if defined(CONFIG_NET_INTERFACE_NAME)
66 char name[CONFIG_NET_INTERFACE_NAME_LEN + 1];
67
68 net_if_get_name(iface, name, CONFIG_NET_INTERFACE_NAME_LEN);
69 name[CONFIG_NET_INTERFACE_NAME_LEN] = '\0';
70
71 snprintk(iface_help_buffer[array_idx], MAX_IFACE_HELP_STR_LEN,
72 "%s [%s] (%p)", name, iface2str(iface, NULL), iface);
73 #else
74 snprintk(iface_help_buffer[array_idx], MAX_IFACE_HELP_STR_LEN,
75 "[%s] (%p)", iface2str(iface, NULL), iface);
76 #endif
77
78 return iface_help_buffer[array_idx];
79 }
80
iface_index_get(size_t idx,struct shell_static_entry * entry)81 static void iface_index_get(size_t idx, struct shell_static_entry *entry)
82 {
83 entry->handler = NULL;
84 entry->help = set_iface_index_help(idx);
85 entry->subcmd = &iface_index;
86 entry->syntax = set_iface_index_buffer(idx);
87 }
88
