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 #include <zephyr/logging/log.h>
9 LOG_MODULE_DECLARE(net_shell);
10
11 #include <stdlib.h>
12
13 #if defined(CONFIG_NET_L2_VIRTUAL)
14 #include <zephyr/net/virtual.h>
15 #endif
16
17 #include "net_shell_private.h"
18
19 #if defined(CONFIG_NET_L2_VIRTUAL)
virtual_iface_cb(struct net_if * iface,void * user_data)20 static void virtual_iface_cb(struct net_if *iface, void *user_data)
21 {
22 struct net_shell_user_data *data = user_data;
23 const struct shell *sh = data->sh;
24 int *count = data->user_data;
25 char *name, buf[CONFIG_NET_L2_VIRTUAL_MAX_NAME_LEN];
26 struct net_if *orig_iface;
27
28 if (net_if_l2(iface) != &NET_L2_GET_NAME(VIRTUAL)) {
29 return;
30 }
31
32 if (*count == 0) {
33 PR("Interface Attached-To Description\n");
34 (*count)++;
35 }
36
37 orig_iface = net_virtual_get_iface(iface);
38
39 name = net_virtual_get_name(iface, buf, sizeof(buf));
40
41 PR("%d %c %s\n",
42 net_if_get_by_iface(iface),
43 orig_iface ? net_if_get_by_iface(orig_iface) + '0' : '-',
44 name);
45
46 (*count)++;
47 }
48
attached_iface_cb(struct net_if * iface,void * user_data)49 static void attached_iface_cb(struct net_if *iface, void *user_data)
50 {
51 struct net_shell_user_data *data = user_data;
52 const struct shell *sh = data->sh;
53 int *count = data->user_data;
54 char buf[CONFIG_NET_L2_VIRTUAL_MAX_NAME_LEN];
55 const char *name;
56 struct virtual_interface_context *ctx, *tmp;
57
58 if (sys_slist_is_empty(&iface->config.virtual_interfaces)) {
59 return;
60 }
61
62 if (*count == 0) {
63 PR("Interface Below-of Description\n");
64 (*count)++;
65 }
66
67 PR("%d ", net_if_get_by_iface(iface));
68
69 SYS_SLIST_FOR_EACH_CONTAINER_SAFE(&iface->config.virtual_interfaces,
70 ctx, tmp, node) {
71 if (ctx->virtual_iface == iface) {
72 continue;
73 }
74
75 PR("%d ", net_if_get_by_iface(ctx->virtual_iface));
76 }
77
78 name = net_virtual_get_name(iface, buf, sizeof(buf));
79 if (name == NULL) {
80 name = iface2str(iface, NULL);
81 }
82
83 PR(" %s\n", name);
84
85 (*count)++;
86 }
87 #endif /* CONFIG_NET_L2_VIRTUAL */
88
cmd_virtual_show(const struct shell * sh,size_t argc,char * argv[])89 static int cmd_virtual_show(const struct shell *sh, size_t argc, char *argv[])
90 {
91 ARG_UNUSED(argc);
92 ARG_UNUSED(argv);
93
94 #if defined(CONFIG_NET_L2_VIRTUAL)
95 struct net_shell_user_data user_data;
96 int count = 0;
97
98 user_data.sh = sh;
99 user_data.user_data = &count;
100
101 net_if_foreach(virtual_iface_cb, &user_data);
102
103 if (count == 0) {
104 PR("No virtual interfaces found.");
105 }
106
107 count = 0;
108 PR("\n");
109
110 net_if_foreach(attached_iface_cb, &user_data);
111 #else
112 PR_INFO("Set %s to enable %s support.\n", "CONFIG_NET_L2_VIRTUAL",
113 "virtual network interface");
114 #endif
115 return 0;
116 }
117
cmd_virtual_attach(const struct shell * sh,size_t argc,char * argv[])118 static int cmd_virtual_attach(const struct shell *sh, size_t argc, char *argv[])
119 {
120 #if defined(CONFIG_NET_L2_VIRTUAL)
121 struct net_if *virtual_iface, *lower_iface;
122 int ret;
123
124 virtual_iface = net_if_get_by_index(atoi(argv[1]));
125 if (virtual_iface == NULL) {
126 PR("No %s interface %s found.\n", "virtual", argv[1]);
127 return -ENOENT;
128 }
129
130 lower_iface = net_if_get_by_index(atoi(argv[2]));
131 if (lower_iface == NULL) {
132 PR("No %s interface %s found.\n", "such", argv[2]);
133 return -ENOENT;
134 }
135
136 ret = net_virtual_interface_attach(virtual_iface, lower_iface);
137 if (ret < 0) {
138 PR("Cannot attach interface %s to %s (%d)\n", argv[1], argv[2], ret);
139 return -ENOENT;
140 }
141 #else
142 PR_INFO("Set %s to enable %s support.\n", "CONFIG_NET_L2_VIRTUAL",
143 "virtual network interface");
144 #endif
145 return 0;
146 }
147
cmd_virtual_detach(const struct shell * sh,size_t argc,char * argv[])148 static int cmd_virtual_detach(const struct shell *sh, size_t argc, char *argv[])
149 {
150 #if defined(CONFIG_NET_L2_VIRTUAL)
151 struct net_if *virtual_iface;
152 int ret;
153
154 virtual_iface = net_if_get_by_index(atoi(argv[1]));
155 if (virtual_iface == NULL) {
156 PR("No %s interface %s found.\n", "virtual", argv[1]);
157 return -ENOENT;
158 }
159
160 ret = net_virtual_interface_attach(virtual_iface, NULL);
161 if (ret < 0) {
162 PR("Cannot detach interface %s (%d)\n", argv[1], ret);
163 return -ENOENT;
164 }
165 #else
166 PR_INFO("Set %s to enable %s support.\n", "CONFIG_NET_L2_VIRTUAL",
167 "virtual network interface");
168 #endif
169 return 0;
170 }
171
172 SHELL_STATIC_SUBCMD_SET_CREATE(virtual_commands,
173 SHELL_CMD_ARG(attach, NULL,
174 "Attach a network interface to another interface.\n"
175 "'virtual attach <upper virtual iface index> <lower iface index>'",
176 cmd_virtual_attach, 3, 0),
177 SHELL_CMD_ARG(detach, NULL,
178 "Detach a network interface from another interface.\n"
179 "'virtual detach <upper virtual iface index>'",
180 cmd_virtual_detach, 2, 0),
181 SHELL_CMD_ARG(show, NULL,
182 "Show virtual interface information.\n"
183 "'virtual show'",
184 cmd_virtual_show, 1, 1),
185 SHELL_SUBCMD_SET_END
186 );
187
188 SHELL_SUBCMD_ADD((net), virtual, &virtual_commands,
189 "Show/manipulate virtual network interfaces.",
190 cmd_virtual_show, 1, 1);
191
