6 #include <netlink/genl/genl.h>
7 #include <netlink/genl/family.h>
8 #include <netlink/genl/ctrl.h>
9 #include <netlink/msg.h>
10 #include <netlink/attr.h>
15 #define VALID_FLAGS "none: no special flags\n"\
16 "fcsfail: show frames with FCS errors\n"\
17 "control: show control frames\n"\
18 "otherbss: show frames from other BSSes\n"\
19 "cook: use cooked mode"
23 static char *mntr_flags
[NL80211_MNTR_FLAG_MAX
+ 1] = {
32 static int parse_mntr_flags(int *_argc
, char ***_argv
,
37 enum nl80211_mntr_flags flag
;
41 flags
= nlmsg_alloc();
47 for (flag
= __NL80211_MNTR_FLAG_INVALID
;
48 flag
<= NL80211_MNTR_FLAG_MAX
; flag
++) {
49 if (strcmp(*argv
, mntr_flags
[flag
]) == 0) {
52 * This shouldn't be adding "flag" if that is
53 * zero, but due to a problem in the kernel's
54 * nl80211 code (using NLA_NESTED policy) it
55 * will reject an empty nested attribute but
56 * not one that contains an invalid attribute
58 NLA_PUT_FLAG(flags
, flag
);
70 nla_put_nested(msg
, NL80211_ATTR_MNTR_FLAGS
, flags
);
83 #define IFACE_TYPES "Valid interface types are: managed, ibss, monitor, mesh, wds."
85 /* return 0 if ok, internal error otherwise */
86 static int get_if_type(int *argc
, char ***argv
, enum nl80211_iftype
*type
,
91 if (*argc
< 1 + !!need_type
)
94 if (need_type
&& strcmp((*argv
)[0], "type"))
97 tpstr
= (*argv
)[!!need_type
];
98 *argc
-= 1 + !!need_type
;
99 *argv
+= 1 + !!need_type
;
101 if (strcmp(tpstr
, "adhoc") == 0 ||
102 strcmp(tpstr
, "ibss") == 0) {
103 *type
= NL80211_IFTYPE_ADHOC
;
105 } else if (strcmp(tpstr
, "monitor") == 0) {
106 *type
= NL80211_IFTYPE_MONITOR
;
108 } else if (strcmp(tpstr
, "master") == 0 ||
109 strcmp(tpstr
, "ap") == 0) {
110 *type
= NL80211_IFTYPE_UNSPECIFIED
;
111 fprintf(stderr
, "You need to run a management daemon, e.g. hostapd,\n");
112 fprintf(stderr
, "see http://wireless.kernel.org/en/users/Documentation/hostapd\n");
113 fprintf(stderr
, "for more information on how to do that.\n");
115 } else if (strcmp(tpstr
, "__ap") == 0) {
116 *type
= NL80211_IFTYPE_AP
;
118 } else if (strcmp(tpstr
, "__ap_vlan") == 0) {
119 *type
= NL80211_IFTYPE_AP_VLAN
;
121 } else if (strcmp(tpstr
, "wds") == 0) {
122 *type
= NL80211_IFTYPE_WDS
;
124 } else if (strcmp(tpstr
, "managed") == 0 ||
125 strcmp(tpstr
, "mgd") == 0 ||
126 strcmp(tpstr
, "station") == 0) {
127 *type
= NL80211_IFTYPE_STATION
;
129 } else if (strcmp(tpstr
, "mp") == 0 ||
130 strcmp(tpstr
, "mesh") == 0) {
131 *type
= NL80211_IFTYPE_MESH_POINT
;
133 } else if (strcmp(tpstr
, "__p2pcl") == 0) {
134 *type
= NL80211_IFTYPE_P2P_CLIENT
;
136 } else if (strcmp(tpstr
, "__p2pgo") == 0) {
137 *type
= NL80211_IFTYPE_P2P_GO
;
141 fprintf(stderr
, "invalid interface type %s\n", tpstr
);
145 static int parse_4addr_flag(const char *value
, struct nl_msg
*msg
)
147 if (strcmp(value
, "on") == 0)
148 NLA_PUT_U8(msg
, NL80211_ATTR_4ADDR
, 1);
149 else if (strcmp(value
, "off") == 0)
150 NLA_PUT_U8(msg
, NL80211_ATTR_4ADDR
, 0);
159 static int handle_interface_add(struct nl80211_state
*state
,
162 int argc
, char **argv
)
165 char *mesh_id
= NULL
;
166 enum nl80211_iftype type
;
176 tpset
= get_if_type(&argc
, &argv
, &type
, true);
181 if (strcmp(argv
[0], "mesh_id") == 0) {
190 } else if (strcmp(argv
[0], "4addr") == 0) {
193 if (parse_4addr_flag(argv
[0], msg
)) {
194 fprintf(stderr
, "4addr error\n");
199 } else if (strcmp(argv
[0], "flags") == 0) {
202 if (parse_mntr_flags(&argc
, &argv
, msg
)) {
203 fprintf(stderr
, "flags error\n");
214 NLA_PUT_STRING(msg
, NL80211_ATTR_IFNAME
, name
);
215 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, type
);
217 NLA_PUT(msg
, NL80211_ATTR_MESH_ID
, strlen(mesh_id
), mesh_id
);
223 COMMAND(interface
, add
, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*]",
224 NL80211_CMD_NEW_INTERFACE
, 0, CIB_PHY
, handle_interface_add
,
225 "Add a new virtual interface with the given configuration.\n"
227 "The flags are only used for monitor interfaces, valid flags are:\n"
229 "The mesh_id is used only for mesh mode.");
230 COMMAND(interface
, add
, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*]",
231 NL80211_CMD_NEW_INTERFACE
, 0, CIB_NETDEV
, handle_interface_add
, NULL
);
233 static int handle_interface_del(struct nl80211_state
*state
,
236 int argc
, char **argv
)
240 TOPLEVEL(del
, NULL
, NL80211_CMD_DEL_INTERFACE
, 0, CIB_NETDEV
, handle_interface_del
,
241 "Remove this virtual interface");
242 HIDDEN(interface
, del
, NULL
, NL80211_CMD_DEL_INTERFACE
, 0, CIB_NETDEV
, handle_interface_del
);
244 static int print_iface_handler(struct nl_msg
*msg
, void *arg
)
246 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
247 struct nlattr
*tb_msg
[NL80211_ATTR_MAX
+ 1];
248 unsigned int *wiphy
= arg
;
249 const char *indent
= "";
251 nla_parse(tb_msg
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
252 genlmsg_attrlen(gnlh
, 0), NULL
);
254 if (wiphy
&& tb_msg
[NL80211_ATTR_WIPHY
]) {
255 unsigned int thiswiphy
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY
]);
257 if (*wiphy
!= thiswiphy
)
258 printf("phy#%d\n", thiswiphy
);
262 if (tb_msg
[NL80211_ATTR_IFNAME
])
263 printf("%sInterface %s\n", indent
, nla_get_string(tb_msg
[NL80211_ATTR_IFNAME
]));
264 if (tb_msg
[NL80211_ATTR_IFINDEX
])
265 printf("%s\tifindex %d\n", indent
, nla_get_u32(tb_msg
[NL80211_ATTR_IFINDEX
]));
266 if (tb_msg
[NL80211_ATTR_IFTYPE
])
267 printf("%s\ttype %s\n", indent
, iftype_name(nla_get_u32(tb_msg
[NL80211_ATTR_IFTYPE
])));
272 static int handle_interface_info(struct nl80211_state
*state
,
275 int argc
, char **argv
)
277 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_iface_handler
, NULL
);
280 TOPLEVEL(info
, NULL
, NL80211_CMD_GET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_info
,
281 "Show information for this interface.");
283 static int handle_interface_set(struct nl80211_state
*state
,
286 int argc
, char **argv
)
291 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_MONITOR
);
293 switch (parse_mntr_flags(&argc
, &argv
, msg
)) {
297 fprintf(stderr
, "failed to allocate flags\n");
300 fprintf(stderr
, "unknown flag %s\n", *argv
);
308 COMMAND(set
, monitor
, "<flag>*",
309 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_set
,
310 "Set monitor flags. Valid flags are:\n"
313 static int handle_interface_meshid(struct nl80211_state
*state
,
316 int argc
, char **argv
)
318 char *mesh_id
= NULL
;
325 NLA_PUT(msg
, NL80211_ATTR_MESH_ID
, strlen(mesh_id
), mesh_id
);
331 COMMAND(set
, meshid
, "<meshid>",
332 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_meshid
, NULL
);
334 static unsigned int dev_dump_wiphy
;
336 static int handle_dev_dump(struct nl80211_state
*state
,
339 int argc
, char **argv
)
342 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_iface_handler
, &dev_dump_wiphy
);
345 TOPLEVEL(dev
, NULL
, NL80211_CMD_GET_INTERFACE
, NLM_F_DUMP
, CIB_NONE
, handle_dev_dump
,
346 "List all network interfaces for wireless hardware.");
348 static int handle_interface_type(struct nl80211_state
*state
,
351 int argc
, char **argv
)
353 enum nl80211_iftype type
;
356 tpset
= get_if_type(&argc
, &argv
, &type
, false);
363 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, type
);
369 COMMAND(set
, type
, "<type>",
370 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_type
,
371 "Set interface type/mode.\n"
374 static int handle_interface_4addr(struct nl80211_state
*state
,
377 int argc
, char **argv
)
381 return parse_4addr_flag(argv
[0], msg
);
383 COMMAND(set
, 4addr
, "<on|off>",
384 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_4addr
,
385 "Set interface 4addr (WDS) mode.");
387 static int handle_interface_wds_peer(struct nl80211_state
*state
,
390 int argc
, char **argv
)
392 unsigned char mac_addr
[ETH_ALEN
];
397 if (mac_addr_a2n(mac_addr
, argv
[0])) {
398 fprintf(stderr
, "Invalid MAC address\n");
408 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, mac_addr
);
414 COMMAND(set
, peer
, "<MAC address>",
415 NL80211_CMD_SET_WDS_PEER
, 0, CIB_NETDEV
, handle_interface_wds_peer
,
416 "Set interface WDS peer.");