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
, "__p2pdev") == 0) {
137 *type
= NL80211_IFTYPE_P2P_DEVICE
;
139 } else if (strcmp(tpstr
, "__p2pgo") == 0) {
140 *type
= NL80211_IFTYPE_P2P_GO
;
144 fprintf(stderr
, "invalid interface type %s\n", tpstr
);
148 static int parse_4addr_flag(const char *value
, struct nl_msg
*msg
)
150 if (strcmp(value
, "on") == 0)
151 NLA_PUT_U8(msg
, NL80211_ATTR_4ADDR
, 1);
152 else if (strcmp(value
, "off") == 0)
153 NLA_PUT_U8(msg
, NL80211_ATTR_4ADDR
, 0);
162 static int handle_interface_add(struct nl80211_state
*state
,
165 int argc
, char **argv
,
169 char *mesh_id
= NULL
;
170 enum nl80211_iftype type
;
180 tpset
= get_if_type(&argc
, &argv
, &type
, true);
185 if (strcmp(argv
[0], "mesh_id") == 0) {
194 } else if (strcmp(argv
[0], "4addr") == 0) {
197 if (parse_4addr_flag(argv
[0], msg
)) {
198 fprintf(stderr
, "4addr error\n");
203 } else if (strcmp(argv
[0], "flags") == 0) {
206 if (parse_mntr_flags(&argc
, &argv
, msg
)) {
207 fprintf(stderr
, "flags error\n");
218 NLA_PUT_STRING(msg
, NL80211_ATTR_IFNAME
, name
);
219 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, type
);
221 NLA_PUT(msg
, NL80211_ATTR_MESH_ID
, strlen(mesh_id
), mesh_id
);
227 COMMAND(interface
, add
, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*]",
228 NL80211_CMD_NEW_INTERFACE
, 0, CIB_PHY
, handle_interface_add
,
229 "Add a new virtual interface with the given configuration.\n"
231 "The flags are only used for monitor interfaces, valid flags are:\n"
233 "The mesh_id is used only for mesh mode.");
234 COMMAND(interface
, add
, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*]",
235 NL80211_CMD_NEW_INTERFACE
, 0, CIB_NETDEV
, handle_interface_add
, NULL
);
237 static int handle_interface_del(struct nl80211_state
*state
,
240 int argc
, char **argv
,
245 TOPLEVEL(del
, NULL
, NL80211_CMD_DEL_INTERFACE
, 0, CIB_NETDEV
, handle_interface_del
,
246 "Remove this virtual interface");
247 HIDDEN(interface
, del
, NULL
, NL80211_CMD_DEL_INTERFACE
, 0, CIB_NETDEV
, handle_interface_del
);
249 static char *channel_type_name(enum nl80211_channel_type channel_type
)
251 switch (channel_type
) {
252 case NL80211_CHAN_NO_HT
:
254 case NL80211_CHAN_HT20
:
256 case NL80211_CHAN_HT40MINUS
:
258 case NL80211_CHAN_HT40PLUS
:
265 static char *channel_width_name(enum nl80211_chan_width width
)
268 case NL80211_CHAN_WIDTH_20_NOHT
:
269 return "20 MHz (no HT)";
270 case NL80211_CHAN_WIDTH_20
:
272 case NL80211_CHAN_WIDTH_40
:
274 case NL80211_CHAN_WIDTH_80
:
276 case NL80211_CHAN_WIDTH_80P80
:
278 case NL80211_CHAN_WIDTH_160
:
285 static int print_iface_handler(struct nl_msg
*msg
, void *arg
)
287 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
288 struct nlattr
*tb_msg
[NL80211_ATTR_MAX
+ 1];
289 unsigned int *wiphy
= arg
;
290 const char *indent
= "";
292 nla_parse(tb_msg
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
293 genlmsg_attrlen(gnlh
, 0), NULL
);
295 if (wiphy
&& tb_msg
[NL80211_ATTR_WIPHY
]) {
296 unsigned int thiswiphy
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY
]);
298 if (*wiphy
!= thiswiphy
)
299 printf("phy#%d\n", thiswiphy
);
303 if (tb_msg
[NL80211_ATTR_IFNAME
])
304 printf("%sInterface %s\n", indent
, nla_get_string(tb_msg
[NL80211_ATTR_IFNAME
]));
306 printf("%sUnnamed/non-netdev interface\n", indent
);
307 if (tb_msg
[NL80211_ATTR_IFINDEX
])
308 printf("%s\tifindex %d\n", indent
, nla_get_u32(tb_msg
[NL80211_ATTR_IFINDEX
]));
309 if (tb_msg
[NL80211_ATTR_WDEV
])
310 printf("%s\twdev 0x%llx\n", indent
,
311 (unsigned long long)nla_get_u64(tb_msg
[NL80211_ATTR_WDEV
]));
312 if (tb_msg
[NL80211_ATTR_MAC
]) {
314 mac_addr_n2a(mac_addr
, nla_data(tb_msg
[NL80211_ATTR_MAC
]));
315 printf("%s\taddr %s\n", indent
, mac_addr
);
317 if (tb_msg
[NL80211_ATTR_SSID
]) {
318 printf("%s\tssid ", indent
);
319 print_ssid_escaped(nla_len(tb_msg
[NL80211_ATTR_SSID
]),
320 nla_data(tb_msg
[NL80211_ATTR_SSID
]));
323 if (tb_msg
[NL80211_ATTR_IFTYPE
])
324 printf("%s\ttype %s\n", indent
, iftype_name(nla_get_u32(tb_msg
[NL80211_ATTR_IFTYPE
])));
325 if (!wiphy
&& tb_msg
[NL80211_ATTR_WIPHY
])
326 printf("%s\twiphy %d\n", indent
, nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY
]));
327 if (tb_msg
[NL80211_ATTR_WIPHY_FREQ
]) {
328 uint32_t freq
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_FREQ
]);
330 printf("%s\tchannel %d (%d MHz)", indent
,
331 ieee80211_frequency_to_channel(freq
), freq
);
333 if (tb_msg
[NL80211_ATTR_CHANNEL_WIDTH
]) {
334 printf(", width: %s",
335 channel_width_name(nla_get_u32(tb_msg
[NL80211_ATTR_CHANNEL_WIDTH
])));
336 if (tb_msg
[NL80211_ATTR_CENTER_FREQ1
])
337 printf(", center1: %d MHz",
338 nla_get_u32(tb_msg
[NL80211_ATTR_CENTER_FREQ1
]));
339 if (tb_msg
[NL80211_ATTR_CENTER_FREQ2
])
340 printf(", center2: %d MHz",
341 nla_get_u32(tb_msg
[NL80211_ATTR_CENTER_FREQ2
]));
342 } else if (tb_msg
[NL80211_ATTR_WIPHY_CHANNEL_TYPE
]) {
343 enum nl80211_channel_type channel_type
;
345 channel_type
= nla_get_u32(tb_msg
[NL80211_ATTR_WIPHY_CHANNEL_TYPE
]);
346 printf(" %s", channel_type_name(channel_type
));
355 static int handle_interface_info(struct nl80211_state
*state
,
358 int argc
, char **argv
,
361 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_iface_handler
, NULL
);
364 TOPLEVEL(info
, NULL
, NL80211_CMD_GET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_info
,
365 "Show information for this interface.");
367 static int handle_interface_set(struct nl80211_state
*state
,
370 int argc
, char **argv
,
376 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, NL80211_IFTYPE_MONITOR
);
378 switch (parse_mntr_flags(&argc
, &argv
, msg
)) {
382 fprintf(stderr
, "failed to allocate flags\n");
385 fprintf(stderr
, "unknown flag %s\n", *argv
);
393 COMMAND(set
, monitor
, "<flag>*",
394 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_set
,
395 "Set monitor flags. Valid flags are:\n"
398 static int handle_interface_meshid(struct nl80211_state
*state
,
401 int argc
, char **argv
,
404 char *mesh_id
= NULL
;
411 NLA_PUT(msg
, NL80211_ATTR_MESH_ID
, strlen(mesh_id
), mesh_id
);
417 COMMAND(set
, meshid
, "<meshid>",
418 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_meshid
, NULL
);
420 static unsigned int dev_dump_wiphy
;
422 static int handle_dev_dump(struct nl80211_state
*state
,
425 int argc
, char **argv
,
429 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, print_iface_handler
, &dev_dump_wiphy
);
432 TOPLEVEL(dev
, NULL
, NL80211_CMD_GET_INTERFACE
, NLM_F_DUMP
, CIB_NONE
, handle_dev_dump
,
433 "List all network interfaces for wireless hardware.");
435 static int handle_interface_type(struct nl80211_state
*state
,
438 int argc
, char **argv
,
441 enum nl80211_iftype type
;
444 tpset
= get_if_type(&argc
, &argv
, &type
, false);
451 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, type
);
457 COMMAND(set
, type
, "<type>",
458 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_type
,
459 "Set interface type/mode.\n"
462 static int handle_interface_4addr(struct nl80211_state
*state
,
465 int argc
, char **argv
,
470 return parse_4addr_flag(argv
[0], msg
);
472 COMMAND(set
, 4addr
, "<on|off>",
473 NL80211_CMD_SET_INTERFACE
, 0, CIB_NETDEV
, handle_interface_4addr
,
474 "Set interface 4addr (WDS) mode.");
476 static int handle_interface_noack_map(struct nl80211_state
*state
,
479 int argc
, char **argv
,
488 noack_map
= strtoul(argv
[0], &end
, 16);
492 NLA_PUT_U16(msg
, NL80211_ATTR_NOACK_MAP
, noack_map
);
499 COMMAND(set
, noack_map
, "<map>",
500 NL80211_CMD_SET_NOACK_MAP
, 0, CIB_NETDEV
, handle_interface_noack_map
,
501 "Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO)");
504 static int handle_interface_wds_peer(struct nl80211_state
*state
,
507 int argc
, char **argv
,
510 unsigned char mac_addr
[ETH_ALEN
];
515 if (mac_addr_a2n(mac_addr
, argv
[0])) {
516 fprintf(stderr
, "Invalid MAC address\n");
526 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, mac_addr
);
532 COMMAND(set
, peer
, "<MAC address>",
533 NL80211_CMD_SET_WDS_PEER
, 0, CIB_NETDEV
, handle_interface_wds_peer
,
534 "Set interface WDS peer.");
536 static int set_mcast_rate(struct nl80211_state
*state
,
539 int argc
, char **argv
,
546 printf("Invalid parameters!\n");
550 rate
= strtod(argv
[0], &end
);
554 NLA_PUT_U32(msg
, NL80211_ATTR_MCAST_RATE
, (int)(rate
* 10));
561 COMMAND(set
, mcast_rate
, "<rate in Mbps>",
562 NL80211_CMD_SET_MCAST_RATE
, 0, CIB_NETDEV
, set_mcast_rate
,
563 "Set the multicast bitrate.");