5 #include <netlink/genl/genl.h>
6 #include <netlink/genl/family.h>
7 #include <netlink/genl/ctrl.h>
8 #include <netlink/msg.h>
9 #include <netlink/attr.h>
17 typedef struct _any_t
{
26 /* describes a mesh parameter */
27 struct mesh_param_descr
{
29 enum nl80211_meshconf_params mesh_param_num
;
30 int (*nla_put_fn
)(struct nl_msg
*, int, _any
*);
31 uint32_t (*parse_fn
)(const char*, _any
*);
32 void (*nla_print_fn
)(struct nlattr
*);
35 /* utility functions for manipulating and printing u8/u16/u32 values and
37 static int _my_nla_put_u8(struct nl_msg
*n
, int mesh_param_num
, _any
*value
)
39 return nla_put(n
, mesh_param_num
, sizeof(uint8_t), &value
->u
.as_8
);
42 static int _my_nla_put_u16(struct nl_msg
*n
, int mesh_param_num
, _any
*value
)
44 return nla_put(n
, mesh_param_num
, sizeof(uint16_t), &value
->u
.as_16
);
47 static int _my_nla_put_u32(struct nl_msg
*n
, int mesh_param_num
, _any
*value
)
49 return nla_put(n
, mesh_param_num
, sizeof(uint32_t), &value
->u
.as_32
);
52 static uint32_t _parse_u8(const char *str
, _any
*ret
)
55 unsigned long int v
= strtoul(str
, &endptr
, 10);
60 ret
->u
.as_8
= (uint8_t)v
;
64 static uint32_t _parse_u8_as_bool(const char *str
, _any
*ret
)
67 unsigned long int v
= strtoul(str
, &endptr
, 10);
72 ret
->u
.as_8
= (uint8_t)v
;
76 static uint32_t _parse_u16(const char *str
, _any
*ret
)
79 long int v
= strtol(str
, &endptr
, 10);
82 if ((v
< 0) || (v
> 0xffff))
84 ret
->u
.as_16
= (uint16_t)v
;
88 static uint32_t _parse_u32(const char *str
, _any
*ret
)
91 long long int v
= strtoll(str
, &endptr
, 10);
94 if ((v
< 0) || (v
> 0xffffffff))
96 ret
->u
.as_32
= (uint32_t)v
;
100 static uint32_t _parse_s32(const char *str
, _any
*ret
)
103 long int v
= strtol(str
, &endptr
, 10);
108 ret
->u
.as_s32
= (int32_t)v
;
112 static uint32_t _parse_u32_power_mode(const char *str
, _any
*ret
)
116 /* Parse attribute for the name of power mode */
117 if (!strcmp(str
, "active"))
118 v
= NL80211_MESH_POWER_ACTIVE
;
119 else if (!strcmp(str
, "light"))
120 v
= NL80211_MESH_POWER_LIGHT_SLEEP
;
121 else if (!strcmp(str
, "deep"))
122 v
= NL80211_MESH_POWER_DEEP_SLEEP
;
126 ret
->u
.as_32
= (uint32_t)v
;
130 static void _print_u8(struct nlattr
*a
)
132 printf("%d", nla_get_u8(a
));
135 static void _print_u16(struct nlattr
*a
)
137 printf("%d", nla_get_u16(a
));
140 static void _print_u16_timeout(struct nlattr
*a
)
142 printf("%d milliseconds", nla_get_u16(a
));
145 static void _print_u16_in_TUs(struct nlattr
*a
)
147 printf("%d TUs", nla_get_u16(a
));
150 static void _print_u32(struct nlattr
*a
)
152 printf("%d", nla_get_u32(a
));
155 static void _print_u32_timeout(struct nlattr
*a
)
157 printf("%u milliseconds", nla_get_u32(a
));
160 static void _print_u32_in_seconds(struct nlattr
*a
)
162 printf("%d seconds", nla_get_u32(a
));
165 static void _print_u32_in_TUs(struct nlattr
*a
)
167 printf("%d TUs", nla_get_u32(a
));
170 static void _print_u32_power_mode(struct nlattr
*a
)
172 unsigned long v
= nla_get_u32(a
);
175 case NL80211_MESH_POWER_ACTIVE
:
178 case NL80211_MESH_POWER_LIGHT_SLEEP
:
181 case NL80211_MESH_POWER_DEEP_SLEEP
:
190 static void _print_s32_in_dBm(struct nlattr
*a
)
192 printf("%d dBm", (int32_t) nla_get_u32(a
));
196 /* The current mesh parameters */
197 const static struct mesh_param_descr _mesh_param_descrs
[] =
199 {"mesh_retry_timeout",
200 NL80211_MESHCONF_RETRY_TIMEOUT
,
201 _my_nla_put_u16
, _parse_u16
, _print_u16_timeout
},
202 {"mesh_confirm_timeout",
203 NL80211_MESHCONF_CONFIRM_TIMEOUT
,
204 _my_nla_put_u16
, _parse_u16
, _print_u16_timeout
},
205 {"mesh_holding_timeout",
206 NL80211_MESHCONF_HOLDING_TIMEOUT
,
207 _my_nla_put_u16
, _parse_u16
, _print_u16_timeout
},
208 {"mesh_max_peer_links",
209 NL80211_MESHCONF_MAX_PEER_LINKS
,
210 _my_nla_put_u16
, _parse_u16
, _print_u16
},
212 NL80211_MESHCONF_MAX_RETRIES
,
213 _my_nla_put_u8
, _parse_u8
, _print_u8
},
215 NL80211_MESHCONF_TTL
,
216 _my_nla_put_u8
, _parse_u8
, _print_u8
},
218 NL80211_MESHCONF_ELEMENT_TTL
,
219 _my_nla_put_u8
, _parse_u8
, _print_u8
},
220 {"mesh_auto_open_plinks",
221 NL80211_MESHCONF_AUTO_OPEN_PLINKS
,
222 _my_nla_put_u8
, _parse_u8_as_bool
, _print_u8
},
223 {"mesh_hwmp_max_preq_retries",
224 NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
,
225 _my_nla_put_u8
, _parse_u8
, _print_u8
},
226 {"mesh_path_refresh_time",
227 NL80211_MESHCONF_PATH_REFRESH_TIME
,
228 _my_nla_put_u32
, _parse_u32
, _print_u32_timeout
},
229 {"mesh_min_discovery_timeout",
230 NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
,
231 _my_nla_put_u16
, _parse_u16
, _print_u16_timeout
},
232 {"mesh_hwmp_active_path_timeout",
233 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
,
234 _my_nla_put_u32
, _parse_u32
, _print_u32_in_TUs
},
235 {"mesh_hwmp_preq_min_interval",
236 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
,
237 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
238 {"mesh_hwmp_net_diameter_traversal_time",
239 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
240 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
241 {"mesh_hwmp_rootmode", NL80211_MESHCONF_HWMP_ROOTMODE
,
242 _my_nla_put_u8
, _parse_u8
, _print_u8
},
243 {"mesh_hwmp_rann_interval", NL80211_MESHCONF_HWMP_RANN_INTERVAL
,
244 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
245 {"mesh_gate_announcements", NL80211_MESHCONF_GATE_ANNOUNCEMENTS
,
246 _my_nla_put_u8
, _parse_u8
, _print_u8
},
247 {"mesh_fwding", NL80211_MESHCONF_FORWARDING
,
248 _my_nla_put_u8
, _parse_u8_as_bool
, _print_u8
},
249 {"mesh_sync_offset_max_neighor",
250 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR
,
251 _my_nla_put_u32
, _parse_u32
, _print_u32
},
252 {"mesh_rssi_threshold", NL80211_MESHCONF_RSSI_THRESHOLD
,
253 _my_nla_put_u32
, _parse_s32
, _print_s32_in_dBm
},
254 {"mesh_hwmp_active_path_to_root_timeout",
255 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT
,
256 _my_nla_put_u32
, _parse_u32
, _print_u32_in_TUs
},
257 {"mesh_hwmp_root_interval", NL80211_MESHCONF_HWMP_ROOT_INTERVAL
,
258 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
259 {"mesh_hwmp_confirmation_interval",
260 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL
,
261 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
262 {"mesh_power_mode", NL80211_MESHCONF_POWER_MODE
,
263 _my_nla_put_u32
, _parse_u32_power_mode
, _print_u32_power_mode
},
264 {"mesh_awake_window", NL80211_MESHCONF_AWAKE_WINDOW
,
265 _my_nla_put_u16
, _parse_u16
, _print_u16_in_TUs
},
266 {"mesh_plink_timeout", NL80211_MESHCONF_PLINK_TIMEOUT
,
267 _my_nla_put_u32
, _parse_u32
, _print_u32_in_seconds
},
270 static void print_all_mesh_param_descr(void)
274 printf("Possible mesh parameters are:\n");
276 for (i
= 0; i
< ARRAY_SIZE(_mesh_param_descrs
); i
++)
277 printf(" - %s\n", _mesh_param_descrs
[i
].name
);
280 static const struct mesh_param_descr
*find_mesh_param(const char *name
)
284 /* Find out what mesh parameter we want to change. */
285 for (i
= 0; i
< ARRAY_SIZE(_mesh_param_descrs
); i
++) {
286 if (strcmp(_mesh_param_descrs
[i
].name
, name
) == 0)
287 return _mesh_param_descrs
+ i
;
290 print_all_mesh_param_descr();
295 static int set_interface_meshparam(struct nl80211_state
*state
,
297 int argc
, char **argv
,
300 const struct mesh_param_descr
*mdescr
;
301 struct nlattr
*container
;
305 container
= nla_nest_start(msg
, NL80211_ATTR_MESH_PARAMS
);
317 memset(&any
, 0, sizeof(_any
));
320 value
= strchr(name
, '=');
327 /* backward compat -- accept w/o '=' */
329 printf("Must specify a value for %s.\n", name
);
337 mdescr
= find_mesh_param(name
);
341 /* Parse the new value */
342 ret
= mdescr
->parse_fn(value
, &any
);
344 if (mdescr
->mesh_param_num
345 == NL80211_MESHCONF_POWER_MODE
)
346 printf("%s must be set to active, light or "
347 "deep.\n", mdescr
->name
);
349 printf("%s must be set to a number "
350 "between 0 and %u\n",
356 err
= mdescr
->nla_put_fn(msg
, mdescr
->mesh_param_num
, &any
);
360 nla_nest_end(msg
, container
);
365 COMMAND(set
, mesh_param
, "<param>=<value> [<param>=<value>]*",
366 NL80211_CMD_SET_MESH_PARAMS
, 0, CIB_NETDEV
, set_interface_meshparam
,
367 "Set mesh parameter (run command without any to see available ones).");
370 static int print_mesh_param_handler(struct nl_msg
*msg
, void *arg
)
372 const struct mesh_param_descr
*mdescr
= arg
;
373 struct nlattr
*attrs
[NL80211_ATTR_MAX
+ 1];
374 struct nlattr
*parent_attr
;
375 struct nlattr
*mesh_params
[NL80211_MESHCONF_ATTR_MAX
+ 1];
376 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
378 /* locate NL80211_ATTR_MESH_PARAMS */
379 nla_parse(attrs
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
380 genlmsg_attrlen(gnlh
, 0), NULL
);
381 parent_attr
= attrs
[NL80211_ATTR_MESH_PARAMS
];
385 /* unpack the mesh parameters */
386 if (nla_parse_nested(mesh_params
, NL80211_MESHCONF_ATTR_MAX
,
393 for (i
= 0; i
< ARRAY_SIZE(_mesh_param_descrs
); i
++) {
394 mdescr
= &_mesh_param_descrs
[i
];
395 printf("%s = ", mdescr
->name
);
396 mdescr
->nla_print_fn(mesh_params
[mdescr
->mesh_param_num
]);
402 /* print out the mesh parameter */
403 mdescr
->nla_print_fn(mesh_params
[mdescr
->mesh_param_num
]);
408 static int get_interface_meshparam(struct nl80211_state
*state
,
410 int argc
, char **argv
,
413 const struct mesh_param_descr
*mdescr
= NULL
;
419 mdescr
= find_mesh_param(argv
[0]);
424 register_handler(print_mesh_param_handler
, (void *)mdescr
);
428 COMMAND(get
, mesh_param
, "[<param>]",
429 NL80211_CMD_GET_MESH_PARAMS
, 0, CIB_NETDEV
, get_interface_meshparam
,
430 "Retrieve mesh parameter (run command without any to see available ones).");
432 static int join_mesh(struct nl80211_state
*state
,
433 struct nl_msg
*msg
, int argc
, char **argv
,
436 struct nlattr
*container
;
438 unsigned char rates
[NL80211_MAX_SUPP_RATES
];
439 int bintval
, dtim_period
, i
, n_rates
= 0;
440 char *end
, *value
= NULL
, *sptr
= NULL
;
441 unsigned long freq
= 0;
442 static const struct {
446 int chantype
; /* for older kernel */
447 } *chanmode_selected
= NULL
, chanmode
[] = {
449 .width
= NL80211_CHAN_WIDTH_20
,
451 .chantype
= NL80211_CHAN_HT20
},
453 .width
= NL80211_CHAN_WIDTH_40
,
455 .chantype
= NL80211_CHAN_HT40PLUS
},
457 .width
= NL80211_CHAN_WIDTH_40
,
459 .chantype
= NL80211_CHAN_HT40MINUS
},
461 .width
= NL80211_CHAN_WIDTH_20_NOHT
,
463 .chantype
= NL80211_CHAN_NO_HT
},
469 NLA_PUT(msg
, NL80211_ATTR_MESH_ID
, strlen(argv
[0]), argv
[0]);
474 if (argc
> 1 && strcmp(argv
[0], "freq") == 0) {
478 freq
= strtoul(argv
[0], &end
, 10);
481 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, freq
);
489 for (i
= 0; i
< ARRAY_SIZE(chanmode
); i
++) {
490 if (strcasecmp(chanmode
[i
].name
, argv
[0]) == 0) {
491 chanmode_selected
= &chanmode
[i
];
496 if (chanmode_selected
) {
497 NLA_PUT_U32(msg
, NL80211_ATTR_CHANNEL_WIDTH
,
498 chanmode_selected
->width
);
499 NLA_PUT_U32(msg
, NL80211_ATTR_CENTER_FREQ1
,
500 freq
+ chanmode_selected
->freq1_diff
);
501 if (chanmode_selected
->chantype
!= -1)
503 NL80211_ATTR_WIPHY_CHANNEL_TYPE
,
504 chanmode_selected
->chantype
);
512 if (argc
> 1 && strcmp(argv
[0], "basic-rates") == 0) {
516 value
= strtok_r(argv
[0], ",", &sptr
);
518 while (value
&& n_rates
< NL80211_MAX_SUPP_RATES
) {
519 rate
= strtod(value
, &end
);
520 rates
[n_rates
] = rate
* 2;
522 /* filter out suspicious values */
523 if (*end
!= '\0' || !rates
[n_rates
] ||
524 rate
*2 != rates
[n_rates
])
528 value
= strtok_r(NULL
, ",", &sptr
);
531 NLA_PUT(msg
, NL80211_ATTR_BSS_BASIC_RATES
, n_rates
, rates
);
537 if (argc
> 1 && strcmp(argv
[0], "mcast-rate") == 0) {
541 rate
= strtod(argv
[0], &end
);
545 NLA_PUT_U32(msg
, NL80211_ATTR_MCAST_RATE
, (int)(rate
* 10));
550 if (argc
> 1 && strcmp(argv
[0], "beacon-interval") == 0) {
554 bintval
= strtoul(argv
[0], &end
, 10);
558 NLA_PUT_U32(msg
, NL80211_ATTR_BEACON_INTERVAL
, bintval
);
563 if (argc
> 1 && strcmp(argv
[0], "dtim-period") == 0) {
567 dtim_period
= strtoul(argv
[0], &end
, 10);
571 NLA_PUT_U32(msg
, NL80211_ATTR_DTIM_PERIOD
, dtim_period
);
576 container
= nla_nest_start(msg
, NL80211_ATTR_MESH_SETUP
);
580 if (argc
> 1 && strcmp(argv
[0], "vendor_sync") == 0) {
583 if (strcmp(argv
[0], "on") == 0)
585 NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC
, 1);
588 NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC
, 0);
592 /* parse and put other NL80211_ATTR_MESH_SETUP elements here */
594 nla_nest_end(msg
, container
);
598 return set_interface_meshparam(state
, msg
, argc
, argv
, id
);
602 COMMAND(mesh
, join
, "<mesh ID> [[freq <freq in MHz> <HT20|HT40+|HT40-|NOHT>]"
603 " [basic-rates <rate in Mbps,rate2,...>]], [mcast-rate <rate in Mbps>]"
604 " [beacon-interval <time in TUs>] [dtim-period <value>]"
605 " [vendor_sync on|off] [<param>=<value>]*",
606 NL80211_CMD_JOIN_MESH
, 0, CIB_NETDEV
, join_mesh
,
607 "Join a mesh with the given mesh ID with frequency, basic-rates,\n"
608 "mcast-rate and mesh parameters. Basic-rates are applied only if\n"
609 "frequency is provided.");
611 static int leave_mesh(struct nl80211_state
*state
,
612 struct nl_msg
*msg
, int argc
, char **argv
,
620 COMMAND(mesh
, leave
, NULL
, NL80211_CMD_LEAVE_MESH
, 0, CIB_NETDEV
, leave_mesh
,