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Commit | Line | Data |
---|---|---|
748f8489 | 1 | #include <ctype.h> |
51e9bd80 JB |
2 | #include <netlink/attr.h> |
3 | #include <errno.h> | |
4 | #include <stdbool.h> | |
3d1e8704 | 5 | #include "iw.h" |
f5f7b1d0 | 6 | #include "nl80211.h" |
3d1e8704 | 7 | |
febeb0c0 | 8 | void mac_addr_n2a(char *mac_addr, unsigned char *arg) |
3d1e8704 | 9 | { |
53e5ce7a | 10 | int i, l; |
3d1e8704 LCC |
11 | |
12 | l = 0; | |
13 | for (i = 0; i < ETH_ALEN ; i++) { | |
14 | if (i == 0) { | |
53e5ce7a | 15 | sprintf(mac_addr+l, "%02x", arg[i]); |
3d1e8704 LCC |
16 | l += 2; |
17 | } else { | |
53e5ce7a | 18 | sprintf(mac_addr+l, ":%02x", arg[i]); |
3d1e8704 LCC |
19 | l += 3; |
20 | } | |
21 | } | |
3d1e8704 LCC |
22 | } |
23 | ||
24 | int mac_addr_a2n(unsigned char *mac_addr, char *arg) | |
25 | { | |
26 | int i; | |
27 | ||
28 | for (i = 0; i < ETH_ALEN ; i++) { | |
29 | int temp; | |
30 | char *cp = strchr(arg, ':'); | |
31 | if (cp) { | |
32 | *cp = 0; | |
33 | cp++; | |
34 | } | |
35 | if (sscanf(arg, "%x", &temp) != 1) | |
36 | return -1; | |
37 | if (temp < 0 || temp > 255) | |
38 | return -1; | |
39 | ||
40 | mac_addr[i] = temp; | |
41 | if (!cp) | |
42 | break; | |
43 | arg = cp; | |
44 | } | |
45 | if (i < ETH_ALEN - 1) | |
46 | return -1; | |
47 | ||
48 | return 0; | |
49 | } | |
541ef425 | 50 | |
236d4191 JB |
51 | unsigned char *parse_hex(char *hex, size_t *outlen) |
52 | { | |
53 | size_t len = strlen(hex); | |
54 | unsigned char *result = calloc(len/2 + 2, 1); | |
55 | int pos = 0; | |
56 | ||
57 | if (!result) | |
58 | return NULL; | |
59 | ||
60 | *outlen = 0; | |
61 | ||
62 | while (1) { | |
63 | int temp; | |
64 | char *cp = strchr(hex, ':'); | |
65 | if (cp) { | |
66 | *cp = 0; | |
67 | cp++; | |
68 | } | |
69 | if (sscanf(hex, "%x", &temp) != 1) | |
70 | goto error; | |
71 | if (temp < 0 || temp > 255) | |
72 | goto error; | |
73 | ||
74 | (*outlen)++; | |
75 | ||
76 | result[pos++] = temp; | |
77 | if (!cp) | |
78 | break; | |
79 | hex = cp; | |
80 | } | |
81 | ||
82 | return result; | |
83 | error: | |
84 | free(result); | |
85 | return NULL; | |
86 | } | |
87 | ||
541ef425 JB |
88 | static const char *ifmodes[NL80211_IFTYPE_MAX + 1] = { |
89 | "unspecified", | |
90 | "IBSS", | |
34e78ed0 | 91 | "managed", |
541ef425 | 92 | "AP", |
34e78ed0 | 93 | "AP/VLAN", |
541ef425 | 94 | "WDS", |
34e78ed0 | 95 | "monitor", |
a4464243 JB |
96 | "mesh point", |
97 | "P2P-client", | |
98 | "P2P-GO", | |
541ef425 JB |
99 | }; |
100 | ||
101 | static char modebuf[100]; | |
102 | ||
103 | const char *iftype_name(enum nl80211_iftype iftype) | |
104 | { | |
105 | if (iftype <= NL80211_IFTYPE_MAX) | |
106 | return ifmodes[iftype]; | |
107 | sprintf(modebuf, "Unknown mode (%d)", iftype); | |
108 | return modebuf; | |
109 | } | |
379f8397 | 110 | |
9990c1e9 | 111 | static const char *commands[NL80211_CMD_MAX + 1] = { |
06339499 JB |
112 | [NL80211_CMD_GET_WIPHY] = "get_wiphy", |
113 | [NL80211_CMD_SET_WIPHY] = "set_wiphy", | |
114 | [NL80211_CMD_NEW_WIPHY] = "new_wiphy", | |
115 | [NL80211_CMD_DEL_WIPHY] = "del_wiphy", | |
116 | [NL80211_CMD_GET_INTERFACE] = "get_interface", | |
117 | [NL80211_CMD_SET_INTERFACE] = "set_interface", | |
118 | [NL80211_CMD_NEW_INTERFACE] = "new_interface", | |
119 | [NL80211_CMD_DEL_INTERFACE] = "del_interface", | |
120 | [NL80211_CMD_GET_KEY] = "get_key", | |
121 | [NL80211_CMD_SET_KEY] = "set_key", | |
122 | [NL80211_CMD_NEW_KEY] = "new_key", | |
123 | [NL80211_CMD_DEL_KEY] = "del_key", | |
124 | [NL80211_CMD_GET_BEACON] = "get_beacon", | |
125 | [NL80211_CMD_SET_BEACON] = "set_beacon", | |
126 | [NL80211_CMD_NEW_BEACON] = "new_beacon", | |
127 | [NL80211_CMD_DEL_BEACON] = "del_beacon", | |
128 | [NL80211_CMD_GET_STATION] = "get_station", | |
129 | [NL80211_CMD_SET_STATION] = "set_station", | |
130 | [NL80211_CMD_NEW_STATION] = "new_station", | |
131 | [NL80211_CMD_DEL_STATION] = "del_station", | |
132 | [NL80211_CMD_GET_MPATH] = "get_mpath", | |
133 | [NL80211_CMD_SET_MPATH] = "set_mpath", | |
134 | [NL80211_CMD_NEW_MPATH] = "new_mpath", | |
135 | [NL80211_CMD_DEL_MPATH] = "del_mpath", | |
136 | [NL80211_CMD_SET_BSS] = "set_bss", | |
137 | [NL80211_CMD_SET_REG] = "set_reg", | |
138 | [NL80211_CMD_REQ_SET_REG] = "reg_set_reg", | |
139 | [NL80211_CMD_GET_MESH_PARAMS] = "get_mesh_params", | |
140 | [NL80211_CMD_SET_MESH_PARAMS] = "set_mesh_params", | |
141 | [NL80211_CMD_SET_MGMT_EXTRA_IE] = "set_mgmt_extra_ie", | |
142 | [NL80211_CMD_GET_REG] = "get_reg", | |
143 | [NL80211_CMD_GET_SCAN] = "get_scan", | |
144 | [NL80211_CMD_TRIGGER_SCAN] = "trigger_scan", | |
145 | [NL80211_CMD_NEW_SCAN_RESULTS] = "new_scan_results", | |
146 | [NL80211_CMD_SCAN_ABORTED] = "scan_aborted", | |
147 | [NL80211_CMD_REG_CHANGE] = "reg_change", | |
148 | [NL80211_CMD_AUTHENTICATE] = "authenticate", | |
149 | [NL80211_CMD_ASSOCIATE] = "associate", | |
150 | [NL80211_CMD_DEAUTHENTICATE] = "deauthenticate", | |
151 | [NL80211_CMD_DISASSOCIATE] = "disassociate", | |
152 | [NL80211_CMD_MICHAEL_MIC_FAILURE] = "michael_mic_failure", | |
153 | [NL80211_CMD_REG_BEACON_HINT] = "reg_beacon_hint", | |
154 | [NL80211_CMD_JOIN_IBSS] = "join_ibss", | |
155 | [NL80211_CMD_LEAVE_IBSS] = "leave_ibss", | |
156 | [NL80211_CMD_TESTMODE] = "testmode", | |
157 | [NL80211_CMD_CONNECT] = "connect", | |
158 | [NL80211_CMD_ROAM] = "roam", | |
159 | [NL80211_CMD_DISCONNECT] = "disconnect", | |
160 | [NL80211_CMD_SET_WIPHY_NETNS] = "set_wiphy_netns", | |
161 | [NL80211_CMD_GET_SURVEY] = "get_survey", | |
162 | [NL80211_CMD_SET_PMKSA] = "set_pmksa", | |
163 | [NL80211_CMD_DEL_PMKSA] = "del_pmksa", | |
164 | [NL80211_CMD_FLUSH_PMKSA] = "flush_pmksa", | |
165 | [NL80211_CMD_REMAIN_ON_CHANNEL] = "remain_on_channel", | |
166 | [NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL] = "cancel_remain_on_channel", | |
167 | [NL80211_CMD_SET_TX_BITRATE_MASK] = "set_tx_bitrate_mask", | |
168 | [NL80211_CMD_REGISTER_ACTION] = "register_action", | |
169 | [NL80211_CMD_ACTION] = "action", | |
7b96e9e2 | 170 | [NL80211_CMD_SET_CHANNEL] = "set_channel", |
9990c1e9 MH |
171 | }; |
172 | ||
173 | static char cmdbuf[100]; | |
174 | ||
175 | const char *command_name(enum nl80211_commands cmd) | |
176 | { | |
73780397 | 177 | if (cmd <= NL80211_CMD_MAX && commands[cmd]) |
9990c1e9 MH |
178 | return commands[cmd]; |
179 | sprintf(cmdbuf, "Unknown command (%d)", cmd); | |
180 | return cmdbuf; | |
181 | } | |
182 | ||
379f8397 JB |
183 | int ieee80211_channel_to_frequency(int chan) |
184 | { | |
185 | if (chan < 14) | |
186 | return 2407 + chan * 5; | |
187 | ||
188 | if (chan == 14) | |
189 | return 2484; | |
190 | ||
191 | /* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */ | |
192 | return (chan + 1000) * 5; | |
193 | } | |
194 | ||
195 | int ieee80211_frequency_to_channel(int freq) | |
196 | { | |
197 | if (freq == 2484) | |
198 | return 14; | |
199 | ||
200 | if (freq < 2484) | |
201 | return (freq - 2407) / 5; | |
202 | ||
203 | /* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */ | |
204 | return freq/5 - 1000; | |
205 | } | |
748f8489 JB |
206 | |
207 | void print_ssid_escaped(const uint8_t len, const uint8_t *data) | |
208 | { | |
209 | int i; | |
210 | ||
211 | for (i = 0; i < len; i++) { | |
212 | if (isprint(data[i])) | |
213 | printf("%c", data[i]); | |
214 | else | |
215 | printf("\\x%.2x", data[i]); | |
216 | } | |
217 | } | |
51e9bd80 JB |
218 | |
219 | static int hex2num(char digit) | |
220 | { | |
221 | if (!isxdigit(digit)) | |
222 | return -1; | |
223 | if (isdigit(digit)) | |
224 | return digit - '0'; | |
225 | return tolower(digit) - 'a' + 10; | |
226 | } | |
227 | ||
228 | static int hex2byte(char *hex) | |
229 | { | |
230 | int d1, d2; | |
231 | ||
232 | d1 = hex2num(hex[0]); | |
233 | if (d1 < 0) | |
234 | return -1; | |
235 | d2 = hex2num(hex[1]); | |
236 | if (d2 < 0) | |
237 | return -1; | |
238 | return (d1 << 4) | d2; | |
239 | } | |
240 | ||
241 | static char *hex2bin(char *hex, char *buf) | |
242 | { | |
243 | char *result = buf; | |
244 | int d; | |
245 | ||
246 | while (hex[0]) { | |
247 | d = hex2byte(hex); | |
248 | if (d < 0) | |
249 | return NULL; | |
250 | buf[0] = d; | |
251 | buf++; | |
252 | hex += 2; | |
253 | } | |
254 | ||
255 | return result; | |
256 | } | |
257 | ||
258 | int parse_keys(struct nl_msg *msg, char **argv, int argc) | |
259 | { | |
260 | struct nlattr *keys; | |
261 | int i = 0; | |
041581ce | 262 | bool have_default = false; |
51e9bd80 JB |
263 | char keybuf[13]; |
264 | ||
265 | if (!argc) | |
266 | return 1; | |
267 | ||
268 | NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY); | |
269 | ||
270 | keys = nla_nest_start(msg, NL80211_ATTR_KEYS); | |
271 | if (!keys) | |
272 | return -ENOBUFS; | |
273 | ||
274 | do { | |
275 | char *arg = *argv; | |
276 | int pos = 0, keylen; | |
277 | struct nlattr *key = nla_nest_start(msg, ++i); | |
278 | char *keydata; | |
279 | ||
280 | if (!key) | |
281 | return -ENOBUFS; | |
282 | ||
283 | if (arg[pos] == 'd') { | |
284 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
285 | pos++; | |
286 | if (arg[pos] == ':') | |
287 | pos++; | |
041581ce | 288 | have_default = true; |
51e9bd80 JB |
289 | } |
290 | ||
291 | if (!isdigit(arg[pos])) | |
292 | goto explain; | |
293 | NLA_PUT_U8(msg, NL80211_KEY_IDX, arg[pos++] - '0'); | |
294 | if (arg[pos++] != ':') | |
295 | goto explain; | |
296 | keydata = arg + pos; | |
297 | switch (strlen(keydata)) { | |
298 | case 10: | |
299 | keydata = hex2bin(keydata, keybuf); | |
300 | case 5: | |
301 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC01); | |
302 | keylen = 5; | |
303 | break; | |
304 | case 26: | |
305 | keydata = hex2bin(keydata, keybuf); | |
306 | case 13: | |
307 | NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC05); | |
308 | keylen = 13; | |
309 | break; | |
310 | default: | |
311 | goto explain; | |
312 | } | |
313 | ||
314 | if (!keydata) | |
315 | goto explain; | |
316 | ||
317 | NLA_PUT(msg, NL80211_KEY_DATA, keylen, keydata); | |
318 | ||
51e9bd80 JB |
319 | argv++; |
320 | argc--; | |
041581ce JB |
321 | |
322 | /* one key should be TX key */ | |
323 | if (!have_default && !argc) | |
324 | NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT); | |
325 | ||
326 | nla_nest_end(msg, key); | |
51e9bd80 JB |
327 | } while (argc); |
328 | ||
329 | nla_nest_end(msg, keys); | |
330 | ||
331 | return 0; | |
332 | nla_put_failure: | |
333 | return -ENOBUFS; | |
334 | explain: | |
335 | fprintf(stderr, "key must be [d:]index:data where\n" | |
336 | " 'd:' means default (transmit) key\n" | |
337 | " 'index:' is a single digit (0-3)\n" | |
338 | " 'data' must be 5 or 13 ascii chars\n" | |
339 | " or 10 or 26 hex digits\n" | |
340 | "for example: d:2:6162636465 is the same as d:2:abcde\n"); | |
341 | return 2; | |
342 | } | |
deb3501c | 343 | |
7ddfb679 | 344 | static void print_mcs_index(const __u8 *mcs) |
deb3501c | 345 | { |
04953e90 JB |
346 | unsigned int mcs_bit, prev_bit = -2, prev_cont = 0; |
347 | ||
348 | for (mcs_bit = 0; mcs_bit <= 76; mcs_bit++) { | |
349 | unsigned int mcs_octet = mcs_bit/8; | |
350 | unsigned int MCS_RATE_BIT = 1 << mcs_bit % 8; | |
351 | bool mcs_rate_idx_set; | |
352 | ||
353 | mcs_rate_idx_set = !!(mcs[mcs_octet] & MCS_RATE_BIT); | |
354 | ||
355 | if (!mcs_rate_idx_set) | |
356 | continue; | |
357 | ||
358 | if (prev_bit != mcs_bit - 1) { | |
359 | if (prev_bit != -2) | |
360 | printf("%d, ", prev_bit); | |
361 | else | |
362 | printf(" "); | |
363 | printf("%d", mcs_bit); | |
364 | prev_cont = 0; | |
365 | } else if (!prev_cont) { | |
366 | printf("-"); | |
367 | prev_cont = 1; | |
368 | } | |
369 | ||
370 | prev_bit = mcs_bit; | |
371 | } | |
deb3501c | 372 | |
04953e90 JB |
373 | if (prev_cont) |
374 | printf("%d", prev_bit); | |
375 | printf("\n"); | |
deb3501c | 376 | } |
0950993f LR |
377 | |
378 | /* | |
379 | * There are only 4 possible values, we just use a case instead of computing it, | |
380 | * but technically this can also be computed through the formula: | |
381 | * | |
382 | * Max AMPDU length = (2 ^ (13 + exponent)) - 1 bytes | |
383 | */ | |
384 | static __u32 compute_ampdu_length(__u8 exponent) | |
385 | { | |
386 | switch (exponent) { | |
387 | case 0: return 8191; /* (2 ^(13 + 0)) -1 */ | |
388 | case 1: return 16383; /* (2 ^(13 + 1)) -1 */ | |
389 | case 2: return 32767; /* (2 ^(13 + 2)) -1 */ | |
390 | case 3: return 65535; /* (2 ^(13 + 3)) -1 */ | |
391 | default: return 0; | |
392 | } | |
393 | } | |
394 | ||
395 | static const char *print_ampdu_space(__u8 space) | |
396 | { | |
397 | switch (space) { | |
398 | case 0: return "No restriction"; | |
399 | case 1: return "1/4 usec"; | |
400 | case 2: return "1/2 usec"; | |
401 | case 3: return "1 usec"; | |
402 | case 4: return "2 usec"; | |
403 | case 5: return "4 usec"; | |
404 | case 6: return "8 usec"; | |
405 | case 7: return "16 usec"; | |
406 | default: | |
7ae93cd5 | 407 | return "BUG (spacing more than 3 bits!)"; |
0950993f LR |
408 | } |
409 | } | |
410 | ||
411 | void print_ampdu_length(__u8 exponent) | |
412 | { | |
04953e90 | 413 | __u32 max_ampdu_length; |
0950993f LR |
414 | |
415 | max_ampdu_length = compute_ampdu_length(exponent); | |
416 | ||
417 | if (max_ampdu_length) { | |
418 | printf("\t\tMaximum RX AMPDU length %d bytes (exponent: 0x0%02x)\n", | |
419 | max_ampdu_length, exponent); | |
420 | } else { | |
421 | printf("\t\tMaximum RX AMPDU length: unrecognized bytes " | |
422 | "(exponent: %d)\n", exponent); | |
423 | } | |
424 | } | |
425 | ||
426 | void print_ampdu_spacing(__u8 spacing) | |
427 | { | |
428 | printf("\t\tMinimum RX AMPDU time spacing: %s (0x%02x)\n", | |
429 | print_ampdu_space(spacing), spacing); | |
430 | } | |
357c1a5d LR |
431 | |
432 | void print_ht_capability(__u16 cap) | |
433 | { | |
434 | #define PRINT_HT_CAP(_cond, _str) \ | |
435 | do { \ | |
436 | if (_cond) \ | |
437 | printf("\t\t\t" _str "\n"); \ | |
438 | } while (0) | |
439 | ||
440 | printf("\t\tCapabilities: 0x%02x\n", cap); | |
441 | ||
028c0de5 | 442 | PRINT_HT_CAP((cap & BIT(0)), "RX LDPC"); |
357c1a5d LR |
443 | PRINT_HT_CAP((cap & BIT(1)), "HT20/HT40"); |
444 | PRINT_HT_CAP(!(cap & BIT(1)), "HT20"); | |
445 | ||
446 | PRINT_HT_CAP(((cap >> 2) & 0x3) == 0, "Static SM Power Save"); | |
447 | PRINT_HT_CAP(((cap >> 2) & 0x3) == 1, "Dynamic SM Power Save"); | |
448 | PRINT_HT_CAP(((cap >> 2) & 0x3) == 3, "SM Power Save disabled"); | |
449 | ||
450 | PRINT_HT_CAP((cap & BIT(4)), "RX Greenfield"); | |
451 | PRINT_HT_CAP((cap & BIT(5)), "RX HT20 SGI"); | |
452 | PRINT_HT_CAP((cap & BIT(6)), "RX HT40 SGI"); | |
453 | PRINT_HT_CAP((cap & BIT(7)), "TX STBC"); | |
454 | ||
455 | PRINT_HT_CAP(((cap >> 8) & 0x3) == 0, "No RX STBC"); | |
456 | PRINT_HT_CAP(((cap >> 8) & 0x3) == 1, "RX STBC 1-stream"); | |
457 | PRINT_HT_CAP(((cap >> 8) & 0x3) == 2, "RX STBC 2-streams"); | |
458 | PRINT_HT_CAP(((cap >> 8) & 0x3) == 3, "RX STBC 3-streams"); | |
459 | ||
460 | PRINT_HT_CAP((cap & BIT(10)), "HT Delayed Block Ack"); | |
461 | ||
c79c7464 CL |
462 | PRINT_HT_CAP(!(cap & BIT(11)), "Max AMSDU length: 3839 bytes"); |
463 | PRINT_HT_CAP((cap & BIT(11)), "Max AMSDU length: 7935 bytes"); | |
357c1a5d LR |
464 | |
465 | /* | |
466 | * For beacons and probe response this would mean the BSS | |
467 | * does or does not allow the usage of DSSS/CCK HT40. | |
468 | * Otherwise it means the STA does or does not use | |
469 | * DSSS/CCK HT40. | |
470 | */ | |
471 | PRINT_HT_CAP((cap & BIT(12)), "DSSS/CCK HT40"); | |
472 | PRINT_HT_CAP(!(cap & BIT(12)), "No DSSS/CCK HT40"); | |
473 | ||
474 | /* BIT(13) is reserved */ | |
475 | ||
476 | PRINT_HT_CAP((cap & BIT(14)), "40 MHz Intolerant"); | |
477 | ||
478 | PRINT_HT_CAP((cap & BIT(15)), "L-SIG TXOP protection"); | |
479 | #undef PRINT_HT_CAP | |
480 | } | |
7ddfb679 JB |
481 | |
482 | void print_ht_mcs(const __u8 *mcs) | |
483 | { | |
484 | /* As defined in 7.3.2.57.4 Supported MCS Set field */ | |
485 | unsigned int tx_max_num_spatial_streams, max_rx_supp_data_rate; | |
486 | bool tx_mcs_set_defined, tx_mcs_set_equal, tx_unequal_modulation; | |
487 | ||
488 | max_rx_supp_data_rate = ((mcs[10] >> 8) & ((mcs[11] & 0x3) << 8)); | |
489 | tx_mcs_set_defined = !!(mcs[12] & (1 << 0)); | |
490 | tx_mcs_set_equal = !(mcs[12] & (1 << 1)); | |
491 | tx_max_num_spatial_streams = ((mcs[12] >> 2) & 3) + 1; | |
492 | tx_unequal_modulation = !!(mcs[12] & (1 << 4)); | |
493 | ||
494 | if (max_rx_supp_data_rate) | |
495 | printf("\t\tHT Max RX data rate: %d Mbps\n", max_rx_supp_data_rate); | |
496 | /* XXX: else see 9.6.0e.5.3 how to get this I think */ | |
497 | ||
498 | if (tx_mcs_set_defined) { | |
499 | if (tx_mcs_set_equal) { | |
2a79feb0 | 500 | printf("\t\tHT TX/RX MCS rate indexes supported:"); |
7ddfb679 JB |
501 | print_mcs_index(mcs); |
502 | } else { | |
503 | printf("\t\tHT RX MCS rate indexes supported:"); | |
504 | print_mcs_index(mcs); | |
505 | ||
506 | if (tx_unequal_modulation) | |
507 | printf("\t\tTX unequal modulation supported\n"); | |
508 | else | |
509 | printf("\t\tTX unequal modulation not supported\n"); | |
510 | ||
511 | printf("\t\tHT TX Max spatial streams: %d\n", | |
512 | tx_max_num_spatial_streams); | |
513 | ||
514 | printf("\t\tHT TX MCS rate indexes supported may differ\n"); | |
515 | } | |
516 | } else { | |
517 | printf("\t\tHT RX MCS rate indexes supported:"); | |
518 | print_mcs_index(mcs); | |
089bb35d | 519 | printf("\t\tHT TX MCS rate indexes are undefined\n"); |
7ddfb679 JB |
520 | } |
521 | } |