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00011 #include <linux/debugfs.h>
00012 #include <linux/ieee80211.h>
00013 #include "ieee80211_i.h"
00014 #include "debugfs.h"
00015 #include "debugfs_sta.h"
00016 #include "sta_info.h"
00017
00018
00019
00020 #define STA_READ(name, field, format_string) \
00021 static ssize_t sta_ ##name## _read(struct file *file, \
00022 char __user *userbuf, \
00023 size_t count, loff_t *ppos) \
00024 { \
00025 struct sta_info *sta = file->private_data; \
00026 return mac80211_format_buffer(userbuf, count, ppos, \
00027 format_string, sta->field); \
00028 }
00029 #define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
00030 #define STA_READ_U(name, field) STA_READ(name, field, "%u\n")
00031 #define STA_READ_S(name, field) STA_READ(name, field, "%s\n")
00032
00033 #define STA_OPS(name) \
00034 static const struct file_operations sta_ ##name## _ops = { \
00035 .read = sta_##name##_read, \
00036 .open = mac80211_open_file_generic, \
00037 .llseek = generic_file_llseek, \
00038 }
00039
00040 #define STA_OPS_RW(name) \
00041 static const struct file_operations sta_ ##name## _ops = { \
00042 .read = sta_##name##_read, \
00043 .write = sta_##name##_write, \
00044 .open = mac80211_open_file_generic, \
00045 .llseek = generic_file_llseek, \
00046 }
00047
00048 #define STA_FILE(name, field, format) \
00049 STA_READ_##format(name, field) \
00050 STA_OPS(name)
00051
00052 STA_FILE(aid, sta.aid, D);
00053 STA_FILE(dev, sdata->name, S);
00054 STA_FILE(last_signal, last_signal, D);
00055
00056 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
00057 size_t count, loff_t *ppos)
00058 {
00059 char buf[121];
00060 struct sta_info *sta = file->private_data;
00061
00062 #define TEST(flg) \
00063 test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
00064
00065 int res = scnprintf(buf, sizeof(buf),
00066 "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
00067 TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
00068 TEST(PS_DRIVER), TEST(AUTHORIZED),
00069 TEST(SHORT_PREAMBLE), TEST(ASSOC_AP),
00070 TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
00071 TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
00072 TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
00073 TEST(TDLS_PEER_AUTH));
00074 #undef TEST
00075 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
00076 }
00077 STA_OPS(flags);
00078
00079 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
00080 char __user *userbuf,
00081 size_t count, loff_t *ppos)
00082 {
00083 struct sta_info *sta = file->private_data;
00084 char buf[17*IEEE80211_NUM_ACS], *p = buf;
00085 int ac;
00086
00087 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
00088 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
00089 skb_queue_len(&sta->ps_tx_buf[ac]) +
00090 skb_queue_len(&sta->tx_filtered[ac]));
00091 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
00092 }
00093 STA_OPS(num_ps_buf_frames);
00094
00095 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
00096 size_t count, loff_t *ppos)
00097 {
00098 struct sta_info *sta = file->private_data;
00099 return mac80211_format_buffer(userbuf, count, ppos, "%d\n",
00100 jiffies_to_msecs(jiffies - sta->last_rx));
00101 }
00102 STA_OPS(inactive_ms);
00103
00104
00105 static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf,
00106 size_t count, loff_t *ppos)
00107 {
00108 struct sta_info *sta = file->private_data;
00109 struct timespec uptime;
00110 struct tm result;
00111 long connected_time_secs;
00112 char buf[100];
00113 int res;
00114 do_posix_clock_monotonic_gettime(&uptime);
00115 connected_time_secs = uptime.tv_sec - sta->last_connected;
00116 time_to_tm(connected_time_secs, 0, &result);
00117 result.tm_year -= 70;
00118 result.tm_mday -= 1;
00119 res = scnprintf(buf, sizeof(buf),
00120 "years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n",
00121 result.tm_year, result.tm_mon, result.tm_mday,
00122 result.tm_hour, result.tm_min, result.tm_sec);
00123 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
00124 }
00125 STA_OPS(connected_time);
00126
00127
00128
00129 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
00130 size_t count, loff_t *ppos)
00131 {
00132 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
00133 int i;
00134 struct sta_info *sta = file->private_data;
00135 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
00136 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
00137 le16_to_cpu(sta->last_seq_ctrl[i]));
00138 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
00139 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
00140 }
00141 STA_OPS(last_seq_ctrl);
00142
00143 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
00144 size_t count, loff_t *ppos)
00145 {
00146 char buf[71 + STA_TID_NUM * 40], *p = buf;
00147 int i;
00148 struct sta_info *sta = file->private_data;
00149 struct tid_ampdu_rx *tid_rx;
00150 struct tid_ampdu_tx *tid_tx;
00151
00152 rcu_read_lock();
00153
00154 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
00155 sta->ampdu_mlme.dialog_token_allocator + 1);
00156 p += scnprintf(p, sizeof(buf) + buf - p,
00157 "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
00158
00159 for (i = 0; i < STA_TID_NUM; i++) {
00160 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
00161 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
00162
00163 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
00164 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
00165 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
00166 tid_rx ? tid_rx->dialog_token : 0);
00167 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
00168 tid_rx ? tid_rx->ssn : 0);
00169
00170 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
00171 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
00172 tid_tx ? tid_tx->dialog_token : 0);
00173 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
00174 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
00175 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
00176 }
00177 rcu_read_unlock();
00178
00179 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
00180 }
00181
00182 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
00183 size_t count, loff_t *ppos)
00184 {
00185 char _buf[12], *buf = _buf;
00186 struct sta_info *sta = file->private_data;
00187 bool start, tx;
00188 unsigned long tid;
00189 int ret;
00190
00191 if (count > sizeof(_buf))
00192 return -EINVAL;
00193
00194 if (copy_from_user(buf, userbuf, count))
00195 return -EFAULT;
00196
00197 buf[sizeof(_buf) - 1] = '\0';
00198
00199 if (strncmp(buf, "tx ", 3) == 0) {
00200 buf += 3;
00201 tx = true;
00202 } else if (strncmp(buf, "rx ", 3) == 0) {
00203 buf += 3;
00204 tx = false;
00205 } else
00206 return -EINVAL;
00207
00208 if (strncmp(buf, "start ", 6) == 0) {
00209 buf += 6;
00210 start = true;
00211 if (!tx)
00212 return -EINVAL;
00213 } else if (strncmp(buf, "stop ", 5) == 0) {
00214 buf += 5;
00215 start = false;
00216 } else
00217 return -EINVAL;
00218
00219 tid = simple_strtoul(buf, NULL, 0);
00220
00221 if (tid >= STA_TID_NUM)
00222 return -EINVAL;
00223
00224 if (tx) {
00225 if (start)
00226 ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000);
00227 else
00228 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
00229 } else {
00230 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
00231 3, true);
00232 ret = 0;
00233 }
00234
00235 return ret ?: count;
00236 }
00237 STA_OPS_RW(agg_status);
00238
00239 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
00240 size_t count, loff_t *ppos)
00241 {
00242 #define PRINT_HT_CAP(_cond, _str) \
00243 do { \
00244 if (_cond) \
00245 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
00246 } while (0)
00247 char buf[512], *p = buf;
00248 int i;
00249 struct sta_info *sta = file->private_data;
00250 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
00251
00252 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
00253 htc->ht_supported ? "" : "not ");
00254 if (htc->ht_supported) {
00255 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
00256
00257 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
00258 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
00259 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
00260
00261 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
00262 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
00263 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
00264
00265 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
00266 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
00267 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
00268 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
00269
00270 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
00271 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
00272 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
00273 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
00274
00275 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
00276
00277 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
00278 "3839 bytes");
00279 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
00280 "7935 bytes");
00281
00282
00283
00284
00285
00286
00287
00288 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
00289 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
00290
00291
00292
00293 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
00294
00295 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
00296
00297 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
00298 htc->ampdu_factor, htc->ampdu_density);
00299 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
00300
00301 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
00302 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
00303 htc->mcs.rx_mask[i]);
00304 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
00305
00306
00307 if (le16_to_cpu(htc->mcs.rx_highest)) {
00308 p += scnprintf(p, sizeof(buf)+buf-p,
00309 "MCS rx highest: %d Mbps\n",
00310 le16_to_cpu(htc->mcs.rx_highest));
00311 }
00312
00313 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
00314 htc->mcs.tx_params);
00315 }
00316
00317 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
00318 }
00319 STA_OPS(ht_capa);
00320
00321 #define DEBUGFS_ADD(name) \
00322 debugfs_create_file(#name, 0400, \
00323 sta->debugfs.dir, sta, &sta_ ##name## _ops);
00324
00325 #define DEBUGFS_ADD_COUNTER(name, field) \
00326 if (sizeof(sta->field) == sizeof(u32)) \
00327 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
00328 (u32 *) &sta->field); \
00329 else \
00330 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
00331 (u64 *) &sta->field);
00332
00333 void ieee80211_sta_debugfs_add(struct sta_info *sta)
00334 {
00335 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
00336 u8 mac[3*ETH_ALEN];
00337
00338 sta->debugfs.add_has_run = true;
00339
00340 if (!stations_dir)
00341 return;
00342
00343 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
00344
00345
00346
00347
00348
00349
00350
00351
00352
00353
00354 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
00355 if (!sta->debugfs.dir)
00356 return;
00357
00358 DEBUGFS_ADD(flags);
00359 DEBUGFS_ADD(num_ps_buf_frames);
00360 DEBUGFS_ADD(inactive_ms);
00361 DEBUGFS_ADD(connected_time);
00362 DEBUGFS_ADD(last_seq_ctrl);
00363 DEBUGFS_ADD(agg_status);
00364 DEBUGFS_ADD(dev);
00365 DEBUGFS_ADD(last_signal);
00366 DEBUGFS_ADD(ht_capa);
00367
00368 DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
00369 DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
00370 DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes);
00371 DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes);
00372 DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates);
00373 DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments);
00374 DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped);
00375 DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments);
00376 DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count);
00377 DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed);
00378 DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
00379 DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count);
00380 }
00381
00382 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
00383 {
00384 debugfs_remove_recursive(sta->debugfs.dir);
00385 sta->debugfs.dir = NULL;
00386 }