1 // SPDX-License-Identifier: GPL-2.0
2 /* /proc routines for Host AP driver */
4 #include <linux/types.h>
5 #include <linux/proc_fs.h>
6 #include <linux/export.h>
7 #include <net/lib80211.h>
9 #include "hostap_wlan.h"
12 #define PROC_LIMIT (PAGE_SIZE - 80)
15 #ifndef PRISM2_NO_PROCFS_DEBUG
16 static int prism2_debug_proc_show(struct seq_file *m, void *v)
18 local_info_t *local = m->private;
21 seq_printf(m, "next_txfid=%d next_alloc=%d\n",
22 local->next_txfid, local->next_alloc);
23 for (i = 0; i < PRISM2_TXFID_COUNT; i++)
24 seq_printf(m, "FID: tx=%04X intransmit=%04X\n",
25 local->txfid[i], local->intransmitfid[i]);
26 seq_printf(m, "FW TX rate control: %d\n", local->fw_tx_rate_control);
27 seq_printf(m, "beacon_int=%d\n", local->beacon_int);
28 seq_printf(m, "dtim_period=%d\n", local->dtim_period);
29 seq_printf(m, "wds_max_connections=%d\n", local->wds_max_connections);
30 seq_printf(m, "dev_enabled=%d\n", local->dev_enabled);
31 seq_printf(m, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
32 for (i = 0; i < WEP_KEYS; i++) {
33 if (local->crypt_info.crypt[i] &&
34 local->crypt_info.crypt[i]->ops) {
35 seq_printf(m, "crypt[%d]=%s\n", i,
36 local->crypt_info.crypt[i]->ops->name);
39 seq_printf(m, "pri_only=%d\n", local->pri_only);
40 seq_printf(m, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
41 seq_printf(m, "sram_type=%d\n", local->sram_type);
42 seq_printf(m, "no_pri=%d\n", local->no_pri);
46 #endif /* PRISM2_NO_PROCFS_DEBUG */
49 static int prism2_stats_proc_show(struct seq_file *m, void *v)
51 local_info_t *local = m->private;
52 struct comm_tallies_sums *sums = &local->comm_tallies;
54 seq_printf(m, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
55 seq_printf(m, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
56 seq_printf(m, "TxFragments=%u\n", sums->tx_fragments);
57 seq_printf(m, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
58 seq_printf(m, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
59 seq_printf(m, "TxDeferredTransmissions=%u\n",
60 sums->tx_deferred_transmissions);
61 seq_printf(m, "TxSingleRetryFrames=%u\n", sums->tx_single_retry_frames);
62 seq_printf(m, "TxMultipleRetryFrames=%u\n",
63 sums->tx_multiple_retry_frames);
64 seq_printf(m, "TxRetryLimitExceeded=%u\n",
65 sums->tx_retry_limit_exceeded);
66 seq_printf(m, "TxDiscards=%u\n", sums->tx_discards);
67 seq_printf(m, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
68 seq_printf(m, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
69 seq_printf(m, "RxFragments=%u\n", sums->rx_fragments);
70 seq_printf(m, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
71 seq_printf(m, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
72 seq_printf(m, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
73 seq_printf(m, "RxDiscardsNoBuffer=%u\n", sums->rx_discards_no_buffer);
74 seq_printf(m, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
75 seq_printf(m, "RxDiscardsWEPUndecryptable=%u\n",
76 sums->rx_discards_wep_undecryptable);
77 seq_printf(m, "RxMessageInMsgFragments=%u\n",
78 sums->rx_message_in_msg_fragments);
79 seq_printf(m, "RxMessageInBadMsgFragments=%u\n",
80 sums->rx_message_in_bad_msg_fragments);
81 /* FIX: this may grow too long for one page(?) */
86 static int prism2_wds_proc_show(struct seq_file *m, void *v)
88 struct list_head *ptr = v;
89 struct hostap_interface *iface;
91 iface = list_entry(ptr, struct hostap_interface, list);
92 if (iface->type == HOSTAP_INTERFACE_WDS)
93 seq_printf(m, "%s\t%pM\n",
94 iface->dev->name, iface->u.wds.remote_addr);
98 static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos)
100 local_info_t *local = PDE_DATA(file_inode(m->file));
101 read_lock_bh(&local->iface_lock);
102 return seq_list_start(&local->hostap_interfaces, *_pos);
105 static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos)
107 local_info_t *local = PDE_DATA(file_inode(m->file));
108 return seq_list_next(v, &local->hostap_interfaces, _pos);
111 static void prism2_wds_proc_stop(struct seq_file *m, void *v)
113 local_info_t *local = PDE_DATA(file_inode(m->file));
114 read_unlock_bh(&local->iface_lock);
117 static const struct seq_operations prism2_wds_proc_seqops = {
118 .start = prism2_wds_proc_start,
119 .next = prism2_wds_proc_next,
120 .stop = prism2_wds_proc_stop,
121 .show = prism2_wds_proc_show,
124 static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
126 local_info_t *local = PDE_DATA(file_inode(m->file));
127 struct list_head *ptr = v;
128 struct hostap_bss_info *bss;
130 if (ptr == &local->bss_list) {
131 seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
132 "SSID(hex)\tWPA IE\n");
136 bss = list_entry(ptr, struct hostap_bss_info, list);
137 seq_printf(m, "%pM\t%lu\t%u\t0x%x\t",
138 bss->bssid, bss->last_update,
139 bss->count, bss->capab_info);
141 seq_printf(m, "%*pE", (int)bss->ssid_len, bss->ssid);
144 seq_printf(m, "%*phN", (int)bss->ssid_len, bss->ssid);
146 seq_printf(m, "%*phN", (int)bss->wpa_ie_len, bss->wpa_ie);
151 static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos)
153 local_info_t *local = PDE_DATA(file_inode(m->file));
154 spin_lock_bh(&local->lock);
155 return seq_list_start_head(&local->bss_list, *_pos);
158 static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos)
160 local_info_t *local = PDE_DATA(file_inode(m->file));
161 return seq_list_next(v, &local->bss_list, _pos);
164 static void prism2_bss_list_proc_stop(struct seq_file *m, void *v)
166 local_info_t *local = PDE_DATA(file_inode(m->file));
167 spin_unlock_bh(&local->lock);
170 static const struct seq_operations prism2_bss_list_proc_seqops = {
171 .start = prism2_bss_list_proc_start,
172 .next = prism2_bss_list_proc_next,
173 .stop = prism2_bss_list_proc_stop,
174 .show = prism2_bss_list_proc_show,
177 static int prism2_crypt_proc_show(struct seq_file *m, void *v)
179 local_info_t *local = m->private;
182 seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
183 for (i = 0; i < WEP_KEYS; i++) {
184 if (local->crypt_info.crypt[i] &&
185 local->crypt_info.crypt[i]->ops &&
186 local->crypt_info.crypt[i]->ops->print_stats) {
187 local->crypt_info.crypt[i]->ops->print_stats(
188 m, local->crypt_info.crypt[i]->priv);
194 static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf,
195 size_t count, loff_t *_pos)
197 local_info_t *local = PDE_DATA(file_inode(file));
200 if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE)
204 if (count > PRISM2_PDA_SIZE - off)
205 count = PRISM2_PDA_SIZE - off;
206 if (copy_to_user(buf, local->pda + off, count) != 0)
212 static const struct file_operations prism2_pda_proc_fops = {
213 .read = prism2_pda_proc_read,
214 .llseek = generic_file_llseek,
218 static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf,
219 size_t bufsize, loff_t *_pos)
224 static const struct file_operations prism2_aux_dump_proc_fops = {
225 .read = prism2_aux_dump_proc_no_read,
229 #ifdef PRISM2_IO_DEBUG
230 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
231 int count, int *eof, void *data)
233 local_info_t *local = (local_info_t *) data;
234 int head = local->io_debug_head;
235 int start_bytes, left, copy, copied;
237 if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
239 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
241 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
245 start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
248 if (off < start_bytes) {
249 copy = start_bytes - off;
252 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
255 memcpy(&page[copy], local->io_debug, left);
257 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
265 #endif /* PRISM2_IO_DEBUG */
268 #ifndef PRISM2_NO_STATION_MODES
269 static int prism2_scan_results_proc_show(struct seq_file *m, void *v)
271 local_info_t *local = PDE_DATA(file_inode(m->file));
274 struct hfa384x_hostscan_result *scanres;
277 if (v == SEQ_START_TOKEN) {
279 "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n");
283 entry = (unsigned long)v - 2;
284 scanres = &local->last_scan_results[entry];
286 seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ",
287 le16_to_cpu(scanres->chid),
288 (s16) le16_to_cpu(scanres->anl),
289 (s16) le16_to_cpu(scanres->sl),
290 le16_to_cpu(scanres->beacon_interval),
291 le16_to_cpu(scanres->capability),
292 le16_to_cpu(scanres->rate),
294 le16_to_cpu(scanres->atim));
296 p = scanres->sup_rates;
297 for (i = 0; i < sizeof(scanres->sup_rates); i++) {
300 seq_printf(m, "<%02x>", p[i]);
305 len = le16_to_cpu(scanres->ssid_len);
308 for (i = 0; i < len; i++) {
309 unsigned char c = p[i];
310 if (c >= 32 && c < 127)
313 seq_printf(m, "<%02x>", c);
319 static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos)
321 local_info_t *local = PDE_DATA(file_inode(m->file));
322 spin_lock_bh(&local->lock);
324 /* We have a header (pos 0) + N results to show (pos 1...N) */
325 if (*_pos > local->last_scan_results_count)
327 return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
330 static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos)
332 local_info_t *local = PDE_DATA(file_inode(m->file));
335 if (*_pos > local->last_scan_results_count)
337 return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
340 static void prism2_scan_results_proc_stop(struct seq_file *m, void *v)
342 local_info_t *local = PDE_DATA(file_inode(m->file));
343 spin_unlock_bh(&local->lock);
346 static const struct seq_operations prism2_scan_results_proc_seqops = {
347 .start = prism2_scan_results_proc_start,
348 .next = prism2_scan_results_proc_next,
349 .stop = prism2_scan_results_proc_stop,
350 .show = prism2_scan_results_proc_show,
352 #endif /* PRISM2_NO_STATION_MODES */
355 void hostap_init_proc(local_info_t *local)
359 if (hostap_proc == NULL) {
360 printk(KERN_WARNING "%s: hostap proc directory not created\n",
365 local->proc = proc_mkdir(local->ddev->name, hostap_proc);
366 if (local->proc == NULL) {
367 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
372 #ifndef PRISM2_NO_PROCFS_DEBUG
373 proc_create_single_data("debug", 0, local->proc,
374 prism2_debug_proc_show, local);
375 #endif /* PRISM2_NO_PROCFS_DEBUG */
376 proc_create_single_data("stats", 0, local->proc, prism2_stats_proc_show,
378 proc_create_seq_data("wds", 0, local->proc,
379 &prism2_wds_proc_seqops, local);
380 proc_create_data("pda", 0, local->proc,
381 &prism2_pda_proc_fops, local);
382 proc_create_data("aux_dump", 0, local->proc,
383 local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops,
385 proc_create_seq_data("bss_list", 0, local->proc,
386 &prism2_bss_list_proc_seqops, local);
387 proc_create_single_data("crypt", 0, local->proc, prism2_crypt_proc_show,
389 #ifdef PRISM2_IO_DEBUG
390 proc_create_single_data("io_debug", 0, local->proc,
391 prism2_debug_proc_show, local);
392 #endif /* PRISM2_IO_DEBUG */
393 #ifndef PRISM2_NO_STATION_MODES
394 proc_create_seq_data("scan_results", 0, local->proc,
395 &prism2_scan_results_proc_seqops, local);
396 #endif /* PRISM2_NO_STATION_MODES */
400 void hostap_remove_proc(local_info_t *local)
402 proc_remove(local->proc);
406 EXPORT_SYMBOL(hostap_init_proc);
407 EXPORT_SYMBOL(hostap_remove_proc);