| /* |
| * mac80211 debugfs for wireless PHYs |
| * |
| * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * GPLv2 |
| * |
| */ |
| |
| #include <linux/debugfs.h> |
| #include <linux/rtnetlink.h> |
| #include "ieee80211_i.h" |
| #include "ieee80211_rate.h" |
| #include "debugfs.h" |
| |
| int mac80211_open_file_generic(struct inode *inode, struct file *file) |
| { |
| file->private_data = inode->i_private; |
| return 0; |
| } |
| |
| static const char *ieee80211_mode_str(int mode) |
| { |
| switch (mode) { |
| case MODE_IEEE80211A: |
| return "IEEE 802.11a"; |
| case MODE_IEEE80211B: |
| return "IEEE 802.11b"; |
| case MODE_IEEE80211G: |
| return "IEEE 802.11g"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| static ssize_t modes_read(struct file *file, char __user *userbuf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| struct ieee80211_hw_mode *mode; |
| char buf[150], *p = buf; |
| |
| /* FIXME: locking! */ |
| list_for_each_entry(mode, &local->modes_list, list) { |
| p += scnprintf(p, sizeof(buf)+buf-p, |
| "%s\n", ieee80211_mode_str(mode->mode)); |
| } |
| |
| return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); |
| } |
| |
| static const struct file_operations modes_ops = { |
| .read = modes_read, |
| .open = mac80211_open_file_generic, |
| }; |
| |
| #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ |
| static ssize_t name## _read(struct file *file, char __user *userbuf, \ |
| size_t count, loff_t *ppos) \ |
| { \ |
| struct ieee80211_local *local = file->private_data; \ |
| char buf[buflen]; \ |
| int res; \ |
| \ |
| res = scnprintf(buf, buflen, fmt "\n", ##value); \ |
| return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ |
| } \ |
| \ |
| static const struct file_operations name## _ops = { \ |
| .read = name## _read, \ |
| .open = mac80211_open_file_generic, \ |
| }; |
| |
| #define DEBUGFS_ADD(name) \ |
| local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \ |
| local, &name## _ops); |
| |
| #define DEBUGFS_DEL(name) \ |
| debugfs_remove(local->debugfs.name); \ |
| local->debugfs.name = NULL; |
| |
| |
| DEBUGFS_READONLY_FILE(channel, 20, "%d", |
| local->hw.conf.channel); |
| DEBUGFS_READONLY_FILE(frequency, 20, "%d", |
| local->hw.conf.freq); |
| DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d", |
| local->hw.conf.antenna_sel_tx); |
| DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d", |
| local->hw.conf.antenna_sel_rx); |
| DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d", |
| local->bridge_packets); |
| DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", |
| local->rts_threshold); |
| DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", |
| local->fragmentation_threshold); |
| DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", |
| local->short_retry_limit); |
| DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", |
| local->long_retry_limit); |
| DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", |
| local->total_ps_buffered); |
| DEBUGFS_READONLY_FILE(mode, 20, "%s", |
| ieee80211_mode_str(local->hw.conf.phymode)); |
| DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", |
| local->wep_iv & 0xffffff); |
| DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", |
| local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); |
| |
| /* statistics stuff */ |
| |
| static inline int rtnl_lock_local(struct ieee80211_local *local) |
| { |
| rtnl_lock(); |
| if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) { |
| rtnl_unlock(); |
| return -ENODEV; |
| } |
| return 0; |
| } |
| |
| #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ |
| DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) |
| |
| static ssize_t format_devstat_counter(struct ieee80211_local *local, |
| char __user *userbuf, |
| size_t count, loff_t *ppos, |
| int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, |
| int buflen)) |
| { |
| struct ieee80211_low_level_stats stats; |
| char buf[20]; |
| int res; |
| |
| if (!local->ops->get_stats) |
| return -EOPNOTSUPP; |
| |
| res = rtnl_lock_local(local); |
| if (res) |
| return res; |
| |
| res = local->ops->get_stats(local_to_hw(local), &stats); |
| rtnl_unlock(); |
| if (!res) |
| res = printvalue(&stats, buf, sizeof(buf)); |
| return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
| } |
| |
| #define DEBUGFS_DEVSTATS_FILE(name) \ |
| static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ |
| char *buf, int buflen) \ |
| { \ |
| return scnprintf(buf, buflen, "%u\n", stats->name); \ |
| } \ |
| static ssize_t stats_ ##name## _read(struct file *file, \ |
| char __user *userbuf, \ |
| size_t count, loff_t *ppos) \ |
| { \ |
| return format_devstat_counter(file->private_data, \ |
| userbuf, \ |
| count, \ |
| ppos, \ |
| print_devstats_##name); \ |
| } \ |
| \ |
| static const struct file_operations stats_ ##name## _ops = { \ |
| .read = stats_ ##name## _read, \ |
| .open = mac80211_open_file_generic, \ |
| }; |
| |
| #define DEBUGFS_STATS_ADD(name) \ |
| local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\ |
| local, &stats_ ##name## _ops); |
| |
| #define DEBUGFS_STATS_DEL(name) \ |
| debugfs_remove(local->debugfs.stats.name); \ |
| local->debugfs.stats.name = NULL; |
| |
| DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", |
| local->dot11TransmittedFragmentCount); |
| DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", |
| local->dot11MulticastTransmittedFrameCount); |
| DEBUGFS_STATS_FILE(failed_count, 20, "%u", |
| local->dot11FailedCount); |
| DEBUGFS_STATS_FILE(retry_count, 20, "%u", |
| local->dot11RetryCount); |
| DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", |
| local->dot11MultipleRetryCount); |
| DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", |
| local->dot11FrameDuplicateCount); |
| DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", |
| local->dot11ReceivedFragmentCount); |
| DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", |
| local->dot11MulticastReceivedFrameCount); |
| DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", |
| local->dot11TransmittedFrameCount); |
| DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", |
| local->dot11WEPUndecryptableCount); |
| #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", |
| local->tx_handlers_drop); |
| DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", |
| local->tx_handlers_queued); |
| DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", |
| local->tx_handlers_drop_unencrypted); |
| DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", |
| local->tx_handlers_drop_fragment); |
| DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", |
| local->tx_handlers_drop_wep); |
| DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", |
| local->tx_handlers_drop_not_assoc); |
| DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", |
| local->tx_handlers_drop_unauth_port); |
| DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", |
| local->rx_handlers_drop); |
| DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", |
| local->rx_handlers_queued); |
| DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", |
| local->rx_handlers_drop_nullfunc); |
| DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", |
| local->rx_handlers_drop_defrag); |
| DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", |
| local->rx_handlers_drop_short); |
| DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", |
| local->rx_handlers_drop_passive_scan); |
| DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", |
| local->tx_expand_skb_head); |
| DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", |
| local->tx_expand_skb_head_cloned); |
| DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", |
| local->rx_expand_skb_head); |
| DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", |
| local->rx_expand_skb_head2); |
| DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", |
| local->rx_handlers_fragments); |
| DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", |
| local->tx_status_drop); |
| |
| static ssize_t stats_wme_rx_queue_read(struct file *file, |
| char __user *userbuf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| char buf[NUM_RX_DATA_QUEUES*15], *p = buf; |
| int i; |
| |
| for (i = 0; i < NUM_RX_DATA_QUEUES; i++) |
| p += scnprintf(p, sizeof(buf)+buf-p, |
| "%u\n", local->wme_rx_queue[i]); |
| |
| return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); |
| } |
| |
| static const struct file_operations stats_wme_rx_queue_ops = { |
| .read = stats_wme_rx_queue_read, |
| .open = mac80211_open_file_generic, |
| }; |
| |
| static ssize_t stats_wme_tx_queue_read(struct file *file, |
| char __user *userbuf, |
| size_t count, loff_t *ppos) |
| { |
| struct ieee80211_local *local = file->private_data; |
| char buf[NUM_TX_DATA_QUEUES*15], *p = buf; |
| int i; |
| |
| for (i = 0; i < NUM_TX_DATA_QUEUES; i++) |
| p += scnprintf(p, sizeof(buf)+buf-p, |
| "%u\n", local->wme_tx_queue[i]); |
| |
| return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); |
| } |
| |
| static const struct file_operations stats_wme_tx_queue_ops = { |
| .read = stats_wme_tx_queue_read, |
| .open = mac80211_open_file_generic, |
| }; |
| #endif |
| |
| DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); |
| DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); |
| DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); |
| DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); |
| |
| |
| void debugfs_hw_add(struct ieee80211_local *local) |
| { |
| struct dentry *phyd = local->hw.wiphy->debugfsdir; |
| struct dentry *statsd; |
| |
| if (!phyd) |
| return; |
| |
| local->debugfs.stations = debugfs_create_dir("stations", phyd); |
| local->debugfs.keys = debugfs_create_dir("keys", phyd); |
| |
| DEBUGFS_ADD(channel); |
| DEBUGFS_ADD(frequency); |
| DEBUGFS_ADD(antenna_sel_tx); |
| DEBUGFS_ADD(antenna_sel_rx); |
| DEBUGFS_ADD(bridge_packets); |
| DEBUGFS_ADD(rts_threshold); |
| DEBUGFS_ADD(fragmentation_threshold); |
| DEBUGFS_ADD(short_retry_limit); |
| DEBUGFS_ADD(long_retry_limit); |
| DEBUGFS_ADD(total_ps_buffered); |
| DEBUGFS_ADD(mode); |
| DEBUGFS_ADD(wep_iv); |
| DEBUGFS_ADD(modes); |
| |
| statsd = debugfs_create_dir("statistics", phyd); |
| local->debugfs.statistics = statsd; |
| |
| /* if the dir failed, don't put all the other things into the root! */ |
| if (!statsd) |
| return; |
| |
| DEBUGFS_STATS_ADD(transmitted_fragment_count); |
| DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); |
| DEBUGFS_STATS_ADD(failed_count); |
| DEBUGFS_STATS_ADD(retry_count); |
| DEBUGFS_STATS_ADD(multiple_retry_count); |
| DEBUGFS_STATS_ADD(frame_duplicate_count); |
| DEBUGFS_STATS_ADD(received_fragment_count); |
| DEBUGFS_STATS_ADD(multicast_received_frame_count); |
| DEBUGFS_STATS_ADD(transmitted_frame_count); |
| DEBUGFS_STATS_ADD(wep_undecryptable_count); |
| #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| DEBUGFS_STATS_ADD(tx_handlers_drop); |
| DEBUGFS_STATS_ADD(tx_handlers_queued); |
| DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); |
| DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); |
| DEBUGFS_STATS_ADD(tx_handlers_drop_wep); |
| DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); |
| DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); |
| DEBUGFS_STATS_ADD(rx_handlers_drop); |
| DEBUGFS_STATS_ADD(rx_handlers_queued); |
| DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); |
| DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); |
| DEBUGFS_STATS_ADD(rx_handlers_drop_short); |
| DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); |
| DEBUGFS_STATS_ADD(tx_expand_skb_head); |
| DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); |
| DEBUGFS_STATS_ADD(rx_expand_skb_head); |
| DEBUGFS_STATS_ADD(rx_expand_skb_head2); |
| DEBUGFS_STATS_ADD(rx_handlers_fragments); |
| DEBUGFS_STATS_ADD(tx_status_drop); |
| DEBUGFS_STATS_ADD(wme_tx_queue); |
| DEBUGFS_STATS_ADD(wme_rx_queue); |
| #endif |
| DEBUGFS_STATS_ADD(dot11ACKFailureCount); |
| DEBUGFS_STATS_ADD(dot11RTSFailureCount); |
| DEBUGFS_STATS_ADD(dot11FCSErrorCount); |
| DEBUGFS_STATS_ADD(dot11RTSSuccessCount); |
| } |
| |
| void debugfs_hw_del(struct ieee80211_local *local) |
| { |
| DEBUGFS_DEL(channel); |
| DEBUGFS_DEL(frequency); |
| DEBUGFS_DEL(antenna_sel_tx); |
| DEBUGFS_DEL(antenna_sel_rx); |
| DEBUGFS_DEL(bridge_packets); |
| DEBUGFS_DEL(rts_threshold); |
| DEBUGFS_DEL(fragmentation_threshold); |
| DEBUGFS_DEL(short_retry_limit); |
| DEBUGFS_DEL(long_retry_limit); |
| DEBUGFS_DEL(total_ps_buffered); |
| DEBUGFS_DEL(mode); |
| DEBUGFS_DEL(wep_iv); |
| DEBUGFS_DEL(modes); |
| |
| DEBUGFS_STATS_DEL(transmitted_fragment_count); |
| DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); |
| DEBUGFS_STATS_DEL(failed_count); |
| DEBUGFS_STATS_DEL(retry_count); |
| DEBUGFS_STATS_DEL(multiple_retry_count); |
| DEBUGFS_STATS_DEL(frame_duplicate_count); |
| DEBUGFS_STATS_DEL(received_fragment_count); |
| DEBUGFS_STATS_DEL(multicast_received_frame_count); |
| DEBUGFS_STATS_DEL(transmitted_frame_count); |
| DEBUGFS_STATS_DEL(wep_undecryptable_count); |
| DEBUGFS_STATS_DEL(num_scans); |
| #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| DEBUGFS_STATS_DEL(tx_handlers_drop); |
| DEBUGFS_STATS_DEL(tx_handlers_queued); |
| DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); |
| DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); |
| DEBUGFS_STATS_DEL(tx_handlers_drop_wep); |
| DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); |
| DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); |
| DEBUGFS_STATS_DEL(rx_handlers_drop); |
| DEBUGFS_STATS_DEL(rx_handlers_queued); |
| DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); |
| DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); |
| DEBUGFS_STATS_DEL(rx_handlers_drop_short); |
| DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); |
| DEBUGFS_STATS_DEL(tx_expand_skb_head); |
| DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); |
| DEBUGFS_STATS_DEL(rx_expand_skb_head); |
| DEBUGFS_STATS_DEL(rx_expand_skb_head2); |
| DEBUGFS_STATS_DEL(rx_handlers_fragments); |
| DEBUGFS_STATS_DEL(tx_status_drop); |
| DEBUGFS_STATS_DEL(wme_tx_queue); |
| DEBUGFS_STATS_DEL(wme_rx_queue); |
| #endif |
| DEBUGFS_STATS_DEL(dot11ACKFailureCount); |
| DEBUGFS_STATS_DEL(dot11RTSFailureCount); |
| DEBUGFS_STATS_DEL(dot11FCSErrorCount); |
| DEBUGFS_STATS_DEL(dot11RTSSuccessCount); |
| |
| debugfs_remove(local->debugfs.statistics); |
| local->debugfs.statistics = NULL; |
| debugfs_remove(local->debugfs.stations); |
| local->debugfs.stations = NULL; |
| debugfs_remove(local->debugfs.keys); |
| local->debugfs.keys = NULL; |
| } |
