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Diffstat (limited to 'net/mac80211/debugfs_sta.c')
-rw-r--r--net/mac80211/debugfs_sta.c134
1 files changed, 84 insertions, 50 deletions
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index a39512f09f9e..33dfcbc2bf9c 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -3,6 +3,7 @@
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -51,31 +52,54 @@ static const struct file_operations sta_ ##name## _ops = { \
STA_FILE(aid, sta.aid, D);
+static const char * const sta_flag_names[] = {
+#define FLAG(F) [WLAN_STA_##F] = #F
+ FLAG(AUTH),
+ FLAG(ASSOC),
+ FLAG(PS_STA),
+ FLAG(AUTHORIZED),
+ FLAG(SHORT_PREAMBLE),
+ FLAG(WDS),
+ FLAG(CLEAR_PS_FILT),
+ FLAG(MFP),
+ FLAG(BLOCK_BA),
+ FLAG(PS_DRIVER),
+ FLAG(PSPOLL),
+ FLAG(TDLS_PEER),
+ FLAG(TDLS_PEER_AUTH),
+ FLAG(TDLS_INITIATOR),
+ FLAG(TDLS_CHAN_SWITCH),
+ FLAG(TDLS_OFF_CHANNEL),
+ FLAG(TDLS_WIDER_BW),
+ FLAG(UAPSD),
+ FLAG(SP),
+ FLAG(4ADDR_EVENT),
+ FLAG(INSERTED),
+ FLAG(RATE_CONTROL),
+ FLAG(TOFFSET_KNOWN),
+ FLAG(MPSP_OWNER),
+ FLAG(MPSP_RECIPIENT),
+ FLAG(PS_DELIVER),
+#undef FLAG
+};
+
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- char buf[121];
+ char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
+ char *end = buf + sizeof(buf) - 1;
struct sta_info *sta = file->private_data;
+ unsigned int flg;
+
+ BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
+
+ for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
+ if (test_sta_flag(sta, flg))
+ pos += scnprintf(pos, end - pos, "%s\n",
+ sta_flag_names[flg]);
+ }
-#define TEST(flg) \
- test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
-
- int res = scnprintf(buf, sizeof(buf),
- "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
- TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
- TEST(PS_DRIVER), TEST(AUTHORIZED),
- TEST(SHORT_PREAMBLE),
- sta->sta.wme ? "WME\n" : "",
- TEST(WDS), TEST(CLEAR_PS_FILT),
- TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
- TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
- TEST(TDLS_PEER_AUTH), TEST(TDLS_INITIATOR),
- TEST(TDLS_CHAN_SWITCH), TEST(TDLS_OFF_CHANNEL),
- TEST(4ADDR_EVENT), TEST(INSERTED),
- TEST(RATE_CONTROL), TEST(TOFFSET_KNOWN),
- TEST(MPSP_OWNER), TEST(MPSP_RECIPIENT));
-#undef TEST
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
}
STA_OPS(flags);
@@ -151,11 +175,12 @@ static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *ppos)
{
- char _buf[12] = {}, *buf = _buf;
+ char _buf[25] = {}, *buf = _buf;
struct sta_info *sta = file->private_data;
bool start, tx;
unsigned long tid;
- int ret;
+ char *pos;
+ int ret, timeout = 5000;
if (count > sizeof(_buf))
return -EINVAL;
@@ -164,37 +189,48 @@ static ssize_t sta_agg_status_write(struct file *file, const char __user *userbu
return -EFAULT;
buf[sizeof(_buf) - 1] = '\0';
+ pos = buf;
+ buf = strsep(&pos, " ");
+ if (!buf)
+ return -EINVAL;
- if (strncmp(buf, "tx ", 3) == 0) {
- buf += 3;
+ if (!strcmp(buf, "tx"))
tx = true;
- } else if (strncmp(buf, "rx ", 3) == 0) {
- buf += 3;
+ else if (!strcmp(buf, "rx"))
tx = false;
- } else
+ else
return -EINVAL;
- if (strncmp(buf, "start ", 6) == 0) {
- buf += 6;
+ buf = strsep(&pos, " ");
+ if (!buf)
+ return -EINVAL;
+ if (!strcmp(buf, "start")) {
start = true;
if (!tx)
return -EINVAL;
- } else if (strncmp(buf, "stop ", 5) == 0) {
- buf += 5;
+ } else if (!strcmp(buf, "stop")) {
start = false;
- } else
+ } else {
return -EINVAL;
+ }
- ret = kstrtoul(buf, 0, &tid);
- if (ret)
- return ret;
+ buf = strsep(&pos, " ");
+ if (!buf)
+ return -EINVAL;
+ if (sscanf(buf, "timeout=%d", &timeout) == 1) {
+ buf = strsep(&pos, " ");
+ if (!buf || !tx || !start)
+ return -EINVAL;
+ }
- if (tid >= IEEE80211_NUM_TIDS)
+ ret = kstrtoul(buf, 0, &tid);
+ if (ret || tid >= IEEE80211_NUM_TIDS)
return -EINVAL;
if (tx) {
if (start)
- ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000);
+ ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
+ timeout);
else
ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
} else {
@@ -322,14 +358,14 @@ STA_OPS(vht_capa);
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, \
- sta->debugfs.dir, sta, &sta_ ##name## _ops);
+ sta->debugfs_dir, sta, &sta_ ##name## _ops);
#define DEBUGFS_ADD_COUNTER(name, field) \
if (sizeof(sta->field) == sizeof(u32)) \
- debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
+ debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
(u32 *) &sta->field); \
else \
- debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
+ debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
(u64 *) &sta->field);
void ieee80211_sta_debugfs_add(struct sta_info *sta)
@@ -339,8 +375,6 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
u8 mac[3*ETH_ALEN];
- sta->debugfs.add_has_run = true;
-
if (!stations_dir)
return;
@@ -355,8 +389,8 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
* destroyed quickly enough the old station's debugfs
* dir might still be around.
*/
- sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
- if (!sta->debugfs.dir)
+ sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
+ if (!sta->debugfs_dir)
return;
DEBUGFS_ADD(flags);
@@ -372,14 +406,14 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
debugfs_create_x32("driver_buffered_tids", 0400,
- sta->debugfs.dir,
+ sta->debugfs_dir,
(u32 *)&sta->driver_buffered_tids);
else
debugfs_create_x64("driver_buffered_tids", 0400,
- sta->debugfs.dir,
+ sta->debugfs_dir,
(u64 *)&sta->driver_buffered_tids);
- drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
+ drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
}
void ieee80211_sta_debugfs_remove(struct sta_info *sta)
@@ -387,7 +421,7 @@ void ieee80211_sta_debugfs_remove(struct sta_info *sta)
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata = sta->sdata;
- drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
- debugfs_remove_recursive(sta->debugfs.dir);
- sta->debugfs.dir = NULL;
+ drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
+ debugfs_remove_recursive(sta->debugfs_dir);
+ sta->debugfs_dir = NULL;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.