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Diffstat (limited to 'net/mac80211/debugfs_key.c')
-rw-r--r--net/mac80211/debugfs_key.c194
1 files changed, 107 insertions, 87 deletions
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index e0f5224630d..1521cabad3d 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -9,42 +9,44 @@
*/
#include <linux/kobject.h>
+#include <linux/slab.h>
#include "ieee80211_i.h"
#include "key.h"
#include "debugfs.h"
#include "debugfs_key.h"
-#define KEY_READ(name, prop, buflen, format_string) \
+#define KEY_READ(name, prop, format_string) \
static ssize_t key_##name##_read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
- char buf[buflen]; \
struct ieee80211_key *key = file->private_data; \
- int res = scnprintf(buf, buflen, format_string, key->prop); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+ return mac80211_format_buffer(userbuf, count, ppos, \
+ format_string, key->prop); \
}
-#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
-#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
+#define KEY_READ_D(name) KEY_READ(name, name, "%d\n")
+#define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n")
#define KEY_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
.read = key_##name##_read, \
- .open = mac80211_open_file_generic, \
+ .open = simple_open, \
+ .llseek = generic_file_llseek, \
}
#define KEY_FILE(name, format) \
KEY_READ_##format(name) \
KEY_OPS(name)
-#define KEY_CONF_READ(name, buflen, format_string) \
- KEY_READ(conf_##name, conf.name, buflen, format_string)
-#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
+#define KEY_CONF_READ(name, format_string) \
+ KEY_READ(conf_##name, conf.name, format_string)
+#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n")
#define KEY_CONF_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
.read = key_conf_##name##_read, \
- .open = mac80211_open_file_generic, \
+ .open = simple_open, \
+ .llseek = generic_file_llseek, \
}
#define KEY_CONF_FILE(name, format) \
@@ -56,63 +58,52 @@ KEY_CONF_FILE(keyidx, D);
KEY_CONF_FILE(hw_key_idx, D);
KEY_FILE(flags, X);
KEY_FILE(tx_rx_count, D);
-KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
+KEY_READ(ifindex, sdata->name, "%s\n");
KEY_OPS(ifindex);
static ssize_t key_algorithm_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
{
- char *alg;
+ char buf[15];
struct ieee80211_key *key = file->private_data;
+ u32 c = key->conf.cipher;
- switch (key->conf.alg) {
- case ALG_WEP:
- alg = "WEP\n";
- break;
- case ALG_TKIP:
- alg = "TKIP\n";
- break;
- case ALG_CCMP:
- alg = "CCMP\n";
- break;
- case ALG_AES_CMAC:
- alg = "AES-128-CMAC\n";
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
+ sprintf(buf, "%.2x-%.2x-%.2x:%d\n",
+ c >> 24, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
}
KEY_OPS(algorithm);
static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- const u8 *tpn;
+ u64 pn;
char buf[20];
int len;
struct ieee80211_key *key = file->private_data;
- switch (key->conf.alg) {
- case ALG_WEP:
+ switch (key->conf.cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
len = scnprintf(buf, sizeof(buf), "\n");
break;
- case ALG_TKIP:
+ case WLAN_CIPHER_SUITE_TKIP:
len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
key->u.tkip.tx.iv32,
key->u.tkip.tx.iv16);
break;
- case ALG_CCMP:
- tpn = key->u.ccmp.tx_pn;
+ case WLAN_CIPHER_SUITE_CCMP:
+ pn = atomic64_read(&key->u.ccmp.tx_pn);
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
+ (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
+ (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
break;
- case ALG_AES_CMAC:
- tpn = key->u.aes_cmac.tx_pn;
+ case WLAN_CIPHER_SUITE_AES_CMAC:
+ pn = atomic64_read(&key->u.aes_cmac.tx_pn);
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- tpn[0], tpn[1], tpn[2], tpn[3], tpn[4],
- tpn[5]);
+ (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
+ (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
break;
default:
return 0;
@@ -125,24 +116,25 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
- char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
+ char buf[14*IEEE80211_NUM_TIDS+1], *p = buf;
int i, len;
const u8 *rpn;
- switch (key->conf.alg) {
- case ALG_WEP:
+ switch (key->conf.cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
len = scnprintf(buf, sizeof(buf), "\n");
break;
- case ALG_TKIP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ case WLAN_CIPHER_SUITE_TKIP:
+ for (i = 0; i < IEEE80211_NUM_TIDS; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
"%08x %04x\n",
key->u.tkip.rx[i].iv32,
key->u.tkip.rx[i].iv16);
len = p - buf;
break;
- case ALG_CCMP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+ case WLAN_CIPHER_SUITE_CCMP:
+ for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
rpn = key->u.ccmp.rx_pn[i];
p += scnprintf(p, sizeof(buf)+buf-p,
"%02x%02x%02x%02x%02x%02x\n",
@@ -151,7 +143,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
}
len = p - buf;
break;
- case ALG_AES_CMAC:
+ case WLAN_CIPHER_SUITE_AES_CMAC:
rpn = key->u.aes_cmac.rx_pn;
p += scnprintf(p, sizeof(buf)+buf-p,
"%02x%02x%02x%02x%02x%02x\n",
@@ -173,11 +165,11 @@ static ssize_t key_replays_read(struct file *file, char __user *userbuf,
char buf[20];
int len;
- switch (key->conf.alg) {
- case ALG_CCMP:
+ switch (key->conf.cipher) {
+ case WLAN_CIPHER_SUITE_CCMP:
len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
break;
- case ALG_AES_CMAC:
+ case WLAN_CIPHER_SUITE_AES_CMAC:
len = scnprintf(buf, sizeof(buf), "%u\n",
key->u.aes_cmac.replays);
break;
@@ -195,8 +187,8 @@ static ssize_t key_icverrors_read(struct file *file, char __user *userbuf,
char buf[20];
int len;
- switch (key->conf.alg) {
- case ALG_AES_CMAC:
+ switch (key->conf.cipher) {
+ case WLAN_CIPHER_SUITE_AES_CMAC:
len = scnprintf(buf, sizeof(buf), "%u\n",
key->u.aes_cmac.icverrors);
break;
@@ -207,13 +199,33 @@ static ssize_t key_icverrors_read(struct file *file, char __user *userbuf,
}
KEY_OPS(icverrors);
+static ssize_t key_mic_failures_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ char buf[20];
+ int len;
+
+ if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP)
+ return -EINVAL;
+
+ len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(mic_failures);
+
static ssize_t key_key_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
- int i, res, bufsize = 2 * key->conf.keylen + 2;
+ int i, bufsize = 2 * key->conf.keylen + 2;
char *buf = kmalloc(bufsize, GFP_KERNEL);
char *p = buf;
+ ssize_t res;
+
+ if (!buf)
+ return -ENOMEM;
for (i = 0; i < key->conf.keylen; i++)
p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
@@ -229,9 +241,9 @@ KEY_OPS(key);
key, &key_##name##_ops);
void ieee80211_debugfs_key_add(struct ieee80211_key *key)
- {
+{
static int keycount;
- char buf[50];
+ char buf[100];
struct sta_info *sta;
if (!key->local->debugfs.keys)
@@ -246,16 +258,13 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
if (!key->debugfs.dir)
return;
- rcu_read_lock();
- sta = rcu_dereference(key->sta);
- if (sta)
- sprintf(buf, "../../stations/%pM", sta->sta.addr);
- rcu_read_unlock();
-
- /* using sta as a boolean is fine outside RCU lock */
- if (sta)
+ sta = key->sta;
+ if (sta) {
+ sprintf(buf, "../../netdev:%s/stations/%pM",
+ sta->sdata->name, sta->sta.addr);
key->debugfs.stalink =
debugfs_create_symlink("station", key->debugfs.dir, buf);
+ }
DEBUGFS_ADD(keylen);
DEBUGFS_ADD(flags);
@@ -267,6 +276,7 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key)
DEBUGFS_ADD(rx_spec);
DEBUGFS_ADD(replays);
DEBUGFS_ADD(icverrors);
+ DEBUGFS_ADD(mic_failures);
DEBUGFS_ADD(key);
DEBUGFS_ADD(ifindex);
};
@@ -279,33 +289,44 @@ void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
debugfs_remove_recursive(key->debugfs.dir);
key->debugfs.dir = NULL;
}
-void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
+
+void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata)
{
char buf[50];
struct ieee80211_key *key;
- if (!sdata->debugfs.dir)
+ if (!sdata->vif.debugfs_dir)
return;
- /* this is running under the key lock */
+ lockdep_assert_held(&sdata->local->key_mtx);
- key = sdata->default_key;
- if (key) {
+ if (sdata->debugfs.default_unicast_key) {
+ debugfs_remove(sdata->debugfs.default_unicast_key);
+ sdata->debugfs.default_unicast_key = NULL;
+ }
+
+ if (sdata->default_unicast_key) {
+ key = key_mtx_dereference(sdata->local,
+ sdata->default_unicast_key);
sprintf(buf, "../keys/%d", key->debugfs.cnt);
- sdata->debugfs.default_key =
- debugfs_create_symlink("default_key",
- sdata->debugfs.dir, buf);
- } else
- ieee80211_debugfs_key_remove_default(sdata);
-}
+ sdata->debugfs.default_unicast_key =
+ debugfs_create_symlink("default_unicast_key",
+ sdata->vif.debugfs_dir, buf);
+ }
-void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata)
- return;
+ if (sdata->debugfs.default_multicast_key) {
+ debugfs_remove(sdata->debugfs.default_multicast_key);
+ sdata->debugfs.default_multicast_key = NULL;
+ }
- debugfs_remove(sdata->debugfs.default_key);
- sdata->debugfs.default_key = NULL;
+ if (sdata->default_multicast_key) {
+ key = key_mtx_dereference(sdata->local,
+ sdata->default_multicast_key);
+ sprintf(buf, "../keys/%d", key->debugfs.cnt);
+ sdata->debugfs.default_multicast_key =
+ debugfs_create_symlink("default_multicast_key",
+ sdata->vif.debugfs_dir, buf);
+ }
}
void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
@@ -313,17 +334,16 @@ void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
char buf[50];
struct ieee80211_key *key;
- if (!sdata->debugfs.dir)
+ if (!sdata->vif.debugfs_dir)
return;
- /* this is running under the key lock */
-
- key = sdata->default_mgmt_key;
+ key = key_mtx_dereference(sdata->local,
+ sdata->default_mgmt_key);
if (key) {
sprintf(buf, "../keys/%d", key->debugfs.cnt);
sdata->debugfs.default_mgmt_key =
debugfs_create_symlink("default_mgmt_key",
- sdata->debugfs.dir, buf);
+ sdata->vif.debugfs_dir, buf);
} else
ieee80211_debugfs_key_remove_mgmt_default(sdata);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 17:28:46 +0000