mac80211: refactor debugfs function generation code

[net-next-2.6.git] / net / mac80211 / debugfs_key.c

diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 7cd8dd9fc240ee027795a550d89ede7f0d66f3b4..5822a6ce76714cc85cd653f860508ceff29786c0 100644 (file)
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -15,18 +15,17 @@
 #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 = {             \
@@ -39,9 +38,9 @@ static const struct file_operations key_ ##name## _ops = {            \
                 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 = {             \
@@ -59,33 +58,20 @@ 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->name, IFNAMSIZ + 2, "%s\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);
 
@@ -97,21 +83,22 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
        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:
+       case WLAN_CIPHER_SUITE_CCMP:
                tpn = 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]);
                break;
-       case ALG_AES_CMAC:
+       case WLAN_CIPHER_SUITE_AES_CMAC:
                tpn = 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],
@@ -132,11 +119,12 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
        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:
+       case WLAN_CIPHER_SUITE_TKIP:
                for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
                        p += scnprintf(p, sizeof(buf)+buf-p,
                                       "%08x %04x\n",
@@ -144,7 +132,7 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
                                       key->u.tkip.rx[i].iv16);
                len = p - buf;
                break;
-       case ALG_CCMP:
+       case WLAN_CIPHER_SUITE_CCMP:
                for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) {
                        rpn = key->u.ccmp.rx_pn[i];
                        p += scnprintf(p, sizeof(buf)+buf-p,
@@ -154,7 +142,7 @@ 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",
@@ -176,11 +164,11 @@ 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;
@@ -198,8 +186,8 @@ 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;
@@ -214,9 +202,13 @@ 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]);