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airo: sanitize handling of WepKeyRid
don't byteswap, update users to match that, annotate. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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17e7049140
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4293ea33c8
@ -501,10 +501,10 @@ typedef struct {
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/* This structure came from an email sent to me from an engineer at
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aironet for inclusion into this driver */
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typedef struct {
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u16 len;
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u16 kindex;
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__le16 len;
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__le16 kindex;
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u8 mac[ETH_ALEN];
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u16 klen;
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__le16 klen;
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u8 key[16];
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} WepKeyRid;
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@ -1750,31 +1750,22 @@ static int readBSSListRid(struct airo_info *ai, int first,
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list, ai->bssListRidLen, 1);
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}
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static int readWepKeyRid(struct airo_info*ai, WepKeyRid *wkr, int temp, int lock) {
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int rc = PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
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static int readWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int temp, int lock)
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{
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return PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
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wkr, sizeof(*wkr), lock);
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wkr->len = le16_to_cpu(wkr->len);
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wkr->kindex = le16_to_cpu(wkr->kindex);
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wkr->klen = le16_to_cpu(wkr->klen);
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return rc;
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}
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/* In the writeXXXRid routines we copy the rids so that we don't screwup
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* the originals when we endian them... */
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static int writeWepKeyRid(struct airo_info*ai, WepKeyRid *pwkr, int perm, int lock) {
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int rc;
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WepKeyRid wkr = *pwkr;
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wkr.len = cpu_to_le16(wkr.len);
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wkr.kindex = cpu_to_le16(wkr.kindex);
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wkr.klen = cpu_to_le16(wkr.klen);
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rc = PC4500_writerid(ai, RID_WEP_TEMP, &wkr, sizeof(wkr), lock);
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if (rc!=SUCCESS) airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc);
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static int writeWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int perm, int lock)
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{
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int rc;
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rc = PC4500_writerid(ai, RID_WEP_TEMP, wkr, sizeof(*wkr), lock);
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if (rc!=SUCCESS)
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airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc);
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if (perm) {
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rc = PC4500_writerid(ai, RID_WEP_PERM, &wkr, sizeof(wkr), lock);
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if (rc!=SUCCESS) {
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rc = PC4500_writerid(ai, RID_WEP_PERM, wkr, sizeof(*wkr), lock);
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if (rc!=SUCCESS)
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airo_print_err(ai->dev->name, "WEP_PERM set %x", rc);
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}
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}
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return rc;
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}
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@ -3755,7 +3746,7 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
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int status;
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int i;
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SsidRid mySsid;
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u16 lastindex;
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__le16 lastindex;
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WepKeyRid wkr;
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int rc;
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@ -3891,7 +3882,7 @@ static u16 setup_card(struct airo_info *ai, u8 *mac, int lock)
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rc = readWepKeyRid(ai, &wkr, 1, lock);
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if (rc == SUCCESS) do {
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lastindex = wkr.kindex;
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if (wkr.kindex == 0xffff) {
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if (wkr.kindex == cpu_to_le16(0xffff)) {
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ai->defindex = wkr.mac[0];
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}
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rc = readWepKeyRid(ai, &wkr, 0, lock);
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@ -5197,39 +5188,40 @@ static int do_writerid( struct airo_info *ai, u16 rid, const void *rid_data,
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static int get_wep_key(struct airo_info *ai, u16 index) {
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WepKeyRid wkr;
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int rc;
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u16 lastindex;
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__le16 lastindex;
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rc = readWepKeyRid(ai, &wkr, 1, 1);
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if (rc == SUCCESS) do {
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lastindex = wkr.kindex;
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if (wkr.kindex == index) {
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if (wkr.kindex == cpu_to_le16(index)) {
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if (index == 0xffff) {
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return wkr.mac[0];
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}
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return wkr.klen;
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return le16_to_cpu(wkr.klen);
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}
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readWepKeyRid(ai, &wkr, 0, 1);
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} while(lastindex != wkr.kindex);
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} while (lastindex != wkr.kindex);
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return -1;
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}
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static int set_wep_key(struct airo_info *ai, u16 index,
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const char *key, u16 keylen, int perm, int lock ) {
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const char *key, u16 keylen, int perm, int lock )
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{
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static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
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WepKeyRid wkr;
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memset(&wkr, 0, sizeof(wkr));
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if (keylen == 0) {
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// We are selecting which key to use
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wkr.len = sizeof(wkr);
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wkr.kindex = 0xffff;
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wkr.len = cpu_to_le16(sizeof(wkr));
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wkr.kindex = cpu_to_le16(0xffff);
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wkr.mac[0] = (char)index;
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if (perm) ai->defindex = (char)index;
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} else {
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// We are actually setting the key
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wkr.len = sizeof(wkr);
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wkr.kindex = index;
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wkr.klen = keylen;
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wkr.len = cpu_to_le16(sizeof(wkr));
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wkr.kindex = cpu_to_le16(index);
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wkr.klen = cpu_to_le16(keylen);
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memcpy( wkr.key, key, keylen );
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memcpy( wkr.mac, macaddr, ETH_ALEN );
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}
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@ -5281,14 +5273,15 @@ static void proc_wepkey_on_close( struct inode *inode, struct file *file ) {
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set_wep_key(ai, index, key, i/3, 1, 1);
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}
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static int proc_wepkey_open( struct inode *inode, struct file *file ) {
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static int proc_wepkey_open( struct inode *inode, struct file *file )
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{
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struct proc_data *data;
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struct proc_dir_entry *dp = PDE(inode);
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struct net_device *dev = dp->data;
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struct airo_info *ai = dev->priv;
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char *ptr;
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WepKeyRid wkr;
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u16 lastindex;
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__le16 lastindex;
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int j=0;
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int rc;
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@ -5314,12 +5307,13 @@ static int proc_wepkey_open( struct inode *inode, struct file *file ) {
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rc = readWepKeyRid(ai, &wkr, 1, 1);
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if (rc == SUCCESS) do {
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lastindex = wkr.kindex;
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if (wkr.kindex == 0xffff) {
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if (wkr.kindex == cpu_to_le16(0xffff)) {
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j += sprintf(ptr+j, "Tx key = %d\n",
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(int)wkr.mac[0]);
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} else {
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j += sprintf(ptr+j, "Key %d set with length = %d\n",
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(int)wkr.kindex, (int)wkr.klen);
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le16_to_cpu(wkr.kindex),
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le16_to_cpu(wkr.klen));
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}
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readWepKeyRid(ai, &wkr, 0, 1);
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} while((lastindex != wkr.kindex) && (j < 180-30));
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