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Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes

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This commit is contained in:
Jeff Garzik
2007-03-28 02:21:18 -04:00
parent c14bac628b c2805fbb86
commit a9c87a10db
7 changed files with 108 additions and 53 deletions
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3
net/core/rtnetlink.c
View File

@@ -621,7 +621,8 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (err < 0)
goto errout;
iw += IW_EV_POINT_OFF;
/* Payload is at an offset in buffer */
iw = iw_buf + IW_EV_POINT_OFF;
}
#endif /* CONFIG_NET_WIRELESS_RTNETLINK */

82
net/core/wireless.c
View File

@@ -2,7 +2,7 @@
* This file implement the Wireless Extensions APIs.
*
* Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
* Copyright (c) 1997-2006 Jean Tourrilhes, All Rights Reserved.
* Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
*
* (As all part of the Linux kernel, this file is GPL)
*/
@@ -76,6 +76,9 @@
* o Change length in ESSID and NICK to strlen() instead of strlen()+1
* o Make standard_ioctl_num and standard_event_num unsigned
* o Remove (struct net_device *)->get_wireless_stats()
*
* v10 - 16.3.07 - Jean II
* o Prevent leaking of kernel space in stream on 64 bits.
*/
/***************************** INCLUDES *****************************/
@@ -427,6 +430,21 @@ static const int event_type_size[] = {
IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
};
/* Size (in bytes) of various events, as packed */
static const int event_type_pk_size[] = {
IW_EV_LCP_PK_LEN, /* IW_HEADER_TYPE_NULL */
0,
IW_EV_CHAR_PK_LEN, /* IW_HEADER_TYPE_CHAR */
0,
IW_EV_UINT_PK_LEN, /* IW_HEADER_TYPE_UINT */
IW_EV_FREQ_PK_LEN, /* IW_HEADER_TYPE_FREQ */
IW_EV_ADDR_PK_LEN, /* IW_HEADER_TYPE_ADDR */
0,
IW_EV_POINT_PK_LEN, /* Without variable payload */
IW_EV_PARAM_PK_LEN, /* IW_HEADER_TYPE_PARAM */
IW_EV_QUAL_PK_LEN, /* IW_HEADER_TYPE_QUAL */
};
/************************ COMMON SUBROUTINES ************************/
/*
* Stuff that may be used in various place or doesn't fit in one
@@ -1217,7 +1235,7 @@ static int rtnetlink_standard_get(struct net_device * dev,
memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
/* Use our own copy of wrqu */
wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
+ IW_EV_LCP_LEN);
+ IW_EV_LCP_PK_LEN);
/* No extra arguments. Trivial to handle */
ret = handler(dev, &info, wrqu, NULL);
@@ -1229,8 +1247,8 @@ static int rtnetlink_standard_get(struct net_device * dev,
/* Get a temp copy of wrqu (skip pointer) */
memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
((char *) request) + IW_EV_LCP_LEN,
IW_EV_POINT_LEN - IW_EV_LCP_LEN);
((char *) request) + IW_EV_LCP_PK_LEN,
IW_EV_POINT_LEN - IW_EV_LCP_PK_LEN);
/* Calculate space needed by arguments. Always allocate
* for max space. Easier, and won't last long... */
@@ -1240,7 +1258,7 @@ static int rtnetlink_standard_get(struct net_device * dev,
(wrqu_point.data.length > descr->max_tokens))
extra_size = (wrqu_point.data.length
* descr->token_size);
buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF;
buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
#ifdef WE_RTNETLINK_DEBUG
printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
dev->name, extra_size, buffer_size);
@@ -1254,15 +1272,15 @@ static int rtnetlink_standard_get(struct net_device * dev,
/* Put wrqu in the right place (just before extra).
* Leave space for IWE header and dummy pointer...
* Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned...
* Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
*/
memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF,
memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
((char *) &wrqu_point) + IW_EV_POINT_OFF,
IW_EV_POINT_LEN - IW_EV_LCP_LEN);
wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN);
IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
/* Extra comes logically after that. Offset +12 bytes. */
extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN;
extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
/* Call the handler */
ret = handler(dev, &info, wrqu, extra);
@@ -1270,11 +1288,11 @@ static int rtnetlink_standard_get(struct net_device * dev,
/* Calculate real returned length */
extra_size = (wrqu->data.length * descr->token_size);
/* Re-adjust reply size */
request->len = extra_size + IW_EV_POINT_LEN;
request->len = extra_size + IW_EV_POINT_PK_LEN;
/* Put the iwe header where it should, i.e. scrap the
* dummy pointer. */
memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN);
memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
#ifdef WE_RTNETLINK_DEBUG
printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
@@ -1331,10 +1349,10 @@ static inline int rtnetlink_standard_set(struct net_device * dev,
#endif /* WE_RTNETLINK_DEBUG */
/* Extract fixed header from request. This is properly aligned. */
wrqu = &request->u;
wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
/* Check if wrqu is complete */
hdr_len = event_type_size[descr->header_type];
hdr_len = event_type_pk_size[descr->header_type];
if(request_len < hdr_len) {
#ifdef WE_RTNETLINK_DEBUG
printk(KERN_DEBUG
@@ -1359,7 +1377,7 @@ static inline int rtnetlink_standard_set(struct net_device * dev,
/* Put wrqu in the right place (skip pointer) */
memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN);
wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
/* Don't forget about the event code... */
wrqu = &wrqu_point;
@@ -1483,7 +1501,7 @@ static inline int rtnetlink_private_get(struct net_device * dev,
hdr_len = extra_size;
extra_size = 0;
} else {
hdr_len = IW_EV_POINT_LEN;
hdr_len = IW_EV_POINT_PK_LEN;
}
/* Check if wrqu is complete */
@@ -1514,7 +1532,7 @@ static inline int rtnetlink_private_get(struct net_device * dev,
memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
/* Use our own copy of wrqu */
wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
+ IW_EV_LCP_LEN);
+ IW_EV_LCP_PK_LEN);
/* No extra arguments. Trivial to handle */
ret = handler(dev, &info, wrqu, (char *) wrqu);
@@ -1523,7 +1541,7 @@ static inline int rtnetlink_private_get(struct net_device * dev,
char * extra;
/* Buffer for full reply */
buffer_size = extra_size + IW_EV_POINT_LEN + IW_EV_POINT_OFF;
buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
#ifdef WE_RTNETLINK_DEBUG
printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
@@ -1538,15 +1556,15 @@ static inline int rtnetlink_private_get(struct net_device * dev,
/* Put wrqu in the right place (just before extra).
* Leave space for IWE header and dummy pointer...
* Note that IW_EV_LCP_LEN==4 bytes, so it's still aligned...
* Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
*/
memcpy(buffer + IW_EV_LCP_LEN + IW_EV_POINT_OFF,
((char *) request) + IW_EV_LCP_LEN,
IW_EV_POINT_LEN - IW_EV_LCP_LEN);
wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_LEN);
memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
((char *) request) + IW_EV_LCP_PK_LEN,
IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
/* Extra comes logically after that. Offset +12 bytes. */
extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_LEN;
extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
/* Call the handler */
ret = handler(dev, &info, wrqu, extra);
@@ -1556,11 +1574,11 @@ static inline int rtnetlink_private_get(struct net_device * dev,
if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
extra_size = adjust_priv_size(descr->get_args, wrqu);
/* Re-adjust reply size */
request->len = extra_size + IW_EV_POINT_LEN;
request->len = extra_size + IW_EV_POINT_PK_LEN;
/* Put the iwe header where it should, i.e. scrap the
* dummy pointer. */
memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_LEN);
memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
#ifdef WE_RTNETLINK_DEBUG
printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
@@ -1641,14 +1659,14 @@ static inline int rtnetlink_private_set(struct net_device * dev,
/* Does it fits in wrqu ? */
if((descr->set_args & IW_PRIV_SIZE_FIXED) &&
(extra_size <= IFNAMSIZ)) {
hdr_len = IW_EV_LCP_LEN + extra_size;
hdr_len = IW_EV_LCP_PK_LEN + extra_size;
extra_size = 0;
} else {
hdr_len = IW_EV_POINT_LEN;
hdr_len = IW_EV_POINT_PK_LEN;
}
/* Extract fixed header from request. This is properly aligned. */
wrqu = &request->u;
wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
/* Check if wrqu is complete */
if(request_len < hdr_len) {
@@ -1675,7 +1693,7 @@ static inline int rtnetlink_private_set(struct net_device * dev,
/* Put wrqu in the right place (skip pointer) */
memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
wrqu, IW_EV_POINT_LEN - IW_EV_LCP_LEN);
wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
/* Does it fits within bounds ? */
if(wrqu_point.data.length > (descr->set_args &
@@ -1738,7 +1756,7 @@ int wireless_rtnetlink_get(struct net_device * dev,
iw_handler handler;
/* Check length */
if(len < IW_EV_LCP_LEN) {
if(len < IW_EV_LCP_PK_LEN) {
printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
dev->name, len);
return -EINVAL;
@@ -1822,7 +1840,7 @@ int wireless_rtnetlink_set(struct net_device * dev,
iw_handler handler;
/* Check length */
if(len < IW_EV_LCP_LEN) {
if(len < IW_EV_LCP_PK_LEN) {
printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
dev->name, len);
return -EINVAL;