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Convert tracked member of ieee80211_cb to be a flag

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git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@3618 0192ed92-7a03-0410-a25b-9323aeb14dbd
This commit is contained in:
mentor 2008-05-06 11:31:26 +00:00
parent d3842998ca
commit ef47acefdd
3 changed files with 9 additions and 9 deletions
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2
net80211/ieee80211_linux.h
View File

@ -408,7 +408,7 @@ struct ieee80211_cb {
#define M_UAPSD 0x08 /* frame flagged for u-apsd handling */
#define M_RAW 0x10
#ifdef IEEE80211_DEBUG_REFCNT
int tracked;
#define M_SKB_TRACKED 0x20
void (*next_destructor)(struct sk_buff *skb);
#endif
};

2
net80211/ieee80211_output.c
View File

@ -287,7 +287,7 @@ ieee80211_hardstart(struct sk_buff *skb, struct net_device *dev)
if (skb1) {
memset(SKB_CB(skb1), 0, sizeof(struct ieee80211_cb));
#ifdef IEEE80211_DEBUG_REFCNT
SKB_CB(skb1)->tracked = 1;
M_FLAG_SET(skb1, M_SKB_TRACKED);
#endif /* #ifdef IEEE80211_DEBUG_REFCNT */
SKB_CB(skb1)->ni = ieee80211_find_txnode(vap->iv_xrvap,
eh->ether_dhost);

14
net80211/ieee80211_skb.c
View File

@ -280,7 +280,7 @@ static void print_skb_trackchange_message(
static struct sk_buff *
clean_clone_or_copy(struct sk_buff *skb) {
if (skb != NULL)
SKB_CB(skb)->tracked = 0;
M_FLAG_CLR(skb, M_SKB_TRACKED);
return skb;
}
@ -295,7 +295,7 @@ track_skb(struct sk_buff *skb, int users_adjustment,
"ERROR: NULL skb received. Skipping.");
return NULL;
}
if (SKB_CB(skb)->tracked) {
if (M_FLAG_GET(skb, M_SKB_TRACKED)) {
skb_print_message(0 /* show_counter */,
skb, func1, line1, func2, line2,
"ERROR: Already tracked skb received. Skipping.");
@ -310,7 +310,7 @@ track_skb(struct sk_buff *skb, int users_adjustment,
}
atomic_inc(&skb_total_counter);
atomic_inc(&skb_refs_counter);
SKB_CB(skb)->tracked = 1;
M_FLAG_SET(skb, M_SKB_TRACKED);
print_skb_trackchange_message(skb, users_adjustment,
func1, line1, func2, line2,
" is now ** TRACKED **");
@ -335,7 +335,7 @@ untrack_skb(struct sk_buff *skb, int users_adjustment,
"ERROR: NULL skb received. No changes made.");
return NULL;
}
if (!SKB_CB(skb)->tracked) {
if (!M_FLAG_GET(skb, M_SKB_TRACKED)) {
skb_print_message(0 /* show_counter */,
skb, func1, line1, func2, line2,
"ERROR: Untracked skb received. No changes made.");
@ -350,7 +350,7 @@ untrack_skb(struct sk_buff *skb, int users_adjustment,
}
atomic_dec(&skb_total_counter);
atomic_dec(&skb_refs_counter);
SKB_CB(skb)->tracked = 0;
M_FLAG_CLR(skb, M_SKB_TRACKED);
#ifdef IEEE80211_DEBUG_REFCNT_SKBDEST
/* Uninstall our debug destructor, restoring any original... */
if (skb->destructor == skb_destructor) {
@ -383,7 +383,7 @@ unref_skb(struct sk_buff *skb, int type,
dump_stack();
return;
}
if (!SKB_CB(skb)->tracked) {
if (!M_FLAG_GET(skb, M_SKB_TRACKED)) {
skb_print_message(0 /* show_counter */,
skb, func1, line1, func2, line2,
"ERROR: Untracked skb received. Probable duplicate free error!");
@ -463,7 +463,7 @@ ref_skb(struct sk_buff *skb,
dump_stack();
return NULL;
}
if (!SKB_CB(skb)->tracked) {
if (!M_FLAG_GET(skb, M_SKB_TRACKED)) {
skb_print_message(0 /* show_counter */,
skb, func1, line1, func2, line2,
"ERROR: Untracked skb received. Probable use after free! "