anonfunc/xtables-addons
1
0
Fork 0
mirror of git://git.code.sf.net/p/xtables-addons/xtables-addons synced 2025-09-06 20:55:13 +02:00
Code Issues Releases Wiki Activity

psd: style: add explicit comparisons where not used in bool context

Browse Source
This commit is contained in:
Jan Engelhardt
2009-08-14 20:26:37 +02:00
parent 5b07e04600
commit 65a257a67d
1 changed files with 15 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
extensions/xt_psd.c
View File

@@ -93,7 +93,7 @@ static inline int hashfunc(struct in_addr addr)
hash = 0;
do {
hash ^= value;
} while ((value >>= HASH_LOG));
} while ((value >>= HASH_LOG) != 0);
return hash & (HASH_SIZE - 1);
}
@@ -148,7 +148,7 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
/* We're using IP address 0.0.0.0 for a special purpose here, so don't let
* them spoof us. [DHCP needs this feature - HW] */
if (!addr.s_addr) {
if (addr.s_addr == 0) {
pr_debug(KBUILD_MODNAME "spoofed source address (0.0.0.0)\n");
return false;
}
@@ -162,16 +162,16 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
/* Do we know this source address already? */
count = 0;
last = NULL;
if ((curr = *(head = &state.hash[hash = hashfunc(addr)])))
if ((curr = *(head = &state.hash[hash = hashfunc(addr)])) != NULL)
do {
if (curr->src_addr.s_addr == addr.s_addr)
break;
count++;
if (curr->next)
if (curr->next != NULL)
last = curr;
} while ((curr = curr->next));
} while ((curr = curr->next) != NULL);
if (curr) {
if (curr != NULL) {
/* We know this address, and the entry isn't too old. Update it. */
if (now - curr->timestamp <= (psdinfo->delay_threshold*HZ)/100 &&
@@ -233,9 +233,9 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
* remove from the hash table. We'll allocate a new entry instead since
* this one might get re-used too soon. */
curr->src_addr.s_addr = 0;
if (last)
if (last != NULL)
last->next = last->next->next;
else if (*head)
else if (*head != NULL)
*head = (*head)->next;
last = NULL;
}
@@ -247,7 +247,7 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
/* Got too many source addresses with the same hash value? Then remove the
* oldest one from the hash table, so that they can't take too much of our
* CPU time even with carefully chosen spoofed IP addresses. */
if (count >= HASH_MAX && last)
if (count >= HASH_MAX && last != NULL)
last->next = NULL;
/* We're going to re-use the oldest list entry, so remove it from the hash
@@ -255,23 +255,23 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
* hash table already because of the HASH_MAX check above). */
/* First, find it */
if (state.list[state.index].src_addr.s_addr)
if (state.list[state.index].src_addr.s_addr != 0)
head = &state.hash[hashfunc(state.list[state.index].src_addr)];
else
head = &last;
last = NULL;
if ((curr = *head))
if ((curr = *head) != NULL)
do {
if (curr == &state.list[state.index])
break;
last = curr;
} while ((curr = curr->next));
} while ((curr = curr->next) != NULL);
/* Then, remove it */
if (curr) {
if (last)
if (curr != NULL) {
if (last != NULL)
last->next = last->next->next;
else if (*head)
else if (*head != NULL)
*head = (*head)->next;
}