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batman-adv: Only use int up and down gw representation 

It is not save to provide memory for an int and then cast the pointer to
it to long*. It is better to standardize the up and down gateway
bandwith representation to simple ints and only use long inside
conversation routines.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Sven Eckelmann 2011-05-14 23:14:51 +02:00
parent 747e4221a0
commit 37a4065ec7
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
net/batman-adv/gateway_common.c
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@ -76,10 +76,11 @@ void gw_bandwidth_to_kbit(uint8_t gw_srv_class, int *down, int *up)
}
static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
long *up, long *down)
int *up, int *down)
{
int ret, multi = 1;
char *slash_ptr, *tmp_ptr;
long ldown, lup;
slash_ptr = strchr(buff, '/');
if (slash_ptr)
@ -96,7 +97,7 @@ static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
*tmp_ptr = '\0';
}
ret = strict_strtoul(buff, 10, down);
ret = strict_strtoul(buff, 10, &ldown);
if (ret) {
bat_err(net_dev,
"Download speed of gateway mode invalid: %s\n",
@ -104,7 +105,7 @@ static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
return false;
}
*down *= multi;
*down = ldown * multi;
/* we also got some upload info */
if (slash_ptr) {
@ -121,7 +122,7 @@ static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
*tmp_ptr = '\0';
}
ret = strict_strtoul(slash_ptr + 1, 10, up);
ret = strict_strtoul(slash_ptr + 1, 10, &lup);
if (ret) {
bat_err(net_dev,
"Upload speed of gateway mode invalid: "
@ -129,7 +130,7 @@ static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
return false;
}
*up *= multi;
*up = lup * multi;
}
return true;
@ -138,7 +139,8 @@ static bool parse_gw_bandwidth(struct net_device *net_dev, char *buff,
ssize_t gw_bandwidth_set(struct net_device *net_dev, char *buff, size_t count)
{
struct bat_priv *bat_priv = netdev_priv(net_dev);
long gw_bandwidth_tmp = 0, up = 0, down = 0;
long gw_bandwidth_tmp = 0;
int up = 0, down = 0;
bool ret;
ret = parse_gw_bandwidth(net_dev, buff, &up, &down);
@ -158,12 +160,11 @@ ssize_t gw_bandwidth_set(struct net_device *net_dev, char *buff, size_t count)
* speeds, hence we need to calculate it back to show the number
* that is going to be propagated
**/
gw_bandwidth_to_kbit((uint8_t)gw_bandwidth_tmp,
(int *)&down, (int *)&up);
gw_bandwidth_to_kbit((uint8_t)gw_bandwidth_tmp, &down, &up);
gw_deselect(bat_priv);
bat_info(net_dev, "Changing gateway bandwidth from: '%i' to: '%ld' "
"(propagating: %ld%s/%ld%s)\n",
"(propagating: %d%s/%d%s)\n",
atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp,
(down > 2048 ? down / 1024 : down),
(down > 2048 ? "MBit" : "KBit"),