Changing pf to use kmalloc instead of zalloc
I created a patch set that will convert pf to use kmalloc instead of
zalloc (with an intermediate step to use objcache).
The module with kmalloc compiles and loads fine so far, just I can't load
the ruleset anymore, pfctl chokes on
df386devel# pfctl -ef /etc/pf.conf
pfctl: DIOCSETLIMIT
pfctl: DIOCSETLIMIT
The relevant parts are in pfctl.c:
int
pfctl_load_limit(struct pfctl *pf, unsigned int his_index, unsigned int
limit)
{
struct pfioc_limit pl;
memset(&pl, 0, sizeof(pl));
pl.index = his_index;
pl.limit = limit;
if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
if (errno == EBUSY)
warnx("Current pool size exceeds requested hard
limit");
else
warnx("DIOCSETLIMIT");
return (1);
}
return (0);
}
in pf_ioctl.c:
case DIOCSETLIMIT: {
struct pfioc_limit *pl = (struct pfioc_limit *)addr;
int old_limit;
if (pl->index < 0 || pl->index >= PF_LIMIT_MAX ||
pf_pool_limits[pl->index].pp == NULL) {
error = EINVAL;
goto fail;
}
/* XXX Get an API to set limits on the zone/pool */
old_limit = pf_pool_limits[pl->index].limit;
pf_pool_limits[pl->index].limit = pl->limit;
pl->limit = old_limit;
break;
}
and in pfvar.h:
#define DIOCSETLIMIT _IOWR('D', 40, struct pfioc_limit)
I am at a loss here on how to proceed. Would it be ok to have DIOCSETLIMIT
always return true because I am not using pools anymore? Or just don't call
pfctl_load_limit() in pfctl anymore?
Need help! :)
Jan
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