static int ioctl2AttrDelete(pfs_cache_t *clink, void *arg)
{
pfs_aentry_t *aentry;
if ((aentry = getAentry(clink, arg, NULL, PFS_AENTRY_MODE_DELETE)) == NULL)
return -ENOENT;
clink->flags |= PFS_CACHE_FLAG_DIRTY;
return 0;
}
int ioctl2AttrDelete(pfs_cache_t *clink, void *arg)
{
pfs_aentry_t *aentry;
if((aentry=getAentry(clink, arg, 0, 2))==NULL)
return -ENOENT;
clink->flags|=CACHE_FLAG_DIRTY;
return 0;
}
static int ioctl2AttrLookUp(pfs_cache_t *clink, char *key, char *value)
{
pfs_aentry_t *aentry;
if ((aentry = getAentry(clink, key, NULL, PFS_AENTRY_MODE_LOOKUP)) != NULL) {
memcpy(value, &aentry->str[aentry->kLen], aentry->vLen);
value[aentry->vLen] = 0;
return aentry->vLen;
}
return -ENOENT;
}
int ioctl2AttrLoopUp(pfs_cache_t *clink, char *key, char *value)
{
pfs_aentry_t *aentry;
if((aentry=getAentry(clink, key, 0, 0))){
memcpy(value, &aentry->str[aentry->kLen], aentry->vLen);
value[aentry->vLen]=0;
return aentry->vLen;
}
return -ENOENT;
}
static int ioctl2AttrAdd(pfs_cache_t *clink, pfs_ioctl2attr_t *attr)
{
u32 kLen, vLen;
pfs_aentry_t *aentry;
u32 tmp;
// input check
kLen = strlen(attr->key);
vLen = strlen(attr->value);
if (kLen >= PFS_AENTRY_KEY_MAX || vLen >= PFS_AENTRY_VALUE_MAX) // max size bounds check
return -EINVAL;
if (kLen == 0 || vLen == 0) // no input check
return -EINVAL;
if (getAentry(clink, attr->key, NULL, PFS_AENTRY_MODE_LOOKUP))
return -EEXIST;
if ((aentry = getAentry(clink, attr->key, attr->value, PFS_AENTRY_MODE_ADD)) == NULL)
return -ENOSPC;
if (aentry->kLen == 0)
tmp = aentry->aLen;
else
tmp = aentry->aLen - ((aentry->kLen + (aentry->vLen + 7)) & 0x3FC); //The only case that uses 0x3FC within the whole PFS driver.
aentry->aLen -= tmp;
aentry = (pfs_aentry_t *)((u8 *)aentry + aentry->aLen);
aentry->kLen = kLen;
aentry->vLen = vLen;
aentry->aLen = tmp;
memcpy(&aentry->str[0], attr->key, aentry->kLen);
memcpy(&aentry->str[aentry->kLen], attr->value, aentry->vLen);
clink->flags |= PFS_CACHE_FLAG_DIRTY;
return 0;
}
int ioctl2AttrAdd(pfs_cache_t *clink, pfs_ioctl2attr_t *attr)
{
u32 kLen, vLen;
pfs_aentry_t *aentry;
u32 tmp;
// input check
kLen=strlen(attr->key);
vLen=strlen(attr->value);
if(kLen>=256 || vLen>=256) // max size safe e check
return -EINVAL;
if(kLen==0 || vLen==0) // no input check
return -EINVAL;
if(getAentry(clink, attr->key, NULL, 0))
return -EEXIST;
if(!(aentry=getAentry(clink, attr->key, attr->value, 1)))
return -ENOSPC;
if(aentry->kLen==0)
tmp=aentry->aLen;
else
tmp=aentry->aLen-((aentry->kLen+(aentry->vLen + 7)) & ~3);
aentry->aLen-=tmp;
(char *)aentry+=aentry->aLen;
aentry->kLen=kLen;
aentry->vLen=vLen;
aentry->aLen=tmp;
memcpy(&aentry->str[0], attr->key, aentry->kLen);
memcpy(&aentry->str[aentry->kLen], attr->value, aentry->vLen);
clink->flags|=CACHE_FLAG_DIRTY;
return 0;
}
