static int trgt_mgmt_params(int tid, uint64_t sid, char *params)
{
char *p, *q;
uint32_t s_partial = 0, t_partial = 0;
struct iscsi_param s_param[session_key_last];
struct iscsi_param t_param[target_key_last];
while ((p = strsep(¶ms, ",")) != NULL) {
int idx;
uint32_t val;
if (!*p)
continue;
if (!(q = strchr(p, '=')))
continue;
*q++ = '\0';
val = strtol(q, NULL, 0);
if (!((idx = param_index_by_name(p, target_keys)) < 0)) {
if (!param_check_val(target_keys, idx, &val))
t_partial |= (1 << idx);
else
eprintf("invalid val %s, %u\n",
target_keys[idx].name, val);
t_param[idx].val = val;
continue;
}
if (!((idx = param_index_by_name(p, session_keys)) < 0)) {
if (!param_check_val(session_keys, idx, &val))
s_partial |= (1 << idx);
else
eprintf("invalid val %s, %u\n",
session_keys[idx].name, val);
s_param[idx].val = val;
}
}
if (t_partial && s_partial) {
eprintf("%s", "Cannot change both at the same time\n");
return -EINVAL;
} else if (t_partial)
return iscsi_param_set(tid, sid, key_target, t_partial, t_param);
else if (s_partial)
return iscsi_param_set(tid, sid, key_session, s_partial, s_param);
else
eprintf("%s", "Nothing to do\n");
return 0;
}
static int iscsi_param_partial_set(int tid, uint64_t sid, int type, int key,
uint32_t val)
{
struct iscsi_param *param;
struct iscsi_param s_param[session_key_last];
struct iscsi_param t_param[target_key_last];
if (type == key_session)
param = s_param;
else
param = t_param;
param[key].val = val;
return iscsi_param_set(tid, sid, type, 1 << key, param);
}
static int iscsi_param_config(struct iscsi_target *target, unsigned long ptr, int set)
{
int err;
struct iscsi_param_info info;
if ((err = copy_from_user(&info, (void *) ptr, sizeof(info))) < 0)
goto out;
if ((err = iscsi_param_set(target, &info, set)) < 0)
goto out;
if (!set)
err = copy_to_user((void *) ptr, &info, sizeof(info));
out:
return err;
}
static int iscsi_param_config(struct iscsi_target *target, unsigned long ptr, int set)
{
struct iscsi_param_info info;
int err;
err = copy_from_user(&info, (void *) ptr, sizeof(info));
if (err)
return -EFAULT;
err = iscsi_param_set(target, &info, set);
if (err < 0 || set)
return err;
err = copy_to_user((void *) ptr, &info, sizeof(info));
if (err)
return -EFAULT;
return 0;
}
