static int sess_param(struct iscsi_target *target, struct iscsi_param_info *info, int set)
{
struct iscsi_session *session = NULL;
struct iscsi_sess_param *param;
int err = -ENOENT;
if (set)
sess_param_check(info);
if (info->sid) {
if (!(session = session_lookup(target, info->sid)))
goto out;
param = &session->param;
} else {
param = &target->sess_param;
}
if (set) {
sess_param_set(param, info);
show_param(param);
} else
sess_param_get(param, info);
err = 0;
out:
return err;
}
static int get_conn_info(struct iscsi_target *target, unsigned long ptr)
{
struct iscsi_session *session;
struct iscsi_conn *conn;
struct conn_info info;
int err;
err = copy_from_user(&info, (void *) ptr, sizeof(info));
if (err)
return -EFAULT;
session = session_lookup(target, info.sid);
if (!session)
return -ENOENT;
conn = conn_lookup(session, info.cid);
if (!conn)
return -ENOENT;
info.cid = conn->cid;
info.stat_sn = conn->stat_sn;
info.exp_stat_sn = conn->exp_stat_sn;
err = copy_to_user((void *) ptr, &info, sizeof(info));
if (err)
return -EFAULT;
return 0;
}
static int add_conn(struct iscsi_target *target, unsigned long ptr)
{
int err;
struct iscsi_session *session;
struct conn_info info;
if ((err = copy_from_user(&info, (void *) ptr, sizeof(info))) < 0)
return err;
if (!(session = session_lookup(target, info.sid)))
return -ENOENT;
return conn_add(session, &info);
}
static int del_conn(struct iscsi_target *target, unsigned long ptr)
{
struct iscsi_session *session;
struct conn_info info;
int err;
err = copy_from_user(&info, (void *) ptr, sizeof(info));
if (err)
return -EFAULT;
session = session_lookup(target, info.sid);
if (!session)
return -ENOENT;
return conn_del(session, &info);
}
/* 连接信息从用户态转入内核态 */
static int add_conn(struct iscsi_target *target, unsigned long ptr)
{
struct iscsi_session *session;
struct conn_info info;
int err;
/* 拷贝用户态连接信息 */
err = copy_from_user(&info, (void *) ptr, sizeof(info));
if (err)
return -EFAULT;
/* 根据target和用户态连接信息中的会话id, 找到会话信息 */
session = session_lookup(target, info.sid);
if (!session)
return -ENOENT;
return conn_add(session, &info);
}
static int get_session_info(struct iscsi_target *target, unsigned long ptr)
{
int err;
struct iscsi_session *session;
struct session_info info;
if ((err = copy_from_user(&info, (void *) ptr, sizeof(info))) < 0)
return err;
session = session_lookup(target, info.sid);
if (!session)
return -ENOENT;
info.exp_cmd_sn = session->exp_cmd_sn;
info.max_cmd_sn = session->max_cmd_sn;
if (copy_to_user((void *) ptr, &info, sizeof(info)))
return -EFAULT;
return 0;
}
session_t *session_lookup_exi(struct v2gEXIDocument *exiIn)
{
uint64_t sessionid;
memcpy(&sessionid, exiIn->V2G_Message.Header.SessionID.bytes, 8);
return session_lookup(sessionid);
}
