static int l2tp_nl_session_send(struct sk_buff *skb, u32 pid, u32 seq, int flags,
struct l2tp_session *session)
{
void *hdr;
struct nlattr *nest;
struct l2tp_tunnel *tunnel = session->tunnel;
struct sock *sk = NULL;
sk = tunnel->sock;
hdr = genlmsg_put(skb, pid, seq, &l2tp_nl_family, flags, L2TP_CMD_SESSION_GET);
if (IS_ERR(hdr))
return PTR_ERR(hdr);
nla_put_u32(skb, L2TP_ATTR_CONN_ID, tunnel->tunnel_id);
nla_put_u32(skb, L2TP_ATTR_SESSION_ID, session->session_id);
nla_put_u32(skb, L2TP_ATTR_PEER_CONN_ID, tunnel->peer_tunnel_id);
nla_put_u32(skb, L2TP_ATTR_PEER_SESSION_ID, session->peer_session_id);
nla_put_u32(skb, L2TP_ATTR_DEBUG, session->debug);
nla_put_u16(skb, L2TP_ATTR_PW_TYPE, session->pwtype);
nla_put_u16(skb, L2TP_ATTR_MTU, session->mtu);
if (session->mru)
nla_put_u16(skb, L2TP_ATTR_MRU, session->mru);
if (session->ifname && session->ifname[0])
nla_put_string(skb, L2TP_ATTR_IFNAME, session->ifname);
if (session->cookie_len)
nla_put(skb, L2TP_ATTR_COOKIE, session->cookie_len, &session->cookie[0]);
if (session->peer_cookie_len)
nla_put(skb, L2TP_ATTR_PEER_COOKIE, session->peer_cookie_len, &session->peer_cookie[0]);
nla_put_u8(skb, L2TP_ATTR_RECV_SEQ, session->recv_seq);
nla_put_u8(skb, L2TP_ATTR_SEND_SEQ, session->send_seq);
nla_put_u8(skb, L2TP_ATTR_LNS_MODE, session->lns_mode);
#ifdef CONFIG_XFRM
if ((sk) && (sk->sk_policy[0] || sk->sk_policy[1]))
nla_put_u8(skb, L2TP_ATTR_USING_IPSEC, 1);
#endif
if (session->reorder_timeout)
nla_put_msecs(skb, L2TP_ATTR_RECV_TIMEOUT, session->reorder_timeout);
nest = nla_nest_start(skb, L2TP_ATTR_STATS);
if (nest == NULL)
goto nla_put_failure;
nla_put_u64(skb, L2TP_ATTR_TX_PACKETS, session->stats.tx_packets);
nla_put_u64(skb, L2TP_ATTR_TX_BYTES, session->stats.tx_bytes);
nla_put_u64(skb, L2TP_ATTR_TX_ERRORS, session->stats.tx_errors);
nla_put_u64(skb, L2TP_ATTR_RX_PACKETS, session->stats.rx_packets);
nla_put_u64(skb, L2TP_ATTR_RX_BYTES, session->stats.rx_bytes);
nla_put_u64(skb, L2TP_ATTR_RX_SEQ_DISCARDS, session->stats.rx_seq_discards);
nla_put_u64(skb, L2TP_ATTR_RX_OOS_PACKETS, session->stats.rx_oos_packets);
nla_put_u64(skb, L2TP_ATTR_RX_ERRORS, session->stats.rx_errors);
nla_nest_end(skb, nest);
return genlmsg_end(skb, hdr);
nla_put_failure:
genlmsg_cancel(skb, hdr);
return -1;
}
static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq, int flags,
struct l2tp_session *session, u8 cmd)
{
void *hdr;
struct nlattr *nest;
struct l2tp_tunnel *tunnel = session->tunnel;
struct sock *sk = NULL;
sk = tunnel->sock;
hdr = genlmsg_put(skb, portid, seq, &l2tp_nl_family, flags, cmd);
if (!hdr)
return -EMSGSIZE;
if (nla_put_u32(skb, L2TP_ATTR_CONN_ID, tunnel->tunnel_id) ||
nla_put_u32(skb, L2TP_ATTR_SESSION_ID, session->session_id) ||
nla_put_u32(skb, L2TP_ATTR_PEER_CONN_ID, tunnel->peer_tunnel_id) ||
nla_put_u32(skb, L2TP_ATTR_PEER_SESSION_ID,
session->peer_session_id) ||
nla_put_u32(skb, L2TP_ATTR_DEBUG, session->debug) ||
nla_put_u16(skb, L2TP_ATTR_PW_TYPE, session->pwtype) ||
nla_put_u16(skb, L2TP_ATTR_MTU, session->mtu) ||
(session->mru &&
nla_put_u16(skb, L2TP_ATTR_MRU, session->mru)))
goto nla_put_failure;
if ((session->ifname[0] &&
nla_put_string(skb, L2TP_ATTR_IFNAME, session->ifname)) ||
(session->cookie_len &&
nla_put(skb, L2TP_ATTR_COOKIE, session->cookie_len,
&session->cookie[0])) ||
(session->peer_cookie_len &&
nla_put(skb, L2TP_ATTR_PEER_COOKIE, session->peer_cookie_len,
&session->peer_cookie[0])) ||
nla_put_u8(skb, L2TP_ATTR_RECV_SEQ, session->recv_seq) ||
nla_put_u8(skb, L2TP_ATTR_SEND_SEQ, session->send_seq) ||
nla_put_u8(skb, L2TP_ATTR_LNS_MODE, session->lns_mode) ||
#ifdef CONFIG_XFRM
(((sk) && (sk->sk_policy[0] || sk->sk_policy[1])) &&
nla_put_u8(skb, L2TP_ATTR_USING_IPSEC, 1)) ||
#endif
(session->reorder_timeout &&
nla_put_msecs(skb, L2TP_ATTR_RECV_TIMEOUT,
session->reorder_timeout, L2TP_ATTR_PAD)))
goto nla_put_failure;
nest = nla_nest_start(skb, L2TP_ATTR_STATS);
if (nest == NULL)
goto nla_put_failure;
if (nla_put_u64_64bit(skb, L2TP_ATTR_TX_PACKETS,
atomic_long_read(&session->stats.tx_packets),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_TX_BYTES,
atomic_long_read(&session->stats.tx_bytes),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_TX_ERRORS,
atomic_long_read(&session->stats.tx_errors),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_RX_PACKETS,
atomic_long_read(&session->stats.rx_packets),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_RX_BYTES,
atomic_long_read(&session->stats.rx_bytes),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_RX_SEQ_DISCARDS,
atomic_long_read(&session->stats.rx_seq_discards),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_RX_OOS_PACKETS,
atomic_long_read(&session->stats.rx_oos_packets),
L2TP_ATTR_STATS_PAD) ||
nla_put_u64_64bit(skb, L2TP_ATTR_RX_ERRORS,
atomic_long_read(&session->stats.rx_errors),
L2TP_ATTR_STATS_PAD))
goto nla_put_failure;
nla_nest_end(skb, nest);
genlmsg_end(skb, hdr);
return 0;
nla_put_failure:
genlmsg_cancel(skb, hdr);
return -1;
}
