�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _NF_CONNTRACK_TCP_H #define _NF_CONNTRACK_TCP_H /* TCP tracking. */ #include /* This is exposed to userspace (ctnetlink) */ enum tcp_conntrack { TCP_CONNTRACK_NONE, TCP_CONNTRACK_SYN_SENT, TCP_CONNTRACK_SYN_RECV, TCP_CONNTRACK_ESTABLISHED, TCP_CONNTRACK_FIN_WAIT, TCP_CONNTRACK_CLOSE_WAIT, TCP_CONNTRACK_LAST_ACK, TCP_CONNTRACK_TIME_WAIT, TCP_CONNTRACK_CLOSE, TCP_CONNTRACK_LISTEN, /* obsolete */ #define TCP_CONNTRACK_SYN_SENT2 TCP_CONNTRACK_LISTEN TCP_CONNTRACK_MAX, TCP_CONNTRACK_IGNORE, TCP_CONNTRACK_RETRANS, TCP_CONNTRACK_UNACK, TCP_CONNTRACK_TIMEOUT_MAX }; /* Window scaling is advertised by the sender */ #define IP_CT_TCP_FLAG_WINDOW_SCALE 0x01 /* SACK is permitted by the sender */ #define IP_CT_TCP_FLAG_SACK_PERM 0x02 /* This sender sent FIN first */ #define IP_CT_TCP_FLAG_CLOSE_INIT 0x04 /* Be liberal in window checking */ #define IP_CT_TCP_FLAG_BE_LIBERAL 0x08 /* Has unacknowledged data */ #define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED 0x10 /* The field td_maxack has been set */ #define IP_CT_TCP_FLAG_MAXACK_SET 0x20 /* Marks possibility for expected RFC5961 challenge ACK */ #define IP_CT_EXP_CHALLENGE_ACK 0x40 /* Simultaneous open initialized */ #define IP_CT_TCP_SIMULTANEOUS_OPEN 0x80 struct nf_ct_tcp_flags { __u8 flags; __u8 mask; }; #endif /* _NF_CONNTRACK_TCP_H */