include/uapi/linux/netfilter/xt_tcpudp.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _XT_TCPUDP_H
   3 #define _XT_TCPUDP_H
   4
   5 #include <linux/types.h>
   6
   7 /* TCP matching stuff */
   8 struct xt_tcp {
   9         __u16 spts[2];                  /* Source port range. */
  10         __u16 dpts[2];                  /* Destination port range. */
  11         __u8 option;                    /* TCP Option iff non-zero*/
  12         __u8 flg_mask;                  /* TCP flags mask byte */
  13         __u8 flg_cmp;                   /* TCP flags compare byte */
  14         __u8 invflags;                  /* Inverse flags */
  15 };
  16
  17 /* Values for "inv" field in struct ipt_tcp. */
  18 #define XT_TCP_INV_SRCPT        0x01    /* Invert the sense of source ports. */
  19 #define XT_TCP_INV_DSTPT        0x02    /* Invert the sense of dest ports. */
  20 #define XT_TCP_INV_FLAGS        0x04    /* Invert the sense of TCP flags. */
  21 #define XT_TCP_INV_OPTION       0x08    /* Invert the sense of option test. */
  22 #define XT_TCP_INV_MASK         0x0F    /* All possible flags. */
  23
  24 /* UDP matching stuff */
  25 struct xt_udp {
  26         __u16 spts[2];                  /* Source port range. */
  27         __u16 dpts[2];                  /* Destination port range. */
  28         __u8 invflags;                  /* Inverse flags */
  29 };
  30
  31 /* Values for "invflags" field in struct ipt_udp. */
  32 #define XT_UDP_INV_SRCPT        0x01    /* Invert the sense of source ports. */
  33 #define XT_UDP_INV_DSTPT        0x02    /* Invert the sense of dest ports. */
  34 #define XT_UDP_INV_MASK 0x03    /* All possible flags. */
  35
  36
  37 #endif