xio-socket.h

   1 /* source: xio-socket.h */
   2 /* Copyright Gerhard Rieger and contributors (see file CHANGES) */
   3 /* Published under the GNU General Public License V.2, see file COPYING */
   4
   5 #ifndef __xio_socket_h_included
   6 #define __xio_socket_h_included 1
   7
   8 /* SO_PROTOTYPE is defined on Solaris, HP-UX
   9    SO_PROTOCOL in Linux, is the better name, but came much later, now
  10    standardised in POSIX 2024
  11    illumos defines both, with SO_PROTOCOL as an alias of SO_PROTOTYPE */
  12 #ifdef SO_PROTOCOL
  13 #  ifndef SO_PROTOTYPE
  14 #    define SO_PROTOTYPE SO_PROTOCOL
  15 #  endif
  16 #else
  17 #  ifdef SO_PROTOTYPE
  18 #    define SO_PROTOCOL SO_PROTOTYPE
  19 #  else
  20 /* Even when SO_PROTOCOL is not available for setsockopt() Socat uses it
  21    internally as option for 3rd arg of socket() e.a. */
  22 #    define SO_PROTOCOL 0x9999
  23 #    define SO_PROTOTYPE SO_PROTOCOL
  24 #  endif
  25 #endif
  26
  27 extern const struct addrdesc xioaddr_socket_connect;
  28 extern const struct addrdesc xioaddr_socket_listen;
  29 extern const struct addrdesc xioaddr_socket_sendto;
  30 extern const struct addrdesc xioaddr_socket_datagram;
  31 extern const struct addrdesc xioaddr_socket_recvfrom;
  32 extern const struct addrdesc xioaddr_socket_recv;
  33
  34 extern const struct optdesc opt_connect_timeout;
  35 extern const struct optdesc opt_so_debug;
  36 extern const struct optdesc opt_so_acceptconn;
  37 extern const struct optdesc opt_so_broadcast;
  38 extern const struct optdesc opt_so_reuseaddr;
  39 extern const struct optdesc opt_so_keepalive;
  40 extern const struct optdesc opt_so_linger;
  41 extern const struct optdesc opt_so_linger;
  42 extern const struct optdesc opt_so_oobinline;
  43 extern const struct optdesc opt_so_sndbuf;
  44 extern const struct optdesc opt_so_sndbuf_late;
  45 extern const struct optdesc opt_so_rcvbuf;
  46 extern const struct optdesc opt_so_rcvbuf_late;
  47 extern const struct optdesc opt_so_error;
  48 extern const struct optdesc opt_so_type;
  49 extern const struct optdesc opt_so_dontroute;
  50 extern const struct optdesc opt_so_rcvlowat;
  51 extern const struct optdesc opt_so_sndlowat;
  52 extern const struct optdesc opt_so_rcvtimeo;
  53 extern const struct optdesc opt_so_sndtimeo;
  54 extern const struct optdesc opt_so_audit;
  55 extern const struct optdesc opt_so_attach_filter;
  56 extern const struct optdesc opt_so_detach_filter;
  57 extern const struct optdesc opt_so_bindtodevice;
  58 extern const struct optdesc opt_so_bsdcompat;
  59 extern const struct optdesc opt_so_cksumrecv;
  60 extern const struct optdesc opt_so_timestamp;
  61 extern const struct optdesc opt_so_kernaccept;
  62 extern const struct optdesc opt_so_no_check;
  63 extern const struct optdesc opt_so_noreuseaddr;
  64 extern const struct optdesc opt_so_passcred;
  65 extern const struct optdesc opt_so_peercred;
  66 extern const struct optdesc opt_so_priority;
  67 extern const struct optdesc opt_so_reuseport;
  68 extern const struct optdesc opt_so_security_authentication;
  69 extern const struct optdesc opt_so_security_encryption_network;
  70 extern const struct optdesc opt_so_security_encryption_transport;
  71 extern const struct optdesc opt_so_use_ifbufs;
  72 extern const struct optdesc opt_so_useloopback;
  73 extern const struct optdesc opt_so_dgram_errind;
  74 extern const struct optdesc opt_so_dontlinger;
  75 extern const struct optdesc opt_so_prototype;
  76 extern const struct optdesc opt_fiosetown;
  77 extern const struct optdesc opt_siocspgrp;
  78 extern const struct optdesc opt_bind;
  79 extern const struct optdesc opt_protocol_family;
  80 extern const struct optdesc opt_setsockopt;
  81 extern const struct optdesc opt_setsockopt_int;
  82 extern const struct optdesc opt_setsockopt_bin;
  83 extern const struct optdesc opt_setsockopt_string;
  84 extern const struct optdesc opt_setsockopt_listen;
  85 extern const struct optdesc opt_null_eof;
  86
  87
  88 extern
  89 char *xiogetifname(int ind, char *val, int ins);
  90
  91 extern int retropt_socket_pf(struct opt *opts, int *pf);
  92 extern int xiogetancillary(int fd, struct msghdr *msgh, int flags);
  93
  94 extern int xioopen_connect(struct single *fd,
  95                             union sockaddr_union *us, size_t uslen,
  96                             struct sockaddr *them, size_t themlen,
  97                             struct opt *opts,
  98                            int pf, int socktype, int protocol,
  99                             bool alt);
 100 extern int _xioopen_connect(struct single *fd,
 101                             union sockaddr_union *us, size_t uslen,
 102                             struct sockaddr *them, size_t themlen,
 103                             struct opt *opts,
 104                             int pf, int socktype, int protocol,
 105                             bool alt, int level);
 106
 107 /* common to xioopen_udp_sendto, ..unix_sendto, ..rawip */
 108 extern
 109 int _xioopen_dgram_sendto(/* them is already in xfd->peersa */
 110                         union sockaddr_union *us, socklen_t uslen,
 111                         struct opt *opts,
 112                         int xioflags, xiosingle_t *xfd, groups_t groups,
 113                         int pf, int socktype, int ipproto, bool alt);
 114 extern
 115 int _xioopen_dgram_recvfrom(struct single *xfd, int xioflags,
 116                             struct sockaddr *us, socklen_t uslen,
 117                             struct opt *opts,
 118                             int pf, int socktype, int proto, int level);
 119 extern
 120 int _xioopen_dgram_recv(struct single *xfd, int xioflags,
 121                         struct sockaddr *us, socklen_t uslen,
 122                         struct opt *opts, int pf, int socktype, int proto,
 123                         int level);
 124 extern int xiodopacketinfo(struct single *sfd, struct msghdr *msgh, bool withlog, bool withenv);
 125 extern
 126 int xiogetpacketsrc(int fd, struct msghdr *msgh, int flags);
 127 extern
 128 int xiocheckpeer(xiosingle_t *xfd,
 129                  union sockaddr_union *pa, union sockaddr_union *la);
 130 extern
 131 int xiosetsockaddrenv(const char *lr, union sockaddr_union *sau, socklen_t salen, int proto);
 132
 133 extern int xioparsenetwork(const char *rangename, int pf, struct xiorange *range, const int ai_flags[2]);
 134 extern int xioparserange(const char *rangename, int pf, struct xiorange *range, const int ai_flags[2]);
 135
 136 extern int
 137 xiosocket(struct opt *opts, int pf, int socktype, int proto, int level);
 138 extern int
 139 xiosocketpair(struct opt *opts, int pf, int socktype, int proto, int sv[2]);
 140 extern int xiosock_reuseaddr(int fd, int ipproto, struct opt *opts);
 141
 142 #endif /* !defined(__xio_socket_h_included) */