lib/replace/system/network.h

   1 #ifndef _system_network_h
   2 #define _system_network_h
   3 /*
   4    Unix SMB/CIFS implementation.
   5
   6    networking system include wrappers
   7
   8    Copyright (C) Andrew Tridgell 2004
   9    Copyright (C) Jelmer Vernooij 2007
  10
  11      ** NOTE! The following LGPL license applies to the replace
  12      ** library. This does NOT imply that all of Samba is released
  13      ** under the LGPL
  14
  15    This library is free software; you can redistribute it and/or
  16    modify it under the terms of the GNU Lesser General Public
  17    License as published by the Free Software Foundation; either
  18    version 3 of the License, or (at your option) any later version.
  19
  20    This library is distributed in the hope that it will be useful,
  21    but WITHOUT ANY WARRANTY; without even the implied warranty of
  22    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23    Lesser General Public License for more details.
  24
  25    You should have received a copy of the GNU Lesser General Public
  26    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  27
  28 */
  29
  30 #ifndef LIBREPLACE_NETWORK_CHECKS
  31 #error "AC_LIBREPLACE_NETWORK_CHECKS missing in configure"
  32 #endif
  33
  34 #include <unistd.h>
  35
  36 #ifdef HAVE_SYS_SOCKET_H
  37 #include <sys/socket.h>
  38 #endif
  39
  40 #ifdef HAVE_UNIXSOCKET
  41 #include <sys/un.h>
  42 #endif
  43
  44 #ifdef HAVE_NETINET_IN_H
  45 #include <netinet/in.h>
  46 #endif
  47 #ifdef HAVE_ARPA_INET_H
  48 #include <arpa/inet.h>
  49 #endif
  50
  51 #ifdef HAVE_NETDB_H
  52 #include <netdb.h>
  53 #endif
  54
  55 #ifdef HAVE_NETINET_TCP_H
  56 #include <netinet/tcp.h>
  57 #endif
  58
  59 /*
  60  * The next three defines are needed to access the IPTOS_* options
  61  * on some systems.
  62  */
  63
  64 #ifdef HAVE_NETINET_IN_SYSTM_H
  65 #include <netinet/in_systm.h>
  66 #endif
  67
  68 #ifdef HAVE_NETINET_IN_IP_H
  69 #include <netinet/in_ip.h>
  70 #endif
  71
  72 #ifdef HAVE_NETINET_IP_H
  73 #include <netinet/ip.h>
  74 #endif
  75
  76 #ifdef HAVE_NET_IF_H
  77 #include <net/if.h>
  78 #endif
  79
  80 #ifdef HAVE_UNISTD_H
  81 #include <unistd.h>
  82 #endif
  83
  84 #ifdef HAVE_SYS_IOCTL_H
  85 #include <sys/ioctl.h>
  86 #endif
  87
  88 #ifdef HAVE_SYS_UIO_H
  89 #include <sys/uio.h>
  90 #endif
  91
  92 #ifdef HAVE_STROPTS_H
  93 #include <stropts.h>
  94 #endif
  95
  96 #ifndef HAVE_SOCKLEN_T
  97 #define HAVE_SOCKLEN_T
  98 typedef int socklen_t;
  99 #endif
 100
 101 #if !defined (HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
 102 /* define is in "replace.h" */
 103 char *rep_inet_ntoa(struct in_addr ip);
 104 #endif
 105
 106 #ifndef HAVE_INET_PTON
 107 /* define is in "replace.h" */
 108 int rep_inet_pton(int af, const char *src, void *dst);
 109 #endif
 110
 111 #ifndef HAVE_INET_NTOP
 112 /* define is in "replace.h" */
 113 const char *rep_inet_ntop(int af, const void *src, char *dst, socklen_t size);
 114 #endif
 115
 116 #ifndef HAVE_INET_ATON
 117 /* define is in "replace.h" */
 118 int rep_inet_aton(const char *src, struct in_addr *dst);
 119 #endif
 120
 121 #ifndef HAVE_CONNECT
 122 /* define is in "replace.h" */
 123 int rep_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
 124 #endif
 125
 126 #ifndef HAVE_GETHOSTBYNAME
 127 /* define is in "replace.h" */
 128 struct hostent *rep_gethostbyname(const char *name);
 129 #endif
 130
 131 #ifdef HAVE_IFADDRS_H
 132 #include <ifaddrs.h>
 133 #endif
 134
 135 #ifndef HAVE_STRUCT_IFADDRS
 136 struct ifaddrs {
 137         struct ifaddrs   *ifa_next;         /* Pointer to next struct */
 138         char             *ifa_name;         /* Interface name */
 139         unsigned int     ifa_flags;         /* Interface flags */
 140         struct sockaddr  *ifa_addr;         /* Interface address */
 141         struct sockaddr  *ifa_netmask;      /* Interface netmask */
 142 #undef ifa_dstaddr
 143         struct sockaddr  *ifa_dstaddr;      /* P2P interface destination */
 144         void             *ifa_data;         /* Address specific data */
 145 };
 146 #endif
 147
 148 #ifndef HAVE_GETIFADDRS
 149 int rep_getifaddrs(struct ifaddrs **);
 150 #endif
 151
 152 #ifndef HAVE_FREEIFADDRS
 153 void rep_freeifaddrs(struct ifaddrs *);
 154 #endif
 155
 156 #ifndef HAVE_SOCKETPAIR
 157 /* define is in "replace.h" */
 158 int rep_socketpair(int d, int type, int protocol, int sv[2]);
 159 #endif
 160
 161 /*
 162  * Some systems have getaddrinfo but not the
 163  * defines needed to use it.
 164  */
 165
 166 /* Various macros that ought to be in <netdb.h>, but might not be */
 167
 168 #ifndef EAI_FAIL
 169 #define EAI_BADFLAGS    (-1)
 170 #define EAI_NONAME      (-2)
 171 #define EAI_AGAIN       (-3)
 172 #define EAI_FAIL        (-4)
 173 #define EAI_FAMILY      (-6)
 174 #define EAI_SOCKTYPE    (-7)
 175 #define EAI_SERVICE     (-8)
 176 #define EAI_MEMORY      (-10)
 177 #define EAI_SYSTEM      (-11)
 178 #endif   /* !EAI_FAIL */
 179
 180 #ifndef AI_PASSIVE
 181 #define AI_PASSIVE      0x0001
 182 #endif
 183
 184 #ifndef AI_CANONNAME
 185 #define AI_CANONNAME    0x0002
 186 #endif
 187
 188 #ifndef AI_NUMERICHOST
 189 /*
 190  * some platforms don't support AI_NUMERICHOST; define as zero if using
 191  * the system version of getaddrinfo...
 192  */
 193 #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
 194 #define AI_NUMERICHOST  0
 195 #else
 196 #define AI_NUMERICHOST  0x0004
 197 #endif
 198 #endif
 199
 200 /*
 201  * Some of the functions in source3/lib/util_sock.c use AI_ADDRCONFIG. On QNX
 202  * 6.3.0, this macro is defined but, if it's used, getaddrinfo will fail. This
 203  * prevents smbd from opening any sockets.
 204  *
 205  * If I undefine AI_ADDRCONFIG on such systems and define it to be 0,
 206  * this works around the issue.
 207  */
 208 #ifdef __QNX__
 209 #include <sys/neutrino.h>
 210 #if _NTO_VERSION == 630
 211 #undef AI_ADDRCONFIG
 212 #endif
 213 #endif
 214 #ifndef AI_ADDRCONFIG
 215 /*
 216  * logic copied from AI_NUMERICHOST
 217  */
 218 #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
 219 #define AI_ADDRCONFIG   0
 220 #else
 221 #define AI_ADDRCONFIG   0x0020
 222 #endif
 223 #endif
 224
 225 #ifndef AI_NUMERICSERV
 226 /*
 227  * logic copied from AI_NUMERICHOST
 228  */
 229 #if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO)
 230 #define AI_NUMERICSERV  0
 231 #else
 232 #define AI_NUMERICSERV  0x0400
 233 #endif
 234 #endif
 235
 236 #ifndef NI_NUMERICHOST
 237 #define NI_NUMERICHOST  1
 238 #endif
 239
 240 #ifndef NI_NUMERICSERV
 241 #define NI_NUMERICSERV  2
 242 #endif
 243
 244 #ifndef NI_NOFQDN
 245 #define NI_NOFQDN       4
 246 #endif
 247
 248 #ifndef NI_NAMEREQD
 249 #define NI_NAMEREQD     8
 250 #endif
 251
 252 #ifndef NI_DGRAM
 253 #define NI_DGRAM        16
 254 #endif
 255
 256
 257 #ifndef NI_MAXHOST
 258 #define NI_MAXHOST      1025
 259 #endif
 260
 261 #ifndef NI_MAXSERV
 262 #define NI_MAXSERV      32
 263 #endif
 264
 265 /*
 266  * glibc on linux doesn't seem to have MSG_WAITALL
 267  * defined. I think the kernel has it though..
 268  */
 269 #ifndef MSG_WAITALL
 270 #define MSG_WAITALL 0
 271 #endif
 272
 273 #ifndef INADDR_LOOPBACK
 274 #define INADDR_LOOPBACK 0x7f000001
 275 #endif
 276
 277 #ifndef INADDR_NONE
 278 #define INADDR_NONE 0xffffffff
 279 #endif
 280
 281 #ifndef EAFNOSUPPORT
 282 #define EAFNOSUPPORT EINVAL
 283 #endif
 284
 285 #ifndef INET_ADDRSTRLEN
 286 #define INET_ADDRSTRLEN 16
 287 #endif
 288
 289 #ifndef INET6_ADDRSTRLEN
 290 #define INET6_ADDRSTRLEN 46
 291 #endif
 292
 293 #ifndef HOST_NAME_MAX
 294 #define HOST_NAME_MAX 255
 295 #endif
 296
 297 #ifndef MAXHOSTNAMELEN
 298 #define MAXHOSTNAMELEN HOST_NAME_MAX
 299 #endif
 300
 301 #ifndef HAVE_SA_FAMILY_T
 302 #define HAVE_SA_FAMILY_T
 303 typedef unsigned short int sa_family_t;
 304 #endif
 305
 306 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
 307 #define HAVE_STRUCT_SOCKADDR_STORAGE
 308 #ifdef HAVE_STRUCT_SOCKADDR_IN6
 309 #define sockaddr_storage sockaddr_in6
 310 #define ss_family sin6_family
 311 #define HAVE_SS_FAMILY 1
 312 #else /*HAVE_STRUCT_SOCKADDR_IN6*/
 313 #define sockaddr_storage sockaddr_in
 314 #define ss_family sin_family
 315 #define HAVE_SS_FAMILY 1
 316 #endif /*HAVE_STRUCT_SOCKADDR_IN6*/
 317 #endif /*HAVE_STRUCT_SOCKADDR_STORAGE*/
 318
 319 #ifndef HAVE_SS_FAMILY
 320 #ifdef HAVE___SS_FAMILY
 321 #define ss_family __ss_family
 322 #define HAVE_SS_FAMILY 1
 323 #endif
 324 #endif
 325
 326 #ifndef IOV_MAX
 327 # ifdef UIO_MAXIOV
 328 #  define IOV_MAX UIO_MAXIOV
 329 # else
 330 #  ifdef __sgi
 331     /*
 332      * IRIX 6.5 has sysconf(_SC_IOV_MAX)
 333      * which might return 512 or bigger
 334      */
 335 #   define IOV_MAX 512
 336 #  endif
 337 # endif
 338 #endif
 339
 340 #ifndef HAVE_STRUCT_ADDRINFO
 341 #define HAVE_STRUCT_ADDRINFO
 342 struct addrinfo {
 343         int                     ai_flags;
 344         int                     ai_family;
 345         int                     ai_socktype;
 346         int                     ai_protocol;
 347         socklen_t               ai_addrlen;
 348         struct sockaddr         *ai_addr;
 349         char                    *ai_canonname;
 350         struct addrinfo         *ai_next;
 351 };
 352 #endif   /* HAVE_STRUCT_ADDRINFO */
 353
 354 #if !defined(HAVE_GETADDRINFO)
 355 #include "getaddrinfo.h"
 356 #endif
 357
 358 /* Needed for some systems that don't define it (Solaris). */
 359 #ifndef ifr_netmask
 360 #define ifr_netmask ifr_addr
 361 #endif
 362
 363 /* Some old Linux systems have broken header files */
 364 #ifdef HAVE_IPV6
 365 #ifdef HAVE_LINUX_IPV6_V6ONLY_26
 366 #define IPV6_V6ONLY 26
 367 #endif /* HAVE_LINUX_IPV6_V6ONLY_26 */
 368 #endif /* HAVE_IPV6 */
 369
 370 #ifdef SOCKET_WRAPPER
 371 #ifndef SOCKET_WRAPPER_DISABLE
 372 #ifndef SOCKET_WRAPPER_NOT_REPLACE
 373 #define SOCKET_WRAPPER_REPLACE
 374 #endif /* SOCKET_WRAPPER_NOT_REPLACE */
 375 #include "../socket_wrapper/socket_wrapper.h"
 376 #endif /* SOCKET_WRAPPER_DISABLE */
 377 #endif /* SOCKET_WRAPPER */
 378
 379 #ifdef UID_WRAPPER
 380 # ifndef UID_WRAPPER_DISABLE
 381 #  ifndef UID_WRAPPER_NOT_REPLACE
 382 #   define UID_WRAPPER_REPLACE
 383 #  endif /* UID_WRAPPER_NOT_REPLACE */
 384 #  include "../uid_wrapper/uid_wrapper.h"
 385 # endif /* UID_WRAPPER_DISABLE */
 386 #else /* UID_WRAPPER */
 387 # define uwrap_enabled() 0
 388 #endif /* UID_WRAPPER */
 389
 390 #endif