lib/tsocket/tsocket.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher 2009
   5
   6      ** NOTE! The following LGPL license applies to the tevent
   7      ** library. This does NOT imply that all of Samba is released
   8      ** under the LGPL
   9
  10    This library is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU Lesser General Public
  12    License as published by the Free Software Foundation; either
  13    version 3 of the License, or (at your option) any later version.
  14
  15    This library is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Lesser General Public License for more details.
  19
  20    You should have received a copy of the GNU Lesser General Public
  21    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #ifndef _TSOCKET_H
  25 #define _TSOCKET_H
  26
  27 #include <talloc.h>
  28 #include <tevent.h>
  29
  30 struct tsocket_address;
  31 struct tdgram_context;
  32 struct tstream_context;
  33 struct iovec;
  34
  35 /*
  36  * tsocket_address related functions
  37  */
  38 char *tsocket_address_string(const struct tsocket_address *addr,
  39                              TALLOC_CTX *mem_ctx);
  40
  41 struct tsocket_address *_tsocket_address_copy(const struct tsocket_address *addr,
  42                                               TALLOC_CTX *mem_ctx,
  43                                               const char *location);
  44
  45 #define tsocket_address_copy(addr, mem_ctx) \
  46         _tsocket_address_copy(addr, mem_ctx, __location__)
  47
  48 /*
  49  * tdgram_context related functions
  50  */
  51 struct tevent_req *tdgram_recvfrom_send(TALLOC_CTX *mem_ctx,
  52                                         struct tevent_context *ev,
  53                                         struct tdgram_context *dgram);
  54 ssize_t tdgram_recvfrom_recv(struct tevent_req *req,
  55                              int *perrno,
  56                              TALLOC_CTX *mem_ctx,
  57                              uint8_t **buf,
  58                              struct tsocket_address **src);
  59
  60 struct tevent_req *tdgram_sendto_send(TALLOC_CTX *mem_ctx,
  61                                       struct tevent_context *ev,
  62                                       struct tdgram_context *dgram,
  63                                       const uint8_t *buf, size_t len,
  64                                       const struct tsocket_address *dst);
  65 ssize_t tdgram_sendto_recv(struct tevent_req *req,
  66                            int *perrno);
  67
  68 struct tevent_req *tdgram_disconnect_send(TALLOC_CTX *mem_ctx,
  69                                           struct tevent_context *ev,
  70                                           struct tdgram_context *dgram);
  71 int tdgram_disconnect_recv(struct tevent_req *req,
  72                            int *perrno);
  73
  74 /*
  75  * tstream_context related functions
  76  */
  77 ssize_t tstream_pending_bytes(struct tstream_context *stream);
  78
  79 struct tevent_req *tstream_readv_send(TALLOC_CTX *mem_ctx,
  80                                       struct tevent_context *ev,
  81                                       struct tstream_context *stream,
  82                                       struct iovec *vector,
  83                                       size_t count);
  84 int tstream_readv_recv(struct tevent_req *req,
  85                        int *perrno);
  86
  87 struct tevent_req *tstream_writev_send(TALLOC_CTX *mem_ctx,
  88                                        struct tevent_context *ev,
  89                                        struct tstream_context *stream,
  90                                        const struct iovec *vector,
  91                                        size_t count);
  92 int tstream_writev_recv(struct tevent_req *req,
  93                         int *perrno);
  94
  95 struct tevent_req *tstream_disconnect_send(TALLOC_CTX *mem_ctx,
  96                                            struct tevent_context *ev,
  97                                            struct tstream_context *stream);
  98 int tstream_disconnect_recv(struct tevent_req *req,
  99                             int *perrno);
 100
 101 /*
 102  * BSD sockets: inet, inet6 and unix
 103  */
 104
 105 int _tsocket_address_inet_from_strings(TALLOC_CTX *mem_ctx,
 106                                        const char *fam,
 107                                        const char *addr,
 108                                        uint16_t port,
 109                                        struct tsocket_address **_addr,
 110                                        const char *location);
 111 #define tsocket_address_inet_from_strings(mem_ctx, fam, addr, port, _addr) \
 112         _tsocket_address_inet_from_strings(mem_ctx, fam, addr, port, _addr, \
 113                                            __location__)
 114
 115 char *tsocket_address_inet_addr_string(const struct tsocket_address *addr,
 116                                        TALLOC_CTX *mem_ctx);
 117 uint16_t tsocket_address_inet_port(const struct tsocket_address *addr);
 118 int tsocket_address_inet_set_port(struct tsocket_address *addr,
 119                                   uint16_t port);
 120
 121 int _tsocket_address_unix_from_path(TALLOC_CTX *mem_ctx,
 122                                     const char *path,
 123                                     struct tsocket_address **_addr,
 124                                     const char *location);
 125 #define tsocket_address_unix_from_path(mem_ctx, path, _addr) \
 126         _tsocket_address_unix_from_path(mem_ctx, path, _addr, \
 127                                         __location__)
 128 char *tsocket_address_unix_path(const struct tsocket_address *addr,
 129                                 TALLOC_CTX *mem_ctx);
 130
 131 int _tdgram_inet_udp_socket(const struct tsocket_address *local,
 132                             const struct tsocket_address *remote,
 133                             TALLOC_CTX *mem_ctx,
 134                             struct tdgram_context **dgram,
 135                             const char *location);
 136 #define tdgram_inet_udp_socket(local, remote, mem_ctx, dgram) \
 137         _tdgram_inet_udp_socket(local, remote, mem_ctx, dgram, __location__)
 138
 139 int _tdgram_unix_socket(const struct tsocket_address *local,
 140                         const struct tsocket_address *remote,
 141                         TALLOC_CTX *mem_ctx,
 142                         struct tdgram_context **dgram,
 143                         const char *location);
 144 #define tdgram_unix_socket(local, remote, mem_ctx, dgram) \
 145         _tdgram_unix_socket(local, remote, mem_ctx, dgram, __location__)
 146
 147 struct tevent_req * tstream_inet_tcp_connect_send(TALLOC_CTX *mem_ctx,
 148                                         struct tevent_context *ev,
 149                                         const struct tsocket_address *local,
 150                                         const struct tsocket_address *remote);
 151 int _tstream_inet_tcp_connect_recv(struct tevent_req *req,
 152                                    int *perrno,
 153                                    TALLOC_CTX *mem_ctx,
 154                                    struct tstream_context **stream,
 155                                    const char *location);
 156 #define tstream_inet_tcp_connect_recv(req, perrno, mem_ctx, stream) \
 157         _tstream_inet_tcp_connect_recv(req, perrno, mem_ctx, stream, \
 158                                        __location__)
 159
 160 struct tevent_req * tstream_unix_connect_send(TALLOC_CTX *mem_ctx,
 161                                         struct tevent_context *ev,
 162                                         const struct tsocket_address *local,
 163                                         const struct tsocket_address *remote);
 164 int _tstream_unix_connect_recv(struct tevent_req *req,
 165                                int *perrno,
 166                                TALLOC_CTX *mem_ctx,
 167                                struct tstream_context **stream,
 168                                const char *location);
 169 #define tstream_unix_connect_recv(req, perrno, mem_ctx, stream) \
 170         _tstream_unix_connect_recv(req, perrno, mem_ctx, stream, \
 171                                           __location__)
 172
 173 int _tstream_unix_socketpair(TALLOC_CTX *mem_ctx1,
 174                              struct tstream_context **_stream1,
 175                              TALLOC_CTX *mem_ctx2,
 176                              struct tstream_context **_stream2,
 177                              const char *location);
 178 #define tstream_unix_socketpair(mem_ctx1, stream1, mem_ctx2, stream2) \
 179         _tstream_unix_socketpair(mem_ctx1, stream1, mem_ctx2, stream2, \
 180                                  __location__)
 181
 182 int _tstream_bsd_existing_socket(TALLOC_CTX *mem_ctx,
 183                                  int fd,
 184                                  struct tstream_context **_stream,
 185                                  const char *location);
 186 #define tstream_bsd_existing_socket(mem_ctx, fd, stream) \
 187         _tstream_bsd_existing_socket(mem_ctx, fd, stream, \
 188                                      __location__)
 189
 190 /*
 191  * Queue and PDU helpers
 192  */
 193
 194 struct tevent_req *tdgram_sendto_queue_send(TALLOC_CTX *mem_ctx,
 195                                             struct tevent_context *ev,
 196                                             struct tdgram_context *dgram,
 197                                             struct tevent_queue *queue,
 198                                             const uint8_t *buf,
 199                                             size_t len,
 200                                             struct tsocket_address *dst);
 201 ssize_t tdgram_sendto_queue_recv(struct tevent_req *req, int *perrno);
 202
 203 typedef int (*tstream_readv_pdu_next_vector_t)(struct tstream_context *stream,
 204                                                void *private_data,
 205                                                TALLOC_CTX *mem_ctx,
 206                                                struct iovec **vector,
 207                                                size_t *count);
 208 struct tevent_req *tstream_readv_pdu_send(TALLOC_CTX *mem_ctx,
 209                                 struct tevent_context *ev,
 210                                 struct tstream_context *stream,
 211                                 tstream_readv_pdu_next_vector_t next_vector_fn,
 212                                 void *next_vector_private);
 213 int tstream_readv_pdu_recv(struct tevent_req *req, int *perrno);
 214
 215 struct tevent_req *tstream_readv_pdu_queue_send(TALLOC_CTX *mem_ctx,
 216                                 struct tevent_context *ev,
 217                                 struct tstream_context *stream,
 218                                 struct tevent_queue *queue,
 219                                 tstream_readv_pdu_next_vector_t next_vector_fn,
 220                                 void *next_vector_private);
 221 int tstream_readv_pdu_queue_recv(struct tevent_req *req, int *perrno);
 222
 223 struct tevent_req *tstream_writev_queue_send(TALLOC_CTX *mem_ctx,
 224                                              struct tevent_context *ev,
 225                                              struct tstream_context *stream,
 226                                              struct tevent_queue *queue,
 227                                              const struct iovec *vector,
 228                                              size_t count);
 229 int tstream_writev_queue_recv(struct tevent_req *req, int *perrno);
 230
 231 #endif /* _TSOCKET_H */
 232