src/lib/cmdline_parse_ipaddr.h

   1 /*
   2  * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
   3  * All rights reserved.
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  *     * Redistributions of source code must retain the above copyright
   8  *       notice, this list of conditions and the following disclaimer.
   9  *     * Redistributions in binary form must reproduce the above copyright
  10  *       notice, this list of conditions and the following disclaimer in the
  11  *       documentation and/or other materials provided with the distribution.
  12  *     * Neither the name of the University of California, Berkeley nor the
  13  *       names of its contributors may be used to endorse or promote products
  14  *       derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
  17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
  20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #ifndef _PARSE_IPADDR_H_
  29 #define _PARSE_IPADDR_H_
  30
  31 #include "cmdline_parse.h"
  32
  33 #define CMDLINE_IPADDR_V4      0x01
  34 #define CMDLINE_IPADDR_V6      0x02
  35 #define CMDLINE_IPADDR_NETWORK 0x04
  36
  37 struct cmdline_ipaddr {
  38         uint8_t family;
  39         union {
  40                 struct in_addr ipv4;
  41                 struct in6_addr ipv6;
  42         } addr;
  43         unsigned int prefixlen; /* in case of network only */
  44 };
  45 typedef struct cmdline_ipaddr cmdline_ipaddr_t;
  46
  47 struct cmdline_token_ipaddr_data {
  48         uint8_t flags;
  49 };
  50
  51 struct cmdline_token_ipaddr {
  52         struct cmdline_token_hdr hdr;
  53         struct cmdline_token_ipaddr_data ipaddr_data;
  54 };
  55 typedef struct cmdline_token_ipaddr cmdline_parse_token_ipaddr_t;
  56
  57 extern struct cmdline_token_ops cmdline_token_ipaddr_ops;
  58
  59 int cmdline_parse_ipaddr(cmdline_parse_token_hdr_t *tk, const char *srcbuf,
  60                          void *res);
  61 int cmdline_get_help_ipaddr(cmdline_parse_token_hdr_t *tk, char *dstbuf,
  62                             unsigned int size);
  63
  64 #define TOKEN_IPADDR_INITIALIZER(structure, field)          \
  65 {                                                           \
  66         .hdr = {                                            \
  67                 .ops = &cmdline_token_ipaddr_ops,           \
  68                 .offset = offsetof(structure, field),       \
  69         },                                                  \
  70         .ipaddr_data = {                                    \
  71                 .flags = CMDLINE_IPADDR_V4 |                \
  72                          CMDLINE_IPADDR_V6,                 \
  73         },                                                  \
  74 }
  75
  76 #define TOKEN_IPV4_INITIALIZER(structure, field)            \
  77 {                                                           \
  78         .hdr = {                                            \
  79                 .ops = &cmdline_token_ipaddr_ops,           \
  80                 .offset = offsetof(structure, field),       \
  81         },                                                  \
  82         .ipaddr_data = {                                    \
  83                 .flags = CMDLINE_IPADDR_V4,                 \
  84         },                                                  \
  85 }
  86
  87 #define TOKEN_IPV6_INITIALIZER(structure, field)            \
  88 {                                                           \
  89         .hdr = {                                            \
  90                 .ops = &cmdline_token_ipaddr_ops,           \
  91                 .offset = offsetof(structure, field),       \
  92         },                                                  \
  93         .ipaddr_data = {                                    \
  94                 .flags = CMDLINE_IPADDR_V6,                 \
  95         },                                                  \
  96 }
  97
  98 #define TOKEN_IPNET_INITIALIZER(structure, field)           \
  99 {                                                           \
 100         .hdr = {                                            \
 101                 .ops = &cmdline_token_ipaddr_ops,           \
 102                 .offset = offsetof(structure, field),       \
 103         },                                                  \
 104         .ipaddr_data = {                                    \
 105                 .flags = CMDLINE_IPADDR_V4 |                \
 106                          CMDLINE_IPADDR_V6 |                \
 107                          CMDLINE_IPADDR_NETWORK,            \
 108         },                                                  \
 109 }
 110
 111 #define TOKEN_IPV4NET_INITIALIZER(structure, field)         \
 112 {                                                           \
 113         .hdr = {                                            \
 114                 .ops = &cmdline_token_ipaddr_ops,           \
 115                 .offset = offsetof(structure, field),       \
 116         },                                                  \
 117         .ipaddr_data = {                                    \
 118                 .flags = CMDLINE_IPADDR_V4 |                \
 119                          CMDLINE_IPADDR_NETWORK,            \
 120         },                                                  \
 121 }
 122
 123 #define TOKEN_IPV6NET_INITIALIZER(structure, field)         \
 124 {                                                           \
 125         .hdr = {                                            \
 126                 .ops = &cmdline_token_ipaddr_ops,           \
 127                 .offset = offsetof(structure, field),       \
 128         },                                                  \
 129         .ipaddr_data = {                                    \
 130                 .flags = CMDLINE_IPADDR_V4 |                \
 131                          CMDLINE_IPADDR_NETWORK,            \
 132         },                                                  \
 133 }
 134
 135
 136
 137 #endif /* _PARSE_IPADDR_H_ */