src/tests/ipv4_test.c

   1 /*
   2  * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 FILE_LICENCE ( GPL2_OR_LATER );
  21
  22 /** @file
  23  *
  24  * IPv4 tests
  25  *
  26  */
  27
  28 /* Forcibly enable assertions */
  29 #undef NDEBUG
  30
  31 #include <stdint.h>
  32 #include <string.h>
  33 #include <byteswap.h>
  34 #include <ipxe/in.h>
  35 #include <ipxe/test.h>
  36
  37 /** Define inline IPv4 address */
  38 #define IPV4(a,b,c,d) ( ( (a) << 24 ) | ( (b) << 16 ) | ( (c) << 8 ) | (d) )
  39
  40 /**
  41  * Report an inet_ntoa() test result
  42  *
  43  * @v addr              IPv4 address
  44  * @v text              Expected textual representation
  45  * @v file              Test code file
  46  * @v line              Test code line
  47  */
  48 static void inet_ntoa_okx ( uint32_t addr, const char *text, const char *file,
  49                             unsigned int line ) {
  50         struct in_addr in = { .s_addr = htonl ( addr ) };
  51         char *actual;
  52
  53         /* Format address */
  54         actual = inet_ntoa ( in );
  55         DBG ( "inet_ntoa ( %d.%d.%d.%d ) = %s\n",
  56               ( ( ntohl ( addr ) >> 24 ) & 0xff ),
  57               ( ( ntohl ( addr ) >> 16 ) & 0xff ),
  58               ( ( ntohl ( addr ) >> 8 ) & 0xff ),
  59               ( ( ntohl ( addr ) >> 0 ) & 0xff ), actual );
  60         okx ( strcmp ( actual, text ) == 0, file, line );
  61 }
  62 #define inet_ntoa_ok( addr, text ) \
  63         inet_ntoa_okx ( addr, text, __FILE__, __LINE__ )
  64
  65 /**
  66  * Report an inet_aton() test result
  67  *
  68  * @v text              Textual representation
  69  * @v addr              Expected IPv4 address
  70  * @v file              Test code file
  71  * @v line              Test code line
  72  */
  73 static void inet_aton_okx ( const char *text, uint32_t addr, const char *file,
  74                             unsigned int line ) {
  75         struct in_addr actual;
  76
  77         /* Parse address */
  78         okx ( inet_aton ( text, &actual ) != 0, file, line );
  79         DBG ( "inet_aton ( \"%s\" ) = %s\n", text, inet_ntoa ( actual ) );
  80         okx ( ntohl ( actual.s_addr ) == addr, file, line );
  81 };
  82 #define inet_aton_ok( text, addr ) \
  83         inet_aton_okx ( text, addr, __FILE__, __LINE__ )
  84
  85 /**
  86  * Report an inet_aton() failure test result
  87  *
  88  * @v text              Textual representation
  89  * @v file              Test code file
  90  * @v line              Test code line
  91  */
  92 static void inet_aton_fail_okx ( const char *text, const char *file,
  93                                  unsigned int line ) {
  94         struct in_addr actual;
  95
  96         /* Attempt to parse address */
  97         okx ( inet_aton ( text, &actual ) == 0, file, line );
  98 }
  99 #define inet_aton_fail_ok( text ) \
 100         inet_aton_fail_okx ( text, __FILE__, __LINE__ )
 101
 102 /**
 103  * Perform IPv4 self-tests
 104  *
 105  */
 106 static void ipv4_test_exec ( void ) {
 107
 108         /* Address testing macros */
 109         ok (   IN_CLASSA ( IPV4 ( 10, 0, 0, 1 ) ) );
 110         ok ( ! IN_CLASSB ( IPV4 ( 10, 0, 0, 1 ) ) );
 111         ok ( ! IN_CLASSC ( IPV4 ( 10, 0, 0, 1 ) ) );
 112         ok ( ! IN_CLASSA ( IPV4 ( 172, 16, 0, 1 ) ) );
 113         ok (   IN_CLASSB ( IPV4 ( 172, 16, 0, 1 ) ) );
 114         ok ( ! IN_CLASSC ( IPV4 ( 172, 16, 0, 1 ) ) );
 115         ok ( ! IN_CLASSA ( IPV4 ( 192, 168, 0, 1 ) ) );
 116         ok ( ! IN_CLASSB ( IPV4 ( 192, 168, 0, 1 ) ) );
 117         ok (   IN_CLASSC ( IPV4 ( 192, 168, 0, 1 ) ) );
 118         ok ( ! IN_MULTICAST ( IPV4 ( 127, 0, 0, 1 ) ) );
 119         ok ( ! IN_MULTICAST ( IPV4 ( 8, 8, 8, 8 ) ) );
 120         ok ( ! IN_MULTICAST ( IPV4 ( 0, 0, 0, 0 ) ) );
 121         ok ( ! IN_MULTICAST ( IPV4 ( 223, 0, 0, 1 ) ) );
 122         ok ( ! IN_MULTICAST ( IPV4 ( 240, 0, 0, 1 ) ) );
 123         ok (   IN_MULTICAST ( IPV4 ( 224, 0, 0, 1 ) ) );
 124         ok (   IN_MULTICAST ( IPV4 ( 231, 89, 0, 2 ) ) );
 125         ok (   IN_MULTICAST ( IPV4 ( 239, 6, 1, 17 ) ) );
 126
 127         /* inet_ntoa() tests */
 128         inet_ntoa_ok ( IPV4 ( 127, 0, 0, 1 ), "127.0.0.1" );
 129         inet_ntoa_ok ( IPV4 ( 0, 0, 0, 0 ), "0.0.0.0" );
 130         inet_ntoa_ok ( IPV4 ( 255, 255, 255, 255 ), "255.255.255.255" );
 131         inet_ntoa_ok ( IPV4 ( 212, 13, 204, 60 ), "212.13.204.60" );
 132
 133         /* inet_aton() tests */
 134         inet_aton_ok ( "212.13.204.60", IPV4 ( 212, 13, 204, 60 ) );
 135         inet_aton_ok ( "127.0.0.1", IPV4 ( 127, 0, 0, 1 ) );
 136
 137         /* inet_aton() failure tests */
 138         inet_aton_fail_ok ( "256.0.0.1" ); /* Byte out of range */
 139         inet_aton_fail_ok ( "212.13.204.60.1" ); /* Too long */
 140         inet_aton_fail_ok ( "127.0.0" ); /* Too short */
 141         inet_aton_fail_ok ( "1.2.3.a" ); /* Invalid characters */
 142         inet_aton_fail_ok ( "127.0..1" ); /* Missing bytes */
 143 }
 144
 145 /** IPv4 self-test */
 146 struct self_test ipv4_test __self_test = {
 147         .name = "ipv4",
 148         .exec = ipv4_test_exec,
 149 };