tests/in_cksum_test.c

   1 /* <rdar://problem/49479689> arm64 os_cpu_in_cksum_mbuf sometimes incorrect with unaligned input buffer */
   2
   3 #include <assert.h>
   4 #include <stdlib.h>
   5 #include <inttypes.h>
   6
   7 #include <darwintest.h>
   8
   9 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
  10
  11 extern uint32_t os_cpu_in_cksum(const void *, uint32_t, uint32_t);
  12
  13 /****************************************************************/
  14 static void
  15 log_hexdump(const void *inp, size_t len)
  16 {
  17         unsigned i, off = 0;
  18         char buf[9 + 16 * 3 + 1];
  19         for (i = 0; i < len; i++) {
  20                 if (i % 16 == 0) {
  21                         off = (unsigned)snprintf(buf, sizeof(buf), "%08x:", i);
  22                 }
  23                 off += (unsigned)snprintf(buf + off, sizeof(buf) - off, " %02x", (((const uint8_t *)inp)[i]) & 0xff);
  24                 if (i % 16 == 15) {
  25                         T_LOG("%s", buf);
  26                 }
  27         }
  28         if (len % 16) {
  29                 T_LOG("%s", buf);
  30         }
  31 }
  32
  33 /* I was going to use the one from rfc1701 section 4.1
  34  * but then I saw the errata.  Hopefully this is dumb but
  35  * correct, even though it is not particularly efficient.
  36  */
  37 static uint16_t
  38 dumb_in_cksum(const uint8_t *buf, size_t len)
  39 {
  40         uint32_t partial = 0;
  41         while (len > 1) {
  42                 uint16_t val = buf[1];
  43                 val <<= 8;
  44                 val |= buf[0];
  45                 len -= 2;
  46                 buf += 2;
  47                 partial += val;
  48                 while ((val = partial >> 16)) {
  49                         partial &= 0xffff;
  50                         partial += val;
  51                 }
  52         }
  53         if (len) {
  54                 uint16_t val = buf[0];
  55                 partial += val;
  56                 while ((val = partial >> 16)) {
  57                         partial &= 0xffff;
  58                         partial += val;
  59                 }
  60         }
  61         return ~partial & 0xffff;
  62 }
  63
  64 /* Calculate a checksum divided into partial checksums */
  65 static uint16_t
  66 split_in_cksum(const uint8_t *buf, int nsegs, const uint32_t *seglens, const uint8_t *aligns, uint8_t *tmpbuf)
  67 {
  68         uint32_t partial = 0;
  69
  70         for (int i = 0; i < nsegs; i++) {
  71                 /* Only the last segment can have an odd length */
  72                 assert((i + 1 == nsegs) || seglens[i] % 2 == 0);
  73
  74                 /* Copy a segment into the tmpbuf with the requested alignment */
  75                 memcpy(tmpbuf + aligns[i], buf, seglens[i]);
  76
  77                 partial = os_cpu_in_cksum(tmpbuf + aligns[i], seglens[i], partial);
  78                 buf += seglens[i];
  79         }
  80
  81         return ~partial & 0xffff;
  82 }
  83
  84 static void
  85 test_checksum(const uint8_t *data, uint32_t len)
  86 {
  87         uint16_t dsum = dumb_in_cksum(data, len);
  88
  89         const uint8_t MAXALIGN = 8;
  90
  91         uint8_t tmpbuf[len + MAXALIGN];
  92         uint32_t seglens[2];
  93         uint8_t aligns[2];
  94         for (uint16_t split = 0; split < len; split += 2) {
  95                 seglens[0] = split;
  96                 seglens[1] = len - split;
  97                 for (aligns[0] = 0; aligns[0] < MAXALIGN; aligns[0]++) {
  98                         for (aligns[1] = 0; aligns[1] < MAXALIGN; aligns[1]++) {
  99                                 uint16_t osum = split_in_cksum(data, 2, seglens, aligns, tmpbuf);
 100                                 if (osum != dsum) {
 101                                         /* hexdump packet and alignments for debugging */
 102                                         log_hexdump(data, len);
 103                                         T_LOG("len %d seg[0] %d seg[1] %d align[0] %d align[1] %d\n", len, seglens[0], seglens[1], aligns[0], aligns[1]);
 104                                 }
 105                                 T_QUIET; T_ASSERT_EQ(osum, dsum, "checksum mismatch got 0x%04x expecting 0x%04x", htons(osum), htons(dsum));
 106                         }
 107                 }
 108         }
 109         T_PASS("OK len %d", len);
 110 }
 111
 112 static void
 113 test_one_random_packet(uint32_t maxlen)
 114 {
 115         /* Pick a packet length */
 116         uint32_t len = arc4random_uniform(maxlen);
 117         uint8_t data[len];
 118         arc4random_buf(data, len);
 119         test_checksum(data, len);
 120 }
 121
 122 /*
 123  * This is the checksummed portion of the first packet in checksum_error.pcap
 124  * It is known to cause a problem at splits 44 and 46 with second alignment of 1 or 3
 125  */
 126 static uint8_t pkt49479689[] = {
 127 /*00000000*/ 0xc0, 0xa8, 0x01, 0x06, 0xc0, 0xa8, 0x01, 0x07, 0x00, 0x06, 0x05, 0xc8, 0xcb, 0xf1, 0xc0, 0x24,  // |...............$|
 128 /*00000010*/ 0x2d, 0x23, 0x48, 0xd6, 0x3b, 0x44, 0x96, 0x7f, 0x80, 0x10, 0x20, 0x86, 0x00, 0x00, 0x00, 0x00,  // |-#H.;D.... ..,..|
 129 /*00000020*/ 0x01, 0x01, 0x08, 0x0a, 0x0c, 0xc4, 0x69, 0x3a, 0x31, 0x63, 0xb3, 0x37, 0x55, 0xe1, 0x62, 0x48,  // |......i:1c.7U.bH|
 130 /*00000030*/ 0xa4, 0xff, 0xff, 0xa0, 0xc5, 0xd9, 0x5d, 0xd2, 0x4d, 0xe4, 0xca, 0xd7, 0x83, 0x27, 0xcc, 0x90,  // |......].M....'..|
 131 /*00000040*/ 0x02, 0x26, 0x63, 0xd3, 0x02, 0x3c, 0xf1, 0x20, 0x15, 0xa6, 0x8b, 0xff, 0x98, 0x8d, 0x57, 0x2a,  // |.&c..<. ......W*|
 132 /*00000050*/ 0x06, 0x4b, 0x06, 0x49, 0x5d, 0x8a, 0x28, 0x66, 0xe6, 0x57, 0x71, 0xd9, 0x27, 0xd1, 0xb9, 0xd6,  // |.K.I].(f.Wq.'...|
 133 /*00000060*/ 0x20, 0x48, 0x13, 0x2e, 0xbf, 0x30, 0x8c, 0xce, 0x49, 0x99, 0x2a, 0xb7, 0x94, 0xa4, 0x3a, 0x8e,  // | H...0..I.*...:.|
 134 /*00000070*/ 0x35, 0xcc, 0x48, 0xb2, 0x7f, 0xe1, 0xca, 0x2f, 0x08, 0x49, 0x7f, 0x35, 0x61, 0xcf, 0x59, 0xa2,  // |5.H..../.I.5a.Y.|
 135 /*00000080*/ 0x3a, 0x5e, 0x10, 0x5a, 0x0a, 0xd7, 0xa2, 0x38, 0x64, 0xe1, 0x7c, 0x5d, 0xbd, 0x29, 0x65, 0x5a,  // |:^.Z...8d.|].)eZ|
 136 /*00000090*/ 0xf2, 0x14, 0x30, 0x51, 0x9b, 0x56, 0xbb, 0xe2, 0x04, 0x48, 0x04, 0x23, 0x53, 0x30, 0x3a, 0x0a,  // |..0Q.V...H.#S0:.|
 137 /*000000a0*/ 0x48, 0x5a, 0xdd, 0xe4, 0xd7, 0x5e, 0x5b, 0x5d, 0x90, 0x89, 0x7d, 0xf0, 0xad, 0x24, 0x1a, 0xa8,  // |HZ...^[]..}..$..|
 138 /*000000b0*/ 0x81, 0xc1, 0x6b, 0x11, 0x97, 0x68, 0xc0, 0xbb, 0xe4, 0x5c, 0xba, 0x1a, 0xe8, 0x9c, 0xc9, 0x8b,  // |..k..h...\......|
 139 /*000000c0*/ 0xb8, 0x2b, 0x11, 0x85, 0x7f, 0xbf, 0x19, 0x81, 0xb0, 0xfc, 0xfd, 0x4a, 0xac, 0x7b, 0xd3, 0x60,  // |.+.........J.{.`|
 140 /*000000d0*/ 0x44, 0x1f, 0x5e, 0x8d, 0x05, 0x6e, 0xd7, 0xd1, 0xef, 0x11, 0x84, 0xd3, 0x0d, 0x63, 0xcf, 0x56,  // |D.^..n.......c.V|
 141 /*000000e0*/ 0xf9, 0x27, 0xc4, 0xd0, 0x39, 0x0e, 0xac, 0x7e, 0xba, 0xb3, 0xb8, 0x9c, 0x21, 0x21, 0xc8, 0xa0,  // |.'..9..~....!!..|
 142 /*000000f0*/ 0xbc, 0xd8, 0x82, 0x6f, 0x81, 0xa6, 0xc2, 0xf5, 0xe0, 0xdb, 0x41, 0xd0, 0xd4, 0x18, 0x2a, 0x5b,  // |...o......A...*[|
 143 /*00000100*/ 0x93, 0x3d, 0x5a, 0x08, 0xe2, 0xac, 0x8d, 0xd3, 0x7d, 0xcc, 0x49, 0x33, 0xc9, 0xb8, 0x9e, 0x12,  // |.=Z.....}.I3....|
 144 /*00000110*/ 0x86, 0x63, 0x38, 0x9c, 0xce, 0x4a, 0xb7, 0xcc, 0xe9, 0x4b, 0x5e, 0xb5, 0x24, 0x42, 0x47, 0x28,  // |.c8..J...K^.$BG(|
 145 /*00000120*/ 0x1c, 0x09, 0xe8, 0x84, 0xa6, 0xf0, 0x5f, 0x03, 0x94, 0x6f, 0x6a, 0x18, 0x60, 0xc3, 0x12, 0x58,  // |......_..oj.`..X|
 146 /*00000130*/ 0x6c, 0xbe, 0x13, 0x85, 0xa4, 0xdf, 0xe1, 0x8c, 0x3a, 0x04, 0xe9, 0x56, 0xa3, 0x09, 0x41, 0xf1,  // |l.......:..V..A.|
 147 /*00000140*/ 0x70, 0xf5, 0xc4, 0x27, 0x8e, 0x18, 0x09, 0x56, 0x5f, 0x82, 0x08, 0xec, 0x84, 0x55, 0x3b, 0x58,  // |p..'...V_....U;X|
 148 /*00000150*/ 0x84, 0x7b, 0xc8, 0x63, 0x70, 0x6a, 0x83, 0x04, 0xc8, 0xff, 0xe7, 0x6a, 0xbc, 0xee, 0xc0, 0xfe,  // |.{.cpj.....j....|
 149 /*00000160*/ 0xef, 0x60, 0xb7, 0x04, 0xb5, 0x57, 0x53, 0x5b, 0xeb, 0x4d, 0xec, 0x22, 0xe8, 0x59, 0x22, 0x64,  // |.`...WS[.M.".Y"d|
 150 /*00000170*/ 0x20, 0x5a, 0x61, 0x7d, 0x92, 0x02, 0x80, 0xd0, 0x85, 0x56, 0x98, 0x75, 0xbe, 0x35, 0xaf, 0xe4,  // | Za}.....V.u.5..|
 151 /*00000180*/ 0xc3, 0x06, 0xfa, 0xc2, 0x29, 0xce, 0x80, 0xe2, 0x68, 0xf3, 0xd8, 0x4b, 0x72, 0x46, 0x6e, 0xa3,  // |....)...h..KrFn.|
 152 /*00000190*/ 0x88, 0x57, 0xfb, 0x08, 0xec, 0x60, 0x2f, 0x3c, 0xa4, 0xaf, 0x08, 0x64, 0x45, 0x16, 0xba, 0x7b,  // |.W...`/<...dE..{|
 153 /*000001a0*/ 0xad, 0x24, 0x7a, 0x1f, 0x53, 0x46, 0x0c, 0xe6, 0xe9, 0x99, 0xd7, 0x2b, 0x9d, 0x62, 0xd9, 0x4a,  // |.$z.SF.....+.b.J|
 154 /*000001b0*/ 0x80, 0x2a, 0x43, 0xc2, 0x78, 0xa6, 0x6b, 0x38, 0x8e, 0xc8, 0x40, 0x6b, 0x03, 0xe2, 0x47, 0x04,  // |.*C.x.k8..@k..G.|
 155 /*000001c0*/ 0xda, 0x08, 0x72, 0xf5, 0xbc, 0x66, 0x3f, 0x33, 0x4d, 0xb6, 0x26, 0xd0, 0x66, 0x8c, 0xa0, 0x70,  // |..r..f?3M.&.f..p|
 156 /*000001d0*/ 0x25, 0xbc, 0x68, 0xda, 0x02, 0x79, 0x89, 0xed, 0x0c, 0xfc, 0xe7, 0x3d, 0x15, 0xcf, 0x5e, 0xc9,  // |%.h..y.....=..^.|
 157 /*000001e0*/ 0x63, 0xe0, 0x64, 0xb1, 0xfb, 0x28, 0xf7, 0x29, 0x52, 0xcf, 0x7a, 0xe3, 0x6d, 0x46, 0xc5, 0x1a,  // |c.d..(.)R.z.mF..|
 158 /*000001f0*/ 0x71, 0x24, 0x4e, 0x12, 0x56, 0x86, 0xc7, 0xf5, 0x98, 0x3e, 0xa9, 0xbc, 0x5d, 0xe9, 0x22, 0x88,  // |q$N.V....>..].".|
 159 /*00000200*/ 0x9b, 0x61, 0xc4, 0xa2, 0xcc, 0x27, 0x54, 0x07, 0x88, 0xeb, 0xe1, 0x4e, 0xaa, 0x0a, 0xd6, 0x94,  // |.a...'T....N....|
 160 /*00000210*/ 0x83, 0x32, 0xf8, 0x1d, 0xff, 0x67, 0xe5, 0x63, 0x78, 0x04, 0x11, 0x24, 0x25, 0xd7, 0x22, 0x54,  // |.2...g.cx..$%."T|
 161 /*00000220*/ 0x73, 0x87, 0xc9, 0x53, 0x72, 0x51, 0xda, 0x24, 0x33, 0xd7, 0x5c, 0x40, 0x86, 0x77, 0xf9, 0xc2,  // |s..SrQ.$3.\@.w..|
 162 /*00000230*/ 0xeb, 0x7d, 0x4c, 0x72, 0xeb, 0xc9, 0x8b, 0xcc, 0x79, 0xcd, 0x4a, 0x5a, 0x9e, 0xe2, 0x83, 0x20,  // |.}Lr....y.JZ... |
 163 /*00000240*/ 0x19, 0x5b, 0x4b, 0xe6, 0x5c, 0xe2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x7b, 0x80, 0x69,  // |.[K.\........{.i|
 164 /*00000250*/ 0x29, 0x53, 0x97, 0xc2, 0xc9, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x67, 0x75, 0x81, 0x80, 0x12, 0x6e,  // |)S...L....gu...n|
 165 /*00000260*/ 0x50, 0x66, 0xe9, 0x0a, 0x28, 0x3b, 0x1a, 0xf1, 0xcb, 0x46, 0x72, 0xf7, 0xe9, 0x9f, 0x84, 0x29,  // |Pf..(;...Fr....)|
 166 /*00000270*/ 0xb9, 0x95, 0xf9, 0x6d, 0x5d, 0x04, 0x51, 0x7f, 0x0e, 0xf0, 0xe4, 0x3d, 0x4b, 0xd2, 0xb2, 0xb5,  // |...m].Q....=K...|
 167 /*00000280*/ 0x51, 0xf0, 0x31, 0x8e, 0x55, 0x18, 0x54, 0xf7, 0xee, 0x03, 0x37, 0x07, 0x33, 0x43, 0x8b, 0x5a,  // |Q.1.U.T...7.3C.Z|
 168 /*00000290*/ 0x1d, 0x16, 0xe8, 0xc4, 0x8b, 0x2c, 0x8a, 0x01, 0x5c, 0x45, 0xc6, 0xd1, 0x9d, 0xa9, 0x0a, 0xe2,  // |.....,..\E......|
 169 /*000002a0*/ 0x15, 0x4b, 0x8b, 0x00, 0x84, 0xbf, 0x3d, 0xad, 0xed, 0x86, 0x8e, 0x5c, 0x76, 0xe9, 0xbe, 0x4b,  // |.K....=....\v..K|
 170 /*000002b0*/ 0xd5, 0xb5, 0xb0, 0x08, 0x7f, 0xd7, 0x71, 0x57, 0x44, 0x67, 0x31, 0x8b, 0x43, 0x7d, 0xf8, 0x5a,  // |......qWDg1.C}.Z|
 171 /*000002c0*/ 0xcd, 0xe6, 0x4c, 0xec, 0x89, 0xa5, 0xd1, 0x03, 0x86, 0xfd, 0x01, 0x7d, 0x22, 0x32, 0xf0, 0xc3,  // |..L........}"2..|
 172 /*000002d0*/ 0x23, 0x99, 0x8e, 0x69, 0x14, 0x54, 0x54, 0x03, 0xec, 0x27, 0x6a, 0x7d, 0x13, 0xc7, 0xe2, 0x39,  // |#..i.TT..'j}...9|
 173 /*000002e0*/ 0x2b, 0xc0, 0x1a, 0x70, 0x82, 0xe9, 0x80, 0x73, 0xf4, 0x27, 0x26, 0xca, 0x5c, 0xf6, 0x7f, 0x46,  // |+..p...s.'&.\..F|
 174 /*000002f0*/ 0xf7, 0x00, 0x58, 0x3c, 0x3a, 0xcc, 0x1e, 0x9b, 0xd2, 0x22, 0x78, 0x04, 0x23, 0xc6, 0xfb, 0xdf,  // |..X<:...."x.#...|
 175 /*00000300*/ 0x8b, 0x36, 0xd6, 0xfa, 0xd8, 0x53, 0xbd, 0x0e, 0xaf, 0x1a, 0x04, 0xd1, 0x81, 0xd6, 0x1f, 0x1a,  // |.6...S..........|
 176 /*00000310*/ 0x74, 0x4d, 0xcf, 0xf6, 0xcf, 0x61, 0x6c, 0xd9, 0x7f, 0x1e, 0xb3, 0x1c, 0x2e, 0x74, 0x1a, 0x37,  // |tM...al......t.7|
 177 /*00000320*/ 0xfa, 0x2a, 0x24, 0x6d, 0xc2, 0x6d, 0x54, 0xfb, 0xd7, 0x9b, 0x34, 0x87, 0xeb, 0xac, 0x38, 0xc7,  // |.*$m.mT...4...8.|
 178 /*00000330*/ 0xe3, 0xc9, 0x6a, 0x98, 0x04, 0x2b, 0x33, 0x2d, 0x87, 0xf4, 0x25, 0xd6, 0x64, 0x14, 0xe8, 0xd0,  // |..j..+3-..%.d...|
 179 /*00000340*/ 0x84, 0x18, 0xc0, 0x39, 0x4d, 0xb5, 0xe5, 0xe2, 0xdb, 0x74, 0x59, 0x52, 0xad, 0x91, 0x1a, 0x55,  // |...9M....tYR...U|
 180 /*00000350*/ 0xae, 0xa3, 0xe1, 0x73, 0x4e, 0x76, 0x14, 0x94, 0xab, 0xec, 0x69, 0xb7, 0x0c, 0xa3, 0x71, 0x14,  // |...sNv....i...q.|
 181 /*00000360*/ 0x04, 0xbf, 0xf9, 0x75, 0xca, 0x2b, 0x8a, 0xa4, 0x5b, 0xe6, 0xe8, 0x61, 0x8d, 0xad, 0x1a, 0x62,  // |...u.+..[..a...b|
 182 /*00000370*/ 0x97, 0xaa, 0xfa, 0x3f, 0x88, 0x75, 0xcd, 0xe7, 0x29, 0x66, 0xbd, 0xcf, 0x50, 0xfd, 0x10, 0x09,  // |...?.u..)f..P...|
 183 /*00000380*/ 0x45, 0x2e, 0x97, 0xd5, 0x7c, 0xb4, 0x12, 0x7a, 0x5f, 0xfc, 0x1c, 0x74, 0x02, 0xf0, 0xa7, 0x98,  // |E...|..z_..t....|
 184 /*00000390*/ 0xd2, 0x03, 0x86, 0x19, 0x08, 0x54, 0x3d, 0x4d, 0x88, 0x13, 0x88, 0x87, 0x26, 0x61, 0x3e, 0x88,  // |.....T=M....&a>.|
 185 /*000003a0*/ 0xf8, 0x18, 0xcc, 0xac, 0x6f, 0xec, 0x12, 0x57, 0xfe, 0x80, 0xa3, 0xbe, 0x04, 0x39, 0x52, 0xe0,  // |....o..W.....9R.|
 186 /*000003b0*/ 0xc3, 0xfa, 0xed, 0x4f, 0xf5, 0x07, 0x59, 0x7e, 0xfa, 0xb9, 0x35, 0x36, 0xf2, 0x55, 0x23, 0xab,  // |...O..Y~..56.U#.|
 187 /*000003c0*/ 0x15, 0x65, 0x57, 0xb2, 0xce, 0xdb, 0x63, 0xe0, 0x1f, 0x1f, 0xa5, 0xfa, 0x70, 0x2e, 0x53, 0x76,  // |.eW...c.....p.Sv|
 188 /*000003d0*/ 0x20, 0x5b, 0x54, 0xc2, 0x0f, 0xe9, 0xca, 0x2c, 0x82, 0xf1, 0x30, 0x61, 0xbb, 0x99, 0x1e, 0x2a,  // | [T....,..0a...*|
 189 /*000003e0*/ 0xa2, 0x71, 0x91, 0x39, 0x07, 0xda, 0xcd, 0x50, 0xbb, 0x73, 0x5b, 0xa4, 0x05, 0x26, 0xee, 0x9f,  // |.q.9...P.s[..&..|
 190 /*000003f0*/ 0x5e, 0x88, 0x72, 0x92, 0xc9, 0x60, 0x2b, 0xd7, 0x6a, 0x91, 0x40, 0x52, 0x6b, 0xd1, 0xab, 0x00,  // |^.r..`+.j.@Rk...|
 191 /*00000400*/ 0xcc, 0x60, 0x53, 0x9b, 0x36, 0x40, 0x3b, 0x60, 0x18, 0x7f, 0x5f, 0xc2, 0x8c, 0x44, 0x08, 0xae,  // |.`S.6@;`.._..D..|
 192 /*00000410*/ 0x95, 0xae, 0x8c, 0xd7, 0x8d, 0x68, 0x4a, 0x42, 0x64, 0x1d, 0xdf, 0xdc, 0x17, 0x1a, 0x28, 0xe0,  // |.....hJBd.....(.|
 193 /*00000420*/ 0x55, 0x35, 0x00, 0x65, 0xe4, 0xd4, 0xd7, 0x3e, 0x1c, 0x6a, 0xa1, 0xbf, 0xba, 0xd8, 0x29, 0xce,  // |U5.e...>.j....).|
 194 /*00000430*/ 0xa6, 0x1f, 0xf9, 0x06, 0xff, 0x70, 0x43, 0xc8, 0xa0, 0x49, 0x03, 0xcd, 0x19, 0xf2, 0x16, 0x01,  // |.....pC..I......|
 195 /*00000440*/ 0x46, 0xf0, 0x29, 0xdb, 0xc2, 0x85, 0x89, 0x20, 0x37, 0x91, 0xd3, 0x74, 0x1c, 0x38, 0x08, 0xb3,  // |F.).... 7..t.8..|
 196 /*00000450*/ 0xd5, 0xa3, 0x4c, 0x52, 0x6e, 0xb3, 0x24, 0xc0, 0xbc, 0xd6, 0xc6, 0x64, 0x0b, 0x40, 0x44, 0xc4,  // |..LRn.$....d.@D.|
 197 /*00000460*/ 0xb9, 0x11, 0x10, 0x2a, 0xcd, 0x43, 0x99, 0x47, 0xe9, 0xfb, 0xf0, 0xe0, 0x56, 0x13, 0x40, 0x41,  // |...*.C.G....V.@A|
 198 /*00000470*/ 0x8a, 0x41, 0xcc, 0x92, 0x8d, 0xd5, 0xb9, 0x47, 0x05, 0xc7, 0x72, 0x76, 0x02, 0x09, 0x05, 0xd9,  // |.A.....G..rv....|
 199 /*00000480*/ 0x12, 0xb6, 0xa8, 0x0a, 0x86, 0x28, 0x5c, 0x41, 0x7e, 0xf1, 0xbc, 0xa9, 0x93, 0xae, 0xdf, 0x0b,  // |.....(\A~.......|
 200 /*00000490*/ 0xa1, 0xfc, 0x47, 0xb5, 0xde, 0x1c, 0x25, 0xe9, 0x8b, 0xb2, 0x03, 0x3a, 0xa7, 0x36, 0x4e, 0xcb,  // |..G...%....:.6N.|
 201 /*000004a0*/ 0xfa, 0xcd, 0xe6, 0x4f, 0x67, 0x3f, 0xe2, 0xa3, 0x3d, 0xdb, 0x61, 0x0d, 0x99, 0x05, 0x15, 0x96,  // |...Og?..=.a.....|
 202 /*000004b0*/ 0x14, 0x4e, 0x89, 0xf7, 0x8b, 0xdd, 0x84, 0x48, 0x35, 0xa8, 0x5c, 0x73, 0x67, 0x5d, 0x55, 0x5d,  // |.N.....H5.\sg]U]|
 203 /*000004c0*/ 0xe2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x82, 0x80, 0x69, 0x29, 0x54, 0x97, 0xc2, 0xcd,  // |..........i)T...|
 204 /*000004d0*/ 0x4c, 0x00, 0x00, 0x00, 0x00, 0x44, 0x07, 0x64, 0xa1, 0x66, 0xe3, 0x3c, 0x6e, 0x51, 0x96, 0x6a,  // |L....D.d.f.<nQ.j|
 205 /*000004e0*/ 0x06, 0x8c, 0x08, 0x92, 0x24, 0x03, 0xe1, 0xc2, 0xce, 0x80, 0x56, 0x75, 0x78, 0xd3, 0xc8, 0x1d,  // |....$.....Vux...|
 206 /*000004f0*/ 0x52, 0xc6, 0x32, 0xbf, 0x89, 0x91, 0x1a, 0x81, 0x9f, 0x11, 0x69, 0xd6, 0x9b, 0x27, 0x20, 0x19,  // |R.2.......i..' .|
 207 /*00000500*/ 0x59, 0x12, 0x2d, 0x85, 0x7e, 0x3a, 0xed, 0xa9, 0xd7, 0x92, 0xa4, 0x2d, 0xce, 0x2f, 0xf0, 0xd4,  // |Y.-.~:.....-./..|
 208 /*00000510*/ 0x0e, 0xec, 0xe4, 0xd8, 0x0c, 0xaf, 0x1c, 0x28, 0xe8, 0x47, 0xef, 0x04, 0x61, 0x2a, 0x38, 0x94,  // |.......(.G..a*8.|
 209 /*00000520*/ 0x40, 0x2f, 0x92, 0x3e, 0x8a, 0xcd, 0x24, 0xfc, 0xba, 0xa6, 0x68, 0xa7, 0x2c, 0xbb, 0xc1, 0x67,  // |@/.>..$...h.,..g|
 210 /*00000530*/ 0x5f, 0x0b, 0x85, 0x75, 0x70, 0xa5, 0x03, 0x0e, 0x25, 0xe2, 0x09, 0x34, 0x78, 0x66, 0x6f, 0xe0,  // |_..up...%..4xfo.|
 211 /*00000540*/ 0xf6, 0xac, 0xaf, 0xc6, 0x4a, 0xbc, 0xda, 0xc5, 0x06, 0x9e, 0x53, 0xe8, 0x75, 0x0b, 0x50, 0xde,  // |....J.....S.u.P.|
 212 /*00000550*/ 0xf7, 0xc0, 0x7f, 0x78, 0x97, 0x13, 0x22, 0x76, 0x18, 0x88, 0xf9, 0x99, 0xa1, 0x05, 0x42, 0xee,  // |...x.."v......B.|
 213 /*00000560*/ 0x40, 0xf0, 0xb7, 0x00, 0x0e, 0xf5, 0xac, 0x7c, 0xe5, 0x8b, 0x1f, 0x05, 0xe3, 0xd1, 0x9d, 0x6b,  // |@......|.......k|
 214 /*00000570*/ 0xd4, 0x9c, 0x3d, 0x14, 0x08, 0x21, 0xce, 0x72, 0x8f, 0x91, 0x9c, 0xba, 0xdd, 0x46, 0xcd, 0xef,  // |..=..!.r.....F..|
 215 /*00000580*/ 0x6d, 0x7b, 0x0d, 0x7d, 0x59, 0x91, 0x05, 0xc2, 0xde, 0x6c, 0x8a, 0x65, 0xd0, 0x97, 0xb1, 0x93,  // |m{.}Y....l.e....|
 216 /*00000590*/ 0x9f, 0x51, 0xec, 0x79, 0x30, 0x44, 0xbd, 0xe5, 0xdf, 0x94, 0xed, 0xad, 0x18, 0xd7, 0x24, 0x89,  // |.Q.y0D........$.|
 217 /*000005a0*/ 0x36, 0x65, 0xc5, 0x88, 0xc0, 0x9a, 0xb7, 0xaa, 0x58, 0x60, 0xfe, 0x6c, 0xe8, 0xf3, 0x39, 0x6b,  // |6e......X`.l..9k|
 218 /*000005b0*/ 0x45, 0xe6, 0x34, 0xbc, 0x61, 0x68, 0xa2, 0x70, 0x16, 0x49, 0x8b, 0x7d, 0x78, 0x09, 0x99, 0x21,  // |E.4.ah.p.I.}x..!|
 219 /*000005c0*/ 0x5a, 0xea, 0xfd, 0xbc, 0x69, 0x23, 0xd5, 0x15, 0xd1, 0x5c, 0x32, 0x8b, 0xc0, 0x7b, 0xb2, 0x1e,  // |Z...i#...\2..{..|
 220 /*000005d0*/ 0x56, 0xf1, 0x6b, 0xd0,                                                                          // |V.k.|
 221 };
 222
 223 T_DECL(in_cksum_49479689a, "tests os_cpu_in_cksum with known problem packet in various random segmentation and memory alignment")
 224 {
 225         uint16_t dsum = dumb_in_cksum(pkt49479689, sizeof(pkt49479689));
 226         T_ASSERT_EQ(ntohs(dsum), (uint16_t)0xa32b, "verifying dumb chksum");
 227         test_checksum(pkt49479689, sizeof(pkt49479689));
 228 }
 229
 230 T_DECL(in_cksum_49479689b, "tests os_cpu_in_cksum with many random packets in various random segmentation and memory alignment")
 231 {
 232         for (int i = 0; i < 100; i++) {
 233                 test_one_random_packet(4096);
 234         }
 235 }