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isotpdump: add support for FF_DL escape sequence for 32 bit PDU length

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Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
This commit is contained in:
Oliver Hartkopp
2014-11-16 22:14:02 +01:00
parent 4ffb7fe5c7
commit 61a9b8d98e
1 changed files with 12 additions and 3 deletions
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isotpdump.c
+11 -2
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@@ -94,6 +94,7 @@ int main(int argc, char **argv)
int color = 0; int color = 0;
int timestamp = 0; int timestamp = 0;
int datidx = 0; int datidx = 0;
unsigned long fflen = 0;
struct ifreq ifr; struct ifreq ifr;
int ifindex; int ifindex;
struct timeval tv, last_tv; struct timeval tv, last_tv;
@@ -295,9 +296,17 @@ int main(int argc, char **argv)
break; break;
case 0x10: case 0x10:
printf("[FF] ln: %-4d data:", fflen = ((n_pci & 0x0F)<<8) + frame.data[ext+1];
((n_pci & 0x0F)<<8) + frame.data[ext+1] ); if (fflen)
datidx = ext+2; datidx = ext+2;
else {
fflen = (frame.data[ext+2]<<24) +
(frame.data[ext+3]<<16) +
(frame.data[ext+4]<<8) +
frame.data[ext+5];
datidx = ext+6;
}
printf("[FF] ln: %-4lu data:", fflen);
break; break;
case 0x20: case 0x20: