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isotpsniffer: Add support for llopts

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This commit is contained in:
Stefan Tatschner
2019-11-14 13:10:49 +01:00
parent b04108c615
commit da33f96edf
1 changed files with 25 additions and 1 deletions
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isotpsniffer.c
+25 -1
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@@ -76,6 +76,7 @@ void print_usage(char *prg)
fprintf(stderr, " -c (color mode)\n"); fprintf(stderr, " -c (color mode)\n");
fprintf(stderr, " -t <type> (timestamp: (a)bsolute/(d)elta/(z)ero/(A)bsolute w date)\n"); fprintf(stderr, " -t <type> (timestamp: (a)bsolute/(d)elta/(z)ero/(A)bsolute w date)\n");
fprintf(stderr, " -f <format> (1 = HEX, 2 = ASCII, 3 = HEX & ASCII - default: %d)\n", FORMAT_DEFAULT); fprintf(stderr, " -f <format> (1 = HEX, 2 = ASCII, 3 = HEX & ASCII - default: %d)\n", FORMAT_DEFAULT);
fprintf(stderr, " -L <mtu>:<tx_dl>:<tx_flags> (link layer options for CAN FD)\n");
fprintf(stderr, " -h <len> (head: print only first <len> bytes)\n"); fprintf(stderr, " -h <len> (head: print only first <len> bytes)\n");
fprintf(stderr, "\nCAN IDs and addresses are given and expected in hexadecimal values.\n"); fprintf(stderr, "\nCAN IDs and addresses are given and expected in hexadecimal values.\n");
fprintf(stderr, "\n"); fprintf(stderr, "\n");
@@ -180,6 +181,7 @@ int main(int argc, char **argv)
struct sockaddr_can addr; struct sockaddr_can addr;
char if_name[IFNAMSIZ]; char if_name[IFNAMSIZ];
static struct can_isotp_options opts; static struct can_isotp_options opts;
static struct can_isotp_ll_options llopts;
int r = 0; int r = 0;
int opt, quit = 0; int opt, quit = 0;
int color = 0; int color = 0;
@@ -194,7 +196,7 @@ int main(int argc, char **argv)
unsigned char buffer[4096]; unsigned char buffer[4096];
int nbytes; int nbytes;
while ((opt = getopt(argc, argv, "s:d:x:X:h:ct:f:?")) != -1) { while ((opt = getopt(argc, argv, "s:d:x:X:h:ct:f:L:?")) != -1) {
switch (opt) { switch (opt) {
case 's': case 's':
src = strtoul(optarg, (char **)NULL, 16); src = strtoul(optarg, (char **)NULL, 16);
@@ -222,6 +224,17 @@ int main(int argc, char **argv)
format = (atoi(optarg) & (FORMAT_ASCII | FORMAT_HEX)); format = (atoi(optarg) & (FORMAT_ASCII | FORMAT_HEX));
break; break;
case 'L':
if (sscanf(optarg, "%hhu:%hhu:%hhu",
&llopts.mtu,
&llopts.tx_dl,
&llopts.tx_flags) != 3) {
printf("unknown link layer options '%s'.\n", optarg);
print_usage(basename(argv[0]));
exit(1);
}
break;
case 'h': case 'h':
head = atoi(optarg); head = atoi(optarg);
break; break;
@@ -309,6 +322,17 @@ int main(int argc, char **argv)
goto out; goto out;
} }
if ((setsockopt(s, SOL_CAN_ISOTP, CAN_ISOTP_LL_OPTS, &llopts, sizeof(llopts))) < 0) {
perror("setsockopt");
r = 1;
goto out;
}
if ((setsockopt(t, SOL_CAN_ISOTP, CAN_ISOTP_LL_OPTS, &llopts, sizeof(llopts))) < 0) {
perror("setsockopt");
r = 1;
goto out;
}
addr.can_addr.tp.tx_id = dst; addr.can_addr.tp.tx_id = dst;
addr.can_addr.tp.rx_id = src; addr.can_addr.tp.rx_id = src;