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can-utils
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Merge patch series "can-utils-dev: a set of update and cleanup patches" 

Vincent Mailhol <mailhol.vincent@wanadoo.fr> says:

This series contain cleanup patches and update of header files. There
is no real relation between each patch (aside of 2/6 and 3/6 which
form a pair) so I will end the cover letter here and let you refer to
the short description.

* Changelog *

v2 -> v3:

  * reorder the patches so that related changes are next to each
    other (especially patch 2/6 and 3/6).

  * patch 2/6: new patch to update include/linux/can/error.h with the
    latest hearder from Linux 6.0.0.

  * patch 3/6: do not use an #ifdef anymore and make sure that the
    code still work if run on old kernel version lower than 6.0.0.

  * patch 6/6: rewrite commit description to point out that there is a
    local copy of the linux headers under include/linux/.

v1 -> v2:

  * patch 2/5: add a note in commit message to explain that slcanpty.c
    debug is deactivated by default.

  * patch 2/5: make the compiler check the pr_debug() syntax even if
    debug is off.

  * reorder the patches so that the lib.c and the candump.c patches
    are next to each other in the series.

Link: https://lore.kernel.org/all/20221114163848.3398-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
pull/387/head
Marc Kleine-Budde 2022-11-15 10:14:47 +01:00
parent 71a0156bd5 4764212483
commit 9177294093
10 changed files with 69 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
CMakeLists.txt
View File

@ -33,6 +33,7 @@ set(PROGRAMS_CANLIB
cansequence
log2asc
log2long
slcanpty
)
set(PROGRAMS_J1939
@ -58,7 +59,6 @@ set(PROGRAMS
isotptun
slcan_attach
slcand
slcanpty
)
add_executable(can-calc-bit-timing

3
Makefile
View File

@ -46,6 +46,7 @@ MAKEFLAGS := -k
CFLAGS := -O2 -Wall -Wno-parentheses
CPPFLAGS += \
-I. \
-Iinclude \
-DAF_CAN=PF_CAN \
-DPF_CAN=29 \
@ -119,6 +120,7 @@ canplayer.o: lib.h
cansend.o: lib.h
log2asc.o: lib.h
log2long.o: lib.h
slcanpty.o: lib.h
j1939acd.o: libj1939.h
j1939cat.o: libj1939.h
j1939spy.o: libj1939.h
@ -135,6 +137,7 @@ cansend: cansend.o lib.o
cansequence: cansequence.o lib.o
log2asc: log2asc.o lib.o
log2long: log2long.o lib.o
slcanpty: slcanpty.o lib.o
j1939acd: j1939acd.o libj1939.o
j1939cat: j1939cat.o libj1939.o
j1939spy: j1939spy.o libj1939.o

9
canbusload.c
View File

@ -61,6 +61,7 @@
#include <linux/can.h>
#include <linux/can/raw.h>
#include "lib.h"
#include "terminal.h"
#include "canframelen.h"
@ -310,9 +311,7 @@ int main(int argc, char **argv)
return 1;
}
#ifdef DEBUG
printf("open %d '%s'.\n", i, ptr);
#endif
pr_debug("open %d '%s'.\n", i, ptr);
s[i] = socket(PF_CAN, SOCK_RAW, CAN_RAW);
if (s[i] < 0) {
@ -358,10 +357,8 @@ int main(int argc, char **argv)
if (nbytes > max_bitrate_len)
max_bitrate_len = nbytes; /* for nice printing */
pr_debug("using interface name '%s'.\n", ifr.ifr_name);
#ifdef DEBUG
printf("using interface name '%s'.\n", ifr.ifr_name);
#endif
/* try to switch the socket into CAN FD mode */
const int canfd_on = 1;
setsockopt(s[i], SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on));

58
candump.c
View File

@ -63,6 +63,7 @@
#include <linux/can.h>
#include <linux/can/raw.h>
#include <linux/net_tstamp.h>
#include "terminal.h"
#include "lib.h"
@ -72,10 +73,6 @@
#define SO_TIMESTAMPING 37
#endif
/* from #include <linux/net_tstamp.h> - since Linux 2.6.30 */
#define SOF_TIMESTAMPING_SOFTWARE (1 << 4)
#define SOF_TIMESTAMPING_RX_SOFTWARE (1 << 3)
#define SOF_TIMESTAMPING_RAW_HARDWARE (1 << 6)
#define TIMESTAMPSZ 50 /* string 'absolute with date' requires max 49 bytes */
#define MAXSOCK 16 /* max. number of CAN interfaces given on the cmdline */
@ -108,6 +105,7 @@ struct if_info { /* bundled information per open socket */
};
static struct if_info sock_info[MAXSOCK];
static char *progname;
static char devname[MAXIFNAMES][IFNAMSIZ+1];
static int dindex[MAXIFNAMES];
static int max_devname_len; /* to prevent frazzled device name output */
@ -121,11 +119,11 @@ extern int optind, opterr, optopt;
static volatile int running = 1;
static void print_usage(char *prg)
static void print_usage(void)
{
fprintf(stderr, "%s - dump CAN bus traffic.\n", prg);
fprintf(stderr, "\nUsage: %s [options] <CAN interface>+\n", prg);
fprintf(stderr, " (use CTRL-C to terminate %s)\n\n", prg);
fprintf(stderr, "%s - dump CAN bus traffic.\n", progname);
fprintf(stderr, "\nUsage: %s [options] <CAN interface>+\n", progname);
fprintf(stderr, " (use CTRL-C to terminate %s)\n\n", progname);
fprintf(stderr, "Options:\n");
fprintf(stderr, " -t <type> (timestamp: (a)bsolute/(d)elta/(z)ero/(A)bsolute w date)\n");
fprintf(stderr, " -H (read hardware timestamps instead of system timestamps)\n");
@ -159,12 +157,12 @@ static void print_usage(char *prg)
fprintf(stderr, "Without any given filter all data frames are received ('0:0' default filter).\n");
fprintf(stderr, "\nUse interface name '%s' to receive from all CAN interfaces.\n", ANYDEV);
fprintf(stderr, "\nExamples:\n");
fprintf(stderr, "%s -c -c -ta can0,123:7FF,400:700,#000000FF can2,400~7F0 can3 can8\n\n", prg);
fprintf(stderr, "%s -l any,0~0,#FFFFFFFF\n (log only error frames but no(!) data frames)\n", prg);
fprintf(stderr, "%s -l any,0:0,#FFFFFFFF\n (log error frames and also all data frames)\n", prg);
fprintf(stderr, "%s vcan2,12345678:DFFFFFFF\n (match only for extended CAN ID 12345678)\n", prg);
fprintf(stderr, "%s vcan2,123:7FF\n (matches CAN ID 123 - including EFF and RTR frames)\n", prg);
fprintf(stderr, "%s vcan2,123:C00007FF\n (matches CAN ID 123 - only SFF and non-RTR frames)\n", prg);
fprintf(stderr, "%s -c -c -ta can0,123:7FF,400:700,#000000FF can2,400~7F0 can3 can8\n\n", progname);
fprintf(stderr, "%s -l any,0~0,#FFFFFFFF\n (log only error frames but no(!) data frames)\n", progname);
fprintf(stderr, "%s -l any,0:0,#FFFFFFFF\n (log error frames and also all data frames)\n", progname);
fprintf(stderr, "%s vcan2,12345678:DFFFFFFF\n (match only for extended CAN ID 12345678)\n", progname);
fprintf(stderr, "%s vcan2,123:7FF\n (matches CAN ID 123 - including EFF and RTR frames)\n", progname);
fprintf(stderr, "%s vcan2,123:C00007FF\n (matches CAN ID 123 - only SFF and non-RTR frames)\n", progname);
fprintf(stderr, "\n");
}
@ -216,9 +214,7 @@ static int idx2dindex(int ifidx, int socket)
strcpy(devname[i], ifr.ifr_name);
#ifdef DEBUG
printf("new index %d (%s)\n", i, devname[i]);
#endif
pr_debug("new index %d (%s)\n", i, devname[i]);
return i;
}
@ -327,6 +323,8 @@ int main(int argc, char **argv)
last_tv.tv_sec = 0;
last_tv.tv_usec = 0;
progname = basename(argv[0]);
while ((opt = getopt(argc, argv, "t:HciaSs:lDdxLf:n:r:he8T:?")) != -1) {
switch (opt) {
case 't':
@ -335,7 +333,7 @@ int main(int argc, char **argv)
if ((timestamp != 'a') && (timestamp != 'A') &&
(timestamp != 'd') && (timestamp != 'z')) {
fprintf(stderr, "%s: unknown timestamp mode '%c' - ignored\n",
basename(argv[0]), optarg[0]);
progname, optarg[0]);
timestamp = 0;
}
if ((logtimestamp != 'a') && (logtimestamp != 'z')) {
@ -374,7 +372,7 @@ int main(int argc, char **argv)
case 's':
silent = atoi(optarg);
if (silent > SILENT_ON) {
print_usage(basename(argv[0]));
print_usage();
exit(1);
}
break;
@ -407,7 +405,7 @@ int main(int argc, char **argv)
case 'n':
count = atoi(optarg);
if (count < 1) {
print_usage(basename(argv[0]));
print_usage();
exit(1);
}
break;
@ -415,7 +413,7 @@ int main(int argc, char **argv)
case 'r':
rcvbuf_size = atoi(optarg);
if (rcvbuf_size < 1) {
print_usage(basename(argv[0]));
print_usage();
exit(1);
}
break;
@ -424,19 +422,19 @@ int main(int argc, char **argv)
errno = 0;
timeout_ms = strtol(optarg, NULL, 0);
if (errno != 0) {
print_usage(basename(argv[0]));
print_usage();
exit(1);
}
break;
default:
print_usage(basename(argv[0]));
print_usage();
exit(1);
break;
}
}
if (optind == argc) {
print_usage(basename(argv[0]));
print_usage();
exit(0);
}
@ -477,9 +475,7 @@ int main(int argc, char **argv)
ptr = argv[optind+i];
nptr = strchr(ptr, ',');
#ifdef DEBUG
printf("open %d '%s'.\n", i, ptr);
#endif
pr_debug("open %d '%s'.\n", i, ptr);
obj->s = socket(PF_CAN, SOCK_RAW, CAN_RAW);
if (obj->s < 0) {
@ -513,9 +509,7 @@ int main(int argc, char **argv)
memset(&ifr.ifr_name, 0, sizeof(ifr.ifr_name));
strncpy(ifr.ifr_name, ptr, nbytes);
#ifdef DEBUG
printf("using interface name '%s'.\n", ifr.ifr_name);
#endif
pr_debug("using interface name '%s'.\n", ifr.ifr_name);
if (strcmp(ANYDEV, ifr.ifr_name) != 0) {
if (ioctl(obj->s, SIOCGIFINDEX, &ifr) < 0) {
@ -605,9 +599,7 @@ int main(int argc, char **argv)
/* try SO_RCVBUFFORCE first, if we run with CAP_NET_ADMIN */
if (setsockopt(obj->s, SOL_SOCKET, SO_RCVBUFFORCE,
&rcvbuf_size, sizeof(rcvbuf_size)) < 0) {
#ifdef DEBUG
printf("SO_RCVBUFFORCE failed so try SO_RCVBUF ...\n");
#endif
pr_debug("SO_RCVBUFFORCE failed so try SO_RCVBUF ...\n");
if (setsockopt(obj->s, SOL_SOCKET, SO_RCVBUF,
&rcvbuf_size, sizeof(rcvbuf_size)) < 0) {
perror("setsockopt SO_RCVBUF");

8
canlogserver.c
View File

@ -145,9 +145,7 @@ int idx2dindex(int ifidx, int socket)
strcpy(devname[i], ifr.ifr_name);
#ifdef DEBUG
printf("new index %d (%s)\n", i, devname[i]);
#endif
pr_debug("new index %d (%s)\n", i, devname[i]);
return i;
}
@ -310,11 +308,9 @@ int main(int argc, char **argv)
for (i=0; i<currmax; i++) {
#ifdef DEBUG
printf("open %d '%s' m%08X v%08X i%d e%d.\n",
pr_debug("open %d '%s' m%08X v%08X i%d e%d.\n",
i, argv[optind+i], mask[i], value[i],
inv_filter[i], err_mask[i]);
#endif
if ((s[i] = socket(PF_CAN, SOCK_RAW, CAN_RAW)) < 0) {
perror("socket");

20
include/linux/can/error.h
View File

@ -57,6 +57,8 @@
#define CAN_ERR_BUSOFF 0x00000040U /* bus off */
#define CAN_ERR_BUSERROR 0x00000080U /* bus error (may flood!) */
#define CAN_ERR_RESTARTED 0x00000100U /* controller restarted */
#define CAN_ERR_CNT 0x00000200U /* TX error counter / data[6] */
/* RX error counter / data[7] */
/* arbitration lost in bit ... / data[0] */
#define CAN_ERR_LOSTARB_UNSPEC 0x00 /* unspecified */
@ -120,6 +122,22 @@
#define CAN_ERR_TRX_CANL_SHORT_TO_GND 0x70 /* 0111 0000 */
#define CAN_ERR_TRX_CANL_SHORT_TO_CANH 0x80 /* 1000 0000 */
/* controller specific additional information / data[5..7] */
/* data[5] is reserved (do not use) */
/* TX error counter / data[6] */
/* RX error counter / data[7] */
/* CAN state thresholds
*
* Error counter Error state
* -----------------------------------
* 0 - 95 Error-active
* 96 - 127 Error-warning
* 128 - 255 Error-passive
* 256 and greater Bus-off
*/
#define CAN_ERROR_WARNING_THRESHOLD 96
#define CAN_ERROR_PASSIVE_THRESHOLD 128
#define CAN_BUS_OFF_THRESHOLD 256
#endif /* _UAPI_CAN_ERROR_H */

2
lib.c
View File

@ -680,7 +680,7 @@ void snprintf_can_error_frame(char *buf, size_t len, const struct canfd_frame *c
}
}
if (cf->data[6] || cf->data[7]) {
if (cf->can_id & CAN_ERR_CNT || cf->data[6] || cf->data[7]) {
n += snprintf(buf + n, len - n, "%s", sep);
n += snprintf(buf + n, len - n, "error-counter-tx-rx{{%d}{%d}}",
cf->data[6], cf->data[7]);

7
lib.h
View File

@ -47,6 +47,13 @@
#include <stdio.h>
#ifdef DEBUG
#define pr_debug(fmt, args...) printf(fmt, ##args)
#else
__attribute__((format (printf, 1, 2)))
static inline int pr_debug(const char* fmt, ...) {return 0;}
#endif
/* buffer sizes for CAN frame string representations */
#define CL_ID (sizeof("12345678##1"))

10
mcp251xfd/mcp251xfd-dev-coredump.c
View File

@ -17,18 +17,10 @@
#include <linux/kernel.h>
#include "lib.h"
#include "mcp251xfd.h"
#include "mcp251xfd-dump-userspace.h"
#define pr_err(fmt, args...) fprintf(stderr, fmt, ##args)
#define pr_no(fmt, args...) while (0) { fprintf(stdout, fmt, ##args); }
#ifdef DEBUG
#define pr_debug(fmt, args...) pr_err(fmt, ##args)
#else
#define pr_debug(fmt, args...) pr_no(fmt, ##args)
#endif
struct mcp251xfd_dump_iter {
const void *start;

27
slcanpty.c
View File

@ -43,27 +43,12 @@
#include <linux/can/raw.h>
#include <linux/sockios.h>
#include "lib.h"
/* maximum rx buffer len: extended CAN frame with timestamp */
#define SLC_MTU (sizeof("T1111222281122334455667788EA5F\r")+1)
#define DEVICE_NAME_PTMX "/dev/ptmx"
#define DEBUG
static int asc2nibble(char c)
{
if ((c >= '0') && (c <= '9'))
return c - '0';
if ((c >= 'A') && (c <= 'F'))
return c - 'A' + 10;
if ((c >= 'a') && (c <= 'f'))
return c - 'a' + 10;
return 16; /* error */
}
/* read data from pty, send CAN frames to CAN socket and answer commands */
int pty2can(int pty, int socket, struct can_filter *fi,
int *is_open, int *tstamp)
@ -119,14 +104,12 @@ rx_restart:
cmd = buf[0];
buf[nbytes] = 0;
#ifdef DEBUG
for (tmp = 0; tmp < nbytes; tmp++)
if (buf[tmp] == '\r')
putchar('@');
pr_debug("@");
else
putchar(buf[tmp]);
printf("\n");
#endif
pr_debug("%c", buf[tmp]);
pr_debug("\n");
/* check for filter configuration commands */
if (cmd == 'm' || cmd == 'M') {