Merge 0cfff2e5da into ed7822c9a2

candump.c

@@ -72,9 +72,6 @@
 #ifndef SO_TIMESTAMPING
 #define SO_TIMESTAMPING 37
 #endif
-#ifndef SCM_TIMESTAMPING
-#define SCM_TIMESTAMPING SO_TIMESTAMPING
-#endif
 
 #define TIMESTAMPSZ 50 /* string 'absolute with date' requires max 49 bytes */
 
@@ -810,13 +807,13 @@ int main(int argc, char **argv)
 			for (cmsg = CMSG_FIRSTHDR(&msg);
 			     cmsg && (cmsg->cmsg_level == SOL_SOCKET);
 			     cmsg = CMSG_NXTHDR(&msg,cmsg)) {
-				if (cmsg->cmsg_type == SCM_TIMESTAMP) {
+				if (cmsg->cmsg_type == SO_TIMESTAMP) {
 					struct timeval tv;
 					memcpy(&tv, CMSG_DATA(cmsg), sizeof(tv));
 					ts.tv_sec = tv.tv_sec;
 					ts.tv_nsec = tv.tv_usec;
 					ts.tv_nsec *= 1000;
-				} else if (cmsg->cmsg_type == SCM_TIMESTAMPING) {
+				} else if (cmsg->cmsg_type == SO_TIMESTAMPING) {
 					struct timespec *stamp = (struct timespec *)CMSG_DATA(cmsg);
 
 					/*

cangen.c

@@ -180,7 +180,7 @@ static void print_usage(char *prg)
 	fprintf(stderr, "         -X            (generate CAN XL CAN frames)\n");
 	fprintf(stderr, "         -R            (generate RTR frames)\n");
 	fprintf(stderr, "         -8            (allow DLC values greater then 8 for Classic CAN frames)\n");
-	fprintf(stderr, "         -m            (mix CC [-e -R] FD [-f -b -E] XL [-X] on capable devices)\n");
+	fprintf(stderr, "         -m            (mix -e -f -b -E -R -X frames)\n");
 	fprintf(stderr, "         -I <mode>     (CAN ID generation mode - see below)\n");
 	fprintf(stderr, "         -L <mode>     (CAN data length code (dlc) generation mode - see below)\n");
 	fprintf(stderr, "         -D <mode>     (CAN data (payload) generation mode - see below)\n");
@@ -339,9 +339,10 @@ resend:
 	nbytes = sendmsg(fd, &msg, 0);
 	if (nbytes < 0) {
 		ret = -errno;
-		if (ret != -ENOBUFS)
+		if (ret != -ENOBUFS) {
+			perror("write");
 			return ret;
-
+		}
 		if (!ignore_enobufs && !timeout) {
 			perror("write");
 			return ret;
@@ -454,9 +455,6 @@ int main(int argc, char **argv)
 	unsigned char extended = 0;
 	unsigned char canfd = 0;
 	unsigned char canxl = 0;
-	unsigned char mixcc = 1; /* mix default */
-	unsigned char mixfd = 1; /* mix default */
-	unsigned char mixxl = 1; /* mix default */
 	unsigned char brs = 0;
 	unsigned char esi = 0;
 	unsigned char mix = 0;
@@ -576,6 +574,7 @@ int main(int argc, char **argv)
 
 		case 'm':
 			mix = 1;
+			canfd = 1; /* to switch the socket into CAN FD mode */
 			view |= CANLIB_VIEW_INDENT_SFF;
 			break;
 
@@ -778,32 +777,34 @@ int main(int argc, char **argv)
 			   &loopback, sizeof(loopback));
 	}
 
-	/* get CAN netdevice MTU for frame type capabilities */
+	if (canfd || canxl) {
+
+		/* check if the frame fits into the CAN netdevice */
 		if (ioctl(s, SIOCGIFMTU, &ifr) < 0) {
 			perror("SIOCGIFMTU");
 			return 1;
 		}
 
-	/* check CAN XL support */
+		if (canfd) {
-	if (ifr.ifr_mtu < (int)CANXL_MIN_MTU) {
+			/* ensure discrete CAN FD length values 0..8, 12, 16, 20, 24, 32, 64 */
-		mixxl = 0;
+			cu.fd.len = can_fd_dlc2len(can_fd_len2dlc(cu.fd.len));
-		if (canxl) {
+		} else {
+			/* limit fixed CAN XL data length to 64 */
+			if (cu.fd.len > CANFD_MAX_DLEN)
+				cu.fd.len = CANFD_MAX_DLEN;
+		}
+
+		if (canxl && (ifr.ifr_mtu < (int)CANXL_MIN_MTU)) {
 			printf("CAN interface not CAN XL capable - sorry.\n");
 			return 1;
 		}
-	}
 
-	/* check CAN FD support */
+		if (canfd && (ifr.ifr_mtu < (int)CANFD_MTU)) {
-	if (ifr.ifr_mtu < (int)CANFD_MTU) {
-		mixfd = 0;
-		if (canfd) {
 			printf("CAN interface not CAN FD capable - sorry.\n");
 			return 1;
 		}
-	}
 
-	/* enable CAN FD on the socket */
+		if (ifr.ifr_mtu == (int)CANFD_MTU) {
-	if (mixfd) {
 			/* interface is ok - try to switch the socket into CAN FD mode */
 			if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_FD_FRAMES,
 				       &enable_canfx, sizeof(enable_canfx))){
@@ -812,8 +813,7 @@ int main(int argc, char **argv)
 			}
 		}
 
-	/* enable CAN XL on the socket */
+		if (ifr.ifr_mtu >= (int)CANXL_MIN_MTU) {
-	if (mixxl) {
 			/* interface is ok - try to switch the socket into CAN XL mode */
 			if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_XL_FRAMES,
 				       &enable_canfx, sizeof(enable_canfx))){
@@ -828,16 +828,6 @@ int main(int argc, char **argv)
 			}
 		}
 
-	/* sanitize given values */
-	if (canfd || canxl) {
-		if (canfd) {
-			/* ensure discrete CAN FD length values 0..8, 12, 16, 20, 24, 32, 64 */
-			cu.fd.len = can_fd_dlc2len(can_fd_len2dlc(cu.fd.len));
-		} else {
-			/* limit fixed CAN XL data length to 64 */
-			if (cu.fd.len > CANFD_MAX_DLEN)
-				cu.fd.len = CANFD_MAX_DLEN;
-		}
 	} else {
 		/* sanitize Classical CAN 2.0 frame length */
 		if (len8_dlc) {
@@ -1050,31 +1040,8 @@ int main(int argc, char **argv)
 		}
 
 		ret = do_send_one(s, &cu, mtu, polltimeout);
-		if ((ret == -EINVAL) && mix) {
+		if (ret)
-			/* mix mode: disable unsupported CAN frame type */
-			switch (mtu) {
-			case CAN_MTU:
-				mixcc = 0;
-				break;
-			case CANFD_MTU:
-				mixfd = 0;
-				break;
-			case CANXL_MTU:
-				mixxl = 0;
-				break;
-			default:
-				printf ("mix mode: unknown MTU");
 			return 1;
-			}
-			if (!mixcc && !mixfd && !mixxl) {
-				printf ("mix mode: no valid CAN frame types\n");
-				return 1;
-			}
-		} else if (ret) {
-			/* other error than -ENOBUFS and -EINVAL */
-			perror("write");
-			return 1;
-		}
 
 		if (burst_sent_count >= burst_count)
 			burst_sent_count = 0;
@@ -1115,41 +1082,18 @@ int main(int argc, char **argv)
 		}
 
 		if (mix) {
-			canfd = 0;
-			canxl = 0;
 			i = random();
 			extended = i & 1;
-			if (mixfd) {
 			canfd = i & 2;
 			if (canfd) {
 				brs = i & 4;
 				esi = i & 8;
 			}
-			}
+			/* generate CAN XL traffic if the interface is capable */
-			if (mixxl) {
+			if (ifr.ifr_mtu >= (int)CANXL_MIN_MTU)
-				if (mixfd)
+				canxl = ((i & 96) == 96);
-					canxl = ((i & 96) == 96); /* 1/4 */
+
-				else
+			rtr_frame = ((i & 24) == 24); /* reduce RTR frames to 1/4 */
-					canxl = ((i & 32) == 32); /* 1/2 */
-			}
-			if (mixcc) {
-				rtr_frame = ((i & 24) == 24); /* reduce RTR to 1/4 */
-			} else {
-				/* no CC frames allowed - CAN XL-only mode? */
-				if (!canxl && !canfd) {
-					/* force XL or FD frames */
-					if (mixxl)
-						canxl = 1;
-					else if (mixfd) {
-						canfd = 1;
-						brs = i & 4;
-						esi = i & 8;
-					} else {
-						printf ("mix mode: no valid CAN frame types\n");
-						return 1;
-					}
-				}
-			}
 		}
 	}
 

j1939acd.c

@@ -112,10 +112,10 @@ static struct {
 	int sig_alrm;
 	int sig_usr1;
 	int state;
-#define STATE_INITIAL 0
+		#define STATE_INITIAL 0
-#define STATE_REQ_SENT 1
+		#define STATE_REQ_SENT 1
-#define STATE_REQ_PENDING 2 /* wait 1250 msec for first claim */
+		#define STATE_REQ_PENDING 2 /* wait 1250 msec for first claim */
-#define STATE_OPERATIONAL 3
+		#define STATE_OPERATIONAL 3
 } s = {
 	.intf = default_intf,
 	.ranges = default_range,
@@ -126,8 +126,8 @@ static struct {
 struct {
 	uint64_t name;
 	int flags;
-#define F_USE 0x01
+		#define F_USE	0x01
-#define F_SEEN 0x02
+		#define F_SEEN	0x02
 } addr[J1939_IDLE_ADDR /* =254 */];
 
 /* lookup by name */

j1939sr.c

@@ -68,9 +68,9 @@ static struct {
 	int pkt_len;
 	int priority;
 	int defined;
-#define DEF_SRC 1
+	#define DEF_SRC		1
-#define DEF_DST 2
+	#define DEF_DST		2
-#define DEF_PRIO 4
+	#define DEF_PRIO	4
 	struct sockaddr_can src, dst;
 } s = {
 	.priority = 6,

lib.c

@@ -83,8 +83,8 @@ static inline void _put_id(char *buf, int end_offset, canid_t id)
 
 /* CAN DLC to real data length conversion helpers */
 
-static const unsigned char dlc2len[] = {
+static const unsigned char dlc2len[] = {0, 1, 2, 3, 4, 5, 6, 7,
-	0, 1, 2, 3, 4, 5, 6, 7,	8, 12, 16, 20, 24, 32, 48, 64};
+					8, 12, 16, 20, 24, 32, 48, 64};
 
 /* get data length from raw data length code (DLC) */
 unsigned char can_fd_dlc2len(unsigned char dlc)
@@ -92,8 +92,7 @@ unsigned char can_fd_dlc2len(unsigned char dlc)
 	return dlc2len[dlc & 0x0F];
 }
 
-static const unsigned char len2dlc[] = {
+static const unsigned char len2dlc[] = {0, 1, 2, 3, 4, 5, 6, 7, 8,		/* 0 - 8 */
-	0, 1, 2, 3, 4, 5, 6, 7, 8,		/* 0 - 8 */
 					9, 9, 9, 9,				/* 9 - 12 */
 					10, 10, 10, 10,				/* 13 - 16 */
 					11, 11, 11, 11,				/* 17 - 20 */