46 static int	iftraceinit(struct interface *ifp, struct ifdebug *ifd);
48 static void	dumptrace(FILE *fp, char *dir, struct ifdebug *ifd);
62 iftraceinit(struct interface *ifp, struct ifdebug *ifd)  in iftraceinit()  argument
66 	ifd->ifd_records = (struct iftrace *)  in iftraceinit()
68 	if (ifd->ifd_records == NULL)  in iftraceinit()
70 	ifd->ifd_front = ifd->ifd_records;  in iftraceinit()
71 	ifd->ifd_count = 0;  in iftraceinit()
72 	for (t = ifd->ifd_records; t < ifd->ifd_records + NRECORDS; t++) {  in iftraceinit()
76 	ifd->ifd_if = ifp;  in iftraceinit()
109 trace(struct ifdebug *ifd, struct sockaddr_in6 *who, char *p, int len, int m)  in trace()  argument
113 	if (ifd->ifd_records == 0)  in trace()
115 	t = ifd->ifd_front++;  in trace()
116 	if (ifd->ifd_front >= ifd->ifd_records + NRECORDS)  in trace()
117 		ifd->ifd_front = ifd->ifd_records;  in trace()
118 	if (ifd->ifd_count < NRECORDS)  in trace()
119 		ifd->ifd_count++;  in trace()
230 dumptrace(FILE *fp, char *dir, struct ifdebug *ifd)  in dumptrace()  argument
235 	if (ifd->ifd_front == ifd->ifd_records &&  in dumptrace()
236 	    ifd->ifd_front->ift_size == 0) {  in dumptrace()
242 	t = ifd->ifd_front - ifd->ifd_count;  in dumptrace()
243 	if (t < ifd->ifd_records)  in dumptrace()
245 	for (; ifd->ifd_count; ifd->ifd_count--, t++) {  in dumptrace()
246 		if (t >= ifd->ifd_records + NRECORDS)  in dumptrace()
247 			t = ifd->ifd_records;  in dumptrace()