224 usb_set_ring_size(pcap_t* handle, int header_size)  in usb_set_ring_size()  argument
248 	if (handle->snapshot < header_size)  in usb_set_ring_size()
249 		handle->snapshot = header_size;  in usb_set_ring_size()
251 	ring_size = (handle->snapshot - header_size) * 5;  in usb_set_ring_size()
266 		handle->snapshot = header_size + (MAX_RING_SIZE/5);  in usb_set_ring_size()
277 	if (ioctl(handle->fd, MON_IOCT_RING_SIZE, ring_size) == -1) {  in usb_set_ring_size()
278 		pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_set_ring_size()
279 		    errno, "Can't set ring size from fd %d", handle->fd);  in usb_set_ring_size()
286 int usb_mmap(pcap_t* handle)  in usb_mmap()  argument
288 	struct pcap_usb_linux *handlep = handle->priv;  in usb_mmap()
296 	len = usb_set_ring_size(handle, (int)sizeof(pcap_usb_header_mmapped));  in usb_mmap()
304 	    MAP_SHARED, handle->fd, 0);  in usb_mmap()
461 usb_activate(pcap_t* handle)  in usb_activate()  argument
463 	struct pcap_usb_linux *handlep = handle->priv;  in usb_activate()
474 	if (handle->snapshot <= 0 || handle->snapshot > MAXIMUM_SNAPLEN)  in usb_activate()
475 		handle->snapshot = MAXIMUM_SNAPLEN;  in usb_activate()
478 	handle->bufsize = handle->snapshot;  in usb_activate()
479 	handle->offset = 0;  in usb_activate()
480 	handle->linktype = DLT_USB_LINUX;  in usb_activate()
482 	handle->inject_op = usb_inject_linux;  in usb_activate()
483 	handle->setfilter_op = pcapint_install_bpf_program; /* no kernel filtering */  in usb_activate()
484 	handle->setdirection_op = usb_setdirection_linux;  in usb_activate()
485 	handle->set_datalink_op = NULL;	/* can't change data link type */  in usb_activate()
486 	handle->getnonblock_op = pcapint_getnonblock_fd;  in usb_activate()
487 	handle->setnonblock_op = pcapint_setnonblock_fd;  in usb_activate()
490 	if (sscanf(handle->opt.device, USB_IFACE"%d", &handlep->bus_index) != 1)  in usb_activate()
492 		snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_activate()
493 			"Can't get USB bus index from %s", handle->opt.device);  in usb_activate()
503 	handle->fd = open(full_path, O_RDONLY, 0);  in usb_activate()
504 	if (handle->fd < 0)  in usb_activate()
527 			handle->errbuf[0] = '\0';  in usb_activate()
535 			snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_activate()
545 			pcapint_fmt_errmsg_for_errno(handle->errbuf,  in usb_activate()
552 	if (handle->opt.rfmon)  in usb_activate()
557 		close(handle->fd);  in usb_activate()
562 	if (usb_mmap(handle))  in usb_activate()
565 		handle->linktype = DLT_USB_LINUX_MMAPPED;  in usb_activate()
566 		handle->stats_op = usb_stats_linux_bin;  in usb_activate()
567 		handle->read_op = usb_read_linux_mmap;  in usb_activate()
568 		handle->cleanup_op = usb_cleanup_linux_mmap;  in usb_activate()
577 		handle->selectable_fd = handle->fd;  in usb_activate()
589 	if (usb_set_ring_size(handle, (int)sizeof(pcap_usb_header)) == -1) {  in usb_activate()
591 		close(handle->fd);  in usb_activate()
594 	handle->stats_op = usb_stats_linux_bin;  in usb_activate()
595 	handle->read_op = usb_read_linux_bin;  in usb_activate()
604 	handle->selectable_fd = handle->fd;  in usb_activate()
608 	handle->buffer = malloc(handle->bufsize);  in usb_activate()
609 	if (!handle->buffer) {  in usb_activate()
610 		pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_activate()
612 		close(handle->fd);  in usb_activate()
619 usb_inject_linux(pcap_t *handle, const void *buf _U_, int size _U_)  in usb_inject_linux()  argument
621 	snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_inject_linux()
638 usb_stats_linux_bin(pcap_t *handle, struct pcap_stat *stats)  in usb_stats_linux_bin()  argument
640 	struct pcap_usb_linux *handlep = handle->priv;  in usb_stats_linux_bin()
643 	ret = ioctl(handle->fd, MON_IOCG_STATS, &st);  in usb_stats_linux_bin()
646 		pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_stats_linux_bin()
647 		    errno, "Can't read stats from fd %d", handle->fd);  in usb_stats_linux_bin()
662 usb_read_linux_bin(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_char *user)  in usb_read_linux_bin()  argument
664 	struct pcap_usb_linux *handlep = handle->priv;  in usb_read_linux_bin()
668 	u_int clen = handle->snapshot - sizeof(pcap_usb_header);  in usb_read_linux_bin()
671 	info.hdr = (pcap_usb_header*) handle->buffer;  in usb_read_linux_bin()
672 	info.data = (u_char *)handle->buffer + sizeof(pcap_usb_header);  in usb_read_linux_bin()
677 		ret = ioctl(handle->fd, MON_IOCX_GET, &info);  in usb_read_linux_bin()
678 		if (handle->break_loop)  in usb_read_linux_bin()
680 			handle->break_loop = 0;  in usb_read_linux_bin()
689 		pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_read_linux_bin()
690 		    errno, "Can't read from fd %d", handle->fd);  in usb_read_linux_bin()
735 	if (handle->fcode.bf_insns == NULL ||  in usb_read_linux_bin()
736 	    pcapint_filter(handle->fcode.bf_insns, handle->buffer,  in usb_read_linux_bin()
739 		callback(user, &pkth, handle->buffer);  in usb_read_linux_bin()
752 usb_read_linux_mmap(pcap_t *handle, int max_packets, pcap_handler callback, u_char *user)  in usb_read_linux_mmap()  argument
754 	struct pcap_usb_linux *handlep = handle->priv;  in usb_read_linux_mmap()
764 	max_clen = handle->snapshot - sizeof(pcap_usb_header_mmapped);  in usb_read_linux_mmap()
807 			ret = ioctl(handle->fd, MON_IOCX_MFETCH, &fetch);  in usb_read_linux_mmap()
808 			if (handle->break_loop)  in usb_read_linux_mmap()
810 				handle->break_loop = 0;  in usb_read_linux_mmap()
819 			pcapint_fmt_errmsg_for_errno(handle->errbuf,  in usb_read_linux_mmap()
821 			    handle->fd);  in usb_read_linux_mmap()
923 			if (handle->fcode.bf_insns == NULL ||  in usb_read_linux_mmap()
924 			    pcapint_filter(handle->fcode.bf_insns, (u_char*) hdr,  in usb_read_linux_mmap()
942 	if (ioctl(handle->fd, MON_IOCH_MFLUSH, nflush) == -1) {  in usb_read_linux_mmap()
943 		pcapint_fmt_errmsg_for_errno(handle->errbuf, PCAP_ERRBUF_SIZE,  in usb_read_linux_mmap()
944 		    errno, "Can't mflush fd %d", handle->fd);  in usb_read_linux_mmap()
951 usb_cleanup_linux_mmap(pcap_t* handle)  in usb_cleanup_linux_mmap()  argument
953 	struct pcap_usb_linux *handlep = handle->priv;  in usb_cleanup_linux_mmap()
960 	pcapint_cleanup_live_common(handle);  in usb_cleanup_linux_mmap()