/* * Copyright (c) 2018 Martin Pieuchot <mpi@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <dev/usb/usb.h> #include <dev/usb/usbpcap.h> #include <pcap.h> #include "interface.h" #ifndef nitems #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) #endif const char *usbpcap_xfer_type[] = {"isoc", "intr", "ctrl", "bulk"}; void usbpcap_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p) { u_int length = h->len; u_int caplen = h->caplen; const struct usbpcap_pkt_hdr *uph; u_int16_t hdrlen; ts_print(&h->ts); /* check length */ if (caplen < sizeof(uint16_t)) { printf("[|usb]"); goto out; } uph = (struct usbpcap_pkt_hdr *)p; hdrlen = letoh16(uph->uph_hlen); if (hdrlen < sizeof(*uph)) { printf("[usb: invalid header length %u!]", hdrlen); goto out; } if (caplen < hdrlen) { printf("[|usb]"); goto out; } printf("bus %u %c addr %u: ep%u", letoh16(uph->uph_bus), ((uph->uph_info & USBPCAP_INFO_DIRECTION_IN) ? '<' : '>'), letoh16(uph->uph_devaddr), UE_GET_ADDR(uph->uph_epaddr)); if (uph->uph_xfertype < nitems(usbpcap_xfer_type)) printf(" %s", usbpcap_xfer_type[uph->uph_xfertype]); else printf(" ??"); printf(" %u", letoh32(uph->uph_dlen)); if (xflag) default_print(p + sizeof(*uph), length - sizeof(*uph)); out: putchar('\n'); }