/* $NetBSD: if_urndis.c,v 1.47.4.2 2023/10/14 07:05:39 martin Exp $ */ /* $OpenBSD: if_urndis.c,v 1.31 2011/07/03 15:47:17 matthew Exp $ */ /* * Copyright (c) 2010 Jonathan Armani * Copyright (c) 2010 Fabien Romano * Copyright (c) 2010 Michael Knudsen * All rights reserved. * * 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 __KERNEL_RCSID(0, "$NetBSD: if_urndis.c,v 1.47.4.2 2023/10/14 07:05:39 martin Exp $"); #ifdef _KERNEL_OPT #include "opt_usb.h" #endif #include #include #include #include #include #include #define RNDIS_RX_LIST_CNT 1 #define RNDIS_TX_LIST_CNT 1 #define RNDIS_BUFSZ 1562 struct urndis_softc { struct usbnet sc_un; int sc_ifaceno_ctl; /* RNDIS device info */ uint32_t sc_filter; uint32_t sc_maxppt; uint32_t sc_maxtsz; uint32_t sc_palign; }; #ifdef URNDIS_DEBUG #define DPRINTF(x) do { printf x; } while (0) #else #define DPRINTF(x) #endif #define DEVNAME(un) (device_xname(un->un_dev)) #define URNDIS_RESPONSE_LEN 0x400 #if 0 static void urndis_watchdog(struct ifnet *); #endif static int urndis_uno_init(struct ifnet *); static void urndis_uno_rx_loop(struct usbnet *, struct usbnet_chain *, uint32_t); static unsigned urndis_uno_tx_prepare(struct usbnet *, struct mbuf *, struct usbnet_chain *); static uint32_t urndis_ctrl_handle_init(struct usbnet *, const struct rndis_comp_hdr *); static uint32_t urndis_ctrl_handle_query(struct usbnet *, const struct rndis_comp_hdr *, void **, size_t *); static uint32_t urndis_ctrl_handle_reset(struct usbnet *, const struct rndis_comp_hdr *); static uint32_t urndis_ctrl_handle_status(struct usbnet *, const struct rndis_comp_hdr *); static uint32_t urndis_ctrl_set(struct usbnet *, uint32_t, void *, size_t); static int urndis_match(device_t, cfdata_t, void *); static void urndis_attach(device_t, device_t, void *); static const struct usbnet_ops urndis_ops = { .uno_init = urndis_uno_init, .uno_tx_prepare = urndis_uno_tx_prepare, .uno_rx_loop = urndis_uno_rx_loop, }; CFATTACH_DECL_NEW(urndis, sizeof(struct urndis_softc), urndis_match, urndis_attach, usbnet_detach, usbnet_activate); /* * Supported devices that we can't match by class IDs. */ static const struct usb_devno urndis_devs[] = { { USB_VENDOR_HTC, USB_PRODUCT_HTC_ANDROID }, { USB_VENDOR_SAMSUNG, USB_PRODUCT_SAMSUNG_ANDROID2 }, { USB_VENDOR_SAMSUNG, USB_PRODUCT_SAMSUNG_ANDROID }, { USB_VENDOR_ONEPLUS, USB_PRODUCT_ONEPLUS_A5010 } }; static usbd_status urndis_ctrl_msg(struct usbnet *un, uint8_t rt, uint8_t r, uint16_t index, uint16_t value, void *buf, size_t buflen) { usb_device_request_t req; req.bmRequestType = rt; req.bRequest = r; USETW(req.wValue, value); USETW(req.wIndex, index); USETW(req.wLength, buflen); return usbd_do_request(un->un_udev, &req, buf); } static usbd_status urndis_ctrl_send(struct usbnet *un, void *buf, size_t len) { struct urndis_softc *sc = usbnet_softc(un); usbd_status err; if (usbnet_isdying(un)) return(0); err = urndis_ctrl_msg(un, UT_WRITE_CLASS_INTERFACE, UR_GET_STATUS, sc->sc_ifaceno_ctl, 0, buf, len); if (err != USBD_NORMAL_COMPLETION) printf("%s: %s\n", DEVNAME(un), usbd_errstr(err)); return err; } static struct rndis_comp_hdr * urndis_ctrl_recv(struct usbnet *un) { struct urndis_softc *sc = usbnet_softc(un); struct rndis_comp_hdr *hdr; char *buf; usbd_status err; if (usbnet_isdying(un)) return(0); buf = kmem_alloc(URNDIS_RESPONSE_LEN, KM_SLEEP); err = urndis_ctrl_msg(un, UT_READ_CLASS_INTERFACE, UR_CLEAR_FEATURE, sc->sc_ifaceno_ctl, 0, buf, URNDIS_RESPONSE_LEN); if (err != USBD_NORMAL_COMPLETION && err != USBD_SHORT_XFER) { printf("%s: %s\n", DEVNAME(un), usbd_errstr(err)); kmem_free(buf, URNDIS_RESPONSE_LEN); return NULL; } hdr = (struct rndis_comp_hdr *)buf; DPRINTF(("%s: urndis_ctrl_recv: type %#x len %u\n", DEVNAME(un), le32toh(hdr->rm_type), le32toh(hdr->rm_len))); if (le32toh(hdr->rm_len) > URNDIS_RESPONSE_LEN) { printf("%s: ctrl message error: wrong size %u > %u\n", DEVNAME(un), le32toh(hdr->rm_len), URNDIS_RESPONSE_LEN); kmem_free(buf, URNDIS_RESPONSE_LEN); return NULL; } return hdr; } static uint32_t urndis_ctrl_handle(struct usbnet *un, struct rndis_comp_hdr *hdr, void **buf, size_t *bufsz) { uint32_t rval; DPRINTF(("%s: urndis_ctrl_handle\n", DEVNAME(un))); if (buf && bufsz) { *buf = NULL; *bufsz = 0; } switch (le32toh(hdr->rm_type)) { case REMOTE_NDIS_INITIALIZE_CMPLT: rval = urndis_ctrl_handle_init(un, hdr); break; case REMOTE_NDIS_QUERY_CMPLT: rval = urndis_ctrl_handle_query(un, hdr, buf, bufsz); break; case REMOTE_NDIS_RESET_CMPLT: rval = urndis_ctrl_handle_reset(un, hdr); break; case REMOTE_NDIS_KEEPALIVE_CMPLT: case REMOTE_NDIS_SET_CMPLT: rval = le32toh(hdr->rm_status); break; case REMOTE_NDIS_INDICATE_STATUS_MSG: rval = urndis_ctrl_handle_status(un, hdr); break; default: printf("%s: ctrl message error: unknown event %#x\n", DEVNAME(un), le32toh(hdr->rm_type)); rval = RNDIS_STATUS_FAILURE; } kmem_free(hdr, URNDIS_RESPONSE_LEN); return rval; } static uint32_t urndis_ctrl_handle_init(struct usbnet *un, const struct rndis_comp_hdr *hdr) { struct urndis_softc *sc = usbnet_softc(un); const struct rndis_init_comp *msg; msg = (const struct rndis_init_comp *) hdr; DPRINTF(("%s: urndis_ctrl_handle_init: len %u rid %u status %#x " "ver_major %u ver_minor %u devflags %#x medium %#x pktmaxcnt %u " "pktmaxsz %u align %u aflistoffset %u aflistsz %u\n", DEVNAME(un), le32toh(msg->rm_len), le32toh(msg->rm_rid), le32toh(msg->rm_status), le32toh(msg->rm_ver_major), le32toh(msg->rm_ver_minor), le32toh(msg->rm_devflags), le32toh(msg->rm_medium), le32toh(msg->rm_pktmaxcnt), le32toh(msg->rm_pktmaxsz), le32toh(msg->rm_align), le32toh(msg->rm_aflistoffset), le32toh(msg->rm_aflistsz))); if (le32toh(msg->rm_status) != RNDIS_STATUS_SUCCESS) { printf("%s: init failed %#x\n", DEVNAME(un), le32toh(msg->rm_status)); return le32toh(msg->rm_status); } if (le32toh(msg->rm_devflags) != RNDIS_DF_CONNECTIONLESS) { printf("%s: wrong device type (current type: %#x)\n", DEVNAME(un), le32toh(msg->rm_devflags)); return RNDIS_STATUS_FAILURE; } if (le32toh(msg->rm_medium) != RNDIS_MEDIUM_802_3) { printf("%s: medium not 802.3 (current medium: %#x)\n", DEVNAME(un), le32toh(msg->rm_medium)); return RNDIS_STATUS_FAILURE; } if (le32toh(msg->rm_ver_major) != RNDIS_MAJOR_VERSION || le32toh(msg->rm_ver_minor) != RNDIS_MINOR_VERSION) { printf("%s: version not %u.%u (current version: %u.%u)\n", DEVNAME(un), RNDIS_MAJOR_VERSION, RNDIS_MINOR_VERSION, le32toh(msg->rm_ver_major), le32toh(msg->rm_ver_minor)); return RNDIS_STATUS_FAILURE; } sc->sc_maxppt = le32toh(msg->rm_pktmaxcnt); sc->sc_maxtsz = le32toh(msg->rm_pktmaxsz); sc->sc_palign = 1U << le32toh(msg->rm_align); return le32toh(msg->rm_status); } static uint32_t urndis_ctrl_handle_query(struct usbnet *un, const struct rndis_comp_hdr *hdr, void **buf, size_t *bufsz) { const struct rndis_query_comp *msg; msg = (const struct rndis_query_comp *) hdr; DPRINTF(("%s: urndis_ctrl_handle_query: len %u rid %u status %#x " "buflen %u bufoff %u\n", DEVNAME(un), le32toh(msg->rm_len), le32toh(msg->rm_rid), le32toh(msg->rm_status), le32toh(msg->rm_infobuflen), le32toh(msg->rm_infobufoffset))); if (buf && bufsz) { *buf = NULL; *bufsz = 0; } if (le32toh(msg->rm_status) != RNDIS_STATUS_SUCCESS) { printf("%s: query failed %#x\n", DEVNAME(un), le32toh(msg->rm_status)); return le32toh(msg->rm_status); } if (le32toh(msg->rm_infobuflen) + le32toh(msg->rm_infobufoffset) + RNDIS_HEADER_OFFSET > le32toh(msg->rm_len)) { printf("%s: ctrl message error: invalid query info " "len/offset/end_position(%u/%u/%u) -> " "go out of buffer limit %u\n", DEVNAME(un), le32toh(msg->rm_infobuflen), le32toh(msg->rm_infobufoffset), le32toh(msg->rm_infobuflen) + le32toh(msg->rm_infobufoffset) + (uint32_t)RNDIS_HEADER_OFFSET, le32toh(msg->rm_len)); return RNDIS_STATUS_FAILURE; } if (buf && bufsz) { const char *p; *buf = kmem_alloc(le32toh(msg->rm_infobuflen), KM_SLEEP); *bufsz = le32toh(msg->rm_infobuflen); p = (const char *)&msg->rm_rid; p += le32toh(msg->rm_infobufoffset); memcpy(*buf, p, le32toh(msg->rm_infobuflen)); } return le32toh(msg->rm_status); } static uint32_t urndis_ctrl_handle_reset(struct usbnet *un, const struct rndis_comp_hdr *hdr) { struct urndis_softc *sc = usbnet_softc(un); const struct rndis_reset_comp *msg; uint32_t rval; msg = (const struct rndis_reset_comp *) hdr; rval = le32toh(msg->rm_status); DPRINTF(("%s: urndis_ctrl_handle_reset: len %u status %#x " "adrreset %u\n", DEVNAME(un), le32toh(msg->rm_len), rval, le32toh(msg->rm_adrreset))); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: reset failed %#x\n", DEVNAME(un), rval); return rval; } if (le32toh(msg->rm_adrreset) != 0) { uint32_t filter; filter = htole32(sc->sc_filter); rval = urndis_ctrl_set(un, OID_GEN_CURRENT_PACKET_FILTER, &filter, sizeof(filter)); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: unable to reset data filters\n", DEVNAME(un)); return rval; } } return rval; } static uint32_t urndis_ctrl_handle_status(struct usbnet *un, const struct rndis_comp_hdr *hdr) { const struct rndis_status_msg *msg; uint32_t rval; msg = (const struct rndis_status_msg *)hdr; rval = le32toh(msg->rm_status); DPRINTF(("%s: urndis_ctrl_handle_status: len %u status %#x " "stbuflen %u\n", DEVNAME(un), le32toh(msg->rm_len), rval, le32toh(msg->rm_stbuflen))); switch (rval) { case RNDIS_STATUS_MEDIA_CONNECT: case RNDIS_STATUS_MEDIA_DISCONNECT: case RNDIS_STATUS_OFFLOAD_CURRENT_CONFIG: rval = RNDIS_STATUS_SUCCESS; break; default: printf("%s: status %#x\n", DEVNAME(un), rval); } return rval; } static uint32_t urndis_ctrl_init(struct usbnet *un) { struct rndis_init_req *msg; uint32_t rval; struct rndis_comp_hdr *hdr; msg = kmem_alloc(sizeof(*msg), KM_SLEEP); msg->rm_type = htole32(REMOTE_NDIS_INITIALIZE_MSG); msg->rm_len = htole32(sizeof(*msg)); msg->rm_rid = htole32(0); msg->rm_ver_major = htole32(RNDIS_MAJOR_VERSION); msg->rm_ver_minor = htole32(RNDIS_MINOR_VERSION); msg->rm_max_xfersz = htole32(RNDIS_BUFSZ); DPRINTF(("%s: urndis_ctrl_init send: type %u len %u rid %u ver_major %u " "ver_minor %u max_xfersz %u\n", DEVNAME(un), le32toh(msg->rm_type), le32toh(msg->rm_len), le32toh(msg->rm_rid), le32toh(msg->rm_ver_major), le32toh(msg->rm_ver_minor), le32toh(msg->rm_max_xfersz))); rval = urndis_ctrl_send(un, msg, sizeof(*msg)); kmem_free(msg, sizeof(*msg)); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: init failed\n", DEVNAME(un)); return rval; } if ((hdr = urndis_ctrl_recv(un)) == NULL) { printf("%s: unable to get init response\n", DEVNAME(un)); return RNDIS_STATUS_FAILURE; } rval = urndis_ctrl_handle(un, hdr, NULL, NULL); return rval; } #if 0 static uint32_t urndis_ctrl_halt(struct usbnet *un) { struct rndis_halt_req *msg; uint32_t rval; msg = kmem_alloc(sizeof(*msg), KM_SLEEP); msg->rm_type = htole32(REMOTE_NDIS_HALT_MSG); msg->rm_len = htole32(sizeof(*msg)); msg->rm_rid = 0; DPRINTF(("%s: urndis_ctrl_halt send: type %u len %u rid %u\n", DEVNAME(un), le32toh(msg->rm_type), le32toh(msg->rm_len), le32toh(msg->rm_rid))); rval = urndis_ctrl_send(un, msg, sizeof(*msg)); kmem_free(msg, sizeof(*msg)); if (rval != RNDIS_STATUS_SUCCESS) printf("%s: halt failed\n", DEVNAME(un)); return rval; } #endif static uint32_t urndis_ctrl_query(struct usbnet *un, uint32_t oid, void *qbuf, size_t qlen, void **rbuf, size_t *rbufsz) { struct rndis_query_req *msg; uint32_t rval; struct rndis_comp_hdr *hdr; msg = kmem_alloc(sizeof(*msg) + qlen, KM_SLEEP); msg->rm_type = htole32(REMOTE_NDIS_QUERY_MSG); msg->rm_len = htole32(sizeof(*msg) + qlen); msg->rm_rid = 0; /* XXX */ msg->rm_oid = htole32(oid); msg->rm_infobuflen = htole32(qlen); if (qlen != 0) { msg->rm_infobufoffset = htole32(20); memcpy((char*)msg + 20, qbuf, qlen); } else msg->rm_infobufoffset = 0; msg->rm_devicevchdl = 0; DPRINTF(("%s: urndis_ctrl_query send: type %u len %u rid %u oid %#x " "infobuflen %u infobufoffset %u devicevchdl %u\n", DEVNAME(un), le32toh(msg->rm_type), le32toh(msg->rm_len), le32toh(msg->rm_rid), le32toh(msg->rm_oid), le32toh(msg->rm_infobuflen), le32toh(msg->rm_infobufoffset), le32toh(msg->rm_devicevchdl))); rval = urndis_ctrl_send(un, msg, sizeof(*msg)); kmem_free(msg, sizeof(*msg) + qlen); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: query failed\n", DEVNAME(un)); return rval; } if ((hdr = urndis_ctrl_recv(un)) == NULL) { printf("%s: unable to get query response\n", DEVNAME(un)); return RNDIS_STATUS_FAILURE; } rval = urndis_ctrl_handle(un, hdr, rbuf, rbufsz); return rval; } static uint32_t urndis_ctrl_set(struct usbnet *un, uint32_t oid, void *buf, size_t len) { struct rndis_set_req *msg; uint32_t rval; struct rndis_comp_hdr *hdr; msg = kmem_alloc(sizeof(*msg) + len, KM_SLEEP); msg->rm_type = htole32(REMOTE_NDIS_SET_MSG); msg->rm_len = htole32(sizeof(*msg) + len); msg->rm_rid = 0; /* XXX */ msg->rm_oid = htole32(oid); msg->rm_infobuflen = htole32(len); if (len != 0) { msg->rm_infobufoffset = htole32(20); memcpy((char*)msg + 20, buf, len); } else msg->rm_infobufoffset = 0; msg->rm_devicevchdl = 0; DPRINTF(("%s: urndis_ctrl_set send: type %u len %u rid %u oid %#x " "infobuflen %u infobufoffset %u devicevchdl %u\n", DEVNAME(un), le32toh(msg->rm_type), le32toh(msg->rm_len), le32toh(msg->rm_rid), le32toh(msg->rm_oid), le32toh(msg->rm_infobuflen), le32toh(msg->rm_infobufoffset), le32toh(msg->rm_devicevchdl))); rval = urndis_ctrl_send(un, msg, sizeof(*msg)); kmem_free(msg, sizeof(*msg) + len); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: set failed\n", DEVNAME(un)); return rval; } if ((hdr = urndis_ctrl_recv(un)) == NULL) { printf("%s: unable to get set response\n", DEVNAME(un)); return RNDIS_STATUS_FAILURE; } rval = urndis_ctrl_handle(un, hdr, NULL, NULL); if (rval != RNDIS_STATUS_SUCCESS) printf("%s: set failed %#x\n", DEVNAME(un), rval); return rval; } #if 0 static uint32_t urndis_ctrl_set_param(struct urndis_softc *un, const char *name, uint32_t type, void *buf, size_t len) { struct rndis_set_parameter *param; uint32_t rval; size_t namelen, tlen; if (name) namelen = strlen(name); else namelen = 0; tlen = sizeof(*param) + len + namelen; param = kmem_alloc(tlen, KM_SLEEP); param->rm_namelen = htole32(namelen); param->rm_valuelen = htole32(len); param->rm_type = htole32(type); if (namelen != 0) { param->rm_nameoffset = htole32(20); memcpy(param + 20, name, namelen); } else param->rm_nameoffset = 0; if (len != 0) { param->rm_valueoffset = htole32(20 + namelen); memcpy(param + 20 + namelen, buf, len); } else param->rm_valueoffset = 0; DPRINTF(("%s: urndis_ctrl_set_param send: nameoffset %u namelen %u " "type %#x valueoffset %u valuelen %u\n", DEVNAME(un), le32toh(param->rm_nameoffset), le32toh(param->rm_namelen), le32toh(param->rm_type), le32toh(param->rm_valueoffset), le32toh(param->rm_valuelen))); rval = urndis_ctrl_set(un, OID_GEN_RNDIS_CONFIG_PARAMETER, param, tlen); kmem_free(param, tlen); if (rval != RNDIS_STATUS_SUCCESS) printf("%s: set param failed %#x\n", DEVNAME(un), rval); return rval; } /* XXX : adrreset, get it from response */ static uint32_t urndis_ctrl_reset(struct usbnet *un) { struct rndis_reset_req *reset; uint32_t rval; struct rndis_comp_hdr *hdr; reset = kmem_alloc(sizeof(*reset), KM_SLEEP); reset->rm_type = htole32(REMOTE_NDIS_RESET_MSG); reset->rm_len = htole32(sizeof(*reset)); reset->rm_rid = 0; /* XXX rm_rid == reserved ... remove ? */ DPRINTF(("%s: urndis_ctrl_reset send: type %u len %u rid %u\n", DEVNAME(un), le32toh(reset->rm_type), le32toh(reset->rm_len), le32toh(reset->rm_rid))); rval = urndis_ctrl_send(un, reset, sizeof(*reset)); kmem_free(reset, sizeof(*reset)); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: reset failed\n", DEVNAME(un)); return rval; } if ((hdr = urndis_ctrl_recv(un)) == NULL) { printf("%s: unable to get reset response\n", DEVNAME(un)); return RNDIS_STATUS_FAILURE; } rval = urndis_ctrl_handle(un, hdr, NULL, NULL); return rval; } static uint32_t urndis_ctrl_keepalive(struct usbnet *un) { struct rndis_keepalive_req *keep; uint32_t rval; struct rndis_comp_hdr *hdr; keep = kmem_alloc(sizeof(*keep), KM_SLEEP); keep->rm_type = htole32(REMOTE_NDIS_KEEPALIVE_MSG); keep->rm_len = htole32(sizeof(*keep)); keep->rm_rid = 0; /* XXX rm_rid == reserved ... remove ? */ DPRINTF(("%s: urndis_ctrl_keepalive: type %u len %u rid %u\n", DEVNAME(un), le32toh(keep->rm_type), le32toh(keep->rm_len), le32toh(keep->rm_rid))); rval = urndis_ctrl_send(un, keep, sizeof(*keep)); kmem_free(keep, sizeof(*keep)); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: keepalive failed\n", DEVNAME(un)); return rval; } if ((hdr = urndis_ctrl_recv(un)) == NULL) { printf("%s: unable to get keepalive response\n", DEVNAME(un)); return RNDIS_STATUS_FAILURE; } rval = urndis_ctrl_handle(un, hdr, NULL, NULL); if (rval != RNDIS_STATUS_SUCCESS) { printf("%s: keepalive failed %#x\n", DEVNAME(un), rval); urndis_ctrl_reset(un); } return rval; } #endif static unsigned urndis_uno_tx_prepare(struct usbnet *un, struct mbuf *m, struct usbnet_chain *c) { struct rndis_packet_msg *msg; if ((unsigned)m->m_pkthdr.len > un->un_tx_bufsz - sizeof(*msg)) return 0; msg = (struct rndis_packet_msg *)c->unc_buf; memset(msg, 0, sizeof(*msg)); msg->rm_type = htole32(REMOTE_NDIS_PACKET_MSG); msg->rm_len = htole32(sizeof(*msg) + m->m_pkthdr.len); msg->rm_dataoffset = htole32(RNDIS_DATA_OFFSET); msg->rm_datalen = htole32(m->m_pkthdr.len); m_copydata(m, 0, m->m_pkthdr.len, ((char*)msg + RNDIS_DATA_OFFSET + RNDIS_HEADER_OFFSET)); DPRINTF(("%s: %s type %#x len %u data(off %u len %u)\n", __func__, DEVNAME(un), le32toh(msg->rm_type), le32toh(msg->rm_len), le32toh(msg->rm_dataoffset), le32toh(msg->rm_datalen))); return le32toh(msg->rm_len); } static void urndis_uno_rx_loop(struct usbnet * un, struct usbnet_chain *c, uint32_t total_len) { struct rndis_packet_msg *msg; struct ifnet *ifp = usbnet_ifp(un); int offset; offset = 0; while (total_len > 1) { msg = (struct rndis_packet_msg *)((char*)c->unc_buf + offset); DPRINTF(("%s: %s buffer size left %u\n", DEVNAME(un), __func__, total_len)); if (total_len < sizeof(*msg)) { printf("%s: urndis_decap invalid buffer total_len %u < " "minimum header %zu\n", DEVNAME(un), total_len, sizeof(*msg)); return; } DPRINTF(("%s: urndis_decap total_len %u data(off:%u len:%u) " "oobdata(off:%u len:%u nb:%u) perpacket(off:%u len:%u)\n", DEVNAME(un), le32toh(msg->rm_len), le32toh(msg->rm_dataoffset), le32toh(msg->rm_datalen), le32toh(msg->rm_oobdataoffset), le32toh(msg->rm_oobdatalen), le32toh(msg->rm_oobdataelements), le32toh(msg->rm_pktinfooffset), le32toh(msg->rm_pktinfooffset))); if (le32toh(msg->rm_type) != REMOTE_NDIS_PACKET_MSG) { printf("%s: urndis_decap invalid type %#x != %#x\n", DEVNAME(un), le32toh(msg->rm_type), REMOTE_NDIS_PACKET_MSG); return; } if (le32toh(msg->rm_len) < sizeof(*msg)) { printf("%s: urndis_decap invalid msg len %u < %zu\n", DEVNAME(un), le32toh(msg->rm_len), sizeof(*msg)); return; } if (le32toh(msg->rm_len) > total_len) { printf("%s: urndis_decap invalid msg len %u > buffer " "total_len %u\n", DEVNAME(un), le32toh(msg->rm_len), total_len); return; } if (le32toh(msg->rm_dataoffset) + le32toh(msg->rm_datalen) + RNDIS_HEADER_OFFSET > le32toh(msg->rm_len)) { printf("%s: urndis_decap invalid data " "len/offset/end_position(%u/%u/%u) -> " "go out of receive buffer limit %u\n", DEVNAME(un), le32toh(msg->rm_datalen), le32toh(msg->rm_dataoffset), le32toh(msg->rm_dataoffset) + le32toh(msg->rm_datalen) + (uint32_t)RNDIS_HEADER_OFFSET, le32toh(msg->rm_len)); return; } if (le32toh(msg->rm_datalen) < sizeof(struct ether_header)) { if_statinc(ifp, if_ierrors); printf("%s: urndis_decap invalid ethernet size " "%d < %zu\n", DEVNAME(un), le32toh(msg->rm_datalen), sizeof(struct ether_header)); return; } usbnet_enqueue(un, ((char*)&msg->rm_dataoffset + le32toh(msg->rm_dataoffset)), le32toh(msg->rm_datalen), 0, 0, 0); offset += le32toh(msg->rm_len); total_len -= le32toh(msg->rm_len); } } #if 0 static void urndis_watchdog(struct ifnet *ifp) { struct urndis_softc *sc = usbnet_softc(un); if (un->un_dying) return; if_statinc(ifp, if_oerrors); printf("%s: watchdog timeout\n", DEVNAME(un)); urndis_ctrl_keepalive(un); } #endif static int urndis_uno_init(struct ifnet *ifp) { struct usbnet *un = ifp->if_softc; KASSERT(IFNET_LOCKED(ifp)); if (urndis_ctrl_init(un) != RNDIS_STATUS_SUCCESS) return EIO; return 0; } static int urndis_match(device_t parent, cfdata_t match, void *aux) { struct usbif_attach_arg *uiaa = aux; usb_interface_descriptor_t *id; if (!uiaa->uiaa_iface) return UMATCH_NONE; id = usbd_get_interface_descriptor(uiaa->uiaa_iface); if (id == NULL) return UMATCH_NONE; if (id->bInterfaceClass == UICLASS_WIRELESS && id->bInterfaceSubClass == UISUBCLASS_RF && id->bInterfaceProtocol == UIPROTO_RNDIS) return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; return usb_lookup(urndis_devs, uiaa->uiaa_vendor, uiaa->uiaa_product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE; } static void urndis_attach(device_t parent, device_t self, void *aux) { struct urndis_softc *sc = device_private(self); struct usbnet * const un = &sc->sc_un; struct usbif_attach_arg *uiaa = aux; struct usbd_device *dev = uiaa->uiaa_device; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; usb_config_descriptor_t *cd; struct usbd_interface *iface_ctl; const usb_cdc_union_descriptor_t *ud; const usb_cdc_header_descriptor_t *desc; const usb_interface_assoc_descriptor_t *ad; usbd_desc_iter_t iter; int if_ctl, if_data, if_data_ia; int i, j, altcnt; void *buf; size_t bufsz; uint32_t filter; char *devinfop; KASSERT((void *)sc == un); aprint_naive("\n"); aprint_normal("\n"); devinfop = usbd_devinfo_alloc(dev, 0); aprint_normal_dev(self, "%s\n", devinfop); usbd_devinfo_free(devinfop); un->un_dev = self; un->un_udev = dev; un->un_sc = sc; un->un_ops = &urndis_ops; un->un_rx_xfer_flags = USBD_SHORT_XFER_OK; un->un_tx_xfer_flags = USBD_FORCE_SHORT_XFER; un->un_rx_list_cnt = RNDIS_RX_LIST_CNT; un->un_tx_list_cnt = RNDIS_TX_LIST_CNT; un->un_rx_bufsz = RNDIS_BUFSZ; un->un_tx_bufsz = RNDIS_BUFSZ; iface_ctl = uiaa->uiaa_iface; un->un_iface = uiaa->uiaa_iface; id = usbd_get_interface_descriptor(iface_ctl); if_ctl = id->bInterfaceNumber; sc->sc_ifaceno_ctl = if_ctl; if_data = -1; if_data_ia = -1; /* * Use a matching Interface Association Descriptor * as a fallback if no CDC Union Descriptor is found. */ usb_desc_iter_init(un->un_udev, &iter); while ((desc = (const void *)usb_desc_iter_next(&iter)) != NULL) { if (desc->bDescriptorType == UDESC_INTERFACE_ASSOC) { if (desc->bLength < sizeof(*ad)) continue; ad = (const usb_interface_assoc_descriptor_t *)desc; if (ad->bFirstInterface == if_ctl && ad->bInterfaceCount > 1) if_data_ia = if_ctl + 1; continue; } if (desc->bDescriptorType != UDESC_CS_INTERFACE) { continue; } switch (desc->bDescriptorSubtype) { case UDESCSUB_CDC_UNION: /* XXX bail out when found first? */ ud = (const usb_cdc_union_descriptor_t *)desc; if (if_data == -1) if_data = ud->bSlaveInterface[0]; break; } } if (if_data == -1 && if_data_ia != -1) if_data = if_data_ia; if (if_data == -1) { DPRINTF(("urndis_attach: no union interface\n")); un->un_iface = iface_ctl; } else { DPRINTF(("urndis_attach: union interface: ctl %u, data %u\n", if_ctl, if_data)); for (i = 0; i < uiaa->uiaa_nifaces; i++) { if (uiaa->uiaa_ifaces[i] != NULL) { id = usbd_get_interface_descriptor( uiaa->uiaa_ifaces[i]); if (id != NULL && id->bInterfaceNumber == if_data) { un->un_iface = uiaa->uiaa_ifaces[i]; uiaa->uiaa_ifaces[i] = NULL; } } } } if (un->un_iface == NULL) { aprint_error("%s: no data interface\n", DEVNAME(un)); return; } id = usbd_get_interface_descriptor(un->un_iface); cd = usbd_get_config_descriptor(un->un_udev); altcnt = usbd_get_no_alts(cd, id->bInterfaceNumber); for (j = 0; j < altcnt; j++) { if (usbd_set_interface(un->un_iface, j)) { aprint_error("%s: interface alternate setting %u " "failed\n", DEVNAME(un), j); return; } /* Find endpoints. */ id = usbd_get_interface_descriptor(un->un_iface); un->un_ed[USBNET_ENDPT_RX] = un->un_ed[USBNET_ENDPT_TX] = 0; for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor( un->un_iface, i); if (!ed) { aprint_error("%s: no descriptor for bulk " "endpoint %u\n", DEVNAME(un), i); return; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { un->un_ed[USBNET_ENDPT_RX] = ed->bEndpointAddress; } else if ( UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { un->un_ed[USBNET_ENDPT_TX] = ed->bEndpointAddress; } } if (un->un_ed[USBNET_ENDPT_RX] != 0 && un->un_ed[USBNET_ENDPT_TX] != 0) { DPRINTF(("%s: in=%#x, out=%#x\n", DEVNAME(un), un->un_ed[USBNET_ENDPT_RX], un->un_ed[USBNET_ENDPT_TX])); break; } } if (un->un_ed[USBNET_ENDPT_RX] == 0) aprint_error("%s: could not find data bulk in\n", DEVNAME(un)); if (un->un_ed[USBNET_ENDPT_TX] == 0) aprint_error("%s: could not find data bulk out\n",DEVNAME(un)); if (un->un_ed[USBNET_ENDPT_RX] == 0 || un->un_ed[USBNET_ENDPT_TX] == 0) return; #if 0 ifp->if_watchdog = urndis_watchdog; #endif usbnet_attach(un); if (urndis_ctrl_init(un) != RNDIS_STATUS_SUCCESS) { aprint_error("%s: unable to initialize hardware\n", DEVNAME(un)); return; } if (urndis_ctrl_query(un, OID_802_3_PERMANENT_ADDRESS, NULL, 0, &buf, &bufsz) != RNDIS_STATUS_SUCCESS) { aprint_error("%s: unable to get hardware address\n", DEVNAME(un)); return; } if (bufsz == ETHER_ADDR_LEN) { memcpy(un->un_eaddr, buf, ETHER_ADDR_LEN); kmem_free(buf, bufsz); } else { aprint_error("%s: invalid address\n", DEVNAME(un)); if (buf && bufsz) kmem_free(buf, bufsz); return; } /* Initialize packet filter */ sc->sc_filter = RNDIS_PACKET_TYPE_BROADCAST; sc->sc_filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST; filter = htole32(sc->sc_filter); if (urndis_ctrl_set(un, OID_GEN_CURRENT_PACKET_FILTER, &filter, sizeof(filter)) != RNDIS_STATUS_SUCCESS) { aprint_error("%s: unable to set data filters\n", DEVNAME(un)); return; } usbnet_attach_ifp(un, IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST, 0, NULL); } #ifdef _MODULE #include "ioconf.c" #endif USBNET_MODULE(urndis)