usb: real freebsd32 support for most ioctls
Use thunks or alternative access methods to support ioctls without the COMPAT_32BIT hacks that store pointers in uint64_t's on 32-bit platforms. This should allow a normal i386 libusb to work. On CheriBSD, the sizes of the structs will differ between CheriABI (the default) and freebsd64 no matter what so we need proper compat support there. This change paves the way. Reviewed by: hselasky, jrtc27 (prior version)
This commit is contained in:
parent
16f02a4cb4
commit
45b48cbc2b
@ -41,6 +41,9 @@ __FBSDID("$FreeBSD$");
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#include "opt_hid.h"
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#include <sys/param.h>
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#ifdef COMPAT_FREEBSD32
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#include <sys/abi_compat.h>
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#endif
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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@ -115,6 +118,31 @@ struct hidraw_softc {
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struct cdev *dev;
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};
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#ifdef COMPAT_FREEBSD32
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struct hidraw_gen_descriptor32 {
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uint32_t hgd_data; /* void * */
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uint16_t hgd_lang_id;
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uint16_t hgd_maxlen;
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uint16_t hgd_actlen;
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uint16_t hgd_offset;
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uint8_t hgd_config_index;
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uint8_t hgd_string_index;
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uint8_t hgd_iface_index;
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uint8_t hgd_altif_index;
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uint8_t hgd_endpt_index;
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uint8_t hgd_report_type;
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uint8_t reserved[8];
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};
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#define HIDRAW_GET_REPORT_DESC32 \
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_IOC_NEWTYPE(HIDRAW_GET_REPORT_DESC, struct hidraw_gen_descriptor32)
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#define HIDRAW_GET_REPORT32 \
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_IOC_NEWTYPE(HIDRAW_GET_REPORT, struct hidraw_gen_descriptor32)
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#define HIDRAW_SET_REPORT_DESC32 \
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_IOC_NEWTYPE(HIDRAW_SET_REPORT_DESC, struct hidraw_gen_descriptor32)
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#define HIDRAW_SET_REPORT32 \
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_IOC_NEWTYPE(HIDRAW_SET_REPORT, struct hidraw_gen_descriptor32)
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#endif
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static d_open_t hidraw_open;
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static d_read_t hidraw_read;
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static d_write_t hidraw_write;
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@ -507,11 +535,35 @@ hidraw_write(struct cdev *dev, struct uio *uio, int flag)
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return (error);
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}
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#ifdef COMPAT_FREEBSD32
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static void
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update_hgd32(const struct hidraw_gen_descriptor *hgd,
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struct hidraw_gen_descriptor32 *hgd32)
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{
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/* Don't update hgd_data pointer */
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CP(*hgd, *hgd32, hgd_lang_id);
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CP(*hgd, *hgd32, hgd_maxlen);
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CP(*hgd, *hgd32, hgd_actlen);
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CP(*hgd, *hgd32, hgd_offset);
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CP(*hgd, *hgd32, hgd_config_index);
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CP(*hgd, *hgd32, hgd_string_index);
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CP(*hgd, *hgd32, hgd_iface_index);
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CP(*hgd, *hgd32, hgd_altif_index);
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CP(*hgd, *hgd32, hgd_endpt_index);
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CP(*hgd, *hgd32, hgd_report_type);
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/* Don't update reserved */
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}
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#endif
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static int
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hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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struct thread *td)
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{
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uint8_t local_buf[HIDRAW_LOCAL_BUFSIZE];
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#ifdef COMPAT_FREEBSD32
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struct hidraw_gen_descriptor local_hgd;
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struct hidraw_gen_descriptor32 *hgd32 = NULL;
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#endif
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void *buf;
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struct hidraw_softc *sc;
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struct hidraw_gen_descriptor *hgd;
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@ -527,6 +579,32 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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if (sc == NULL)
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return (EIO);
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#ifdef COMPAT_FREEBSD32
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hgd = (struct hidraw_gen_descriptor *)addr;
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switch (cmd) {
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case HIDRAW_GET_REPORT_DESC32:
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case HIDRAW_GET_REPORT32:
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case HIDRAW_SET_REPORT_DESC32:
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case HIDRAW_SET_REPORT32:
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cmd = _IOC_NEWTYPE(cmd, struct hidraw_gen_descriptor);
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hgd32 = (struct hidraw_gen_descriptor32 *)addr;
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hgd = &local_hgd;
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PTRIN_CP(*hgd32, *hgd, hgd_data);
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CP(*hgd32, *hgd, hgd_lang_id);
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CP(*hgd32, *hgd, hgd_maxlen);
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CP(*hgd32, *hgd, hgd_actlen);
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CP(*hgd32, *hgd, hgd_offset);
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CP(*hgd32, *hgd, hgd_config_index);
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CP(*hgd32, *hgd, hgd_string_index);
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CP(*hgd32, *hgd, hgd_iface_index);
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CP(*hgd32, *hgd, hgd_altif_index);
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CP(*hgd32, *hgd, hgd_endpt_index);
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CP(*hgd32, *hgd, hgd_report_type);
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/* Don't copy reserved */
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break;
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}
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#endif
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/* fixed-length ioctls handling */
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switch (cmd) {
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case FIONBIO:
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@ -562,15 +640,19 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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mtx_lock(&sc->sc_mtx);
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sc->sc_state.uhid = true;
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mtx_unlock(&sc->sc_mtx);
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hgd = (struct hidraw_gen_descriptor *)addr;
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if (sc->sc_rdesc->len > hgd->hgd_maxlen) {
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size = hgd->hgd_maxlen;
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} else {
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size = sc->sc_rdesc->len;
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}
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hgd->hgd_actlen = size;
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#ifdef COMPAT_FREEBSD32
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if (hgd32 != NULL)
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update_hgd32(hgd, hgd32);
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#endif
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if (hgd->hgd_data == NULL)
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return (0); /* descriptor length only */
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return (copyout(sc->sc_rdesc->data, hgd->hgd_data, size));
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@ -593,7 +675,6 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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if (error != 0)
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return(error);
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hgd = (struct hidraw_gen_descriptor *)addr;
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buf = HIDRAW_LOCAL_ALLOC(local_buf, hgd->hgd_maxlen);
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copyin(hgd->hgd_data, buf, hgd->hgd_maxlen);
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/* Lock newbus around set_report_descr call */
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@ -640,7 +721,6 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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case HIDRAW_GET_REPORT:
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if (!(sc->sc_fflags & FREAD))
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return (EPERM);
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hgd = (struct hidraw_gen_descriptor *)addr;
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switch (hgd->hgd_report_type) {
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case HID_INPUT_REPORT:
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size = sc->sc_rdesc->isize;
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@ -666,12 +746,17 @@ hidraw_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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if (!error)
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error = copyout(buf, hgd->hgd_data, size);
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HIDRAW_LOCAL_FREE(local_buf, buf);
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#ifdef COMPAT_FREEBSD32
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/*
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* HIDRAW_GET_REPORT is declared _IOWR, but hgd is not written
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* so we don't call update_hgd32().
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*/
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#endif
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return (error);
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case HIDRAW_SET_REPORT:
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if (!(sc->sc_fflags & FWRITE))
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return (EPERM);
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hgd = (struct hidraw_gen_descriptor *)addr;
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switch (hgd->hgd_report_type) {
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case HID_INPUT_REPORT:
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size = sc->sc_rdesc->isize;
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@ -550,13 +550,30 @@ uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
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{
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struct uhid_softc *sc = usb_fifo_softc(fifo);
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struct usb_gen_descriptor *ugd;
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#ifdef COMPAT_FREEBSD32
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struct usb_gen_descriptor local_ugd;
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struct usb_gen_descriptor32 *ugd32 = NULL;
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#endif
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uint32_t size;
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int error = 0;
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uint8_t id;
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ugd = addr;
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#ifdef COMPAT_FREEBSD32
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switch (cmd) {
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case USB_GET_REPORT_DESC32:
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case USB_GET_REPORT32:
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case USB_SET_REPORT32:
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ugd32 = addr;
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ugd = &local_ugd;
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usb_gen_descriptor_from32(ugd, ugd32);
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cmd = _IOC_NEWTYPE(cmd, struct usb_gen_descriptor);
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break;
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}
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#endif
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switch (cmd) {
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case USB_GET_REPORT_DESC:
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ugd = addr;
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if (sc->sc_repdesc_size > ugd->ugd_maxlen) {
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size = ugd->ugd_maxlen;
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} else {
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@ -596,7 +613,6 @@ uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
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error = EPERM;
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break;
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}
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ugd = addr;
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switch (ugd->ugd_report_type) {
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case UHID_INPUT_REPORT:
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size = sc->sc_isize;
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@ -624,7 +640,6 @@ uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
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error = EPERM;
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break;
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}
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ugd = addr;
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switch (ugd->ugd_report_type) {
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case UHID_INPUT_REPORT:
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size = sc->sc_isize;
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@ -655,6 +670,10 @@ uhid_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
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error = ENOIOCTL;
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break;
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}
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#ifdef COMPAT_FREEBSD32
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if (ugd32 != NULL)
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update_usb_gen_descriptor32(ugd32, ugd);
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#endif
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return (error);
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}
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@ -281,13 +281,30 @@ uhid_snes_ioctl(struct usb_fifo *fifo, u_long cmd, void *data, int fflags)
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{
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struct uhid_snes_softc *sc = usb_fifo_softc(fifo);
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struct usb_gen_descriptor *ugd;
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#ifdef COMPAT_FREEBSD32
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struct usb_gen_descriptor local_ugd;
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struct usb_gen_descriptor32 *ugd32 = NULL;
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#endif
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uint32_t size;
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int error = 0;
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uint8_t id;
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ugd = data;
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#ifdef COMPAT_FREEBSD32
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switch (cmd) {
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case USB_GET_REPORT_DESC32:
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case USB_GET_REPORT32:
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case USB_SET_REPORT32:
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ugd32 = data;
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ugd = &local_ugd;
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usb_gen_descriptor_from32(ugd, ugd32);
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cmd = _IOC_NEWTYPE(cmd, struct usb_gen_descriptor);
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break;
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}
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#endif
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switch (cmd) {
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case USB_GET_REPORT_DESC:
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ugd = data;
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if (sc->sc_repdesc_size > ugd->ugd_maxlen) {
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size = ugd->ugd_maxlen;
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} else {
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@ -328,7 +345,6 @@ uhid_snes_ioctl(struct usb_fifo *fifo, u_long cmd, void *data, int fflags)
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error = EPERM;
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break;
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}
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ugd = data;
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switch (ugd->ugd_report_type) {
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case UHID_INPUT_REPORT:
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size = sc->sc_isize;
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@ -356,7 +372,6 @@ uhid_snes_ioctl(struct usb_fifo *fifo, u_long cmd, void *data, int fflags)
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error = EPERM;
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break;
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}
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ugd = data;
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switch (ugd->ugd_report_type) {
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case UHID_INPUT_REPORT:
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size = sc->sc_isize;
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@ -388,6 +403,11 @@ uhid_snes_ioctl(struct usb_fifo *fifo, u_long cmd, void *data, int fflags)
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error = EINVAL;
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break;
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}
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#ifdef COMPAT_FREEBSD32
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if (ugd32 != NULL)
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update_usb_gen_descriptor32(ugd32, ugd);
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#endif
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return (error);
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}
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@ -32,6 +32,9 @@
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#ifdef USB_GLOBAL_INCLUDE_FILE
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#include USB_GLOBAL_INCLUDE_FILE
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#else
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#ifdef COMPAT_FREEBSD32
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#include <sys/abi_compat.h>
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#endif
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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@ -1650,6 +1653,9 @@ usb_static_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
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{
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union {
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struct usb_read_dir *urd;
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#ifdef COMPAT_FREEBSD32
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struct usb_read_dir32 *urd32;
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#endif
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void* data;
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} u;
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int err;
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@ -1660,6 +1666,12 @@ usb_static_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
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err = usb_read_symlink(u.urd->urd_data,
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u.urd->urd_startentry, u.urd->urd_maxlen);
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break;
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#ifdef COMPAT_FREEBSD32
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case USB_READ_DIR32:
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err = usb_read_symlink(PTRIN(u.urd32->urd_data),
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u.urd32->urd_startentry, u.urd32->urd_maxlen);
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break;
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#endif
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case USB_DEV_QUIRK_GET:
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case USB_QUIRK_NAME_GET:
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case USB_DEV_QUIRK_ADD:
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@ -29,6 +29,9 @@
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#ifdef USB_GLOBAL_INCLUDE_FILE
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#include USB_GLOBAL_INCLUDE_FILE
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#else
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#ifdef COMPAT_FREEBSD32
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#include <sys/abi_compat.h>
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#endif
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#include <sys/stdint.h>
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#include <sys/stddef.h>
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#include <sys/param.h>
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@ -109,6 +112,9 @@ static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t);
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static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *);
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static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *);
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static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd);
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#ifdef COMPAT_FREEBSD32
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static int ugen_get32(u_long cmd, struct usb_fifo *f, struct usb_gen_descriptor32 *ugd32);
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#endif
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static int ugen_re_enumerate(struct usb_fifo *);
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static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int);
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static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *);
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@ -943,6 +949,31 @@ ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
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return (error);
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}
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#ifdef COMPAT_FREEBSD32
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static int
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ugen_do_request32(struct usb_fifo *f, struct usb_ctl_request32 *ur32)
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{
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struct usb_ctl_request ur;
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int error;
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PTRIN_CP(*ur32, ur, ucr_data);
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CP(*ur32, ur, ucr_flags);
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CP(*ur32, ur, ucr_actlen);
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CP(*ur32, ur, ucr_addr);
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CP(*ur32, ur, ucr_request);
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error = ugen_do_request(f, &ur);
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/* Don't update ucr_data pointer */
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CP(ur, *ur32, ucr_flags);
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CP(ur, *ur32, ucr_actlen);
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CP(ur, *ur32, ucr_addr);
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CP(ur, *ur32, ucr_request);
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return (error);
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}
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#endif
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/*------------------------------------------------------------------------
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* ugen_re_enumerate
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*------------------------------------------------------------------------*/
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@ -2192,6 +2223,14 @@ ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
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error = ugen_get_iface_driver(f, addr);
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break;
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#ifdef COMPAT_FREEBSD32
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case USB_GET_FULL_DESC32:
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case USB_GET_STRING_DESC32:
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case USB_GET_IFACE_DRIVER32:
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error = ugen_get32(cmd, f, addr);
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break;
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#endif
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case USB_REQUEST:
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case USB_DO_REQUEST:
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if (!(fflags & FWRITE)) {
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@ -2201,6 +2240,17 @@ ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
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error = ugen_do_request(f, addr);
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break;
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#ifdef COMPAT_FREEBSD32
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case USB_REQUEST32:
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case USB_DO_REQUEST32:
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if (!(fflags & FWRITE)) {
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error = EPERM;
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break;
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}
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error = ugen_do_request32(f, addr);
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break;
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#endif
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case USB_DEVICEINFO:
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case USB_GET_DEVICEINFO:
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error = ugen_fill_deviceinfo(f, addr);
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@ -2363,4 +2413,72 @@ ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
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break;
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}
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}
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#ifdef COMPAT_FREEBSD32
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void
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usb_gen_descriptor_from32(struct usb_gen_descriptor *ugd,
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const struct usb_gen_descriptor32 *ugd32)
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{
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PTRIN_CP(*ugd32, *ugd, ugd_data);
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CP(*ugd32, *ugd, ugd_lang_id);
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CP(*ugd32, *ugd, ugd_maxlen);
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CP(*ugd32, *ugd, ugd_actlen);
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CP(*ugd32, *ugd, ugd_offset);
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CP(*ugd32, *ugd, ugd_config_index);
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CP(*ugd32, *ugd, ugd_string_index);
|
||||
CP(*ugd32, *ugd, ugd_iface_index);
|
||||
CP(*ugd32, *ugd, ugd_altif_index);
|
||||
CP(*ugd32, *ugd, ugd_endpt_index);
|
||||
CP(*ugd32, *ugd, ugd_report_type);
|
||||
/* Don't copy reserved */
|
||||
}
|
||||
|
||||
void
|
||||
update_usb_gen_descriptor32(struct usb_gen_descriptor32 *ugd32,
|
||||
struct usb_gen_descriptor *ugd)
|
||||
{
|
||||
/* Don't update ugd_data pointer */
|
||||
CP(*ugd32, *ugd, ugd_lang_id);
|
||||
CP(*ugd32, *ugd, ugd_maxlen);
|
||||
CP(*ugd32, *ugd, ugd_actlen);
|
||||
CP(*ugd32, *ugd, ugd_offset);
|
||||
CP(*ugd32, *ugd, ugd_config_index);
|
||||
CP(*ugd32, *ugd, ugd_string_index);
|
||||
CP(*ugd32, *ugd, ugd_iface_index);
|
||||
CP(*ugd32, *ugd, ugd_altif_index);
|
||||
CP(*ugd32, *ugd, ugd_endpt_index);
|
||||
CP(*ugd32, *ugd, ugd_report_type);
|
||||
/* Don't update reserved */
|
||||
}
|
||||
|
||||
static int
|
||||
ugen_get32(u_long cmd, struct usb_fifo *f, struct usb_gen_descriptor32 *ugd32)
|
||||
{
|
||||
struct usb_gen_descriptor ugd;
|
||||
int error;
|
||||
|
||||
usb_gen_descriptor_from32(&ugd, ugd32);
|
||||
switch (cmd) {
|
||||
case USB_GET_FULL_DESC32:
|
||||
error = ugen_get_cdesc(f, &ugd);
|
||||
break;
|
||||
|
||||
case USB_GET_STRING_DESC32:
|
||||
error = ugen_get_sdesc(f, &ugd);
|
||||
break;
|
||||
|
||||
case USB_GET_IFACE_DRIVER32:
|
||||
error = ugen_get_iface_driver(f, &ugd);
|
||||
break;
|
||||
default:
|
||||
/* Can't happen except by programmer error */
|
||||
panic("%s: called with invalid cmd %lx", __func__, cmd);
|
||||
}
|
||||
update_usb_gen_descriptor32(ugd32, &ugd);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
#endif /* COMPAT_FREEBSD32 */
|
||||
|
||||
#endif /* USB_HAVE_UGEN */
|
||||
|
@ -346,4 +346,61 @@ struct usb_gen_quirk {
|
||||
#define USB_DEV_QUIRK_ADD _IOW ('Q', 2, struct usb_gen_quirk)
|
||||
#define USB_DEV_QUIRK_REMOVE _IOW ('Q', 3, struct usb_gen_quirk)
|
||||
|
||||
#ifdef _KERNEL
|
||||
#ifdef COMPAT_FREEBSD32
|
||||
|
||||
struct usb_read_dir32 {
|
||||
uint32_t urd_data;
|
||||
uint32_t urd_startentry;
|
||||
uint32_t urd_maxlen;
|
||||
};
|
||||
#define USB_READ_DIR32 \
|
||||
_IOC_NEWTYPE(USB_READ_DIR, struct usb_read_dir32)
|
||||
|
||||
struct usb_ctl_request32 {
|
||||
uint32_t ucr_data;
|
||||
uint16_t ucr_flags;
|
||||
uint16_t ucr_actlen;
|
||||
uint8_t ucr_addr;
|
||||
struct usb_device_request ucr_request;
|
||||
};
|
||||
#define USB_REQUEST32 _IOC_NEWTYPE(USB_REQUEST, struct usb_ctl_request32)
|
||||
#define USB_DO_REQUEST32 _IOC_NEWTYPE(USB_DO_REQUEST, struct usb_ctl_request32)
|
||||
|
||||
struct usb_gen_descriptor32 {
|
||||
uint32_t ugd_data; /* void * */
|
||||
uint16_t ugd_lang_id;
|
||||
uint16_t ugd_maxlen;
|
||||
uint16_t ugd_actlen;
|
||||
uint16_t ugd_offset;
|
||||
uint8_t ugd_config_index;
|
||||
uint8_t ugd_string_index;
|
||||
uint8_t ugd_iface_index;
|
||||
uint8_t ugd_altif_index;
|
||||
uint8_t ugd_endpt_index;
|
||||
uint8_t ugd_report_type;
|
||||
uint8_t reserved[8];
|
||||
};
|
||||
|
||||
#define USB_GET_REPORT_DESC32 \
|
||||
_IOC_NEWTYPE(USB_GET_REPORT_DESC, struct usb_gen_descriptor32)
|
||||
#define USB_GET_REPORT32 \
|
||||
_IOC_NEWTYPE(USB_GET_REPORT, struct usb_gen_descriptor32)
|
||||
#define USB_SET_REPORT32 \
|
||||
_IOC_NEWTYPE(USB_SET_REPORT, struct usb_gen_descriptor32)
|
||||
#define USB_GET_FULL_DESC32 \
|
||||
_IOC_NEWTYPE(USB_GET_FULL_DESC, struct usb_gen_descriptor32)
|
||||
#define USB_GET_STRING_DESC32 \
|
||||
_IOC_NEWTYPE(USB_GET_STRING_DESC, struct usb_gen_descriptor32)
|
||||
#define USB_GET_IFACE_DRIVER32 \
|
||||
_IOC_NEWTYPE(USB_GET_IFACE_DRIVER, struct usb_gen_descriptor32)
|
||||
|
||||
void usb_gen_descriptor_from32(struct usb_gen_descriptor *ugd,
|
||||
const struct usb_gen_descriptor32 *ugd32);
|
||||
void update_usb_gen_descriptor32(struct usb_gen_descriptor32 *ugd32,
|
||||
struct usb_gen_descriptor *ugd);
|
||||
|
||||
#endif /* COMPAT_FREEBSD32 */
|
||||
#endif /* _KERNEL */
|
||||
|
||||
#endif /* _USB_IOCTL_H_ */
|
||||
|
Loading…
Reference in New Issue
Block a user