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NetBSD/sys/compat/ndis/subr_ndis.c

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/*-
* Copyright (c) 2003
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifdef __FreeBSD__
__FBSDID("$FreeBSD: src/sys/compat/ndis/subr_ndis.c,v 1.67.2.7 2005/03/31 21:50:11 wpaul Exp $");
#endif
#ifdef __NetBSD__
__KERNEL_RCSID(0, "$NetBSD: subr_ndis.c,v 1.23 2010/07/26 22:33:23 jym Exp $");
#endif
/*
* This file implements a translation layer between the BSD networking
* infrasturcture and Windows(R) NDIS network driver modules. A Windows
* NDIS driver calls into several functions in the NDIS.SYS Windows
* kernel module and exports a table of functions designed to be called
* by the NDIS subsystem. Using the PE loader, we can patch our own
* versions of the NDIS routines into a given Windows driver module and
* convince the driver that it is in fact running on Windows.
*
* We provide a table of all our implemented NDIS routines which is patched
* into the driver object code. All our exported routines must use the
* _stdcall calling convention, since that's what the Windows object code
* expects.
*/
#ifdef __FreeBSD__
#include <sys/ctype.h>
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#ifdef __FreeBSD__
#include <sys/mutex.h>
#endif
#include <sys/socket.h>
#include <sys/sysctl.h>
#ifdef __FreeBSD__
#include <sys/timespec.h>
#include <sys/smp.h>
#endif
#include <sys/queue.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/namei.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <sys/kthread.h>
#ifdef __FreeBSD__
#include <sys/linker.h>
#include <sys/sysproto.h>
#endif
#include <sys/mount.h>
#include <net/if.h>
#include <net/if_arp.h>
#ifdef __FreeBSD__
#include <net/ethernet.h>
#else
#include <net/if_ether.h>
#endif
#include <net/if_dl.h>
#include <net/if_media.h>
#include <sys/atomic.h>
#ifdef __FreeBSD__
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#endif
#include <sys/bus.h>
#include <machine/stdarg.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <compat/ndis/pe_var.h>
#include <compat/ndis/resource_var.h>
#include <compat/ndis/ntoskrnl_var.h>
#include <compat/ndis/hal_var.h>
#include <compat/ndis/ndis_var.h>
#include <compat/ndis/cfg_var.h>
#include <dev/if_ndis/if_ndisvar.h>
#ifdef __NetBSD__
#include "nbcompat.h"
#endif
#ifdef __NetBSD__
#define PN(name) /* printf(#name "\n"); */
#endif
static char ndis_filepath[MAXPATHLEN];
extern struct nd_head ndis_devhead;
#ifdef __FreeBSD__
SYSCTL_STRING(_hw, OID_AUTO, ndis_filepath, CTLFLAG_RW, ndis_filepath,
MAXPATHLEN, "Path used by NdisOpenFile() to search for files");
#endif
__stdcall static void NdisInitializeWrapper(ndis_handle *,
driver_object *, void *, void *);
__stdcall static ndis_status NdisMRegisterMiniport(ndis_handle,
ndis_miniport_characteristics *, int);
__stdcall static ndis_status NdisAllocateMemoryWithTag(void **,
uint32_t, uint32_t);
__stdcall static ndis_status NdisAllocateMemory(void **,
uint32_t, uint32_t, ndis_physaddr);
__stdcall static void NdisFreeMemory(void *, uint32_t, uint32_t);
__stdcall static ndis_status NdisMSetAttributesEx(ndis_handle, ndis_handle,
uint32_t, uint32_t, ndis_interface_type);
__stdcall static void NdisOpenConfiguration(ndis_status *,
ndis_handle *, ndis_handle);
__stdcall static void NdisOpenConfigurationKeyByIndex(ndis_status *,
ndis_handle, uint32_t, ndis_unicode_string *, ndis_handle *);
__stdcall static void NdisOpenConfigurationKeyByName(ndis_status *,
ndis_handle, ndis_unicode_string *, ndis_handle *);
#ifdef __FreeBSD__
static ndis_status ndis_encode_parm(ndis_miniport_block *,
struct sysctl_oid *, ndis_parm_type, ndis_config_parm **);
static ndis_status ndis_decode_parm(ndis_miniport_block *,
ndis_config_parm *, char *);
#else /* __NetBSD__ */
static ndis_status ndis_encode_parm(ndis_miniport_block *,
void *, ndis_parm_type, ndis_config_parm **);
#endif
__stdcall static void NdisReadConfiguration(ndis_status *, ndis_config_parm **,
ndis_handle, ndis_unicode_string *, ndis_parm_type);
__stdcall static void NdisWriteConfiguration(ndis_status *, ndis_handle,
ndis_unicode_string *, ndis_config_parm *);
__stdcall static void NdisCloseConfiguration(ndis_handle);
__stdcall static void NdisAllocateSpinLock(ndis_spin_lock *);
__stdcall static void NdisFreeSpinLock(ndis_spin_lock *);
__stdcall static void NdisAcquireSpinLock(ndis_spin_lock *);
__stdcall static void NdisReleaseSpinLock(ndis_spin_lock *);
__stdcall static void NdisDprAcquireSpinLock(ndis_spin_lock *);
__stdcall static void NdisDprReleaseSpinLock(ndis_spin_lock *);
__stdcall static uint32_t NdisReadPciSlotInformation(ndis_handle, uint32_t,
uint32_t, void *, uint32_t);
__stdcall static uint32_t NdisWritePciSlotInformation(ndis_handle, uint32_t,
uint32_t, void *, uint32_t);
static void NdisWriteErrorLogEntry(ndis_handle, ndis_error_code, uint32_t, ...);
static void ndis_map_cb(void *, bus_dma_segment_t *, int, int);
__stdcall static void NdisMStartBufferPhysicalMapping(ndis_handle,
ndis_buffer *, uint32_t, uint8_t, ndis_paddr_unit *, uint32_t *);
__stdcall static void NdisMCompleteBufferPhysicalMapping(ndis_handle,
ndis_buffer *, uint32_t);
__stdcall static void NdisMInitializeTimer(ndis_miniport_timer *, ndis_handle,
ndis_timer_function, void *);
__stdcall static void NdisInitializeTimer(ndis_timer *,
ndis_timer_function, void *);
__stdcall static void NdisSetTimer(ndis_timer *, uint32_t);
__stdcall static void NdisMSetPeriodicTimer(ndis_miniport_timer *, uint32_t);
__stdcall static void NdisMCancelTimer(ndis_timer *, uint8_t *);
__stdcall static void ndis_timercall(kdpc *, ndis_miniport_timer *,
void *, void *);
__stdcall static void NdisMQueryAdapterResources(ndis_status *, ndis_handle,
ndis_resource_list *, uint32_t *);
__stdcall static ndis_status NdisMRegisterIoPortRange(void **,
ndis_handle, uint32_t, uint32_t);
__stdcall static void NdisMDeregisterIoPortRange(ndis_handle,
uint32_t, uint32_t, void *);
__stdcall static void NdisReadNetworkAddress(ndis_status *, void **,
uint32_t *, ndis_handle);
__stdcall static ndis_status NdisQueryMapRegisterCount(uint32_t, uint32_t *);
__stdcall static ndis_status NdisMAllocateMapRegisters(ndis_handle,
uint32_t, uint8_t, uint32_t, uint32_t);
__stdcall static void NdisMFreeMapRegisters(ndis_handle);
static void ndis_mapshared_cb(void *, bus_dma_segment_t *, int, int);
__stdcall static void NdisMAllocateSharedMemory(ndis_handle, uint32_t,
uint8_t, void **, ndis_physaddr *);
static void ndis_asyncmem_complete(void *);
__stdcall static ndis_status NdisMAllocateSharedMemoryAsync(ndis_handle,
uint32_t, uint8_t, void *);
__stdcall static void NdisMFreeSharedMemory(ndis_handle, uint32_t,
uint8_t, void *, ndis_physaddr);
__stdcall static ndis_status NdisMMapIoSpace(void **, ndis_handle,
ndis_physaddr, uint32_t);
__stdcall static void NdisMUnmapIoSpace(ndis_handle, void *, uint32_t);
__stdcall static uint32_t NdisGetCacheFillSize(void);
__stdcall static uint32_t NdisMGetDmaAlignment(ndis_handle);
__stdcall static ndis_status NdisMInitializeScatterGatherDma(ndis_handle,
uint8_t, uint32_t);
__stdcall static void NdisUnchainBufferAtFront(ndis_packet *, ndis_buffer **);
__stdcall static void NdisUnchainBufferAtBack(ndis_packet *, ndis_buffer **);
__stdcall static void NdisAllocateBufferPool(ndis_status *,
ndis_handle *, uint32_t);
__stdcall static void NdisFreeBufferPool(ndis_handle);
__stdcall static void NdisAllocateBuffer(ndis_status *, ndis_buffer **,
ndis_handle, void *, uint32_t);
__stdcall static void NdisFreeBuffer(ndis_buffer *);
__stdcall static uint32_t NdisBufferLength(ndis_buffer *);
__stdcall static void NdisQueryBuffer(ndis_buffer *, void **, uint32_t *);
__stdcall static void NdisQueryBufferSafe(ndis_buffer *, void **,
uint32_t *, uint32_t);
__stdcall static void *NdisBufferVirtualAddress(ndis_buffer *);
__stdcall static void *NdisBufferVirtualAddressSafe(ndis_buffer *, uint32_t);
__stdcall static void NdisAdjustBufferLength(ndis_buffer *, int);
__stdcall static uint32_t NdisInterlockedIncrement(uint32_t *);
__stdcall static uint32_t NdisInterlockedDecrement(uint32_t *);
__stdcall static void NdisInitializeEvent(ndis_event *);
__stdcall static void NdisSetEvent(ndis_event *);
__stdcall static void NdisResetEvent(ndis_event *);
__stdcall static uint8_t NdisWaitEvent(ndis_event *, uint32_t);
__stdcall static ndis_status NdisUnicodeStringToAnsiString(ndis_ansi_string *,
ndis_unicode_string *);
__stdcall static ndis_status
NdisAnsiStringToUnicodeString(ndis_unicode_string *,
ndis_ansi_string *);
__stdcall static ndis_status NdisMPciAssignResources(ndis_handle,
uint32_t, ndis_resource_list **);
__stdcall static ndis_status NdisMRegisterInterrupt(ndis_miniport_interrupt *,
ndis_handle, uint32_t, uint32_t, uint8_t,
uint8_t, ndis_interrupt_mode);
__stdcall static void NdisMDeregisterInterrupt(ndis_miniport_interrupt *);
__stdcall static void NdisMRegisterAdapterShutdownHandler(ndis_handle, void *,
ndis_shutdown_handler);
__stdcall static void NdisMDeregisterAdapterShutdownHandler(ndis_handle);
__stdcall static uint32_t NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *);
__stdcall static void NdisGetBufferPhysicalArraySize(ndis_buffer *,
uint32_t *);
__stdcall static void NdisQueryBufferOffset(ndis_buffer *,
uint32_t *, uint32_t *);
__stdcall static void NdisMSleep(uint32_t);
__stdcall static uint32_t NdisReadPcmciaAttributeMemory(ndis_handle,
uint32_t, void *, uint32_t);
__stdcall static uint32_t NdisWritePcmciaAttributeMemory(ndis_handle,
uint32_t, void *, uint32_t);
__stdcall static list_entry *NdisInterlockedInsertHeadList(list_entry *,
list_entry *, ndis_spin_lock *);
__stdcall static list_entry *NdisInterlockedRemoveHeadList(list_entry *,
ndis_spin_lock *);
__stdcall static list_entry *NdisInterlockedInsertTailList(list_entry *,
list_entry *, ndis_spin_lock *);
__stdcall static uint8_t
NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *,
void *, void *);
__stdcall static void NdisGetCurrentSystemTime(uint64_t *);
__stdcall static void NdisGetSystemUpTime(uint32_t *);
__stdcall static void NdisInitializeString(ndis_unicode_string *, char *);
__stdcall static void NdisInitAnsiString(ndis_ansi_string *, char *);
__stdcall static void NdisInitUnicodeString(ndis_unicode_string *,
uint16_t *);
__stdcall static void NdisFreeString(ndis_unicode_string *);
__stdcall static ndis_status NdisMRemoveMiniport(ndis_handle *);
__stdcall static void NdisTerminateWrapper(ndis_handle, void *);
__stdcall static void NdisMGetDeviceProperty(ndis_handle, device_object **,
device_object **, device_object **, cm_resource_list *,
cm_resource_list *);
__stdcall static void NdisGetFirstBufferFromPacket(ndis_packet *,
ndis_buffer **, void **, uint32_t *, uint32_t *);
__stdcall static void NdisGetFirstBufferFromPacketSafe(ndis_packet *,
ndis_buffer **, void **, uint32_t *, uint32_t *, uint32_t);
#ifdef __FreeBSD__
static int ndis_find_sym(linker_file_t, char *, char *, void **);
__stdcall static void NdisOpenFile(ndis_status *, ndis_handle *, uint32_t *,
ndis_unicode_string *, ndis_physaddr);
__stdcall static void NdisMapFile(ndis_status *, void **, ndis_handle);
__stdcall static void NdisUnmapFile(ndis_handle);
__stdcall static void NdisCloseFile(ndis_handle);
#endif
__stdcall static uint8_t NdisSystemProcessorCount(void);
__stdcall static void NdisMIndicateStatusComplete(ndis_handle);
__stdcall static void NdisMIndicateStatus(ndis_handle, ndis_status,
void *, uint32_t);
static void ndis_workfunc(void *);
static funcptr ndis_findwrap(funcptr);
__stdcall static ndis_status NdisScheduleWorkItem(ndis_work_item *);
__stdcall static void NdisCopyFromPacketToPacket(ndis_packet *,
uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *);
__stdcall static void NdisCopyFromPacketToPacketSafe(ndis_packet *,
uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *, uint32_t);
__stdcall static ndis_status NdisMRegisterDevice(ndis_handle,
ndis_unicode_string *, ndis_unicode_string *, driver_dispatch **,
void **, ndis_handle *);
__stdcall static ndis_status NdisMDeregisterDevice(ndis_handle);
__stdcall static ndis_status
NdisMQueryAdapterInstanceName(ndis_unicode_string *,
ndis_handle);
__stdcall static void NdisMRegisterUnloadHandler(ndis_handle, void *);
__stdcall static void dummy(void);
/*
* Some really old drivers do not properly check the return value
* from NdisAllocatePacket() and NdisAllocateBuffer() and will
* sometimes allocate few more buffers/packets that they originally
* requested when they created the pool. To prevent this from being
* a problem, we allocate a few extra buffers/packets beyond what
* the driver asks for. This #define controls how many.
*/
#define NDIS_POOL_EXTRA 16
int
ndis_libinit(void)
{
image_patch_table *patch;
strcpy(ndis_filepath, "/compat/ndis");
patch = ndis_functbl;
while (patch->ipt_func != NULL) {
windrv_wrap((funcptr)patch->ipt_func,
(funcptr *)&patch->ipt_wrap);
patch++;
}
return(0);
}
int
ndis_libfini(void)
{
image_patch_table *patch;
patch = ndis_functbl;
while (patch->ipt_func != NULL) {
windrv_unwrap(patch->ipt_wrap);
patch++;
}
return(0);
}
static funcptr
ndis_findwrap(funcptr func)
{
image_patch_table *patch;
patch = ndis_functbl;
while (patch->ipt_func != NULL) {
if ((funcptr)patch->ipt_func == func)
return((funcptr)patch->ipt_wrap);
patch++;
}
return(NULL);
}
/*
* NDIS deals with strings in unicode format, so we have
* do deal with them that way too. For now, we only handle
* conversion between unicode and ASCII since that's all
* that device drivers care about.
*/
int
ndis_ascii_to_unicode(const char *ascii, uint16_t **unicode)
{
uint16_t *ustr;
int i;
if (*unicode == NULL)
*unicode = malloc(strlen(ascii) * 2, M_DEVBUF, M_NOWAIT);
if (*unicode == NULL)
return(ENOMEM);
ustr = *unicode;
for (i = 0; i < strlen(ascii); i++) {
*ustr = (uint16_t)ascii[i];
ustr++;
}
return(0);
}
int
ndis_unicode_to_ascii(uint16_t *unicode, int ulen, char **ascii)
{
uint8_t *astr;
int i;
if (*ascii == NULL)
*ascii = malloc((ulen / 2) + 1, M_DEVBUF, M_NOWAIT|M_ZERO);
if (*ascii == NULL)
return(ENOMEM);
astr = *ascii;
for (i = 0; i < ulen / 2; i++) {
*astr = (uint8_t)unicode[i];
astr++;
}
return(0);
}
/*
* This routine does the messy Windows Driver Model device attachment
* stuff on behalf of NDIS drivers. We register our own AddDevice
* routine here
*/
__stdcall static void
NdisInitializeWrapper(
ndis_handle *wrapper,
driver_object *drv,
void *path,
void *unused)
{
PN(NdisInitializeWrapper)
/*
* As of yet, I haven't come up with a compelling
* reason to define a private NDIS wrapper structure,
* so we use a pointer to the driver object as the
* wrapper handle. The driver object has the miniport
* characteristics struct for this driver hung off it
* via IoAllocateDriverObjectExtension(), and that's
* really all the private data we need.
*/
*wrapper = drv;
/*
* If this was really Windows, we'd be registering dispatch
* routines for the NDIS miniport module here, but we're
* not Windows so all we really need to do is set up an
* AddDevice function that'll be invoked when a new device
* instance appears.
*/
drv->dro_driverext->dre_adddevicefunc = NdisAddDevice;
return;
}
__stdcall static void
NdisTerminateWrapper(
ndis_handle handle,
void *syspec)
{
/* Nothing to see here, move along. */
return;
}
__stdcall static ndis_status
NdisMRegisterMiniport(ndis_handle handle, ndis_miniport_characteristics *characteristics, int len)
{
ndis_miniport_characteristics *pch = NULL;
void *ch = NULL;
driver_object *drv;
PN(NdisMRegisterMiniport);
drv = (driver_object *)handle;
/*
* We need to save the NDIS miniport characteristics
* somewhere. This data is per-driver, not per-device
* (all devices handled by the same driver have the
* same characteristics) so we hook it onto the driver
* object using IoAllocateDriverObjectExtension().
* The extra extension info is automagically deleted when
* the driver is unloaded (see windrv_unload()).
*/
if (IoAllocateDriverObjectExtension(drv, (void *)1,
sizeof(ndis_miniport_characteristics), /*(void **)*/&ch) !=
STATUS_SUCCESS)
return(NDIS_STATUS_RESOURCES);
pch = (ndis_miniport_characteristics *)ch;
memset((char *)pch, 0, sizeof(ndis_miniport_characteristics));
#ifdef __FreeBSD__
memcpy( (char *)pch, (char *)characteristics, len);
#else /* __NetBSD__ */
memcpy(pch, characteristics, len);
#endif
if (pch->nmc_version_major < 5 || pch->nmc_version_minor < 1) {
pch->nmc_shutdown_handler = NULL;
pch->nmc_canceltxpkts_handler = NULL;
pch->nmc_pnpevent_handler = NULL;
}
return(NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisAllocateMemoryWithTag(void **vaddr, uint32_t len, uint32_t tag)
{
void *mem;
mem = ExAllocatePoolWithTag(NonPagedPool, len, tag);
if (mem == NULL)
return(NDIS_STATUS_RESOURCES);
*vaddr = mem;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisAllocateMemory(
void **vaddr,
uint32_t len,
uint32_t flags,
ndis_physaddr highaddr)
{
void *mem;
mem = ExAllocatePoolWithTag(NonPagedPool, len, 0);
if (mem == NULL)
return(NDIS_STATUS_RESOURCES);
*vaddr = mem;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisFreeMemory(
void *vaddr,
uint32_t len,
uint32_t flags)
{
if (len == 0)
return;
ExFreePool(vaddr);
return;
}
__stdcall static ndis_status
NdisMSetAttributesEx(
ndis_handle adapter_handle,
ndis_handle adapter_ctx,
uint32_t hangsecs,
uint32_t flags,
ndis_interface_type iftype)
{
ndis_miniport_block *block;
PN(NdisMSetAttributesEx)
/*
* Save the adapter context, we need it for calling
* the driver's internal functions.
*/
block = (ndis_miniport_block *)adapter_handle;
block->nmb_miniportadapterctx = adapter_ctx;
block->nmb_checkforhangsecs = hangsecs;
block->nmb_flags = flags;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisOpenConfiguration(ndis_status *status, ndis_handle *cfg, ndis_handle wrapctx)
{
PN(NdisOpenConfiguration)
*cfg = wrapctx;
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static void
NdisOpenConfigurationKeyByName(
ndis_status *status,
ndis_handle cfg,
ndis_unicode_string *subkey,
ndis_handle *subhandle)
{
PN(NdisOpenConfiguration)
*subhandle = cfg;
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static void
NdisOpenConfigurationKeyByIndex(
ndis_status *status,
ndis_handle cfg,
uint32_t idx,
ndis_unicode_string *subkey,
ndis_handle *subhandle)
{
*status = NDIS_STATUS_FAILURE;
return;
}
static ndis_status
#ifdef __FreeBSD__
ndis_encode_parm(block, oid, type, parm)
ndis_miniport_block *block;
struct sysctl_oid *oid;
ndis_parm_type type;
ndis_config_parm **parm;
#else /* __NetBSD__ */
ndis_encode_parm(block, data, type, parm)
ndis_miniport_block *block;
void *data;
ndis_parm_type type;
ndis_config_parm **parm;
#endif
{
uint16_t *unicode;
ndis_unicode_string *ustr;
int base = 0;
PN(ndis_encode_parm)
unicode = (uint16_t *)&block->nmb_dummybuf;
switch(type) {
case ndis_parm_string:
#ifdef __FreeBSD__
ndis_ascii_to_unicode((char *)oid->oid_arg1, &unicode);
#else /* __NetBSD__ */
ndis_ascii_to_unicode((char *)data, &unicode);
#endif
(*parm)->ncp_type = ndis_parm_string;
ustr = &(*parm)->ncp_parmdata.ncp_stringdata;
#ifdef __FreeBSD__
ustr->us_len = strlen((char *)oid->oid_arg1) * 2;
#else /* __NetBSD__ */
ustr->us_len = strlen((char *)data) * 2;
#endif
ustr->us_buf = unicode;
break;
case ndis_parm_int:
#ifdef __FreeBSD__
if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0) {
#else /* __NetBSD__ */
if (strncmp((char *)data, "0x", 2) == 0) {
#endif
base = 16;
}
else
base = 10;
(*parm)->ncp_type = ndis_parm_int;
(*parm)->ncp_parmdata.ncp_intdata =
#ifdef __FreeBSD__
strtol((char *)oid->oid_arg1, NULL, base);
#else /* __NetBSD__ */
/* TODO: NetBSD dosen't seem to have a strtol in sys/lib/libkern I hope strtoul is OK */
strtoul((char *)data, NULL, base);
#endif
break;
case ndis_parm_hexint:
#ifdef __FreeBSD__
if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0) {
#else /* __NetBSD__ */
if (strncmp((char *)data, "0x", 2) == 0) {
#endif
base = 16;
}
else
base = 10;
(*parm)->ncp_type = ndis_parm_hexint;
(*parm)->ncp_parmdata.ncp_intdata =
#ifdef __FreeBSD__
strtoul((char *)oid->oid_arg1, NULL, base);
#else /* __NetBSD__ */
strtoul((char *)data, NULL, base);
#endif
break;
default:
return(NDIS_STATUS_FAILURE);
break;
}
return(NDIS_STATUS_SUCCESS);
}
int
ndis_strcasecmp(const char *s1, const char *s2)
{
char a, b;
/*
* In the kernel, toupper() is a macro. Have to be careful
* not to use pointer arithmetic when passing it arguments.
*/
while(1) {
a = *s1;
b = *s2++;
if (toupper(a) != toupper(b))
break;
if (*s1++ == '\0')
return(0);
}
return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1));
}
int
ndis_strncasecmp(const char *s1, const char *s2, size_t n)
{
char a, b;
if (n != 0) {
do {
a = *s1;
b = *s2++;
if (toupper(a) != toupper(b))
return (*(const unsigned char *)s1 -
*(const unsigned char *)(s2 - 1));
if (*s1++ == '\0')
break;
} while (--n != 0);
}
return(0);
}
__stdcall static void
NdisReadConfiguration(ndis_status *status, ndis_config_parm **parm, ndis_handle cfg, ndis_unicode_string *key, ndis_parm_type type)
{
char *keystr = NULL;
uint16_t *unicode;
ndis_miniport_block *block;
struct ndis_softc *sc;
#ifdef __FreeBSD__
struct sysctl_oid *oidp;
struct sysctl_ctx_entry *e;
#endif
#ifdef __NetBSD__
const struct sysctlnode *pnode = NULL;
struct sysctlnode *ndiscld = NULL;
int error;
int numcld;
int mib[1];
int i;
char new_keystr[MAX_SYSCTL_LEN+1];
char *old_keystr;
#endif
block = (ndis_miniport_block *)cfg;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = block->nmb_physdeviceobj->pdo_sc;
#endif
PN(NdisReadConfiguration)
if (key->us_len == 0 || key->us_buf == NULL) {
*status = NDIS_STATUS_FAILURE;
return;
}
ndis_unicode_to_ascii(key->us_buf, key->us_len, &keystr);
*parm = &block->nmb_replyparm;
memset((char *)&block->nmb_replyparm, 0, sizeof(ndis_config_parm));
unicode = (uint16_t *)&block->nmb_dummybuf;
#ifdef __NetBSD__
if(strlen(keystr) + strlen("ndis_") > MAX_SYSCTL_LEN) {
panic("sysctl name too long: %s\n", keystr);
}
strcpy(new_keystr, "ndis_");
strcpy(new_keystr + strlen("ndis_"), keystr);
old_keystr = keystr;
keystr = new_keystr;
#endif
/*
* See if registry key is already in a list of known keys
* included with the driver.
*/
#ifdef __FreeBSD__
#if __FreeBSD_version < 502113
TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
#else
TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
#endif
oidp = e->entry;
#ifdef __FreeBSD__
if (ndis_strcasecmp(oidp->oid_name, keystr) == 0) {
#else /* __NetBSD__ */
if (ndis_strcasecmp(oidp->ctl_name, keystr) == 0) {
#endif
if (strcmp((char *)oidp->oid_arg1, "UNSET") == 0) {
free(keystr, M_DEVBUF);
*status = NDIS_STATUS_FAILURE;
return;
}
*status = ndis_encode_parm(block, oidp, type, parm);
free(keystr, M_DEVBUF);
return;
}
}
#else /* __NetBSD__ */
mib[0] = sc->ndis_sysctl_mib;
sysctl_lock(false);
error = sysctl_locate(curlwp, &mib[0], 1, &pnode, NULL);
numcld = pnode->sysctl_csize;
ndiscld = pnode->sysctl_child;
/* find the node whose name is keystr */
for(i=0; i < numcld; i++) {
if(strcmp(keystr, ndiscld->sysctl_name) == 0) {
/* Found it */
break;
}
ndiscld++;
}
sysctl_unlock();
if(i < numcld) {
/* Found it */
if(strcmp(ndiscld->sysctl_data, "UNSET") == 0) {
free(keystr, M_DEVBUF);
*status = NDIS_STATUS_FAILURE;
return;
}
*status = ndis_encode_parm(block, ndiscld->sysctl_data, type, parm);
free(keystr, M_DEVBUF);
return;
}
#endif
#ifdef __NetBSD__
free(keystr, M_DEVBUF);
keystr = old_keystr;
#endif
/*
* If the key didn't match, add it to the list of dynamically
* created ones. Sometimes, drivers refer to registry keys
* that aren't documented in their .INF files. These keys
* are supposed to be created by some sort of utility or
* control panel snap-in that comes with the driver software.
* Sometimes it's useful to be able to manipulate these.
* If the driver requests the key in the form of a string,
* make its default value an empty string, otherwise default
* it to "0".
*/
if (type == ndis_parm_int || type == ndis_parm_hexint)
ndis_add_sysctl(sc, keystr, "(dynamic integer key)",
"UNSET", CTLFLAG_RW);
else
ndis_add_sysctl(sc, keystr, "(dynamic string key)",
"UNSET", CTLFLAG_RW);
free(keystr, M_DEVBUF);
*status = NDIS_STATUS_FAILURE;
return;
}
#ifdef __FreeBSD__
static ndis_status
ndis_decode_parm(ndis_miniport_block *block, ndis_config_parm *parm, char *val)
{
ndis_unicode_string *ustr;
char *astr = NULL;
PN(ndis_decode_parm)
switch(parm->ncp_type) {
case ndis_parm_string:
ustr = &parm->ncp_parmdata.ncp_stringdata;
ndis_unicode_to_ascii(ustr->us_buf, ustr->us_len, &astr);
memcpy( val, astr, 254);
free(astr, M_DEVBUF);
break;
case ndis_parm_int:
sprintf(val, "%d", parm->ncp_parmdata.ncp_intdata);
break;
case ndis_parm_hexint:
sprintf(val, "%xu", parm->ncp_parmdata.ncp_intdata);
break;
default:
return(NDIS_STATUS_FAILURE);
break;
}
return(NDIS_STATUS_SUCCESS);
}
#endif
__stdcall static void
NdisWriteConfiguration(
ndis_status *status,
ndis_handle cfg,
ndis_unicode_string *key,
ndis_config_parm *parm)
{
#ifdef __FreeBSD__
char *keystr = NULL;
ndis_miniport_block *block;
struct ndis_softc *sc;
struct sysctl_oid *oidp;
struct sysctl_ctx_entry *e;
char val[256];
block = (ndis_miniport_block *)cfg;
PN(NdisWriteConfiguration)
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
ndis_unicode_to_ascii(key->us_buf, key->us_len, &keystr);
/* Decode the parameter into a string. */
memset(val, 0, sizeof(val));
*status = ndis_decode_parm(block, parm, val);
if (*status != NDIS_STATUS_SUCCESS) {
free(keystr, M_DEVBUF);
return;
}
/* See if the key already exists. */
#if __FreeBSD_version < 502113 || !defined(__FreeBSD__)
TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
#else
TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
#endif
oidp = e->entry;
if (ndis_strcasecmp(oidp->oid_name, keystr) == 0) {
/* Found it, set the value. */
strcpy((char *)oidp->oid_arg1, val);
free(keystr, M_DEVBUF);
return;
}
}
/* Not found, add a new key with the specified value. */
ndis_add_sysctl(sc, keystr, "(dynamically set key)",
val, CTLFLAG_RW);
free(keystr, M_DEVBUF);
*status = NDIS_STATUS_SUCCESS;
return;
#else /* __FreeBSD__ */
*status = NDIS_STATUS_SUCCESS;
return;
#endif
}
__stdcall static void
NdisCloseConfiguration(ndis_handle cfg)
{
return;
}
/*
* Initialize a Windows spinlock.
*/
__stdcall static void
NdisAllocateSpinLock(ndis_spin_lock *lock)
{
KeInitializeSpinLock(&lock->nsl_spinlock);
lock->nsl_kirql = 0;
return;
}
/*
* Destroy a Windows spinlock. This is a no-op for now. There are two reasons
* for this. One is that it's sort of superfluous: we don't have to do anything
* special to deallocate the spinlock. The other is that there are some buggy
* drivers which call NdisFreeSpinLock() _after_ calling NdisFreeMemory() on
* the block of memory in which the spinlock resides. (Yes, ADMtek, I'm
* talking to you.)
*/
__stdcall static void
NdisFreeSpinLock(ndis_spin_lock *lock)
{
#ifdef notdef
KeInitializeSpinLock(&lock->nsl_spinlock);
lock->nsl_kirql = 0;
#endif
return;
}
/*
* Acquire a spinlock from IRQL <= DISPATCH_LEVEL.
*/
__stdcall static void
NdisAcquireSpinLock(ndis_spin_lock *lock)
{
KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
return;
}
/*
* Release a spinlock from IRQL == DISPATCH_LEVEL.
*/
__stdcall static void
NdisReleaseSpinLock(ndis_spin_lock *lock)
{
KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
return;
}
/*
* Acquire a spinlock when already running at IRQL == DISPATCH_LEVEL.
*/
__stdcall static void
NdisDprAcquireSpinLock(ndis_spin_lock *lock)
{
KeAcquireSpinLockAtDpcLevel(&lock->nsl_spinlock);
return;
}
/*
* Release a spinlock without leaving IRQL == DISPATCH_LEVEL.
*/
__stdcall static void
NdisDprReleaseSpinLock(ndis_spin_lock *lock)
{
KeReleaseSpinLockFromDpcLevel(&lock->nsl_spinlock);
return;
}
__stdcall static uint32_t
NdisReadPciSlotInformation(
ndis_handle adapter,
uint32_t slot,
uint32_t offset,
void *buf,
uint32_t len)
{
ndis_miniport_block *block;
int i;
#ifdef __FreeBSD__
char *dest;
#else
pcireg_t *dest;
#endif
/* PN(NdisReadPciSlotInformation) */
device_t dev;
struct ndis_softc *sc;
block = (ndis_miniport_block *)adapter;
dest = buf;
if (block == NULL)
return(0);
dev = (device_t)block->nmb_physdeviceobj->do_devext;
#ifdef __FreeBSD__
sc = device_get_softc(dev);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
/*
* I have a test system consisting of a Sun w2100z
* dual 2.4Ghz Opteron machine and an Atheros 802.11a/b/g
* "Aries" miniPCI NIC. (The NIC is installed in the
* machine using a miniPCI to PCI bus adapter card.)
* When running in SMP mode, I found that
* performing a large number of consecutive calls to
* NdisReadPciSlotInformation() would result in a
* sudden system reset (or in some cases a freeze).
* My suspicion is that the multiple reads are somehow
* triggering a fatal PCI bus error that leads to a
* machine check. The 1us delay in the loop below
* seems to prevent this problem.
*/
#ifdef __FreeBSD__
for (i = 0; i < len; i++) {
#else /* __NetBSD__ */
for (i = 0; i < len/4; i += 4) {
#endif
DELAY(1);
#ifdef __FreeBSD__
dest[i] = pci_read_config(dev, i + offset, 1);
#else
dest[i/4] = pci_conf_read(sc->ndis_res_pc,sc->ndis_res_pctag, (i + offset));
#endif
}
return(len);
}
__stdcall static uint32_t
NdisWritePciSlotInformation(
ndis_handle adapter,
uint32_t slot,
uint32_t offset,
void *buf,
uint32_t len)
{
ndis_miniport_block *block;
int i;
#ifdef __FreeBSD__
char *dest;
#else
pcireg_t *dest;
#endif
device_t dev;
/* PN(NdisWritePciSlotInformation) */
block = (ndis_miniport_block *)adapter;
dest = buf;
struct ndis_softc *sc;
if (block == NULL)
return(0);
dev = block->nmb_physdeviceobj->do_devext;
#ifdef __FreeBSD__
sc = device_get_softc(dev);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
#ifdef __FreeBSD__
for (i = 0; i < len; i++) {
#else /* __NetBSD__ */
for (i = 0; i < len/4; i++) {
#endif
DELAY(1);
#ifdef __FreeBSD__
pci_write_config(dev, i + offset, dest[i], 1);
#else
pci_conf_write(sc->ndis_res_pc,sc->ndis_res_pctag,
(i + offset), dest[i/4]);
#endif
}
return(len);
}
/*
* The errorlog routine uses a variable argument list, so we
* have to declare it this way.
*/
#define ERRMSGLEN 512
static void
NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
uint32_t numerrors, ...)
{
ndis_miniport_block *block;
va_list ap;
int i, error;
char *str = NULL, *ustr = NULL;
uint16_t flags;
char msgbuf[ERRMSGLEN];
device_t dev;
driver_object *drv;
PN(NdisWriteErrorLogEntry)
block = (ndis_miniport_block *)adapter;
dev = block->nmb_physdeviceobj->do_devext;
drv = block->nmb_physdeviceobj->do_drvobj;
error = pe_get_message((vm_offset_t)drv->dro_driverstart,
code, &str, &i, &flags);
if (error == 0 && flags & MESSAGE_RESOURCE_UNICODE) {
ustr = msgbuf;
ndis_unicode_to_ascii((uint16_t *)str,
((i / 2)) > (ERRMSGLEN - 1) ? ERRMSGLEN : i, &ustr);
str = ustr;
}
printf ("%s: NDIS ERROR: %x (%s)\n", device_xname(dev), code,
str == NULL ? "unknown error" : str);
printf ("%s: NDIS NUMERRORS: %x\n", device_xname(dev), numerrors);
va_start(ap, numerrors);
for (i = 0; i < numerrors; i++)
printf ("%s: argptr: %p\n",
device_xname(dev),
va_arg(ap, void *));
va_end(ap);
return;
}
static void
ndis_map_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct ndis_map_arg *ctx;
int i;
PN(ndis_map_cb)
if (error)
return;
ctx = arg;
for (i = 0; i < nseg; i++) {
ctx->nma_fraglist[i].npu_physaddr.np_quad = segs[i].ds_addr;
ctx->nma_fraglist[i].npu_len = segs[i].ds_len;
}
ctx->nma_cnt = nseg;
return;
}
__stdcall static void
NdisMStartBufferPhysicalMapping(ndis_handle adapter, ndis_buffer *buf, uint32_t mapreg, uint8_t writedev, ndis_paddr_unit *addrarray, uint32_t *arraysize)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
struct ndis_map_arg nma;
bus_dmamap_t map;
int error;
PN(NdisMStartBufferPhysicalMapping)
if (adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
if (mapreg > sc->ndis_mmapcnt)
return;
map = sc->ndis_mmaps[mapreg];
nma.nma_fraglist = addrarray;
#ifdef __FreeBSD__
error = bus_dmamap_load(sc->ndis_mtag, map,
MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf), ndis_map_cb,
(void *)&nma, BUS_DMA_NOWAIT);
#else
error = bus_dmamap_load(sc->ndis_mtag, map,
MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf),
NULL /* kernel space */, BUS_DMA_NOWAIT);
/* callback function called "by hand" */
ndis_map_cb((void *)&nma, map->dm_segs, map->dm_nsegs, error);
#endif
if (error)
return;
#ifdef __FreeBSD__
bus_dmamap_sync(sc->ndis_mtag, map,
writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
#else
bus_dmamap_sync(sc->ndis_mtag, map, 0, map->dm_mapsize,
writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
#endif
*arraysize = nma.nma_cnt;
return;
}
__stdcall static void
NdisMCompleteBufferPhysicalMapping(
ndis_handle adapter,
ndis_buffer *buf,
uint32_t mapreg)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
bus_dmamap_t map;
PN(NdisMCompleteBufferPhysicalMapping)
if (adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
if (mapreg > sc->ndis_mmapcnt)
return;
map = sc->ndis_mmaps[mapreg];
#ifdef __FreeBSD__
bus_dmamap_sync(sc->ndis_mtag, map,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
#else
bus_dmamap_sync(sc->ndis_mtag, map, 0, map->dm_mapsize,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
#endif
bus_dmamap_unload(sc->ndis_mtag, map);
return;
}
/*
* This is an older (?) timer init routine which doesn't
* accept a miniport context handle. Serialized miniports should
* never call this function.
*/
__stdcall static void
NdisInitializeTimer(ndis_timer *timer, ndis_timer_function func, void *ctx)
{
KeInitializeTimer(&timer->nt_ktimer);
KeInitializeDpc(&timer->nt_kdpc, func, ctx);
return;
}
__stdcall static void
ndis_timercall(kdpc *dpc, ndis_miniport_timer *timer, void *sysarg1, void *sysarg2)
{
//PN(ndis_timercall)
/*
* Since we're called as a DPC, we should be running
* at DISPATCH_LEVEL here. This means to acquire the
* spinlock, we can use KeAcquireSpinLockAtDpcLevel()
* rather than KeAcquireSpinLock().
*/
if (NDIS_SERIALIZED(timer->nmt_block))
KeAcquireSpinLockAtDpcLevel(&timer->nmt_block->nmb_lock);
MSCALL4(timer->nmt_timerfunc, dpc, timer->nmt_timerctx,
sysarg1, sysarg2);
if (NDIS_SERIALIZED(timer->nmt_block))
KeReleaseSpinLockFromDpcLevel(&timer->nmt_block->nmb_lock);
return;
}
/*
* For a long time I wondered why there were two NDIS timer initialization
* routines, and why this one needed an NDIS_MINIPORT_TIMER and the
* MiniportAdapterHandle. The NDIS_MINIPORT_TIMER has its own callout
* function and context pointers separate from those in the DPC, which
* allows for another level of indirection: when the timer fires, we
* can have our own timer function invoked, and from there we can call
* the driver's function. But why go to all that trouble? Then it hit
* me: for serialized miniports, the timer callouts are not re-entrant.
* By trapping the callouts and having access to the MiniportAdapterHandle,
* we can protect the driver callouts by acquiring the NDIS serialization
* lock. This is essential for allowing serialized miniports to work
* correctly on SMP systems. On UP hosts, setting IRQL to DISPATCH_LEVEL
* is enough to prevent other threads from pre-empting you, but with
* SMP, you must acquire a lock as well, otherwise the other CPU is
* free to clobber you.
*/
/* Just to test out how much memory is wasted*/
int ndis_num_timers_allocated = 0;
__stdcall static void
NdisMInitializeTimer(ndis_miniport_timer *timer, ndis_handle handle, ndis_timer_function func, void *ctx)
{
/* Save the driver's funcptr and context */
PN(NdisMInitializeTimer)
timer->nmt_timerfunc = func;
timer->nmt_timerctx = ctx;
timer->nmt_block = handle;
#ifdef __NetBSD__
/* TODO: free this memory somewhere! */
printf("Allocating callout struct\n");
if(timer->nmt_ktimer.k_handle == NULL) {
timer->nmt_ktimer.k_handle =
malloc(sizeof(struct callout), M_DEVBUF, M_NOWAIT|M_ZERO);
ndis_num_timers_allocated++;
}
#endif
/*
* Set up the timer so it will call our intermediate DPC.
* Be sure to use the wrapped entry point, since
* ntoskrnl_run_dpc() expects to invoke a function with
* Microsoft calling conventions.
*/
KeInitializeTimer(&timer->nmt_ktimer);
KeInitializeDpc(&timer->nmt_kdpc,
ndis_findwrap((funcptr)ndis_timercall), timer);
return;
}
/*
* In Windows, there's both an NdisMSetTimer() and an NdisSetTimer(),
* but the former is just a macro wrapper around the latter.
*/
__stdcall static void
NdisSetTimer(ndis_timer *timer, uint32_t msecs)
{
PN(NdisSetTimer)
/*
* KeSetTimer() wants the period in
* hundred nanosecond intervals.
*/
KeSetTimer(&timer->nt_ktimer,
((int64_t)msecs * -10000), &timer->nt_kdpc);
return;
}
__stdcall static void
NdisMSetPeriodicTimer(ndis_miniport_timer *timer, uint32_t msecs)
{
PN(NdisMSetPeriodicTimer)
KeSetTimerEx(&timer->nmt_ktimer,
((int64_t)msecs * -10000), msecs, &timer->nmt_kdpc);
return;
}
/*
* Technically, this is really NdisCancelTimer(), but we also
* (ab)use it for NdisMCancelTimer(), since in our implementation
* we don't need the extra info in the ndis_miniport_timer
* structure just to cancel a timer.
*/
__stdcall static void
NdisMCancelTimer(ndis_timer *timer, uint8_t *cancelled)
{
PN(NdisMCancelTimer)
*cancelled = KeCancelTimer(&timer->nt_ktimer);
return;
}
__stdcall static void
NdisMQueryAdapterResources(ndis_status *status, ndis_handle adapter, ndis_resource_list *list, uint32_t *buflen)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
int rsclen;
PN(NdisMQueryAdapterResources)
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
rsclen = sizeof(ndis_resource_list) +
(sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1));
if (*buflen < rsclen) {
*buflen = rsclen;
*status = NDIS_STATUS_INVALID_LENGTH;
return;
}
#ifdef __FreeBSD__
memcpy( (char *)list, (char *)block->nmb_rlist, rsclen);
#else /* __NetBSD__ */
memcpy(list, block->nmb_rlist, rsclen);
#endif
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static ndis_status
NdisMRegisterIoPortRange(
void **offset,
ndis_handle adapter,
uint32_t port,
uint32_t numports)
{
struct ndis_miniport_block *block;
struct ndis_softc *sc;
PN(NdisMRegisterIoPortRange)
if (adapter == NULL)
return(NDIS_STATUS_FAILURE);
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
#ifdef __FreeBSD__
if (sc->ndis_res_io == NULL)
#else
if (sc->ndis_res_io == NULL && sc->ndis_iftype != PCMCIABus)
#endif
return(NDIS_STATUS_FAILURE);
/* Don't let the device map more ports than we have. */
#ifdef __FreeBSD__
if (rman_get_size(sc->ndis_res_io) < numports)
#else /* __NetBSD__ */
if ( (sc->ndis_iftype != PCMCIABus && sc->ndis_res_io->res_size < numports)
|| (sc->ndis_iftype == PCMCIABus && sc->ndis_res_pcioh.size < numports) )
#endif
return(NDIS_STATUS_INVALID_LENGTH);
#ifdef __FreeBSD__
*offset = (void *)rman_get_start(sc->ndis_res_io);
#else /* __NetBSD__ */
switch (sc->ndis_iftype){
case PCIBus:
case CBus: /* CardBus */
*offset = (void*)(u_long)sc->ndis_res_io->res_base;
break;
case PCMCIABus:
*offset = (void*)(u_long)sc->ndis_res_pcioh.addr;
break;
default:
return(NDIS_STATUS_FAILURE);
}
#endif /* __NetBSD__ */
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisMDeregisterIoPortRange(
ndis_handle adapter,
uint32_t port,
uint32_t numports,
void *offset)
{
return;
}
__stdcall static void
NdisReadNetworkAddress(ndis_status *status, void **addr, uint32_t *addrlen, ndis_handle adapter)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
uint8_t empty[] = { 0, 0, 0, 0, 0, 0 };
PN(NdisReadNetworkAddress)
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
#ifdef __FreeBSD__
if (memcmp(sc->arpcom.ac_enaddr, empty, ETHER_ADDR_LEN) == 0)
#else
if (memcmp(CLLADDR(sc->arpcom.ec_if.if_sadl),
empty, ETHER_ADDR_LEN) == 0)
#endif
*status = NDIS_STATUS_FAILURE;
else {
#ifdef __FreeBSD__
*addr = sc->arpcom.ac_enaddr;
#else
memcpy(sc->ndis_mac, CLLADDR(sc->arpcom.ec_if.if_sadl),
ETHER_ADDR_LEN);
*addr = sc->ndis_mac;
#endif
*addrlen = ETHER_ADDR_LEN;
*status = NDIS_STATUS_SUCCESS;
}
return;
}
__stdcall static ndis_status
NdisQueryMapRegisterCount(
uint32_t bustype,
uint32_t *cnt)
{
PN(NdisQueryMapRegisterCount)
*cnt = 8192;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisMAllocateMapRegisters(
ndis_handle adapter,
uint32_t dmachannel,
uint8_t dmasize,
uint32_t physmapneeded,
uint32_t maxmap)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
#ifdef __FreeBSD__
int error;
#endif
int i, nseg = NDIS_MAXSEG;
PN(NdisMAllocateMapRegisters)
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
sc->ndis_mmaps = malloc(sizeof(bus_dmamap_t) * physmapneeded,
M_DEVBUF, M_NOWAIT|M_ZERO);
if (sc->ndis_mmaps == NULL)
return(NDIS_STATUS_RESOURCES);
#ifdef __FreeBSD__
error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL,
NULL, maxmap * nseg, nseg, maxmap, BUS_DMA_ALLOCNOW,
NULL, NULL, &sc->ndis_mtag);
if (error) {
free(sc->ndis_mmaps, M_DEVBUF);
return(NDIS_STATUS_RESOURCES);
}
#else
sc->ndis_mtag = sc->ndis_parent_tag;
#endif
for (i = 0; i < physmapneeded; i++) {
#ifdef __FreeBSD__
bus_dmamap_create(sc->ndis_mtag, 0, &sc->ndis_mmaps[i]);
#else
bus_dmamap_create(sc->ndis_mtag, maxmap * nseg,
nseg, maxmap, BUS_DMA_NOWAIT,
0, &sc->ndis_mmaps[i]);
#endif
}
sc->ndis_mmapcnt = physmapneeded;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisMFreeMapRegisters(ndis_handle adapter)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
int i;
PN(NdisMFreeMapRegisters)
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
for (i = 0; i < sc->ndis_mmapcnt; i++)
bus_dmamap_destroy(sc->ndis_mtag, sc->ndis_mmaps[i]);
free(sc->ndis_mmaps, M_DEVBUF);
#ifdef __FreeBSD__
bus_dma_tag_destroy(sc->ndis_mtag);
#endif
return;
}
static void
ndis_mapshared_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
ndis_physaddr *p;
/* PN(ndis_mapshared_cb) */
if (error || nseg > 1)
return;
p = arg;
p->np_quad = segs[0].ds_addr;
return;
}
/*
* This maps to bus_dmamem_alloc().
*/
__stdcall static void
NdisMAllocateSharedMemory(
ndis_handle adapter,
uint32_t len,
uint8_t cached,
void **vaddr,
ndis_physaddr *paddr)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
struct ndis_shmem *sh;
int error;
#ifdef __NetBSD__
bus_dma_segment_t segs;
int nsegs;
#endif
/* PN(NdisMAllocateSharedMemory) */
if (adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
sh = malloc(sizeof(struct ndis_shmem), M_DEVBUF, M_NOWAIT|M_ZERO);
if (sh == NULL)
return;
/*
* When performing shared memory allocations, create a tag
* with a lowaddr limit that restricts physical memory mappings
* so that they all fall within the first 1GB of memory.
* At least one device/driver combination (Linksys Instant
* Wireless PCI Card V2.7, Broadcom 802.11b) seems to have
* problems with performing DMA operations with physical
* addresses that lie above the 1GB mark. I don't know if this
* is a hardware limitation or if the addresses are being
* truncated within the driver, but this seems to be the only
* way to make these cards work reliably in systems with more
* than 1GB of physical memory.
*/
#ifdef __FreeBSD__
error = bus_dma_tag_create(sc->ndis_parent_tag, 64,
0, NDIS_BUS_SPACE_SHARED_MAXADDR, BUS_SPACE_MAXADDR, NULL,
NULL, len, 1, len, BUS_DMA_ALLOCNOW, NULL, NULL,
&sh->ndis_stag);
if (error) {
free(sh, M_DEVBUF);
return;
}
error = bus_dmamem_alloc(sh->ndis_stag, vaddr,
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sh->ndis_smap);
if (error) {
bus_dma_tag_destroy(sh->ndis_stag);
free(sh, M_DEVBUF);
return;
}
error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, *vaddr,
len, ndis_mapshared_cb, (void *)paddr, BUS_DMA_NOWAIT);
if (error) {
bus_dmamem_free(sh->ndis_stag, *vaddr, sh->ndis_smap);
bus_dma_tag_destroy(sh->ndis_stag);
free(sh, M_DEVBUF);
return;
}
#else
sh->ndis_stag = sc->ndis_parent_tag;
error = bus_dmamem_alloc(sh->ndis_stag, len, 64, 0,
&segs, 1, &nsegs, BUS_DMA_NOWAIT);
if (error) {
printf("bus_dmamem_alloc failed(1)\n");
return;
}
error = bus_dmamem_map(sh->ndis_stag, &segs, nsegs,
len, /*(void **)&vaddr*/ (void **)vaddr, BUS_DMA_NOWAIT);
/* printf("*vaddr = %x\n", (unsigned int)*vaddr); */
if (error) {
printf("bus_dmamem_alloc failed(2)\n");
/* XXX free */
return;
}
error = bus_dmamap_create(sh->ndis_stag, len, nsegs,
BUS_SPACE_MAXSIZE_32BIT, 0,
BUS_DMA_ALLOCNOW, &sh->ndis_smap);
if (error) {
printf("bus_dmamem_alloc failed(3)\n");
/* XXX free, unmap */
return;
}
error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, /*vaddr*/ *vaddr,
len, NULL, BUS_DMA_NOWAIT);
ndis_mapshared_cb((void *)paddr,
sh->ndis_smap->dm_segs,
sh->ndis_smap->dm_nsegs, error);
if (error) {
printf("bus_dmamem_alloc failed(3)\n");
/* XXX free, unmap, destroy */
return;
}
#endif
sh->ndis_saddr = *vaddr;
sh->ndis_next = sc->ndis_shlist;
sc->ndis_shlist = sh;
return;
}
struct ndis_allocwork {
ndis_handle na_adapter;
uint32_t na_len;
uint8_t na_cached;
void *na_ctx;
};
static void
ndis_asyncmem_complete(void *arg)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
struct ndis_allocwork *w;
void *vaddr;
ndis_physaddr paddr;
__stdcall ndis_allocdone_handler donefunc;
w = arg;
block = (ndis_miniport_block *)w->na_adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
PN(ndis_asyncmem_complete)
vaddr = NULL;
paddr.np_quad = 0;
donefunc = sc->ndis_chars->nmc_allocate_complete_func;
NdisMAllocateSharedMemory(w->na_adapter, w->na_len,
w->na_cached, &vaddr, &paddr);
MSCALL5(donefunc, w->na_adapter, vaddr, &paddr, w->na_len, w->na_ctx);
free(arg, M_DEVBUF);
return;
}
__stdcall static ndis_status
NdisMAllocateSharedMemoryAsync(ndis_handle adapter, uint32_t len, uint8_t cached, void *ctx)
{
struct ndis_allocwork *w;
PN(NdisMAllocateSharedMemoryAsync)
if (adapter == NULL)
return(NDIS_STATUS_FAILURE);
w = malloc(sizeof(struct ndis_allocwork), M_TEMP, M_NOWAIT);
if (w == NULL)
return(NDIS_STATUS_FAILURE);
w->na_adapter = adapter;
w->na_cached = cached;
w->na_len = len;
w->na_ctx = ctx;
/*
* Pawn this work off on the SWI thread instead of the
* taskqueue thread, because sometimes drivers will queue
* up work items on the taskqueue thread that will block,
* which would prevent the memory allocation from completing
* when we need it.
*/
ndis_sched(ndis_asyncmem_complete, w, NDIS_SWI);
return(NDIS_STATUS_PENDING);
}
__stdcall static void
NdisMFreeSharedMemory(
ndis_handle adapter,
uint32_t len,
uint8_t cached,
void *vaddr,
ndis_physaddr paddr)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
struct ndis_shmem *sh, *prev;
PN(NdisMFreeSharedMemory)
if (vaddr == NULL || adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
sh = prev = sc->ndis_shlist;
/* Sanity check: is list empty? */
if (sh == NULL)
return;
while (sh) {
if (sh->ndis_saddr == vaddr)
break;
prev = sh;
sh = sh->ndis_next;
}
bus_dmamap_unload(sh->ndis_stag, sh->ndis_smap);
#ifdef __FreeBSD__
bus_dmamem_free(sh->ndis_stag, vaddr, sh->ndis_smap);
bus_dma_tag_destroy(sh->ndis_stag);
#else
bus_dmamem_unmap(sh->ndis_stag, vaddr, sh->ndis_smap->dm_mapsize);
bus_dmamem_free(sh->ndis_stag,
sh->ndis_smap->dm_segs, sh->ndis_smap->dm_nsegs );
#endif
if (sh == sc->ndis_shlist)
sc->ndis_shlist = sh->ndis_next;
else
prev->ndis_next = sh->ndis_next;
free(sh, M_DEVBUF);
return;
}
__stdcall static ndis_status
NdisMMapIoSpace(
void **vaddr,
ndis_handle adapter,
ndis_physaddr paddr,
uint32_t len)
{
ndis_miniport_block *block;
struct ndis_softc *sc;
PN(NdisMMapIoSpace)
if (adapter == NULL)
return(NDIS_STATUS_FAILURE);
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
#ifdef __FreeBSD__
if (sc->ndis_res_mem != NULL &&
paddr.np_quad == rman_get_start(sc->ndis_res_mem))
*vaddr = (void *)rman_get_virtual(sc->ndis_res_mem);
else if (sc->ndis_res_altmem != NULL &&
paddr.np_quad == rman_get_start(sc->ndis_res_altmem))
*vaddr = (void *)rman_get_virtual(sc->ndis_res_altmem);
else if (sc->ndis_res_am != NULL &&
paddr.np_quad == rman_get_start(sc->ndis_res_am))
*vaddr = (void *)rman_get_virtual(sc->ndis_res_am);
else
return(NDIS_STATUS_FAILURE);
#else
/* TODO: add one for sc->ndis_res_am once PCMCIA is going */
if (sc->ndis_res_mem != NULL &&
paddr.np_quad == sc->ndis_res_mem->res_base)
*vaddr = bus_space_vaddr(sc->ndis_res_mem->res_tag,
sc->ndis_res_mem->res_handle);
else if (sc->ndis_res_altmem != NULL &&
paddr.np_quad == sc->ndis_res_altmem->res_base)
*vaddr = bus_space_vaddr(sc->ndis_res_altmem->res_tag,
sc->ndis_res_altmem->res_handle);
else
return(NDIS_STATUS_FAILURE);
/*
*vaddr = bus_space_vaddr(sc->ndis_res_mem->res_tag,
sc->ndis_res_mem->res_handle);
*/
#endif
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisMUnmapIoSpace(
ndis_handle adapter,
void *vaddr,
uint32_t len)
{
return;
}
__stdcall static uint32_t
NdisGetCacheFillSize(void)
{
return(128);
}
__stdcall static uint32_t
NdisMGetDmaAlignment(ndis_handle handle)
{
return(128);
}
/*
* NDIS has two methods for dealing with NICs that support DMA.
* One is to just pass packets to the driver and let it call
* NdisMStartBufferPhysicalMapping() to map each buffer in the packet
* all by itself, and the other is to let the NDIS library handle the
* buffer mapping internally, and hand the driver an already populated
* scatter/gather fragment list. If the driver calls
* NdisMInitializeScatterGatherDma(), it wants to use the latter
* method.
*/
__stdcall static ndis_status
NdisMInitializeScatterGatherDma(
ndis_handle adapter,
uint8_t is64,
uint32_t maxphysmap)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
#ifdef __FreeBSD__
int error;
#endif
PN(NdisMInitializeScatterGatherDma)
if (adapter == NULL)
return(NDIS_STATUS_FAILURE);
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
/* Don't do this twice. */
if (sc->ndis_sc == 1)
return(NDIS_STATUS_SUCCESS);
#ifdef __FreeBSD__
error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
MCLBYTES * NDIS_MAXSEG, NDIS_MAXSEG, MCLBYTES, BUS_DMA_ALLOCNOW,
NULL, NULL, &sc->ndis_ttag);
#else /* __NetBSD__ */
/* TODO: Is this correct to just use the parent tag? */
sc->ndis_ttag = sc->ndis_parent_tag;
#endif
sc->ndis_sc = 1;
return(NDIS_STATUS_SUCCESS);
}
__stdcall void
NdisAllocatePacketPool(ndis_status *status, ndis_handle *pool, uint32_t descnum, uint32_t protrsvdlen)
{
ndis_packet *cur;
int i;
PN(NdisAllocatePacketPool)
*pool = malloc((sizeof(ndis_packet) + protrsvdlen) *
((descnum + NDIS_POOL_EXTRA) + 1),
M_DEVBUF, M_NOWAIT|M_ZERO);
if (*pool == NULL) {
*status = NDIS_STATUS_RESOURCES;
return;
}
cur = (ndis_packet *)*pool;
KeInitializeSpinLock(&cur->np_lock);
cur->np_private.npp_flags = 0x1; /* mark the head of the list */
cur->np_private.npp_totlen = 0; /* init deletetion flag */
for (i = 0; i < (descnum + NDIS_POOL_EXTRA); i++) {
cur->np_private.npp_head = (ndis_handle)(cur + 1);
cur++;
}
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall void
NdisAllocatePacketPoolEx(ndis_status *status, ndis_handle *pool, uint32_t descnum, uint32_t oflowdescnum, uint32_t protrsvdlen)
{
return(NdisAllocatePacketPool(status, pool,
descnum + oflowdescnum, protrsvdlen));
}
__stdcall uint32_t
NdisPacketPoolUsage(ndis_handle pool)
{
ndis_packet *head;
uint8_t irql;
uint32_t cnt;
head = (ndis_packet *)pool;
KeAcquireSpinLock(&head->np_lock, &irql);
cnt = head->np_private.npp_count;
KeReleaseSpinLock(&head->np_lock, irql);
return(cnt);
}
__stdcall void
NdisFreePacketPool(ndis_handle pool)
{
ndis_packet *head;
uint8_t irql;
head = pool;
/* Mark this pool as 'going away.' */
KeAcquireSpinLock(&head->np_lock, &irql);
head->np_private.npp_totlen = 1;
/* If there are no buffers loaned out, destroy the pool. */
if (head->np_private.npp_count == 0) {
KeReleaseSpinLock(&head->np_lock, irql);
free(pool, M_DEVBUF);
} else {
printf("NDIS: buggy driver deleting active packet pool!\n");
KeReleaseSpinLock(&head->np_lock, irql);
}
return;
}
__stdcall void
NdisAllocatePacket(ndis_status *status, ndis_packet **packet, ndis_handle pool)
{
ndis_packet *head, *pkt;
uint8_t irql;
#ifdef __NetBSD__
/*TODO: For some reason NdisAllocatePacket was getting called once with pool being NULL
*TODO: and this was causing a seg-fault. This seems to solve the problem, but I'm not
*TODO: should happen at all in the first place.
*/
if(pool == NULL) {
*status = NDIS_STATUS_FAILURE;
return;
}
#endif
head = (ndis_packet *)pool;
KeAcquireSpinLock(&head->np_lock, &irql);
if (head->np_private.npp_flags != 0x1) {
*status = NDIS_STATUS_FAILURE;
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
/*
* If this pool is marked as 'going away' don't allocate any
* more packets out of it.
*/
if (head->np_private.npp_totlen) {
*status = NDIS_STATUS_FAILURE;
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
pkt = (ndis_packet *)head->np_private.npp_head;
if (pkt == NULL) {
*status = NDIS_STATUS_RESOURCES;
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
head->np_private.npp_head = pkt->np_private.npp_head;
pkt->np_private.npp_head = pkt->np_private.npp_tail = NULL;
/* Save pointer to the pool. */
pkt->np_private.npp_pool = head;
/* Set the oob offset pointer. Lots of things expect this. */
pkt->np_private.npp_packetooboffset =
offsetof(ndis_packet, np_oob);
/*
* We must initialize the packet flags correctly in order
* for the NDIS_SET_PACKET_MEDIA_SPECIFIC_INFO() and
* NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO() macros to work
* correctly.
*/
pkt->np_private.npp_ndispktflags = NDIS_PACKET_ALLOCATED_BY_NDIS;
pkt->np_private.npp_validcounts = FALSE;
*packet = pkt;
head->np_private.npp_count++;
*status = NDIS_STATUS_SUCCESS;
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
__stdcall void
NdisFreePacket(ndis_packet *packet)
{
ndis_packet *head;
uint8_t irql;
if (packet == NULL || packet->np_private.npp_pool == NULL)
return;
head = packet->np_private.npp_pool;
KeAcquireSpinLock(&head->np_lock, &irql);
if (head->np_private.npp_flags != 0x1) {
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
packet->np_private.npp_head = head->np_private.npp_head;
head->np_private.npp_head = (ndis_buffer *)packet;
head->np_private.npp_count--;
/*
* If the pool has been marked for deletion and there are
* no more packets outstanding, nuke the pool.
*/
if (head->np_private.npp_totlen && head->np_private.npp_count == 0) {
KeReleaseSpinLock(&head->np_lock, irql);
free(head, M_DEVBUF);
} else
KeReleaseSpinLock(&head->np_lock, irql);
return;
}
__stdcall static void
NdisUnchainBufferAtFront(ndis_packet *packet, ndis_buffer **buf)
{
ndis_packet_private *priv;
if (packet == NULL || buf == NULL)
return;
priv = &packet->np_private;
priv->npp_validcounts = FALSE;
if (priv->npp_head == priv->npp_tail) {
*buf = priv->npp_head;
priv->npp_head = priv->npp_tail = NULL;
} else {
*buf = priv->npp_head;
priv->npp_head = (*buf)->mdl_next;
}
return;
}
__stdcall static void
NdisUnchainBufferAtBack(ndis_packet *packet, ndis_buffer **buf)
{
ndis_packet_private *priv;
ndis_buffer *tmp;
if (packet == NULL || buf == NULL)
return;
priv = &packet->np_private;
priv->npp_validcounts = FALSE;
if (priv->npp_head == priv->npp_tail) {
*buf = priv->npp_head;
priv->npp_head = priv->npp_tail = NULL;
} else {
*buf = priv->npp_tail;
tmp = priv->npp_head;
while (tmp->mdl_next != priv->npp_tail)
tmp = tmp->mdl_next;
priv->npp_tail = tmp;
tmp->mdl_next = NULL;
}
return;
}
/*
* The NDIS "buffer" is really an MDL (memory descriptor list)
* which is used to describe a buffer in a way that allows it
* to mapped into different contexts. We have to be careful how
* we handle them: in some versions of Windows, the NdisFreeBuffer()
* routine is an actual function in the NDIS API, but in others
* it's just a macro wrapper around IoFreeMdl(). There's really
* no way to use the 'descnum' parameter to count how many
* "buffers" are allocated since in order to use IoFreeMdl() to
* dispose of a buffer, we have to use IoAllocateMdl() to allocate
* them, and IoAllocateMdl() just grabs them out of the heap.
*/
__stdcall static void
NdisAllocateBufferPool(
ndis_status *status,
ndis_handle *pool,
uint32_t descnum)
{
/*
* The only thing we can really do here is verify that descnum
* is a reasonable value, but I really don't know what to check
* it against.
*/
*pool = NonPagedPool;
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static void
NdisFreeBufferPool(ndis_handle pool)
{
return;
}
__stdcall static void
NdisAllocateBuffer(
ndis_status *status,
ndis_buffer **buffer,
ndis_handle pool,
void *vaddr,
uint32_t len)
{
ndis_buffer *buf;
buf = IoAllocateMdl(vaddr, len, FALSE, FALSE, NULL);
if (buf == NULL) {
*status = NDIS_STATUS_RESOURCES;
return;
}
*buffer = buf;
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static void
NdisFreeBuffer(ndis_buffer *buf)
{
IoFreeMdl(buf);
return;
}
/* Aw c'mon. */
__stdcall static uint32_t
NdisBufferLength(ndis_buffer *buf)
{
return(MmGetMdlByteCount(buf));
}
/*
* Get the virtual address and length of a buffer.
* Note: the vaddr argument is optional.
*/
__stdcall static void
NdisQueryBuffer(ndis_buffer *buf, void **vaddr, uint32_t *len)
{
if (vaddr != NULL)
*vaddr = MmGetMdlVirtualAddress(buf);
*len = MmGetMdlByteCount(buf);
return;
}
/* Same as above -- we don't care about the priority. */
__stdcall static void
NdisQueryBufferSafe(
ndis_buffer *buf,
void **vaddr,
uint32_t *len,
uint32_t prio)
{
if (vaddr != NULL)
*vaddr = MmGetMdlVirtualAddress(buf);
*len = MmGetMdlByteCount(buf);
return;
}
/* Damnit Microsoft!! How many ways can you do the same thing?! */
__stdcall static void *
NdisBufferVirtualAddress(ndis_buffer *buf)
{
return(MmGetMdlVirtualAddress(buf));
}
__stdcall static void *
NdisBufferVirtualAddressSafe(
ndis_buffer *buf,
uint32_t prio)
{
return(MmGetMdlVirtualAddress(buf));
}
__stdcall static void
NdisAdjustBufferLength(ndis_buffer *buf, int len)
{
MmGetMdlByteCount(buf) = len;
return;
}
__stdcall static uint32_t
NdisInterlockedIncrement(uint32_t *addend)
{
atomic_inc_32(addend);
return(*addend);
}
__stdcall static uint32_t
NdisInterlockedDecrement(uint32_t *addend)
{
atomic_dec_32(addend);
return(*addend);
}
__stdcall static void
NdisInitializeEvent(ndis_event *event)
{
/*
* NDIS events are always notification
* events, and should be initialized to the
* not signaled state.
*/
KeInitializeEvent(&event->ne_event, EVENT_TYPE_NOTIFY, FALSE);
return;
}
__stdcall static void
NdisSetEvent(ndis_event *event)
{
KeSetEvent(&event->ne_event, 0, 0);
return;
}
__stdcall static void
NdisResetEvent(ndis_event *event)
{
KeResetEvent(&event->ne_event);
return;
}
__stdcall static uint8_t
NdisWaitEvent(ndis_event *event, uint32_t msecs)
{
int64_t duetime;
uint32_t rval;
duetime = ((int64_t)msecs * -10000);
rval = KeWaitForSingleObject((nt_dispatch_header *)event,
0, 0, TRUE, msecs ? &duetime : NULL);
if (rval == STATUS_TIMEOUT)
return(FALSE);
return(TRUE);
}
__stdcall static ndis_status
NdisUnicodeStringToAnsiString(ndis_ansi_string *dstr, ndis_unicode_string *sstr)
{
if (dstr == NULL || sstr == NULL)
return(NDIS_STATUS_FAILURE);
if (ndis_unicode_to_ascii(sstr->us_buf,
sstr->us_len, &dstr->nas_buf))
return(NDIS_STATUS_FAILURE);
dstr->nas_len = dstr->nas_maxlen = strlen(dstr->nas_buf);
return (NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisAnsiStringToUnicodeString(ndis_unicode_string *dstr, ndis_ansi_string *sstr)
{
char *str;
if (dstr == NULL || sstr == NULL)
return(NDIS_STATUS_FAILURE);
str = malloc(sstr->nas_len + 1, M_DEVBUF, M_NOWAIT);
if (str == NULL)
return(NDIS_STATUS_FAILURE);
strncpy(str, sstr->nas_buf, sstr->nas_len);
*(str + sstr->nas_len) = '\0';
if (ndis_ascii_to_unicode(str, &dstr->us_buf)) {
free(str, M_DEVBUF);
return(NDIS_STATUS_FAILURE);
}
dstr->us_len = dstr->us_maxlen = sstr->nas_len * 2;
free(str, M_DEVBUF);
return (NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisMPciAssignResources(
ndis_handle adapter,
uint32_t slot,
ndis_resource_list **list)
{
ndis_miniport_block *block;
if (adapter == NULL || list == NULL)
return (NDIS_STATUS_FAILURE);
block = (ndis_miniport_block *)adapter;
*list = block->nmb_rlist;
return (NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisMRegisterInterrupt(
ndis_miniport_interrupt *intr,
ndis_handle adapter,
uint32_t ivec,
uint32_t ilevel,
uint8_t reqisr,
uint8_t shared,
ndis_interrupt_mode imode)
{
ndis_miniport_block *block;
block = adapter;
intr->ni_block = adapter;
intr->ni_isrreq = reqisr;
intr->ni_shared = shared;
block->nmb_interrupt = intr;
KeInitializeSpinLock(&intr->ni_dpccountlock);
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisMDeregisterInterrupt(ndis_miniport_interrupt *intr)
{
return;
}
__stdcall static void
NdisMRegisterAdapterShutdownHandler(ndis_handle adapter, void *shutdownctx, ndis_shutdown_handler shutdownfunc)
{
ndis_miniport_block *block;
ndis_miniport_characteristics *chars;
struct ndis_softc *sc;
if (adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
chars = sc->ndis_chars;
chars->nmc_shutdown_handler = shutdownfunc;
chars->nmc_rsvd0 = shutdownctx;
return;
}
__stdcall static void
NdisMDeregisterAdapterShutdownHandler(ndis_handle adapter)
{
ndis_miniport_block *block;
ndis_miniport_characteristics *chars;
struct ndis_softc *sc;
if (adapter == NULL)
return;
block = (ndis_miniport_block *)adapter;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
chars = sc->ndis_chars;
chars->nmc_shutdown_handler = NULL;
chars->nmc_rsvd0 = NULL;
return;
}
__stdcall static uint32_t
NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *buf)
{
if (buf == NULL)
return(0);
if (MmGetMdlByteCount(buf) == 0)
return(1);
return(SPAN_PAGES(MmGetMdlVirtualAddress(buf),
MmGetMdlByteCount(buf)));
}
__stdcall static void
NdisGetBufferPhysicalArraySize(ndis_buffer *buf, uint32_t *pages)
{
if (buf == NULL)
return;
*pages = NDIS_BUFFER_TO_SPAN_PAGES(buf);
return;
}
__stdcall static void
NdisQueryBufferOffset(ndis_buffer *buf, uint32_t *off, uint32_t *len)
{
if (buf == NULL)
return;
*off = MmGetMdlByteOffset(buf);
*len = MmGetMdlByteCount(buf);
return;
}
__stdcall static void
NdisMSleep(uint32_t usecs)
{
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = usecs;
#ifdef __FreeBSD__
ndis_thsuspend(curthread->td_proc, NULL, tvtohz(&tv));
#else
ndis_thsuspend(curproc, NULL, tvtohz(&tv));
#endif
return;
}
__stdcall static uint32_t
NdisReadPcmciaAttributeMemory(ndis_handle handle, uint32_t offset, void *buf, uint32_t len)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
bus_space_handle_t bh;
bus_space_tag_t bt;
char *dest;
int i;
if (handle == NULL)
return(0);
block = (ndis_miniport_block *)handle;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
dest = buf;
#ifdef __FreeBSD__
bh = rman_get_bushandle(sc->ndis_res_am);
bt = rman_get_bustag(sc->ndis_res_am);
#else
if ( sc->ndis_iftype == PCMCIABus ){
bt = sc->ndis_res_pcmem.memt;
bh = sc->ndis_res_pcmem.memh;
} else { /* cardbus case */
/* TODO what does it really wait for ? */
bt = sc->ndis_res_mem->res_tag;
bh = sc->ndis_res_mem->res_handle;
}
#endif
for (i = 0; i < len; i++)
dest[i] = bus_space_read_1(bt, bh, (offset + i) * 2);
return(i);
}
__stdcall static uint32_t
NdisWritePcmciaAttributeMemory(ndis_handle handle, uint32_t offset, void *buf, uint32_t len)
{
struct ndis_softc *sc;
ndis_miniport_block *block;
bus_space_handle_t bh;
bus_space_tag_t bt;
char *src;
int i;
if (handle == NULL)
return(0);
block = (ndis_miniport_block *)handle;
#ifdef __FreeBSD__
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
#else /* __NetBSD__ */
sc = (struct ndis_softc *)block->nmb_physdeviceobj->pdo_sc;
#endif
src = buf;
#ifdef __FreeBSD__
bh = rman_get_bushandle(sc->ndis_res_am);
bt = rman_get_bustag(sc->ndis_res_am);
#else
if ( sc->ndis_iftype == PCMCIABus ){
bt = sc->ndis_res_pcmem.memt;
bh = sc->ndis_res_pcmem.memh;
} else { /* cardbus case */
/* TODO what does it really wait for ? */
bt = sc->ndis_res_mem->res_tag;
bh = sc->ndis_res_mem->res_handle;
}
#endif
for (i = 0; i < len; i++)
bus_space_write_1(bt, bh, (offset + i) * 2, src[i]);
return(i);
}
__stdcall static list_entry *
NdisInterlockedInsertHeadList(list_entry *head, list_entry *entry, ndis_spin_lock *lock)
{
list_entry *flink;
KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
flink = head->nle_flink;
entry->nle_flink = flink;
entry->nle_blink = head;
flink->nle_blink = entry;
head->nle_flink = entry;
KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
return(flink);
}
__stdcall static list_entry *
NdisInterlockedRemoveHeadList(list_entry *head, ndis_spin_lock *lock)
{
list_entry *flink;
list_entry *entry;
KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
entry = head->nle_flink;
flink = entry->nle_flink;
head->nle_flink = flink;
flink->nle_blink = head;
KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
return(entry);
}
__stdcall static list_entry *
NdisInterlockedInsertTailList(list_entry *head, list_entry *entry, ndis_spin_lock *lock)
{
list_entry *blink;
KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
blink = head->nle_blink;
entry->nle_flink = head;
entry->nle_blink = blink;
blink->nle_flink = entry;
head->nle_blink = entry;
KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
return(blink);
}
__stdcall static uint8_t
NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *intr, void *syncfunc, void *syncctx)
{
__stdcall uint8_t (*sync)(void *);
uint8_t rval;
uint8_t irql;
if (syncfunc == NULL || syncctx == NULL)
return(0);
sync = syncfunc;
KeAcquireSpinLock(&intr->ni_dpccountlock, &irql);
rval = MSCALL1(sync, syncctx);
KeReleaseSpinLock(&intr->ni_dpccountlock, irql);
return(rval);
}
/*
* Return the number of 100 nanosecond intervals since
* January 1, 1601. (?!?!)
*/
__stdcall static void
NdisGetCurrentSystemTime(uint64_t *tval)
{
struct timespec ts;
#ifdef __NetBSD__
struct timeval tv;
microtime(&tv);
TIMEVAL_TO_TIMESPEC(&tv,&ts);
#else
nanotime(&ts);
#endif
*tval = (uint64_t)ts.tv_nsec / 100 + (uint64_t)ts.tv_sec * 10000000 +
(uint64_t)11644473600ULL;
return;
}
/*
* Return the number of milliseconds since the system booted.
*/
__stdcall static void
NdisGetSystemUpTime(uint32_t *tval)
{
*tval = (ticks * hz) / 1000;
return;
}
__stdcall static void
NdisInitializeString(ndis_unicode_string *dst, char *src)
{
ndis_unicode_string *u;
u = dst;
u->us_buf = NULL;
if (ndis_ascii_to_unicode(src, &u->us_buf))
return;
u->us_len = u->us_maxlen = strlen(src) * 2;
return;
}
__stdcall static void
NdisFreeString(ndis_unicode_string *str)
{
if (str == NULL)
return;
if (str->us_buf != NULL)
free(str->us_buf, M_DEVBUF);
free(str, M_DEVBUF);
return;
}
__stdcall static ndis_status
NdisMRemoveMiniport(ndis_handle *adapter)
{
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisInitAnsiString(ndis_ansi_string *dst, char *src)
{
ndis_ansi_string *a;
a = dst;
if (a == NULL)
return;
if (src == NULL) {
a->nas_len = a->nas_maxlen = 0;
a->nas_buf = NULL;
} else {
a->nas_buf = src;
a->nas_len = a->nas_maxlen = strlen(src);
}
return;
}
__stdcall static void
NdisInitUnicodeString(ndis_unicode_string *dst, uint16_t *src)
{
ndis_unicode_string *u;
int i;
u = dst;
if (u == NULL)
return;
if (src == NULL) {
u->us_len = u->us_maxlen = 0;
u->us_buf = NULL;
} else {
i = 0;
while(src[i] != 0)
i++;
u->us_buf = src;
u->us_len = u->us_maxlen = i * 2;
}
return;
}
__stdcall static void NdisMGetDeviceProperty(
ndis_handle adapter,
device_object **phydevobj,
device_object **funcdevobj,
device_object **nextdevobj,
cm_resource_list *resources,
cm_resource_list *transresources)
{
ndis_miniport_block *block;
block = (ndis_miniport_block *)adapter;
if (phydevobj != NULL)
*phydevobj = block->nmb_physdeviceobj;
if (funcdevobj != NULL)
*funcdevobj = block->nmb_deviceobj;
if (nextdevobj != NULL)
*nextdevobj = block->nmb_nextdeviceobj;
return;
}
__stdcall static void
NdisGetFirstBufferFromPacket(ndis_packet *packet, ndis_buffer **buf, void **firstva, uint32_t *firstlen, uint32_t *totlen)
{
ndis_buffer *tmp;
tmp = packet->np_private.npp_head;
*buf = tmp;
if (tmp == NULL) {
*firstva = NULL;
*firstlen = *totlen = 0;
} else {
*firstva = MmGetMdlVirtualAddress(tmp);
*firstlen = *totlen = MmGetMdlByteCount(tmp);
for (tmp = tmp->mdl_next; tmp != NULL; tmp = tmp->mdl_next)
*totlen += MmGetMdlByteCount(tmp);
}
return;
}
__stdcall static void
NdisGetFirstBufferFromPacketSafe(
ndis_packet *packet,
ndis_buffer **buf,
void **firstva,
uint32_t *firstlen,
uint32_t *totlen,
uint32_t prio)
{
NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen);
}
#ifdef __FreeBSD__
static int
ndis_find_sym(linker_file_t lf, char *filename, char *suffix, void * *sym)
{
char *fullsym;
char *suf;
int i;
fullsym = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
if (fullsym == NULL)
return(ENOMEM);
memset(fullsym, 0, MAXPATHLEN);
strncpy(fullsym, filename, MAXPATHLEN);
if (strlen(filename) < 4) {
ExFreePool(fullsym);
return(EINVAL);
}
/* If the filename has a .ko suffix, strip if off. */
suf = fullsym + (strlen(filename) - 3);
if (strcmp(suf, ".ko") == 0)
*suf = '\0';
for (i = 0; i < strlen(fullsym); i++) {
if (fullsym[i] == '.')
fullsym[i] = '_';
else
fullsym[i] = tolower(fullsym[i]);
}
strcat(fullsym, suffix);
*sym = linker_file_lookup_symbol(lf, fullsym, 0);
ExFreePool(fullsym);
if (*sym == 0)
return(ENOENT);
return(0);
}
/* can also return NDIS_STATUS_RESOURCES/NDIS_STATUS_ERROR_READING_FILE */
__stdcall static void
NdisOpenFile(ndis_status *status, ndis_handle *filehandle, uint32_t *filelength, ndis_unicode_string *filename, ndis_physaddr highestaddr)
{
char *afilename = NULL;
struct thread *td = curthread;
struct nameidata nd;
int flags, error;
struct vattr vat;
struct vattr *vap = &vat;
ndis_fh *fh;
char *path;
linker_file_t head, lf;
void *kldstart, *kldend;
ndis_unicode_to_ascii(filename->us_buf,
filename->us_len, &afilename);
fh = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_fh), 0);
if (fh == NULL) {
*status = NDIS_STATUS_RESOURCES;
return;
}
/*
* During system bootstrap, it's impossible to load files
* from the rootfs since it's not mounted yet. We therefore
* offer the possibility of opening files that have been
* preloaded as modules instead. Both choices will work
* when kldloading a module from multiuser, but only the
* module option will work during bootstrap. The module
* loading option works by using the ndiscvt(8) utility
* to convert the arbitrary file into a .ko using objcopy(1).
* This file will contain two special symbols: filename_start
* and filename_end. All we have to do is traverse the KLD
* list in search of those symbols and we've found the file
* data. As an added bonus, ndiscvt(8) will also generate
* a normal .o file which can be linked statically with
* the kernel. This means that the symbols will actual reside
* in the kernel's symbol table, but that doesn't matter to
* us since the kernel appears to us as just another module.
*/
/*
* This is an evil trick for getting the head of the linked
* file list, which is not exported from kern_linker.o. It
* happens that linker file #1 is always the kernel, and is
* always the first element in the list.
*/
head = linker_find_file_by_id(1);
for (lf = head; lf != NULL; lf = TAILQ_NEXT(lf, link)) {
if (ndis_find_sym(lf, afilename, "_start", &kldstart))
continue;
if (ndis_find_sym(lf, afilename, "_end", &kldend))
continue;
fh->nf_vp = lf;
fh->nf_map = NULL;
fh->nf_type = NDIS_FH_TYPE_MODULE;
*filelength = fh->nf_maplen = (kldend - kldstart) & 0xFFFFFFFF;
*filehandle = fh;
free(afilename, M_DEVBUF);
*status = NDIS_STATUS_SUCCESS;
return;
}
if (TAILQ_EMPTY(&mountlist)) {
ExFreePool(fh);
*status = NDIS_STATUS_FILE_NOT_FOUND;
printf("NDIS: could not find file %s in linker list\n",
afilename);
printf("NDIS: and no filesystems mounted yet, "
"aborting NdisOpenFile()\n");
free(afilename, M_DEVBUF);
return;
}
path = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
if (path == NULL) {
ExFreePool(fh);
*status = NDIS_STATUS_RESOURCES;
return;
}
snprintf(path, MAXPATHLEN, "%s/%s", ndis_filepath, afilename);
free(afilename, M_DEVBUF);
mtx_lock(&Giant);
/* Some threads don't have a current working directory. */
if (td->td_proc->p_fd->fd_rdir == NULL)
td->td_proc->p_fd->fd_rdir = rootvnode;
if (td->td_proc->p_fd->fd_cdir == NULL)
td->td_proc->p_fd->fd_cdir = rootvnode;
/* freebsd-only code; don't modernize this - dholland */
NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
flags = FREAD;
error = vn_open(&nd, &flags, 0, -1);
if (error) {
mtx_unlock(&Giant);
*status = NDIS_STATUS_FILE_NOT_FOUND;
ExFreePool(fh);
printf("NDIS: open file %s failed: %d\n", path, error);
ExFreePool(path);
return;
}
ExFreePool(path);
NDFREE(&nd, NDF_ONLY_PNBUF);
/* Get the file size. */
VOP_GETATTR(nd.ni_vp, vap, td->td_ucred, td);
VOP_UNLOCK(nd.ni_vp, 0, td);
mtx_unlock(&Giant);
fh->nf_vp = nd.ni_vp;
fh->nf_map = NULL;
fh->nf_type = NDIS_FH_TYPE_VFS;
*filehandle = fh;
*filelength = fh->nf_maplen = vap->va_size & 0xFFFFFFFF;
*status = NDIS_STATUS_SUCCESS;
return;
}
__stdcall static void
NdisMapFile(ndis_status *status, void **mappedbuffer, ndis_handle filehandle)
{
ndis_fh *fh;
struct thread *td = curthread;
linker_file_t lf;
void * kldstart;
int error, resid;
if (filehandle == NULL) {
*status = NDIS_STATUS_FAILURE;
return;
}
fh = (ndis_fh *)filehandle;
if (fh->nf_vp == NULL) {
*status = NDIS_STATUS_FAILURE;
return;
}
if (fh->nf_map != NULL) {
*status = NDIS_STATUS_ALREADY_MAPPED;
return;
}
if (fh->nf_type == NDIS_FH_TYPE_MODULE) {
lf = fh->nf_vp;
if (ndis_find_sym(lf, lf->filename, "_start", &kldstart)) {
*status = NDIS_STATUS_FAILURE;
return;
}
fh->nf_map = kldstart;
*status = NDIS_STATUS_SUCCESS;
*mappedbuffer = fh->nf_map;
return;
}
fh->nf_map = ExAllocatePoolWithTag(NonPagedPool, fh->nf_maplen, 0);
if (fh->nf_map == NULL) {
*status = NDIS_STATUS_RESOURCES;
return;
}
mtx_lock(&Giant);
error = vn_rdwr(UIO_READ, fh->nf_vp, fh->nf_map, fh->nf_maplen, 0,
UIO_SYSSPACE, 0, td->td_ucred, NOCRED, &resid, td);
mtx_unlock(&Giant);
if (error)
*status = NDIS_STATUS_FAILURE;
else {
*status = NDIS_STATUS_SUCCESS;
*mappedbuffer = fh->nf_map;
}
return;
}
__stdcall static void
NdisUnmapFile(ndis_handle filehandle)
{
ndis_fh *fh;
fh = (ndis_fh *)filehandle;
if (fh->nf_map == NULL)
return;
if (fh->nf_type == NDIS_FH_TYPE_VFS)
ExFreePool(fh->nf_map);
fh->nf_map = NULL;
return;
}
__stdcall static void
NdisCloseFile(ndis_handle filehandle)
{
struct thread *td = curthread;
ndis_fh *fh;
if (filehandle == NULL)
return;
fh = (ndis_fh *)filehandle;
if (fh->nf_map != NULL) {
if (fh->nf_type == NDIS_FH_TYPE_VFS)
ExFreePool(fh->nf_map);
fh->nf_map = NULL;
}
if (fh->nf_vp == NULL)
return;
if (fh->nf_type == NDIS_FH_TYPE_VFS) {
mtx_lock(&Giant);
vn_close(fh->nf_vp, FREAD, td->td_ucred, td);
mtx_unlock(&Giant);
}
fh->nf_vp = NULL;
ExFreePool(fh);
return;
}
#endif /* __FreeBSD__ */
__stdcall static uint8_t
NdisSystemProcessorCount(void)
{
#ifdef __FreeBSD__
return(mp_ncpus);
#else
return(nprocs);
#endif
}
typedef void (*ndis_statusdone_handler)(ndis_handle);
typedef void (*ndis_status_handler)(ndis_handle, ndis_status,
void *, uint32_t);
__stdcall static void
NdisMIndicateStatusComplete(ndis_handle adapter)
{
ndis_miniport_block *block;
__stdcall ndis_statusdone_handler statusdonefunc;
block = (ndis_miniport_block *)adapter;
statusdonefunc = block->nmb_statusdone_func;
MSCALL1(statusdonefunc, adapter);
return;
}
__stdcall static void
NdisMIndicateStatus(ndis_handle adapter, ndis_status status, void *sbuf, uint32_t slen)
{
ndis_miniport_block *block;
__stdcall ndis_status_handler statusfunc;
block = (ndis_miniport_block *)adapter;
statusfunc = block->nmb_status_func;
MSCALL4(statusfunc, adapter, status, sbuf, slen);
return;
}
static void
ndis_workfunc(void *ctx)
{
ndis_work_item *work;
__stdcall ndis_proc workfunc;
work = ctx;
workfunc = work->nwi_func;
MSCALL2(workfunc, work, work->nwi_ctx);
return;
}
__stdcall static ndis_status
NdisScheduleWorkItem(ndis_work_item *work)
{
ndis_sched(ndis_workfunc, work, NDIS_TASKQUEUE);
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisCopyFromPacketToPacket(ndis_packet *dpkt, uint32_t doff, uint32_t reqlen, ndis_packet *spkt, uint32_t soff, uint32_t *cpylen)
{
ndis_buffer *src, *dst;
char *sptr, *dptr;
int resid, copied, len, scnt, dcnt;
*cpylen = 0;
src = spkt->np_private.npp_head;
dst = dpkt->np_private.npp_head;
sptr = MmGetMdlVirtualAddress(src);
dptr = MmGetMdlVirtualAddress(dst);
scnt = MmGetMdlByteCount(src);
dcnt = MmGetMdlByteCount(dst);
while (soff) {
if (MmGetMdlByteCount(src) > soff) {
sptr += soff;
scnt = MmGetMdlByteCount(src)- soff;
break;
}
soff -= MmGetMdlByteCount(src);
src = src->mdl_next;
if (src == NULL)
return;
sptr = MmGetMdlVirtualAddress(src);
}
while (doff) {
if (MmGetMdlByteCount(dst) > doff) {
dptr += doff;
dcnt = MmGetMdlByteCount(dst) - doff;
break;
}
doff -= MmGetMdlByteCount(dst);
dst = dst->mdl_next;
if (dst == NULL)
return;
dptr = MmGetMdlVirtualAddress(dst);
}
resid = reqlen;
copied = 0;
while(1) {
if (resid < scnt)
len = resid;
else
len = scnt;
if (dcnt < len)
len = dcnt;
memcpy( dptr, sptr, len);
copied += len;
resid -= len;
if (resid == 0)
break;
dcnt -= len;
if (dcnt == 0) {
dst = dst->mdl_next;
if (dst == NULL)
break;
dptr = MmGetMdlVirtualAddress(dst);
dcnt = MmGetMdlByteCount(dst);
}
scnt -= len;
if (scnt == 0) {
src = src->mdl_next;
if (src == NULL)
break;
sptr = MmGetMdlVirtualAddress(src);
scnt = MmGetMdlByteCount(src);
}
}
*cpylen = copied;
return;
}
__stdcall static void
NdisCopyFromPacketToPacketSafe(
ndis_packet *dpkt,
uint32_t doff,
uint32_t reqlen,
ndis_packet *spkt,
uint32_t soff,
uint32_t *cpylen,
uint32_t prio)
{
NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen);
return;
}
__stdcall static ndis_status
NdisMRegisterDevice(
ndis_handle handle,
ndis_unicode_string *devname,
ndis_unicode_string *symname,
driver_dispatch *majorfuncs[],
void **devobj,
ndis_handle *devhandle)
{
ndis_miniport_block *block;
block = (ndis_miniport_block *)handle;
*devobj = block->nmb_deviceobj;
*devhandle = handle;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisMDeregisterDevice(ndis_handle handle)
{
return(NDIS_STATUS_SUCCESS);
}
__stdcall static ndis_status
NdisMQueryAdapterInstanceName(ndis_unicode_string *name, ndis_handle handle)
{
ndis_miniport_block *block;
device_t dev;
block = (ndis_miniport_block *)handle;
dev = block->nmb_physdeviceobj->do_devext;
ndis_ascii_to_unicode(__DECONST(char *,
device_get_nameunit(dev)), &name->us_buf);
name->us_len = strlen(device_get_nameunit(dev)) * 2;
return(NDIS_STATUS_SUCCESS);
}
__stdcall static void
NdisMRegisterUnloadHandler(
ndis_handle handle,
void *func)
{
return;
}
__stdcall static void
dummy(void)
{
printf ("NDIS dummy called...\n");
return;
}
image_patch_table ndis_functbl[] = {
IMPORT_FUNC(NdisCopyFromPacketToPacket),
IMPORT_FUNC(NdisCopyFromPacketToPacketSafe),
IMPORT_FUNC(NdisScheduleWorkItem),
IMPORT_FUNC(NdisMIndicateStatusComplete),
IMPORT_FUNC(NdisMIndicateStatus),
IMPORT_FUNC(NdisSystemProcessorCount),
IMPORT_FUNC(NdisUnchainBufferAtBack),
IMPORT_FUNC(NdisGetFirstBufferFromPacket),
IMPORT_FUNC(NdisGetFirstBufferFromPacketSafe),
IMPORT_FUNC(NdisGetBufferPhysicalArraySize),
IMPORT_FUNC(NdisMGetDeviceProperty),
IMPORT_FUNC(NdisInitAnsiString),
IMPORT_FUNC(NdisInitUnicodeString),
IMPORT_FUNC(NdisWriteConfiguration),
IMPORT_FUNC(NdisAnsiStringToUnicodeString),
IMPORT_FUNC(NdisTerminateWrapper),
IMPORT_FUNC(NdisOpenConfigurationKeyByName),
IMPORT_FUNC(NdisOpenConfigurationKeyByIndex),
IMPORT_FUNC(NdisMRemoveMiniport),
IMPORT_FUNC(NdisInitializeString),
IMPORT_FUNC(NdisFreeString),
IMPORT_FUNC(NdisGetCurrentSystemTime),
IMPORT_FUNC(NdisGetSystemUpTime),
IMPORT_FUNC(NdisMSynchronizeWithInterrupt),
IMPORT_FUNC(NdisMAllocateSharedMemoryAsync),
IMPORT_FUNC(NdisInterlockedInsertHeadList),
IMPORT_FUNC(NdisInterlockedInsertTailList),
IMPORT_FUNC(NdisInterlockedRemoveHeadList),
IMPORT_FUNC(NdisInitializeWrapper),
IMPORT_FUNC(NdisMRegisterMiniport),
IMPORT_FUNC(NdisAllocateMemoryWithTag),
IMPORT_FUNC(NdisAllocateMemory),
IMPORT_FUNC(NdisMSetAttributesEx),
IMPORT_FUNC(NdisCloseConfiguration),
IMPORT_FUNC(NdisReadConfiguration),
IMPORT_FUNC(NdisOpenConfiguration),
IMPORT_FUNC(NdisAcquireSpinLock),
IMPORT_FUNC(NdisReleaseSpinLock),
IMPORT_FUNC(NdisDprAcquireSpinLock),
IMPORT_FUNC(NdisDprReleaseSpinLock),
IMPORT_FUNC(NdisAllocateSpinLock),
IMPORT_FUNC(NdisFreeSpinLock),
IMPORT_FUNC(NdisFreeMemory),
IMPORT_FUNC(NdisReadPciSlotInformation),
IMPORT_FUNC(NdisWritePciSlotInformation),
IMPORT_FUNC_MAP(NdisImmediateReadPciSlotInformation,
NdisReadPciSlotInformation),
IMPORT_FUNC_MAP(NdisImmediateWritePciSlotInformation,
NdisWritePciSlotInformation),
IMPORT_FUNC(NdisWriteErrorLogEntry),
IMPORT_FUNC(NdisMStartBufferPhysicalMapping),
IMPORT_FUNC(NdisMCompleteBufferPhysicalMapping),
IMPORT_FUNC(NdisMInitializeTimer),
IMPORT_FUNC(NdisInitializeTimer),
IMPORT_FUNC(NdisSetTimer),
IMPORT_FUNC(NdisMCancelTimer),
IMPORT_FUNC_MAP(NdisCancelTimer, NdisMCancelTimer),
IMPORT_FUNC(NdisMSetPeriodicTimer),
IMPORT_FUNC(NdisMQueryAdapterResources),
IMPORT_FUNC(NdisMRegisterIoPortRange),
IMPORT_FUNC(NdisMDeregisterIoPortRange),
IMPORT_FUNC(NdisReadNetworkAddress),
IMPORT_FUNC(NdisQueryMapRegisterCount),
IMPORT_FUNC(NdisMAllocateMapRegisters),
IMPORT_FUNC(NdisMFreeMapRegisters),
IMPORT_FUNC(NdisMAllocateSharedMemory),
IMPORT_FUNC(NdisMMapIoSpace),
IMPORT_FUNC(NdisMUnmapIoSpace),
IMPORT_FUNC(NdisGetCacheFillSize),
IMPORT_FUNC(NdisMGetDmaAlignment),
IMPORT_FUNC(NdisMInitializeScatterGatherDma),
IMPORT_FUNC(NdisAllocatePacketPool),
IMPORT_FUNC(NdisAllocatePacketPoolEx),
IMPORT_FUNC(NdisAllocatePacket),
IMPORT_FUNC(NdisFreePacket),
IMPORT_FUNC(NdisFreePacketPool),
IMPORT_FUNC_MAP(NdisDprAllocatePacket, NdisAllocatePacket),
IMPORT_FUNC_MAP(NdisDprFreePacket, NdisFreePacket),
IMPORT_FUNC(NdisAllocateBufferPool),
IMPORT_FUNC(NdisAllocateBuffer),
IMPORT_FUNC(NdisQueryBuffer),
IMPORT_FUNC(NdisQueryBufferSafe),
IMPORT_FUNC(NdisBufferVirtualAddress),
IMPORT_FUNC(NdisBufferVirtualAddressSafe),
IMPORT_FUNC(NdisBufferLength),
IMPORT_FUNC(NdisFreeBuffer),
IMPORT_FUNC(NdisFreeBufferPool),
IMPORT_FUNC(NdisInterlockedIncrement),
IMPORT_FUNC(NdisInterlockedDecrement),
IMPORT_FUNC(NdisInitializeEvent),
IMPORT_FUNC(NdisSetEvent),
IMPORT_FUNC(NdisResetEvent),
IMPORT_FUNC(NdisWaitEvent),
IMPORT_FUNC(NdisUnicodeStringToAnsiString),
IMPORT_FUNC(NdisMPciAssignResources),
IMPORT_FUNC(NdisMFreeSharedMemory),
IMPORT_FUNC(NdisMRegisterInterrupt),
IMPORT_FUNC(NdisMDeregisterInterrupt),
IMPORT_FUNC(NdisMRegisterAdapterShutdownHandler),
IMPORT_FUNC(NdisMDeregisterAdapterShutdownHandler),
IMPORT_FUNC(NDIS_BUFFER_TO_SPAN_PAGES),
IMPORT_FUNC(NdisQueryBufferOffset),
IMPORT_FUNC(NdisAdjustBufferLength),
IMPORT_FUNC(NdisPacketPoolUsage),
IMPORT_FUNC(NdisMSleep),
IMPORT_FUNC(NdisUnchainBufferAtFront),
IMPORT_FUNC(NdisReadPcmciaAttributeMemory),
IMPORT_FUNC(NdisWritePcmciaAttributeMemory),
#ifdef __FreeBSD__
IMPORT_FUNC(NdisOpenFile),
IMPORT_FUNC(NdisMapFile),
IMPORT_FUNC(NdisUnmapFile),
IMPORT_FUNC(NdisCloseFile),
#endif
IMPORT_FUNC(NdisMRegisterDevice),
IMPORT_FUNC(NdisMDeregisterDevice),
IMPORT_FUNC(NdisMQueryAdapterInstanceName),
IMPORT_FUNC(NdisMRegisterUnloadHandler),
IMPORT_FUNC(ndis_timercall),
/*
* This last entry is a catch-all for any function we haven't
* implemented yet. The PE import list patching routine will
* use it for any function that doesn't have an explicit match
* in this table.
*/
{ NULL, (FUNC)dummy, NULL },
/* End of list. */
{ NULL, NULL, NULL }
};
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