383 lines
10 KiB
C
383 lines
10 KiB
C
#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <ldt.h>
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#include <memory.h>
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#include <unistd.h>
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#include <callback.h>
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#include "winbase.h"
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#include "aspi.h"
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#include "wnaspi32.h"
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#include "options.h"
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#include "heap.h"
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#include "debug.h"
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DEFAULT_DEBUG_CHANNEL(aspi)
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/* FIXME!
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* 1) Residual byte length reporting not handled
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* 2) Make this code re-entrant for multithreading
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* 3) Only linux supported so far
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*/
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#ifdef linux
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static int
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ASPI_OpenDevice(SRB_ExecSCSICmd *prb)
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{
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int fd;
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char idstr[20];
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char device_str[50];
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ASPI_DEVICE_INFO *curr;
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/* search list of devices to see if we've opened it already.
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* There is not an explicit open/close in ASPI land, so hopefully
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* keeping a device open won't be a problem.
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*/
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for (curr = ASPI_open_devices; curr; curr = curr->next) {
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if (curr->hostId == prb->SRB_HaId &&
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curr->target == prb->SRB_Target &&
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curr->lun == prb->SRB_Lun) {
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return curr->fd;
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}
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}
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/* device wasn't cached, go ahead and open it */
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sprintf(idstr, "scsi c%1dt%1dd%1d", prb->SRB_HaId, prb->SRB_Target, prb->SRB_Lun);
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if (!PROFILE_GetWineIniString(idstr, "Device", "", device_str, sizeof(device_str))) {
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TRACE(aspi, "Trying to open unlisted scsi device %s\n", idstr);
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return -1;
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}
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TRACE(aspi, "Opening device %s=%s\n", idstr, device_str);
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fd = open(device_str, O_RDWR);
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if (fd == -1) {
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int save_error = errno;
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#ifdef HAVE_STRERROR
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ERR(aspi, "Error opening device %s, error '%s'\n", device_str, strerror(save_error));
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#else
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ERR(aspi, "Error opening device %s, error %d\n", device_str, save_error);
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#endif
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return -1;
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}
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/* device is now open */
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curr = HeapAlloc( SystemHeap, 0, sizeof(ASPI_DEVICE_INFO) );
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curr->fd = fd;
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curr->hostId = prb->SRB_HaId;
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curr->target = prb->SRB_Target;
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curr->lun = prb->SRB_Lun;
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/* insert new record at beginning of open device list */
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curr->next = ASPI_open_devices;
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ASPI_open_devices = curr;
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return fd;
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}
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static void
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ASPI_DebugPrintCmd(SRB_ExecSCSICmd *prb)
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{
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BYTE cmd;
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int i;
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BYTE *cdb;
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dbg_decl_str(aspi, 512);
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switch (prb->CDBByte[0]) {
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case CMD_INQUIRY:
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TRACE(aspi, "{\n");
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TRACE(aspi, "\tEVPD: %d\n", prb->CDBByte[1] & 1);
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TRACE(aspi, "\tLUN: %d\n", (prb->CDBByte[1] & 0xc) >> 1);
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TRACE(aspi, "\tPAGE CODE: %d\n", prb->CDBByte[2]);
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TRACE(aspi, "\tALLOCATION LENGTH: %d\n", prb->CDBByte[4]);
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TRACE(aspi, "\tCONTROL: %d\n", prb->CDBByte[5]);
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TRACE(aspi, "}\n");
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break;
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case CMD_SCAN_SCAN:
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TRACE(aspi, "Transfer Length: %d\n", prb->CDBByte[4]);
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break;
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}
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TRACE(aspi, "Host Adapter: %d\n", prb->SRB_HaId);
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TRACE(aspi, "Flags: %d\n", prb->SRB_Flags);
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if (TARGET_TO_HOST(prb)) {
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TRACE(aspi, "\tData transfer: Target to host. Length checked.\n");
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}
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else if (HOST_TO_TARGET(prb)) {
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TRACE(aspi, "\tData transfer: Host to target. Length checked.\n");
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}
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else if (NO_DATA_TRANSFERED(prb)) {
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TRACE(aspi, "\tData transfer: none\n");
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}
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else {
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WARN(aspi, "\tTransfer by scsi cmd. Length not checked.\n");
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}
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TRACE(aspi, "\tResidual byte length reporting %s\n", prb->SRB_Flags & 0x4 ? "enabled" : "disabled");
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TRACE(aspi, "\tLinking %s\n", prb->SRB_Flags & 0x2 ? "enabled" : "disabled");
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TRACE(aspi, "\tPosting %s\n", prb->SRB_Flags & 0x1 ? "enabled" : "disabled");
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TRACE(aspi, "Target: %d\n", prb->SRB_Target);
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TRACE(aspi, "Lun: %d\n", prb->SRB_Lun);
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TRACE(aspi, "BufLen: %ld\n", prb->SRB_BufLen);
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TRACE(aspi, "SenseLen: %d\n", prb->SRB_SenseLen);
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TRACE(aspi, "BufPtr: %p\n", prb->SRB_BufPointer);
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TRACE(aspi, "CDB Length: %d\n", prb->SRB_CDBLen);
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TRACE(aspi, "POST Proc: %lx\n", (DWORD) prb->SRB_PostProc);
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cdb = &prb->CDBByte[0];
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cmd = prb->CDBByte[0];
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for (i = 0; i < prb->SRB_CDBLen; i++) {
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if (i != 0) dsprintf(aspi, ",");
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dsprintf(aspi, "%02x", *cdb++);
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}
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TRACE(aspi, "CDB buffer[%s]\n", dbg_str(aspi));
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}
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static void
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ASPI_PrintSenseArea(SRB_ExecSCSICmd *prb)
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{
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int i;
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BYTE *cdb;
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dbg_decl_str(aspi, 512);
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cdb = &prb->CDBByte[0];
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for (i = 0; i < prb->SRB_SenseLen; i++) {
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if (i) dsprintf(aspi, ",");
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dsprintf(aspi, "%02x", *cdb++);
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}
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TRACE(aspi, "SenseArea[%s]\n", dbg_str(aspi));
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}
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static void
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ASPI_DebugPrintResult(SRB_ExecSCSICmd *prb)
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{
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switch (prb->CDBByte[0]) {
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case CMD_INQUIRY:
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TRACE(aspi, "Vendor: '%s'\n", prb->SRB_BufPointer + INQUIRY_VENDOR);
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break;
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case CMD_TEST_UNIT_READY:
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ASPI_PrintSenseArea(prb);
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break;
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}
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}
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static WORD
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ASPI_ExecScsiCmd(SRB_ExecSCSICmd *lpPRB)
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{
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struct sg_header *sg_hd, *sg_reply_hdr;
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int status;
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int in_len, out_len;
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int error_code = 0;
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int fd;
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ASPI_DebugPrintCmd(lpPRB);
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fd = ASPI_OpenDevice(lpPRB);
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if (fd == -1) {
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ERR(aspi, "Failed: could not open device c%01dt%01dd%01d. Device permissions !?\n",
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lpPRB->SRB_HaId,lpPRB->SRB_Target,lpPRB->SRB_Lun);
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lpPRB->SRB_Status = SS_NO_DEVICE;
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return SS_NO_DEVICE;
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}
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sg_hd = NULL;
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sg_reply_hdr = NULL;
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lpPRB->SRB_Status = SS_PENDING;
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if (!lpPRB->SRB_CDBLen) {
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WARN(aspi, "Failed: lpPRB->SRB_CDBLen = 0.\n");
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lpPRB->SRB_Status = SS_ERR;
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return SS_ERR;
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}
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/* build up sg_header + scsi cmd */
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if (HOST_TO_TARGET(lpPRB)) {
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/* send header, command, and then data */
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in_len = SCSI_OFF + lpPRB->SRB_CDBLen + lpPRB->SRB_BufLen;
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sg_hd = (struct sg_header *) malloc(in_len);
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memset(sg_hd, 0, SCSI_OFF);
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memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
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if (lpPRB->SRB_BufLen) {
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memcpy(((BYTE *) sg_hd) + SCSI_OFF + lpPRB->SRB_CDBLen, lpPRB->SRB_BufPointer, lpPRB->SRB_BufLen);
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}
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}
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else {
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/* send header and command - no data */
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in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
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sg_hd = (struct sg_header *) malloc(in_len);
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memset(sg_hd, 0, SCSI_OFF);
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memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
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}
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if (TARGET_TO_HOST(lpPRB)) {
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out_len = SCSI_OFF + lpPRB->SRB_BufLen;
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sg_reply_hdr = (struct sg_header *) malloc(out_len);
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memset(sg_reply_hdr, 0, SCSI_OFF);
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sg_hd->reply_len = out_len;
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}
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else {
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out_len = SCSI_OFF;
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sg_reply_hdr = (struct sg_header *) malloc(out_len);
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memset(sg_reply_hdr, 0, SCSI_OFF);
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sg_hd->reply_len = out_len;
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}
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status = write(fd, sg_hd, in_len);
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if (status < 0 || status != in_len) {
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int save_error = errno;
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WARN(aspi, "Not enough bytes written to scsi device bytes=%d .. %d\n", in_len, status);
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if (status < 0) {
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if (save_error == ENOMEM) {
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MSG("ASPI: Linux generic scsi driver\n You probably need to re-compile your kernel with a larger SG_BIG_BUFF value (sg.h)\n Suggest 130560\n");
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}
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#ifdef HAVE_STRERROR
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WARN(aspi, "error:= '%s'\n", strerror(save_error));
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#else
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WARN(aspi, "error:= %d\n", save_error);
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#endif
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}
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goto error_exit;
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}
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status = read(fd, sg_reply_hdr, out_len);
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if (status < 0 || status != out_len) {
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WARN(aspi, "not enough bytes read from scsi device%d\n", status);
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goto error_exit;
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}
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if (sg_reply_hdr->result != 0) {
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error_code = sg_reply_hdr->result;
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WARN(aspi, "reply header error (%d)\n", sg_reply_hdr->result);
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goto error_exit;
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}
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if (TARGET_TO_HOST(lpPRB) && lpPRB->SRB_BufLen) {
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memcpy(lpPRB->SRB_BufPointer, sg_reply_hdr + 1, lpPRB->SRB_BufLen);
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}
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/* copy in sense buffer to amount that is available in client */
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if (lpPRB->SRB_SenseLen) {
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int sense_len = lpPRB->SRB_SenseLen;
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if (lpPRB->SRB_SenseLen > 16)
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sense_len = 16;
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memcpy(SENSE_BUFFER(lpPRB), &sg_reply_hdr->sense_buffer[0], sense_len);
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}
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lpPRB->SRB_Status = SS_COMP;
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lpPRB->SRB_HaStat = HASTAT_OK;
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lpPRB->SRB_TargStat = STATUS_GOOD;
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/* now do posting */
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if (lpPRB->SRB_PostProc) {
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if (ASPI_POSTING(lpPRB)) {
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TRACE(aspi, "Post Routine (%lx) called\n", (DWORD) lpPRB->SRB_PostProc);
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(*lpPRB->SRB_PostProc)(lpPRB);
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}
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else
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if (lpPRB->SRB_Flags & SRB_EVENT_NOTIFY) {
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TRACE(aspi, "Setting event %04x\n", (HANDLE)lpPRB->SRB_PostProc);
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SetEvent((HANDLE)lpPRB->SRB_PostProc); /* FIXME: correct ? */
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}
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}
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free(sg_reply_hdr);
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free(sg_hd);
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ASPI_DebugPrintResult(lpPRB);
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return SS_COMP;
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error_exit:
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if (error_code == EBUSY) {
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lpPRB->SRB_Status = SS_ASPI_IS_BUSY;
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TRACE(aspi, "Device busy\n");
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}
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else {
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WARN(aspi, "Failed\n");
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lpPRB->SRB_Status = SS_ERR;
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}
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/* I'm not sure exactly error codes work here
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* We probably should set lpPRB->SRB_TargStat, SRB_HaStat ?
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*/
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WARN(aspi, "error_exit\n");
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free(sg_reply_hdr);
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free(sg_hd);
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return lpPRB->SRB_Status;
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}
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#endif
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/*******************************************************************
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* GetASPI32SupportInfo32 [WNASPI32.0]
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*
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* Checks if the ASPI subsystem is initialized correctly.
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*
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* RETURNS
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* HIWORD: 0.
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* HIBYTE of LOWORD: status (SS_COMP or SS_FAILED_INIT)
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* LOBYTE of LOWORD: # of host adapters.
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*/
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DWORD WINAPI GetASPI32SupportInfo()
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{
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return ((SS_COMP << 8) | 1); /* FIXME: get # of host adapters installed */
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}
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/***********************************************************************
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* SendASPI32Command32 (WNASPI32.1)
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*/
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DWORD __cdecl SendASPI32Command(LPSRB lpSRB)
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{
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#ifdef linux
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switch (lpSRB->common.SRB_Cmd) {
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case SC_HA_INQUIRY:
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lpSRB->inquiry.SRB_Status = SS_COMP; /* completed successfully */
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lpSRB->inquiry.HA_Count = 1; /* not always */
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lpSRB->inquiry.HA_SCSI_ID = 7; /* not always ID 7 */
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strcat(lpSRB->inquiry.HA_ManagerId, "ASPI for WIN32"); /* max 15 chars, don't change */
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strcat(lpSRB->inquiry.HA_Identifier, "Wine host"); /* FIXME: return host adapter name */
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memset(lpSRB->inquiry.HA_Unique, 0, 16); /* default HA_Unique content */
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lpSRB->inquiry.HA_Unique[6] = 0x02; /* Maximum Transfer Length (128K, Byte> 4-7) */
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FIXME(aspi, "ASPI: Partially implemented SC_HA_INQUIRY for adapter %d.\n", lpSRB->inquiry.SRB_HaId);
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return SS_COMP;
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case SC_GET_DEV_TYPE:
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FIXME(aspi, "Not implemented SC_GET_DEV_TYPE\n");
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break;
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case SC_EXEC_SCSI_CMD:
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return ASPI_ExecScsiCmd(&lpSRB->cmd);
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break;
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case SC_RESET_DEV:
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FIXME(aspi, "Not implemented SC_RESET_DEV\n");
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break;
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default:
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WARN(aspi, "Unknown command %d\n", lpSRB->common.SRB_Cmd);
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}
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return SS_INVALID_SRB;
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#else
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return SS_INVALID_SRB;
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#endif
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}
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/***********************************************************************
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* GetASPI32DLLVersion32 (WNASPI32.3)
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*/
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DWORD WINAPI GetASPI32DLLVersion()
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{
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#ifdef linux
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return (DWORD)1;
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#else
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return (DWORD)0;
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#endif
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}
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