Revision 1d4db89c hw/scsi-disk.c
| b/hw/scsi-disk.c | ||
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* This code is licenced under the LGPL. |
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* |
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* Note that this file only handles the SCSI architecture model and device |
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* commands. Emultion of interface/link layer protocols is handled by |
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* the host adapter emulation.
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* commands. Emulation of interface/link layer protocols is handled by
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* the host adapter emulator.
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*/ |
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//#define DEBUG_SCSI |
| ... | ... | |
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break; |
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case 0x12: |
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DPRINTF("Inquiry (len %d)\n", len);
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if (len < 36) {
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BADF("Inquiry buffer too small (%d)\n", len);
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if (buf[1] & 0x2) {
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/* Command support data - optional, not implemented */ |
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BADF("optional INQUIRY command support request not implemented\n");
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goto fail; |
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} |
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else if (buf[1] & 0x1) {
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/* Vital product data */ |
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uint8_t page_code = buf[2]; |
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if (len < 4) {
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BADF("Error: Inquiry (EVPD[%02X]) buffer size %d is "
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"less than 4\n", page_code, len); |
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goto fail; |
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} |
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switch (page_code) {
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case 0x00: |
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{
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/* Supported page codes, mandatory */ |
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DPRINTF("Inquiry EVPD[Supported pages] "
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"buffer size %d\n", len); |
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r->buf_len = 0; |
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if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
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outbuf[r->buf_len++] = 5; |
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} else {
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outbuf[r->buf_len++] = 0; |
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} |
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outbuf[r->buf_len++] = 0x00; // this page |
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outbuf[r->buf_len++] = 0x00; |
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outbuf[r->buf_len++] = 3; // number of pages |
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outbuf[r->buf_len++] = 0x00; // list of supported pages (this page) |
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outbuf[r->buf_len++] = 0x80; // unit serial number |
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outbuf[r->buf_len++] = 0x83; // device identification |
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} |
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break; |
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case 0x80: |
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{
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/* Device serial number, optional */ |
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if (len < 4) {
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BADF("Error: EVPD[Serial number] Inquiry buffer "
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"size %d too small, %d needed\n", len, 4); |
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goto fail; |
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} |
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DPRINTF("Inquiry EVPD[Serial number] buffer size %d\n", len);
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r->buf_len = 0; |
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/* Supported page codes */ |
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if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
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outbuf[r->buf_len++] = 5; |
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} else {
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outbuf[r->buf_len++] = 0; |
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} |
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outbuf[r->buf_len++] = 0x80; // this page |
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outbuf[r->buf_len++] = 0x00; |
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outbuf[r->buf_len++] = 0x01; // 1 byte data follow |
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outbuf[r->buf_len++] = '0'; // 1 byte data follow |
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} |
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break; |
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case 0x83: |
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{
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/* Device identification page, mandatory */ |
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int max_len = 255 - 8; |
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int id_len = strlen(bdrv_get_device_name(s->bdrv)); |
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if (id_len > max_len) |
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id_len = max_len; |
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DPRINTF("Inquiry EVPD[Device identification] "
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"buffer size %d\n", len); |
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r->buf_len = 0; |
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if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
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outbuf[r->buf_len++] = 5; |
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} else {
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outbuf[r->buf_len++] = 0; |
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} |
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outbuf[r->buf_len++] = 0x83; // this page |
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outbuf[r->buf_len++] = 0x00; |
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outbuf[r->buf_len++] = 3 + id_len; |
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outbuf[r->buf_len++] = 0x2; // ASCII |
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outbuf[r->buf_len++] = 0; // not officially assigned |
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outbuf[r->buf_len++] = 0; // reserved |
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outbuf[r->buf_len++] = id_len; // length of data following |
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memcpy(&outbuf[r->buf_len], |
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bdrv_get_device_name(s->bdrv), id_len); |
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r->buf_len += id_len; |
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} |
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break; |
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default: |
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BADF("Error: unsupported Inquiry (EVPD[%02X]) "
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"buffer size %d\n", page_code, len); |
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goto fail; |
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} |
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/* done with EVPD */ |
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break; |
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} |
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else {
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/* Standard INQUIRY data */ |
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if (buf[2] != 0) {
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BADF("Error: Inquiry (STANDARD) page or code "
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"is non-zero [%02X]\n", buf[2]); |
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goto fail; |
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} |
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/* PAGE CODE == 0 */ |
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if (len < 5) {
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BADF("Error: Inquiry (STANDARD) buffer size %d "
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"is less than 5\n", len); |
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goto fail; |
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} |
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if (len < 36) {
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BADF("Error: Inquiry (STANDARD) buffer size %d "
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"is less than 36 (TODO: only 5 required)\n", len); |
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} |
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} |
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memset(outbuf, 0, 36); |
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if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
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