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base/SOURCES/0008-SCSI-add-a-safe-functi...

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From 704e0f6448f4a9ce0c4c9a030679ab97a37850e8 Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Sun, 12 May 2013 13:57:15 -0700
Subject: [RHEL7 libiscsi PATCH 08/18] SCSI: add a safe function to read a byte from the datain
buffer and use it throughout the unmarshalling code
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry-picked from upstream commit 704e0f6448f4a9ce0c4c9a030679ab97a37850e8)
---
lib/scsi-lowlevel.c | 302 ++++++++++++++++++++++++++++------------------------
1 file changed, 163 insertions(+), 139 deletions(-)
diff --git a/lib/scsi-lowlevel.c b/lib/scsi-lowlevel.c
index 85f7b1d..1f51f32 100644
--- a/lib/scsi-lowlevel.c
+++ b/lib/scsi-lowlevel.c
@@ -274,6 +274,16 @@ task_get_uint16(struct scsi_task *task, int offset)
}
}
+static inline uint8_t
+task_get_uint8(struct scsi_task *task, int offset)
+{
+ if (offset <= task->datain.size - 1) {
+ return task->datain.data[offset];
+ } else {
+ return 0;
+ }
+}
+
inline void
scsi_set_uint64(unsigned char *c, uint64_t v)
{
@@ -501,49 +511,49 @@ scsi_readtoc_desc_unmarshall(struct scsi_task *task, struct scsi_readtoc_list *l
switch(scsi_readtoc_format(task)) {
case SCSI_READ_TOC:
list->desc[i].desc.toc.adr
- = task->datain.data[4+8*i+1] & 0xf0;
+ = task_get_uint8(task, 4 + 8 * i + 1) & 0xf0;
list->desc[i].desc.toc.control
- = task->datain.data[4+8*i+1] & 0x0f;
+ = task_get_uint8(task, 4 + 8 * i + 1) & 0x0f;
list->desc[i].desc.toc.track
- = task->datain.data[4+8*i+2];
+ = task_get_uint8(task, 4 + 8 * i + 2);
list->desc[i].desc.toc.lba
= task_get_uint32(task, 4 + 8 * i + 4);
break;
case SCSI_READ_SESSION_INFO:
list->desc[i].desc.ses.adr
- = task->datain.data[4+8*i+1] & 0xf0;
+ = task_get_uint8(task, 4 + 8 * i + 1) & 0xf0;
list->desc[i].desc.ses.control
- = task->datain.data[4+8*i+1] & 0x0f;
+ = task_get_uint8(task, 4 + 8 * i + 1) & 0x0f;
list->desc[i].desc.ses.first_in_last
- = task->datain.data[4+8*i+2];
+ = task_get_uint8(task, 4 + 8 * i + 2);
list->desc[i].desc.ses.lba
= task_get_uint32(task, 4 + 8 * i + 4);
break;
case SCSI_READ_FULL_TOC:
list->desc[i].desc.full.session
- = task->datain.data[4+11*i+0] & 0xf0;
+ = task_get_uint8(task, 4 + 11 * i + 0) & 0xf0;
list->desc[i].desc.full.adr
- = task->datain.data[4+11*i+1] & 0xf0;
+ = task_get_uint8(task, 4 + 11 * i + 1) & 0xf0;
list->desc[i].desc.full.control
- = task->datain.data[4+11*i+1] & 0x0f;
+ = task_get_uint8(task, 4 + 11 * i + 1) & 0x0f;
list->desc[i].desc.full.tno
- = task->datain.data[4+11*i+2];
+ = task_get_uint8(task, 4 + 11 * i + 2);
list->desc[i].desc.full.point
- = task->datain.data[4+11*i+3];
+ = task_get_uint8(task, 4 + 11 * i + 3);
list->desc[i].desc.full.min
- = task->datain.data[4+11*i+4];
+ = task_get_uint8(task, 4 + 11 * i + 4);
list->desc[i].desc.full.sec
- = task->datain.data[4+11*i+5];
+ = task_get_uint8(task, 4 + 11 * i + 5);
list->desc[i].desc.full.frame
- = task->datain.data[4+11*i+6];
+ = task_get_uint8(task, 4 + 11 * i + 6);
list->desc[i].desc.full.zero
- = task->datain.data[4+11*i+7];
+ = task_get_uint8(task, 4 + 11 * i + 7);
list->desc[i].desc.full.pmin
- = task->datain.data[4+11*i+8];
+ = task_get_uint8(task, 4 + 11 * i + 8);
list->desc[i].desc.full.psec
- = task->datain.data[4+11*i+9];
+ = task_get_uint8(task, 4 + 11 * i + 9);
list->desc[i].desc.full.pframe
- = task->datain.data[4+11*i+10];
+ = task_get_uint8(task, 4 + 11 * i + 10);
break;
default:
break;
@@ -580,8 +590,8 @@ scsi_readtoc_datain_unmarshall(struct scsi_task *task)
}
list->num = num_desc;
- list->first = task->datain.data[2];
- list->last = task->datain.data[3];
+ list->first = task_get_uint8(task, 2);
+ list->last = task_get_uint8(task, 3);
for (i = 0; i < num_desc; i++) {
scsi_readtoc_desc_unmarshall(task, list, i);
@@ -655,12 +665,12 @@ scsi_serviceactionin_datain_unmarshall(struct scsi_task *task)
rc16->returned_lba = task_get_uint32(task, 0);
rc16->returned_lba = (rc16->returned_lba << 32) | task_get_uint32(task, 4);
rc16->block_length = task_get_uint32(task, 8);
- rc16->p_type = (task->datain.data[12] >> 1) & 0x07;
- rc16->prot_en = task->datain.data[12] & 0x01;
- rc16->p_i_exp = (task->datain.data[13] >> 4) & 0x0f;
- rc16->lbppbe = task->datain.data[13] & 0x0f;
- rc16->lbpme = !!(task->datain.data[14] & 0x80);
- rc16->lbprz = !!(task->datain.data[14] & 0x40);
+ rc16->p_type = (task_get_uint8(task, 12) >> 1) & 0x07;
+ rc16->prot_en = task_get_uint8(task, 12) & 0x01;
+ rc16->p_i_exp = (task_get_uint8(task, 13) >> 4) & 0x0f;
+ rc16->lbppbe = task_get_uint8(task, 13) & 0x0f;
+ rc16->lbpme = !!(task_get_uint8(task, 14) & 0x80);
+ rc16->lbprz = !!(task_get_uint8(task, 14) & 0x40);
rc16->lalba = task_get_uint16(task, 14) & 0x3fff;
return rc16;
}
@@ -694,7 +704,7 @@ scsi_serviceactionin_datain_unmarshall(struct scsi_task *task)
gls->descriptors[i].num_blocks = task_get_uint32(task, 8 + i * sizeof(struct scsi_lba_status_descriptor) + 8);
- gls->descriptors[i].provisioning = task->datain.data[8 + i * sizeof(struct scsi_lba_status_descriptor) + 12] & 0x0f;
+ gls->descriptors[i].provisioning = task_get_uint8(task, 8 + i * sizeof(struct scsi_lba_status_descriptor) + 12) & 0x0f;
}
return gls;
@@ -771,7 +781,7 @@ scsi_persistentreservein_datain_unmarshall(struct scsi_task *task)
rr->reserved = 1;
rr->reservation_key =
task_get_uint64(task, 8);
- rr->pr_type = task->datain.data[21] & 0xff;
+ rr->pr_type = task_get_uint8(task, 21) & 0xff;
}
return rr;
@@ -782,12 +792,12 @@ scsi_persistentreservein_datain_unmarshall(struct scsi_task *task)
return NULL;
}
rc->length = task_get_uint16(task, 0);
- rc->crh = !!(task->datain.data[2] & 0x10);
- rc->sip_c = !!(task->datain.data[2] & 0x08);
- rc->atp_c = !!(task->datain.data[2] & 0x04);
- rc->ptpl_c = !!(task->datain.data[2] & 0x01);
- rc->tmv = !!(task->datain.data[3] & 0x80);
- rc->allow_commands = task->datain.data[3] >> 4;
+ rc->crh = !!(task_get_uint8(task, 2) & 0x10);
+ rc->sip_c = !!(task_get_uint8(task, 2) & 0x08);
+ rc->atp_c = !!(task_get_uint8(task, 2) & 0x04);
+ rc->ptpl_c = !!(task_get_uint8(task, 2) & 0x01);
+ rc->tmv = !!(task_get_uint8(task, 3) & 0x80);
+ rc->allow_commands = task_get_uint8(task, 3) >> 4;
rc->persistent_reservation_type_mask = task_get_uint16(task, 4);
return rc;
@@ -1003,14 +1013,14 @@ static int
scsi_inquiry_datain_getfullsize(struct scsi_task *task)
{
if (scsi_inquiry_evpd_set(task) == 0) {
- return task->datain.data[4] + 5;
+ return task_get_uint8(task, 4) + 5;
}
switch (scsi_inquiry_page_code(task)) {
case SCSI_INQUIRY_PAGECODE_SUPPORTED_VPD_PAGES:
case SCSI_INQUIRY_PAGECODE_BLOCK_DEVICE_CHARACTERISTICS:
case SCSI_INQUIRY_PAGECODE_UNIT_SERIAL_NUMBER:
- return task->datain.data[3] + 4;
+ return task_get_uint8(task, 3) + 4;
case SCSI_INQUIRY_PAGECODE_DEVICE_IDENTIFICATION:
case SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS:
case SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING:
@@ -1030,28 +1040,28 @@ scsi_inquiry_unmarshall_standard(struct scsi_task *task)
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->rmb = !!(task->datain.data[1]&0x80);
- inq->version = task->datain.data[2];
- inq->normaca = !!(task->datain.data[3]&0x20);
- inq->hisup = !!(task->datain.data[3]&0x10);
- inq->response_data_format = task->datain.data[3]&0x0f;
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->rmb = !!(task_get_uint8(task, 1) & 0x80);
+ inq->version = task_get_uint8(task, 2);
+ inq->normaca = !!(task_get_uint8(task, 3) & 0x20);
+ inq->hisup = !!(task_get_uint8(task, 3) & 0x10);
+ inq->response_data_format = task_get_uint8(task, 3) & 0x0f;
- inq->additional_length = task->datain.data[4];
+ inq->additional_length = task_get_uint8(task, 4);
- inq->sccs = !!(task->datain.data[5]&0x80);
- inq->acc = !!(task->datain.data[5]&0x40);
- inq->tpgs = (task->datain.data[5]>>4)&0x03;
- inq->threepc = !!(task->datain.data[5]&0x08);
- inq->protect = !!(task->datain.data[5]&0x01);
+ inq->sccs = !!(task_get_uint8(task, 5) & 0x80);
+ inq->acc = !!(task_get_uint8(task, 5) & 0x40);
+ inq->tpgs = (task_get_uint8(task, 5) >> 4) & 0x03;
+ inq->threepc = !!(task_get_uint8(task, 5) & 0x08);
+ inq->protect = !!(task_get_uint8(task, 5) & 0x01);
- inq->encserv = !!(task->datain.data[6]&0x40);
- inq->multip = !!(task->datain.data[6]&0x10);
- inq->addr16 = !!(task->datain.data[6]&0x01);
- inq->wbus16 = !!(task->datain.data[7]&0x20);
- inq->sync = !!(task->datain.data[7]&0x10);
- inq->cmdque = !!(task->datain.data[7]&0x02);
+ inq->encserv = !!(task_get_uint8(task, 6) & 0x40);
+ inq->multip = !!(task_get_uint8(task, 6) & 0x10);
+ inq->addr16 = !!(task_get_uint8(task, 6) & 0x01);
+ inq->wbus16 = !!(task_get_uint8(task, 7) & 0x20);
+ inq->sync = !!(task_get_uint8(task, 7) & 0x10);
+ inq->cmdque = !!(task_get_uint8(task, 7) & 0x02);
memcpy(&inq->vendor_identification[0],
&task->datain.data[8], 8);
@@ -1060,9 +1070,9 @@ scsi_inquiry_unmarshall_standard(struct scsi_task *task)
memcpy(&inq->product_revision_level[0],
&task->datain.data[32], 4);
- inq->clocking = (task->datain.data[56]>>2)&0x03;
- inq->qas = !!(task->datain.data[56]&0x02);
- inq->ius = !!(task->datain.data[56]&0x01);
+ inq->clocking = (task_get_uint8(task, 56) >> 2) & 0x03;
+ inq->qas = !!(task_get_uint8(task, 56) & 0x02);
+ inq->ius = !!(task_get_uint8(task, 56) & 0x01);
return inq;
}
@@ -1079,11 +1089,11 @@ scsi_inquiry_unmarshall_supported_pages(struct scsi_task *task)
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
- inq->num_pages = task->datain.data[3];
+ inq->num_pages = task_get_uint8(task, 3);
inq->pages = scsi_malloc(task, inq->num_pages);
if (inq->pages == NULL) {
free (inq);
@@ -1101,17 +1111,17 @@ scsi_inquiry_unmarshall_unit_serial_number(struct scsi_task* task)
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
- inq->usn = scsi_malloc(task, task->datain.data[3]+1);
+ inq->usn = scsi_malloc(task, task_get_uint8(task, 3) + 1);
if (inq->usn == NULL) {
free(inq);
return NULL;
}
- memcpy(inq->usn, &task->datain.data[4], task->datain.data[3]);
- inq->usn[task->datain.data[3]] = 0;
+ memcpy(inq->usn, &task->datain.data[4], task_get_uint8(task, 3));
+ inq->usn[task_get_uint8(task, 3)] = 0;
return inq;
}
@@ -1119,16 +1129,16 @@ static struct scsi_inquiry_device_identification *
scsi_inquiry_unmarshall_device_identification(struct scsi_task *task)
{
struct scsi_inquiry_device_identification *inq = scsi_malloc(task,
- sizeof(*inq));
+ sizeof(*inq));
int remaining = task_get_uint16(task, 2);
unsigned char *dptr;
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
dptr = &task->datain.data[4];
while (remaining > 0) {
@@ -1183,12 +1193,12 @@ scsi_inquiry_unmarshall_block_limits(struct scsi_task *task)
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
- inq->wsnz = task->datain.data[4] & 0x01;
- inq->max_cmp = task->datain.data[5];
+ inq->wsnz = task_get_uint8(task, 4) & 0x01;
+ inq->max_cmp = task_get_uint8(task, 5);
inq->opt_gran = task_get_uint16(task, 6);
inq->max_xfer_len = task_get_uint32(task, 8);
inq->opt_xfer_len = task_get_uint32(task, 12);
@@ -1196,7 +1206,7 @@ scsi_inquiry_unmarshall_block_limits(struct scsi_task *task)
inq->max_unmap = task_get_uint32(task, 20);
inq->max_unmap_bdc = task_get_uint32(task, 24);
inq->opt_unmap_gran = task_get_uint32(task, 28);
- inq->ugavalid = !!(task->datain.data[32]&0x80);
+ inq->ugavalid = !!(task_get_uint8(task, 32)&0x80);
inq->unmap_gran_align = task_get_uint32(task, 32) & 0x7fffffff;
inq->max_ws_len = task_get_uint32(task, 36);
inq->max_ws_len = (inq->max_ws_len << 32)
@@ -1213,9 +1223,9 @@ scsi_inquiry_unmarshall_block_device_characteristics(struct scsi_task *task)
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
inq->medium_rotation_rate = task_get_uint16(task, 4);
return inq;
@@ -1229,18 +1239,18 @@ scsi_inquiry_unmarshall_logical_block_provisioning(struct scsi_task *task)
if (inq == NULL) {
return NULL;
}
- inq->qualifier = (task->datain.data[0]>>5)&0x07;
- inq->device_type = task->datain.data[0]&0x1f;
- inq->pagecode = task->datain.data[1];
+ inq->qualifier = (task_get_uint8(task, 0) >> 5) & 0x07;
+ inq->device_type = task_get_uint8(task, 0) & 0x1f;
+ inq->pagecode = task_get_uint8(task, 1);
- inq->threshold_exponent = task->datain.data[4];
- inq->lbpu = !!(task->datain.data[5] & 0x80);
- inq->lbpws = !!(task->datain.data[5] & 0x40);
- inq->lbpws10 = !!(task->datain.data[5] & 0x20);
- inq->lbprz = !!(task->datain.data[5] & 0x04);
- inq->anc_sup = !!(task->datain.data[5] & 0x02);
- inq->dp = !!(task->datain.data[5] & 0x01);
- inq->provisioning_type = task->datain.data[6] & 0x07;
+ inq->threshold_exponent = task_get_uint8(task, 4);
+ inq->lbpu = !!(task_get_uint8(task, 5) & 0x80);
+ inq->lbpws = !!(task_get_uint8(task, 5) & 0x40);
+ inq->lbpws10 = !!(task_get_uint8(task, 5) & 0x20);
+ inq->lbprz = !!(task_get_uint8(task, 5) & 0x04);
+ inq->anc_sup = !!(task_get_uint8(task, 5) & 0x02);
+ inq->dp = !!(task_get_uint8(task, 5) & 0x01);
+ inq->provisioning_type = task_get_uint8(task, 6) & 0x07;
return inq;
}
@@ -2062,7 +2072,7 @@ scsi_modesense6_datain_getfullsize(struct scsi_task *task)
{
int len;
- len = task->datain.data[0] + 1;
+ len = task_get_uint8(task, 0) + 1;
return len;
}
@@ -2070,59 +2080,73 @@ scsi_modesense6_datain_getfullsize(struct scsi_task *task)
static void
scsi_parse_mode_caching(struct scsi_task *task, int pos, struct scsi_mode_page *mp)
{
- mp->caching.ic = task->datain.data[pos] & 0x80;
- mp->caching.abpf = task->datain.data[pos] & 0x40;
- mp->caching.cap = task->datain.data[pos] & 0x20;
- mp->caching.disc = task->datain.data[pos] & 0x10;
- mp->caching.size = task->datain.data[pos] & 0x08;
- mp->caching.wce = task->datain.data[pos] & 0x04;
- mp->caching.mf = task->datain.data[pos] & 0x02;
- mp->caching.rcd = task->datain.data[pos] & 0x01;
-
- mp->caching.demand_read_retention_priority = (task->datain.data[pos+1] >> 4) & 0x0f;
- mp->caching.write_retention_priority = task->datain.data[pos+1] & 0x0f;
-
- mp->caching.disable_prefetch_transfer_length = task_get_uint16(task, pos + 2);
+ mp->caching.ic = task_get_uint8(task, pos) & 0x80;
+ mp->caching.abpf = task_get_uint8(task, pos) & 0x40;
+ mp->caching.cap = task_get_uint8(task, pos) & 0x20;
+ mp->caching.disc = task_get_uint8(task, pos) & 0x10;
+ mp->caching.size = task_get_uint8(task, pos) & 0x08;
+ mp->caching.wce = task_get_uint8(task, pos) & 0x04;
+ mp->caching.mf = task_get_uint8(task, pos) & 0x02;
+ mp->caching.rcd = task_get_uint8(task, pos) & 0x01;
+
+ mp->caching.demand_read_retention_priority =
+ (task_get_uint8(task, pos + 1) >> 4) & 0x0f;
+ mp->caching.write_retention_priority =
+ task_get_uint8(task, pos + 1) & 0x0f;
+
+ mp->caching.disable_prefetch_transfer_length =
+ task_get_uint16(task, pos + 2);
mp->caching.minimum_prefetch = task_get_uint16(task, pos + 4);
mp->caching.maximum_prefetch = task_get_uint16(task, pos + 6);
mp->caching.maximum_prefetch_ceiling = task_get_uint16(task, pos + 8);
- mp->caching.fsw = task->datain.data[pos+10] & 0x80;
- mp->caching.lbcss = task->datain.data[pos+10] & 0x40;
- mp->caching.dra = task->datain.data[pos+10] & 0x20;
- mp->caching.nv_dis = task->datain.data[pos+10] & 0x01;
+ mp->caching.fsw = task_get_uint8(task, pos + 10) & 0x80;
+ mp->caching.lbcss = task_get_uint8(task, pos + 10) & 0x40;
+ mp->caching.dra = task_get_uint8(task, pos + 10) & 0x20;
+ mp->caching.nv_dis = task_get_uint8(task, pos + 10) & 0x01;
- mp->caching.number_of_cache_segments = task->datain.data[pos+11];
+ mp->caching.number_of_cache_segments = task_get_uint8(task, pos + 11);
mp->caching.cache_segment_size = task_get_uint16(task, pos + 12);
}
static void
scsi_parse_mode_disconnect_reconnect(struct scsi_task *task, int pos, struct scsi_mode_page *mp)
{
- mp->disconnect_reconnect.buffer_full_ratio = task->datain.data[pos];
- mp->disconnect_reconnect.buffer_empty_ratio = task->datain.data[pos+1];
- mp->disconnect_reconnect.bus_inactivity_limit = task_get_uint16(task, pos + 2);
- mp->disconnect_reconnect.disconnect_time_limit = task_get_uint16(task, pos + 4);
- mp->disconnect_reconnect.connect_time_limit = task_get_uint16(task, pos + 6);
- mp->disconnect_reconnect.maximum_burst_size = task_get_uint16(task, pos + 8);
- mp->disconnect_reconnect.emdp = task->datain.data[pos+10] & 0x80;
- mp->disconnect_reconnect.fair_arbitration = (task->datain.data[pos+10]>>4) & 0x0f;
- mp->disconnect_reconnect.dimm = task->datain.data[pos+10] & 0x08;
- mp->disconnect_reconnect.dtdc = task->datain.data[pos+10] & 0x07;
- mp->disconnect_reconnect.first_burst_size = task_get_uint16(task, pos + 12);
+ mp->disconnect_reconnect.buffer_full_ratio =
+ task_get_uint8(task, pos);
+ mp->disconnect_reconnect.buffer_empty_ratio =
+ task_get_uint8(task, pos + 1);
+ mp->disconnect_reconnect.bus_inactivity_limit =
+ task_get_uint16(task, pos + 2);
+ mp->disconnect_reconnect.disconnect_time_limit =
+ task_get_uint16(task, pos + 4);
+ mp->disconnect_reconnect.connect_time_limit =
+ task_get_uint16(task, pos + 6);
+ mp->disconnect_reconnect.maximum_burst_size =
+ task_get_uint16(task, pos + 8);
+ mp->disconnect_reconnect.emdp =
+ task_get_uint8(task, pos + 10) & 0x80;
+ mp->disconnect_reconnect.fair_arbitration =
+ (task_get_uint8(task, pos + 10) >> 4) & 0x0f;
+ mp->disconnect_reconnect.dimm =
+ task_get_uint8(task, pos + 10) & 0x08;
+ mp->disconnect_reconnect.dtdc =
+ task_get_uint8(task, pos + 10) & 0x07;
+ mp->disconnect_reconnect.first_burst_size =
+ task_get_uint16(task, pos + 12);
}
static void
scsi_parse_mode_informational_exceptions_control(struct scsi_task *task, int pos, struct scsi_mode_page *mp)
{
- mp->iec.perf = task->datain.data[pos] & 0x80;
- mp->iec.ebf = task->datain.data[pos] & 0x20;
- mp->iec.ewasc = task->datain.data[pos] & 0x10;
- mp->iec.dexcpt = task->datain.data[pos] & 0x08;
- mp->iec.test = task->datain.data[pos] & 0x04;
- mp->iec.ebackerr = task->datain.data[pos] & 0x02;
- mp->iec.logerr = task->datain.data[pos] & 0x01;
- mp->iec.mrie = task->datain.data[pos+1] & 0x0f;
+ mp->iec.perf = task_get_uint8(task, pos) & 0x80;
+ mp->iec.ebf = task_get_uint8(task, pos) & 0x20;
+ mp->iec.ewasc = task_get_uint8(task, pos) & 0x10;
+ mp->iec.dexcpt = task_get_uint8(task, pos) & 0x08;
+ mp->iec.test = task_get_uint8(task, pos) & 0x04;
+ mp->iec.ebackerr = task_get_uint8(task, pos) & 0x02;
+ mp->iec.logerr = task_get_uint8(task, pos) & 0x01;
+ mp->iec.mrie = task_get_uint8(task, pos + 1) & 0x0f;
mp->iec.interval_timer = task_get_uint32(task, pos + 2);
mp->iec.report_count = task_get_uint32(task, pos + 6);
}
@@ -2146,10 +2170,10 @@ scsi_modesense_datain_unmarshall(struct scsi_task *task)
return NULL;
}
- ms->mode_data_length = task->datain.data[0];
- ms->medium_type = task->datain.data[1];
- ms->device_specific_parameter = task->datain.data[2];
- ms->block_descriptor_length = task->datain.data[3];
+ ms->mode_data_length = task_get_uint8(task, 0);
+ ms->medium_type = task_get_uint8(task, 1);
+ ms->device_specific_parameter = task_get_uint8(task, 2);
+ ms->block_descriptor_length = task_get_uint8(task, 3);
ms->pages = NULL;
if (ms->mode_data_length + 1 > task->datain.size) {
@@ -2164,18 +2188,18 @@ scsi_modesense_datain_unmarshall(struct scsi_task *task)
if (mp == NULL) {
return ms;
}
- mp->ps = task->datain.data[pos] & 0x80;
- mp->spf = task->datain.data[pos] & 0x40;
- mp->page_code = task->datain.data[pos] & 0x3f;
+ mp->ps = task_get_uint8(task, pos) & 0x80;
+ mp->spf = task_get_uint8(task, pos) & 0x40;
+ mp->page_code = task_get_uint8(task, pos) & 0x3f;
pos++;
if (mp->spf) {
- mp->subpage_code = task->datain.data[pos++];
+ mp->subpage_code = task_get_uint8(task, pos++);
mp->len = task_get_uint16(task, pos);
pos += 2;
} else {
mp->subpage_code = 0;
- mp->len = task->datain.data[pos++];
+ mp->len = task_get_uint8(task, pos++);
}
switch (mp->page_code) {
--
1.8.1.4