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Added PROTECT_IMAGE, UNPROTECT_IMAGE

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This commit is contained in:
Uwe Seimet 2021-09-17 11:11:22 +02:00
parent 9266852ae2
commit 7018ccac64
5 changed files with 78 additions and 21 deletions
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4
doc/rasctl.1
View File

@ -5,6 +5,7 @@ rasctl \- Sends management commands to the rascsi process
.B rasctl
\fB\-l\fR |
\fB\-s\fR |
[\fB\-d\fR \fIIMAGE_FOLDER\fR]
[\fB\-g\fR \fILOG_LEVEL\fR]
[\fB\-h\fR \fIHOST\fR]
[\fB\-p\fR \fIPORT\fR]
@ -31,6 +32,9 @@ Note: The command and type arguments are case insensitive. Only the first letter
.BR \-a\fI " "\fIFILENAME:FILESIZE
Create an image file in the default image folder with the specified name and size in bytes.
.TP
.BR \-g\fI " "\fIIMAGE_FOLDER
Set the default image folder.
.TP
.BR \-g\fI " "\fILOG_LEVEL
Set the rascsi log level (trace, debug, info, warn, err, critical, off).
.TP

36
doc/rasctl_man_page.txt
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@ -6,18 +6,19 @@ NAME
rasctl - Sends management commands to the rascsi process
SYNOPSIS
rasctl -l | -s | [-g LOG_LEVEL] [-h HOST] [-p PORT] [-r RESERVED_IDS]
[-v] -i ID [-c CMD] [-f FILE|PARAM] [-n NAME] [-t TYPE] [-u UNIT]
rasctl -l | -s | [-d IMAGE_FOLDER] [-g LOG_LEVEL] [-h HOST] [-p PORT]
[-r RESERVED_IDS] [-v] -i ID [-c CMD] [-f FILE|PARAM] [-n NAME] [-t
TYPE] [-u UNIT]
DESCRIPTION
rasctl Sends commands to the rascsi process to make configuration ad‐
rasctl Sends commands to the rascsi process to make configuration ad‐
justments at runtime or to check the status of the devices.
Either the -i or -l option should be specified at one time. Not both.
You do NOT need root privileges to use rasctl.
Note: The command and type arguments are case insensitive. Only the
Note: The command and type arguments are case insensitive. Only the
first letter of the command/type is evaluated by the tool.
OPTIONS
@ -25,14 +26,17 @@ OPTIONS
Create an image file in the default image folder with the speci‐
fied name and size in bytes.
-g IMAGE_FOLDER
Set the default image folder.
-g LOG_LEVEL
Set the rascsi log level (trace, debug, info, warn, err, criti‐
Set the rascsi log level (trace, debug, info, warn, err, criti‐
cal, off).
-h HOST
The rascsi host to connect to, default is 'localhost'.
-l List all of the devices that are currently being emulated by
-l List all of the devices that are currently being emulated by
RaSCSI, as well as their current status.
-m CURRENT_NAME:NEW_NAME
@ -44,7 +48,7 @@ OPTIONS
-r RESERVED_IDS
Comma-separated list of IDs to reserve.
-s Display server-side settings like available images or supported
-s Display server-side settings like available images or supported
device types.
-v Display the rascsi version.
@ -62,7 +66,7 @@ OPTIONS
d(etach): Detach disk
i(nsert): Insert media (removable media devices only)
e(ject): Eject media (removable media devices only)
p(rotect): Write protect the medium (not for CD-ROMs, which
p(rotect): Write protect the medium (not for CD-ROMs, which
are always read-only)
u(nprotect): Remove write protection from the medium (not for
CD-ROMs, which are always read-only)
@ -72,18 +76,18 @@ OPTIONS
-b BLOCK_SIZE
The optional block size. For SCSI drives 512, 1024, 2048 or 4096
bytes, default size is 512 bytes. For SASI drives 256 or 1024
bytes, default size is 512 bytes. For SASI drives 256 or 1024
bytes, default is 256 bytes.
-f FILE|PARAM
Device-specific: Either a path to a disk image file, or a param‐
eter for a non-disk device. See the rascsi(1) man page for per‐
eter for a non-disk device. See the rascsi(1) man page for per‐
mitted file types.
-t TYPE
Specifies the device type. This type overrides the type derived
Specifies the device type. This type overrides the type derived
from the file extension of the specified image. See the
rascsi(1) man page for the available device types. For some
rascsi(1) man page for the available device types. For some
types there are shortcuts (only the first letter is required):
hd: SCSI hard disk drive
rm: SCSI removable media drive
@ -93,16 +97,16 @@ OPTIONS
daynaport: DaynaPORT network adapter
-n VENDOR:PRODUCT:REVISION
The vendor, product and revision for the device, to be returned
The vendor, product and revision for the device, to be returned
with the INQUIRY data. A complete set of name components must be
provided. VENDOR may have up to 8, PRODUCT up to 16, REVISION up
to 4 characters. Padding with blanks to the maxium length is au‐
tomatically applied. Once set the name of a device cannot be
tomatically applied. Once set the name of a device cannot be
changed.
-u UNIT
Unit number (0 or 1). This will default to 0. This option is
only used when there are multiple SCSI devices on a shared SCSI
Unit number (0 or 1). This will default to 0. This option is
only used when there are multiple SCSI devices on a shared SCSI
controller. (This is not common)
EXAMPLES

37
src/raspberrypi/rascsi.cpp
View File

@ -914,6 +914,39 @@ bool CopyImage(int fd, const PbCommand& command)
return ReturnStatus(fd);
}
bool SetImagePermissions(int fd, const PbCommand& command)
{
string filename = GetParam(command, "file");
if (filename.empty()) {
return ReturnStatus(fd, false, "Missing image filename");
}
if (filename.find('/') != string::npos) {
return ReturnStatus(fd, false, "The image filename '" + filename + "' must not contain a path");
}
filename = default_image_folder + "/" + filename;
bool protect = command.operation() == PROTECT_IMAGE;
int permissions = protect ? S_IRUSR | S_IRGRP | S_IROTH : S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
if (chmod(filename.c_str(), permissions) == -1) {
ostringstream error;
error << "Can't " << (protect ? "protect" : "unprotect") << " image file '" << filename << "': " << strerror(errno);
return ReturnStatus(fd, false, error.str());
}
if (protect) {
LOGINFO("%s", string("Protected image file '" + filename + "'").c_str());
}
else {
LOGINFO("%s", string("Unprotected image file '" + filename + "'").c_str());
}
return ReturnStatus(fd);
}
void DetachAll()
{
Device *map[devices.size()];
@ -1381,6 +1414,10 @@ bool ProcessCmd(const int fd, const PbCommand& command)
case COPY_IMAGE:
return CopyImage(fd, command);
case PROTECT_IMAGE:
case UNPROTECT_IMAGE:
return SetImagePermissions(fd, command);
default:
// This is a device-specific command handled below
break;

10
src/raspberrypi/rascsi_interface.proto
View File

@ -104,6 +104,16 @@ enum PbOperation {
// "to": The destination filename, relative to the default image folder. It must not contain a slash.
// The destination filename must not yet exist.
COPY_IMAGE = 18;
// Write-protect an image file.
// Parameters:
// "file": The filename, relative to the default image folder. It must not contain a slash.
PROTECT_IMAGE = 19;
// Make an image file writable.
// Parameters:
// "file": The filename, relative to the default image folder. It must not contain a slash.
UNPROTECT_IMAGE = 20;
}
// The properties supported by a device

12
src/raspberrypi/rasctl.cpp
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@ -532,19 +532,21 @@ int main(int argc, char* argv[])
cerr << "SCSI Target Emulator RaSCSI Controller" << endl;
cerr << "version " << rascsi_get_version_string() << " (" << __DATE__ << ", " << __TIME__ << ")" << endl;
cerr << "Usage: " << argv[0] << " -i ID [-u UNIT] [-c CMD] [-t TYPE] [-b BLOCK_SIZE] [-n NAME] [-f FILE|PARAM] ";
cerr << "[-d DEFAULT_IMAGE_FOLDER] [-g LOG_LEVEL] [-h HOST] [-p PORT] [-r RESERVED_IDS] [-l] [-v]" << endl;
cerr << " where ID := {0|1|2|3|4|5|6|7}" << endl;
cerr << " UNIT := {0|1}, default setting is 0." << endl;
cerr << "[-d IMAGE_FOLDER] [-g LOG_LEVEL] [-h HOST] [-p PORT] [-r RESERVED_IDS] ";
cerr << "[-a FILENAME:FILESIZE] [-w FILENAME] [-m CURRENT_NAME:NEW_NAME] [-x CURRENT_NAME:NEW_NAME] ";
cerr << "[-l] [-v]" << endl;
cerr << " where ID := {0-7}" << endl;
cerr << " UNIT := {0|1}, default is 0" << endl;
cerr << " CMD := {attach|detach|insert|eject|protect|unprotect|show}" << endl;
cerr << " TYPE := {sahd|schd|scrm|sccd|scmo|scbr|scdp} or convenience type {hd|rm|mo|cd|bridge|daynaport}" << endl;
cerr << " BLOCK_SIZE := {256|512|1024|2048|4096) bytes per hard disk drive block" << endl;
cerr << " NAME := name of device to attach (VENDOR:PRODUCT:REVISION)" << endl;
cerr << " FILE|PARAM := image file path or device-specific parameter" << endl;
cerr << " DEFAULT_IMAGE_FOLDER := default location for image files, default is '~/images'" << endl;
cerr << " IMAGE_FOLDER := default location for image files, default is '~/images'" << endl;
cerr << " HOST := rascsi host to connect to, default is 'localhost'" << endl;
cerr << " PORT := rascsi port to connect to, default is 6868" << endl;
cerr << " RESERVED_IDS := comma-separated list of IDs to reserve" << endl;
cerr << " LOG_LEVEL := log level {trace|debug|info|warn|err|critical|off}, default is 'trace'" << endl;
cerr << " LOG_LEVEL := log level {trace|debug|info|warn|err|critical|off}, default is 'info'" << endl;
cerr << " If CMD is 'attach' or 'insert' the FILE parameter is required." << endl;
cerr << "Usage: " << argv[0] << " -l" << endl;
cerr << " Print device list." << endl;