I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
196 lines
5.5 KiB
C++
196 lines
5.5 KiB
C++
/*
|
|
* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* disk/node.cpp
|
|
* Inode adapter for harddisks.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <errno.h>
|
|
#include <inttypes.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include <sortix/stat.h>
|
|
|
|
#include <sortix/kernel/harddisk.h>
|
|
#include <sortix/kernel/inode.h>
|
|
#include <sortix/kernel/kthread.h>
|
|
#include <sortix/kernel/log.h>
|
|
|
|
#include "node.h"
|
|
|
|
namespace Sortix {
|
|
|
|
PortNode::PortNode(Harddisk* harddisk, uid_t owner, gid_t group, mode_t mode,
|
|
dev_t dev, ino_t /*ino*/)
|
|
{
|
|
this->harddisk = harddisk;
|
|
inode_type = INODE_TYPE_FILE;
|
|
this->dev = dev;
|
|
this->ino = (ino_t) this;
|
|
this->stat_uid = owner;
|
|
this->stat_gid = group;
|
|
this->type = S_IFBLK;
|
|
this->stat_size = harddisk->GetSize();
|
|
this->stat_mode = (mode & S_SETABLE) | this->type;
|
|
this->stat_blksize = harddisk->GetBlockSize();
|
|
this->stat_blocks = harddisk->GetBlockCount();
|
|
}
|
|
|
|
PortNode::~PortNode()
|
|
{
|
|
// TODO: Ownership of `port'.
|
|
}
|
|
|
|
int PortNode::sync(ioctx_t* ctx)
|
|
{
|
|
return harddisk->sync(ctx);
|
|
}
|
|
|
|
int PortNode::truncate(ioctx_t* /*ctx*/, off_t length)
|
|
{
|
|
if ( length != harddisk->GetSize() )
|
|
return errno = EPERM, -1;
|
|
return 0;
|
|
}
|
|
|
|
off_t PortNode::lseek(ioctx_t* /*ctx*/, off_t offset, int whence)
|
|
{
|
|
if ( whence == SEEK_SET )
|
|
return offset;
|
|
if ( whence == SEEK_END )
|
|
{
|
|
off_t result;
|
|
if ( __builtin_add_overflow(harddisk->GetSize(), offset, &result) )
|
|
return errno = EOVERFLOW, -1;
|
|
return result;
|
|
}
|
|
return errno = EINVAL, -1;
|
|
}
|
|
|
|
ssize_t PortNode::pread(ioctx_t* ctx, uint8_t* buf, size_t count, off_t off)
|
|
{
|
|
return harddisk->pread(ctx, (unsigned char*) buf, count, off);
|
|
}
|
|
|
|
ssize_t PortNode::pwrite(ioctx_t* ctx, const uint8_t* buf, size_t count,
|
|
off_t off)
|
|
{
|
|
return harddisk->pwrite(ctx, (const unsigned char*) buf, count, off);
|
|
}
|
|
|
|
ssize_t PortNode::tcgetblob(ioctx_t* ctx, const char* name, void* buffer,
|
|
size_t count)
|
|
{
|
|
const void* result_pointer = NULL;
|
|
size_t result_size = 0;
|
|
char string[sizeof(uintmax_t) * 3];
|
|
static const char index[] = "harddisk-driver\0"
|
|
"harddisk-model\0"
|
|
"harddisk-serial\0"
|
|
"harddisk-revision\0"
|
|
"harddisk-size\0"
|
|
"harddisk-block-count\0"
|
|
"harddisk-block-size\0"
|
|
"harddisk-cylinders\0"
|
|
"harddisk-heads\0"
|
|
"harddisk-sectors\0"
|
|
"harddisk-ata-identify\0";
|
|
|
|
if ( !name )
|
|
{
|
|
result_pointer = index;
|
|
result_size = sizeof(index) - 1;
|
|
}
|
|
else if ( !strcmp(name, "harddisk-driver") )
|
|
{
|
|
result_pointer = harddisk->GetDriver();
|
|
result_size = strlen((const char*) result_pointer);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-model") )
|
|
{
|
|
result_pointer = harddisk->GetModel();
|
|
result_size = strlen((const char*) result_pointer);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-serial") )
|
|
{
|
|
result_pointer = harddisk->GetSerial();
|
|
result_size = strlen((const char*) result_pointer);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-revision") )
|
|
{
|
|
result_pointer = harddisk->GetRevision();
|
|
result_size = strlen((const char*) result_pointer);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-size") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIiOFF, harddisk->GetSize());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-block-count") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIiBLKCNT, harddisk->GetBlockCount());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-block-size") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIiBLKSIZE, harddisk->GetBlockSize());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-cylinders") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIu16, harddisk->GetCylinderCount());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-heads") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIu16, harddisk->GetHeadCount());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-sectors") )
|
|
{
|
|
snprintf(string, sizeof(string), "%" PRIu16, harddisk->GetSectorCount());
|
|
result_pointer = string;
|
|
result_size = strlen(string);
|
|
}
|
|
else if ( !strcmp(name, "harddisk-ata-identify") )
|
|
{
|
|
if ( !(result_pointer = harddisk->GetATAIdentify(&result_size)) )
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return errno = ENOENT, -1;
|
|
}
|
|
|
|
if ( SSIZE_MAX < result_size )
|
|
return errno = EOVERFLOW, -1;
|
|
if ( buffer && count < result_size )
|
|
return errno = ERANGE, -1;
|
|
if ( buffer && !ctx->copy_to_dest(buffer, result_pointer, result_size) )
|
|
return -1;
|
|
return (ssize_t) result_size;
|
|
}
|
|
|
|
} // namespace Sortix
|