static int
HgfsPackOpenRequest(const char *path, // IN: Path to file
struct fuse_file_info *fi, // IN: File info structure
mode_t permsMode, // IN: Permissions, in this context
HgfsOpenValid mask, // IN: Open validation mask
HgfsOp opUsed, // IN: Op to use
HgfsReq *req) // IN/OUT: Packet to write into
{
char *name;
uint32 *nameLength;
size_t reqSize;
int result;
int openMode, openFlags;
ASSERT(path);
ASSERT(req);
openMode = HgfsGetOpenMode(fi->flags);
if (openMode < 0) {
LOG(4, ("Failed to get open mode.\n"));
return -EINVAL;
}
openFlags = HgfsGetOpenFlags(fi->flags);
if (openFlags < 0) {
LOG(4, ("Failed to get open flags.\n"));
return -EINVAL;
}
switch (opUsed) {
case HGFS_OP_OPEN_V3: {
HgfsRequestOpenV3 *requestV3 = HgfsGetRequestPayload(req);
reqSize = sizeof(*requestV3) + HgfsGetRequestHeaderSize();
/* We'll use these later. */
name = requestV3->fileName.name;
nameLength = &requestV3->fileName.length;
/* Linux clients need case-sensitive lookups. */
requestV3->fileName.flags = 0;
requestV3->fileName.caseType = HGFS_FILE_NAME_CASE_SENSITIVE;
requestV3->fileName.fid = HGFS_INVALID_HANDLE;
requestV3->mask = mask;
requestV3->mode = openMode;
requestV3->flags = openFlags;
/* Set permissions. */
if (requestV3->mask & HGFS_FILE_OPEN_PERMS) {
requestV3->specialPerms = (permsMode & (S_ISUID | S_ISGID | S_ISVTX)) >> 9;
requestV3->ownerPerms = (permsMode & S_IRWXU) >> 6;
requestV3->groupPerms = (permsMode & S_IRWXG) >> 3;
requestV3->otherPerms = (permsMode & S_IRWXO);
}
/* XXX: Request no lock for now. */
requestV3->desiredLock = HGFS_LOCK_NONE;
requestV3->reserved1 = 0;
requestV3->reserved2 = 0;
break;
}
case HGFS_OP_OPEN_V2: {
HgfsRequestOpenV2 *requestV2;
requestV2 = (HgfsRequestOpenV2 *)(HGFS_REQ_PAYLOAD(req));
/* We'll use these later. */
name = requestV2->fileName.name;
nameLength = &requestV2->fileName.length;
reqSize = sizeof *requestV2;
requestV2->mask = mask;
requestV2->mode = openMode;
requestV2->flags = openFlags;
/* Set permissions, requires discussion... default, will set max permission*/
if (requestV2->mask & HGFS_FILE_OPEN_PERMS) {
requestV2->specialPerms = (permsMode & (S_ISUID | S_ISGID | S_ISVTX)) >> 9;
requestV2->ownerPerms = (permsMode & S_IRWXU) >> 6;
requestV2->groupPerms = (permsMode & S_IRWXG) >> 3;
requestV2->otherPerms = (permsMode & S_IRWXO);
}
/* XXX: Request no lock for now. */
requestV2->desiredLock = HGFS_LOCK_NONE;
break;
}
static int
HgfsPackOpenRequest(struct inode *inode, // IN: Inode of the file to open
struct file *file, // IN: File pointer for this open
HgfsOp opUsed, // IN: Op to use
HgfsReq *req) // IN/OUT: Packet to write into
{
char *name;
uint32 *nameLength;
size_t requestSize;
int result;
ASSERT(inode);
ASSERT(file);
ASSERT(req);
switch (opUsed) {
case HGFS_OP_OPEN_V3: {
HgfsRequest *requestHeader;
HgfsRequestOpenV3 *requestV3;
requestHeader = (HgfsRequest *)HGFS_REQ_PAYLOAD(req);
requestHeader->op = opUsed;
requestHeader->id = req->id;
requestV3 = (HgfsRequestOpenV3 *)HGFS_REQ_PAYLOAD_V3(req);
requestSize = HGFS_REQ_PAYLOAD_SIZE_V3(requestV3);
/* We'll use these later. */
name = requestV3->fileName.name;
nameLength = &requestV3->fileName.length;
requestV3->mask = HGFS_FILE_OPEN_MASK;
/* Linux clients need case-sensitive lookups. */
requestV3->fileName.flags = 0;
requestV3->fileName.caseType = HGFS_FILE_NAME_CASE_SENSITIVE;
requestV3->fileName.fid = HGFS_INVALID_HANDLE;
/* Set mode. */
result = HgfsGetOpenMode(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open mode\n"));
return -EINVAL;
}
requestV3->mode = result;
/* Set flags. */
result = HgfsGetOpenFlags(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open flags\n"));
return -EINVAL;
}
requestV3->flags = result;
/* Set permissions. */
requestV3->specialPerms = (inode->i_mode & (S_ISUID | S_ISGID | S_ISVTX))
>> 9;
requestV3->ownerPerms = (inode->i_mode & S_IRWXU) >> 6;
requestV3->groupPerms = (inode->i_mode & S_IRWXG) >> 3;
requestV3->otherPerms = (inode->i_mode & S_IRWXO);
/* XXX: Request no lock for now. */
requestV3->desiredLock = HGFS_LOCK_NONE;
requestV3->reserved1 = 0;
requestV3->reserved2 = 0;
break;
}
case HGFS_OP_OPEN_V2: {
HgfsRequestOpenV2 *requestV2;
requestV2 = (HgfsRequestOpenV2 *)(HGFS_REQ_PAYLOAD(req));
requestV2->header.op = opUsed;
requestV2->header.id = req->id;
/* We'll use these later. */
name = requestV2->fileName.name;
nameLength = &requestV2->fileName.length;
requestSize = sizeof *requestV2;
requestV2->mask = HGFS_FILE_OPEN_MASK;
/* Set mode. */
result = HgfsGetOpenMode(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open mode\n"));
return -EINVAL;
}
requestV2->mode = result;
/* Set flags. */
result = HgfsGetOpenFlags(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open flags\n"));
return -EINVAL;
}
requestV2->flags = result;
/* Set permissions. */
requestV2->specialPerms = (inode->i_mode & (S_ISUID | S_ISGID | S_ISVTX))
>> 9;
requestV2->ownerPerms = (inode->i_mode & S_IRWXU) >> 6;
requestV2->groupPerms = (inode->i_mode & S_IRWXG) >> 3;
requestV2->otherPerms = (inode->i_mode & S_IRWXO);
/* XXX: Request no lock for now. */
requestV2->desiredLock = HGFS_LOCK_NONE;
break;
}
case HGFS_OP_OPEN: {
HgfsRequestOpen *request;
request = (HgfsRequestOpen *)(HGFS_REQ_PAYLOAD(req));
request->header.op = opUsed;
request->header.id = req->id;
/* We'll use these later. */
name = request->fileName.name;
nameLength = &request->fileName.length;
requestSize = sizeof *request;
/* Set mode. */
result = HgfsGetOpenMode(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open mode\n"));
return -EINVAL;
}
request->mode = result;
/* Set flags. */
result = HgfsGetOpenFlags(file->f_flags);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: failed to get "
"open flags\n"));
return -EINVAL;
}
request->flags = result;
/* Set permissions. */
request->permissions = (inode->i_mode & S_IRWXU) >> 6;
break;
}
default:
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: unexpected "
"OP type encountered\n"));
return -EPROTO;
}
/* Build full name to send to server. */
if (HgfsBuildPath(name,
req->bufferSize - (requestSize - 1),
file->f_dentry) < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: build path "
"failed\n"));
return -EINVAL;
}
LOG(6, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: opening \"%s\", "
"flags %o, create perms %o\n", name,
file->f_flags, file->f_mode));
/* Convert to CP name. */
result = CPName_ConvertTo(name,
req->bufferSize - (requestSize - 1),
name);
if (result < 0) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsPackOpenRequest: CP conversion "
"failed\n"));
return -EINVAL;
}
*nameLength = (uint32) result;
req->payloadSize = requestSize + result;
return 0;
}
