HgfsNameStatus
HgfsServerPolicy_GetSharePath(char const *nameIn, // IN: Name to check
size_t nameInLen, // IN: Length of nameIn
HgfsOpenMode mode, // IN: Requested access mode
size_t *sharePathLen, // OUT: Length of share path
char const **sharePath) // OUT: Share path
{
HgfsSharedFolder *myShare;
ASSERT(nameIn);
ASSERT(sharePathLen);
ASSERT(sharePath);
myShare = HgfsServerPolicyGetShare(&myState, nameIn, nameInLen);
if (!myShare) {
LOG(4, ("HgfsServerPolicy_GetSharePath: No matching share name\n"));
return HGFS_NAME_STATUS_DOES_NOT_EXIST;
}
/*
* See if access is allowed in the requested mode.
*
* XXX Yeah, this is retarded. We should be using bits instead of
* an enum for HgfsOpenMode. Add it to the todo list. [bac]
*/
switch (HGFS_OPEN_MODE_ACCMODE(mode)) {
case HGFS_OPEN_MODE_READ_ONLY:
if (!myShare->readAccess) {
LOG(4, ("HgfsServerPolicy_GetSharePath: Read access denied\n"));
return HGFS_NAME_STATUS_ACCESS_DENIED;
}
break;
case HGFS_OPEN_MODE_WRITE_ONLY:
if (!myShare->writeAccess) {
LOG(4, ("HgfsServerPolicy_GetSharePath: Write access denied\n"));
return HGFS_NAME_STATUS_ACCESS_DENIED;
}
break;
case HGFS_OPEN_MODE_READ_WRITE:
if (!myShare->readAccess || !myShare->writeAccess) {
LOG(4, ("HgfsServerPolicy_GetSharePath: Read/write access denied\n"));
return HGFS_NAME_STATUS_ACCESS_DENIED;
}
break;
default:
LOG(0, ("HgfsServerPolicy_GetSharePath: Invalid mode\n"));
return HGFS_NAME_STATUS_FAILURE;
break;
}
*sharePathLen = myShare->pathLen;
*sharePath = myShare->path;
return HGFS_NAME_STATUS_COMPLETE;
}
Bool
HgfsServerPolicy_CheckMode(HgfsOpenMode mode, // IN: mode to check
Bool writePermissions, // IN: callers write permissions
Bool readPermissions) // IN: callers read permissions
{
/*
* See if access is allowed in the requested mode.
*
* XXX Yeah, this is retarded. We should be using bits instead of
* an enum for HgfsOpenMode. Add it to the todo list. [bac]
*/
switch (HGFS_OPEN_MODE_ACCMODE(mode)) {
case HGFS_OPEN_MODE_READ_ONLY:
if (!readPermissions) {
LOG(4, ("HgfsServerPolicyCheckMode: Read access denied\n"));
return FALSE;
}
break;
case HGFS_OPEN_MODE_WRITE_ONLY:
if (!writePermissions) {
LOG(4, ("HgfsServerPolicyCheckMode: Write access denied\n"));
return FALSE;
}
break;
case HGFS_OPEN_MODE_READ_WRITE:
if (!readPermissions || !writePermissions) {
LOG(4, ("HgfsServerPolicyCheckMode: Read/write access denied\n"));
return FALSE;
}
break;
default:
LOG(0, ("HgfsServerPolicyCheckMode: Invalid mode\n"));
ASSERT(FALSE);
return FALSE;
}
return TRUE;
}