Esempio n. 1
0
/**
	@brief New process send a startup signal
 
	We copy the startup cmdline to the process
 */
static void process_startup(struct sysreq_process_startup * req)
{
	xstring __user cmdline = req->cmdline_buffer;
	
	if (req->func == SYSREQ_PROCESS_STARTUP_FUNC_START)
	{
		/* The user buffer can be written ? */
		if (ke_validate_user_buffer(cmdline, SYSREQ_PROCESS_STARTUP_MAX_SIZE, true) == false)
			return;
		memcpy(cmdline, (void*)(kt_arch_get_sp0(kt_current()) - KT_ARCH_THREAD_CP0_STACK_SIZE),
			   SYSREQ_PROCESS_STARTUP_MAX_SIZE);
		//printk("cmdline is %s.\n", cmdline);
	}
	else if (req->func == SYSREQ_PROCESS_STARTUP_FUNC_SET_PATH)
	{
		/* The user buffer can be written ? */
		if (ke_validate_user_buffer(cmdline, SYSREQ_PROCESS_STARTUP_MAX_SIZE, false) == false)
			return;
		//printk("current dir = %s.\n", cmdline);
		kt_current()->current_dir = fss_open(NULL, cmdline);
	}
	else if (req->func == SYSREQ_PROCESS_STARTUP_FUNC_END)
	{
		/* Killing main thread will trigger the process destroying */
		kt_delete_current();
	}
}
Esempio n. 2
0
static struct ko_section *map_file(struct ko_process *to, xstring name, page_prot_t prot, size_t __out *size)
{
	void *fp;
	size_t map_size;
	struct ko_section *map;

	//TODO: 此处应该使用to 的原始启动路径来做当前路径
	if (NULL == (fp = fss_open(kt_current()->current_dir, name)))
		goto err0;
	map_size = fss_get_size(fp);
	if (NULL == (map = create_file_map(to, fp, map_size, prot)))
		goto err1;
	if (size)
		*size = map_size;
	return map;
	
err1:
	fss_close(fp);
err0:
	return NULL;
}
Esempio n. 3
0
File: srv.c Progetto: hxhlb/GridOS
static struct ko_section *map_file(struct ko_process *to, xstring name, page_prot_t prot, unsigned long *map_size)
{
	struct ko_section *ks_file;
	unsigned long size;
	void *fp;
	
	fp = fss_open(kt_current()->current_dir, name);
	if (!fp) goto end;
	
	*map_size = size = fss_get_size(fp);
	ks_file = ks_create(to, KS_TYPE_FILE, NULL, size, prot);
	if (!ks_file)
		goto err1;
	ks_file->priv.file.file = fp;
	return ks_file;
	
err1:
	fss_close(fp);
end:
	return NULL;
}