fork_usermode_blob

Name:rk_usermode_blob - fork a blob of bytes as a usermode process*@data: a blob of bytes that can be do_execv-ed as a file*@len: length of the blob*@info: information about usermode process (shouldn't be NULL)* If info->cmdline is set it will be used as

Proto:int fork_usermode_blob(void *data, size_t len, struct umh_info *info)

Type:int

Parameter:

Type	Parameter	Name
void *	data
size_t	len
struct umh_info *	info

503

pos = 0

506

file = shmem_kernel_file_setup("", len, 0)

507

If IS_ERR(file) Then Return PTR_ERR(file)

510

written = kernel_write(file, data, len, & pos)

511

If written != len Then

512

513

If err >= 0 Then err = -ENOMEM

515

Go to out

518

519

sub_info = call_usermodehelper_setup_file(file, umh_pipe_setup, umh_clean_and_save_pid, info)

521

If Not sub_info Then Go to out

524

err = all_usermodehelper_exec - start a usermode application*@sub_info: information about the subprocessa*@wait: wait for the application to finish and return status.* when UMH_NO_WAIT don't wait at all, but you get no useful error back

525

If Not err Then

526

mutex_lock( & umh_list_lock)

527

list_add - add a new entry*@new: new entry to be added*@head: list head to add it after* Insert a new entry after the specified head.* This is good for implementing stacks.

528

mutex_unlock( & umh_list_lock)

530

out :

531

532

Return err

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