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CALL_USERMODEHELPER_(9) Module Support CALL_USERMODEHELPER_(9)

NAME

call_usermodehelper_setfns - set a cleanup/init function

SYNOPSIS

void call_usermodehelper_setfns(struct subprocess_info * info, int (*init) (struct subprocess_info *info, struct cred *new), void (*cleanup) (struct subprocess_info *info), void * data);

ARGUMENTS

info
a subprocess_info returned by call_usermodehelper_setup
init
an init function
cleanup
a cleanup function
data
arbitrary context sensitive data

DESCRIPTION

The init function is used to customize the helper process prior to exec. A non-zero return code causes the process to error out, exit, and return the failure to the calling process
The cleanup function is just before ethe subprocess_info is about to be freed. This can be used for freeing the argv and envp. The Function must be runnable in either a process context or the context in which call_usermodehelper_exec is called.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.