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Full Discussion: Running bin file from a module
Top Forums Programming Running bin file from a module Post 302505667 by Corona688 on Thursday 17th of March 2011 02:29:15 PM
Old 03-17-2011
Quote:
Originally Posted by Chrisdot
Hmm... so if I create simple doing nothing (or printing text to dmesg) kernel space dynamic library, save it wherever on HDD and try to use from device driver - would that work?
You're talking about kernel modules, I think. These can be loaded whenever. Make both these things, your little loader thing and the thing which uses it, both modules, and have the main thing depend on the little thing. Whenever the main module is loaded it will try to load your loader module first. It will look for it in a specific place on the hard drive (/lib/modules/kernel-version/kernel/...).

You can also manually tell the kernel to load a module file whenever with modprobe modulename if the module's installed under /lib/..., or insmod filename.ko to point it to a specific file.

I haven't used module dependencies myself so can't be more specific, sorry.
Quote:
Is there a way to create dynamic library in kernel space and call it from device driver?
Create a dynamic library? As in convert from source code into a module? Creating a module takes gcc and dozens of megs of kernel source, all of which happens in userspace. No.

Again though -- what you do really depends on what the contents of this mysterious "block" are and where it will be and how you must get at it. Do you have any information whatsoever on what it actually is? If not, you really don't have the information you need to write a driver.
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LEARN ABOUT DEBIAN

shorewall-modules

SHOREWALL-MODULES(5)						  [FIXME: manual]					      SHOREWALL-MODULES(5)

NAME

       modules - Shorewall file

SYNOPSIS

       /usr/share/shorewall/modules

       /usr/share/shorewall/helpers

DESCRIPTION

       These files specify which kernel modules Shorewall will load before trying to determine your iptables/kernel's capabilities.

       The modules file is used when LOAD_HELPERS_ONLY=No in shorewall.conf[1](8); the helpers file is used when LOAD_HELPERS_ONLY=Yes

       Each record in the files has the following format:

       loadmodule modulename [moduleoption...]

       The modulename names a kernel module (without suffix). Shorewall will search for modules based on your MODULESDIR and MODULE_SUFFIX
       settings in shorewall.conf[1](8). The moduleoptions are passed to modprobe (if installed) or to insmod.

       The /usr/share/shorewall/modules file contains a large number of modules. Users are encouraged to copy the file to /etc/shorewall/modules
       and modify the copy to load only the modules required or to use LOAD_HELPERS_ONLY=Yes..if n .sp
	   Note
	   If you build monolithic kernels and have not installed module-init-tools, then create an empty /etc/shorewall/modules file; that will
	   prevent Shorewall from trying to load modules at all.

EXAMPLE

       loadmodule ip_conntrack_ftp ports=21,221

FILES

       /usr/share/shorewall/modules

       /usr/share/shorewall/helpers

       /etc/shorewall/modules

       /etc/shorewall/helpers

SEE ALSO

       shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall_interfaces(5),
       shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
       shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5), shorewall-routestopped(5), shorewall-rules(5),
       shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5),
       shorewall-tunnels(5), shorewall-zones(5)

NOTES

	1. shorewall.conf
	   http://www.shorewall.net/manpages/shorewall.conf.html

[FIXME: source] 						    06/28/2012						      SHOREWALL-MODULES(5)
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