3rd-party/linux-kernel-module-cheat
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MODULE_VERSION and srcversion

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Ciro Santilli
2017-11-13 15:48:25 +00:00
parent 98756d2454
commit 2e04c96fad
4 changed files with 36 additions and 2 deletions
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1
kernel_module/README.md
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@@ -9,6 +9,7 @@
1. [params](params.c)
1. [vermagic](vermagic.c)
1. [vermagic_fail](vermagic_fail.c)
1. [module_version](module_version.c)
1. Pseudo filesystems
1. [debugfs](debugfs.c)
1. [procfs](procfs.c)

28
kernel_module/module_version.c Normal file
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@@ -0,0 +1,28 @@
/*
https://stackoverflow.com/questions/4839024/how-to-find-the-version-of-a-compiled-kernel-module/42556565#42556565
insmod /module_version.ko
cat /sys/modules/module_version/version
# => 1.0
cat /sys/module/module_version/srcversion
# => AB0F06618BC3A36B687CDC5
modinfo /module_version.ko | grep -E '^(src|)version'
# => version: 1.0
# => srcversion: AB0F06618BC3A36B687CDC5
*/
#include <linux/module.h>
#include <linux/kernel.h>
static int myinit(void)
{
pr_info(__FILE__ "\n");
return 0;
}
static void myexit(void) {}
module_init(myinit)
module_exit(myexit)
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");

6
kernel_module/vermagic.c
View File

@@ -1,7 +1,9 @@
/*
insmod /vermagic.ko
# => 4.9.6 SMP mod_unload modversions
TODO how to get the vermagic from running kernel from userland? <https://lists.kernelnewbies.org/pipermail/kernelnewbies/2012-October/006306.html>
TODO how to get the vermagic from running kernel from userland?
<https://lists.kernelnewbies.org/pipermail/kernelnewbies/2012-October/006306.html>
*/
#include <linux/module.h>
@@ -10,7 +12,7 @@ TODO how to get the vermagic from running kernel from userland? <https://lists.k
static int myinit(void)
{
pr_info(VERMAGIC_STRING "\n");
pr_info(__FILE__ "\n");
return 0;
}