insmod

来源： https://stackoverflow.com/questions/63568787/insmod-error-invalid-module-format-on-debian-9-5

问题 Edit: I have written following module to filter websites.I am able to sniff DNS Packet(question field Domain Name ) requested by User and compare with block[]="www.facebook.com" . If matched, drop the packet.Now I inserted a read code (see after //Read File here in bellow code)to read website list written in a file (instead of Hard coding block[]=) and compare it with DNS question.right Now I am able to compile module successfully but not able to load it properly.Is it because of make Warning

问题 I want to call a user space program from a kernel module periodically.But the kernel program is freezing the system, while I try to load it. following is the program, #include <linux/module.h> /* Needed by all modules */ #include <linux/kernel.h> /* Needed for KERN_INFO */ #include <linux/init.h> /* Needed for the macros */ #include <linux/jiffies.h> #include <linux/time.h> #include <linux/proc_fs.h> #include <asm/uaccess.h> #include <linux/hrtimer.h> #include <linux/sched.h> #include <linux

问题 I am working in Ubuntu. I am trying to make two kernel modules which uses each other functions. My problem is that I got modules properly compiled, but the symbol is not resolved for one of them. To make things simple, let's call these modules as m1 and m2 . m2 is exporting function void func_m2(void) . The m1 is calling this function. Both modules properly compile. After it all compiles, I need to load first the m2 module (because it has exported func_m2 function) and afterwards m1 module.

问题 I have a exported functions foo() and foo1() from a.ko (a kernel module), foo1() takes input parameter, a function pointer. I invoke foo1() from b.ko, and pass foo() as the input parameter. I see a insmod failure for b.ko (unknown symbol foo ), even though a.ko has been insmoded before b.ko. Any explanations/solutions ? Thanks, Lucky 回答1: There are two ways to solve this, 1) Compile both the kernel modules in the same Makefile i.e. objs-m := a.o b.o. 2) Include **KBUILD_EXTRA_SYMBOLS =<

问题 I'm trying to get a kernel module to load at boot. If I run insmod /path/to/module.ko , it works fine. But this has to be repeated every time I reboot. If I run modprobe /path/to/module.ko , it can't find the module. I know modprobe uses a configuration file, but I can't get it to load the module even after adding /path/to/module.ko to /etc/modules. What is the proper configuration? 回答1: You can make a symbolic link of your module to the standard path, so depmod will see it and you'll be able

问题 I am writing parallel LED board driver, .ko is successfully generated. I am facing this issue [63722.594233] led: Unknown symbol parport_register_device (err 0) [63722.594264] led: Unknown symbol parport_register_driver (err 0) 回答1: parport_register_device is exported in drivers/parport/share.c. So you have to load parport driver first ( modprobe parport ) and then your driver. 来源： https://stackoverflow.com/questions/22954268/insmod-error-unknown-symbol-in-module

问题 I was testing the network hook code given in https://en.wikipedia.org/wiki/Hooking . My kernel version is 3.11. #include <linux/module.h> #include <linux/kernel.h> #include <linux/skbuff.h> #include <net/ip.h> #include <linux/ip.h> #include <linux/tcp.h> #include <linux/in.h> #include <linux/netfilter.h> #include <linux/netfilter_ipv4.h> /* Port we want to drop packets on */ static const uint16_t port = 25; /* This is the hook function itself */ static unsigned int hook_func(unsigned int

问题 I am trying to build a kernel module (stress-test tool for a hardware) for a Linux 3.10.45 on x64. So far it seemed to work fine, until adding a mutex. I added mutex using and the functions mutex_init, mutex_lock, mutex_unlock and mutex_destroy. Building the module yielded no errors or warnings, but when loading with 'insmod', there are error messages in dmesg: [76603.744551] tryBlk: Unknown symbol mutex_lock_nested (err 0) [76603.744574] tryBlk: Unknown symbol mutex_destroy (err 0) I found a

问题 I am just curious is there any way to determine if a particular module is loaded/installed. $lsmod lists all modules (device driver loaded). Is there any way to check or a command that returns true/false boolean output if a module name is polled. for eg. if keyboard.o exists return true else false. i need this tip to complete my driver auto refresh program. PS: tried modinfo. i am using busybox client in my test DUT so can you give some alternatives other than modinfo ? 回答1: not sure if