netlink on ClearOS 7.3 issue

vikramb · 09-22-2017, 02:05 AM

I am trying following simple program on ClearOS 7.3, 64 bit

Code:

#include <sys/socket.h>
#include <linux/netlink.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>

int main()
{
    int flags =0;
    int bus = NETLINK_NETFILTER;

    int sock_fd = socket(AF_NETLINK, SOCK_RAW | flags, bus);
    if(sock_fd<0)
    {
        printf("\nsocket failed with error no = %d and error msg = %s\n",
                                errno, strerror(errno));

        return -1;
    }

    printf("\nOP completed successfully..!\n");
    return 0;
}

I am getting following error:

socket failed with error no = 93 and error msg = Protocol not supported

My OS details are:

ClearOS release 7.3.0 (Final)
Linux 3.10.0-514.26.2.v7.x86_64 #1 SMP Wed Jul 5 10:37:54 MDT 2017 x86_64 x86_64 x86_64 GNU/Linux

Please help.

TB0ne · 09-28-2017, 01:17 PM

Quote:

Originally Posted by vikramb

I am trying following simple program on ClearOS 7.3, 64 bit

Code:

#include <sys/socket.h>
#include <linux/netlink.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>

int main()
{
    int flags =0;
    int bus = NETLINK_NETFILTER;
    int sock_fd = socket(AF_NETLINK, SOCK_RAW | flags, bus);
    if(sock_fd<0)
    {
        printf("\nsocket failed with error no = %d and error msg = %s\n",
                                errno, strerror(errno));
        return -1;
    }
    printf("\nOP completed successfully..!\n");
    return 0;
}

I am getting following error: socket failed with error no = 93 and error msg = Protocol not supported My OS details are:
ClearOS release 7.3.0 (Final)
Linux 3.10.0-514.26.2.v7.x86_64 #1 SMP Wed Jul 5 10:37:54 MDT 2017 x86_64 x86_64 x86_64 GNU/Linux

Are you running this as root? Where did you get the program? How are you running it, with what arguments?

vikramb · 10-03-2017, 01:07 AM

Quote:

Originally Posted by TB0ne

Are you running this as root? Where did you get the program? How are you running it, with what arguments?

Yes. I have tried using root. same results.

Arguments are

int flags =0;
int bus = NETLINK_NETFILTER;

The program is small snippet taken from libmnl source, NOT as is, but a simplified version.