udhcpd not starting

[Denys Vlasenko]

On Friday 16 October 2009 14:03, Ruben Lagar wrote:
> Thank you for helping with this issue.
> 
> I am attaching the init script:
> 
> mount -a
> modprobe g_ether
> sleep 1
> ifconfig usb0 10.0.1.83 netmask 255.255.255.0
> /usr/sbin/inetd -f&
> sleep 1
> /usr/sbin/udhcpd
> 
> the dmesg output after boot, and the configuration of busybox.
> 
> I am working with a device made by another people, so I have not compiled
> the kernel. I have requested them the kernel .config file, so as soon as I
> receive it, I will be able to email it.
> 
> I am really lost with this problem, I have no idea on what may be
> happening....

Comparing your dmesg with mine:

# grep 'Registered protocol family' dmesg.txt dmesg
dmesg.txt:<6>NET: Registered protocol family 16
dmesg.txt:<6>NET: Registered protocol family 2
dmesg.txt:<6>NET: Registered protocol family 1
dmesg.txt:<6>NET: Registered protocol family 17
dmesg:NET: Registered protocol family 16
dmesg:NET: Registered protocol family 2
dmesg:NET: Registered protocol family 1
dmesg:NET: Registered protocol family 10
dmesg:NET: Registered protocol family 17
dmesg:NET: Registered protocol family 15

mine only has PF_INET6 and PF_KEY added -

#define PF_LOCAL        1       /* Local to host (pipes and file-domain).  */
#define PF_INET         2       /* IP protocol family.  */
#define PF_INET6        10      /* IP version 6.  */
#define PF_KEY          15      /* PF_KEY key management API.  */
#define PF_NETLINK      16
#define PF_PACKET       17      /* Packet family.  */

which should not be causing this.


Here is the kernel source releavnt to SO_BINDTODEVICE:

        if (optname == SO_BINDTODEVICE)
                return sock_bindtodevice(sk, optval, optlen);
...
...
static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
{
        int ret = -ENOPROTOOPT;
#ifdef CONFIG_NETDEVICES
        struct net *net = sock_net(sk);
        char devname[IFNAMSIZ];
        int index;

        /* Sorry... */
        ret = -EPERM;
        if (!capable(CAP_NET_RAW))
                goto out;

        ret = -EINVAL;
        if (optlen < 0)
                goto out;

        /* Bind this socket to a particular device like "eth0",
         * as specified in the passed interface name. If the
         * name is "" or the option length is zero the socket
         * is not bound.
         */
        if (optlen > IFNAMSIZ - 1)
                optlen = IFNAMSIZ - 1;
        memset(devname, 0, sizeof(devname));

        ret = -EFAULT;
        if (copy_from_user(devname, optval, optlen))
                goto out;

        if (devname[0] == '\0') {
                index = 0;
        } else {
                struct net_device *dev = dev_get_by_name(net, devname);

                ret = -ENODEV;
                if (!dev)
                        goto out;

                index = dev->ifindex;
                dev_put(dev);
        }

        lock_sock(sk);
        sk->sk_bound_dev_if = index;
        sk_dst_reset(sk);
        release_sock(sk);

        ret = 0;

out:
#endif

        return ret;
}


Looks like your kernel has NETDEVICES off. This is the only way
this function can return -ENOPROTOOPT.

--
vda