Re: RAW Socket
ak@muc.de
Sun, 19 Apr 1998 19:07:48 +0200
On Sun, Apr 19, 1998 at 06:54:30PM +0200, Richard B. Johnson wrote:
> On Sun, 19 Apr 1998 ak@muc.de wrote:
>
> > On Sun, Apr 19, 1998 at 05:37:48PM +0200, Richard B. Johnson wrote:
> > > On Sun, 19 Apr 1998, Philip Blundell wrote:
> > >
> > > > >socket(AF_INET, SOCK_PACKET, 0) returns Protocol not supported.
> > > > >socket(AF_INET, AF_PACKET, 0) returns Invalid argument
> > > > >socket(AF_PACKET, SOCK_PACKET, 0) returns Invalid argument
> > > >
> > > > Compile AF_PACKET into your kernel and try again. BTW, you want to use
> > > > SOCK_DGRAM with AF_PACKET.
> > > >
> > >
> > > It is.
> > >
> > >
> > > CONFIG_M586=y
> > > CONFIG_MODULES=y
> > > CONFIG_NET=y
> > > CONFIG_PCI=y
> > > CONFIG_PCI_BIOS=y
> > > CONFIG_PCI_DIRECT=y
> > > CONFIG_SYSVIPC=y
> > > CONFIG_SYSCTL=y
> > > CONFIG_BINFMT_AOUT=y
> > > CONFIG_BINFMT_ELF=y
> > > CONFIG_BLK_DEV_FD=y
> > > CONFIG_PARIDE_PARPORT=y
> > > CONFIG_PACKET=y <====
> > > CONFIG_NETLINK=y
> > > CONFIG_UNIX=y
> > > CONFIG_INET=y
> > > CONFIG_IP_NOSR=y
> > > CONFIG_SKB_LARGE=y
> > >
> > >
> > > Also...
> > >
> > > socket(AF_PACKET, SOCK_DGRAM, 0) returns Invalid argument.
> >
> > Replace that with socket(AF_INET, SOCK_DGRAM, ntohs(ETH_P_ALL));
> >
> > (or ETH_P_IP if you only want to see IPv4 traffic).
> >
> >
> > -Andi
> >
> socket(AF_INET, SOCK_DGRAM, ntohs(ETH_P_ALL)) returns Protocol not
> supported
Ooops, sorry. Of course I meant to write
socket(AF_PACKET, SOCK_DGRAM, ntohs(ETH_P_ALL));
Sorry for the confusion. With SOCK_DGRAM it is probably better to use
ntohs(ETH_P_IP) though to only catch ip packets.
-A.
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