] I have written a kernel module and modified the stack
] code ( at the socket layer) to send control to my
] module. I am trying to access the inpcb structure
] associated with that particular socket.
] struct in_pcb* inp = sotoinpcb(so);
] if (inp)
] .... processing
]
]
] though the pbc structure is allocated i am getting a
] page fault everytime when i try to access it.
] any idea? my code is in the socket layer..i checked up
] the udp routines.. they do pretty much the same thing..
] any help?
It may be that the packets you are processing are not IP
packets, and therefore do not have an in_pcb in them.
Verify that they are IP packets first, e.g.:
if (so->so_proto->pr_domain->dom_family == PF_INET) {
struct in_pcb* inp = sotoinpcb(so);
if (inp) {
... processing ...
}
}
Pretty obvious in retrospect, eh?
-- Terry
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