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IPQ_SET_VERDICT(3)         Linux Programmer's Manual        IPQ_SET_VERDICT(3)



NAME
       ipq_set_verdict -- issue verdict and optionally modified packet to kernel

SYNOPSIS
       #include <linux/netfilter.h>
       #include <libipq.h>

       int  ipq_set_verdict(const  struct  ipq_handle *h, ipq_id_t id, unsigned int verdict, size_t data_len, unsigned
       char *buf);

DESCRIPTION
       The ipq_set_verdict function issues a verdict on a packet previously  obtained  with  ipq_read,  specifing  the
       intended disposition of the packet, and optionally supplying a modified version of the payload data.

       The  h  parameter  is  a  context  handle  which must previously have been returned successfully from a call to
       ipq_create_handle.

       The id parameter is the packet identifier obtained via ipq_get_packet.

       The verdict parameter must be one of:

       NF_ACCEPT
              Accept the packet and continue traversal within the kernel.

       NF_DROP
              Drop the packet.

       NF_QUEUE
              Requeue the packet.

       NF_STOLEN and NF_REPEAT are kernel-internal constants and should not be used from userspace as their exact side
       effects have not been investigated.

       The data_len parameter is the length of the data pointed to by buf, the optional replacement payload data.

       If simply setting a verdict without modifying the payload data, use zero for data_len and NULL for buf.

       The application is responsible for recalculating any packet checksums when modifying packets.

RETURN VALUE
       On failure, -1 is returned.
       On success, a non-zero positive value is returned.

ERRORS
       On error, a descriptive error message will be available via the ipq_errstr function.

BUGS
       None known.

AUTHOR
       James Morris <jmorrisATintercode.au>

COPYRIGHT
       Copyright (c) 2000-2001 Netfilter Core Team.

       Distributed under the GNU General Public License.

SEE ALSO
       iptables(8), libipq(3).




Linux iptables 1.2              16 October 2001             IPQ_SET_VERDICT(3)