man ipq_set_verdict (Fonctions bibliothèques) - issue verdict and optionally modified packet to kernel
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.
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 <jmorris@intercode.com.au>
COPYRIGHT
Copyright (c) 2000-2001 Netfilter Core Team.
Distributed under the GNU General Public License.