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Programming
Function pointer to inline function ?
Post 302355658 by jim mcnamara on Wednesday 23rd of September 2009 10:11:18 AM
09-23-2009
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LEARN ABOUT LINUX
ipq_set_verdict
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 <jmorris@intercode.com.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)