Date: Mon, 1 Jun 2009 10:30:52 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r193218 - head/share/man/man4 Message-ID: <200906011030.n51AUqiN072810@svn.freebsd.org>
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Author: pjd Date: Mon Jun 1 10:30:52 2009 New Revision: 193218 URL: http://svn.freebsd.org/changeset/base/193218 Log: Document IP_BINDANY IP socket option. Reviewed by: brueffer Modified: head/share/man/man4/ip.4 Modified: head/share/man/man4/ip.4 ============================================================================== --- head/share/man/man4/ip.4 Mon Jun 1 10:30:00 2009 (r193217) +++ head/share/man/man4/ip.4 Mon Jun 1 10:30:52 2009 (r193218) @@ -32,7 +32,7 @@ .\" @(#)ip.4 8.2 (Berkeley) 11/30/93 .\" $FreeBSD$ .\" -.Dd March 9, 2009 +.Dd June 1, 2009 .Dt IP 4 .Os .Sh NAME @@ -243,6 +243,23 @@ socket level option, otherwise the .Dv IP_ONESBCAST option has no effect. .Pp If the +.Dv IP_BINDANY +option is enabled on a +.Dv SOCK_STREAM , +.Dv SOCK_DGRAM +or a +.Dv SOCK_RAW +socket, one can +.Xr bind 2 +to any address, even one not bound to any available network interface in the +system. +This functionality (in conjunction with special firewall rules) can be used for +implementing a transparent proxy. +The +.Dv PRIV_NETINET_BINDANY +privilege is needed to set this option. +.Pp +If the .Dv IP_RECVTTL option is enabled on a .Dv SOCK_DGRAM
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