| ng_patch.4 (242997) | ng_patch.4 (267938) |
|---|---|
| 1.\" Copyright (c) 2010 Maxim Ignatenko <gelraen.ua@gmail.com> 2.\" Copyright (c) 2010 Vadim Goncharov <vadimnuclight@tpu.ru> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" | 1.\" Copyright (c) 2010 Maxim Ignatenko <gelraen.ua@gmail.com> 2.\" Copyright (c) 2010 Vadim Goncharov <vadimnuclight@tpu.ru> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" |
| 26.\" $FreeBSD: head/share/man/man4/ng_patch.4 242997 2012-11-13 20:41:36Z joel $ | 26.\" $FreeBSD: head/share/man/man4/ng_patch.4 267938 2014-06-26 21:46:14Z bapt $ |
| 27.\" 28.Dd March 5, 2012 29.Dt NG_PATCH 4 30.Os 31.Sh NAME 32.Nm ng_patch 33.Nd "trivial mbuf data modifying netgraph node type" 34.Sh SYNOPSIS --- 178 unchanged lines hidden (view full) --- 213.Xr ng_ipfw 4 , 214.Xr ngctl 8 215.Sh HISTORY 216The 217.Nm 218node type was implemented in 219.Fx 8.1 . 220.Sh AUTHORS | 27.\" 28.Dd March 5, 2012 29.Dt NG_PATCH 4 30.Os 31.Sh NAME 32.Nm ng_patch 33.Nd "trivial mbuf data modifying netgraph node type" 34.Sh SYNOPSIS --- 178 unchanged lines hidden (view full) --- 213.Xr ng_ipfw 4 , 214.Xr ngctl 8 215.Sh HISTORY 216The 217.Nm 218node type was implemented in 219.Fx 8.1 . 220.Sh AUTHORS |
| 221.An "Maxim Ignatenko" Aq gelraen.ua@gmail.com . | 221.An Maxim Ignatenko Aq Mt gelraen.ua@gmail.com 222.Pp 223.An -nosplit |
| 222This manual page was written by | 224This manual page was written by |
| 223.An "Vadim Goncharov" Aq vadimnuclight@tpu.ru . | 225.An Vadim Goncharov Aq Mt vadimnuclight@tpu.ru . |
| 224.Sh BUGS 225Node blindly tries to apply every patching operation to each packet 226(except those which offset if greater than length of the packet), 227so be sure that you supply only the right packets to it (e.g. changing 228bytes in the ARP packets meant to be in IP header could corrupt 229them and make your machine unreachable from the network). 230.Pp 231.Em !!! WARNING !!! 232.Pp 233Output path of the IP stack assumes correct fields and lengths in the 234packets - changing them by mistake to incorrect values can cause 235unpredictable results including kernel panics. | 226.Sh BUGS 227Node blindly tries to apply every patching operation to each packet 228(except those which offset if greater than length of the packet), 229so be sure that you supply only the right packets to it (e.g. changing 230bytes in the ARP packets meant to be in IP header could corrupt 231them and make your machine unreachable from the network). 232.Pp 233.Em !!! WARNING !!! 234.Pp 235Output path of the IP stack assumes correct fields and lengths in the 236packets - changing them by mistake to incorrect values can cause 237unpredictable results including kernel panics. |