| pflog.4 (148011) | pflog.4 (171172) |
|---|---|
| 1.\" $OpenBSD: pflog.4,v 1.7 2004/03/21 19:47:59 miod Exp $ | 1.\" $OpenBSD: pflog.4,v 1.9 2006/10/25 12:51:31 jmc Exp $ |
| 2.\" 3.\" Copyright (c) 2001 Tobias Weingartner 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" | 2.\" 3.\" Copyright (c) 2001 Tobias Weingartner 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" |
| 26.\" $FreeBSD: head/contrib/pf/man/pflog.4 148011 2005-07-14 20:29:08Z brueffer $ | 26.\" $FreeBSD: head/contrib/pf/man/pflog.4 171172 2007-07-03 12:30:03Z mlaier $ |
| 27.\" 28.Dd December 10, 2001 29.Dt PFLOG 4 30.Os 31.Sh NAME 32.Nm pflog 33.Nd packet filter logging interface 34.Sh SYNOPSIS --- 7 unchanged lines hidden (view full) --- 42Logged packets can easily be monitored in real 43time by invoking 44.Xr tcpdump 1 45on the 46.Nm 47interface, or stored to disk using 48.Xr pflogd 8 . 49.Pp | 27.\" 28.Dd December 10, 2001 29.Dt PFLOG 4 30.Os 31.Sh NAME 32.Nm pflog 33.Nd packet filter logging interface 34.Sh SYNOPSIS --- 7 unchanged lines hidden (view full) --- 42Logged packets can easily be monitored in real 43time by invoking 44.Xr tcpdump 1 45on the 46.Nm 47interface, or stored to disk using 48.Xr pflogd 8 . 49.Pp |
| 50The pflog0 interface is created automatically at boot if both 51.Xr pf 4 52and 53.Xr pflogd 8 54are enabled; 55further instances can be created using 56.Xr ifconfig 8 . 57.Pp |
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| 50Each packet retrieved on this interface has a header associated 51with it of length 52.Dv PFLOG_HDRLEN . 53This header documents the address family, interface name, rule 54number, reason, action, and direction of the packet that was logged. 55This structure, defined in 56.Aq Pa net/if_pflog.h 57looks like 58.Bd -literal -offset indent 59struct pfloghdr { 60 u_int8_t length; 61 sa_family_t af; 62 u_int8_t action; 63 u_int8_t reason; 64 char ifname[IFNAMSIZ]; 65 char ruleset[PF_RULESET_NAME_SIZE]; 66 u_int32_t rulenr; 67 u_int32_t subrulenr; | 58Each packet retrieved on this interface has a header associated 59with it of length 60.Dv PFLOG_HDRLEN . 61This header documents the address family, interface name, rule 62number, reason, action, and direction of the packet that was logged. 63This structure, defined in 64.Aq Pa net/if_pflog.h 65looks like 66.Bd -literal -offset indent 67struct pfloghdr { 68 u_int8_t length; 69 sa_family_t af; 70 u_int8_t action; 71 u_int8_t reason; 72 char ifname[IFNAMSIZ]; 73 char ruleset[PF_RULESET_NAME_SIZE]; 74 u_int32_t rulenr; 75 u_int32_t subrulenr; |
| 76 uid_t uid; 77 pid_t pid; 78 uid_t rule_uid; 79 pid_t rule_pid; |
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| 68 u_int8_t dir; 69 u_int8_t pad[3]; 70}; 71.Ed 72.Sh EXAMPLES | 80 u_int8_t dir; 81 u_int8_t pad[3]; 82}; 83.Ed 84.Sh EXAMPLES |
| 85Create a 86.Nm 87interface 88and monitor all packets logged on it: |
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| 73.Bd -literal -offset indent | 89.Bd -literal -offset indent |
| 74# ifconfig pflog0 up 75# tcpdump -n -e -ttt -i pflog0 | 90# ifconfig pflog1 up 91# tcpdump -n -e -ttt -i pflog1 |
| 76.Ed 77.Sh SEE ALSO 78.Xr tcpdump 1 79.Xr inet 4 , 80.Xr inet6 4 , 81.Xr netintro 4 , 82.Xr pf 4 , 83.Xr ifconfig 8 , 84.Xr pflogd 8 85.Sh HISTORY 86The 87.Nm 88device first appeared in 89.Ox 3.0 . 90.\" .Sh BUGS 91.\" Anything here? | 92.Ed 93.Sh SEE ALSO 94.Xr tcpdump 1 95.Xr inet 4 , 96.Xr inet6 4 , 97.Xr netintro 4 , 98.Xr pf 4 , 99.Xr ifconfig 8 , 100.Xr pflogd 8 101.Sh HISTORY 102The 103.Nm 104device first appeared in 105.Ox 3.0 . 106.\" .Sh BUGS 107.\" Anything here? |