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This commit was generated by cvs2svn to compensate for changes in r145837,

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which included commits to RCS files with non-trunk default branches.
This commit is contained in:
Max Laier 2005-05-03 16:47:37 +00:00
commit b1feb7cada
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=145838
12 changed files with 1839 additions and 181 deletions
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82
contrib/pf/authpf/authpf.8
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@ -1,4 +1,4 @@
.\" $OpenBSD: authpf.8,v 1.31 2003/12/10 04:10:37 beck Exp $ .\" $OpenBSD: authpf.8,v 1.38 2005/01/04 09:57:04 jmc Exp $
.\" .\"
.\" Copyright (c) 2002 Bob Beck (beck@openbsd.org>. All rights reserved. .\" Copyright (c) 2002 Bob Beck (beck@openbsd.org>. All rights reserved.
.\" .\"
@ -60,6 +60,10 @@ can add filter and translation rules using the syntax described in
requires that the requires that the
.Xr pf 4 .Xr pf 4
system be enabled before use. system be enabled before use.
.Nm
can also maintain the list of IP address of connected users
in the "authpf_users"
.Pa table .
.Pp .Pp
.Nm .Nm
is meant to be used with users who can connect via is meant to be used with users who can connect via
@ -93,11 +97,16 @@ in order to cause evaluation of any
.Nm .Nm
rules: rules:
.Bd -literal -offset indent .Bd -literal -offset indent
nat-anchor authpf nat-anchor "authpf/*"
rdr-anchor authpf rdr-anchor "authpf/*"
binat-anchor authpf binat-anchor "authpf/*"
anchor authpf anchor "authpf/*"
.Ed .Ed
.Pp
The "/*" at the end of the anchor name is required for
.Xr pf 4
to process the rulesets attached to the anchor by
.Nm authpf .
.Sh FILTER AND TRANSLATION RULES .Sh FILTER AND TRANSLATION RULES
Filter and translation rules for Filter and translation rules for
.Nm .Nm
@ -113,10 +122,14 @@ Additionally, the macro
.Em user_id .Em user_id
is assigned the user name. is assigned the user name.
.Pp .Pp
Filter and nat rules will first be searched for in Filter and translation rules are stored in a file called
.Pa authpf.rules .
This file will first be searched for in
.Pa /etc/authpf/users/$USER/ .Pa /etc/authpf/users/$USER/
and then in and then in
.Pa /etc/authpf/ . .Pa /etc/authpf/ .
Only one of these files will be used if both are present.
.Pp
Per-user rules from the Per-user rules from the
.Pa /etc/authpf/users/$USER/ .Pa /etc/authpf/users/$USER/
directory are intended to be used when non-default rules directory are intended to be used when non-default rules
@ -124,21 +137,11 @@ are needed on an individual user basis.
It is important to ensure that a user can not write or change It is important to ensure that a user can not write or change
these configuration files. these configuration files.
.Pp .Pp
Filter and translation rules are loaded from the file
.Pa /etc/authpf/users/$USER/authpf.rules .
If this file does not exist the file
.Pa /etc/authpf/authpf.rules
is used.
The The
.Pa authpf.rules .Pa authpf.rules
file must exist in one of the above locations for file must exist in one of the above locations for
.Nm .Nm
to run. to run.
.Pp
Translation rules are also loaded from this file.
The use of translation rules in an
.Pa authpf.rules
file is optional.
.Sh CONFIGURATION .Sh CONFIGURATION
Options are controlled by the Options are controlled by the
.Pa /etc/authpf/authpf.conf .Pa /etc/authpf/authpf.conf
@ -154,6 +157,10 @@ Currently, the allowed values are as follows:
Use the specified Use the specified
.Pa anchor .Pa anchor
name instead of "authpf". name instead of "authpf".
.It table=name
Use the specified
.Pa table
name instead of "authpf_users".
.El .El
.Sh USER MESSAGES .Sh USER MESSAGES
On successful invocation, On successful invocation,
@ -218,9 +225,15 @@ it becomes unresponsive, or if arp or address spoofing is used to
hijack the session. hijack the session.
Note that TCP keepalives are not sufficient for Note that TCP keepalives are not sufficient for
this, since they are not secure. this, since they are not secure.
Also note that
.Ar AllowTcpForwarding
should be disabled for
.Nm
users to prevent them from circumventing restrictions imposed by the
packet filter ruleset.
.Pp .Pp
.Nm .Nm
will remove statetable entries that were created during a user's will remove state table entries that were created during a user's
session. session.
This ensures that there will be no unauthenticated traffic This ensures that there will be no unauthenticated traffic
allowed to pass after the controlling allowed to pass after the controlling
@ -391,15 +404,15 @@ Example
# ssh and use us as a dns server. # ssh and use us as a dns server.
internal_if="fxp1" internal_if="fxp1"
gateway_addr="10.0.1.1" gateway_addr="10.0.1.1"
nat-anchor authpf nat-anchor "authpf/*"
rdr-anchor authpf rdr-anchor "authpf/*"
binat-anchor authpf binat-anchor "authpf/*"
block in on $internal_if from any to any block in on $internal_if from any to any
pass in quick on $internal_if proto tcp from any to $gateway_addr \e pass in quick on $internal_if proto tcp from any to $gateway_addr \e
port = ssh port = ssh
pass in quick on $internal_if proto udp from any to $gateway_addr \e pass in quick on $internal_if proto udp from any to $gateway_addr \e
port = domain port = domain
anchor authpf anchor "authpf/*"
.Ed .Ed
.Pp .Pp
.Sy For a switched, wired net .Sy For a switched, wired net
@ -465,6 +478,33 @@ Oct 31 19:42:30.296553 rule 0.bbeck(20267).1/0(match): pass out on fxp1: \e
129.128.11.10.60539 > 198.137.240.92.22: S 2131494121:2131494121(0) win \e 129.128.11.10.60539 > 198.137.240.92.22: S 2131494121:2131494121(0) win \e
16384 <mss 1460,nop,nop,sackOK> (DF) 16384 <mss 1460,nop,nop,sackOK> (DF)
.Ed .Ed
.Pp
.Sy Using the authpf_users table
\- Simple
.Nm
settings can be implemented without an anchor by just using the "authpf_users"
.Pa table .
For example, the following
.Xr pf.conf 5
lines will give SMTP and IMAP access to logged in users:
.Bd -literal
table <authpf_users> persist
pass in on $ext_if proto tcp from <authpf_users> \e
to port { smtp imap } keep state
.Ed
.Pp
It is also possible to use the "authpf_users"
.Pa table
in combination with anchors.
For example,
.Xr pf 4
processing can be sped up by looking up the anchor
only for packets coming from logged in users:
.Bd -literal
table <authpf_users> persist
anchor "authpf/*" from <authpf_users>
rdr-anchor "authpf/*" from <authpf_users>
.Ed
.Sh FILES .Sh FILES
.Bl -tag -width "/etc/authpf/authpf.conf" -compact .Bl -tag -width "/etc/authpf/authpf.conf" -compact
.It Pa /etc/authpf/authpf.conf .It Pa /etc/authpf/authpf.conf

3
contrib/pf/authpf/pathnames.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: pathnames.h,v 1.6 2003/06/03 20:38:59 beck Exp $ */ /* $OpenBSD: pathnames.h,v 1.7 2004/04/25 18:40:42 beck Exp $ */
/* /*
* Copyright (C) 2002 Chris Kuethe (ckuethe@ualberta.ca) * Copyright (C) 2002 Chris Kuethe (ckuethe@ualberta.ca)
@ -35,3 +35,4 @@
#define PATH_DEVFILE "/dev/pf" #define PATH_DEVFILE "/dev/pf"
#define PATH_PIDFILE "/var/authpf" #define PATH_PIDFILE "/var/authpf"
#define PATH_AUTHPF_SHELL "/usr/sbin/authpf" #define PATH_AUTHPF_SHELL "/usr/sbin/authpf"
#define PATH_PFCTL "/sbin/pfctl"

8
contrib/pf/ftp-proxy/getline.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: getline.c,v 1.15 2003/06/28 01:04:57 deraadt Exp $ */ /* $OpenBSD: getline.c,v 1.16 2004/09/16 04:50:51 deraadt Exp $ */
/* /*
* Copyright (c) 1985, 1988 Regents of the University of California. * Copyright (c) 1985, 1988 Regents of the University of California.
@ -96,7 +96,7 @@ refill_buffer(struct csiob *iobp)
/* don't do tiny reads, grow first if we need to */ /* don't do tiny reads, grow first if we need to */
rqlen = iobp->io_buffer_size - iobp->io_buffer_len; rqlen = iobp->io_buffer_size - iobp->io_buffer_len;
if (rqlen <= 128) { if (rqlen <= 128) {
char *tmp; unsigned char *tmp;
iobp->io_buffer_size += 128; iobp->io_buffer_size += 128;
tmp = realloc(iobp->io_buffer, iobp->io_buffer_size); tmp = realloc(iobp->io_buffer, iobp->io_buffer_size);
@ -152,7 +152,7 @@ telnet_getline(struct csiob *iobp, struct csiob *telnet_passthrough)
{ {
unsigned char ch; unsigned char ch;
int ix; int ix;
char tbuf[100]; unsigned char tbuf[100];
iobp->line_buffer[0] = '\0'; iobp->line_buffer[0] = '\0';
@ -236,7 +236,7 @@ telnet_getline(struct csiob *iobp, struct csiob *telnet_passthrough)
* nasty. * nasty.
*/ */
if (ix - iobp->next_byte > iobp->line_buffer_size - 5) { if (ix - iobp->next_byte > iobp->line_buffer_size - 5) {
char *tmp; unsigned char *tmp;
iobp->line_buffer_size = 256 + ix - iobp->next_byte; iobp->line_buffer_size = 256 + ix - iobp->next_byte;
tmp = realloc(iobp->line_buffer, tmp = realloc(iobp->line_buffer,

17
contrib/pf/ftp-proxy/util.c
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@ -1,4 +1,4 @@
/* $OpenBSD: util.c,v 1.18 2004/01/22 16:10:30 beck Exp $ */ /* $OpenBSD: util.c,v 1.19 2004/07/06 19:49:11 dhartmei Exp $ */
/* /*
* Copyright (c) 1996-2001 * Copyright (c) 1996-2001
@ -56,6 +56,8 @@
#include "util.h" #include "util.h"
extern int ReverseMode;
int Debug_Level; int Debug_Level;
int Use_Rdns; int Use_Rdns;
in_addr_t Bind_Addr = INADDR_NONE; in_addr_t Bind_Addr = INADDR_NONE;
@ -75,14 +77,14 @@ debuglog(int debug_level, const char *fmt, ...)
int int
get_proxy_env(int connected_fd, struct sockaddr_in *real_server_sa_ptr, get_proxy_env(int connected_fd, struct sockaddr_in *real_server_sa_ptr,
struct sockaddr_in *client_sa_ptr) struct sockaddr_in *client_sa_ptr, struct sockaddr_in *proxy_sa_ptr)
{ {
struct pfioc_natlook natlook; struct pfioc_natlook natlook;
socklen_t slen; socklen_t slen;
int fd; int fd;
slen = sizeof(*real_server_sa_ptr); slen = sizeof(*proxy_sa_ptr);
if (getsockname(connected_fd, (struct sockaddr *)real_server_sa_ptr, if (getsockname(connected_fd, (struct sockaddr *)proxy_sa_ptr,
&slen) != 0) { &slen) != 0) {
syslog(LOG_ERR, "getsockname() failed (%m)"); syslog(LOG_ERR, "getsockname() failed (%m)");
return(-1); return(-1);
@ -94,6 +96,9 @@ get_proxy_env(int connected_fd, struct sockaddr_in *real_server_sa_ptr,
return(-1); return(-1);
} }
if (ReverseMode)
return(0);
/* /*
* Build up the pf natlook structure. * Build up the pf natlook structure.
* Just for IPv4 right now * Just for IPv4 right now
@ -101,10 +106,10 @@ get_proxy_env(int connected_fd, struct sockaddr_in *real_server_sa_ptr,
memset((void *)&natlook, 0, sizeof(natlook)); memset((void *)&natlook, 0, sizeof(natlook));
natlook.af = AF_INET; natlook.af = AF_INET;
natlook.saddr.addr32[0] = client_sa_ptr->sin_addr.s_addr; natlook.saddr.addr32[0] = client_sa_ptr->sin_addr.s_addr;
natlook.daddr.addr32[0] = real_server_sa_ptr->sin_addr.s_addr; natlook.daddr.addr32[0] = proxy_sa_ptr->sin_addr.s_addr;
natlook.proto = IPPROTO_TCP; natlook.proto = IPPROTO_TCP;
natlook.sport = client_sa_ptr->sin_port; natlook.sport = client_sa_ptr->sin_port;
natlook.dport = real_server_sa_ptr->sin_port; natlook.dport = proxy_sa_ptr->sin_port;
natlook.direction = PF_OUT; natlook.direction = PF_OUT;
/* /*

6
contrib/pf/ftp-proxy/util.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: util.h,v 1.3 2002/05/23 10:22:14 deraadt Exp $ */ /* $OpenBSD: util.h,v 1.5 2005/02/24 15:49:08 dhartmei Exp $ */
/* /*
* Copyright (c) 1996-2001 * Copyright (c) 1996-2001
@ -46,7 +46,7 @@ struct csiob {
int line_buffer_size, io_buffer_size, io_buffer_len, next_byte; int line_buffer_size, io_buffer_size, io_buffer_len, next_byte;
unsigned char *io_buffer, *line_buffer; unsigned char *io_buffer, *line_buffer;
struct sockaddr_in sa, real_sa; struct sockaddr_in sa, real_sa;
char *who; const char *who;
char alive, got_eof, data_available; char alive, got_eof, data_available;
int send_oob_flags; int send_oob_flags;
}; };
@ -55,7 +55,7 @@ extern int telnet_getline(struct csiob *iobp,
struct csiob *telnet_passthrough); struct csiob *telnet_passthrough);
extern int get_proxy_env(int fd, struct sockaddr_in *server_sa_ptr, extern int get_proxy_env(int fd, struct sockaddr_in *server_sa_ptr,
struct sockaddr_in *client_sa_ptr); struct sockaddr_in *client_sa_ptr, struct sockaddr_in *proxy_sa_ptr);
extern int get_backchannel_socket(int type, int min_port, int max_port, extern int get_backchannel_socket(int type, int min_port, int max_port,
int start_port, int direction, struct sockaddr_in *sap); int start_port, int direction, struct sockaddr_in *sap);

4
contrib/pf/man/pf.os.5
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: pf.os.5,v 1.5 2003/10/25 07:55:27 jmc Exp $ .\" $OpenBSD: pf.os.5,v 1.6 2004/03/31 11:13:03 dhartmei Exp $
.\" .\"
.\" Copyright (c) 2003 Mike Frantzen <frantzen@w4g.org> .\" Copyright (c) 2003 Mike Frantzen <frantzen@w4g.org>
.\" .\"
@ -160,7 +160,7 @@ exact same TCP options in the same order.
.Pp .Pp
The The
.Ar class .Ar class
field is the class, genre or vender of the operating system. field is the class, genre or vendor of the operating system.
.Pp .Pp
The The
.Ar version .Ar version

265
contrib/pf/pfctl/pfctl.8
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: pfctl.8,v 1.110 2004/03/20 09:31:42 david Exp $ .\" $OpenBSD: pfctl.8,v 1.118 2005/01/05 23:41:45 jmc Exp $
.\" .\"
.\" Copyright (c) 2001 Kjell Wooding. All rights reserved. .\" Copyright (c) 2001 Kjell Wooding. All rights reserved.
.\" .\"
@ -33,17 +33,23 @@
.Sh SYNOPSIS .Sh SYNOPSIS
.Nm pfctl .Nm pfctl
.Bk -words .Bk -words
.Op Fl AdeghNnOqRrvz .Op Fl AdeghmNnOoqRrvz
.Op Fl a Ar anchor Ns Op Ar :ruleset .Op Fl a Ar anchor
.Op Fl D Ar macro=value .Xo
.Oo Fl D
.Ar macro Ns = Ns Ar value Oc
.Xc
.Op Fl F Ar modifier .Op Fl F Ar modifier
.Op Fl f Ar file .Op Fl f Ar file
.Op Fl i Ar interface .Op Fl i Ar interface
.Op Fl k Ar host .Op Fl k Ar host
.Op Fl p Ar device .Op Fl p Ar device
.Op Fl s Ar modifier .Op Fl s Ar modifier
.Op Fl T Ar command Op Ar address ... .Oo Xo
.Op Fl t Ar table .Fl t Ar table
.Fl T Ar command
.Op Ar address ... Oc
.Xc
.Op Fl x Ar level .Op Fl x Ar level
.Ek .Ek
.Sh DESCRIPTION .Sh DESCRIPTION
@ -72,9 +78,14 @@ supported.
Translation rules are described in Translation rules are described in
.Xr pf.conf 5 . .Xr pf.conf 5 .
.Pp .Pp
When the variable pf is set to YES in When the variable
.Xr rc.conf 8 , .Va pf
the rule file specified with the variable pf_rules is set to
.Dv YES
in
.Xr rc.conf.local 8 ,
the rule file specified with the variable
.Va pf_rules
is loaded automatically by the is loaded automatically by the
.Xr rc 8 .Xr rc 8
scripts and the packet filter is enabled. scripts and the packet filter is enabled.
@ -85,7 +96,7 @@ Forwarding can be enabled by setting the
variables variables
.Em net.inet.ip.forwarding .Em net.inet.ip.forwarding
and/or and/or
.Em net.inet6.ip6.forwarding , .Em net.inet6.ip6.forwarding
to 1. to 1.
Set them permanently in Set them permanently in
.Xr sysctl.conf 5 . .Xr sysctl.conf 5 .
@ -98,48 +109,59 @@ The options are as follows:
.It Fl A .It Fl A
Load only the queue rules present in the rule file. Load only the queue rules present in the rule file.
Other rules and options are ignored. Other rules and options are ignored.
.It Fl a Ar anchor Ns Op Ar :ruleset .It Fl a Ar anchor
Apply flags Apply flags
.Fl f , .Fl f ,
.Fl F .Fl F ,
and and
.Fl s .Fl s
only to the rules in the specified only to the rules in the specified
.Ar anchor .Ar anchor .
and optional named ruleset
.Ar ruleset .
In addition to the main ruleset, In addition to the main ruleset,
.Nm .Nm
can load and manipulate additional rulesets by name. can load and manipulate additional rulesets by name,
Named rulesets are attached at called anchors.
.Ar anchor The main ruleset is the default anchor.
points, which are also referenced by name. .Pp
Anchors are referenced by name and may be nested,
with the various components of the anchor path separated by
.Sq /
characters, similar to how file system hierarchies are laid out.
The last component of the anchor path is where ruleset operations are
performed.
.Pp
Evaluation of Evaluation of
.Ar anchor .Ar anchor
rules from the main ruleset is described in rules from the main ruleset is described in
.Xr pf.conf 5 . .Xr pf.conf 5 .
For example, to show all filter rules inside anchor .Pp
.Li foo : For example, the following will show all filter rules (see the
.Fl s
flag below) inside the anchor
.Li authpf/smith(1234) ,
which would have been created for user smith by
.Xr authpf 8 ,
PID 1234:
.Bd -literal -offset indent .Bd -literal -offset indent
# pfctl -a foo -s rules # pfctl -a "authpf/smith(1234)" -s rules
.Ed .Ed
.Pp .Pp
Private tables can also be put inside subrulesets, either by having table Private tables can also be put inside anchors, either by having table
statements in the statements in the
.Xr pf.conf 5 .Xr pf.conf 5
file that is loaded in the anchor, or by using regular table commands as in: file that is loaded in the anchor, or by using regular table commands, as in:
.Bd -literal -offset indent .Bd -literal -offset indent
# pfctl -a foo:bar -t mytable -T add 1.2.3.4 5.6.7.8 # pfctl -a foo/bar -t mytable -T add 1.2.3.4 5.6.7.8
.Ed .Ed
.Pp .Pp
When a rule referring to a table is loaded in an anchor, the rule will use the When a rule referring to a table is loaded in an anchor, the rule will use the
private table if one is defined, and then fallback to the table defined in the private table if one is defined, and then fall back to the table defined in the
main ruleset, if there is one. main ruleset, if there is one.
This is similar to C rules for variables. This is similar to C rules for variable scope.
It is possible to create distinct tables with the same name in the global It is possible to create distinct tables with the same name in the global
ruleset and in an anchor, but this is often bad design and a warning will be ruleset and in an anchor, but this is often bad design and a warning will be
issued in that case. issued in that case.
.It Fl D Ar macro=value .It Fl D Ar macro Ns = Ns Ar value
Define Define
.Ar macro .Ar macro
to be set to to be set to
@ -158,23 +180,23 @@ Flush the filter parameters specified by
(may be abbreviated): (may be abbreviated):
.Pp .Pp
.Bl -tag -width xxxxxxxxxxxx -compact .Bl -tag -width xxxxxxxxxxxx -compact
.It Fl F Ar nat .It Fl F Cm nat
Flush the NAT rules. Flush the NAT rules.
.It Fl F Ar queue .It Fl F Cm queue
Flush the queue rules. Flush the queue rules.
.It Fl F Ar rules .It Fl F Cm rules
Flush the filter rules. Flush the filter rules.
.It Fl F Ar state .It Fl F Cm state
Flush the state table (NAT and filter). Flush the state table (NAT and filter).
.It Fl F Ar Sources .It Fl F Cm Sources
Flush the source tracking table. Flush the source tracking table.
.It Fl F Ar info .It Fl F Cm info
Flush the filter information (statistics that are not bound to rules). Flush the filter information (statistics that are not bound to rules).
.It Fl F Ar Tables .It Fl F Cm Tables
Flush the tables. Flush the tables.
.It Fl F Ar osfp .It Fl F Cm osfp
Flush the passive operating system fingerprints. Flush the passive operating system fingerprints.
.It Fl F Ar all .It Fl F Cm all
Flush all of the above. Flush all of the above.
.El .El
.It Fl f Ar file .It Fl f Ar file
@ -216,6 +238,13 @@ to
.Bd -literal -offset indent .Bd -literal -offset indent
# pfctl -k host1 -k host2 # pfctl -k host1 -k host2
.Ed .Ed
.It Fl m
Merge in explicitly given options without resetting those
which are omitted.
Allows single options to be modified without disturbing the others:
.Bd -literal -offset indent
# echo "set loginterface fxp0" | pfctl -mf -
.Ed
.It Fl N .It Fl N
Load only the NAT rules present in the rule file. Load only the NAT rules present in the rule file.
Other rules and options are ignored. Other rules and options are ignored.
@ -224,6 +253,39 @@ Do not actually load rules, just parse them.
.It Fl O .It Fl O
Load only the options present in the rule file. Load only the options present in the rule file.
Other rules and options are ignored. Other rules and options are ignored.
.It Fl o
Enable the ruleset optimizer.
The ruleset optimizer attempts to improve rulesets by removing rule
duplication and making better use of rule ordering.
Specifically, it does four things:
.Pp
.Bl -enum -compact
.It
remove duplicate rules
.It
remove rules that are a subset of another rule
.It
combine multiple rules into a table when advantageous
.It
re-order the rules to improve evaluation performance
.El
.Pp
A second
.Fl o
may be specified to use the currently loaded ruleset as a feedback profile
to tailor the optimization of the
.Ar quick
rules to the actual network behavior.
.Pp
It is important to note that the ruleset optimizer will modify the ruleset
to improve performance.
A side effect of the ruleset modification is that per-rule accounting
statistics will have different meanings than before.
If per-rule accounting is important for billing purposes or whatnot, either
the ruleset optimizer should not be used or a
.Ar label
field should be added to all of the accounting rules to act as optimization
barriers.
.It Fl p Ar device .It Fl p Ar device
Use the device file Use the device file
.Ar device .Ar device
@ -242,9 +304,9 @@ Show the filter parameters specified by
(may be abbreviated): (may be abbreviated):
.Pp .Pp
.Bl -tag -width xxxxxxxxxxxxx -compact .Bl -tag -width xxxxxxxxxxxxx -compact
.It Fl s Ar nat .It Fl s Cm nat
Show the currently loaded NAT rules. Show the currently loaded NAT rules.
.It Fl s Ar queue .It Fl s Cm queue
Show the currently loaded queue rules. Show the currently loaded queue rules.
When used together with When used together with
.Fl v , .Fl v ,
@ -254,51 +316,58 @@ When used together with
.Nm .Nm
will loop and show updated queue statistics every five seconds, including will loop and show updated queue statistics every five seconds, including
measured bandwidth and packets per second. measured bandwidth and packets per second.
.It Fl s Ar rules .It Fl s Cm rules
Show the currently loaded filter rules. Show the currently loaded filter rules.
When used together with When used together with
.Fl v , .Fl v ,
the per-rule statistics (number of evaluations, the per-rule statistics (number of evaluations,
packets and bytes) are also shown. packets and bytes) are also shown.
Note that the 'skip step' optimization done automatically by the kernel Note that the
.Dq skip step
optimization done automatically by the kernel
will skip evaluation of rules where possible. will skip evaluation of rules where possible.
Packets passed statefully are counted in the rule that created the state Packets passed statefully are counted in the rule that created the state
(even though the rule isn't evaluated more than once for the entire (even though the rule isn't evaluated more than once for the entire
connection). connection).
.It Fl s Ar Anchors .It Fl s Cm Anchors
Show the currently loaded anchors. Show the currently loaded anchors directly attached to the main ruleset.
If If
.Fl a Ar anchor .Fl a Ar anchor
is specified as well, the named rulesets currently loaded in the specified is specified as well, the anchors loaded directly below the given
anchor are shown instead. .Ar anchor
.It Fl s Ar state are shown instead.
If
.Fl v
is specified, all anchors attached under the target anchor will be
displayed recursively.
.It Fl s Cm state
Show the contents of the state table. Show the contents of the state table.
.It Fl s Ar Sources .It Fl s Cm Sources
Show the contents of the source tracking table. Show the contents of the source tracking table.
.It Fl s Ar info .It Fl s Cm info
Show filter information (statistics and counters). Show filter information (statistics and counters).
When used together with When used together with
.Fl v , .Fl v ,
source tracking statistics are also shown. source tracking statistics are also shown.
.It Fl s Ar labels .It Fl s Cm labels
Show per-rule statistics (label, evaluations, packets, bytes) of Show per-rule statistics (label, evaluations, packets, bytes) of
filter rules with labels, useful for accounting. filter rules with labels, useful for accounting.
.It Fl s Ar timeouts .It Fl s Cm timeouts
Show the current global timeouts. Show the current global timeouts.
.It Fl s Ar memory .It Fl s Cm memory
Show the current pool memory hard limits. Show the current pool memory hard limits.
.It Fl s Ar Tables .It Fl s Cm Tables
Show the list of tables. Show the list of tables.
.It Fl s Ar osfp .It Fl s Cm osfp
Show the list of operating system fingerprints. Show the list of operating system fingerprints.
.It Fl s Ar Interfaces .It Fl s Cm Interfaces
Show the list of interfaces and interface drivers available to PF. Show the list of interfaces and interface drivers available to PF.
When used together with a double When used together with a double
.Fl v , .Fl v ,
interface statistics are also shown. interface statistics are also shown.
.Fl i .Fl i
can be used to select an interface or a group of interfaces. can be used to select an interface or a group of interfaces.
.It Fl s Ar all .It Fl s Cm all
Show all of the above, except for the lists of interfaces and operating Show all of the above, except for the lists of interfaces and operating
system fingerprints. system fingerprints.
.El .El
@ -309,25 +378,25 @@ Specify the
Commands include: Commands include:
.Pp .Pp
.Bl -tag -width xxxxxxxxxxxx -compact .Bl -tag -width xxxxxxxxxxxx -compact
.It Fl T Ar kill .It Fl T Cm kill
Kill a table. Kill a table.
.It Fl T Ar flush .It Fl T Cm flush
Flush all addresses of a table. Flush all addresses of a table.
.It Fl T Ar add .It Fl T Cm add
Add one or more addresses in a table. Add one or more addresses in a table.
Automatically create a nonexisting table. Automatically create a nonexisting table.
.It Fl T Ar delete .It Fl T Cm delete
Delete one or more addresses from a table. Delete one or more addresses from a table.
.It Fl T Ar replace .It Fl T Cm replace
Replace the addresses of the table. Replace the addresses of the table.
Automatically create a nonexisting table. Automatically create a nonexisting table.
.It Fl T Ar show .It Fl T Cm show
Show the content (addresses) of a table. Show the content (addresses) of a table.
.It Fl T Ar test .It Fl T Cm test
Test if the given addresses match a table. Test if the given addresses match a table.
.It Fl T Ar zero .It Fl T Cm zero
Clear all the statistics of a table. Clear all the statistics of a table.
.It Fl T Ar load .It Fl T Cm load
Load only the table definitions from Load only the table definitions from
.Xr pf.conf 5 . .Xr pf.conf 5 .
This is used in conjunction with the This is used in conjunction with the
@ -339,16 +408,18 @@ flag, as in:
.El .El
.Pp .Pp
For the For the
.Ar add , .Cm add ,
.Ar delete , .Cm delete ,
.Ar replace .Cm replace ,
and and
.Ar test .Cm test
commands, the list of addresses can be specified either directly on the command commands, the list of addresses can be specified either directly on the command
line and/or in an unformatted text file, using the line and/or in an unformatted text file, using the
.Fl f .Fl f
flag. flag.
Comments starting with a "#" are allowed in the text file. Comments starting with a
.Sq #
are allowed in the text file.
With these commands, the With these commands, the
.Fl v .Fl v
flag can also be used once or twice, in which case flag can also be used once or twice, in which case
@ -365,11 +436,17 @@ The address/network has been changed (negated).
.It D .It D
The address/network has been deleted. The address/network has been deleted.
.It M .It M
The address matches (test operation only). The address matches
.Po
.Cm test
operation only
.Pc .
.It X .It X
The address/network is duplicated and therefore ignored. The address/network is duplicated and therefore ignored.
.It Y .It Y
The address/network cannot be added/deleted due to conflicting "!" attribute. The address/network cannot be added/deleted due to conflicting
.Sq \&!
attributes.
.It Z .It Z
The address/network has been cleared (statistics). The address/network has been cleared (statistics).
.El .El
@ -381,8 +458,8 @@ flag of
For example, the following commands define a wide open firewall which will keep For example, the following commands define a wide open firewall which will keep
track of packets going to or coming from the track of packets going to or coming from the
.Ox .Ox
ftp server. FTP server.
The following commands configure the firewall and send 10 pings to the ftp The following commands configure the firewall and send 10 pings to the FTP
server: server:
.Bd -literal -offset indent .Bd -literal -offset indent
# printf "table <test> { ftp.openbsd.org }\en \e # printf "table <test> { ftp.openbsd.org }\en \e
@ -391,11 +468,11 @@ server:
.Ed .Ed
.Pp .Pp
We can now use the table We can now use the table
.Ar show .Cm show
command to output, for each address and packet direction, the number of packets command to output, for each address and packet direction, the number of packets
and bytes that are being passed or blocked by rules referencing the table. and bytes that are being passed or blocked by rules referencing the table.
The time at which the current accounting started is also shown with the The time at which the current accounting started is also shown with the
.Ar Cleared .Dq Cleared
line. line.
.Bd -literal -offset indent .Bd -literal -offset indent
# pfctl -t test -vTshow # pfctl -t test -vTshow
@ -411,7 +488,8 @@ Similarly, it is possible to view global information about the tables
by using the by using the
.Fl v .Fl v
modifier twice and the modifier twice and the
.Ar show Tables .Fl s
.Cm Tables
command. command.
This will display the number of addresses on each table, This will display the number of addresses on each table,
the number of rules which reference the table, and the global the number of rules which reference the table, and the global
@ -432,16 +510,18 @@ packet statistics for the whole table:
.Ed .Ed
.Pp .Pp
As we can see here, only one packet \- the initial ping request \- matched the As we can see here, only one packet \- the initial ping request \- matched the
table; but all packets passing as the result of the state are correctly table, but all packets passing as the result of the state are correctly
accounted for. accounted for.
Reloading the table(s) or ruleset will not affect packet accounting in any way. Reloading the table(s) or ruleset will not affect packet accounting in any way.
The two The two
.Ar XPass .Dq XPass
counters are incremented instead of the counters are incremented instead of the
.Ar Pass .Dq Pass
counters when a "stateful" packet is passed but doesn't match the table counters when a
anymore. .Dq stateful
This will happen in our example if someone flushes the table while the ping packet is passed but doesn't match the table anymore.
This will happen in our example if someone flushes the table while the
.Xr ping 8
command is running. command is running.
.Pp .Pp
When used with a single When used with a single
@ -455,11 +535,11 @@ The flags are defined as follows:
For constant tables, which cannot be altered outside For constant tables, which cannot be altered outside
.Xr pf.conf 5 . .Xr pf.conf 5 .
.It p .It p
For persistent tables, which don't get automatically flushed when no rules For persistent tables, which don't get automatically killed when no rules
refer to them. refer to them.
.It a .It a
For tables which are part of the For tables which are part of the
.Ar active .Em active
tableset. tableset.
Tables without this flag do not really exist, cannot contain addresses, and are Tables without this flag do not really exist, cannot contain addresses, and are
only listed if the only listed if the
@ -467,7 +547,7 @@ only listed if the
flag is given. flag is given.
.It i .It i
For tables which are part of the For tables which are part of the
.Ar inactive .Em inactive
tableset. tableset.
This flag can only be witnessed briefly during the loading of This flag can only be witnessed briefly during the loading of
.Xr pf.conf 5 . .Xr pf.conf 5 .
@ -475,7 +555,7 @@ This flag can only be witnessed briefly during the loading of
For tables which are referenced (used) by rules. For tables which are referenced (used) by rules.
.It h .It h
This flag is set when a table in the main ruleset is hidden by one or more This flag is set when a table in the main ruleset is hidden by one or more
tables of the same name in sub-rulesets (anchors). tables of the same name from anchors attached below it.
.El .El
.It Fl t Ar table .It Fl t Ar table
Specify the name of the table. Specify the name of the table.
@ -484,20 +564,20 @@ Produce more verbose output.
A second use of A second use of
.Fl v .Fl v
will produce even more verbose output including ruleset warnings. will produce even more verbose output including ruleset warnings.
See previous section for its effect on table commands. See the previous section for its effect on table commands.
.It Fl x Ar level .It Fl x Ar level
Set the debug Set the debug
.Ar level .Ar level
(may be abbreviated) to one of the following: (may be abbreviated) to one of the following:
.Pp .Pp
.Bl -tag -width xxxxxxxxxxxx -compact .Bl -tag -width xxxxxxxxxxxx -compact
.It Fl x Ar none .It Fl x Cm none
Don't generate debug messages. Don't generate debug messages.
.It Fl x Ar urgent .It Fl x Cm urgent
Generate debug messages only for serious errors. Generate debug messages only for serious errors.
.It Fl x Ar misc .It Fl x Cm misc
Generate debug messages for various errors. Generate debug messages for various errors.
.It Fl x Ar loud .It Fl x Cm loud
Generate debug messages for common conditions. Generate debug messages for common conditions.
.El .El
.It Fl z .It Fl z
@ -507,12 +587,15 @@ Clear per-rule statistics.
.Bl -tag -width "/etc/pf.conf" -compact .Bl -tag -width "/etc/pf.conf" -compact
.It Pa /etc/pf.conf .It Pa /etc/pf.conf
Packet filter rules file. Packet filter rules file.
.It Pa /etc/pf.os
Passive operating system fingerprint database.
.El .El
.Sh SEE ALSO .Sh SEE ALSO
.Xr pf 4 , .Xr pf 4 ,
.Xr pf.conf 5 , .Xr pf.conf 5 ,
.Xr pf.os 5 , .Xr pf.os 5 ,
.Xr sysctl.conf 5 , .Xr sysctl.conf 5 ,
.Xr authpf 8 ,
.Xr ftp-proxy 8 , .Xr ftp-proxy 8 ,
.Xr rc 8 , .Xr rc 8 ,
.Xr rc.conf 8 , .Xr rc.conf 8 ,

1563
contrib/pf/pfctl/pfctl_optimize.c Normal file
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File diff suppressed because it is too large Load Diff

19
contrib/pf/pfctl/pfctl_osfp.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: pfctl_osfp.c,v 1.8 2004/02/27 10:42:00 henning Exp $ */ /* $OpenBSD: pfctl_osfp.c,v 1.12 2005/02/17 13:18:00 aaron Exp $ */
/* /*
* Copyright (c) 2003 Mike Frantzen <frantzen@openbsd.org> * Copyright (c) 2003 Mike Frantzen <frantzen@openbsd.org>
@ -97,8 +97,8 @@ pfctl_file_fingerprints(int dev, int opts, const char *fp_filename)
pfctl_flush_my_fingerprints(&classes); pfctl_flush_my_fingerprints(&classes);
if ((in = fopen(fp_filename, "r")) == NULL) { if ((in = pfctl_fopen(fp_filename, "r")) == NULL) {
warn("fopen(%s)", fp_filename); warn("%s", fp_filename);
return (1); return (1);
} }
class = version = subtype = desc = tcpopts = NULL; class = version = subtype = desc = tcpopts = NULL;
@ -276,9 +276,9 @@ pfctl_flush_my_fingerprints(struct name_list *list)
while ((nm = LIST_FIRST(list)) != NULL) { while ((nm = LIST_FIRST(list)) != NULL) {
LIST_REMOVE(nm, nm_entry); LIST_REMOVE(nm, nm_entry);
pfctl_flush_my_fingerprints(&nm->nm_sublist); pfctl_flush_my_fingerprints(&nm->nm_sublist);
fingerprint_count--;
free(nm); free(nm);
} }
fingerprint_count = 0;
class_count = 0; class_count = 0;
} }
@ -348,7 +348,7 @@ pfctl_get_fingerprint(const char *name)
if ((wr_name = strdup(name)) == NULL) if ((wr_name = strdup(name)) == NULL)
err(1, "malloc"); err(1, "malloc");
if ((ptr = index(wr_name, ' ')) == NULL) { if ((ptr = strchr(wr_name, ' ')) == NULL) {
free(wr_name); free(wr_name);
return (PF_OSFP_NOMATCH); return (PF_OSFP_NOMATCH);
} }
@ -508,9 +508,9 @@ pfctl_lookup_fingerprint(pf_osfp_t fp, char *buf, size_t len)
strlcat(buf, " ", len); strlcat(buf, " ", len);
strlcat(buf, version_name, len); strlcat(buf, version_name, len);
if (subtype_name) { if (subtype_name) {
if (index(version_name, ' ')) if (strchr(version_name, ' '))
strlcat(buf, " ", len); strlcat(buf, " ", len);
else if (index(version_name, '.') && else if (strchr(version_name, '.') &&
isdigit(*subtype_name)) isdigit(*subtype_name))
strlcat(buf, ".", len); strlcat(buf, ".", len);
else else
@ -702,9 +702,8 @@ fingerprint_name_entry(struct name_list *list, char *name)
nm_entry = calloc(1, sizeof(*nm_entry)); nm_entry = calloc(1, sizeof(*nm_entry));
if (nm_entry == NULL) if (nm_entry == NULL)
err(1, "calloc"); err(1, "calloc");
LIST_INIT(&nm_entry->nm_sublist); LIST_INIT(&nm_entry->nm_sublist);
strlcpy(nm_entry->nm_name, name, strlcpy(nm_entry->nm_name, name, sizeof(nm_entry->nm_name));
sizeof(nm_entry->nm_name));
} }
LIST_INSERT_HEAD(list, nm_entry, nm_entry); LIST_INSERT_HEAD(list, nm_entry, nm_entry);
return (nm_entry); return (nm_entry);

42
contrib/pf/pfctl/pfctl_radix.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: pfctl_radix.c,v 1.24 2004/02/10 18:29:30 henning Exp $ */ /* $OpenBSD: pfctl_radix.c,v 1.26 2004/06/14 20:44:22 cedric Exp $ */
/* /*
* Copyright (c) 2002 Cedric Berger * Copyright (c) 2002 Cedric Berger
@ -392,44 +392,6 @@ pfr_tst_addrs(struct pfr_table *tbl, struct pfr_addr *addr, int size,
return (0); return (0);
} }
int
pfr_ina_begin(struct pfr_table *trs, int *ticket, int *ndel, int flags)
{
struct pfioc_table io;
bzero(&io, sizeof io);
if (trs != NULL)
io.pfrio_table = *trs;
io.pfrio_flags = flags;
if (ioctl(dev, DIOCRINABEGIN, &io))
return (-1);
if (ndel != NULL)
*ndel = io.pfrio_ndel;
if (ticket != NULL)
*ticket = io.pfrio_ticket;
return (0);
}
int
pfr_ina_commit(struct pfr_table *trs, int ticket, int *nadd, int *nchange,
int flags)
{
struct pfioc_table io;
bzero(&io, sizeof io);
if (trs != NULL)
io.pfrio_table = *trs;
io.pfrio_flags = flags;
io.pfrio_ticket = ticket;
if (ioctl(dev, DIOCRINACOMMIT, &io))
return (-1);
if (nadd != NULL)
*nadd = io.pfrio_nadd;
if (nchange != NULL)
*nchange = io.pfrio_nchange;
return (0);
}
int int
pfr_ina_define(struct pfr_table *tbl, struct pfr_addr *addr, int size, pfr_ina_define(struct pfr_table *tbl, struct pfr_addr *addr, int size,
int *nadd, int *naddr, int ticket, int flags) int *nadd, int *naddr, int ticket, int flags)
@ -605,7 +567,7 @@ pfr_buf_load(struct pfr_buffer *b, char *file, int nonetwork,
if (!strcmp(file, "-")) if (!strcmp(file, "-"))
fp = stdin; fp = stdin;
else { else {
fp = fopen(file, "r"); fp = pfctl_fopen(file, "r");
if (fp == NULL) if (fp == NULL)
return (-1); return (-1);
} }

5
contrib/pf/pflogd/pflogd.8
View File

@ -1,4 +1,4 @@
.\" $OpenBSD: pflogd.8,v 1.24 2004/01/16 10:45:49 jmc Exp $ .\" $OpenBSD: pflogd.8,v 1.25 2005/01/02 18:15:02 jmc Exp $
.\" .\"
.\" Copyright (c) 2001 Can Erkin Acar. All rights reserved. .\" Copyright (c) 2001 Can Erkin Acar. All rights reserved.
.\" .\"
@ -161,7 +161,8 @@ Interface name equals "kue0".
Rule number equals 10. Rule number equals 10.
.It reason match .It reason match
Reason equals match. Reason equals match.
Also accepts "bad-offset", "fragment", "short", "normalize" and "memory". Also accepts "bad-offset", "fragment", "bad-timestamp", "short",
"normalize" and "memory".
.It action pass .It action pass
Action equals pass. Action equals pass.
Also accepts "block". Also accepts "block".

6
contrib/pf/pflogd/privsep_fdpass.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: privsep_fdpass.c,v 1.1 2003/10/22 18:51:55 canacar Exp $ */ /* $OpenBSD: privsep_fdpass.c,v 1.2 2004/08/13 02:51:48 djm Exp $ */
/* /*
* Copyright 2001 Niels Provos <provos@citi.umich.edu> * Copyright 2001 Niels Provos <provos@citi.umich.edu>
@ -108,6 +108,10 @@ receive_fd(int sock)
__func__, (long)n); __func__, (long)n);
if (result == 0) { if (result == 0) {
cmsg = CMSG_FIRSTHDR(&msg); cmsg = CMSG_FIRSTHDR(&msg);
if (cmsg == NULL) {
warnx("%s: no message header", __func__);
return -1;
}
if (cmsg->cmsg_type != SCM_RIGHTS) if (cmsg->cmsg_type != SCM_RIGHTS)
warnx("%s: expected type %d got %d", __func__, warnx("%s: expected type %d got %d", __func__,
SCM_RIGHTS, cmsg->cmsg_type); SCM_RIGHTS, cmsg->cmsg_type);