When listing anchors pfctl lists both 'regular' layer 3 anchors and
Ethernet anchors. It's possible to have the same anchor name in both,
which can be confusing.
Mitigate this a little by explicitly marking where the Ethernet anchors
start. Avoid breaking scripts by only doing this at the second level
of verbosity.
Sponsored by: Rubicon Communications, LLC ("Netgate")
Basic state tracking for SCTP. This means we scan through the packet to
identify the different chunks (so we can identify state changes).
MFC after: 3 weeks
Sponsored by: Orange Business Services
Differential Revision: https://reviews.freebsd.org/D40862
Make Ethernet rules more similar to the usual layer 3 rules by also
allowing ridentifier and labels to be set on them.
Reviewed by: kp
Sponsored by: Rubicon Communications, LLC ("Netgate")
Introduce the OpenBSD syntax of "scrub" option for "match" and "pass"
rules and the "set reassemble" flag. The patch is backward-compatible,
pf.conf can be still written in FreeBSD-style.
Obtained from: OpenBSD
MFC after: never
Sponsored by: InnoGames GmbH
Differential Revision: https://reviews.freebsd.org/D38025
It is impossible to compile pfctl with OPT_DEBUG due to integer width mismatch:
/usr/home/kajetan.staszkiewicz/freebsd.git/sbin/pfctl/pfctl_optimize.c:1479:9: error: format specifies type 'unsigned int' but the argument has type 'unsigned long' [-Werror,-Wformat]
i - pf_rule_desc[closest].prf_off--- pfctl_optimize.o ---
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/kajetan.staszkiewicz/freebsd.git/sbin/pfctl/pfctl_optimize.c:52:44: note: expanded from macro 'DEBUG'
printf("%s: " str "\n", __FUNCTION__ , ## v)
~~~ ^
1 error generated.
Reviewed by: kp
Obtained from: OpenBSD (pfctl_optimize.c 1.15)
Differential Revision: https://reviews.freebsd.org/D38918
We removed the code for these modes back in 2015, but converted such
configurations to 'scrub fragment reassemble'. It's been long enough,
drop the backwards compatibility glue too.
Reviewed by: mjg
MFC after: never
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D37460
scrub rules have defaulted to handling fragments for a long time, but
since we removed "fragment crop" and "fragment drop-ovl" in 64b3b4d611
this has become less obvious and more expensive ("reassemble" being the
more expensive option, even if it's the one the vast majority of users
should be using).
Extend the 'scrub' syntax to allow fragment reassembly to be disabled,
while retaining the other scrub behaviour (e.g. TTL changes, random-id,
..) using 'scrub fragment no reassemble'.
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D37459
Allow pf (l2) to be used to redirect ethernet packets to a different
interface.
The intended use case is to send 802.1x challenges out to a side
interface, to enable AT&T links to function with pfSense as a gateway,
rather than the AT&T provided hardware.
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D37193
When syncookies are in adaptive mode they may be active or inactive.
Expose this status to users.
Suggested by: Guido van Rooij
Sponsored by: Rubicon Communications, LLC ("Netgate")
Use time_t rather than uint32_t to represent the timestamps. That means
we have 64 bits rather than 32 on all platforms except i386, avoiding
the Y2K38 issues on most platforms.
Reviewed by: Zhenlei Huang
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D36837
Similar to the preceding fix for layer three rules, ensure that we
recursively list wildcard anchors for ethernet rules.
MFC after: 3 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D36417
Fix a couple of problems with printing of anchors, in particular recursive
printing, both of inline anchors and when requested explicitly with a '*'
in the anchor.
- Correct recursive printing of wildcard anchors (recurse into child anchors
rather than rules, which don't exist)
- Print multi-part anchor paths correctly (pr6065)
- Fix comments and prevent users from specifying multi-component names for
inline anchors.
tested by phessler
ok henning
Also fix the relevant pfctl test case to reflect the new (and now
correct) behaviour).
MFC after: 3 weeks
Obtained from: OpenBSD (mcbride, f9a568a27c740528301ca3419316c85a9fc7f1de)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D36416
Ensure that we pass the (base) anchorname to the kernel, not the '/*'
suffix.
MFC after: 3 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D36415
When the interface does not exist avoid passing host with special pf
modifiers to DNS resolution as they come up empty anyway.
Reviewed by: kp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D35429
In 1e73fbd8b we fixed an issue with POM_STICKYADDRESS being checked in
the wrong struct.
Add a basic test case for this fix.
MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
pass inet proto icmp icmp-type {unreach}
pass route-to (if0 127.0.0.1/8) sticky-address inet
The wrong struct was being tested. The parser tries to prevent
"sticky-address sticky-address" syntax but was actually cross-rule
enforcing that ICMP filter cannot be before the use of "sticky-address"
in next rule.
MFC after: 2 weeks
Reviewed by: kp
Differential Revision: https://reviews.freebsd.org/D36050
If pfctl is called with "pfctl -a ''" we read outside of the anchoropt
buffer. Check that the buffer is sufficiently long to avoid that.
Maintain the existing (and desired, because it's used as such in
/etc/periodic/security/520.pfdenied) behaviour of treating "-a ''" as a
request for the root anchor (or no anchor specified).
PR: 264128
Reviewed by: kp
Similar to ipfw rule timestamps, these timestamps internally are
uint32_t snaps of the system time in seconds. The timestamp is CPU local
and updated each time a rule or a state associated with a rule or state
is matched.
Reviewed by: kp
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34970
Since a16732d670 we always print the l3 src/destination for Ethernet
rules. Update the tests to account for this.
Sponsored by: Rubicon Communications, LLC ("Netgate")
While the kernel only performs the L3 check for
ETHERTYPE_IP/ETHERTYPE_IP6 we should always print the source and
destination addresses.
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34918
Allow tables to be used for the l3 source/destination matching.
This requires taking the PF_RULES read lock.
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34917
When asked to print rules recursively, correctly recurse for anchors
included in pf.conf with "anchorname/*".
PR: 262590
Reviewed by: kp
MFC after: 3 weeks
Disallow the use of tables in ethernet rules. Using tables requires
taking the PF_RULES lock. Moreover, the current table code isn't ready
to deal with ethernet rules.
Disallow their use for now.
Sponsored by: Rubicon Communications, LLC ("Netgate")
When retrieving nat rules in anchors we need to set the path just like
we do for regular rules.
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Allow filtering based on the source or destination IP/IPv6 address in
the Ethernet layer rules.
Reviewed by: pauamma_gundo.com (man), debdrup (man)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34482
Introduce pfctl_get_rules_info(), similar to pfctl_get_eth_rules_info()
to retrieve rules information (ticket and total number of rules).
Use the new function in pfctl.
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D34443
