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npf: Drop redundant NULL check before m_freem(9) XXX Their standalone version of m_freem() does not work for NULL input. I will send pullreq to upstream soon.
Pull up following revision(s) (requested by rmind in ticket #956): usr.sbin/npf/npf-params.7: revision 1.4 sys/net/npf/npf_worker.c: revision 1.9 usr.sbin/npf/npftest/npftest.h: revision 1.17 usr.sbin/npf/npfctl/npf_bpf_comp.c: revision 1.16 usr.sbin/npf/npf-params.7: revision 1.5 sys/net/npf/npf_state_tcp.c: revision 1.21 usr.sbin/npf/npfctl/npf_build.c: revision 1.55 usr.sbin/npf/npf-params.7: revision 1.6 sys/net/npf/npfkern.h: revision 1.5 lib/libnpf/npf.c: revision 1.49 usr.sbin/npf/npf-params.7: revision 1.7 sys/net/npf/npf_impl.h: revision 1.81 sys/net/npf/npf_ext_log.c: revision 1.17 usr.sbin/npf/npfctl/npfctl.h: revision 1.53 usr.sbin/npf/npftest/libnpftest/npf_mbuf_subr.c: revision 1.11 sys/net/npf/npf_nat.c: revision 1.50 sys/net/npf/npf_mbuf.c: revision 1.24 sys/net/npf/npf_alg.c: revision 1.22 usr.sbin/npf/npftest/libnpftest/npf_nat_test.c: revision 1.14 usr.sbin/npf/npftest/libnpftest/npf_conn_test.c: file removal usr.sbin/npf/npftest/libnpftest/npf_state_test.c: revision 1.10 sys/net/npf/npf.h: revision 1.63 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.21 usr.sbin/npf/npfctl/npf_var.c: revision 1.13 sys/net/npf/files.npf: revision 1.23 usr.sbin/npf/npfctl/npf_show.c: revision 1.32 usr.sbin/npf/npfctl/npf.conf.5: revision 1.91 sys/net/npf/npf_os.c: revision 1.18 sys/net/npf/npf_connkey.c: revision 1.2 sys/net/npf/npf_conf.c: revision 1.17 lib/libnpf/libnpf.3: revision 1.12 usr.sbin/npf/npftest/npftest.c: revision 1.25 usr.sbin/npf/npftest/libnpftest/npf_gc_test.c: revision 1.1 usr.sbin/npf/npfctl/npf_parse.y: revision 1.51 sys/net/npf/npf_tableset.c: revision 1.35 usr.sbin/npf/npftest/npftest.conf: revision 1.9 sys/net/npf/npf_sendpkt.c: revision 1.22 usr.sbin/npf/npfctl/npf_var.h: revision 1.10 sys/net/npf/npf_state.c: revision 1.23 sys/net/npf/npf_conn.h: revision 1.20 usr.sbin/npf/npfctl/npfctl.c: revision 1.64 usr.sbin/npf/npfctl/npf_cmd.c: revision 1.1 sys/net/npf/npf_portmap.c: revision 1.5 sys/net/npf/npf_params.c: revision 1.3 usr.sbin/npf/npfctl/npf_scan.l: revision 1.32 tests/net/npf/t_npf.sh: revision 1.4 sys/net/npf/npf_ext_rndblock.c: revision 1.9 lib/libnpf/npf.h: revision 1.39 sys/net/npf/npf_ruleset.c: revision 1.51 sys/net/npf/npf_alg_icmp.c: revision 1.33 sys/net/npf/npf.c: revision 1.43 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.17 usr.sbin/npf/npfctl/npfctl.8: revision 1.25 sys/net/npf/npf_ctl.c: revision 1.60 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.18 usr.sbin/npf/npftest/libnpftest/Makefile: revision 1.11 sys/net/npf/npf_handler.c: revision 1.49 sys/net/npf/npf_inet.c: revision 1.57 sys/net/npf/npf_ifaddr.c: revision 1.7 sys/net/npf/npf_conndb.c: revision 1.9 sys/net/npf/npf_if.c: revision 1.13 usr.sbin/npf/npfctl/Makefile: revision 1.15 sys/net/npf/npf_conn.c: revision 1.32 sys/net/npf/npf_ext_normalize.c: revision 1.10 sys/net/npf/npf_rproc.c: revision 1.20 sys/net/npf/npf_worker.c: revision 1.8 Major NPF improvements (merge from upstream): - Switch to the C11-style atomic primitives using atomic_loadstore(9). - npfkern: introduce the 'state.key.interface' and 'state.key.direction' settings. Users can now choose whether the connection state should be strictly per-interface or global at the configuration level. Keep NAT logic to be always per-interface, though. - npfkern: rewrite the G/C worker logic and make it self-tuning. - npfkern and libnpf: multiple bug fixes; add param exporting; introduce more parameters. Remove npf_nvlist_{copyin,copyout}() functions and refactor npfctl_load_nvlist() with others; add npfctl_run_op() to have a single entry point for operations. Introduce npf_flow_t and clean up some code. - npfctl: lots of fixes for the 'npfctl show' logic; make 'npfctl list' more informative; misc usability improvements and more user-friendly error messages. - Amend and improve the manual pages. npf_worker_sys{init,fini}: initialize/destroy the exit_cv condvar. npftest -- npf_test_init(): add a workaround for NetBSD. npf-params(7): fix the state.key defaults. npf-params.7: s/filer/filter/ Adjust to "npfctl debug" command line changes, from rmind@. Use more markup.
Major NPF improvements (merge from upstream): - Switch to the C11-style atomic primitives using atomic_loadstore(9). - npfkern: introduce the 'state.key.interface' and 'state.key.direction' settings. Users can now choose whether the connection state should be strictly per-interface or global at the configuration level. Keep NAT logic to be always per-interface, though. - npfkern: rewrite the G/C worker logic and make it self-tuning. - npfkern and libnpf: multiple bug fixes; add param exporting; introduce more parameters. Remove npf_nvlist_{copyin,copyout}() functions and refactor npfctl_load_nvlist() with others; add npfctl_run_op() to have a single entry point for operations. Introduce npf_flow_t and clean up some code. - npfctl: lots of fixes for the 'npfctl show' logic; make 'npfctl list' more informative; misc usability improvements and more user-friendly error messages. - Amend and improve the manual pages.
Mostly merge changes from HEAD upto 20200411
Pull up following revision(s) (requested by rmind in ticket #141): usr.sbin/npf/npfctl/npf_bpf_comp.c: revision 1.15 sys/net/npf/npf_alg.c: revision 1.21 sys/net/npf/npf.h: revision 1.62 sys/net/npf/npf_ctl.c: revision 1.57 sys/net/npf/npf_ctl.c: revision 1.58 sys/net/npf/npf_os.c: revision 1.16 sys/net/npf/npf_os.c: revision 1.17 sys/net/npf/npf_conf.c: revision 1.15 sys/net/npf/npf_impl.h: revision 1.78 sys/sys/mbuf.h: revision 1.220 sys/net/npf/npf_impl.h: revision 1.79 sys/net/npf/npf.c: revision 1.41 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.19 sys/net/npf/npf_nat.c: revision 1.48 sys/net/npf/npf_handler.c: revision 1.48 sys/net/npf/npf_ifaddr.c: revision 1.6 - npfctl_load_nvlist: simplify the config loading logic. - Fix a small race condition in npf_nat_getaddr(). - Rework pserialize/EBR wrappers, make it easier to maintain. Move PACKET_TAG_NPF where it belongs to. Make npfctl_switch() and pfil private to OS-specific module.
- npfctl_load_nvlist: simplify the config loading logic. - Fix a small race condition in npf_nat_getaddr(). - Rework pserialize/EBR wrappers, make it easier to maintain.
Pull up following revision(s) (requested by rmind in ticket #49): usr.sbin/npf/npf.7: revision 1.7 sys/net/npf/npfkern.h: revision 1.4 sys/net/npf/npf_conn.h: revision 1.18 usr.sbin/npf/npftest/libnpftest/npf_nat_test.c: revision 1.13 sys/net/npf/npf_ctl.c: revision 1.55 sys/net/npf/npf_os.c: revision 1.14 sys/net/npf/npf_conf.c: revision 1.14 usr.sbin/npf/npftest/libnpftest/npf_conn_test.c: revision 1.3 usr.sbin/npf/npftest/libnpftest/npf_perf_test.c: revision 1.9 sys/net/npf/npf_impl.h: revision 1.76 sys/net/npf/npf_portmap.c: revision 1.4 sys/net/npf/npf_params.c: revision 1.2 sys/net/npf/npf.c: revision 1.40 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.16 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.18 sys/net/npf/npf_nat.c: revision 1.47 sys/net/npf/npf_handler.c: revision 1.47 sys/net/npf/npf_inet.c: revision 1.55 sys/net/npf/npf_if.c: revision 1.10 sys/net/npf/npf_worker.c: revision 1.7 usr.sbin/npf/npf-params.7: revision 1.3 npf-params(7): add more bpf.jit details. From David H. Gutteridge. Adjust some internal NPF APIs: * npfkern: use the npfk_ prefix. * NPF portmap: amend the API so it could be used elsewhere. * Make npf_connkey_t public. npf.7: add xref to npf-params.7 (Adding directly here since this particular file isn't included in rmind@'s upstream GitHub repo at present.)
Adjust some internal NPF APIs: * npfkern: use the npfk_ prefix. * NPF portmap: amend the API so it could be used elsewhere. * Make npf_connkey_t public.
NPF improvements: - Add support for dynamic NETMAP algorithm (stateful net-to-net). - Add most of the support for the dynamic NAT rules; a little bit more userland work is needed to finish this up and enable. - Replace 'stateful-ends' with more permissive 'stateful-all'. - Add various tunable parameters and document them, see npf-params(7). - Reduce the memory usage of the connection state table (conndb). - Portmap rewrite: use memory more efficiently, handle addresses dynamically. - Bug fix: add splsoftnet()/splx() around the thmap writers and comment. - npftest: clean up and simplify; fix some memleaks to make ASAN happy.
Sync with HEAD
Ssync with HEAD
NPF: Major rework -- migrate NPF to the libnv library. - This conversion significantly simplifies the code and moves NPF to a binary serialisation format (replacing the XML-like format). - Fix some memory/reference leaks and possibly use-after-free bugs. - Bump NPF_VERSION as this change makes libnpf incompatible with the previous versions. Also, different serialisation format means NPF connection/config saving and loading is not compatible with the previous versions either. Thanks to christos@ for extra testing.
Sync with HEAD
Modify the logic in npf_reassembly. Don't call nbuf_reset, we don't need it since we don't read the IPv4 header anymore. If ip{6}_reass_packet fails, always free 'm', and always clear the nbuf. We want to avoid the case where 'm' was reallocated the nbuf pointer was not updated accordingly the caller tried to use the nbuf pointer This case doesn't happen right now, but the code is fragile, so strengthen it.
Remove the second argument from ip_reass_packet(). We want the IP header on the mbuf, not elsewhere. Simplifies the NPF reassembly code a little. No real functional change.
Simplify the pointer handling. Set *mp = NULL at the beginning of the function. In npf_reassembly, pass a simple boolean instead of a ** mbuf pointer. Add a KASSERT for IPv4, we don't want (error && !m). Remove the 'fastout' label, use 'out'.
Pull up following revision(s) (requested by maxv in ticket #919): sys/net/npf/npf_handler.c: revision 1.41 Update the pointer when fast-kicking, because it may have been freed. Before my changes the nonsensical pointer ininitialization held, but when I started introducing sanity checks the whole thing collapsed. Need pullup-8.
Update the pointer when fast-kicking, because it may have been freed. Before my changes the nonsensical pointer ininitialization held, but when I started introducing sanity checks the whole thing collapsed. Need pullup-8.
Set con = NULL just once, instead of doing it in each branch.
Pull up following revision(s) (requested by maxv in ticket #817): sys/net/npf/npf_inet.c: revision 1.38-1.44 sys/net/npf/npf_handler.c: revision 1.38-1.39 sys/net/npf/npf_alg_icmp.c: revision 1.26 sys/net/npf/npf.h: revision 1.56 sys/net/npf/npf_sendpkt.c: revision 1.17-1.18 Declare NPC_FMTERR, and use it to kick malformed packets. Several sanity checks are added in IPv6; after we see the first IPPROTO_FRAGMENT header, we are allowed to fail to advance, otherwise we kick the packet. Sent on tech-net@ a few days ago, no response, but I'm committing it now anyway. Switch nptr to uint8_t, and use nbuf_ensure_contig. Makes us use fewer magic values. Remove dead branches, 'npc' can't be NULL (and it is dereferenced earlier). Fix two consecutive mistakes. The first mistake was npf_inet.c rev1.37: "Don't reassemble ipv6 fragments, instead treat the first fragment as a regular packet (subject to filtering rules), and pass subsequent fragments in the same group unconditionally." Doing this was entirely wrong, because then a packet just had to push the L4 payload in a secondary fragment, and NPF wouldn't apply rules on it - meaning any IPv6 packet could bypass >=L4 filtering. This mistake was supposed to be a fix for the second mistake. The second mistake was that ip6_reass_packet (in npf_reassembly) was getting called with npc->npc_hlen. But npc_hlen pointed to the last encountered header in the IPv6 chain, which was not necessarily the fragment header. So ip6_reass_packet was given garbage, and would fail, resulting in the packet getting kicked. So basically IPv6 was broken by NPF. The first mistake is reverted, and the second one is fixed by doing: - hlen = sizeof(struct ip6_frag); + hlen = 0; Now the iteration stops on the fragment header, and the call to ip6_reass_packet is valid. My npf_inet.c rev1.38 is partially reverted: we don't need to worry about failing properly to advance; once the packet is reassembled npf_cache_ip gets called again, and this time the whole chain should be there. Tested with a simple UDPv6 server - send a 3000-byte-sized buffer, the packet gets correctly reassembled by NPF now. Mmh, put back the RFC6946 check (about dummy fragments), otherwise NPF is not happy in npf_reassembly, because NPC_IPFRAG is again returned after the packet was reassembled. I'm wondering whether it would not be better to just remove the fragment header in frag6_input directly. Fix the "return-rst" rule on IPv6 packets. The scopes needed to be set on the addresses before invoking ip6_output, because ip6_output needs them. The reason they are not here already is because pfil_run_hooks (in ip6_input) is called _before_ the kernel initializes the scopes. Until now ip6_output was always failing, and the IPv6-TCP-RST packet was never actually sent. Perhaps it would be better to have the kernel initialize the scopes before invoking pfil_run_hooks, but several things will need to be fixed in several places. Tested with a simple TCPv6 server. Until now the client would block waiting for an answer that never came; now it receives an RST right away and closes the connection, as expected. I believe that the same problem exists in the "return-icmp" rules, but I can't investigate this right now (some problems with wireshark). Fix the IPv6 payload computation in npf_tcpsaw. It was incorrect, and this caused the "return-rst" rules to send back an RST with the wrong ACK when the received SYN had an IPv6 option. Set the scopes before calling icmp6_error(). This fixes a bug similar to the one I fixed in rev1.17: since the scopes were not set the packet was never actually sent. Tested with wireshark, now the ICMPv6 reply is correctly sent, as expected. Don't read the L4 payload after IPPROTO_AH when handling IPv6 packets. AH must be considered as the payload, otherwise a block all pass in proto ah from any pass out proto ah from any configuration will actually block everything, because NPF checks the protocol against the one found after AH, and not AH itself. In addition it may have been a problem for stateful connections; an AH packet sent by an attacker with an incorrect authentication and a correct TCP/UDP/whatever payload from an active connection could manage to change NPF's FSM state, which would perhaps have altered the legitimate connection with the authenticated remote IPsec host. Note that IPv4 already doesn't go beyond AH, which is the correct behavior. Add XXX (we don't handle IPv6 Jumbograms), and whitespace.
Synch with HEAD
Fix two consecutive mistakes. The first mistake was npf_inet.c rev1.37: "Don't reassemble ipv6 fragments, instead treat the first fragment as a regular packet (subject to filtering rules), and pass subsequent fragments in the same group unconditionally." Doing this was entirely wrong, because then a packet just had to push the L4 payload in a secondary fragment, and NPF wouldn't apply rules on it - meaning any IPv6 packet could bypass >=L4 filtering. This mistake was supposed to be a fix for the second mistake. The second mistake was that ip6_reass_packet (in npf_reassembly) was getting called with npc->npc_hlen. But npc_hlen pointed to the last encountered header in the IPv6 chain, which was not necessarily the fragment header. So ip6_reass_packet was given garbage, and would fail, resulting in the packet getting kicked. So basically IPv6 was broken by NPF. The first mistake is reverted, and the second one is fixed by doing: - hlen = sizeof(struct ip6_frag); + hlen = 0; Now the iteration stops on the fragment header, and the call to ip6_reass_packet is valid. My npf_inet.c rev1.38 is partially reverted: we don't need to worry about failing properly to advance; once the packet is reassembled npf_cache_ip gets called again, and this time the whole chain should be there. Tested with a simple UDPv6 server - send a 3000-byte-sized buffer, the packet gets correctly reassembled by NPF now.
Declare NPC_FMTERR, and use it to kick malformed packets. Several sanity checks are added in IPv6; after we see the first IPPROTO_FRAGMENT header, we are allowed to fail to advance, otherwise we kick the packet. Sent on tech-net@ a few days ago, no response, but I'm committing it now anyway.
update from HEAD
Sync with HEAD
Sync with HEAD
Sync with HEAD
Don't reassemble ipv6 fragments, instead treat the first fragment as a regular packet (subject to filtering rules), and pass subsequent fragments in the same group unconditionally.
Sync with HEAD
- Increase copyin buffer size to 4M - Change log output format to be like the OpenBSD's pf including in the header the matching rule etc, and fill in the matching info.
Sync with HEAD. (Note that most of these changes are simply $NetBSD$ tag issues.)
Sync NPF with the version on github: backport standalone NPF changes, which allow us to create and run separate NPF instances. Minor fixes. (from rmind@)
NPF: adjust the 'stateful-ends' mechanism to tag the packets and thus pass-through them on other interfaces. Per discussion with christos@.
Rebase to HEAD as of a few days ago.
Rebase.
NPF: rework of the connection saving and restoring: - Add support for saving a snapshot of the current connections together with a full configuration. Support a reverse load operation. Eliminate the old 'sess-save' and 'sess-load' in favour of the new mechanism. - Share code between load and reload operations: the latter performs load from npf.conf without affecting the connections. - Simplify and fix races with connection loading. - Bump NPF_VERSION.
NPF: add nbuf_t * into npf_cache_t and remove unnecessary carrying by argument.
NPF: partially rewrite the connection tracking mechanism: - Separate the tracking interface from the storage (state table) and thus prepare to use a new data structure for the storage. - Fix some race conditions in NAT association logic.
sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
Add ability to have mbufs disappear (to another interface) during npf_rproc_run(). For upcoming npf_ext_route extension. Guidance and ok by rmind@.
sync with head
NPF: add support for "stateful-ends".
NPF: add support for specifying the interfaces before they are attached. If an interface is or gets detached, all associated rules and connections will be deactivated (it might be useful to have an option to invalidate the associated connections). Once the interface is reattached they will become active. Bump NPF_VERSION.
sync with head
- Rewrite parts of pfil(9): use array to store hooks and thus be more cache friendly (there are only few hooks in the system). Make the structures opaque and the interface more strict. - Remove PFIL_HOOKS option by making pfil(9) mandatory.
resync with head
Pull up following revision(s) (requested by rmind in ticket #817): usr.sbin/npf/npfctl/npfctl.8: revision 1.12 usr.sbin/npf/npfctl/npf.conf.5: revision 1.27 usr.sbin/npf/npfctl/npf_parse.y: revision 1.18 usr.sbin/npf/npfctl/npf_build.c: revision 1.20 usr.sbin/npf/npfctl/npfctl.c: revision 1.28 lib/libnpf/npf.c: revision 1.16 usr.sbin/npf/npfctl/npfctl.c: revision 1.29 lib/libnpf/npf.c: revision 1.17 sys/modules/npf/Makefile: revision 1.12 sys/net/npf/npf_rproc.c: revision 1.6 usr.sbin/npf/npftest/README: revision 1.4 sys/net/npf/npf_tableset.c: revision 1.17 sys/net/npf/npf_ctl.c: revision 1.21 sys/net/npf/npf_ctl.c: revision 1.22 usr.sbin/npf/npfctl/npfctl.h: revision 1.25 lib/libnpf/npf.h: revision 1.13 usr.sbin/npf/npftest/npftest.conf: revision 1.2 usr.sbin/npf/npfctl/npfctl.h: revision 1.26 sys/net/npf/npf_ruleset.c: revision 1.17 lib/libnpf/npf.h: revision 1.14 sys/net/npf/npf_ruleset.c: revision 1.18 sys/net/npf/npf_conf.c: revision 1.1 usr.sbin/npf/npfctl/npf_scan.l: revision 1.10 sys/net/npf/npf_conf.c: revision 1.2 sys/net/npf/npf_instr.c: revision 1.16 sys/net/npf/npf_handler.c: revision 1.26 sys/net/npf/npf_impl.h: revision 1.26 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.14 sys/net/npf/npf_processor.c: revision 1.15 sys/net/npf/npf_impl.h: revision 1.27 sys/net/npf/npf_alg_icmp.c: revision 1.15 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.15 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.16 sys/net/npf/npf_ncode.h: revision 1.11 sys/net/npf/files.npf: revision 1.10 usr.sbin/npf/npftest/Makefile: revision 1.4 usr.sbin/npf/npfctl/npfctl.c: revision 1.30 lib/libnpf/npf.3: revision 1.8 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.4 sys/net/npf/npf_session.c: revision 1.21 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.5 usr.sbin/npf/npfctl/npf_build.c: revision 1.18 usr.sbin/npf/npfctl/npf_build.c: revision 1.19 sys/net/npf/npf_alg.c: revision 1.7 usr.sbin/npf/npfctl/Makefile: revision 1.10 sys/net/npf/npf_inet.c: revision 1.21 sys/net/npf/npf.h: revision 1.26 sys/net/npf/npf.h: revision 1.27 usr.sbin/pf/ftp-proxy/Makefile: revision 1.8 sys/net/npf/npf_nat.c: revision 1.19 sys/net/npf/npf.c: revision 1.15 sys/net/npf/npf_state.c: revision 1.14 sys/net/npf/npf_sendpkt.c: revision 1.14 sys/rump/net/lib/libnpf/Makefile: revision 1.4 IPv6 linklocal address printing cosmetics NPF: - Implement dynamic NPF rules. Controlled through npf(3) library of via npfctl rule command. A rule can be removed using a unique identifier, returned on addition, or using a key which is SHA1 hash of the rule. Adjust npftest and add a regression test. - Improvements to rule inspection mechanism. - Initial BPF support as an alternative to n-code. - Minor fixes; bump the version. Disable -DWITH_NPF for now; will be converted to BPF mechanism. - Fix NPF config reload with dynamic rules present. - Implement list and flush commands on a dynamic ruleset. Allow filtering on IP addresses even if the L4 protocol is unknown. Patch from spz@. npftest: adjust for recent change.
NPF: - Implement dynamic NPF rules. Controlled through npf(3) library of via npfctl rule command. A rule can be removed using a unique identifier, returned on addition, or using a key which is SHA1 hash of the rule. Adjust npftest and add a regression test. - Improvements to rule inspection mechanism. - Initial BPF support as an alternative to n-code. - Minor fixes; bump the version.
Pull up following revision(s) (requested by rmind in ticket #777): usr.sbin/npf/npfctl/npfctl.c: revision 1.27 sys/net/npf/npf_session.c: revision 1.19 usr.sbin/npf/npftest/libnpftest/npf_mbuf_subr.c: revision 1.4 sys/net/npf/npf_rproc.c: revision 1.5 usr.sbin/npf/npftest/README: revision 1.3 sys/sys/mbuf.h: revision 1.151 sys/net/npf/npf_ruleset.c: revision 1.15 usr.sbin/npf/npftest/libnpftest/npf_nbuf_test.c: revision 1.3 sys/net/npf/npf_ruleset.c: revision 1.16 usr.sbin/npf/npftest/libnpftest/npf_state_test.c: revision 1.4 usr.sbin/npf/npftest/libnpftest/npf_nbuf_test.c: revision 1.4 sys/net/npf/npf_inet.c: revision 1.19 sys/net/npf/npf_instr.c: revision 1.15 sys/net/npf/npf_handler.c: revision 1.24 sys/net/npf/npf_handler.c: revision 1.25 sys/net/npf/npf_state_tcp.c: revision 1.12 sys/net/npf/npf_processor.c: revision 1.13 sys/net/npf/npf_impl.h: revision 1.25 sys/net/npf/npf_processor.c: revision 1.14 sys/net/npf/npf_mbuf.c: revision 1.10 sys/net/npf/npf_alg_icmp.c: revision 1.14 sys/net/npf/npf_mbuf.c: revision 1.9 usr.sbin/npf/npftest/libnpftest/npf_nat_test.c: revision 1.2 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.3 sys/net/npf/npf_session.c: revision 1.20 sys/net/npf/npf_alg.c: revision 1.6 sys/kern/uipc_mbuf.c: revision 1.148 sys/net/npf/npf_inet.c: revision 1.20 sys/net/npf/npf.h: revision 1.25 sys/net/npf/npf_nat.c: revision 1.18 sys/net/npf/npf_state.c: revision 1.13 sys/net/npf/npf_sendpkt.c: revision 1.13 sys/net/npf/npf_ext_log.c: revision 1.2 usr.sbin/npf/npftest/libnpftest/npf_processor_test.c: revision 1.4 sys/net/npf/npf_ext_normalise.c: revision 1.2 - Rework NPF's nbuf interface: use advancing and ensuring as a main method. Eliminate unnecessary copy and simplify. Adapt regression tests. - Simplify ICMP ALG a little. While here, handle ICMP ECHO for traceroute. - Minor fixes, misc cleanup. Silence gcc in npf_recache(). Add m_ensure_contig() routine, which is equivalent to m_pullup, but does not destroy the mbuf chain on failure (it is kept valid). - nbuf_ensure_contig: rework to use m_ensure_contig(9), which will not free the mbuf chain on failure. Fixes some corner cases. Improve regression test and sprinkle some asserts. - npf_reassembly: clear nbuf on IPv6 reassembly failure path (partial fix). The problem was found and fix provided by Anthony Mallet.
sync with head
- nbuf_ensure_contig: rework to use m_ensure_contig(9), which will not free the mbuf chain on failure. Fixes some corner cases. Improve regression test and sprinkle some asserts. - npf_reassembly: clear nbuf on IPv6 reassembly failure path (partial fix). The problem was found and fix provided by Anthony Mallet.
- Rework NPF's nbuf interface: use advancing and ensuring as a main method. Eliminate unnecessary copy and simplify. Adapt regression tests. - Simplify ICMP ALG a little. While here, handle ICMP ECHO for traceroute. - Minor fixes, misc cleanup.
Resync to 2012-11-19 00:00:00 UTC
Pull up following revision(s) (requested by rmind in ticket #693): lib/npf/ext_normalise/shlib_version: revision 1.1 lib/libnpf/npf.c: revision 1.13 distrib/sets/lists/modules/mi: revision 1.48 sys/net/npf/npf_rproc.c: revision 1.3 sys/net/npf/npf_rproc.c: revision 1.4 sys/modules/npf/Makefile: revision 1.11 usr.sbin/npf/npfctl/npfctl.h: revision 1.20 lib/npf/ext_log/npfext_log.c: revision 1.1 lib/libnpf/npf.h: revision 1.11 sys/net/npf/npf_inet.c: revision 1.17 sys/net/npf/npf_log.c: file removal sys/net/npf/npf_handler.c: revision 1.22 distrib/sets/lists/base/shl.mi: revision 1.636 sys/net/npf/npf_impl.h: revision 1.23 usr.sbin/npf/npfctl/Makefile: revision 1.8 lib/npf/Makefile: revision 1.1 lib/npf/ext_log/shlib_version: revision 1.1 lib/Makefile: revision 1.189 distrib/sets/lists/comp/shl.mi: revision 1.236 usr.sbin/npf/npfctl/npf_build.c: revision 1.14 distrib/sets/lists/base/mi: revision 1.1007 usr.sbin/npf/npfctl/npf_scan.l: revision 1.6 distrib/sets/lists/base/mi: revision 1.1009 sys/net/npf/npf.h: revision 1.21 lib/npf/ext_normalise/npfext_normalise.c: revision 1.1 etc/mtree/NetBSD.dist.base: revision 1.105 lib/libnpf/Makefile: revision 1.3 etc/mtree/NetBSD.dist.base: revision 1.106 usr.sbin/npf/npfctl/npf_extmod.c: revision 1.1 sys/net/npf/npf_ctl.c: revision 1.18 lib/npf/ext_log/Makefile: revision 1.1 distrib/sets/lists/comp/mi: revision 1.1781 usr.sbin/npf/npfctl/npf_var.h: revision 1.4 sys/net/npf/npf.c: revision 1.13 sys/modules/Makefile: revision 1.111 sys/net/npf/npf_ext_log.c: revision 1.1 lib/npf/Makefile.inc: revision 1.1 sys/net/npf/npf_ext_normalise.c: revision 1.1 sys/net/npf/files.npf: revision 1.8 sys/rump/net/lib/libnpf/Makefile: revision 1.2 sys/modules/npf_ext_log/Makefile: revision 1.1 lib/npf/ext_normalise/Makefile: revision 1.1 usr.sbin/npf/npfctl/npfctl.c: revision 1.20 usr.sbin/npf/npfctl/npf_parse.y: revision 1.13 sys/modules/npf_ext_normalise/Makefile: revision 1.1 Implement dynamic NPF extensions interface. An extension consists of dynamically loaded module (.so) supplementing npfctl(8) and a kernel module. Move normalisation and logging functionality into their own extensions. More improvements to come. Add /usr/lib/npf. Add ./usr/libdata/debug/usr/lib/npf for rmind Fix MKDEBUG set lists ext_ops does not change during the life cycle and can be fetched without the mutex held. This avoids confusion in the compiler about an uninitialized variable ext_ops. ok rmind@
sync with netbsd-6-0-RELEASE.
sync with head
Pull up following revision(s) (requested by rmind in ticket #594): sys/net/npf/npf_handler.c: revision 1.23 npf_packet_handler: drop the packet if IPv6 reassembly did not work.
npf_packet_handler: drop the packet if IPv6 reassembly did not work.
Implement dynamic NPF extensions interface. An extension consists of dynamically loaded module (.so) supplementing npfctl(8) and a kernel module. Move normalisation and logging functionality into their own extensions. More improvements to come.
Pull up following revision(s) (requested by rmind in ticket #485): lib/libnpf/npf.c: revision 1.11 sys/net/npf/npf_session.c: revision 1.17 sys/modules/npf/Makefile: revision 1.10 usr.sbin/npf/npftest/npftest.c: revision 1.4 usr.sbin/npf/npftest/README: revision 1.1 sys/net/npf/npf_tableset.c: revision 1.14 usr.sbin/npf/npftest/npftest.h: revision 1.4 lib/libnpf/npf.h: revision 1.10 sys/net/npf/npf_ruleset.c: revision 1.14 usr.sbin/npf/npfctl/npf_data.c: revision 1.18 usr.sbin/npf/npftest/npftest.conf: revision 1.1 sys/net/npf/npf_handler.c: revision 1.21 sys/net/npf/npf_impl.h: revision 1.21 usr.sbin/npf/npfctl/npfctl.c: revision 1.18 usr.sbin/npf/npftest/libnpftest/npf_nat_test.c: revision 1.1 usr.sbin/npf/npfctl/npf_build.c: revision 1.13 usr.sbin/npf/npftest/libnpftest/npf_rule_test.c: revision 1.1 usr.sbin/npf/npftest/npfstream.c: revision 1.3 usr.sbin/npf/npftest/libnpftest/Makefile: revision 1.4 usr.sbin/npf/npfctl/npfctl.h: revision 1.19 sys/net/npf/npf_nat.c: revision 1.16 sys/net/npf/npf_state.c: revision 1.11 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.3 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.5 usr.sbin/npf/npfctl/npf_parse.y: revision 1.12 - Extend npftest: add ruleset inspection testing from the config generated by npfctl debug functionality. Auto-create npftest interfaces for this. - NPF sessions: combine protocol and interface into a separate substructure, share between the entries and thus fix the handling of them. Constify. - npftest: add regression tests for NAT policies. - npf_build_nat: simplify and fix bi-NAT regression. - Bump yacc stack size for npfctl.
- Extend npftest: add ruleset inspection testing from the config generated by npfctl debug functionality. Auto-create npftest interfaces for this. - NPF sessions: combine protocol and interface into a separate substructure, share between the entries and thus fix the handling of them. Constify. - npftest: add regression tests for NAT policies. - npf_build_nat: simplify and fix bi-NAT regression. - Bump yacc stack size for npfctl.
Pull up following revision(s) (requested by rmind in ticket #421): lib/libnpf/npf.c: revision 1.10 sys/net/npf/npf_session.c: revision 1.15 sys/net/npf/npf_tableset.c: revision 1.13 sys/net/npf/npf_state_tcp.c: revision 1.9 usr.sbin/npf/npfctl/npf_data.c: revision 1.15 sys/net/npf/npf_inet.c: revision 1.14 sys/net/npf/npf_ruleset.c: revision 1.13 sys/net/npf/npf.h: revision 1.19 usr.sbin/npf/npfctl/npf_ncgen.c: revision 1.12 sys/net/npf/npf_instr.c: revision 1.13 sys/net/npf/npf_handler.c: revision 1.20 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.4 sys/net/npf/npf_alg_icmp.c: revision 1.10 usr.sbin/npf/npfctl/npfctl.c: revision 1.15 usr.sbin/npf/npfctl/npf_build.c: revision 1.11 lib/libnpf/npf.h: revision 1.9 sys/net/npf/npf_alg.c: revision 1.5 sys/rump/dev/lib/libnpf/Makefile: revision 1.4 usr.sbin/npf/npfctl/npfctl.h: revision 1.17 sys/net/npf/npf_ctl.c: revision 1.16 sys/net/npf/npf_nat.c: revision 1.15 sys/net/npf/npf_tableset_ptree.c: revision 1.1 sys/net/npf/npf.c: revision 1.12 sys/net/npf/npf_sendpkt.c: revision 1.12 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.7 sys/net/npf/npf_impl.h: revision 1.18 sys/net/npf/files.npf: revision 1.7 usr.sbin/npf/npfctl/npf_parse.y: revision 1.10 - Rework NPF tables and fix support for IPv6. Implement tree table type using radix / Patricia tree. Universal IPv4/IPv6 comparator for ptree(3) was contributed by Matt Thomas. - NPF tables: update regression tests, improve npfctl(8) error messages. - Fix few bugs when using kernel modules and handle module autounloader. - Few other fixes and misc cleanups. - Bump the version.
- Rework NPF tables and fix support for IPv6. Implement tree table type using radix / Patricia tree. Universal IPv4/IPv6 comparator for ptree(3) was contributed by Matt Thomas. - NPF tables: update regression tests, improve npfctl(8) error messages. - Fix few bugs when using kernel modules and handle module autounloader. - Few other fixes and misc cleanups. - Bump the version.
Pull up following revision(s) (requested by rmind in ticket #399): sys/net/npf/npf_session.c: revision 1.14 sys/net/npf/npf_tableset.c: revision 1.12 sys/net/npf/npf_state_tcp.c: revision 1.8 usr.sbin/npf/npftest/libnpftest/npf_mbuf_subr.c: revision 1.3 usr.sbin/npf/npfctl/npf_data.c: revision 1.14 sys/net/npf/npf_inet.c: revision 1.13 sys/net/npf/npf_ruleset.c: revision 1.12 sys/net/npf/npf.h: revision 1.18 usr.sbin/npf/npfctl/npf_ncgen.c: revision 1.11 usr.sbin/npf/npfctl/npfctl.8: revision 1.7 usr.sbin/npf/npfctl/npf_parse.y: revision 1.9 usr.sbin/npf/npftest/libnpftest/npf_state_test.c: revision 1.2 usr.sbin/npf/npfctl/npfctl.8: revision 1.8 sys/net/npf/npf_instr.c: revision 1.12 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.3 usr.sbin/npf/npfctl/npf.conf.5: revision 1.13 usr.sbin/npf/npfctl/npf.conf.5: revision 1.14 sys/net/npf/npf_state.c: revision 1.9 sys/net/npf/npf_processor.c: revision 1.11 usr.sbin/npf/npfctl/npfctl.c: revision 1.13 usr.sbin/npf/npfctl/npfctl.c: revision 1.14 usr.sbin/npf/npfctl/npf_build.c: revision 1.10 lib/libnpf/npf.3: revision 1.5 lib/libnpf/npf.h: revision 1.8 share/man/man9/npf_ncode.9: revision 1.9 usr.sbin/npf/npfctl/npf_scan.l: revision 1.4 lib/libnpf/npf.c: revision 1.9 usr.sbin/npf/npfctl/npfctl.h: revision 1.16 sys/net/npf/npf_nat.c: revision 1.14 usr.sbin/npf/npftest/libnpftest/npf_processor_test.c: revision 1.2 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.6 sys/net/npf/npf_impl.h: revision 1.17 sys/net/npf/npf_handler.c: revision 1.18 sys/net/npf/npf_handler.c: revision 1.19 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.4 sys/net/npf/npf_ncode.h: revision 1.9 Fix and update npf.conf(5), npfctl(8) and its usage message. npf_state_tcp: fix for FIN retransmission and out-of-order ACK case. NPF improvements: - Add NPF_OPCODE_PROTO to match the address and/or protocol only. - Update parser to support arbitrary "pass proto <name/number>". - Fix IPv6 address and protocol handling (add a regression test). - Fix few theorethical races in session handling module. - Misc fixes, simplifications and some clean up. npf_packet_handler: fix gcc unused warning.
npf_packet_handler: fix gcc unused warning.
NPF improvements: - Add NPF_OPCODE_PROTO to match the address and/or protocol only. - Update parser to support arbitrary "pass proto <name/number>". - Fix IPv6 address and protocol handling (add a regression test). - Fix few theorethical races in session handling module. - Misc fixes, simplifications and some clean up.
Pull up following revision(s) (requested by rmind in ticket #354): sys/net/npf/npf_state_tcp.c: revision 1.4 sys/net/npf/npf_state_tcp.c: revision 1.5 sys/net/npf/npf_state_tcp.c: revision 1.6 usr.sbin/npf/npftest/npftest.c: revision 1.1 usr.sbin/npf/npftest/libnpftest/npf_mbuf_subr.c: revision 1.1 usr.sbin/npf/npftest/npftest.c: revision 1.2 usr.sbin/npf/npftest/libnpftest/npf_mbuf_subr.c: revision 1.2 usr.sbin/npf/npfctl/npf_data.c: revision 1.11 usr.sbin/npf/npftest/npftest.c: revision 1.3 usr.sbin/npf/npfctl/npf_data.c: revision 1.12 usr.sbin/npf/npftest/npftest.h: revision 1.1 usr.sbin/npf/npfctl/npf_parse.y: revision 1.5 usr.sbin/npf/npfctl/npf_data.c: revision 1.13 sys/net/npf/npf.h: revision 1.16 usr.sbin/npf/npftest/npftest.h: revision 1.2 usr.sbin/npf/npfctl/npf_parse.y: revision 1.6 usr.sbin/npf/npftest/npftest.h: revision 1.3 usr.sbin/npf/npfctl/npf_parse.y: revision 1.7 usr.sbin/npf/npfctl/npf_ncgen.c: revision 1.10 usr.sbin/npf/npfctl/npf_build.c: revision 1.6 usr.sbin/npf/npfctl/npf_parse.y: revision 1.8 usr.sbin/npf/npfctl/npf_build.c: revision 1.7 usr.sbin/npf/npftest/libnpftest/npf_state_test.c: revision 1.1 usr.sbin/npf/npftest/libnpftest/npf_nbuf_test.c: revision 1.1 usr.sbin/npf/npfctl/npf_build.c: revision 1.8 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.1 usr.sbin/npf/npfctl/npf_build.c: revision 1.9 usr.sbin/npf/npfctl/npf.conf.5: revision 1.10 usr.sbin/npf/npfctl/npf.conf.5: revision 1.11 usr.sbin/npf/npfctl/npf.conf.5: revision 1.12 sys/net/npf/npf_state.c: revision 1.7 usr.sbin/npf/npfctl/npfctl.c: revision 1.11 usr.sbin/npf/npfctl/npfctl.c: revision 1.12 usr.sbin/npf/npfctl/Makefile: revision 1.7 sys/rump/net/lib/libnet/Makefile: revision 1.14 sys/net/npf/npf_mbuf.c: revision 1.7 usr.sbin/npf/npftest/Makefile: revision 1.1 usr.sbin/npf/npftest/Makefile: revision 1.2 usr.sbin/npf/npftest/libnpftest/Makefile: revision 1.1 usr.sbin/npf/npfctl/npf_scan.l: revision 1.2 usr.sbin/npf/npftest/npfstream.c: revision 1.1 usr.sbin/npf/npftest/libnpftest/Makefile: revision 1.2 usr.sbin/npf/npfctl/npf_scan.l: revision 1.3 usr.sbin/npf/npftest/libnpftest/Makefile: revision 1.3 usr.sbin/npf/npfctl/npfctl.h: revision 1.12 sys/rump/dev/lib/libnpf/Makefile: revision 1.2 usr.sbin/npf/npfctl/npfctl.h: revision 1.14 sys/rump/dev/lib/libnpf/Makefile: revision 1.3 usr.sbin/npf/npfctl/npfctl.h: revision 1.15 usr.sbin/npf/npfctl/npf_ncgen.c: revision 1.9 sys/net/npf/npf_ctl.c: revision 1.15 usr.sbin/npf/npfctl/npf_var.c: revision 1.4 usr.sbin/npf/npfctl/npf_var.h: revision 1.2 usr.sbin/npf/npfctl/npf_var.c: revision 1.5 sys/net/npf/npf_impl.h: revision 1.13 sys/net/npf/npf_sendpkt.c: revision 1.10 sys/net/npf/npf_impl.h: revision 1.14 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.4 sys/net/npf/npf_impl.h: revision 1.15 sys/net/npf/npf_handler.c: revision 1.16 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.1 usr.sbin/npf/npftest/libnpftest/npf_processor_test.c: revision 1.1 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.5 sys/net/npf/npf_handler.c: revision 1.17 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.2 sys/net/npf/npf_ncode.h: revision 1.7 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.1 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.3 sys/net/npf/npf_ncode.h: revision 1.8 npf_tcp_inwindow: in a case of negative skew, bump the maximum seen value of SEQ+LEN in the receiver's side correctly (using ACK from the sender's side). PR/46265 from Changli Gao. rumpnet_net: add pfil.c Update rumpdev_npf; use WARNS=4. Add initial NPF regression tests integrated with RUMP framework (running the kernel part of NPF in userland). Other tests will be added once converted to RUMP framework. All tests are in the public domain. Some Makefile fixes from christos@. - Fix double-free case on ICMP return case. - npf_pfil_register: handle kernels without INET6 option correctly. - Reduce some #ifdefs. npfctl(8): add show-config command. Also, update syntax. npftest: add a stream processor, which prints out the TCP state information. A tool for debugging connection tracking from tcpdump -w captured data. npftest: add a module for TCP state tracking and add few test cases. npf_state_tcp: add an assert; fix some comments while here. - Rework NPF NAT syntax to be more structured and support future additions of different types and configurations of NAT. - npfctl: improve disassemble and show-config command functionality. - Fix custom ICMP code and type filtering. make this compile again. remove error(1) output Remove superfluous Pp - make each element of a variable hold a type - change get_type to take an index, so we can get the individual types of each element (since primitive elements can be in lists) - make port_range primitive - add a routine to convert a variable of primitives to a variable containing - only port ranges. remove extra rule that got merged...
sync to latest -current.
npftest: add a stream processor, which prints out the TCP state information. A tool for debugging connection tracking from tcpdump -w captured data.
sync with head.
- Fix double-free case on ICMP return case. - npf_pfil_register: handle kernels without INET6 option correctly. - Reduce some #ifdefs.
sync with head
sync to latest -current.
Pull up following revision(s) (requested by rmind in ticket #158): sys/net/npf/npf_session.c: revision 1.12 sys/net/npf/npf_tableset.c: revision 1.10 sys/net/npf/npf_rproc.c: revision 1.2 usr.sbin/npf/npfctl/npf_parse.y: revision 1.4 sys/net/npf/npf_inet.c: revision 1.11 sys/net/npf/npf.h: revision 1.15 usr.sbin/npf/npfctl/npf_build.c: revision 1.5 sys/net/npf/npf_ruleset.c: revision 1.11 sys/net/npf/npf_instr.c: revision 1.10 usr.sbin/npf/npfctl/Makefile: revision 1.6 sys/net/npf/npf_processor.c: revision 1.10 sys/net/npf/npf_log.c: revision 1.3 lib/libnpf/npf.h: revision 1.7 sys/net/npf/npf_alg.c: revision 1.3 sys/net/npf/npf_sendpkt.c: revision 1.9 lib/libnpf/npf.c: revision 1.8 usr.sbin/npf/npfctl/npfctl.h: revision 1.13 sys/net/npf/npf_ctl.c: revision 1.13 usr.sbin/npf/npfctl/npf_ncgen.c: revision 1.8 sys/net/npf/npf_ctl.c: revision 1.14 sys/net/npf/npf_nat.c: revision 1.11 sys/net/npf/npf_nat.c: revision 1.12 sys/net/npf/npf_impl.h: revision 1.11 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.1 sys/net/npf/npf_impl.h: revision 1.12 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.2 sys/net/npf/npf_handler.c: revision 1.14 usr.sbin/npf/npfctl/npf_disassemble.c: revision 1.3 sys/net/npf/npf_handler.c: revision 1.15 sys/net/npf/npf_ncode.h: revision 1.6 sys/net/npf/npf.c: revision 1.8 sys/net/npf/npf.c: revision 1.9 sys/net/npf/npf_alg_icmp.c: revision 1.9 sys/net/npf/npf_session.c: revision 1.11 - Add NPF_DECISION_BLOCK and NPF_DECISION_PASS. Be more defensive in the packet handler. Change the default policy to block when the config is loaded and set it to pass when flush operation is performed. - Use kmem_zalloc(9) instead of kmem_alloc(9) in few places. - npf_rproc_{create,release}: use kmem_intr_{alloc,free} as the destruction of rule procedure might happen in the interrupt handler (under a very rare condition, if config reload races with the handler). - npf_session_establish: check whether layer 3 and 4 are cached. - npfctl_build_group: do not make groups as passing rules. - Remove some unecessary header inclusion. Simplify slightly: merge iface into addr_or_iface, use it in filt_addr. Add a small disassembler. definitions used by the disassembler. - better printing of type/code flags/mask - pass the instruction start pointer, instead of subtracting 1 to account for it - Save active config in proplib dictionary; add GETCONF ioctl to retrieve. - Few fixes. Improve some comments. don't leak the branch target array. Add NPF config retrieval routines.
- Save active config in proplib dictionary; add GETCONF ioctl to retrieve. - Few fixes. Improve some comments.
sync to -current.
- Add NPF_DECISION_BLOCK and NPF_DECISION_PASS. Be more defensive in the packet handler. Change the default policy to block when the config is loaded and set it to pass when flush operation is performed. - Use kmem_zalloc(9) instead of kmem_alloc(9) in few places. - npf_rproc_{create,release}: use kmem_intr_{alloc,free} as the destruction of rule procedure might happen in the interrupt handler (under a very rare condition, if config reload races with the handler). - npf_session_establish: check whether layer 3 and 4 are cached. - npfctl_build_group: do not make groups as passing rules. - Remove some unecessary header inclusion.
merge to -current.
- Split NPF rule procedure code into a separate module (no functional changes). - Simplify some code, add more comments, some asserts. - G/C unused rule hook code.
- Expire all sessions on flush. - Enable checking for zero mask in IP{4,6}MATCH after npfctl changes. - Make locking symmetric for npf_ruleset_inspect(). - Sync function prototypes in npf(3) man page with reality. - Rename NPF_TABLE_RBTREE to NPF_TABLE_TREE.
- Rework and improve TCP state tracking. - Fix regressions after IPv6 patch merge. Note: npfctl(8) rework will come soon.
sync with head
Few fixes, KNF/style, bump the NPF version.
When building the kernel without IPv6 support, compilation failed. Fix that.
Add IPv6 support for NPF.
Sync with HEAD.
sync with head
Sync with HEAD
file npf_handler.c was added on branch rmind-uvmplock on 2011-03-05 20:55:55 +0000
NPF checkpoint: - Add libnpf(3) - a library to control NPF (configuration, ruleset, etc). - Add NPF support for ftp-proxy(8). - Add rc.d script for NPF. - Convert npfctl(8) to use libnpf(3) and thus make it less depressive. Note: next clean-up step should be a parser, once dholland@ will finish it. - Add more documentation. - Various fixes.
NPF checkpoint: - Add the concept of rule procedure: separate normalization, logging and potentially other functions from the rule structure. Rule procedure can be shared amongst the rules. Separation is both at kernel level (npf_rproc_t) and configuration ("procedure" + "apply"). - Fix portmap sharing for NAT policy. - Update TCP state tracking logic. Use TCP FSM definitions. - Add if_byindex(), OK by matt@. Use in logging for the lookup. - Fix traceroute ALG and many other bugs; misc clean-up.
NPF checkpoint: - Add support for session saving/restoring. - Add packet logging support (can tcpdump a pseudo-interface). - Support reload without flushing of sessions; rework some locking. - Revisit session mangement, replace linking with npf_sentry_t entries. - Add some counters for statistics, using percpu(9). - Add IP_DF flag cleansing. - Fix various bugs; misc clean-up.
NPF checkpoint: - Add proper TCP state tracking as described in Guido van Rooij paper, plus handle TCP Window Scaling option. - Completely rework npf_cache_t, reduce granularity, simplify code. - Add npf_addr_t as an abstraction, amend session handling code, as well as NAT code et al, to use it. Now design is prepared for IPv6 support. - Handle IPv4 fragments i.e. perform packet reassembly. - Add support for IPv4 ID randomization and minimum TTL enforcement. - Add support for TCP MSS "clamping". - Random bits for IPv6. Various fixes and clean-up.
Sync with HEAD (-D20101022).
file npf_handler.c was added on branch uebayasi-xip on 2010-10-22 09:23:14 +0000
npf_packet_handler: clear M_CANFASTFWD flag, so inspection would work when fast forwarding is enabled (e.g. with GATEWAY kernel option). Thanks matt@ for the tip.
sync with head
file npf_handler.c was added on branch yamt-nfs-mp on 2010-10-09 03:32:37 +0000
NPF checkpoint: - Add support for bi-directional NAT and redirection / port forwarding. - Finish filtering on ICMP type/code and add filtering on TCP flags. - Add support for TCP reset (RST) or ICMP destination unreachable on block. - Fix a bunch of bugs; misc cleanup.
Import NPF - a packet filter. Some features: - Designed to be fully MP-safe and highly efficient. - Tables/IP sets (hash or red-black tree) for high performance lookups. - Stateful filtering and Network Address Port Translation (NAPT). Framework for application level gateways (ALGs). - Packet inspection engine called n-code processor - inspired by BPF - supporting generic RISC-like and specific CISC-like instructions for common patterns (e.g. IPv4 address matching). See npf_ncode(9) manual. - Convenient userland utility npfctl(8) with npf.conf(8). NOTE: This is not yet a fully capable alternative to PF or IPFilter. Further work (support for binat/rdr, return-rst/return-icmp, common ALGs, state saving/restoring, logging, etc) is in progress. Thanks a lot to Matt Thomas for various useful comments and code review. Aye by: board@