version 1.6, 2022/07/15 09:19:25
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version 1.18.2.1, 2022/08/26 13:33:43
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/************************************************************************* | /*- |
* (C) 2022 CloudSigma AG - Sofia/Bulgaria | * SPDX-License-Identifier: BSD-2-Clause-FreeBSD |
* by Michael Pounov <misho@elwix.org> | * |
**************************************************************************/ | * Copyright (c) 2022 Michael Pounov <misho@elwix.org>, CloudSigma AG |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
#include "fwsync.h" |
#include "fwsync.h" |
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static int |
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fwsync_add_state_4(const struct fws_proto *pkt) |
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{ |
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DTRACE(); |
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return 0; |
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} |
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static int |
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fwsync_add_state_6(const struct fws_proto *pkt) |
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{ |
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DTRACE(); |
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return 0; |
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} |
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int |
int |
fwsync_add_state(const struct fws_proto *pkt) |
fwsync_add_state(const struct fws_proto *pkt) |
{ |
{ |
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struct fws_sndpkt *p; |
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DTRACE(); |
DTRACE(); |
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if (pkt->fws_addrtype == 4) | if (!pkt || pkt->fws_addrtype == 1) |
fwsync_add_state_4(pkt); | return 0; /* skip ethernet packet */ |
else if (pkt->fws_addrtype == 6) | |
fwsync_add_state_6(pkt); | |
else | |
return EINVAL; | |
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p = malloc(sizeof(struct fws_sndpkt), M_FWSYNC, M_NOWAIT | M_ZERO); |
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if (!p) { |
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return ENOMEM; |
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} else |
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memcpy(&p->sp_proto, pkt, sizeof(struct fws_proto)); |
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mtx_lock(&fws_mtx_u); |
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TAILQ_INSERT_TAIL(&fwsync_updpkt, p, sp_next); |
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mtx_unlock(&fws_mtx_u); |
return 0; |
return 0; |
} |
} |
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int |
int |
fwsync_add_alias(const struct fws_proto *pkt) |
fwsync_add_alias(const struct fws_proto *pkt) |
{ |
{ |
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struct fws_sndpkt *p; |
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DTRACE(); |
DTRACE(); |
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if (!pkt || pkt->fws_addrtype == 1 || pkt->fws_addrtype == 6) |
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return 0; /* skip packet */ |
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p = malloc(sizeof(struct fws_sndpkt), M_FWSYNC, M_NOWAIT | M_ZERO); |
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if (!p) { |
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return ENOMEM; |
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} else |
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memcpy(&p->sp_proto, pkt, sizeof(struct fws_proto)); |
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mtx_lock(&fws_mtx_n); |
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TAILQ_INSERT_TAIL(&fwsync_natpkt, p, sp_next); |
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mtx_unlock(&fws_mtx_n); |
return 0; |
return 0; |
} |
} |
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Line 54 fwsync_sndpkt_handler(void *context, int pending)
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Line 82 fwsync_sndpkt_handler(void *context, int pending)
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DTRACE(); |
DTRACE(); |
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printf("pending=%d\n", pending); |
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do { |
do { |
mtx_lock(&fws_mtx_c); |
mtx_lock(&fws_mtx_c); |
pkt = TAILQ_FIRST(&fwsync_sndpkt); |
pkt = TAILQ_FIRST(&fwsync_sndpkt); |
Line 115 out:
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Line 141 out:
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} |
} |
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int |
int |
fwsync_state_handler(const void *arg) | fwsync_state_handler(const void *arg, const void *extdata) |
{ |
{ |
const struct ipfw_flow_id *pkt = arg; |
const struct ipfw_flow_id *pkt = arg; |
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const struct ipfw_dyn_hook_extdata *edata = extdata; |
struct fws_proto *spkt; |
struct fws_proto *spkt; |
struct fws_sndpkt *p; |
struct fws_sndpkt *p; |
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Line 137 fwsync_state_handler(const void *arg)
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Line 164 fwsync_state_handler(const void *arg)
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spkt->fws_version = FWS_PKTVER_STATE; |
spkt->fws_version = FWS_PKTVER_STATE; |
spkt->fws_fib = pkt->fib; |
spkt->fws_fib = pkt->fib; |
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spkt->fws_cmdtype = edata->cmdtype; |
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spkt->fws_kidx = edata->kidx; |
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spkt->fws_ruleid = edata->ruleid; |
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spkt->fws_rulenum = edata->rulenum; |
spkt->fws_proto = pkt->proto; |
spkt->fws_proto = pkt->proto; |
spkt->fws_addrtype = pkt->addr_type; |
spkt->fws_addrtype = pkt->addr_type; |
spkt->fws_sport = pkt->src_port; |
spkt->fws_sport = pkt->src_port; |
Line 161 fwsync_state_handler(const void *arg)
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Line 192 fwsync_state_handler(const void *arg)
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TAILQ_INSERT_TAIL(&fwsync_sndpkt, p, sp_next); |
TAILQ_INSERT_TAIL(&fwsync_sndpkt, p, sp_next); |
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fws_acct.states[0]++; |
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mtx_unlock(&fws_mtx_c); |
mtx_unlock(&fws_mtx_c); |
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taskqueue_enqueue(fws_tq, &fws_sndpkt_task); |
taskqueue_enqueue(fws_tq, &fws_sndpkt_task); |
Line 168 fwsync_state_handler(const void *arg)
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Line 201 fwsync_state_handler(const void *arg)
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} |
} |
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int |
int |
fwsync_alias_handler(const void *arg) | fwsync_alias_handler(const void *arg, const void *extdata) |
{ |
{ |
const struct alias_link *lnk = arg; |
const struct alias_link *lnk = arg; |
struct fws_proto *spkt; |
struct fws_proto *spkt; |
Line 202 fwsync_alias_handler(const void *arg)
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Line 235 fwsync_alias_handler(const void *arg)
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TAILQ_INSERT_TAIL(&fwsync_sndpkt, p, sp_next); |
TAILQ_INSERT_TAIL(&fwsync_sndpkt, p, sp_next); |
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fws_acct.aliases[0]++; |
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mtx_unlock(&fws_mtx_c); |
mtx_unlock(&fws_mtx_c); |
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taskqueue_enqueue(fws_tq, &fws_sndpkt_task); |
taskqueue_enqueue(fws_tq, &fws_sndpkt_task); |
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return 0; |
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} |
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int |
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fwsync_state_sync(const void *arg, const void *extdata) |
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{ |
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struct fws_sndpkt *pkt; |
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struct ipfw_flow_id fid; |
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struct ip_fw *rule; |
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int f_pos; |
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struct ip_fw_chain *chain = &V_layer3_chain; |
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DTRACE(); |
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mtx_lock(&fws_mtx_u); |
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pkt = TAILQ_FIRST(&fwsync_updpkt); |
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if (pkt) { |
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TAILQ_REMOVE(&fwsync_updpkt, pkt, sp_next); |
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fws_acct.states[1]++; |
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} |
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mtx_unlock(&fws_mtx_u); |
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if (!pkt) /* update queue is empty */ |
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return 0; |
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if (!(fws_cfg.cfg.on & CFG_SYNC_EDGE)) { |
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free(pkt, M_FWSYNC); |
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return EAGAIN; |
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} |
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memset(&fid, 0, sizeof fid); |
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fid.fib = pkt->sp_proto.fws_fib; |
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fid.proto = pkt->sp_proto.fws_proto; |
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fid.addr_type = pkt->sp_proto.fws_addrtype; |
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fid.src_port = pkt->sp_proto.fws_sport; |
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fid.dst_port = pkt->sp_proto.fws_dport; |
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switch (pkt->sp_proto.fws_addrtype) { |
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case 4: |
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fid.src_ip = pkt->sp_proto.fws_saddr.s_addr; |
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fid.dst_ip = pkt->sp_proto.fws_daddr.s_addr; |
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break; |
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case 6: |
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memcpy(&fid.src_ip6, &pkt->sp_proto.fws_saddr6, sizeof fid.src_ip6); |
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memcpy(&fid.dst_ip6, &pkt->sp_proto.fws_daddr6, sizeof fid.dst_ip6); |
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fid.flow_id6 = pkt->sp_proto.fws_scopeid; |
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break; |
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default: |
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free(pkt, M_FWSYNC); |
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return EINVAL; |
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} |
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f_pos = ipfw_find_rule(chain, pkt->sp_proto.fws_ruleid, pkt->sp_proto.fws_rulenum); |
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rule = chain->map[f_pos]; |
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ipfw_dyn_install_sync_state(&fid, rule, |
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pkt->sp_proto.fws_ruleid, pkt->sp_proto.fws_rulenum, |
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pkt->sp_proto.fws_kidx, pkt->sp_proto.fws_cmdtype); |
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free(pkt, M_FWSYNC); |
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return 0; |
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} |
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int |
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fwsync_alias_sync(const void *arg, const void *extdata) |
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{ |
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struct fws_sndpkt *pkt; |
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const struct cfg_nat *t = arg; |
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DTRACE(); |
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mtx_lock(&fws_mtx_n); |
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while ((pkt = TAILQ_FIRST(&fwsync_natpkt))) { |
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TAILQ_REMOVE(&fwsync_natpkt, pkt, sp_next); |
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fws_acct.aliases[1]++; |
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if (!(fws_cfg.cfg.on & CFG_SYNC_EDGE)) { |
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free(pkt, M_FWSYNC); |
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continue; |
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} |
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if (t) { |
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LIBALIAS_LOCK(t->lib); |
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AddLink(t->lib, pkt->sp_proto.fws_saddr, |
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pkt->sp_proto.fws_daddr, |
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pkt->sp_proto.fws_aaddr, |
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pkt->sp_proto.fws_sport, |
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pkt->sp_proto.fws_dport, |
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pkt->sp_proto.fws_aport, |
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pkt->sp_proto.fws_linktype | LINK_SYNC_MASK); |
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LIBALIAS_UNLOCK(t->lib); |
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} |
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free(pkt, M_FWSYNC); |
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} |
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mtx_unlock(&fws_mtx_n); |
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return 0; |
return 0; |
} |
} |