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- /*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - 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 COPYRIGHT HOLDERS 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
- * COPYRIGHT HOLDERS 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 <sys/cdefs.h>
- #include <sys/ioctl.h>
- #include <sys/nv.h>
- #include <sys/queue.h>
- #include <sys/types.h>
- #include <net/if.h>
- #include <net/pfvar.h>
- #include <netinet/in.h>
- #include <netpfil/pf/pf_nl.h>
- #include <netlink/netlink.h>
- #include <netlink/netlink_generic.h>
- #include <netlink/netlink_snl.h>
- #include <netlink/netlink_snl_generic.h>
- #include <netlink/netlink_snl_route.h>
- #include <assert.h>
- #include <err.h>
- #include <errno.h>
- #include <fcntl.h>
- #include <stdlib.h>
- #include <string.h>
- #include "libpfctl.h"
- struct pfctl_handle {
- int fd;
- struct snl_state ss;
- };
- const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = {
- "never",
- "always",
- "adaptive"
- };
- static int _pfctl_clear_states(int , const struct pfctl_kill *,
- unsigned int *, uint64_t);
- struct pfctl_handle *
- pfctl_open(const char *pf_device)
- {
- struct pfctl_handle *h;
- h = calloc(1, sizeof(struct pfctl_handle));
- h->fd = -1;
- h->fd = open(pf_device, O_RDWR);
- if (h->fd < 0)
- goto error;
- if (!snl_init(&h->ss, NETLINK_GENERIC))
- goto error;
- return (h);
- error:
- close(h->fd);
- snl_free(&h->ss);
- free(h);
- return (NULL);
- }
- void
- pfctl_close(struct pfctl_handle *h)
- {
- close(h->fd);
- snl_free(&h->ss);
- free(h);
- }
- int
- pfctl_fd(struct pfctl_handle *h)
- {
- return (h->fd);
- }
- static int
- pfctl_do_netlink_cmd(struct pfctl_handle *h, uint cmd)
- {
- struct snl_errmsg_data e = {};
- struct snl_writer nw;
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, cmd);
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL)
- return (ENOMEM);
- seq_id = hdr->nlmsg_seq;
- snl_send_message(&h->ss, hdr);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- static int
- pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl)
- {
- struct pfioc_nv nv;
- void *data;
- size_t nvlen;
- int ret;
- data = nvlist_pack(*nvl, &nvlen);
- if (nvlen > size)
- size = nvlen;
- retry:
- nv.data = malloc(size);
- if (nv.data == NULL) {
- ret = ENOMEM;
- goto out;
- }
- memcpy(nv.data, data, nvlen);
- nv.len = nvlen;
- nv.size = size;
- ret = ioctl(dev, cmd, &nv);
- if (ret == -1 && errno == ENOSPC) {
- size *= 2;
- free(nv.data);
- goto retry;
- }
- nvlist_destroy(*nvl);
- *nvl = NULL;
- if (ret == 0) {
- *nvl = nvlist_unpack(nv.data, nv.len, 0);
- if (*nvl == NULL) {
- ret = EIO;
- goto out;
- }
- } else {
- ret = errno;
- }
- out:
- free(data);
- free(nv.data);
- return (ret);
- }
- static void
- pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems,
- uint8_t *numbers, size_t *nelems)
- {
- const uint64_t *tmp;
- size_t elems;
- tmp = nvlist_get_number_array(nvl, name, &elems);
- assert(elems <= maxelems);
- for (size_t i = 0; i < elems; i++)
- numbers[i] = tmp[i];
- if (nelems)
- *nelems = elems;
- }
- static void
- pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems,
- uint16_t *numbers, size_t *nelems)
- {
- const uint64_t *tmp;
- size_t elems;
- tmp = nvlist_get_number_array(nvl, name, &elems);
- assert(elems <= maxelems);
- for (size_t i = 0; i < elems; i++)
- numbers[i] = tmp[i];
- if (nelems)
- *nelems = elems;
- }
- static void
- pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems,
- uint32_t *numbers, size_t *nelems)
- {
- const uint64_t *tmp;
- size_t elems;
- tmp = nvlist_get_number_array(nvl, name, &elems);
- for (size_t i = 0; i < elems && i < maxelems; i++)
- numbers[i] = tmp[i];
- if (nelems)
- *nelems = elems;
- }
- static void
- pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems,
- uint64_t *numbers, size_t *nelems)
- {
- const uint64_t *tmp;
- size_t elems;
- tmp = nvlist_get_number_array(nvl, name, &elems);
- assert(elems <= maxelems);
- for (size_t i = 0; i < elems; i++)
- numbers[i] = tmp[i];
- if (nelems)
- *nelems = elems;
- }
- int
- pfctl_startstop(struct pfctl_handle *h, int start)
- {
- return (pfctl_do_netlink_cmd(h, start ? PFNL_CMD_START : PFNL_CMD_STOP));
- }
- static void
- _pfctl_get_status_counters(const nvlist_t *nvl,
- struct pfctl_status_counters *counters)
- {
- const uint64_t *ids, *counts;
- const char *const *names;
- size_t id_len, counter_len, names_len;
- ids = nvlist_get_number_array(nvl, "ids", &id_len);
- counts = nvlist_get_number_array(nvl, "counters", &counter_len);
- names = nvlist_get_string_array(nvl, "names", &names_len);
- assert(id_len == counter_len);
- assert(counter_len == names_len);
- TAILQ_INIT(counters);
- for (size_t i = 0; i < id_len; i++) {
- struct pfctl_status_counter *c;
- c = malloc(sizeof(*c));
- if (c == NULL)
- continue;
- c->id = ids[i];
- c->counter = counts[i];
- c->name = strdup(names[i]);
- TAILQ_INSERT_TAIL(counters, c, entry);
- }
- }
- #define _OUT(_field) offsetof(struct pfctl_status_counter, _field)
- static const struct snl_attr_parser ap_counter[] = {
- { .type = PF_C_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_uint64 },
- { .type = PF_C_NAME, .off = _OUT(name), .cb = snl_attr_get_string },
- { .type = PF_C_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
- };
- SNL_DECLARE_ATTR_PARSER(counter_parser, ap_counter);
- #undef _OUT
- static bool
- snl_attr_get_counters(struct snl_state *ss, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- struct pfctl_status_counter counter = {};
- struct pfctl_status_counter *c;
- bool error;
- error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &counter_parser, &counter);
- if (! error)
- return (error);
- c = malloc(sizeof(*c));
- if (c == NULL)
- return (false);
- c->id = counter.id;
- c->counter = counter.counter;
- c->name = strdup(counter.name);
- TAILQ_INSERT_TAIL((struct pfctl_status_counters *)target, c, entry);
- return (error);
- }
- struct snl_uint64_array {
- uint64_t *array;
- size_t count;
- size_t max;
- };
- static bool
- snl_attr_get_uint64_element(struct snl_state *ss, struct nlattr *nla,
- const void *arg, void *target)
- {
- bool error;
- uint64_t value;
- struct snl_uint64_array *t = (struct snl_uint64_array *)target;
- if (t->count >= t->max)
- return (false);
- error = snl_attr_get_uint64(ss, nla, arg, &value);
- if (! error)
- return (error);
- t->array[t->count++] = value;
- return (true);
- }
- static const struct snl_attr_parser ap_array[] = {
- { .cb = snl_attr_get_uint64_element },
- };
- SNL_DECLARE_ATTR_PARSER(array_parser, ap_array);
- static bool
- snl_attr_get_uint64_array(struct snl_state *ss, struct nlattr *nla,
- const void *arg, void *target)
- {
- struct snl_uint64_array a = {
- .array = target,
- .count = 0,
- .max = (size_t)arg,
- };
- bool error;
- error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a);
- if (! error)
- return (error);
- return (true);
- }
- #define _OUT(_field) offsetof(struct pfctl_status, _field)
- static const struct snl_attr_parser ap_getstatus[] = {
- { .type = PF_GS_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string },
- { .type = PF_GS_RUNNING, .off = _OUT(running), .cb = snl_attr_get_bool },
- { .type = PF_GS_SINCE, .off = _OUT(since), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_DEBUG, .off = _OUT(debug), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_HOSTID, .off = _OUT(hostid), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_SRC_NODES, .off = _OUT(src_nodes), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_REASSEMBLE, .off = _OUT(reass), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_SYNCOOKIES_ACTIVE, .off = _OUT(syncookies_active), .cb = snl_attr_get_uint32 },
- { .type = PF_GS_COUNTERS, .off = _OUT(counters), .cb = snl_attr_get_counters },
- { .type = PF_GS_LCOUNTERS, .off = _OUT(lcounters), .cb = snl_attr_get_counters },
- { .type = PF_GS_FCOUNTERS, .off = _OUT(fcounters), .cb = snl_attr_get_counters },
- { .type = PF_GS_SCOUNTERS, .off = _OUT(scounters), .cb = snl_attr_get_counters },
- { .type = PF_GS_CHKSUM, .off = _OUT(pf_chksum), .arg_u32 = PF_MD5_DIGEST_LENGTH, .cb = snl_attr_get_bytes },
- { .type = PF_GS_BCOUNTERS, .off = _OUT(bcounters), .arg_u32 = 2 * 2, .cb = snl_attr_get_uint64_array },
- { .type = PF_GS_PCOUNTERS, .off = _OUT(pcounters), .arg_u32 = 2 * 2 * 2, .cb = snl_attr_get_uint64_array },
- };
- static struct snl_field_parser fp_getstatus[] = {};
- SNL_DECLARE_PARSER(getstatus_parser, struct genlmsghdr, fp_getstatus, ap_getstatus);
- #undef _OUT
- struct pfctl_status *
- pfctl_get_status_h(struct pfctl_handle *h __unused)
- {
- struct pfctl_status *status;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- struct snl_writer nw;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (NULL);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_STATUS);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL) {
- return (NULL);
- }
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (NULL);
- status = calloc(1, sizeof(*status));
- if (status == NULL)
- return (NULL);
- TAILQ_INIT(&status->counters);
- TAILQ_INIT(&status->lcounters);
- TAILQ_INIT(&status->fcounters);
- TAILQ_INIT(&status->scounters);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &getstatus_parser, status))
- continue;
- }
- return (status);
- }
- struct pfctl_status *
- pfctl_get_status(int dev)
- {
- struct pfctl_status *status;
- nvlist_t *nvl;
- size_t len;
- const void *chksum;
- status = calloc(1, sizeof(*status));
- if (status == NULL)
- return (NULL);
- nvl = nvlist_create(0);
- if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) {
- nvlist_destroy(nvl);
- free(status);
- return (NULL);
- }
- status->running = nvlist_get_bool(nvl, "running");
- status->since = nvlist_get_number(nvl, "since");
- status->debug = nvlist_get_number(nvl, "debug");
- status->hostid = ntohl(nvlist_get_number(nvl, "hostid"));
- status->states = nvlist_get_number(nvl, "states");
- status->src_nodes = nvlist_get_number(nvl, "src_nodes");
- status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active");
- status->reass = nvlist_get_number(nvl, "reass");
- strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"),
- IFNAMSIZ);
- chksum = nvlist_get_binary(nvl, "chksum", &len);
- assert(len == PF_MD5_DIGEST_LENGTH);
- memcpy(status->pf_chksum, chksum, len);
- _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"),
- &status->counters);
- _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"),
- &status->lcounters);
- _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"),
- &status->fcounters);
- _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"),
- &status->scounters);
- pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 2,
- (uint64_t *)status->pcounters, NULL);
- pf_nvuint_64_array(nvl, "bcounters", 2 * 2,
- (uint64_t *)status->bcounters, NULL);
- nvlist_destroy(nvl);
- return (status);
- }
- int
- pfctl_clear_status(struct pfctl_handle *h)
- {
- return (pfctl_do_netlink_cmd(h, PFNL_CMD_CLEAR_STATUS));
- }
- static uint64_t
- _pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id)
- {
- struct pfctl_status_counter *c;
- TAILQ_FOREACH(c, counters, entry) {
- if (c->id == id)
- return (c->counter);
- }
- return (0);
- }
- uint64_t
- pfctl_status_counter(struct pfctl_status *status, int id)
- {
- return (_pfctl_status_counter(&status->counters, id));
- }
- uint64_t
- pfctl_status_lcounter(struct pfctl_status *status, int id)
- {
- return (_pfctl_status_counter(&status->lcounters, id));
- }
- uint64_t
- pfctl_status_fcounter(struct pfctl_status *status, int id)
- {
- return (_pfctl_status_counter(&status->fcounters, id));
- }
- uint64_t
- pfctl_status_scounter(struct pfctl_status *status, int id)
- {
- return (_pfctl_status_counter(&status->scounters, id));
- }
- void
- pfctl_free_status(struct pfctl_status *status)
- {
- struct pfctl_status_counter *c, *tmp;
- if (status == NULL)
- return;
- TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) {
- free(c->name);
- free(c);
- }
- TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) {
- free(c->name);
- free(c);
- }
- TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) {
- free(c->name);
- free(c);
- }
- TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) {
- free(c->name);
- free(c);
- }
- free(status);
- }
- static void
- pfctl_nv_add_addr(nvlist_t *nvparent, const char *name,
- const struct pf_addr *addr)
- {
- nvlist_t *nvl = nvlist_create(0);
- nvlist_add_binary(nvl, "addr", addr, sizeof(*addr));
- nvlist_add_nvlist(nvparent, name, nvl);
- nvlist_destroy(nvl);
- }
- static void
- pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr)
- {
- size_t len;
- const void *data;
- data = nvlist_get_binary(nvl, "addr", &len);
- assert(len == sizeof(struct pf_addr));
- memcpy(addr, data, len);
- }
- static void
- pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name,
- const struct pf_addr_wrap *addr)
- {
- nvlist_t *nvl = nvlist_create(0);
- nvlist_add_number(nvl, "type", addr->type);
- nvlist_add_number(nvl, "iflags", addr->iflags);
- if (addr->type == PF_ADDR_DYNIFTL)
- nvlist_add_string(nvl, "ifname", addr->v.ifname);
- if (addr->type == PF_ADDR_TABLE)
- nvlist_add_string(nvl, "tblname", addr->v.tblname);
- pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr);
- pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask);
- nvlist_add_nvlist(nvparent, name, nvl);
- nvlist_destroy(nvl);
- }
- static void
- pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr)
- {
- bzero(addr, sizeof(*addr));
- addr->type = nvlist_get_number(nvl, "type");
- addr->iflags = nvlist_get_number(nvl, "iflags");
- if (addr->type == PF_ADDR_DYNIFTL) {
- strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"),
- IFNAMSIZ);
- addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt");
- }
- if (addr->type == PF_ADDR_TABLE) {
- strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"),
- PF_TABLE_NAME_SIZE);
- addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt");
- }
- pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr);
- pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask);
- }
- static void
- pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name,
- const struct pf_rule_addr *addr)
- {
- uint64_t ports[2];
- nvlist_t *nvl = nvlist_create(0);
- pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr);
- ports[0] = addr->port[0];
- ports[1] = addr->port[1];
- nvlist_add_number_array(nvl, "port", ports, 2);
- nvlist_add_number(nvl, "neg", addr->neg);
- nvlist_add_number(nvl, "port_op", addr->port_op);
- nvlist_add_nvlist(nvparent, name, nvl);
- nvlist_destroy(nvl);
- }
- static void
- pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr)
- {
- pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr);
- pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL);
- addr->neg = nvlist_get_number(nvl, "neg");
- addr->port_op = nvlist_get_number(nvl, "port_op");
- }
- static void
- pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape)
- {
- mape->offset = nvlist_get_number(nvl, "offset");
- mape->psidlen = nvlist_get_number(nvl, "psidlen");
- mape->psid = nvlist_get_number(nvl, "psid");
- }
- static void
- pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool)
- {
- size_t len;
- const void *data;
- data = nvlist_get_binary(nvl, "key", &len);
- assert(len == sizeof(pool->key));
- memcpy(&pool->key, data, len);
- pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter);
- pool->tblidx = nvlist_get_number(nvl, "tblidx");
- pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL);
- pool->opts = nvlist_get_number(nvl, "opts");
- if (nvlist_exists_nvlist(nvl, "mape"))
- pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape);
- }
- static void
- pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid)
- {
- pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL);
- uid->op = nvlist_get_number(nvl, "op");
- }
- static void
- pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule)
- {
- pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr);
- rule->divert.port = nvlist_get_number(nvl, "port");
- }
- static void
- pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule)
- {
- const uint64_t *skip;
- const char *const *labels;
- size_t skipcount, labelcount;
- rule->nr = nvlist_get_number(nvl, "nr");
- pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src);
- pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst);
- skip = nvlist_get_number_array(nvl, "skip", &skipcount);
- assert(skip);
- assert(skipcount == PF_SKIP_COUNT);
- for (int i = 0; i < PF_SKIP_COUNT; i++)
- rule->skip[i].nr = skip[i];
- labels = nvlist_get_string_array(nvl, "labels", &labelcount);
- assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
- for (size_t i = 0; i < labelcount; i++)
- strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
- rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
- strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
- strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
- strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE);
- strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
- PF_TAG_NAME_SIZE);
- strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
- PF_TAG_NAME_SIZE);
- strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"),
- PF_TABLE_NAME_SIZE);
- pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool);
- rule->evaluations = nvlist_get_number(nvl, "evaluations");
- pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL);
- pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL);
- if (nvlist_exists_number(nvl, "timestamp")) {
- rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
- }
- rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint");
- rule->rtableid = nvlist_get_number(nvl, "rtableid");
- pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL);
- rule->max_states = nvlist_get_number(nvl, "max_states");
- rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes");
- rule->max_src_states = nvlist_get_number(nvl, "max_src_states");
- rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn");
- rule->max_src_conn_rate.limit =
- nvlist_get_number(nvl, "max_src_conn_rate.limit");
- rule->max_src_conn_rate.seconds =
- nvlist_get_number(nvl, "max_src_conn_rate.seconds");
- rule->qid = nvlist_get_number(nvl, "qid");
- rule->pqid = nvlist_get_number(nvl, "pqid");
- rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
- rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe");
- rule->free_flags = nvlist_get_number(nvl, "dnflags");
- rule->prob = nvlist_get_number(nvl, "prob");
- rule->cuid = nvlist_get_number(nvl, "cuid");
- rule->cpid = nvlist_get_number(nvl, "cpid");
- rule->return_icmp = nvlist_get_number(nvl, "return_icmp");
- rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6");
- rule->max_mss = nvlist_get_number(nvl, "max_mss");
- rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags");
- pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid);
- pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"),
- (struct pf_rule_uid *)&rule->gid);
- rule->rule_flag = nvlist_get_number(nvl, "rule_flag");
- rule->action = nvlist_get_number(nvl, "action");
- rule->direction = nvlist_get_number(nvl, "direction");
- rule->log = nvlist_get_number(nvl, "log");
- rule->logif = nvlist_get_number(nvl, "logif");
- rule->quick = nvlist_get_number(nvl, "quick");
- rule->ifnot = nvlist_get_number(nvl, "ifnot");
- rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not");
- rule->natpass = nvlist_get_number(nvl, "natpass");
- rule->keep_state = nvlist_get_number(nvl, "keep_state");
- rule->af = nvlist_get_number(nvl, "af");
- rule->proto = nvlist_get_number(nvl, "proto");
- rule->type = nvlist_get_number(nvl, "type");
- rule->code = nvlist_get_number(nvl, "code");
- rule->flags = nvlist_get_number(nvl, "flags");
- rule->flagset = nvlist_get_number(nvl, "flagset");
- rule->min_ttl = nvlist_get_number(nvl, "min_ttl");
- rule->allow_opts = nvlist_get_number(nvl, "allow_opts");
- rule->rt = nvlist_get_number(nvl, "rt");
- rule->return_ttl = nvlist_get_number(nvl, "return_ttl");
- rule->tos = nvlist_get_number(nvl, "tos");
- rule->set_tos = nvlist_get_number(nvl, "set_tos");
- rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
- rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
- rule->flush = nvlist_get_number(nvl, "flush");
- rule->prio = nvlist_get_number(nvl, "prio");
- pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL);
- pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule);
- rule->states_cur = nvlist_get_number(nvl, "states_cur");
- rule->states_tot = nvlist_get_number(nvl, "states_tot");
- rule->src_nodes = nvlist_get_number(nvl, "src_nodes");
- }
- static void
- pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr)
- {
- static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 };
- size_t len;
- const void *data;
- data = nvlist_get_binary(nvl, "addr", &len);
- assert(len == sizeof(addr->addr));
- memcpy(addr->addr, data, sizeof(addr->addr));
- data = nvlist_get_binary(nvl, "mask", &len);
- assert(len == sizeof(addr->mask));
- memcpy(addr->mask, data, sizeof(addr->mask));
- addr->neg = nvlist_get_bool(nvl, "neg");
- /* To make checks for 'is this address set?' easier. */
- addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0;
- }
- static nvlist_t *
- pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr)
- {
- nvlist_t *nvl;
- nvl = nvlist_create(0);
- if (nvl == NULL)
- return (NULL);
- nvlist_add_bool(nvl, "neg", addr->neg);
- nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN);
- nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN);
- return (nvl);
- }
- static void
- pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule)
- {
- const char *const *labels;
- size_t labelcount, i;
- rule->nr = nvlist_get_number(nvl, "nr");
- rule->quick = nvlist_get_bool(nvl, "quick");
- strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
- rule->ifnot = nvlist_get_bool(nvl, "ifnot");
- rule->direction = nvlist_get_number(nvl, "direction");
- rule->proto = nvlist_get_number(nvl, "proto");
- strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
- PF_TAG_NAME_SIZE);
- rule->match_tag = nvlist_get_number(nvl, "match_tag");
- rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not");
- labels = nvlist_get_string_array(nvl, "labels", &labelcount);
- assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
- for (i = 0; i < labelcount; i++)
- strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
- rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
- pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"),
- &rule->src);
- pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"),
- &rule->dst);
- pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"),
- &rule->ipsrc);
- pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"),
- &rule->ipdst);
- rule->evaluations = nvlist_get_number(nvl, "evaluations");
- rule->packets[0] = nvlist_get_number(nvl, "packets-in");
- rule->packets[1] = nvlist_get_number(nvl, "packets-out");
- rule->bytes[0] = nvlist_get_number(nvl, "bytes-in");
- rule->bytes[1] = nvlist_get_number(nvl, "bytes-out");
- if (nvlist_exists_number(nvl, "timestamp")) {
- rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp");
- }
- strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
- strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
- PF_TAG_NAME_SIZE);
- rule->dnpipe = nvlist_get_number(nvl, "dnpipe");
- rule->dnflags = nvlist_get_number(nvl, "dnflags");
- rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
- rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
- strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"),
- IFNAMSIZ);
- rule->action = nvlist_get_number(nvl, "action");
- }
- int
- pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri,
- const char *path)
- {
- nvlist_t *nvl;
- int ret;
- bzero(ri, sizeof(*ri));
- nvl = nvlist_create(0);
- nvlist_add_string(nvl, "path", path);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0)
- goto out;
- ri->nr = nvlist_get_number(nvl, "nr");
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_get_eth_ruleset(int dev, const char *path, int nr,
- struct pfctl_eth_ruleset_info *ri)
- {
- nvlist_t *nvl;
- int ret;
- bzero(ri, sizeof(*ri));
- nvl = nvlist_create(0);
- nvlist_add_string(nvl, "path", path);
- nvlist_add_number(nvl, "nr", nr);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0)
- goto out;
- ri->nr = nvlist_get_number(nvl, "nr");
- strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN);
- strlcpy(ri->name, nvlist_get_string(nvl, "name"),
- PF_ANCHOR_NAME_SIZE);
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules,
- const char *path)
- {
- nvlist_t *nvl;
- int ret;
- bzero(rules, sizeof(*rules));
- nvl = nvlist_create(0);
- nvlist_add_string(nvl, "anchor", path);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0)
- goto out;
- rules->nr = nvlist_get_number(nvl, "nr");
- rules->ticket = nvlist_get_number(nvl, "ticket");
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket,
- const char *path, struct pfctl_eth_rule *rule, bool clear,
- char *anchor_call)
- {
- nvlist_t *nvl;
- int ret;
- nvl = nvlist_create(0);
- nvlist_add_string(nvl, "anchor", path);
- nvlist_add_number(nvl, "ticket", ticket);
- nvlist_add_number(nvl, "nr", nr);
- nvlist_add_bool(nvl, "clear", clear);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0)
- goto out;
- pfctl_nveth_rule_to_eth_rule(nvl, rule);
- if (anchor_call)
- strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
- MAXPATHLEN);
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor,
- const char *anchor_call, uint32_t ticket)
- {
- struct pfioc_nv nv;
- nvlist_t *nvl, *addr;
- void *packed;
- int error = 0;
- size_t labelcount, size;
- nvl = nvlist_create(0);
- nvlist_add_number(nvl, "ticket", ticket);
- nvlist_add_string(nvl, "anchor", anchor);
- nvlist_add_string(nvl, "anchor_call", anchor_call);
- nvlist_add_number(nvl, "nr", r->nr);
- nvlist_add_bool(nvl, "quick", r->quick);
- nvlist_add_string(nvl, "ifname", r->ifname);
- nvlist_add_bool(nvl, "ifnot", r->ifnot);
- nvlist_add_number(nvl, "direction", r->direction);
- nvlist_add_number(nvl, "proto", r->proto);
- nvlist_add_string(nvl, "match_tagname", r->match_tagname);
- nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not);
- addr = pfctl_eth_addr_to_nveth_addr(&r->src);
- if (addr == NULL) {
- nvlist_destroy(nvl);
- return (ENOMEM);
- }
- nvlist_add_nvlist(nvl, "src", addr);
- nvlist_destroy(addr);
- addr = pfctl_eth_addr_to_nveth_addr(&r->dst);
- if (addr == NULL) {
- nvlist_destroy(nvl);
- return (ENOMEM);
- }
- nvlist_add_nvlist(nvl, "dst", addr);
- nvlist_destroy(addr);
- pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc);
- pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst);
- labelcount = 0;
- while (labelcount < PF_RULE_MAX_LABEL_COUNT &&
- r->label[labelcount][0] != 0) {
- nvlist_append_string_array(nvl, "labels",
- r->label[labelcount]);
- labelcount++;
- }
- nvlist_add_number(nvl, "ridentifier", r->ridentifier);
- nvlist_add_string(nvl, "qname", r->qname);
- nvlist_add_string(nvl, "tagname", r->tagname);
- nvlist_add_number(nvl, "dnpipe", r->dnpipe);
- nvlist_add_number(nvl, "dnflags", r->dnflags);
- nvlist_add_string(nvl, "bridge_to", r->bridge_to);
- nvlist_add_number(nvl, "action", r->action);
- packed = nvlist_pack(nvl, &size);
- if (packed == NULL) {
- nvlist_destroy(nvl);
- return (ENOMEM);
- }
- nv.len = size;
- nv.size = size;
- nv.data = packed;
- if (ioctl(dev, DIOCADDETHRULE, &nv) != 0)
- error = errno;
- free(packed);
- nvlist_destroy(nvl);
- return (error);
- }
- static void
- snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6);
- snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6);
- if (addr->type == PF_ADDR_DYNIFTL)
- snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname);
- if (addr->type == PF_ADDR_TABLE)
- snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname);
- snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type);
- snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_pool_addr(struct snl_writer *nw, uint32_t type, const struct pf_pooladdr *pa)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_string(nw, PF_PA_IFNAME, pa->ifname);
- snl_add_msg_attr_addr_wrap(nw, PF_PA_ADDR, &pa->addr);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr);
- snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]);
- snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]);
- snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg);
- snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE])
- {
- int off, i = 0;
- off = snl_add_msg_attr_nested(nw, type);
- while (i < PF_RULE_MAX_LABEL_COUNT &&
- labels[i][0] != 0) {
- snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]);
- i++;
- }
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset);
- snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen);
- snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key);
- snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6);
- snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx);
- snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]);
- snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]);
- snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts);
- snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- for (int i = 0; i < PFTM_MAX; i++)
- snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]);
- snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]);
- snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op);
- snl_end_attr_nested(nw, off);
- }
- static void
- snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r)
- {
- int off;
- off = snl_add_msg_attr_nested(nw, type);
- snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src);
- snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst);
- snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label);
- snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier);
- snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname);
- snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname);
- snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname);
- snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname);
- snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname);
- snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname);
- snl_add_msg_attr_rpool(nw, PF_RT_RPOOL, &r->rpool);
- snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint);
- snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid);
- snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout);
- snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states);
- snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes);
- snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states);
- snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit);
- snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds);
- snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe);
- snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe);
- snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags);
- snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr);
- snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob);
- snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid);
- snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid);
- snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp);
- snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6);
- snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss);
- snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags);
- snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid);
- snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid);
- snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag);
- snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action);
- snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction);
- snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log);
- snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif);
- snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick);
- snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot);
- snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not);
- snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass);
- snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state);
- snl_add_msg_attr_u8(nw, PF_RT_AF, r->af);
- snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto);
- snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type);
- snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code);
- snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags);
- snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset);
- snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl);
- snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts);
- snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt);
- snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl);
- snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos);
- snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos);
- snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative);
- snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard);
- snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush);
- snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio);
- snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]);
- snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]);
- snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6);
- snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port);
- snl_end_attr_nested(nw, off);
- }
- int
- pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor,
- const char *anchor_call, uint32_t ticket, uint32_t pool_ticket)
- {
- struct pfctl_handle *h;
- int ret;
- h = pfctl_open(PF_DEVICE);
- if (h == NULL)
- return (ENODEV);
- ret = pfctl_add_rule_h(h, r, anchor, anchor_call, ticket, pool_ticket);
- pfctl_close(h);
- return (ret);
- }
- int
- pfctl_add_rule_h(struct pfctl_handle *h, const struct pfctl_rule *r,
- const char *anchor, const char *anchor_call, uint32_t ticket,
- uint32_t pool_ticket)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket);
- snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket);
- snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor);
- snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call);
- snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- #define _IN(_field) offsetof(struct genlmsghdr, _field)
- #define _OUT(_field) offsetof(struct pfctl_rules_info, _field)
- static struct snl_attr_parser ap_getrules[] = {
- { .type = PF_GR_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 },
- { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_getrules[] = {
- };
- #undef _IN
- #undef _OUT
- SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, fp_getrules, ap_getrules);
- int
- pfctl_get_rules_info_h(struct pfctl_handle *h, struct pfctl_rules_info *rules, uint32_t ruleset,
- const char *path)
- {
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- struct snl_writer nw;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULES);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, path);
- snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset);
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL)
- return (ENOMEM);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &getrules_parser, rules))
- continue;
- }
- return (e.error);
- }
- int
- pfctl_get_rules_info(int dev __unused, struct pfctl_rules_info *rules, uint32_t ruleset,
- const char *path)
- {
- struct pfctl_handle *h;
- int error;
- h = pfctl_open(PF_DEVICE);
- if (h == NULL)
- return (ENOTSUP);
- error = pfctl_get_rules_info_h(h, rules, ruleset, path);
- pfctl_close(h);
- return (error);
- }
- int
- pfctl_get_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, const char *anchor,
- uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call)
- {
- return (pfctl_get_clear_rule_h(h, nr, ticket, anchor, ruleset, rule,
- anchor_call, false));
- }
- int
- pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor,
- uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call)
- {
- return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule,
- anchor_call, false));
- }
- #define _OUT(_field) offsetof(struct pf_addr_wrap, _field)
- static const struct snl_attr_parser ap_addr_wrap[] = {
- { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = snl_attr_get_in6_addr },
- { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = snl_attr_get_in6_addr },
- { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = snl_attr_copy_string },
- { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_AT_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 },
- { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = snl_attr_get_uint8 },
- { .type = PF_AT_TBLCNT, .off = _OUT(p.tblcnt), .cb = snl_attr_get_uint32 },
- { .type = PF_AT_DYNCNT, .off = _OUT(p.dyncnt), .cb = snl_attr_get_uint32 },
- };
- SNL_DECLARE_ATTR_PARSER(addr_wrap_parser, ap_addr_wrap);
- #undef _OUT
- #define _OUT(_field) offsetof(struct pf_rule_addr, _field)
- static struct snl_attr_parser ap_rule_addr[] = {
- { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested },
- { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 },
- { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 },
- { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = snl_attr_get_uint8 },
- { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = snl_attr_get_uint8 },
- };
- #undef _OUT
- SNL_DECLARE_ATTR_PARSER(rule_addr_parser, ap_rule_addr);
- struct snl_parsed_labels
- {
- char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE];
- uint32_t i;
- };
- static bool
- snl_attr_get_pf_rule_labels(struct snl_state *ss, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- struct snl_parsed_labels *l = (struct snl_parsed_labels *)target;
- bool ret;
- if (l->i >= PF_RULE_MAX_LABEL_COUNT)
- return (E2BIG);
- ret = snl_attr_copy_string(ss, nla, (void *)PF_RULE_LABEL_SIZE,
- l->labels[l->i]);
- if (ret)
- l->i++;
- return (ret);
- }
- #define _OUT(_field) offsetof(struct nl_parsed_labels, _field)
- static const struct snl_attr_parser ap_labels[] = {
- { .type = PF_LT_LABEL, .off = 0, .cb = snl_attr_get_pf_rule_labels },
- };
- SNL_DECLARE_ATTR_PARSER(rule_labels_parser, ap_labels);
- #undef _OUT
- static bool
- snl_attr_get_nested_pf_rule_labels(struct snl_state *ss, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- struct snl_parsed_labels parsed_labels = { };
- bool error;
- /* Assumes target points to the beginning of the structure */
- error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, &parsed_labels);
- if (! error)
- return (error);
- memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels));
- return (true);
- }
- #define _OUT(_field) offsetof(struct pf_mape_portset, _field)
- static const struct snl_attr_parser ap_mape_portset[] = {
- { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = snl_attr_get_uint8 },
- { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = snl_attr_get_uint8 },
- {. type = PF_MET_PSID, .off = _OUT(psid), .cb = snl_attr_get_uint16 },
- };
- SNL_DECLARE_ATTR_PARSER(mape_portset_parser, ap_mape_portset);
- #undef _OUT
- #define _OUT(_field) offsetof(struct pfctl_pool, _field)
- static const struct snl_attr_parser ap_pool[] = {
- { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = snl_attr_get_bytes },
- { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_in6_addr },
- { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = snl_attr_get_uint32 },
- { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = snl_attr_get_uint16 },
- { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = snl_attr_get_uint16 },
- { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = snl_attr_get_uint8 },
- { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = snl_attr_get_nested },
- };
- SNL_DECLARE_ATTR_PARSER(pool_parser, ap_pool);
- #undef _OUT
- struct nl_parsed_timeouts
- {
- uint32_t timeouts[PFTM_MAX];
- uint32_t i;
- };
- static bool
- snl_attr_get_pf_timeout(struct snl_state *ss, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target;
- bool ret;
- if (t->i >= PFTM_MAX)
- return (E2BIG);
- ret = snl_attr_get_uint32(ss, nla, NULL, &t->timeouts[t->i]);
- if (ret)
- t->i++;
- return (ret);
- }
- #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field)
- static const struct snl_attr_parser ap_timeouts[] = {
- { .type = PF_TT_TIMEOUT, .off = 0, .cb = snl_attr_get_pf_timeout },
- };
- SNL_DECLARE_ATTR_PARSER(timeout_parser, ap_timeouts);
- #undef _OUT
- static bool
- snl_attr_get_nested_timeouts(struct snl_state *ss, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- struct nl_parsed_timeouts parsed_timeouts = { };
- bool error;
- /* Assumes target points to the beginning of the structure */
- error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, &parsed_timeouts);
- if (! error)
- return (error);
- memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts));
- return (true);
- }
- #define _OUT(_field) offsetof(struct pf_rule_uid, _field)
- static const struct snl_attr_parser ap_rule_uid[] = {
- { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = snl_attr_get_uint32 },
- { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = snl_attr_get_uint32 },
- { .type = PF_RUT_OP, .off = _OUT(op), .cb = snl_attr_get_uint8 },
- };
- SNL_DECLARE_ATTR_PARSER(rule_uid_parser, ap_rule_uid);
- #undef _OUT
- struct pfctl_nl_get_rule {
- struct pfctl_rule r;
- char anchor_call[MAXPATHLEN];
- };
- #define _OUT(_field) offsetof(struct pfctl_nl_get_rule, _field)
- static struct snl_attr_parser ap_getrule[] = {
- { .type = PF_RT_SRC, .off = _OUT(r.src), .arg = &rule_addr_parser,.cb = snl_attr_get_nested },
- { .type = PF_RT_DST, .off = _OUT(r.dst), .arg = &rule_addr_parser,.cb = snl_attr_get_nested },
- { .type = PF_RT_RIDENTIFIER, .off = _OUT(r.ridentifier), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_LABELS, .off = _OUT(r.label), .arg = &rule_labels_parser,.cb = snl_attr_get_nested_pf_rule_labels },
- { .type = PF_RT_IFNAME, .off = _OUT(r.ifname), .arg = (void *)IFNAMSIZ, .cb = snl_attr_copy_string },
- { .type = PF_RT_QNAME, .off = _OUT(r.qname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_RT_PQNAME, .off = _OUT(r.pqname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_RT_TAGNAME, .off = _OUT(r.tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(r.match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(r.overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string },
- { .type = PF_RT_RPOOL, .off = _OUT(r.rpool), .arg = &pool_parser, .cb = snl_attr_get_nested },
- { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(r.os_fingerprint), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_RTABLEID, .off = _OUT(r.rtableid), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_TIMEOUT, .off = _OUT(r.timeout), .arg = &timeout_parser, .cb = snl_attr_get_nested_timeouts },
- { .type = PF_RT_MAX_STATES, .off = _OUT(r.max_states), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(r.max_src_nodes), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(r.max_src_states), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(r.max_src_conn_rate.limit), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(r.max_src_conn_rate.seconds), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_DNPIPE, .off = _OUT(r.dnpipe), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_DNRPIPE, .off = _OUT(r.dnrpipe), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_DNFLAGS, .off = _OUT(r.free_flags), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_NR, .off = _OUT(r.nr), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_PROB, .off = _OUT(r.prob), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_CUID, .off = _OUT(r.cuid), .cb = snl_attr_get_uint32 },
- {. type = PF_RT_CPID, .off = _OUT(r.cpid), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_RETURN_ICMP, .off = _OUT(r.return_icmp), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_RETURN_ICMP6, .off = _OUT(r.return_icmp6), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_MAX_MSS, .off = _OUT(r.max_mss), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(r.scrub_flags), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_UID, .off = _OUT(r.uid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested },
- { .type = PF_RT_GID, .off = _OUT(r.gid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested },
- { .type = PF_RT_RULE_FLAG, .off = _OUT(r.rule_flag), .cb = snl_attr_get_uint32 },
- { .type = PF_RT_ACTION, .off = _OUT(r.action), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_DIRECTION, .off = _OUT(r.direction), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_LOG, .off = _OUT(r.log), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_LOGIF, .off = _OUT(r.logif), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_QUICK, .off = _OUT(r.quick), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_IF_NOT, .off = _OUT(r.ifnot), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(r.match_tag_not), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_NATPASS, .off = _OUT(r.natpass), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_KEEP_STATE, .off = _OUT(r.keep_state), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_AF, .off = _OUT(r.af), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_PROTO, .off = _OUT(r.proto), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_TYPE, .off = _OUT(r.type), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_CODE, .off = _OUT(r.code), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_FLAGS, .off = _OUT(r.flags), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_FLAGSET, .off = _OUT(r.flagset), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_MIN_TTL, .off = _OUT(r.min_ttl), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_ALLOW_OPTS, .off = _OUT(r.allow_opts), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_RT, .off = _OUT(r.rt), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_RETURN_TTL, .off = _OUT(r.return_ttl), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_TOS, .off = _OUT(r.tos), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_SET_TOS, .off = _OUT(r.set_tos), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(r.anchor_relative), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(r.anchor_wildcard), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_FLUSH, .off = _OUT(r.flush), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_PRIO, .off = _OUT(r.prio), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_SET_PRIO, .off = _OUT(r.set_prio[0]), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(r.set_prio[1]), .cb = snl_attr_get_uint8 },
- { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(r.divert.addr), .cb = snl_attr_get_in6_addr },
- { .type = PF_RT_DIVERT_PORT, .off = _OUT(r.divert.port), .cb = snl_attr_get_uint16 },
- { .type = PF_RT_PACKETS_IN, .off = _OUT(r.packets[0]), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_PACKETS_OUT, .off = _OUT(r.packets[1]), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_BYTES_IN, .off = _OUT(r.bytes[0]), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_BYTES_OUT, .off = _OUT(r.bytes[1]), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_EVALUATIONS, .off = _OUT(r.evaluations), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_TIMESTAMP, .off = _OUT(r.last_active_timestamp), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_STATES_CUR, .off = _OUT(r.states_cur), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_STATES_TOTAL, .off = _OUT(r.states_tot), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_SRC_NODES, .off = _OUT(r.src_nodes), .cb = snl_attr_get_uint64 },
- { .type = PF_RT_ANCHOR_CALL, .off = _OUT(anchor_call), .arg = (void*)MAXPATHLEN, .cb = snl_attr_copy_string },
- };
- static struct snl_field_parser fp_getrule[] = {};
- #undef _OUT
- SNL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, fp_getrule, ap_getrule);
- int
- pfctl_get_clear_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket,
- const char *anchor, uint32_t ruleset, struct pfctl_rule *rule,
- char *anchor_call, bool clear)
- {
- struct pfctl_nl_get_rule attrs = {};
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- struct snl_writer nw;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULE);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, anchor);
- snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset);
- snl_add_msg_attr_u32(&nw, PF_GR_NR, nr);
- snl_add_msg_attr_u32(&nw, PF_GR_TICKET, ticket);
- snl_add_msg_attr_u8(&nw, PF_GR_CLEAR, clear);
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL)
- return (ENOMEM);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &getrule_parser, &attrs))
- continue;
- }
- memcpy(rule, &attrs.r, sizeof(attrs.r));
- strlcpy(anchor_call, attrs.anchor_call, MAXPATHLEN);
- return (e.error);
- }
- int
- pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket,
- const char *anchor, uint32_t ruleset, struct pfctl_rule *rule,
- char *anchor_call, bool clear)
- {
- nvlist_t *nvl;
- int ret;
- nvl = nvlist_create(0);
- if (nvl == 0)
- return (ENOMEM);
- nvlist_add_number(nvl, "nr", nr);
- nvlist_add_number(nvl, "ticket", ticket);
- nvlist_add_string(nvl, "anchor", anchor);
- nvlist_add_number(nvl, "ruleset", ruleset);
- if (clear)
- nvlist_add_bool(nvl, "clear_counter", true);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0)
- goto out;
- pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule);
- if (anchor_call)
- strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
- MAXPATHLEN);
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_set_keepcounters(int dev, bool keep)
- {
- struct pfioc_nv nv;
- nvlist_t *nvl;
- int ret;
- nvl = nvlist_create(0);
- nvlist_add_bool(nvl, "keep_counters", keep);
- nv.data = nvlist_pack(nvl, &nv.len);
- nv.size = nv.len;
- nvlist_destroy(nvl);
- ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv);
- free(nv.data);
- return (ret);
- }
- struct pfctl_creator {
- uint32_t id;
- };
- #define _IN(_field) offsetof(struct genlmsghdr, _field)
- #define _OUT(_field) offsetof(struct pfctl_creator, _field)
- static struct snl_attr_parser ap_creators[] = {
- { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_creators[] = {
- };
- #undef _IN
- #undef _OUT
- SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, fp_creators, ap_creators);
- static int
- pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len)
- {
- int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
- size_t i = 0;
- struct nlmsghdr *hdr;
- struct snl_writer nw;
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL)
- return (ENOMEM);
- uint32_t seq_id = hdr->nlmsg_seq;
- snl_send_message(ss, hdr);
- struct snl_errmsg_data e = {};
- while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
- struct pfctl_creator c;
- bzero(&c, sizeof(c));
- if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c))
- continue;
- creators[i] = c.id;
- i++;
- if (i > *len)
- return (E2BIG);
- }
- *len = i;
- return (0);
- }
- int
- pfctl_get_creatorids(struct pfctl_handle *h, uint32_t *creators, size_t *len)
- {
- int error;
- error = pfctl_get_creators_nl(&h->ss, creators, len);
- return (error);
- }
- static inline bool
- snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla));
- return (true);
- }
- static inline bool
- snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla,
- const void *arg __unused, void *target)
- {
- size_t maxlen = NLA_DATA_LEN(nla);
- if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) {
- strlcpy(target, (char *)NLA_DATA(nla), maxlen);
- return (true);
- }
- return (false);
- }
- #define _OUT(_field) offsetof(struct pfctl_state_peer, _field)
- static const struct snl_attr_parser nla_p_speer[] = {
- { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 },
- { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 },
- { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 },
- { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 },
- { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 },
- };
- SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer);
- #undef _OUT
- #define _OUT(_field) offsetof(struct pf_state_key_export, _field)
- static const struct snl_attr_parser nla_p_skey[] = {
- { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr },
- { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr },
- { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 },
- { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 },
- };
- SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey);
- #undef _OUT
- #define _IN(_field) offsetof(struct genlmsghdr, _field)
- #define _OUT(_field) offsetof(struct pfctl_state, _field)
- static struct snl_attr_parser ap_state[] = {
- { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 },
- { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname },
- { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname },
- { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested },
- { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested },
- { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested },
- { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested },
- { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr },
- { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 },
- { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 },
- { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 },
- { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 },
- { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 },
- { .type = PF_ST_AF, .off = _OUT(key[0].af), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_PROTO, .off = _OUT(key[0].proto), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 },
- { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_RTABLEID, .off = _OUT(rtableid), .cb = snl_attr_get_int32 },
- { .type = PF_ST_MIN_TTL, .off = _OUT(min_ttl), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_MAX_MSS, .off = _OUT(max_mss), .cb = snl_attr_get_uint16 },
- { .type = PF_ST_DNPIPE, .off = _OUT(dnpipe), .cb = snl_attr_get_uint16 },
- { .type = PF_ST_DNRPIPE, .off = _OUT(dnrpipe), .cb = snl_attr_get_uint16 },
- { .type = PF_ST_RT, .off = _OUT(rt), .cb = snl_attr_get_uint8 },
- { .type = PF_ST_RT_IFNAME, .off = _OUT(rt_ifname), .cb = snl_attr_store_ifname },
- };
- static struct snl_field_parser fp_state[] = {
- };
- #undef _IN
- #undef _OUT
- SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, fp_state, ap_state);
- static const struct snl_hdr_parser *all_parsers[] = {
- &state_parser, &skey_parser, &speer_parser,
- &creator_parser, &getrules_parser
- };
- static int
- pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg)
- {
- SNL_VERIFY_PARSERS(all_parsers);
- int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME);
- int ret;
- struct nlmsghdr *hdr;
- struct snl_writer nw;
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname);
- snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto);
- snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af);
- snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6);
- snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6);
- hdr = snl_finalize_msg(&nw);
- if (hdr == NULL)
- return (ENOMEM);
- uint32_t seq_id = hdr->nlmsg_seq;
- snl_send_message(ss, hdr);
- struct snl_errmsg_data e = {};
- while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) {
- struct pfctl_state s;
- bzero(&s, sizeof(s));
- if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s))
- continue;
- s.key[1].af = s.key[0].af;
- s.key[1].proto = s.key[0].proto;
- ret = f(&s, arg);
- if (ret != 0)
- return (ret);
- }
- return (0);
- }
- int
- pfctl_get_states_iter(pfctl_get_state_fn f, void *arg)
- {
- struct pfctl_state_filter filter = {};
- return (pfctl_get_filtered_states_iter(&filter, f, arg));
- }
- int
- pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg)
- {
- struct snl_state ss = {};
- int error;
- snl_init(&ss, NETLINK_GENERIC);
- error = pfctl_get_states_nl(filter, &ss, f, arg);
- snl_free(&ss);
- return (error);
- }
- static int
- pfctl_append_states(struct pfctl_state *s, void *arg)
- {
- struct pfctl_state *new;
- struct pfctl_states *states = (struct pfctl_states *)arg;
- new = malloc(sizeof(*s));
- if (new == NULL)
- return (ENOMEM);
- memcpy(new, s, sizeof(*s));
- TAILQ_INSERT_TAIL(&states->states, new, entry);
- return (0);
- }
- int
- pfctl_get_states(int dev __unused, struct pfctl_states *states)
- {
- int ret;
- bzero(states, sizeof(*states));
- TAILQ_INIT(&states->states);
- ret = pfctl_get_states_iter(pfctl_append_states, states);
- if (ret != 0) {
- pfctl_free_states(states);
- return (ret);
- }
- return (0);
- }
- void
- pfctl_free_states(struct pfctl_states *states)
- {
- struct pfctl_state *s, *tmp;
- TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) {
- free(s);
- }
- bzero(states, sizeof(*states));
- }
- struct pfctl_nl_clear_states {
- uint32_t killed;
- };
- #define _OUT(_field) offsetof(struct pfctl_nl_clear_states, _field)
- static struct snl_attr_parser ap_clear_states[] = {
- { .type = PF_CS_KILLED, .off = _OUT(killed), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_clear_states[] = {};
- #undef _OUT
- SNL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, fp_clear_states, ap_clear_states);
- static int
- _pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill,
- unsigned int *killed, int cmd)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct pfctl_nl_clear_states attrs = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, cmd);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_u64(&nw, PF_CS_CMP_ID, kill->cmp.id);
- snl_add_msg_attr_u32(&nw, PF_CS_CMP_CREATORID, htonl(kill->cmp.creatorid));
- snl_add_msg_attr_u8(&nw, PF_CS_CMP_DIR, kill->cmp.direction);
- snl_add_msg_attr_u8(&nw, PF_CS_AF, kill->af);
- snl_add_msg_attr_u8(&nw, PF_CS_PROTO, kill->proto);
- snl_add_msg_attr_rule_addr(&nw, PF_CS_SRC, &kill->src);
- snl_add_msg_attr_rule_addr(&nw, PF_CS_DST, &kill->dst);
- snl_add_msg_attr_rule_addr(&nw, PF_CS_RT_ADDR, &kill->rt_addr);
- snl_add_msg_attr_string(&nw, PF_CS_IFNAME, kill->ifname);
- snl_add_msg_attr_string(&nw, PF_CS_LABEL, kill->label);
- snl_add_msg_attr_bool(&nw, PF_CS_KILL_MATCH, kill->kill_match);
- snl_add_msg_attr_bool(&nw, PF_CS_NAT, kill->nat);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &clear_states_parser, &attrs))
- continue;
- }
- if (killed)
- *killed = attrs.killed;
- return (e.error);
- }
- int
- pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill,
- unsigned int *killed)
- {
- return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_CLRSTATES));
- }
- int
- pfctl_kill_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill,
- unsigned int *killed)
- {
- return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_KILLSTATES));
- }
- static int
- _pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill,
- unsigned int *killed, uint64_t cmd)
- {
- struct pfctl_handle *h;
- int ret;
- h = pfctl_open(PF_DEVICE);
- if (h == NULL)
- return (ENODEV);
- ret = _pfctl_clear_states_h(h, kill, killed, cmd);
- pfctl_close(h);
- return (ret);
- }
- int
- pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill,
- unsigned int *killed)
- {
- return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_CLRSTATES));
- }
- int
- pfctl_kill_states(int dev __unused, const struct pfctl_kill *kill, unsigned int *killed)
- {
- return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_KILLSTATES));
- }
- int
- pfctl_clear_rules(int dev, const char *anchorname)
- {
- struct pfioc_trans trans;
- struct pfioc_trans_e transe[2];
- int ret;
- bzero(&trans, sizeof(trans));
- bzero(&transe, sizeof(transe));
- transe[0].rs_num = PF_RULESET_SCRUB;
- if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
- >= sizeof(transe[0].anchor))
- return (E2BIG);
- transe[1].rs_num = PF_RULESET_FILTER;
- if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
- >= sizeof(transe[1].anchor))
- return (E2BIG);
- trans.size = 2;
- trans.esize = sizeof(transe[0]);
- trans.array = transe;
- ret = ioctl(dev, DIOCXBEGIN, &trans);
- if (ret != 0)
- return (ret);
- return ioctl(dev, DIOCXCOMMIT, &trans);
- }
- int
- pfctl_clear_nat(int dev, const char *anchorname)
- {
- struct pfioc_trans trans;
- struct pfioc_trans_e transe[3];
- int ret;
- bzero(&trans, sizeof(trans));
- bzero(&transe, sizeof(transe));
- transe[0].rs_num = PF_RULESET_NAT;
- if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
- >= sizeof(transe[0].anchor))
- return (E2BIG);
- transe[1].rs_num = PF_RULESET_BINAT;
- if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
- >= sizeof(transe[0].anchor))
- return (E2BIG);
- transe[2].rs_num = PF_RULESET_RDR;
- if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor))
- >= sizeof(transe[2].anchor))
- return (E2BIG);
- trans.size = 3;
- trans.esize = sizeof(transe[0]);
- trans.array = transe;
- ret = ioctl(dev, DIOCXBEGIN, &trans);
- if (ret != 0)
- return (ret);
- return ioctl(dev, DIOCXCOMMIT, &trans);
- }
- int
- pfctl_clear_eth_rules(int dev, const char *anchorname)
- {
- struct pfioc_trans trans;
- struct pfioc_trans_e transe;
- int ret;
- bzero(&trans, sizeof(trans));
- bzero(&transe, sizeof(transe));
- transe.rs_num = PF_RULESET_ETH;
- if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor))
- >= sizeof(transe.anchor))
- return (E2BIG);
- trans.size = 1;
- trans.esize = sizeof(transe);
- trans.array = &transe;
- ret = ioctl(dev, DIOCXBEGIN, &trans);
- if (ret != 0)
- return (ret);
- return ioctl(dev, DIOCXCOMMIT, &trans);
- }
- static int
- _pfctl_get_limit(int dev, const int index, uint *limit)
- {
- struct pfioc_limit pl;
- bzero(&pl, sizeof(pl));
- pl.index = index;
- if (ioctl(dev, DIOCGETLIMIT, &pl) == -1)
- return (errno);
- *limit = pl.limit;
- return (0);
- }
- int
- pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s)
- {
- struct pfioc_nv nv;
- nvlist_t *nvl;
- int ret;
- uint state_limit;
- uint64_t lim, hi, lo;
- ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
- if (ret != 0)
- return (ret);
- lim = state_limit;
- hi = lim * s->highwater / 100;
- lo = lim * s->lowwater / 100;
- if (lo == hi)
- hi++;
- nvl = nvlist_create(0);
- nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER);
- nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE);
- nvlist_add_number(nvl, "highwater", hi);
- nvlist_add_number(nvl, "lowwater", lo);
- nv.data = nvlist_pack(nvl, &nv.len);
- nv.size = nv.len;
- nvlist_destroy(nvl);
- nvl = NULL;
- ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv);
- free(nv.data);
- return (ret);
- }
- int
- pfctl_get_syncookies(int dev, struct pfctl_syncookies *s)
- {
- nvlist_t *nvl;
- int ret;
- uint state_limit;
- bool enabled, adaptive;
- ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
- if (ret != 0)
- return (ret);
- bzero(s, sizeof(*s));
- nvl = nvlist_create(0);
- if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) {
- ret = errno;
- goto out;
- }
- enabled = nvlist_get_bool(nvl, "enabled");
- adaptive = nvlist_get_bool(nvl, "adaptive");
- if (enabled) {
- if (adaptive)
- s->mode = PFCTL_SYNCOOKIES_ADAPTIVE;
- else
- s->mode = PFCTL_SYNCOOKIES_ALWAYS;
- } else {
- s->mode = PFCTL_SYNCOOKIES_NEVER;
- }
- s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit;
- s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit;
- s->halfopen_states = nvlist_get_number(nvl, "halfopen_states");
- out:
- nvlist_destroy(nvl);
- return (ret);
- }
- int
- pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
- *addr, int size, int *nadd, int flags)
- {
- struct pfioc_table io;
- if (tbl == NULL || size < 0 || (size && addr == NULL)) {
- return (EINVAL);
- }
- bzero(&io, sizeof io);
- io.pfrio_flags = flags;
- io.pfrio_table = *tbl;
- io.pfrio_buffer = addr;
- io.pfrio_esize = sizeof(*addr);
- io.pfrio_size = size;
- if (ioctl(dev, DIOCRADDADDRS, &io))
- return (errno);
- if (nadd != NULL)
- *nadd = io.pfrio_nadd;
- return (0);
- }
- int
- pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
- *addr, int size, int *ndel, int flags)
- {
- struct pfioc_table io;
- if (tbl == NULL || size < 0 || (size && addr == NULL)) {
- return (EINVAL);
- }
- bzero(&io, sizeof io);
- io.pfrio_flags = flags;
- io.pfrio_table = *tbl;
- io.pfrio_buffer = addr;
- io.pfrio_esize = sizeof(*addr);
- io.pfrio_size = size;
- if (ioctl(dev, DIOCRDELADDRS, &io))
- return (errno);
- if (ndel != NULL)
- *ndel = io.pfrio_ndel;
- return (0);
- }
- int
- pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
- *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags)
- {
- struct pfioc_table io;
- if (tbl == NULL || size < 0 || (size && addr == NULL)) {
- return (EINVAL);
- }
- bzero(&io, sizeof io);
- io.pfrio_flags = flags;
- io.pfrio_table = *tbl;
- io.pfrio_buffer = addr;
- io.pfrio_esize = sizeof(*addr);
- io.pfrio_size = size;
- io.pfrio_size2 = (size2 != NULL) ? *size2 : 0;
- if (ioctl(dev, DIOCRSETADDRS, &io))
- return (-1);
- if (nadd != NULL)
- *nadd = io.pfrio_nadd;
- if (ndel != NULL)
- *ndel = io.pfrio_ndel;
- if (nchange != NULL)
- *nchange = io.pfrio_nchange;
- if (size2 != NULL)
- *size2 = io.pfrio_size2;
- return (0);
- }
- int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr,
- int *size, int flags)
- {
- struct pfioc_table io;
- if (tbl == NULL || size == NULL || *size < 0 ||
- (*size && addr == NULL)) {
- return (EINVAL);
- }
- bzero(&io, sizeof io);
- io.pfrio_flags = flags;
- io.pfrio_table = *tbl;
- io.pfrio_buffer = addr;
- io.pfrio_esize = sizeof(*addr);
- io.pfrio_size = *size;
- if (ioctl(dev, DIOCRGETADDRS, &io))
- return (-1);
- *size = io.pfrio_size;
- return (0);
- }
- int
- pfctl_set_statusif(struct pfctl_handle *h, const char *ifname)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_STATUSIF);
- snl_add_msg_attr_string(&nw, PF_SS_IFNAME, ifname);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- #define _IN(_field) offsetof(struct genlmsghdr, _field)
- #define _OUT(_field) offsetof(struct pfctl_natlook, _field)
- static struct snl_attr_parser ap_natlook[] = {
- { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = snl_attr_get_in6_addr },
- { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = snl_attr_get_in6_addr },
- { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = snl_attr_get_uint16 },
- { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = snl_attr_get_uint16 },
- };
- static struct snl_field_parser fp_natlook[] = {};
- #undef _IN
- #undef _OUT
- SNL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, fp_natlook, ap_natlook);
- int
- pfctl_natlook(struct pfctl_handle *h, const struct pfctl_natlook_key *k,
- struct pfctl_natlook *r)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_NATLOOK);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_u8(&nw, PF_NL_AF, k->af);
- snl_add_msg_attr_u8(&nw, PF_NL_DIRECTION, k->direction);
- snl_add_msg_attr_u8(&nw, PF_NL_PROTO, k->proto);
- snl_add_msg_attr_ip6(&nw, PF_NL_SRC_ADDR, &k->saddr.v6);
- snl_add_msg_attr_ip6(&nw, PF_NL_DST_ADDR, &k->daddr.v6);
- snl_add_msg_attr_u16(&nw, PF_NL_SRC_PORT, k->sport);
- snl_add_msg_attr_u16(&nw, PF_NL_DST_PORT, k->dport);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &natlook_parser, r))
- continue;
- }
- return (e.error);
- }
- int
- pfctl_set_debug(struct pfctl_handle *h, uint32_t level)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_DEBUG);
- snl_add_msg_attr_u32(&nw, PF_SD_LEVEL, level);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- int
- pfctl_set_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t seconds)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_TIMEOUT);
- snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout);
- snl_add_msg_attr_u32(&nw, PF_TO_SECONDS, seconds);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- struct pfctl_nl_timeout {
- uint32_t seconds;
- };
- #define _OUT(_field) offsetof(struct pfctl_nl_timeout, _field)
- static struct snl_attr_parser ap_get_timeout[] = {
- { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_get_timeout[] = {};
- #undef _OUT
- SNL_DECLARE_PARSER(get_timeout_parser, struct genlmsghdr, fp_get_timeout, ap_get_timeout);
- int
- pfctl_get_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t *seconds)
- {
- struct snl_writer nw;
- struct pfctl_nl_timeout to = {};
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_TIMEOUT);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &get_timeout_parser, &to))
- continue;
- }
- if (seconds != NULL)
- *seconds = to.seconds;
- return (e.error);
- }
- int
- pfctl_set_limit(struct pfctl_handle *h, const int index, const uint limit)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_LIMIT);
- snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index);
- snl_add_msg_attr_u32(&nw, PF_LI_LIMIT, limit);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- struct pfctl_nl_limit {
- unsigned int limit;
- };
- #define _OUT(_field) offsetof(struct pfctl_nl_limit, _field)
- static struct snl_attr_parser ap_get_limit[] = {
- { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_get_limit[] = {};
- #undef _OUT
- SNL_DECLARE_PARSER(get_limit_parser, struct genlmsghdr, fp_get_limit, ap_get_limit);
- int
- pfctl_get_limit(struct pfctl_handle *h, const int index, uint *limit)
- {
- struct snl_writer nw;
- struct pfctl_nl_limit li = {};
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_LIMIT);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &get_limit_parser, &li))
- continue;
- }
- if (limit != NULL)
- *limit = li.limit;
- return (e.error);
- }
- struct pfctl_nl_begin_addrs {
- uint32_t ticket;
- };
- #define _OUT(_field) offsetof(struct pfctl_nl_begin_addrs, _field)
- static struct snl_attr_parser ap_begin_addrs[] = {
- { .type = PF_BA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_begin_addrs[] = {};
- #undef _OUT
- SNL_DECLARE_PARSER(begin_addrs_parser, struct genlmsghdr, fp_begin_addrs, ap_begin_addrs);
- int
- pfctl_begin_addrs(struct pfctl_handle *h, uint32_t *ticket)
- {
- struct snl_writer nw;
- struct pfctl_nl_begin_addrs attrs = {};
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_BEGIN_ADDRS);
- hdr->nlmsg_flags |= NLM_F_DUMP;
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &begin_addrs_parser, &attrs))
- continue;
- }
- if (ticket != NULL)
- *ticket = attrs.ticket;
- return (e.error);
- }
- int
- pfctl_add_addr(struct pfctl_handle *h, const struct pfioc_pooladdr *pa)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADD_ADDR);
- snl_add_msg_attr_u32(&nw, PF_AA_ACTION, pa->action);
- snl_add_msg_attr_u32(&nw, PF_AA_TICKET, pa->ticket);
- snl_add_msg_attr_u32(&nw, PF_AA_NR, pa->nr);
- snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, pa->r_num);
- snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, pa->r_action);
- snl_add_msg_attr_u8(&nw, PF_AA_R_LAST, pa->r_last);
- snl_add_msg_attr_u8(&nw, PF_AA_AF, pa->af);
- snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, pa->anchor);
- snl_add_msg_attr_pool_addr(&nw, PF_AA_ADDR, &pa->addr);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- }
- return (e.error);
- }
- static const struct snl_attr_parser ap_get_addrs[] = {
- { .type = PF_AA_NR, .off = 0, .cb = snl_attr_get_uint32 },
- };
- static struct snl_field_parser fp_get_addrs[] = {};
- SNL_DECLARE_PARSER(get_addrs_parser, struct genlmsghdr, fp_get_addrs, ap_get_addrs);
- int
- pfctl_get_addrs(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num,
- uint8_t r_action, const char *anchor, uint32_t *nr)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_ADDRS);
- snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket);
- snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num);
- snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action);
- snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &get_addrs_parser, nr))
- continue;
- }
- return (e.error);
- }
- #define _OUT(_field) offsetof(struct pf_pooladdr, _field)
- static const struct snl_attr_parser ap_pool_addr[] = {
- { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested },
- { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string },
- };
- SNL_DECLARE_ATTR_PARSER(pool_addr_parser, ap_pool_addr);
- #undef _OUT
- #define _OUT(_field) offsetof(struct pfioc_pooladdr, _field)
- static const struct snl_attr_parser ap_get_addr[] = {
- { .type = PF_AA_ACTION, .off = _OUT(action), .cb = snl_attr_get_uint32 },
- { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 },
- { .type = PF_AA_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 },
- { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = snl_attr_get_uint32 },
- { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = snl_attr_get_uint8 },
- { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = snl_attr_get_uint8 },
- { .type = PF_AA_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 },
- { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg_u32 = MAXPATHLEN, .cb = snl_attr_copy_string },
- { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = snl_attr_get_nested },
- };
- static struct snl_field_parser fp_get_addr[] = {};
- SNL_DECLARE_PARSER(get_addr_parser, struct genlmsghdr, fp_get_addr, ap_get_addr);
- #undef _OUT
- int
- pfctl_get_addr(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num,
- uint8_t r_action, const char *anchor, uint32_t nr, struct pfioc_pooladdr *pa)
- {
- struct snl_writer nw;
- struct snl_errmsg_data e = {};
- struct nlmsghdr *hdr;
- uint32_t seq_id;
- int family_id;
- family_id =snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
- if (family_id == 0)
- return (ENOTSUP);
- snl_init_writer(&h->ss, &nw);
- hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_ADDR);
- snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket);
- snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num);
- snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action);
- snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor);
- snl_add_msg_attr_u32(&nw, PF_AA_NR, nr);
- if ((hdr = snl_finalize_msg(&nw)) == NULL)
- return (ENXIO);
- seq_id = hdr->nlmsg_seq;
- if (! snl_send_message(&h->ss, hdr))
- return (ENXIO);
- while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
- if (! snl_parse_nlmsg(&h->ss, hdr, &get_addr_parser, pa))
- continue;
- }
- return (0);
- }
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