#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);
static void _pfctl_verify_parsers(void);
struct pfctl_handle *
pfctl_open(const char *pf_device)
{
struct pfctl_handle *h;
_pfctl_verify_parsers();
h = calloc(1, sizeof(struct pfctl_handle));
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:
if (h->fd != -1)
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_PCOUNTERS, .off = _OUT(pcounters), .arg_u32 = 2 * 2 * 2, .cb = snl_attr_get_uint64_array },
{ .type = PF_GS_BCOUNTERS, .off = _OUT(bcounters), .arg_u32 = 2 * 2, .cb = snl_attr_get_uint64_array },
{ .type = PF_GS_NCOUNTERS, .off = _OUT(ncounters), .cb = snl_attr_get_counters },
{ .type = PF_GS_FRAGMENTS, .off = _OUT(fragments), .cb = snl_attr_get_uint64 },
};
SNL_DECLARE_PARSER(getstatus_parser, struct genlmsghdr, snl_f_p_empty, ap_getstatus);
#undef _OUT
struct pfctl_status *
pfctl_get_status_h(struct pfctl_handle *h)
{
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);
TAILQ_INIT(&status->ncounters);
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);
}
TAILQ_FOREACH_SAFE(c, &status->ncounters, 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->rdr);
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");
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_threshold(struct snl_writer *nw, uint32_t type, const struct pfctl_threshold *th)
{
int off;
off = snl_add_msg_attr_nested(nw, type);
snl_add_msg_attr_u32(nw, PF_TH_LIMIT, th->limit);
snl_add_msg_attr_u32(nw, PF_TH_SECONDS, th->seconds);
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_RDR, &r->rdr);
snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_NAT, &r->nat);
snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RT, &r->route);
snl_add_msg_attr_threshold(nw, PF_RT_PKTRATE, &r->pktrate);
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, r->max_src_conn);
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_MAX_PKT_SIZE, r->max_pkt_size);
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_string(nw, PF_RT_RCV_IFNAME, r->rcv_ifname);
snl_add_msg_attr_bool(nw, PF_RT_RCV_IFNOT, r->rcvifnot);
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_u16(nw, PF_RT_TYPE_2, r->type);
snl_add_msg_attr_u16(nw, PF_RT_CODE_2, 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_u8(nw, PF_RT_NAF, r->naf);
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_add_msg_attr_u8(nw, PF_RT_STATE_LIMIT, r->statelim.id);
snl_add_msg_attr_u32(nw, PF_RT_STATE_LIMIT_ACTION, r->statelim.limiter_action);
snl_add_msg_attr_u8(nw, PF_RT_SOURCE_LIMIT, r->sourcelim.id);
snl_add_msg_attr_u32(nw, PF_RT_SOURCE_LIMIT_ACTION, r->sourcelim.limiter_action);
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 },
};
#undef _IN
#undef _OUT
SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, snl_f_p_empty, 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 (false);
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;
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 (false);
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;
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
#define _OUT(_field) offsetof(struct pfctl_threshold, _field)
static const struct snl_attr_parser ap_pfctl_threshold[] = {
{ .type = PF_TH_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
{ .type = PF_TH_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 },
{ .type = PF_TH_COUNT, .off = _OUT(count), .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_ATTR_PARSER(pfctl_threshold_parser, ap_pfctl_threshold);
#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_RDR, .off = _OUT(r.rdr), .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 },
{ .type = PF_RT_RCV_IFNAME, .off = _OUT(r.rcv_ifname), .arg = (void*)IFNAMSIZ, .cb = snl_attr_copy_string },
{ .type = PF_RT_MAX_SRC_CONN, .off = _OUT(r.max_src_conn), .cb = snl_attr_get_uint32 },
{ .type = PF_RT_RPOOL_NAT, .off = _OUT(r.nat), .arg = &pool_parser, .cb = snl_attr_get_nested },
{ .type = PF_RT_NAF, .off = _OUT(r.naf), .cb = snl_attr_get_uint8 },
{ .type = PF_RT_RPOOL_RT, .off = _OUT(r.route), .arg = &pool_parser, .cb = snl_attr_get_nested },
{ .type = PF_RT_RCV_IFNOT, .off = _OUT(r.rcvifnot),.cb = snl_attr_get_bool },
{ .type = PF_RT_SRC_NODES_LIMIT, .off = _OUT(r.src_nodes_type[PF_SN_LIMIT]), .cb = snl_attr_get_uint64 },
{ .type = PF_RT_SRC_NODES_NAT, .off = _OUT(r.src_nodes_type[PF_SN_NAT]), .cb = snl_attr_get_uint64 },
{ .type = PF_RT_SRC_NODES_ROUTE, .off = _OUT(r.src_nodes_type[PF_SN_ROUTE]), .cb = snl_attr_get_uint64 },
{ .type = PF_RT_PKTRATE, .off = _OUT(r.pktrate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested },
{ .type = PF_RT_MAX_PKT_SIZE, .off =_OUT(r.max_pkt_size), .cb = snl_attr_get_uint16 },
{ .type = PF_RT_TYPE_2, .off = _OUT(r.type), .cb = snl_attr_get_uint16 },
{ .type = PF_RT_CODE_2, .off = _OUT(r.code), .cb = snl_attr_get_uint16 },
{ .type = PF_RT_EXPTIME, .off = _OUT(r.exptime), .cb = snl_attr_get_time_t },
{ .type = PF_RT_STATE_LIMIT, .off = _OUT(r.statelim.id), .cb = snl_attr_get_uint8 },
{ .type = PF_RT_SOURCE_LIMIT, .off = _OUT(r.sourcelim.id), .cb = snl_attr_get_uint8 },
{ .type = PF_RT_STATE_LIMIT_ACTION, .off = _OUT(r.statelim.limiter_action), .cb = snl_attr_get_uint32 },
{ .type = PF_RT_SOURCE_LIMIT_ACTION, .off = _OUT(r.sourcelim.limiter_action), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, snl_f_p_empty, 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 },
};
#undef _IN
#undef _OUT
SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, snl_f_p_empty, 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 pfctl_state_key, _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 },
{ .type = PF_STK_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 },
{ .type = PF_STK_PROTO, .off = _OUT(proto), .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_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 },
{ .type = PF_ST_SRC_NODE_FLAGS, .off = _OUT(src_node_flags), .cb = snl_attr_get_uint8 },
{ .type = PF_ST_RT_AF, .off = _OUT(rt_af), .cb = snl_attr_get_uint8 },
};
#undef _IN
#undef _OUT
SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, snl_f_p_empty, ap_state);
int
pfctl_get_states_h(struct pfctl_handle *h, struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg)
{
int family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME);
int ret;
struct nlmsghdr *hdr;
struct snl_writer nw;
if (family_id == 0)
return (ENOTSUP);
snl_init_writer(&h->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(&h->ss, hdr);
struct snl_errmsg_data e = {};
while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
struct pfctl_state s;
bzero(&s, sizeof(s));
if (!snl_parse_nlmsg(&h->ss, hdr, &state_parser, &s))
continue;
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 pfctl_handle h = {};
int error;
snl_init(&h.ss, NETLINK_GENERIC);
error = pfctl_get_states_h(&h, filter, f, arg);
snl_free(&h.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 },
};
#undef _OUT
SNL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, snl_f_p_empty, 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 (errno);
ret = ioctl(dev, DIOCXCOMMIT, &trans);
if (ret != 0)
return (errno);
return (0);
}
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 (errno);
ret = ioctl(dev, DIOCXCOMMIT, &trans);
if (ret != 0)
return (errno);
return (0);
}
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 (errno);
ret = ioctl(dev, DIOCXCOMMIT, &trans);
if (ret != 0)
return (errno);
return (0);
}
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);
if (state_limit == 0)
state_limit = INT_MAX;
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);
if (ret != 0)
return (errno);
return (0);
}
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);
if (state_limit == 0)
state_limit = INT_MAX;
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);
}
static void
snl_add_msg_attr_table(struct snl_writer *nw, uint32_t type,
const struct pfr_table *tbl)
{
int off;
off = snl_add_msg_attr_nested(nw, type);
snl_add_msg_attr_string(nw, PF_T_ANCHOR, tbl->pfrt_anchor);
snl_add_msg_attr_string(nw, PF_T_NAME, tbl->pfrt_name);
snl_add_msg_attr_u32(nw, PF_T_TABLE_FLAGS, tbl->pfrt_flags);
snl_end_attr_nested(nw, off);
}
static void
snl_add_msg_attr_pfr_addr(struct snl_writer *nw, uint32_t type,
const struct pfr_addr *addr)
{
int off;
off = snl_add_msg_attr_nested(nw, type);
snl_add_msg_attr_u8(nw, PFR_A_AF, addr->pfra_af);
snl_add_msg_attr_u8(nw, PFR_A_NET, addr->pfra_net);
snl_add_msg_attr_bool(nw, PFR_A_NOT, addr->pfra_not);
snl_add_msg_attr_ip6(nw, PFR_A_ADDR, &addr->pfra_ip6addr);
snl_end_attr_nested(nw, off);
}
static struct snl_attr_parser ap_table_add_addr[] = {
{ .type = PF_TA_NBR_ADDED, .off = 0, .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_PARSER(table_add_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_add_addr);
static int
_pfctl_table_add_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr
*addrs, int size, int *nadd, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
uint32_t added;
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_TABLE_ADD_ADDR);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
for (int i = 0; i < size; i++)
snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]);
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, &table_add_addr_parser, &added))
continue;
}
if (nadd)
*nadd = added;
return (e.error);
}
int
pfctl_table_add_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr
*addr, int size, int *nadd, int flags)
{
int ret;
int off = 0;
int partial_added;
int chunk_size;
do {
chunk_size = MIN(size - off, 256);
ret = _pfctl_table_add_addrs_h(h, tbl, &addr[off], chunk_size, &partial_added, flags);
if (ret != 0)
break;
if (nadd)
*nadd += partial_added;
off += chunk_size;
} while (off < size);
return (ret);
}
static struct snl_attr_parser ap_table_del_addr[] = {
{ .type = PF_TA_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_PARSER(table_del_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_del_addr);
static int
_pfctl_table_del_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr
*addrs, int size, int *ndel, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
uint32_t deleted;
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_TABLE_DEL_ADDR);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
for (int i = 0; i < size; i++)
snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]);
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, &table_del_addr_parser, &deleted))
continue;
}
if (ndel)
*ndel = deleted;
return (e.error);
}
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_del_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr
*addr, int size, int *ndel, int flags)
{
int ret;
int off = 0;
int partial_deleted;
int chunk_size;
do {
chunk_size = MIN(size - off, 256);
ret = _pfctl_table_del_addrs_h(h, tbl, &addr[off], chunk_size,
&partial_deleted, flags);
if (ret != 0)
break;
if (ndel)
*ndel += partial_deleted;
off += chunk_size;
} while (off < size);
return (ret);
}
struct pfctl_change {
int add;
int del;
int change;
};
#define _OUT(_field) offsetof(struct pfctl_change, _field)
static struct snl_attr_parser ap_table_set_addr[] = {
{ .type = PF_TA_NBR_ADDED, .off = _OUT(add), .cb = snl_attr_get_uint32 },
{ .type = PF_TA_NBR_DELETED, .off = _OUT(del), .cb = snl_attr_get_uint32 },
{ .type = PF_TA_NBR_CHANGED, .off = _OUT(change), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_PARSER(table_set_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_set_addr);
static int
_pfctl_table_set_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr
*addrs, int size, int *nadd, int *ndel, int *nchange, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
struct pfctl_change change = { 0 };
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_TABLE_SET_ADDR);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
for (int i = 0; i < size; i++)
snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]);
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, &table_set_addr_parser, &change))
continue;
}
if (nadd)
*nadd = change.add;
if (ndel)
*ndel = change.del;
if (nchange)
*nchange = change.change;
return (e.error);
}
int
pfctl_table_set_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl,
struct pfr_addr *addr, int size, int *nadd, int *ndel,
int *nchange, int flags)
{
int ret;
int off = 0;
int partial_add, partial_del, partial_change;
int chunk_size;
do {
flags &= ~(PFR_FLAG_START | PFR_FLAG_DONE);
if (off == 0)
flags |= PFR_FLAG_START;
chunk_size = MIN(size - off, 256);
if ((chunk_size + off) == size)
flags |= PFR_FLAG_DONE;
ret = _pfctl_table_set_addrs_h(h, tbl, &addr[off], chunk_size,
&partial_add, &partial_del, &partial_change, flags);
if (ret != 0)
break;
if (! (flags & PFR_FLAG_DONE)) {
assert(partial_del == 0);
}
if (nadd)
*nadd += partial_add;
if (ndel)
*ndel += partial_del;
if (nchange)
*nchange += partial_change;
off += chunk_size;
} while (off < size);
return (ret);
}
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 (errno);
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 (errno);
*size = io.pfrio_size;
return (0);
}
struct nl_addrs {
size_t max;
struct pfr_addr *addrs;
size_t count;
size_t total_count;
};
#define _OUT(_field) offsetof(struct pfr_addr, _field)
static const struct snl_attr_parser ap_pfr_addr[] = {
{ .type = PFR_A_AF, .off = _OUT(pfra_af), .cb = snl_attr_get_uint32 },
{ .type = PFR_A_NET, .off = _OUT(pfra_net), .cb = snl_attr_get_uint8 },
{ .type = PFR_A_NOT, .off = _OUT(pfra_not), .cb = snl_attr_get_bool },
{ .type = PFR_A_ADDR, .off = _OUT(pfra_ip6addr), .cb = snl_attr_get_in6_addr },
};
#undef _OUT
SNL_DECLARE_ATTR_PARSER(pfr_addr_parser, ap_pfr_addr);
static bool
snl_attr_get_pfr_addrs(struct snl_state *ss, struct nlattr *nla,
const void *arg __unused, void *target)
{
struct nl_addrs *a = (struct nl_addrs *)target;
bool ret;
if (a->count >= a->max)
return (false);
ret = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla),
&pfr_addr_parser, &a->addrs[a->count]);
if (ret)
a->count++;
return (ret);
}
#define _OUT(_field) offsetof(struct nl_addrs, _field)
static struct snl_attr_parser ap_table_get_addr[] = {
{ .type = PF_TA_ADDR, .off = 0, .cb = snl_attr_get_pfr_addrs },
{ .type = PF_TA_ADDR_COUNT, .off = _OUT(total_count), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_PARSER(table_get_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_get_addr);
int
pfctl_table_get_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl,
struct pfr_addr *addr, int *size, int flags)
{
struct nl_addrs addrs = { 0 };
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_TABLE_GET_ADDR);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
if ((hdr = snl_finalize_msg(&nw)) == NULL)
return (ENXIO);
seq_id = hdr->nlmsg_seq;
if (! snl_send_message(&h->ss, hdr))
return (ENXIO);
addrs.addrs = addr;
addrs.max = *size;
while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
if (! snl_parse_nlmsg(&h->ss, hdr, &table_get_addr_parser, &addrs))
continue;
}
*size = addrs.total_count;
return (e.error);
}
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 },
};
#undef _IN
#undef _OUT
SNL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, snl_f_p_empty, 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 },
};
#undef _OUT
SNL_DECLARE_PARSER(get_timeout_parser, struct genlmsghdr, snl_f_p_empty, 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 },
};
#undef _OUT
SNL_DECLARE_PARSER(get_limit_parser, struct genlmsghdr, snl_f_p_empty, 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 },
};
#undef _OUT
SNL_DECLARE_PARSER(begin_addrs_parser, struct genlmsghdr, snl_f_p_empty, 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, int which)
{
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);
snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which);
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 },
};
SNL_DECLARE_PARSER(get_addrs_parser, struct genlmsghdr, snl_f_p_empty, 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, int which)
{
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);
snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which);
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 },
};
SNL_DECLARE_PARSER(get_addr_parser, struct genlmsghdr, snl_f_p_empty, 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,
int which)
{
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);
snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which);
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 (e.error);
}
#define _OUT(_field) offsetof(struct pfioc_ruleset, _field)
static const struct snl_attr_parser ap_ruleset[] = {
{ .type = PF_RS_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 },
{ .type = PF_RS_NAME, .off = _OUT(name), .arg = (void *)PF_ANCHOR_NAME_SIZE, .cb = snl_attr_copy_string },
};
SNL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, snl_f_p_empty, ap_ruleset);
#undef _OUT
int
pfctl_get_rulesets(struct pfctl_handle *h, const char *path, uint32_t *nr)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
struct pfioc_ruleset rs = {};
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_RULESETS);
snl_add_msg_attr_string(&nw, PF_RS_PATH, path);
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, &ruleset_parser, &rs))
continue;
}
*nr = rs.nr;
return (e.error);
}
int
pfctl_get_ruleset(struct pfctl_handle *h, const char *path, uint32_t nr, struct pfioc_ruleset *rs)
{
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_RULESET);
snl_add_msg_attr_string(&nw, PF_RS_PATH, path);
snl_add_msg_attr_u32(&nw, PF_RS_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, &ruleset_parser, rs))
continue;
}
rs->nr = nr;
strlcpy(rs->path, path, sizeof(rs->path));
return (e.error);
}
#define _OUT(_field) offsetof(struct pfctl_src_node, _field)
static struct snl_attr_parser ap_srcnode[] = {
{ .type = PF_SN_ADDR, .off = _OUT(addr), .cb = snl_attr_get_in6_addr },
{ .type = PF_SN_RADDR, .off = _OUT(raddr), .cb = snl_attr_get_in6_addr },
{ .type = PF_SN_RULE_NR, .off = _OUT(rule), .cb = snl_attr_get_uint32 },
{ .type = PF_SN_BYTES_IN, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_BYTES_OUT, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_PACKETS_IN, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_PACKETS_OUT, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 },
{ .type = PF_SN_CONNECTIONS, .off = _OUT(conn), .cb = snl_attr_get_uint32 },
{ .type = PF_SN_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 },
{ .type = PF_SN_RULE_TYPE, .off = _OUT(ruletype), .cb = snl_attr_get_uint8 },
{ .type = PF_SN_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint64 },
{ .type = PF_SN_CONNECTION_RATE, .off = _OUT(conn_rate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested },
{ .type = PF_SN_RAF, .off = _OUT(raf), .cb = snl_attr_get_uint8 },
{ .type = PF_SN_NODE_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 },
};
#undef _OUT
SNL_DECLARE_PARSER(srcnode_parser, struct genlmsghdr, snl_f_p_empty, ap_srcnode);
int
pfctl_get_srcnodes(struct pfctl_handle *h, pfctl_get_srcnode_fn fn, void *arg)
{
struct snl_writer nw;
struct pfctl_src_node sn;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
int family_id;
int ret;
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_SRCNODES);
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) {
bzero(&sn, sizeof(sn));
if (!snl_parse_nlmsg(&h->ss, hdr, &srcnode_parser, &sn))
continue;
ret = fn(&sn, arg);
if (ret != 0)
return (ret);
}
return (e.error);
}
static struct snl_attr_parser ap_ndel[] = {
{ .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_PARSER(ndel_parser, struct genlmsghdr, snl_f_p_empty, ap_ndel);
int
pfctl_clear_tables(struct pfctl_handle *h, struct pfr_table *filter,
int *ndel, int flags)
{
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_CLEAR_TABLES);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags);
snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags);
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, &ndel_parser, ndel))
continue;
}
return (e.error);
}
static struct snl_attr_parser ap_nadd[] = {
{ .type = PF_T_NBR_ADDED, .off = 0, .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_PARSER(nadd_parser, struct genlmsghdr, snl_f_p_empty, ap_nadd);
int
pfctl_add_table(struct pfctl_handle *h, struct pfr_table *table,
int *nadd, int flags)
{
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_TABLE);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags);
snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags);
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, &nadd_parser, nadd))
continue;
}
return (e.error);
}
int
pfctl_del_table(struct pfctl_handle *h, struct pfr_table *table,
int *ndel, int flags)
{
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_DEL_TABLE);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags);
snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags);
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, &ndel_parser, ndel))
continue;
}
return (e.error);
}
static bool
snl_attr_get_uint64_into_int_array(struct snl_state *ss, struct nlattr *nla,
const void *arg, void *target)
{
uint64_t *u64target;
struct snl_uint64_array a = {
.count = 0,
.max = (size_t)arg,
};
bool error;
u64target = malloc(a.max * sizeof(uint64_t));
a.array = u64target;
error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a);
if (! error)
return (error);
for (size_t i = 0; i < a.count; i++)
((int *)target)[i] = (int)u64target[i];
free(u64target);
return (true);
}
#define _OUT(_field) offsetof(struct pfr_table, _field)
static const struct snl_attr_parser ap_table[] = {
{ .type = PF_T_ANCHOR, .off = _OUT(pfrt_anchor), .arg = (void *)MAXPATHLEN, .cb = snl_attr_copy_string },
{ .type = PF_T_NAME, .off = _OUT(pfrt_name), .arg = (void *)PF_TABLE_NAME_SIZE, .cb =snl_attr_copy_string },
{ .type = PF_T_TABLE_FLAGS, .off = _OUT(pfrt_flags), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_ATTR_PARSER(table_parser, ap_table);
#define _OUT(_field) offsetof(struct pfr_tstats, _field)
static struct snl_attr_parser ap_tstats[] = {
{ .type = PF_TS_TABLE, .off = _OUT(pfrts_t), .arg = &table_parser, .cb = snl_attr_get_nested },
{ .type = PF_TS_PACKETS, .off = _OUT(pfrts_packets), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array},
{ .type = PF_TS_BYTES, .off = _OUT(pfrts_bytes), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array },
{ .type = PF_TS_MATCH, .off = _OUT(pfrts_match), .cb = snl_attr_get_uint64 },
{. type = PF_TS_NOMATCH, .off = _OUT(pfrts_nomatch), .cb = snl_attr_get_uint64 },
{ .type = PF_TS_TZERO, .off = _OUT(pfrts_tzero), .cb = snl_attr_get_uint64 },
{ .type = PF_TS_CNT, .off = _OUT(pfrts_cnt), .cb = snl_attr_get_uint64 },
{ .type = PF_TS_REFCNT, .off = _OUT(pfrts_refcnt), . arg = (void *)PFR_REFCNT_MAX, .cb = snl_attr_get_uint64_into_int_array },
};
#undef _OUT
SNL_DECLARE_PARSER(tstats_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats);
int
pfctl_get_tstats(struct pfctl_handle *h, const struct pfr_table *filter,
pfctl_get_tstats_fn fn, void *arg)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
int family_id;
int ret;
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_TSTATS);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags);
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) {
struct pfr_tstats tstats = {};
if (!snl_parse_nlmsg(&h->ss, hdr, &tstats_parser, &tstats))
continue;
ret = fn(&tstats, arg);
if (ret != 0)
break;
}
return (e.error);
}
static struct snl_attr_parser ap_tstats_clr[] = {
{ .type = PF_TS_NZERO, .off = 0, .cb = snl_attr_get_uint64 },
};
SNL_DECLARE_PARSER(tstats_clr_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats_clr);
int
pfctl_clear_tstats(struct pfctl_handle *h, const struct pfr_table *filter,
int *nzero, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint64_t zero;
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_CLR_TSTATS);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags);
snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags);
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, &tstats_clr_parser, &zero))
continue;
if (nzero)
*nzero = (uint32_t)zero;
}
return (e.error);
}
static struct snl_attr_parser ap_clr_addrs[] = {
{ .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint64 },
};
SNL_DECLARE_PARSER(clr_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_clr_addrs);
int
pfctl_clear_addrs(struct pfctl_handle *h, const struct pfr_table *filter,
int *ndel, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint64_t del;
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_CLR_ADDRS);
snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor);
snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name);
snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags);
snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags);
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, &clr_addrs_parser, &del))
continue;
if (ndel)
*ndel = (uint32_t)del;
}
return (e.error);
}
struct nl_astats {
struct pfr_astats *a;
size_t max;
size_t count;
uint32_t total_count;
uint32_t zeroed;
};
#define _OUT(_field) offsetof(struct pfr_astats, _field)
static const struct snl_attr_parser ap_pfr_astats[] = {
{ .type = PF_AS_ADDR , .off = _OUT(pfras_a), .arg = &pfr_addr_parser, .cb = snl_attr_get_nested },
{ .type = PF_AS_PACKETS, .off = _OUT(pfras_packets), .arg = (void *)(PFR_DIR_MAX * PFR_OP_ADDR_MAX), .cb = snl_attr_get_uint64_array },
{ .type = PF_AS_BYTES, .off = _OUT(pfras_bytes), .arg = (void *)(PFR_DIR_MAX * PFR_OP_ADDR_MAX), .cb = snl_attr_get_uint64_array },
{ .type = PF_AS_TZERO, .off = _OUT(pfras_tzero), .cb = snl_attr_get_time_t },
};
#undef _OUT
SNL_DECLARE_ATTR_PARSER(pfr_astats_parser, ap_pfr_astats);
static bool
snl_attr_get_pfr_astats(struct snl_state *ss, struct nlattr *nla,
const void *arg __unused, void *target)
{
struct nl_astats *a = (struct nl_astats *)target;
bool ret;
if (a->count >= a->max)
return (false);
ret = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla),
&pfr_astats_parser, &a->a[a->count]);
if (ret)
a->count++;
return (ret);
}
#define _OUT(_field) offsetof(struct nl_astats, _field)
static struct snl_attr_parser ap_table_get_astats[] = {
{ .type = PF_TAS_ASTATS, .off = 0, .cb = snl_attr_get_pfr_astats },
{ .type = PF_TAS_ASTATS_COUNT, .off = _OUT(total_count), .cb = snl_attr_get_uint32 },
{ .type = PF_TAS_ASTATS_ZEROED, .off = _OUT(zeroed), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_PARSER(table_astats_parser, struct genlmsghdr, snl_f_p_empty, ap_table_get_astats);
int
pfctl_get_astats(struct pfctl_handle *h, const struct pfr_table *tbl,
struct pfr_astats *as, int *size, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
struct nl_astats out = { 0 };
uint32_t seq_id;
int family_id;
if (tbl == NULL || size == NULL || *size < 0 ||
(*size && as == NULL)) {
errno = EINVAL;
return (-1);
}
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_TABLE_GET_ASTATS);
snl_add_msg_attr_table(&nw, PF_TAS_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TAS_FLAGS, flags);
if ((hdr = snl_finalize_msg(&nw)) == NULL)
return (ENXIO);
seq_id = hdr->nlmsg_seq;
if (! snl_send_message(&h->ss, hdr))
return (ENXIO);
out.a = as;
out.max = *size;
while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) {
if (! snl_parse_nlmsg(&h->ss, hdr, &table_astats_parser, &out))
continue;
}
*size = out.total_count;
return (0);
}
static int
_pfctl_clr_astats(struct pfctl_handle *h, const struct pfr_table *tbl,
struct pfr_addr *addrs, int size, int *nzero, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
struct nl_astats attrs;
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_TABLE_CLEAR_ASTATS);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
for (int i = 0; i < size; i++)
snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]);
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, &table_astats_parser, &attrs))
continue;
}
if (nzero)
*nzero = attrs.zeroed;
return (e.error);
}
int
pfctl_clr_astats(struct pfctl_handle *h, const struct pfr_table *tbl,
struct pfr_addr *addrs, int size, int *nzero, int flags)
{
int ret;
int off = 0;
int partial_zeroed;
int chunk_size;
do {
chunk_size = MIN(size - off, 256);
ret = _pfctl_clr_astats(h, tbl, &addrs[off], chunk_size,
&partial_zeroed, flags);
if (ret != 0)
break;
if (nzero)
*nzero += partial_zeroed;
off += chunk_size;
} while (off < size);
return (ret);
}
static int
_pfctl_test_addrs(struct pfctl_handle *h, const struct pfr_table *tbl,
struct pfr_addr *addrs, int size, int *nmatch, int flags)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
struct nl_astats attrs;
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_TABLE_TEST_ADDRS);
snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
for (int i = 0; i < size; i++)
snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]);
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, &table_astats_parser, &attrs))
continue;
}
if (nmatch)
*nmatch = attrs.total_count;
return (e.error);
}
int
pfctl_test_addrs(struct pfctl_handle *h, const struct pfr_table *tbl,
struct pfr_addr *addrs, int size, int *nmatch, int flags)
{
int ret;
int off = 0;
int partial_match;
int chunk_size;
if (nmatch)
*nmatch = 0;
do {
chunk_size = MIN(size - off, 256);
ret = _pfctl_test_addrs(h, tbl, &addrs[off], chunk_size,
&partial_match, flags);
if (ret != 0)
break;
if (nmatch)
*nmatch += partial_match;
off += chunk_size;
} while (off < size);
return (ret);
}
static void
snl_add_msg_attr_limit_rate(struct snl_writer *nw, uint32_t type,
const struct pfctl_limit_rate *rate)
{
int off;
off = snl_add_msg_attr_nested(nw, type);
snl_add_msg_attr_u32(nw, PF_LR_LIMIT, rate->limit);
snl_add_msg_attr_u32(nw, PF_LR_SECONDS, rate->seconds);
snl_end_attr_nested(nw, off);
}
#define _OUT(_field) offsetof(struct pfctl_limit_rate, _field)
static const struct snl_attr_parser ap_limit_rate[] = {
{ .type = PF_LR_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
{ .type = PF_LR_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 },
};
SNL_DECLARE_ATTR_PARSER(limit_rate_parser, ap_limit_rate);
#undef _OUT
#define _OUT(_field) offsetof(struct pfctl_state_lim, _field)
static struct snl_attr_parser ap_statelim[] = {
{ .type = PF_SL_NAME, .off = _OUT(name), .arg_u32 = PF_STATELIM_NAME_LEN, .cb = snl_attr_copy_string },
{ .type = PF_SL_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
{ .type = PF_SL_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
{ .type = PF_SL_RATE, .off = _OUT(rate), .arg = &limit_rate_parser, .cb = snl_attr_get_nested },
{ .type = PF_SL_DESCR, .off = _OUT(description), .arg_u32 = PF_STATELIM_DESCR_LEN, .cb = snl_attr_copy_string },
{ .type = PF_SL_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 },
{ .type = PF_SL_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 },
{ .type = PF_SL_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 },
{ .type = PF_SL_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 },
};
#undef _OUT
SNL_DECLARE_PARSER(statelim_parser, struct genlmsghdr, snl_f_p_empty, ap_statelim);
int
pfctl_state_limiter_nget(struct pfctl_handle *h, struct pfctl_state_lim *lim)
{
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_STATE_LIMITER_NGET);
snl_add_msg_attr_u32(&nw, PF_SL_ID, lim->id);
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, &statelim_parser, lim))
continue;
}
return (e.error);
}
int
pfctl_state_limiter_add(struct pfctl_handle *h, struct pfctl_state_lim *lim)
{
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_STATE_LIMITER_ADD);
snl_add_msg_attr_u32(&nw, PF_SL_ID, lim->id);
snl_add_msg_attr_u32(&nw, PF_SL_TICKET, lim->ticket);
snl_add_msg_attr_string(&nw, PF_SL_NAME, lim->name);
snl_add_msg_attr_u32(&nw, PF_SL_LIMIT, lim->limit);
snl_add_msg_attr_limit_rate(&nw, PF_SL_RATE, &lim->rate);
snl_add_msg_attr_string(&nw, PF_SL_DESCR, lim->description);
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, &statelim_parser, &lim))
continue;
}
return (e.error);
}
#define _OUT(_field) offsetof(struct pfctl_source_lim, _field)
static struct snl_attr_parser ap_sourcelim[] = {
{ .type = PF_SCL_NAME, .off = _OUT(name), .arg_u32 = PF_SOURCELIM_NAME_LEN, .cb = snl_attr_copy_string },
{ .type = PF_SCL_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_ENTRIES, .off = _OUT(entries), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_RATE, .off = _OUT(rate), .arg = &limit_rate_parser, .cb = snl_attr_get_nested },
{ .type = PF_SCL_OVERLOAD_TBL_NAME, .off = _OUT(overload_tblname), .arg_u32 = PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string },
{ .type = PF_SCL_OVERLOAD_HIGH_WM, .off = _OUT(overload_hwm), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_OVERLOAD_LOW_WM, .off = _OUT(overload_lwm), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_INET_PREFIX, .off = _OUT(inet_prefix), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_INET6_PREFIX, .off = _OUT(inet6_prefix), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_DESCR, .off = _OUT(description), .arg_u32 = PF_SOURCELIM_DESCR_LEN, .cb = snl_attr_copy_string },
{ .type = PF_SCL_NENTRIES, .off = _OUT(nentries), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 },
{ .type = PF_SCL_ADDR_ALLOCS, .off = _OUT(addrallocs), .cb = snl_attr_get_uint64 },
{ .type = PF_SCL_ADDR_NOMEM, .off = _OUT(addrnomem), .cb = snl_attr_get_uint64 },
{ .type = PF_SCL_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 },
{ .type = PF_SCL_ADDRLIMITED, .off = _OUT(addrlimited), .cb = snl_attr_get_uint64 },
{ .type = PF_SCL_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 },
{ .type = PF_SCL_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 },
};
#undef _OUT
SNL_DECLARE_PARSER(sourcelim_parser, struct genlmsghdr, snl_f_p_empty, ap_sourcelim);
int
pfctl_source_limiter_add(struct pfctl_handle *h, struct pfctl_source_lim *lim)
{
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_SOURCE_LIMITER_ADD);
snl_add_msg_attr_u32(&nw, PF_SCL_TICKET, lim->ticket);
snl_add_msg_attr_string(&nw, PF_SCL_NAME, lim->name);
snl_add_msg_attr_u32(&nw, PF_SCL_ID, lim->id);
snl_add_msg_attr_u32(&nw, PF_SCL_ENTRIES, lim->entries);
snl_add_msg_attr_u32(&nw, PF_SCL_LIMIT, lim->limit);
snl_add_msg_attr_limit_rate(&nw, PF_SCL_RATE, &lim->rate);
snl_add_msg_attr_string(&nw, PF_SCL_OVERLOAD_TBL_NAME, lim->overload_tblname);
snl_add_msg_attr_u32(&nw, PF_SCL_OVERLOAD_HIGH_WM, lim->overload_hwm);
snl_add_msg_attr_u32(&nw, PF_SCL_OVERLOAD_LOW_WM, lim->overload_lwm);
snl_add_msg_attr_u32(&nw, PF_SCL_INET_PREFIX, lim->inet_prefix);
snl_add_msg_attr_u32(&nw, PF_SCL_INET6_PREFIX, lim->inet6_prefix);
snl_add_msg_attr_string(&nw, PF_SCL_DESCR, lim->description);
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, &sourcelim_parser, &lim))
continue;
}
return (e.error);
}
static int
_pfctl_source_limiter_get(struct pfctl_handle *h, int cmd, struct pfctl_source_lim *lim)
{
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, cmd);
snl_add_msg_attr_u32(&nw, PF_SCL_ID, lim->id);
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, &sourcelim_parser, lim))
continue;
}
return (e.error);
}
int
pfctl_source_limiter_get(struct pfctl_handle *h, struct pfctl_source_lim *lim)
{
return (_pfctl_source_limiter_get(h, PFNL_CMD_SOURCE_LIMITER_GET, lim));
}
int
pfctl_source_limiter_nget(struct pfctl_handle *h, struct pfctl_source_lim *lim)
{
return (_pfctl_source_limiter_get(h, PFNL_CMD_SOURCE_LIMITER_NGET, lim));
}
#define _OUT(_field) offsetof(struct pfctl_source, _field)
static struct snl_attr_parser ap_source[] = {
{ .type = PF_SRC_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 },
{ .type = PF_SRC_RDOMAIN, .off = _OUT(rdomain), .cb = snl_attr_get_uint32 },
{ .type = PF_SRC_ADDR, .off = _OUT(addr), .cb = snl_attr_get_in6_addr },
{ .type = PF_SRC_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 },
{ .type = PF_SRC_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 },
{ .type = PF_SRC_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 },
{ .type = PF_SRC_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 },
{ .type = PF_SRC_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 },
{ .type = PF_SRC_INET_PREFIX, .off = _OUT(inet_prefix), .cb = snl_attr_get_uint32 },
{. type = PF_SRC_INET6_PREFIX, .off = _OUT(inet6_prefix), .cb = snl_attr_get_uint32 },
};
#undef _OUT
SNL_DECLARE_PARSER(source_parser, struct genlmsghdr, snl_f_p_empty, ap_source);
int
pfctl_source_get(struct pfctl_handle *h, int id, pfctl_get_source_fn fn, void *arg)
{
struct snl_writer nw;
struct snl_errmsg_data e = {};
struct nlmsghdr *hdr;
uint32_t seq_id;
int family_id, error;
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_SOURCE_NGET);
snl_add_msg_attr_u32(&nw, PF_SRC_ID, id);
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) {
struct pfctl_source src;
if (! snl_parse_nlmsg(&h->ss, hdr, &source_parser, &src))
continue;
error = fn(&src, arg);
if (error != 0) {
e.error = error;
break;
}
}
return (e.error);
}
int
pfctl_source_clear(struct pfctl_handle *h, struct pfctl_source_clear *kill)
{
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_SOURCE_CLEAR);
snl_add_msg_attr_string(&nw, PF_SC_NAME, kill->name);
snl_add_msg_attr_u32(&nw, PF_SC_ID, kill->id);
snl_add_msg_attr_u32(&nw, PF_SC_RDOMAIN, kill->rdomain);
snl_add_msg_attr_u8(&nw, PF_SC_AF, kill->af);
snl_add_msg_attr_ip6(&nw, PF_SC_ADDR, &kill->addr.v6);
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_hdr_parser *all_parsers[] = {
&begin_addrs_parser,
&clear_states_parser,
&clr_addrs_parser,
&creator_parser,
&get_addr_parser,
&get_addrs_parser,
&get_limit_parser,
&get_timeout_parser,
&getrule_parser,
&getrules_parser,
&getstatus_parser,
&nadd_parser,
&natlook_parser,
&ndel_parser,
&ruleset_parser,
&skey_parser,
&source_parser,
&sourcelim_parser,
&speer_parser,
&srcnode_parser,
&state_parser,
&statelim_parser,
&table_add_addr_parser,
&table_astats_parser,
&table_del_addr_parser,
&table_get_addr_parser,
&table_set_addr_parser,
&tstats_clr_parser,
&tstats_parser,
};
static void
_pfctl_verify_parsers(void)
{
SNL_VERIFY_PARSERS(all_parsers);
}
