diff --git a/sys/netpfil/pf/pf_nv.c b/sys/netpfil/pf/pf_nv.c index 73f0c55a7a21..933603066e21 100644 --- a/sys/netpfil/pf/pf_nv.c +++ b/sys/netpfil/pf/pf_nv.c @@ -1,978 +1,988 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2021 Rubicon Communications, LLC (Netgate) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include __FBSDID("$FreeBSD$"); #include "opt_inet.h" #include "opt_inet6.h" #include #include #include #include #include #include #define PF_NV_IMPL_UINT(fnname, type, max) \ int \ pf_nv ## fnname ## _opt(const nvlist_t *nvl, const char *name, \ type *val, type dflt) \ { \ uint64_t raw; \ if (! nvlist_exists_number(nvl, name)) { \ *val = dflt; \ return (0); \ } \ raw = nvlist_get_number(nvl, name); \ if (raw > max) \ return (ERANGE); \ *val = (type)raw; \ return (0); \ } \ int \ pf_nv ## fnname(const nvlist_t *nvl, const char *name, type *val) \ { \ uint64_t raw; \ if (! nvlist_exists_number(nvl, name)) \ return (EINVAL); \ raw = nvlist_get_number(nvl, name); \ if (raw > max) \ return (ERANGE); \ *val = (type)raw; \ return (0); \ } \ int \ pf_nv ## fnname ## _array(const nvlist_t *nvl, const char *name, \ type *array, size_t maxelems, size_t *nelems) \ { \ const uint64_t *n; \ size_t nitems; \ bzero(array, sizeof(type) * maxelems); \ if (! nvlist_exists_number_array(nvl, name)) \ return (EINVAL); \ n = nvlist_get_number_array(nvl, name, &nitems); \ if (nitems != maxelems) \ return (E2BIG); \ if (nelems != NULL) \ *nelems = nitems; \ for (size_t i = 0; i < nitems; i++) { \ if (n[i] > max) \ return (ERANGE); \ array[i] = (type)n[i]; \ } \ return (0); \ } \ void \ pf_ ## fnname ## _array_nv(nvlist_t *nvl, const char *name, \ const type *numbers, size_t count) \ { \ uint64_t tmp; \ for (size_t i = 0; i < count; i++) { \ tmp = numbers[i]; \ nvlist_append_number_array(nvl, name, tmp); \ } \ } +int +pf_nvbool(const nvlist_t *nvl, const char *name, bool *val) +{ + if (! nvlist_exists_bool(nvl, name)) + return (EINVAL); + + *val = nvlist_get_bool(nvl, name); + + return (0); +} + int pf_nvbinary(const nvlist_t *nvl, const char *name, void *data, size_t expected_size) { const uint8_t *nvdata; size_t len; bzero(data, expected_size); if (! nvlist_exists_binary(nvl, name)) return (EINVAL); nvdata = (const uint8_t *)nvlist_get_binary(nvl, name, &len); if (len > expected_size) return (EINVAL); memcpy(data, nvdata, len); return (0); } PF_NV_IMPL_UINT(uint8, uint8_t, UINT8_MAX); PF_NV_IMPL_UINT(uint16, uint16_t, UINT16_MAX); PF_NV_IMPL_UINT(uint32, uint32_t, UINT32_MAX); PF_NV_IMPL_UINT(uint64, uint64_t, UINT64_MAX); int pf_nvint(const nvlist_t *nvl, const char *name, int *val) { int64_t raw; if (! nvlist_exists_number(nvl, name)) return (EINVAL); raw = nvlist_get_number(nvl, name); if (raw > INT_MAX || raw < INT_MIN) return (ERANGE); *val = (int)raw; return (0); } int pf_nvstring(const nvlist_t *nvl, const char *name, char *str, size_t maxlen) { int ret; if (! nvlist_exists_string(nvl, name)) return (EINVAL); ret = strlcpy(str, nvlist_get_string(nvl, name), maxlen); if (ret >= maxlen) return (EINVAL); return (0); } static int pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *paddr) { return (pf_nvbinary(nvl, "addr", paddr, sizeof(*paddr))); } static nvlist_t * pf_addr_to_nvaddr(const struct pf_addr *paddr) { nvlist_t *nvl; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); nvlist_add_binary(nvl, "addr", paddr, sizeof(*paddr)); return (nvl); } static int pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) { int error = 0; bzero(mape, sizeof(*mape)); PFNV_CHK(pf_nvuint8(nvl, "offset", &mape->offset)); PFNV_CHK(pf_nvuint8(nvl, "psidlen", &mape->psidlen)); PFNV_CHK(pf_nvuint16(nvl, "psid", &mape->psid)); errout: return (error); } static nvlist_t * pf_mape_to_nvmape(const struct pf_mape_portset *mape) { nvlist_t *nvl; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); nvlist_add_number(nvl, "offset", mape->offset); nvlist_add_number(nvl, "psidlen", mape->psidlen); nvlist_add_number(nvl, "psid", mape->psid); return (nvl); } static int pf_nvpool_to_pool(const nvlist_t *nvl, struct pf_kpool *kpool) { int error = 0; bzero(kpool, sizeof(*kpool)); PFNV_CHK(pf_nvbinary(nvl, "key", &kpool->key, sizeof(kpool->key))); if (nvlist_exists_nvlist(nvl, "counter")) { PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &kpool->counter)); } PFNV_CHK(pf_nvint(nvl, "tblidx", &kpool->tblidx)); PFNV_CHK(pf_nvuint16_array(nvl, "proxy_port", kpool->proxy_port, 2, NULL)); PFNV_CHK(pf_nvuint8(nvl, "opts", &kpool->opts)); if (nvlist_exists_nvlist(nvl, "mape")) { PFNV_CHK(pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &kpool->mape)); } errout: return (error); } static nvlist_t * pf_pool_to_nvpool(const struct pf_kpool *pool) { nvlist_t *nvl; nvlist_t *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); nvlist_add_binary(nvl, "key", &pool->key, sizeof(pool->key)); tmp = pf_addr_to_nvaddr(&pool->counter); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "counter", tmp); nvlist_destroy(tmp); nvlist_add_number(nvl, "tblidx", pool->tblidx); pf_uint16_array_nv(nvl, "proxy_port", pool->proxy_port, 2); nvlist_add_number(nvl, "opts", pool->opts); tmp = pf_mape_to_nvmape(&pool->mape); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "mape", tmp); nvlist_destroy(tmp); return (nvl); error: nvlist_destroy(nvl); return (NULL); } static int pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) { int error = 0; bzero(addr, sizeof(*addr)); PFNV_CHK(pf_nvuint8(nvl, "type", &addr->type)); PFNV_CHK(pf_nvuint8(nvl, "iflags", &addr->iflags)); if (addr->type == PF_ADDR_DYNIFTL) PFNV_CHK(pf_nvstring(nvl, "ifname", addr->v.ifname, sizeof(addr->v.ifname))); if (addr->type == PF_ADDR_TABLE) PFNV_CHK(pf_nvstring(nvl, "tblname", addr->v.tblname, sizeof(addr->v.tblname))); if (! nvlist_exists_nvlist(nvl, "addr")) return (EINVAL); PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr)); if (! nvlist_exists_nvlist(nvl, "mask")) return (EINVAL); PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask)); switch (addr->type) { case PF_ADDR_DYNIFTL: case PF_ADDR_TABLE: case PF_ADDR_RANGE: case PF_ADDR_ADDRMASK: case PF_ADDR_NOROUTE: case PF_ADDR_URPFFAILED: break; default: return (EINVAL); } errout: return (error); } static nvlist_t * pf_addr_wrap_to_nvaddr_wrap(const struct pf_addr_wrap *addr) { nvlist_t *nvl; nvlist_t *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); 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); tmp = pf_addr_to_nvaddr(&addr->v.a.addr); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "addr", tmp); nvlist_destroy(tmp); tmp = pf_addr_to_nvaddr(&addr->v.a.mask); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "mask", tmp); nvlist_destroy(tmp); return (nvl); error: nvlist_destroy(nvl); return (NULL); } static int pf_validate_op(uint8_t op) { switch (op) { case PF_OP_NONE: case PF_OP_IRG: case PF_OP_EQ: case PF_OP_NE: case PF_OP_LT: case PF_OP_LE: case PF_OP_GT: case PF_OP_GE: case PF_OP_XRG: case PF_OP_RRG: break; default: return (EINVAL); } return (0); } static int pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) { int error = 0; if (! nvlist_exists_nvlist(nvl, "addr")) return (EINVAL); PFNV_CHK(pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr)); PFNV_CHK(pf_nvuint16_array(nvl, "port", addr->port, 2, NULL)); PFNV_CHK(pf_nvuint8(nvl, "neg", &addr->neg)); PFNV_CHK(pf_nvuint8(nvl, "port_op", &addr->port_op)); PFNV_CHK(pf_validate_op(addr->port_op)); errout: return (error); } static nvlist_t * pf_rule_addr_to_nvrule_addr(const struct pf_rule_addr *addr) { nvlist_t *nvl; nvlist_t *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); tmp = pf_addr_wrap_to_nvaddr_wrap(&addr->addr); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "addr", tmp); nvlist_destroy(tmp); pf_uint16_array_nv(nvl, "port", addr->port, 2); nvlist_add_number(nvl, "neg", addr->neg); nvlist_add_number(nvl, "port_op", addr->port_op); return (nvl); error: nvlist_destroy(nvl); return (NULL); } static int pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) { int error = 0; bzero(uid, sizeof(*uid)); PFNV_CHK(pf_nvuint32_array(nvl, "uid", uid->uid, 2, NULL)); PFNV_CHK(pf_nvuint8(nvl, "op", &uid->op)); PFNV_CHK(pf_validate_op(uid->op)); errout: return (error); } static nvlist_t * pf_rule_uid_to_nvrule_uid(const struct pf_rule_uid *uid) { nvlist_t *nvl; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); pf_uint32_array_nv(nvl, "uid", uid->uid, 2); nvlist_add_number(nvl, "op", uid->op); return (nvl); } static int pf_nvrule_gid_to_rule_gid(const nvlist_t *nvl, struct pf_rule_gid *gid) { /* Cheat a little. These stucts are the same, other than the name of * the first field. */ return (pf_nvrule_uid_to_rule_uid(nvl, (struct pf_rule_uid *)gid)); } int pf_check_rule_addr(const struct pf_rule_addr *addr) { switch (addr->addr.type) { case PF_ADDR_ADDRMASK: case PF_ADDR_NOROUTE: case PF_ADDR_DYNIFTL: case PF_ADDR_TABLE: case PF_ADDR_URPFFAILED: case PF_ADDR_RANGE: break; default: return (EINVAL); } if (addr->addr.p.dyn != NULL) { return (EINVAL); } return (0); } int pf_nvrule_to_krule(const nvlist_t *nvl, struct pf_krule *rule) { int error = 0; #define ERROUT(x) ERROUT_FUNCTION(errout, x) PFNV_CHK(pf_nvuint32(nvl, "nr", &rule->nr)); if (! nvlist_exists_nvlist(nvl, "src")) ERROUT(EINVAL); error = pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); if (error != 0) ERROUT(error); if (! nvlist_exists_nvlist(nvl, "dst")) ERROUT(EINVAL); PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst)); if (nvlist_exists_string(nvl, "label")) { PFNV_CHK(pf_nvstring(nvl, "label", rule->label[0], sizeof(rule->label[0]))); } else if (nvlist_exists_string_array(nvl, "labels")) { const char *const *strs; size_t items; int ret; strs = nvlist_get_string_array(nvl, "labels", &items); if (items > PF_RULE_MAX_LABEL_COUNT) ERROUT(E2BIG); for (size_t i = 0; i < items; i++) { ret = strlcpy(rule->label[i], strs[i], sizeof(rule->label[0])); if (ret >= sizeof(rule->label[0])) ERROUT(E2BIG); } } PFNV_CHK(pf_nvstring(nvl, "ifname", rule->ifname, sizeof(rule->ifname))); PFNV_CHK(pf_nvstring(nvl, "qname", rule->qname, sizeof(rule->qname))); PFNV_CHK(pf_nvstring(nvl, "pqname", rule->pqname, sizeof(rule->pqname))); PFNV_CHK(pf_nvstring(nvl, "tagname", rule->tagname, sizeof(rule->tagname))); PFNV_CHK(pf_nvuint16_opt(nvl, "dnpipe", &rule->dnpipe, 0)); PFNV_CHK(pf_nvuint16_opt(nvl, "dnrpipe", &rule->dnrpipe, 0)); PFNV_CHK(pf_nvuint32_opt(nvl, "dnflags", &rule->free_flags, 0)); PFNV_CHK(pf_nvstring(nvl, "match_tagname", rule->match_tagname, sizeof(rule->match_tagname))); PFNV_CHK(pf_nvstring(nvl, "overload_tblname", rule->overload_tblname, sizeof(rule->overload_tblname))); if (! nvlist_exists_nvlist(nvl, "rpool")) ERROUT(EINVAL); PFNV_CHK(pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool)); PFNV_CHK(pf_nvuint32(nvl, "os_fingerprint", &rule->os_fingerprint)); PFNV_CHK(pf_nvint(nvl, "rtableid", &rule->rtableid)); PFNV_CHK(pf_nvuint32_array(nvl, "timeout", rule->timeout, PFTM_MAX, NULL)); PFNV_CHK(pf_nvuint32(nvl, "max_states", &rule->max_states)); PFNV_CHK(pf_nvuint32(nvl, "max_src_nodes", &rule->max_src_nodes)); PFNV_CHK(pf_nvuint32(nvl, "max_src_states", &rule->max_src_states)); PFNV_CHK(pf_nvuint32(nvl, "max_src_conn", &rule->max_src_conn)); PFNV_CHK(pf_nvuint32(nvl, "max_src_conn_rate.limit", &rule->max_src_conn_rate.limit)); PFNV_CHK(pf_nvuint32(nvl, "max_src_conn_rate.seconds", &rule->max_src_conn_rate.seconds)); PFNV_CHK(pf_nvuint32(nvl, "prob", &rule->prob)); PFNV_CHK(pf_nvuint32(nvl, "cuid", &rule->cuid)); PFNV_CHK(pf_nvuint32(nvl, "cpid", &rule->cpid)); PFNV_CHK(pf_nvuint16(nvl, "return_icmp", &rule->return_icmp)); PFNV_CHK(pf_nvuint16(nvl, "return_icmp6", &rule->return_icmp6)); PFNV_CHK(pf_nvuint16(nvl, "max_mss", &rule->max_mss)); PFNV_CHK(pf_nvuint16(nvl, "scrub_flags", &rule->scrub_flags)); if (! nvlist_exists_nvlist(nvl, "uid")) ERROUT(EINVAL); PFNV_CHK(pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid)); if (! nvlist_exists_nvlist(nvl, "gid")) ERROUT(EINVAL); PFNV_CHK(pf_nvrule_gid_to_rule_gid(nvlist_get_nvlist(nvl, "gid"), &rule->gid)); PFNV_CHK(pf_nvuint32(nvl, "rule_flag", &rule->rule_flag)); PFNV_CHK(pf_nvuint8(nvl, "action", &rule->action)); PFNV_CHK(pf_nvuint8(nvl, "direction", &rule->direction)); PFNV_CHK(pf_nvuint8(nvl, "log", &rule->log)); PFNV_CHK(pf_nvuint8(nvl, "logif", &rule->logif)); PFNV_CHK(pf_nvuint8(nvl, "quick", &rule->quick)); PFNV_CHK(pf_nvuint8(nvl, "ifnot", &rule->ifnot)); PFNV_CHK(pf_nvuint8(nvl, "match_tag_not", &rule->match_tag_not)); PFNV_CHK(pf_nvuint8(nvl, "natpass", &rule->natpass)); PFNV_CHK(pf_nvuint8(nvl, "keep_state", &rule->keep_state)); PFNV_CHK(pf_nvuint8(nvl, "af", &rule->af)); PFNV_CHK(pf_nvuint8(nvl, "proto", &rule->proto)); PFNV_CHK(pf_nvuint8(nvl, "type", &rule->type)); PFNV_CHK(pf_nvuint8(nvl, "code", &rule->code)); PFNV_CHK(pf_nvuint8(nvl, "flags", &rule->flags)); PFNV_CHK(pf_nvuint8(nvl, "flagset", &rule->flagset)); PFNV_CHK(pf_nvuint8(nvl, "min_ttl", &rule->min_ttl)); PFNV_CHK(pf_nvuint8(nvl, "allow_opts", &rule->allow_opts)); PFNV_CHK(pf_nvuint8(nvl, "rt", &rule->rt)); PFNV_CHK(pf_nvuint8(nvl, "return_ttl", &rule->return_ttl)); PFNV_CHK(pf_nvuint8(nvl, "tos", &rule->tos)); PFNV_CHK(pf_nvuint8(nvl, "set_tos", &rule->set_tos)); PFNV_CHK(pf_nvuint8(nvl, "flush", &rule->flush)); PFNV_CHK(pf_nvuint8(nvl, "prio", &rule->prio)); PFNV_CHK(pf_nvuint8_array(nvl, "set_prio", &rule->prio, 2, NULL)); if (nvlist_exists_nvlist(nvl, "divert")) { const nvlist_t *nvldivert = nvlist_get_nvlist(nvl, "divert"); if (! nvlist_exists_nvlist(nvldivert, "addr")) ERROUT(EINVAL); PFNV_CHK(pf_nvaddr_to_addr(nvlist_get_nvlist(nvldivert, "addr"), &rule->divert.addr)); PFNV_CHK(pf_nvuint16(nvldivert, "port", &rule->divert.port)); } /* Validation */ #ifndef INET if (rule->af == AF_INET) ERROUT(EAFNOSUPPORT); #endif /* INET */ #ifndef INET6 if (rule->af == AF_INET6) ERROUT(EAFNOSUPPORT); #endif /* INET6 */ PFNV_CHK(pf_check_rule_addr(&rule->src)); PFNV_CHK(pf_check_rule_addr(&rule->dst)); return (0); #undef ERROUT errout: return (error); } static nvlist_t * pf_divert_to_nvdivert(const struct pf_krule *rule) { nvlist_t *nvl; nvlist_t *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); tmp = pf_addr_to_nvaddr(&rule->divert.addr); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "addr", tmp); nvlist_destroy(tmp); nvlist_add_number(nvl, "port", rule->divert.port); return (nvl); error: nvlist_destroy(nvl); return (NULL); } nvlist_t * pf_krule_to_nvrule(struct pf_krule *rule) { nvlist_t *nvl, *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (nvl); nvlist_add_number(nvl, "nr", rule->nr); tmp = pf_rule_addr_to_nvrule_addr(&rule->src); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "src", tmp); nvlist_destroy(tmp); tmp = pf_rule_addr_to_nvrule_addr(&rule->dst); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "dst", tmp); nvlist_destroy(tmp); for (int i = 0; i < PF_SKIP_COUNT; i++) { nvlist_append_number_array(nvl, "skip", rule->skip[i].ptr ? rule->skip[i].ptr->nr : -1); } for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++) { nvlist_append_string_array(nvl, "labels", rule->label[i]); } nvlist_add_string(nvl, "label", rule->label[0]); nvlist_add_string(nvl, "ifname", rule->ifname); nvlist_add_string(nvl, "qname", rule->qname); nvlist_add_string(nvl, "pqname", rule->pqname); nvlist_add_number(nvl, "dnpipe", rule->dnpipe); nvlist_add_number(nvl, "dnrpipe", rule->dnrpipe); nvlist_add_number(nvl, "dnflags", rule->free_flags); nvlist_add_string(nvl, "tagname", rule->tagname); nvlist_add_string(nvl, "match_tagname", rule->match_tagname); nvlist_add_string(nvl, "overload_tblname", rule->overload_tblname); tmp = pf_pool_to_nvpool(&rule->rpool); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "rpool", tmp); nvlist_destroy(tmp); nvlist_add_number(nvl, "evaluations", pf_counter_u64_fetch(&rule->evaluations)); for (int i = 0; i < 2; i++) { nvlist_append_number_array(nvl, "packets", pf_counter_u64_fetch(&rule->packets[i])); nvlist_append_number_array(nvl, "bytes", pf_counter_u64_fetch(&rule->bytes[i])); } nvlist_add_number(nvl, "os_fingerprint", rule->os_fingerprint); nvlist_add_number(nvl, "rtableid", rule->rtableid); pf_uint32_array_nv(nvl, "timeout", rule->timeout, PFTM_MAX); nvlist_add_number(nvl, "max_states", rule->max_states); nvlist_add_number(nvl, "max_src_nodes", rule->max_src_nodes); nvlist_add_number(nvl, "max_src_states", rule->max_src_states); nvlist_add_number(nvl, "max_src_conn", rule->max_src_conn); nvlist_add_number(nvl, "max_src_conn_rate.limit", rule->max_src_conn_rate.limit); nvlist_add_number(nvl, "max_src_conn_rate.seconds", rule->max_src_conn_rate.seconds); nvlist_add_number(nvl, "qid", rule->qid); nvlist_add_number(nvl, "pqid", rule->pqid); nvlist_add_number(nvl, "prob", rule->prob); nvlist_add_number(nvl, "cuid", rule->cuid); nvlist_add_number(nvl, "cpid", rule->cpid); nvlist_add_number(nvl, "states_cur", counter_u64_fetch(rule->states_cur)); nvlist_add_number(nvl, "states_tot", counter_u64_fetch(rule->states_tot)); nvlist_add_number(nvl, "src_nodes", counter_u64_fetch(rule->src_nodes)); nvlist_add_number(nvl, "return_icmp", rule->return_icmp); nvlist_add_number(nvl, "return_icmp6", rule->return_icmp6); nvlist_add_number(nvl, "max_mss", rule->max_mss); nvlist_add_number(nvl, "scrub_flags", rule->scrub_flags); tmp = pf_rule_uid_to_nvrule_uid(&rule->uid); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "uid", tmp); nvlist_destroy(tmp); tmp = pf_rule_uid_to_nvrule_uid((const struct pf_rule_uid *)&rule->gid); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "gid", tmp); nvlist_destroy(tmp); nvlist_add_number(nvl, "rule_flag", rule->rule_flag); nvlist_add_number(nvl, "action", rule->action); nvlist_add_number(nvl, "direction", rule->direction); nvlist_add_number(nvl, "log", rule->log); nvlist_add_number(nvl, "logif", rule->logif); nvlist_add_number(nvl, "quick", rule->quick); nvlist_add_number(nvl, "ifnot", rule->ifnot); nvlist_add_number(nvl, "match_tag_not", rule->match_tag_not); nvlist_add_number(nvl, "natpass", rule->natpass); nvlist_add_number(nvl, "keep_state", rule->keep_state); nvlist_add_number(nvl, "af", rule->af); nvlist_add_number(nvl, "proto", rule->proto); nvlist_add_number(nvl, "type", rule->type); nvlist_add_number(nvl, "code", rule->code); nvlist_add_number(nvl, "flags", rule->flags); nvlist_add_number(nvl, "flagset", rule->flagset); nvlist_add_number(nvl, "min_ttl", rule->min_ttl); nvlist_add_number(nvl, "allow_opts", rule->allow_opts); nvlist_add_number(nvl, "rt", rule->rt); nvlist_add_number(nvl, "return_ttl", rule->return_ttl); nvlist_add_number(nvl, "tos", rule->tos); nvlist_add_number(nvl, "set_tos", rule->set_tos); nvlist_add_number(nvl, "anchor_relative", rule->anchor_relative); nvlist_add_number(nvl, "anchor_wildcard", rule->anchor_wildcard); nvlist_add_number(nvl, "flush", rule->flush); nvlist_add_number(nvl, "prio", rule->prio); pf_uint8_array_nv(nvl, "set_prio", &rule->prio, 2); tmp = pf_divert_to_nvdivert(rule); if (tmp == NULL) goto error; nvlist_add_nvlist(nvl, "divert", tmp); nvlist_destroy(tmp); return (nvl); error: nvlist_destroy(nvl); return (NULL); } static int pf_nvstate_cmp_to_state_cmp(const nvlist_t *nvl, struct pf_state_cmp *cmp) { int error = 0; bzero(cmp, sizeof(*cmp)); PFNV_CHK(pf_nvuint64(nvl, "id", &cmp->id)); PFNV_CHK(pf_nvuint32(nvl, "creatorid", &cmp->creatorid)); PFNV_CHK(pf_nvuint8(nvl, "direction", &cmp->direction)); errout: return (error); } int pf_nvstate_kill_to_kstate_kill(const nvlist_t *nvl, struct pf_kstate_kill *kill) { int error = 0; bzero(kill, sizeof(*kill)); if (! nvlist_exists_nvlist(nvl, "cmp")) return (EINVAL); PFNV_CHK(pf_nvstate_cmp_to_state_cmp(nvlist_get_nvlist(nvl, "cmp"), &kill->psk_pfcmp)); PFNV_CHK(pf_nvuint8(nvl, "af", &kill->psk_af)); PFNV_CHK(pf_nvint(nvl, "proto", &kill->psk_proto)); if (! nvlist_exists_nvlist(nvl, "src")) return (EINVAL); PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &kill->psk_src)); if (! nvlist_exists_nvlist(nvl, "dst")) return (EINVAL); PFNV_CHK(pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &kill->psk_dst)); if (nvlist_exists_nvlist(nvl, "rt_addr")) { PFNV_CHK(pf_nvrule_addr_to_rule_addr( nvlist_get_nvlist(nvl, "rt_addr"), &kill->psk_rt_addr)); } PFNV_CHK(pf_nvstring(nvl, "ifname", kill->psk_ifname, sizeof(kill->psk_ifname))); PFNV_CHK(pf_nvstring(nvl, "label", kill->psk_label, sizeof(kill->psk_label))); - if (nvlist_exists_bool(nvl, "kill_match")) - kill->psk_kill_match = nvlist_get_bool(nvl, "kill_match"); + PFNV_CHK(pf_nvbool(nvl, "kill_match", &kill->psk_kill_match)); errout: return (error); } static nvlist_t * pf_state_key_to_nvstate_key(const struct pf_state_key *key) { nvlist_t *nvl, *tmp; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); for (int i = 0; i < 2; i++) { tmp = pf_addr_to_nvaddr(&key->addr[i]); if (tmp == NULL) goto errout; nvlist_append_nvlist_array(nvl, "addr", tmp); nvlist_destroy(tmp); nvlist_append_number_array(nvl, "port", key->port[i]); } nvlist_add_number(nvl, "af", key->af); nvlist_add_number(nvl, "proto", key->proto); return (nvl); errout: nvlist_destroy(nvl); return (NULL); } static nvlist_t * pf_state_peer_to_nvstate_peer(const struct pf_state_peer *peer) { nvlist_t *nvl; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); nvlist_add_number(nvl, "seqlo", peer->seqlo); nvlist_add_number(nvl, "seqhi", peer->seqhi); nvlist_add_number(nvl, "seqdiff", peer->seqdiff); nvlist_add_number(nvl, "state", peer->state); nvlist_add_number(nvl, "wscale", peer->wscale); return (nvl); } nvlist_t * pf_state_to_nvstate(const struct pf_kstate *s) { nvlist_t *nvl, *tmp; uint32_t expire, flags = 0; nvl = nvlist_create(0); if (nvl == NULL) return (NULL); nvlist_add_number(nvl, "id", s->id); nvlist_add_string(nvl, "ifname", s->kif->pfik_name); nvlist_add_string(nvl, "orig_ifname", s->orig_kif->pfik_name); tmp = pf_state_key_to_nvstate_key(s->key[PF_SK_STACK]); if (tmp == NULL) goto errout; nvlist_add_nvlist(nvl, "stack_key", tmp); nvlist_destroy(tmp); tmp = pf_state_key_to_nvstate_key(s->key[PF_SK_WIRE]); if (tmp == NULL) goto errout; nvlist_add_nvlist(nvl, "wire_key", tmp); nvlist_destroy(tmp); tmp = pf_state_peer_to_nvstate_peer(&s->src); if (tmp == NULL) goto errout; nvlist_add_nvlist(nvl, "src", tmp); nvlist_destroy(tmp); tmp = pf_state_peer_to_nvstate_peer(&s->dst); if (tmp == NULL) goto errout; nvlist_add_nvlist(nvl, "dst", tmp); nvlist_destroy(tmp); tmp = pf_addr_to_nvaddr(&s->rt_addr); if (tmp == NULL) goto errout; nvlist_add_nvlist(nvl, "rt_addr", tmp); nvlist_destroy(tmp); nvlist_add_number(nvl, "rule", s->rule.ptr ? s->rule.ptr->nr : -1); nvlist_add_number(nvl, "anchor", s->anchor.ptr ? s->anchor.ptr->nr : -1); nvlist_add_number(nvl, "nat_rule", s->nat_rule.ptr ? s->nat_rule.ptr->nr : -1); nvlist_add_number(nvl, "creation", s->creation); expire = pf_state_expires(s); if (expire <= time_uptime) expire = 0; else expire = expire - time_uptime; nvlist_add_number(nvl, "expire", expire); for (int i = 0; i < 2; i++) { nvlist_append_number_array(nvl, "packets", s->packets[i]); nvlist_append_number_array(nvl, "bytes", s->bytes[i]); } nvlist_add_number(nvl, "creatorid", s->creatorid); nvlist_add_number(nvl, "direction", s->direction); nvlist_add_number(nvl, "state_flags", s->state_flags); if (s->src_node) flags |= PFSYNC_FLAG_SRCNODE; if (s->nat_src_node) flags |= PFSYNC_FLAG_NATSRCNODE; nvlist_add_number(nvl, "sync_flags", flags); return (nvl); errout: nvlist_destroy(nvl); return (NULL); } diff --git a/sys/netpfil/pf/pf_nv.h b/sys/netpfil/pf/pf_nv.h index 8a46aae326a6..cb6e75cb7008 100644 --- a/sys/netpfil/pf/pf_nv.h +++ b/sys/netpfil/pf/pf_nv.h @@ -1,86 +1,87 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2021 Rubicon Communications, LLC (Netgate) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #ifndef _PF_NV_H_ #define _PF_NV_H_ #include #include #include #include #include #include #include SDT_PROBE_DECLARE(pf, ioctl, function, error); SDT_PROBE_DECLARE(pf, ioctl, nvchk, error); #define ERROUT_FUNCTION(target, x) \ do { \ error = (x); \ SDT_PROBE3(pf, ioctl, function, error, __func__, error, \ __LINE__); \ goto target; \ } while (0) #define PFNV_CHK(x) do { \ error = (x); \ SDT_PROBE2(pf, ioctl, nvchk, error, error, __LINE__); \ if (error != 0) \ goto errout; \ } while (0) #define PF_NV_DEF_UINT(fnname, type, max) \ int pf_nv ## fnname ## _opt(const nvlist_t *, const char *, \ type *, type); \ int pf_nv ## fnname(const nvlist_t *, const char *, type *); \ int pf_nv ## fnname ## _array(const nvlist_t *, const char *, \ type *,size_t, size_t *); \ void pf_ ## fnname ## _array_nv(nvlist_t *, const char *, \ const type *, size_t); PF_NV_DEF_UINT(uint8, uint8_t, UINT8_MAX); PF_NV_DEF_UINT(uint16, uint16_t, UINT16_MAX); PF_NV_DEF_UINT(uint32, uint32_t, UINT32_MAX); PF_NV_DEF_UINT(uint64, uint64_t, UINT64_MAX); +int pf_nvbool(const nvlist_t *, const char *, bool *); int pf_nvbinary(const nvlist_t *, const char *, void *, size_t); int pf_nvint(const nvlist_t *, const char *, int *); int pf_nvstring(const nvlist_t *, const char *, char *, size_t); /* Translation functions */ int pf_check_rule_addr(const struct pf_rule_addr *); nvlist_t *pf_krule_to_nvrule(struct pf_krule *); int pf_nvrule_to_krule(const nvlist_t *, struct pf_krule *); int pf_nvstate_kill_to_kstate_kill(const nvlist_t *, struct pf_kstate_kill *); nvlist_t *pf_state_to_nvstate(const struct pf_kstate *); #endif