diff options
Diffstat (limited to 'sys/netpfil/pf/pf_nl.c')
-rw-r--r-- | sys/netpfil/pf/pf_nl.c | 68 |
1 files changed, 13 insertions, 55 deletions
diff --git a/sys/netpfil/pf/pf_nl.c b/sys/netpfil/pf/pf_nl.c index 381e966eacf1..73933c022ca2 100644 --- a/sys/netpfil/pf/pf_nl.c +++ b/sys/netpfil/pf/pf_nl.c @@ -1256,23 +1256,13 @@ pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt) return (0); } -struct pf_nl_natlook { - sa_family_t af; - uint8_t direction; - uint8_t proto; - struct pf_addr src; - struct pf_addr dst; - uint16_t sport; - uint16_t dport; -}; - -#define _OUT(_field) offsetof(struct pf_nl_natlook, _field) +#define _OUT(_field) offsetof(struct pfioc_natlook, _field) static const struct nlattr_parser nla_p_natlook[] = { { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, - { .type = PF_NL_SRC_ADDR, .off = _OUT(src), .cb = nlattr_get_in6_addr }, - { .type = PF_NL_DST_ADDR, .off = _OUT(dst), .cb = nlattr_get_in6_addr }, + { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = nlattr_get_in6_addr }, + { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = nlattr_get_in6_addr }, { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 }, { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 }, }; @@ -1282,63 +1272,31 @@ NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_empty, nla_p_natlook) static int pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt) { - struct pf_nl_natlook attrs = {}; - struct pf_state_key_cmp key = {}; + struct pfioc_natlook attrs = {}; struct nl_writer *nw = npt->nw; - struct pf_state_key *sk; - struct pf_kstate *state; struct genlmsghdr *ghdr_new; - int error, m = 0; - int sidx, didx; + int error; error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs); if (error != 0) return (error); - if (attrs.proto == 0 || - PF_AZERO(&attrs.src, attrs.af) || - PF_AZERO(&attrs.dst, attrs.af) || - ((attrs.proto == IPPROTO_TCP || attrs.proto == IPPROTO_UDP) && - (attrs.sport == 0 || attrs.dport == 0))) - return (EINVAL); - - /* NATLOOK src and dst are reversed, so reverse sidx/didx */ - sidx = (attrs.direction == PF_IN) ? 1 : 0; - didx = (attrs.direction == PF_IN) ? 0 : 1; - - key.af = attrs.af; - key.proto = attrs.proto; - PF_ACPY(&key.addr[sidx], &attrs.src, attrs.af); - key.port[sidx] = attrs.sport; - PF_ACPY(&key.addr[didx], &attrs.dst, attrs.af); - key.port[didx] = attrs.dport; - - state = pf_find_state_all(&key, attrs.direction, &m); - if (state == NULL) - return (ENOENT); - if (m > 1) { - PF_STATE_UNLOCK(state); - return (E2BIG); - } + error = pf_ioctl_natlook(&attrs); + if (error != 0) + return (error); - if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { - PF_STATE_UNLOCK(state); + if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); - } ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_NATLOOK; ghdr_new->version = 0; ghdr_new->reserved = 0; - sk = state->key[sidx]; - - nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &sk->addr[sidx].v6); - nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &sk->addr[didx].v6); - nlattr_add_u16(nw, PF_NL_SRC_PORT, sk->port[sidx]); - nlattr_add_u16(nw, PF_NL_DST_PORT, sk->port[didx]); - - PF_STATE_UNLOCK(state); + nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &attrs.rsaddr.v6); + nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &attrs.rdaddr.v6); + nlattr_add_u16(nw, PF_NL_SRC_PORT, attrs.rsport); + nlattr_add_u16(nw, PF_NL_DST_PORT, attrs.rdport); if (!nlmsg_end(nw)) { nlmsg_abort(nw); |