1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. 6 * Copyright (c) 2010-2011 Juniper Networks, Inc. 7 * All rights reserved. 8 * 9 * Portions of this software were developed by Robert N. M. Watson under 10 * contract to Juniper Networks, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef _NETINET_IN_PCB_VAR_H_ 38 #define _NETINET_IN_PCB_VAR_H_ 39 40 /* 41 * Definitions shared between netinet/in_pcb.c and netinet6/in6_pcb.c 42 */ 43 44 VNET_DECLARE(uint32_t, in_pcbhashseed); 45 #define V_in_pcbhashseed VNET(in_pcbhashseed) 46 47 void inp_lock(struct inpcb *inp, const inp_lookup_t lock); 48 void inp_unlock(struct inpcb *inp, const inp_lookup_t lock); 49 int inp_trylock(struct inpcb *inp, const inp_lookup_t lock); 50 bool inp_smr_lock(struct inpcb *, const inp_lookup_t); 51 int in_pcb_lport(struct inpcb *, struct in_addr *, u_short *, 52 struct ucred *, int); 53 int in_pcb_lport_dest(const struct inpcb *inp, struct sockaddr *lsa, 54 u_short *lportp, struct sockaddr *fsa, u_short fport, 55 struct ucred *cred, int lookupflags); 56 struct inpcb *in_pcblookup_local(struct inpcbinfo *, struct in_addr, u_short, 57 int, int, struct ucred *); 58 59 struct inpcbport { 60 struct inpcbhead phd_pcblist; 61 CK_LIST_ENTRY(inpcbport) phd_hash; 62 u_short phd_port; 63 }; 64 65 /* 66 * Load balance groups used for the SO_REUSEPORT_LB socket option. Each group 67 * (or unique address:port combination) can be re-used at most 68 * INPCBLBGROUP_SIZMAX (256) times. The inpcbs are stored in il_inp which 69 * is dynamically resized as processes bind/unbind to that specific group. 70 */ 71 struct inpcblbgroup { 72 CK_LIST_ENTRY(inpcblbgroup) il_list; 73 LIST_HEAD(, inpcb) il_pending; /* PCBs waiting for listen() */ 74 struct epoch_context il_epoch_ctx; 75 struct ucred *il_cred; 76 uint16_t il_lport; /* (c) */ 77 u_char il_vflag; /* (c) */ 78 uint8_t il_numa_domain; 79 int il_fibnum; 80 union in_dependaddr il_dependladdr; /* (c) */ 81 #define il_laddr il_dependladdr.id46_addr.ia46_addr4 82 #define il6_laddr il_dependladdr.id6_addr 83 uint32_t il_inpsiz; /* max count in il_inp[] (h) */ 84 uint32_t il_inpcnt; /* cur count in il_inp[] (h) */ 85 struct inpcb *il_inp[]; /* (h) */ 86 }; 87 88 #endif /* !_NETINET_IN_PCB_VAR_H_ */ 89