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Diffstat (limited to 'sys/net/route/nhgrp_var.h')
| -rw-r--r-- | sys/net/route/nhgrp_var.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sys/net/route/nhgrp_var.h b/sys/net/route/nhgrp_var.h new file mode 100644 index 000000000000..10e0167f47ab --- /dev/null +++ b/sys/net/route/nhgrp_var.h @@ -0,0 +1,72 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 Alexander V. Chernikov + * + * 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. + */ + +/* + * This header file contains private definitions for the nexthop groups. + * + * Header is not intended to be included by the code external to the + * routing subsystem. + */ + +#ifndef _NET_ROUTE_NHGRP_VAR_H_ +#define _NET_ROUTE_NHGRP_VAR_H_ + +/* nhgrp hash definition */ +/* produce hash value for an object */ +#define mpath_hash_obj(_obj) (hash_nhgrp(_obj)) +/* compare two objects */ +#define mpath_cmp(_one, _two) (cmp_nhgrp(_one, _two)) +/* next object accessor */ +#define mpath_next(_obj) (_obj)->nhg_priv_next + +struct nhgrp_priv { + uint32_t nhg_idx; + uint32_t nhg_uidx; + uint8_t nhg_nh_count; /* number of items in nh_weights */ + uint8_t nhg_origin; /* protocol which created the group */ + uint8_t nhg_spare[2]; + u_int nhg_refcount; /* use refcount */ + u_int nhg_linked; /* refcount(9), == 2 if linked to the list */ + struct nh_control *nh_control; /* parent control structure */ + struct nhgrp_priv *nhg_priv_next; + struct nhgrp_object *nhg; + struct epoch_context nhg_epoch_ctx; /* epoch data for nhop */ + struct weightened_nhop nhg_nh_weights[0]; +}; + +#define _NHGRP_PRIV(_src) (&(_src)->nhops[(_src)->nhg_size]) +#define NHGRP_PRIV(_src) ((struct nhgrp_priv *)_NHGRP_PRIV(_src)) +#define NHGRP_PRIV_CONST(_src) ((const struct nhgrp_priv *)_NHGRP_PRIV(_src)) + +/* nhgrp.c */ +bool nhgrp_ctl_alloc_default(struct nh_control *ctl, int malloc_flags); +struct nhgrp_priv *find_nhgrp(struct nh_control *ctl, const struct nhgrp_priv *key); +int link_nhgrp(struct nh_control *ctl, struct nhgrp_priv *grp_priv); +struct nhgrp_priv *unlink_nhgrp(struct nh_control *ctl, struct nhgrp_priv *key); + +#endif + |