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Diffstat (limited to 'usr/src/uts/common/inet/ip_arp.h')
| -rw-r--r-- | usr/src/uts/common/inet/ip_arp.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/usr/src/uts/common/inet/ip_arp.h b/usr/src/uts/common/inet/ip_arp.h new file mode 100644 index 0000000000..2cb7e7a05a --- /dev/null +++ b/usr/src/uts/common/inet/ip_arp.h @@ -0,0 +1,136 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _IP_ARP_H +#define _IP_ARP_H + +/* + * Data-structures and functions related to the IP STREAMS queue that handles + * packets with the SAP set to 0x806 (ETHERTYPE_ARP). + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include <sys/types.h> +#include <inet/ip.h> +#include <inet/ip_ndp.h> +#include <sys/stream.h> + +#ifdef _KERNEL +extern struct streamtab dummymodinfo; + +struct arl_ill_common_s; +/* + * The arl_s structure tracks the state of the associated ARP stream. + */ +typedef struct arl_s { + queue_t *arl_rq; + queue_t *arl_wq; + ip_stack_t *arl_ipst; + zoneid_t arl_zoneid; + cred_t *arl_credp; + ip_m_t arl_media; + struct arl_ill_common_s *arl_common; + int arl_muxid; + uint_t arl_ppa; + t_uscalar_t arl_sap; + t_uscalar_t arl_sap_length; + uint_t arl_phys_addr_length; + char *arl_name; + int arl_name_length; + t_uscalar_t arl_mactype; +#define arl_first_mp_to_free arl_dlpi_deferred + mblk_t *arl_dlpi_deferred; + mblk_t *arl_unbind_mp; + mblk_t *arl_detach_mp; +#define arl_last_mp_to_free arl_detach_mp + uint_t arl_state_flags; + uint_t + arl_needs_attach:1, + arl_dlpi_style_set:1, + arl_pad_to_bit_31:30; + uint_t arl_refcnt; + kcondvar_t arl_cv; + t_uscalar_t arl_dlpi_pending; + kmutex_t arl_lock; + int arl_error; +} arl_t; + +/* + * The arl_ill_common_t structure is a super-structure that contains pointers + * to a pair of matching ill_t, arl_t structures. Given an arl_t (or + * ill_t) the corresponding ill_t (or arl_t) must be obtained by + * synchronizing on the ai_lock, and ensuring that the desired ill/arl + * pointer is non-null, not condemned. The arl_ill_common_t is allocated in + * arl_init() and freed only when both the ill_t and the arl_t structures + * become NULL. + * Lock hierarchy: the ai_lock must be take before the ill_lock or arl_lock. + */ + +typedef struct arl_ill_common_s { + kmutex_t ai_lock; + ill_t *ai_ill; + arl_t *ai_arl; + kcondvar_t ai_ill_unplumb_done; /* sent from ip_modclose() */ +} arl_ill_common_t; + +extern boolean_t arp_no_defense; + +extern struct module_info arp_mod_info; +extern int arp_ll_up(ill_t *); +extern int arp_ll_down(ill_t *); +extern boolean_t arp_announce(ncec_t *); +extern boolean_t arp_probe(ncec_t *); +extern int arp_request(ncec_t *, in_addr_t, ill_t *); +extern void arp_failure(mblk_t *, ip_recv_attr_t *); +extern int arl_wait_for_info_ack(arl_t *); +extern int arl_init(queue_t *, arl_t *); +extern void arl_set_muxid(ill_t *, int); +extern int arl_get_muxid(ill_t *); +extern void arp_send_replumb_conf(ill_t *); +extern void arp_unbind_complete(ill_t *); +extern ill_t *arl_to_ill(arl_t *); +#endif + +#define ARP_RETRANS_TIMER 500 /* time in milliseconds */ + +/* The following are arl_state_flags */ +#define ARL_LL_SUBNET_PENDING 0x01 /* Waiting for DL_INFO_ACK from drv */ +#define ARL_CONDEMNED 0x02 /* No more new ref's to the ILL */ +#define ARL_DL_UNBIND_IN_PROGRESS 0x04 /* UNBIND_REQ is sent */ +#define ARL_LL_BIND_PENDING 0x0020 /* BIND sent */ +#define ARL_LL_UP 0x0040 /* BIND acked */ +#define ARL_LL_DOWN 0x0080 +#define ARL_LL_UNBOUND 0x0100 /* UNBIND acked */ +#define ARL_LL_REPLUMBING 0x0200 /* replumb in progress */ + +#ifdef __cplusplus +} +#endif + +#endif /* _IP_ARP_H */ |