/* * 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 (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1990 Mentat Inc. */ #ifndef _INET_IP_H #define _INET_IP_H #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef _KERNEL #include #include #include #include #include #include #include #include #include #ifdef DEBUG #define CONN_DEBUG #endif #define IP_DEBUG /* * The mt-streams(9F) flags for the IP module; put here so that other * "drivers" that are actually IP (e.g., ICMP, UDP) can use the same set * of flags. */ #define IP_DEVMTFLAGS D_MP #endif /* _KERNEL */ #define IP_MOD_NAME "ip" #define IP_DEV_NAME "/dev/ip" #define IP6_DEV_NAME "/dev/ip6" #define UDP_MOD_NAME "udp" #define UDP_DEV_NAME "/dev/udp" #define UDP6_DEV_NAME "/dev/udp6" #define TCP_MOD_NAME "tcp" #define TCP_DEV_NAME "/dev/tcp" #define TCP6_DEV_NAME "/dev/tcp6" #define SCTP_MOD_NAME "sctp" #ifndef _IPADDR_T #define _IPADDR_T typedef uint32_t ipaddr_t; #endif /* Number of bits in an address */ #define IP_ABITS 32 #define IPV4_ABITS IP_ABITS #define IPV6_ABITS 128 #define IP_HOST_MASK (ipaddr_t)0xffffffffU #define IP_CSUM(mp, off, sum) (~ip_cksum(mp, off, sum) & 0xFFFF) #define IP_CSUM_PARTIAL(mp, off, sum) ip_cksum(mp, off, sum) #define IP_BCSUM_PARTIAL(bp, len, sum) bcksum(bp, len, sum) #define ILL_FRAG_HASH_TBL_COUNT ((unsigned int)64) #define ILL_FRAG_HASH_TBL_SIZE (ILL_FRAG_HASH_TBL_COUNT * sizeof (ipfb_t)) #define IPV4_ADDR_LEN 4 #define IP_ADDR_LEN IPV4_ADDR_LEN #define IP_ARP_PROTO_TYPE 0x0800 #define IPV4_VERSION 4 #define IP_VERSION IPV4_VERSION #define IP_SIMPLE_HDR_LENGTH_IN_WORDS 5 #define IP_SIMPLE_HDR_LENGTH 20 #define IP_MAX_HDR_LENGTH 60 #define IP_MAX_OPT_LENGTH (IP_MAX_HDR_LENGTH-IP_SIMPLE_HDR_LENGTH) #define IP_MIN_MTU (IP_MAX_HDR_LENGTH + 8) /* 68 bytes */ /* * XXX IP_MAXPACKET is defined in as well. At some point the * 2 files should be cleaned up to remove all redundant definitions. */ #define IP_MAXPACKET 65535 #define IP_SIMPLE_HDR_VERSION \ ((IP_VERSION << 4) | IP_SIMPLE_HDR_LENGTH_IN_WORDS) #define UDPH_SIZE 8 /* * Constants and type definitions to support IP IOCTL commands */ #define IP_IOCTL (('i'<<8)|'p') #define IP_IOC_IRE_DELETE 4 #define IP_IOC_IRE_DELETE_NO_REPLY 5 #define IP_IOC_RTS_REQUEST 7 /* Common definitions used by IP IOCTL data structures */ typedef struct ipllcmd_s { uint_t ipllc_cmd; uint_t ipllc_name_offset; uint_t ipllc_name_length; } ipllc_t; /* IP IRE Delete Command Structure. */ typedef struct ipid_s { ipllc_t ipid_ipllc; uint_t ipid_ire_type; uint_t ipid_addr_offset; uint_t ipid_addr_length; uint_t ipid_mask_offset; uint_t ipid_mask_length; } ipid_t; #define ipid_cmd ipid_ipllc.ipllc_cmd #ifdef _KERNEL /* * Temporary state for ip options parser. */ typedef struct ipoptp_s { uint8_t *ipoptp_next; /* next option to look at */ uint8_t *ipoptp_end; /* end of options */ uint8_t *ipoptp_cur; /* start of current option */ uint8_t ipoptp_len; /* length of current option */ uint32_t ipoptp_flags; } ipoptp_t; /* * Flag(s) for ipoptp_flags */ #define IPOPTP_ERROR 0x00000001 #endif /* _KERNEL */ /* Controls forwarding of IP packets, set via ipadm(1M)/ndd(1M) */ #define IP_FORWARD_NEVER 0 #define IP_FORWARD_ALWAYS 1 #define WE_ARE_FORWARDING(ipst) ((ipst)->ips_ip_forwarding == IP_FORWARD_ALWAYS) #define IPH_HDR_LENGTH(ipha) \ ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length & 0xF) << 2) #define IPH_HDR_VERSION(ipha) \ ((int)(((ipha_t *)ipha)->ipha_version_and_hdr_length) >> 4) #ifdef _KERNEL /* * IP reassembly macros. We hide starting and ending offsets in b_next and * b_prev of messages on the reassembly queue. The messages are chained using * b_cont. These macros are used in ip_reassemble() so we don't have to see * the ugly casts and assignments. * Note that the offsets are <= 64k i.e. a uint_t is sufficient to represent * them. */ #define IP_REASS_START(mp) ((uint_t)(uintptr_t)((mp)->b_next)) #define IP_REASS_SET_START(mp, u) \ ((mp)->b_next = (mblk_t *)(uintptr_t)(u)) #define IP_REASS_END(mp) ((uint_t)(uintptr_t)((mp)->b_prev)) #define IP_REASS_SET_END(mp, u) \ ((mp)->b_prev = (mblk_t *)(uintptr_t)(u)) #define IP_REASS_COMPLETE 0x1 #define IP_REASS_PARTIAL 0x2 #define IP_REASS_FAILED 0x4 /* * Test to determine whether this is a module instance of IP or a * driver instance of IP. */ #define CONN_Q(q) (WR(q)->q_next == NULL) #define Q_TO_CONN(q) ((conn_t *)(q)->q_ptr) #define Q_TO_TCP(q) (Q_TO_CONN((q))->conn_tcp) #define Q_TO_UDP(q) (Q_TO_CONN((q))->conn_udp) #define Q_TO_ICMP(q) (Q_TO_CONN((q))->conn_icmp) #define Q_TO_RTS(q) (Q_TO_CONN((q))->conn_rts) #define CONNP_TO_WQ(connp) ((connp)->conn_wq) #define CONNP_TO_RQ(connp) ((connp)->conn_rq) #define GRAB_CONN_LOCK(q) { \ if (q != NULL && CONN_Q(q)) \ mutex_enter(&(Q_TO_CONN(q))->conn_lock); \ } #define RELEASE_CONN_LOCK(q) { \ if (q != NULL && CONN_Q(q)) \ mutex_exit(&(Q_TO_CONN(q))->conn_lock); \ } /* * Ref counter macros for ioctls. This provides a guard for TCP to stop * tcp_close from removing the rq/wq whilst an ioctl is still in flight on the * stream. The ioctl could have been queued on e.g. an ipsq. tcp_close will wait * until the ioctlref count is zero before proceeding. * Ideally conn_oper_pending_ill would be used for this purpose. However, in the * case where an ioctl is aborted or interrupted, it can be cleared prematurely. * There are also some race possibilities between ip and the stream head which * can also end up with conn_oper_pending_ill being cleared prematurely. So, to * avoid these situations, we use a dedicated ref counter for ioctls which is * used in addition to and in parallel with the normal conn_ref count. */ #define CONN_INC_IOCTLREF_LOCKED(connp) { \ ASSERT(MUTEX_HELD(&(connp)->conn_lock)); \ DTRACE_PROBE1(conn__inc__ioctlref, conn_t *, (connp)); \ (connp)->conn_ioctlref++; \ mutex_exit(&(connp)->conn_lock); \ } #define CONN_INC_IOCTLREF(connp) { \ mutex_enter(&(connp)->conn_lock); \ CONN_INC_IOCTLREF_LOCKED(connp); \ } #define CONN_DEC_IOCTLREF(connp) { \ mutex_enter(&(connp)->conn_lock); \ DTRACE_PROBE1(conn__dec__ioctlref, conn_t *, (connp)); \ /* Make sure conn_ioctlref will not underflow. */ \ ASSERT((connp)->conn_ioctlref != 0); \ if ((--(connp)->conn_ioctlref == 0) && \ ((connp)->conn_state_flags & CONN_CLOSING)) { \ cv_broadcast(&(connp)->conn_cv); \ } \ mutex_exit(&(connp)->conn_lock); \ } /* * Complete the pending operation. Usually an ioctl. Can also * be a bind or option management request that got enqueued * in an ipsq_t. Called on completion of the operation. */ #define CONN_OPER_PENDING_DONE(connp) { \ mutex_enter(&(connp)->conn_lock); \ (connp)->conn_oper_pending_ill = NULL; \ cv_broadcast(&(connp)->conn_refcv); \ mutex_exit(&(connp)->conn_lock); \ CONN_DEC_REF(connp); \ } /* * Values for squeue switch: */ #define IP_SQUEUE_ENTER_NODRAIN 1 #define IP_SQUEUE_ENTER 2 #define IP_SQUEUE_FILL 3 extern int ip_squeue_flag; /* IP Fragmentation Reassembly Header */ typedef struct ipf_s { struct ipf_s *ipf_hash_next; struct ipf_s **ipf_ptphn; /* Pointer to previous hash next. */ uint32_t ipf_ident; /* Ident to match. */ uint8_t ipf_protocol; /* Protocol to match. */ uchar_t ipf_last_frag_seen : 1; /* Last fragment seen ? */ time_t ipf_timestamp; /* Reassembly start time. */ mblk_t *ipf_mp; /* mblk we live in. */ mblk_t *ipf_tail_mp; /* Frag queue tail pointer. */ int ipf_hole_cnt; /* Number of holes (hard-case). */ int ipf_end; /* Tail end offset (0 -> hard-case). */ uint_t ipf_gen; /* Frag queue generation */ size_t ipf_count; /* Count of bytes used by frag */ uint_t ipf_nf_hdr_len; /* Length of nonfragmented header */ in6_addr_t ipf_v6src; /* IPv6 source address */ in6_addr_t ipf_v6dst; /* IPv6 dest address */ uint_t ipf_prev_nexthdr_offset; /* Offset for nexthdr value */ uint8_t ipf_ecn; /* ECN info for the fragments */ uint8_t ipf_num_dups; /* Number of times dup frags recvd */ uint16_t ipf_checksum_flags; /* Hardware checksum flags */ uint32_t ipf_checksum; /* Partial checksum of fragment data */ } ipf_t; /* * IPv4 Fragments */ #define IS_V4_FRAGMENT(ipha_fragment_offset_and_flags) \ (((ntohs(ipha_fragment_offset_and_flags) & IPH_OFFSET) != 0) || \ ((ntohs(ipha_fragment_offset_and_flags) & IPH_MF) != 0)) #define ipf_src V4_PART_OF_V6(ipf_v6src) #define ipf_dst V4_PART_OF_V6(ipf_v6dst) #endif /* _KERNEL */ /* ICMP types */ #define ICMP_ECHO_REPLY 0 #define ICMP_DEST_UNREACHABLE 3 #define ICMP_SOURCE_QUENCH 4 #define ICMP_REDIRECT 5 #define ICMP_ECHO_REQUEST 8 #define ICMP_ROUTER_ADVERTISEMENT 9 #define ICMP_ROUTER_SOLICITATION 10 #define ICMP_TIME_EXCEEDED 11 #define ICMP_PARAM_PROBLEM 12 #define ICMP_TIME_STAMP_REQUEST 13 #define ICMP_TIME_STAMP_REPLY 14 #define ICMP_INFO_REQUEST 15 #define ICMP_INFO_REPLY 16 #define ICMP_ADDRESS_MASK_REQUEST 17 #define ICMP_ADDRESS_MASK_REPLY 18 /* Evaluates to true if the ICMP type is an ICMP error */ #define ICMP_IS_ERROR(type) ( \ (type) == ICMP_DEST_UNREACHABLE || \ (type) == ICMP_SOURCE_QUENCH || \ (type) == ICMP_TIME_EXCEEDED || \ (type) == ICMP_PARAM_PROBLEM) /* ICMP_TIME_EXCEEDED codes */ #define ICMP_TTL_EXCEEDED 0 #define ICMP_REASSEMBLY_TIME_EXCEEDED 1 /* ICMP_DEST_UNREACHABLE codes */ #define ICMP_NET_UNREACHABLE 0 #define ICMP_HOST_UNREACHABLE 1 #define ICMP_PROTOCOL_UNREACHABLE 2 #define ICMP_PORT_UNREACHABLE 3 #define ICMP_FRAGMENTATION_NEEDED 4 #define ICMP_SOURCE_ROUTE_FAILED 5 #define ICMP_DEST_NET_UNKNOWN 6 #define ICMP_DEST_HOST_UNKNOWN 7 #define ICMP_SRC_HOST_ISOLATED 8 #define ICMP_DEST_NET_UNREACH_ADMIN 9 #define ICMP_DEST_HOST_UNREACH_ADMIN 10 #define ICMP_DEST_NET_UNREACH_TOS 11 #define ICMP_DEST_HOST_UNREACH_TOS 12 /* ICMP Header Structure */ typedef struct icmph_s { uint8_t icmph_type; uint8_t icmph_code; uint16_t icmph_checksum; union { struct { /* ECHO request/response structure */ uint16_t u_echo_ident; uint16_t u_echo_seqnum; } u_echo; struct { /* Destination unreachable structure */ uint16_t u_du_zero; uint16_t u_du_mtu; } u_du; struct { /* Parameter problem structure */ uint8_t u_pp_ptr; uint8_t u_pp_rsvd[3]; } u_pp; struct { /* Redirect structure */ ipaddr_t u_rd_gateway; } u_rd; } icmph_u; } icmph_t; #define icmph_echo_ident icmph_u.u_echo.u_echo_ident #define icmph_echo_seqnum icmph_u.u_echo.u_echo_seqnum #define icmph_du_zero icmph_u.u_du.u_du_zero #define icmph_du_mtu icmph_u.u_du.u_du_mtu #define icmph_pp_ptr icmph_u.u_pp.u_pp_ptr #define icmph_rd_gateway icmph_u.u_rd.u_rd_gateway #define ICMPH_SIZE 8 /* * Minimum length of transport layer header included in an ICMP error * message for it to be considered valid. */ #define ICMP_MIN_TP_HDR_LEN 8 /* Aligned IP header */ typedef struct ipha_s { uint8_t ipha_version_and_hdr_length; uint8_t ipha_type_of_service; uint16_t ipha_length; uint16_t ipha_ident; uint16_t ipha_fragment_offset_and_flags; uint8_t ipha_ttl; uint8_t ipha_protocol; uint16_t ipha_hdr_checksum; ipaddr_t ipha_src; ipaddr_t ipha_dst; } ipha_t; /* * IP Flags * * Some of these constant names are copied for the DTrace IP provider in * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept * in sync. */ #define IPH_DF 0x4000 /* Don't fragment */ #define IPH_MF 0x2000 /* More fragments to come */ #define IPH_OFFSET 0x1FFF /* Where the offset lives */ /* Byte-order specific values */ #ifdef _BIG_ENDIAN #define IPH_DF_HTONS 0x4000 /* Don't fragment */ #define IPH_MF_HTONS 0x2000 /* More fragments to come */ #define IPH_OFFSET_HTONS 0x1FFF /* Where the offset lives */ #else #define IPH_DF_HTONS 0x0040 /* Don't fragment */ #define IPH_MF_HTONS 0x0020 /* More fragments to come */ #define IPH_OFFSET_HTONS 0xFF1F /* Where the offset lives */ #endif /* ECN code points for IPv4 TOS byte and IPv6 traffic class octet. */ #define IPH_ECN_NECT 0x0 /* Not ECN-Capable Transport */ #define IPH_ECN_ECT1 0x1 /* ECN-Capable Transport, ECT(1) */ #define IPH_ECN_ECT0 0x2 /* ECN-Capable Transport, ECT(0) */ #define IPH_ECN_CE 0x3 /* ECN-Congestion Experienced (CE) */ struct ill_s; typedef void ip_v6intfid_func_t(struct ill_s *, in6_addr_t *); typedef void ip_v6mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *); typedef void ip_v4mapinfo_func_t(struct ill_s *, uchar_t *, uchar_t *); /* IP Mac info structure */ typedef struct ip_m_s { t_uscalar_t ip_m_mac_type; /* From */ int ip_m_type; /* From */ t_uscalar_t ip_m_ipv4sap; t_uscalar_t ip_m_ipv6sap; ip_v4mapinfo_func_t *ip_m_v4mapping; ip_v6mapinfo_func_t *ip_m_v6mapping; ip_v6intfid_func_t *ip_m_v6intfid; ip_v6intfid_func_t *ip_m_v6destintfid; } ip_m_t; /* * The following functions attempt to reduce the link layer dependency * of the IP stack. The current set of link specific operations are: * a. map from IPv4 class D (224.0/4) multicast address range or the * IPv6 multicast address range (ff00::/8) to the link layer multicast * address. * b. derive the default IPv6 interface identifier from the interface. * c. derive the default IPv6 destination interface identifier from * the interface (point-to-point only). */ extern void ip_mcast_mapping(struct ill_s *, uchar_t *, uchar_t *); /* ip_m_v6*intfid return void and are never NULL */ #define MEDIA_V6INTFID(ip_m, ill, v6ptr) (ip_m)->ip_m_v6intfid(ill, v6ptr) #define MEDIA_V6DESTINTFID(ip_m, ill, v6ptr) \ (ip_m)->ip_m_v6destintfid(ill, v6ptr) /* Router entry types */ #define IRE_BROADCAST 0x0001 /* Route entry for broadcast address */ #define IRE_DEFAULT 0x0002 /* Route entry for default gateway */ #define IRE_LOCAL 0x0004 /* Route entry for local address */ #define IRE_LOOPBACK 0x0008 /* Route entry for loopback address */ #define IRE_PREFIX 0x0010 /* Route entry for prefix routes */ #ifndef _KERNEL /* Keep so user-level still compiles */ #define IRE_CACHE 0x0020 /* Cached Route entry */ #endif #define IRE_IF_NORESOLVER 0x0040 /* Route entry for local interface */ /* net without any address mapping. */ #define IRE_IF_RESOLVER 0x0080 /* Route entry for local interface */ /* net with resolver. */ #define IRE_HOST 0x0100 /* Host route entry */ /* Keep so user-level still compiles */ #define IRE_HOST_REDIRECT 0x0200 /* only used for T_SVR4_OPTMGMT_REQ */ #define IRE_IF_CLONE 0x0400 /* Per host clone of IRE_IF */ #define IRE_MULTICAST 0x0800 /* Special - not in table */ #define IRE_NOROUTE 0x1000 /* Special - not in table */ #define IRE_INTERFACE (IRE_IF_NORESOLVER | IRE_IF_RESOLVER) #define IRE_IF_ALL (IRE_IF_NORESOLVER | IRE_IF_RESOLVER | \ IRE_IF_CLONE) #define IRE_OFFSUBNET (IRE_DEFAULT | IRE_PREFIX | IRE_HOST) #define IRE_OFFLINK IRE_OFFSUBNET /* * Note that we view IRE_NOROUTE as ONLINK since we can "send" to them without * going through a router; the result of sending will be an error/icmp error. */ #define IRE_ONLINK (IRE_IF_ALL|IRE_LOCAL|IRE_LOOPBACK| \ IRE_BROADCAST|IRE_MULTICAST|IRE_NOROUTE) /* Arguments to ire_flush_cache() */ #define IRE_FLUSH_DELETE 0 #define IRE_FLUSH_ADD 1 #define IRE_FLUSH_GWCHANGE 2 /* * Flags to ire_route_recursive */ #define IRR_NONE 0 #define IRR_ALLOCATE 1 /* OK to allocate IRE_IF_CLONE */ #define IRR_INCOMPLETE 2 /* OK to return incomplete chain */ /* * Open/close synchronization flags. * These are kept in a separate field in the conn and the synchronization * depends on the atomic 32 bit access to that field. */ #define CONN_CLOSING 0x01 /* ip_close waiting for ip_wsrv */ #define CONN_CONDEMNED 0x02 /* conn is closing, no more refs */ #define CONN_INCIPIENT 0x04 /* conn not yet visible, no refs */ #define CONN_QUIESCED 0x08 /* conn is now quiescent */ #define CONN_UPDATE_ILL 0x10 /* conn_update_ill in progress */ /* * Flags for dce_flags field. Specifies which information has been set. * dce_ident is always present, but the other ones are identified by the flags. */ #define DCEF_DEFAULT 0x0001 /* Default DCE - no pmtu or uinfo */ #define DCEF_PMTU 0x0002 /* Different than interface MTU */ #define DCEF_UINFO 0x0004 /* dce_uinfo set */ #define DCEF_TOO_SMALL_PMTU 0x0008 /* Smaller than IPv4/IPv6 MIN */ #ifdef _KERNEL /* * Extra structures need for per-src-addr filtering (IGMPv3/MLDv2) */ #define MAX_FILTER_SIZE 64 typedef struct slist_s { int sl_numsrc; in6_addr_t sl_addr[MAX_FILTER_SIZE]; } slist_t; /* * Following struct is used to maintain retransmission state for * a multicast group. One rtx_state_t struct is an in-line field * of the ilm_t struct; the slist_ts in the rtx_state_t struct are * alloc'd as needed. */ typedef struct rtx_state_s { uint_t rtx_timer; /* retrans timer */ int rtx_cnt; /* retrans count */ int rtx_fmode_cnt; /* retrans count for fmode change */ slist_t *rtx_allow; slist_t *rtx_block; } rtx_state_t; /* * Used to construct list of multicast address records that will be * sent in a single listener report. */ typedef struct mrec_s { struct mrec_s *mrec_next; uint8_t mrec_type; uint8_t mrec_auxlen; /* currently unused */ in6_addr_t mrec_group; slist_t mrec_srcs; } mrec_t; /* Group membership list per upper conn */ /* * We record the multicast information from the socket option in * ilg_ifaddr/ilg_ifindex. This allows rejoining the group in the case when * the ifaddr (or ifindex) disappears and later reappears, potentially on * a different ill. The IPv6 multicast socket options and ioctls all specify * the interface using an ifindex. For IPv4 some socket options/ioctls use * the interface address and others use the index. We record here the method * that was actually used (and leave the other of ilg_ifaddr or ilg_ifindex) * at zero so that we can rejoin the way the application intended. * * We track the ill on which we will or already have joined an ilm using * ilg_ill. When we have succeeded joining the ilm and have a refhold on it * then we set ilg_ilm. Thus intentionally there is a window where ilg_ill is * set and ilg_ilm is not set. This allows clearing ilg_ill as a signal that * the ill is being unplumbed and the ilm should be discarded. * * ilg records the state of multicast memberships of a socket end point. * ilm records the state of multicast memberships with the driver and is * maintained per interface. * * The ilg state is protected by conn_ilg_lock. * The ilg will not be freed until ilg_refcnt drops to zero. */ typedef struct ilg_s { struct ilg_s *ilg_next; struct ilg_s **ilg_ptpn; struct conn_s *ilg_connp; /* Back pointer to get lock */ in6_addr_t ilg_v6group; ipaddr_t ilg_ifaddr; /* For some IPv4 cases */ uint_t ilg_ifindex; /* IPv6 and some other IPv4 cases */ struct ill_s *ilg_ill; /* Where ilm is joined. No refhold */ struct ilm_s *ilg_ilm; /* With ilm_refhold */ uint_t ilg_refcnt; mcast_record_t ilg_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */ slist_t *ilg_filter; boolean_t ilg_condemned; /* Conceptually deleted */ } ilg_t; /* * Multicast address list entry for ill. * ilm_ill is used by IPv4 and IPv6 * * The ilm state (and other multicast state on the ill) is protected by * ill_mcast_lock. Operations that change state on both an ilg and ilm * in addition use ill_mcast_serializer to ensure that we can't have * interleaving between e.g., add and delete operations for the same conn_t, * group, and ill. The ill_mcast_serializer is also used to ensure that * multicast group joins do not occur on an interface that is in the process * of joining an IPMP group. * * The comment below (and for other netstack_t references) refers * to the fact that we only do netstack_hold in particular cases, * such as the references from open endpoints (ill_t and conn_t's * pointers). Internally within IP we rely on IP's ability to cleanup e.g. * ire_t's when an ill goes away. */ typedef struct ilm_s { in6_addr_t ilm_v6addr; int ilm_refcnt; uint_t ilm_timer; /* IGMP/MLD query resp timer, in msec */ struct ilm_s *ilm_next; /* Linked list for each ill */ uint_t ilm_state; /* state of the membership */ struct ill_s *ilm_ill; /* Back pointer to ill - ill_ilm_cnt */ zoneid_t ilm_zoneid; int ilm_no_ilg_cnt; /* number of joins w/ no ilg */ mcast_record_t ilm_fmode; /* MODE_IS_INCLUDE/MODE_IS_EXCLUDE */ slist_t *ilm_filter; /* source filter list */ slist_t *ilm_pendsrcs; /* relevant src addrs for pending req */ rtx_state_t ilm_rtx; /* SCR retransmission state */ ipaddr_t ilm_ifaddr; /* For IPv4 netstat */ ip_stack_t *ilm_ipst; /* Does not have a netstack_hold */ } ilm_t; #define ilm_addr V4_PART_OF_V6(ilm_v6addr) /* * Soft reference to an IPsec SA. * * On relative terms, conn's can be persistent (living as long as the * processes which create them), while SA's are ephemeral (dying when * they hit their time-based or byte-based lifetimes). * * We could hold a hard reference to an SA from an ipsec_latch_t, * but this would cause expired SA's to linger for a potentially * unbounded time. * * Instead, we remember the hash bucket number and bucket generation * in addition to the pointer. The bucket generation is incremented on * each deletion. */ typedef struct ipsa_ref_s { struct ipsa_s *ipsr_sa; struct isaf_s *ipsr_bucket; uint64_t ipsr_gen; } ipsa_ref_t; /* * IPsec "latching" state. * * In the presence of IPsec policy, fully-bound conn's bind a connection * to more than just the 5-tuple, but also a specific IPsec action and * identity-pair. * The identity pair is accessed from both the receive and transmit side * hence it is maintained in the ipsec_latch_t structure. conn_latch and * ixa_ipsec_latch points to it. * The policy and actions are stored in conn_latch_in_policy and * conn_latch_in_action for the inbound side, and in ixa_ipsec_policy and * ixa_ipsec_action for the transmit side. * * As an optimization, we also cache soft references to IPsec SA's in * ip_xmit_attr_t so that we can fast-path around most of the work needed for * outbound IPsec SA selection. */ typedef struct ipsec_latch_s { kmutex_t ipl_lock; uint32_t ipl_refcnt; struct ipsid_s *ipl_local_cid; struct ipsid_s *ipl_remote_cid; unsigned int ipl_ids_latched : 1, ipl_pad_to_bit_31 : 31; } ipsec_latch_t; #define IPLATCH_REFHOLD(ipl) { \ atomic_add_32(&(ipl)->ipl_refcnt, 1); \ ASSERT((ipl)->ipl_refcnt != 0); \ } #define IPLATCH_REFRELE(ipl) { \ ASSERT((ipl)->ipl_refcnt != 0); \ membar_exit(); \ if (atomic_add_32_nv(&(ipl)->ipl_refcnt, -1) == 0) \ iplatch_free(ipl); \ } /* * peer identity structure. */ typedef struct conn_s conn_t; /* * This is used to match an inbound/outbound datagram with policy. */ typedef struct ipsec_selector { in6_addr_t ips_local_addr_v6; in6_addr_t ips_remote_addr_v6; uint16_t ips_local_port; uint16_t ips_remote_port; uint8_t ips_icmp_type; uint8_t ips_icmp_code; uint8_t ips_protocol; uint8_t ips_isv4 : 1, ips_is_icmp_inv_acq: 1; } ipsec_selector_t; /* * Note that we put v4 addresses in the *first* 32-bit word of the * selector rather than the last to simplify the prefix match/mask code * in spd.c */ #define ips_local_addr_v4 ips_local_addr_v6.s6_addr32[0] #define ips_remote_addr_v4 ips_remote_addr_v6.s6_addr32[0] /* Values used in IP by IPSEC Code */ #define IPSEC_OUTBOUND B_TRUE #define IPSEC_INBOUND B_FALSE /* * There are two variants in policy failures. The packet may come in * secure when not needed (IPSEC_POLICY_???_NOT_NEEDED) or it may not * have the desired level of protection (IPSEC_POLICY_MISMATCH). */ #define IPSEC_POLICY_NOT_NEEDED 0 #define IPSEC_POLICY_MISMATCH 1 #define IPSEC_POLICY_AUTH_NOT_NEEDED 2 #define IPSEC_POLICY_ENCR_NOT_NEEDED 3 #define IPSEC_POLICY_SE_NOT_NEEDED 4 #define IPSEC_POLICY_MAX 5 /* Always max + 1. */ /* * Check with IPSEC inbound policy if * * 1) per-socket policy is present - indicated by conn_in_enforce_policy. * 2) Or if we have not cached policy on the conn and the global policy is * non-empty. */ #define CONN_INBOUND_POLICY_PRESENT(connp, ipss) \ ((connp)->conn_in_enforce_policy || \ (!((connp)->conn_policy_cached) && \ (ipss)->ipsec_inbound_v4_policy_present)) #define CONN_INBOUND_POLICY_PRESENT_V6(connp, ipss) \ ((connp)->conn_in_enforce_policy || \ (!(connp)->conn_policy_cached && \ (ipss)->ipsec_inbound_v6_policy_present)) #define CONN_OUTBOUND_POLICY_PRESENT(connp, ipss) \ ((connp)->conn_out_enforce_policy || \ (!((connp)->conn_policy_cached) && \ (ipss)->ipsec_outbound_v4_policy_present)) #define CONN_OUTBOUND_POLICY_PRESENT_V6(connp, ipss) \ ((connp)->conn_out_enforce_policy || \ (!(connp)->conn_policy_cached && \ (ipss)->ipsec_outbound_v6_policy_present)) /* * Information cached in IRE for upper layer protocol (ULP). */ typedef struct iulp_s { boolean_t iulp_set; /* Is any metric set? */ uint32_t iulp_ssthresh; /* Slow start threshold (TCP). */ clock_t iulp_rtt; /* Guestimate in millisecs. */ clock_t iulp_rtt_sd; /* Cached value of RTT variance. */ uint32_t iulp_spipe; /* Send pipe size. */ uint32_t iulp_rpipe; /* Receive pipe size. */ uint32_t iulp_rtomax; /* Max round trip timeout. */ uint32_t iulp_sack; /* Use SACK option (TCP)? */ uint32_t iulp_mtu; /* Setable with routing sockets */ uint32_t iulp_tstamp_ok : 1, /* Use timestamp option (TCP)? */ iulp_wscale_ok : 1, /* Use window scale option (TCP)? */ iulp_ecn_ok : 1, /* Enable ECN (for TCP)? */ iulp_pmtud_ok : 1, /* Enable PMTUd? */ /* These three are passed out by ip_set_destination */ iulp_localnet: 1, /* IRE_ONLINK */ iulp_loopback: 1, /* IRE_LOOPBACK */ iulp_local: 1, /* IRE_LOCAL */ iulp_not_used : 25; } iulp_t; /* * The conn drain list structure (idl_t), protected by idl_lock. Each conn_t * inserted in the list points back at this idl_t using conn_idl, and is * chained by conn_drain_next and conn_drain_prev, which are also protected by * idl_lock. When flow control is relieved, either ip_wsrv() (STREAMS) or * ill_flow_enable() (non-STREAMS) will call conn_drain(). * * The conn drain list, idl_t, itself is part of tx cookie list structure. * A tx cookie list points to a blocked Tx ring and contains the list of * all conn's that are blocked due to the flow-controlled Tx ring (via * the idl drain list). Note that a link can have multiple Tx rings. The * drain list will store the conn's blocked due to Tx ring being flow * controlled. */ typedef uintptr_t ip_mac_tx_cookie_t; typedef struct idl_s idl_t; typedef struct idl_tx_list_s idl_tx_list_t; struct idl_tx_list_s { ip_mac_tx_cookie_t txl_cookie; kmutex_t txl_lock; /* Lock for this list */ idl_t *txl_drain_list; int txl_drain_index; }; struct idl_s { conn_t *idl_conn; /* Head of drain list */ kmutex_t idl_lock; /* Lock for this list */ idl_tx_list_t *idl_itl; }; /* * Interface route structure which holds the necessary information to recreate * routes that are tied to an interface i.e. have ire_ill set. * * These routes which were initially created via a routing socket or via the * SIOCADDRT ioctl may be gateway routes (RTF_GATEWAY being set) or may be * traditional interface routes. When an ill comes back up after being * down, this information will be used to recreate the routes. These * are part of an mblk_t chain that hangs off of the ILL (ill_saved_ire_mp). */ typedef struct ifrt_s { ushort_t ifrt_type; /* Type of IRE */ in6_addr_t ifrt_v6addr; /* Address IRE represents. */ in6_addr_t ifrt_v6gateway_addr; /* Gateway if IRE_OFFLINK */ in6_addr_t ifrt_v6setsrc_addr; /* Src addr if RTF_SETSRC */ in6_addr_t ifrt_v6mask; /* Mask for matching IRE. */ uint32_t ifrt_flags; /* flags related to route */ iulp_t ifrt_metrics; /* Routing socket metrics */ zoneid_t ifrt_zoneid; /* zoneid for route */ } ifrt_t; #define ifrt_addr V4_PART_OF_V6(ifrt_v6addr) #define ifrt_gateway_addr V4_PART_OF_V6(ifrt_v6gateway_addr) #define ifrt_mask V4_PART_OF_V6(ifrt_v6mask) #define ifrt_setsrc_addr V4_PART_OF_V6(ifrt_v6setsrc_addr) /* Number of IP addresses that can be hosted on a physical interface */ #define MAX_ADDRS_PER_IF 8192 /* * Number of Source addresses to be considered for source address * selection. Used by ipif_select_source_v4/v6. */ #define MAX_IPIF_SELECT_SOURCE 50 #ifdef IP_DEBUG /* * Trace refholds and refreles for debugging. */ #define TR_STACK_DEPTH 14 typedef struct tr_buf_s { int tr_depth; clock_t tr_time; pc_t tr_stack[TR_STACK_DEPTH]; } tr_buf_t; typedef struct th_trace_s { int th_refcnt; uint_t th_trace_lastref; kthread_t *th_id; #define TR_BUF_MAX 38 tr_buf_t th_trbuf[TR_BUF_MAX]; } th_trace_t; typedef struct th_hash_s { list_node_t thh_link; mod_hash_t *thh_hash; ip_stack_t *thh_ipst; } th_hash_t; #endif /* The following are ipif_state_flags */ #define IPIF_CONDEMNED 0x1 /* The ipif is being removed */ #define IPIF_CHANGING 0x2 /* A critcal ipif field is changing */ #define IPIF_SET_LINKLOCAL 0x10 /* transient flag during bringup */ /* IP interface structure, one per local address */ typedef struct ipif_s { struct ipif_s *ipif_next; struct ill_s *ipif_ill; /* Back pointer to our ill */ int ipif_id; /* Logical unit number */ in6_addr_t ipif_v6lcl_addr; /* Local IP address for this if. */ in6_addr_t ipif_v6subnet; /* Subnet prefix for this if. */ in6_addr_t ipif_v6net_mask; /* Net mask for this interface. */ in6_addr_t ipif_v6brd_addr; /* Broadcast addr for this interface. */ in6_addr_t ipif_v6pp_dst_addr; /* Point-to-point dest address. */ uint64_t ipif_flags; /* Interface flags. */ uint_t ipif_ire_type; /* IRE_LOCAL or IRE_LOOPBACK */ /* * The packet count in the ipif contain the sum of the * packet counts in dead IRE_LOCAL/LOOPBACK for this ipif. */ uint_t ipif_ib_pkt_count; /* Inbound packets for our dead IREs */ /* Exclusive bit fields, protected by ipsq_t */ unsigned int ipif_was_up : 1, /* ipif was up before */ ipif_addr_ready : 1, /* DAD is done */ ipif_was_dup : 1, /* DAD had failed */ ipif_added_nce : 1, /* nce added for local address */ ipif_pad_to_31 : 28; ilm_t *ipif_allhosts_ilm; /* For all-nodes join */ ilm_t *ipif_solmulti_ilm; /* For IPv6 solicited multicast join */ uint_t ipif_seqid; /* unique index across all ills */ uint_t ipif_state_flags; /* See IPIF_* flag defs above */ uint_t ipif_refcnt; /* active consistent reader cnt */ zoneid_t ipif_zoneid; /* zone ID number */ timeout_id_t ipif_recovery_id; /* Timer for DAD recovery */ boolean_t ipif_trace_disable; /* True when alloc fails */ /* * For an IPMP interface, ipif_bound_ill tracks the ill whose hardware * information this ipif is associated with via ARP/NDP. We can use * an ill pointer (rather than an index) because only ills that are * part of a group will be pointed to, and an ill cannot disappear * while it's in a group. */ struct ill_s *ipif_bound_ill; struct ipif_s *ipif_bound_next; /* bound ipif chain */ boolean_t ipif_bound; /* B_TRUE if we successfully bound */ struct ire_s *ipif_ire_local; /* Our IRE_LOCAL or LOOPBACK */ struct ire_s *ipif_ire_if; /* Our IRE_INTERFACE */ } ipif_t; /* * The following table lists the protection levels of the various members * of the ipif_t. The following notation is used. * * Write once - Written to only once at the time of bringing up * the interface and can be safely read after the bringup without any lock. * * ipsq - Need to execute in the ipsq to perform the indicated access. * * ill_lock - Need to hold this mutex to perform the indicated access. * * ill_g_lock - Need to hold this rw lock as reader/writer for read access or * write access respectively. * * down ill - Written to only when the ill is down (i.e all ipifs are down) * up ill - Read only when the ill is up (i.e. at least 1 ipif is up) * * Table of ipif_t members and their protection * * ipif_next ipsq + ill_lock + ipsq OR ill_lock OR * ill_g_lock ill_g_lock * ipif_ill ipsq + down ipif write once * ipif_id ipsq + down ipif write once * ipif_v6lcl_addr ipsq + down ipif up ipif * ipif_v6subnet ipsq + down ipif up ipif * ipif_v6net_mask ipsq + down ipif up ipif * * ipif_v6brd_addr * ipif_v6pp_dst_addr * ipif_flags ill_lock ill_lock * ipif_ire_type ipsq + down ill up ill * * ipif_ib_pkt_count Approx * * bit fields ill_lock ill_lock * * ipif_allhosts_ilm ipsq ipsq * ipif_solmulti_ilm ipsq ipsq * * ipif_seqid ipsq Write once * * ipif_state_flags ill_lock ill_lock * ipif_refcnt ill_lock ill_lock * ipif_bound_ill ipsq + ipmp_lock ipsq OR ipmp_lock * ipif_bound_next ipsq ipsq * ipif_bound ipsq ipsq * * ipif_ire_local ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock * ipif_ire_if ipsq + ips_ill_g_lock ipsq OR ips_ill_g_lock */ /* * Return values from ip_laddr_verify_{v4,v6} */ typedef enum { IPVL_UNICAST_UP, IPVL_UNICAST_DOWN, IPVL_MCAST, IPVL_BCAST, IPVL_BAD} ip_laddr_t; #define IP_TR_HASH(tid) ((((uintptr_t)tid) >> 6) & (IP_TR_HASH_MAX - 1)) #ifdef DEBUG #define IPIF_TRACE_REF(ipif) ipif_trace_ref(ipif) #define ILL_TRACE_REF(ill) ill_trace_ref(ill) #define IPIF_UNTRACE_REF(ipif) ipif_untrace_ref(ipif) #define ILL_UNTRACE_REF(ill) ill_untrace_ref(ill) #else #define IPIF_TRACE_REF(ipif) #define ILL_TRACE_REF(ill) #define IPIF_UNTRACE_REF(ipif) #define ILL_UNTRACE_REF(ill) #endif /* IPv4 compatibility macros */ #define ipif_lcl_addr V4_PART_OF_V6(ipif_v6lcl_addr) #define ipif_subnet V4_PART_OF_V6(ipif_v6subnet) #define ipif_net_mask V4_PART_OF_V6(ipif_v6net_mask) #define ipif_brd_addr V4_PART_OF_V6(ipif_v6brd_addr) #define ipif_pp_dst_addr V4_PART_OF_V6(ipif_v6pp_dst_addr) /* Macros for easy backreferences to the ill. */ #define ipif_isv6 ipif_ill->ill_isv6 #define SIOCLIFADDR_NDX 112 /* ndx of SIOCLIFADDR in the ndx ioctl table */ /* * mode value for ip_ioctl_finish for finishing an ioctl */ #define CONN_CLOSE 1 /* No mi_copy */ #define COPYOUT 2 /* do an mi_copyout if needed */ #define NO_COPYOUT 3 /* do an mi_copy_done */ #define IPI2MODE(ipi) ((ipi)->ipi_flags & IPI_GET_CMD ? COPYOUT : NO_COPYOUT) /* * The IP-MT design revolves around the serialization objects ipsq_t (IPSQ) * and ipxop_t (exclusive operation or "xop"). Becoming "writer" on an IPSQ * ensures that no other threads can become "writer" on any IPSQs sharing that * IPSQ's xop until the writer thread is done. * * Each phyint points to one IPSQ that remains fixed over the phyint's life. * Each IPSQ points to one xop that can change over the IPSQ's life. If a * phyint is *not* in an IPMP group, then its IPSQ will refer to the IPSQ's * "own" xop (ipsq_ownxop). If a phyint *is* part of an IPMP group, then its * IPSQ will refer to the "group" xop, which is shorthand for the xop of the * IPSQ of the IPMP meta-interface's phyint. Thus, all phyints that are part * of the same IPMP group will have their IPSQ's point to the group xop, and * thus becoming "writer" on any phyint in the group will prevent any other * writer on any other phyint in the group. All IPSQs sharing the same xop * are chained together through ipsq_next (in the degenerate common case, * ipsq_next simply refers to itself). Note that the group xop is guaranteed * to exist at least as long as there are members in the group, since the IPMP * meta-interface can only be destroyed if the group is empty. * * Incoming exclusive operation requests are enqueued on the IPSQ they arrived * on rather than the xop. This makes switching xop's (as would happen when a * phyint leaves an IPMP group) simple, because after the phyint leaves the * group, any operations enqueued on its IPSQ can be safely processed with * respect to its new xop, and any operations enqueued on the IPSQs of its * former group can be processed with respect to their existing group xop. * Even so, switching xops is a subtle dance; see ipsq_dq() for details. * * An IPSQ's "own" xop is embedded within the IPSQ itself since they have have * identical lifetimes, and because doing so simplifies pointer management. * While each phyint and IPSQ point to each other, it is not possible to free * the IPSQ when the phyint is freed, since we may still *inside* the IPSQ * when the phyint is being freed. Thus, ipsq_phyint is set to NULL when the * phyint is freed, and the IPSQ free is later done in ipsq_exit(). * * ipsq_t synchronization: read write * * ipsq_xopq_mphead ipx_lock ipx_lock * ipsq_xopq_mptail ipx_lock ipx_lock * ipsq_xop_switch_mp ipsq_lock ipsq_lock * ipsq_phyint write once write once * ipsq_next RW_READER ill_g_lock RW_WRITER ill_g_lock * ipsq_xop ipsq_lock or ipsq ipsq_lock + ipsq * ipsq_swxop ipsq ipsq * ipsq_ownxop see ipxop_t see ipxop_t * ipsq_ipst write once write once * * ipxop_t synchronization: read write * * ipx_writer ipx_lock ipx_lock * ipx_xop_queued ipx_lock ipx_lock * ipx_mphead ipx_lock ipx_lock * ipx_mptail ipx_lock ipx_lock * ipx_ipsq write once write once * ips_ipsq_queued ipx_lock ipx_lock * ipx_waitfor ipsq or ipx_lock ipsq + ipx_lock * ipx_reentry_cnt ipsq or ipx_lock ipsq + ipx_lock * ipx_current_done ipsq ipsq * ipx_current_ioctl ipsq ipsq * ipx_current_ipif ipsq or ipx_lock ipsq + ipx_lock * ipx_pending_ipif ipsq or ipx_lock ipsq + ipx_lock * ipx_pending_mp ipsq or ipx_lock ipsq + ipx_lock * ipx_forced ipsq ipsq * ipx_depth ipsq ipsq * ipx_stack ipsq ipsq */ typedef struct ipxop_s { kmutex_t ipx_lock; /* see above */ kthread_t *ipx_writer; /* current owner */ mblk_t *ipx_mphead; /* messages tied to this op */ mblk_t *ipx_mptail; struct ipsq_s *ipx_ipsq; /* associated ipsq */ boolean_t ipx_ipsq_queued; /* ipsq using xop has queued op */ int ipx_waitfor; /* waiting; values encoded below */ int ipx_reentry_cnt; boolean_t ipx_current_done; /* is the current operation done? */ int ipx_current_ioctl; /* current ioctl, or 0 if no ioctl */ ipif_t *ipx_current_ipif; /* ipif for current op */ ipif_t *ipx_pending_ipif; /* ipif for ipx_pending_mp */ mblk_t *ipx_pending_mp; /* current ioctl mp while waiting */ boolean_t ipx_forced; /* debugging aid */ #ifdef DEBUG int ipx_depth; /* debugging aid */ #define IPX_STACK_DEPTH 15 pc_t ipx_stack[IPX_STACK_DEPTH]; /* debugging aid */ #endif } ipxop_t; typedef struct ipsq_s { kmutex_t ipsq_lock; /* see above */ mblk_t *ipsq_switch_mp; /* op to handle right after switch */ mblk_t *ipsq_xopq_mphead; /* list of excl ops (mostly ioctls) */ mblk_t *ipsq_xopq_mptail; struct phyint *ipsq_phyint; /* associated phyint */ struct ipsq_s *ipsq_next; /* next ipsq sharing ipsq_xop */ struct ipxop_s *ipsq_xop; /* current xop synchronization info */ struct ipxop_s *ipsq_swxop; /* switch xop to on ipsq_exit() */ struct ipxop_s ipsq_ownxop; /* our own xop (may not be in-use) */ ip_stack_t *ipsq_ipst; /* does not have a netstack_hold */ } ipsq_t; /* * ipx_waitfor values: */ enum { IPIF_DOWN = 1, /* ipif_down() waiting for refcnts to drop */ ILL_DOWN, /* ill_down() waiting for refcnts to drop */ IPIF_FREE, /* ipif_free() waiting for refcnts to drop */ ILL_FREE /* ill unplumb waiting for refcnts to drop */ }; /* Operation types for ipsq_try_enter() */ #define CUR_OP 0 /* request writer within current operation */ #define NEW_OP 1 /* request writer for a new operation */ #define SWITCH_OP 2 /* request writer once IPSQ XOP switches */ /* * Kstats tracked on each IPMP meta-interface. Order here must match * ipmp_kstats[] in ip/ipmp.c. */ enum { IPMP_KSTAT_OBYTES, IPMP_KSTAT_OBYTES64, IPMP_KSTAT_RBYTES, IPMP_KSTAT_RBYTES64, IPMP_KSTAT_OPACKETS, IPMP_KSTAT_OPACKETS64, IPMP_KSTAT_OERRORS, IPMP_KSTAT_IPACKETS, IPMP_KSTAT_IPACKETS64, IPMP_KSTAT_IERRORS, IPMP_KSTAT_MULTIRCV, IPMP_KSTAT_MULTIXMT, IPMP_KSTAT_BRDCSTRCV, IPMP_KSTAT_BRDCSTXMT, IPMP_KSTAT_LINK_UP, IPMP_KSTAT_MAX /* keep last */ }; /* * phyint represents state that is common to both IPv4 and IPv6 interfaces. * There is a separate ill_t representing IPv4 and IPv6 which has a * backpointer to the phyint structure for accessing common state. */ typedef struct phyint { struct ill_s *phyint_illv4; struct ill_s *phyint_illv6; uint_t phyint_ifindex; /* SIOCSLIFINDEX */ uint64_t phyint_flags; avl_node_t phyint_avl_by_index; /* avl tree by index */ avl_node_t phyint_avl_by_name; /* avl tree by name */ kmutex_t phyint_lock; struct ipsq_s *phyint_ipsq; /* back pointer to ipsq */ struct ipmp_grp_s *phyint_grp; /* associated IPMP group */ char phyint_name[LIFNAMSIZ]; /* physical interface name */ uint64_t phyint_kstats0[IPMP_KSTAT_MAX]; /* baseline kstats */ } phyint_t; #define CACHE_ALIGN_SIZE 64 #define CACHE_ALIGN(align_struct) P2ROUNDUP(sizeof (struct align_struct),\ CACHE_ALIGN_SIZE) struct _phyint_list_s_ { avl_tree_t phyint_list_avl_by_index; /* avl tree by index */ avl_tree_t phyint_list_avl_by_name; /* avl tree by name */ }; typedef union phyint_list_u { struct _phyint_list_s_ phyint_list_s; char phyint_list_filler[CACHE_ALIGN(_phyint_list_s_)]; } phyint_list_t; #define phyint_list_avl_by_index phyint_list_s.phyint_list_avl_by_index #define phyint_list_avl_by_name phyint_list_s.phyint_list_avl_by_name /* * Fragmentation hash bucket */ typedef struct ipfb_s { struct ipf_s *ipfb_ipf; /* List of ... */ size_t ipfb_count; /* Count of bytes used by frag(s) */ kmutex_t ipfb_lock; /* Protect all ipf in list */ uint_t ipfb_frag_pkts; /* num of distinct fragmented pkts */ } ipfb_t; /* * IRE bucket structure. Usually there is an array of such structures, * each pointing to a linked list of ires. irb_refcnt counts the number * of walkers of a given hash bucket. Usually the reference count is * bumped up if the walker wants no IRES to be DELETED while walking the * list. Bumping up does not PREVENT ADDITION. This allows walking a given * hash bucket without stumbling up on a free pointer. * * irb_t structures in ip_ftable are dynamically allocated and freed. * In order to identify the irb_t structures that can be safely kmem_free'd * we need to ensure that * - the irb_refcnt is quiescent, indicating no other walkers, * - no other threads or ire's are holding references to the irb, * i.e., irb_nire == 0, * - there are no active ire's in the bucket, i.e., irb_ire_cnt == 0 */ typedef struct irb { struct ire_s *irb_ire; /* First ire in this bucket */ /* Should be first in this struct */ krwlock_t irb_lock; /* Protect this bucket */ uint_t irb_refcnt; /* Protected by irb_lock */ uchar_t irb_marks; /* CONDEMNED ires in this bucket ? */ #define IRB_MARK_CONDEMNED 0x0001 /* Contains some IRE_IS_CONDEMNED */ #define IRB_MARK_DYNAMIC 0x0002 /* Dynamically allocated */ /* Once IPv6 uses radix then IRB_MARK_DYNAMIC will be always be set */ uint_t irb_ire_cnt; /* Num of active IRE in this bucket */ int irb_nire; /* Num of ftable ire's that ref irb */ ip_stack_t *irb_ipst; /* Does not have a netstack_hold */ } irb_t; #define IRB2RT(irb) (rt_t *)((caddr_t)(irb) - offsetof(rt_t, rt_irb)) /* Forward declarations */ struct dce_s; typedef struct dce_s dce_t; struct ire_s; typedef struct ire_s ire_t; struct ncec_s; typedef struct ncec_s ncec_t; struct nce_s; typedef struct nce_s nce_t; struct ip_recv_attr_s; typedef struct ip_recv_attr_s ip_recv_attr_t; struct ip_xmit_attr_s; typedef struct ip_xmit_attr_s ip_xmit_attr_t; struct tsol_ire_gw_secattr_s; typedef struct tsol_ire_gw_secattr_s tsol_ire_gw_secattr_t; /* * This is a structure for a one-element route cache that is passed * by reference between ip_input and ill_inputfn. */ typedef struct { ire_t *rtc_ire; ipaddr_t rtc_ipaddr; in6_addr_t rtc_ip6addr; } rtc_t; /* * Note: Temporarily use 64 bits, and will probably go back to 32 bits after * more cleanup work is done. */ typedef uint64_t iaflags_t; /* The ill input function pointer type */ typedef void (*pfillinput_t)(mblk_t *, void *, void *, ip_recv_attr_t *, rtc_t *); /* The ire receive function pointer type */ typedef void (*pfirerecv_t)(ire_t *, mblk_t *, void *, ip_recv_attr_t *); /* The ire send and postfrag function pointer types */ typedef int (*pfiresend_t)(ire_t *, mblk_t *, void *, ip_xmit_attr_t *, uint32_t *); typedef int (*pfirepostfrag_t)(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t, zoneid_t, zoneid_t, uintptr_t *); #define IP_V4_G_HEAD 0 #define IP_V6_G_HEAD 1 #define MAX_G_HEADS 2 /* * unpadded ill_if structure */ struct _ill_if_s_ { union ill_if_u *illif_next; union ill_if_u *illif_prev; avl_tree_t illif_avl_by_ppa; /* AVL tree sorted on ppa */ vmem_t *illif_ppa_arena; /* ppa index space */ uint16_t illif_mcast_v1; /* hints for */ uint16_t illif_mcast_v2; /* [igmp|mld]_slowtimo */ int illif_name_len; /* name length */ char illif_name[LIFNAMSIZ]; /* name of interface type */ }; /* cache aligned ill_if structure */ typedef union ill_if_u { struct _ill_if_s_ ill_if_s; char illif_filler[CACHE_ALIGN(_ill_if_s_)]; } ill_if_t; #define illif_next ill_if_s.illif_next #define illif_prev ill_if_s.illif_prev #define illif_avl_by_ppa ill_if_s.illif_avl_by_ppa #define illif_ppa_arena ill_if_s.illif_ppa_arena #define illif_mcast_v1 ill_if_s.illif_mcast_v1 #define illif_mcast_v2 ill_if_s.illif_mcast_v2 #define illif_name ill_if_s.illif_name #define illif_name_len ill_if_s.illif_name_len typedef struct ill_walk_context_s { int ctx_current_list; /* current list being searched */ int ctx_last_list; /* last list to search */ } ill_walk_context_t; /* * ill_g_heads structure, one for IPV4 and one for IPV6 */ struct _ill_g_head_s_ { ill_if_t *ill_g_list_head; ill_if_t *ill_g_list_tail; }; typedef union ill_g_head_u { struct _ill_g_head_s_ ill_g_head_s; char ill_g_head_filler[CACHE_ALIGN(_ill_g_head_s_)]; } ill_g_head_t; #define ill_g_list_head ill_g_head_s.ill_g_list_head #define ill_g_list_tail ill_g_head_s.ill_g_list_tail #define IP_V4_ILL_G_LIST(ipst) \ (ipst)->ips_ill_g_heads[IP_V4_G_HEAD].ill_g_list_head #define IP_V6_ILL_G_LIST(ipst) \ (ipst)->ips_ill_g_heads[IP_V6_G_HEAD].ill_g_list_head #define IP_VX_ILL_G_LIST(i, ipst) \ (ipst)->ips_ill_g_heads[i].ill_g_list_head #define ILL_START_WALK_V4(ctx_ptr, ipst) \ ill_first(IP_V4_G_HEAD, IP_V4_G_HEAD, ctx_ptr, ipst) #define ILL_START_WALK_V6(ctx_ptr, ipst) \ ill_first(IP_V6_G_HEAD, IP_V6_G_HEAD, ctx_ptr, ipst) #define ILL_START_WALK_ALL(ctx_ptr, ipst) \ ill_first(MAX_G_HEADS, MAX_G_HEADS, ctx_ptr, ipst) /* * Capabilities, possible flags for ill_capabilities. */ #define ILL_CAPAB_LSO 0x04 /* Large Send Offload */ #define ILL_CAPAB_HCKSUM 0x08 /* Hardware checksumming */ #define ILL_CAPAB_ZEROCOPY 0x10 /* Zero-copy */ #define ILL_CAPAB_DLD 0x20 /* DLD capabilities */ #define ILL_CAPAB_DLD_POLL 0x40 /* Polling */ #define ILL_CAPAB_DLD_DIRECT 0x80 /* Direct function call */ /* * Per-ill Hardware Checksumming capbilities. */ typedef struct ill_hcksum_capab_s ill_hcksum_capab_t; /* * Per-ill Zero-copy capabilities. */ typedef struct ill_zerocopy_capab_s ill_zerocopy_capab_t; /* * DLD capbilities. */ typedef struct ill_dld_capab_s ill_dld_capab_t; /* * Per-ill polling resource map. */ typedef struct ill_rx_ring ill_rx_ring_t; /* * Per-ill Large Send Offload capabilities. */ typedef struct ill_lso_capab_s ill_lso_capab_t; /* The following are ill_state_flags */ #define ILL_LL_SUBNET_PENDING 0x01 /* Waiting for DL_INFO_ACK from drv */ #define ILL_CONDEMNED 0x02 /* No more new ref's to the ILL */ #define ILL_DL_UNBIND_IN_PROGRESS 0x04 /* UNBIND_REQ is sent */ /* * ILL_DOWN_IN_PROGRESS is set to ensure the following: * - no packets are sent to the driver after the DL_UNBIND_REQ is sent, * - no longstanding references will be acquired on objects that are being * brought down. */ #define ILL_DOWN_IN_PROGRESS 0x08 /* Is this an ILL whose source address is used by other ILL's ? */ #define IS_USESRC_ILL(ill) \ (((ill)->ill_usesrc_ifindex == 0) && \ ((ill)->ill_usesrc_grp_next != NULL)) /* Is this a client/consumer of the usesrc ILL ? */ #define IS_USESRC_CLI_ILL(ill) \ (((ill)->ill_usesrc_ifindex != 0) && \ ((ill)->ill_usesrc_grp_next != NULL)) /* Is this an virtual network interface (vni) ILL ? */ #define IS_VNI(ill) \ (((ill)->ill_phyint->phyint_flags & (PHYI_LOOPBACK|PHYI_VIRTUAL)) == \ PHYI_VIRTUAL) /* Is this a loopback ILL? */ #define IS_LOOPBACK(ill) \ ((ill)->ill_phyint->phyint_flags & PHYI_LOOPBACK) /* Is this an IPMP meta-interface ILL? */ #define IS_IPMP(ill) \ ((ill)->ill_phyint->phyint_flags & PHYI_IPMP) /* Is this ILL under an IPMP meta-interface? (aka "in a group?") */ #define IS_UNDER_IPMP(ill) \ ((ill)->ill_grp != NULL && !IS_IPMP(ill)) /* Is ill1 in the same illgrp as ill2? */ #define IS_IN_SAME_ILLGRP(ill1, ill2) \ ((ill1)->ill_grp != NULL && ((ill1)->ill_grp == (ill2)->ill_grp)) /* Is ill1 on the same LAN as ill2? */ #define IS_ON_SAME_LAN(ill1, ill2) \ ((ill1) == (ill2) || IS_IN_SAME_ILLGRP(ill1, ill2)) #define ILL_OTHER(ill) \ ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \ (ill)->ill_phyint->phyint_illv6) /* * IPMP group ILL state structure -- up to two per IPMP group (V4 and V6). * Created when the V4 and/or V6 IPMP meta-interface is I_PLINK'd. It is * guaranteed to persist while there are interfaces of that type in the group. * In general, most fields are accessed outside of the IPSQ (e.g., in the * datapath), and thus use locks in addition to the IPSQ for protection. * * synchronization: read write * * ig_if ipsq or ill_g_lock ipsq and ill_g_lock * ig_actif ipsq or ipmp_lock ipsq and ipmp_lock * ig_nactif ipsq or ipmp_lock ipsq and ipmp_lock * ig_next_ill ipsq or ipmp_lock ipsq and ipmp_lock * ig_ipmp_ill write once write once * ig_cast_ill ipsq or ipmp_lock ipsq and ipmp_lock * ig_arpent ipsq ipsq * ig_mtu ipsq ipsq */ typedef struct ipmp_illgrp_s { list_t ig_if; /* list of all interfaces */ list_t ig_actif; /* list of active interfaces */ uint_t ig_nactif; /* number of active interfaces */ struct ill_s *ig_next_ill; /* next active interface to use */ struct ill_s *ig_ipmp_ill; /* backpointer to IPMP meta-interface */ struct ill_s *ig_cast_ill; /* nominated ill for multi/broadcast */ list_t ig_arpent; /* list of ARP entries */ uint_t ig_mtu; /* ig_ipmp_ill->ill_max_mtu */ } ipmp_illgrp_t; /* * IPMP group state structure -- one per IPMP group. Created when the * IPMP meta-interface is plumbed; it is guaranteed to persist while there * are interfaces in it. * * ipmp_grp_t synchronization: read write * * gr_name ipmp_lock ipmp_lock * gr_ifname write once write once * gr_mactype ipmp_lock ipmp_lock * gr_phyint write once write once * gr_nif ipmp_lock ipmp_lock * gr_nactif ipsq ipsq * gr_v4 ipmp_lock ipmp_lock * gr_v6 ipmp_lock ipmp_lock * gr_nv4 ipmp_lock ipmp_lock * gr_nv6 ipmp_lock ipmp_lock * gr_pendv4 ipmp_lock ipmp_lock * gr_pendv6 ipmp_lock ipmp_lock * gr_linkdownmp ipsq ipsq * gr_ksp ipmp_lock ipmp_lock * gr_kstats0 atomic atomic */ typedef struct ipmp_grp_s { char gr_name[LIFGRNAMSIZ]; /* group name */ char gr_ifname[LIFNAMSIZ]; /* interface name */ t_uscalar_t gr_mactype; /* DLPI mactype of group */ phyint_t *gr_phyint; /* IPMP group phyint */ uint_t gr_nif; /* number of interfaces in group */ uint_t gr_nactif; /* number of active interfaces */ ipmp_illgrp_t *gr_v4; /* V4 group information */ ipmp_illgrp_t *gr_v6; /* V6 group information */ uint_t gr_nv4; /* number of ills in V4 group */ uint_t gr_nv6; /* number of ills in V6 group */ uint_t gr_pendv4; /* number of pending ills in V4 group */ uint_t gr_pendv6; /* number of pending ills in V6 group */ mblk_t *gr_linkdownmp; /* message used to bring link down */ kstat_t *gr_ksp; /* group kstat pointer */ uint64_t gr_kstats0[IPMP_KSTAT_MAX]; /* baseline group kstats */ } ipmp_grp_t; /* * IPMP ARP entry -- one per SIOCS*ARP entry tied to the group. Used to keep * ARP up-to-date as the active set of interfaces in the group changes. */ typedef struct ipmp_arpent_s { ipaddr_t ia_ipaddr; /* IP address for this entry */ boolean_t ia_proxyarp; /* proxy ARP entry? */ boolean_t ia_notified; /* ARP notified about this entry? */ list_node_t ia_node; /* next ARP entry in list */ uint16_t ia_flags; /* nce_flags for the address */ size_t ia_lladdr_len; uchar_t *ia_lladdr; } ipmp_arpent_t; struct arl_s; /* * Per-ill capabilities. */ struct ill_hcksum_capab_s { uint_t ill_hcksum_version; /* interface version */ uint_t ill_hcksum_txflags; /* capabilities on transmit */ }; struct ill_zerocopy_capab_s { uint_t ill_zerocopy_version; /* interface version */ uint_t ill_zerocopy_flags; /* capabilities */ }; struct ill_lso_capab_s { uint_t ill_lso_flags; /* capabilities */ uint_t ill_lso_max; /* maximum size of payload */ }; /* * IP Lower level Structure. * Instance data structure in ip_open when there is a device below us. */ typedef struct ill_s { pfillinput_t ill_inputfn; /* Fast input function selector */ ill_if_t *ill_ifptr; /* pointer to interface type */ queue_t *ill_rq; /* Read queue. */ queue_t *ill_wq; /* Write queue. */ int ill_error; /* Error value sent up by device. */ ipif_t *ill_ipif; /* Interface chain for this ILL. */ uint_t ill_ipif_up_count; /* Number of IPIFs currently up. */ uint_t ill_max_frag; /* Max IDU from DLPI. */ uint_t ill_current_frag; /* Current IDU from DLPI. */ uint_t ill_mtu; /* User-specified MTU; SIOCSLIFMTU */ uint_t ill_metric; /* BSD if metric, for compatibility. */ char *ill_name; /* Our name. */ uint_t ill_ipif_dup_count; /* Number of duplicate addresses. */ uint_t ill_name_length; /* Name length, incl. terminator. */ uint_t ill_net_type; /* IRE_IF_RESOLVER/IRE_IF_NORESOLVER. */ /* * Physical Point of Attachment num. If DLPI style 1 provider * then this is derived from the devname. */ uint_t ill_ppa; t_uscalar_t ill_sap; t_scalar_t ill_sap_length; /* Including sign (for position) */ uint_t ill_phys_addr_length; /* Excluding the sap. */ uint_t ill_bcast_addr_length; /* Only set when the DL provider */ /* supports broadcast. */ t_uscalar_t ill_mactype; uint8_t *ill_frag_ptr; /* Reassembly state. */ timeout_id_t ill_frag_timer_id; /* timeout id for the frag timer */ ipfb_t *ill_frag_hash_tbl; /* Fragment hash list head. */ krwlock_t ill_mcast_lock; /* Protects multicast state */ kmutex_t ill_mcast_serializer; /* Serialize across ilg and ilm state */ ilm_t *ill_ilm; /* Multicast membership for ill */ uint_t ill_global_timer; /* for IGMPv3/MLDv2 general queries */ int ill_mcast_type; /* type of router which is querier */ /* on this interface */ uint16_t ill_mcast_v1_time; /* # slow timeouts since last v1 qry */ uint16_t ill_mcast_v2_time; /* # slow timeouts since last v2 qry */ uint8_t ill_mcast_v1_tset; /* 1 => timer is set; 0 => not set */ uint8_t ill_mcast_v2_tset; /* 1 => timer is set; 0 => not set */ uint8_t ill_mcast_rv; /* IGMPv3/MLDv2 robustness variable */ int ill_mcast_qi; /* IGMPv3/MLDv2 query interval var */ /* * All non-NULL cells between 'ill_first_mp_to_free' and * 'ill_last_mp_to_free' are freed in ill_delete. */ #define ill_first_mp_to_free ill_bcast_mp mblk_t *ill_bcast_mp; /* DLPI header for broadcasts. */ mblk_t *ill_unbind_mp; /* unbind mp from ill_dl_up() */ mblk_t *ill_promiscoff_mp; /* for ill_leave_allmulti() */ mblk_t *ill_dlpi_deferred; /* b_next chain of control messages */ mblk_t *ill_dest_addr_mp; /* mblk which holds ill_dest_addr */ mblk_t *ill_replumb_mp; /* replumb mp from ill_replumb() */ mblk_t *ill_phys_addr_mp; /* mblk which holds ill_phys_addr */ mblk_t *ill_mcast_deferred; /* b_next chain of IGMP/MLD packets */ #define ill_last_mp_to_free ill_mcast_deferred cred_t *ill_credp; /* opener's credentials */ uint8_t *ill_phys_addr; /* ill_phys_addr_mp->b_rptr + off */ uint8_t *ill_dest_addr; /* ill_dest_addr_mp->b_rptr + off */ uint_t ill_state_flags; /* see ILL_* flags above */ /* Following bit fields protected by ipsq_t */ uint_t ill_needs_attach : 1, ill_reserved : 1, ill_isv6 : 1, ill_dlpi_style_set : 1, ill_ifname_pending : 1, ill_logical_down : 1, ill_dl_up : 1, ill_up_ipifs : 1, ill_note_link : 1, /* supports link-up notification */ ill_capab_reneg : 1, /* capability renegotiation to be done */ ill_dld_capab_inprog : 1, /* direct dld capab call in prog */ ill_need_recover_multicast : 1, ill_replumbing : 1, ill_arl_dlpi_pending : 1, ill_grp_pending : 1, ill_pad_to_bit_31 : 17; /* Following bit fields protected by ill_lock */ uint_t ill_fragtimer_executing : 1, ill_fragtimer_needrestart : 1, ill_manual_token : 1, /* system won't override ill_token */ /* * ill_manual_linklocal : system will not change the * linklocal whenever ill_token changes. */ ill_manual_linklocal : 1, ill_manual_dst_linklocal : 1, /* same for pt-pt dst linklocal */ ill_pad_bit_31 : 27; /* * Used in SIOCSIFMUXID and SIOCGIFMUXID for 'ifconfig unplumb'. */ int ill_muxid; /* muxid returned from plink */ /* Used for IP frag reassembly throttling on a per ILL basis. */ uint_t ill_ipf_gen; /* Generation of next fragment queue */ uint_t ill_frag_count; /* Count of all reassembly mblk bytes */ uint_t ill_frag_free_num_pkts; /* num of fragmented packets to free */ clock_t ill_last_frag_clean_time; /* time when frag's were pruned */ int ill_type; /* From */ uint_t ill_dlpi_multicast_state; /* See below IDS_* */ uint_t ill_dlpi_fastpath_state; /* See below IDS_* */ /* * Capabilities related fields. */ uint_t ill_dlpi_capab_state; /* State of capability query, IDCS_* */ uint_t ill_capab_pending_cnt; uint64_t ill_capabilities; /* Enabled capabilities, ILL_CAPAB_* */ ill_hcksum_capab_t *ill_hcksum_capab; /* H/W cksumming capabilities */ ill_zerocopy_capab_t *ill_zerocopy_capab; /* Zero-copy capabilities */ ill_dld_capab_t *ill_dld_capab; /* DLD capabilities */ ill_lso_capab_t *ill_lso_capab; /* Large Segment Offload capabilities */ mblk_t *ill_capab_reset_mp; /* Preallocated mblk for capab reset */ uint8_t ill_max_hops; /* Maximum hops for any logical interface */ uint_t ill_user_mtu; /* User-specified MTU via SIOCSLIFLNKINFO */ uint32_t ill_reachable_time; /* Value for ND algorithm in msec */ uint32_t ill_reachable_retrans_time; /* Value for ND algorithm msec */ uint_t ill_max_buf; /* Max # of req to buffer for ND */ in6_addr_t ill_token; /* IPv6 interface id */ in6_addr_t ill_dest_token; /* Destination IPv6 interface id */ uint_t ill_token_length; uint32_t ill_xmit_count; /* ndp max multicast xmits */ mib2_ipIfStatsEntry_t *ill_ip_mib; /* ver indep. interface mib */ mib2_ipv6IfIcmpEntry_t *ill_icmp6_mib; /* Per interface mib */ phyint_t *ill_phyint; uint64_t ill_flags; kmutex_t ill_lock; /* Please see table below */ /* * The ill_nd_lla* fields handle the link layer address option * from neighbor discovery. This is used for external IPv6 * address resolution. */ mblk_t *ill_nd_lla_mp; /* mblk which holds ill_nd_lla */ uint8_t *ill_nd_lla; /* Link Layer Address */ uint_t ill_nd_lla_len; /* Link Layer Address length */ /* * We have 4 phys_addr_req's sent down. This field keeps track * of which one is pending. */ t_uscalar_t ill_phys_addr_pend; /* which dl_phys_addr_req pending */ /* * Used to save errors that occur during plumbing */ uint_t ill_ifname_pending_err; avl_node_t ill_avl_byppa; /* avl node based on ppa */ list_t ill_nce; /* pointer to nce_s list */ uint_t ill_refcnt; /* active refcnt by threads */ uint_t ill_ire_cnt; /* ires associated with this ill */ kcondvar_t ill_cv; uint_t ill_ncec_cnt; /* ncecs associated with this ill */ uint_t ill_nce_cnt; /* nces associated with this ill */ uint_t ill_waiters; /* threads waiting in ipsq_enter */ /* * Contains the upper read queue pointer of the module immediately * beneath IP. This field allows IP to validate sub-capability * acknowledgments coming up from downstream. */ queue_t *ill_lmod_rq; /* read queue pointer of module below */ uint_t ill_lmod_cnt; /* number of modules beneath IP */ ip_m_t *ill_media; /* media specific params/functions */ t_uscalar_t ill_dlpi_pending; /* Last DLPI primitive issued */ uint_t ill_usesrc_ifindex; /* use src addr from this ILL */ struct ill_s *ill_usesrc_grp_next; /* Next ILL in the usesrc group */ boolean_t ill_trace_disable; /* True when alloc fails */ zoneid_t ill_zoneid; ip_stack_t *ill_ipst; /* Corresponds to a netstack_hold */ uint32_t ill_dhcpinit; /* IP_DHCPINIT_IFs for ill */ void *ill_flownotify_mh; /* Tx flow ctl, mac cb handle */ uint_t ill_ilm_cnt; /* ilms referencing this ill */ uint_t ill_ipallmulti_cnt; /* ip_join_allmulti() calls */ ilm_t *ill_ipallmulti_ilm; mblk_t *ill_saved_ire_mp; /* Allocated for each extra IRE */ /* with ire_ill set so they can */ /* survive the ill going down and up. */ kmutex_t ill_saved_ire_lock; /* Protects ill_saved_ire_mp, cnt */ uint_t ill_saved_ire_cnt; /* # entries */ struct arl_ill_common_s *ill_common; ire_t *ill_ire_multicast; /* IRE_MULTICAST for ill */ clock_t ill_defend_start; /* start of 1 hour period */ uint_t ill_defend_count; /* # of announce/defends per ill */ /* * IPMP fields. */ ipmp_illgrp_t *ill_grp; /* IPMP group information */ list_node_t ill_actnode; /* next active ill in group */ list_node_t ill_grpnode; /* next ill in group */ ipif_t *ill_src_ipif; /* source address selection rotor */ ipif_t *ill_move_ipif; /* ipif awaiting move to new ill */ boolean_t ill_nom_cast; /* nominated for mcast/bcast */ uint_t ill_bound_cnt; /* # of data addresses bound to ill */ ipif_t *ill_bound_ipif; /* ipif chain bound to ill */ timeout_id_t ill_refresh_tid; /* ill refresh retry timeout id */ uint32_t ill_mrouter_cnt; /* mrouter allmulti joins */ } ill_t; /* * ILL_FREE_OK() means that there are no incoming pointer references * to the ill. */ #define ILL_FREE_OK(ill) \ ((ill)->ill_ire_cnt == 0 && (ill)->ill_ilm_cnt == 0 && \ (ill)->ill_ncec_cnt == 0 && (ill)->ill_nce_cnt == 0) /* * An ipif/ill can be marked down only when the ire and ncec references * to that ipif/ill goes to zero. ILL_DOWN_OK() is a necessary condition * quiescence checks. See comments above IPIF_DOWN_OK for details * on why ires and nces are selectively considered for this macro. */ #define ILL_DOWN_OK(ill) \ (ill->ill_ire_cnt == 0 && ill->ill_ncec_cnt == 0 && \ ill->ill_nce_cnt == 0) /* * The following table lists the protection levels of the various members * of the ill_t. Same notation as that used for ipif_t above is used. * * Write Read * * ill_ifptr ill_g_lock + s Write once * ill_rq ipsq Write once * ill_wq ipsq Write once * * ill_error ipsq None * ill_ipif ill_g_lock + ipsq ill_g_lock OR ipsq * ill_ipif_up_count ill_lock + ipsq ill_lock OR ipsq * ill_max_frag ill_lock ill_lock * ill_current_frag ill_lock ill_lock * * ill_name ill_g_lock + ipsq Write once * ill_name_length ill_g_lock + ipsq Write once * ill_ndd_name ipsq Write once * ill_net_type ipsq Write once * ill_ppa ill_g_lock + ipsq Write once * ill_sap ipsq + down ill Write once * ill_sap_length ipsq + down ill Write once * ill_phys_addr_length ipsq + down ill Write once * * ill_bcast_addr_length ipsq ipsq * ill_mactype ipsq ipsq * ill_frag_ptr ipsq ipsq * * ill_frag_timer_id ill_lock ill_lock * ill_frag_hash_tbl ipsq up ill * ill_ilm ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_global_timer ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_type ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_v1_time ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_v2_time ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_v1_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_v2_tset ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_rv ill_mcast_lock(WRITER) ill_mcast_lock(READER) * ill_mcast_qi ill_mcast_lock(WRITER) ill_mcast_lock(READER) * * ill_down_mp ipsq ipsq * ill_dlpi_deferred ill_lock ill_lock * ill_dlpi_pending ipsq + ill_lock ipsq or ill_lock or * absence of ipsq writer. * ill_phys_addr_mp ipsq + down ill only when ill is up * ill_mcast_deferred ill_lock ill_lock * ill_phys_addr ipsq + down ill only when ill is up * ill_dest_addr_mp ipsq + down ill only when ill is up * ill_dest_addr ipsq + down ill only when ill is up * * ill_state_flags ill_lock ill_lock * exclusive bit flags ipsq_t ipsq_t * shared bit flags ill_lock ill_lock * * ill_muxid ipsq Not atomic * * ill_ipf_gen Not atomic * ill_frag_count atomics atomics * ill_type ipsq + down ill only when ill is up * ill_dlpi_multicast_state ill_lock ill_lock * ill_dlpi_fastpath_state ill_lock ill_lock * ill_dlpi_capab_state ipsq ipsq * ill_max_hops ipsq Not atomic * * ill_mtu ill_lock None * * ill_user_mtu ipsq + ill_lock ill_lock * ill_reachable_time ipsq + ill_lock ill_lock * ill_reachable_retrans_time ipsq + ill_lock ill_lock * ill_max_buf ipsq + ill_lock ill_lock * * Next 2 fields need ill_lock because of the get ioctls. They should not * report partially updated results without executing in the ipsq. * ill_token ipsq + ill_lock ill_lock * ill_token_length ipsq + ill_lock ill_lock * ill_dest_token ipsq + down ill only when ill is up * ill_xmit_count ipsq + down ill write once * ill_ip6_mib ipsq + down ill only when ill is up * ill_icmp6_mib ipsq + down ill only when ill is up * * ill_phyint ipsq, ill_g_lock, ill_lock Any of them * ill_flags ill_lock ill_lock * ill_nd_lla_mp ipsq + down ill only when ill is up * ill_nd_lla ipsq + down ill only when ill is up * ill_nd_lla_len ipsq + down ill only when ill is up * ill_phys_addr_pend ipsq + down ill only when ill is up * ill_ifname_pending_err ipsq ipsq * ill_avl_byppa ipsq, ill_g_lock write once * * ill_fastpath_list ill_lock ill_lock * ill_refcnt ill_lock ill_lock * ill_ire_cnt ill_lock ill_lock * ill_cv ill_lock ill_lock * ill_ncec_cnt ill_lock ill_lock * ill_nce_cnt ill_lock ill_lock * ill_ilm_cnt ill_lock ill_lock * ill_src_ipif ill_g_lock ill_g_lock * ill_trace ill_lock ill_lock * ill_usesrc_grp_next ill_g_usesrc_lock ill_g_usesrc_lock * ill_dhcpinit atomics atomics * ill_flownotify_mh write once write once * ill_capab_pending_cnt ipsq ipsq * ill_ipallmulti_cnt ill_lock ill_lock * ill_ipallmulti_ilm ill_lock ill_lock * ill_saved_ire_mp ill_saved_ire_lock ill_saved_ire_lock * ill_saved_ire_cnt ill_saved_ire_lock ill_saved_ire_lock * ill_arl ??? ??? * ill_ire_multicast ipsq + quiescent none * ill_bound_ipif ipsq ipsq * ill_actnode ipsq + ipmp_lock ipsq OR ipmp_lock * ill_grpnode ipsq + ill_g_lock ipsq OR ill_g_lock * ill_src_ipif ill_g_lock ill_g_lock * ill_move_ipif ipsq ipsq * ill_nom_cast ipsq ipsq OR advisory * ill_refresh_tid ill_lock ill_lock * ill_grp (for IPMP ill) write once write once * ill_grp (for underlying ill) ipsq + ill_g_lock ipsq OR ill_g_lock * ill_grp_pending ill_mcast_serializer ill_mcast_serializer * ill_mrouter_cnt atomics atomics * * NOTE: It's OK to make heuristic decisions on an underlying interface * by using IS_UNDER_IPMP() or comparing ill_grp's raw pointer value. */ /* * For ioctl restart mechanism see ip_reprocess_ioctl() */ struct ip_ioctl_cmd_s; typedef int (*ifunc_t)(ipif_t *, struct sockaddr_in *, queue_t *, mblk_t *, struct ip_ioctl_cmd_s *, void *); typedef struct ip_ioctl_cmd_s { int ipi_cmd; size_t ipi_copyin_size; uint_t ipi_flags; uint_t ipi_cmd_type; ifunc_t ipi_func; ifunc_t ipi_func_restart; } ip_ioctl_cmd_t; /* * ipi_cmd_type: * * IF_CMD 1 old style ifreq cmd * LIF_CMD 2 new style lifreq cmd * ARP_CMD 3 arpreq cmd * XARP_CMD 4 xarpreq cmd * MSFILT_CMD 5 multicast source filter cmd * MISC_CMD 6 misc cmd (not a more specific one above) */ enum { IF_CMD = 1, LIF_CMD, ARP_CMD, XARP_CMD, MSFILT_CMD, MISC_CMD }; #define IPI_DONTCARE 0 /* For ioctl encoded values that don't matter */ /* Flag values in ipi_flags */ #define IPI_PRIV 0x1 /* Root only command */ #define IPI_MODOK 0x2 /* Permitted on mod instance of IP */ #define IPI_WR 0x4 /* Need to grab writer access */ #define IPI_GET_CMD 0x8 /* branch to mi_copyout on success */ /* unused 0x10 */ #define IPI_NULL_BCONT 0x20 /* ioctl has not data and hence no b_cont */ extern ip_ioctl_cmd_t ip_ndx_ioctl_table[]; extern ip_ioctl_cmd_t ip_misc_ioctl_table[]; extern int ip_ndx_ioctl_count; extern int ip_misc_ioctl_count; /* Passed down by ARP to IP during I_PLINK/I_PUNLINK */ typedef struct ipmx_s { char ipmx_name[LIFNAMSIZ]; /* if name */ uint_t ipmx_arpdev_stream : 1, /* This is the arp stream */ ipmx_notused : 31; } ipmx_t; /* * State for detecting if a driver supports certain features. * Support for DL_ENABMULTI_REQ uses ill_dlpi_multicast_state. * Support for DLPI M_DATA fastpath uses ill_dlpi_fastpath_state. */ #define IDS_UNKNOWN 0 /* No DLPI request sent */ #define IDS_INPROGRESS 1 /* DLPI request sent */ #define IDS_OK 2 /* DLPI request completed successfully */ #define IDS_FAILED 3 /* DLPI request failed */ /* Support for DL_CAPABILITY_REQ uses ill_dlpi_capab_state. */ enum { IDCS_UNKNOWN, IDCS_PROBE_SENT, IDCS_OK, IDCS_RESET_SENT, IDCS_RENEG, IDCS_FAILED }; /* Extended NDP Management Structure */ typedef struct ipndp_s { ndgetf_t ip_ndp_getf; ndsetf_t ip_ndp_setf; caddr_t ip_ndp_data; char *ip_ndp_name; } ipndp_t; /* IXA Notification types */ typedef enum { IXAN_LSO, /* LSO capability change */ IXAN_PMTU, /* PMTU change */ IXAN_ZCOPY /* ZEROCOPY capability change */ } ixa_notify_type_t; typedef uint_t ixa_notify_arg_t; typedef void (*ixa_notify_t)(void *, ip_xmit_attr_t *ixa, ixa_notify_type_t, ixa_notify_arg_t); /* * Attribute flags that are common to the transmit and receive attributes */ #define IAF_IS_IPV4 0x80000000 /* ipsec_*_v4 */ #define IAF_TRUSTED_ICMP 0x40000000 /* ipsec_*_icmp_loopback */ #define IAF_NO_LOOP_ZONEID_SET 0x20000000 /* Zone that shouldn't have */ /* a copy */ #define IAF_LOOPBACK_COPY 0x10000000 /* For multi and broadcast */ #define IAF_MASK 0xf0000000 /* Flags that are common */ /* * Transmit side attributes used between the transport protocols and IP as * well as inside IP. It is also used to cache information in the conn_t i.e. * replaces conn_ire and the IPsec caching in the conn_t. */ struct ip_xmit_attr_s { iaflags_t ixa_flags; /* IXAF_*. See below */ uint32_t ixa_free_flags; /* IXA_FREE_*. See below */ uint32_t ixa_refcnt; /* Using atomics */ /* * Always initialized independently of ixa_flags settings. * Used by ip_xmit so we keep them up front for cache locality. */ uint32_t ixa_xmit_hint; /* For ECMP and GLD TX ring fanout */ uint_t ixa_pktlen; /* Always set. For frag and stats */ zoneid_t ixa_zoneid; /* Assumed always set */ /* Always set for conn_ip_output(); might be stale */ /* * Since TCP keeps the conn_t around past the process going away * we need to use the "notr" (e.g, ire_refhold_notr) for ixa_ire, * ixa_nce, and ixa_dce. */ ire_t *ixa_ire; /* Forwarding table entry */ uint_t ixa_ire_generation; nce_t *ixa_nce; /* Neighbor cache entry */ dce_t *ixa_dce; /* Destination cache entry */ uint_t ixa_dce_generation; uint_t ixa_src_generation; /* If IXAF_VERIFY_SOURCE */ uint32_t ixa_src_preferences; /* prefs for src addr select */ uint32_t ixa_pmtu; /* IXAF_VERIFY_PMTU */ /* Set by ULP if IXAF_VERIFY_PMTU; otherwise set by IP */ uint32_t ixa_fragsize; int8_t ixa_use_min_mtu; /* IXAF_USE_MIN_MTU values */ pfirepostfrag_t ixa_postfragfn; /* Set internally in IP */ in6_addr_t ixa_nexthop_v6; /* IXAF_NEXTHOP_SET */ #define ixa_nexthop_v4 V4_PART_OF_V6(ixa_nexthop_v6) zoneid_t ixa_no_loop_zoneid; /* IXAF_NO_LOOP_ZONEID_SET */ uint_t ixa_scopeid; /* For IPv6 link-locals */ uint_t ixa_broadcast_ttl; /* IXAF_BROACAST_TTL_SET */ uint_t ixa_multicast_ttl; /* Assumed set for multicast */ uint_t ixa_multicast_ifindex; /* Assumed set for multicast */ ipaddr_t ixa_multicast_ifaddr; /* Assumed set for multicast */ int ixa_raw_cksum_offset; /* If IXAF_SET_RAW_CKSUM */ uint32_t ixa_ident; /* For IPv6 fragment header */ uint64_t ixa_conn_id; /* Used by DTrace */ /* * Cached LSO information. */ ill_lso_capab_t ixa_lso_capab; /* Valid when IXAF_LSO_CAPAB */ uint64_t ixa_ipsec_policy_gen; /* Generation from iph_gen */ /* * The following IPsec fields are only initialized when * IXAF_IPSEC_SECURE is set. Otherwise they contain garbage. */ ipsec_latch_t *ixa_ipsec_latch; /* Just the ids */ struct ipsa_s *ixa_ipsec_ah_sa; /* Hard reference SA for AH */ struct ipsa_s *ixa_ipsec_esp_sa; /* Hard reference SA for ESP */ struct ipsec_policy_s *ixa_ipsec_policy; /* why are we here? */ struct ipsec_action_s *ixa_ipsec_action; /* For reflected packets */ ipsa_ref_t ixa_ipsec_ref[2]; /* Soft reference to SA */ /* 0: ESP, 1: AH */ /* * The selectors here are potentially different than the SPD rule's * selectors, and we need to have both available for IKEv2. * * NOTE: "Source" and "Dest" are w.r.t. outbound datagrams. Ports can * be zero, and the protocol number is needed to make the ports * significant. */ uint16_t ixa_ipsec_src_port; /* Source port number of d-gram. */ uint16_t ixa_ipsec_dst_port; /* Destination port number of d-gram. */ uint8_t ixa_ipsec_icmp_type; /* ICMP type of d-gram */ uint8_t ixa_ipsec_icmp_code; /* ICMP code of d-gram */ sa_family_t ixa_ipsec_inaf; /* Inner address family */ #define IXA_MAX_ADDRLEN 4 /* Max addr len. (in 32-bit words) */ uint32_t ixa_ipsec_insrc[IXA_MAX_ADDRLEN]; /* Inner src address */ uint32_t ixa_ipsec_indst[IXA_MAX_ADDRLEN]; /* Inner dest address */ uint8_t ixa_ipsec_insrcpfx; /* Inner source prefix */ uint8_t ixa_ipsec_indstpfx; /* Inner destination prefix */ uint8_t ixa_ipsec_proto; /* IP protocol number for d-gram. */ /* Always initialized independently of ixa_flags settings */ uint_t ixa_ifindex; /* Assumed always set */ uint16_t ixa_ip_hdr_length; /* Points to ULP header */ uint8_t ixa_protocol; /* Protocol number for ULP cksum */ ts_label_t *ixa_tsl; /* Always set. NULL if not TX */ ip_stack_t *ixa_ipst; /* Always set */ uint32_t ixa_extra_ident; /* Set if LSO */ cred_t *ixa_cred; /* For getpeerucred */ pid_t ixa_cpid; /* For getpeerucred */ #ifdef DEBUG kthread_t *ixa_curthread; /* For serialization assert */ #endif squeue_t *ixa_sqp; /* Set from conn_sqp as a hint */ uintptr_t ixa_cookie; /* cookie to use for tx flow control */ /* * Must be set by ULP if any of IXAF_VERIFY_LSO, IXAF_VERIFY_PMTU, * or IXAF_VERIFY_ZCOPY is set. */ ixa_notify_t ixa_notify; /* Registered upcall notify function */ void *ixa_notify_cookie; /* ULP cookie for ixa_notify */ }; /* * Flags to indicate which transmit attributes are set. * Split into "xxx_SET" ones which indicate that the "xxx" field it set, and * single flags. */ #define IXAF_REACH_CONF 0x00000001 /* Reachability confirmation */ #define IXAF_BROADCAST_TTL_SET 0x00000002 /* ixa_broadcast_ttl valid */ #define IXAF_SET_SOURCE 0x00000004 /* Replace if broadcast */ #define IXAF_USE_MIN_MTU 0x00000008 /* IPV6_USE_MIN_MTU */ #define IXAF_DONTFRAG 0x00000010 /* IP*_DONTFRAG */ #define IXAF_VERIFY_PMTU 0x00000020 /* ixa_pmtu/ixa_fragsize set */ #define IXAF_PMTU_DISCOVERY 0x00000040 /* Create/use PMTU state */ #define IXAF_MULTICAST_LOOP 0x00000080 /* IP_MULTICAST_LOOP */ #define IXAF_IPSEC_SECURE 0x00000100 /* Need IPsec processing */ #define IXAF_UCRED_TSL 0x00000200 /* ixa_tsl from SCM_UCRED */ #define IXAF_DONTROUTE 0x00000400 /* SO_DONTROUTE */ #define IXAF_NO_IPSEC 0x00000800 /* Ignore policy */ #define IXAF_PMTU_TOO_SMALL 0x00001000 /* PMTU too small */ #define IXAF_SET_ULP_CKSUM 0x00002000 /* Calculate ULP checksum */ #define IXAF_VERIFY_SOURCE 0x00004000 /* Check that source is ok */ #define IXAF_NEXTHOP_SET 0x00008000 /* ixa_nexthop set */ #define IXAF_PMTU_IPV4_DF 0x00010000 /* Set IPv4 DF */ #define IXAF_NO_DEV_FLOW_CTL 0x00020000 /* Protocol needs no flow ctl */ #define IXAF_NO_TTL_CHANGE 0x00040000 /* Internal to IP */ #define IXAF_IPV6_ADD_FRAGHDR 0x00080000 /* Add fragment header */ #define IXAF_IPSEC_TUNNEL 0x00100000 /* Tunnel mode */ #define IXAF_NO_PFHOOK 0x00200000 /* Skip xmit pfhook */ #define IXAF_NO_TRACE 0x00400000 /* When back from ARP/ND */ #define IXAF_SCOPEID_SET 0x00800000 /* ixa_scopeid set */ #define IXAF_MULTIRT_MULTICAST 0x01000000 /* MULTIRT for multicast */ #define IXAF_NO_HW_CKSUM 0x02000000 /* Force software cksum */ #define IXAF_SET_RAW_CKSUM 0x04000000 /* Use ixa_raw_cksum_offset */ #define IXAF_IPSEC_GLOBAL_POLICY 0x08000000 /* Policy came from global */ /* Note the following uses bits 0x10000000 through 0x80000000 */ #define IXAF_IS_IPV4 IAF_IS_IPV4 #define IXAF_TRUSTED_ICMP IAF_TRUSTED_ICMP #define IXAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET #define IXAF_LOOPBACK_COPY IAF_LOOPBACK_COPY /* Note: use the upper 32 bits */ #define IXAF_VERIFY_LSO 0x100000000 /* Check LSO capability */ #define IXAF_LSO_CAPAB 0x200000000 /* Capable of LSO */ #define IXAF_VERIFY_ZCOPY 0x400000000 /* Check Zero Copy capability */ #define IXAF_ZCOPY_CAPAB 0x800000000 /* Capable of ZEROCOPY */ /* * The normal flags for sending packets e.g., icmp errors */ #define IXAF_BASIC_SIMPLE_V4 \ (IXAF_SET_ULP_CKSUM | IXAF_IS_IPV4 | IXAF_VERIFY_SOURCE) #define IXAF_BASIC_SIMPLE_V6 (IXAF_SET_ULP_CKSUM | IXAF_VERIFY_SOURCE) /* * Normally these fields do not have a hold. But in some cases they do, for * instance when we've gone through ip_*_attr_to/from_mblk. * We use ixa_free_flags to indicate that they have a hold and need to be * released on cleanup. */ #define IXA_FREE_CRED 0x00000001 /* ixa_cred needs to be rele */ #define IXA_FREE_TSL 0x00000002 /* ixa_tsl needs to be rele */ /* * Simplistic way to set the ixa_xmit_hint for locally generated traffic * and forwarded traffic. The shift amount are based on the size of the * structs to discard the low order bits which don't have much if any variation * (coloring in kmem_cache_alloc might provide some variation). * * Basing the locally generated hint on the address of the conn_t means that * the packets from the same socket/connection do not get reordered. * Basing the hint for forwarded traffic on the ill_ring_t means that * packets from the same NIC+ring are likely to use the same outbound ring * hence we get low contention on the ring in the transmitting driver. */ #define CONN_TO_XMIT_HINT(connp) ((uint32_t)(((uintptr_t)connp) >> 11)) #define ILL_RING_TO_XMIT_HINT(ring) ((uint32_t)(((uintptr_t)ring) >> 7)) /* * IP set Destination Flags used by function ip_set_destination, * ip_attr_connect, and conn_connect. */ #define IPDF_ALLOW_MCBC 0x1 /* Allow multi/broadcast */ #define IPDF_VERIFY_DST 0x2 /* Verify destination addr */ #define IPDF_SELECT_SRC 0x4 /* Select source address */ #define IPDF_LSO 0x8 /* Try LSO */ #define IPDF_IPSEC 0x10 /* Set IPsec policy */ #define IPDF_ZONE_IS_GLOBAL 0x20 /* From conn_zone_is_global */ #define IPDF_ZCOPY 0x40 /* Try ZEROCOPY */ #define IPDF_UNIQUE_DCE 0x80 /* Get a per-destination DCE */ /* * Receive side attributes used between the transport protocols and IP as * well as inside IP. */ struct ip_recv_attr_s { iaflags_t ira_flags; /* See below */ uint32_t ira_free_flags; /* IRA_FREE_*. See below */ /* * This is a hint for TCP SYN packets. * Always initialized independently of ira_flags settings */ squeue_t *ira_sqp; ill_rx_ring_t *ira_ring; /* Internal to IP */ /* For ip_accept_tcp when IRAF_TARGET_SQP is set */ squeue_t *ira_target_sqp; mblk_t *ira_target_sqp_mp; /* Always initialized independently of ira_flags settings */ uint32_t ira_xmit_hint; /* For ECMP and GLD TX ring fanout */ zoneid_t ira_zoneid; /* ALL_ZONES unless local delivery */ uint_t ira_pktlen; /* Always set. For frag and stats */ uint16_t ira_ip_hdr_length; /* Points to ULP header */ uint8_t ira_protocol; /* Protocol number for ULP cksum */ uint_t ira_rifindex; /* Received ifindex */ uint_t ira_ruifindex; /* Received upper ifindex */ ts_label_t *ira_tsl; /* Always set. NULL if not TX */ /* * ira_rill and ira_ill is set inside IP, but not when conn_recv is * called; ULPs should use ira_ruifindex instead. */ ill_t *ira_rill; /* ill where packet came */ ill_t *ira_ill; /* ill where IP address hosted */ cred_t *ira_cred; /* For getpeerucred */ pid_t ira_cpid; /* For getpeerucred */ /* Used when IRAF_VERIFIED_SRC is set; this source was ok */ ipaddr_t ira_verified_src; /* * The following IPsec fields are only initialized when * IRAF_IPSEC_SECURE is set. Otherwise they contain garbage. */ struct ipsec_action_s *ira_ipsec_action; /* how we made it in.. */ struct ipsa_s *ira_ipsec_ah_sa; /* SA for AH */ struct ipsa_s *ira_ipsec_esp_sa; /* SA for ESP */ ipaddr_t ira_mroute_tunnel; /* IRAF_MROUTE_TUNNEL_SET */ zoneid_t ira_no_loop_zoneid; /* IRAF_NO_LOOP_ZONEID_SET */ uint32_t ira_esp_udp_ports; /* IRAF_ESP_UDP_PORTS */ /* * For IP_RECVSLLA and ip_ndp_conflict/find_solicitation. * Same size as max for sockaddr_dl */ #define IRA_L2SRC_SIZE 244 uint8_t ira_l2src[IRA_L2SRC_SIZE]; /* If IRAF_L2SRC_SET */ /* * Local handle that we use to do lazy setting of ira_l2src. * We defer setting l2src until needed but we do before any * ip_input pullupmsg or copymsg. */ struct mac_header_info_s *ira_mhip; /* Could be NULL */ }; /* * Flags to indicate which receive attributes are set. */ #define IRAF_SYSTEM_LABELED 0x00000001 /* is_system_labeled() */ #define IRAF_IPV4_OPTIONS 0x00000002 /* Performance */ #define IRAF_MULTICAST 0x00000004 /* Was multicast at L3 */ #define IRAF_BROADCAST 0x00000008 /* Was broadcast at L3 */ #define IRAF_MULTIBROADCAST (IRAF_MULTICAST|IRAF_BROADCAST) #define IRAF_LOOPBACK 0x00000010 /* Looped back by IP */ #define IRAF_VERIFY_IP_CKSUM 0x00000020 /* Need to verify IP */ #define IRAF_VERIFY_ULP_CKSUM 0x00000040 /* Need to verify TCP,UDP,etc */ #define IRAF_SCTP_CSUM_ERR 0x00000080 /* sctp pkt has failed chksum */ #define IRAF_IPSEC_SECURE 0x00000100 /* Passed AH and/or ESP */ #define IRAF_DHCP_UNICAST 0x00000200 #define IRAF_IPSEC_DECAPS 0x00000400 /* Was packet decapsulated */ /* from a matching inner packet? */ #define IRAF_TARGET_SQP 0x00000800 /* ira_target_sqp is set */ #define IRAF_VERIFIED_SRC 0x00001000 /* ira_verified_src set */ #define IRAF_RSVP 0x00002000 /* RSVP packet for rsvpd */ #define IRAF_MROUTE_TUNNEL_SET 0x00004000 /* From ip_mroute_decap */ #define IRAF_PIM_REGISTER 0x00008000 /* From register_mforward */ #define IRAF_TX_MAC_EXEMPTABLE 0x00010000 /* Allow MAC_EXEMPT readdown */ #define IRAF_TX_SHARED_ADDR 0x00020000 /* Arrived on ALL_ZONES addr */ #define IRAF_ESP_UDP_PORTS 0x00040000 /* NAT-traversal packet */ #define IRAF_NO_HW_CKSUM 0x00080000 /* Force software cksum */ #define IRAF_ICMP_ERROR 0x00100000 /* Send to conn_recvicmp */ #define IRAF_ROUTER_ALERT 0x00200000 /* IPv6 router alert */ #define IRAF_L2SRC_SET 0x00400000 /* ira_l2src has been set */ #define IRAF_L2SRC_LOOPBACK 0x00800000 /* Came from us */ #define IRAF_L2DST_MULTICAST 0x01000000 /* Multicast at L2 */ #define IRAF_L2DST_BROADCAST 0x02000000 /* Broadcast at L2 */ /* Unused 0x04000000 */ /* Unused 0x08000000 */ /* Below starts with 0x10000000 */ #define IRAF_IS_IPV4 IAF_IS_IPV4 #define IRAF_TRUSTED_ICMP IAF_TRUSTED_ICMP #define IRAF_NO_LOOP_ZONEID_SET IAF_NO_LOOP_ZONEID_SET #define IRAF_LOOPBACK_COPY IAF_LOOPBACK_COPY /* * Normally these fields do not have a hold. But in some cases they do, for * instance when we've gone through ip_*_attr_to/from_mblk. * We use ira_free_flags to indicate that they have a hold and need to be * released on cleanup. */ #define IRA_FREE_CRED 0x00000001 /* ira_cred needs to be rele */ #define IRA_FREE_TSL 0x00000002 /* ira_tsl needs to be rele */ /* * Optional destination cache entry for path MTU information, * and ULP metrics. */ struct dce_s { uint_t dce_generation; /* Changed since cached? */ uint_t dce_flags; /* See below */ uint_t dce_ipversion; /* IPv4/IPv6 version */ uint32_t dce_pmtu; /* Path MTU if DCEF_PMTU */ uint32_t dce_ident; /* Per destination IP ident. */ iulp_t dce_uinfo; /* Metrics if DCEF_UINFO */ struct dce_s *dce_next; struct dce_s **dce_ptpn; struct dcb_s *dce_bucket; union { in6_addr_t dceu_v6addr; ipaddr_t dceu_v4addr; } dce_u; #define dce_v4addr dce_u.dceu_v4addr #define dce_v6addr dce_u.dceu_v6addr /* Note that for IPv6+IPMP we use the ifindex for the upper interface */ uint_t dce_ifindex; /* For IPv6 link-locals */ kmutex_t dce_lock; uint_t dce_refcnt; uint64_t dce_last_change_time; /* Path MTU. In seconds */ ip_stack_t *dce_ipst; /* Does not have a netstack_hold */ }; /* * Values for dce_generation. * * If a DCE has DCE_GENERATION_CONDEMNED, the last dce_refrele should delete * it. * * DCE_GENERATION_VERIFY is never stored in dce_generation but it is * stored in places that cache DCE (such as ixa_dce_generation). * It is used as a signal that the cache is stale and needs to be reverified. */ #define DCE_GENERATION_CONDEMNED 0 #define DCE_GENERATION_VERIFY 1 #define DCE_GENERATION_INITIAL 2 #define DCE_IS_CONDEMNED(dce) \ ((dce)->dce_generation == DCE_GENERATION_CONDEMNED) /* * Values for ips_src_generation. * * SRC_GENERATION_VERIFY is never stored in ips_src_generation but it is * stored in places that cache IREs (ixa_src_generation). It is used as a * signal that the cache is stale and needs to be reverified. */ #define SRC_GENERATION_VERIFY 0 #define SRC_GENERATION_INITIAL 1 /* * The kernel stores security attributes of all gateways in a database made * up of one or more tsol_gcdb_t elements. Each tsol_gcdb_t contains the * security-related credentials of the gateway. More than one gateways may * share entries in the database. * * The tsol_gc_t structure represents the gateway to credential association, * and refers to an entry in the database. One or more tsol_gc_t entities are * grouped together to form one or more tsol_gcgrp_t, each representing the * list of security attributes specific to the gateway. A gateway may be * associated with at most one credentials group. */ struct tsol_gcgrp_s; extern uchar_t ip6opt_ls; /* TX IPv6 enabler */ /* * Gateway security credential record. */ typedef struct tsol_gcdb_s { uint_t gcdb_refcnt; /* reference count */ struct rtsa_s gcdb_attr; /* security attributes */ #define gcdb_mask gcdb_attr.rtsa_mask #define gcdb_doi gcdb_attr.rtsa_doi #define gcdb_slrange gcdb_attr.rtsa_slrange } tsol_gcdb_t; /* * Gateway to credential association. */ typedef struct tsol_gc_s { uint_t gc_refcnt; /* reference count */ struct tsol_gcgrp_s *gc_grp; /* pointer to group */ struct tsol_gc_s *gc_prev; /* previous in list */ struct tsol_gc_s *gc_next; /* next in list */ tsol_gcdb_t *gc_db; /* pointer to actual credentials */ } tsol_gc_t; /* * Gateway credentials group address. */ typedef struct tsol_gcgrp_addr_s { int ga_af; /* address family */ in6_addr_t ga_addr; /* IPv4 mapped or IPv6 address */ } tsol_gcgrp_addr_t; /* * Gateway credentials group. */ typedef struct tsol_gcgrp_s { uint_t gcgrp_refcnt; /* reference count */ krwlock_t gcgrp_rwlock; /* lock to protect following */ uint_t gcgrp_count; /* number of credentials */ tsol_gc_t *gcgrp_head; /* first credential in list */ tsol_gc_t *gcgrp_tail; /* last credential in list */ tsol_gcgrp_addr_t gcgrp_addr; /* next-hop gateway address */ } tsol_gcgrp_t; extern kmutex_t gcgrp_lock; #define GC_REFRELE(p) { \ ASSERT((p)->gc_grp != NULL); \ rw_enter(&(p)->gc_grp->gcgrp_rwlock, RW_WRITER); \ ASSERT((p)->gc_refcnt > 0); \ if (--((p)->gc_refcnt) == 0) \ gc_inactive(p); \ else \ rw_exit(&(p)->gc_grp->gcgrp_rwlock); \ } #define GCGRP_REFHOLD(p) { \ mutex_enter(&gcgrp_lock); \ ++((p)->gcgrp_refcnt); \ ASSERT((p)->gcgrp_refcnt != 0); \ mutex_exit(&gcgrp_lock); \ } #define GCGRP_REFRELE(p) { \ mutex_enter(&gcgrp_lock); \ ASSERT((p)->gcgrp_refcnt > 0); \ if (--((p)->gcgrp_refcnt) == 0) \ gcgrp_inactive(p); \ ASSERT(MUTEX_HELD(&gcgrp_lock)); \ mutex_exit(&gcgrp_lock); \ } /* * IRE gateway security attributes structure, pointed to by tsol_ire_gw_secattr */ struct tsol_tnrhc; struct tsol_ire_gw_secattr_s { kmutex_t igsa_lock; /* lock to protect following */ struct tsol_tnrhc *igsa_rhc; /* host entry for gateway */ tsol_gc_t *igsa_gc; /* for prefix IREs */ }; void irb_refrele_ftable(irb_t *); extern struct kmem_cache *rt_entry_cache; typedef struct ire4 { ipaddr_t ire4_mask; /* Mask for matching this IRE. */ ipaddr_t ire4_addr; /* Address this IRE represents. */ ipaddr_t ire4_gateway_addr; /* Gateway including for IRE_ONLINK */ ipaddr_t ire4_setsrc_addr; /* RTF_SETSRC */ } ire4_t; typedef struct ire6 { in6_addr_t ire6_mask; /* Mask for matching this IRE. */ in6_addr_t ire6_addr; /* Address this IRE represents. */ in6_addr_t ire6_gateway_addr; /* Gateway including for IRE_ONLINK */ in6_addr_t ire6_setsrc_addr; /* RTF_SETSRC */ } ire6_t; typedef union ire_addr { ire6_t ire6_u; ire4_t ire4_u; } ire_addr_u_t; /* * Internet Routing Entry * When we have multiple identical IREs we logically add them by manipulating * ire_identical_ref and ire_delete first decrements * that and when it reaches 1 we know it is the last IRE. * "identical" is defined as being the same for: * ire_addr, ire_netmask, ire_gateway, ire_ill, ire_zoneid, and ire_type * For instance, multiple IRE_BROADCASTs for the same subnet number are * viewed as identical, and so are the IRE_INTERFACEs when there are * multiple logical interfaces (on the same ill) with the same subnet prefix. */ struct ire_s { struct ire_s *ire_next; /* The hash chain must be first. */ struct ire_s **ire_ptpn; /* Pointer to previous next. */ uint32_t ire_refcnt; /* Number of references */ ill_t *ire_ill; uint32_t ire_identical_ref; /* IRE_INTERFACE, IRE_BROADCAST */ uchar_t ire_ipversion; /* IPv4/IPv6 version */ ushort_t ire_type; /* Type of IRE */ uint_t ire_generation; /* Generation including CONDEMNED */ uint_t ire_ib_pkt_count; /* Inbound packets for ire_addr */ uint_t ire_ob_pkt_count; /* Outbound packets to ire_addr */ time_t ire_create_time; /* Time (in secs) IRE was created. */ uint32_t ire_flags; /* flags related to route (RTF_*) */ /* * ire_testhidden is TRUE for INTERFACE IREs of IS_UNDER_IPMP(ill) * interfaces */ boolean_t ire_testhidden; pfirerecv_t ire_recvfn; /* Receive side handling */ pfiresend_t ire_sendfn; /* Send side handling */ pfirepostfrag_t ire_postfragfn; /* Bottom end of send handling */ uint_t ire_masklen; /* # bits in ire_mask{,_v6} */ ire_addr_u_t ire_u; /* IPv4/IPv6 address info. */ irb_t *ire_bucket; /* Hash bucket when ire_ptphn is set */ kmutex_t ire_lock; clock_t ire_last_used_time; /* For IRE_LOCAL reception */ tsol_ire_gw_secattr_t *ire_gw_secattr; /* gateway security attributes */ zoneid_t ire_zoneid; /* * Cached information of where to send packets that match this route. * The ire_dep_* information is used to determine when ire_nce_cache * needs to be updated. * ire_nce_cache is the fastpath for the Neighbor Cache Entry * for IPv6; arp info for IPv4 * Since this is a cache setup and torn down independently of * applications we need to use nce_ref{rele,hold}_notr for it. */ nce_t *ire_nce_cache; /* * Quick check whether the ire_type and ire_masklen indicates * that the IRE can have ire_nce_cache set i.e., whether it is * IRE_ONLINK and for a single destination. */ boolean_t ire_nce_capable; /* * Dependency tracking so we can safely cache IRE and NCE pointers * in offlink and onlink IREs. * These are locked under the ips_ire_dep_lock rwlock. Write held * when modifying the linkage. * ire_dep_parent (Also chain towards IRE for nexthop) * ire_dep_parent_generation: ire_generation of ire_dep_parent * ire_dep_children (From parent to first child) * ire_dep_sib_next (linked list of siblings) * ire_dep_sib_ptpn (linked list of siblings) * * The parent has a ire_refhold on each child, and each child has * an ire_refhold on its parent. * Since ire_dep_parent is a cache setup and torn down independently of * applications we need to use ire_ref{rele,hold}_notr for it. */ ire_t *ire_dep_parent; ire_t *ire_dep_children; ire_t *ire_dep_sib_next; ire_t **ire_dep_sib_ptpn; /* Pointer to previous next */ uint_t ire_dep_parent_generation; uint_t ire_badcnt; /* Number of times ND_UNREACHABLE */ uint64_t ire_last_badcnt; /* In seconds */ /* ire_defense* and ire_last_used_time are only used on IRE_LOCALs */ uint_t ire_defense_count; /* number of ARP conflicts */ uint_t ire_defense_time; /* last time defended (secs) */ boolean_t ire_trace_disable; /* True when alloc fails */ ip_stack_t *ire_ipst; /* Does not have a netstack_hold */ iulp_t ire_metrics; /* * default and prefix routes that are added without explicitly * specifying the interface are termed "unbound" routes, and will * have ire_unbound set to true. */ boolean_t ire_unbound; }; /* IPv4 compatibility macros */ #define ire_mask ire_u.ire4_u.ire4_mask #define ire_addr ire_u.ire4_u.ire4_addr #define ire_gateway_addr ire_u.ire4_u.ire4_gateway_addr #define ire_setsrc_addr ire_u.ire4_u.ire4_setsrc_addr #define ire_mask_v6 ire_u.ire6_u.ire6_mask #define ire_addr_v6 ire_u.ire6_u.ire6_addr #define ire_gateway_addr_v6 ire_u.ire6_u.ire6_gateway_addr #define ire_setsrc_addr_v6 ire_u.ire6_u.ire6_setsrc_addr /* * Values for ire_generation. * * If an IRE is marked with IRE_IS_CONDEMNED, the last walker of * the bucket should delete this IRE from this bucket. * * IRE_GENERATION_VERIFY is never stored in ire_generation but it is * stored in places that cache IREs (such as ixa_ire_generation and * ire_dep_parent_generation). It is used as a signal that the cache is * stale and needs to be reverified. */ #define IRE_GENERATION_CONDEMNED 0 #define IRE_GENERATION_VERIFY 1 #define IRE_GENERATION_INITIAL 2 #define IRE_IS_CONDEMNED(ire) \ ((ire)->ire_generation == IRE_GENERATION_CONDEMNED) /* Convenient typedefs for sockaddrs */ typedef struct sockaddr_in sin_t; typedef struct sockaddr_in6 sin6_t; /* Name/Value Descriptor. */ typedef struct nv_s { uint64_t nv_value; char *nv_name; } nv_t; #define ILL_FRAG_HASH(s, i) \ ((ntohl(s) ^ ((i) ^ ((i) >> 8))) % ILL_FRAG_HASH_TBL_COUNT) /* * The MAX number of allowed fragmented packets per hash bucket * calculation is based on the most common mtu size of 1500. This limit * will work well for other mtu sizes as well. */ #define COMMON_IP_MTU 1500 #define MAX_FRAG_MIN 10 #define MAX_FRAG_PKTS(ipst) \ MAX(MAX_FRAG_MIN, (2 * (ipst->ips_ip_reass_queue_bytes / \ (COMMON_IP_MTU * ILL_FRAG_HASH_TBL_COUNT)))) /* * Maximum dups allowed per packet. */ extern uint_t ip_max_frag_dups; /* * Per-packet information for received packets and transmitted. * Used by the transport protocols when converting between the packet * and ancillary data and socket options. * * Note: This private data structure and related IPPF_* constant * definitions are exposed to enable compilation of some debugging tools * like lsof which use struct tcp_t in . This is intended to be * a temporary hack and long term alternate interfaces should be defined * to support the needs of such tools and private definitions moved to * private headers. */ struct ip_pkt_s { uint_t ipp_fields; /* Which fields are valid */ in6_addr_t ipp_addr; /* pktinfo src/dst addr */ #define ipp_addr_v4 V4_PART_OF_V6(ipp_addr) uint_t ipp_unicast_hops; /* IPV6_UNICAST_HOPS, IP_TTL */ uint_t ipp_hoplimit; /* IPV6_HOPLIMIT */ uint_t ipp_hopoptslen; uint_t ipp_rthdrdstoptslen; uint_t ipp_rthdrlen; uint_t ipp_dstoptslen; uint_t ipp_fraghdrlen; ip6_hbh_t *ipp_hopopts; ip6_dest_t *ipp_rthdrdstopts; ip6_rthdr_t *ipp_rthdr; ip6_dest_t *ipp_dstopts; ip6_frag_t *ipp_fraghdr; uint8_t ipp_tclass; /* IPV6_TCLASS */ uint8_t ipp_type_of_service; /* IP_TOS */ uint_t ipp_ipv4_options_len; /* Len of IPv4 options */ uint8_t *ipp_ipv4_options; /* Ptr to IPv4 options */ uint_t ipp_label_len_v4; /* Len of TX label for IPv4 */ uint8_t *ipp_label_v4; /* TX label for IPv4 */ uint_t ipp_label_len_v6; /* Len of TX label for IPv6 */ uint8_t *ipp_label_v6; /* TX label for IPv6 */ }; typedef struct ip_pkt_s ip_pkt_t; extern void ip_pkt_free(ip_pkt_t *); /* free storage inside ip_pkt_t */ extern ipaddr_t ip_pkt_source_route_v4(const ip_pkt_t *); extern in6_addr_t *ip_pkt_source_route_v6(const ip_pkt_t *); extern int ip_pkt_copy(ip_pkt_t *, ip_pkt_t *, int); extern void ip_pkt_source_route_reverse_v4(ip_pkt_t *); /* ipp_fields values */ #define IPPF_ADDR 0x0001 /* Part of in6_pktinfo: src/dst addr */ #define IPPF_HOPLIMIT 0x0002 /* Overrides unicast and multicast */ #define IPPF_TCLASS 0x0004 /* Overrides class in sin6_flowinfo */ #define IPPF_HOPOPTS 0x0010 /* ipp_hopopts set */ #define IPPF_RTHDR 0x0020 /* ipp_rthdr set */ #define IPPF_RTHDRDSTOPTS 0x0040 /* ipp_rthdrdstopts set */ #define IPPF_DSTOPTS 0x0080 /* ipp_dstopts set */ #define IPPF_IPV4_OPTIONS 0x0100 /* ipp_ipv4_options set */ #define IPPF_LABEL_V4 0x0200 /* ipp_label_v4 set */ #define IPPF_LABEL_V6 0x0400 /* ipp_label_v6 set */ #define IPPF_FRAGHDR 0x0800 /* Used for IPsec receive side */ /* * Data structure which is passed to conn_opt_get/set. * The conn_t is included even though it can be inferred from queue_t. * setsockopt and getsockopt use conn_ixa and conn_xmit_ipp. However, * when handling ancillary data we use separate ixa and ipps. */ typedef struct conn_opt_arg_s { conn_t *coa_connp; ip_xmit_attr_t *coa_ixa; ip_pkt_t *coa_ipp; boolean_t coa_ancillary; /* Ancillary data and not setsockopt */ uint_t coa_changed; /* See below */ } conn_opt_arg_t; /* * Flags for what changed. * If we want to be more efficient in the future we can have more fine * grained flags e.g., a flag for just IP_TOS changing. * For now we either call ip_set_destination (for "route changed") * and/or conn_build_hdr_template/conn_prepend_hdr (for "header changed"). */ #define COA_HEADER_CHANGED 0x0001 #define COA_ROUTE_CHANGED 0x0002 #define COA_RCVBUF_CHANGED 0x0004 /* SO_RCVBUF */ #define COA_SNDBUF_CHANGED 0x0008 /* SO_SNDBUF */ #define COA_WROFF_CHANGED 0x0010 /* Header size changed */ #define COA_ICMP_BIND_NEEDED 0x0020 #define COA_OOBINLINE_CHANGED 0x0040 #define TCP_PORTS_OFFSET 0 #define UDP_PORTS_OFFSET 0 /* * lookups return the ill/ipif only if the flags are clear OR Iam writer. * ill / ipif lookup functions increment the refcnt on the ill / ipif only * after calling these macros. This ensures that the refcnt on the ipif or * ill will eventually drop down to zero. */ #define ILL_LOOKUP_FAILED 1 /* Used as error code */ #define IPIF_LOOKUP_FAILED 2 /* Used as error code */ #define ILL_CAN_LOOKUP(ill) \ (!((ill)->ill_state_flags & ILL_CONDEMNED) || \ IAM_WRITER_ILL(ill)) #define ILL_IS_CONDEMNED(ill) \ ((ill)->ill_state_flags & ILL_CONDEMNED) #define IPIF_CAN_LOOKUP(ipif) \ (!((ipif)->ipif_state_flags & IPIF_CONDEMNED) || \ IAM_WRITER_IPIF(ipif)) #define IPIF_IS_CONDEMNED(ipif) \ ((ipif)->ipif_state_flags & IPIF_CONDEMNED) #define IPIF_IS_CHANGING(ipif) \ ((ipif)->ipif_state_flags & IPIF_CHANGING) /* Macros used to assert that this thread is a writer */ #define IAM_WRITER_IPSQ(ipsq) ((ipsq)->ipsq_xop->ipx_writer == curthread) #define IAM_WRITER_ILL(ill) IAM_WRITER_IPSQ((ill)->ill_phyint->phyint_ipsq) #define IAM_WRITER_IPIF(ipif) IAM_WRITER_ILL((ipif)->ipif_ill) /* * Grab ill locks in the proper order. The order is highest addressed * ill is locked first. */ #define GRAB_ILL_LOCKS(ill_1, ill_2) \ { \ if ((ill_1) > (ill_2)) { \ if (ill_1 != NULL) \ mutex_enter(&(ill_1)->ill_lock); \ if (ill_2 != NULL) \ mutex_enter(&(ill_2)->ill_lock); \ } else { \ if (ill_2 != NULL) \ mutex_enter(&(ill_2)->ill_lock); \ if (ill_1 != NULL && ill_1 != ill_2) \ mutex_enter(&(ill_1)->ill_lock); \ } \ } #define RELEASE_ILL_LOCKS(ill_1, ill_2) \ { \ if (ill_1 != NULL) \ mutex_exit(&(ill_1)->ill_lock); \ if (ill_2 != NULL && ill_2 != ill_1) \ mutex_exit(&(ill_2)->ill_lock); \ } /* Get the other protocol instance ill */ #define ILL_OTHER(ill) \ ((ill)->ill_isv6 ? (ill)->ill_phyint->phyint_illv4 : \ (ill)->ill_phyint->phyint_illv6) /* ioctl command info: Ioctl properties extracted and stored in here */ typedef struct cmd_info_s { ipif_t *ci_ipif; /* ipif associated with [l]ifreq ioctl's */ sin_t *ci_sin; /* the sin struct passed down */ sin6_t *ci_sin6; /* the sin6_t struct passed down */ struct lifreq *ci_lifr; /* the lifreq struct passed down */ } cmd_info_t; extern struct kmem_cache *ire_cache; extern ipaddr_t ip_g_all_ones; extern uint_t ip_loopback_mtu; /* /etc/system */ extern uint_t ip_loopback_mtuplus; extern uint_t ip_loopback_mtu_v6plus; extern vmem_t *ip_minor_arena_sa; extern vmem_t *ip_minor_arena_la; /* * ip_g_forward controls IP forwarding. It takes two values: * 0: IP_FORWARD_NEVER Don't forward packets ever. * 1: IP_FORWARD_ALWAYS Forward packets for elsewhere. * * RFC1122 says there must be a configuration switch to control forwarding, * but that the default MUST be to not forward packets ever. Implicit * control based on configuration of multiple interfaces MUST NOT be * implemented (Section 3.1). SunOS 4.1 did provide the "automatic" capability * and, in fact, it was the default. That capability is now provided in the * /etc/rc2.d/S69inet script. */ #define ips_ip_respond_to_address_mask_broadcast \ ips_propinfo_tbl[0].prop_cur_bval #define ips_ip_g_resp_to_echo_bcast ips_propinfo_tbl[1].prop_cur_bval #define ips_ip_g_resp_to_echo_mcast ips_propinfo_tbl[2].prop_cur_bval #define ips_ip_g_resp_to_timestamp ips_propinfo_tbl[3].prop_cur_bval #define ips_ip_g_resp_to_timestamp_bcast ips_propinfo_tbl[4].prop_cur_bval #define ips_ip_g_send_redirects ips_propinfo_tbl[5].prop_cur_bval #define ips_ip_g_forward_directed_bcast ips_propinfo_tbl[6].prop_cur_bval #define ips_ip_mrtdebug ips_propinfo_tbl[7].prop_cur_uval #define ips_ip_ire_reclaim_fraction ips_propinfo_tbl[8].prop_cur_uval #define ips_ip_nce_reclaim_fraction ips_propinfo_tbl[9].prop_cur_uval #define ips_ip_dce_reclaim_fraction ips_propinfo_tbl[10].prop_cur_uval #define ips_ip_def_ttl ips_propinfo_tbl[11].prop_cur_uval #define ips_ip_forward_src_routed ips_propinfo_tbl[12].prop_cur_bval #define ips_ip_wroff_extra ips_propinfo_tbl[13].prop_cur_uval #define ips_ip_pathmtu_interval ips_propinfo_tbl[14].prop_cur_uval #define ips_ip_icmp_return ips_propinfo_tbl[15].prop_cur_uval #define ips_ip_path_mtu_discovery ips_propinfo_tbl[16].prop_cur_bval #define ips_ip_pmtu_min ips_propinfo_tbl[17].prop_cur_uval #define ips_ip_ignore_redirect ips_propinfo_tbl[18].prop_cur_bval #define ips_ip_arp_icmp_error ips_propinfo_tbl[19].prop_cur_bval #define ips_ip_broadcast_ttl ips_propinfo_tbl[20].prop_cur_uval #define ips_ip_icmp_err_interval ips_propinfo_tbl[21].prop_cur_uval #define ips_ip_icmp_err_burst ips_propinfo_tbl[22].prop_cur_uval #define ips_ip_reass_queue_bytes ips_propinfo_tbl[23].prop_cur_uval #define ips_ip_strict_dst_multihoming ips_propinfo_tbl[24].prop_cur_uval #define ips_ip_addrs_per_if ips_propinfo_tbl[25].prop_cur_uval #define ips_ipsec_override_persocket_policy ips_propinfo_tbl[26].prop_cur_bval #define ips_icmp_accept_clear_messages ips_propinfo_tbl[27].prop_cur_bval #define ips_igmp_accept_clear_messages ips_propinfo_tbl[28].prop_cur_bval /* IPv6 configuration knobs */ #define ips_delay_first_probe_time ips_propinfo_tbl[29].prop_cur_uval #define ips_max_unicast_solicit ips_propinfo_tbl[30].prop_cur_uval #define ips_ipv6_def_hops ips_propinfo_tbl[31].prop_cur_uval #define ips_ipv6_icmp_return ips_propinfo_tbl[32].prop_cur_uval #define ips_ipv6_forward_src_routed ips_propinfo_tbl[33].prop_cur_bval #define ips_ipv6_resp_echo_mcast ips_propinfo_tbl[34].prop_cur_bval #define ips_ipv6_send_redirects ips_propinfo_tbl[35].prop_cur_bval #define ips_ipv6_ignore_redirect ips_propinfo_tbl[36].prop_cur_bval #define ips_ipv6_strict_dst_multihoming ips_propinfo_tbl[37].prop_cur_uval #define ips_src_check ips_propinfo_tbl[38].prop_cur_uval #define ips_ipsec_policy_log_interval ips_propinfo_tbl[39].prop_cur_uval #define ips_pim_accept_clear_messages ips_propinfo_tbl[40].prop_cur_bval #define ips_ip_ndp_unsolicit_interval ips_propinfo_tbl[41].prop_cur_uval #define ips_ip_ndp_unsolicit_count ips_propinfo_tbl[42].prop_cur_uval #define ips_ipv6_ignore_home_address_opt ips_propinfo_tbl[43].prop_cur_bval /* Misc IP configuration knobs */ #define ips_ip_policy_mask ips_propinfo_tbl[44].prop_cur_uval #define ips_ip_ecmp_behavior ips_propinfo_tbl[45].prop_cur_uval #define ips_ip_multirt_ttl ips_propinfo_tbl[46].prop_cur_uval #define ips_ip_ire_badcnt_lifetime ips_propinfo_tbl[47].prop_cur_uval #define ips_ip_max_temp_idle ips_propinfo_tbl[48].prop_cur_uval #define ips_ip_max_temp_defend ips_propinfo_tbl[49].prop_cur_uval #define ips_ip_max_defend ips_propinfo_tbl[50].prop_cur_uval #define ips_ip_defend_interval ips_propinfo_tbl[51].prop_cur_uval #define ips_ip_dup_recovery ips_propinfo_tbl[52].prop_cur_uval #define ips_ip_restrict_interzone_loopback ips_propinfo_tbl[53].prop_cur_bval #define ips_ip_lso_outbound ips_propinfo_tbl[54].prop_cur_bval #define ips_igmp_max_version ips_propinfo_tbl[55].prop_cur_uval #define ips_mld_max_version ips_propinfo_tbl[56].prop_cur_uval #define ips_ip_forwarding ips_propinfo_tbl[57].prop_cur_bval #define ips_ipv6_forwarding ips_propinfo_tbl[58].prop_cur_bval #define ips_ip_reassembly_timeout ips_propinfo_tbl[59].prop_cur_uval #define ips_ipv6_reassembly_timeout ips_propinfo_tbl[60].prop_cur_uval #define ips_ip_cgtp_filter ips_propinfo_tbl[61].prop_cur_bval #define ips_arp_probe_delay ips_propinfo_tbl[62].prop_cur_uval #define ips_arp_fastprobe_delay ips_propinfo_tbl[63].prop_cur_uval #define ips_arp_probe_interval ips_propinfo_tbl[64].prop_cur_uval #define ips_arp_fastprobe_interval ips_propinfo_tbl[65].prop_cur_uval #define ips_arp_probe_count ips_propinfo_tbl[66].prop_cur_uval #define ips_arp_fastprobe_count ips_propinfo_tbl[67].prop_cur_uval #define ips_ipv4_dad_announce_interval ips_propinfo_tbl[68].prop_cur_uval #define ips_ipv6_dad_announce_interval ips_propinfo_tbl[69].prop_cur_uval #define ips_arp_defend_interval ips_propinfo_tbl[70].prop_cur_uval #define ips_arp_defend_rate ips_propinfo_tbl[71].prop_cur_uval #define ips_ndp_defend_interval ips_propinfo_tbl[72].prop_cur_uval #define ips_ndp_defend_rate ips_propinfo_tbl[73].prop_cur_uval #define ips_arp_defend_period ips_propinfo_tbl[74].prop_cur_uval #define ips_ndp_defend_period ips_propinfo_tbl[75].prop_cur_uval #define ips_ipv4_icmp_return_pmtu ips_propinfo_tbl[76].prop_cur_bval #define ips_ipv6_icmp_return_pmtu ips_propinfo_tbl[77].prop_cur_bval #define ips_ip_arp_publish_count ips_propinfo_tbl[78].prop_cur_uval #define ips_ip_arp_publish_interval ips_propinfo_tbl[79].prop_cur_uval #define ips_ip_strict_src_multihoming ips_propinfo_tbl[80].prop_cur_uval #define ips_ipv6_strict_src_multihoming ips_propinfo_tbl[81].prop_cur_uval #define ips_ipv6_drop_inbound_icmpv6 ips_propinfo_tbl[82].prop_cur_bval extern int dohwcksum; /* use h/w cksum if supported by the h/w */ #ifdef ZC_TEST extern int noswcksum; #endif extern char ipif_loopback_name[]; extern nv_t *ire_nv_tbl; extern struct module_info ip_mod_info; #define HOOKS4_INTERESTED_PHYSICAL_IN(ipst) \ ((ipst)->ips_ip4_physical_in_event.he_interested) #define HOOKS6_INTERESTED_PHYSICAL_IN(ipst) \ ((ipst)->ips_ip6_physical_in_event.he_interested) #define HOOKS4_INTERESTED_PHYSICAL_OUT(ipst) \ ((ipst)->ips_ip4_physical_out_event.he_interested) #define HOOKS6_INTERESTED_PHYSICAL_OUT(ipst) \ ((ipst)->ips_ip6_physical_out_event.he_interested) #define HOOKS4_INTERESTED_FORWARDING(ipst) \ ((ipst)->ips_ip4_forwarding_event.he_interested) #define HOOKS6_INTERESTED_FORWARDING(ipst) \ ((ipst)->ips_ip6_forwarding_event.he_interested) #define HOOKS4_INTERESTED_LOOPBACK_IN(ipst) \ ((ipst)->ips_ip4_loopback_in_event.he_interested) #define HOOKS6_INTERESTED_LOOPBACK_IN(ipst) \ ((ipst)->ips_ip6_loopback_in_event.he_interested) #define HOOKS4_INTERESTED_LOOPBACK_OUT(ipst) \ ((ipst)->ips_ip4_loopback_out_event.he_interested) #define HOOKS6_INTERESTED_LOOPBACK_OUT(ipst) \ ((ipst)->ips_ip6_loopback_out_event.he_interested) /* * Hooks marcos used inside of ip * The callers use the above INTERESTED macros first, hence * the he_interested check is superflous. */ #define FW_HOOKS(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \ if ((_hook).he_interested) { \ hook_pkt_event_t info; \ \ _NOTE(CONSTCOND) \ ASSERT((_ilp != NULL) || (_olp != NULL)); \ \ FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \ FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \ info.hpe_protocol = ipst->ips_ipv4_net_data; \ info.hpe_hdr = _iph; \ info.hpe_mp = &(_fm); \ info.hpe_mb = _m; \ info.hpe_flags = _llm; \ _err = hook_run(ipst->ips_ipv4_net_data->netd_hooks, \ _event, (hook_data_t)&info); \ if (_err != 0) { \ ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\ (_hook).he_name, (void *)_fm, (void *)_m)); \ if (_fm != NULL) { \ freemsg(_fm); \ _fm = NULL; \ } \ _iph = NULL; \ _m = NULL; \ } else { \ _iph = info.hpe_hdr; \ _m = info.hpe_mb; \ } \ } #define FW_HOOKS6(_hook, _event, _ilp, _olp, _iph, _fm, _m, _llm, ipst, _err) \ if ((_hook).he_interested) { \ hook_pkt_event_t info; \ \ _NOTE(CONSTCOND) \ ASSERT((_ilp != NULL) || (_olp != NULL)); \ \ FW_SET_ILL_INDEX(info.hpe_ifp, (ill_t *)_ilp); \ FW_SET_ILL_INDEX(info.hpe_ofp, (ill_t *)_olp); \ info.hpe_protocol = ipst->ips_ipv6_net_data; \ info.hpe_hdr = _iph; \ info.hpe_mp = &(_fm); \ info.hpe_mb = _m; \ info.hpe_flags = _llm; \ _err = hook_run(ipst->ips_ipv6_net_data->netd_hooks, \ _event, (hook_data_t)&info); \ if (_err != 0) { \ ip2dbg(("%s hook dropped mblk chain %p hdr %p\n",\ (_hook).he_name, (void *)_fm, (void *)_m)); \ if (_fm != NULL) { \ freemsg(_fm); \ _fm = NULL; \ } \ _iph = NULL; \ _m = NULL; \ } else { \ _iph = info.hpe_hdr; \ _m = info.hpe_mb; \ } \ } #define FW_SET_ILL_INDEX(fp, ill) \ _NOTE(CONSTCOND) \ if ((ill) == NULL || (ill)->ill_phyint == NULL) { \ (fp) = 0; \ _NOTE(CONSTCOND) \ } else if (IS_UNDER_IPMP(ill)) { \ (fp) = ipmp_ill_get_ipmp_ifindex(ill); \ } else { \ (fp) = (ill)->ill_phyint->phyint_ifindex; \ } /* * Network byte order macros */ #ifdef _BIG_ENDIAN #define N_IN_CLASSA_NET IN_CLASSA_NET #define N_IN_CLASSD_NET IN_CLASSD_NET #define N_INADDR_UNSPEC_GROUP INADDR_UNSPEC_GROUP #define N_IN_LOOPBACK_NET (ipaddr_t)0x7f000000U #else /* _BIG_ENDIAN */ #define N_IN_CLASSA_NET (ipaddr_t)0x000000ffU #define N_IN_CLASSD_NET (ipaddr_t)0x000000f0U #define N_INADDR_UNSPEC_GROUP (ipaddr_t)0x000000e0U #define N_IN_LOOPBACK_NET (ipaddr_t)0x0000007fU #endif /* _BIG_ENDIAN */ #define CLASSD(addr) (((addr) & N_IN_CLASSD_NET) == N_INADDR_UNSPEC_GROUP) #define CLASSE(addr) (((addr) & N_IN_CLASSD_NET) == N_IN_CLASSD_NET) #define IP_LOOPBACK_ADDR(addr) \ (((addr) & N_IN_CLASSA_NET == N_IN_LOOPBACK_NET)) extern int ip_debug; extern uint_t ip_thread_data; extern krwlock_t ip_thread_rwlock; extern list_t ip_thread_list; #ifdef IP_DEBUG #include #include #define ip0dbg(a) printf a #define ip1dbg(a) if (ip_debug > 2) printf a #define ip2dbg(a) if (ip_debug > 3) printf a #define ip3dbg(a) if (ip_debug > 4) printf a #else #define ip0dbg(a) /* */ #define ip1dbg(a) /* */ #define ip2dbg(a) /* */ #define ip3dbg(a) /* */ #endif /* IP_DEBUG */ /* Default MAC-layer address string length for mac_colon_addr */ #define MAC_STR_LEN 128 struct mac_header_info_s; extern void ill_frag_timer(void *); extern ill_t *ill_first(int, int, ill_walk_context_t *, ip_stack_t *); extern ill_t *ill_next(ill_walk_context_t *, ill_t *); extern void ill_frag_timer_start(ill_t *); extern void ill_nic_event_dispatch(ill_t *, lif_if_t, nic_event_t, nic_event_data_t, size_t); extern mblk_t *ip_carve_mp(mblk_t **, ssize_t); extern mblk_t *ip_dlpi_alloc(size_t, t_uscalar_t); extern mblk_t *ip_dlnotify_alloc(uint_t, uint_t); extern char *ip_dot_addr(ipaddr_t, char *); extern const char *mac_colon_addr(const uint8_t *, size_t, char *, size_t); extern void ip_lwput(queue_t *, mblk_t *); extern boolean_t icmp_err_rate_limit(ip_stack_t *); extern void icmp_frag_needed(mblk_t *, int, ip_recv_attr_t *); extern mblk_t *icmp_inbound_v4(mblk_t *, ip_recv_attr_t *); extern void icmp_time_exceeded(mblk_t *, uint8_t, ip_recv_attr_t *); extern void icmp_unreachable(mblk_t *, uint8_t, ip_recv_attr_t *); extern boolean_t ip_ipsec_policy_inherit(conn_t *, conn_t *, ip_recv_attr_t *); extern void *ip_pullup(mblk_t *, ssize_t, ip_recv_attr_t *); extern void ip_setl2src(mblk_t *, ip_recv_attr_t *, ill_t *); extern mblk_t *ip_check_and_align_header(mblk_t *, uint_t, ip_recv_attr_t *); extern mblk_t *ip_check_length(mblk_t *, uchar_t *, ssize_t, uint_t, uint_t, ip_recv_attr_t *); extern mblk_t *ip_check_optlen(mblk_t *, ipha_t *, uint_t, uint_t, ip_recv_attr_t *); extern mblk_t *ip_fix_dbref(mblk_t *, ip_recv_attr_t *); extern uint_t ip_cksum(mblk_t *, int, uint32_t); extern int ip_close(queue_t *, int); extern uint16_t ip_csum_hdr(ipha_t *); extern void ip_forward_xmit_v4(nce_t *, ill_t *, mblk_t *, ipha_t *, ip_recv_attr_t *, uint32_t, uint32_t); extern boolean_t ip_forward_options(mblk_t *, ipha_t *, ill_t *, ip_recv_attr_t *); extern int ip_fragment_v4(mblk_t *, nce_t *, iaflags_t, uint_t, uint32_t, uint32_t, zoneid_t, zoneid_t, pfirepostfrag_t postfragfn, uintptr_t *cookie); extern void ip_proto_not_sup(mblk_t *, ip_recv_attr_t *); extern void ip_ire_g_fini(void); extern void ip_ire_g_init(void); extern void ip_ire_fini(ip_stack_t *); extern void ip_ire_init(ip_stack_t *); extern void ip_mdata_to_mhi(ill_t *, mblk_t *, struct mac_header_info_s *); extern int ip_openv4(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp); extern int ip_openv6(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp); extern int ip_reassemble(mblk_t *, ipf_t *, uint_t, boolean_t, ill_t *, size_t); extern void ip_rput(queue_t *, mblk_t *); extern void ip_input(ill_t *, ill_rx_ring_t *, mblk_t *, struct mac_header_info_s *); extern void ip_input_v6(ill_t *, ill_rx_ring_t *, mblk_t *, struct mac_header_info_s *); extern mblk_t *ip_input_common_v4(ill_t *, ill_rx_ring_t *, mblk_t *, struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *); extern mblk_t *ip_input_common_v6(ill_t *, ill_rx_ring_t *, mblk_t *, struct mac_header_info_s *, squeue_t *, mblk_t **, uint_t *); extern void ill_input_full_v4(mblk_t *, void *, void *, ip_recv_attr_t *, rtc_t *); extern void ill_input_short_v4(mblk_t *, void *, void *, ip_recv_attr_t *, rtc_t *); extern void ill_input_full_v6(mblk_t *, void *, void *, ip_recv_attr_t *, rtc_t *); extern void ill_input_short_v6(mblk_t *, void *, void *, ip_recv_attr_t *, rtc_t *); extern ipaddr_t ip_input_options(ipha_t *, ipaddr_t, mblk_t *, ip_recv_attr_t *, int *); extern boolean_t ip_input_local_options(mblk_t *, ipha_t *, ip_recv_attr_t *); extern mblk_t *ip_input_fragment(mblk_t *, ipha_t *, ip_recv_attr_t *); extern mblk_t *ip_input_fragment_v6(mblk_t *, ip6_t *, ip6_frag_t *, uint_t, ip_recv_attr_t *); extern void ip_input_post_ipsec(mblk_t *, ip_recv_attr_t *); extern void ip_fanout_v4(mblk_t *, ipha_t *, ip_recv_attr_t *); extern void ip_fanout_v6(mblk_t *, ip6_t *, ip_recv_attr_t *); extern void ip_fanout_proto_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *, ip_recv_attr_t *); extern void ip_fanout_proto_v4(mblk_t *, ipha_t *, ip_recv_attr_t *); extern void ip_fanout_send_icmp_v4(mblk_t *, uint_t, uint_t, ip_recv_attr_t *); extern void ip_fanout_udp_conn(conn_t *, mblk_t *, ipha_t *, ip6_t *, ip_recv_attr_t *); extern void ip_fanout_udp_multi_v4(mblk_t *, ipha_t *, uint16_t, uint16_t, ip_recv_attr_t *); extern mblk_t *zero_spi_check(mblk_t *, ip_recv_attr_t *); extern void ip_build_hdrs_v4(uchar_t *, uint_t, const ip_pkt_t *, uint8_t); extern int ip_find_hdr_v4(ipha_t *, ip_pkt_t *, boolean_t); extern int ip_total_hdrs_len_v4(const ip_pkt_t *); extern mblk_t *ip_accept_tcp(ill_t *, ill_rx_ring_t *, squeue_t *, mblk_t *, mblk_t **, uint_t *cnt); extern void ip_rput_dlpi(ill_t *, mblk_t *); extern void ip_rput_notdata(ill_t *, mblk_t *); extern void ip_mib2_add_ip_stats(mib2_ipIfStatsEntry_t *, mib2_ipIfStatsEntry_t *); extern void ip_mib2_add_icmp6_stats(mib2_ipv6IfIcmpEntry_t *, mib2_ipv6IfIcmpEntry_t *); extern void ip_rput_other(ipsq_t *, queue_t *, mblk_t *, void *); extern ire_t *ip_check_multihome(void *, ire_t *, ill_t *); extern void ip_send_potential_redirect_v4(mblk_t *, ipha_t *, ire_t *, ip_recv_attr_t *); extern int ip_set_destination_v4(ipaddr_t *, ipaddr_t, ipaddr_t, ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t); extern int ip_set_destination_v6(in6_addr_t *, const in6_addr_t *, const in6_addr_t *, ip_xmit_attr_t *, iulp_t *, uint32_t, uint_t); extern int ip_output_simple(mblk_t *, ip_xmit_attr_t *); extern int ip_output_simple_v4(mblk_t *, ip_xmit_attr_t *); extern int ip_output_simple_v6(mblk_t *, ip_xmit_attr_t *); extern int ip_output_options(mblk_t *, ipha_t *, ip_xmit_attr_t *, ill_t *); extern void ip_output_local_options(ipha_t *, ip_stack_t *); extern ip_xmit_attr_t *conn_get_ixa(conn_t *, boolean_t); extern ip_xmit_attr_t *conn_get_ixa_tryhard(conn_t *, boolean_t); extern ip_xmit_attr_t *conn_replace_ixa(conn_t *, ip_xmit_attr_t *); extern ip_xmit_attr_t *conn_get_ixa_exclusive(conn_t *); extern ip_xmit_attr_t *ip_xmit_attr_duplicate(ip_xmit_attr_t *); extern void ip_xmit_attr_replace_tsl(ip_xmit_attr_t *, ts_label_t *); extern void ip_xmit_attr_restore_tsl(ip_xmit_attr_t *, cred_t *); boolean_t ip_recv_attr_replace_label(ip_recv_attr_t *, ts_label_t *); extern void ixa_inactive(ip_xmit_attr_t *); extern void ixa_refrele(ip_xmit_attr_t *); extern boolean_t ixa_check_drain_insert(conn_t *, ip_xmit_attr_t *); extern void ixa_cleanup(ip_xmit_attr_t *); extern void ira_cleanup(ip_recv_attr_t *, boolean_t); extern void ixa_safe_copy(ip_xmit_attr_t *, ip_xmit_attr_t *); extern int conn_ip_output(mblk_t *, ip_xmit_attr_t *); extern boolean_t ip_output_verify_local(ip_xmit_attr_t *); extern mblk_t *ip_output_process_local(mblk_t *, ip_xmit_attr_t *, boolean_t, boolean_t, conn_t *); extern int conn_opt_get(conn_opt_arg_t *, t_scalar_t, t_scalar_t, uchar_t *); extern int conn_opt_set(conn_opt_arg_t *, t_scalar_t, t_scalar_t, uint_t, uchar_t *, boolean_t, cred_t *); extern boolean_t conn_same_as_last_v4(conn_t *, sin_t *); extern boolean_t conn_same_as_last_v6(conn_t *, sin6_t *); extern int conn_update_label(const conn_t *, const ip_xmit_attr_t *, const in6_addr_t *, ip_pkt_t *); extern int ip_opt_set_multicast_group(conn_t *, t_scalar_t, uchar_t *, boolean_t, boolean_t); extern int ip_opt_set_multicast_sources(conn_t *, t_scalar_t, uchar_t *, boolean_t, boolean_t); extern int conn_getsockname(conn_t *, struct sockaddr *, uint_t *); extern int conn_getpeername(conn_t *, struct sockaddr *, uint_t *); extern int conn_build_hdr_template(conn_t *, uint_t, uint_t, const in6_addr_t *, const in6_addr_t *, uint32_t); extern mblk_t *conn_prepend_hdr(ip_xmit_attr_t *, const ip_pkt_t *, const in6_addr_t *, const in6_addr_t *, uint8_t, uint32_t, uint_t, mblk_t *, uint_t, uint_t, uint32_t *, int *); extern void ip_attr_newdst(ip_xmit_attr_t *); extern void ip_attr_nexthop(const ip_pkt_t *, const ip_xmit_attr_t *, const in6_addr_t *, in6_addr_t *); extern int conn_connect(conn_t *, iulp_t *, uint32_t); extern int ip_attr_connect(const conn_t *, ip_xmit_attr_t *, const in6_addr_t *, const in6_addr_t *, const in6_addr_t *, in_port_t, in6_addr_t *, iulp_t *, uint32_t); extern int conn_inherit_parent(conn_t *, conn_t *); extern void conn_ixa_cleanup(conn_t *connp, void *arg); extern boolean_t conn_wantpacket(conn_t *, ip_recv_attr_t *, ipha_t *); extern uint_t ip_type_v4(ipaddr_t, ip_stack_t *); extern uint_t ip_type_v6(const in6_addr_t *, ip_stack_t *); extern void ip_wput_nondata(queue_t *, mblk_t *); extern void ip_wsrv(queue_t *); extern char *ip_nv_lookup(nv_t *, int); extern boolean_t ip_local_addr_ok_v6(const in6_addr_t *, const in6_addr_t *); extern boolean_t ip_remote_addr_ok_v6(const in6_addr_t *, const in6_addr_t *); extern ipaddr_t ip_massage_options(ipha_t *, netstack_t *); extern ipaddr_t ip_net_mask(ipaddr_t); extern void arp_bringup_done(ill_t *, int); extern void arp_replumb_done(ill_t *, int); extern struct qinit iprinitv6; extern void ipmp_init(ip_stack_t *); extern void ipmp_destroy(ip_stack_t *); extern ipmp_grp_t *ipmp_grp_create(const char *, phyint_t *); extern void ipmp_grp_destroy(ipmp_grp_t *); extern void ipmp_grp_info(const ipmp_grp_t *, lifgroupinfo_t *); extern int ipmp_grp_rename(ipmp_grp_t *, const char *); extern ipmp_grp_t *ipmp_grp_lookup(const char *, ip_stack_t *); extern int ipmp_grp_vet_phyint(ipmp_grp_t *, phyint_t *); extern ipmp_illgrp_t *ipmp_illgrp_create(ill_t *); extern void ipmp_illgrp_destroy(ipmp_illgrp_t *); extern ill_t *ipmp_illgrp_add_ipif(ipmp_illgrp_t *, ipif_t *); extern void ipmp_illgrp_del_ipif(ipmp_illgrp_t *, ipif_t *); extern ill_t *ipmp_illgrp_next_ill(ipmp_illgrp_t *); extern ill_t *ipmp_illgrp_hold_next_ill(ipmp_illgrp_t *); extern ill_t *ipmp_illgrp_hold_cast_ill(ipmp_illgrp_t *); extern ill_t *ipmp_illgrp_ipmp_ill(ipmp_illgrp_t *); extern void ipmp_illgrp_refresh_mtu(ipmp_illgrp_t *); extern ipmp_arpent_t *ipmp_illgrp_create_arpent(ipmp_illgrp_t *, boolean_t, ipaddr_t, uchar_t *, size_t, uint16_t); extern void ipmp_illgrp_destroy_arpent(ipmp_illgrp_t *, ipmp_arpent_t *); extern ipmp_arpent_t *ipmp_illgrp_lookup_arpent(ipmp_illgrp_t *, ipaddr_t *); extern void ipmp_illgrp_refresh_arpent(ipmp_illgrp_t *); extern void ipmp_illgrp_mark_arpent(ipmp_illgrp_t *, ipmp_arpent_t *); extern ill_t *ipmp_illgrp_find_ill(ipmp_illgrp_t *, uchar_t *, uint_t); extern void ipmp_illgrp_link_grp(ipmp_illgrp_t *, ipmp_grp_t *); extern int ipmp_illgrp_unlink_grp(ipmp_illgrp_t *); extern uint_t ipmp_ill_get_ipmp_ifindex(const ill_t *); extern void ipmp_ill_join_illgrp(ill_t *, ipmp_illgrp_t *); extern void ipmp_ill_leave_illgrp(ill_t *); extern ill_t *ipmp_ill_hold_ipmp_ill(ill_t *); extern ill_t *ipmp_ill_hold_xmit_ill(ill_t *, boolean_t); extern boolean_t ipmp_ill_is_active(ill_t *); extern void ipmp_ill_refresh_active(ill_t *); extern void ipmp_phyint_join_grp(phyint_t *, ipmp_grp_t *); extern void ipmp_phyint_leave_grp(phyint_t *); extern void ipmp_phyint_refresh_active(phyint_t *); extern ill_t *ipmp_ipif_bound_ill(const ipif_t *); extern ill_t *ipmp_ipif_hold_bound_ill(const ipif_t *); extern boolean_t ipmp_ipif_is_dataaddr(const ipif_t *); extern boolean_t ipmp_ipif_is_stubaddr(const ipif_t *); extern boolean_t ipmp_packet_is_probe(mblk_t *, ill_t *); extern void ipmp_ncec_delete_nce(ncec_t *); extern void ipmp_ncec_refresh_nce(ncec_t *); extern void conn_drain_insert(conn_t *, idl_tx_list_t *); extern void conn_setqfull(conn_t *, boolean_t *); extern void conn_clrqfull(conn_t *, boolean_t *); extern int conn_ipsec_length(conn_t *); extern ipaddr_t ip_get_dst(ipha_t *); extern uint_t ip_get_pmtu(ip_xmit_attr_t *); extern uint_t ip_get_base_mtu(ill_t *, ire_t *); extern mblk_t *ip_output_attach_policy(mblk_t *, ipha_t *, ip6_t *, const conn_t *, ip_xmit_attr_t *); extern int ipsec_out_extra_length(ip_xmit_attr_t *); extern int ipsec_out_process(mblk_t *, ip_xmit_attr_t *); extern int ip_output_post_ipsec(mblk_t *, ip_xmit_attr_t *); extern void ipsec_out_to_in(ip_xmit_attr_t *, ill_t *ill, ip_recv_attr_t *); extern void ire_cleanup(ire_t *); extern void ire_inactive(ire_t *); extern boolean_t irb_inactive(irb_t *); extern ire_t *ire_unlink(irb_t *); #ifdef DEBUG extern boolean_t th_trace_ref(const void *, ip_stack_t *); extern void th_trace_unref(const void *); extern void th_trace_cleanup(const void *, boolean_t); extern void ire_trace_ref(ire_t *); extern void ire_untrace_ref(ire_t *); #endif extern int ip_srcid_insert(const in6_addr_t *, zoneid_t, ip_stack_t *); extern int ip_srcid_remove(const in6_addr_t *, zoneid_t, ip_stack_t *); extern void ip_srcid_find_id(uint_t, in6_addr_t *, zoneid_t, netstack_t *); extern uint_t ip_srcid_find_addr(const in6_addr_t *, zoneid_t, netstack_t *); extern uint8_t ipoptp_next(ipoptp_t *); extern uint8_t ipoptp_first(ipoptp_t *, ipha_t *); extern int ip_opt_get_user(conn_t *, uchar_t *); extern int ipsec_req_from_conn(conn_t *, ipsec_req_t *, int); extern int ip_snmp_get(queue_t *q, mblk_t *mctl, int level); extern int ip_snmp_set(queue_t *q, int, int, uchar_t *, int); extern void ip_process_ioctl(ipsq_t *, queue_t *, mblk_t *, void *); extern void ip_quiesce_conn(conn_t *); extern void ip_reprocess_ioctl(ipsq_t *, queue_t *, mblk_t *, void *); extern void ip_ioctl_finish(queue_t *, mblk_t *, int, int, ipsq_t *); extern boolean_t ip_cmpbuf(const void *, uint_t, boolean_t, const void *, uint_t); extern boolean_t ip_allocbuf(void **, uint_t *, boolean_t, const void *, uint_t); extern void ip_savebuf(void **, uint_t *, boolean_t, const void *, uint_t); extern boolean_t ipsq_pending_mp_cleanup(ill_t *, conn_t *); extern void conn_ioctl_cleanup(conn_t *); extern void ip_unbind(conn_t *); extern void tnet_init(void); extern void tnet_fini(void); /* * Hook functions to enable cluster networking * On non-clustered systems these vectors must always be NULL. */ extern int (*cl_inet_isclusterwide)(netstackid_t stack_id, uint8_t protocol, sa_family_t addr_family, uint8_t *laddrp, void *args); extern uint32_t (*cl_inet_ipident)(netstackid_t stack_id, uint8_t protocol, sa_family_t addr_family, uint8_t *laddrp, uint8_t *faddrp, void *args); extern int (*cl_inet_connect2)(netstackid_t stack_id, uint8_t protocol, boolean_t is_outgoing, sa_family_t addr_family, uint8_t *laddrp, in_port_t lport, uint8_t *faddrp, in_port_t fport, void *args); extern void (*cl_inet_getspi)(netstackid_t, uint8_t, uint8_t *, size_t, void *); extern void (*cl_inet_getspi)(netstackid_t stack_id, uint8_t protocol, uint8_t *ptr, size_t len, void *args); extern int (*cl_inet_checkspi)(netstackid_t stack_id, uint8_t protocol, uint32_t spi, void *args); extern void (*cl_inet_deletespi)(netstackid_t stack_id, uint8_t protocol, uint32_t spi, void *args); extern void (*cl_inet_idlesa)(netstackid_t, uint8_t, uint32_t, sa_family_t, in6_addr_t, in6_addr_t, void *); /* Hooks for CGTP (multirt routes) filtering module */ #define CGTP_FILTER_REV_1 1 #define CGTP_FILTER_REV_2 2 #define CGTP_FILTER_REV_3 3 #define CGTP_FILTER_REV CGTP_FILTER_REV_3 /* cfo_filter and cfo_filter_v6 hooks return values */ #define CGTP_IP_PKT_NOT_CGTP 0 #define CGTP_IP_PKT_PREMIUM 1 #define CGTP_IP_PKT_DUPLICATE 2 /* Version 3 of the filter interface */ typedef struct cgtp_filter_ops { int cfo_filter_rev; /* CGTP_FILTER_REV_3 */ int (*cfo_change_state)(netstackid_t, int); int (*cfo_add_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t, ipaddr_t, ipaddr_t); int (*cfo_del_dest_v4)(netstackid_t, ipaddr_t, ipaddr_t); int (*cfo_add_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *, in6_addr_t *, in6_addr_t *); int (*cfo_del_dest_v6)(netstackid_t, in6_addr_t *, in6_addr_t *); int (*cfo_filter)(netstackid_t, uint_t, mblk_t *); int (*cfo_filter_v6)(netstackid_t, uint_t, ip6_t *, ip6_frag_t *); } cgtp_filter_ops_t; #define CGTP_MCAST_SUCCESS 1 /* * The separate CGTP module needs this global symbol so that it * can check the version and determine whether to use the old or the new * version of the filtering interface. */ extern int ip_cgtp_filter_rev; extern int ip_cgtp_filter_supported(void); extern int ip_cgtp_filter_register(netstackid_t, cgtp_filter_ops_t *); extern int ip_cgtp_filter_unregister(netstackid_t); extern int ip_cgtp_filter_is_registered(netstackid_t); /* * rr_ring_state cycles in the order shown below from RR_FREE through * RR_FREE_IN_PROG and back to RR_FREE. */ typedef enum { RR_FREE, /* Free slot */ RR_SQUEUE_UNBOUND, /* Ring's squeue is unbound */ RR_SQUEUE_BIND_INPROG, /* Ring's squeue bind in progress */ RR_SQUEUE_BOUND, /* Ring's squeue bound to cpu */ RR_FREE_INPROG /* Ring is being freed */ } ip_ring_state_t; #define ILL_MAX_RINGS 256 /* Max num of rx rings we can manage */ #define ILL_POLLING 0x01 /* Polling in use */ /* * These functions pointer types are exported by the mac/dls layer. * we need to duplicate the definitions here because we cannot * include mac/dls header files here. */ typedef boolean_t (*ip_mac_intr_disable_t)(void *); typedef void (*ip_mac_intr_enable_t)(void *); typedef ip_mac_tx_cookie_t (*ip_dld_tx_t)(void *, mblk_t *, uint64_t, uint16_t); typedef void (*ip_flow_enable_t)(void *, ip_mac_tx_cookie_t); typedef void *(*ip_dld_callb_t)(void *, ip_flow_enable_t, void *); typedef boolean_t (*ip_dld_fctl_t)(void *, ip_mac_tx_cookie_t); typedef int (*ip_capab_func_t)(void *, uint_t, void *, uint_t); /* * POLLING README * sq_get_pkts() is called to pick packets from softring in poll mode. It * calls rr_rx to get the chain and process it with rr_ip_accept. * rr_rx = mac_soft_ring_poll() to pick packets * rr_ip_accept = ip_accept_tcp() to process packets */ /* * XXX: With protocol, service specific squeues, they will have * specific acceptor functions. */ typedef mblk_t *(*ip_mac_rx_t)(void *, size_t); typedef mblk_t *(*ip_accept_t)(ill_t *, ill_rx_ring_t *, squeue_t *, mblk_t *, mblk_t **, uint_t *); /* * rr_intr_enable, rr_intr_disable, rr_rx_handle, rr_rx: * May be accessed while in the squeue AND after checking that SQS_POLL_CAPAB * is set. * * rr_ring_state: Protected by ill_lock. */ struct ill_rx_ring { ip_mac_intr_disable_t rr_intr_disable; /* Interrupt disabling func */ ip_mac_intr_enable_t rr_intr_enable; /* Interrupt enabling func */ void *rr_intr_handle; /* Handle interrupt funcs */ ip_mac_rx_t rr_rx; /* Driver receive function */ ip_accept_t rr_ip_accept; /* IP accept function */ void *rr_rx_handle; /* Handle for Rx ring */ squeue_t *rr_sqp; /* Squeue the ring is bound to */ ill_t *rr_ill; /* back pointer to ill */ ip_ring_state_t rr_ring_state; /* State of this ring */ }; /* * IP - DLD direct function call capability * Suffixes, df - dld function, dh - dld handle, * cf - client (IP) function, ch - client handle */ typedef struct ill_dld_direct_s { /* DLD provided driver Tx */ ip_dld_tx_t idd_tx_df; /* str_mdata_fastpath_put */ void *idd_tx_dh; /* dld_str_t *dsp */ ip_dld_callb_t idd_tx_cb_df; /* mac_tx_srs_notify */ void *idd_tx_cb_dh; /* mac_client_handle_t *mch */ ip_dld_fctl_t idd_tx_fctl_df; /* mac_tx_is_flow_blocked */ void *idd_tx_fctl_dh; /* mac_client_handle */ } ill_dld_direct_t; /* IP - DLD polling capability */ typedef struct ill_dld_poll_s { ill_rx_ring_t idp_ring_tbl[ILL_MAX_RINGS]; } ill_dld_poll_t; /* Describes ill->ill_dld_capab */ struct ill_dld_capab_s { ip_capab_func_t idc_capab_df; /* dld_capab_func */ void *idc_capab_dh; /* dld_str_t *dsp */ ill_dld_direct_t idc_direct; ill_dld_poll_t idc_poll; }; /* * IP squeues exports */ extern boolean_t ip_squeue_fanout; #define IP_SQUEUE_GET(hint) ip_squeue_random(hint) extern void ip_squeue_init(void (*)(squeue_t *)); extern squeue_t *ip_squeue_random(uint_t); extern squeue_t *ip_squeue_get(ill_rx_ring_t *); extern squeue_t *ip_squeue_getfree(pri_t); extern int ip_squeue_cpu_move(squeue_t *, processorid_t); extern void *ip_squeue_add_ring(ill_t *, void *); extern void ip_squeue_bind_ring(ill_t *, ill_rx_ring_t *, processorid_t); extern void ip_squeue_clean_ring(ill_t *, ill_rx_ring_t *); extern void ip_squeue_quiesce_ring(ill_t *, ill_rx_ring_t *); extern void ip_squeue_restart_ring(ill_t *, ill_rx_ring_t *); extern void ip_squeue_clean_all(ill_t *); extern boolean_t ip_source_routed(ipha_t *, ip_stack_t *); extern void tcp_wput(queue_t *, mblk_t *); extern int ip_fill_mtuinfo(conn_t *, ip_xmit_attr_t *, struct ip6_mtuinfo *); extern hook_t *ipobs_register_hook(netstack_t *, pfv_t); extern void ipobs_unregister_hook(netstack_t *, hook_t *); extern void ipobs_hook(mblk_t *, int, zoneid_t, zoneid_t, const ill_t *, ip_stack_t *); typedef void (*ipsq_func_t)(ipsq_t *, queue_t *, mblk_t *, void *); extern void dce_g_init(void); extern void dce_g_destroy(void); extern void dce_stack_init(ip_stack_t *); extern void dce_stack_destroy(ip_stack_t *); extern void dce_cleanup(uint_t, ip_stack_t *); extern dce_t *dce_get_default(ip_stack_t *); extern dce_t *dce_lookup_pkt(mblk_t *, ip_xmit_attr_t *, uint_t *); extern dce_t *dce_lookup_v4(ipaddr_t, ip_stack_t *, uint_t *); extern dce_t *dce_lookup_v6(const in6_addr_t *, uint_t, ip_stack_t *, uint_t *); extern dce_t *dce_lookup_and_add_v4(ipaddr_t, ip_stack_t *); extern dce_t *dce_lookup_and_add_v6(const in6_addr_t *, uint_t, ip_stack_t *); extern int dce_update_uinfo_v4(ipaddr_t, iulp_t *, ip_stack_t *); extern int dce_update_uinfo_v6(const in6_addr_t *, uint_t, iulp_t *, ip_stack_t *); extern int dce_update_uinfo(const in6_addr_t *, uint_t, iulp_t *, ip_stack_t *); extern void dce_increment_generation(dce_t *); extern void dce_increment_all_generations(boolean_t, ip_stack_t *); extern void dce_refrele(dce_t *); extern void dce_refhold(dce_t *); extern void dce_refrele_notr(dce_t *); extern void dce_refhold_notr(dce_t *); mblk_t *ip_snmp_get_mib2_ip_dce(queue_t *, mblk_t *, ip_stack_t *ipst); extern ip_laddr_t ip_laddr_verify_v4(ipaddr_t, zoneid_t, ip_stack_t *, boolean_t); extern ip_laddr_t ip_laddr_verify_v6(const in6_addr_t *, zoneid_t, ip_stack_t *, boolean_t, uint_t); extern int ip_laddr_fanout_insert(conn_t *); extern boolean_t ip_verify_src(mblk_t *, ip_xmit_attr_t *, uint_t *); extern int ip_verify_ire(mblk_t *, ip_xmit_attr_t *); extern mblk_t *ip_xmit_attr_to_mblk(ip_xmit_attr_t *); extern boolean_t ip_xmit_attr_from_mblk(mblk_t *, ip_xmit_attr_t *); extern mblk_t *ip_xmit_attr_free_mblk(mblk_t *); extern mblk_t *ip_recv_attr_to_mblk(ip_recv_attr_t *); extern boolean_t ip_recv_attr_from_mblk(mblk_t *, ip_recv_attr_t *); extern mblk_t *ip_recv_attr_free_mblk(mblk_t *); extern boolean_t ip_recv_attr_is_mblk(mblk_t *); /* * Squeue tags. Tags only need to be unique when the callback function is the * same to distinguish between different calls, but we use unique tags for * convenience anyway. */ #define SQTAG_IP_INPUT 1 #define SQTAG_TCP_INPUT_ICMP_ERR 2 #define SQTAG_TCP6_INPUT_ICMP_ERR 3 #define SQTAG_IP_TCP_INPUT 4 #define SQTAG_IP6_TCP_INPUT 5 #define SQTAG_IP_TCP_CLOSE 6 #define SQTAG_TCP_OUTPUT 7 #define SQTAG_TCP_TIMER 8 #define SQTAG_TCP_TIMEWAIT 9 #define SQTAG_TCP_ACCEPT_FINISH 10 #define SQTAG_TCP_ACCEPT_FINISH_Q0 11 #define SQTAG_TCP_ACCEPT_PENDING 12 #define SQTAG_TCP_LISTEN_DISCON 13 #define SQTAG_TCP_CONN_REQ_1 14 #define SQTAG_TCP_EAGER_BLOWOFF 15 #define SQTAG_TCP_EAGER_CLEANUP 16 #define SQTAG_TCP_EAGER_CLEANUP_Q0 17 #define SQTAG_TCP_CONN_IND 18 #define SQTAG_TCP_RSRV 19 #define SQTAG_TCP_ABORT_BUCKET 20 #define SQTAG_TCP_REINPUT 21 #define SQTAG_TCP_REINPUT_EAGER 22 #define SQTAG_TCP_INPUT_MCTL 23 #define SQTAG_TCP_RPUTOTHER 24 #define SQTAG_IP_PROTO_AGAIN 25 #define SQTAG_IP_FANOUT_TCP 26 #define SQTAG_IPSQ_CLEAN_RING 27 #define SQTAG_TCP_WPUT_OTHER 28 #define SQTAG_TCP_CONN_REQ_UNBOUND 29 #define SQTAG_TCP_SEND_PENDING 30 #define SQTAG_BIND_RETRY 31 #define SQTAG_UDP_FANOUT 32 #define SQTAG_UDP_INPUT 33 #define SQTAG_UDP_WPUT 34 #define SQTAG_UDP_OUTPUT 35 #define SQTAG_TCP_KSSL_INPUT 36 #define SQTAG_TCP_DROP_Q0 37 #define SQTAG_TCP_CONN_REQ_2 38 #define SQTAG_IP_INPUT_RX_RING 39 #define SQTAG_SQUEUE_CHANGE 40 #define SQTAG_CONNECT_FINISH 41 #define SQTAG_SYNCHRONOUS_OP 42 #define SQTAG_TCP_SHUTDOWN_OUTPUT 43 #define SQTAG_TCP_IXA_CLEANUP 44 #define SQTAG_TCP_SEND_SYNACK 45 extern sin_t sin_null; /* Zero address for quick clears */ extern sin6_t sin6_null; /* Zero address for quick clears */ #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _INET_IP_H */