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https://gitlab.isc.org/isc-projects/dhcp
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1ba87b376b
should send out option 81 (FQDN). Defaults to "on". If set to "off", the FQDN option is not sent, even if the client requested it. This is needed because some clients misbehave otherwise. [rt16624]
421 lines
16 KiB
C
421 lines
16 KiB
C
/* stables.c
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Tables of information only used by server... */
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/*
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* Copyright (c) 2004-2007 by Internet Systems Consortium, Inc. ("ISC")
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* Copyright (c) 1995-2003 by Internet Software Consortium
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Internet Systems Consortium, Inc.
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* 950 Charter Street
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* Redwood City, CA 94063
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* <info@isc.org>
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* http://www.isc.org/
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*
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* This software has been written for Internet Systems Consortium
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* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
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* To learn more about Internet Systems Consortium, see
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* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
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* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
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* ``http://www.nominum.com''.
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*/
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#ifndef lint
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static char copyright[] =
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"$Id: stables.c,v 1.37 2007/04/27 22:48:00 each Exp $ Copyright (c) 2004-2007 Internet Systems Consortium. All rights reserved.\n";
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#endif /* not lint */
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#include "dhcpd.h"
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#if defined (FAILOVER_PROTOCOL)
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/* This is used to indicate some kind of failure when generating a
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failover option. */
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failover_option_t null_failover_option = { 0, 0 };
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failover_option_t skip_failover_option = { 0, 0 };
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/* Information about failover options, for printing, encoding
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and decoding. */
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struct failover_option_info ft_options [] =
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{
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{ 0, "unused", FT_UNDEF, 0, 0, 0 },
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{ FTO_ADDRESSES_TRANSFERRED, "addresses-transferred", FT_UINT32, 1,
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FM_OFFSET(addresses_transferred), FTB_ADDRESSES_TRANSFERRED },
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{ FTO_ASSIGNED_IP_ADDRESS, "assigned-IP-address", FT_IPADDR, 1,
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FM_OFFSET(assigned_addr), FTB_ASSIGNED_IP_ADDRESS },
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{ FTO_BINDING_STATUS, "binding-status", FT_UINT8, 1,
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FM_OFFSET(binding_status), FTB_BINDING_STATUS },
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{ FTO_CLIENT_IDENTIFIER, "client-identifier", FT_BYTES, 0,
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FM_OFFSET(client_identifier), FTB_CLIENT_IDENTIFIER },
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{ FTO_CHADDR, "client-hardware-address", FT_BYTES, 0,
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FM_OFFSET(chaddr), FTB_CHADDR },
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{ FTO_CLTT, "client-last-transaction-time", FT_UINT32, 1,
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FM_OFFSET(cltt), FTB_CLTT },
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{ FTO_REPLY_OPTIONS, "client-reply-options", FT_BYTES, 0,
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FM_OFFSET(reply_options), FTB_REPLY_OPTIONS },
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{ FTO_REQUEST_OPTIONS, "client-request-options", FT_BYTES, 0,
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FM_OFFSET(request_options), FTB_REQUEST_OPTIONS },
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{ FTO_DDNS, "DDNS", FT_DDNS, 1, FM_OFFSET(ddns), FTB_DDNS },
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{ FTO_DELAYED_SERVICE, "delayed-service", FT_UINT8, 1,
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FM_OFFSET(delayed_service), FTB_DELAYED_SERVICE },
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{ FTO_HBA, "hash-bucket-assignment", FT_BYTES, 0,
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FM_OFFSET(hba), FTB_HBA },
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{ FTO_IP_FLAGS, "IP-flags", FT_UINT16, 1,
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FM_OFFSET(ip_flags), FTB_IP_FLAGS },
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{ FTO_LEASE_EXPIRY, "lease-expiration-time", FT_UINT32, 1,
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FM_OFFSET(expiry), FTB_LEASE_EXPIRY },
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{ FTO_MAX_UNACKED, "max-unacked-bndupd", FT_UINT32, 1,
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FM_OFFSET(max_unacked), FTB_MAX_UNACKED },
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{ FTO_MCLT, "MCLT", FT_UINT32, 1, FM_OFFSET(mclt), FTB_MCLT },
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{ FTO_MESSAGE, "message", FT_TEXT, 0,
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FM_OFFSET(message), FTB_MESSAGE },
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{ FTO_MESSAGE_DIGEST, "message-digest", FT_BYTES, 0,
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FM_OFFSET(message_digest), FTB_MESSAGE_DIGEST },
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{ FTO_POTENTIAL_EXPIRY, "potential-expiration-time", FT_UINT32, 1,
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FM_OFFSET(potential_expiry), FTB_POTENTIAL_EXPIRY },
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{ FTO_RECEIVE_TIMER, "receive-timer", FT_UINT32, 1,
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FM_OFFSET(receive_timer), FTB_RECEIVE_TIMER },
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{ FTO_PROTOCOL_VERSION, "protocol-version", FT_UINT8, 1,
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FM_OFFSET(protocol_version), FTB_PROTOCOL_VERSION },
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{ FTO_REJECT_REASON, "reject-reason", FT_UINT8, 1,
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FM_OFFSET(reject_reason), FTB_REJECT_REASON },
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{ FTO_RELATIONSHIP_NAME, "relationship-name", FT_BYTES, 0,
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FM_OFFSET(relationship_name), FTB_RELATIONSHIP_NAME },
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{ FTO_SERVER_FLAGS, "server-flags", FT_UINT8, 1,
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FM_OFFSET(server_flags), FTB_SERVER_FLAGS },
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{ FTO_SERVER_STATE, "server-state", FT_UINT8, 1,
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FM_OFFSET(server_state), FTB_SERVER_STATE },
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{ FTO_STOS, "start-time-of-state", FT_UINT32, 1,
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FM_OFFSET(stos), FTB_STOS },
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{ FTO_TLS_REPLY, "TLS-reply", FT_UINT8, 1,
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FM_OFFSET(tls_reply), FTB_TLS_REPLY },
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{ FTO_TLS_REQUEST, "TLS-request", FT_UINT8, 1,
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FM_OFFSET(tls_request), FTB_TLS_REQUEST },
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{ FTO_VENDOR_CLASS, "vendor-class-identifier", FT_BYTES, 0,
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FM_OFFSET(vendor_class), FTB_VENDOR_CLASS },
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{ FTO_VENDOR_OPTIONS, "vendor-specific-options", FT_BYTES, 0,
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FM_OFFSET(vendor_options), FTB_VENDOR_OPTIONS }
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};
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/* These are really options that make sense for a particular request - if
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some other option comes in, we're not going to use it, so we can just
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discard it. Note that the message-digest option is allowed for all
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message types, but is not saved - it's just used to validate the message
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and then discarded - so it's not mentioned here. */
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u_int32_t fto_allowed [] = {
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0, /* 0 unused */
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0, /* 1 POOLREQ */
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FTB_ADDRESSES_TRANSFERRED, /* 2 POOLRESP */
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(FTB_ASSIGNED_IP_ADDRESS | FTB_BINDING_STATUS | FTB_CLIENT_IDENTIFIER |
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FTB_CHADDR | FTB_DDNS | FTB_IP_FLAGS | FTB_LEASE_EXPIRY |
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FTB_POTENTIAL_EXPIRY | FTB_STOS | FTB_CLTT | FTB_REQUEST_OPTIONS |
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FTB_REPLY_OPTIONS), /* 3 BNDUPD */
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(FTB_ASSIGNED_IP_ADDRESS | FTB_BINDING_STATUS | FTB_CLIENT_IDENTIFIER |
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FTB_CHADDR | FTB_DDNS | FTB_IP_FLAGS | FTB_LEASE_EXPIRY |
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FTB_POTENTIAL_EXPIRY | FTB_STOS | FTB_CLTT | FTB_REQUEST_OPTIONS |
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FTB_REPLY_OPTIONS | FTB_REJECT_REASON | FTB_MESSAGE), /* 4 BNDACK */
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(FTB_RELATIONSHIP_NAME | FTB_MAX_UNACKED | FTB_RECEIVE_TIMER |
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FTB_VENDOR_CLASS | FTB_PROTOCOL_VERSION | FTB_TLS_REQUEST |
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FTB_MCLT | FTB_HBA), /* 5 CONNECT */
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(FTB_RELATIONSHIP_NAME | FTB_MAX_UNACKED | FTB_RECEIVE_TIMER |
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FTB_VENDOR_CLASS | FTB_PROTOCOL_VERSION | FTB_TLS_REPLY |
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FTB_REJECT_REASON | FTB_MESSAGE), /* CONNECTACK */
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0, /* 7 UPDREQALL */
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0, /* 8 UPDDONE */
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0, /* 9 UPDREQ */
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(FTB_SERVER_STATE | FTB_SERVER_FLAGS | FTB_STOS), /* 10 STATE */
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0, /* 11 CONTACT */
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(FTB_REJECT_REASON | FTB_MESSAGE) /* 12 DISCONNECT */
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};
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/* Sizes of the various types. */
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int ft_sizes [] = {
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1, /* FT_UINT8 */
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4, /* FT_IPADDR */
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4, /* FT_UINT32 */
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1, /* FT_BYTES */
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1, /* FT_TEXT_OR_BYTES */
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0, /* FT_DDNS */
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0, /* FT_DDNS1 */
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2, /* FT_UINT16 */
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1, /* FT_TEXT */
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0, /* FT_UNDEF */
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0, /* FT_DIGEST */
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};
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/* Names of the various failover link states. */
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const char *dhcp_flink_state_names [] = {
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"invalid state 0",
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"startup",
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"message length wait",
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"message wait",
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"disconnected"
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};
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#endif /* FAILOVER_PROTOCOL */
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/* Failover binding state names. These are used even if there is no
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failover protocol support. */
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const char *binding_state_names [] = {
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"free", "active", "expired", "released", "abandoned",
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"reset", "backup" };
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struct universe agent_universe;
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static struct option agent_options[] = {
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{ "circuit-id", "X", &agent_universe, 1, 1 },
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{ "remote-id", "X", &agent_universe, 2, 1 },
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{ "agent-id", "I", &agent_universe, 3, 1 },
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{ "DOCSIS-device-class", "L", &agent_universe, 4, 1 },
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{ "link-selection", "I", &agent_universe, 5, 1 },
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{ NULL, NULL, NULL, 0, 0 }
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};
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struct universe server_universe;
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static struct option server_options[] = {
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{ "default-lease-time", "T", &server_universe, 1, 1 },
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{ "max-lease-time", "T", &server_universe, 2, 1 },
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{ "min-lease-time", "T", &server_universe, 3, 1 },
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{ "dynamic-bootp-lease-cutoff", "T", &server_universe, 4, 1 },
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{ "dynamic-bootp-lease-length", "L", &server_universe, 5, 1 },
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{ "boot-unknown-clients", "f", &server_universe, 6, 1 },
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{ "dynamic-bootp", "f", &server_universe, 7, 1 },
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{ "allow-bootp", "f", &server_universe, 8, 1 },
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{ "allow-booting", "f", &server_universe, 9, 1 },
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{ "one-lease-per-client", "f", &server_universe, 10, 1 },
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{ "get-lease-hostnames", "f", &server_universe, 11, 1 },
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{ "use-host-decl-names", "f", &server_universe, 12, 1 },
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{ "use-lease-addr-for-default-route", "f",
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&server_universe, 13, 1 },
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{ "min-secs", "B", &server_universe, 14, 1 },
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{ "filename", "t", &server_universe, 15, 1 },
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{ "server-name", "t", &server_universe, 16, 1 },
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{ "next-server", "I", &server_universe, 17, 1 },
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{ "authoritative", "f", &server_universe, 18, 1 },
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{ "vendor-option-space", "U", &server_universe, 19, 1 },
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{ "always-reply-rfc1048", "f", &server_universe, 20, 1 },
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{ "site-option-space", "X", &server_universe, 21, 1 },
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{ "always-broadcast", "f", &server_universe, 22, 1 },
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{ "ddns-domainname", "t", &server_universe, 23, 1 },
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{ "ddns-hostname", "t", &server_universe, 24, 1 },
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{ "ddns-rev-domainname", "t", &server_universe, 25, 1 },
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{ "lease-file-name", "t", &server_universe, 26, 1 },
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{ "pid-file-name", "t", &server_universe, 27, 1 },
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{ "duplicates", "f", &server_universe, 28, 1 },
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{ "declines", "f", &server_universe, 29, 1 },
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{ "ddns-updates", "f", &server_universe, 30, 1 },
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{ "omapi-port", "S", &server_universe, 31, 1 },
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{ "local-port", "S", &server_universe, 32, 1 },
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{ "limited-broadcast-address", "I", &server_universe, 33, 1 },
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{ "remote-port", "S", &server_universe, 34, 1 },
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{ "local-address", "I", &server_universe, 35, 1 },
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{ "omapi-key", "d", &server_universe, 36, 1 },
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{ "stash-agent-options", "f", &server_universe, 37, 1 },
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{ "ddns-ttl", "T", &server_universe, 38, 1 },
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{ "ddns-update-style", "Nddns-styles.", &server_universe, 39, 1 },
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{ "client-updates", "f", &server_universe, 40, 1 },
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{ "update-optimization", "f", &server_universe, 41, 1 },
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{ "ping-check", "f", &server_universe, 42, 1 },
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{ "update-static-leases", "f", &server_universe, 43, 1 },
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{ "log-facility", "Nsyslog-facilities.",
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&server_universe, 44, 1 },
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{ "do-forward-updates", "f", &server_universe, 45, 1 },
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{ "ping-timeout", "T", &server_universe, 46, 1 },
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{ "infinite-is-reserved", "f", &server_universe, 47, 1 },
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{ "update-conflict-detection", "f", &server_universe, 48, 1 },
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{ "leasequery", "f", &server_universe, 49, 1 },
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{ "adaptive-lease-time-threshold", "B", &server_universe, 50, 1 },
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{ "do-reverse-updates", "f", &server_universe, 51, 1 },
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{ "fqdn-reply", "f", &server_universe, 52, 1 },
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{ NULL, NULL, NULL, 0, 0 }
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};
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struct enumeration_value ddns_styles_values [] = {
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{ "none", 0 },
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{ "ad-hoc", 1 },
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{ "interim", 2 },
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{ (char *)0, 0 }
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};
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struct enumeration ddns_styles = {
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(struct enumeration *)0,
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"ddns-styles",
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ddns_styles_values
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};
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struct enumeration_value syslog_values [] = {
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#if defined (LOG_KERN)
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{ "kern", LOG_KERN },
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#endif
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#if defined (LOG_USER)
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{ "user", LOG_USER },
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#endif
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#if defined (LOG_MAIL)
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{ "mail", LOG_MAIL },
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#endif
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#if defined (LOG_DAEMON)
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{ "daemon", LOG_DAEMON },
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#endif
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#if defined (LOG_AUTH)
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{ "auth", LOG_AUTH },
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#endif
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#if defined (LOG_SYSLOG)
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{ "syslog", LOG_SYSLOG },
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#endif
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#if defined (LOG_LPR)
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{ "lpr", LOG_LPR },
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#endif
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#if defined (LOG_NEWS)
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{ "news", LOG_NEWS },
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#endif
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#if defined (LOG_UUCP)
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{ "uucp", LOG_UUCP },
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#endif
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#if defined (LOG_CRON)
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{ "cron", LOG_CRON },
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#endif
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#if defined (LOG_AUTHPRIV)
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{ "authpriv", LOG_AUTHPRIV },
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#endif
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#if defined (LOG_FTP)
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{ "ftp", LOG_FTP },
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#endif
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#if defined (LOG_LOCAL0)
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{ "local0", LOG_LOCAL0 },
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#endif
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#if defined (LOG_LOCAL1)
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{ "local1", LOG_LOCAL1 },
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#endif
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#if defined (LOG_LOCAL2)
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{ "local2", LOG_LOCAL2 },
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#endif
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#if defined (LOG_LOCAL3)
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{ "local3", LOG_LOCAL3 },
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#endif
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#if defined (LOG_LOCAL4)
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{ "local4", LOG_LOCAL4 },
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#endif
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#if defined (LOG_LOCAL5)
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{ "local5", LOG_LOCAL5 },
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#endif
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#if defined (LOG_LOCAL6)
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{ "local6", LOG_LOCAL6 },
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#endif
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#if defined (LOG_LOCAL7)
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{ "local7", LOG_LOCAL7 },
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#endif
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{ (char *)0, 0 }
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};
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struct enumeration syslog_enum = {
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(struct enumeration *)0,
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"syslog-facilities",
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syslog_values
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};
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void initialize_server_option_spaces()
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{
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int i;
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unsigned code;
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/* Set up the Relay Agent Information Option suboption space... */
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agent_universe.name = "agent";
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agent_universe.option_state_dereference =
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linked_option_state_dereference;
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agent_universe.lookup_func = lookup_linked_option;
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agent_universe.save_func = save_linked_option;
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agent_universe.delete_func = delete_linked_option;
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agent_universe.encapsulate = linked_option_space_encapsulate;
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agent_universe.foreach = linked_option_space_foreach;
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agent_universe.decode = parse_option_buffer;
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agent_universe.index = universe_count++;
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agent_universe.length_size = 1;
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agent_universe.tag_size = 1;
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agent_universe.get_tag = getUChar;
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agent_universe.store_tag = putUChar;
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agent_universe.get_length = getUChar;
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agent_universe.store_length = putUChar;
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universes [agent_universe.index] = &agent_universe;
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if (!option_name_new_hash(&agent_universe.name_hash,
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AGENT_HASH_SIZE, MDL) ||
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!option_code_new_hash(&agent_universe.code_hash,
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AGENT_HASH_SIZE, MDL))
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log_fatal ("Can't allocate agent option hash table.");
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for (i = 0 ; agent_options[i].name ; i++) {
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option_code_hash_add(agent_universe.code_hash,
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&agent_options[i].code, 0,
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&agent_options[i], MDL);
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option_name_hash_add(agent_universe.name_hash,
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agent_options[i].name, 0,
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&agent_options[i], MDL);
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}
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#if defined(REPORT_HASH_PERFORMANCE)
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log_info("Relay Agent name hash: %s",
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option_name_hash_report(agent_universe.name_hash));
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log_info("Relay Agent code hash: %s",
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option_code_hash_report(agent_universe.code_hash));
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#endif
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code = DHO_DHCP_AGENT_OPTIONS;
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option_code_hash_lookup(&agent_universe.enc_opt,
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dhcp_universe.code_hash, &code, 0, MDL);
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/* Set up the server option universe... */
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server_universe.name = "server";
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server_universe.lookup_func = lookup_hashed_option;
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server_universe.option_state_dereference =
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hashed_option_state_dereference;
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server_universe.save_func = save_hashed_option;
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server_universe.delete_func = delete_hashed_option;
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server_universe.encapsulate = hashed_option_space_encapsulate;
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server_universe.foreach = hashed_option_space_foreach;
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server_universe.length_size = 1; /* Never used ... */
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server_universe.tag_size = 4;
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server_universe.store_tag = putUChar;
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server_universe.store_length = putUChar;
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server_universe.index = universe_count++;
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universes [server_universe.index] = &server_universe;
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if (!option_name_new_hash(&server_universe.name_hash,
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|
SERVER_HASH_SIZE, MDL) ||
|
|
!option_code_new_hash(&server_universe.code_hash,
|
|
SERVER_HASH_SIZE, MDL))
|
|
log_fatal ("Can't allocate server option hash table.");
|
|
for (i = 0 ; server_options[i].name ; i++) {
|
|
option_code_hash_add(server_universe.code_hash,
|
|
&server_options[i].code, 0,
|
|
&server_options[i], MDL);
|
|
option_name_hash_add(server_universe.name_hash,
|
|
server_options[i].name, 0,
|
|
&server_options[i], MDL);
|
|
}
|
|
#if defined(REPORT_HASH_PERFORMANCE)
|
|
log_info("Server-Config Option name hash: %s",
|
|
option_name_hash_report(server_universe.name_hash));
|
|
log_info("Server-Config Option code hash: %s",
|
|
option_code_hash_report(server_universe.code_hash));
|
|
#endif
|
|
|
|
/* Add the server and agent option spaces to the option space hash. */
|
|
universe_hash_add (universe_hash,
|
|
agent_universe.name, 0, &agent_universe, MDL);
|
|
universe_hash_add (universe_hash,
|
|
server_universe.name, 0, &server_universe, MDL);
|
|
|
|
/* Make the server universe the configuration option universe. */
|
|
config_universe = &server_universe;
|
|
|
|
code = SV_VENDOR_OPTION_SPACE;
|
|
option_code_hash_lookup(&vendor_cfg_option, server_universe.code_hash,
|
|
&code, 0, MDL);
|
|
}
|