29#if defined (FAILOVER_PROTOCOL)
30struct failover_option_info {
33 enum { FT_UINT8, FT_IPADDR, FT_UINT32, FT_BYTES, FT_TEXT_OR_BYTES,
34 FT_DDNS, FT_DDNS1, FT_UINT16, FT_TEXT,
35 FT_UNDEF, FT_DIGEST } type;
47#ifndef DEFAULT_MAX_BALANCE_TIME
48# define DEFAULT_MAX_BALANCE_TIME 3600
51#ifndef DEFAULT_MIN_BALANCE_TIME
52# define DEFAULT_MIN_BALANCE_TIME 60
55#ifndef DEFAULT_MAX_LEASE_MISBALANCE
56# define DEFAULT_MAX_LEASE_MISBALANCE 15
59#ifndef DEFAULT_MAX_LEASE_OWNERSHIP
60# define DEFAULT_MAX_LEASE_OWNERSHIP 10
63#ifndef DEFAULT_MAX_FLYING_UPDATES
64# define DEFAULT_MAX_FLYING_UPDATES 100
67#ifndef DEFAULT_MAX_RESPONSE_DELAY
68# define DEFAULT_MAX_RESPONSE_DELAY 20
77#ifndef DEFAULT_FAILOVER_PORT
78# define DEFAULT_FAILOVER_PORT 647
81#define FM_OFFSET(x) (long)(&(((failover_message_t *)0) -> x))
89#define FTO_ADDRESSES_TRANSFERRED 1
90#define FTB_ADDRESSES_TRANSFERRED 0x00000002
91#define FTO_ASSIGNED_IP_ADDRESS 2
92#define FTB_ASSIGNED_IP_ADDRESS 0x00000004
93#define FTO_BINDING_STATUS 3
94#define FTB_BINDING_STATUS 0x00000008
95#define FTO_CLIENT_IDENTIFIER 4
96#define FTB_CLIENT_IDENTIFIER 0x00000010
98#define FTB_CHADDR 0x00000020
100#define FTB_CLTT 0x00000040
101#define FTO_REPLY_OPTIONS 7
102#define FTB_REPLY_OPTIONS 0x00000080
103#define FTO_REQUEST_OPTIONS 8
104#define FTB_REQUEST_OPTIONS 0x00000100
106#define FTB_DDNS 0x00000200
107#define FTO_DELAYED_SERVICE 10
108#define FTB_DELAYED_SERVICE 0x00000400
110#define FTB_HBA 0x00000800
111#define FTO_IP_FLAGS 12
112#define FTB_IP_FLAGS 0x00001000
113#define FTO_LEASE_EXPIRY 13
114#define FTB_LEASE_EXPIRY 0x00002000
115#define FTO_MAX_UNACKED 14
116#define FTB_MAX_UNACKED 0x00004000
118#define FTB_MCLT 0x00008000
119#define FTO_MESSAGE 16
120#define FTB_MESSAGE 0x00010000
121#define FTO_MESSAGE_DIGEST 17
122#define FTB_MESSAGE_DIGEST 0x00020000
123#define FTO_POTENTIAL_EXPIRY 18
124#define FTB_POTENTIAL_EXPIRY 0x00040000
125#define FTO_RECEIVE_TIMER 19
126#define FTB_RECEIVE_TIMER 0x00080000
127#define FTO_PROTOCOL_VERSION 20
128#define FTB_PROTOCOL_VERSION 0x00100000
129#define FTO_REJECT_REASON 21
130#define FTB_REJECT_REASON 0x00200000
131#define FTO_RELATIONSHIP_NAME 22
132#define FTB_RELATIONSHIP_NAME 0x00400000
133#define FTO_SERVER_FLAGS 23
134#define FTB_SERVER_FLAGS 0x00800000
135#define FTO_SERVER_STATE 24
136#define FTB_SERVER_STATE 0x01000000
138#define FTB_STOS 0x02000000
139#define FTO_TLS_REPLY 26
140#define FTB_TLS_REPLY 0x04000000
141#define FTO_TLS_REQUEST 27
142#define FTB_TLS_REQUEST 0x08000000
143#define FTO_VENDOR_CLASS 28
144#define FTB_VENDOR_CLASS 0x10000000
145#define FTO_VENDOR_OPTIONS 29
146#define FTB_VENDOR_OPTIONS 0x20000000
148#define FTO_MAX FTO_VENDOR_OPTIONS
152#define FTM_POOLRESP 2
156#define FTM_CONNECTACK 6
157#define FTM_UPDREQALL 7
161#define FTM_CONTACT 11
162#define FTM_DISCONNECT 12
164#define FTM_MAX FTM_DISCONNECT
167#define FTR_ILLEGAL_IP_ADDR 1
168#define FTR_FATAL_CONFLICT 2
169#define FTR_MISSING_BINDINFO 3
170#define FTR_TIMEMISMATCH 4
171#define FTR_INVALID_MCLT 5
172#define FTR_MISC_REJECT 6
173#define FTR_DUP_CONNECTION 7
174#define FTR_INVALID_PARTNER 8
175#define FTR_TLS_UNSUPPORTED 9
176#define FTR_TLS_UNCONFIGURED 10
177#define FTR_TLS_REQUIRED 11
178#define FTR_DIGEST_UNSUPPORTED 12
179#define FTR_DIGEST_UNCONFIGURED 13
180#define FTR_VERSION_MISMATCH 14
181#define FTR_OUTDATED_BIND_INFO 15
182#define FTR_LESS_CRIT_BIND_INFO 16
183#define FTR_NO_TRAFFIC 17
184#define FTR_HBA_CONFLICT 18
185#define FTR_IP_NOT_RESERVED 19
186#define FTR_IP_DIGEST_FAILURE 20
187#define FTR_IP_MISSING_DIGEST 21
188#define FTR_UNKNOWN 254
191#define DHCP_FAILOVER_MIN_MESSAGE_SIZE 12
192#define DHCP_FAILOVER_MAX_MESSAGE_SIZE 2048
195#define FTF_SERVER_STARTUP 1
198#define FTF_DDNS_C 0x0001
199#define FTF_DDNS_A 0x0002
200#define FTF_DDNS_D 0x0004
201#define FTF_DDNS_P 0x0008
204#define FTF_IP_FLAG_RESERVE 0x0001
205#define FTF_IP_FLAG_BOOTP 0x0002
208#define FTT_MESSAGE_DIGEST_HMAC_MD5 0x01
210typedef struct failover_message {
212 struct failover_message *next;
221 u_int8_t binding_status;
222 u_int8_t delayed_service;
223 u_int8_t protocol_version;
224 u_int8_t reject_reason;
225 u_int8_t server_flags;
226 u_int8_t server_state;
228 u_int8_t tls_request;
234 u_int32_t addresses_transferred;
235 u_int32_t assigned_addr;
238 u_int32_t max_unacked;
240 u_int32_t potential_expiry;
241 u_int32_t receive_timer;
245 failover_option_t chaddr;
246 failover_option_t client_identifier;
247 failover_option_t hba;
248 failover_option_t message;
249 failover_option_t message_digest;
250 failover_option_t relationship_name;
251 failover_option_t reply_options;
252 failover_option_t request_options;
253 failover_option_t vendor_class;
254 failover_option_t vendor_options;
265 enum dhcp_flink_state {
267 dhcp_flink_message_length_wait,
268 dhcp_flink_message_wait,
269 dhcp_flink_disconnected,
272 failover_message_t *imsg;
273 struct _dhcp_failover_state *state_object;
276 u_int8_t imsg_payoff;
278} dhcp_failover_link_t;
280typedef struct _dhcp_failover_listener {
282 struct _dhcp_failover_listener *next;
283 omapi_addr_t address;
324#if defined (FAILOVER_PROTOCOL)
325typedef struct _dhcp_failover_config {
328 u_int32_t max_flying_updates;
331 u_int32_t max_response_delay;
332} dhcp_failover_config_t;
334typedef struct _dhcp_failover_state {
336 struct _dhcp_failover_state *next;
338 dhcp_failover_config_t me;
339 dhcp_failover_config_t partner;
345 int load_balance_max_secs;
347 u_int32_t max_lease_misbalance, max_lease_ownership;
348 u_int32_t max_balance, min_balance;
349 TIME last_balance, sched_balance;
351 u_int32_t auto_partner_down;
358 dhcp_failover_link_t *link_to_peer;
365 TIME last_packet_sent;
366 TIME last_timestamp_received;
369 struct lease *update_queue_head;
371 struct lease *update_queue_tail;
373 struct lease *ack_queue_head;
375 struct lease *ack_queue_tail;
377 struct lease *send_update_done;
379 int cur_unacked_updates;
384 failover_message_t *toack_queue_head;
385 failover_message_t *toack_queue_tail;
393} dhcp_failover_state_t;
395extern int check_secs_byte_order;
397#define DHCP_FAILOVER_VERSION 1
struct iaddr server_identifier
@ communications_interrupted
#define OMAPI_OBJECT_PREAMBLE
int option_cache(struct option_cache **oc, struct data_string *dp, struct expression *expr, struct option *option, const char *file, int line)