3 * data structure and functionality definitions
9 #include <linux/types.h> /* For __beXX types in userland */
11 #define IP_VS_VERSION_CODE 0x010201
12 #define NVERSION(version) \
13 (version >> 16) & 0xFF, \
14 (version >> 8) & 0xFF, \
18 * Virtual Service Flags
20 #define IP_VS_SVC_F_PERSISTENT 0x0001 /* persistent port */
21 #define IP_VS_SVC_F_HASHED 0x0002 /* hashed entry */
24 * Destination Server Flags
26 #define IP_VS_DEST_F_AVAILABLE 0x0001 /* server is available */
27 #define IP_VS_DEST_F_OVERLOAD 0x0002 /* server is overloaded */
30 * IPVS sync daemon states
32 #define IP_VS_STATE_NONE 0x0000 /* daemon is stopped */
33 #define IP_VS_STATE_MASTER 0x0001 /* started as master */
34 #define IP_VS_STATE_BACKUP 0x0002 /* started as backup */
39 #define IP_VS_BASE_CTL (64+1024+64) /* base */
41 #define IP_VS_SO_SET_NONE IP_VS_BASE_CTL /* just peek */
42 #define IP_VS_SO_SET_INSERT (IP_VS_BASE_CTL+1)
43 #define IP_VS_SO_SET_ADD (IP_VS_BASE_CTL+2)
44 #define IP_VS_SO_SET_EDIT (IP_VS_BASE_CTL+3)
45 #define IP_VS_SO_SET_DEL (IP_VS_BASE_CTL+4)
46 #define IP_VS_SO_SET_FLUSH (IP_VS_BASE_CTL+5)
47 #define IP_VS_SO_SET_LIST (IP_VS_BASE_CTL+6)
48 #define IP_VS_SO_SET_ADDDEST (IP_VS_BASE_CTL+7)
49 #define IP_VS_SO_SET_DELDEST (IP_VS_BASE_CTL+8)
50 #define IP_VS_SO_SET_EDITDEST (IP_VS_BASE_CTL+9)
51 #define IP_VS_SO_SET_TIMEOUT (IP_VS_BASE_CTL+10)
52 #define IP_VS_SO_SET_STARTDAEMON (IP_VS_BASE_CTL+11)
53 #define IP_VS_SO_SET_STOPDAEMON (IP_VS_BASE_CTL+12)
54 #define IP_VS_SO_SET_RESTORE (IP_VS_BASE_CTL+13)
55 #define IP_VS_SO_SET_SAVE (IP_VS_BASE_CTL+14)
56 #define IP_VS_SO_SET_ZERO (IP_VS_BASE_CTL+15)
57 #define IP_VS_SO_SET_MAX IP_VS_SO_SET_ZERO
59 #define IP_VS_SO_GET_VERSION IP_VS_BASE_CTL
60 #define IP_VS_SO_GET_INFO (IP_VS_BASE_CTL+1)
61 #define IP_VS_SO_GET_SERVICES (IP_VS_BASE_CTL+2)
62 #define IP_VS_SO_GET_SERVICE (IP_VS_BASE_CTL+3)
63 #define IP_VS_SO_GET_DESTS (IP_VS_BASE_CTL+4)
64 #define IP_VS_SO_GET_DEST (IP_VS_BASE_CTL+5) /* not used now */
65 #define IP_VS_SO_GET_TIMEOUT (IP_VS_BASE_CTL+6)
66 #define IP_VS_SO_GET_DAEMON (IP_VS_BASE_CTL+7)
67 #define IP_VS_SO_GET_MAX IP_VS_SO_GET_DAEMON
71 * IPVS Connection Flags
73 #define IP_VS_CONN_F_FWD_MASK 0x0007 /* mask for the fwd methods */
74 #define IP_VS_CONN_F_MASQ 0x0000 /* masquerading/NAT */
75 #define IP_VS_CONN_F_LOCALNODE 0x0001 /* local node */
76 #define IP_VS_CONN_F_TUNNEL 0x0002 /* tunneling */
77 #define IP_VS_CONN_F_DROUTE 0x0003 /* direct routing */
78 #define IP_VS_CONN_F_BYPASS 0x0004 /* cache bypass */
79 #define IP_VS_CONN_F_SYNC 0x0020 /* entry created by sync */
80 #define IP_VS_CONN_F_HASHED 0x0040 /* hashed entry */
81 #define IP_VS_CONN_F_NOOUTPUT 0x0080 /* no output packets */
82 #define IP_VS_CONN_F_INACTIVE 0x0100 /* not established */
83 #define IP_VS_CONN_F_OUT_SEQ 0x0200 /* must do output seq adjust */
84 #define IP_VS_CONN_F_IN_SEQ 0x0400 /* must do input seq adjust */
85 #define IP_VS_CONN_F_SEQ_MASK 0x0600 /* in/out sequence mask */
86 #define IP_VS_CONN_F_NO_CPORT 0x0800 /* no client port set yet */
87 #define IP_VS_CONN_F_TEMPLATE 0x1000 /* template, not connection */
89 #define IP_VS_SCHEDNAME_MAXLEN 16
90 #define IP_VS_IFNAME_MAXLEN 16
94 * The struct ip_vs_service_user and struct ip_vs_dest_user are
95 * used to set IPVS rules through setsockopt.
97 struct ip_vs_service_user
{
98 /* virtual service addresses */
100 __be32 addr
; /* virtual ip address */
102 u_int32_t fwmark
; /* firwall mark of service */
104 /* virtual service options */
105 char sched_name
[IP_VS_SCHEDNAME_MAXLEN
];
106 unsigned flags
; /* virtual service flags */
107 unsigned timeout
; /* persistent timeout in sec */
108 __be32 netmask
; /* persistent netmask */
112 struct ip_vs_dest_user
{
113 /* destination server address */
117 /* real server options */
118 unsigned conn_flags
; /* connection flags */
119 int weight
; /* destination weight */
121 /* thresholds for active connections */
122 u_int32_t u_threshold
; /* upper threshold */
123 u_int32_t l_threshold
; /* lower threshold */
128 * IPVS statistics object (for user space)
130 struct ip_vs_stats_user
132 __u32 conns
; /* connections scheduled */
133 __u32 inpkts
; /* incoming packets */
134 __u32 outpkts
; /* outgoing packets */
135 __u64 inbytes
; /* incoming bytes */
136 __u64 outbytes
; /* outgoing bytes */
138 __u32 cps
; /* current connection rate */
139 __u32 inpps
; /* current in packet rate */
140 __u32 outpps
; /* current out packet rate */
141 __u32 inbps
; /* current in byte rate */
142 __u32 outbps
; /* current out byte rate */
146 /* The argument to IP_VS_SO_GET_INFO */
147 struct ip_vs_getinfo
{
149 unsigned int version
;
151 /* size of connection hash table */
154 /* number of virtual services */
155 unsigned int num_services
;
159 /* The argument to IP_VS_SO_GET_SERVICE */
160 struct ip_vs_service_entry
{
161 /* which service: user fills in these */
163 __be32 addr
; /* virtual address */
165 u_int32_t fwmark
; /* firwall mark of service */
167 /* service options */
168 char sched_name
[IP_VS_SCHEDNAME_MAXLEN
];
169 unsigned flags
; /* virtual service flags */
170 unsigned timeout
; /* persistent timeout */
171 __be32 netmask
; /* persistent netmask */
173 /* number of real servers */
174 unsigned int num_dests
;
177 struct ip_vs_stats_user stats
;
181 struct ip_vs_dest_entry
{
182 __be32 addr
; /* destination address */
184 unsigned conn_flags
; /* connection flags */
185 int weight
; /* destination weight */
187 u_int32_t u_threshold
; /* upper threshold */
188 u_int32_t l_threshold
; /* lower threshold */
190 u_int32_t activeconns
; /* active connections */
191 u_int32_t inactconns
; /* inactive connections */
192 u_int32_t persistconns
; /* persistent connections */
195 struct ip_vs_stats_user stats
;
199 /* The argument to IP_VS_SO_GET_DESTS */
200 struct ip_vs_get_dests
{
201 /* which service: user fills in these */
203 __be32 addr
; /* virtual address */
205 u_int32_t fwmark
; /* firwall mark of service */
207 /* number of real servers */
208 unsigned int num_dests
;
210 /* the real servers */
211 struct ip_vs_dest_entry entrytable
[0];
215 /* The argument to IP_VS_SO_GET_SERVICES */
216 struct ip_vs_get_services
{
217 /* number of virtual services */
218 unsigned int num_services
;
221 struct ip_vs_service_entry entrytable
[0];
225 /* The argument to IP_VS_SO_GET_TIMEOUT */
226 struct ip_vs_timeout_user
{
233 /* The argument to IP_VS_SO_GET_DAEMON */
234 struct ip_vs_daemon_user
{
235 /* sync daemon state (master/backup) */
238 /* multicast interface name */
239 char mcast_ifn
[IP_VS_IFNAME_MAXLEN
];
241 /* SyncID we belong to */
245 #endif /* _IP_VS_H */