3 * Data structure for network namspace
10 #include <linux/list.h>
11 #include <linux/mutex.h>
12 #include <linux/list_nulls.h>
13 #include <linux/ip_vs.h>
14 #include <asm/atomic.h>
18 struct ip_vs_sync_buff
;
19 struct ctl_table_header
;
22 int gen
; /* Generation */
24 * Hash table: for real service lookups
26 #define IP_VS_RTAB_BITS 4
27 #define IP_VS_RTAB_SIZE (1 << IP_VS_RTAB_BITS)
28 #define IP_VS_RTAB_MASK (IP_VS_RTAB_SIZE - 1)
30 struct list_head rs_table
[IP_VS_RTAB_SIZE
];
32 struct list_head app_list
;
33 struct mutex app_mutex
;
34 struct lock_class_key app_key
; /* mutex debuging */
37 #define IP_VS_PROTO_TAB_SIZE 32 /* must be power of 2 */
38 struct ip_vs_proto_data
*proto_data_table
[IP_VS_PROTO_TAB_SIZE
];
40 #ifdef CONFIG_IP_VS_PROTO_TCP
41 #define TCP_APP_TAB_BITS 4
42 #define TCP_APP_TAB_SIZE (1 << TCP_APP_TAB_BITS)
43 #define TCP_APP_TAB_MASK (TCP_APP_TAB_SIZE - 1)
44 struct list_head tcp_apps
[TCP_APP_TAB_SIZE
];
45 spinlock_t tcp_app_lock
;
48 #ifdef CONFIG_IP_VS_PROTO_UDP
49 #define UDP_APP_TAB_BITS 4
50 #define UDP_APP_TAB_SIZE (1 << UDP_APP_TAB_BITS)
51 #define UDP_APP_TAB_MASK (UDP_APP_TAB_SIZE - 1)
52 struct list_head udp_apps
[UDP_APP_TAB_SIZE
];
53 spinlock_t udp_app_lock
;
55 /* ip_vs_proto_sctp */
56 #ifdef CONFIG_IP_VS_PROTO_SCTP
57 #define SCTP_APP_TAB_BITS 4
58 #define SCTP_APP_TAB_SIZE (1 << SCTP_APP_TAB_BITS)
59 #define SCTP_APP_TAB_MASK (SCTP_APP_TAB_SIZE - 1)
60 /* Hash table for SCTP application incarnations */
61 struct list_head sctp_apps
[SCTP_APP_TAB_SIZE
];
62 spinlock_t sctp_app_lock
;
65 atomic_t conn_count
; /* connection counter */
68 struct ip_vs_stats
*tot_stats
; /* Statistics & est. */
69 struct ip_vs_cpu_stats __percpu
*cpustats
; /* Stats per cpu */
70 seqcount_t
*ustats_seq
; /* u64 read retry */
72 int num_services
; /* no of virtual services */
73 /* 1/rate drop and drop-entry variables */
78 spinlock_t dropentry_lock
; /* drop entry handling */
79 spinlock_t droppacket_lock
; /* drop packet handling */
80 spinlock_t securetcp_lock
; /* state and timeout tables */
81 rwlock_t rs_lock
; /* real services table */
82 /* semaphore for IPVS sockopts. And, [gs]etsockopt may sleep. */
83 struct lock_class_key ctl_key
; /* ctl_mutex debuging */
85 struct ctl_table_header
*sysctl_hdr
;
86 struct ctl_table
*sysctl_tbl
;
87 /* sysctl variables */
88 int sysctl_amemthresh
;
89 int sysctl_am_droprate
;
90 int sysctl_drop_entry
;
91 int sysctl_drop_packet
;
92 int sysctl_secure_tcp
;
93 #ifdef CONFIG_IP_VS_NFCT
96 int sysctl_snat_reroute
;
98 int sysctl_cache_bypass
;
99 int sysctl_expire_nodest_conn
;
100 int sysctl_expire_quiescent_template
;
101 int sysctl_sync_threshold
[2];
102 int sysctl_nat_icmp_send
;
105 int sysctl_lblc_expiration
;
106 struct ctl_table_header
*lblc_ctl_header
;
107 struct ctl_table
*lblc_ctl_table
;
109 int sysctl_lblcr_expiration
;
110 struct ctl_table_header
*lblcr_ctl_header
;
111 struct ctl_table
*lblcr_ctl_table
;
113 struct list_head est_list
; /* estimator list */
115 struct timer_list est_timer
; /* Estimation timer */
117 struct list_head sync_queue
;
118 spinlock_t sync_lock
;
119 struct ip_vs_sync_buff
*sync_buff
;
120 spinlock_t sync_buff_lock
;
121 struct sockaddr_in sync_mcast_addr
;
122 struct task_struct
*master_thread
;
123 struct task_struct
*backup_thread
;
124 int send_mesg_maxlen
;
125 int recv_mesg_maxlen
;
126 volatile int sync_state
;
127 volatile int master_syncid
;
128 volatile int backup_syncid
;
129 /* multicast interface name */
130 char master_mcast_ifn
[IP_VS_IFNAME_MAXLEN
];
131 char backup_mcast_ifn
[IP_VS_IFNAME_MAXLEN
];
134 #endif /* IP_VS_H_ */