mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
474 lines
14 KiB
474 lines
14 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|
/* |
|
* IP Virtual Server |
|
* data structure and functionality definitions |
|
*/ |
|
|
|
#ifndef _IP_VS_H |
|
#define _IP_VS_H |
|
|
|
#include <linux/types.h> /* For __beXX types in userland */ |
|
|
|
#define IP_VS_VERSION_CODE 0x010201 |
|
#define NVERSION(version) \ |
|
(version >> 16) & 0xFF, \ |
|
(version >> 8) & 0xFF, \ |
|
version & 0xFF |
|
|
|
/* |
|
* Virtual Service Flags |
|
*/ |
|
#define IP_VS_SVC_F_PERSISTENT 0x0001 /* persistent port */ |
|
#define IP_VS_SVC_F_HASHED 0x0002 /* hashed entry */ |
|
#define IP_VS_SVC_F_ONEPACKET 0x0004 /* one-packet scheduling */ |
|
#define IP_VS_SVC_F_SCHED1 0x0008 /* scheduler flag 1 */ |
|
#define IP_VS_SVC_F_SCHED2 0x0010 /* scheduler flag 2 */ |
|
#define IP_VS_SVC_F_SCHED3 0x0020 /* scheduler flag 3 */ |
|
|
|
#define IP_VS_SVC_F_SCHED_SH_FALLBACK IP_VS_SVC_F_SCHED1 /* SH fallback */ |
|
#define IP_VS_SVC_F_SCHED_SH_PORT IP_VS_SVC_F_SCHED2 /* SH use port */ |
|
|
|
/* |
|
* Destination Server Flags |
|
*/ |
|
#define IP_VS_DEST_F_AVAILABLE 0x0001 /* server is available */ |
|
#define IP_VS_DEST_F_OVERLOAD 0x0002 /* server is overloaded */ |
|
|
|
/* |
|
* IPVS sync daemon states |
|
*/ |
|
#define IP_VS_STATE_NONE 0x0000 /* daemon is stopped */ |
|
#define IP_VS_STATE_MASTER 0x0001 /* started as master */ |
|
#define IP_VS_STATE_BACKUP 0x0002 /* started as backup */ |
|
|
|
/* |
|
* IPVS socket options |
|
*/ |
|
#define IP_VS_BASE_CTL (64+1024+64) /* base */ |
|
|
|
#define IP_VS_SO_SET_NONE IP_VS_BASE_CTL /* just peek */ |
|
#define IP_VS_SO_SET_INSERT (IP_VS_BASE_CTL+1) |
|
#define IP_VS_SO_SET_ADD (IP_VS_BASE_CTL+2) |
|
#define IP_VS_SO_SET_EDIT (IP_VS_BASE_CTL+3) |
|
#define IP_VS_SO_SET_DEL (IP_VS_BASE_CTL+4) |
|
#define IP_VS_SO_SET_FLUSH (IP_VS_BASE_CTL+5) |
|
#define IP_VS_SO_SET_LIST (IP_VS_BASE_CTL+6) |
|
#define IP_VS_SO_SET_ADDDEST (IP_VS_BASE_CTL+7) |
|
#define IP_VS_SO_SET_DELDEST (IP_VS_BASE_CTL+8) |
|
#define IP_VS_SO_SET_EDITDEST (IP_VS_BASE_CTL+9) |
|
#define IP_VS_SO_SET_TIMEOUT (IP_VS_BASE_CTL+10) |
|
#define IP_VS_SO_SET_STARTDAEMON (IP_VS_BASE_CTL+11) |
|
#define IP_VS_SO_SET_STOPDAEMON (IP_VS_BASE_CTL+12) |
|
#define IP_VS_SO_SET_RESTORE (IP_VS_BASE_CTL+13) |
|
#define IP_VS_SO_SET_SAVE (IP_VS_BASE_CTL+14) |
|
#define IP_VS_SO_SET_ZERO (IP_VS_BASE_CTL+15) |
|
#define IP_VS_SO_SET_MAX IP_VS_SO_SET_ZERO |
|
|
|
#define IP_VS_SO_GET_VERSION IP_VS_BASE_CTL |
|
#define IP_VS_SO_GET_INFO (IP_VS_BASE_CTL+1) |
|
#define IP_VS_SO_GET_SERVICES (IP_VS_BASE_CTL+2) |
|
#define IP_VS_SO_GET_SERVICE (IP_VS_BASE_CTL+3) |
|
#define IP_VS_SO_GET_DESTS (IP_VS_BASE_CTL+4) |
|
#define IP_VS_SO_GET_DEST (IP_VS_BASE_CTL+5) /* not used now */ |
|
#define IP_VS_SO_GET_TIMEOUT (IP_VS_BASE_CTL+6) |
|
#define IP_VS_SO_GET_DAEMON (IP_VS_BASE_CTL+7) |
|
#define IP_VS_SO_GET_MAX IP_VS_SO_GET_DAEMON |
|
|
|
|
|
/* |
|
* IPVS Connection Flags |
|
* Only flags 0..15 are sent to backup server |
|
*/ |
|
#define IP_VS_CONN_F_FWD_MASK 0x0007 /* mask for the fwd methods */ |
|
#define IP_VS_CONN_F_MASQ 0x0000 /* masquerading/NAT */ |
|
#define IP_VS_CONN_F_LOCALNODE 0x0001 /* local node */ |
|
#define IP_VS_CONN_F_TUNNEL 0x0002 /* tunneling */ |
|
#define IP_VS_CONN_F_DROUTE 0x0003 /* direct routing */ |
|
#define IP_VS_CONN_F_BYPASS 0x0004 /* cache bypass */ |
|
#define IP_VS_CONN_F_SYNC 0x0020 /* entry created by sync */ |
|
#define IP_VS_CONN_F_HASHED 0x0040 /* hashed entry */ |
|
#define IP_VS_CONN_F_NOOUTPUT 0x0080 /* no output packets */ |
|
#define IP_VS_CONN_F_INACTIVE 0x0100 /* not established */ |
|
#define IP_VS_CONN_F_OUT_SEQ 0x0200 /* must do output seq adjust */ |
|
#define IP_VS_CONN_F_IN_SEQ 0x0400 /* must do input seq adjust */ |
|
#define IP_VS_CONN_F_SEQ_MASK 0x0600 /* in/out sequence mask */ |
|
#define IP_VS_CONN_F_NO_CPORT 0x0800 /* no client port set yet */ |
|
#define IP_VS_CONN_F_TEMPLATE 0x1000 /* template, not connection */ |
|
#define IP_VS_CONN_F_ONE_PACKET 0x2000 /* forward only one packet */ |
|
|
|
/* Initial bits allowed in backup server */ |
|
#define IP_VS_CONN_F_BACKUP_MASK (IP_VS_CONN_F_FWD_MASK | \ |
|
IP_VS_CONN_F_NOOUTPUT | \ |
|
IP_VS_CONN_F_INACTIVE | \ |
|
IP_VS_CONN_F_SEQ_MASK | \ |
|
IP_VS_CONN_F_NO_CPORT | \ |
|
IP_VS_CONN_F_TEMPLATE \ |
|
) |
|
|
|
/* Bits allowed to update in backup server */ |
|
#define IP_VS_CONN_F_BACKUP_UPD_MASK (IP_VS_CONN_F_INACTIVE | \ |
|
IP_VS_CONN_F_SEQ_MASK) |
|
|
|
/* Flags that are not sent to backup server start from bit 16 */ |
|
#define IP_VS_CONN_F_NFCT (1 << 16) /* use netfilter conntrack */ |
|
|
|
/* Connection flags from destination that can be changed by user space */ |
|
#define IP_VS_CONN_F_DEST_MASK (IP_VS_CONN_F_FWD_MASK | \ |
|
IP_VS_CONN_F_ONE_PACKET | \ |
|
IP_VS_CONN_F_NFCT | \ |
|
0) |
|
|
|
#define IP_VS_SCHEDNAME_MAXLEN 16 |
|
#define IP_VS_PENAME_MAXLEN 16 |
|
#define IP_VS_IFNAME_MAXLEN 16 |
|
|
|
#define IP_VS_PEDATA_MAXLEN 255 |
|
|
|
/* Tunnel types */ |
|
enum { |
|
IP_VS_CONN_F_TUNNEL_TYPE_IPIP = 0, /* IPIP */ |
|
IP_VS_CONN_F_TUNNEL_TYPE_GUE, /* GUE */ |
|
IP_VS_CONN_F_TUNNEL_TYPE_GRE, /* GRE */ |
|
IP_VS_CONN_F_TUNNEL_TYPE_MAX, |
|
}; |
|
|
|
/* Tunnel encapsulation flags */ |
|
#define IP_VS_TUNNEL_ENCAP_FLAG_NOCSUM (0) |
|
#define IP_VS_TUNNEL_ENCAP_FLAG_CSUM (1 << 0) |
|
#define IP_VS_TUNNEL_ENCAP_FLAG_REMCSUM (1 << 1) |
|
|
|
/* |
|
* The struct ip_vs_service_user and struct ip_vs_dest_user are |
|
* used to set IPVS rules through setsockopt. |
|
*/ |
|
struct ip_vs_service_user { |
|
/* virtual service addresses */ |
|
__u16 protocol; |
|
__be32 addr; /* virtual ip address */ |
|
__be16 port; |
|
__u32 fwmark; /* firwall mark of service */ |
|
|
|
/* virtual service options */ |
|
char sched_name[IP_VS_SCHEDNAME_MAXLEN]; |
|
unsigned int flags; /* virtual service flags */ |
|
unsigned int timeout; /* persistent timeout in sec */ |
|
__be32 netmask; /* persistent netmask */ |
|
}; |
|
|
|
|
|
struct ip_vs_dest_user { |
|
/* destination server address */ |
|
__be32 addr; |
|
__be16 port; |
|
|
|
/* real server options */ |
|
unsigned int conn_flags; /* connection flags */ |
|
int weight; /* destination weight */ |
|
|
|
/* thresholds for active connections */ |
|
__u32 u_threshold; /* upper threshold */ |
|
__u32 l_threshold; /* lower threshold */ |
|
}; |
|
|
|
|
|
/* |
|
* IPVS statistics object (for user space) |
|
*/ |
|
struct ip_vs_stats_user { |
|
__u32 conns; /* connections scheduled */ |
|
__u32 inpkts; /* incoming packets */ |
|
__u32 outpkts; /* outgoing packets */ |
|
__u64 inbytes; /* incoming bytes */ |
|
__u64 outbytes; /* outgoing bytes */ |
|
|
|
__u32 cps; /* current connection rate */ |
|
__u32 inpps; /* current in packet rate */ |
|
__u32 outpps; /* current out packet rate */ |
|
__u32 inbps; /* current in byte rate */ |
|
__u32 outbps; /* current out byte rate */ |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_INFO */ |
|
struct ip_vs_getinfo { |
|
/* version number */ |
|
unsigned int version; |
|
|
|
/* size of connection hash table */ |
|
unsigned int size; |
|
|
|
/* number of virtual services */ |
|
unsigned int num_services; |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_SERVICE */ |
|
struct ip_vs_service_entry { |
|
/* which service: user fills in these */ |
|
__u16 protocol; |
|
__be32 addr; /* virtual address */ |
|
__be16 port; |
|
__u32 fwmark; /* firwall mark of service */ |
|
|
|
/* service options */ |
|
char sched_name[IP_VS_SCHEDNAME_MAXLEN]; |
|
unsigned int flags; /* virtual service flags */ |
|
unsigned int timeout; /* persistent timeout */ |
|
__be32 netmask; /* persistent netmask */ |
|
|
|
/* number of real servers */ |
|
unsigned int num_dests; |
|
|
|
/* statistics */ |
|
struct ip_vs_stats_user stats; |
|
}; |
|
|
|
|
|
struct ip_vs_dest_entry { |
|
__be32 addr; /* destination address */ |
|
__be16 port; |
|
unsigned int conn_flags; /* connection flags */ |
|
int weight; /* destination weight */ |
|
|
|
__u32 u_threshold; /* upper threshold */ |
|
__u32 l_threshold; /* lower threshold */ |
|
|
|
__u32 activeconns; /* active connections */ |
|
__u32 inactconns; /* inactive connections */ |
|
__u32 persistconns; /* persistent connections */ |
|
|
|
/* statistics */ |
|
struct ip_vs_stats_user stats; |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_DESTS */ |
|
struct ip_vs_get_dests { |
|
/* which service: user fills in these */ |
|
__u16 protocol; |
|
__be32 addr; /* virtual address */ |
|
__be16 port; |
|
__u32 fwmark; /* firwall mark of service */ |
|
|
|
/* number of real servers */ |
|
unsigned int num_dests; |
|
|
|
/* the real servers */ |
|
struct ip_vs_dest_entry entrytable[0]; |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_SERVICES */ |
|
struct ip_vs_get_services { |
|
/* number of virtual services */ |
|
unsigned int num_services; |
|
|
|
/* service table */ |
|
struct ip_vs_service_entry entrytable[0]; |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_TIMEOUT */ |
|
struct ip_vs_timeout_user { |
|
int tcp_timeout; |
|
int tcp_fin_timeout; |
|
int udp_timeout; |
|
}; |
|
|
|
|
|
/* The argument to IP_VS_SO_GET_DAEMON */ |
|
struct ip_vs_daemon_user { |
|
/* sync daemon state (master/backup) */ |
|
int state; |
|
|
|
/* multicast interface name */ |
|
char mcast_ifn[IP_VS_IFNAME_MAXLEN]; |
|
|
|
/* SyncID we belong to */ |
|
int syncid; |
|
}; |
|
|
|
/* |
|
* |
|
* IPVS Generic Netlink interface definitions |
|
* |
|
*/ |
|
|
|
/* Generic Netlink family info */ |
|
|
|
#define IPVS_GENL_NAME "IPVS" |
|
#define IPVS_GENL_VERSION 0x1 |
|
|
|
struct ip_vs_flags { |
|
__u32 flags; |
|
__u32 mask; |
|
}; |
|
|
|
/* Generic Netlink command attributes */ |
|
enum { |
|
IPVS_CMD_UNSPEC = 0, |
|
|
|
IPVS_CMD_NEW_SERVICE, /* add service */ |
|
IPVS_CMD_SET_SERVICE, /* modify service */ |
|
IPVS_CMD_DEL_SERVICE, /* delete service */ |
|
IPVS_CMD_GET_SERVICE, /* get service info */ |
|
|
|
IPVS_CMD_NEW_DEST, /* add destination */ |
|
IPVS_CMD_SET_DEST, /* modify destination */ |
|
IPVS_CMD_DEL_DEST, /* delete destination */ |
|
IPVS_CMD_GET_DEST, /* get destination info */ |
|
|
|
IPVS_CMD_NEW_DAEMON, /* start sync daemon */ |
|
IPVS_CMD_DEL_DAEMON, /* stop sync daemon */ |
|
IPVS_CMD_GET_DAEMON, /* get sync daemon status */ |
|
|
|
IPVS_CMD_SET_CONFIG, /* set config settings */ |
|
IPVS_CMD_GET_CONFIG, /* get config settings */ |
|
|
|
IPVS_CMD_SET_INFO, /* only used in GET_INFO reply */ |
|
IPVS_CMD_GET_INFO, /* get general IPVS info */ |
|
|
|
IPVS_CMD_ZERO, /* zero all counters and stats */ |
|
IPVS_CMD_FLUSH, /* flush services and dests */ |
|
|
|
__IPVS_CMD_MAX, |
|
}; |
|
|
|
#define IPVS_CMD_MAX (__IPVS_CMD_MAX - 1) |
|
|
|
/* Attributes used in the first level of commands */ |
|
enum { |
|
IPVS_CMD_ATTR_UNSPEC = 0, |
|
IPVS_CMD_ATTR_SERVICE, /* nested service attribute */ |
|
IPVS_CMD_ATTR_DEST, /* nested destination attribute */ |
|
IPVS_CMD_ATTR_DAEMON, /* nested sync daemon attribute */ |
|
IPVS_CMD_ATTR_TIMEOUT_TCP, /* TCP connection timeout */ |
|
IPVS_CMD_ATTR_TIMEOUT_TCP_FIN, /* TCP FIN wait timeout */ |
|
IPVS_CMD_ATTR_TIMEOUT_UDP, /* UDP timeout */ |
|
__IPVS_CMD_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_CMD_ATTR_MAX (__IPVS_CMD_ATTR_MAX - 1) |
|
|
|
/* |
|
* Attributes used to describe a service |
|
* |
|
* Used inside nested attribute IPVS_CMD_ATTR_SERVICE |
|
*/ |
|
enum { |
|
IPVS_SVC_ATTR_UNSPEC = 0, |
|
IPVS_SVC_ATTR_AF, /* address family */ |
|
IPVS_SVC_ATTR_PROTOCOL, /* virtual service protocol */ |
|
IPVS_SVC_ATTR_ADDR, /* virtual service address */ |
|
IPVS_SVC_ATTR_PORT, /* virtual service port */ |
|
IPVS_SVC_ATTR_FWMARK, /* firewall mark of service */ |
|
|
|
IPVS_SVC_ATTR_SCHED_NAME, /* name of scheduler */ |
|
IPVS_SVC_ATTR_FLAGS, /* virtual service flags */ |
|
IPVS_SVC_ATTR_TIMEOUT, /* persistent timeout */ |
|
IPVS_SVC_ATTR_NETMASK, /* persistent netmask */ |
|
|
|
IPVS_SVC_ATTR_STATS, /* nested attribute for service stats */ |
|
|
|
IPVS_SVC_ATTR_PE_NAME, /* name of ct retriever */ |
|
|
|
IPVS_SVC_ATTR_STATS64, /* nested attribute for service stats */ |
|
|
|
__IPVS_SVC_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_SVC_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1) |
|
|
|
/* |
|
* Attributes used to describe a destination (real server) |
|
* |
|
* Used inside nested attribute IPVS_CMD_ATTR_DEST |
|
*/ |
|
enum { |
|
IPVS_DEST_ATTR_UNSPEC = 0, |
|
IPVS_DEST_ATTR_ADDR, /* real server address */ |
|
IPVS_DEST_ATTR_PORT, /* real server port */ |
|
|
|
IPVS_DEST_ATTR_FWD_METHOD, /* forwarding method */ |
|
IPVS_DEST_ATTR_WEIGHT, /* destination weight */ |
|
|
|
IPVS_DEST_ATTR_U_THRESH, /* upper threshold */ |
|
IPVS_DEST_ATTR_L_THRESH, /* lower threshold */ |
|
|
|
IPVS_DEST_ATTR_ACTIVE_CONNS, /* active connections */ |
|
IPVS_DEST_ATTR_INACT_CONNS, /* inactive connections */ |
|
IPVS_DEST_ATTR_PERSIST_CONNS, /* persistent connections */ |
|
|
|
IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */ |
|
|
|
IPVS_DEST_ATTR_ADDR_FAMILY, /* Address family of address */ |
|
|
|
IPVS_DEST_ATTR_STATS64, /* nested attribute for dest stats */ |
|
|
|
IPVS_DEST_ATTR_TUN_TYPE, /* tunnel type */ |
|
|
|
IPVS_DEST_ATTR_TUN_PORT, /* tunnel port */ |
|
|
|
IPVS_DEST_ATTR_TUN_FLAGS, /* tunnel flags */ |
|
|
|
__IPVS_DEST_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_DEST_ATTR_MAX (__IPVS_DEST_ATTR_MAX - 1) |
|
|
|
/* |
|
* Attributes describing a sync daemon |
|
* |
|
* Used inside nested attribute IPVS_CMD_ATTR_DAEMON |
|
*/ |
|
enum { |
|
IPVS_DAEMON_ATTR_UNSPEC = 0, |
|
IPVS_DAEMON_ATTR_STATE, /* sync daemon state (master/backup) */ |
|
IPVS_DAEMON_ATTR_MCAST_IFN, /* multicast interface name */ |
|
IPVS_DAEMON_ATTR_SYNC_ID, /* SyncID we belong to */ |
|
IPVS_DAEMON_ATTR_SYNC_MAXLEN, /* UDP Payload Size */ |
|
IPVS_DAEMON_ATTR_MCAST_GROUP, /* IPv4 Multicast Address */ |
|
IPVS_DAEMON_ATTR_MCAST_GROUP6, /* IPv6 Multicast Address */ |
|
IPVS_DAEMON_ATTR_MCAST_PORT, /* Multicast Port (base) */ |
|
IPVS_DAEMON_ATTR_MCAST_TTL, /* Multicast TTL */ |
|
__IPVS_DAEMON_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_DAEMON_ATTR_MAX (__IPVS_DAEMON_ATTR_MAX - 1) |
|
|
|
/* |
|
* Attributes used to describe service or destination entry statistics |
|
* |
|
* Used inside nested attributes IPVS_SVC_ATTR_STATS, IPVS_DEST_ATTR_STATS, |
|
* IPVS_SVC_ATTR_STATS64 and IPVS_DEST_ATTR_STATS64. |
|
*/ |
|
enum { |
|
IPVS_STATS_ATTR_UNSPEC = 0, |
|
IPVS_STATS_ATTR_CONNS, /* connections scheduled */ |
|
IPVS_STATS_ATTR_INPKTS, /* incoming packets */ |
|
IPVS_STATS_ATTR_OUTPKTS, /* outgoing packets */ |
|
IPVS_STATS_ATTR_INBYTES, /* incoming bytes */ |
|
IPVS_STATS_ATTR_OUTBYTES, /* outgoing bytes */ |
|
|
|
IPVS_STATS_ATTR_CPS, /* current connection rate */ |
|
IPVS_STATS_ATTR_INPPS, /* current in packet rate */ |
|
IPVS_STATS_ATTR_OUTPPS, /* current out packet rate */ |
|
IPVS_STATS_ATTR_INBPS, /* current in byte rate */ |
|
IPVS_STATS_ATTR_OUTBPS, /* current out byte rate */ |
|
IPVS_STATS_ATTR_PAD, |
|
__IPVS_STATS_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_STATS_ATTR_MAX (__IPVS_STATS_ATTR_MAX - 1) |
|
|
|
/* Attributes used in response to IPVS_CMD_GET_INFO command */ |
|
enum { |
|
IPVS_INFO_ATTR_UNSPEC = 0, |
|
IPVS_INFO_ATTR_VERSION, /* IPVS version number */ |
|
IPVS_INFO_ATTR_CONN_TAB_SIZE, /* size of connection hash table */ |
|
__IPVS_INFO_ATTR_MAX, |
|
}; |
|
|
|
#define IPVS_INFO_ATTR_MAX (__IPVS_INFO_ATTR_MAX - 1) |
|
|
|
#endif /* _IP_VS_H */
|
|
|