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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
commit4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch)
treebc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/net/ip_vs.h
parent21adb5284111190057db245cfc2b54091920c373 (diff)
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/net/ip_vs.h')
-rw-r--r--libdde_linux26/contrib/include/net/ip_vs.h939
1 files changed, 0 insertions, 939 deletions
diff --git a/libdde_linux26/contrib/include/net/ip_vs.h b/libdde_linux26/contrib/include/net/ip_vs.h
deleted file mode 100644
index ab9b003a..00000000
--- a/libdde_linux26/contrib/include/net/ip_vs.h
+++ /dev/null
@@ -1,939 +0,0 @@
-/*
- * IP Virtual Server
- * data structure and functionality definitions
- */
-
-#ifndef _NET_IP_VS_H
-#define _NET_IP_VS_H
-
-#include <linux/ip_vs.h> /* definitions shared with userland */
-
-/* old ipvsadm versions still include this file directly */
-#ifdef __KERNEL__
-
-#include <asm/types.h> /* for __uXX types */
-
-#include <linux/sysctl.h> /* for ctl_path */
-#include <linux/list.h> /* for struct list_head */
-#include <linux/spinlock.h> /* for struct rwlock_t */
-#include <asm/atomic.h> /* for struct atomic_t */
-#include <linux/compiler.h>
-#include <linux/timer.h>
-
-#include <net/checksum.h>
-#include <linux/netfilter.h> /* for union nf_inet_addr */
-#include <linux/ip.h>
-#include <linux/ipv6.h> /* for struct ipv6hdr */
-#include <net/ipv6.h> /* for ipv6_addr_copy */
-
-struct ip_vs_iphdr {
- int len;
- __u8 protocol;
- union nf_inet_addr saddr;
- union nf_inet_addr daddr;
-};
-
-static inline void
-ip_vs_fill_iphdr(int af, const void *nh, struct ip_vs_iphdr *iphdr)
-{
-#ifdef CONFIG_IP_VS_IPV6
- if (af == AF_INET6) {
- const struct ipv6hdr *iph = nh;
- iphdr->len = sizeof(struct ipv6hdr);
- iphdr->protocol = iph->nexthdr;
- ipv6_addr_copy(&iphdr->saddr.in6, &iph->saddr);
- ipv6_addr_copy(&iphdr->daddr.in6, &iph->daddr);
- } else
-#endif
- {
- const struct iphdr *iph = nh;
- iphdr->len = iph->ihl * 4;
- iphdr->protocol = iph->protocol;
- iphdr->saddr.ip = iph->saddr;
- iphdr->daddr.ip = iph->daddr;
- }
-}
-
-static inline void ip_vs_addr_copy(int af, union nf_inet_addr *dst,
- const union nf_inet_addr *src)
-{
-#ifdef CONFIG_IP_VS_IPV6
- if (af == AF_INET6)
- ipv6_addr_copy(&dst->in6, &src->in6);
- else
-#endif
- dst->ip = src->ip;
-}
-
-static inline int ip_vs_addr_equal(int af, const union nf_inet_addr *a,
- const union nf_inet_addr *b)
-{
-#ifdef CONFIG_IP_VS_IPV6
- if (af == AF_INET6)
- return ipv6_addr_equal(&a->in6, &b->in6);
-#endif
- return a->ip == b->ip;
-}
-
-#ifdef CONFIG_IP_VS_DEBUG
-#include <linux/net.h>
-
-extern int ip_vs_get_debug_level(void);
-
-static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len,
- const union nf_inet_addr *addr,
- int *idx)
-{
- int len;
-#ifdef CONFIG_IP_VS_IPV6
- if (af == AF_INET6)
- len = snprintf(&buf[*idx], buf_len - *idx, "[%pI6]",
- &addr->in6) + 1;
- else
-#endif
- len = snprintf(&buf[*idx], buf_len - *idx, "%pI4",
- &addr->ip) + 1;
-
- *idx += len;
- BUG_ON(*idx > buf_len + 1);
- return &buf[*idx - len];
-}
-
-#define IP_VS_DBG_BUF(level, msg...) \
- do { \
- char ip_vs_dbg_buf[160]; \
- int ip_vs_dbg_idx = 0; \
- if (level <= ip_vs_get_debug_level()) \
- printk(KERN_DEBUG "IPVS: " msg); \
- } while (0)
-#define IP_VS_ERR_BUF(msg...) \
- do { \
- char ip_vs_dbg_buf[160]; \
- int ip_vs_dbg_idx = 0; \
- printk(KERN_ERR "IPVS: " msg); \
- } while (0)
-
-/* Only use from within IP_VS_DBG_BUF() or IP_VS_ERR_BUF macros */
-#define IP_VS_DBG_ADDR(af, addr) \
- ip_vs_dbg_addr(af, ip_vs_dbg_buf, \
- sizeof(ip_vs_dbg_buf), addr, \
- &ip_vs_dbg_idx)
-
-#define IP_VS_DBG(level, msg...) \
- do { \
- if (level <= ip_vs_get_debug_level()) \
- printk(KERN_DEBUG "IPVS: " msg); \
- } while (0)
-#define IP_VS_DBG_RL(msg...) \
- do { \
- if (net_ratelimit()) \
- printk(KERN_DEBUG "IPVS: " msg); \
- } while (0)
-#define IP_VS_DBG_PKT(level, pp, skb, ofs, msg) \
- do { \
- if (level <= ip_vs_get_debug_level()) \
- pp->debug_packet(pp, skb, ofs, msg); \
- } while (0)
-#define IP_VS_DBG_RL_PKT(level, pp, skb, ofs, msg) \
- do { \
- if (level <= ip_vs_get_debug_level() && \
- net_ratelimit()) \
- pp->debug_packet(pp, skb, ofs, msg); \
- } while (0)
-#else /* NO DEBUGGING at ALL */
-#define IP_VS_DBG_BUF(level, msg...) do {} while (0)
-#define IP_VS_ERR_BUF(msg...) do {} while (0)
-#define IP_VS_DBG(level, msg...) do {} while (0)
-#define IP_VS_DBG_RL(msg...) do {} while (0)
-#define IP_VS_DBG_PKT(level, pp, skb, ofs, msg) do {} while (0)
-#define IP_VS_DBG_RL_PKT(level, pp, skb, ofs, msg) do {} while (0)
-#endif
-
-#define IP_VS_BUG() BUG()
-#define IP_VS_ERR(msg...) printk(KERN_ERR "IPVS: " msg)
-#define IP_VS_INFO(msg...) printk(KERN_INFO "IPVS: " msg)
-#define IP_VS_WARNING(msg...) \
- printk(KERN_WARNING "IPVS: " msg)
-#define IP_VS_ERR_RL(msg...) \
- do { \
- if (net_ratelimit()) \
- printk(KERN_ERR "IPVS: " msg); \
- } while (0)
-
-#ifdef CONFIG_IP_VS_DEBUG
-#define EnterFunction(level) \
- do { \
- if (level <= ip_vs_get_debug_level()) \
- printk(KERN_DEBUG "Enter: %s, %s line %i\n", \
- __func__, __FILE__, __LINE__); \
- } while (0)
-#define LeaveFunction(level) \
- do { \
- if (level <= ip_vs_get_debug_level()) \
- printk(KERN_DEBUG "Leave: %s, %s line %i\n", \
- __func__, __FILE__, __LINE__); \
- } while (0)
-#else
-#define EnterFunction(level) do {} while (0)
-#define LeaveFunction(level) do {} while (0)
-#endif
-
-#define IP_VS_WAIT_WHILE(expr) while (expr) { cpu_relax(); }
-
-
-/*
- * The port number of FTP service (in network order).
- */
-#define FTPPORT __constant_htons(21)
-#define FTPDATA __constant_htons(20)
-
-/*
- * TCP State Values
- */
-enum {
- IP_VS_TCP_S_NONE = 0,
- IP_VS_TCP_S_ESTABLISHED,
- IP_VS_TCP_S_SYN_SENT,
- IP_VS_TCP_S_SYN_RECV,
- IP_VS_TCP_S_FIN_WAIT,
- IP_VS_TCP_S_TIME_WAIT,
- IP_VS_TCP_S_CLOSE,
- IP_VS_TCP_S_CLOSE_WAIT,
- IP_VS_TCP_S_LAST_ACK,
- IP_VS_TCP_S_LISTEN,
- IP_VS_TCP_S_SYNACK,
- IP_VS_TCP_S_LAST
-};
-
-/*
- * UDP State Values
- */
-enum {
- IP_VS_UDP_S_NORMAL,
- IP_VS_UDP_S_LAST,
-};
-
-/*
- * ICMP State Values
- */
-enum {
- IP_VS_ICMP_S_NORMAL,
- IP_VS_ICMP_S_LAST,
-};
-
-/*
- * Delta sequence info structure
- * Each ip_vs_conn has 2 (output AND input seq. changes).
- * Only used in the VS/NAT.
- */
-struct ip_vs_seq {
- __u32 init_seq; /* Add delta from this seq */
- __u32 delta; /* Delta in sequence numbers */
- __u32 previous_delta; /* Delta in sequence numbers
- before last resized pkt */
-};
-
-
-/*
- * IPVS statistics objects
- */
-struct ip_vs_estimator {
- struct list_head list;
-
- u64 last_inbytes;
- u64 last_outbytes;
- u32 last_conns;
- u32 last_inpkts;
- u32 last_outpkts;
-
- u32 cps;
- u32 inpps;
- u32 outpps;
- u32 inbps;
- u32 outbps;
-};
-
-struct ip_vs_stats
-{
- struct ip_vs_stats_user ustats; /* statistics */
- struct ip_vs_estimator est; /* estimator */
-
- spinlock_t lock; /* spin lock */
-};
-
-struct dst_entry;
-struct iphdr;
-struct ip_vs_conn;
-struct ip_vs_app;
-struct sk_buff;
-
-struct ip_vs_protocol {
- struct ip_vs_protocol *next;
- char *name;
- u16 protocol;
- u16 num_states;
- int dont_defrag;
- atomic_t appcnt; /* counter of proto app incs */
- int *timeout_table; /* protocol timeout table */
-
- void (*init)(struct ip_vs_protocol *pp);
-
- void (*exit)(struct ip_vs_protocol *pp);
-
- int (*conn_schedule)(int af, struct sk_buff *skb,
- struct ip_vs_protocol *pp,
- int *verdict, struct ip_vs_conn **cpp);
-
- struct ip_vs_conn *
- (*conn_in_get)(int af,
- const struct sk_buff *skb,
- struct ip_vs_protocol *pp,
- const struct ip_vs_iphdr *iph,
- unsigned int proto_off,
- int inverse);
-
- struct ip_vs_conn *
- (*conn_out_get)(int af,
- const struct sk_buff *skb,
- struct ip_vs_protocol *pp,
- const struct ip_vs_iphdr *iph,
- unsigned int proto_off,
- int inverse);
-
- int (*snat_handler)(struct sk_buff *skb,
- struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
-
- int (*dnat_handler)(struct sk_buff *skb,
- struct ip_vs_protocol *pp, struct ip_vs_conn *cp);
-
- int (*csum_check)(int af, struct sk_buff *skb,
- struct ip_vs_protocol *pp);
-
- const char *(*state_name)(int state);
-
- int (*state_transition)(struct ip_vs_conn *cp, int direction,
- const struct sk_buff *skb,
- struct ip_vs_protocol *pp);
-
- int (*register_app)(struct ip_vs_app *inc);
-
- void (*unregister_app)(struct ip_vs_app *inc);
-
- int (*app_conn_bind)(struct ip_vs_conn *cp);
-
- void (*debug_packet)(struct ip_vs_protocol *pp,
- const struct sk_buff *skb,
- int offset,
- const char *msg);
-
- void (*timeout_change)(struct ip_vs_protocol *pp, int flags);
-
- int (*set_state_timeout)(struct ip_vs_protocol *pp, char *sname, int to);
-};
-
-extern struct ip_vs_protocol * ip_vs_proto_get(unsigned short proto);
-
-/*
- * IP_VS structure allocated for each dynamically scheduled connection
- */
-struct ip_vs_conn {
- struct list_head c_list; /* hashed list heads */
-
- /* Protocol, addresses and port numbers */
- u16 af; /* address family */
- union nf_inet_addr caddr; /* client address */
- union nf_inet_addr vaddr; /* virtual address */
- union nf_inet_addr daddr; /* destination address */
- __be16 cport;
- __be16 vport;
- __be16 dport;
- __u16 protocol; /* Which protocol (TCP/UDP) */
-
- /* counter and timer */
- atomic_t refcnt; /* reference count */
- struct timer_list timer; /* Expiration timer */
- volatile unsigned long timeout; /* timeout */
-
- /* Flags and state transition */
- spinlock_t lock; /* lock for state transition */
- volatile __u16 flags; /* status flags */
- volatile __u16 state; /* state info */
- volatile __u16 old_state; /* old state, to be used for
- * state transition triggerd
- * synchronization
- */
-
- /* Control members */
- struct ip_vs_conn *control; /* Master control connection */
- atomic_t n_control; /* Number of controlled ones */
- struct ip_vs_dest *dest; /* real server */
- atomic_t in_pkts; /* incoming packet counter */
-
- /* packet transmitter for different forwarding methods. If it
- mangles the packet, it must return NF_DROP or better NF_STOLEN,
- otherwise this must be changed to a sk_buff **.
- */
- int (*packet_xmit)(struct sk_buff *skb, struct ip_vs_conn *cp,
- struct ip_vs_protocol *pp);
-
- /* Note: we can group the following members into a structure,
- in order to save more space, and the following members are
- only used in VS/NAT anyway */
- struct ip_vs_app *app; /* bound ip_vs_app object */
- void *app_data; /* Application private data */
- struct ip_vs_seq in_seq; /* incoming seq. struct */
- struct ip_vs_seq out_seq; /* outgoing seq. struct */
-};
-
-
-/*
- * Extended internal versions of struct ip_vs_service_user and
- * ip_vs_dest_user for IPv6 support.
- *
- * We need these to conveniently pass around service and destination
- * options, but unfortunately, we also need to keep the old definitions to
- * maintain userspace backwards compatibility for the setsockopt interface.
- */
-struct ip_vs_service_user_kern {
- /* virtual service addresses */
- u16 af;
- u16 protocol;
- union nf_inet_addr addr; /* virtual ip address */
- u16 port;
- u32 fwmark; /* firwall mark of service */
-
- /* virtual service options */
- char *sched_name;
- unsigned flags; /* virtual service flags */
- unsigned timeout; /* persistent timeout in sec */
- u32 netmask; /* persistent netmask */
-};
-
-
-struct ip_vs_dest_user_kern {
- /* destination server address */
- union nf_inet_addr addr;
- u16 port;
-
- /* real server options */
- unsigned conn_flags; /* connection flags */
- int weight; /* destination weight */
-
- /* thresholds for active connections */
- u32 u_threshold; /* upper threshold */
- u32 l_threshold; /* lower threshold */
-};
-
-
-/*
- * The information about the virtual service offered to the net
- * and the forwarding entries
- */
-struct ip_vs_service {
- struct list_head s_list; /* for normal service table */
- struct list_head f_list; /* for fwmark-based service table */
- atomic_t refcnt; /* reference counter */
- atomic_t usecnt; /* use counter */
-
- u16 af; /* address family */
- __u16 protocol; /* which protocol (TCP/UDP) */
- union nf_inet_addr addr; /* IP address for virtual service */
- __be16 port; /* port number for the service */
- __u32 fwmark; /* firewall mark of the service */
- unsigned flags; /* service status flags */
- unsigned timeout; /* persistent timeout in ticks */
- __be32 netmask; /* grouping granularity */
-
- struct list_head destinations; /* real server d-linked list */
- __u32 num_dests; /* number of servers */
- struct ip_vs_stats stats; /* statistics for the service */
- struct ip_vs_app *inc; /* bind conns to this app inc */
-
- /* for scheduling */
- struct ip_vs_scheduler *scheduler; /* bound scheduler object */
- rwlock_t sched_lock; /* lock sched_data */
- void *sched_data; /* scheduler application data */
-};
-
-
-/*
- * The real server destination forwarding entry
- * with ip address, port number, and so on.
- */
-struct ip_vs_dest {
- struct list_head n_list; /* for the dests in the service */
- struct list_head d_list; /* for table with all the dests */
-
- u16 af; /* address family */
- union nf_inet_addr addr; /* IP address of the server */
- __be16 port; /* port number of the server */
- volatile unsigned flags; /* dest status flags */
- atomic_t conn_flags; /* flags to copy to conn */
- atomic_t weight; /* server weight */
-
- atomic_t refcnt; /* reference counter */
- struct ip_vs_stats stats; /* statistics */
-
- /* connection counters and thresholds */
- atomic_t activeconns; /* active connections */
- atomic_t inactconns; /* inactive connections */
- atomic_t persistconns; /* persistent connections */
- __u32 u_threshold; /* upper threshold */
- __u32 l_threshold; /* lower threshold */
-
- /* for destination cache */
- spinlock_t dst_lock; /* lock of dst_cache */
- struct dst_entry *dst_cache; /* destination cache entry */
- u32 dst_rtos; /* RT_TOS(tos) for dst */
-
- /* for virtual service */
- struct ip_vs_service *svc; /* service it belongs to */
- __u16 protocol; /* which protocol (TCP/UDP) */
- union nf_inet_addr vaddr; /* virtual IP address */
- __be16 vport; /* virtual port number */
- __u32 vfwmark; /* firewall mark of service */
-};
-
-
-/*
- * The scheduler object
- */
-struct ip_vs_scheduler {
- struct list_head n_list; /* d-linked list head */
- char *name; /* scheduler name */
- atomic_t refcnt; /* reference counter */
- struct module *module; /* THIS_MODULE/NULL */
-
- /* scheduler initializing service */
- int (*init_service)(struct ip_vs_service *svc);
- /* scheduling service finish */
- int (*done_service)(struct ip_vs_service *svc);
- /* scheduler updating service */
- int (*update_service)(struct ip_vs_service *svc);
-
- /* selecting a server from the given service */
- struct ip_vs_dest* (*schedule)(struct ip_vs_service *svc,
- const struct sk_buff *skb);
-};
-
-
-/*
- * The application module object (a.k.a. app incarnation)
- */
-struct ip_vs_app
-{
- struct list_head a_list; /* member in app list */
- int type; /* IP_VS_APP_TYPE_xxx */
- char *name; /* application module name */
- __u16 protocol;
- struct module *module; /* THIS_MODULE/NULL */
- struct list_head incs_list; /* list of incarnations */
-
- /* members for application incarnations */
- struct list_head p_list; /* member in proto app list */
- struct ip_vs_app *app; /* its real application */
- __be16 port; /* port number in net order */
- atomic_t usecnt; /* usage counter */
-
- /* output hook: return false if can't linearize. diff set for TCP. */
- int (*pkt_out)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff *, int *diff);
-
- /* input hook: return false if can't linearize. diff set for TCP. */
- int (*pkt_in)(struct ip_vs_app *, struct ip_vs_conn *,
- struct sk_buff *, int *diff);
-
- /* ip_vs_app initializer */
- int (*init_conn)(struct ip_vs_app *, struct ip_vs_conn *);
-
- /* ip_vs_app finish */
- int (*done_conn)(struct ip_vs_app *, struct ip_vs_conn *);
-
-
- /* not used now */
- int (*bind_conn)(struct ip_vs_app *, struct ip_vs_conn *,
- struct ip_vs_protocol *);
-
- void (*unbind_conn)(struct ip_vs_app *, struct ip_vs_conn *);
-
- int * timeout_table;
- int * timeouts;
- int timeouts_size;
-
- int (*conn_schedule)(struct sk_buff *skb, struct ip_vs_app *app,
- int *verdict, struct ip_vs_conn **cpp);
-
- struct ip_vs_conn *
- (*conn_in_get)(const struct sk_buff *skb, struct ip_vs_app *app,
- const struct iphdr *iph, unsigned int proto_off,
- int inverse);
-
- struct ip_vs_conn *
- (*conn_out_get)(const struct sk_buff *skb, struct ip_vs_app *app,
- const struct iphdr *iph, unsigned int proto_off,
- int inverse);
-
- int (*state_transition)(struct ip_vs_conn *cp, int direction,
- const struct sk_buff *skb,
- struct ip_vs_app *app);
-
- void (*timeout_change)(struct ip_vs_app *app, int flags);
-};
-
-
-/*
- * IPVS core functions
- * (from ip_vs_core.c)
- */
-extern const char *ip_vs_proto_name(unsigned proto);
-extern void ip_vs_init_hash_table(struct list_head *table, int rows);
-#define IP_VS_INIT_HASH_TABLE(t) ip_vs_init_hash_table((t), ARRAY_SIZE((t)))
-
-#define IP_VS_APP_TYPE_FTP 1
-
-/*
- * ip_vs_conn handling functions
- * (from ip_vs_conn.c)
- */
-
-/*
- * IPVS connection entry hash table
- */
-#ifndef CONFIG_IP_VS_TAB_BITS
-#define CONFIG_IP_VS_TAB_BITS 12
-#endif
-
-#define IP_VS_CONN_TAB_BITS CONFIG_IP_VS_TAB_BITS
-#define IP_VS_CONN_TAB_SIZE (1 << IP_VS_CONN_TAB_BITS)
-#define IP_VS_CONN_TAB_MASK (IP_VS_CONN_TAB_SIZE - 1)
-
-enum {
- IP_VS_DIR_INPUT = 0,
- IP_VS_DIR_OUTPUT,
- IP_VS_DIR_INPUT_ONLY,
- IP_VS_DIR_LAST,
-};
-
-extern struct ip_vs_conn *ip_vs_conn_in_get
-(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
- const union nf_inet_addr *d_addr, __be16 d_port);
-
-extern struct ip_vs_conn *ip_vs_ct_in_get
-(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
- const union nf_inet_addr *d_addr, __be16 d_port);
-
-extern struct ip_vs_conn *ip_vs_conn_out_get
-(int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
- const union nf_inet_addr *d_addr, __be16 d_port);
-
-/* put back the conn without restarting its timer */
-static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
-{
- atomic_dec(&cp->refcnt);
-}
-extern void ip_vs_conn_put(struct ip_vs_conn *cp);
-extern void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport);
-
-extern struct ip_vs_conn *
-ip_vs_conn_new(int af, int proto, const union nf_inet_addr *caddr, __be16 cport,
- const union nf_inet_addr *vaddr, __be16 vport,
- const union nf_inet_addr *daddr, __be16 dport, unsigned flags,
- struct ip_vs_dest *dest);
-extern void ip_vs_conn_expire_now(struct ip_vs_conn *cp);
-
-extern const char * ip_vs_state_name(__u16 proto, int state);
-
-extern void ip_vs_tcp_conn_listen(struct ip_vs_conn *cp);
-extern int ip_vs_check_template(struct ip_vs_conn *ct);
-extern void ip_vs_random_dropentry(void);
-extern int ip_vs_conn_init(void);
-extern void ip_vs_conn_cleanup(void);
-
-static inline void ip_vs_control_del(struct ip_vs_conn *cp)
-{
- struct ip_vs_conn *ctl_cp = cp->control;
- if (!ctl_cp) {
- IP_VS_ERR_BUF("request control DEL for uncontrolled: "
- "%s:%d to %s:%d\n",
- IP_VS_DBG_ADDR(cp->af, &cp->caddr),
- ntohs(cp->cport),
- IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
- ntohs(cp->vport));
-
- return;
- }
-
- IP_VS_DBG_BUF(7, "DELeting control for: "
- "cp.dst=%s:%d ctl_cp.dst=%s:%d\n",
- IP_VS_DBG_ADDR(cp->af, &cp->caddr),
- ntohs(cp->cport),
- IP_VS_DBG_ADDR(cp->af, &ctl_cp->caddr),
- ntohs(ctl_cp->cport));
-
- cp->control = NULL;
- if (atomic_read(&ctl_cp->n_control) == 0) {
- IP_VS_ERR_BUF("BUG control DEL with n=0 : "
- "%s:%d to %s:%d\n",
- IP_VS_DBG_ADDR(cp->af, &cp->caddr),
- ntohs(cp->cport),
- IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
- ntohs(cp->vport));
-
- return;
- }
- atomic_dec(&ctl_cp->n_control);
-}
-
-static inline void
-ip_vs_control_add(struct ip_vs_conn *cp, struct ip_vs_conn *ctl_cp)
-{
- if (cp->control) {
- IP_VS_ERR_BUF("request control ADD for already controlled: "
- "%s:%d to %s:%d\n",
- IP_VS_DBG_ADDR(cp->af, &cp->caddr),
- ntohs(cp->cport),
- IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
- ntohs(cp->vport));
-
- ip_vs_control_del(cp);
- }
-
- IP_VS_DBG_BUF(7, "ADDing control for: "
- "cp.dst=%s:%d ctl_cp.dst=%s:%d\n",
- IP_VS_DBG_ADDR(cp->af, &cp->caddr),
- ntohs(cp->cport),
- IP_VS_DBG_ADDR(cp->af, &ctl_cp->caddr),
- ntohs(ctl_cp->cport));
-
- cp->control = ctl_cp;
- atomic_inc(&ctl_cp->n_control);
-}
-
-
-/*
- * IPVS application functions
- * (from ip_vs_app.c)
- */
-#define IP_VS_APP_MAX_PORTS 8
-extern int register_ip_vs_app(struct ip_vs_app *app);
-extern void unregister_ip_vs_app(struct ip_vs_app *app);
-extern int ip_vs_bind_app(struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern void ip_vs_unbind_app(struct ip_vs_conn *cp);
-extern int
-register_ip_vs_app_inc(struct ip_vs_app *app, __u16 proto, __u16 port);
-extern int ip_vs_app_inc_get(struct ip_vs_app *inc);
-extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
-
-extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
-extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
-extern int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
- char *o_buf, int o_len, char *n_buf, int n_len);
-extern int ip_vs_app_init(void);
-extern void ip_vs_app_cleanup(void);
-
-
-/*
- * IPVS protocol functions (from ip_vs_proto.c)
- */
-extern int ip_vs_protocol_init(void);
-extern void ip_vs_protocol_cleanup(void);
-extern void ip_vs_protocol_timeout_change(int flags);
-extern int *ip_vs_create_timeout_table(int *table, int size);
-extern int
-ip_vs_set_state_timeout(int *table, int num, char **names, char *name, int to);
-extern void
-ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
- int offset, const char *msg);
-
-extern struct ip_vs_protocol ip_vs_protocol_tcp;
-extern struct ip_vs_protocol ip_vs_protocol_udp;
-extern struct ip_vs_protocol ip_vs_protocol_icmp;
-extern struct ip_vs_protocol ip_vs_protocol_esp;
-extern struct ip_vs_protocol ip_vs_protocol_ah;
-
-
-/*
- * Registering/unregistering scheduler functions
- * (from ip_vs_sched.c)
- */
-extern int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
-extern int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
-extern int ip_vs_bind_scheduler(struct ip_vs_service *svc,
- struct ip_vs_scheduler *scheduler);
-extern int ip_vs_unbind_scheduler(struct ip_vs_service *svc);
-extern struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
-extern void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
-extern struct ip_vs_conn *
-ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb);
-extern int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
- struct ip_vs_protocol *pp);
-
-
-/*
- * IPVS control data and functions (from ip_vs_ctl.c)
- */
-extern int sysctl_ip_vs_cache_bypass;
-extern int sysctl_ip_vs_expire_nodest_conn;
-extern int sysctl_ip_vs_expire_quiescent_template;
-extern int sysctl_ip_vs_sync_threshold[2];
-extern int sysctl_ip_vs_nat_icmp_send;
-extern struct ip_vs_stats ip_vs_stats;
-extern const struct ctl_path net_vs_ctl_path[];
-
-extern struct ip_vs_service *
-ip_vs_service_get(int af, __u32 fwmark, __u16 protocol,
- const union nf_inet_addr *vaddr, __be16 vport);
-
-static inline void ip_vs_service_put(struct ip_vs_service *svc)
-{
- atomic_dec(&svc->usecnt);
-}
-
-extern struct ip_vs_dest *
-ip_vs_lookup_real_service(int af, __u16 protocol,
- const union nf_inet_addr *daddr, __be16 dport);
-
-extern int ip_vs_use_count_inc(void);
-extern void ip_vs_use_count_dec(void);
-extern int ip_vs_control_init(void);
-extern void ip_vs_control_cleanup(void);
-extern struct ip_vs_dest *
-ip_vs_find_dest(int af, const union nf_inet_addr *daddr, __be16 dport,
- const union nf_inet_addr *vaddr, __be16 vport, __u16 protocol);
-extern struct ip_vs_dest *ip_vs_try_bind_dest(struct ip_vs_conn *cp);
-
-
-/*
- * IPVS sync daemon data and function prototypes
- * (from ip_vs_sync.c)
- */
-extern volatile int ip_vs_sync_state;
-extern volatile int ip_vs_master_syncid;
-extern volatile int ip_vs_backup_syncid;
-extern char ip_vs_master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
-extern char ip_vs_backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
-extern int start_sync_thread(int state, char *mcast_ifn, __u8 syncid);
-extern int stop_sync_thread(int state);
-extern void ip_vs_sync_conn(struct ip_vs_conn *cp);
-
-
-/*
- * IPVS rate estimator prototypes (from ip_vs_est.c)
- */
-extern int ip_vs_estimator_init(void);
-extern void ip_vs_estimator_cleanup(void);
-extern void ip_vs_new_estimator(struct ip_vs_stats *stats);
-extern void ip_vs_kill_estimator(struct ip_vs_stats *stats);
-extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);
-
-/*
- * Various IPVS packet transmitters (from ip_vs_xmit.c)
- */
-extern int ip_vs_null_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_bypass_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_nat_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_tunnel_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_dr_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_icmp_xmit
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp, int offset);
-extern void ip_vs_dst_reset(struct ip_vs_dest *dest);
-
-#ifdef CONFIG_IP_VS_IPV6
-extern int ip_vs_bypass_xmit_v6
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_nat_xmit_v6
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_tunnel_xmit_v6
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_dr_xmit_v6
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern int ip_vs_icmp_xmit_v6
-(struct sk_buff *skb, struct ip_vs_conn *cp, struct ip_vs_protocol *pp,
- int offset);
-#endif
-
-/*
- * This is a simple mechanism to ignore packets when
- * we are loaded. Just set ip_vs_drop_rate to 'n' and
- * we start to drop 1/rate of the packets
- */
-extern int ip_vs_drop_rate;
-extern int ip_vs_drop_counter;
-
-static __inline__ int ip_vs_todrop(void)
-{
- if (!ip_vs_drop_rate) return 0;
- if (--ip_vs_drop_counter > 0) return 0;
- ip_vs_drop_counter = ip_vs_drop_rate;
- return 1;
-}
-
-/*
- * ip_vs_fwd_tag returns the forwarding tag of the connection
- */
-#define IP_VS_FWD_METHOD(cp) (cp->flags & IP_VS_CONN_F_FWD_MASK)
-
-static inline char ip_vs_fwd_tag(struct ip_vs_conn *cp)
-{
- char fwd;
-
- switch (IP_VS_FWD_METHOD(cp)) {
- case IP_VS_CONN_F_MASQ:
- fwd = 'M'; break;
- case IP_VS_CONN_F_LOCALNODE:
- fwd = 'L'; break;
- case IP_VS_CONN_F_TUNNEL:
- fwd = 'T'; break;
- case IP_VS_CONN_F_DROUTE:
- fwd = 'R'; break;
- case IP_VS_CONN_F_BYPASS:
- fwd = 'B'; break;
- default:
- fwd = '?'; break;
- }
- return fwd;
-}
-
-extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
- struct ip_vs_conn *cp, int dir);
-
-#ifdef CONFIG_IP_VS_IPV6
-extern void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
- struct ip_vs_conn *cp, int dir);
-#endif
-
-extern __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
-
-static inline __wsum ip_vs_check_diff4(__be32 old, __be32 new, __wsum oldsum)
-{
- __be32 diff[2] = { ~old, new };
-
- return csum_partial(diff, sizeof(diff), oldsum);
-}
-
-#ifdef CONFIG_IP_VS_IPV6
-static inline __wsum ip_vs_check_diff16(const __be32 *old, const __be32 *new,
- __wsum oldsum)
-{
- __be32 diff[8] = { ~old[3], ~old[2], ~old[1], ~old[0],
- new[3], new[2], new[1], new[0] };
-
- return csum_partial(diff, sizeof(diff), oldsum);
-}
-#endif
-
-static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
-{
- __be16 diff[2] = { ~old, new };
-
- return csum_partial(diff, sizeof(diff), oldsum);
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _NET_IP_VS_H */