Include dependency graph for lb.h:

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Data Structures
struct	lb_as_t
	Each VIP is configured with a set of application server. More...

struct	lb_new_flow_entry_t

struct	lb_vip_encap_args_t

struct	vip_port_key_t

struct	lb_vip_t
	Load balancing service is provided per VIP+protocol+port. More...

struct	lb_snat4_key_t

struct	lb_snat6_key_t

struct	lb_snat_mapping_t

struct	lb_per_cpu_t

struct	lb_main_t

struct	lb_vip_add_args_t

Macros
#define	LB_DEFAULT_PER_CPU_STICKY_BUCKETS 1 << 10
	lb-plugin implements a MagLev-like load balancer. More...

#define	LB_DEFAULT_FLOW_TIMEOUT 40

#define	LB_MAPPING_BUCKETS 1024

#define	LB_MAPPING_MEMORY_SIZE 64<<20

#define	LB_VIP_PER_PORT_BUCKETS 1024

#define	LB_VIP_PER_PORT_MEMORY_SIZE 64<<20

#define	foreach_lb_nat_in2out_error

#define	LB_AS_FLAGS_USED 0x1

#define	lb_foreach_vip_counter

#define	LB_VIP_FLAGS_USED 0x1

#define	lb_vip_is_ip4(type)

#define	lb_vip_is_ip6(type)

#define	lb_encap_is_ip4(vip)

#define	lb_vip_is_gre4(vip)

#define	lb_vip_is_gre6(vip)

#define	lb_vip_is_gre4_port(vip)

#define	lb_vip_is_gre6_port(vip)

#define	foreach_lb_nat_protocol

#define	lb_vip_get_by_index(index) (pool_is_free_index(lb_main.vips, index)?NULL:pool_elt_at_index(lb_main.vips, index))

Enumerations
enum	lb_next_t { LB_NEXT_DROP, LB_N_NEXT }

enum	LB_nat4_in2out_next_t { LB_NAT4_IN2OUT_NEXT_DROP, LB_NAT4_IN2OUT_NEXT_LOOKUP, LB_NAT4_IN2OUT_N_NEXT }

enum	LB_nat6_in2out_next_t { LB_NAT6_IN2OUT_NEXT_DROP, LB_NAT6_IN2OUT_NEXT_LOOKUP, LB_NAT6_IN2OUT_N_NEXT }

enum	lb_nat_in2out_error_t { LB_NAT_IN2OUT_N_ERROR }

enum	lb_svr_type_t { LB_SRV_TYPE_CLUSTERIP, LB_SRV_TYPE_NODEPORT, LB_SRV_N_TYPES }
	lb for kube-proxy supports three types of service More...

enum	lb4_nodeport_next_t { LB4_NODEPORT_NEXT_IP4_NAT4, LB4_NODEPORT_NEXT_DROP, LB4_NODEPORT_N_NEXT }

enum	lb6_nodeport_next_t { LB6_NODEPORT_NEXT_IP6_NAT6, LB6_NODEPORT_NEXT_DROP, LB6_NODEPORT_N_NEXT }

enum	lb_vip_counter_t { LB_N_VIP_COUNTERS }

enum	lb_encap_type_t { LB_ENCAP_TYPE_GRE4, LB_ENCAP_TYPE_GRE6, LB_ENCAP_TYPE_L3DSR, LB_ENCAP_TYPE_NAT4, LB_ENCAP_TYPE_NAT6, LB_ENCAP_N_TYPES }

enum	lb_lkp_type_t { LB_LKP_SAME_IP_PORT, LB_LKP_DIFF_IP_PORT, LB_LKP_ALL_PORT_IP, LB_LKP_N_TYPES, LB_API_LKP_SAME_IP_PORT = 0, LB_API_LKP_DIFF_IP_PORT = 1, LB_API_LKP_ALL_PORT_IP =2, LB_API_LKP_N_TYPES =3 }
	Lookup type. More...

enum	lb_vip_type_t { LB_VIP_TYPE_IP6_GRE6, LB_VIP_TYPE_IP6_GRE4, LB_VIP_TYPE_IP4_GRE6, LB_VIP_TYPE_IP4_GRE4, LB_VIP_TYPE_IP4_L3DSR, LB_VIP_TYPE_IP4_NAT4, LB_VIP_TYPE_IP6_NAT6, LB_VIP_N_TYPES }
	The load balancer supports IPv4 and IPv6 traffic and GRE4, GRE6, L3DSR and NAT4, NAT6 encap. More...

enum	lb_nat_protocol_t { foreach_lb_nat_protocol }

Functions
static bool	lb_vip_is_l3dsr (const lb_vip_t *vip)

static bool	lb_vip_is_l3dsr_port (const lb_vip_t *vip)

static bool	lb_vip_is_nat4_port (const lb_vip_t *vip)

static bool	lb_vip_is_nat6_port (const lb_vip_t *vip)

static u32	lb_ip_proto_to_nat_proto (u8 ip_proto)

int	lb_conf (ip4_address_t ip4_address, ip6_address_t ip6_address, u32 sticky_buckets, u32 flow_timeout)
	Fix global load-balancer parameters. More...

int	lb_vip_add (lb_vip_add_args_t args, u32 *vip_index)

int	lb_vip_del (u32 vip_index)

int	lb_vip_find_index (ip46_address_t prefix, u8 plen, u8 protocol, u16 port, u32 vip_index)

int	lb_vip_add_ass (u32 vip_index, ip46_address_t *addresses, u32 n)

int	lb_vip_del_ass (u32 vip_index, ip46_address_t *addresses, u32 n, u8 flush)

int	lb_flush_vip_as (u32 vip_index, u32 as_index)

u32	lb_hash_time_now (vlib_main_t *vm)

void	lb_garbage_collection ()

int	lb_nat4_interface_add_del (u32 sw_if_index, int is_del)

int	lb_nat6_interface_add_del (u32 sw_if_index, int is_del)

Variables
format_function_t	format_lb_as

format_function_t	format_lb_vip_type

unformat_function_t	unformat_lb_vip_type

format_function_t	format_lb_vip

format_function_t	format_lb_vip_detailed

lb_main_t	lb_main

vlib_node_registration_t	lb4_node

vlib_node_registration_t	lb6_node

vlib_node_registration_t	lb4_nodeport_node
	(constructor) VLIB_REGISTER_NODE (lb4_nodeport_node) More...

vlib_node_registration_t	lb6_nodeport_node
	(constructor) VLIB_REGISTER_NODE (lb6_nodeport_node) More...

vlib_node_registration_t	lb_nat4_in2out_node
	(constructor) VLIB_REGISTER_NODE (lb_nat4_in2out_node) More...

vlib_node_registration_t	lb_nat6_in2out_node
	(constructor) VLIB_REGISTER_NODE (lb_nat6_in2out_node) More...

format_function_t	format_lb_main

Macro Definition Documentation

◆ foreach_lb_nat_in2out_error

#define foreach_lb_nat_in2out_error

Value:

_(UNSUPPORTED_PROTOCOL, "Unsupported protocol")         \
_(IN2OUT_PACKETS, "Good in2out packets processed")      \
_(NO_TRANSLATION, "No translation")

Definition at line 71 of file lb.h.

◆ foreach_lb_nat_protocol

#define foreach_lb_nat_protocol

Value:

_(UDP, 0, udp, "udp") \

_(TCP, 1, tcp, "tcp")

Definition at line 391 of file lb.h.

◆ LB_AS_FLAGS_USED

#define LB_AS_FLAGS_USED 0x1

Definition at line 135 of file lb.h.

◆ LB_DEFAULT_FLOW_TIMEOUT

#define LB_DEFAULT_FLOW_TIMEOUT 40

Definition at line 47 of file lb.h.

◆ LB_DEFAULT_PER_CPU_STICKY_BUCKETS

#define LB_DEFAULT_PER_CPU_STICKY_BUCKETS 1 << 10

lb-plugin implements a MagLev-like load balancer.

http://research.google.com/pubs/pub44824.html

It hasn't been tested for interoperability with the original MagLev but intends to provide similar functionality. The load-balancer receives traffic destined to VIP (Virtual IP) addresses from one or multiple(ECMP) routers. The load-balancer tunnels the traffic toward many application servers ensuring session stickyness (i.e. that a single sessions is tunneled towards a single application server).

Definition at line 46 of file lb.h.

◆ lb_encap_is_ip4

#define lb_encap_is_ip4 ( vip )

Value:

((vip)->type == LB_VIP_TYPE_IP6_GRE4 \
                             || (vip)->type == LB_VIP_TYPE_IP4_GRE4 \
                             || (vip)->type == LB_VIP_TYPE_IP4_L3DSR \
                             || (vip)->type == LB_VIP_TYPE_IP4_NAT4 )

Definition at line 344 of file lb.h.

◆ lb_foreach_vip_counter

#define lb_foreach_vip_counter

Value:

_(NEXT_PACKET, "packet from existing sessions", 0) \
 _(FIRST_PACKET, "first session packet", 1) \
 _(UNTRACKED_PACKET, "untracked packet", 2) \
 _(NO_SERVER, "no server configured", 3)

Definition at line 171 of file lb.h.

◆ LB_MAPPING_BUCKETS

#define LB_MAPPING_BUCKETS 1024

Definition at line 48 of file lb.h.

◆ LB_MAPPING_MEMORY_SIZE

#define LB_MAPPING_MEMORY_SIZE 64<<20

Definition at line 49 of file lb.h.

◆ LB_VIP_FLAGS_USED

#define LB_VIP_FLAGS_USED 0x1

Definition at line 326 of file lb.h.

◆ lb_vip_get_by_index

#define lb_vip_get_by_index ( index ) (pool_is_free_index(lb_main.vips, index)?NULL:pool_elt_at_index(lb_main.vips, index))

Definition at line 607 of file lb.h.

◆ lb_vip_is_gre4

#define lb_vip_is_gre4 ( vip )

Value:

(((vip)->type == LB_VIP_TYPE_IP6_GRE4 \
                            || (vip)->type == LB_VIP_TYPE_IP4_GRE4) \
                            && ((vip)->port == 0))

Definition at line 349 of file lb.h.

◆ lb_vip_is_gre4_port

#define lb_vip_is_gre4_port ( vip )

Value:

(((vip)->type == LB_VIP_TYPE_IP6_GRE4 \
                                 || (vip)->type == LB_VIP_TYPE_IP4_GRE4) \
                                 && ((vip)->port != 0))

Definition at line 358 of file lb.h.

◆ lb_vip_is_gre6

#define lb_vip_is_gre6 ( vip )

Value:

(((vip)->type == LB_VIP_TYPE_IP6_GRE6 \
                            || (vip)->type == LB_VIP_TYPE_IP4_GRE6) \
                            && ((vip)->port == 0))

Definition at line 354 of file lb.h.

◆ lb_vip_is_gre6_port

#define lb_vip_is_gre6_port ( vip )

Value:

(((vip)->type == LB_VIP_TYPE_IP6_GRE6 \
                                 || (vip)->type == LB_VIP_TYPE_IP4_GRE6) \
                                 && ((vip)->port != 0))

Definition at line 362 of file lb.h.

◆ lb_vip_is_ip4

#define lb_vip_is_ip4 ( type )

Value:

(type == LB_VIP_TYPE_IP4_GRE6 \
                            || type == LB_VIP_TYPE_IP4_GRE4 \
                            || type == LB_VIP_TYPE_IP4_L3DSR \
                            || type == LB_VIP_TYPE_IP4_NAT4 )

Definition at line 335 of file lb.h.

◆ lb_vip_is_ip6

#define lb_vip_is_ip6 ( type )

Value:

(type == LB_VIP_TYPE_IP6_GRE6 \
                            || type == LB_VIP_TYPE_IP6_GRE4 \
                            || type == LB_VIP_TYPE_IP6_NAT6 )

Definition at line 340 of file lb.h.

◆ LB_VIP_PER_PORT_BUCKETS

#define LB_VIP_PER_PORT_BUCKETS 1024

Definition at line 51 of file lb.h.

◆ LB_VIP_PER_PORT_MEMORY_SIZE

#define LB_VIP_PER_PORT_MEMORY_SIZE 64<<20

Definition at line 52 of file lb.h.

Enumeration Type Documentation

◆ lb4_nodeport_next_t

enum lb4_nodeport_next_t

Enumerator
LB4_NODEPORT_NEXT_IP4_NAT4
LB4_NODEPORT_NEXT_DROP
LB4_NODEPORT_N_NEXT

Definition at line 92 of file lb.h.

◆ lb6_nodeport_next_t

enum lb6_nodeport_next_t

Enumerator
LB6_NODEPORT_NEXT_IP6_NAT6
LB6_NODEPORT_NEXT_DROP
LB6_NODEPORT_N_NEXT

Definition at line 98 of file lb.h.

◆ lb_encap_type_t

enum lb_encap_type_t

Enumerator
LB_ENCAP_TYPE_GRE4
LB_ENCAP_TYPE_GRE6
LB_ENCAP_TYPE_L3DSR
LB_ENCAP_TYPE_NAT4
LB_ENCAP_TYPE_NAT6
LB_ENCAP_N_TYPES

Definition at line 184 of file lb.h.

◆ lb_lkp_type_t

enum lb_lkp_type_t

Lookup type.

Enumerator
LB_LKP_SAME_IP_PORT
LB_LKP_DIFF_IP_PORT
LB_LKP_ALL_PORT_IP
LB_LKP_N_TYPES
LB_API_LKP_SAME_IP_PORT
LB_API_LKP_DIFF_IP_PORT
LB_API_LKP_ALL_PORT_IP
LB_API_LKP_N_TYPES

Definition at line 197 of file lb.h.

◆ LB_nat4_in2out_next_t

enum LB_nat4_in2out_next_t

Enumerator
LB_NAT4_IN2OUT_NEXT_DROP
LB_NAT4_IN2OUT_NEXT_LOOKUP
LB_NAT4_IN2OUT_N_NEXT

Definition at line 59 of file lb.h.

◆ LB_nat6_in2out_next_t

enum LB_nat6_in2out_next_t

Enumerator
LB_NAT6_IN2OUT_NEXT_DROP
LB_NAT6_IN2OUT_NEXT_LOOKUP
LB_NAT6_IN2OUT_N_NEXT

Definition at line 65 of file lb.h.

◆ lb_nat_in2out_error_t

enum lb_nat_in2out_error_t

Enumerator
LB_NAT_IN2OUT_N_ERROR

Definition at line 76 of file lb.h.

◆ lb_nat_protocol_t

enum lb_nat_protocol_t

Enumerator
foreach_lb_nat_protocol

Definition at line 395 of file lb.h.

◆ lb_next_t

enum lb_next_t

Enumerator
LB_NEXT_DROP
LB_N_NEXT

Definition at line 54 of file lb.h.

◆ lb_svr_type_t

enum lb_svr_type_t

lb for kube-proxy supports three types of service

Enumerator
LB_SRV_TYPE_CLUSTERIP
LB_SRV_TYPE_NODEPORT
LB_SRV_N_TYPES

Definition at line 86 of file lb.h.

◆ lb_vip_counter_t

enum lb_vip_counter_t

Enumerator
LB_N_VIP_COUNTERS

Definition at line 177 of file lb.h.

◆ lb_vip_type_t

enum lb_vip_type_t

The load balancer supports IPv4 and IPv6 traffic and GRE4, GRE6, L3DSR and NAT4, NAT6 encap.

Enumerator
LB_VIP_TYPE_IP6_GRE6
LB_VIP_TYPE_IP6_GRE4
LB_VIP_TYPE_IP4_GRE6
LB_VIP_TYPE_IP4_GRE4
LB_VIP_TYPE_IP4_L3DSR
LB_VIP_TYPE_IP4_NAT4
LB_VIP_TYPE_IP6_NAT6
LB_VIP_N_TYPES

Definition at line 208 of file lb.h.

Function Documentation

◆ lb_conf()

int lb_conf	(	ip4_address_t *	ip4_address,
		ip6_address_t *	ip6_address,
		u32	sticky_buckets,
		u32	flow_timeout
	)

Fix global load-balancer parameters.

Parameters

ip4_address	IPv4 source address used for encapsulated traffic
ip6_address	IPv6 source address used for encapsulated traffic

Returns: 0 on success. VNET_LB_ERR_XXX on error

Definition at line 473 of file lb.c.

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