lb.c File Reference

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Data Structures
struct	lb_pseudorand_t

Macros
#define	LB_GARBAGE_RUN   60
#define	LB_CONCURRENCY_TIMEOUT   10
#define	lb_get_writer_lock()   clib_spinlock_lock (&lb_main.writer_lock)
#define	lb_put_writer_lock()   clib_spinlock_unlock (&lb_main.writer_lock)

Functions
static void	lb_as_stack (lb_as_t *as)
u32	lb_hash_time_now (vlib_main_t *vm)
u8 *	format_lb_main (u8 *s, va_list *args)
u8 *	format_lb_vip_type (u8 *s, va_list *args)
uword	unformat_lb_vip_type (unformat_input_t *input, va_list *args)
u8 *	format_lb_vip (u8 *s, va_list *args)
u8 *	format_lb_as (u8 *s, va_list *args)
u8 *	format_lb_vip_detailed (u8 *s, va_list *args)
static int	lb_pseudorand_compare (void *a, void *b)
static void	lb_vip_garbage_collection (lb_vip_t *vip)
void	lb_garbage_collection ()
static void	lb_vip_update_new_flow_table (lb_vip_t *vip)
int	lb_conf (ip4_address_t *ip4_address, ip6_address_t *ip6_address, u32 per_cpu_sticky_buckets, u32 flow_timeout)
	Fix global load-balancer parameters. More...
static int	lb_vip_port_find_index (ip46_address_t *prefix, u8 plen, u8 protocol, u16 port, lb_lkp_type_t lkp_type, u32 *vip_index)
static int	lb_vip_port_find_index_with_lock (ip46_address_t *prefix, u8 plen, u8 protocol, u16 port, u32 *vip_index)
static int	lb_vip_port_find_all_port_vip (ip46_address_t *prefix, u8 plen, u32 *vip_index)
static int	lb_vip_port_find_diff_port (ip46_address_t *prefix, u8 plen, u8 protocol, u16 port, u32 *vip_index)
int	lb_vip_find_index (ip46_address_t *prefix, u8 plen, u8 protocol, u16 port, u32 *vip_index)
static int	lb_as_find_index_vip (lb_vip_t *vip, ip46_address_t *address, u32 *as_index)
int	lb_vip_add_ass (u32 vip_index, ip46_address_t *addresses, u32 n)
int	lb_flush_vip_as (u32 vip_index, u32 as_index)
int	lb_vip_del_ass_withlock (u32 vip_index, ip46_address_t *addresses, u32 n, u8 flush)
int	lb_vip_del_ass (u32 vip_index, ip46_address_t *addresses, u32 n, u8 flush)
static int	lb_vip_prefix_index_alloc (lb_main_t *lbm)
static int	lb_vip_prefix_index_free (lb_main_t *lbm, u32 instance)
static void	lb_vip_add_adjacency (lb_main_t *lbm, lb_vip_t *vip, u32 *vip_prefix_index)
	Add the VIP adjacency to the ip4 or ip6 fib. More...
static int	lb_vip_add_port_filter (lb_main_t *lbm, lb_vip_t *vip, u32 vip_prefix_index, u32 vip_idx)
	Add the VIP filter entry. More...
static int	lb_vip_del_port_filter (lb_main_t *lbm, lb_vip_t *vip)
	Del the VIP filter entry. More...
static void	lb_vip_del_adjacency (lb_main_t *lbm, lb_vip_t *vip)
	Deletes the adjacency associated with the VIP. More...
int	lb_vip_add (lb_vip_add_args_t args, u32 *vip_index)
int	lb_vip_del (u32 vip_index)
	VLIB_PLUGIN_REGISTER ()
u8 *	format_lb_dpo (u8 *s, va_list *va)
static void	lb_dpo_lock (dpo_id_t *dpo)
static void	lb_dpo_unlock (dpo_id_t *dpo)
static fib_node_t *	lb_fib_node_get_node (fib_node_index_t index)
static void	lb_fib_node_last_lock_gone (fib_node_t *node)
static lb_as_t *	lb_as_from_fib_node (fib_node_t *node)
static fib_node_back_walk_rc_t	lb_fib_node_back_walk_notify (fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
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)
clib_error_t *	lb_init (vlib_main_t *vm)

Variables
static fib_source_t	lb_fib_src
lb_main_t	lb_main
static const char *const	lb_dpo_gre4_ip4 [] = { "lb4-gre4" , NULL }
static const char *const	lb_dpo_gre4_ip6 [] = { "lb6-gre4" , NULL }
static const char *const *const	lb_dpo_gre4_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_gre6_ip4 [] = { "lb4-gre6" , NULL }
static const char *const	lb_dpo_gre6_ip6 [] = { "lb6-gre6" , NULL }
static const char *const *const	lb_dpo_gre6_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_gre4_ip4_port [] = { "lb4-gre4-port" , NULL }
static const char *const	lb_dpo_gre4_ip6_port [] = { "lb6-gre4-port" , NULL }
static const char *const *const	lb_dpo_gre4_port_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_gre6_ip4_port [] = { "lb4-gre6-port" , NULL }
static const char *const	lb_dpo_gre6_ip6_port [] = { "lb6-gre6-port" , NULL }
static const char *const *const	lb_dpo_gre6_port_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_l3dsr_ip4 [] = {"lb4-l3dsr" , NULL}
static const char *const *const	lb_dpo_l3dsr_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_l3dsr_ip4_port [] = {"lb4-l3dsr-port" , NULL}
static const char *const *const	lb_dpo_l3dsr_port_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_nat4_ip4_port [] = { "lb4-nat4-port" , NULL }
static const char *const *const	lb_dpo_nat4_port_nodes [DPO_PROTO_NUM]
static const char *const	lb_dpo_nat6_ip6_port [] = { "lb6-nat6-port" , NULL }
static const char *const *const	lb_dpo_nat6_port_nodes [DPO_PROTO_NUM]
static char *	lb_vip_type_strings []

Macro Definition Documentation

LB_CONCURRENCY_TIMEOUT

#define LB_CONCURRENCY_TIMEOUT   10

Definition at line 27 of file lb.c.

LB_GARBAGE_RUN

#define LB_GARBAGE_RUN   60

Definition at line 24 of file lb.c.

lb_get_writer_lock

#define lb_get_writer_lock

(

)

clib_spinlock_lock (&lb_main.writer_lock)

Definition at line 34 of file lb.c.

lb_put_writer_lock

#define lb_put_writer_lock

(

)

clib_spinlock_unlock (&lb_main.writer_lock)

Definition at line 35 of file lb.c.

Function Documentation

format_lb_as()

u8* format_lb_as	(	u8 *	s,
		va_list *	args
	)

Definition at line 187 of file lb.c.

format_lb_dpo()

u8* format_lb_dpo	(	u8 *	s,
		va_list *	va
	)

Definition at line 1259 of file lb.c.

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format_lb_main()

u8* format_lb_main	(	u8 *	s,
		va_list *	args
	)

Definition at line 101 of file lb.c.

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format_lb_vip()

u8* format_lb_vip	(	u8 *	s,
		va_list *	args
	)

Definition at line 156 of file lb.c.

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format_lb_vip_detailed()

u8* format_lb_vip_detailed	(	u8 *	s,
		va_list *	args
	)

Definition at line 195 of file lb.c.

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format_lb_vip_type()

u8* format_lb_vip_type	(	u8 *	s,
		va_list *	args
	)

Definition at line 134 of file lb.c.

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lb_as_find_index_vip()

static int lb_as_find_index_vip ( lb_vip_t *  vip, ip46_address_t *  address, u32 *  as_index  )

static

Definition at line 565 of file lb.c.

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lb_as_from_fib_node()

static lb_as_t* lb_as_from_fib_node ( fib_node_t *  node )

static

Definition at line 1285 of file lb.c.

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lb_as_stack()

static void lb_as_stack ( lb_as_t *  as )

static

Definition at line 1292 of file lb.c.

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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
sticky_buckets	FIXME
flow_timeout	FIXME

Returns

0 on success. VNET_LB_ERR_XXX on error

Definition at line 476 of file lb.c.

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lb_dpo_lock()

static void lb_dpo_lock ( dpo_id_t *  dpo )

static

Definition at line 1268 of file lb.c.

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lb_dpo_unlock()

static void lb_dpo_unlock ( dpo_id_t *  dpo )

static

Definition at line 1269 of file lb.c.

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lb_fib_node_back_walk_notify()

static fib_node_back_walk_rc_t lb_fib_node_back_walk_notify ( fib_node_t *  node, fib_node_back_walk_ctx_t *  ctx  )

static

Definition at line 1323 of file lb.c.

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lb_fib_node_get_node()

static fib_node_t* lb_fib_node_get_node ( fib_node_index_t  index )

static

Definition at line 1272 of file lb.c.

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lb_fib_node_last_lock_gone()

static void lb_fib_node_last_lock_gone ( fib_node_t *  node )

static

Definition at line 1280 of file lb.c.

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lb_flush_vip_as()

int lb_flush_vip_as	(	u32	vip_index,
		u32	as_index
	)

Definition at line 762 of file lb.c.

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lb_garbage_collection()

void lb_garbage_collection

(

)

Definition at line 357 of file lb.c.

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lb_hash_time_now()

u32 lb_hash_time_now

(

vlib_main_t *

vm

)

Definition at line 96 of file lb.c.

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lb_init()

clib_error_t* lb_init

(

vlib_main_t *

vm

)

Definition at line 1363 of file lb.c.

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lb_nat4_interface_add_del()

int lb_nat4_interface_add_del	(	u32	sw_if_index,
		int	is_del
	)

Definition at line 1330 of file lb.c.

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lb_nat6_interface_add_del()

int lb_nat6_interface_add_del	(	u32	sw_if_index,
		int	is_del
	)

Definition at line 1346 of file lb.c.

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lb_pseudorand_compare()

static int lb_pseudorand_compare ( void *  a, void *  b  )

static

Definition at line 279 of file lb.c.

lb_vip_add()

int lb_vip_add	(	lb_vip_add_args_t	args,
		u32 *	vip_index
	)

Definition at line 1048 of file lb.c.

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lb_vip_add_adjacency()

static void lb_vip_add_adjacency ( lb_main_t *  lbm, lb_vip_t *  vip, u32 *  vip_prefix_index  )

static

Add the VIP adjacency to the ip4 or ip6 fib.

Definition at line 895 of file lb.c.

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lb_vip_add_ass()

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

Definition at line 585 of file lb.c.

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lb_vip_add_port_filter()

static int lb_vip_add_port_filter ( lb_main_t *  lbm, lb_vip_t *  vip, u32  vip_prefix_index, u32  vip_idx  )

static

Add the VIP filter entry.

Definition at line 965 of file lb.c.

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lb_vip_del()

int lb_vip_del

(

u32

vip_index

)

Definition at line 1202 of file lb.c.

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lb_vip_del_adjacency()

static void lb_vip_del_adjacency ( lb_main_t *  lbm, lb_vip_t *  vip  )

static

Deletes the adjacency associated with the VIP.

Definition at line 1015 of file lb.c.

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lb_vip_del_ass()

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

Definition at line 853 of file lb.c.

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lb_vip_del_ass_withlock()

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

Definition at line 796 of file lb.c.

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lb_vip_del_port_filter()

static int lb_vip_del_port_filter ( lb_main_t *  lbm, lb_vip_t *  vip  )

static

Del the VIP filter entry.

Definition at line 986 of file lb.c.

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lb_vip_find_index()

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

Definition at line 554 of file lb.c.

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lb_vip_garbage_collection()

static void lb_vip_garbage_collection ( lb_vip_t *  vip )

static

Definition at line 288 of file lb.c.

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lb_vip_port_find_all_port_vip()

static int lb_vip_port_find_all_port_vip ( ip46_address_t *  prefix, u8  plen, u32 *  vip_index  )

static

Definition at line 538 of file lb.c.

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lb_vip_port_find_diff_port()

static int lb_vip_port_find_diff_port ( ip46_address_t *  prefix, u8  plen, u8  protocol, u16  port, u32 *  vip_index  )

static

Definition at line 547 of file lb.c.

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lb_vip_port_find_index()

static int lb_vip_port_find_index ( ip46_address_t *  prefix, u8  plen, u8  protocol, u16  port, lb_lkp_type_t  lkp_type, u32 *  vip_index  )

static

Definition at line 496 of file lb.c.

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lb_vip_port_find_index_with_lock()

static int lb_vip_port_find_index_with_lock ( ip46_address_t *  prefix, u8  plen, u8  protocol, u16  port, u32 *  vip_index  )

static

Definition at line 530 of file lb.c.

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lb_vip_prefix_index_alloc()

static int lb_vip_prefix_index_alloc ( lb_main_t *  lbm )

static

Definition at line 863 of file lb.c.

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lb_vip_prefix_index_free()

static int lb_vip_prefix_index_free ( lb_main_t *  lbm, u32  instance  )

static

Definition at line 878 of file lb.c.

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lb_vip_update_new_flow_table()

static void lb_vip_update_new_flow_table ( lb_vip_t *  vip )

static

Definition at line 382 of file lb.c.

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unformat_lb_vip_type()

uword unformat_lb_vip_type	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 144 of file lb.c.

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VLIB_PLUGIN_REGISTER()

VLIB_PLUGIN_REGISTER

(

)

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Variable Documentation

lb_dpo_gre4_ip4

const char* const lb_dpo_gre4_ip4[] = { "lb4-gre4" , NULL }

static

Definition at line 40 of file lb.c.

lb_dpo_gre4_ip4_port

const char* const lb_dpo_gre4_ip4_port[] = { "lb4-gre4-port" , NULL }

static

Definition at line 56 of file lb.c.

lb_dpo_gre4_ip6

const char* const lb_dpo_gre4_ip6[] = { "lb6-gre4" , NULL }

static

Definition at line 41 of file lb.c.

lb_dpo_gre4_ip6_port

const char* const lb_dpo_gre4_ip6_port[] = { "lb6-gre4-port" , NULL }

static

Definition at line 57 of file lb.c.

lb_dpo_gre4_nodes

const char* const* const lb_dpo_gre4_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_gre4_ip4,
        [DPO_PROTO_IP6]  = lb_dpo_gre4_ip6,
    }

Definition at line 42 of file lb.c.

lb_dpo_gre4_port_nodes

const char* const* const lb_dpo_gre4_port_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_gre4_ip4_port,
        [DPO_PROTO_IP6]  = lb_dpo_gre4_ip6_port,
    }

Definition at line 58 of file lb.c.

lb_dpo_gre6_ip4

const char* const lb_dpo_gre6_ip4[] = { "lb4-gre6" , NULL }

static

Definition at line 48 of file lb.c.

lb_dpo_gre6_ip4_port

const char* const lb_dpo_gre6_ip4_port[] = { "lb4-gre6-port" , NULL }

static

Definition at line 64 of file lb.c.

lb_dpo_gre6_ip6

const char* const lb_dpo_gre6_ip6[] = { "lb6-gre6" , NULL }

static

Definition at line 49 of file lb.c.

lb_dpo_gre6_ip6_port

const char* const lb_dpo_gre6_ip6_port[] = { "lb6-gre6-port" , NULL }

static

Definition at line 65 of file lb.c.

lb_dpo_gre6_nodes

const char* const* const lb_dpo_gre6_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_gre6_ip4,
        [DPO_PROTO_IP6]  = lb_dpo_gre6_ip6,
    }

Definition at line 50 of file lb.c.

lb_dpo_gre6_port_nodes

const char* const* const lb_dpo_gre6_port_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_gre6_ip4_port,
        [DPO_PROTO_IP6]  = lb_dpo_gre6_ip6_port,
    }

Definition at line 66 of file lb.c.

lb_dpo_l3dsr_ip4

const char* const lb_dpo_l3dsr_ip4[] = {"lb4-l3dsr" , NULL}

static

Definition at line 72 of file lb.c.

lb_dpo_l3dsr_ip4_port

const char* const lb_dpo_l3dsr_ip4_port[] = {"lb4-l3dsr-port" , NULL}

static

Definition at line 78 of file lb.c.

lb_dpo_l3dsr_nodes

const char* const* const lb_dpo_l3dsr_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_l3dsr_ip4,
    }

Definition at line 73 of file lb.c.

lb_dpo_l3dsr_port_nodes

const char* const* const lb_dpo_l3dsr_port_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_l3dsr_ip4_port,
    }

Definition at line 79 of file lb.c.

lb_dpo_nat4_ip4_port

const char* const lb_dpo_nat4_ip4_port[] = { "lb4-nat4-port" , NULL }

static

Definition at line 84 of file lb.c.

lb_dpo_nat4_port_nodes

const char* const* const lb_dpo_nat4_port_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_nat4_ip4_port,
    }

Definition at line 85 of file lb.c.

lb_dpo_nat6_ip6_port

const char* const lb_dpo_nat6_ip6_port[] = { "lb6-nat6-port" , NULL }

static

Definition at line 90 of file lb.c.

lb_dpo_nat6_port_nodes

const char* const* const lb_dpo_nat6_port_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP6]  = lb_dpo_nat6_ip6_port,
    }

Definition at line 91 of file lb.c.

lb_fib_src

fib_source_t lb_fib_src

static

Definition at line 30 of file lb.c.

lb_main

lb_main_t lb_main

Definition at line 32 of file lb.c.

lb_vip_type_strings

char* lb_vip_type_strings[]

static

Initial value:

= {
    [LB_VIP_TYPE_IP6_GRE6] = "ip6-gre6",
    [LB_VIP_TYPE_IP6_GRE4] = "ip6-gre4",
    [LB_VIP_TYPE_IP4_GRE6] = "ip4-gre6",
    [LB_VIP_TYPE_IP4_GRE4] = "ip4-gre4",
    [LB_VIP_TYPE_IP4_L3DSR] = "ip4-l3dsr",
    [LB_VIP_TYPE_IP4_NAT4] = "ip4-nat4",
    [LB_VIP_TYPE_IP6_NAT6] = "ip6-nat6",
}

Definition at line 124 of file lb.c.