lb.c File Reference

Include dependency graph for lb.c:

Go to the source code of this file.

Data Structures
struct	lb_pseudorand_t

Macros
#define	LB_GARBAGE_RUN   60
#define	LB_CONCURRENCY_TIMEOUT   10
#define	lb_get_writer_lock()   do {} while(clib_atomic_test_and_set (lb_main.writer_lock))
#define	lb_put_writer_lock()   clib_atomic_release (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
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

#define LB_CONCURRENCY_TIMEOUT   10

Definition at line 26 of file lb.c.

#define LB_GARBAGE_RUN   60

Definition at line 23 of file lb.c.

#define lb_get_writer_lock

(

)

do {} while(clib_atomic_test_and_set (lb_main.writer_lock))

Definition at line 30 of file lb.c.

#define lb_put_writer_lock

(

)

clib_atomic_release (lb_main.writer_lock)

Definition at line 31 of file lb.c.

Function Documentation

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

Definition at line 183 of file lb.c.

Here is the call graph for this function:

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

Definition at line 1251 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 97 of file lb.c.

Here is the call graph for this function:

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

Definition at line 152 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 191 of file lb.c.

Here is the call graph for this function:

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

Definition at line 130 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 560 of file lb.c.

Here is the caller graph for this function:

static lb_as_t* lb_as_from_fib_node ( fib_node_t *  node )

static

Definition at line 1277 of file lb.c.

Here is the caller graph for this function:

static void lb_as_stack ( lb_as_t *  as )

static

Definition at line 1284 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 472 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void lb_dpo_lock ( dpo_id_t *  dpo )

static

Definition at line 1260 of file lb.c.

Here is the caller graph for this function:

static void lb_dpo_unlock ( dpo_id_t *  dpo )

static

Definition at line 1261 of file lb.c.

Here is the caller graph for this function:

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 1315 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static fib_node_t* lb_fib_node_get_node ( fib_node_index_t  index )

static

Definition at line 1264 of file lb.c.

Here is the caller graph for this function:

static void lb_fib_node_last_lock_gone ( fib_node_t *  node )

static

Definition at line 1272 of file lb.c.

Here is the caller graph for this function:

int lb_flush_vip_as	(	u32	vip_index,
		u32	as_index
	)

Definition at line 756 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

void lb_garbage_collection

(

)

Definition at line 353 of file lb.c.

Here is the caller graph for this function:

u32 lb_hash_time_now

(

vlib_main_t *

vm

)

Definition at line 92 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

clib_error_t* lb_init

(

vlib_main_t *

vm

)

Definition at line 1355 of file lb.c.

Here is the call graph for this function:

int lb_nat4_interface_add_del	(	u32	sw_if_index,
		int	is_del
	)

Definition at line 1322 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

int lb_nat6_interface_add_del	(	u32	sw_if_index,
		int	is_del
	)

Definition at line 1338 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 275 of file lb.c.

int lb_vip_add	(	lb_vip_add_args_t	args,
		u32 *	vip_index
	)

Definition at line 1040 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 889 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 579 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 957 of file lb.c.

Here is the caller graph for this function:

int lb_vip_del

(

u32

vip_index

)

Definition at line 1194 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 1007 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 847 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

Definition at line 790 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Del the VIP filter entry.

Definition at line 978 of file lb.c.

Here is the caller graph for this function:

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

Definition at line 549 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void lb_vip_garbage_collection ( lb_vip_t *  vip )

static

Definition at line 284 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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

static

Definition at line 533 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 542 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 492 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 525 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static int lb_vip_prefix_index_alloc ( lb_main_t *  lbm )

static

Definition at line 857 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static int lb_vip_prefix_index_free ( lb_main_t *  lbm, u32  instance  )

static

Definition at line 872 of file lb.c.

Here is the call graph for this function:

Here is the caller graph for this function:

static void lb_vip_update_new_flow_table ( lb_vip_t *  vip )

static

Definition at line 378 of file lb.c.

Here is the caller graph for this function:

uword unformat_lb_vip_type	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 140 of file lb.c.

Here is the call graph for this function:

VLIB_PLUGIN_REGISTER

(

)

Here is the caller graph for this function:

Variable Documentation

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

static

Definition at line 36 of file lb.c.

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

static

Definition at line 52 of file lb.c.

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

static

Definition at line 37 of file lb.c.

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

static

Definition at line 53 of file lb.c.

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 38 of file lb.c.

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 54 of file lb.c.

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

static

Definition at line 44 of file lb.c.

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

static

Definition at line 60 of file lb.c.

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

static

Definition at line 45 of file lb.c.

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

static

Definition at line 61 of file lb.c.

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 46 of file lb.c.

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 62 of file lb.c.

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

static

Definition at line 68 of file lb.c.

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

static

Definition at line 74 of file lb.c.

const char* const* const lb_dpo_l3dsr_nodes[DPO_PROTO_NUM]

static

Initial value:

=
    {
        [DPO_PROTO_IP4]  = lb_dpo_l3dsr_ip4,
    }

Definition at line 69 of file lb.c.

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 75 of file lb.c.

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

static

Definition at line 80 of file lb.c.

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 81 of file lb.c.

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

static

Definition at line 86 of file lb.c.

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 87 of file lb.c.

lb_main_t lb_main

Definition at line 28 of file lb.c.

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 120 of file lb.c.