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Vector Packet Processing
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()   do {} while(__sync_lock_test_and_set (lb_main.writer_lock, 1))
 
#define lb_put_writer_lock()   lb_main.writer_lock[0] = 0
 

Functions

static void lb_as_stack (lb_as_t *as)
 
u32 lb_hash_time_now (vlib_main_t *vm)
 
u8format_lb_main (u8 *s, va_list *args)
 
u8format_lb_vip_type (u8 *s, va_list *args)
 
uword unformat_lb_vip_type (unformat_input_t *input, va_list *args)
 
u8format_lb_vip (u8 *s, va_list *args)
 
u8format_lb_as (u8 *s, va_list *args)
 
u8format_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 ()
 
u8format_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_tlb_fib_node_get_node (fib_node_index_t index)
 
static void lb_fib_node_last_lock_gone (fib_node_t *node)
 
static lb_as_tlb_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_tlb_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(__sync_lock_test_and_set (lb_main.writer_lock, 1))

Definition at line 30 of file lb.c.

#define lb_put_writer_lock ( )    lb_main.writer_lock[0] = 0

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.

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u8* format_lb_dpo ( u8 s,
va_list *  va 
)

Definition at line 1245 of file lb.c.

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u8* format_lb_main ( u8 s,
va_list *  args 
)

Definition at line 97 of file lb.c.

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u8* format_lb_vip ( u8 s,
va_list *  args 
)

Definition at line 152 of file lb.c.

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u8* format_lb_vip_detailed ( u8 s,
va_list *  args 
)

Definition at line 191 of file lb.c.

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u8* format_lb_vip_type ( u8 s,
va_list *  args 
)

Definition at line 130 of file lb.c.

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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.

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static lb_as_t* lb_as_from_fib_node ( fib_node_t node)
static

Definition at line 1271 of file lb.c.

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static void lb_as_stack ( lb_as_t as)
static

Definition at line 1278 of file lb.c.

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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_addressIPv4 source address used for encapsulated traffic
ip6_addressIPv6 source address used for encapsulated traffic
Returns
0 on success. VNET_LB_ERR_XXX on error

Definition at line 472 of file lb.c.

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static void lb_dpo_lock ( dpo_id_t dpo)
static

Definition at line 1254 of file lb.c.

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static void lb_dpo_unlock ( dpo_id_t dpo)
static

Definition at line 1255 of file lb.c.

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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 1309 of file lb.c.

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static fib_node_t* lb_fib_node_get_node ( fib_node_index_t  index)
static

Definition at line 1258 of file lb.c.

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static void lb_fib_node_last_lock_gone ( fib_node_t node)
static

Definition at line 1266 of file lb.c.

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int lb_flush_vip_as ( u32  vip_index,
u32  as_index 
)

Definition at line 756 of file lb.c.

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void lb_garbage_collection ( )

Definition at line 353 of file lb.c.

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u32 lb_hash_time_now ( vlib_main_t vm)

Definition at line 92 of file lb.c.

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clib_error_t* lb_init ( vlib_main_t vm)

Definition at line 1349 of file lb.c.

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int lb_nat4_interface_add_del ( u32  sw_if_index,
int  is_del 
)

Definition at line 1316 of file lb.c.

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int lb_nat6_interface_add_del ( u32  sw_if_index,
int  is_del 
)

Definition at line 1332 of file lb.c.

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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 1035 of file lb.c.

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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.

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

Definition at line 579 of file lb.c.

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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.

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int lb_vip_del ( u32  vip_index)

Definition at line 1189 of file lb.c.

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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 1002 of file lb.c.

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

Definition at line 847 of file lb.c.

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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.

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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.

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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.

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static void lb_vip_garbage_collection ( lb_vip_t vip)
static

Definition at line 284 of file lb.c.

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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.

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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.

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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.

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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.

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static int lb_vip_prefix_index_alloc ( lb_main_t lbm)
static

Definition at line 857 of file lb.c.

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static int lb_vip_prefix_index_free ( lb_main_t lbm,
u32  instance 
)
static

Definition at line 872 of file lb.c.

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static void lb_vip_update_new_flow_table ( lb_vip_t vip)
static

Definition at line 378 of file lb.c.

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uword unformat_lb_vip_type ( unformat_input_t input,
va_list *  args 
)

Definition at line 140 of file lb.c.

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VLIB_PLUGIN_REGISTER ( )

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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:
=
{
}
static const char *const lb_dpo_gre4_ip4[]
Definition: lb.c:36
static const char *const lb_dpo_gre4_ip6[]
Definition: lb.c:37

Definition at line 38 of file lb.c.

const char* const* const lb_dpo_gre4_port_nodes[DPO_PROTO_NUM]
static
Initial value:
=
{
}
static const char *const lb_dpo_gre4_ip6_port[]
Definition: lb.c:53
static const char *const lb_dpo_gre4_ip4_port[]
Definition: lb.c:52

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:
=
{
}
static const char *const lb_dpo_gre6_ip4[]
Definition: lb.c:44
static const char *const lb_dpo_gre6_ip6[]
Definition: lb.c:45

Definition at line 46 of file lb.c.

const char* const* const lb_dpo_gre6_port_nodes[DPO_PROTO_NUM]
static
Initial value:
=
{
}
static const char *const lb_dpo_gre6_ip4_port[]
Definition: lb.c:60
static const char *const lb_dpo_gre6_ip6_port[]
Definition: lb.c:61

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:
=
{
}
static const char *const lb_dpo_l3dsr_ip4[]
Definition: lb.c:68

Definition at line 69 of file lb.c.

const char* const* const lb_dpo_l3dsr_port_nodes[DPO_PROTO_NUM]
static
Initial value:
=
{
}
static const char *const lb_dpo_l3dsr_ip4_port[]
Definition: lb.c:74

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:
=
{
}
static const char *const lb_dpo_nat4_ip4_port[]
Definition: lb.c:80

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:
=
{
}
static const char *const lb_dpo_nat6_ip6_port[]
Definition: lb.c:86

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:

Definition at line 120 of file lb.c.