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rte_rib6.h(3) DPDK rte_rib6.h(3)

NAME

rte_rib6.h

SYNOPSIS

#include <rte_memcpy.h>
#include <rte_common.h>

Data Structures


struct rte_rib6_conf

Enumerations


enum { RTE_RIB6_GET_NXT_ALL, RTE_RIB6_GET_NXT_COVER }

Functions


static void rte_rib6_copy_addr (uint8_t *dst, const uint8_t *src)
static int rte_rib6_is_equal (const uint8_t *ip1, const uint8_t *ip2)
static uint8_t get_msk_part (uint8_t depth, int byte)
struct rte_rib6_node * rte_rib6_lookup (struct rte_rib6 *rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE])
struct rte_rib6_node * rte_rib6_lookup_parent (struct rte_rib6_node *ent)
struct rte_rib6_node * rte_rib6_lookup_exact (struct rte_rib6 *rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)
struct rte_rib6_node * rte_rib6_get_nxt (struct rte_rib6 *rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth, struct rte_rib6_node *last, int flag)
void rte_rib6_remove (struct rte_rib6 *rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)
struct rte_rib6_node * rte_rib6_insert (struct rte_rib6 *rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)
int rte_rib6_get_ip (const struct rte_rib6_node *node, uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE])
int rte_rib6_get_depth (const struct rte_rib6_node *node, uint8_t *depth)
void * rte_rib6_get_ext (struct rte_rib6_node *node)
int rte_rib6_get_nh (const struct rte_rib6_node *node, uint64_t *nh)
int rte_rib6_set_nh (struct rte_rib6_node *node, uint64_t nh)
struct rte_rib6 * rte_rib6_create (const char *name, int socket_id, const struct rte_rib6_conf *conf)
struct rte_rib6 * rte_rib6_find_existing (const char *name)
void rte_rib6_free (struct rte_rib6 *rib)

Detailed Description

RTE rib6 library.

Level compressed tree implementation for IPv6 Longest Prefix Match

Definition in file rte_rib6.h.

Enumeration Type Documentation

anonymous enum

rte_rib6_get_nxt() flags

Enumerator

flag to get all subroutes in a RIB tree
flag to get first matched subroutes in a RIB tree

Definition at line 29 of file rte_rib6.h.

Function Documentation

static void rte_rib6_copy_addr (uint8_t * dst, const uint8_t * src) [inline], [static]

Copy IPv6 address from one location to another

Parameters

dst pointer to the place to copy
src pointer from where to copy

Definition at line 60 of file rte_rib6.h.

static int rte_rib6_is_equal (const uint8_t * ip1, const uint8_t * ip2) [inline], [static]

Compare two IPv6 addresses

Parameters

ip1 pointer to the first ipv6 address
ip2 pointer to the second ipv6 address

Returns

1 if equal 0 otherwise

Definition at line 80 of file rte_rib6.h.

static uint8_t get_msk_part (uint8_t depth, int byte) [inline], [static]

Get 8-bit part of 128-bit IPv6 mask

Parameters

depth ipv6 prefix length
byte position of a 8-bit chunk in the 128-bit mask

Returns

8-bit chunk of the 128-bit IPv6 mask

Definition at line 104 of file rte_rib6.h.

struct rte_rib6_node* rte_rib6_lookup (struct rte_rib6 * rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE])

Lookup an IP into the RIB structure

Parameters

rib RIB object handle
ip IP to be looked up in the RIB

Returns

pointer to struct rte_rib6_node on success NULL otherwise

struct rte_rib6_node* rte_rib6_lookup_parent (struct rte_rib6_node * ent)

Lookup less specific route into the RIB structure

Parameters

ent Pointer to struct rte_rib6_node that represents target route

Returns

pointer to struct rte_rib6_node that represents less specific route on success NULL otherwise

struct rte_rib6_node* rte_rib6_lookup_exact (struct rte_rib6 * rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)

Provides exact mach lookup of the prefix into the RIB structure

Parameters

rib RIB object handle
ip net to be looked up in the RIB
depth prefix length

Returns

pointer to struct rte_rib6_node on success NULL otherwise

struct rte_rib6_node* rte_rib6_get_nxt (struct rte_rib6 * rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth, struct rte_rib6_node * last, int flag)

Retrieve next more specific prefix from the RIB that is covered by ip/depth supernet in an ascending order

Parameters

rib RIB object handle
ip net address of supernet prefix that covers returned more specific prefixes
depth supernet prefix length
last pointer to the last returned prefix to get next prefix or NULL to get first more specific prefix
flag -RTE_RIB6_GET_NXT_ALL get all prefixes from subtrie -RTE_RIB6_GET_NXT_COVER get only first more specific prefix even if it have more specifics

Returns

pointer to the next more specific prefix NULL if there is no prefixes left

void rte_rib6_remove (struct rte_rib6 * rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)

Remove prefix from the RIB

Parameters

rib RIB object handle
ip net to be removed from the RIB
depth prefix length

struct rte_rib6_node* rte_rib6_insert (struct rte_rib6 * rib, const uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE], uint8_t depth)

Insert prefix into the RIB

Parameters

rib RIB object handle
ip net to be inserted to the RIB
depth prefix length

Returns

pointer to new rte_rib6_node on success NULL otherwise

int rte_rib6_get_ip (const struct rte_rib6_node * node, uint8_t ip[RTE_RIB6_IPV6_ADDR_SIZE])

Get an ip from rte_rib6_node

Parameters

node pointer to the rib6 node
ip pointer to the ipv6 to save

Returns

0 on success -1 on failure with rte_errno indicating reason for failure.

int rte_rib6_get_depth (const struct rte_rib6_node * node, uint8_t * depth)

Get a depth from rte_rib6_node

Parameters

node pointer to the rib6 node
depth pointer to the depth to save

Returns

0 on success -1 on failure with rte_errno indicating reason for failure.

void* rte_rib6_get_ext (struct rte_rib6_node * node)

Get ext field from the rte_rib6_node It is caller responsibility to make sure there are necessary space for the ext field inside rib6 node.

Parameters

node pointer to the rte_rib6_node

Returns

pointer to the ext

int rte_rib6_get_nh (const struct rte_rib6_node * node, uint64_t * nh)

Get nexthop from the rte_rib6_node

Parameters

node pointer to the rib6 node
nh pointer to the nexthop to save

Returns

0 on success -1 on failure, with rte_errno indicating reason for failure.

int rte_rib6_set_nh (struct rte_rib6_node * node, uint64_t nh)

Set nexthop into the rte_rib6_node

Parameters

node pointer to the rib6 node
nh nexthop value to set to the rib6 node

Returns

0 on success -1 on failure, with rte_errno indicating reason for failure.

struct rte_rib6* rte_rib6_create (const char * name, int socket_id, const struct rte_rib6_conf * conf)

Create RIB

Parameters

name RIB name
socket_id NUMA socket ID for RIB table memory allocation
conf Structure containing the configuration

Returns

Pointer to RIB object on success NULL otherwise with rte_errno indicating reason for failure.

struct rte_rib6* rte_rib6_find_existing (const char * name)

Find an existing RIB object and return a pointer to it.

Parameters

name Name of the rib object as passed to rte_rib6_create()

Returns

Pointer to RIB object on success NULL otherwise with rte_errno indicating reason for failure.

void rte_rib6_free (struct rte_rib6 * rib)

Free an RIB object.

Parameters

rib RIB object handle created with rte_rib6_create(). If rib is NULL, no operation is performed.

Author

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Fri Dec 15 2023 Version 23.11.0