Include dependency graph for fib_table.c:

Data Structures
struct	fib_table_set_flow_hash_config_ctx_t_
	Table set flow hash config context. More...

struct	fib_table_flush_ctx_t_
	Table flush context. More...

Typedefs
typedef struct fib_table_set_flow_hash_config_ctx_t_	fib_table_set_flow_hash_config_ctx_t
	Table set flow hash config context. More...

typedef struct fib_table_flush_ctx_t_	fib_table_flush_ctx_t
	Table flush context. More...

Functions
fib_table_t *	fib_table_get (fib_node_index_t index, fib_protocol_t proto)
	Get a pointer to a FIB table. More...

static fib_node_index_t	fib_table_lookup_i (fib_table_t fib_table, const fib_prefix_t prefix)

fib_node_index_t	fib_table_lookup (u32 fib_index, const fib_prefix_t *prefix)
	Perfom a longest prefix match in the non-forwarding table. More...

static fib_node_index_t	fib_table_lookup_exact_match_i (const fib_table_t fib_table, const fib_prefix_t prefix)

fib_node_index_t	fib_table_lookup_exact_match (u32 fib_index, const fib_prefix_t *prefix)
	Perfom an exact match in the non-forwarding table. More...

static fib_node_index_t	fib_table_get_less_specific_i (fib_table_t fib_table, const fib_prefix_t prefix)

fib_node_index_t	fib_table_get_less_specific (u32 fib_index, const fib_prefix_t *prefix)
	Get the less specific (covering) prefix. More...

static void	fib_table_entry_remove (fib_table_t fib_table, const fib_prefix_t prefix, fib_node_index_t fib_entry_index)

static void	fib_table_post_insert_actions (fib_table_t fib_table, const fib_prefix_t prefix, fib_node_index_t fib_entry_index)

static void	fib_table_entry_insert (fib_table_t fib_table, const fib_prefix_t prefix, fib_node_index_t fib_entry_index)

void	fib_table_fwding_dpo_update (u32 fib_index, const fib_prefix_t prefix, const dpo_id_t dpo)
	Add or update an entry in the FIB's forwarding table. More...

void	fib_table_fwding_dpo_remove (u32 fib_index, const fib_prefix_t prefix, const dpo_id_t dpo)
	remove an entry in the FIB's forwarding table More...

static void	fib_table_source_count_inc (fib_table_t *fib_table, fib_source_t source)

static void	fib_table_source_count_dec (fib_table_t *fib_table, fib_source_t source)

fib_node_index_t	fib_table_entry_special_dpo_add (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, const dpo_id_t dpo)
	Add a 'special' entry to the FIB that links to the DPO passed A special entry is an entry that the FIB is not expect to resolve via the usual mechanisms (i.e. More...

fib_node_index_t	fib_table_entry_special_dpo_update (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, const dpo_id_t dpo)
	Update a 'special' entry to the FIB that links to the DPO passed A special entry is an entry that the FIB is not expect to resolve via the usual mechanisms (i.e. More...

fib_node_index_t	fib_table_entry_special_add (u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags)
	Add a 'special' entry to the FIB. More...

void	fib_table_entry_special_remove (u32 fib_index, const fib_prefix_t *prefix, fib_source_t source)
	Remove a 'special' entry from the FIB. More...

static void	fib_table_route_path_fixup (const fib_prefix_t prefix, fib_entry_flag_t eflags, fib_route_path_t *path)
	fib_table_route_path_fixup More...

fib_node_index_t	fib_table_entry_path_add (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, dpo_proto_t next_hop_proto, const ip46_address_t next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, fib_mpls_label_t *next_hop_labels, fib_route_path_flags_t path_flags)
	Add one path to an entry (aka route) in the FIB. More...

static int	fib_route_path_cmp_for_sort (void v1, void v2)

fib_node_index_t	fib_table_entry_path_add2 (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, fib_route_path_t rpaths)
	Add n paths to an entry (aka route) in the FIB. More...

void	fib_table_entry_path_remove2 (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_route_path_t rpaths)
	Remove n paths to an entry (aka route) in the FIB. More...

void	fib_table_entry_path_remove (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, dpo_proto_t next_hop_proto, const ip46_address_t next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, fib_route_path_flags_t path_flags)
	remove one path to an entry (aka route) in the FIB. More...

fib_node_index_t	fib_table_entry_update (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, fib_route_path_t paths)
	Update an entry to have a new set of paths. More...

fib_node_index_t	fib_table_entry_update_one_path (u32 fib_index, const fib_prefix_t prefix, fib_source_t source, fib_entry_flag_t flags, dpo_proto_t next_hop_proto, const ip46_address_t next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, fib_mpls_label_t *next_hop_labels, fib_route_path_flags_t path_flags)
	Update the entry to have just one path. More...

static void	fib_table_entry_delete_i (u32 fib_index, fib_node_index_t fib_entry_index, const fib_prefix_t *prefix, fib_source_t source)

void	fib_table_entry_delete (u32 fib_index, const fib_prefix_t *prefix, fib_source_t source)
	Delete a FIB entry. More...

void	fib_table_entry_delete_index (fib_node_index_t fib_entry_index, fib_source_t source)
	Delete a FIB entry. More...

u32	fib_table_entry_get_stats_index (u32 fib_index, const fib_prefix_t *prefix)
	Return the stats index for a FIB entry. More...

fib_node_index_t	fib_table_entry_local_label_add (u32 fib_index, const fib_prefix_t *prefix, mpls_label_t label)
	Add a MPLS local label for the prefix/route. More...

void	fib_table_entry_local_label_remove (u32 fib_index, const fib_prefix_t *prefix, mpls_label_t label)
	remove a MPLS local label for the prefix/route. More...

u32	fib_table_get_index_for_sw_if_index (fib_protocol_t proto, u32 sw_if_index)
	Get the index of the FIB bound to the interface. More...

flow_hash_config_t	fib_table_get_flow_hash_config (u32 fib_index, fib_protocol_t proto)
	Get the flow hash configured used by the table. More...

flow_hash_config_t	fib_table_get_default_flow_hash_config (fib_protocol_t proto)
	Get the flow hash configured used by the protocol. More...

static fib_table_walk_rc_t	fib_table_set_flow_hash_config_cb (fib_node_index_t fib_entry_index, void *arg)

void	fib_table_set_flow_hash_config (u32 fib_index, fib_protocol_t proto, flow_hash_config_t hash_config)
	Set the flow hash configured used by the table. More...

u32	fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto, u32 sw_if_index)
	Get the Table-ID of the FIB bound to the interface. More...

u32	fib_table_get_table_id (u32 fib_index, fib_protocol_t proto)
	Get the Table-ID of the FIB from protocol and index. More...

u32	fib_table_find (fib_protocol_t proto, u32 table_id)
	Get the index of the FIB for a Table-ID. More...

static u32	fib_table_find_or_create_and_lock_i (fib_protocol_t proto, u32 table_id, fib_source_t src, const u8 *name)

u32	fib_table_find_or_create_and_lock (fib_protocol_t proto, u32 table_id, fib_source_t src)
	Get the index of the FIB for a Table-ID. More...

u32	fib_table_find_or_create_and_lock_w_name (fib_protocol_t proto, u32 table_id, fib_source_t src, const u8 *name)
	Get the index of the FIB for a Table-ID. More...

u32	fib_table_create_and_lock (fib_protocol_t proto, fib_source_t src, const char *const fmt,...)
	Create a new table with no table ID. More...

static void	fib_table_destroy (fib_table_t *fib_table)

void	fib_table_walk (u32 fib_index, fib_protocol_t proto, fib_table_walk_fn_t fn, void *ctx)
	Walk all entries in a FIB table N.B: This is NOT safe to deletes. More...

void	fib_table_sub_tree_walk (u32 fib_index, fib_protocol_t proto, const fib_prefix_t root, fib_table_walk_fn_t fn, void ctx)
	Walk all entries in a sub-tree FIB table. More...

static void	fib_table_lock_dec (fib_table_t *fib_table, fib_source_t source)

static void	fib_table_lock_inc (fib_table_t *fib_table, fib_source_t source)

void	fib_table_unlock (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Take a reference counting lock on the table. More...

void	fib_table_lock (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Release a reference counting lock on the table. More...

u32	fib_table_get_num_entries (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Return the number of entries in the FIB added by a given source. More...

u8 *	format_fib_table_name (u8 s, va_list ap)
	Format the description/name of the table. More...

u8 *	format_fib_table_flags (u8 s, va_list args)

static fib_table_walk_rc_t	fib_table_flush_cb (fib_node_index_t fib_entry_index, void *arg)

void	fib_table_flush (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Flush all entries from a table for the source. More...

static fib_table_walk_rc_t	fib_table_mark_cb (fib_node_index_t fib_entry_index, void *arg)

void	fib_table_mark (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Resync all entries from a table for the source this is the mark part of the mark and sweep algorithm. More...

static fib_table_walk_rc_t	fib_table_sweep_cb (fib_node_index_t fib_entry_index, void *arg)

void	fib_table_sweep (u32 fib_index, fib_protocol_t proto, fib_source_t source)
	Signal that the table has converged, i.e. More...

u8 *	format_fib_table_memory (u8 s, va_list args)
	format (display) the memory used by the FIB tables More...

Variables
static const char *	fib_table_flags_strings [] = FIB_TABLE_ATTRIBUTES

Typedef Documentation

◆ fib_table_flush_ctx_t

typedef struct fib_table_flush_ctx_t_ fib_table_flush_ctx_t

Table flush context.

Store the indicies of matching FIB entries that need to be removed.

◆ fib_table_set_flow_hash_config_ctx_t

typedef struct fib_table_set_flow_hash_config_ctx_t_ fib_table_set_flow_hash_config_ctx_t

Table set flow hash config context.

Function Documentation

◆ fib_route_path_cmp_for_sort()

static int fib_route_path_cmp_for_sort	(	void *	v1,
		void *	v2
	)

static

Definition at line 584 of file fib_table.c.

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◆ fib_table_create_and_lock()

u32 fib_table_create_and_lock	(	fib_protocol_t	proto,
		fib_source_t	source,
		const char *const	fmt,
			...
	)

Create a new table with no table ID.

This means it does not get added to the hash-table and so can only be found by using the index returned.

proto The protocol of the FIB (and thus the entries therein)

Parameters

fmt	A string to describe the table
source	The ID of the client/source.

Returns: fib_index The index of the FIB

Definition at line 1175 of file fib_table.c.

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◆ fib_table_destroy()

static void fib_table_destroy ( fib_table_t * fib_table )

static

Definition at line 1211 of file fib_table.c.

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◆ fib_table_entry_delete()

void fib_table_entry_delete	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source
	)

Delete a FIB entry.

If the entry has no more sources, then it is removed from the table.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to remove
source	The ID of the client/source adding the entry.

Definition at line 886 of file fib_table.c.

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◆ fib_table_entry_delete_i()

static void fib_table_entry_delete_i	(	u32	fib_index,
		fib_node_index_t	fib_entry_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source
	)

static

Definition at line 840 of file fib_table.c.

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◆ fib_table_entry_delete_index()

void fib_table_entry_delete_index	(	fib_node_index_t	entry_index,
		fib_source_t	source
	)

Delete a FIB entry.

If the entry has no more sources, then it is removed from the table.

Parameters

entry_index	The index of the FIB entry
source	The ID of the client/source adding the entry.

Definition at line 910 of file fib_table.c.

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◆ fib_table_entry_get_stats_index()

u32 fib_table_entry_get_stats_index	(	u32	fib_index,
		const fib_prefix_t *	prefix
	)

Return the stats index for a FIB entry.

Parameters

fib_index	The table's FIB index
prefix	The entry's prefix's

Definition at line 922 of file fib_table.c.

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◆ fib_table_entry_insert()

static void fib_table_entry_insert	(	fib_table_t *	fib_table,
		const fib_prefix_t *	prefix,
		fib_node_index_t	fib_entry_index
	)

static

Definition at line 218 of file fib_table.c.

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◆ fib_table_entry_local_label_add()

fib_node_index_t fib_table_entry_local_label_add	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		mpls_label_t	label
	)

Add a MPLS local label for the prefix/route.

If the entry does not exist, it will be created. In theory more than one local label can be added, but this is not yet supported.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to which to add the label
label	The MPLS label to add

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 930 of file fib_table.c.

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◆ fib_table_entry_local_label_remove()

void fib_table_entry_local_label_remove	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		mpls_label_t	label
	)

remove a MPLS local label for the prefix/route.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to which to add the label
label	The MPLS label to add

Definition at line 957 of file fib_table.c.

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◆ fib_table_entry_path_add()

fib_node_index_t fib_table_entry_path_add	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	flags,
		dpo_proto_t	next_hop_proto,
		const ip46_address_t *	next_hop,
		u32	next_hop_sw_if_index,
		u32	next_hop_fib_index,
		u32	next_hop_weight,
		fib_mpls_label_t *	next_hop_label_stack,
		fib_route_path_flags_t	pf
	)

Add one path to an entry (aka route) in the FIB.

If the entry does not exist, it will be created. See the documentation for fib_route_path_t for more descirptions of the path parameters.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.
flags	Flags for the entry.

next_hop_proto The protocol of the next hop. This cannot be derived in the event that the next hop is all zeros.

Parameters

next_hop	The address of the next-hop.
sw_if_index	The index of the interface.
next_hop_fib_index,The	fib index of the next-hop for recursive resolution
next_hop_weight	[un]equal cost path weight
next_hop_label_stack	The path's out-going label stack. NULL is there is none.
pf	Flags for the path

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 549 of file fib_table.c.

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◆ fib_table_entry_path_add2()

fib_node_index_t fib_table_entry_path_add2	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	flags,
		fib_route_path_t *	rpath
	)

Add n paths to an entry (aka route) in the FIB.

If the entry does not exist, it will be created. See the documentation for fib_route_path_t for more descirptions of the path parameters.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.
flags	Flags for the entry.
rpaths	A vector of paths. Not const since they may be modified.

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 591 of file fib_table.c.

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◆ fib_table_entry_path_remove()

void fib_table_entry_path_remove	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		dpo_proto_t	next_hop_proto,
		const ip46_address_t *	next_hop,
		u32	next_hop_sw_if_index,
		u32	next_hop_fib_index,
		u32	next_hop_weight,
		fib_route_path_flags_t	pf
	)

remove one path to an entry (aka route) in the FIB.

If this is the entry's last path, then the entry will be removed, unless it has other sources. See the documentation for fib_route_path_t for more descirptions of the path parameters.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.

next_hop_proto The protocol of the next hop. This cannot be derived in the event that the next hop is all zeros.

Parameters

next_hop	The address of the next-hop.
sw_if_index	The index of the interface.
next_hop_fib_index,The	fib index of the next-hop for recursive resolution
next_hop_weight	[un]equal cost path weight
pf	Flags for the path

Definition at line 722 of file fib_table.c.

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◆ fib_table_entry_path_remove2()

void fib_table_entry_path_remove2	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_route_path_t *	paths
	)

Remove n paths to an entry (aka route) in the FIB.

If this is the entry's last path, then the entry will be removed, unless it has other sources. See the documentation for fib_route_path_t for more descirptions of the path parameters.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.
rpaths	A vector of paths.

Definition at line 640 of file fib_table.c.

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◆ fib_table_entry_remove()

static void fib_table_entry_remove	(	fib_table_t *	fib_table,
		const fib_prefix_t *	prefix,
		fib_node_index_t	fib_entry_index
	)

static

Definition at line 142 of file fib_table.c.

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◆ fib_table_entry_special_add()

fib_node_index_t fib_table_entry_special_add	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	flags
	)

Add a 'special' entry to the FIB.

A special entry is an entry that the FIB is not expect to resolve via the usual mechanisms (i.e. recurisve or neighbour adj DB lookup). Instead the will link to a DPO valid for the source and/or the flags. This add is reference counting per-source. So n 'removes' are required for n 'adds', if the entry is no longer required. If the source needs to provide non-default forwarding use: fib_table_entry_special_dpo_add()

Parameters

fib_index	The index of the FIB
prefix	The prefix to add
source	The ID of the client/source adding the entry.
flags	Flags for the entry.

Returns: the index of the fib_entry_t that is created (or exists already).

Definition at line 405 of file fib_table.c.

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◆ fib_table_entry_special_dpo_add()

fib_node_index_t fib_table_entry_special_dpo_add	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	stype,
		const dpo_id_t *	dpo
	)

Add a 'special' entry to the FIB that links to the DPO passed A special entry is an entry that the FIB is not expect to resolve via the usual mechanisms (i.e.

recurisve or neighbour adj DB lookup). Instead the client/source provides the DPO to link to. This add is reference counting per-source. So n 'removes' are required for n 'adds', if the entry is no longer required.

Parameters

fib_index	The index of the FIB
prefix	The prefix to add
source	The ID of the client/source adding the entry.
flags	Flags for the entry.
dpo	The DPO to link to.

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 324 of file fib_table.c.

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◆ fib_table_entry_special_dpo_update()

fib_node_index_t fib_table_entry_special_dpo_update	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	stype,
		const dpo_id_t *	dpo
	)

Update a 'special' entry to the FIB that links to the DPO passed A special entry is an entry that the FIB is not expect to resolve via the usual mechanisms (i.e.

recurisve or neighbour adj DB lookup). Instead the client/source provides the DPO to link to. Special entries are add/remove reference counted per-source. So n 'removes' are required for n 'adds', if the entry is no longer required. An 'update' is an 'add' if no 'add' has already been called, otherwise an 'add' is therefore assumed to act on the reference instance of that add.

Parameters

fib_entry_index	The index of the FIB entry to update
source	The ID of the client/source adding the entry.
flags	Flags for the entry.
dpo	The DPO to link to.

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 363 of file fib_table.c.

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◆ fib_table_entry_special_remove()

void fib_table_entry_special_remove	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source
	)

Remove a 'special' entry from the FIB.

This add is reference counting per-source. So n 'removes' are required for n 'adds', if the entry is no longer required.

Parameters

fib_index	The index of the FIB
prefix	The prefix to remove
source	The ID of the client/source adding the entry.

Definition at line 424 of file fib_table.c.

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◆ fib_table_entry_update()

fib_node_index_t fib_table_entry_update	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	flags,
		fib_route_path_t *	paths
	)

Update an entry to have a new set of paths.

If the entry does not exist, it will be created. The difference between an 'path-add' and an update, is that path-add is an incremental addition of paths, whereas an update is a wholesale swap.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.
rpaths	A vector of paths. Not const since they may be modified.

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 756 of file fib_table.c.

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◆ fib_table_entry_update_one_path()

fib_node_index_t fib_table_entry_update_one_path	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		fib_source_t	source,
		fib_entry_flag_t	flags,
		dpo_proto_t	next_hop_proto,
		const ip46_address_t *	next_hop,
		u32	next_hop_sw_if_index,
		u32	next_hop_fib_index,
		u32	next_hop_weight,
		fib_mpls_label_t *	next_hop_label_stack,
		fib_route_path_flags_t	pf
	)

Update the entry to have just one path.

If the entry does not exist, it will be created. See the documentation for fib_route_path_t for more descirptions of the path parameters.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add
source	The ID of the client/source adding the entry.
flags	Flags for the entry.

next_hop_proto The protocol of the next hop. This cannot be derived in the event that the next hop is all zeros.

Parameters

next_hop	The address of the next-hop.
sw_if_index	The index of the interface.
next_hop_fib_index,The	fib index of the next-hop for recursive resolution
next_hop_weight	[un]equal cost path weight
next_hop_label_stack	The path's out-going label stack. NULL is there is none.
pf	Flags for the path

Returns: the index of the fib_entry_t that is created (or existed already).

Definition at line 805 of file fib_table.c.

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◆ fib_table_find()

u32 fib_table_find	(	fib_protocol_t	proto,
		u32	table_id
	)

Get the index of the FIB for a Table-ID.

This DOES NOT create the FIB if it does not exist.

proto The protocol of the FIB (and thus the entries therein)

Parameters

table-id The Table-ID

Returns: fib_index The index of the FIB, which may be INVALID.

Definition at line 1097 of file fib_table.c.

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◆ fib_table_find_or_create_and_lock()

u32 fib_table_find_or_create_and_lock	(	fib_protocol_t	proto,
		u32	table_id,
		fib_source_t	source
	)

Get the index of the FIB for a Table-ID.

This DOES create the FIB if it does not exist.

proto The protocol of the FIB (and thus the entries therein)

Parameters

table-id The Table-ID

Returns: fib_index The index of the FIB

Parameters

source The ID of the client/source.

Definition at line 1156 of file fib_table.c.

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◆ fib_table_find_or_create_and_lock_i()

static u32 fib_table_find_or_create_and_lock_i	(	fib_protocol_t	proto,
		u32	table_id,
		fib_source_t	src,
		const u8 *	name
	)

static

Definition at line 1113 of file fib_table.c.

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◆ fib_table_find_or_create_and_lock_w_name()

u32 fib_table_find_or_create_and_lock_w_name	(	fib_protocol_t	proto,
		u32	table_id,
		fib_source_t	source,
		const u8 *	name
	)

Get the index of the FIB for a Table-ID.

This DOES create the FIB if it does not exist.

proto The protocol of the FIB (and thus the entries therein)

Parameters

table-id The Table-ID

Returns: fib_index The index of the FIB

Parameters

source	The ID of the client/source.
name	The client is choosing the name they want the table to have

Definition at line 1165 of file fib_table.c.

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◆ fib_table_flush()

void fib_table_flush	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Flush all entries from a table for the source.

Parameters

fib_index The index of the FIB

proto The protocol of the entries in the table

Parameters

source the source to flush

Definition at line 1398 of file fib_table.c.

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◆ fib_table_flush_cb()

static fib_table_walk_rc_t fib_table_flush_cb	(	fib_node_index_t	fib_entry_index,
		void *	arg
	)

static

Definition at line 1385 of file fib_table.c.

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◆ fib_table_fwding_dpo_remove()

void fib_table_fwding_dpo_remove	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		const dpo_id_t *	dpo
	)

remove an entry in the FIB's forwarding table

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add/update
dpo	The data-path object to use for forwarding

Definition at line 280 of file fib_table.c.

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◆ fib_table_fwding_dpo_update()

void fib_table_fwding_dpo_update	(	u32	fib_index,
		const fib_prefix_t *	prefix,
		const dpo_id_t *	dpo
	)

Add or update an entry in the FIB's forwarding table.

This is called from the fib_entry code. It is not meant to be used by the client/source.

Parameters

fib_index	The index of the FIB
prefix	The prefix for the entry to add/update
dpo	The data-path object to use for forwarding

Definition at line 253 of file fib_table.c.

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◆ fib_table_get()

fib_table_t* fib_table_get	(	fib_node_index_t	index,
		fib_protocol_t	proto
	)

Get a pointer to a FIB table.

Definition at line 29 of file fib_table.c.

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◆ fib_table_get_default_flow_hash_config()

flow_hash_config_t fib_table_get_default_flow_hash_config ( fib_protocol_t proto )

Get the flow hash configured used by the protocol.

proto The protocol of the FIB (and thus the entries therein)

Returns: The flow hash config

Definition at line 1016 of file fib_table.c.

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◆ fib_table_get_flow_hash_config()

flow_hash_config_t fib_table_get_flow_hash_config	(	u32	fib_index,
		fib_protocol_t	proto
	)

Get the flow hash configured used by the table.

Parameters

fib_index The index of the FIB

proto The protocol the packets the flow hash will be calculated for.

Returns: The flow hash config

Definition at line 1005 of file fib_table.c.

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◆ fib_table_get_index_for_sw_if_index()

u32 fib_table_get_index_for_sw_if_index	(	fib_protocol_t	proto,
		u32	sw_if_index
	)

Get the index of the FIB bound to the interface.

proto The protocol of the FIB (and thus the entries therein)

Parameters

sw_if_index The interface index

Returns: fib_index The index of the FIB

Definition at line 989 of file fib_table.c.

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◆ fib_table_get_less_specific()

fib_node_index_t fib_table_get_less_specific	(	u32	fib_index,
		const fib_prefix_t *	prefix
	)

Get the less specific (covering) prefix.

Parameters

fib_index	The index of the FIB
prefix	The prefix to lookup

Returns: The index of the less specific fib_entry_t.

Definition at line 133 of file fib_table.c.

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◆ fib_table_get_less_specific_i()

static fib_node_index_t fib_table_get_less_specific_i	(	fib_table_t *	fib_table,
		const fib_prefix_t *	prefix
	)

static

Definition at line 106 of file fib_table.c.

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◆ fib_table_get_num_entries()

u32 fib_table_get_num_entries	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Return the number of entries in the FIB added by a given source.

Parameters

fib_index The index of the FIB

proto The protocol of the FIB (and thus the entries therein)

Returns: number of sourced entries.

Definition at line 1322 of file fib_table.c.

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◆ fib_table_get_table_id()

u32 fib_table_get_table_id	(	u32	fib_index,
		fib_protocol_t	proto
	)

Get the Table-ID of the FIB from protocol and index.

Parameters

fib_index The FIB index

proto The protocol of the FIB (and thus the entries therein)

Returns: fib_index The tableID of the FIB

Definition at line 1086 of file fib_table.c.

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◆ fib_table_get_table_id_for_sw_if_index()

u32 fib_table_get_table_id_for_sw_if_index	(	fib_protocol_t	proto,
		u32	sw_if_index
	)

Get the Table-ID of the FIB bound to the interface.

proto The protocol of the FIB (and thus the entries therein)

Parameters

sw_if_index The interface index

Returns: fib_index The tableID of the FIB

Definition at line 1073 of file fib_table.c.

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◆ fib_table_lock()

void fib_table_lock	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Release a reference counting lock on the table.

When the last lock has gone. the FIB is deleted.

Parameters

fib_index The index of the FIB

proto The protocol of the FIB (and thus the entries therein)

Parameters

source The ID of the client/source.

Definition at line 1310 of file fib_table.c.

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◆ fib_table_lock_dec()

static void fib_table_lock_dec	(	fib_table_t *	fib_table,
		fib_source_t	source
	)

static

Definition at line 1270 of file fib_table.c.

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◆ fib_table_lock_inc()

static void fib_table_lock_inc	(	fib_table_t *	fib_table,
		fib_source_t	source
	)

static

Definition at line 1280 of file fib_table.c.

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◆ fib_table_lookup()

fib_node_index_t fib_table_lookup	(	u32	fib_index,
		const fib_prefix_t *	prefix
	)

Perfom a longest prefix match in the non-forwarding table.

Parameters

fib_index	The index of the FIB
prefix	The prefix to lookup

Returns: The index of the fib_entry_t for the best match, which may be the default route

Definition at line 68 of file fib_table.c.

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◆ fib_table_lookup_exact_match()

fib_node_index_t fib_table_lookup_exact_match	(	u32	fib_index,
		const fib_prefix_t *	prefix
	)

Perfom an exact match in the non-forwarding table.

Parameters

fib_index	The index of the FIB
prefix	The prefix to lookup

Returns: The index of the fib_entry_t for the exact match, or INVALID is there is no match.

Definition at line 97 of file fib_table.c.

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◆ fib_table_lookup_exact_match_i()

static fib_node_index_t fib_table_lookup_exact_match_i	(	const fib_table_t *	fib_table,
		const fib_prefix_t *	prefix
	)

inlinestatic

Definition at line 75 of file fib_table.c.

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◆ fib_table_lookup_i()

static fib_node_index_t fib_table_lookup_i	(	fib_table_t *	fib_table,
		const fib_prefix_t *	prefix
	)

inlinestatic

Definition at line 46 of file fib_table.c.

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◆ fib_table_mark()

void fib_table_mark	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Resync all entries from a table for the source this is the mark part of the mark and sweep algorithm.

All entries in this FIB that are sourced by 'source' are marked as stale.

Parameters

fib_index The index of the FIB

proto The protocol of the entries in the table

Parameters

source the source to flush

Definition at line 1434 of file fib_table.c.

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◆ fib_table_mark_cb()

static fib_table_walk_rc_t fib_table_mark_cb	(	fib_node_index_t	fib_entry_index,
		void *	arg
	)

static

Definition at line 1421 of file fib_table.c.

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◆ fib_table_post_insert_actions()

static void fib_table_post_insert_actions	(	fib_table_t *	fib_table,
		const fib_prefix_t *	prefix,
		fib_node_index_t	fib_entry_index
	)

static

Definition at line 173 of file fib_table.c.

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◆ fib_table_route_path_fixup()

static void fib_table_route_path_fixup	(	const fib_prefix_t *	prefix,
		fib_entry_flag_t *	eflags,
		fib_route_path_t *	path
	)

static

fib_table_route_path_fixup

Convert attached hosts to attached next-hops.

This special case is required because an attached path will link to a glean, and the FIB entry will have the interface or API/CLI source. When the ARP/ND process is completes then that source (which will provide a complete adjacency) will be lower priority and so the FIB entry will remain linked to a glean and traffic will never reach the hosts. For an ATTAHCED_HOST path we can link the path directly to the [incomplete] adjacency.

Definition at line 500 of file fib_table.c.

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◆ fib_table_set_flow_hash_config()

void fib_table_set_flow_hash_config	(	u32	fib_index,
		fib_protocol_t	proto,
		flow_hash_config_t	hash_config
	)

Set the flow hash configured used by the table.

Parameters

fib_index The index of the FIB

proto The protocol of the FIB (and thus the entries therein)

Parameters

hash_config The flow-hash config to set

Returns: none

Definition at line 1055 of file fib_table.c.

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◆ fib_table_set_flow_hash_config_cb()

static fib_table_walk_rc_t fib_table_set_flow_hash_config_cb	(	fib_node_index_t	fib_entry_index,
		void *	arg
	)

static

Definition at line 1044 of file fib_table.c.

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◆ fib_table_source_count_dec()

static void fib_table_source_count_dec	(	fib_table_t *	fib_table,
		fib_source_t	source
	)

static

Definition at line 316 of file fib_table.c.

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◆ fib_table_source_count_inc()

static void fib_table_source_count_inc	(	fib_table_t *	fib_table,
		fib_source_t	source
	)

static

Definition at line 308 of file fib_table.c.

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◆ fib_table_sub_tree_walk()

void fib_table_sub_tree_walk	(	u32	fib_index,
		fib_protocol_t	proto,
		const fib_prefix_t *	root,
		fib_table_walk_fn_t	fn,
		void *	ctx
	)

Walk all entries in a sub-tree FIB table.

The 'root' paraneter is the prefix at the root of the sub-tree. N.B: This is NOT safe to deletes. If you need to delete walk the whole table and store elements in a vector, then delete the elements

Definition at line 1250 of file fib_table.c.

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◆ fib_table_sweep()

void fib_table_sweep	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Signal that the table has converged, i.e.

all updates are complete. this is the sweep part of the mark and sweep algorithm. All entries in this FIB that are sourced by 'source' and marked as stale are flushed.

Parameters

fib_index The index of the FIB

proto The protocol of the entries in the table

Parameters

source the source to flush

Definition at line 1467 of file fib_table.c.

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◆ fib_table_sweep_cb()

static fib_table_walk_rc_t fib_table_sweep_cb	(	fib_node_index_t	fib_entry_index,
		void *	arg
	)

static

Definition at line 1454 of file fib_table.c.

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◆ fib_table_unlock()

void fib_table_unlock	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_source_t	source
	)

Take a reference counting lock on the table.

Parameters

fib_index The index of the FIB

proto The protocol of the FIB (and thus the entries therein)

Parameters

source The ID of the client/source.

Definition at line 1291 of file fib_table.c.

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◆ fib_table_walk()

void fib_table_walk	(	u32	fib_index,
		fib_protocol_t	proto,
		fib_table_walk_fn_t	fn,
		void *	ctx
	)

Walk all entries in a FIB table N.B: This is NOT safe to deletes.

If you need to delete walk the whole table and store elements in a vector, then delete the elements

Definition at line 1230 of file fib_table.c.

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◆ format_fib_table_flags()

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

Definition at line 1348 of file fib_table.c.

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◆ format_fib_table_memory()

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

format (display) the memory used by the FIB tables

Definition at line 1494 of file fib_table.c.

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◆ format_fib_table_name()

u8* format_fib_table_name	(	u8 *	s,
		va_list *	ap
	)

Format the description/name of the table.

Definition at line 1334 of file fib_table.c.

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Variable Documentation

◆ fib_table_flags_strings

const char* fib_table_flags_strings[] = FIB_TABLE_ATTRIBUTES

static

Definition at line 26 of file fib_table.c.

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

◆ fib_table_flush_ctx_t

◆ fib_table_set_flow_hash_config_ctx_t

Function Documentation

◆ fib_route_path_cmp_for_sort()

◆ fib_table_create_and_lock()

◆ fib_table_destroy()

◆ fib_table_entry_delete()

◆ fib_table_entry_delete_i()

◆ fib_table_entry_delete_index()

◆ fib_table_entry_get_stats_index()

◆ fib_table_entry_insert()

◆ fib_table_entry_local_label_add()

◆ fib_table_entry_local_label_remove()

◆ fib_table_entry_path_add()

◆ fib_table_entry_path_add2()

◆ fib_table_entry_path_remove()

◆ fib_table_entry_path_remove2()

◆ fib_table_entry_remove()

◆ fib_table_entry_special_add()

◆ fib_table_entry_special_dpo_add()

◆ fib_table_entry_special_dpo_update()

◆ fib_table_entry_special_remove()

◆ fib_table_entry_update()

◆ fib_table_entry_update_one_path()

◆ fib_table_find()

◆ fib_table_find_or_create_and_lock()

◆ fib_table_find_or_create_and_lock_i()

◆ fib_table_find_or_create_and_lock_w_name()

◆ fib_table_flush()

◆ fib_table_flush_cb()

◆ fib_table_fwding_dpo_remove()

◆ fib_table_fwding_dpo_update()

◆ fib_table_get()

◆ fib_table_get_default_flow_hash_config()

◆ fib_table_get_flow_hash_config()

◆ fib_table_get_index_for_sw_if_index()

◆ fib_table_get_less_specific()

◆ fib_table_get_less_specific_i()

◆ fib_table_get_num_entries()

◆ fib_table_get_table_id()

◆ fib_table_get_table_id_for_sw_if_index()

◆ fib_table_lock()

◆ fib_table_lock_dec()

◆ fib_table_lock_inc()

◆ fib_table_lookup()

◆ fib_table_lookup_exact_match()

◆ fib_table_lookup_exact_match_i()

◆ fib_table_lookup_i()

◆ fib_table_mark()

◆ fib_table_mark_cb()

◆ fib_table_post_insert_actions()

◆ fib_table_route_path_fixup()

◆ fib_table_set_flow_hash_config()

◆ fib_table_set_flow_hash_config_cb()

◆ fib_table_source_count_dec()

◆ fib_table_source_count_inc()

◆ fib_table_sub_tree_walk()

◆ fib_table_sweep()

◆ fib_table_sweep_cb()

◆ fib_table_unlock()

◆ fib_table_walk()

◆ format_fib_table_flags()

◆ format_fib_table_memory()

◆ format_fib_table_name()

Variable Documentation

◆ fib_table_flags_strings