intf

Base interface types.

A base interface contains non-media or interface type specific information. Also included in this module is the interface ID type intf_id_t, used to uniquely identify any interface in the system of any type, as well as common enumerates.

namespace eos

class intf_handler

#include <intf.h>

This class receives changes to base interface attributes.

Public Functions

intf_handler(intf_mgr *)

intf_mgr * get_intf_mgr() const

void watch_all_intfs(bool)

Registers this class to receive change updates on the interface.

Expects a boolean signifying whether notifications should be propagated to this instance or not.

void watch_intf(intf_id_t, bool)

Registers this class to receive change updates on the given interface.

Expects the id of the corresponding interface and a boolean signifying whether notifications should be propagated to this instance or not.

virtual void on_intf_create(intf_id_t)

Handler called when a new interface is created.

After on_intf_create is called, the given intf_id is guaranteed to exist (ie intf_mgr::exists will return true). At that point, the intf_id can be used will all methods of the intf_mgr class.

This also means that the intf_id can be used with all other relevant *intf_mgr classes (ie eth_intf_mgr, eth_phy_intf_mgr, eth_lag_intf_mgr, and subintf_mgr as appropriate based on the intf_type).

virtual void on_intf_delete(intf_id_t)

Handler called when an interface has been removed.

After on_intf_delete is called, the given intf_id is guaranteed to not exist (ie intf_mgr::exists will return false). At that point, the intf_id cannot be used will any methods in the intf_mgr class.

This also means that the intf_id can no longer be used with all other relevant *intf_mgr classes (ie eth_intf_mgr, eth_phy_intf_mgr, eth_lag_intf_mgr, and subintf_mgr as appropriate based on the intf_type).

virtual void on_oper_status(intf_id_t, oper_status_t)

Handler called when the operational status of an interface changes.

Note that for physical interfaces, the on_oper_status handler will get called with INTF_OPER_NULL when the underlying hardware for that physical interface is removed.

virtual void on_admin_enabled(intf_id_t, bool)

Handler called after an interface has been configured to be enabled.

virtual void on_intf_description(intf_id_t, const std::string &)

Handler called when the configured description of an interface changes.

class intf_iter_t

#include <intf.h>

An interface iterator.

Private Functions

intf_iter_t(intf_iter_impl * const)

Friends

friend class intf_iter_impl

class intf_mgr

#include <intf.h>

The interface manager. This class inspects and configures base interface attributes.

Public Functions

virtual ~intf_mgr()

virtual intf_iter_t intf_iter() const = 0

Iterates over all interfaces currently available in the system.

virtual bool exists(intf_id_t) const = 0

Returns whether the given interface exists.

If exists returns true, then this intf_id_t can be successfully passed into every method of the intf_mgr. If not, then methods of the intf_mgr can throw a no_such_interface_error exception.

The exists method of all *intf_mgr classes that manage a given interface (ie intf_mgr, eth_intf_mgr, eth_phy_intf_mgr, eth_lag_intf_mgr, and/or subintf_mgr) are all guaranteed to return the same result.

virtual std::string kernel_intf_name(intf_id_t) const = 0

Given an intf_id_t, returns the kernel interface name (as a string). Returns an empty string if matching kernel interface is not found.

virtual intf_id_t eos_intf_name(std::string) const = 0

Given a kernel interface name string, return the EOS interface as an intf_id_t. Returns an empty intf_id_t() if matching EOS interface is not found.

virtual bool admin_enabled(intf_id_t) const = 0

Returns true if the given interface is configured to be enabled.

virtual void admin_enabled_is(intf_id_t, bool) = 0

Configures the enabled status of the interface.

virtual std::string description(intf_id_t) const = 0

Returns the configured description of the given interface.

virtual void description_is(intf_id_t, char const *) = 0

Configure the description of the given interface. Creates a copy of the passed in string description.

virtual void description_is(intf_id_t, const std::string &) = 0

Configure the description of the given interface.

virtual oper_status_t oper_status(intf_id_t) const = 0

Inspects the current operational status of the given interface.

Protected Functions

intf_mgr()

Private Members

intf_mgr

Friends

friend class intf_handler

class intf_counter_mgr

#include <intf.h>

The interface counter manager. This class inspects base interface counters and statistics.

Public Functions

virtual ~intf_counter_mgr()

virtual intf_counters_t counters(intf_id_t) const = 0

Get the current counters of the given interface.

virtual intf_traffic_rates_t traffic_rates(intf_id_t) const = 0

Get the current traffic rates of the given interface.

Protected Functions

intf_counter_mgr()

Private Members

intf_counter_mgr

Type definitions in intf

namespace eos

Enums

oper_status_t enum

The operational status of an interface.

Values:

• INTF_OPER_NULL -
• INTF_OPER_UP -
• INTF_OPER_DOWN -

intf_type_t enum

The interface’s type.

Values:

• INTF_TYPE_NULL -
• INTF_TYPE_OTHER -
• INTF_TYPE_ETH -
• INTF_TYPE_VLAN -
• INTF_TYPE_MANAGEMENT -
• INTF_TYPE_LOOPBACK -
• INTF_TYPE_LAG -
• INTF_TYPE_NULL0 -
• INTF_TYPE_CPU -
• INTF_TYPE_VXLAN -

class intf_id_t

#include <intf.h>

Unique identifier for an interface.

Public Functions

intf_id_t()

Default constructor.

intf_id_t(char const * name)

Constructor based on an interface name, i.e. ‘Ethernet3/1’, or ‘Management1’.

intf_id_t(std::string const & name)

Constructor based on an interface name, i.e. ‘Ethernet3/1’, or ‘Management1’.

intf_id_t(uint64_t id)

Constructor based on internal id representation, not part of the public API.

bool is_null0() const

Returns true if the interface is Null0.

bool is_subintf() const

Returns true if the interface is a subinterface.

intf_type_t intf_type() const

Returns the interface’s type.

std::string to_string() const

Returns the interface name as a string, e.g., ‘Ethernet3/1’.

bool operator!() const

Only the ‘default interface’ provided by the default constructor evaluates to false.

bool operator==(intf_id_t const & other) const

bool operator!=(intf_id_t const & other) const

bool operator<(intf_id_t const & other) const

uint32_t hash() const

The hash function for type intf_id_t.

void mix_me(hash_mix & h) const

The hash mix function for type intf_id_t.

Private Members

uint64_t intfId_

Friends

friend struct IntfIdHelper

friend std::ostream & operator<<

A utility stream operator that adds a string representation of intf_id_t to the ostream.

class intf_counters_t

#include <intf.h>

Interface counter class.

All of these attributes have the same meanings as the corresponding objects in the Interface MIB (RFC 2863, ‘IF-MIB’).

Public Functions

intf_counters_t()

intf_counters_t(uint64_t out_ucast_pkts, uint64_t out_multicast_pkts, uint64_t out_broadcast_pkts, uint64_t in_ucast_pkts, uint64_t in_multicast_pkts, uint64_t in_broadcast_pkts, uint64_t out_octets, uint64_t in_octets, uint64_t out_discards, uint64_t out_errors, uint64_t in_discards, uint64_t in_errors, seconds_t sample_time)

intf_counters_t(const intf_counters_t & other)

intf_counters_t & operator=(intf_counters_t const & other)

uint64_t out_ucast_pkts() const

Getter for ‘out_ucast_pkts’: IF-MIB ifOutUcastPkts. Note that IF-MIB specifies that ifOutUcastPkts should include packets that were dropped due to excessive collisions, as if they were successfully transmitted. We count these as out_errors.

uint64_t out_multicast_pkts() const

Getter for ‘out_multicast_pkts’: IF-MIB ifOutMulticastPkts counter.

uint64_t out_broadcast_pkts() const

Getter for ‘out_broadcast_pkts’: IF-MIB ifOutBroadcastPkts counter.

uint64_t in_ucast_pkts() const

Getter for ‘in_ucast_pkts’: IF-MIB ifInUcastPkts.

uint64_t in_multicast_pkts() const

Getter for ‘in_multicast_pkts’: IF-MIB ifInMulticastPkts counter.

uint64_t in_broadcast_pkts() const

Getter for ‘in_broadcast_pkts’: IF-MIB ifInBroadcastPkts counter.

uint64_t out_octets() const

Getter for ‘out_octets’: IF-MIB ifOutOctets counter. Note that for Ethernet interfaces, the octet counters include the MAC header and FCS (but not the preamble or SFD). This is different to the IEEE 802.3 counters (which do not include MAC header and FCS). See RFC 3635.

uint64_t in_octets() const

Getter for ‘in_octets’: IF-MIB ifInOctets counter. Note that for Ethernet interfaces, the octet counters include the MAC header and FCS (but not the preamble or SFD). This is different to the IEEE 802.3 counters (which do not include MAC header and FCS). See RFC 3635.

uint64_t out_discards() const

Getter for ‘out_discards’: IF-MIB ifOutDiscards counter.

uint64_t out_errors() const

Getter for ‘out_errors’: IF-MIB ifOutErrors counter.

uint64_t in_discards() const

Getter for ‘in_discards’: IF-MIB ifInDiscards counter.

uint64_t in_errors() const

Getter for ‘in_errors’: IF-MIB ifInErrors counter. The IF-MIB specifies that CRC errors should not get counted at all!, and that inErrors should include IP header checksum errors. We do not do this. We count CRC errors as inErrors, and IP header checksum errors as good packets at this level (in_ucast_pkts).

seconds_t sample_time() const

Getter for ‘sample_time’: time when the counters were updated.

bool operator==(intf_counters_t const & other) const

bool operator!=(intf_counters_t const & other) const

uint32_t hash() const

The hash function for type intf_counters_t.

void mix_me(hash_mix & h) const

The hash mix function for type intf_counters_t.

std::string to_string() const

Returns a string representation of the current object’s values.

Private Members

std::shared_ptr< intf_counters_impl_t > pimpl

Friends

friend std::ostream & operator<<

A utility stream operator that adds a string representation of intf_counters_t to the ostream.

class intf_traffic_rates_t

#include <intf.h>

Interface traffic rates class.

Public Functions

intf_traffic_rates_t()

intf_traffic_rates_t(double out_pkts_rate, double in_pkts_rate, double out_bits_rate, double in_bits_rate, seconds_t sample_time)

intf_traffic_rates_t(const intf_traffic_rates_t & other)

intf_traffic_rates_t & operator=(intf_traffic_rates_t const & other)

double out_pkts_rate() const

Getter for ‘out_pkts_rate’: output packets per second.

double in_pkts_rate() const

Getter for ‘in_pkts_rate’: input packets per second.

double out_bits_rate() const

Getter for ‘out_bits_rate’: output bits per second.

double in_bits_rate() const

Getter for ‘in_bits_rate’: input bits per second.

seconds_t sample_time() const

Getter for ‘sample_time’: time when the rates were updated.

bool operator==(intf_traffic_rates_t const & other) const

bool operator!=(intf_traffic_rates_t const & other) const

uint32_t hash() const

The hash function for type intf_traffic_rates_t.

void mix_me(hash_mix & h) const

The hash mix function for type intf_traffic_rates_t.

std::string to_string() const

Returns a string representation of the current object’s values.

Private Members

std::shared_ptr< intf_traffic_rates_impl_t > pimpl

Friends

friend std::ostream & operator<<

A utility stream operator that adds a string representation of intf_traffic_rates_t to the ostream.

class no_such_interface_error

#include <intf.h>

Non-existent interface error.

Public Functions

no_such_interface_error(intf_id_t intf)

no_such_interface_error(std::string const & intfName)

virtual ~no_such_interface_error()

intf_id_t intf() const

virtual void raise() const

Throws this exception.

uint32_t hash() const

The hash function for type no_such_interface_error.

void mix_me(hash_mix & h) const

The hash mix function for type no_such_interface_error.

std::string to_string() const

Returns a string representation of the current object’s values.

Private Members

intf_id_t intf_

Friends

friend std::ostream & operator<<

A utility stream operator that adds a string representation of no_such_interface_error to the ostream.

class not_switchport_eligible_error

#include <intf.h>

Error of configuring an interface as a routed port that cannot be a routed port.

Public Functions

not_switchport_eligible_error(intf_id_t intf)

virtual ~not_switchport_eligible_error()

intf_id_t intf() const

virtual void raise() const

Throws this exception.

uint32_t hash() const

The hash function for type not_switchport_eligible_error.

void mix_me(hash_mix & h) const

The hash mix function for type not_switchport_eligible_error.

std::string to_string() const

Returns a string representation of the current object’s values.

Private Members

intf_id_t intf_

Friends

friend std::ostream & operator<<

A utility stream operator that adds a string representation of not_switchport_eligible_error to the ostream.