Documentation
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Overview ¶
Package fragmap represents the BPF map used to associate datagram fragments to the L4 ports of the datagram they belong to, in order to retrieve the full 5-tuple necessary to do L4-based lookups. +groupName=maps
Index ¶
- Constants
- func InitMap4(registry *metrics.Registry, mapEntries int) error
- func InitMap6(registry *metrics.Registry, mapEntries int) error
- func OpenMap4(logger *slog.Logger) (*bpf.Map, error)
- func OpenMap6(logger *slog.Logger) (*bpf.Map, error)
- type FragmentKey4
- type FragmentKey6
- type FragmentValue4
- type FragmentValue6
Constants ¶
const ( // MapNameIPv4 is the name of the map used to retrieve L4 ports // associated to the datagram to which an IPv4 belongs. MapNameIPv4 = "cilium_ipv4_frag_datagrams" // MapNameIPv6 is the name of the map used to retrieve L4 ports // associated to the datagram to which an IPv6 belongs. MapNameIPv6 = "cilium_ipv6_frag_datagrams" )
Variables ¶
This section is empty.
Functions ¶
Types ¶
type FragmentKey4 ¶ added in v1.18.0
type FragmentKey4 struct {
DestAddr types.IPv4 `align:"daddr"`
SourceAddr types.IPv4 `align:"saddr"`
ID uint16 `align:"id"`
Proto uint8 `align:"proto"`
// contains filtered or unexported fields
}
FragmentKey4 must match 'struct ipv4_frag_id' in "bpf/lib/ipv4.h".
func (*FragmentKey4) NativeID ¶ added in v1.18.0
func (k *FragmentKey4) NativeID() uint16
func (*FragmentKey4) New ¶ added in v1.18.0
func (k *FragmentKey4) New() bpf.MapKey
func (*FragmentKey4) String ¶ added in v1.18.0
func (k *FragmentKey4) String() string
String converts the key into a human-readable string format.
type FragmentKey6 ¶ added in v1.18.0
type FragmentKey6 struct {
ID uint32 `align:"id"`
Proto uint8 `align:"proto"`
SourceAddr types.IPv6 `align:"saddr"`
DestAddr types.IPv6 `align:"daddr"`
// contains filtered or unexported fields
}
FragmentKey6 must match 'struct ipv6_frag_id' in "bpf/lib/ipv6.h".
func (*FragmentKey6) NativeID ¶ added in v1.18.0
func (k *FragmentKey6) NativeID() uint32
func (*FragmentKey6) New ¶ added in v1.18.0
func (k *FragmentKey6) New() bpf.MapKey
func (*FragmentKey6) String ¶ added in v1.18.0
func (k *FragmentKey6) String() string
String converts the key into a human-readable string format.
type FragmentValue4 ¶ added in v1.18.0
FragmentValue4 must match 'struct ipv4_frag_l4ports' in "bpf/lib/ipv4.h".
func (*FragmentValue4) New ¶ added in v1.18.0
func (v *FragmentValue4) New() bpf.MapValue
func (*FragmentValue4) String ¶ added in v1.18.0
func (v *FragmentValue4) String() string
String converts the value into a human-readable string format.
type FragmentValue6 ¶ added in v1.18.0
FragmentValue6 must match 'struct ipv6_frag_l4ports' in "bpf/lib/ipv4.h".
func (*FragmentValue6) New ¶ added in v1.18.0
func (v *FragmentValue6) New() bpf.MapValue
func (*FragmentValue6) String ¶ added in v1.18.0
func (v *FragmentValue6) String() string
String converts the value into a human-readable string format.
Source Files