common

package
v1.7.16 Latest Latest
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Published: Apr 20, 2021 License: Apache-2.0 Imports: 9 Imported by: 0

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Constants

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const (

	// OperationalPath is the base path to store the operational details in the kvstore.
	OperationalPath = "cilium-net/operational"

	// ServicesKeyPath is the base path where services are stored in the kvstore.
	ServicesKeyPath = OperationalPath + "/ServicesV2/SHA256SUMServices"
	// ServicePathV1 is the base path for the services stored in the kvstore.
	ServicePathV1 = OperationalPath + "/Services/"

	// NodeConfigFile is the name of the C header which contains the node's
	// network parameters.
	NodeConfigFile = "node_config.h"
	// CHeaderFileName is the name of the C header file for BPF programs for a
	// particular endpoint.
	CHeaderFileName = "lxc_config.h"
	// NetdevHeaderFileName is the name of the header file used for bpf_netdev.c and bpf_overlay.c.
	NetdevHeaderFileName = "netdev_config.h"
	// PreFilterHeaderFileName is the name of the header file used for bpf_xdp.c.
	PreFilterHeaderFileName = "filter_config.h"
	// CiliumCHeaderPrefix is the prefix using when printing/writing an endpoint in a
	// base64 form.
	CiliumCHeaderPrefix = "CILIUM_BASE64_"

	// PossibleCPUSysfsPath is used to retrieve the number of CPUs for per-CPU maps.
	PossibleCPUSysfsPath = "/sys/devices/system/cpu/possible"
)

Variables

This section is empty.

Functions

func C2GoArray added in v1.5.0

func C2GoArray(str string) []byte

C2GoArray transforms an hexadecimal string representation into a byte slice. Example: str := "0x12, 0xff, 0x0, 0x1" fmt.Print(C2GoArray(str)) //`{0x12, 0xFF, 0x0, 0x01}`"

func FindEPConfigCHeader

func FindEPConfigCHeader(basePath string, epFiles []os.FileInfo) string

FindEPConfigCHeader returns the full path of the file that is the CHeaderFileName from the slice of files

func GetCiliumVersionString

func GetCiliumVersionString(epCHeaderFilePath string) (string, error)

GetCiliumVersionString returns the first line containing CiliumCHeaderPrefix.

func GetNumPossibleCPUs added in v1.7.6

func GetNumPossibleCPUs(log *logrus.Entry) int

GetNumPossibleCPUs returns a total number of possible CPUS, i.e. CPUs that have been allocated resources and can be brought online if they are present. The number is retrieved by parsing /sys/device/system/cpu/possible.

See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/cpumask.h?h=v4.19#n50 for more details.

func MapStringStructToSlice added in v1.5.1

func MapStringStructToSlice(m map[string]struct{}) []string

MapStringStructToSlice returns a slice with all keys of the given map[string]struct{}

func MoveNewFilesTo added in v1.5.0

func MoveNewFilesTo(oldDir, newDir string) error

MoveNewFilesTo copies all files, that do not exist in newDir, from oldDir.

func RequireRootPrivilege added in v0.9.0

func RequireRootPrivilege(cmd string)

RequireRootPrivilege checks if the user running cmd is root. If not, it exits the program

Types

This section is empty.

Directories

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