From 6502dfe8f5b516a68e64a13b976838f93d292e43 Mon Sep 17 00:00:00 2001 From: Loweel Date: Fri, 1 Jul 2022 15:46:31 +0200 Subject: [PATCH] First commit --- 00.memory.go | 26 + conf.go | 53 + go.mod | 16 + go.sum | 18 + interface.go | 118 + main.go | 30 + multicast.go | 67 + orchestrator.go | 87 + vendor/github.com/docker/libcontainer/LICENSE | 191 + vendor/github.com/docker/libcontainer/NOTICE | 16 + .../docker/libcontainer/netlink/MAINTAINERS | 2 + .../docker/libcontainer/netlink/netlink.go | 31 + .../libcontainer/netlink/netlink_linux.go | 1321 +++ .../netlink/netlink_linux_armppc64.go | 7 + .../netlink/netlink_linux_notarm.go | 7 + .../netlink/netlink_unsupported.go | 88 + .../docker/libcontainer/system/linux.go | 77 + .../docker/libcontainer/system/proc.go | 27 + .../docker/libcontainer/system/setns_linux.go | 40 + .../libcontainer/system/syscall_linux_386.go | 24 + .../libcontainer/system/syscall_linux_64.go | 25 + .../libcontainer/system/syscall_linux_arm.go | 24 + 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vendor/golang.org/x/sys/unix/dev_freebsd.go | 30 + vendor/golang.org/x/sys/unix/dev_linux.go | 42 + vendor/golang.org/x/sys/unix/dev_netbsd.go | 29 + vendor/golang.org/x/sys/unix/dev_openbsd.go | 29 + vendor/golang.org/x/sys/unix/dev_zos.go | 29 + vendor/golang.org/x/sys/unix/dirent.go | 103 + vendor/golang.org/x/sys/unix/endian_big.go | 10 + vendor/golang.org/x/sys/unix/endian_little.go | 10 + vendor/golang.org/x/sys/unix/env_unix.go | 32 + vendor/golang.org/x/sys/unix/epoll_zos.go | 221 + .../x/sys/unix/errors_freebsd_386.go | 233 + .../x/sys/unix/errors_freebsd_amd64.go | 233 + .../x/sys/unix/errors_freebsd_arm.go | 226 + .../x/sys/unix/errors_freebsd_arm64.go | 17 + vendor/golang.org/x/sys/unix/fcntl.go | 37 + vendor/golang.org/x/sys/unix/fcntl_darwin.go | 24 + .../x/sys/unix/fcntl_linux_32bit.go | 14 + vendor/golang.org/x/sys/unix/fdset.go | 30 + vendor/golang.org/x/sys/unix/fstatfs_zos.go | 164 + vendor/golang.org/x/sys/unix/gccgo.go | 60 + vendor/golang.org/x/sys/unix/gccgo_c.c | 45 + .../x/sys/unix/gccgo_linux_amd64.go | 21 + vendor/golang.org/x/sys/unix/ioctl.go | 75 + vendor/golang.org/x/sys/unix/ioctl_zos.go | 74 + vendor/golang.org/x/sys/unix/mkall.sh | 243 + vendor/golang.org/x/sys/unix/mkerrors.sh | 747 ++ vendor/golang.org/x/sys/unix/pagesize_unix.go | 16 + .../golang.org/x/sys/unix/pledge_openbsd.go | 163 + vendor/golang.org/x/sys/unix/ptrace_darwin.go | 12 + vendor/golang.org/x/sys/unix/ptrace_ios.go | 12 + vendor/golang.org/x/sys/unix/race.go | 31 + vendor/golang.org/x/sys/unix/race0.go | 26 + .../x/sys/unix/readdirent_getdents.go | 13 + .../x/sys/unix/readdirent_getdirentries.go | 20 + .../x/sys/unix/sockcmsg_dragonfly.go | 16 + .../golang.org/x/sys/unix/sockcmsg_linux.go | 36 + vendor/golang.org/x/sys/unix/sockcmsg_unix.go | 93 + .../x/sys/unix/sockcmsg_unix_other.go | 47 + vendor/golang.org/x/sys/unix/str.go | 27 + vendor/golang.org/x/sys/unix/syscall.go | 95 + vendor/golang.org/x/sys/unix/syscall_aix.go | 553 + .../golang.org/x/sys/unix/syscall_aix_ppc.go | 54 + .../x/sys/unix/syscall_aix_ppc64.go | 85 + vendor/golang.org/x/sys/unix/syscall_bsd.go | 664 ++ .../x/sys/unix/syscall_darwin.1_12.go | 32 + .../x/sys/unix/syscall_darwin.1_13.go | 108 + .../golang.org/x/sys/unix/syscall_darwin.go | 677 ++ .../x/sys/unix/syscall_darwin_386.go | 51 + .../x/sys/unix/syscall_darwin_amd64.go | 51 + .../x/sys/unix/syscall_darwin_arm.go | 51 + .../x/sys/unix/syscall_darwin_arm64.go | 51 + .../x/sys/unix/syscall_darwin_libSystem.go | 34 + .../x/sys/unix/syscall_dragonfly.go | 541 + .../x/sys/unix/syscall_dragonfly_amd64.go | 57 + .../golang.org/x/sys/unix/syscall_freebsd.go | 872 ++ .../x/sys/unix/syscall_freebsd_386.go | 67 + .../x/sys/unix/syscall_freebsd_amd64.go | 67 + .../x/sys/unix/syscall_freebsd_arm.go | 63 + .../x/sys/unix/syscall_freebsd_arm64.go | 63 + .../golang.org/x/sys/unix/syscall_illumos.go | 78 + vendor/golang.org/x/sys/unix/syscall_linux.go | 2481 +++++ .../x/sys/unix/syscall_linux_386.go | 388 + .../x/sys/unix/syscall_linux_amd64.go | 195 + .../x/sys/unix/syscall_linux_amd64_gc.go | 13 + .../x/sys/unix/syscall_linux_arm.go | 287 + .../x/sys/unix/syscall_linux_arm64.go | 246 + .../golang.org/x/sys/unix/syscall_linux_gc.go | 15 + .../x/sys/unix/syscall_linux_gc_386.go | 17 + .../x/sys/unix/syscall_linux_gc_arm.go | 14 + .../x/sys/unix/syscall_linux_gccgo_386.go | 31 + .../x/sys/unix/syscall_linux_gccgo_arm.go | 21 + .../x/sys/unix/syscall_linux_mips64x.go | 231 + .../x/sys/unix/syscall_linux_mipsx.go | 239 + .../x/sys/unix/syscall_linux_ppc64x.go | 157 + .../x/sys/unix/syscall_linux_riscv64.go | 231 + .../x/sys/unix/syscall_linux_s390x.go | 343 + .../x/sys/unix/syscall_linux_sparc64.go | 152 + .../golang.org/x/sys/unix/syscall_netbsd.go | 618 ++ .../x/sys/unix/syscall_netbsd_386.go | 38 + .../x/sys/unix/syscall_netbsd_amd64.go | 38 + .../x/sys/unix/syscall_netbsd_arm.go | 38 + .../x/sys/unix/syscall_netbsd_arm64.go | 38 + .../golang.org/x/sys/unix/syscall_openbsd.go | 390 + .../x/sys/unix/syscall_openbsd_386.go | 42 + .../x/sys/unix/syscall_openbsd_amd64.go | 42 + .../x/sys/unix/syscall_openbsd_arm.go | 42 + .../x/sys/unix/syscall_openbsd_arm64.go | 42 + .../x/sys/unix/syscall_openbsd_mips64.go | 35 + .../golang.org/x/sys/unix/syscall_solaris.go | 741 ++ .../x/sys/unix/syscall_solaris_amd64.go | 28 + vendor/golang.org/x/sys/unix/syscall_unix.go | 431 + .../golang.org/x/sys/unix/syscall_unix_gc.go | 18 + .../x/sys/unix/syscall_unix_gc_ppc64x.go | 25 + .../x/sys/unix/syscall_zos_s390x.go | 1781 ++++ vendor/golang.org/x/sys/unix/timestruct.go | 77 + .../golang.org/x/sys/unix/unveil_openbsd.go | 42 + vendor/golang.org/x/sys/unix/xattr_bsd.go | 241 + .../golang.org/x/sys/unix/zerrors_aix_ppc.go | 1385 +++ .../x/sys/unix/zerrors_aix_ppc64.go | 1386 +++ .../x/sys/unix/zerrors_darwin_386.go | 1789 ++++ .../x/sys/unix/zerrors_darwin_amd64.go | 1835 ++++ .../x/sys/unix/zerrors_darwin_arm.go | 1789 ++++ .../x/sys/unix/zerrors_darwin_arm64.go | 1835 ++++ .../x/sys/unix/zerrors_dragonfly_amd64.go | 1738 +++ .../x/sys/unix/zerrors_freebsd_386.go | 1943 ++++ .../x/sys/unix/zerrors_freebsd_amd64.go | 1942 ++++ .../x/sys/unix/zerrors_freebsd_arm.go | 1832 ++++ .../x/sys/unix/zerrors_freebsd_arm64.go | 1943 ++++ vendor/golang.org/x/sys/unix/zerrors_linux.go | 2803 +++++ .../x/sys/unix/zerrors_linux_386.go | 801 ++ .../x/sys/unix/zerrors_linux_amd64.go | 801 ++ .../x/sys/unix/zerrors_linux_arm.go | 807 ++ .../x/sys/unix/zerrors_linux_arm64.go | 798 ++ .../x/sys/unix/zerrors_linux_mips.go | 808 ++ .../x/sys/unix/zerrors_linux_mips64.go | 808 ++ .../x/sys/unix/zerrors_linux_mips64le.go | 808 ++ .../x/sys/unix/zerrors_linux_mipsle.go | 808 ++ .../x/sys/unix/zerrors_linux_ppc64.go | 864 ++ .../x/sys/unix/zerrors_linux_ppc64le.go | 864 ++ .../x/sys/unix/zerrors_linux_riscv64.go | 788 ++ .../x/sys/unix/zerrors_linux_s390x.go | 861 ++ .../x/sys/unix/zerrors_linux_sparc64.go | 858 ++ .../x/sys/unix/zerrors_netbsd_386.go | 1780 ++++ .../x/sys/unix/zerrors_netbsd_amd64.go | 1770 +++ .../x/sys/unix/zerrors_netbsd_arm.go | 1759 +++ .../x/sys/unix/zerrors_netbsd_arm64.go | 1770 +++ .../x/sys/unix/zerrors_openbsd_386.go | 1665 +++ .../x/sys/unix/zerrors_openbsd_amd64.go | 1775 +++ .../x/sys/unix/zerrors_openbsd_arm.go | 1667 +++ .../x/sys/unix/zerrors_openbsd_arm64.go | 1798 ++++ .../x/sys/unix/zerrors_openbsd_mips64.go | 1863 ++++ .../x/sys/unix/zerrors_solaris_amd64.go | 1554 +++ .../x/sys/unix/zerrors_zos_s390x.go | 831 ++ .../x/sys/unix/zptrace_armnn_linux.go | 42 + .../x/sys/unix/zptrace_linux_arm64.go | 17 + .../x/sys/unix/zptrace_mipsnn_linux.go | 51 + .../x/sys/unix/zptrace_mipsnnle_linux.go | 51 + .../x/sys/unix/zptrace_x86_linux.go | 81 + .../golang.org/x/sys/unix/zsyscall_aix_ppc.go | 1485 +++ .../x/sys/unix/zsyscall_aix_ppc64.go | 1443 +++ .../x/sys/unix/zsyscall_aix_ppc64_gc.go | 1192 +++ .../x/sys/unix/zsyscall_aix_ppc64_gccgo.go | 1070 ++ .../x/sys/unix/zsyscall_darwin_386.1_13.go | 40 + .../x/sys/unix/zsyscall_darwin_386.1_13.s | 12 + .../x/sys/unix/zsyscall_darwin_386.go | 2431 +++++ .../x/sys/unix/zsyscall_darwin_386.s | 290 + .../x/sys/unix/zsyscall_darwin_amd64.1_13.go | 40 + .../x/sys/unix/zsyscall_darwin_amd64.1_13.s | 12 + .../x/sys/unix/zsyscall_darwin_amd64.go | 2431 +++++ .../x/sys/unix/zsyscall_darwin_amd64.s | 290 + .../x/sys/unix/zsyscall_darwin_arm.1_13.go | 40 + .../x/sys/unix/zsyscall_darwin_arm.1_13.s | 12 + .../x/sys/unix/zsyscall_darwin_arm.go | 2417 +++++ .../x/sys/unix/zsyscall_darwin_arm.s | 288 + .../x/sys/unix/zsyscall_darwin_arm64.1_13.go | 40 + .../x/sys/unix/zsyscall_darwin_arm64.1_13.s | 12 + .../x/sys/unix/zsyscall_darwin_arm64.go | 2431 +++++ .../x/sys/unix/zsyscall_darwin_arm64.s | 290 + .../x/sys/unix/zsyscall_dragonfly_amd64.go | 1679 +++ .../x/sys/unix/zsyscall_freebsd_386.go | 2016 ++++ .../x/sys/unix/zsyscall_freebsd_amd64.go | 2016 ++++ .../x/sys/unix/zsyscall_freebsd_arm.go | 2016 ++++ .../x/sys/unix/zsyscall_freebsd_arm64.go | 2016 ++++ .../x/sys/unix/zsyscall_illumos_amd64.go | 102 + .../golang.org/x/sys/unix/zsyscall_linux.go | 1944 ++++ .../x/sys/unix/zsyscall_linux_386.go | 579 + .../x/sys/unix/zsyscall_linux_amd64.go | 746 ++ .../x/sys/unix/zsyscall_linux_arm.go | 716 ++ .../x/sys/unix/zsyscall_linux_arm64.go | 603 ++ .../x/sys/unix/zsyscall_linux_mips.go | 759 ++ .../x/sys/unix/zsyscall_linux_mips64.go | 730 ++ .../x/sys/unix/zsyscall_linux_mips64le.go | 730 ++ .../x/sys/unix/zsyscall_linux_mipsle.go | 759 ++ .../x/sys/unix/zsyscall_linux_ppc64.go | 808 ++ .../x/sys/unix/zsyscall_linux_ppc64le.go | 808 ++ .../x/sys/unix/zsyscall_linux_riscv64.go | 583 + .../x/sys/unix/zsyscall_linux_s390x.go | 578 + .../x/sys/unix/zsyscall_linux_sparc64.go | 741 ++ .../x/sys/unix/zsyscall_netbsd_386.go | 1862 ++++ .../x/sys/unix/zsyscall_netbsd_amd64.go | 1862 ++++ .../x/sys/unix/zsyscall_netbsd_arm.go | 1862 ++++ .../x/sys/unix/zsyscall_netbsd_arm64.go | 1862 ++++ .../x/sys/unix/zsyscall_openbsd_386.go | 1693 +++ .../x/sys/unix/zsyscall_openbsd_amd64.go | 1693 +++ .../x/sys/unix/zsyscall_openbsd_arm.go | 1693 +++ .../x/sys/unix/zsyscall_openbsd_arm64.go | 1693 +++ .../x/sys/unix/zsyscall_openbsd_mips64.go | 1693 +++ .../x/sys/unix/zsyscall_solaris_amd64.go | 1982 ++++ .../x/sys/unix/zsyscall_zos_s390x.go | 1217 +++ .../x/sys/unix/zsysctl_openbsd_386.go | 274 + .../x/sys/unix/zsysctl_openbsd_amd64.go | 272 + .../x/sys/unix/zsysctl_openbsd_arm.go | 274 + .../x/sys/unix/zsysctl_openbsd_arm64.go | 276 + .../x/sys/unix/zsysctl_openbsd_mips64.go | 280 + .../x/sys/unix/zsysnum_darwin_386.go | 438 + .../x/sys/unix/zsysnum_darwin_amd64.go | 440 + .../x/sys/unix/zsysnum_darwin_arm.go | 438 + .../x/sys/unix/zsysnum_darwin_arm64.go | 438 + .../x/sys/unix/zsysnum_dragonfly_amd64.go | 317 + .../x/sys/unix/zsysnum_freebsd_386.go | 397 + .../x/sys/unix/zsysnum_freebsd_amd64.go | 397 + .../x/sys/unix/zsysnum_freebsd_arm.go | 397 + .../x/sys/unix/zsysnum_freebsd_arm64.go | 397 + .../x/sys/unix/zsysnum_linux_386.go | 441 + .../x/sys/unix/zsysnum_linux_amd64.go | 363 + .../x/sys/unix/zsysnum_linux_arm.go | 405 + .../x/sys/unix/zsysnum_linux_arm64.go | 308 + .../x/sys/unix/zsysnum_linux_mips.go | 426 + .../x/sys/unix/zsysnum_linux_mips64.go | 356 + .../x/sys/unix/zsysnum_linux_mips64le.go | 356 + .../x/sys/unix/zsysnum_linux_mipsle.go | 426 + .../x/sys/unix/zsysnum_linux_ppc64.go | 405 + .../x/sys/unix/zsysnum_linux_ppc64le.go | 405 + .../x/sys/unix/zsysnum_linux_riscv64.go | 307 + .../x/sys/unix/zsysnum_linux_s390x.go | 370 + .../x/sys/unix/zsysnum_linux_sparc64.go | 384 + .../x/sys/unix/zsysnum_netbsd_386.go | 275 + .../x/sys/unix/zsysnum_netbsd_amd64.go | 275 + .../x/sys/unix/zsysnum_netbsd_arm.go | 275 + .../x/sys/unix/zsysnum_netbsd_arm64.go | 275 + .../x/sys/unix/zsysnum_openbsd_386.go | 219 + .../x/sys/unix/zsysnum_openbsd_amd64.go | 219 + .../x/sys/unix/zsysnum_openbsd_arm.go | 219 + .../x/sys/unix/zsysnum_openbsd_arm64.go | 218 + .../x/sys/unix/zsysnum_openbsd_mips64.go | 221 + .../x/sys/unix/zsysnum_zos_s390x.go | 2670 +++++ .../golang.org/x/sys/unix/ztypes_aix_ppc.go | 354 + .../golang.org/x/sys/unix/ztypes_aix_ppc64.go | 358 + .../x/sys/unix/ztypes_darwin_386.go | 517 + .../x/sys/unix/ztypes_darwin_amd64.go | 530 + .../x/sys/unix/ztypes_darwin_arm.go | 517 + .../x/sys/unix/ztypes_darwin_arm64.go | 530 + .../x/sys/unix/ztypes_dragonfly_amd64.go | 471 + .../x/sys/unix/ztypes_freebsd_386.go | 720 ++ .../x/sys/unix/ztypes_freebsd_amd64.go | 723 ++ .../x/sys/unix/ztypes_freebsd_arm.go | 704 ++ .../x/sys/unix/ztypes_freebsd_arm64.go | 701 ++ vendor/golang.org/x/sys/unix/ztypes_linux.go | 3722 +++++++ .../golang.org/x/sys/unix/ztypes_linux_386.go | 620 ++ .../x/sys/unix/ztypes_linux_amd64.go | 638 ++ .../golang.org/x/sys/unix/ztypes_linux_arm.go | 615 ++ .../x/sys/unix/ztypes_linux_arm64.go | 617 ++ .../x/sys/unix/ztypes_linux_mips.go | 621 ++ .../x/sys/unix/ztypes_linux_mips64.go | 620 ++ .../x/sys/unix/ztypes_linux_mips64le.go | 620 ++ .../x/sys/unix/ztypes_linux_mipsle.go | 621 ++ .../x/sys/unix/ztypes_linux_ppc64.go | 627 ++ .../x/sys/unix/ztypes_linux_ppc64le.go | 627 ++ .../x/sys/unix/ztypes_linux_riscv64.go | 645 ++ .../x/sys/unix/ztypes_linux_s390x.go | 641 ++ .../x/sys/unix/ztypes_linux_sparc64.go | 622 ++ .../x/sys/unix/ztypes_netbsd_386.go | 500 + .../x/sys/unix/ztypes_netbsd_amd64.go | 508 + .../x/sys/unix/ztypes_netbsd_arm.go | 505 + .../x/sys/unix/ztypes_netbsd_arm64.go | 508 + .../x/sys/unix/ztypes_openbsd_386.go | 573 + .../x/sys/unix/ztypes_openbsd_amd64.go | 573 + .../x/sys/unix/ztypes_openbsd_arm.go | 574 + .../x/sys/unix/ztypes_openbsd_arm64.go | 567 + .../x/sys/unix/ztypes_openbsd_mips64.go | 567 + .../x/sys/unix/ztypes_solaris_amd64.go | 442 + .../golang.org/x/sys/unix/ztypes_zos_s390x.go | 402 + vendor/golang.org/x/sys/windows/aliases.go | 13 + .../golang.org/x/sys/windows/dll_windows.go | 416 + vendor/golang.org/x/sys/windows/empty.s | 8 + .../golang.org/x/sys/windows/env_windows.go | 54 + vendor/golang.org/x/sys/windows/eventlog.go | 20 + .../golang.org/x/sys/windows/exec_windows.go | 132 + .../x/sys/windows/memory_windows.go | 37 + vendor/golang.org/x/sys/windows/mkerrors.bash | 70 + .../x/sys/windows/mkknownfolderids.bash | 27 + vendor/golang.org/x/sys/windows/mksyscall.go | 9 + vendor/golang.org/x/sys/windows/race.go | 30 + vendor/golang.org/x/sys/windows/race0.go | 25 + .../x/sys/windows/security_windows.go | 1431 +++ vendor/golang.org/x/sys/windows/service.go | 237 + .../x/sys/windows/setupapierrors_windows.go | 100 + vendor/golang.org/x/sys/windows/str.go | 22 + vendor/golang.org/x/sys/windows/syscall.go | 112 + .../x/sys/windows/syscall_windows.go | 1671 +++ .../golang.org/x/sys/windows/types_windows.go | 2774 +++++ .../x/sys/windows/types_windows_386.go | 35 + .../x/sys/windows/types_windows_amd64.go | 34 + .../x/sys/windows/types_windows_arm.go | 35 + .../x/sys/windows/types_windows_arm64.go | 34 + .../x/sys/windows/zerrors_windows.go | 9468 +++++++++++++++++ .../x/sys/windows/zknownfolderids_windows.go | 149 + .../x/sys/windows/zsyscall_windows.go | 3639 +++++++ vendor/modules.txt | 29 + zoreide.json | 11 + 672 files changed, 211935 insertions(+) create mode 100644 00.memory.go create mode 100644 conf.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 interface.go create mode 100644 main.go create mode 100644 multicast.go create mode 100644 orchestrator.go create mode 100644 vendor/github.com/docker/libcontainer/LICENSE create mode 100644 vendor/github.com/docker/libcontainer/NOTICE create mode 100644 vendor/github.com/docker/libcontainer/netlink/MAINTAINERS create mode 100644 vendor/github.com/docker/libcontainer/netlink/netlink.go create mode 100644 vendor/github.com/docker/libcontainer/netlink/netlink_linux.go create mode 100644 vendor/github.com/docker/libcontainer/netlink/netlink_linux_armppc64.go create mode 100644 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vendor/golang.org/x/sys/unix/ztypes_netbsd_386.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_netbsd_amd64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_netbsd_arm.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_netbsd_arm64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_openbsd_386.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_openbsd_amd64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_openbsd_arm.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_openbsd_arm64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_openbsd_mips64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_solaris_amd64.go create mode 100644 vendor/golang.org/x/sys/unix/ztypes_zos_s390x.go create mode 100644 vendor/golang.org/x/sys/windows/aliases.go create mode 100644 vendor/golang.org/x/sys/windows/dll_windows.go create mode 100644 vendor/golang.org/x/sys/windows/empty.s create mode 100644 vendor/golang.org/x/sys/windows/env_windows.go create mode 100644 vendor/golang.org/x/sys/windows/eventlog.go create mode 100644 vendor/golang.org/x/sys/windows/exec_windows.go create mode 100644 vendor/golang.org/x/sys/windows/memory_windows.go create mode 100644 vendor/golang.org/x/sys/windows/mkerrors.bash create mode 100644 vendor/golang.org/x/sys/windows/mkknownfolderids.bash create mode 100644 vendor/golang.org/x/sys/windows/mksyscall.go create mode 100644 vendor/golang.org/x/sys/windows/race.go create mode 100644 vendor/golang.org/x/sys/windows/race0.go create mode 100644 vendor/golang.org/x/sys/windows/security_windows.go create mode 100644 vendor/golang.org/x/sys/windows/service.go create mode 100644 vendor/golang.org/x/sys/windows/setupapierrors_windows.go create mode 100644 vendor/golang.org/x/sys/windows/str.go create mode 100644 vendor/golang.org/x/sys/windows/syscall.go create mode 100644 vendor/golang.org/x/sys/windows/syscall_windows.go create mode 100644 vendor/golang.org/x/sys/windows/types_windows.go create mode 100644 vendor/golang.org/x/sys/windows/types_windows_386.go create mode 100644 vendor/golang.org/x/sys/windows/types_windows_amd64.go create mode 100644 vendor/golang.org/x/sys/windows/types_windows_arm.go create mode 100644 vendor/golang.org/x/sys/windows/types_windows_arm64.go create mode 100644 vendor/golang.org/x/sys/windows/zerrors_windows.go create mode 100644 vendor/golang.org/x/sys/windows/zknownfolderids_windows.go create mode 100644 vendor/golang.org/x/sys/windows/zsyscall_windows.go create mode 100644 vendor/modules.txt create mode 100644 zoreide.json diff --git a/00.memory.go b/00.memory.go new file mode 100644 index 0000000..762ac9f --- /dev/null +++ b/00.memory.go @@ -0,0 +1,26 @@ +package main + +import ( + "fmt" + "runtime" + "time" +) + +func init() { + + fmt.Println("Garbage Collector Thread Starting") + + go memoryCleanerThread() + +} + +func memoryCleanerThread() { + + for { + time.Sleep(10 * time.Minute) + fmt.Println("Time to clean memory...") + runtime.GC() + fmt.Println("Garbage Collection done.") + } + +} diff --git a/conf.go b/conf.go new file mode 100644 index 0000000..d201f4d --- /dev/null +++ b/conf.go @@ -0,0 +1,53 @@ +package main + +import ( + "encoding/json" + "io/ioutil" + "log" + "os" +) + +type AbstractConfig struct { + MulticastConfig struct { + MIPAddr string `json:"MIpAddr"` + MPort string `json:"MPort"` + } `json:"MulticastConfig"` + InterfaceConfig struct { + ExistingInterface string `json:"ExistingInterface"` + BridgeIPCIDR string `json:"BridgeIpCIDR"` + } `json:"InterfaceConfig"` +} + +var a AbstractConfig + +func init() { + + //reading json file + file, err := ioutil.ReadFile("zoreide.json") + + if err != nil { + log.Println("Cannot open config file", err.Error()) + os.Exit(1) + } + + err = json.Unmarshal([]byte(file), &a) + + if err != nil { + log.Println("Cannot marshal json: ", err.Error()) + os.Exit(1) + } + + MulticastEntity.MIpAddr = a.MulticastConfig.MIPAddr + MulticastEntity.MPort = a.MulticastConfig.MPort + MulticastEntity.MaxDatagramSize = numberlenght + + ZoreideBridge.BridgeIpCIDR = a.InterfaceConfig.BridgeIPCIDR + ZoreideBridge.ExistingInterface = a.InterfaceConfig.ExistingInterface + ZoreideBridge.IsActive = false + ZoreideBridge.IsAlpha = true + + log.Println("Inizialized Generic Config: ", a) + log.Println("Inizialized Interface Config: ", ZoreideBridge) + log.Println("Inizialized Multicast Config: ", MulticastEntity) + +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..ee02c59 --- /dev/null +++ b/go.mod @@ -0,0 +1,16 @@ +module zoreide + +go 1.17 + +require ( + github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534 + github.com/milosgajdos/tenus v0.0.3 +) + +require ( + github.com/docker/libcontainer v2.2.1+incompatible // indirect + github.com/google/uuid v1.2.0 // indirect + golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 // indirect + golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect + golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..3836984 --- /dev/null +++ b/go.sum @@ -0,0 +1,18 @@ +github.com/docker/libcontainer v2.2.1+incompatible h1:++SbbkCw+X8vAd4j2gOCzZ2Nn7s2xFALTf7LZKmM1/0= +github.com/docker/libcontainer v2.2.1+incompatible/go.mod h1:osvj61pYsqhNCMLGX31xr7klUBhHb/ZBuXS0o1Fvwbw= +github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534 h1:dhy9OQKGBh4zVXbjwbxxHjRxMJtLXj3zfgpBYQaR4Q4= +github.com/go-ping/ping v0.0.0-20211130115550-779d1e919534/go.mod h1:xIFjORFzTxqIV/tDVGO4eDy/bLuSyawEeojSm3GfRGk= +github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs= +github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/milosgajdos/tenus v0.0.3 h1:jmaJzwaY1DUyYVD0lM4U+uvP2kkEg1VahDqRFxIkVBE= +github.com/milosgajdos/tenus v0.0.3/go.mod h1:eIjx29vNeDOYWJuCnaHY2r4fq5egetV26ry3on7p8qY= +golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 h1:b0LrWgu8+q7z4J+0Y3Umo5q1dL7NXBkKBWkaVkAq17E= +golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc= +golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ= +golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 h1:pDMpM2zh2MT0kHy037cKlSby2nEhD50SYqwQk76Nm40= +golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= +golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= diff --git a/interface.go b/interface.go new file mode 100644 index 0000000..3ba1320 --- /dev/null +++ b/interface.go @@ -0,0 +1,118 @@ +package main + +import ( + "fmt" + "log" + "math/rand" + "net" + "strconv" + "time" + + "github.com/go-ping/ping" + "github.com/milosgajdos/tenus" +) + +type AbstractBridge struct { + ExistingInterface string + BridgeIpCIDR string + IsActive bool + IsAlpha bool + hIerarchyNumber int64 +} + +var ZoreideBridge AbstractBridge + +func init() { + + ZoreideBridge.initializeHierarchy() + +} + +func (b *AbstractBridge) initializeHierarchy() { + + rand.Seed(time.Now().UnixNano()) + var letterRunes = []rune("123456789") + + num := make([]rune, numberlenght) + for i := range num { + num[i] = letterRunes[rand.Intn(len(letterRunes))] + } + + zz, err := strconv.ParseInt(string(num), 10, 64) + if err != nil { + log.Println("Error generating number: ", err.Error()) + b.hIerarchyNumber = 0 + return + } else { + b.hIerarchyNumber = zz + log.Println("Success generating number: ", b.hIerarchyNumber) + } + +} + +func (b *AbstractBridge) configureIpAndBridgeUp() { + // we want the program to recover in case of issues + defer func() { + if r := recover(); r != nil { + + fmt.Println("Recovered. Error:\n", r) + } + }() + + // first we check the IP is free. Something weird could have happened in some + // other server + brIp, brIpNet, err := net.ParseCIDR(b.BridgeIpCIDR) + if err != nil { + log.Println(err.Error()) + } + + if doesIpExists(brIp.String()) { + log.Println("Cannot take this IP, it exists already: " + brIp.String()) + return + } + + br, err := tenus.NewLinkFrom(b.ExistingInterface) + if err != nil { + log.Println(err.Error()) + } + + if err := br.SetLinkIp(brIp, brIpNet); err != nil { + log.Println(err.Error()) + } + +} + +func (b *AbstractBridge) removeIPandBridgeInt() { + + br, err := tenus.NewLinkFrom(b.ExistingInterface) + if err != nil { + log.Println(err.Error()) + } + + brIp, brIpNet, err := net.ParseCIDR(b.BridgeIpCIDR) + if err != nil { + log.Println(err.Error()) + } + if err := br.UnsetLinkIp(brIp, brIpNet); err != nil { + log.Println(err.Error()) + } + +} + +func doesIpExists(bridgeip string) bool { + + pinger, err := ping.NewPinger(bridgeip) + if err != nil { + log.Println("Ping error: " + err.Error()) + } + // just in case it doesn't stops alone + defer pinger.Stop() + pinger.Count = 3 + pinger.Interval = time.Duration(10 * time.Millisecond) + pinger.Timeout = time.Duration(1 * time.Second) + pinger.Run() // blocks until finished + stats := pinger.Statistics() + + return stats.PacketsRecv > 0 + +} diff --git a/main.go b/main.go new file mode 100644 index 0000000..9fa1c95 --- /dev/null +++ b/main.go @@ -0,0 +1,30 @@ +package main + +import ( + "os" + "os/signal" + "syscall" +) + +var MulticastEntity AbstractMulticast +var BstChannel = make(chan string, 1) + +const numberlenght = 18 + +func main() { + + MulticastEntity.GetMulticastReady() + go MulticastEntity.WriteNumberToMulticast() + go MulticastEntity.ReadNumberFromMulticast() + go ZoreideBridge.BeTheBeta() + go ZoreideBridge.WaitForBeAlpha() + + // Just a nice way to wait until the Operating system sends a kill signal. + // select{} was just horrible. + c := make(chan os.Signal, 1) + signal.Notify(c, os.Interrupt, syscall.SIGTERM) + <-c + ZoreideBridge.removeIPandBridgeInt() + os.Exit(0) + +} diff --git a/multicast.go b/multicast.go new file mode 100644 index 0000000..f27b903 --- /dev/null +++ b/multicast.go @@ -0,0 +1,67 @@ +package main + +import ( + "log" + "net" +) + +type AbstractMulticast struct { + MIpAddr string + MPort string + MaxDatagramSize int + MWaddr *net.UDPAddr + MRaddr *net.UDPAddr + Wconn *net.UDPConn + Rconn *net.UDPConn +} + +func (mip *AbstractMulticast) CreateUdpAddr() { + + // This Will create the local UDP Address + addr, err := net.ResolveUDPAddr("udp4", mip.MIpAddr+":"+mip.MPort) + if err != nil { + log.Fatal(err.Error()) + } + + mip.MRaddr = addr + log.Println("Multicast Listen addr created: ", mip.MRaddr.String()) + + // This will create the Writing UDP Addr + + mip.MWaddr = addr + log.Println("Multicast Writing addr created: ", mip.MWaddr.String()) + +} + +func (mip *AbstractMulticast) CreateWritingSocket() { + + conn, err := net.DialUDP("udp4", nil, mip.MWaddr) + if err != nil { + log.Fatal(err.Error()) + } + + mip.Wconn = conn + log.Println("Multicast Writing Socket Created: ", mip.Wconn.LocalAddr().String(), "->", mip.Wconn.RemoteAddr().String()) + +} +func (mip *AbstractMulticast) CreateReadingSocket() { + + // Open up a connection + conn, err := net.ListenMulticastUDP("udp", nil, mip.MRaddr) + if err != nil { + log.Fatal("UDP " + err.Error()) + } + + conn.SetReadBuffer(mip.MaxDatagramSize) + + mip.Rconn = conn + log.Println("Multicast Reading Socket Created: ", mip.Rconn.LocalAddr().String()) + +} + +func (mip *AbstractMulticast) GetMulticastReady() { + + mip.CreateUdpAddr() + mip.CreateWritingSocket() + mip.CreateReadingSocket() +} diff --git a/orchestrator.go b/orchestrator.go new file mode 100644 index 0000000..393fe1a --- /dev/null +++ b/orchestrator.go @@ -0,0 +1,87 @@ +package main + +import ( + "fmt" + "log" + "strconv" + "time" +) + +func (mip *AbstractMulticast) WriteNumberToMulticast() { + + log.Println("Initiating ticker") + + bstNumber := fmt.Sprintf("%d", ZoreideBridge.hIerarchyNumber) + + for range time.Tick(1 * time.Second) { + + _, err := mip.Wconn.Write([]byte(bstNumber)) + if err != nil { + log.Println("Cannot write to multicast:" + err.Error()) + } + } + +} + +func (mip *AbstractMulticast) ReadNumberFromMulticast() { + + log.Println("Initiating reader") + buffer := make([]byte, mip.MaxDatagramSize) + + // Loop forever reading from the socket + for { + + _, _, err := mip.Rconn.ReadFromUDP(buffer) + if err != nil { + log.Println("ReadFromUDP failed:", err) + } + + BstChannel <- string(buffer) + + } + +} + +func (b *AbstractBridge) BeTheBeta() { + + log.Println("Inizializing Descalator") + + ownNumber := b.hIerarchyNumber + + for bstNumber := range BstChannel { + + brdNumber, err := strconv.ParseInt(bstNumber, 10, 64) + if err != nil { + log.Println("Garbage received on multicast: ", bstNumber) + log.Println("Cannot convert to int64:", err.Error()) + continue + } + + if brdNumber > ownNumber { + log.Println("GULP! There is a bigger one, better descalating") + b.IsAlpha = false + if b.IsActive { + b.removeIPandBridgeInt() + b.IsActive = false + } + } + + } + +} + +func (b *AbstractBridge) WaitForBeAlpha() { + + log.Println("Inizializing Escalator") + + for range time.Tick(5 * time.Second) { + + if b.IsAlpha && !b.IsActive { + log.Println("I'm the ALPHA! Get out my path, losers!") + b.configureIpAndBridgeUp() + b.IsActive = true + } + + b.IsAlpha = true + } +} diff --git a/vendor/github.com/docker/libcontainer/LICENSE b/vendor/github.com/docker/libcontainer/LICENSE new file mode 100644 index 0000000..2744858 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/docker/libcontainer/NOTICE b/vendor/github.com/docker/libcontainer/NOTICE new file mode 100644 index 0000000..dc91298 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/NOTICE @@ -0,0 +1,16 @@ +libcontainer +Copyright 2012-2015 Docker, Inc. + +This product includes software developed at Docker, Inc. (http://www.docker.com). + +The following is courtesy of our legal counsel: + + +Use and transfer of Docker may be subject to certain restrictions by the +United States and other governments. +It is your responsibility to ensure that your use and/or transfer does not +violate applicable laws. + +For more information, please see http://www.bis.doc.gov + +See also http://www.apache.org/dev/crypto.html and/or seek legal counsel. diff --git a/vendor/github.com/docker/libcontainer/netlink/MAINTAINERS b/vendor/github.com/docker/libcontainer/netlink/MAINTAINERS new file mode 100644 index 0000000..1cb5513 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/MAINTAINERS @@ -0,0 +1,2 @@ +Michael Crosby (@crosbymichael) +Guillaume J. Charmes (@creack) diff --git a/vendor/github.com/docker/libcontainer/netlink/netlink.go b/vendor/github.com/docker/libcontainer/netlink/netlink.go new file mode 100644 index 0000000..9088366 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/netlink.go @@ -0,0 +1,31 @@ +// Packet netlink provide access to low level Netlink sockets and messages. +// +// Actual implementations are in: +// netlink_linux.go +// netlink_darwin.go +package netlink + +import ( + "errors" + "net" +) + +var ( + ErrWrongSockType = errors.New("Wrong socket type") + ErrShortResponse = errors.New("Got short response from netlink") + ErrInterfaceExists = errors.New("Network interface already exists") +) + +// A Route is a subnet associated with the interface to reach it. +type Route struct { + *net.IPNet + Iface *net.Interface + Default bool +} + +// An IfAddr defines IP network settings for a given network interface +type IfAddr struct { + Iface *net.Interface + IP net.IP + IPNet *net.IPNet +} diff --git a/vendor/github.com/docker/libcontainer/netlink/netlink_linux.go b/vendor/github.com/docker/libcontainer/netlink/netlink_linux.go new file mode 100644 index 0000000..c81c269 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/netlink_linux.go @@ -0,0 +1,1321 @@ +package netlink + +import ( + "encoding/binary" + "fmt" + "io" + "math/rand" + "net" + "os" + "sync/atomic" + "syscall" + "time" + "unsafe" +) + +const ( + IFNAMSIZ = 16 + DEFAULT_CHANGE = 0xFFFFFFFF + IFLA_INFO_KIND = 1 + IFLA_INFO_DATA = 2 + VETH_INFO_PEER = 1 + IFLA_MACVLAN_MODE = 1 + IFLA_VLAN_ID = 1 + IFLA_NET_NS_FD = 28 + IFLA_ADDRESS = 1 + IFLA_BRPORT_MODE = 4 + SIOC_BRADDBR = 0x89a0 + SIOC_BRDELBR = 0x89a1 + SIOC_BRADDIF = 0x89a2 + SIOC_BRDELIF = 0x89a3 +) + +const ( + MACVLAN_MODE_PRIVATE = 1 << iota + MACVLAN_MODE_VEPA + MACVLAN_MODE_BRIDGE + MACVLAN_MODE_PASSTHRU +) + +var nextSeqNr uint32 + +type ifreqHwaddr struct { + IfrnName [IFNAMSIZ]byte + IfruHwaddr syscall.RawSockaddr +} + +type ifreqIndex struct { + IfrnName [IFNAMSIZ]byte + IfruIndex int32 +} + +type ifreqFlags struct { + IfrnName [IFNAMSIZ]byte + Ifruflags uint16 +} + +var native binary.ByteOrder + +var rnd = rand.New(rand.NewSource(time.Now().UnixNano())) + +func init() { + var x uint32 = 0x01020304 + if *(*byte)(unsafe.Pointer(&x)) == 0x01 { + native = binary.BigEndian + } else { + native = binary.LittleEndian + } +} + +func getIpFamily(ip net.IP) int { + if len(ip) <= net.IPv4len { + return syscall.AF_INET + } + if ip.To4() != nil { + return syscall.AF_INET + } + return syscall.AF_INET6 +} + +type NetlinkRequestData interface { + Len() int + ToWireFormat() []byte +} + +type IfInfomsg struct { + syscall.IfInfomsg +} + +func newIfInfomsg(family int) *IfInfomsg { + return &IfInfomsg{ + IfInfomsg: syscall.IfInfomsg{ + Family: uint8(family), + }, + } +} + +func newIfInfomsgChild(parent *RtAttr, family int) *IfInfomsg { + msg := newIfInfomsg(family) + parent.children = append(parent.children, msg) + return msg +} + +func (msg *IfInfomsg) ToWireFormat() []byte { + length := syscall.SizeofIfInfomsg + b := make([]byte, length) + b[0] = msg.Family + b[1] = 0 + native.PutUint16(b[2:4], msg.Type) + native.PutUint32(b[4:8], uint32(msg.Index)) + native.PutUint32(b[8:12], msg.Flags) + native.PutUint32(b[12:16], msg.Change) + return b +} + +func (msg *IfInfomsg) Len() int { + return syscall.SizeofIfInfomsg +} + +type IfAddrmsg struct { + syscall.IfAddrmsg +} + +func newIfAddrmsg(family int) *IfAddrmsg { + return &IfAddrmsg{ + IfAddrmsg: syscall.IfAddrmsg{ + Family: uint8(family), + }, + } +} + +func (msg *IfAddrmsg) ToWireFormat() []byte { + length := syscall.SizeofIfAddrmsg + b := make([]byte, length) + b[0] = msg.Family + b[1] = msg.Prefixlen + b[2] = msg.Flags + b[3] = msg.Scope + native.PutUint32(b[4:8], msg.Index) + return b +} + +func (msg *IfAddrmsg) Len() int { + return syscall.SizeofIfAddrmsg +} + +type RtMsg struct { + syscall.RtMsg +} + +func newRtMsg() *RtMsg { + return &RtMsg{ + RtMsg: syscall.RtMsg{ + Table: syscall.RT_TABLE_MAIN, + Scope: syscall.RT_SCOPE_UNIVERSE, + Protocol: syscall.RTPROT_BOOT, + Type: syscall.RTN_UNICAST, + }, + } +} + +func (msg *RtMsg) ToWireFormat() []byte { + length := syscall.SizeofRtMsg + b := make([]byte, length) + b[0] = msg.Family + b[1] = msg.Dst_len + b[2] = msg.Src_len + b[3] = msg.Tos + b[4] = msg.Table + b[5] = msg.Protocol + b[6] = msg.Scope + b[7] = msg.Type + native.PutUint32(b[8:12], msg.Flags) + return b +} + +func (msg *RtMsg) Len() int { + return syscall.SizeofRtMsg +} + +func rtaAlignOf(attrlen int) int { + return (attrlen + syscall.RTA_ALIGNTO - 1) & ^(syscall.RTA_ALIGNTO - 1) +} + +type RtAttr struct { + syscall.RtAttr + Data []byte + children []NetlinkRequestData +} + +func newRtAttr(attrType int, data []byte) *RtAttr { + return &RtAttr{ + RtAttr: syscall.RtAttr{ + Type: uint16(attrType), + }, + children: []NetlinkRequestData{}, + Data: data, + } +} + +func newRtAttrChild(parent *RtAttr, attrType int, data []byte) *RtAttr { + attr := newRtAttr(attrType, data) + parent.children = append(parent.children, attr) + return attr +} + +func (a *RtAttr) Len() int { + if len(a.children) == 0 { + return (syscall.SizeofRtAttr + len(a.Data)) + } + + l := 0 + for _, child := range a.children { + l += child.Len() + } + l += syscall.SizeofRtAttr + return rtaAlignOf(l + len(a.Data)) +} + +func (a *RtAttr) ToWireFormat() []byte { + length := a.Len() + buf := make([]byte, rtaAlignOf(length)) + + if a.Data != nil { + copy(buf[4:], a.Data) + } else { + next := 4 + for _, child := range a.children { + childBuf := child.ToWireFormat() + copy(buf[next:], childBuf) + next += rtaAlignOf(len(childBuf)) + } + } + + if l := uint16(length); l != 0 { + native.PutUint16(buf[0:2], l) + } + native.PutUint16(buf[2:4], a.Type) + return buf +} + +func uint32Attr(t int, n uint32) *RtAttr { + buf := make([]byte, 4) + native.PutUint32(buf, n) + return newRtAttr(t, buf) +} + +type NetlinkRequest struct { + syscall.NlMsghdr + Data []NetlinkRequestData +} + +func (rr *NetlinkRequest) ToWireFormat() []byte { + length := rr.Len + dataBytes := make([][]byte, len(rr.Data)) + for i, data := range rr.Data { + dataBytes[i] = data.ToWireFormat() + length += uint32(len(dataBytes[i])) + } + b := make([]byte, length) + native.PutUint32(b[0:4], length) + native.PutUint16(b[4:6], rr.Type) + native.PutUint16(b[6:8], rr.Flags) + native.PutUint32(b[8:12], rr.Seq) + native.PutUint32(b[12:16], rr.Pid) + + next := 16 + for _, data := range dataBytes { + copy(b[next:], data) + next += len(data) + } + return b +} + +func (rr *NetlinkRequest) AddData(data NetlinkRequestData) { + if data != nil { + rr.Data = append(rr.Data, data) + } +} + +func newNetlinkRequest(proto, flags int) *NetlinkRequest { + return &NetlinkRequest{ + NlMsghdr: syscall.NlMsghdr{ + Len: uint32(syscall.NLMSG_HDRLEN), + Type: uint16(proto), + Flags: syscall.NLM_F_REQUEST | uint16(flags), + Seq: atomic.AddUint32(&nextSeqNr, 1), + }, + } +} + +type NetlinkSocket struct { + fd int + lsa syscall.SockaddrNetlink +} + +func getNetlinkSocket() (*NetlinkSocket, error) { + fd, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_RAW, syscall.NETLINK_ROUTE) + if err != nil { + return nil, err + } + s := &NetlinkSocket{ + fd: fd, + } + s.lsa.Family = syscall.AF_NETLINK + if err := syscall.Bind(fd, &s.lsa); err != nil { + syscall.Close(fd) + return nil, err + } + + return s, nil +} + +func (s *NetlinkSocket) Close() { + syscall.Close(s.fd) +} + +func (s *NetlinkSocket) Send(request *NetlinkRequest) error { + if err := syscall.Sendto(s.fd, request.ToWireFormat(), 0, &s.lsa); err != nil { + return err + } + return nil +} + +func (s *NetlinkSocket) Receive() ([]syscall.NetlinkMessage, error) { + rb := make([]byte, syscall.Getpagesize()) + nr, _, err := syscall.Recvfrom(s.fd, rb, 0) + if err != nil { + return nil, err + } + if nr < syscall.NLMSG_HDRLEN { + return nil, ErrShortResponse + } + rb = rb[:nr] + return syscall.ParseNetlinkMessage(rb) +} + +func (s *NetlinkSocket) GetPid() (uint32, error) { + lsa, err := syscall.Getsockname(s.fd) + if err != nil { + return 0, err + } + switch v := lsa.(type) { + case *syscall.SockaddrNetlink: + return v.Pid, nil + } + return 0, ErrWrongSockType +} + +func (s *NetlinkSocket) CheckMessage(m syscall.NetlinkMessage, seq, pid uint32) error { + if m.Header.Seq != seq { + return fmt.Errorf("netlink: invalid seq %d, expected %d", m.Header.Seq, seq) + } + if m.Header.Pid != pid { + return fmt.Errorf("netlink: wrong pid %d, expected %d", m.Header.Pid, pid) + } + if m.Header.Type == syscall.NLMSG_DONE { + return io.EOF + } + if m.Header.Type == syscall.NLMSG_ERROR { + e := int32(native.Uint32(m.Data[0:4])) + if e == 0 { + return io.EOF + } + return syscall.Errno(-e) + } + return nil +} + +func (s *NetlinkSocket) HandleAck(seq uint32) error { + pid, err := s.GetPid() + if err != nil { + return err + } + +outer: + for { + msgs, err := s.Receive() + if err != nil { + return err + } + for _, m := range msgs { + if err := s.CheckMessage(m, seq, pid); err != nil { + if err == io.EOF { + break outer + } + return err + } + } + } + + return nil +} + +func zeroTerminated(s string) []byte { + return []byte(s + "\000") +} + +func nonZeroTerminated(s string) []byte { + return []byte(s) +} + +// Add a new network link of a specified type. +// This is identical to running: ip link add $name type $linkType +func NetworkLinkAdd(name string, linkType string) error { + if name == "" || linkType == "" { + return fmt.Errorf("Neither link name nor link type can be empty!") + } + + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + wb.AddData(msg) + + linkInfo := newRtAttr(syscall.IFLA_LINKINFO, nil) + newRtAttrChild(linkInfo, IFLA_INFO_KIND, nonZeroTerminated(linkType)) + wb.AddData(linkInfo) + + nameData := newRtAttr(syscall.IFLA_IFNAME, zeroTerminated(name)) + wb.AddData(nameData) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Delete a network link. +// This is identical to running: ip link del $name +func NetworkLinkDel(name string) error { + if name == "" { + return fmt.Errorf("Network link name can not be empty!") + } + + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + iface, err := net.InterfaceByName(name) + if err != nil { + return err + } + + wb := newNetlinkRequest(syscall.RTM_DELLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + wb.AddData(msg) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Bring up a particular network interface. +// This is identical to running: ip link set dev $name up +func NetworkLinkUp(iface *net.Interface) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + msg.Flags = syscall.IFF_UP + msg.Change = syscall.IFF_UP + wb.AddData(msg) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Bring down a particular network interface. +// This is identical to running: ip link set $name down +func NetworkLinkDown(iface *net.Interface) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + msg.Flags = 0 & ^syscall.IFF_UP + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Set link layer address ie. MAC Address. +// This is identical to running: ip link set dev $name address $macaddress +func NetworkSetMacAddress(iface *net.Interface, macaddr string) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + hwaddr, err := net.ParseMAC(macaddr) + if err != nil { + return err + } + + var ( + MULTICAST byte = 0x1 + ) + + if hwaddr[0]&0x1 == MULTICAST { + return fmt.Errorf("Multicast MAC Address is not supported: %s", macaddr) + } + + wb := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + + macdata := make([]byte, 6) + copy(macdata, hwaddr) + data := newRtAttr(IFLA_ADDRESS, macdata) + wb.AddData(data) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +// Set link Maximum Transmission Unit +// This is identical to running: ip link set dev $name mtu $MTU +// bridge is a bitch here https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=292088 +// https://bugzilla.redhat.com/show_bug.cgi?id=697021 +// There is a discussion about how to deal with ifcs joining bridge with MTU > 1500 +// Regular network nterfaces do seem to work though! +func NetworkSetMTU(iface *net.Interface, mtu int) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Type = syscall.RTM_SETLINK + msg.Flags = syscall.NLM_F_REQUEST + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + wb.AddData(uint32Attr(syscall.IFLA_MTU, uint32(mtu))) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +// Set link queue length +// This is identical to running: ip link set dev $name txqueuelen $QLEN +func NetworkSetTxQueueLen(iface *net.Interface, txQueueLen int) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Type = syscall.RTM_SETLINK + msg.Flags = syscall.NLM_F_REQUEST + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + wb.AddData(uint32Attr(syscall.IFLA_TXQLEN, uint32(txQueueLen))) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +func networkMasterAction(iface *net.Interface, rtattr *RtAttr) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Type = syscall.RTM_SETLINK + msg.Flags = syscall.NLM_F_REQUEST + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + wb.AddData(rtattr) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Add an interface to bridge. +// This is identical to running: ip link set $name master $master +func NetworkSetMaster(iface, master *net.Interface) error { + data := uint32Attr(syscall.IFLA_MASTER, uint32(master.Index)) + return networkMasterAction(iface, data) +} + +// Remove an interface from the bridge +// This is is identical to to running: ip link $name set nomaster +func NetworkSetNoMaster(iface *net.Interface) error { + data := uint32Attr(syscall.IFLA_MASTER, 0) + return networkMasterAction(iface, data) +} + +func networkSetNsAction(iface *net.Interface, rtattr *RtAttr) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_ACK) + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + wb.AddData(msg) + wb.AddData(rtattr) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Move a particular network interface to a particular network namespace +// specified by PID. This is identical to running: ip link set dev $name netns $pid +func NetworkSetNsPid(iface *net.Interface, nspid int) error { + data := uint32Attr(syscall.IFLA_NET_NS_PID, uint32(nspid)) + return networkSetNsAction(iface, data) +} + +// Move a particular network interface to a particular mounted +// network namespace specified by file descriptor. +// This is idential to running: ip link set dev $name netns $fd +func NetworkSetNsFd(iface *net.Interface, fd int) error { + data := uint32Attr(IFLA_NET_NS_FD, uint32(fd)) + return networkSetNsAction(iface, data) +} + +// Rename a particular interface to a different name +// !!! Note that you can't rename an active interface. You need to bring it down before renaming it. +// This is identical to running: ip link set dev ${oldName} name ${newName} +func NetworkChangeName(iface *net.Interface, newName string) error { + if len(newName) >= IFNAMSIZ { + return fmt.Errorf("Interface name %s too long", newName) + } + + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + wb.AddData(msg) + + nameData := newRtAttr(syscall.IFLA_IFNAME, zeroTerminated(newName)) + wb.AddData(nameData) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Add a new VETH pair link on the host +// This is identical to running: ip link add name $name type veth peer name $peername +func NetworkCreateVethPair(name1, name2 string, txQueueLen int) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + wb.AddData(msg) + + nameData := newRtAttr(syscall.IFLA_IFNAME, zeroTerminated(name1)) + wb.AddData(nameData) + + txqLen := make([]byte, 4) + native.PutUint32(txqLen, uint32(txQueueLen)) + txqData := newRtAttr(syscall.IFLA_TXQLEN, txqLen) + wb.AddData(txqData) + + nest1 := newRtAttr(syscall.IFLA_LINKINFO, nil) + newRtAttrChild(nest1, IFLA_INFO_KIND, zeroTerminated("veth")) + nest2 := newRtAttrChild(nest1, IFLA_INFO_DATA, nil) + nest3 := newRtAttrChild(nest2, VETH_INFO_PEER, nil) + + newIfInfomsgChild(nest3, syscall.AF_UNSPEC) + newRtAttrChild(nest3, syscall.IFLA_IFNAME, zeroTerminated(name2)) + + txqLen2 := make([]byte, 4) + native.PutUint32(txqLen2, uint32(txQueueLen)) + newRtAttrChild(nest3, syscall.IFLA_TXQLEN, txqLen2) + + wb.AddData(nest1) + + if err := s.Send(wb); err != nil { + return err + } + + if err := s.HandleAck(wb.Seq); err != nil { + if os.IsExist(err) { + return ErrInterfaceExists + } + + return err + } + + return nil +} + +// Add a new VLAN interface with masterDev as its upper device +// This is identical to running: +// ip link add name $name link $masterdev type vlan id $id +func NetworkLinkAddVlan(masterDev, vlanDev string, vlanId uint16) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK) + + masterDevIfc, err := net.InterfaceByName(masterDev) + if err != nil { + return err + } + + msg := newIfInfomsg(syscall.AF_UNSPEC) + wb.AddData(msg) + + nest1 := newRtAttr(syscall.IFLA_LINKINFO, nil) + newRtAttrChild(nest1, IFLA_INFO_KIND, nonZeroTerminated("vlan")) + + nest2 := newRtAttrChild(nest1, IFLA_INFO_DATA, nil) + vlanData := make([]byte, 2) + native.PutUint16(vlanData, vlanId) + newRtAttrChild(nest2, IFLA_VLAN_ID, vlanData) + wb.AddData(nest1) + + wb.AddData(uint32Attr(syscall.IFLA_LINK, uint32(masterDevIfc.Index))) + wb.AddData(newRtAttr(syscall.IFLA_IFNAME, zeroTerminated(vlanDev))) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +// MacVlan link has LowerDev, UpperDev and operates in Mode mode +// This simplifies the code when creating MacVlan or MacVtap interface +type MacVlanLink struct { + MasterDev string + SlaveDev string + mode string +} + +func (m MacVlanLink) Mode() uint32 { + modeMap := map[string]uint32{ + "private": MACVLAN_MODE_PRIVATE, + "vepa": MACVLAN_MODE_VEPA, + "bridge": MACVLAN_MODE_BRIDGE, + "passthru": MACVLAN_MODE_PASSTHRU, + } + + return modeMap[m.mode] +} + +// Add MAC VLAN network interface with masterDev as its upper device +// This is identical to running: +// ip link add name $name link $masterdev type macvlan mode $mode +func networkLinkMacVlan(dev_type string, mcvln *MacVlanLink) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWLINK, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK) + + masterDevIfc, err := net.InterfaceByName(mcvln.MasterDev) + if err != nil { + return err + } + + msg := newIfInfomsg(syscall.AF_UNSPEC) + wb.AddData(msg) + + nest1 := newRtAttr(syscall.IFLA_LINKINFO, nil) + newRtAttrChild(nest1, IFLA_INFO_KIND, nonZeroTerminated(dev_type)) + + nest2 := newRtAttrChild(nest1, IFLA_INFO_DATA, nil) + macVlanData := make([]byte, 4) + native.PutUint32(macVlanData, mcvln.Mode()) + newRtAttrChild(nest2, IFLA_MACVLAN_MODE, macVlanData) + wb.AddData(nest1) + + wb.AddData(uint32Attr(syscall.IFLA_LINK, uint32(masterDevIfc.Index))) + wb.AddData(newRtAttr(syscall.IFLA_IFNAME, zeroTerminated(mcvln.SlaveDev))) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +func NetworkLinkAddMacVlan(masterDev, macVlanDev string, mode string) error { + return networkLinkMacVlan("macvlan", &MacVlanLink{ + MasterDev: masterDev, + SlaveDev: macVlanDev, + mode: mode, + }) +} + +func NetworkLinkAddMacVtap(masterDev, macVlanDev string, mode string) error { + return networkLinkMacVlan("macvtap", &MacVlanLink{ + MasterDev: masterDev, + SlaveDev: macVlanDev, + mode: mode, + }) +} + +func networkLinkIpAction(action, flags int, ifa IfAddr) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + family := getIpFamily(ifa.IP) + + wb := newNetlinkRequest(action, flags) + + msg := newIfAddrmsg(family) + msg.Index = uint32(ifa.Iface.Index) + prefixLen, _ := ifa.IPNet.Mask.Size() + msg.Prefixlen = uint8(prefixLen) + wb.AddData(msg) + + var ipData []byte + if family == syscall.AF_INET { + ipData = ifa.IP.To4() + } else { + ipData = ifa.IP.To16() + } + + localData := newRtAttr(syscall.IFA_LOCAL, ipData) + wb.AddData(localData) + + addrData := newRtAttr(syscall.IFA_ADDRESS, ipData) + wb.AddData(addrData) + + if err := s.Send(wb); err != nil { + return err + } + + return s.HandleAck(wb.Seq) +} + +// Delete an IP address from an interface. This is identical to: +// ip addr del $ip/$ipNet dev $iface +func NetworkLinkDelIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error { + return networkLinkIpAction( + syscall.RTM_DELADDR, + syscall.NLM_F_ACK, + IfAddr{iface, ip, ipNet}, + ) +} + +// Add an Ip address to an interface. This is identical to: +// ip addr add $ip/$ipNet dev $iface +func NetworkLinkAddIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error { + return networkLinkIpAction( + syscall.RTM_NEWADDR, + syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK, + IfAddr{iface, ip, ipNet}, + ) +} + +// Returns an array of IPNet for all the currently routed subnets on ipv4 +// This is similar to the first column of "ip route" output +func NetworkGetRoutes() ([]Route, error) { + s, err := getNetlinkSocket() + if err != nil { + return nil, err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_GETROUTE, syscall.NLM_F_DUMP) + + msg := newIfInfomsg(syscall.AF_UNSPEC) + wb.AddData(msg) + + if err := s.Send(wb); err != nil { + return nil, err + } + + pid, err := s.GetPid() + if err != nil { + return nil, err + } + + res := make([]Route, 0) + +outer: + for { + msgs, err := s.Receive() + if err != nil { + return nil, err + } + for _, m := range msgs { + if err := s.CheckMessage(m, wb.Seq, pid); err != nil { + if err == io.EOF { + break outer + } + return nil, err + } + if m.Header.Type != syscall.RTM_NEWROUTE { + continue + } + + var r Route + + msg := (*RtMsg)(unsafe.Pointer(&m.Data[0:syscall.SizeofRtMsg][0])) + + if msg.Flags&syscall.RTM_F_CLONED != 0 { + // Ignore cloned routes + continue + } + + if msg.Table != syscall.RT_TABLE_MAIN { + // Ignore non-main tables + continue + } + + if msg.Family != syscall.AF_INET { + // Ignore non-ipv4 routes + continue + } + + if msg.Dst_len == 0 { + // Default routes + r.Default = true + } + + attrs, err := syscall.ParseNetlinkRouteAttr(&m) + if err != nil { + return nil, err + } + for _, attr := range attrs { + switch attr.Attr.Type { + case syscall.RTA_DST: + ip := attr.Value + r.IPNet = &net.IPNet{ + IP: ip, + Mask: net.CIDRMask(int(msg.Dst_len), 8*len(ip)), + } + case syscall.RTA_OIF: + index := int(native.Uint32(attr.Value[0:4])) + r.Iface, _ = net.InterfaceByIndex(index) + } + } + if r.Default || r.IPNet != nil { + res = append(res, r) + } + } + } + + return res, nil +} + +// Add a new route table entry. +func AddRoute(destination, source, gateway, device string) error { + if destination == "" && source == "" && gateway == "" { + return fmt.Errorf("one of destination, source or gateway must not be blank") + } + + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + + wb := newNetlinkRequest(syscall.RTM_NEWROUTE, syscall.NLM_F_CREATE|syscall.NLM_F_EXCL|syscall.NLM_F_ACK) + msg := newRtMsg() + currentFamily := -1 + var rtAttrs []*RtAttr + + if destination != "" { + destIP, destNet, err := net.ParseCIDR(destination) + if err != nil { + return fmt.Errorf("destination CIDR %s couldn't be parsed", destination) + } + destFamily := getIpFamily(destIP) + currentFamily = destFamily + destLen, bits := destNet.Mask.Size() + if destLen == 0 && bits == 0 { + return fmt.Errorf("destination CIDR %s generated a non-canonical Mask", destination) + } + msg.Family = uint8(destFamily) + msg.Dst_len = uint8(destLen) + var destData []byte + if destFamily == syscall.AF_INET { + destData = destIP.To4() + } else { + destData = destIP.To16() + } + rtAttrs = append(rtAttrs, newRtAttr(syscall.RTA_DST, destData)) + } + + if source != "" { + srcIP := net.ParseIP(source) + if srcIP == nil { + return fmt.Errorf("source IP %s couldn't be parsed", source) + } + srcFamily := getIpFamily(srcIP) + if currentFamily != -1 && currentFamily != srcFamily { + return fmt.Errorf("source and destination ip were not the same IP family") + } + currentFamily = srcFamily + msg.Family = uint8(srcFamily) + var srcData []byte + if srcFamily == syscall.AF_INET { + srcData = srcIP.To4() + } else { + srcData = srcIP.To16() + } + rtAttrs = append(rtAttrs, newRtAttr(syscall.RTA_PREFSRC, srcData)) + } + + if gateway != "" { + gwIP := net.ParseIP(gateway) + if gwIP == nil { + return fmt.Errorf("gateway IP %s couldn't be parsed", gateway) + } + gwFamily := getIpFamily(gwIP) + if currentFamily != -1 && currentFamily != gwFamily { + return fmt.Errorf("gateway, source, and destination ip were not the same IP family") + } + msg.Family = uint8(gwFamily) + var gwData []byte + if gwFamily == syscall.AF_INET { + gwData = gwIP.To4() + } else { + gwData = gwIP.To16() + } + rtAttrs = append(rtAttrs, newRtAttr(syscall.RTA_GATEWAY, gwData)) + } + + wb.AddData(msg) + for _, attr := range rtAttrs { + wb.AddData(attr) + } + + iface, err := net.InterfaceByName(device) + if err != nil { + return err + } + wb.AddData(uint32Attr(syscall.RTA_OIF, uint32(iface.Index))) + + if err := s.Send(wb); err != nil { + return err + } + return s.HandleAck(wb.Seq) +} + +// Add a new default gateway. Identical to: +// ip route add default via $ip +func AddDefaultGw(ip, device string) error { + return AddRoute("", "", ip, device) +} + +// THIS CODE DOES NOT COMMUNICATE WITH KERNEL VIA RTNETLINK INTERFACE +// IT IS HERE FOR BACKWARDS COMPATIBILITY WITH OLDER LINUX KERNELS +// WHICH SHIP WITH OLDER NOT ENTIRELY FUNCTIONAL VERSION OF NETLINK +func getIfSocket() (fd int, err error) { + for _, socket := range []int{ + syscall.AF_INET, + syscall.AF_PACKET, + syscall.AF_INET6, + } { + if fd, err = syscall.Socket(socket, syscall.SOCK_DGRAM, 0); err == nil { + break + } + } + if err == nil { + return fd, nil + } + return -1, err +} + +// Create the actual bridge device. This is more backward-compatible than +// netlink.NetworkLinkAdd and works on RHEL 6. +func CreateBridge(name string, setMacAddr bool) error { + if len(name) >= IFNAMSIZ { + return fmt.Errorf("Interface name %s too long", name) + } + + s, err := getIfSocket() + if err != nil { + return err + } + defer syscall.Close(s) + + nameBytePtr, err := syscall.BytePtrFromString(name) + if err != nil { + return err + } + if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), SIOC_BRADDBR, uintptr(unsafe.Pointer(nameBytePtr))); err != 0 { + return err + } + if setMacAddr { + return SetMacAddress(name, randMacAddr()) + } + return nil +} + +// Delete the actual bridge device. +func DeleteBridge(name string) error { + s, err := getIfSocket() + if err != nil { + return err + } + defer syscall.Close(s) + + nameBytePtr, err := syscall.BytePtrFromString(name) + if err != nil { + return err + } + + var ifr ifreqFlags + copy(ifr.IfrnName[:len(ifr.IfrnName)-1], []byte(name)) + if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), + syscall.SIOCSIFFLAGS, uintptr(unsafe.Pointer(&ifr))); err != 0 { + return err + } + + if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), + SIOC_BRDELBR, uintptr(unsafe.Pointer(nameBytePtr))); err != 0 { + return err + } + return nil +} + +func ifIoctBridge(iface, master *net.Interface, op uintptr) error { + if len(master.Name) >= IFNAMSIZ { + return fmt.Errorf("Interface name %s too long", master.Name) + } + + s, err := getIfSocket() + if err != nil { + return err + } + defer syscall.Close(s) + + ifr := ifreqIndex{} + copy(ifr.IfrnName[:len(ifr.IfrnName)-1], master.Name) + ifr.IfruIndex = int32(iface.Index) + + if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), op, uintptr(unsafe.Pointer(&ifr))); err != 0 { + return err + } + + return nil +} + +// Add a slave to a bridge device. This is more backward-compatible than +// netlink.NetworkSetMaster and works on RHEL 6. +func AddToBridge(iface, master *net.Interface) error { + return ifIoctBridge(iface, master, SIOC_BRADDIF) +} + +// Detach a slave from a bridge device. This is more backward-compatible than +// netlink.NetworkSetMaster and works on RHEL 6. +func DelFromBridge(iface, master *net.Interface) error { + return ifIoctBridge(iface, master, SIOC_BRDELIF) +} + +func randMacAddr() string { + hw := make(net.HardwareAddr, 6) + for i := 0; i < 6; i++ { + hw[i] = byte(rnd.Intn(255)) + } + hw[0] &^= 0x1 // clear multicast bit + hw[0] |= 0x2 // set local assignment bit (IEEE802) + return hw.String() +} + +func SetMacAddress(name, addr string) error { + if len(name) >= IFNAMSIZ { + return fmt.Errorf("Interface name %s too long", name) + } + + hw, err := net.ParseMAC(addr) + if err != nil { + return err + } + + s, err := getIfSocket() + if err != nil { + return err + } + defer syscall.Close(s) + + ifr := ifreqHwaddr{} + ifr.IfruHwaddr.Family = syscall.ARPHRD_ETHER + copy(ifr.IfrnName[:len(ifr.IfrnName)-1], name) + + for i := 0; i < 6; i++ { + ifr.IfruHwaddr.Data[i] = ifrDataByte(hw[i]) + } + + if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(s), syscall.SIOCSIFHWADDR, uintptr(unsafe.Pointer(&ifr))); err != 0 { + return err + } + return nil +} + +func SetHairpinMode(iface *net.Interface, enabled bool) error { + s, err := getNetlinkSocket() + if err != nil { + return err + } + defer s.Close() + req := newNetlinkRequest(syscall.RTM_SETLINK, syscall.NLM_F_ACK) + + msg := newIfInfomsg(syscall.AF_BRIDGE) + msg.Type = syscall.RTM_SETLINK + msg.Flags = syscall.NLM_F_REQUEST + msg.Index = int32(iface.Index) + msg.Change = DEFAULT_CHANGE + req.AddData(msg) + + mode := []byte{0} + if enabled { + mode[0] = byte(1) + } + + br := newRtAttr(syscall.IFLA_PROTINFO|syscall.NLA_F_NESTED, nil) + newRtAttrChild(br, IFLA_BRPORT_MODE, mode) + req.AddData(br) + if err := s.Send(req); err != nil { + return err + } + + return s.HandleAck(req.Seq) +} + +func ChangeName(iface *net.Interface, newName string) error { + if len(newName) >= IFNAMSIZ { + return fmt.Errorf("Interface name %s too long", newName) + } + + fd, err := getIfSocket() + if err != nil { + return err + } + defer syscall.Close(fd) + + data := [IFNAMSIZ * 2]byte{} + // the "-1"s here are very important for ensuring we get proper null + // termination of our new C strings + copy(data[:IFNAMSIZ-1], iface.Name) + copy(data[IFNAMSIZ:IFNAMSIZ*2-1], newName) + + if _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), syscall.SIOCSIFNAME, uintptr(unsafe.Pointer(&data[0]))); errno != 0 { + return errno + } + + return nil +} diff --git a/vendor/github.com/docker/libcontainer/netlink/netlink_linux_armppc64.go b/vendor/github.com/docker/libcontainer/netlink/netlink_linux_armppc64.go new file mode 100644 index 0000000..965e0bf --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/netlink_linux_armppc64.go @@ -0,0 +1,7 @@ +// +build arm ppc64 ppc64le + +package netlink + +func ifrDataByte(b byte) uint8 { + return uint8(b) +} diff --git a/vendor/github.com/docker/libcontainer/netlink/netlink_linux_notarm.go b/vendor/github.com/docker/libcontainer/netlink/netlink_linux_notarm.go new file mode 100644 index 0000000..7446279 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/netlink_linux_notarm.go @@ -0,0 +1,7 @@ +// +build !arm,!ppc64,!ppc64le + +package netlink + +func ifrDataByte(b byte) int8 { + return int8(b) +} diff --git a/vendor/github.com/docker/libcontainer/netlink/netlink_unsupported.go b/vendor/github.com/docker/libcontainer/netlink/netlink_unsupported.go new file mode 100644 index 0000000..4b11bf8 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/netlink/netlink_unsupported.go @@ -0,0 +1,88 @@ +// +build !linux + +package netlink + +import ( + "errors" + "net" +) + +var ( + ErrNotImplemented = errors.New("not implemented") +) + +func NetworkGetRoutes() ([]Route, error) { + return nil, ErrNotImplemented +} + +func NetworkLinkAdd(name string, linkType string) error { + return ErrNotImplemented +} + +func NetworkLinkDel(name string) error { + return ErrNotImplemented +} + +func NetworkLinkUp(iface *net.Interface) error { + return ErrNotImplemented +} + +func NetworkLinkAddIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error { + return ErrNotImplemented +} + +func NetworkLinkDelIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error { + return ErrNotImplemented +} + +func AddRoute(destination, source, gateway, device string) error { + return ErrNotImplemented +} + +func AddDefaultGw(ip, device string) error { + return ErrNotImplemented +} + +func NetworkSetMTU(iface *net.Interface, mtu int) error { + return ErrNotImplemented +} + +func NetworkSetTxQueueLen(iface *net.Interface, txQueueLen int) error { + return ErrNotImplemented +} + +func NetworkCreateVethPair(name1, name2 string, txQueueLen int) error { + return ErrNotImplemented +} + +func NetworkChangeName(iface *net.Interface, newName string) error { + return ErrNotImplemented +} + +func NetworkSetNsFd(iface *net.Interface, fd int) error { + return ErrNotImplemented +} + +func NetworkSetNsPid(iface *net.Interface, nspid int) error { + return ErrNotImplemented +} + +func NetworkSetMaster(iface, master *net.Interface) error { + return ErrNotImplemented +} + +func NetworkLinkDown(iface *net.Interface) error { + return ErrNotImplemented +} + +func CreateBridge(name string, setMacAddr bool) error { + return ErrNotImplemented +} + +func DeleteBridge(name string) error { + return ErrNotImplemented +} + +func AddToBridge(iface, master *net.Interface) error { + return ErrNotImplemented +} diff --git a/vendor/github.com/docker/libcontainer/system/linux.go b/vendor/github.com/docker/libcontainer/system/linux.go new file mode 100644 index 0000000..2cc3ef8 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/linux.go @@ -0,0 +1,77 @@ +// +build linux + +package system + +import ( + "os/exec" + "syscall" + "unsafe" +) + +type ParentDeathSignal int + +func (p ParentDeathSignal) Restore() error { + if p == 0 { + return nil + } + current, err := GetParentDeathSignal() + if err != nil { + return err + } + if p == current { + return nil + } + return p.Set() +} + +func (p ParentDeathSignal) Set() error { + return SetParentDeathSignal(uintptr(p)) +} + +func Execv(cmd string, args []string, env []string) error { + name, err := exec.LookPath(cmd) + if err != nil { + return err + } + + return syscall.Exec(name, args, env) +} + +func SetParentDeathSignal(sig uintptr) error { + if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_PDEATHSIG, sig, 0); err != 0 { + return err + } + return nil +} + +func GetParentDeathSignal() (ParentDeathSignal, error) { + var sig int + _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0) + if err != 0 { + return -1, err + } + return ParentDeathSignal(sig), nil +} + +func SetKeepCaps() error { + if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 1, 0); err != 0 { + return err + } + + return nil +} + +func ClearKeepCaps() error { + if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 0, 0); err != 0 { + return err + } + + return nil +} + +func Setctty() error { + if _, _, err := syscall.RawSyscall(syscall.SYS_IOCTL, 0, uintptr(syscall.TIOCSCTTY), 0); err != 0 { + return err + } + return nil +} diff --git a/vendor/github.com/docker/libcontainer/system/proc.go b/vendor/github.com/docker/libcontainer/system/proc.go new file mode 100644 index 0000000..37808a2 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/proc.go @@ -0,0 +1,27 @@ +package system + +import ( + "io/ioutil" + "path/filepath" + "strconv" + "strings" +) + +// look in /proc to find the process start time so that we can verify +// that this pid has started after ourself +func GetProcessStartTime(pid int) (string, error) { + data, err := ioutil.ReadFile(filepath.Join("/proc", strconv.Itoa(pid), "stat")) + if err != nil { + return "", err + } + + parts := strings.Split(string(data), " ") + // the starttime is located at pos 22 + // from the man page + // + // starttime %llu (was %lu before Linux 2.6) + // (22) The time the process started after system boot. In kernels before Linux 2.6, this + // value was expressed in jiffies. Since Linux 2.6, the value is expressed in clock ticks + // (divide by sysconf(_SC_CLK_TCK)). + return parts[22-1], nil // starts at 1 +} diff --git a/vendor/github.com/docker/libcontainer/system/setns_linux.go b/vendor/github.com/docker/libcontainer/system/setns_linux.go new file mode 100644 index 0000000..615ff4c --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/setns_linux.go @@ -0,0 +1,40 @@ +package system + +import ( + "fmt" + "runtime" + "syscall" +) + +// Via http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b21fddd087678a70ad64afc0f632e0f1071b092 +// +// We need different setns values for the different platforms and arch +// We are declaring the macro here because the SETNS syscall does not exist in th stdlib +var setNsMap = map[string]uintptr{ + "linux/386": 346, + "linux/arm64": 268, + "linux/amd64": 308, + "linux/arm": 375, + "linux/ppc": 350, + "linux/ppc64": 350, + "linux/ppc64le": 350, + "linux/s390x": 339, +} + +var sysSetns = setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)] + +func SysSetns() uint32 { + return uint32(sysSetns) +} + +func Setns(fd uintptr, flags uintptr) error { + ns, exists := setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)] + if !exists { + return fmt.Errorf("unsupported platform %s/%s", runtime.GOOS, runtime.GOARCH) + } + _, _, err := syscall.RawSyscall(ns, fd, flags, 0) + if err != 0 { + return err + } + return nil +} diff --git a/vendor/github.com/docker/libcontainer/system/syscall_linux_386.go b/vendor/github.com/docker/libcontainer/system/syscall_linux_386.go new file mode 100644 index 0000000..2fcbf21 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/syscall_linux_386.go @@ -0,0 +1,24 @@ +// +build linux,386 +package system + +import ( + "syscall" +) + +// Setuid sets the uid of the calling thread to the specified uid. +func Setuid(uid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID, uintptr(uid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} + +// Setgid sets the gid of the calling thread to the specified gid. +func Setgid(gid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} diff --git a/vendor/github.com/docker/libcontainer/system/syscall_linux_64.go b/vendor/github.com/docker/libcontainer/system/syscall_linux_64.go new file mode 100644 index 0000000..0816bf8 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/syscall_linux_64.go @@ -0,0 +1,25 @@ +// +build linux,arm64 linux,amd64 linux,ppc linux,ppc64 linux,ppc64le linux,s390x + +package system + +import ( + "syscall" +) + +// Setuid sets the uid of the calling thread to the specified uid. +func Setuid(uid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID, uintptr(uid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} + +// Setgid sets the gid of the calling thread to the specified gid. +func Setgid(gid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID, uintptr(gid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} diff --git a/vendor/github.com/docker/libcontainer/system/syscall_linux_arm.go b/vendor/github.com/docker/libcontainer/system/syscall_linux_arm.go new file mode 100644 index 0000000..7d8cda9 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/syscall_linux_arm.go @@ -0,0 +1,24 @@ +// +build linux,arm +package system + +import ( + "syscall" +) + +// Setuid sets the uid of the calling thread to the specified uid. +func Setuid(uid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID32, uintptr(uid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} + +// Setgid sets the gid of the calling thread to the specified gid. +func Setgid(gid int) (err error) { + _, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0) + if e1 != 0 { + err = e1 + } + return +} diff --git a/vendor/github.com/docker/libcontainer/system/sysconfig.go b/vendor/github.com/docker/libcontainer/system/sysconfig.go new file mode 100644 index 0000000..b3a07cb --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/sysconfig.go @@ -0,0 +1,12 @@ +// +build cgo,linux cgo,freebsd + +package system + +/* +#include +*/ +import "C" + +func GetClockTicks() int { + return int(C.sysconf(C._SC_CLK_TCK)) +} diff --git a/vendor/github.com/docker/libcontainer/system/sysconfig_notcgo.go b/vendor/github.com/docker/libcontainer/system/sysconfig_notcgo.go new file mode 100644 index 0000000..d93b5d5 --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/sysconfig_notcgo.go @@ -0,0 +1,15 @@ +// +build !cgo windows + +package system + +func GetClockTicks() int { + // TODO figure out a better alternative for platforms where we're missing cgo + // + // TODO Windows. This could be implemented using Win32 QueryPerformanceFrequency(). + // https://msdn.microsoft.com/en-us/library/windows/desktop/ms644905(v=vs.85).aspx + // + // An example of its usage can be found here. + // https://msdn.microsoft.com/en-us/library/windows/desktop/dn553408(v=vs.85).aspx + + return 100 +} diff --git a/vendor/github.com/docker/libcontainer/system/xattrs_linux.go b/vendor/github.com/docker/libcontainer/system/xattrs_linux.go new file mode 100644 index 0000000..30f74df --- /dev/null +++ b/vendor/github.com/docker/libcontainer/system/xattrs_linux.go @@ -0,0 +1,99 @@ +package system + +import ( + "syscall" + "unsafe" +) + +var _zero uintptr + +// Returns the size of xattrs and nil error +// Requires path, takes allocated []byte or nil as last argument +func Llistxattr(path string, dest []byte) (size int, err error) { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return -1, err + } + var newpathBytes unsafe.Pointer + if len(dest) > 0 { + newpathBytes = unsafe.Pointer(&dest[0]) + } else { + newpathBytes = unsafe.Pointer(&_zero) + } + + _size, _, errno := syscall.Syscall6(syscall.SYS_LLISTXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(newpathBytes), uintptr(len(dest)), 0, 0, 0) + size = int(_size) + if errno != 0 { + return -1, errno + } + + return size, nil +} + +// Returns a []byte slice if the xattr is set and nil otherwise +// Requires path and its attribute as arguments +func Lgetxattr(path string, attr string) ([]byte, error) { + var sz int + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return nil, err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return nil, err + } + + // Start with a 128 length byte array + sz = 128 + dest := make([]byte, sz) + destBytes := unsafe.Pointer(&dest[0]) + _sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + + switch { + case errno == syscall.ENODATA: + return nil, errno + case errno == syscall.ENOTSUP: + return nil, errno + case errno == syscall.ERANGE: + // 128 byte array might just not be good enough, + // A dummy buffer is used ``uintptr(0)`` to get real size + // of the xattrs on disk + _sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(unsafe.Pointer(nil)), uintptr(0), 0, 0) + sz = int(_sz) + if sz < 0 { + return nil, errno + } + dest = make([]byte, sz) + destBytes := unsafe.Pointer(&dest[0]) + _sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + if errno != 0 { + return nil, errno + } + case errno != 0: + return nil, errno + } + sz = int(_sz) + return dest[:sz], nil +} + +func Lsetxattr(path string, attr string, data []byte, flags int) error { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return err + } + var dataBytes unsafe.Pointer + if len(data) > 0 { + dataBytes = unsafe.Pointer(&data[0]) + } else { + dataBytes = unsafe.Pointer(&_zero) + } + _, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0) + if errno != 0 { + return errno + } + return nil +} diff --git a/vendor/github.com/go-ping/ping/.editorconfig b/vendor/github.com/go-ping/ping/.editorconfig new file mode 100644 index 0000000..57abfdc --- /dev/null +++ b/vendor/github.com/go-ping/ping/.editorconfig @@ -0,0 +1,16 @@ +# https://editorconfig.org + +root = true + +[*] +end_of_line = lf +insert_final_newline = true +trim_trailing_whitespace = true +charset = utf-8 +indent_style = space + +[Makefile] +indent_style = tab + +[*.go] +indent_style = tab diff --git a/vendor/github.com/go-ping/ping/.gitignore b/vendor/github.com/go-ping/ping/.gitignore new file mode 100644 index 0000000..f527a0e --- /dev/null +++ b/vendor/github.com/go-ping/ping/.gitignore @@ -0,0 +1,2 @@ +/ping +/dist diff --git a/vendor/github.com/go-ping/ping/.golangci.yml b/vendor/github.com/go-ping/ping/.golangci.yml new file mode 100644 index 0000000..eb311f8 --- /dev/null +++ b/vendor/github.com/go-ping/ping/.golangci.yml @@ -0,0 +1,6 @@ +--- +issues: + exclude-rules: + - path: _test.go + linters: + - errcheck diff --git a/vendor/github.com/go-ping/ping/.goreleaser.yml b/vendor/github.com/go-ping/ping/.goreleaser.yml new file mode 100644 index 0000000..3c5cc0a --- /dev/null +++ b/vendor/github.com/go-ping/ping/.goreleaser.yml @@ -0,0 +1,46 @@ +project_name: ping +before: + hooks: + - go mod download +builds: +- binary: ping + dir: cmd/ping + goarch: + - amd64 + - arm + - arm64 + goarm: + - 6 + - 7 + goos: + - darwin + - freebsd + - linux + - windows +archives: +- files: + - LICENSE + - README.md + format_overrides: + - goos: windows + format: zip + wrap_in_directory: true +# TODO: Decide if we want packages (name conflcits with /bin/ping?) +# nfpms: +# homepage: https://github.com/go-ping/ping +# maintainer: 'Go Ping Maintainers ' +# description: Ping written in Go. +# license: MIT +# formats: +# - deb +# - rpm +checksum: + name_template: 'checksums.txt' +snapshot: + name_template: "{{ .Tag }}-{{ .ShortCommit }}" +changelog: + sort: asc + filters: + exclude: + - '^docs:' + - '^test:' diff --git a/vendor/github.com/go-ping/ping/CONTRIBUTING.md b/vendor/github.com/go-ping/ping/CONTRIBUTING.md new file mode 100644 index 0000000..001998d --- /dev/null +++ b/vendor/github.com/go-ping/ping/CONTRIBUTING.md @@ -0,0 +1,44 @@ +# Contributing + +First off, thanks for taking the time to contribute! + +Remember that this is open source software so please consider the other people who will read your code. +Make it look nice for them, document your logic in comments and add or update the unit test cases. + +This library is used by various other projects, companies and individuals in live production environments so please discuss any breaking changes with us before making them. +Feel free to join us in the #go-ping channel of the [Gophers Slack](https://invite.slack.golangbridge.org/). + +## Pull Requests + +[Fork the repo on GitHub](https://github.com/go-ping/ping/fork) and clone it to your local machine. + +```bash +git clone https://github.com/YOUR_USERNAME/ping.git && cd ping +``` + +Here is a guide on [how to configure a remote repository](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/configuring-a-remote-for-a-fork). + +Check out a new branch, make changes, run tests, commit & sign-off, then push branch to your fork. + +```bash +$ git checkout -b +# edit files +$ make style vet test +$ git add +$ git commit -s +$ git push +``` + +Open a [new pull request](https://github.com/go-ping/ping/compare) in the main `go-ping/ping` repository. +Please describe the purpose of your PR and remember link it to any related issues. + +*We may ask you to rebase your feature branch or squash the commits in order to keep the history clean.* + +## Development Guides + +- Run `make style vet test` before committing your changes. +- Document your logic in code comments. +- Add tests for bug fixes and new features. +- Use UNIX-style (LF) line endings. +- End every file with a single blank line. +- Use the UTF-8 character set. diff --git a/vendor/github.com/go-ping/ping/LICENSE b/vendor/github.com/go-ping/ping/LICENSE new file mode 100644 index 0000000..5584bb0 --- /dev/null +++ b/vendor/github.com/go-ping/ping/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Cameron Sparr and contributors. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/go-ping/ping/Makefile b/vendor/github.com/go-ping/ping/Makefile new file mode 100644 index 0000000..d4b4bce --- /dev/null +++ b/vendor/github.com/go-ping/ping/Makefile @@ -0,0 +1,32 @@ +GO ?= go +GOFMT ?= $(GO)fmt +GOOPTS ?= +GO111MODULE := +pkgs = ./... + +all: style vet build test + +.PHONY: build +build: + @echo ">> building ping" + GO111MODULE=$(GO111MODULE) $(GO) build $(GOOPTS) ./cmd/ping + +.PHONY: style +style: + @echo ">> checking code style" + @fmtRes=$$($(GOFMT) -d $$(find . -path ./vendor -prune -o -name '*.go' -print)); \ + if [ -n "$${fmtRes}" ]; then \ + echo "gofmt checking failed!"; echo "$${fmtRes}"; echo; \ + echo "Please ensure you are using $$($(GO) version) for formatting code."; \ + exit 1; \ + fi + +.PHONY: test +test: + @echo ">> running all tests" + GO111MODULE=$(GO111MODULE) $(GO) test -race -cover $(GOOPTS) $(pkgs) + +.PHONY: vet +vet: + @echo ">> vetting code" + GO111MODULE=$(GO111MODULE) $(GO) vet $(GOOPTS) $(pkgs) diff --git a/vendor/github.com/go-ping/ping/README.md b/vendor/github.com/go-ping/ping/README.md new file mode 100644 index 0000000..8074587 --- /dev/null +++ b/vendor/github.com/go-ping/ping/README.md @@ -0,0 +1,141 @@ +# go-ping +[![PkgGoDev](https://pkg.go.dev/badge/github.com/go-ping/ping)](https://pkg.go.dev/github.com/go-ping/ping) +[![Circle CI](https://circleci.com/gh/go-ping/ping.svg?style=svg)](https://circleci.com/gh/go-ping/ping) + +A simple but powerful ICMP echo (ping) library for Go, inspired by +[go-fastping](https://github.com/tatsushid/go-fastping). + +Here is a very simple example that sends and receives three packets: + +```go +pinger, err := ping.NewPinger("www.google.com") +if err != nil { + panic(err) +} +pinger.Count = 3 +err = pinger.Run() // Blocks until finished. +if err != nil { + panic(err) +} +stats := pinger.Statistics() // get send/receive/duplicate/rtt stats +``` + +Here is an example that emulates the traditional UNIX ping command: + +```go +pinger, err := ping.NewPinger("www.google.com") +if err != nil { + panic(err) +} + +// Listen for Ctrl-C. +c := make(chan os.Signal, 1) +signal.Notify(c, os.Interrupt) +go func() { + for _ = range c { + pinger.Stop() + } +}() + +pinger.OnRecv = func(pkt *ping.Packet) { + fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v\n", + pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt) +} + +pinger.OnDuplicateRecv = func(pkt *ping.Packet) { + fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v ttl=%v (DUP!)\n", + pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt, pkt.Ttl) +} + +pinger.OnFinish = func(stats *ping.Statistics) { + fmt.Printf("\n--- %s ping statistics ---\n", stats.Addr) + fmt.Printf("%d packets transmitted, %d packets received, %v%% packet loss\n", + stats.PacketsSent, stats.PacketsRecv, stats.PacketLoss) + fmt.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n", + stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt) +} + +fmt.Printf("PING %s (%s):\n", pinger.Addr(), pinger.IPAddr()) +err = pinger.Run() +if err != nil { + panic(err) +} +``` + +It sends ICMP Echo Request packet(s) and waits for an Echo Reply in +response. If it receives a response, it calls the `OnRecv` callback +unless a packet with that sequence number has already been received, +in which case it calls the `OnDuplicateRecv` callback. When it's +finished, it calls the `OnFinish` callback. + +For a full ping example, see +[cmd/ping/ping.go](https://github.com/go-ping/ping/blob/master/cmd/ping/ping.go). + +## Installation + +``` +go get -u github.com/go-ping/ping +``` + +To install the native Go ping executable: + +```bash +go get -u github.com/go-ping/ping/... +$GOPATH/bin/ping +``` + +## Supported Operating Systems + +### Linux +This library attempts to send an "unprivileged" ping via UDP. On Linux, +this must be enabled with the following sysctl command: + +``` +sudo sysctl -w net.ipv4.ping_group_range="0 2147483647" +``` + +If you do not wish to do this, you can call `pinger.SetPrivileged(true)` +in your code and then use setcap on your binary to allow it to bind to +raw sockets (or just run it as root): + +``` +setcap cap_net_raw=+ep /path/to/your/compiled/binary +``` + +See [this blog](https://sturmflut.github.io/linux/ubuntu/2015/01/17/unprivileged-icmp-sockets-on-linux/) +and the Go [x/net/icmp](https://godoc.org/golang.org/x/net/icmp) package +for more details. + +### Windows + +You must use `pinger.SetPrivileged(true)`, otherwise you will receive +the following error: + +``` +socket: The requested protocol has not been configured into the system, or no implementation for it exists. +``` + +Despite the method name, this should work without the need to elevate +privileges and has been tested on Windows 10. Please note that accessing +packet TTL values is not supported due to limitations in the Go +x/net/ipv4 and x/net/ipv6 packages. + +### Plan 9 from Bell Labs + +There is no support for Plan 9. This is because the entire `x/net/ipv4` +and `x/net/ipv6` packages are not implemented by the Go programming +language. + +## Maintainers and Getting Help: + +This repo was originally in the personal account of +[sparrc](https://github.com/sparrc), but is now maintained by the +[go-ping organization](https://github.com/go-ping). + +For support and help, you usually find us in the #go-ping channel of +Gophers Slack. See https://invite.slack.golangbridge.org/ for an invite +to the Gophers Slack org. + +## Contributing + +Refer to [CONTRIBUTING.md](https://github.com/go-ping/ping/blob/master/CONTRIBUTING.md) diff --git a/vendor/github.com/go-ping/ping/logger.go b/vendor/github.com/go-ping/ping/logger.go new file mode 100644 index 0000000..be3d4fa --- /dev/null +++ b/vendor/github.com/go-ping/ping/logger.go @@ -0,0 +1,53 @@ +package ping + +import "log" + +type Logger interface { + Fatalf(format string, v ...interface{}) + Errorf(format string, v ...interface{}) + Warnf(format string, v ...interface{}) + Infof(format string, v ...interface{}) + Debugf(format string, v ...interface{}) +} + +type StdLogger struct { + Logger *log.Logger +} + +func (l StdLogger) Fatalf(format string, v ...interface{}) { + l.Logger.Printf("FATAL: "+format, v...) +} + +func (l StdLogger) Errorf(format string, v ...interface{}) { + l.Logger.Printf("ERROR: "+format, v...) +} + +func (l StdLogger) Warnf(format string, v ...interface{}) { + l.Logger.Printf("WARN: "+format, v...) +} + +func (l StdLogger) Infof(format string, v ...interface{}) { + l.Logger.Printf("INFO: "+format, v...) +} + +func (l StdLogger) Debugf(format string, v ...interface{}) { + l.Logger.Printf("DEBUG: "+format, v...) +} + +type NoopLogger struct { +} + +func (l NoopLogger) Fatalf(format string, v ...interface{}) { +} + +func (l NoopLogger) Errorf(format string, v ...interface{}) { +} + +func (l NoopLogger) Warnf(format string, v ...interface{}) { +} + +func (l NoopLogger) Infof(format string, v ...interface{}) { +} + +func (l NoopLogger) Debugf(format string, v ...interface{}) { +} diff --git a/vendor/github.com/go-ping/ping/packetconn.go b/vendor/github.com/go-ping/ping/packetconn.go new file mode 100644 index 0000000..38e17e3 --- /dev/null +++ b/vendor/github.com/go-ping/ping/packetconn.go @@ -0,0 +1,103 @@ +package ping + +import ( + "net" + "runtime" + "time" + + "golang.org/x/net/icmp" + "golang.org/x/net/ipv4" + "golang.org/x/net/ipv6" +) + +type packetConn interface { + Close() error + ICMPRequestType() icmp.Type + ReadFrom(b []byte) (n int, ttl int, src net.Addr, err error) + SetFlagTTL() error + SetReadDeadline(t time.Time) error + WriteTo(b []byte, dst net.Addr) (int, error) + SetTTL(ttl int) +} + +type icmpConn struct { + c *icmp.PacketConn + ttl int +} + +func (c *icmpConn) Close() error { + return c.c.Close() +} + +func (c *icmpConn) SetTTL(ttl int) { + c.ttl = ttl +} + +func (c *icmpConn) SetReadDeadline(t time.Time) error { + return c.c.SetReadDeadline(t) +} + +func (c *icmpConn) WriteTo(b []byte, dst net.Addr) (int, error) { + if c.c.IPv6PacketConn() != nil { + if err := c.c.IPv6PacketConn().SetHopLimit(c.ttl); err != nil { + return 0, err + } + } + if c.c.IPv4PacketConn() != nil { + if err := c.c.IPv4PacketConn().SetTTL(c.ttl); err != nil { + return 0, err + } + } + + return c.c.WriteTo(b, dst) +} + +type icmpv4Conn struct { + icmpConn +} + +func (c *icmpv4Conn) SetFlagTTL() error { + err := c.c.IPv4PacketConn().SetControlMessage(ipv4.FlagTTL, true) + if runtime.GOOS == "windows" { + return nil + } + return err +} + +func (c *icmpv4Conn) ReadFrom(b []byte) (int, int, net.Addr, error) { + var ttl int + n, cm, src, err := c.c.IPv4PacketConn().ReadFrom(b) + if cm != nil { + ttl = cm.TTL + } + return n, ttl, src, err +} + +func (c icmpv4Conn) ICMPRequestType() icmp.Type { + return ipv4.ICMPTypeEcho +} + +type icmpV6Conn struct { + icmpConn +} + +func (c *icmpV6Conn) SetFlagTTL() error { + err := c.c.IPv6PacketConn().SetControlMessage(ipv6.FlagHopLimit, true) + if runtime.GOOS == "windows" { + return nil + } + return err +} + +func (c *icmpV6Conn) ReadFrom(b []byte) (int, int, net.Addr, error) { + var ttl int + n, cm, src, err := c.c.IPv6PacketConn().ReadFrom(b) + if cm != nil { + ttl = cm.HopLimit + } + return n, ttl, src, err +} + +func (c icmpV6Conn) ICMPRequestType() icmp.Type { + return ipv6.ICMPTypeEchoRequest +} diff --git a/vendor/github.com/go-ping/ping/ping.go b/vendor/github.com/go-ping/ping/ping.go new file mode 100644 index 0000000..e1c09ee --- /dev/null +++ b/vendor/github.com/go-ping/ping/ping.go @@ -0,0 +1,821 @@ +// Package ping is a simple but powerful ICMP echo (ping) library. +// +// Here is a very simple example that sends and receives three packets: +// +// pinger, err := ping.NewPinger("www.google.com") +// if err != nil { +// panic(err) +// } +// pinger.Count = 3 +// err = pinger.Run() // blocks until finished +// if err != nil { +// panic(err) +// } +// stats := pinger.Statistics() // get send/receive/rtt stats +// +// Here is an example that emulates the traditional UNIX ping command: +// +// pinger, err := ping.NewPinger("www.google.com") +// if err != nil { +// panic(err) +// } +// // Listen for Ctrl-C. +// c := make(chan os.Signal, 1) +// signal.Notify(c, os.Interrupt) +// go func() { +// for _ = range c { +// pinger.Stop() +// } +// }() +// pinger.OnRecv = func(pkt *ping.Packet) { +// fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v\n", +// pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt) +// } +// pinger.OnFinish = func(stats *ping.Statistics) { +// fmt.Printf("\n--- %s ping statistics ---\n", stats.Addr) +// fmt.Printf("%d packets transmitted, %d packets received, %v%% packet loss\n", +// stats.PacketsSent, stats.PacketsRecv, stats.PacketLoss) +// fmt.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n", +// stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt) +// } +// fmt.Printf("PING %s (%s):\n", pinger.Addr(), pinger.IPAddr()) +// err = pinger.Run() +// if err != nil { +// panic(err) +// } +// +// It sends ICMP Echo Request packet(s) and waits for an Echo Reply in response. +// If it receives a response, it calls the OnRecv callback. When it's finished, +// it calls the OnFinish callback. +// +// For a full ping example, see "cmd/ping/ping.go". +// +package ping + +import ( + "bytes" + "errors" + "fmt" + "log" + "math" + "math/rand" + "net" + "sync" + "sync/atomic" + "syscall" + "time" + + "github.com/google/uuid" + "golang.org/x/net/icmp" + "golang.org/x/net/ipv4" + "golang.org/x/net/ipv6" + "golang.org/x/sync/errgroup" +) + +const ( + timeSliceLength = 8 + trackerLength = len(uuid.UUID{}) + protocolICMP = 1 + protocolIPv6ICMP = 58 +) + +var ( + ipv4Proto = map[string]string{"icmp": "ip4:icmp", "udp": "udp4"} + ipv6Proto = map[string]string{"icmp": "ip6:ipv6-icmp", "udp": "udp6"} +) + +// New returns a new Pinger struct pointer. +func New(addr string) *Pinger { + r := rand.New(rand.NewSource(getSeed())) + firstUUID := uuid.New() + var firstSequence = map[uuid.UUID]map[int]struct{}{} + firstSequence[firstUUID] = make(map[int]struct{}) + return &Pinger{ + Count: -1, + Interval: time.Second, + RecordRtts: true, + Size: timeSliceLength + trackerLength, + Timeout: time.Duration(math.MaxInt64), + + addr: addr, + done: make(chan interface{}), + id: r.Intn(math.MaxUint16), + trackerUUIDs: []uuid.UUID{firstUUID}, + ipaddr: nil, + ipv4: false, + network: "ip", + protocol: "udp", + awaitingSequences: firstSequence, + TTL: 64, + logger: StdLogger{Logger: log.New(log.Writer(), log.Prefix(), log.Flags())}, + } +} + +// NewPinger returns a new Pinger and resolves the address. +func NewPinger(addr string) (*Pinger, error) { + p := New(addr) + return p, p.Resolve() +} + +// Pinger represents a packet sender/receiver. +type Pinger struct { + // Interval is the wait time between each packet send. Default is 1s. + Interval time.Duration + + // Timeout specifies a timeout before ping exits, regardless of how many + // packets have been received. + Timeout time.Duration + + // Count tells pinger to stop after sending (and receiving) Count echo + // packets. If this option is not specified, pinger will operate until + // interrupted. + Count int + + // Debug runs in debug mode + Debug bool + + // Number of packets sent + PacketsSent int + + // Number of packets received + PacketsRecv int + + // Number of duplicate packets received + PacketsRecvDuplicates int + + // Round trip time statistics + minRtt time.Duration + maxRtt time.Duration + avgRtt time.Duration + stdDevRtt time.Duration + stddevm2 time.Duration + statsMu sync.RWMutex + + // If true, keep a record of rtts of all received packets. + // Set to false to avoid memory bloat for long running pings. + RecordRtts bool + + // rtts is all of the Rtts + rtts []time.Duration + + // OnSetup is called when Pinger has finished setting up the listening socket + OnSetup func() + + // OnSend is called when Pinger sends a packet + OnSend func(*Packet) + + // OnRecv is called when Pinger receives and processes a packet + OnRecv func(*Packet) + + // OnFinish is called when Pinger exits + OnFinish func(*Statistics) + + // OnDuplicateRecv is called when a packet is received that has already been received. + OnDuplicateRecv func(*Packet) + + // Size of packet being sent + Size int + + // Tracker: Used to uniquely identify packets - Deprecated + Tracker uint64 + + // Source is the source IP address + Source string + + // Channel and mutex used to communicate when the Pinger should stop between goroutines. + done chan interface{} + lock sync.Mutex + + ipaddr *net.IPAddr + addr string + + // trackerUUIDs is the list of UUIDs being used for sending packets. + trackerUUIDs []uuid.UUID + + ipv4 bool + id int + sequence int + // awaitingSequences are in-flight sequence numbers we keep track of to help remove duplicate receipts + awaitingSequences map[uuid.UUID]map[int]struct{} + // network is one of "ip", "ip4", or "ip6". + network string + // protocol is "icmp" or "udp". + protocol string + + logger Logger + + TTL int +} + +type packet struct { + bytes []byte + nbytes int + ttl int +} + +// Packet represents a received and processed ICMP echo packet. +type Packet struct { + // Rtt is the round-trip time it took to ping. + Rtt time.Duration + + // IPAddr is the address of the host being pinged. + IPAddr *net.IPAddr + + // Addr is the string address of the host being pinged. + Addr string + + // NBytes is the number of bytes in the message. + Nbytes int + + // Seq is the ICMP sequence number. + Seq int + + // TTL is the Time To Live on the packet. + Ttl int + + // ID is the ICMP identifier. + ID int +} + +// Statistics represent the stats of a currently running or finished +// pinger operation. +type Statistics struct { + // PacketsRecv is the number of packets received. + PacketsRecv int + + // PacketsSent is the number of packets sent. + PacketsSent int + + // PacketsRecvDuplicates is the number of duplicate responses there were to a sent packet. + PacketsRecvDuplicates int + + // PacketLoss is the percentage of packets lost. + PacketLoss float64 + + // IPAddr is the address of the host being pinged. + IPAddr *net.IPAddr + + // Addr is the string address of the host being pinged. + Addr string + + // Rtts is all of the round-trip times sent via this pinger. + Rtts []time.Duration + + // MinRtt is the minimum round-trip time sent via this pinger. + MinRtt time.Duration + + // MaxRtt is the maximum round-trip time sent via this pinger. + MaxRtt time.Duration + + // AvgRtt is the average round-trip time sent via this pinger. + AvgRtt time.Duration + + // StdDevRtt is the standard deviation of the round-trip times sent via + // this pinger. + StdDevRtt time.Duration +} + +func (p *Pinger) updateStatistics(pkt *Packet) { + p.statsMu.Lock() + defer p.statsMu.Unlock() + + p.PacketsRecv++ + if p.RecordRtts { + p.rtts = append(p.rtts, pkt.Rtt) + } + + if p.PacketsRecv == 1 || pkt.Rtt < p.minRtt { + p.minRtt = pkt.Rtt + } + + if pkt.Rtt > p.maxRtt { + p.maxRtt = pkt.Rtt + } + + pktCount := time.Duration(p.PacketsRecv) + // welford's online method for stddev + // https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Welford's_online_algorithm + delta := pkt.Rtt - p.avgRtt + p.avgRtt += delta / pktCount + delta2 := pkt.Rtt - p.avgRtt + p.stddevm2 += delta * delta2 + + p.stdDevRtt = time.Duration(math.Sqrt(float64(p.stddevm2 / pktCount))) +} + +// SetIPAddr sets the ip address of the target host. +func (p *Pinger) SetIPAddr(ipaddr *net.IPAddr) { + p.ipv4 = isIPv4(ipaddr.IP) + + p.ipaddr = ipaddr + p.addr = ipaddr.String() +} + +// IPAddr returns the ip address of the target host. +func (p *Pinger) IPAddr() *net.IPAddr { + return p.ipaddr +} + +// Resolve does the DNS lookup for the Pinger address and sets IP protocol. +func (p *Pinger) Resolve() error { + if len(p.addr) == 0 { + return errors.New("addr cannot be empty") + } + ipaddr, err := net.ResolveIPAddr(p.network, p.addr) + if err != nil { + return err + } + + p.ipv4 = isIPv4(ipaddr.IP) + + p.ipaddr = ipaddr + + return nil +} + +// SetAddr resolves and sets the ip address of the target host, addr can be a +// DNS name like "www.google.com" or IP like "127.0.0.1". +func (p *Pinger) SetAddr(addr string) error { + oldAddr := p.addr + p.addr = addr + err := p.Resolve() + if err != nil { + p.addr = oldAddr + return err + } + return nil +} + +// Addr returns the string ip address of the target host. +func (p *Pinger) Addr() string { + return p.addr +} + +// SetNetwork allows configuration of DNS resolution. +// * "ip" will automatically select IPv4 or IPv6. +// * "ip4" will select IPv4. +// * "ip6" will select IPv6. +func (p *Pinger) SetNetwork(n string) { + switch n { + case "ip4": + p.network = "ip4" + case "ip6": + p.network = "ip6" + default: + p.network = "ip" + } +} + +// SetPrivileged sets the type of ping pinger will send. +// false means pinger will send an "unprivileged" UDP ping. +// true means pinger will send a "privileged" raw ICMP ping. +// NOTE: setting to true requires that it be run with super-user privileges. +func (p *Pinger) SetPrivileged(privileged bool) { + if privileged { + p.protocol = "icmp" + } else { + p.protocol = "udp" + } +} + +// Privileged returns whether pinger is running in privileged mode. +func (p *Pinger) Privileged() bool { + return p.protocol == "icmp" +} + +// SetLogger sets the logger to be used to log events from the pinger. +func (p *Pinger) SetLogger(logger Logger) { + p.logger = logger +} + +// SetID sets the ICMP identifier. +func (p *Pinger) SetID(id int) { + p.id = id +} + +// ID returns the ICMP identifier. +func (p *Pinger) ID() int { + return p.id +} + +// Run runs the pinger. This is a blocking function that will exit when it's +// done. If Count or Interval are not specified, it will run continuously until +// it is interrupted. +func (p *Pinger) Run() error { + var conn packetConn + var err error + if p.Size < timeSliceLength+trackerLength { + return fmt.Errorf("size %d is less than minimum required size %d", p.Size, timeSliceLength+trackerLength) + } + if p.ipaddr == nil { + err = p.Resolve() + } + if err != nil { + return err + } + if conn, err = p.listen(); err != nil { + return err + } + defer conn.Close() + + conn.SetTTL(p.TTL) + return p.run(conn) +} + +func (p *Pinger) run(conn packetConn) error { + if err := conn.SetFlagTTL(); err != nil { + return err + } + defer p.finish() + + recv := make(chan *packet, 5) + defer close(recv) + + if handler := p.OnSetup; handler != nil { + handler() + } + + var g errgroup.Group + + g.Go(func() error { + defer p.Stop() + return p.recvICMP(conn, recv) + }) + + g.Go(func() error { + defer p.Stop() + return p.runLoop(conn, recv) + }) + + return g.Wait() +} + +func (p *Pinger) runLoop( + conn packetConn, + recvCh <-chan *packet, +) error { + logger := p.logger + if logger == nil { + logger = NoopLogger{} + } + + timeout := time.NewTicker(p.Timeout) + interval := time.NewTicker(p.Interval) + defer func() { + p.Stop() + interval.Stop() + timeout.Stop() + }() + + if err := p.sendICMP(conn); err != nil { + return err + } + + for { + select { + case <-p.done: + return nil + + case <-timeout.C: + return nil + + case r := <-recvCh: + err := p.processPacket(r) + if err != nil { + // FIXME: this logs as FATAL but continues + logger.Fatalf("processing received packet: %s", err) + } + + case <-interval.C: + if p.Count > 0 && p.PacketsSent >= p.Count { + interval.Stop() + continue + } + err := p.sendICMP(conn) + if err != nil { + // FIXME: this logs as FATAL but continues + logger.Fatalf("sending packet: %s", err) + } + } + if p.Count > 0 && p.PacketsRecv >= p.Count { + return nil + } + } +} + +func (p *Pinger) Stop() { + p.lock.Lock() + defer p.lock.Unlock() + + open := true + select { + case _, open = <-p.done: + default: + } + + if open { + close(p.done) + } +} + +func (p *Pinger) finish() { + handler := p.OnFinish + if handler != nil { + s := p.Statistics() + handler(s) + } +} + +// Statistics returns the statistics of the pinger. This can be run while the +// pinger is running or after it is finished. OnFinish calls this function to +// get it's finished statistics. +func (p *Pinger) Statistics() *Statistics { + p.statsMu.RLock() + defer p.statsMu.RUnlock() + sent := p.PacketsSent + loss := float64(sent-p.PacketsRecv) / float64(sent) * 100 + s := Statistics{ + PacketsSent: sent, + PacketsRecv: p.PacketsRecv, + PacketsRecvDuplicates: p.PacketsRecvDuplicates, + PacketLoss: loss, + Rtts: p.rtts, + Addr: p.addr, + IPAddr: p.ipaddr, + MaxRtt: p.maxRtt, + MinRtt: p.minRtt, + AvgRtt: p.avgRtt, + StdDevRtt: p.stdDevRtt, + } + return &s +} + +type expBackoff struct { + baseDelay time.Duration + maxExp int64 + c int64 +} + +func (b *expBackoff) Get() time.Duration { + if b.c < b.maxExp { + b.c++ + } + + return b.baseDelay * time.Duration(rand.Int63n(1< 0 { + t = append(t, bytes.Repeat([]byte{1}, remainSize)...) + } + + body := &icmp.Echo{ + ID: p.id, + Seq: p.sequence, + Data: t, + } + + msg := &icmp.Message{ + Type: conn.ICMPRequestType(), + Code: 0, + Body: body, + } + + msgBytes, err := msg.Marshal(nil) + if err != nil { + return err + } + + for { + if _, err := conn.WriteTo(msgBytes, dst); err != nil { + if neterr, ok := err.(*net.OpError); ok { + if neterr.Err == syscall.ENOBUFS { + continue + } + } + return err + } + handler := p.OnSend + if handler != nil { + outPkt := &Packet{ + Nbytes: len(msgBytes), + IPAddr: p.ipaddr, + Addr: p.addr, + Seq: p.sequence, + ID: p.id, + } + handler(outPkt) + } + // mark this sequence as in-flight + p.awaitingSequences[currentUUID][p.sequence] = struct{}{} + p.PacketsSent++ + p.sequence++ + if p.sequence > 65535 { + newUUID := uuid.New() + p.trackerUUIDs = append(p.trackerUUIDs, newUUID) + p.awaitingSequences[newUUID] = make(map[int]struct{}) + p.sequence = 0 + } + break + } + + return nil +} + +func (p *Pinger) listen() (packetConn, error) { + var ( + conn packetConn + err error + ) + + if p.ipv4 { + var c icmpv4Conn + c.c, err = icmp.ListenPacket(ipv4Proto[p.protocol], p.Source) + conn = &c + } else { + var c icmpV6Conn + c.c, err = icmp.ListenPacket(ipv6Proto[p.protocol], p.Source) + conn = &c + } + + if err != nil { + p.Stop() + return nil, err + } + return conn, nil +} + +func bytesToTime(b []byte) time.Time { + var nsec int64 + for i := uint8(0); i < 8; i++ { + nsec += int64(b[i]) << ((7 - i) * 8) + } + return time.Unix(nsec/1000000000, nsec%1000000000) +} + +func isIPv4(ip net.IP) bool { + return len(ip.To4()) == net.IPv4len +} + +func timeToBytes(t time.Time) []byte { + nsec := t.UnixNano() + b := make([]byte, 8) + for i := uint8(0); i < 8; i++ { + b[i] = byte((nsec >> ((7 - i) * 8)) & 0xff) + } + return b +} + +var seed int64 = time.Now().UnixNano() + +// getSeed returns a goroutine-safe unique seed +func getSeed() int64 { + return atomic.AddInt64(&seed, 1) +} diff --git a/vendor/github.com/go-ping/ping/utils_linux.go b/vendor/github.com/go-ping/ping/utils_linux.go new file mode 100644 index 0000000..ba785d2 --- /dev/null +++ b/vendor/github.com/go-ping/ping/utils_linux.go @@ -0,0 +1,19 @@ +// +build linux + +package ping + +// Returns the length of an ICMP message. +func (p *Pinger) getMessageLength() int { + return p.Size + 8 +} + +// Attempts to match the ID of an ICMP packet. +func (p *Pinger) matchID(ID int) bool { + // On Linux we can only match ID if we are privileged. + if p.protocol == "icmp" { + if ID != p.id { + return false + } + } + return true +} diff --git a/vendor/github.com/go-ping/ping/utils_other.go b/vendor/github.com/go-ping/ping/utils_other.go new file mode 100644 index 0000000..6ccbe78 --- /dev/null +++ b/vendor/github.com/go-ping/ping/utils_other.go @@ -0,0 +1,16 @@ +// +build !linux,!windows + +package ping + +// Returns the length of an ICMP message. +func (p *Pinger) getMessageLength() int { + return p.Size + 8 +} + +// Attempts to match the ID of an ICMP packet. +func (p *Pinger) matchID(ID int) bool { + if ID != p.id { + return false + } + return true +} diff --git a/vendor/github.com/go-ping/ping/utils_windows.go b/vendor/github.com/go-ping/ping/utils_windows.go new file mode 100644 index 0000000..ba642bc --- /dev/null +++ b/vendor/github.com/go-ping/ping/utils_windows.go @@ -0,0 +1,24 @@ +// +build windows + +package ping + +import ( + "golang.org/x/net/ipv4" + "golang.org/x/net/ipv6" +) + +// Returns the length of an ICMP message, plus the IP packet header. +func (p *Pinger) getMessageLength() int { + if p.ipv4 { + return p.Size + 8 + ipv4.HeaderLen + } + return p.Size + 8 + ipv6.HeaderLen +} + +// Attempts to match the ID of an ICMP packet. +func (p *Pinger) matchID(ID int) bool { + if ID != p.id { + return false + } + return true +} diff --git a/vendor/github.com/google/uuid/.travis.yml b/vendor/github.com/google/uuid/.travis.yml new file mode 100644 index 0000000..d8156a6 --- /dev/null +++ b/vendor/github.com/google/uuid/.travis.yml @@ -0,0 +1,9 @@ +language: go + +go: + - 1.4.3 + - 1.5.3 + - tip + +script: + - go test -v ./... diff --git a/vendor/github.com/google/uuid/CONTRIBUTING.md b/vendor/github.com/google/uuid/CONTRIBUTING.md new file mode 100644 index 0000000..04fdf09 --- /dev/null +++ b/vendor/github.com/google/uuid/CONTRIBUTING.md @@ -0,0 +1,10 @@ +# How to contribute + +We definitely welcome patches and contribution to this project! + +### Legal requirements + +In order to protect both you and ourselves, you will need to sign the +[Contributor License Agreement](https://cla.developers.google.com/clas). + +You may have already signed it for other Google projects. diff --git a/vendor/github.com/google/uuid/CONTRIBUTORS b/vendor/github.com/google/uuid/CONTRIBUTORS new file mode 100644 index 0000000..b4bb97f --- /dev/null +++ b/vendor/github.com/google/uuid/CONTRIBUTORS @@ -0,0 +1,9 @@ +Paul Borman +bmatsuo +shawnps +theory +jboverfelt +dsymonds +cd1 +wallclockbuilder +dansouza diff --git a/vendor/github.com/google/uuid/LICENSE b/vendor/github.com/google/uuid/LICENSE new file mode 100644 index 0000000..5dc6826 --- /dev/null +++ b/vendor/github.com/google/uuid/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009,2014 Google Inc. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/google/uuid/README.md b/vendor/github.com/google/uuid/README.md new file mode 100644 index 0000000..f765a46 --- /dev/null +++ b/vendor/github.com/google/uuid/README.md @@ -0,0 +1,19 @@ +# uuid ![build status](https://travis-ci.org/google/uuid.svg?branch=master) +The uuid package generates and inspects UUIDs based on +[RFC 4122](http://tools.ietf.org/html/rfc4122) +and DCE 1.1: Authentication and Security Services. + +This package is based on the github.com/pborman/uuid package (previously named +code.google.com/p/go-uuid). It differs from these earlier packages in that +a UUID is a 16 byte array rather than a byte slice. One loss due to this +change is the ability to represent an invalid UUID (vs a NIL UUID). + +###### Install +`go get github.com/google/uuid` + +###### Documentation +[![GoDoc](https://godoc.org/github.com/google/uuid?status.svg)](http://godoc.org/github.com/google/uuid) + +Full `go doc` style documentation for the package can be viewed online without +installing this package by using the GoDoc site here: +http://pkg.go.dev/github.com/google/uuid diff --git a/vendor/github.com/google/uuid/dce.go b/vendor/github.com/google/uuid/dce.go new file mode 100644 index 0000000..fa820b9 --- /dev/null +++ b/vendor/github.com/google/uuid/dce.go @@ -0,0 +1,80 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "encoding/binary" + "fmt" + "os" +) + +// A Domain represents a Version 2 domain +type Domain byte + +// Domain constants for DCE Security (Version 2) UUIDs. +const ( + Person = Domain(0) + Group = Domain(1) + Org = Domain(2) +) + +// NewDCESecurity returns a DCE Security (Version 2) UUID. +// +// The domain should be one of Person, Group or Org. +// On a POSIX system the id should be the users UID for the Person +// domain and the users GID for the Group. The meaning of id for +// the domain Org or on non-POSIX systems is site defined. +// +// For a given domain/id pair the same token may be returned for up to +// 7 minutes and 10 seconds. +func NewDCESecurity(domain Domain, id uint32) (UUID, error) { + uuid, err := NewUUID() + if err == nil { + uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2 + uuid[9] = byte(domain) + binary.BigEndian.PutUint32(uuid[0:], id) + } + return uuid, err +} + +// NewDCEPerson returns a DCE Security (Version 2) UUID in the person +// domain with the id returned by os.Getuid. +// +// NewDCESecurity(Person, uint32(os.Getuid())) +func NewDCEPerson() (UUID, error) { + return NewDCESecurity(Person, uint32(os.Getuid())) +} + +// NewDCEGroup returns a DCE Security (Version 2) UUID in the group +// domain with the id returned by os.Getgid. +// +// NewDCESecurity(Group, uint32(os.Getgid())) +func NewDCEGroup() (UUID, error) { + return NewDCESecurity(Group, uint32(os.Getgid())) +} + +// Domain returns the domain for a Version 2 UUID. Domains are only defined +// for Version 2 UUIDs. +func (uuid UUID) Domain() Domain { + return Domain(uuid[9]) +} + +// ID returns the id for a Version 2 UUID. IDs are only defined for Version 2 +// UUIDs. +func (uuid UUID) ID() uint32 { + return binary.BigEndian.Uint32(uuid[0:4]) +} + +func (d Domain) String() string { + switch d { + case Person: + return "Person" + case Group: + return "Group" + case Org: + return "Org" + } + return fmt.Sprintf("Domain%d", int(d)) +} diff --git a/vendor/github.com/google/uuid/doc.go b/vendor/github.com/google/uuid/doc.go new file mode 100644 index 0000000..5b8a4b9 --- /dev/null +++ b/vendor/github.com/google/uuid/doc.go @@ -0,0 +1,12 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package uuid generates and inspects UUIDs. +// +// UUIDs are based on RFC 4122 and DCE 1.1: Authentication and Security +// Services. +// +// A UUID is a 16 byte (128 bit) array. UUIDs may be used as keys to +// maps or compared directly. +package uuid diff --git a/vendor/github.com/google/uuid/hash.go b/vendor/github.com/google/uuid/hash.go new file mode 100644 index 0000000..b404f4b --- /dev/null +++ b/vendor/github.com/google/uuid/hash.go @@ -0,0 +1,53 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "crypto/md5" + "crypto/sha1" + "hash" +) + +// Well known namespace IDs and UUIDs +var ( + NameSpaceDNS = Must(Parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8")) + NameSpaceURL = Must(Parse("6ba7b811-9dad-11d1-80b4-00c04fd430c8")) + NameSpaceOID = Must(Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8")) + NameSpaceX500 = Must(Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8")) + Nil UUID // empty UUID, all zeros +) + +// NewHash returns a new UUID derived from the hash of space concatenated with +// data generated by h. The hash should be at least 16 byte in length. The +// first 16 bytes of the hash are used to form the UUID. The version of the +// UUID will be the lower 4 bits of version. NewHash is used to implement +// NewMD5 and NewSHA1. +func NewHash(h hash.Hash, space UUID, data []byte, version int) UUID { + h.Reset() + h.Write(space[:]) //nolint:errcheck + h.Write(data) //nolint:errcheck + s := h.Sum(nil) + var uuid UUID + copy(uuid[:], s) + uuid[6] = (uuid[6] & 0x0f) | uint8((version&0xf)<<4) + uuid[8] = (uuid[8] & 0x3f) | 0x80 // RFC 4122 variant + return uuid +} + +// NewMD5 returns a new MD5 (Version 3) UUID based on the +// supplied name space and data. It is the same as calling: +// +// NewHash(md5.New(), space, data, 3) +func NewMD5(space UUID, data []byte) UUID { + return NewHash(md5.New(), space, data, 3) +} + +// NewSHA1 returns a new SHA1 (Version 5) UUID based on the +// supplied name space and data. It is the same as calling: +// +// NewHash(sha1.New(), space, data, 5) +func NewSHA1(space UUID, data []byte) UUID { + return NewHash(sha1.New(), space, data, 5) +} diff --git a/vendor/github.com/google/uuid/marshal.go b/vendor/github.com/google/uuid/marshal.go new file mode 100644 index 0000000..14bd340 --- /dev/null +++ b/vendor/github.com/google/uuid/marshal.go @@ -0,0 +1,38 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import "fmt" + +// MarshalText implements encoding.TextMarshaler. +func (uuid UUID) MarshalText() ([]byte, error) { + var js [36]byte + encodeHex(js[:], uuid) + return js[:], nil +} + +// UnmarshalText implements encoding.TextUnmarshaler. +func (uuid *UUID) UnmarshalText(data []byte) error { + id, err := ParseBytes(data) + if err != nil { + return err + } + *uuid = id + return nil +} + +// MarshalBinary implements encoding.BinaryMarshaler. +func (uuid UUID) MarshalBinary() ([]byte, error) { + return uuid[:], nil +} + +// UnmarshalBinary implements encoding.BinaryUnmarshaler. +func (uuid *UUID) UnmarshalBinary(data []byte) error { + if len(data) != 16 { + return fmt.Errorf("invalid UUID (got %d bytes)", len(data)) + } + copy(uuid[:], data) + return nil +} diff --git a/vendor/github.com/google/uuid/node.go b/vendor/github.com/google/uuid/node.go new file mode 100644 index 0000000..d651a2b --- /dev/null +++ b/vendor/github.com/google/uuid/node.go @@ -0,0 +1,90 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "sync" +) + +var ( + nodeMu sync.Mutex + ifname string // name of interface being used + nodeID [6]byte // hardware for version 1 UUIDs + zeroID [6]byte // nodeID with only 0's +) + +// NodeInterface returns the name of the interface from which the NodeID was +// derived. The interface "user" is returned if the NodeID was set by +// SetNodeID. +func NodeInterface() string { + defer nodeMu.Unlock() + nodeMu.Lock() + return ifname +} + +// SetNodeInterface selects the hardware address to be used for Version 1 UUIDs. +// If name is "" then the first usable interface found will be used or a random +// Node ID will be generated. If a named interface cannot be found then false +// is returned. +// +// SetNodeInterface never fails when name is "". +func SetNodeInterface(name string) bool { + defer nodeMu.Unlock() + nodeMu.Lock() + return setNodeInterface(name) +} + +func setNodeInterface(name string) bool { + iname, addr := getHardwareInterface(name) // null implementation for js + if iname != "" && addr != nil { + ifname = iname + copy(nodeID[:], addr) + return true + } + + // We found no interfaces with a valid hardware address. If name + // does not specify a specific interface generate a random Node ID + // (section 4.1.6) + if name == "" { + ifname = "random" + randomBits(nodeID[:]) + return true + } + return false +} + +// NodeID returns a slice of a copy of the current Node ID, setting the Node ID +// if not already set. +func NodeID() []byte { + defer nodeMu.Unlock() + nodeMu.Lock() + if nodeID == zeroID { + setNodeInterface("") + } + nid := nodeID + return nid[:] +} + +// SetNodeID sets the Node ID to be used for Version 1 UUIDs. The first 6 bytes +// of id are used. If id is less than 6 bytes then false is returned and the +// Node ID is not set. +func SetNodeID(id []byte) bool { + if len(id) < 6 { + return false + } + defer nodeMu.Unlock() + nodeMu.Lock() + copy(nodeID[:], id) + ifname = "user" + return true +} + +// NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is +// not valid. The NodeID is only well defined for version 1 and 2 UUIDs. +func (uuid UUID) NodeID() []byte { + var node [6]byte + copy(node[:], uuid[10:]) + return node[:] +} diff --git a/vendor/github.com/google/uuid/node_js.go b/vendor/github.com/google/uuid/node_js.go new file mode 100644 index 0000000..24b78ed --- /dev/null +++ b/vendor/github.com/google/uuid/node_js.go @@ -0,0 +1,12 @@ +// Copyright 2017 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build js + +package uuid + +// getHardwareInterface returns nil values for the JS version of the code. +// This remvoves the "net" dependency, because it is not used in the browser. +// Using the "net" library inflates the size of the transpiled JS code by 673k bytes. +func getHardwareInterface(name string) (string, []byte) { return "", nil } diff --git a/vendor/github.com/google/uuid/node_net.go b/vendor/github.com/google/uuid/node_net.go new file mode 100644 index 0000000..0cbbcdd --- /dev/null +++ b/vendor/github.com/google/uuid/node_net.go @@ -0,0 +1,33 @@ +// Copyright 2017 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !js + +package uuid + +import "net" + +var interfaces []net.Interface // cached list of interfaces + +// getHardwareInterface returns the name and hardware address of interface name. +// If name is "" then the name and hardware address of one of the system's +// interfaces is returned. If no interfaces are found (name does not exist or +// there are no interfaces) then "", nil is returned. +// +// Only addresses of at least 6 bytes are returned. +func getHardwareInterface(name string) (string, []byte) { + if interfaces == nil { + var err error + interfaces, err = net.Interfaces() + if err != nil { + return "", nil + } + } + for _, ifs := range interfaces { + if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) { + return ifs.Name, ifs.HardwareAddr + } + } + return "", nil +} diff --git a/vendor/github.com/google/uuid/sql.go b/vendor/github.com/google/uuid/sql.go new file mode 100644 index 0000000..2e02ec0 --- /dev/null +++ b/vendor/github.com/google/uuid/sql.go @@ -0,0 +1,59 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "database/sql/driver" + "fmt" +) + +// Scan implements sql.Scanner so UUIDs can be read from databases transparently. +// Currently, database types that map to string and []byte are supported. Please +// consult database-specific driver documentation for matching types. +func (uuid *UUID) Scan(src interface{}) error { + switch src := src.(type) { + case nil: + return nil + + case string: + // if an empty UUID comes from a table, we return a null UUID + if src == "" { + return nil + } + + // see Parse for required string format + u, err := Parse(src) + if err != nil { + return fmt.Errorf("Scan: %v", err) + } + + *uuid = u + + case []byte: + // if an empty UUID comes from a table, we return a null UUID + if len(src) == 0 { + return nil + } + + // assumes a simple slice of bytes if 16 bytes + // otherwise attempts to parse + if len(src) != 16 { + return uuid.Scan(string(src)) + } + copy((*uuid)[:], src) + + default: + return fmt.Errorf("Scan: unable to scan type %T into UUID", src) + } + + return nil +} + +// Value implements sql.Valuer so that UUIDs can be written to databases +// transparently. Currently, UUIDs map to strings. Please consult +// database-specific driver documentation for matching types. +func (uuid UUID) Value() (driver.Value, error) { + return uuid.String(), nil +} diff --git a/vendor/github.com/google/uuid/time.go b/vendor/github.com/google/uuid/time.go new file mode 100644 index 0000000..e6ef06c --- /dev/null +++ b/vendor/github.com/google/uuid/time.go @@ -0,0 +1,123 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "encoding/binary" + "sync" + "time" +) + +// A Time represents a time as the number of 100's of nanoseconds since 15 Oct +// 1582. +type Time int64 + +const ( + lillian = 2299160 // Julian day of 15 Oct 1582 + unix = 2440587 // Julian day of 1 Jan 1970 + epoch = unix - lillian // Days between epochs + g1582 = epoch * 86400 // seconds between epochs + g1582ns100 = g1582 * 10000000 // 100s of a nanoseconds between epochs +) + +var ( + timeMu sync.Mutex + lasttime uint64 // last time we returned + clockSeq uint16 // clock sequence for this run + + timeNow = time.Now // for testing +) + +// UnixTime converts t the number of seconds and nanoseconds using the Unix +// epoch of 1 Jan 1970. +func (t Time) UnixTime() (sec, nsec int64) { + sec = int64(t - g1582ns100) + nsec = (sec % 10000000) * 100 + sec /= 10000000 + return sec, nsec +} + +// GetTime returns the current Time (100s of nanoseconds since 15 Oct 1582) and +// clock sequence as well as adjusting the clock sequence as needed. An error +// is returned if the current time cannot be determined. +func GetTime() (Time, uint16, error) { + defer timeMu.Unlock() + timeMu.Lock() + return getTime() +} + +func getTime() (Time, uint16, error) { + t := timeNow() + + // If we don't have a clock sequence already, set one. + if clockSeq == 0 { + setClockSequence(-1) + } + now := uint64(t.UnixNano()/100) + g1582ns100 + + // If time has gone backwards with this clock sequence then we + // increment the clock sequence + if now <= lasttime { + clockSeq = ((clockSeq + 1) & 0x3fff) | 0x8000 + } + lasttime = now + return Time(now), clockSeq, nil +} + +// ClockSequence returns the current clock sequence, generating one if not +// already set. The clock sequence is only used for Version 1 UUIDs. +// +// The uuid package does not use global static storage for the clock sequence or +// the last time a UUID was generated. Unless SetClockSequence is used, a new +// random clock sequence is generated the first time a clock sequence is +// requested by ClockSequence, GetTime, or NewUUID. (section 4.2.1.1) +func ClockSequence() int { + defer timeMu.Unlock() + timeMu.Lock() + return clockSequence() +} + +func clockSequence() int { + if clockSeq == 0 { + setClockSequence(-1) + } + return int(clockSeq & 0x3fff) +} + +// SetClockSequence sets the clock sequence to the lower 14 bits of seq. Setting to +// -1 causes a new sequence to be generated. +func SetClockSequence(seq int) { + defer timeMu.Unlock() + timeMu.Lock() + setClockSequence(seq) +} + +func setClockSequence(seq int) { + if seq == -1 { + var b [2]byte + randomBits(b[:]) // clock sequence + seq = int(b[0])<<8 | int(b[1]) + } + oldSeq := clockSeq + clockSeq = uint16(seq&0x3fff) | 0x8000 // Set our variant + if oldSeq != clockSeq { + lasttime = 0 + } +} + +// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in +// uuid. The time is only defined for version 1 and 2 UUIDs. +func (uuid UUID) Time() Time { + time := int64(binary.BigEndian.Uint32(uuid[0:4])) + time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32 + time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48 + return Time(time) +} + +// ClockSequence returns the clock sequence encoded in uuid. +// The clock sequence is only well defined for version 1 and 2 UUIDs. +func (uuid UUID) ClockSequence() int { + return int(binary.BigEndian.Uint16(uuid[8:10])) & 0x3fff +} diff --git a/vendor/github.com/google/uuid/util.go b/vendor/github.com/google/uuid/util.go new file mode 100644 index 0000000..5ea6c73 --- /dev/null +++ b/vendor/github.com/google/uuid/util.go @@ -0,0 +1,43 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "io" +) + +// randomBits completely fills slice b with random data. +func randomBits(b []byte) { + if _, err := io.ReadFull(rander, b); err != nil { + panic(err.Error()) // rand should never fail + } +} + +// xvalues returns the value of a byte as a hexadecimal digit or 255. +var xvalues = [256]byte{ + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, + 255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, +} + +// xtob converts hex characters x1 and x2 into a byte. +func xtob(x1, x2 byte) (byte, bool) { + b1 := xvalues[x1] + b2 := xvalues[x2] + return (b1 << 4) | b2, b1 != 255 && b2 != 255 +} diff --git a/vendor/github.com/google/uuid/uuid.go b/vendor/github.com/google/uuid/uuid.go new file mode 100644 index 0000000..60d26bb --- /dev/null +++ b/vendor/github.com/google/uuid/uuid.go @@ -0,0 +1,251 @@ +// Copyright 2018 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "bytes" + "crypto/rand" + "encoding/hex" + "errors" + "fmt" + "io" + "strings" +) + +// A UUID is a 128 bit (16 byte) Universal Unique IDentifier as defined in RFC +// 4122. +type UUID [16]byte + +// A Version represents a UUID's version. +type Version byte + +// A Variant represents a UUID's variant. +type Variant byte + +// Constants returned by Variant. +const ( + Invalid = Variant(iota) // Invalid UUID + RFC4122 // The variant specified in RFC4122 + Reserved // Reserved, NCS backward compatibility. + Microsoft // Reserved, Microsoft Corporation backward compatibility. + Future // Reserved for future definition. +) + +var rander = rand.Reader // random function + +type invalidLengthError struct{ len int } + +func (err invalidLengthError) Error() string { + return fmt.Sprintf("invalid UUID length: %d", err.len) +} + +// Parse decodes s into a UUID or returns an error. Both the standard UUID +// forms of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and +// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx are decoded as well as the +// Microsoft encoding {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} and the raw hex +// encoding: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. +func Parse(s string) (UUID, error) { + var uuid UUID + switch len(s) { + // xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + case 36: + + // urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + case 36 + 9: + if strings.ToLower(s[:9]) != "urn:uuid:" { + return uuid, fmt.Errorf("invalid urn prefix: %q", s[:9]) + } + s = s[9:] + + // {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} + case 36 + 2: + s = s[1:] + + // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + case 32: + var ok bool + for i := range uuid { + uuid[i], ok = xtob(s[i*2], s[i*2+1]) + if !ok { + return uuid, errors.New("invalid UUID format") + } + } + return uuid, nil + default: + return uuid, invalidLengthError{len(s)} + } + // s is now at least 36 bytes long + // it must be of the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' { + return uuid, errors.New("invalid UUID format") + } + for i, x := range [16]int{ + 0, 2, 4, 6, + 9, 11, + 14, 16, + 19, 21, + 24, 26, 28, 30, 32, 34} { + v, ok := xtob(s[x], s[x+1]) + if !ok { + return uuid, errors.New("invalid UUID format") + } + uuid[i] = v + } + return uuid, nil +} + +// ParseBytes is like Parse, except it parses a byte slice instead of a string. +func ParseBytes(b []byte) (UUID, error) { + var uuid UUID + switch len(b) { + case 36: // xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + case 36 + 9: // urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + if !bytes.Equal(bytes.ToLower(b[:9]), []byte("urn:uuid:")) { + return uuid, fmt.Errorf("invalid urn prefix: %q", b[:9]) + } + b = b[9:] + case 36 + 2: // {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} + b = b[1:] + case 32: // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + var ok bool + for i := 0; i < 32; i += 2 { + uuid[i/2], ok = xtob(b[i], b[i+1]) + if !ok { + return uuid, errors.New("invalid UUID format") + } + } + return uuid, nil + default: + return uuid, invalidLengthError{len(b)} + } + // s is now at least 36 bytes long + // it must be of the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx + if b[8] != '-' || b[13] != '-' || b[18] != '-' || b[23] != '-' { + return uuid, errors.New("invalid UUID format") + } + for i, x := range [16]int{ + 0, 2, 4, 6, + 9, 11, + 14, 16, + 19, 21, + 24, 26, 28, 30, 32, 34} { + v, ok := xtob(b[x], b[x+1]) + if !ok { + return uuid, errors.New("invalid UUID format") + } + uuid[i] = v + } + return uuid, nil +} + +// MustParse is like Parse but panics if the string cannot be parsed. +// It simplifies safe initialization of global variables holding compiled UUIDs. +func MustParse(s string) UUID { + uuid, err := Parse(s) + if err != nil { + panic(`uuid: Parse(` + s + `): ` + err.Error()) + } + return uuid +} + +// FromBytes creates a new UUID from a byte slice. Returns an error if the slice +// does not have a length of 16. The bytes are copied from the slice. +func FromBytes(b []byte) (uuid UUID, err error) { + err = uuid.UnmarshalBinary(b) + return uuid, err +} + +// Must returns uuid if err is nil and panics otherwise. +func Must(uuid UUID, err error) UUID { + if err != nil { + panic(err) + } + return uuid +} + +// String returns the string form of uuid, xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +// , or "" if uuid is invalid. +func (uuid UUID) String() string { + var buf [36]byte + encodeHex(buf[:], uuid) + return string(buf[:]) +} + +// URN returns the RFC 2141 URN form of uuid, +// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx, or "" if uuid is invalid. +func (uuid UUID) URN() string { + var buf [36 + 9]byte + copy(buf[:], "urn:uuid:") + encodeHex(buf[9:], uuid) + return string(buf[:]) +} + +func encodeHex(dst []byte, uuid UUID) { + hex.Encode(dst, uuid[:4]) + dst[8] = '-' + hex.Encode(dst[9:13], uuid[4:6]) + dst[13] = '-' + hex.Encode(dst[14:18], uuid[6:8]) + dst[18] = '-' + hex.Encode(dst[19:23], uuid[8:10]) + dst[23] = '-' + hex.Encode(dst[24:], uuid[10:]) +} + +// Variant returns the variant encoded in uuid. +func (uuid UUID) Variant() Variant { + switch { + case (uuid[8] & 0xc0) == 0x80: + return RFC4122 + case (uuid[8] & 0xe0) == 0xc0: + return Microsoft + case (uuid[8] & 0xe0) == 0xe0: + return Future + default: + return Reserved + } +} + +// Version returns the version of uuid. +func (uuid UUID) Version() Version { + return Version(uuid[6] >> 4) +} + +func (v Version) String() string { + if v > 15 { + return fmt.Sprintf("BAD_VERSION_%d", v) + } + return fmt.Sprintf("VERSION_%d", v) +} + +func (v Variant) String() string { + switch v { + case RFC4122: + return "RFC4122" + case Reserved: + return "Reserved" + case Microsoft: + return "Microsoft" + case Future: + return "Future" + case Invalid: + return "Invalid" + } + return fmt.Sprintf("BadVariant%d", int(v)) +} + +// SetRand sets the random number generator to r, which implements io.Reader. +// If r.Read returns an error when the package requests random data then +// a panic will be issued. +// +// Calling SetRand with nil sets the random number generator to the default +// generator. +func SetRand(r io.Reader) { + if r == nil { + rander = rand.Reader + return + } + rander = r +} diff --git a/vendor/github.com/google/uuid/version1.go b/vendor/github.com/google/uuid/version1.go new file mode 100644 index 0000000..4631096 --- /dev/null +++ b/vendor/github.com/google/uuid/version1.go @@ -0,0 +1,44 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "encoding/binary" +) + +// NewUUID returns a Version 1 UUID based on the current NodeID and clock +// sequence, and the current time. If the NodeID has not been set by SetNodeID +// or SetNodeInterface then it will be set automatically. If the NodeID cannot +// be set NewUUID returns nil. If clock sequence has not been set by +// SetClockSequence then it will be set automatically. If GetTime fails to +// return the current NewUUID returns nil and an error. +// +// In most cases, New should be used. +func NewUUID() (UUID, error) { + var uuid UUID + now, seq, err := GetTime() + if err != nil { + return uuid, err + } + + timeLow := uint32(now & 0xffffffff) + timeMid := uint16((now >> 32) & 0xffff) + timeHi := uint16((now >> 48) & 0x0fff) + timeHi |= 0x1000 // Version 1 + + binary.BigEndian.PutUint32(uuid[0:], timeLow) + binary.BigEndian.PutUint16(uuid[4:], timeMid) + binary.BigEndian.PutUint16(uuid[6:], timeHi) + binary.BigEndian.PutUint16(uuid[8:], seq) + + nodeMu.Lock() + if nodeID == zeroID { + setNodeInterface("") + } + copy(uuid[10:], nodeID[:]) + nodeMu.Unlock() + + return uuid, nil +} diff --git a/vendor/github.com/google/uuid/version4.go b/vendor/github.com/google/uuid/version4.go new file mode 100644 index 0000000..86160fb --- /dev/null +++ b/vendor/github.com/google/uuid/version4.go @@ -0,0 +1,51 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import "io" + +// New creates a new random UUID or panics. New is equivalent to +// the expression +// +// uuid.Must(uuid.NewRandom()) +func New() UUID { + return Must(NewRandom()) +} + +// NewString creates a new random UUID and returns it as a string or panics. +// NewString is equivalent to the expression +// +// uuid.New().String() +func NewString() string { + return Must(NewRandom()).String() +} + +// NewRandom returns a Random (Version 4) UUID. +// +// The strength of the UUIDs is based on the strength of the crypto/rand +// package. +// +// A note about uniqueness derived from the UUID Wikipedia entry: +// +// Randomly generated UUIDs have 122 random bits. One's annual risk of being +// hit by a meteorite is estimated to be one chance in 17 billion, that +// means the probability is about 0.00000000006 (6 × 10−11), +// equivalent to the odds of creating a few tens of trillions of UUIDs in a +// year and having one duplicate. +func NewRandom() (UUID, error) { + return NewRandomFromReader(rander) +} + +// NewRandomFromReader returns a UUID based on bytes read from a given io.Reader. +func NewRandomFromReader(r io.Reader) (UUID, error) { + var uuid UUID + _, err := io.ReadFull(r, uuid[:]) + if err != nil { + return Nil, err + } + uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4 + uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10 + return uuid, nil +} diff --git a/vendor/github.com/milosgajdos/tenus/.gitignore b/vendor/github.com/milosgajdos/tenus/.gitignore new file mode 100644 index 0000000..8000dd9 --- /dev/null +++ b/vendor/github.com/milosgajdos/tenus/.gitignore @@ -0,0 +1 @@ +.vagrant diff --git a/vendor/github.com/milosgajdos/tenus/LICENSE b/vendor/github.com/milosgajdos/tenus/LICENSE new file mode 100644 index 0000000..0fb2679 --- /dev/null +++ b/vendor/github.com/milosgajdos/tenus/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Milos Gajdos + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/github.com/milosgajdos/tenus/Makefile b/vendor/github.com/milosgajdos/tenus/Makefile new file mode 100644 index 0000000..298d9fb --- /dev/null +++ b/vendor/github.com/milosgajdos/tenus/Makefile @@ -0,0 +1,6 @@ +test: + docker-compose run --rm test make _test + +_test: + go test + diff --git a/vendor/github.com/milosgajdos/tenus/README.md b/vendor/github.com/milosgajdos/tenus/README.md new file mode 100644 index 0000000..b13f460 --- /dev/null +++ b/vendor/github.com/milosgajdos/tenus/README.md @@ -0,0 +1,247 @@ +# Linux networking in Golang + +[![GoDoc](https://godoc.org/github.com/milosgajdos/tenus?status.svg)](https://godoc.org/github.com/milosgajdos/tenus) +[![License](https://img.shields.io/:license-apache-blue.svg)](https://opensource.org/licenses/Apache-2.0) + +**tenus** is a [Golang](http://golang.org/) package which allows you to configure and manage Linux network devices programmatically. It communicates with Linux Kernel via [netlink](http://man7.org/linux/man-pages/man7/netlink.7.html) to facilitate creation and configuration of network devices on the Linux host. The package also allows for more advanced network setups with Linux containers including [Docker](https://github.com/dotcloud/docker/). + +**tenus** uses [runc](https://github.com/opencontainers/runc)'s implementation of **netlink** protocol. The package only works with newer Linux Kernels (3.10+) which are shipping reasonably new `netlink` protocol implementation, so **if you are running older kernel this package won't be of much use to you** I'm afraid. I have developed this package on Ubuntu [Trusty Tahr](http://releases.ubuntu.com/14.04/) which ships with 3.13+ and verified its functionality on [Precise Pangolin](http://releases.ubuntu.com/12.04/) with upgraded kernel to version 3.10. I could worked around the `netlink` issues by using `ioctl` syscalls, but I decided to prefer "pure netlink" implementation, so suck it old Kernels. + +At the moment only functional tests are available, but the interface design should hopefully allow for easy (ish) unit testing in the future. I do appreciate that the package's **test coverage is not great at the moment**, but the core functionality should be covered. I would massively welcome PRs. + +## Get started + +There is a ```Vagrantfile``` available in the repo so using [vagrant](https://github.com/mitchellh/vagrant) is the easiest way to get started: + +```bash +milosgajdos@bimbonet ~ $ git clone https://github.com/milosgajdos/tenus.git +milosgajdos@bimbonet ~ $ vagrant up + +``` + +**Note** using the provided ```Vagrantfile``` will take quite a long time to spin the VM as vagrant will setup Ubuntu Trusty VM with all the prerequisities: + +* it will install golang and docker onto the VM +* it will export ```GOPATH``` and ```go get``` the **tenus** package onto the VM +* it will also "**pull**" Docker ubuntu image so that you can run the tests once the VM is set up + +At the moment running the tests require Docker to be installed, but in the future I'd love to separate tests per interface so that you can run only chosen test sets. + +Once the VM is running, ```cd``` into particular repo directory and you can run the tests: + +```bash +milosgajdos@bimbonet ~ $ cd $GOPATH/src/github.com/milosgajdos/tenus +milosgajdos@bimbonet ~ $ sudo go test +``` + +If you don't want to use the provided ```Vagrantfile```, you can simply run your own Linux VM (with 3.10+ kernel) and follow the regular golang development flow: + +```bash +milosgajdos@bimbonet ~ $ go get github.com/milosgajdos/tenus +milosgajdos@bimbonet ~ $ cd $GOPATH/src/github.com/milosgajdos/tenus +milosgajdos@bimbonet ~ $ sudo go test +``` + +Once you've got the package and ran the tests (you don't need to run the tests!), you can start hacking. Below you can find simple code samples to get started with the package. + +## Examples + +Below you can find a few code snippets which can help you get started writing your own programs. + +### New network bridge, add dummy link into it + +The example below shows a simple program example which creates a new network bridge, a new dummy network link and adds it into the bridge. + +```go +package main + +import ( + "fmt" + "log" + + "github.com/milosgajdos/tenus" +) + +func main() { + // Create a new network bridge + br, err := tenus.NewBridgeWithName("mybridge") + if err != nil { + log.Fatal(err) + } + + // Bring the bridge up + if err = br.SetLinkUp(); err != nil { + fmt.Println(err) + } + + // Create a dummy link + dl, err := tenus.NewLink("mydummylink") + if err != nil { + log.Fatal(err) + } + + // Add the dummy link into bridge + if err = br.AddSlaveIfc(dl.NetInterface()); err != nil { + log.Fatal(err) + } + + // Bring the dummy link up + if err = dl.SetLinkUp(); err != nil { + fmt.Println(err) + } +} +``` + +### New network bridge, veth pair, one peer in Docker + +The example below shows how you can create a new network bride, configure its IP address, add a new veth pair and send one of the veth peers into Docker with a given name. + +**!! You must make sure that particular Docker is runnig if you want the code sample below to work properly !!** So before you compile and run the program below you should create a particular docker with the below used name: + +```bash +milosgajdos@bimbonet ~ $ docker run -i -t --rm --privileged -h vethdckr --name vethdckr ubuntu:14.04 /bin/bash +``` + +```go +package main + +import ( + "fmt" + "log" + "net" + + "github.com/milosgajdos/tenus" +) + +func main() { + // CREATE BRIDGE AND BRING IT UP + br, err := tenus.NewBridgeWithName("vethbridge") + if err != nil { + log.Fatal(err) + } + + brIp, brIpNet, err := net.ParseCIDR("10.0.41.1/16") + if err != nil { + log.Fatal(err) + } + + if err := br.SetLinkIp(brIp, brIpNet); err != nil { + fmt.Println(err) + } + + if err = br.SetLinkUp(); err != nil { + fmt.Println(err) + } + + // CREATE VETH PAIR + veth, err := tenus.NewVethPairWithOptions("myveth01", tenus.VethOptions{PeerName: "myveth02"}) + if err != nil { + log.Fatal(err) + } + + // ASSIGN IP ADDRESS TO THE HOST VETH INTERFACE + vethHostIp, vethHostIpNet, err := net.ParseCIDR("10.0.41.2/16") + if err != nil { + log.Fatal(err) + } + + if err := veth.SetLinkIp(vethHostIp, vethHostIpNet); err != nil { + fmt.Println(err) + } + + // ADD MYVETH01 INTERFACE TO THE MYBRIDGE BRIDGE + myveth01, err := net.InterfaceByName("myveth01") + if err != nil { + log.Fatal(err) + } + + if err = br.AddSlaveIfc(myveth01); err != nil { + fmt.Println(err) + } + + if err = veth.SetLinkUp(); err != nil { + fmt.Println(err) + } + + // PASS VETH PEER INTERFACE TO A RUNNING DOCKER BY PID + pid, err := tenus.DockerPidByName("vethdckr", "/var/run/docker.sock") + if err != nil { + fmt.Println(err) + } + + if err := veth.SetPeerLinkNsPid(pid); err != nil { + log.Fatal(err) + } + + // ALLOCATE AND SET IP FOR THE NEW DOCKER INTERFACE + vethGuestIp, vethGuestIpNet, err := net.ParseCIDR("10.0.41.5/16") + if err != nil { + log.Fatal(err) + } + + if err := veth.SetPeerLinkNetInNs(pid, vethGuestIp, vethGuestIpNet, nil); err != nil { + log.Fatal(err) + } +} +``` + +### Working with existing bridges and interfaces + +The following examples show how to retrieve exisiting interfaces as a tenus link and bridge + +```go +package main + +import ( + "fmt" + "log" + "net" + + "github.com/milosgajdos/tenus" +) + +func main() { + // RETRIEVE EXISTING BRIDGE + br, err := tenus.BridgeFromName("bridge0") + if err != nil { + log.Fatal(err) + } + + // REMOVING AN IP FROM A BRIDGE INTERFACE (BEFORE RECONFIGURATION) + brIp, brIpNet, err := net.ParseCIDR("10.0.41.1/16") + if err != nil { + log.Fatal(err) + } + if err := br.UnsetLinkIp(brIp, brIpNet); err != nil { + log.Fatal(err) + } + + // RETRIEVE EXISTING INTERFACE + dl, err := tenus.NewLinkFrom("eth0") + if err != nil { + log.Fatal(err) + } + + // RENAMING AN INTERFACE BY NAME + if err := tenus.RenameInterfaceByName("vethPSQSEl", "vethNEWNAME"); err != nil { + log.Fatal(err) + } + +} +``` + +### VLAN and MAC VLAN interfaces + +You can check out [VLAN](https://gist.github.com/milosgajdos/9f68b1818dca886e9ae8) and [Mac VLAN](https://gist.github.com/milosgajdos/296fb90d076f259a5b0a) examples, too. + +### More examples + +Repo contains few more code sample in ```examples``` folder so make sure to check them out if you're interested. + +## TODO + +This is just a rough beginning of the project which I put together over couple of weeks in my free time. I'd like to integrate this into my own Docker fork and test the advanced netowrking functionality with the core of Docker as oppose to configuring network interfaces from a separate golang program, because advanced networking in Docker was the main motivation for writing this package. + +## Documentation + +More in depth package documentation is available via [godoc](http://godoc.org/github.com/milosgajdos/tenus) diff --git a/vendor/github.com/milosgajdos/tenus/Vagrantfile b/vendor/github.com/milosgajdos/tenus/Vagrantfile new file mode 100644 index 0000000..5cad380 --- /dev/null +++ b/vendor/github.com/milosgajdos/tenus/Vagrantfile @@ -0,0 +1,31 @@ +# -*- mode: ruby -*- +# vi: set ft=ruby : + +$provision = <