diff options
author | 2025-02-03 10:12:35 +0000 | |
---|---|---|
committer | 2025-02-03 10:12:35 +0000 | |
commit | c086d4048c2a26a0bf70c1ced24c78680a786710 (patch) | |
tree | cf7606e8452e9047d7f0e0d9b6de10edf7ebdc89 /vendor/github.com/cilium/ebpf/asm | |
parent | [chore]: Bump golang.org/x/oauth2 from 0.24.0 to 0.25.0 (#3725) (diff) | |
download | gotosocial-c086d4048c2a26a0bf70c1ced24c78680a786710.tar.xz |
[chore]: Bump github.com/KimMachineGun/automemlimit from 0.6.1 to 0.7.0 (#3726)
Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.6.1 to 0.7.0.
- [Release notes](https://github.com/KimMachineGun/automemlimit/releases)
- [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.6.1...v0.7.0)
---
updated-dependencies:
- dependency-name: github.com/KimMachineGun/automemlimit
dependency-type: direct:production
update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Diffstat (limited to 'vendor/github.com/cilium/ebpf/asm')
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/alu.go | 149 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/alu_string.go | 107 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/doc.go | 2 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/func.go | 242 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/func_string.go | 227 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/instruction.go | 859 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/jump.go | 127 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/jump_string.go | 53 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/load_store.go | 204 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/load_store_string.go | 80 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/metadata.go | 80 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/opcode.go | 271 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/opcode_string.go | 30 | ||||
-rw-r--r-- | vendor/github.com/cilium/ebpf/asm/register.go | 50 |
14 files changed, 0 insertions, 2481 deletions
diff --git a/vendor/github.com/cilium/ebpf/asm/alu.go b/vendor/github.com/cilium/ebpf/asm/alu.go deleted file mode 100644 index 70ccc4d15..000000000 --- a/vendor/github.com/cilium/ebpf/asm/alu.go +++ /dev/null @@ -1,149 +0,0 @@ -package asm - -//go:generate stringer -output alu_string.go -type=Source,Endianness,ALUOp - -// Source of ALU / ALU64 / Branch operations -// -// msb lsb -// +----+-+---+ -// |op |S|cls| -// +----+-+---+ -type Source uint8 - -const sourceMask OpCode = 0x08 - -// Source bitmask -const ( - // InvalidSource is returned by getters when invoked - // on non ALU / branch OpCodes. - InvalidSource Source = 0xff - // ImmSource src is from constant - ImmSource Source = 0x00 - // RegSource src is from register - RegSource Source = 0x08 -) - -// The Endianness of a byte swap instruction. -type Endianness uint8 - -const endianMask = sourceMask - -// Endian flags -const ( - InvalidEndian Endianness = 0xff - // Convert to little endian - LE Endianness = 0x00 - // Convert to big endian - BE Endianness = 0x08 -) - -// ALUOp are ALU / ALU64 operations -// -// msb lsb -// +----+-+---+ -// |OP |s|cls| -// +----+-+---+ -type ALUOp uint8 - -const aluMask OpCode = 0xf0 - -const ( - // InvalidALUOp is returned by getters when invoked - // on non ALU OpCodes - InvalidALUOp ALUOp = 0xff - // Add - addition - Add ALUOp = 0x00 - // Sub - subtraction - Sub ALUOp = 0x10 - // Mul - multiplication - Mul ALUOp = 0x20 - // Div - division - Div ALUOp = 0x30 - // Or - bitwise or - Or ALUOp = 0x40 - // And - bitwise and - And ALUOp = 0x50 - // LSh - bitwise shift left - LSh ALUOp = 0x60 - // RSh - bitwise shift right - RSh ALUOp = 0x70 - // Neg - sign/unsign signing bit - Neg ALUOp = 0x80 - // Mod - modulo - Mod ALUOp = 0x90 - // Xor - bitwise xor - Xor ALUOp = 0xa0 - // Mov - move value from one place to another - Mov ALUOp = 0xb0 - // ArSh - arithmatic shift - ArSh ALUOp = 0xc0 - // Swap - endian conversions - Swap ALUOp = 0xd0 -) - -// HostTo converts from host to another endianness. -func HostTo(endian Endianness, dst Register, size Size) Instruction { - var imm int64 - switch size { - case Half: - imm = 16 - case Word: - imm = 32 - case DWord: - imm = 64 - default: - return Instruction{OpCode: InvalidOpCode} - } - - return Instruction{ - OpCode: OpCode(ALUClass).SetALUOp(Swap).SetSource(Source(endian)), - Dst: dst, - Constant: imm, - } -} - -// Op returns the OpCode for an ALU operation with a given source. -func (op ALUOp) Op(source Source) OpCode { - return OpCode(ALU64Class).SetALUOp(op).SetSource(source) -} - -// Reg emits `dst (op) src`. -func (op ALUOp) Reg(dst, src Register) Instruction { - return Instruction{ - OpCode: op.Op(RegSource), - Dst: dst, - Src: src, - } -} - -// Imm emits `dst (op) value`. -func (op ALUOp) Imm(dst Register, value int32) Instruction { - return Instruction{ - OpCode: op.Op(ImmSource), - Dst: dst, - Constant: int64(value), - } -} - -// Op32 returns the OpCode for a 32-bit ALU operation with a given source. -func (op ALUOp) Op32(source Source) OpCode { - return OpCode(ALUClass).SetALUOp(op).SetSource(source) -} - -// Reg32 emits `dst (op) src`, zeroing the upper 32 bit of dst. -func (op ALUOp) Reg32(dst, src Register) Instruction { - return Instruction{ - OpCode: op.Op32(RegSource), - Dst: dst, - Src: src, - } -} - -// Imm32 emits `dst (op) value`, zeroing the upper 32 bit of dst. -func (op ALUOp) Imm32(dst Register, value int32) Instruction { - return Instruction{ - OpCode: op.Op32(ImmSource), - Dst: dst, - Constant: int64(value), - } -} diff --git a/vendor/github.com/cilium/ebpf/asm/alu_string.go b/vendor/github.com/cilium/ebpf/asm/alu_string.go deleted file mode 100644 index 72d3fe629..000000000 --- a/vendor/github.com/cilium/ebpf/asm/alu_string.go +++ /dev/null @@ -1,107 +0,0 @@ -// Code generated by "stringer -output alu_string.go -type=Source,Endianness,ALUOp"; DO NOT EDIT. - -package asm - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidSource-255] - _ = x[ImmSource-0] - _ = x[RegSource-8] -} - -const ( - _Source_name_0 = "ImmSource" - _Source_name_1 = "RegSource" - _Source_name_2 = "InvalidSource" -) - -func (i Source) String() string { - switch { - case i == 0: - return _Source_name_0 - case i == 8: - return _Source_name_1 - case i == 255: - return _Source_name_2 - default: - return "Source(" + strconv.FormatInt(int64(i), 10) + ")" - } -} -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidEndian-255] - _ = x[LE-0] - _ = x[BE-8] -} - -const ( - _Endianness_name_0 = "LE" - _Endianness_name_1 = "BE" - _Endianness_name_2 = "InvalidEndian" -) - -func (i Endianness) String() string { - switch { - case i == 0: - return _Endianness_name_0 - case i == 8: - return _Endianness_name_1 - case i == 255: - return _Endianness_name_2 - default: - return "Endianness(" + strconv.FormatInt(int64(i), 10) + ")" - } -} -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidALUOp-255] - _ = x[Add-0] - _ = x[Sub-16] - _ = x[Mul-32] - _ = x[Div-48] - _ = x[Or-64] - _ = x[And-80] - _ = x[LSh-96] - _ = x[RSh-112] - _ = x[Neg-128] - _ = x[Mod-144] - _ = x[Xor-160] - _ = x[Mov-176] - _ = x[ArSh-192] - _ = x[Swap-208] -} - -const _ALUOp_name = "AddSubMulDivOrAndLShRShNegModXorMovArShSwapInvalidALUOp" - -var _ALUOp_map = map[ALUOp]string{ - 0: _ALUOp_name[0:3], - 16: _ALUOp_name[3:6], - 32: _ALUOp_name[6:9], - 48: _ALUOp_name[9:12], - 64: _ALUOp_name[12:14], - 80: _ALUOp_name[14:17], - 96: _ALUOp_name[17:20], - 112: _ALUOp_name[20:23], - 128: _ALUOp_name[23:26], - 144: _ALUOp_name[26:29], - 160: _ALUOp_name[29:32], - 176: _ALUOp_name[32:35], - 192: _ALUOp_name[35:39], - 208: _ALUOp_name[39:43], - 255: _ALUOp_name[43:55], -} - -func (i ALUOp) String() string { - if str, ok := _ALUOp_map[i]; ok { - return str - } - return "ALUOp(" + strconv.FormatInt(int64(i), 10) + ")" -} diff --git a/vendor/github.com/cilium/ebpf/asm/doc.go b/vendor/github.com/cilium/ebpf/asm/doc.go deleted file mode 100644 index 7031bdc27..000000000 --- a/vendor/github.com/cilium/ebpf/asm/doc.go +++ /dev/null @@ -1,2 +0,0 @@ -// Package asm is an assembler for eBPF bytecode. -package asm diff --git a/vendor/github.com/cilium/ebpf/asm/func.go b/vendor/github.com/cilium/ebpf/asm/func.go deleted file mode 100644 index a14e9e2c3..000000000 --- a/vendor/github.com/cilium/ebpf/asm/func.go +++ /dev/null @@ -1,242 +0,0 @@ -package asm - -//go:generate stringer -output func_string.go -type=BuiltinFunc - -// BuiltinFunc is a built-in eBPF function. -type BuiltinFunc int32 - -func (_ BuiltinFunc) Max() BuiltinFunc { - return maxBuiltinFunc - 1 -} - -// eBPF built-in functions -// -// You can regenerate this list using the following gawk script: -// -// /FN\(.+\),/ { -// match($1, /\((.+)\)/, r) -// split(r[1], p, "_") -// printf "Fn" -// for (i in p) { -// printf "%s%s", toupper(substr(p[i], 1, 1)), substr(p[i], 2) -// } -// print "" -// } -// -// The script expects include/uapi/linux/bpf.h as it's input. -const ( - FnUnspec BuiltinFunc = iota - FnMapLookupElem - FnMapUpdateElem - FnMapDeleteElem - FnProbeRead - FnKtimeGetNs - FnTracePrintk - FnGetPrandomU32 - FnGetSmpProcessorId - FnSkbStoreBytes - FnL3CsumReplace - FnL4CsumReplace - FnTailCall - FnCloneRedirect - FnGetCurrentPidTgid - FnGetCurrentUidGid - FnGetCurrentComm - FnGetCgroupClassid - FnSkbVlanPush - FnSkbVlanPop - FnSkbGetTunnelKey - FnSkbSetTunnelKey - FnPerfEventRead - FnRedirect - FnGetRouteRealm - FnPerfEventOutput - FnSkbLoadBytes - FnGetStackid - FnCsumDiff - FnSkbGetTunnelOpt - FnSkbSetTunnelOpt - FnSkbChangeProto - FnSkbChangeType - FnSkbUnderCgroup - FnGetHashRecalc - FnGetCurrentTask - FnProbeWriteUser - FnCurrentTaskUnderCgroup - FnSkbChangeTail - FnSkbPullData - FnCsumUpdate - FnSetHashInvalid - FnGetNumaNodeId - FnSkbChangeHead - FnXdpAdjustHead - FnProbeReadStr - FnGetSocketCookie - FnGetSocketUid - FnSetHash - FnSetsockopt - FnSkbAdjustRoom - FnRedirectMap - FnSkRedirectMap - FnSockMapUpdate - FnXdpAdjustMeta - FnPerfEventReadValue - FnPerfProgReadValue - FnGetsockopt - FnOverrideReturn - FnSockOpsCbFlagsSet - FnMsgRedirectMap - FnMsgApplyBytes - FnMsgCorkBytes - FnMsgPullData - FnBind - FnXdpAdjustTail - FnSkbGetXfrmState - FnGetStack - FnSkbLoadBytesRelative - FnFibLookup - FnSockHashUpdate - FnMsgRedirectHash - FnSkRedirectHash - FnLwtPushEncap - FnLwtSeg6StoreBytes - FnLwtSeg6AdjustSrh - FnLwtSeg6Action - FnRcRepeat - FnRcKeydown - FnSkbCgroupId - FnGetCurrentCgroupId - FnGetLocalStorage - FnSkSelectReuseport - FnSkbAncestorCgroupId - FnSkLookupTcp - FnSkLookupUdp - FnSkRelease - FnMapPushElem - FnMapPopElem - FnMapPeekElem - FnMsgPushData - FnMsgPopData - FnRcPointerRel - FnSpinLock - FnSpinUnlock - FnSkFullsock - FnTcpSock - FnSkbEcnSetCe - FnGetListenerSock - FnSkcLookupTcp - FnTcpCheckSyncookie - FnSysctlGetName - FnSysctlGetCurrentValue - FnSysctlGetNewValue - FnSysctlSetNewValue - FnStrtol - FnStrtoul - FnSkStorageGet - FnSkStorageDelete - FnSendSignal - FnTcpGenSyncookie - FnSkbOutput - FnProbeReadUser - FnProbeReadKernel - FnProbeReadUserStr - FnProbeReadKernelStr - FnTcpSendAck - FnSendSignalThread - FnJiffies64 - FnReadBranchRecords - FnGetNsCurrentPidTgid - FnXdpOutput - FnGetNetnsCookie - FnGetCurrentAncestorCgroupId - FnSkAssign - FnKtimeGetBootNs - FnSeqPrintf - FnSeqWrite - FnSkCgroupId - FnSkAncestorCgroupId - FnRingbufOutput - FnRingbufReserve - FnRingbufSubmit - FnRingbufDiscard - FnRingbufQuery - FnCsumLevel - FnSkcToTcp6Sock - FnSkcToTcpSock - FnSkcToTcpTimewaitSock - FnSkcToTcpRequestSock - FnSkcToUdp6Sock - FnGetTaskStack - FnLoadHdrOpt - FnStoreHdrOpt - FnReserveHdrOpt - FnInodeStorageGet - FnInodeStorageDelete - FnDPath - FnCopyFromUser - FnSnprintfBtf - FnSeqPrintfBtf - FnSkbCgroupClassid - FnRedirectNeigh - FnPerCpuPtr - FnThisCpuPtr - FnRedirectPeer - FnTaskStorageGet - FnTaskStorageDelete - FnGetCurrentTaskBtf - FnBprmOptsSet - FnKtimeGetCoarseNs - FnImaInodeHash - FnSockFromFile - FnCheckMtu - FnForEachMapElem - FnSnprintf - FnSysBpf - FnBtfFindByNameKind - FnSysClose - FnTimerInit - FnTimerSetCallback - FnTimerStart - FnTimerCancel - FnGetFuncIp - FnGetAttachCookie - FnTaskPtRegs - FnGetBranchSnapshot - FnTraceVprintk - FnSkcToUnixSock - FnKallsymsLookupName - FnFindVma - FnLoop - FnStrncmp - FnGetFuncArg - FnGetFuncRet - FnGetFuncArgCnt - FnGetRetval - FnSetRetval - FnXdpGetBuffLen - FnXdpLoadBytes - FnXdpStoreBytes - FnCopyFromUserTask - FnSkbSetTstamp - FnImaFileHash - FnKptrXchg - FnMapLookupPercpuElem - FnSkcToMptcpSock - FnDynptrFromMem - FnRingbufReserveDynptr - FnRingbufSubmitDynptr - FnRingbufDiscardDynptr - FnDynptrRead - FnDynptrWrite - FnDynptrData - - maxBuiltinFunc -) - -// Call emits a function call. -func (fn BuiltinFunc) Call() Instruction { - return Instruction{ - OpCode: OpCode(JumpClass).SetJumpOp(Call), - Constant: int64(fn), - } -} diff --git a/vendor/github.com/cilium/ebpf/asm/func_string.go b/vendor/github.com/cilium/ebpf/asm/func_string.go deleted file mode 100644 index b7431b7f6..000000000 --- a/vendor/github.com/cilium/ebpf/asm/func_string.go +++ /dev/null @@ -1,227 +0,0 @@ -// Code generated by "stringer -output func_string.go -type=BuiltinFunc"; DO NOT EDIT. - -package asm - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[FnUnspec-0] - _ = x[FnMapLookupElem-1] - _ = x[FnMapUpdateElem-2] - _ = x[FnMapDeleteElem-3] - _ = x[FnProbeRead-4] - _ = x[FnKtimeGetNs-5] - _ = x[FnTracePrintk-6] - _ = x[FnGetPrandomU32-7] - _ = x[FnGetSmpProcessorId-8] - _ = x[FnSkbStoreBytes-9] - _ = x[FnL3CsumReplace-10] - _ = x[FnL4CsumReplace-11] - _ = x[FnTailCall-12] - _ = x[FnCloneRedirect-13] - _ = x[FnGetCurrentPidTgid-14] - _ = x[FnGetCurrentUidGid-15] - _ = x[FnGetCurrentComm-16] - _ = x[FnGetCgroupClassid-17] - _ = x[FnSkbVlanPush-18] - _ = x[FnSkbVlanPop-19] - _ = x[FnSkbGetTunnelKey-20] - _ = x[FnSkbSetTunnelKey-21] - _ = x[FnPerfEventRead-22] - _ = x[FnRedirect-23] - _ = x[FnGetRouteRealm-24] - _ = x[FnPerfEventOutput-25] - _ = x[FnSkbLoadBytes-26] - _ = x[FnGetStackid-27] - _ = x[FnCsumDiff-28] - _ = x[FnSkbGetTunnelOpt-29] - _ = x[FnSkbSetTunnelOpt-30] - _ = x[FnSkbChangeProto-31] - _ = x[FnSkbChangeType-32] - _ = x[FnSkbUnderCgroup-33] - _ = x[FnGetHashRecalc-34] - _ = x[FnGetCurrentTask-35] - _ = x[FnProbeWriteUser-36] - _ = x[FnCurrentTaskUnderCgroup-37] - _ = x[FnSkbChangeTail-38] - _ = x[FnSkbPullData-39] - _ = x[FnCsumUpdate-40] - _ = x[FnSetHashInvalid-41] - _ = x[FnGetNumaNodeId-42] - _ = x[FnSkbChangeHead-43] - _ = x[FnXdpAdjustHead-44] - _ = x[FnProbeReadStr-45] - _ = x[FnGetSocketCookie-46] - _ = x[FnGetSocketUid-47] - _ = x[FnSetHash-48] - _ = x[FnSetsockopt-49] - _ = x[FnSkbAdjustRoom-50] - _ = x[FnRedirectMap-51] - _ = x[FnSkRedirectMap-52] - _ = x[FnSockMapUpdate-53] - _ = x[FnXdpAdjustMeta-54] - _ = x[FnPerfEventReadValue-55] - _ = x[FnPerfProgReadValue-56] - _ = x[FnGetsockopt-57] - _ = x[FnOverrideReturn-58] - _ = x[FnSockOpsCbFlagsSet-59] - _ = x[FnMsgRedirectMap-60] - _ = x[FnMsgApplyBytes-61] - _ = x[FnMsgCorkBytes-62] - _ = x[FnMsgPullData-63] - _ = x[FnBind-64] - _ = x[FnXdpAdjustTail-65] - _ = x[FnSkbGetXfrmState-66] - _ = x[FnGetStack-67] - _ = x[FnSkbLoadBytesRelative-68] - _ = x[FnFibLookup-69] - _ = x[FnSockHashUpdate-70] - _ = x[FnMsgRedirectHash-71] - _ = x[FnSkRedirectHash-72] - _ = x[FnLwtPushEncap-73] - _ = x[FnLwtSeg6StoreBytes-74] - _ = x[FnLwtSeg6AdjustSrh-75] - _ = x[FnLwtSeg6Action-76] - _ = x[FnRcRepeat-77] - _ = x[FnRcKeydown-78] - _ = x[FnSkbCgroupId-79] - _ = x[FnGetCurrentCgroupId-80] - _ = x[FnGetLocalStorage-81] - _ = x[FnSkSelectReuseport-82] - _ = x[FnSkbAncestorCgroupId-83] - _ = x[FnSkLookupTcp-84] - _ = x[FnSkLookupUdp-85] - _ = x[FnSkRelease-86] - _ = x[FnMapPushElem-87] - _ = x[FnMapPopElem-88] - _ = x[FnMapPeekElem-89] - _ = x[FnMsgPushData-90] - _ = x[FnMsgPopData-91] - _ = x[FnRcPointerRel-92] - _ = x[FnSpinLock-93] - _ = x[FnSpinUnlock-94] - _ = x[FnSkFullsock-95] - _ = x[FnTcpSock-96] - _ = x[FnSkbEcnSetCe-97] - _ = x[FnGetListenerSock-98] - _ = x[FnSkcLookupTcp-99] - _ = x[FnTcpCheckSyncookie-100] - _ = x[FnSysctlGetName-101] - _ = x[FnSysctlGetCurrentValue-102] - _ = x[FnSysctlGetNewValue-103] - _ = x[FnSysctlSetNewValue-104] - _ = x[FnStrtol-105] - _ = x[FnStrtoul-106] - _ = x[FnSkStorageGet-107] - _ = x[FnSkStorageDelete-108] - _ = x[FnSendSignal-109] - _ = x[FnTcpGenSyncookie-110] - _ = x[FnSkbOutput-111] - _ = x[FnProbeReadUser-112] - _ = x[FnProbeReadKernel-113] - _ = x[FnProbeReadUserStr-114] - _ = x[FnProbeReadKernelStr-115] - _ = x[FnTcpSendAck-116] - _ = x[FnSendSignalThread-117] - _ = x[FnJiffies64-118] - _ = x[FnReadBranchRecords-119] - _ = x[FnGetNsCurrentPidTgid-120] - _ = x[FnXdpOutput-121] - _ = x[FnGetNetnsCookie-122] - _ = x[FnGetCurrentAncestorCgroupId-123] - _ = x[FnSkAssign-124] - _ = x[FnKtimeGetBootNs-125] - _ = x[FnSeqPrintf-126] - _ = x[FnSeqWrite-127] - _ = x[FnSkCgroupId-128] - _ = x[FnSkAncestorCgroupId-129] - _ = x[FnRingbufOutput-130] - _ = x[FnRingbufReserve-131] - _ = x[FnRingbufSubmit-132] - _ = x[FnRingbufDiscard-133] - _ = x[FnRingbufQuery-134] - _ = x[FnCsumLevel-135] - _ = x[FnSkcToTcp6Sock-136] - _ = x[FnSkcToTcpSock-137] - _ = x[FnSkcToTcpTimewaitSock-138] - _ = x[FnSkcToTcpRequestSock-139] - _ = x[FnSkcToUdp6Sock-140] - _ = x[FnGetTaskStack-141] - _ = x[FnLoadHdrOpt-142] - _ = x[FnStoreHdrOpt-143] - _ = x[FnReserveHdrOpt-144] - _ = x[FnInodeStorageGet-145] - _ = x[FnInodeStorageDelete-146] - _ = x[FnDPath-147] - _ = x[FnCopyFromUser-148] - _ = x[FnSnprintfBtf-149] - _ = x[FnSeqPrintfBtf-150] - _ = x[FnSkbCgroupClassid-151] - _ = x[FnRedirectNeigh-152] - _ = x[FnPerCpuPtr-153] - _ = x[FnThisCpuPtr-154] - _ = x[FnRedirectPeer-155] - _ = x[FnTaskStorageGet-156] - _ = x[FnTaskStorageDelete-157] - _ = x[FnGetCurrentTaskBtf-158] - _ = x[FnBprmOptsSet-159] - _ = x[FnKtimeGetCoarseNs-160] - _ = x[FnImaInodeHash-161] - _ = x[FnSockFromFile-162] - _ = x[FnCheckMtu-163] - _ = x[FnForEachMapElem-164] - _ = x[FnSnprintf-165] - _ = x[FnSysBpf-166] - _ = x[FnBtfFindByNameKind-167] - _ = x[FnSysClose-168] - _ = x[FnTimerInit-169] - _ = x[FnTimerSetCallback-170] - _ = x[FnTimerStart-171] - _ = x[FnTimerCancel-172] - _ = x[FnGetFuncIp-173] - _ = x[FnGetAttachCookie-174] - _ = x[FnTaskPtRegs-175] - _ = x[FnGetBranchSnapshot-176] - _ = x[FnTraceVprintk-177] - _ = x[FnSkcToUnixSock-178] - _ = x[FnKallsymsLookupName-179] - _ = x[FnFindVma-180] - _ = x[FnLoop-181] - _ = x[FnStrncmp-182] - _ = x[FnGetFuncArg-183] - _ = x[FnGetFuncRet-184] - _ = x[FnGetFuncArgCnt-185] - _ = x[FnGetRetval-186] - _ = x[FnSetRetval-187] - _ = x[FnXdpGetBuffLen-188] - _ = x[FnXdpLoadBytes-189] - _ = x[FnXdpStoreBytes-190] - _ = x[FnCopyFromUserTask-191] - _ = x[FnSkbSetTstamp-192] - _ = x[FnImaFileHash-193] - _ = x[FnKptrXchg-194] - _ = x[FnMapLookupPercpuElem-195] - _ = x[FnSkcToMptcpSock-196] - _ = x[FnDynptrFromMem-197] - _ = x[FnRingbufReserveDynptr-198] - _ = x[FnRingbufSubmitDynptr-199] - _ = x[FnRingbufDiscardDynptr-200] - _ = x[FnDynptrRead-201] - _ = x[FnDynptrWrite-202] - _ = x[FnDynptrData-203] - _ = x[maxBuiltinFunc-204] -} - -const _BuiltinFunc_name = "FnUnspecFnMapLookupElemFnMapUpdateElemFnMapDeleteElemFnProbeReadFnKtimeGetNsFnTracePrintkFnGetPrandomU32FnGetSmpProcessorIdFnSkbStoreBytesFnL3CsumReplaceFnL4CsumReplaceFnTailCallFnCloneRedirectFnGetCurrentPidTgidFnGetCurrentUidGidFnGetCurrentCommFnGetCgroupClassidFnSkbVlanPushFnSkbVlanPopFnSkbGetTunnelKeyFnSkbSetTunnelKeyFnPerfEventReadFnRedirectFnGetRouteRealmFnPerfEventOutputFnSkbLoadBytesFnGetStackidFnCsumDiffFnSkbGetTunnelOptFnSkbSetTunnelOptFnSkbChangeProtoFnSkbChangeTypeFnSkbUnderCgroupFnGetHashRecalcFnGetCurrentTaskFnProbeWriteUserFnCurrentTaskUnderCgroupFnSkbChangeTailFnSkbPullDataFnCsumUpdateFnSetHashInvalidFnGetNumaNodeIdFnSkbChangeHeadFnXdpAdjustHeadFnProbeReadStrFnGetSocketCookieFnGetSocketUidFnSetHashFnSetsockoptFnSkbAdjustRoomFnRedirectMapFnSkRedirectMapFnSockMapUpdateFnXdpAdjustMetaFnPerfEventReadValueFnPerfProgReadValueFnGetsockoptFnOverrideReturnFnSockOpsCbFlagsSetFnMsgRedirectMapFnMsgApplyBytesFnMsgCorkBytesFnMsgPullDataFnBindFnXdpAdjustTailFnSkbGetXfrmStateFnGetStackFnSkbLoadBytesRelativeFnFibLookupFnSockHashUpdateFnMsgRedirectHashFnSkRedirectHashFnLwtPushEncapFnLwtSeg6StoreBytesFnLwtSeg6AdjustSrhFnLwtSeg6ActionFnRcRepeatFnRcKeydownFnSkbCgroupIdFnGetCurrentCgroupIdFnGetLocalStorageFnSkSelectReuseportFnSkbAncestorCgroupIdFnSkLookupTcpFnSkLookupUdpFnSkReleaseFnMapPushElemFnMapPopElemFnMapPeekElemFnMsgPushDataFnMsgPopDataFnRcPointerRelFnSpinLockFnSpinUnlockFnSkFullsockFnTcpSockFnSkbEcnSetCeFnGetListenerSockFnSkcLookupTcpFnTcpCheckSyncookieFnSysctlGetNameFnSysctlGetCurrentValueFnSysctlGetNewValueFnSysctlSetNewValueFnStrtolFnStrtoulFnSkStorageGetFnSkStorageDeleteFnSendSignalFnTcpGenSyncookieFnSkbOutputFnProbeReadUserFnProbeReadKernelFnProbeReadUserStrFnProbeReadKernelStrFnTcpSendAckFnSendSignalThreadFnJiffies64FnReadBranchRecordsFnGetNsCurrentPidTgidFnXdpOutputFnGetNetnsCookieFnGetCurrentAncestorCgroupIdFnSkAssignFnKtimeGetBootNsFnSeqPrintfFnSeqWriteFnSkCgroupIdFnSkAncestorCgroupIdFnRingbufOutputFnRingbufReserveFnRingbufSubmitFnRingbufDiscardFnRingbufQueryFnCsumLevelFnSkcToTcp6SockFnSkcToTcpSockFnSkcToTcpTimewaitSockFnSkcToTcpRequestSockFnSkcToUdp6SockFnGetTaskStackFnLoadHdrOptFnStoreHdrOptFnReserveHdrOptFnInodeStorageGetFnInodeStorageDeleteFnDPathFnCopyFromUserFnSnprintfBtfFnSeqPrintfBtfFnSkbCgroupClassidFnRedirectNeighFnPerCpuPtrFnThisCpuPtrFnRedirectPeerFnTaskStorageGetFnTaskStorageDeleteFnGetCurrentTaskBtfFnBprmOptsSetFnKtimeGetCoarseNsFnImaInodeHashFnSockFromFileFnCheckMtuFnForEachMapElemFnSnprintfFnSysBpfFnBtfFindByNameKindFnSysCloseFnTimerInitFnTimerSetCallbackFnTimerStartFnTimerCancelFnGetFuncIpFnGetAttachCookieFnTaskPtRegsFnGetBranchSnapshotFnTraceVprintkFnSkcToUnixSockFnKallsymsLookupNameFnFindVmaFnLoopFnStrncmpFnGetFuncArgFnGetFuncRetFnGetFuncArgCntFnGetRetvalFnSetRetvalFnXdpGetBuffLenFnXdpLoadBytesFnXdpStoreBytesFnCopyFromUserTaskFnSkbSetTstampFnImaFileHashFnKptrXchgFnMapLookupPercpuElemFnSkcToMptcpSockFnDynptrFromMemFnRingbufReserveDynptrFnRingbufSubmitDynptrFnRingbufDiscardDynptrFnDynptrReadFnDynptrWriteFnDynptrDatamaxBuiltinFunc" - -var _BuiltinFunc_index = [...]uint16{0, 8, 23, 38, 53, 64, 76, 89, 104, 123, 138, 153, 168, 178, 193, 212, 230, 246, 264, 277, 289, 306, 323, 338, 348, 363, 380, 394, 406, 416, 433, 450, 466, 481, 497, 512, 528, 544, 568, 583, 596, 608, 624, 639, 654, 669, 683, 700, 714, 723, 735, 750, 763, 778, 793, 808, 828, 847, 859, 875, 894, 910, 925, 939, 952, 958, 973, 990, 1000, 1022, 1033, 1049, 1066, 1082, 1096, 1115, 1133, 1148, 1158, 1169, 1182, 1202, 1219, 1238, 1259, 1272, 1285, 1296, 1309, 1321, 1334, 1347, 1359, 1373, 1383, 1395, 1407, 1416, 1429, 1446, 1460, 1479, 1494, 1517, 1536, 1555, 1563, 1572, 1586, 1603, 1615, 1632, 1643, 1658, 1675, 1693, 1713, 1725, 1743, 1754, 1773, 1794, 1805, 1821, 1849, 1859, 1875, 1886, 1896, 1908, 1928, 1943, 1959, 1974, 1990, 2004, 2015, 2030, 2044, 2066, 2087, 2102, 2116, 2128, 2141, 2156, 2173, 2193, 2200, 2214, 2227, 2241, 2259, 2274, 2285, 2297, 2311, 2327, 2346, 2365, 2378, 2396, 2410, 2424, 2434, 2450, 2460, 2468, 2487, 2497, 2508, 2526, 2538, 2551, 2562, 2579, 2591, 2610, 2624, 2639, 2659, 2668, 2674, 2683, 2695, 2707, 2722, 2733, 2744, 2759, 2773, 2788, 2806, 2820, 2833, 2843, 2864, 2880, 2895, 2917, 2938, 2960, 2972, 2985, 2997, 3011} - -func (i BuiltinFunc) String() string { - if i < 0 || i >= BuiltinFunc(len(_BuiltinFunc_index)-1) { - return "BuiltinFunc(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _BuiltinFunc_name[_BuiltinFunc_index[i]:_BuiltinFunc_index[i+1]] -} diff --git a/vendor/github.com/cilium/ebpf/asm/instruction.go b/vendor/github.com/cilium/ebpf/asm/instruction.go deleted file mode 100644 index f17d88b51..000000000 --- a/vendor/github.com/cilium/ebpf/asm/instruction.go +++ /dev/null @@ -1,859 +0,0 @@ -package asm - -import ( - "crypto/sha1" - "encoding/binary" - "encoding/hex" - "errors" - "fmt" - "io" - "math" - "sort" - "strings" - - "github.com/cilium/ebpf/internal/sys" - "github.com/cilium/ebpf/internal/unix" -) - -// InstructionSize is the size of a BPF instruction in bytes -const InstructionSize = 8 - -// RawInstructionOffset is an offset in units of raw BPF instructions. -type RawInstructionOffset uint64 - -var ErrUnreferencedSymbol = errors.New("unreferenced symbol") -var ErrUnsatisfiedMapReference = errors.New("unsatisfied map reference") -var ErrUnsatisfiedProgramReference = errors.New("unsatisfied program reference") - -// Bytes returns the offset of an instruction in bytes. -func (rio RawInstructionOffset) Bytes() uint64 { - return uint64(rio) * InstructionSize -} - -// Instruction is a single eBPF instruction. -type Instruction struct { - OpCode OpCode - Dst Register - Src Register - Offset int16 - Constant int64 - - // Metadata contains optional metadata about this instruction. - Metadata Metadata -} - -// Unmarshal decodes a BPF instruction. -func (ins *Instruction) Unmarshal(r io.Reader, bo binary.ByteOrder) (uint64, error) { - data := make([]byte, InstructionSize) - if _, err := io.ReadFull(r, data); err != nil { - return 0, err - } - - ins.OpCode = OpCode(data[0]) - - regs := data[1] - switch bo { - case binary.LittleEndian: - ins.Dst, ins.Src = Register(regs&0xF), Register(regs>>4) - case binary.BigEndian: - ins.Dst, ins.Src = Register(regs>>4), Register(regs&0xf) - } - - ins.Offset = int16(bo.Uint16(data[2:4])) - // Convert to int32 before widening to int64 - // to ensure the signed bit is carried over. - ins.Constant = int64(int32(bo.Uint32(data[4:8]))) - - if !ins.OpCode.IsDWordLoad() { - return InstructionSize, nil - } - - // Pull another instruction from the stream to retrieve the second - // half of the 64-bit immediate value. - if _, err := io.ReadFull(r, data); err != nil { - // No Wrap, to avoid io.EOF clash - return 0, errors.New("64bit immediate is missing second half") - } - - // Require that all fields other than the value are zero. - if bo.Uint32(data[0:4]) != 0 { - return 0, errors.New("64bit immediate has non-zero fields") - } - - cons1 := uint32(ins.Constant) - cons2 := int32(bo.Uint32(data[4:8])) - ins.Constant = int64(cons2)<<32 | int64(cons1) - - return 2 * InstructionSize, nil -} - -// Marshal encodes a BPF instruction. -func (ins Instruction) Marshal(w io.Writer, bo binary.ByteOrder) (uint64, error) { - if ins.OpCode == InvalidOpCode { - return 0, errors.New("invalid opcode") - } - - isDWordLoad := ins.OpCode.IsDWordLoad() - - cons := int32(ins.Constant) - if isDWordLoad { - // Encode least significant 32bit first for 64bit operations. - cons = int32(uint32(ins.Constant)) - } - - regs, err := newBPFRegisters(ins.Dst, ins.Src, bo) - if err != nil { - return 0, fmt.Errorf("can't marshal registers: %s", err) - } - - data := make([]byte, InstructionSize) - data[0] = byte(ins.OpCode) - data[1] = byte(regs) - bo.PutUint16(data[2:4], uint16(ins.Offset)) - bo.PutUint32(data[4:8], uint32(cons)) - if _, err := w.Write(data); err != nil { - return 0, err - } - - if !isDWordLoad { - return InstructionSize, nil - } - - // The first half of the second part of a double-wide instruction - // must be zero. The second half carries the value. - bo.PutUint32(data[0:4], 0) - bo.PutUint32(data[4:8], uint32(ins.Constant>>32)) - if _, err := w.Write(data); err != nil { - return 0, err - } - - return 2 * InstructionSize, nil -} - -// AssociateMap associates a Map with this Instruction. -// -// Implicitly clears the Instruction's Reference field. -// -// Returns an error if the Instruction is not a map load. -func (ins *Instruction) AssociateMap(m FDer) error { - if !ins.IsLoadFromMap() { - return errors.New("not a load from a map") - } - - ins.Metadata.Set(referenceMeta{}, nil) - ins.Metadata.Set(mapMeta{}, m) - - return nil -} - -// RewriteMapPtr changes an instruction to use a new map fd. -// -// Returns an error if the instruction doesn't load a map. -// -// Deprecated: use AssociateMap instead. If you cannot provide a Map, -// wrap an fd in a type implementing FDer. -func (ins *Instruction) RewriteMapPtr(fd int) error { - if !ins.IsLoadFromMap() { - return errors.New("not a load from a map") - } - - ins.encodeMapFD(fd) - - return nil -} - -func (ins *Instruction) encodeMapFD(fd int) { - // Preserve the offset value for direct map loads. - offset := uint64(ins.Constant) & (math.MaxUint32 << 32) - rawFd := uint64(uint32(fd)) - ins.Constant = int64(offset | rawFd) -} - -// MapPtr returns the map fd for this instruction. -// -// The result is undefined if the instruction is not a load from a map, -// see IsLoadFromMap. -// -// Deprecated: use Map() instead. -func (ins *Instruction) MapPtr() int { - // If there is a map associated with the instruction, return its FD. - if fd := ins.Metadata.Get(mapMeta{}); fd != nil { - return fd.(FDer).FD() - } - - // Fall back to the fd stored in the Constant field - return ins.mapFd() -} - -// mapFd returns the map file descriptor stored in the 32 least significant -// bits of ins' Constant field. -func (ins *Instruction) mapFd() int { - return int(int32(ins.Constant)) -} - -// RewriteMapOffset changes the offset of a direct load from a map. -// -// Returns an error if the instruction is not a direct load. -func (ins *Instruction) RewriteMapOffset(offset uint32) error { - if !ins.OpCode.IsDWordLoad() { - return fmt.Errorf("%s is not a 64 bit load", ins.OpCode) - } - - if ins.Src != PseudoMapValue { - return errors.New("not a direct load from a map") - } - - fd := uint64(ins.Constant) & math.MaxUint32 - ins.Constant = int64(uint64(offset)<<32 | fd) - return nil -} - -func (ins *Instruction) mapOffset() uint32 { - return uint32(uint64(ins.Constant) >> 32) -} - -// IsLoadFromMap returns true if the instruction loads from a map. -// -// This covers both loading the map pointer and direct map value loads. -func (ins *Instruction) IsLoadFromMap() bool { - return ins.OpCode == LoadImmOp(DWord) && (ins.Src == PseudoMapFD || ins.Src == PseudoMapValue) -} - -// IsFunctionCall returns true if the instruction calls another BPF function. -// -// This is not the same thing as a BPF helper call. -func (ins *Instruction) IsFunctionCall() bool { - return ins.OpCode.JumpOp() == Call && ins.Src == PseudoCall -} - -// IsLoadOfFunctionPointer returns true if the instruction loads a function pointer. -func (ins *Instruction) IsLoadOfFunctionPointer() bool { - return ins.OpCode.IsDWordLoad() && ins.Src == PseudoFunc -} - -// IsFunctionReference returns true if the instruction references another BPF -// function, either by invoking a Call jump operation or by loading a function -// pointer. -func (ins *Instruction) IsFunctionReference() bool { - return ins.IsFunctionCall() || ins.IsLoadOfFunctionPointer() -} - -// IsBuiltinCall returns true if the instruction is a built-in call, i.e. BPF helper call. -func (ins *Instruction) IsBuiltinCall() bool { - return ins.OpCode.JumpOp() == Call && ins.Src == R0 && ins.Dst == R0 -} - -// IsConstantLoad returns true if the instruction loads a constant of the -// given size. -func (ins *Instruction) IsConstantLoad(size Size) bool { - return ins.OpCode == LoadImmOp(size) && ins.Src == R0 && ins.Offset == 0 -} - -// Format implements fmt.Formatter. -func (ins Instruction) Format(f fmt.State, c rune) { - if c != 'v' { - fmt.Fprintf(f, "{UNRECOGNIZED: %c}", c) - return - } - - op := ins.OpCode - - if op == InvalidOpCode { - fmt.Fprint(f, "INVALID") - return - } - - // Omit trailing space for Exit - if op.JumpOp() == Exit { - fmt.Fprint(f, op) - return - } - - if ins.IsLoadFromMap() { - fd := ins.mapFd() - m := ins.Map() - switch ins.Src { - case PseudoMapFD: - if m != nil { - fmt.Fprintf(f, "LoadMapPtr dst: %s map: %s", ins.Dst, m) - } else { - fmt.Fprintf(f, "LoadMapPtr dst: %s fd: %d", ins.Dst, fd) - } - - case PseudoMapValue: - if m != nil { - fmt.Fprintf(f, "LoadMapValue dst: %s, map: %s off: %d", ins.Dst, m, ins.mapOffset()) - } else { - fmt.Fprintf(f, "LoadMapValue dst: %s, fd: %d off: %d", ins.Dst, fd, ins.mapOffset()) - } - } - - goto ref - } - - fmt.Fprintf(f, "%v ", op) - switch cls := op.Class(); { - case cls.isLoadOrStore(): - switch op.Mode() { - case ImmMode: - fmt.Fprintf(f, "dst: %s imm: %d", ins.Dst, ins.Constant) - case AbsMode: - fmt.Fprintf(f, "imm: %d", ins.Constant) - case IndMode: - fmt.Fprintf(f, "dst: %s src: %s imm: %d", ins.Dst, ins.Src, ins.Constant) - case MemMode: - fmt.Fprintf(f, "dst: %s src: %s off: %d imm: %d", ins.Dst, ins.Src, ins.Offset, ins.Constant) - case XAddMode: - fmt.Fprintf(f, "dst: %s src: %s", ins.Dst, ins.Src) - } - - case cls.IsALU(): - fmt.Fprintf(f, "dst: %s ", ins.Dst) - if op.ALUOp() == Swap || op.Source() == ImmSource { - fmt.Fprintf(f, "imm: %d", ins.Constant) - } else { - fmt.Fprintf(f, "src: %s", ins.Src) - } - - case cls.IsJump(): - switch jop := op.JumpOp(); jop { - case Call: - if ins.Src == PseudoCall { - // bpf-to-bpf call - fmt.Fprint(f, ins.Constant) - } else { - fmt.Fprint(f, BuiltinFunc(ins.Constant)) - } - - default: - fmt.Fprintf(f, "dst: %s off: %d ", ins.Dst, ins.Offset) - if op.Source() == ImmSource { - fmt.Fprintf(f, "imm: %d", ins.Constant) - } else { - fmt.Fprintf(f, "src: %s", ins.Src) - } - } - } - -ref: - if ins.Reference() != "" { - fmt.Fprintf(f, " <%s>", ins.Reference()) - } -} - -func (ins Instruction) equal(other Instruction) bool { - return ins.OpCode == other.OpCode && - ins.Dst == other.Dst && - ins.Src == other.Src && - ins.Offset == other.Offset && - ins.Constant == other.Constant -} - -// Size returns the amount of bytes ins would occupy in binary form. -func (ins Instruction) Size() uint64 { - return uint64(InstructionSize * ins.OpCode.rawInstructions()) -} - -type symbolMeta struct{} - -// WithSymbol marks the Instruction as a Symbol, which other Instructions -// can point to using corresponding calls to WithReference. -func (ins Instruction) WithSymbol(name string) Instruction { - ins.Metadata.Set(symbolMeta{}, name) - return ins -} - -// Sym creates a symbol. -// -// Deprecated: use WithSymbol instead. -func (ins Instruction) Sym(name string) Instruction { - return ins.WithSymbol(name) -} - -// Symbol returns the value ins has been marked with using WithSymbol, -// otherwise returns an empty string. A symbol is often an Instruction -// at the start of a function body. -func (ins Instruction) Symbol() string { - sym, _ := ins.Metadata.Get(symbolMeta{}).(string) - return sym -} - -type referenceMeta struct{} - -// WithReference makes ins reference another Symbol or map by name. -func (ins Instruction) WithReference(ref string) Instruction { - ins.Metadata.Set(referenceMeta{}, ref) - return ins -} - -// Reference returns the Symbol or map name referenced by ins, if any. -func (ins Instruction) Reference() string { - ref, _ := ins.Metadata.Get(referenceMeta{}).(string) - return ref -} - -type mapMeta struct{} - -// Map returns the Map referenced by ins, if any. -// An Instruction will contain a Map if e.g. it references an existing, -// pinned map that was opened during ELF loading. -func (ins Instruction) Map() FDer { - fd, _ := ins.Metadata.Get(mapMeta{}).(FDer) - return fd -} - -type sourceMeta struct{} - -// WithSource adds source information about the Instruction. -func (ins Instruction) WithSource(src fmt.Stringer) Instruction { - ins.Metadata.Set(sourceMeta{}, src) - return ins -} - -// Source returns source information about the Instruction. The field is -// present when the compiler emits BTF line info about the Instruction and -// usually contains the line of source code responsible for it. -func (ins Instruction) Source() fmt.Stringer { - str, _ := ins.Metadata.Get(sourceMeta{}).(fmt.Stringer) - return str -} - -// A Comment can be passed to Instruction.WithSource to add a comment -// to an instruction. -type Comment string - -func (s Comment) String() string { - return string(s) -} - -// FDer represents a resource tied to an underlying file descriptor. -// Used as a stand-in for e.g. ebpf.Map since that type cannot be -// imported here and FD() is the only method we rely on. -type FDer interface { - FD() int -} - -// Instructions is an eBPF program. -type Instructions []Instruction - -// Unmarshal unmarshals an Instructions from a binary instruction stream. -// All instructions in insns are replaced by instructions decoded from r. -func (insns *Instructions) Unmarshal(r io.Reader, bo binary.ByteOrder) error { - if len(*insns) > 0 { - *insns = nil - } - - var offset uint64 - for { - var ins Instruction - n, err := ins.Unmarshal(r, bo) - if errors.Is(err, io.EOF) { - break - } - if err != nil { - return fmt.Errorf("offset %d: %w", offset, err) - } - - *insns = append(*insns, ins) - offset += n - } - - return nil -} - -// Name returns the name of the function insns belongs to, if any. -func (insns Instructions) Name() string { - if len(insns) == 0 { - return "" - } - return insns[0].Symbol() -} - -func (insns Instructions) String() string { - return fmt.Sprint(insns) -} - -// Size returns the amount of bytes insns would occupy in binary form. -func (insns Instructions) Size() uint64 { - var sum uint64 - for _, ins := range insns { - sum += ins.Size() - } - return sum -} - -// AssociateMap updates all Instructions that Reference the given symbol -// to point to an existing Map m instead. -// -// Returns ErrUnreferencedSymbol error if no references to symbol are found -// in insns. If symbol is anything else than the symbol name of map (e.g. -// a bpf2bpf subprogram), an error is returned. -func (insns Instructions) AssociateMap(symbol string, m FDer) error { - if symbol == "" { - return errors.New("empty symbol") - } - - var found bool - for i := range insns { - ins := &insns[i] - if ins.Reference() != symbol { - continue - } - - if err := ins.AssociateMap(m); err != nil { - return err - } - - found = true - } - - if !found { - return fmt.Errorf("symbol %s: %w", symbol, ErrUnreferencedSymbol) - } - - return nil -} - -// RewriteMapPtr rewrites all loads of a specific map pointer to a new fd. -// -// Returns ErrUnreferencedSymbol if the symbol isn't used. -// -// Deprecated: use AssociateMap instead. -func (insns Instructions) RewriteMapPtr(symbol string, fd int) error { - if symbol == "" { - return errors.New("empty symbol") - } - - var found bool - for i := range insns { - ins := &insns[i] - if ins.Reference() != symbol { - continue - } - - if !ins.IsLoadFromMap() { - return errors.New("not a load from a map") - } - - ins.encodeMapFD(fd) - - found = true - } - - if !found { - return fmt.Errorf("symbol %s: %w", symbol, ErrUnreferencedSymbol) - } - - return nil -} - -// SymbolOffsets returns the set of symbols and their offset in -// the instructions. -func (insns Instructions) SymbolOffsets() (map[string]int, error) { - offsets := make(map[string]int) - - for i, ins := range insns { - if ins.Symbol() == "" { - continue - } - - if _, ok := offsets[ins.Symbol()]; ok { - return nil, fmt.Errorf("duplicate symbol %s", ins.Symbol()) - } - - offsets[ins.Symbol()] = i - } - - return offsets, nil -} - -// FunctionReferences returns a set of symbol names these Instructions make -// bpf-to-bpf calls to. -func (insns Instructions) FunctionReferences() []string { - calls := make(map[string]struct{}) - for _, ins := range insns { - if ins.Constant != -1 { - // BPF-to-BPF calls have -1 constants. - continue - } - - if ins.Reference() == "" { - continue - } - - if !ins.IsFunctionReference() { - continue - } - - calls[ins.Reference()] = struct{}{} - } - - result := make([]string, 0, len(calls)) - for call := range calls { - result = append(result, call) - } - - sort.Strings(result) - return result -} - -// ReferenceOffsets returns the set of references and their offset in -// the instructions. -func (insns Instructions) ReferenceOffsets() map[string][]int { - offsets := make(map[string][]int) - - for i, ins := range insns { - if ins.Reference() == "" { - continue - } - - offsets[ins.Reference()] = append(offsets[ins.Reference()], i) - } - - return offsets -} - -// Format implements fmt.Formatter. -// -// You can control indentation of symbols by -// specifying a width. Setting a precision controls the indentation of -// instructions. -// The default character is a tab, which can be overridden by specifying -// the ' ' space flag. -func (insns Instructions) Format(f fmt.State, c rune) { - if c != 's' && c != 'v' { - fmt.Fprintf(f, "{UNKNOWN FORMAT '%c'}", c) - return - } - - // Precision is better in this case, because it allows - // specifying 0 padding easily. - padding, ok := f.Precision() - if !ok { - padding = 1 - } - - indent := strings.Repeat("\t", padding) - if f.Flag(' ') { - indent = strings.Repeat(" ", padding) - } - - symPadding, ok := f.Width() - if !ok { - symPadding = padding - 1 - } - if symPadding < 0 { - symPadding = 0 - } - - symIndent := strings.Repeat("\t", symPadding) - if f.Flag(' ') { - symIndent = strings.Repeat(" ", symPadding) - } - - // Guess how many digits we need at most, by assuming that all instructions - // are double wide. - highestOffset := len(insns) * 2 - offsetWidth := int(math.Ceil(math.Log10(float64(highestOffset)))) - - iter := insns.Iterate() - for iter.Next() { - if iter.Ins.Symbol() != "" { - fmt.Fprintf(f, "%s%s:\n", symIndent, iter.Ins.Symbol()) - } - if src := iter.Ins.Source(); src != nil { - line := strings.TrimSpace(src.String()) - if line != "" { - fmt.Fprintf(f, "%s%*s; %s\n", indent, offsetWidth, " ", line) - } - } - fmt.Fprintf(f, "%s%*d: %v\n", indent, offsetWidth, iter.Offset, iter.Ins) - } -} - -// Marshal encodes a BPF program into the kernel format. -// -// insns may be modified if there are unresolved jumps or bpf2bpf calls. -// -// Returns ErrUnsatisfiedProgramReference if there is a Reference Instruction -// without a matching Symbol Instruction within insns. -func (insns Instructions) Marshal(w io.Writer, bo binary.ByteOrder) error { - if err := insns.encodeFunctionReferences(); err != nil { - return err - } - - if err := insns.encodeMapPointers(); err != nil { - return err - } - - for i, ins := range insns { - if _, err := ins.Marshal(w, bo); err != nil { - return fmt.Errorf("instruction %d: %w", i, err) - } - } - return nil -} - -// Tag calculates the kernel tag for a series of instructions. -// -// It mirrors bpf_prog_calc_tag in the kernel and so can be compared -// to ProgramInfo.Tag to figure out whether a loaded program matches -// certain instructions. -func (insns Instructions) Tag(bo binary.ByteOrder) (string, error) { - h := sha1.New() - for i, ins := range insns { - if ins.IsLoadFromMap() { - ins.Constant = 0 - } - _, err := ins.Marshal(h, bo) - if err != nil { - return "", fmt.Errorf("instruction %d: %w", i, err) - } - } - return hex.EncodeToString(h.Sum(nil)[:unix.BPF_TAG_SIZE]), nil -} - -// encodeFunctionReferences populates the Offset (or Constant, depending on -// the instruction type) field of instructions with a Reference field to point -// to the offset of the corresponding instruction with a matching Symbol field. -// -// Only Reference Instructions that are either jumps or BPF function references -// (calls or function pointer loads) are populated. -// -// Returns ErrUnsatisfiedProgramReference if there is a Reference Instruction -// without at least one corresponding Symbol Instruction within insns. -func (insns Instructions) encodeFunctionReferences() error { - // Index the offsets of instructions tagged as a symbol. - symbolOffsets := make(map[string]RawInstructionOffset) - iter := insns.Iterate() - for iter.Next() { - ins := iter.Ins - - if ins.Symbol() == "" { - continue - } - - if _, ok := symbolOffsets[ins.Symbol()]; ok { - return fmt.Errorf("duplicate symbol %s", ins.Symbol()) - } - - symbolOffsets[ins.Symbol()] = iter.Offset - } - - // Find all instructions tagged as references to other symbols. - // Depending on the instruction type, populate their constant or offset - // fields to point to the symbol they refer to within the insn stream. - iter = insns.Iterate() - for iter.Next() { - i := iter.Index - offset := iter.Offset - ins := iter.Ins - - if ins.Reference() == "" { - continue - } - - switch { - case ins.IsFunctionReference() && ins.Constant == -1: - symOffset, ok := symbolOffsets[ins.Reference()] - if !ok { - return fmt.Errorf("%s at insn %d: symbol %q: %w", ins.OpCode, i, ins.Reference(), ErrUnsatisfiedProgramReference) - } - - ins.Constant = int64(symOffset - offset - 1) - - case ins.OpCode.Class().IsJump() && ins.Offset == -1: - symOffset, ok := symbolOffsets[ins.Reference()] - if !ok { - return fmt.Errorf("%s at insn %d: symbol %q: %w", ins.OpCode, i, ins.Reference(), ErrUnsatisfiedProgramReference) - } - - ins.Offset = int16(symOffset - offset - 1) - } - } - - return nil -} - -// encodeMapPointers finds all Map Instructions and encodes their FDs -// into their Constant fields. -func (insns Instructions) encodeMapPointers() error { - iter := insns.Iterate() - for iter.Next() { - ins := iter.Ins - - if !ins.IsLoadFromMap() { - continue - } - - m := ins.Map() - if m == nil { - continue - } - - fd := m.FD() - if fd < 0 { - return fmt.Errorf("map %s: %w", m, sys.ErrClosedFd) - } - - ins.encodeMapFD(m.FD()) - } - - return nil -} - -// Iterate allows iterating a BPF program while keeping track of -// various offsets. -// -// Modifying the instruction slice will lead to undefined behaviour. -func (insns Instructions) Iterate() *InstructionIterator { - return &InstructionIterator{insns: insns} -} - -// InstructionIterator iterates over a BPF program. -type InstructionIterator struct { - insns Instructions - // The instruction in question. - Ins *Instruction - // The index of the instruction in the original instruction slice. - Index int - // The offset of the instruction in raw BPF instructions. This accounts - // for double-wide instructions. - Offset RawInstructionOffset -} - -// Next returns true as long as there are any instructions remaining. -func (iter *InstructionIterator) Next() bool { - if len(iter.insns) == 0 { - return false - } - - if iter.Ins != nil { - iter.Index++ - iter.Offset += RawInstructionOffset(iter.Ins.OpCode.rawInstructions()) - } - iter.Ins = &iter.insns[0] - iter.insns = iter.insns[1:] - return true -} - -type bpfRegisters uint8 - -func newBPFRegisters(dst, src Register, bo binary.ByteOrder) (bpfRegisters, error) { - switch bo { - case binary.LittleEndian: - return bpfRegisters((src << 4) | (dst & 0xF)), nil - case binary.BigEndian: - return bpfRegisters((dst << 4) | (src & 0xF)), nil - default: - return 0, fmt.Errorf("unrecognized ByteOrder %T", bo) - } -} - -// IsUnreferencedSymbol returns true if err was caused by -// an unreferenced symbol. -// -// Deprecated: use errors.Is(err, asm.ErrUnreferencedSymbol). -func IsUnreferencedSymbol(err error) bool { - return errors.Is(err, ErrUnreferencedSymbol) -} diff --git a/vendor/github.com/cilium/ebpf/asm/jump.go b/vendor/github.com/cilium/ebpf/asm/jump.go deleted file mode 100644 index e31e42cac..000000000 --- a/vendor/github.com/cilium/ebpf/asm/jump.go +++ /dev/null @@ -1,127 +0,0 @@ -package asm - -//go:generate stringer -output jump_string.go -type=JumpOp - -// JumpOp affect control flow. -// -// msb lsb -// +----+-+---+ -// |OP |s|cls| -// +----+-+---+ -type JumpOp uint8 - -const jumpMask OpCode = aluMask - -const ( - // InvalidJumpOp is returned by getters when invoked - // on non branch OpCodes - InvalidJumpOp JumpOp = 0xff - // Ja jumps by offset unconditionally - Ja JumpOp = 0x00 - // JEq jumps by offset if r == imm - JEq JumpOp = 0x10 - // JGT jumps by offset if r > imm - JGT JumpOp = 0x20 - // JGE jumps by offset if r >= imm - JGE JumpOp = 0x30 - // JSet jumps by offset if r & imm - JSet JumpOp = 0x40 - // JNE jumps by offset if r != imm - JNE JumpOp = 0x50 - // JSGT jumps by offset if signed r > signed imm - JSGT JumpOp = 0x60 - // JSGE jumps by offset if signed r >= signed imm - JSGE JumpOp = 0x70 - // Call builtin or user defined function from imm - Call JumpOp = 0x80 - // Exit ends execution, with value in r0 - Exit JumpOp = 0x90 - // JLT jumps by offset if r < imm - JLT JumpOp = 0xa0 - // JLE jumps by offset if r <= imm - JLE JumpOp = 0xb0 - // JSLT jumps by offset if signed r < signed imm - JSLT JumpOp = 0xc0 - // JSLE jumps by offset if signed r <= signed imm - JSLE JumpOp = 0xd0 -) - -// Return emits an exit instruction. -// -// Requires a return value in R0. -func Return() Instruction { - return Instruction{ - OpCode: OpCode(JumpClass).SetJumpOp(Exit), - } -} - -// Op returns the OpCode for a given jump source. -func (op JumpOp) Op(source Source) OpCode { - return OpCode(JumpClass).SetJumpOp(op).SetSource(source) -} - -// Imm compares 64 bit dst to 64 bit value (sign extended), and adjusts PC by offset if the condition is fulfilled. -func (op JumpOp) Imm(dst Register, value int32, label string) Instruction { - return Instruction{ - OpCode: op.opCode(JumpClass, ImmSource), - Dst: dst, - Offset: -1, - Constant: int64(value), - }.WithReference(label) -} - -// Imm32 compares 32 bit dst to 32 bit value, and adjusts PC by offset if the condition is fulfilled. -// Requires kernel 5.1. -func (op JumpOp) Imm32(dst Register, value int32, label string) Instruction { - return Instruction{ - OpCode: op.opCode(Jump32Class, ImmSource), - Dst: dst, - Offset: -1, - Constant: int64(value), - }.WithReference(label) -} - -// Reg compares 64 bit dst to 64 bit src, and adjusts PC by offset if the condition is fulfilled. -func (op JumpOp) Reg(dst, src Register, label string) Instruction { - return Instruction{ - OpCode: op.opCode(JumpClass, RegSource), - Dst: dst, - Src: src, - Offset: -1, - }.WithReference(label) -} - -// Reg32 compares 32 bit dst to 32 bit src, and adjusts PC by offset if the condition is fulfilled. -// Requires kernel 5.1. -func (op JumpOp) Reg32(dst, src Register, label string) Instruction { - return Instruction{ - OpCode: op.opCode(Jump32Class, RegSource), - Dst: dst, - Src: src, - Offset: -1, - }.WithReference(label) -} - -func (op JumpOp) opCode(class Class, source Source) OpCode { - if op == Exit || op == Call || op == Ja { - return InvalidOpCode - } - - return OpCode(class).SetJumpOp(op).SetSource(source) -} - -// Label adjusts PC to the address of the label. -func (op JumpOp) Label(label string) Instruction { - if op == Call { - return Instruction{ - OpCode: OpCode(JumpClass).SetJumpOp(Call), - Src: PseudoCall, - Constant: -1, - }.WithReference(label) - } - - return Instruction{ - OpCode: OpCode(JumpClass).SetJumpOp(op), - Offset: -1, - }.WithReference(label) -} diff --git a/vendor/github.com/cilium/ebpf/asm/jump_string.go b/vendor/github.com/cilium/ebpf/asm/jump_string.go deleted file mode 100644 index 85a4aaffa..000000000 --- a/vendor/github.com/cilium/ebpf/asm/jump_string.go +++ /dev/null @@ -1,53 +0,0 @@ -// Code generated by "stringer -output jump_string.go -type=JumpOp"; DO NOT EDIT. - -package asm - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidJumpOp-255] - _ = x[Ja-0] - _ = x[JEq-16] - _ = x[JGT-32] - _ = x[JGE-48] - _ = x[JSet-64] - _ = x[JNE-80] - _ = x[JSGT-96] - _ = x[JSGE-112] - _ = x[Call-128] - _ = x[Exit-144] - _ = x[JLT-160] - _ = x[JLE-176] - _ = x[JSLT-192] - _ = x[JSLE-208] -} - -const _JumpOp_name = "JaJEqJGTJGEJSetJNEJSGTJSGECallExitJLTJLEJSLTJSLEInvalidJumpOp" - -var _JumpOp_map = map[JumpOp]string{ - 0: _JumpOp_name[0:2], - 16: _JumpOp_name[2:5], - 32: _JumpOp_name[5:8], - 48: _JumpOp_name[8:11], - 64: _JumpOp_name[11:15], - 80: _JumpOp_name[15:18], - 96: _JumpOp_name[18:22], - 112: _JumpOp_name[22:26], - 128: _JumpOp_name[26:30], - 144: _JumpOp_name[30:34], - 160: _JumpOp_name[34:37], - 176: _JumpOp_name[37:40], - 192: _JumpOp_name[40:44], - 208: _JumpOp_name[44:48], - 255: _JumpOp_name[48:61], -} - -func (i JumpOp) String() string { - if str, ok := _JumpOp_map[i]; ok { - return str - } - return "JumpOp(" + strconv.FormatInt(int64(i), 10) + ")" -} diff --git a/vendor/github.com/cilium/ebpf/asm/load_store.go b/vendor/github.com/cilium/ebpf/asm/load_store.go deleted file mode 100644 index 85ed286b0..000000000 --- a/vendor/github.com/cilium/ebpf/asm/load_store.go +++ /dev/null @@ -1,204 +0,0 @@ -package asm - -//go:generate stringer -output load_store_string.go -type=Mode,Size - -// Mode for load and store operations -// -// msb lsb -// +---+--+---+ -// |MDE|sz|cls| -// +---+--+---+ -type Mode uint8 - -const modeMask OpCode = 0xe0 - -const ( - // InvalidMode is returned by getters when invoked - // on non load / store OpCodes - InvalidMode Mode = 0xff - // ImmMode - immediate value - ImmMode Mode = 0x00 - // AbsMode - immediate value + offset - AbsMode Mode = 0x20 - // IndMode - indirect (imm+src) - IndMode Mode = 0x40 - // MemMode - load from memory - MemMode Mode = 0x60 - // XAddMode - add atomically across processors. - XAddMode Mode = 0xc0 -) - -// Size of load and store operations -// -// msb lsb -// +---+--+---+ -// |mde|SZ|cls| -// +---+--+---+ -type Size uint8 - -const sizeMask OpCode = 0x18 - -const ( - // InvalidSize is returned by getters when invoked - // on non load / store OpCodes - InvalidSize Size = 0xff - // DWord - double word; 64 bits - DWord Size = 0x18 - // Word - word; 32 bits - Word Size = 0x00 - // Half - half-word; 16 bits - Half Size = 0x08 - // Byte - byte; 8 bits - Byte Size = 0x10 -) - -// Sizeof returns the size in bytes. -func (s Size) Sizeof() int { - switch s { - case DWord: - return 8 - case Word: - return 4 - case Half: - return 2 - case Byte: - return 1 - default: - return -1 - } -} - -// LoadMemOp returns the OpCode to load a value of given size from memory. -func LoadMemOp(size Size) OpCode { - return OpCode(LdXClass).SetMode(MemMode).SetSize(size) -} - -// LoadMem emits `dst = *(size *)(src + offset)`. -func LoadMem(dst, src Register, offset int16, size Size) Instruction { - return Instruction{ - OpCode: LoadMemOp(size), - Dst: dst, - Src: src, - Offset: offset, - } -} - -// LoadImmOp returns the OpCode to load an immediate of given size. -// -// As of kernel 4.20, only DWord size is accepted. -func LoadImmOp(size Size) OpCode { - return OpCode(LdClass).SetMode(ImmMode).SetSize(size) -} - -// LoadImm emits `dst = (size)value`. -// -// As of kernel 4.20, only DWord size is accepted. -func LoadImm(dst Register, value int64, size Size) Instruction { - return Instruction{ - OpCode: LoadImmOp(size), - Dst: dst, - Constant: value, - } -} - -// LoadMapPtr stores a pointer to a map in dst. -func LoadMapPtr(dst Register, fd int) Instruction { - if fd < 0 { - return Instruction{OpCode: InvalidOpCode} - } - - return Instruction{ - OpCode: LoadImmOp(DWord), - Dst: dst, - Src: PseudoMapFD, - Constant: int64(uint32(fd)), - } -} - -// LoadMapValue stores a pointer to the value at a certain offset of a map. -func LoadMapValue(dst Register, fd int, offset uint32) Instruction { - if fd < 0 { - return Instruction{OpCode: InvalidOpCode} - } - - fdAndOffset := (uint64(offset) << 32) | uint64(uint32(fd)) - return Instruction{ - OpCode: LoadImmOp(DWord), - Dst: dst, - Src: PseudoMapValue, - Constant: int64(fdAndOffset), - } -} - -// LoadIndOp returns the OpCode for loading a value of given size from an sk_buff. -func LoadIndOp(size Size) OpCode { - return OpCode(LdClass).SetMode(IndMode).SetSize(size) -} - -// LoadInd emits `dst = ntoh(*(size *)(((sk_buff *)R6)->data + src + offset))`. -func LoadInd(dst, src Register, offset int32, size Size) Instruction { - return Instruction{ - OpCode: LoadIndOp(size), - Dst: dst, - Src: src, - Constant: int64(offset), - } -} - -// LoadAbsOp returns the OpCode for loading a value of given size from an sk_buff. -func LoadAbsOp(size Size) OpCode { - return OpCode(LdClass).SetMode(AbsMode).SetSize(size) -} - -// LoadAbs emits `r0 = ntoh(*(size *)(((sk_buff *)R6)->data + offset))`. -func LoadAbs(offset int32, size Size) Instruction { - return Instruction{ - OpCode: LoadAbsOp(size), - Dst: R0, - Constant: int64(offset), - } -} - -// StoreMemOp returns the OpCode for storing a register of given size in memory. -func StoreMemOp(size Size) OpCode { - return OpCode(StXClass).SetMode(MemMode).SetSize(size) -} - -// StoreMem emits `*(size *)(dst + offset) = src` -func StoreMem(dst Register, offset int16, src Register, size Size) Instruction { - return Instruction{ - OpCode: StoreMemOp(size), - Dst: dst, - Src: src, - Offset: offset, - } -} - -// StoreImmOp returns the OpCode for storing an immediate of given size in memory. -func StoreImmOp(size Size) OpCode { - return OpCode(StClass).SetMode(MemMode).SetSize(size) -} - -// StoreImm emits `*(size *)(dst + offset) = value`. -func StoreImm(dst Register, offset int16, value int64, size Size) Instruction { - return Instruction{ - OpCode: StoreImmOp(size), - Dst: dst, - Offset: offset, - Constant: value, - } -} - -// StoreXAddOp returns the OpCode to atomically add a register to a value in memory. -func StoreXAddOp(size Size) OpCode { - return OpCode(StXClass).SetMode(XAddMode).SetSize(size) -} - -// StoreXAdd atomically adds src to *dst. -func StoreXAdd(dst, src Register, size Size) Instruction { - return Instruction{ - OpCode: StoreXAddOp(size), - Dst: dst, - Src: src, - } -} diff --git a/vendor/github.com/cilium/ebpf/asm/load_store_string.go b/vendor/github.com/cilium/ebpf/asm/load_store_string.go deleted file mode 100644 index 76d29a075..000000000 --- a/vendor/github.com/cilium/ebpf/asm/load_store_string.go +++ /dev/null @@ -1,80 +0,0 @@ -// Code generated by "stringer -output load_store_string.go -type=Mode,Size"; DO NOT EDIT. - -package asm - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidMode-255] - _ = x[ImmMode-0] - _ = x[AbsMode-32] - _ = x[IndMode-64] - _ = x[MemMode-96] - _ = x[XAddMode-192] -} - -const ( - _Mode_name_0 = "ImmMode" - _Mode_name_1 = "AbsMode" - _Mode_name_2 = "IndMode" - _Mode_name_3 = "MemMode" - _Mode_name_4 = "XAddMode" - _Mode_name_5 = "InvalidMode" -) - -func (i Mode) String() string { - switch { - case i == 0: - return _Mode_name_0 - case i == 32: - return _Mode_name_1 - case i == 64: - return _Mode_name_2 - case i == 96: - return _Mode_name_3 - case i == 192: - return _Mode_name_4 - case i == 255: - return _Mode_name_5 - default: - return "Mode(" + strconv.FormatInt(int64(i), 10) + ")" - } -} -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[InvalidSize-255] - _ = x[DWord-24] - _ = x[Word-0] - _ = x[Half-8] - _ = x[Byte-16] -} - -const ( - _Size_name_0 = "Word" - _Size_name_1 = "Half" - _Size_name_2 = "Byte" - _Size_name_3 = "DWord" - _Size_name_4 = "InvalidSize" -) - -func (i Size) String() string { - switch { - case i == 0: - return _Size_name_0 - case i == 8: - return _Size_name_1 - case i == 16: - return _Size_name_2 - case i == 24: - return _Size_name_3 - case i == 255: - return _Size_name_4 - default: - return "Size(" + strconv.FormatInt(int64(i), 10) + ")" - } -} diff --git a/vendor/github.com/cilium/ebpf/asm/metadata.go b/vendor/github.com/cilium/ebpf/asm/metadata.go deleted file mode 100644 index dd368a936..000000000 --- a/vendor/github.com/cilium/ebpf/asm/metadata.go +++ /dev/null @@ -1,80 +0,0 @@ -package asm - -// Metadata contains metadata about an instruction. -type Metadata struct { - head *metaElement -} - -type metaElement struct { - next *metaElement - key, value interface{} -} - -// Find the element containing key. -// -// Returns nil if there is no such element. -func (m *Metadata) find(key interface{}) *metaElement { - for e := m.head; e != nil; e = e.next { - if e.key == key { - return e - } - } - return nil -} - -// Remove an element from the linked list. -// -// Copies as many elements of the list as necessary to remove r, but doesn't -// perform a full copy. -func (m *Metadata) remove(r *metaElement) { - current := &m.head - for e := m.head; e != nil; e = e.next { - if e == r { - // We've found the element we want to remove. - *current = e.next - - // No need to copy the tail. - return - } - - // There is another element in front of the one we want to remove. - // We have to copy it to be able to change metaElement.next. - cpy := &metaElement{key: e.key, value: e.value} - *current = cpy - current = &cpy.next - } -} - -// Set a key to a value. -// -// If value is nil, the key is removed. Avoids modifying old metadata by -// copying if necessary. -func (m *Metadata) Set(key, value interface{}) { - if e := m.find(key); e != nil { - if e.value == value { - // Key is present and the value is the same. Nothing to do. - return - } - - // Key is present with a different value. Create a copy of the list - // which doesn't have the element in it. - m.remove(e) - } - - // m.head is now a linked list that doesn't contain key. - if value == nil { - return - } - - m.head = &metaElement{key: key, value: value, next: m.head} -} - -// Get the value of a key. -// -// Returns nil if no value with the given key is present. -func (m *Metadata) Get(key interface{}) interface{} { - if e := m.find(key); e != nil { - return e.value - } - return nil -} diff --git a/vendor/github.com/cilium/ebpf/asm/opcode.go b/vendor/github.com/cilium/ebpf/asm/opcode.go deleted file mode 100644 index b11917e18..000000000 --- a/vendor/github.com/cilium/ebpf/asm/opcode.go +++ /dev/null @@ -1,271 +0,0 @@ -package asm - -import ( - "fmt" - "strings" -) - -//go:generate stringer -output opcode_string.go -type=Class - -// Class of operations -// -// msb lsb -// +---+--+---+ -// | ?? |CLS| -// +---+--+---+ -type Class uint8 - -const classMask OpCode = 0x07 - -const ( - // LdClass loads immediate values into registers. - // Also used for non-standard load operations from cBPF. - LdClass Class = 0x00 - // LdXClass loads memory into registers. - LdXClass Class = 0x01 - // StClass stores immediate values to memory. - StClass Class = 0x02 - // StXClass stores registers to memory. - StXClass Class = 0x03 - // ALUClass describes arithmetic operators. - ALUClass Class = 0x04 - // JumpClass describes jump operators. - JumpClass Class = 0x05 - // Jump32Class describes jump operators with 32-bit comparisons. - // Requires kernel 5.1. - Jump32Class Class = 0x06 - // ALU64Class describes arithmetic operators in 64-bit mode. - ALU64Class Class = 0x07 -) - -// IsLoad checks if this is either LdClass or LdXClass. -func (cls Class) IsLoad() bool { - return cls == LdClass || cls == LdXClass -} - -// IsStore checks if this is either StClass or StXClass. -func (cls Class) IsStore() bool { - return cls == StClass || cls == StXClass -} - -func (cls Class) isLoadOrStore() bool { - return cls.IsLoad() || cls.IsStore() -} - -// IsALU checks if this is either ALUClass or ALU64Class. -func (cls Class) IsALU() bool { - return cls == ALUClass || cls == ALU64Class -} - -// IsJump checks if this is either JumpClass or Jump32Class. -func (cls Class) IsJump() bool { - return cls == JumpClass || cls == Jump32Class -} - -func (cls Class) isJumpOrALU() bool { - return cls.IsJump() || cls.IsALU() -} - -// OpCode is a packed eBPF opcode. -// -// Its encoding is defined by a Class value: -// -// msb lsb -// +----+-+---+ -// | ???? |CLS| -// +----+-+---+ -type OpCode uint8 - -// InvalidOpCode is returned by setters on OpCode -const InvalidOpCode OpCode = 0xff - -// rawInstructions returns the number of BPF instructions required -// to encode this opcode. -func (op OpCode) rawInstructions() int { - if op.IsDWordLoad() { - return 2 - } - return 1 -} - -func (op OpCode) IsDWordLoad() bool { - return op == LoadImmOp(DWord) -} - -// Class returns the class of operation. -func (op OpCode) Class() Class { - return Class(op & classMask) -} - -// Mode returns the mode for load and store operations. -func (op OpCode) Mode() Mode { - if !op.Class().isLoadOrStore() { - return InvalidMode - } - return Mode(op & modeMask) -} - -// Size returns the size for load and store operations. -func (op OpCode) Size() Size { - if !op.Class().isLoadOrStore() { - return InvalidSize - } - return Size(op & sizeMask) -} - -// Source returns the source for branch and ALU operations. -func (op OpCode) Source() Source { - if !op.Class().isJumpOrALU() || op.ALUOp() == Swap { - return InvalidSource - } - return Source(op & sourceMask) -} - -// ALUOp returns the ALUOp. -func (op OpCode) ALUOp() ALUOp { - if !op.Class().IsALU() { - return InvalidALUOp - } - return ALUOp(op & aluMask) -} - -// Endianness returns the Endianness for a byte swap instruction. -func (op OpCode) Endianness() Endianness { - if op.ALUOp() != Swap { - return InvalidEndian - } - return Endianness(op & endianMask) -} - -// JumpOp returns the JumpOp. -// Returns InvalidJumpOp if it doesn't encode a jump. -func (op OpCode) JumpOp() JumpOp { - if !op.Class().IsJump() { - return InvalidJumpOp - } - - jumpOp := JumpOp(op & jumpMask) - - // Some JumpOps are only supported by JumpClass, not Jump32Class. - if op.Class() == Jump32Class && (jumpOp == Exit || jumpOp == Call || jumpOp == Ja) { - return InvalidJumpOp - } - - return jumpOp -} - -// SetMode sets the mode on load and store operations. -// -// Returns InvalidOpCode if op is of the wrong class. -func (op OpCode) SetMode(mode Mode) OpCode { - if !op.Class().isLoadOrStore() || !valid(OpCode(mode), modeMask) { - return InvalidOpCode - } - return (op & ^modeMask) | OpCode(mode) -} - -// SetSize sets the size on load and store operations. -// -// Returns InvalidOpCode if op is of the wrong class. -func (op OpCode) SetSize(size Size) OpCode { - if !op.Class().isLoadOrStore() || !valid(OpCode(size), sizeMask) { - return InvalidOpCode - } - return (op & ^sizeMask) | OpCode(size) -} - -// SetSource sets the source on jump and ALU operations. -// -// Returns InvalidOpCode if op is of the wrong class. -func (op OpCode) SetSource(source Source) OpCode { - if !op.Class().isJumpOrALU() || !valid(OpCode(source), sourceMask) { - return InvalidOpCode - } - return (op & ^sourceMask) | OpCode(source) -} - -// SetALUOp sets the ALUOp on ALU operations. -// -// Returns InvalidOpCode if op is of the wrong class. -func (op OpCode) SetALUOp(alu ALUOp) OpCode { - if !op.Class().IsALU() || !valid(OpCode(alu), aluMask) { - return InvalidOpCode - } - return (op & ^aluMask) | OpCode(alu) -} - -// SetJumpOp sets the JumpOp on jump operations. -// -// Returns InvalidOpCode if op is of the wrong class. -func (op OpCode) SetJumpOp(jump JumpOp) OpCode { - if !op.Class().IsJump() || !valid(OpCode(jump), jumpMask) { - return InvalidOpCode - } - - newOp := (op & ^jumpMask) | OpCode(jump) - - // Check newOp is legal. - if newOp.JumpOp() == InvalidJumpOp { - return InvalidOpCode - } - - return newOp -} - -func (op OpCode) String() string { - var f strings.Builder - - switch class := op.Class(); { - case class.isLoadOrStore(): - f.WriteString(strings.TrimSuffix(class.String(), "Class")) - - mode := op.Mode() - f.WriteString(strings.TrimSuffix(mode.String(), "Mode")) - - switch op.Size() { - case DWord: - f.WriteString("DW") - case Word: - f.WriteString("W") - case Half: - f.WriteString("H") - case Byte: - f.WriteString("B") - } - - case class.IsALU(): - f.WriteString(op.ALUOp().String()) - - if op.ALUOp() == Swap { - // Width for Endian is controlled by Constant - f.WriteString(op.Endianness().String()) - } else { - if class == ALUClass { - f.WriteString("32") - } - - f.WriteString(strings.TrimSuffix(op.Source().String(), "Source")) - } - - case class.IsJump(): - f.WriteString(op.JumpOp().String()) - - if class == Jump32Class { - f.WriteString("32") - } - - if jop := op.JumpOp(); jop != Exit && jop != Call { - f.WriteString(strings.TrimSuffix(op.Source().String(), "Source")) - } - - default: - fmt.Fprintf(&f, "OpCode(%#x)", uint8(op)) - } - - return f.String() -} - -// valid returns true if all bits in value are covered by mask. -func valid(value, mask OpCode) bool { - return value & ^mask == 0 -} diff --git a/vendor/github.com/cilium/ebpf/asm/opcode_string.go b/vendor/github.com/cilium/ebpf/asm/opcode_string.go deleted file mode 100644 index 58bc3e7e7..000000000 --- a/vendor/github.com/cilium/ebpf/asm/opcode_string.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by "stringer -output opcode_string.go -type=Class"; DO NOT EDIT. - -package asm - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[LdClass-0] - _ = x[LdXClass-1] - _ = x[StClass-2] - _ = x[StXClass-3] - _ = x[ALUClass-4] - _ = x[JumpClass-5] - _ = x[Jump32Class-6] - _ = x[ALU64Class-7] -} - -const _Class_name = "LdClassLdXClassStClassStXClassALUClassJumpClassJump32ClassALU64Class" - -var _Class_index = [...]uint8{0, 7, 15, 22, 30, 38, 47, 58, 68} - -func (i Class) String() string { - if i >= Class(len(_Class_index)-1) { - return "Class(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _Class_name[_Class_index[i]:_Class_index[i+1]] -} diff --git a/vendor/github.com/cilium/ebpf/asm/register.go b/vendor/github.com/cilium/ebpf/asm/register.go deleted file mode 100644 index dd5d44f1c..000000000 --- a/vendor/github.com/cilium/ebpf/asm/register.go +++ /dev/null @@ -1,50 +0,0 @@ -package asm - -import ( - "fmt" -) - -// Register is the source or destination of most operations. -type Register uint8 - -// R0 contains return values. -const R0 Register = 0 - -// Registers for function arguments. -const ( - R1 Register = R0 + 1 + iota - R2 - R3 - R4 - R5 -) - -// Callee saved registers preserved by function calls. -const ( - R6 Register = R5 + 1 + iota - R7 - R8 - R9 -) - -// Read-only frame pointer to access stack. -const ( - R10 Register = R9 + 1 - RFP = R10 -) - -// Pseudo registers used by 64bit loads and jumps -const ( - PseudoMapFD = R1 // BPF_PSEUDO_MAP_FD - PseudoMapValue = R2 // BPF_PSEUDO_MAP_VALUE - PseudoCall = R1 // BPF_PSEUDO_CALL - PseudoFunc = R4 // BPF_PSEUDO_FUNC -) - -func (r Register) String() string { - v := uint8(r) - if v == 10 { - return "rfp" - } - return fmt.Sprintf("r%d", v) -} |