Add line break to /proc/net files

Some files were missing the last line break.

PiperOrigin-RevId: 290808898

2 files changed, 14 insertions, 14 deletions

diff --git a/pkg/sentry/fs/proc/net.go b/pkg/sentry/fs/proc/net.go
index 3f17e98ea..bad445f3f 100644
--- a/pkg/sentry/fs/proc/net.go
+++ b/pkg/sentry/fs/proc/net.go
@@ -52,17 +52,17 @@ func (p *proc) newNetDir(ctx context.Context, k *kernel.Kernel, msrc *fs.MountSo
 			// implemented in netstack, if the file contains a
 			// header the stub is just the header otherwise it is
 			// an empty file.
-			"arp": newStaticProcInode(ctx, msrc, []byte("IP address       HW type     Flags       HW address            Mask     Device")),
+			"arp": newStaticProcInode(ctx, msrc, []byte("IP address       HW type     Flags       HW address            Mask     Device\n")),
 
-			"netlink":   newStaticProcInode(ctx, msrc, []byte("sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode")),
-			"netstat":   newStaticProcInode(ctx, msrc, []byte("TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFailed EmbryonicRsts PruneCalled RcvPruned OfoPruned OutOfWindowIcmps LockDroppedIcmps ArpFilter TW TWRecycled TWKilled PAWSPassive PAWSActive PAWSEstab DelayedACKs DelayedACKLocked DelayedACKLost ListenOverflows ListenDrops TCPPrequeued TCPDirectCopyFromBacklog TCPDirectCopyFromPrequeue TCPPrequeueDropped TCPHPHits TCPHPHitsToUser TCPPureAcks TCPHPAcks TCPRenoRecovery TCPSackRecovery TCPSACKReneging TCPFACKReorder TCPSACKReorder TCPRenoReorder TCPTSReorder TCPFullUndo TCPPartialUndo TCPDSACKUndo TCPLossUndo TCPLostRetransmit TCPRenoFailures TCPSackFailures TCPLossFailures TCPFastRetrans TCPForwardRetrans TCPSlowStartRetrans TCPTimeouts TCPLossProbes TCPLossProbeRecovery TCPRenoRecoveryFail TCPSackRecoveryFail TCPSchedulerFailed TCPRcvCollapsed TCPDSACKOldSent TCPDSACKOfoSent TCPDSACKRecv TCPDSACKOfoRecv TCPAbortOnData TCPAbortOnClose TCPAbortOnMemory TCPAbortOnTimeout TCPAbortOnLinger TCPAbortFailed TCPMemoryPressures TCPSACKDiscard TCPDSACKIgnoredOld TCPDSACKIgnoredNoUndo TCPSpuriousRTOs TCPMD5NotFound TCPMD5Unexpected TCPMD5Failure TCPSackShifted TCPSackMerged TCPSackShiftFallback TCPBacklogDrop TCPMinTTLDrop TCPDeferAcceptDrop IPReversePathFilter TCPTimeWaitOverflow TCPReqQFullDoCookies TCPReqQFullDrop TCPRetransFail TCPRcvCoalesce TCPOFOQueue TCPOFODrop TCPOFOMerge TCPChallengeACK TCPSYNChallenge TCPFastOpenActive TCPFastOpenActiveFail TCPFastOpenPassive TCPFastOpenPassiveFail TCPFastOpenListenOverflow TCPFastOpenCookieReqd TCPSpuriousRtxHostQueues BusyPollRxPackets TCPAutoCorking TCPFromZeroWindowAdv TCPToZeroWindowAdv TCPWantZeroWindowAdv TCPSynRetrans TCPOrigDataSent TCPHystartTrainDetect TCPHystartTrainCwnd TCPHystartDelayDetect TCPHystartDelayCwnd TCPACKSkippedSynRecv TCPACKSkippedPAWS TCPACKSkippedSeq TCPACKSkippedFinWait2 TCPACKSkippedTimeWait TCPACKSkippedChallenge TCPWinProbe TCPKeepAlive TCPMTUPFail TCPMTUPSuccess")),
-			"packet":    newStaticProcInode(ctx, msrc, []byte("sk       RefCnt Type Proto  Iface R Rmem   User   Inode")),
-			"protocols": newStaticProcInode(ctx, msrc, []byte("protocol  size sockets  memory press maxhdr  slab module     cl co di ac io in de sh ss gs se re sp bi br ha uh gp em")),
+			"netlink":   newStaticProcInode(ctx, msrc, []byte("sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode\n")),
+			"netstat":   newStaticProcInode(ctx, msrc, []byte("TcpExt: SyncookiesSent SyncookiesRecv SyncookiesFailed EmbryonicRsts PruneCalled RcvPruned OfoPruned OutOfWindowIcmps LockDroppedIcmps ArpFilter TW TWRecycled TWKilled PAWSPassive PAWSActive PAWSEstab DelayedACKs DelayedACKLocked DelayedACKLost ListenOverflows ListenDrops TCPPrequeued TCPDirectCopyFromBacklog TCPDirectCopyFromPrequeue TCPPrequeueDropped TCPHPHits TCPHPHitsToUser TCPPureAcks TCPHPAcks TCPRenoRecovery TCPSackRecovery TCPSACKReneging TCPFACKReorder TCPSACKReorder TCPRenoReorder TCPTSReorder TCPFullUndo TCPPartialUndo TCPDSACKUndo TCPLossUndo TCPLostRetransmit TCPRenoFailures TCPSackFailures TCPLossFailures TCPFastRetrans TCPForwardRetrans TCPSlowStartRetrans TCPTimeouts TCPLossProbes TCPLossProbeRecovery TCPRenoRecoveryFail TCPSackRecoveryFail TCPSchedulerFailed TCPRcvCollapsed TCPDSACKOldSent TCPDSACKOfoSent TCPDSACKRecv TCPDSACKOfoRecv TCPAbortOnData TCPAbortOnClose TCPAbortOnMemory TCPAbortOnTimeout TCPAbortOnLinger TCPAbortFailed TCPMemoryPressures TCPSACKDiscard TCPDSACKIgnoredOld TCPDSACKIgnoredNoUndo TCPSpuriousRTOs TCPMD5NotFound TCPMD5Unexpected TCPMD5Failure TCPSackShifted TCPSackMerged TCPSackShiftFallback TCPBacklogDrop TCPMinTTLDrop TCPDeferAcceptDrop IPReversePathFilter TCPTimeWaitOverflow TCPReqQFullDoCookies TCPReqQFullDrop TCPRetransFail TCPRcvCoalesce TCPOFOQueue TCPOFODrop TCPOFOMerge TCPChallengeACK TCPSYNChallenge TCPFastOpenActive TCPFastOpenActiveFail TCPFastOpenPassive TCPFastOpenPassiveFail TCPFastOpenListenOverflow TCPFastOpenCookieReqd TCPSpuriousRtxHostQueues BusyPollRxPackets TCPAutoCorking TCPFromZeroWindowAdv TCPToZeroWindowAdv TCPWantZeroWindowAdv TCPSynRetrans TCPOrigDataSent TCPHystartTrainDetect TCPHystartTrainCwnd TCPHystartDelayDetect TCPHystartDelayCwnd TCPACKSkippedSynRecv TCPACKSkippedPAWS TCPACKSkippedSeq TCPACKSkippedFinWait2 TCPACKSkippedTimeWait TCPACKSkippedChallenge TCPWinProbe TCPKeepAlive TCPMTUPFail TCPMTUPSuccess\n")),
+			"packet":    newStaticProcInode(ctx, msrc, []byte("sk       RefCnt Type Proto  Iface R Rmem   User   Inode\n")),
+			"protocols": newStaticProcInode(ctx, msrc, []byte("protocol  size sockets  memory press maxhdr  slab module     cl co di ac io in de sh ss gs se re sp bi br ha uh gp em\n")),
 			// Linux sets psched values to: nsec per usec, psched
 			// tick in ns, 1000000, high res timer ticks per sec
 			// (ClockGetres returns 1ns resolution).
 			"psched": newStaticProcInode(ctx, msrc, []byte(fmt.Sprintf("%08x %08x %08x %08x\n", uint64(time.Microsecond/time.Nanosecond), 64, 1000000, uint64(time.Second/time.Nanosecond)))),
-			"ptype":  newStaticProcInode(ctx, msrc, []byte("Type Device      Function")),
+			"ptype":  newStaticProcInode(ctx, msrc, []byte("Type Device      Function\n")),
 			"route":  seqfile.NewSeqFileInode(ctx, &netRoute{s: s}, msrc),
 			"tcp":    seqfile.NewSeqFileInode(ctx, &netTCP{k: k}, msrc),
 			"udp":    seqfile.NewSeqFileInode(ctx, &netUDP{k: k}, msrc),
@@ -73,7 +73,7 @@ func (p *proc) newNetDir(ctx context.Context, k *kernel.Kernel, msrc *fs.MountSo
 			contents["if_inet6"] = seqfile.NewSeqFileInode(ctx, &ifinet6{s: s}, msrc)
 			contents["ipv6_route"] = newStaticProcInode(ctx, msrc, []byte(""))
 			contents["tcp6"] = seqfile.NewSeqFileInode(ctx, &netTCP6{k: k}, msrc)
-			contents["udp6"] = newStaticProcInode(ctx, msrc, []byte("  sl  local_address                         remote_address                        st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode"))
+			contents["udp6"] = newStaticProcInode(ctx, msrc, []byte("  sl  local_address                         remote_address                        st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode\n"))
 		}
 	}
 	d := ramfs.NewDir(ctx, contents, fs.RootOwner, fs.FilePermsFromMode(0555))
diff --git a/pkg/sentry/fsimpl/proc/tasks_net.go b/pkg/sentry/fsimpl/proc/tasks_net.go
index 3dbf3ba41..4aaf23e97 100644
--- a/pkg/sentry/fsimpl/proc/tasks_net.go
+++ b/pkg/sentry/fsimpl/proc/tasks_net.go
@@ -41,12 +41,12 @@ func newNetDir(root *auth.Credentials, inoGen InoGenerator, k *kernel.Kernel) *k
 	var contents map[string]*kernfs.Dentry
 	if stack := k.NetworkStack(); stack != nil {
 		const (
-			arp       = "IP address       HW type     Flags       HW address            Mask     Device"
-			netlink   = "sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode"
-			packet    = "sk       RefCnt Type Proto  Iface R Rmem   User   Inode"
-			protocols = "protocol  size sockets  memory press maxhdr  slab module     cl co di ac io in de sh ss gs se re sp bi br ha uh gp em"
-			ptype     = "Type Device      Function"
-			upd6      = "  sl  local_address                         remote_address                        st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode"
+			arp       = "IP address       HW type     Flags       HW address            Mask     Device\n"
+			netlink   = "sk       Eth Pid    Groups   Rmem     Wmem     Dump     Locks     Drops     Inode\n"
+			packet    = "sk       RefCnt Type Proto  Iface R Rmem   User   Inode\n"
+			protocols = "protocol  size sockets  memory press maxhdr  slab module     cl co di ac io in de sh ss gs se re sp bi br ha uh gp em\n"
+			ptype     = "Type Device      Function\n"
+			upd6      = "  sl  local_address                         remote_address                        st tx_queue rx_queue tr tm->when retrnsmt   uid  timeout inode\n"
 		)
 		psched := fmt.Sprintf("%08x %08x %08x %08x\n", uint64(time.Microsecond/time.Nanosecond), 64, 1000000, uint64(time.Second/time.Nanosecond))
 
@@ -779,6 +779,6 @@ func (d *netStatData) Generate(ctx context.Context, buf *bytes.Buffer) error {
 		"TCPHystartTrainCwnd TCPHystartDelayDetect TCPHystartDelayCwnd " +
 		"TCPACKSkippedSynRecv TCPACKSkippedPAWS TCPACKSkippedSeq " +
 		"TCPACKSkippedFinWait2 TCPACKSkippedTimeWait TCPACKSkippedChallenge " +
-		"TCPWinProbe TCPKeepAlive TCPMTUPFail TCPMTUPSuccess")
+		"TCPWinProbe TCPKeepAlive TCPMTUPFail TCPMTUPSuccess\n")
 	return nil
 }