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Harden uspfilter conntrack and share half-close-correct TCP relay

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This commit is contained in:
Viktor Liu
2026-04-21 09:25:08 +02:00
parent 3098f48b25
commit ffac18409e
26 changed files with 1543 additions and 488 deletions
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5
client/ssh/proxy/proxy.go
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@@ -23,6 +23,7 @@ import (
"github.com/netbirdio/netbird/client/proto"
nbssh "github.com/netbirdio/netbird/client/ssh"
"github.com/netbirdio/netbird/client/ssh/detection"
"github.com/netbirdio/netbird/util/netrelay"
"github.com/netbirdio/netbird/version"
)
@@ -352,7 +353,7 @@ func (p *SSHProxy) directTCPIPHandler(_ *ssh.Server, _ *cryptossh.ServerConn, ne
}
go cryptossh.DiscardRequests(clientReqs)
nbssh.BidirectionalCopyWithContext(log.NewEntry(log.StandardLogger()), sshCtx, clientChan, backendChan)
netrelay.Relay(sshCtx, clientChan, backendChan, netrelay.Options{Logger: log.NewEntry(log.StandardLogger())})
}
func (p *SSHProxy) sftpSubsystemHandler(s ssh.Session, jwtToken string) {
@@ -591,7 +592,7 @@ func (p *SSHProxy) handleForwardedChannel(sshCtx ssh.Context, sshConn *cryptossh
}
go cryptossh.DiscardRequests(clientReqs)
nbssh.BidirectionalCopyWithContext(log.NewEntry(log.StandardLogger()), sshCtx, clientChan, backendChan)
netrelay.Relay(sshCtx, clientChan, backendChan, netrelay.Options{Logger: log.NewEntry(log.StandardLogger())})
}
func (p *SSHProxy) dialBackend(ctx context.Context, addr, user, jwtToken string) (*cryptossh.Client, error) {