Build Linux 5.10 LTS for Phicomm N1
Recently I built Linux 5.10 LTS for my N1 box. Below are the patches I needed during the building process. TEXT_OFFSET Due to some quirks in U-boot shipped with N1,Continue reading
Patch for blocking Thunder in transmission 3.00
I wrote a blog about blocking Thunder in tranmission-daemon 2.94. The patch does not apply cleanly on Transmission 3.00, so I update it here:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | --- a/libtransmission/peer-mgr.c 2021-08-31 03:10:20.435836776 +0800 +++ b/libtransmission/peer-mgr.c 2021-08-31 03:14:31.268153266 +0800 @@ -2007,6 +2007,21 @@ tr_peerMsgsUpdateActive(msgs, TR_DOWN); } +static bool isUserAgentBad(const char* ua) +{ + static const char* blacklist[] = {"Thunder", "Xunlei"}; + int i; + + for (i = 0; i != sizeof(blacklist) / sizeof(blacklist[0]); ++i) { + // Performs bad, honestly. + if (!strncmp(blacklist[i], ua, strlen(blacklist[i]))) { + return true; + } + } + return false; +} + + /* FIXME: this is kind of a mess. */ static bool myHandshakeDoneCB(tr_handshake* handshake, tr_peerIo* io, bool readAnythingFromPeer, bool isConnected, uint8_t const* peer_id, void* vmanager) @@ -2100,21 +2115,29 @@ tr_quark client; tr_peerIo* io; char buf[128]; + const char* ua = ""; if (peer_id != NULL) { - client = tr_quark_new(tr_clientForId(buf, sizeof(buf), peer_id), TR_BAD_SIZE); + client = tr_quark_new((ua = tr_clientForId(buf, sizeof(buf), peer_id)), TR_BAD_SIZE); } else { client = TR_KEY_NONE; } - io = tr_handshakeStealIO(handshake); /* this steals its refcount too, which is balanced by our unref in peerDelete() */ - tr_peerIoSetParent(io, &s->tor->bandwidth); - createBitTorrentPeer(s->tor, io, atom, client); + if (!isUserAgentBad(ua)) + { + io = tr_handshakeStealIO(handshake); /* this steals its refcount too, which is balanced by our unref in peerDelete() */ + tr_peerIoSetParent(io, &s->tor->bandwidth); + createBitTorrentPeer(s->tor, io, atom, client); - success = true; + success = true; + } + else + { + tr_logAddDebug("Bad user agent \"%s\" (peer %s) tried to connect to us", ua, tr_atomAddrStr(atom)); + } } } } |
The rest instructions are theContinue reading
Decrease reload interval of transmission-web-control
By default transmission-web-control forces a default reload interval of 5 seconds, and a minimum of 3 seconds. As I’m not that into reducing bandwidth, I overrode the default behavior. DefaultContinue reading
Use address in “Routed IPv6 Prefixes” as default outbound address when using HE.net’s tunnel broker
By default Linux (randomly?) chooses “Client IPv6 Address” (given by HE.net) as source address for outbound connections. This can be inconvenient sometimes tough. To override this, it’s possible to addContinue reading
Default language is ignored in Transmission Web Control’s mobile page
Transmission Web Control allows setting default language in /usr/share/transmission/web/tr-web-control/config.js:
1 2 3 4 5 6 | system.config = $.extend(system.config, { // ... // default language defaultLang: "en", // ... }); |
… but it won’t take effect in mobile pages. This seems to be a minor defect in it’s mobile homeContinue reading
Add Apple Touch Icon for Transmission Web Control
Transmission Web Control is a gorgeous web UI for transmission-daemon. However, the default installation does not have an Apple Touch Icon. Meanwhile, the original control UI does come with anContinue reading
Allowing IPv6 traffic to device with dynamic routing prefix behind an ip6tables firewall
The first step would be somehow assign a static interface ID to the device. Although this should always be the case (even if your device enabled RFC4941 – Privacy ExtensionsContinue reading
Enabling RFC4941 via /etc/interfaces
From man interfaces:
1 2 3 4 5 6 7 8 9 10 11 | INET6 ADDRESS FAMILY This section documents the methods available in the inet6 address family. The auto Method [...] Options privext int Privacy extensions (RFC4941) (0=off, 1=assign, 2=prefer) |
So I put the following to /etc/interfaces.d/eth0:
1 2 | iface eth0 inet6 auto privext 2 |
update-initramfs fails to include fsck in initrd
update-initramfs reports the following warning when generating initrd.img:
1 | Warning: couldn't identify filesystem type for fsck hook, ignoring. |
To identify filesystem type of /, update-initramfs requires device of / listed in /etc/fstab. My rootfs is cross-debootstrapped in virtual machine,Continue reading
Patch for compiling Linux for meson
Yes it’s the patch metioned in [v2,0/6] ARM64: meson: GXBaby (S905) and Vega S95 enablement. You might also would like to take a look at how did I build DebianContinue reading