Shadowsocks-libev: ss-redir terminated on run in UDP mode

[kimw]

What version of shadowsocks-libev are you using?

894eae5 (v3.0.0-dev)

What operating system are you using?

elementary OS Loki based on Ubuntu Xenial

No LSB modules are available.
Distributor ID: elementary
Description:    elementary OS 0.4 Loki
Release:    0.4
Codename:   loki

What wrong?

ss-redir reports IP_TRANSPARENT: Operation not permitted on run in UDP mode.

$ ss-redir -s 1.2.3.4 -p 5678 -k passphrase -l 1081 -u
INFO: initializing ciphers... aes-256-cfb
INFO: UDP relay enabled
ERROR: [udp] setsockopt IP_TRANSPARENT: Operation not permitted

It works fine without UDP.

$ ss-redir -s 1.2.3.4 -p 5678 -k passphrase -l 1081
INFO: initializing ciphers... rc4-md5
INFO: listening at 127.0.0.1:1081

PS, the tag:v3.0.0 runs well, but the recent commit not.

[madeye]

You need to run ss-redir in root user when UDP transparent proxy is enabled.

[kimw]

Yes I see. But why there's no nessesery to run as root in previous commit? Is there anything changed in design ?

[madeye]

I think all the previous versions of ss-redir require ROOT permission to work in TPROXY mode. Maybe you need double check.

[kimw]

Yap, you're right. It's my bad. :(

---

EDIT: the word yap should be yep. But whatever you already know what I mean :)

[wongsyrone]

科普一下
是yup,yea和yep,等于yes
不是yap（n.狂吠声；废话；笨蛋vt.瞎讲vi.狂吠；哇啦哇啦地瞎说）和ya.

[kimw]

@wongsyrone I spelled yep first, but the auto-correction tip me that it's wrong...so I tried yap...the tip disappeared and joke made :D

Anyway, thank you very much for point it out. I learned 4 more words, yup, yea, yap and ya. lol.

[wongsyrone]

因为这些都是过于口语化的说法，如果是面向书面语的自动纠正很可能没有词库支持，于是告诉你是错的。