build in ssh server ignore restricting macs settings

[morph027]

• Gitea version (or commit ref): 1.13.1
• Git version: 1:2.17.1-1ubuntu0.7
• Operating system:

Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.4 LTS
Release:	18.04
Codename:	bionic

Package download from https://dl.gitea.io/gitea/ and running via systemd

• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite

Description

Setting SSH_SERVER_MACS seems to be ignored.

app.ini contains SSH_SERVER_MACS = hmac-sha2-256-etm@openssh.com, hmac-sha2-256 but ssh -Q mac gitea@<gitea-host> still lists all:

ssh -Q mac gitea@...
hmac-sha1
hmac-sha1-96
hmac-sha2-256
hmac-sha2-512
hmac-md5
hmac-md5-96
umac-64@openssh.com
umac-128@openssh.com
hmac-sha1-etm@openssh.com
hmac-sha1-96-etm@openssh.com
hmac-sha2-256-etm@openssh.com
hmac-sha2-512-etm@openssh.com
hmac-md5-etm@openssh.com
hmac-md5-96-etm@openssh.com
umac-64-etm@openssh.com
umac-128-etm@openssh.com

[lunny]

It only affects builtin SSH server.

[morph027]

Yes, sorry, forgot that.

[morph027]

Gnarf, some browser crossaccount foo....created this issue w/ my personal account, added the PR w/ my company account ...