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libceph: introduce connection modes and ms_mode option

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msgr2 supports two connection modes: crc (plain) and secure (on-wire
encryption).  Connection mode is picked by server based on input from
client.

Introduce ms_mode option:

  ms_mode=legacy        - msgr1 (default)
  ms_mode=crc           - crc mode, if denied fail
  ms_mode=secure        - secure mode, if denied fail
  ms_mode=prefer-crc    - crc mode, if denied agree to secure mode
  ms_mode=prefer-secure - secure mode, if denied agree to crc mode

ms_mode affects all connections, we don't separate connections to mons
like it's done in userspace with ms_client_mode vs ms_mon_client_mode.

For now the default is legacy, to be flipped to prefer-crc after some
time.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov
2020-11-19 16:04:58 +01:00
parent 313771e80f
commit 00498b9941
7 changed files with 100 additions and 8 deletions
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14
net/ceph/ceph_strings.c
View File

@@ -32,6 +32,20 @@ const char *ceph_auth_proto_name(int proto)
}
}
const char *ceph_con_mode_name(int mode)
{
switch (mode) {
case CEPH_CON_MODE_UNKNOWN:
return "unknown";
case CEPH_CON_MODE_CRC:
return "crc";
case CEPH_CON_MODE_SECURE:
return "secure";
default:
return "???";
}
}
const char *ceph_osd_op_name(int op)
{
switch (op) {