mech, qop —
GSS-API Mechanism and QOP files
/etc/gss/mech /etc/gss/qop
The /etc/gss/mech file contains a list of installed
  GSS-API security mechanisms. Each line of the file either contains a comment
  if the first character is '#' or it contains five fields with the following
  meanings:
  - Name
- The name of this GSS-API mechanism.
- Object identifier
- The OID for this mechanism.
- Library
- A shared library containing the implementation of this mechanism.
- Kernel module (optional)
- A kernel module containing the implementation of this mechanism (not yet
      supported in FreeBSD).
- Library options (optional)
- Optionsal parameters interpreted by the mechanism. Library options must be
      enclosed in brackets ([ ]) to differentiate them from the optional kernel
      module entry.
The /etc/gss/qop file contains a list of
    Quality of Protection values for use with GSS-API. Each line of the file
    either contains a comment if the first character is '#' or it contains three
    fields with the following meanings:
  - QOP string
- The name of this Quality of Protection algorithm.
- QOP value
- The numeric value used to select this algorithm for use with GSS-API
      functions such as
      gss_get_mic(3).
- Mechanism name
- The GSS-API mechanism name that corresponds to this algorithm.
This is a typical entry from /etc/gss/mech:
kerberosv5	1.2.840.113554.1.2.2	/usr/lib/libgssapi_krb5.so.8	-
 
This is a typical entry from
  /etc/gss/qop:
GSS_KRB5_CONF_C_QOP_DES		0x0100	kerberosv5
 
The mech manual page example first appeared in
  FreeBSD 7.0.