mirror of https://gitee.com/openkylin/qemu.git
13f12430d4
The gnutls default priority is either "NORMAL" (most historical
versions of gnutls) which is a built-in label in gnutls code,
or "@SYSTEM" (latest gnutls on Fedora at least) which refers
to an admin customizable entry in a gnutls config file.
Regardless of which default is used by a distro, they are both
global defaults applying to all applications using gnutls. If
a single application on the system needs to use a weaker set
of crypto priorities, this potentially forces the weakness onto
all applications. Or conversely if a single application wants a
strong default than all others, it can't do this via the global
config file.
This adds an extra parameter to the tls credential object which
allows the mgmt app / user to explicitly provide a priority
string to QEMU when configuring TLS.
For example, to use the "NORMAL" priority, but disable SSL 3.0
one can now configure QEMU thus:
$QEMU -object tls-creds-x509,id=tls0,dir=/home/berrange/qemutls,\
priority="NORMAL:-VERS-SSL3.0" \
..other args...
If creating tls-creds-anon, whatever priority the user specifies
will always have "+ANON-DH" appended to it, since that's mandatory
to make the anonymous credentials work.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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|---|---|---|
| .. | ||
| aes.h | ||
| afsplit.h | ||
| block.h | ||
| cipher.h | ||
| desrfb.h | ||
| hash.h | ||
| init.h | ||
| ivgen.h | ||
| pbkdf.h | ||
| random.h | ||
| secret.h | ||
| tlscreds.h | ||
| tlscredsanon.h | ||
| tlscredsx509.h | ||
| tlssession.h | ||
| xts.h | ||