2021-05-17 17:16:58 +02:00
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# See docs/devel/tracing.rst for syntax documentation.
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2016-06-16 10:39:49 +02:00
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2019-03-14 19:09:26 +01:00
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# tlscreds.c
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2016-06-16 10:39:49 +02:00
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qcrypto_tls_creds_load_dh(void *creds, const char *filename) "TLS creds load DH creds=%p filename=%s"
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qcrypto_tls_creds_get_path(void *creds, const char *filename, const char *path) "TLS creds path creds=%p filename=%s path=%s"
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2019-03-14 19:09:26 +01:00
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# tlscredsanon.c
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2016-06-16 10:39:49 +02:00
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qcrypto_tls_creds_anon_load(void *creds, const char *dir) "TLS creds anon load creds=%p dir=%s"
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2019-03-14 19:09:26 +01:00
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# tlscredspsk.c
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crypto: Implement TLS Pre-Shared Keys (PSK).
Pre-Shared Keys (PSK) is a simpler mechanism for enabling TLS
connections than using certificates. It requires only a simple secret
key:
$ mkdir -m 0700 /tmp/keys
$ psktool -u rjones -p /tmp/keys/keys.psk
$ cat /tmp/keys/keys.psk
rjones:d543770c15ad93d76443fb56f501a31969235f47e999720ae8d2336f6a13fcbc
The key can be secretly shared between clients and servers. Clients
must specify the directory containing the "keys.psk" file and a
username (defaults to "qemu"). Servers must specify only the
directory.
Example NBD client:
$ qemu-img info \
--object tls-creds-psk,id=tls0,dir=/tmp/keys,username=rjones,endpoint=client \
--image-opts \
file.driver=nbd,file.host=localhost,file.port=10809,file.tls-creds=tls0,file.export=/
Example NBD server using qemu-nbd:
$ qemu-nbd -t -x / \
--object tls-creds-psk,id=tls0,endpoint=server,dir=/tmp/keys \
--tls-creds tls0 \
image.qcow2
Example NBD server using nbdkit:
$ nbdkit -n -e / -fv \
--tls=on --tls-psk=/tmp/keys/keys.psk \
file file=disk.img
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-03 10:03:03 +02:00
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qcrypto_tls_creds_psk_load(void *creds, const char *dir) "TLS creds psk load creds=%p dir=%s"
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2019-03-14 19:09:26 +01:00
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# tlscredsx509.c
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2016-06-16 10:39:49 +02:00
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qcrypto_tls_creds_x509_load(void *creds, const char *dir) "TLS creds x509 load creds=%p dir=%s"
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qcrypto_tls_creds_x509_check_basic_constraints(void *creds, const char *file, int status) "TLS creds x509 check basic constraints creds=%p file=%s status=%d"
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qcrypto_tls_creds_x509_check_key_usage(void *creds, const char *file, int status, int usage, int critical) "TLS creds x509 check key usage creds=%p file=%s status=%d usage=%d critical=%d"
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qcrypto_tls_creds_x509_check_key_purpose(void *creds, const char *file, int status, const char *usage, int critical) "TLS creds x509 check key usage creds=%p file=%s status=%d usage=%s critical=%d"
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qcrypto_tls_creds_x509_load_cert(void *creds, int isServer, const char *file) "TLS creds x509 load cert creds=%p isServer=%d file=%s"
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qcrypto_tls_creds_x509_load_cert_list(void *creds, const char *file) "TLS creds x509 load cert list creds=%p file=%s"
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2019-03-14 19:09:26 +01:00
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# tlssession.c
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2016-02-18 19:40:24 +01:00
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qcrypto_tls_session_new(void *session, void *creds, const char *hostname, const char *authzid, int endpoint) "TLS session new session=%p creds=%p hostname=%s authzid=%s endpoint=%d"
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2016-09-14 11:18:09 +02:00
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qcrypto_tls_session_check_creds(void *session, const char *status) "TLS session check creds session=%p status=%s"
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crypto: Add tls-cipher-suites object
On the host OS, various aspects of TLS operation are configurable.
In particular it is possible for the sysadmin to control the TLS
cipher/protocol algorithms that applications are permitted to use.
* Any given crypto library has a built-in default priority list
defined by the distro maintainer of the library package (or by
upstream).
* The "crypto-policies" RPM (or equivalent host OS package)
provides a config file such as "/etc/crypto-policies/config",
where the sysadmin can set a high level (library-independent)
policy.
The "update-crypto-policies --set" command (or equivalent) is
used to translate the global policy to individual library
representations, producing files such as
"/etc/crypto-policies/back-ends/*.config". The generated files,
if present, are loaded by the various crypto libraries to
override their own built-in defaults.
For example, the GNUTLS library may read
"/etc/crypto-policies/back-ends/gnutls.config".
* A management application (or the QEMU user) may overide the
system-wide crypto-policies config via their own config, if
they need to diverge from the former.
Thus the priority order is "QEMU user config" > "crypto-policies
system config" > "library built-in config".
Introduce the "tls-cipher-suites" object for exposing the ordered
list of permitted TLS cipher suites from the host side to the
guest firmware, via fw_cfg. The list is represented as an array
of bytes.
The priority at which the host-side policy is retrieved is given
by the "priority" property of the new object type. For example,
"priority=@SYSTEM" may be used to refer to
"/etc/crypto-policies/back-ends/gnutls.config" (given that QEMU
uses GNUTLS).
The firmware uses the IANA_TLS_CIPHER array for configuring
guest-side TLS, for example in UEFI HTTPS Boot.
[Description from Daniel P. Berrangé, edited by Laszlo Ersek.]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200623172726.21040-2-philmd@redhat.com>
2018-10-11 20:21:11 +02:00
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# tls-cipher-suites.c
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qcrypto_tls_cipher_suite_priority(const char *name) "priority: %s"
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qcrypto_tls_cipher_suite_info(uint8_t data0, uint8_t data1, const char *version, const char *name) "data=[0x%02x,0x%02x] version=%s name=%s"
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qcrypto_tls_cipher_suite_count(unsigned count) "count: %u"
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