crypto: introduce new module for computing hash digests

Introduce a new crypto/ directory that will (eventually) contain
all the cryptographic related code. This initially defines a
wrapper for initializing gnutls and for computing hashes with
gnutls. The former ensures that gnutls is guaranteed to be
initialized exactly once in QEMU regardless of CLI args. The
block quorum code currently fails to initialize gnutls so it
only works by luck, if VNC server TLS is not requested. The
hash APIs avoids the need to litter the rest of the code with
preprocessor checks and simplifies callers by allocating the
correct amount of memory for the requested hash.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1435770638-25715-2-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Daniel P. Berrange 2015-07-01 18:10:29 +01:00 committed by Paolo Bonzini
parent 6b3f7f639e
commit ddbb0d0966
12 changed files with 752 additions and 0 deletions

7
vl.c
View file

@ -121,6 +121,7 @@ int main(int argc, char **argv)
#include "qom/object_interfaces.h"
#include "qapi-event.h"
#include "exec/semihost.h"
#include "crypto/init.h"
#define MAX_VIRTIO_CONSOLES 1
#define MAX_SCLP_CONSOLES 1
@ -2958,6 +2959,7 @@ int main(int argc, char **argv, char **envp)
uint64_t ram_slots = 0;
FILE *vmstate_dump_file = NULL;
Error *main_loop_err = NULL;
Error *err = NULL;
qemu_init_cpu_loop();
qemu_mutex_lock_iothread();
@ -3001,6 +3003,11 @@ int main(int argc, char **argv, char **envp)
runstate_init();
if (qcrypto_init(&err) < 0) {
fprintf(stderr, "Cannot initialize crypto: %s\n",
error_get_pretty(err));
exit(1);
}
rtc_clock = QEMU_CLOCK_HOST;
QLIST_INIT (&vm_change_state_head);