Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into...

[mirror_qemu.git] / backends / rng-random.c

diff --git a/backends/rng-random.c b/backends/rng-random.c
index a6cb3858e37fc1e15560873d4f26d8dcdf2ad0e2..80eb5be138cec2e5d67b889c6fbe53025f517cdd 100644 (file)
--- a/backends/rng-random.c
+++ b/backends/rng-random.c
@@ -13,10 +13,12 @@
 #include "qemu/osdep.h"
 #include "sysemu/rng-random.h"
 #include "sysemu/rng.h"
+#include "qapi/error.h"
 #include "qapi/qmp/qerror.h"
 #include "qemu/main-loop.h"
+#include "qemu/module.h"
 
-struct RndRandom
+struct RngRandom
 {
     RngBackend parent;
 
@@ -33,10 +35,10 @@ struct RndRandom
 
 static void entropy_available(void *opaque)
 {
-    RndRandom *s = RNG_RANDOM(opaque);
+    RngRandom *s = RNG_RANDOM(opaque);
 
-    while (s->parent.requests != NULL) {
-        RngRequest *req = s->parent.requests->data;
+    while (!QSIMPLEQ_EMPTY(&s->parent.requests)) {
+        RngRequest *req = QSIMPLEQ_FIRST(&s->parent.requests);
         ssize_t len;
 
         len = read(s->fd, req->data, req->size);
@@ -56,9 +58,9 @@ static void entropy_available(void *opaque)
 
 static void rng_random_request_entropy(RngBackend *b, RngRequest *req)
 {
-    RndRandom *s = RNG_RANDOM(b);
+    RngRandom *s = RNG_RANDOM(b);
 
-    if (s->parent.requests == NULL) {
+    if (QSIMPLEQ_EMPTY(&s->parent.requests)) {
         /* If there are no pending requests yet, we need to
          * install our fd handler. */
         qemu_set_fd_handler(s->fd, entropy_available, NULL, s);
@@ -67,13 +69,13 @@ static void rng_random_request_entropy(RngBackend *b, RngRequest *req)
 
 static void rng_random_opened(RngBackend *b, Error **errp)
 {
-    RndRandom *s = RNG_RANDOM(b);
+    RngRandom *s = RNG_RANDOM(b);
 
     if (s->filename == NULL) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
                    "filename", "a valid filename");
     } else {
-        s->fd = qemu_open(s->filename, O_RDONLY | O_NONBLOCK);
+        s->fd = qemu_open_old(s->filename, O_RDONLY | O_NONBLOCK);
         if (s->fd == -1) {
             error_setg_file_open(errp, errno, s->filename);
         }
@@ -82,7 +84,7 @@ static void rng_random_opened(RngBackend *b, Error **errp)
 
 static char *rng_random_get_filename(Object *obj, Error **errp)
 {
-    RndRandom *s = RNG_RANDOM(obj);
+    RngRandom *s = RNG_RANDOM(obj);
 
     return g_strdup(s->filename);
 }
@@ -91,10 +93,10 @@ static void rng_random_set_filename(Object *obj, const char *filename,
                                  Error **errp)
 {
     RngBackend *b = RNG_BACKEND(obj);
-    RndRandom *s = RNG_RANDOM(obj);
+    RngRandom *s = RNG_RANDOM(obj);
 
     if (b->opened) {
-        error_setg(errp, QERR_PERMISSION_DENIED);
+        error_setg(errp, "Property 'filename' can no longer be set");
         return;
     }
 
@@ -104,20 +106,15 @@ static void rng_random_set_filename(Object *obj, const char *filename,
 
 static void rng_random_init(Object *obj)
 {
-    RndRandom *s = RNG_RANDOM(obj);
+    RngRandom *s = RNG_RANDOM(obj);
 
-    object_property_add_str(obj, "filename",
-                            rng_random_get_filename,
-                            rng_random_set_filename,
-                            NULL);
-
-    s->filename = g_strdup("/dev/random");
+    s->filename = g_strdup("/dev/urandom");
     s->fd = -1;
 }
 
 static void rng_random_finalize(Object *obj)
 {
-    RndRandom *s = RNG_RANDOM(obj);
+    RngRandom *s = RNG_RANDOM(obj);
 
     if (s->fd != -1) {
         qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
@@ -133,12 +130,16 @@ static void rng_random_class_init(ObjectClass *klass, void *data)
 
     rbc->request_entropy = rng_random_request_entropy;
     rbc->opened = rng_random_opened;
+    object_class_property_add_str(klass, "filename",
+                                  rng_random_get_filename,
+                                  rng_random_set_filename);
+
 }
 
 static const TypeInfo rng_random_info = {
     .name = TYPE_RNG_RANDOM,
     .parent = TYPE_RNG_BACKEND,
-    .instance_size = sizeof(RndRandom),
+    .instance_size = sizeof(RngRandom),
     .class_init = rng_random_class_init,
     .instance_init = rng_random_init,
     .instance_finalize = rng_random_finalize,