qemu-ga: fix bsd build, and re-org linux-specific implementations

qga/commands-posix.c

@@ -12,29 +12,30 @@
  */
 
 #include <glib.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include "qga/guest-agent-core.h"
+#include "qga-qmp-commands.h"
+#include "qerror.h"
+#include "qemu-queue.h"
+#include "host-utils.h"
 
 #if defined(__linux__)
 #include <mntent.h>
 #include <linux/fs.h>
-
-#if defined(__linux__) && defined(FIFREEZE)
-#define CONFIG_FSFREEZE
-#endif
-#endif
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
 #include <ifaddrs.h>
 #include <arpa/inet.h>
 #include <sys/socket.h>
 #include <net/if.h>
 #include <sys/wait.h>
-#include "qga/guest-agent-core.h"
-#include "qga-qmp-commands.h"
-#include "qerror.h"
-#include "qemu-queue.h"
-#include "host-utils.h"
 
+#if defined(__linux__) && defined(FIFREEZE)
+#define CONFIG_FSFREEZE
+#endif
+#endif
+
+#if defined(__linux__)
+/* TODO: use this in place of all post-fork() fclose(std*) callers */
 static void reopen_fd_to_null(int fd)
 {
     int nullfd;
@@ -50,6 +51,7 @@ static void reopen_fd_to_null(int fd)
         close(nullfd);
     }
 }
+#endif /* defined(__linux__) */
 
 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err)
 {
@@ -309,7 +311,11 @@ static void guest_file_init(void)
     QTAILQ_INIT(&guest_file_state.filehandles);
 }
 
+/* linux-specific implementations. avoid this if at all possible. */
+#if defined(__linux__)
+
 #if defined(CONFIG_FSFREEZE)
+
 static void disable_logging(void)
 {
     ga_disable_logging(ga_state);
@@ -505,38 +511,7 @@ static void guest_fsfreeze_cleanup(void)
         }
     }
 }
-#else
-/*
- * Return status of freeze/thaw
- */
-GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **err)
-{
-    error_set(err, QERR_UNSUPPORTED);
-
-    return 0;
-}
-
-/*
- * Walk list of mounted file systems in the guest, and freeze the ones which
- * are real local file systems.
- */
-int64_t qmp_guest_fsfreeze_freeze(Error **err)
-{
-    error_set(err, QERR_UNSUPPORTED);
-
-    return 0;
-}
-
-/*
- * Walk list of frozen file systems in the guest, and thaw them.
- */
-int64_t qmp_guest_fsfreeze_thaw(Error **err)
-{
-    error_set(err, QERR_UNSUPPORTED);
-
-    return 0;
-}
-#endif
+#endif /* CONFIG_FSFREEZE */
 
 #define LINUX_SYS_STATE_FILE "/sys/power/state"
 #define SUSPEND_SUPPORTED 0
@@ -904,6 +879,52 @@ error:
     return NULL;
 }
 
+#else /* defined(__linux__) */
+
+GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+
+    return 0;
+}
+
+int64_t qmp_guest_fsfreeze_freeze(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+
+    return 0;
+}
+
+int64_t qmp_guest_fsfreeze_thaw(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+
+    return 0;
+}
+
+void qmp_guest_suspend_disk(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+}
+
+void qmp_guest_suspend_ram(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+}
+
+void qmp_guest_suspend_hybrid(Error **err)
+{
+    error_set(err, QERR_UNSUPPORTED);
+}
+
+GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
+{
+    error_set(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+#endif
+
 /* register init/cleanup routines for stateful command groups */
 void ga_command_state_init(GAState *s, GACommandState *cs)
 {