[PATCH 2/5] qga: Add initial FreeBSD support

[Alexander Ivanov]

Add commands-bsd.c file with dumb functions, fix device path and make
the code buildable in FreeBSD.

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
---
 meson.build          |   2 +-
 qga/commands-bsd.c   | 121 +++++++++++++++++++++++++++++++++++++++++++
 qga/commands-posix.c |   6 ++-
 qga/main.c           |  11 +++-
 qga/meson.build      |   3 ++
 5 files changed, 140 insertions(+), 3 deletions(-)
 create mode 100644 qga/commands-bsd.c

diff --git a/meson.build b/meson.build
index c2adb7caf4..574cc1e91e 100644
--- a/meson.build
+++ b/meson.build
@@ -75,7 +75,7 @@ have_tools = get_option('tools') \
   .allowed()
 have_ga = get_option('guest_agent') \
   .disable_auto_if(not have_system and not have_tools) \
-  .require(targetos in ['sunos', 'linux', 'windows'],
+  .require(targetos in ['sunos', 'linux', 'windows', 'freebsd'],
            error_message: 'unsupported OS for QEMU guest agent') \
   .allowed()
 have_block = have_system or have_tools
diff --git a/qga/commands-bsd.c b/qga/commands-bsd.c
new file mode 100644
index 0000000000..c1e3ed13e9
--- /dev/null
+++ b/qga/commands-bsd.c
@@ -0,0 +1,121 @@
+/*
+ * QEMU Guest Agent BSD-specific command implementations
+ *
+ * Copyright (c) Virtuozzo International GmbH.
+ *
+ * Authors:
+ *  Alexander Ivanov  <alexander.ivanov@virtuozzo.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qga-qapi-commands.h"
+#include "qapi/qmp/qerror.h"
+#include "qapi/error.h"
+#include "qemu/queue.h"
+#include "commands-common.h"
+
+#if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM)
+bool build_fs_mount_list(FsMountList *mounts, Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return false;
+}
+#endif
+
+#if defined(CONFIG_FSFREEZE)
+int64_t qmp_guest_fsfreeze_do_freeze_list(bool has_mountpoints,
+                                          strList *mountpoints,
+                                          FsMountList mounts,
+                                          Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return 0;
+}
+
+int qmp_guest_fsfreeze_do_thaw(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return 0;
+}
+#endif
+
+GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+void qmp_guest_suspend_disk(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+}
+
+void qmp_guest_suspend_ram(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+}
+
+void qmp_guest_suspend_hybrid(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+}
+
+GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return -1;
+}
+
+void qmp_guest_set_user_password(const char *username,
+                                 const char *password,
+                                 bool crypted,
+                                 Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+}
+
+GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+GuestMemoryBlockResponseList *
+qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 0bb8b9e2f3..3a1055d5c3 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -31,6 +31,10 @@
 #include <utmpx.h>
 #endif
 
+#ifdef __FreeBSD__
+#undef HAVE_GETIFADDRS
+#endif
+
 #ifdef HAVE_GETIFADDRS
 #include <arpa/inet.h>
 #include <sys/socket.h>
@@ -763,7 +767,7 @@ void qmp_guest_file_flush(int64_t handle, Error **errp)
     }
 }
 
-#if !defined(__linux__)
+#if !(defined(__linux__) || defined(__FreeBSD__))
 
 void qmp_guest_suspend_disk(Error **errp)
 {
diff --git a/qga/main.c b/qga/main.c
index 5f1efa2333..22b3c0df11 100644
--- a/qga/main.c
+++ b/qga/main.c
@@ -45,9 +45,14 @@
 #endif
 
 #ifndef _WIN32
+#ifdef __FreeBSD__
+#define QGA_VIRTIO_PATH_DEFAULT "/dev/vtcon/org.qemu.guest_agent.0"
+#define QGA_SERIAL_PATH_DEFAULT "/dev/vtcon/org.qemu.guest_agent.0"
+#else /* __FreeBSD__ */
 #define QGA_VIRTIO_PATH_DEFAULT "/dev/virtio-ports/org.qemu.guest_agent.0"
-#define QGA_STATE_RELATIVE_DIR  "run"
 #define QGA_SERIAL_PATH_DEFAULT "/dev/ttyS0"
+#endif /* __FreeBSD__ */
+#define QGA_STATE_RELATIVE_DIR  "run"
 #else
 #define QGA_VIRTIO_PATH_DEFAULT "\\\\.\\Global\\org.qemu.guest_agent.0"
 #define QGA_STATE_RELATIVE_DIR  "qemu-ga"
@@ -1475,7 +1480,11 @@ int main(int argc, char **argv)
     }
 
     if (config->method == NULL) {
+#ifdef CONFIG_BSD
+        config->method = g_strdup("isa-serial");
+#else
         config->method = g_strdup("virtio-serial");
+#endif
     }
 
     socket_activation = check_socket_activation();
diff --git a/qga/meson.build b/qga/meson.build
index 409f49a000..456ba4c29f 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -75,6 +75,9 @@ qga_ss.add(when: 'CONFIG_POSIX', if_true: files(
 qga_ss.add(when: 'CONFIG_LINUX', if_true: files(
   'commands-linux.c',
 ))
+qga_ss.add(when: 'CONFIG_BSD', if_true: files(
+  'commands-bsd.c',
+))
 qga_ss.add(when: 'CONFIG_WIN32', if_true: files(
   'channel-win32.c',
   'commands-win32.c',
-- 
2.34.1