From b9947c9ce7eec9f31c9adfea2cd1f42e0bfe76b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Wed, 25 May 2022 16:41:33 +0200
Subject: [PATCH] qga: replace qemu_open_old() with qga_open_cloexec()
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qemu_open_old() uses qemu_open_internal() which handles special
"/dev/fdset/" path for monitor fd sets, set CLOEXEC, and uses Error
reporting (and some O_DIRECT special error casing).

The monitor fdset handling is unnecessary for qga, use
qga_open_cloexec() instead.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Message-Id: <20220525144140.591926-9-marcandre.lureau@redhat.com>
---
 qga/channel-posix.c  | 13 +++++++++----
 qga/commands-posix.c |  8 ++++----
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/qga/channel-posix.c b/qga/channel-posix.c
index 25fcc5cb1a..6796a02cff 100644
--- a/qga/channel-posix.c
+++ b/qga/channel-posix.c
@@ -1,8 +1,10 @@
 #include "qemu/osdep.h"
+#include "qemu/cutils.h"
 #include <termios.h>
 #include "qapi/error.h"
 #include "qemu/sockets.h"
 #include "channel.h"
+#include "cutils.h"
 
 #ifdef CONFIG_SOLARIS
 #include <stropts.h>
@@ -127,11 +129,14 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path,
     switch (c->method) {
     case GA_CHANNEL_VIRTIO_SERIAL: {
         assert(fd < 0);
-        fd = qemu_open_old(path, O_RDWR | O_NONBLOCK
+        fd = qga_open_cloexec(
+            path,
 #ifndef CONFIG_SOLARIS
-                           | O_ASYNC
+            O_ASYNC |
 #endif
-                           );
+            O_RDWR | O_NONBLOCK,
+            0
+        );
         if (fd == -1) {
             error_setg_errno(errp, errno, "error opening channel");
             return false;
@@ -156,7 +161,7 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path,
         struct termios tio;
 
         assert(fd < 0);
-        fd = qemu_open_old(path, O_RDWR | O_NOCTTY | O_NONBLOCK);
+        fd = qga_open_cloexec(path, O_RDWR | O_NOCTTY | O_NONBLOCK, 0);
         if (fd == -1) {
             error_setg_errno(errp, errno, "error opening channel");
             return false;
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 2ecc43eca9..0047245273 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -1406,7 +1406,7 @@ static void get_nvme_smart(GuestDiskInfo *disk)
                  | (((sizeof(log) >> 2) - 1) << 16)
     };
 
-    fd = qemu_open_old(disk->name, O_RDONLY);
+    fd = qga_open_cloexec(disk->name, O_RDONLY, 0);
     if (fd == -1) {
         g_debug("Failed to open device: %s: %s", disk->name, g_strerror(errno));
         return;
@@ -1739,7 +1739,7 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
             }
         }
 
-        fd = qemu_open_old(mount->dirname, O_RDONLY);
+        fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0);
         if (fd == -1) {
             error_setg_errno(errp, errno, "failed to open %s", mount->dirname);
             goto error;
@@ -1806,7 +1806,7 @@ int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 
     QTAILQ_FOREACH(mount, &mounts, next) {
         logged = false;
-        fd = qemu_open_old(mount->dirname, O_RDONLY);
+        fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0);
         if (fd == -1) {
             continue;
         }
@@ -1892,7 +1892,7 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 
         QAPI_LIST_PREPEND(response->paths, result);
 
-        fd = qemu_open_old(mount->dirname, O_RDONLY);
+        fd = qga_open_cloexec(mount->dirname, O_RDONLY, 0);
         if (fd == -1) {
             result->error = g_strdup_printf("failed to open: %s",
                                             strerror(errno));