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authorMarc-André Lureau2022-05-25 16:41:33 +0200
committerMarc-André Lureau2022-05-28 11:42:56 +0200
commitb9947c9ce7eec9f31c9adfea2cd1f42e0bfe76b8 (patch)
tree0fc8a0ea287e39d3b23064f54b2165e065e96769
parentqga: throw an Error in ga_channel_open() (diff)
downloadqemu-b9947c9ce7eec9f31c9adfea2cd1f42e0bfe76b8.tar.gz
qemu-b9947c9ce7eec9f31c9adfea2cd1f42e0bfe76b8.tar.xz
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qga: replace qemu_open_old() with qga_open_cloexec()
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>
-rw-r--r--qga/channel-posix.c13
-rw-r--r--qga/commands-posix.c8
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));