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[PATCH v3 05/10] qmp: 'add_client' actually expects sockets
From: |
marcandre . lureau |
Subject: |
[PATCH v3 05/10] qmp: 'add_client' actually expects sockets |
Date: |
Tue, 7 Feb 2023 18:25:30 +0400 |
From: Marc-André Lureau <marcandre.lureau@redhat.com>
Whether it is SPICE, VNC, D-Bus, or the socket chardev, they all
actually expect a socket kind or will fail in different ways at runtime.
Throw an error early if the given 'add_client' fd is not a socket, and
close it to avoid leaks.
This allows to replace the close() call with a more correct & portable
closesocket() version.
(this will allow importing sockets on Windows with a specialized command
in the following patch, while keeping the remaining monitor associated
sockets/add_client code & usage untouched)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
monitor/qmp-cmds.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c
index 859012aef4..2dae6bb10f 100644
--- a/monitor/qmp-cmds.c
+++ b/monitor/qmp-cmds.c
@@ -14,6 +14,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/sockets.h"
#include "monitor-internal.h"
#include "monitor/qdev.h"
#include "monitor/qmp-helpers.h"
@@ -139,11 +140,17 @@ void qmp_add_client(const char *protocol, const char
*fdname,
return;
}
+ if (!fd_is_socket(fd)) {
+ error_setg(errp, "add_client expects a socket");
+ close(fd);
+ return;
+ }
+
for (i = 0; i < ARRAY_SIZE(protocol_table); i++) {
if (!strcmp(protocol, protocol_table[i].name)) {
if (!protocol_table[i].add_client(fd, has_skipauth, skipauth,
has_tls, tls, errp)) {
- close(fd);
+ closesocket(fd);
}
return;
}
@@ -151,7 +158,7 @@ void qmp_add_client(const char *protocol, const char
*fdname,
if (!qmp_add_client_char(fd, has_skipauth, skipauth, has_tls, tls,
protocol, errp)) {
- close(fd);
+ closesocket(fd);
}
}
--
2.39.1
- [PATCH v3 00/10] Teach 'getfd' QMP command to import win32 sockets, marcandre . lureau, 2023/02/07
- [PATCH v3 01/10] tests: fix path separator, use g_build_filename(), marcandre . lureau, 2023/02/07
- [PATCH v3 02/10] char: do not double-close fd when failing to add client, marcandre . lureau, 2023/02/07
- [PATCH v3 03/10] tests/docker: fix a win32 error due to portability, marcandre . lureau, 2023/02/07
- [PATCH v3 04/10] osdep: implement qemu_socketpair() for win32, marcandre . lureau, 2023/02/07
- [PATCH v3 05/10] qmp: 'add_client' actually expects sockets,
marcandre . lureau <=
- [PATCH v3 06/10] monitor: release the lock before calling close(), marcandre . lureau, 2023/02/07
[PATCH v3 07/10] qapi: implement conditional command arguments, marcandre . lureau, 2023/02/07