107 lines
3.6 KiB
Diff
107 lines
3.6 KiB
Diff
From fcdec60764cd1d6f2d859558303390fffcec3633 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Thu, 11 May 2023 19:21:57 +0900
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Subject: [PATCH] core/mount: escape invalid UTF8 char in dbus reply
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When What= or Options= may contain invalid UTF8 chars.
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Replaces aaf7b0e41105d7b7cf30912cdac32820f011a219 (#27541).
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(cherry picked from commit 4804da58536ab7ad46178a03f4d2da49fd8e4ba2)
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Resolves: #2208240
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---
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src/core/dbus-mount.c | 67 +++++++++++++++++++++++++++++++++++--------
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1 file changed, 55 insertions(+), 12 deletions(-)
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diff --git a/src/core/dbus-mount.c b/src/core/dbus-mount.c
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index 73702b1a16..55ad4f2c98 100644
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--- a/src/core/dbus-mount.c
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+++ b/src/core/dbus-mount.c
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@@ -9,21 +9,66 @@
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#include "mount.h"
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#include "string-util.h"
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#include "unit.h"
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+#include "utf8.h"
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+
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+static int property_get_what(
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+ sd_bus *bus,
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+ const char *path,
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+ const char *interface,
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+ const char *property,
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+ sd_bus_message *reply,
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+ void *userdata,
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+ sd_bus_error *error) {
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+
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+ _cleanup_free_ char *escaped = NULL;
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+ Mount *m = ASSERT_PTR(userdata);
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+ const char *s = NULL;
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+
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+ assert(bus);
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+ assert(reply);
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-static const char *mount_get_what(const Mount *m) {
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if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.what)
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- return m->parameters_proc_self_mountinfo.what;
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- if (m->from_fragment && m->parameters_fragment.what)
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- return m->parameters_fragment.what;
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- return NULL;
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+ s = m->parameters_proc_self_mountinfo.what;
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+ else if (m->from_fragment && m->parameters_fragment.what)
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+ s = m->parameters_fragment.what;
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+
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+ if (s) {
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+ escaped = utf8_escape_invalid(s);
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+ if (!escaped)
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+ return -ENOMEM;
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+ }
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+
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+ return sd_bus_message_append_basic(reply, 's', escaped);
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}
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-static const char *mount_get_options(const Mount *m) {
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+static int property_get_options(
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+ sd_bus *bus,
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+ const char *path,
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+ const char *interface,
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+ const char *property,
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+ sd_bus_message *reply,
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+ void *userdata,
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+ sd_bus_error *error) {
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+
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+ _cleanup_free_ char *escaped = NULL;
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+ Mount *m = ASSERT_PTR(userdata);
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+ const char *s = NULL;
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+
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+ assert(bus);
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+ assert(reply);
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+
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if (m->from_proc_self_mountinfo && m->parameters_proc_self_mountinfo.options)
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- return m->parameters_proc_self_mountinfo.options;
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- if (m->from_fragment && m->parameters_fragment.options)
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- return m->parameters_fragment.options;
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- return NULL;
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+ s = m->parameters_proc_self_mountinfo.options;
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+ else if (m->from_fragment && m->parameters_fragment.options)
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+ s = m->parameters_fragment.options;
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+
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+ if (s) {
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+ escaped = utf8_escape_invalid(s);
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+ if (!escaped)
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+ return -ENOMEM;
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+ }
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+
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+ return sd_bus_message_append_basic(reply, 's', escaped);
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}
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static const char *mount_get_fstype(const Mount *m) {
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@@ -34,8 +79,6 @@ static const char *mount_get_fstype(const Mount *m) {
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return NULL;
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}
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-static BUS_DEFINE_PROPERTY_GET(property_get_what, "s", Mount, mount_get_what);
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-static BUS_DEFINE_PROPERTY_GET(property_get_options, "s", Mount, mount_get_options);
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static BUS_DEFINE_PROPERTY_GET(property_get_type, "s", Mount, mount_get_fstype);
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, mount_result, MountResult);
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