2021-06-11 02:11:55

by João Paulo Rechi Vita

[permalink] [raw]
Subject: [PATCH BlueZ] profile: Fail RegisterProfile if UUID already exists

From: João Paulo Rechi Vita <[email protected]>

If a process tries to register a profile implementation that is already
registered, RegisterProfile should fail.

This should help address issues when two instances of PulseAudio are
running at the same time, and the second instance tries to register an
audio profile implementation that has already been registered by the
first instance. Two situations where this may happen is when more than
one user is logged in, or during the transition between the GDM session
and the user session, when PulseAudio gets started on the new session
before the old session has been fully terminated.

https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/303
https://gitlab.gnome.org/GNOME/gdm/-/issues/486
---
src/profile.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)

diff --git a/src/profile.c b/src/profile.c
index 5e460b639..60d17b6ae 100644
--- a/src/profile.c
+++ b/src/profile.c
@@ -749,6 +749,30 @@ void btd_profile_foreach(void (*func)(struct btd_profile *p, void *data),
}
}

+static struct btd_profile *btd_profile_find_uuid(const char *uuid)
+{
+ GSList *l, *next;
+
+ for (l = profiles; l != NULL; l = next) {
+ struct btd_profile *p = l->data;
+
+ if (!g_strcmp0(p->local_uuid, uuid))
+ return p;
+ next = g_slist_next(l);
+ }
+
+ for (l = ext_profiles; l != NULL; l = next) {
+ struct ext_profile *ext = l->data;
+ struct btd_profile *p = &ext->p;
+
+ if (!g_strcmp0(p->local_uuid, uuid))
+ return p;
+ next = g_slist_next(l);
+ }
+
+ return NULL;
+}
+
int btd_profile_register(struct btd_profile *profile)
{
profiles = g_slist_append(profiles, profile);
@@ -2441,6 +2465,12 @@ static DBusMessage *register_profile(DBusConnection *conn,
dbus_message_iter_get_basic(&args, &uuid);
dbus_message_iter_next(&args);

+ if (btd_profile_find_uuid(uuid)) {
+ warn("%s tried to register %s which is already registered",
+ sender, uuid);
+ return btd_error_not_permitted(msg, "UUID already registered");
+ }
+
if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_ARRAY)
return btd_error_invalid_args(msg);

--
2.20.1


2021-06-11 02:46:32

by bluez.test.bot

[permalink] [raw]
Subject: RE: [BlueZ] profile: Fail RegisterProfile if UUID already exists

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=498503

---Test result---

Test Summary:
CheckPatch PASS 0.61 seconds
GitLint PASS 0.12 seconds
Prep - Setup ELL PASS 46.43 seconds
Build - Prep PASS 0.14 seconds
Build - Configure PASS 8.27 seconds
Build - Make PASS 204.57 seconds
Make Check PASS 9.18 seconds
Make Distcheck PASS 233.55 seconds
Build w/ext ELL - Configure PASS 8.01 seconds
Build w/ext ELL - Make PASS 186.29 seconds

Details
##############################
Test: CheckPatch - PASS
Desc: Run checkpatch.pl script with rule in .checkpatch.conf

##############################
Test: GitLint - PASS
Desc: Run gitlint with rule in .gitlint

##############################
Test: Prep - Setup ELL - PASS
Desc: Clone, build, and install ELL

##############################
Test: Build - Prep - PASS
Desc: Prepare environment for build

##############################
Test: Build - Configure - PASS
Desc: Configure the BlueZ source tree

##############################
Test: Build - Make - PASS
Desc: Build the BlueZ source tree

##############################
Test: Make Check - PASS
Desc: Run 'make check'

##############################
Test: Make Distcheck - PASS
Desc: Run distcheck to check the distribution

##############################
Test: Build w/ext ELL - Configure - PASS
Desc: Configure BlueZ source with '--enable-external-ell' configuration

##############################
Test: Build w/ext ELL - Make - PASS
Desc: Build BlueZ source with '--enable-external-ell' configuration



---
Regards,
Linux Bluetooth