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author | Jan200101 <sentrycraft123@gmail.com> | 2024-10-09 20:08:15 +0200 |
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committer | Jan200101 <sentrycraft123@gmail.com> | 2024-10-09 20:08:15 +0200 |
commit | d4a54e18ca707d4bf2ab7732fce591d598a7c15e (patch) | |
tree | 8fb0ab49c0254f4629bd12f95b69b3408d6fc685 /SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch | |
parent | 2bc81be55c381d2bfd0543f36c4eafd8517c8972 (diff) | |
download | kernel-fsync-d4a54e18ca707d4bf2ab7732fce591d598a7c15e.tar.gz kernel-fsync-d4a54e18ca707d4bf2ab7732fce591d598a7c15e.zip |
kernel 6.11.2
Diffstat (limited to 'SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch')
-rw-r--r-- | SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch b/SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch deleted file mode 100644 index 71d9c59..0000000 --- a/SOURCES/0001-add-revoke_all-ioctl-to-release-event-and-joy-nodes-.patch +++ /dev/null @@ -1,208 +0,0 @@ -From e24eba6f9ffd2338028116ddc1e14ba5b68b997a Mon Sep 17 00:00:00 2001 -From: antheas <antheas@users.noreply.github.com> -Date: Wed, 17 Jul 2024 17:14:06 +0300 -Subject: [PATCH] add revoke_all ioctl to release event and joy nodes after - hiding - ---- - drivers/input/evdev.c | 24 ++++++++++++++++ - drivers/input/joydev.c | 54 ++++++++++++++++++++++++++++++----- - include/uapi/linux/input.h | 1 + - include/uapi/linux/joystick.h | 4 +++ - 4 files changed, 76 insertions(+), 7 deletions(-) - -diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c -index 51e0c4954600..87226069d076 100644 ---- a/drivers/input/evdev.c -+++ b/drivers/input/evdev.c -@@ -951,6 +951,21 @@ static int evdev_revoke(struct evdev *evdev, struct evdev_client *client, - return 0; - } - -+static int evdev_revoke_all(struct evdev *evdev, struct file *file) -+{ -+ struct evdev_client *client; -+ input_flush_device(&evdev->handle, file); -+ -+ spin_lock(&evdev->client_lock); -+ list_for_each_entry(client, &evdev->client_list, node) { -+ client->revoked = true; -+ evdev_ungrab(evdev, client); -+ wake_up_interruptible_poll(&client->wait, EPOLLHUP | EPOLLERR); -+ } -+ spin_unlock(&evdev->client_lock); -+ return 0; -+} -+ - /* must be called with evdev-mutex held */ - static int evdev_set_mask(struct evdev_client *client, - unsigned int type, -@@ -1094,6 +1109,15 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, - return -EINVAL; - else - return evdev_revoke(evdev, client, file); -+ -+ case EVIOCREVOKEALL: -+ if (!capable(CAP_SYS_ADMIN)) -+ return -EACCES; -+ -+ if (p) -+ return -EINVAL; -+ else -+ return evdev_revoke_all(evdev, file); - - case EVIOCGMASK: { - void __user *codes_ptr; -diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c -index 5824bca02e5a..3bdf3a1971f7 100644 ---- a/drivers/input/joydev.c -+++ b/drivers/input/joydev.c -@@ -63,8 +63,29 @@ struct joydev_client { - struct fasync_struct *fasync; - struct joydev *joydev; - struct list_head node; -+ bool revoked; - }; - -+static int joydev_revoke(struct joydev *joydev, struct joydev_client *client) -+{ -+ client->revoked = true; -+ wake_up_interruptible(&joydev->wait); -+ return 0; -+} -+ -+static int joydev_revoke_all(struct joydev *joydev) -+{ -+ struct joydev_client *client; -+ -+ spin_lock(&joydev->client_lock); -+ list_for_each_entry(client, &joydev->client_list, node) { -+ client->revoked = true; -+ } -+ spin_unlock(&joydev->client_lock); -+ wake_up_interruptible(&joydev->wait); -+ return 0; -+} -+ - static int joydev_correct(int value, struct js_corr *corr) - { - switch (corr->type) { -@@ -89,6 +110,9 @@ static void joydev_pass_event(struct joydev_client *client, - struct js_event *event) - { - struct joydev *joydev = client->joydev; -+ -+ if (client->revoked) -+ return; - - /* - * IRQs already disabled, just acquire the lock -@@ -345,6 +369,9 @@ static ssize_t joydev_0x_read(struct joydev_client *client, - struct JS_DATA_TYPE data; - int i; - -+ if (client->revoked) -+ return -ENODEV; -+ - spin_lock_irq(&input->event_lock); - - /* -@@ -402,7 +429,7 @@ static ssize_t joydev_read(struct file *file, char __user *buf, - return -EAGAIN; - - retval = wait_event_interruptible(joydev->wait, -- !joydev->exist || joydev_data_pending(client)); -+ !joydev->exist || client->revoked || joydev_data_pending(client)); - if (retval) - return retval; - -@@ -438,7 +465,7 @@ static __poll_t joydev_poll(struct file *file, poll_table *wait) - - poll_wait(file, &joydev->wait, wait); - return (joydev_data_pending(client) ? (EPOLLIN | EPOLLRDNORM) : 0) | -- (joydev->exist ? 0 : (EPOLLHUP | EPOLLERR)); -+ (joydev->exist && !client->revoked ? 0 : (EPOLLHUP | EPOLLERR)); - } - - static int joydev_handle_JSIOCSAXMAP(struct joydev *joydev, -@@ -506,9 +533,8 @@ static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev, - return retval; - } - -- --static int joydev_ioctl_common(struct joydev *joydev, -- unsigned int cmd, void __user *argp) -+static int joydev_ioctl_common(struct joydev *joydev, struct joydev_client *client, -+ unsigned int cmd, void __user *argp) - { - struct input_dev *dev = joydev->handle.dev; - size_t len; -@@ -556,6 +582,20 @@ static int joydev_ioctl_common(struct joydev *joydev, - return copy_to_user(argp, joydev->corr, - sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0; - -+ case JSIOCREVOKE: -+ if (argp) -+ return -EINVAL; -+ else -+ return joydev_revoke(joydev, client); -+ -+ case JSIOCREVOKEALL: -+ if (!capable(CAP_SYS_ADMIN)) -+ return -EACCES; -+ -+ if (argp) -+ return -EINVAL; -+ else -+ return joydev_revoke_all(joydev); - } - - /* -@@ -649,7 +689,7 @@ static long joydev_compat_ioctl(struct file *file, - break; - - default: -- retval = joydev_ioctl_common(joydev, cmd, argp); -+ retval = joydev_ioctl_common(joydev, client, cmd, argp); - break; - } - -@@ -699,7 +739,7 @@ static long joydev_ioctl(struct file *file, - break; - - default: -- retval = joydev_ioctl_common(joydev, cmd, argp); -+ retval = joydev_ioctl_common(joydev, client, cmd, argp); - break; - } - out: -diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h -index 2557eb7b0561..38bfac937add 100644 ---- a/include/uapi/linux/input.h -+++ b/include/uapi/linux/input.h -@@ -185,6 +185,7 @@ struct input_mask { - - #define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */ - #define EVIOCREVOKE _IOW('E', 0x91, int) /* Revoke device access */ -+#define EVIOCREVOKEALL _IOW('E', 0x94, int) /* Revoke device access from all clients. Requires CAP_SYS_ADMIN. */ - - /** - * EVIOCGMASK - Retrieve current event mask -diff --git a/include/uapi/linux/joystick.h b/include/uapi/linux/joystick.h -index 192bf2cf182d..543b004802f3 100644 ---- a/include/uapi/linux/joystick.h -+++ b/include/uapi/linux/joystick.h -@@ -66,6 +66,10 @@ struct js_event { - #define JSIOCSBTNMAP _IOW('j', 0x33, __u16[KEY_MAX - BTN_MISC + 1]) /* set button mapping */ - #define JSIOCGBTNMAP _IOR('j', 0x34, __u16[KEY_MAX - BTN_MISC + 1]) /* get button mapping */ - -+#define JSIOCREVOKE _IOW('j', 0x91, int) /* Revoke device access */ -+#define JSIOCREVOKEALL _IOW('j', 0x94, int) /* Revoke device access from all clients. Requires CAP_SYS_ADMIN. */ -+ -+ - /* - * Types and constants for get/set correction - */ --- -2.45.2 - |