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Add support for security-context-v1

Browse source 
As a first step, deny access to privileged protocols to sandboxed
apps.

References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3589
This commit is contained in:
Simon Ser 2023-06-22 17:06:10 +02:00
parent 5bdd608514
commit 072fa60cb4
2 changed files with 38 additions and 4 deletions
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4
include/sway/server.h
View file

@ -114,6 +114,10 @@ struct sway_server {
struct wlr_text_input_manager_v3 *text_input; struct wlr_text_input_manager_v3 *text_input;
struct wlr_foreign_toplevel_manager_v1 *foreign_toplevel_manager; struct wlr_foreign_toplevel_manager_v1 *foreign_toplevel_manager;
struct wlr_content_type_manager_v1 *content_type_manager_v1; struct wlr_content_type_manager_v1 *content_type_manager_v1;
struct wlr_data_control_manager_v1 *data_control_manager_v1;
struct wlr_screencopy_manager_v1 *screencopy_manager_v1;
struct wlr_export_dmabuf_manager_v1 *export_dmabuf_manager_v1;
struct wlr_security_context_manager_v1 *security_context_manager_v1;
struct wlr_xdg_activation_v1 *xdg_activation_v1; struct wlr_xdg_activation_v1 *xdg_activation_v1;
struct wl_listener xdg_activation_v1_request_activate; struct wl_listener xdg_activation_v1_request_activate;

38
sway/server.c
View file

@ -24,8 +24,9 @@
#include <wlr/types/wlr_primary_selection_v1.h> #include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_relative_pointer_v1.h> #include <wlr/types/wlr_relative_pointer_v1.h>
#include <wlr/types/wlr_screencopy_v1.h> #include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_single_pixel_buffer_v1.h> #include <wlr/types/wlr_security_context_v1.h>
#include <wlr/types/wlr_server_decoration.h> #include <wlr/types/wlr_server_decoration.h>
#include <wlr/types/wlr_single_pixel_buffer_v1.h>
#include <wlr/types/wlr_subcompositor.h> #include <wlr/types/wlr_subcompositor.h>
#include <wlr/types/wlr_tablet_v2.h> #include <wlr/types/wlr_tablet_v2.h>
#include <wlr/types/wlr_viewporter.h> #include <wlr/types/wlr_viewporter.h>
@ -73,6 +74,25 @@ static void handle_drm_lease_request(struct wl_listener *listener, void *data) {
} }
#endif #endif
static bool is_privileged(const struct wl_global *global) {
return
global == server.output_manager_v1->global ||
global == server.output_power_manager_v1->global ||
global == server.input_method->global ||
global == server.foreign_toplevel_manager->global ||
global == server.data_control_manager_v1->global ||
global == server.screencopy_manager_v1->global ||
global == server.export_dmabuf_manager_v1->global ||
global == server.security_context_manager_v1->global ||
global == server.gamma_control_manager_v1->global ||
global == server.layer_shell->global ||
global == server.session_lock.manager->global ||
global == server.input->inhibit->global ||
global == server.input->keyboard_shortcuts_inhibit->global ||
global == server.input->virtual_keyboard->global ||
global == server.input->virtual_pointer->global;
}
static bool filter_global(const struct wl_client *client, static bool filter_global(const struct wl_client *client,
const struct wl_global *global, void *data) { const struct wl_global *global, void *data) {
#if HAVE_XWAYLAND #if HAVE_XWAYLAND
@ -82,6 +102,15 @@ static bool filter_global(const struct wl_client *client,
} }
#endif #endif
// Restrict usage of privileged protocols to unsandboxed clients
// TODO: add a way for users to configure an allow-list
const struct wlr_security_context_v1_state *security_context =
wlr_security_context_manager_v1_lookup_client(
server.security_context_manager_v1, (struct wl_client *)client);
if (is_privileged(global)) {
return security_context == NULL;
}
return true; return true;
} }
@ -226,9 +255,10 @@ bool server_init(struct sway_server *server) {
} }
#endif #endif
wlr_export_dmabuf_manager_v1_create(server->wl_display); server->export_dmabuf_manager_v1 = wlr_export_dmabuf_manager_v1_create(server->wl_display);
wlr_screencopy_manager_v1_create(server->wl_display); server->screencopy_manager_v1 = wlr_screencopy_manager_v1_create(server->wl_display);
wlr_data_control_manager_v1_create(server->wl_display); server->data_control_manager_v1 = wlr_data_control_manager_v1_create(server->wl_display);
server->security_context_manager_v1 = wlr_security_context_manager_v1_create(server->wl_display);
wlr_viewporter_create(server->wl_display); wlr_viewporter_create(server->wl_display);
wlr_single_pixel_buffer_manager_v1_create(server->wl_display); wlr_single_pixel_buffer_manager_v1_create(server->wl_display);
server->content_type_manager_v1 = server->content_type_manager_v1 =