1409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan/* 2409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * Copyright (c) 2012 Intel Corporation. All Rights Reserved. 3409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * 4409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * Permission is hereby granted, free of charge, to any person obtaining a 5409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * copy of this software and associated documentation files (the 6409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * "Software"), to deal in the Software without restriction, including 7409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * without limitation the rights to use, copy, modify, merge, publish, 8409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * distribute, sub license, and/or sell copies of the Software, and to 9409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * permit persons to whom the Software is furnished to do so, subject to 10409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * the following conditions: 11409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * 12409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * The above copyright notice and this permission notice (including the 13409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * next paragraph) shall be included in all copies or substantial portions 14409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * of the Software. 15409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * 16409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 19409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR 20409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan */ 24409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 25409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#define _GNU_SOURCE 1 26409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#include "sysdeps.h" 27409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#include <dlfcn.h> 28409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#include <X11/Xlib.h> 29409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#include "va_drm_auth_x11.h" 30409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 31409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan#define LIBVA_MAJOR_VERSION 1 32409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 33409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef struct drm_auth_x11 DRMAuthX11; 34409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef struct drm_auth_x11_vtable DRMAuthX11VTable; 35409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 36409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef void (*VAGenericFunc)(void); 37409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef Display *(*X11OpenDisplayFunc)(const char *display_name); 38409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef int (*X11CloseDisplayFunc)(Display *display); 39409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef Bool (*VADRI2QueryExtensionFunc)( 40409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan Display *display, int *event_base, int *error_base); 41409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef Bool (*VADRI2QueryVersionFunc)( 42409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan Display *display, int *major, int *minor); 43409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuantypedef Bool (*VADRI2AuthenticateFunc)( 44409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan Display *display, XID window, uint32_t magic); 45409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 46409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstruct drm_auth_x11_vtable { 47409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan X11OpenDisplayFunc x11_open_display; 48409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan X11CloseDisplayFunc x11_close_display; 49409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan VADRI2QueryExtensionFunc va_dri2_query_extension; 50409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan VADRI2QueryVersionFunc va_dri2_query_version; 51409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan VADRI2AuthenticateFunc va_dri2_authenticate; 52409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan}; 53409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 54409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstruct drm_auth_x11 { 55409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan void *handle; /* libva-x11.so.1 */ 56409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan DRMAuthX11VTable vtable; 57409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan Display *display; 58409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan Window window; 59409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan}; 60409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 61409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstatic bool 62409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanget_symbol(void *handle, void *func_vptr, const char *name) 63409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan{ 64409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan VAGenericFunc func, *func_ptr = func_vptr; 65409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan const char *error; 66409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 67409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan dlerror(); 68409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan func = (VAGenericFunc)dlsym(handle, name); 69409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan error = dlerror(); 70409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 71409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (error) { 72409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan fprintf(stderr, "error: failed to resolve %s() function: %s\n", 73409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan name, error); 74409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 75409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan } 76409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 77409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan *func_ptr = func; 78409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return true; 79409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan} 80409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 81409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstatic bool 82409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuandrm_auth_x11_init(DRMAuthX11 *auth) 83409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan{ 84409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan struct drm_auth_x11_vtable *vtable; 85409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan char libva_x11_name[16]; 86409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan int ret; 87409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 88409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan ret = snprintf( 89409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan libva_x11_name, sizeof(libva_x11_name), 90409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan "libva-x11.so.%d", LIBVA_MAJOR_VERSION 91409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan ); 92409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (ret < 0 || ret >= sizeof(libva_x11_name)) 93409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 94409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 95409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->handle = dlopen(libva_x11_name, RTLD_LAZY | RTLD_GLOBAL); 96409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!auth->handle) { 97409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan perror("open lib"); 98409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 99409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan } 100409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 101409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan vtable = &auth->vtable; 102409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!get_symbol(RTLD_DEFAULT, &vtable->x11_open_display, "XOpenDisplay")) 103409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 104409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!get_symbol(RTLD_DEFAULT, &vtable->x11_close_display, "XCloseDisplay")) 105409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 106409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!get_symbol(auth->handle, &vtable->va_dri2_query_extension, 107409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan "VA_DRI2QueryExtension")) 108409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 109409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!get_symbol(auth->handle, &vtable->va_dri2_query_version, 110409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan "VA_DRI2QueryVersion")) 111409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 112409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!get_symbol(auth->handle, &vtable->va_dri2_authenticate, 113409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan "VA_DRI2Authenticate")) 114409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 115409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 116409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->display = vtable->x11_open_display(NULL); 117409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!auth->display) 118409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 119409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 120409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->window = DefaultRootWindow(auth->display); 121409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return true; 122409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan} 123409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 124409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstatic void 125409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuandrm_auth_x11_terminate(DRMAuthX11 *auth) 126409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan{ 127409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!auth) 128409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return; 129409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 130409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (auth->display) { 131409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->vtable.x11_close_display(auth->display); 132409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->display = NULL; 133409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->window = None; 134409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan } 135409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 136409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (auth->handle) { 137409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan dlclose(auth->handle); 138409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan auth->handle = NULL; 139409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan } 140409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan} 141409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 142409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanstatic bool 143409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuandrm_auth_x11_authenticate(DRMAuthX11 *auth, int fd, uint32_t magic) 144409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan{ 145409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan DRMAuthX11VTable * const vtable = &auth->vtable; 146409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan int evt_base, err_base, v_major, v_minor; 147409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 148409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!vtable->va_dri2_query_extension(auth->display, &evt_base, &err_base)) 149409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 150409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!vtable->va_dri2_query_version(auth->display, &v_major, &v_minor)) 151409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 152409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!vtable->va_dri2_authenticate(auth->display, auth->window, magic)) 153409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return false; 154409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return true; 155409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan} 156409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 157409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan/* Try to authenticate the DRM connection with the supplied magic through X11 */ 158409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanbool 159409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanva_drm_authenticate_x11(int fd, uint32_t magic) 160409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan{ 161409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan DRMAuthX11 auth; 162409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan bool success = false; 163409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 164409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan memset(&auth, 0, sizeof(auth)); 165409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan if (!drm_auth_x11_init(&auth)) 166409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan goto end; 167409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan success = drm_auth_x11_authenticate(&auth, fd, magic); 168409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan 169409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuanend: 170409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan drm_auth_x11_terminate(&auth); 171409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan return success; 172409de6acb4473c973ed2532e340831dc582e5e0eAustin Yuan} 173