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gsr-kms-server 'security': only allow gpu-screen-recorder to get framebuffer

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dec05eba
2024-10-06 22:26:47 +02:00
parent 29a21ffff0
commit 28ba2e8f3e
5 changed files with 137 additions and 63 deletions
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15
src/utils.c
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@@ -464,23 +464,14 @@ static bool try_card_has_valid_plane(const char *card_path) {
return false;
}
static void string_copy(char *dst, const char *src, int len) {
int src_len = strlen(src);
int min_len = src_len;
if(len - 1 < min_len)
min_len = len - 1;
memcpy(dst, src, min_len);
dst[min_len] = '\0';
}
bool gsr_get_valid_card_path(gsr_egl *egl, char *output, bool is_monitor_capture) {
if(egl->dri_card_path) {
string_copy(output, egl->dri_card_path, 127);
snprintf(output, 128, "%s", egl->dri_card_path);
return is_monitor_capture ? try_card_has_valid_plane(output) : true;
}
for(int i = 0; i < 10; ++i) {
snprintf(output, 127, DRM_DEV_NAME, DRM_DIR_NAME, i);
snprintf(output, 128, DRM_DEV_NAME, DRM_DIR_NAME, i);
if(try_card_has_valid_plane(output))
return true;
}
@@ -494,7 +485,7 @@ bool gsr_card_path_get_render_path(const char *card_path, char *render_path) {
char *render_path_tmp = drmGetRenderDeviceNameFromFd(fd);
if(render_path_tmp) {
string_copy(render_path, render_path_tmp, 127);
snprintf(render_path, 128, "%s", render_path_tmp);
free(render_path_tmp);
close(fd);
return true;