Hi, trying to start screen capture in firefox currently leads to a pledge(2) violation, cause it calls shmget(2). You can test this by going to https://meet.jit.si, creating a room and trying to screen share. The patch below avoids this, by not trying to setup XShm for the screen capture. Firefox will fall back to a slower non-shm method, which is good enough to share a terminal session and is better than killing the browser I think :). A proper fix would probabaly require a lot restructuring, since the size of the shared memory depends on the selected window/screen.
Kind regards, Thomas diff --git www/mozilla-firefox/Makefile www/mozilla-firefox/Makefile index 84df38c0416..a5ce171d435 100644 --- www/mozilla-firefox/Makefile +++ www/mozilla-firefox/Makefile @@ -1,5 +1,6 @@ # $OpenBSD: Makefile,v 1.456 2021/03/23 13:25:36 landry Exp $ +REVISION = 0 COMMENT = Firefox web browser ONLY_FOR_ARCHS = amd64 i386 aarch64 diff --git www/mozilla-firefox/patches/patch-third_party_libwebrtc_webrtc_modules_desktop_capture_linux_x_server_pixel_buffer_cc www/mozilla-firefox/patches/patch-third_party_libwebrtc_webrtc_modules_desktop_capture_linux_x_server_pixel_buffer_cc new file mode 100644 index 00000000000..f9f56971462 --- /dev/null +++ www/mozilla-firefox/patches/patch-third_party_libwebrtc_webrtc_modules_desktop_capture_linux_x_server_pixel_buffer_cc @@ -0,0 +1,15 @@ +$OpenBSD$ +Avoid pledge violation. Will fall back to slower XImage method, so that screen +capture works. + +Index: third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_server_pixel_buffer.cc +--- third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_server_pixel_buffer.cc.orig ++++ third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_server_pixel_buffer.cc +@@ -181,7 +181,6 @@ bool XServerPixelBuffer::Init(Display* display, Window + } + + window_ = window; +- InitShm(attributes); + + return true; + }
