backend/session: Remove direct backend

This is instead delegated to libseat.

7 files changed, 1 insertions, 871 deletions

diff --git a/backend/session/direct-freebsd.c b/backend/session/direct-freebsd.c
deleted file mode 100644
index 302b0ff4..00000000
--- a/backend/session/direct-freebsd.c
+++ /dev/null
@@ -1,319 +0,0 @@
-#include <assert.h>
-#include <linux/input.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/consio.h>
-#include <sys/ioctl.h>
-#include <sys/kbio.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <termios.h>
-#include <unistd.h>
-#include <wayland-server-core.h>
-#include <wlr/backend/session/interface.h>
-#include <wlr/util/log.h>
-#include <xf86drm.h>
-#include "backend/session/direct-ipc.h"
-#include "backend/session/session.h"
-#include "util/signal.h"
-
-const struct session_impl session_direct;
-
-struct direct_session {
-	struct wlr_session base;
-	int tty_fd;
-	int old_tty;
-	int old_kbmode;
-	int sock;
-	pid_t child;
-
-	struct wl_event_source *vt_source;
-};
-
-static struct direct_session *direct_session_from_session(
-		struct wlr_session *base) {
-	assert(base->impl == &session_direct);
-	return (struct direct_session *)base;
-}
-
-static int direct_session_open(struct wlr_session *base, const char *path) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	int fd = direct_ipc_open(session->sock, path);
-	if (fd < 0) {
-		wlr_log(WLR_ERROR, "Failed to open %s: %s%s", path, strerror(-fd),
-			fd == -EINVAL ? "; is another display server running?" : "");
-		return fd;
-	}
-
-	return fd;
-}
-
-static void direct_session_close(struct wlr_session *base, int fd) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	int ev;
-	struct drm_version dv = {0};
-	if (ioctl(fd, DRM_IOCTL_VERSION, &dv) == 0) {
-		direct_ipc_dropmaster(session->sock, fd);
-	} else if (ioctl(fd, EVIOCGVERSION, &ev) == 0) {
-		ioctl(fd, EVIOCREVOKE, 0);
-	}
-
-	close(fd);
-}
-
-static bool direct_change_vt(struct wlr_session *base, unsigned vt) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	// Only seat0 has VTs associated with it
-	if (strcmp(session->base.seat, "seat0") != 0) {
-		return true;
-	}
-
-	return ioctl(session->tty_fd, VT_ACTIVATE, (int)vt) == 0;
-}
-
-static void direct_session_destroy(struct wlr_session *base) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	if (strcmp(session->base.seat, "seat0") == 0) {
-		struct vt_mode mode = {
-			.mode = VT_AUTO,
-		};
-
-		errno = 0;
-
-		ioctl(session->tty_fd, KDSKBMODE, session->old_kbmode);
-		ioctl(session->tty_fd, KDSETMODE, KD_TEXT);
-		ioctl(session->tty_fd, VT_SETMODE, &mode);
-
-		ioctl(session->tty_fd, VT_ACTIVATE, session->old_tty);
-
-		if (errno) {
-			wlr_log(WLR_ERROR, "Failed to restore tty");
-		}
-
-		wl_event_source_remove(session->vt_source);
-		close(session->tty_fd);
-	}
-
-	direct_ipc_finish(session->sock, session->child);
-	close(session->sock);
-
-	free(session);
-}
-
-static int vt_handler(int signo, void *data) {
-	struct direct_session *session = data;
-	struct drm_version dv = {0};
-	struct wlr_device *dev;
-
-	if (session->base.active) {
-		session->base.active = false;
-		wlr_signal_emit_safe(&session->base.events.active, NULL);
-
-		wl_list_for_each(dev, &session->base.devices, link) {
-			if (ioctl(dev->fd, DRM_IOCTL_VERSION, &dv) == 0) {
-				direct_ipc_dropmaster(session->sock, dev->fd);
-			}
-		}
-
-		ioctl(session->tty_fd, VT_RELDISP, 1);
-	} else {
-		ioctl(session->tty_fd, VT_RELDISP, VT_ACKACQ);
-
-		wl_list_for_each(dev, &session->base.devices, link) {
-			if (ioctl(dev->fd, DRM_IOCTL_VERSION, &dv) == 0) {
-				direct_ipc_setmaster(session->sock, dev->fd);
-			}
-		}
-
-		session->base.active = true;
-		wlr_signal_emit_safe(&session->base.events.active, NULL);
-	}
-
-	return 1;
-}
-
-static bool get_tty_path(int tty, char path[static 11], size_t len) {
-	assert(tty > 0);
-
-	const char prefix[] = "/dev/ttyv";
-	static_assert(sizeof(prefix) + 1 <= 11, "TTY path prefix is too long");
-
-	const size_t prefix_len = sizeof(prefix) - 1;
-	strcpy(path, prefix);
-
-	size_t offset = prefix_len;
-	const int num = tty - 1;
-	if (num == 0) {
-		path[offset++] = '0';
-		path[offset++] = '\0';
-		return true;
-	}
-
-	const int base = 32;
-	for (int remaning = num; remaning > 0; remaning /= base, offset++) {
-		// Return early if the buffer is too small.
-		if (offset + 1 >= len) {
-			return false;
-		}
-
-		const int value = remaning % base;
-		if (value >= 10) {
-			path[offset] = 'a' + value - 10;
-		} else {
-			path[offset] = '0' + value;
-		}
-	}
-
-	const size_t num_len = offset - prefix_len;
-	for (size_t i = 0; i < num_len / 2; i++) {
-		const size_t p1 = prefix_len + i;
-		const size_t p2 = offset - 1 - i;
-		const char tmp = path[p1];
-		path[p1] = path[p2];
-		path[p2] = tmp;
-	}
-
-	path[offset++] = '\0';
-	return true;
-}
-
-static bool setup_tty(struct direct_session *session, struct wl_display *display) {
-	int fd = -1, tty = -1, tty0_fd = -1, old_tty = 1;
-	if ((tty0_fd = open("/dev/ttyv0", O_RDWR | O_CLOEXEC)) < 0) {
-		wlr_log_errno(WLR_ERROR, "Could not open /dev/ttyv0 to find a free vt");
-		goto error;
-	}
-	if (ioctl(tty0_fd, VT_GETACTIVE, &old_tty) != 0) {
-		wlr_log_errno(WLR_ERROR, "Could not get active vt");
-		goto error;
-	}
-	if (ioctl(tty0_fd, VT_OPENQRY, &tty) != 0) {
-		wlr_log_errno(WLR_ERROR, "Could not find a free vt");
-		goto error;
-	}
-	close(tty0_fd);
-	char tty_path[64];
-	if (!get_tty_path(tty, tty_path, sizeof(tty_path))) {
-		wlr_log(WLR_ERROR, "Could not get tty %d path", tty);
-		goto error;
-	}
-	wlr_log(WLR_INFO, "Using tty %s", tty_path);
-	fd = open(tty_path, O_RDWR | O_NOCTTY | O_CLOEXEC);
-
-	if (fd == -1) {
-		wlr_log_errno(WLR_ERROR, "Cannot open tty");
-		return false;
-	}
-
-	ioctl(fd, VT_ACTIVATE, tty);
-	ioctl(fd, VT_WAITACTIVE, tty);
-
-	int old_kbmode;
-	if (ioctl(fd, KDGKBMODE, &old_kbmode)) {
-		wlr_log_errno(WLR_ERROR, "Failed to read tty %d keyboard mode", tty);
-		goto error;
-	}
-
-	if (ioctl(fd, KDSKBMODE, K_CODE)) {
-		wlr_log_errno(WLR_ERROR,
-			"Failed to set keyboard mode K_CODE on tty %d", tty);
-		goto error;
-	}
-
-	if (ioctl(fd, KDSETMODE, KD_GRAPHICS)) {
-		wlr_log_errno(WLR_ERROR, "Failed to set graphics mode on tty %d", tty);
-		goto error;
-	}
-
-	struct vt_mode mode = {
-		.mode = VT_PROCESS,
-		.relsig = SIGUSR2,
-		.acqsig = SIGUSR2,
-		.frsig = SIGIO, // has to be set
-	};
-
-	if (ioctl(fd, VT_SETMODE, &mode) < 0) {
-		wlr_log(WLR_ERROR, "Failed to take control of tty %d", tty);
-		goto error;
-	}
-
-	struct wl_event_loop *loop = wl_display_get_event_loop(display);
-	session->vt_source = wl_event_loop_add_signal(loop, SIGUSR2,
-		vt_handler, session);
-	if (!session->vt_source) {
-		goto error;
-	}
-
-	session->base.vtnr = tty;
-	session->tty_fd = fd;
-	session->old_tty = old_tty;
-	session->old_kbmode = old_kbmode;
-
-	return true;
-
-error:
-	// In case we could not get the last active one, drop back to tty 1,
-	// better than hanging in a useless blank console. Otherwise activate the
-	// last active.
-	ioctl(fd, VT_ACTIVATE, old_tty);
-	close(fd);
-	return false;
-}
-
-static struct wlr_session *direct_session_create(struct wl_display *disp) {
-	struct direct_session *session = calloc(1, sizeof(*session));
-	if (!session) {
-		wlr_log_errno(WLR_ERROR, "Allocation failed");
-		return NULL;
-	}
-
-	session_init(&session->base);
-	session->sock = direct_ipc_init(&session->child);
-	if (session->sock == -1) {
-		goto error_session;
-	}
-
-	const char *seat = getenv("XDG_SEAT");
-	if (!seat) {
-		seat = "seat0";
-	}
-
-	if (strcmp(seat, "seat0") == 0) {
-		if (!setup_tty(session, disp)) {
-			goto error_ipc;
-		}
-	} else {
-		session->base.vtnr = 0;
-		session->tty_fd = -1;
-	}
-
-	wlr_log(WLR_INFO, "Successfully loaded direct session");
-
-	snprintf(session->base.seat, sizeof(session->base.seat), "%s", seat);
-	session->base.impl = &session_direct;
-	session->base.active = true;
-	return &session->base;
-
-error_ipc:
-	direct_ipc_finish(session->sock, session->child);
-	close(session->sock);
-error_session:
-	free(session);
-	return NULL;
-}
-
-const struct session_impl session_direct = {
-	.create = direct_session_create,
-	.destroy = direct_session_destroy,
-	.open = direct_session_open,
-	.close = direct_session_close,
-	.change_vt = direct_change_vt,
-};
diff --git a/backend/session/direct-ipc.c b/backend/session/direct-ipc.c
deleted file mode 100644
index d98d4e66..00000000
--- a/backend/session/direct-ipc.c
+++ /dev/null
@@ -1,237 +0,0 @@
-#define _POSIX_C_SOURCE 200809L
-#ifdef __FreeBSD__
-#define __BSD_VISIBLE 1
-#include <linux/input.h>
-#endif
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <wlr/config.h>
-#include <wlr/util/log.h>
-#include <xf86drm.h>
-#ifdef __linux__
-#include <sys/sysmacros.h>
-#include <linux/major.h>
-#endif
-#include "backend/session/direct-ipc.h"
-
-enum { DRM_MAJOR = 226 };
-
-static void send_msg(int sock, int fd, void *buf, size_t buf_len) {
-	char control[CMSG_SPACE(sizeof(fd))] = {0};
-	struct iovec iovec = { .iov_base = buf, .iov_len = buf_len };
-	struct msghdr msghdr = {0};
-
-	if (buf) {
-		msghdr.msg_iov = &iovec;
-		msghdr.msg_iovlen = 1;
-	}
-
-	if (fd >= 0) {
-		msghdr.msg_control = &control;
-		msghdr.msg_controllen = sizeof(control);
-
-		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msghdr);
-		*cmsg = (struct cmsghdr) {
-			.cmsg_level = SOL_SOCKET,
-			.cmsg_type = SCM_RIGHTS,
-			.cmsg_len = CMSG_LEN(sizeof(fd)),
-		};
-		memcpy(CMSG_DATA(cmsg), &fd, sizeof(fd));
-	}
-
-	ssize_t ret;
-	do {
-		ret = sendmsg(sock, &msghdr, 0);
-	} while (ret < 0 && errno == EINTR);
-}
-
-static ssize_t recv_msg(int sock, int *fd_out, void *buf, size_t buf_len) {
-	char control[CMSG_SPACE(sizeof(*fd_out))] = {0};
-	struct iovec iovec = { .iov_base = buf, .iov_len = buf_len };
-	struct msghdr msghdr = {0};
-
-	if (buf) {
-		msghdr.msg_iov = &iovec;
-		msghdr.msg_iovlen = 1;
-	}
-
-	if (fd_out) {
-		msghdr.msg_control = &control;
-		msghdr.msg_controllen = sizeof(control);
-	}
-
-	ssize_t ret;
-	do {
-		ret = recvmsg(sock, &msghdr, MSG_CMSG_CLOEXEC);
-	} while (ret < 0 && errno == EINTR);
-
-	if (fd_out) {
-		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msghdr);
-		if (cmsg) {
-			memcpy(fd_out, CMSG_DATA(cmsg), sizeof(*fd_out));
-		} else {
-			*fd_out = -1;
-		}
-	}
-
-	return ret;
-}
-
-enum msg_type {
-	MSG_OPEN,
-	MSG_SETMASTER,
-	MSG_DROPMASTER,
-	MSG_END,
-};
-
-struct msg {
-	enum msg_type type;
-	char path[256];
-};
-
-static void communicate(int sock) {
-	struct msg msg;
-	int drm_fd = -1;
-	bool running = true;
-
-	while (running && recv_msg(sock, &drm_fd, &msg, sizeof(msg)) > 0) {
-		switch (msg.type) {
-		case MSG_OPEN:
-			errno = 0;
-
-			// These are the same flags that logind opens files with
-			int fd = open(msg.path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
-			int ret = errno;
-			if (fd == -1) {
-				goto error;
-			}
-
-#ifndef __FreeBSD__
-			struct stat st;
-			if (fstat(fd, &st) < 0) {
-				ret = errno;
-				goto error;
-			}
-
-			uint32_t maj = major(st.st_rdev);
-			if (maj != INPUT_MAJOR && maj != DRM_MAJOR) {
-				ret = ENOTSUP;
-				goto error;
-			}
-
-			if (maj == DRM_MAJOR && drmSetMaster(fd)) {
-				ret = errno;
-			}
-#else
-			int ev;
-			struct drm_version dv = {0};
-			if (ioctl(fd, EVIOCGVERSION, &ev) == -1 &&
-					ioctl(fd, DRM_IOCTL_VERSION, &dv) == -1) {
-				ret = ENOTSUP;
-				goto error;
-			}
-
-			if (dv.version_major != 0 && drmSetMaster(fd)) {
-				ret = errno;
-			}
-#endif
-
-error:
-			send_msg(sock, ret ? -1 : fd, &ret, sizeof(ret));
-			if (fd >= 0) {
-				close(fd);
-			}
-
-			break;
-
-		case MSG_SETMASTER:
-			drmSetMaster(drm_fd);
-			close(drm_fd);
-			send_msg(sock, -1, NULL, 0);
-			break;
-
-		case MSG_DROPMASTER:
-			drmDropMaster(drm_fd);
-			close(drm_fd);
-			send_msg(sock, -1, NULL, 0);
-			break;
-
-		case MSG_END:
-			running = false;
-			send_msg(sock, -1, NULL, 0);
-			break;
-		}
-	}
-
-	close(sock);
-}
-
-int direct_ipc_open(int sock, const char *path) {
-	struct msg msg = { .type = MSG_OPEN };
-	snprintf(msg.path, sizeof(msg.path), "%s", path);
-
-	send_msg(sock, -1, &msg, sizeof(msg));
-
-	int fd, err, ret;
-	int retry = 0;
-	do {
-		ret = recv_msg(sock, &fd, &err, sizeof(err));
-	} while (ret == 0 && retry++ < 3);
-
-	return err ? -err : fd;
-}
-
-void direct_ipc_setmaster(int sock, int fd) {
-	struct msg msg = { .type = MSG_SETMASTER };
-
-	send_msg(sock, fd, &msg, sizeof(msg));
-	recv_msg(sock, NULL, NULL, 0);
-}
-
-void direct_ipc_dropmaster(int sock, int fd) {
-	struct msg msg = { .type = MSG_DROPMASTER };
-
-	send_msg(sock, fd, &msg, sizeof(msg));
-	recv_msg(sock, NULL, NULL, 0);
-}
-
-void direct_ipc_finish(int sock, pid_t pid) {
-	struct msg msg = { .type = MSG_END };
-
-	send_msg(sock, -1, &msg, sizeof(msg));
-	recv_msg(sock, NULL, NULL, 0);
-
-	waitpid(pid, NULL, 0);
-}
-
-int direct_ipc_init(pid_t *pid_out) {
-	int sock[2];
-	if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sock) < 0) {
-		wlr_log_errno(WLR_ERROR, "Failed to create socket pair");
-		return -1;
-	}
-
-	pid_t pid = fork();
-	if (pid < 0) {
-		wlr_log_errno(WLR_ERROR, "Fork failed");
-		close(sock[0]);
-		close(sock[1]);
-		return -1;
-	} else if (pid == 0) {
-		close(sock[0]);
-		communicate(sock[1]);
-		_Exit(0);
-	}
-
-	close(sock[1]);
-	*pid_out = pid;
-	return sock[0];
-}
diff --git a/backend/session/direct.c b/backend/session/direct.c
deleted file mode 100644
index b6d9f06a..00000000
--- a/backend/session/direct.c
+++ /dev/null
@@ -1,291 +0,0 @@
-#define _POSIX_C_SOURCE 200809L
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/input.h>
-#include <linux/kd.h>
-#include <linux/major.h>
-#include <linux/vt.h>
-#include <signal.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-#include <unistd.h>
-#include <wayland-server-core.h>
-#include <wlr/backend/session/interface.h>
-#include <wlr/util/log.h>
-#include "backend/session/direct-ipc.h"
-#include "backend/session/session.h"
-#include "util/signal.h"
-
-enum { DRM_MAJOR = 226 };
-
-const struct session_impl session_direct;
-
-struct direct_session {
-	struct wlr_session base;
-	int tty_fd;
-	int old_kbmode;
-	int sock;
-	pid_t child;
-
-	struct wl_event_source *vt_source;
-};
-
-static struct direct_session *direct_session_from_session(
-		struct wlr_session *base) {
-	assert(base->impl == &session_direct);
-	return (struct direct_session *)base;
-}
-
-static int direct_session_open(struct wlr_session *base, const char *path) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	int fd = direct_ipc_open(session->sock, path);
-	if (fd < 0) {
-		wlr_log(WLR_ERROR, "Failed to open %s: %s%s", path, strerror(-fd),
-			fd == -EINVAL ? "; is another display server running?" : "");
-		return fd;
-	}
-
-	struct stat st;
-	if (fstat(fd, &st) < 0) {
-		close(fd);
-		return -errno;
-	}
-
-	if (major(st.st_rdev) == DRM_MAJOR) {
-		direct_ipc_setmaster(session->sock, fd);
-	}
-
-	return fd;
-}
-
-static void direct_session_close(struct wlr_session *base, int fd) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	struct stat st;
-	if (fstat(fd, &st) < 0) {
-		wlr_log_errno(WLR_ERROR, "Stat failed");
-		close(fd);
-		return;
-	}
-
-	if (major(st.st_rdev) == DRM_MAJOR) {
-		direct_ipc_dropmaster(session->sock, fd);
-	} else if (major(st.st_rdev) == INPUT_MAJOR) {
-		ioctl(fd, EVIOCREVOKE, 0);
-	}
-
-	close(fd);
-}
-
-static bool direct_change_vt(struct wlr_session *base, unsigned vt) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	// Only seat0 has VTs associated with it
-	if (strcmp(session->base.seat, "seat0") != 0) {
-		return true;
-	}
-
-	return ioctl(session->tty_fd, VT_ACTIVATE, (int)vt) == 0;
-}
-
-static void direct_session_destroy(struct wlr_session *base) {
-	struct direct_session *session = direct_session_from_session(base);
-
-	if (strcmp(session->base.seat, "seat0") == 0) {
-		struct vt_mode mode = {
-			.mode = VT_AUTO,
-		};
-		errno = 0;
-
-		ioctl(session->tty_fd, KDSKBMODE, session->old_kbmode);
-		ioctl(session->tty_fd, KDSETMODE, KD_TEXT);
-		ioctl(session->tty_fd, VT_SETMODE, &mode);
-
-		if (errno) {
-			wlr_log(WLR_ERROR, "Failed to restore tty");
-		}
-
-		wl_event_source_remove(session->vt_source);
-		close(session->tty_fd);
-	}
-
-	direct_ipc_finish(session->sock, session->child);
-	close(session->sock);
-
-	free(session);
-}
-
-static int vt_handler(int signo, void *data) {
-	struct direct_session *session = data;
-
-	if (session->base.active) {
-		session->base.active = false;
-		wlr_signal_emit_safe(&session->base.events.active, NULL);
-
-		struct wlr_device *dev;
-		wl_list_for_each(dev, &session->base.devices, link) {
-			if (major(dev->dev) == DRM_MAJOR) {
-				direct_ipc_dropmaster(session->sock,
-					dev->fd);
-			}
-		}
-
-		ioctl(session->tty_fd, VT_RELDISP, 1);
-	} else {
-		ioctl(session->tty_fd, VT_RELDISP, VT_ACKACQ);
-
-		struct wlr_device *dev;
-		wl_list_for_each(dev, &session->base.devices, link) {
-			if (major(dev->dev) == DRM_MAJOR) {
-				direct_ipc_setmaster(session->sock,
-					dev->fd);
-			}
-		}
-
-		session->base.active = true;
-		wlr_signal_emit_safe(&session->base.events.active, NULL);
-	}
-
-	return 1;
-}
-
-static bool setup_tty(struct direct_session *session, struct wl_display *display) {
-
-	bool default_tty = false;
-
-	const char *tty_path = getenv("WLR_DIRECT_TTY");
-
-	if (!tty_path) {
-		tty_path = "/dev/tty";
-		default_tty = true;
-	}
-
-	int fd = open(tty_path, O_RDWR | O_CLOEXEC);
-	if (fd == -1) {
-		wlr_log_errno(WLR_ERROR, "Cannot open %s", tty_path);
-		return false;
-	}
-
-	struct vt_stat vt_stat;
-	if (ioctl(fd, VT_GETSTATE, &vt_stat)) {
-		wlr_log_errno(WLR_ERROR, "Could not get current tty number");
-		goto error;
-	}
-
-	int tty = vt_stat.v_active;
-	int ret, kd_mode, old_kbmode;
-
-	ret = ioctl(fd, KDGETMODE, &kd_mode);
-	if (ret) {
-		wlr_log_errno(WLR_ERROR, "Failed to get tty mode");
-		goto error;
-	}
-
-	if (default_tty && kd_mode != KD_TEXT) {
-		wlr_log(WLR_ERROR,
-			"tty already in graphics mode; is another display server running?");
-		goto error;
-	}
-
-	ioctl(fd, VT_ACTIVATE, tty);
-	ioctl(fd, VT_WAITACTIVE, tty);
-
-	if (ioctl(fd, KDGKBMODE, &old_kbmode)) {
-		wlr_log_errno(WLR_ERROR, "Failed to read keyboard mode");
-		goto error;
-	}
-
-	if (ioctl(fd, KDSKBMODE, K_OFF)) {
-		wlr_log_errno(WLR_ERROR, "Failed to set keyboard mode");
-		goto error;
-	}
-
-	if (ioctl(fd, KDSETMODE, KD_GRAPHICS)) {
-		wlr_log_errno(WLR_ERROR, "Failed to set graphics mode on tty");
-		goto error;
-	}
-
-	struct vt_mode mode = {
-		.mode = VT_PROCESS,
-		.relsig = SIGUSR2,
-		.acqsig = SIGUSR2,
-	};
-
-	if (ioctl(fd, VT_SETMODE, &mode) < 0) {
-		wlr_log(WLR_ERROR, "Failed to take control of tty");
-		goto error;
-	}
-
-	struct wl_event_loop *loop = wl_display_get_event_loop(display);
-	session->vt_source = wl_event_loop_add_signal(loop, SIGUSR2,
-		vt_handler, session);
-	if (!session->vt_source) {
-		goto error;
-	}
-
-	session->base.vtnr = tty;
-	session->tty_fd = fd;
-	session->old_kbmode = old_kbmode;
-
-	return true;
-
-error:
-	close(fd);
-	return false;
-}
-
-static struct wlr_session *direct_session_create(struct wl_display *disp) {
-	struct direct_session *session = calloc(1, sizeof(*session));
-	if (!session) {
-		wlr_log_errno(WLR_ERROR, "Allocation failed");
-		return NULL;
-	}
-
-	session_init(&session->base);
-	session->sock = direct_ipc_init(&session->child);
-	if (session->sock == -1) {
-		goto error_session;
-	}
-
-	const char *seat = getenv("XDG_SEAT");
-	if (!seat) {
-		seat = "seat0";
-	}
-
-	if (strcmp(seat, "seat0") == 0) {
-		if (!setup_tty(session, disp)) {
-			goto error_ipc;
-		}
-	} else {
-		session->base.vtnr = 0;
-		session->tty_fd = -1;
-	}
-
-	snprintf(session->base.seat, sizeof(session->base.seat), "%s", seat);
-	session->base.impl = &session_direct;
-	session->base.active = true;
-
-	wlr_log(WLR_INFO, "Successfully loaded direct session");
-	return &session->base;
-
-error_ipc:
-	direct_ipc_finish(session->sock, session->child);
-	close(session->sock);
-error_session:
-	free(session);
-	return NULL;
-}
-
-const struct session_impl session_direct = {
-	.create = direct_session_create,
-	.destroy = direct_session_destroy,
-	.open = direct_session_open,
-	.close = direct_session_close,
-	.change_vt = direct_change_vt,
-};
diff --git a/backend/session/meson.build b/backend/session/meson.build
index 2724d44f..17b0d42e 100644
--- a/backend/session/meson.build
+++ b/backend/session/meson.build
@@ -5,16 +5,9 @@ libseat = dependency('libseat',
 )
 
 wlr_files += files(
-	'direct-ipc.c',
 	'noop.c',
 	'session.c',
 	'libseat.c'
 )
 
-if host_machine.system().startswith('freebsd')
-	wlr_files += files('direct-freebsd.c')
-else
-	wlr_files += files('direct.c')
-endif
-
 wlr_deps += libseat
diff --git a/backend/session/session.c b/backend/session/session.c
index b0c407aa..67ee1e1f 100644
--- a/backend/session/session.c
+++ b/backend/session/session.c
@@ -21,12 +21,10 @@
 #define WAIT_GPU_TIMEOUT 10000 // ms
 
 extern const struct session_impl session_libseat;
-extern const struct session_impl session_direct;
 extern const struct session_impl session_noop;
 
 static const struct session_impl *const impls[] = {
 	&session_libseat,
-	&session_direct,
 	NULL,
 };
 
@@ -111,8 +109,6 @@ struct wlr_session *wlr_session_create(struct wl_display *disp) {
 	if (env_wlr_session) {
 		if (strcmp(env_wlr_session, "libseat") == 0) {
 			session = session_libseat.create(disp);
-		} else if (strcmp(env_wlr_session, "direct") == 0) {
-			session = session_direct.create(disp);
 		} else if (strcmp(env_wlr_session, "noop") == 0) {
 			session = session_noop.create(disp);
 		} else {
diff --git a/docs/env_vars.md b/docs/env_vars.md
index 0a6fd896..34b8b823 100644
--- a/docs/env_vars.md
+++ b/docs/env_vars.md
@@ -7,7 +7,7 @@ wlroots reads these environment variables
 * *WLR_NO_HARDWARE_CURSORS*: set to 1 to use software cursors instead of
   hardware cursors
 * *WLR_SESSION*: specifies the `wlr_session` to be used (available sessions:
-  libseat, direct)
+  libseat)
 * *WLR_DIRECT_TTY*: specifies the tty to be used (instead of using /dev/tty)
 * *WLR_XWAYLAND*: specifies the path to an Xwayland binary to be used (instead
   of following shell search semantics for "Xwayland")
diff --git a/include/backend/session/direct-ipc.h b/include/backend/session/direct-ipc.h
deleted file mode 100644
index c660b58f..00000000
--- a/include/backend/session/direct-ipc.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef BACKEND_SESSION_DIRECT_IPC_H
-#define BACKEND_SESSION_DIRECT_IPC_H
-
-#include <sys/types.h>
-
-int direct_ipc_open(int sock, const char *path);
-void direct_ipc_setmaster(int sock, int fd);
-void direct_ipc_dropmaster(int sock, int fd);
-void direct_ipc_finish(int sock, pid_t pid);
-int direct_ipc_init(pid_t *pid_out);
-
-#endif