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author | marha <marha@users.sourceforge.net> | 2014-03-09 22:56:02 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2014-03-09 22:56:02 +0100 |
commit | 2112b7dec49833ba872bd3ebcd7288930fec0796 (patch) | |
tree | 407c80c9a70f590af2d4c3e5c14678827e189331 /xorg-server/hw/xfree86/os-support/linux/systemd-logind.c | |
parent | 8badbdef38ce843dc443ddee219eda4040ef2cd5 (diff) | |
parent | 3dd4b6420f686b0147d5b8136268cc63196e253b (diff) | |
download | vcxsrv-2112b7dec49833ba872bd3ebcd7288930fec0796.tar.gz vcxsrv-2112b7dec49833ba872bd3ebcd7288930fec0796.tar.bz2 vcxsrv-2112b7dec49833ba872bd3ebcd7288930fec0796.zip |
Merge remote-tracking branch 'origin/released'
* origin/released:
fontconfig mesa xserver git update 9 Mar 2014
Conflicts:
mesalib/src/mapi/glapi/glapi.h
xorg-server/hw/kdrive/ephyr/hostx.c
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/linux/systemd-logind.c')
-rw-r--r-- | xorg-server/hw/xfree86/os-support/linux/systemd-logind.c | 532 |
1 files changed, 532 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/linux/systemd-logind.c b/xorg-server/hw/xfree86/os-support/linux/systemd-logind.c new file mode 100644 index 000000000..abb8e44d9 --- /dev/null +++ b/xorg-server/hw/xfree86/os-support/linux/systemd-logind.c @@ -0,0 +1,532 @@ +/* + * Copyright © 2013 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Hans de Goede <hdegoede@redhat.com> + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <dbus/dbus.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> + +#include "os.h" +#include "dbus-core.h" +#include "xf86.h" +#include "xf86platformBus.h" +#include "xf86Xinput.h" + +#include "systemd-logind.h" + +#define DBUS_TIMEOUT 500 /* Wait max 0.5 seconds */ + +struct systemd_logind_info { + DBusConnection *conn; + char *session; + Bool active; + Bool vt_active; +}; + +static struct systemd_logind_info logind_info; + +int +systemd_logind_take_fd(int _major, int _minor, const char *path, + Bool *paused_ret) +{ + struct systemd_logind_info *info = &logind_info; + DBusError error; + DBusMessage *msg = NULL; + DBusMessage *reply = NULL; + dbus_int32_t major = _major; + dbus_int32_t minor = _minor; + dbus_bool_t paused; + int fd = -1; + + if (!info->session || major == 0) + return -1; + + /* logind does not support mouse devs (with evdev we don't need them) */ + if (strstr(path, "mouse")) + return -1; + + dbus_error_init(&error); + + msg = dbus_message_new_method_call("org.freedesktop.login1", info->session, + "org.freedesktop.login1.Session", "TakeDevice"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + if (!dbus_message_append_args(msg, DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(info->conn, msg, + DBUS_TIMEOUT, &error); + if (!reply) { + LogMessage(X_ERROR, "systemd-logind: failed to take device %s: %s\n", + path, error.message); + goto cleanup; + } + + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_UNIX_FD, &fd, + DBUS_TYPE_BOOLEAN, &paused, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: TakeDevice %s: %s\n", + path, error.message); + goto cleanup; + } + + *paused_ret = paused; + + LogMessage(X_INFO, "systemd-logind: got fd for %s %u:%u fd %d paused %d\n", + path, major, minor, fd, paused); + +cleanup: + if (msg) + dbus_message_unref(msg); + if (reply) + dbus_message_unref(reply); + dbus_error_free(&error); + + return fd; +} + +void +systemd_logind_release_fd(int _major, int _minor) +{ + struct systemd_logind_info *info = &logind_info; + DBusError error; + DBusMessage *msg = NULL; + DBusMessage *reply = NULL; + dbus_int32_t major = _major; + dbus_int32_t minor = _minor; + + if (!info->session || major == 0) + return; + + dbus_error_init(&error); + + msg = dbus_message_new_method_call("org.freedesktop.login1", info->session, + "org.freedesktop.login1.Session", "ReleaseDevice"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + if (!dbus_message_append_args(msg, DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(info->conn, msg, + DBUS_TIMEOUT, &error); + if (!reply) + LogMessage(X_ERROR, "systemd-logind: failed to release device: %s\n", + error.message); + +cleanup: + if (msg) + dbus_message_unref(msg); + if (reply) + dbus_message_unref(reply); + dbus_error_free(&error); +} + +int +systemd_logind_controls_session(void) +{ + return logind_info.session ? 1 : 0; +} + +void +systemd_logind_vtenter(void) +{ + struct systemd_logind_info *info = &logind_info; + InputInfoPtr pInfo; + int i; + + if (!info->session) + return; /* Not using systemd-logind */ + + if (!info->active) + return; /* Session not active */ + + if (info->vt_active) + return; /* Already did vtenter */ + + for (i = 0; i < xf86_num_platform_devices; i++) { + if (xf86_platform_devices[i].flags & XF86_PDEV_PAUSED) + break; + } + if (i != xf86_num_platform_devices) + return; /* Some drm nodes are still paused wait for resume */ + + xf86VTEnter(); + info->vt_active = TRUE; + + /* Activate any input devices which were resumed before the drm nodes */ + for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) + if ((pInfo->flags & XI86_SERVER_FD) && pInfo->fd != -1) + xf86EnableInputDeviceForVTSwitch(pInfo); + + /* Do delayed input probing, this must be done after the above enabling */ + xf86InputEnableVTProbe(); +} + +static InputInfoPtr +systemd_logind_find_info_ptr_by_devnum(int major, int minor) +{ + InputInfoPtr pInfo; + + for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) + if (pInfo->major == major && pInfo->minor == minor && + (pInfo->flags & XI86_SERVER_FD)) + return pInfo; + + return NULL; +} + +static void +systemd_logind_ack_pause(struct systemd_logind_info *info, + dbus_int32_t minor, dbus_int32_t major) +{ + DBusError error; + DBusMessage *msg = NULL; + DBusMessage *reply = NULL; + + dbus_error_init(&error); + + msg = dbus_message_new_method_call("org.freedesktop.login1", info->session, + "org.freedesktop.login1.Session", "PauseDeviceComplete"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + if (!dbus_message_append_args(msg, DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(info->conn, msg, + DBUS_TIMEOUT, &error); + if (!reply) + LogMessage(X_ERROR, "systemd-logind: failed to ack pause: %s\n", + error.message); + +cleanup: + if (msg) + dbus_message_unref(msg); + if (reply) + dbus_message_unref(reply); + dbus_error_free(&error); +} + +static DBusHandlerResult +message_filter(DBusConnection * connection, DBusMessage * message, void *data) +{ + struct systemd_logind_info *info = data; + struct xf86_platform_device *pdev = NULL; + InputInfoPtr pInfo = NULL; + int ack = 0, pause = 0, fd = -1; + DBusError error; + dbus_int32_t major, minor; + char *pause_str; + + if (strcmp(dbus_message_get_path(message), info->session) != 0) + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + + dbus_error_init(&error); + + if (dbus_message_is_signal(message, "org.freedesktop.login1.Session", + "PauseDevice")) { + if (!dbus_message_get_args(message, &error, + DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_STRING, &pause_str, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: PauseDevice: %s\n", + error.message); + dbus_error_free(&error); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + + if (strcmp(pause_str, "pause") == 0) { + pause = 1; + ack = 1; + } + else if (strcmp(pause_str, "force") == 0) { + pause = 1; + } + else if (strcmp(pause_str, "gone") == 0) { + /* Device removal is handled through udev */ + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + else { + LogMessage(X_WARNING, "systemd-logind: unknown pause type: %s\n", + pause_str); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + } + else if (dbus_message_is_signal(message, "org.freedesktop.login1.Session", + "ResumeDevice")) { + if (!dbus_message_get_args(message, &error, + DBUS_TYPE_UINT32, &major, + DBUS_TYPE_UINT32, &minor, + DBUS_TYPE_UNIX_FD, &fd, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: ResumeDevice: %s\n", + error.message); + dbus_error_free(&error); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + } else + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + + LogMessage(X_INFO, "systemd-logind: got %s for %u:%u\n", + pause ? "pause" : "resume", major, minor); + + pdev = xf86_find_platform_device_by_devnum(major, minor); + if (!pdev) + pInfo = systemd_logind_find_info_ptr_by_devnum(major, minor); + if (!pdev && !pInfo) { + LogMessage(X_WARNING, "systemd-logind: could not find dev %u:%u\n", + major, minor); + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; + } + + if (pause) { + /* Our VT_PROCESS usage guarantees we've already given up the vt */ + info->active = info->vt_active = FALSE; + /* Note the actual vtleave has already been handled by xf86Events.c */ + if (pdev) + pdev->flags |= XF86_PDEV_PAUSED; + else { + close(pInfo->fd); + pInfo->fd = -1; + pInfo->options = xf86ReplaceIntOption(pInfo->options, "fd", -1); + } + if (ack) + systemd_logind_ack_pause(info, major, minor); + } + else { + /* info->vt_active gets set by systemd_logind_vtenter() */ + info->active = TRUE; + + if (pdev) { + pdev->flags &= ~XF86_PDEV_PAUSED; + systemd_logind_vtenter(); + } + else { + pInfo->fd = fd; + pInfo->options = xf86ReplaceIntOption(pInfo->options, "fd", fd); + if (info->vt_active) + xf86EnableInputDeviceForVTSwitch(pInfo); + } + } + return DBUS_HANDLER_RESULT_HANDLED; +} + +static void +connect_hook(DBusConnection *connection, void *data) +{ + struct systemd_logind_info *info = data; + DBusError error; + DBusMessage *msg = NULL; + DBusMessage *reply = NULL; + dbus_int32_t arg; + char *session = NULL; + + dbus_error_init(&error); + + msg = dbus_message_new_method_call("org.freedesktop.login1", + "/org/freedesktop/login1", "org.freedesktop.login1.Manager", + "GetSessionByPID"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + arg = getpid(); + if (!dbus_message_append_args(msg, DBUS_TYPE_UINT32, &arg, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(connection, msg, + DBUS_TIMEOUT, &error); + if (!reply) { + LogMessage(X_ERROR, "systemd-logind: failed to get session: %s\n", + error.message); + goto cleanup; + } + dbus_message_unref(msg); + + if (!dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &session, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: GetSessionByPID: %s\n", + error.message); + goto cleanup; + } + session = XNFstrdup(session); + + dbus_message_unref(reply); + reply = NULL; + + + msg = dbus_message_new_method_call("org.freedesktop.login1", + session, "org.freedesktop.login1.Session", "TakeControl"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + arg = FALSE; /* Don't forcibly take over over the session */ + if (!dbus_message_append_args(msg, DBUS_TYPE_BOOLEAN, &arg, + DBUS_TYPE_INVALID)) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(connection, msg, + DBUS_TIMEOUT, &error); + if (!reply) { + LogMessage(X_ERROR, "systemd-logind: TakeControl failed: %s\n", + error.message); + goto cleanup; + } + + /* + * HdG: This is not useful with systemd <= 208 since the signal only + * contains invalidated property names there, rather than property, val + * pairs as it should. Instead we just use the first resume / pause now. + */ +#if 0 + snprintf(match, sizeof(match), + "type='signal',sender='org.freedesktop.login1',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged',path='%s'", + session); + dbus_bus_add_match(connection, match, &error); + if (dbus_error_is_set(&error)) { + LogMessage(X_ERROR, "systemd-logind: could not add match: %s\n", + error.message); + goto cleanup; + } +#endif + + if (!dbus_connection_add_filter(connection, message_filter, info, NULL)) { + LogMessage(X_ERROR, "systemd-logind: could not add filter: %s\n", + error.message); + goto cleanup; + } + + LogMessage(X_INFO, "systemd-logind: took control of session %s\n", + session); + info->conn = connection; + info->session = session; + info->vt_active = info->active = TRUE; /* The server owns the vt during init */ + session = NULL; + +cleanup: + free(session); + if (msg) + dbus_message_unref(msg); + if (reply) + dbus_message_unref(reply); + dbus_error_free(&error); +} + +static void +systemd_logind_release_control(struct systemd_logind_info *info) +{ + DBusError error; + DBusMessage *msg = NULL; + DBusMessage *reply = NULL; + + dbus_error_init(&error); + + msg = dbus_message_new_method_call("org.freedesktop.login1", + info->session, "org.freedesktop.login1.Session", "ReleaseControl"); + if (!msg) { + LogMessage(X_ERROR, "systemd-logind: out of memory\n"); + goto cleanup; + } + + reply = dbus_connection_send_with_reply_and_block(info->conn, msg, + DBUS_TIMEOUT, &error); + if (!reply) { + LogMessage(X_ERROR, "systemd-logind: ReleaseControl failed: %s\n", + error.message); + goto cleanup; + } + +cleanup: + if (msg) + dbus_message_unref(msg); + if (reply) + dbus_message_unref(reply); + dbus_error_free(&error); +} + +static void +disconnect_hook(void *data) +{ + struct systemd_logind_info *info = data; + + free(info->session); + info->session = NULL; + info->conn = NULL; +} + +static struct dbus_core_hook core_hook = { + .connect = connect_hook, + .disconnect = disconnect_hook, + .data = &logind_info, +}; + +int +systemd_logind_init(void) +{ + return dbus_core_add_hook(&core_hook); +} + +void +systemd_logind_fini(void) +{ + if (logind_info.session) + systemd_logind_release_control(&logind_info); + + dbus_core_remove_hook(&core_hook); +} |