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-rw-r--r--src/.gitignore1
-rw-r--r--src/ask-password-agent.vala250
-rw-r--r--src/ask-password.c352
-rw-r--r--src/main.c2
-rw-r--r--src/org.freedesktop.systemd1.policy30
-rw-r--r--src/reply-password.c108
-rw-r--r--src/systemadm.vala2
7 files changed, 744 insertions, 1 deletions
diff --git a/src/.gitignore b/src/.gitignore
index 1841bf597d..389f26daa2 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -1,2 +1,3 @@
+ask-password-agent.c
systemd-interfaces.c
systemadm.c
diff --git a/src/ask-password-agent.vala b/src/ask-password-agent.vala
new file mode 100644
index 0000000000..5355bb4694
--- /dev/null
+++ b/src/ask-password-agent.vala
@@ -0,0 +1,250 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+using Gtk;
+using GLib;
+using DBus;
+using Linux;
+using Posix;
+
+[CCode (cheader_filename = "time.h")]
+extern int clock_gettime(int id, out timespec ts);
+
+public class PasswordDialog : Dialog {
+
+ public Entry entry;
+
+ public PasswordDialog(string message, string icon) {
+ set_title("System Password");
+ set_has_separator(false);
+ set_border_width(8);
+ set_default_response(ResponseType.OK);
+ set_icon_name(icon);
+
+ add_button(STOCK_CANCEL, ResponseType.CANCEL);
+ add_button(STOCK_OK, ResponseType.OK);
+
+ Container content = (Container) get_content_area();
+
+ Box hbox = new HBox(false, 16);
+ hbox.set_border_width(8);
+ content.add(hbox);
+
+ Image image = new Image.from_icon_name(icon, IconSize.DIALOG);
+ hbox.pack_start(image, false, false);
+
+ Box vbox = new VBox(false, 8);
+ hbox.pack_start(vbox, true, true);
+
+ Label label = new Label(message);
+ vbox.pack_start(label, false, false);
+
+ entry = new Entry();
+ entry.set_visibility(false);
+ entry.set_activates_default(true);
+ vbox.pack_start(entry, false, false);
+
+ entry.activate.connect(on_entry_activated);
+
+ show_all();
+ }
+
+ public void on_entry_activated() {
+ response(ResponseType.OK);
+ }
+}
+
+public class MyStatusIcon : StatusIcon {
+
+ File directory;
+ File current;
+ FileMonitor file_monitor;
+
+ string message;
+ string icon;
+ string socket;
+
+ PasswordDialog password_dialog;
+
+ public MyStatusIcon() throws GLib.Error {
+ GLib.Object(icon_name : "dialog-password");
+ set_title("System Password Agent");
+
+ directory = File.new_for_path("/dev/.systemd/ask-password/");
+ file_monitor = directory.monitor_directory(0);
+ file_monitor.changed.connect(file_monitor_changed);
+
+ current = null;
+ look_for_password();
+
+ activate.connect(status_icon_activate);
+ }
+
+ void file_monitor_changed(GLib.File file, GLib.File? other_file, GLib.FileMonitorEvent event_type) throws GLib.Error {
+
+ if (!file.get_basename().has_prefix("ask."))
+ return;
+
+ if (event_type == FileMonitorEvent.CREATED ||
+ event_type == FileMonitorEvent.DELETED)
+ look_for_password();
+ }
+
+ void look_for_password() throws GLib.Error {
+
+ if (current != null) {
+ if (!current.query_exists()) {
+ current = null;
+ if (password_dialog != null)
+ password_dialog.response(ResponseType.REJECT);
+ }
+ }
+
+ if (current == null) {
+ FileEnumerator enumerator = directory.enumerate_children("standard::name", FileQueryInfoFlags.NOFOLLOW_SYMLINKS);
+
+ FileInfo i;
+ while ((i = enumerator.next_file()) != null) {
+ if (!i.get_name().has_prefix("ask."))
+ continue;
+
+ current = directory.get_child(i.get_name());
+
+ if (load_password())
+ break;
+
+ current = null;
+ }
+ }
+
+ if (current == null)
+ set_visible(false);
+
+ }
+
+ bool load_password() {
+
+ KeyFile key_file = new KeyFile();
+
+ try {
+ timespec ts;
+
+ key_file.load_from_file(current.get_path(), KeyFileFlags.NONE);
+
+ string not_after_as_string = key_file.get_string("Ask", "NotAfter");
+
+ clock_gettime(1, out ts);
+ uint64 now = (ts.tv_sec * 1000000) + (ts.tv_nsec / 1000);
+
+ uint64 not_after;
+ if (not_after_as_string.scanf("%llu", out not_after) != 1)
+ return false;
+
+ if (not_after < now)
+ return false;
+
+ socket = key_file.get_string("Ask", "Socket");
+ } catch (GLib.Error e) {
+ return false;
+ }
+
+ try {
+ message = key_file.get_string("Ask", "Message").compress();
+ } catch (GLib.Error e) {
+ message = "Please Enter System Password!";
+ }
+ set_tooltip_text(message);
+
+ try {
+ icon = key_file.get_string("Ask", "Icon");
+ } catch (GLib.Error e) {
+ icon = "dialog-password";
+ }
+ set_from_icon_name(icon);
+
+ set_visible(true);
+ return true;
+ }
+
+ void status_icon_activate() throws GLib.Error {
+
+ if (current == null)
+ return;
+
+ if (password_dialog != null) {
+ password_dialog.present();
+ return;
+ }
+
+ password_dialog = new PasswordDialog(message, icon);
+
+ int result = password_dialog.run();
+ string password = password_dialog.entry.get_text();
+
+ password_dialog.destroy();
+ password_dialog = null;
+
+ if (result == ResponseType.REJECT ||
+ result == ResponseType.DELETE_EVENT)
+ return;
+
+ int to_process;
+
+ Process.spawn_async_with_pipes(
+ null,
+ { "/usr/bin/pkexec", "/lib/systemd/systemd-reply-password", result == ResponseType.OK ? "1" : "0", socket },
+ null,
+ 0,
+ null,
+ null,
+ out to_process,
+ null,
+ null);
+
+ OutputStream stream = new UnixOutputStream(to_process, true);
+
+ stream.write(password, password.length, null);
+ }
+}
+
+static const OptionEntry entries[] = {
+ { null }
+};
+
+void show_error(string e) {
+ var m = new MessageDialog(null, 0, MessageType.ERROR, ButtonsType.CLOSE, "%s", e);
+ m.run();
+ m.destroy();
+}
+
+int main(string[] args) {
+ try {
+ Gtk.init_with_args(ref args, "[OPTION...]", entries, "systemd-ask-password-agent");
+
+ MyStatusIcon i = new MyStatusIcon();
+ Gtk.main();
+
+ } catch (DBus.Error e) {
+ show_error(e.message);
+ } catch (GLib.Error e) {
+ show_error(e.message);
+ }
+
+ return 0;
+}
diff --git a/src/ask-password.c b/src/ask-password.c
new file mode 100644
index 0000000000..2c9b027d00
--- /dev/null
+++ b/src/ask-password.c
@@ -0,0 +1,352 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/un.h>
+#include <sys/stat.h>
+#include <sys/signalfd.h>
+#include <getopt.h>
+
+#include "log.h"
+#include "macro.h"
+#include "util.h"
+
+static const char *arg_icon = NULL;
+static const char *arg_message = NULL;
+static usec_t arg_timeout = 60 * USEC_PER_SEC;
+
+static int create_socket(char **name) {
+ int fd;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_un un;
+ } sa;
+ int one = 1, r;
+ char *c;
+
+ assert(name);
+
+ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) {
+ log_error("socket() failed: %m");
+ return -errno;
+ }
+
+ zero(sa);
+ sa.un.sun_family = AF_UNIX;
+ snprintf(sa.un.sun_path+1, sizeof(sa.un.sun_path)-1, "/org/freedesktop/systemd1/ask-password/%llu", random_ull());
+
+ if (bind(fd, &sa.sa, sizeof(sa_family_t) + 1 + strlen(sa.un.sun_path+1)) < 0) {
+ r = -errno;
+ log_error("bind() failed: %m");
+ goto fail;
+ }
+
+ if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) {
+ r = -errno;
+ log_error("SO_PASSCRED failed: %m");
+ goto fail;
+ }
+
+ if (!(c = strdup(sa.un.sun_path+1))) {
+ r = -ENOMEM;
+ log_error("Out of memory");
+ goto fail;
+ }
+
+ *name = c;
+ return fd;
+
+fail:
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+static int help(void) {
+
+ printf("%s [OPTIONS...] MESSAGE\n\n"
+ "Query the user for a passphrase.\n\n"
+ " -h --help Show this help\n"
+ " --icon=NAME Icon name\n"
+ " --timeout=USEC Timeout in usec\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_ICON = 0x100,
+ ARG_TIMEOUT
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "icon", required_argument, NULL, ARG_ICON },
+ { "timeout", required_argument, NULL, ARG_TIMEOUT },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_ICON:
+ arg_icon = optarg;
+ break;
+
+ case ARG_TIMEOUT:
+ if (parse_usec(optarg, &arg_timeout) < 0 || arg_timeout <= 0) {
+ log_error("Failed to parse --timeout parameter %s", optarg);
+ return -EINVAL;
+ }
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+ }
+
+ if (optind != argc-1) {
+ help();
+ return -EINVAL;
+ }
+
+ arg_message = argv[optind];
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ char temp[] = "/dev/.systemd/ask-password/tmp.XXXXXX";
+ char final[sizeof(temp)] = "";
+ int fd = -1, r = EXIT_FAILURE, k;
+ FILE *f = NULL;
+ char *socket_name = NULL;
+ int socket_fd, signal_fd;
+ sigset_t mask;
+ usec_t not_after;
+
+ log_parse_environment();
+ log_open();
+
+ if ((k = parse_argv(argc, argv)) < 0) {
+ r = k < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+ goto finish;
+ }
+
+ if ((fd = mkostemp(temp, O_CLOEXEC|O_CREAT|O_WRONLY)) < 0) {
+ log_error("Failed to create password file: %m");
+ goto finish;
+ }
+
+ fchmod(fd, 0644);
+
+ if (!(f = fdopen(fd, "w"))) {
+ log_error("Failed to allocate FILE: %m");
+ goto finish;
+ }
+
+ fd = -1;
+
+ assert_se(sigemptyset(&mask) == 0);
+ sigset_add_many(&mask, SIGINT, SIGTERM, -1);
+ assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
+
+ if ((signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC)) < 0) {
+ log_error("signalfd(): %m");
+ goto finish;
+ }
+
+ if ((socket_fd = create_socket(&socket_name)) < 0)
+ goto finish;
+
+ not_after = now(CLOCK_MONOTONIC) + arg_timeout;
+
+ fprintf(f,
+ "[Ask]\n"
+ "Socket=%s\n"
+ "NotAfter=%llu\n",
+ socket_name,
+ (unsigned long long) not_after);
+
+ if (arg_message)
+ fprintf(f, "Message=%s\n", arg_message);
+
+ if (arg_icon)
+ fprintf(f, "Icon=%s\n", arg_icon);
+
+ fflush(f);
+
+ if (ferror(f)) {
+ log_error("Failed to write query file: %m");
+ goto finish;
+ }
+
+ memcpy(final, temp, sizeof(temp));
+
+ final[sizeof(final)-11] = 'a';
+ final[sizeof(final)-10] = 's';
+ final[sizeof(final)-9] = 'k';
+
+ if (rename(temp, final) < 0) {
+ log_error("Failed to rename query file: %m");
+ goto finish;
+ }
+
+ for (;;) {
+ enum {
+ FD_SOCKET,
+ FD_SIGNAL,
+ _FD_MAX
+ };
+
+ char passphrase[LINE_MAX+1];
+ struct msghdr msghdr;
+ struct iovec iovec;
+ struct ucred *ucred;
+ union {
+ struct cmsghdr cmsghdr;
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ } control;
+ ssize_t n;
+ struct pollfd pollfd[_FD_MAX];
+
+ zero(pollfd);
+ pollfd[FD_SOCKET].fd = socket_fd;
+ pollfd[FD_SOCKET].events = POLLIN;
+ pollfd[FD_SIGNAL].fd = signal_fd;
+ pollfd[FD_SIGNAL].events = POLLIN;
+
+ if ((k = poll(pollfd, 2, arg_timeout/USEC_PER_MSEC)) < 0) {
+
+ if (errno == EINTR)
+ continue;
+
+ log_error("poll() failed: %s", strerror(-r));
+ goto finish;
+ }
+
+ if (k <= 0) {
+ log_notice("Timed out");
+ goto finish;
+ }
+
+ if (pollfd[FD_SIGNAL].revents & POLLIN)
+ break;
+
+ if (pollfd[FD_SOCKET].revents != POLLIN) {
+ log_error("Unexpected poll() event.");
+ goto finish;
+ }
+
+ zero(iovec);
+ iovec.iov_base = passphrase;
+ iovec.iov_len = sizeof(passphrase)-1;
+
+ zero(control);
+ zero(msghdr);
+ msghdr.msg_iov = &iovec;
+ msghdr.msg_iovlen = 1;
+ msghdr.msg_control = &control;
+ msghdr.msg_controllen = sizeof(control);
+
+ if ((n = recvmsg(socket_fd, &msghdr, 0)) < 0) {
+
+ if (errno == EAGAIN ||
+ errno == EINTR)
+ continue;
+
+ log_error("recvmsg() failed: %m");
+ goto finish;
+ }
+
+ if (n <= 0) {
+ log_error("Message too short");
+ continue;
+ }
+
+ if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
+ control.cmsghdr.cmsg_level != SOL_SOCKET ||
+ control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
+ control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
+ log_warning("Received message without credentials. Ignoring.");
+ continue;
+ }
+
+ ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
+ if (ucred->uid != 0) {
+ log_warning("Got request from unprivileged user. Ignoring.");
+ continue;
+ }
+
+ if (passphrase[0] == '+') {
+ passphrase[n] = 0;
+ fputs(passphrase+1, stdout);
+ } else if (passphrase[0] == '-')
+ goto finish;
+ else {
+ log_error("Invalid packet");
+ continue;
+ }
+
+ break;
+ }
+
+ r = EXIT_SUCCESS;
+
+finish:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ if (socket_fd >= 0)
+ close_nointr_nofail(socket_fd);
+
+ if (f)
+ fclose(f);
+
+ unlink(temp);
+
+ if (final[0])
+ unlink(final);
+
+ return r;
+}
diff --git a/src/main.c b/src/main.c
index 671f2bbf1d..fcb6e8f9db 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1006,6 +1006,8 @@ int main(int argc, char *argv[]) {
kmod_setup();
hostname_setup();
loopback_setup();
+
+ mkdir_p("/dev/.systemd/ask-password/", 0755);
}
if ((r = manager_new(arg_running_as, &m)) < 0) {
diff --git a/src/org.freedesktop.systemd1.policy b/src/org.freedesktop.systemd1.policy
new file mode 100644
index 0000000000..bb07b827fc
--- /dev/null
+++ b/src/org.freedesktop.systemd1.policy
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?> <!--*-nxml-*-->
+<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
+
+<!--
+ This file is part of systemd.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+-->
+
+<policyconfig>
+
+ <vendor>The systemd Project</vendor>
+ <vendor_url>http://www.freedesktop.org/wiki/Software/systemd</vendor_url>
+
+ <action id="org.freedesktop.systemd1.ReplyPassword">
+ <description>Send passphrase back to system</description>
+ <message>Authentication is required to send the entered passphrase back to the system.</message>
+ <defaults>
+ <allow_any>no</allow_any>
+ <allow_inactive>no</allow_inactive>
+ <allow_active>auth_admin_keep</allow_active>
+ </defaults>
+ <annotate key="org.freedesktop.policykit.exec.path">/lib/systemd/systemd-reply-password</annotate>
+ </action>
+
+</policyconfig>
diff --git a/src/reply-password.c b/src/reply-password.c
new file mode 100644
index 0000000000..236fdcc94c
--- /dev/null
+++ b/src/reply-password.c
@@ -0,0 +1,108 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/un.h>
+#include <sys/stat.h>
+#include <sys/signalfd.h>
+#include <getopt.h>
+
+#include "log.h"
+#include "macro.h"
+#include "util.h"
+
+static int send_on_socket(int fd, const char *socket_name, const void *packet, size_t size) {
+ union {
+ struct sockaddr sa;
+ struct sockaddr_un un;
+ } sa;
+
+ assert(fd >= 0);
+ assert(socket_name);
+ assert(packet);
+
+ zero(sa);
+ sa.un.sun_family = AF_UNIX;
+ strncpy(sa.un.sun_path+1, socket_name, sizeof(sa.un.sun_path)-1);
+
+ if (sendto(fd, packet, size, MSG_NOSIGNAL, &sa.sa, sizeof(sa_family_t) + 1 + strlen(socket_name)) < 0) {
+ log_error("Failed to send: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ int fd = -1, r = EXIT_FAILURE;
+ char packet[LINE_MAX];
+ size_t length;
+
+ log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+ log_parse_environment();
+ log_open();
+
+ if (argc != 3) {
+ log_error("Wrong number of arguments.");
+ goto finish;
+ }
+
+ if (streq(argv[1], "1")) {
+
+ packet[0] = '+';
+ if (!fgets(packet+1, sizeof(packet)-1, stdin)) {
+ log_error("Failed to read password: %m");
+ goto finish;
+ }
+
+ truncate_nl(packet+1);
+ length = strlen(packet+1) + 1;
+ } else if (streq(argv[1], "0")) {
+ packet[0] = '-';
+ length = 1;
+ } else {
+ log_error("Invalid first argument %s", argv[1]);
+ goto finish;
+ }
+
+ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0)) < 0) {
+ log_error("socket() failed: %m");
+ goto finish;
+ }
+
+ if (send_on_socket(fd, argv[2], packet, length) < 0)
+ goto finish;
+
+ r = EXIT_SUCCESS;
+
+finish:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}
diff --git a/src/systemadm.vala b/src/systemadm.vala
index 4aee1d35e6..2f3aed205a 100644
--- a/src/systemadm.vala
+++ b/src/systemadm.vala
@@ -978,7 +978,7 @@ void show_error(string e) {
m.destroy();
}
-int main (string[] args) {
+int main(string[] args) {
try {
Gtk.init_with_args(ref args, "[OPTION...]", entries, "systemadm");
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-26 16:19:16 +0000