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-rw-r--r--src/login/loginctl.c31
-rw-r--r--src/shared/util.c85
-rw-r--r--src/shared/util.h3
-rw-r--r--src/spawn-agent.c120
-rw-r--r--src/spawn-ask-password-agent.c64
-rw-r--r--src/spawn-ask-password-agent.h (renamed from src/core/spawn-agent.h)8
-rw-r--r--src/spawn-polkit-agent.c64
-rw-r--r--src/spawn-polkit-agent.h28
-rw-r--r--src/systemctl.c32
9 files changed, 299 insertions, 136 deletions
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 30e97e352a..2633b47e1c 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -35,6 +35,7 @@
#include "strv.h"
#include "cgroup-show.h"
#include "sysfs-show.h"
+#include "spawn-polkit-agent.h"
static char **arg_property = NULL;
static bool arg_all = false;
@@ -46,6 +47,7 @@ static enum transport {
TRANSPORT_SSH,
TRANSPORT_POLKIT
} arg_transport = TRANSPORT_NORMAL;
+static bool arg_ask_password = true;
static const char *arg_host = NULL;
static bool on_tty(void) {
@@ -68,8 +70,20 @@ static void pager_open_if_enabled(void) {
/* Cache result before we open the pager */
on_tty();
- if (!arg_no_pager)
- pager_open();
+ if (arg_no_pager)
+ return;
+
+ pager_open();
+}
+
+static void polkit_agent_open_if_enabled(void) {
+
+ /* Open the polkit agent as a child process if necessary */
+
+ if (!arg_ask_password)
+ return;
+
+ polkit_agent_open();
}
static int list_sessions(DBusConnection *bus, char **args, unsigned n) {
@@ -1286,6 +1300,8 @@ static int enable_linger(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ polkit_agent_open_if_enabled();
+
b = streq(args[0], "enable-linger");
for (i = 1; i < n; i++) {
@@ -1490,6 +1506,8 @@ static int attach(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ polkit_agent_open_if_enabled();
+
for (i = 2; i < n; i++) {
DBusMessage *reply;
@@ -1546,6 +1564,8 @@ static int flush_devices(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ polkit_agent_open_if_enabled();
+
m = dbus_message_new_method_call(
"org.freedesktop.login1",
"/org/freedesktop/login1",
@@ -1684,7 +1704,8 @@ static int parse_argv(int argc, char *argv[]) {
enum {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
- ARG_KILL_WHO
+ ARG_KILL_WHO,
+ ARG_NO_ASK_PASSWORD
};
static const struct option options[] = {
@@ -1697,6 +1718,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "signal", required_argument, NULL, 's' },
{ "host", required_argument, NULL, 'H' },
{ "privileged",no_argument, NULL, 'P' },
+ { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
{ NULL, 0, NULL, 0 }
};
@@ -1744,6 +1766,9 @@ static int parse_argv(int argc, char *argv[]) {
arg_no_pager = true;
break;
+ case ARG_NO_ASK_PASSWORD:
+ arg_ask_password = false;
+
case ARG_KILL_WHO:
arg_kill_who = optarg;
break;
diff --git a/src/shared/util.c b/src/shared/util.c
index 73e0a290b8..7f41fc4f5e 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -6035,3 +6035,88 @@ int fd_inc_rcvbuf(int fd, size_t n) {
return 1;
}
+
+int fork_agent(pid_t *pid, const char *path, ...) {
+ pid_t parent_pid, agent_pid;
+ int fd;
+ bool stdout_is_tty, stderr_is_tty;
+ unsigned n, i;
+ va_list ap;
+ char **l;
+
+ assert(pid);
+ assert(path);
+
+ parent_pid = getpid();
+
+ /* Spawns a temporary TTY agent, making sure it goes away when
+ * we go away */
+
+ agent_pid = fork();
+ if (agent_pid < 0)
+ return -errno;
+
+ if (agent_pid != 0) {
+ *pid = agent_pid;
+ return 0;
+ }
+
+ /* In the child:
+ *
+ * Make sure the agent goes away when the parent dies */
+ if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
+ _exit(EXIT_FAILURE);
+
+ /* Check whether our parent died before we were able
+ * to set the death signal */
+ if (getppid() != parent_pid)
+ _exit(EXIT_SUCCESS);
+
+ /* Don't leak fds to the agent */
+ close_all_fds(NULL, 0);
+
+ stdout_is_tty = isatty(STDOUT_FILENO);
+ stderr_is_tty = isatty(STDERR_FILENO);
+
+ if (!stdout_is_tty || !stderr_is_tty) {
+ /* Detach from stdout/stderr. and reopen
+ * /dev/tty for them. This is important to
+ * ensure that when systemctl is started via
+ * popen() or a similar call that expects to
+ * read EOF we actually do generate EOF and
+ * not delay this indefinitely by because we
+ * keep an unused copy of stdin around. */
+ fd = open("/dev/tty", O_WRONLY);
+ if (fd < 0) {
+ log_error("Failed to open /dev/tty: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ if (!stdout_is_tty)
+ dup2(fd, STDOUT_FILENO);
+
+ if (!stderr_is_tty)
+ dup2(fd, STDERR_FILENO);
+
+ if (fd > 2)
+ close(fd);
+ }
+
+ /* Count arguments */
+ va_start(ap, path);
+ for (n = 0; va_arg(ap, char*); n++)
+ ;
+ va_end(ap);
+
+ /* Allocate strv */
+ l = alloca(sizeof(char *) * (n + 1));
+
+ /* Fill in arguments */
+ va_start(ap, path);
+ for (i = 0; i <= n; i++)
+ l[i] = va_arg(ap, char*);
+ va_end(ap);
+
+ execv(path, l);
+ _exit(EXIT_FAILURE);
+}
diff --git a/src/shared/util.h b/src/shared/util.h
index e0934e59d9..5e927df02c 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -528,4 +528,7 @@ int is_kernel_thread(pid_t pid);
int fd_inc_sndbuf(int fd, size_t n);
int fd_inc_rcvbuf(int fd, size_t n);
+
+int fork_agent(pid_t *pid, const char *path, ...);
+
#endif
diff --git a/src/spawn-agent.c b/src/spawn-agent.c
deleted file mode 100644
index 2de2530885..0000000000
--- a/src/spawn-agent.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2011 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/types.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/prctl.h>
-#include <signal.h>
-#include <fcntl.h>
-
-#include "log.h"
-#include "util.h"
-#include "spawn-agent.h"
-
-static pid_t agent_pid = 0;
-
-void agent_open(void) {
- pid_t parent_pid;
-
- if (agent_pid > 0)
- return;
-
- /* We check STDIN here, not STDOUT, since this is about input,
- * not output */
- if (!isatty(STDIN_FILENO))
- return;
-
- parent_pid = getpid();
-
- /* Spawns a temporary TTY agent, making sure it goes away when
- * we go away */
-
- agent_pid = fork();
- if (agent_pid < 0) {
- log_error("Failed to fork agent: %m");
- return;
- }
-
- if (agent_pid == 0) {
- /* In the child */
-
- int fd;
- bool stdout_is_tty, stderr_is_tty;
-
- /* Make sure the agent goes away when the parent dies */
- if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
- _exit(EXIT_FAILURE);
-
- /* Check whether our parent died before we were able
- * to set the death signal */
- if (getppid() != parent_pid)
- _exit(EXIT_SUCCESS);
-
- /* Don't leak fds to the agent */
- close_all_fds(NULL, 0);
-
- stdout_is_tty = isatty(STDOUT_FILENO);
- stderr_is_tty = isatty(STDERR_FILENO);
-
- if (!stdout_is_tty || !stderr_is_tty) {
- /* Detach from stdout/stderr. and reopen
- * /dev/tty for them. This is important to
- * ensure that when systemctl is started via
- * popen() or a similar call that expects to
- * read EOF we actually do generate EOF and
- * not delay this indefinitely by because we
- * keep an unused copy of stdin around. */
- fd = open("/dev/tty", O_WRONLY);
- if (fd < 0) {
- log_error("Failed to open /dev/tty: %m");
- _exit(EXIT_FAILURE);
- }
-
- if (!stdout_is_tty)
- dup2(fd, STDOUT_FILENO);
-
- if (!stderr_is_tty)
- dup2(fd, STDERR_FILENO);
-
- if (fd > 2)
- close(fd);
- }
-
- execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
-
- log_error("Unable to execute agent: %m");
- _exit(EXIT_FAILURE);
- }
-}
-
-void agent_close(void) {
-
- if (agent_pid <= 0)
- return;
-
- /* Inform agent that we are done */
- kill(agent_pid, SIGTERM);
- kill(agent_pid, SIGCONT);
- wait_for_terminate(agent_pid, NULL);
- agent_pid = 0;
-}
diff --git a/src/spawn-ask-password-agent.c b/src/spawn-ask-password-agent.c
new file mode 100644
index 0000000000..82db08c3a9
--- /dev/null
+++ b/src/spawn-ask-password-agent.c
@@ -0,0 +1,64 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/types.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <signal.h>
+#include <fcntl.h>
+
+#include "log.h"
+#include "util.h"
+#include "spawn-ask-password-agent.h"
+
+static pid_t agent_pid = 0;
+
+int ask_password_agent_open(void) {
+ int r;
+
+ if (agent_pid > 0)
+ return 0;
+
+ /* We check STDIN here, not STDOUT, since this is about input,
+ * not output */
+ if (!isatty(STDIN_FILENO))
+ return 0;
+
+ r = fork_agent(&agent_pid, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
+ if (r < 0)
+ log_error("Failed to fork TTY ask password agent: %s", strerror(-r));
+
+ return r;
+}
+
+void ask_password_agent_close(void) {
+
+ if (agent_pid <= 0)
+ return;
+
+ /* Inform agent that we are done */
+ kill(agent_pid, SIGTERM);
+ kill(agent_pid, SIGCONT);
+ wait_for_terminate(agent_pid, NULL);
+ agent_pid = 0;
+}
diff --git a/src/core/spawn-agent.h b/src/spawn-ask-password-agent.h
index fd0a9109b8..dae039ad05 100644
--- a/src/core/spawn-agent.h
+++ b/src/spawn-ask-password-agent.h
@@ -1,7 +1,7 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-#ifndef foospawnagenthfoo
-#define foospawnagenthfoo
+#ifndef foospawnaskpasswordagenthfoo
+#define foospawnaskpasswordagenthfoo
/***
This file is part of systemd.
@@ -22,7 +22,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-void agent_open(void);
-void agent_close(void);
+int ask_password_agent_open(void);
+void ask_password_agent_close(void);
#endif
diff --git a/src/spawn-polkit-agent.c b/src/spawn-polkit-agent.c
new file mode 100644
index 0000000000..0da9abb7e0
--- /dev/null
+++ b/src/spawn-polkit-agent.c
@@ -0,0 +1,64 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 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/types.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <signal.h>
+#include <fcntl.h>
+
+#include "log.h"
+#include "util.h"
+#include "spawn-polkit-agent.h"
+
+static pid_t agent_pid = 0;
+
+int polkit_agent_open(void) {
+ int r;
+
+ if (agent_pid > 0)
+ return 0;
+
+ /* We check STDIN here, not STDOUT, since this is about input,
+ * not output */
+ if (!isatty(STDIN_FILENO))
+ return 0;
+
+ r = fork_agent(&agent_pid, POLKIT_AGENT_BINARY_PATH, POLKIT_AGENT_BINARY_PATH, NULL);
+ if (r < 0)
+ log_error("Failed to fork TTY ask password agent: %s", strerror(-r));
+
+ return r;
+}
+
+void polkit_agent_close(void) {
+
+ if (agent_pid <= 0)
+ return;
+
+ /* Inform agent that we are done */
+ kill(agent_pid, SIGTERM);
+ kill(agent_pid, SIGCONT);
+ wait_for_terminate(agent_pid, NULL);
+ agent_pid = 0;
+}
diff --git a/src/spawn-polkit-agent.h b/src/spawn-polkit-agent.h
new file mode 100644
index 0000000000..34131f019a
--- /dev/null
+++ b/src/spawn-polkit-agent.h
@@ -0,0 +1,28 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foospawnpolkitagenthfoo
+#define foospawnpolkitagenthfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 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/>.
+***/
+
+int polkit_agent_open(void);
+void polkit_agent_close(void);
+
+#endif
diff --git a/src/systemctl.c b/src/systemctl.c
index 43a1446a8c..7abd928389 100644
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -57,7 +57,8 @@
#include "build.h"
#include "unit-name.h"
#include "pager.h"
-#include "spawn-agent.h"
+#include "spawn-ask-password-agent.h"
+#include "spawn-polkit-agent.h"
#include "install.h"
#include "logs-show.h"
@@ -78,7 +79,7 @@ static bool arg_dry = false;
static bool arg_quiet = false;
static bool arg_full = false;
static int arg_force = 0;
-static bool arg_ask_password = false;
+static bool arg_ask_password = true;
static bool arg_failed = false;
static bool arg_runtime = false;
static char **arg_wall = NULL;
@@ -154,7 +155,7 @@ static void pager_open_if_enabled(void) {
pager_open();
}
-static void agent_open_if_enabled(void) {
+static void ask_password_agent_open_if_enabled(void) {
/* Open the password agent as a child process if necessary */
@@ -164,7 +165,20 @@ static void agent_open_if_enabled(void) {
if (arg_scope != UNIT_FILE_SYSTEM)
return;
- agent_open();
+ ask_password_agent_open();
+}
+
+static void polkit_agent_open_if_enabled(void) {
+
+ /* Open the polkit agent as a child process if necessary */
+
+ if (!arg_ask_password)
+ return;
+
+ if (arg_scope != UNIT_FILE_SYSTEM)
+ return;
+
+ polkit_agent_open();
}
static const char *ansi_highlight_red(bool b) {
@@ -1601,7 +1615,7 @@ static int start_unit(DBusConnection *bus, char **args) {
assert(bus);
- agent_open_if_enabled();
+ ask_password_agent_open_if_enabled();
if (arg_action == ACTION_SYSTEMCTL) {
method =
@@ -1695,6 +1709,8 @@ static int reboot_with_logind(DBusConnection *bus, enum action a) {
dbus_error_init(&error);
+ polkit_agent_open_if_enabled();
+
switch (a) {
case ACTION_REBOOT:
@@ -4290,9 +4306,6 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
- /* Only when running as systemctl we ask for passwords */
- arg_ask_password = true;
-
while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
switch (c) {
@@ -5503,7 +5516,8 @@ finish:
strv_free(arg_property);
pager_close();
- agent_close();
+ ask_password_agent_close();
+ polkit_agent_close();
return retval;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-08 09:10:07 +0000