#include "audit.h"
#include "macro.h"
#include "strv.h"
-#include "dbus-common.h"
+#include "bus-util.h"
#include "def.h"
#include "socket-util.h"
#include "fileio.h"
+#include "bus-error.h"
static int parse_argv(pam_handle_t *handle,
int argc, const char **argv,
assert(argc >= 0);
assert(argc == 0 || argv);
- for (i = 0; i < (unsigned) argc; i++) {
- int k;
-
+ for (i = 0; i < (unsigned) argc; i++)
if (startswith(argv[i], "class=")) {
-
if (class)
*class = argv[i] + 6;
- } else if (startswith(argv[i], "debug=")) {
- k = parse_boolean(argv[i] + 6);
+ } else if (streq(argv[i], "debug")) {
+ if (debug)
+ *debug = true;
- if (k < 0) {
- pam_syslog(handle, LOG_ERR, "Failed to parse debug= argument.");
- return k;
- }
+ } else if (startswith(argv[i], "debug=")) {
+ int k;
- if (debug)
+ k = parse_boolean(argv[i] + 6);
+ if (k < 0)
+ pam_syslog(handle, LOG_WARNING, "Failed to parse debug= argument, ignoring.");
+ else if (debug)
*debug = k;
- } else {
+ } else
pam_syslog(handle, LOG_WARNING, "Unknown parameter '%s', ignoring", argv[i]);
- return 0;
- }
- }
return 0;
}
int flags,
int argc, const char **argv) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ const char
+ *username, *id, *object_path, *runtime_path,
+ *service = NULL,
+ *tty = NULL, *display = NULL,
+ *remote_user = NULL, *remote_host = NULL,
+ *seat = NULL,
+ *type = NULL, *class = NULL,
+ *class_pam = NULL, *cvtnr = NULL;
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
+ int session_fd = -1, existing, r;
+ uint32_t uid, pid, vtnr = 0;
+ bool debug = false, remote;
struct passwd *pw;
- bool debug = false;
- const char *username, *id, *object_path, *runtime_path, *service = NULL, *tty = NULL, *display = NULL, *remote_user = NULL, *remote_host = NULL, *seat = NULL, *type = NULL, *class = NULL, *class_pam = NULL, *cvtnr = NULL;
- DBusError error;
- uint32_t uid, pid;
- DBusMessageIter iter;
- int session_fd = -1;
- DBusConnection *bus = NULL;
- DBusMessage *m = NULL, *reply = NULL;
- dbus_bool_t remote, existing;
- int r;
- uint32_t vtnr = 0;
assert(handle);
- dbus_error_init(&error);
-
- /* pam_syslog(handle, LOG_INFO, "pam-systemd initializing"); */
+ if (debug)
+ pam_syslog(handle, LOG_INFO, "pam-systemd initializing");
/* Make this a NOP on non-logind systems */
if (!logind_running())
if (parse_argv(handle,
argc, argv,
&class_pam,
- &debug) < 0) {
- r = PAM_SESSION_ERR;
- goto finish;
- }
+ &debug) < 0)
+ return PAM_SESSION_ERR;
r = get_user_data(handle, &username, &pw);
- if (r != PAM_SUCCESS)
- goto finish;
+ if (r != PAM_SUCCESS) {
+ pam_syslog(handle, LOG_ERR, "Failed to get user data.");
+ return r;
+ }
/* Make sure we don't enter a loop by talking to
* systemd-logind when it is actually waiting for the
pam_get_item(handle, PAM_SERVICE, (const void**) &service);
if (streq_ptr(service, "systemd-user")) {
- char *p, *rt = NULL;
+ _cleanup_free_ char *p = NULL, *rt = NULL;
- if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) pw->pw_uid) < 0) {
- r = PAM_BUF_ERR;
- goto finish;
- }
+ if (asprintf(&p, "/run/systemd/users/%lu", (unsigned long) pw->pw_uid) < 0)
+ return PAM_BUF_ERR;
r = parse_env_file(p, NEWLINE,
"RUNTIME", &rt,
NULL);
- free(p);
-
- if (r < 0 && r != -ENOENT) {
- r = PAM_SESSION_ERR;
- free(rt);
- goto finish;
- }
+ if (r < 0 && r != -ENOENT)
+ return PAM_SESSION_ERR;
if (rt) {
r = pam_misc_setenv(handle, "XDG_RUNTIME_DIR", rt, 0);
- free(rt);
-
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to set runtime dir.");
- goto finish;
+ return r;
}
}
- r = PAM_SUCCESS;
- goto finish;
- }
-
- dbus_connection_set_change_sigpipe(FALSE);
-
- bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
- if (!bus) {
- pam_syslog(handle, LOG_ERR, "Failed to connect to system bus: %s", bus_error_message(&error));
- r = PAM_SESSION_ERR;
- goto finish;
+ return PAM_SUCCESS;
}
- m = dbus_message_new_method_call(
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "CreateSession");
- if (!m) {
- pam_syslog(handle, LOG_ERR, "Could not allocate create session message.");
- r = PAM_BUF_ERR;
- goto finish;
- }
+ /* Otherwise, we ask logind to create a session for us */
uid = pw->pw_uid;
pid = getpid();
!streq(remote_host, "localhost") &&
!streq(remote_host, "localhost.localdomain");
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &uid,
- DBUS_TYPE_UINT32, &pid,
- DBUS_TYPE_STRING, &service,
- DBUS_TYPE_STRING, &type,
- DBUS_TYPE_STRING, &class,
- DBUS_TYPE_STRING, &seat,
- DBUS_TYPE_UINT32, &vtnr,
- DBUS_TYPE_STRING, &tty,
- DBUS_TYPE_STRING, &display,
- DBUS_TYPE_BOOLEAN, &remote,
- DBUS_TYPE_STRING, &remote_user,
- DBUS_TYPE_STRING, &remote_host,
- DBUS_TYPE_INVALID)) {
- pam_syslog(handle, LOG_ERR, "Could not attach parameters to message.");
- r = PAM_BUF_ERR;
- goto finish;
- }
+ /* Talk to logind over the message bus */
- dbus_message_iter_init_append(m, &iter);
+ r = sd_bus_open_system(&bus);
+ if (r < 0) {
+ pam_syslog(handle, LOG_ERR, "Failed to connect to system bus: %s", strerror(-r));
+ return PAM_SESSION_ERR;
+ }
if (debug)
pam_syslog(handle, LOG_DEBUG, "Asking logind to create session: "
"uid=%u pid=%u service=%s type=%s class=%s seat=%s vtnr=%u tty=%s display=%s remote=%s remote_user=%s remote_host=%s",
uid, pid, service, type, class, seat, vtnr, tty, display, yes_no(remote), remote_user, remote_host);
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- pam_syslog(handle, LOG_ERR, "Failed to create session: %s", bus_error_message(&error));
- r = PAM_SESSION_ERR;
- goto finish;
+ r = sd_bus_call_method(bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "CreateSession",
+ &error,
+ &reply,
+ "uussssussbssa(sv)",
+ uid,
+ pid,
+ service,
+ type,
+ class,
+ seat,
+ vtnr,
+ tty,
+ display,
+ remote,
+ remote_user,
+ remote_host,
+ 0);
+ if (r < 0) {
+ pam_syslog(handle, LOG_ERR, "Failed to create session: %s", bus_error_message(&error, r));
+ return PAM_SYSTEM_ERR;
}
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_STRING, &id,
- DBUS_TYPE_OBJECT_PATH, &object_path,
- DBUS_TYPE_STRING, &runtime_path,
- DBUS_TYPE_UNIX_FD, &session_fd,
- DBUS_TYPE_STRING, &seat,
- DBUS_TYPE_UINT32, &vtnr,
- DBUS_TYPE_BOOLEAN, &existing,
- DBUS_TYPE_INVALID)) {
- pam_syslog(handle, LOG_ERR, "Failed to parse message: %s", bus_error_message(&error));
- r = PAM_SESSION_ERR;
- goto finish;
+ r = sd_bus_message_read(reply,
+ "soshsub",
+ &id,
+ &object_path,
+ &runtime_path,
+ &session_fd,
+ &seat,
+ &vtnr,
+ &existing);
+ if (r < 0) {
+ pam_syslog(handle, LOG_ERR, "Failed to parse message: %s", strerror(-r));
+ return PAM_SESSION_ERR;
}
if (debug)
r = pam_misc_setenv(handle, "XDG_SESSION_ID", id, 0);
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to set session id.");
- goto finish;
+ return r;
}
r = pam_misc_setenv(handle, "XDG_RUNTIME_DIR", runtime_path, 0);
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to set runtime dir.");
- goto finish;
+ return r;
}
if (!isempty(seat)) {
r = pam_misc_setenv(handle, "XDG_SEAT", seat, 0);
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to set seat.");
- goto finish;
+ return r;
}
}
if (vtnr > 0) {
- char buf[11];
+ char buf[DECIMAL_STR_MAX(vtnr)];
snprintf(buf, sizeof(buf), "%u", vtnr);
- char_array_0(buf);
r = pam_misc_setenv(handle, "XDG_VTNR", buf, 0);
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to set virtual terminal number.");
- goto finish;
+ return r;
}
}
}
if (session_fd >= 0) {
+ session_fd = dup(session_fd);
+ if (session_fd < 0) {
+ pam_syslog(handle, LOG_ERR, "Failed to dup session fd: %m");
+ return PAM_SESSION_ERR;
+ }
+
r = pam_set_data(handle, "systemd.session-fd", INT_TO_PTR(session_fd+1), NULL);
if (r != PAM_SUCCESS) {
pam_syslog(handle, LOG_ERR, "Failed to install session fd.");
+ close_nointr_nofail(session_fd);
return r;
}
}
- session_fd = -1;
-
- r = PAM_SUCCESS;
-
-finish:
- dbus_error_free(&error);
-
- if (bus) {
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
-
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- if (session_fd >= 0)
- close_nointr_nofail(session_fd);
-
- return r;
+ return PAM_SUCCESS;
}
_public_ PAM_EXTERN int pam_sm_close_session(
int flags,
int argc, const char **argv) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_bus_unref_ sd_bus *bus = NULL;
const void *p = NULL, *existing = NULL;
const char *id;
- DBusConnection *bus = NULL;
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
int r;
assert(handle);
- dbus_error_init(&error);
-
/* Only release session if it wasn't pre-existing when we
* tried to create it */
pam_get_data(handle, "systemd.existing", &existing);
* that it doesn't just go and slaughter us
* immediately after closing the fd */
- bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
- if (!bus) {
- pam_syslog(handle, LOG_ERR, "Failed to connect to system bus: %s", bus_error_message(&error));
+ r = sd_bus_open_system(&bus);
+ if (r < 0) {
+ pam_syslog(handle, LOG_ERR,
+ "Failed to connect to system bus: %s", strerror(-r));
r = PAM_SESSION_ERR;
goto finish;
}
- m = dbus_message_new_method_call(
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- "ReleaseSession");
- if (!m) {
- pam_syslog(handle, LOG_ERR, "Could not allocate release session message.");
- r = PAM_BUF_ERR;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &id,
- DBUS_TYPE_INVALID)) {
- pam_syslog(handle, LOG_ERR, "Could not attach parameters to message.");
- r = PAM_BUF_ERR;
- goto finish;
- }
+ r = sd_bus_call_method(bus,
+ "org.freedesktop.login1",
+ "/org/freedesktop/login1",
+ "org.freedesktop.login1.Manager",
+ "ReleaseSession",
+ &error,
+ NULL,
+ "s",
+ id);
+ if (r < 0) {
+ pam_syslog(handle, LOG_ERR,
+ "Failed to release session: %s", bus_error_message(&error, r));
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- pam_syslog(handle, LOG_ERR, "Failed to release session: %s", bus_error_message(&error));
r = PAM_SESSION_ERR;
goto finish;
}
if (p)
close_nointr(PTR_TO_INT(p) - 1);
- dbus_error_free(&error);
-
- if (bus) {
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
-
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
return r;
}