neocturne/pam_network_manager
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Split module into a helper executable and a minimal module

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This commit is contained in:
Matthias Schiffer 2015-05-12 16:35:54 +02:00
parent 6ae9a6a164
commit 11f2c30f5b
7 changed files with 377 additions and 244 deletions
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34
CMakeLists.txt Normal file
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@ -0,0 +1,34 @@
cmake_minimum_required(VERSION 2.8.3)
project(PAM_WLAN C)
set(CMAKE_MODULE_PATH ${PAM_WLAN_SOURCE_DIR})
find_package(PAM REQUIRED)
find_package(libnm_glib REQUIRED)
set(PAM_MODULE_DIR "${CMAKE_INSTALL_PREFIX}/lib/security" CACHE STRING "PAM module directory")
set(PAM_WLAN_HELPER_DIR "${CMAKE_INSTALL_PREFIX}/lib/security/pam_wlan" CACHE STRING "pam_wlan_helper install directory")
include_directories(${CMAKE_CURRENT_BINARY_DIR} ${PAM_INCLUDE_DIR} ${LIBNM_GLIB_INCLUDE_DIRS})
link_directories(${LIBNM_GLIB_LIBRARY_DIRS})
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)
add_executable(pam_wlan_helper pam_wlan_helper.c)
set_property(TARGET pam_wlan_helper PROPERTY COMPILE_DEFINITIONS "_DEFAULT_SOURCE;_BSD_SOURCE")
set_property(TARGET pam_wlan_helper PROPERTY COMPILE_FLAGS "-std=c99 -Wall ${LIBNM_GLIB_CFLAGS_OTHER}")
set_property(TARGET pam_wlan_helper PROPERTY LINK_FLAGS "${LIBNM_GLIB_LDFLAGS_OTHER}")
target_link_libraries(pam_wlan_helper ${LIBNM_GLIB_LIBRARIES})
add_executable(pam_wlan_test pam_wlan.c)
set_property(TARGET pam_wlan_test PROPERTY COMPILE_DEFINITIONS "_DEFAULT_SOURCE;_BSD_SOURCE;TEST")
set_property(TARGET pam_wlan_test PROPERTY COMPILE_FLAGS "-std=c99 -Wall")
add_library(pam_wlan MODULE pam_wlan.c)
set_property(TARGET pam_wlan PROPERTY COMPILE_DEFINITIONS "_DEFAULT_SOURCE;_BSD_SOURCE")
set_property(TARGET pam_wlan PROPERTY COMPILE_FLAGS "-std=c99 -Wall")
install(TARGETS pam_wlan pam_wlan_helper
RUNTIME DESTINATION "${PAM_WLAN_HELPER_DIR}"
LIBRARY DESTINATION "${PAM_MODULE_DIR}"
)

15
FindPAM.cmake Normal file
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@ -0,0 +1,15 @@
FIND_PATH(PAM_INCLUDE_DIR security/pam_modules.h)
IF (PAM_INCLUDE_DIR)
SET(PAM_FOUND TRUE)
ENDIF (PAM_INCLUDE_DIR)
IF (PAM_FOUND)
IF (NOT PAM_FIND_QUIETLY)
MESSAGE(STATUS "Found PAM (include path: ${PAM_INCLUDE_DIR})")
ENDIF (NOT PAM_FIND_QUIETLY)
ELSE (PAM_FOUND)
IF (PAM_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find PAM")
ENDIF (PAM_FIND_REQUIRED)
ENDIF (PAM_FOUND)

20
Findlibnm_glib.cmake Normal file
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@ -0,0 +1,20 @@
# Defines the following variables:
# LIBNM_GLIB_FOUND
# LIBNM_GLIB_INCLUDE_DIRS
# LIBNM_GLIB_CFLAGS_OTHER
# LIBNM_GLIB_LIBRARIES
# LIBNM_GLIB_LIBRARY_DIRS
# LIBNM_GLIB_LDFLAGS_OTHER
find_package(PkgConfig REQUIRED QUIET)
pkg_check_modules(_LIBNM_GLIB libnm-glib)
set(LIBNM_GLIB_INCLUDE_DIRS "${_LIBNM_GLIB_INCLUDE_DIRS}" CACHE STRING "Include directories for libnm-glib")
set(LIBNM_GLIB_CFLAGS_OTHER "${_LIBNM_GLIB_CFLAGS_OTHER}" CACHE STRING "Additional compiler flags for libnm-glib")
set(LIBNM_GLIB_LIBRARY_DIRS "${_LIBNM_GLIB_LIBRARY_DIRS}" CACHE STRING "Library directories for libnm-glib")
set(LIBNM_GLIB_LIBRARIES "${_LIBNM_GLIB_LIBRARIES}" CACHE STRING "Libraries for libnm-glib")
set(LIBNM_GLIB_LDFLAGS_OTHER "${_LIBNM_GLIB_LDFLAGS_OTHER}" CACHE STRING "Additional linker flags for libnm-glib")
find_package_handle_standard_args(LIBNM_GLIB REQUIRED_VARS LIBNM_GLIB_LIBRARIES LIBNM_GLIB_INCLUDE_DIRS)
mark_as_advanced(LIBNM_GLIB_INCLUDE_DIRS LIBNM_GLIB_CFLAGS_OTHER LIBNM_GLIB_LIBRARIES LIBNM_GLIB_LIBRARY_DIRS LIBNM_GLIB_LDFLAGS_OTHER)

7
Makefile
View file

@ -1,7 +0,0 @@
all : pam_wlan.so pam_wlan_test
pam_wlan.so : pam_wlan.c
$(CC) -fPIC -shared -o pam_wlan.so pam_wlan.c $(shell pkg-config --cflags --libs libnm-glib) -Wall
pam_wlan_test : pam_wlan.c
$(CC) -g -DTEST -o pam_wlan_test pam_wlan.c $(shell pkg-config --cflags --libs libnm-glib) -Wall

31
config.h.in Normal file
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@ -0,0 +1,31 @@
/*
Copyright (c) 2015, Kristof Stahl <stahl@itsc.uni-luebeck.de>
Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#define PAM_WLAN_HELPER "@PAM_WLAN_HELPER_DIR@/pam_wlan_helper"

253
pam_wlan.c
View file

@ -26,27 +26,17 @@
/* /*
Helpful pages: See:
http://www.linux-pam.org/Linux-PAM-html/mwg-expected-of-module-auth.html http://www.linux-pam.org/Linux-PAM-html/mwg-expected-of-module-auth.html
http://www.linux-pam.org/Linux-PAM-html/mwg-expected-by-module-item.html http://www.linux-pam.org/Linux-PAM-html/mwg-expected-by-module-item.html
http://www.linux-pam.org/Linux-PAM-html/mwg-see-programming-libs.html http://www.linux-pam.org/Linux-PAM-html/mwg-see-programming-libs.html
some (bad) example.. https://github.com/beatgammit/simple-pam/blob/master/src/mypam.c some (bad) example.. https://github.com/beatgammit/simple-pam/blob/master/src/mypam.c
https://developer.gnome.org/libnm-glib/0.9/
https://developer.gnome.org/libnm-util/0.9/
*/ */
#define PAM_SM_AUTH #define PAM_SM_AUTH
#ifdef TEST
#include <stdio.h> #include <stdio.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h> #include <unistd.h>
#include <sys/types.h> #include <sys/types.h>
@ -54,237 +44,25 @@
#include <security/pam_modules.h> #include <security/pam_modules.h>
#include <nm-client.h> #include <config.h>
#include <nm-remote-settings.h>
#include <nm-setting-connection.h>
#include <nm-setting-wireless.h>
#include <nm-setting-wireless-security.h>
#include <nm-setting-8021x.h>
#include <nm-setting-ip4-config.h>
#include <nm-setting-ip6-config.h>
#define TIMEOUT 10 #define UNUSED __attribute__((unused))
#define CONNECTION_ID "UzL-Wlan"
#define CONNECTION_UUID "af7b7f0b-3e09-442e-8841-f7d7482fa7b0"
#define CONNECTION_SSID "UzL-Wlan"
#define CONNECTION_AUTH_ALG "open"
#define CONNECTION_KEY_MGMT "wpa-eap"
#define CONNECTION_EAP "ttls"
#define CONNECTION_PHASE2_AUTHEAP "mschapv2"
static GByteArray * string_to_byte_array(const char *str) {
size_t len = strlen(str);
GByteArray *ba = g_byte_array_sized_new(len);
g_byte_array_append(ba, (const unsigned char *)str, len);
return ba;
}
static int setup_connection(NMConnection *con, const char *user, const char *pass) {
NMSetting *setting;
/* NMSettingConnection */
setting = nm_setting_connection_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_CONNECTION_UUID, CONNECTION_UUID,
NM_SETTING_CONNECTION_ID, CONNECTION_ID,
NM_SETTING_CONNECTION_TYPE, NM_SETTING_WIRELESS_SETTING_NAME,
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingWireless */
setting = nm_setting_wireless_new();
GByteArray *ssid = string_to_byte_array(CONNECTION_SSID);
g_object_set(G_OBJECT(setting),
NM_SETTING_WIRELESS_SSID, ssid,
NM_SETTING_WIRELESS_MODE, NM_SETTING_WIRELESS_MODE_INFRA,
NULL);
g_byte_array_unref(ssid);
nm_connection_add_setting(con, setting);
/* NMSettingWirelessSecurity */
setting = nm_setting_wireless_security_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_WIRELESS_SECURITY_AUTH_ALG, CONNECTION_AUTH_ALG,
NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, CONNECTION_KEY_MGMT,
NULL);
nm_connection_add_setting(con, setting);
/* NMSetting8021x */
setting = nm_setting_802_1x_new();
/* TODO: Add certificate and subject check */
nm_setting_802_1x_add_eap_method(NM_SETTING_802_1X(setting), CONNECTION_EAP);
g_object_set(setting,
NM_SETTING_802_1X_IDENTITY, user,
NM_SETTING_802_1X_PASSWORD, pass,
NM_SETTING_802_1X_PHASE2_AUTHEAP, CONNECTION_PHASE2_AUTHEAP,
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingIP4Config */
setting = nm_setting_ip4_config_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_IP4_CONFIG_METHOD, "auto",
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingIP6Config */
setting = nm_setting_ip6_config_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_IP6_CONFIG_METHOD, "auto",
NULL);
nm_connection_add_setting(con, setting);
return PAM_SUCCESS;
}
typedef struct {
int ret;
GMainLoop *loop;
NMClient *client;
} cb_arg;
static NMDevice * find_device(NMClient *client) {
size_t i;
const GPtrArray *devices = nm_client_get_devices(client);
for (i = 0; i < devices->len; i++) {
NMDevice *device = g_ptr_array_index(devices, i);
if (nm_device_get_device_type(device) == NM_DEVICE_TYPE_WIFI)
return device;
}
return NULL;
}
static void state_cb(NMDevice *device, GParamSpec *pspec, gpointer user_data) {
cb_arg *arg = user_data;
NMActiveConnection *active_connection = nm_device_get_active_connection(device);
if (!active_connection)
return;
NMActiveConnectionState state = nm_active_connection_get_state(active_connection);
if (state != NM_ACTIVE_CONNECTION_STATE_ACTIVATING && state != NM_ACTIVE_CONNECTION_STATE_DEACTIVATING) {
if (state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED)
arg->ret = PAM_SUCCESS;
g_main_loop_quit(arg->loop);
}
}
static void activate_cb(NMClient *client, NMActiveConnection *active_connection, GError *error, gpointer user_data) {
cb_arg *arg = user_data;
if (error)
goto error;
return;
error:
g_main_loop_quit(arg->loop);
}
static void add_cb(NMRemoteSettings *settings, NMRemoteConnection *con, GError *error, gpointer user_data) {
cb_arg *arg = user_data;
if (error)
goto error;
NMDevice *device = find_device(arg->client);
if (!device)
goto error;
g_signal_connect(device, "notify::state", G_CALLBACK(state_cb), arg);
nm_client_activate_connection(arg->client, NM_CONNECTION(con), device, NULL, activate_cb, arg);
return;
error:
g_main_loop_quit(arg->loop);
}
static int do_authenticate(const char *user, const char *pass) {
DBusGConnection *dbus = NULL;
NMRemoteSettings *settings = NULL;
NMConnection *con = NULL;
cb_arg arg = {};
arg.ret = PAM_SYSTEM_ERR;
arg.loop = g_main_loop_new(NULL, FALSE);
arg.client = nm_client_new();
if (!arg.client)
goto end;
dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
if (!dbus)
goto end;
settings = nm_remote_settings_new(dbus);
if (!settings)
goto end;
con = nm_connection_new();
setup_connection(con, user, pass);
if (!nm_remote_settings_add_connection_unsaved(settings, con, add_cb, &arg))
goto end;
arg.ret = PAM_AUTH_ERR;
g_main_loop_run(arg.loop);
end:
g_object_unref(con);
g_object_unref(settings);
dbus_g_connection_unref(dbus);
g_object_unref(arg.client);
g_main_loop_unref(arg.loop);
return arg.ret;
}
static int authenticate(const char *user, const char *pass) { static int authenticate(const char *user, const char *pass) {
int status; FILE *stream = popen(PAM_WLAN_HELPER, "we");
int fds[2];
if (pipe(fds)) fputs(user, stream);
fputc(0, stream);
fputs(pass, stream);
int status = fclose(stream);
if (WIFEXITED(status))
return WEXITSTATUS(status);
else
return PAM_SYSTEM_ERR; return PAM_SYSTEM_ERR;
pid_t pid = fork();
if (pid < 0)
return PAM_SYSTEM_ERR;
if (pid == 0) {
close(fds[0]);
status = do_authenticate(user, pass);
write(fds[1], &status, sizeof(status));
close(fds[1]);
_exit(0);
}
close(fds[1]);
if (waitpid(pid, NULL, 0) < 0)
goto error;
if (read(fds[0], &status, sizeof(status)) != sizeof(status))
goto error;
close(fds[0]);
return status;
error:
close(fds[0]);
return PAM_SYSTEM_ERR;
} }
#ifdef TEST #ifdef TEST
@ -304,7 +82,7 @@ int main(int argc, char *argv[]) {
#else #else
PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, __attribute__((unused)) int flags, __attribute__((unused)) int argc, __attribute__((unused)) const char **argv) { PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, UNUSED int flags, UNUSED int argc, UNUSED const char **argv) {
const void *pass; const void *pass;
const void *user; const void *user;
int result; int result;
@ -319,4 +97,5 @@ PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, __attribute__((unused)) i
return authenticate(user, pass); return authenticate(user, pass);
} }
#endif #endif

261
pam_wlan_helper.c Normal file
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@ -0,0 +1,261 @@
/*
Copyright (c) 2015, Kristof Stahl <stahl@itsc.uni-luebeck.de>
Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
See:
https://developer.gnome.org/libnm-glib/0.9/
https://developer.gnome.org/libnm-util/0.9/
*/
#include <stdio.h>
#include <string.h>
#include <security/pam_modules.h>
#include <nm-client.h>
#include <nm-remote-settings.h>
#include <nm-setting-connection.h>
#include <nm-setting-wireless.h>
#include <nm-setting-wireless-security.h>
#include <nm-setting-8021x.h>
#include <nm-setting-ip4-config.h>
#include <nm-setting-ip6-config.h>
#define TIMEOUT 10
#define CONNECTION_ID "UzL-Wlan"
#define CONNECTION_UUID "af7b7f0b-3e09-442e-8841-f7d7482fa7b0"
#define CONNECTION_SSID "UzL-Wlan"
#define CONNECTION_AUTH_ALG "open"
#define CONNECTION_KEY_MGMT "wpa-eap"
#define CONNECTION_EAP "ttls"
#define CONNECTION_PHASE2_AUTHEAP "mschapv2"
#define UNUSED __attribute__((unused))
static GByteArray * string_to_byte_array(const char *str) {
size_t len = strlen(str);
GByteArray *ba = g_byte_array_sized_new(len);
g_byte_array_append(ba, (const unsigned char *)str, len);
return ba;
}
static int setup_connection(NMConnection *con, const char *user, const char *pass) {
NMSetting *setting;
/* NMSettingConnection */
setting = nm_setting_connection_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_CONNECTION_UUID, CONNECTION_UUID,
NM_SETTING_CONNECTION_ID, CONNECTION_ID,
NM_SETTING_CONNECTION_TYPE, NM_SETTING_WIRELESS_SETTING_NAME,
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingWireless */
setting = nm_setting_wireless_new();
GByteArray *ssid = string_to_byte_array(CONNECTION_SSID);
g_object_set(G_OBJECT(setting),
NM_SETTING_WIRELESS_SSID, ssid,
NM_SETTING_WIRELESS_MODE, NM_SETTING_WIRELESS_MODE_INFRA,
NULL);
g_byte_array_unref(ssid);
nm_connection_add_setting(con, setting);
/* NMSettingWirelessSecurity */
setting = nm_setting_wireless_security_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_WIRELESS_SECURITY_AUTH_ALG, CONNECTION_AUTH_ALG,
NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, CONNECTION_KEY_MGMT,
NULL);
nm_connection_add_setting(con, setting);
/* NMSetting8021x */
setting = nm_setting_802_1x_new();
/* TODO: Add certificate and subject check */
nm_setting_802_1x_add_eap_method(NM_SETTING_802_1X(setting), CONNECTION_EAP);
g_object_set(setting,
NM_SETTING_802_1X_IDENTITY, user,
NM_SETTING_802_1X_PASSWORD, pass,
NM_SETTING_802_1X_PHASE2_AUTHEAP, CONNECTION_PHASE2_AUTHEAP,
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingIP4Config */
setting = nm_setting_ip4_config_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_IP4_CONFIG_METHOD, "auto",
NULL);
nm_connection_add_setting(con, setting);
/* NMSettingIP6Config */
setting = nm_setting_ip6_config_new();
g_object_set(G_OBJECT(setting),
NM_SETTING_IP6_CONFIG_METHOD, "auto",
NULL);
nm_connection_add_setting(con, setting);
return PAM_SUCCESS;
}
typedef struct {
int ret;
GMainLoop *loop;
NMClient *client;
} cb_arg;
static NMDevice * find_device(NMClient *client) {
size_t i;
const GPtrArray *devices = nm_client_get_devices(client);
for (i = 0; i < devices->len; i++) {
NMDevice *device = g_ptr_array_index(devices, i);
if (nm_device_get_device_type(device) == NM_DEVICE_TYPE_WIFI)
return device;
}
return NULL;
}
static void state_cb(NMDevice *device, UNUSED GParamSpec *pspec, gpointer user_data) {
cb_arg *arg = user_data;
NMActiveConnection *active_connection = nm_device_get_active_connection(device);
if (!active_connection)
return;
NMActiveConnectionState state = nm_active_connection_get_state(active_connection);
if (state != NM_ACTIVE_CONNECTION_STATE_ACTIVATING && state != NM_ACTIVE_CONNECTION_STATE_DEACTIVATING) {
if (state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED)
arg->ret = PAM_SUCCESS;
g_main_loop_quit(arg->loop);
}
}
static void activate_cb(UNUSED NMClient *client, UNUSED NMActiveConnection *active_connection, GError *error, gpointer user_data) {
cb_arg *arg = user_data;
if (error)
goto error;
return;
error:
g_main_loop_quit(arg->loop);
}
static void add_cb(UNUSED NMRemoteSettings *settings, NMRemoteConnection *con, GError *error, gpointer user_data) {
cb_arg *arg = user_data;
if (error)
goto error;
NMDevice *device = find_device(arg->client);
if (!device)
goto error;
g_signal_connect(device, "notify::state", G_CALLBACK(state_cb), arg);
nm_client_activate_connection(arg->client, NM_CONNECTION(con), device, NULL, activate_cb, arg);
return;
error:
g_main_loop_quit(arg->loop);
}
static int authenticate(const char *user, const char *pass) {
DBusGConnection *dbus = NULL;
NMRemoteSettings *settings = NULL;
NMConnection *con = NULL;
cb_arg arg = {};
arg.ret = PAM_SERVICE_ERR;
arg.loop = g_main_loop_new(NULL, FALSE);
arg.client = nm_client_new();
if (!arg.client)
goto end;
dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
if (!dbus)
goto end;
settings = nm_remote_settings_new(dbus);
if (!settings)
goto end;
con = nm_connection_new();
setup_connection(con, user, pass);
if (!nm_remote_settings_add_connection_unsaved(settings, con, add_cb, &arg))
goto end;
arg.ret = PAM_AUTH_ERR;
g_main_loop_run(arg.loop);
end:
g_object_unref(con);
g_object_unref(settings);
dbus_g_connection_unref(dbus);
g_object_unref(arg.client);
g_main_loop_unref(arg.loop);
return arg.ret;
}
int main() {
char buf[1024];
size_t len = 0;
while (len < sizeof(buf)-1) {
size_t r = fread(buf+len, 1, sizeof(buf)-len-1, stdin);
if (!r)
break;
len += r;
}
buf[len] = 0;
const char *user = buf;
const char *pass = user + strlen(user) + 1;
if (pass > buf+len)
return PAM_SYSTEM_ERR;
return authenticate(user, pass);
}