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NetworkManager/clients/common/nm-secret-agent-simple.c
Lubomir Rintel 24028a2246 all: SPDX header conversion 
$ find * -type f |xargs perl contrib/scripts/spdx.pl
  $ git rm contrib/scripts/spdx.pl
2019-09-10 11:19:56 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2011-2015 Red Hat, Inc.
* Copyright 2011 Giovanni Campagna <scampa.giovanni@gmail.com>
*/
/**
* SECTION:nm-secret-agent-simple
* @short_description: A simple secret agent for NetworkManager
*
* #NMSecretAgentSimple is the secret agent used by nmtui-connect and nmcli.
*
* This is a stripped-down version of gnome-shell's ShellNetworkAgent,
* with bits of the corresponding JavaScript code squished down into
* it. It is intended to eventually be generic enough that it could
* replace ShellNetworkAgent.
*/
#include "nm-default.h"
#include "nm-secret-agent-simple.h"
#include <gio/gunixoutputstream.h>
#include <gio/gunixinputstream.h>
#include "nm-vpn-service-plugin.h"
#include "nm-vpn-helpers.h"
#include "nm-glib-aux/nm-secret-utils.h"
/*****************************************************************************/
typedef struct {
char *request_id;
NMSecretAgentSimple *self;
NMConnection *connection;
const char *setting_name;
char **hints;
NMSecretAgentOldGetSecretsFunc callback;
gpointer callback_data;
GCancellable *cancellable;
NMSecretAgentGetSecretsFlags flags;
} RequestData;
enum {
REQUEST_SECRETS,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
typedef struct {
GHashTable *requests;
char *path;
gboolean enabled;
} NMSecretAgentSimplePrivate;
struct _NMSecretAgentSimple {
NMSecretAgentOld parent;
NMSecretAgentSimplePrivate _priv;
};
struct _NMSecretAgentSimpleClass {
NMSecretAgentOldClass parent;
};
G_DEFINE_TYPE (NMSecretAgentSimple, nm_secret_agent_simple, NM_TYPE_SECRET_AGENT_OLD)
#define NM_SECRET_AGENT_SIMPLE_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMSecretAgentSimple, NM_IS_SECRET_AGENT_SIMPLE, NMSecretAgentOld)
/*****************************************************************************/
static void
_request_data_free (gpointer data)
{
RequestData *request = data;
g_free (request->request_id);
nm_clear_g_cancellable (&request->cancellable);
g_object_unref (request->connection);
g_strfreev (request->hints);
g_slice_free (RequestData, request);
}
static void
_request_data_complete (RequestData *request,
GVariant *secrets,
GError *error,
GHashTableIter *iter_to_remove)
{
NMSecretAgentSimple *self = request->self;
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (self);
nm_assert ((secrets != NULL) != (error != NULL));
request->callback (NM_SECRET_AGENT_OLD (request->self),
request->connection,
secrets,
error,
request->callback_data);
if (iter_to_remove)
g_hash_table_iter_remove (iter_to_remove);
else
g_hash_table_remove (priv->requests, request);
}
/*****************************************************************************/
/**
* NMSecretAgentSimpleSecret:
* @name: the user-visible name of the secret. Eg, "WEP Passphrase".
* @value: the value of the secret
* @password: %TRUE if this secret represents a password, %FALSE
* if it represents non-secret data.
*
* A single "secret" being requested.
*/
typedef struct {
NMSecretAgentSimpleSecret base;
NMSetting *setting;
char *property;
} SecretReal;
static void
_secret_real_free (NMSecretAgentSimpleSecret *secret)
{
SecretReal *real = (SecretReal *)secret;
g_free ((char *) secret->pretty_name);
g_free ((char *) secret->entry_id);
nm_free_secret (secret->value);
g_free ((char *) secret->vpn_type);
g_free (real->property);
g_clear_object (&real->setting);
g_slice_free (SecretReal, real);
}
static NMSecretAgentSimpleSecret *
_secret_real_new_plain (NMSecretAgentSecretType secret_type,
const char *pretty_name,
NMSetting *setting,
const char *property)
{
SecretReal *real;
gs_free char *value= NULL;
nm_assert (property);
nm_assert (NM_IS_SETTING (setting));
nm_assert (NM_IN_SET (secret_type, NM_SECRET_AGENT_SECRET_TYPE_PROPERTY, NM_SECRET_AGENT_SECRET_TYPE_SECRET));
nm_assert (g_object_class_find_property (G_OBJECT_GET_CLASS (setting), property));
nm_assert ((secret_type == NM_SECRET_AGENT_SECRET_TYPE_SECRET) == nm_setting_get_secret_flags (setting, property, NULL, NULL));
g_object_get (setting, property, &value, NULL);
real = g_slice_new (SecretReal);
*real = (SecretReal) {
.base.secret_type = secret_type,
.base.pretty_name = g_strdup (pretty_name),
.base.entry_id = g_strdup_printf ("%s.%s", nm_setting_get_name (setting), property),
.base.value = g_steal_pointer (&value),
.base.is_secret = (secret_type != NM_SECRET_AGENT_SECRET_TYPE_PROPERTY),
.setting = g_object_ref (setting),
.property = g_strdup (property),
};
return &real->base;
}
static NMSecretAgentSimpleSecret *
_secret_real_new_vpn_secret (const char *pretty_name,
NMSetting *setting,
const char *property,
const char *vpn_type)
{
SecretReal *real;
const char *value;
nm_assert (property);
nm_assert (NM_IS_SETTING_VPN (setting));
nm_assert (vpn_type);
value = nm_setting_vpn_get_secret (NM_SETTING_VPN (setting), property);
real = g_slice_new (SecretReal);
*real = (SecretReal) {
.base.secret_type = NM_SECRET_AGENT_SECRET_TYPE_VPN_SECRET,
.base.pretty_name = g_strdup (pretty_name),
.base.entry_id = g_strdup_printf ("%s%s", NM_SECRET_AGENT_ENTRY_ID_PREFX_VPN_SECRETS, property),
.base.value = g_strdup (value),
.base.is_secret = TRUE,
.base.vpn_type = g_strdup (vpn_type),
.setting = g_object_ref (setting),
.property = g_strdup (property),
};
return &real->base;
}
static NMSecretAgentSimpleSecret *
_secret_real_new_wireguard_peer_psk (NMSettingWireGuard *s_wg,
const char *public_key,
const char *preshared_key)
{
SecretReal *real;
nm_assert (NM_IS_SETTING_WIREGUARD (s_wg));
nm_assert (public_key);
real = g_slice_new (SecretReal);
*real = (SecretReal) {
.base.secret_type = NM_SECRET_AGENT_SECRET_TYPE_WIREGUARD_PEER_PSK,
.base.pretty_name = g_strdup_printf (_("Preshared-key for %s"),
public_key),
.base.entry_id = g_strdup_printf (NM_SETTING_WIREGUARD_SETTING_NAME"."NM_SETTING_WIREGUARD_PEERS".%s."NM_WIREGUARD_PEER_ATTR_PRESHARED_KEY,
public_key),
.base.value = g_strdup (preshared_key),
.base.is_secret = TRUE,
.base.no_prompt_entry_id = TRUE,
.setting = NM_SETTING (g_object_ref (s_wg)),
.property = g_strdup (public_key),
};
return &real->base;
}
/*****************************************************************************/
static gboolean
add_8021x_secrets (RequestData *request,
GPtrArray *secrets)
{
NMSetting8021x *s_8021x = nm_connection_get_setting_802_1x (request->connection);
const char *eap_method;
NMSecretAgentSimpleSecret *secret;
/* If hints are given, then always ask for what the hints require */
if (request->hints && request->hints[0]) {
char **iter;
for (iter = request->hints; *iter; iter++) {
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_(*iter),
NM_SETTING (s_8021x),
*iter);
g_ptr_array_add (secrets, secret);
}
return TRUE;
}
eap_method = nm_setting_802_1x_get_eap_method (s_8021x, 0);
if (!eap_method)
return FALSE;
if (NM_IN_STRSET (eap_method, "md5",
"leap",
"ttls",
"peap")) {
/* TTLS and PEAP are actually much more complicated, but this complication
* is not visible here since we only care about phase2 authentication
* (and don't even care of which one)
*/
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_PROPERTY,
_("Username"),
NM_SETTING (s_8021x),
NM_SETTING_802_1X_IDENTITY);
g_ptr_array_add (secrets, secret);
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_8021x),
NM_SETTING_802_1X_PASSWORD);
g_ptr_array_add (secrets, secret);
return TRUE;
}
if (nm_streq (eap_method, "tls")) {
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_PROPERTY,
_("Identity"),
NM_SETTING (s_8021x),
NM_SETTING_802_1X_IDENTITY);
g_ptr_array_add (secrets, secret);
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Private key password"),
NM_SETTING (s_8021x),
NM_SETTING_802_1X_PRIVATE_KEY_PASSWORD);
g_ptr_array_add (secrets, secret);
return TRUE;
}
return FALSE;
}
static gboolean
add_wireless_secrets (RequestData *request,
GPtrArray *secrets)
{
NMSettingWirelessSecurity *s_wsec = nm_connection_get_setting_wireless_security (request->connection);
const char *key_mgmt = nm_setting_wireless_security_get_key_mgmt (s_wsec);
NMSecretAgentSimpleSecret *secret;
if (!key_mgmt)
return FALSE;
if (NM_IN_STRSET (key_mgmt, "wpa-psk", "sae")) {
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_wsec),
NM_SETTING_WIRELESS_SECURITY_PSK);
g_ptr_array_add (secrets, secret);
return TRUE;
}
if (nm_streq (key_mgmt, "none")) {
guint32 index;
char key[100];
index = nm_setting_wireless_security_get_wep_tx_keyidx (s_wsec);
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Key"),
NM_SETTING (s_wsec),
nm_sprintf_buf (key, "wep-key%u", (guint) index));
g_ptr_array_add (secrets, secret);
return TRUE;
}
if (nm_streq (key_mgmt, "iee8021x")) {
if (nm_streq0 (nm_setting_wireless_security_get_auth_alg (s_wsec), "leap")) {
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_wsec),
NM_SETTING_WIRELESS_SECURITY_LEAP_PASSWORD);
g_ptr_array_add (secrets, secret);
return TRUE;
} else
return add_8021x_secrets (request, secrets);
}
if (nm_streq (key_mgmt, "wpa-eap"))
return add_8021x_secrets (request, secrets);
return FALSE;
}
static gboolean
add_pppoe_secrets (RequestData *request,
GPtrArray *secrets)
{
NMSettingPppoe *s_pppoe = nm_connection_get_setting_pppoe (request->connection);
NMSecretAgentSimpleSecret *secret;
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_PROPERTY,
_("Username"),
NM_SETTING (s_pppoe),
NM_SETTING_PPPOE_USERNAME);
g_ptr_array_add (secrets, secret);
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_PROPERTY,
_("Service"),
NM_SETTING (s_pppoe),
NM_SETTING_PPPOE_SERVICE);
g_ptr_array_add (secrets, secret);
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_pppoe),
NM_SETTING_PPPOE_PASSWORD);
g_ptr_array_add (secrets, secret);
return TRUE;
}
static NMSettingSecretFlags
get_vpn_secret_flags (NMSettingVpn *s_vpn, const char *secret_name)
{
NMSettingSecretFlags flags = NM_SETTING_SECRET_FLAG_NONE;
GHashTable *vpn_data;
g_object_get (s_vpn, NM_SETTING_VPN_DATA, &vpn_data, NULL);
nm_vpn_service_plugin_get_secret_flags (vpn_data, secret_name, &flags);
g_hash_table_unref (vpn_data);
return flags;
}
static void
add_vpn_secret_helper (GPtrArray *secrets, NMSettingVpn *s_vpn, const char *name, const char *ui_name)
{
NMSecretAgentSimpleSecret *secret;
NMSettingSecretFlags flags;
int i;
flags = get_vpn_secret_flags (s_vpn, name);
if ( flags & NM_SETTING_SECRET_FLAG_AGENT_OWNED
|| flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) {
secret = _secret_real_new_vpn_secret (ui_name,
NM_SETTING (s_vpn),
name,
nm_setting_vpn_get_service_type (s_vpn));
/* Check for duplicates */
for (i = 0; i < secrets->len; i++) {
NMSecretAgentSimpleSecret *s = secrets->pdata[i];
if ( s->secret_type == secret->secret_type
&& nm_streq0 (s->vpn_type, secret->vpn_type)
&& nm_streq0 (s->entry_id, secret->entry_id)) {
_secret_real_free (secret);
return;
}
}
g_ptr_array_add (secrets, secret);
}
}
#define VPN_MSG_TAG "x-vpn-message:"
static gboolean
add_vpn_secrets (RequestData *request,
GPtrArray *secrets,
char **msg)
{
NMSettingVpn *s_vpn = nm_connection_get_setting_vpn (request->connection);
const VpnPasswordName *secret_names, *p;
const char *vpn_msg = NULL;
char **iter;
/* If hints are given, then always ask for what the hints require */
if (request->hints) {
for (iter = request->hints; *iter; iter++) {
if (!vpn_msg && g_str_has_prefix (*iter, VPN_MSG_TAG))
vpn_msg = &(*iter)[NM_STRLEN (VPN_MSG_TAG)];
else
add_vpn_secret_helper (secrets, s_vpn, *iter, *iter);
}
}
NM_SET_OUT (msg, g_strdup (vpn_msg));
/* Now add what client thinks might be required, because hints may be empty or incomplete */
p = secret_names = nm_vpn_get_secret_names (nm_setting_vpn_get_service_type (s_vpn));
while (p && p->name) {
add_vpn_secret_helper (secrets, s_vpn, p->name, _(p->ui_name));
p++;
}
return TRUE;
}
static gboolean
add_wireguard_secrets (RequestData *request,
GPtrArray *secrets,
char **msg,
GError **error)
{
NMSettingWireGuard *s_wg;
NMSecretAgentSimpleSecret *secret;
guint i;
s_wg = NM_SETTING_WIREGUARD (nm_connection_get_setting (request->connection, NM_TYPE_SETTING_WIREGUARD));
if (!s_wg) {
g_set_error (error, NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Cannot service a WireGuard secrets request %s for a connection without WireGuard settings",
request->request_id);
return FALSE;
}
if ( !request->hints
|| !request->hints[0]
|| g_strv_contains (NM_CAST_STRV_CC (request->hints), NM_SETTING_WIREGUARD_PRIVATE_KEY)) {
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("WireGuard private-key"),
NM_SETTING (s_wg),
NM_SETTING_WIREGUARD_PRIVATE_KEY);
g_ptr_array_add (secrets, secret);
}
if (request->hints) {
for (i = 0; request->hints[i]; i++) {
NMWireGuardPeer *peer;
const char *name = request->hints[i];
gs_free char *public_key = NULL;
if (nm_streq (name, NM_SETTING_WIREGUARD_PRIVATE_KEY))
continue;
if (NM_STR_HAS_PREFIX (name, NM_SETTING_WIREGUARD_PEERS".")) {
const char *tmp;
tmp = &name[NM_STRLEN (NM_SETTING_WIREGUARD_PEERS".")];
if (NM_STR_HAS_SUFFIX (tmp, "."NM_WIREGUARD_PEER_ATTR_PRESHARED_KEY)) {
public_key = g_strndup (tmp,
strlen (tmp) - NM_STRLEN ("."NM_WIREGUARD_PEER_ATTR_PRESHARED_KEY));
}
}
if (!public_key)
continue;
peer = nm_setting_wireguard_get_peer_by_public_key (s_wg, public_key, NULL);
g_ptr_array_add (secrets, _secret_real_new_wireguard_peer_psk (s_wg,
( peer
? nm_wireguard_peer_get_public_key (peer)
: public_key),
( peer
? nm_wireguard_peer_get_preshared_key (peer)
: NULL)));
}
}
*msg = g_strdup_printf (_("Secrets are required to connect WireGuard VPN '%s'"),
nm_connection_get_id (request->connection));
return TRUE;
}
typedef struct {
GPid auth_dialog_pid;
GString *auth_dialog_response;
RequestData *request;
GPtrArray *secrets;
GCancellable *cancellable;
gulong cancellable_id;
guint child_watch_id;
GInputStream *input_stream;
GOutputStream *output_stream;
char read_buf[5];
} AuthDialogData;
static void
_auth_dialog_data_free (AuthDialogData *data)
{
nm_clear_g_signal_handler (data->cancellable, &data->cancellable_id);
g_clear_object (&data->cancellable);
nm_clear_g_source (&data->child_watch_id);
g_ptr_array_unref (data->secrets);
g_spawn_close_pid (data->auth_dialog_pid);
g_string_free (data->auth_dialog_response, TRUE);
g_object_unref (data->input_stream);
g_object_unref (data->output_stream);
g_slice_free (AuthDialogData, data);
}
static void
_auth_dialog_exited (GPid pid, int status, gpointer user_data)
{
AuthDialogData *data = user_data;
RequestData *request = data->request;
GPtrArray *secrets = data->secrets;
NMSettingVpn *s_vpn = nm_connection_get_setting_vpn (request->connection);
gs_unref_keyfile GKeyFile *keyfile = NULL;
gs_strfreev char **groups = NULL;
gs_free char *title = NULL;
gs_free char *message = NULL;
int i;
gs_free_error GError *error = NULL;
data->child_watch_id = 0;
nm_clear_g_cancellable_disconnect (data->cancellable, &data->cancellable_id);
if (status != 0) {
g_set_error (&error, NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Auth dialog failed with error code %d\n", status);
goto out;
}
keyfile = g_key_file_new ();
if (!g_key_file_load_from_data (keyfile,
data->auth_dialog_response->str,
data->auth_dialog_response->len, G_KEY_FILE_NONE,
&error)) {
goto out;
}
groups = g_key_file_get_groups (keyfile, NULL);
if (!nm_streq0 (groups[0], "VPN Plugin UI")) {
g_set_error (&error, NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Expected [VPN Plugin UI] in auth dialog response");
goto out;
}
title = g_key_file_get_string (keyfile, "VPN Plugin UI", "Title", &error);
if (!title)
goto out;
message = g_key_file_get_string (keyfile, "VPN Plugin UI", "Description", &error);
if (!message)
goto out;
for (i = 1; groups[i]; i++) {
gs_free char *pretty_name = NULL;
if (!g_key_file_get_boolean (keyfile, groups[i], "IsSecret", NULL))
continue;
if (!g_key_file_get_boolean (keyfile, groups[i], "ShouldAsk", NULL))
continue;
pretty_name = g_key_file_get_string (keyfile, groups[i], "Label", NULL);
g_ptr_array_add (secrets, _secret_real_new_vpn_secret (pretty_name,
NM_SETTING (s_vpn),
groups[i],
nm_setting_vpn_get_service_type (s_vpn)));
}
out:
/* Try to fall back to the hardwired VPN support if the auth dialog fails.
* We may eventually get rid of the whole hardwired secrets handling at some point,
* when the auth helpers are goode enough.. */
if (error && add_vpn_secrets (request, secrets, &message)) {
g_clear_error (&error);
if (!message) {
message = g_strdup_printf (_("A password is required to connect to '%s'."),
nm_connection_get_id (request->connection));
}
}
if (error)
_request_data_complete (request, NULL, error, NULL);
else {
g_signal_emit (request->self, signals[REQUEST_SECRETS], 0,
request->request_id, title, message, secrets);
}
_auth_dialog_data_free (data);
}
static void
_request_cancelled (GObject *object, gpointer user_data)
{
_auth_dialog_data_free (user_data);
}
static void
_auth_dialog_read_done (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GInputStream *auth_dialog_out = G_INPUT_STREAM (source_object);
AuthDialogData *data = user_data;
gssize read_size;
gs_free_error GError *error = NULL;
read_size = g_input_stream_read_finish (auth_dialog_out, res, &error);
switch (read_size) {
case -1:
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
_request_data_complete (data->request, NULL, error, NULL);
_auth_dialog_data_free (data);
break;
case 0:
/* Done reading. Let's wait for the auth dialog to exit so that we're able to collect the status.
* Remember we can be cancelled in between. */
data->child_watch_id = g_child_watch_add (data->auth_dialog_pid, _auth_dialog_exited, data);
data->cancellable = g_object_ref (data->request->cancellable);
data->cancellable_id = g_cancellable_connect (data->cancellable,
G_CALLBACK (_request_cancelled), data, NULL);
break;
default:
g_string_append_len (data->auth_dialog_response, data->read_buf, read_size);
g_input_stream_read_async (auth_dialog_out,
data->read_buf,
sizeof (data->read_buf),
G_PRIORITY_DEFAULT,
NULL,
_auth_dialog_read_done,
data);
return;
}
g_input_stream_close (auth_dialog_out, NULL, NULL);
}
static void
_auth_dialog_write_done (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GOutputStream *auth_dialog_out = G_OUTPUT_STREAM (source_object);
_nm_unused gs_free char *auth_dialog_request_free = user_data;
/* We don't care about write errors. If there are any problems, the
* reader shall notice. */
g_output_stream_write_finish (auth_dialog_out, res, NULL);
g_output_stream_close (auth_dialog_out, NULL, NULL);
}
static void
_add_to_string (GString *string, const char *key, const char *value)
{
gs_strfreev char **lines = NULL;
int i;
lines = g_strsplit (value, "\n", -1);
g_string_append (string, key);
for (i = 0; lines[i]; i++) {
g_string_append_c (string, '=');
g_string_append (string, lines[i]);
g_string_append_c (string, '\n');
}
}
static void
_add_data_item_to_string (const char *key, const char *value, gpointer user_data)
{
GString *string = user_data;
_add_to_string (string, "DATA_KEY", key);
_add_to_string (string, "DATA_VAL", value);
g_string_append_c (string, '\n');
}
static void
_add_secret_to_string (const char *key, const char *value, gpointer user_data)
{
GString *string = user_data;
_add_to_string (string, "SECRET_KEY", key);
_add_to_string (string, "SECRET_VAL", value);
g_string_append_c (string, '\n');
}
static gboolean
try_spawn_vpn_auth_helper (RequestData *request,
GPtrArray *secrets)
{
NMSettingVpn *s_vpn = nm_connection_get_setting_vpn (request->connection);
gs_unref_ptrarray GPtrArray *auth_dialog_argv = NULL;
NMVpnPluginInfo *plugin_info;
const char *s;
GPid auth_dialog_pid;
int auth_dialog_in_fd;
int auth_dialog_out_fd;
GOutputStream *auth_dialog_in;
GInputStream *auth_dialog_out;
GError *error = NULL;
GString *auth_dialog_request;
char *auth_dialog_request_str;
gsize auth_dialog_request_len;
AuthDialogData *data;
int i;
plugin_info = nm_vpn_plugin_info_list_find_by_service (nm_vpn_get_plugin_infos (),
nm_setting_vpn_get_service_type (s_vpn));
if (!plugin_info)
return FALSE;
s = nm_vpn_plugin_info_lookup_property (plugin_info, "GNOME", "supports-external-ui-mode");
if (!_nm_utils_ascii_str_to_bool (s, FALSE))
return FALSE;
auth_dialog_argv = g_ptr_array_new ();
s = nm_vpn_plugin_info_lookup_property (plugin_info, "GNOME", "auth-dialog");
g_return_val_if_fail (s, FALSE);
g_ptr_array_add (auth_dialog_argv, (gpointer) s);
g_ptr_array_add (auth_dialog_argv, "-u");
g_ptr_array_add (auth_dialog_argv, (gpointer) nm_connection_get_uuid (request->connection));
g_ptr_array_add (auth_dialog_argv, "-n");
g_ptr_array_add (auth_dialog_argv, (gpointer) nm_connection_get_id (request->connection));
g_ptr_array_add (auth_dialog_argv, "-s");
g_ptr_array_add (auth_dialog_argv, (gpointer) nm_setting_vpn_get_service_type (s_vpn));
g_ptr_array_add (auth_dialog_argv, "--external-ui-mode");
g_ptr_array_add (auth_dialog_argv, "-i");
if (request->flags & NM_SECRET_AGENT_GET_SECRETS_FLAG_REQUEST_NEW)
g_ptr_array_add (auth_dialog_argv, "-r");
s = nm_vpn_plugin_info_lookup_property (plugin_info, "GNOME", "supports-hints");
if (_nm_utils_ascii_str_to_bool (s, FALSE)) {
for (i = 0; request->hints[i]; i++) {
g_ptr_array_add (auth_dialog_argv, "-t");
g_ptr_array_add (auth_dialog_argv, request->hints[i]);
}
}
g_ptr_array_add (auth_dialog_argv, NULL);
if (!g_spawn_async_with_pipes (NULL, (char **) auth_dialog_argv->pdata, NULL,
G_SPAWN_DO_NOT_REAP_CHILD,
NULL, NULL,
&auth_dialog_pid,
&auth_dialog_in_fd,
&auth_dialog_out_fd,
NULL,
&error)) {
g_warning ("Failed to spawn the auth dialog%s\n", error->message);
return FALSE;
}
auth_dialog_in = g_unix_output_stream_new (auth_dialog_in_fd, TRUE);
auth_dialog_out = g_unix_input_stream_new (auth_dialog_out_fd, TRUE);
auth_dialog_request = g_string_new_len (NULL, 1024);
nm_setting_vpn_foreach_data_item (s_vpn, _add_data_item_to_string, auth_dialog_request);
nm_setting_vpn_foreach_secret (s_vpn, _add_secret_to_string, auth_dialog_request);
g_string_append (auth_dialog_request, "DONE\nQUIT\n");
auth_dialog_request_len = auth_dialog_request->len;
auth_dialog_request_str = g_string_free (auth_dialog_request, FALSE);
data = g_slice_new (AuthDialogData);
*data = (AuthDialogData) {
.auth_dialog_response = g_string_new_len (NULL, sizeof (data->read_buf)),
.auth_dialog_pid = auth_dialog_pid,
.request = request,
.secrets = g_ptr_array_ref (secrets),
.input_stream = auth_dialog_out,
.output_stream = auth_dialog_in,
};
g_output_stream_write_async (auth_dialog_in,
auth_dialog_request_str,
auth_dialog_request_len,
G_PRIORITY_DEFAULT,
request->cancellable,
_auth_dialog_write_done,
auth_dialog_request_str);
g_input_stream_read_async (auth_dialog_out,
data->read_buf,
sizeof (data->read_buf),
G_PRIORITY_DEFAULT,
request->cancellable,
_auth_dialog_read_done,
data);
return TRUE;
}
static void
request_secrets_from_ui (RequestData *request)
{
gs_unref_ptrarray GPtrArray *secrets = NULL;
gs_free_error GError *error = NULL;
NMSecretAgentSimplePrivate *priv;
NMSecretAgentSimpleSecret *secret;
const char *title;
gs_free char *msg = NULL;
priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (request->self);
g_return_if_fail (priv->enabled);
/* We only handle requests for connection with @path if set. */
if (priv->path && !g_str_has_prefix (request->request_id, priv->path)) {
g_set_error (&error, NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Request for %s secrets doesn't match path %s",
request->request_id, priv->path);
goto out_fail_error;
}
secrets = g_ptr_array_new_with_free_func ((GDestroyNotify) _secret_real_free);
if (nm_connection_is_type (request->connection, NM_SETTING_WIRELESS_SETTING_NAME)) {
NMSettingWireless *s_wireless;
GBytes *ssid;
char *ssid_utf8;
s_wireless = nm_connection_get_setting_wireless (request->connection);
ssid = nm_setting_wireless_get_ssid (s_wireless);
ssid_utf8 = nm_utils_ssid_to_utf8 (g_bytes_get_data (ssid, NULL),
g_bytes_get_size (ssid));
title = _("Authentication required by wireless network");
msg = g_strdup_printf (_("Passwords or encryption keys are required to access the wireless network '%s'."), ssid_utf8);
if (!add_wireless_secrets (request, secrets))
goto out_fail;
} else if (nm_connection_is_type (request->connection, NM_SETTING_WIRED_SETTING_NAME)) {
title = _("Wired 802.1X authentication");
msg = g_strdup_printf (_("Secrets are required to access the wired network '%s'"),
nm_connection_get_id (request->connection));
if (!add_8021x_secrets (request, secrets))
goto out_fail;
} else if (nm_connection_is_type (request->connection, NM_SETTING_PPPOE_SETTING_NAME)) {
title = _("DSL authentication");
msg = g_strdup_printf (_("Secrets are required for the DSL connection '%s'"),
nm_connection_get_id (request->connection));
if (!add_pppoe_secrets (request, secrets))
goto out_fail;
} else if (nm_connection_is_type (request->connection, NM_SETTING_GSM_SETTING_NAME)) {
NMSettingGsm *s_gsm = nm_connection_get_setting_gsm (request->connection);
if (g_strv_contains (NM_CAST_STRV_CC (request->hints), NM_SETTING_GSM_PIN)) {
title = _("PIN code required");
msg = g_strdup (_("PIN code is needed for the mobile broadband device"));
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("PIN"),
NM_SETTING (s_gsm),
NM_SETTING_GSM_PIN);
g_ptr_array_add (secrets, secret);
} else {
title = _("Mobile broadband network password");
msg = g_strdup_printf (_("A password is required to connect to '%s'."),
nm_connection_get_id (request->connection));
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_gsm),
NM_SETTING_GSM_PASSWORD);
g_ptr_array_add (secrets, secret);
}
} else if (nm_connection_is_type (request->connection, NM_SETTING_MACSEC_SETTING_NAME)) {
NMSettingMacsec *s_macsec = nm_connection_get_setting_macsec (request->connection);
msg = g_strdup_printf (_("Secrets are required to access the MACsec network '%s'"),
nm_connection_get_id (request->connection));
if (nm_setting_macsec_get_mode (s_macsec) == NM_SETTING_MACSEC_MODE_PSK) {
title = _("MACsec PSK authentication");
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("MKA CAK"),
NM_SETTING (s_macsec),
NM_SETTING_MACSEC_MKA_CAK);
g_ptr_array_add (secrets, secret);
} else {
title = _("MACsec EAP authentication");
if (!add_8021x_secrets (request, secrets))
goto out_fail;
}
} else if (nm_connection_is_type (request->connection, NM_SETTING_WIREGUARD_SETTING_NAME)) {
title = _("WireGuard VPN secret");
if (!add_wireguard_secrets (request, secrets, &msg, &error))
goto out_fail_error;
} else if (nm_connection_is_type (request->connection, NM_SETTING_CDMA_SETTING_NAME)) {
NMSettingCdma *s_cdma = nm_connection_get_setting_cdma (request->connection);
title = _("Mobile broadband network password");
msg = g_strdup_printf (_("A password is required to connect to '%s'."),
nm_connection_get_id (request->connection));
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
NM_SETTING (s_cdma),
NM_SETTING_CDMA_PASSWORD);
g_ptr_array_add (secrets, secret);
} else if (nm_connection_is_type (request->connection, NM_SETTING_BLUETOOTH_SETTING_NAME)) {
NMSetting *setting = NULL;
setting = nm_connection_get_setting_by_name (request->connection, NM_SETTING_BLUETOOTH_SETTING_NAME);
if ( setting
&& !nm_streq0 (nm_setting_bluetooth_get_connection_type (NM_SETTING_BLUETOOTH (setting)), NM_SETTING_BLUETOOTH_TYPE_NAP)) {
setting = nm_connection_get_setting_by_name (request->connection, NM_SETTING_GSM_SETTING_NAME);
if (!setting)
setting = nm_connection_get_setting_by_name (request->connection, NM_SETTING_CDMA_SETTING_NAME);
}
if (!setting)
goto out_fail;
title = _("Mobile broadband network password");
msg = g_strdup_printf (_("A password is required to connect to '%s'."),
nm_connection_get_id (request->connection));
secret = _secret_real_new_plain (NM_SECRET_AGENT_SECRET_TYPE_SECRET,
_("Password"),
setting,
"password");
g_ptr_array_add (secrets, secret);
} else if (nm_connection_is_type (request->connection, NM_SETTING_VPN_SETTING_NAME)) {
title = _("VPN password required");
if (try_spawn_vpn_auth_helper (request, secrets)) {
/* This will emit REQUEST_SECRETS when ready */
return;
}
if (!add_vpn_secrets (request, secrets, &msg))
goto out_fail;
if (!msg) {
msg = g_strdup_printf (_("A password is required to connect to '%s'."),
nm_connection_get_id (request->connection));
}
} else
goto out_fail;
if (secrets->len == 0)
goto out_fail;
g_signal_emit (request->self, signals[REQUEST_SECRETS], 0,
request->request_id, title, msg, secrets);
return;
out_fail:
g_set_error (&error, NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Cannot service a secrets request %s for a %s connection",
request->request_id,
nm_connection_get_connection_type (request->connection));
out_fail_error:
_request_data_complete (request, NULL, error, NULL);
}
static void
get_secrets (NMSecretAgentOld *agent,
NMConnection *connection,
const char *connection_path,
const char *setting_name,
const char **hints,
NMSecretAgentGetSecretsFlags flags,
NMSecretAgentOldGetSecretsFunc callback,
gpointer callback_data)
{
NMSecretAgentSimple *self = NM_SECRET_AGENT_SIMPLE (agent);
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (self);
RequestData *request;
gs_free_error GError *error = NULL;
gs_free char *request_id = NULL;
const char *request_id_setting_name;
request_id = g_strdup_printf ("%s/%s", connection_path, setting_name);
if (g_hash_table_contains (priv->requests, &request_id)) {
/* We already have a request pending for this (connection, setting) */
error = g_error_new (NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_FAILED,
"Request for %s secrets already pending", request_id);
callback (agent, connection, NULL, error, callback_data);
return;
}
if (!(flags & NM_SECRET_AGENT_GET_SECRETS_FLAG_ALLOW_INTERACTION)) {
/* We don't do stored passwords */
error = g_error_new (NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_NO_SECRETS,
"Stored passwords not supported");
callback (agent, connection, NULL, error, callback_data);
return;
}
nm_assert (g_str_has_suffix (request_id, setting_name));
request_id_setting_name = &request_id[strlen (request_id) - strlen (setting_name)];
nm_assert (nm_streq (request_id_setting_name, setting_name));
request = g_slice_new (RequestData);
*request = (RequestData) {
.self = self,
.connection = g_object_ref (connection),
.setting_name = request_id_setting_name,
.hints = g_strdupv ((char **) hints),
.callback = callback,
.callback_data = callback_data,
.request_id = g_steal_pointer (&request_id),
.flags = flags,
.cancellable = g_cancellable_new (),
};
g_hash_table_add (priv->requests, request);
if (priv->enabled)
request_secrets_from_ui (request);
}
/**
* nm_secret_agent_simple_response:
* @self: the #NMSecretAgentSimple
* @request_id: the request ID being responded to
* @secrets: (allow-none): the array of secrets, or %NULL
*
* Response to a #NMSecretAgentSimple::get-secrets signal.
*
* If the user provided secrets, the caller should set the
* corresponding <literal>value</literal> fields in the
* #NMSecretAgentSimpleSecrets (freeing any initial values they had), and
* pass the array to nm_secret_agent_simple_response(). If the user
* cancelled the request, @secrets should be NULL.
*/
void
nm_secret_agent_simple_response (NMSecretAgentSimple *self,
const char *request_id,
GPtrArray *secrets)
{
NMSecretAgentSimplePrivate *priv;
RequestData *request;
gs_unref_variant GVariant *secrets_dict = NULL;
gs_free_error GError *error = NULL;
int i;
g_return_if_fail (NM_IS_SECRET_AGENT_SIMPLE (self));
priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (self);
request = g_hash_table_lookup (priv->requests, &request_id);
g_return_if_fail (request != NULL);
if (secrets) {
GVariantBuilder conn_builder, *setting_builder;
GVariantBuilder vpn_secrets_builder;
GVariantBuilder wg_secrets_builder;
GVariantBuilder wg_peer_builder;
GHashTable *settings;
GHashTableIter iter;
const char *name;
gboolean has_vpn = FALSE;
gboolean has_wg = FALSE;
settings = g_hash_table_new_full (nm_str_hash,
g_str_equal,
NULL,
(GDestroyNotify) g_variant_builder_unref);
for (i = 0; i < secrets->len; i++) {
SecretReal *secret = secrets->pdata[i];
setting_builder = g_hash_table_lookup (settings, nm_setting_get_name (secret->setting));
if (!setting_builder) {
setting_builder = g_variant_builder_new (NM_VARIANT_TYPE_SETTING);
g_hash_table_insert (settings, (char *) nm_setting_get_name (secret->setting),
setting_builder);
}
switch (secret->base.secret_type) {
case NM_SECRET_AGENT_SECRET_TYPE_PROPERTY:
case NM_SECRET_AGENT_SECRET_TYPE_SECRET:
g_variant_builder_add (setting_builder, "{sv}",
secret->property,
g_variant_new_string (secret->base.value));
break;
case NM_SECRET_AGENT_SECRET_TYPE_VPN_SECRET:
if (!has_vpn) {
g_variant_builder_init (&vpn_secrets_builder, G_VARIANT_TYPE ("a{ss}"));
has_vpn = TRUE;
}
g_variant_builder_add (&vpn_secrets_builder, "{ss}",
secret->property, secret->base.value);
break;
case NM_SECRET_AGENT_SECRET_TYPE_WIREGUARD_PEER_PSK:
if (!has_wg) {
g_variant_builder_init (&wg_secrets_builder, G_VARIANT_TYPE ("aa{sv}"));
has_wg = TRUE;
}
g_variant_builder_init (&wg_peer_builder, G_VARIANT_TYPE ("a{sv}"));
g_variant_builder_add (&wg_peer_builder, "{sv}",
NM_WIREGUARD_PEER_ATTR_PUBLIC_KEY, g_variant_new_string (secret->property));
g_variant_builder_add (&wg_peer_builder, "{sv}",
NM_WIREGUARD_PEER_ATTR_PRESHARED_KEY, g_variant_new_string (secret->base.value));
g_variant_builder_add (&wg_secrets_builder, "a{sv}",
&wg_peer_builder);
break;
}
}
if (has_vpn) {
g_variant_builder_add (setting_builder, "{sv}",
"secrets",
g_variant_builder_end (&vpn_secrets_builder));
}
if (has_wg) {
g_variant_builder_add (setting_builder, "{sv}",
NM_SETTING_WIREGUARD_PEERS,
g_variant_builder_end (&wg_secrets_builder));
}
g_variant_builder_init (&conn_builder, NM_VARIANT_TYPE_CONNECTION);
g_hash_table_iter_init (&iter, settings);
while (g_hash_table_iter_next (&iter, (gpointer *) &name, (gpointer *) &setting_builder))
g_variant_builder_add (&conn_builder, "{sa{sv}}", name, setting_builder);
secrets_dict = g_variant_ref_sink (g_variant_builder_end (&conn_builder));
g_hash_table_destroy (settings);
} else {
error = g_error_new (NM_SECRET_AGENT_ERROR, NM_SECRET_AGENT_ERROR_USER_CANCELED,
"User cancelled");
}
_request_data_complete (request, secrets_dict, error, NULL);
}
static void
cancel_get_secrets (NMSecretAgentOld *agent,
const char *connection_path,
const char *setting_name)
{
NMSecretAgentSimple *self = NM_SECRET_AGENT_SIMPLE (agent);
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (self);
gs_free_error GError *error = NULL;
gs_free char *request_id = NULL;
RequestData *request;
request_id = g_strdup_printf ("%s/%s", connection_path, setting_name);
request = g_hash_table_lookup (priv->requests, &request_id);
if (!request) {
/* this is really a bug of the caller (or us?). We cannot invoke a callback,
* hence the caller cannot cleanup the request. */
g_return_if_reached ();
}
g_set_error (&error,
NM_SECRET_AGENT_ERROR,
NM_SECRET_AGENT_ERROR_AGENT_CANCELED,
"The secret agent is going away");
_request_data_complete (request, NULL, error, NULL);
}
static void
save_secrets (NMSecretAgentOld *agent,
NMConnection *connection,
const char *connection_path,
NMSecretAgentOldSaveSecretsFunc callback,
gpointer callback_data)
{
/* We don't support secret storage */
callback (agent, connection, NULL, callback_data);
}
static void
delete_secrets (NMSecretAgentOld *agent,
NMConnection *connection,
const char *connection_path,
NMSecretAgentOldDeleteSecretsFunc callback,
gpointer callback_data)
{
/* We don't support secret storage, so there's nothing to delete. */
callback (agent, connection, NULL, callback_data);
}
/**
* nm_secret_agent_simple_enable:
* @self: the #NMSecretAgentSimple
* @path: (allow-none): the path of the connection (if any) to handle secrets
* for. If %NULL, secrets for any connection will be handled.
*
* Enables servicing the requests including the already queued ones. If @path
* is given, the agent will only handle requests for connections that match
* @path.
*/
void
nm_secret_agent_simple_enable (NMSecretAgentSimple *self, const char *path)
{
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (self);
gs_free RequestData **requests = NULL;
gsize i;
gs_free char *path_full = NULL;
/* The path is only used to match a request_id with the current
* connection. Since the request_id is "${CONNECTION_PATH}/${SETTING}",
* add a trailing '/' to the path to match the full connection path.
*/
path_full = path ? g_strdup_printf ("%s/", path) : NULL;
if (!nm_streq0 (path_full, priv->path)) {
g_free (priv->path);
priv->path = g_steal_pointer (&path_full);
}
if (priv->enabled)
return;
priv->enabled = TRUE;
/* Service pending secret requests. */
requests = (RequestData **) g_hash_table_get_keys_as_array (priv->requests, NULL);
for (i = 0; requests[i]; i++)
request_secrets_from_ui (requests[i]);
}
/*****************************************************************************/
static void
nm_secret_agent_simple_init (NMSecretAgentSimple *agent)
{
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (agent);
G_STATIC_ASSERT_EXPR (G_STRUCT_OFFSET (RequestData, request_id) == 0);
priv->requests = g_hash_table_new_full (nm_pstr_hash, nm_pstr_equal,
NULL, _request_data_free);
}
/**
* nm_secret_agent_simple_new:
* @name: the identifier of secret agent
*
* Creates a new #NMSecretAgentSimple. It does not serve any requests until
* nm_secret_agent_simple_enable() is called.
*
* Returns: a new #NMSecretAgentSimple if the agent creation is successful
* or %NULL in case of a failure.
*/
NMSecretAgentSimple *
nm_secret_agent_simple_new (const char *name)
{
return g_initable_new (NM_TYPE_SECRET_AGENT_SIMPLE, NULL, NULL,
NM_SECRET_AGENT_OLD_IDENTIFIER, name,
NM_SECRET_AGENT_OLD_CAPABILITIES, NM_SECRET_AGENT_CAPABILITY_VPN_HINTS,
NULL);
}
static void
dispose (GObject *object)
{
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (object);
gs_free_error GError *error = NULL;
GHashTableIter iter;
RequestData *request;
g_hash_table_iter_init (&iter, priv->requests);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &request)) {
if (!error)
nm_utils_error_set_cancelled (&error, TRUE, "NMSecretAgentSimple");
_request_data_complete (request, NULL, error, &iter);
}
G_OBJECT_CLASS (nm_secret_agent_simple_parent_class)->dispose (object);
}
static void
finalize (GObject *object)
{
NMSecretAgentSimplePrivate *priv = NM_SECRET_AGENT_SIMPLE_GET_PRIVATE (object);
g_hash_table_destroy (priv->requests);
g_free (priv->path);
G_OBJECT_CLASS (nm_secret_agent_simple_parent_class)->finalize (object);
}
void
nm_secret_agent_simple_class_init (NMSecretAgentSimpleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
NMSecretAgentOldClass *agent_class = NM_SECRET_AGENT_OLD_CLASS (klass);
object_class->dispose = dispose;
object_class->finalize = finalize;
agent_class->get_secrets = get_secrets;
agent_class->cancel_get_secrets = cancel_get_secrets;
agent_class->save_secrets = save_secrets;
agent_class->delete_secrets = delete_secrets;
/**
* NMSecretAgentSimple::request-secrets:
* @agent: the #NMSecretAgentSimple
* @request_id: request ID, to eventually pass to
* nm_secret_agent_simple_response().
* @title: a title for the password dialog
* @prompt: a prompt message for the password dialog
* @secrets: (element-type #NMSecretAgentSimpleSecret): array of secrets
* being requested.
*
* Emitted when the agent requires secrets from the user.
*
* The application should ask user for the secrets. For example,
* nmtui should create a password dialog (#NmtPasswordDialog)
* with the given title and prompt, and an entry for each
* element of @secrets. If any of the secrets already have a
* <literal>value</literal> filled in, the corresponding entry
* should be initialized to that value.
*
* When the dialog is complete, the app must call
* nm_secret_agent_simple_response() with the results.
*/
signals[REQUEST_SECRETS] = g_signal_new (NM_SECRET_AGENT_SIMPLE_REQUEST_SECRETS,
G_TYPE_FROM_CLASS (klass),
0, 0, NULL, NULL, NULL,
G_TYPE_NONE,
4,
G_TYPE_STRING, /* request_id */
G_TYPE_STRING, /* title */
G_TYPE_STRING, /* prompt */
G_TYPE_PTR_ARRAY);
}
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