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NetworkManager/libnm-core/nm-keyfile-reader.c
Thomas Haller 46d53e1101 keyfile: fix interpreting missing wifi.mac-address-randomization as permanent address 
With commit 4f6c91d696, we aimed to
enable mac-address-randomization by default for Wi-Fi. That however
is not possible by default because it breaks various scenarios.
Also, later wifi.mac-address-randomization was deprecated in favor
of wifi.cloned-mac-address setting.

Both wifi.mac-address-randomization and wifi.cloned-mac-address support
global default values, so it is wrong to read a missing
mac-address-randomization as "NEVER" -- which due to
normalization also results in cloned-mac-address=permanent.
2017-01-09 14:50:33 +01:00

1789 lines
52 KiB
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service - keyfile plugin
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2008 - 2009 Novell, Inc.
* Copyright (C) 2008 - 2015 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-keyfile-internal.h"
#include <errno.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <string.h>
#include "nm-common-macros.h"
#include "nm-core-internal.h"
#include "nm-keyfile-utils.h"
typedef struct {
NMConnection *connection;
GKeyFile *keyfile;
const char *base_dir;
NMKeyfileReadHandler handler;
void *user_data;
GError *error;
const char *group;
NMSetting *setting;
} KeyfileReaderInfo;
static void
_handle_warn (KeyfileReaderInfo *info,
const char *property_name,
NMKeyfileWarnSeverity severity,
char *message)
{
NMKeyfileReadTypeDataWarn type_data = {
.group = info->group,
.setting = info->setting,
.property_name = property_name,
.severity = severity,
.message = message,
};
info->handler (info->keyfile,
info->connection,
NM_KEYFILE_READ_TYPE_WARN,
&type_data,
info->user_data,
&info->error);
g_free (message);
}
#define handle_warn(arg_info, arg_property_name, arg_severity, ...) \
({ \
KeyfileReaderInfo *_info = (arg_info); \
\
if (_info->handler) { \
_handle_warn (_info, (arg_property_name), (arg_severity), \
g_strdup_printf (__VA_ARGS__)); \
} \
_info->error == NULL; \
})
/* Some setting properties also contain setting names, such as
* NMSettingConnection's 'type' property (which specifies the base type of the
* connection, e.g. ethernet or wifi) or 'slave-type' (specifies type of slave
* connection, e.g. bond or bridge). This function handles translating those
* properties' values to the real setting name if they are an alias.
*/
static void
setting_alias_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
char *s;
const char *key_setting_name;
s = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if (s) {
key_setting_name = nm_keyfile_plugin_get_setting_name_for_alias (s);
g_object_set (G_OBJECT (setting),
key, key_setting_name ? key_setting_name : s,
NULL);
g_free (s);
}
}
static void
read_array_of_uint (GKeyFile *file,
NMSetting *setting,
const char *key)
{
gs_unref_array GArray *array = NULL;
gsize length;
gsize i;
gs_free int *tmp = NULL;
tmp = nm_keyfile_plugin_kf_get_integer_list (file, nm_setting_get_name (setting), key, &length, NULL);
if (length > G_MAXUINT)
return;
array = g_array_sized_new (FALSE, FALSE, sizeof (guint), length);
for (i = 0; i < length; i++) {
if (tmp[i] < 0)
return;
g_array_append_val (array, tmp[i]);
}
g_object_set (setting, key, array, NULL);
}
static gboolean
get_one_int (KeyfileReaderInfo *info, const char *property_name, const char *str, guint32 max_val, guint32 *out)
{
long tmp;
char *endptr;
g_return_val_if_fail (!info == !property_name, FALSE);
if (!str || !str[0]) {
if (property_name)
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring missing number"));
return FALSE;
}
errno = 0;
tmp = strtol (str, &endptr, 10);
if (errno || (tmp < 0) || (tmp > max_val) || *endptr != 0) {
if (property_name)
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid number '%s'"),
str);
return FALSE;
}
*out = (guint32) tmp;
return TRUE;
}
static gpointer
build_address (KeyfileReaderInfo *info, int family, const char *address_str, guint32 plen, const char *property_name)
{
NMIPAddress *addr;
GError *error = NULL;
g_return_val_if_fail (address_str, NULL);
addr = nm_ip_address_new (family, address_str, plen, &error);
if (!addr) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid %s address: %s"),
family == AF_INET ? "IPv4" : "IPv6", error->message);
g_error_free (error);
}
return addr;
}
static gpointer
build_route (KeyfileReaderInfo *info,
const char *property_name,
int family,
const char *dest_str, guint32 plen,
const char *gateway_str, const char *metric_str)
{
NMIPRoute *route;
guint32 metric = 0;
GError *error = NULL;
g_return_val_if_fail (plen, NULL);
g_return_val_if_fail (dest_str, NULL);
/* Next hop */
if (gateway_str && gateway_str[0]) {
if (!nm_utils_ipaddr_valid (family, gateway_str)) {
/* Try workaround for routes written by broken keyfile writer.
* Due to bug bgo#719851, an older version of writer would have
* written "a:b:c:d::/plen,metric" if the gateway was ::, instead
* of "a:b:c:d::/plen,,metric" or "a:b:c:d::/plen,::,metric"
* Try workaround by interpreting gateway_str as metric to accept such
* invalid routes. This broken syntax should not be not officially
* supported.
**/
if ( family == AF_INET6
&& !metric_str
&& get_one_int (NULL, NULL, gateway_str, G_MAXUINT32, &metric))
gateway_str = NULL;
else {
if (!info->error) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid gateway '%s' for %s route"),
gateway_str, family == AF_INET ? "IPv4" : "IPv6");
}
return NULL;
}
}
} else
gateway_str = NULL;
/* parse metric, default to 0 */
if (metric_str) {
if (!get_one_int (info, property_name, metric_str, G_MAXUINT32, &metric))
return NULL;
}
route = nm_ip_route_new (family, dest_str, plen, gateway_str,
metric ? (gint64) metric : -1,
&error);
if (!route) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid %s route: %s"),
family == AF_INET ? "IPv4" : "IPv6",
error->message);
g_error_free (error);
}
return route;
}
/* On success, returns pointer to the zero-terminated field (original @current).
* The @current * pointer target is set to point to the rest of the input
* or %NULL if there is no more input. Sets error to %NULL for convenience.
*
* On failure, returns %NULL (unspecified). The @current pointer target is
* resets to its original value to allow skipping fields. The @error target
* is set to the character that breaks the parsing or %NULL if @current was %NULL.
*
* When @current target is %NULL, gracefully fail returning %NULL while
* leaving the @current target %NULL end setting @error to %NULL;
*/
static char *
read_field (char **current, char **error, const char *characters, const char *delimiters)
{
char *start;
g_return_val_if_fail (current, NULL);
g_return_val_if_fail (error, NULL);
g_return_val_if_fail (characters, NULL);
g_return_val_if_fail (delimiters, NULL);
*error = NULL;
if (!*current) {
/* graceful failure, leave '*current' NULL */
return NULL;
}
/* fail on empty input */
if (!**current)
return NULL;
/* remember beginning of input */
start = *current;
while (**current && strchr (characters, **current))
(*current)++;
if (**current)
if (strchr (delimiters, **current)) {
/* success, more data available */
*(*current)++ = '\0';
return start;
} else {
/* error, bad character */
*error = *current;
*current = start;
return NULL;
}
else {
/* success, end of input */
*current = NULL;
return start;
}
}
#define IP_ADDRESS_CHARS "0123456789abcdefABCDEF:.%"
#define DIGITS "0123456789"
#define DELIMITERS "/;,"
/* The following IPv4 and IPv6 address formats are supported:
*
* address (DEPRECATED)
* address/plen
* address/gateway (DEPRECATED)
* address/plen,gateway
*
* The following IPv4 and IPv6 route formats are supported:
*
* address/plen (NETWORK dev DEVICE)
* address/plen,gateway (NETWORK via GATEWAY dev DEVICE)
* address/plen,,metric (NETWORK dev DEVICE metric METRIC)
* address/plen,gateway,metric (NETWORK via GATEWAY dev DEVICE metric METRIC)
*
* For backward, forward and sideward compatibility, slash (/),
* semicolon (;) and comma (,) are interchangable. The choice of
* separator in the above examples is therefore not significant.
*
* Leaving out the prefix length is discouraged and DEPRECATED. The
* default value of IPv6 prefix length was 64 and has not been
* changed. The default for IPv4 is now 24, which is the closest
* IPv4 equivalent. These defaults may just as well be changed to
* match the iproute2 defaults (32 for IPv4 and 128 for IPv6).
*/
static gpointer
read_one_ip_address_or_route (KeyfileReaderInfo *info,
const char *property_name,
const char *setting_name,
const char *key_name,
gboolean ipv6,
gboolean route,
char **out_gateway,
NMSetting *setting)
{
guint32 plen = G_MAXUINT32;
gpointer result;
char *address_str, *plen_str, *gateway_str, *metric_str, *current, *error;
gs_free char *value = NULL, *value_orig = NULL;
#define VALUE_ORIG() (value_orig ? value_orig : (value_orig = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key_name, NULL)))
current = value = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key_name, NULL);
if (!value)
return NULL;
/* get address field */
address_str = read_field (&current, &error, IP_ADDRESS_CHARS, DELIMITERS);
if (error) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("unexpected character '%c' for address %s: '%s' (position %td)"),
*error, key_name, VALUE_ORIG (), error - current);
return NULL;
}
/* get prefix length field (skippable) */
plen_str = read_field (&current, &error, DIGITS, DELIMITERS);
/* get gateway field */
gateway_str = read_field (&current, &error, IP_ADDRESS_CHARS, DELIMITERS);
if (error) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("unexpected character '%c' for %s: '%s' (position %td)"),
*error, key_name, VALUE_ORIG (), error - current);
return NULL;
}
/* for routes, get metric */
if (route) {
metric_str = read_field (&current, &error, DIGITS, DELIMITERS);
if (error) {
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("unexpected character '%c' in prefix length for %s: '%s' (position %td)"),
*error, key_name, VALUE_ORIG (), error - current);
return NULL;
}
} else
metric_str = NULL;
if (current) {
/* there is still some data */
if (*current) {
/* another field follows */
handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("garbage at the end of value %s: '%s'"),
key_name, VALUE_ORIG ());
return NULL;
} else {
/* semicolon at the end of input */
if (!handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_INFO,
_("deprecated semicolon at the end of value %s: '%s'"),
key_name, VALUE_ORIG ()))
return NULL;
}
}
#define DEFAULT_PREFIX(for_route, for_ipv6) ( (for_route) ? ( (for_ipv6) ? 128 : 24 ) : ( (for_ipv6) ? 64 : 24 ) )
/* parse plen, fallback to defaults */
if (plen_str) {
if (!get_one_int (info, property_name, plen_str, ipv6 ? 128 : 32, &plen)
|| (route && plen == 0)) {
plen = DEFAULT_PREFIX (route, ipv6);
if ( info->error
|| !handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid prefix length for %s '%s', defaulting to %d"),
key_name, VALUE_ORIG (), plen))
return NULL;
}
} else {
plen = DEFAULT_PREFIX (route, ipv6);
if (!handle_warn (info, property_name, NM_KEYFILE_WARN_SEVERITY_WARN,
_("missing prefix length for %s '%s', defaulting to %d"),
key_name, VALUE_ORIG (), plen))
return NULL;
}
/* build the appropriate data structure for NetworkManager settings */
if (route) {
result = build_route (info, property_name,
ipv6 ? AF_INET6 : AF_INET,
address_str, plen, gateway_str, metric_str);
} else {
result = build_address (info, ipv6 ? AF_INET6 : AF_INET,
address_str, plen, property_name);
if (!result)
return NULL;
if (out_gateway && gateway_str)
*out_gateway = g_strdup (gateway_str);
}
#undef VALUE_ORIG
return result;
}
static void
ip_address_or_route_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
gboolean ipv6 = !strcmp (setting_name, "ipv6");
gboolean routes = !strcmp (key, "routes");
static const char *key_names_routes[] = { "route", "routes", NULL };
static const char *key_names_addresses[] = { "address", "addresses", NULL };
const char **key_names = routes ? key_names_routes : key_names_addresses;
char *gateway = NULL;
GPtrArray *list;
GDestroyNotify free_func;
int i;
if (routes)
free_func = (GDestroyNotify) nm_ip_route_unref;
else
free_func = (GDestroyNotify) nm_ip_address_unref;
list = g_ptr_array_new_with_free_func (free_func);
for (i = -1; i < 1000; i++) {
const char **key_basename;
for (key_basename = key_names; *key_basename; key_basename++) {
char *key_name;
gpointer item;
/* -1 means no suffix */
if (i >= 0)
key_name = g_strdup_printf ("%s%d", *key_basename, i);
else
key_name = g_strdup (*key_basename);
item = read_one_ip_address_or_route (info, key, setting_name, key_name, ipv6, routes,
gateway ? NULL : &gateway, setting);
g_free (key_name);
if (info->error) {
g_ptr_array_unref (list);
g_free (gateway);
return;
}
if (item)
g_ptr_array_add (list, item);
}
}
if (list->len >= 1)
g_object_set (setting, key, list, NULL);
if (gateway) {
g_object_set (setting, "gateway", gateway, NULL);
g_free (gateway);
}
g_ptr_array_unref (list);
}
static void
ip4_dns_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
GPtrArray *array;
gsize length;
char **list, **iter;
int ret;
list = nm_keyfile_plugin_kf_get_string_list (info->keyfile, setting_name, key, &length, NULL);
if (!list || !g_strv_length (list))
return;
array = g_ptr_array_sized_new (length + 1);
for (iter = list; *iter; iter++) {
guint32 addr;
ret = inet_pton (AF_INET, *iter, &addr);
if (ret <= 0) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid DNS server IPv4 address '%s'"),
*iter)) {
g_ptr_array_unref (array);
g_strfreev (list);
return;
}
continue;
}
g_ptr_array_add (array, *iter);
}
g_ptr_array_add (array, NULL);
g_object_set (setting, key, array->pdata, NULL);
g_ptr_array_unref (array);
g_strfreev (list);
}
static void
ip6_dns_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
GPtrArray *array = NULL;
gsize length;
char **list, **iter;
int ret;
list = nm_keyfile_plugin_kf_get_string_list (info->keyfile, setting_name, key, &length, NULL);
if (!list || !g_strv_length (list))
return;
array = g_ptr_array_sized_new (length + 1);
for (iter = list; *iter; iter++) {
struct in6_addr addr;
ret = inet_pton (AF_INET6, *iter, &addr);
if (ret <= 0) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid DNS server IPv6 address '%s'"),
*iter)) {
g_ptr_array_unref (array);
g_strfreev (list);
return;
}
continue;
}
g_ptr_array_add (array, *iter);
}
g_ptr_array_add (array, NULL);
g_object_set (setting, key, array->pdata, NULL);
g_ptr_array_unref (array);
g_strfreev (list);
}
static void
ip6_addr_gen_mode_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
NMSettingIP6ConfigAddrGenMode addr_gen_mode;
const char *setting_name = nm_setting_get_name (setting);
gs_free char *s = NULL;
s = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if (s) {
if (!nm_utils_enum_from_str (nm_setting_ip6_config_addr_gen_mode_get_type (), s,
(int *) &addr_gen_mode, NULL)) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid option '%s', use one of [%s]"),
s, "eui64,stable-privacy");
return;
}
} else
addr_gen_mode = NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64;
g_object_set (G_OBJECT (setting), key, (gint) addr_gen_mode, NULL);
}
static void
mac_address_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key, gsize enforce_length, gboolean cloned_mac_addr)
{
const char *setting_name = nm_setting_get_name (setting);
gs_free char *tmp_string = NULL;
const char *p, *mac_str;
gs_free guint8 *buf_arr = NULL;
guint buf_len = 0;
gsize length;
tmp_string = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if ( cloned_mac_addr
&& NM_CLONED_MAC_IS_SPECIAL (tmp_string)) {
mac_str = tmp_string;
goto out;
}
if (tmp_string && tmp_string[0]) {
/* Look for enough ':' characters to signify a MAC address */
guint i = 0;
p = tmp_string;
while (*p) {
if (*p == ':')
i++;
p++;
}
if (enforce_length == 0 || enforce_length == i+1) {
/* If we found enough it's probably a string-format MAC address */
buf_len = i + 1;
buf_arr = g_new (guint8, buf_len);
if (!nm_utils_hwaddr_aton (tmp_string, buf_arr, buf_len))
g_clear_pointer (&buf_arr, g_free);
}
}
g_clear_pointer (&tmp_string, g_free);
if (!buf_arr) {
gs_free int *tmp_list = NULL;
/* Old format; list of ints */
tmp_list = nm_keyfile_plugin_kf_get_integer_list (info->keyfile, setting_name, key, &length, NULL);
if (length > 0 && (enforce_length == 0 || enforce_length == length)) {
gsize i;
buf_len = length;
buf_arr = g_new (guint8, buf_len);
for (i = 0; i < length; i++) {
int val = tmp_list[i];
const guint8 v = (guint8) (val & 0xFF);
if (val < 0 || val > 255) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid byte element '%d' (not between 0 and 255 inclusive)"),
val);
return;
}
buf_arr[i] = v;
}
}
}
if (!buf_arr) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid MAC address"));
return;
}
tmp_string = nm_utils_hwaddr_ntoa (buf_arr, buf_len);
mac_str = tmp_string;
out:
g_object_set (setting, key, mac_str, NULL);
}
static void
mac_address_parser_ETHER (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
mac_address_parser (info, setting, key, ETH_ALEN, FALSE);
}
static void
mac_address_parser_ETHER_cloned (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
mac_address_parser (info, setting, key, ETH_ALEN, TRUE);
}
static void
mac_address_parser_INFINIBAND (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
mac_address_parser (info, setting, key, INFINIBAND_ALEN, FALSE);
}
static void
read_hash_of_string (GKeyFile *file, NMSetting *setting, const char *key)
{
char **keys, **iter;
char *value;
const char *setting_name = nm_setting_get_name (setting);
keys = nm_keyfile_plugin_kf_get_keys (file, setting_name, NULL, NULL);
if (!keys || !*keys)
return;
for (iter = keys; *iter; iter++) {
value = nm_keyfile_plugin_kf_get_string (file, setting_name, *iter, NULL);
if (!value)
continue;
if (NM_IS_SETTING_VPN (setting)) {
/* Add any item that's not a class property to the data hash */
if (!g_object_class_find_property (G_OBJECT_GET_CLASS (setting), *iter))
nm_setting_vpn_add_data_item (NM_SETTING_VPN (setting), *iter, value);
}
if (NM_IS_SETTING_BOND (setting)) {
if (strcmp (*iter, "interface-name"))
nm_setting_bond_add_option (NM_SETTING_BOND (setting), *iter, value);
}
g_free (value);
}
g_strfreev (keys);
}
static gsize
unescape_semicolons (char *str)
{
gsize i, j;
for (i = 0, j = 0; str[i]; ) {
if (str[i] == '\\' && str[i+1] == ';')
i++;
str[j++] = str[i++];;
}
str[j] = '\0';
return j;
}
static GBytes *
get_bytes (KeyfileReaderInfo *info,
const char *setting_name,
const char *key,
gboolean zero_terminate,
gboolean unescape_semicolon)
{
gs_free char *tmp_string = NULL;
gboolean may_be_int_list = TRUE;
gsize length;
/* New format: just a string
* Old format: integer list; e.g. 11;25;38;
*/
tmp_string = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if (!tmp_string)
return NULL;
/* if the string is empty, we return an empty GBytes array.
* Note that for NM_SETTING_802_1X_PASSWORD_RAW both %NULL and
* an empty GBytes are valid, and shall be destinguished. */
if (!tmp_string[0]) {
/* note that even if @zero_terminate is TRUE, we return an empty
* byte-array. The reason is that zero_terminate is there to terminate
* *valid* strings. It's not there to terminated invalid (empty) strings.
*/
return g_bytes_new_take (tmp_string, 0);
}
for (length = 0; tmp_string[length]; length++) {
const char ch = tmp_string[length];
if ( !g_ascii_isspace (ch)
&& !g_ascii_isdigit (ch)
&& ch != ';') {
may_be_int_list = FALSE;
length += strlen (&tmp_string[length]);
break;
}
}
/* Try to parse the string as a integer list. */
if (may_be_int_list && length > 0) {
gs_free guint8 *bin_data = NULL;
const char *const s = tmp_string;
gsize i, d;
const gsize BIN_DATA_LEN = (length / 2 + 3);
bin_data = g_malloc (BIN_DATA_LEN);
#define DIGIT(c) ((c) - '0')
i = 0;
d = 0;
while (TRUE) {
int n;
/* leading whitespace */
while (g_ascii_isspace (s[i]))
i++;
if (s[i] == '\0')
break;
/* then expect 1 to 3 digits */
if (!g_ascii_isdigit (s[i])) {
d = 0;
break;
}
n = DIGIT (s[i]);
i++;
if (g_ascii_isdigit (s[i])) {
n = 10 * n + DIGIT (s[i]);
i++;
if (g_ascii_isdigit (s[i])) {
n = 10 * n + DIGIT (s[i]);
i++;
}
}
if (n > 255) {
d = 0;
break;
}
bin_data[d++] = n;
nm_assert (d < BIN_DATA_LEN);
/* allow whitespace after the digit. */
while (g_ascii_isspace (s[i]))
i++;
/* need a semicolon as separator. */
if (s[i] != ';') {
d = 0;
break;
}
i++;
}
#undef DIGIT
/* Old format; list of ints. We already did a strict validation of the
* string format before. We expect that this conversion cannot fail. */
if (d > 0) {
/* note that @zero_terminate does not add a terminating '\0' to
* binary data as an integer list.
*
* But we add a '\0' to the bin_data pointer, just to avoid somebody
* (erronously!) reading the binary data as C-string.
*
* @d itself does not entail the '\0'. */
nm_assert (d + 1 <= BIN_DATA_LEN);
bin_data = g_realloc (bin_data, d + 1);
bin_data[d] = '\0';
return g_bytes_new_take (g_steal_pointer (&bin_data), d);
}
}
/* Handle as a simple string (ie, new format) */
if (unescape_semicolon)
length = unescape_semicolons (tmp_string);
if (zero_terminate)
length++;
if (length == 0)
return NULL;
tmp_string = g_realloc (tmp_string, length + (zero_terminate ? 0 : 1));
return g_bytes_new_take (g_steal_pointer (&tmp_string), length);
}
static void
ssid_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
GBytes *bytes;
bytes = get_bytes (info, setting_name, key, FALSE, TRUE);
if (bytes) {
g_object_set (setting, key, bytes, NULL);
g_bytes_unref (bytes);
} else if (!info->error) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid SSID"));
}
}
static void
password_raw_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
GBytes *bytes;
bytes = get_bytes (info, setting_name, key, FALSE, TRUE);
if (bytes) {
g_object_set (setting, key, bytes, NULL);
g_bytes_unref (bytes);
} else if (!info->error) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid raw password"));
}
}
static char *
get_cert_path (const char *base_dir, const guint8 *cert_path, gsize cert_path_len)
{
const char *base;
char *p = NULL, *path, *tmp;
g_return_val_if_fail (base_dir != NULL, NULL);
g_return_val_if_fail (cert_path != NULL, NULL);
base = path = g_malloc0 (cert_path_len + 1);
memcpy (path, cert_path, cert_path_len);
if (path[0] == '/')
return path;
p = strrchr (path, '/');
if (p)
base = p + 1;
tmp = g_build_path ("/", base_dir, base, NULL);
g_free (path);
return tmp;
}
static const char *certext[] = { ".pem", ".cert", ".crt", ".cer", ".p12", ".der", ".key" };
static gboolean
has_cert_ext (const char *path)
{
int i;
for (i = 0; i < G_N_ELEMENTS (certext); i++) {
if (g_str_has_suffix (path, certext[i]))
return TRUE;
}
return FALSE;
}
static gboolean
handle_as_scheme (KeyfileReaderInfo *info, GBytes *bytes, NMSetting *setting, const char *key)
{
const char *data;
gsize data_len, bin_len;
data = g_bytes_get_data (bytes, &data_len);
g_return_val_if_fail (data && data_len > 0, FALSE);
/* to be a scheme, @data must be a zero terminated string, which is counted by @data_len */
if (data[data_len - 1] != '\0')
return FALSE;
data_len--;
/* It's the PATH scheme, can just set plain data.
* In this case, @data_len includes */
if ( data_len >= NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_PATH)
&& g_str_has_prefix (data, NM_KEYFILE_CERT_SCHEME_PREFIX_PATH)) {
if (nm_setting_802_1x_check_cert_scheme (data, data_len + 1, NULL) == NM_SETTING_802_1X_CK_SCHEME_PATH) {
const char *path = &data[NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_PATH)];
gs_free char *path_free = NULL;
if (path[0] != '/') {
/* we want to read absolute paths because we use keyfile as exchange
* between different processes which might not have the same cwd. */
path = path_free = get_cert_path (info->base_dir, (const guint8 *) path,
data_len - NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_PATH));
}
g_object_set (setting, key, bytes, NULL);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_INFO_MISSING_FILE,
_("certificate or key file '%s' does not exist"),
path);
}
} else {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid key/cert value path \"%s\""), data);
}
return TRUE;
}
if ( data_len >= NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_PKCS11)
&& g_str_has_prefix (data, NM_KEYFILE_CERT_SCHEME_PREFIX_PKCS11)) {
if (nm_setting_802_1x_check_cert_scheme (data, data_len + 1, NULL) == NM_SETTING_802_1X_CK_SCHEME_PKCS11) {
g_object_set (setting, key, bytes, NULL);
} else {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid PKCS#11 URI \"%s\""), data);
}
return TRUE;
}
if ( data_len > NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_BLOB)
&& g_str_has_prefix (data, NM_KEYFILE_CERT_SCHEME_PREFIX_BLOB)) {
const char *cdata = data + NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_BLOB);
guchar *bin;
GBytes *bytes2;
gsize i;
gboolean valid_base64;
data_len -= NM_STRLEN (NM_KEYFILE_CERT_SCHEME_PREFIX_BLOB);
/* Let's be strict here. We expect valid base64, no funny stuff!!
* We didn't write such invalid data ourselfes and refuse to read it as blob. */
if ((valid_base64 = (data_len % 4 == 0))) {
for (i = 0; i < data_len; i++) {
char c = cdata[i];
if (!( (c >= 'a' && c <= 'z')
|| (c >= 'A' && c <= 'Z')
|| (c >= '0' && c <= '9')
|| (c == '+' || c == '/'))) {
if (c != '=' || i < data_len - 2)
valid_base64 = FALSE;
else {
for (; i < data_len; i++) {
if (cdata[i] != '=')
valid_base64 = FALSE;
}
}
break;
}
}
}
if (!valid_base64) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid key/cert value data:;base64, is not base64"));
return TRUE;
}
bin = g_base64_decode (cdata, &bin_len);
g_return_val_if_fail (bin_len > 0, FALSE);
if (nm_setting_802_1x_check_cert_scheme (bin, bin_len, NULL) != NM_SETTING_802_1X_CK_SCHEME_BLOB) {
/* The blob probably starts with "file://". Setting the cert data will confuse NMSetting8021x.
* In fact this is a limitation of NMSetting8021x which does not support setting blobs that start
* with file://. Just warn and return TRUE to signal that we ~handled~ the setting. */
g_free (bin);
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid key/cert value data:;base64,file://"));
} else {
bytes2 = g_bytes_new_take (bin, bin_len);
g_object_set (setting, key, bytes2, NULL);
g_bytes_unref (bytes2);
}
return TRUE;
}
return FALSE;
}
char *
nm_keyfile_detect_unqualified_path_scheme (const char *base_dir,
gconstpointer pdata,
gsize data_len,
gboolean consider_exists,
gboolean *out_exists)
{
const char *data = pdata;
gboolean exists = FALSE;
gboolean success = FALSE;
gsize validate_len;
char *path;
GByteArray *tmp;
g_return_val_if_fail (base_dir && base_dir[0] == '/', NULL);
if (!pdata)
return NULL;
if (data_len == -1)
data_len = strlen (data);
if (data_len > 500 || data_len < 1)
return NULL;
/* If there's a trailing zero tell g_utf8_validate() to validate until the zero */
if (data[data_len - 1] == '\0') {
/* setting it to -1, would mean we accept data to contain NUL characters before the
* end. Don't accept any NUL in [0 .. data_len-1[ . */
validate_len = data_len - 1;
} else
validate_len = data_len;
if ( validate_len == 0
|| g_utf8_validate ((const char *) data, validate_len, NULL) == FALSE)
return NULL;
/* Might be a bare path without the file:// prefix; in that case
* if it's an absolute path, use that, otherwise treat it as a
* relative path to the current directory.
*/
path = get_cert_path (base_dir, (const guint8 *) data, data_len);
if ( !memchr (data, '/', data_len)
&& !has_cert_ext (path)) {
if (!consider_exists)
goto out;
exists = g_file_test (path, G_FILE_TEST_EXISTS);
if (!exists)
goto out;
} else if (out_exists)
exists = g_file_test (path, G_FILE_TEST_EXISTS);
/* Construct the proper value as required for the PATH scheme */
tmp = g_byte_array_sized_new (strlen (NM_KEYFILE_CERT_SCHEME_PREFIX_PATH) + strlen (path) + 1);
g_byte_array_append (tmp, (const guint8 *) NM_KEYFILE_CERT_SCHEME_PREFIX_PATH, strlen (NM_KEYFILE_CERT_SCHEME_PREFIX_PATH));
g_byte_array_append (tmp, (const guint8 *) path, strlen (path) + 1);
if (nm_setting_802_1x_check_cert_scheme (tmp->data, tmp->len, NULL) == NM_SETTING_802_1X_CK_SCHEME_PATH) {
g_free (path);
path = (char *) g_byte_array_free (tmp, FALSE);
/* when returning TRUE, we must also be sure that @data_len does not look like
* the deprecated format of list of integers. With this implementation that is the
* case, as long as @consider_exists is FALSE. */
success = TRUE;
} else
g_byte_array_unref (tmp);
out:
if (!success) {
g_free (path);
return NULL;
}
if (out_exists)
*out_exists = exists;
return path;
}
static gboolean
handle_as_path (KeyfileReaderInfo *info,
GBytes *bytes,
NMSetting *setting,
const char *key)
{
const guint8 *data;
gsize data_len;
char *path;
gboolean exists = FALSE;
GBytes *val;
data = g_bytes_get_data (bytes, &data_len);
path = nm_keyfile_detect_unqualified_path_scheme (info->base_dir, data, data_len, TRUE, &exists);
if (!path)
return FALSE;
/* Construct the proper value as required for the PATH scheme */
val = g_bytes_new_take (path, strlen (path) + 1);
g_object_set (setting, key, val, NULL);
/* Warn if the certificate didn't exist */
if (!exists) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_INFO_MISSING_FILE,
_("certificate or key file '%s' does not exist"),
path);
}
g_bytes_unref (val);
return TRUE;
}
static void
cert_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
gs_unref_bytes GBytes *bytes = NULL;
gsize bin_len;
const char *bin;
bytes = get_bytes (info, setting_name, key, TRUE, FALSE);
if (bytes) {
/* Try as a path + scheme (ie, starts with "file://") */
if (handle_as_scheme (info, bytes, setting, key))
return;
if (info->error)
return;
/* If not, it might be a plain path */
if (handle_as_path (info, bytes, setting, key))
return;
if (info->error)
return;
bin = g_bytes_get_data (bytes, &bin_len);
if (nm_setting_802_1x_check_cert_scheme (bin, bin_len, NULL) != NM_SETTING_802_1X_CK_SCHEME_BLOB) {
/* The blob probably starts with "file://" but contains invalid characters for a path.
* Setting the cert data will confuse NMSetting8021x.
* In fact, NMSetting8021x does not support setting such binary data, so just warn and
* continue. */
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid key/cert value is not a valid blob"));
} else
g_object_set (setting, key, bytes, NULL);
} else if (!info->error) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid key/cert value"));
}
}
static void
parity_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
NMSettingSerialParity parity;
int int_val;
gs_free char *str_val = NULL;
/* Keyfile traditionally stored this as the ASCII value for 'E', 'o', or 'n'.
* We now accept either that or the (case-insensitive) character itself (but
* still always write it the old way, for backward compatibility).
*/
int_val = nm_keyfile_plugin_kf_get_integer (info->keyfile, setting_name, key, NULL);
if (!int_val) {
str_val = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if (str_val) {
if (str_val[0] && !str_val[1])
int_val = str_val[0];
else {
/* This will hit the warning below */
int_val = 'X';
}
}
}
if (!int_val)
return;
switch (int_val) {
case 'E':
case 'e':
parity = NM_SETTING_SERIAL_PARITY_EVEN;
break;
case 'O':
case 'o':
parity = NM_SETTING_SERIAL_PARITY_ODD;
break;
case 'N':
case 'n':
parity = NM_SETTING_SERIAL_PARITY_NONE;
break;
default:
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid parity value '%s'"),
str_val ? str_val : "");
return;
}
g_object_set (setting, key, parity, NULL);
}
static void
team_config_parser (KeyfileReaderInfo *info, NMSetting *setting, const char *key)
{
const char *setting_name = nm_setting_get_name (setting);
gs_free char *conf = NULL;
gs_free_error GError *error = NULL;
conf = nm_keyfile_plugin_kf_get_string (info->keyfile, setting_name, key, NULL);
if (conf && conf[0] && !nm_utils_is_json_object (conf, &error)) {
handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid team configuration: %s"),
error->message);
g_clear_pointer (&conf, g_free);
}
g_object_set (G_OBJECT (setting), key, conf, NULL);
}
typedef struct {
const char *setting_name;
const char *key;
gboolean check_for_key;
void (*parser) (KeyfileReaderInfo *info, NMSetting *setting, const char *key);
} KeyParser;
/* A table of keys that require further parsing/conversion because they are
* stored in a format that can't be automatically read using the key's type.
* i.e. IPv4 addresses, which are stored in NetworkManager as guint32, but are
* stored in keyfiles as strings, eg "10.1.1.2" or IPv6 addresses stored
* in struct in6_addr internally, but as string in keyfiles.
*/
static KeyParser key_parsers[] = {
{ NM_SETTING_CONNECTION_SETTING_NAME,
NM_SETTING_CONNECTION_TYPE,
TRUE,
setting_alias_parser },
{ NM_SETTING_BRIDGE_SETTING_NAME,
NM_SETTING_BRIDGE_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_IP4_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_ADDRESSES,
FALSE,
ip_address_or_route_parser },
{ NM_SETTING_IP6_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_ADDRESSES,
FALSE,
ip_address_or_route_parser },
{ NM_SETTING_IP4_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_ROUTES,
FALSE,
ip_address_or_route_parser },
{ NM_SETTING_IP6_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_ROUTES,
FALSE,
ip_address_or_route_parser },
{ NM_SETTING_IP4_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_DNS,
FALSE,
ip4_dns_parser },
{ NM_SETTING_IP6_CONFIG_SETTING_NAME,
NM_SETTING_IP_CONFIG_DNS,
FALSE,
ip6_dns_parser },
{ NM_SETTING_IP6_CONFIG_SETTING_NAME,
NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE,
FALSE,
ip6_addr_gen_mode_parser },
{ NM_SETTING_WIRED_SETTING_NAME,
NM_SETTING_WIRED_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_WIRED_SETTING_NAME,
NM_SETTING_WIRED_CLONED_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER_cloned },
{ NM_SETTING_WIRELESS_SETTING_NAME,
NM_SETTING_WIRELESS_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_WIRELESS_SETTING_NAME,
NM_SETTING_WIRELESS_CLONED_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER_cloned },
{ NM_SETTING_WIRELESS_SETTING_NAME,
NM_SETTING_WIRELESS_BSSID,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_BLUETOOTH_SETTING_NAME,
NM_SETTING_BLUETOOTH_BDADDR,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_INFINIBAND_SETTING_NAME,
NM_SETTING_INFINIBAND_MAC_ADDRESS,
TRUE,
mac_address_parser_INFINIBAND },
{ NM_SETTING_WIMAX_SETTING_NAME,
NM_SETTING_WIMAX_MAC_ADDRESS,
TRUE,
mac_address_parser_ETHER },
{ NM_SETTING_WIRELESS_SETTING_NAME,
NM_SETTING_WIRELESS_SSID,
TRUE,
ssid_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_PASSWORD_RAW,
TRUE,
password_raw_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_CA_CERT,
TRUE,
cert_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_CLIENT_CERT,
TRUE,
cert_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_PRIVATE_KEY,
TRUE,
cert_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_PHASE2_CA_CERT,
TRUE,
cert_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_PHASE2_CLIENT_CERT,
TRUE,
cert_parser },
{ NM_SETTING_802_1X_SETTING_NAME,
NM_SETTING_802_1X_PHASE2_PRIVATE_KEY,
TRUE,
cert_parser },
{ NM_SETTING_SERIAL_SETTING_NAME,
NM_SETTING_SERIAL_PARITY,
TRUE,
parity_parser },
{ NM_SETTING_TEAM_SETTING_NAME,
NM_SETTING_TEAM_CONFIG,
TRUE,
team_config_parser },
{ NM_SETTING_TEAM_PORT_SETTING_NAME,
NM_SETTING_TEAM_CONFIG,
TRUE,
team_config_parser },
{ NULL, NULL, FALSE }
};
static void
set_default_for_missing_key (NMSetting *setting, const char *property)
{
/* Set a value different from the default value of the property's spec */
}
static void
read_one_setting_value (NMSetting *setting,
const char *key,
const GValue *value,
GParamFlags flags,
gpointer user_data)
{
KeyfileReaderInfo *info = user_data;
GKeyFile *keyfile = info->keyfile;
const char *setting_name;
int errsv;
GType type;
gs_free_error GError *err = NULL;
gboolean check_for_key = TRUE;
KeyParser *parser = &key_parsers[0];
if (info->error)
return;
/* Property is not writable */
if (!(flags & G_PARAM_WRITABLE))
return;
/* Setting name gets picked up from the keyfile's section name instead */
if (!strcmp (key, NM_SETTING_NAME))
return;
/* Don't read the NMSettingConnection object's 'read-only' property */
if ( NM_IS_SETTING_CONNECTION (setting)
&& !strcmp (key, NM_SETTING_CONNECTION_READ_ONLY))
return;
setting_name = nm_setting_get_name (setting);
/* Look through the list of handlers for non-standard format key values */
while (parser->setting_name) {
if (!strcmp (parser->setting_name, setting_name) && !strcmp (parser->key, key)) {
check_for_key = parser->check_for_key;
break;
}
parser++;
}
/* VPN properties don't have the exact key name */
if (NM_IS_SETTING_VPN (setting))
check_for_key = FALSE;
/* Bonding 'options' don't have the exact key name. The options are right under [bond] group. */
if (NM_IS_SETTING_BOND (setting))
check_for_key = FALSE;
/* Check for the exact key in the GKeyFile if required. Most setting
* properties map 1:1 to a key in the GKeyFile, but for those properties
* like IP addresses and routes where more than one value is actually
* encoded by the setting property, this won't be true.
*/
if (check_for_key && !nm_keyfile_plugin_kf_has_key (keyfile, setting_name, key, &err)) {
/* Key doesn't exist or an error ocurred, thus nothing to do. */
if (err) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("error loading setting value: %s"),
err->message))
goto out_error;
}
/* Allow default values different than in property spec */
set_default_for_missing_key (setting, key);
return;
}
/* If there's a custom parser for this key, handle that before the generic
* parsers below.
*/
if (parser->setting_name) {
(*parser->parser) (info, setting, key);
return;
}
type = G_VALUE_TYPE (value);
if (type == G_TYPE_STRING) {
char *str_val;
str_val = nm_keyfile_plugin_kf_get_string (keyfile, setting_name, key, NULL);
g_object_set (setting, key, str_val, NULL);
g_free (str_val);
} else if (type == G_TYPE_UINT) {
int int_val;
int_val = nm_keyfile_plugin_kf_get_integer (keyfile, setting_name, key, NULL);
if (int_val < 0) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid negative value (%i)"),
int_val))
goto out_error;
}
g_object_set (setting, key, int_val, NULL);
} else if (type == G_TYPE_INT) {
int int_val;
int_val = nm_keyfile_plugin_kf_get_integer (keyfile, setting_name, key, NULL);
g_object_set (setting, key, int_val, NULL);
} else if (type == G_TYPE_BOOLEAN) {
gboolean bool_val;
bool_val = nm_keyfile_plugin_kf_get_boolean (keyfile, setting_name, key, NULL);
g_object_set (setting, key, bool_val, NULL);
} else if (type == G_TYPE_CHAR) {
int int_val;
int_val = nm_keyfile_plugin_kf_get_integer (keyfile, setting_name, key, NULL);
if (int_val < G_MININT8 || int_val > G_MAXINT8) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid char value (%i)"),
int_val))
goto out_error;
}
g_object_set (setting, key, int_val, NULL);
} else if (type == G_TYPE_UINT64) {
char *tmp_str;
guint64 uint_val;
tmp_str = nm_keyfile_plugin_kf_get_value (keyfile, setting_name, key, NULL);
uint_val = g_ascii_strtoull (tmp_str, NULL, 10);
g_free (tmp_str);
g_object_set (setting, key, uint_val, NULL);
} else if (type == G_TYPE_INT64) {
gs_free char *tmp_str = NULL;
gint64 int_val;
tmp_str = nm_keyfile_plugin_kf_get_value (keyfile, setting_name, key, NULL);
int_val = _nm_utils_ascii_str_to_int64 (tmp_str, 10, G_MININT64, G_MAXINT64, 0);
errsv = errno;
if (errsv) {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid int64 value (%s)"),
tmp_str))
goto out_error;
} else
g_object_set (setting, key, int_val, NULL);
} else if (type == G_TYPE_BYTES) {
gint *tmp;
GByteArray *array;
GBytes *bytes;
gsize length;
int i;
gboolean already_warned = FALSE;
tmp = nm_keyfile_plugin_kf_get_integer_list (keyfile, setting_name, key, &length, NULL);
array = g_byte_array_sized_new (length);
for (i = 0; i < length; i++) {
int val = tmp[i];
unsigned char v = (unsigned char) (val & 0xFF);
if (val < 0 || val > 255) {
if ( !already_warned
&& !handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("ignoring invalid byte element '%d' (not between 0 and 255 inclusive)"),
val)) {
g_byte_array_unref (array);
g_free (tmp);
goto out_error;
}
already_warned = TRUE;
} else
g_byte_array_append (array, (const unsigned char *) &v, sizeof (v));
}
bytes = g_byte_array_free_to_bytes (array);
g_object_set (setting, key, bytes, NULL);
g_bytes_unref (bytes);
g_free (tmp);
} else if (type == G_TYPE_STRV) {
gchar **sa;
gsize length;
sa = nm_keyfile_plugin_kf_get_string_list (keyfile, setting_name, key, &length, NULL);
g_object_set (setting, key, sa, NULL);
g_strfreev (sa);
} else if (type == G_TYPE_HASH_TABLE) {
read_hash_of_string (keyfile, setting, key);
} else if (type == G_TYPE_ARRAY) {
read_array_of_uint (keyfile, setting, key);
} else if (G_VALUE_HOLDS_FLAGS (value)) {
guint64 uint_val;
/* Flags are guint but GKeyFile has no uint reader, just uint64 */
uint_val = nm_keyfile_plugin_kf_get_uint64 (keyfile, setting_name, key, &err);
if (!err) {
if (uint_val <= G_MAXUINT)
g_object_set (setting, key, (guint) uint_val, NULL);
else {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("too large FLAGS property '%s' (%llu)"),
G_VALUE_TYPE_NAME (value), (long long unsigned) uint_val))
goto out_error;
}
}
} else if (G_VALUE_HOLDS_ENUM (value)) {
gint int_val;
int_val = nm_keyfile_plugin_kf_get_integer (keyfile, setting_name, key, &err);
if (!err)
g_object_set (setting, key, (gint) int_val, NULL);
} else {
if (!handle_warn (info, key, NM_KEYFILE_WARN_SEVERITY_WARN,
_("unhandled setting property type '%s'"),
G_VALUE_TYPE_NAME (value)))
goto out_error;
}
out_error:
return;
}
static NMSetting *
read_setting (KeyfileReaderInfo *info)
{
const char *alias;
GType type;
alias = nm_keyfile_plugin_get_setting_name_for_alias (info->group);
if (!alias)
alias = info->group;
type = nm_setting_lookup_type (alias);
if (type) {
NMSetting *setting = g_object_new (type, NULL);
info->setting = setting;
nm_setting_enumerate_values (setting, read_one_setting_value, info);
info->setting = NULL;
if (!info->error)
return setting;
g_object_unref (setting);
} else {
handle_warn (info, NULL, NM_KEYFILE_WARN_SEVERITY_WARN,
_("invalid setting name '%s'"), info->group);
}
return NULL;
}
static void
read_vpn_secrets (KeyfileReaderInfo *info, NMSettingVpn *s_vpn)
{
char **keys, **iter;
keys = nm_keyfile_plugin_kf_get_keys (info->keyfile, NM_KEYFILE_GROUP_VPN_SECRETS, NULL, NULL);
for (iter = keys; *iter; iter++) {
char *secret;
secret = nm_keyfile_plugin_kf_get_string (info->keyfile, NM_KEYFILE_GROUP_VPN_SECRETS, *iter, NULL);
if (secret) {
nm_setting_vpn_add_secret (s_vpn, *iter, secret);
g_free (secret);
}
}
g_strfreev (keys);
}
/**
* nm_keyfile_read:
* @keyfile: the keyfile from which to create the connection
* @keyfile_name: keyfile allows missing connection id and uuid
* and NetworkManager will create those when reading a connection
* from file. By providing a filename you can reproduce that behavior,
* but of course, it can only recreate the same UUID if you provide the
* same filename as NetworkManager core daemon would.
* @keyfile_name has only a relevance for setting the id or uuid if it
* is missing and as fallback for @base_dir.
* @base_dir: when reading certificates from files with relative name,
* the relative path is made absolute using @base_dir.
* If @base_dir is missing, first try to get the pathname from @keyfile_name
* (if it is given as absolute path). As last, fallback to the current path.
* @handler: read handler
* @user_data: user data for read handler
* @error: error
*
* Tries to create a NMConnection from a keyfile. The resulting keyfile is
* not normalized and might not even verify.
*
* Returns: (transfer full): on success, returns the created connection.
*/
NMConnection *
nm_keyfile_read (GKeyFile *keyfile,
const char *keyfile_name,
const char *base_dir,
NMKeyfileReadHandler handler,
void *user_data,
GError **error)
{
NMConnection *connection = NULL;
NMSettingConnection *s_con;
NMSetting *setting;
gchar **groups;
gsize length;
int i;
gboolean vpn_secrets = FALSE;
KeyfileReaderInfo info = { 0 };
gs_free char *base_dir_free = NULL;
g_return_val_if_fail (keyfile, NULL);
g_return_val_if_fail (!error || !*error, NULL);
if (!base_dir) {
/* basedir is not given. Prefer it from the keyfile_name */
if (keyfile_name && keyfile_name[0] == '/') {
base_dir = base_dir_free = g_path_get_dirname (keyfile_name);
} else {
/* if keyfile is not given or not an absolute path, fallback
* to current working directory. */
base_dir = base_dir_free = g_get_current_dir ();
}
} else
g_return_val_if_fail ("/", NULL);
connection = nm_simple_connection_new ();
info.connection = connection;
info.keyfile = (GKeyFile *) keyfile;
info.base_dir = base_dir;
info.handler = handler;
info.user_data = user_data;
groups = g_key_file_get_groups (keyfile, &length);
if (!groups)
length = 0;
for (i = 0; i < length; i++) {
/* Only read out secrets when needed */
if (!strcmp (groups[i], NM_KEYFILE_GROUP_VPN_SECRETS)) {
vpn_secrets = TRUE;
continue;
}
info.group = groups[i];
setting = read_setting (&info);
info.group = NULL;
if (info.error)
goto out_error;
if (setting)
nm_connection_add_setting (connection, setting);
}
g_strfreev (groups);
s_con = nm_connection_get_setting_connection (connection);
if (!s_con) {
s_con = NM_SETTING_CONNECTION (nm_setting_connection_new ());
nm_connection_add_setting (connection, NM_SETTING (s_con));
}
/* Make sure that we have 'id' even if not explictly specified in the keyfile */
if ( keyfile_name
&& !nm_setting_connection_get_id (s_con)) {
char *base_name;
base_name = g_path_get_basename (keyfile_name);
g_object_set (s_con, NM_SETTING_CONNECTION_ID, base_name, NULL);
g_free (base_name);
}
/* Make sure that we have 'uuid' even if not explictly specified in the keyfile */
if ( keyfile_name
&& !nm_setting_connection_get_uuid (s_con)) {
char *hashed_uuid;
hashed_uuid = _nm_utils_uuid_generate_from_strings ("keyfile", keyfile_name, NULL);
g_object_set (s_con, NM_SETTING_CONNECTION_UUID, hashed_uuid, NULL);
g_free (hashed_uuid);
}
/* Make sure that we have 'interface-name' even if it was specified in the
* "wrong" (ie, deprecated) group.
*/
if ( !nm_setting_connection_get_interface_name (s_con)
&& nm_setting_connection_get_connection_type (s_con)) {
char *interface_name;
interface_name = g_key_file_get_string (keyfile,
nm_setting_connection_get_connection_type (s_con),
"interface-name",
NULL);
if (interface_name) {
g_object_set (s_con, NM_SETTING_CONNECTION_INTERFACE_NAME, interface_name, NULL);
g_free (interface_name);
}
}
/* Handle vpn secrets after the 'vpn' setting was read */
if (vpn_secrets) {
NMSettingVpn *s_vpn;
s_vpn = nm_connection_get_setting_vpn (connection);
if (s_vpn) {
read_vpn_secrets (&info, s_vpn);
if (info.error)
goto out_error;
}
}
return connection;
out_error:
g_propagate_error (error, info.error);
g_free (connection);
return NULL;
}
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