diff options
Diffstat (limited to 'system-settings/plugins/keyfile/reader.c')
| -rw-r--r-- | system-settings/plugins/keyfile/reader.c | 1266 |
1 files changed, 1266 insertions, 0 deletions
diff --git a/system-settings/plugins/keyfile/reader.c b/system-settings/plugins/keyfile/reader.c new file mode 100644 index 00000000..8d52afe6 --- /dev/null +++ b/system-settings/plugins/keyfile/reader.c @@ -0,0 +1,1266 @@ +/* -*- 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 - 2010 Red Hat, Inc. + */ + +#include <errno.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <unistd.h> +#include <sys/types.h> +#include <dbus/dbus-glib.h> +#include <nm-setting.h> +#include <nm-setting-ip4-config.h> +#include <nm-setting-ip6-config.h> +#include <nm-setting-vpn.h> +#include <nm-setting-connection.h> +#include <nm-setting-wired.h> +#include <nm-setting-wireless.h> +#include <nm-setting-bluetooth.h> +#include <nm-setting-8021x.h> +#include <arpa/inet.h> +#include <netinet/ether.h> +#include <string.h> +#include <ctype.h> + +#include "nm-dbus-glib-types.h" +#include "reader.h" +#include "common.h" + +static gboolean +read_array_of_uint (GKeyFile *file, + NMSetting *setting, + const char *key) +{ + GArray *array = NULL; + gsize length; + int i; + gint *tmp; + + tmp = g_key_file_get_integer_list (file, nm_setting_get_name (setting), key, &length, NULL); + array = g_array_sized_new (FALSE, FALSE, sizeof (guint32), length); + for (i = 0; i < length; i++) + g_array_append_val (array, tmp[i]); + + if (array) { + g_object_set (setting, key, array, NULL); + g_array_free (array, TRUE); + } + + return TRUE; +} + +static gboolean +get_one_int (const char *str, guint32 max_val, const char *key_name, guint32 *out) +{ + long tmp; + + errno = 0; + tmp = strtol (str, NULL, 10); + if (errno || (tmp < 0) || (tmp > max_val)) { + g_warning ("%s: ignoring invalid IP %s item '%s'", __func__, key_name, str); + return FALSE; + } + + *out = (guint32) tmp; + return TRUE; +} + +static void +free_one_ip4_address (gpointer data, gpointer user_data) +{ + g_array_free ((GArray *) data, TRUE); +} + +static GPtrArray * +read_ip4_addresses (GKeyFile *file, + const char *setting_name, + const char *key) +{ + GPtrArray *addresses; + int i = 0; + + addresses = g_ptr_array_sized_new (3); + + /* Look for individual addresses */ + while (i++ < 1000) { + gchar **tmp, **iter; + char *key_name; + gsize length = 0; + int ret; + GArray *address; + guint32 empty = 0; + int j; + + key_name = g_strdup_printf ("%s%d", key, i); + tmp = g_key_file_get_string_list (file, setting_name, key_name, &length, NULL); + g_free (key_name); + + if (!tmp || !length) + break; /* all done */ + + if ((length < 2) || (length > 3)) { + g_warning ("%s: ignoring invalid IPv4 address item '%s'", __func__, key_name); + goto next; + } + + /* convert the string array into IP addresses */ + address = g_array_sized_new (FALSE, TRUE, sizeof (guint32), 3); + for (iter = tmp, j = 0; *iter; iter++, j++) { + struct in_addr addr; + + if (j == 1) { + guint32 prefix = 0; + + /* prefix */ + if (!get_one_int (*iter, 32, key_name, &prefix)) { + g_array_free (address, TRUE); + goto next; + } + + g_array_append_val (address, prefix); + } else { + /* address and gateway */ + ret = inet_pton (AF_INET, *iter, &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv4 %s element '%s'", __func__, key_name, *iter); + g_array_free (address, TRUE); + goto next; + } + g_array_append_val (address, addr.s_addr); + } + } + + /* fill in blank gateway if not specified */ + if (address->len == 2) + g_array_append_val (address, empty); + + g_ptr_array_add (addresses, address); + +next: + g_strfreev (tmp); + } + + if (addresses->len < 1) { + g_ptr_array_free (addresses, TRUE); + addresses = NULL; + } + + return addresses; +} + +static void +ip4_addr_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + GPtrArray *addresses; + const char *setting_name = nm_setting_get_name (setting); + + addresses = read_ip4_addresses (keyfile, setting_name, key); + + /* Work around for previous syntax */ + if (!addresses && !strcmp (key, NM_SETTING_IP4_CONFIG_ADDRESSES)) + addresses = read_ip4_addresses (keyfile, setting_name, "address"); + + if (addresses) { + g_object_set (setting, key, addresses, NULL); + g_ptr_array_foreach (addresses, free_one_ip4_address, NULL); + g_ptr_array_free (addresses, TRUE); + } +} + +static void +free_one_ip4_route (gpointer data, gpointer user_data) +{ + g_array_free ((GArray *) data, TRUE); +} + +static GPtrArray * +read_ip4_routes (GKeyFile *file, + const char *setting_name, + const char *key) +{ + GPtrArray *routes; + int i = 0; + + routes = g_ptr_array_sized_new (3); + + /* Look for individual routes */ + while (i++ < 1000) { + gchar **tmp, **iter; + char *key_name; + gsize length = 0; + int ret; + GArray *route; + int j; + + key_name = g_strdup_printf ("%s%d", key, i); + tmp = g_key_file_get_string_list (file, setting_name, key_name, &length, NULL); + g_free (key_name); + + if (!tmp || !length) + break; /* all done */ + + if (length != 4) { + g_warning ("%s: ignoring invalid IPv4 route item '%s'", __func__, key_name); + goto next; + } + + /* convert the string array into IP addresses */ + route = g_array_sized_new (FALSE, TRUE, sizeof (guint32), 4); + for (iter = tmp, j = 0; *iter; iter++, j++) { + struct in_addr addr; + + if (j == 1) { + guint32 prefix = 0; + + /* prefix */ + if (!get_one_int (*iter, 32, key_name, &prefix)) { + g_array_free (route, TRUE); + goto next; + } + + g_array_append_val (route, prefix); + } else if (j == 3) { + guint32 metric = 0; + + /* metric */ + if (!get_one_int (*iter, G_MAXUINT32, key_name, &metric)) { + g_array_free (route, TRUE); + goto next; + } + + g_array_append_val (route, metric); + } else { + /* address and next hop */ + ret = inet_pton (AF_INET, *iter, &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv4 %s element '%s'", __func__, key_name, *iter); + g_array_free (route, TRUE); + goto next; + } + g_array_append_val (route, addr.s_addr); + } + } + g_ptr_array_add (routes, route); + +next: + g_strfreev (tmp); + } + + if (routes->len < 1) { + g_ptr_array_free (routes, TRUE); + routes = NULL; + } + + return routes; +} + +static void +ip4_route_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + GPtrArray *routes; + const char *setting_name = nm_setting_get_name (setting); + + routes = read_ip4_routes (keyfile, setting_name, key); + if (routes) { + g_object_set (setting, key, routes, NULL); + g_ptr_array_foreach (routes, free_one_ip4_route, NULL); + g_ptr_array_free (routes, TRUE); + } +} + +static void +ip4_dns_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + const char *setting_name = nm_setting_get_name (setting); + GArray *array = NULL; + gsize length; + char **list, **iter; + int ret; + + list = g_key_file_get_string_list (keyfile, setting_name, key, &length, NULL); + if (!list || !g_strv_length (list)) + return; + + array = g_array_sized_new (FALSE, FALSE, sizeof (guint32), length); + for (iter = list; *iter; iter++) { + struct in_addr addr; + + ret = inet_pton (AF_INET, *iter, &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid DNS server address '%s'", __func__, *iter); + continue; + } + + g_array_append_val (array, addr.s_addr); + } + g_strfreev (list); + + if (array) { + g_object_set (setting, key, array, NULL); + g_array_free (array, TRUE); + } +} + +static void +free_one_ip6_address (gpointer data, gpointer user_data) +{ + g_value_array_free ((GValueArray *) data); +} + +static char * +split_prefix (char *addr) +{ + char *slash; + + g_return_val_if_fail (addr != NULL, NULL); + + /* Find the prefix and split the string */ + slash = strchr (addr, '/'); + if (slash && slash > addr) { + slash++; + *(slash - 1) = '\0'; + } + + return slash; +} + +static char * +split_gw (char *str) +{ + char *comma; + + g_return_val_if_fail (str != NULL, NULL); + + /* Find the prefix and split the string */ + comma = strchr (str, ','); + if (comma && comma > str) { + comma++; + *(comma - 1) = '\0'; + return comma; + } + return NULL; +} + +static GPtrArray * +read_ip6_addresses (GKeyFile *file, + const char *setting_name, + const char *key) +{ + GPtrArray *addresses; + struct in6_addr addr, gw; + guint32 prefix; + int i = 0; + + addresses = g_ptr_array_sized_new (3); + + /* Look for individual addresses */ + while (i++ < 1000) { + char *tmp, *key_name, *str_prefix, *str_gw; + int ret; + GValueArray *values; + GByteArray *address; + GByteArray *gateway; + GValue value = { 0 }; + + key_name = g_strdup_printf ("%s%d", key, i); + tmp = g_key_file_get_string (file, setting_name, key_name, NULL); + g_free (key_name); + + if (!tmp) + break; /* all done */ + + /* convert the string array into IPv6 addresses */ + values = g_value_array_new (2); /* NMIP6Address has 2 items */ + + /* Split the address and prefix */ + str_prefix = split_prefix (tmp); + + /* address */ + ret = inet_pton (AF_INET6, tmp, &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv6 %s element '%s'", __func__, key_name, tmp); + g_value_array_free (values); + goto next; + } + + address = g_byte_array_new (); + g_byte_array_append (address, (guint8 *) addr.s6_addr, 16); + g_value_init (&value, DBUS_TYPE_G_UCHAR_ARRAY); + g_value_take_boxed (&value, address); + g_value_array_append (values, &value); + g_value_unset (&value); + + /* prefix */ + prefix = 0; + if (str_prefix) { + if (!get_one_int (str_prefix, 128, key_name, &prefix)) { + g_value_array_free (values); + goto next; + } + } else { + /* Missing prefix defaults to /64 */ + prefix = 64; + } + + g_value_init (&value, G_TYPE_UINT); + g_value_set_uint (&value, prefix); + g_value_array_append (values, &value); + g_value_unset (&value); + + /* Gateway (optional) */ + str_gw = split_gw (str_prefix); + if (str_gw) { + ret = inet_pton (AF_INET6, str_gw, &gw); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv6 %s gateway '%s'", __func__, key_name, tmp); + g_value_array_free (values); + goto next; + } + + if (!IN6_IS_ADDR_UNSPECIFIED (&gw)) { + gateway = g_byte_array_new (); + g_byte_array_append (gateway, (guint8 *) gw.s6_addr, 16); + g_value_init (&value, DBUS_TYPE_G_UCHAR_ARRAY); + g_value_take_boxed (&value, gateway); + g_value_array_append (values, &value); + g_value_unset (&value); + } + } + + g_ptr_array_add (addresses, values); + +next: + g_free (tmp); + } + + if (addresses->len < 1) { + g_ptr_array_free (addresses, TRUE); + addresses = NULL; + } + + return addresses; +} + +static void +ip6_addr_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + GPtrArray *addresses; + const char *setting_name = nm_setting_get_name (setting); + + addresses = read_ip6_addresses (keyfile, setting_name, key); + if (addresses) { + g_object_set (setting, key, addresses, NULL); + g_ptr_array_foreach (addresses, free_one_ip6_address, NULL); + g_ptr_array_free (addresses, TRUE); + } +} + +static void +free_one_ip6_route (gpointer data, gpointer user_data) +{ + g_value_array_free ((GValueArray *) data); +} + +static GPtrArray * +read_ip6_routes (GKeyFile *file, + const char *setting_name, + const char *key) +{ + GPtrArray *routes; + struct in6_addr addr; + guint32 prefix, metric; + int i = 0; + + routes = g_ptr_array_sized_new (3); + + /* Look for individual routes */ + while (i++ < 1000) { + gchar **tmp; + char *key_name, *str_prefix; + gsize length = 0; + int ret; + GValueArray *values; + GByteArray *address; + GValue value = { 0 }; + + key_name = g_strdup_printf ("%s%d", key, i); + tmp = g_key_file_get_string_list (file, setting_name, key_name, &length, NULL); + g_free (key_name); + + if (!tmp || !length) + break; /* all done */ + + if (length != 3) { + g_warning ("%s: ignoring invalid IPv6 address item '%s'", __func__, key_name); + goto next; + } + + /* convert the string array into IPv6 routes */ + values = g_value_array_new (4); /* NMIP6Route has 4 items */ + + /* Split the route and prefix */ + str_prefix = split_prefix (tmp[0]); + + /* destination address */ + ret = inet_pton (AF_INET6, tmp[0], &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv6 %s element '%s'", __func__, key_name, tmp[0]); + g_value_array_free (values); + goto next; + } + address = g_byte_array_new (); + g_byte_array_append (address, (guint8 *) addr.s6_addr, 16); + g_value_init (&value, DBUS_TYPE_G_UCHAR_ARRAY); + g_value_take_boxed (&value, address); + g_value_array_append (values, &value); + g_value_unset (&value); + + /* prefix */ + prefix = 0; + if (str_prefix) { + if (!get_one_int (str_prefix, 128, key_name, &prefix)) { + g_value_array_free (values); + goto next; + } + } else { + /* default to 64 if unspecified */ + prefix = 64; + } + g_value_init (&value, G_TYPE_UINT); + g_value_set_uint (&value, prefix); + g_value_array_append (values, &value); + g_value_unset (&value); + + /* next hop address */ + ret = inet_pton (AF_INET6, tmp[1], &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid IPv6 %s element '%s'", __func__, key_name, tmp[1]); + g_value_array_free (values); + goto next; + } + address = g_byte_array_new (); + g_byte_array_append (address, (guint8 *) addr.s6_addr, 16); + g_value_init (&value, DBUS_TYPE_G_UCHAR_ARRAY); + g_value_take_boxed (&value, address); + g_value_array_append (values, &value); + g_value_unset (&value); + + /* metric */ + metric = 0; + if (!get_one_int (tmp[2], G_MAXUINT32, key_name, &metric)) { + g_value_array_free (values); + goto next; + } + g_value_init (&value, G_TYPE_UINT); + g_value_set_uint (&value, metric); + g_value_array_append (values, &value); + g_value_unset (&value); + + g_ptr_array_add (routes, values); + +next: + g_strfreev (tmp); + } + + if (routes->len < 1) { + g_ptr_array_free (routes, TRUE); + routes = NULL; + } + + return routes; +} + +static void +ip6_route_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + GPtrArray *routes; + const char *setting_name = nm_setting_get_name (setting); + + routes = read_ip6_routes (keyfile, setting_name, key); + + if (routes) { + g_object_set (setting, key, routes, NULL); + g_ptr_array_foreach (routes, free_one_ip6_route, NULL); + g_ptr_array_free (routes, TRUE); + } +} + +static void +free_one_ip6_dns (gpointer data, gpointer user_data) +{ + g_byte_array_free ((GByteArray *) data, TRUE); +} + +static void +ip6_dns_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + const char *setting_name = nm_setting_get_name (setting); + GPtrArray *array = NULL; + gsize length; + char **list, **iter; + int ret; + + list = g_key_file_get_string_list (keyfile, setting_name, key, &length, NULL); + if (!list || !g_strv_length (list)) + return; + + array = g_ptr_array_sized_new (length); + for (iter = list; *iter; iter++) { + GByteArray *byte_array; + struct in6_addr addr; + + ret = inet_pton (AF_INET6, *iter, &addr); + if (ret <= 0) { + g_warning ("%s: ignoring invalid DNS server IPv6 address '%s'", __func__, *iter); + continue; + } + byte_array = g_byte_array_new (); + g_byte_array_append (byte_array, (guint8 *) addr.s6_addr, 16); + + g_ptr_array_add (array, byte_array); + } + g_strfreev (list); + + if (array) { + g_object_set (setting, key, array, NULL); + g_ptr_array_foreach (array, free_one_ip6_dns, NULL); + g_ptr_array_free (array, TRUE); + } +} + +static void +mac_address_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + const char *setting_name = nm_setting_get_name (setting); + struct ether_addr *eth; + char *tmp_string = NULL, *p; + gint *tmp_list; + GByteArray *array = NULL; + gsize length; + int i; + + p = tmp_string = g_key_file_get_string (keyfile, setting_name, key, NULL); + if (tmp_string) { + /* Look for enough ':' characters to signify a MAC address */ + i = 0; + while (*p) { + if (*p == ':') + i++; + p++; + } + if (i == 5) { + /* parse as a MAC address */ + eth = ether_aton (tmp_string); + if (eth) { + g_free (tmp_string); + array = g_byte_array_sized_new (ETH_ALEN); + g_byte_array_append (array, eth->ether_addr_octet, ETH_ALEN); + goto done; + } + } + } + g_free (tmp_string); + + /* Old format; list of ints */ + tmp_list = g_key_file_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_list[i]; + unsigned char v = (unsigned char) (val & 0xFF); + + if (val < 0 || val > 255) { + g_warning ("%s: %s / %s ignoring invalid byte element '%d' (not " + " between 0 and 255 inclusive)", __func__, setting_name, + key, val); + } else + g_byte_array_append (array, (const unsigned char *) &v, sizeof (v)); + } + g_free (tmp_list); + +done: + if (array->len == ETH_ALEN) { + g_object_set (setting, key, array, NULL); + } else { + g_warning ("%s: ignoring invalid MAC address for %s / %s", + __func__, setting_name, key); + } + g_byte_array_free (array, TRUE); +} + +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 = g_key_file_get_keys (file, setting_name, NULL, NULL); + if (!keys || !*keys) + return; + + for (iter = keys; *iter; iter++) { + value = g_key_file_get_string (file, setting_name, *iter, NULL); + if (!value) + continue; + + if (NM_IS_SETTING_VPN (setting)) { + if (strcmp (*iter, NM_SETTING_VPN_SERVICE_TYPE)) + nm_setting_vpn_add_data_item (NM_SETTING_VPN (setting), *iter, value); + } + g_free (value); + } + g_strfreev (keys); +} + +static GByteArray * +get_uchar_array (GKeyFile *keyfile, + const char *setting_name, + const char *key) +{ + GByteArray *array = NULL; + char *p, *tmp_string; + gint *tmp_list; + gsize length; + int i; + + /* New format: just a string. We try parsing the new format if there are + * no ';' in the string or it's not just numbers. + */ + p = tmp_string = g_key_file_get_string (keyfile, setting_name, key, NULL); + if (tmp_string) { + gboolean new_format = FALSE; + + if (strchr (p, ';') == NULL) + new_format = TRUE; + else { + new_format = TRUE; + while (p && *p) { + if (!isdigit (*p++)) { + new_format = FALSE; + break; + } + } + } + + if (new_format) { + array = g_byte_array_sized_new (strlen (tmp_string)); + g_byte_array_append (array, (guint8 *) tmp_string, strlen (tmp_string)); + } + g_free (tmp_string); + } + + if (!array) { + /* Old format; list of ints */ + tmp_list = g_key_file_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_list[i]; + unsigned char v = (unsigned char) (val & 0xFF); + + if (val < 0 || val > 255) { + g_warning ("%s: %s / %s ignoring invalid byte element '%d' (not " + " between 0 and 255 inclusive)", __func__, setting_name, + key, val); + } else + g_byte_array_append (array, (const unsigned char *) &v, sizeof (v)); + } + g_free (tmp_list); + } + + if (array->len == 0) { + g_byte_array_free (array, TRUE); + array = NULL; + } + return array; +} + +static void +ssid_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + const char *setting_name = nm_setting_get_name (setting); + GByteArray *array; + + array = get_uchar_array (keyfile, setting_name, key); + if (array) { + g_object_set (setting, key, array, NULL); + g_byte_array_free (array, TRUE); + } else { + g_warning ("%s: ignoring invalid SSID for %s / %s", + __func__, setting_name, key); + } +} + +static char * +get_cert_path (const char *keyfile_path, GByteArray *cert_path) +{ + const char *base; + char *p = NULL, *path, *dirname, *tmp; + + g_return_val_if_fail (keyfile_path != NULL, NULL); + g_return_val_if_fail (cert_path != NULL, NULL); + + base = path = g_malloc0 (cert_path->len + 1); + memcpy (path, cert_path->data, cert_path->len); + + if (path[0] == '/') + return path; + + p = strrchr (path, '/'); + if (p) + base = p + 1; + + dirname = g_path_get_dirname (keyfile_path); + tmp = g_build_path ("/", dirname, base, NULL); + g_free (dirname); + g_free (path); + return tmp; +} + +#define SCHEME_PATH "file://" + +static void +cert_parser (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path) +{ + const char *setting_name = nm_setting_get_name (setting); + GByteArray *array; + gboolean success = FALSE; + + array = get_uchar_array (keyfile, setting_name, key); + if (array) { + /* Value could be either: + * 1) the raw key/cert data as a blob + * 2) a path scheme (ie, starts with "file://") + * 3) a plain path + */ + if ( (array->len > strlen (SCHEME_PATH)) + && g_str_has_prefix ((const char *) array->data, SCHEME_PATH) + && (array->data[array->len - 1] == '\0')) { + /* It's the PATH scheme, can just set plain data */ + g_object_set (setting, key, array, NULL); + success = TRUE; + } else if ( (array->len < 500) + && g_utf8_validate ((const char *) array->data, array->len, NULL)) { + GByteArray *val; + char *path; + + path = get_cert_path (keyfile_path, array); + if (g_file_test (path, G_FILE_TEST_EXISTS)) { + /* Construct the proper value as required for the PATH scheme */ + val = g_byte_array_sized_new (strlen (SCHEME_PATH) + array->len + 1); + g_byte_array_append (val, (const guint8 *) SCHEME_PATH, strlen (SCHEME_PATH)); + g_byte_array_append (val, array->data, array->len); + g_byte_array_append (val, (const guint8 *) "\0", 1); + g_object_set (setting, key, val, NULL); + g_byte_array_free (val, TRUE); + success = TRUE; + } + g_free (path); + } + + if (!success) { + /* Assume it's a simple blob value of the certificate or private key's data */ + g_object_set (setting, key, array, NULL); + } + + g_byte_array_free (array, TRUE); + } else { + g_warning ("%s: ignoring invalid SSID for %s / %s", + __func__, setting_name, key); + } +} + +typedef struct { + const char *setting_name; + const char *key; + gboolean check_for_key; + void (*parser) (NMSetting *setting, const char *key, GKeyFile *keyfile, const char *keyfile_path); +} 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_IP4_CONFIG_SETTING_NAME, + NM_SETTING_IP4_CONFIG_ADDRESSES, + FALSE, + ip4_addr_parser }, + { NM_SETTING_IP6_CONFIG_SETTING_NAME, + NM_SETTING_IP6_CONFIG_ADDRESSES, + FALSE, + ip6_addr_parser }, + { NM_SETTING_IP4_CONFIG_SETTING_NAME, + NM_SETTING_IP4_CONFIG_ROUTES, + FALSE, + ip4_route_parser }, + { NM_SETTING_IP6_CONFIG_SETTING_NAME, + NM_SETTING_IP6_CONFIG_ROUTES, + FALSE, + ip6_route_parser }, + { NM_SETTING_IP4_CONFIG_SETTING_NAME, + NM_SETTING_IP4_CONFIG_DNS, + FALSE, + ip4_dns_parser }, + { NM_SETTING_IP6_CONFIG_SETTING_NAME, + NM_SETTING_IP6_CONFIG_DNS, + FALSE, + ip6_dns_parser }, + { NM_SETTING_WIRED_SETTING_NAME, + NM_SETTING_WIRED_MAC_ADDRESS, + TRUE, + mac_address_parser }, + { NM_SETTING_WIRED_SETTING_NAME, + NM_SETTING_WIRED_CLONED_MAC_ADDRESS, + TRUE, + mac_address_parser }, + { NM_SETTING_WIRELESS_SETTING_NAME, + NM_SETTING_WIRELESS_MAC_ADDRESS, + TRUE, + mac_address_parser }, + { NM_SETTING_WIRELESS_SETTING_NAME, + NM_SETTING_WIRELESS_CLONED_MAC_ADDRESS, + TRUE, + mac_address_parser }, + { NM_SETTING_WIRELESS_SETTING_NAME, + NM_SETTING_WIRELESS_BSSID, + TRUE, + mac_address_parser }, + { NM_SETTING_BLUETOOTH_SETTING_NAME, + NM_SETTING_BLUETOOTH_BDADDR, + TRUE, + mac_address_parser }, + { NM_SETTING_WIRELESS_SETTING_NAME, + NM_SETTING_WIRELESS_SSID, + TRUE, + ssid_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 }, + { NULL, NULL, FALSE } +}; + +typedef struct { + GKeyFile *keyfile; + const char *keyfile_path; +} ReadInfo; + +static void +read_one_setting_value (NMSetting *setting, + const char *key, + const GValue *value, + GParamFlags flags, + gpointer user_data) +{ + ReadInfo *info = user_data; + const char *setting_name; + GType type; + GError *err = NULL; + gboolean check_for_key = TRUE; + KeyParser *parser = &key_parsers[0]; + + /* 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; + + /* 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 && !g_key_file_has_key (info->keyfile, setting_name, key, &err)) { + /* Key doesn't exist or an error ocurred, thus nothing to do. */ + if (err) { + g_warning ("Error loading setting '%s' value: %s", setting_name, err->message); + g_error_free (err); + } + return; + } + + /* If there's a custom parser for this key, handle that before the generic + * parsers below. + */ + if (parser && parser->setting_name) { + (*parser->parser) (setting, key, info->keyfile, info->keyfile_path); + return; + } + + type = G_VALUE_TYPE (value); + + if (type == G_TYPE_STRING) { + char *str_val; + + str_val = g_key_file_get_string (info->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 = g_key_file_get_integer (info->keyfile, setting_name, key, NULL); + if (int_val < 0) + g_warning ("Casting negative value (%i) to uint", int_val); + g_object_set (setting, key, int_val, NULL); + } else if (type == G_TYPE_INT) { + int int_val; + + int_val = g_key_file_get_integer (info->keyfile, setting_name, key, NULL); + g_object_set (setting, key, int_val, NULL); + } else if (type == G_TYPE_BOOLEAN) { + gboolean bool_val; + + bool_val = g_key_file_get_boolean (info->keyfile, setting_name, key, NULL); + g_object_set (setting, key, bool_val, NULL); + } else if (type == G_TYPE_CHAR) { + int int_val; + + int_val = g_key_file_get_integer (info->keyfile, setting_name, key, NULL); + if (int_val < G_MININT8 || int_val > G_MAXINT8) + g_warning ("Casting value (%i) to char", int_val); + + g_object_set (setting, key, int_val, NULL); + } else if (type == G_TYPE_UINT64) { + char *tmp_str; + guint64 uint_val; + + tmp_str = g_key_file_get_value (info->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 == DBUS_TYPE_G_UCHAR_ARRAY) { + gint *tmp; + GByteArray *array; + gsize length; + int i; + + tmp = g_key_file_get_integer_list (info->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) { + g_warning ("%s: %s / %s ignoring invalid byte element '%d' (not " + " between 0 and 255 inclusive)", __func__, setting_name, + key, val); + } else + g_byte_array_append (array, (const unsigned char *) &v, sizeof (v)); + } + + g_object_set (setting, key, array, NULL); + g_byte_array_free (array, TRUE); + g_free (tmp); + } else if (type == DBUS_TYPE_G_LIST_OF_STRING) { + gchar **sa; + gsize length; + int i; + GSList *list = NULL; + + sa = g_key_file_get_string_list (info->keyfile, setting_name, key, &length, NULL); + for (i = 0; i < length; i++) + list = g_slist_prepend (list, sa[i]); + + list = g_slist_reverse (list); + g_object_set (setting, key, list, NULL); + + g_slist_free (list); + g_strfreev (sa); + } else if (type == DBUS_TYPE_G_MAP_OF_STRING) { + read_hash_of_string (info->keyfile, setting, key); + } else if (type == DBUS_TYPE_G_UINT_ARRAY) { + if (!read_array_of_uint (info->keyfile, setting, key)) { + g_warning ("Unhandled setting property type (read): '%s/%s' : '%s'", + setting_name, key, G_VALUE_TYPE_NAME (value)); + } + } else { + g_warning ("Unhandled setting property type (read): '%s/%s' : '%s'", + setting_name, key, G_VALUE_TYPE_NAME (value)); + } +} + +static NMSetting * +read_setting (GKeyFile *file, const char *keyfile_path, const char *setting_name) +{ + NMSetting *setting; + ReadInfo info = { file, keyfile_path }; + + setting = nm_connection_create_setting (setting_name); + if (setting) + nm_setting_enumerate_values (setting, read_one_setting_value, &info); + else + g_warning ("Invalid setting name '%s'", setting_name); + + return setting; +} + +static void +read_vpn_secrets (GKeyFile *file, NMSettingVPN *s_vpn) +{ + char **keys, **iter; + + keys = g_key_file_get_keys (file, VPN_SECRETS_GROUP, NULL, NULL); + for (iter = keys; *iter; iter++) { + char *secret; + + secret = g_key_file_get_string (file, VPN_SECRETS_GROUP, *iter, NULL); + if (secret) { + nm_setting_vpn_add_secret (s_vpn, *iter, secret); + g_free (secret); + } + } + g_strfreev (keys); +} + +NMConnection * +connection_from_file (const char *filename, GError **error) +{ + GKeyFile *key_file; + struct stat statbuf; + gboolean bad_owner, bad_permissions; + NMConnection *connection = NULL; + NMSettingConnection *s_con; + NMSetting *setting; + gchar **groups; + gsize length; + int i; + gboolean vpn_secrets = FALSE; + const char *ctype; + GError *verify_error = NULL; + + if (stat (filename, &statbuf) != 0 || !S_ISREG (statbuf.st_mode)) { + g_set_error_literal (error, KEYFILE_PLUGIN_ERROR, 0, + "File did not exist or was not a regular file"); + return NULL; + } + + bad_owner = getuid () != statbuf.st_uid; + bad_permissions = statbuf.st_mode & 0077; + + if (bad_owner || bad_permissions) { + g_set_error (error, KEYFILE_PLUGIN_ERROR, 0, + "File permissions (%o) or owner (%d) were insecure", + statbuf.st_mode, statbuf.st_uid); + return NULL; + } + + key_file = g_key_file_new (); + if (!g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, error)) + goto out; + + connection = nm_connection_new (); + + groups = g_key_file_get_groups (key_file, &length); + for (i = 0; i < length; i++) { + /* Only read out secrets when needed */ + if (!strcmp (groups[i], VPN_SECRETS_GROUP)) { + vpn_secrets = TRUE; + continue; + } + + setting = read_setting (key_file, filename, groups[i]); + if (setting) + nm_connection_add_setting (connection, setting); + } + + /* Make sure that we have the base device type setting even if + * the keyfile didn't include it, which can happen when the base + * device type setting is all default values (like ethernet). + */ + s_con = (NMSettingConnection *) nm_connection_get_setting (connection, NM_TYPE_SETTING_CONNECTION); + if (s_con) { + ctype = nm_setting_connection_get_connection_type (s_con); + setting = nm_connection_get_setting_by_name (connection, ctype); + if (ctype) { + if (!setting && !strcmp (ctype, NM_SETTING_WIRED_SETTING_NAME)) + nm_connection_add_setting (connection, nm_setting_wired_new ()); + } + } + + /* Handle vpn secrets after the 'vpn' setting was read */ + if (vpn_secrets) { + NMSettingVPN *s_vpn; + + s_vpn = (NMSettingVPN *) nm_connection_get_setting (connection, NM_TYPE_SETTING_VPN); + if (s_vpn) + read_vpn_secrets (key_file, s_vpn); + } + + g_strfreev (groups); + + /* Verify the connection */ + if (!nm_connection_verify (connection, &verify_error)) { + g_set_error (error, KEYFILE_PLUGIN_ERROR, 0, + "invalid or missing connection property '%s'", + (verify_error && verify_error->message) ? verify_error->message : "(unknown)"); + g_clear_error (&verify_error); + g_object_unref (connection); + connection = NULL; + } + +out: + g_key_file_free (key_file); + return connection; +} |