diff options
Diffstat (limited to 'src/core/initrd/nmi-dt-reader.c')
| -rw-r--r-- | src/core/initrd/nmi-dt-reader.c | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/src/core/initrd/nmi-dt-reader.c b/src/core/initrd/nmi-dt-reader.c deleted file mode 100644 index 63e4524b..00000000 --- a/src/core/initrd/nmi-dt-reader.c +++ /dev/null @@ -1,371 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1-or-later */ -/* - * Copyright (C) 2019 Red Hat, Inc. - */ - -#include "src/core/nm-default-daemon.h" - -#include "nm-initrd-generator.h" - -#include <arpa/inet.h> -#include <linux/if_ether.h> - -#include "nm-core-internal.h" - -/*****************************************************************************/ - -#define _NMLOG(level, domain, ...) \ - nm_log((level), \ - (domain), \ - NULL, \ - NULL, \ - "dt-reader: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__) _NM_UTILS_MACRO_REST(__VA_ARGS__)) - -/*****************************************************************************/ - -static gboolean -dt_get_property(const char *base, - const char *dev, - const char *prop, - char ** contents, - size_t * length) -{ - gs_free char *filename = g_build_filename(base, dev, prop, NULL); - gs_free_error GError *error = NULL; - - if (!g_file_test(filename, G_FILE_TEST_EXISTS)) - return FALSE; - - if (!contents) - return TRUE; - - if (!g_file_get_contents(filename, contents, length, &error)) { - _LOGW(LOGD_CORE, "%s: Can not read the %s property: %s", dev, prop, error->message); - return FALSE; - } - - return TRUE; -} - -static NMIPAddress * -dt_get_ipaddr_property(const char *base, const char *dev, const char *prop, int *family) -{ - gs_free char *buf = NULL; - size_t len; - int f; - - if (!dt_get_property(base, dev, prop, &buf, &len)) - return NULL; - - f = nm_utils_addr_family_from_size(len); - if (f == AF_UNSPEC || (*family != AF_UNSPEC && *family != f)) { - _LOGW(LOGD_CORE, "%s: Address %s has unrecognized length (%zd)", dev, prop, len); - return NULL; - } - - *family = f; - return nm_ip_address_new_binary(f, buf, 0, NULL); -} - -static char * -dt_get_hwaddr_property(const char *base, const char *dev, const char *prop) -{ - gs_free guint8 *buf = NULL; - size_t len; - - if (!dt_get_property(base, dev, prop, (char **) &buf, &len)) - return NULL; - - if (len != ETH_ALEN) { - _LOGW(LOGD_CORE, "%s: MAC address %s has unrecognized length (%zd)", dev, prop, len); - return NULL; - } - - return g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", - buf[0], - buf[1], - buf[2], - buf[3], - buf[4], - buf[4]); -} - -static NMIPAddress * -str_addr(const char *str, int *family) -{ - NMIPAddr addr_bin; - - if (!nm_utils_parse_inaddr_bin_full(*family, TRUE, str, family, &addr_bin)) { - _LOGW(LOGD_CORE, "Malformed IP address: '%s'", str); - return NULL; - } - return nm_ip_address_new_binary(*family, &addr_bin, 0, NULL); -} - -NMConnection * -nmi_dt_reader_parse(const char *sysfs_dir) -{ - gs_unref_object NMConnection *connection = NULL; - gs_free char * base = NULL; - gs_free char * bootpath = NULL; - gs_strfreev char ** tokens = NULL; - char * path = NULL; - gboolean bootp = FALSE; - const char * s_ipaddr = NULL; - const char * s_netmask = NULL; - const char * s_gateway = NULL; - nm_auto_unref_ip_address NMIPAddress *ipaddr = NULL; - nm_auto_unref_ip_address NMIPAddress *gateway = NULL; - const char * duplex = NULL; - gs_free char * hwaddr = NULL; - gs_free char * local_hwaddr = NULL; - gs_free char * hostname = NULL; - guint32 speed = 0; - int prefix = -1; - NMSettingIPConfig * s_ip = NULL; - NMSetting * s_ip4 = NULL; - NMSetting * s_ip6 = NULL; - NMSetting * s_wired = NULL; - int family = AF_UNSPEC; - int i = 0; - char * c; - gs_free_error GError *error = NULL; - - base = g_build_filename(sysfs_dir, "firmware", "devicetree", "base", NULL); - - if (!dt_get_property(base, "chosen", "bootpath", &bootpath, NULL)) - return NULL; - - c = strchr(bootpath, ':'); - if (c) { - *c = '\0'; - path = c + 1; - } else { - path = ""; - } - - dt_get_property(base, "chosen", "client-name", &hostname, NULL); - - local_hwaddr = dt_get_hwaddr_property(base, bootpath, "local-mac-address"); - hwaddr = dt_get_hwaddr_property(base, bootpath, "mac-address"); - if (nm_streq0(local_hwaddr, hwaddr)) - nm_clear_g_free(&local_hwaddr); - - tokens = g_strsplit(path, ",", 0); - - /* - * Ethernet device settings. Defined by "Open Firmware, - * Recommended Practice: Device Support Extensions, Version 1.0 [1] - * [1] https://www.devicetree.org/open-firmware/practice/devicex/dse1_0a.ps - */ - - for (i = 0; tokens[i]; i++) { - /* Skip these. They have magical meaning for OpenFirmware. */ - if (NM_IN_STRSET(tokens[i], "nfs", "last")) - continue; - if (nm_streq(tokens[i], "promiscuous")) { - /* Ignore. */ - continue; - } - - if (g_str_has_prefix(tokens[i], "speed=")) { - speed = _nm_utils_ascii_str_to_int64(tokens[i] + 6, 10, 0, G_MAXUINT32, 0); - continue; - } - - if (g_str_has_prefix(tokens[i], "duplex=auto")) { - continue; - } else if (g_str_has_prefix(tokens[i], "duplex=half") - || g_str_has_prefix(tokens[i], "duplex=full")) { - duplex = tokens[i] + 7; - continue; - } - - break; - } - - /* - * Network boot configuration. Defined by "Open Firmware, - * Recommended Practice: TFTP Booting Extension, Version 1.0 [1] - * [1] https://www.devicetree.org/open-firmware/practice/obp-tftp/tftp1_0.pdf - */ - - for (; tokens[i]; i++) { - if (NM_IN_STRSET(tokens[i], "bootp", "dhcp", "rarp")) { - bootp = TRUE; - continue; - } - break; - } - - /* s-iaddr, or perhaps a raw absolute filename */ - if (tokens[i] && tokens[i][0] != '/') - i++; - - /* filename */ - if (tokens[i]) - i++; - - /* c-iaddr */ - if (tokens[i]) { - s_ipaddr = tokens[i]; - i++; - } - - /* g-iaddr */ - if (tokens[i]) { - s_gateway = tokens[i]; - i++; - } - - if (tokens[i] && (strchr(tokens[i], '.') || strchr(tokens[i], ':'))) { - /* yaboot claims the mask can be specified here, - * though it doesn't support it. */ - s_netmask = tokens[i]; - i++; - } - - /* bootp-retries */ - if (tokens[i]) - i++; - - /* tftp-retries */ - if (tokens[i]) - i++; - - if (tokens[i]) { - /* yaboot accepts a mask here */ - s_netmask = tokens[i]; - i++; - } - - connection = nm_simple_connection_new(); - - nm_connection_add_setting(connection, - g_object_new(NM_TYPE_SETTING_CONNECTION, - NM_SETTING_CONNECTION_TYPE, - NM_SETTING_WIRED_SETTING_NAME, - NM_SETTING_CONNECTION_ID, - "OpenFirmware Connection", - NULL)); - - s_ip4 = nm_setting_ip4_config_new(); - nm_connection_add_setting(connection, s_ip4); - - s_ip6 = nm_setting_ip6_config_new(); - nm_connection_add_setting(connection, s_ip6); - - g_object_set(s_ip6, - NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE, - (int) NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64, - NULL); - - if (!bootp && dt_get_property(base, "chosen", "bootp-response", NULL, NULL)) - bootp = TRUE; - - if (!bootp) { - nm_auto_unref_ip_address NMIPAddress *netmask = NULL; - - netmask = dt_get_ipaddr_property(base, "chosen", "netmask-ip", &family); - gateway = dt_get_ipaddr_property(base, "chosen", "gateway-ip", &family); - if (gateway) - s_gateway = nm_ip_address_get_address(gateway); - ipaddr = dt_get_ipaddr_property(base, "chosen", "client-ip", &family); - - if (family == AF_UNSPEC) { - nm_assert(netmask == NULL); - nm_assert(gateway == NULL); - nm_assert(ipaddr == NULL); - - netmask = str_addr(s_netmask, &family); - ipaddr = str_addr(s_ipaddr, &family); - - prefix = _nm_utils_ascii_str_to_int64(s_netmask, 10, 0, 128, -1); - } - - if (prefix == -1 && family == AF_INET && netmask) { - guint32 netmask_v4; - - nm_ip_address_get_address_binary(netmask, &netmask_v4); - prefix = nm_utils_ip4_netmask_to_prefix(netmask_v4); - } - - if (prefix == -1) - _LOGW(LOGD_CORE, "Unable to determine the network prefix"); - else - nm_ip_address_set_prefix(ipaddr, prefix); - } - - if (!ipaddr) { - family = AF_UNSPEC; - bootp = TRUE; - } - - if (bootp) { - g_object_set(s_ip4, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP4_CONFIG_METHOD_AUTO, - NM_SETTING_IP_CONFIG_DHCP_HOSTNAME, - hostname, - NULL); - g_object_set(s_ip6, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP6_CONFIG_METHOD_AUTO, - NM_SETTING_IP_CONFIG_DHCP_HOSTNAME, - hostname, - NULL); - } else { - switch (family) { - case AF_INET: - s_ip = (NMSettingIPConfig *) s_ip4; - g_object_set(s_ip4, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP4_CONFIG_METHOD_MANUAL, - NULL); - g_object_set(s_ip6, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP6_CONFIG_METHOD_DISABLED, - NULL); - break; - case AF_INET6: - s_ip = (NMSettingIPConfig *) s_ip6; - g_object_set(s_ip4, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP4_CONFIG_METHOD_DISABLED, - NULL); - g_object_set(s_ip6, - NM_SETTING_IP_CONFIG_METHOD, - NM_SETTING_IP6_CONFIG_METHOD_MANUAL, - NULL); - break; - default: - g_return_val_if_reached(NULL); - } - - nm_setting_ip_config_add_address(s_ip, ipaddr); - g_object_set(s_ip, NM_SETTING_IP_CONFIG_GATEWAY, s_gateway, NULL); - } - - if (duplex || speed || hwaddr || local_hwaddr) { - s_wired = nm_setting_wired_new(); - nm_connection_add_setting(connection, s_wired); - - g_object_set(s_wired, - NM_SETTING_WIRED_SPEED, - speed, - NM_SETTING_WIRED_DUPLEX, - duplex, - NM_SETTING_WIRED_MAC_ADDRESS, - hwaddr, - NM_SETTING_WIRED_CLONED_MAC_ADDRESS, - local_hwaddr, - NULL); - } - - if (!nm_connection_normalize(connection, NULL, NULL, &error)) { - _LOGW(LOGD_CORE, "Generated an invalid connection: %s", error->message); - nm_clear_pointer(&connection, g_object_unref); - } - - return g_steal_pointer(&connection); -} |