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https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-10-06 16:21:50 +00:00
initrd: add support for rd.net.dhcp.dscp property
Add a new kernel command line option, so that the DSCP value can by changed even in early boot.
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3cf6a805ba
commit
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@ -160,6 +160,7 @@
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<member><option>rd.net.timeout.dhcp</option></member>
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<member><option>rd.net.dhcp.retry</option></member>
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<member><option>rd.net.dhcp.vendor-class</option></member>
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<member><option>rd.net.dhcp.dscp</option></member>
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<member><option>rd.net.timeout.carrier</option></member>
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<member><option>rd.znet</option></member>
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<member><option>rd.znet_ifname</option></member>
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@ -223,6 +224,15 @@
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<replaceable>SPEED</replaceable> accepts positive integer values.
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</para>
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</listitem>
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<listitem>
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<para>NetworkManager supports the
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<option>rd.net.dhcp.dscp</option>={<replaceable>CS0</replaceable>|<replaceable>CS4</replaceable>|<replaceable>CS6</replaceable>}
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kernel command line option to set a specific DSCP (TOS) value
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in the IP header of DHCP messages.
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</para>
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</listitem>
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</itemizedlist>
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</refsect1>
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@ -39,6 +39,7 @@ typedef struct {
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gboolean ignore_auto_dns;
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int dhcp_timeout;
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char *dhcp4_vci;
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char *dhcp_dscp;
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gint64 carrier_timeout_sec;
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} Reader;
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@ -73,6 +74,7 @@ reader_destroy(Reader *reader, gboolean free_hash)
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nm_clear_g_free(&reader->hostname);
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g_hash_table_unref(reader->znet_ifnames);
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nm_clear_g_free(&reader->dhcp4_vci);
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nm_clear_g_free(&reader->dhcp_dscp);
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nm_g_slice_free(reader);
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if (!free_hash)
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return g_steal_pointer(&hash);
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@ -122,6 +124,8 @@ reader_create_connection(Reader *reader,
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reader->dhcp_timeout,
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NM_SETTING_IP4_CONFIG_DHCP_VENDOR_CLASS_IDENTIFIER,
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reader->dhcp4_vci,
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NM_SETTING_IP_CONFIG_DHCP_DSCP,
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reader->dhcp_dscp,
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NM_SETTING_IP_CONFIG_REQUIRED_TIMEOUT,
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NMI_IP_REQUIRED_TIMEOUT_MSEC,
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NULL);
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@ -1289,6 +1293,8 @@ _normalize_conn(gpointer key, gpointer value, gpointer user_data)
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NULL,
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NM_SETTING_IP4_CONFIG_DHCP_VENDOR_CLASS_IDENTIFIER,
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NULL,
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NM_SETTING_IP_CONFIG_DHCP_DSCP,
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NULL,
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NULL);
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}
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}
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@ -1429,6 +1435,13 @@ nmi_cmdline_reader_parse(const char *etc_connections_dir,
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} else if (nm_streq(tag, "rd.net.dhcp.vendor-class")) {
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if (nm_utils_validate_dhcp4_vendor_class_id(argument, NULL))
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nm_strdup_reset(&reader->dhcp4_vci, argument);
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} else if (nm_streq(tag, "rd.net.dhcp.dscp")) {
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gs_free_error GError *error = NULL;
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if (nm_utils_validate_dhcp_dscp(argument, &error))
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nm_strdup_reset(&reader->dhcp_dscp, argument);
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else
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_LOGW(LOGD_CORE, "Ignoring 'rd.net.dhcp.dscp=%s': %s", argument, error->message);
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} else if (nm_streq(tag, "rd.net.timeout.carrier")) {
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reader->carrier_timeout_sec =
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_nm_utils_ascii_str_to_int64(argument, 10, 0, G_MAXINT32, 0);
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@ -1491,8 +1504,9 @@ nmi_cmdline_reader_parse(const char *etc_connections_dir,
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} else if (g_ascii_strcasecmp(tag, "BOOTIF") == 0) {
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nm_clear_g_free(&bootif_val);
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bootif_val = g_strdup(argument);
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} else if (nm_streq(tag, "rd.ethtool"))
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} else if (nm_streq(tag, "rd.ethtool")) {
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reader_parse_ethtool(reader, argument);
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}
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}
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for (i = 0; i < reader->vlan_parents->len; i++) {
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@ -2354,6 +2354,33 @@ test_dhcp_vendor_class_id(void)
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g_assert(nm_setting_ip4_config_get_dhcp_vendor_class_identifier(s_ip4) == NULL);
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}
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static void
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test_dhcp_dscp(void)
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{
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const char *const *ARGV;
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gs_unref_object NMConnection *connection = NULL;
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NMSettingIPConfig *s_ip4;
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ARGV = NM_MAKE_STRV("rd.net.dhcp.dscp=CS4", "ip=eno1:dhcp");
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connection = _parse_con(ARGV, "eno1");
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s_ip4 = NM_SETTING_IP_CONFIG(nm_connection_get_setting_ip4_config(connection));
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g_assert_cmpstr(nm_setting_ip_config_get_dhcp_dscp(s_ip4), ==, "CS4");
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g_clear_object(&connection);
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ARGV = NM_MAKE_STRV("rd.net.dhcp.dscp=CS0", "ip=eno1:dhcp");
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connection = _parse_con(ARGV, "eno1");
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s_ip4 = NM_SETTING_IP_CONFIG(nm_connection_get_setting_ip4_config(connection));
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g_assert_cmpstr(nm_setting_ip_config_get_dhcp_dscp(s_ip4), ==, "CS0");
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g_clear_object(&connection);
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ARGV = NM_MAKE_STRV("ip=eno1:dhcp");
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connection = _parse_con(ARGV, "eno1");
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s_ip4 = NM_SETTING_IP_CONFIG(nm_connection_get_setting_ip4_config(connection));
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g_assert_cmpstr(nm_setting_ip_config_get_dhcp_dscp(s_ip4), ==, NULL);
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}
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static void
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test_infiniband_iface(void)
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{
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@ -2652,6 +2679,7 @@ main(int argc, char **argv)
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g_test_add_func("/initrd/cmdline/neednet/no_args", test_neednet_no_args);
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g_test_add_func("/initrd/cmdline/neednet/args", test_neednet_args);
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g_test_add_func("/initrd/cmdline/dhcp/vendor_class_id", test_dhcp_vendor_class_id);
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g_test_add_func("/initrd/cmdline/dhcp/dscp", test_dhcp_dscp);
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g_test_add_func("/initrd/cmdline/infiniband/iface", test_infiniband_iface);
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g_test_add_func("/initrd/cmdline/infiniband/mac", test_infiniband_mac);
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g_test_add_func("/initrd/cmdline/infiniband/pkey", test_infiniband_pkey);
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