<varlistentry>
<term><varname>Label=</varname></term>
<listitem>
- <para>An address label.</para>
+ <para>Specifies the label for the IPv4 address. The label must be a 7-bit ASCII string with
+ a length of 1…15 characters. Defaults to unset.</para>
</listitem>
</varlistentry>
<varlistentry>
<!-- How to use the DHCP lease -->
+ <varlistentry>
+ <term><varname>Label=</varname></term>
+ <listitem>
+ <para>Specifies the label for the IPv4 address received from the DHCP server.
+ The label must be a 7-bit ASCII string with a length of 1…15 characters.
+ Defaults to unset.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><varname>UseDNS=</varname></term>
<listitem>
<term><varname>SamplePoint=</varname></term>
<listitem>
<para>Optional sample point in percent with one decimal (e.g. <literal>75%</literal>,
- <literal>87.5%</literal>) or permille (e.g. <literal>875‰</literal>).</para>
+ <literal>87.5%</literal>) or permille (e.g. <literal>875‰</literal>). This will be ignored when
+ <varname>BitRate=</varname> is unspecified.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>TimeQuantaNSec=</varname></term>
+ <term><varname>PropagationSegment=</varname></term>
+ <term><varname>PhaseBufferSegment1=</varname></term>
+ <term><varname>PhaseBufferSegment2=</varname></term>
+ <term><varname>SyncJumpWidth=</varname></term>
+ <listitem>
+ <para>Specifies the time quanta, propagation segment, phase buffer segment 1 and 2, and the
+ synchronization jump width, which allow to define the CAN bit-timing in a hardware
+ independent format as proposed by the Bosch CAN 2.0 Specification.
+ <varname>TimeQuantaNSec=</varname> takes a timespan in nanoseconds.
+ <varname>PropagationSegment=</varname>, <varname>PhaseBufferSegment1=</varname>,
+ <varname>PhaseBufferSegment2=</varname>, and <varname>SyncJumpWidth=</varname> take number
+ of time quantum specified in <varname>TimeQuantaNSec=</varname> and must be an unsigned
+ integer in the range 0…4294967295. These settings except for
+ <varname>SyncJumpWidth=</varname> will be ignored when <varname>BitRate=</varname> is
+ specified.</para>
</listitem>
</varlistentry>
<varlistentry>
analogous to the <varname>BitRate=</varname> and <varname>SamplePoint=</varname> keys.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>DataTimeQuantaNSec=</varname></term>
+ <term><varname>DataPropagationSegment=</varname></term>
+ <term><varname>DataPhaseBufferSegment1=</varname></term>
+ <term><varname>DataPhaseBufferSegment2=</varname></term>
+ <term><varname>DataSyncJumpWidth=</varname></term>
+ <listitem>
+ <para>Specifies the time quanta, propagation segment, phase buffer segment 1 and 2, and the
+ synchronization jump width for the data phase, if CAN-FD is used. These settings are
+ analogous to the <varname>TimeQuantaNSec=</varname> or related settings.</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><varname>FDMode=</varname></term>
<listitem>
<para>Takes a boolean. When <literal>yes</literal>, CAN-FD mode is enabled for the interface.
Note, that a bitrate and optional sample point should also be set for the CAN-FD data phase using
- the <varname>DataBitRate=</varname> and <varname>DataSamplePoint=</varname> keys.</para>
+ the <varname>DataBitRate=</varname> and <varname>DataSamplePoint=</varname> keys, or
+ <varname>DataTimeQuanta=</varname> and related settings.</para>
</listitem>
</varlistentry>
<varlistentry>
<varlistentry>
<term><varname>Termination=</varname></term>
<listitem>
- <para>Takes a boolean. When <literal>yes</literal>, the termination resistor will be selected for
- the bias network. When unset, the kernel's default will be used.</para>
+ <para>Takes a boolean or a termination resistor value in ohm in the range 0–65535. When
+ <literal>yes</literal>, the termination resistor is set to 120 ohm. When
+ <literal>no</literal> or <literal>0</literal> is set, the termination resistor is disabled.
+ When unset, the kernel's default will be used.</para>
</listitem>
</varlistentry>
<varlistentry>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>Loopback=</varname></term>
+ <listitem>
+ <para>Takes a boolean. When <literal>yes</literal>, loopback mode is enabled. When the
+ loopback mode is enabled, the interface treats messages transmitted by itself as received
+ messages. The loopback mode is important to debug CAN networks. When unset, the kernel's
+ default will be used.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>OneShot=</varname></term>
+ <listitem>
+ <para>Takes a boolean. When <literal>yes</literal>, one-shot mode is enabled. When unset,
+ the kernel's default will be used.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>PresumeAck=</varname></term>
+ <listitem>
+ <para>Takes a boolean. When <literal>yes</literal>, the interface will ignore missing CAN
+ ACKs. When unset, the kernel's default will be used.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>ClassicDataLengthCode=</varname></term>
+ <listitem>
+ <para>Takes a boolean. When <literal>yes</literal>, the interface will handle the 4bit data
+ length code (DLC). When unset, the kernel's default will be used.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
addr->route_metric = link->network->dhcp_route_metric;
addr->duplicate_address_detection = link->network->dhcp_send_decline ? ADDRESS_FAMILY_IPV4 : ADDRESS_FAMILY_NO;
+ if (link->network->dhcp_label) {
+ addr->label = strdup(link->network->dhcp_label);
+ if (!addr->label)
+ return log_oom();
+ }
+
if (address_get(link, addr, NULL) < 0)
link->dhcp4_configured = false;
return 0;
}
- int config_parse_dhcp_fallback_lease_lifetime(const char *unit,
+ int config_parse_dhcp_fallback_lease_lifetime(
+ const char *unit,
const char *filename,
unsigned line,
const char *section,
const char *rvalue,
void *data,
void *userdata) {
+
Network *network = userdata;
uint32_t k;
return 0;
}
+int config_parse_dhcp_label(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **label = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ *label = mfree(*label);
+ return 0;
+ }
+
+ if (!address_label_valid(rvalue)) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "Address label is too long or invalid, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ return free_and_strdup_warn(label, rvalue);
+}
+
static const char* const dhcp_client_identifier_table[_DHCP_CLIENT_ID_MAX] = {
[DHCP_CLIENT_ID_MAC] = "mac",
[DHCP_CLIENT_ID_DUID] = "duid",
.ipv6_accept_ra_route_metric = DHCP_ROUTE_METRIC,
.ipv6_accept_ra_start_dhcp6_client = IPV6_ACCEPT_RA_START_DHCP6_CLIENT_YES,
- .can_triple_sampling = -1,
- .can_berr_reporting = -1,
.can_termination = -1,
- .can_listen_only = -1,
- .can_fd_mode = -1,
- .can_non_iso = -1,
};
r = config_parse_many(
free(network->dhcp_mudurl);
strv_free(network->dhcp_user_class);
free(network->dhcp_hostname);
+ free(network->dhcp_label);
set_free(network->dhcp_deny_listed_ip);
set_free(network->dhcp_allow_listed_ip);
set_free(network->dhcp_request_options);
return false;
}
- int config_parse_stacked_netdev(const char *unit,
+ int config_parse_stacked_netdev(
+ const char *unit,
const char *filename,
unsigned line,
const char *section,
const char *rvalue,
void *data,
void *userdata) {
+
_cleanup_free_ char *name = NULL;
NetDevKind kind = ltype;
Hashmap **h = data;
void *data,
void *userdata) {
- _cleanup_free_ char *hn = NULL;
char **hostname = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
- assert(hostname);
+ assert(data);
- r = config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &hn, userdata);
- if (r < 0)
- return r;
+ if (isempty(rvalue)) {
+ *hostname = mfree(*hostname);
+ return 0;
+ }
- if (!hostname_is_valid(hn, 0)) {
+ if (!hostname_is_valid(rvalue, 0)) {
log_syntax(unit, LOG_WARNING, filename, line, 0,
"Hostname is not valid, ignoring assignment: %s", rvalue);
return 0;
}
- r = dns_name_is_valid(hn);
+ r = dns_name_is_valid(rvalue);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Failed to check validity of hostname '%s', ignoring assignment: %m", rvalue);
return 0;
}
- return free_and_replace(*hostname, hn);
+ return free_and_strdup_warn(hostname, rvalue);
}
int config_parse_timezone(
void *data,
void *userdata) {
- _cleanup_free_ char *tz = NULL;
- char **datap = data;
+ char **tz = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
- assert(datap);
+ assert(data);
- r = config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &tz, userdata);
- if (r < 0)
- return r;
+ if (isempty(rvalue)) {
+ *tz = mfree(*tz);
+ return 0;
+ }
- if (!timezone_is_valid(tz, LOG_WARNING)) {
- log_syntax(unit, LOG_WARNING, filename, line, 0,
+ r = verify_timezone(rvalue, LOG_WARNING);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
"Timezone is not valid, ignoring assignment: %s", rvalue);
return 0;
}
- return free_and_replace(*datap, tz);
+ return free_and_strdup_warn(tz, rvalue);
}
int config_parse_dns(
projects / thirdparty / systemd.git / commitdiff
