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-rw-r--r--man/systemd.netdev.xml19
-rw-r--r--src/network/networkd-netdev-gperf.gperf2
-rw-r--r--src/network/networkd-netdev-vxlan.c100
-rw-r--r--src/network/networkd-netdev-vxlan.h25
4 files changed, 146 insertions, 0 deletions
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index 16e41e05b3..b697d0c9a6 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -493,6 +493,25 @@
VXLAN Group Policy </ulink> document. Defaults to false.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>DestinationPort=</varname></term>
+ <listitem>
+ <para>Configures the default destination UDP port on a per-device basis.
+ If destination port is not specified then Linux kernel default will be used.
+ Set destination port 4789 to get the IANA assigned value,
+ and destination port 0 to get default values.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>PortRange=</varname></term>
+ <listitem>
+ <para>Configures VXLAN port range. VXLAN bases source
+ UDP port based on flow to help the receiver to be able
+ to load balance based on outer header flow. It
+ restricts the port range to the normal UDP local
+ ports, and allows overriding via configuration.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
<refsect1>
diff --git a/src/network/networkd-netdev-gperf.gperf b/src/network/networkd-netdev-gperf.gperf
index 4a4b400e41..8f506af092 100644
--- a/src/network/networkd-netdev-gperf.gperf
+++ b/src/network/networkd-netdev-gperf.gperf
@@ -57,6 +57,8 @@ VXLAN.UDP6ZeroCheckSumTx, config_parse_bool, 0,
VXLAN.FDBAgeingSec, config_parse_sec, 0, offsetof(VxLan, fdb_ageing)
VXLAN.GroupPolicyExtension, config_parse_bool, 0, offsetof(VxLan, group_policy)
VXLAN.MaximumFDBEntries, config_parse_unsigned, 0, offsetof(VxLan, max_fdb)
+VXLAN.PortRange, config_parse_port_range, 0, 0
+VXLAN.DestinationPort, config_parse_destination_port, 0, offsetof(VxLan, dest_port)
Tun.OneQueue, config_parse_bool, 0, offsetof(TunTap, one_queue)
Tun.MultiQueue, config_parse_bool, 0, offsetof(TunTap, multi_queue)
Tun.PacketInfo, config_parse_bool, 0, offsetof(TunTap, packet_info)
diff --git a/src/network/networkd-netdev-vxlan.c b/src/network/networkd-netdev-vxlan.c
index 7932b93335..531f2c300e 100644
--- a/src/network/networkd-netdev-vxlan.c
+++ b/src/network/networkd-netdev-vxlan.c
@@ -24,6 +24,8 @@
#include "sd-netlink.h"
#include "conf-parser.h"
+#include "alloc-util.h"
+#include "parse-util.h"
#include "missing.h"
#include "networkd-link.h"
#include "networkd-netdev-vxlan.h"
@@ -110,6 +112,21 @@ static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netli
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m");
+ r = sd_netlink_message_append_u16(m, IFLA_VXLAN_PORT, htobe16(v->dest_port));
+ if (r < 0)
+ return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT attribute: %m");
+
+ if (v->port_range.low || v->port_range.high) {
+ struct ifla_vxlan_port_range port_range;
+
+ port_range.low = htobe16(v->port_range.low);
+ port_range.high = htobe16(v->port_range.high);
+
+ r = sd_netlink_message_append_data(m, IFLA_VXLAN_PORT_RANGE, &port_range, sizeof(port_range));
+ if (r < 0)
+ return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT_RANGE attribute: %m");
+ }
+
if (v->group_policy) {
r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP);
if (r < 0)
@@ -155,6 +172,89 @@ int config_parse_vxlan_group_address(const char *unit,
return 0;
}
+int config_parse_port_range(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) {
+ _cleanup_free_ char *word = NULL;
+ VxLan *v = userdata;
+ unsigned low, high;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = extract_first_word(&rvalue, &word, NULL, 0);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract VXLAN port range, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (r == 0)
+ return 0;
+
+ r = parse_range(word, &low, &high);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN port range '%s'", word);
+ return 0;
+ }
+
+ if (low <= 0 || low > 65535 || high <= 0 || high > 65535) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse VXLAN port range '%s'. Port should be greater than 0 and less than 65535.", word);
+ return 0;
+ }
+
+ if (high < low) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse VXLAN port range '%s'. Port range %u .. %u not valid", word, low, high);
+ return 0;
+ }
+
+ v->port_range.low = low;
+ v->port_range.high = high;
+
+ return 0;
+}
+
+int config_parse_destination_port(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) {
+ VxLan *v = userdata;
+ uint16_t port;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = safe_atou16(rvalue, &port);
+ if (r < 0 || port <= 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN destination port '%s'.", rvalue);
+ return 0;
+ }
+
+ v->dest_port = port;
+
+ return 0;
+}
+
static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
VxLan *v = VXLAN(netdev);
diff --git a/src/network/networkd-netdev-vxlan.h b/src/network/networkd-netdev-vxlan.h
index 16977ea6a9..00142968ae 100644
--- a/src/network/networkd-netdev-vxlan.h
+++ b/src/network/networkd-netdev-vxlan.h
@@ -40,6 +40,8 @@ struct VxLan {
unsigned ttl;
unsigned max_fdb;
+ uint16_t dest_port;
+
usec_t fdb_ageing;
bool learning;
@@ -51,6 +53,8 @@ struct VxLan {
bool udp6zerocsumtx;
bool udp6zerocsumrx;
bool group_policy;
+
+ struct ifla_vxlan_port_range port_range;
};
extern const NetDevVTable vxlan_vtable;
@@ -65,3 +69,24 @@ int config_parse_vxlan_group_address(const char *unit,
const char *rvalue,
void *data,
void *userdata);
+int config_parse_port_range(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);
+
+int config_parse_destination_port(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);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-07 21:58:37 +0000