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Merge pull request #5534 from ssahani/vxlan-label
networkd: vxlan support setting IPv6 flow label
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commit
510cb1ce89
@ -360,7 +360,7 @@ AC_CHECK_DECLS([IFLA_INET6_ADDR_GEN_MODE,
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IFLA_PHYS_PORT_ID,
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IFLA_BOND_AD_INFO,
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IFLA_VLAN_PROTOCOL,
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IFLA_VXLAN_REMCSUM_NOPARTIAL,
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IFLA_VXLAN_GPE,
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IFLA_IPTUN_ENCAP_DPORT,
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IFLA_GRE_ENCAP_DPORT,
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IFLA_BRIDGE_VLAN_INFO,
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@ -604,6 +604,14 @@
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ports, and allows overriding via configuration.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>FlowLabel=</varname></term>
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<listitem>
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<para>Specifies the flow label to use in outgoing packets.
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The valid range is 0-1048575.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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@ -726,7 +726,7 @@ struct btrfs_ioctl_quota_ctl_args {
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#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
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#endif
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#if !HAVE_DECL_IFLA_VXLAN_REMCSUM_NOPARTIAL
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#if !HAVE_DECL_IFLA_VXLAN_GPE
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#define IFLA_VXLAN_UNSPEC 0
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#define IFLA_VXLAN_ID 1
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#define IFLA_VXLAN_GROUP 2
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@ -752,7 +752,11 @@ struct btrfs_ioctl_quota_ctl_args {
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#define IFLA_VXLAN_REMCSUM_RX 22
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#define IFLA_VXLAN_GBP 23
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#define IFLA_VXLAN_REMCSUM_NOPARTIAL 24
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#define __IFLA_VXLAN_MAX 25
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#define IFLA_VXLAN_COLLECT_METADATA 25
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#define IFLA_VXLAN_LABEL 26
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#define IFLA_VXLAN_GPE 27
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#define __IFLA_VXLAN_MAX 28
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#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
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#endif
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@ -170,6 +170,9 @@ static const NLType rtnl_link_info_data_vxlan_types[] = {
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[IFLA_VXLAN_REMCSUM_RX] = { .type = NETLINK_TYPE_U8 },
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[IFLA_VXLAN_GBP] = { .type = NETLINK_TYPE_FLAG },
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[IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NETLINK_TYPE_FLAG },
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[IFLA_VXLAN_COLLECT_METADATA] = { .type = NETLINK_TYPE_U8 },
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[IFLA_VXLAN_LABEL] = { .type = NETLINK_TYPE_U32 },
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[IFLA_VXLAN_GPE] = { .type = NETLINK_TYPE_FLAG },
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};
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static const NLType rtnl_bond_arp_target_types[] = {
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@ -78,6 +78,7 @@ VXLAN.GroupPolicyExtension, config_parse_bool, 0,
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VXLAN.MaximumFDBEntries, config_parse_unsigned, 0, offsetof(VxLan, max_fdb)
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VXLAN.PortRange, config_parse_port_range, 0, 0
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VXLAN.DestinationPort, config_parse_destination_port, 0, offsetof(VxLan, dest_port)
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VXLAN.FlowLabel, config_parse_flow_label, 0, 0
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Tun.OneQueue, config_parse_bool, 0, offsetof(TunTap, one_queue)
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Tun.MultiQueue, config_parse_bool, 0, offsetof(TunTap, multi_queue)
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Tun.PacketInfo, config_parse_bool, 0, offsetof(TunTap, packet_info)
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@ -157,6 +157,10 @@ static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netli
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT_RANGE attribute: %m");
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}
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r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LABEL, htobe32(v->flow_label));
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LABEL attribute: %m");
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if (v->group_policy) {
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r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP);
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if (r < 0)
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@ -297,6 +301,42 @@ int config_parse_destination_port(const char *unit,
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return 0;
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}
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int config_parse_flow_label(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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VxLan *v = userdata;
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unsigned f;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = safe_atou(rvalue, &f);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN flow label '%s'.", rvalue);
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return 0;
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}
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if (f & ~VXLAN_FLOW_LABEL_MAX_MASK) {
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log_syntax(unit, LOG_ERR, filename, line, r,
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"VXLAN flow label '%s' not valid. Flow label range should be [0-1048575].", rvalue);
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return 0;
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}
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v->flow_label = f;
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return 0;
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}
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static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
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VxLan *v = VXLAN(netdev);
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@ -25,6 +25,7 @@ typedef struct VxLan VxLan;
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#include "netdev/netdev.h"
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#define VXLAN_VID_MAX (1u << 24) - 1
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#define VXLAN_FLOW_LABEL_MAX_MASK 0xFFFFFU
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struct VxLan {
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NetDev meta;
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@ -40,6 +41,7 @@ struct VxLan {
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unsigned tos;
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unsigned ttl;
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unsigned max_fdb;
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unsigned flow_label;
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uint16_t dest_port;
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@ -94,3 +96,14 @@ int config_parse_destination_port(const char *unit,
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const char *rvalue,
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void *data,
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void *userdata);
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int config_parse_flow_label(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata);
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