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Merge pull request #5534 from ssahani/vxlan-label

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networkd: vxlan support setting IPv6 flow label
This commit is contained in:
Lennart Poettering 2017-03-31 11:30:33 +02:00 committed by GitHub
commit 510cb1ce89
7 changed files with 72 additions and 3 deletions
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2
configure.ac
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@ -360,7 +360,7 @@ AC_CHECK_DECLS([IFLA_INET6_ADDR_GEN_MODE,
IFLA_PHYS_PORT_ID,
IFLA_BOND_AD_INFO,
IFLA_VLAN_PROTOCOL,
IFLA_VXLAN_REMCSUM_NOPARTIAL,
IFLA_VXLAN_GPE,
IFLA_IPTUN_ENCAP_DPORT,
IFLA_GRE_ENCAP_DPORT,
IFLA_BRIDGE_VLAN_INFO,

8
man/systemd.netdev.xml
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@ -604,6 +604,14 @@
ports, and allows overriding via configuration.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>FlowLabel=</varname></term>
<listitem>
<para>Specifies the flow label to use in outgoing packets.
The valid range is 0-1048575.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>

8
src/basic/missing.h
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@ -726,7 +726,7 @@ struct btrfs_ioctl_quota_ctl_args {
#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
#endif
#if !HAVE_DECL_IFLA_VXLAN_REMCSUM_NOPARTIAL
#if !HAVE_DECL_IFLA_VXLAN_GPE
#define IFLA_VXLAN_UNSPEC 0
#define IFLA_VXLAN_ID 1
#define IFLA_VXLAN_GROUP 2
@ -752,7 +752,11 @@ struct btrfs_ioctl_quota_ctl_args {
#define IFLA_VXLAN_REMCSUM_RX 22
#define IFLA_VXLAN_GBP 23
#define IFLA_VXLAN_REMCSUM_NOPARTIAL 24
#define __IFLA_VXLAN_MAX 25
#define IFLA_VXLAN_COLLECT_METADATA 25
#define IFLA_VXLAN_LABEL 26
#define IFLA_VXLAN_GPE 27
#define __IFLA_VXLAN_MAX 28
#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
#endif

3
src/libsystemd/sd-netlink/netlink-types.c
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@ -170,6 +170,9 @@ static const NLType rtnl_link_info_data_vxlan_types[] = {
[IFLA_VXLAN_REMCSUM_RX] = { .type = NETLINK_TYPE_U8 },
[IFLA_VXLAN_GBP] = { .type = NETLINK_TYPE_FLAG },
[IFLA_VXLAN_REMCSUM_NOPARTIAL] = { .type = NETLINK_TYPE_FLAG },
[IFLA_VXLAN_COLLECT_METADATA] = { .type = NETLINK_TYPE_U8 },
[IFLA_VXLAN_LABEL] = { .type = NETLINK_TYPE_U32 },
[IFLA_VXLAN_GPE] = { .type = NETLINK_TYPE_FLAG },
};
static const NLType rtnl_bond_arp_target_types[] = {

1
src/network/netdev/netdev-gperf.gperf
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@ -78,6 +78,7 @@ VXLAN.GroupPolicyExtension, config_parse_bool, 0,
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)
VXLAN.FlowLabel, config_parse_flow_label, 0, 0
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)

40
src/network/netdev/vxlan.c
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@ -157,6 +157,10 @@ static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netli
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT_RANGE attribute: %m");
}
r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LABEL, htobe32(v->flow_label));
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LABEL attribute: %m");
if (v->group_policy) {
r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP);
if (r < 0)
@ -297,6 +301,42 @@ int config_parse_destination_port(const char *unit,
return 0;
}
int config_parse_flow_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) {
VxLan *v = userdata;
unsigned f;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
r = safe_atou(rvalue, &f);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN flow label '%s'.", rvalue);
return 0;
}
if (f & ~VXLAN_FLOW_LABEL_MAX_MASK) {
log_syntax(unit, LOG_ERR, filename, line, r,
"VXLAN flow label '%s' not valid. Flow label range should be [0-1048575].", rvalue);
return 0;
}
v->flow_label = f;
return 0;
}
static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
VxLan *v = VXLAN(netdev);

13
src/network/netdev/vxlan.h
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@ -25,6 +25,7 @@ typedef struct VxLan VxLan;
#include "netdev/netdev.h"
#define VXLAN_VID_MAX (1u << 24) - 1
#define VXLAN_FLOW_LABEL_MAX_MASK 0xFFFFFU
struct VxLan {
NetDev meta;
@ -40,6 +41,7 @@ struct VxLan {
unsigned tos;
unsigned ttl;
unsigned max_fdb;
unsigned flow_label;
uint16_t dest_port;
@ -94,3 +96,14 @@ int config_parse_destination_port(const char *unit,
const char *rvalue,
void *data,
void *userdata);
int config_parse_flow_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);