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-rw-r--r--src/network/networkd-netdev-gperf.gperf1
-rw-r--r--src/network/networkd-netdev-tunnel.c113
-rw-r--r--src/network/networkd-netdev-tunnel.h25
-rw-r--r--src/network/networkd-netdev.c2
-rw-r--r--src/network/networkd-netdev.h2
-rw-r--r--src/network/networkd-network.c4
6 files changed, 144 insertions, 3 deletions
diff --git a/src/network/networkd-netdev-gperf.gperf b/src/network/networkd-netdev-gperf.gperf
index cb741b470d..963c47c3e5 100644
--- a/src/network/networkd-netdev-gperf.gperf
+++ b/src/network/networkd-netdev-gperf.gperf
@@ -35,6 +35,7 @@ Tunnel.Remote, config_parse_tunnel_address, 0,
Tunnel.TOS, config_parse_unsigned, 0, offsetof(Tunnel, tos)
Tunnel.TTL, config_parse_unsigned, 0, offsetof(Tunnel, ttl)
Tunnel.DiscoverPathMTU, config_parse_bool, 0, offsetof(Tunnel, pmtudisc)
+Tunnel.Mode, config_parse_ip6tnl_mode, 0, offsetof(Tunnel, ip6tnl_mode)
Peer.Name, config_parse_ifname, 0, offsetof(Veth, ifname_peer)
Peer.MACAddress, config_parse_hwaddr, 0, offsetof(Veth, mac_peer)
VXLAN.Id, config_parse_uint64, 0, offsetof(VxLan, id)
diff --git a/src/network/networkd-netdev-tunnel.c b/src/network/networkd-netdev-tunnel.c
index fde08fb1e6..f439bf91b5 100644
--- a/src/network/networkd-netdev-tunnel.c
+++ b/src/network/networkd-netdev-tunnel.c
@@ -3,7 +3,7 @@
/***
This file is part of systemd.
- Copyright 2014 Susant Sahani <susant@redhat.com>
+ Copyright 2014 Susant Sahani
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
@@ -24,6 +24,7 @@
#include <net/if.h>
#include <linux/ip.h>
#include <linux/if_tunnel.h>
+#include <linux/ip6_tunnel.h>
#include "sd-rtnl.h"
#include "networkd-netdev-tunnel.h"
@@ -33,6 +34,17 @@
#include "missing.h"
#include "conf-parser.h"
+#define DEFAULT_TNL_HOP_LIMIT 64
+
+static const char* const ip6tnl_mode_table[_NETDEV_IP6_TNL_MODE_MAX] = {
+ [NETDEV_IP6_TNL_MODE_IP6IP6] = "ip6ip6",
+ [NETDEV_IP6_TNL_MODE_IPIP6] = "ip4ipv6",
+ [NETDEV_IP6_TNL_MODE_ANYIP6] = "any",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(ip6tnl_mode, Ip6TnlMode);
+DEFINE_CONFIG_PARSE_ENUM(config_parse_ip6tnl_mode, ip6tnl_mode, Ip6TnlMode, "Failed to parse ip6 tunnel Mode");
+
static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
Tunnel *t = IPIP(netdev);
int r;
@@ -243,6 +255,73 @@ static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_me
return r;
}
+static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
+ Tunnel *t = IP6TNL(netdev);
+ uint8_t proto;
+ int r;
+
+ assert(netdev);
+ assert(link);
+ assert(m);
+ assert(t);
+ assert(t->family == AF_INET6);
+
+ r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_IPTUN_LINK attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_LOCAL, &t->local.in6);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_IPTUN_LOCAL attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_append_in6_addr(m, IFLA_IPTUN_REMOTE, &t->remote.in6);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_IPTUN_REMOTE attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TTL, t->ttl);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_IPTUN_TTL attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ switch (t->ip6tnl_mode) {
+ case NETDEV_IP6_TNL_MODE_IP6IP6:
+ proto = IPPROTO_IPV6;
+ break;
+ case NETDEV_IP6_TNL_MODE_IPIP6:
+ proto = IPPROTO_IPIP;
+ break;
+ case NETDEV_IP6_TNL_MODE_ANYIP6:
+ default:
+ proto = 0;
+ break;
+ }
+
+ r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_PROTO, proto);
+ if (r < 0) {
+ log_netdev_error(netdev,
+ "Could not append IFLA_IPTUN_MODE attribute: %s",
+ strerror(-r));
+ return r;
+ }
+
+ return r;
+}
+
static int netdev_tunnel_verify(NetDev *netdev, const char *filename) {
Tunnel *t = NULL;
@@ -265,6 +344,9 @@ static int netdev_tunnel_verify(NetDev *netdev, const char *filename) {
case NETDEV_KIND_VTI:
t = VTI(netdev);
break;
+ case NETDEV_KIND_IP6TNL:
+ t = IP6TNL(netdev);
+ break;
default:
assert_not_reached("Invalid tunnel kind");
}
@@ -276,11 +358,18 @@ static int netdev_tunnel_verify(NetDev *netdev, const char *filename) {
return -EINVAL;
}
- if (t->family != AF_INET) {
+ if (t->family != AF_INET && t->family != AF_INET6) {
log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename);
return -EINVAL;
}
+ if (netdev->kind == NETDEV_KIND_IP6TNL) {
+ if (t->ip6tnl_mode == _NETDEV_IP6_TNL_MODE_INVALID) {
+ log_warning("IP6 Tunnel without mode configured in %s. Ignoring", filename);
+ return -EINVAL;
+ }
+ }
+
return 0;
}
@@ -362,6 +451,17 @@ static void gre_init(NetDev *n) {
t->pmtudisc = true;
}
+static void ip6tnl_init(NetDev *n) {
+ Tunnel *t = IP6TNL(n);
+
+ assert(n);
+ assert(t);
+
+ t->ttl = DEFAULT_TNL_HOP_LIMIT;
+ t->encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
+ t->ip6tnl_mode = _NETDEV_IP6_TNL_MODE_INVALID;
+}
+
const NetDevVTable ipip_vtable = {
.object_size = sizeof(Tunnel),
.init = ipip_init,
@@ -406,3 +506,12 @@ const NetDevVTable gretap_vtable = {
.create_type = NETDEV_CREATE_STACKED,
.config_verify = netdev_tunnel_verify,
};
+
+const NetDevVTable ip6tnl_vtable = {
+ .object_size = sizeof(Tunnel),
+ .init = ip6tnl_init,
+ .sections = "Match\0NetDev\0Tunnel\0",
+ .fill_message_create = netdev_ip6tnl_fill_message_create,
+ .create_type = NETDEV_CREATE_STACKED,
+ .config_verify = netdev_tunnel_verify,
+};
diff --git a/src/network/networkd-netdev-tunnel.h b/src/network/networkd-netdev-tunnel.h
index b6f6c9df76..1687f9e6ad 100644
--- a/src/network/networkd-netdev-tunnel.h
+++ b/src/network/networkd-netdev-tunnel.h
@@ -25,15 +25,30 @@ typedef struct Tunnel Tunnel;
#include "networkd-netdev.h"
+typedef enum Ip6TnlMode {
+ NETDEV_IP6_TNL_MODE_IP6IP6,
+ NETDEV_IP6_TNL_MODE_IPIP6,
+ NETDEV_IP6_TNL_MODE_ANYIP6,
+ _NETDEV_IP6_TNL_MODE_MAX,
+ _NETDEV_IP6_TNL_MODE_INVALID = -1,
+} Ip6TnlMode;
+
struct Tunnel {
NetDev meta;
+ uint8_t encap_limit;
+
int family;
unsigned ttl;
unsigned tos;
+ unsigned flags;
+
union in_addr_union local;
union in_addr_union remote;
+
+ Ip6TnlMode ip6tnl_mode;
+
bool pmtudisc;
};
@@ -42,3 +57,13 @@ extern const NetDevVTable sit_vtable;
extern const NetDevVTable vti_vtable;
extern const NetDevVTable gre_vtable;
extern const NetDevVTable gretap_vtable;
+extern const NetDevVTable ip6tnl_vtable;
+
+const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
+Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
+
+int config_parse_ip6tnl_mode(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);
diff --git a/src/network/networkd-netdev.c b/src/network/networkd-netdev.c
index 4e1fb43200..ed857023bc 100644
--- a/src/network/networkd-netdev.c
+++ b/src/network/networkd-netdev.c
@@ -46,6 +46,7 @@ const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
[NETDEV_KIND_DUMMY] = &dummy_vtable,
[NETDEV_KIND_TUN] = &tun_vtable,
[NETDEV_KIND_TAP] = &tap_vtable,
+ [NETDEV_KIND_IP6TNL] = &ip6tnl_vtable,
};
static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
@@ -64,6 +65,7 @@ static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
[NETDEV_KIND_DUMMY] = "dummy",
[NETDEV_KIND_TUN] = "tun",
[NETDEV_KIND_TAP] = "tap",
+ [NETDEV_KIND_IP6TNL] = "ip6tnl",
};
DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind);
diff --git a/src/network/networkd-netdev.h b/src/network/networkd-netdev.h
index 3c447958a6..77d00d4a3b 100644
--- a/src/network/networkd-netdev.h
+++ b/src/network/networkd-netdev.h
@@ -51,6 +51,7 @@ typedef enum NetDevKind {
NETDEV_KIND_SIT,
NETDEV_KIND_VETH,
NETDEV_KIND_VTI,
+ NETDEV_KIND_IP6TNL,
NETDEV_KIND_DUMMY,
NETDEV_KIND_TUN,
NETDEV_KIND_TAP,
@@ -167,6 +168,7 @@ DEFINE_CAST(GRE, Tunnel);
DEFINE_CAST(GRETAP, Tunnel);
DEFINE_CAST(SIT, Tunnel);
DEFINE_CAST(VTI, Tunnel);
+DEFINE_CAST(IP6TNL, Tunnel);
DEFINE_CAST(VETH, Veth);
DEFINE_CAST(DUMMY, Dummy);
DEFINE_CAST(TUN, TunTap);
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 2b555efd5c..0f474d932d 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -453,7 +453,9 @@ int config_parse_tunnel(const char *unit,
netdev->kind != NETDEV_KIND_SIT &&
netdev->kind != NETDEV_KIND_GRE &&
netdev->kind != NETDEV_KIND_GRETAP &&
- netdev->kind != NETDEV_KIND_VTI) {
+ netdev->kind != NETDEV_KIND_VTI &&
+ netdev->kind != NETDEV_KIND_IP6TNL
+ ) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"NetDev is not a tunnel, ignoring assignment: %s", rvalue);
return 0;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-09 21:40:32 +0000