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authorLennart Poettering <lennart@poettering.net>2015-09-01 12:02:10 +0200
committerLennart Poettering <lennart@poettering.net>2015-09-01 12:02:10 +0200
commit3f010fe095a8070299d35f0f9d386672e0cb2af0 (patch)
treecc6167354425877f33988d58340c58138994c19d /src
parent5c69031f9c45beb901f9dc1d8aa6bdadc3943c5a (diff)
parentdae398a8c2a7ee48caf2062eb397b7abab2e1ff2 (diff)
Merge pull request #1066 from ssahani/tunnel
networkd: add support for tunnel encap limit
Diffstat (limited to 'src')
-rw-r--r--src/network/networkd-netdev-gperf.gperf1
-rw-r--r--src/network/networkd-netdev-tunnel.c45
-rw-r--r--src/network/networkd-netdev-tunnel.h6
3 files changed, 52 insertions, 0 deletions
diff --git a/src/network/networkd-netdev-gperf.gperf b/src/network/networkd-netdev-gperf.gperf
index 9469160eba..e0bd0e024a 100644
--- a/src/network/networkd-netdev-gperf.gperf
+++ b/src/network/networkd-netdev-gperf.gperf
@@ -39,6 +39,7 @@ Tunnel.DiscoverPathMTU, config_parse_bool, 0,
Tunnel.Mode, config_parse_ip6tnl_mode, 0, offsetof(Tunnel, ip6tnl_mode)
Tunnel.IPv6FlowLabel, config_parse_ipv6_flowlabel, 0, offsetof(Tunnel, ipv6_flowlabel)
Tunnel.CopyDSCP, config_parse_bool, 0, offsetof(Tunnel, copy_dscp)
+Tunnel.EncapsulationLimit, config_parse_encap_limit, 0, offsetof(Tunnel, encap_limit)
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 265e67b7e3..a906e473b6 100644
--- a/src/network/networkd-netdev-tunnel.c
+++ b/src/network/networkd-netdev-tunnel.c
@@ -284,6 +284,12 @@ static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_netl
if (t->copy_dscp)
t->flags |= IP6_TNL_F_RCV_DSCP_COPY;
+ if (t->encap_limit != IPV6_DEFAULT_TNL_ENCAP_LIMIT) {
+ r = sd_netlink_message_append_u8(m, IFLA_IPTUN_ENCAP_LIMIT, t->encap_limit);
+ if (r < 0)
+ return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_LIMIT attribute: %m");
+ }
+
r = sd_netlink_message_append_u32(m, IFLA_IPTUN_FLAGS, t->flags);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLAGS attribute: %m");
@@ -442,6 +448,45 @@ int config_parse_ipv6_flowlabel(const char* unit,
return 0;
}
+int config_parse_encap_limit(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) {
+ Tunnel *t = userdata;
+ int k = 0;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ if (streq(rvalue, "none"))
+ t->flags |= IP6_TNL_F_IGN_ENCAP_LIMIT;
+ else {
+ r = safe_atoi(rvalue, &k);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse Tunnel Encapsulation Limit option, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (k > 255 || k < 0)
+ log_syntax(unit, LOG_ERR, filename, line, k, "Invalid Tunnel Encapsulation value, ignoring: %d", k);
+ else {
+ t->encap_limit = k;
+ t->flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT;
+ }
+ }
+
+ return 0;
+}
+
static void ipip_init(NetDev *n) {
Tunnel *t = IPIP(n);
diff --git a/src/network/networkd-netdev-tunnel.h b/src/network/networkd-netdev-tunnel.h
index e4fa74aef4..fa7decce18 100644
--- a/src/network/networkd-netdev-tunnel.h
+++ b/src/network/networkd-netdev-tunnel.h
@@ -95,3 +95,9 @@ int config_parse_ipv6_flowlabel(const char *unit, const char *filename,
unsigned section_line, const char *lvalue,
int ltype, const char *rvalue, void *data,
void *userdata);
+
+int config_parse_encap_limit(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);