diff options
| -rw-r--r-- | man/systemd.network.xml | 9 | ||||
| -rw-r--r-- | src/network/networkd-network-gperf.gperf | 1 | ||||
| -rw-r--r-- | src/network/networkd-route.c | 58 | ||||
| -rw-r--r-- | src/network/networkd-route.h | 2 |
4 files changed, 70 insertions, 0 deletions
diff --git a/man/systemd.network.xml b/man/systemd.network.xml index b4fb051be3..2d9596dfe4 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -1720,6 +1720,15 @@ allow my_server_t localnet_peer_t:peer recv;</programlisting> </varlistentry> <varlistentry> + <term><varname>TCPRetransmissionTimeOutSec=</varname></term> + <listitem> + <para>Specifies the TCP Retransmission Time Out for the route. Takes time values in seconds. + This value specifies the timeout of an alive TCP connection, when RTO retransmissions remain unacknowledged. + When unset, the kernel's default will be used.</para> + </listitem> + </varlistentry> + + <varlistentry> <term><varname>MultiPathRoute=<replaceable>address</replaceable>[@<replaceable>name</replaceable>] [<replaceable>weight</replaceable>]</varname></term> <listitem> <para>Configures multipath route. Multipath routing is the technique of using multiple diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf index 0f87ce24bb..d0214d131a 100644 --- a/src/network/networkd-network-gperf.gperf +++ b/src/network/networkd-network-gperf.gperf @@ -196,6 +196,7 @@ Route.GatewayOnlink, config_parse_route_boolean, Route.IPv6Preference, config_parse_ipv6_route_preference, 0, 0 Route.Protocol, config_parse_route_protocol, 0, 0 Route.Type, config_parse_route_type, 0, 0 +Route.TCPRetransmissionTimeOutSec, config_parse_route_tcp_rto, 0, 0 Route.InitialCongestionWindow, config_parse_route_tcp_window, 0, 0 Route.InitialAdvertisedReceiveWindow, config_parse_route_tcp_window, 0, 0 Route.TCPAdvertisedMaximumSegmentSize, config_parse_tcp_advmss, 0, 0 diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c index 5bb2388b41..a13ec81806 100644 --- a/src/network/networkd-route.c +++ b/src/network/networkd-route.c @@ -1247,6 +1247,12 @@ static int route_configure(const Route *route, uint32_t lifetime_sec, Link *link return r; } + if (route->tcp_rto_usec > 0) { + r = sd_netlink_message_append_u32(m, RTAX_RTO_MIN, route->tcp_rto_usec / USEC_PER_MSEC); + if (r < 0) + return r; + } + r = sd_netlink_message_close_container(m); if (r < 0) return r; @@ -2752,6 +2758,58 @@ int config_parse_route_mtu( return 0; } +int config_parse_route_tcp_rto( + 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) { + + Network *network = userdata; + _cleanup_(route_free_or_set_invalidp) Route *n = NULL; + usec_t usec; + int r; + + assert(filename); + assert(section); + assert(lvalue); + assert(rvalue); + assert(data); + + r = route_new_static(network, filename, section_line, &n); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to allocate route, ignoring assignment: %m"); + return 0; + } + + r = parse_sec(rvalue, &usec); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to parse route TCP retransmission time out (RTO) sec '%s', ignoring: %m", rvalue); + return 0; + } + + if (usec != USEC_INFINITY && + DIV_ROUND_UP(usec, USEC_PER_SEC) > UINT32_MAX) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Route TCP retransmission time out (RTO) = must be in the range 0...%"PRIu32"ms, ignoring: %s", UINT32_MAX, rvalue); + return 0; + } + + n->tcp_rto_usec = usec; + + TAKE_PTR(n); + return 0; +} + int config_parse_multipath_route( const char *unit, const char *filename, diff --git a/src/network/networkd-route.h b/src/network/networkd-route.h index 0ecabc2647..f64d081fe2 100644 --- a/src/network/networkd-route.h +++ b/src/network/networkd-route.h @@ -56,6 +56,7 @@ struct Route { unsigned flags; int gateway_onlink; /* Only used in conf parser and route_section_verify(). */ uint32_t nexthop_id; + usec_t tcp_rto_usec; bool scope_set:1; bool table_set:1; @@ -125,6 +126,7 @@ CONFIG_PARSER_PROTOTYPE(config_parse_route_protocol); CONFIG_PARSER_PROTOTYPE(config_parse_route_type); CONFIG_PARSER_PROTOTYPE(config_parse_route_tcp_window); CONFIG_PARSER_PROTOTYPE(config_parse_tcp_window); +CONFIG_PARSER_PROTOTYPE(config_parse_route_tcp_rto); CONFIG_PARSER_PROTOTYPE(config_parse_route_mtu); CONFIG_PARSER_PROTOTYPE(config_parse_multipath_route); CONFIG_PARSER_PROTOTYPE(config_parse_tcp_congestion); |