diff options
| author |   Jeff Shaw <jeffrey.b.shaw@intel.com> | 2016-08-18 15:40:04 -0400 |
|---|---|---|
| committer | Jeff Shaw <jeffrey.b.shaw@intel.com> | 2016-08-18 15:40:04 -0400 |
| commit | 592a739953f13d2fe5ca5aec97c0a8ff8b6984be (patch) | |
| tree | 6e2bd2ee323485a0af1ed73c1bb170d5eb8367a7 /router | |
| parent | c4da7ab60ca11bc8d2cf683a68fa56483da01243 (diff) | |
[router] Support UDP protocol.
Register an IP protocol handler for UDP. When a UDP packet
arrives on a tapped interface configured for UDP, the packet
is injected on the input device's respective tap.
commit f560a490c already adds support for directing multicast
packets to the tap device.
Change-Id: I2a28a123d9bf1470f87986e66f34e76a99e63f48
Signed-off-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Diffstat (limited to 'router')
| -rw-r--r-- | router/router/router.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/router/router/router.c b/router/router/router.c index ee23a3d..741f34c 100644 --- a/router/router/router.c +++ b/router/router/router.c @@ -64,6 +64,7 @@ enum { PROTO_IGMP4, PROTO_OSPF2, PROTO_TCP, + PROTO_UDP, PROTO_N_TOTAL, }; @@ -73,6 +74,7 @@ enum { PROTO_BIT_IGMP4 = 1 << PROTO_IGMP4, PROTO_BIT_OSPF2 = 1 << PROTO_OSPF2, PROTO_BIT_TCP = 1 << PROTO_TCP, + PROTO_BIT_UDP = 1 << PROTO_UDP, }; static char *proto_strings[PROTO_N_TOTAL] = { @@ -81,6 +83,7 @@ static char *proto_strings[PROTO_N_TOTAL] = { [PROTO_IGMP4] = "igmp4", [PROTO_OSPF2] = "ospf2", [PROTO_TCP] = "tcp", + [PROTO_UDP] = "udp", }; static inline u32 parse_protos(char *proto_string) @@ -200,6 +203,8 @@ tap_inject_func(vlib_main_t *m, vlib_node_runtime_t *node, vlib_frame_t *f, iphdr = vlib_buffer_get_current(b0); if (iphdr->protocol == IP_PROTOCOL_TCP) proto_bit = PROTO_BIT_TCP; + else if (iphdr->protocol == IP_PROTOCOL_UDP) + proto_bit = PROTO_BIT_UDP; else if (iphdr->protocol == IP_PROTOCOL_OSPF) proto_bit = PROTO_BIT_OSPF2; else if (iphdr->protocol == IP_PROTOCOL_IGMP) @@ -584,6 +589,15 @@ tap_inject(vlib_main_t *m, unformat_input_t *input, vlib_cli_command_t *cmd) return clib_error_return(0, "tcp requires arp and icmp4"); + if (protos & PROTO_BIT_UDP) { + /* Require arp, icmp4, and igmp4 for udp. */ + if (!(protos & PROTO_BIT_ARP) || + !(protos & PROTO_BIT_ICMP4) || + !(protos & PROTO_BIT_IGMP4)) + return clib_error_return(0, + "udp requires arp, icmp4, and igmp4"); + } + err = do_tap_connect(m, name, iface, &tap); if (err) { if (tap != ~0) @@ -627,6 +641,10 @@ tap_inject(vlib_main_t *m, unformat_input_t *input, vlib_cli_command_t *cmd) ip4_register_protocol(IP_PROTOCOL_TCP, tap_inject_classified_node.index); + if (protos & PROTO_BIT_UDP) + ip4_register_protocol(IP_PROTOCOL_UDP, + tap_inject_classified_node.index); + /* Find sw_if_index of tap associated with data plane interface. */ rm.iface_to_tap[iface] = tap; rm.iface_to_protos[iface] = protos; |