aboutsummaryrefslogtreecommitdiffstats
path: root/vnet
diff options
context:
space:
mode:
authorWojciech Dec <wdec@cisco.com>2016-11-01 16:44:06 +0100
committerWojciech Dec <wdec@cisco.com>2016-11-14 10:03:40 +0000
commit558d5ebbb4c93286f119658bd7dcbc9642c6974b (patch)
treee77009d9fb0e7f414dc5f032ad93fd689c6e54c7 /vnet
parente30872e6606b4ce6fe1d6ff44be69e590427e45f (diff)
Add support for multi FIB DHCPv6 Proxy
- Support multiple DHCPv6 server targets across VRFs - Allows clients and servers to be in different VRFs - Aligns CLI and VAT for DHCPv6 to DHCPv4 Change-Id: If47756b3a51dc1b9d045a32b7d32ceb80c1746e2 Signed-off-by: Wojciech Dec <wdec@cisco.com>
Diffstat (limited to 'vnet')
-rw-r--r--vnet/vnet/dhcpv6/proxy.h25
-rw-r--r--vnet/vnet/dhcpv6/proxy_error.def1
-rw-r--r--vnet/vnet/dhcpv6/proxy_node.c416
3 files changed, 286 insertions, 156 deletions
diff --git a/vnet/vnet/dhcpv6/proxy.h b/vnet/vnet/dhcpv6/proxy.h
index bc10d7ce17e..9e18913a970 100644
--- a/vnet/vnet/dhcpv6/proxy.h
+++ b/vnet/vnet/dhcpv6/proxy.h
@@ -46,22 +46,24 @@ typedef union {
} dhcpv6_vss_info;
typedef struct {
- /* server to which we we relay. $$$ vector / pool someday */
- ip6_address_t dhcpv6_server;
+ ip6_address_t dhcp6_server;
+ ip6_address_t dhcp6_src_address;
+ u32 insert_vss;
+ u32 server_fib6_index;
+ u32 valid;
+} dhcpv6_server_t;
- /* FIB index */
- u32 server_fib_index;
+typedef struct {
+ /* Pool of DHCP servers */
+ dhcpv6_server_t * dhcp6_servers;
- /* source address to paste into relayed pkts */
- ip6_address_t dhcpv6_src_address;
+ /* Pool of selected DHCP server. Zero is the default server */
+ u32 * dhcp6_server_index_by_rx_fib_index;
/* all DHCP servers address */
ip6_address_t all_dhcpv6_server_address;
ip6_address_t all_dhcpv6_server_relay_agent_address;
- /* true if the relay should insert option 82 */
- int insert_option;
-
/* to drop pkts in server-to-client direction */
u32 error_drop_node_index;
@@ -85,4 +87,9 @@ int dhcpv6_proxy_set_vss(u32 tbl_id,
u32 fib_id,
int is_del);
+int dhcpv6_proxy_set_server_2 (ip6_address_t *addr, ip6_address_t *src_address,
+ u32 rx_fib_id,
+ u32 server_fib_id,
+ int insert_vss, int is_del);
+
#endif /* included_dhcpv6_proxy_h */
diff --git a/vnet/vnet/dhcpv6/proxy_error.def b/vnet/vnet/dhcpv6/proxy_error.def
index 062e97aa4c2..55fa731766c 100644
--- a/vnet/vnet/dhcpv6/proxy_error.def
+++ b/vnet/vnet/dhcpv6/proxy_error.def
@@ -26,3 +26,4 @@ dhcpv6_proxy_error (NO_CIRCUIT_ID_OPTION, "DHCPv6 reply packets without circuit
dhcpv6_proxy_error (NO_RELAY_MESSAGE_OPTION, "DHCPv6 reply packets without relay message option")
dhcpv6_proxy_error (BAD_SVR_FIB_OR_ADDRESS, "DHCPv6 packets not from DHCPv6 server or server FIB.")
dhcpv6_proxy_error (PKT_TOO_BIG, "DHCPv6 packets which are too big.")
+dhcpv6_proxy_error (WRONG_INTERFACE_ID_OPTION, "DHCPv6 reply to invalid interface.")
diff --git a/vnet/vnet/dhcpv6/proxy_node.c b/vnet/vnet/dhcpv6/proxy_node.c
index e44cd3f8956..40df35cd059 100644
--- a/vnet/vnet/dhcpv6/proxy_node.c
+++ b/vnet/vnet/dhcpv6/proxy_node.c
@@ -30,7 +30,7 @@ static char * dhcpv6_proxy_error_strings[] = {
_ (DROP, "error-drop") \
_ (LOOKUP, "ip6-lookup") \
_ (SEND_TO_CLIENT, "dhcpv6-proxy-to-client")
-
+
typedef enum {
#define _(s,n) DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_##s,
@@ -41,8 +41,8 @@ typedef enum {
typedef struct {
/* 0 => to server, 1 => to client */
- int which;
- u8 packet_data[64];
+ int which;
+ u8 packet_data[64];
u32 error;
u32 sw_if_index;
u32 original_sw_if_index;
@@ -57,7 +57,7 @@ u8 * format_dhcpv6_proxy_trace (u8 * s, va_list * args)
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
dhcpv6_proxy_trace_t * t = va_arg (*args, dhcpv6_proxy_trace_t *);
-
+
if (t->which == 0)
s = format (s, "DHCPV6 proxy: sent to server %U",
format_ip6_address, &t->packet_data, sizeof (ip6_address_t));
@@ -69,7 +69,7 @@ u8 * format_dhcpv6_proxy_trace (u8 * s, va_list * args)
s = format (s, " original_sw_if_index: %d, sw_if_index: %d\n",
t->original_sw_if_index, t->sw_if_index);
-
+
return s;
}
@@ -142,16 +142,19 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
- u32 pkts_to_server=0, pkts_to_client=0;
+ u32 pkts_to_server=0, pkts_to_client=0, pkts_no_server=0;
u32 pkts_no_interface_address=0, pkts_no_exceeding_max_hop=0;
u32 pkts_no_src_address=0;
u32 pkts_wrong_msg_type=0;
u32 pkts_too_big=0;
ip6_main_t * im = &ip6_main;
- u32 fib_index=0, fib_id=0;
ip6_fib_t * fib;
ip6_address_t * src;
int bogus_length;
+ dhcpv6_server_t * server;
+ u32 rx_fib_idx = 0, server_fib_idx = 0;
+ u32 server_idx;
+ u32 fib_id1 = 0;
next_index = node->cached_next_index;
@@ -166,7 +169,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
{
vnet_main_t *vnm = vnet_get_main();
u32 sw_if_index = 0;
- u32 original_sw_if_index = 0;
+ u32 rx_sw_if_index = 0;
vnet_sw_interface_t *swif;
u32 bi0;
vlib_buffer_t * b0;
@@ -176,7 +179,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
ip6_address_t _ia0, *ia0=&_ia0;
u32 next0;
u32 error0 = (u32) ~0;
- dhcpv6_option_t *fwd_opt;
+ dhcpv6_option_t *fwd_opt;
dhcpv6_relay_hdr_t *r1;
u16 len;
dhcpv6_int_id_t *id1;
@@ -185,13 +188,12 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
ethernet_header_t * e_h0;
u8 client_src_mac[6];
vlib_buffer_free_list_t *fl;
-
+
uword *p_vss;
u32 oui1=0;
- u32 fib_id1;
dhcpv6_vss_info *vss;
-
- fib_id1 = 0;
+
+
bi0 = from[0];
to_next[0] = bi0;
from += 1;
@@ -200,14 +202,10 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
-
- h0 = vlib_buffer_get_current (b0);
- /* Send to DHCPV6 server via the configured FIB */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] =
- dpm->server_fib_index;
+ h0 = vlib_buffer_get_current (b0);
- /*
+ /*
* udp_local hands us the DHCPV6 header.
*/
u0 = (void *)h0 -(sizeof(*u0));
@@ -240,8 +238,32 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
error0 = DHCPV6_PROXY_ERROR_WRONG_MESSAGE_TYPE;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
goto do_trace;
-
+
}
+
+ /* Send to DHCPV6 server via the configured FIB */
+ rx_sw_if_index = sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX];
+ rx_fib_idx = im->fib_index_by_sw_if_index [rx_sw_if_index];
+ server_idx = dpm->dhcp6_server_index_by_rx_fib_index[rx_fib_idx];
+
+ if (PREDICT_FALSE (pool_is_free_index (dpm->dhcp6_servers,
+ server_idx)))
+ {
+ no_server:
+ error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_server++;
+ goto do_trace;
+ }
+
+ server = pool_elt_at_index(dpm->dhcp6_servers, server_idx);
+ if (server->valid == 0)
+ goto no_server;
+
+ server_fib_idx = server->server_fib6_index;
+ vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx;
+
+
/* relay-option header pointer */
vlib_buffer_advance(b0, -(sizeof(*fwd_opt)));
fwd_opt = vlib_buffer_get_current(b0);
@@ -273,7 +295,7 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
pkts_no_exceeding_max_hop++;
goto do_trace;
}
-
+
/* If relay-fwd and src address is site or global unicast address */
if (h0->u.msg_type == DHCPV6_MSG_RELAY_FORW &&
@@ -285,17 +307,16 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
r1->link_addr.as_u64[1] = 0;
goto link_address_set;
}
-
+
/* if receiving interface is unnumbered, use receiving interface
* IP address as link address, otherwise use the loopback interface
* IP address as link address.
*/
- original_sw_if_index = sw_if_index =
- vnet_buffer(b0)->sw_if_index[VLIB_RX];
- swif = vnet_get_sw_interface (vnm, sw_if_index);
+
+ swif = vnet_get_sw_interface (vnm, rx_sw_if_index);
if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
sw_if_index = swif->unnumbered_sw_if_index;
-
+
ia0 = ip6_interface_first_global_or_site_address(&ip6_main, sw_if_index);
if (ia0 == 0)
{
@@ -304,12 +325,12 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
pkts_no_interface_address++;
goto do_trace;
}
-
+
copy_ip6_address(&r1->link_addr, ia0);
-
- link_address_set:
+
+ link_address_set:
fl = vlib_buffer_get_free_list (vm, b0->free_list_index);
-
+
if ((b0->current_length+sizeof(*id1)+sizeof(*vss1)+sizeof(*cmac))
> fl->n_data_bytes)
{
@@ -322,14 +343,13 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
id1 = (dhcpv6_int_id_t *) (((uword) ip1) + b0->current_length);
b0->current_length += (sizeof (*id1));
- fib_index = im->fib_index_by_sw_if_index
- [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
- fib = ip6_fib_get (fib_index);
- fib_id = fib->table_id;
+ fib = ip6_fib_get (rx_fib_idx);
+
+ //TODO: Revisit if hash makes sense here
p_vss = hash_get (dpm->vss_index_by_vrf_id,
- fib_id);
- if (p_vss)
+ fib->table_id);
+ if (p_vss)
{
vss = pool_elt_at_index (dpm->vss, p_vss[0]);
oui1 = vss->vpn_id.oui;
@@ -337,25 +357,25 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
}
id1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_INTERFACE_ID);
- id1->opt.length = clib_host_to_net_u16(sizeof(original_sw_if_index));
- id1->int_idx = clib_host_to_net_u32(original_sw_if_index);
-
+ id1->opt.length = clib_host_to_net_u16(sizeof(rx_sw_if_index));
+ id1->int_idx = clib_host_to_net_u32(rx_sw_if_index);
+
u1->length =0;
if (h0->u.msg_type != DHCPV6_MSG_RELAY_FORW)
{
cmac = (dhcpv6_client_mac_t *) (((uword) ip1) + b0->current_length);
b0->current_length += (sizeof (*cmac));
- cmac->opt.length =clib_host_to_net_u16(sizeof(*cmac) -
+ cmac->opt.length =clib_host_to_net_u16(sizeof(*cmac) -
sizeof(cmac->opt));
cmac->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS);
cmac->link_type = clib_host_to_net_u16(1); // ethernet
clib_memcpy(cmac->data, client_src_mac, 6);
u1->length += sizeof(*cmac);
}
- if (oui1 || fib_id1) {
+ if (server->insert_vss !=0 ) {
vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length);
b0->current_length += (sizeof (*vss1));
- vss1->opt.length =clib_host_to_net_u16(sizeof(*vss1) -
+ vss1->opt.length =clib_host_to_net_u16(sizeof(*vss1) -
sizeof(vss1->opt));
vss1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_VSS);
vss1->data[0] = 1; // type
@@ -378,22 +398,22 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
clib_host_to_net_u16( clib_net_to_host_u16(fwd_opt->length) +
sizeof(*r1) + sizeof(*fwd_opt) +
sizeof(*u1) + sizeof(*id1) + u1->length);
-
+
memset(ip1, 0, sizeof(*ip1));
ip1->ip_version_traffic_class_and_flow_label = 0x60;
ip1->payload_length = u1->length;
ip1->protocol = PROTO_UDP;
ip1->hop_limit = HOP_COUNT_LIMIT;
- src = (dpm->dhcpv6_server.as_u64[0] || dpm->dhcpv6_server.as_u64[1]) ?
- &dpm->dhcpv6_server : &dpm->all_dhcpv6_server_address;
+ src = (server->dhcp6_server.as_u64[0] || server->dhcp6_server.as_u64[1]) ?
+ &server->dhcp6_server : &dpm->all_dhcpv6_server_address;
copy_ip6_address(&ip1->dst_address, src);
-
+
ia0 = ip6_interface_first_global_or_site_address
(&ip6_main, vnet_buffer(b0)->sw_if_index[VLIB_RX]);
- src = (dpm->dhcpv6_src_address.as_u64[0] || dpm->dhcpv6_src_address.as_u64[1]) ?
- &dpm->dhcpv6_src_address : ia0;
+ src = (server->dhcp6_src_address.as_u64[0] || server->dhcp6_src_address.as_u64[1]) ?
+ &server->dhcp6_src_address : ia0;
if (ia0 == 0)
{
error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS;
@@ -401,27 +421,27 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
pkts_no_src_address++;
goto do_trace;
}
-
+
copy_ip6_address (&ip1->src_address, src);
-
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
+
+ u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
&bogus_length);
ASSERT(bogus_length == 0);
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
b0, sizeof (*tr));
tr->which = 0; /* to server */
tr->error = error0;
- tr->original_sw_if_index = original_sw_if_index;
+ tr->original_sw_if_index = rx_sw_if_index;
tr->sw_if_index = sw_if_index;
- if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0)
- copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &dpm->dhcpv6_server);
+ if (DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP == next0)
+ copy_ip6_address((ip6_address_t *)&tr->packet_data[0], &server->dhcp6_server);
}
do_enqueue:
@@ -485,10 +505,11 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
u32 n_left_from, * from;
ethernet_main_t *em = ethernet_get_main (vm);
- dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
- vnet_main_t * vnm = vnet_get_main();
+ dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
+ dhcpv6_server_t * server;
+ vnet_main_t * vnm = vnet_get_main();
int bogus_length;
-
+
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
@@ -515,9 +536,9 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
u16 len = 0;
u8 interface_opt_flag = 0;
u8 relay_msg_opt_flag = 0;
- u32 svr_fib_index, svr_fib_id;
ip6_fib_t * svr_fib;
ip6_main_t * im = &ip6_main;
+ u32 server_fib_idx, svr_fib_id, client_fib_idx, server_idx;
bi0 = from[0];
from += 1;
@@ -534,11 +555,11 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
vlib_node_increment_counter (vm, dhcpv6_proxy_to_client_node.index,
error0, 1);
- f0 = vlib_get_frame_to_node (vm, dpm->error_drop_node_index);
+ f0 = vlib_get_frame_to_node (vm, dm->error_drop_node_index);
to_next0 = vlib_frame_vector_args (f0);
to_next0[0] = bi0;
f0->n_vectors = 1;
- vlib_put_frame_to_node (vm, dpm->error_drop_node_index, f0);
+ vlib_put_frame_to_node (vm, dm->error_drop_node_index, f0);
goto do_trace;
}
/* hop count seems not need to be checked */
@@ -566,6 +587,11 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
interface_opt_flag = 1;
if (clib_net_to_host_u16(o->length) == sizeof(sw_if_index))
sw_if_index = clib_net_to_host_u32(((dhcpv6_int_id_t*)o)->int_idx);
+ if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
+ {
+ error0 = DHCPV6_PROXY_ERROR_WRONG_INTERFACE_ID_OPTION;
+ goto drop_packet;
+ }
}
if (DHCPV6_OPTION_RELAY_MSG == clib_net_to_host_u16(o->option))
{
@@ -593,14 +619,34 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
//Advance buffer to start of encapsulated DHCPv6 message
vlib_buffer_advance (b0, sizeof(*r0));
- svr_fib_index = im->fib_index_by_sw_if_index
+ client_fib_idx = im->fib_index_by_sw_if_index[sw_if_index];
+ if (client_fib_idx < vec_len(dm->dhcp6_server_index_by_rx_fib_index))
+ server_idx = dm->dhcp6_server_index_by_rx_fib_index[client_fib_idx];
+ else
+ server_idx = 0;
+
+ if (PREDICT_FALSE (pool_is_free_index (dm->dhcp6_servers, server_idx)))
+ {
+ error0 = DHCPV6_PROXY_ERROR_WRONG_INTERFACE_ID_OPTION;
+ goto drop_packet;
+ }
+
+ server = pool_elt_at_index (dm->dhcp6_servers, server_idx);
+ if (server->valid == 0)
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
+ goto drop_packet;
+ }
+
+
+ server_fib_idx = im->fib_index_by_sw_if_index
[vnet_buffer(b0)->sw_if_index[VLIB_RX]];
- svr_fib = ip6_fib_get (svr_fib_index);
+ svr_fib = ip6_fib_get (server_fib_idx);
svr_fib_id = svr_fib->table_id;
- if (svr_fib_id != dpm->server_fib_index ||
- ip0->src_address.as_u64[0] != dpm->dhcpv6_server.as_u64[0] ||
- ip0->src_address.as_u64[1] != dpm->dhcpv6_server.as_u64[1])
+ if (svr_fib_id != server->server_fib6_index ||
+ ip0->src_address.as_u64[0] != server->dhcp6_server.as_u64[0] ||
+ ip0->src_address.as_u64[1] != server->dhcp6_server.as_u64[1])
{
//drop packet if not from server with configured address or FIB
error0 = DHCPV6_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
@@ -638,7 +684,7 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
memset(ip1, 0, sizeof(*ip1));
copy_ip6_address(&ip1->dst_address, &client_address);
u1->checksum = 0;
- u1->src_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_server);
+ u1->src_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_server);
u1->dst_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcpv6_to_client);
u1->length = clib_host_to_net_u16 (len + sizeof(udp_header_t));
@@ -650,10 +696,10 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
ip1->hop_limit = HOP_COUNT_LIMIT;
copy_ip6_address(&ip1->src_address, ia0);
- u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
+ u1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, ip1,
&bogus_length);
ASSERT(bogus_length == 0);
-
+
vlib_buffer_advance (b0, -(sizeof(ethernet_header_t)));
si0 = vnet_get_sw_interface (vnm, original_sw_if_index);
if (si0->type == VNET_SW_INTERFACE_TYPE_SUB)
@@ -684,9 +730,9 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
vlib_put_frame_to_node (vm, hi0->output_node_index, f0);
do_trace:
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
- dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
+ dhcpv6_proxy_trace_t *tr = vlib_add_trace (vm, node,
b0, sizeof (*tr));
tr->which = 1; /* to client */
if (ia0)
@@ -719,12 +765,15 @@ clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm)
{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
vlib_node_t * error_drop_node;
+ dhcpv6_server_t * server;
dm->vlib_main = vm;
- dm->vnet_main = vnet_get_main();
+ dm->vnet_main = vnet_get_main();
error_drop_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
dm->error_drop_node_index = error_drop_node->index;
+ dm->vss_index_by_vrf_id = hash_create (0, sizeof (uword));
+
/* RFC says this is the dhcpv6 server address */
dm->all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000);
dm->all_dhcpv6_server_address.as_u64[1] = clib_host_to_net_u64 (0x00010003);
@@ -733,51 +782,97 @@ clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm)
dm->all_dhcpv6_server_relay_agent_address.as_u64[0] = clib_host_to_net_u64 (0xFF02000000000000);
dm->all_dhcpv6_server_relay_agent_address.as_u64[1] = clib_host_to_net_u64 (0x00010002);
- udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_client,
- dhcpv6_proxy_to_client_node.index, 0 /* is_ip4 */);
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_client,
+ dhcpv6_proxy_to_client_node.index, 0 /* is_ip6 */);
- udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_server,
+ udp_register_dst_port (vm, UDP_DST_PORT_dhcpv6_to_server,
dhcpv6_proxy_to_server_node.index, 0 /* is_ip6 */);
+
+ /* Create the default server, don't mark it valid */
+ pool_get (dm->dhcp6_servers, server);
+ memset (server, 0, sizeof (*server));
+
return 0;
}
VLIB_INIT_FUNCTION (dhcpv6_proxy_init);
+/* Old API, manipulates a single server (only) shared by all Rx VRFs */
int dhcpv6_proxy_set_server (ip6_address_t *addr, ip6_address_t *src_address,
u32 fib_id, int insert_vss, int is_del)
{
+ return dhcpv6_proxy_set_server_2 (addr, src_address,
+ 0, fib_id,
+ insert_vss, is_del);
+}
+
+int dhcpv6_proxy_set_server_2 (ip6_address_t *addr, ip6_address_t *src_address,
+ u32 rx_fib_id, u32 server_fib_id,
+ int insert_vss, int is_del)
+{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- ip6_main_t * im = &ip6_main;
- uword * p;
-
-
+ dhcpv6_server_t * server = 0;
+ u32 server_fib_index = 0;
+ u32 rx_fib_index = 0;
+
+ rx_fib_index = ip6_fib_table_find_or_create_and_lock(rx_fib_id);
+ server_fib_index = ip6_fib_table_find_or_create_and_lock(server_fib_id);
+
if (is_del)
+ {
+
+ if (rx_fib_index >= vec_len(dm->dhcp6_server_index_by_rx_fib_index))
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ server_fib_index = dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index];
+
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] = 0;
+ server = pool_elt_at_index (dm->dhcp6_servers, server_fib_index);
+ memset (server, 0, sizeof (*server));
+ pool_put (dm->dhcp6_servers, server);
+ return 0;
+ }
+
+ if (addr->as_u64[0] == 0 &&
+ addr->as_u64[1] == 0 )
+ return VNET_API_ERROR_INVALID_DST_ADDRESS;
+
+ if (src_address->as_u64[0] == 0 &&
+ src_address->as_u64[1] == 0)
+ return VNET_API_ERROR_INVALID_SRC_ADDRESS;
+
+ if (rx_fib_id == 0)
{
- dm->dhcpv6_server.as_u64[0] = 0;
- dm->dhcpv6_server.as_u64[1] = 0;
- dm->server_fib_index = 0;
- dm->dhcpv6_src_address.as_u64[0] = 0;
- dm->dhcpv6_src_address.as_u64[1] = 0;
- dm->insert_option = 0;
- return 0;
+ server = pool_elt_at_index (dm->dhcp6_servers, 0);
+
+ goto initialize_it;
}
- if (addr->as_u64[0] == 0 &&
- addr->as_u64[1] == 0 )
- return VNET_API_ERROR_INVALID_DST_ADDRESS;
-
- if (src_address->as_u64[0] == 0 &&
- src_address->as_u64[1] == 0)
- return VNET_API_ERROR_INVALID_SRC_ADDRESS;
-
- p = hash_get (im->fib_index_by_table_id, fib_id);
- if (p == 0)
- return VNET_API_ERROR_NO_SUCH_FIB;
-
- copy_ip6_address(&dm->dhcpv6_server, addr);
- dm->server_fib_index = p[0];
- copy_ip6_address(&dm->dhcpv6_src_address, src_address);
- dm->insert_option = insert_vss;
+ if (rx_fib_index < vec_len(dm->dhcp6_server_index_by_rx_fib_index))
+ {
+ server_fib_index = dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index];
+ if (server_fib_index != 0)
+ {
+ server = pool_elt_at_index (dm->dhcp6_servers, server_fib_index);
+ goto initialize_it;
+ }
+ }
+
+ /*Allocate a new server*/
+ pool_get (dm->dhcp6_servers, server);
+
+ initialize_it:
+
+ copy_ip6_address(&server->dhcp6_server, addr);
+ copy_ip6_address(&server->dhcp6_src_address, src_address);
+ server->server_fib6_index = server_fib_index;
+ server->valid = 1;
+ server->insert_vss = insert_vss;
+
+ vec_validate (dm->dhcp6_server_index_by_rx_fib_index, rx_fib_index);
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] =
+ server - dm->dhcp6_servers;
+
return 0;
}
@@ -787,23 +882,25 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
vlib_cli_command_t * cmd)
{
ip6_address_t addr, src_addr;
- int set_server = 0, set_src_address = 0, add_opt = 0;
- u32 fib_id = 0;
- int is_del = 0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ int set_server = 0, set_src_address = 0;
+ u32 rx_fib_id = 0, server_fib_id = 0;
+ int is_del = 0, add_vss = 0;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "server %U",
- unformat_ip6_address, &addr))
+ if (unformat (input, "server %U",
+ unformat_ip6_address, &addr))
set_server = 1;
- else if (unformat(input, "src-address %U",
+ else if (unformat(input, "src-address %U",
unformat_ip6_address, &src_addr))
set_src_address =1;
- else if (unformat (input, "fib-id %d", &fib_id))
+ else if (unformat (input, "server-fib-id %d", &server_fib_id))
;
- else if (unformat (input, "add-option")
+ else if (unformat (input, "rx-fib-id %d", &rx_fib_id))
+ ;
+ else if (unformat (input, "add-vss-option")
|| unformat (input, "insert-option"))
- add_opt = 1;
+ add_vss = 1;
else if (unformat (input, "delete") ||
unformat (input, "del"))
is_del = 1;
@@ -815,15 +912,17 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
{
int rv;
- rv = dhcpv6_proxy_set_server (&addr, &src_addr, fib_id,
- add_opt, is_del);
+ rv = dhcpv6_proxy_set_server_2 (&addr, &src_addr, rx_fib_id,
+ server_fib_id, add_vss, is_del);
+
+ //TODO: Complete the errors
switch (rv)
{
case 0:
return 0;
case -1:
- return clib_error_return (0, "FIB id %d does not exist", fib_id);
+ return clib_error_return (0, "FIB id %d does not exist", server_fib_id);
default:
return clib_error_return (0, "BUG: rv %d", rv);
@@ -836,32 +935,40 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
VLIB_CLI_COMMAND (dhcpv6_proxy_set_command, static) = {
.path = "set dhcpv6 proxy",
- .short_help = "set dhcpv6 proxy server <ipv6-addr> fib-id <fib-id> src-address <ipv6-addr>",
+ .short_help = "set dhcpv6 proxy [del] server <ipv6-addr> src-address <ipv6-addr> "
+ "[add-vss-option] [server-fib-id <fib-id>] [rx-fib-id <fib-id>] ",
.function = dhcpv6_proxy_set_command_fn,
};
u8 * format_dhcpv6_proxy_server (u8 * s, va_list * args)
{
dhcpv6_proxy_main_t * dm = va_arg (*args, dhcpv6_proxy_main_t *);
- ip6_fib_t * f;
- u32 fib_id = (u32)~0;
+ dhcpv6_server_t * server = va_arg (*args, dhcpv6_server_t *);
+ u32 rx_fib_index = va_arg (*args, u32);
+ ip6_fib_t * rx_fib, * server_fib;
+ u32 server_fib_id = (u32)~0, rx_fib_id = ~0;
if (dm == 0)
{
- s = format (s, "%=40s%=40s%=14s", "Server Address", "Source Address",
- "Server FIB");
+ s = format (s, "%=40s%=40s%=14s%=14s%=20s", "Server Address", "Source Address",
+ "Server FIB", "RX FIB", "Insert VSS Option");
return s;
}
- f = ip6_fib_get (dm->server_fib_index);
- if (f)
- fib_id = f->table_id;
+ server_fib = ip6_fib_get(server->server_fib6_index);
+ if (server_fib)
+ server_fib_id= server_fib->table_id;
+
+ rx_fib= ip6_fib_get(rx_fib_index);
+ if (rx_fib)
+ rx_fib_id = rx_fib->table_id;
- s = format (s, "%=40U%=40U%=14u",
- format_ip6_address, &dm->dhcpv6_server,
- format_ip6_address, &dm->dhcpv6_src_address,
- fib_id);
+ s = format (s, "%=40U%=40U%=14u%=14u%=20s",
+ format_ip6_address, &server->dhcp6_server,
+ format_ip6_address, &server->dhcp6_src_address,
+ server_fib_id, rx_fib_id,
+ server->insert_vss ? "yes" : "no");
return s;
}
@@ -871,9 +978,24 @@ dhcpv6_proxy_show_command_fn (vlib_main_t * vm,
vlib_cli_command_t * cmd)
{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
+ ip6_main_t * im = &ip6_main;
+ int i;
+ u32 server_index;
+ dhcpv6_server_t * server;
- vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, 0 /* header line */);
- vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, dm);
+ vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, 0 /* header line */,
+ 0, 0);
+ for (i = 0; i < vec_len (im->fibs); i++)
+ {
+ if (i < vec_len(dm->dhcp6_server_index_by_rx_fib_index))
+ server_index = dm->dhcp6_server_index_by_rx_fib_index[i];
+ else
+ server_index = 0;
+ server = pool_elt_at_index (dm->dhcp6_servers, server_index);
+ if (server->valid)
+ vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, dm,
+ server, i);
+ }
return 0;
}
@@ -885,7 +1007,7 @@ VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = {
int dhcpv6_proxy_set_vss(u32 tbl_id,
u32 oui,
- u32 fib_id,
+ u32 fib_id,
int is_del)
{
dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main;
@@ -899,7 +1021,7 @@ int dhcpv6_proxy_set_vss(u32 tbl_id,
v = pool_elt_at_index (dm->vss, p[0]);
if (!v)
return VNET_API_ERROR_NO_SUCH_FIB;
-
+
old_oui = v->vpn_id.oui;
old_fib_id = v->vpn_id.fib_id;
@@ -915,18 +1037,18 @@ int dhcpv6_proxy_set_vss(u32 tbl_id,
else
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
-
+
pool_put(dm->vss, v);
hash_unset (dm->vss_index_by_vrf_id, tbl_id);
} else if (is_del)
return VNET_API_ERROR_NO_SUCH_ENTRY;
-
+
pool_get (dm->vss, v);
memset (v, ~0, sizeof (*v));
v->vpn_id.fib_id = fib_id;
v->vpn_id.oui = oui;
hash_set (dm->vss_index_by_vrf_id, tbl_id, v - dm->vss);
-
+
return 0;
}
@@ -940,7 +1062,7 @@ dhcpv6_vss_command_fn (vlib_main_t * vm,
u32 oui=0;
u32 fib_id=0, tbl_id=~0;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "oui %d", &oui))
got_new_vss = 1;
@@ -982,7 +1104,7 @@ dhcpv6_vss_command_fn (vlib_main_t * vm,
else
return clib_error_return (0, "parse error`%U'",
format_unformat_error, input);
-
+
}
VLIB_CLI_COMMAND (dhcpv6_proxy_vss_command, static) = {
@@ -995,7 +1117,7 @@ static clib_error_t *
dhcpv6_vss_show_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
-
+
{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
dhcpv6_vss_info *v;
@@ -1003,7 +1125,7 @@ dhcpv6_vss_show_command_fn (vlib_main_t * vm,
u32 fib_id;
u32 tbl_id;
uword index;
-
+
vlib_cli_output (vm, "%=6s%=6s%=12s","Table", "OUI", "VPN ID");
hash_foreach (tbl_id, index, dm->vss_index_by_vrf_id,
({
@@ -1013,7 +1135,7 @@ dhcpv6_vss_show_command_fn (vlib_main_t * vm,
vlib_cli_output (vm, "%=6d%=6d%=12d",
tbl_id, oui, fib_id);
}));
-
+
return 0;
}
@@ -1027,15 +1149,15 @@ static clib_error_t *
dhcpv6_link_address_show_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
-
+
{
dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main;
- vnet_main_t *vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main();
u32 sw_if_index0=0, sw_if_index;
ip6_address_t *ia0;
vnet_sw_interface_t *swif;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
if (unformat(input, "%U",
@@ -1048,13 +1170,13 @@ dhcpv6_link_address_show_command_fn (vlib_main_t * vm,
if (ia0)
{
vlib_cli_output (vm, "%=20s%=48s", "interface", "link-address");
-
+
vlib_cli_output (vm, "%=20U%=48U",
format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index0,
format_ip6_address, ia0);
} else
vlib_cli_output (vm, "%=34s%=20U", "No IPv6 address configured on",
- format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index);
+ format_vnet_sw_if_index_name, dm->vnet_main, sw_if_index);
} else
break;
}