#include <vnet/pg/pg.h>
#include <vnet/dhcp/dhcp_proxy.h>
#include <vnet/dhcp/dhcp6_packet.h>
-#include <vnet/fib/ip6_fib.h>
#include <vnet/mfib/mfib_table.h>
#include <vnet/mfib/ip6_mfib.h>
+#include <vnet/fib/fib.h>
static char * dhcpv6_proxy_error_strings[] = {
#define dhcpv6_proxy_error(n,s) s,
ip6_main_t * im = &ip6_main;
ip6_address_t * src;
int bogus_length;
- dhcp_server_t * server;
+ dhcp_proxy_t *proxy;
+ dhcp_server_t *server;
u32 rx_fib_idx = 0, server_fib_idx = 0;
next_index = node->cached_next_index;
u8 client_src_mac[6];
vlib_buffer_free_list_t *fl;
dhcp_vss_t *vss;
+ u8 is_solicit = 0;
bi0 = from[0];
- to_next[0] = bi0;
from += 1;
- to_next += 1;
n_left_from -= 1;
- n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
/* 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 = dhcp_get_server(dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
+ rx_fib_idx = im->mfib_index_by_sw_if_index [rx_sw_if_index];
+ proxy = dhcp_get_proxy(dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
- if (PREDICT_FALSE (NULL == server))
+ if (PREDICT_FALSE (NULL == proxy))
{
error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
goto do_trace;
}
+ server = &proxy->dhcp_servers[0];
server_fib_idx = server->server_fib_index;
vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx;
copy_ip6_address(&r1->link_addr, ia0);
link_address_set:
- fl = vlib_buffer_get_free_list (vm, b0->free_list_index);
+ fl = vlib_buffer_get_free_list (vm, vlib_buffer_get_free_list_index (b0));
if ((b0->current_length+sizeof(*id1)+sizeof(*vss1)+sizeof(*cmac))
> fl->n_data_bytes)
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) -
- sizeof(cmac->opt));
+ 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
+ cmac->link_type = clib_host_to_net_u16(1); /* ethernet */
clib_memcpy(cmac->data, client_src_mac, 6);
u1->length += sizeof(*cmac);
}
vss = dhcp_get_vss_info(dpm, rx_fib_idx, FIB_PROTOCOL_IP6);
- if (NULL != vss) {
+ if (vss)
+ {
+ u16 id_len; /* length of VPN ID */
+ u16 type_len = sizeof (vss1->vss_type);
+
vss1 = (dhcpv6_vss_t *) (((uword) ip1) + b0->current_length);
- b0->current_length += (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
- vss1->data[1] = vss->oui >>16 & 0xff;
- vss1->data[2] = vss->oui >>8 & 0xff;
- vss1->data[3] = vss->oui & 0xff;
- vss1->data[4] = vss->fib_id >> 24 & 0xff;
- vss1->data[5] = vss->fib_id >> 16 & 0xff;
- vss1->data[6] = vss->fib_id >> 8 & 0xff;
- vss1->data[7] = vss->fib_id & 0xff;
- u1->length += sizeof(*vss1);
- }
+ vss1->vss_type = vss->vss_type;
+ if (vss->vss_type == VSS_TYPE_VPN_ID)
+ {
+ id_len = sizeof (vss->vpn_id); /* vpn_id is 7 bytes */
+ memcpy (vss1->data, vss->vpn_id, id_len);
+ }
+ else if (vss->vss_type == VSS_TYPE_ASCII)
+ {
+ id_len = vec_len (vss->vpn_ascii_id);
+ memcpy (vss1->data, vss->vpn_ascii_id, id_len);
+ }
+ else /* must be VSS_TYPE_DEFAULT, no VPN ID */
+ id_len = 0;
+
+ vss1->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_VSS);
+ vss1->opt.length = clib_host_to_net_u16 (type_len + id_len);
+ u1->length += type_len + id_len + sizeof (vss1->opt);
+ b0->current_length += type_len + id_len + sizeof (vss1->opt);
+ }
pkts_to_server++;
u1->checksum = 0;
ip1->payload_length = u1->length;
ip1->protocol = PROTO_UDP;
ip1->hop_limit = HOP_COUNT_LIMIT;
- src = (server->dhcp_server.ip6.as_u64[0] ||
- server->dhcp_server.ip6.as_u64[1]) ?
- &server->dhcp_server.ip6 : &all_dhcpv6_server_address;
+ src = ((server->dhcp_server.ip6.as_u64[0] ||
+ server->dhcp_server.ip6.as_u64[1]) ?
+ &server->dhcp_server.ip6 :
+ &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 = (server->dhcp_src_address.ip6.as_u64[0] ||
- server->dhcp_src_address.ip6.as_u64[1]) ?
- &server->dhcp_src_address.ip6 : ia0;
+ src = (proxy->dhcp_src_address.ip6.as_u64[0] ||
+ proxy->dhcp_src_address.ip6.as_u64[1]) ?
+ &proxy->dhcp_src_address.ip6 : ia0;
if (ia0 == 0)
{
error0 = DHCPV6_PROXY_ERROR_NO_SRC_ADDRESS;
next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
+ is_solicit = (DHCPV6_MSG_SOLICIT == h0->u.msg_type);
+
+ /*
+ * If we have multiple servers configured and this is the
+ * client's discover message, then send copies to each of
+ * those servers
+ */
+ if (is_solicit && vec_len(proxy->dhcp_servers) > 1)
+ {
+ u32 ii;
+
+ for (ii = 1; ii < vec_len(proxy->dhcp_servers); ii++)
+ {
+ vlib_buffer_t *c0;
+ u32 ci0;
+
+ c0 = vlib_buffer_copy(vm, b0);
+ ci0 = vlib_get_buffer_index(vm, c0);
+ server = &proxy->dhcp_servers[ii];
+
+ ip0 = vlib_buffer_get_current (c0);
+
+ src = ((server->dhcp_server.ip6.as_u64[0] ||
+ server->dhcp_server.ip6.as_u64[1]) ?
+ &server->dhcp_server.ip6 :
+ &all_dhcpv6_server_address);
+ copy_ip6_address(&ip1->dst_address, src);
+
+ to_next[0] = ci0;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ ci0, next0);
+
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ dhcpv6_proxy_trace_t *tr;
+
+ tr = vlib_add_trace (vm, node, c0, sizeof (*tr));
+ tr->which = 0; /* to server */
+ tr->error = error0;
+ tr->original_sw_if_index = rx_sw_if_index;
+ tr->sw_if_index = sw_if_index;
+ if (next0 == DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP)
+ copy_ip6_address((ip6_address_t *)&tr->packet_data[0],
+ &server->dhcp_server.ip6);
+ }
+
+ if (PREDICT_FALSE(0 == n_left_to_next))
+ {
+ vlib_put_next_frame (vm, node, next_index,
+ n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index,
+ to_next, n_left_to_next);
+ }
+ }
+ }
+
do_trace:
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
}
do_enqueue:
+ to_next[0] = bi0;
+ to_next += 1;
+ n_left_to_next -= 1;
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
u32 n_left_from, * from;
ethernet_main_t *em = ethernet_get_main (vm);
dhcp_proxy_main_t * dm = &dhcp_proxy_main;
- dhcp_server_t * server;
+ dhcp_proxy_t *proxy;
+ dhcp_server_t *server;
vnet_main_t * vnm = vnet_get_main();
int bogus_length;
//Advance buffer to start of encapsulated DHCPv6 message
vlib_buffer_advance (b0, sizeof(*r0));
- client_fib_idx = im->fib_index_by_sw_if_index[sw_if_index];
- server = dhcp_get_server(dm, client_fib_idx, FIB_PROTOCOL_IP6);
+ client_fib_idx = im->mfib_index_by_sw_if_index[sw_if_index];
+ proxy = dhcp_get_proxy(dm, client_fib_idx, FIB_PROTOCOL_IP6);
- if (NULL == server)
+ if (NULL == proxy)
{
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]];
- if (server_fib_idx != server->server_fib_index ||
- ip0->src_address.as_u64[0] != server->dhcp_server.ip6.as_u64[0] ||
- ip0->src_address.as_u64[1] != server->dhcp_server.ip6.as_u64[1])
- {
- //drop packet if not from server with configured address or FIB
- error0 = DHCPV6_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
- goto drop_packet;
- }
+ vec_foreach(server, proxy->dhcp_servers)
+ {
+ if (server_fib_idx == server->server_fib_index &&
+ ip0->src_address.as_u64[0] == server->dhcp_server.ip6.as_u64[0] &&
+ ip0->src_address.as_u64[1] == server->dhcp_server.ip6.as_u64[1])
+ {
+ goto server_found;
+ }
+ }
+ //drop packet if not from server with configured address or FIB
+ error0 = DHCPV6_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
+ goto drop_packet;
+
+ server_found:
vnet_buffer (b0)->sw_if_index[VLIB_TX] = original_sw_if_index
= sw_if_index;
return VNET_API_ERROR_INVALID_SRC_ADDRESS;
rx_fib_index = mfib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6,
- rx_table_id);
+ rx_table_id,
+ MFIB_SOURCE_DHCP);
if (is_del)
{
- rc = dhcp_proxy_server_del (FIB_PROTOCOL_IP6, rx_fib_index);
-
- if (0 == rc)
+ if (dhcp_proxy_server_del (FIB_PROTOCOL_IP6, rx_fib_index,
+ addr, server_table_id))
{
mfib_table_entry_delete(rx_fib_index,
&all_dhcp_servers,
MFIB_SOURCE_DHCP);
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
+ mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
}
}
else
{
const fib_route_path_t path_for_us = {
- .frp_proto = FIB_PROTOCOL_IP6,
+ .frp_proto = DPO_PROTO_IP6,
.frp_addr = zero_addr,
.frp_sw_if_index = 0xffffffff,
.frp_fib_index = ~0,
mfib_table_entry_update(rx_fib_index,
&all_dhcp_servers,
MFIB_SOURCE_DHCP,
+ MFIB_RPF_ID_NONE,
MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
- mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6);
+ mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
}
}
- mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
+ mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6, MFIB_SOURCE_DHCP);
return (rc);
}
static u8 *
format_dhcp6_proxy_server (u8 * s, va_list * args)
{
- dhcp_server_t * server = va_arg (*args, dhcp_server_t *);
- ip6_fib_t * rx_fib, * server_fib;
+ dhcp_proxy_t * proxy = va_arg (*args, dhcp_proxy_t *);
+ fib_table_t *server_fib;
+ dhcp_server_t *server;
+ ip6_mfib_t *rx_fib;
- if (NULL == server)
+ if (proxy == 0)
{
- s = format (s, "%=40s%=40s%=14s%=14s", "Server Address", "Source Address",
- "Server FIB", "RX FIB");
+ s = format (s, "%=14s%=16s%s", "RX FIB", "Src Address",
+ "Servers FIB,Address");
return s;
}
- server_fib = ip6_fib_get(server->server_fib_index);
- rx_fib = ip6_fib_get(server->rx_fib_index);
+ rx_fib = ip6_mfib_get(proxy->rx_fib_index);
+ s = format (s, "%=14u%=16U",
+ rx_fib->table_id,
+ format_ip46_address, &proxy->dhcp_src_address, IP46_TYPE_ANY);
+
+ vec_foreach(server, proxy->dhcp_servers)
+ {
+ server_fib = fib_table_get(server->server_fib_index,
+ FIB_PROTOCOL_IP6);
+ s = format (s, "%u,%U ",
+ server_fib->ft_table_id,
+ format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY);
+ }
- s = format (s, "%=40U%=40U%=14u%=14u",
- format_ip46_address, &server->dhcp_server, IP46_TYPE_ANY,
- format_ip46_address, &server->dhcp_src_address, IP46_TYPE_ANY,
- server_fib->table_id, rx_fib->table_id);
return s;
}
static int
-dhcp6_proxy_show_walk (dhcp_server_t *server,
+dhcp6_proxy_show_walk (dhcp_proxy_t *proxy,
void *ctx)
{
vlib_main_t * vm = ctx;
- vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, server);
+ vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, proxy);
return (1);
}
static clib_error_t *
dhcpv6_proxy_show_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
vlib_cli_output (vm, "%U", format_dhcp6_proxy_server, NULL /* header line */);
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- int is_del = 0, got_new_vss=0;
- u32 oui=0;
- u32 fib_id=0, tbl_id=~0;
+ u8 is_del = 0, vss_type = VSS_TYPE_DEFAULT;
+ u8 *vpn_ascii_id = 0;
+ u32 oui = 0, fib_id = 0, tbl_id = ~0;
while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "oui %d", &oui))
- got_new_vss = 1;
+ if (unformat (input, "table %d", &tbl_id))
+ ;
+ else if (unformat (input, "oui %d", &oui))
+ vss_type = VSS_TYPE_VPN_ID;
else if (unformat (input, "vpn-id %d", &fib_id))
- got_new_vss = 1;
- else if (unformat (input, "table %d", &tbl_id))
- got_new_vss = 1;
+ vss_type = VSS_TYPE_VPN_ID;
+ else if (unformat (input, "vpn-ascii-id %s", &vpn_ascii_id))
+ vss_type = VSS_TYPE_ASCII;
else if (unformat(input, "delete") || unformat(input, "del"))
is_del = 1;
else
if (tbl_id ==~0)
return clib_error_return (0, "no table ID specified.");
- if (is_del || got_new_vss)
+ int rv = dhcp_proxy_set_vss(FIB_PROTOCOL_IP6, tbl_id, vss_type,
+ vpn_ascii_id, oui, fib_id, is_del);
+ switch (rv)
{
- int rv;
-
- rv = dhcp_proxy_set_vss(FIB_PROTOCOL_IP6, tbl_id, oui, fib_id, is_del);
- switch (rv)
- {
- case 0:
- return 0;
-
- case VNET_API_ERROR_NO_SUCH_FIB:
- return clib_error_return (0, "vss info (oui:%d, vpn-id:%d) not found in table %d.",
- oui, fib_id, tbl_id);
-
- case VNET_API_ERROR_NO_SUCH_ENTRY:
- return clib_error_return (0, "vss for table %d not found in pool.",
- tbl_id);
-
- default:
- return clib_error_return (0, "BUG: rv %d", rv);
- }
+ case 0:
+ return 0;
+ case VNET_API_ERROR_NO_SUCH_ENTRY:
+ return clib_error_return (0, "vss for table %d not found in pool.",
+ tbl_id);
+ default:
+ return clib_error_return (0, "BUG: rv %d", rv);
}
- else
- return clib_error_return (0, "parse error`%U'",
- format_unformat_error, input);
-
}
VLIB_CLI_COMMAND (dhcpv6_proxy_vss_command, static) = {
.path = "set dhcpv6 vss",
- .short_help = "set dhcpv6 vss table <table-id> oui <oui> vpn-idx <vpn-idx>",
+ .short_help = "set dhcpv6 vss table <table-id> [oui <n> vpn-id <n> | vpn-ascii-id <text>]",
.function = dhcpv6_vss_command_fn,
};
Code Review / vpp.git / blobdiff