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-rw-r--r--src/vnet/dhcpv6/proxy_node.c513
1 files changed, 288 insertions, 225 deletions
diff --git a/src/vnet/dhcpv6/proxy_node.c b/src/vnet/dhcpv6/proxy_node.c
index 4137624c..f40798e6 100644
--- a/src/vnet/dhcpv6/proxy_node.c
+++ b/src/vnet/dhcpv6/proxy_node.c
@@ -18,6 +18,7 @@
#include <vlib/vlib.h>
#include <vnet/pg/pg.h>
#include <vnet/dhcpv6/proxy.h>
+#include <vnet/dhcp/proxy.h>
#include <vnet/fib/ip6_fib.h>
#include <vnet/mfib/mfib_table.h>
#include <vnet/mfib/ip6_mfib.h>
@@ -117,6 +118,42 @@ static inline void copy_ip6_address (ip6_address_t *dst, ip6_address_t *src)
dst->as_u64[1] = src->as_u64[1];
}
+static inline dhcpv6_vss_info *
+dhcpv6_get_vss_info (dhcpv6_proxy_main_t *dm,
+ u32 rx_fib_index)
+{
+ dhcpv6_vss_info *v;
+
+ if (vec_len(dm->vss_index_by_rx_fib_index) <= rx_fib_index ||
+ dm->vss_index_by_rx_fib_index[rx_fib_index] == ~0)
+ {
+ v = NULL;
+ }
+ else
+ {
+ v = pool_elt_at_index (dm->vss,
+ dm->vss_index_by_rx_fib_index[rx_fib_index]);
+ }
+
+ return (v);
+}
+
+static inline dhcpv6_server_t *
+dhcpv6_get_server (dhcpv6_proxy_main_t *dm,
+ u32 rx_fib_index)
+{
+ dhcpv6_server_t *s = NULL;
+
+ if (vec_len(dm->dhcp6_server_index_by_rx_fib_index) > rx_fib_index &&
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] != ~0)
+ {
+ s = pool_elt_at_index (dm->dhcp6_servers,
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index]);
+ }
+
+ return (s);
+}
+
static uword
dhcpv6_proxy_to_server_input (vlib_main_t * vm,
vlib_node_runtime_t * node,
@@ -132,13 +169,10 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
u32 pkts_wrong_msg_type=0;
u32 pkts_too_big=0;
ip6_main_t * im = &ip6_main;
- 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;
@@ -172,12 +206,8 @@ 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;
dhcpv6_vss_info *vss;
-
bi0 = from[0];
to_next[0] = bi0;
from += 1;
@@ -228,25 +258,15 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
/* 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 = dhcpv6_get_server(dpm, rx_fib_idx);
- if (vec_len(dpm->dhcp6_server_index_by_rx_fib_index) <= rx_fib_idx)
- goto no_server;
-
- 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;
+ if (PREDICT_FALSE (NULL == server))
+ {
+ error0 = DHCPV6_PROXY_ERROR_NO_SERVER;
+ next0 = DHCPV6_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_server++;
+ goto do_trace;
+ }
server_fib_idx = server->server_fib6_index;
vnet_buffer(b0)->sw_if_index[VLIB_TX] = server_fib_idx;
@@ -331,19 +351,6 @@ 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 = ip6_fib_get (rx_fib_idx);
-
- //TODO: Revisit if hash makes sense here
- p_vss = hash_get (dpm->vss_index_by_vrf_id,
- fib->table_id);
- if (p_vss)
- {
- vss = pool_elt_at_index (dpm->vss, p_vss[0]);
- oui1 = vss->vpn_id.oui;
- fib_id1 = vss->vpn_id.fib_id;
- }
-
id1->opt.option = clib_host_to_net_u16(DHCPV6_OPTION_INTERFACE_ID);
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);
@@ -360,20 +367,24 @@ dhcpv6_proxy_to_server_input (vlib_main_t * vm,
clib_memcpy(cmac->data, client_src_mac, 6);
u1->length += sizeof(*cmac);
}
- if (server->insert_vss !=0 ) {
+
+ //TODO: Revisit if hash makes sense here
+ vss = dhcpv6_get_vss_info(dpm, rx_fib_idx);
+
+ if (NULL != vss) {
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] = oui1>>16 & 0xff;
- vss1->data[2] = oui1>>8 & 0xff;
- vss1->data[3] = oui1 & 0xff;
- vss1->data[4] = fib_id1>>24 & 0xff;
- vss1->data[5] = fib_id1>>16 & 0xff;
- vss1->data[6] = fib_id1>>8 & 0xff;
- vss1->data[7] = fib_id1 & 0xff;
+ vss1->data[1] = vss->vpn_id.oui >>16 & 0xff;
+ vss1->data[2] = vss->vpn_id.oui >>8 & 0xff;
+ vss1->data[3] = vss->vpn_id.oui & 0xff;
+ vss1->data[4] = vss->vpn_id.fib_id >> 24 & 0xff;
+ vss1->data[5] = vss->vpn_id.fib_id >> 16 & 0xff;
+ vss1->data[6] = vss->vpn_id.fib_id >> 8 & 0xff;
+ vss1->data[7] = vss->vpn_id.fib_id & 0xff;
u1->length += sizeof(*vss1);
}
@@ -524,9 +535,8 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
u16 len = 0;
u8 interface_opt_flag = 0;
u8 relay_msg_opt_flag = 0;
- ip6_fib_t * svr_fib;
ip6_main_t * im = &ip6_main;
- u32 server_fib_idx, svr_fib_id, client_fib_idx, server_idx;
+ u32 server_fib_idx, client_fib_idx;
bi0 = from[0];
from += 1;
@@ -608,31 +618,18 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm,
vlib_buffer_advance (b0, sizeof(*r0));
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 = dhcpv6_get_server(dm, client_fib_idx);
- server = pool_elt_at_index (dm->dhcp6_servers, server_idx);
- if (server->valid == 0)
+ if (NULL == server)
{
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 (server_fib_idx);
- svr_fib_id = svr_fib->table_id;
- if (svr_fib_id != server->server_fib6_index ||
+ if (server_fib_idx != 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])
{
@@ -760,7 +757,7 @@ clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm)
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));
+ dm->vss_index_by_rx_fib_index = NULL;
/* RFC says this is the dhcpv6 server address */
dm->all_dhcpv6_server_address.as_u64[0] = clib_host_to_net_u64 (0xFF05000000000000);
@@ -785,121 +782,138 @@ clib_error_t * dhcpv6_proxy_init (vlib_main_t * vm)
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)
+int dhcpv6_proxy_set_server (ip6_address_t *addr,
+ ip6_address_t *src_address,
+ u32 rx_fib_id,
+ u32 server_fib_id,
+ int is_del)
{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
dhcpv6_server_t * server = 0;
- u32 server_fib_index = 0;
u32 rx_fib_index = 0;
+ int rc = 0;
rx_fib_index = ip6_mfib_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;
+ const mfib_prefix_t all_dhcp_servers = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_grp_addr = {
+ .ip6 = dm->all_dhcpv6_server_relay_agent_address,
}
+ };
- 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)
+ if (is_del)
{
- server = pool_elt_at_index (dm->dhcp6_servers, 0);
- if (server->valid)
- goto reconfigure_it;
- else
- goto initialize_it;
- }
+ server = dhcpv6_get_server(dm, rx_fib_index);
- 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)
+ if (NULL == server)
{
- server = pool_elt_at_index (dm->dhcp6_servers, server_fib_index);
- goto initialize_it;
+ rc = VNET_API_ERROR_NO_SUCH_ENTRY;
+ goto out;
}
- }
- /*Allocate a new server*/
- pool_get (dm->dhcp6_servers, server);
-
- initialize_it:
- {
- const mfib_prefix_t all_dhcp_servers = {
- .fp_len = 128,
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_grp_addr = {
- .ip6 = dm->all_dhcpv6_server_relay_agent_address,
- }
- };
- const fib_route_path_t path_for_us = {
- .frp_proto = FIB_PROTOCOL_IP6,
- .frp_addr = zero_addr,
- .frp_sw_if_index = 0xffffffff,
- .frp_fib_index = ~0,
- .frp_weight = 0,
- .frp_flags = FIB_ROUTE_PATH_LOCAL,
- };
- mfib_table_entry_path_update(rx_fib_index,
- &all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
/*
- * Each interface that is enabled in this table, needs to be added
- * as an accepting interface, but this is not easily doable in VPP.
- * So we cheat. Add a flag to the entry that indicates accept form
- * any interface.
- * We will still only accept on v6 enabled interfaces, since the input
- * feature ensures this.
+ * release the locks held on the server fib and rx mfib
*/
- mfib_table_entry_update(rx_fib_index,
+ mfib_table_entry_delete(rx_fib_index,
&all_dhcp_servers,
- MFIB_SOURCE_DHCP,
- MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
- }
+ MFIB_SOURCE_DHCP);
+ mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
+ fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6);
-reconfigure_it:
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] = ~0;
- 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;
+ memset (server, 0, sizeof (*server));
+ pool_put (dm->dhcp6_servers, server);
+ }
+ else
+ {
+ if (addr->as_u64[0] == 0 &&
+ addr->as_u64[1] == 0 )
+ {
+ rc = VNET_API_ERROR_INVALID_DST_ADDRESS;
+ goto out;
+ }
+ if (src_address->as_u64[0] == 0 &&
+ src_address->as_u64[1] == 0)
+ {
+ rc = VNET_API_ERROR_INVALID_SRC_ADDRESS;
+ goto out;
+ }
- 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;
+ server = dhcpv6_get_server(dm, rx_fib_index);
- return 0;
+ if (NULL != server)
+ {
+ /* modify of an existing entry */
+ ip6_fib_t *fib;
+
+ fib = ip6_fib_get(server->server_fib6_index);
+
+ if (fib->table_id != server_fib_id)
+ {
+ /* swap tables */
+ fib_table_unlock(server->server_fib6_index, FIB_PROTOCOL_IP6);
+ server->server_fib6_index =
+ ip6_fib_table_find_or_create_and_lock(server_fib_id);
+ }
+ }
+ else
+ {
+ /* Allocate a new server */
+ pool_get (dm->dhcp6_servers, server);
+
+ vec_validate_init_empty (dm->dhcp6_server_index_by_rx_fib_index,
+ rx_fib_index, ~0);
+ dm->dhcp6_server_index_by_rx_fib_index[rx_fib_index] =
+ server - dm->dhcp6_servers;
+
+ server->server_fib6_index =
+ ip6_fib_table_find_or_create_and_lock(server_fib_id);
+ mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6);
+
+ const mfib_prefix_t all_dhcp_servers = {
+ .fp_len = 128,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_grp_addr = {
+ .ip6 = dm->all_dhcpv6_server_relay_agent_address,
+ }
+ };
+ const fib_route_path_t path_for_us = {
+ .frp_proto = FIB_PROTOCOL_IP6,
+ .frp_addr = zero_addr,
+ .frp_sw_if_index = 0xffffffff,
+ .frp_fib_index = ~0,
+ .frp_weight = 0,
+ .frp_flags = FIB_ROUTE_PATH_LOCAL,
+ };
+ mfib_table_entry_path_update(rx_fib_index,
+ &all_dhcp_servers,
+ MFIB_SOURCE_DHCP,
+ &path_for_us,
+ MFIB_ITF_FLAG_FORWARD);
+ /*
+ * Each interface that is enabled in this table, needs to be added
+ * as an accepting interface, but this is not easily doable in VPP.
+ * So we cheat. Add a flag to the entry that indicates accept form
+ * any interface.
+ * We will still only accept on v6 enabled interfaces, since the
+ * input feature ensures this.
+ */
+ mfib_table_entry_update(rx_fib_index,
+ &all_dhcp_servers,
+ MFIB_SOURCE_DHCP,
+ MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
+ }
+ copy_ip6_address(&server->dhcp6_server, addr);
+ copy_ip6_address(&server->dhcp6_src_address, src_address);
+ }
+
+out:
+ mfib_table_unlock(rx_fib_index, FIB_PROTOCOL_IP6);
+
+ return (rc);
}
static clib_error_t *
@@ -910,7 +924,7 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
ip6_address_t addr, src_addr;
int set_server = 0, set_src_address = 0;
u32 rx_fib_id = 0, server_fib_id = 0;
- int is_del = 0, add_vss = 0;
+ int is_del = 0;
while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
@@ -924,9 +938,6 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
;
else if (unformat (input, "rx-fib-id %d", &rx_fib_id))
;
- else if (unformat (input, "add-vss-option")
- || unformat (input, "insert-option"))
- add_vss = 1;
else if (unformat (input, "delete") ||
unformat (input, "del"))
is_del = 1;
@@ -938,8 +949,8 @@ dhcpv6_proxy_set_command_fn (vlib_main_t * vm,
{
int rv;
- rv = dhcpv6_proxy_set_server_2 (&addr, &src_addr, rx_fib_id,
- server_fib_id, add_vss, is_del);
+ rv = dhcpv6_proxy_set_server (&addr, &src_addr, rx_fib_id,
+ server_fib_id, is_del);
//TODO: Complete the errors
switch (rv)
@@ -962,7 +973,7 @@ 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 [del] server <ipv6-addr> src-address <ipv6-addr> "
- "[add-vss-option] [server-fib-id <fib-id>] [rx-fib-id <fib-id>] ",
+ "[server-fib-id <fib-id>] [rx-fib-id <fib-id>] ",
.function = dhcpv6_proxy_set_command_fn,
};
@@ -976,8 +987,8 @@ u8 * format_dhcpv6_proxy_server (u8 * s, va_list * args)
if (dm == 0)
{
- s = format (s, "%=40s%=40s%=14s%=14s%=20s", "Server Address", "Source Address",
- "Server FIB", "RX FIB", "Insert VSS Option");
+ s = format (s, "%=40s%=40s%=14s%=14s", "Server Address", "Source Address",
+ "Server FIB", "RX FIB");
return s;
}
@@ -990,11 +1001,10 @@ u8 * format_dhcpv6_proxy_server (u8 * s, va_list * args)
if (rx_fib)
rx_fib_id = rx_fib->table_id;
- s = format (s, "%=40U%=40U%=14u%=14u%=20s",
+ s = format (s, "%=40U%=40U%=14u%=14u",
format_ip6_address, &server->dhcp6_server,
format_ip6_address, &server->dhcp6_src_address,
- server_fib_id, rx_fib_id,
- server->insert_vss ? "yes" : "no");
+ server_fib_id, rx_fib_id);
return s;
}
@@ -1003,25 +1013,25 @@ dhcpv6_proxy_show_command_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
- ip6_main_t * im = &ip6_main;
+ dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
int i;
u32 server_index;
dhcpv6_server_t * server;
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);
- }
+ vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index)
+ {
+ server_index = dpm->dhcp6_server_index_by_rx_fib_index[i];
+ if (~0 == server_index)
+ continue;
+
+ server = pool_elt_at_index (dpm->dhcp6_servers, server_index);
+
+ vlib_cli_output (vm, "%U", format_dhcpv6_proxy_server, dpm,
+ server, i);
+ }
+
return 0;
}
@@ -1031,51 +1041,104 @@ VLIB_CLI_COMMAND (dhcpv6_proxy_show_command, static) = {
.function = dhcpv6_proxy_show_command_fn,
};
+void
+dhcpv6_proxy_dump (void *opaque,
+ u32 context)
+{
+ dhcpv6_proxy_main_t * dpm = &dhcpv6_proxy_main;
+ ip6_fib_t *s_fib, *r_fib;
+ dhcpv6_server_t * server;
+ u32 server_index, i;
+ dhcpv6_vss_info *v;
+
+ vec_foreach_index (i, dpm->dhcp6_server_index_by_rx_fib_index)
+ {
+ server_index = dpm->dhcp6_server_index_by_rx_fib_index[i];
+ if (~0 == server_index)
+ continue;
+
+ server = pool_elt_at_index (dpm->dhcp6_servers, server_index);
+ v = dhcpv6_get_vss_info(dpm, i);
+
+ ip46_address_t src_addr = {
+ .ip6 = server->dhcp6_src_address,
+ };
+ ip46_address_t server_addr = {
+ .ip6 = server->dhcp6_server,
+ };
+
+ s_fib = ip6_fib_get(server->server_fib6_index);
+ r_fib = ip6_fib_get(i);
+
+ dhcp_send_details(opaque,
+ context,
+ &server_addr,
+ &src_addr,
+ s_fib->table_id,
+ r_fib->table_id,
+ (v ? v->vpn_id.fib_id : 0),
+ (v ? v->vpn_id.oui : 0));
+ }
+}
+
int dhcpv6_proxy_set_vss(u32 tbl_id,
u32 oui,
u32 fib_id,
int is_del)
{
dhcpv6_proxy_main_t *dm = &dhcpv6_proxy_main;
- u32 old_oui, old_fib_id;
- uword *p;
- dhcpv6_vss_info *v;
+ dhcpv6_vss_info *v = NULL;
+ u32 rx_fib_index;
+ int rc = 0;
- p = hash_get (dm->vss_index_by_vrf_id, tbl_id);
+ rx_fib_index = ip6_fib_table_find_or_create_and_lock(tbl_id);
+ v = dhcpv6_get_vss_info(dm, rx_fib_index);
- if (p) {
- 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;
+ if (NULL != v)
+ {
+ if (is_del)
+ {
+ /* release the lock held on the table when the VSS
+ * info was created */
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP6);
+ pool_put (dm->vss, v);
+ dm->vss_index_by_rx_fib_index[rx_fib_index] = ~0;
+ }
+ else
+ {
+ /* this is a modify */
+ v->vpn_id.fib_id = fib_id;
+ v->vpn_id.oui = oui;
+ }
+ }
+ else
+ {
if (is_del)
+ rc = VNET_API_ERROR_NO_SUCH_ENTRY;
+ else
{
- if (old_oui == oui &&
- old_fib_id == fib_id )
- {
- pool_put(dm->vss, v);
- hash_unset (dm->vss_index_by_vrf_id, tbl_id);
- return 0;
- }
- else
- return VNET_API_ERROR_NO_SUCH_ENTRY;
+ /* create a new entry */
+ vec_validate_init_empty(dm->vss_index_by_rx_fib_index,
+ rx_fib_index, ~0);
+
+ /* hold a lock on the table whilst the VSS info exist */
+ fib_table_lock (rx_fib_index,
+ FIB_PROTOCOL_IP6);
+
+ pool_get (dm->vss, v);
+ v->vpn_id.fib_id = fib_id;
+ v->vpn_id.oui = oui;
+ dm->vss_index_by_rx_fib_index[rx_fib_index] = v - dm->vss;
}
+ }
- 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);
+ /* Release the lock taken during the create_or_lock at the start */
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP6);
- return 0;
+ return (rc);
}
@@ -1147,19 +1210,19 @@ dhcpv6_vss_show_command_fn (vlib_main_t * vm,
{
dhcpv6_proxy_main_t * dm = &dhcpv6_proxy_main;
dhcpv6_vss_info *v;
- u32 oui;
- u32 fib_id;
- u32 tbl_id;
- uword index;
+ ip6_fib_t *fib;
+ u32 *fib_index;
vlib_cli_output (vm, "%=6s%=6s%=12s","Table", "OUI", "VPN ID");
- hash_foreach (tbl_id, index, dm->vss_index_by_vrf_id,
+ pool_foreach (fib_index, dm->vss_index_by_rx_fib_index,
({
- v = pool_elt_at_index (dm->vss, index);
- oui = v->vpn_id.oui;
- fib_id = v->vpn_id.fib_id;
- vlib_cli_output (vm, "%=6d%=6d%=12d",
- tbl_id, oui, fib_id);
+ fib = ip6_fib_get (*fib_index);
+ v = pool_elt_at_index (dm->vss, *fib_index);
+
+ vlib_cli_output (vm, "%=6d%=6d%=12d",
+ fib->table_id,
+ v->vpn_id.oui,
+ v->vpn_id.fib_id);
}));
return 0;