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Diffstat (limited to 'src/vnet/dhcp/proxy_node.c')
-rw-r--r--src/vnet/dhcp/proxy_node.c676
1 files changed, 363 insertions, 313 deletions
diff --git a/src/vnet/dhcp/proxy_node.c b/src/vnet/dhcp/proxy_node.c
index 6a58fcdb185..ab6819fed54 100644
--- a/src/vnet/dhcp/proxy_node.c
+++ b/src/vnet/dhcp/proxy_node.c
@@ -18,6 +18,7 @@
#include <vlib/vlib.h>
#include <vnet/pg/pg.h>
#include <vnet/dhcp/proxy.h>
+#include <vnet/dhcp/client.h>
#include <vnet/fib/ip4_fib.h>
static char * dhcp_proxy_error_strings[] = {
@@ -57,6 +58,8 @@ typedef struct {
vlib_node_registration_t dhcp_proxy_to_server_node;
vlib_node_registration_t dhcp_proxy_to_client_node;
+dhcp_proxy_main_t dhcp_proxy_main;
+
u8 * format_dhcp_proxy_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
@@ -94,6 +97,42 @@ u8 * format_dhcp_proxy_header_with_length (u8 * s, va_list * args)
return s;
}
+static inline vss_info *
+dhcp_get_vss_info (dhcp_proxy_main_t *dm,
+ u32 rx_fib_index)
+{
+ 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 dhcp_server_t *
+dhcp_get_server (dhcp_proxy_main_t *dm,
+ u32 rx_fib_index)
+{
+ dhcp_server_t *s = NULL;
+
+ if (vec_len(dm->dhcp_server_index_by_rx_fib_index) > rx_fib_index &&
+ dm->dhcp_server_index_by_rx_fib_index[rx_fib_index] != ~0)
+ {
+ s = pool_elt_at_index (dm->dhcp_servers,
+ dm->dhcp_server_index_by_rx_fib_index[rx_fib_index]);
+ }
+
+ return (s);
+}
+
static uword
dhcp_proxy_to_server_input (vlib_main_t * vm,
vlib_node_runtime_t * node,
@@ -131,9 +170,12 @@ dhcp_proxy_to_server_input (vlib_main_t * vm,
u32 sw_if_index = 0;
u32 original_sw_if_index = 0;
u8 *end = NULL;
- u32 fib_index, server_index;
+ u32 fib_index;
dhcp_server_t * server;
u32 rx_sw_if_index;
+ dhcp_option_t *o;
+ u32 len = 0;
+ vlib_buffer_free_list_t *fl;
bi0 = from[0];
to_next[0] = bi0;
@@ -166,26 +208,16 @@ dhcp_proxy_to_server_input (vlib_main_t * vm,
rx_sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX];
fib_index = im->fib_index_by_sw_if_index [rx_sw_if_index];
-
- if (fib_index < vec_len(dpm->dhcp_server_index_by_rx_fib_index))
- server_index = dpm->dhcp_server_index_by_rx_fib_index[fib_index];
- else
- server_index = 0;
+ server = dhcp_get_server(dpm, fib_index);
- if (PREDICT_FALSE (pool_is_free_index (dpm->dhcp_servers,
- server_index)))
+ if (PREDICT_FALSE (NULL == server))
{
- no_server:
error0 = DHCP_PROXY_ERROR_NO_SERVER;
next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
pkts_no_server++;
goto do_trace;
}
- server = pool_elt_at_index (dpm->dhcp_servers, server_index);
- if (server->valid == 0)
- goto no_server;
-
vlib_buffer_advance (b0, -(sizeof(*ip0)));
ip0 = vlib_buffer_get_current (b0);
@@ -216,142 +248,131 @@ dhcp_proxy_to_server_input (vlib_main_t * vm,
h0->gateway_ip_address.as_u32 = server->dhcp_src_address.as_u32;
pkts_to_server++;
- if (server->insert_option_82)
- {
- u32 fib_index, fib_id, opt82_fib_id=0, opt82_oui=0;
- ip4_fib_t * fib;
- dhcp_option_t *o = (dhcp_option_t *) h0->options;
- u32 len = 0;
- vlib_buffer_free_list_t *fl;
+ o = (dhcp_option_t *) h0->options;
- fib_index = im->fib_index_by_sw_if_index
- [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
- fib = ip4_fib_get (fib_index);
- fib_id = fib->table_id;
-
- end = b0->data + b0->current_data + b0->current_length;
- /* TLVs are not performance-friendly... */
- while (o->option != 0xFF /* end of options */ && (u8 *)o < end)
- o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
-
- fl = vlib_buffer_get_free_list (vm, b0->free_list_index);
- // start write at (option*)o, some packets have padding
- if (((u8 *)o - (u8 *)b0->data + VPP_DHCP_OPTION82_SIZE) > fl->n_data_bytes)
- {
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_too_big++;
- goto do_trace;
- }
+ fib_index = im->fib_index_by_sw_if_index
+ [vnet_buffer(b0)->sw_if_index[VLIB_RX]];
+
+ end = b0->data + b0->current_data + b0->current_length;
+ /* TLVs are not performance-friendly... */
+ while (o->option != 0xFF /* end of options */ && (u8 *)o < end)
+ o = (dhcp_option_t *) (((uword) o) + (o->length + 2));
- if ((o->option == 0xFF) && ((u8 *)o <= end))
- {
- vnet_main_t *vnm = vnet_get_main();
- u16 old_l0, new_l0;
- ip4_address_t _ia0, * ia0 = &_ia0;
- uword *p_vss;
- vss_info *vss;
- vnet_sw_interface_t *swif;
- sw_if_index = 0;
- original_sw_if_index = 0;
+ fl = vlib_buffer_get_free_list (vm, b0->free_list_index);
+ // start write at (option*)o, some packets have padding
+ if (((u8 *)o - (u8 *)b0->data + VPP_DHCP_OPTION82_SIZE) > fl->n_data_bytes)
+ {
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_too_big++;
+ goto do_trace;
+ }
+
+ if ((o->option == 0xFF) && ((u8 *)o <= end))
+ {
+ vnet_main_t *vnm = vnet_get_main();
+ u16 old_l0, new_l0;
+ ip4_address_t _ia0, * ia0 = &_ia0;
+ vss_info *vss;
+ vnet_sw_interface_t *swif;
+ sw_if_index = 0;
+ original_sw_if_index = 0;
- original_sw_if_index = sw_if_index =
- vnet_buffer(b0)->sw_if_index[VLIB_RX];
- swif = vnet_get_sw_interface (vnm, sw_if_index);
- if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
- sw_if_index = swif->unnumbered_sw_if_index;
+ original_sw_if_index = sw_if_index =
+ vnet_buffer(b0)->sw_if_index[VLIB_RX];
+ swif = vnet_get_sw_interface (vnm, sw_if_index);
+ if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
+ sw_if_index = swif->unnumbered_sw_if_index;
- p_vss = hash_get (dpm->opt82vss_index_by_vrf_id,
- fib_id);
- if (p_vss)
- {
- vss = pool_elt_at_index (dpm->opt82vss, p_vss[0]);
- opt82_oui = vss->vpn_id.oui;
- opt82_fib_id = vss->vpn_id.fib_id;
- }
- /*
- * Get the first ip4 address on the [client-side]
- * RX interface, if not unnumbered. otherwise use
- * the loopback interface's ip address.
- */
- ia0 = ip4_interface_first_address(&ip4_main, sw_if_index, 0);
+ /*
+ * Get the first ip4 address on the [client-side]
+ * RX interface, if not unnumbered. otherwise use
+ * the loopback interface's ip address.
+ */
+ ia0 = ip4_interface_first_address(&ip4_main, sw_if_index, 0);
- if (ia0 == 0)
- {
- error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
- next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
- pkts_no_interface_address++;
- goto do_trace;
- }
-
- /* Add option 82 */
- o->option = 82; /* option 82 */
- o->length = 12; /* 12 octets to follow */
- o->data[0] = 1; /* suboption 1, circuit ID (=FIB id) */
- o->data[1] = 4; /* length of suboption */
- o->data[2] = (original_sw_if_index >> 24) & 0xFF;
- o->data[3] = (original_sw_if_index >> 16) & 0xFF;
- o->data[4] = (original_sw_if_index >> 8) & 0xFF;
- o->data[5] = (original_sw_if_index >> 0) & 0xFF;
- o->data[6] = 5; /* suboption 5 (client RX intfc address) */
- o->data[7] = 4; /* length 4 */
- o->data[8] = ia0->as_u8[0];
- o->data[9] = ia0->as_u8[1];
- o->data[10] = ia0->as_u8[2];
- o->data[11] = ia0->as_u8[3];
- o->data[12] = 0xFF;
- if (opt82_oui !=0 || opt82_fib_id != 0)
- {
- o->data[12] = 151; /* vss suboption */
- if (255 == opt82_fib_id) {
- o->data[13] = 1; /* length */
- o->data[14] = 255; /* vss option type */
- o->data[15] = 152; /* vss control suboption */
- o->data[16] = 0; /* length */
- /* and a new "end-of-options" option (0xff) */
- o->data[17] = 0xFF;
- o->length += 5;
- } else {
- o->data[13] = 8; /* length */
- o->data[14] = 1; /* vss option type */
- o->data[15] = (opt82_oui >> 16) & 0xff;
- o->data[16] = (opt82_oui >> 8) & 0xff;
- o->data[17] = (opt82_oui ) & 0xff;
- o->data[18] = (opt82_fib_id >> 24) & 0xff;
- o->data[19] = (opt82_fib_id >> 16) & 0xff;
- o->data[20] = (opt82_fib_id >> 8) & 0xff;
- o->data[21] = (opt82_fib_id) & 0xff;
- o->data[22] = 152; /* vss control suboption */
- o->data[23] = 0; /* length */
+ if (ia0 == 0)
+ {
+ error0 = DHCP_PROXY_ERROR_NO_INTERFACE_ADDRESS;
+ next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_DROP;
+ pkts_no_interface_address++;
+ goto do_trace;
+ }
+
+ /* Add option 82 */
+ o->option = 82; /* option 82 */
+ o->length = 12; /* 12 octets to follow */
+ o->data[0] = 1; /* suboption 1, circuit ID (=FIB id) */
+ o->data[1] = 4; /* length of suboption */
+ o->data[2] = (original_sw_if_index >> 24) & 0xFF;
+ o->data[3] = (original_sw_if_index >> 16) & 0xFF;
+ o->data[4] = (original_sw_if_index >> 8) & 0xFF;
+ o->data[5] = (original_sw_if_index >> 0) & 0xFF;
+ o->data[6] = 5; /* suboption 5 (client RX intfc address) */
+ o->data[7] = 4; /* length 4 */
+ o->data[8] = ia0->as_u8[0];
+ o->data[9] = ia0->as_u8[1];
+ o->data[10] = ia0->as_u8[2];
+ o->data[11] = ia0->as_u8[3];
+ o->data[12] = 0xFF;
+
+ vss = dhcp_get_vss_info (dpm, fib_index);
+ if (NULL != vss)
+ {
+ u32 opt82_fib_id=0, opt82_oui=0;
+
+ opt82_oui = vss->vpn_id.oui;
+ opt82_fib_id = vss->vpn_id.fib_id;
+
+ o->data[12] = 151; /* vss suboption */
+ if (255 == opt82_fib_id) {
+ o->data[13] = 1; /* length */
+ o->data[14] = 255; /* vss option type */
+ o->data[15] = 152; /* vss control suboption */
+ o->data[16] = 0; /* length */
+ /* and a new "end-of-options" option (0xff) */
+ o->data[17] = 0xFF;
+ o->length += 5;
+ } else {
+ o->data[13] = 8; /* length */
+ o->data[14] = 1; /* vss option type */
+ o->data[15] = (opt82_oui >> 16) & 0xff;
+ o->data[16] = (opt82_oui >> 8) & 0xff;
+ o->data[17] = (opt82_oui ) & 0xff;
+ o->data[18] = (opt82_fib_id >> 24) & 0xff;
+ o->data[19] = (opt82_fib_id >> 16) & 0xff;
+ o->data[20] = (opt82_fib_id >> 8) & 0xff;
+ o->data[21] = (opt82_fib_id) & 0xff;
+ o->data[22] = 152; /* vss control suboption */
+ o->data[23] = 0; /* length */
- /* and a new "end-of-options" option (0xff) */
- o->data[24] = 0xFF;
- o->length += 12;
- }
+ /* and a new "end-of-options" option (0xff) */
+ o->data[24] = 0xFF;
+ o->length += 12;
}
-
- len = o->length + 3;
- b0->current_length += len;
- /* Fix IP header length and checksum */
- old_l0 = ip0->length;
- new_l0 = clib_net_to_host_u16 (old_l0);
- new_l0 += len;
- new_l0 = clib_host_to_net_u16 (new_l0);
- ip0->length = new_l0;
- sum0 = ip0->checksum;
- sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
- length /* changed member */);
- ip0->checksum = ip_csum_fold (sum0);
-
- /* Fix UDP length */
- new_l0 = clib_net_to_host_u16 (u0->length);
- new_l0 += len;
- u0->length = clib_host_to_net_u16 (new_l0);
- } else {
- vlib_node_increment_counter
- (vm, dhcp_proxy_to_server_node.index,
- DHCP_PROXY_ERROR_OPTION_82_ERROR, 1);
- }
- }
+ }
+
+ len = o->length + 3;
+ b0->current_length += len;
+ /* Fix IP header length and checksum */
+ old_l0 = ip0->length;
+ new_l0 = clib_net_to_host_u16 (old_l0);
+ new_l0 += len;
+ new_l0 = clib_host_to_net_u16 (new_l0);
+ ip0->length = new_l0;
+ sum0 = ip0->checksum;
+ sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
+ length /* changed member */);
+ ip0->checksum = ip_csum_fold (sum0);
+
+ /* Fix UDP length */
+ new_l0 = clib_net_to_host_u16 (u0->length);
+ new_l0 += len;
+ u0->length = clib_host_to_net_u16 (new_l0);
+ } else {
+ vlib_node_increment_counter
+ (vm, dhcp_proxy_to_server_node.index,
+ DHCP_PROXY_ERROR_OPTION_82_ERROR, 1);
+ }
next0 = DHCP_PROXY_TO_SERVER_INPUT_NEXT_LOOKUP;
@@ -451,11 +472,13 @@ dhcp_proxy_to_client_input (vlib_main_t * vm,
vnet_sw_interface_t *si0;
u32 error0 = (u32)~0;
vnet_sw_interface_t *swif;
- u32 server_index;
u32 fib_index;
dhcp_server_t * server;
u32 original_sw_if_index = (u32) ~0;
-
+ ip4_address_t relay_addr = {
+ .as_u32 = 0,
+ };
+
bi0 = from[0];
from += 1;
n_left_from -= 1;
@@ -501,13 +524,21 @@ dhcp_proxy_to_client_input (vlib_main_t * vm,
and the sw_if_index */
if (sub->option == 1 && sub->length == 4)
{
- sw_if_index = (o->data[2] << 24)
- | (o->data[3] << 16)
- | (o->data[4] << 8)
- | (o->data[5]);
- } else if (sub->option == 151 &&
- sub->length == 7 &&
- sub->data[0] == 1)
+ sw_if_index = ((sub->data[0] << 24) |
+ (sub->data[1] << 16) |
+ (sub->data[2] << 8) |
+ (sub->data[3]));
+ }
+ else if (sub->option == 5 && sub->length == 4)
+ {
+ relay_addr.as_u8[0] = sub->data[0];
+ relay_addr.as_u8[1] = sub->data[1];
+ relay_addr.as_u8[2] = sub->data[2];
+ relay_addr.as_u8[3] = sub->data[3];
+ }
+ else if (sub->option == 151 &&
+ sub->length == 7 &&
+ sub->data[0] == 1)
vss_exist = 1;
else if (sub->option == 152 && sub->length == 0)
vss_ctrl = 1;
@@ -539,34 +570,27 @@ dhcp_proxy_to_client_input (vlib_main_t * vm,
goto do_trace;
}
+ if (relay_addr.as_u32 == 0)
+ {
+ error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ADDR;
+ goto drop_packet;
+ }
if (sw_if_index >= vec_len (im->fib_index_by_sw_if_index))
{
- error0 = DHCP_PROXY_ERROR_BAD_OPTION_82;
+ error0 = DHCP_PROXY_ERROR_BAD_OPTION_82_ITF;
goto drop_packet;
}
fib_index = im->fib_index_by_sw_if_index [sw_if_index];
+ server = dhcp_get_server(dpm, fib_index);
- if (fib_index < vec_len(dpm->dhcp_server_index_by_rx_fib_index))
- server_index = dpm->dhcp_server_index_by_rx_fib_index[fib_index];
- else
- server_index = 0;
-
- if (PREDICT_FALSE (pool_is_free_index (dpm->dhcp_servers,
- server_index)))
- {
- error0 = DHCP_PROXY_ERROR_BAD_OPTION_82;
- goto drop_packet;
- }
-
- server = pool_elt_at_index (dpm->dhcp_servers, server_index);
- if (server->valid == 0)
+ if (PREDICT_FALSE (NULL == server))
{
error0 = DHCP_PROXY_ERROR_NO_SERVER;
goto drop_packet;
}
-
+
if (ip0->src_address.as_u32 != server->dhcp_server.as_u32)
{
error0 = DHCP_PROXY_ERROR_BAD_SVR_FIB_OR_ADDRESS;
@@ -587,6 +611,12 @@ dhcp_proxy_to_client_input (vlib_main_t * vm,
goto drop_packet;
}
+ if (relay_addr.as_u32 != ia0->as_u32)
+ {
+ error0 = DHCP_PROXY_ERROR_BAD_YIADDR;
+ goto drop_packet;
+ }
+
u0->checksum = 0;
u0->dst_port = clib_net_to_host_u16 (UDP_DST_PORT_dhcp_to_client);
sum0 = ip0->checksum;
@@ -677,7 +707,7 @@ clib_error_t * dhcp_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->opt82vss_index_by_vrf_id = hash_create (0, sizeof (uword));
+ dm->vss_index_by_rx_fib_index = NULL;
udp_register_dst_port (vm, UDP_DST_PORT_dhcp_to_client,
dhcp_proxy_to_client_node.index, 1 /* is_ip4 */);
@@ -694,15 +724,17 @@ clib_error_t * dhcp_proxy_init (vlib_main_t * vm)
VLIB_INIT_FUNCTION (dhcp_proxy_init);
-int dhcp_proxy_set_server_2 (ip4_address_t *addr, ip4_address_t *src_address,
- u32 rx_fib_id,
- u32 server_fib_id,
- int insert_option_82, int is_del)
+int dhcp_proxy_set_server (ip4_address_t *addr,
+ ip4_address_t *src_address,
+ u32 rx_fib_id,
+ u32 server_fib_id,
+ int is_del)
{
dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
dhcp_server_t * server = 0;
u32 server_index = 0;
u32 rx_fib_index = 0;
+
const fib_prefix_t all_1s =
{
.fp_len = 32,
@@ -719,97 +751,68 @@ int dhcp_proxy_set_server_2 (ip4_address_t *addr, ip4_address_t *src_address,
rx_fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4,
rx_fib_id);
- if (rx_fib_id == 0)
- {
- server = pool_elt_at_index (dpm->dhcp_servers, 0);
-
- if (is_del)
- {
- memset (server, 0, sizeof (*server));
- fib_table_entry_special_remove(rx_fib_index,
- &all_1s,
- FIB_SOURCE_DHCP);
- return 0;
- }
- if (!server->valid)
- fib_table_entry_special_add(rx_fib_index,
- &all_1s,
- FIB_SOURCE_DHCP,
- FIB_ENTRY_FLAG_LOCAL,
- ADJ_INDEX_INVALID);
-
- goto initialize_it;
- }
-
if (is_del)
{
if (rx_fib_index >= vec_len(dpm->dhcp_server_index_by_rx_fib_index))
return VNET_API_ERROR_NO_SUCH_ENTRY;
server_index = dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index];
- ASSERT(server_index > 0);
+
+ if (server_index == ~0)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
/* Use the default server again. */
- dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index] = 0;
+ dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index] = ~0;
server = pool_elt_at_index (dpm->dhcp_servers, server_index);
- memset (server, 0, sizeof (*server));
- pool_put (dpm->dhcp_servers, server);
fib_table_entry_special_remove(rx_fib_index,
&all_1s,
FIB_SOURCE_DHCP);
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP4);
+ fib_table_unlock (server->server_fib_index,
+ FIB_PROTOCOL_IP4);
+ memset (server, 0, sizeof (*server));
+ pool_put (dpm->dhcp_servers, server);
return 0;
}
-
- if (rx_fib_index < vec_len(dpm->dhcp_server_index_by_rx_fib_index))
- {
- server_index = dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index];
- if (server_index != 0)
- {
- server = pool_elt_at_index (dpm->dhcp_servers, server_index);
- goto initialize_it;
- }
- }
-
- pool_get (dpm->dhcp_servers, server);
-
- fib_table_entry_special_add(rx_fib_index,
- &all_1s,
- FIB_SOURCE_DHCP,
- FIB_ENTRY_FLAG_LOCAL,
- ADJ_INDEX_INVALID);
-
- initialize_it:
-
-
- server->dhcp_server.as_u32 = addr->as_u32;
- server->server_fib_index =
- fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4,
- server_fib_id);
- server->dhcp_src_address.as_u32 = src_address->as_u32;
- server->insert_option_82 = insert_option_82;
- server->valid = 1;
- if (rx_fib_index)
- {
- vec_validate (dpm->dhcp_server_index_by_rx_fib_index, rx_fib_index);
+ else
+ {
+ vec_validate_init_empty(dpm->dhcp_server_index_by_rx_fib_index,
+ rx_fib_index,
+ ~0);
+
+ pool_get (dpm->dhcp_servers, server);
+
+ server->dhcp_server.as_u32 = addr->as_u32;
+ server->dhcp_src_address.as_u32 = src_address->as_u32;
+
+ fib_table_entry_special_add(rx_fib_index,
+ &all_1s,
+ FIB_SOURCE_DHCP,
+ FIB_ENTRY_FLAG_LOCAL,
+ ADJ_INDEX_INVALID);
+ fib_table_lock (rx_fib_index,
+ FIB_PROTOCOL_IP4);
+
+ server->server_fib_index =
+ fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4,
+ server_fib_id);
+
+ vec_validate_init_empty (dpm->dhcp_server_index_by_rx_fib_index,
+ rx_fib_index,
+ ~0);
dpm->dhcp_server_index_by_rx_fib_index[rx_fib_index] =
- server - dpm->dhcp_servers;
- }
+ server - dpm->dhcp_servers;
+ }
- return 0;
-}
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP4);
-/* Old API, manipulates the default server (only) */
-int dhcp_proxy_set_server (ip4_address_t *addr, ip4_address_t *src_address,
- u32 fib_id, int insert_option_82, int is_del)
-{
- return dhcp_proxy_set_server_2 (addr, src_address, 0 /* rx_fib_id */,
- fib_id /* server_fib_id */,
- insert_option_82, is_del);
+ return 0;
}
-
static clib_error_t *
dhcp_proxy_set_command_fn (vlib_main_t * vm,
unformat_input_t * input,
@@ -818,7 +821,6 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm,
ip4_address_t server_addr, src_addr;
u32 server_fib_id = 0, rx_fib_id = 0;
int is_del = 0;
- int add_option_82 = 0;
int set_src = 0, set_server = 0;
while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
@@ -833,9 +835,6 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm,
else if (unformat(input, "src-address %U",
unformat_ip4_address, &src_addr))
set_src = 1;
- else if (unformat (input, "add-option-82")
- || unformat (input, "insert-option-82"))
- add_option_82 = 1;
else if (unformat (input, "delete") ||
unformat (input, "del"))
is_del = 1;
@@ -847,8 +846,8 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm,
{
int rv;
- rv = dhcp_proxy_set_server_2 (&server_addr, &src_addr, rx_fib_id,
- server_fib_id, add_option_82, is_del);
+ rv = dhcp_proxy_set_server (&server_addr, &src_addr, rx_fib_id,
+ server_fib_id, is_del);
switch (rv)
{
case 0:
@@ -882,7 +881,7 @@ dhcp_proxy_set_command_fn (vlib_main_t * vm,
VLIB_CLI_COMMAND (dhcp_proxy_set_command, static) = {
.path = "set dhcp proxy",
- .short_help = "set dhcp proxy [del] server <ip-addr> src-address <ip-addr> [add-option-82] [server-fib-id <n>] [rx-fib-id <n>]",
+ .short_help = "set dhcp proxy [del] server <ip-addr> src-address <ip-addr> [server-fib-id <n>] [rx-fib-id <n>]",
.function = dhcp_proxy_set_command_fn,
};
@@ -896,8 +895,8 @@ u8 * format_dhcp_proxy_server (u8 * s, va_list * args)
if (dm == 0)
{
- s = format (s, "%=16s%=16s%=14s%=14s%=20s", "Server", "Src Address",
- "Server FIB", "RX FIB", "Insert Option 82");
+ s = format (s, "%=16s%=16s%=14s%=14s", "Server", "Src Address",
+ "Server FIB", "RX FIB");
return s;
}
@@ -911,11 +910,10 @@ u8 * format_dhcp_proxy_server (u8 * s, va_list * args)
if (rx_fib)
rx_fib_id = rx_fib->table_id;
- s = format (s, "%=16U%=16U%=14u%=14u%=20s",
+ s = format (s, "%=16U%=16U%=14u%=14u",
format_ip4_address, &server->dhcp_server,
format_ip4_address, &server->dhcp_src_address,
- server_fib_id, rx_fib_id,
- server->insert_option_82 ? "yes" : "no");
+ server_fib_id, rx_fib_id);
return s;
}
@@ -925,24 +923,22 @@ dhcp_proxy_show_command_fn (vlib_main_t * vm,
vlib_cli_command_t * cmd)
{
dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
- ip4_main_t * im = &ip4_main;
dhcp_server_t * server;
- u32 server_index;
- int i;
+ u32 server_index, i;
vlib_cli_output (vm, "%U", format_dhcp_proxy_server, 0 /* header line */,
0, 0);
- for (i = 0; i < vec_len (im->fibs); i++)
- {
- if (i < vec_len(dpm->dhcp_server_index_by_rx_fib_index))
- server_index = dpm->dhcp_server_index_by_rx_fib_index[i];
- else
- server_index = 0;
+ vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index)
+ {
+ server_index = dpm->dhcp_server_index_by_rx_fib_index[i];
+ if (~0 == server_index)
+ continue;
+
server = pool_elt_at_index (dpm->dhcp_servers, server_index);
- if (server->valid)
- vlib_cli_output (vm, "%U", format_dhcp_proxy_server, dpm,
- server, i);
+
+ vlib_cli_output (vm, "%U", format_dhcp_proxy_server, dpm,
+ server, i);
}
return 0;
@@ -954,50 +950,104 @@ VLIB_CLI_COMMAND (dhcp_proxy_show_command, static) = {
.function = dhcp_proxy_show_command_fn,
};
+void
+dhcp_proxy_dump (void *opaque,
+ u32 context)
+{
+ dhcp_proxy_main_t * dpm = &dhcp_proxy_main;
+ ip4_fib_t *s_fib, *r_fib;
+ dhcp_server_t * server;
+ u32 server_index, i;
+ vss_info *v;
+
+ vec_foreach_index (i, dpm->dhcp_server_index_by_rx_fib_index)
+ {
+ server_index = dpm->dhcp_server_index_by_rx_fib_index[i];
+ if (~0 == server_index)
+ continue;
+
+ server = pool_elt_at_index (dpm->dhcp_servers, server_index);
+ v = dhcp_get_vss_info(dpm, i);
+
+ ip46_address_t src_addr = {
+ .ip4 = server->dhcp_src_address,
+ };
+ ip46_address_t server_addr = {
+ .ip4 = server->dhcp_server,
+ };
+
+ s_fib = ip4_fib_get(server->server_fib_index);
+ r_fib = ip4_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 dhcp_proxy_set_option82_vss( u32 vrf_id,
- u32 oui,
- u32 fib_id,
- int is_del)
+int dhcp_proxy_set_option82_vss(u32 tbl_id,
+ u32 oui,
+ u32 fib_id,
+ int is_del)
{
dhcp_proxy_main_t *dm = &dhcp_proxy_main;
- uword *p;
- vss_info *a;
- u32 old_oui=0, old_fib_id=0;
+ vss_info *v = NULL;
+ u32 rx_fib_index;
+ int rc = 0;
- p = hash_get (dm->opt82vss_index_by_vrf_id, vrf_id);
+ rx_fib_index = ip4_fib_table_find_or_create_and_lock(tbl_id);
+ v = dhcp_get_vss_info(dm, rx_fib_index);
- if (p)
- {
- a = pool_elt_at_index (dm->opt82vss, p[0]);
- if (!a)
- return VNET_API_ERROR_NO_SUCH_FIB;
- old_oui = a->vpn_id.oui;
- old_fib_id = a->vpn_id.fib_id;
-
+ if (NULL != v)
+ {
if (is_del)
- {
- if (old_oui == oui &&
- old_fib_id == fib_id)
- {
- pool_put(dm->opt82vss, a);
- hash_unset (dm->opt82vss_index_by_vrf_id, vrf_id);
- return 0;
- }
- else
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- }
- pool_put(dm->opt82vss, a);
- hash_unset (dm->opt82vss_index_by_vrf_id, vrf_id);
- } else if (is_del)
- return VNET_API_ERROR_NO_SUCH_ENTRY;
- pool_get (dm->opt82vss, a);
- memset (a, ~0, sizeof (a[0]));
- a->vpn_id.oui = oui;
- a->vpn_id.fib_id = fib_id;
- hash_set (dm->opt82vss_index_by_vrf_id, vrf_id, a - dm->opt82vss);
+ {
+ /* release the lock held on the table when the VSS
+ * info was created */
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP4);
+
+ 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
+ {
+ /* 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_IP4);
+
+ 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;
+ }
+ }
+
+ /* Release the lock taken during the create_or_lock at the start */
+ fib_table_unlock (rx_fib_index,
+ FIB_PROTOCOL_IP4);
- return 0;
+ return (rc);
}
static clib_error_t *
@@ -1065,20 +1115,20 @@ dhcp_vss_show_command_fn (vlib_main_t * vm,
{
dhcp_proxy_main_t * dm = &dhcp_proxy_main;
+ ip4_fib_t *fib;
+ u32 *fib_index;
vss_info *v;
- u32 oui;
- u32 fib_id;
- u32 tbl_id;
- uword index;
vlib_cli_output (vm, "%=9s%=11s%=12s","Table", "OUI", "VPN-ID");
- hash_foreach (tbl_id, index, dm->opt82vss_index_by_vrf_id,
+ pool_foreach (fib_index, dm->vss_index_by_rx_fib_index,
({
- v = pool_elt_at_index (dm->opt82vss, index);
- oui = v->vpn_id.oui;
- fib_id = v->vpn_id.fib_id;
- vlib_cli_output (vm, "%=9d 0x%08x%=12d",
- tbl_id, oui, fib_id);
+ fib = ip4_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;