l2fib: MAC: Fix uint64 to u8 byte array
As per proposal on the mailing list, this patch fixes
the represntation of MAC address in VPP API calls for
· L2fib_add_del
· L2_fib_table_details
Change-Id: I31e17efd1a6314cded69666e693cb8fc33158d02
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
diff --git a/src/vnet/l2/l2.api b/src/vnet/l2/l2.api
index 1838365..404a478 100644
--- a/src/vnet/l2/l2.api
+++ b/src/vnet/l2/l2.api
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-vl_api_version 1.0.0
+vl_api_version 2.0.0
/** \brief Reply to l2_xconnect_dump
@param context - sender context which was passed in the request
@@ -50,7 +50,7 @@
{
u32 context;
u32 bd_id;
- u64 mac;
+ u8 mac[6];
u32 sw_if_index;
u8 static_mac;
u8 filter_mac;
@@ -126,7 +126,7 @@
{
u32 client_index;
u32 context;
- u64 mac;
+ u8 mac[6];
u32 bd_id;
u32 sw_if_index;
u8 is_add;
diff --git a/src/vnet/l2/l2_api.c b/src/vnet/l2/l2_api.c
index 20d6ab3..8fd94b0 100644
--- a/src/vnet/l2/l2_api.c
+++ b/src/vnet/l2/l2_api.c
@@ -133,7 +133,7 @@
mp->bd_id =
ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id);
- mp->mac = l2fib_make_key (l2fe_key->fields.mac, 0);
+ clib_memcpy (mp->mac, l2fe_key->fields.mac, 6);
mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index);
mp->static_mac = l2fe_res->fields.static_mac;
mp->filter_mac = l2fe_res->fields.filter;
@@ -199,7 +199,9 @@
}
u32 bd_index = p[0];
- u64 mac = mp->mac;
+ u8 mac[6];
+
+ clib_memcpy (mac, mp->mac, 6);
if (mp->is_add)
{
if (mp->filter_mac)
diff --git a/src/vnet/l2/l2_fib.c b/src/vnet/l2/l2_fib.c
index 0ad56f3..9e095d2 100644
--- a/src/vnet/l2/l2_fib.c
+++ b/src/vnet/l2/l2_fib.c
@@ -54,6 +54,17 @@
l2fib_main_t l2fib_main;
+static void
+incr_mac_address (u8 * mac)
+{
+ u64 tmp = *((u64 *) mac);
+ tmp = clib_net_to_host_u64 (tmp);
+ tmp += 1 << 16; /* skip unused (least significant) octets */
+ tmp = clib_host_to_net_u64 (tmp);
+
+ clib_memcpy (mac, &tmp, 6);
+}
+
/** Format sw_if_index. If the value is ~0, use the text "N/A" */
u8 *
format_vnet_sw_if_index_name_with_NA (u8 * s, va_list * args)
@@ -342,7 +353,7 @@
* If the entry already exists then overwrite it
*/
void
-l2fib_add_entry (u64 mac, u32 bd_index,
+l2fib_add_entry (u8 * mac, u32 bd_index,
u32 sw_if_index, u8 static_mac, u8 filter_mac, u8 bvi_mac)
{
l2fib_entry_key_t key;
@@ -353,7 +364,7 @@
BVT (clib_bihash_kv) kv;
/* set up key */
- key.raw = l2fib_make_key ((u8 *) & mac, bd_index);
+ key.raw = l2fib_make_key (mac, bd_index);
/* check if entry alread exist */
if (BV (clib_bihash_search) (&fm->mac_table, &kv, &kv))
@@ -392,7 +403,7 @@
bd_main_t *bdm = &bd_main;
vnet_main_t *vnm = vnet_get_main ();
clib_error_t *error = 0;
- u64 mac;
+ u8 mac[6];
u32 bd_id;
u32 bd_index;
u32 sw_if_index = ~0;
@@ -401,7 +412,7 @@
u32 bvi_mac = 0;
uword *p;
- if (!unformat_user (input, unformat_ethernet_address, &mac))
+ if (!unformat (input, "%U", unformat_ethernet_address, mac))
{
error = clib_error_return (0, "expected mac address `%U'",
format_unformat_error, input);
@@ -507,7 +518,7 @@
unformat_input_t * input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
- u64 mac, save_mac;
+ u8 mac[6], save_mac[6];
u32 bd_index = 0;
u32 sw_if_index = 8;
u32 bvi_mac = 0;
@@ -520,7 +531,7 @@
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "mac %U", unformat_ethernet_address, &mac))
+ if (unformat (input, "mac %U", unformat_ethernet_address, mac))
mac_set = 1;
else if (unformat (input, "add"))
is_add = 1;
@@ -541,19 +552,14 @@
return clib_error_return (0,
"noop: pick at least one of (add,del,check)");
- save_mac = mac;
+ clib_memcpy (save_mac, mac, 6);
if (is_add)
{
for (i = 0; i < count; i++)
{
- u64 tmp;
- l2fib_add_fwd_entry (mac, bd_index, sw_if_index, mac, bvi_mac);
- tmp = clib_net_to_host_u64 (mac);
- tmp >>= 16;
- tmp++;
- tmp <<= 16;
- mac = clib_host_to_net_u64 (tmp);
+ l2fib_add_fwd_entry (mac, bd_index, sw_if_index, *mac, bvi_mac);
+ incr_mac_address (mac);
}
}
@@ -562,38 +568,28 @@
BVT (clib_bihash_kv) kv;
l2fib_main_t *mp = &l2fib_main;
- mac = save_mac;
+ clib_memcpy (mac, save_mac, 6);
for (i = 0; i < count; i++)
{
- u64 tmp;
- kv.key = l2fib_make_key ((u8 *) & mac, bd_index);
+ kv.key = l2fib_make_key (mac, bd_index);
if (BV (clib_bihash_search) (&mp->mac_table, &kv, &kv))
{
- clib_warning ("key %U AWOL", format_ethernet_address, &mac);
+ clib_warning ("key %U AWOL", format_ethernet_address, mac);
break;
}
- tmp = clib_net_to_host_u64 (mac);
- tmp >>= 16;
- tmp++;
- tmp <<= 16;
- mac = clib_host_to_net_u64 (tmp);
+ incr_mac_address (mac);
}
}
if (is_del)
{
+ clib_memcpy (mac, save_mac, 6);
+
for (i = 0; i < count; i++)
{
- u64 tmp;
-
l2fib_del_entry (mac, bd_index);
-
- tmp = clib_net_to_host_u64 (mac);
- tmp >>= 16;
- tmp++;
- tmp <<= 16;
- mac = clib_host_to_net_u64 (tmp);
+ incr_mac_address (mac);
}
}
@@ -680,9 +676,9 @@
* Return 0 if the entry was deleted, or 1 if it was not found
*/
u32
-l2fib_del_entry (u64 mac, u32 bd_index)
+l2fib_del_entry (u8 * mac, u32 bd_index)
{
- return l2fib_del_entry_by_key (l2fib_make_key ((u8 *) & mac, bd_index));
+ return l2fib_del_entry_by_key (l2fib_make_key (mac, bd_index));
}
/**
@@ -696,12 +692,12 @@
{
bd_main_t *bdm = &bd_main;
clib_error_t *error = 0;
- u64 mac;
+ u8 mac[6];
u32 bd_id;
u32 bd_index;
uword *p;
- if (!unformat_user (input, unformat_ethernet_address, &mac))
+ if (!unformat (input, "%U", unformat_ethernet_address, mac))
{
error = clib_error_return (0, "expected mac address `%U'",
format_unformat_error, input);
diff --git a/src/vnet/l2/l2_fib.h b/src/vnet/l2/l2_fib.h
index 7cc2dc5..6346826 100644
--- a/src/vnet/l2/l2_fib.h
+++ b/src/vnet/l2/l2_fib.h
@@ -371,24 +371,24 @@
void l2fib_clear_table (void);
void
-l2fib_add_entry (u64 mac,
+l2fib_add_entry (u8 * mac,
u32 bd_index,
u32 sw_if_index, u8 static_mac, u8 drop_mac, u8 bvi_mac);
static inline void
-l2fib_add_fwd_entry (u64 mac, u32 bd_index, u32 sw_if_index, u8 static_mac,
+l2fib_add_fwd_entry (u8 * mac, u32 bd_index, u32 sw_if_index, u8 static_mac,
u8 bvi_mac)
{
l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, 0, bvi_mac);
}
static inline void
-l2fib_add_filter_entry (u64 mac, u32 bd_index)
+l2fib_add_filter_entry (u8 * mac, u32 bd_index)
{
l2fib_add_entry (mac, bd_index, ~0, 1, 1, 0);
}
-u32 l2fib_del_entry (u64 mac, u32 bd_index);
+u32 l2fib_del_entry (u8 * mac, u32 bd_index);
void l2fib_start_ager_scan (vlib_main_t * vm);
diff --git a/src/vnet/l2/l2_input.c b/src/vnet/l2/l2_input.c
index e556b14..f60dd18 100644
--- a/src/vnet/l2/l2_input.c
+++ b/src/vnet/l2/l2_input.c
@@ -550,7 +550,6 @@
l2_output_config_t *out_config;
l2_input_config_t *config;
l2_bridge_domain_t *bd_config;
- u64 mac;
i32 l2_if_adjust = 0;
u32 slot;
@@ -572,8 +571,7 @@
config->bvi = 0;
/* delete the l2fib entry for the bvi interface */
- mac = *((u64 *) hi->hw_address);
- l2fib_del_entry (mac, config->bd_index);
+ l2fib_del_entry (hi->hw_address, config->bd_index);
/* Make loop output node send packet back to ethernet-input node */
slot =
@@ -672,8 +670,7 @@
config->bvi = 1;
/* create the l2fib entry for the bvi interface */
- mac = *((u64 *) hi->hw_address);
- l2fib_add_fwd_entry (mac, bd_index, sw_if_index, 1, 1); /* static + bvi */
+ l2fib_add_fwd_entry (hi->hw_address, bd_index, sw_if_index, 1, 1); /* static + bvi */
/* Disable learning by default. no use since l2fib entry is static. */
config->feature_bitmap &= ~L2INPUT_FEAT_LEARN;