summaryrefslogtreecommitdiffstats
path: root/src/vat/plugin_api.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vat/plugin_api.c')
-rw-r--r--src/vat/plugin_api.c216
1 files changed, 216 insertions, 0 deletions
diff --git a/src/vat/plugin_api.c b/src/vat/plugin_api.c
new file mode 100644
index 00000000000..4e1eb897844
--- /dev/null
+++ b/src/vat/plugin_api.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vat/vat.h>
+#include <vnet/ip/ip.h>
+
+uword
+unformat_sw_if_index (unformat_input_t * input, va_list * args)
+{
+ vat_main_t *vam = va_arg (*args, vat_main_t *);
+ u32 *result = va_arg (*args, u32 *);
+ u8 *if_name;
+ uword *p;
+
+ if (!unformat (input, "%s", &if_name))
+ return 0;
+
+ p = hash_get_mem (vam->sw_if_index_by_interface_name, if_name);
+ if (p == 0)
+ return 0;
+ *result = p[0];
+ return 1;
+}
+
+/* Parse an IP4 address %d.%d.%d.%d. */
+uword
+unformat_ip4_address (unformat_input_t * input, va_list * args)
+{
+ u8 *result = va_arg (*args, u8 *);
+ unsigned a[4];
+
+ if (!unformat (input, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]))
+ return 0;
+
+ if (a[0] >= 256 || a[1] >= 256 || a[2] >= 256 || a[3] >= 256)
+ return 0;
+
+ result[0] = a[0];
+ result[1] = a[1];
+ result[2] = a[2];
+ result[3] = a[3];
+
+ return 1;
+}
+
+uword
+unformat_ethernet_address (unformat_input_t * input, va_list * args)
+{
+ u8 *result = va_arg (*args, u8 *);
+ u32 i, a[6];
+
+ if (!unformat (input, "%_%x:%x:%x:%x:%x:%x%_",
+ &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]))
+ return 0;
+
+ /* Check range. */
+ for (i = 0; i < 6; i++)
+ if (a[i] >= (1 << 8))
+ return 0;
+
+ for (i = 0; i < 6; i++)
+ result[i] = a[i];
+
+ return 1;
+}
+
+/* Returns ethernet type as an int in host byte order. */
+uword
+unformat_ethernet_type_host_byte_order (unformat_input_t * input,
+ va_list * args)
+{
+ u16 *result = va_arg (*args, u16 *);
+ int type;
+
+ /* Numeric type. */
+ if (unformat (input, "0x%x", &type) || unformat (input, "%d", &type))
+ {
+ if (type >= (1 << 16))
+ return 0;
+ *result = type;
+ return 1;
+ }
+ return 0;
+}
+
+/* Parse an IP6 address. */
+uword
+unformat_ip6_address (unformat_input_t * input, va_list * args)
+{
+ ip6_address_t *result = va_arg (*args, ip6_address_t *);
+ u16 hex_quads[8];
+ uword hex_quad, n_hex_quads, hex_digit, n_hex_digits;
+ uword c, n_colon, double_colon_index;
+
+ n_hex_quads = hex_quad = n_hex_digits = n_colon = 0;
+ double_colon_index = ARRAY_LEN (hex_quads);
+ while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT)
+ {
+ hex_digit = 16;
+ if (c >= '0' && c <= '9')
+ hex_digit = c - '0';
+ else if (c >= 'a' && c <= 'f')
+ hex_digit = c + 10 - 'a';
+ else if (c >= 'A' && c <= 'F')
+ hex_digit = c + 10 - 'A';
+ else if (c == ':' && n_colon < 2)
+ n_colon++;
+ else
+ {
+ unformat_put_input (input);
+ break;
+ }
+
+ /* Too many hex quads. */
+ if (n_hex_quads >= ARRAY_LEN (hex_quads))
+ return 0;
+
+ if (hex_digit < 16)
+ {
+ hex_quad = (hex_quad << 4) | hex_digit;
+
+ /* Hex quad must fit in 16 bits. */
+ if (n_hex_digits >= 4)
+ return 0;
+
+ n_colon = 0;
+ n_hex_digits++;
+ }
+
+ /* Save position of :: */
+ if (n_colon == 2)
+ {
+ /* More than one :: ? */
+ if (double_colon_index < ARRAY_LEN (hex_quads))
+ return 0;
+ double_colon_index = n_hex_quads;
+ }
+
+ if (n_colon > 0 && n_hex_digits > 0)
+ {
+ hex_quads[n_hex_quads++] = hex_quad;
+ hex_quad = 0;
+ n_hex_digits = 0;
+ }
+ }
+
+ if (n_hex_digits > 0)
+ hex_quads[n_hex_quads++] = hex_quad;
+
+ {
+ word i;
+
+ /* Expand :: to appropriate number of zero hex quads. */
+ if (double_colon_index < ARRAY_LEN (hex_quads))
+ {
+ word n_zero = ARRAY_LEN (hex_quads) - n_hex_quads;
+
+ for (i = n_hex_quads - 1; i >= (signed) double_colon_index; i--)
+ hex_quads[n_zero + i] = hex_quads[i];
+
+ for (i = 0; i < n_zero; i++)
+ hex_quads[double_colon_index + i] = 0;
+
+ n_hex_quads = ARRAY_LEN (hex_quads);
+ }
+
+ /* Too few hex quads given. */
+ if (n_hex_quads < ARRAY_LEN (hex_quads))
+ return 0;
+
+ for (i = 0; i < ARRAY_LEN (hex_quads); i++)
+ result->as_u16[i] = clib_host_to_net_u16 (hex_quads[i]);
+
+ return 1;
+ }
+}
+
+u8 *
+format_ip4_address (u8 * s, va_list * args)
+{
+ u8 *a = va_arg (*args, u8 *);
+ return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
+}
+
+u8 *
+format_ethernet_address (u8 * s, va_list * args)
+{
+ u8 *a = va_arg (*args, u8 *);
+
+ return format (s, "%02x:%02x:%02x:%02x:%02x:%02x",
+ a[0], a[1], a[2], a[3], a[4], a[5]);
+}
+
+void
+vat_plugin_api_reference (void)
+{
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */