* See the License for the specific language governing permissions and
* limitations under the License.
*/
+
#ifndef PACKETS_H
#define PACKETS_H 1
#include "random.h"
#include "util.h"
+struct ofpbuf;
+
+bool dpid_from_string(const char *s, uint64_t *dpidp);
+
#define ETH_ADDR_LEN 6
static const uint8_t eth_addr_broadcast[ETH_ADDR_LEN] UNUSED
return (ea[0] & ea[1] & ea[2] & ea[3] & ea[4] & ea[5]) == 0xff;
}
-/* Returns true if 'ea' is an Ethernet address used for virtual interfaces
- * under XenServer. Generally the actual Ethernet address is FE:FF:FF:FF:FF:FF
- * but it can be FE:FE:FE:FE:FE:FE in some cases. */
-static inline bool eth_addr_is_vif(const uint8_t ea[6])
-{
- return ea[0] == 0xfe && (ea[1] & ea[2] & ea[3] & ea[4] & ea[5]) >= 0xfe;
-}
-
static inline bool eth_addr_is_multicast(const uint8_t ea[6])
{
return ea[0] & 1;
&& (ea[5] & 0xf0) == 0x00);
}
+bool eth_addr_from_string(const char *, uint8_t ea[ETH_ADDR_LEN]);
+
+void compose_benign_packet(struct ofpbuf *, const char *tag,
+ uint16_t snap_type,
+ const uint8_t eth_src[ETH_ADDR_LEN]);
+
+/* Example:
+ *
+ * uint8_t mac[ETH_ADDR_LEN];
+ * [...]
+ * printf("The Ethernet address is "ETH_ADDR_FMT"\n", ETH_ADDR_ARGS(mac));
+ *
+ */
#define ETH_ADDR_FMT \
"%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8":%02"PRIx8
#define ETH_ADDR_ARGS(ea) \
(ea)[0], (ea)[1], (ea)[2], (ea)[3], (ea)[4], (ea)[5]
+/* Example:
+ *
+ * char *string = "1 00:11:22:33:44:55 2";
+ * uint8_t mac[ETH_ADDR_LEN];
+ * int a, b;
+ *
+ * if (sscanf(string, "%d"ETH_ADDR_SCAN_FMT"%d",
+ * &a, ETH_ADDR_SCAN_ARGS(mac), &b) == 1 + ETH_ADDR_SCAN_COUNT + 1) {
+ * ...
+ * }
+ */
+#define ETH_ADDR_SCAN_FMT "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8
+#define ETH_ADDR_SCAN_ARGS(ea) \
+ &(ea)[0], &(ea)[1], &(ea)[2], &(ea)[3], &(ea)[4], &(ea)[5]
+#define ETH_ADDR_SCAN_COUNT 6
+
#define ETH_TYPE_IP 0x0800
#define ETH_TYPE_ARP 0x0806
#define ETH_TYPE_VLAN 0x8100