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[11/13] IPsec example loopback interface DB

Message ID 1408624238-12430-12-git-send-email-robking@cisco.com
State New
Headers show

Commit Message

Robbie King Aug. 21, 2014, 12:30 p.m. UTC 
Signed-off-by: Robbie King <robking@cisco.com>
---
 example/ipsec/odp_ipsec_loop_db.c |   54 ++++++++++++++++
 example/ipsec/odp_ipsec_loop_db.h |  128 +++++++++++++++++++++++++++++++++++++
 2 files changed, 182 insertions(+), 0 deletions(-)
 create mode 100644 example/ipsec/odp_ipsec_loop_db.c
 create mode 100644 example/ipsec/odp_ipsec_loop_db.h
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Patch

diff --git a/example/ipsec/odp_ipsec_loop_db.c b/example/ipsec/odp_ipsec_loop_db.c
new file mode 100644
index 0000000..440aa07
--- /dev/null
+++ b/example/ipsec/odp_ipsec_loop_db.c
@@ -0,0 +1,54 @@ 
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <odp.h>
+#include <odp_align.h>
+#include <odp_crypto.h>
+
+#include <odp_ipsec_loop_db.h>
+
+loopback_db_t *loopback_db;
+
+void init_loopback_db(void)
+{
+	int idx;
+
+	loopback_db = odp_shm_reserve("loopback_db",
+				      sizeof(loopback_db_t),
+				      ODP_CACHE_LINE_SIZE);
+	if (loopback_db == NULL) {
+		ODP_ERR("Error: shared mem alloc failed.\n");
+		exit(EXIT_FAILURE);
+	}
+	memset(loopback_db, 0, sizeof(*loopback_db));
+
+	for (idx = 0; idx < MAX_LOOPBACK; idx++) {
+		loopback_db->intf[idx].inq_def = ODP_QUEUE_INVALID;
+		loopback_db->intf[idx].outq_def = ODP_QUEUE_INVALID;
+	}
+}
+
+void create_loopback_db_entry(int idx,
+			      odp_queue_t inq_def,
+			      odp_queue_t outq_def,
+			      odp_buffer_pool_t pkt_pool)
+{
+	loopback_db_entry_t *entry = &loopback_db->intf[idx];
+
+	/* Save queues */
+	entry->inq_def = inq_def;
+	entry->outq_def = outq_def;
+	entry->pkt_pool = pkt_pool;
+
+	/* Create dummy MAC address */
+	memset(entry->mac, (0xF0 | idx), sizeof(entry->mac));
+}
+
+
+
diff --git a/example/ipsec/odp_ipsec_loop_db.h b/example/ipsec/odp_ipsec_loop_db.h
new file mode 100644
index 0000000..3b6c864
--- /dev/null
+++ b/example/ipsec/odp_ipsec_loop_db.h
@@ -0,0 +1,128 @@ 
+/* Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+#ifndef ODP_IPSEC_LOOP_DB_H_
+#define ODP_IPSEC_LOOP_DB_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp.h>
+#include <odp_ipsec_misc.h>
+
+/**
+ * Loopback database entry structure
+ */
+typedef struct loopback_db_entry_s {
+	odp_queue_t       inq_def;
+	odp_queue_t       outq_def;
+	odp_buffer_pool_t pkt_pool;
+	uint8_t           mac[6];
+} loopback_db_entry_t;
+
+typedef struct loopback_db_s {
+	loopback_db_entry_t  intf[MAX_LOOPBACK];
+} loopback_db_t;
+
+extern loopback_db_t *loopback_db;
+
+/** Initialize loopback database global control structure */
+void init_loopback_db(void);
+
+/**
+ * Create loopback DB entry for an interface
+ *
+ * Loopback interfaces are specified from command line with
+ * an index 0-9.
+ *
+ * @param idx      Index of interface in database
+ * @param inq_def  Input queue
+ * @param outq_def Output queue
+ * @param pkt_pool Pool to create packets from
+ */
+void create_loopback_db_entry(int idx,
+			      odp_queue_t inq_def,
+			      odp_queue_t outq_def,
+			      odp_buffer_pool_t pkt_pool);
+
+/**
+ * Parse loop interface index
+ *
+ * @param b     Pointer to buffer to parse
+ *
+ * @return interface index (0 to (MAX_LOOPBACK - 1)) else -1
+ */
+static inline
+int loop_if_index(char *b)
+{
+	int ret;
+	int idx;
+
+	/* Derive loopback interface index */
+	ret = sscanf(b, "loop%d", &idx);
+	if ((1 != ret) || (idx < 0) || (idx >= MAX_LOOPBACK))
+		return -1;
+	return idx;
+}
+
+/**
+ * Query loopback DB entry MAC address
+ *
+ * @param idx     Loopback DB index of the interface
+ *
+ * @return MAC address pointer
+ */
+static inline
+uint8_t *query_loopback_db_mac(int idx)
+{
+	return loopback_db->intf[idx].mac;
+}
+
+/**
+ * Query loopback DB entry input queue
+ *
+ * @param idx     Loopback DB index of the interface
+ *
+ * @return ODP queue
+ */
+static inline
+odp_queue_t query_loopback_db_inq(int idx)
+{
+	return loopback_db->intf[idx].inq_def;
+}
+
+/**
+ * Query loopback DB entry output queue
+ *
+ * @param idx     Loopback DB index of the interface
+ *
+ * @return ODP queue
+ */
+static inline
+odp_queue_t query_loopback_db_outq(int idx)
+{
+	return loopback_db->intf[idx].outq_def;
+}
+
+/**
+ * Query loopback DB entry packet pool
+ *
+ * @param idx     Loopback DB index of the interface
+ *
+ * @return ODP buffer pool
+ */
+static inline
+odp_buffer_pool_t query_loopback_db_pkt_pool(int idx)
+{
+	return loopback_db->intf[idx].pkt_pool;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif