#define TRUNCATED_DIGEST_BYTE_LENGTH_SHA384 (24)
#define TRUNCATED_DIGEST_BYTE_LENGTH_SHA512 (32)
+/**
+ * Write (spread) data from buffer to mbuf data
+ *
+ * @param mbuf
+ * Destination mbuf
+ * @param offset
+ * Start offset in mbuf
+ * @param len
+ * Number of bytes to copy
+ * @param buffer
+ * Continuous source buffer
+ */
+static inline void
+pktmbuf_write(struct rte_mbuf *mbuf, int offset, int len, const uint8_t *buffer)
+{
+ int n = len;
+ int l;
+ struct rte_mbuf *m;
+ char *dst;
+
+ for (m = mbuf; (m != NULL) && (offset > m->data_len); m = m->next)
+ offset -= m->data_len;
+
+ l = m->data_len - offset;
+
+ /* copy data from first segment */
+ dst = rte_pktmbuf_mtod_offset(m, char *, offset);
+ if (len <= l) {
+ rte_memcpy(dst, buffer, len);
+ return;
+ }
+
+ rte_memcpy(dst, buffer, l);
+ buffer += l;
+ n -= l;
+
+ for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
+ dst = rte_pktmbuf_mtod(m, char *);
+ l = m->data_len;
+ if (n < l) {
+ rte_memcpy(dst, buffer, n);
+ return;
+ }
+ rte_memcpy(dst, buffer, l);
+ buffer += l;
+ n -= l;
+ }
+}
+
+static inline uint8_t *
+pktmbuf_mtod_offset(struct rte_mbuf *mbuf, int offset) {
+ struct rte_mbuf *m;
+
+ for (m = mbuf; (m != NULL) && (offset > m->data_len); m = m->next)
+ offset -= m->data_len;
+
+ if (m == NULL) {
+ printf("pktmbuf_mtod_offset: offset out of buffer\n");
+ return NULL;
+ }
+ return rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
+}
+
+static inline phys_addr_t
+pktmbuf_mtophys_offset(struct rte_mbuf *mbuf, int offset) {
+ struct rte_mbuf *m;
+
+ for (m = mbuf; (m != NULL) && (offset > m->data_len); m = m->next)
+ offset -= m->data_len;
+
+ if (m == NULL) {
+ printf("pktmbuf_mtophys_offset: offset out of buffer\n");
+ return 0;
+ }
+ return rte_pktmbuf_mtophys_offset(m, offset);
+}
+
+static inline struct rte_mbuf *
+create_segmented_mbuf(struct rte_mempool *mbuf_pool, int pkt_len,
+ int nb_segs, uint8_t pattern) {
+
+ struct rte_mbuf *m = NULL, *mbuf = NULL;
+ uint8_t *dst;
+ int data_len = 0;
+ int i, size;
+ int t_len;
+
+ if (pkt_len < 1) {
+ printf("Packet size must be 1 or more (is %d)\n", pkt_len);
+ return NULL;
+ }
+
+ if (nb_segs < 1) {
+ printf("Number of segments must be 1 or more (is %d)\n",
+ nb_segs);
+ return NULL;
+ }
+
+ t_len = pkt_len >= nb_segs ? pkt_len / nb_segs : 1;
+ size = pkt_len;
+
+ /* Create chained mbuf_src and fill it generated data */
+ for (i = 0; size > 0; i++) {
+
+ m = rte_pktmbuf_alloc(mbuf_pool);
+ if (i == 0)
+ mbuf = m;
+
+ if (m == NULL) {
+ printf("Cannot create segment for source mbuf");
+ goto fail;
+ }
+
+ /* Make sure if tailroom is zeroed */
+ memset(m->buf_addr, pattern, m->buf_len);
+
+ data_len = size > t_len ? t_len : size;
+ dst = (uint8_t *)rte_pktmbuf_append(m, data_len);
+ if (dst == NULL) {
+ printf("Cannot append %d bytes to the mbuf\n",
+ data_len);
+ goto fail;
+ }
+
+ if (mbuf != m)
+ rte_pktmbuf_chain(mbuf, m);
+
+ size -= data_len;
+
+ }
+ return mbuf;
+
+fail:
+ if (mbuf)
+ rte_pktmbuf_free(mbuf);
+ return NULL;
+}
+
#endif /* TEST_CRYPTODEV_H_ */