+
+static inline bool ofpbuf_equal(const struct ofpbuf *a, const struct ofpbuf *b)
+{
+ return ofpbuf_size(a) == ofpbuf_size(b) &&
+ memcmp(ofpbuf_data(a), ofpbuf_data(b), ofpbuf_size(a)) == 0;
+}
+
+/* Get the start if the Ethernet frame. 'l3_ofs' marks the end of the l2
+ * headers, so return NULL if it is not set. */
+static inline void * ofpbuf_l2(const struct ofpbuf *b)
+{
+ return (b->l3_ofs != UINT16_MAX) ? b->frame : NULL;
+}
+
+/* Sets the packet frame start pointer and resets all layer offsets.
+ * l3 offset must be set before 'l2' can be retrieved. */
+static inline void ofpbuf_set_frame(struct ofpbuf *b, void *packet)
+{
+ b->frame = packet;
+ b->l2_5_ofs = UINT16_MAX;
+ b->l3_ofs = UINT16_MAX;
+ b->l4_ofs = UINT16_MAX;
+}
+
+static inline void * ofpbuf_l2_5(const struct ofpbuf *b)
+{
+ return b->l2_5_ofs != UINT16_MAX ? (char *)b->frame + b->l2_5_ofs : NULL;
+}
+
+static inline void ofpbuf_set_l2_5(struct ofpbuf *b, void *l2_5)
+{
+ b->l2_5_ofs = l2_5 ? (char *)l2_5 - (char *)b->frame : UINT16_MAX;
+}
+
+static inline void * ofpbuf_l3(const struct ofpbuf *b)
+{
+ return b->l3_ofs != UINT16_MAX ? (char *)b->frame + b->l3_ofs : NULL;
+}
+
+static inline void ofpbuf_set_l3(struct ofpbuf *b, void *l3)
+{
+ b->l3_ofs = l3 ? (char *)l3 - (char *)b->frame : UINT16_MAX;
+}
+
+static inline void * ofpbuf_l4(const struct ofpbuf *b)
+{
+ return b->l4_ofs != UINT16_MAX ? (char *)b->frame + b->l4_ofs : NULL;
+}
+
+static inline void ofpbuf_set_l4(struct ofpbuf *b, void *l4)
+{
+ b->l4_ofs = l4 ? (char *)l4 - (char *)b->frame : UINT16_MAX;
+}
+
+static inline size_t ofpbuf_l4_size(const struct ofpbuf *b)
+{
+ return b->l4_ofs != UINT16_MAX
+ ? (const char *)ofpbuf_tail(b) - (const char *)ofpbuf_l4(b) : 0;
+}
+
+static inline const void *ofpbuf_get_tcp_payload(const struct ofpbuf *b)
+{
+ size_t l4_size = ofpbuf_l4_size(b);
+
+ if (OVS_LIKELY(l4_size >= TCP_HEADER_LEN)) {
+ struct tcp_header *tcp = ofpbuf_l4(b);
+ int tcp_len = TCP_OFFSET(tcp->tcp_ctl) * 4;
+
+ if (OVS_LIKELY(tcp_len >= TCP_HEADER_LEN && tcp_len <= l4_size)) {
+ return (const char *)tcp + tcp_len;
+ }
+ }
+ return NULL;
+}
+
+static inline const void *ofpbuf_get_udp_payload(const struct ofpbuf *b)
+{
+ return OVS_LIKELY(ofpbuf_l4_size(b) >= UDP_HEADER_LEN)
+ ? (const char *)ofpbuf_l4(b) + UDP_HEADER_LEN : NULL;
+}
+
+static inline const void *ofpbuf_get_sctp_payload(const struct ofpbuf *b)
+{
+ return OVS_LIKELY(ofpbuf_l4_size(b) >= SCTP_HEADER_LEN)
+ ? (const char *)ofpbuf_l4(b) + SCTP_HEADER_LEN : NULL;
+}
+
+static inline const void *ofpbuf_get_icmp_payload(const struct ofpbuf *b)
+{
+ return OVS_LIKELY(ofpbuf_l4_size(b) >= ICMP_HEADER_LEN)
+ ? (const char *)ofpbuf_l4(b) + ICMP_HEADER_LEN : NULL;
+}
+
+#ifdef DPDK_NETDEV
+static inline void * ofpbuf_data(const struct ofpbuf *b)
+{
+ return b->mbuf.pkt.data;
+}
+
+static inline void ofpbuf_set_data(struct ofpbuf *b, void *d)
+{
+ b->mbuf.pkt.data = d;
+}
+
+static inline void * ofpbuf_base(const struct ofpbuf *b)
+{
+ return b->mbuf.buf_addr;
+}
+
+static inline void ofpbuf_set_base(struct ofpbuf *b, void *d)
+{
+ b->mbuf.buf_addr = d;
+}
+
+static inline uint32_t ofpbuf_size(const struct ofpbuf *b)
+{
+ return b->mbuf.pkt.pkt_len;
+}
+
+static inline void ofpbuf_set_size(struct ofpbuf *b, uint32_t v)
+{
+ b->mbuf.pkt.data_len = v; /* Current seg length. */
+ b->mbuf.pkt.pkt_len = v; /* Total length of all segments linked to
+ * this segment. */
+}
+
+#else
+static inline void * ofpbuf_data(const struct ofpbuf *b)
+{
+ return b->data_;
+}
+
+static inline void ofpbuf_set_data(struct ofpbuf *b, void *d)
+{
+ b->data_ = d;
+}
+
+static inline void * ofpbuf_base(const struct ofpbuf *b)
+{
+ return b->base_;
+}
+
+static inline void ofpbuf_set_base(struct ofpbuf *b, void *d)
+{
+ b->base_ = d;
+}
+
+static inline uint32_t ofpbuf_size(const struct ofpbuf *b)
+{
+ return b->size_;
+}
+
+static inline void ofpbuf_set_size(struct ofpbuf *b, uint32_t v)
+{
+ b->size_ = v;
+}
+#endif