@@ -171,6 +171,10 @@ enum index {
ITEM_GRE_PROTO,
ITEM_FUZZY,
ITEM_FUZZY_THRESH,
+ ITEM_GTP,
+ ITEM_GTP_TEID,
+ ITEM_GTPC,
+ ITEM_GTPU,
/* Validate/create actions. */
ACTIONS,
@@ -451,6 +455,9 @@ static const enum index next_item[] = {
ITEM_MPLS,
ITEM_GRE,
ITEM_FUZZY,
+ ITEM_GTP,
+ ITEM_GTPC,
+ ITEM_GTPU,
ZERO,
};
@@ -588,6 +595,12 @@ static const enum index item_gre[] = {
ZERO,
};
+static const enum index item_gtp[] = {
+ ITEM_GTP_TEID,
+ ITEM_NEXT,
+ ZERO,
+};
+
static const enum index next_action[] = {
ACTION_END,
ACTION_VOID,
@@ -1421,6 +1434,33 @@ static const struct token token_list[] = {
.args = ARGS(ARGS_ENTRY(struct rte_flow_item_fuzzy,
thresh)),
},
+ [ITEM_GTP] = {
+ .name = "gtp",
+ .help = "match GTP header",
+ .priv = PRIV_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
+ .next = NEXT(item_gtp),
+ .call = parse_vc,
+ },
+ [ITEM_GTP_TEID] = {
+ .name = "teid",
+ .help = "tunnel endpoint identifier",
+ .next = NEXT(item_gtp, NEXT_ENTRY(UNSIGNED), item_param),
+ .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_gtp, teid)),
+ },
+ [ITEM_GTPC] = {
+ .name = "gtpc",
+ .help = "match GTP header",
+ .priv = PRIV_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
+ .next = NEXT(item_gtp),
+ .call = parse_vc,
+ },
+ [ITEM_GTPU] = {
+ .name = "gtpu",
+ .help = "match GTP header",
+ .priv = PRIV_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
+ .next = NEXT(item_gtp),
+ .call = parse_vc,
+ },
/* Validate/create actions. */
[ACTIONS] = {
@@ -949,6 +949,9 @@ static const struct {
MK_FLOW_ITEM(MPLS, sizeof(struct rte_flow_item_mpls)),
MK_FLOW_ITEM(GRE, sizeof(struct rte_flow_item_gre)),
MK_FLOW_ITEM(FUZZY, sizeof(struct rte_flow_item_fuzzy)),
+ MK_FLOW_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
+ MK_FLOW_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
+ MK_FLOW_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
};
/** Compute storage space needed by item specification. */
@@ -955,6 +955,24 @@ Usage example, fuzzy match a TCPv4 packets:
| 4 | END |
+-------+----------+
+Item: ``GTP``, ``GTPC``, ``GTPU``
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Matches a GTP header.
+
+Note: GTP, GTPC and GTPU use the same structure. Since only UDP destination port
+is used to distinguish GTP_C (port is 2123) and GTP_U packets (port is 2152),
+GTPC and GTPU item are defined for a user-friendly API when creating GTP-C and
+GTP-U flow.
+
+- ``v_pt_rsv_flags``: version (3b), protocol type (1b), reserved (1b),
+ extension header flag (1b), sequence number flag (1b), N-PDU number
+ flag (1b).
+- ``msg_type``: message type.
+- ``msg_len``: message length.
+- ``teid``: tunnel endpoint identifier.
+- Default ``mask`` matches teid only.
+
Actions
~~~~~~~
@@ -2696,6 +2696,10 @@ This section lists supported pattern items and their attributes, if any.
- ``thresh {unsigned}``: accuracy threshold.
+- ``gtp``, ``gtpc``, ``gtpu``: match GTP header.
+
+ - ``teid {unsigned}``: tunnel endpoint identifier.
+
Actions list
^^^^^^^^^^^^
@@ -309,6 +309,33 @@ enum rte_flow_item_type {
* See struct rte_flow_item_fuzzy.
*/
RTE_FLOW_ITEM_TYPE_FUZZY,
+
+ /**
+ * Matches a GTP header.
+ *
+ * Configure flow for GTP packets.
+ *
+ * See struct rte_flow_item_gtp.
+ */
+ RTE_FLOW_ITEM_TYPE_GTP,
+
+ /**
+ * Matches a GTP header.
+ *
+ * Configure flow for GTP-C packets.
+ *
+ * See struct rte_flow_item_gtp.
+ */
+ RTE_FLOW_ITEM_TYPE_GTPC,
+
+ /**
+ * Matches a GTP header.
+ *
+ * Configure flow for GTP-U packets.
+ *
+ * See struct rte_flow_item_gtp.
+ */
+ RTE_FLOW_ITEM_TYPE_GTPU,
};
/**
@@ -735,6 +762,31 @@ static const struct rte_flow_item_fuzzy rte_flow_item_fuzzy_mask = {
#endif
/**
+ * RTE_FLOW_ITEM_TYPE_GTP.
+ *
+ * Matches a GTP header.
+ */
+struct rte_flow_item_gtp {
+ /**
+ * Version (2b), protocol type (1b), reserved (1b),
+ * Extension header flag (1b),
+ * Sequence number flag (1b),
+ * N-PDU number flag (1b).
+ */
+ uint8_t v_pt_rsv_flags;
+ uint8_t msg_type; /**< Message type. */
+ rte_be16_t msg_len; /**< Message length. */
+ rte_be32_t teid; /**< Tunnel endpoint identifier. */
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_GTP. */
+#ifndef __cplusplus
+static const struct rte_flow_item_gtp rte_flow_item_gtp_mask = {
+ .teid = RTE_BE32(0xffffffff),
+};
+#endif
+
+/**
* Matching pattern item definition.
*
* A pattern is formed by stacking items starting from the lowest protocol