Add actions:
- INC_TCP_SEQ - Increase sequence number in the outermost TCP header.
- DEC_TCP_SEQ - Decrease sequence number in the outermost TCP header.
- INC_TCP_ACK - Increase acknowledgment number in the outermost TCP
header.
- DEC_TCP_ACK - Decrease acknowledgment number in the outermost TCP
header.
Original work by Xiaoyu Min.
Signed-off-by: Dekel Peled <dek...@mellanox.com>
---
doc/guides/prog_guide/rte_flow.rst | 72 ++++++++++++++++++++++++++++++++++++++
lib/librte_ethdev/rte_flow.c | 8 +++++
lib/librte_ethdev/rte_flow.h | 70 ++++++++++++++++++++++++++++++++++++
3 files changed, 150 insertions(+)
diff --git a/doc/guides/prog_guide/rte_flow.rst
b/doc/guides/prog_guide/rte_flow.rst
index 0203f4f..5bebb29 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -2345,6 +2345,78 @@ Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be
returned.
| ``mac_addr`` | MAC address |
+--------------+---------------+
+Action: ``INC_TCP_SEQ``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Increase sequence number in the outermost TCP header.
+
+If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern
item,
+behavior is unspecified, depending on PMD implementation.
+
+.. _table_rte_flow_action_inc_tcp_seq:
+
+.. table:: INC_TCP_SEQ
+
+ +-----------+------------------------------------------+
+ | Field | Value |
+ +===========+==========================================+
+ | ``value`` | Value to increase TCP sequence number by |
+ +-----------+------------------------------------------+
+
+Action: ``DEC_TCP_SEQ``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Decrease sequence number in the outermost TCP header.
+
+If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern
item,
+behavior is unspecified, depending on PMD implementation.
+
+.. _table_rte_flow_action_dec_tcp_seq:
+
+.. table:: DEC_TCP_SEQ
+
+ +-----------+------------------------------------------+
+ | Field | Value |
+ +===========+==========================================+
+ | ``value`` | Value to decrease TCP sequence number by |
+ +-----------+------------------------------------------+
+
+Action: ``INC_TCP_ACK``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Increase acknowledgment number in the outermost TCP header.
+
+If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern
item,
+behavior is unspecified, depending on PMD implementation.
+
+.. _table_rte_flow_action_inc_tcp_ack:
+
+.. table:: INC_TCP_ACK
+
+ +-----------+------------------------------------------------+
+ | Field | Value |
+ +===========+================================================+
+ | ``value`` | Value to increase TCP acknowledgment number by |
+ +-----------+------------------------------------------------+
+
+Action: ``DEC_TCP_ACK``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Decrease acknowledgment number in the outermost TCP header.
+
+If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP flow pattern
item,
+behavior is unspecified, depending on PMD implementation.
+
+.. _table_rte_flow_action_dec_tcp_ack:
+
+.. table:: DEC_TCP_ACK
+
+ +-----------+------------------------------------------------+
+ | Field | Value |
+ +===========+================================================+
+ | ``value`` | Value to decrease TCP acknowledgment number by |
+ +-----------+------------------------------------------------+
+
Negative types
~~~~~~~~~~~~~~
diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index 3277be1..589d0b9 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -143,6 +143,14 @@ struct rte_flow_desc_data {
MK_FLOW_ACTION(SET_TTL, sizeof(struct rte_flow_action_set_ttl)),
MK_FLOW_ACTION(SET_MAC_SRC, sizeof(struct rte_flow_action_set_mac)),
MK_FLOW_ACTION(SET_MAC_DST, sizeof(struct rte_flow_action_set_mac)),
+ MK_FLOW_ACTION(INC_TCP_SEQ,
+ sizeof(struct rte_flow_action_modify_tcp_seq)),
+ MK_FLOW_ACTION(DEC_TCP_SEQ,
+ sizeof(struct rte_flow_action_modify_tcp_seq)),
+ MK_FLOW_ACTION(INC_TCP_ACK,
+ sizeof(struct rte_flow_action_modify_tcp_ack)),
+ MK_FLOW_ACTION(DEC_TCP_ACK,
+ sizeof(struct rte_flow_action_modify_tcp_ack)),
};
static int
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index c0fe879..eca7544 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -1651,6 +1651,50 @@ enum rte_flow_action_type {
* See struct rte_flow_action_set_mac.
*/
RTE_FLOW_ACTION_TYPE_SET_MAC_DST,
+
+ /**
+ * Increase sequence number in the outermost TCP header.
+ *
+ * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP
+ * flow pattern item, behavior is unspecified, depending on
+ * PMD implementation.
+ *
+ * See struct rte_flow_action_modify_tcp_seq
+ */
+ RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ,
+
+ /**
+ * Decrease sequence number in the outermost TCP header.
+ *
+ * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP
+ * flow pattern item, behavior is unspecified, depending on
+ * PMD implementation.
+ *
+ * See struct rte_flow_action_modify_tcp_seq
+ */
+ RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ,
+
+ /**
+ * Increase acknowledgment number in the outermost TCP header.
+ *
+ * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP
+ * flow pattern item, behavior is unspecified, depending on
+ * PMD implementation.
+ *
+ * See struct rte_flow_action_modify_tcp_ack
+ */
+ RTE_FLOW_ACTION_TYPE_INC_TCP_ACK,
+
+ /**
+ * Decrease acknowledgment number in the outermost TCP header.
+ *
+ * If this action is used without a valid RTE_FLOW_ITEM_TYPE_TCP
+ * flow pattern item, behavior is unspecified, depending on
+ * PMD implementation.
+ *
+ * See struct rte_flow_action_modify_tcp_ack
+ */
+ RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK,
};
/**
@@ -2122,6 +2166,32 @@ struct rte_flow_action_set_mac {
uint8_t mac_addr[ETHER_ADDR_LEN];
};
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ
+ * RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ
+ *
+ * Increase/Decrease outermost TCP sequence number
+ */
+struct rte_flow_action_modify_tcp_seq {
+ rte_be32_t value; /**< Value to increase/decrease by. */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ACTION_TYPE_INC_TCP_ACK
+ * RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK
+ *
+ * Increase/Decrease outermost TCP acknowledgment number.
+ */
+struct rte_flow_action_modify_tcp_ack {
+ rte_be32_t value; /**< Value to increase/decrease by. */
+};
+
/*
* Definition of a single action.
*
--
1.8.3.1
