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 | 68 ++++++++++++++++++++++++++++++++++++++
lib/librte_ethdev/rte_flow.c | 4 +++
lib/librte_ethdev/rte_flow.h | 61 ++++++++++++++++++++++++++++++++++
3 files changed, 133 insertions(+)
diff --git a/doc/guides/prog_guide/rte_flow.rst
b/doc/guides/prog_guide/rte_flow.rst
index 0203f4f..a050853 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -2345,6 +2345,74 @@ 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.
+
+Using this action on non-matching traffic will result in undefined behavior.
+
+.. _table_rte_flow_action_inc_tcp_seq:
+
+.. table:: INC_TCP_SEQ
+
+ +----------+------------------------------------------+
+ | Field | Value |
+ +==========+==========================================+
+ | ``be32`` | Value to increase TCP sequence number by |
+ +----------+------------------------------------------+
+
+Action: ``DEC_TCP_SEQ``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Decrease sequence number in the outermost TCP header.
+
+Using this action on non-matching traffic will result in undefined behavior.
+
+.. _table_rte_flow_action_dec_tcp_seq:
+
+.. table:: DEC_TCP_SEQ
+
+ +----------+------------------------------------------+
+ | Field | Value |
+ +==========+==========================================+
+ | ``be32`` | Value to decrease TCP sequence number by |
+ +----------+------------------------------------------+
+
+Action: ``INC_TCP_ACK``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Increase acknowledgment number in the outermost TCP header.
+
+Using this action on non-matching traffic will result in undefined behavior.
+
+.. _table_rte_flow_action_inc_tcp_ack:
+
+.. table:: INC_TCP_ACK
+
+ +----------+------------------------------------------------+
+ | Field | Value |
+ +==========+================================================+
+ | ``be32`` | Value to increase TCP acknowledgment number by |
+ +----------+------------------------------------------------+
+
+Action: ``DEC_TCP_ACK``
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Decrease acknowledgment number in the outermost TCP header.
+
+Using this action on non-matching traffic will result in undefined behavior.
+
+.. _table_rte_flow_action_dec_tcp_ack:
+
+.. table:: DEC_TCP_ACK
+
+ +----------+------------------------------------------------+
+ | Field | Value |
+ +==========+================================================+
+ | ``be32`` | 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..d666d06 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -143,6 +143,10 @@ 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_integer_action)),
+ MK_FLOW_ACTION(DEC_TCP_SEQ, sizeof(struct rte_flow_integer_action)),
+ MK_FLOW_ACTION(INC_TCP_ACK, sizeof(struct rte_flow_integer_action)),
+ MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(struct rte_flow_integer_action)),
};
static int
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index c0fe879..e03ca58 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -1651,6 +1651,46 @@ 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.
+ *
+ * Using this action on non-matching traffic will result in
+ * undefined behavior.
+ *
+ * See struct rte_flow_integer_action.
+ */
+ RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ,
+
+ /**
+ * Decrease sequence number in the outermost TCP header.
+ *
+ * Using this action on non-matching traffic will result in
+ * undefined behavior.
+ *
+ * See struct rte_flow_integer_action.
+ */
+ RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ,
+
+ /**
+ * Increase acknowledgment number in the outermost TCP header.
+ *
+ * Using this action on non-matching traffic will result in
+ * undefined behavior.
+ *
+ * See struct rte_flow_integer_action.
+ */
+ RTE_FLOW_ACTION_TYPE_INC_TCP_ACK,
+
+ /**
+ * Decrease acknowledgment number in the outermost TCP header.
+ *
+ * Using this action on non-matching traffic will result in
+ * undefined behavior.
+ *
+ * See struct rte_flow_integer_action.
+ */
+ RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK,
};
/**
@@ -2122,6 +2162,27 @@ struct rte_flow_action_set_mac {
uint8_t mac_addr[ETHER_ADDR_LEN];
};
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * General struct, for use by actions that require a single integer value.
+ */
+struct rte_flow_integer_action {
+ union rte_flow_integer {
+ rte_be32_t be32;
+ rte_le32_t le32;
+ uint32_t u32;
+ int32_t i32;
+ rte_be16_t be16;
+ rte_le16_t le16;
+ uint16_t u16;
+ int16_t i16;
+ uint8_t u8;
+ int8_t i8;
+ } rte_flow_int;
+};
+
/*
* Definition of a single action.
*
--
1.8.3.1
