[dpdk-dev] [PATCH 2/3] app/testpmd: add actions to modify TCP header fields
Dekel Peled
dekelp at mellanox.com
Thu Mar 21 15:18:36 CET 2019
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 <dekelp at mellanox.com>
---
app/test-pmd/cmdline_flow.c | 100 ++++++++++++++++++++++++++++
doc/guides/testpmd_app_ug/testpmd_funcs.rst | 16 +++++
2 files changed, 116 insertions(+)
diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 36659a6..5cd4ceb 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -271,6 +271,14 @@ enum index {
ACTION_SET_MAC_SRC_MAC_SRC,
ACTION_SET_MAC_DST,
ACTION_SET_MAC_DST_MAC_DST,
+ ACTION_INC_TCP_SEQ,
+ ACTION_INC_TCP_SEQ_VALUE,
+ ACTION_DEC_TCP_SEQ,
+ ACTION_DEC_TCP_SEQ_VALUE,
+ ACTION_INC_TCP_ACK,
+ ACTION_INC_TCP_ACK_VALUE,
+ ACTION_DEC_TCP_ACK,
+ ACTION_DEC_TCP_ACK_VALUE,
};
/** Maximum size for pattern in struct rte_flow_item_raw. */
@@ -884,6 +892,10 @@ struct parse_action_priv {
ACTION_SET_TTL,
ACTION_SET_MAC_SRC,
ACTION_SET_MAC_DST,
+ ACTION_INC_TCP_SEQ,
+ ACTION_DEC_TCP_SEQ,
+ ACTION_INC_TCP_ACK,
+ ACTION_DEC_TCP_ACK,
ZERO,
};
@@ -1046,6 +1058,30 @@ struct parse_action_priv {
ZERO,
};
+static const enum index action_inc_tcp_seq[] = {
+ ACTION_INC_TCP_SEQ_VALUE,
+ ACTION_NEXT,
+ ZERO,
+};
+
+static const enum index action_dec_tcp_seq[] = {
+ ACTION_DEC_TCP_SEQ_VALUE,
+ ACTION_NEXT,
+ ZERO,
+};
+
+static const enum index action_inc_tcp_ack[] = {
+ ACTION_INC_TCP_ACK_VALUE,
+ ACTION_NEXT,
+ ZERO,
+};
+
+static const enum index action_dec_tcp_ack[] = {
+ ACTION_DEC_TCP_ACK_VALUE,
+ ACTION_NEXT,
+ ZERO,
+};
+
static int parse_init(struct context *, const struct token *,
const char *, unsigned int,
void *, unsigned int);
@@ -2843,6 +2879,70 @@ static int comp_vc_action_rss_queue(struct context *, const struct token *,
(struct rte_flow_action_set_mac, mac_addr)),
.call = parse_vc_conf,
},
+ [ACTION_INC_TCP_SEQ] = {
+ .name = "inc_tcp_seq",
+ .help = "increase TCP sequence number",
+ .priv = PRIV_ACTION(INC_TCP_SEQ,
+ sizeof(struct rte_flow_action_modify_tcp_seq)),
+ .next = NEXT(action_inc_tcp_seq),
+ .call = parse_vc,
+ },
+ [ACTION_INC_TCP_SEQ_VALUE] = {
+ .name = "value",
+ .help = "the value to increase TCP sequence number by",
+ .next = NEXT(action_inc_tcp_seq, NEXT_ENTRY(UNSIGNED)),
+ .args = ARGS(ARGS_ENTRY_HTON
+ (struct rte_flow_action_modify_tcp_seq, value)),
+ .call = parse_vc_conf,
+ },
+ [ACTION_DEC_TCP_SEQ] = {
+ .name = "dec_tcp_seq",
+ .help = "decrease TCP sequence number",
+ .priv = PRIV_ACTION(DEC_TCP_SEQ,
+ sizeof(struct rte_flow_action_modify_tcp_seq)),
+ .next = NEXT(action_dec_tcp_seq),
+ .call = parse_vc,
+ },
+ [ACTION_DEC_TCP_SEQ_VALUE] = {
+ .name = "value",
+ .help = "the value to decrease TCP sequence number by",
+ .next = NEXT(action_dec_tcp_seq, NEXT_ENTRY(UNSIGNED)),
+ .args = ARGS(ARGS_ENTRY_HTON
+ (struct rte_flow_action_modify_tcp_seq, value)),
+ .call = parse_vc_conf,
+ },
+ [ACTION_INC_TCP_ACK] = {
+ .name = "inc_tcp_ack",
+ .help = "increase TCP acknowledgment number",
+ .priv = PRIV_ACTION(INC_TCP_ACK,
+ sizeof(struct rte_flow_action_modify_tcp_ack)),
+ .next = NEXT(action_inc_tcp_ack),
+ .call = parse_vc,
+ },
+ [ACTION_INC_TCP_ACK_VALUE] = {
+ .name = "value",
+ .help = "the value to increase TCP acknowledgment number by",
+ .next = NEXT(action_inc_tcp_ack, NEXT_ENTRY(UNSIGNED)),
+ .args = ARGS(ARGS_ENTRY_HTON
+ (struct rte_flow_action_modify_tcp_ack, value)),
+ .call = parse_vc_conf,
+ },
+ [ACTION_DEC_TCP_ACK] = {
+ .name = "dec_tcp_ack",
+ .help = "decrease TCP acknowledgment number",
+ .priv = PRIV_ACTION(DEC_TCP_ACK,
+ sizeof(struct rte_flow_action_modify_tcp_ack)),
+ .next = NEXT(action_dec_tcp_ack),
+ .call = parse_vc,
+ },
+ [ACTION_DEC_TCP_ACK_VALUE] = {
+ .name = "value",
+ .help = "the value to decrease TCP acknowledgment number by",
+ .next = NEXT(action_dec_tcp_ack, NEXT_ENTRY(UNSIGNED)),
+ .args = ARGS(ARGS_ENTRY_HTON
+ (struct rte_flow_action_modify_tcp_ack, value)),
+ .call = parse_vc_conf,
+ },
};
/** Remove and return last entry from argument stack. */
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 1a12da4..c6f8b2c 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -3961,6 +3961,22 @@ This section lists supported actions and their attributes, if any.
- ``mac_addr {MAC-48}``: new destination MAC address
+- ``inc_tcp_seq``: Increase sequence number in the outermost TCP header
+
+ - ``value {unsigned}``: Value to increase TCP sequence number by
+
+- ``dec_tcp_seq``: Decrease sequence number in the outermost TCP header
+
+ - ``value {unsigned}``: Value to decrease TCP sequence number by
+
+- ``inc_tcp_ack``: Increase acknowledgment number in the outermost TCP header
+
+ - ``value {unsigned}``: Value to increase TCP acknowledgment number by
+
+- ``dec_tcp_ack``: Decrease acknowledgment number in the outermost TCP header
+
+ - ``value {unsigned}``: Value to decrease TCP acknowledgment number by
+
Destroying flow rules
~~~~~~~~~~~~~~~~~~~~~
--
1.8.3.1
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