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From: Dekel Peled <dekelp@mellanox.com>
To: adrien.mazarguil@6wind.com, wenzhuo.lu@intel.com,
	jingjing.wu@intel.com, bernard.iremonger@intel.com,
	yskoh@mellanox.com, shahafs@mellanox.com
Cc: dev@dpdk.org, orika@mellanox.com, dekelp@mellanox.com
Subject: [PATCH v2 3/3] net/mlx5: update modify header using Direct Verbs
Date: Tue,  2 Apr 2019 18:13:21 +0300
Message-ID: <1554218001-62012-4-git-send-email-dekelp@mellanox.com> (raw)
In-Reply-To: <1553177917-43297-1-git-send-email-dekelp@mellanox.com>

This patch implements additional actions of packet header
modifications.

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@mellanox.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  10 +-
 drivers/net/mlx5/mlx5_flow_dv.c | 239 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_prm.h     |  12 ++
 3 files changed, 260 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index e1e798b..c49e245 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -113,6 +113,10 @@
 #define MLX5_FLOW_ACTION_NVGRE_DECAP (1u << 25)
 #define MLX5_FLOW_ACTION_RAW_ENCAP (1u << 26)
 #define MLX5_FLOW_ACTION_RAW_DECAP (1u << 27)
+#define MLX5_FLOW_ACTION_INC_TCP_SEQ (1u << 28)
+#define MLX5_FLOW_ACTION_DEC_TCP_SEQ (1u << 29)
+#define MLX5_FLOW_ACTION_INC_TCP_ACK (1u << 30)
+#define MLX5_FLOW_ACTION_DEC_TCP_ACK (1u << 31)
 
 #define MLX5_FLOW_FATE_ACTIONS \
 	(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)
@@ -134,7 +138,11 @@
 				      MLX5_FLOW_ACTION_SET_TTL | \
 				      MLX5_FLOW_ACTION_DEC_TTL | \
 				      MLX5_FLOW_ACTION_SET_MAC_SRC | \
-				      MLX5_FLOW_ACTION_SET_MAC_DST)
+				      MLX5_FLOW_ACTION_SET_MAC_DST | \
+				      MLX5_FLOW_ACTION_INC_TCP_SEQ | \
+				      MLX5_FLOW_ACTION_DEC_TCP_SEQ | \
+				      MLX5_FLOW_ACTION_INC_TCP_ACK | \
+				      MLX5_FLOW_ACTION_DEC_TCP_ACK)
 
 #ifndef IPPROTO_MPLS
 #define IPPROTO_MPLS 137
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 966dad9..eadd93f 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -126,6 +126,8 @@ struct field_modify_info modify_udp[] = {
 struct field_modify_info modify_tcp[] = {
 	{2, 0, MLX5_MODI_OUT_TCP_SPORT},
 	{2, 2, MLX5_MODI_OUT_TCP_DPORT},
+	{4, 4, MLX5_MODI_OUT_TCP_SEQ_NUM},
+	{4, 8, MLX5_MODI_OUT_TCP_ACK_NUM},
 	{0, 0, 0},
 };
 
@@ -512,6 +514,98 @@ struct field_modify_info modify_tcp[] = {
 }
 
 /**
+ * Convert modify-header increment/decrement TCP Sequence number
+ * to DV specification.
+ *
+ * @param[in,out] resource
+ *   Pointer to the modify-header resource.
+ * @param[in] action
+ *   Pointer to action specification.
+ * @param[out] error
+ *   Pointer to the error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_convert_action_modify_tcp_seq
+			(struct mlx5_flow_dv_modify_hdr_resource *resource,
+			 const struct rte_flow_action *action,
+			 struct rte_flow_error *error)
+{
+	const struct rte_flow_action_modify_tcp_seq *conf =
+		(const struct rte_flow_action_modify_tcp_seq *)(action->conf);
+	uint64_t value = rte_be_to_cpu_32(conf->value);
+	struct rte_flow_item item;
+	struct rte_flow_item_tcp tcp;
+	struct rte_flow_item_tcp tcp_mask;
+
+	memset(&tcp, 0, sizeof(tcp));
+	memset(&tcp_mask, 0, sizeof(tcp_mask));
+	if (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ)
+		/*
+		 * The HW has no decrement operation, only increment operation.
+		 * To simulate decrement X from Y using increment operation
+		 * we need to add UINT32_MAX X times to Y.
+		 * Each adding of UINT32_MAX decrements Y by 1.
+		 */
+		value *= UINT32_MAX;
+	tcp.hdr.sent_seq = rte_cpu_to_be_32((uint32_t)value);
+	tcp_mask.hdr.sent_seq = RTE_BE32(UINT32_MAX);
+	item.type = RTE_FLOW_ITEM_TYPE_TCP;
+	item.spec = &tcp;
+	item.mask = &tcp_mask;
+	return flow_dv_convert_modify_action(&item, modify_tcp, resource,
+					     MLX5_MODIFICATION_TYPE_ADD, error);
+}
+
+/**
+ * Convert modify-header increment/decrement TCP Acknowledgment number
+ * to DV specification.
+ *
+ * @param[in,out] resource
+ *   Pointer to the modify-header resource.
+ * @param[in] action
+ *   Pointer to action specification.
+ * @param[out] error
+ *   Pointer to the error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_convert_action_modify_tcp_ack
+			(struct mlx5_flow_dv_modify_hdr_resource *resource,
+			 const struct rte_flow_action *action,
+			 struct rte_flow_error *error)
+{
+	const struct rte_flow_action_modify_tcp_ack *conf =
+		(const struct rte_flow_action_modify_tcp_ack *)(action->conf);
+	uint64_t value = rte_be_to_cpu_32(conf->value);
+	struct rte_flow_item item;
+	struct rte_flow_item_tcp tcp;
+	struct rte_flow_item_tcp tcp_mask;
+
+	memset(&tcp, 0, sizeof(tcp));
+	memset(&tcp_mask, 0, sizeof(tcp_mask));
+	if (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK)
+		/*
+		 * The HW has no decrement operation, only increment operation.
+		 * To simulate decrement X from Y using increment operation
+		 * we need to add UINT32_MAX X times to Y.
+		 * Each adding of UINT32_MAX decrements Y by 1.
+		 */
+		value *= UINT32_MAX;
+	tcp.hdr.recv_ack = rte_cpu_to_be_32((uint32_t)value);
+	tcp_mask.hdr.recv_ack = RTE_BE32(UINT32_MAX);
+	item.type = RTE_FLOW_ITEM_TYPE_TCP;
+	item.spec = &tcp;
+	item.mask = &tcp_mask;
+	return flow_dv_convert_modify_action(&item, modify_tcp, resource,
+					     MLX5_MODIFICATION_TYPE_ADD, error);
+}
+
+/**
  * Validate META item.
  *
  * @param[in] dev
@@ -1385,6 +1479,96 @@ struct field_modify_info modify_tcp[] = {
 }
 
 /**
+ * Validate the modify-header actions of increment/decrement
+ * TCP Sequence-number.
+ *
+ * @param[in] action_flags
+ *   Holds the actions detected until now.
+ * @param[in] action
+ *   Pointer to the modify action.
+ * @param[in] item_flags
+ *   Holds the items detected.
+ * @param[out] error
+ *   Pointer to error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_modify_tcp_seq(const uint64_t action_flags,
+				       const struct rte_flow_action *action,
+				       const uint64_t item_flags,
+				       struct rte_flow_error *error)
+{
+	int ret = 0;
+
+	ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
+	if (!ret) {
+		if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP))
+			return rte_flow_error_set(error, EINVAL,
+						  RTE_FLOW_ERROR_TYPE_ACTION,
+						  NULL, "no TCP item in"
+						  " pattern");
+		if ((action->type == RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ &&
+			(action_flags & MLX5_FLOW_ACTION_DEC_TCP_SEQ)) ||
+		    (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ &&
+			(action_flags & MLX5_FLOW_ACTION_INC_TCP_SEQ)))
+			return rte_flow_error_set(error, EINVAL,
+						  RTE_FLOW_ERROR_TYPE_ACTION,
+						  NULL,
+						  "cannot decrease and increase"
+						  " TCP sequence number"
+						  " at the same time");
+	}
+	return ret;
+}
+
+/**
+ * Validate the modify-header actions of increment/decrement
+ * TCP Acknowledgment number.
+ *
+ * @param[in] action_flags
+ *   Holds the actions detected until now.
+ * @param[in] action
+ *   Pointer to the modify action.
+ * @param[in] item_flags
+ *   Holds the items detected.
+ * @param[out] error
+ *   Pointer to error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_modify_tcp_ack(const uint64_t action_flags,
+				       const struct rte_flow_action *action,
+				       const uint64_t item_flags,
+				       struct rte_flow_error *error)
+{
+	int ret = 0;
+
+	ret = flow_dv_validate_action_modify_hdr(action_flags, action, error);
+	if (!ret) {
+		if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP))
+			return rte_flow_error_set(error, EINVAL,
+						  RTE_FLOW_ERROR_TYPE_ACTION,
+						  NULL, "no TCP item in"
+						  " pattern");
+		if ((action->type == RTE_FLOW_ACTION_TYPE_INC_TCP_ACK &&
+			(action_flags & MLX5_FLOW_ACTION_DEC_TCP_ACK)) ||
+		    (action->type == RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK &&
+			(action_flags & MLX5_FLOW_ACTION_INC_TCP_ACK)))
+			return rte_flow_error_set(error, EINVAL,
+						  RTE_FLOW_ERROR_TYPE_ACTION,
+						  NULL,
+						  "cannot decrease and increase"
+						  " TCP acknowledgment number"
+						  " at the same time");
+	}
+	return ret;
+}
+
+/**
  * Validate the modify-header TTL actions.
  *
  * @param[in] action_flags
@@ -1962,6 +2146,40 @@ struct field_modify_info modify_tcp[] = {
 						MLX5_FLOW_ACTION_SET_TTL :
 						MLX5_FLOW_ACTION_DEC_TTL;
 			break;
+		case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
+		case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
+			ret = flow_dv_validate_action_modify_tcp_seq
+								(action_flags,
+								 actions,
+								 item_flags,
+								 error);
+			if (ret < 0)
+				return ret;
+			/* Count all modify-header actions as one action. */
+			if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
+				++actions_n;
+			action_flags |= actions->type ==
+					RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ?
+						MLX5_FLOW_ACTION_INC_TCP_SEQ :
+						MLX5_FLOW_ACTION_DEC_TCP_SEQ;
+			break;
+		case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
+		case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
+			ret = flow_dv_validate_action_modify_tcp_ack
+								(action_flags,
+								 actions,
+								 item_flags,
+								 error);
+			if (ret < 0)
+				return ret;
+			/* Count all modify-header actions as one action. */
+			if (!(action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS))
+				++actions_n;
+			action_flags |= actions->type ==
+					RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ?
+						MLX5_FLOW_ACTION_INC_TCP_ACK :
+						MLX5_FLOW_ACTION_DEC_TCP_ACK;
+			break;
 		default:
 			return rte_flow_error_set(error, ENOTSUP,
 						  RTE_FLOW_ERROR_TYPE_ACTION,
@@ -3089,6 +3307,27 @@ struct field_modify_info modify_tcp[] = {
 				return -rte_errno;
 			action_flags |= MLX5_FLOW_ACTION_SET_TTL;
 			break;
+		case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
+		case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
+			if (flow_dv_convert_action_modify_tcp_seq(&res, actions,
+								  error))
+				return -rte_errno;
+			action_flags |= actions->type ==
+					RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ?
+					MLX5_FLOW_ACTION_INC_TCP_SEQ :
+					MLX5_FLOW_ACTION_DEC_TCP_SEQ;
+			break;
+
+		case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
+		case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
+			if (flow_dv_convert_action_modify_tcp_ack(&res, actions,
+								  error))
+				return -rte_errno;
+			action_flags |= actions->type ==
+					RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ?
+					MLX5_FLOW_ACTION_INC_TCP_ACK :
+					MLX5_FLOW_ACTION_DEC_TCP_ACK;
+			break;
 		case RTE_FLOW_ACTION_TYPE_END:
 			actions_end = true;
 			if (action_flags & MLX5_FLOW_MODIFY_HDR_ACTIONS) {
diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h
index da1219e..d5c5d3c 100644
--- a/drivers/net/mlx5/mlx5_prm.h
+++ b/drivers/net/mlx5/mlx5_prm.h
@@ -336,6 +336,18 @@ enum mlx5_modification_field {
 	MLX5_MODI_IN_IPV6_HOPLIMIT,
 	MLX5_MODI_META_DATA_REG_A,
 	MLX5_MODI_META_DATA_REG_B = 0x50,
+	MLX5_MODI_META_REG_C_0,
+	MLX5_MODI_META_REG_C_1,
+	MLX5_MODI_META_REG_C_2,
+	MLX5_MODI_META_REG_C_3,
+	MLX5_MODI_META_REG_C_4,
+	MLX5_MODI_META_REG_C_5,
+	MLX5_MODI_META_REG_C_6,
+	MLX5_MODI_META_REG_C_7,
+	MLX5_MODI_OUT_TCP_SEQ_NUM,
+	MLX5_MODI_IN_TCP_SEQ_NUM,
+	MLX5_MODI_OUT_TCP_ACK_NUM,
+	MLX5_MODI_IN_TCP_ACK_NUM = 0x5C,
 };
 
 /* Modification sub command. */
-- 
1.8.3.1

  parent reply index

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-21 14:18 [PATCH 0/3] add actions to modify header fields Dekel Peled
2019-03-21 14:18 ` [PATCH 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-03-26  9:24   ` Dekel Peled
2019-03-29 13:58   ` Adrien Mazarguil
2019-03-31 13:09     ` Dekel Peled
2019-03-21 14:18 ` [PATCH 2/3] app/testpmd: " Dekel Peled
2019-03-29 13:58   ` Adrien Mazarguil
2019-03-31 13:10     ` Dekel Peled
2019-03-21 14:18 ` [PATCH 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-04-02 15:13 ` [PATCH v2 0/3] add actions to modify header fields Dekel Peled
2019-04-10 11:26   ` [dpdk-dev] [PATCH v3 " Dekel Peled
2019-04-10 11:26     ` [dpdk-dev] [PATCH v3 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-04-10 11:26     ` [dpdk-dev] [PATCH v3 2/3] app/testpmd: " Dekel Peled
2019-04-10 11:26     ` [dpdk-dev] [PATCH v3 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-04-10 11:50     ` [dpdk-dev] [PATCH v4 0/3] add actions to modify header fields Dekel Peled
2019-04-10 11:50       ` [dpdk-dev] [PATCH v4 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-04-18 12:30         ` Adrien Mazarguil
2019-04-22  7:15           ` Dekel Peled
2019-04-10 11:50       ` [dpdk-dev] [PATCH v4 2/3] app/testpmd: " Dekel Peled
2019-04-10 11:50       ` [dpdk-dev] [PATCH v4 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-04-22 11:22       ` [dpdk-dev] [PATCH v5 0/3] add actions to modify header fields Dekel Peled
2019-04-22 11:22         ` [dpdk-dev] [PATCH v5 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-04-22 11:22         ` [dpdk-dev] [PATCH v5 2/3] app/testpmd: " Dekel Peled
2019-04-22 11:22         ` [dpdk-dev] [PATCH v5 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-06-02  8:18         ` [dpdk-dev] [PATCH v5 0/3] add actions to modify header fields Dekel Peled
2019-06-04  5:13           ` Dekel Peled
2019-06-04  8:14             ` Dekel Peled
2019-06-17  6:12         ` [dpdk-dev] [PATCH v6 " Dekel Peled
2019-06-17  6:12           ` [dpdk-dev] [PATCH v6 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-06-17  6:12           ` [dpdk-dev] [PATCH v6 2/3] app/testpmd: " Dekel Peled
2019-06-17  6:12           ` [dpdk-dev] [PATCH v6 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-06-27 17:39           ` [dpdk-dev] [PATCH v7 0/3] add actions to modify header fields Dekel Peled
2019-06-30  7:59             ` [dpdk-dev] [PATCH v8 " Dekel Peled
2019-06-30  7:59               ` [dpdk-dev] [PATCH v8 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-07-01  8:55                 ` Adrien Mazarguil
2019-07-01  9:58                   ` Dekel Peled
2019-06-30  7:59               ` [dpdk-dev] [PATCH v8 2/3] app/testpmd: " Dekel Peled
2019-06-30  7:59               ` [dpdk-dev] [PATCH v8 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
     [not found]           ` <cover.1561656977.git.dekelp@mellanox.com>
2019-06-27 17:39             ` [dpdk-dev] [PATCH v7 1/3] ethdev: add actions to modify TCP header fields Dekel Peled
2019-06-27 17:54               ` Andrew Rybchenko
2019-06-28 16:18                 ` Adrien Mazarguil
2019-06-27 17:39             ` [dpdk-dev] [PATCH v7 2/3] app/testpmd: " Dekel Peled
2019-06-27 17:39             ` [dpdk-dev] [PATCH v7 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-04-02 15:13 ` [PATCH v2 1/3] ethdev: add actions to modify TCP header fields Dekel Peled
2019-04-02 16:33   ` Ori Kam
2019-04-03  9:14   ` Adrien Mazarguil
2019-04-03 10:49     ` Dekel Peled
2019-04-03 12:49       ` Adrien Mazarguil
2019-04-04  9:01         ` Ori Kam
2019-04-04 13:25           ` Adrien Mazarguil
2019-04-05 11:54             ` [dpdk-dev] " Andrew Rybchenko
2019-04-08 13:36             ` Dekel Peled
2019-04-08 13:53               ` Andrew Rybchenko
2019-04-08 14:21                 ` Adrien Mazarguil
2019-04-02 15:13 ` [PATCH v2 2/3] app/testpmd: " Dekel Peled
2019-04-02 16:33   ` Ori Kam
2019-04-02 15:13 ` Dekel Peled [this message]
2019-04-02 16:34   ` [PATCH v2 3/3] net/mlx5: update modify header using Direct Verbs Ori Kam
2019-04-03  8:27   ` Shahaf Shuler
2019-07-01 15:43 ` [dpdk-dev] [PATCH v9 0/3] add actions to modify header fields Dekel Peled
2019-07-01 15:43   ` [dpdk-dev] [PATCH v9 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-07-02  8:14     ` Andrew Rybchenko
2019-07-02  9:52       ` Dekel Peled
2019-07-02 10:33         ` Adrien Mazarguil
2019-07-02 12:01           ` Dekel Peled
2019-07-01 15:43   ` [dpdk-dev] [PATCH v9 2/3] app/testpmd: " Dekel Peled
2019-07-01 15:43   ` [dpdk-dev] [PATCH v9 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-07-02 14:44 ` [dpdk-dev] [PATCH v10 0/3] add actions to modify header fields Dekel Peled
2019-07-02 14:44   ` [dpdk-dev] [PATCH v10 1/3] ethdev: add actions to modify TCP " Dekel Peled
2019-07-03  5:04     ` Slava Ovsiienko
2019-07-02 14:44   ` [dpdk-dev] [PATCH v10 2/3] app/testpmd: " Dekel Peled
2019-07-03  6:30     ` Slava Ovsiienko
2019-07-02 14:44   ` [dpdk-dev] [PATCH v10 3/3] net/mlx5: update modify header using Direct Verbs Dekel Peled
2019-07-03  6:30     ` Slava Ovsiienko
2019-07-02 15:15   ` [dpdk-dev] [PATCH v10 0/3] add actions to modify header fields Adrien Mazarguil
2019-07-03 14:59     ` Ferruh Yigit

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	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dpdk-dev dpdk-dev/ https://lore.kernel.org/dpdk-dev \
		dev@dpdk.org dpdk-dev@archiver.kernel.org
	public-inbox-index dpdk-dev


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox