From: Hannes Reinecke <hare@suse.de>
To: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>, Keith Busch <kbusch@kernel.org>,
linux-nvme@lists.infradead.org, Chuck Lever <cel@kernel.org>,
kernel-tls-handshake@lists.linux.dev,
Hannes Reinecke <hare@suse.de>
Subject: [PATCH 13/18] nvmet-tcp: allocate socket file
Date: Tue, 21 Mar 2023 13:43:20 +0100 [thread overview]
Message-ID: <20230321124325.77385-14-hare@suse.de> (raw)
In-Reply-To: <20230321124325.77385-1-hare@suse.de>
When using the TLS upcall we need to allocate a socket file such
that the userspace daemon is able to use the socket.
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/nvme/target/tcp.c | 49 ++++++++++++++++++++++++++++-----------
1 file changed, 36 insertions(+), 13 deletions(-)
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 66e8f9fd0ca7..5c43767c5ecd 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -96,12 +96,14 @@ struct nvmet_tcp_cmd {
enum nvmet_tcp_queue_state {
NVMET_TCP_Q_CONNECTING,
+ NVMET_TCP_Q_TLS_HANDSHAKE,
NVMET_TCP_Q_LIVE,
NVMET_TCP_Q_DISCONNECTING,
};
struct nvmet_tcp_queue {
struct socket *sock;
+ struct file *sock_file;
struct nvmet_tcp_port *port;
struct work_struct io_work;
struct nvmet_cq nvme_cq;
@@ -1455,12 +1457,19 @@ static void nvmet_tcp_release_queue_work(struct work_struct *w)
nvmet_sq_destroy(&queue->nvme_sq);
cancel_work_sync(&queue->io_work);
nvmet_tcp_free_cmd_data_in_buffers(queue);
- sock_release(queue->sock);
+ if (queue->sock_file) {
+ fput(queue->sock_file);
+ queue->sock_file = NULL;
+ queue->sock = NULL;
+ } else {
+ WARN_ON(!queue->sock->ops);
+ sock_release(queue->sock);
+ queue->sock = NULL;
+ }
nvmet_tcp_free_cmds(queue);
if (queue->hdr_digest || queue->data_digest)
nvmet_tcp_free_crypto(queue);
ida_free(&nvmet_tcp_queue_ida, queue->idx);
-
page = virt_to_head_page(queue->pf_cache.va);
__page_frag_cache_drain(page, queue->pf_cache.pagecnt_bias);
kfree(queue);
@@ -1583,7 +1592,7 @@ static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue)
return ret;
}
-static int nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
+static void nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
struct socket *newsock)
{
struct nvmet_tcp_queue *queue;
@@ -1591,7 +1600,7 @@ static int nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
queue = kzalloc(sizeof(*queue), GFP_KERNEL);
if (!queue)
- return -ENOMEM;
+ return;
INIT_WORK(&queue->release_work, nvmet_tcp_release_queue_work);
INIT_WORK(&queue->io_work, nvmet_tcp_io_work);
@@ -1599,15 +1608,28 @@ static int nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
queue->port = port;
queue->nr_cmds = 0;
spin_lock_init(&queue->state_lock);
- queue->state = NVMET_TCP_Q_CONNECTING;
+ if (queue->port->nport->disc_addr.tsas.tcp.sectype ==
+ NVMF_TCP_SECTYPE_TLS13)
+ queue->state = NVMET_TCP_Q_TLS_HANDSHAKE;
+ else
+ queue->state = NVMET_TCP_Q_CONNECTING;
INIT_LIST_HEAD(&queue->free_list);
init_llist_head(&queue->resp_list);
INIT_LIST_HEAD(&queue->resp_send_list);
+ if (queue->state == NVMET_TCP_Q_TLS_HANDSHAKE) {
+ queue->sock_file = sock_alloc_file(queue->sock, O_CLOEXEC, NULL);
+ if (IS_ERR(queue->sock_file)) {
+ ret = PTR_ERR(queue->sock_file);
+ queue->sock_file = NULL;
+ goto out_free_queue;
+ }
+ }
+
queue->idx = ida_alloc(&nvmet_tcp_queue_ida, GFP_KERNEL);
if (queue->idx < 0) {
ret = queue->idx;
- goto out_free_queue;
+ goto out_sock;
}
ret = nvmet_tcp_alloc_cmd(queue, &queue->connect);
@@ -1628,7 +1650,7 @@ static int nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
if (ret)
goto out_destroy_sq;
- return 0;
+ return;
out_destroy_sq:
mutex_lock(&nvmet_tcp_queue_mutex);
list_del_init(&queue->queue_list);
@@ -1638,9 +1660,14 @@ static int nvmet_tcp_alloc_queue(struct nvmet_tcp_port *port,
nvmet_tcp_free_cmd(&queue->connect);
out_ida_remove:
ida_free(&nvmet_tcp_queue_ida, queue->idx);
+out_sock:
+ if (queue->sock_file)
+ fput(queue->sock_file);
+ else
+ sock_release(queue->sock);
out_free_queue:
kfree(queue);
- return ret;
+ pr_err("failed to allocate queue");
}
static void nvmet_tcp_accept_work(struct work_struct *w)
@@ -1657,11 +1684,7 @@ static void nvmet_tcp_accept_work(struct work_struct *w)
pr_warn("failed to accept err=%d\n", ret);
return;
}
- ret = nvmet_tcp_alloc_queue(port, newsock);
- if (ret) {
- pr_err("failed to allocate queue\n");
- sock_release(newsock);
- }
+ nvmet_tcp_alloc_queue(port, newsock);
}
}
--
2.35.3
next prev parent reply other threads:[~2023-03-21 12:44 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-21 12:43 [RFC PATCH 00/18] nvme: In-kernel TLS support for TCP Hannes Reinecke
2023-03-21 12:43 ` [PATCH 01/18] nvme-keyring: register '.nvme' keyring Hannes Reinecke
2023-03-21 13:50 ` Sagi Grimberg
2023-03-21 14:11 ` Hannes Reinecke
2023-03-21 12:43 ` [PATCH 02/18] nvme-keyring: define a 'psk' keytype Hannes Reinecke
2023-03-22 8:29 ` Sagi Grimberg
2023-03-22 8:38 ` Hannes Reinecke
2023-03-22 8:49 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 03/18] nvme: add TCP TSAS definitions Hannes Reinecke
2023-03-21 13:46 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 04/18] nvme-tcp: add definitions for TLS cipher suites Hannes Reinecke
2023-03-22 8:18 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 05/18] nvme-tcp: implement recvmsg rx flow for TLS Hannes Reinecke
2023-03-21 13:39 ` Sagi Grimberg
2023-03-21 13:59 ` Hannes Reinecke
2023-03-22 8:01 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 06/18] nvme-tcp: call 'queue->data_ready()' in nvme_tcp_data_ready() Hannes Reinecke
2023-03-21 13:44 ` Sagi Grimberg
2023-03-21 14:09 ` Hannes Reinecke
2023-03-22 0:18 ` Chris Leech
2023-03-22 6:59 ` Hannes Reinecke
2023-03-22 8:12 ` Sagi Grimberg
2023-03-22 8:08 ` Sagi Grimberg
2023-03-22 8:26 ` Hannes Reinecke
2023-03-22 10:13 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 07/18] nvme/tcp: allocate socket file Hannes Reinecke
2023-03-21 13:52 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 08/18] nvme-tcp: enable TLS handshake upcall Hannes Reinecke
2023-03-22 8:45 ` Sagi Grimberg
2023-03-22 9:12 ` Hannes Reinecke
2023-03-22 10:56 ` Sagi Grimberg
2023-03-22 12:54 ` Hannes Reinecke
2023-03-22 13:16 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 09/18] nvme-tcp: add connect option 'tls' Hannes Reinecke
2023-03-22 9:24 ` Sagi Grimberg
2023-03-22 9:59 ` Hannes Reinecke
2023-03-22 10:09 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 10/18] nvme-tcp: fixup send workflow for kTLS Hannes Reinecke
2023-03-22 9:31 ` Sagi Grimberg
2023-03-22 10:08 ` Hannes Reinecke
2023-03-22 11:18 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 11/18] nvme-tcp: control message handling for recvmsg() Hannes Reinecke
2023-03-22 11:33 ` Sagi Grimberg
2023-03-22 11:48 ` Hannes Reinecke
2023-03-22 11:50 ` Sagi Grimberg
2023-03-22 12:17 ` Hannes Reinecke
2023-03-22 12:29 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 12/18] nvmet: make TCP sectype settable via configfs Hannes Reinecke
2023-03-22 11:38 ` Sagi Grimberg
2023-03-21 12:43 ` Hannes Reinecke [this message]
2023-03-22 11:46 ` [PATCH 13/18] nvmet-tcp: allocate socket file Sagi Grimberg
2023-03-22 12:07 ` Hannes Reinecke
2023-03-21 12:43 ` [PATCH 14/18] security/keys: export key_lookup() Hannes Reinecke
2023-03-21 12:43 ` [PATCH 15/18] nvmet-tcp: enable TLS handshake upcall Hannes Reinecke
2023-03-22 12:13 ` Sagi Grimberg
2023-03-22 12:34 ` Hannes Reinecke
2023-03-22 12:51 ` Sagi Grimberg
2023-03-22 13:47 ` Hannes Reinecke
2023-03-22 15:42 ` Sagi Grimberg
2023-03-22 16:43 ` Hannes Reinecke
2023-03-22 16:49 ` Chuck Lever III
2023-03-23 7:21 ` Sagi Grimberg
2023-03-24 11:29 ` Hannes Reinecke
2023-03-26 7:18 ` Sagi Grimberg
2023-03-27 6:20 ` Hannes Reinecke
2023-03-28 8:44 ` Sagi Grimberg
2023-03-28 9:20 ` Hannes Reinecke
2023-03-28 9:43 ` Sagi Grimberg
2023-03-28 10:04 ` Hannes Reinecke
2023-03-28 13:22 ` Chuck Lever III
2023-03-28 15:29 ` Sagi Grimberg
2023-03-28 15:56 ` Chuck Lever III
2023-03-29 6:33 ` Sagi Grimberg
2023-03-23 7:44 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 16/18] nvmet-tcp: rework sendpage for kTLS Hannes Reinecke
2023-03-22 12:16 ` Sagi Grimberg
2023-03-21 12:43 ` [PATCH 17/18] nvmet-tcp: control messages for recvmsg() Hannes Reinecke
2023-03-21 12:43 ` [PATCH 18/18] nvmet-tcp: peek icreq before starting TLS Hannes Reinecke
2023-03-22 12:24 ` Sagi Grimberg
2023-03-22 12:38 ` Hannes Reinecke
2023-03-21 13:12 ` [RFC PATCH 00/18] nvme: In-kernel TLS support for TCP Sagi Grimberg
2023-03-21 13:30 ` Hannes Reinecke
2023-03-22 8:16 ` Sagi Grimberg
2023-03-22 8:28 ` Hannes Reinecke
2023-03-22 12:53 ` Sagi Grimberg
2023-03-22 15:10 ` Hannes Reinecke
2023-03-22 15:43 ` Sagi Grimberg
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