From: Chaitanya Kulkarni <kch@nvidia.com>
To: <hare@suse.de>
Cc: <hch@lst.de>, <sagi@grimberg.me>,
<linux-nvme@lists.infradead.org>, <kbusch@kernel.org>,
Chaitanya Kulkarni <kch@nvidia.com>
Subject: [PATCH V2 1/4] nvmet-auth: use common helper to check secp/spsp
Date: Sun, 4 Jun 2023 23:44:31 -0700 [thread overview]
Message-ID: <20230605064434.45233-2-kch@nvidia.com> (raw)
In-Reply-To: <20230605064434.45233-1-kch@nvidia.com>
Add a common helper to factor out secp/spsp values check in
nvmet_execute_auth_send() and nvmet_execute_auth_receive().
No functional change in this patch.
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
drivers/nvme/target/fabrics-cmd-auth.c | 60 +++++++++++---------------
1 file changed, 24 insertions(+), 36 deletions(-)
diff --git a/drivers/nvme/target/fabrics-cmd-auth.c b/drivers/nvme/target/fabrics-cmd-auth.c
index 586458f765f1..42594e086de7 100644
--- a/drivers/nvme/target/fabrics-cmd-auth.c
+++ b/drivers/nvme/target/fabrics-cmd-auth.c
@@ -12,6 +12,23 @@
#include <crypto/kpp.h>
#include "nvmet.h"
+static u16 nvmet_auth_check_secp_spsp(struct nvmet_req *req)
+{
+ if (req->cmd->auth_send.secp != NVME_AUTH_DHCHAP_PROTOCOL_IDENTIFIER) {
+ req->error_loc = offsetof(struct nvmf_auth_send_command, secp);
+ return NVME_SC_INVALID_FIELD | NVME_SC_DNR;
+ }
+ if (req->cmd->auth_send.spsp0 != 0x01) {
+ req->error_loc = offsetof(struct nvmf_auth_send_command, spsp0);
+ return NVME_SC_INVALID_FIELD | NVME_SC_DNR;
+ }
+ if (req->cmd->auth_send.spsp1 != 0x01) {
+ req->error_loc = offsetof(struct nvmf_auth_send_command, spsp1);
+ return NVME_SC_INVALID_FIELD | NVME_SC_DNR;
+ }
+ return NVME_SC_SUCCESS;
+}
+
static void nvmet_auth_expired_work(struct work_struct *work)
{
struct nvmet_sq *sq = container_of(to_delayed_work(work),
@@ -185,26 +202,12 @@ void nvmet_execute_auth_send(struct nvmet_req *req)
struct nvmf_auth_dhchap_success2_data *data;
void *d;
u32 tl;
- u16 status = 0;
+ u16 status;
- if (req->cmd->auth_send.secp != NVME_AUTH_DHCHAP_PROTOCOL_IDENTIFIER) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_send_command, secp);
- goto done;
- }
- if (req->cmd->auth_send.spsp0 != 0x01) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_send_command, spsp0);
- goto done;
- }
- if (req->cmd->auth_send.spsp1 != 0x01) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_send_command, spsp1);
+ status = nvmet_auth_check_secp_spsp(req);
+ if (status)
goto done;
- }
+
tl = le32_to_cpu(req->cmd->auth_send.tl);
if (!tl) {
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
@@ -432,26 +435,11 @@ void nvmet_execute_auth_receive(struct nvmet_req *req)
struct nvmet_ctrl *ctrl = req->sq->ctrl;
void *d;
u32 al;
- u16 status = 0;
+ u16 status;
- if (req->cmd->auth_receive.secp != NVME_AUTH_DHCHAP_PROTOCOL_IDENTIFIER) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_receive_command, secp);
- goto done;
- }
- if (req->cmd->auth_receive.spsp0 != 0x01) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_receive_command, spsp0);
- goto done;
- }
- if (req->cmd->auth_receive.spsp1 != 0x01) {
- status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
- req->error_loc =
- offsetof(struct nvmf_auth_receive_command, spsp1);
+ status = nvmet_auth_check_secp_spsp(req);
+ if (status)
goto done;
- }
al = le32_to_cpu(req->cmd->auth_receive.al);
if (!al) {
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
--
2.40.0
next prev parent reply other threads:[~2023-06-05 6:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-05 6:44 [PATCH V2 0/4] nvmet-auth: auth send / receive cleanup Chaitanya Kulkarni
2023-06-05 6:44 ` Chaitanya Kulkarni [this message]
2023-06-05 7:42 ` [PATCH V2 1/4] nvmet-auth: use common helper to check secp/spsp Hannes Reinecke
2023-06-05 6:44 ` [PATCH V2 2/4] nvmet_auth: use common helper for buffer alloc Chaitanya Kulkarni
2023-06-05 7:45 ` Hannes Reinecke
2023-06-05 6:44 ` [PATCH V2 3/4] nvmet-auth: use helper for auth send/recv cmd prep Chaitanya Kulkarni
2023-06-05 7:46 ` Hannes Reinecke
2023-06-05 8:41 ` Chaitanya Kulkarni
2023-06-07 4:57 ` Christoph Hellwig
2023-06-05 6:44 ` [PATCH V2 4/4] nvmet-auth: use correct type for status variable Chaitanya Kulkarni
2023-06-05 7:49 ` Hannes Reinecke
2023-06-07 4:58 ` Christoph Hellwig
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