| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1550103368-4605-13-git-send-email-zub@linux.fjfi.cvut.cz>
Date: Thu, 14 Feb 2019 01:16:04 +0100
From: David Kozub <zub@...ux.fjfi.cvut.cz>
To: Jens Axboe <axboe@...nel.dk>,
Jonathan Derrick <jonathan.derrick@...el.com>,
Scott Bauer <sbauer@...donthack.me>,
linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>,
David Kozub <zub@...ux.fjfi.cvut.cz>
Subject: [PATCH 12/16] block: sed-opal: unify retrieval of table columns
Instead of having multiple places defining the same argument list to get
a specific column of a sed-opal table, provide a generic version and
call it from those functions.
Co-authored-by: David Kozub <zub@...ux.fjfi.cvut.cz>
Signed-off-by: Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>
Signed-off-by: David Kozub <zub@...ux.fjfi.cvut.cz>
Reviewed-by: Scott Bauer <sbauer@...donthack.me>
Reviewed-by: Christoph Hellwig <hch@....de>
Reviewed-by: Jon Derrick <jonathan.derrick@...el.com>
---
block/sed-opal.c | 130 +++++++++++++++++------------------------------
1 file changed, 47 insertions(+), 83 deletions(-)
diff --git a/block/sed-opal.c b/block/sed-opal.c
index 7f02e50e2bce..5395ab1c5248 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -1075,6 +1075,37 @@ static int finalize_and_send(struct opal_dev *dev, cont_fn cont)
return opal_send_recv(dev, cont);
}
+/*
+ * request @column from table @table on device @dev. On success, the column
+ * data will be available in dev->resp->tok[4]
+ */
+static int generic_get_column(struct opal_dev *dev, const u8 *table,
+ u64 column)
+{
+ int err;
+
+ err = cmd_start(dev, table, opalmethod[OPAL_GET]);
+
+ add_token_u8(&err, dev, OPAL_STARTLIST);
+
+ add_token_u8(&err, dev, OPAL_STARTNAME);
+ add_token_u8(&err, dev, OPAL_STARTCOLUMN);
+ add_token_u64(&err, dev, column);
+ add_token_u8(&err, dev, OPAL_ENDNAME);
+
+ add_token_u8(&err, dev, OPAL_STARTNAME);
+ add_token_u8(&err, dev, OPAL_ENDCOLUMN);
+ add_token_u64(&err, dev, column);
+ add_token_u8(&err, dev, OPAL_ENDNAME);
+
+ add_token_u8(&err, dev, OPAL_ENDLIST);
+
+ if (err)
+ return err;
+
+ return finalize_and_send(dev, parse_and_check_status);
+}
+
static int gen_key(struct opal_dev *dev, void *data)
{
u8 uid[OPAL_UID_LENGTH];
@@ -1129,23 +1160,11 @@ static int get_active_key(struct opal_dev *dev, void *data)
if (err)
return err;
- err = cmd_start(dev, uid, opalmethod[OPAL_GET]);
- add_token_u8(&err, dev, OPAL_STARTLIST);
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 3); /* startCloumn */
- add_token_u8(&err, dev, 10); /* ActiveKey */
- add_token_u8(&err, dev, OPAL_ENDNAME);
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 4); /* endColumn */
- add_token_u8(&err, dev, 10); /* ActiveKey */
- add_token_u8(&err, dev, OPAL_ENDNAME);
- add_token_u8(&err, dev, OPAL_ENDLIST);
- if (err) {
- pr_debug("Error building get active key command\n");
+ err = generic_get_column(dev, uid, OPAL_ACTIVEKEY);
+ if (err)
return err;
- }
- return finalize_and_send(dev, get_active_key_cont);
+ return get_active_key_cont(dev);
}
static int generic_lr_enable_disable(struct opal_dev *dev,
@@ -1754,14 +1773,16 @@ static int activate_lsp(struct opal_dev *dev, void *data)
return finalize_and_send(dev, parse_and_check_status);
}
-static int get_lsp_lifecycle_cont(struct opal_dev *dev)
+/* Determine if we're in the Manufactured Inactive or Active state */
+static int get_lsp_lifecycle(struct opal_dev *dev, void *data)
{
u8 lc_status;
- int error = 0;
+ int err;
- error = parse_and_check_status(dev);
- if (error)
- return error;
+ err = generic_get_column(dev, opaluid[OPAL_LOCKINGSP_UID],
+ OPAL_LIFECYCLE);
+ if (err)
+ return err;
lc_status = response_get_u64(&dev->parsed, 4);
/* 0x08 is Manufactured Inactive */
@@ -1774,49 +1795,19 @@ static int get_lsp_lifecycle_cont(struct opal_dev *dev)
return 0;
}
-/* Determine if we're in the Manufactured Inactive or Active state */
-static int get_lsp_lifecycle(struct opal_dev *dev, void *data)
-{
- int err;
-
- err = cmd_start(dev, opaluid[OPAL_LOCKINGSP_UID],
- opalmethod[OPAL_GET]);
-
- add_token_u8(&err, dev, OPAL_STARTLIST);
-
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 3); /* Start Column */
- add_token_u8(&err, dev, OPAL_LIFECYCLE);
- add_token_u8(&err, dev, OPAL_ENDNAME);
-
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 4); /* End Column */
- add_token_u8(&err, dev, OPAL_LIFECYCLE);
- add_token_u8(&err, dev, OPAL_ENDNAME);
-
- add_token_u8(&err, dev, OPAL_ENDLIST);
-
- if (err) {
- pr_debug("Error Building GET Lifecycle Status command\n");
- return err;
- }
-
- return finalize_and_send(dev, get_lsp_lifecycle_cont);
-}
-
-static int get_msid_cpin_pin_cont(struct opal_dev *dev)
+static int get_msid_cpin_pin(struct opal_dev *dev, void *data)
{
const char *msid_pin;
size_t strlen;
- int error = 0;
+ int err;
- error = parse_and_check_status(dev);
- if (error)
- return error;
+ err = generic_get_column(dev, opaluid[OPAL_C_PIN_MSID], OPAL_PIN);
+ if (err)
+ return err;
strlen = response_get_string(&dev->parsed, 4, &msid_pin);
if (!msid_pin) {
- pr_debug("%s: Couldn't extract PIN from response\n", __func__);
+ pr_debug("Couldn't extract MSID_CPIN from response\n");
return OPAL_INVAL_PARAM;
}
@@ -1829,33 +1820,6 @@ static int get_msid_cpin_pin_cont(struct opal_dev *dev)
return 0;
}
-static int get_msid_cpin_pin(struct opal_dev *dev, void *data)
-{
- int err;
-
- err = cmd_start(dev, opaluid[OPAL_C_PIN_MSID],
- opalmethod[OPAL_GET]);
-
- add_token_u8(&err, dev, OPAL_STARTLIST);
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 3); /* Start Column */
- add_token_u8(&err, dev, 3); /* PIN */
- add_token_u8(&err, dev, OPAL_ENDNAME);
-
- add_token_u8(&err, dev, OPAL_STARTNAME);
- add_token_u8(&err, dev, 4); /* End Column */
- add_token_u8(&err, dev, 3); /* Lifecycle Column */
- add_token_u8(&err, dev, OPAL_ENDNAME);
- add_token_u8(&err, dev, OPAL_ENDLIST);
-
- if (err) {
- pr_debug("Error building Get MSID CPIN PIN command.\n");
- return err;
- }
-
- return finalize_and_send(dev, get_msid_cpin_pin_cont);
-}
-
static int end_opal_session(struct opal_dev *dev, void *data)
{
int err = 0;
--
2.20.1
Powered by blists - more mailing lists