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nbd/server: rename clientflags var in nbd_negotiate_options 

Rename 'clientflags' to just 'option'. This variable has nothing to do
with flags, but is a single integer representing the option requested
by the client.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170707152918.23086-9-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
master
Vladimir Sementsov-Ogievskiy 2017-07-07 18:29:16 +03:00 committed by Eric Blake
parent 4875196163
commit 7f9039cdaa
1 changed files with 19 additions and 19 deletions
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38
nbd/server.c
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@ -415,7 +415,7 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
while (1) {
int ret;
uint32_t clientflags, length;
uint32_t option, length;
uint64_t magic;
if (nbd_read(client->ioc, &magic, sizeof(magic), errp) < 0) {
@ -428,12 +428,12 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
return -EINVAL;
}
if (nbd_read(client->ioc, &clientflags,
sizeof(clientflags), errp) < 0) {
if (nbd_read(client->ioc, &option,
sizeof(option), errp) < 0) {
error_prepend(errp, "read failed: ");
return -EINVAL;
}
clientflags = be32_to_cpu(clientflags);
option = be32_to_cpu(option);
if (nbd_read(client->ioc, &length, sizeof(length), errp) < 0) {
error_prepend(errp, "read failed: ");
@ -441,15 +441,15 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
}
length = be32_to_cpu(length);
TRACE("Checking option 0x%" PRIx32, clientflags);
TRACE("Checking option 0x%" PRIx32, option);
if (client->tlscreds &&
client->ioc == (QIOChannel *)client->sioc) {
QIOChannel *tioc;
if (!fixedNewstyle) {
error_setg(errp, "Unsupported option 0x%" PRIx32, clientflags);
error_setg(errp, "Unsupported option 0x%" PRIx32, option);
return -EINVAL;
}
switch (clientflags) {
switch (option) {
case NBD_OPT_STARTTLS:
tioc = nbd_negotiate_handle_starttls(client, length, errp);
if (!tioc) {
@ -462,7 +462,7 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
case NBD_OPT_EXPORT_NAME:
/* No way to return an error to client, so drop connection */
error_setg(errp, "Option 0x%x not permitted before TLS",
clientflags);
option);
return -EINVAL;
default:
@ -471,21 +471,21 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
}
ret = nbd_negotiate_send_rep_err(client->ioc,
NBD_REP_ERR_TLS_REQD,
clientflags, errp,
option, errp,
"Option 0x%" PRIx32
"not permitted before TLS",
clientflags);
option);
if (ret < 0) {
return ret;
}
/* Let the client keep trying, unless they asked to quit */
if (clientflags == NBD_OPT_ABORT) {
if (option == NBD_OPT_ABORT) {
return 1;
}
break;
}
} else if (fixedNewstyle) {
switch (clientflags) {
switch (option) {
case NBD_OPT_LIST:
ret = nbd_negotiate_handle_list(client, length, errp);
if (ret < 0) {
@ -497,7 +497,7 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
/* NBD spec says we must try to reply before
* disconnecting, but that we must also tolerate
* guests that don't wait for our reply. */
nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK, clientflags,
nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK, option,
&local_err);
if (local_err != NULL) {
@ -518,12 +518,12 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
if (client->tlscreds) {
ret = nbd_negotiate_send_rep_err(client->ioc,
NBD_REP_ERR_INVALID,
clientflags, errp,
option, errp,
"TLS already enabled");
} else {
ret = nbd_negotiate_send_rep_err(client->ioc,
NBD_REP_ERR_POLICY,
clientflags, errp,
option, errp,
"TLS not configured");
}
if (ret < 0) {
@ -536,10 +536,10 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
}
ret = nbd_negotiate_send_rep_err(client->ioc,
NBD_REP_ERR_UNSUP,
clientflags, errp,
option, errp,
"Unsupported option 0x%"
PRIx32,
clientflags);
option);
if (ret < 0) {
return ret;
}
@ -550,12 +550,12 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
* If broken new-style we should drop the connection
* for anything except NBD_OPT_EXPORT_NAME
*/
switch (clientflags) {
switch (option) {
case NBD_OPT_EXPORT_NAME:
return nbd_negotiate_handle_export_name(client, length, errp);
default:
error_setg(errp, "Unsupported option 0x%" PRIx32, clientflags);
error_setg(errp, "Unsupported option 0x%" PRIx32, option);
return -EINVAL;
}
}