ceph_msg_footer is 21 bytes long, while ceph_msg_footer_old is only 13.
Don't skip too much when CEPH_FEATURE_MSG_AUTH isn't negotiated.
Cc: stable@xxxxxxxxxxxxxxx # 3.19+
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
---
net/ceph/messenger.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index fec20819a5ea..dd7c1b7f932b 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2284,6 +2284,13 @@ static int read_partial_msg_data(struct ceph_connection *con)
return 1; /* must return > 0 to indicate success */
}
+static size_t sizeof_footer(struct ceph_connection *con)
+{
+ return (con->peer_features & CEPH_FEATURE_MSG_AUTH) ?
+ sizeof(struct ceph_msg_footer) :
+ sizeof(struct ceph_msg_footer_old);
+}
+
/*
* read (part of) a message.
*/
@@ -2335,7 +2342,7 @@ static int read_partial_message(struct ceph_connection *con)
ceph_pr_addr(&con->peer_addr.in_addr),
seq, con->in_seq + 1);
con->in_base_pos = -front_len - middle_len - data_len -
- sizeof(m->footer);
+ sizeof_footer(con);
con->in_tag = CEPH_MSGR_TAG_READY;
return 1;
} else if ((s64)seq - (s64)con->in_seq > 1) {
@@ -2360,7 +2367,7 @@ static int read_partial_message(struct ceph_connection *con)
/* skip this message */
dout("alloc_msg said skip message\n");
con->in_base_pos = -front_len - middle_len - data_len -
- sizeof(m->footer);
+ sizeof_footer(con);
con->in_tag = CEPH_MSGR_TAG_READY;
con->in_seq++;
return 1;
@@ -2402,11 +2409,7 @@ static int read_partial_message(struct ceph_connection *con)
}
/* footer */
- if (need_sign)
- size = sizeof(m->footer);
- else
- size = sizeof(m->old_footer);
-
+ size = sizeof_footer(con);
end += size;
ret = read_partial(con, end, size, &m->footer);
if (ret <= 0)
--
2.4.3
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
