ceph: zero unused message header, footer fields

We shouldn't leak any prior memory contents to other parties.  And random
data, particularly in the 'version' field, can cause problems down the
line.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-05-11 15:01:51 -07:00
parent 9abf82b8bc
commit 45c6ceb547

View File

@ -2085,15 +2085,19 @@ struct ceph_msg *ceph_msg_new(int type, int front_len,
kref_init(&m->kref);
INIT_LIST_HEAD(&m->list_head);
m->hdr.tid = 0;
m->hdr.type = cpu_to_le16(type);
m->hdr.priority = cpu_to_le16(CEPH_MSG_PRIO_DEFAULT);
m->hdr.version = 0;
m->hdr.front_len = cpu_to_le32(front_len);
m->hdr.middle_len = 0;
m->hdr.data_len = cpu_to_le32(page_len);
m->hdr.data_off = cpu_to_le16(page_off);
m->hdr.priority = cpu_to_le16(CEPH_MSG_PRIO_DEFAULT);
m->hdr.reserved = 0;
m->footer.front_crc = 0;
m->footer.middle_crc = 0;
m->footer.data_crc = 0;
m->footer.flags = 0;
m->front_max = front_len;
m->front_is_vmalloc = false;
m->more_to_follow = false;