diff options
Diffstat (limited to 'source4/libcli/smb2/transport.c')
| -rw-r--r-- | source4/libcli/smb2/transport.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/source4/libcli/smb2/transport.c b/source4/libcli/smb2/transport.c index af19fcb0a9..8eb60a06f1 100644 --- a/source4/libcli/smb2/transport.c +++ b/source4/libcli/smb2/transport.c @@ -140,6 +140,44 @@ void smb2_transport_dead(struct smb2_transport *transport, NTSTATUS status) } } +static bool smb2_handle_oplock_break(struct smb2_transport *transport, + const DATA_BLOB *blob) +{ + uint8_t *hdr; + uint16_t opcode; + uint64_t seqnum; + + hdr = blob->data+NBT_HDR_SIZE; + + if (blob->length < (SMB2_MIN_SIZE+0x18)) { + DEBUG(1,("Discarding smb2 oplock reply of size %u\n", + blob->length)); + return false; + } + + opcode = SVAL(hdr, SMB2_HDR_OPCODE); + seqnum = BVAL(hdr, SMB2_HDR_MESSAGE_ID); + + if ((opcode != SMB2_OP_BREAK) || + (seqnum != UINT64_MAX)) { + return false; + } + + if (transport->oplock.handler) { + uint8_t *body = hdr+SMB2_HDR_BODY; + struct smb2_handle h; + uint8_t level; + + level = CVAL(body, 0x02); + smb2_pull_handle(body+0x08, &h); + + transport->oplock.handler(transport, &h, level, + transport->oplock.private_data); + } + + return true; +} + /* we have a full request in our receive buffer - match it to a pending request and process @@ -167,6 +205,11 @@ static NTSTATUS smb2_transport_finish_recv(void *private, DATA_BLOB blob) goto error; } + if (smb2_handle_oplock_break(transport, &blob)) { + talloc_free(buffer); + return NT_STATUS_OK; + } + flags = IVAL(hdr, SMB2_HDR_FLAGS); seqnum = BVAL(hdr, SMB2_HDR_MESSAGE_ID); |