diff options
| -rw-r--r-- | source4/smb_server/smb/reply.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/source4/smb_server/smb/reply.c b/source4/smb_server/smb/reply.c index bae6b2ca79..7ce5f5dbaa 100644 --- a/source4/smb_server/smb/reply.c +++ b/source4/smb_server/smb/reply.c @@ -848,6 +848,7 @@ static void reply_read_and_X_send(struct ntvfs_request *ntvfs) void smbsrv_reply_read_and_X(struct smbsrv_request *req) { union smb_read *io; + uint16_t high_part = 0; /* parse request */ if (req->in.wct != 12) { @@ -869,13 +870,18 @@ void smbsrv_reply_read_and_X(struct smbsrv_request *req) io->readx.in.read_for_execute = false; } - if (req->smb_conn->negotiate.client_caps & CAP_LARGE_READX) { - uint32_t high_part = IVAL(req->in.vwv, VWV(7)); - if (high_part == 1) { - io->readx.in.maxcnt |= high_part << 16; - } + if (req->smb_conn->negotiate.protocol == PROTOCOL_NT1) { + high_part = SVAL(req->in.vwv, VWV(7)); } - + if (high_part != UINT16_MAX) { + io->readx.in.maxcnt |= high_part << 16; + } + + /* + * Windows truncates the length to 0x10000 + */ + io->readx.in.maxcnt = MIN(io->readx.in.maxcnt, 0x10000); + /* the 64 bit variant */ if (req->in.wct == 12) { uint32_t offset_high = IVAL(req->in.vwv, VWV(10)); |