diff options
| -rw-r--r-- | source3/smbd/smb2_server.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/source3/smbd/smb2_server.c b/source3/smbd/smb2_server.c index 11b5ed8bf0..288cc79b54 100644 --- a/source3/smbd/smb2_server.c +++ b/source3/smbd/smb2_server.c @@ -455,9 +455,30 @@ static void smb2_set_operation_credit(struct smbd_server_connection *sconn, SMB_ASSERT(sconn->smb2.max_credits >= sconn->smb2.credits_granted); - /* Remember what we gave out. */ - credits_granted = MIN(credits_requested, (sconn->smb2.max_credits - - sconn->smb2.credits_granted)); + if (credits_requested) { + uint16_t modified_credits_requested; + uint32_t multiplier; + + /* + * Split up max_credits into 1/16ths, and then scale + * the requested credits by how many 16ths have been + * currently granted. Less than 1/16th == grant all + * requested (100%), scale down as more have been + * granted. Never ask for less than 1 as the client + * asked for at least 1. JRA. + */ + + multiplier = 16 - (((sconn->smb2.credits_granted * 16) / sconn->smb2.max_credits) % 16); + + modified_credits_requested = (multiplier * credits_requested) / 16; + if (modified_credits_requested == 0) { + modified_credits_requested = 1; + } + + /* Remember what we gave out. */ + credits_granted = MIN(modified_credits_requested, + (sconn->smb2.max_credits - sconn->smb2.credits_granted)); + } if (credits_granted == 0 && sconn->smb2.credits_granted == 0) { /* First negprot packet, or ensure the client credits can |