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| author | Sean Bruno <sbruno@FreeBSD.org> | 2018-03-26 19:53:36 +0000 |
|---|---|---|
| committer | Sean Bruno <sbruno@FreeBSD.org> | 2018-03-26 19:53:36 +0000 |
| commit | e2041bfa7c15f9d23a69a3a3dc5a66299f33b204 (patch) | |
| tree | b7de9316b7ad36acfac022fe295e47920438d3ce /sys/netinet/cc/cc.h | |
| parent | 7953f98e235666fa9d085d042fa9579bc662b65b (diff) | |
| download | src-e2041bfa7c15f9d23a69a3a3dc5a66299f33b204.tar.gz src-e2041bfa7c15f9d23a69a3a3dc5a66299f33b204.zip | |
CC Cubic: fix underflow for cubic_cwnd()
Singed calculations in cubic_cwnd() can result in negative cwnd
value which is then cast to an unsigned value. Values less than
1 mss are generally bad for other parts of the code, also fixed.
Submitted by: Jason Eggleston <jason@eggnet.com>
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D14141
Notes
Notes:
svn path=/head/; revision=331567
Diffstat (limited to 'sys/netinet/cc/cc.h')
| -rw-r--r-- | sys/netinet/cc/cc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/netinet/cc/cc.h b/sys/netinet/cc/cc.h index 7f16a7cbf046..1389b27a335b 100644 --- a/sys/netinet/cc/cc.h +++ b/sys/netinet/cc/cc.h @@ -102,6 +102,8 @@ struct cc_var { #define CCF_ACKNOW 0x0008 /* Will this ack be sent now? */ #define CCF_IPHDR_CE 0x0010 /* Does this packet set CE bit? */ #define CCF_TCPHDR_CWR 0x0020 /* Does this packet set CWR bit? */ +#define CCF_MAX_CWND 0x0040 /* Have we reached maximum cwnd? */ +#define CCF_CHG_MAX_CWND 0x0080 /* Cubic max_cwnd changed, for K */ /* ACK types passed to the ack_received() hook. */ #define CC_ACK 0x0001 /* Regular in sequence ACK. */ |