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| author | Faisal Latif <faisal.latif@intel.com> | 2009-04-27 13:38:31 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-04-27 13:38:31 -0700 |
| commit | c11470f9f4d4490cd7e9563f604c4c7868caf6de (patch) | |
| tree | 3fec0b3fac5499d1c6812a5bcd4ae19cd57d4831 | |
| parent | 53094c388f11d79f742eaf743c9fd740a881f2c0 (diff) | |
| download | linux-c11470f9f4d4490cd7e9563f604c4c7868caf6de.tar.gz | |
RDMA/nes: Check for sequence number wrap-around
check_seq() was not checking if the seq#s have wrapped. Fix it. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_cm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 1efe0beca063..1f7a659e6e9a 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -56,6 +56,7 @@ #include <net/neighbour.h> #include <net/route.h> #include <net/ip_fib.h> +#include <net/tcp.h> #include "nes.h" @@ -1514,7 +1515,7 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph, rcv_wnd = cm_node->tcp_cntxt.rcv_wnd; if (ack_seq != loc_seq_num) err = 1; - else if ((seq + rcv_wnd) < rcv_nxt) + else if (!between(seq, rcv_nxt, (rcv_nxt+rcv_wnd))) err = 1; if (err) { nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " |