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netdev-linux: Cast policer rate to uint64_t to avoid overflow

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tc_fill_rate() takes a 64bit int, casting kbits_rate from int
to uint64_t avoids a possible overflow when translating from
kbits to bytes.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Thomas Graf
2014-08-29 12:20:21 +02:00
committed by Ben Pfaff
parent afcea9ea04
commit 1aca400ce9
1 changed files with 1 additions and 1 deletions
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2
lib/netdev-linux.c
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@@ -4042,7 +4042,7 @@ tc_add_policer(struct netdev *netdev, int kbits_rate, int kbits_burst)
memset(&tc_police, 0, sizeof tc_police);
tc_police.action = TC_POLICE_SHOT;
tc_police.mtu = mtu;
tc_fill_rate(&tc_police.rate, (kbits_rate * 1000)/8, mtu);
tc_fill_rate(&tc_police.rate, ((uint64_t) kbits_rate * 1000)/8, mtu);
tc_police.burst = tc_bytes_to_ticks(tc_police.rate.rate,
kbits_burst * 1024);