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Support matching and modifying IP ECN bits.

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Signed-off-by: Justin Pettit <jpettit@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Justin Pettit
2011-11-02 23:34:15 -07:00
parent 9e44d71563
commit 530180fd5a
21 changed files with 146 additions and 72 deletions
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7
lib/dpif-netdev.c
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@@ -1086,12 +1086,9 @@ dp_netdev_set_ip_tos(struct ip_header *nh, uint8_t new_tos)
{
uint8_t *field = &nh->ip_tos;
/* Set the DSCP bits and preserve the ECN bits. */
uint8_t new = new_tos | (nh->ip_tos & IP_ECN_MASK);
nh->ip_csum = recalc_csum16(nh->ip_csum, htons((uint16_t)*field),
htons((uint16_t) new));
*field = new;
htons((uint16_t) new_tos));
*field = new_tos;
}
static void