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geneve: fix options len parsing as 32-bits words

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See https://tools.ietf.org/html/rfc8926 3.4. second paragraph Opt Len

Change-Id: I191d835651b2fa64eeb4ec4271497cf3342554be
Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>
Type: fix
This commit is contained in:
Mohammed Hawari
2021-03-31 17:26:19 +02:00
committed by Damjan Marion
parent e263685ac8
commit 4b1bacffe3
1 changed files with 3 additions and 2 deletions
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src/plugins/geneve/geneve_packet.h
+3 -2
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@@ -171,14 +171,15 @@ vnet_set_geneve_version (geneve_header_t * h, u8 version)
static inline u8
vnet_get_geneve_options_len (geneve_header_t * h)
{
return ((h->first_word & GENEVE_OPTLEN_MASK) >> GENEVE_OPTLEN_SHIFT);
return ((h->first_word & GENEVE_OPTLEN_MASK) >> GENEVE_OPTLEN_SHIFT) << 2;
}
static inline void
vnet_set_geneve_options_len (geneve_header_t * h, u8 len)
{
ASSERT ((len & 0x3) == 0);
h->first_word &= ~(GENEVE_OPTLEN_MASK);
h->first_word |= ((len << GENEVE_OPTLEN_SHIFT) & GENEVE_OPTLEN_MASK);
h->first_word |= ((len << (GENEVE_OPTLEN_SHIFT - 2)) & GENEVE_OPTLEN_MASK);
}
static inline u8