[v4,1/3] ip_frag: ensure minimum v4 fragmentation length
diff mbox series

Message ID 20200415172547.1421587-2-aconole@redhat.com
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series
  • ip_frag: add a unit test for fragmentation
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Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/iol-testing success Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/checkpatch success coding style OK

Commit Message

Aaron Conole April 15, 2020, 5:25 p.m. UTC
Do a formal parameter check of mtu length, as well as
checking the the various inputs for validity.  If any
aren't acceptable, we bail.

Signed-off-by: Aaron Conole <aconole@redhat.com>
---
 lib/librte_ip_frag/rte_ipv4_fragmentation.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Lukasz Wojciechowski April 17, 2020, 11:52 a.m. UTC | #1
W dniu 15.04.2020 o 19:25, Aaron Conole pisze:
> Do a formal parameter check of mtu length, as well as
> checking the the various inputs for validity.  If any
> aren't acceptable, we bail.
>
> Signed-off-by: Aaron Conole <aconole@redhat.com>
> ---
>   lib/librte_ip_frag/rte_ipv4_fragmentation.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
>
> diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> index 9e9f986cc5..c36678a6d2 100644
> --- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> +++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> @@ -76,6 +76,15 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>   	uint16_t fragment_offset, flag_offset, frag_size;
>   	uint16_t frag_bytes_remaining;
>   
> +	/*
> +	 * Formal parameter checking.
> +	 */
> +	if (unlikely(pkt_in == NULL) || unlikely(pkts_out == NULL) ||
> +	    unlikely(nb_pkts_out == 0) ||
> +	    unlikely(pool_direct == NULL) || unlikely(pool_indirect == NULL) ||
> +	    unlikely(mtu_size < 68))
> +		return -EINVAL;
> +
>   	/*
>   	 * Ensure the IP payload length of all fragments is aligned to a
>   	 * multiple of 8 bytes as per RFC791 section 2.3.

Acked-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>

Patch
diff mbox series

diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index 9e9f986cc5..c36678a6d2 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -76,6 +76,15 @@  rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
 	uint16_t fragment_offset, flag_offset, frag_size;
 	uint16_t frag_bytes_remaining;
 
+	/*
+	 * Formal parameter checking.
+	 */
+	if (unlikely(pkt_in == NULL) || unlikely(pkts_out == NULL) ||
+	    unlikely(nb_pkts_out == 0) ||
+	    unlikely(pool_direct == NULL) || unlikely(pool_indirect == NULL) ||
+	    unlikely(mtu_size < 68))
+		return -EINVAL;
+
 	/*
 	 * Ensure the IP payload length of all fragments is aligned to a
 	 * multiple of 8 bytes as per RFC791 section 2.3.