Looks good to me,

Acked-by: Jarno Rajahalme <[email protected]>


> On Apr 4, 2014, at 8:22 PM, Ben Pfaff <[email protected]> wrote:
> 
> The other 32-bit data fields in protocol headers were already using
> ovs_16aligned_be32, but MPLS and SCTP had been overlooked.  This fixes
> the failure of test 681 seen here:
> https://buildd.debian.org/status/fetch.php?pkg=openvswitch&arch=sparc&ver=2.1.0%2Bgit20140325-1&stamp=1396438624
> 
> Signed-off-by: Ben Pfaff <[email protected]>
> ---
> lib/flow.c      |  5 +++--
> lib/ofp-print.c |  3 ++-
> lib/packets.c   | 12 ++++++------
> lib/packets.h   |  6 +++---
> 4 files changed, 14 insertions(+), 12 deletions(-)
> 
> diff --git a/lib/flow.c b/lib/flow.c
> index e1ea75e..f97d7a9 100644
> --- a/lib/flow.c
> +++ b/lib/flow.c
> @@ -88,10 +88,11 @@ parse_mpls(struct ofpbuf *b, struct flow *flow)
>     int idx = 0;
> 
>     while ((mh = ofpbuf_try_pull(b, sizeof *mh))) {
> +        ovs_be32 mpls_lse = get_16aligned_be32(&mh->mpls_lse);
>         if (idx < FLOW_MAX_MPLS_LABELS) {
> -            flow->mpls_lse[idx++] = mh->mpls_lse;
> +            flow->mpls_lse[idx++] = mpls_lse;
>         }
> -        if (mh->mpls_lse & htonl(MPLS_BOS_MASK)) {
> +        if (mpls_lse & htonl(MPLS_BOS_MASK)) {
>             break;
>         }
>     }
> diff --git a/lib/ofp-print.c b/lib/ofp-print.c
> index e0e565c..02f3db0 100644
> --- a/lib/ofp-print.c
> +++ b/lib/ofp-print.c
> @@ -78,7 +78,8 @@ ofp_packet_to_string(const void *data, size_t len)
>         ds_put_format(&ds, " udp_csum:%"PRIx16, ntohs(uh->udp_csum));
>     } else if (flow.nw_proto == IPPROTO_SCTP && l4_size >= SCTP_HEADER_LEN) {
>         struct sctp_header *sh = ofpbuf_l4(&buf);
> -        ds_put_format(&ds, " sctp_csum:%"PRIx32, ntohl(sh->sctp_csum));
> +        ds_put_format(&ds, " sctp_csum:%"PRIx32,
> +                      ntohl(get_16aligned_be32(&sh->sctp_csum)));
>     }
> 
>     ds_put_char(&ds, '\n');
> diff --git a/lib/packets.c b/lib/packets.c
> index 89ee324..6244c3f 100644
> --- a/lib/packets.c
> +++ b/lib/packets.c
> @@ -1,5 +1,5 @@
> /*
> - * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
> + * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
>  *
>  * Licensed under the Apache License, Version 2.0 (the "License");
>  * you may not use this file except in compliance with the License.
> @@ -288,7 +288,7 @@ set_mpls_lse(struct ofpbuf *packet, ovs_be32 mpls_lse)
>         struct mpls_hdr *mh = ofpbuf_l2_5(packet);
> 
>         /* Update mpls label stack entry. */
> -        mh->mpls_lse = mpls_lse;
> +        put_16aligned_be32(&mh->mpls_lse, mpls_lse);
>     }
> }
> 
> @@ -331,7 +331,7 @@ pop_mpls(struct ofpbuf *packet, ovs_be16 ethtype)
>         size_t len = packet->l2_5_ofs;
> 
>         set_ethertype(packet, ethtype);
> -        if (mh->mpls_lse & htonl(MPLS_BOS_MASK)) {
> +        if (get_16aligned_be32(&mh->mpls_lse) & htonl(MPLS_BOS_MASK)) {
>             ofpbuf_set_l2_5(packet, NULL);
>         }
>         /* Shift the l2 header forward. */
> @@ -858,15 +858,15 @@ packet_set_sctp_port(struct ofpbuf *packet, ovs_be16 
> src, ovs_be16 dst)
>     ovs_be32 old_csum, old_correct_csum, new_csum;
>     uint16_t tp_len = ofpbuf_l4_size(packet);
> 
> -    old_csum = sh->sctp_csum;
> -    sh->sctp_csum = 0;
> +    old_csum = get_16aligned_be32(&sh->sctp_csum);
> +    put_16aligned_be32(&sh->sctp_csum, 0);
>     old_correct_csum = crc32c((void *)sh, tp_len);
> 
>     sh->sctp_src = src;
>     sh->sctp_dst = dst;
> 
>     new_csum = crc32c((void *)sh, tp_len);
> -    sh->sctp_csum = old_csum ^ old_correct_csum ^ new_csum;
> +    put_16aligned_be32(&sh->sctp_csum, old_csum ^ old_correct_csum ^ 
> new_csum);
> }
> 
> const char *
> diff --git a/lib/packets.h b/lib/packets.h
> index 22817af..eca24d5 100644
> --- a/lib/packets.h
> +++ b/lib/packets.h
> @@ -363,7 +363,7 @@ BUILD_ASSERT_DECL(VLAN_ETH_HEADER_LEN == sizeof(struct 
> vlan_eth_header));
> #define MPLS_HLEN           4
> 
> struct mpls_hdr {
> -    ovs_be32 mpls_lse;
> +    ovs_16aligned_be32 mpls_lse;
> };
> BUILD_ASSERT_DECL(MPLS_HLEN == sizeof(struct mpls_hdr));
> 
> @@ -510,8 +510,8 @@ BUILD_ASSERT_DECL(ICMP_HEADER_LEN == sizeof(struct 
> icmp_header));
> struct sctp_header {
>     ovs_be16 sctp_src;
>     ovs_be16 sctp_dst;
> -    ovs_be32 sctp_vtag;
> -    ovs_be32 sctp_csum;
> +    ovs_16aligned_be32 sctp_vtag;
> +    ovs_16aligned_be32 sctp_csum;
> };
> BUILD_ASSERT_DECL(SCTP_HEADER_LEN == sizeof(struct sctp_header));
> 
> -- 
> 1.8.5.3
> 
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