Enhance the api parse_ipv6_ext_hdrs to return the fragmentation header to be used in later patches.
Signed-off-by: Darrell Ball <[email protected]> --- lib/conntrack.c | 5 +++-- lib/flow.c | 23 ++++++++++++++--------- lib/flow.h | 3 ++- 3 files changed, 19 insertions(+), 12 deletions(-) diff --git a/lib/conntrack.c b/lib/conntrack.c index 562e767..bcd3b20 100644 --- a/lib/conntrack.c +++ b/lib/conntrack.c @@ -1308,7 +1308,6 @@ conntrack_execute(struct conntrack *ct, struct dp_packet_batch *pkt_batch, const struct nat_action_info_t *nat_action_info, long long now) { - struct dp_packet *packet; struct conn_lookup_ctx ctx; @@ -1566,7 +1565,9 @@ extract_l3_ipv6(struct conn_key *key, const void *data, size_t size, uint8_t nw_proto = ip6->ip6_nxt; uint8_t nw_frag = 0; - if (!parse_ipv6_ext_hdrs(&data, &size, &nw_proto, &nw_frag)) { + const struct ovs_16aligned_ip6_frag *frag_hdr; + if (!parse_ipv6_ext_hdrs(&data, &size, &nw_proto, &nw_frag, + &frag_hdr)) { return false; } diff --git a/lib/flow.c b/lib/flow.c index 38ff29c..0283e6d 100644 --- a/lib/flow.c +++ b/lib/flow.c @@ -455,7 +455,8 @@ invalid: static inline bool parse_ipv6_ext_hdrs__(const void **datap, size_t *sizep, uint8_t *nw_proto, - uint8_t *nw_frag) + uint8_t *nw_frag, + const struct ovs_16aligned_ip6_frag **frag_hdr) { while (1) { if (OVS_LIKELY((*nw_proto != IPPROTO_HOPOPTS) @@ -502,17 +503,17 @@ parse_ipv6_ext_hdrs__(const void **datap, size_t *sizep, uint8_t *nw_proto, return false; } } else if (*nw_proto == IPPROTO_FRAGMENT) { - const struct ovs_16aligned_ip6_frag *frag_hdr = *datap; + *frag_hdr = *datap; - *nw_proto = frag_hdr->ip6f_nxt; - if (!data_try_pull(datap, sizep, sizeof *frag_hdr)) { + *nw_proto = (*frag_hdr)->ip6f_nxt; + if (!data_try_pull(datap, sizep, sizeof **frag_hdr)) { return false; } /* We only process the first fragment. */ - if (frag_hdr->ip6f_offlg != htons(0)) { + if ((*frag_hdr)->ip6f_offlg != htons(0)) { *nw_frag = FLOW_NW_FRAG_ANY; - if ((frag_hdr->ip6f_offlg & IP6F_OFF_MASK) != htons(0)) { + if (((*frag_hdr)->ip6f_offlg & IP6F_OFF_MASK) != htons(0)) { *nw_frag |= FLOW_NW_FRAG_LATER; *nw_proto = IPPROTO_FRAGMENT; return true; @@ -524,9 +525,11 @@ parse_ipv6_ext_hdrs__(const void **datap, size_t *sizep, uint8_t *nw_proto, bool parse_ipv6_ext_hdrs(const void **datap, size_t *sizep, uint8_t *nw_proto, - uint8_t *nw_frag) + uint8_t *nw_frag, + const struct ovs_16aligned_ip6_frag **frag_hdr) { - return parse_ipv6_ext_hdrs__(datap, sizep, nw_proto, nw_frag); + return parse_ipv6_ext_hdrs__(datap, sizep, nw_proto, nw_frag, + frag_hdr); } bool @@ -840,7 +843,9 @@ miniflow_extract(struct dp_packet *packet, struct miniflow *dst) nw_ttl = nh->ip6_hlim; nw_proto = nh->ip6_nxt; - if (!parse_ipv6_ext_hdrs__(&data, &size, &nw_proto, &nw_frag)) { + const struct ovs_16aligned_ip6_frag *frag_hdr; + if (!parse_ipv6_ext_hdrs__(&data, &size, &nw_proto, &nw_frag, + &frag_hdr)) { goto out; } } else { diff --git a/lib/flow.h b/lib/flow.h index 770a07a..7a9eb47 100644 --- a/lib/flow.h +++ b/lib/flow.h @@ -129,7 +129,8 @@ void flow_compose(struct dp_packet *, const struct flow *, void packet_expand(struct dp_packet *, const struct flow *, size_t size); bool parse_ipv6_ext_hdrs(const void **datap, size_t *sizep, uint8_t *nw_proto, - uint8_t *nw_frag); + uint8_t *nw_frag, + const struct ovs_16aligned_ip6_frag **frag_hdr); ovs_be16 parse_dl_type(const struct eth_header *data_, size_t size); bool parse_nsh(const void **datap, size_t *sizep, struct ovs_key_nsh *key); -- 1.9.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
