diff options
| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2019-03-20 14:45:09 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2019-03-20 14:45:37 +0000 |
| commit | f7a9461e29147c47ce2bb81bd157ac1833cf5eb1 (patch) | |
| tree | 6f3b4f4850cf9f116acc1dda3f0515259673e13b /lib/librte_ip_frag/rte_ipv6_reassembly.c | |
| parent | 8e6d9d118f6105a3627b64a7949e1fb0b145879e (diff) | |
New upstream version 16.11.9upstream/16.11.9upstream-16.11-stable
Change-Id: Ia1ac246c53e5050b6a29d6952fb668ad6c782996
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_ip_frag/rte_ipv6_reassembly.c')
| -rw-r--r-- | lib/librte_ip_frag/rte_ipv6_reassembly.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/lib/librte_ip_frag/rte_ipv6_reassembly.c b/lib/librte_ip_frag/rte_ipv6_reassembly.c index d9b5d690..9f080d6e 100644 --- a/lib/librte_ip_frag/rte_ipv6_reassembly.c +++ b/lib/librte_ip_frag/rte_ipv6_reassembly.c @@ -88,8 +88,11 @@ ipv6_frag_reassemble(struct ip_frag_pkt *fp) /* previous fragment found. */ if (fp->frags[i].ofs + fp->frags[i].len == ofs) { + RTE_ASSERT(curr_idx != i); + /* adjust start of the last fragment data. */ - rte_pktmbuf_adj(m, (uint16_t)(m->l2_len + m->l3_len)); + rte_pktmbuf_adj(m, + (uint16_t)(m->l2_len + m->l3_len)); rte_pktmbuf_chain(fp->frags[i].mb, m); /* this mbuf should not be accessed directly */ @@ -164,12 +167,13 @@ ipv6_frag_reassemble(struct ip_frag_pkt *fp) #define FRAG_OFFSET(x) (rte_cpu_to_be_16(x) >> 3) struct rte_mbuf * rte_ipv6_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, - struct rte_ip_frag_death_row *dr, struct rte_mbuf *mb, uint64_t tms, - struct ipv6_hdr *ip_hdr, struct ipv6_extension_fragment *frag_hdr) + struct rte_ip_frag_death_row *dr, struct rte_mbuf *mb, uint64_t tms, + struct ipv6_hdr *ip_hdr, struct ipv6_extension_fragment *frag_hdr) { struct ip_frag_pkt *fp; struct ip_frag_key key; - uint16_t ip_len, ip_ofs; + uint16_t ip_ofs; + int32_t ip_len; rte_memcpy(&key.src_dst[0], ip_hdr->src_addr, 16); rte_memcpy(&key.src_dst[2], ip_hdr->dst_addr, 16); @@ -180,15 +184,17 @@ rte_ipv6_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, ip_ofs = FRAG_OFFSET(frag_hdr->frag_data) * 8; /* - * as per RFC2460, payload length contains all extension headers as well. - * since we don't support anything but frag headers, this is what we remove - * from the payload len. + * as per RFC2460, payload length contains all extension headers + * as well. + * since we don't support anything but frag headers, + * this is what we remove from the payload len. */ ip_len = rte_be_to_cpu_16(ip_hdr->payload_len) - sizeof(*frag_hdr); IP_FRAG_LOG(DEBUG, "%s:%d:\n" "mbuf: %p, tms: %" PRIu64 - ", key: <" IPv6_KEY_BYTES_FMT ", %#x>, ofs: %u, len: %u, flags: %#x\n" + ", key: <" IPv6_KEY_BYTES_FMT ", %#x>, " + "ofs: %u, len: %d, flags: %#x\n" "tbl: %p, max_cycles: %" PRIu64 ", entry_mask: %#x, " "max_entries: %u, use_entries: %u\n\n", __func__, __LINE__, @@ -197,6 +203,12 @@ rte_ipv6_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, tbl, tbl->max_cycles, tbl->entry_mask, tbl->max_entries, tbl->use_entries); + /* check that fragment length is greater then zero. */ + if (ip_len <= 0) { + IP_FRAG_MBUF2DR(dr, mb); + return NULL; + } + /* try to find/add entry into the fragment's table. */ fp = ip_frag_find(tbl, dr, &key, tms); if (fp == NULL) { |