diff options
| author | Pablo Neira Ayuso <pablo@gnumonks.org> | 2014-03-18 18:09:09 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@gnumonks.org> | 2014-03-18 18:30:05 +0100 |
| commit | 23ddc1f778abc7e4ae649003e0d0052859afd5a6 (patch) | |
| tree | 125874eabcab52b38017786fb00c088bf5f92b79 | |
| parent | 2cbf0a14830ef97ed97a61da4d669c0be03f5ddb (diff) | |
gtp: fix incorrect UDP header length field
With this fix, osmo-sgsn doesn't ignore our tunneled packet
anymore. It was complaining about incorrect packet length
for received packets.
And osmo-ggsn is working in my testbed :-).
| -rw-r--r-- | gtp.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -632,7 +632,7 @@ static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev) unsigned int payload_len; struct gtp_pktinfo pktinfo; unsigned int proto = ntohs(skb->protocol); - int err; + int gtph_len, err; rcu_read_lock(); switch (proto) { @@ -668,13 +668,15 @@ static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev) switch (pktinfo.pctx->gtp_version) { case GTP_V0: uh->source = uh->dest = htons(GTP0_PORT); + gtph_len = sizeof(struct gtp0_header); break; case GTP_V1: uh->source = uh->dest = htons(GTP1U_PORT); + gtph_len = sizeof(struct gtp1_header); break; } - uh->len = htons(sizeof(struct udphdr) + payload_len); + uh->len = htons(sizeof(struct udphdr) + payload_len + gtph_len); uh->check = 0; pr_info("gtp -> UDP src: %u dst: %u (len %u)\n", |