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| author | William Tu <u9012063@gmail.com> | 2019-11-25 11:19:23 -0800 |
|---|---|---|
| committer | William Tu <u9012063@gmail.com> | 2020-03-25 20:26:51 -0700 |
| commit | 3c6d05a02e0fd2cde2f988a0e41a19f47c3d6947 (patch) | |
| tree | 89708e0fa3d945542cc67740c97d5906a7cd0d25 /lib/nx-match.c | |
| parent | f598f46212d698f091408abd6ff6905a16980169 (diff) | |
| download | openvswitch-3c6d05a02e0fd2cde2f988a0e41a19f47c3d6947.tar.gz | |
userspace: Add GTP-U support.
GTP, GPRS Tunneling Protocol, is a group of IP-based communications
protocols used to carry general packet radio service (GPRS) within
GSM, UMTS and LTE networks. GTP protocol has two parts: Signalling
(GTP-Control, GTP-C) and User data (GTP-User, GTP-U). GTP-C is used
for setting up GTP-U protocol, which is an IP-in-UDP tunneling
protocol. Usually GTP is used in connecting between base station for
radio, Serving Gateway (S-GW), and PDN Gateway (P-GW).
This patch implements GTP-U protocol for userspace datapath,
supporting only required header fields and G-PDU message type.
See spec in:
https://tools.ietf.org/html/draft-hmm-dmm-5g-uplane-analysis-00
Tested-at: https://travis-ci.org/github/williamtu/ovs-travis/builds/666518784
Signed-off-by: Feng Yang <yangfengee04@gmail.com>
Co-authored-by: Feng Yang <yangfengee04@gmail.com>
Signed-off-by: Yi Yang <yangyi01@inspur.com>
Co-authored-by: Yi Yang <yangyi01@inspur.com>
Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib/nx-match.c')
| -rw-r--r-- | lib/nx-match.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/nx-match.c b/lib/nx-match.c index 0432ad4de..058816c7b 100644 --- a/lib/nx-match.c +++ b/lib/nx-match.c @@ -1051,7 +1051,7 @@ nx_put_raw(struct ofpbuf *b, enum ofp_version oxm, const struct match *match, ovs_be32 spi_mask; int match_len; - BUILD_ASSERT_DECL(FLOW_WC_SEQ == 41); + BUILD_ASSERT_DECL(FLOW_WC_SEQ == 42); struct nxm_put_ctx ctx = { .output = b, .implied_ethernet = false }; @@ -1191,6 +1191,12 @@ nx_put_raw(struct ofpbuf *b, enum ofp_version oxm, const struct match *match, nxm_put_8m(&ctx, MFF_TUN_ERSPAN_HWID, oxm, flow->tunnel.erspan_hwid, match->wc.masks.tunnel.erspan_hwid); + /* GTP-U */ + nxm_put_8m(&ctx, MFF_TUN_GTPU_FLAGS, oxm, flow->tunnel.gtpu_flags, + match->wc.masks.tunnel.gtpu_flags); + nxm_put_8m(&ctx, MFF_TUN_GTPU_MSGTYPE, oxm, flow->tunnel.gtpu_msgtype, + match->wc.masks.tunnel.gtpu_msgtype); + /* Network Service Header */ nxm_put_8m(&ctx, MFF_NSH_FLAGS, oxm, flow->nsh.flags, match->wc.masks.nsh.flags); |