[dpdk-dev] [PATCH v6 1/8] mbuf: support GTP in software packet type parser

Sean Harte seanbh at gmail.com
Fri Sep 29 10:15:00 CEST 2017


On 29 September 2017 at 06:18, Beilei Xing <beilei.xing at intel.com> wrote:
> Add support of GTP-C and GTP-U tunnels in rte_net_get_ptype().
>
> Signed-off-by: Beilei Xing <beilei.xing at intel.com>
> Acked-by: Olivier Matz <olivier.matz at 6wind.com>
> ---
>  lib/librte_mbuf/rte_mbuf_ptype.c |  2 ++
>  lib/librte_mbuf/rte_mbuf_ptype.h | 24 ++++++++++++++++++++++++
>  2 files changed, 26 insertions(+)

<snip>

>  /**
> + * GTP-C (GPRS Tunnelling Protocol) control tunneling packet type.
> + * Packet format:
> + * <'ether type'=0x0800
> + * | 'version'=4, 'protocol'=17
> + * | 'destination port'=2123>
> + * or,
> + * <'ether type'=0x86DD
> + * | 'version'=6, 'next header'=17
> + * | 'destination port'=2123>
> + */
> +#define RTE_PTYPE_TUNNEL_GTPC               0x00007000

This isn't a good description of GTP-C. GTP-C messages have a source
port of 2123, or a destination port of 2123.

> +/**
> + * GTP-U (GPRS Tunnelling Protocol) user data tunneling packet type.
> + * Packet format:
> + * <'ether type'=0x0800
> + * | 'version'=4, 'protocol'=17
> + * | 'destination port'=2152>
> + * or,
> + * <'ether type'=0x86DD
> + * | 'version'=6, 'next header'=17
> + * | 'destination port'=2152>
> + */
> +#define RTE_PTYPE_TUNNEL_GTPU               0x00008000
> +/**
>   * Mask of tunneling packet types.
>   */
>  #define RTE_PTYPE_TUNNEL_MASK               0x0000f000
> --
> 2.5.5
>


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