projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 459aa660 | 2 | #ifndef _GTP_H_ |
| 9b8ac4f9 | 3 | #define _GTP_H_ |
| 459aa660 PN |
4 | |
| 5 | /* General GTP protocol related definitions. */ | |
| 6 | ||
| 7 | #define GTP0_PORT 3386 | |
| 8 | #define GTP1U_PORT 2152 | |
| 9 | ||
| 9af41cc3 WD |
10 | /* GTP messages types */ |
| 11 | #define GTP_ECHO_REQ 1 /* Echo Request */ | |
| 12 | #define GTP_ECHO_RSP 2 /* Echo Response */ | |
| 459aa660 PN |
13 | #define GTP_TPDU 255 |
| 14 | ||
| 9af41cc3 WD |
15 | #define GTPIE_RECOVERY 14 |
| 16 | ||
| 459aa660 PN |
17 | struct gtp0_header { /* According to GSM TS 09.60. */ |
| 18 | __u8 flags; | |
| 19 | __u8 type; | |
| 20 | __be16 length; | |
| 21 | __be16 seq; | |
| 22 | __be16 flow; | |
| 23 | __u8 number; | |
| 24 | __u8 spare[3]; | |
| 25 | __be64 tid; | |
| 26 | } __attribute__ ((packed)); | |
| 27 | ||
| 28 | struct gtp1_header { /* According to 3GPP TS 29.060. */ | |
| 29 | __u8 flags; | |
| 30 | __u8 type; | |
| 31 | __be16 length; | |
| 32 | __be32 tid; | |
| 33 | } __attribute__ ((packed)); | |
| 34 | ||
| 9af41cc3 WD |
35 | struct gtp1_header_long { /* According to 3GPP TS 29.060. */ |
| 36 | __u8 flags; | |
| 37 | __u8 type; | |
| 38 | __be16 length; | |
| 39 | __be32 tid; | |
| 40 | __be16 seq; | |
| 41 | __u8 npdu; | |
| 42 | __u8 next; | |
| 43 | } __packed; | |
| 44 | ||
| 45 | /* GTP Information Element */ | |
| 46 | struct gtp_ie { | |
| 47 | __u8 tag; | |
| 48 | __u8 val; | |
| 49 | } __packed; | |
| 50 | ||
| 51 | struct gtp0_packet { | |
| 52 | struct gtp0_header gtp0_h; | |
| 53 | struct gtp_ie ie; | |
| 54 | } __packed; | |
| 55 | ||
| 56 | struct gtp1u_packet { | |
| 57 | struct gtp1_header_long gtp1u_h; | |
| 58 | struct gtp_ie ie; | |
| 59 | } __packed; | |
| 60 | ||
| e3acda7a WD |
61 | struct gtp_pdu_session_info { /* According to 3GPP TS 38.415. */ |
| 62 | u8 pdu_type; | |
| 63 | u8 qfi; | |
| 64 | }; | |
| 65 | ||
| 81dd9849 WD |
66 | static inline bool netif_is_gtp(const struct net_device *dev) |
| 67 | { | |
| 68 | return dev->rtnl_link_ops && | |
| 69 | !strcmp(dev->rtnl_link_ops->kind, "gtp"); | |
| 70 | } | |
| 71 | ||
| 459aa660 PN |
72 | #define GTP1_F_NPDU 0x01 |
| 73 | #define GTP1_F_SEQ 0x02 | |
| 74 | #define GTP1_F_EXTHDR 0x04 | |
| 75 | #define GTP1_F_MASK 0x07 | |
| 76 | ||
| 77 | #endif |