DPDK  22.11.0-rc4
rte_gtp.h
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1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 1982, 1986, 1990, 1993
3  * The Regents of the University of California.
4  * Copyright(c) 2010-2014 Intel Corporation.
5  * All rights reserved.
6  */
7 
8 #ifndef _RTE_GTP_H_
9 #define _RTE_GTP_H_
10 
17 #include <stdint.h>
18 #include <rte_byteorder.h>
19 
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23 
30 __extension__
31 struct rte_gtp_hdr {
32  union {
33  uint8_t gtp_hdr_info;
34  struct {
35 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
36  uint8_t pn:1;
37  uint8_t s:1;
38  uint8_t e:1;
39  uint8_t res1:1;
40  uint8_t pt:1;
41  uint8_t ver:3;
42 #elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
43  uint8_t ver:3;
44  uint8_t pt:1;
45  uint8_t res1:1;
46  uint8_t e:1;
47  uint8_t s:1;
48  uint8_t pn:1;
49 #endif
50  };
51  };
52  uint8_t msg_type;
55 } __rte_packed;
56 
57 /* Optional word of GTP header, present if any of E, S, PN is set. */
58 struct rte_gtp_hdr_ext_word {
59  rte_be16_t sqn;
60  uint8_t npdu;
61  uint8_t next_ext;
62 } __rte_packed;
63 
68 __extension__
70  uint8_t ext_hdr_len;
71 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
72  uint8_t type:4;
73  uint8_t qmp:1;
74  uint8_t pad:3;
75  uint8_t spare:2;
76  uint8_t qfi:6;
77 #else
78  uint8_t pad:3;
79  uint8_t qmp:1;
80  uint8_t type:4;
81  uint8_t qfi:6;
82  uint8_t spare:2;
83 #endif
84  uint8_t data[0];
85 } __rte_packed;
86 
91 __extension__
93  uint8_t ext_hdr_len;
94 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
95  uint8_t type:4;
96  uint8_t qmp:1;
97  uint8_t snp:1;
98  uint8_t spare_dl1:2;
99  uint8_t ppp:1;
100  uint8_t rqi:1;
101  uint8_t qfi:6;
102 #else
103  uint8_t spare_dl1:2;
104  uint8_t snp:1;
105  uint8_t qmp:1;
106  uint8_t type:4;
107  uint8_t qfi:6;
108  uint8_t rqi:1;
109  uint8_t ppp:1;
110 #endif
111  uint8_t data[0];
112 } __rte_packed;
113 
118 __extension__
120  uint8_t ext_hdr_len;
121 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
122  uint8_t type:4;
123  uint8_t qmp:1;
124  uint8_t dl_delay_ind:1;
125  uint8_t ul_delay_ind:1;
126  uint8_t snp:1;
127  uint8_t n_delay_ind:1;
128  uint8_t spare_ul2:1;
129  uint8_t qfi:6;
130 #else
131  uint8_t snp:1;
132  uint8_t ul_delay_ind:1;
133  uint8_t dl_delay_ind:1;
134  uint8_t qmp:1;
135  uint8_t type:4;
136  uint8_t qfi:6;
137  uint8_t spare_ul2:1;
138  uint8_t n_delay_ind:1;
139 #endif
140  uint8_t data[0];
141 } __rte_packed;
142 
144 #define RTE_ETHER_GTP_HLEN \
145  (sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr))
146 /* GTP next protocol type */
147 #define RTE_GTP_TYPE_IPV4 0x40
148 #define RTE_GTP_TYPE_IPV6 0x60
149 /* GTP destination port number */
150 #define RTE_GTPC_UDP_PORT 2123
151 #define RTE_GTPU_UDP_PORT 2152
153 #ifdef __cplusplus
154 }
155 #endif
156 
157 #endif /* RTE_GTP_H_ */
#define __rte_packed
Definition: rte_common.h:83
uint8_t ul_delay_ind
Definition: rte_gtp.h:125
uint8_t ver
Definition: rte_gtp.h:41
uint8_t e
Definition: rte_gtp.h:38
uint8_t res1
Definition: rte_gtp.h:39
uint32_t rte_be32_t
uint8_t msg_type
Definition: rte_gtp.h:52
uint8_t dl_delay_ind
Definition: rte_gtp.h:124
rte_be32_t teid
Definition: rte_gtp.h:54
uint8_t s
Definition: rte_gtp.h:37
rte_be16_t plen
Definition: rte_gtp.h:53
uint8_t pn
Definition: rte_gtp.h:36
uint8_t ext_hdr_len
Definition: rte_gtp.h:93
uint8_t gtp_hdr_info
Definition: rte_gtp.h:33
uint8_t pt
Definition: rte_gtp.h:40
uint16_t rte_be16_t