/[dynamips]/upstream/dynamips-0.2.5/atm.h
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /upstream/dynamips-0.2.5/atm.h

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Sat Oct 6 16:01:44 2007 UTC (12 years, 2 months ago) by dpavlin
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import 0.2.5 from upstream

1 dpavlin 1 /*
2     * Cisco 7200 (Predator) simulation platform.
3     * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4     *
5     * ATM definitions.
6     */
7    
8     #ifndef __ATM_H__
9     #define __ATM_H__
10    
11     #include <pthread.h>
12    
13     #include "utils.h"
14     #include "mempool.h"
15     #include "net_io.h"
16    
17     /* ATM payload size */
18     #define ATM_HDR_SIZE 5
19     #define ATM_PAYLOAD_SIZE 48
20     #define ATM_CELL_SIZE (ATM_HDR_SIZE + ATM_PAYLOAD_SIZE)
21     #define ATM_AAL5_TRAILER_SIZE 8
22     #define ATM_AAL5_TRAILER_POS (ATM_CELL_SIZE - ATM_AAL5_TRAILER_SIZE)
23    
24     /* ATM header structure */
25     #define ATM_HDR_VPI_MASK 0xFFF00000
26     #define ATM_HDR_VPI_SHIFT 20
27     #define ATM_HDR_VCI_MASK 0x000FFFF0
28     #define ATM_HDR_VCI_SHIFT 4
29     #define ATM_HDR_PTI_MASK 0x0000000E
30     #define ATM_HDR_PTI_SHIFT 1
31    
32     /* PTI bits */
33     #define ATM_PTI_EOP 0x00000002 /* End of packet */
34     #define ATM_PTI_CONGESTION 0x00000004 /* Congestion detected */
35     #define ATM_PTI_NETWORK 0x00000008 /* Network traffic */
36    
37     /* VP-level switch table */
38     typedef struct atmsw_vp_conn atmsw_vp_conn_t;
39     struct atmsw_vp_conn {
40     atmsw_vp_conn_t *next;
41     netio_desc_t *input,*output;
42     u_int vpi_in,vpi_out;
43     m_uint64_t cell_cnt;
44     };
45    
46     /* VC-level switch table */
47     typedef struct atmsw_vc_conn atmsw_vc_conn_t;
48     struct atmsw_vc_conn {
49     atmsw_vc_conn_t *next;
50     netio_desc_t *input,*output;
51     u_int vpi_in,vci_in;
52     u_int vpi_out,vci_out;
53     m_uint64_t cell_cnt;
54     };
55    
56     /* Virtual ATM switch table */
57     #define ATMSW_NIO_MAX 32
58     #define ATMSW_VP_HASH_SIZE 256
59     #define ATMSW_VC_HASH_SIZE 1024
60    
61     typedef struct atmsw_table atmsw_table_t;
62     struct atmsw_table {
63     char *name;
64     pthread_mutex_t lock;
65     mempool_t mp;
66     m_uint64_t cell_drop;
67     atmsw_vp_conn_t *vp_table[ATMSW_VP_HASH_SIZE];
68     atmsw_vc_conn_t *vc_table[ATMSW_VC_HASH_SIZE];
69     };
70    
71     #define ATMSW_LOCK(t) pthread_mutex_lock(&(t)->lock)
72     #define ATMSW_UNLOCK(t) pthread_mutex_unlock(&(t)->lock)
73    
74     /* Compute HEC field for ATM header */
75     m_uint8_t atm_compute_hec(m_uint8_t *cell_header);
76    
77     /* Insert HEC field into an ATM header */
78     void atm_insert_hec(m_uint8_t *cell_header);
79    
80     /* Update the CRC on the data block one byte at a time */
81     m_uint32_t atm_update_crc(m_uint32_t crc_accum,m_uint8_t *ptr,int len);
82    
83     /* Initialize ATM code (for HEC checksums) */
84     void atm_init(void);
85    
86     /* Acquire a reference to an ATM switch (increment reference count) */
87     atmsw_table_t *atmsw_acquire(char *name);
88    
89     /* Release an ATM switch (decrement reference count) */
90     int atmsw_release(char *name);
91    
92     /* Create a virtual switch table */
93     atmsw_table_t *atmsw_create_table(char *name);
94    
95     /* Create a VP switch connection */
96     int atmsw_create_vpc(atmsw_table_t *t,char *nio_input,u_int vpi_in,
97     char *nio_output,u_int vpi_out);
98    
99     /* Delete a VP switch connection */
100     int atmsw_delete_vpc(atmsw_table_t *t,char *nio_input,u_int vpi_in,
101     char *nio_output,u_int vpi_out);
102    
103     /* Create a VC switch connection */
104     int atmsw_create_vcc(atmsw_table_t *t,
105     char *input,u_int vpi_in,u_int vci_in,
106     char *output,u_int vpi_out,u_int vci_out);
107    
108     /* Delete a VC switch connection */
109     int atmsw_delete_vcc(atmsw_table_t *t,
110     char *nio_input,u_int vpi_in,u_int vci_in,
111     char *nio_output,u_int vpi_out,u_int vci_out);
112    
113     /* Save the configuration of an ATM switch */
114     void atmsw_save_config(atmsw_table_t *t,FILE *fd);
115    
116     /* Save configurations of all ATM switches */
117     void atmsw_save_config_all(FILE *fd);
118    
119     /* Delete an ATM switch */
120     int atmsw_delete(char *name);
121    
122     /* Delete all ATM switches */
123     int atmsw_delete_all(void);
124    
125     /* Start a virtual ATM switch */
126     int atmsw_start(char *filename);
127    
128     #endif

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