/[dynamips]/upstream/dynamips-0.2.7-RC1/hv_nio_bridge.c
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Annotation of /upstream/dynamips-0.2.7-RC1/hv_nio_bridge.c

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Revision 7 - (hide annotations)
Sat Oct 6 16:23:47 2007 UTC (12 years, 2 months ago) by dpavlin
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dynamips-0.2.7-RC1

1 dpavlin 1 /*
2 dpavlin 7 * Cisco router simulation platform.
3 dpavlin 1 * Copyright (c) 2006 Christophe Fillot (cf@utc.fr)
4     *
5     * Hypervisor NIO bridge routines.
6     */
7    
8     #include <stdio.h>
9     #include <stdlib.h>
10     #include <unistd.h>
11     #include <string.h>
12     #include <sys/types.h>
13     #include <sys/stat.h>
14     #include <sys/mman.h>
15     #include <signal.h>
16     #include <fcntl.h>
17     #include <errno.h>
18     #include <assert.h>
19     #include <stdarg.h>
20     #include <sys/ioctl.h>
21     #include <sys/types.h>
22     #include <sys/socket.h>
23     #include <arpa/inet.h>
24     #include <pthread.h>
25    
26     #include "utils.h"
27     #include "net.h"
28     #include "crc.h"
29     #include "net_io.h"
30     #include "net_io_bridge.h"
31     #include "registry.h"
32     #include "hypervisor.h"
33    
34     /* Create a new NIO bridge */
35     static int cmd_create(hypervisor_conn_t *conn,int argc,char *argv[])
36     {
37     netio_bridge_t *t;
38    
39     if (!(t = netio_bridge_create(argv[0]))) {
40     hypervisor_send_reply(conn,HSC_ERR_CREATE,1,
41     "unable to create NIO bridge '%s'",
42     argv[0]);
43     return(-1);
44     }
45    
46     netio_bridge_release(argv[0]);
47     hypervisor_send_reply(conn,HSC_INFO_OK,1,"NIO bridge '%s' created",argv[0]);
48     return(0);
49     }
50    
51     /* Delete an NIO bridge */
52     static int cmd_delete(hypervisor_conn_t *conn,int argc,char *argv[])
53     {
54     int res;
55    
56     res = netio_bridge_delete(argv[0]);
57    
58     if (res == 1) {
59     hypervisor_send_reply(conn,HSC_INFO_OK,1,"NIO bridge '%s' deleted",
60     argv[0]);
61     } else {
62     hypervisor_send_reply(conn,HSC_ERR_DELETE,1,
63     "unable to delete NIO bridge '%s'",argv[0]);
64     }
65    
66     return(res);
67     }
68    
69     /*
70     * Add a NIO to a bridge
71     *
72     * Parameters: <bridge_name> <nio_name>
73     */
74     static int cmd_add_nio(hypervisor_conn_t *conn,int argc,char *argv[])
75     {
76     netio_bridge_t *t;
77    
78     if (!(t = hypervisor_find_object(conn,argv[0],OBJ_TYPE_NIO_BRIDGE)))
79     return(-1);
80    
81     if (netio_bridge_add_netio(t,argv[1]) == -1) {
82     netio_bridge_release(argv[0]);
83     hypervisor_send_reply(conn,HSC_ERR_BINDING,1,
84     "unable to bind NIO '%s' to bridge '%s'",
85     argv[1],argv[0]);
86     return(-1);
87     }
88    
89     netio_bridge_release(argv[0]);
90     hypervisor_send_reply(conn,HSC_INFO_OK,1,"NIO '%s' bound.",argv[1]);
91     return(0);
92     }
93    
94     /*
95     * Remove a NIO from a bridge
96     *
97     * Parameters: <bridge_name> <nio_name>
98     */
99     static int cmd_remove_nio(hypervisor_conn_t *conn,int argc,char *argv[])
100     {
101     netio_bridge_t *t;
102    
103     if (!(t = hypervisor_find_object(conn,argv[0],OBJ_TYPE_NIO_BRIDGE)))
104     return(-1);
105    
106     if (netio_bridge_remove_netio(t,argv[1]) == -1) {
107     netio_bridge_release(argv[0]);
108     hypervisor_send_reply(conn,HSC_ERR_BINDING,1,
109     "unable to bind NIO '%s' to bridge '%s'",
110     argv[1],argv[0]);
111     return(-1);
112     }
113    
114     netio_bridge_release(argv[0]);
115     hypervisor_send_reply(conn,HSC_INFO_OK,1,"NIO '%s' unbound.",argv[1]);
116     return(0);
117     }
118    
119     /* Show info about a NIO bridge object */
120     static void cmd_show_list(registry_entry_t *entry,void *opt,int *err)
121     {
122     hypervisor_conn_t *conn = opt;
123     hypervisor_send_reply(conn,HSC_INFO_MSG,0,"%s",entry->name);
124     }
125    
126     /* Bridge switch List */
127     static int cmd_list(hypervisor_conn_t *conn,int argc,char *argv[])
128     {
129     int err = 0;
130     registry_foreach_type(OBJ_TYPE_NIO_BRIDGE,cmd_show_list,conn,&err);
131     hypervisor_send_reply(conn,HSC_INFO_OK,1,"OK");
132     return(0);
133     }
134    
135     /* NIO bridge commands */
136     static hypervisor_cmd_t nio_bridge_cmd_array[] = {
137     { "create", 1, 1, cmd_create, NULL },
138     { "delete", 1, 1, cmd_delete, NULL },
139     { "add_nio", 2, 2, cmd_add_nio, NULL },
140     { "remove_nio", 2, 2, cmd_remove_nio, NULL },
141     { "list", 0, 0, cmd_list, NULL },
142     { NULL, -1, -1, NULL, NULL },
143     };
144    
145     /* Hypervisor NIO bridge initialization */
146     int hypervisor_nio_bridge_init(void)
147     {
148     hypervisor_module_t *module;
149    
150     module = hypervisor_register_module("nio_bridge");
151     assert(module != NULL);
152    
153     hypervisor_register_cmd_array(module,nio_bridge_cmd_array);
154     return(0);
155     }

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