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comparison packages/net/tcpip/current/src/lib/network_support.c @ 103:95f3e12a6327 ecos-sw-2000-06-23

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Merge from eCos master repository on 2000-06-23-16:41:10-BST
author jlarmour
date Fri, 23 Jun 2000 17:06:31 +0000
parents ced4577552cd
children 84e4bde58b26
comparison
equal deleted inserted replaced
102:6409b6d94dd7 103:95f3e12a6327
40 //####BSDCOPYRIGHTEND#### 40 //####BSDCOPYRIGHTEND####
41 //========================================================================== 41 //==========================================================================
42 //#####DESCRIPTIONBEGIN#### 42 //#####DESCRIPTIONBEGIN####
43 // 43 //
44 // Author(s): gthomas 44 // Author(s): gthomas
45 // Contributors: gthomas 45 // Contributors: gthomas, sorin@netappi.com ("Sorin Babeanu"), hmt
46 // Date: 2000-01-10 46 // Date: 2000-01-10
47 // Purpose: 47 // Purpose:
48 // Description: 48 // Description:
49 // 49 //
50 // 50 //
68 #include <net/route.h> 68 #include <net/route.h>
69 69
70 #include <cyg/infra/diag.h> 70 #include <cyg/infra/diag.h>
71 #include <cyg/kernel/kapi.h> 71 #include <cyg/kernel/kapi.h>
72 72
73 #include <stdio.h> // for 'sprintf()'
74
73 #include <bootp.h> 75 #include <bootp.h>
74 #include <network.h> 76 #include <network.h>
75 #include <arpa/inet.h> 77 #include <arpa/inet.h>
76 78
77 #ifdef CYGHWR_NET_DRIVER_ETH0 79 #ifdef CYGHWR_NET_DRIVER_ETH0
85 const char *eth1_name = "eth1"; 87 const char *eth1_name = "eth1";
86 #endif 88 #endif
87 89
88 #define _string(s) #s 90 #define _string(s) #s
89 #define string(s) _string(s) 91 #define string(s) _string(s)
92
93
94 #ifdef CYGPKG_NET_NLOOP
95 #if 0 < CYGPKG_NET_NLOOP
96 //
97 // Initialize loopback interface ---------- Added by sorin@netappi.com
98 //
99 cyg_bool_t init_loopback_interface(int lo)
100 {
101 struct sockaddr_in *addrp;
102 struct ifreq ifr;
103 int s;
104 int one = 1;
105 struct ecos_rtentry route;
106 struct in_addr netmask, gateway;
107
108 //diag_printf("Init_loopback_interface\n");
109 s = socket(AF_INET, SOCK_DGRAM, 0);
110 if (s < 0) {
111 perror("socket");
112 return false;
113 }
114 if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one))) {
115 perror("setsockopt");
116 return false;
117 }
118
119 addrp = (struct sockaddr_in *) &ifr.ifr_addr;
120 memset(addrp, 0, sizeof(*addrp));
121 addrp->sin_family = AF_INET;
122 addrp->sin_len = sizeof(*addrp);
123 addrp->sin_port = 0;
124 // Make an address 127.0.<lo>.1 to manage multiple loopback ifs.
125 // (There is normally only 1, so it's the standard 127.0.0.1)
126 addrp->sin_addr.s_addr = htonl((0x100 * lo) + INADDR_LOOPBACK) ;
127
128 // Init the one we were told to
129 sprintf(ifr.ifr_name, "lo%d", lo);
130
131 if (ioctl(s, SIOCSIFADDR, &ifr)) {
132 perror("SIOCIFADDR");
133 return false;
134 }
135
136 #if 1 < CYGPKG_NET_NLOOP
137 // We cheat to make different nets for multiple loopback devs
138 addrp->sin_addr.s_addr = netmask.s_addr = htonl(IN_CLASSC_NET);
139 #else
140 //
141 addrp->sin_addr.s_addr = netmask.s_addr = htonl(IN_CLASSA_NET);
142 #endif
143 if (ioctl(s, SIOCSIFNETMASK, &ifr)) {
144 perror("SIOCSIFNETMASK");
145 return false;
146 }
147 ifr.ifr_flags = IFF_UP | IFF_BROADCAST | IFF_RUNNING;
148 if (ioctl(s, SIOCSIFFLAGS, &ifr)) {
149 perror("SIOCSIFFLAGS");
150 return false;
151 }
152
153 gateway.s_addr = htonl(INADDR_LOOPBACK);
154 memset(&route, 0, sizeof(route));
155 addrp->sin_family = AF_INET;
156 addrp->sin_port = 0;
157 addrp->sin_addr.s_addr = htonl((0x100 * lo) + INADDR_LOOPBACK) & netmask.s_addr;
158 memcpy(&route.rt_dst, addrp, sizeof(*addrp));
159 addrp->sin_addr = netmask;
160 memcpy(&route.rt_genmask, addrp, sizeof(*addrp));
161 addrp->sin_addr = gateway;
162 memcpy(&route.rt_gateway, addrp, sizeof(*addrp));
163
164 route.rt_dev = ifr.ifr_name;
165 route.rt_flags = RTF_UP|RTF_GATEWAY;
166 route.rt_metric = 0;
167
168 if (ioctl(s, SIOCADDRT, &route)) {
169 diag_printf("Route - dst: %s", inet_ntoa(((struct sockaddr_in *)&route.rt_dst)->sin_addr));
170 diag_printf(", mask: %s", inet_ntoa(((struct sockaddr_in *)&route.rt_genmask)->sin_addr));
171 diag_printf(", gateway: %s\n", inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
172 if (errno != EEXIST) {
173 perror("SIOCADDRT 3");
174 return false;
175 }
176 }
177 close(s);
178 return true;
179 }
180 #endif
181 #endif
182
90 183
91 #if defined(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP) \ 184 #if defined(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP) \
92 || defined(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP) 185 || defined(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP)
93 // 186 //
94 // Internal function which builds up a fake BOOTP database for 187 // Internal function which builds up a fake BOOTP database for
150 // Initialize network interface[s] using BOOTP/DHCP 243 // Initialize network interface[s] using BOOTP/DHCP
151 // 244 //
152 void 245 void
153 init_all_network_interfaces(void) 246 init_all_network_interfaces(void)
154 { 247 {
248 static volatile int in_init_all_network_interfaces = 0;
249
250 cyg_scheduler_lock();
251 while ( in_init_all_network_interfaces ) {
252 // Another thread is doing this...
253 cyg_scheduler_unlock();
254 cyg_thread_delay( 10 );
255 cyg_scheduler_lock();
256 }
257 in_init_all_network_interfaces = 1;
258 cyg_scheduler_unlock();
259
155 #ifdef CYGHWR_NET_DRIVER_ETH0 260 #ifdef CYGHWR_NET_DRIVER_ETH0
156 if ( ! eth0_up ) { // Make this call idempotent 261 if ( ! eth0_up ) { // Make this call idempotent
157 #ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP 262 #ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP
158 // Perform a complete initialization, using BOOTP/DHCP 263 // Perform a complete initialization, using BOOTP/DHCP
159 eth0_up = true; 264 eth0_up = true;
220 eth1_up = false; 325 eth1_up = false;
221 } 326 }
222 } 327 }
223 #endif 328 #endif
224 #endif 329 #endif
330
331 #ifdef CYGPKG_NET_NLOOP
332 #if 0 < CYGPKG_NET_NLOOP
333 {
334 static int loop_init = 0;
335 int i;
336 if ( 0 == loop_init++ )
337 for ( i = 0; i < CYGPKG_NET_NLOOP; i++ )
338 init_loopback_interface( i );
339 }
340 #endif
341 #endif
342
343 // Open the monitor to other threads.
344 in_init_all_network_interfaces = 0;
225 } 345 }