ifconfig.c

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00001 /*
00002  * Copyright (C) 2001-2004 by egnite Software GmbH. All rights reserved.
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00007  *
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00037  * modification, are permitted provided that the following conditions
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00040  *    notice, this list of conditions and the following disclaimer.
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00060  * Portions Copyright (c) 1993 by Digital Equipment Corporation.
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00076  * SOFTWARE.
00077  */
00078 
00079 /*
00080  * $Log$
00081  * Revision 1.11  2008/08/28 11:07:45  haraldkipp
00082  * Make use of ioctl if the driver supports this.
00083  *
00084  * Revision 1.10  2008/08/11 07:00:29  haraldkipp
00085  * BSD types replaced by stdint types (feature request #1282721).
00086  *
00087  * Revision 1.9  2008/07/14 13:10:31  haraldkipp
00088  * Added macros to determine Ethernet address types.
00089  *
00090  * Revision 1.8  2005/04/30 16:42:42  chaac
00091  * Fixed bug in handling of NUTDEBUG. Added include for cfg/os.h. If NUTDEBUG
00092  * is defined in NutConf, it will make effect where it is used.
00093  *
00094  * Revision 1.7  2004/03/18 11:08:32  haraldkipp
00095  * Comments updated
00096  *
00097  * Revision 1.6  2004/03/18 10:49:59  haraldkipp
00098  * Comments updated
00099  *
00100  * Revision 1.5  2004/03/16 16:48:45  haraldkipp
00101  * Added Jan Dubiec's H8/300 port.
00102  *
00103  * Revision 1.4  2004/03/08 11:24:19  haraldkipp
00104  * Ugly PPP activation hack replaced by HDLC ioctl.
00105  *
00106  * Revision 1.3  2004/02/25 16:38:20  haraldkipp
00107  * Do not use zero MAC
00108  *
00109  * Revision 1.2  2004/02/02 18:54:22  drsung
00110  * gateway ip address was not set, if static network configuration from EEPROM is used.
00111  *
00112  * Revision 1.1.1.1  2003/05/09 14:41:29  haraldkipp
00113  * Initial using 3.2.1
00114  *
00115  * Revision 1.24  2003/05/06 18:02:14  harald
00116  * PPP hack for simple UART support
00117  *
00118  * Revision 1.23  2003/04/21 17:02:22  harald
00119  * Added comments.
00120  * New PPP state machine implemented.
00121  * Auto config moved to DHCP.
00122  *
00123  * Revision 1.22  2003/03/31 12:03:15  harald
00124  * Adapt new PPP structure
00125  *
00126  * Revision 1.21  2003/02/04 18:14:57  harald
00127  * Version 3 released
00128  *
00129  * Revision 1.20  2003/01/14 16:43:40  harald
00130  * *** empty log message ***
00131  *
00132  * Revision 1.19  2002/11/02 15:18:27  harald
00133  * Library dependencies removed
00134  *
00135  * Revision 1.18  2002/10/31 16:08:09  harald
00136  * *** empty log message ***
00137  *
00138  * Revision 1.17  2002/10/29 15:29:17  harald
00139  * PPP support
00140  *
00141  * Revision 1.16  2002/07/03 16:41:32  harald
00142  * Bugfix: Failed to store gateway
00143  *
00144  * Revision 1.15  2002/06/26 17:29:36  harald
00145  * First pre-release with 2.4 stack
00146  *
00147  */
00148 
00149 #include <cfg/os.h>
00150 #include <string.h>
00151 #include <io.h>
00152 
00153 #include <dev/ppp.h>
00154 
00155 #include <net/if.h>
00156 #include <net/ether.h>
00157 #include <net/route.h>
00158 #include <arpa/inet.h>
00159 #include <netinet/ppp_fsm.h>
00160 #include <netinet/if_ether.h>
00161 
00162 #include <sys/event.h>
00163 #include <dev/uart.h>
00164 #include <sys/confnet.h>
00165 
00166 #include <pro/dhcp.h>
00167 
00168 #ifdef NUTDEBUG
00169 #include <sys/osdebug.h>
00170 #include <net/netdebug.h>
00171 #endif
00172 
00177 
00191 int NutNetIfSetup(NUTDEVICE * dev, uint32_t ip_addr, uint32_t ip_mask, uint32_t gateway)
00192 {
00193     IFNET *nif;
00194 
00195     nif = dev->dev_icb;
00196 
00197     /*
00198      * Use specified or previously used IP address.
00199      */
00200     if (ip_addr == 0 && (ip_addr = confnet.cdn_ip_addr) == 0)
00201         return -1;
00202     nif->if_local_ip = ip_addr;
00203 
00204     /*
00205      * Use specified or default mask.
00206      */
00207     if (ip_mask == 0)
00208         ip_mask = inet_addr("255.255.255.0");
00209     nif->if_mask = ip_mask;
00210 
00211     /*
00212      * Add routing entries.
00213      */
00214     NutIpRouteAdd(ip_addr & ip_mask, ip_mask, 0, dev);
00215     if (gateway)
00216         NutIpRouteAdd(0, 0, gateway, dev);
00217 
00218     /*
00219      * Save configuration in EEPROM.
00220      */
00221     memcpy(confnet.cd_name, dev->dev_name, sizeof(confnet.cd_name));
00222     /* Never save an invalid MAC address. */
00223     if (ETHER_IS_UNICAST(nif->if_mac)) {
00224         memcpy(confnet.cdn_mac, nif->if_mac, sizeof(nif->if_mac));
00225     }
00226     confnet.cdn_ip_addr = ip_addr;
00227     confnet.cdn_ip_mask = ip_mask;
00228 
00229     /*
00230      * Set gateway, if one was provided by the caller. Remove
00231      * gateway, if it's outside of our network.
00232      */
00233     if (gateway || (confnet.cdn_gateway & ip_mask) != (ip_addr & ip_mask))
00234         confnet.cdn_gateway = gateway;
00235 
00236     return NutNetSaveConfig();
00237 }
00238 
00274 int NutNetIfConfig(CONST char *name, void *params, uint32_t ip_addr, uint32_t ip_mask)
00275 {
00276     return NutNetIfConfig2(name, params, ip_addr, ip_mask, 0);
00277 }
00278 
00309 int NutNetIfConfig2(CONST char *name, void *params, uint32_t ip_addr, uint32_t ip_mask, uint32_t gateway)
00310 {
00311     NUTDEVICE *dev;
00312     IFNET *nif;
00313 
00314     /*
00315      * Check if this is a registered network device.
00316      */
00317     if ((dev = NutDeviceLookup(name)) == 0 || dev->dev_type != IFTYP_NET)
00318         return -1;
00319 
00320     /*
00321      * Setup Ethernet interfaces.
00322      */
00323     nif = dev->dev_icb;
00324     if (nif->if_type == IFT_ETHER) {
00325         /* Check if ioctl is supported. */
00326         if (dev->dev_ioctl) {
00327             uint32_t flags;
00328 
00329             /* Driver has ioctl, use it. */
00330             dev->dev_ioctl(dev, SIOCGIFFLAGS, &flags);
00331             dev->dev_ioctl(dev, SIOCSIFADDR, params);
00332             flags |= IFF_UP;
00333             dev->dev_ioctl(dev, SIOCSIFFLAGS, &flags);
00334         } else {
00335             /* No ioctl, set MAC address to start driver. */
00336             memcpy(nif->if_mac, params, sizeof(nif->if_mac));
00337         }
00338         return NutNetIfSetup(dev, ip_addr, ip_mask, gateway);
00339     }
00340 
00341     /*
00342      * Setup PPP interfaces.
00343      */
00344     else if (nif->if_type == IFT_PPP) {
00345         PPPDCB *dcb = dev->dev_dcb;
00346 
00347         /*
00348          * Set the interface's IP address, make sure that the state
00349          * change queue is empty and switch hardware driver into 
00350          * network mode.
00351          */
00352         dcb->dcb_local_ip = ip_addr;
00353         dcb->dcb_ip_mask = ip_mask ? ip_mask : 0xffffffff;
00354         NutEventBroadcast(&dcb->dcb_state_chg);
00355         _ioctl(dcb->dcb_fd, HDLC_SETIFNET, &dev);
00356 
00357         /*
00358          * Wait for network layer up and configure the interface on
00359          * success.
00360          */
00361         if (NutEventWait(&dcb->dcb_state_chg, 60000) == 0 && dcb->dcb_ipcp_state == PPPS_OPENED) {
00362             return NutNetIfSetup(dev, dcb->dcb_local_ip, dcb->dcb_ip_mask, dcb->dcb_remote_ip);
00363         }
00364     }
00365     return -1;
00366 }
00367 

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