diff options
Diffstat (limited to 'usr.sbin/bootpd/getether.c')
-rw-r--r-- | usr.sbin/bootpd/getether.c | 374 |
1 files changed, 0 insertions, 374 deletions
diff --git a/usr.sbin/bootpd/getether.c b/usr.sbin/bootpd/getether.c deleted file mode 100644 index 724a376..0000000 --- a/usr.sbin/bootpd/getether.c +++ /dev/null @@ -1,374 +0,0 @@ -/* - * getether.c : get the ethernet address of an interface - * - * All of this code is quite system-specific. As you may well - * guess, it took a good bit of detective work to figure out! - * - * If you figure out how to do this on another system, - * please let me know. <gwr@mc.com> - */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <ctype.h> -#include <syslog.h> - -#include "report.h" -#define EALEN 6 - -#if defined(ultrix) || (defined(__osf__) && defined(__alpha)) -/* - * This is really easy on Ultrix! Thanks to - * Harald Lundberg <hl@tekla.fi> for this code. - * - * The code here is not specific to the Alpha, but that was the - * only symbol we could find to identify DEC's version of OSF. - * (Perhaps we should just define DEC in the Makefile... -gwr) - */ - -#include <sys/ioctl.h> -#include <net/if.h> /* struct ifdevea */ - -getether(ifname, eap) - char *ifname, *eap; -{ - int rc = -1; - int fd; - struct ifdevea phys; - bzero(&phys, sizeof(phys)); - strcpy(phys.ifr_name, ifname); - if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - report(LOG_ERR, "getether: socket(INET,DGRAM) failed"); - return -1; - } - if (ioctl(fd, SIOCRPHYSADDR, &phys) < 0) { - report(LOG_ERR, "getether: ioctl SIOCRPHYSADDR failed"); - } else { - bcopy(&phys.current_pa[0], eap, EALEN); - rc = 0; - } - close(fd); - return rc; -} - -#define GETETHER -#endif /* ultrix|osf1 */ - - -#ifdef SUNOS - -#include <sys/sockio.h> -#include <sys/time.h> /* needed by net_if.h */ -#include <net/nit_if.h> /* for NIOCBIND */ -#include <net/if.h> /* for struct ifreq */ - -getether(ifname, eap) - char *ifname; /* interface name from ifconfig structure */ - char *eap; /* Ether address (output) */ -{ - int rc = -1; - - struct ifreq ifrnit; - int nit; - - bzero((char *) &ifrnit, sizeof(ifrnit)); - strncpy(&ifrnit.ifr_name[0], ifname, IFNAMSIZ); - - nit = open("/dev/nit", 0); - if (nit < 0) { - report(LOG_ERR, "getether: open /dev/nit: %s", - get_errmsg()); - return rc; - } - do { - if (ioctl(nit, NIOCBIND, &ifrnit) < 0) { - report(LOG_ERR, "getether: NIOCBIND on nit"); - break; - } - if (ioctl(nit, SIOCGIFADDR, &ifrnit) < 0) { - report(LOG_ERR, "getether: SIOCGIFADDR on nit"); - break; - } - bcopy(&ifrnit.ifr_addr.sa_data[0], eap, EALEN); - rc = 0; - } while (0); - close(nit); - return rc; -} - -#define GETETHER -#endif /* SUNOS */ - - -#if defined(__FreeBSD__) || defined(__NetBSD__) -/* Thanks to John Brezak <brezak@ch.hp.com> for this code. */ -#include <sys/ioctl.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <net/if_types.h> - -getether(ifname, eap) - char *ifname; /* interface name from ifconfig structure */ - char *eap; /* Ether address (output) */ -{ - int fd, rc = -1; - register int n; - struct ifreq ibuf[16], ifr; - struct ifconf ifc; - register struct ifreq *ifrp, *ifend; - - /* Fetch the interface configuration */ - fd = socket(AF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - report(LOG_ERR, "getether: socket %s: %s", ifname, get_errmsg()); - return (fd); - } - ifc.ifc_len = sizeof(ibuf); - ifc.ifc_buf = (caddr_t) ibuf; - if (ioctl(fd, SIOCGIFCONF, (char *) &ifc) < 0 || - ifc.ifc_len < sizeof(struct ifreq)) { - report(LOG_ERR, "getether: SIOCGIFCONF: %s", get_errmsg); - goto out; - } - /* Search interface configuration list for link layer address. */ - ifrp = ibuf; - ifend = (struct ifreq *) ((char *) ibuf + ifc.ifc_len); - while (ifrp < ifend) { - /* Look for interface */ - if (strcmp(ifname, ifrp->ifr_name) == 0 && - ifrp->ifr_addr.sa_family == AF_LINK && - ((struct sockaddr_dl *) &ifrp->ifr_addr)->sdl_type == IFT_ETHER) { - bcopy(LLADDR((struct sockaddr_dl *) &ifrp->ifr_addr), eap, EALEN); - rc = 0; - break; - } - /* Bump interface config pointer */ - n = ifrp->ifr_addr.sa_len + sizeof(ifrp->ifr_name); - if (n < sizeof(*ifrp)) - n = sizeof(*ifrp); - ifrp = (struct ifreq *) ((char *) ifrp + n); - } - - out: - close(fd); - return (rc); -} - -#define GETETHER -#endif /* __NetBSD__ */ - - -#ifdef SVR4 -/* - * This is for "Streams TCP/IP" by Lachman Associates. - * They sure made this cumbersome! -gwr - */ - -#include <sys/sockio.h> -#include <sys/dlpi.h> -#include <stropts.h> -#ifndef NULL -#define NULL 0 -#endif - -getether(ifname, eap) - char *ifname; /* interface name from ifconfig structure */ - char *eap; /* Ether address (output) */ -{ - int rc = -1; - char devname[32]; - char tmpbuf[sizeof(union DL_primitives) + 16]; - struct strbuf cbuf; - int fd, flags; - union DL_primitives *dlp; - char *enaddr; - int unit = -1; /* which unit to attach */ - - sprintf(devname, "/dev/%s", ifname); - fd = open(devname, 2); - if (fd < 0) { - /* Try without the trailing digit. */ - char *p = devname + 5; - while (isalpha(*p)) - p++; - if (isdigit(*p)) { - unit = *p - '0'; - *p = '\0'; - } - fd = open(devname, 2); - if (fd < 0) { - report(LOG_ERR, "getether: open %s: %s", - devname, get_errmsg()); - return rc; - } - } -#ifdef DL_ATTACH_REQ - /* - * If this is a "Style 2" DLPI, then we must "attach" first - * to tell the driver which unit (board, port) we want. - * For now, decide this based on the device name. - * (Should do "info_req" and check dl_provider_style ...) - */ - if (unit >= 0) { - memset(tmpbuf, 0, sizeof(tmpbuf)); - dlp = (union DL_primitives *) tmpbuf; - dlp->dl_primitive = DL_ATTACH_REQ; - dlp->attach_req.dl_ppa = unit; - cbuf.buf = tmpbuf; - cbuf.len = DL_ATTACH_REQ_SIZE; - if (putmsg(fd, &cbuf, NULL, 0) < 0) { - report(LOG_ERR, "getether: attach: putmsg: %s", get_errmsg()); - goto out; - } - /* Recv the ack. */ - cbuf.buf = tmpbuf; - cbuf.maxlen = sizeof(tmpbuf); - flags = 0; - if (getmsg(fd, &cbuf, NULL, &flags) < 0) { - report(LOG_ERR, "getether: attach: getmsg: %s", get_errmsg()); - goto out; - } - /* - * Check the type, etc. - */ - if (dlp->dl_primitive == DL_ERROR_ACK) { - report(LOG_ERR, "getether: attach: dlpi_errno=%d, unix_errno=%d", - dlp->error_ack.dl_errno, - dlp->error_ack.dl_unix_errno); - goto out; - } - if (dlp->dl_primitive != DL_OK_ACK) { - report(LOG_ERR, "getether: attach: not OK or ERROR"); - goto out; - } - } /* unit >= 0 */ -#endif /* DL_ATTACH_REQ */ - - /* - * Get the Ethernet address the same way the ARP module - * does when it is pushed onto a new stream (bind). - * One should instead be able just do an dl_info_req - * but many drivers do not supply the hardware address - * in the response to dl_info_req (they MUST supply it - * for dl_bind_ack because the ARP module requires it). - */ - memset(tmpbuf, 0, sizeof(tmpbuf)); - dlp = (union DL_primitives *) tmpbuf; - dlp->dl_primitive = DL_BIND_REQ; - dlp->bind_req.dl_sap = 0x8FF; /* XXX - Unused SAP */ - cbuf.buf = tmpbuf; - cbuf.len = DL_BIND_REQ_SIZE; - if (putmsg(fd, &cbuf, NULL, 0) < 0) { - report(LOG_ERR, "getether: bind: putmsg: %s", get_errmsg()); - goto out; - } - /* Recv the ack. */ - cbuf.buf = tmpbuf; - cbuf.maxlen = sizeof(tmpbuf); - flags = 0; - if (getmsg(fd, &cbuf, NULL, &flags) < 0) { - report(LOG_ERR, "getether: bind: getmsg: %s", get_errmsg()); - goto out; - } - /* - * Check the type, etc. - */ - if (dlp->dl_primitive == DL_ERROR_ACK) { - report(LOG_ERR, "getether: bind: dlpi_errno=%d, unix_errno=%d", - dlp->error_ack.dl_errno, - dlp->error_ack.dl_unix_errno); - goto out; - } - if (dlp->dl_primitive != DL_BIND_ACK) { - report(LOG_ERR, "getether: bind: not OK or ERROR"); - goto out; - } - if (dlp->bind_ack.dl_addr_offset == 0) { - report(LOG_ERR, "getether: bind: ack has no address"); - goto out; - } - if (dlp->bind_ack.dl_addr_length < EALEN) { - report(LOG_ERR, "getether: bind: ack address truncated"); - goto out; - } - /* - * Copy the Ethernet address out of the message. - */ - enaddr = tmpbuf + dlp->bind_ack.dl_addr_offset; - memcpy(eap, enaddr, EALEN); - rc = 0; - - out: - close(fd); - return rc; -} - -#define GETETHER -#endif /* SVR4 */ - - -#ifdef linux -/* - * This is really easy on Linux! This version (for linux) - * written by Nigel Metheringham <nigelm@ohm.york.ac.uk> - * - * The code is almost identical to the Ultrix code - however - * the names are different to confuse the innocent :-) - * Most of this code was stolen from the Ultrix bit above. - */ - -#include <sys/ioctl.h> -#include <net/if.h> /* struct ifreq */ - -/* In a properly configured system this should be either sys/socketio.h - or sys/sockios.h, but on my distribution these don't line up correctly */ -#include <linux/sockios.h> /* Needed for IOCTL defs */ - -getether(ifname, eap) - char *ifname, *eap; -{ - int rc = -1; - int fd; - struct ifreq phys; - bzero(&phys, sizeof(phys)); - strcpy(phys.ifr_name, ifname); - if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - report(LOG_ERR, "getether: socket(INET,DGRAM) failed"); - return -1; - } - if (ioctl(fd, SIOCGIFHWADDR, &phys) < 0) { - report(LOG_ERR, "getether: ioctl SIOCGIFHWADDR failed"); - } else { - bcopy(phys.ifr_hwaddr, eap, EALEN); - rc = 0; - } - close(fd); - return rc; -} - -#define GETETHER -#endif /* linux */ - - -/* If we don't know how on this system, just return an error. */ -#ifndef GETETHER -getether(ifname, eap) - char *ifname, *eap; -{ - return -1; -} - -#endif /* !GETETHER */ - -/* - * Local Variables: - * tab-width: 4 - * c-indent-level: 4 - * c-argdecl-indent: 4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: -4 - * c-label-offset: -4 - * c-brace-offset: 0 - * End: - */ |