diff options
Diffstat (limited to 'c/src/libnetworking/nfs/bootp_subr.c')
| -rw-r--r-- | c/src/libnetworking/nfs/bootp_subr.c | 960 |
1 files changed, 960 insertions, 0 deletions
diff --git a/c/src/libnetworking/nfs/bootp_subr.c b/c/src/libnetworking/nfs/bootp_subr.c new file mode 100644 index 0000000000..f07ce6bd48 --- /dev/null +++ b/c/src/libnetworking/nfs/bootp_subr.c @@ -0,0 +1,960 @@ +/* $Id$ */ + +/* + * Copyright (c) 1995 Gordon Ross, Adam Glass + * Copyright (c) 1992 Regents of the University of California. + * All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * based on: + * nfs/krpc_subr.c + * $NetBSD: krpc_subr.c,v 1.10 1995/08/08 20:43:43 gwr Exp $ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/conf.h> +#include <sys/sockio.h> +#include <sys/proc.h> +#include <sys/mount.h> +#include <sys/mbuf.h> +#include <sys/reboot.h> +#include <sys/socket.h> +#include <sys/socketvar.h> + +#include <net/if.h> +#include <net/route.h> + +#include <netinet/in.h> +#include <net/if_types.h> +#include <net/if_dl.h> +#include <netinet/if_ether.h> + +#include <nfs/rpcv2.h> +#include <nfs/nfsproto.h> +#include <nfs/nfs.h> +#include <nfs/nfsdiskless.h> +#include <nfs/krpc.h> +#include <nfs/xdr_subs.h> + + +#define BOOTP_MIN_LEN 300 /* Minimum size of bootp udp packet */ + +/* + * What is the longest we will wait before re-sending a request? + * Note this is also the frequency of "RPC timeout" messages. + * The re-send loop count sup linearly to this maximum, so the + * first complaint will happen after (1+2+3+4+5)=15 seconds. + */ +#define MAX_RESEND_DELAY 5 /* seconds */ + +/* Definitions from RFC951 */ +struct bootp_packet { + u_int8_t op; + u_int8_t htype; + u_int8_t hlen; + u_int8_t hops; + u_int32_t xid; + u_int16_t secs; + u_int16_t flags; + struct in_addr ciaddr; + struct in_addr yiaddr; + struct in_addr siaddr; + struct in_addr giaddr; + unsigned char chaddr[16]; + char sname[64]; + char file[128]; + unsigned char vend[256]; +}; + +#define IPPORT_BOOTPC 68 +#define IPPORT_BOOTPS 67 + +extern int nfs_diskless_valid; +extern struct nfsv3_diskless nfsv3_diskless; + +/* mountd RPC */ +static int md_mount __P((struct sockaddr_in *mdsin, char *path, + u_char *fhp, int *fhsizep, struct nfs_args *args,struct proc *procp)); +static int md_lookup_swap __P((struct sockaddr_in *mdsin,char *path, + u_char *fhp, int *fhsizep, + struct nfs_args *args, + struct proc *procp)); +static int setfs __P((struct sockaddr_in *addr, char *path, char *p)); +static int getdec __P((char **ptr)); +static char *substr __P((char *a,char *b)); +static void mountopts __P((struct nfs_args *args, char *p)); +static int xdr_opaque_decode __P((struct mbuf **ptr,u_char *buf, + int len)); +static int xdr_int_decode __P((struct mbuf **ptr,int *iptr)); +static void printip __P((char *prefix,struct in_addr addr)); + +#ifdef BOOTP_DEBUG +void bootpboot_p_sa(struct sockaddr *sa,struct sockaddr *ma); +void bootpboot_p_ma(struct sockaddr *ma); +void bootpboot_p_rtentry(struct rtentry *rt); +void bootpboot_p_tree(struct radix_node *rn); +void bootpboot_p_rtlist(void); +void bootpboot_p_iflist(void); +#endif + +int bootpc_call(struct bootp_packet *call, + struct bootp_packet *reply, + struct proc *procp); + +int bootpc_fakeup_interface(struct ifreq *ireq,struct socket *so, + struct proc *procp); + +int +bootpc_adjust_interface(struct ifreq *ireq,struct socket *so, + struct sockaddr_in *myaddr, + struct sockaddr_in *netmask, + struct sockaddr_in *gw, + struct proc *procp); + +void bootpc_init(void); + +#ifdef BOOTP_DEBUG +void bootpboot_p_sa(sa,ma) + struct sockaddr *sa; + struct sockaddr *ma; +{ + if (!sa) { + printf("(sockaddr *) <null>"); + return; + } + switch (sa->sa_family) { + case AF_INET: + { + struct sockaddr_in *sin = (struct sockaddr_in *) sa; + printf("inet %x",ntohl(sin->sin_addr.s_addr)); + if (ma) { + struct sockaddr_in *sin = (struct sockaddr_in *) ma; + printf(" mask %x",ntohl(sin->sin_addr.s_addr)); + } + } + break; + case AF_LINK: + { + struct sockaddr_dl *sli = (struct sockaddr_dl *) sa; + int i; + printf("link %.*s ",sli->sdl_nlen,sli->sdl_data); + for (i=0;i<sli->sdl_alen;i++) { + if (i>0) + printf(":"); + printf("%x",(unsigned char) sli->sdl_data[i+sli->sdl_nlen]); + } + } + break; + default: + printf("af%d",sa->sa_family); + } +} + +void bootpboot_p_ma(ma) + struct sockaddr *ma; +{ + if (!ma) { + printf("<null>"); + return; + } + printf("%x",*(int*)ma); +} + +void bootpboot_p_rtentry(rt) + struct rtentry *rt; +{ + bootpboot_p_sa(rt_key(rt),rt_mask(rt)); + printf(" "); + bootpboot_p_ma(rt->rt_genmask); + printf(" "); + bootpboot_p_sa(rt->rt_gateway,NULL); + printf(" "); + printf("flags %x",(unsigned short) rt->rt_flags); + printf(" %d",rt->rt_rmx.rmx_expire); + printf(" %s%d\n",rt->rt_ifp->if_name,rt->rt_ifp->if_unit); +} +void bootpboot_p_tree(rn) + struct radix_node *rn; +{ + while (rn) { + if (rn->rn_b < 0) { + if (rn->rn_flags & RNF_ROOT) { + } else { + bootpboot_p_rtentry((struct rtentry *) rn); + } + rn = rn->rn_dupedkey; + } else { + bootpboot_p_tree(rn->rn_l); + bootpboot_p_tree(rn->rn_r); + return; + } + + } +} + +void bootpboot_p_rtlist(void) +{ + printf("Routing table:\n"); + bootpboot_p_tree(rt_tables[AF_INET]->rnh_treetop); +} + +void bootpboot_p_iflist(void) +{ + struct ifnet *ifp; + struct ifaddr *ifa; + printf("Interface list:\n"); + for (ifp = TAILQ_FIRST(&ifnet); ifp != 0; ifp = TAILQ_NEXT(ifp,if_link)) + { + for (ifa = TAILQ_FIRST(&ifp->if_addrhead) ;ifa; + ifa=TAILQ_NEXT(ifa,ifa_link)) + if (ifa->ifa_addr->sa_family == AF_INET ) { + printf("%s%d flags %x, addr %x, bcast %x, net %x\n", + ifp->if_name,ifp->if_unit, + (unsigned short) ifp->if_flags, + ntohl(((struct sockaddr_in *) ifa->ifa_addr)->sin_addr.s_addr), + ntohl(((struct sockaddr_in *) ifa->ifa_dstaddr)->sin_addr.s_addr), + ntohl(((struct sockaddr_in *) ifa->ifa_netmask)->sin_addr.s_addr) + ); + } + } +} +#endif + +int +bootpc_call(call,reply,procp) + struct bootp_packet *call; + struct bootp_packet *reply; /* output */ + struct proc *procp; +{ + struct socket *so; + struct sockaddr_in *sin,sa; + struct mbuf *m, *nam; + struct uio auio; + struct iovec aio; + int error, rcvflg, timo, secs, len; + u_int tport; + + /* Free at end if not null. */ + nam = NULL; + + /* + * Create socket and set its recieve timeout. + */ + if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0,procp))) + goto out; + + m = m_get(M_WAIT, MT_SOOPTS); + if (m == NULL) { + error = ENOBUFS; + goto out; + } else { + struct timeval *tv; + tv = mtod(m, struct timeval *); + m->m_len = sizeof(*tv); + tv->tv_sec = 1; + tv->tv_usec = 0; + if ((error = sosetopt(so, SOL_SOCKET, SO_RCVTIMEO, m))) + goto out; + } + + /* + * Enable broadcast. + */ + { + int *on; + m = m_get(M_WAIT, MT_SOOPTS); + if (m == NULL) { + error = ENOBUFS; + goto out; + } + on = mtod(m, int *); + m->m_len = sizeof(*on); + *on = 1; + if ((error = sosetopt(so, SOL_SOCKET, SO_BROADCAST, m))) + goto out; + } + + /* + * Bind the local endpoint to a bootp client port. + */ + m = m_getclr(M_WAIT, MT_SONAME); + sin = mtod(m, struct sockaddr_in *); + sin->sin_len = m->m_len = sizeof(*sin); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = INADDR_ANY; + sin->sin_port = htons(IPPORT_BOOTPC); + error = sobind(so, m); + m_freem(m); + if (error) { + printf("bind failed\n"); + goto out; + } + + /* + * Setup socket address for the server. + */ + nam = m_get(M_WAIT, MT_SONAME); + if (nam == NULL) { + error = ENOBUFS; + goto out; + } + sin = mtod(nam, struct sockaddr_in *); + sin-> sin_len = sizeof(*sin); + sin-> sin_family = AF_INET; + sin->sin_addr.s_addr = INADDR_BROADCAST; + sin->sin_port = htons(IPPORT_BOOTPS); + + nam->m_len = sizeof(*sin); + + /* + * Send it, repeatedly, until a reply is received, + * but delay each re-send by an increasing amount. + * If the delay hits the maximum, start complaining. + */ + timo = 0; + for (;;) { + /* Send BOOTP request (or re-send). */ + + aio.iov_base = (caddr_t) call; + aio.iov_len = sizeof(*call); + + auio.uio_iov = &aio; + auio.uio_iovcnt = 1; + auio.uio_segflg = UIO_SYSSPACE; + auio.uio_rw = UIO_WRITE; + auio.uio_offset = 0; + auio.uio_resid = sizeof(*call); + auio.uio_procp = procp; + + error = sosend(so, nam, &auio, NULL, NULL, 0); + if (error) { + printf("bootpc_call: sosend: %d\n", error); + goto out; + } + + /* Determine new timeout. */ + if (timo < MAX_RESEND_DELAY) + timo++; + else + printf("BOOTP timeout for server 0x%x\n", + (int)ntohl(sin->sin_addr.s_addr)); + + /* + * Wait for up to timo seconds for a reply. + * The socket receive timeout was set to 1 second. + */ + secs = timo; + while (secs > 0) { + aio.iov_base = (caddr_t) reply; + aio.iov_len = sizeof(*reply); + + auio.uio_iov = &aio; + auio.uio_iovcnt = 1; + auio.uio_segflg = UIO_SYSSPACE; + auio.uio_rw = UIO_READ; + auio.uio_offset = 0; + auio.uio_resid = sizeof(*reply); + auio.uio_procp = procp; + + rcvflg = 0; + error = soreceive(so, NULL, &auio, NULL, NULL, &rcvflg); + if (error == EWOULDBLOCK) { + secs--; + call->secs=htons(ntohs(call->secs)+1); + continue; + } + if (error) + goto out; + len = sizeof(*reply) - auio.uio_resid; + + /* Do we have the required number of bytes ? */ + if (len < BOOTP_MIN_LEN) + continue; + + /* Is it the right reply? */ + if (reply->op != 2) + continue; + + if (reply->xid != call->xid) + continue; + + if (reply->hlen != call->hlen) + continue; + + if (bcmp(reply->chaddr,call->chaddr,call->hlen)) + continue; + + goto gotreply; /* break two levels */ + + } /* while secs */ + } /* forever send/receive */ + + error = ETIMEDOUT; + goto out; + + gotreply: + out: + if (nam) m_freem(nam); + soclose(so); + return error; +} + +int +bootpc_fakeup_interface(struct ifreq *ireq,struct socket *so, + struct proc *procp) +{ + struct sockaddr_in *sin; + int error; + struct sockaddr_in dst; + struct sockaddr_in gw; + struct sockaddr_in mask; + + /* + * Bring up the interface. + * + * Get the old interface flags and or IFF_UP into them; if + * IFF_UP set blindly, interface selection can be clobbered. + */ + error = ifioctl(so, SIOCGIFFLAGS, (caddr_t)ireq, procp); + if (error) + panic("bootpc_fakeup_interface: GIFFLAGS, error=%d", error); + ireq->ifr_flags |= IFF_UP; + error = ifioctl(so, SIOCSIFFLAGS, (caddr_t)ireq, procp); + if (error) + panic("bootpc_fakeup_interface: SIFFLAGS, error=%d", error); + + /* + * Do enough of ifconfig(8) so that the chosen interface + * can talk to the servers. (just set the address) + */ + + /* addr is 0.0.0.0 */ + + sin = (struct sockaddr_in *)&ireq->ifr_addr; + bzero((caddr_t)sin, sizeof(*sin)); + sin->sin_len = sizeof(*sin); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = INADDR_ANY; + error = ifioctl(so, SIOCSIFADDR, (caddr_t)ireq, procp); + if (error) + panic("bootpc_fakeup_interface: set if addr, error=%d", error); + + /* netmask is 0.0.0.0 */ + + sin = (struct sockaddr_in *)&ireq->ifr_addr; + bzero((caddr_t)sin, sizeof(*sin)); + sin->sin_len = sizeof(*sin); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = INADDR_ANY; + error = ifioctl(so, SIOCSIFNETMASK, (caddr_t)ireq, procp); + if (error) + panic("bootpc_fakeup_interface: set if net addr, error=%d", error); + + /* Broadcast is 255.255.255.255 */ + + sin = (struct sockaddr_in *)&ireq->ifr_addr; + bzero((caddr_t)sin, sizeof(*sin)); + sin->sin_len = sizeof(*sin); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = INADDR_BROADCAST; + error = ifioctl(so, SIOCSIFBRDADDR, (caddr_t)ireq, procp); + if (error) + panic("bootpc_fakeup_interface: set if broadcast addr, error=%d", error); + + /* Add default route to 0.0.0.0 so we can send data */ + + bzero((caddr_t) &dst, sizeof(dst)); + dst.sin_len=sizeof(dst); + dst.sin_family=AF_INET; + dst.sin_addr.s_addr = htonl(0); + + bzero((caddr_t) &gw, sizeof(gw)); + gw.sin_len=sizeof(gw); + gw.sin_family=AF_INET; + gw.sin_addr.s_addr = htonl(0x0); + + bzero((caddr_t) &mask, sizeof(mask)); + mask.sin_len=sizeof(mask); + mask.sin_family=AF_INET; + mask.sin_addr.s_addr = htonl(0); + + error = rtrequest(RTM_ADD, + (struct sockaddr *) &dst, + (struct sockaddr *) &gw, + (struct sockaddr *) &mask, + RTF_UP | RTF_STATIC + , NULL); + if (error) + printf("bootpc_fakeup_interface: add default route, error=%d\n", error); + return error; +} + +int +bootpc_adjust_interface(struct ifreq *ireq,struct socket *so, + struct sockaddr_in *myaddr, + struct sockaddr_in *netmask, + struct sockaddr_in *gw, + struct proc *procp) +{ + int error; + struct sockaddr_in oldgw; + struct sockaddr_in olddst; + struct sockaddr_in oldmask; + struct sockaddr_in *sin; + + /* Remove old default route to 0.0.0.0 */ + + bzero((caddr_t) &olddst, sizeof(olddst)); + olddst.sin_len=sizeof(olddst); + olddst.sin_family=AF_INET; + olddst.sin_addr.s_addr = INADDR_ANY; + + bzero((caddr_t) &oldgw, sizeof(oldgw)); + oldgw.sin_len=sizeof(oldgw); + oldgw.sin_family=AF_INET; + oldgw.sin_addr.s_addr = INADDR_ANY; + + bzero((caddr_t) &oldmask, sizeof(oldmask)); + oldmask.sin_len=sizeof(oldmask); + oldmask.sin_family=AF_INET; + oldmask.sin_addr.s_addr = INADDR_ANY; + + error = rtrequest(RTM_DELETE, + (struct sockaddr *) &olddst, + (struct sockaddr *) &oldgw, + (struct sockaddr *) &oldmask, + (RTF_UP | RTF_STATIC), NULL); + if (error) { + printf("nfs_boot: del default route, error=%d\n", error); + return error; + } + + /* + * Do enough of ifconfig(8) so that the chosen interface + * can talk to the servers. (just set the address) + */ + bcopy(netmask,&ireq->ifr_addr,sizeof(*netmask)); + error = ifioctl(so, SIOCSIFNETMASK, (caddr_t)ireq, procp); + if (error) + panic("nfs_boot: set if netmask, error=%d", error); + + /* Broadcast is with host part of IP address all 1's */ + + sin = (struct sockaddr_in *)&ireq->ifr_addr; + bzero((caddr_t)sin, sizeof(*sin)); + sin->sin_len = sizeof(*sin); + sin->sin_family = AF_INET; + sin->sin_addr.s_addr = myaddr->sin_addr.s_addr | ~ netmask->sin_addr.s_addr; + error = ifioctl(so, SIOCSIFBRDADDR, (caddr_t)ireq, procp); + if (error) + panic("bootpc_call: set if broadcast addr, error=%d", error); + + bcopy(myaddr,&ireq->ifr_addr,sizeof(*myaddr)); + error = ifioctl(so, SIOCSIFADDR, (caddr_t)ireq, procp); + if (error) + panic("nfs_boot: set if addr, error=%d", error); + + /* Add new default route */ + + error = rtrequest(RTM_ADD, + (struct sockaddr *) &olddst, + (struct sockaddr *) gw, + (struct sockaddr *) &oldmask, + (RTF_UP | RTF_GATEWAY | RTF_STATIC), NULL); + if (error) { + printf("nfs_boot: add net route, error=%d\n", error); + return error; + } + + return 0; +} + +static int setfs(addr, path, p) + struct sockaddr_in *addr; + char *path; + char *p; +{ + unsigned ip = 0; + int val; + + if (((val = getdec(&p)) < 0) || (val > 255)) return(0); + ip = val << 24; + if (*p != '.') return(0); + p++; + if (((val = getdec(&p)) < 0) || (val > 255)) return(0); + ip |= (val << 16); + if (*p != '.') return(0); + p++; + if (((val = getdec(&p)) < 0) || (val > 255)) return(0); + ip |= (val << 8); + if (*p != '.') return(0); + p++; + if (((val = getdec(&p)) < 0) || (val > 255)) return(0); + ip |= val; + if (*p != ':') return(0); + p++; + + addr->sin_addr.s_addr = htonl(ip); + addr->sin_len = sizeof(struct sockaddr_in); + addr->sin_family = AF_INET; + + strncpy(path,p,MNAMELEN-1); + return(1); +} + +static int getdec(ptr) + char **ptr; +{ + char *p = *ptr; + int ret=0; + if ((*p < '0') || (*p > '9')) return(-1); + while ((*p >= '0') && (*p <= '9')) { + ret = ret*10 + (*p - '0'); + p++; + } + *ptr = p; + return(ret); +} + +static char *substr(a,b) + char *a,*b; +{ + char *loc1; + char *loc2; + + while (*a != '\0') { + loc1 = a; + loc2 = b; + while (*loc1 == *loc2++) { + if (*loc1 == '\0') return (0); + loc1++; + if (*loc2 == '\0') return (loc1); + } + a++; + } + return (0); +} + +static void printip(char *prefix,struct in_addr addr) +{ + unsigned int ip; + + ip = ntohl(addr.s_addr); + + printf("%s is %d.%d.%d.%d\n",prefix, + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); +} + +void +bootpc_init(void) +{ + struct bootp_packet call; + struct bootp_packet reply; + static u_int32_t xid = ~0xFF; + + struct ifreq ireq; + struct ifnet *ifp; + struct socket *so; + int error; + int code,ncode,len; + int i,j; + char *p; + unsigned int ip; + + struct sockaddr_in myaddr; + struct sockaddr_in netmask; + struct sockaddr_in gw; + int gotgw=0; + int gotnetmask=0; + int gotrootpath=0; + int gotswappath=0; + char lookup_path[24]; + +#define EALEN 6 + unsigned char ea[EALEN]; + struct ifaddr *ifa; + struct sockaddr_dl *sdl = NULL; + char *delim; + struct proc *procp = NULL; + + /* + * If already filled in, don't touch it here + */ + if (nfs_diskless_valid) + return; + + /* + * Bump time if 0. + if (!time.tv_sec) + time.tv_sec++; + */ + + /* + * Find a network interface. + */ + for (ifp = ifnet; ifp != 0; ifp = ifp->if_next) + if ((ifp->if_flags & + (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0) + break; + if (ifp == NULL) + panic("bootpc_init: no suitable interface"); + bzero(&ireq,sizeof(ireq)); + sprintf(ireq.ifr_name, "%s%d", ifp->if_name,ifp->if_unit); + printf("bootpc_init: using network interface '%s'\n", + ireq.ifr_name); + + if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0,procp)) != 0) + panic("nfs_boot: socreate, error=%d", error); + + bootpc_fakeup_interface(&ireq,so,procp); + + printf("Bootpc testing starting\n"); + + /* Get HW address */ + + for (ifa = ifp->if_addrlist;ifa; ifa = ifa->ifa_next) + if (ifa->ifa_addr->sa_family == AF_LINK && + (sdl = ((struct sockaddr_dl *) ifa->ifa_addr)) && + sdl->sdl_type == IFT_ETHER) + break; + + if (!sdl) + panic("bootpc: Unable to find HW address"); + if (sdl->sdl_alen != EALEN ) + panic("bootpc: HW address len is %d, expected value is %d", + sdl->sdl_alen,EALEN); + + printf("bootpc hw address is "); + delim=""; + for (j=0;j<sdl->sdl_alen;j++) { + printf("%s%x",delim,((unsigned char *)LLADDR(sdl))[j]); + delim=":"; + } + printf("\n"); + +#if 0 + bootpboot_p_iflist(); + bootpboot_p_rtlist(); +#endif + + bzero((caddr_t) &call, sizeof(call)); + + /* bootpc part */ + call.op = 1; /* BOOTREQUEST */ + call.htype= 1; /* 10mb ethernet */ + call.hlen=sdl->sdl_alen; /* Hardware address length */ + call.hops=0; + xid++; + call.xid = txdr_unsigned(xid); + bcopy(LLADDR(sdl),&call.chaddr,sdl->sdl_alen); + + call.vend[0]=99; + call.vend[1]=130; + call.vend[2]=83; + call.vend[3]=99; + call.vend[4]=255; + + call.secs = 0; + call.flags = htons(0x8000); /* We need an broadcast answer */ + + error = bootpc_call(&call,&reply,procp); + + if (error) + panic("BOOTP call failed -- error %d", error); + + bzero(&myaddr,sizeof(myaddr)); + bzero(&netmask,sizeof(netmask)); + bzero(&gw,sizeof(gw)); + + myaddr.sin_len = sizeof(myaddr); + myaddr.sin_family = AF_INET; + + netmask.sin_len = sizeof(netmask); + netmask.sin_family = AF_INET; + + gw.sin_len = sizeof(gw); + gw.sin_family= AF_INET; + + rtems_bsdnet_bootp_server_address = reply.siaddr; + rtems_bsdnet_log_host_address = reply.siaddr; + + myaddr.sin_addr = reply.yiaddr; + + ip = ntohl(myaddr.sin_addr.s_addr); + sprintf(lookup_path,"swap.%d.%d.%d.%d", + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); + + printip("My ip address",myaddr.sin_addr); + + printip("Server ip address",reply.siaddr); + + gw.sin_addr = reply.giaddr; + printip("Gateway ip address",reply.giaddr); + + if (reply.sname[0]) + printf("Server name is %s\n",reply.sname); + if (reply.file[0]) + printf("boot file is %s\n",reply.file); + rtems_bsdnet_bootp_boot_file_name = strdup (reply.file); + if (reply.vend[0]==99 && reply.vend[1]==130 && + reply.vend[2]==83 && reply.vend[3]==99) { + j=4; + ncode = reply.vend[j]; + while (j<sizeof(reply.vend)) { + code = reply.vend[j] = ncode; + if (code==255) + break; + if (code==0) { + j++; + continue; + } + len = reply.vend[j+1]; + j+=2; + if (len+j>=sizeof(reply.vend)) { + printf("Truncated field"); + break; + } + ncode = reply.vend[j+len]; + reply.vend[j+len]='\0'; + p = &reply.vend[j]; + switch (code) { + case 1: + if (len!=4) + panic("bootpc: subnet mask len is %d",len); + bcopy(&reply.vend[j],&netmask.sin_addr,4); + gotnetmask=1; + printip("Subnet mask",netmask.sin_addr); + break; + case 6: + /* Domain Name servers */ + if (len % 4) + panic("bootpc: DNS Len is %d",len); + { + int dlen = 0; + while ((dlen < len) && + (rtems_bsdnet_nameserver_count < sizeof rtems_bsdnet_config.name_server / + sizeof rtems_bsdnet_config.name_server[0])) { + bcopy(&reply.vend[j+dlen], + &rtems_bsdnet_nameserver[rtems_bsdnet_nameserver_count], + 4); + printip("Domain Name Server", + rtems_bsdnet_nameserver[rtems_bsdnet_nameserver_count]); + rtems_bsdnet_nameserver_count++; + dlen += 4; + } + } + break; + case 16: /* Swap server IP address. unused */ + case 2: + /* Time offset */ + break; + case 3: + /* Routers */ + if (len % 4) + panic("bootpc: Router Len is %d",len); + if (len > 0) { + bcopy(&reply.vend[j],&gw.sin_addr,4); + printip("Router",gw.sin_addr); + gotgw=1; + } + break; + case 7: + /* Log servers */ + if (len % 4) + panic("bootpc: Log server len is %d",len); + if (len > 0) { + bcopy(&reply.vend[j],&rtems_bsdnet_log_host_address,4); + printip("Log server",rtems_bsdnet_log_host_address); + } + break; + case 12: + if (len>=MAXHOSTNAMELEN) + panic("bootpc: hostname >=%d bytes",MAXHOSTNAMELEN); + if (sethostname (&reply.vend[j], len) < 0) + panic("Can't set host name"); + printf("Hostname is %.*s\n",len,&reply.vend[j]); + break; + case 15: + /* Domain name */ + rtems_bsdnet_domain_name = strdup (&reply.vend[j]); + if (rtems_bsdnet_domain_name) + printf("Domain name is %s\n", rtems_bsdnet_domain_name); + break; + default: + printf("Ignoring field type %d\n",code); + } + j+=len; + } + } + + if (!gotnetmask) { + if (IN_CLASSA(ntohl(myaddr.sin_addr.s_addr))) + netmask.sin_addr.s_addr = htonl(IN_CLASSA_NET); + else if (IN_CLASSB(ntohl(myaddr.sin_addr.s_addr))) + netmask.sin_addr.s_addr = htonl(IN_CLASSB_NET); + else + netmask.sin_addr.s_addr = htonl(IN_CLASSC_NET); + } + if (!gotgw) { + /* Use proxyarp */ + gw.sin_addr.s_addr = myaddr.sin_addr.s_addr; + } + +#if 0 + bootpboot_p_iflist(); + bootpboot_p_rtlist(); +#endif + error = bootpc_adjust_interface(&ireq,so, + &myaddr,&netmask,&gw,procp); + + soclose(so); + +#if 0 + bootpboot_p_iflist(); + bootpboot_p_rtlist(); +#endif + + +#if 0 + myaddr.sin_addr.s_addr | ~ netmask.sin_addr.s_addr; +#endif + +#if 0 + bootpboot_p_iflist(); + bootpboot_p_rtlist(); +#endif + return; +} |