diff options
author | tegge <tegge@FreeBSD.org> | 1997-05-14 01:36:51 +0000 |
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committer | tegge <tegge@FreeBSD.org> | 1997-05-14 01:36:51 +0000 |
commit | 2939e33031c75fad103c3c5b64529d22f17546bd (patch) | |
tree | ce3fc092dd81e7b591ce7eed84b131e3855e6c1b /sys/nfs | |
parent | 82b9d3453b70c7b4253760d0d99bbf05ec2e590f (diff) | |
download | FreeBSD-src-2939e33031c75fad103c3c5b64529d22f17546bd.zip FreeBSD-src-2939e33031c75fad103c3c5b64529d22f17546bd.tar.gz |
Use same syntax as netboot for root and swap mounts.
Handle mount options.
Ignore T16 (swap server address) and T6 (DNS server).
Diffstat (limited to 'sys/nfs')
-rw-r--r-- | sys/nfs/bootp_subr.c | 318 |
1 files changed, 155 insertions, 163 deletions
diff --git a/sys/nfs/bootp_subr.c b/sys/nfs/bootp_subr.c index 837ca64..da94bd9 100644 --- a/sys/nfs/bootp_subr.c +++ b/sys/nfs/bootp_subr.c @@ -1,4 +1,4 @@ -/* $Id:$ */ +/* $Id: bootp_subr.c,v 1.2 1997/05/11 18:05:39 tegge Exp $ */ /* * Copyright (c) 1995 Gordon Ross, Adam Glass @@ -112,6 +112,10 @@ 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)); #ifdef BOOTP_DEBUG void bootpboot_p_sa(struct sockaddr *sa,struct sockaddr *ma); @@ -622,59 +626,92 @@ bootpc_adjust_interface(struct ifreq *ireq,struct socket *so, return 0; } -void bootp_expand_path(char *str,size_t len,char *hostname, - struct in_addr addr); -void bootp_expand_path(char *str,size_t len,char *hostname, - struct in_addr addr) +static int setfs(addr, path, p) + struct sockaddr_in *addr; + char *path; + char *p; { - char tmpbuf[128]; - char tmpaddr[20]; - - char *p,*q,*savep; - q = tmpbuf; - - savep = NULL; - sprintf(tmpaddr,"%d.%d.%d.%d", - ((unsigned char *) &addr)[0], - ((unsigned char *) &addr)[1], - ((unsigned char *) &addr)[2], - ((unsigned char *) &addr)[3]); - - for (p=str;*p;) { - switch(*p) { - case '%': - if (!savep) { - switch(*++p) { - case 'H': - savep = ++p; - p= hostname; - break; - case 'I': - savep = ++p; - p = tmpaddr; - break; - default: - goto arnej; + 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++; } - break; - } - default: - arnej: - if (q+1>=tmpbuf+sizeof(tmpbuf)) - panic("bootp_expand_path: Cannot expand %s\n",str); - else - *q++ = *p++; - if (!*p && savep) { - p = savep; - savep = NULL; - } - } - } - *q++ = 0; - if (q-tmpbuf>len) { - panic("bootp_expand_path: Too long expansion: %s\n",tmpbuf); - } - strcpy(str,tmpbuf); + *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 mountopts(args,p) + struct nfs_args *args; + char *p; +{ + char *tmp; + + args->flags = NFSMNT_RSIZE | NFSMNT_WSIZE | NFSMNT_RESVPORT; + args->sotype = SOCK_DGRAM; + if ((tmp = (char *)substr(p,"rsize="))) + args->rsize=getdec(&tmp); + if ((tmp = (char *)substr(p,"wsize="))) + args->wsize=getdec(&tmp); + if ((tmp = (char *)substr(p,"intr"))) + args->flags |= NFSMNT_INT; + if ((tmp = (char *)substr(p,"soft"))) + args->flags |= NFSMNT_SOFT; + if ((tmp = (char *)substr(p,"noconn"))) + args->flags |= NFSMNT_NOCONN; + if ((tmp = (char *)substr(p, "tcp"))) + args->sotype = SOCK_STREAM; } void @@ -688,20 +725,19 @@ bootpc_init(void) struct ifnet *ifp; struct socket *so; int error; - int code,len; + int code,ncode,len; int i,j; - char rootpath[65]; - char swappath[65]; + char *p; + unsigned int ip; struct sockaddr_in myaddr; struct sockaddr_in netmask; struct sockaddr_in gw; - struct sockaddr_in server; int gotgw=0; int gotnetmask=0; - int gotserver=0; int gotrootpath=0; int gotswappath=0; + char lookup_path[24]; #define EALEN 6 unsigned char ea[EALEN]; @@ -807,7 +843,6 @@ bootpc_init(void) bzero(&myaddr,sizeof(myaddr)); bzero(&netmask,sizeof(netmask)); bzero(&gw,sizeof(gw)); - bzero(&server,sizeof(server)); myaddr.sin_len = sizeof(myaddr); myaddr.sin_family = AF_INET; @@ -818,15 +853,37 @@ bootpc_init(void) gw.sin_len = sizeof(gw); gw.sin_family= AF_INET; - server.sin_len = sizeof(gw); - server.sin_family= AF_INET; + nd->root_args.version = NFS_ARGSVERSION; + nd->root_args.rsize = 8192; + nd->root_args.wsize = 8192; + nd->root_args.sotype = SOCK_DGRAM; + nd->root_args.flags = (NFSMNT_WSIZE | NFSMNT_RSIZE | NFSMNT_RESVPORT); - printf("My new ip address is %x\n",htonl(reply.yiaddr.s_addr)); + nd->swap_saddr.sin_len = sizeof(gw); + nd->swap_saddr.sin_family = AF_INET; + nd->swap_args.version = NFS_ARGSVERSION; + nd->swap_args.rsize = 8192; + nd->swap_args.wsize = 8192; + nd->swap_args.sotype = SOCK_DGRAM; + nd->swap_args.flags = (NFSMNT_WSIZE | NFSMNT_RSIZE | NFSMNT_RESVPORT); + myaddr.sin_addr = reply.yiaddr; - printf("Server ip address is %x\n",htonl(reply.siaddr.s_addr)); - printf("Gateway ip address is %x\n",htonl(reply.giaddr.s_addr)); + ip = ntohl(myaddr.sin_addr.s_addr); + printf("My ip address is %d.%d.%d.%d\n", + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); + + sprintf(lookup_path,"swap.%d.%d.%d.%d", + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); + + ip = ntohl(reply.siaddr.s_addr); + printf("Server ip address is %d.%d.%d.%d\n", + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); + + ip = ntohl(reply.giaddr.s_addr); + printf("Gateway ip address is %d.%d.%d.%d\n", + ip >> 24, (ip >> 16) & 255 ,(ip >> 8) & 255 ,ip & 255 ); gw.sin_addr = reply.giaddr; @@ -837,11 +894,12 @@ bootpc_init(void) 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]; - if (reply.vend[j]==255) + code = reply.vend[j] = ncode; + if (code==255) break; - if (reply.vend[j]==0) { + if (code==0) { j++; continue; } @@ -851,6 +909,9 @@ bootpc_init(void) 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) @@ -882,36 +943,16 @@ bootpc_init(void) reply.vend[j+i+3]); } break; - case 6: - /* Domain Name servers */ - if (len % 4) - panic("bootpc: DNS Len is %d",len); - for (i=0;i<len;i+=4) { - printf("DNS server is %d.%d.%d.%d\n", - reply.vend[j+i], - reply.vend[j+i+1], - reply.vend[j+i+2], - reply.vend[j+i+3]); - } + case 6:/* Domain Name servers. Unused */ break; - case 16: - if (len!=4) - panic("bootpc: swap server len is %d",len); - bcopy(&reply.vend[j],&server.sin_addr,4); - gotserver=1; - printf("Swap server (also used as root path server) is %d.%d.%d.%d\n", - reply.vend[j], - reply.vend[j+1], - reply.vend[j+2], - reply.vend[j+3]); + case 16: /* Swap server IP address. unused */ break; case 17: - if (len>=sizeof(rootpath)) - panic("bootpc: rootpath >=%d bytes",sizeof(rootpath)); - strncpy(rootpath,&reply.vend[j],len); - rootpath[len]=0; - gotrootpath=1; - printf("Rootpath is %s\n",rootpath); + if (setfs(&nd->root_saddr, nd->root_hostnam, p)) { + printf("rootfs is %s\n",p); + gotrootpath=1; + } else + panic("Failed to set rootfs to %s",p); break; case 12: if (len>=MAXHOSTNAMELEN) @@ -923,12 +964,11 @@ bootpc_init(void) printf("Hostname is %s\n",hostname); break; case 128: - if (len>=sizeof(swappath)) - panic("bootpc: swappath >=%d bytes",sizeof(swappath)); - strncpy(swappath,&reply.vend[j],len); - swappath[len]=0; - gotswappath=1; - printf("Swappath is %s\n",swappath); + if (setfs(&nd->swap_saddr, nd->swap_hostnam, p)) { + gotswappath=1; + printf("swapfs is %s\n",p); + } else + panic("Failed to set swapfs to %s",p); break; case 129: { @@ -940,6 +980,12 @@ bootpc_init(void) printf("bootpc: Swap size is %d KB\n",nd->swap_nblks); } break; + case 130: /* root mount options */ + mountopts(&nd->root_args,p); + break; + case 131: /* swap mount options */ + mountopts(&nd->swap_args,p); + break; default: printf("Ignoring field type %d\n",code); } @@ -947,29 +993,13 @@ bootpc_init(void) } } - if (gotrootpath) { - bootp_expand_path(rootpath,sizeof(rootpath), - hostname, - myaddr.sin_addr); - printf("Rootpath is expanded to %s\n",rootpath); - if (gotswappath) { - bootp_expand_path(swappath,sizeof(swappath), - hostname, - myaddr.sin_addr); - printf("Swappath is expanded to %s\n",swappath); - } - else - nd->swap_nblks = 0; - } else { + if (!gotswappath) + nd->swap_nblks = 0; #ifdef BOOTP_NFSROOT + if (!gotrootpath) panic("bootpc: No root path offered"); #endif - } - if (!gotserver) { - server.sin_addr = reply.siaddr ; - } - if (!gotnetmask) { if (IN_CLASSA(myaddr.sin_addr.s_addr)) netmask.sin_addr.s_addr = IN_CLASSA_NET; @@ -997,62 +1027,24 @@ bootpc_init(void) bootpboot_p_rtlist(); #endif - nd->root_args.version = NFS_ARGSVERSION; - nd->root_args.rsize = 8192; - nd->root_args.wsize = 8192; - nd->root_args.sotype = SOCK_DGRAM; - nd->root_args.flags = (NFSMNT_WSIZE | NFSMNT_RSIZE | - NFSMNT_RESVPORT | NFSMNT_NOCONN); - - nd->swap_args.version = NFS_ARGSVERSION; - nd->swap_args.rsize = 8192; - nd->swap_args.wsize = 8192; - nd->swap_args.sotype = SOCK_DGRAM; - nd->swap_args.flags = (NFSMNT_WSIZE | NFSMNT_RSIZE | - NFSMNT_RESVPORT | NFSMNT_NOCONN); - if (gotrootpath) { - if (server.sin_addr.s_addr != reply.siaddr.s_addr ) { - sprintf(nd->root_hostnam,"%d.%d.%d.%d", - ((unsigned char *) &server.sin_addr)[0], - ((unsigned char *) &server.sin_addr)[1], - ((unsigned char *) &server.sin_addr)[2], - ((unsigned char *) &server.sin_addr)[3]); - } else - strcpy(nd->root_hostnam,reply.sname); - bcopy(&server, &nd->root_saddr,sizeof(server)); - - error = md_mount(&nd->root_saddr, rootpath, nd->root_fh, &nd->root_fhsize, + + error = md_mount(&nd->root_saddr, nd->root_hostnam, + nd->root_fh, &nd->root_fhsize, &nd->root_args,procp); if (error) panic("nfs_boot: mountd root, error=%d", error); - + if (gotswappath) { - char *p = swappath; - - while (*p) - p++; - while (p>=swappath && *p != '/') - p--; - - strcpy(nd->swap_hostnam, nd->root_hostnam); - - bcopy(&server, &nd->swap_saddr,sizeof(server)); - - if (p>swappath) - *p = '\0'; error = md_mount(&nd->swap_saddr, - (p>swappath) ? swappath:"/", + nd->swap_hostnam, nd->swap_fh, &nd->swap_fhsize,&nd->swap_args,procp); if (error) panic("nfs_boot: mountd swap, error=%d", error); - if (p>swappath) - *p = '/'; - if (p>=swappath) - error = md_lookup_swap(&nd->swap_saddr,p+1,nd->swap_fh, - &nd->swap_fhsize, &nd->swap_args,procp); + error = md_lookup_swap(&nd->swap_saddr,lookup_path,nd->swap_fh, + &nd->swap_fhsize, &nd->swap_args,procp); if (error) panic("nfs_boot: lookup swap, error=%d", error); } |