#include #include #include #include "boot.h" static uchar fsip[IPaddrlen]; static uchar auip[IPaddrlen]; static char mpoint[32]; static int isvalidip(uchar*); static void netndb(char*, uchar*); static void netenv(char*, uchar*); void configip(void) { int argc, pid, wpid; char **argv, *p; Waitmsg w; char **arg; char buf[32]; fmtinstall('I', eipconv); fmtinstall('M', eipconv); fmtinstall('E', eipconv); arg = malloc((bargc+1) * sizeof(char*)); if(arg == nil) fatal("malloc"); memmove(arg, bargv, (bargc+1) * sizeof(char*)); argc = bargc; argv = arg; strcpy(mpoint, "/net"); ARGBEGIN { case 'x': p = ARGF(); if(p != nil) snprint(mpoint, sizeof(mpoint), "/net%s", p); break; case 'g': case 'b': case 'h': case 'm': case 'c': p = ARGF(); USED(p); break; } ARGEND; /* bind in an ip interface */ bind("#I", mpoint, MAFTER); bind("#l0", mpoint, MAFTER); bind("#l1", mpoint, MAFTER); /* let ipconfig configure the ip interface */ switch(pid = fork()){ case -1: fatal("configuring ip"); case 0: exec("/ipconfig", arg); fatal("execing /ipconfig"); default: break; } /* wait for ipconfig to finish */ for(;;){ wpid = wait(&w); if(wpid == pid){ if(w.msg[0] != 0) fatal(w.msg); break; } else if(wpid < 0) fatal("configuring ip"); } /* if we didn't get a file and auth server, query user */ netndb("fs", fsip); if(!isvalidip(fsip)) netenv("fs", fsip); while(!isvalidip(fsip)){ buf[0] = 0; outin("filesystem IP address", buf, sizeof(buf)); parseip(fsip, buf); } netndb("auth", auip); if(!isvalidip(auip)) netenv("auth", auip); while(!isvalidip(auip)){ buf[0] = 0; outin("authentication server IP address", buf, sizeof(buf)); parseip(auip, buf); } } void configil(Method*) { configip(); } int authil(void) { char buf[2*NAMELEN]; sprint(buf, "il!%I!566", auip); return dial(buf, 0, 0, 0); } int connectil(void) { char buf[2*NAMELEN]; sprint(buf, "il!%I!17008", fsip); return dial(buf, 0, 0, 0); } void configtcp(Method*) { configip(); } int authtcp(void) { char buf[2*NAMELEN]; sprint(buf, "tcp!%I!567", auip); return dial(buf, 0, 0, 0); } int connecttcp(void) { char buf[2*NAMELEN]; int fd; sprint(buf, "tcp!%I!564", fsip); fd = dial(buf, 0, 0, 0); if(fd < 0) return -1; return pushfcall(fd); } static int isvalidip(uchar *ip) { if(ipcmp(ip, IPnoaddr) == 0) return 0; if(ipcmp(ip, v4prefix) == 0) return 0; return 1; } static void netenv(char *attr, uchar *ip) { int fd, n; char buf[128]; ipmove(ip, IPnoaddr); snprint(buf, sizeof(buf), "#e/%s", attr); fd = open(buf, OREAD); if(fd < 0) return; n = read(fd, buf, sizeof(buf)-1); if(n <= 0) return; buf[n] = 0; parseip(ip, buf); } static void netndb(char *attr, uchar *ip) { int fd, n, c; char buf[1024]; char *p; ipmove(ip, IPnoaddr); snprint(buf, sizeof(buf), "%s/ndb", mpoint); fd = open(buf, OREAD); if(fd < 0) return; n = read(fd, buf, sizeof(buf)-1); close(fd); if(n <= 0) return; buf[n] = 0; n = strlen(attr); for(p = buf;;){ p = strstr(p, attr); if(p == nil) break; c = *(p-1); if(*(p + n) == '=' && (p == buf || c == '\n' || c == ' ' || c == '\t')){ p += n+1; parseip(ip, p); return; } p++; } return; }