int main(int argc, char *argv[]) { char *domdot, *verstr, *vertmp; int ppid = 0; int error; char *progname = NULL; /* "amd" */ char hostname[MAXHOSTNAMELEN + 1] = "localhost"; /* Hostname */ /* * Make sure some built-in assumptions are true before we start */ assert(sizeof(nfscookie) >= sizeof(u_int)); assert(sizeof(int) >= 4); /* * Set processing status. */ amd_state = Start; /* * Determine program name */ if (argv[0]) { progname = strrchr(argv[0], '/'); if (progname && progname[1]) progname++; else progname = argv[0]; } if (!progname) progname = "amd"; am_set_progname(progname); /* * Initialize process id. This is kept * cached since it is used for generating * and using file handles. */ am_set_mypid(); /* * Get local machine name */ if (gethostname(hostname, sizeof(hostname)) < 0) { plog(XLOG_FATAL, "gethostname: %m"); going_down(1); } hostname[sizeof(hostname) - 1] = '\0'; /* * Check it makes sense */ if (!*hostname) { plog(XLOG_FATAL, "host name is not set"); going_down(1); } /* * Initialize global options structure. */ init_global_options(); /* * Partially initialize hostd[]. This * is completed in get_args(). */ if ((domdot = strchr(hostname, '.'))) { /* * Hostname already contains domainname. * Split out hostname and domainname * components */ *domdot++ = '\0'; hostdomain = domdot; } xstrlcpy(hostd, hostname, sizeof(hostd)); am_set_hostname(hostname); /* * Setup signal handlers */ /* SIGINT: trap interrupts for shutdowns */ setup_sighandler(SIGINT, sigterm); /* SIGTERM: trap terminate so we can shutdown cleanly (some chance) */ setup_sighandler(SIGTERM, sigterm); /* SIGHUP: hangups tell us to reload the cache */ setup_sighandler(SIGHUP, sighup); /* * SIGCHLD: trap Death-of-a-child. These allow us to pick up the exit * status of backgrounded mounts. See "sched.c". */ setup_sighandler(SIGCHLD, sigchld); #ifdef HAVE_SIGACTION /* construct global "masked_sigs" used in nfs_start.c */ sigemptyset(&masked_sigs); sigaddset(&masked_sigs, SIGINT); sigaddset(&masked_sigs, SIGTERM); sigaddset(&masked_sigs, SIGHUP); sigaddset(&masked_sigs, SIGCHLD); #endif /* HAVE_SIGACTION */ /* * Fix-up any umask problems. Most systems default * to 002 which is not too convenient for our purposes */ orig_umask = umask(0); /* * Figure out primary network name */ getwire(&PrimNetName, &PrimNetNum); /* * Determine command-line arguments */ get_args(argc, argv); /* * Log version information. */ vertmp = get_version_string(); verstr = strtok(vertmp, "\n"); plog(XLOG_INFO, "AM-UTILS VERSION INFORMATION:"); while (verstr) { plog(XLOG_INFO, "%s", verstr); verstr = strtok(NULL, "\n"); } XFREE(vertmp); /* * Get our own IP address so that we can mount the automounter. We pass * localhost_address which could be used as the default localhost * name/address in amu_get_myaddress(). */ amu_get_myaddress(&myipaddr, gopt.localhost_address); plog(XLOG_INFO, "My ip addr is %s", inet_ntoa(myipaddr)); /* avoid hanging on other NFS servers if started elsewhere */ if (chdir("/") < 0) plog(XLOG_INFO, "cannot chdir to /: %m"); /* * Now check we are root. */ if (geteuid() != 0) { plog(XLOG_FATAL, "Must be root to mount filesystems (euid = %ld)", (long) geteuid()); going_down(1); } #ifdef HAVE_MAP_NIS /* * If the domain was specified then bind it here * to circumvent any default bindings that may * be done in the C library. */ if (gopt.nis_domain && yp_bind(gopt.nis_domain)) { plog(XLOG_FATAL, "Can't bind to NIS domain \"%s\"", gopt.nis_domain); going_down(1); } #endif /* HAVE_MAP_NIS */ if (!amuDebug(D_DAEMON)) ppid = daemon_mode(); /* * Lock process text and data segment in memory. */ if (gopt.flags & CFM_PROCESS_LOCK) { do_memory_locking(); } do_mapc_reload = clocktime(NULL) + gopt.map_reload_interval; /* * Register automounter with system. */ error = mount_automounter(ppid); if (error && ppid) kill(ppid, SIGALRM); #ifdef HAVE_FS_AUTOFS /* * XXX this should be part of going_down(), but I can't move it there * because it would be calling non-library code from the library... ugh */ if (amd_use_autofs) destroy_autofs_service(); #endif /* HAVE_FS_AUTOFS */ going_down(error); abort(); return 1; /* should never get here */ }
int main(int argc, char **argv) { char *networkName1, *networkNumber1; struct in_addr myipaddr; /* (An) IP address of this host */ char *testhost, *proto, *tmp_buf; int nv, ret; struct sockaddr_in *ip; struct hostent *hp = NULL; am_set_progname(argv[0]); if (gethostname(hostname, sizeof(hostname)) < 0) { perror(argv[0]); exit(1); } hostname[sizeof(hostname) - 1] = '\0'; /* get list of networks */ getwire(&networkName1, &networkNumber1); tmp_buf = print_wires(); if (tmp_buf) { fprintf(stderr, "%s", tmp_buf); XFREE(tmp_buf); } /* also print my IP address */ amu_get_myaddress(&myipaddr, NULL); fprintf(stderr, "My IP address is 0x%x.\n", (unsigned int) htonl(myipaddr.s_addr)); /* * NFS VERSION/PROTOCOL TESTS: * If argv[1] is specified perform nfs tests to that host, else use * localhost. */ if (argc > 1) testhost = argv[1]; else testhost = "localhost"; hp = gethostbyname(testhost); if (!hp) { fprintf(stderr, "NFS vers/proto failed: no such hostname \"%s\"\n", testhost); exit(1); } ip = (struct sockaddr_in *) xmalloc(sizeof(struct sockaddr_in)); memset((voidp) ip, 0, sizeof(*ip)); /* as per POSIX, sin_len need not be set (used internally by kernel) */ ip->sin_family = AF_INET; memmove((voidp) &ip->sin_addr, (voidp) hp->h_addr, sizeof(ip->sin_addr)); ip->sin_port = htons(NFS_PORT); fprintf(stderr, "NFS Version and protocol tests to host \"%s\"...\n", testhost); proto = "udp"; for (nv=2; nv<=3; ++nv) { fprintf(stderr, "\ttesting vers=%d, proto=\"%s\" -> ", nv, proto); ret = get_nfs_version(testhost, ip, nv, proto, 0); if (ret == 0) fprintf(stderr, "failed!\n"); else fprintf(stderr, "found version %d.\n", ret); } proto = "tcp"; for (nv=2; nv<=3; ++nv) { fprintf(stderr, "\ttesting vers=%d, proto=\"%s\" -> ", nv, proto); ret = get_nfs_version(testhost, ip, nv, proto, 0); if (ret == 0) fprintf(stderr, "failed!\n"); else fprintf(stderr, "found version %d.\n", ret); } exit(0); return 0; /* should never reach here */ }
/* * MAIN */ int main(int argc, char *argv[]) { int opt_ch; int errs = 0; char *server; struct sockaddr_in server_addr; CLIENT *clnt = NULL; struct hostent *hp; int nodefault = 0; struct timeval tv; char *progname = NULL; /* * Compute program name */ if (argv[0]) { progname = strrchr(argv[0], '/'); if (progname && progname[1]) progname++; else progname = argv[0]; } if (!progname) progname = "amq"; am_set_progname(progname); /* * Parse arguments */ while ((opt_ch = getopt(argc, argv, "Hfh:l:msuvx:D:pP:TUw")) != -1) switch (opt_ch) { case 'H': goto show_usage; break; case 'f': flush_flag = 1; nodefault = 1; break; case 'h': def_server = optarg; break; case 'l': amq_logfile = optarg; nodefault = 1; break; case 'm': minfo_flag = 1; nodefault = 1; break; case 'p': getpid_flag = 1; nodefault = 1; break; case 's': stats_flag = 1; nodefault = 1; break; case 'u': unmount_flag = 1; nodefault = 1; break; case 'v': getvers_flag = 1; nodefault = 1; break; case 'x': xlog_optstr = optarg; nodefault = 1; break; case 'D': debug_opts = optarg; nodefault = 1; break; case 'P': amd_program_number = atoi(optarg); break; case 'T': use_tcp_flag = 1; break; case 'U': use_udp_flag = 1; break; case 'w': getpwd_flag = 1; break; default: errs = 1; break; } if (optind == argc) { if (unmount_flag) errs = 1; } if (errs) { show_usage: fprintf(stderr, "\ Usage: %s [-fmpsvwHTU] [-h hostname] [-l log_file|\"syslog\"]\n\ \t[-x log_options] [-D debug_options]\n\ \t[-P program_number] [[-u] directory ...]\n", am_get_progname() ); exit(1); } /* set use_udp and use_tcp flags both to on if none are defined */ if (!use_tcp_flag && !use_udp_flag) use_tcp_flag = use_udp_flag = 1; #if defined(HAVE_CLUSTER_H) && defined(HAVE_CNODEID) && defined(HAVE_GETCCENT) /* * Figure out root server of cluster */ if (def_server == localhost) server = cluster_server(); else #endif /* defined(HAVE_CLUSTER_H) && defined(HAVE_CNODEID) && defined(HAVE_GETCCENT) */ server = def_server; /* * Get address of server */ if ((hp = gethostbyname(server)) == 0 && !STREQ(server, localhost)) { fprintf(stderr, "%s: Can't get address of %s\n", am_get_progname(), server); exit(1); } memset(&server_addr, 0, sizeof(server_addr)); /* as per POSIX, sin_len need not be set (used internally by kernel) */ server_addr.sin_family = AF_INET; if (hp) { memmove((voidp) &server_addr.sin_addr, (voidp) hp->h_addr, sizeof(server_addr.sin_addr)); } else { /* fake "localhost" */ server_addr.sin_addr.s_addr = htonl(0x7f000001); } /* * Create RPC endpoint */ tv.tv_sec = 5; /* 5 seconds for timeout or per retry */ tv.tv_usec = 0; if (use_tcp_flag) /* try tcp first */ clnt = clnt_create(server, amd_program_number, AMQ_VERSION, "tcp"); if (!clnt && use_udp_flag) { /* try udp next */ clnt = clnt_create(server, amd_program_number, AMQ_VERSION, "udp"); /* if ok, set timeout (valid for connectionless transports only) */ if (clnt) clnt_control(clnt, CLSET_RETRY_TIMEOUT, (char *) &tv); } if (!clnt) { fprintf(stderr, "%s: ", am_get_progname()); clnt_pcreateerror(server); exit(1); } /* * Control debugging */ if (debug_opts) { int *rc; amq_setopt opt; opt.as_opt = AMOPT_DEBUG; opt.as_str = debug_opts; rc = amqproc_setopt_1(&opt, clnt); if (rc && *rc < 0) { fprintf(stderr, "%s: daemon not compiled for debug\n", am_get_progname()); errs = 1; } else if (!rc || *rc > 0) { fprintf(stderr, "%s: debug setting for \"%s\" failed\n", am_get_progname(), debug_opts); errs = 1; } } /* * Control logging */ if (xlog_optstr) { int *rc; amq_setopt opt; opt.as_opt = AMOPT_XLOG; opt.as_str = xlog_optstr; rc = amqproc_setopt_1(&opt, clnt); if (!rc || *rc) { fprintf(stderr, "%s: setting log level to \"%s\" failed\n", am_get_progname(), xlog_optstr); errs = 1; } } /* * Control log file */ if (amq_logfile) { int *rc; amq_setopt opt; opt.as_opt = AMOPT_LOGFILE; opt.as_str = amq_logfile; rc = amqproc_setopt_1(&opt, clnt); if (!rc || *rc) { fprintf(stderr, "%s: setting logfile to \"%s\" failed\n", am_get_progname(), amq_logfile); errs = 1; } } /* * Flush map cache */ if (flush_flag) { int *rc; amq_setopt opt; opt.as_opt = AMOPT_FLUSHMAPC; opt.as_str = ""; rc = amqproc_setopt_1(&opt, clnt); if (!rc || *rc) { fprintf(stderr, "%s: amd on %s cannot flush the map cache\n", am_get_progname(), server); errs = 1; } } /* * getpwd info */ if (getpwd_flag) { char path[MAXPATHLEN+1]; char *wd = getcwd(path, MAXPATHLEN+1); amq_mount_tree_list *mlp = amqproc_export_1((voidp) 0, clnt); amq_mount_tree_p mt; u_int i; int flag; if (!wd) { perror("getcwd"); exit(1); } for (i = 0; mlp && i < mlp->amq_mount_tree_list_len; i++) { mt = mlp->amq_mount_tree_list_val[i]; while (1) { flag = 0; show_pwd(mt, path, sizeof(path), &flag); if (!flag) { printf("%s\n", path); break; } } } exit(0); } /* * Mount info */ if (minfo_flag) { int dummy; amq_mount_info_list *ml = amqproc_getmntfs_1(&dummy, clnt); if (ml) { int mwid = 0, dwid = 0, twid = 0; show_mi(ml, Calc, &mwid, &dwid, &twid); mwid++; dwid++; twid++; show_mi(ml, Full, &mwid, &dwid, &twid); } else { fprintf(stderr, "%s: amd on %s cannot provide mount info\n", am_get_progname(), server); } } /* * Get Version */ if (getvers_flag) { amq_string *spp = amqproc_getvers_1((voidp) 0, clnt); if (spp && *spp) { fputs(*spp, stdout); XFREE(*spp); } else { fprintf(stderr, "%s: failed to get version information\n", am_get_progname()); errs = 1; } } /* * Get PID of amd */ if (getpid_flag) { int *ip = amqproc_getpid_1((voidp) 0, clnt); if (ip && *ip) { printf("%d\n", *ip); } else { fprintf(stderr, "%s: failed to get PID of amd\n", am_get_progname()); errs = 1; } } /* * Apply required operation to all remaining arguments */ if (optind < argc) { do { char *fs = argv[optind++]; if (unmount_flag) { /* * Unmount request */ amqproc_umnt_1(&fs, clnt); } else { /* * Stats request */ amq_mount_tree_p *mtp = amqproc_mnttree_1(&fs, clnt); if (mtp) { amq_mount_tree *mt = *mtp; if (mt) { int mwid = 0, dwid = 0, twid = 0; show_mt(mt, Calc, &mwid, &dwid, &twid); mwid++; dwid++, twid++; printf("%-*.*s Uid Getattr Lookup RdDir RdLnk Statfs Mounted@\n", dwid, dwid, "What"); show_mt(mt, Stats, &mwid, &dwid, &twid); } else { fprintf(stderr, "%s: %s not automounted\n", am_get_progname(), fs); } xdr_pri_free((XDRPROC_T_TYPE) xdr_amq_mount_tree_p, (caddr_t) mtp); } else { fprintf(stderr, "%s: ", am_get_progname()); clnt_perror(clnt, server); errs = 1; } } } while (optind < argc); } else if (unmount_flag) { goto show_usage; } else if (stats_flag) { amq_mount_stats *ms = amqproc_stats_1((voidp) 0, clnt); if (ms) { show_ms(ms); } else { fprintf(stderr, "%s: ", am_get_progname()); clnt_perror(clnt, server); errs = 1; } } else if (!nodefault) { amq_mount_tree_list *mlp = amqproc_export_1((voidp) 0, clnt); if (mlp) { enum show_opt e = Calc; int mwid = 0, dwid = 0, pwid = 0; while (e != ShowDone) { u_int i; for (i = 0; i < mlp->amq_mount_tree_list_len; i++) { show_mt(mlp->amq_mount_tree_list_val[i], e, &mwid, &dwid, &pwid); } mwid++; dwid++, pwid++; if (e == Calc) e = Short; else if (e == Short) e = ShowDone; } } else { fprintf(stderr, "%s: ", am_get_progname()); clnt_perror(clnt, server); errs = 1; } } exit(errs); return errs; /* should never reach here */ }
int main(int argc, char *argv[]) { char *dot; char *mntopts = (char *) NULL; char hostpid_fs[MAXHOSTNAMELEN + 1 + 16]; /* room for ":(pid###)" */ char progpid_fs[PROGNAMESZ + 1 + 11]; /* room for ":pid" */ char preopts[128]; char *progname; int forcecache = 0; int forcefast = 0; int genflags = 0; int opt, ret; int opterrs = 0; int retry; int soNFS; /* NFS socket */ int s = -99; mntent_t mnt; nfs_args_t nfs_args; am_nfs_handle_t anh; struct dirent *direntry; struct group *grp; struct stat stmodes; DIR *mountdir; MTYPE_TYPE type = MOUNT_TYPE_NFS; #ifdef HAVE_SIGACTION struct sigaction sa; #endif /* not HAVE_SIGACTION */ #ifndef HAVE_TRANSPORT_TYPE_TLI struct sockaddr_in localsocket; #endif /* not HAVE_TRANSPORT_TYPE_TLI */ /* get program name and truncate so we don't overflow progpid_fs */ if ((progname = strrchr(argv[0], '/')) != NULL) progname++; else progname = argv[0]; if ((int) strlen(progname) > PROGNAMESZ) /* truncate to reasonable size */ progname[PROGNAMESZ] = '\0'; am_set_progname(progname); while ((opt = getopt(argc, argv, "a:c:CD:fg:hi:l:no:pP:x:v")) != -1) switch (opt) { case 'a': if (!optarg || optarg[0] != '/') { printf("%s: invalid directory for -a: %s\n", am_get_progname(), optarg); exit(3); } alt_spooldir = optarg; break; case 'c': if (!atoi(optarg)) { printf("%s: invalid interval for -c: %s\n", am_get_progname(), optarg); exit(3); } cache_interval = atoi(optarg); break; case 'C': forcecache++; break; case 'f': forcefast++; break; case 'g': hlfs_group = optarg; break; case 'i': if (!atoi(optarg)) { printf("%s: invalid interval for -i: %s\n", am_get_progname(), optarg); exit(3); } reloadinterval.it_interval.tv_sec = atoi(optarg); reloadinterval.it_value.tv_sec = atoi(optarg); break; case 'l': logfile = optarg; break; case 'n': noverify++; break; case 'o': mntopts = optarg; break; case 'p': printpid++; break; case 'P': passwdfile = optarg; break; case 'v': fprintf(stderr, "%s\n", HLFSD_VERSION); exit(0); case 'x': opterrs += switch_option(optarg); break; case 'D': #ifdef DEBUG opterrs += debug_option(optarg); #else /* not DEBUG */ fprintf(stderr, "%s: not compiled with DEBUG -- sorry.\n", am_get_progname()); #endif /* not DEBUG */ break; case 'h': case '?': opterrs++; } /* set some default debugging options */ if (xlog_level_init == ~0) switch_option(""); /* need my pid before any dlog/plog */ am_set_mypid(); #ifdef DEBUG switch_option("debug"); #endif /* DEBUG */ /* * Terminate if did not ask to forcecache (-C) and hlfsd would not be able * to set the minimum cache intervals. */ #if !defined(MNT2_NFS_OPT_ACREGMIN) && !defined(MNT2_NFS_OPT_NOAC) && !defined(HAVE_NFS_ARGS_T_ACREGMIN) if (!forcecache) { fprintf(stderr, "%s: will not be able to turn off attribute caches.\n", am_get_progname()); exit(1); } #endif /* !defined(MNT2_NFS_OPT_ACREGMIN) && !defined(MNT2_NFS_OPT_NOAC) && !defined(HAVE_NFS_ARGS_T_ACREGMIN) */ switch (argc - optind) { case 2: home_subdir = argv[optind + 1]; case 1: dir_name = argv[optind]; case 0: break; default: opterrs++; } if (opterrs) usage(); /* ensure that only root can run hlfsd */ if (geteuid()) { fprintf(stderr, "hlfsd can only be run as root\n"); exit(1); } setbuf(stdout, (char *) NULL); umask(0); /* find gid for hlfs_group */ if ((grp = getgrnam(hlfs_group)) == (struct group *) NULL) { fprintf(stderr, "%s: cannot get gid for group \"%s\".\n", am_get_progname(), hlfs_group); } else { hlfs_gid = grp->gr_gid; } /* get hostname for logging and open log before we reset umask */ gethostname(hostname, sizeof(hostname)); hostname[sizeof(hostname) - 1] = '\0'; if ((dot = strchr(hostname, '.')) != NULL) *dot = '\0'; orig_umask = umask(0); if (logfile) switch_to_logfile(logfile, orig_umask); #if defined(DEBUG) && !defined(MOUNT_TABLE_ON_FILE) if (debug_flags & D_MTAB) dlog("-D mtab option ignored"); #endif /* defined(DEBUG) && !defined(MOUNT_TABLE_ON_FILE) */ /* avoid hanging on other NFS servers if started elsewhere */ if (chdir("/") < 0) fatal("cannot chdir to /: %m"); if (geteuid() != 0) fatal("must be root to mount filesystems"); /* * dir_name must match "^(/.*)/([^/]+)$", and is split at last '/' with * slinkname = `basename $dir_name` - requires dir_name be writable */ if (dir_name[0] != '/' || ((slinkname = strrchr(dir_name, '/')), *slinkname++ = '\0', (dir_name[0] == '\0' || slinkname[0] == '\0'))) { if (slinkname) *--slinkname = '/'; printf("%s: invalid mount directory/link %s\n", am_get_progname(), dir_name); exit(3); } clock_valid = 0; /* invalidate logging clock */ if (!forcefast) { /* make sure mount point exists and is at least mode 555 */ if (stat(dir_name, &stmodes) < 0) if (errno != ENOENT || mkdirs(dir_name, 0555) < 0 || stat(dir_name, &stmodes) < 0) fatalerror(dir_name); if ((stmodes.st_mode & 0555) != 0555) { fprintf(stderr, "%s: directory %s not read/executable\n", am_get_progname(), dir_name); plog(XLOG_WARNING, "directory %s not read/executable", dir_name); } /* warn if extraneous stuff will be hidden by mount */ if ((mountdir = opendir(dir_name)) == NULL) fatalerror(dir_name); while ((direntry = readdir(mountdir)) != NULL) { if (!NSTREQ(".", direntry->d_name, NAMLEN(direntry)) && !NSTREQ("..", direntry->d_name, NAMLEN(direntry)) && !NSTREQ(slinkname, direntry->d_name, NAMLEN(direntry))) break; } if (direntry != NULL) { fprintf(stderr, "%s: %s/%s will be hidden by mount\n", am_get_progname(), dir_name, direntry->d_name); plog(XLOG_WARNING, "%s/%s will be hidden by mount\n", dir_name, direntry->d_name); } closedir(mountdir); /* make sure alternate spool dir exists */ if ((errno = mkdirs(alt_spooldir, OPEN_SPOOLMODE))) { fprintf(stderr, "%s: cannot create alternate dir ", am_get_progname()); perror(alt_spooldir); plog(XLOG_ERROR, "cannot create alternate dir %s: %m", alt_spooldir); } chmod(alt_spooldir, OPEN_SPOOLMODE); /* create failsafe link to alternate spool directory */ slinkname[-1] = '/'; /* unsplit dir_name to include link */ if (lstat(dir_name, &stmodes) == 0 && (stmodes.st_mode & S_IFMT) != S_IFLNK) { fprintf(stderr, "%s: failsafe %s not a symlink\n", am_get_progname(), dir_name); plog(XLOG_WARNING, "failsafe %s not a symlink\n", dir_name); } else { unlink(dir_name); if (symlink(alt_spooldir, dir_name) < 0) { fprintf(stderr, "%s: cannot create failsafe symlink %s -> ", am_get_progname(), dir_name); perror(alt_spooldir); plog(XLOG_WARNING, "cannot create failsafe symlink %s -> %s: %m", dir_name, alt_spooldir); } } slinkname[-1] = '\0'; /* resplit dir_name */ } /* end of "if (!forcefast) {" */ /* * Register hlfsd as an nfs service with the portmapper. */ #ifdef HAVE_TRANSPORT_TYPE_TLI ret = create_nfs_service(&soNFS, &nfs_port, &nfsxprt, nfs_program_2); #else /* not HAVE_TRANSPORT_TYPE_TLI */ ret = create_nfs_service(&soNFS, &nfs_port, &nfsxprt, nfs_program_2); #endif /* not HAVE_TRANSPORT_TYPE_TLI */ if (ret != 0) fatal("cannot create NFS service"); #ifdef HAVE_SIGACTION sa.sa_handler = proceed; sa.sa_flags = 0; sigemptyset(&(sa.sa_mask)); sigaddset(&(sa.sa_mask), SIGUSR2); sigaction(SIGUSR2, &sa, NULL); #else /* not HAVE_SIGACTION */ signal(SIGUSR2, proceed); #endif /* not HAVE_SIGACTION */ plog(XLOG_INFO, "Initializing hlfsd..."); hlfsd_init(); /* start up child (forking) to run svc_run */ #ifdef HAVE_SIGACTION sa.sa_handler = reaper; sa.sa_flags = 0; sigemptyset(&(sa.sa_mask)); sigaddset(&(sa.sa_mask), SIGCHLD); sigaction(SIGCHLD, &sa, NULL); #else /* not HAVE_SIGACTION */ signal(SIGCHLD, reaper); #endif /* not HAVE_SIGACTION */ #ifdef DEBUG /* * In the parent, if -D nodaemon (or -D daemon) , we don't need to * set this signal handler. */ amuDebug(D_DAEMON) { #endif /* DEBUG */ /* XXX: port to use pure svr4 signals */ s = -99; while (stoplight != SIGUSR2) { plog(XLOG_INFO, "parent waits for child to setup (stoplight=%d)", stoplight); s = sigpause(0); /* wait for child to set up */ sleep(1); } #ifdef DEBUG } #endif /* DEBUG */ /* * setup options to mount table (/etc/{mtab,mnttab}) entry */ sprintf(hostpid_fs, "%s:(pid%d)", hostname, masterpid); memset((char *) &mnt, 0, sizeof(mnt)); mnt.mnt_dir = dir_name; /* i.e., "/mail" */ mnt.mnt_fsname = hostpid_fs; if (mntopts) { mnt.mnt_opts = mntopts; } else { strcpy(preopts, default_mntopts); /* * Turn off all kinds of attribute and symlink caches as * much as possible. Also make sure that mount does not * show up to df. */ #ifdef MNTTAB_OPT_INTR strcat(preopts, ","); strcat(preopts, MNTTAB_OPT_INTR); #endif /* MNTTAB_OPT_INTR */ #ifdef MNTTAB_OPT_IGNORE strcat(preopts, ","); strcat(preopts, MNTTAB_OPT_IGNORE); #endif /* MNTTAB_OPT_IGNORE */ #ifdef MNT2_GEN_OPT_CACHE strcat(preopts, ",nocache"); #endif /* MNT2_GEN_OPT_CACHE */ #ifdef MNT2_NFS_OPT_SYMTTL strcat(preopts, ",symttl=0"); #endif /* MNT2_NFS_OPT_SYMTTL */ mnt.mnt_opts = preopts; } /* * Make sure that amd's top-level NFS mounts are hidden by default * from df. * If they don't appear to support the either the "ignore" mnttab * option entry, or the "auto" one, set the mount type to "nfs". */ #ifdef HIDE_MOUNT_TYPE mnt.mnt_type = HIDE_MOUNT_TYPE; #else /* not HIDE_MOUNT_TYPE */ mnt.mnt_type = "nfs"; #endif /* not HIDE_MOUNT_TYPE */ /* some systems don't have a mount type, but a mount flag */ #ifndef HAVE_TRANSPORT_TYPE_TLI amu_get_myaddress(&localsocket.sin_addr); localsocket.sin_family = AF_INET; localsocket.sin_port = htons(nfsxprt->xp_port); #endif /* not HAVE_TRANSPORT_TYPE_TLI */ /* * Update hostname field. * Make some name prog:pid (i.e., hlfsd:174) for hostname */ sprintf(progpid_fs, "%s:%d", am_get_progname(), masterpid); /* Most kernels have a name length restriction. */ if ((int) strlen(progpid_fs) >= (int) MAXHOSTNAMELEN) strcpy(progpid_fs + MAXHOSTNAMELEN - 3, ".."); genflags = compute_mount_flags(&mnt); retry = hasmntval(&mnt, MNTTAB_OPT_RETRY); if (retry <= 0) retry = 1; /* XXX */ memmove(&anh.v2.fhs_fh, root_fhp, sizeof(*root_fhp)); #ifdef HAVE_TRANSPORT_TYPE_TLI compute_nfs_args(&nfs_args, &mnt, genflags, nfsncp, NULL, /* remote host IP addr is set below */ NFS_VERSION, /* version 2 */ "udp", /* XXX: shouldn't this be "udp"? */ &anh, progpid_fs, /* host name for kernel */ hostpid_fs); /* filesystem name for kernel */ /* * IMPORTANT: set the correct IP address AFTERWARDS. It cannot * be done using the normal mechanism of compute_nfs_args(), because * that one will allocate a new address and use NFS_SA_DREF() to copy * parts to it, while assuming that the ip_addr passed is always * a "struct sockaddr_in". That assumption is incorrect on TLI systems, * because they define a special macro HOST_SELF which is DIFFERENT * than localhost (127.0.0.1)! */ nfs_args.addr = &nfsxprt->xp_ltaddr; #else /* not HAVE_TRANSPORT_TYPE_TLI */ compute_nfs_args(&nfs_args, &mnt, genflags, NULL, &localsocket, NFS_VERSION, /* version 2 */ "udp", /* XXX: shouldn't this be "udp"? */ &anh, progpid_fs, /* host name for kernel */ hostpid_fs); /* filesystem name for kernel */ #endif /* not HAVE_TRANSPORT_TYPE_TLI */ /************************************************************************* * NOTE: while compute_nfs_args() works ok for regular NFS mounts * * the toplvl one is not, and so some options must be corrected by hand * * more carefully, *after* compute_nfs_args() runs. * *************************************************************************/ compute_automounter_nfs_args(&nfs_args, &mnt); clock_valid = 0; /* invalidate logging clock */ /* * The following code could be cleverly ifdef-ed, but I duplicated the * mount_fs call three times for simplicity and readability. */ #ifdef DEBUG /* * For some reason, this mount may have to be done in the background, if I am * using -D nodebug. I suspect that the actual act of mounting requires * calling to hlfsd itself to invoke one or more of its nfs calls, to stat * /mail. That means that even if you say -D nodaemon, at least the mount * of hlfsd itself on top of /mail will be done in the background. * The other alternative I have is to run svc_run, but set a special * signal handler to perform the mount in N seconds via some alarm. * -Erez Zadok. */ amuDebug(D_DAEMON) { /* asked for -D daemon */ plog(XLOG_INFO, "parent NFS mounting hlfsd service points"); if (mount_fs2(&mnt, dir_name, genflags, (caddr_t) &nfs_args, retry, type, 0, NULL, mnttab_file_name) < 0) fatal("nfsmount: %m"); } else { /* asked for -D nodaemon */ if (fork() == 0) { /* child runs mount */