static int probe_ext2(struct blkid_probe *probe, struct blkid_magic *id, unsigned char *buf) { struct ext2_super_block *es; es = (struct ext2_super_block *)buf; /* Distinguish between ext3 and ext2 */ if ((blkid_le32(es->s_feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) return -BLKID_ERR_PARAM; /* Any features which ext2 doesn't understand */ if ((blkid_le32(es->s_feature_ro_compat) & EXT2_FEATURE_RO_COMPAT_UNSUPPORTED) || (blkid_le32(es->s_feature_incompat) & EXT2_FEATURE_INCOMPAT_UNSUPPORTED)) return -BLKID_ERR_PARAM; /* * If ext2 is not present, but ext4 or ext4dev are, then * disclaim we are ext2 */ if (!system_supports_ext2() && (system_supports_ext4() || system_supports_ext4dev()) && linux_version_code() >= EXT4_SUPPORTS_EXT2) return -BLKID_ERR_PARAM; get_ext2_info(probe->dev, id, buf); return 0; }
static int nfs_append_sloppy_option(struct mount_options *options) { if (!sloppy || linux_version_code() < MAKE_VERSION(2, 6, 27)) return 1; if (po_append(options, "sloppy") == PO_FAILED) return 0; return 1; }
int create_autofs_service(void) { hash_init(); /* not the best place, but... */ if (linux_version_code() < KERNEL_VERSION(2,4,0)) bind_works = 0; return 0; }
int svcgssd_limit_krb5_enctypes(void) { u_int maj_stat, min_stat; krb5_enctype old_kernel_enctypes[] = { ENCTYPE_DES_CBC_CRC, ENCTYPE_DES_CBC_MD5, ENCTYPE_DES_CBC_MD4 }; krb5_enctype new_kernel_enctypes[] = { ENCTYPE_AES256_CTS_HMAC_SHA1_96, ENCTYPE_AES128_CTS_HMAC_SHA1_96, ENCTYPE_DES3_CBC_SHA1, ENCTYPE_ARCFOUR_HMAC, ENCTYPE_DES_CBC_CRC, ENCTYPE_DES_CBC_MD5, ENCTYPE_DES_CBC_MD4 }; krb5_enctype *default_enctypes, *enctypes; int default_num_enctypes, num_enctypes; if (linux_version_code() < MAKE_VERSION(2, 6, 35)) { default_enctypes = old_kernel_enctypes; default_num_enctypes = sizeof(old_kernel_enctypes) / sizeof(old_kernel_enctypes[0]); } else { default_enctypes = new_kernel_enctypes; default_num_enctypes = sizeof(new_kernel_enctypes) / sizeof(new_kernel_enctypes[0]); } get_kernel_supported_enctypes(); if (parsed_enctypes != NULL) { enctypes = parsed_enctypes; num_enctypes = parsed_num_enctypes; printerr(2, "%s: Calling gss_set_allowable_enctypes with %d " "enctypes from the kernel\n", __func__, num_enctypes); } else { enctypes = default_enctypes; num_enctypes = default_num_enctypes; printerr(2, "%s: Calling gss_set_allowable_enctypes with %d " "enctypes from defaults\n", __func__, num_enctypes); } maj_stat = set_allowable_enctypes(&min_stat, gssd_creds, &krb5oid, num_enctypes, enctypes); if (maj_stat != GSS_S_COMPLETE) { printerr(1, "WARNING: gss_set_allowable_enctypes failed\n"); pgsserr("svcgssd_limit_krb5_enctypes: gss_set_allowable_enctypes", maj_stat, min_stat, &krb5oid); return -1; } return 0; }
/* * Unfortunately, the kernel prints annoying console messages * in case of an unexpected nfs mount version (instead of * just returning some error). Therefore we'll have to try * and figure out what version the kernel expects. * * Variables: * KERNEL_NFS_MOUNT_VERSION: kernel sources at compile time * NFS_MOUNT_VERSION: these nfsmount sources at compile time * nfs_mount_version: version this source and running kernel can handle */ static void find_kernel_nfs_mount_version(void) { int kernel_version = linux_version_code(); if (kernel_version) { if (kernel_version < MAKE_VERSION(2,1,32)) nfs_mount_version = 1; else nfs_mount_version = 3; } if (nfs_mount_version > NFS_MOUNT_VERSION) nfs_mount_version = NFS_MOUNT_VERSION; }
static int probe_ext4(struct blkid_probe *probe, struct blkid_magic *id, unsigned char *buf) { struct ext2_super_block *es; es = (struct ext2_super_block *)buf; /* Distinguish from jbd */ if (blkid_le32(es->s_feature_incompat) & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) return -BLKID_ERR_PARAM; /* * If the filesystem does not have a journal and ext2 is not * present, then force this to be detected as an ext2 * filesystem. */ if (!(blkid_le32(es->s_feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) && !system_supports_ext2() && system_supports_ext4() && linux_version_code() >= EXT4_SUPPORTS_EXT2) goto force_ext4; /* Ext4 has at least one feature which ext3 doesn't understand */ if (!(blkid_le32(es->s_feature_ro_compat) & EXT3_FEATURE_RO_COMPAT_UNSUPPORTED) && !(blkid_le32(es->s_feature_incompat) & EXT3_FEATURE_INCOMPAT_UNSUPPORTED)) return -BLKID_ERR_PARAM; force_ext4: /* * If the filesystem is a OK for use by in-development * filesystem code, and ext4dev is supported or ext4 is not * supported, then don't call ourselves ext4, so we can redo * the detection and mark the filesystem as ext4dev. * * If the filesystem is marked as in use by production * filesystem, then it can only be used by ext4 and NOT by * ext4dev. */ if (blkid_le32(es->s_flags) & EXT2_FLAGS_TEST_FILESYS) { if (system_supports_ext4dev() || !system_supports_ext4()) return -BLKID_ERR_PARAM; } get_ext2_info(probe->dev, id, buf); return 0; }
static int probe_ext4dev(struct blkid_probe *probe, struct blkid_magic *id, unsigned char *buf) { struct ext2_super_block *es; es = (struct ext2_super_block *)buf; /* Distinguish from jbd */ if (blkid_le32(es->s_feature_incompat) & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) return -BLKID_ERR_PARAM; /* * If the filesystem does not have a journal and ext2 and ext4 * is not present, then force this to be detected as an * ext4dev filesystem. */ if (!(blkid_le32(es->s_feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL) && !system_supports_ext2() && !system_supports_ext4() && system_supports_ext4dev() && linux_version_code() >= EXT4_SUPPORTS_EXT2) goto force_ext4dev; /* * If the filesystem is marked as OK for use by in-development * filesystem code, but ext4dev is not supported, and ext4 is, * then don't call ourselves ext4dev, since we should be * detected as ext4 in that case. * * If the filesystem is marked as in use by production * filesystem, then it can only be used by ext4 and NOT by * ext4dev, so always disclaim we are ext4dev in that case. */ if (blkid_le32(es->s_flags) & EXT2_FLAGS_TEST_FILESYS) { if (!system_supports_ext4dev() && system_supports_ext4()) return -BLKID_ERR_PARAM; } else return -BLKID_ERR_PARAM; force_ext4dev: get_ext2_info(probe->dev, id, buf); return 0; }
static int nfs_set_version(struct nfsmount_info *mi) { if (!nfs_nfs_version(mi->options, &mi->version)) return 0; if (strncmp(mi->type, "nfs4", 4) == 0) mi->version = 4; /* * Before 2.6.32, the kernel NFS client didn't * support "-t nfs vers=4" mounts, so NFS version * 4 cannot be included when autonegotiating * while running on those kernels. */ if (mi->version == 0 && linux_version_code() <= MAKE_VERSION(2, 6, 31)) mi->version = 3; /* * If we still don't know, check for version-specific * mount options. */ if (mi->version == 0) { if (po_contains(mi->options, "mounthost") || po_contains(mi->options, "mountaddr") || po_contains(mi->options, "mountvers") || po_contains(mi->options, "mountproto")) mi->version = 3; } /* * If enabled, see if the default version was * set in the config file */ nfs_default_version(mi); return 1; }
/* * Unfortunately, the kernel prints annoying console messages * in case of an unexpected nfs mount version (instead of * just returning some error). Therefore we'll have to try * and figure out what version the kernel expects. * * Variables: * NFS_MOUNT_VERSION: these nfsmount sources at compile time * nfs_mount_version: version this source and running kernel can handle */ static int find_kernel_nfs_mount_version(void) { static int kernel_version = -1; int nfs_mount_version = NFS_MOUNT_VERSION; if (kernel_version == -1) kernel_version = linux_version_code(); if (kernel_version) { if (kernel_version < MAKE_VERSION(2,1,32)) nfs_mount_version = 1; else if (kernel_version < MAKE_VERSION(2,2,18)) nfs_mount_version = 3; else if (kernel_version < MAKE_VERSION(2,3,0)) nfs_mount_version = 4; /* since 2.2.18pre9 */ else if (kernel_version < MAKE_VERSION(2,3,99)) nfs_mount_version = 3; else nfs_mount_version = 4; /* since 2.3.99pre4 */ } if (nfs_mount_version > NFS_MOUNT_VERSION) nfs_mount_version = NFS_MOUNT_VERSION; return nfs_mount_version; }
int nfsmount(const char *spec, const char *node, int *flags, char **extra_opts, char **mount_opts, int running_bg) { static char *prev_bg_host; char hostdir[1024]; CLIENT *mclient; char *hostname; char *dirname; char *old_opts; char *mounthost=NULL; char new_opts[1024]; fhandle root_fhandle; struct timeval total_timeout; enum clnt_stat clnt_stat; static struct nfs_mount_data data; char *opt, *opteq; int val; struct hostent *hp; struct sockaddr_in server_addr; struct sockaddr_in mount_server_addr; int msock, fsock; struct timeval retry_timeout; struct fhstatus status; struct stat statbuf; char *s; int port; int mountport; int bg; int soft; int intr; int posix; int nocto; int noac; int nolock; int retry; int tcp; int mountprog; int mountvers; int nfsprog; int nfsvers; int retval; time_t t; time_t prevt; time_t timeout; find_kernel_nfs_mount_version(); retval = EX_FAIL; msock = fsock = -1; mclient = NULL; if (strlen(spec) >= sizeof(hostdir)) { fprintf(stderr, "mount: " "excessively long host:dir argument\n"); goto fail; } strcpy(hostdir, spec); if ((s = (strchr(hostdir, ':')))) { hostname = hostdir; dirname = s + 1; *s = '\0'; } else { fprintf(stderr, "mount: " "directory to mount not in host:dir format\n"); goto fail; } server_addr.sin_family = AF_INET; #if 1 /* old libc's do not have inet_aton() -- change 1 to 0 */ if (!inet_aton(hostname, &server_addr.sin_addr)) #endif { #ifdef EMBED fprintf(stderr, "ERROR (%d): no gethostbyname()\n", __LINE__); #else if ((hp = gethostbyname(hostname)) == NULL) { fprintf(stderr, "mount: can't get address for %s\n", hostname); goto fail; } else { if (hp->h_length > sizeof(struct in_addr)) { fprintf(stderr, "mount: got bad hp->h_length\n"); hp->h_length = sizeof(struct in_addr); } memcpy(&server_addr.sin_addr, hp->h_addr, hp->h_length); } #endif } memcpy (&mount_server_addr, &server_addr, sizeof (mount_server_addr)); /* add IP address to mtab options for use when unmounting */ s = inet_ntoa(server_addr.sin_addr); old_opts = *extra_opts; if (!old_opts) old_opts = ""; if (strlen(old_opts) + strlen(s) + 10 >= sizeof(new_opts)) { fprintf(stderr, "mount: " "excessively long option argument\n"); goto fail; } sprintf(new_opts, "%s%saddr=%s", old_opts, *old_opts ? "," : "", s); *extra_opts = xstrdup(new_opts); /* Set default options. * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to * let the kernel decide. * timeo is filled in after we know whether it'll be TCP or UDP. */ memset(&data, 0, sizeof(data)); data.retrans = 3; data.acregmin = 3; data.acregmax = 60; data.acdirmin = 30; data.acdirmax = 60; #if NFS_MOUNT_VERSION >= 2 data.namlen = NAME_MAX; #endif bg = 0; soft = 0; intr = 0; posix = 0; nocto = 0; nolock = 0; noac = 0; retry = 10000; /* 10000 minutes ~ 1 week */ tcp = 0; mountprog = MOUNTPROG; mountvers = MOUNTVERS; port = 0; mountport = 0; nfsprog = NFS_PROGRAM; nfsvers = NFS_VERSION; /* parse options */ for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) { if ((opteq = strchr(opt, '='))) { val = atoi(opteq + 1); *opteq = '\0'; if (!strcmp(opt, "rsize")) data.rsize = val; else if (!strcmp(opt, "wsize")) data.wsize = val; else if (!strcmp(opt, "timeo")) data.timeo = val; else if (!strcmp(opt, "retrans")) data.retrans = val; else if (!strcmp(opt, "acregmin")) data.acregmin = val; else if (!strcmp(opt, "acregmax")) data.acregmax = val; else if (!strcmp(opt, "acdirmin")) data.acdirmin = val; else if (!strcmp(opt, "acdirmax")) data.acdirmax = val; else if (!strcmp(opt, "actimeo")) { data.acregmin = val; data.acregmax = val; data.acdirmin = val; data.acdirmax = val; } else if (!strcmp(opt, "retry")) retry = val; else if (!strcmp(opt, "port")) port = val; else if (!strcmp(opt, "mountport")) mountport = val; else if (!strcmp(opt, "mounthost")) mounthost=xstrndup(opteq+1, strcspn(opteq+1," \t\n\r,")); else if (!strcmp(opt, "mountprog")) mountprog = val; else if (!strcmp(opt, "mountvers")) mountvers = val; else if (!strcmp(opt, "nfsprog")) nfsprog = val; else if (!strcmp(opt, "nfsvers")) nfsvers = val; else if (!strcmp(opt, "namlen")) { #if NFS_MOUNT_VERSION >= 2 if (nfs_mount_version >= 2) data.namlen = val; else #endif printf("Warning: Option namlen is not supported.\n"); } else if (!strcmp(opt, "addr")) /* ignore */; else { printf("unknown nfs mount parameter: " "%s=%d\n", opt, val); goto fail; } } else { val = 1; if (!strncmp(opt, "no", 2)) { val = 0; opt += 2; } if (!strcmp(opt, "bg")) bg = val; else if (!strcmp(opt, "fg")) bg = !val; else if (!strcmp(opt, "soft")) soft = val; else if (!strcmp(opt, "hard")) soft = !val; else if (!strcmp(opt, "intr")) intr = val; else if (!strcmp(opt, "posix")) posix = val; else if (!strcmp(opt, "cto")) nocto = !val; else if (!strcmp(opt, "ac")) noac = !val; else if (!strcmp(opt, "tcp")) tcp = val; else if (!strcmp(opt, "udp")) tcp = !val; else if (!strcmp(opt, "lock")) { if (nfs_mount_version >= 3) nolock = !val; else printf("Warning: option nolock is not supported.\n"); } else { if (!sloppy) { printf("unknown nfs mount option: " "%s%s\n", val ? "" : "no", opt); goto fail; } } } } data.flags = (soft ? NFS_MOUNT_SOFT : 0) | (intr ? NFS_MOUNT_INTR : 0) | (posix ? NFS_MOUNT_POSIX : 0) | (nocto ? NFS_MOUNT_NOCTO : 0) | (noac ? NFS_MOUNT_NOAC : 0); #if NFS_MOUNT_VERSION >= 2 if (nfs_mount_version >= 2) data.flags |= (tcp ? NFS_MOUNT_TCP : 0); #endif #if NFS_MOUNT_VERSION >= 3 if (nfs_mount_version >= 3) data.flags |= (nolock ? NFS_MOUNT_NONLM : 0); #endif /* Adjust options if none specified */ if (!data.timeo) data.timeo = tcp ? 70 : 7; #ifdef NFS_MOUNT_DEBUG printf("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n", data.rsize, data.wsize, data.timeo, data.retrans); printf("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n", data.acregmin, data.acregmax, data.acdirmin, data.acdirmax); printf("port = %d, bg = %d, retry = %d, flags = %.8x\n", port, bg, retry, data.flags); printf("mountprog = %d, mountvers = %d, nfsprog = %d, nfsvers = %d\n", mountprog, mountvers, nfsprog, nfsvers); printf("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d\n", (data.flags & NFS_MOUNT_SOFT) != 0, (data.flags & NFS_MOUNT_INTR) != 0, (data.flags & NFS_MOUNT_POSIX) != 0, (data.flags & NFS_MOUNT_NOCTO) != 0, (data.flags & NFS_MOUNT_NOAC) != 0); #if NFS_MOUNT_VERSION >= 2 printf("tcp = %d\n", (data.flags & NFS_MOUNT_TCP) != 0); #endif #endif data.version = nfs_mount_version; *mount_opts = (char *) &data; if (*flags & MS_REMOUNT) return 0; /* * If the previous mount operation on the same host was * backgrounded, and the "bg" for this mount is also set, * give up immediately, to avoid the initial timeout. */ if (bg && !running_bg && prev_bg_host && strcmp(hostname, prev_bg_host) == 0) { if (retry > 0) retval = EX_BG; return retval; } /* create mount deamon client */ /* See if the nfs host = mount host. */ if (mounthost) { if (mounthost[0] >= '0' && mounthost[0] <= '9') { mount_server_addr.sin_family = AF_INET; mount_server_addr.sin_addr.s_addr = inet_addr(hostname); } else { #ifdef EMBED fprintf(stderr, "ERROR (%d): no gethostbyname()\n", __LINE__); #else if ((hp = gethostbyname(mounthost)) == NULL) { fprintf(stderr, "mount: can't get address for %s\n", hostname); goto fail; } else { if (hp->h_length > sizeof(struct in_addr)) { fprintf(stderr, "mount: got bad hp->h_length?\n"); hp->h_length = sizeof(struct in_addr); } mount_server_addr.sin_family = AF_INET; memcpy(&mount_server_addr.sin_addr, hp->h_addr, hp->h_length); } #endif } } /* * The following loop implements the mount retries. On the first * call, "running_bg" is 0. When the mount times out, and the * "bg" option is set, the exit status EX_BG will be returned. * For a backgrounded mount, there will be a second call by the * child process with "running_bg" set to 1. * * The case where the mount point is not present and the "bg" * option is set, is treated as a timeout. This is done to * support nested mounts. * * The "retry" count specified by the user is the number of * minutes to retry before giving up. * * Only the first error message will be displayed. */ retry_timeout.tv_sec = 3; retry_timeout.tv_usec = 0; total_timeout.tv_sec = 20; total_timeout.tv_usec = 0; timeout = time(NULL) + 60 * retry; prevt = 0; t = 30; val = 1; for (;;) { if (bg && stat(node, &statbuf) == -1) { if (running_bg) { sleep(val); /* 1, 2, 4, 8, 16, 30, ... */ val *= 2; if (val > 30) val = 30; } } else { /* be careful not to use too many CPU cycles */ if (t - prevt < 30) sleep(30); /* contact the mount daemon via TCP */ mount_server_addr.sin_port = htons(mountport); msock = RPC_ANYSOCK; mclient = clnttcp_create(&mount_server_addr, mountprog, mountvers, &msock, 0, 0); /* if this fails, contact the mount daemon via UDP */ if (!mclient) { mount_server_addr.sin_port = htons(mountport); msock = RPC_ANYSOCK; mclient = clntudp_create(&mount_server_addr, mountprog, mountvers, retry_timeout, &msock); } if (mclient) { /* try to mount hostname:dirname */ mclient->cl_auth = authunix_create_default(); clnt_stat = clnt_call(mclient, MOUNTPROC_MNT, (xdrproc_t) xdr_dirpath, (caddr_t) &dirname, (xdrproc_t) xdr_fhstatus, (caddr_t) &status, total_timeout); if (clnt_stat == RPC_SUCCESS) break; /* we're done */ if (errno != ECONNREFUSED) { clnt_perror(mclient, "mount"); goto fail; /* don't retry */ } if (!running_bg && prevt == 0) clnt_perror(mclient, "mount"); auth_destroy(mclient->cl_auth); clnt_destroy(mclient); mclient = 0; close(msock); } else { if (!running_bg && prevt == 0) clnt_pcreateerror("mount"); } prevt = t; } if (!bg) goto fail; if (!running_bg) { prev_bg_host = xstrdup(hostname); if (retry > 0) retval = EX_BG; goto fail; } t = time(NULL); if (t >= timeout) goto fail; } if (status.fhs_status != 0) { fprintf(stderr, "mount: %s:%s failed, reason given by server: %s\n", hostname, dirname, nfs_strerror(status.fhs_status)); goto fail; } memcpy((char *) &root_fhandle, (char *) status.fhstatus_u.fhs_fhandle, sizeof (root_fhandle)); /* create nfs socket for kernel */ if (tcp) { if (nfs_mount_version < 3) { printf("NFS over TCP is not supported.\n"); goto fail; } fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); } else fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); if (fsock < 0) { perror("nfs socket"); goto fail; } if (bindresvport(fsock, 0) < 0) { perror("nfs bindresvport"); goto fail; } if (port == 0) { server_addr.sin_port = PMAPPORT; port = pmap_getport(&server_addr, nfsprog, nfsvers, tcp ? IPPROTO_TCP : IPPROTO_UDP); if (port == 0) port = NFS_PORT; #ifdef NFS_MOUNT_DEBUG else printf("used portmapper to find NFS port\n"); #endif } #ifdef NFS_MOUNT_DEBUG printf("using port %d for nfs deamon\n", port); #endif server_addr.sin_port = htons(port); /* * connect() the socket for kernels 1.3.10 and below only, * to avoid problems with multihomed hosts. * --Swen */ if (linux_version_code() <= 66314 && connect(fsock, (struct sockaddr *) &server_addr, sizeof (server_addr)) < 0) { perror("nfs connect"); goto fail; } /* prepare data structure for kernel */ data.fd = fsock; memcpy((char *) &data.root, (char *) &root_fhandle, sizeof (root_fhandle)); memcpy((char *) &data.addr, (char *) &server_addr, sizeof(data.addr)); strncpy(data.hostname, hostname, sizeof(data.hostname)); /* clean up */ auth_destroy(mclient->cl_auth); clnt_destroy(mclient); close(msock); return 0; /* abort */ fail: if (msock != -1) { if (mclient) { auth_destroy(mclient->cl_auth); clnt_destroy(mclient); } close(msock); } if (fsock != -1) close(fsock); return retval; }
int nfsmount(const char *spec, const char *node, int *flags, char **extra_opts, char **mount_opts, int *nfs_mount_vers, int running_bg) { static char *prev_bg_host; char hostdir[1024]; CLIENT *mclient; char *hostname, *dirname, *old_opts, *mounthost = NULL; char new_opts[1024]; struct timeval total_timeout; enum clnt_stat clnt_stat; static struct nfs_mount_data data; char *opt, *opteq; int nfs_mount_version; int val; struct hostent *hp; struct sockaddr_in server_addr; struct sockaddr_in mount_server_addr; struct pmap *pm_mnt; int msock, fsock; struct timeval retry_timeout; union { struct fhstatus nfsv2; struct mountres3 nfsv3; } status; struct stat statbuf; char *s; int port, mountport, proto, bg, soft, intr; int posix, nocto, noac, nolock, broken_suid; int retry, tcp; int mountprog, mountvers, nfsprog, nfsvers; int retval; time_t t; time_t prevt; time_t timeout; /* The version to try is either specified or 0 In case it is 0 we tell the caller what we tried */ if (!*nfs_mount_vers) *nfs_mount_vers = find_kernel_nfs_mount_version(); nfs_mount_version = *nfs_mount_vers; retval = EX_FAIL; msock = fsock = -1; mclient = NULL; if (strlen(spec) >= sizeof(hostdir)) { fprintf(stderr, _("mount: " "excessively long host:dir argument\n")); goto fail; } strcpy(hostdir, spec); if ((s = strchr(hostdir, ':'))) { hostname = hostdir; dirname = s + 1; *s = '\0'; /* Ignore all but first hostname in replicated mounts until they can be fully supported. ([email protected]) */ if ((s = strchr(hostdir, ','))) { *s = '\0'; fprintf(stderr, _("mount: warning: " "multiple hostnames not supported\n")); } } else { fprintf(stderr, _("mount: " "directory to mount not in host:dir format\n")); goto fail; } server_addr.sin_family = AF_INET; #ifdef HAVE_inet_aton if (!inet_aton(hostname, &server_addr.sin_addr)) #endif { if ((hp = gethostbyname(hostname)) == NULL) { fprintf(stderr, _("mount: can't get address for %s\n"), hostname); goto fail; } else { if (hp->h_length > sizeof(struct in_addr)) { fprintf(stderr, _("mount: got bad hp->h_length\n")); hp->h_length = sizeof(struct in_addr); } memcpy(&server_addr.sin_addr, hp->h_addr, hp->h_length); } } memcpy (&mount_server_addr, &server_addr, sizeof (mount_server_addr)); /* add IP address to mtab options for use when unmounting */ s = inet_ntoa(server_addr.sin_addr); old_opts = *extra_opts; if (!old_opts) old_opts = ""; if (strlen(old_opts) + strlen(s) + 10 >= sizeof(new_opts)) { fprintf(stderr, _("mount: " "excessively long option argument\n")); goto fail; } sprintf(new_opts, "%s%saddr=%s", old_opts, *old_opts ? "," : "", s); *extra_opts = xstrdup(new_opts); /* Set default options. * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to * let the kernel decide. * timeo is filled in after we know whether it'll be TCP or UDP. */ memset(&data, 0, sizeof(data)); data.retrans = 3; data.acregmin = 3; data.acregmax = 60; data.acdirmin = 30; data.acdirmax = 60; #if NFS_MOUNT_VERSION >= 2 data.namlen = NAME_MAX; #endif bg = 0; soft = 0; intr = 0; posix = 0; nocto = 0; nolock = 0; broken_suid = 0; noac = 0; retry = 10000; /* 10000 minutes ~ 1 week */ tcp = 0; mountprog = MOUNTPROG; mountvers = 0; port = 0; mountport = 0; nfsprog = NFS_PROGRAM; nfsvers = 0; /* parse options */ for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) { if ((opteq = strchr(opt, '='))) { val = atoi(opteq + 1); *opteq = '\0'; if (!strcmp(opt, "rsize")) data.rsize = val; else if (!strcmp(opt, "wsize")) data.wsize = val; else if (!strcmp(opt, "timeo")) data.timeo = val; else if (!strcmp(opt, "retrans")) data.retrans = val; else if (!strcmp(opt, "acregmin")) data.acregmin = val; else if (!strcmp(opt, "acregmax")) data.acregmax = val; else if (!strcmp(opt, "acdirmin")) data.acdirmin = val; else if (!strcmp(opt, "acdirmax")) data.acdirmax = val; else if (!strcmp(opt, "actimeo")) { data.acregmin = val; data.acregmax = val; data.acdirmin = val; data.acdirmax = val; } else if (!strcmp(opt, "retry")) retry = val; else if (!strcmp(opt, "port")) port = val; else if (!strcmp(opt, "mountport")) mountport = val; else if (!strcmp(opt, "mounthost")) mounthost=xstrndup(opteq+1, strcspn(opteq+1," \t\n\r,")); else if (!strcmp(opt, "mountprog")) mountprog = val; else if (!strcmp(opt, "mountvers")) mountvers = val; else if (!strcmp(opt, "nfsprog")) nfsprog = val; else if (!strcmp(opt, "nfsvers") || !strcmp(opt, "vers")) nfsvers = val; else if (!strcmp(opt, "proto")) { if (!strncmp(opteq+1, "tcp", 3)) tcp = 1; else if (!strncmp(opteq+1, "udp", 3)) tcp = 0; else printf(_("Warning: Unrecognized proto= option.\n")); } else if (!strcmp(opt, "namlen")) { #if NFS_MOUNT_VERSION >= 2 if (nfs_mount_version >= 2) data.namlen = val; else #endif printf(_("Warning: Option namlen is not supported.\n")); } else if (!strcmp(opt, "addr")) { /* ignore */; } else { printf(_("unknown nfs mount parameter: " "%s=%d\n"), opt, val); goto fail; } } else { val = 1; if (!strncmp(opt, "no", 2)) { val = 0; opt += 2; } if (!strcmp(opt, "bg")) bg = val; else if (!strcmp(opt, "fg")) bg = !val; else if (!strcmp(opt, "soft")) soft = val; else if (!strcmp(opt, "hard")) soft = !val; else if (!strcmp(opt, "intr")) intr = val; else if (!strcmp(opt, "posix")) posix = val; else if (!strcmp(opt, "cto")) nocto = !val; else if (!strcmp(opt, "ac")) noac = !val; else if (!strcmp(opt, "tcp")) tcp = val; else if (!strcmp(opt, "udp")) tcp = !val; else if (!strcmp(opt, "lock")) { if (nfs_mount_version >= 3) nolock = !val; else printf(_("Warning: option nolock is not supported.\n")); } else if (!strcmp(opt, "broken_suid")) { broken_suid = val; } else { if (!sloppy) { printf(_("unknown nfs mount option: " "%s%s\n"), val ? "" : "no", opt); goto fail; } } } } proto = (tcp) ? IPPROTO_TCP : IPPROTO_UDP; data.flags = (soft ? NFS_MOUNT_SOFT : 0) | (intr ? NFS_MOUNT_INTR : 0) | (posix ? NFS_MOUNT_POSIX : 0) | (nocto ? NFS_MOUNT_NOCTO : 0) | (noac ? NFS_MOUNT_NOAC : 0); #if NFS_MOUNT_VERSION >= 2 if (nfs_mount_version >= 2) data.flags |= (tcp ? NFS_MOUNT_TCP : 0); #endif #if NFS_MOUNT_VERSION >= 3 if (nfs_mount_version >= 3) data.flags |= (nolock ? NFS_MOUNT_NONLM : 0); #endif #if NFS_MOUNT_VERSION >= 4 if (nfs_mount_version >= 4) data.flags |= (broken_suid ? NFS_MOUNT_BROKEN_SUID : 0); #endif if (nfsvers > MAX_NFSPROT) { fprintf(stderr, "NFSv%d not supported!\n", nfsvers); return 0; } if (mountvers > MAX_NFSPROT) { fprintf(stderr, "NFSv%d not supported!\n", nfsvers); return 0; } if (nfsvers && !mountvers) mountvers = (nfsvers < 3) ? 1 : nfsvers; if (nfsvers && nfsvers < mountvers) mountvers = nfsvers; /* Adjust options if none specified */ if (!data.timeo) data.timeo = tcp ? 70 : 7; #ifdef NFS_MOUNT_DEBUG printf("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n", data.rsize, data.wsize, data.timeo, data.retrans); printf("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n", data.acregmin, data.acregmax, data.acdirmin, data.acdirmax); printf("port = %d, bg = %d, retry = %d, flags = %.8x\n", port, bg, retry, data.flags); printf("mountprog = %d, mountvers = %d, nfsprog = %d, nfsvers = %d\n", mountprog, mountvers, nfsprog, nfsvers); printf("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d\n", (data.flags & NFS_MOUNT_SOFT) != 0, (data.flags & NFS_MOUNT_INTR) != 0, (data.flags & NFS_MOUNT_POSIX) != 0, (data.flags & NFS_MOUNT_NOCTO) != 0, (data.flags & NFS_MOUNT_NOAC) != 0); #if NFS_MOUNT_VERSION >= 2 printf("tcp = %d\n", (data.flags & NFS_MOUNT_TCP) != 0); #endif #endif data.version = nfs_mount_version; *mount_opts = (char *) &data; if (*flags & MS_REMOUNT) return 0; /* * If the previous mount operation on the same host was * backgrounded, and the "bg" for this mount is also set, * give up immediately, to avoid the initial timeout. */ if (bg && !running_bg && prev_bg_host && strcmp(hostname, prev_bg_host) == 0) { if (retry > 0) retval = EX_BG; return retval; } /* create mount deamon client */ /* See if the nfs host = mount host. */ if (mounthost) { if (mounthost[0] >= '0' && mounthost[0] <= '9') { mount_server_addr.sin_family = AF_INET; mount_server_addr.sin_addr.s_addr = inet_addr(hostname); } else { if ((hp = gethostbyname(mounthost)) == NULL) { fprintf(stderr, _("mount: can't get address for %s\n"), mounthost); goto fail; } else { if (hp->h_length > sizeof(struct in_addr)) { fprintf(stderr, _("mount: got bad hp->h_length?\n")); hp->h_length = sizeof(struct in_addr); } mount_server_addr.sin_family = AF_INET; memcpy(&mount_server_addr.sin_addr, hp->h_addr, hp->h_length); } } } /* * The following loop implements the mount retries. On the first * call, "running_bg" is 0. When the mount times out, and the * "bg" option is set, the exit status EX_BG will be returned. * For a backgrounded mount, there will be a second call by the * child process with "running_bg" set to 1. * * The case where the mount point is not present and the "bg" * option is set, is treated as a timeout. This is done to * support nested mounts. * * The "retry" count specified by the user is the number of * minutes to retry before giving up. * * Only the first error message will be displayed. */ retry_timeout.tv_sec = 3; retry_timeout.tv_usec = 0; total_timeout.tv_sec = 20; total_timeout.tv_usec = 0; timeout = time(NULL) + 60 * retry; prevt = 0; t = 30; val = 1; for (;;) { if (bg && stat(node, &statbuf) == -1) { /* no mount point yet - sleep */ if (running_bg) { sleep(val); /* 1, 2, 4, 8, 16, 30, ... */ val *= 2; if (val > 30) val = 30; } } else { /* be careful not to use too many CPU cycles */ if (t - prevt < 30) sleep(30); pm_mnt = get_mountport(&mount_server_addr, mountprog, mountvers, proto, mountport, nfs_mount_version); /* contact the mount daemon via TCP */ mount_server_addr.sin_port = htons(pm_mnt->pm_port); msock = RPC_ANYSOCK; switch (pm_mnt->pm_prot) { case IPPROTO_UDP: mclient = clntudp_create(&mount_server_addr, pm_mnt->pm_prog, pm_mnt->pm_vers, retry_timeout, &msock); if (mclient) break; mount_server_addr.sin_port = htons(pm_mnt->pm_port); msock = RPC_ANYSOCK; case IPPROTO_TCP: mclient = clnttcp_create(&mount_server_addr, pm_mnt->pm_prog, pm_mnt->pm_vers, &msock, 0, 0); break; default: mclient = 0; } if (mclient) { /* try to mount hostname:dirname */ mclient->cl_auth = authunix_create_default(); /* make pointers in xdr_mountres3 NULL so * that xdr_array allocates memory for us */ memset(&status, 0, sizeof(status)); if (pm_mnt->pm_vers == 3) clnt_stat = clnt_call(mclient, MOUNTPROC3_MNT, (xdrproc_t) xdr_dirpath, (caddr_t) &dirname, (xdrproc_t) xdr_mountres3, (caddr_t) &status, total_timeout); else clnt_stat = clnt_call(mclient, MOUNTPROC_MNT, (xdrproc_t) xdr_dirpath, (caddr_t) &dirname, (xdrproc_t) xdr_fhstatus, (caddr_t) &status, total_timeout); if (clnt_stat == RPC_SUCCESS) break; /* we're done */ #if 0 /* errno? who sets errno? */ /* this fragment breaks bg mounting */ if (errno != ECONNREFUSED) { clnt_perror(mclient, "mount"); goto fail; /* don't retry */ } #endif if (!running_bg && prevt == 0) clnt_perror(mclient, "mount"); auth_destroy(mclient->cl_auth); clnt_destroy(mclient); mclient = 0; close(msock); } else { if (!running_bg && prevt == 0) clnt_pcreateerror("mount"); } prevt = t; } if (!bg) goto fail; if (!running_bg) { prev_bg_host = xstrdup(hostname); if (retry > 0) retval = EX_BG; goto fail; } t = time(NULL); if (t >= timeout) goto fail; } nfsvers = (pm_mnt->pm_vers < 2) ? 2 : pm_mnt->pm_vers; if (nfsvers == 2) { if (status.nfsv2.fhs_status != 0) { fprintf(stderr, "mount: %s:%s failed, reason given by server: %s\n", hostname, dirname, nfs_strerror(status.nfsv2.fhs_status)); goto fail; } memcpy(data.root.data, (char *) status.nfsv2.fhstatus_u.fhs_fhandle, NFS_FHSIZE); #if NFS_MOUNT_VERSION >= 4 data.root.size = NFS_FHSIZE; memcpy(data.old_root.data, (char *) status.nfsv2.fhstatus_u.fhs_fhandle, NFS_FHSIZE); #endif } else { #if NFS_MOUNT_VERSION >= 4 fhandle3 *fhandle; if (status.nfsv3.fhs_status != 0) { fprintf(stderr, "mount: %s:%s failed, reason given by server: %s\n", hostname, dirname, nfs_strerror(status.nfsv3.fhs_status)); goto fail; } fhandle = &status.nfsv3.mountres3_u.mountinfo.fhandle; memset(data.old_root.data, 0, NFS_FHSIZE); memset(&data.root, 0, sizeof(data.root)); data.root.size = fhandle->fhandle3_len; memcpy(data.root.data, (char *) fhandle->fhandle3_val, fhandle->fhandle3_len); data.flags |= NFS_MOUNT_VER3; #endif } /* create nfs socket for kernel */ if (tcp) { if (nfs_mount_version < 3) { printf(_("NFS over TCP is not supported.\n")); goto fail; } fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); } else fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); if (fsock < 0) { perror(_("nfs socket")); goto fail; } if (bindresvport(fsock, 0) < 0) { perror(_("nfs bindresvport")); goto fail; } if (port == 0) { server_addr.sin_port = PMAPPORT; port = pmap_getport(&server_addr, nfsprog, nfsvers, tcp ? IPPROTO_TCP : IPPROTO_UDP); #if 1 /* Here we check to see if user is mounting with the * tcp option. If so, and if the portmap returns a * '0' for port (service unavailable), we then exit, * notifying the user, rather than hanging up mount. */ if (port == 0 && tcp == 1) { perror(_("nfs server reported service unavailable")); goto fail; } #endif if (port == 0) port = NFS_PORT; #ifdef NFS_MOUNT_DEBUG else printf(_("used portmapper to find NFS port\n")); #endif } #ifdef NFS_MOUNT_DEBUG printf(_("using port %d for nfs deamon\n"), port); #endif server_addr.sin_port = htons(port); /* * connect() the socket for kernels 1.3.10 and below only, * to avoid problems with multihomed hosts. * --Swen */ if (linux_version_code() <= 66314 && connect(fsock, (struct sockaddr *) &server_addr, sizeof (server_addr)) < 0) { perror(_("nfs connect")); goto fail; } /* prepare data structure for kernel */ data.fd = fsock; memcpy((char *) &data.addr, (char *) &server_addr, sizeof(data.addr)); strncpy(data.hostname, hostname, sizeof(data.hostname)); /* clean up */ auth_destroy(mclient->cl_auth); clnt_destroy(mclient); close(msock); return 0; /* abort */ fail: if (msock != -1) { if (mclient) { auth_destroy(mclient->cl_auth); clnt_destroy(mclient); } close(msock); } if (fsock != -1) close(fsock); return retval; }
int main(int argc, char * argv[]) { int read_value = 0xbeefbeef, write_value = 0xbeefbeef, bomb_value = 0xbeefbeef; int read_set, write_set, bomb_set, set; char * devname; int fd; blkelv_ioctl_arg_t elevator; read_set = write_set = bomb_set = set = 0; for (;;) { int opt; opt = getopt(argc, argv, "r:w:b:hv"); if (opt == -1) break; switch (opt) { case 'r': read_value = atoi(optarg); read_set = set = 1; break; case 'w': write_value = atoi(optarg); write_set = set = 1; break; case 'b': bomb_value = atoi(optarg); bomb_set = set = 1; break; case 'h': usage(), exit(0); case 'v': version(), exit(0); case '?': default: case ':': fprintf(stderr, "parse error\n"); exit(1); } } if (optind >= argc) fprintf(stderr, "missing blockdevice, use -h for help\n"), exit(1); while (optind < argc) { devname = argv[optind++]; fd = open(devname, O_RDONLY|O_NONBLOCK); if (fd < 0) { perror("open"); break; } /* mmj: If we get EINVAL it's not a 2.4 kernel, so warn about that and exit. It should return ENOTTY however, so check for that as well in case it gets corrected in the future */ if (ioctl(fd, BLKELVGET, &elevator) < 0) { int errsv = errno; perror("ioctl get"); if ((errsv == EINVAL || errsv == ENOTTY) && linux_version_code() >= MAKE_VERSION(2,5,58)) { fprintf(stderr, "\nelvtune is only useful on older " "kernels;\nfor 2.6 use IO scheduler " "sysfs tunables instead..\n"); } break; } if (set) { if (read_set) elevator.read_latency = read_value; if (write_set) elevator.write_latency = write_value; if (bomb_set) elevator.max_bomb_segments = bomb_value; if (ioctl(fd, BLKELVSET, &elevator) < 0) { perror("ioctl set"); break; } if (ioctl(fd, BLKELVGET, &elevator) < 0) { perror("ioctl reget"); break; } } printf("\n%s elevator ID\t\t%d\n", devname, elevator.queue_ID); printf("\tread_latency:\t\t%d\n", elevator.read_latency); printf("\twrite_latency:\t\t%d\n", elevator.write_latency); printf("\tmax_bomb_segments:\t%d\n\n", elevator.max_bomb_segments); if (close(fd) < 0) { perror("close"); break; } } return 0; }
int nfsmount(const char *spec, const char *node, int flags, char **extra_opts, int fake, int running_bg) { char hostdir[1024]; char *hostname, *dirname, *old_opts, *mounthost = NULL; char new_opts[1024], cbuf[1024]; static struct nfs_mount_data data; int val; static int doonce = 0; clnt_addr_t mnt_server = { &mounthost, }; clnt_addr_t nfs_server = { &hostname, }; struct sockaddr_in *nfs_saddr = &nfs_server.saddr; struct pmap *mnt_pmap = &mnt_server.pmap, *nfs_pmap = &nfs_server.pmap; struct pmap save_mnt, save_nfs; int fsock = -1; mntres_t mntres; struct stat statbuf; char *s; int bg, retry; int retval = EX_FAIL; time_t t; time_t prevt; time_t timeout; if (strlen(spec) >= sizeof(hostdir)) { nfs_error(_("%s: excessively long host:dir argument"), progname); goto fail; } strcpy(hostdir, spec); if ((s = strchr(hostdir, ':'))) { hostname = hostdir; dirname = s + 1; *s = '\0'; /* Ignore all but first hostname in replicated mounts until they can be fully supported. ([email protected]) */ if ((s = strchr(hostdir, ','))) { *s = '\0'; nfs_error(_("%s: warning: " "multiple hostnames not supported"), progname); } } else { nfs_error(_("%s: directory to mount not in host:dir format"), progname); goto fail; } if (!nfs_gethostbyname(hostname, nfs_saddr)) goto fail; mounthost = hostname; memcpy (&mnt_server.saddr, nfs_saddr, sizeof (mnt_server.saddr)); /* add IP address to mtab options for use when unmounting */ s = inet_ntoa(nfs_saddr->sin_addr); old_opts = *extra_opts; if (!old_opts) old_opts = ""; /* Set default options. * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to * let the kernel decide. * timeo is filled in after we know whether it'll be TCP or UDP. */ memset(&data, 0, sizeof(data)); data.acregmin = 3; data.acregmax = 60; data.acdirmin = 30; data.acdirmax = 60; #if NFS_MOUNT_VERSION >= 2 data.namlen = NAME_MAX; #endif bg = 0; retry = -1; memset(mnt_pmap, 0, sizeof(*mnt_pmap)); mnt_pmap->pm_prog = MOUNTPROG; memset(nfs_pmap, 0, sizeof(*nfs_pmap)); nfs_pmap->pm_prog = NFS_PROGRAM; /* parse options */ new_opts[0] = 0; if (!parse_options(old_opts, &data, &bg, &retry, &mnt_server, &nfs_server, new_opts, sizeof(new_opts))) goto fail; if (!nfsmnt_check_compat(nfs_pmap, mnt_pmap)) goto fail; if (retry == -1) { if (bg) retry = 10000; /* 10000 mins == ~1 week*/ else retry = 2; /* 2 min default on fg mounts */ } #ifdef NFS_MOUNT_DEBUG printf(_("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n"), data.rsize, data.wsize, data.timeo, data.retrans); printf(_("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n"), data.acregmin, data.acregmax, data.acdirmin, data.acdirmax); printf(_("port = %lu, bg = %d, retry = %d, flags = %.8x\n"), nfs_pmap->pm_port, bg, retry, data.flags); printf(_("mountprog = %lu, mountvers = %lu, nfsprog = %lu, nfsvers = %lu\n"), mnt_pmap->pm_prog, mnt_pmap->pm_vers, nfs_pmap->pm_prog, nfs_pmap->pm_vers); printf(_("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d"), (data.flags & NFS_MOUNT_SOFT) != 0, (data.flags & NFS_MOUNT_INTR) != 0, (data.flags & NFS_MOUNT_POSIX) != 0, (data.flags & NFS_MOUNT_NOCTO) != 0, (data.flags & NFS_MOUNT_NOAC) != 0); #if NFS_MOUNT_VERSION >= 2 printf(_(", tcp = %d"), (data.flags & NFS_MOUNT_TCP) != 0); #endif #if NFS_MOUNT_VERSION >= 4 printf(_(", noacl = %d"), (data.flags & NFS_MOUNT_NOACL) != 0); #endif #if NFS_MOUNT_VERSION >= 5 printf(_(", sec = %u"), data.pseudoflavor); printf(_(", readdirplus = %d"), (data.flags & NFS_MOUNT_NORDIRPLUS) != 0); #endif printf("\n"); #endif data.version = nfs_mount_data_version; if (flags & MS_REMOUNT) goto out_ok; /* create mount deamon client */ /* * The following loop implements the mount retries. On the first * call, "running_bg" is 0. When the mount times out, and the * "bg" option is set, the exit status EX_BG will be returned. * For a backgrounded mount, there will be a second call by the * child process with "running_bg" set to 1. * * The case where the mount point is not present and the "bg" * option is set, is treated as a timeout. This is done to * support nested mounts. * * The "retry" count specified by the user is the number of * minutes to retry before giving up. * * Only the first error message will be displayed. */ timeout = time(NULL) + 60 * retry; prevt = 0; t = 30; val = 1; memcpy(&save_nfs, nfs_pmap, sizeof(save_nfs)); memcpy(&save_mnt, mnt_pmap, sizeof(save_mnt)); for (;;) { if (bg && stat(node, &statbuf) == -1) { /* no mount point yet - sleep */ if (running_bg) { sleep(val); /* 1, 2, 4, 8, 16, 30, ... */ val *= 2; if (val > 30) val = 30; } } else { int stat; /* be careful not to use too many CPU cycles */ if (t - prevt < 30) sleep(30); stat = nfs_call_mount(&mnt_server, &nfs_server, &dirname, &mntres); if (stat) break; memcpy(nfs_pmap, &save_nfs, sizeof(*nfs_pmap)); memcpy(mnt_pmap, &save_mnt, sizeof(*mnt_pmap)); prevt = t; } if (!bg) { switch(rpc_createerr.cf_stat){ case RPC_TIMEDOUT: break; case RPC_SYSTEMERROR: if (errno == ETIMEDOUT) break; default: rpc_mount_errors(*nfs_server.hostname, 0, bg); goto fail; } t = time(NULL); if (t >= timeout) { rpc_mount_errors(*nfs_server.hostname, 0, bg); goto fail; } rpc_mount_errors(*nfs_server.hostname, 1, bg); continue; } if (!running_bg) { if (retry > 0) retval = EX_BG; goto fail; } t = time(NULL); if (t >= timeout) { rpc_mount_errors(*nfs_server.hostname, 0, bg); goto fail; } if (doonce++ < 1) rpc_mount_errors(*nfs_server.hostname, 1, bg); } if (mnt_pmap->pm_vers <= 2) { if (mntres.nfsv2.fhs_status != 0) { nfs_error(_("%s: %s:%s failed, reason given by server: %s"), progname, hostname, dirname, nfs_strerror(mntres.nfsv2.fhs_status)); goto fail; } memcpy(data.root.data, (char *) mntres.nfsv2.fhstatus_u.fhs_fhandle, NFS_FHSIZE); #if NFS_MOUNT_VERSION >= 4 data.root.size = NFS_FHSIZE; memcpy(data.old_root.data, (char *) mntres.nfsv2.fhstatus_u.fhs_fhandle, NFS_FHSIZE); #endif } else { #if NFS_MOUNT_VERSION >= 4 mountres3_ok *mountres; fhandle3 *fhandle; int i, n_flavors, *flavor, yum = 0; if (mntres.nfsv3.fhs_status != 0) { nfs_error(_("%s: %s:%s failed, reason given by server: %s"), progname, hostname, dirname, nfs_strerror(mntres.nfsv3.fhs_status)); goto fail; } #if NFS_MOUNT_VERSION >= 5 mountres = &mntres.nfsv3.mountres3_u.mountinfo; n_flavors = mountres->auth_flavors.auth_flavors_len; if (n_flavors <= 0) goto noauth_flavors; flavor = mountres->auth_flavors.auth_flavors_val; for (i = 0; i < n_flavors; ++i) { /* * Per RFC2623, section 2.7, we should prefer the * flavour listed first. * If no flavour requested, use the first simple * flavour that is offered. */ if (! (data.flags & NFS_MOUNT_SECFLAVOUR) && (flavor[i] == AUTH_SYS || flavor[i] == AUTH_NONE)) { data.pseudoflavor = flavor[i]; data.flags |= NFS_MOUNT_SECFLAVOUR; } if (flavor[i] == data.pseudoflavor) yum = 1; #ifdef NFS_MOUNT_DEBUG printf(_("auth flavor %d: %d\n"), i, flavor[i]); #endif } if (!yum) { nfs_error(_("%s: %s:%s failed, security flavor " "not supported"), progname, hostname, dirname); /* server has registered us in rmtab, send umount */ nfs_call_umount(&mnt_server, &dirname); goto fail; } noauth_flavors: #endif fhandle = &mntres.nfsv3.mountres3_u.mountinfo.fhandle; memset(data.old_root.data, 0, NFS_FHSIZE); memset(&data.root, 0, sizeof(data.root)); data.root.size = fhandle->fhandle3_len; memcpy(data.root.data, (char *) fhandle->fhandle3_val, fhandle->fhandle3_len); data.flags |= NFS_MOUNT_VER3; #endif } if (nfs_mount_data_version == 1) { /* create nfs socket for kernel */ if (nfs_pmap->pm_prot == IPPROTO_TCP) fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); else fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); if (fsock < 0) { perror(_("nfs socket")); goto fail; } if (bindresvport(fsock, 0) < 0) { perror(_("nfs bindresvport")); goto fail; } } #ifdef NFS_MOUNT_DEBUG printf(_("using port %lu for nfs deamon\n"), nfs_pmap->pm_port); #endif nfs_saddr->sin_port = htons(nfs_pmap->pm_port); /* * connect() the socket for kernels 1.3.10 and below only, * to avoid problems with multihomed hosts. * --Swen */ if (linux_version_code() <= MAKE_VERSION(1, 3, 10) && fsock != -1 && connect(fsock, (struct sockaddr *) nfs_saddr, sizeof (*nfs_saddr)) < 0) { perror(_("nfs connect")); goto fail; } #if NFS_MOUNT_VERSION >= 2 if (nfs_pmap->pm_prot == IPPROTO_TCP) data.flags |= NFS_MOUNT_TCP; else data.flags &= ~NFS_MOUNT_TCP; #endif /* prepare data structure for kernel */ data.fd = fsock; memcpy((char *) &data.addr, (char *) nfs_saddr, sizeof(data.addr)); strncpy(data.hostname, hostname, sizeof(data.hostname)); out_ok: /* Ensure we have enough padding for the following strcat()s */ if (strlen(new_opts) + strlen(s) + 30 >= sizeof(new_opts)) { nfs_error(_("%s: excessively long option argument"), progname); goto fail; } snprintf(cbuf, sizeof(cbuf)-1, "addr=%s", s); strcat(new_opts, cbuf); *extra_opts = xstrdup(new_opts); if (!fake && !(data.flags & NFS_MOUNT_NONLM)) { if (!start_statd()) { nfs_error(_("%s: rpc.statd is not running but is " "required for remote locking.\n" " Either use '-o nolock' to keep " "locks local, or start statd."), progname); goto fail; } } if (!fake) { if (mount(spec, node, "nfs", flags & ~(MS_USER|MS_USERS), &data)) { mount_error(spec, node, errno); goto fail; } } return EX_SUCCESS; /* abort */ fail: if (fsock != -1) close(fsock); return retval; }