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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-06-18 01:13:00 (GMT) |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-06-19 01:13:44 (GMT) |
commit | 1f84603c0940d5bed17f7e4d2e0b2a4b8b8f1b81 (patch) | |
tree | 143956f878290e85de7c9130f465e862f587ee53 /fs/nfs/super.c | |
parent | 301933a0acfdec837fd8b4884093b3f0fff01d8a (diff) | |
parent | 4bf259e3ae5015e73282ba66716c4a917e1264ac (diff) | |
download | linux-fsl-qoriq-1f84603c0940d5bed17f7e4d2e0b2a4b8b8f1b81.tar.xz |
Merge branch 'devel-for-2.6.31' into for-2.6.31
Conflicts:
fs/nfs/client.c
fs/nfs/super.c
Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r-- | fs/nfs/super.c | 288 |
1 files changed, 168 insertions, 120 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 6063054..3d46052 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -140,22 +140,22 @@ static const match_table_t nfs_mount_option_tokens = { { Opt_fscache_uniq, "fsc=%s" }, { Opt_nofscache, "nofsc" }, - { Opt_port, "port=%u" }, - { Opt_rsize, "rsize=%u" }, - { Opt_wsize, "wsize=%u" }, - { Opt_bsize, "bsize=%u" }, - { Opt_timeo, "timeo=%u" }, - { Opt_retrans, "retrans=%u" }, - { Opt_acregmin, "acregmin=%u" }, - { Opt_acregmax, "acregmax=%u" }, - { Opt_acdirmin, "acdirmin=%u" }, - { Opt_acdirmax, "acdirmax=%u" }, - { Opt_actimeo, "actimeo=%u" }, - { Opt_namelen, "namlen=%u" }, - { Opt_mountport, "mountport=%u" }, - { Opt_mountvers, "mountvers=%u" }, - { Opt_nfsvers, "nfsvers=%u" }, - { Opt_nfsvers, "vers=%u" }, + { Opt_port, "port=%s" }, + { Opt_rsize, "rsize=%s" }, + { Opt_wsize, "wsize=%s" }, + { Opt_bsize, "bsize=%s" }, + { Opt_timeo, "timeo=%s" }, + { Opt_retrans, "retrans=%s" }, + { Opt_acregmin, "acregmin=%s" }, + { Opt_acregmax, "acregmax=%s" }, + { Opt_acdirmin, "acdirmin=%s" }, + { Opt_acdirmax, "acdirmax=%s" }, + { Opt_actimeo, "actimeo=%s" }, + { Opt_namelen, "namlen=%s" }, + { Opt_mountport, "mountport=%s" }, + { Opt_mountvers, "mountvers=%s" }, + { Opt_nfsvers, "nfsvers=%s" }, + { Opt_nfsvers, "vers=%s" }, { Opt_minorversion, "minorversion=%u" }, { Opt_sec, "sec=%s" }, @@ -516,7 +516,6 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss, const char *nostr; } nfs_info[] = { { NFS_MOUNT_SOFT, ",soft", ",hard" }, - { NFS_MOUNT_INTR, ",intr", ",nointr" }, { NFS_MOUNT_POSIX, ",posix", "" }, { NFS_MOUNT_NOCTO, ",nocto", "" }, { NFS_MOUNT_NOAC, ",noac", "" }, @@ -945,11 +944,6 @@ static int nfs_parse_security_flavors(char *value, return 1; } -static void nfs_parse_invalid_value(const char *option) -{ - dfprintk(MOUNT, "NFS: bad value specified for %s option\n", option); -} - /* * Error-check and convert a string of mount options from user space into * a data structure. The whole mount string is processed; bad options are @@ -960,7 +954,7 @@ static int nfs_parse_mount_options(char *raw, struct nfs_parsed_mount_data *mnt) { char *p, *string, *secdata; - int rc, sloppy = 0, errors = 0; + int rc, sloppy = 0, invalid_option = 0; if (!raw) { dfprintk(MOUNT, "NFS: mount options string was NULL.\n"); @@ -984,7 +978,9 @@ static int nfs_parse_mount_options(char *raw, while ((p = strsep(&raw, ",")) != NULL) { substring_t args[MAX_OPT_ARGS]; - int option, token; + unsigned long option; + int int_option; + int token; if (!*p) continue; @@ -1093,114 +1089,156 @@ static int nfs_parse_mount_options(char *raw, * options that take numeric values */ case Opt_port: - if (match_int(args, &option) || - option < 0 || option > USHORT_MAX) { - errors++; - nfs_parse_invalid_value("port"); - } else - mnt->nfs_server.port = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0 || option > USHORT_MAX) + goto out_invalid_value; + mnt->nfs_server.port = option; break; case Opt_rsize: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("rsize"); - } else - mnt->rsize = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->rsize = option; break; case Opt_wsize: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("wsize"); - } else - mnt->wsize = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->wsize = option; break; case Opt_bsize: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("bsize"); - } else - mnt->bsize = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->bsize = option; break; case Opt_timeo: - if (match_int(args, &option) || option <= 0) { - errors++; - nfs_parse_invalid_value("timeo"); - } else - mnt->timeo = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0 || option == 0) + goto out_invalid_value; + mnt->timeo = option; break; case Opt_retrans: - if (match_int(args, &option) || option <= 0) { - errors++; - nfs_parse_invalid_value("retrans"); - } else - mnt->retrans = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0 || option == 0) + goto out_invalid_value; + mnt->retrans = option; break; case Opt_acregmin: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("acregmin"); - } else - mnt->acregmin = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->acregmin = option; break; case Opt_acregmax: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("acregmax"); - } else - mnt->acregmax = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->acregmax = option; break; case Opt_acdirmin: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("acdirmin"); - } else - mnt->acdirmin = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->acdirmin = option; break; case Opt_acdirmax: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("acdirmax"); - } else - mnt->acdirmax = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->acdirmax = option; break; case Opt_actimeo: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("actimeo"); - } else - mnt->acregmin = mnt->acregmax = - mnt->acdirmin = mnt->acdirmax = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->acregmin = mnt->acregmax = + mnt->acdirmin = mnt->acdirmax = option; break; case Opt_namelen: - if (match_int(args, &option) || option < 0) { - errors++; - nfs_parse_invalid_value("namlen"); - } else - mnt->namlen = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; + mnt->namlen = option; break; case Opt_mountport: - if (match_int(args, &option) || - option < 0 || option > USHORT_MAX) { - errors++; - nfs_parse_invalid_value("mountport"); - } else - mnt->mount_server.port = option; + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0 || option > USHORT_MAX) + goto out_invalid_value; + mnt->mount_server.port = option; break; case Opt_mountvers: - if (match_int(args, &option) || + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0 || option < NFS_MNT_VERSION || - option > NFS_MNT3_VERSION) { - errors++; - nfs_parse_invalid_value("mountvers"); - } else - mnt->mount_server.version = option; + option > NFS_MNT3_VERSION) + goto out_invalid_value; + mnt->mount_server.version = option; break; case Opt_nfsvers: - if (match_int(args, &option)) { - errors++; - nfs_parse_invalid_value("nfsvers"); - break; - } + string = match_strdup(args); + if (string == NULL) + goto out_nomem; + rc = strict_strtoul(string, 10, &option); + kfree(string); + if (rc != 0) + goto out_invalid_value; switch (option) { case NFS2_VERSION: mnt->flags &= ~NFS_MOUNT_VER3; @@ -1209,16 +1247,15 @@ static int nfs_parse_mount_options(char *raw, mnt->flags |= NFS_MOUNT_VER3; break; default: - errors++; - nfs_parse_invalid_value("nfsvers"); + goto out_invalid_value; } break; case Opt_minorversion: - if (match_int(args, &option)) + if (match_int(args, &int_option)) return 0; - if (option < 0 || option > NFS4_MAX_MINOR_VERSION) + if (int_option < 0 || int_option > NFS4_MAX_MINOR_VERSION) return 0; - mnt->minorversion = option; + mnt->minorversion = int_option; break; /* @@ -1231,9 +1268,9 @@ static int nfs_parse_mount_options(char *raw, rc = nfs_parse_security_flavors(string, mnt); kfree(string); if (!rc) { - errors++; dfprintk(MOUNT, "NFS: unrecognized " "security flavor\n"); + return 0; } break; case Opt_proto: @@ -1247,23 +1284,25 @@ static int nfs_parse_mount_options(char *raw, case Opt_xprt_udp: mnt->flags &= ~NFS_MOUNT_TCP; mnt->nfs_server.protocol = XPRT_TRANSPORT_UDP; + kfree(string); break; case Opt_xprt_tcp: mnt->flags |= NFS_MOUNT_TCP; mnt->nfs_server.protocol = XPRT_TRANSPORT_TCP; + kfree(string); break; case Opt_xprt_rdma: /* vector side protocols to TCP */ mnt->flags |= NFS_MOUNT_TCP; mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA; xprt_load_transport(string); + kfree(string); break; default: - errors++; dfprintk(MOUNT, "NFS: unrecognized " "transport protocol\n"); + return 0; } - kfree(string); break; case Opt_mountproto: string = match_strdup(args); @@ -1282,9 +1321,9 @@ static int nfs_parse_mount_options(char *raw, break; case Opt_xprt_rdma: /* not used for side protocols */ default: - errors++; dfprintk(MOUNT, "NFS: unrecognized " "transport protocol\n"); + return 0; } break; case Opt_addr: @@ -1340,9 +1379,9 @@ static int nfs_parse_mount_options(char *raw, mnt->flags |= NFS_MOUNT_LOOKUP_CACHE_NONEG|NFS_MOUNT_LOOKUP_CACHE_NONE; break; default: - errors++; dfprintk(MOUNT, "NFS: invalid " "lookupcache argument\n"); + return 0; }; break; @@ -1360,20 +1399,20 @@ static int nfs_parse_mount_options(char *raw, break; default: - errors++; + invalid_option = 1; dfprintk(MOUNT, "NFS: unrecognized mount option " "'%s'\n", p); } } - if (errors > 0) { - dfprintk(MOUNT, "NFS: parsing encountered %d error%s\n", - errors, (errors == 1 ? "" : "s")); - if (!sloppy) - return 0; - } + if (!sloppy && invalid_option) + return 0; + return 1; +out_invalid_value: + printk(KERN_INFO "NFS: bad mount option value specified: %s \n", p); + return 0; out_nomem: printk(KERN_INFO "NFS: not enough memory to parse option\n"); return 0; @@ -1390,6 +1429,7 @@ out_security_failure: static int nfs_try_mount(struct nfs_parsed_mount_data *args, struct nfs_fh *root_fh) { + unsigned int auth_flavor_len = 0; struct nfs_mount_request request = { .sap = (struct sockaddr *) &args->mount_server.address, @@ -1397,6 +1437,7 @@ static int nfs_try_mount(struct nfs_parsed_mount_data *args, .protocol = args->mount_server.protocol, .fh = root_fh, .noresvport = args->flags & NFS_MOUNT_NORESVPORT, + .auth_flav_len = &auth_flavor_len, }; int status; @@ -2249,6 +2290,11 @@ static void nfs4_fill_super(struct super_block *sb) nfs_initialise_sb(sb); } +static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *args) +{ + args->flags &= ~(NFS_MOUNT_NONLM|NFS_MOUNT_NOACL|NFS_MOUNT_VER3); +} + /* * Validate NFSv4 mount options */ @@ -2346,6 +2392,8 @@ static int nfs4_validate_mount_data(void *options, nfs_validate_transport_protocol(args); + nfs4_validate_mount_flags(args); + if (args->auth_flavor_len > 1) goto out_inval_auth; |