diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/internal.h | 2 | ||||
| -rw-r--r-- | fs/nfs/super.c | 34 |
2 files changed, 11 insertions, 25 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7f80f036ebd9..b1e577302518 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -123,7 +123,7 @@ struct nfs_parsed_mount_data { unsigned short protocol; } nfs_server; - struct security_mnt_opts lsm_opts; + void *lsm_opts; struct net *net; }; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 7c942462d8c6..22ce3c8a2f46 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -929,7 +929,7 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void) data->minorversion = 0; data->need_mount = true; data->net = current->nsproxy->net_ns; - security_init_mnt_opts(&data->lsm_opts); + data->lsm_opts = NULL; } return data; } @@ -1206,7 +1206,7 @@ static int nfs_get_option_ul_bound(substring_t args[], unsigned long *option, static int nfs_parse_mount_options(char *raw, struct nfs_parsed_mount_data *mnt) { - char *p, *string, *secdata; + char *p, *string; int rc, sloppy = 0, invalid_option = 0; unsigned short protofamily = AF_UNSPEC; unsigned short mountfamily = AF_UNSPEC; @@ -1217,20 +1217,10 @@ static int nfs_parse_mount_options(char *raw, } dfprintk(MOUNT, "NFS: nfs mount opts='%s'\n", raw); - secdata = alloc_secdata(); - if (!secdata) - goto out_nomem; - - rc = security_sb_copy_data(raw, secdata); + rc = security_sb_eat_lsm_opts(raw, &mnt->lsm_opts); if (rc) goto out_security_failure; - rc = security_sb_parse_opts_str(secdata, &mnt->lsm_opts); - if (rc) - goto out_security_failure; - - free_secdata(secdata); - while ((p = strsep(&raw, ",")) != NULL) { substring_t args[MAX_OPT_ARGS]; unsigned long option; @@ -1682,7 +1672,6 @@ out_nomem: printk(KERN_INFO "NFS: not enough memory to parse option\n"); return 0; out_security_failure: - free_secdata(secdata); printk(KERN_INFO "NFS: security options invalid: %d\n", rc); return 0; } @@ -2081,14 +2070,9 @@ static int nfs23_validate_mount_data(void *options, if (data->context[0]){ #ifdef CONFIG_SECURITY_SELINUX int rc; - char *opts_str = kmalloc(sizeof(data->context) + 8, GFP_KERNEL); - if (!opts_str) - return -ENOMEM; - strcpy(opts_str, "context="); data->context[NFS_MAX_CONTEXT_LEN] = '\0'; - strcat(opts_str, &data->context[0]); - rc = security_sb_parse_opts_str(opts_str, &args->lsm_opts); - kfree(opts_str); + rc = security_add_mnt_opt("context", data->context, + strlen(data->context), &args->lsm_opts); if (rc) return rc; #else @@ -2271,7 +2255,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) options->version <= 6)))) return 0; - data = kzalloc(sizeof(*data), GFP_KERNEL); + data = nfs_alloc_parsed_mount_data(); if (data == NULL) return -ENOMEM; @@ -2310,8 +2294,10 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) /* compare new mount options with old ones */ error = nfs_compare_remount_data(nfss, data); + if (!error) + error = security_sb_remount(sb, data->lsm_opts); out: - kfree(data); + nfs_free_parsed_mount_data(data); return error; } EXPORT_SYMBOL_GPL(nfs_remount); @@ -2548,7 +2534,7 @@ int nfs_set_sb_security(struct super_block *s, struct dentry *mntroot, if (NFS_SB(s)->caps & NFS_CAP_SECURITY_LABEL) kflags |= SECURITY_LSM_NATIVE_LABELS; - error = security_sb_set_mnt_opts(s, &mount_info->parsed->lsm_opts, + error = security_sb_set_mnt_opts(s, mount_info->parsed->lsm_opts, kflags, &kflags_out); if (error) goto err; |