diff options
Diffstat (limited to 'fs/cifs/connect.c')
| -rw-r--r-- | fs/cifs/connect.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d8eb6a74b211..24fa08d261fb 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -70,6 +70,7 @@ enum { Opt_forcegid, Opt_noforcegid, Opt_noblocksend, Opt_noautotune, Opt_hard, Opt_soft, Opt_perm, Opt_noperm, + Opt_mapposix, Opt_nomapposix, Opt_mapchars, Opt_nomapchars, Opt_sfu, Opt_nosfu, Opt_nodfs, Opt_posixpaths, Opt_noposixpaths, Opt_nounix, @@ -124,8 +125,10 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_soft, "soft" }, { Opt_perm, "perm" }, { Opt_noperm, "noperm" }, - { Opt_mapchars, "mapchars" }, + { Opt_mapchars, "mapchars" }, /* SFU style */ { Opt_nomapchars, "nomapchars" }, + { Opt_mapposix, "mapposix" }, /* SFM style */ + { Opt_nomapposix, "nomapposix" }, { Opt_sfu, "sfu" }, { Opt_nosfu, "nosfu" }, { Opt_nodfs, "nodfs" }, @@ -1231,6 +1234,14 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, vol->linux_uid = current_uid(); vol->linux_gid = current_gid(); + /* + * default to SFM style remapping of seven reserved characters + * unless user overrides it or we negotiate CIFS POSIX where + * it is unnecessary. Can not simultaneously use more than one mapping + * since then readdir could list files that open could not open + */ + vol->remap = true; + /* default to only allowing write access to owner of the mount */ vol->dir_mode = vol->file_mode = S_IRUGO | S_IXUGO | S_IWUSR; @@ -1338,10 +1349,18 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, vol->noperm = 1; break; case Opt_mapchars: - vol->remap = 1; + vol->sfu_remap = true; + vol->remap = false; /* disable SFM mapping */ break; case Opt_nomapchars: - vol->remap = 0; + vol->sfu_remap = false; + break; + case Opt_mapposix: + vol->remap = true; + vol->sfu_remap = false; /* disable SFU mapping */ + break; + case Opt_nomapposix: + vol->remap = false; break; case Opt_sfu: vol->sfu_emul = 1; @@ -3197,6 +3216,8 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, if (pvolume_info->server_ino) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM; if (pvolume_info->remap) + cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SFM_CHR; + if (pvolume_info->sfu_remap) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR; if (pvolume_info->no_xattr) cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR; @@ -3340,8 +3361,7 @@ expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses, ref_path = check_prefix ? full_path + 1 : volume_info->UNC + 1; rc = get_dfs_path(xid, ses, ref_path, cifs_sb->local_nls, - &num_referrals, &referrals, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + &num_referrals, &referrals, cifs_remap(cifs_sb)); if (!rc && num_referrals > 0) { char *fake_devname = NULL; |