diff options
| -rw-r--r-- | fs/cifs/cifsglob.h | 10 | ||||
| -rw-r--r-- | fs/cifs/connect.c | 50 |
2 files changed, 45 insertions, 15 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 04aa74e5b34..e308e8bd077 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -399,11 +399,11 @@ struct smb_vol { char *iocharset; /* local code page for mapping to and from Unicode */ char source_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* clnt nb name */ char target_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* srvr nb name */ - uid_t cred_uid; - uid_t linux_uid; - gid_t linux_gid; - uid_t backupuid; - gid_t backupgid; + kuid_t cred_uid; + kuid_t linux_uid; + kgid_t linux_gid; + kuid_t backupuid; + kgid_t backupgid; umode_t file_mode; umode_t dir_mode; unsigned secFlg; diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 54116945922..9bd13a75602 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -987,6 +987,41 @@ static int get_option_ul(substring_t args[], unsigned long *option) return rc; } +static int get_option_uid(substring_t args[], kuid_t *result) +{ + unsigned long value; + kuid_t uid; + int rc; + + rc = get_option_ul(args, &value); + if (rc) + return rc; + + uid = make_kuid(current_user_ns(), value); + if (!uid_valid(uid)) + return -EINVAL; + + *result = uid; + return 0; +} + +static int get_option_gid(substring_t args[], kgid_t *result) +{ + unsigned long value; + kgid_t gid; + int rc; + + rc = get_option_ul(args, &value); + if (rc) + return rc; + + gid = make_kgid(current_user_ns(), value); + if (!gid_valid(gid)) + return -EINVAL; + + *result = gid; + return 0; +} static int cifs_parse_security_flavors(char *value, struct smb_vol *vol) @@ -1424,47 +1459,42 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, /* Numeric Values */ case Opt_backupuid: - if (get_option_ul(args, &option)) { + if (get_option_uid(args, &vol->backupuid)) { cERROR(1, "%s: Invalid backupuid value", __func__); goto cifs_parse_mount_err; } - vol->backupuid = option; vol->backupuid_specified = true; break; case Opt_backupgid: - if (get_option_ul(args, &option)) { + if (get_option_gid(args, &vol->backupgid)) { cERROR(1, "%s: Invalid backupgid value", __func__); goto cifs_parse_mount_err; } - vol->backupgid = option; vol->backupgid_specified = true; break; case Opt_uid: - if (get_option_ul(args, &option)) { + if (get_option_uid(args, &vol->linux_uid)) { cERROR(1, "%s: Invalid uid value", __func__); goto cifs_parse_mount_err; } - vol->linux_uid = option; uid_specified = true; break; case Opt_cruid: - if (get_option_ul(args, &option)) { + if (get_option_uid(args, &vol->cred_uid)) { cERROR(1, "%s: Invalid cruid value", __func__); goto cifs_parse_mount_err; } - vol->cred_uid = option; break; case Opt_gid: - if (get_option_ul(args, &option)) { + if (get_option_gid(args, &vol->linux_gid)) { cERROR(1, "%s: Invalid gid value", __func__); goto cifs_parse_mount_err; } - vol->linux_gid = option; gid_specified = true; break; case Opt_file_mode: |