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Diffstat (limited to 'fs/cifs/connect.c')
-rw-r--r--fs/cifs/connect.c100
1 files changed, 63 insertions, 37 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 12b3da39733b..21b3a291c327 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -97,7 +97,7 @@ enum {
Opt_user, Opt_pass, Opt_ip,
Opt_unc, Opt_domain,
Opt_srcaddr, Opt_prefixpath,
- Opt_iocharset, Opt_sockopt,
+ Opt_iocharset,
Opt_netbiosname, Opt_servern,
Opt_ver, Opt_vers, Opt_sec, Opt_cache,
@@ -202,7 +202,6 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_srcaddr, "srcaddr=%s" },
{ Opt_prefixpath, "prefixpath=%s" },
{ Opt_iocharset, "iocharset=%s" },
- { Opt_sockopt, "sockopt=%s" },
{ Opt_netbiosname, "netbiosname=%s" },
{ Opt_servern, "servern=%s" },
{ Opt_ver, "ver=%s" },
@@ -987,6 +986,41 @@ 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)
@@ -996,7 +1030,7 @@ static int cifs_parse_security_flavors(char *value,
switch (match_token(value, cifs_secflavor_tokens, args)) {
case Opt_sec_krb5:
- vol->secFlg |= CIFSSEC_MAY_KRB5;
+ vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_SIGN;
break;
case Opt_sec_krb5i:
vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MUST_SIGN;
@@ -1424,47 +1458,42 @@ 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:
@@ -1546,14 +1575,24 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
}
break;
case Opt_blank_pass:
- vol->password = NULL;
- break;
- case Opt_pass:
/* passwords have to be handled differently
* to allow the character used for deliminator
* to be passed within them
*/
+ /*
+ * Check if this is a case where the password
+ * starts with a delimiter
+ */
+ tmp_end = strchr(data, '=');
+ tmp_end++;
+ if (!(tmp_end < end && tmp_end[1] == delim)) {
+ /* No it is not. Set the password to NULL */
+ vol->password = NULL;
+ break;
+ }
+ /* Yes it is. Drop down to Opt_pass below.*/
+ case Opt_pass:
/* Obtain the value string */
value = strchr(data, '=');
value++;
@@ -1722,19 +1761,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
*/
cFYI(1, "iocharset set to %s", string);
break;
- case Opt_sockopt:
- string = match_strdup(args);
- if (string == NULL)
- goto out_nomem;
-
- if (strnicmp(string, "TCP_NODELAY", 11) == 0) {
- printk(KERN_WARNING "CIFS: the "
- "sockopt=TCP_NODELAY option has been "
- "deprecated and will be removed "
- "in 3.9\n");
- vol->sockopt_tcp_nodelay = 1;
- }
- break;
case Opt_netbiosname:
string = match_strdup(args);
if (string == NULL)
@@ -2241,7 +2267,7 @@ static int match_session(struct cifs_ses *ses, struct smb_vol *vol)
{
switch (ses->server->secType) {
case Kerberos:
- if (vol->cred_uid != ses->cred_uid)
+ if (!uid_eq(vol->cred_uid, ses->cred_uid))
return 0;
break;
default:
@@ -2713,7 +2739,7 @@ compare_mount_options(struct super_block *sb, struct cifs_mnt_data *mnt_data)
if (new->rsize && new->rsize < old->rsize)
return 0;
- if (old->mnt_uid != new->mnt_uid || old->mnt_gid != new->mnt_gid)
+ if (!uid_eq(old->mnt_uid, new->mnt_uid) || !gid_eq(old->mnt_gid, new->mnt_gid))
return 0;
if (old->mnt_file_mode != new->mnt_file_mode ||
@@ -3919,7 +3945,7 @@ cifs_set_vol_auth(struct smb_vol *vol, struct cifs_ses *ses)
}
static struct cifs_tcon *
-cifs_construct_tcon(struct cifs_sb_info *cifs_sb, uid_t fsuid)
+cifs_construct_tcon(struct cifs_sb_info *cifs_sb, kuid_t fsuid)
{
int rc;
struct cifs_tcon *master_tcon = cifs_sb_master_tcon(cifs_sb);
@@ -3989,7 +4015,7 @@ cifs_sb_tcon_pending_wait(void *unused)
/* find and return a tlink with given uid */
static struct tcon_link *
-tlink_rb_search(struct rb_root *root, uid_t uid)
+tlink_rb_search(struct rb_root *root, kuid_t uid)
{
struct rb_node *node = root->rb_node;
struct tcon_link *tlink;
@@ -3997,9 +4023,9 @@ tlink_rb_search(struct rb_root *root, uid_t uid)
while (node) {
tlink = rb_entry(node, struct tcon_link, tl_rbnode);
- if (tlink->tl_uid > uid)
+ if (uid_gt(tlink->tl_uid, uid))
node = node->rb_left;
- else if (tlink->tl_uid < uid)
+ else if (uid_lt(tlink->tl_uid, uid))
node = node->rb_right;
else
return tlink;
@@ -4018,7 +4044,7 @@ tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink)
tlink = rb_entry(*new, struct tcon_link, tl_rbnode);
parent = *new;
- if (tlink->tl_uid > new_tlink->tl_uid)
+ if (uid_gt(tlink->tl_uid, new_tlink->tl_uid))
new = &((*new)->rb_left);
else
new = &((*new)->rb_right);
@@ -4048,7 +4074,7 @@ struct tcon_link *
cifs_sb_tlink(struct cifs_sb_info *cifs_sb)
{
int ret;
- uid_t fsuid = current_fsuid();
+ kuid_t fsuid = current_fsuid();
struct tcon_link *tlink, *newtlink;
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-12 20:36:18 +0300