diff options
| -rw-r--r-- | fs/cifs/cifsglob.h | 7 | ||||
| -rw-r--r-- | fs/cifs/connect.c | 12 | ||||
| -rw-r--r-- | fs/cifs/sess.c | 10 | ||||
| -rw-r--r-- | include/uapi/linux/cifs/cifs_mount.h | 25 |
4 files changed, 38 insertions, 16 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index ec6c3fbb29eb..633bbc5e8801 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -28,6 +28,7 @@ #include "cifsacl.h" #include <crypto/internal/hash.h> #include <linux/scatterlist.h> +#include <uapi/linux/cifs/cifs_mount.h> #ifdef CONFIG_CIFS_SMB2 #include "smb2pdu.h" #endif @@ -41,12 +42,8 @@ #define MAX_SES_INFO 2 #define MAX_TCON_INFO 4 -#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1) +#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + CIFS_MAX_SHARE_LEN + 1) #define MAX_SERVER_SIZE 15 -#define MAX_SHARE_SIZE 80 -#define CIFS_MAX_DOMAINNAME_LEN 256 /* max domain name length */ -#define MAX_USERNAME_SIZE 256 /* reasonable maximum for current servers */ -#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */ #define CIFS_MIN_RCV_POOL 4 diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 37950c65453c..b1bab99be83b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1577,8 +1577,8 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (strnlen(string, MAX_USERNAME_SIZE) > - MAX_USERNAME_SIZE) { + if (strnlen(string, CIFS_MAX_USERNAME_LEN) > + CIFS_MAX_USERNAME_LEN) { printk(KERN_WARNING "CIFS: username too long\n"); goto cifs_parse_mount_err; } @@ -2223,13 +2223,13 @@ static int match_session(struct cifs_ses *ses, struct smb_vol *vol) /* anything else takes username/password */ if (strncmp(ses->user_name, vol->username ? vol->username : "", - MAX_USERNAME_SIZE)) + CIFS_MAX_USERNAME_LEN)) return 0; if (strlen(vol->username) != 0 && ses->password != NULL && strncmp(ses->password, vol->password ? vol->password : "", - MAX_PASSWORD_SIZE)) + CIFS_MAX_PASSWORD_LEN)) return 0; } return 1; @@ -2354,7 +2354,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses) } len = delim - payload; - if (len > MAX_USERNAME_SIZE || len <= 0) { + if (len > CIFS_MAX_USERNAME_LEN || len <= 0) { cifs_dbg(FYI, "Bad value from username search (len=%zd)\n", len); rc = -EINVAL; @@ -2371,7 +2371,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses) cifs_dbg(FYI, "%s: username=%s\n", __func__, vol->username); len = key->datalen - (len + 1); - if (len > MAX_PASSWORD_SIZE || len <= 0) { + if (len > CIFS_MAX_PASSWORD_LEN || len <= 0) { cifs_dbg(FYI, "Bad len for password search (len=%zd)\n", len); rc = -EINVAL; kfree(vol->username); diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 08dd37bb23aa..a0a62db0f575 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -226,7 +226,7 @@ static void unicode_ssetup_strings(char **pbcc_area, struct cifs_ses *ses, *(bcc_ptr+1) = 0; } else { bytes_ret = cifs_strtoUTF16((__le16 *) bcc_ptr, ses->user_name, - MAX_USERNAME_SIZE, nls_cp); + CIFS_MAX_USERNAME_LEN, nls_cp); } bcc_ptr += 2 * bytes_ret; bcc_ptr += 2; /* account for null termination */ @@ -246,8 +246,8 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifs_ses *ses, /* BB what about null user mounts - check that we do this BB */ /* copy user */ if (ses->user_name != NULL) { - strncpy(bcc_ptr, ses->user_name, MAX_USERNAME_SIZE); - bcc_ptr += strnlen(ses->user_name, MAX_USERNAME_SIZE); + strncpy(bcc_ptr, ses->user_name, CIFS_MAX_USERNAME_LEN); + bcc_ptr += strnlen(ses->user_name, CIFS_MAX_USERNAME_LEN); } /* else null user mount */ *bcc_ptr = 0; @@ -501,7 +501,7 @@ int build_ntlmssp_auth_blob(unsigned char *pbuffer, } else { int len; len = cifs_strtoUTF16((__le16 *)tmp, ses->domainName, - MAX_USERNAME_SIZE, nls_cp); + CIFS_MAX_USERNAME_LEN, nls_cp); len *= 2; /* unicode is 2 bytes each */ sec_blob->DomainName.BufferOffset = cpu_to_le32(tmp - pbuffer); sec_blob->DomainName.Length = cpu_to_le16(len); @@ -517,7 +517,7 @@ int build_ntlmssp_auth_blob(unsigned char *pbuffer, } else { int len; len = cifs_strtoUTF16((__le16 *)tmp, ses->user_name, - MAX_USERNAME_SIZE, nls_cp); + CIFS_MAX_USERNAME_LEN, nls_cp); len *= 2; /* unicode is 2 bytes each */ sec_blob->UserName.BufferOffset = cpu_to_le32(tmp - pbuffer); sec_blob->UserName.Length = cpu_to_le16(len); diff --git a/include/uapi/linux/cifs/cifs_mount.h b/include/uapi/linux/cifs/cifs_mount.h new file mode 100644 index 000000000000..19063fef6219 --- /dev/null +++ b/include/uapi/linux/cifs/cifs_mount.h @@ -0,0 +1,25 @@ +/* + * include/uapi/linux/cifs/cifs_mount.h + * + * Author(s): Scott Lovenberg (scott.lovenberg@gmail.com) + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU Lesser General Public License for more details. + */ +#ifndef _CIFS_MOUNT_H +#define _CIFS_MOUNT_H + +/* Max string lengths for cifs mounting options. */ +#define CIFS_MAX_DOMAINNAME_LEN 256 /* max fully qualified domain name */ +#define CIFS_MAX_USERNAME_LEN 256 /* reasonable max for current servers */ +#define CIFS_MAX_PASSWORD_LEN 512 /* Windows max seems to be 256 wide chars */ +#define CIFS_MAX_SHARE_LEN 80 + +#endif /* _CIFS_MOUNT_H */ |