diff options
| -rw-r--r-- | fs/cifs/cifsglob.h | 2 | ||||
| -rw-r--r-- | fs/cifs/cifsproto.h | 2 | ||||
| -rw-r--r-- | fs/cifs/misc.c | 2 | ||||
| -rw-r--r-- | fs/cifs/netmisc.c | 2 | ||||
| -rw-r--r-- | fs/cifs/readdir.c | 6 | ||||
| -rw-r--r-- | fs/cifs/smb2misc.c | 14 | ||||
| -rw-r--r-- | fs/cifs/smb2proto.h | 2 |
7 files changed, 16 insertions, 14 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 0e2b145aba46..d71585025ef6 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -372,7 +372,7 @@ struct smb_version_operations { int (*close_dir)(const unsigned int, struct cifs_tcon *, struct cifs_fid *); /* calculate a size of SMB message */ - unsigned int (*calc_smb_size)(void *); + unsigned int (*calc_smb_size)(void *buf, struct TCP_Server_Info *ptcpi); /* check for STATUS_PENDING and process it in a positive case */ bool (*is_status_pending)(char *, struct TCP_Server_Info *, int); /* check for STATUS_NETWORK_SESSION_EXPIRED */ diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 365a414a75e9..6c4da5de1ab5 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -124,7 +124,7 @@ extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset, unsigned int bytes_written); extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool); extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool); -extern unsigned int smbCalcSize(void *buf); +extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server); extern int decode_negTokenInit(unsigned char *security_blob, int length, struct TCP_Server_Info *server); extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len); diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c index 247a59774b7f..96849b530e32 100644 --- a/fs/cifs/misc.c +++ b/fs/cifs/misc.c @@ -342,7 +342,7 @@ checkSMB(char *buf, unsigned int total_read, struct TCP_Server_Info *server) /* otherwise, there is enough to get to the BCC */ if (check_smb_hdr(smb)) return -EIO; - clc_len = smbCalcSize(smb); + clc_len = smbCalcSize(smb, server); if (4 + rfclen != total_read) { cifs_dbg(VFS, "Length read does not match RFC1001 length %d\n", diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index cc88f4f0325e..d7ad0dfe4e68 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -903,7 +903,7 @@ map_smb_to_linux_error(char *buf, bool logErr) * portion, the number of word parameters and the data portion of the message */ unsigned int -smbCalcSize(void *buf) +smbCalcSize(void *buf, struct TCP_Server_Info *server) { struct smb_hdr *ptr = (struct smb_hdr *)buf; return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) + diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index a27fc8791551..eeab81c9452f 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -650,7 +650,8 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos, char *cur_ent; char *end_of_smb = cfile->srch_inf.ntwrk_buf_start + server->ops->calc_smb_size( - cfile->srch_inf.ntwrk_buf_start); + cfile->srch_inf.ntwrk_buf_start, + server); cur_ent = cfile->srch_inf.srch_entries_start; first_entry_in_buffer = cfile->srch_inf.index_of_last_entry @@ -831,7 +832,8 @@ int cifs_readdir(struct file *file, struct dir_context *ctx) cifs_dbg(FYI, "loop through %d times filling dir for net buf %p\n", num_to_fill, cifsFile->srch_inf.ntwrk_buf_start); max_len = tcon->ses->server->ops->calc_smb_size( - cifsFile->srch_inf.ntwrk_buf_start); + cifsFile->srch_inf.ntwrk_buf_start, + tcon->ses->server); end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len; tmp_buf = kmalloc(UNICODE_NAME_MAX, GFP_KERNEL); diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 68ea8491c160..f7f3ad760401 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -233,7 +233,7 @@ smb2_check_message(char *buf, unsigned int length, struct TCP_Server_Info *srvr) return 1; } - clc_len = smb2_calc_size(hdr); + clc_len = smb2_calc_size(hdr, srvr); #ifdef CONFIG_CIFS_SMB311 if (shdr->Command == SMB2_NEGOTIATE) @@ -403,7 +403,7 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr) * portion, the number of word parameters and the data portion of the message. */ unsigned int -smb2_calc_size(void *buf) +smb2_calc_size(void *buf, struct TCP_Server_Info *srvr) { struct smb2_pdu *pdu = (struct smb2_pdu *)buf; struct smb2_hdr *hdr = &pdu->hdr; @@ -411,7 +411,7 @@ smb2_calc_size(void *buf) int offset; /* the offset from the beginning of SMB to data area */ int data_length; /* the length of the variable length data area */ /* Structure Size has already been checked to make sure it is 64 */ - int len = 4 + le16_to_cpu(shdr->StructureSize); + int len = srvr->vals->header_preamble_size + le16_to_cpu(shdr->StructureSize); /* * StructureSize2, ie length of fixed parameter area has already @@ -433,12 +433,12 @@ smb2_calc_size(void *buf) * so we must add one to the calculation (and 4 to account for * the size of the RFC1001 hdr. */ - if (offset + 4 + 1 < len) { - cifs_dbg(VFS, "data area offset %d overlaps SMB2 header %d\n", - offset + 4 + 1, len); + if (offset + srvr->vals->header_preamble_size + 1 < len) { + cifs_dbg(VFS, "data area offset %zu overlaps SMB2 header %d\n", + offset + srvr->vals->header_preamble_size + 1, len); data_length = 0; } else { - len = 4 + offset + data_length; + len = srvr->vals->header_preamble_size + offset + data_length; } } calc_size_exit: diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 800270b729e2..8d7bb9a1dcb4 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -36,7 +36,7 @@ struct smb_rqst; extern int map_smb2_to_linux_error(char *buf, bool log_err); extern int smb2_check_message(char *buf, unsigned int length, struct TCP_Server_Info *server); -extern unsigned int smb2_calc_size(void *buf); +extern unsigned int smb2_calc_size(void *buf, struct TCP_Server_Info *server); extern char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr); extern __le16 *cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb); |