diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/smb2pdu.c | 52 | ||||
| -rw-r--r-- | fs/cifs/smb2proto.h | 3 |
2 files changed, 44 insertions, 11 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index e4afdaae743f..4938e8b6d32f 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2081,8 +2081,9 @@ validate_and_copy_buf(unsigned int offset, unsigned int buffer_length, static int query_info(const unsigned int xid, struct cifs_tcon *tcon, - u64 persistent_fid, u64 volatile_fid, u8 info_class, - size_t output_len, size_t min_len, void *data) + u64 persistent_fid, u64 volatile_fid, u8 info_class, u8 info_type, + u32 additional_info, size_t output_len, size_t min_len, void **data, + u32 *dlen) { struct smb2_query_info_req *req; struct smb2_query_info_rsp *rsp = NULL; @@ -2108,10 +2109,11 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon, if (encryption_required(tcon)) flags |= CIFS_TRANSFORM_REQ; - req->InfoType = SMB2_O_INFO_FILE; + req->InfoType = info_type; req->FileInfoClass = info_class; req->PersistentFileId = persistent_fid; req->VolatileFileId = volatile_fid; + req->AdditionalInformation = cpu_to_le32(additional_info); /* 4 for rfc1002 length field and 1 for Buffer */ req->InputBufferOffset = cpu_to_le16(sizeof(struct smb2_query_info_req) - 1 - 4); @@ -2130,24 +2132,51 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon, goto qinf_exit; } + if (dlen) { + *dlen = le32_to_cpu(rsp->OutputBufferLength); + if (!*data) { + *data = kmalloc(*dlen, GFP_KERNEL); + if (!*data) { + cifs_dbg(VFS, + "Error %d allocating memory for acl\n", + rc); + *dlen = 0; + goto qinf_exit; + } + } + } + rc = validate_and_copy_buf(le16_to_cpu(rsp->OutputBufferOffset), le32_to_cpu(rsp->OutputBufferLength), - &rsp->hdr, min_len, data); + &rsp->hdr, min_len, *data); qinf_exit: free_rsp_buf(resp_buftype, rsp); return rc; } +int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_fid, u64 volatile_fid, struct smb2_file_all_info *data) +{ + return query_info(xid, tcon, persistent_fid, volatile_fid, + FILE_ALL_INFORMATION, SMB2_O_INFO_FILE, 0, + sizeof(struct smb2_file_all_info) + PATH_MAX * 2, + sizeof(struct smb2_file_all_info), (void **)&data, + NULL); +} + int -SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, +SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, u64 volatile_fid, - struct smb2_file_all_info *data) + void **data, u32 *plen) { + __u32 additional_info = OWNER_SECINFO | GROUP_SECINFO | DACL_SECINFO; + *plen = 0; + return query_info(xid, tcon, persistent_fid, volatile_fid, - FILE_ALL_INFORMATION, - sizeof(struct smb2_file_all_info) + PATH_MAX * 2, - sizeof(struct smb2_file_all_info), data); + 0, SMB2_O_INFO_SECURITY, additional_info, + SMB2_MAX_BUFFER_SIZE, + sizeof(struct smb2_file_all_info), data, plen); } int @@ -2155,9 +2184,10 @@ SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, u64 volatile_fid, __le64 *uniqueid) { return query_info(xid, tcon, persistent_fid, volatile_fid, - FILE_INTERNAL_INFORMATION, + FILE_INTERNAL_INFORMATION, SMB2_O_INFO_FILE, 0, + sizeof(struct smb2_file_internal_info), sizeof(struct smb2_file_internal_info), - sizeof(struct smb2_file_internal_info), uniqueid); + (void **)&uniqueid, NULL); } /* diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 6853454fc871..3595cd755147 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -135,6 +135,9 @@ extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_file_id, u64 volatile_file_id, struct smb2_file_all_info *data); +extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_file_id, u64 volatile_file_id, + void **data, unsigned int *plen); extern int SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, u64 volatile_fid, __le64 *uniqueid); |