static int cifs_save_resume_key(const char *current_entry, struct cifsFileInfo *cifsFile) { int rc = 0; unsigned int len = 0; __u16 level; char * filename; if((cifsFile == NULL) || (current_entry == NULL)) return -EINVAL; level = cifsFile->srch_inf.info_level; if(level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO * pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if(cifsFile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } cifsFile->srch_inf.resume_key = pFindData->ResumeKey; } else if(level == SMB_FIND_FILE_DIRECTORY_INFO) { FILE_DIRECTORY_INFO * pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; } else if(level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { FILE_FULL_DIRECTORY_INFO * pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; } else if(level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { SEARCH_ID_FULL_DIR_INFO * pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; } else if(level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { FILE_BOTH_DIRECTORY_INFO * pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); cifsFile->srch_inf.resume_key = pFindData->FileIndex; } else { cFYI(1,("Unknown findfirst level %d",level)); return -EINVAL; } cifsFile->srch_inf.resume_name_len = len; cifsFile->srch_inf.presume_name = filename; return rc; }
static void cifs_fill_dirent_unix(struct cifs_dirent *de, const FILE_UNIX_INFO *info, bool is_unicode) { de->name = &info->FileName[0]; if (is_unicode) de->namelen = cifs_unicode_bytelen(de->name); else de->namelen = strnlen(de->name, PATH_MAX); de->resume_key = info->ResumeKey; de->ino = le64_to_cpu(info->basic.UniqueId); }
/* inode num, inode type and filename returned */ static int cifs_get_name_from_search_buf(struct qstr *pqst, char *current_entry, __u16 level, unsigned int unicode, struct cifs_sb_info *cifs_sb, int max_len, __u64 *pinum) { int rc = 0; unsigned int len = 0; char *filename; struct nls_table *nlt = cifs_sb->local_nls; *pinum = 0; if (level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } *pinum = pFindData->UniqueId; } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); *pinum = pFindData->UniqueId; } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_INFO_STANDARD) { FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; } else { cFYI(1, ("Unknown findfirst level %d", level)); return -EINVAL; } if (len > max_len) { cERROR(1, ("bad search response length %d past smb end", len)); return -EINVAL; } if (unicode) { /* BB fixme - test with long names */ /* Note converted filename can be longer than in unicode */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR) pqst->len = cifs_convertUCSpath((char *)pqst->name, (__le16 *)filename, len/2, nlt); else pqst->len = cifs_strfromUCS_le((char *)pqst->name, (__le16 *)filename, len/2, nlt); } else { pqst->name = filename; pqst->len = len; } pqst->hash = full_name_hash(pqst->name, pqst->len); /* cFYI(1, ("filldir on %s",pqst->name)); */ return rc; }
/* return 0 if no match and 1 for . (current directory) and 2 for .. (parent) */ static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile) { int rc = 0; char *filename = NULL; int len = 0; if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (cfile->srch_inf.unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, 5); } } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) { FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) { FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; len = pFindData->FileNameLength; } else { cFYI(1, ("Unknown findfirst level %d", cfile->srch_inf.info_level)); } if (filename) { if (cfile->srch_inf.unicode) { __le16 *ufilename = (__le16 *)filename; if (len == 2) { /* check for . */ if (ufilename[0] == UNICODE_DOT) rc = 1; } else if (len == 4) { /* check for .. */ if ((ufilename[0] == UNICODE_DOT) && (ufilename[1] == UNICODE_DOT)) rc = 2; } } else /* ASCII */ { if (len == 1) { if (filename[0] == '.') rc = 1; } else if (len == 2) { if ((filename[0] == '.') && (filename[1] == '.')) rc = 2; } } } return rc; }
/* inode num, inode type and filename returned */ static int cifs_get_name_from_search_buf(struct qstr *pqst, char *current_entry, __u16 level, unsigned int unicode, struct cifs_sb_info *cifs_sb, unsigned int max_len, __u64 *pinum) { int rc = 0; unsigned int len = 0; char *filename; struct nls_table *nlt = cifs_sb->local_nls; *pinum = 0; if (level == SMB_FIND_FILE_UNIX) { FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry; filename = &pFindData->FileName[0]; if (unicode) { len = cifs_unicode_bytelen(filename); } else { /* BB should we make this strnlen of PATH_MAX? */ len = strnlen(filename, PATH_MAX); } *pinum = le64_to_cpu(pFindData->basic.UniqueId); } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { FILE_DIRECTORY_INFO *pFindData = (FILE_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) { FILE_FULL_DIRECTORY_INFO *pFindData = (FILE_FULL_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) { SEARCH_ID_FULL_DIR_INFO *pFindData = (SEARCH_ID_FULL_DIR_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); *pinum = le64_to_cpu(pFindData->UniqueId); } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) { FILE_BOTH_DIRECTORY_INFO *pFindData = (FILE_BOTH_DIRECTORY_INFO *)current_entry; filename = &pFindData->FileName[0]; len = le32_to_cpu(pFindData->FileNameLength); } else if (level == SMB_FIND_FILE_INFO_STANDARD) { FIND_FILE_STANDARD_INFO *pFindData = (FIND_FILE_STANDARD_INFO *)current_entry; filename = &pFindData->FileName[0]; /* one byte length, no name conversion */ len = (unsigned int)pFindData->FileNameLength; } else { cFYI(1, "Unknown findfirst level %d", level); return -EINVAL; } if (len > max_len) { cERROR(1, "bad search response length %d past smb end", len); return -EINVAL; } if (unicode) { pqst->len = cifs_from_ucs2((char *) pqst->name, (__le16 *) filename, UNICODE_NAME_MAX, min(len, max_len), nlt, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); pqst->len -= nls_nullsize(nlt); } else { pqst->name = filename; pqst->len = len; } return rc; }