2.7 Uncompressed OAB Version 2 and OAB Version 3 Changes File
The Changes file<7> specifies the changes that need to be made to the other OAB files to produce a file set that represents the next generational version of the OAB version 2 and OAB version 3 files. The Changes file consists of a sequence of variable size records that contain data to update individual records. Numerous change files can be required to make a set of OAB version 2 and OAB version 3 files current with the server.
The following ABNF definition shows the format of an uncompressed OAB version 2 or OAB version 3 Changes file.
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changes-file = OAB_HDR 1*change-record change-record = CHG_REC [display-name parent-dn-offset rdn] [domain-name-offset local-portion] [alias] [location] [surname] [details] [display-type] [object-type] display-name = string-value parent-dn-offset = %x00000000-%xFFFFFFFF ; little endian 32 bit value ; offset of the pdn-record in the ; rdn index file rdn = ( non-space-teletex ) / ( non-space-teletex *62(teletex-char) non-space-teletex ) ; rdn values are limited to 64 characters ; the number of rdns is limited to 16 but the ; total cumulative length of rdn characters in ; an x500-dn is limited to 256. teletex-char = SP / non-space-teletex non-space-teletex = "!" / DQUOTE / "%" / "&" / "\" / "(" / ")" / "*" / "+" / "," / "-" / "." / "0" / "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9" / ":" / "<" / "=" / ">" / "?" / "@" / "A" / "B" / "C" / "D" / "E" / "F" / "G" / "H" / "I" / "J" / "K" / "L" / "M" / "N" / "O" / "P" / "Q" / "R" / "S" / "T" / "U" / "V" / "W" / "X" / "Y" / "Z" / "[" / "]" / "_" / "a" / "b" / "c" / "d" / "e" / "f" / "g" / "h" / "i" / "j" / "k" / "l" / "m" / "n" / "o" / "p" / "q" / "r" / "s" / "t" / "u" / "v" / "w" / "x" / "y" / "z" / "|" domain-name-offset = %x00000000-%xFFFFFFFF ; little endian 32 bit value ; offset of the domain name record in the ; rdn index file local-portion = 1*62(ansi-char) '@' null alias = 1*63(ansi-char) null location = 0*63(ansi-char) null surname = 0*63(ansi-char) null details = byte-count 0*65535(OCTET) ; The byte-count element is defined in the ; ABNF definition of section 2.6. display-type = DT-MAILUSER / DT-DISTLIST / DT-FORUM / DT-AGENT / DT-ORGANIZATION / DT-REMOTE-MAILUSER ; 8 bit value DT-MAILUSER = %x00 ; mailbox display type DT-DISTLIST = %x01 ; distribution list display type DT-FORUM = %x02 ; public folder display type DT-AGENT = %x03 ; mail agent display type DT-ORGANIZATION = %x04 ; department or organization display type DT-REMOTE-MAILUSER = %x06 ; external e-mail address display type object-type = MAPI-FOLDER / MAPI-MAILUSER / MAPI-DISTLIST ; 8 bit value – high order bit is set to ; 1 if the entry can receive all ; message content, including Rich Text ; Format (RTF) and OLE objects ; For details, see [MS-OXOABK] section 2.2.3.10. MAPI-FOLDER = %x03 MAPI-MAILUSER = %x06 MAPI-DISTLIST = %x08