"Directory Dump" (APP/LFS)

ITOS Mnemonic:  LFSDIRDUMP

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

Dumps the contents of a directory specified by the LFSFILEID path. Only the device and directory number portions of the file ID are used. If the directory value is '127', a series of LFSROOTLIST telemetry packets are sent, one for each directory in the root directory of the device. Otherwise, a series of LFSDIRLIST telemetry packets are sent, one for each file in the directory. Valid devices for this telecommand are '/boot (0), '/ram' (1), '/ee0' (2), and '/ee1' (3). When the telecommand is directed at the boot partitions (device 0), up to 6 file listings may be produced. The lower and upper EEPROM banks each contain 3 boot file slots, which are reported if the file header contained at the beginning of the slot is valid.

Layout:  (hide detail; help)

Directory Dump (DirDump) Telecommand Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=1	SH	APID=0x648:5
002	SF=3		Sequence Count
004	Packet Length=11
006	0	Function Code=5
008	NODETRANID flag
00A	PAD16 pad16
00C	FILEID fileId
010	Packet Checksum

DirDump (pkt)
|  NODETRANID flag (bf)
|  |  NODE nid (0-3)
|  |  TRANID tranID (4-15)
|  PAD16 pad16 (fld)
|  FILEID fileId (fld)

typedef struct _LFS_DirDump_Pkt {

    /* CCSDS header */
    char                 hdr[8];

    /* Command payload */
    LFS_DirDump_Prm      pay;

} LFS_DirDump_Pkt;

Fields:

FILEID (index)

Attribute(s):  

Brief:  "File Storage ID"

Instance(s):  fileId

NODETRANID (index)

Attribute(s):  

Brief:  "Compound of node and transaction ID"

Instance(s):  flag

Compound of node and transaction ID

PAD16 (index)

Attribute(s):  LFSMBZ

Brief:  "16-bit padding"

Instance(s):  pad16