Difference between revisions of "Deployment Platform/Sneakernet/Packets format"

From Sugar Labs
Jump to navigation Jump to search
Line 31: Line 31:
 
:* {{Code|pull_sequence}}: Sequence after merging original PUSH packet
 
:* {{Code|pull_sequence}}: Sequence after merging original PUSH packet
  
* '''PULL''' packet:
+
* '''sn_pull''', pull Sugar Network data.
:* {{Code|type}}: {{Code|pull}}
+
:* {{Code|cmd: sn_pull}};
:* {{Code|src}}: sender's identity to pull to
+
:* {{Code|sequence}}: sequence to pull.
:* {{Code|dst}}: receiver's identity to pull from
+
 
:* {{Code|sequence}}: Sequence to pull for
+
* '''files_pull''', pull files from shared directory.
 +
:* {{Code|cmd: files_pull}};
 +
:* {{Code|directory}}, synchronized directory to pull;
 +
:* {{Code|sequence}}, sequence to pull.

Revision as of 10:57, 27 July 2012

Packets format

Packets are tarball files with .packet suffix.

On logic level, every packet consists of:

  • one header, a dictionary of key-value pairs;
  • records, a dictionary of key-value pairs and optional data depending on record type.

Header

Header is being stored in JSON notation in /header file in packet tarball.

  • src, sender's GUID
  • dst, optional destination GUID
  • filename, suggested file name for packet file, it is assumed to be unique

Record types

  • sn_push:
  • cmd: sn_push
  • src: sender's identity to push from
  • [dst]: receiver's identity to push to, optional for packets from master
  • sequence: Sequence associated with packet's payload
  • ACK packet:
  • type: ack
  • src: master's identity
  • dst: receiver's identity ack is intended for
  • push_sequence: original PUSH packet's sequence
  • pull_sequence: Sequence after merging original PUSH packet
  • sn_pull, pull Sugar Network data.
  • cmd: sn_pull;
  • sequence: sequence to pull.
  • files_pull, pull files from shared directory.
  • cmd: files_pull;
  • directory, synchronized directory to pull;
  • sequence, sequence to pull.