Andrea Maria Piana e65760ca85 Add basic peersyncing
This commit adds basic syncing capabilities with peers if they are both
online.

It updates the work done on MVDS, but I decided to create the code in
status-go instead, since it's very tight to the application (similarly
the code that was the inspiration for mvds, bramble, is all tight
together at the database level).

I reused parts of the protobufs.

The flow is:

1) An OFFER message is sent periodically with a bunch of message-ids and
   group-ids.
2) Anyone can REQUEST some of those messages if not present in their
   database.

3) The peer will then send over those messages.

It's disabled by default, but I am planning to add a way to set up the
flags.
2024-01-23 12:46:17 +00:00

46 lines
1.0 KiB
C

#ifndef _NETINET_IGMP_H
#define _NETINET_IGMP_H
#include <stdint.h>
#include <netinet/in.h>
struct igmp {
uint8_t igmp_type;
uint8_t igmp_code;
uint16_t igmp_cksum;
struct in_addr igmp_group;
};
#define IGMP_MINLEN 8
#define IGMP_MEMBERSHIP_QUERY 0x11
#define IGMP_V1_MEMBERSHIP_REPORT 0x12
#define IGMP_V2_MEMBERSHIP_REPORT 0x16
#define IGMP_V2_LEAVE_GROUP 0x17
#define IGMP_DVMRP 0x13
#define IGMP_PIM 0x14
#define IGMP_TRACE 0x15
#define IGMP_MTRACE_RESP 0x1e
#define IGMP_MTRACE 0x1f
#define IGMP_MAX_HOST_REPORT_DELAY 10
#define IGMP_TIMER_SCALE 10
#define IGMP_DELAYING_MEMBER 1
#define IGMP_IDLE_MEMBER 2
#define IGMP_LAZY_MEMBER 3
#define IGMP_SLEEPING_MEMBER 4
#define IGMP_AWAKENING_MEMBER 5
#define IGMP_v1_ROUTER 1
#define IGMP_v2_ROUTER 2
#define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY
#define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT
#define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT
#define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP
#endif