mirror of
https://github.com/ntop/n2n.git
synced 2024-09-19 16:41:11 +02:00
92dfa67e22
1. Automatically assign IP addresses to the edge through the DHCP function that comes with sn, the default IP address pool is 172.17.12.0/24. 2. The -d parameter is added to sn, and the IP address pool of the embedded DHCP can be customized. 3. Now edge does not need to add -a and -s parameters to automatically obtain the IP address. 4. The IP automatically obtained by the cross-community edge can be the same, because the communities are isolated from each other and do not interfere with each other. 5. On the management side of sn (127.0.0.1:5645), you can now view the IP address of the tutap adapter of each edge. 6. Fix many bugs that have a certain chance of causing memory leaks. 7. Note: This version is not fully compatible with the previous version.
124 lines
4.9 KiB
C
124 lines
4.9 KiB
C
/**
|
|
* (C) 2007-20 - ntop.org and contributors
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not see see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
/* N2N packet header indicators. */
|
|
#define MSG_TYPE_REGISTER 1
|
|
#define MSG_TYPE_DEREGISTER 2
|
|
#define MSG_TYPE_PACKET 3
|
|
#define MSG_TYPE_REGISTER_ACK 4
|
|
#define MSG_TYPE_REGISTER_SUPER 5
|
|
#define MSG_TYPE_REGISTER_SUPER_ACK 6
|
|
#define MSG_TYPE_REGISTER_SUPER_NAK 7
|
|
#define MSG_TYPE_FEDERATION 8
|
|
#define MSG_TYPE_PEER_INFO 9
|
|
#define MSG_TYPE_QUERY_PEER 10
|
|
#define MSG_TYPE_MAX_TYPE 10
|
|
|
|
#define SOCKET_TIMEOUT_INTERVAL_SECS 10
|
|
#define REGISTER_SUPER_INTERVAL_DFL 20 /* sec, usually UDP NAT entries in a firewall expire after 30 seconds */
|
|
|
|
#define IFACE_UPDATE_INTERVAL (30) /* sec. How long it usually takes to get an IP lease. */
|
|
#define TRANSOP_TICK_INTERVAL (10) /* sec */
|
|
|
|
#define PURGE_REGISTRATION_FREQUENCY 30
|
|
#define REGISTRATION_TIMEOUT 60
|
|
|
|
#define SORT_COMMUNITIES_INTERVAL 90 /* sec. until supernode sorts communities' hash list again */
|
|
|
|
#define ETH_FRAMESIZE 14
|
|
#define IP4_SRCOFFSET 12
|
|
#define IP4_DSTOFFSET 16
|
|
#define IP4_MIN_SIZE 20
|
|
#define UDP_SIZE 8
|
|
|
|
/* parameters for replay protection */
|
|
#define TIME_STAMP_FRAME 0x0000001000000000LL /* clocks of different computers are allowed +/- 16 seconds to be off */
|
|
#define TIME_STAMP_JITTER 0x0000000027100000LL /* we allow a packet to arrive 160 ms (== 0x27100 us) before another
|
|
* set to 0x0000000000000000LL if increasing (or equal) time stamps allowed only */
|
|
|
|
/* parameter for random number generation */
|
|
#define RND_RETRIES 1000 /* syscall and inquiring random number from hardware generators might fail, so we will retry */
|
|
|
|
/* N2N compression indicators. */
|
|
/* Compression is disabled by default for outgoing packets if no cli
|
|
* option is given. All edges are built with decompression support so
|
|
* they are able to understand each other (this applies to lzo only). */
|
|
#define N2N_COMPRESSION_ID_NONE 0 /* default, see edge_init_conf_defaults(...) in edge_utils.c */
|
|
#define N2N_COMPRESSION_ID_LZO 1 /* set if '-z1' or '-z' cli option is present, see setOption(...) in edge.c */
|
|
#ifdef N2N_HAVE_ZSTD
|
|
#define N2N_COMPRESSION_ID_ZSTD 2 /* set if '-z2' cli option is present, available only if compiled with zstd lib */
|
|
#define ZSTD_COMPRESSION_LEVEL 7 /* 1 (faster) ... 22 (more compression) */
|
|
#endif
|
|
// with the next major packet structure update, make '0' = invalid, and '1' = no compression
|
|
// '2' = LZO, '3' = ZSTD, ... REVISIT then (also: change all occurences in source).
|
|
|
|
#define N2N_COMPRESSION_ID_BITLEN 3 /* number of bits used for encoding compression id in the uppermost
|
|
bits of transform_id; will be obsolete as soon as compression gets
|
|
its own field in the packet. REVISIT then. */
|
|
|
|
/* Header encryption indicators */
|
|
#define HEADER_ENCRYPTION_UNKNOWN 0
|
|
#define HEADER_ENCRYPTION_NONE 1
|
|
#define HEADER_ENCRYPTION_ENABLED 2
|
|
|
|
#define DEFAULT_MTU 1290
|
|
|
|
#define HASH_ADD_PEER(head,add) \
|
|
HASH_ADD(hh,head,mac_addr,sizeof(n2n_mac_t),add)
|
|
#define HASH_FIND_PEER(head,mac,out) \
|
|
HASH_FIND(hh,head,mac,sizeof(n2n_mac_t),out)
|
|
#define N2N_EDGE_SN_HOST_SIZE 48
|
|
#define N2N_EDGE_NUM_SUPERNODES 2
|
|
#define N2N_EDGE_SUP_ATTEMPTS 3 /* Number of failed attmpts before moving on to next supernode. */
|
|
#define N2N_PATHNAME_MAXLEN 256
|
|
#define N2N_EDGE_MGMT_PORT 5644
|
|
#define N2N_SN_MGMT_PORT 5645
|
|
|
|
#define N2N_NETMASK_STR_SIZE 16 /* dotted decimal 12 numbers + 3 dots */
|
|
#define N2N_MACNAMSIZ 18 /* AA:BB:CC:DD:EE:FF + NULL*/
|
|
#define N2N_IF_MODE_SIZE 16 /* static | dhcp */
|
|
|
|
#define N2N_SN_LPORT_DEFAULT 7654
|
|
#define N2N_SN_PKTBUF_SIZE 2048
|
|
|
|
|
|
/* The way TUNTAP allocated IP. */
|
|
#define TUNTAP_IP_MODE_SN_ASSIGN 0
|
|
#define TUNTAP_IP_MODE_STATIC 1
|
|
#define TUNTAP_IP_MODE_DHCP 2
|
|
|
|
/* Default network segment of the dhcp service provided by sn. */
|
|
#define N2N_SN_DHCP_NET_ADDR_DEFAULT "172.17.12.0"
|
|
#define N2N_SN_DHCP_NET_BIT_DEFAULT 24
|
|
|
|
/* ************************************** */
|
|
|
|
#define SUPERNODE_IP "127.0.0.1"
|
|
#define SUPERNODE_PORT 1234
|
|
|
|
/* ************************************** */
|
|
|
|
#ifndef max
|
|
#define max(a, b) ((a < b) ? b : a)
|
|
#endif
|
|
|
|
#ifndef min
|
|
#define min(a, b) ((a > b) ? b : a)
|
|
#endif
|
|
|