Boris Polozov

i'm sorry, just found typo in my code :< but about addon info, i can post all uncompressed data. as i said above they are wierd

Hi, thanks, but, i've alrady have srp generated key and rc4 inited with this key, SMSG_AUTH_CHALLENGE sent, CMSG_AUTH_SESSION is parsed, digests are equal( session key is correct ). i just send rc4(SMSG_AUTH_RESPONSE[:4]) + SMSG_AUTH_RESPONSE[4:] and then client do nothing, it seems before this - server must send addoninfopacket, about i've got some questions too, it seems all 'blizzard_*_ui\0' addons must have crc, but i see 9 bytes after name and all they are ZERO, like this (it is part of unziped addons). is it correct? [ 'B', 'l', 'i', 'z', 'z', 'a', 'r', 'd', '_', 'T', 'r', 'a', 'd', 'e', 'S', 'k', 'i', 'l', 'l', 'U', 'I', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', 'B', 'l', 'i', 'z', 'z', 'a', 'r', 'd', '_', 'T', 'r', 'a', 'i', 'n', 'e', 'r', 'U', 'I', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00'] As i said, i saw this things in tcpdump, 14bytes packet is AUTH response, but what are before them? is it addoninfo requset? (8085 - server) 12:18:37.026734 IP xxxxxxxxxxxxxxxxxxx.8085 > nbook.39790: Flags [P.], seq 9:110, ack 200, win 231, options [nop,nop,TS val 1758737196 ecr 1522280813], length 101 0x0000: 4518 0099 2514 0000 3806 42f1 5e17 adf8 0x0010: c0a8 4d8a 1f95 9b6e 2519 4546 516e 9eb8 0x0020: 8018 00e7 611a 0000 0101 080a 68d4 332c 0x0030: 5abc 296d 70d5 9d81 d89a 6949 8160 5fd3 0x0040: ddb6 ffc7 3cbc 2e04 48b9 79f2 ad62 1c92 0x0050: b0f3 b635 1de4 128b fdf2 330d 95f3 81e2 0x0060: 7602 0000 0200 0002 5900 0000 0000 0002 0x0070: 0000 0200 0002 0000 0221 0000 0000 0000 0x0080: 0236 0000 0000 0000 0239 0000 0000 0000 0x0090: 0200 0002 0000 0200 00 12:18:37.042131 IP nbook.39790 > xxxxxxxxxxxxxxxxxxx.8085: Flags [P.], seq 200:207, ack 110, win 502, options [nop,nop,TS val 1522280918 ecr 1758737196], length 7 0x0000: 4500 003b 94b5 4000 4006 8bc5 c0a8 4d8a 0x0010: 5e17 adf8 9b6e 1f95 516e 9eb8 2519 45ab 0x0020: 8018 01f6 904c 0000 0101 080a 5abc 29d6 0x0030: 68d4 332c 70b7 8064 d68a cc 12:18:37.070657 IP xxxxxxxxxxxxxxxxxxx.8085 > nbook.39790: Flags [P.], seq 110:124, ack 200, win 231, options [nop,nop,TS val 1758737239 ecr 1522280813], length 14 0x0000: 4518 0042 2515 0000 3806 4347 5e17 adf8 0x0010: c0a8 4d8a 1f95 9b6e 2519 45ab 516e 9eb8 0x0020: 8018 00e7 100b 0000 0101 080a 68d4 3357 0x0030: 5abc 296d d76d 31c1 0c00 0000 0000 0000 0x0040: 0000

Hello there, i'm trying to study Golang and for this i've chose as first project to write a very naive wow emulator, as i'm a wow fun. %) I've got a problem with SMSG_AUTH_RESPONSE on 1.12.1 client. Clients digest and server generated comparsion is correct as here is - https://github.com/cmangos/mangos-classic/blob/master/src/game/Server/WorldSocket.cpp#L403 then i see ARC4 init with session key, i do the same, here is code of ARC4 package utils const ( CryptedRecvLen uint8 = 6 CryptedSendLen uint8 = 4 ) type Cipher struct { S []byte sendI uint8 sendJ uint8 recvI uint8 recvJ uint8 inited bool } func (c *Cipher) Init (key []byte) { c.S = key c.sendI, c.sendJ, c.recvI, c.recvJ = 0,0,0,0 c.inited = true } func (c *Cipher) DecryptRecv (data []byte) { if !c.inited { return } var t uint8 = 0 for t < CryptedRecvLen { c.recvI %= uint8(len(c.S)) // Decrypting decrypted := (data[t] - uint8(c.recvJ)) ^ c.S[c.recvI] c.recvI++ c.recvJ = data[t] data[t] = decrypted t++ } } func (c *Cipher) EncryptSend (data []byte) { if !c.inited { return } var t uint8 = 0 for t < CryptedSendLen { c.sendI %= uint8(len(c.S)) encrypted := (data[t] ^ c.S[c.sendI]) + c.recvJ c.sendI++ c.sendJ = encrypted data[t] = encrypted t++ } } - https://github.com/cmangos/mangos-classic/blob/master/src/game/Server/WorldSocket.cpp#L427 then i send package func (s SMSGAuthResponsePacket) Encode() []byte { smsg := NewPacket(opcodes.SMSG_AUTH_RESPONSE) smsg.WriteUint8(s.Code) smsg.WriteUint32(0) // BillingTimeRemaining smsg.WriteUint8(0) // BillingPlanFlags smsg.WriteUint32(0) // hz return smsg.Finish() } Packet before encription [0 12 238 1 12 0 0 0 0 0 0 0 0 0] Packet after encription [240 83 166 166 12 0 0 0 0 0 0 0 0 0] After this - client do nothing, i've seen that while connecting to mangos - server sends a packet with 101 byte before SMSG_AUTH_RESPONSE, but while reading mangos' code i can't recognize where is it lol (but it seems it is addonpacket, but why it is before SMSG_AUTH_RESPONSE?). Need any help to recognize what is going on, any help appreciated. P.S. server decripts header of CSMG_PING, it seems DecriptionRecv function is correct %)