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Fixed encrypted messages

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This commit is contained in:
vvaltman 2014-10-18 19:36:44 +04:00
parent 3765e69dba
commit de08953038
4 changed files with 57 additions and 38 deletions
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2
CHANGELOG
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@ -1,3 +1,5 @@
1.0.6
* layer 18 support
1.0.5
* listening socket (tcp and unix) for commands
1.0.4

6
encrypted_scheme17.tl
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@ -1,10 +1,10 @@
---types---
decryptedMessageLayer#99a438cf layer:int message:DecryptedMessage = DecryptedMessageLayer;
decryptedMessageLayer#1be31789 layer:int message:DecryptedMessage = DecryptedMessageLayer;
decryptedMessage_l16#1f814f1f random_id:long random_bytes:bytes message:string media:DecryptedMessageMedia = DecryptedMessage;
decryptedMessageService_l16#aa48327d random_id:long random_bytes:bytes action:DecryptedMessageAction = DecryptedMessage;
decryptedMessage#20a6d4e2 in_seq_no:int out_seq_no:int ttl:int random_id:long random_bytes:bytes message:string media:DecryptedMessageMedia = DecryptedMessage;
decryptedMessageService#9bb84a4e in_seq_no:int out_seq_no:int random_id:long random_bytes:bytes action:DecryptedMessageAction = DecryptedMessage;
decryptedMessage#204d3878 in_seq_no:int out_seq_no:int ttl:int random_id:long random_bytes:bytes message:string media:DecryptedMessageMedia = DecryptedMessage;
decryptedMessageService#73164160 in_seq_no:int out_seq_no:int random_id:long random_bytes:bytes action:DecryptedMessageAction = DecryptedMessage;
decryptedMessageMediaEmpty#89f5c4a = DecryptedMessageMedia;
decryptedMessageMediaPhoto#32798a8c thumb:bytes thumb_w:int thumb_h:int w:int h:int size:int key:bytes iv:bytes = DecryptedMessageMedia;

45
queries.c
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@ -896,14 +896,15 @@ void tgl_do_send_encr_msg_action (struct tgl_message *M, void (*callback)(void *
out_int (CODE_decrypted_message_service_l16);
} else {
out_int (CODE_decrypted_message_layer);
out_random (15 + 4 * (lrand48 () % 3));
out_int (TGL_ENCRYPTED_LAYER);
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id) - 2);
out_int (CODE_decrypted_message_service);
}
out_long (M->id);
out_random (15 + 4 * (lrand48 () % 3));
if (P->encr_chat.layer >= 17) {
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id));
if (P->encr_chat.layer < 17) {
out_random (15 + 4 * (lrand48 () % 3));
}
switch (M->action.type) {
@ -945,17 +946,19 @@ void tgl_do_send_encr_msg (struct tgl_message *M, void (*callback)(void *callbac
out_long (M->id);
encr_start ();
if (P->encr_chat.layer <= 16) {
out_int (CODE_decrypted_message_l16);
out_int (CODE_decrypted_message_service_l16);
} else {
out_int (CODE_decrypted_message_layer);
out_random (15 + 4 * (lrand48 () % 3));
out_int (TGL_ENCRYPTED_LAYER);
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id) - 2);
out_int (CODE_decrypted_message);
}
out_long (M->id);
out_random (15 + 4 * (lrand48 () % 3));
if (P->encr_chat.layer >= 17) {
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id));
if (P->encr_chat.layer < 17) {
out_random (15 + 4 * (lrand48 () % 3));
} else {
out_int (0);
}
out_cstring ((void *)M->message, M->message_len);
@ -1692,17 +1695,19 @@ static void send_part (struct send_file *f, void *callback, void *callback_extra
out_long (r);
encr_start ();
if (P->encr_chat.layer <= 16) {
out_int (CODE_decrypted_message_l16);
out_int (CODE_decrypted_message_service_l16);
} else {
out_int (CODE_decrypted_message_layer);
out_random (15 + 4 * (lrand48 () % 3));
out_int (TGL_ENCRYPTED_LAYER);
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id));
out_int (CODE_decrypted_message);
}
out_long (r);
out_random (15 + 4 * (lrand48 () % 3));
if (P->encr_chat.layer >= 17) {
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id) + 2);
if (P->encr_chat.layer < 17) {
out_random (15 + 4 * (lrand48 () % 3));
} else {
out_int (0);
}
out_string ("");
@ -2146,17 +2151,19 @@ void tgl_do_send_location(tgl_peer_id_t id, double latitude, double longitude, v
out_long (r);
encr_start ();
if (P->encr_chat.layer <= 16) {
out_int (CODE_decrypted_message_l16);
out_int (CODE_decrypted_message_service_l16);
} else {
out_int (CODE_decrypted_message_layer);
out_random (15 + 4 * (lrand48 () % 3));
out_int (TGL_ENCRYPTED_LAYER);
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id));
out_int (CODE_decrypted_message);
}
out_long (r);
out_random (15 + 4 * (lrand48 () % 3));
if (P->encr_chat.layer >= 17) {
out_int (2 * P->encr_chat.in_seq_no + (P->encr_chat.admin_id != tgl_state.our_id));
out_int (2 * P->encr_chat.out_seq_no + (P->encr_chat.admin_id == tgl_state.our_id) + 2);
if (P->encr_chat.layer < 17) {
out_random (15 + 4 * (lrand48 () % 3));
} else {
out_int (0);
}
out_string ("");

42
structures.c
View File

@ -1235,26 +1235,22 @@ void tglf_fetch_encrypted_message (struct tgl_message *M) {
in_end = in_ptr + ll;
x = fetch_int ();
if (x == CODE_decrypted_message_layer) {
ll = prefetch_strlen ();
fetch_str (ll); // random_bytes
int layer = fetch_int ();
assert (layer >= 0);
if (P && ((P->flags) & FLAG_CREATED)) {
bl_do_encr_chat_set_layer ((void *)P, layer);
}
x = fetch_int ();
}
assert (x == CODE_decrypted_message || x == CODE_decrypted_message_service || x == CODE_decrypted_message_l16 || x == CODE_decrypted_message_service_l16);
//assert (id == fetch_long ());
long long new_id = fetch_long ();
if (P && P->encr_chat.layer >= 17) {
assert (new_id == id);
}
ll = prefetch_strlen ();
fetch_str (ll); // random_bytes
if (x == CODE_decrypted_message || x == CODE_decrypted_message_service) {
//x = fetch_int ();
//assert (x == CODE_decrypted_message || x == CODE_decrypted_message_service);
out_seq_no = fetch_int ();
in_seq_no = fetch_int ();
if (in_seq_no / 2 != P->encr_chat.in_seq_no + 1) {
vlogprintf (E_WARNING, "Hole in seq in secret chat. in_seq_no = %d, expect_seq_no = %d\n", in_seq_no / 2, P->encr_chat.in_seq_no + 1);
if (in_seq_no / 2 != P->encr_chat.in_seq_no) {
vlogprintf (E_WARNING, "Hole in seq in secret chat. in_seq_no = %d, expect_seq_no = %d\n", in_seq_no / 2, P->encr_chat.in_seq_no);
drop = 1;
}
if ((in_seq_no & 1) != 1 - (P->encr_chat.admin_id == tgl_state.our_id) ||
@ -1272,9 +1268,21 @@ void tglf_fetch_encrypted_message (struct tgl_message *M) {
}
//vlogprintf (E_WARNING, "in = %d, out = %d\n", in_seq_no, out_seq_no);
//P->encr_chat.in_seq_no = in_seq_no / 2;
x = fetch_int ();
}
assert (x == CODE_decrypted_message || x == CODE_decrypted_message_service || x == CODE_decrypted_message_l16 || x == CODE_decrypted_message_service_l16);
//assert (id == fetch_long ());
long long new_id = fetch_long ();
if (P && P->encr_chat.layer >= 17) {
assert (new_id == id);
}
if (x == CODE_decrypted_message || x == CODE_decrypted_message_service) {
if (x == CODE_decrypted_message) {
fetch_int (); // ttl
}
} else {
ll = prefetch_strlen ();
fetch_str (ll); // random_bytes
}
if (x == CODE_decrypted_message || x == CODE_decrypted_message_l16) {
l = prefetch_strlen ();
@ -1285,8 +1293,8 @@ void tglf_fetch_encrypted_message (struct tgl_message *M) {
} else {
start = in_ptr;
if (skip_type_any (TYPE_TO_PARAM (decrypted_message_action)) < 0) {
vlogprintf (E_ERROR, "Skipped %ld int out of %ld. Magic = 0x%08x\n", (long)(in_ptr - start), (long)(in_end - start), *start);
assert (0);
vlogprintf (E_ERROR, "Can not decrypt: Skipped %ld int out of %ld. Magic = 0x%08x\n", (long)(in_ptr - start), (long)(in_end - start), *start);
drop = 1;
}
end = in_ptr;
}
@ -1320,7 +1328,9 @@ void tglf_fetch_encrypted_message (struct tgl_message *M) {
}
}
if (!drop) {
bl_do_encr_chat_update_seq ((void *)P, in_seq_no / 2, out_seq_no / 2);
if (in_seq_no >= 0 && out_seq_no >= 0) {
bl_do_encr_chat_update_seq ((void *)P, in_seq_no / 2 + 1, out_seq_no / 2);
}
}
}