/** * Create a rendezvous "init recv" packet and send it on its merry way. * This is the first packet sent to the proxy server by the second client * involved in this rendezvous proxy session. * * @param conn The peer connection. * @param pin The 2 byte PIN sent to us by the other user. This acts * as our passcode when establishing the proxy session. */ static void peer_proxy_send_join_existing_conn(PeerConnection *conn, guint16 pin) { ProxyFrame frame; PurpleAccount *account; const gchar *bn; guint8 bn_length; memset(&frame, 0, sizeof(ProxyFrame)); frame.type = PEER_PROXY_TYPE_JOIN; frame.flags = 0x0000; account = purple_connection_get_account(conn->od->gc); bn = purple_account_get_username(account); bn_length = strlen(bn); byte_stream_new(&frame.payload, 1 + bn_length + 2 + 8 + 20); byte_stream_put8(&frame.payload, bn_length); byte_stream_putraw(&frame.payload, (const guint8 *)bn, bn_length); byte_stream_put16(&frame.payload, pin); byte_stream_putraw(&frame.payload, conn->cookie, 8); byte_stream_put16(&frame.payload, 0x0001); /* Type */ byte_stream_put16(&frame.payload, 16); /* Length */ byte_stream_putcaps(&frame.payload, conn->type); /* Value */ peer_proxy_send(conn, &frame); }
static void peer_proxy_send(PeerConnection *conn, ProxyFrame *frame) { size_t length; ByteStream bs; purple_debug_info("oscar", "Outgoing peer proxy frame with " "type=0x%04hx, unknown=0x%08x, " "flags=0x%04hx, and payload length=%hd\n", frame->type, frame->unknown, frame->flags, frame->payload.len); length = 12 + frame->payload.len; byte_stream_new(&bs, length); byte_stream_put16(&bs, length - 2); byte_stream_put16(&bs, PEER_PROXY_PACKET_VERSION); byte_stream_put16(&bs, frame->type); byte_stream_put32(&bs, frame->unknown); byte_stream_put16(&bs, frame->flags); byte_stream_putraw(&bs, frame->payload.data, frame->payload.len); peer_connection_send(conn, &bs); byte_stream_destroy(&bs); }
/** * Write the given OdcFrame to a ByteStream and send it out * on the established PeerConnection. */ static void peer_odc_send(PeerConnection *conn, OdcFrame *frame) { GaimAccount *account; const char *username; size_t length; ByteStream bs; gaim_debug_info("oscar", "Outgoing ODC frame to %s with " "type=0x%04x, flags=0x%04x, payload length=%u\n", conn->sn, frame->type, frame->flags, frame->payload.len); account = gaim_connection_get_account(conn->od->gc); username = gaim_account_get_username(account); memcpy(frame->sn, username, strlen(username)); memcpy(frame->cookie, conn->cookie, 8); length = 76; byte_stream_new(&bs, length + frame->payload.len); byte_stream_putraw(&bs, conn->magic, 4); byte_stream_put16(&bs, length); byte_stream_put16(&bs, frame->type); byte_stream_put16(&bs, frame->subtype); byte_stream_put16(&bs, 0x0000); byte_stream_putraw(&bs, frame->cookie, 8); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, 0x0000); byte_stream_put32(&bs, frame->payload.len); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, frame->encoding); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, frame->flags); byte_stream_put16(&bs, 0x0000); byte_stream_put16(&bs, 0x0000); byte_stream_putraw(&bs, frame->sn, 32); byte_stream_putraw(&bs, frame->payload.data, frame->payload.len); peer_connection_send(conn, &bs); g_free(bs.data); }
int byte_stream_putcaps(ByteStream *bs, guint64 caps) { int i; if (!bs) return -EINVAL; for (i = 0; byte_stream_bytes_left(bs); i++) { if (aim_caps[i].flag == OSCAR_CAPABILITY_LAST) break; if (caps & aim_caps[i].flag) byte_stream_putraw(bs, aim_caps[i].data, 0x10); } return 0; }
/** * Send client-to-client IM over an established direct connection. * To send a direct IM, call this just like you would aim_send_im. * * @param conn The already-connected ODC connection. * @param msg Null-terminated string to send. * @param len The length of the message to send, including binary data. * @param encoding See the AIM_CHARSET_* defines in oscar.h * @param autoreply TRUE if this is any auto-reply. */ void peer_odc_send_im(PeerConnection *conn, const char *msg, int len, int encoding, gboolean autoreply) { OdcFrame frame; g_return_if_fail(msg != NULL); g_return_if_fail(len > 0); memset(&frame, 0, sizeof(OdcFrame)); frame.type = 0x0001; frame.subtype = 0x0006; frame.payload.len = len; frame.encoding = encoding; frame.flags = autoreply; byte_stream_new(&frame.payload, len); byte_stream_putraw(&frame.payload, (guint8 *)msg, len); peer_odc_send(conn, &frame); g_free(frame.payload.data); }
int byte_stream_putstr(ByteStream *bs, const char *str) { return byte_stream_putraw(bs, (guint8 *)str, strlen(str)); }
/* * Subtype 0x0005 - Send a Chat Message. * * Possible flags: * AIM_CHATFLAGS_NOREFLECT -- Unset the flag that requests messages * should be sent to their sender. * AIM_CHATFLAGS_AWAY -- Mark the message as an autoresponse * (Note that WinAIM does not honor this, * and displays the message as normal.) * * XXX convert this to use tlvchains */ int aim_chat_send_im(OscarData *od, FlapConnection *conn, guint16 flags, const gchar *msg, int msglen, const char *encoding, const char *language) { int i; ByteStream bs; IcbmCookie *cookie; aim_snacid_t snacid; guint8 ckstr[8]; GSList *tlvlist = NULL, *inner_tlvlist = NULL; if (!od || !conn || !msg || (msglen <= 0)) return 0; byte_stream_new(&bs, 1142); snacid = aim_cachesnac(od, SNAC_FAMILY_CHAT, 0x0005, 0x0000, NULL, 0); /* * Cookie * * XXX mkcookie should generate the cookie and cache it in one * operation to preserve uniqueness. */ for (i = 0; i < 8; i++) ckstr[i] = (guint8)rand(); cookie = aim_mkcookie(ckstr, AIM_COOKIETYPE_CHAT, NULL); cookie->data = NULL; /* XXX store something useful here */ aim_cachecookie(od, cookie); /* ICBM Header */ byte_stream_putraw(&bs, ckstr, 8); /* Cookie */ byte_stream_put16(&bs, 0x0003); /* Channel */ /* * Type 1: Flag meaning this message is destined to the room. */ aim_tlvlist_add_noval(&tlvlist, 0x0001); /* * Type 6: Reflect */ if (!(flags & AIM_CHATFLAGS_NOREFLECT)) aim_tlvlist_add_noval(&tlvlist, 0x0006); /* * Type 7: Autoresponse */ if (flags & AIM_CHATFLAGS_AWAY) aim_tlvlist_add_noval(&tlvlist, 0x0007); /* * SubTLV: Type 1: Message */ aim_tlvlist_add_raw(&inner_tlvlist, 0x0001, msglen, (guchar *)msg); /* * SubTLV: Type 2: Encoding */ if (encoding != NULL) aim_tlvlist_add_str(&inner_tlvlist, 0x0002, encoding); /* * SubTLV: Type 3: Language */ if (language != NULL) aim_tlvlist_add_str(&inner_tlvlist, 0x0003, language); /* * Type 5: Message block. Contains more TLVs. * * This could include other information... We just * put in a message TLV however. * */ aim_tlvlist_add_frozentlvlist(&tlvlist, 0x0005, &inner_tlvlist); aim_tlvlist_write(&bs, &tlvlist); aim_tlvlist_free(inner_tlvlist); aim_tlvlist_free(tlvlist); flap_connection_send_snac(od, conn, SNAC_FAMILY_CHAT, 0x0005, snacid, &bs); byte_stream_destroy(&bs); return 0; }