diff --git a/src/modules/mod_bitchat_mesh.c b/src/modules/mod_bitchat_mesh.c deleted file mode 100755 index cf56ade..0000000 --- a/src/modules/mod_bitchat_mesh.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * mod_bitchat_mesh.c -- OreBolt OS bitchat mesh networking module - * ==================================================================== - * - * SPDX-License-Identifier: AGPL-3.0-only - * - * Copyright (C) 2026 OreBolt OS Contributors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published - * by the Free Software Foundation, version 3. - * - * 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - * - * -------------------------------------------------------------------- - * - * WHY AGPL FOR THE BITCHAT LAYER? - * - * The bitchat mesh layer is the part of OreBolt OS that runs as a - * networked service: nodes exchange messages with other nodes, and any - * user interacting with a bitchat node over the mesh is effectively - * interacting with the software "over a network" within the meaning of - * AGPL v3 §13. AGPL v3 closes the SaaS loophole that GPL leaves open: - * - * * If someone forks this module, runs it on a modified bitchat node, - * and lets other users interact with that node over the mesh, they - * MUST make their modified source available to those users via the - * "Written Offer" mechanism in §13(d). Pure GPL would not require - * this for network-only interaction. - * - * * AGPL v3 §6 (User Product) also blocks tivoization on the device - * itself: the H2 firmware must allow installation of modified - * versions of bitchat.mod. This is exactly what we want for a - * hackable pocket rig -- users own the device they carry. - * - * * The AGPL boundary is clean: bitchat is a single .mod binary that - * links against liblvgl.so (MIT) and liborebolt.a (GPL-2.0-or-later). - * Under AGPL v3 §13, the AGPL covers the bitchat module itself and - * its modifications; it does NOT retroactively relicense the rest - * of OreBolt OS because the rest of OreBolt OS is NOT a derivative work - * of bitchat (bitchat links TO them, not the other way around). - * See LICENSE.md §4 for the full boundary analysis. - * - * If you modify this file, you MUST: - * 1. Keep this license header. - * 2. Make your modified source available to anyone who interacts with - * your modified bitchat node over the mesh (AGPL v3 §13). - * 3. Bump the BITCHAT_PROTOCOL_VERSION if you change the wire format. - * - * The build system enforces an AGPL_BITCHAT preprocessor define so the - * running binary self-identifies (see build.sh Phase 7 verify step). - * -------------------------------------------------------------------- - */ - -#ifdef AGPL_BITCHAT - -#include -#include -#include - -#include "h2_ui.h" -#include "log_manager.h" -#include "panic_purge_api.h" - -#define BITCHAT_PROTOCOL_VERSION 1 -#define BITCHAT_LICENSE_STRING "AGPL-3.0-only" -#define BITCHAT_SOURCE_URL "https://example.invalid/orebolt-bitchat-src" -/* ^ Replace with the actual Written Offer URL before shipping. AGPL v3 §13(d). */ - -/* Mesh message types -- wire format is little-endian, packed. */ -typedef enum { - BITCHAT_MSG_HELLO = 0x01, - BITCHAT_MSG_ACK = 0x02, - BITCHAT_MSG_BROADCAST= 0x03, - BITCHAT_MSG_DIRECT = 0x04, - BITCHAT_MSG_PURGE = 0xFE, /* used by panic_purge_api.h */ - BITCHAT_MSG_LICENSE = 0xFF /* AGPL v3 §13 -- advertise source URL */ -} bitchat_msg_type_t; - -#pragma pack(push, 1) -typedef struct { - uint8_t magic[4]; /* "BTCH" */ - uint8_t protocol_ver; - uint8_t msg_type; - uint16_t payload_len; - uint32_t sender_id; - uint32_t timestamp; - /* payload follows */ -} bitchat_hdr_t; -#pragma pack(pop) - -#define BITCHAT_MAGIC ((uint8_t[]) {'B','T','C','H'}) - -static lv_obj_t *bitchat_screen = NULL; -static lv_obj_t *bitchat_log_label = NULL; - -/* Build a license-advertisement message. Sent on every mesh HELLO so - * any user interacting with this node over the network is informed of - * their AGPL v3 §13 source-code rights. */ -static size_t bitchat_build_license_msg(uint8_t *out, size_t cap) -{ - const char *url = BITCHAT_SOURCE_URL; - size_t url_len = strlen(url); - if (cap < sizeof(bitchat_hdr_t) + url_len + 1) return 0; - - bitchat_hdr_t *h = (bitchat_hdr_t*)out; - memcpy(h->magic, BITCHAT_MAGIC, 4); - h->protocol_ver = BITCHAT_PROTOCOL_VERSION; - h->msg_type = BITCHAT_MSG_LICENSE; - h->payload_len = (uint16_t)(url_len + 1); - h->sender_id = 0; /* TODO: device-unique ID from MAC */ - h->timestamp = 0; /* TODO: RTC */ - memcpy(out + sizeof(bitchat_hdr_t), url, url_len + 1); - return sizeof(bitchat_hdr_t) + url_len + 1; -} - -/* LVGL UI: a single screen with a scrollable log and a "Send Hello" button. */ -void bitchat_init(lv_obj_t *parent) -{ - bitchat_screen = lv_obj_create(parent); - lv_obj_set_size(bitchat_screen, H2_LCD_WIDTH - 4, H2_LCD_HEIGHT - 4); - lv_obj_center(bitchat_screen); - - bitchat_log_label = lv_label_create(bitchat_screen); - lv_label_set_text(bitchat_log_label, - "bitchat mesh v" STRINGIFY(BITCHAT_PROTOCOL_VERSION) "\n" - "License: " BITCHAT_LICENSE_STRING "\n" - "Source: " BITCHAT_SOURCE_URL "\n" - "(idle)"); - lv_obj_set_width(bitchat_log_label, H2_LCD_WIDTH - 16); - lv_label_set_long_mode(bitchat_log_label, LV_LABEL_LONG_WRAP); - - LOG_INF("bitchat init: protocol=%d license=%s", - BITCHAT_PROTOCOL_VERSION, BITCHAT_LICENSE_STRING); - - /* Advertise source URL on first mesh hello. */ - uint8_t buf[256]; - size_t n = bitchat_build_license_msg(buf, sizeof(buf)); - if (n > 0) { - /* TODO: mod_radio_input_multiplex_send(buf, n); */ - LOG_DBG("queued license-advertisement msg (%zu bytes)", n); - } -} - -void bitchat_deinit(void) -{ - if (bitchat_screen) { - lv_obj_del(bitchat_screen); - bitchat_screen = NULL; - bitchat_log_label = NULL; - } - LOG_INF("bitchat deinit"); -} - -/* Helper macro for the version string in the UI label. */ -#define STRINGIFY_(x) #x -#define STRINGIFY(x) STRINGIFY_(x) - -#else /* !AGPL_BITCHAT */ -# error "mod_bitchat_mesh.c must be compiled with -DAGPL_BITCHAT (see Makefile.orebolt-v1.5). \ - This guard prevents accidental compilation under a different license." -#endif /* AGPL_BITCHAT */