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Merge pull request 'netenv: add redirectBroadcast toggle and stop broadcast log spam' (#104) from Gl0w1amp/segatools:feature/netenv-broadcast-toggle into develop

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Reviewed-on: https://gitea.tendokyu.moe/TeamTofuShop/segatools/pulls/104
This commit is contained in:
Hay1tsme
2026-06-23 00:45:43 +00:00
parent 89cd55196f c3af3ced3a
commit fb71dab20e
4 changed files with 36 additions and 3 deletions
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common/platform/config.c
+5
View File
@@ -189,6 +189,11 @@ void netenv_config_load(struct netenv_config *cfg, const wchar_t *filename)
memset(cfg, 0, sizeof(*cfg));
cfg->enable = GetPrivateProfileIntW(L"netenv", L"enable", 0, filename);
cfg->redirect_broadcast = GetPrivateProfileIntW(
L"netenv",
L"redirectBroadcast",
1,
filename);
cfg->addr_suffix = GetPrivateProfileIntW(
L"netenv",
common/platform/netenv.c
+22 -3
View File
@@ -165,6 +165,10 @@ static uint32_t netenv_ip_bcast;
static uint32_t netenv_ip_iface;
static uint32_t netenv_ip_router;
static uint8_t netenv_mac_addr[6];
static bool netenv_redirect_broadcast;
static uint32_t netenv_last_logged_broadcast_src;
static uint32_t netenv_last_logged_broadcast_dest;
static bool netenv_broadcast_logged;
HRESULT netenv_hook_init(
const struct netenv_config *cfg,
@@ -188,6 +192,7 @@ HRESULT netenv_hook_init(
netenv_ip_iface = kc_cfg->subnet | cfg->addr_suffix;
netenv_ip_router = kc_cfg->subnet | cfg->router_suffix;
memcpy(netenv_mac_addr, cfg->mac_addr, sizeof(netenv_mac_addr));
netenv_redirect_broadcast = cfg->redirect_broadcast;
netenv_hook_apply_hooks(NULL);
@@ -567,6 +572,10 @@ static int WINAPI hook_sendto(
const struct sockaddr_in* original_to = (struct sockaddr_in*)to;
if (!netenv_redirect_broadcast) {
return next_sendto(s, buf, len, flags, to, tolen);
}
uint32_t bc_addr = _byteswap_ulong(netenv_ip_prefix | 0xFF);
if (original_to->sin_addr.S_un.S_addr == bc_addr) {
@@ -574,9 +583,19 @@ static int WINAPI hook_sendto(
uint32_t src_addr = _byteswap_ulong(original_to->sin_addr.S_un.S_addr);
uint32_t dest_addr = _byteswap_ulong(netenv_ip_bcast);
dprintf("Netenv: sendTo broadcast %u.%u.%u.%u -> %u.%u.%u.%u\n",
(src_addr >> 24) & 0xff, (src_addr >> 16) & 0xff, (src_addr >> 8) & 0xff, src_addr & 0xff,
(dest_addr >> 24) & 0xff, (dest_addr >> 16) & 0xff, (dest_addr >> 8) & 0xff, dest_addr & 0xff);
// Only log the first broadcast packet for each unique source/destination pair,
// to avoid spamming the log with ARP packets and such
if (!netenv_broadcast_logged ||
netenv_last_logged_broadcast_src != src_addr ||
netenv_last_logged_broadcast_dest != dest_addr) {
dprintf("Netenv: sendTo broadcast %u.%u.%u.%u -> %u.%u.%u.%u\n",
(src_addr >> 24) & 0xff, (src_addr >> 16) & 0xff, (src_addr >> 8) & 0xff, src_addr & 0xff,
(dest_addr >> 24) & 0xff, (dest_addr >> 16) & 0xff, (dest_addr >> 8) & 0xff, dest_addr & 0xff);
netenv_last_logged_broadcast_src = src_addr;
netenv_last_logged_broadcast_dest = dest_addr;
netenv_broadcast_logged = true;
}
struct sockaddr_in modified_to = {0};
memcpy(&modified_to, original_to, tolen);
common/platform/netenv.h
+1
View File
@@ -9,6 +9,7 @@
struct netenv_config {
bool enable;
bool redirect_broadcast;
uint8_t addr_suffix;
uint8_t router_suffix;
uint8_t mac_addr[6];