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feat: remove nonce/bootstrap from remote process IPC, use PID-only naming

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Shared memory names simplified to Local\RCX_SHM_<pid>, no bootstrap
handshake needed. Payload uses CreateTimerQueueTimer (10ms poll) instead
of a dedicated server thread.
This commit is contained in:
IChooseYou
2026-02-22 11:36:24 -07:00
parent 25aaace382
commit f651edd740
6 changed files with 124 additions and 292 deletions
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38
plugins/RemoteProcessMemory/rcx_rpc_protocol.h
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@@ -15,7 +15,6 @@
#define RCX_RPC_HEADER_SIZE 4096
#define RCX_RPC_DATA_OFFSET RCX_RPC_HEADER_SIZE
#define RCX_RPC_DATA_SIZE (RCX_RPC_SHM_SIZE - RCX_RPC_DATA_OFFSET)
#define RCX_RPC_BOOT_SIZE 64
/* status codes */
#define RCX_RPC_STATUS_OK 0
@@ -83,47 +82,32 @@ struct RcxRpcHeader {
uint8_t _pad[RCX_RPC_HEADER_SIZE - 48];
};
/* Bootstrap shm -- 64 bytes, carries the nonce from plugin to payload */
struct RcxRpcBootHeader {
uint32_t nonceLength;
char nonce[60];
};
/* ── name formatting helpers (PID-only, no nonce) ─────────────────── */
/* ── name formatting helpers ───────────────────────────────────────── */
static inline void rcx_rpc_boot_name(char* buf, int n, uint32_t pid) {
static inline void rcx_rpc_shm_name(char* buf, int n, uint32_t pid) {
#ifdef _WIN32
snprintf(buf, n, "Local\\RCX_BOOT_%u", pid);
snprintf(buf, n, "Local\\RCX_SHM_%u", pid);
#else
snprintf(buf, n, "/rcx_boot_%u", pid);
snprintf(buf, n, "/rcx_shm_%u", pid);
#endif
}
static inline void rcx_rpc_shm_name(char* buf, int n, uint32_t pid, const char* nonce) {
static inline void rcx_rpc_req_name(char* buf, int n, uint32_t pid) {
#ifdef _WIN32
snprintf(buf, n, "Local\\RCX_SHM_%u_%s", pid, nonce);
snprintf(buf, n, "Local\\RCX_REQ_%u", pid);
#else
snprintf(buf, n, "/rcx_shm_%u_%s", pid, nonce);
snprintf(buf, n, "/rcx_req_%u", pid);
#endif
}
static inline void rcx_rpc_req_name(char* buf, int n, uint32_t pid, const char* nonce) {
static inline void rcx_rpc_rsp_name(char* buf, int n, uint32_t pid) {
#ifdef _WIN32
snprintf(buf, n, "Local\\RCX_REQ_%u_%s", pid, nonce);
snprintf(buf, n, "Local\\RCX_RSP_%u", pid);
#else
snprintf(buf, n, "/rcx_req_%u_%s", pid, nonce);
#endif
}
static inline void rcx_rpc_rsp_name(char* buf, int n, uint32_t pid, const char* nonce) {
#ifdef _WIN32
snprintf(buf, n, "Local\\RCX_RSP_%u_%s", pid, nonce);
#else
snprintf(buf, n, "/rcx_rsp_%u_%s", pid, nonce);
snprintf(buf, n, "/rcx_rsp_%u", pid);
#endif
}
#ifdef __cplusplus
static_assert(sizeof(RcxRpcHeader) == RCX_RPC_HEADER_SIZE, "Header must be 4096 bytes");
static_assert(sizeof(RcxRpcBootHeader) <= RCX_RPC_BOOT_SIZE, "Boot header must fit 64 bytes");
static_assert(sizeof(RcxRpcHeader) == RCX_RPC_HEADER_SIZE, "Header must be 4096 bytes");
#endif