From 59b801dfe3b170e734ff19c037ff7387cc2457c1 Mon Sep 17 00:00:00 2001 From: Pakin Date: Mon, 25 Aug 2025 09:42:57 +0700 Subject: [PATCH] initialize, try dev on linux --- .gitignore | 1 + Cargo.lock | 638 ++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 21 ++ src/adb.rs | 32 +++ src/backend/mod.rs | 2 + src/backend/ptrace.rs | 29 ++ src/broadcaster.rs | 17 ++ src/config.rs | 43 +++ src/main.rs | 9 + src/rule.rs | 49 ++++ 10 files changed, 841 insertions(+) create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 src/adb.rs create mode 100644 src/backend/mod.rs create mode 100644 src/backend/ptrace.rs create mode 100644 src/broadcaster.rs create mode 100644 src/config.rs create mode 100644 src/main.rs create mode 100644 src/rule.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 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+tracing-subscriber = { version = "0.3.19", features = ["fmt", "ansi"] } + +[features] +default = ["ptrace"] +ptrace = [] \ No newline at end of file diff --git a/src/adb.rs b/src/adb.rs new file mode 100644 index 0000000..fef0089 --- /dev/null +++ b/src/adb.rs @@ -0,0 +1,32 @@ +use bytes::{Buf, BytesMut}; + +// little endian "OPEN" +pub const CMD_OPEN: u32 = u32::from_le_bytes(*b"NEPO"); + +pub struct AdbFrame { + pub cmd: u32, + pub payload: Vec, +} + +pub fn try_parse(buf: &mut BytesMut) -> Option { + loop { + if buf.len() < 24 { + return None; + } + // header + let hdr = &buf[..24]; + let cmd = u32::from_le_bytes(hdr[0..4].try_into().unwrap()); + let data_len = u32::from_le_bytes(hdr[12..16].try_into().unwrap()) as usize; + let magic = u32::from_le_bytes(hdr[20..24].try_into().unwrap()); + if (cmd ^ 0xFFFF_FFFF) != magic { + buf.advance(1); + continue; + } + if buf.len() < 24 + data_len { + return None; + } + let payload = buf[24..24 + data_len].to_vec(); + buf.advance(24 + data_len); + return Some(AdbFrame { cmd, payload }); + } +} diff --git a/src/backend/mod.rs b/src/backend/mod.rs new file mode 100644 index 0000000..4749214 --- /dev/null +++ b/src/backend/mod.rs @@ -0,0 +1,2 @@ +#[cfg(all(feature = "ptrace", target_arch = "aarch64"))] +pub mod ptrace; diff --git a/src/backend/ptrace.rs b/src/backend/ptrace.rs new file mode 100644 index 0000000..b183ca2 --- /dev/null +++ b/src/backend/ptrace.rs @@ -0,0 +1,29 @@ +use crate::{adb, broadcaster, rule::RuleSet}; +use anyhow::Result; +use bytes::BytesMut; +use nix::{ + libc, + sys::{ + ptrace, + signal::Signal, + wait::{WaitPidFlag, WaitStatus, waitpid}, + }, + unistd::Pid, +}; +use std::{ + collections::HashMap, + time::{Duration, Instant}, +}; + +const PTRACE_GETREGSET_FALLBACK: i32 = 0x4204; +const NT_PRSTATUS_FALLBACK: i32 = 1; + +#[cfg(target_arch = "aarch64")] +#[repr(C)] +#[derive(Clone, Copy, Default)] +struct UserAtRegs { + regs: [u64; 31], + sp: u64, + pc: u64, + pstate: u64, +} diff --git a/src/broadcaster.rs b/src/broadcaster.rs new file mode 100644 index 0000000..6074f08 --- /dev/null +++ b/src/broadcaster.rs @@ -0,0 +1,17 @@ +use std::process::Command; + +pub fn broadcast(action: &str, service: &str, rule: &str) { + let _ = Command::new("am") + .args([ + "broadcast", + "-a", + action, + "--es", + "service", + service, + "--es", + "rule", + rule, + ]) + .status(); +} diff --git a/src/config.rs b/src/config.rs new file mode 100644 index 0000000..cec3bef --- /dev/null +++ b/src/config.rs @@ -0,0 +1,43 @@ +use anyhow::Ok; +use serde::Deserialize; +use std::{fs, time::Duration}; + +#[derive(Debug, Deserialize, Clone)] +pub struct Rule { + pub name: String, + pub when: String, + #[serde(default)] + pub contains: Vec, + #[serde(default)] + pub pattern: Option, +} + +#[derive(Debug, Deserialize, Clone)] +pub struct Config { + #[serde(default = "default_debounce")] + pub debounce_ms: u64, + #[serde(default = "default_peek")] + pub max_payload_peek: usize, + pub broadcast_action: String, + #[serde(default)] + pub rules: Vec, +} + +fn default_debounce() -> u64 { + 3000 +} + +fn default_peek() -> usize { + 256 +} + +impl Config { + pub fn load(path: &str) -> anyhow::Result { + let s = fs::read_to_string(path)?; + Ok(serde_json::from_str(&s)?) + } + + pub fn debounce(&self) -> Duration { + Duration::from_millis(self.debounce_ms) + } +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..3fb6ac7 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,9 @@ +mod adb; +mod backend; +mod broadcaster; +mod config; +mod rule; + +fn main() { + println!("Hello, world!"); +} diff --git a/src/rule.rs b/src/rule.rs new file mode 100644 index 0000000..7bed5b8 --- /dev/null +++ b/src/rule.rs @@ -0,0 +1,49 @@ +use crate::config::{Config, Rule}; + +use regex::Regex; + +pub struct CompiledRule { + pub name: String, + pub contains: Vec, + pub pattern: Option, +} + +pub struct RuleSet { + rules: Vec, +} + +impl RuleSet { + pub fn from_cfg(cfg: &Config) -> Self { + let mut v = Vec::new(); + for r in &cfg.rules { + let re = match &r.pattern { + Some(p) => Some(Regex::new(p).unwrap()), + None => None, + }; + v.push(CompiledRule { + name: r.name.clone(), + contains: r.contains.clone(), + pattern: re, + }); + } + + Self { rules: v } + } + + pub fn match_service<'a>(&'a self, service: &str) -> Option<&'a str> { + 'outer: for r in &self.rules { + for c in &r.contains { + if !service.contains(c) { + continue 'outer; + } + } + if let Some(re) = &r.pattern { + if !re.is_match(service) { + continue; + } + } + return Some(&r.name); + } + None + } +}