geph5_client/
lib.rs

1use std::ffi::c_char;
2use std::ffi::c_int;
3use std::ffi::CStr;
4use std::io::Write;
5
6pub use broker::broker_client;
7pub use broker::BrokerSource;
8use bytes::Bytes;
9pub use client::Client;
10pub use client::{BridgeMode, BrokerKeys, Config};
11pub use control_prot::{ConnInfo, ControlClient};
12pub use get_dialer::ExitConstraint;
13use nanorpc::JrpcRequest;
14use nanorpc::RpcTransport;
15use once_cell::sync::OnceCell;
16
17mod auth;
18mod broker;
19mod china;
20mod client;
21mod client_inner;
22mod control_prot;
23mod database;
24mod device_metadata;
25mod http_proxy;
26mod litecopy;
27pub mod logging;
28
29mod get_dialer;
30mod pac;
31mod socks5;
32mod spoof_dns;
33mod stats;
34mod taskpool;
35mod traffcount;
36mod updates;
37mod vpn;
38
39// C interface
40
41static CLIENT: OnceCell<Client> = OnceCell::new();
42
43#[no_mangle]
44pub unsafe extern "C" fn start_client(cfg: *const c_char) -> libc::c_int {
45    let cfg_str = unsafe { CStr::from_ptr(cfg) }.to_str().unwrap();
46    let cfg: Config = serde_json::from_str(cfg_str).unwrap();
47
48    CLIENT.get_or_init(|| Client::start(cfg));
49
50    0
51}
52
53#[no_mangle]
54pub unsafe extern "C" fn daemon_rpc(
55    jrpc_req: *const c_char,
56    out_buf: *mut c_char,
57    out_buflen: c_int,
58) -> c_int {
59    let req_str = unsafe { CStr::from_ptr(jrpc_req) }.to_str().unwrap();
60    let jrpc: JrpcRequest = serde_json::from_str(req_str).unwrap();
61
62    if let Some(client) = CLIENT.get() {
63        let ctrl = client.control_client().0;
64        if let Ok(response) = smolscale::block_on(async move { ctrl.call_raw(jrpc).await }) {
65            let response_json = serde_json::to_string(&response).unwrap();
66            let response_c = std::ffi::CString::new(response_json).unwrap();
67            let bytes = response_c.as_bytes_with_nul();
68
69            unsafe { fill_buffer(out_buf, out_buflen, bytes) }
70        } else {
71            -2 // jrpc error
72        }
73    } else {
74        -1 // daemon not started
75    }
76}
77
78#[no_mangle]
79pub unsafe extern "C" fn send_pkt(pkt: *const c_char, pkt_len: c_int) -> c_int {
80    let slice: &'static [u8] = std::slice::from_raw_parts(pkt as *mut u8, pkt_len as usize);
81    if let Some(client) = CLIENT.get() {
82        if let Ok(_) = smol::future::block_on(client.send_vpn_packet(Bytes::copy_from_slice(slice)))
83        {
84            return 0;
85        }
86    }
87    -1
88}
89
90#[no_mangle]
91pub unsafe extern "C" fn recv_pkt(out_buf: *mut c_char, out_buflen: c_int) -> c_int {
92    if let Some(client) = CLIENT.get() {
93        if let Ok(pkt) = smol::future::block_on(client.recv_vpn_packet()) {
94            return fill_buffer(out_buf, out_buflen, &pkt);
95        }
96    }
97    -1
98}
99
100unsafe fn fill_buffer(buffer: *mut c_char, buflen: c_int, output: &[u8]) -> c_int {
101    let mut slice = std::slice::from_raw_parts_mut(buffer as *mut u8, buflen as usize);
102    if output.len() < slice.len() {
103        if slice.write_all(output).is_err() {
104            tracing::debug!("writing to buffer failed!");
105            -4
106        } else {
107            output.len() as c_int
108        }
109    } else {
110        tracing::debug!(" buffer not big enough!");
111        -3
112    }
113}
114
115#[cfg(test)]
116mod tests {
117    use smol::Timer;
118
119    use super::*;
120    use std::{
121        ffi::CString,
122        net::{Ipv4Addr, SocketAddr},
123    };
124
125    const CONTROL_ADDR: SocketAddr =
126        SocketAddr::new(std::net::IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 12222);
127
128    pub const PAC_ADDR: SocketAddr =
129        SocketAddr::new(std::net::IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 12223);
130
131    const SOCKS5_ADDR: SocketAddr =
132        SocketAddr::new(std::net::IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 9909);
133
134    pub const HTTP_ADDR: SocketAddr =
135        SocketAddr::new(std::net::IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 9910);
136
137    #[test]
138    fn test_clib() {
139        let cfg = super::Config {
140            // These fields are the base defaults:
141            socks5_listen: Some(SOCKS5_ADDR),
142            http_proxy_listen: Some(HTTP_ADDR),
143            control_listen: Some(CONTROL_ADDR),
144            exit_constraint: super::ExitConstraint::Auto,
145            bridge_mode: BridgeMode::Auto,
146            cache: None,
147            vpn_fd: None,
148            broker: Some(BrokerSource::Race(vec![
149                BrokerSource::Fronted {
150                    front: "https://www.cdn77.com/".into(),
151                    host: "1826209743.rsc.cdn77.org".into(),
152                },
153                BrokerSource::Fronted {
154                    front: "https://vuejs.org/".into(),
155                    host: "svitania-naidallszei-2.netlify.app".into(),
156                },
157            ])),
158            broker_keys: Some(BrokerKeys {
159                master: "88c1d2d4197bed815b01a22cadfc6c35aa246dddb553682037a118aebfaa3954".into(),
160                mizaru_free: "0558216cbab7a9c46f298f4c26e171add9af87d0694988b8a8fe52ee932aa754"
161                    .into(),
162                mizaru_plus: "cf6f58868c6d9459b3a63bc2bd86165631b3e916bad7f62b578cd9614e0bcb3b"
163                    .into(),
164            }),
165            // Values that can be overridden by `args`:
166            vpn: false,
167            spoof_dns: false,
168            passthrough_china: false,
169            dry_run: false,
170            credentials: geph5_broker_protocol::Credential::Secret(String::new()),
171            sess_metadata: Default::default(),
172            task_limit: None,
173            pac_listen: Some(PAC_ADDR),
174        };
175        let cfg_str = CString::new(serde_json::to_string(&cfg).unwrap()).unwrap();
176        let cfg_ptr = cfg_str.as_ptr();
177
178        let start_client_ret = unsafe { start_client(cfg_ptr) };
179        assert!(start_client_ret == 0);
180
181        // call daemon_rpc;
182        for _ in 0..2 {
183            let jrpc_req = JrpcRequest {
184                jsonrpc: "2.0".into(),
185                method: "user_info".into(),
186                params: [].into(),
187                id: nanorpc::JrpcId::Number(1),
188            };
189            let jrpc_req_str = CString::new(serde_json::to_string(&jrpc_req).unwrap()).unwrap();
190            let jrpc_req_ptr = jrpc_req_str.as_ptr();
191            // Allocate a buffer for the response
192            let mut out_buf = vec![0; 1024 * 128]; // Adjust size as needed
193            let out_buf_ptr = out_buf.as_mut_ptr();
194
195            let rpc_ret = unsafe { daemon_rpc(jrpc_req_ptr, out_buf_ptr, out_buf.len() as _) };
196            println!("daemon_rpc retcode = {rpc_ret}");
197            assert!(rpc_ret >= 0);
198            let output = unsafe { CStr::from_ptr(out_buf_ptr) }.to_str().unwrap();
199            println!("daemon_rpc output = {output}");
200            smolscale::block_on(async { Timer::after(std::time::Duration::from_secs(1)).await });
201        }
202    }
203}
geph5_client/lib.rs

geph5_client/
lib.rs
