╭─────────────╮ │scroll to top│ ╰─────────────╯ ╭ serve_ssh_protocol.zig ───────────────────────────────────────╮ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ╰───────────────────────────────────────────────────────────────╯
🬐 🬠 🬞🬂🬏 🬟 🬑 🬟 🬑 ╭03aedad0..╮ 03aedad0.. haxy: 🬋🬋🬋 🬋🬋🬋 🬋 🬋 │files │ commits refs discuss issues patches new login 🬐 🬠 🬐 🬠 🬑 🬟 🬰 ╰──────────╯ (701) user
╭────╮ ╭ clone ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╮ │http│ ssh │ │ ╰────╯ ╰ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─╯
.. embed/ event/ test/ ui/ command.zig diff3.zig event.zig find.zig fork.zig lib.zig main.zig main_wasm.zig markdown.zig notify.zig patch.zig progress.zig push.zig search.zig search_commit.zig search_thread.zig serve.zig serve_common.zig serve_http.zig serve_ssh.zig ╭─────────────────────────────────╮ │serve_ssh_protocol.zig │ ╰─────────────────────────────────╯ test.zig testnet.zig try.zig ui.zig web.zig
2226 const add = budget - ch.local_window; 2227 ch.local_window += add; 2228 var packet: [9]u8 = undefined; 2229 packet[0] = SSH_MSG_CHANNEL_WINDOW_ADJUST; 2230 std.mem.writeInt(u32, packet[1..5], ch.remote_id, .big); 2231 std.mem.writeInt(u32, packet[5..9], add, .big); 2232 try conn.writePacket(&.{&packet}); 2233 } 2234 2235 pub fn writeU32(buf: *std.ArrayList(u8), allocator: std.mem.Allocator, value: u32) !void { 2236 var bytes: [4]u8 = undefined; 2237 std.mem.writeInt(u32, &bytes, value, .big); 2238 try buf.appendSlice(allocator, &bytes); 2239 } 2240 2241 test "pty dimensions have bounded axes, preserving normal and zero sizes" { 2242 for ([_]struct { width: u32, height: u32, expected: PtySize }{ 2243 .{ .width = 80, .height = 24, .expected = .{ .width_cells = 80, .height_cells = 24 } }, 2244 .{ .width = 0, .height = 0, .expected = .{ .width_cells = 0, .height_cells = 0 } }, 2245 .{ .width = 0xffffffff, .height = 0xffffffff, .expected = .{ .width_cells = 512, .height_cells = 128 } }, 2246 }) |case| { 2247 var bytes: [8]u8 = undefined; 2248 std.mem.writeInt(u32, bytes[0..4], case.width, .big); 2249 std.mem.writeInt(u32, bytes[4..8], case.height, .big); 2250 var reader = std.Io.Reader.fixed(&bytes); 2251 try std.testing.expectEqual(case.expected, try takePtySize(&reader)); 2252 } 2253 } 2254 2255 test "channel close before shell or exec is acknowledged" { 2256 const io = std.testing.io; 2257 const allocator = std.testing.allocator; 2258 const key: [64]u8 = @splat(0x5a); 2259 var encoded: [256]u8 = undefined; 2260 var encoded_writer = std.Io.Writer.fixed(&encoded); 2261 var sender = Cipher.init(&key, 0); 2262 var open: std.ArrayList(u8) = .empty; 2263 defer open.deinit(allocator); 2264 try open.append(allocator, SSH_MSG_CHANNEL_OPEN); 2265 try writeStringField(&open, allocator, "session"); 2266 try writeU32(&open, allocator, 7); 2267 try writeU32(&open, allocator, 32768); 2268 try writeU32(&open, allocator, 32768); 2269 try sender.writePacket(io, &encoded_writer, &.{open.items}); 2270 try sender.writePacket(io, &encoded_writer, &.{&.{ SSH_MSG_CHANNEL_CLOSE, 0, 0, 0, 0 }}); 2271 var reader = std.Io.Reader.fixed(encoded_writer.buffered()); 2272 var output: [256]u8 = undefined; 2273 var writer = std.Io.Writer.fixed(&output); 2274 var idle = IdleState{}; 2275 var conn = Conn{ 2276 .io = io, 2277 .allocator = allocator, 2278 .reader = &reader, 2279 .writer = &writer, 2280 .cs_cipher = Cipher.init(&key, 0), 2281 .sc_cipher = Cipher.init(&key, 0), 2282 .rekey = undefined, 2283 .idle = &idle, 2284 }; 2285 const Handler = struct { 2286 pub fn handleSession(_: *@This(), _: *SessionCtx, _: Request) !void { 2287 return error.UnexpectedSession; 2288 } 2289 }; 2290 var handler = Handler{}; 2291 try runChannelLayer(&conn, &.{ .fingerprint = @splat(0), .blob = "" }, &handler); 2292 var output_reader = std.Io.Reader.fixed(writer.buffered()); 2293 var receiver = Cipher.init(&key, 0); 2294 const confirmation = try receiver.readPacket(allocator, &output_reader); 2295 defer allocator.free(confirmation); 2296 try std.testing.expectEqual(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, confirmation[0]); 2297 const close = try receiver.readPacket(allocator, &output_reader); 2298 defer allocator.free(close); 2299 try std.testing.expectEqualSlices(u8, &.{ SSH_MSG_CHANNEL_CLOSE, 0, 0, 0, 7 }, close); 2300 try std.testing.expectEqual(0, output_reader.buffered().len); 2301 } 2302