---
title: "TCP Packet"
---
packet-beta
0-15: "Source Port"
16-31: "Destination Port"
32-63: "Sequence Number"
64-95: "Acknowledgment Number"
96-99: "Data Offset"
100-105: "Reserved"
106: "URG"
107: "ACK"
108: "PSH"
109: "RST"
110: "SYN"
111: "FIN"
112-127: "Window"
128-143: "Checksum"
144-159: "Urgent Pointer"
160-191: "(Options and Padding)"
192-255: "Data (variable length)"
git clone https://learn.zone01dakar.sn/git/fakeita/localhost
Cloning into 'localhost'...
remote: Enumerating objects: 15, done.
remote: Enumerating objects: 549, done.
remote: Counting objects: 100% (549/549), done.
remote: Compressing objects: 100% (509/509), done.
remote: Total 549 (delta 245), reused 0 (delta 0), pack-reused 0
Receiving objects: 100% (549/549), 100.22 KiB | 1.86 MiB/s, done.
Resolving deltas: 100% (245/245), done.
cd localhost
tree --dirsfirst📂./
|
+-📂 /assets
| |
| +-🌄 ferris.svg
|
+-📂 /config
| |
| +-⚙️ server.toml
|
+-📂 /data
| |
| +-📄 data.json
|
+-📂 /templates
| |
| +-📄 error.html
| +-📄 index.html
|
+-📂 /scripts
| |
| +-📜 gitify.sh
| +-📜 utils.sh
|
+---📂 /src
| |
| +--📂 /http
| | |
| | +-📂 /request
| | | |
| | | +-📄 method.rs
| | | +-📄 mod.rs
| | | +-📄 utils.rs
| | |
| | +-📂 /response
| | | |
| | | +-📄 func.rs
| | | +-📄 mod.rs
| | |
| | +-📄 mod.rs
| |
| +-📂 /server
| | |
| | +-📂 /handler
| | | |
| | | +-📄 mod.rs
| | | +-📄 static_page.rs
| | | +-📄 web_service.rs
| | |
| | +-📄 mod.rs
| | +-📄 router.rs
| |
| +-📄 lib.rs
| +-📄 loader.rs
| +-📄 main.rs
| +-📄 mux.rs
|
+-📂 /tests
| |
| +-📄 request_test.rs
| +-📄 response_test.rs
|
+-📂 /todos
| |
| +-📝 audit.todo
| +-📝 instructions.todo
| +-📝 rules.todo
| +-📝 tasks.todo
|
+-🚫 .gitignore
+-🔒 Cargo.lock
+-⚙️ Cargo.toml
+-🔑 LICENSE
+-📖 README.md
+-⚙️ rustfmt.toml
architecture-beta
group localhost(logos:rust)[localhost]
group source(logos:rust)[source] in localhost
group servers(logos:rust)[servers] in source
group http(logos:rust)[http] in source
service config(logos:toml)[config] in localhost
service templates(logos:html-5)[templates] in localhost
service data(logos:json)[data] in localhost
service loader(logos:aws-config)[loader] in source
service multiplexer(server)[multiplexer] in source
service root(server)[root] in servers
service middlewares(logos:aws-lambda)[middlewares] in servers
service router(logos:react-router)[router] in servers
service handlers(logos:aws-step-functions)[handlers] in servers
service requests(internet)[requests] in http
service sessions(internet)[sessions] in http
service responses(internet)[responses] in http
junction builder in localhost
config:R --> L:loader
loader:R --> L:multiplexer
requests:L --> R:multiplexer
multiplexer:B --> T:root
root:R <-- L:sessions
root:L --> R:middlewares
middlewares:B --> T:router
router:R --> L:handlers
builder:T --> B:handlers
templates:L -- R:builder
data:R -- L:builder
handlers:R --> L:responses
classDiagram
%% direction LR
class From {
<<trait>>
+from(str) Self
+from(Response) String
}
class Default {
<<trait>>
+default() Self
}
class Multiplexer {
<<struct>>
+servers
+default()
+clean()
}
class Loader
<<struct>> Loader
namespace server {
class Handler {
<<trait>>
+handle(request) Response
+load_file(file_name) String
}
class Server {
<<struct>>
-host
-ports
-methods
-timeout
+run() Result
+has_valid_config() Result
+host() String
+ports() [usize]
+methods() [String]
+timeout() usize
}
class Router {
<<struct>>
+route(req, stream)
}
class WebService {
<<struct>>
+load_json() [Data]
}
class StaticPage {
<<struct>>
}
class ErrorPage {
<<struct>>
}
}
namespace http {
class Request {
<<struct>>
+method
+resource
+headers
+msg_body
}
class Method {
<<enum>>
GET
POST
DELETE
Uninitialized
}
class Resource {
<<enum>>
Path(String)
}
class Response {
<<struct>>
-status_code
-status_text
-headers
-body
+new(status_code, headers, body) Response
+send(write_stream) Result
+status_code() string
+status_text() string
+headers() String
+body() string
}
}
class Data {
<<struct>>
-id
-date
-status
}
Multiplexer ..|> Default: Implements
Request ..|> From: Implements
Response ..|> From: Implements
Response ..|> Default: Implements
Method ..|> From: Implements
Loader -- Multiplexer: Configures
Loader -- Server: Configures
Multiplexer *-- Server: Has
Server -- Request: Builds
Server -- Router: Calls
Router -- Request: Directs
Router -- Resource: Gets
Router -- Method: Checks
Router .. Handler: Calls
Handler -- Request: Handles
Handler <|.. WebService: Implements
StaticPage ..|> Handler: Implements
ErrorPage ..|> Handler: Implements
Handler -- Response: Sends
Request *-- Resource: Belongs_to
Request *-- Method: Belongs_to
WebService -- Data: Loads
Data ..* Response: Added_to
Request ..() Debug
Response ..() Debug
Response ..() PartialEq
Response ..() Clone
Method ..() Debug
Method ..() PartialEq
Resource ..() Debug
Resource ..() PartialEq
Data ..() Serialize
Data ..() Deserialize
sequenceDiagram
title TCP Connection
participant Client
participant Server
Note over Client,Server: Sequence numbers is relative.<br/>It's usually a random number.
activate Client
Client->>+Server: TCP SYN Seq=0
Server-->>Client: TCP SYN-ACK Seq=0 Ack=1
Client-->>Server: TCP ACK Seq=1 Ack=1
Note over Client,Server: Connected
loop
Client->>Server: Data Seq=1 Ack=1
Server-->>Client: Data Seq=1 Ack=2
end
Note over Client,Server: Disconnection...
Client->>Server: TCP FIN Seq=2 Ack=1
Server-->>Client: TCP ACK Seq=1 Ack=3
Server->>Client: TCP FIN Seq=1 Ack=3
Client-->>Server: TCP ACK Seq=2 Ack=2
deactivate Server
deactivate Client
Note over Client,Server: Disconnected
cargo r
Compiling memchr v2.7.4
Compiling siphasher v1.0.1
Compiling serde v1.0.217
Compiling regex-syntax v0.8.5
Compiling phf_shared v0.11.3
Compiling phf_generator v0.11.3
Compiling aho-corasick v1.1.3
Compiling phf_codegen v0.11.3
Compiling phf v0.11.3
Compiling thiserror v2.0.11
Compiling crossbeam-utils v0.8.21
Compiling regex-automata v0.4.9
Compiling libc v0.2.169
Compiling cfg-if v1.0.0
Compiling ucd-trie v0.1.7
Compiling byteorder v1.5.0
Compiling pest v2.7.15
Compiling getrandom v0.2.15
Compiling zerocopy v0.7.35
Compiling crossbeam-epoch v0.9.18
Compiling chrono-tz-build v0.3.0
Compiling bstr v1.11.3
Compiling same-file v1.0.6
Compiling log v0.4.25
Compiling unic-common v0.9.0
Compiling unic-char-range v0.9.0
Compiling unic-ucd-version v0.9.0
Compiling pest_meta v2.7.15
Compiling unic-char-property v0.9.0
Compiling globset v0.4.15
Compiling walkdir v2.5.0
Compiling chrono-tz v0.9.0
Compiling num-traits v0.2.19
Compiling ppv-lite86 v0.2.20
Compiling crossbeam-deque v0.8.6
Compiling rand_core v0.6.4
Compiling hashbrown v0.15.2
Compiling iana-time-zone v0.1.61
Compiling equivalent v1.0.2
Compiling chrono v0.4.39
Compiling rand_chacha v0.3.1
Compiling ignore v0.4.23
Compiling indexmap v2.7.1
Compiling pest_generator v2.7.15
Compiling unic-ucd-segment v0.9.0
Compiling libm v0.2.11
Compiling toml_datetime v0.6.8
Compiling serde_spanned v0.6.8
Compiling bitflags v2.8.0
Compiling itoa v1.0.14
Compiling ryu v1.0.19
Compiling deunicode v1.6.0
Compiling winnow v0.7.2
Compiling serde_json v1.0.138
Compiling globwalk v0.9.1
Compiling slug v0.1.6
Compiling humansize v2.1.3
Compiling unic-segment v0.9.0
Compiling pest_derive v2.7.15
Compiling rand v0.8.5
Compiling regex v1.11.1
Compiling toml_edit v0.22.24
Compiling percent-encoding v2.3.1
Compiling lazy_static v1.5.0
Compiling tera v1.20.0
Compiling toml v0.8.20
Compiling localhost v0.1.0 (/home/student/localhost)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.53s
Running `target/debug/localhost`