Allow decoding of SMBIOS Type 11 serialnumbers

They're the serialnumbers of what the system was originally assembled
with in the factory.

TODO

- [ ] Cleanup code
- [ ] Make safer with fewer unwraps
- [ ] Custom command, not in info
- [ ] Make sure date is decoded correctly
- [ ] Support Framework 12
- [x] Support Framework 13
- [ ] Support Framework 16

Signed-off-by: Daniel Schaefer <[email protected]>

Author: JohnAZoidberg

framework_lib/src/commandline/clap_std.rs

@@ -75,10 +75,14 @@ struct ClapCli {
     #[arg(long)]
     pdports: bool,
 
-    /// Show info from SMBIOS (Only on UEFI)
+    /// Show info from SMBIOS
     #[arg(long)]
     info: bool,
 
+    /// Show info about system serial numbers
+    #[arg(long)]
+    serialnums: bool,
+
     /// Show details about the PD controllers
     #[arg(long)]
     pd_info: bool,
@@ -457,6 +461,7 @@ pub fn parse(args: &[String]) -> Cli {
         paginate: false,
         info: args.info,
         flash_gpu_descriptor,
+        serialnums: args.serialnums,
         raw_command: vec![],
     }
 }

framework_lib/src/commandline/mod.rs

@@ -201,6 +201,7 @@ pub struct Cli {
     pub help: bool,
     pub info: bool,
     pub flash_gpu_descriptor: Option<(u8, String)>,
+    pub serialnums: bool,
     // UEFI only
     pub allupdate: bool,
     pub paginate: bool,
@@ -1012,6 +1013,8 @@ pub fn run_with_args(args: &Cli, _allupdate: bool) -> i32 {
         power::get_and_print_pd_info(&ec);
     } else if args.info {
         smbios_info();
+    } else if args.serialnums {
+        serialnum_info();
     } else if args.pd_info {
         print_pd_details(&ec);
     } else if let Some(pd) = args.pd_reset {
@@ -1249,7 +1252,8 @@ Options:
       --fansetrpm            Set fan RPM (limited by EC fan table max RPM)
       --autofanctrl          Turn on automatic fan speed control
       --pdports              Show information about USB-C PD ports
-      --info                 Show info from SMBIOS (Only on UEFI)
+      --info                 Show info from SMBIOS
+      --serialnums           Show info about system serial numbers
       --pd-info              Show details about the PD controllers
       --privacy              Show privacy switch statuses (camera and microphone)
       --pd-bin <PD_BIN>      Parse versions from PD firmware binary file
@@ -1488,6 +1492,19 @@ fn smbios_info() {
     }
 }
 
+fn serialnum_info() {
+    let smbios = get_smbios();
+    if smbios.is_none() {
+        error!("Failed to find SMBIOS");
+        return;
+    }
+    for undefined_struct in smbios.unwrap().iter() {
+        if let DefinedStruct::OemStrings(data) = undefined_struct.defined_struct() {
+            smbios::dump_oem_strings(data.oem_strings());
+        }
+    }
+}
+
 fn analyze_ccgx_pd_fw(data: &[u8]) {
     if let Some(versions) = ccgx::binary::read_versions(data, Ccg3) {
         println!("Detected CCG3 firmware");

framework_lib/src/commandline/uefi.rs

@@ -118,6 +118,7 @@ pub fn parse(args: &[String]) -> Cli {
         flash_gpu_descriptor: None,
         allupdate: false,
         info: false,
+        serialnums: false,
         raw_command: vec![],
     };
 
@@ -232,6 +233,9 @@ pub fn parse(args: &[String]) -> Cli {
         } else if arg == "--info" {
             cli.info = true;
             found_an_option = true;
+        } else if arg == "--serialnums" {
+            cli.serialnums = true;
+            found_an_option = true;
         } else if arg == "--intrusion" {
             cli.intrusion = true;
             found_an_option = true;

framework_lib/src/lib.rs

@@ -39,6 +39,7 @@ pub mod ec_binary;
 pub mod esrt;
 mod os_specific;
 pub mod power;
+pub mod serialnum;
 pub mod smbios;
 #[cfg(feature = "uefi")]
 pub mod uefi;

framework_lib/src/serialnum.rs

@@ -0,0 +1,101 @@
+use alloc::string::{String, ToString};
+use core::str::FromStr;
+
+#[derive(Debug)]
+pub struct FrameworkSerial {
+    // brand:  Always FR for Framework
+    // format: Always A
+    /// Three letter string
+    pub product: String,
+    /// Two letter string
+    pub oem: String,
+    /// Development state
+    pub cfg0: Cfg0,
+    /// Defines config of that specific product
+    pub cfg1: char,
+    pub year: u16,
+    pub week: u8,
+    pub day: WeekDay,
+    /// Four letter/digit string
+    pub part: String,
+}
+
+#[derive(Debug)]
+pub enum Cfg0 {
+    SKU = 0x00,
+    Poc1 = 0x01,
+    Proto1 = 0x02,
+    Proto2 = 0x03,
+    Evt1 = 0x04,
+    Evt2 = 0x05,
+    Reserved = 0x06,
+    Dvt1 = 0x07,
+    Dvt2 = 0x08,
+    Pvt = 0x09,
+    Mp = 0x0A,
+}
+
+#[derive(Debug)]
+pub enum WeekDay {
+    Monday = 1,
+    Tuesday,
+    Wednesday,
+    Thursday,
+    Friday,
+    Saturday,
+    Sunday,
+}
+
+impl FromStr for FrameworkSerial {
+    type Err = String;
+
+    // TODO: !!! PROPER ERROR HANDLING !!!
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        let pattern =
+            r"FRA([A-Z]{3})([A-Z]{2})([0-9A-F])([0-9A-F])([0-9A-Z])([0-9]{2})([0-7])([0-9A-Z]{4})";
+        let re = regex::Regex::new(pattern).unwrap();
+
+        let caps = re.captures(s).ok_or("Invalid Serial".to_string())?;
+
+        let cfg0 = match caps.get(3).unwrap().as_str().chars().next().unwrap() {
+            '0' => Cfg0::SKU,
+            '1' => Cfg0::Poc1,
+            '2' => Cfg0::Proto1,
+            '3' => Cfg0::Proto2,
+            '4' => Cfg0::Evt1,
+            '5' => Cfg0::Evt2,
+            '6' => Cfg0::Reserved,
+            '7' => Cfg0::Dvt1,
+            '8' => Cfg0::Dvt2,
+            '9' => Cfg0::Pvt,
+            'A' => Cfg0::Mp,
+            _ => return Err("Invalid CFG0".to_string()),
+        };
+        let cfg1 = caps.get(4).unwrap().as_str().chars().next().unwrap();
+        let year = str::parse::<u16>(caps.get(5).unwrap().as_str()).unwrap();
+        let year = 2020 + year;
+        let week = str::parse::<u8>(caps.get(6).unwrap().as_str()).unwrap();
+        // TODO: Decode into date
+        let day = match str::parse::<u8>(caps.get(7).unwrap().as_str()).unwrap() {
+            1 => WeekDay::Monday,
+            2 => WeekDay::Tuesday,
+            3 => WeekDay::Wednesday,
+            4 => WeekDay::Thursday,
+            5 => WeekDay::Friday,
+            6 => WeekDay::Saturday,
+            7 => WeekDay::Sunday,
+            _ => return Err("Invalid Day".to_string()),
+        };
+
+        Ok(FrameworkSerial {
+            product: caps.get(1).unwrap().as_str().to_string(),
+            oem: caps.get(2).unwrap().as_str().to_string(),
+            cfg0,
+            cfg1,
+            year,
+            week,
+            day,
+            part: caps.get(2).unwrap().as_str().to_string(),
+        })
+    }
+}

framework_lib/src/smbios.rs

@@ -1,10 +1,12 @@
 //! Retrieve SMBIOS tables and extract information from them
 
+use core::str::FromStr;
 use std::prelude::v1::*;
 
 #[cfg(all(not(feature = "uefi"), not(target_os = "freebsd")))]
 use std::io::ErrorKind;
 
+use crate::serialnum::FrameworkSerial;
 use crate::util::Config;
 pub use crate::util::{Platform, PlatformFamily};
 use num_derive::FromPrimitive;
@@ -351,3 +353,107 @@ fn kenv_get(name: &str) -> nix::Result<String> {
         Ok(value)
     }
 }
+
+#[derive(Debug)]
+enum SmbiosSerialNumber {
+    Mainboard = 1,
+    Laptop,
+    Camera,
+    Display,
+    Battery,
+    Touchpad,
+    Keyboard,
+    Fingerprint,
+    AudioDaughtercard,
+    ACover,
+    BCover,
+    CCover,
+    AntennaMain,
+    AntennaAux,
+    TouchpadFpc,
+    FingerprintFfc,
+    EdpCable,
+    LcdCable,
+    ThermalAssembly,
+    WifiModule,
+    Speaker,
+    RamSlot1,
+    RamSlot2,
+    Ssd,
+    AudioFfc,
+}
+
+pub fn dump_oem_strings(strings: &SMBiosStringSet) {
+    for (i, s) in strings.into_iter().enumerate() {
+        let idx = i + 1;
+        let sn = match idx {
+            1 => Some(SmbiosSerialNumber::Mainboard),
+            2 => Some(SmbiosSerialNumber::Laptop),
+            3 => Some(SmbiosSerialNumber::Camera),
+            4 => Some(SmbiosSerialNumber::Display),
+            5 => Some(SmbiosSerialNumber::Battery),
+            6 => Some(SmbiosSerialNumber::Touchpad),
+            7 => Some(SmbiosSerialNumber::Keyboard),
+            8 => Some(SmbiosSerialNumber::Fingerprint),
+            10 => Some(SmbiosSerialNumber::AudioDaughtercard),
+            11 => Some(SmbiosSerialNumber::ACover),
+            12 => Some(SmbiosSerialNumber::BCover),
+            13 => Some(SmbiosSerialNumber::CCover),
+            14 => Some(SmbiosSerialNumber::AntennaMain),
+            15 => Some(SmbiosSerialNumber::AntennaAux),
+            16 => Some(SmbiosSerialNumber::TouchpadFpc),
+            17 => Some(SmbiosSerialNumber::FingerprintFfc),
+            18 => Some(SmbiosSerialNumber::EdpCable),
+            19 => Some(SmbiosSerialNumber::LcdCable),
+            20 => Some(SmbiosSerialNumber::ThermalAssembly),
+            21 => Some(SmbiosSerialNumber::WifiModule),
+            22 => Some(SmbiosSerialNumber::Speaker),
+            23 => Some(SmbiosSerialNumber::RamSlot1),
+            24 => Some(SmbiosSerialNumber::RamSlot2),
+            25 => Some(SmbiosSerialNumber::Ssd),
+            26 => Some(SmbiosSerialNumber::AudioFfc),
+            _ => None,
+        };
+        match sn {
+            Some(SmbiosSerialNumber::RamSlot1)
+            | Some(SmbiosSerialNumber::RamSlot2)
+            | Some(SmbiosSerialNumber::Ssd)
+            | Some(SmbiosSerialNumber::WifiModule) => {
+                println!("{} {:<20} (Unused)", s, format!("{:?}", sn.unwrap()))
+            }
+            Some(SmbiosSerialNumber::Fingerprint) | Some(SmbiosSerialNumber::CCover) => {
+                println!("{}", s);
+                println!("  {:<20} (Only Pre-Built)", format!("{:?}", sn.unwrap()));
+                if let Ok(serial) = FrameworkSerial::from_str(&format!("{:?}", s)) {
+                    println!(
+                        "  {} (Config {}) by {}, {:>4} Phase ({:?}, Week {}, {})",
+                        serial.product,
+                        serial.cfg1,
+                        serial.oem,
+                        format!("{:?}", serial.cfg0),
+                        serial.day,
+                        serial.week,
+                        serial.year,
+                    );
+                }
+            }
+            Some(sn) => {
+                println!("{}", s);
+                println!("  {:?}", sn);
+                if let Ok(serial) = FrameworkSerial::from_str(&format!("{:?}", s)) {
+                    println!(
+                        "  {} (Config {}) by {}, {:>4} Phase ({:?}, Week {}, {})",
+                        serial.product,
+                        serial.cfg1,
+                        serial.oem,
+                        format!("{:?}", serial.cfg0),
+                        serial.day,
+                        serial.week,
+                        serial.year,
+                    );
+                }
+            }
+            _ => println!("{} Unknown/Reserved", s),
+        }
+    }
+}