crates/sesam-vitale/src/cps.rs

@@ -0,0 +1,408 @@
+use libc::{c_void, size_t};
+use std::ffi::CString;
+use std::ptr;
+
+use crate::libssv::SSV_LireCartePS;
+use crate::ssv_memory::{decode_ssv_memory, Block};
+
+#[derive(Debug, Default)]
+pub struct CartePS {
+    titulaire: TitulairePS,
+    situations: Vec<SituationPS>,
+}
+
+// 1. CB = Caractères Binaires »
+// 2. CE = Caractères « Etendus » (ISO 8859-1)
+// 3. CA = Caractères Alphanumériques (ASCII?)
+// 4. CN = Caractères Numériques
+#[derive(Debug, Default)]
+struct TitulairePS {
+    type_de_carte_ps: String,                         // CN
+    type_d_identification_nationale: String,          // CN
+    numero_d_identification_nationale: String,        // CE - 8 -> 30
+    cle_du_numero_d_identification_nationale: String, // CN
+    code_civilite: String,                            // CN
+    nom_du_ps: String,                                // CE - 27
+    prenom_du_ps: String,                             // CE - 27
+    categorie_carte: char,                            // CA
+}
+
+#[derive(Debug, Default)]
+struct SituationPS {
+    numero_logique_de_la_situation_de_facturation_du_ps: u8,
+    mode_d_exercice: String,
+    statut_d_exercice: String,
+    secteur_d_activite: String,
+    type_d_identification_structure: String,
+    numero_d_identification_structure: String,
+    cle_du_numero_d_identification_structure: String,
+    raison_sociale_structure: String,
+    numero_d_identification_de_facturation_du_ps: String,
+    cle_du_numero_d_identification_de_facturation_du_ps: String,
+    numero_d_identification_du_ps_remplaçant: String,
+    cle_du_numero_d_identification_du_ps_remplaçant: String,
+    code_conventionnel: String,
+    code_specialite: String,
+    code_zone_tarifaire: String,
+    code_zone_ik: String,
+    code_agrement_1: String,
+    code_agrement_2: String,
+    code_agrement_3: String,
+    habilitation_à_signer_une_facture: String,
+    habilitation_à_signer_un_lot: String,
+}
+
+pub fn lire_carte(code_pin: &str, lecteur: &str) -> Result<CartePS, String> {
+    let resource_ps = CString::new(lecteur).expect("CString::new failed");
+    let resource_reader = CString::new("").expect("CString::new failed");
+    let card_number = CString::new(code_pin).expect("CString::new failed");
+
+    let mut buffer: *mut c_void = ptr::null_mut();
+    let mut size: size_t = 0;
+    let mut hex_values: &[u8] = &[];
+    unsafe {
+        let result = SSV_LireCartePS(
+            resource_ps.as_ptr(),
+            resource_reader.as_ptr(),
+            card_number.as_ptr(),
+            &mut buffer,
+            &mut size,
+        );
+        println!("SSV_LireCartePS result: {}", result);
+
+        if !buffer.is_null() {
+            hex_values = std::slice::from_raw_parts(buffer as *const u8, size);
+            libc::free(buffer);
+        }
+    }
+    let groups = decode_ssv_memory(hex_values, hex_values.len());
+    decode_carte_ps(groups)
+}
+
+fn decode_carte_ps(groups: Vec<Block>) -> Result<CartePS, String> {
+    let mut carte_ps = CartePS::default();
+    for group in groups {
+        for field in group.content {
+            match (group.id, field.id) {
+                (1, 1) => {
+                    carte_ps.titulaire.type_de_carte_ps =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 2) => {
+                    carte_ps.titulaire.type_d_identification_nationale =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 3) => {
+                    carte_ps.titulaire.numero_d_identification_nationale =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 4) => {
+                    carte_ps.titulaire.cle_du_numero_d_identification_nationale =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 5) => {
+                    carte_ps.titulaire.code_civilite =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 6) => {
+                    carte_ps.titulaire.nom_du_ps =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 7) => {
+                    carte_ps.titulaire.prenom_du_ps =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (1, 8) => {
+                    let byte = field.content[0];
+                    carte_ps.titulaire.categorie_carte = byte as char;
+                }
+                (2..=16, 1) => {
+                    carte_ps.situations.push(SituationPS::default());
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .numero_logique_de_la_situation_de_facturation_du_ps = field.content[0];
+                }
+                (2..=16, 2) => {
+                    carte_ps.situations.last_mut().unwrap().mode_d_exercice =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 3) => {
+                    carte_ps.situations.last_mut().unwrap().statut_d_exercice =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 4) => {
+                    carte_ps.situations.last_mut().unwrap().secteur_d_activite =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 5) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .type_d_identification_structure =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 6) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .numero_d_identification_structure =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 7) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .cle_du_numero_d_identification_structure =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 8) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .raison_sociale_structure =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 9) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .numero_d_identification_de_facturation_du_ps =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 10) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .cle_du_numero_d_identification_de_facturation_du_ps =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 11) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .numero_d_identification_du_ps_remplaçant =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 12) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .cle_du_numero_d_identification_du_ps_remplaçant =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 13) => {
+                    carte_ps.situations.last_mut().unwrap().code_conventionnel =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 14) => {
+                    carte_ps.situations.last_mut().unwrap().code_specialite =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 15) => {
+                    carte_ps.situations.last_mut().unwrap().code_zone_tarifaire =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 16) => {
+                    carte_ps.situations.last_mut().unwrap().code_zone_ik =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 17) => {
+                    carte_ps.situations.last_mut().unwrap().code_agrement_1 =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 18) => {
+                    carte_ps.situations.last_mut().unwrap().code_agrement_2 =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 19) => {
+                    carte_ps.situations.last_mut().unwrap().code_agrement_3 =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 20) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .habilitation_à_signer_une_facture =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                (2..=16, 21) => {
+                    carte_ps
+                        .situations
+                        .last_mut()
+                        .unwrap()
+                        .habilitation_à_signer_un_lot =
+                        String::from_utf8_lossy(field.content).to_string();
+                }
+                _ => {
+                    return Err(format!(
+                        "Unknown (group, field) pair: ({}, {})",
+                        group.id, field.id
+                    ))
+                }
+            }
+        }
+    }
+    Ok(carte_ps)
+}
+
+#[cfg(test)]
+mod test_decode_carte_ps {
+    use super::*;
+
+    #[test]
+    fn test_francoise_pharmacien0052419() {
+        let bytes: &[u8] = &[
+            0, 1, 51, // Block 01, Content size 51
+            1, 48, // Field 01, Content size 1
+            1, 56, // Field 02, Content size 1
+            11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52, // Field 03, Content size 11
+            1, 52, // Field 04, Content size 1
+            2, 50, 50, // Field 05, Content size 2
+            17, 80, 72, 65, 82, 77, 65, 67, 73, 69, 78, 48, 48, 53, 50, 52, 49,
+            57, // Field 06, Content size 17
+            9, 70, 82, 65, 78, 67, 79, 73, 83, 69, // Field 07, Content size 9
+            1, 84, // Field 08, Content size 1
+            0, 2, 83, // Block 02, Content size 83
+            1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56, 1, 56, 24,
+            80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69, 50, 50, 49,
+            57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53, 48, 2, 49,
+            48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49,
+        ];
+        let blocks = decode_ssv_memory(bytes, bytes.len());
+        let carte_ps = decode_carte_ps(blocks).unwrap();
+
+        assert_eq!(carte_ps.titulaire.type_de_carte_ps, "0");
+        assert_eq!(carte_ps.titulaire.type_d_identification_nationale, "8");
+        assert_eq!(
+            carte_ps.titulaire.numero_d_identification_nationale,
+            "99700524194"
+        );
+        assert_eq!(
+            carte_ps.titulaire.cle_du_numero_d_identification_nationale,
+            "4"
+        );
+        assert_eq!(carte_ps.titulaire.code_civilite, "22");
+        assert_eq!(carte_ps.titulaire.nom_du_ps, "PHARMACIEN0052419");
+        assert_eq!(carte_ps.titulaire.prenom_du_ps, "FRANCOISE");
+        assert_eq!(carte_ps.titulaire.categorie_carte, 'T');
+
+        assert_eq!(carte_ps.situations.len(), 1);
+        assert_eq!(
+            carte_ps.situations[0].numero_logique_de_la_situation_de_facturation_du_ps,
+            1
+        );
+        assert_eq!(carte_ps.situations[0].mode_d_exercice, "0");
+        assert_eq!(carte_ps.situations[0].statut_d_exercice, "1");
+        assert_eq!(carte_ps.situations[0].secteur_d_activite, "86");
+        assert_eq!(carte_ps.situations[0].type_d_identification_structure, "1");
+        assert_eq!(
+            carte_ps.situations[0].numero_d_identification_structure,
+            "0B0221958"
+        );
+        assert_eq!(
+            carte_ps.situations[0].cle_du_numero_d_identification_structure,
+            "8"
+        );
+        assert_eq!(
+            carte_ps.situations[0].raison_sociale_structure,
+            "PHARMACIE DU CENTRE22195"
+        );
+        assert_eq!(
+            carte_ps.situations[0].numero_d_identification_de_facturation_du_ps,
+            "00202419"
+        );
+        assert_eq!(
+            carte_ps.situations[0].cle_du_numero_d_identification_de_facturation_du_ps,
+            "8"
+        );
+        assert_eq!(
+            carte_ps.situations[0].numero_d_identification_du_ps_remplaçant,
+            ""
+        );
+        assert_eq!(
+            carte_ps.situations[0].cle_du_numero_d_identification_du_ps_remplaçant,
+            "0"
+        );
+        assert_eq!(carte_ps.situations[0].code_conventionnel, "1");
+        assert_eq!(carte_ps.situations[0].code_specialite, "50");
+        assert_eq!(carte_ps.situations[0].code_zone_tarifaire, "10");
+        assert_eq!(carte_ps.situations[0].code_zone_ik, "00");
+        assert_eq!(carte_ps.situations[0].code_agrement_1, "0");
+        assert_eq!(carte_ps.situations[0].code_agrement_2, "0");
+        assert_eq!(carte_ps.situations[0].code_agrement_3, "0");
+        assert_eq!(
+            carte_ps.situations[0].habilitation_à_signer_une_facture,
+            "1"
+        );
+        assert_eq!(carte_ps.situations[0].habilitation_à_signer_un_lot, "1");
+    }
+
+    #[test]
+    fn test_multiple_situations() {
+        let bytes: &[u8] = &[
+            0, 1, 51, // Block 01, Content size 51
+            1, 48, 1, 56, 11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52, 1, 52, 2, 50, 50, 17, 80,
+            72, 65, 82, 77, 65, 67, 73, 69, 78, 48, 48, 53, 50, 52, 49, 57, 9, 70, 82, 65, 78, 67,
+            79, 73, 83, 69, 1, 84, 0, 2, 83, // Block 02, Content size 83
+            1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56, 1, 56, 24,
+            80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69, 50, 50, 49,
+            57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53, 48, 2, 49,
+            48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49, 0, 3,
+            83, // Block 03, Content size 83
+            1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56, 1, 56, 24,
+            80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69, 50, 50, 49,
+            57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53, 48, 2, 49,
+            48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49, 0, 4,
+            83, // Block 04, Content size 83
+            1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56, 1, 56, 24,
+            80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69, 50, 50, 49,
+            57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53, 48, 2, 49,
+            48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49,
+        ];
+        let blocks = decode_ssv_memory(bytes, bytes.len());
+        let carte_ps = decode_carte_ps(blocks).unwrap();
+
+        assert_eq!(carte_ps.situations.len(), 3);
+        assert_eq!(
+            carte_ps.situations[0].raison_sociale_structure,
+            "PHARMACIE DU CENTRE22195"
+        );
+        assert_eq!(
+            carte_ps.situations[1].raison_sociale_structure,
+            "PHARMACIE DU CENTRE22195"
+        );
+        assert_eq!(
+            carte_ps.situations[2].raison_sociale_structure,
+            "PHARMACIE DU CENTRE22195"
+        );
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_missing_field() {
+        todo!();
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_unknown_group_field_pair() {
+        todo!();
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_invalid_field_format() {
+        todo!();
+    }
+}

crates/sesam-vitale/src/lib.rs

@@ -1,3 +1,8 @@
+pub mod cps;
+pub mod libssv;
+pub mod ssv_memory;
+pub mod ssvlib_demo;
+
 pub fn add(left: usize, right: usize) -> usize {
     left + right
 }

crates/sesam-vitale/src/libssv.rs

@@ -1,17 +1,23 @@
-/**
- * libssv.rs
- * 
- * Low level bindings to the SSVLIB dynamic library.
- * TODO : look for creating a dedicated *-sys crate : https://kornel.ski/rust-sys-crate
- */
-
-use libc::{ c_char, c_void, c_ushort, size_t };
+/// libssv.rs
+///
+/// Low level bindings to the SSVLIB dynamic library.
+// TODO : look for creating a dedicated *-sys crate : https://kornel.ski/rust-sys-crate
+use libc::{c_char, c_ushort, c_void, size_t};
 
 #[cfg_attr(target_os = "linux", link(name = "ssvlux64"))]
 #[cfg_attr(target_os = "windows", link(name = "ssvw64"))]
 extern "C" {
     pub fn SSV_InitLIB2(pcRepSesamIni: *const c_char) -> c_ushort;
-    pub fn SSV_LireCartePS(NomRessourcePS: *const c_char, NomRessourceLecteur: *const c_char, CodePorteurPS: *const c_char, ZDonneesSortie: *mut *mut c_void, TTailleDonneesSortie: *mut size_t) -> c_ushort;
-    pub fn SSV_LireConfig(ZDonneesSortie: *mut *mut c_void, TTailleDonneesSortie: *mut size_t) -> c_ushort;
+    pub fn SSV_LireCartePS(
+        NomRessourcePS: *const c_char,
+        NomRessourceLecteur: *const c_char,
+        CodePorteurPS: *const c_char,
+        ZDonneesSortie: *mut *mut c_void,
+        TTailleDonneesSortie: *mut size_t,
+    ) -> c_ushort;
+    pub fn SSV_LireConfig(
+        ZDonneesSortie: *mut *mut c_void,
+        TTailleDonneesSortie: *mut size_t,
+    ) -> c_ushort;
 }
-/* TODO : replace void* by Rust struct : https://doc.rust-lang.org/nomicon/ffi.html#representing-opaque-structs */
+// TODO : replace void* by Rust struct : https://doc.rust-lang.org/nomicon/ffi.html#representing-opaque-structs

crates/sesam-vitale/src/main.rs

@@ -1,5 +1,7 @@
-mod ssvlib_demo;
+mod cps;
 mod libssv;
+mod ssv_memory;
+mod ssvlib_demo;
 
 fn main() {
     ssvlib_demo::demo();

crates/sesam-vitale/src/ssv_memory.rs

@@ -0,0 +1,283 @@
+/// # SSV Memory
+/// Provide functions to manipulate raw memory from SSV library.
+use std::convert::TryFrom;
+
+#[derive(PartialEq, Debug)]
+struct ElementSize {
+    pub size: usize,
+    pub pad: usize,
+}
+
+// TODO : Est-ce qu'on pourrait/devrait définir un type custom pour représenter les tableaux de bytes ?
+
+impl TryFrom<&[u8]> for ElementSize {
+    type Error = &'static str;
+
+    fn try_from(bytes: &[u8]) -> Result<Self, Self::Error> {
+        if bytes.is_empty() {
+            return Err("Empty bytes input");
+        }
+
+        let mut element_size = ElementSize { size: 0, pad: 1 };
+        // Longueur:
+        //   - si le bit de poids fort du premier octet est à 0, la longueur est codée sur un octet
+        //   - si le bit de poids fort du premier octet est à 1, les 7 bits de poids faible codent le nombre d'octets utilisés pour coder la longueur
+        if bytes[0] & 0b1000_0000 == 0 {
+            // Size coded on 1 byte
+            element_size.size = bytes[0] as usize;
+        } else {
+            // Size coded on N bytes
+            // N are the 7 lower bits of the first byte
+            let size_bytes_len = (bytes[0] & 0b0111_1111) as usize;
+            if size_bytes_len > bytes.len() - 1 {
+                return Err("Invalid memory: not enough bytes to read the size");
+            } else if size_bytes_len > 4 {
+                return Err("Invalid memory: size is too big");
+            }
+            let size_bytes = &bytes[1..1 + size_bytes_len];
+
+            // u32::from_be_bytes() requires a 4 bytes array
+            let mut padded_bytes = [0u8; 4];
+            padded_bytes[size_bytes_len..].copy_from_slice(size_bytes);
+
+            element_size.size = u32::from_be_bytes(padded_bytes) as usize;
+            element_size.pad += size_bytes_len;
+        }
+        Ok(element_size)
+    }
+}
+
+#[derive(Debug)]
+pub struct Block<'a> {
+    pub id: u16,
+    pub size: usize,
+    pub content: Vec<Field<'a>>,
+}
+
+impl<'a> From<&'a [u8]> for Block<'a> {
+    fn from(bytes: &'a [u8]) -> Self {
+        let mut offset = 0;
+        let id = u16::from_be_bytes(bytes[..2].try_into().unwrap());
+        offset += 2;
+        let ElementSize {
+            size: block_size,
+            pad,
+        } = bytes[2..].try_into().unwrap();
+        offset += pad;
+        let raw_content = &bytes[offset..];
+        let mut field_offset = 0;
+        // While there is still content to read, parse Fields
+        let mut content = Vec::new();
+        let mut field_id = 1;
+        while field_offset < block_size {
+            let mut field: Field<'a> = raw_content[field_offset..].into();
+            field.id = field_id;
+            field_offset += field.size;
+            field_id += 1;
+            content.push(field);
+        }
+        Block {
+            id,
+            size: offset + block_size,
+            content,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct Field<'a> {
+    pub id: u16,
+    pub size: usize,
+    pub content: &'a [u8],
+}
+
+impl<'a> From<&'a [u8]> for Field<'a> {
+    fn from(bytes: &'a [u8]) -> Self {
+        let ElementSize { size, pad } = bytes.try_into().unwrap();
+        let contenu = &bytes[pad..pad + size];
+        Field {
+            id: 0,
+            size: pad + size,
+            content: contenu,
+        }
+    }
+}
+
+pub fn decode_ssv_memory(bytes: &[u8], size: usize) -> Vec<Block> {
+    let mut blocks: Vec<Block> = Vec::new();
+    let mut offset = 0;
+    while offset < size {
+        let block: Block = bytes[offset..].into();
+        offset += block.size;
+        blocks.push(block);
+    }
+    blocks
+}
+
+#[cfg(test)]
+mod test_element_size {
+    use super::*;
+
+    #[test]
+    fn short_size() {
+        let bytes: &[u8] = &[0b_0000_0001_u8];
+        let element_size: ElementSize = bytes.try_into().unwrap();
+        assert_eq!(element_size.size, 1);
+        assert_eq!(element_size.pad, 1);
+
+        let bytes: &[u8] = &[0b_0100_0000_u8];
+        let element_size: ElementSize = bytes.try_into().unwrap();
+        assert_eq!(element_size.size, 64);
+        assert_eq!(element_size.pad, 1);
+    }
+
+    #[test]
+    fn long_size() {
+        let bytes: &[u8] = &[0b_1000_0010_u8, 0b_0000_0001_u8, 0b_0100_0000_u8];
+        let element_size: ElementSize = bytes.try_into().unwrap();
+        assert_eq!(element_size.size, 320);
+        assert_eq!(element_size.pad, 3);
+    }
+
+    #[test]
+    fn null_size() {
+        let bytes: &[u8] = &[];
+        let result: Result<ElementSize, &str> = bytes.try_into();
+        assert_eq!(result, Err("Empty bytes input"),);
+    }
+
+    #[test]
+    fn invalid_memory() {
+        let bytes: &[u8] = &[0b_1000_0001_u8];
+        let result: Result<ElementSize, &str> = bytes.try_into();
+        assert_eq!(
+            result,
+            Err("Invalid memory: not enough bytes to read the size"),
+        );
+
+        let bytes: &[u8] = &[0b_1000_0010_u8, 1];
+        let result: Result<ElementSize, &str> = bytes.try_into();
+        assert_eq!(
+            result,
+            Err("Invalid memory: not enough bytes to read the size"),
+        );
+
+        let bytes: &[u8] = &[0b_1000_0101_u8, 1, 1, 1, 1, 1];
+        let result: Result<ElementSize, &str> = bytes.try_into();
+        assert_eq!(result, Err("Invalid memory: size is too big"),);
+    }
+}
+
+#[cfg(test)]
+mod test_field {
+    use super::*;
+
+    #[test]
+    fn short_size() {
+        let bytes: &[u8] = &[
+            51, 1, 48, 1, 56, 11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52, 1, 52, 2, 50, 50, 17,
+            80, 72, 65, 82, 77, 65, 67, 73, 69, 78, 48, 48, 53, 50, 52, 49, 57, 9, 70, 82, 65, 78,
+            67, 79, 73, 83, 69, 1, 84,
+        ];
+        let element: Field = bytes.into();
+        assert_eq!(element.size, 52);
+        assert_eq!(element.content[..5], [1, 48, 1, 56, 11]);
+    }
+
+    #[test]
+    fn long_size() {
+        let mut bytes_vec = vec![
+            0b_1000_0010_u8,
+            0b_0000_0001_u8,
+            0b_0000_0000_u8, // size = 256
+        ];
+        // Add 256 bytes to the content
+        bytes_vec.append(&mut vec![1; 256]);
+        let bytes: &[u8] = &bytes_vec;
+        let element: Field = bytes.into();
+        assert_eq!(element.size, 259);
+        assert_eq!(element.content.len(), 256);
+    }
+}
+
+#[cfg(test)]
+mod test_block {
+    use super::*;
+
+    #[test]
+    fn test_francoise_pharmacien0052419_partial_block_1() {
+        let bytes: &[u8] = &[1, 48, 1, 56, 11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52];
+
+        let field1: Field = bytes.into();
+        assert_eq!(field1.size, 2);
+        assert_eq!(field1.content, &[48]);
+
+        let field2: Field = bytes[field1.size..].into();
+        assert_eq!(field2.size, 2);
+        assert_eq!(field2.content, &[56]);
+
+        let field3: Field = bytes[field1.size + field2.size..].into();
+        assert_eq!(field3.size, 12);
+        assert_eq!(
+            field3.content,
+            &[57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52]
+        );
+    }
+
+    #[test]
+    fn test_francoise_pharmacien0052419() {
+        let bytes: &[u8] = &[
+            0, 1, 51, // 3
+            1, 48, // 2
+            1, 56, // 2
+            11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52, // 12
+            1, 52, // 2
+            2, 50, 50, // 3
+            17, 80, 72, 65, 82, 77, 65, 67, 73, 69, 78, 48, 48, 53, 50, 52, 49, 57, // 18
+            9, 70, 82, 65, 78, 67, 79, 73, 83, 69, // 10
+            1, 84, // 2
+            // total: 54
+            0, 2, 83, 1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56,
+            1, 56, 24, 80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69,
+            50, 50, 49, 57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53,
+            48, 2, 49, 48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49,
+        ];
+
+        let first_block: Block = bytes.into();
+        assert_eq!(first_block.id, 1);
+        assert_eq!(first_block.size, 54);
+        assert_eq!(first_block.content.len(), 8);
+
+        let second_block: Block = bytes[first_block.size..].into();
+        assert_eq!(second_block.id, 2);
+        assert_eq!(second_block.size, 86);
+        assert_eq!(second_block.content.len(), 21);
+    }
+}
+
+#[cfg(test)]
+mod test_decode_ssv_memory {
+    use super::*;
+
+    #[test]
+    fn test_francoise_pharmacien0052419() {
+        let bytes: &[u8] = &[
+            0, 1, 51, // 3
+            1, 48, // 2
+            1, 56, // 2
+            11, 57, 57, 55, 48, 48, 53, 50, 52, 49, 57, 52, // 12
+            1, 52, // 2
+            2, 50, 50, // 3
+            17, 80, 72, 65, 82, 77, 65, 67, 73, 69, 78, 48, 48, 53, 50, 52, 49, 57, // 18
+            9, 70, 82, 65, 78, 67, 79, 73, 83, 69, // 10
+            1, 84, // 2
+            // total: 54
+            0, 2, 83, 1, 1, 1, 48, 1, 49, 2, 56, 54, 1, 49, 9, 48, 66, 48, 50, 50, 49, 57, 53, 56,
+            1, 56, 24, 80, 72, 65, 82, 77, 65, 67, 73, 69, 32, 68, 85, 32, 67, 69, 78, 84, 82, 69,
+            50, 50, 49, 57, 53, 8, 48, 48, 50, 48, 50, 52, 49, 57, 1, 56, 0, 1, 48, 1, 49, 2, 53,
+            48, 2, 49, 48, 2, 48, 48, 1, 48, 1, 48, 1, 48, 1, 49, 1, 49,
+        ];
+        let blocks = decode_ssv_memory(bytes, bytes.len());
+        assert_eq!(blocks.len(), 2);
+    }
+}

crates/sesam-vitale/src/ssvlib_demo.rs

@@ -1,24 +1,14 @@
-/**
- * High level API for the SSV library,
- * based on the low level bindings in libssv.rs.
- * 
- */
-
-extern crate libc;
+/// High level API for the SSV library,
+/// based on the low level bindings in libssv.rs.
 extern crate dotenv;
-
 use libc::{c_void, size_t};
+use std::env;
 use std::ffi::CString;
 use std::path::PathBuf;
 use std::ptr;
 
-use std::env;
-
-use crate::libssv:: {
-    SSV_InitLIB2,
-    SSV_LireCartePS,
-    SSV_LireConfig
-};
+use crate::cps::lire_carte;
+use crate::libssv::{SSV_InitLIB2, SSV_LireConfig};
 
 fn ssv_init_lib_2() {
     let ini_str = env::var("SESAM_INI_PATH").expect("SESAM_INI_PATH must be set");
@@ -29,35 +19,6 @@ fn ssv_init_lib_2() {
     }
 }
 
-fn ssv_lire_carte_ps() {
-    let resource_ps = CString::new("PS").expect("CString::new failed");
-    let resource_reader = CString::new("TRANSPA1").expect("CString::new failed");
-    let card_number = CString::new("1234567890").expect("CString::new failed");
-
-    let mut buffer: *mut c_void = ptr::null_mut();
-    let mut size: size_t = 0;
-    unsafe {
-        let result = SSV_LireCartePS(
-            resource_ps.as_ptr(),
-            resource_reader.as_ptr(),
-            card_number.as_ptr(),
-            &mut buffer,
-            &mut size
-        );
-        println!("SSV_LireCartePS result: {}", result);
-
-        if !buffer.is_null() {
-            let hex_values = std::slice::from_raw_parts(buffer as *const u8, size);
-            for &byte in hex_values {
-                print!("{:02X} ", byte);
-            }
-            println!();
-
-            libc::free(buffer);
-        }
-    }
-}
-
 fn ssv_lire_config() {
     let mut buffer: *mut c_void = ptr::null_mut();
     let mut size: size_t = 0;
@@ -78,10 +39,8 @@ fn ssv_lire_config() {
 }
 
 pub fn demo() {
-    /*
-     * TODO : this is probably not working on release, because I'm not sure it exists a CARGO_MANIFEST_DIR and so it can find the `.env`
-     * Maybe we could use a system standard config path to store a config file
-     */ 
+    // TODO : this is probably not working on release, because I'm not sure it exists a CARGO_MANIFEST_DIR and so it can find the `.env`
+    // Maybe we could use a system standard config path to store a config file
     let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
     let manifest_path = PathBuf::from(manifest_dir);
     dotenv::from_path(manifest_path.join(".env")).ok();
@@ -89,7 +48,12 @@ pub fn demo() {
     println!("------- Demo for the SSV library --------");
 
     ssv_init_lib_2();
-    ssv_lire_carte_ps();
+
+    let code_pin = "1234";
+    let lecteur = "HID Global OMNIKEY 3x21 Smart Card Reader 0";
+    let carte_ps = lire_carte(code_pin, lecteur).unwrap();
+    println!("CartePS: {:#?}", carte_ps);
+
     ssv_lire_config();
 
     println!("-----------------------------------------");