feat: add verified evidence file copy
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commit
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6 changed files with 4979 additions and 3 deletions
17
Makefile
17
Makefile
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@ -41,7 +41,6 @@ TEST_TRANSACTION = tests/test_transaction
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TEST_ERROR = tests/test_error
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TEST_INVESTIGATION_RECORD = tests/test_investigation_record
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TEST_EVIDENCE_RECORD := tests/test_evidence_record
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TEST_EVIDENCE_RECORD := tests/test_evidence_record
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TEST_INVESTIGATION_DAO := tests/test_investigation_dao
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TEST_EVIDENCE_DAO := tests/test_evidence_dao
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TEST_INVESTIGATION_SESSION := tests/test_investigation_session
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@ -53,6 +52,7 @@ TEST_TOOL_TASK := tests/test_tool_task
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TEST_TOOL_CATALOG := tests/test_tool_catalog
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TEST_TOOL_INITIALIZER := tests/test_tool_initializer
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TEST_FILE_HASH := tests/test_file_hash
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TEST_EVIDENCE_COPY := tests/test_evidence_copy
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all: $(TARGET)
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@ -220,6 +220,14 @@ $(TEST_FILE_HASH): \
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-DFILE_HASH_ENABLE_TEST_HOOKS \
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$^ -o $@ $(TEST_LDFLAGS)
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$(TEST_EVIDENCE_COPY): \
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tests/test_evidence_copy.c \
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src/core/evidence_copy.c \
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src/core/file_hash.c
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$(CC) $(TEST_CFLAGS) \
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-DEVIDENCE_COPY_ENABLE_TEST_HOOKS \
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$^ -o $@ $(TEST_LDFLAGS)
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test: \
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$(TEST_NODE) \
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$(TEST_TREE_MODEL) \
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@ -241,7 +249,8 @@ test: \
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$(TEST_TOOL_TASK) \
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$(TEST_TOOL_CATALOG) \
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$(TEST_TOOL_INITIALIZER) \
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$(TEST_FILE_HASH)
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$(TEST_FILE_HASH) \
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$(TEST_EVIDENCE_COPY)
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@echo "Exécution des tests..."
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@./$(TEST_NODE)
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@./$(TEST_TREE_MODEL)
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@ -264,6 +273,7 @@ test: \
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@$(TEST_TOOL_CATALOG)
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@$(TEST_TOOL_INITIALIZER)
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@$(TEST_FILE_HASH)
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@$(TEST_EVIDENCE_COPY)
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@echo "Tous les tests sont valides."
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%.o: %.c
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@ -294,7 +304,8 @@ clean:
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$(TEST_TOOL_TASK) \
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$(TEST_TOOL_CATALOG) \
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$(TEST_TOOL_INITIALIZER) \
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$(TEST_FILE_HASH)
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$(TEST_FILE_HASH) \
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$(TEST_EVIDENCE_COPY)
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.PHONY: clean run test
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199
include/core/evidence_copy.h
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199
include/core/evidence_copy.h
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@ -0,0 +1,199 @@
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/******************************************************************************
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* @file evidence_copy.h
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* @brief Copie sûre et vérifiée des fichiers de preuve.
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******************************************************************************/
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#ifndef LABFY_INVESTIGATION_EVIDENCE_COPY_H
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#define LABFY_INVESTIGATION_EVIDENCE_COPY_H
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#include <gio/gio.h>
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#include <glib.h>
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/**
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* @brief Catégories d’erreurs du module EvidenceCopy.
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*/
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typedef enum
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{
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EVIDENCE_COPY_ERROR_INVALID_ARGUMENT,
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EVIDENCE_COPY_ERROR_SOURCE_NOT_FOUND,
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EVIDENCE_COPY_ERROR_SOURCE_NOT_REGULAR,
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EVIDENCE_COPY_ERROR_DESTINATION_INVALID,
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EVIDENCE_COPY_ERROR_DESTINATION_EXISTS,
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EVIDENCE_COPY_ERROR_OPEN_SOURCE,
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EVIDENCE_COPY_ERROR_CREATE_DESTINATION,
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EVIDENCE_COPY_ERROR_READ,
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EVIDENCE_COPY_ERROR_WRITE,
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EVIDENCE_COPY_ERROR_SYNC,
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EVIDENCE_COPY_ERROR_HASH,
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EVIDENCE_COPY_ERROR_VERIFY,
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EVIDENCE_COPY_ERROR_CANCELLED,
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EVIDENCE_COPY_ERROR_MEMORY,
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EVIDENCE_COPY_ERROR_CLEANUP
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} EvidenceCopyError;
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/**
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* @brief Domaine d’erreurs du module EvidenceCopy.
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*/
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#define EVIDENCE_COPY_ERROR \
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evidence_copy_error_quark()
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/**
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* @brief Retourne le domaine d’erreurs du module EvidenceCopy.
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*/
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GQuark evidence_copy_error_quark(void);
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/**
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* @brief Résultat opaque d’une copie de preuve validée.
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*/
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typedef struct EvidenceCopyResult EvidenceCopyResult;
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/**
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* @brief Copie et vérifie un fichier de preuve.
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*
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* La fonction :
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*
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* - refuse les sources non régulières ;
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* - refuse un dossier destination symbolique ;
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* - crée exclusivement un nouveau fichier ;
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* - copie le contenu progressivement ;
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* - synchronise les données écrites ;
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* - compare la taille et le SHA-256 de la source et de la destination ;
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* - supprime la destination en cas d’échec après sa création.
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*
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* Le fichier source n’est jamais modifié.
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*
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* Le nom destination doit représenter uniquement un nom de fichier :
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* il ne doit contenir aucun séparateur de chemin.
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*
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* @param source_path Chemin du fichier source.
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* @param destination_directory Dossier recevant la copie.
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* @param destination_name Nom du fichier destination.
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* @param cancellable Objet d’annulation facultatif.
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* @param error Adresse recevant une éventuelle erreur.
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*
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* @return Nouveau résultat possédé par l’appelant, ou NULL.
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*/
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EvidenceCopyResult *evidence_copy_file(
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const char *source_path,
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const char *destination_directory,
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const char *destination_name,
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GCancellable *cancellable,
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GError **error
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);
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/**
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* @brief Libère un résultat de copie.
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*
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* La copie validée présente sur le disque n’est pas supprimée.
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* Cette fonction accepte NULL.
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*
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* @param result Résultat à libérer.
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*/
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void evidence_copy_result_free(
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EvidenceCopyResult *result
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);
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/**
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* @brief Retourne le chemin complet de la copie validée.
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*
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* Le pointeur appartient au résultat.
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*
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* @return Chemin destination, ou NULL.
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*/
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const char *evidence_copy_result_get_destination_path(
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const EvidenceCopyResult *result
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);
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/**
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* @brief Retourne le nom du fichier destination.
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*
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* Le pointeur appartient au résultat.
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*
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* @return Nom destination, ou NULL.
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*/
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const char *evidence_copy_result_get_destination_name(
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const EvidenceCopyResult *result
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);
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/**
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* @brief Retourne le SHA-256 validé de la copie.
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*
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* Le pointeur appartient au résultat.
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*
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* @return SHA-256 sur 64 caractères, ou NULL.
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*/
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const char *evidence_copy_result_get_sha256(
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const EvidenceCopyResult *result
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);
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/**
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* @brief Retourne la taille validée de la copie.
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*
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* @return Taille en octets, ou zéro si result vaut NULL.
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*/
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guint64 evidence_copy_result_get_size_bytes(
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const EvidenceCopyResult *result
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);
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#ifdef EVIDENCE_COPY_ENABLE_TEST_HOOKS
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/**
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* @brief Crochet appelé après chaque bloc copié.
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*/
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typedef void (*EvidenceCopyTestBlockHook)(
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guint64 copied_size_bytes,
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gpointer user_data
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);
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void evidence_copy_test_set_block_hook(
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EvidenceCopyTestBlockHook block_hook,
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gpointer user_data
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);
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/**
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* @brief Crochet appelé avant chaque tentative d’écriture.
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*/
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typedef gboolean (*EvidenceCopyTestBeforeWriteHook)(
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guint64 written_size_bytes,
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gpointer user_data
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);
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void evidence_copy_test_set_before_write_hook(
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EvidenceCopyTestBeforeWriteHook before_write_hook,
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gpointer user_data
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);
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/**
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* @brief Crochet appelé avant la vérification cryptographique finale.
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*/
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typedef void (*EvidenceCopyTestBeforeVerifyHook)(
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const char *destination_path,
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gpointer user_data
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);
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void evidence_copy_test_set_before_verify_hook(
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EvidenceCopyTestBeforeVerifyHook before_verify_hook,
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gpointer user_data
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);
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/**
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* @brief Crochet appelé avant la suppression d’une copie invalide.
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*
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* Retourner TRUE simule un échec de suppression.
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*/
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typedef gboolean (*EvidenceCopyTestCleanupHook)(
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const char *destination_path,
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gpointer user_data
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);
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/**
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* @brief Configure le crochet de nettoyage réservé aux tests.
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*/
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void evidence_copy_test_set_cleanup_hook(
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EvidenceCopyTestCleanupHook cleanup_hook,
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gpointer user_data
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);
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#endif
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#endif
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1572
src/core/evidence_copy.c
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1572
src/core/evidence_copy.c
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BIN
tests/test_evidence_copy
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BIN
tests/test_evidence_copy
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3194
tests/test_evidence_copy.c
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3194
tests/test_evidence_copy.c
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