diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libalpm/alpm.h | 282 |
1 files changed, 167 insertions, 115 deletions
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h index 9717c192..dab90886 100644 --- a/lib/libalpm/alpm.h +++ b/lib/libalpm/alpm.h @@ -264,7 +264,7 @@ alpm_handle_t *alpm_initialize(const char *root, const char *dbpath, * This should be the last alpm call you make. * After this returns, handle should be considered invalid and cannot be reused * in any way. - * @param myhandle the context handle + * @param handle the context handle * @return 0 on success, -1 on error */ int alpm_release(alpm_handle_t *handle); @@ -274,6 +274,172 @@ int alpm_release(alpm_handle_t *handle); typedef int64_t alpm_time_t; +/** @addtogroup alpm_sig Signature checking + * @brief Functions to check signatures + * @{ + */ + +/** PGP signature verification options */ +typedef enum _alpm_siglevel_t { + /** Packages require a signature */ + ALPM_SIG_PACKAGE = (1 << 0), + /** Packages do not require a signature, + * but check packages that do have signatures */ + ALPM_SIG_PACKAGE_OPTIONAL = (1 << 1), + /* Allow packages with signatures that are marginal trust */ + ALPM_SIG_PACKAGE_MARGINAL_OK = (1 << 2), + /** Allow packages with signatues that are unknown trust */ + ALPM_SIG_PACKAGE_UNKNOWN_OK = (1 << 3), + + /** Databases require a signature */ + ALPM_SIG_DATABASE = (1 << 10), + /** Databases do not require a signature, + * but check databases that do have signatures */ + ALPM_SIG_DATABASE_OPTIONAL = (1 << 11), + /** Allow databases with signatures that are marginal trust */ + ALPM_SIG_DATABASE_MARGINAL_OK = (1 << 12), + /** Allow databases with signatues that are unknown trust */ + ALPM_SIG_DATABASE_UNKNOWN_OK = (1 << 13), + + /** The Default siglevel */ + ALPM_SIG_USE_DEFAULT = (1 << 30) +} alpm_siglevel_t; + +/** PGP signature verification status return codes */ +typedef enum _alpm_sigstatus_t { + /** Signature is valid */ + ALPM_SIGSTATUS_VALID, + /** The key has expired */ + ALPM_SIGSTATUS_KEY_EXPIRED, + /** The signature has expired */ + ALPM_SIGSTATUS_SIG_EXPIRED, + /** The key is not in the keyring */ + ALPM_SIGSTATUS_KEY_UNKNOWN, + /** The key has been disabled */ + ALPM_SIGSTATUS_KEY_DISABLED, + /** The signature is invalid */ + ALPM_SIGSTATUS_INVALID +} alpm_sigstatus_t; + + +/** The trust level of a PGP key */ +typedef enum _alpm_sigvalidity_t { + /** The signature is fully trusted */ + ALPM_SIGVALIDITY_FULL, + /** The signature is marginally trusted */ + ALPM_SIGVALIDITY_MARGINAL, + /** The signature is never trusted */ + ALPM_SIGVALIDITY_NEVER, + /** The signature has unknown trust */ + ALPM_SIGVALIDITY_UNKNOWN +} alpm_sigvalidity_t; + +/** A PGP key */ +typedef struct _alpm_pgpkey_t { + /** The actual key data */ + void *data; + /** The key's fingerprint */ + char *fingerprint; + /** UID of the key */ + char *uid; + /** Name of the key's owner */ + char *name; + /** Email of the key's owner */ + char *email; + /** When the key was created */ + alpm_time_t created; + /** When the key expires */ + alpm_time_t expires; + /** The length of the key */ + unsigned int length; + /** has the key been revoked */ + unsigned int revoked; + /** A character representing the encryption algorithm used by the public key + * + * ? = unknown + * R = RSA + * D = DSA + * E = EDDSA + */ + char pubkey_algo; +} alpm_pgpkey_t; + +/** + * Signature result. Contains the key, status, and validity of a given + * signature. + */ +typedef struct _alpm_sigresult_t { + /** The key of the signature */ + alpm_pgpkey_t key; + /** The status of the signature */ + alpm_sigstatus_t status; + /** The validity of the signature */ + alpm_sigvalidity_t validity; +} alpm_sigresult_t; + +/** + * Signature list. Contains the number of signatures found and a pointer to an + * array of results. The array is of size count. + */ +typedef struct _alpm_siglist_t { + /** The amount of results in the array */ + size_t count; + /** An array of sigresults */ + alpm_sigresult_t *results; +} alpm_siglist_t; + +/** + * Check the PGP signature for the given package file. + * @param pkg the package to check + * @param siglist a pointer to storage for signature results + * @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred) + */ +int alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg, alpm_siglist_t *siglist); + +/** + * Check the PGP signature for the given database. + * @param db the database to check + * @param siglist a pointer to storage for signature results + * @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred) + */ +int alpm_db_check_pgp_signature(alpm_db_t *db, alpm_siglist_t *siglist); + +/** + * Clean up and free a signature result list. + * Note that this does not free the siglist object itself in case that + * was allocated on the stack; this is the responsibility of the caller. + * @param siglist a pointer to storage for signature results + * @return 0 on success, -1 on error + */ +int alpm_siglist_cleanup(alpm_siglist_t *siglist); + +/** + * Decode a loaded signature in base64 form. + * @param base64_data the signature to attempt to decode + * @param data the decoded data; must be freed by the caller + * @param data_len the length of the returned data + * @return 0 on success, -1 on failure to properly decode + */ +int alpm_decode_signature(const char *base64_data, + unsigned char **data, size_t *data_len); + +/** + * Extract the Issuer Key ID from a signature + * @param handle the context handle + * @param identifier the identifier of the key. + * This may be the name of the package or the path to the package. + * @param sig PGP signature + * @param len length of signature + * @param keys a pointer to storage for key IDs + * @return 0 on success, -1 on error + */ +int alpm_extract_keyid(alpm_handle_t *handle, const char *identifier, + const unsigned char *sig, const size_t len, alpm_list_t **keys); + +/* End of alpm_sig */ +/** @} */ + + /* * Enumerations * These ones are used in multiple contexts, so are forward-declared. @@ -329,39 +495,6 @@ typedef enum _alpm_fileconflicttype_t { ALPM_FILECONFLICT_FILESYSTEM } alpm_fileconflicttype_t; -/** PGP signature verification options */ -typedef enum _alpm_siglevel_t { - ALPM_SIG_PACKAGE = (1 << 0), - ALPM_SIG_PACKAGE_OPTIONAL = (1 << 1), - ALPM_SIG_PACKAGE_MARGINAL_OK = (1 << 2), - ALPM_SIG_PACKAGE_UNKNOWN_OK = (1 << 3), - - ALPM_SIG_DATABASE = (1 << 10), - ALPM_SIG_DATABASE_OPTIONAL = (1 << 11), - ALPM_SIG_DATABASE_MARGINAL_OK = (1 << 12), - ALPM_SIG_DATABASE_UNKNOWN_OK = (1 << 13), - - ALPM_SIG_USE_DEFAULT = (1 << 30) -} alpm_siglevel_t; - -/** PGP signature verification status return codes */ -typedef enum _alpm_sigstatus_t { - ALPM_SIGSTATUS_VALID, - ALPM_SIGSTATUS_KEY_EXPIRED, - ALPM_SIGSTATUS_SIG_EXPIRED, - ALPM_SIGSTATUS_KEY_UNKNOWN, - ALPM_SIGSTATUS_KEY_DISABLED, - ALPM_SIGSTATUS_INVALID -} alpm_sigstatus_t; - -/** PGP signature verification status return codes */ -typedef enum _alpm_sigvalidity_t { - ALPM_SIGVALIDITY_FULL, - ALPM_SIGVALIDITY_MARGINAL, - ALPM_SIGVALIDITY_NEVER, - ALPM_SIGVALIDITY_UNKNOWN -} alpm_sigvalidity_t; - /* * Structures */ @@ -427,39 +560,6 @@ typedef struct _alpm_backup_t { char *hash; } alpm_backup_t; -typedef struct _alpm_pgpkey_t { - void *data; - char *fingerprint; - char *uid; - char *name; - char *email; - alpm_time_t created; - alpm_time_t expires; - unsigned int length; - unsigned int revoked; - char pubkey_algo; -} alpm_pgpkey_t; - -/** - * Signature result. Contains the key, status, and validity of a given - * signature. - */ -typedef struct _alpm_sigresult_t { - alpm_pgpkey_t key; - alpm_sigstatus_t status; - alpm_sigvalidity_t validity; -} alpm_sigresult_t; - -/** - * Signature list. Contains the number of signatures found and a pointer to an - * array of results. The array is of size count. - */ -typedef struct _alpm_siglist_t { - size_t count; - alpm_sigresult_t *results; -} alpm_siglist_t; - - /* * Hooks */ @@ -1652,54 +1752,6 @@ int alpm_pkg_set_reason(alpm_pkg_t *pkg, alpm_pkgreason_t reason); */ alpm_file_t *alpm_filelist_contains(alpm_filelist_t *filelist, const char *path); -/* - * Signatures - */ - -/** - * Check the PGP signature for the given package file. - * @param pkg the package to check - * @param siglist a pointer to storage for signature results - * @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred) - */ -int alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg, alpm_siglist_t *siglist); - -/** - * Check the PGP signature for the given database. - * @param db the database to check - * @param siglist a pointer to storage for signature results - * @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred) - */ -int alpm_db_check_pgp_signature(alpm_db_t *db, alpm_siglist_t *siglist); - -/** - * Clean up and free a signature result list. - * Note that this does not free the siglist object itself in case that - * was allocated on the stack; this is the responsibility of the caller. - * @param siglist a pointer to storage for signature results - * @return 0 on success, -1 on error - */ -int alpm_siglist_cleanup(alpm_siglist_t *siglist); - -/** - * Decode a loaded signature in base64 form. - * @param base64_data the signature to attempt to decode - * @param data the decoded data; must be freed by the caller - * @param data_len the length of the returned data - * @return 0 on success, -1 on failure to properly decode - */ -int alpm_decode_signature(const char *base64_data, - unsigned char **data, size_t *data_len); - -/** - * Extract the Issuer Key ID from a signature - * @param sig PGP signature - * @param len length of signature - * @param keys a pointer to storage for key IDs - * @return 0 on success, -1 on error - */ -int alpm_extract_keyid(alpm_handle_t *handle, const char *identifier, - const unsigned char *sig, const size_t len, alpm_list_t **keys); /* * Groups |