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-rw-r--r--lib/libalpm/alpm.h67
-rw-r--r--lib/libalpm/be_package.c20
-rw-r--r--lib/libalpm/be_sync.c30
-rw-r--r--lib/libalpm/db.c16
-rw-r--r--lib/libalpm/db.h4
-rw-r--r--lib/libalpm/dload.c5
-rw-r--r--lib/libalpm/error.c12
-rw-r--r--lib/libalpm/handle.c15
-rw-r--r--lib/libalpm/handle.h2
-rw-r--r--lib/libalpm/package.h2
-rw-r--r--lib/libalpm/signing.c168
-rw-r--r--lib/libalpm/signing.h5
-rw-r--r--lib/libalpm/sync.c6
13 files changed, 237 insertions, 115 deletions
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index e733eb2d..049eae2f 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -87,14 +87,31 @@ typedef enum _alpm_fileconflicttype_t {
} alpm_fileconflicttype_t;
/**
- * GPG signature verification options
+ * PGP signature verification options
*/
-typedef enum _pgp_verify_t {
- PM_PGP_VERIFY_UNKNOWN,
- PM_PGP_VERIFY_NEVER,
- PM_PGP_VERIFY_OPTIONAL,
- PM_PGP_VERIFY_ALWAYS
-} pgp_verify_t;
+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 << 31)
+} alpm_siglevel_t;
+
+/**
+ * PGP signature verification return codes
+ */
+typedef enum _alpm_sigstatus_t {
+ ALPM_SIGSTATUS_VALID = 0,
+ ALPM_SIGSTATUS_MARGINAL,
+ ALPM_SIGSTATUS_UNKNOWN,
+ ALPM_SIGSTATUS_BAD
+} alpm_sigstatus_t;
/*
* Structures
@@ -173,6 +190,15 @@ typedef struct _alpm_backup_t {
char *hash;
} alpm_backup_t;
+/** Signature result. Contains the number of signatures found and pointers to
+ * arrays containing key and status info. All contained arrays have size
+ * #count.*/
+typedef struct _alpm_sigresult_t {
+ int count;
+ alpm_sigstatus_t *status;
+ char **uid;
+} alpm_sigresult_t;
+
/*
* Logging facilities
*/
@@ -335,8 +361,8 @@ int alpm_option_set_usedelta(alpm_handle_t *handle, int usedelta);
int alpm_option_get_checkspace(alpm_handle_t *handle);
int alpm_option_set_checkspace(alpm_handle_t *handle, int checkspace);
-pgp_verify_t alpm_option_get_default_sigverify(alpm_handle_t *handle);
-int alpm_option_set_default_sigverify(alpm_handle_t *handle, pgp_verify_t level);
+alpm_siglevel_t alpm_option_get_default_siglevel(alpm_handle_t *handle);
+int alpm_option_set_default_siglevel(alpm_handle_t *handle, alpm_siglevel_t level);
/** @} */
@@ -364,12 +390,12 @@ alpm_list_t *alpm_option_get_syncdbs(alpm_handle_t *handle);
/** Register a sync database of packages.
* @param handle the context handle
* @param treename the name of the sync repository
- * @param check_sig what level of signature checking to perform on the
+ * @param level what level of signature checking to perform on the
* database; note that this must be a '.sig' file type verification
- * @return a alpm_db_t* on success (the value), NULL on error
+ * @return an alpm_db_t* on success (the value), NULL on error
*/
alpm_db_t *alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
- pgp_verify_t check_sig);
+ alpm_siglevel_t level);
/** Unregister a package database.
* @param db pointer to the package database to unregister
@@ -391,11 +417,11 @@ const char *alpm_db_get_name(const alpm_db_t *db);
/** Get the signature verification level for a database.
* Will return the default verification level if this database is set up
- * with PM_PGP_VERIFY_UNKNOWN.
+ * with ALPM_SIG_USE_DEFAULT.
* @param db pointer to the package database
* @return the signature verification level
*/
-pgp_verify_t alpm_db_get_sigverify_level(alpm_db_t *db);
+alpm_siglevel_t alpm_db_get_siglevel(alpm_db_t *db);
/** Check the validity of a database.
* This is most useful for sync databases and verifying signature status.
@@ -473,13 +499,13 @@ int alpm_db_set_pkgreason(alpm_db_t *db, const char *name, alpm_pkgreason_t reas
* @param filename location of the package tarball
* @param full whether to stop the load after metadata is read or continue
* through the full archive
- * @param check_sig what level of package signature checking to perform on the
+ * @param level what level of package signature checking to perform on the
* package; note that this must be a '.sig' file type verification
* @param pkg address of the package pointer
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int alpm_pkg_load(alpm_handle_t *handle, const char *filename, int full,
- pgp_verify_t check_sig, alpm_pkg_t **pkg);
+ alpm_siglevel_t, alpm_pkg_t **pkg);
/** Free a package.
* @param pkg package pointer to free
@@ -715,9 +741,9 @@ alpm_list_t *alpm_pkg_unused_deltas(alpm_pkg_t *pkg);
* Signatures
*/
-int alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg);
+int alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg, alpm_sigresult_t *result);
-int alpm_db_check_pgp_signature(alpm_db_t *db);
+int alpm_db_check_pgp_signature(alpm_db_t *db, alpm_sigresult_t *result);
/*
* Groups
@@ -1025,6 +1051,7 @@ enum _alpm_errno_t {
ALPM_ERR_DB_NOT_NULL,
ALPM_ERR_DB_NOT_FOUND,
ALPM_ERR_DB_INVALID,
+ ALPM_ERR_DB_INVALID_SIG,
ALPM_ERR_DB_VERSION,
ALPM_ERR_DB_WRITE,
ALPM_ERR_DB_REMOVE,
@@ -1044,15 +1071,15 @@ enum _alpm_errno_t {
ALPM_ERR_PKG_NOT_FOUND,
ALPM_ERR_PKG_IGNORED,
ALPM_ERR_PKG_INVALID,
+ ALPM_ERR_PKG_INVALID_SIG,
ALPM_ERR_PKG_OPEN,
ALPM_ERR_PKG_CANT_REMOVE,
ALPM_ERR_PKG_INVALID_NAME,
ALPM_ERR_PKG_INVALID_ARCH,
ALPM_ERR_PKG_REPO_NOT_FOUND,
/* Signatures */
- ALPM_ERR_SIG_MISSINGDIR,
+ ALPM_ERR_SIG_MISSING,
ALPM_ERR_SIG_INVALID,
- ALPM_ERR_SIG_UNKNOWN,
/* Deltas */
ALPM_ERR_DLT_INVALID,
ALPM_ERR_DLT_PATCHFAILED,
diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c
index af213241..46bdaed0 100644
--- a/lib/libalpm/be_package.c
+++ b/lib/libalpm/be_package.c
@@ -233,7 +233,7 @@ static int parse_descfile(alpm_handle_t *handle, struct archive *a, alpm_pkg_t *
*/
alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle, const char *pkgfile,
int full, const char *md5sum, const char *base64_sig,
- pgp_verify_t check_sig)
+ alpm_siglevel_t level)
{
int ret;
int config = 0;
@@ -271,14 +271,12 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle, const char *pkgfile,
}
_alpm_log(handle, ALPM_LOG_DEBUG, "base64_sig: %s\n", base64_sig);
- if(check_sig != PM_PGP_VERIFY_NEVER) {
- _alpm_log(handle, ALPM_LOG_DEBUG, "checking signature for %s\n", pkgfile);
- ret = _alpm_gpgme_checksig(handle, pkgfile, base64_sig);
- if((check_sig == PM_PGP_VERIFY_ALWAYS && ret != 0) ||
- (check_sig == PM_PGP_VERIFY_OPTIONAL && ret == 1)) {
- alpm_pkg_free(newpkg);
- RET_ERR(handle, ALPM_ERR_SIG_INVALID, NULL);
- }
+ if(level & ALPM_SIG_PACKAGE &&
+ _alpm_check_pgp_helper(handle, pkgfile, base64_sig,
+ level & ALPM_SIG_PACKAGE_OPTIONAL, level & ALPM_SIG_PACKAGE_MARGINAL_OK,
+ level & ALPM_SIG_PACKAGE_UNKNOWN_OK, ALPM_ERR_PKG_INVALID_SIG)) {
+ _alpm_pkg_free(newpkg);
+ return NULL;
}
/* next- try to create an archive object to read in the package */
@@ -396,12 +394,12 @@ error:
}
int SYMEXPORT alpm_pkg_load(alpm_handle_t *handle, const char *filename, int full,
- pgp_verify_t check_sig, alpm_pkg_t **pkg)
+ alpm_siglevel_t level, alpm_pkg_t **pkg)
{
CHECK_HANDLE(handle, return -1);
ASSERT(pkg != NULL, RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1));
- *pkg = _alpm_pkg_load_internal(handle, filename, full, NULL, NULL, check_sig);
+ *pkg = _alpm_pkg_load_internal(handle, filename, full, NULL, NULL, level);
if(*pkg == NULL) {
/* pm_errno is set by pkg_load */
return -1;
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index 368accea..d5d797cf 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -69,7 +69,7 @@ static char *get_sync_dir(alpm_handle_t *handle)
static int sync_db_validate(alpm_db_t *db)
{
- pgp_verify_t check_sig;
+ alpm_siglevel_t level;
if(db->status & DB_STATUS_VALID) {
return 0;
@@ -77,10 +77,9 @@ static int sync_db_validate(alpm_db_t *db)
/* this takes into account the default verification level if UNKNOWN
* was assigned to this db */
- check_sig = alpm_db_get_sigverify_level(db);
+ level = alpm_db_get_siglevel(db);
- if(check_sig != PM_PGP_VERIFY_NEVER) {
- int ret;
+ if(level & ALPM_SIG_DATABASE) {
const char *dbpath = _alpm_db_path(db);
if(!dbpath) {
/* pm_errno set in _alpm_db_path() */
@@ -93,12 +92,10 @@ static int sync_db_validate(alpm_db_t *db)
return 0;
}
- _alpm_log(db->handle, ALPM_LOG_DEBUG, "checking signature for %s\n",
- db->treename);
- ret = _alpm_gpgme_checksig(db->handle, dbpath, NULL);
- if((check_sig == PM_PGP_VERIFY_ALWAYS && ret != 0) ||
- (check_sig == PM_PGP_VERIFY_OPTIONAL && ret == 1)) {
- RET_ERR(db->handle, ALPM_ERR_SIG_INVALID, -1);
+ if(_alpm_check_pgp_helper(db->handle, dbpath, NULL,
+ level & ALPM_SIG_DATABASE_OPTIONAL, level & ALPM_SIG_DATABASE_MARGINAL_OK,
+ level & ALPM_SIG_DATABASE_UNKNOWN_OK, ALPM_ERR_DB_INVALID_SIG)) {
+ return 1;
}
}
@@ -149,7 +146,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db)
int ret = -1;
mode_t oldmask;
alpm_handle_t *handle;
- pgp_verify_t check_sig;
+ alpm_siglevel_t level;
/* Sanity checks */
ASSERT(db != NULL, return -1);
@@ -166,7 +163,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db)
/* make sure we have a sane umask */
oldmask = umask(0022);
- check_sig = alpm_db_get_sigverify_level(db);
+ level = alpm_db_get_siglevel(db);
/* attempt to grab a lock */
if(_alpm_handle_lock(handle)) {
@@ -186,8 +183,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db)
ret = _alpm_download(handle, fileurl, syncpath, force, 0, 0);
- if(ret == 0 && (check_sig == PM_PGP_VERIFY_ALWAYS ||
- check_sig == PM_PGP_VERIFY_OPTIONAL)) {
+ if(ret == 0 && (level & ALPM_SIG_DATABASE)) {
/* an existing sig file is no good at this point */
char *sigpath = _alpm_db_sig_path(db);
if(!sigpath) {
@@ -197,7 +193,7 @@ int SYMEXPORT alpm_db_update(int force, alpm_db_t *db)
unlink(sigpath);
free(sigpath);
- int errors_ok = (check_sig == PM_PGP_VERIFY_OPTIONAL);
+ int errors_ok = (level & ALPM_SIG_DATABASE_OPTIONAL);
/* if we downloaded a DB, we want the .sig from the same server */
snprintf(fileurl, len, "%s/%s.db.sig", server, db->treename);
@@ -586,7 +582,7 @@ struct db_operations sync_db_ops = {
};
alpm_db_t *_alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
- pgp_verify_t level)
+ alpm_siglevel_t level)
{
alpm_db_t *db;
@@ -598,7 +594,7 @@ alpm_db_t *_alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
}
db->ops = &sync_db_ops;
db->handle = handle;
- db->pgp_verify = level;
+ db->siglevel = level;
if(sync_db_validate(db)) {
_alpm_db_free(db);
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index 17f26e90..af27047f 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -45,8 +45,8 @@
*/
/** Register a sync database of packages. */
-alpm_db_t SYMEXPORT *alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
- pgp_verify_t check_sig)
+alpm_db_t SYMEXPORT *alpm_db_register_sync(alpm_handle_t *handle,
+ const char *treename, alpm_siglevel_t level)
{
/* Sanity checks */
CHECK_HANDLE(handle, return NULL);
@@ -55,7 +55,7 @@ alpm_db_t SYMEXPORT *alpm_db_register_sync(alpm_handle_t *handle, const char *tr
/* Do not register a database if a transaction is on-going */
ASSERT(handle->trans == NULL, RET_ERR(handle, ALPM_ERR_TRANS_NOT_NULL, NULL));
- return _alpm_db_register_sync(handle, treename, check_sig);
+ return _alpm_db_register_sync(handle, treename, level);
}
/* Helper function for alpm_db_unregister{_all} */
@@ -220,13 +220,13 @@ const char SYMEXPORT *alpm_db_get_name(const alpm_db_t *db)
}
/** Get the signature verification level for a database. */
-pgp_verify_t SYMEXPORT alpm_db_get_sigverify_level(alpm_db_t *db)
+alpm_siglevel_t SYMEXPORT alpm_db_get_siglevel(alpm_db_t *db)
{
ASSERT(db != NULL, return -1);
- if(db->pgp_verify == PM_PGP_VERIFY_UNKNOWN) {
- return alpm_option_get_default_sigverify(db->handle);
+ if(db->siglevel & ALPM_SIG_USE_DEFAULT) {
+ return alpm_option_get_default_siglevel(db->handle);
} else {
- return db->pgp_verify;
+ return db->siglevel;
}
}
@@ -323,7 +323,7 @@ alpm_db_t *_alpm_db_new(const char *treename, int is_local)
CALLOC(db, 1, sizeof(alpm_db_t), return NULL);
STRDUP(db->treename, treename, return NULL);
db->is_local = is_local;
- db->pgp_verify = PM_PGP_VERIFY_UNKNOWN;
+ db->siglevel = 0;
return db;
}
diff --git a/lib/libalpm/db.h b/lib/libalpm/db.h
index 0f00f683..a950130e 100644
--- a/lib/libalpm/db.h
+++ b/lib/libalpm/db.h
@@ -69,7 +69,7 @@ struct __alpm_db_t {
alpm_pkghash_t *pkgcache;
alpm_list_t *grpcache;
alpm_list_t *servers;
- pgp_verify_t pgp_verify;
+ alpm_siglevel_t siglevel;
struct db_operations *ops;
};
@@ -84,7 +84,7 @@ int _alpm_db_cmp(const void *d1, const void *d2);
alpm_list_t *_alpm_db_search(alpm_db_t *db, const alpm_list_t *needles);
alpm_db_t *_alpm_db_register_local(alpm_handle_t *handle);
alpm_db_t *_alpm_db_register_sync(alpm_handle_t *handle, const char *treename,
- pgp_verify_t level);
+ alpm_siglevel_t level);
void _alpm_db_unregister(alpm_db_t *db);
/* be_*.c, backend specific calls */
diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c
index c7a1c2b2..4b4d8dff 100644
--- a/lib/libalpm/dload.c
+++ b/lib/libalpm/dload.c
@@ -363,11 +363,10 @@ char SYMEXPORT *alpm_fetch_pkgurl(alpm_handle_t *handle, const char *url)
_alpm_log(handle, ALPM_LOG_DEBUG, "successfully downloaded %s\n", url);
/* attempt to download the signature */
- if(ret == 0 && (handle->sigverify == PM_PGP_VERIFY_ALWAYS ||
- handle->sigverify == PM_PGP_VERIFY_OPTIONAL)) {
+ if(ret == 0 && (handle->siglevel & ALPM_SIG_PACKAGE)) {
char *sig_url;
size_t len;
- int errors_ok = (handle->sigverify == PM_PGP_VERIFY_OPTIONAL);
+ int errors_ok = (handle->siglevel & ALPM_SIG_PACKAGE_OPTIONAL);
len = strlen(url) + 5;
CALLOC(sig_url, len, sizeof(char), RET_ERR(handle, ALPM_ERR_MEMORY, NULL));
diff --git a/lib/libalpm/error.c b/lib/libalpm/error.c
index 8716109f..7e0e5c85 100644
--- a/lib/libalpm/error.c
+++ b/lib/libalpm/error.c
@@ -72,6 +72,8 @@ const char SYMEXPORT *alpm_strerror(enum _alpm_errno_t err)
return _("could not find database");
case ALPM_ERR_DB_INVALID:
return _("invalid or corrupted database");
+ case ALPM_ERR_DB_INVALID_SIG:
+ return _("invalid or corrupted database (PGP signature)");
case ALPM_ERR_DB_VERSION:
return _("database is incorrect version");
case ALPM_ERR_DB_WRITE:
@@ -106,7 +108,9 @@ const char SYMEXPORT *alpm_strerror(enum _alpm_errno_t err)
case ALPM_ERR_PKG_IGNORED:
return _("operation cancelled due to ignorepkg");
case ALPM_ERR_PKG_INVALID:
- return _("invalid or corrupted package");
+ return _("invalid or corrupted package (checksum)");
+ case ALPM_ERR_PKG_INVALID_SIG:
+ return _("invalid or corrupted package (PGP signature)");
case ALPM_ERR_PKG_OPEN:
return _("cannot open package file");
case ALPM_ERR_PKG_CANT_REMOVE:
@@ -118,12 +122,10 @@ const char SYMEXPORT *alpm_strerror(enum _alpm_errno_t err)
case ALPM_ERR_PKG_REPO_NOT_FOUND:
return _("could not find repository for target");
/* Signatures */
- case ALPM_ERR_SIG_MISSINGDIR:
- return _("signature directory not configured correctly");
+ case ALPM_ERR_SIG_MISSING:
+ return _("missing PGP signature");
case ALPM_ERR_SIG_INVALID:
return _("invalid PGP signature");
- case ALPM_ERR_SIG_UNKNOWN:
- return _("unknown PGP signature");
/* Deltas */
case ALPM_ERR_DLT_INVALID:
return _("invalid or corrupted delta");
diff --git a/lib/libalpm/handle.c b/lib/libalpm/handle.c
index 22f3fc8f..ddd76a25 100644
--- a/lib/libalpm/handle.c
+++ b/lib/libalpm/handle.c
@@ -45,7 +45,8 @@ alpm_handle_t *_alpm_handle_new()
CALLOC(handle, 1, sizeof(alpm_handle_t), return NULL);
- handle->sigverify = PM_PGP_VERIFY_OPTIONAL;
+ handle->siglevel = ALPM_SIG_PACKAGE | ALPM_SIG_PACKAGE_OPTIONAL |
+ ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL;
return handle;
}
@@ -574,18 +575,18 @@ int SYMEXPORT alpm_option_set_checkspace(alpm_handle_t *handle, int checkspace)
return 0;
}
-int SYMEXPORT alpm_option_set_default_sigverify(alpm_handle_t *handle, pgp_verify_t level)
+int SYMEXPORT alpm_option_set_default_siglevel(alpm_handle_t *handle,
+ alpm_siglevel_t level)
{
CHECK_HANDLE(handle, return -1);
- ASSERT(level != PM_PGP_VERIFY_UNKNOWN, RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1));
- handle->sigverify = level;
+ handle->siglevel = level;
return 0;
}
-pgp_verify_t SYMEXPORT alpm_option_get_default_sigverify(alpm_handle_t *handle)
+alpm_siglevel_t SYMEXPORT alpm_option_get_default_siglevel(alpm_handle_t *handle)
{
- CHECK_HANDLE(handle, return PM_PGP_VERIFY_UNKNOWN);
- return handle->sigverify;
+ CHECK_HANDLE(handle, return -1);
+ return handle->siglevel;
}
/* vim: set ts=2 sw=2 noet: */
diff --git a/lib/libalpm/handle.h b/lib/libalpm/handle.h
index ae8c7c8d..9e038581 100644
--- a/lib/libalpm/handle.h
+++ b/lib/libalpm/handle.h
@@ -69,7 +69,7 @@ struct __alpm_handle_t {
char *arch; /* Architecture of packages we should allow */
int usedelta; /* Download deltas if possible */
int checkspace; /* Check disk space before installing */
- pgp_verify_t sigverify; /* Default signature verification level */
+ alpm_siglevel_t siglevel; /* Default signature verification level */
/* error code */
enum _alpm_errno_t pm_errno;
diff --git a/lib/libalpm/package.h b/lib/libalpm/package.h
index b6021939..f76812b5 100644
--- a/lib/libalpm/package.h
+++ b/lib/libalpm/package.h
@@ -151,7 +151,7 @@ void _alpm_pkg_free_trans(alpm_pkg_t *pkg);
alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle, const char *pkgfile,
int full, const char *md5sum, const char *base64_sig,
- pgp_verify_t check_sig);
+ alpm_siglevel_t level);
int _alpm_pkg_cmp(const void *p1, const void *p2);
int _alpm_pkg_compare_versions(alpm_pkg_t *local_pkg, alpm_pkg_t *pkg);
diff --git a/lib/libalpm/signing.c b/lib/libalpm/signing.c
index 1ac9963a..42429e2d 100644
--- a/lib/libalpm/signing.c
+++ b/lib/libalpm/signing.c
@@ -117,9 +117,6 @@ static int init_gpgme(alpm_handle_t *handle)
}
sigdir = alpm_option_get_gpgdir(handle);
- if(!sigdir) {
- RET_ERR(handle, ALPM_ERR_SIG_MISSINGDIR, 1);
- }
/* calling gpgme_check_version() returns the current version and runs
* some internal library setup code */
@@ -196,23 +193,27 @@ error:
* Check the PGP signature for the given file path.
* If base64_sig is provided, it will be used as the signature data after
* decoding. If base64_sig is NULL, expect a signature file next to path
- * (e.g. "%s.sig"). The return value will be 0 if all checked signatures are
- * valid, 1 if there was some sort of problem (but not necessarily rejection),
- * and -1 if an error occurred while checking signatures. If 1 is returned,
- * pm_errno should be checked to see why the signatures did not pass muster.
+ * (e.g. "%s.sig").
+ *
+ * The return value will be 0 if nothing abnormal happened during the signature
+ * check, and -1 if an error occurred while checking signatures or if a
+ * signature could not be found; pm_errno will be set. Note that "abnormal"
+ * does not include a failed signature; the value in #result should be checked
+ * to determine if the signature(s) are good.
* @param handle the context handle
* @param path the full path to a file
* @param base64_sig optional PGP signature data in base64 encoding
- * @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred)
+ * @result
+ * @return 0 in normal cases, -1 if the something failed in the check process
*/
int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
- const char *base64_sig)
+ const char *base64_sig, alpm_sigresult_t *result)
{
- int ret = 0;
+ int ret = -1, sigcount;
gpgme_error_t err;
gpgme_ctx_t ctx;
gpgme_data_t filedata, sigdata;
- gpgme_verify_result_t result;
+ gpgme_verify_result_t verify_result;
gpgme_signature_t gpgsig;
char *sigpath = NULL;
unsigned char *decoded_sigdata = NULL;
@@ -222,14 +223,18 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
RET_ERR(handle, ALPM_ERR_NOT_A_FILE, -1);
}
+ if(!result) {
+ RET_ERR(handle, ALPM_ERR_WRONG_ARGS, -1);
+ }
+ result->count = 0;
+
if(!base64_sig) {
size_t len = strlen(path) + 5;
CALLOC(sigpath, len, sizeof(char), RET_ERR(handle, ALPM_ERR_MEMORY, -1));
snprintf(sigpath, len, "%s.sig", path);
if(!access(sigpath, R_OK) == 0) {
- FREE(sigpath);
- RET_ERR(handle, ALPM_ERR_SIG_UNKNOWN, -1);
+ /* sigcount is 0 */
}
}
@@ -251,7 +256,6 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
file = fopen(path, "rb");
if(file == NULL) {
handle->pm_errno = ALPM_ERR_NOT_A_FILE;
- ret = -1;
goto error;
}
err = gpgme_data_new_from_stream(&filedata, file);
@@ -264,7 +268,7 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
int decode_ret = decode_signature(base64_sig,
&decoded_sigdata, &data_len);
if(decode_ret) {
- ret = -1;
+ handle->pm_errno = ALPM_ERR_SIG_INVALID;
goto error;
}
err = gpgme_data_new_from_mem(&sigdata,
@@ -273,8 +277,7 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
/* file-based, it is on disk */
sigfile = fopen(sigpath, "rb");
if(sigfile == NULL) {
- handle->pm_errno = ALPM_ERR_NOT_A_FILE;
- ret = -1;
+ handle->pm_errno = ALPM_ERR_SIG_MISSING;
goto error;
}
err = gpgme_data_new_from_stream(&sigdata, sigfile);
@@ -284,16 +287,29 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
/* here's where the magic happens */
err = gpgme_op_verify(ctx, sigdata, filedata, NULL);
CHECK_ERR();
- result = gpgme_op_verify_result(ctx);
- gpgsig = result->signatures;
- if(!gpgsig) {
+ verify_result = gpgme_op_verify_result(ctx);
+ CHECK_ERR();
+ if(!verify_result || !verify_result->signatures) {
_alpm_log(handle, ALPM_LOG_DEBUG, "no signatures returned\n");
- ret = -1;
+ handle->pm_errno = ALPM_ERR_SIG_MISSING;
+ goto error;
+ }
+ for(gpgsig = verify_result->signatures, sigcount = 0;
+ gpgsig; gpgsig = gpgsig->next, sigcount++);
+ _alpm_log(handle, ALPM_LOG_DEBUG, "%d signatures returned\n", sigcount);
+
+ result->status = calloc(sigcount, sizeof(alpm_sigstatus_t));
+ result->uid = calloc(sigcount, sizeof(char*));
+ if(!result->status || !result->uid) {
+ handle->pm_errno = ALPM_ERR_MEMORY;
goto error;
}
+ result->count = sigcount;
- while(gpgsig) {
+ for(gpgsig = verify_result->signatures, sigcount = 0; gpgsig;
+ gpgsig = gpgsig->next, sigcount++) {
alpm_list_t *summary_list, *summary;
+ alpm_sigstatus_t status;
_alpm_log(handle, ALPM_LOG_DEBUG, "fingerprint: %s\n", gpgsig->fpr);
summary_list = list_sigsum(gpgsig->summary);
@@ -308,34 +324,53 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
string_validity(gpgsig->validity),
gpgme_strerror(gpgsig->validity_reason));
- /* Note: this is structured so any bad signature will set the return code
- * to a bad one, but good ones just leave the default value in place; e.g.
- * worst case wins out. */
+ err = gpgme_get_key(ctx, gpgsig->fpr, &key, 0);
+ if(gpg_err_code(err) == GPG_ERR_EOF) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "key lookup failed, unknown key\n");
+ err = GPG_ERR_NO_ERROR;
+ } else {
+ CHECK_ERR();
+ if(key->uids) {
+ const char *uid = key->uids->uid;
+ STRDUP(result->uid[sigcount], uid,
+ handle->pm_errno = ALPM_ERR_MEMORY; goto error);
+ _alpm_log(handle, ALPM_LOG_DEBUG, "key user: %s\n", uid);
+ }
+ gpgme_key_unref(key);
+ }
+
if(gpgsig->summary & GPGME_SIGSUM_VALID) {
/* definite good signature */
_alpm_log(handle, ALPM_LOG_DEBUG, "result: valid signature\n");
+ status = ALPM_SIGSTATUS_VALID;
} else if(gpgsig->summary & GPGME_SIGSUM_GREEN) {
/* good signature */
_alpm_log(handle, ALPM_LOG_DEBUG, "result: green signature\n");
+ status = ALPM_SIGSTATUS_VALID;
} else if(gpgsig->summary & GPGME_SIGSUM_RED) {
/* definite bad signature, error */
_alpm_log(handle, ALPM_LOG_DEBUG, "result: red signature\n");
- handle->pm_errno = ALPM_ERR_SIG_INVALID;
- ret = 1;
+ status = ALPM_SIGSTATUS_BAD;
} else if(gpgsig->summary & GPGME_SIGSUM_KEY_MISSING) {
_alpm_log(handle, ALPM_LOG_DEBUG, "result: signature from unknown key\n");
- handle->pm_errno = ALPM_ERR_SIG_UNKNOWN;
- ret = 1;
+ status = ALPM_SIGSTATUS_UNKNOWN;
+ } else if(gpgsig->summary & GPGME_SIGSUM_KEY_EXPIRED) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "result: key expired\n");
+ status = ALPM_SIGSTATUS_BAD;
+ } else if(gpgsig->summary & GPGME_SIGSUM_SIG_EXPIRED) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "result: signature expired\n");
+ status = ALPM_SIGSTATUS_BAD;
} else {
/* we'll capture everything else here */
_alpm_log(handle, ALPM_LOG_DEBUG, "result: invalid signature\n");
- handle->pm_errno = ALPM_ERR_SIG_INVALID;
- ret = 1;
+ status = ALPM_SIGSTATUS_BAD;
}
- gpgsig = gpgsig->next;
+ result->status[sigcount] = status;
}
+ ret = 0;
+
error:
gpgme_data_release(sigdata);
gpgme_data_release(filedata);
@@ -362,18 +397,77 @@ int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
}
#endif
+int _alpm_check_pgp_helper(alpm_handle_t *handle, const char *path,
+ const char *base64_sig, int optional, int marginal, int unknown,
+ enum _alpm_errno_t invalid_err)
+{
+ alpm_sigresult_t result;
+ int ret;
+
+ memset(&result, 0, sizeof(result));
+
+ _alpm_log(handle, ALPM_LOG_DEBUG, "checking signatures for %s\n", path);
+ ret = _alpm_gpgme_checksig(handle, path, base64_sig, &result);
+ if(ret && handle->pm_errno == ALPM_ERR_SIG_MISSING) {
+ if(optional) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "missing optional signature\n");
+ handle->pm_errno = 0;
+ ret = 0;
+ } else {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "missing required signature\n");
+ /* ret will already be -1 */
+ }
+ } else if(ret) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "signature check failed\n");
+ /* ret will already be -1 */
+ } else {
+ int num;
+ for(num = 0; num < result.count; num++) {
+ /* fallthrough in this case block is on purpose. if one allows unknown
+ * signatures, then a marginal signature should be allowed as well, and
+ * if neither of these are allowed we fall all the way through to bad. */
+ switch(result.status[num]) {
+ case ALPM_SIGSTATUS_VALID:
+ _alpm_log(handle, ALPM_LOG_DEBUG, "signature is valid\n");
+ break;
+ case ALPM_SIGSTATUS_MARGINAL:
+ if(marginal) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "allowing marginal signature\n");
+ break;
+ }
+ case ALPM_SIGSTATUS_UNKNOWN:
+ if(unknown) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "allowing unknown signature\n");
+ break;
+ }
+ case ALPM_SIGSTATUS_BAD:
+ default:
+ _alpm_log(handle, ALPM_LOG_DEBUG, "signature is invalid\n");
+ handle->pm_errno = invalid_err;
+ ret = -1;
+ }
+ }
+ }
+
+ free(result.status);
+ free(result.uid);
+ return ret;
+}
+
/**
* Check the PGP signature for the given package file.
* @param pkg the package to check
* @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred)
*/
-int SYMEXPORT alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg)
+int SYMEXPORT alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg,
+ alpm_sigresult_t *result)
{
ASSERT(pkg != NULL, return -1);
+ ASSERT(result != NULL, RET_ERR(pkg->handle, ALPM_ERR_WRONG_ARGS, -1));
pkg->handle->pm_errno = 0;
return _alpm_gpgme_checksig(pkg->handle, alpm_pkg_get_filename(pkg),
- pkg->base64_sig);
+ pkg->base64_sig, result);
}
/**
@@ -381,12 +475,14 @@ int SYMEXPORT alpm_pkg_check_pgp_signature(alpm_pkg_t *pkg)
* @param db the database to check
* @return a int value : 0 (valid), 1 (invalid), -1 (an error occurred)
*/
-int SYMEXPORT alpm_db_check_pgp_signature(alpm_db_t *db)
+int SYMEXPORT alpm_db_check_pgp_signature(alpm_db_t *db,
+ alpm_sigresult_t *result)
{
ASSERT(db != NULL, return -1);
+ ASSERT(result != NULL, RET_ERR(db->handle, ALPM_ERR_WRONG_ARGS, -1));
db->handle->pm_errno = 0;
- return _alpm_gpgme_checksig(db->handle, _alpm_db_path(db), NULL);
+ return _alpm_gpgme_checksig(db->handle, _alpm_db_path(db), NULL, result);
}
/* vim: set ts=2 sw=2 noet: */
diff --git a/lib/libalpm/signing.h b/lib/libalpm/signing.h
index b1b90d77..22f6357e 100644
--- a/lib/libalpm/signing.h
+++ b/lib/libalpm/signing.h
@@ -22,7 +22,10 @@
#include "alpm.h"
int _alpm_gpgme_checksig(alpm_handle_t *handle, const char *path,
- const char *base64_sig);
+ const char *base64_sig, alpm_sigresult_t *result);
+int _alpm_check_pgp_helper(alpm_handle_t *handle, const char *path,
+ const char *base64_sig, int optional, int marginal, int unknown,
+ enum _alpm_errno_t invalid_err);
#endif /* _ALPM_SIGNING_H */
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index d6b54ba0..783c7280 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -863,7 +863,7 @@ int _alpm_sync_commit(alpm_handle_t *handle, alpm_list_t **data)
int percent = (current * 100) / numtargs;
const char *filename;
char *filepath;
- pgp_verify_t check_sig;
+ alpm_siglevel_t level;
PROGRESS(trans, ALPM_TRANS_PROGRESS_INTEGRITY_START, "", percent,
numtargs, current);
@@ -874,7 +874,7 @@ int _alpm_sync_commit(alpm_handle_t *handle, alpm_list_t **data)
filename = alpm_pkg_get_filename(spkg);
filepath = _alpm_filecache_find(handle, filename);
alpm_db_t *sdb = alpm_pkg_get_db(spkg);
- check_sig = alpm_db_get_sigverify_level(sdb);
+ level = alpm_db_get_siglevel(sdb);
/* load the package file and replace pkgcache entry with it in the target list */
/* TODO: alpm_pkg_get_db() will not work on this target anymore */
@@ -882,7 +882,7 @@ int _alpm_sync_commit(alpm_handle_t *handle, alpm_list_t **data)
"replacing pkgcache entry with package file for target %s\n",
spkg->name);
alpm_pkg_t *pkgfile =_alpm_pkg_load_internal(handle, filepath, 1, spkg->md5sum,
- spkg->base64_sig, check_sig);
+ spkg->base64_sig, level);
if(!pkgfile) {
errors++;
*data = alpm_list_add(*data, strdup(filename));
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-09 03:53:47 +0100