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path: root/src/libsystemd/sd-bus/bus-error.c
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Diffstat (limited to 'src/libsystemd/sd-bus/bus-error.c')
-rw-r--r--src/libsystemd/sd-bus/bus-error.c155
1 files changed, 104 insertions, 51 deletions
diff --git a/src/libsystemd/sd-bus/bus-error.c b/src/libsystemd/sd-bus/bus-error.c
index 47f90c26f8..157b8d890a 100644
--- a/src/libsystemd/sd-bus/bus-error.c
+++ b/src/libsystemd/sd-bus/bus-error.c
@@ -32,61 +32,54 @@
#include "sd-bus.h"
#include "bus-error.h"
-#define BUS_ERROR_OOM SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_NO_MEMORY, "Out of memory")
-#define BUS_ERROR_FAILED SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FAILED, "Operation failed")
-
-SD_BUS_ERROR_MAPPING(sd_bus_standard) = {
- {"org.freedesktop.DBus.Error.Failed", EACCES},
- {"org.freedesktop.DBus.Error.NoMemory", ENOMEM},
- {"org.freedesktop.DBus.Error.ServiceUnknown", EHOSTUNREACH},
- {"org.freedesktop.DBus.Error.NameHasNoOwner", ENXIO},
- {"org.freedesktop.DBus.Error.NoReply", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.IOError", EIO},
- {"org.freedesktop.DBus.Error.BadAddress", EADDRNOTAVAIL},
- {"org.freedesktop.DBus.Error.NotSupported", ENOTSUP},
- {"org.freedesktop.DBus.Error.LimitsExceeded", ENOBUFS},
- {"org.freedesktop.DBus.Error.AccessDenied", EACCES},
- {"org.freedesktop.DBus.Error.AuthFailed", EACCES},
- {"org.freedesktop.DBus.Error.InteractiveAuthorizationRequired", EACCES},
- {"org.freedesktop.DBus.Error.NoServer", EHOSTDOWN},
- {"org.freedesktop.DBus.Error.Timeout", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.NoNetwork", ENONET},
- {"org.freedesktop.DBus.Error.AddressInUse", EADDRINUSE},
- {"org.freedesktop.DBus.Error.Disconnected", ECONNRESET},
- {"org.freedesktop.DBus.Error.InvalidArgs", EINVAL},
- {"org.freedesktop.DBus.Error.FileNotFound", ENOENT},
- {"org.freedesktop.DBus.Error.FileExists", EEXIST},
- {"org.freedesktop.DBus.Error.UnknownMethod", EBADR},
- {"org.freedesktop.DBus.Error.UnknownObject", EBADR},
- {"org.freedesktop.DBus.Error.UnknownInterface", EBADR},
- {"org.freedesktop.DBus.Error.UnknownProperty", EBADR},
- {"org.freedesktop.DBus.Error.PropertyReadOnly", EROFS},
- {"org.freedesktop.DBus.Error.UnixProcessIdUnknown", ESRCH},
- {"org.freedesktop.DBus.Error.InvalidSignature", EINVAL},
- {"org.freedesktop.DBus.Error.InconsistentMessage", EBADMSG},
-
- {"org.freedesktop.DBus.Error.TimedOut", ETIMEDOUT},
- {"org.freedesktop.DBus.Error.MatchRuleInvalid", EINVAL},
- {"org.freedesktop.DBus.Error.InvalidFileContent", EINVAL},
- {"org.freedesktop.DBus.Error.MatchRuleNotFound", ENOENT},
- {"org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown", ESRCH},
- {"org.freedesktop.DBus.Error.ObjectPathInUse", EBUSY},
+BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map standard_errors[] = {
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Failed", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoMemory", ENOMEM),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.ServiceUnknown", EHOSTUNREACH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NameHasNoOwner", ENXIO),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoReply", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.IOError", EIO),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.BadAddress", EADDRNOTAVAIL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NotSupported", ENOTSUP),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.LimitsExceeded", ENOBUFS),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AccessDenied", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AuthFailed", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InteractiveAuthorizationRequired", EACCES),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoServer", EHOSTDOWN),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Timeout", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.NoNetwork", ENONET),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.AddressInUse", EADDRINUSE),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Disconnected", ECONNRESET),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidArgs", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.FileNotFound", ENOENT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.FileExists", EEXIST),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownMethod", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownObject", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownInterface", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnknownProperty", EBADR),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.PropertyReadOnly", EROFS),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.UnixProcessIdUnknown", ESRCH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidSignature", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InconsistentMessage", EBADMSG),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.TimedOut", ETIMEDOUT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.MatchRuleInvalid", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.InvalidFileContent", EINVAL),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.MatchRuleNotFound", ENOENT),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown", ESRCH),
+ SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.ObjectPathInUse", EBUSY),
+ SD_BUS_ERROR_MAP_END
};
-extern const sd_bus_name_error_mapping __start_sd_bus_errnomap[];
-extern const sd_bus_name_error_mapping __stop_sd_bus_errnomap[];
+/* GCC maps this magically to the beginning and end of the BUS_ERROR_MAP section */
+extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
+extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
-static int bus_error_mapping_lookup(const char *name, size_t len) {
- const sd_bus_name_error_mapping *m;
-
- for (m = __start_sd_bus_errnomap; m < __stop_sd_bus_errnomap; m++)
- if (m->name && strneq(m->name, name, len))
- return m->code;
-
- return EIO;
-}
+/* Additional maps registered with sd_bus_error_add_map() are in this
+ * NULL terminated array */
+static const sd_bus_error_map **additional_error_maps = NULL;
static int bus_error_name_to_errno(const char *name) {
+ const sd_bus_error_map **map, *m;
const char *p;
int r;
@@ -102,7 +95,39 @@ static int bus_error_name_to_errno(const char *name) {
return r;
}
- return bus_error_mapping_lookup(name, strlen(name));
+ if (additional_error_maps) {
+ for (map = additional_error_maps; *map; map++) {
+ for (m = *map;; m++) {
+ /* For additional error maps the end marker is actually the end marker */
+ if (m->code == BUS_ERROR_MAP_END_MARKER)
+ break;
+
+ if (streq(m->name, name))
+ return m->code;
+ }
+ }
+ }
+
+ m = __start_BUS_ERROR_MAP;
+ while (m < __stop_BUS_ERROR_MAP) {
+ /* For magic ELF error maps, the end marker might
+ * appear in the middle of things, since multiple maps
+ * might appear in the same section. Hence, let's skip
+ * over it, but realign the pointer to the netx 8byte
+ * boundary, which is the selected alignment for the
+ * arrays. */
+ if (m->code == BUS_ERROR_MAP_END_MARKER) {
+ m = ALIGN8_PTR(m+1);
+ continue;
+ }
+
+ if (streq(m->name, name))
+ return m->code;
+
+ m++;
+ }
+
+ return EIO;
}
static sd_bus_error errno_to_bus_error_const(int error) {
@@ -552,3 +577,31 @@ const char *bus_error_message(const sd_bus_error *e, int error) {
return strerror(error);
}
+
+_public_ int sd_bus_error_add_map(const sd_bus_error_map *map) {
+ const sd_bus_error_map **maps = NULL;
+ unsigned n = 0;
+
+ assert_return(map, -EINVAL);
+
+ if (additional_error_maps) {
+ for (;; n++) {
+ if (additional_error_maps[n] == NULL)
+ break;
+
+ if (additional_error_maps[n] == map)
+ return 0;
+ }
+ }
+
+ maps = realloc_multiply(additional_error_maps, sizeof(struct sd_bus_error_map*), n + 2);
+ if (!maps)
+ return -ENOMEM;
+
+
+ maps[n] = map;
+ maps[n+1] = NULL;
+
+ additional_error_maps = maps;
+ return 1;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-24 04:07:24 +0000