bus-proxy: factor out code for driver handling and message synthesis
Move synthesize_*() into synthesize.c and bus_proxy_process_driver() into driver.c for better code separation.
This commit is contained in:
Daniel Mack
+5
-1
@@ -2676,7 +2676,11 @@ systemd_run_LDADD = \
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systemd_bus_proxyd_SOURCES = \
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src/bus-proxyd/bus-proxyd.c \
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src/bus-proxyd/bus-xml-policy.c \
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src/bus-proxyd/bus-xml-policy.h
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src/bus-proxyd/bus-xml-policy.h \
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src/bus-proxyd/driver.c \
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src/bus-proxyd/driver.h \
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src/bus-proxyd/synthesize.c \
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src/bus-proxyd/synthesize.h
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systemd_bus_proxyd_LDADD = \
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libsystemd-internal.la \
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+70
-731
@@ -48,6 +48,8 @@
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#include "smack-util.h"
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#include "set.h"
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#include "bus-xml-policy.h"
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#include "driver.h"
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#include "synthesize.h"
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static char *arg_address = NULL;
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static char *arg_command_line_buffer = NULL;
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@@ -245,736 +247,6 @@ static int rename_service(sd_bus *a, sd_bus *b) {
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return 0;
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}
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static int synthesize_name_acquired(sd_bus *a, sd_bus *b, sd_bus_message *m) {
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_cleanup_bus_message_unref_ sd_bus_message *n = NULL;
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const char *name, *old_owner, *new_owner;
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int r;
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assert(a);
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assert(b);
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assert(m);
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/* If we get NameOwnerChanged for our own name, we need to
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* synthesize NameLost/NameAcquired, since socket clients need
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* that, even though it is obsoleted on kdbus */
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if (!a->is_kernel)
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return 0;
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if (!sd_bus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged") ||
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!streq_ptr(m->path, "/org/freedesktop/DBus") ||
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!streq_ptr(m->sender, "org.freedesktop.DBus"))
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return 0;
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r = sd_bus_message_read(m, "sss", &name, &old_owner, &new_owner);
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if (r < 0)
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return r;
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r = sd_bus_message_rewind(m, true);
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if (r < 0)
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return r;
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if (streq(old_owner, a->unique_name)) {
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r = sd_bus_message_new_signal(
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b,
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&n,
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"/org/freedesktop/DBus",
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"org.freedesktop.DBus",
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"NameLost");
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} else if (streq(new_owner, a->unique_name)) {
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r = sd_bus_message_new_signal(
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b,
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&n,
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"/org/freedesktop/DBus",
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"org.freedesktop.DBus",
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"NameAcquired");
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} else
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return 0;
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if (r < 0)
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return r;
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r = sd_bus_message_append(n, "s", name);
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if (r < 0)
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return r;
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r = bus_message_append_sender(n, "org.freedesktop.DBus");
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if (r < 0)
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return r;
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r = bus_seal_synthetic_message(b, n);
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if (r < 0)
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return r;
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return sd_bus_send(b, n, NULL);
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}
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static int synthetic_driver_send(sd_bus *b, sd_bus_message *m) {
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int r;
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assert(b);
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assert(m);
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r = bus_message_append_sender(m, "org.freedesktop.DBus");
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if (r < 0)
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return r;
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r = bus_seal_synthetic_message(b, m);
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if (r < 0)
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return r;
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return sd_bus_send(b, m, NULL);
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}
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static int synthetic_reply_method_error(sd_bus_message *call, const sd_bus_error *e) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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int r;
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assert(call);
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if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
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return 0;
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r = sd_bus_message_new_method_error(call, &m, e);
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if (r < 0)
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return r;
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return synthetic_driver_send(call->bus, m);
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}
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static int synthetic_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) {
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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va_list ap;
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va_start(ap, format);
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bus_error_setfv(&error, name, format, ap);
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va_end(ap);
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return synthetic_reply_method_error(call, &error);
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}
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static int synthetic_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *p) {
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_cleanup_bus_error_free_ sd_bus_error berror = SD_BUS_ERROR_NULL;
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assert(call);
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if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
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return 0;
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if (sd_bus_error_is_set(p))
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return synthetic_reply_method_error(call, p);
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sd_bus_error_set_errno(&berror, error);
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return synthetic_reply_method_error(call, &berror);
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}
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static int synthetic_reply_method_return(sd_bus_message *call, const char *types, ...) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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int r;
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assert(call);
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if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
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return 0;
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r = sd_bus_message_new_method_return(call, &m);
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if (r < 0)
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return r;
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if (!isempty(types)) {
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va_list ap;
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va_start(ap, types);
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r = bus_message_append_ap(m, types, ap);
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va_end(ap);
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if (r < 0)
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return r;
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}
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return synthetic_driver_send(call->bus, m);
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}
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static int synthetic_reply_return_strv(sd_bus_message *call, char **l) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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int r;
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assert(call);
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if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
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return 0;
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r = sd_bus_message_new_method_return(call, &m);
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if (r < 0)
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return synthetic_reply_method_errno(call, r, NULL);
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r = sd_bus_message_append_strv(m, l);
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if (r < 0)
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return synthetic_reply_method_errno(call, r, NULL);
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return synthetic_driver_send(call->bus, m);
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}
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static int get_creds_by_name(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
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_cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
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int r;
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assert(bus);
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assert(name);
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assert(_creds);
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r = sd_bus_get_name_creds(bus, name, mask, &c);
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if (r == -ESRCH || r == -ENXIO)
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return sd_bus_error_setf(error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Name %s is currently not owned by anyone.", name);
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if (r < 0)
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return r;
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if ((c->mask & mask) != mask)
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return -ENOTSUP;
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*_creds = c;
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c = NULL;
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return 0;
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}
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static int get_creds_by_message(sd_bus *bus, sd_bus_message *m, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
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const char *name;
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int r;
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assert(bus);
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assert(m);
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assert(_creds);
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r = sd_bus_message_read(m, "s", &name);
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if (r < 0)
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return r;
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return get_creds_by_name(bus, name, mask, _creds, error);
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}
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static int process_driver(sd_bus *a, sd_bus *b, sd_bus_message *m, Policy *policy, const struct ucred *ucred, Set *owned_names) {
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int r;
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assert(a);
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assert(b);
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assert(m);
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if (!a->is_kernel)
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return 0;
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if (!streq_ptr(sd_bus_message_get_destination(m), "org.freedesktop.DBus"))
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return 0;
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/* The "Hello()" call is is handled in process_hello() */
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if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
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if (!sd_bus_message_has_signature(m, ""))
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
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return synthetic_reply_method_return(m, "s",
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"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\" "
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"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
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"<node>\n"
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" <interface name=\"org.freedesktop.DBus.Introspectable\">\n"
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" <method name=\"Introspect\">\n"
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" <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"
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" </method>\n"
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" </interface>\n"
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" <interface name=\"org.freedesktop.DBus\">\n"
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" <method name=\"AddMatch\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" </method>\n"
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" <method name=\"RemoveMatch\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" </method>\n"
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" <method name=\"GetConnectionSELinuxSecurityContext\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"ay\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"GetConnectionUnixProcessID\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"GetConnectionUnixUser\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"GetId\">\n"
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" <arg type=\"s\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"GetNameOwner\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"s\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"Hello\">\n"
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" <arg type=\"s\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"ListActivatableNames\">\n"
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" <arg type=\"as\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"ListNames\">\n"
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" <arg type=\"as\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"ListQueuedOwners\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"as\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"NameHasOwner\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"b\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"ReleaseName\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"ReloadConfig\">\n"
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" </method>\n"
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" <method name=\"RequestName\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"StartServiceByName\">\n"
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" <arg type=\"s\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"in\"/>\n"
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" <arg type=\"u\" direction=\"out\"/>\n"
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" </method>\n"
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" <method name=\"UpdateActivationEnvironment\">\n"
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" <arg type=\"a{ss}\" direction=\"in\"/>\n"
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" </method>\n"
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" <signal name=\"NameAcquired\">\n"
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" <arg type=\"s\"/>\n"
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" </signal>\n"
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" <signal name=\"NameLost\">\n"
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" <arg type=\"s\"/>\n"
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" </signal>\n"
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" <signal name=\"NameOwnerChanged\">\n"
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" <arg type=\"s\"/>\n"
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" <arg type=\"s\"/>\n"
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" <arg type=\"s\"/>\n"
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" </signal>\n"
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" </interface>\n"
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"</node>\n");
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} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "AddMatch")) {
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const char *match;
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if (!sd_bus_message_has_signature(m, "s"))
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
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r = sd_bus_message_read(m, "s", &match);
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if (r < 0)
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return synthetic_reply_method_errno(m, r, NULL);
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r = sd_bus_add_match(a, NULL, match, NULL, NULL);
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if (r < 0)
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return synthetic_reply_method_errno(m, r, NULL);
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return synthetic_reply_method_return(m, NULL);
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} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RemoveMatch")) {
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const char *match;
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if (!sd_bus_message_has_signature(m, "s"))
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
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r = sd_bus_message_read(m, "s", &match);
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if (r < 0)
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return synthetic_reply_method_errno(m, r, NULL);
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r = bus_remove_match_by_string(a, match, NULL, NULL);
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if (r == 0)
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_MATCH_RULE_NOT_FOUND, "Match rule not found"));
|
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if (r < 0)
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return synthetic_reply_method_errno(m, r, NULL);
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return synthetic_reply_method_return(m, NULL);
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} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionSELinuxSecurityContext")) {
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_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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if (!sd_bus_message_has_signature(m, "s"))
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
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r = get_creds_by_message(a, m, SD_BUS_CREDS_SELINUX_CONTEXT, &creds, &error);
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if (r < 0)
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return synthetic_reply_method_errno(m, r, &error);
|
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|
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return synthetic_reply_method_return(m, "y", creds->label, strlen(creds->label));
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixProcessID")) {
|
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_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
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if (!sd_bus_message_has_signature(m, "s"))
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
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r = get_creds_by_message(a, m, SD_BUS_CREDS_PID, &creds, &error);
|
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if (r < 0)
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return synthetic_reply_method_errno(m, r, &error);
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||||
|
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return synthetic_reply_method_return(m, "u", (uint32_t) creds->pid);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixUser")) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
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if (!sd_bus_message_has_signature(m, "s"))
|
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return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
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r = get_creds_by_message(a, m, SD_BUS_CREDS_UID, &creds, &error);
|
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if (r < 0)
|
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return synthetic_reply_method_errno(m, r, &error);
|
||||
|
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return synthetic_reply_method_return(m, "u", (uint32_t) creds->uid);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetId")) {
|
||||
sd_id128_t server_id;
|
||||
char buf[SD_ID128_STRING_MAX];
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_get_bus_id(a, &server_id);
|
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if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "s", sd_id128_to_string(server_id, buf));
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetNameOwner")) {
|
||||
const char *name;
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "s", "org.freedesktop.DBus");
|
||||
|
||||
r = get_creds_by_name(a, name, SD_BUS_CREDS_UNIQUE_NAME, &creds, &error);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
return synthetic_reply_method_return(m, "s", creds->unique_name);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListActivatableNames")) {
|
||||
_cleanup_strv_free_ char **names = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_list_names(a, NULL, &names);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
/* Let's sort the names list to make it stable */
|
||||
strv_sort(names);
|
||||
|
||||
return synthetic_reply_return_strv(m, names);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListNames")) {
|
||||
_cleanup_strv_free_ char **names = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_list_names(a, &names, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = strv_extend(&names, "org.freedesktop.DBus");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
/* Let's sort the names list to make it stable */
|
||||
strv_sort(names);
|
||||
|
||||
return synthetic_reply_return_strv(m, names);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListQueuedOwners")) {
|
||||
struct kdbus_cmd_name_list cmd = {};
|
||||
struct kdbus_name_list *name_list;
|
||||
struct kdbus_name_info *name;
|
||||
_cleanup_strv_free_ char **owners = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
char *arg0;
|
||||
int err = 0;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &arg0);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_get_name_creds(a, arg0, 0, NULL);
|
||||
if (r == -ESRCH || r == -ENXIO) {
|
||||
sd_bus_error_setf(&error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Could not get owners of name '%s': no such name.", arg0);
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
}
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
cmd.flags = KDBUS_NAME_LIST_QUEUED;
|
||||
r = ioctl(a->input_fd, KDBUS_CMD_NAME_LIST, &cmd);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, -errno, NULL);
|
||||
|
||||
name_list = (struct kdbus_name_list *) ((uint8_t *) a->kdbus_buffer + cmd.offset);
|
||||
|
||||
KDBUS_ITEM_FOREACH(name, name_list, names) {
|
||||
const char *entry_name = NULL;
|
||||
struct kdbus_item *item;
|
||||
char *n;
|
||||
|
||||
KDBUS_ITEM_FOREACH(item, name, items)
|
||||
if (item->type == KDBUS_ITEM_OWNED_NAME)
|
||||
entry_name = item->name.name;
|
||||
|
||||
if (!streq_ptr(entry_name, arg0))
|
||||
continue;
|
||||
|
||||
if (asprintf(&n, ":1.%llu", (unsigned long long) name->owner_id) < 0) {
|
||||
err = -ENOMEM;
|
||||
break;
|
||||
}
|
||||
|
||||
r = strv_consume(&owners, n);
|
||||
if (r < 0) {
|
||||
err = r;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
r = bus_kernel_cmd_free(a, cmd.offset);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (err < 0)
|
||||
return synthetic_reply_method_errno(m, err, NULL);
|
||||
|
||||
return synthetic_reply_return_strv(m, owners);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "NameHasOwner")) {
|
||||
const char *name;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "b", true);
|
||||
|
||||
r = sd_bus_get_name_creds(a, name, 0, NULL);
|
||||
if (r < 0 && r != -ESRCH && r != -ENXIO)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "b", r >= 0);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReleaseName")) {
|
||||
const char *name;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_release_name(a, name);
|
||||
if (r < 0) {
|
||||
if (r == -ESRCH)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_NON_EXISTENT);
|
||||
if (r == -EADDRINUSE)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_NOT_OWNER);
|
||||
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
set_remove(owned_names, (char*) name);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_RELEASED);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReloadConfig")) {
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_error_setf(&error, SD_BUS_ERROR_NOT_SUPPORTED, "%s() is not supported", sd_bus_message_get_member(m));
|
||||
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RequestName")) {
|
||||
const char *name;
|
||||
uint32_t flags, param;
|
||||
bool in_queue;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "su"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "su", &name, &flags);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (policy && !policy_check_own(policy, ucred->uid, ucred->gid, name))
|
||||
return synthetic_reply_method_errno(m, -EPERM, NULL);
|
||||
|
||||
if ((flags & ~(BUS_NAME_ALLOW_REPLACEMENT|BUS_NAME_REPLACE_EXISTING|BUS_NAME_DO_NOT_QUEUE)) != 0)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
param = 0;
|
||||
if (flags & BUS_NAME_ALLOW_REPLACEMENT)
|
||||
param |= SD_BUS_NAME_ALLOW_REPLACEMENT;
|
||||
if (flags & BUS_NAME_REPLACE_EXISTING)
|
||||
param |= SD_BUS_NAME_REPLACE_EXISTING;
|
||||
if (!(flags & BUS_NAME_DO_NOT_QUEUE))
|
||||
param |= SD_BUS_NAME_QUEUE;
|
||||
|
||||
r = set_put_strdup(owned_names, name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_request_name(a, name, param);
|
||||
if (r < 0) {
|
||||
if (r == -EALREADY)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_ALREADY_OWNER);
|
||||
|
||||
set_remove(owned_names, (char*) name);
|
||||
|
||||
if (r == -EEXIST)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_EXISTS);
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
in_queue = (r == 0);
|
||||
|
||||
if (in_queue)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_IN_QUEUE);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_PRIMARY_OWNER);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "StartServiceByName")) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
|
||||
const char *name;
|
||||
uint32_t flags;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "su"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "su", &name, &flags);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (flags != 0)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
r = sd_bus_get_name_creds(a, name, 0, NULL);
|
||||
if (r >= 0 || streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_ALREADY_RUNNING);
|
||||
if (r != -ESRCH)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_new_method_call(
|
||||
a,
|
||||
&msg,
|
||||
name,
|
||||
"/",
|
||||
"org.freedesktop.DBus.Peer",
|
||||
"Ping");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_send(a, msg, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "UpdateActivationEnvironment")) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
|
||||
_cleanup_strv_free_ char **args = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "a{ss}"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{ss}");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "ss")) > 0) {
|
||||
_cleanup_free_ char *s = NULL;
|
||||
const char *key;
|
||||
const char *value;
|
||||
|
||||
r = sd_bus_message_read(m, "ss", &key, &value);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
s = strjoin(key, "=", value, NULL);
|
||||
if (!s)
|
||||
return synthetic_reply_method_errno(m, -ENOMEM, NULL);
|
||||
|
||||
r = strv_extend(&args, s);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_exit_container(m);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
r = sd_bus_message_exit_container(m);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (!args)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
r = sd_bus_message_new_method_call(
|
||||
a,
|
||||
&msg,
|
||||
"org.freedesktop.systemd1",
|
||||
"/org/freedesktop/systemd1",
|
||||
"org.freedesktop.systemd1.Manager",
|
||||
"SetEnvironment");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_append_strv(msg, args);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_call(a, msg, 0, NULL, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, NULL);
|
||||
|
||||
} else {
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
r = sd_bus_error_setf(&error, SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method '%s'.", m->member);
|
||||
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
}
|
||||
}
|
||||
|
||||
static int handle_policy_error(sd_bus_message *m, int r) {
|
||||
if (r == -ESRCH || r == -ENXIO)
|
||||
return synthetic_reply_method_errorf(m, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Name %s is currently not owned by anyone.", m->destination);
|
||||
@@ -1315,6 +587,73 @@ static int mac_smack_apply_label_and_drop_cap_mac_admin(pid_t its_pid, const cha
|
||||
#endif
|
||||
}
|
||||
|
||||
static int synthesize_name_acquired(sd_bus *a, sd_bus *b, sd_bus_message *m) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *n = NULL;
|
||||
const char *name, *old_owner, *new_owner;
|
||||
int r;
|
||||
|
||||
assert(a);
|
||||
assert(b);
|
||||
assert(m);
|
||||
|
||||
/* If we get NameOwnerChanged for our own name, we need to
|
||||
* synthesize NameLost/NameAcquired, since socket clients need
|
||||
* that, even though it is obsoleted on kdbus */
|
||||
|
||||
if (!a->is_kernel)
|
||||
return 0;
|
||||
|
||||
if (!sd_bus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged") ||
|
||||
!streq_ptr(m->path, "/org/freedesktop/DBus") ||
|
||||
!streq_ptr(m->sender, "org.freedesktop.DBus"))
|
||||
return 0;
|
||||
|
||||
r = sd_bus_message_read(m, "sss", &name, &old_owner, &new_owner);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_message_rewind(m, true);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if (streq(old_owner, a->unique_name)) {
|
||||
|
||||
r = sd_bus_message_new_signal(
|
||||
b,
|
||||
&n,
|
||||
"/org/freedesktop/DBus",
|
||||
"org.freedesktop.DBus",
|
||||
"NameLost");
|
||||
|
||||
} else if (streq(new_owner, a->unique_name)) {
|
||||
|
||||
r = sd_bus_message_new_signal(
|
||||
b,
|
||||
&n,
|
||||
"/org/freedesktop/DBus",
|
||||
"org.freedesktop.DBus",
|
||||
"NameAcquired");
|
||||
} else
|
||||
return 0;
|
||||
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_message_append(n, "s", name);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = bus_message_append_sender(n, "org.freedesktop.DBus");
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = bus_seal_synthetic_message(b, n);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
return sd_bus_send(b, n, NULL);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
|
||||
_cleanup_bus_close_unref_ sd_bus *a = NULL, *b = NULL;
|
||||
@@ -1717,7 +1056,7 @@ int main(int argc, char *argv[]) {
|
||||
}
|
||||
|
||||
if (!processed) {
|
||||
k = process_driver(a, b, m, policy, &ucred, owned_names);
|
||||
k = bus_proxy_process_driver(a, b, m, policy, &ucred, owned_names);
|
||||
if (k < 0) {
|
||||
r = k;
|
||||
log_error_errno(r, "Failed to process driver calls: %m");
|
||||
|
||||
@@ -0,0 +1,599 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2010 Lennart Poettering
|
||||
Copyright 2013 Daniel Mack
|
||||
Copyright 2014 Kay Sievers
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
***/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <stddef.h>
|
||||
|
||||
#include "log.h"
|
||||
#include "util.h"
|
||||
#include "sd-bus.h"
|
||||
#include "bus-internal.h"
|
||||
#include "bus-message.h"
|
||||
#include "bus-util.h"
|
||||
#include "build.h"
|
||||
#include "strv.h"
|
||||
#include "def.h"
|
||||
#include "capability.h"
|
||||
#include "bus-control.h"
|
||||
#include "set.h"
|
||||
#include "driver.h"
|
||||
#include "synthesize.h"
|
||||
|
||||
static int get_creds_by_name(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
|
||||
int r;
|
||||
|
||||
assert(bus);
|
||||
assert(name);
|
||||
assert(_creds);
|
||||
|
||||
r = sd_bus_get_name_creds(bus, name, mask, &c);
|
||||
if (r == -ESRCH || r == -ENXIO)
|
||||
return sd_bus_error_setf(error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Name %s is currently not owned by anyone.", name);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if ((c->mask & mask) != mask)
|
||||
return -ENOTSUP;
|
||||
|
||||
*_creds = c;
|
||||
c = NULL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int get_creds_by_message(sd_bus *bus, sd_bus_message *m, uint64_t mask, sd_bus_creds **_creds, sd_bus_error *error) {
|
||||
const char *name;
|
||||
int r;
|
||||
|
||||
assert(bus);
|
||||
assert(m);
|
||||
assert(_creds);
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
return get_creds_by_name(bus, name, mask, _creds, error);
|
||||
}
|
||||
|
||||
int bus_proxy_process_driver(sd_bus *a, sd_bus *b, sd_bus_message *m, Policy *policy, const struct ucred *ucred, Set *owned_names) {
|
||||
int r;
|
||||
|
||||
assert(a);
|
||||
assert(b);
|
||||
assert(m);
|
||||
|
||||
if (!a->is_kernel)
|
||||
return 0;
|
||||
|
||||
if (!streq_ptr(sd_bus_message_get_destination(m), "org.freedesktop.DBus"))
|
||||
return 0;
|
||||
|
||||
/* The "Hello()" call is is handled in process_hello() */
|
||||
|
||||
if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
return synthetic_reply_method_return(m, "s",
|
||||
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\" "
|
||||
"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
|
||||
"<node>\n"
|
||||
" <interface name=\"org.freedesktop.DBus.Introspectable\">\n"
|
||||
" <method name=\"Introspect\">\n"
|
||||
" <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" </interface>\n"
|
||||
" <interface name=\"org.freedesktop.DBus\">\n"
|
||||
" <method name=\"AddMatch\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"RemoveMatch\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"GetConnectionSELinuxSecurityContext\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"ay\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"GetConnectionUnixProcessID\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"GetConnectionUnixUser\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"GetId\">\n"
|
||||
" <arg type=\"s\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"GetNameOwner\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"s\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"Hello\">\n"
|
||||
" <arg type=\"s\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"ListActivatableNames\">\n"
|
||||
" <arg type=\"as\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"ListNames\">\n"
|
||||
" <arg type=\"as\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"ListQueuedOwners\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"as\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"NameHasOwner\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"b\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"ReleaseName\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"ReloadConfig\">\n"
|
||||
" </method>\n"
|
||||
" <method name=\"RequestName\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"StartServiceByName\">\n"
|
||||
" <arg type=\"s\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"in\"/>\n"
|
||||
" <arg type=\"u\" direction=\"out\"/>\n"
|
||||
" </method>\n"
|
||||
" <method name=\"UpdateActivationEnvironment\">\n"
|
||||
" <arg type=\"a{ss}\" direction=\"in\"/>\n"
|
||||
" </method>\n"
|
||||
" <signal name=\"NameAcquired\">\n"
|
||||
" <arg type=\"s\"/>\n"
|
||||
" </signal>\n"
|
||||
" <signal name=\"NameLost\">\n"
|
||||
" <arg type=\"s\"/>\n"
|
||||
" </signal>\n"
|
||||
" <signal name=\"NameOwnerChanged\">\n"
|
||||
" <arg type=\"s\"/>\n"
|
||||
" <arg type=\"s\"/>\n"
|
||||
" <arg type=\"s\"/>\n"
|
||||
" </signal>\n"
|
||||
" </interface>\n"
|
||||
"</node>\n");
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "AddMatch")) {
|
||||
const char *match;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &match);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_add_match(a, NULL, match, NULL, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, NULL);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RemoveMatch")) {
|
||||
const char *match;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &match);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = bus_remove_match_by_string(a, match, NULL, NULL);
|
||||
if (r == 0)
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_MATCH_RULE_NOT_FOUND, "Match rule not found"));
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, NULL);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionSELinuxSecurityContext")) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = get_creds_by_message(a, m, SD_BUS_CREDS_SELINUX_CONTEXT, &creds, &error);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
return synthetic_reply_method_return(m, "y", creds->label, strlen(creds->label));
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixProcessID")) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = get_creds_by_message(a, m, SD_BUS_CREDS_PID, &creds, &error);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", (uint32_t) creds->pid);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetConnectionUnixUser")) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = get_creds_by_message(a, m, SD_BUS_CREDS_UID, &creds, &error);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", (uint32_t) creds->uid);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetId")) {
|
||||
sd_id128_t server_id;
|
||||
char buf[SD_ID128_STRING_MAX];
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_get_bus_id(a, &server_id);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "s", sd_id128_to_string(server_id, buf));
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "GetNameOwner")) {
|
||||
const char *name;
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "s", "org.freedesktop.DBus");
|
||||
|
||||
r = get_creds_by_name(a, name, SD_BUS_CREDS_UNIQUE_NAME, &creds, &error);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
return synthetic_reply_method_return(m, "s", creds->unique_name);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListActivatableNames")) {
|
||||
_cleanup_strv_free_ char **names = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_list_names(a, NULL, &names);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
/* Let's sort the names list to make it stable */
|
||||
strv_sort(names);
|
||||
|
||||
return synthetic_reply_return_strv(m, names);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListNames")) {
|
||||
_cleanup_strv_free_ char **names = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_list_names(a, &names, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = strv_extend(&names, "org.freedesktop.DBus");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
/* Let's sort the names list to make it stable */
|
||||
strv_sort(names);
|
||||
|
||||
return synthetic_reply_return_strv(m, names);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ListQueuedOwners")) {
|
||||
struct kdbus_cmd_name_list cmd = {};
|
||||
struct kdbus_name_list *name_list;
|
||||
struct kdbus_name_info *name;
|
||||
_cleanup_strv_free_ char **owners = NULL;
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
char *arg0;
|
||||
int err = 0;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &arg0);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_get_name_creds(a, arg0, 0, NULL);
|
||||
if (r == -ESRCH || r == -ENXIO) {
|
||||
sd_bus_error_setf(&error, SD_BUS_ERROR_NAME_HAS_NO_OWNER, "Could not get owners of name '%s': no such name.", arg0);
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
}
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
cmd.flags = KDBUS_NAME_LIST_QUEUED;
|
||||
r = ioctl(a->input_fd, KDBUS_CMD_NAME_LIST, &cmd);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, -errno, NULL);
|
||||
|
||||
name_list = (struct kdbus_name_list *) ((uint8_t *) a->kdbus_buffer + cmd.offset);
|
||||
|
||||
KDBUS_ITEM_FOREACH(name, name_list, names) {
|
||||
const char *entry_name = NULL;
|
||||
struct kdbus_item *item;
|
||||
char *n;
|
||||
|
||||
KDBUS_ITEM_FOREACH(item, name, items)
|
||||
if (item->type == KDBUS_ITEM_OWNED_NAME)
|
||||
entry_name = item->name.name;
|
||||
|
||||
if (!streq_ptr(entry_name, arg0))
|
||||
continue;
|
||||
|
||||
if (asprintf(&n, ":1.%llu", (unsigned long long) name->owner_id) < 0) {
|
||||
err = -ENOMEM;
|
||||
break;
|
||||
}
|
||||
|
||||
r = strv_consume(&owners, n);
|
||||
if (r < 0) {
|
||||
err = r;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
r = bus_kernel_cmd_free(a, cmd.offset);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (err < 0)
|
||||
return synthetic_reply_method_errno(m, err, NULL);
|
||||
|
||||
return synthetic_reply_return_strv(m, owners);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "NameHasOwner")) {
|
||||
const char *name;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "b", true);
|
||||
|
||||
r = sd_bus_get_name_creds(a, name, 0, NULL);
|
||||
if (r < 0 && r != -ESRCH && r != -ENXIO)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "b", r >= 0);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReleaseName")) {
|
||||
const char *name;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "s"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "s", &name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_release_name(a, name);
|
||||
if (r < 0) {
|
||||
if (r == -ESRCH)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_NON_EXISTENT);
|
||||
if (r == -EADDRINUSE)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_NOT_OWNER);
|
||||
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
set_remove(owned_names, (char*) name);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_RELEASED);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "ReloadConfig")) {
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, ""))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_error_setf(&error, SD_BUS_ERROR_NOT_SUPPORTED, "%s() is not supported", sd_bus_message_get_member(m));
|
||||
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "RequestName")) {
|
||||
const char *name;
|
||||
uint32_t flags, param;
|
||||
bool in_queue;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "su"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "su", &name, &flags);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (policy && !policy_check_own(policy, ucred->uid, ucred->gid, name))
|
||||
return synthetic_reply_method_errno(m, -EPERM, NULL);
|
||||
|
||||
if ((flags & ~(BUS_NAME_ALLOW_REPLACEMENT|BUS_NAME_REPLACE_EXISTING|BUS_NAME_DO_NOT_QUEUE)) != 0)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
param = 0;
|
||||
if (flags & BUS_NAME_ALLOW_REPLACEMENT)
|
||||
param |= SD_BUS_NAME_ALLOW_REPLACEMENT;
|
||||
if (flags & BUS_NAME_REPLACE_EXISTING)
|
||||
param |= SD_BUS_NAME_REPLACE_EXISTING;
|
||||
if (!(flags & BUS_NAME_DO_NOT_QUEUE))
|
||||
param |= SD_BUS_NAME_QUEUE;
|
||||
|
||||
r = set_put_strdup(owned_names, name);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_request_name(a, name, param);
|
||||
if (r < 0) {
|
||||
if (r == -EALREADY)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_ALREADY_OWNER);
|
||||
|
||||
set_remove(owned_names, (char*) name);
|
||||
|
||||
if (r == -EEXIST)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_EXISTS);
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
in_queue = (r == 0);
|
||||
|
||||
if (in_queue)
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_IN_QUEUE);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_NAME_PRIMARY_OWNER);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "StartServiceByName")) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
|
||||
const char *name;
|
||||
uint32_t flags;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "su"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_read(m, "su", &name, &flags);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (flags != 0)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
r = sd_bus_get_name_creds(a, name, 0, NULL);
|
||||
if (r >= 0 || streq(name, "org.freedesktop.DBus"))
|
||||
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_ALREADY_RUNNING);
|
||||
if (r != -ESRCH)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_new_method_call(
|
||||
a,
|
||||
&msg,
|
||||
name,
|
||||
"/",
|
||||
"org.freedesktop.DBus.Peer",
|
||||
"Ping");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_send(a, msg, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
|
||||
|
||||
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "UpdateActivationEnvironment")) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
|
||||
_cleanup_strv_free_ char **args = NULL;
|
||||
|
||||
if (!sd_bus_message_has_signature(m, "a{ss}"))
|
||||
return synthetic_reply_method_error(m, &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_INVALID_ARGS, "Invalid parameters"));
|
||||
|
||||
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{ss}");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "ss")) > 0) {
|
||||
_cleanup_free_ char *s = NULL;
|
||||
const char *key;
|
||||
const char *value;
|
||||
|
||||
r = sd_bus_message_read(m, "ss", &key, &value);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
s = strjoin(key, "=", value, NULL);
|
||||
if (!s)
|
||||
return synthetic_reply_method_errno(m, -ENOMEM, NULL);
|
||||
|
||||
r = strv_extend(&args, s);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_exit_container(m);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
}
|
||||
|
||||
r = sd_bus_message_exit_container(m);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
if (!args)
|
||||
return synthetic_reply_method_errno(m, -EINVAL, NULL);
|
||||
|
||||
r = sd_bus_message_new_method_call(
|
||||
a,
|
||||
&msg,
|
||||
"org.freedesktop.systemd1",
|
||||
"/org/freedesktop/systemd1",
|
||||
"org.freedesktop.systemd1.Manager",
|
||||
"SetEnvironment");
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_message_append_strv(msg, args);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
r = sd_bus_call(a, msg, 0, NULL, NULL);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(m, r, NULL);
|
||||
|
||||
return synthetic_reply_method_return(m, NULL);
|
||||
|
||||
} else {
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
|
||||
r = sd_bus_error_setf(&error, SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method '%s'.", m->member);
|
||||
|
||||
return synthetic_reply_method_errno(m, r, &error);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,27 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
#pragma once
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2014 Lennart Poettering
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
***/
|
||||
|
||||
#include "sd-bus.h"
|
||||
#include "bus-xml-policy.h"
|
||||
|
||||
int bus_proxy_process_driver(sd_bus *a, sd_bus *b, sd_bus_message *m, Policy *policy, const struct ucred *ucred, Set *owned_names);
|
||||
@@ -0,0 +1,146 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2010 Lennart Poettering
|
||||
Copyright 2013 Daniel Mack
|
||||
Copyright 2014 Kay Sievers
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
***/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <stddef.h>
|
||||
|
||||
#include "log.h"
|
||||
#include "util.h"
|
||||
#include "sd-bus.h"
|
||||
#include "bus-internal.h"
|
||||
#include "bus-message.h"
|
||||
#include "bus-util.h"
|
||||
#include "strv.h"
|
||||
#include "def.h"
|
||||
#include "bus-control.h"
|
||||
#include "synthesize.h"
|
||||
|
||||
static int synthetic_driver_send(sd_bus *b, sd_bus_message *m) {
|
||||
int r;
|
||||
|
||||
assert(b);
|
||||
assert(m);
|
||||
|
||||
r = bus_message_append_sender(m, "org.freedesktop.DBus");
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = bus_seal_synthetic_message(b, m);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
return sd_bus_send(b, m, NULL);
|
||||
}
|
||||
|
||||
int synthetic_reply_method_error(sd_bus_message *call, const sd_bus_error *e) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
|
||||
int r;
|
||||
|
||||
assert(call);
|
||||
|
||||
if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
|
||||
return 0;
|
||||
|
||||
r = sd_bus_message_new_method_error(call, &m, e);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
return synthetic_driver_send(call->bus, m);
|
||||
}
|
||||
|
||||
int synthetic_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) {
|
||||
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, format);
|
||||
bus_error_setfv(&error, name, format, ap);
|
||||
va_end(ap);
|
||||
|
||||
return synthetic_reply_method_error(call, &error);
|
||||
}
|
||||
|
||||
int synthetic_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *p) {
|
||||
|
||||
_cleanup_bus_error_free_ sd_bus_error berror = SD_BUS_ERROR_NULL;
|
||||
|
||||
assert(call);
|
||||
|
||||
if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
|
||||
return 0;
|
||||
|
||||
if (sd_bus_error_is_set(p))
|
||||
return synthetic_reply_method_error(call, p);
|
||||
|
||||
sd_bus_error_set_errno(&berror, error);
|
||||
|
||||
return synthetic_reply_method_error(call, &berror);
|
||||
}
|
||||
|
||||
int synthetic_reply_method_return(sd_bus_message *call, const char *types, ...) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
|
||||
int r;
|
||||
|
||||
assert(call);
|
||||
|
||||
if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
|
||||
return 0;
|
||||
|
||||
r = sd_bus_message_new_method_return(call, &m);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
if (!isempty(types)) {
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, types);
|
||||
r = bus_message_append_ap(m, types, ap);
|
||||
va_end(ap);
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
return synthetic_driver_send(call->bus, m);
|
||||
}
|
||||
|
||||
int synthetic_reply_return_strv(sd_bus_message *call, char **l) {
|
||||
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
|
||||
int r;
|
||||
|
||||
assert(call);
|
||||
|
||||
if (call->header->flags & BUS_MESSAGE_NO_REPLY_EXPECTED)
|
||||
return 0;
|
||||
|
||||
r = sd_bus_message_new_method_return(call, &m);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(call, r, NULL);
|
||||
|
||||
r = sd_bus_message_append_strv(m, l);
|
||||
if (r < 0)
|
||||
return synthetic_reply_method_errno(call, r, NULL);
|
||||
|
||||
return synthetic_driver_send(call->bus, m);
|
||||
}
|
||||
@@ -0,0 +1,30 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
#pragma once
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2014 Lennart Poettering
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
***/
|
||||
|
||||
#include "sd-bus.h"
|
||||
|
||||
int synthetic_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...);
|
||||
int synthetic_reply_method_return(sd_bus_message *call, const char *types, ...);
|
||||
int synthetic_reply_return_strv(sd_bus_message *call, char **l);
|
||||
int synthetic_reply_method_error(sd_bus_message *call, const sd_bus_error *e);
|
||||
int synthetic_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *p);
|
||||
Reference in New Issue
Block a user