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Diffstat (limited to 'src/bus-proxyd/driver.c')
-rw-r--r--src/bus-proxyd/driver.c113
1 files changed, 84 insertions, 29 deletions
diff --git a/src/bus-proxyd/driver.c b/src/bus-proxyd/driver.c
index 1cb5ea5008..fa4aee691a 100644
--- a/src/bus-proxyd/driver.c
+++ b/src/bus-proxyd/driver.c
@@ -35,6 +35,7 @@
#include "driver.h"
#include "proxy.h"
#include "synthesize.h"
+#include "env-util.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;
@@ -71,6 +72,27 @@ static int get_creds_by_message(sd_bus *bus, sd_bus_message *m, uint64_t mask, s
return get_creds_by_name(bus, name, mask, _creds, error);
}
+static int driver_activation(sd_bus_message *reply, void *userdata, sd_bus_error *error) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ ProxyActivation *activation = userdata;
+
+ /*
+ * The org.freedesktop.DBus.Peer.Ping() call returned. We don't care
+ * whether this succeeded, failed, was not implemented or timed out. We
+ * cannot assume that the target reacts to this properly. Hence, just
+ * send the reply to the activation request and be done.
+ */
+
+ m = activation->request; /* claim reference */
+
+ --activation->proxy->n_activations;
+ LIST_REMOVE(activations_by_proxy, activation->proxy->activations, activation);
+ sd_bus_slot_unref(activation->slot);
+ free(activation);
+
+ return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
+}
+
int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m, SharedPolicy *sp, const struct ucred *ucred, Set *owned_names) {
int r;
@@ -441,27 +463,29 @@ int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m,
name_list = (struct kdbus_info *) ((uint8_t *) a->kdbus_buffer + cmd.offset);
KDBUS_FOREACH(name, name_list, cmd.list_size) {
- 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->id) < 0) {
- err = -ENOMEM;
- break;
+ KDBUS_ITEM_FOREACH(item, name, items) {
+ if (item->type == KDBUS_ITEM_OWNED_NAME) {
+ if (!streq_ptr(item->name.name, arg0))
+ continue;
+
+ if (asprintf(&n, ":1.%llu", (unsigned long long) name->id) < 0) {
+ err = -ENOMEM;
+ break;
+ }
+
+ r = strv_consume(&owners, n);
+ if (r < 0) {
+ err = r;
+ break;
+ }
+ }
}
- r = strv_consume(&owners, n);
- if (r < 0) {
- err = r;
+ if (err < 0)
break;
- }
}
r = bus_kernel_cmd_free(a, cmd.offset);
@@ -585,7 +609,9 @@ int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m,
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "StartServiceByName")) {
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
+ ProxyActivation *activation;
const char *name;
+ uint64_t cookie;
uint32_t flags;
if (!sd_bus_message_has_signature(m, "su"))
@@ -604,21 +630,46 @@ int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m,
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 (p->n_activations >= PROXY_ACTIVATIONS_MAX)
+ return synthetic_reply_method_errno(m, -EMFILE, NULL);
+
+ r = sd_bus_message_get_cookie(m, &cookie);
+ if (r < 0)
+ 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);
+ r = bus_message_seal(msg, cookie, BUS_DEFAULT_TIMEOUT);
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
- return synthetic_reply_method_return(m, "u", BUS_START_REPLY_SUCCESS);
+ activation = new0(ProxyActivation, 1);
+ if (!activation)
+ return synthetic_reply_method_errno(m, -ENOMEM, NULL);
+
+ r = sd_bus_call_async(a,
+ &activation->slot,
+ msg,
+ driver_activation,
+ activation,
+ 0);
+ if (r < 0) {
+ free(activation);
+ return synthetic_reply_method_errno(m, r, NULL);
+ }
+
+ activation->proxy = p;
+ activation->request = sd_bus_message_ref(m);
+ LIST_PREPEND(activations_by_proxy, p->activations, activation);
+ ++p->n_activations;
+ return 1;
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.DBus", "UpdateActivationEnvironment")) {
_cleanup_bus_message_unref_ sd_bus_message *msg = NULL;
@@ -644,9 +695,13 @@ int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m,
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);
+ if (!env_assignment_is_valid(s)) {
+ log_warning("UpdateActivationEnvironment() called with invalid assignment, discarding: %s", s);
+ } else {
+ 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)
@@ -657,8 +712,8 @@ int bus_proxy_process_driver(Proxy *p, sd_bus *a, sd_bus *b, sd_bus_message *m,
if (r < 0)
return synthetic_reply_method_errno(m, r, NULL);
- if (!args)
- return synthetic_reply_method_errno(m, -EINVAL, NULL);
+ if (strv_isempty(args)) /* nothing to do? */
+ return synthetic_reply_method_return(m, NULL);
r = sd_bus_message_new_method_call(
a,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-08-12 13:51:15 +0000