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-rw-r--r--src/libsystemd-bus/bus-kernel.c6
-rw-r--r--src/libsystemd-bus/bus-message.c86
-rw-r--r--src/libsystemd-bus/bus-message.h2
-rw-r--r--src/libsystemd-bus/test-bus-chat.c7
4 files changed, 76 insertions, 25 deletions
diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c
index f36f60e496..3a9b8af844 100644
--- a/src/libsystemd-bus/bus-kernel.c
+++ b/src/libsystemd-bus/bus-kernel.c
@@ -447,7 +447,9 @@ static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k, sd_bus_mess
else if (d->type == KDBUS_MSG_SRC_CMDLINE) {
m->cmdline = d->str;
m->cmdline_length = l;
- } else
+ } else if (d->type == KDBUS_MSG_SRC_CGROUP)
+ m->cgroup = d->str;
+ else
log_debug("Got unknown field from kernel %llu", d->type);
}
@@ -553,7 +555,7 @@ int bus_kernel_create(const char *name, char **s) {
make->flags = KDBUS_ACCESS_WORLD | KDBUS_POLICY_OPEN;
make->bus_flags = 0;
make->bloom_size = BLOOM_SIZE;
-
+ make->cgroup_id = 1;
assert_cc(BLOOM_SIZE % 8 == 0);
p = strjoin("/dev/kdbus/", make->name, "/bus", NULL);
diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index 103e2c1f65..b78d34bf7a 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -657,8 +657,10 @@ const sd_bus_error *sd_bus_message_get_error(sd_bus_message *m) {
int sd_bus_message_get_uid(sd_bus_message *m, uid_t *uid) {
if (!m)
return -EINVAL;
+ if (!uid)
+ return -EINVAL;
if (!m->uid_valid)
- return -ENOENT;
+ return -ESRCH;
*uid = m->uid;
return 0;
@@ -667,8 +669,10 @@ int sd_bus_message_get_uid(sd_bus_message *m, uid_t *uid) {
int sd_bus_message_get_gid(sd_bus_message *m, gid_t *gid) {
if (!m)
return -EINVAL;
+ if (!gid)
+ return -EINVAL;
if (!m->gid_valid)
- return -ENOENT;
+ return -ESRCH;
*gid = m->gid;
return 0;
@@ -677,8 +681,10 @@ int sd_bus_message_get_gid(sd_bus_message *m, gid_t *gid) {
int sd_bus_message_get_pid(sd_bus_message *m, pid_t *pid) {
if (!m)
return -EINVAL;
+ if (!pid)
+ return -EINVAL;
if (m->pid <= 0)
- return -ENOENT;
+ return -ESRCH;
*pid = m->pid;
return 0;
@@ -687,8 +693,10 @@ int sd_bus_message_get_pid(sd_bus_message *m, pid_t *pid) {
int sd_bus_message_get_tid(sd_bus_message *m, pid_t *tid) {
if (!m)
return -EINVAL;
+ if (!tid)
+ return -EINVAL;
if (m->tid <= 0)
- return -ENOENT;
+ return -ESRCH;
*tid = m->tid;
return 0;
@@ -697,26 +705,32 @@ int sd_bus_message_get_tid(sd_bus_message *m, pid_t *tid) {
int sd_bus_message_get_pid_starttime(sd_bus_message *m, uint64_t *usec) {
if (!m)
return -EINVAL;
+ if (!usec)
+ return -EINVAL;
if (m->pid_starttime <= 0)
- return -ENOENT;
+ return -ESRCH;
*usec = m->pid_starttime;
return 0;
}
-const char *sd_bus_message_get_selinux_context(sd_bus_message *m) {
+int sd_bus_message_get_selinux_context(sd_bus_message *m, const char **ret) {
if (!m)
- return NULL;
+ return -EINVAL;
+ if (!m->label)
+ return -ESRCH;
- return m->label;
+ *ret = m->label;
+ return 0;
}
int sd_bus_message_get_monotonic_timestamp(sd_bus_message *m, uint64_t *usec) {
if (!m)
return -EINVAL;
-
+ if (!usec)
+ return -EINVAL;
if (m->monotonic <= 0)
- return -ENOENT;
+ return -ESRCH;
*usec = m->monotonic;
return 0;
@@ -725,33 +739,61 @@ int sd_bus_message_get_monotonic_timestamp(sd_bus_message *m, uint64_t *usec) {
int sd_bus_message_get_realtime_timestamp(sd_bus_message *m, uint64_t *usec) {
if (!m)
return -EINVAL;
-
+ if (!usec)
+ return -EINVAL;
if (m->realtime <= 0)
- return -ENOENT;
+ return -ESRCH;
*usec = m->realtime;
return 0;
}
-const char *sd_bus_message_get_comm(sd_bus_message *m) {
+int sd_bus_message_get_comm(sd_bus_message *m, const char **ret) {
if (!m)
- return NULL;
+ return -EINVAL;
+ if (!ret)
+ return -EINVAL;
+ if (!m->comm)
+ return -ESRCH;
- return m->comm;
+ *ret = m->comm;
+ return 0;
}
-const char *sd_bus_message_get_tid_comm(sd_bus_message *m) {
+int sd_bus_message_get_tid_comm(sd_bus_message *m, const char **ret) {
if (!m)
- return NULL;
+ return -EINVAL;
+ if (!ret)
+ return -EINVAL;
+ if (!m->tid_comm)
+ return -ESRCH;
- return m->tid_comm;
+ *ret = m->tid_comm;
+ return 0;
}
-const char *sd_bus_message_get_exe(sd_bus_message *m) {
+int sd_bus_message_get_exe(sd_bus_message *m, const char **ret) {
if (!m)
- return NULL;
+ return -EINVAL;
+ if (!ret)
+ return -EINVAL;
+ if (!m->exe)
+ return -ESRCH;
- return m->exe;
+ *ret = m->exe;
+ return 0;
+}
+
+int sd_bus_message_get_cgroup(sd_bus_message *m, const char **ret) {
+ if (!m)
+ return -EINVAL;
+ if (!ret)
+ return -EINVAL;
+ if (!m->cgroup)
+ return -ESRCH;
+
+ *ret = m->cgroup;
+ return 0;
}
int sd_bus_message_get_cmdline(sd_bus_message *m, char ***cmdline) {
@@ -3029,6 +3071,8 @@ int bus_message_dump(sd_bus_message *m) {
printf("\ttid_comm=[%s]\n", m->tid_comm);
if (m->label)
printf("\tlabel=[%s]\n", m->label);
+ if (m->cgroup)
+ printf("\tcgroup=[%s]\n", m->cgroup);
if (sd_bus_message_get_cmdline(m, &cmdline) >= 0) {
char **c;
diff --git a/src/libsystemd-bus/bus-message.h b/src/libsystemd-bus/bus-message.h
index 60fc3fcda3..2cd1ef257d 100644
--- a/src/libsystemd-bus/bus-message.h
+++ b/src/libsystemd-bus/bus-message.h
@@ -110,10 +110,10 @@ struct sd_bus_message {
const char *exe;
const char *comm;
const char *tid_comm;
+ const char *cgroup;
const char *cmdline;
size_t cmdline_length;
-
char **cmdline_array;
};
diff --git a/src/libsystemd-bus/test-bus-chat.c b/src/libsystemd-bus/test-bus-chat.c
index 5f9a7ba8b3..f457c8f88a 100644
--- a/src/libsystemd-bus/test-bus-chat.c
+++ b/src/libsystemd-bus/test-bus-chat.c
@@ -136,6 +136,7 @@ static int server(sd_bus *bus) {
while (!client1_gone || !client2_gone) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
pid_t pid = 0;
+ const char *label = NULL;
r = sd_bus_process(bus, &m);
if (r < 0) {
@@ -157,7 +158,11 @@ static int server(sd_bus *bus) {
continue;
sd_bus_message_get_pid(m, &pid);
- log_info("Got message! member=%s pid=%lu label=%s", strna(sd_bus_message_get_member(m)), (unsigned long) pid, strna(sd_bus_message_get_selinux_context(m)));
+ sd_bus_message_get_selinux_context(m, &label);
+ log_info("Got message! member=%s pid=%lu label=%s",
+ strna(sd_bus_message_get_member(m)),
+ (unsigned long) pid,
+ strna(label));
/* bus_message_dump(m); */
/* sd_bus_message_rewind(m, true); */
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-15 02:10:31 +0000