-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdlib.h>
#include <linux/capability.h>
+#include <stdlib.h>
-#include "util.h"
-#include "formats-util.h"
-#include "process-util.h"
-#include "terminal-util.h"
-#include "capability.h"
-#include "cgroup-util.h"
-#include "fileio.h"
-#include "audit.h"
+#include "alloc-util.h"
+#include "audit-util.h"
+#include "bus-creds.h"
+#include "bus-label.h"
#include "bus-message.h"
#include "bus-util.h"
+#include "capability-util.h"
+#include "cgroup-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "format-util.h"
+#include "hexdecoct.h"
+#include "parse-util.h"
+#include "process-util.h"
+#include "string-util.h"
#include "strv.h"
-#include "bus-creds.h"
-#include "bus-label.h"
+#include "terminal-util.h"
+#include "user-util.h"
+#include "util.h"
enum {
CAP_OFFSET_INHERITABLE = 0,
free(c->unit);
free(c->user_unit);
free(c->slice);
+ free(c->user_slice);
free(c->unescaped_description);
free(c->supplementary_gids);
free(c->tty);
}
_public_ sd_bus_creds *sd_bus_creds_ref(sd_bus_creds *c) {
- assert_return(c, NULL);
+
+ if (!c)
+ return NULL;
if (c->allocated) {
assert(c->n_ref > 0);
free(c->cgroup_root);
free(c->description);
- free(c->supplementary_gids);
- c->supplementary_gids = NULL;
+ c->supplementary_gids = mfree(c->supplementary_gids);
- strv_free(c->well_known_names);
- c->well_known_names = NULL;
+ c->well_known_names = strv_free(c->well_known_names);
bus_creds_done(c);
assert_return(ret, -EINVAL);
if (pid == 0)
- pid = getpid();
+ pid = getpid_cached();
c = bus_creds_new();
if (!c)
if (!(c->mask & SD_BUS_CREDS_PPID))
return -ENODATA;
- /* PID 1 has no parent process. Let's distuingish the case of
+ /* PID 1 has no parent process. Let's distinguish the case of
* not knowing and not having a parent process by the returned
* error code. */
if (c->ppid == 0)
return 0;
}
+_public_ int sd_bus_creds_get_user_slice(sd_bus_creds *c, const char **ret) {
+ int r;
+
+ assert_return(c, -EINVAL);
+ assert_return(ret, -EINVAL);
+
+ if (!(c->mask & SD_BUS_CREDS_USER_SLICE))
+ return -ENODATA;
+
+ assert(c->cgroup);
+
+ if (!c->user_slice) {
+ const char *shifted;
+
+ r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted);
+ if (r < 0)
+ return r;
+
+ r = cg_path_get_user_slice(shifted, (char**) &c->user_slice);
+ if (r < 0)
+ return r;
+ }
+
+ *ret = c->user_slice;
+ return 0;
+}
+
_public_ int sd_bus_creds_get_session(sd_bus_creds *c, const char **ret) {
int r;
if (!(c->mask & SD_BUS_CREDS_AUDIT_SESSION_ID))
return -ENODATA;
- if (c->audit_session_id == AUDIT_SESSION_INVALID)
+ if (!audit_session_is_valid(c->audit_session_id))
return -ENXIO;
*sessionid = c->audit_session_id;
if (!(c->mask & SD_BUS_CREDS_AUDIT_LOGIN_UID))
return -ENODATA;
- if (c->audit_login_uid == UID_INVALID)
+ if (!uid_is_valid(c->audit_login_uid))
return -ENXIO;
*uid = c->audit_login_uid;
return 0;
/* Try to retrieve PID from creds if it wasn't passed to us */
- if (pid <= 0 && (c->mask & SD_BUS_CREDS_PID))
+ if (pid > 0) {
+ c->pid = pid;
+ c->mask |= SD_BUS_CREDS_PID;
+ } else if (c->mask & SD_BUS_CREDS_PID)
pid = c->pid;
-
- /* Without pid we cannot do much... */
- if (pid <= 0)
+ else
+ /* Without pid we cannot do much... */
return 0;
/* Try to retrieve TID from creds if it wasn't passed to us */
if (missing == 0)
return 0;
- c->pid = pid;
- c->mask |= SD_BUS_CREDS_PID;
-
if (tid > 0) {
c->tid = tid;
c->mask |= SD_BUS_CREDS_TID;
if (!f) {
if (errno == ENOENT)
return -ESRCH;
- else if (errno != EPERM && errno != EACCES)
+ else if (!IN_SET(errno, EPERM, EACCES))
return -errno;
} else {
char line[LINE_MAX];
p = procfs_file_alloca(pid, "attr/current");
r = read_one_line_file(p, &c->label);
if (r < 0) {
- if (r != -ENOENT && r != -EINVAL && r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -ENOENT, -EINVAL, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
if (missing & SD_BUS_CREDS_COMM) {
r = get_process_comm(pid, &c->comm);
if (r < 0) {
- if (r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_COMM;
if (missing & SD_BUS_CREDS_EXE) {
r = get_process_exe(pid, &c->exe);
if (r == -ESRCH) {
- /* Unfortunately we cannot really distuingish
+ /* Unfortunately we cannot really distinguish
* the case here where the process does not
* exist, and /proc/$PID/exe being unreadable
* because $PID is a kernel thread. Hence,
c->exe = NULL;
c->mask |= SD_BUS_CREDS_EXE;
} else if (r < 0) {
- if (r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_EXE;
if (r == -ENOENT)
return -ESRCH;
if (r < 0) {
- if (r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EPERM, -EACCES))
return r;
} else {
- if (c->cmdline_size == 0) {
- free(c->cmdline);
- c->cmdline = NULL;
- }
+ if (c->cmdline_size == 0)
+ c->cmdline = mfree(c->cmdline);
c->mask |= SD_BUS_CREDS_CMDLINE;
}
if (r == -ENOENT)
return -ESRCH;
if (r < 0) {
- if (r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_TID_COMM;
}
- if (missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID)) {
+ if (missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_USER_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID)) {
if (!c->cgroup) {
r = cg_pid_get_path(NULL, pid, &c->cgroup);
if (r < 0) {
- if (r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EPERM, -EACCES))
return r;
}
}
}
if (c->cgroup)
- c->mask |= missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID);
+ c->mask |= missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_USER_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID);
}
if (missing & SD_BUS_CREDS_AUDIT_SESSION_ID) {
r = audit_session_from_pid(pid, &c->audit_session_id);
- if (r == -ENXIO) {
- /* ENXIO means: no audit session id assigned */
+ if (r == -ENODATA) {
+ /* ENODATA means: no audit session id assigned */
c->audit_session_id = AUDIT_SESSION_INVALID;
c->mask |= SD_BUS_CREDS_AUDIT_SESSION_ID;
} else if (r < 0) {
- if (r != -EOPNOTSUPP && r != -ENOENT && r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EOPNOTSUPP, -ENOENT, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_AUDIT_SESSION_ID;
if (missing & SD_BUS_CREDS_AUDIT_LOGIN_UID) {
r = audit_loginuid_from_pid(pid, &c->audit_login_uid);
- if (r == -ENXIO) {
- /* ENXIO means: no audit login uid assigned */
+ if (r == -ENODATA) {
+ /* ENODATA means: no audit login uid assigned */
c->audit_login_uid = UID_INVALID;
c->mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID;
} else if (r < 0) {
- if (r != -EOPNOTSUPP && r != -ENOENT && r != -EPERM && r != -EACCES)
+ if (!IN_SET(r, -EOPNOTSUPP, -ENOENT, -EPERM, -EACCES))
return r;
} else
c->mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID;
c->tty = NULL;
c->mask |= SD_BUS_CREDS_TTY;
} else if (r < 0) {
- if (r != -EPERM && r != -EACCES && r != -ENOENT)
+ if (!IN_SET(r, -EPERM, -EACCES, -ENOENT))
return r;
} else
c->mask |= SD_BUS_CREDS_TTY;
}
/* In case only the exe path was to be read we cannot
- * distuingish the case where the exe path was unreadable
+ * distinguish the case where the exe path was unreadable
* because the process was a kernel thread, or when the
* process didn't exist at all. Hence, let's do a final check,
* to be sure. */
}
int bus_creds_extend_by_pid(sd_bus_creds *c, uint64_t mask, sd_bus_creds **ret) {
- _cleanup_bus_creds_unref_ sd_bus_creds *n = NULL;
+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *n = NULL;
int r;
assert(c);
n->mask |= SD_BUS_CREDS_CMDLINE;
}
- if (c->mask & mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_OWNER_UID)) {
+ if (c->mask & mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_USER_SLICE|SD_BUS_CREDS_OWNER_UID)) {
assert(c->cgroup);
n->cgroup = strdup(c->cgroup);
if (!n->cgroup_root)
return -ENOMEM;
- n->mask |= mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_OWNER_UID);
+ n->mask |= mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_USER_SLICE|SD_BUS_CREDS_OWNER_UID);
}
if (c->mask & mask & (SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS)) {
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