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-rw-r--r--src/libsystemd/sd-bus/bus-control.c11
-rw-r--r--src/libsystemd/sd-bus/bus-creds.c33
-rw-r--r--src/libsystemd/sd-bus/bus-creds.h1
-rw-r--r--src/libsystemd/sd-bus/bus-dump.c4
-rw-r--r--src/libsystemd/sd-bus/bus-kernel.c7
5 files changed, 51 insertions, 5 deletions
diff --git a/src/libsystemd/sd-bus/bus-control.c b/src/libsystemd/sd-bus/bus-control.c
index 25510f00c7..1084ddc9ca 100644
--- a/src/libsystemd/sd-bus/bus-control.c
+++ b/src/libsystemd/sd-bus/bus-control.c
@@ -413,6 +413,11 @@ static int bus_populate_creds_from_items(
c->mask |= SD_BUS_CREDS_TID;
}
+ if (mask & SD_BUS_CREDS_PPID && item->pids.ppid > 0) {
+ c->ppid = (pid_t) item->pids.ppid;
+ c->mask |= SD_BUS_CREDS_PPID;
+ }
+
break;
case KDBUS_ITEM_CREDS:
@@ -644,7 +649,8 @@ int bus_get_name_creds_kdbus(
* the bits we want, then ask for the PID/TID so that we
* can read the rest from /proc. */
if ((mask & SD_BUS_CREDS_AUGMENT) &&
- (mask & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID|
+ (mask & (SD_BUS_CREDS_PPID|
+ SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID|
SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID|
SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE|
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|
@@ -910,7 +916,8 @@ static int bus_get_owner_creds_kdbus(sd_bus *bus, uint64_t mask, sd_bus_creds **
* to get the bits we want, then ask for the PID/TID so that we
* can read the rest from /proc. */
if ((mask & SD_BUS_CREDS_AUGMENT) &&
- (mask & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID|
+ (mask & (SD_BUS_CREDS_PPID|
+ SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID|
SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID|
SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE|
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|
diff --git a/src/libsystemd/sd-bus/bus-creds.c b/src/libsystemd/sd-bus/bus-creds.c
index b00b5308a8..6cb47f55ce 100644
--- a/src/libsystemd/sd-bus/bus-creds.c
+++ b/src/libsystemd/sd-bus/bus-creds.c
@@ -293,6 +293,17 @@ _public_ int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid) {
return 0;
}
+_public_ int sd_bus_creds_get_ppid(sd_bus_creds *c, pid_t *ppid) {
+ assert_return(c, -EINVAL);
+ assert_return(ppid, -EINVAL);
+
+ if (!(c->mask & SD_BUS_CREDS_PPID))
+ return -ENODATA;
+
+ *ppid = c->ppid;
+ return 0;
+}
+
_public_ int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid) {
assert_return(c, -EINVAL);
assert_return(tid, -EINVAL);
@@ -728,7 +739,8 @@ int bus_creds_add_more(sd_bus_creds *c, uint64_t mask, pid_t pid, pid_t tid) {
c->mask |= SD_BUS_CREDS_TID;
}
- if (missing & (SD_BUS_CREDS_UID | SD_BUS_CREDS_EUID | SD_BUS_CREDS_SUID | SD_BUS_CREDS_FSUID |
+ if (missing & (SD_BUS_CREDS_PPID |
+ SD_BUS_CREDS_UID | SD_BUS_CREDS_EUID | SD_BUS_CREDS_SUID | SD_BUS_CREDS_FSUID |
SD_BUS_CREDS_GID | SD_BUS_CREDS_EGID | SD_BUS_CREDS_SGID | SD_BUS_CREDS_FSGID |
SD_BUS_CREDS_SUPPLEMENTARY_GIDS |
SD_BUS_CREDS_EFFECTIVE_CAPS | SD_BUS_CREDS_INHERITABLE_CAPS |
@@ -751,6 +763,20 @@ int bus_creds_add_more(sd_bus_creds *c, uint64_t mask, pid_t pid, pid_t tid) {
FOREACH_LINE(line, f, return -errno) {
truncate_nl(line);
+ if (missing & SD_BUS_CREDS_PPID) {
+ p = startswith(line, "PPid:");
+ if (p) {
+ p += strspn(p, WHITESPACE);
+
+ r = parse_pid(p, &c->ppid);
+ if (r < 0)
+ return r;
+
+ c->mask |= SD_BUS_CREDS_PPID;
+ continue;
+ }
+ }
+
if (missing & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID)) {
p = startswith(line, "Uid:");
if (p) {
@@ -1015,6 +1041,11 @@ int bus_creds_extend_by_pid(sd_bus_creds *c, uint64_t mask, sd_bus_creds **ret)
n->mask |= SD_BUS_CREDS_TID;
}
+ if (c->mask & mask & SD_BUS_CREDS_PPID) {
+ n->ppid = c->ppid;
+ n->mask |= SD_BUS_CREDS_PPID;
+ }
+
if (c->mask & mask & SD_BUS_CREDS_UID) {
n->uid = c->uid;
n->mask |= SD_BUS_CREDS_UID;
diff --git a/src/libsystemd/sd-bus/bus-creds.h b/src/libsystemd/sd-bus/bus-creds.h
index 74062a583d..720450625c 100644
--- a/src/libsystemd/sd-bus/bus-creds.h
+++ b/src/libsystemd/sd-bus/bus-creds.h
@@ -44,6 +44,7 @@ struct sd_bus_creds {
gid_t *supplementary_gids;
unsigned n_supplementary_gids;
+ pid_t ppid;
pid_t pid;
pid_t tid;
diff --git a/src/libsystemd/sd-bus/bus-dump.c b/src/libsystemd/sd-bus/bus-dump.c
index 9165dd7d5a..13ff8b956a 100644
--- a/src/libsystemd/sd-bus/bus-dump.c
+++ b/src/libsystemd/sd-bus/bus-dump.c
@@ -362,8 +362,10 @@ int bus_creds_dump(sd_bus_creds *c, FILE *f, bool terse) {
fprintf(f, "%sPID=%s"PID_FMT"%s", prefix, color, c->pid, suffix);
if (c->mask & SD_BUS_CREDS_TID)
fprintf(f, "%sTID=%s"PID_FMT"%s", prefix, color, c->tid, suffix);
+ if (c->mask & SD_BUS_CREDS_PPID)
+ fprintf(f, "%sPPID=%s"PID_FMT"%s", prefix, color, c->ppid, suffix);
- if (terse && ((c->mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID))))
+ if (terse && ((c->mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID|SD_BUS_CREDS_PPID))))
fputs("\n", f);
if (c->mask & SD_BUS_CREDS_UID)
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
index 0062e66d39..a8c04b98a9 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/sd-bus/bus-kernel.c
@@ -595,6 +595,11 @@ static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k) {
m->creds.mask |= SD_BUS_CREDS_TID & bus->creds_mask;
}
+ if (d->pids.ppid > 0) {
+ m->creds.ppid = (pid_t) d->pids.ppid;
+ m->creds.mask |= SD_BUS_CREDS_PPID & bus->creds_mask;
+ }
+
break;
case KDBUS_ITEM_CREDS:
@@ -1506,7 +1511,7 @@ uint64_t attach_flags_to_kdbus(uint64_t mask) {
SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID))
m |= KDBUS_ATTACH_CREDS;
- if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID))
+ if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID|SD_BUS_CREDS_PPID))
m |= KDBUS_ATTACH_PIDS;
if (mask & SD_BUS_CREDS_COMM)
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-06 19:13:46 +0000