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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
commitfc53809803cd2bc2434e312b19a18fa36776da12 (patch)
treeb4b43bd6538f51965ce32856e9c053d0f90919c8 /src/libsystemd/sd-id128/sd-id128.c
parentAdding upstream version 255.5. (diff)
downloadsystemd-fc53809803cd2bc2434e312b19a18fa36776da12.tar.xz
systemd-fc53809803cd2bc2434e312b19a18fa36776da12.zip
Adding upstream version 256.upstream/256
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libsystemd/sd-id128/sd-id128.c')
-rw-r--r--src/libsystemd/sd-id128/sd-id128.c52
1 files changed, 30 insertions, 22 deletions
diff --git a/src/libsystemd/sd-id128/sd-id128.c b/src/libsystemd/sd-id128/sd-id128.c
index 9fda79a..fc1107b 100644
--- a/src/libsystemd/sd-id128/sd-id128.c
+++ b/src/libsystemd/sd-id128/sd-id128.c
@@ -13,6 +13,7 @@
#include "hmac.h"
#include "id128-util.h"
#include "io-util.h"
+#include "keyring-util.h"
#include "macro.h"
#include "missing_syscall.h"
#include "missing_threads.h"
@@ -170,14 +171,24 @@ int id128_get_machine(const char *root, sd_id128_t *ret) {
return id128_read_fd(fd, ID128_FORMAT_PLAIN | ID128_REFUSE_NULL, ret);
}
+int id128_get_boot(sd_id128_t *ret) {
+ int r;
+
+ assert(ret);
+
+ r = id128_read("/proc/sys/kernel/random/boot_id", ID128_FORMAT_UUID | ID128_REFUSE_NULL, ret);
+ if (r == -ENOENT && proc_mounted() == 0)
+ return -ENOSYS;
+
+ return r;
+}
+
_public_ int sd_id128_get_boot(sd_id128_t *ret) {
static thread_local sd_id128_t saved_boot_id = {};
int r;
if (sd_id128_is_null(saved_boot_id)) {
- r = id128_read("/proc/sys/kernel/random/boot_id", ID128_FORMAT_UUID | ID128_REFUSE_NULL, &saved_boot_id);
- if (r == -ENOENT && proc_mounted() == 0)
- return -ENOSYS;
+ r = id128_get_boot(&saved_boot_id);
if (r < 0)
return r;
}
@@ -192,7 +203,6 @@ static int get_invocation_from_keyring(sd_id128_t *ret) {
char *d, *p, *g, *u, *e;
unsigned long perms;
key_serial_t key;
- size_t sz = 256;
uid_t uid;
gid_t gid;
int r, c;
@@ -211,24 +221,9 @@ static int get_invocation_from_keyring(sd_id128_t *ret) {
return -errno;
}
- for (;;) {
- description = new(char, sz);
- if (!description)
- return -ENOMEM;
-
- c = keyctl(KEYCTL_DESCRIBE, key, (unsigned long) description, sz, 0);
- if (c < 0)
- return -errno;
-
- if ((size_t) c <= sz)
- break;
-
- sz = c;
- free(description);
- }
-
- /* The kernel returns a final NUL in the string, verify that. */
- assert(description[c-1] == 0);
+ r = keyring_describe(key, &description);
+ if (r < 0)
+ return r;
/* Chop off the final description string */
d = strrchr(description, ';');
@@ -380,3 +375,16 @@ _public_ int sd_id128_get_boot_app_specific(sd_id128_t app_id, sd_id128_t *ret)
return sd_id128_get_app_specific(id, app_id, ret);
}
+
+_public_ int sd_id128_get_invocation_app_specific(sd_id128_t app_id, sd_id128_t *ret) {
+ sd_id128_t id;
+ int r;
+
+ assert_return(ret, -EINVAL);
+
+ r = sd_id128_get_invocation(&id);
+ if (r < 0)
+ return r;
+
+ return sd_id128_get_app_specific(id, app_id, ret);
+}