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-rw-r--r--src/core/automount.c25
-rw-r--r--src/core/path.c16
-rw-r--r--src/core/timer.c30
-rw-r--r--src/delta/delta.c43
-rw-r--r--src/nss-mymachines/nss-mymachines.c20
5 files changed, 101 insertions, 33 deletions
diff --git a/src/core/automount.c b/src/core/automount.c
index 772ec222ca..5dc6fd98e7 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -726,7 +726,15 @@ static void automount_enter_runnning(Automount *a) {
if (!S_ISDIR(st.st_mode) || st.st_dev != a->dev_id)
log_unit_info(UNIT(a), "Automount point already active?");
else {
- r = manager_add_job(UNIT(a)->manager, JOB_START, UNIT_TRIGGER(UNIT(a)), JOB_REPLACE, &error, NULL);
+ Unit *trigger;
+
+ trigger = UNIT_TRIGGER(UNIT(a));
+ if (!trigger) {
+ log_unit_error(UNIT(a), "Unit to trigger vanished.");
+ goto fail;
+ }
+
+ r = manager_add_job(UNIT(a)->manager, JOB_START, trigger, JOB_REPLACE, &error, NULL);
if (r < 0) {
log_unit_warning(UNIT(a), "Failed to queue mount startup job: %s", bus_error_message(&error, r));
goto fail;
@@ -742,6 +750,7 @@ fail:
static int automount_start(Unit *u) {
Automount *a = AUTOMOUNT(u);
+ Unit *trigger;
assert(a);
assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED);
@@ -751,8 +760,11 @@ static int automount_start(Unit *u) {
return -EEXIST;
}
- if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED)
+ trigger = UNIT_TRIGGER(u);
+ if (!trigger || trigger->load_state != UNIT_LOADED) {
+ log_unit_error(u, "Refusing to start, unit to trigger not loaded.");
return -ENOENT;
+ }
a->result = AUTOMOUNT_SUCCESS;
automount_enter_waiting(a);
@@ -899,6 +911,7 @@ static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, vo
union autofs_v5_packet_union packet;
Automount *a = AUTOMOUNT(userdata);
struct stat st;
+ Unit *trigger;
int r;
assert(a);
@@ -971,7 +984,13 @@ static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, vo
break;
}
- r = manager_add_job(UNIT(a)->manager, JOB_STOP, UNIT_TRIGGER(UNIT(a)), JOB_REPLACE, &error, NULL);
+ trigger = UNIT_TRIGGER(UNIT(a));
+ if (!trigger) {
+ log_unit_error(UNIT(a), "Unit to trigger vanished.");
+ goto fail;
+ }
+
+ r = manager_add_job(UNIT(a)->manager, JOB_STOP, trigger, JOB_REPLACE, &error, NULL);
if (r < 0) {
log_unit_warning(UNIT(a), "Failed to queue umount startup job: %s", bus_error_message(&error, r));
goto fail;
diff --git a/src/core/path.c b/src/core/path.c
index 610901275c..6ac9b8b90d 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -464,6 +464,7 @@ static void path_enter_dead(Path *p, PathResult f) {
static void path_enter_running(Path *p) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ Unit *trigger;
int r;
assert(p);
@@ -472,7 +473,14 @@ static void path_enter_running(Path *p) {
if (unit_stop_pending(UNIT(p)))
return;
- r = manager_add_job(UNIT(p)->manager, JOB_START, UNIT_TRIGGER(UNIT(p)), JOB_REPLACE, &error, NULL);
+ trigger = UNIT_TRIGGER(UNIT(p));
+ if (!trigger) {
+ log_unit_error(UNIT(p), "Unit to trigger vanished.");
+ path_enter_dead(p, PATH_FAILURE_RESOURCES);
+ return;
+ }
+
+ r = manager_add_job(UNIT(p)->manager, JOB_START, trigger, JOB_REPLACE, &error, NULL);
if (r < 0)
goto fail;
@@ -553,12 +561,16 @@ static void path_mkdir(Path *p) {
static int path_start(Unit *u) {
Path *p = PATH(u);
+ Unit *trigger;
assert(p);
assert(p->state == PATH_DEAD || p->state == PATH_FAILED);
- if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED)
+ trigger = UNIT_TRIGGER(u);
+ if (!trigger || trigger->load_state != UNIT_LOADED) {
+ log_unit_error(u, "Refusing to start, unit to trigger not loaded.");
return -ENOENT;
+ }
path_mkdir(p);
diff --git a/src/core/timer.c b/src/core/timer.c
index 5dd7df14d1..6f3e6a8db3 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -357,8 +357,18 @@ static void timer_enter_waiting(Timer *t, bool initial) {
usec_t base = 0;
bool leave_around = false;
TimerValue *v;
+ Unit *trigger;
int r;
+ assert(t);
+
+ trigger = UNIT_TRIGGER(UNIT(t));
+ if (!trigger) {
+ log_unit_error(UNIT(t), "Unit to trigger vanished.");
+ timer_enter_dead(t, TIMER_FAILURE_RESOURCES);
+ return;
+ }
+
/* If we shall wake the system we use the boottime clock
* rather than the monotonic clock. */
@@ -417,7 +427,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
case TIMER_UNIT_ACTIVE:
leave_around = true;
- base = UNIT_TRIGGER(UNIT(t))->inactive_exit_timestamp.monotonic;
+ base = trigger->inactive_exit_timestamp.monotonic;
if (base <= 0)
base = t->last_trigger.monotonic;
@@ -429,7 +439,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
case TIMER_UNIT_INACTIVE:
leave_around = true;
- base = UNIT_TRIGGER(UNIT(t))->inactive_enter_timestamp.monotonic;
+ base = trigger->inactive_enter_timestamp.monotonic;
if (base <= 0)
base = t->last_trigger.monotonic;
@@ -552,6 +562,7 @@ fail:
static void timer_enter_running(Timer *t) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ Unit *trigger;
int r;
assert(t);
@@ -560,7 +571,14 @@ static void timer_enter_running(Timer *t) {
if (unit_stop_pending(UNIT(t)))
return;
- r = manager_add_job(UNIT(t)->manager, JOB_START, UNIT_TRIGGER(UNIT(t)), JOB_REPLACE, &error, NULL);
+ trigger = UNIT_TRIGGER(UNIT(t));
+ if (!trigger) {
+ log_unit_error(UNIT(t), "Unit to trigger vanished.");
+ timer_enter_dead(t, TIMER_FAILURE_RESOURCES);
+ return;
+ }
+
+ r = manager_add_job(UNIT(t)->manager, JOB_START, trigger, JOB_REPLACE, &error, NULL);
if (r < 0)
goto fail;
@@ -580,12 +598,16 @@ fail:
static int timer_start(Unit *u) {
Timer *t = TIMER(u);
TimerValue *v;
+ Unit *trigger;
assert(t);
assert(t->state == TIMER_DEAD || t->state == TIMER_FAILED);
- if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED)
+ trigger = UNIT_TRIGGER(u);
+ if (!trigger || trigger->load_state != UNIT_LOADED) {
+ log_unit_error(u, "Refusing to start, unit to trigger not loaded.");
return -ENOENT;
+ }
t->last_trigger = DUAL_TIMESTAMP_NULL;
diff --git a/src/delta/delta.c b/src/delta/delta.c
index b18194d2cf..a54fc89de6 100644
--- a/src/delta/delta.c
+++ b/src/delta/delta.c
@@ -428,18 +428,16 @@ static int process_suffix(const char *suffix, const char *onlyprefix) {
}
finish:
- if (top)
- hashmap_free_free(top);
- if (bottom)
- hashmap_free_free(bottom);
- if (drops) {
- HASHMAP_FOREACH_KEY(h, key, drops, i){
- hashmap_free_free(hashmap_remove(drops, key));
- hashmap_remove(drops, key);
- free(key);
- }
- hashmap_free(drops);
+ hashmap_free_free(top);
+ hashmap_free_free(bottom);
+
+ HASHMAP_FOREACH_KEY(h, key, drops, i){
+ hashmap_free_free(hashmap_remove(drops, key));
+ hashmap_remove(drops, key);
+ free(key);
}
+ hashmap_free(drops);
+
return r < 0 ? r : n_found;
}
@@ -451,9 +449,10 @@ static int process_suffixes(const char *onlyprefix) {
r = process_suffix(n, onlyprefix);
if (r < 0)
return r;
- else
- n_found += r;
+
+ n_found += r;
}
+
return n_found;
}
@@ -467,7 +466,9 @@ static int process_suffix_chop(const char *arg) {
/* Strip prefix from the suffix */
NULSTR_FOREACH(p, prefixes) {
- const char *suffix = startswith(arg, p);
+ const char *suffix;
+
+ suffix = startswith(arg, p);
if (suffix) {
suffix += strspn(suffix, "/");
if (*suffix)
@@ -575,10 +576,9 @@ static int parse_argv(int argc, char *argv[]) {
if (b < 0) {
log_error("Failed to parse diff boolean.");
return -EINVAL;
- } else if (b)
- arg_diff = 1;
- else
- arg_diff = 0;
+ }
+
+ arg_diff = b;
}
break;
@@ -593,8 +593,7 @@ static int parse_argv(int argc, char *argv[]) {
}
int main(int argc, char *argv[]) {
- int r = 0, k;
- int n_found = 0;
+ int r, k, n_found = 0;
log_parse_environment();
log_open();
@@ -618,6 +617,7 @@ int main(int argc, char *argv[]) {
for (i = optind; i < argc; i++) {
path_kill_slashes(argv[i]);
+
k = process_suffix_chop(argv[i]);
if (k < 0)
r = k;
@@ -634,8 +634,7 @@ int main(int argc, char *argv[]) {
}
if (r >= 0)
- printf("%s%i overridden configuration files found.\n",
- n_found ? "\n" : "", n_found);
+ printf("%s%i overridden configuration files found.\n", n_found ? "\n" : "", n_found);
finish:
pager_close();
diff --git a/src/nss-mymachines/nss-mymachines.c b/src/nss-mymachines/nss-mymachines.c
index 78133a39bf..1582d702f8 100644
--- a/src/nss-mymachines/nss-mymachines.c
+++ b/src/nss-mymachines/nss-mymachines.c
@@ -38,6 +38,9 @@ NSS_GETHOSTBYNAME_PROTOTYPES(mymachines);
NSS_GETPW_PROTOTYPES(mymachines);
NSS_GETGR_PROTOTYPES(mymachines);
+#define HOST_UID_LIMIT ((uid_t) UINT32_C(0x10000))
+#define HOST_GID_LIMIT ((gid_t) UINT32_C(0x10000))
+
static int count_addresses(sd_bus_message *m, int af, unsigned *ret) {
unsigned c = 0;
int r;
@@ -455,6 +458,10 @@ enum nss_status _nss_mymachines_getpwnam_r(
if (r < 0)
goto fail;
+ /* Refuse to work if the mapped address is in the host UID range, or if there was no mapping at all. */
+ if (mapped < HOST_UID_LIMIT || mapped == uid)
+ goto not_found;
+
l = strlen(name);
if (buflen < l+1) {
*errnop = ENOMEM;
@@ -504,7 +511,7 @@ enum nss_status _nss_mymachines_getpwuid_r(
}
/* We consider all uids < 65536 host uids */
- if (uid < 0x10000)
+ if (uid < HOST_UID_LIMIT)
goto not_found;
r = sd_bus_open_system(&bus);
@@ -531,6 +538,9 @@ enum nss_status _nss_mymachines_getpwuid_r(
if (r < 0)
goto fail;
+ if (mapped == uid)
+ goto not_found;
+
if (snprintf(buffer, buflen, "vu-%s-" UID_FMT, machine, (uid_t) mapped) >= (int) buflen) {
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
@@ -619,6 +629,9 @@ enum nss_status _nss_mymachines_getgrnam_r(
if (r < 0)
goto fail;
+ if (mapped < HOST_GID_LIMIT || mapped == gid)
+ goto not_found;
+
l = sizeof(char*) + strlen(name) + 1;
if (buflen < l) {
*errnop = ENOMEM;
@@ -666,7 +679,7 @@ enum nss_status _nss_mymachines_getgrgid_r(
}
/* We consider all gids < 65536 host gids */
- if (gid < 0x10000)
+ if (gid < HOST_GID_LIMIT)
goto not_found;
r = sd_bus_open_system(&bus);
@@ -693,6 +706,9 @@ enum nss_status _nss_mymachines_getgrgid_r(
if (r < 0)
goto fail;
+ if (mapped == gid)
+ goto not_found;
+
if (buflen < sizeof(char*) + 1) {
*errnop = ENOMEM;
return NSS_STATUS_TRYAGAIN;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-27 20:57:50 +0000