man/udev.xml

@@ -280,17 +280,13 @@
         <varlistentry>
           <term><varname>PROGRAM</varname></term>
           <listitem>
-            <para>Execute a program to determine whether there is a match; the key is true if the program
+            <para>Execute a program to determine whether there
-            returns successfully. The device properties are made available to the executed program in the
+            is a match; the key is true if the program returns
-            environment. The program's standard output is available in the <varname>RESULT</varname>
+            successfully. The device properties are made available to the
-            key.</para>
+            executed program in the environment. The program's standard output
-
+            is available in the <varname>RESULT</varname> key.</para>
-            <para>This can only be used for very short-running foreground tasks. For details, see
+            <para>This can only be used for very short-running foreground tasks. For details,
-            <varname>RUN</varname>.</para>
+            see <varname>RUN</varname>.</para>
-
-            <para>Note that multiple <varname>PROGRAM</varname> keys may be specified in one rule, and
-            <literal>=</literal>, <literal>:=</literal>, and <literal>+=</literal> have the same effect as
-            <literal>==</literal>.</para>
           </listitem>
         </varlistentry>
 
@@ -433,14 +429,9 @@
         <varlistentry>
           <term><varname>RUN{<replaceable>type</replaceable>}</varname></term>
           <listitem>
-            <para>Specify a program to be executed after processing of all the rules for the event. With
+            <para>Add a program to the list of programs to be executed after
-            <literal>+=</literal>, this invocation is added to the list, and with <literal>=</literal> or
+            processing all the rules for a specific event, depending on
-            <literal>:=</literal>, it replaces any previous contents of the list. Please note that both
+            <literal>type</literal>:</para>
-            <literal>program</literal> and <literal>builtin</literal> types described below use a single
-            list, so clearing the list with <literal>:=</literal> and <literal>=</literal> affects both
-            types.</para>
-
-            <para><replaceable>type</replaceable> may be:</para>
             <variablelist>
               <varlistentry>
                 <term><literal>program</literal></term>
@@ -461,21 +452,21 @@
                 </listitem>
               </varlistentry>
             </variablelist>
-
+            <para>The program name and following arguments are separated by spaces.
-            <para>The program name and following arguments are separated by spaces. Single quotes can be
+            Single quotes can be used to specify arguments with spaces.</para>
-            used to specify arguments with spaces.</para>
+            <para>This can only be used for very short-running foreground tasks. Running an
-
+            event process for a long period of time may block all further events for
-            <para>This can only be used for very short-running foreground tasks. Running an event process for
+            this or a dependent device.</para>
-            a long period of time may block all further events for this or a dependent device.</para>
+            <para>Starting daemons or other long-running processes is not appropriate
-
+            for udev; the forked processes, detached or not, will be unconditionally
-            <para>Note that running programs that access the network or mount/unmount filesystems is not
+            killed after the event handling has finished.</para>
-            allowed inside of udev rules, due to the default sandbox that is enforced on
+            <para>Note that running programs that access the network or mount/unmount
-            <filename>systemd-udevd.service</filename>.</para>
+            filesystems is not allowed inside of udev rules, due to the default sandbox
-
+            that is enforced on <filename>systemd-udevd.service</filename>.</para>
-            <para>Starting daemons or other long-running processes is not allowed; the forked processes,
+            <para>Please also note that <literal>:=</literal> and <literal>=</literal> are clearing
-            detached or not, will be unconditionally killed after the event handling has finished. In order
+            both, program and builtin commands.</para>
-            to activate long-running processes from udev rules, provide a service unit and pull it in from a
+            <para>In order to activate long-running processes from udev rules, provide a service unit, and
-            udev device using the <varname>SYSTEMD_WANTS</varname> device property. See
+            pull it in from a udev device using the <varname>SYSTEMD_WANTS</varname> device property. See
             <citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry>
             for details.</para>
           </listitem>
@@ -498,9 +489,8 @@
         <varlistentry>
           <term><varname>IMPORT{<replaceable>type</replaceable>}</varname></term>
           <listitem>
-            <para>Import a set of variables as device properties, depending on
+            <para>Import a set of variables as device properties,
-            <replaceable>type</replaceable>:</para>
+            depending on <literal>type</literal>:</para>
-
             <variablelist>
               <varlistentry>
                 <term><literal>program</literal></term>
@@ -552,14 +542,8 @@
                 </listitem>
               </varlistentry>
             </variablelist>
-
+            <para>This can only be used for very short-running foreground tasks. For details
-            <para>This can only be used for very short-running foreground tasks. For details see
+            see <option>RUN</option>.</para>
-            <option>RUN</option>.</para>
-
-            <para>Note that multiple <varname>IMPORT{}</varname> keys may be specified in one rule, and
-            <literal>=</literal>, <literal>:=</literal>, and <literal>+=</literal> have the same effect as
-            <literal>==</literal>. The key is true if the import is successful, unless <literal>!=</literal>
-            is used as the operator which causes the key to be true if the import failed.</para>
           </listitem>
         </varlistentry>
 
@@ -649,8 +633,9 @@
         <varlistentry>
           <term><option>$number</option>, <option>%n</option></term>
           <listitem>
-            <para>The kernel number for this device. For example, <literal>sda3</literal> has kernel number
+            <para>The kernel number for this device. For example,
-            3.</para>
+              <literal>sda3</literal> has kernel number <literal>3</literal>.
+            </para>
           </listitem>
         </varlistentry>
 

src/basic/string-table.c

@@ -4,10 +4,12 @@
 #include "string-util.h"
 
 ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
+        size_t i;
+
         if (!key)
                 return -1;
 
-        for (size_t i = 0; i < len; ++i)
+        for (i = 0; i < len; ++i)
                 if (streq_ptr(table[i], key))
                         return (ssize_t) i;
 

src/libsystemd/sd-device/device-internal.h

@@ -94,8 +94,8 @@ int device_read_uevent_file(sd_device *device);
 int device_set_syspath(sd_device *device, const char *_syspath, bool verify);
 int device_set_ifindex(sd_device *device, const char *ifindex);
 int device_set_devmode(sd_device *device, const char *devmode);
-int device_set_devname(sd_device *device, const char *devname);
+int device_set_devname(sd_device *device, const char *_devname);
-int device_set_devtype(sd_device *device, const char *devtype);
+int device_set_devtype(sd_device *device, const char *_devtype);
 int device_set_devnum(sd_device *device, const char *major, const char *minor);
 int device_set_subsystem(sd_device *device, const char *_subsystem);
 int device_set_driver(sd_device *device, const char *_driver);

src/libsystemd/sd-device/device-monitor.c

@@ -558,9 +558,10 @@ int device_monitor_send_device(
         r = device_get_properties_nulstr(device, (const uint8_t **) &buf, &blen);
         if (r < 0)
                 return log_device_debug_errno(device, r, "sd-device-monitor: Failed to get device properties: %m");
-        if (blen < 32)
+        if (blen < 32) {
-                log_device_debug_errno(device, SYNTHETIC_ERRNO(EINVAL),
+                log_device_debug(device, "sd-device-monitor: Length of device property nulstr is too small to contain valid device information");
-                                       "sd-device-monitor: Length of device property nulstr is too small to contain valid device information");
+                return -EINVAL;
+        }
 
         /* fill in versioned header */
         r = sd_device_get_subsystem(device, &val);

src/libsystemd/sd-device/device-private.c

@@ -363,9 +363,10 @@ static int device_append(sd_device *device, char *key, const char **_major, cons
         assert(_minor);
 
         value = strchr(key, '=');
-        if (!value)
+        if (!value) {
-                return log_device_debug_errno(device, SYNTHETIC_ERRNO(EINVAL),
+                log_device_debug(device, "sd-device: Not a key-value pair: '%s'", key);
-                                              "sd-device: Not a key-value pair: '%s'", key);
+                return -EINVAL;
+        }
 
         *value = '\0';
 
@@ -399,9 +400,10 @@ void device_seal(sd_device *device) {
 static int device_verify(sd_device *device) {
         assert(device);
 
-        if (!device->devpath || !device->subsystem || device->action < 0 || device->seqnum == 0)
+        if (!device->devpath || !device->subsystem || device->action < 0 || device->seqnum == 0) {
-                return log_device_debug_errno(device, SYNTHETIC_ERRNO(EINVAL),
+                log_device_debug(device, "sd-device: Device created from strv or nulstr lacks devpath, subsystem, action or seqnum.");
-                                              "sd-device: Device created from strv or nulstr lacks devpath, subsystem, action or seqnum.");
+                return -EINVAL;
+        }
 
         device->sealed = true;
 
@@ -462,10 +464,10 @@ int device_new_from_nulstr(sd_device **ret, uint8_t *nulstr, size_t len) {
 
                 key = (char*)&nulstr[i];
                 end = memchr(key, '\0', len - i);
-                if (!end)
+                if (!end) {
-                        return log_device_debug_errno(device, SYNTHETIC_ERRNO(EINVAL),
+                        log_device_debug(device, "sd-device: Failed to parse nulstr");
-                                                      "sd-device: Failed to parse nulstr");
+                        return -EINVAL;
-
+                }
                 i += end - key + 1;
 
                 r = device_append(device, key, &major, &minor);

src/libsystemd/sd-device/device-util.h

@@ -37,7 +37,7 @@
                 sd_device *_d = (device);                               \
                 int _level = (level), _error = (error);                 \
                                                                         \
-                if (_d && _unlikely_(log_get_max_level() >= LOG_PRI(_level))) \
+                if (_d && _unlikely_(log_get_max_level() >= _level))    \
                         (void) sd_device_get_sysname(_d, &_sysname);    \
                 log_object_internal(_level, _error, PROJECT_FILE, __LINE__, __func__, \
                                     _sysname ? "DEVICE=" : NULL, _sysname, \

src/libsystemd/sd-device/sd-device.c

@@ -320,22 +320,24 @@ _public_ int sd_device_new_from_subsystem_sysname(sd_device **ret, const char *s
         return -ENODEV;
 }
 
-int device_set_devtype(sd_device *device, const char *devtype) {
+int device_set_devtype(sd_device *device, const char *_devtype) {
-        _cleanup_free_ char *t = NULL;
+        _cleanup_free_ char *devtype = NULL;
         int r;
 
         assert(device);
-        assert(devtype);
+        assert(_devtype);
 
-        t = strdup(devtype);
+        devtype = strdup(_devtype);
-        if (!t)
+        if (!devtype)
                 return -ENOMEM;
 
-        r = device_add_property_internal(device, "DEVTYPE", t);
+        r = device_add_property_internal(device, "DEVTYPE", devtype);
         if (r < 0)
                 return r;
 
-        return free_and_replace(device->devtype, t);
+        free_and_replace(device->devtype, devtype);
+
+        return 0;
 }
 
 int device_set_ifindex(sd_device *device, const char *name) {
@@ -357,25 +359,30 @@ int device_set_ifindex(sd_device *device, const char *name) {
         return 0;
 }
 
-int device_set_devname(sd_device *device, const char *devname) {
+int device_set_devname(sd_device *device, const char *_devname) {
-        _cleanup_free_ char *t = NULL;
+        _cleanup_free_ char *devname = NULL;
         int r;
 
         assert(device);
-        assert(devname);
+        assert(_devname);
 
-        if (devname[0] != '/')
+        if (_devname[0] != '/') {
-                t = strjoin("/dev/", devname);
+                r = asprintf(&devname, "/dev/%s", _devname);
-        else
+                if (r < 0)
-                t = strdup(devname);
+                        return -ENOMEM;
-        if (!t)
+        } else {
-                return -ENOMEM;
+                devname = strdup(_devname);
+                if (!devname)
+                        return -ENOMEM;
+        }
 
-        r = device_add_property_internal(device, "DEVNAME", t);
+        r = device_add_property_internal(device, "DEVNAME", devname);
         if (r < 0)
                 return r;
 
-        return free_and_replace(device->devname, t);
+        free_and_replace(device->devname, devname);
+
+        return 0;
 }
 
 int device_set_devmode(sd_device *device, const char *_devmode) {
@@ -1243,15 +1250,17 @@ int device_get_id_filename(sd_device *device, const char **ret) {
                         if (!subsystem)
                                 return -EINVAL;
 
-
+                        if (streq(subsystem, "drivers")) {
-                        if (streq(subsystem, "drivers"))
                                 /* the 'drivers' pseudo-subsystem is special, and needs the real subsystem
                                  * encoded as well */
-                                id = strjoin("+drivers:", device->driver_subsystem, ":", sysname);
+                                r = asprintf(&id, "+drivers:%s:%s", device->driver_subsystem, sysname);
-                        else
+                                if (r < 0)
-                                id = strjoin("+", subsystem, ":", sysname);
+                                        return -ENOMEM;
-                        if (!id)
+                        } else {
-                                return -ENOMEM;
+                                r = asprintf(&id, "+%s:%s", subsystem, sysname);
+                                if (r < 0)
+                                        return -ENOMEM;
+                        }
                 }
 
                 device->id_filename = TAKE_PTR(id);

src/mount/mount-tool.c

@@ -936,9 +936,10 @@ static int umount_by_device(sd_bus *bus, const char *what) {
         if (r < 0)
                 return log_device_error_errno(d, r, "Failed to get device property: %m");
 
-        if (!streq(v, "filesystem"))
+        if (!streq(v, "filesystem")) {
-                return log_device_error_errno(d, SYNTHETIC_ERRNO(EINVAL),
+                log_device_error(d, "%s does not contain a known file system.", what);
-                                              "%s does not contain a known file system.", what);
+                return -EINVAL;
+        }
 
         if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE", &v) >= 0)
                 r2 = stop_mounts(bus, v);
@@ -1274,9 +1275,10 @@ static int discover_loop_backing_file(void) {
         if (r < 0)
                 return log_error_errno(r, "Failed to get device from device number: %m");
 
-        if (sd_device_get_property_value(d, "ID_FS_USAGE", &v) < 0 || !streq(v, "filesystem"))
+        if (sd_device_get_property_value(d, "ID_FS_USAGE", &v) < 0 || !streq(v, "filesystem")) {
-                return log_device_error_errno(d, SYNTHETIC_ERRNO(EINVAL),
+                log_device_error(d, "%s does not contain a known file system.", arg_mount_what);
-                                              "%s does not contain a known file system.", arg_mount_what);
+                return -EINVAL;
+        }
 
         r = acquire_mount_type(d);
         if (r < 0)

src/network/networkd-ndisc.c

@@ -148,35 +148,33 @@ static int ndisc_router_process_default(Link *link, sd_ndisc_router *rt) {
         unsigned preference;
         uint32_t mtu;
         usec_t time_now;
+        int r;
         Address *address;
         Iterator i;
-        int r;
 
         assert(link);
         assert(rt);
 
         r = sd_ndisc_router_get_lifetime(rt, &lifetime);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get gateway lifetime from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get gateway address from RA: %m");
 
         if (lifetime == 0) /* not a default router */
                 return 0;
 
         r = sd_ndisc_router_get_address(rt, &gateway.in6);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get gateway address from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get gateway address from RA: %m");
 
         SET_FOREACH(address, link->addresses, i) {
                 if (address->family != AF_INET6)
                         continue;
                 if (in_addr_equal(AF_INET6, &gateway, &address->in_addr)) {
-                        if (DEBUG_LOGGING) {
+                        _cleanup_free_ char *buffer = NULL;
-                                _cleanup_free_ char *buffer = NULL;
 
-                                (void) in_addr_to_string(AF_INET6, &address->in_addr, &buffer);
+                        (void) in_addr_to_string(AF_INET6, &address->in_addr, &buffer);
-                                log_link_debug(link, "No NDisc route added, gateway %s matches local address",
+                        log_link_debug(link, "No NDisc route added, gateway %s matches local address",
-                                               strnull(buffer));
+                                       strnull(buffer));
-                        }
                         return 0;
                 }
         }
@@ -185,34 +183,32 @@ static int ndisc_router_process_default(Link *link, sd_ndisc_router *rt) {
                 if (address->family != AF_INET6)
                         continue;
                 if (in_addr_equal(AF_INET6, &gateway, &address->in_addr)) {
-                        if (DEBUG_LOGGING) {
+                        _cleanup_free_ char *buffer = NULL;
-                                _cleanup_free_ char *buffer = NULL;
 
-                                (void) in_addr_to_string(AF_INET6, &address->in_addr, &buffer);
+                        (void) in_addr_to_string(AF_INET6, &address->in_addr, &buffer);
-                                log_link_debug(link, "No NDisc route added, gateway %s matches local address",
+                        log_link_debug(link, "No NDisc route added, gateway %s matches local address",
-                                               strnull(buffer));
+                                       strnull(buffer));
-                        }
                         return 0;
                 }
         }
 
         r = sd_ndisc_router_get_preference(rt, &preference);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get default router preference from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get default router preference from RA: %m");
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
 
         r = sd_ndisc_router_get_mtu(rt, &mtu);
         if (r == -ENODATA)
                 mtu = 0;
         else if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get default router MTU from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get default router MTU from RA: %m");
 
         r = route_new(&route);
         if (r < 0)
-                return log_oom();
+                return log_link_error_errno(link, r, "Could not allocate route: %m");
 
         route->family = AF_INET6;
         route->table = link_get_ipv6_accept_ra_route_table(link);
@@ -224,8 +220,11 @@ static int ndisc_router_process_default(Link *link, sd_ndisc_router *rt) {
         route->mtu = mtu;
 
         r = route_configure(route, link, ndisc_route_handler);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Could not set default route: %m");
+                log_link_warning_errno(link, r, "Could not set default route: %m");
+                link_enter_failed(link);
+                return r;
+        }
         if (r > 0)
                 link->ndisc_routes_messages++;
 
@@ -240,8 +239,11 @@ static int ndisc_router_process_default(Link *link, sd_ndisc_router *rt) {
                 route_gw->gw = gateway;
 
                 r = route_configure(route_gw, link, ndisc_route_handler);
-                if (r < 0)
+                if (r < 0) {
-                        return log_link_error_errno(link, r, "Could not set gateway: %m");
+                        log_link_error_errno(link, r, "Could not set gateway: %m");
+                        link_enter_failed(link);
+                        return r;
+                }
                 if (r > 0)
                         link->ndisc_routes_messages++;
         }
@@ -304,7 +306,7 @@ static int ndisc_router_generate_addresses(Link *link, unsigned prefixlen, uint3
 
                         r = set_put(addresses, new_address);
                         if (r < 0)
-                                return log_link_error_errno(link, r, "Failed to store SLAAC address: %m");
+                                return log_link_warning_errno(link, r, "Failed to store address: %m");
                         TAKE_PTR(new_address);
                 }
         }
@@ -329,7 +331,7 @@ static int ndisc_router_generate_addresses(Link *link, unsigned prefixlen, uint3
 
                 r = set_put(addresses, new_address);
                 if (r < 0)
-                        return log_link_error_errno(link, r, "Failed to store SLAAC address: %m");
+                        return log_link_warning_errno(link, r, "Failed to store address: %m");
                 TAKE_PTR(new_address);
         }
 
@@ -344,7 +346,7 @@ static int ndisc_router_process_autonomous_prefix(Link *link, sd_ndisc_router *r
         _cleanup_(address_freep) Address *address = NULL;
         unsigned prefixlen;
         usec_t time_now;
-        Address *a;
+        Address *existing_address, *a;
         Iterator i;
         int r;
 
@@ -353,7 +355,7 @@ static int ndisc_router_process_autonomous_prefix(Link *link, sd_ndisc_router *r
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
 
         r = sd_ndisc_router_prefix_get_prefixlen(rt, &prefixlen);
         if (r < 0)
@@ -373,7 +375,7 @@ static int ndisc_router_process_autonomous_prefix(Link *link, sd_ndisc_router *r
 
         r = address_new(&address);
         if (r < 0)
-                return log_oom();
+                return log_link_error_errno(link, r, "Could not allocate address: %m");
 
         address->family = AF_INET6;
         r = sd_ndisc_router_prefix_get_address(rt, &address->in_addr.in6);
@@ -382,11 +384,9 @@ static int ndisc_router_process_autonomous_prefix(Link *link, sd_ndisc_router *r
 
         r = ndisc_router_generate_addresses(link, prefixlen, lifetime_preferred, address, &addresses);
         if (r < 0)
-                return r;
+                return log_link_error_errno(link, r, "Failed to generate SLAAC addresses: %m");
 
         SET_FOREACH(a, addresses, i) {
-                Address *existing_address;
-
                 /* see RFC4862 section 5.5.3.e */
                 r = address_get(link, a->family, &a->in_addr, a->prefixlen, &existing_address);
                 if (r > 0) {
@@ -406,8 +406,11 @@ static int ndisc_router_process_autonomous_prefix(Link *link, sd_ndisc_router *r
                         continue;
 
                 r = address_configure(a, link, ndisc_address_handler, true);
-                if (r < 0)
+                if (r < 0) {
-                        return log_link_error_errno(link, r, "Could not set SLAAC address: %m");
+                        log_link_warning_errno(link, r, "Could not set SLAAC address: %m");
+                        link_enter_failed(link);
+                        return r;
+                }
                 if (r > 0)
                         link->ndisc_addresses_messages++;
         }
@@ -427,7 +430,7 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
 
         r = sd_ndisc_router_prefix_get_prefixlen(rt, &prefixlen);
         if (r < 0)
@@ -439,7 +442,7 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
 
         r = route_new(&route);
         if (r < 0)
-                return log_oom();
+                return log_link_error_errno(link, r, "Could not allocate route: %m");
 
         route->family = AF_INET6;
         route->table = link_get_ipv6_accept_ra_route_table(link);
@@ -454,8 +457,11 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
                 return log_link_error_errno(link, r, "Failed to get prefix address: %m");
 
         r = route_configure(route, link, ndisc_route_handler);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Could not set prefix route: %m");;
+                log_link_warning_errno(link, r, "Could not set prefix route: %m");
+                link_enter_failed(link);
+                return r;
+        }
         if (r > 0)
                 link->ndisc_routes_messages++;
 
@@ -474,30 +480,30 @@ static int ndisc_router_process_route(Link *link, sd_ndisc_router *rt) {
 
         r = sd_ndisc_router_route_get_lifetime(rt, &lifetime);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get gateway lifetime from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get gateway address from RA: %m");
 
         if (lifetime == 0)
                 return 0;
 
         r = sd_ndisc_router_get_address(rt, &gateway);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get gateway address from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get gateway address from RA: %m");
 
         r = sd_ndisc_router_route_get_prefixlen(rt, &prefixlen);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get route prefix length: %m");
+                return log_link_warning_errno(link, r, "Failed to get route prefix length: %m");
 
         r = sd_ndisc_router_route_get_preference(rt, &preference);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get default router preference from RA: %m");
+                return log_link_warning_errno(link, r, "Failed to get default router preference from RA: %m");
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
 
         r = route_new(&route);
         if (r < 0)
-                return log_oom();
+                return log_link_error_errno(link, r, "Could not allocate route: %m");
 
         route->family = AF_INET6;
         route->table = link_get_ipv6_accept_ra_route_table(link);
@@ -513,8 +519,11 @@ static int ndisc_router_process_route(Link *link, sd_ndisc_router *rt) {
                 return log_link_error_errno(link, r, "Failed to get route address: %m");
 
         r = route_configure(route, link, ndisc_route_handler);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Could not set additional route: %m");
+                log_link_warning_errno(link, r, "Could not set additional route: %m");
+                link_enter_failed(link);
+                return r;
+        }
         if (r > 0)
                 link->ndisc_routes_messages++;
 
@@ -535,24 +544,24 @@ static int ndisc_router_process_rdnss(Link *link, sd_ndisc_router *rt) {
         uint32_t lifetime;
         const struct in6_addr *a;
         usec_t time_now;
-        int n, r;
+        int i, n, r;
 
         assert(link);
         assert(rt);
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
 
         r = sd_ndisc_router_rdnss_get_lifetime(rt, &lifetime);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RDNSS lifetime: %m");
+                return log_link_warning_errno(link, r, "Failed to get RDNSS lifetime: %m");
 
         n = sd_ndisc_router_rdnss_get_addresses(rt, &a);
         if (n < 0)
-                return log_link_error_errno(link, n, "Failed to get RDNSS addresses: %m");
+                return log_link_warning_errno(link, n, "Failed to get RDNSS addresses: %m");
 
-        for (int i = 0; i < n; i++) {
+        for (i = 0; i < n; i++) {
                 _cleanup_free_ NDiscRDNSS *x = NULL;
                 NDiscRDNSS d = {
                         .address = a[i],
@@ -607,7 +616,7 @@ static int ndisc_dnssl_compare_func(const NDiscDNSSL *a, const NDiscDNSSL *b) {
 
 DEFINE_PRIVATE_HASH_OPS(ndisc_dnssl_hash_ops, NDiscDNSSL, ndisc_dnssl_hash_func, ndisc_dnssl_compare_func);
 
-static int ndisc_router_process_dnssl(Link *link, sd_ndisc_router *rt) {
+static void ndisc_router_process_dnssl(Link *link, sd_ndisc_router *rt) {
         _cleanup_strv_free_ char **l = NULL;
         uint32_t lifetime;
         usec_t time_now;
@@ -618,24 +627,32 @@ static int ndisc_router_process_dnssl(Link *link, sd_ndisc_router *rt) {
         assert(rt);
 
         r = sd_ndisc_router_get_timestamp(rt, clock_boottime_or_monotonic(), &time_now);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
+                log_link_warning_errno(link, r, "Failed to get RA timestamp: %m");
+                return;
+        }
 
         r = sd_ndisc_router_dnssl_get_lifetime(rt, &lifetime);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Failed to get DNSSL lifetime: %m");
+                log_link_warning_errno(link, r, "Failed to get RDNSS lifetime: %m");
+                return;
+        }
 
         r = sd_ndisc_router_dnssl_get_domains(rt, &l);
-        if (r < 0)
+        if (r < 0) {
-                return log_link_error_errno(link, r, "Failed to get DNSSL addresses: %m");
+                log_link_warning_errno(link, r, "Failed to get RDNSS addresses: %m");
+                return;
+        }
 
         STRV_FOREACH(i, l) {
-                _cleanup_free_ NDiscDNSSL *s = NULL;
+                _cleanup_free_ NDiscDNSSL *s;
                 NDiscDNSSL *x;
 
                 s = malloc0(ALIGN(sizeof(NDiscDNSSL)) + strlen(*i) + 1);
-                if (!s)
+                if (!s) {
-                        return log_oom();
+                        log_oom();
+                        return;
+                }
 
                 strcpy(NDISC_DNSSL_DOMAIN(s), *i);
 
@@ -661,32 +678,35 @@ static int ndisc_router_process_dnssl(Link *link, sd_ndisc_router *rt) {
                 s->valid_until = time_now + lifetime * USEC_PER_SEC;
 
                 r = set_ensure_consume(&link->ndisc_dnssl, &ndisc_dnssl_hash_ops, TAKE_PTR(s));
-                if (r < 0)
+                if (r < 0) {
-                        return log_oom();
+                        log_oom();
+                        return;
+                }
                 assert(r > 0);
 
                 link_dirty(link);
         }
-
-        return 0;
 }
 
 static int ndisc_router_process_options(Link *link, sd_ndisc_router *rt) {
+        int r;
+
         assert(link);
         assert(link->network);
         assert(rt);
 
-        for (int r = sd_ndisc_router_option_rewind(rt); ; r = sd_ndisc_router_option_next(rt)) {
+        r = sd_ndisc_router_option_rewind(rt);
+        for (;;) {
                 uint8_t type;
 
                 if (r < 0)
-                        return log_link_error_errno(link, r, "Failed to iterate through options: %m");
+                        return log_link_warning_errno(link, r, "Failed to iterate through options: %m");
                 if (r == 0) /* EOF */
-                        return 0;
+                        break;
 
                 r = sd_ndisc_router_option_get_type(rt, &type);
                 if (r < 0)
-                        return log_link_error_errno(link, r, "Failed to get RA option type: %m");
+                        return log_link_warning_errno(link, r, "Failed to get RA option type: %m");
 
                 switch (type) {
 
@@ -705,52 +725,44 @@ static int ndisc_router_process_options(Link *link, sd_ndisc_router *rt) {
                                         (void) in_addr_to_string(AF_INET6, &a, &b);
                                         log_link_debug(link, "Prefix '%s' is deny-listed, ignoring", strna(b));
                                 }
+
                                 break;
                         }
 
                         r = sd_ndisc_router_prefix_get_flags(rt, &flags);
                         if (r < 0)
-                                return log_link_error_errno(link, r, "Failed to get RA prefix flags: %m");
+                                return log_link_warning_errno(link, r, "Failed to get RA prefix flags: %m");
 
                         if (link->network->ipv6_accept_ra_use_onlink_prefix &&
-                            FLAGS_SET(flags, ND_OPT_PI_FLAG_ONLINK)) {
+                            FLAGS_SET(flags, ND_OPT_PI_FLAG_ONLINK))
-                                r = ndisc_router_process_onlink_prefix(link, rt);
+                                (void) ndisc_router_process_onlink_prefix(link, rt);
-                                if (r < 0)
-                                        return r;
-                        }
 
                         if (link->network->ipv6_accept_ra_use_autonomous_prefix &&
-                            FLAGS_SET(flags, ND_OPT_PI_FLAG_AUTO)) {
+                            FLAGS_SET(flags, ND_OPT_PI_FLAG_AUTO))
-                                r = ndisc_router_process_autonomous_prefix(link, rt);
+                                (void) ndisc_router_process_autonomous_prefix(link, rt);
-                                if (r < 0)
+
-                                        return r;
-                        }
                         break;
                 }
 
                 case SD_NDISC_OPTION_ROUTE_INFORMATION:
-                        r = ndisc_router_process_route(link, rt);
+                        (void) ndisc_router_process_route(link, rt);
-                        if (r < 0)
-                                return r;
                         break;
 
                 case SD_NDISC_OPTION_RDNSS:
-                        if (link->network->ipv6_accept_ra_use_dns) {
+                        if (link->network->ipv6_accept_ra_use_dns)
-                                r = ndisc_router_process_rdnss(link, rt);
+                                (void) ndisc_router_process_rdnss(link, rt);
-                                if (r < 0)
-                                        return r;
-                        }
                         break;
 
                 case SD_NDISC_OPTION_DNSSL:
-                        if (link->network->ipv6_accept_ra_use_dns) {
+                        if (link->network->ipv6_accept_ra_use_dns)
-                                r = ndisc_router_process_dnssl(link, rt);
+                                (void) ndisc_router_process_dnssl(link, rt);
-                                if (r < 0)
-                                        return r;
-                        }
                         break;
                 }
+
+                r = sd_ndisc_router_option_next(rt);
         }
+
+        return 0;
 }
 
 static int ndisc_router_handler(Link *link, sd_ndisc_router *rt) {
@@ -764,7 +776,7 @@ static int ndisc_router_handler(Link *link, sd_ndisc_router *rt) {
 
         r = sd_ndisc_router_get_flags(rt, &flags);
         if (r < 0)
-                return log_link_error_errno(link, r, "Failed to get RA flags: %m");
+                return log_link_warning_errno(link, r, "Failed to get RA flags: %m");
 
         if ((flags & (ND_RA_FLAG_MANAGED | ND_RA_FLAG_OTHER) && link->network->ipv6_accept_ra_start_dhcp6_client)) {
 
@@ -773,27 +785,23 @@ static int ndisc_router_handler(Link *link, sd_ndisc_router *rt) {
                 else
                         /* (re)start DHCPv6 client in stateful or stateless mode according to RA flags */
                         r = dhcp6_request_address(link, !(flags & ND_RA_FLAG_MANAGED));
+
                 if (r < 0 && r != -EBUSY)
-                        return log_link_error_errno(link, r, "Could not acquire DHCPv6 lease on NDisc request: %m");
+                        log_link_warning_errno(link, r, "Could not acquire DHCPv6 lease on NDisc request: %m");
                 else {
                         log_link_debug(link, "Acquiring DHCPv6 lease on NDisc request");
                         r = 0;
                 }
         }
 
-        r = ndisc_router_process_default(link, rt);
+        (void) ndisc_router_process_default(link, rt);
-        if (r < 0)
+        (void) ndisc_router_process_options(link, rt);
-                return r;
-        r = ndisc_router_process_options(link, rt);
-        if (r < 0)
-                return r;
 
         return r;
 }
 
 static void ndisc_handler(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *rt, void *userdata) {
         Link *link = userdata;
-        int r;
 
         assert(link);
 
@@ -806,11 +814,7 @@ static void ndisc_handler(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *r
                 link->ndisc_addresses_configured = false;
                 link->ndisc_routes_configured = false;
 
-                r = ndisc_router_handler(link, rt);
+                (void) ndisc_router_handler(link, rt);
-                if (r < 0) {
-                        link_enter_failed(link);
-                        return;
-                }
 
                 if (link->ndisc_addresses_messages == 0)
                         link->ndisc_addresses_configured = true;
@@ -843,7 +847,7 @@ static void ndisc_handler(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *r
 
                 break;
         default:
-                assert_not_reached("IPv6 Neighbor Discovery unknown event");
+                log_link_warning(link, "IPv6 Neighbor Discovery unknown event: %d", event);
         }
 }
 

src/network/networkd-network-gperf.gperf

@@ -270,7 +270,7 @@ BridgeFDB.AssociatedWith,                    config_parse_fdb_ntf_flags,
 BridgeVLAN.PVID,                             config_parse_brvlan_pvid,                                 0,                             0
 BridgeVLAN.VLAN,                             config_parse_brvlan_vlan,                                 0,                             0
 BridgeVLAN.EgressUntagged,                   config_parse_brvlan_untagged,                             0,                             0
-Network.IPv6PrefixDelegation,                config_parse_router_prefix_delegation,                    0,                             offsetof(Network, router_prefix_delegation)
+Network.IPv6PrefixDelegation,                config_parse_router_prefix_delegation,                    0,                             0
 Network.IPv6PDSubnetId,                      config_parse_router_prefix_subnet_id,                     0,                             0
 IPv6PrefixDelegation.RouterLifetimeSec,      config_parse_sec,                                         0,                             offsetof(Network, router_lifetime_usec)
 IPv6PrefixDelegation.Managed,                config_parse_bool,                                        0,                             offsetof(Network, router_managed)

src/network/networkd-radv.c

@@ -219,11 +219,10 @@ int config_parse_prefix(const char *unit,
                 return 0;
         }
 
-        r = sd_radv_prefix_set_prefix(p->radv_prefix, &in6addr.in6, prefixlen);
+        if (sd_radv_prefix_set_prefix(p->radv_prefix, &in6addr.in6, prefixlen) < 0)
-        if (r < 0) {
+                return -EADDRNOTAVAIL;
-                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set radv prefix, ignoring assignment: %s", rvalue);
+
-                return 0;
+        log_syntax(unit, LOG_INFO, filename, line, r, "Found prefix %s", rvalue);
-        }
 
         p = NULL;
 
@@ -242,7 +241,7 @@ int config_parse_prefix_flags(const char *unit,
                               void *userdata) {
         Network *network = userdata;
         _cleanup_(prefix_free_or_set_invalidp) Prefix *p = NULL;
-        int r;
+        int r, val;
 
         assert(filename);
         assert(section);
@@ -256,18 +255,18 @@ int config_parse_prefix_flags(const char *unit,
 
         r = parse_boolean(rvalue);
         if (r < 0) {
-                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue);
+                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address flag, ignoring: %s", rvalue);
                 return 0;
         }
 
+        val = r;
+
         if (streq(lvalue, "OnLink"))
-                r = sd_radv_prefix_set_onlink(p->radv_prefix, r);
+                r = sd_radv_prefix_set_onlink(p->radv_prefix, val);
         else if (streq(lvalue, "AddressAutoconfiguration"))
-                r = sd_radv_prefix_set_address_autoconfiguration(p->radv_prefix, r);
+                r = sd_radv_prefix_set_address_autoconfiguration(p->radv_prefix, val);
-        if (r < 0) {
+        if (r < 0)
-                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set %s=, ignoring assignment: %m", lvalue);
+                return r;
-                return 0;
-        }
 
         p = NULL;
 
@@ -312,10 +311,8 @@ int config_parse_prefix_lifetime(const char *unit,
         else if (streq(lvalue, "ValidLifetimeSec"))
                 r = sd_radv_prefix_set_valid_lifetime(p->radv_prefix,
                                                       DIV_ROUND_UP(usec, USEC_PER_SEC));
-        if (r < 0) {
+        if (r < 0)
-                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set %s=, ignoring assignment: %m", lvalue);
+                return r;
-                return 0;
-        }
 
         p = NULL;
 
@@ -395,11 +392,10 @@ int config_parse_route_prefix(const char *unit,
                 return 0;
         }
 
-        r = sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen);
+        if (sd_radv_prefix_set_route_prefix(p->radv_route_prefix, &in6addr.in6, prefixlen) < 0)
-        if (r < 0) {
+                return -EADDRNOTAVAIL;
-                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to set route prefix, ignoring assignment: %m");
+
-                return 0;
+        log_syntax(unit, LOG_INFO, filename, line, r, "Found route prefix %s", rvalue);
-        }
 
         p = NULL;
 
@@ -440,11 +436,8 @@ int config_parse_route_prefix_lifetime(const char *unit,
 
         /* a value of 0xffffffff represents infinity */
         r = sd_radv_route_prefix_set_lifetime(p->radv_route_prefix, DIV_ROUND_UP(usec, USEC_PER_SEC));
-        if (r < 0) {
+        if (r < 0)
-                log_syntax(unit, LOG_WARNING, filename, line, r,
+                return r;
-                           "Failed to set route lifetime, ignoring assignment: %m");
-                return 0;
-        }
 
         p = NULL;
 
@@ -835,10 +828,38 @@ DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(
                 RADVPrefixDelegation,
                 RADV_PREFIX_DELEGATION_BOTH);
 
-DEFINE_CONFIG_PARSE_ENUM(config_parse_router_prefix_delegation,
+int config_parse_router_prefix_delegation(
-                         radv_prefix_delegation,
+                const char *unit,
-                         RADVPrefixDelegation,
+                const char *filename,
-                         "Invalid router prefix delegation");
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        Network *network = userdata;
+        RADVPrefixDelegation d;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        d = radv_prefix_delegation_from_string(rvalue);
+        if (d < 0) {
+                log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL),
+                           "Invalid router prefix delegation '%s', ignoring assignment.", rvalue);
+                return 0;
+        }
+
+        network->router_prefix_delegation = d;
+
+        return 0;
+}
 
 int config_parse_router_preference(const char *unit,
                                    const char *filename,
@@ -896,16 +917,10 @@ int config_parse_router_prefix_subnet_id(const char *unit,
         }
 
         r = safe_atoux64(rvalue, &t);
-        if (r < 0) {
+        if (r < 0 || t > INT64_MAX) {
                 log_syntax(unit, LOG_WARNING, filename, line, r,
-                           "Failed to parse %s=, ignoring assignment: %s",
+                                "Subnet id '%s' is invalid, ignoring assignment.",
-                           lvalue, rvalue);
+                                rvalue);
-                return 0;
-        }
-        if (t > INT64_MAX) {
-                log_syntax(unit, LOG_WARNING, filename, line, r,
-                           "Invalid subnet id '%s', ignoring assignment.",
-                           rvalue);
                 return 0;
         }
 

src/udev/udev-node.c

@@ -47,10 +47,10 @@ static int node_symlink(sd_device *dev, const char *node, const char *slink) {
 
         /* preserve link with correct target, do not replace node of other device */
         if (lstat(slink, &stats) == 0) {
-                if (S_ISBLK(stats.st_mode) || S_ISCHR(stats.st_mode))
+                if (S_ISBLK(stats.st_mode) || S_ISCHR(stats.st_mode)) {
-                        return log_device_error_errno(dev, SYNTHETIC_ERRNO(EOPNOTSUPP),
+                        log_device_error(dev, "Conflicting device node '%s' found, link to '%s' will not be created.", slink, node);
-                                                      "Conflicting device node '%s' found, link to '%s' will not be created.", slink, node);
+                        return -EOPNOTSUPP;
-                else if (S_ISLNK(stats.st_mode)) {
+                } else if (S_ISLNK(stats.st_mode)) {
                         _cleanup_free_ char *buf = NULL;
 
                         if (readlink_malloc(slink, &buf) >= 0 &&

src/udev/udev-rules.c

@@ -595,7 +595,7 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                 if (!is_match) {
                         if (streq(value, "%k"))
                                 return log_token_error_errno(rules, SYNTHETIC_ERRNO(EINVAL),
-                                                             "NAME=\"%%k\" is ignored, as it breaks kernel supplied names.");
+                                                             "Ignoring NAME=\"%%k\" is ignored, as it breaks kernel supplied names.");
                         if (isempty(value))
                                 return log_token_error_errno(rules, SYNTHETIC_ERRNO(EINVAL),
                                                              "Ignoring NAME=\"\", as udev will not delete any device nodes.");
@@ -755,8 +755,10 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                 check_value_format_and_warn(rules, key, value, true);
                 if (op == OP_REMOVE)
                         return log_token_invalid_op(rules, key);
-                if (!is_match)
+                if (!is_match) {
+                        log_token_debug(rules, "%s key takes '==' or '!=' operator, assuming '=='.", key);
                         op = OP_MATCH;
+                }
 
                 r = rule_line_add_token(rule_line, TK_M_PROGRAM, op, value, NULL);
         } else if (streq(key, "IMPORT")) {
@@ -765,8 +767,10 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                 check_value_format_and_warn(rules, key, value, true);
                 if (op == OP_REMOVE)
                         return log_token_invalid_op(rules, key);
-                if (!is_match)
+                if (!is_match) {
+                        log_token_debug(rules, "%s key takes '==' or '!=' operator, assuming '=='.", key);
                         op = OP_MATCH;
+                }
 
                 if (streq(attr, "file"))
                         r = rule_line_add_token(rule_line, TK_M_IMPORT_FILE, op, value, NULL);
@@ -809,8 +813,10 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                         return log_token_invalid_attr(rules, key);
                 if (is_match || op == OP_REMOVE)
                         return log_token_invalid_op(rules, key);
-                if (op == OP_ADD)
+                if (op == OP_ADD) {
+                        log_token_debug(rules, "Operator '+=' is specified to %s key, assuming '='.", key);
                         op = OP_ASSIGN;
+                }
 
                 if (streq(value, "string_escape=none"))
                         r = rule_line_add_token(rule_line, TK_A_OPTIONS_STRING_ESCAPE_NONE, op, NULL, NULL);
@@ -860,7 +866,7 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                         check_value_format_and_warn(rules, key, value, true);
                         r = rule_line_add_token(rule_line, TK_A_OWNER, op, value, NULL);
                 } else {
-                        log_token_debug(rules, "User name resolution is disabled, ignoring %s=%s", key, value);
+                        log_token_debug(rules, "Resolving user name is disabled, ignoring %s=%s", key, value);
                         return 0;
                 }
         } else if (streq(key, "GROUP")) {
@@ -943,7 +949,7 @@ static int parse_token(UdevRules *rules, const char *key, char *attr, UdevRuleOp
                 if (op != OP_ASSIGN)
                         return log_token_invalid_op(rules, key);
                 if (FLAGS_SET(rule_line->type, LINE_HAS_GOTO)) {
-                        log_token_warning(rules, "Contains multiple GOTO keys, ignoring GOTO=\"%s\".", value);
+                        log_token_warning(rules, "Contains multiple GOTO key, ignoring GOTO=\"%s\".", value);
                         return 0;
                 }
 
@@ -1655,7 +1661,7 @@ static int udev_rule_apply_token_to_event(
                 if (r == -ENOENT)
                         return token->op == OP_NOMATCH;
                 if (r < 0)
-                        return log_rule_error_errno(dev, rules, r, "Failed to test for the existence of '%s': %m", buf);
+                        return log_rule_error_errno(dev, rules, r, "Failed to test the existence of '%s': %m", buf);
 
                 if (stat(buf, &statbuf) < 0)
                         return token->op == OP_NOMATCH;
@@ -1676,16 +1682,16 @@ static int udev_rule_apply_token_to_event(
                 r = udev_event_spawn(event, timeout_usec, timeout_signal, true, buf, result, sizeof(result));
                 if (r != 0) {
                         if (r < 0)
-                                log_rule_warning_errno(dev, rules, r, "Failed to execute \"%s\": %m", buf);
+                                log_rule_warning_errno(dev, rules, r, "Failed to execute '%s', ignoring: %m", buf);
                         else /* returned value is positive when program fails */
-                                log_rule_debug(dev, rules, "Command \"%s\" returned %d (error)", buf, r);
+                                log_rule_debug(dev, rules, "Command \"%s\" returned %d (error), ignoring", buf, r);
                         return token->op == OP_NOMATCH;
                 }
 
                 delete_trailing_chars(result, "\n");
                 count = util_replace_chars(result, UDEV_ALLOWED_CHARS_INPUT);
                 if (count > 0)
-                        log_rule_debug(dev, rules, "Replaced %zu character(s) in result of \"%s\"",
+                        log_rule_debug(dev, rules, "Replaced %zu character(s) from result of '%s'",
                                        count, buf);
 
                 event->program_result = strdup(result);

src/udev/udev-watch.c

@@ -125,7 +125,8 @@ int udev_watch_end(sd_device *dev) {
         int wd, r;
 
         if (inotify_fd < 0)
-                return 0; /* Nothing to do. */
+                return log_debug_errno(SYNTHETIC_ERRNO(EINVAL),
+                                       "Invalid inotify descriptor.");
 
         r = device_get_watch_handle(dev, &wd);
         if (r == -ENOENT)

src/udev/udevadm-info.c

@@ -44,15 +44,17 @@ static const char *arg_export_prefix = NULL;
 static usec_t arg_wait_for_initialization_timeout = 0;
 
 static bool skip_attribute(const char *name) {
-        /* Those are either displayed separately or should not be shown at all. */
+        static const char* const skip[] = {
-        return STR_IN_SET(name,
+                "uevent",
-                          "uevent",
+                "dev",
-                          "dev",
+                "modalias",
-                          "modalias",
+                "resource",
-                          "resource",
+                "driver",
-                          "driver",
+                "subsystem",
-                          "subsystem",
+                "module",
-                          "module");
+        };
+
+        return string_table_lookup(skip, ELEMENTSOF(skip), name) >= 0;
 }
 
 typedef struct SysAttr {