Report about syntax errors with metadata

The information about the unit for which files are being parsed
is passed all the way down. This way messages land in the journal
with proper UNIT=... or USER_UNIT=... attribution.

'systemctl status' and 'journalctl -u' not displaying those messages
has been a source of confusion for users, since the journal entry for
a misspelt setting was often logged quite a bit earlier than the
failure to start a unit.

Based-on-a-patch-by: Oleksii Shevchuk <alxchk@gmail.com>

18 files changed, 1040 insertions, 863 deletions

diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index d6c63cd129..3350ea1d89 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -123,7 +123,7 @@ static void parse_conf(void) {
         if (!f)
                 return;
 
-        r = config_parse(BOOTCHART_CONF, f,
+        r = config_parse(NULL, BOOTCHART_CONF, f,
                          NULL, config_item_table_lookup, (void*) items, true, NULL);
         if (r < 0)
                 log_warning("Failed to parse configuration file: %s", strerror(-r));
diff --git a/src/core/load-dropin.c b/src/core/load-dropin.c
index 95c4f894cd..67774d5238 100644
--- a/src/core/load-dropin.c
+++ b/src/core/load-dropin.c
@@ -198,7 +198,9 @@ int unit_load_dropin(Unit *u) {
                 return 0;
 
         STRV_FOREACH(f, u->dropin_paths) {
-                r = config_parse(*f, NULL, UNIT_VTABLE(u)->sections, config_item_perf_lookup, (void*) load_fragment_gperf_lookup, false, u);
+                r = config_parse(u->id, *f, NULL,
+                                 UNIT_VTABLE(u)->sections, config_item_perf_lookup,
+                                 (void*) load_fragment_gperf_lookup, false, u);
                 if (r < 0)
                         return r;
         }
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 42c181de4d..2a21727c6c 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -34,6 +34,8 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 
+#include <systemd/sd-messages.h>
+
 #include "unit.h"
 #include "strv.h"
 #include "conf-parser.h"
@@ -51,30 +53,32 @@
 #include "env-util.h"
 
 #ifndef HAVE_SYSV_COMPAT
-int config_parse_warn_compat(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
-
-        log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue);
+int config_parse_warn_compat(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
+
+        log_syntax(unit, LOG_DEBUG, filename, line, EINVAL,
+                   "Support for option %s= has been disabled at compile time and is ignored",
+                   lvalue);
         return 0;
 }
 #endif
 
-int config_parse_unit_deps(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_deps(const char* unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         UnitDependency d = ltype;
         Unit *u = userdata;
@@ -100,22 +104,22 @@ int config_parse_unit_deps(
 
                 r = unit_add_dependency_by_name(u, d, k, NULL, true);
                 if (r < 0)
-                        log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s",
-                                  filename, line, k, strerror(-r));
+                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                   "Failed to add dependency on %s, ignoring: %s", k, strerror(-r));
         }
 
         return 0;
 }
 
-int config_parse_unit_string_printf(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_string_printf(const char *unit,
+                                    const char *filename,
+                                    unsigned line,
+                                    const char *section,
+                                    const char *lvalue,
+                                    int ltype,
+                                    const char *rvalue,
+                                    void *data,
+                                    void *userdata) {
 
         Unit *u = userdata;
         _cleanup_free_ char *k = NULL;
@@ -127,21 +131,22 @@ int config_parse_unit_string_printf(
 
         k = unit_full_printf(u, rvalue);
         if (!k)
-                log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                          filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
 
-        return config_parse_string(filename, line, section, lvalue, ltype, k ? k : rvalue, data, userdata);
+        return config_parse_string(unit, filename, line, section, lvalue, ltype,
+                                   k ? k : rvalue, data, userdata);
 }
 
-int config_parse_unit_strv_printf(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_strv_printf(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         Unit *u = userdata;
         _cleanup_free_ char *k = NULL;
@@ -153,21 +158,22 @@ int config_parse_unit_strv_printf(
 
         k = unit_full_printf(u, rvalue);
         if (!k)
-                log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                          filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
 
-        return config_parse_strv(filename, line, section, lvalue, ltype, k ? k : rvalue, data, userdata);
+        return config_parse_strv(unit, filename, line, section, lvalue, ltype,
+                                 k ? k : rvalue, data, userdata);
 }
 
-int config_parse_unit_path_printf(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_path_printf(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         Unit *u = userdata;
         _cleanup_free_ char *k = NULL;
@@ -179,21 +185,22 @@ int config_parse_unit_path_printf(
 
         k = unit_full_printf(u, rvalue);
         if (!k)
-                log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                          filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
 
-        return config_parse_path(filename, line, section, lvalue, ltype, k ? k : rvalue, data, userdata);
+        return config_parse_path(unit, filename, line, section, lvalue, ltype,
+                                 k ? k : rvalue, data, userdata);
 }
 
-int config_parse_socket_listen(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_socket_listen(const char *unit,
+                               const char *filename,
+                               unsigned line,
+                               const char *section,
+                               const char *lvalue,
+                               int ltype,
+                               const char *rvalue,
+                               void *data,
+                               void *userdata) {
 
         SocketPort *p, *tail;
         Socket *s;
@@ -225,8 +232,8 @@ int config_parse_socket_listen(
                                 free(p);
                                 return log_oom();
                         } else
-                                log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                                          filename, line, rvalue);
+                                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                           "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
                 }
 
                 path_kill_slashes(p->path);
@@ -238,12 +245,13 @@ int config_parse_socket_listen(
                 p->type = SOCKET_SOCKET;
                 k = unit_full_printf(UNIT(s), rvalue);
                 if (!k)
-                        log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                                  filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
 
                 r = socket_address_parse_netlink(&p->address, k ? k : rvalue);
                 if (r < 0) {
-                        log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse address value, ignoring: %s", rvalue);
                         free(p);
                         return 0;
                 }
@@ -255,12 +263,13 @@ int config_parse_socket_listen(
                 p->type = SOCKET_SOCKET;
                 k = unit_full_printf(UNIT(s), rvalue);
                 if (!k)
-                        log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                                  filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
 
                 r = socket_address_parse(&p->address, k ? k : rvalue);
                 if (r < 0) {
-                        log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse address value, ignoring: %s", rvalue);
                         free(p);
                         return 0;
                 }
@@ -275,7 +284,8 @@ int config_parse_socket_listen(
                 }
 
                 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
-                        log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, ENOTSUP,
+                                   "Address family not supported, ignoring: %s", rvalue);
                         free(p);
                         return 0;
                 }
@@ -292,15 +302,15 @@ int config_parse_socket_listen(
         return 0;
 }
 
-int config_parse_socket_bind(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_socket_bind(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         Socket *s;
         SocketAddressBindIPv6Only b;
@@ -318,7 +328,8 @@ int config_parse_socket_bind(
 
                 r = parse_boolean(rvalue);
                 if (r < 0) {
-                        log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse bind IPv6 only value, ignoring: %s", rvalue);
                         return 0;
                 }
 
@@ -329,31 +340,34 @@ int config_parse_socket_bind(
         return 0;
 }
 
-int config_parse_exec_nice(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_nice(const char *unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         ExecContext *c = data;
-        int priority;
+        int priority, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &priority) < 0) {
-                log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);
+        r = safe_atoi(rvalue, &priority);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse nice priority, ignoring: %s. ", rvalue);
                 return 0;
         }
 
         if (priority < PRIO_MIN || priority >= PRIO_MAX) {
-                log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                           "Nice priority out of range, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -363,31 +377,34 @@ int config_parse_exec_nice(
         return 0;
 }
 
-int config_parse_exec_oom_score_adjust(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_oom_score_adjust(const char* unit,
+                                       const char *filename,
+                                       unsigned line,
+                                       const char *section,
+                                       const char *lvalue,
+                                       int ltype,
+                                       const char *rvalue,
+                                       void *data,
+                                       void *userdata) {
 
         ExecContext *c = data;
-        int oa;
+        int oa, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &oa) < 0) {
-                log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);
+        r = safe_atoi(rvalue, &oa);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse the OOM score adjust value, ignoring: %s", rvalue);
                 return 0;
         }
 
         if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
-                log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                           "OOM score adjust value out of range, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -397,15 +414,15 @@ int config_parse_exec_oom_score_adjust(
         return 0;
 }
 
-int config_parse_exec(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec(const char *unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *section,
+                      const char *lvalue,
+                      int ltype,
+                      const char *rvalue,
+                      void *data,
+                      void *userdata) {
 
         ExecCommand **e = data, *nce;
         char *path, **n;
@@ -458,8 +475,8 @@ int config_parse_exec(
                 }
 
                 if (*rvalue != '/') {
-                        log_error("[%s:%u] Executable path is not absolute, ignoring: %s",
-                                  filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Executable path is not absolute, ignoring: %s", rvalue);
                         return 0;
                 }
 
@@ -492,7 +509,9 @@ int config_parse_exec(
                                 }
 
                                 if (!utf8_is_valid(path)) {
-                                        log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+                                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                                   "Path is not UTF-8 clean, ignoring assignment: %s",
+                                                   rvalue);
                                         r = 0;
                                         goto fail;
                                 }
@@ -507,7 +526,9 @@ int config_parse_exec(
                                 }
 
                                 if (!utf8_is_valid(c)) {
-                                        log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+                                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                                   "Path is not UTF-8 clean, ignoring assignment: %s",
+                                                   rvalue);
                                         r = 0;
                                         goto fail;
                                 }
@@ -517,7 +538,8 @@ int config_parse_exec(
                 n[k] = NULL;
 
                 if (!n[0]) {
-                        log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Invalid command line, ignoring: %s", rvalue);
                         r = 0;
                         goto fail;
                 }
@@ -563,15 +585,15 @@ fail:
 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
 
-int config_parse_socket_bindtodevice(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_socket_bindtodevice(const char* unit,
+                                     const char *filename,
+                                     unsigned line,
+                                     const char *section,
+                                     const char *lvalue,
+                                     int ltype,
+                                     const char *rvalue,
+                                     void *data,
+                                     void *userdata) {
 
         Socket *s = data;
         char *n;
@@ -597,15 +619,15 @@ int config_parse_socket_bindtodevice(
 DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
 DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
 
-int config_parse_exec_io_class(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_io_class(const char *unit,
+                               const char *filename,
+                               unsigned line,
+                               const char *section,
+                               const char *lvalue,
+                               int ltype,
+                               const char *rvalue,
+                               void *data,
+                               void *userdata) {
 
         ExecContext *c = data;
         int x;
@@ -617,7 +639,8 @@ int config_parse_exec_io_class(
 
         x = ioprio_class_from_string(rvalue);
         if (x < 0) {
-                log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse IO scheduling class, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -627,26 +650,28 @@ int config_parse_exec_io_class(
         return 0;
 }
 
-int config_parse_exec_io_priority(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_io_priority(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         ExecContext *c = data;
-        int i;
+        int i, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
-                log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);
+        r = safe_atoi(rvalue, &i);
+        if (r < 0 || i < 0 || i >= IOPRIO_BE_NR) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse IO priority, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -656,15 +681,15 @@ int config_parse_exec_io_priority(
         return 0;
 }
 
-int config_parse_exec_cpu_sched_policy(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_cpu_sched_policy(const char *unit,
+                                       const char *filename,
+                                       unsigned line,
+                                       const char *section,
+                                       const char *lvalue,
+                                       int ltype,
+                                       const char *rvalue,
+                                       void *data,
+                                       void *userdata) {
 
 
         ExecContext *c = data;
@@ -677,7 +702,8 @@ int config_parse_exec_cpu_sched_policy(
 
         x = sched_policy_from_string(rvalue);
         if (x < 0) {
-                log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -x,
+                           "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -689,26 +715,28 @@ int config_parse_exec_cpu_sched_policy(
         return 0;
 }
 
-int config_parse_exec_cpu_sched_prio(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_cpu_sched_prio(const char *unit,
+                                     const char *filename,
+                                     unsigned line,
+                                     const char *section,
+                                     const char *lvalue,
+                                     int ltype,
+                                     const char *rvalue,
+                                     void *data,
+                                     void *userdata) {
 
         ExecContext *c = data;
-        int i, min, max;
+        int i, min, max, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &i) < 0) {
-                log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);
+        r = safe_atoi(rvalue, &i);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -717,7 +745,8 @@ int config_parse_exec_cpu_sched_prio(
         max = sched_get_priority_max(c->cpu_sched_policy);
 
         if (i < min || i > max) {
-                log_error("[%s:%u] CPU scheduling priority is out of range, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                           "CPU scheduling priority is out of range, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -727,15 +756,15 @@ int config_parse_exec_cpu_sched_prio(
         return 0;
 }
 
-int config_parse_exec_cpu_affinity(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_cpu_affinity(const char *unit,
+                                   const char *filename,
+                                   unsigned line,
+                                   const char *section,
+                                   const char *lvalue,
+                                   int ltype,
+                                   const char *rvalue,
+                                   void *data,
+                                   void *userdata) {
 
         ExecContext *c = data;
         char *w;
@@ -773,8 +802,8 @@ int config_parse_exec_cpu_affinity(
                 }
 
                 if (r < 0 || cpu >= c->cpuset_ncpus) {
-                        log_error("[%s:%u] Failed to parse CPU affinity %s, ignoring: %s",
-                                  filename, line, t, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                                   "Failed to parse CPU affinity '%s', ignoring: %s", t, rvalue);
                         return 0;
                 }
 
@@ -784,15 +813,15 @@ int config_parse_exec_cpu_affinity(
         return 0;
 }
 
-int config_parse_exec_capabilities(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_capabilities(const char *unit,
+                                   const char *filename,
+                                   unsigned line,
+                                   const char *section,
+                                   const char *lvalue,
+                                   int ltype,
+                                   const char *rvalue,
+                                   void *data,
+                                   void *userdata) {
 
         ExecContext *c = data;
         cap_t cap;
@@ -804,10 +833,8 @@ int config_parse_exec_capabilities(
 
         cap = cap_from_text(rvalue);
         if (!cap) {
-                if (errno == ENOMEM)
-                        return log_oom();
-
-                log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, errno,
+                           "Failed to parse capabilities, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -818,15 +845,15 @@ int config_parse_exec_capabilities(
         return 0;
 }
 
-int config_parse_exec_secure_bits(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_secure_bits(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         ExecContext *c = data;
         char *w;
@@ -858,8 +885,8 @@ int config_parse_exec_secure_bits(
                 else if (first_word(w, "noroot-locked"))
                         c->secure_bits |= 1<<SECURE_NOROOT_LOCKED;
                 else {
-                        log_error("[%s:%u] Failed to parse secure bits, ignoring: %s",
-                                  filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse secure bits, ignoring: %s", rvalue);
                         return 0;
                 }
         }
@@ -867,15 +894,15 @@ int config_parse_exec_secure_bits(
         return 0;
 }
 
-int config_parse_bounding_set(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_bounding_set(const char *unit,
+                              const char *filename,
+                              unsigned line,
+                              const char *section,
+                              const char *lvalue,
+                              int ltype,
+                              const char *rvalue,
+                              void *data,
+                              void *userdata) {
 
         uint64_t *capability_bounding_set_drop = data;
         char *w;
@@ -910,8 +937,8 @@ int config_parse_bounding_set(
 
                 r = cap_from_name(t, &cap);
                 if (r < 0) {
-                        log_error("[%s:%u] Failed to parse capability in bounding set, ignoring: %s",
-                                  filename, line, t);
+                        log_syntax(unit, LOG_ERR, filename, line, errno,
+                                   "Failed to parse capability in bounding set, ignoring: %s", t);
                         continue;
                 }
 
@@ -926,15 +953,15 @@ int config_parse_bounding_set(
         return 0;
 }
 
-int config_parse_limit(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_limit(const char *unit,
+                       const char *filename,
+                       unsigned line,
+                       const char *section,
+                       const char *lvalue,
+                       int ltype,
+                       const char *rvalue,
+                       void *data,
+                       void *userdata) {
 
         struct rlimit **rl = data;
         unsigned long long u;
@@ -948,9 +975,15 @@ int config_parse_limit(
 
         if (streq(rvalue, "infinity"))
                 u = (unsigned long long) RLIM_INFINITY;
-        else if (safe_atollu(rvalue, &u) < 0) {
-                log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);
-                return 0;
+        else {
+                int r;
+
+                r = safe_atollu(rvalue, &u);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                   "Failed to parse resource value, ignoring: %s", rvalue);
+                        return 0;
+                }
         }
 
         if (!*rl) {
@@ -963,15 +996,15 @@ int config_parse_limit(
         return 0;
 }
 
-int config_parse_unit_cgroup(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_cgroup(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         Unit *u = userdata;
         char *w;
@@ -995,8 +1028,9 @@ int config_parse_unit_cgroup(
 
                 k = unit_full_printf(u, t);
                 if (!k)
-                        log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                                  filename, line, t);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to resolve unit specifiers on %s. Ignoring.",
+                                   t);
 
                 ku = cunescape(k ? k : t);
                 if (!ku)
@@ -1004,8 +1038,9 @@ int config_parse_unit_cgroup(
 
                 r = unit_add_cgroup_from_text(u, ku, true, NULL);
                 if (r < 0) {
-                        log_error("[%s:%u] Failed to parse cgroup value %s, ignoring: %s",
-                                  filename, line, k, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                   "Failed to parse cgroup value %s, ignoring: %s",
+                                   k, rvalue);
                         return 0;
                 }
         }
@@ -1014,26 +1049,28 @@ int config_parse_unit_cgroup(
 }
 
 #ifdef HAVE_SYSV_COMPAT
-int config_parse_sysv_priority(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_sysv_priority(const char *unit,
+                               const char *filename,
+                               unsigned line,
+                               const char *section,
+                               const char *lvalue,
+                               int ltype,
+                               const char *rvalue,
+                               void *data,
+                               void *userdata) {
 
         int *priority = data;
-        int i;
+        int i, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &i) < 0 || i < 0) {
-                log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);
+        r = safe_atoi(rvalue, &i);
+        if (r < 0 || i < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse SysV start priority, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -1042,26 +1079,28 @@ int config_parse_sysv_priority(
 }
 #endif
 
-int config_parse_fsck_passno(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_fsck_passno(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         int *passno = data;
-        int i;
+        int i, r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (safe_atoi(rvalue, &i) || i < 0) {
-                log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue);
+        r = safe_atoi(rvalue, &i);
+        if (r || i < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse fsck pass number, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -1071,15 +1110,15 @@ int config_parse_fsck_passno(
 
 DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
 
-int config_parse_kill_signal(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_kill_signal(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         int *sig = data;
         int r;
@@ -1091,7 +1130,8 @@ int config_parse_kill_signal(
 
         r = signal_from_string_try_harder(rvalue);
         if (r <= 0) {
-                log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse kill signal, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -1099,15 +1139,15 @@ int config_parse_kill_signal(
         return 0;
 }
 
-int config_parse_exec_mount_flags(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_exec_mount_flags(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         ExecContext *c = data;
         char *w;
@@ -1134,8 +1174,9 @@ int config_parse_exec_mount_flags(
                 else if (streq(w, "private"))
                         flags |= MS_PRIVATE;
                 else {
-                        log_error("[%s:%u] Failed to parse mount flag %s, ignoring: %s",
-                                  filename, line, t, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse mount flag %s, ignoring: %s",
+                                   t, rvalue);
                         return 0;
                 }
         }
@@ -1144,15 +1185,15 @@ int config_parse_exec_mount_flags(
         return 0;
 }
 
-int config_parse_timer(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_timer(const char *unit,
+                       const char *filename,
+                       unsigned line,
+                       const char *section,
+                       const char *lvalue,
+                       int ltype,
+                       const char *rvalue,
+                       void *data,
+                       void *userdata) {
 
         Timer *t = data;
         usec_t u = 0;
@@ -1174,20 +1215,25 @@ int config_parse_timer(
 
         b = timer_base_from_string(lvalue);
         if (b < 0) {
-                log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -b,
+                           "Failed to parse timer base, ignoring: %s", lvalue);
                 return 0;
         }
 
         if (b == TIMER_CALENDAR) {
                 if (calendar_spec_from_string(rvalue, &c) < 0) {
-                        log_error("[%s:%u] Failed to parse calendar specification, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse calendar specification, ignoring: %s",
+                                   rvalue);
                         return 0;
                 }
 
                 id = CLOCK_REALTIME;
         } else {
                 if (parse_sec(rvalue, &u) < 0) {
-                        log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse timer value, ignoring: %s",
+                                   rvalue);
                         return 0;
                 }
 
@@ -1208,15 +1254,15 @@ int config_parse_timer(
         return 0;
 }
 
-int config_parse_timer_unit(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_timer_unit(const char *unit,
+                            const char *filename,
+                            unsigned line,
+                            const char *section,
+                            const char *lvalue,
+                            int ltype,
+                            const char *rvalue,
+                            void *data,
+                            void *userdata) {
 
         Timer *t = data;
         int r;
@@ -1236,13 +1282,16 @@ int config_parse_timer_unit(
                 return log_oom();
 
         if (endswith(p, ".timer")) {
-                log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Unit cannot be of type timer, ignoring: %s", rvalue);
                 return 0;
         }
 
         r = manager_load_unit(UNIT(t)->manager, p, NULL, NULL, &u);
         if (r < 0) {
-                log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to load unit %s, ignoring: %s",
+                           rvalue, bus_error(&error, r));
                 dbus_error_free(&error);
                 return 0;
         }
@@ -1252,15 +1301,15 @@ int config_parse_timer_unit(
         return 0;
 }
 
-int config_parse_path_spec(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_path_spec(const char *unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         Path *p = data;
         PathSpec *s;
@@ -1280,7 +1329,8 @@ int config_parse_path_spec(
 
         b = path_type_from_string(lvalue);
         if (b < 0) {
-                log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse path type, ignoring: %s", lvalue);
                 return 0;
         }
 
@@ -1290,12 +1340,14 @@ int config_parse_path_spec(
                 if (!k)
                         return log_oom();
                 else
-                        log_error("[%s:%u] Failed to resolve unit specifiers on %s. Ignoring.",
-                                  filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to resolve unit specifiers on %s. Ignoring.",
+                                   rvalue);
         }
 
         if (!path_is_absolute(k)) {
-                log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, k);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Path is not absolute, ignoring: %s", k);
                 free(k);
                 return 0;
         }
@@ -1315,15 +1367,15 @@ int config_parse_path_spec(
         return 0;
 }
 
-int config_parse_path_unit(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_path_unit(const char *unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         Path *t = data;
         int r;
@@ -1343,13 +1395,16 @@ int config_parse_path_unit(
                 return log_oom();
 
         if (endswith(p, ".path")) {
-                log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, p);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Unit cannot be of type path, ignoring: %s", p);
                 return 0;
         }
 
         r = manager_load_unit(UNIT(t)->manager, p, NULL, &error, &u);
         if (r < 0) {
-                log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, p, bus_error(&error, r));
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to load unit %s, ignoring: %s",
+                           p, bus_error(&error, r));
                 dbus_error_free(&error);
                 return 0;
         }
@@ -1359,15 +1414,15 @@ int config_parse_path_unit(
         return 0;
 }
 
-int config_parse_socket_service(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_socket_service(const char *unit,
+                                const char *filename,
+                                unsigned line,
+                                const char *section,
+                                const char *lvalue,
+                                int ltype,
+                                const char *rvalue,
+                                void *data,
+                                void *userdata) {
 
         Socket *s = data;
         int r;
@@ -1387,13 +1442,16 @@ int config_parse_socket_service(
                 return log_oom();
 
         if (!endswith(p, ".service")) {
-                log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Unit must be of type service, ignoring: %s", rvalue);
                 return 0;
         }
 
         r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
         if (r < 0) {
-                log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to load unit %s, ignoring: %s",
+                           rvalue, bus_error(&error, r));
                 dbus_error_free(&error);
                 return 0;
         }
@@ -1403,15 +1461,15 @@ int config_parse_socket_service(
         return 0;
 }
 
-int config_parse_service_sockets(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_service_sockets(const char *unit,
+                                 const char *filename,
+                                 unsigned line,
+                                 const char *section,
+                                 const char *lvalue,
+                                 int ltype,
+                                 const char *rvalue,
+                                 void *data,
+                                 void *userdata) {
 
         Service *s = data;
         int r;
@@ -1435,15 +1493,16 @@ int config_parse_service_sockets(
                         return log_oom();
 
                 if (!endswith(k, ".socket")) {
-                        log_error("[%s:%u] Unit must be of type socket, ignoring: %s",
-                                  filename, line, k);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Unit must be of type socket, ignoring: %s", k);
                         continue;
                 }
 
                 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, NULL, true);
                 if (r < 0)
-                        log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s",
-                                  filename, line, k, strerror(-r));
+                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                   "Failed to add dependency on %s, ignoring: %s",
+                                   k, strerror(-r));
 
                 r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, NULL, true);
                 if (r < 0)
@@ -1453,15 +1512,15 @@ int config_parse_service_sockets(
         return 0;
 }
 
-int config_parse_service_timeout(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_service_timeout(const char *unit,
+                                 const char *filename,
+                                 unsigned line,
+                                 const char *section,
+                                 const char *lvalue,
+                                 int ltype,
+                                 const char *rvalue,
+                                 void *data,
+                                 void *userdata) {
 
         Service *s = userdata;
         int r;
@@ -1471,7 +1530,8 @@ int config_parse_service_timeout(
         assert(rvalue);
         assert(s);
 
-        r = config_parse_sec(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+        r = config_parse_sec(unit, filename, line, section, lvalue, ltype,
+                             rvalue, data, userdata);
         if (r < 0)
                 return r;
 
@@ -1484,15 +1544,15 @@ int config_parse_service_timeout(
         return 0;
 }
 
-int config_parse_unit_env_file(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_env_file(const char *unit,
+                               const char *filename,
+                               unsigned line,
+                               const char *section,
+                               const char *lvalue,
+                               int ltype,
+                               const char *rvalue,
+                               void *data,
+                               void *userdata) {
 
         char ***env = data;
         Unit *u = userdata;
@@ -1516,7 +1576,8 @@ int config_parse_unit_env_file(
                 return log_oom();
 
         if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) {
-                log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, s);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Path '%s' is not absolute, ignoring.", s);
                 return 0;
         }
 
@@ -1527,15 +1588,15 @@ int config_parse_unit_env_file(
         return 0;
 }
 
-int config_parse_environ(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_environ(const char *unit,
+                         const char *filename,
+                         unsigned line,
+                         const char *section,
+                         const char *lvalue,
+                         int ltype,
+                         const char *rvalue,
+                         void *data,
+                         void *userdata) {
 
         Unit *u = userdata;
         char*** env = data, *w, *state;
@@ -1567,7 +1628,8 @@ int config_parse_environ(
                         return log_oom();
 
                 if (!env_assignment_is_valid(n)) {
-                        log_error("[%s:%u] Invalid environment assignment, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Invalid environment assignment, ignoring: %s", rvalue);
                         continue;
                 }
 
@@ -1582,15 +1644,15 @@ int config_parse_environ(
         return 0;
 }
 
-int config_parse_ip_tos(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_ip_tos(const char *unit,
+                        const char *filename,
+                        unsigned line,
+                        const char *section,
+                        const char *lvalue,
+                        int ltype,
+                        const char *rvalue,
+                        void *data,
+                        void *userdata) {
 
         int *ip_tos = data, x;
 
@@ -1601,7 +1663,8 @@ int config_parse_ip_tos(
 
         x = ip_tos_from_string(rvalue);
         if (x < 0) {
-                log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse IP TOS value, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -1609,15 +1672,15 @@ int config_parse_ip_tos(
         return 0;
 }
 
-int config_parse_unit_condition_path(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_condition_path(const char *unit,
+                                     const char *filename,
+                                     unsigned line,
+                                     const char *section,
+                                     const char *lvalue,
+                                     int ltype,
+                                     const char *rvalue,
+                                     void *data,
+                                     void *userdata) {
 
         ConditionType cond = ltype;
         Unit *u = data;
@@ -1650,7 +1713,8 @@ int config_parse_unit_condition_path(
                 return log_oom();
 
         if (!path_is_absolute(p)) {
-                log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, p);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Path in condition not absolute, ignoring: %s", p);
                 return 0;
         }
 
@@ -1662,15 +1726,15 @@ int config_parse_unit_condition_path(
         return 0;
 }
 
-int config_parse_unit_condition_string(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_condition_string(const char *unit,
+                                       const char *filename,
+                                       unsigned line,
+                                       const char *section,
+                                       const char *lvalue,
+                                       int ltype,
+                                       const char *rvalue,
+                                       void *data,
+                                       void *userdata) {
 
         ConditionType cond = ltype;
         Unit *u = data;
@@ -1710,15 +1774,15 @@ int config_parse_unit_condition_string(
         return 0;
 }
 
-int config_parse_unit_condition_null(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_condition_null(const char *unit,
+                                     const char *filename,
+                                     unsigned line,
+                                     const char *section,
+                                     const char *lvalue,
+                                     int ltype,
+                                     const char *rvalue,
+                                     void *data,
+                                     void *userdata) {
 
         Unit *u = data;
         Condition *c;
@@ -1747,7 +1811,9 @@ int config_parse_unit_condition_null(
 
         b = parse_boolean(rvalue);
         if (b < 0) {
-                log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -b,
+                           "Failed to parse boolean value in condition, ignoring: %s",
+                           rvalue);
                 return 0;
         }
 
@@ -1765,15 +1831,15 @@ int config_parse_unit_condition_null(
 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
 DEFINE_CONFIG_PARSE_ENUM(config_parse_start_limit_action, start_limit_action, StartLimitAction, "Failed to parse start limit action specifier");
 
-int config_parse_unit_cgroup_attr(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_cgroup_attr(const char *unit,
+                                  const char *filename,
+                                  unsigned line,
+                                  const char *section,
+                                  const char *lvalue,
+                                  int ltype,
+                                  const char *rvalue,
+                                  void *data,
+                                  void *userdata) {
 
         Unit *u = data;
         size_t a, b;
@@ -1796,7 +1862,9 @@ int config_parse_unit_cgroup_attr(
         a = strcspn(rvalue, WHITESPACE);
         b = strspn(rvalue + a, WHITESPACE);
         if (a <= 0 || b <= 0) {
-                log_error("[%s:%u] Failed to parse cgroup attribute value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse cgroup attribute value, ignoring: %s",
+                           rvalue);
                 return 0;
         }
 
@@ -1806,28 +1874,31 @@ int config_parse_unit_cgroup_attr(
 
         r = cgroup_semantics_find(NULL, n, rvalue + a + b, &v, &s);
         if (r < 0) {
-                log_error("[%s:%u] Failed to parse cgroup attribute value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse cgroup attribute value, ignoring: %s",
+                           rvalue);
                 return 0;
         }
 
         r = unit_add_cgroup_attribute(u, s, NULL, n, v ? v : rvalue + a + b, NULL);
         if (r < 0) {
-                log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to add cgroup attribute value, ignoring: %s", rvalue);
                 return 0;
         }
 
         return 0;
 }
 
-int config_parse_unit_cgroup_attr_pretty(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_cgroup_attr_pretty(const char *unit,
+                                         const char *filename,
+                                         unsigned line,
+                                         const char *section,
+                                         const char *lvalue,
+                                         int ltype,
+                                         const char *rvalue,
+                                         void *data,
+                                         void *userdata) {
 
         Unit *u = data;
         _cleanup_free_ char *v = NULL;
@@ -1841,31 +1912,36 @@ int config_parse_unit_cgroup_attr_pretty(
 
         r = cgroup_semantics_find(NULL, lvalue, rvalue, &v, &s);
         if (r < 0) {
-                log_error("[%s:%u] Failed to parse cgroup attribute value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse cgroup attribute value, ignoring: %s",
+                           rvalue);
                 return 0;
         } else if (r == 0) {
-                log_error("[%s:%u] Unknown or unsupported cgroup attribute %s, ignoring: %s", filename, line, lvalue, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, ENOTSUP,
+                           "Unknown or unsupported cgroup attribute %s, ignoring: %s",
+                           lvalue, rvalue);
                 return 0;
         }
 
         r = unit_add_cgroup_attribute(u, s, NULL, NULL, v, NULL);
         if (r < 0) {
-                log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to add cgroup attribute value, ignoring: %s", rvalue);
                 return 0;
         }
 
         return 0;
 }
 
-int config_parse_unit_requires_mounts_for(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_unit_requires_mounts_for(const char *unit,
+                                          const char *filename,
+                                          unsigned line,
+                                          const char *section,
+                                          const char *lvalue,
+                                          int ltype,
+                                          const char *rvalue,
+                                          void *data,
+                                          void *userdata) {
 
         Unit *u = userdata;
         int r;
@@ -1878,7 +1954,8 @@ int config_parse_unit_requires_mounts_for(
 
         empty_before = !u->requires_mounts_for;
 
-        r = config_parse_path_strv(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+        r = config_parse_path_strv(unit, filename, line, section, lvalue, ltype,
+                                   rvalue, data, userdata);
 
         /* Make it easy to find units with requires_mounts set */
         if (empty_before && u->requires_mounts_for)
@@ -1887,15 +1964,15 @@ int config_parse_unit_requires_mounts_for(
         return r;
 }
 
-int config_parse_documentation(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_documentation(const char *unit,
+                               const char *filename,
+                               unsigned line,
+                               const char *section,
+                               const char *lvalue,
+                               int ltype,
+                               const char *rvalue,
+                               void *data,
+                               void *userdata) {
 
         Unit *u = userdata;
         int r;
@@ -1913,7 +1990,8 @@ int config_parse_documentation(
                 return 0;
         }
 
-        r = config_parse_unit_strv_printf(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+        r = config_parse_unit_strv_printf(unit, filename, line, section, lvalue, ltype,
+                                          rvalue, data, userdata);
         if (r < 0)
                 return r;
 
@@ -1922,7 +2000,8 @@ int config_parse_documentation(
                 if (is_valid_documentation_url(*a))
                         *(b++) = *a;
                 else {
-                        log_error("[%s:%u] Invalid URL, ignoring: %s", filename, line, *a);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Invalid URL, ignoring: %s", *a);
                         free(*a);
                 }
         }
@@ -1941,15 +2020,15 @@ static void syscall_unset(uint32_t *p, int nr) {
         p[nr >> 4] &= ~(1 << (nr & 31));
 }
 
-int config_parse_syscall_filter(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_syscall_filter(const char *unit,
+                                const char *filename,
+                                unsigned line,
+                                const char *section,
+                                const char *lvalue,
+                                int ltype,
+                                const char *rvalue,
+                                void *data,
+                                void *userdata) {
 
         ExecContext *c = data;
         Unit *u = userdata;
@@ -2005,8 +2084,8 @@ int config_parse_syscall_filter(
 
                 id = syscall_from_name(t);
                 if (id < 0)  {
-                        log_error("[%s:%u] Failed to parse syscall, ignoring: %s",
-                                  filename, line, t);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Failed to parse syscall, ignoring: %s", t);
                         continue;
                 }
 
@@ -2233,7 +2312,9 @@ static int load_from_path(Unit *u, const char *path) {
                 u->load_state = UNIT_MASKED;
         else {
                 /* Now, parse the file contents */
-                r = config_parse(filename, f, UNIT_VTABLE(u)->sections, config_item_perf_lookup, (void*) load_fragment_gperf_lookup, false, u);
+                r = config_parse(u->id, filename, f, UNIT_VTABLE(u)->sections,
+                                 config_item_perf_lookup,
+                                 (void*) load_fragment_gperf_lookup, false, u);
                 if (r < 0)
                         goto finish;
 
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index dfb2ef0c3b..0161ce0938 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -29,56 +29,56 @@ int unit_load_fragment(Unit *u);
 
 void unit_dump_config_items(FILE *f);
 
-int config_parse_warn_compat(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_deps(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_string_printf(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_strv_printf(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_path_printf(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_documentation(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_socket_listen(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_socket_bind(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_nice(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_oom_score_adjust(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_service_timeout(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_service_type(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_service_restart(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_socket_bindtodevice(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_output(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_input(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_io_class(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_io_priority(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_cpu_sched_policy(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_cpu_sched_prio(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_cpu_affinity(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_capabilities(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_secure_bits(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_bounding_set(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_limit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_cgroup(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_sysv_priority(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_fsck_passno(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_kill_signal(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_exec_mount_flags(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_timer(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_timer_unit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_path_spec(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_path_unit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_socket_service(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_service_sockets(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_env_file(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_ip_tos(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_condition_path(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_condition_string(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_condition_null(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_kill_mode(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_notify_access(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_start_limit_action(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_cgroup_attr(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_cgroup_attr_pretty(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unit_requires_mounts_for(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_syscall_filter(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_environ(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_warn_compat(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_deps(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_string_printf(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_strv_printf(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_path_printf(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_documentation(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_socket_listen(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_socket_bind(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_nice(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_oom_score_adjust(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_service_timeout(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_service_type(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_service_restart(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_socket_bindtodevice(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_output(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_input(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_io_class(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_io_priority(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_cpu_sched_policy(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_cpu_sched_prio(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_cpu_affinity(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_capabilities(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_secure_bits(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_bounding_set(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_limit(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_cgroup(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_sysv_priority(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_fsck_passno(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_kill_signal(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_exec_mount_flags(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_timer(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_timer_unit(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_path_spec(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_path_unit(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_socket_service(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_service_sockets(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_env_file(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_ip_tos(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_condition_path(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_condition_string(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_condition_null(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_kill_mode(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_notify_access(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_start_limit_action(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_cgroup_attr(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_cgroup_attr_pretty(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unit_requires_mounts_for(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_syscall_filter(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_environ(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 
 /* gperf prototypes */
 const struct ConfigPerfItem* load_fragment_gperf_lookup(const char *key, unsigned length);
diff --git a/src/core/main.c b/src/core/main.c
index f0b4152542..2043345eca 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -55,6 +55,7 @@
 #include "env-util.h"
 #include "hwclock.h"
 #include "sd-daemon.h"
+#include "sd-messages.h"
 
 #include "mount-setup.h"
 #include "loopback-setup.h"
@@ -421,40 +422,47 @@ static int parse_proc_cmdline_word(const char *word) {
         return 0;
 }
 
-#define DEFINE_SETTER(name, func)                       \
-        static int name(                                \
-                        const char *filename,           \
-                        unsigned line,                  \
-                        const char *section,            \
-                        const char *lvalue,             \
-                        int ltype,                      \
-                        const char *rvalue,             \
-                        void *data,                     \
-                        void *userdata) {               \
-                                                        \
-                assert(filename);                       \
-                assert(lvalue);                         \
-                assert(rvalue);                         \
-                                                        \
-                func(rvalue);                           \
-                return 0;                               \
-}
+#define DEFINE_SETTER(name, func, descr)                              \
+        static int name(const char *unit,                             \
+                        const char *filename,                         \
+                        unsigned line,                                \
+                        const char *section,                          \
+                        const char *lvalue,                           \
+                        int ltype,                                    \
+                        const char *rvalue,                           \
+                        void *data,                                   \
+                        void *userdata) {                             \
+                                                                      \
+                int r;                                                \
+                                                                      \
+                assert(filename);                                     \
+                assert(lvalue);                                       \
+                assert(rvalue);                                       \
+                                                                      \
+                r = func(rvalue);                                     \
+                if (r < 0)                                            \
+                        log_syntax(unit, LOG_ERR, filename, line, -r, \
+                                   "Invalid " descr "'%s': %s",       \
+                                   rvalue, strerror(-r));             \
+                                                                      \
+                return 0;                                             \
+        }
 
-DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string)
-DEFINE_SETTER(config_parse_target, log_set_target_from_string)
-DEFINE_SETTER(config_parse_color, log_show_color_from_string)
-DEFINE_SETTER(config_parse_location, log_show_location_from_string)
+DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level")
+DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target")
+DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" )
+DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location")
 
 
-static int config_parse_cpu_affinity2(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+static int config_parse_cpu_affinity2(const char *unit,
+                                      const char *filename,
+                                      unsigned line,
+                                      const char *section,
+                                      const char *lvalue,
+                                      int ltype,
+                                      const char *rvalue,
+                                      void *data,
+                                      void *userdata) {
 
         char *w;
         size_t l;
@@ -482,7 +490,8 @@ static int config_parse_cpu_affinity2(
                                 return log_oom();
 
                 if (r < 0 || cpu >= ncpus) {
-                        log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                   "Failed to parse CPU affinity '%s'", rvalue);
                         CPU_FREE(c);
                         return -EBADMSG;
                 }
@@ -492,7 +501,7 @@ static int config_parse_cpu_affinity2(
 
         if (c) {
                 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
-                        log_warning("Failed to set CPU affinity: %m");
+                        log_warning_unit(unit, "Failed to set CPU affinity: %m");
 
                 CPU_FREE(c);
         }
@@ -520,15 +529,15 @@ static void free_join_controllers(void) {
         arg_join_controllers = NULL;
 }
 
-static int config_parse_join_controllers(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+static int config_parse_join_controllers(const char *unit,
+                                         const char *filename,
+                                         unsigned line,
+                                         const char *section,
+                                         const char *lvalue,
+                                         int ltype,
+                                         const char *rvalue,
+                                         void *data,
+                                         void *userdata) {
 
         unsigned n = 0;
         char *state, *w;
@@ -671,7 +680,7 @@ static int parse_config_file(void) {
                 return 0;
         }
 
-        r = config_parse(fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL);
+        r = config_parse(NULL, fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL);
         if (r < 0)
                 log_warning("Failed to parse configuration file: %s", strerror(-r));
 
diff --git a/src/core/unit.h b/src/core/unit.h
index 80a96e8053..a972a31366 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -569,6 +569,8 @@ UnitActiveState unit_active_state_from_string(const char *s);
 const char *unit_dependency_to_string(UnitDependency i);
 UnitDependency unit_dependency_from_string(const char *s);
 
+/* Macros which append UNIT= or USER_UNIT= to the message */
+
 #define log_full_unit(level, unit, ...) log_meta_object(level, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__)
 #define log_debug_unit(unit, ...)       log_full_unit(LOG_DEBUG, unit, __VA_ARGS__)
 #define log_info_unit(unit, ...)        log_full_unit(LOG_INFO, unit, __VA_ARGS__)
diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index a540fcb421..ef6189e22d 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -1309,7 +1309,7 @@ static int server_parse_config_file(Server *s) {
                 return -errno;
         }
 
-        r = config_parse(fn, f, "Journal\0", config_item_perf_lookup,
+        r = config_parse(NULL, fn, f, "Journal\0", config_item_perf_lookup,
                          (void*) journald_gperf_lookup, false, s);
         if (r < 0)
                 log_warning("Failed to parse configuration file: %s", strerror(-r));
diff --git a/src/journal/journald-server.h b/src/journal/journald-server.h
index 21edd6bdaf..fb4e8e4c3d 100644
--- a/src/journal/journald-server.h
+++ b/src/journal/journald-server.h
@@ -135,12 +135,12 @@ void server_driver_message(Server *s, sd_id128_t message_id, const char *format,
 /* gperf lookup function */
 const struct ConfigPerfItem* journald_gperf_lookup(const char *key, unsigned length);
 
-int config_parse_storage(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_storage(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 
 const char *storage_to_string(Storage s);
 Storage storage_from_string(const char *s);
 
-int config_parse_split_mode(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_split_mode(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 
 const char *split_mode_to_string(SplitMode s);
 SplitMode split_mode_from_string(const char *s);
diff --git a/src/login/logind-action.c b/src/login/logind-action.c
index 1e529e1c98..4091e411b0 100644
--- a/src/login/logind-action.c
+++ b/src/login/logind-action.c
@@ -21,6 +21,8 @@
 
 #include <unistd.h>
 
+#include <systemd/sd-messages.h>
+
 #include "conf-parser.h"
 #include "special.h"
 #include "dbus-common.h"
diff --git a/src/login/logind-action.h b/src/login/logind-action.h
index 7ab44644f2..df080d98ed 100644
--- a/src/login/logind-action.h
+++ b/src/login/logind-action.h
@@ -49,6 +49,6 @@ int manager_handle_action(
 const char* handle_action_to_string(HandleAction h);
 HandleAction handle_action_from_string(const char *s);
 
-int config_parse_handle_action(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_handle_action(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 
 #endif
diff --git a/src/login/logind.c b/src/login/logind.c
index caed149ad6..66a786a3f8 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -1689,7 +1689,7 @@ static int manager_parse_config_file(Manager *m) {
                 return -errno;
         }
 
-        r = config_parse(fn, f, "Login\0", config_item_perf_lookup, (void*) logind_gperf_lookup, false, m);
+        r = config_parse(NULL, fn, f, "Login\0", config_item_perf_lookup, (void*) logind_gperf_lookup, false, m);
         if (r < 0)
                 log_warning("Failed to parse configuration file: %s", strerror(-r));
 
diff --git a/src/python-systemd/docs/id128.rst b/src/python-systemd/docs/id128.rst
index 12c28f362b..e43776a844 100644
--- a/src/python-systemd/docs/id128.rst
+++ b/src/python-systemd/docs/id128.rst
@@ -36,3 +36,4 @@
    .. autoattribute:: systemd.id128.SD_MESSAGE_UNIT_STARTING
    .. autoattribute:: systemd.id128.SD_MESSAGE_UNIT_STOPPED
    .. autoattribute:: systemd.id128.SD_MESSAGE_UNIT_STOPPING
+   .. autoattribute:: systemd.id128.SD_MESSAGE_CONFIG_ERROR
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index a98805e215..7a986623fb 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -34,6 +34,45 @@
 #include "path-util.h"
 #include "set.h"
 #include "exit-status.h"
+#include "sd-messages.h"
+
+int log_syntax_internal(const char *unit, int level,
+                        const char *file, unsigned line, const char *func,
+                        const char *config_file, unsigned config_line,
+                        int error, const char *format, ...) {
+
+        _cleanup_free_ char *msg = NULL;
+        int r;
+        va_list ap;
+
+        va_start(ap, format);
+        r = vasprintf(&msg, format, ap);
+        va_end(ap);
+        if (r < 0)
+                return log_oom();
+
+        if (unit)
+                r = log_struct_internal(level,
+                                        file, line, func,
+                                        getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit,
+                                        MESSAGE_ID(SD_MESSAGE_CONFIG_ERROR),
+                                        "CONFIG_FILE=%s", config_file,
+                                        "CONFIG_LINE=%u", config_line,
+                                        "ERRNO=%d", error > 0 ? error : EINVAL,
+                                        "MESSAGE=[%s:%u] %s", config_file, config_line, msg,
+                                        NULL);
+        else
+                r = log_struct_internal(level,
+                                        file, line, func,
+                                        MESSAGE_ID(SD_MESSAGE_CONFIG_ERROR),
+                                        "CONFIG_FILE=%s", config_file,
+                                        "CONFIG_LINE=%u", config_line,
+                                        "ERRNO=%d", error > 0 ? error : EINVAL,
+                                        "MESSAGE=[%s:%u] %s", config_file, config_line, msg,
+                                        NULL);
+        log_info("logged here: '%s': %d", msg, r);
+        return r;
+}
 
 int config_item_table_lookup(
                 void *table,
@@ -110,16 +149,16 @@ int config_item_perf_lookup(
 }
 
 /* Run the user supplied parser for an assignment */
-static int next_assignment(
-                const char *filename,
-                unsigned line,
-                ConfigItemLookup lookup,
-                void *table,
-                const char *section,
-                const char *lvalue,
-                const char *rvalue,
-                bool relaxed,
-                void *userdata) {
+static int next_assignment(const char *unit,
+                           const char *filename,
+                           unsigned line,
+                           ConfigItemLookup lookup,
+                           void *table,
+                           const char *section,
+                           const char *lvalue,
+                           const char *rvalue,
+                           bool relaxed,
+                           void *userdata) {
 
         ConfigParserCallback func = NULL;
         int ltype = 0;
@@ -138,29 +177,31 @@ static int next_assignment(
 
         if (r > 0) {
                 if (func)
-                        return func(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+                        return func(unit, filename, line, section, lvalue, ltype,
+                                    rvalue, data, userdata);
 
                 return 0;
         }
 
         /* Warn about unknown non-extension fields. */
         if (!relaxed && !startswith(lvalue, "X-"))
-                log_info("[%s:%u] Unknown lvalue '%s' in section '%s'. Ignoring.", filename, line, lvalue, section);
+                log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
+                           "Unknown lvalue '%s' in section '%s'", lvalue, section);
 
         return 0;
 }
 
 /* Parse a variable assignment line */
-static int parse_line(
-                const char *filename,
-                unsigned line,
-                const char *sections,
-                ConfigItemLookup lookup,
-                void *table,
-                bool relaxed,
-                char **section,
-                char *l,
-                void *userdata) {
+static int parse_line(const char* unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *sections,
+                      ConfigItemLookup lookup,
+                      void *table,
+                      bool relaxed,
+                      char **section,
+                      char *l,
+                      void *userdata) {
 
         char *e;
 
@@ -178,17 +219,13 @@ static int parse_line(
                 return 0;
 
         if (startswith(l, ".include ")) {
-                char *fn;
-                int r;
+                char _cleanup_free_ *fn;
 
                 fn = file_in_same_dir(filename, strstrip(l+9));
                 if (!fn)
                         return -ENOMEM;
 
-                r = config_parse(fn, NULL, sections, lookup, table, relaxed, userdata);
-                free(fn);
-
-                return r;
+                return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, userdata);
         }
 
         if (*l == '[') {
@@ -199,7 +236,8 @@ static int parse_line(
                 assert(k > 0);
 
                 if (l[k-1] != ']') {
-                        log_error("[%s:%u] Invalid section header.", filename, line);
+                        log_syntax(unit, LOG_ERR, filename, line, EBADMSG,
+                                   "Invalid section header '%s'", l);
                         return -EBADMSG;
                 }
 
@@ -210,7 +248,8 @@ static int parse_line(
                 if (sections && !nulstr_contains(sections, n)) {
 
                         if (!relaxed)
-                                log_info("[%s:%u] Unknown section '%s'. Ignoring.", filename, line, n);
+                                log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
+                                           "Unknown section '%s'. Ignoring.", n);
 
                         free(n);
                         *section = NULL;
@@ -225,41 +264,42 @@ static int parse_line(
         if (sections && !*section) {
 
                 if (!relaxed)
-                        log_info("[%s:%u] Assignment outside of section. Ignoring.", filename, line);
+                        log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
+                                   "Assignment outside of section. Ignoring.");
 
                 return 0;
         }
 
         e = strchr(l, '=');
         if (!e) {
-                log_error("[%s:%u] Missing '='.", filename, line);
+                log_syntax(unit, LOG_WARNING, filename, line, EINVAL, "Missing '='.");
                 return -EBADMSG;
         }
 
         *e = 0;
         e++;
 
-        return next_assignment(
-                        filename,
-                        line,
-                        lookup,
-                        table,
-                        *section,
-                        strstrip(l),
-                        strstrip(e),
-                        relaxed,
-                        userdata);
+        return next_assignment(unit,
+                               filename,
+                               line,
+                               lookup,
+                               table,
+                               *section,
+                               strstrip(l),
+                               strstrip(e),
+                               relaxed,
+                               userdata);
 }
 
 /* Go through the file and parse each line */
-int config_parse(
-                const char *filename,
-                FILE *f,
-                const char *sections,
-                ConfigItemLookup lookup,
-                void *table,
-                bool relaxed,
-                void *userdata) {
+int config_parse(const char *unit,
+                 const char *filename,
+                 FILE *f,
+                 const char *sections,
+                 ConfigItemLookup lookup,
+                 void *table,
+                 bool relaxed,
+                 void *userdata) {
 
         unsigned line = 0;
         char _cleanup_free_ *section = NULL, *continuation = NULL;
@@ -323,15 +363,16 @@ int config_parse(
                         continue;
                 }
 
-                r = parse_line(filename,
-                                ++line,
-                                sections,
-                                lookup,
-                                table,
-                                relaxed,
-                                &section,
-                                p,
-                                userdata);
+                r = parse_line(unit,
+                               filename,
+                               ++line,
+                               sections,
+                               lookup,
+                               table,
+                               relaxed,
+                               &section,
+                               p,
+                               userdata);
                 free(c);
 
                 if (r < 0)
@@ -342,7 +383,8 @@ int config_parse(
 }
 
 #define DEFINE_PARSER(type, vartype, conv_func)                         \
-        int config_parse_##type(const char *filename,                   \
+        int config_parse_##type(const char *unit,                       \
+                                const char *filename,                   \
                                 unsigned line,                          \
                                 const char *section,                    \
                                 const char *lvalue,                     \
@@ -361,8 +403,9 @@ int config_parse(
                                                                         \
                 r = conv_func(rvalue, i);                               \
                 if (r < 0)                                              \
-                        log_error("[%s:%u] Failed to parse %s value, ignoring: %s", \
-                                  filename, line, #vartype, rvalue);    \
+                        log_syntax(unit, LOG_ERR, filename, line, -r,   \
+                                   "Failed to parse %s value, ignoring: %s", \
+                                   #vartype, rvalue);                   \
                                                                         \
                 return 0;                                               \
         }
@@ -376,26 +419,29 @@ DEFINE_PARSER(nsec, nsec_t, parse_nsec)
 DEFINE_PARSER(sec, usec_t, parse_sec)
 
 
-int config_parse_bytes_size(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_bytes_size(const char* unit,
+                            const char *filename,
+                            unsigned line,
+                            const char *section,
+                            const char *lvalue,
+                            int ltype,
+                            const char *rvalue,
+                            void *data,
+                            void *userdata) {
 
         size_t *sz = data;
         off_t o;
+        int r;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
         assert(data);
 
-        if (parse_bytes(rvalue, &o) < 0 || (off_t) (size_t) o != o) {
-                log_error("[%s:%u] Failed to parse byte value, ignoring: %s", filename, line, rvalue);
+        r = parse_bytes(rvalue, &o);
+        if (r < 0 || (off_t) (size_t) o != o) {
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse byte value, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -404,17 +450,18 @@ int config_parse_bytes_size(
 }
 
 
-int config_parse_bytes_off(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_bytes_off(const char* unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         off_t *bytes = data;
+        int r;
 
         assert(filename);
         assert(lvalue);
@@ -423,23 +470,23 @@ int config_parse_bytes_off(
 
         assert_cc(sizeof(off_t) == sizeof(uint64_t));
 
-        if (parse_bytes(rvalue, bytes) < 0) {
-                log_error("[%s:%u] Failed to parse bytes value, ignoring: %s", filename, line, rvalue);
-                return 0;
-        }
+        r = parse_bytes(rvalue, bytes);
+        if (r < 0)
+                log_syntax(unit, LOG_ERR, filename, line, -r,
+                           "Failed to parse bytes value, ignoring: %s", rvalue);
 
         return 0;
 }
 
-int config_parse_bool(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_bool(const char* unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *section,
+                      const char *lvalue,
+                      int ltype,
+                      const char *rvalue,
+                      void *data,
+                      void *userdata) {
 
         int k;
         bool *b = data;
@@ -449,8 +496,10 @@ int config_parse_bool(
         assert(rvalue);
         assert(data);
 
-        if ((k = parse_boolean(rvalue)) < 0) {
-                log_error("[%s:%u] Failed to parse boolean value, ignoring: %s", filename, line, rvalue);
+        k = parse_boolean(rvalue);
+        if (k < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -k,
+                           "Failed to parse boolean value, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -458,15 +507,15 @@ int config_parse_bool(
         return 0;
 }
 
-int config_parse_tristate(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_tristate(const char *unit,
+                          const char *filename,
+                          unsigned line,
+                          const char *section,
+                          const char *lvalue,
+                          int ltype,
+                          const char *rvalue,
+                          void *data,
+                          void *userdata) {
 
         int k;
         int *b = data;
@@ -480,7 +529,8 @@ int config_parse_tristate(
 
         k = parse_boolean(rvalue);
         if (k < 0) {
-                log_error("[%s:%u] Failed to parse boolean value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, -k,
+                           "Failed to parse boolean value, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -488,15 +538,15 @@ int config_parse_tristate(
         return 0;
 }
 
-int config_parse_string(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_string(const char *unit,
+                        const char *filename,
+                        unsigned line,
+                        const char *section,
+                        const char *lvalue,
+                        int ltype,
+                        const char *rvalue,
+                        void *data,
+                        void *userdata) {
 
         char **s = data;
         char *n;
@@ -511,7 +561,8 @@ int config_parse_string(
                 return log_oom();
 
         if (!utf8_is_valid(n)) {
-                log_error("[%s:%u] String is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "String is not UTF-8 clean, ignoring assignment: %s", rvalue);
                 free(n);
                 return 0;
         }
@@ -527,15 +578,15 @@ int config_parse_string(
         return 0;
 }
 
-int config_parse_path(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_path(const char *unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *section,
+                      const char *lvalue,
+                      int ltype,
+                      const char *rvalue,
+                      void *data,
+                      void *userdata) {
 
         char **s = data;
         char *n;
@@ -546,12 +597,14 @@ int config_parse_path(
         assert(data);
 
         if (!utf8_is_valid(rvalue)) {
-                log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Path is not UTF-8 clean, ignoring assignment: %s", rvalue);
                 return 0;
         }
 
         if (!path_is_absolute(rvalue)) {
-                log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Not an absolute path, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -567,15 +620,15 @@ int config_parse_path(
         return 0;
 }
 
-int config_parse_strv(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_strv(const char *unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *section,
+                      const char *lvalue,
+                      int ltype,
+                      const char *rvalue,
+                      void *data,
+                      void *userdata) {
 
         char *** sv = data, *w, *state;
         size_t l;
@@ -610,7 +663,8 @@ int config_parse_strv(
                         return log_oom();
 
                 if (!utf8_is_valid(n)) {
-                        log_error("[%s:%u] String is not UTF-8 clean, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "String is not UTF-8 clean, ignoring: %s", rvalue);
                         continue;
                 }
 
@@ -622,15 +676,15 @@ int config_parse_strv(
         return 0;
 }
 
-int config_parse_path_strv(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_path_strv(const char *unit,
+                           const char *filename,
+                           unsigned line,
+                           const char *section,
+                           const char *lvalue,
+                           int ltype,
+                           const char *rvalue,
+                           void *data,
+                           void *userdata) {
 
         char*** sv = data, *w, *state;
         size_t l;
@@ -656,12 +710,14 @@ int config_parse_path_strv(
                         return log_oom();
 
                 if (!utf8_is_valid(n)) {
-                        log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Path is not UTF-8 clean, ignoring assignment: %s", rvalue);
                         continue;
                 }
 
                 if (!path_is_absolute(n)) {
-                        log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Not an absolute path, ignoring: %s", rvalue);
                         continue;
                 }
 
@@ -674,15 +730,15 @@ int config_parse_path_strv(
         return 0;
 }
 
-int config_parse_mode(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_mode(const char *unit,
+                      const char *filename,
+                      unsigned line,
+                      const char *section,
+                      const char *lvalue,
+                      int ltype,
+                      const char *rvalue,
+                      void *data,
+                      void *userdata) {
 
         mode_t *m = data;
         long l;
@@ -696,12 +752,14 @@ int config_parse_mode(
         errno = 0;
         l = strtol(rvalue, &x, 8);
         if (!x || x == rvalue || *x || errno) {
-                log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, errno,
+                           "Failed to parse mode value, ignoring: %s", rvalue);
                 return 0;
         }
 
         if (l < 0000 || l > 07777) {
-                log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                           "Mode value out of range, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -709,15 +767,15 @@ int config_parse_mode(
         return 0;
 }
 
-int config_parse_facility(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_facility(const char *unit,
+                          const char *filename,
+                          unsigned line,
+                          const char *section,
+                          const char *lvalue,
+                          int ltype,
+                          const char *rvalue,
+                          void *data,
+                          void *userdata) {
 
 
         int *o = data, x;
@@ -729,7 +787,8 @@ int config_parse_facility(
 
         x = log_facility_unshifted_from_string(rvalue);
         if (x < 0) {
-                log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse log facility, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -738,15 +797,15 @@ int config_parse_facility(
         return 0;
 }
 
-int config_parse_level(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_level(const char *unit,
+                       const char *filename,
+                       unsigned line,
+                       const char *section,
+                       const char *lvalue,
+                       int ltype,
+                       const char *rvalue,
+                       void *data,
+                       void *userdata) {
 
 
         int *o = data, x;
@@ -758,7 +817,8 @@ int config_parse_level(
 
         x = log_level_from_string(rvalue);
         if (x < 0) {
-                log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Failed to parse log level, ignoring: %s", rvalue);
                 return 0;
         }
 
@@ -766,15 +826,15 @@ int config_parse_level(
         return 0;
 }
 
-int config_parse_set_status(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+int config_parse_set_status(const char *unit,
+                            const char *filename,
+                            unsigned line,
+                            const char *section,
+                            const char *lvalue,
+                            int ltype,
+                            const char *rvalue,
+                            void *data,
+                            void *userdata) {
 
         char *w;
         size_t l;
@@ -817,18 +877,21 @@ int config_parse_set_status(
 
                                 r = set_put(status_set->signal, INT_TO_PTR(val));
                                 if (r < 0) {
-                                        log_error("[%s:%u] Unable to store: %s", filename, line, w);
+                                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                                   "Unable to store: %s", w);
                                         return r;
                                 }
                         } else {
-                                log_error("[%s:%u] Failed to parse value, ignoring: %s", filename, line, w);
+                                log_syntax(unit, LOG_ERR, filename, line, -val,
+                                           "Failed to parse value, ignoring: %s", w);
                                 return 0;
                         }
                 } else {
                         free(temp);
 
                         if (val < 0 || val > 255)
-                                log_warning("[%s:%u] Value %d is outside range 0-255, ignoring", filename, line, val);
+                                log_syntax(unit, LOG_ERR, filename, line, ERANGE,
+                                           "Value %d is outside range 0-255, ignoring", val);
                         else {
                                 r = set_ensure_allocated(&status_set->code, trivial_hash_func, trivial_compare_func);
                                 if (r < 0)
@@ -836,7 +899,8 @@ int config_parse_set_status(
 
                                 r = set_put(status_set->code, INT_TO_PTR(val));
                                 if (r < 0) {
-                                        log_error("[%s:%u] Unable to store: %s", filename, line, w);
+                                        log_syntax(unit, LOG_ERR, filename, line, -r,
+                                                   "Unable to store: %s", w);
                                         return r;
                                 }
                         }
diff --git a/src/shared/conf-parser.h b/src/shared/conf-parser.h
index 88194f6771..9ea84e652b 100644
--- a/src/shared/conf-parser.h
+++ b/src/shared/conf-parser.h
@@ -24,19 +24,21 @@
 #include <stdio.h>
 #include <stdbool.h>
 
+#include "macro.h"
+
 /* An abstract parser for simple, line based, shallow configuration
  * files consisting of variable assignments only. */
 
 /* Prototype for a parser for a specific configuration setting */
-typedef int (*ConfigParserCallback)(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata);
+typedef int (*ConfigParserCallback)(const char *unit,
+                                    const char *filename,
+                                    unsigned line,
+                                    const char *section,
+                                    const char *lvalue,
+                                    int ltype,
+                                    const char *rvalue,
+                                    void *data,
+                                    void *userdata);
 
 /* Wraps information for parsing a specific configuration variable, to
  * be stored in a simple array */
@@ -78,46 +80,57 @@ int config_item_table_lookup(void *table, const char *section, const char *lvalu
  * ConfigPerfItem tables */
 int config_item_perf_lookup(void *table, const char *section, const char *lvalue, ConfigParserCallback *func, int *ltype, void **data, void *userdata);
 
-int config_parse(
-                const char *filename,
-                FILE *f,
-                const char *sections,  /* nulstr */
-                ConfigItemLookup lookup,
-                void *table,
-                bool relaxed,
-                void *userdata);
+int config_parse(const char *unit,
+                 const char *filename,
+                 FILE *f,
+                 const char *sections,  /* nulstr */
+                 ConfigItemLookup lookup,
+                 void *table,
+                 bool relaxed,
+                 void *userdata);
 
 /* Generic parsers */
-int config_parse_int(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_unsigned(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_long(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_uint64(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_double(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_bytes_size(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_bytes_off(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_bool(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_tristate(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_string(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_path(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_strv(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_path_strv(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_sec(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_nsec(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_mode(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_facility(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_level(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_set_status(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_int(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unsigned(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_long(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_uint64(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_double(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_bytes_size(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_bytes_off(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_bool(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_tristate(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_string(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_path(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_strv(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_path_strv(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_sec(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_nsec(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_mode(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_facility(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_level(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_set_status(const char *unit, const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+int log_syntax_internal(const char *unit, int level,
+                        const char *file, unsigned line, const char *func,
+                        const char *config_file, unsigned config_line,
+                        int error, const char *format, ...) _printf_attr_(9, 10);
+
+#define log_syntax(unit, level, config_file, config_line, error, ...)   \
+        log_syntax_internal(unit, level,                                \
+                            __FILE__, __LINE__, __func__,               \
+                            config_file, config_line,                   \
+                            error, __VA_ARGS__)
 
 #define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg)                \
-        int function(                                                   \
-                        const char *filename,                           \
-                        unsigned line,                                  \
-                        const char *section,                            \
-                        const char *lvalue,                             \
-                        int ltype,                                      \
-                        const char *rvalue,                             \
-                        void *data,                                     \
-                        void *userdata) {                               \
+        int function(const char *unit,                                  \
+                     const char *filename,                              \
+                     unsigned line,                                     \
+                     const char *section,                               \
+                     const char *lvalue,                                \
+                     int ltype,                                         \
+                     const char *rvalue,                                \
+                     void *data,                                        \
+                     void *userdata) {                                  \
                                                                         \
                 type *i = data, x;                                      \
                                                                         \
@@ -127,11 +140,11 @@ int config_parse_set_status(const char *filename, unsigned line, const char *sec
                 assert(data);                                           \
                                                                         \
                 if ((x = name##_from_string(rvalue)) < 0) {             \
-                        log_error("[%s:%u] " msg ", ignoring: %s", filename, line, rvalue); \
+                        log_syntax(unit, LOG_ERR, filename, line, -x,   \
+                                   msg ", ignoring: %s", rvalue);       \
                         return 0;                                       \
                 }                                                       \
                                                                         \
                 *i = x;                                                 \
-                                                                        \
                 return 0;                                               \
         }
diff --git a/src/shared/install.c b/src/shared/install.c
index 71e04335ef..75d6ca3619 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -921,15 +921,15 @@ static int install_info_add_auto(
                 return install_info_add(c, name_or_path, NULL);
 }
 
-static int config_parse_also(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+static int config_parse_also(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         char *w;
         size_t l;
@@ -956,15 +956,15 @@ static int config_parse_also(
         return 0;
 }
 
-static int config_parse_user(
-                const char *filename,
-                unsigned line,
-                const char *section,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
+static int config_parse_user(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
 
         InstallInfo *i = data;
         char* printed;
@@ -1016,7 +1016,8 @@ static int unit_file_load(
                 return -ENOMEM;
         }
 
-        r = config_parse(path, f, NULL, config_item_table_lookup, (void*) items, true, info);
+        r = config_parse(NULL, path, f, NULL,
+                         config_item_table_lookup, (void*) items, true, info);
         if (r < 0)
                 return r;
 
diff --git a/src/systemd/sd-messages.h b/src/systemd/sd-messages.h
index 92a731dfc2..a377d0229d 100644
--- a/src/systemd/sd-messages.h
+++ b/src/systemd/sd-messages.h
@@ -73,6 +73,8 @@ extern "C" {
 #define SD_MESSAGE_SUSPEND_KEY      SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,72)
 #define SD_MESSAGE_HIBERNATE_KEY    SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,73)
 
+#define SD_MESSAGE_CONFIG_ERROR     SD_ID128_MAKE(c7,72,d2,4e,9a,88,4c,be,b9,ea,12,62,5c,30,6c,01)
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/test/test-unit-file.c b/src/test/test-unit-file.c
index 5cc755bb80..31b0fb2665 100644
--- a/src/test/test-unit-file.c
+++ b/src/test/test-unit-file.c
@@ -85,13 +85,13 @@ static void test_config_parse_exec(void) {
         ExecCommand *c = NULL, *c1;
 
         /* basic test */
-        r = config_parse_exec("fake", 1, "section",
+        r = config_parse_exec(NULL, "fake", 1, "section",
                               "LValue", 0, "/RValue r1",
                               &c, NULL);
         assert_se(r >= 0);
         check_execcommand(c, "/RValue", "/RValue", "r1", false);
 
-        r = config_parse_exec("fake", 2, "section",
+        r = config_parse_exec(NULL, "fake", 2, "section",
                               "LValue", 0, "/RValue///slashes/// r1",
                               &c, NULL);
        /* test slashes */
@@ -101,7 +101,7 @@ static void test_config_parse_exec(void) {
                           "r1", false);
 
         /* honour_argv0 */
-        r = config_parse_exec("fake", 3, "section",
+        r = config_parse_exec(NULL, "fake", 3, "section",
                               "LValue", 0, "@/RValue///slashes2/// argv0 r1",
                               &c, NULL);
         assert_se(r >= 0);
@@ -109,7 +109,7 @@ static void test_config_parse_exec(void) {
         check_execcommand(c1, "/RValue/slashes2", "argv0", "r1", false);
 
         /* ignore && honour_argv0 */
-        r = config_parse_exec("fake", 4, "section",
+        r = config_parse_exec(NULL, "fake", 4, "section",
                               "LValue", 0, "-@/RValue///slashes3/// argv0a r1",
                               &c, NULL);
         assert_se(r >= 0);
@@ -118,7 +118,7 @@ static void test_config_parse_exec(void) {
                           "/RValue/slashes3", "argv0a", "r1", true);
 
         /* ignore && honour_argv0 */
-        r = config_parse_exec("fake", 4, "section",
+        r = config_parse_exec(NULL, "fake", 4, "section",
                               "LValue", 0, "@-/RValue///slashes4/// argv0b r1",
                               &c, NULL);
         assert_se(r >= 0);
@@ -127,21 +127,21 @@ static void test_config_parse_exec(void) {
                           "/RValue/slashes4", "argv0b", "r1", true);
 
         /* ignore && ignore */
-        r = config_parse_exec("fake", 4, "section",
+        r = config_parse_exec(NULL, "fake", 4, "section",
                               "LValue", 0, "--/RValue argv0 r1",
                               &c, NULL);
         assert_se(r == 0);
         assert_se(c1->command_next == NULL);
 
         /* ignore && ignore */
-        r = config_parse_exec("fake", 4, "section",
+        r = config_parse_exec(NULL, "fake", 4, "section",
                               "LValue", 0, "-@-/RValue argv0 r1",
                               &c, NULL);
         assert_se(r == 0);
         assert_se(c1->command_next == NULL);
 
         /* semicolon */
-        r = config_parse_exec("fake", 5, "section",
+        r = config_parse_exec(NULL, "fake", 5, "section",
                               "LValue", 0,
                               "-@/RValue argv0 r1 ; "
                               "/goo/goo boo",
@@ -156,7 +156,7 @@ static void test_config_parse_exec(void) {
                           "/goo/goo", "/goo/goo", "boo", false);
 
         /* trailing semicolon */
-        r = config_parse_exec("fake", 5, "section",
+        r = config_parse_exec(NULL, "fake", 5, "section",
                               "LValue", 0,
                               "-@/RValue argv0 r1 ; ",
                               &c, NULL);
@@ -168,7 +168,7 @@ static void test_config_parse_exec(void) {
         assert_se(c1->command_next == NULL);
 
         /* escaped semicolon */
-        r = config_parse_exec("fake", 5, "section",
+        r = config_parse_exec(NULL, "fake", 5, "section",
                               "LValue", 0,
                               "/usr/bin/find \\;",
                               &c, NULL);
diff --git a/src/tty-ask-password-agent/tty-ask-password-agent.c b/src/tty-ask-password-agent/tty-ask-password-agent.c
index 1f55e3229b..6888a64d4d 100644
--- a/src/tty-ask-password-agent/tty-ask-password-agent.c
+++ b/src/tty-ask-password-agent/tty-ask-password-agent.c
@@ -275,7 +275,7 @@ static int parse_password(const char *filename, char **wall) {
                 return -errno;
         }
 
-        r = config_parse(filename, f, NULL, config_item_table_lookup, (void*) items, true, NULL);
+        r = config_parse(NULL, filename, f, NULL, config_item_table_lookup, (void*) items, true, NULL);
         if (r < 0) {
                 log_error("Failed to parse password file %s: %s", filename, strerror(-r));
                 goto finish;