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-rw-r--r--src/shared/log.c132
-rw-r--r--src/shared/log.h43
-rw-r--r--src/udev/udev-builtin-kmod.c24
3 files changed, 97 insertions, 102 deletions
diff --git a/src/shared/log.c b/src/shared/log.c
index d19103a1e2..6ed18e36da 100644
--- a/src/shared/log.c
+++ b/src/shared/log.c
@@ -102,8 +102,8 @@ void log_close_syslog(void) {
}
static int create_log_socket(int type) {
- int fd;
struct timeval tv;
+ int fd;
fd = socket(AF_UNIX, type|SOCK_CLOEXEC, 0);
if (fd < 0)
@@ -118,18 +118,20 @@ static int create_log_socket(int type) {
timeval_store(&tv, 10 * USEC_PER_MSEC);
else
timeval_store(&tv, 10 * USEC_PER_SEC);
- (void)setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
+ (void) setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
return fd;
}
static int log_open_syslog(void) {
- int r;
- union sockaddr_union sa = {
+
+ static const union sockaddr_union sa = {
.un.sun_family = AF_UNIX,
.un.sun_path = "/dev/log",
};
+ int r;
+
if (syslog_fd >= 0)
return 0;
@@ -240,10 +242,11 @@ void log_set_max_level(int level) {
static int write_to_console(
int level,
- const char*file,
+ int error,
+ const char *file,
int line,
const char *func,
- const char *object_name,
+ const char *object_field,
const char *object,
const char *buffer) {
@@ -294,15 +297,16 @@ static int write_to_console(
}
static int write_to_syslog(
- int level,
- const char*file,
- int line,
- const char *func,
- const char *object_name,
- const char *object,
- const char *buffer) {
+ int level,
+ int error,
+ const char *file,
+ int line,
+ const char *func,
+ const char *object_field,
+ const char *object,
+ const char *buffer) {
- char header_priority[16], header_time[64], header_pid[16];
+ char header_priority[1 + DECIMAL_STR_MAX(int) + 2], header_time[64], header_pid[1 + DECIMAL_STR_MAX(pid_t) + 4];
struct iovec iovec[5] = {};
struct msghdr msghdr = {
.msg_iov = iovec,
@@ -356,15 +360,16 @@ static int write_to_syslog(
}
static int write_to_kmsg(
- int level,
- const char*file,
- int line,
- const char *func,
- const char *object_name,
- const char *object,
- const char *buffer) {
+ int level,
+ int error,
+ const char*file,
+ int line,
+ const char *func,
+ const char *object_field,
+ const char *object,
+ const char *buffer) {
- char header_priority[16], header_pid[16];
+ char header_priority[1 + DECIMAL_STR_MAX(int) + 2], header_pid[1 + DECIMAL_STR_MAX(pid_t) + 4];
struct iovec iovec[5] = {};
if (kmsg_fd < 0)
@@ -388,45 +393,15 @@ static int write_to_kmsg(
return 1;
}
-static int log_do_header(char *header, size_t size,
- int level,
- const char *file, int line, const char *func,
- const char *object_name, const char *object) {
- snprintf(header, size,
- "PRIORITY=%i\n"
- "SYSLOG_FACILITY=%i\n"
- "%s%.*s%s"
- "%s%.*i%s"
- "%s%.*s%s"
- "%s%.*s%s"
- "SYSLOG_IDENTIFIER=%s\n",
- LOG_PRI(level),
- LOG_FAC(level),
- file ? "CODE_FILE=" : "",
- file ? LINE_MAX : 0, file, /* %.0s means no output */
- file ? "\n" : "",
- line ? "CODE_LINE=" : "",
- line ? 1 : 0, line, /* %.0d means no output too, special case for 0 */
- line ? "\n" : "",
- func ? "CODE_FUNCTION=" : "",
- func ? LINE_MAX : 0, func,
- func ? "\n" : "",
- object ? object_name : "",
- object ? LINE_MAX : 0, object, /* %.0s means no output */
- object ? "\n" : "",
- program_invocation_short_name);
- header[size - 1] = '\0';
- return 0;
-}
-
static int log_dispatch(
- int level,
- const char*file,
- int line,
- const char *func,
- const char *object_name,
- const char *object,
- char *buffer) {
+ int level,
+ int error,
+ const char*file,
+ int line,
+ const char *func,
+ const char *object_field,
+ const char *object,
+ char *buffer) {
int r = 0;
@@ -455,8 +430,7 @@ static int log_dispatch(
if (log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
log_target == LOG_TARGET_SYSLOG) {
- k = write_to_syslog(level, file, line, func,
- object_name, object, buffer);
+ k = write_to_syslog(level, error, file, line, func, object_field, object, buffer);
if (k < 0) {
if (k != -EAGAIN)
log_close_syslog();
@@ -471,8 +445,7 @@ static int log_dispatch(
log_target == LOG_TARGET_SYSLOG_OR_KMSG ||
log_target == LOG_TARGET_KMSG)) {
- k = write_to_kmsg(level, file, line, func,
- object_name, object, buffer);
+ k = write_to_kmsg(level, error, file, line, func, object_field, object, buffer);
if (k < 0) {
log_close_kmsg();
log_open_console();
@@ -481,8 +454,7 @@ static int log_dispatch(
}
if (k <= 0) {
- k = write_to_console(level, file, line, func,
- object_name, object, buffer);
+ k = write_to_console(level, error, file, line, func, object_field, object, buffer);
if (k < 0)
return k;
}
@@ -495,6 +467,7 @@ static int log_dispatch(
int log_metav(
int level,
+ int error,
const char*file,
int line,
const char *func,
@@ -510,27 +483,34 @@ int log_metav(
vsnprintf(buffer, sizeof(buffer), format, ap);
char_array_0(buffer);
- return log_dispatch(level, file, line, func, NULL, NULL, buffer);
+ return log_dispatch(level, error, file, line, func, NULL, NULL, buffer);
}
int log_meta(
- int level,
- const char*file,
- int line,
- const char *func,
- const char *format, ...) {
+ int level,
+ int error,
+ const char*file,
+ int line,
+ const char *func,
+ const char *format, ...) {
int r;
va_list ap;
va_start(ap, format);
- r = log_metav(level, file, line, func, format, ap);
+ r = log_metav(level, error, file, line, func, format, ap);
va_end(ap);
return r;
}
-static void log_assert(int level, const char *text, const char *file, int line, const char *func, const char *format) {
+static void log_assert(
+ int level,
+ const char *text,
+ const char *file,
+ int line,
+ const char *func,
+ const char *format) {
static char buffer[LINE_MAX];
if (_likely_(LOG_PRI(level) > log_max_level))
@@ -543,7 +523,7 @@ static void log_assert(int level, const char *text, const char *file, int line,
char_array_0(buffer);
log_abort_msg = buffer;
- log_dispatch(level, file, line, func, NULL, NULL, buffer);
+ log_dispatch(level, 0, file, line, func, NULL, NULL, buffer);
}
noreturn void log_assert_failed(const char *text, const char *file, int line, const char *func) {
@@ -557,7 +537,7 @@ noreturn void log_assert_failed_unreachable(const char *text, const char *file,
}
int log_oom_internal(const char *file, int line, const char *func) {
- log_meta(LOG_ERR, file, line, func, "Out of memory.");
+ log_meta(LOG_ERR, ENOMEM, file, line, func, "Out of memory.");
return -ENOMEM;
}
diff --git a/src/shared/log.h b/src/shared/log.h
index 30f0cacb65..7d65aec055 100644
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -54,24 +54,27 @@ void log_close_console(void);
int log_meta(
int level,
+ int error,
const char*file,
int line,
const char *func,
- const char *format, ...) _printf_(5,6);
+ const char *format, ...) _printf_(6,7);
int log_metav(
int level,
+ int error,
const char*file,
int line,
const char *func,
const char *format,
- va_list ap) _printf_(5,0);
+ va_list ap) _printf_(6,0);
int log_oom_internal(
const char *file,
int line,
const char *func);
+/* Logging for various assertions */
noreturn void log_assert_failed(
const char *text,
const char *file,
@@ -85,17 +88,30 @@ noreturn void log_assert_failed_unreachable(
const char *func);
-#define log_full(level, ...) \
-do { \
- if (log_get_max_level() >= (level)) \
- log_meta((level), __FILE__, __LINE__, __func__, __VA_ARGS__); \
-} while (0)
+/* Logging with level */
+#define log_full_errno(level, error, ...) \
+ do { \
+ if (log_get_max_level() >= (level)) \
+ log_meta((level), error, __FILE__, __LINE__, __func__, __VA_ARGS__); \
+ } while (false)
-#define log_debug(...) log_full(LOG_DEBUG, __VA_ARGS__)
-#define log_info(...) log_full(LOG_INFO, __VA_ARGS__)
-#define log_notice(...) log_full(LOG_NOTICE, __VA_ARGS__)
-#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
-#define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
+#define log_full(level, ...) log_full_errno(level, 0, __VA_ARGS__)
+
+/* Normal logging */
+#define log_debug(...) log_full(LOG_DEBUG, __VA_ARGS__)
+#define log_info(...) log_full(LOG_INFO, __VA_ARGS__)
+#define log_notice(...) log_full(LOG_NOTICE, __VA_ARGS__)
+#define log_warning(...) log_full(LOG_WARNING, __VA_ARGS__)
+#define log_error(...) log_full(LOG_ERR, __VA_ARGS__)
+#define log_emergency(...) log_full(getpid() == 1 ? LOG_EMERG : LOG_ERR, __VA_ARGS__)
+
+/* Logging triggered by an errno-like error */
+#define log_debug_errno(error, ...) log_full_errno(LOG_DEBUG, error, __VA_ARGS__)
+#define log_info_errno(error, ...) log_full_errno(LOG_INFO, error, __VA_ARGS__)
+#define log_notice_errno(error, ...) log_full_errno(LOG_NOTICE, error, __VA_ARGS__)
+#define log_warning_errno(error, ...) log_full_errno(LOG_WARNING, error, __VA_ARGS__)
+#define log_error_errno(error, ...) log_full_errno(LOG_ERR, error, __VA_ARGS__)
+#define log_emergency_errno(error, ...) log_full_errno(getpid() == 1 ? LOG_EMERG : LOG_ERR, error, __VA_ARGS__)
#ifdef LOG_TRACE
# define log_trace(...) log_debug(__VA_ARGS__)
@@ -103,7 +119,8 @@ do { \
# define log_trace(...) do {} while(0)
#endif
-#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
+/* This modifies the buffer passed! */
+//#define log_dump(level, buffer) log_dump_internal(level, 0, __FILE__, __LINE__, __func__, buffer)
#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)
diff --git a/src/udev/udev-builtin-kmod.c b/src/udev/udev-builtin-kmod.c
index 5c50f7856d..0d9c9d9c1a 100644
--- a/src/udev/udev-builtin-kmod.c
+++ b/src/udev/udev-builtin-kmod.c
@@ -34,7 +34,7 @@
#include "udev.h"
-static struct kmod_ctx *ctx;
+static struct kmod_ctx *ctx = NULL;
static int load_module(struct udev *udev, const char *alias) {
int err;
@@ -47,18 +47,18 @@ static int load_module(struct udev *udev, const char *alias) {
return err;
if (list == NULL)
- log_debug("no module matches '%s'", alias);
+ log_debug("No module matches '%s'", alias);
kmod_list_foreach(l, list) {
struct kmod_module *mod = kmod_module_get_module(l);
err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL);
if (err == KMOD_PROBE_APPLY_BLACKLIST)
- log_debug("module '%s' is blacklisted", kmod_module_get_name(mod));
+ log_debug("Module '%s' is blacklisted", kmod_module_get_name(mod));
else if (err == 0)
- log_debug("inserted '%s'", kmod_module_get_name(mod));
+ log_debug("Inserted '%s'", kmod_module_get_name(mod));
else
- log_debug("failed to insert '%s'", kmod_module_get_name(mod));
+ log_debug("Failed to insert '%s'", kmod_module_get_name(mod));
kmod_module_unref(mod);
}
@@ -85,10 +85,8 @@ static int load_module(struct udev *udev, const char *alias) {
return err;
}
-_printf_(6,0)
-static void udev_kmod_log(void *data, int priority, const char *file, int line,
- const char *fn, const char *format, va_list args) {
- log_metav(priority, file, line, fn, format, args);
+_printf_(6,0) static void udev_kmod_log(void *data, int priority, const char *file, int line, const char *fn, const char *format, va_list args) {
+ log_metav(priority, 0, file, line, fn, format, args);
}
static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool test) {
@@ -106,7 +104,7 @@ static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool te
}
for (i = 2; argv[i]; i++) {
- log_debug("execute '%s' '%s'", argv[1], argv[i]);
+ log_debug("Execute '%s' '%s'", argv[1], argv[i]);
load_module(udev, argv[i]);
}
@@ -123,7 +121,7 @@ static int builtin_kmod_init(struct udev *udev) {
if (!ctx)
return -ENOMEM;
- log_debug("load module index");
+ log_debug("Load module index");
kmod_set_log_fn(ctx, udev_kmod_log, udev);
kmod_load_resources(ctx);
#endif
@@ -133,7 +131,7 @@ static int builtin_kmod_init(struct udev *udev) {
/* called on udev shutdown and reload request */
static void builtin_kmod_exit(struct udev *udev) {
#ifdef HAVE_LIBKMOD
- log_debug("unload module index");
+ log_debug("Unload module index");
ctx = kmod_unref(ctx);
#endif
}
@@ -141,7 +139,7 @@ static void builtin_kmod_exit(struct udev *udev) {
#ifdef HAVE_LIBKMOD
/* called every couple of seconds during event activity; 'true' if config has changed */
static bool builtin_kmod_validate(struct udev *udev) {
- log_debug("validate module index");
+ log_debug("Validate module index");
if (!ctx)
return false;
return (kmod_validate_resources(ctx) != KMOD_RESOURCES_OK);